• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    HOUSING STRUCTURE FOR FLUID PRESSURE DEVICE In a housing structure for a fluid pressure device, a filter (12) that forms part of a fluid pressure unit (10) is equipped with a first body (20), a housing unit (22) connected to a lower portion of the first body (20), and a filter unit (24) accommodated within the housing unit (22). The housing unit (22) consists of an outer shell (40), which is formed as a cylinder with a bottom made of a transparent material permeable to light, and an inner shell (42) inserted inside the outer shell ( 40). Additionally, by inserting the housing unit (22) into an installation hole (36) that opens in a lower portion of the first body (20) and rotating the housing unit (22), projections (58) and retaining walls (56) provided on an external circumferential surface of the housing unit (22) fit with support members (38) provided in the installation hole (36), thus placing the housing unit (22) in a connected state.
    公开号:BR112013028884B1
    申请号:R112013028884-1
    申请日:2011-07-21
    公开日:2020-11-03
    发明作者:Norihide Yamase；Daisuke Oikawa
    申请人:Smc Kabushiki Kaisha；
    IPC主号:
    专利说明:

    Technical Field
    The present invention relates to a casing structure used in a fluid pressure device through which a pressure fluid flows through the interior thereof. Background Technique
    As set out in Japanese Open Utility Model Publication No. 05-009618, the present applicant has proposed a filter (fluid pressure device) for removing dust, particulates and the like contained in a pressure fluid. The filter comprises a body that has ports there for supplying and discharging the pressure fluid, a hollow casing disposed in a lower portion of the body, and a filter element, which is capable of removing dust and the like, accommodated within the casing. In addition, a casing cover, which covers the casing, is provided on an outer circumferential side of the casing. A confirmation port is provided on the housing cover to allow confirmation from the outside of the condition of the filter element within the housing. Summary of the Invention
    A general objective of the present invention is to provide an enclosure structure for a fluid pressure device, which allows an enclosure to be reliably and easily connected with respect to a body, which allows the interior of the enclosure to be viewed from within. reliably and easily from the outside, and which is able to improve the durability of the enclosure.
    The present invention is a housing structure for a fluid pressure device that has a housing into which a pressure fluid is introduced into the fluid pressure device comprising: a body that has ports through which the pressure fluid is supplied and discharged; e The enclosure formed as a cylinder with a bottom, which is connected to an installation hole of the body, the interior of the enclosure in communication with the doors, in which the enclosure is permeable to light, in order to allow visibility of the interior of the enclosure. same, and includes a first casing portion and a second casing portion disposed within the first casing portion, and wherein a first engaging member, which is disposed on an outer circumferential surface of at least one of the first portion housing and the second housing portion, engages with a second fitting member formed on an internal circumferential surface of the installation hole.
    According to the present invention, in the fluid pressure device, the casing into which the pressure fluid is introduced into it is formed to be permeable to light to allow visibility of the interior. In addition, the fluid pressure device consists of the first housing portion and the second housing portion. In conjunction with this, the first fitting members are provided on the outer circumferential surface of the housing, and second fitting members are formed in the installation hole of the body, whereby the housing and the body can be connected by fitting the first members. with the second locking members.
    Therefore, by fitting the housing with the second fitting members that are formed in the installation hole of the body, the housing can be connected reliably and easily with respect to the body. In conjunction with this, due to the fact that the inside of the enclosure is visible from the outside, the condition (for example, the amount of dust or moisture contained all) of the pressure fluid introduced inside can be reliably and easily confirmed from the entire outer circumferential surface of the enclosure.
    Also, due to the fact that the second housing portion is disposed within the first housing portion, and the second housing portion is not exposed to the outside, for example, gas, solvents or the like that may be present in the installation environment of the fluid pressure device can be prevented from contacting and adhering with respect to the second housing portion. Because of this, the durability of the second housing portion can be improved.
    The above and other objectives, resources and advantages of the present invention will become more evident from the following description, when taken in conjunction with the associated drawings, in which the preferred embodiments of the present invention are shown by way of illustrative example. Brief Description of Drawings
    Figure 1 is an outside perspective view of a fluid pressure unit in which a housing structure according to a first embodiment of the present invention is applied; figure 2 is a front view of the fluid pressure unit shown in figure 1; figure 3 is an exploded perspective view of a filter that forms part of the fluid pressure unit of figure 1; figure 4 is a general cross-sectional view of the filter shown in figure 3; figure 5 is an exploded perspective view of a filter that forms part of the fluid pressure unit of figure 1; figure 6 is an exploded perspective view of a housing unit that forms part of the filter of figure 5; figure 7 is an exploded perspective view of a filter unit that forms part of the filter of figure 5; figure 8A is a cross-sectional view taken along line VIIIA-VIIIA in figure 2; figure 8B is a cross-sectional view showing a condition in which a release button in figure 8A is lowered and a state of regulated rotation between a first body and a housing unit is released; figure 9 is a general cross-sectional view of a lubricant that forms part of the fluid pressure unit of figure 1; figure 10 is an exploded perspective view of a housing unit that forms part of the lubricant of figure 1; figure 11 is an outside perspective view of a fluid pressure unit to which a housing structure according to a second embodiment of the present invention is applied; figure 12 is a front view of the fluid pressure unit shown in figure 11; and figure 13 is a general cross-sectional view of a filter regulator that forms part of the fluid pressure unit of figure 12. Description of Modalities
    In figure 1, reference number 10 indicates a fluid pressure unit that includes fluid pressure devices to which the housing structure according to the first embodiment of the present invention is applied.
    As shown in figures 1 and 2, the fluid pressure unit 10 consists of a filter 12 that removes dust, particles and the like contained in the pressure fluid, a regulator 14 that reduces the pressure fluid pressure, a lubricant 16 that mix a lubricating oil with respect to the pressure fluid, and connectors 18a, 18b that connect the filter 12, the regulator 14 and the lubricant 16 together mutually. The aforementioned filter 12, regulator 14 and lubricant 16 function as fluid pressure devices to which a pressure fluid is supplied to the interiors thereof. Regulator 14 is disposed between the filter 12 and the lubricant 16.
    As shown in figures 1 to 7, the filter 12 includes a first body (body) 20, a housing unit (housing) 22 connected to a lower part of the first body 20, and a filter unit 24 which is installed inside the housing unit 22. First and second ports (ports) 26, 28 for supplying and discharging a pressure fluid are provided laterally, that is, on the respective sides, of the first body 20, the first and second ports 26, 28 opening approximately in a horizontal direction (see figure 4). The first port 26 is connected to a tube not shown, and the pressure fluid is supplied through that tube. The first port 26 communicates with a first communication passage 30 which extends in the axial direction (the direction of arrows A and B) through the interior of the first body 20.
    The second port 28 discharges the pressure fluid supplied through the first port 26 to a regulator described later 14. The second port 28 communicates with a second communication passage 32 that extends in the axial direction (the direction of arrows A and B ) through the interior of the first body 20.
    In addition, pairs of interlocking projections 34a, 34b, each of which is formed in a mutual confronting relationship on the outer edges of end surfaces on which the first and second doors 26, 28 are provided, are arranged on lateral surfaces of the first body 20.
    An installation hole 36 into which the housing unit 22 is inserted opens in a lower part of the first body 20. The first communication passage 30 communicates with an external circumferential side of the installation hole 36, which is formed with a approximately circular shape in the cross section, while the second communication passage 32 communicates with a central portion of the installation hole 36.
    As shown in figures 3 and 4, a plurality of support members (second locking members) 38, which project radially inwardly, are formed on the inner circumferential surface of the installation hole 36. The projections (first locking members) 58 of an inner shell (second shell portion) 42 that constitutes the shell unit 22, and retaining walls (first engaging members) 56 of an outer shell 40 (first shell portion) are fitted with the support members 38 The support members 38 are separated at equal intervals from each other along the circumferential direction of the installation hole 36.
    The housing unit 22 includes the outer shell 40 formed as a cylinder with a bottom, and the inner shell 42 which is inserted into the outer shell 40, a release button (operating button) 44 arranged for displacement with respect to the shell outer 40, and a drain cock 46 disposed in bottom parts of outer shell 40 and inner shell 42. Outer shell 40 is formed with a substantially constant diameter and a predetermined length in the axial direction (the direction of arrows A and B ) from a transparent resin material permeable to light (acrylic, polycarbonate, etc.). A bottom portion of the outer shell 40 is formed in a hemispherical shape, and the upper end of the outer shell 40 opens upwards.
    A pair of connecting tabs 48a, 48b (see figure 6) projecting upwards (in the direction of arrow A) in the axial direction is formed in an upper portion of the outer shell 40, and a button hole 50 in which the release button 44 described later is assembled is formed in a position located between one of the connecting tabs 48a and the other of the connecting tabs 48b. The connecting tabs 48a, 48b are capable of being deformed in radial directions of the outer shell 40. The holes 54, with which the respective projections 52 of the inner shell 42 are interlockable, are arranged in approximately central portions of the connecting tabs 48a, 48b. Holes 54 open in approximately rectangular shapes.
    In addition, the button hole 50, which is formed as an approximately rectangular cutout, extends in the axial direction downwards (in the direction of the arrow B) from the upper edge of the outer shell 40.
    Furthermore, a plurality of retaining walls 56, which gradually expand in diameter in a radially outward direction, is formed in an upper portion of the outer shell 40. The retaining walls 56 are mutually separated at substantially equal intervals along from the circumferential direction of the outer shell 40, so that the projections 58 are capable of being retained by the retaining walls 56, if the inner shell 42 is accommodated within the outer shell 40.
    On the other hand, a protrusion hole 60, into which a drain protrusion 68 (described later) of the inner shell 42 is inserted, is formed at a substantially central location along the geometric axis of a bottom part of the outer shell 40 The inner shell 42, similar to the outer shell 40, is formed with a substantially constant diameter, for example, from a transparent resin material permeable to light (polycarbonate or similar) and extends for a predetermined length along the direction axial (the direction of arrows A and B). A bottom portion of the inner shell 42 is formed in a hemispherical shape, and the upper end of the shell opens upwards. The outer diameter of the inner shell 42 is equal to or set slightly smaller than the inner diameter of the outer shell 40 (see figure 4). In addition, the inner shell 42 is accommodated within the outer shell 40, so that the inner shell 42 is not exposed to the interior of the outer shell 40.
    In addition, a plurality of projections 58, which project radially outwardly from their outer circumferential surface, are formed in an upper portion of the inner shell 42, the projections 58 being arranged at substantially equal intervals mutually along the circumferential direction inner housing 42. The numbers of projections 58 and retaining walls 56 are set to the same numbers as the support members 38 of the first body 20, and the gap between the projections 58 and adjacent retaining walls 56 is set to be the same as the gap between adjacent support members 38.
    Inclined surfaces, which are tilted upwards, are provided in lower portions of the projections 58, while the projections 58 have flat shapes extending substantially horizontally on the upper surfaces of the projections 58. In addition, if the inner shell 42 is accommodated within the outer shell 40, the inclined surfaces of the projections will be retained in confinement respectively against the retaining walls 56.
    In addition, between two adjacent projections 58, a pair of projections 52 is provided, which project outwards at a predetermined height with respect to the outer circumferential surface of the inner shell 42, so that, on an occasion when the inner shell 42 be mounted with respect to the outer casing 40, the projections 52, which are formed with substantially rectangular shapes in the cross section, fit with holes 54 of the connecting tabs 48a, 48b. Because of this, the outer casing 40 and the inner casing 42 are connected together tightly by the pair of connecting tabs 48a, 48b.
    Furthermore, an annular wall 62, which is of reduced diameter in a radially inward direction with respect to the outer circumferential surface of the inner shell 42, is formed in an upper part of the inner shell 42. A plurality of hooks 64, which protrude outwardly from the top of the same, is arranged on the annular wall 62 and, together with it, a first seal ring 66 consisting of an elastic material is installed on an outer circumferential side of the annular wall 62. The hooks 64 are spaced at equal intervals mutually along the circumferential direction of the inner shell 42, the upper ends of the hooks 64 projecting in radially outward directions. In other words, the upper ends of the hooks 64 are L-shaped in cross-section and protrude radially outwards.
    A baffle 82 (described later), which forms part of the filter unit 24, is retained by the hooks 64, if the filter unit 24 is accommodated within the housing unit 22 including the inner housing 42.
    On the other hand, a drain protrusion 68, which projects in the axial direction (the direction of arrows A and B) in a substantially central portion on the geometric axis, is formed at the bottom of the inner housing 42. A drain hole 70, into which the drain cock 46 is inserted, is formed inside the drain boss 68.
    Furthermore, on an occasion when the inner shell 42 is mounted with respect to the outer shell 40, after the drain protrusion 68 of the inner shell 42 has been inserted into the protrusion hole 60 of the outer shell 40, the drain cock 46 is inserted (for example, slightly adapted with pressure) in the drain hole 70, and fixed to the interior of the inner housing 42 by a fixing plug 72.
    A second seal ring 74 made of an elastic material is mounted through an annular groove on an outer circumferential surface of the drain cock 46, so that, by inserting the second seal ring 74 into the drain hole 70, and at confining it against the inner circumferential surface of the drain hole 70, a leakage of pressure fluid between the drain cock 46 and the drain hole 70 is prevented.
    The release button 44 consists of a block that is L-shaped in cross-section, which is installed in the button hole 50, so that a projection region of the same is positioned on an external side of the outer shell 40 and a lower side of the release button 44 (in the direction of arrow B). Release button 44 is arranged to move in up and down directions (the directions of arrows A and B) along button hole 50, with a spring 76 being interposed between release button 44 and an end surface bottom of the button hole 50. Thus, the release button 44 is normally in a state of being oriented upward in the outer housing 40 (in the direction of arrow A).
    Additionally, if the housing unit 22 is installed with respect to the installation hole 36 of the first body 20, the upper end of the release button 44 will be inserted into a recess 78 (see figure 8A) that is formed in the installation hole 36 of the first body 20. Due to this, a displacement in a rotational direction of the housing unit 22 with respect to the first body 20 is regulated.
    In other words, the release button 44 functions as a stop member for regulating the rotary displacement of the housing unit 22, in a state in which the housing unit 22 is connected with respect to the first body 20.
    As shown in figures 2 to 5 and 7, the filter unit 24 includes a cylindrical shaped filter element 80, the deflector 82 that holds the filter element 80, and a baffle 84 that is installed at one end of the deflector 82. The filter element 80 is formed like a cylinder in which fibers, for example, of polypropylene, polyethylene or the like, are wound to a predetermined thickness in the radial direction.
    The baffle 82 is equipped with a disc-shaped main body 86, and a retaining member 88 formed in a lower part of the main body 86, and which is capable of holding the baffle 84. A through hole 90 penetrates through the substantially central part of the main body 86, and multiple fins 91 are formed on the outer circumferential side of the through hole 90. The fins 91 are separated at equal intervals along the circumferential direction of the baffle 82, and are formed to be inclined at a predetermined angle with respect to the axial direction of the deflector 82.
    In addition, a third seal ring 92 made of an elastic material is mounted on an external circumferential side of the through hole 90 in the main body 86. The third seal ring 92 is confined against an internal circumferential surface of the second communication passage 32, under a condition in which the filter unit 24 is installed in the first body 20 in conjunction with the housing unit 22. Due to this, a leakage of pressure fluid between the filter unit 24 and the second communication passage 32 is prevented.
    In addition, plural guide walls (for example, four) 94 are formed in the main body 86, which project downwards (in the direction of arrow B) in a portion of the outer edge that defines the outer circumferential side of the fins 91. The guide walls 94 are separated at equal intervals mutually along the circumferential direction of the main body 86, and are separated at a predetermined interval in the radial direction with respect to the outer edge portion. In addition, the lower ends of the guide walls 94 are L-shaped in cross section, and are folded in a radial inward direction.
    Additionally, if the filter unit 24 is mounted with respect to the housing unit 22, the hooks 64 of the inner housing 42 will be inserted into the inner circumferential sides of the guide walls 94, whereby the lower ends of the guide walls 94 and the upper ends of the hooks 64 overlap each other in the radial direction (see figure 4). Because of this, the displacement in the axial direction (the directions of arrows A and B) of the inner housing 42 and the filter unit 24 including the baffle 82 is regulated. Consequently, the filter unit 24 is connected in a state of being accommodated within the housing unit 22.
    On the other hand, a filter groove 96, in which the upper end of the filter element 80 is inserted is formed in an annular shape on a lower surface of the main body 86. The retaining member 88 is formed in a cylindrical shape and is connected with respect to the main body 86, together with being arranged at a predetermined interval from the main body 86 in the axial direction (in the direction of the arrow B). In addition, a pair of pins 98 protrudes from an outer circumferential side into the retaining member 88, and by inserting pins 98 into the slots 100 of the baffle 84 described later, the baffle 84 is connected with respect to the retaining member 88. In addition, the cylindrical shaped filter element 80 is inserted on an outer circumferential side of the retaining member 88. The baffle 84 includes a disk-shaped base 102, a connector 104 formed in an upper portion of the base 102 and connected to the retaining member 88 of the deflector 82, and a jacket 106 formed in a lower portion of the base 102. The base 102 is formed in a substantially flat shape and a lower end surface of the filter 80 adheres against and is retained by the upper surface of the base 102. The connector 104 is formed with a conical shape in the cross section, gradually tapering in an upward direction. The pair of grooves 100 extends in a circumferential direction along a wall surface of the connector 104.
    In addition, under a condition in which the retaining member 88 of the baffle 82 is inserted through the filter element 80, after the retaining member 88 has been inserted into the connector 104 and the pins 98 have been inserted into the slots 100 respectively , the retaining member 88 and the baffle 84 are rotated circumferentially by a predetermined angle in opposite directions from each other. As a consequence, pins 98 are moved to the ends of the grooves 100 and become engaged with them. As a result, a relative displacement in the axial direction (the directions of arrows A and B) between the baffle 82 and the baffle 84 is regulated, and the baffle 84 is connected with respect to the retaining member 88 under a state in which filter element 80 is retained between baffle 82 and baffle 84.
    As shown in figures 1 and 2, regulator 14 comprises a second body 108, a handle 110 rotatably arranged in a lower part of the second body 108, and an adjustment mechanism (not shown), which is capable of adjusting the pressure fluid by operating the handle 110. A pair of ports (not shown) for supplying and discharging a pressure fluid is formed laterally, that is, on the respective sides, of the second body 108. One of the ports is connected to and communicates with the second port 28 of the filter 12 to which a pressure fluid from the filter 12 is supplied, and the other of the ports is connected to and communicates with a third port 122 (described later) of the lubricant 16 through which the pressure fluid is discharged.
    In addition, the pairs of interlocking projections 112a, 112b are arranged on lateral surfaces of the second body 108, in an opposite opposite relationship on the outer edges of end surfaces on which the pair of doors is provided. In a state in which the locking projections 112a of the end surface that is connected to the second port 28 of the filter 12 confine against the locking projections 34b of the adjacent filter 12, the locking projections 34b, 112a are connected together mutually by installation of the connector 18a, in order to cover the external sides of the plug projections 34b, 112a. At this time, the second port 28 of the filter 12 and one of the ports of the regulator 14 are connected in a communication state. Regulator 14 is equipped with the pressure adjustment mechanism inside it. The pressure adjustment mechanism is operated by rotating the handle 110, so that after the pressure of the pressure fluid supplied from one port has been adjusted to a desired pressure, the pressure fluid is discharged from the other port. and supplied for lubricant 16. Lubricant 16 is used for the purpose of causing the lubricating oil to be dripped into the pressure fluid, and which, by using the pressure fluid flow, supplies the lubricating oil to sliding portions on other fluid pressure devices. As shown in figures 1, 2, 9 and 10, lubricant 16 includes a third body 114, a housing unit 116 connected to a lower part of the third body 114, a drip member 118 which is inserted into the third body 114 and a support 120 for fixing the drip member 118 with respect to the third body 114.
    Third and fourth ports 122, 124 for supplying and discharging the pressure fluid are disposed laterally, that is, on the respective sides, of the third body 114. The third port 122 and the fourth port 124 communicate with each other through a third communication passage 126. The third port 122 is connected to another port on regulator 14, which is disposed adjacent to it, and the fourth port 124 is connected to a pipe not shown.
    In addition, the pairs of interlocking projections 128a, 128b, which are mutually opposite each other on the outer edges of end surfaces on which the third and fourth doors 122, 124 are provided, are arranged on lateral surfaces of the third body 114. Under a condition in which the plug projections 128a on the end surface of the lubricant 16 facing the regulator 14 confine against the plug projections 112b of the regulator 14, the plug projections 112b, 128a are connected together by installing the connector 18b so as to cover the outer sides of the socket projections 112b, 128a. At this time, the third port 122 of lubricant 16 is connected in a state of communication with the other port on regulator 14.
    Furthermore, an installation hole 130 into which the housing unit 116 is inserted opens in a lower part of the third body 114. As shown in figure 9, plural support members 132 that project radially inward are formed on a surface inner circumferential of the installation hole 130. The projections 58 of an inner housing (second housing portion) 138 and retaining walls 56 of the outer housing (second housing portion) 136 fit with the support members 132. The housing unit 116 includes inner casing 138 and outer casing 136. Support members 132 are arranged to be separated at equal intervals from each other along the circumferential direction of installation hole 130.
    In addition, a branch passage 134 that extends towards the side of the third port 122 (in the direction of arrow A) is formed in the installation hole 130. A portion of the pressure fluid supplied to the third port 122 is supplied, via the branch passage 134 into the housing unit 116 which is mounted in the installation hole 130.
    The housing unit 116 includes an outer shell 136 formed as a cylinder with a bottom, the inner shell 138 inserted through the interior of the outer shell 136, and a release button 140 that is movable with respect to the outer shell 136. The inner shell 138 it is accommodated within the outer shell 136, so as not to be exposed to the outer shell 136. A construction of the shell unit 116 is approximately the same as that of the shell unit 22 of the filter 12 described above. Thus, the same reference characters are applied to the same constituent elements of it, and detailed descriptions of these features are omitted.
    The outer shell 136 is formed with a substantially constant diameter and a predetermined length in the axial direction from the light-permeable transparent resin material (acrylic, polycarbonate, etc.). A bottom portion of the outer shell 136 is formed in a hemispherical shape, and the upper end of the outer shell 136 opens upwards. A pair of connecting tabs 48a, 48b projecting upward (in the direction of arrow A) in the axial direction is formed in an upper portion of the outer housing 136, and a button hole 50 in which the release button 140 is described further later it is assembled and formed in a position located between one of the connecting tabs 48a and the other of the connecting tabs 48b.
    Furthermore, a plurality of retaining walls 56, which gradually expand in diameter in a radially outward direction, is formed in an upper portion of the outer shell 136. The retaining walls 56 are mutually separated at substantially equal intervals along from the circumferential direction of the outer shell 136, so that the projections 58 are able to be retained by the retaining walls 56, if the inner shell 138 is accommodated within the outer shell 136.
    The inner shell 138, similar to the outer shell 136, is formed with a substantially constant diameter, for example, from a transparent resin material permeable to light (polycarbonate or similar), and extends for a predetermined length in the axial direction. A bottom portion of the inner shell 138 is formed in a hemispherical shape, and the upper end of it opens upwards. The interior of the inner housing 138 is filled with a lubricating oil through an oil supply plug 142 (see figures 1 and 2), which is provided in the third body 114.
    In addition, a plurality of projections 58, which project radially from their outer circumferential surface, are formed in an upper portion of the inner envelope 138, the projections 58 being arranged at substantially equal intervals mutually along the circumferential direction of the envelope inner 138. Angled surfaces of the projections 58 enter into confinement against and are retained respectively by the retaining walls 56, if the inner shell 138 is accommodated inside the outer shell 136.
    In addition, between two adjacent projections 58, a pair of projections 52 is provided, which project outward at a predetermined height with respect to the outer circumferential surface of the inner shell 138. If the inner shell 138 is mounted with respect to the outer shell 136 , the projections 52, which are formed with substantially rectangular shapes in the cross section, will fit into the holes 54 of the connecting tabs 48a, 48b. Because of this, the outer shell 136 and the inner shell 138 are tightly connected together.
    Furthermore, an annular wall 62, which is of reduced diameter in a radially inward direction with respect to the outer circumferential surface of the inner shell 138, is formed in an upper part of the inner shell 138. A plurality of hooks 64, which protrude outwardly from the top of them, is arranged on the annular wall 62, and, together with it, a first sealing ring 66 made of an elastic material is installed on an outer circumferential side of the annular wall 62 The release button 140 is constituted from a block that has an L-shaped cross section, which is installed in the button hole 50, so that a projection region of the same is positioned on an external side of the housing external 136 and on a lower side of the release button 140 (in the direction of arrow B). The release button 140 is arranged to move in the up and down directions (the directions of arrows A and B) along the button hole 50, with a spring 76 being interposed between the release button 140 and an end surface bottom of the button hole 50. Thus, the release button 140 is normally in a state of being oriented upward in the outer housing 136 (in the direction of arrow A).
    Additionally, if the housing unit 116 is installed with respect to the installation hole 130 of the third body 114, the upper end of the release button 140 will be inserted into a recess 78 that is formed in the installation hole 130 of the third body 114. Due to this, a displacement in a direction of rotation of the housing unit 116 with respect to the third body 114 is regulated. In other words, the release button 140 functions as a stop member for regulating the rotation displacement of the housing unit 116, in a state in which the housing unit 116 is connected with respect to the third body 114.
    As shown in figure 9, drip member 118 comprises an inner member 144 that is inserted into the third body 114, and a drip plug 146 that is provided in an upper portion of the inner member 144. The inner member 144 is inserted in order to penetrate through the third communication passage 126.
    The inner member 144 includes a fourth communication passage 148 which penetrates thereat horizontally. The fourth communication passage 148 is arranged in a straight line together with the third communication passage 126. More specifically, a pressure fluid that is supplied to the third port 122 passes through the third and fourth communication passages 126, 148 and flows to the fourth port 124.
    In addition, a shock absorber 150 made of an elastic material and which is disposed in a vertical manner perpendicular to the extension direction of the fourth communication passage 148 is disposed in the fourth communication passage 148. The shock absorber 150 is arranged so that it can be tilted by a predetermined angle toward the side of the fourth port 124 corresponding to the amount of pressure fluid flow that is supplied from the third port 122.
    A reservoir 152 through which a lubricating oil is supplied from the inner shell 138 is formed above the fourth communication passage 148 on the inner member 144. The reservoir 152 communicates with an oil passage 154 that extends downwards, and a lubricating oil is supplied through oil passage 154. A drip opening 156 that communicates with the fourth communication passage 148 opens downwards in a substantially central portion of reservoir 152. Oil passage 154 is perpendicular with respect to the fourth communication passage 148, it extends through there while it is separated from the fourth communication passage 148, and communicates with an oil supply port 158 which is formed on the support 120.
    Support 120 is installed in a lower portion of the inner member 144 which constitutes the drip member 118, and retains a portion of the buffer 150 interposed between the inner member 144 and the support 120. The support 120 comprises the oil supply port 158 , which communicates with the oil passage 154. The oil supply port 158 projects downwards (in the direction of arrow B), and is arranged inside the inner housing 138. An oil guide tube 160 is connected to the oil supply port 158.
    The oil guide tube 160 has a predetermined length along the axial direction (the directions of arrows A and B), and in a state of being connected to the oil supply port 158, it extends into the vicinity of a part bottom of the inner casing 138. In addition, a removal filter 162 for removing residue or the like that may be contained in the lubricating oil is disposed at a lower end of the oil guide tube 160.
    In addition, a lubricating oil that fills the inner casing 138, after passing through the oil guide tube 160 and flowing towards the side of the support 120, passes through the oil passage 154 and is supplied to the reservoir 152. The lubricating oil passes through the drip opening 156 from the reservoir 152 and is dripped into the fourth communication passage 148. As a result, a predetermined amount of lubricating oil is mixed with the pressure fluid flowing through the fourth communication passage. communication 148. A check valve 164 for preventing a reverse flow of the lubricating oil towards one side of the inner shell 138 from the oil passage 154 is arranged in the oil supply port 158.
    The fluid pressure unit 10, to which an enclosure structure according to the first embodiment of the present invention is applied, is constructed basically as described above. Then, explanations must be given with reference to the assembly of the filter 12 and the lubricant 16. First, the assembly of the filter 12 will be explained with reference to figures 4 to 6. In the following explanations, it is assumed that the filter unit 24 is in a pre-assembled condition, that is, where the filter element 80, the baffle 82 and the baffle 84 are already assembled in place (see figure 5).
    First, the housing unit 22 is assembled. In this case, in the condition shown in figure 6, the inner shell 42 is inserted from above into the open outer shell 40, and the bottom portions thereof are positioned in proximity, whereby the drain boss 68 is inserted in the projection hole 60. At the same time, the connecting tabs 48a, 48b of the outer shell 40 are made to face the projections 52 of the inner shell 42, and the projections 52 are inserted into the holes 54. Consequently, the holes 54 of the connecting tabs 48a, 48b and projections 52 become engaged, whereby the outer shell 40 and the inner shell 42 are connected together mutually, so that the inner shell 42 is accommodated within the outer shell 40.
    On this occasion, the outer shell 40 and the inner shell 42 are connected so that a relative displacement in both axial (the directions of arrows A and B) and circumferential is regulated, the inner shell 42 is covered by the outer shell 40, and the inner shell 42 is accommodated so as not to be exposed to the outside of the outer shell 40.
    In addition, the retaining walls 56 of the outer shell 40 are confined respectively to the lower end surfaces in the projections 58 of the inner shell 42 (see figure 4).
    In addition, after the drain cock 46 has been inserted from the bottom with respect to the protrusion hole 60 of the outer casing 40, the drain cock 46 is attached by the clamping plug 72, and the assembly of the housing unit 22 is completed by installing the first seal ring 66 on the outer circumferential side of the annular wall 62 of the inner shell 42 (see figures 3 and 5).
    Then, starting from the condition shown in figure 5, the filter unit 24 is inserted into the housing unit 22, so that the main body 86 of the baffle 82 is positioned upward, and the hooks 64 of the inner housing 42 are arranged in positions between the guide walls 94 of the main body 86. In addition, by rotating the filter unit 24 by a predetermined angle about its geometric axis with respect to the housing unit 22, the hooks 64 are made to confront the guide walls 94 and are moved to positions on the inner circumferential sides of the guide walls 94. More specifically, the plural hooks 64 are positioned in a state of being covered respectively by the guide walls 94.
    Consequently, the upper ends of the hooks 64 are positioned in a state of overlap in a radial direction with the lower ends of the guide walls 94, whereby a displacement in the axial direction (the directions of arrows A and B) between the housing internal 42 and the filter unit 24 including the baffle 82 is regulated. As a result, the filter unit 24 is connected together mutually with the housing unit 22, with the filter unit 24 being accommodated within the housing unit 22.
    Finally, with the opening opening oriented upwards, the housing unit 22 into which the filter unit 24 is mounted is inserted into the installation hole 36 of the first body 20, and the housing unit 22 is rotated by an angle predetermined about its axis with respect to the first body 20. As a result, the projections 58 and the retaining walls 56 are superimposed in the axial direction (the directions of arrows A and B) with the support members 38, and the projections 58 and the retaining walls 56 are made to fit with the support members 38. At this time, the retaining walls 56, which are confined against the lower portions of the projections 58, also enter into confinement against the support members 38.
    At the same time, as shown in figure 8A, the release button 44 is moved upwards (in the direction of arrow A) by the elastic force of the spring 76 and is inserted into the recess 78 of the installation hole 36. Because of this, in a state of being inserted into the installation hole 36 of the first body 20, the housing unit 22 is retained by the support members 38 and is prevented from jumping outwards (in the direction of arrow B) together with a movement of the housing unit 22 in one direction of rotation (ie, in the direction of arrow C in figure 3) being regulated by release button 44. More specifically, due to the fact that housing unit 22 rotates with respect to the release button 44, the state of engagement with the support members 38 cannot be released.
    Because of this, the housing unit 22 in which the filter unit 24 is accommodated is positioned in a state of being connected to the lower portion of the first body 20, whereby the assembly of the filter 12 is completed (see figure 4 ). At this moment, as shown in figure 4, the first communication passage 30 and the fins 91 of the deflector 82 confront and communicate with each other, and the second communication passage 32 communicates with the through hole 90. Also, the first sealing ring 66 confines itself against the inner circumferential surface of the installation hole 36, and the third sealing ring 92 confines itself against the inner circumferential surface of the second communication passage 32.
    As shown in figure 8B, if the housing unit 22 is to be removed from the first body 20, the release button 44 will be pressed down against the elastic force of the spring 76, whereby the release button 44 becomes detached of the recess 78. Because of this, the condition under which a rotary displacement of the housing unit is prevented becomes released. Thereafter, if the housing unit 22 is rotated by a predetermined angle, after the projections 58 and the retaining walls 56 have been released from engagement with the support members 38, the housing unit 22 will be moved in one direction (in the direction of arrow B), in order to separate from the first body 20.
    Then, an explanation must be given regarding the assembly of the lubricant 16. First, when assembling the housing unit 116, the inner housing 138 is inserted from above into the open outer housing 136, the connecting tabs 48a, 48b of the outer shell 136 are positioned in a confronting relationship with the projections 52 of the inner shell 138, and the projections 52 are inserted into the holes 54.
    Consequently, the holes 54 of the connecting tabs 48a, 48b and the projections 52 become engaged, whereby the outer shell 136 and the inner shell 138 are connected together mutually, so that the inner shell 138 is accommodated in the shell outer 136. In conjunction with this, the inner shell 138 is covered by the outer shell 136, and the inner shell 138 is accommodated there, so as not to be exposed to the interior of the outer shell 136.
    At this time, the outer shell 136 and the inner shell 138 are connected, so that a relative displacement in both axial (the directions of arrows A and B) and circumferential is regulated. Furthermore, the lower surfaces of the projections 58 of the inner shell 138 are confined respectively to the retaining walls 56 of the outer shell 136.
    When mounting the first seal ring 6 6 on the outer circumferential side of the annular wall 62 in the inner housing 138, the assembly of the housing unit 116 is completed.
    Then, with the opening oriented upwards, the housing unit 116 described above is inserted into the installation hole 130 of the third body 114, and the housing unit 116 is rotated by a predetermined angle around its geometric axis with with respect to the third body 114. As a result, the projections 58 and the retaining walls 56 are made to fit with the support members 132 provided in the installation hole 130. Still, at the same time, the release button 140 is moved upwards (in the direction of arrow A) by the elastic force of spring 76, and becomes inserted into recess 78 of installation hole 130. As a result, under a condition in which housing unit 116 is inserted into installation hole 130 of the third body 114, housing unit 116 is held by support members 132, and is held in a state whereby 116 is prevented from jumping out and down (in the direction of arrow B) in conjunction with a movement of the same in ad direction of rotation which is regulated by the release button 140.
    More specifically, due to the fact that the rotation of the housing unit 116 with respect to the third body 114 is regulated by the release button 140, the state of engagement with the support members 132 is not released.
    Because of this, under a condition in which the oil guide tube 160 is inserted into the inner housing 138, the housing unit 116 is connected to the lower portion of the third body 114, and the assembly of lubricant 16 is completed.
    If the housing unit 116 is to be removed from the third body 114, the release button 140 will be pressed down against the spring spring 76, whereby the release button 140 will become detached from the recess 78 Thus, the condition that a rotary displacement of the housing unit 116 is prevented becomes released. Thereafter, if the housing unit 116 is rotated by a predetermined angle, after the projections 58 and the retaining walls 56 have been released from engagement with the support members 132, the housing unit 116 will be moved in one direction (direction axial), in order to separate from the third body 114.
    Then, explanations must be given concerning the operations and the beneficial effects of the fluid pressure unit 10, including the filter 12 and the lubricant 16, which are assembled together in the previous manner. It must be assumed that tubes not shown are connected beforehand to the first port 26 of the filter 12 and the fourth port 124 of the lubricant 16.
    First, a pressure fluid is supplied through a tube from a non-illustrated pressure fluid supply source to the first port 26 of the filter 12. After the pressure fluid has flowed into the first communication passage 30 from the first port 26 of the filter 12, the pressure fluid is guided into the inner housing 42 by the passage through and between the fins 91 of the baffle 82. At this moment, through the passage through the plural fins 91, the fluid pressure is guided into the inner shell 42, while rotating in a circumferential direction around the geometric axis of the inner shell 42. Because of this, because of the centrifugal force caused by this rotation, the moisture and the like contained in the fluid pressure are radially separated outward and move towards the inner circumferential side of the inner shell 42.
    In addition, this separate moisture and the like, after having been moved downwards (in the direction of arrow B) along the inner circumferential wall of the inner shell 42, are collected in the bottom portion of the inner shell 42 and are drained from there. By opening the drain cock 46, moisture and the like to be drained can be discharged to the outside of the inner shell 42.
    On the other hand, as a result of the pressure fluid from which moisture and the like have been separated by passing from the outer circumferential sides of the filter element 80 and towards the inner circumferential side, dust, particulates and the like contained in the pressure fluid are removed. Thereafter, the pressure fluid, after rising into the filter element 80 and having been guided through the through hole 90 to the second communication passage 32, is discharged as a clean pressure fluid from the second port 28.
    In the filter 12, due to the fact that the outer shell 40 and the inner shell 42 that make up the shell unit 22 are made from a transparent resin material, which is permeable to light, the amount of moisture to be drained, which is collected inside the filter 12, and the dust and the like adhered to the filter element 80 can be easily confirmed from the outside of the filter 12.
    The pressure fluid, from which moisture, dust and the like has been removed by the filter 12, is supplied from the second port 28 of the filter 12 to the port (not shown) of the regulator 14, which is integrally connected with the filter 12 through connector 18a. After having been set to a preset pressure value by the handle 110, the adjusted pressure fluid is supplied through the other port of the same to the lubricant 16, which is connected integrally with the regulator 14 by the connector 18b.
    Simultaneously with the adjusted pressure fluid being supplied from the third port 122 of lubricant 16 and flowing to the side of the fourth port 124 through the third and fourth communication passages 126, 148, a portion of the pressure fluid passes through the branch 134 that communicates with the third port 122 and is supplied to the interior of the inner shell 138. At this moment, through the damper 150, compared to the pressure fluid flowing directly to the fourth port 124 from the third port 122 , the pressure of the pressure fluid, which passes through the branch passage 134 and is guided into the inner housing 138, is increased.
    Because of this, the lubricating oil is pressed by the pressure fluid supplied into the inner casing 138, and, after passing through the oil guide tube 160 and flowing to the support side 120 (in the direction of arrow A) , the lubricating oil passes through the oil passage 154 and is supplied to the reservoir 152. The oil then passes through the drip opening 156 and is dripped into the fourth communication passage 148. Consequently, if the pressure fluid passes through from the inside of the fourth communication passage 148, a predetermined amount of lubricating oil will be mixed with the pressure fluid, and after that, the pressure fluid will be supplied from the fourth port 124 and through a tube to the other devices fluid pressure for which lubrication is required.
    Due to the fact that the outer shell 136 and the inner shell 138 that make up the shell unit 116 are made from a transparent resin material, which is permeable to light, the amount of lubricating oil filled inside the lubricant 16 can be easily confirmed from the outside.
    In the preceding manner, according to the first embodiment, in the filter 12 and the lubricant 16, the retaining walls 56 are provided, which project in a radial direction outwardly on the outer circumferential sides of the outer casings 40, 136 that constitute the enclosure units 22, 116 and, together with this, the projections 58 which are confined against the upper portions of the retaining walls 56 are provided on the outer circumferential surfaces of the inner enclosures 42, 148. Additionally, by inserting the enclosure units 22 , 116 in the installation holes 36, 130 of the first and third bodies 20, 114 and by turning the housing units 22, 116 through a predetermined angle, and by fitting with the plural support members 38, which are arranged at the along the inner wall surfaces of the installation holes 36, 130, a displacement of the housing units 22, 116 in axial directions (the directions of arrows A and B) with respect to the pr first and third bodies 20, 114 are regulated, and housing units 22, 116 can be connected easily and reliably with respect to the first and third bodies 20, 114.
    In addition, as a result of fitting the release buttons 44, 140 provided in the outer casings 40, 136 in the recesses 78 of the first and third bodies 20, 114, due to the fact that the rotating displacement of the housing units 22, 116 with respect to first and third bodies 20, 114 to be regulated, an incorrect rotation of the housing units 22, 116 and an unintended release of the locking state of the retaining walls 56 and the projections 58 with respect to the support members 38 are avoided. As a result of fitting the release buttons 44, 140 into the recesses 78, the connection status of the housing units 22, 116 with respect to the first and third bodies 20, 114 can be reliably maintained.
    Furthermore, in the housing unit 22 that constitutes the filter 12, the inner shell 42 to which the pressure fluid is guided, and the outer shell 40, which is disposed on the outer side of the inner shell 42, are formed respectively. from a transparent light-permeable material. As a result, the amount of moisture to be drained, which is collected inside the inner housing 42, and the amount of dust and the like adhering to the filter element 80 can be reliably and visually confirmed from the outside of the unit. wrapper 22.
    In greater detail, even when viewed from any arbitrary position along the circumferential direction of the housing unit 22, the interior of the housing unit 22 can be reliably confirmed. Therefore, for example, even in cases where the positions that allow visibility are limited due to the installation environment of the fluid pressure unit 10 including the filter 12, the amount of moisture to be drained or the like inside the housing unit 22 can be visually confirmed reliably. Because of this, maintenance operations, such as the replacement of filter element 80 or the discharge of moisture by the operation of drain cock 46, can be carried out in an appropriate timing.
    More specifically, by allowing observation and confirmation of the adhered dust condition or the like, clogging of the filter element 80 can be avoided, and the collection of moisture to be drained into the inner shell 42 in addition to a predetermined amount can also be avoided. be avoided.
    Furthermore, in the housing unit 116 which constitutes the lubricant 16, the inner housing 138 into which a lubricating oil is filled, and the outer housing 136 disposed on the outer side of the inner housing 138 are respectively formed from a permeable transparent material. the light. Because of this, the filled amount of lubricating oil inside the inner shell 138 can be reliably and easily confirmed from the outside of the shell unit 116.
    In greater detail, due to the fact that the interior of the housing unit 116 can be reliably confirmed visually, when viewed from any arbitrary position along the circumferential direction of the housing unit 116, for example, even in cases where the positions that can be seen are limited due to the installation environment of the fluid pressure unit 10, including lubricant 16, the filled amount of lubricating oil inside the housing unit 116 can be reliably confirmed visually. As a consequence, maintenance operations, such as replenishing lubrication or the like, can be performed in a suitable timing.
    In addition, with the housing unit 22 constituting the filter 12 and the housing unit 116 constituting the lubricant 16, a structure is provided, in which the outer shells 40, 136 are arranged to cover the outer circumferential sides of the inner shells 42, 138, so that the inner casings 42, 138 are not exposed to the outside. Because of this, in an installation environment of the fluid pressure unit 10, in which gases, solvents, etc. are in suspension or dispersed in the atmosphere, these gases, solvents and the like can be prevented from coming into direct contact and adhering with respect to the inner shells 42, 138. As a result, the durability of the inner shells 42, 138 can be improved.
    The housing units 22, 116 that make up the filter 12 and the lubricant 16 are not limited to being formed from transparent resin materials permeable to light. For example, housing units 22, 116 can be formed from pressure-resistant glass, or instead of transparent materials, they can be formed from semitransparent materials. More specifically, the outer shells 40, 136 and the inner shells 42, 138 constituting the sheath units 22, 116 can be made from any materials that are capable of withstanding the pressure applied to them, and which allow the interior visually confirmed from the outside.
    Then, a fluid pressure unit 200, including fluid pressure devices to which a housing structure according to a second embodiment is applied, is shown in figures 11 to 13. The constituent elements, which are the same as those of the fluid pressure unit 10 according to the first embodiment mentioned above, are designated by the same reference numbers, and detailed explanations of these elements are omitted.
    In the fluid pressure unit 200 according to the second embodiment, the fluid pressure devices therein differ from the fluid pressure devices of the first embodiment in that a filter regulator 202 is provided, in which a filter for removing dust, particulates and the like contained in the pressure fluid, and a regulator for reducing the pressure of the pressure fluid are arranged together integrally.
    As shown in figures 11 to 13, the fluid pressure unit 200 consists of filter regulator 202, a lubricant 16 connected to filter regulator 202 for mixing a lubricating oil with respect to the pressure fluid, and a connector 18a, by means of which filter regulator 202 and lubricant 16 are mutually connected. The aforementioned filter regulator 202 and lubricant 16 function as fluid pressure devices to which a pressure fluid is supplied to the inner portions thereof.
    Concerning lubricant 16, since its structure is the same as that of lubricant 16 in the fluid pressure unit 10 according to the first embodiment described above, detailed explanations of it are omitted. The filter regulator 202 includes a body 204, a housing unit (housing) 206 connected to a lower part of the body 204, a filter unit 208 installed inside the housing unit 206, a hood 210 connected to an upper part of the housing. body 204, an adjustment mechanism 212 disposed within the hood 210, and a handle 214 rotatably arranged in an upper portion of the hood 210. The body 204 comprises fifth and sixth ports 216, 218, through which the pressure fluid a fifth communication passage 220 in communication with the fifth port 216 is supplied and discharged, and a sixth communication passage 222 in communication with the sixth port 218.
    The housing unit 206 includes an outer shell (first shell portion) 224 formed as a bottom cylinder, and an inner shell (second shell portion) 226 that is inserted into the outer shell 224, a release button 228 arranged for displacement with respect to the outer shell 224, and a drain cock 230 disposed in bottom parts of the outer shell 224 and the inner shell 226.
    The structure of the housing unit 206 and filter unit 208 is the same as in filter 12 according to the first embodiment described above, and therefore a detailed explanation of these features is omitted. The cap 210 is formed in a cylindrical shape and is connected to an upper part of the body 204, inserting a diaphragm 232 that constitutes the adjustment mechanism 212. In addition, the handle 214 is rotatably arranged through a rotating axis 234 in a upper portion of the hood 210. A spring 240 is interposed through a spring support 238 between the rotary shaft 234 and a disk member 236, which are parts of the adjustment mechanism 212.
    In addition, by rotating the handle 214, the rotary axis 234 is rotated integrally with it, accompanied by the spring support 238, which is threaded with the rotary axis 234, being moved along the axial direction (the directions of the arrows A and B), whereby spring 240 is compressed, for example, through spring support 238, and a pressure force from spring 240 is applied to diaphragm 232. Adjustment mechanism 212 includes diaphragm 232 in the form of a thin membrane that has elasticity, and interspersed between the body 204 and the deformation limiting reinforcement 2210, a retaining member 242 that retains a central portion of the diaphragm 232, the spring support 238, which is arranged for above the retaining member 242 while the diaphragm 232 is disposed between the retaining member 242 and the spring support 238, and an axis 244 provided in a lower portion of the retaining member 242.
    A diaphragm chamber 246 is formed in a lower portion of diaphragm 232 between diaphragm 232 and body 204. Diaphragm chamber 246 communicates through a pilot passage 248 with the sixth communication passage 222.
    Still, at a lower end of the shaft 244, a shaft support 250, which is disposed between the main body 86 of the deflector 82 and the retaining member 88, abuts there, and a return spring 252 is interposed between the shaft support 250 and retaining member 88. By means of an elastic force of return spring 252, shaft 244 is forced upwards (in the direction of arrow A) through shaft support 250, while the upper end axis 244 abuts against a central portion of the retaining member 242.
    Next, an explanation must be made regarding the operations and the beneficial effects of the fluid pressure unit 200 according to the second embodiment. It is assumed that a desired pressure has been regulated beforehand by operating the handle 214.
    First, the pressure fluid is supplied from a non-illustrated pressure fluid supply source to the fifth port 216 of the body 204. The pressure fluid flows into the inner shell 226 as it passes through the fifth passage of communication 220, and is guided downward while rotating through the passage between the fins 91 of the baffle 82. On this occasion, the unit and the like contained in the pressure fluid are properly separated due to a centrifugal force caused by that rotation, and the pressure fluid moves towards the inner circumferential side of the inner shell 226.
    In addition, the separate unit, after moving downwards along the inner circumferential surface of the inner shell 226, collects as the moisture to be drained at the bottom of the inner shell 226. Through the opening of the drain cock 230, the moisture to be drained drained can be discharged outside the inner housing 226.
    On the other hand, the pressure fluid, from which moisture and the like have been separated, passes to the inner circumferential side from the outer circumferential side of filter element 80, where dust, particulates and the like contained in the pressure fluid properly removed and, after that, the pressure fluid rises within the filter element 80 and flows to the sixth communication passage 222. Because the outer shell 224 and the inner shell 226 that make up the shell unit 206 are formed from a transparent resin material permeable to light, the moisture to be drained, which was collected inside it, as well as dust and the like can be seen visually from the outside.
    Yet, at the same time, due to a difference between a pressure force applied to diaphragm 232 from spring 240 and pressure acting on diaphragm 232 from pressure fluid within diaphragm chamber 246, axis 244 is displaced in the axial direction (the directions of arrows A and B), whereby the pressure fluid is adjusted to a desired pressure. In addition, after moisture and dust, etc. have been removed from there, and after being set to a predetermined pressure, the pressure fluid is supplied through the sixth port 218 to the adjacent lubricant 16. The pressure fluid supplied to the lubricant 16, after a predetermined amount of lubricating oil has dripped and mixed with it inside lubricant 16, it is supplied to other fluid pressure devices for which lubrication is required.
    In the preceding manner, according to the second embodiment, in the filter regulator 202, the retaining walls 56 are provided, which project outwardly on the outer circumferential surface of the outer housing 224 of the housing unit 206, and together thus, the projections 58, which are confined against upper portions of the retaining walls 56, are provided on the outer circumferential surface of the inner shell 226. In addition, by inserting the shell unit 206 into an installation hole 36 of the body 204 , and by rotating the housing unit 206 through a predetermined angle, so as to cause a fit with the plural support members 38 arranged along the inner circumferential surface of the installation hole 36, a displacement in the axial direction (the directions of the arrows A and B) of the housing unit 206 with respect to the body 204 is regulated, and the housing unit 206 can be connected easily and reliably with r respect to the body 204.
    Also, by fitting the release button 228 disposed in the outer housing 224 with the recess 78 of the body 204, due to the fact that the rotary displacement of the housing unit 206 with respect to the body 204 is regulated, a wrong rotation of the housing unit 206 and an unintended release of the locking state of the retaining walls 56 and projections 58 with respect to the support members 38 is prevented. As a result, by fitting the release button 228 into the recess 78, the connection state of the housing unit 206 with respect to body 204 can be reliably maintained.
    Furthermore, in the housing unit 206, the inner shell 226 into which the pressure fluid is guided, and the outer shell 224 disposed on the outer side of the inner shell 226 are formed respectively from a transparent resin material permeable to light. Because of this, the amount of moisture to be drained, which is collected inside the inner shell 226, and the amount of dust or the like that adheres to the filter element 80 can be confirmed reliably and easily visually from outside the housing unit 206.
    More specifically, due to the fact that the interior of the housing unit 206 can be reliably confirmed when viewed from any arbitrary position along the circumferential direction of the housing unit 206, for example, even in the case where the positions in that the housing unit 206 can be seen are limited due to the installation environment of the fluid pressure unit 200 including filter regulator 022, the amount of moisture or the like to be drained inside the housing unit 206 can be visually confirmed. Because of this, maintenance operations, such as replacing filter element 80 or draining moisture through drain cock 230, can be performed in an appropriate timing.
    In addition, the outer shell 224 is arranged to cover the outer circumferential side of the inner shell 226, and the shell unit 206 is configured so that the inner shell 226 is not exposed to the outside. Therefore, in an installation environment of the fluid pressure unit 200 in which gases, solvents, etc. they are suspended or dispersed in the atmosphere, these gases, solvents and the like can be prevented from contacting and adhering with respect to the inner shell 226. As a result, the durability of the inner shell 226 can be improved.
    The enclosure structure according to the present invention is not limited to the modalities described above, and it is obvious that several additional or modified structures could be adopted there, without deviating from the essence of the invention, as set out in the appended 15 claims.
    权利要求:
    Claims (9)
    [0001]
    1. Housing structure for a fluid pressure device that has a housing into which a pressure fluid is introduced into the fluid pressure device, characterized by the fact that it comprises: a body (20, 114, 204 ) which has ports through which the pressure fluid is supplied and discharged; and the housing (22, 116, 206) formed as a cylinder with a bottom, which is connected to an installation hole (36, 130) of the body (20, 114, 204), the interior of the housing (22, 116, 206) in communication with the doors, in which the housing (22, 116, 206) comprises a first housing portion (40, 136, 224) and a second housing portion (42, 138, 226) arranged in an interior of the first casing portion (40, 136, 224), the first casing portion being light permeable around an entire circumference thereof to allow visibility of the second casing portion and the interior of the casing, and the second portion casing being permeable to light around an entire circumference thereof to allow visibility of the interior of the casing, and in which a first fitting member (56, 58), which is arranged on an outer circumferential surface of at least least one of the first housing portion (40, 136, 224) and the second housing portion (42, 138 , 226), engages with a second locking member (38) formed on an internal circumferential surface of the installation hole (36, 130).
    [0002]
    2. Housing structure according to claim 1, characterized in that the first locking member (56, 58) projects in an outwardly radial direction with respect to an outer circumferential surface of the housing (22, 116, 206 ), and the second locking member (38) is formed to project in a radially inward direction with respect to the inner circumferential surface, and where the first locking member (56, 58) and the second locking member (38 ) are fitted by a rotation of the housing (22, 116, 206) with respect to the body (20, 114, 204) inside the installation hole (36, 130).
    [0003]
    3. Housing structure according to claim 2, characterized by the fact that it also comprises a stop member arranged in the housing (22, 116, 206) for the regulation of the relative rotary displacement between the housing (22, 116, 206) and the body (20, 114, 204).
    [0004]
    4. Housing structure according to claim 3, characterized in that the stop member comprises an operating button (44), which is movable in an axial direction of the housing (22, 116, 206), and in that by inserting the operation button (44) in a recess (78) of the body (20, 114, 204), a rotary displacement with respect to the body (20, 114, 204) is regulated.
    [0005]
    5. Housing structure according to claim 1, characterized in that the fluid pressure device comprises a filter (12) that has a filter element (80) accommodated within the housing (22), which is capable of removing dust or the like contained in the pressure fluid.
    [0006]
    6. Housing structure according to claim 1, characterized in that the fluid pressure device comprises a lubricant (16) in which the interior of the housing (116) is filled with a lubricating oil, and which mixes the lubricating oil with the pressure fluid and discharges the pressure fluid mixed with the lubricating oil from the port.
    [0007]
    7. Housing structure according to claim 1, characterized in that the fluid pressure device comprises a filter regulator (202) equipped with a filter element (80) accommodated within the housing (206), and with an adjustment mechanism that is able to adjust a pressure of the pressure fluid in the body (204).
    [0008]
    8. Housing structure according to claim 1, characterized by the fact that the first housing portion (40, 136, 224) and the second housing portion (42, 138, 226) are formed from a material transparent resin.
    [0009]
    9. Housing structure according to claim 8, characterized in that the transparent resin material is an acrylic material or a polycarbonate material.
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    同族专利:
    公开号 | 公开日
    CN103501873A|2014-01-08|
    US9314726B2|2016-04-19|
    RU2013149486A|2015-06-20|
    JP2012232280A|2012-11-29|
    KR20130139361A|2013-12-20|
    DE112011105229T5|2014-02-27|
    TWI438029B|2014-05-21|
    BR112013028884A2|2017-01-31|
    JP5713289B2|2015-05-07|
    RU2598679C2|2016-09-27|
    WO2012153430A1|2012-11-15|
    TW201244800A|2012-11-16|
    CN103501873B|2015-11-25|
    KR20160074010A|2016-06-27|
    US20140124054A1|2014-05-08|
    DE112011105229B4|2018-01-25|
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    法律状态:
    2018-04-10| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-06-18| B06T| Formal requirements before examination|
    2020-04-07| B09A| Decision: intention to grant|
    2020-11-03| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 21/07/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2011104623A|JP5713289B2|2011-05-09|2011-05-09|Case structure of fluid pressure equipment|
    JP2011-104623|2011-05-09|
    PCT/JP2011/067176|WO2012153430A1|2011-05-09|2011-07-21|Case structure for fluid pressure device|
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