• 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:
    IMPULSE SLIDING BEARING. It is a thrust bearing 1 that includes: an upper casing made of synthetic resin 2; a lower casing made of synthetic resin 3 which is superimposed on the upper casing 2 in order to be able to rotate about a geometric axis O in a circumferential direction R with respect to the upper casing 2; a thrust plain bearing part made of synthetic resin 5 disposed in an annular space 4 between the upper shell 2 and the lower shell 3; and a sealing member made of synthetic resin 8 sealing with respect to the other end portions, which communicates with the outside, of a groove 6 on an inner peripheral side and a groove 7 on an outer peripheral side in a radial direction A between the upper housing 2 and the lower housing 3, the groove 6 and the groove 7 communicating respectively with the annular space 4 in their single annular end portions.
    公开号:BR112013000733B1
    申请号:R112013000733-8
    申请日:2011-06-15
    公开日:2021-03-02
    发明作者:Kouichi Morishige；Takashi Horiguchi
    申请人:Oiles Corporation；
    IPC主号:
    专利说明:

    TECHNICAL FIELD
    [001] The present invention relates to a thrust bearing made of synthetic resin and, more particularly, to a thrust bearing that is suitably incorporated as a thrust bearing of a support type suspension (Macpherson type) in a four-wheeled motor vehicle. PREVIOUS TECHNIQUE
    [002] In patent document 1, a sliding bearing made of synthetic resin is proposed which includes a lower housing made of synthetic resin, an upper housing made of synthetic resin superimposed on that lower housing, and a means of sliding bearing made of synthetic resin interposed between the upper and lower shells, the sliding bearing being made of synthetic resin comprised of a resiliently external sealing means disposed on an outer peripheral side between the upper and lower shells and an internal sealing means so resilient disposed on an inner peripheral side between the upper and lower casings. In patent document 2, a sliding bearing made of synthetic resin is proposed which includes a lower housing made of synthetic resin, an upper housing made of synthetic resin superimposed on that lower housing, and a thrust bearing member made of synthetic resin disposed in a space between the upper and lower casings, the sliding bearing being made of synthetic resin comprised of an external sealing means disposed on an external peripheral side in the space between the upper and lower casings and an internal sealing means of labyrinth arranged on an inner peripheral side in the space between the upper and lower sheaths. In patent document 3, a sliding bearing made of synthetic resin is proposed which includes a lower housing made of synthetic resin, an upper housing made of synthetic resin superimposed on that lower housing, and a sliding bearing means made of synthetic resin. interposed between the upper and lower casings, the sliding bearing being made of synthetic resin comprised of a resilient sealing means which is arranged in such a way as to cover an external surface of the lower casing and which seals the external and external annular openings of a space between the upper and lower shells at both annular end portions. In patent document 4, a sliding bearing made of synthetic resin is proposed that includes an upper housing that has a lower annular surface, a lower housing that is superimposed on that upper housing, in order to be able to rotate around a geometric axis of the upper housing and has an upper annular surface, and an annular thrust bearing ring piece disposed in an annular space between the lower annular surface and the upper annular surface, the sliding bearing being comprised of a sealing means arranged in, on at least one side of an outer peripheral side and an inner peripheral side of the annular space. Furthermore, in patent document 5, a sliding bearing made of synthetic resin is proposed which includes an upper housing made of synthetic resin that has a lower annular surface, a lower housing made of synthetic resin that has an upper annular surface , and a thrust bearing piece arranged in an annular groove between the lower annular surface and the upper annular surface.
    [003] EP-A2-1,555,144 discloses a bearing, consisting of two rings with rolling elements between them, a cover in which the first ring is fitted and a seal that is fixed on the cover and interacts with a fixed or movable surface. The seal has at least one lip and is fixed to the cover by a series of axial projections in its connecting portion. The projections, which penetrate at least partially in one or more cavities of the lid, can be in two concentric rings and made in the form of rivets. PREVIOUS TECHNICAL DOCUMENTS PATENT DOCUMENTS [Patent Document 1] JP-A-2001-27227 [Patent Document 2] JP-A-2001-27228 [Patent Document 3] JP-A-2001-27229 [Patent Document 4] JP-A-2007-303643 [Patent document 5] JP-A-2009-250278 SUMMARY OF THE INVENTION PROBLEMS THAT THE INVENTION MUST SOLVE
    [004] Incidentally, with the sliding bearing of Patent Document 1, with the purpose of sealing the respective grooves on the inner and outer peripheral sides between the upper and lower casings, the internal sealing means resiliently and the external sealing means resiliently, which are separate members, are located in the respective grooves, so that time in the assembly operation is required and, therefore, there is a possibility of causing an increase in manufacturing costs. With the sliding bearing of Patent Document 2, as long as the labyrinth sealing means is used to seal the inner groove between the upper and lower enclosures, the feature of preventing dust and muddy water from entering the groove on the inner peripheral side it is slightly lower compared to the resiliently sealing means. With the sliding bearing of Patent Document 3, provided that the sealing means resiliently for sealing the respective grooves on the inner and outer peripheral sides between the upper and lower casings is located on an external surface of the lower casing, there is a possibility of the sealing medium resiliently exit the lower housing when used for extended periods of time. With the sliding bearing of Patent Document 4, for the purpose of sealing the respective grooves on the inner and outer peripheral sides between the upper and lower casings, the inner sealing means resiliently and the outer sealing means resiliently, which are separate members, are located in the respective grooves, so that time is required in the assembly operation and therefore there is a possibility of causing higher costs in the same way as the slide bearing in Patent Document 1. With the slide bearing of Patent Document 5, as long as the labyrinth sealing means is used to seal the respective grooves on the inner and outer peripheral sides between the upper and lower casings, the feature of preventing dust and muddy water from entering the grooves on the peripheral sides internal and external is slightly lower compared to the resiliently sealing medium. None of these plain bearings are satisfactory with respect to manufacturing costs, durability and sealing capacity.
    [005] The present invention was developed in view of the aspects described above, and its objective is to present an impulse sliding bearing that stands out in the assembly efficiency and possibility of replacement, making it possible to reduce the manufacturing costs, and that is capable of to further improve durability and sealing capacity. MEANS TO SOLVE PROBLEMS
    [006] An impulse sliding bearing according to the present invention comprises: an upper housing made of synthetic resin which integrally includes a base portion of the upper annular housing which has a lower annular surface in an axial direction, a portion cylindrical inner portion suspended from the peripheral side suspended from an inner radial peripheral end portion of the lower annular surface of the base portion of the upper casing, and a cylindrical outer portion suspended from the peripheral side suspended from an outer radial peripheral end portion of the lower annular surface of the base portion of the upper shell; a lower casing made of synthetic resin which integrally includes a lower annular base portion of the casing, which has an upper annular surface in the axial direction and superimposed on said upper casing, in order to be able to rotate about a geometric axis with respect to said upper casing and an annular protuberance projecting from the upper annular surface of the lower casing base portion towards the lower annular surface of the upper casing base portion; a thrust plain bearing part made of synthetic resin disposed in an annular space between the lower annular surface of the base portion of the upper shell and the upper annular surface of the base portion of the lower shell in order to be brought up on a surface axial upper annular and an inner cylindrical radial peripheral surface of it in sliding contact with the lower annular surface of the base portion of the upper casing and an outer peripheral radial surface of the cylindrical inner portion suspended from the peripheral side, while being brought up on a lower annular surface axial and an outer peripheral radial surface of the outer portion of it in contact with an axial upper annular surface and an inner cylindrical peripheral radial surface of the annular protuberance; and a sealing member made of synthetic resin that has, on an inner peripheral radial side thereof, a flexible annular sealing portion on the inner peripheral side that contacts the radial inner peripheral surface of the cylindrical inner portion suspended by the peripheral side of the upper casing, in order to seal a groove between the cylindrical inner portion suspended by the peripheral side of the upper casing and the lower casing base portion of the lower casing, which has, on an external peripheral radial side thereof, an annular sealing portion flexible outer peripheral side that contacts a radial outer peripheral surface of the cylindrical outer portion suspended by the peripheral side of the upper housing in order to seal a groove between the cylindrical outer portion suspended by the peripheral side of the upper housing and the base portion bottom shell of the bottom shell, and that has a plurality of connecting portions disposed to the be moved away from each other in a direction around the geometric axis, in order to connect the inner peripheral annular sealing portion to each other and the peripheral lateral annular sealing outer portion, in which each of the plurality of portions connection cable is passed between the thrust slide bearing part and the annular protuberance of the lower housing and is integrally connected at one end portion of it with the inner peripheral lateral annular seal portion and at another end portion of the same with the outer annular sealing portion of the peripheral side, characterized by the fact that each of the connecting portions of said sealing member has a radial connecting portion which is integrally connected in a radial end portion thereof with the external sealing portion peripheral lateral ring and an axial connection portion that is integrally connected in an axial end portion of the same with another portion of radial end of the radial connecting portion and another portion of the axial end thereof with the inner peripheral lateral annular sealing portion, wherein the annular protuberance of said lower housing has upper surface grooves which are arranged on an upper axial surface of the even when they are moved away from each other in a direction around the geometric axis and receive the respective radial connecting portions of the connecting portions and the internal grooves of the peripheral surface that are arranged on a radial internal peripheral surface of the same when being moved away from each other the other in the direction around the geometric axis and connected with the respective of the upper surface grooves and receive the respective of the axial connecting portions of the connecting portions, in which the upper surface of the annular protuberance of the lower enclosure that excludes the upper grooves of surface is positioned in alignment or higher than an axia surface l upper of the radial connecting portion of the connecting portion, and the inner peripheral surface of the annular protuberance of the lower casing that excludes the inner grooves of the peripheral surface is positioned in alignment or radially towards an inner radial lateral surface of the axial connecting portion of the connecting portion, and wherein said thrust slide bearing part has a radial bearing part portion that is in contact with the upper surface of the annular protuberance of the lower housing and a portion of the axial bearing part that is in contact with the contact with the inner peripheral surface of the annular protuberance of the lower envelope.
    [007] According to the impulse slide bearing in accordance with the present invention, each of the plurality of connection portions is integrally connected in its end portion with the inner peripheral lateral annular sealing portion and in its another end portion with the outer annular sealing portion on the peripheral side, so that the number of parts can be reduced, and the assembly efficiency and the possibility of replacement are made to stand out, making it possible to realize a reduction in the costs of manufacturing. In addition, as long as each of the plurality of connection portions is passed between the impulse slide bearing part and the annular protuberance of the lower housing, the durability can be improved by eliminating the possibility of exit. Furthermore, as long as the sealing member has the inner peripheral lateral annular seal portion and the peripheral lateral annular seal portion to seal the grooves between the cylindrical inner portion suspended by the peripheral side of the upper housing and the base portion. of lower casing of the lower casing on the inner peripheral radial side and outer peripheral side, the sealing ability can be further improved.
    [008] In the thrust bearing of this example, the radial bearing portion portion may be in contact with the upper surface of the annular protuberance of the lower housing and the upper surface of the connecting radial portion of the connecting portion, and the portion of an axial bearing part may be in contact with the inner surface of the peripheral side of the annular protuberance of the lower housing and the inner lateral surface of the axial connecting portion of the connecting portion. Alternatively, the radial bearing part portion may be in contact with the upper surface of the annular protuberance of the lower housing although it has a groove with the upper surface of the radial connecting portion of the connecting portion, and may be in contact with the peripheral surface inner of the annular protuberance of the lower casing although it has a groove with the inner lateral surface of the axial connecting portion of the connecting portion.
    [009] In another preferred example, the annular protuberance has a notched annular portion in steps on an external peripheral radial portion of the upper surface thereof, and the flexible annular peripheral sealing portion on the external peripheral side has an annular peripheral sealing base portion outer which is integrally connected at an inner radial peripheral end portion thereof to an outer radial end portion of the radial connecting portion and is fitted to the step notched portion and a flexible outer peripheral seal portion which is connected to a portion of inner radial peripheral end thereof with an outer radial peripheral end portion of the outer peripheral seal base portion and comes into contact with an inner peripheral surface of the cylindrical outer portion suspended by the peripheral side of the upper housing. The outer peripheral seal portion extends diagonally downward from the inner peripheral end portion which has an axial thickness less than the axial thickness of the outer peripheral seal base portion and which is connected to the outer radial peripheral end portion of the portion of external peripheral sealing base.
    [0010] The lower casing has, integrally with the base portion of the lower casing, an outer annular protuberance of peripheral lateral that protrudes from an inner peripheral radial portion of the upper annular surface of the lower casing base portion towards one lower annular surface of the base portion of the upper casing, to form an inner annular recess of the peripheral lateral in cooperation with the inner peripheral surface of the annular protuberance, and the inner annular sealing portion of the peripheral lateral has a sealing base portion annular inner periphery that is integrally connected to an outer radial peripheral end portion thereof with a lower axial end portion of the axial connecting portion and that is fitted to the inner annular peripheral side recess, as well as a flexible inner peripheral seal portion which is connected to an outer radial peripheral end portion with one per tion of the inner radial peripheral end of the sealing base portion and which comes into contact with the outer peripheral surface of the cylindrical inner portion suspended by the peripheral side of the upper housing. The inner peripheral seal portion may extend diagonally downward from the outer peripheral end portion which has an axial thickness less than the seal base portion and which is connected to the inner radial peripheral end portion of the seal base portion internal peripheral.
    [0011] The upper casing may have an annular seat portion integrally formed in a central radial portion of an axial upper annular surface of the base portion of the upper casing.
    [0012] In a preferred example, the cylindrical inner portion suspended from the peripheral side has a thick-walled cylindrical portion connected at its axial upper end portion with the inner radial peripheral end portion of the lower annular surface of the upper housing base portion , as well as the thin-walled cylindrical portion which is connected at its axial upper end portion with a lower-axial end portion of the thick-walled cylindrical portion and has thinner walls in relation to the thick-walled cylindrical portion. The inner annular sealing portion of the peripheral side is in contact with an inner cylindrical radial peripheral surface of the thin-walled cylindrical portion, and the cylindrical outer portion suspended from the peripheral side includes a transversely trapezoidal cylindrical portion that is connected in its upper end portion axial with an outer radial peripheral end portion of the lower annular surface of the base portion of the upper casing and has an inner peripheral surface that is gradually enlarged in diameter as seen in the axial direction away from the lower annular surface of the upper portion of the base casing, as well as an enlarged cylindrical portion that is connected in its upper axial end portion with a lower axial end portion of the transversely trapezoidal cylindrical portion and has an inner peripheral surface that is gradually reduced in diameter as seen in the axial direction away from the e portion x lower axial end of the transversely trapezoidal cylindrical portion and is gradually enlarged in diameter as seen in the distant direction of this reduced diameter end, the outer annular sealing portion of the peripheral lateral being in contact with the transversely trapezoidal cylindrical portion.
    [0013] In a preferred example, the annular protuberance has an arcuate recessed outer peripheral surface that is connected at its lower axial end portion with an outer peripheral end portion of the upper annular surface of the lower casing base portion and is gradually reduced in diameter as seen in the axial direction away from the upper annular surface of the lower housing base portion.
    [0014] The thrust bearing, according to the present invention, is preferably used as a thrust bearing of a support type suspension in a four-wheel motor vehicle.
    [0015] The synthetic resin to form the upper shell and the lower shell may be a thermoplastic synthetic resin such as polyacetal resin, polyamide resin, or polyester resin. In addition, the synthetic resin to form the thrust slide bearing part may be a thermoplastic synthetic resin, such as polyacetal resin, polyamide resin, polyolefin resin, or polyester resin. As well as the synthetic resin to form the sealing member, it is possible to mention polyurethane as a preferred example. ADVANTAGES OF THE INVENTION
    [0016] In accordance with the present invention, it is possible to provide a thrust bearing that stands out in terms of assembly efficiency and possibility of replacement, makes it possible to reduce manufacturing costs, and has the ability to further improve durability and capacity. sealing. BRIEF DESCRIPTION OF THE DRAWINGS
    [0017] Figure 1 is an explanatory cross-sectional view, taken in the direction of the arrow I - I shown in Figure 3, of a preferred embodiment of the present invention;
    [0018] Figure 2 is a front view explaining the modality shown in Figure 1;
    [0019] Figure 3 is an explanatory plan view of the modality shown in Figure 1;
    [0020] Figure 4 is a perspective view of the modality shown in Figure 1;
    [0021] Figure 5 is a partially enlarged explanatory cross-sectional view of the modality shown in Figure 1;
    [0022] Figure 6 is an explanatory cross-sectional view of an upper wrapper of the modality shown in Figure 1;
    [0023] Figure 7 is a partially enlarged explanatory cross-sectional view of the upper housing shown in Figure 1;
    [0024] Figure 8 is an explanatory cross-sectional view, taken in the direction of the arrow VIII - VIII shown in Figure 9, of a lower wrapper of the modality shown in Figure 1;
    [0025] Figure 9 is an explanatory plan view of the lower casing of the embodiment shown in Figure 1;
    [0026] Figure 10 is a perspective view of the lower housing of the embodiment shown in Figure 1;
    [0027] Figure 11 is an explanatory cross-sectional view, taken in the direction of the arrow XI - XI shown in Figure 9, of the lower housing of the modality shown in Figure 1;
    [0028] Figure 12 is an explanatory cross-sectional view, taken in the direction of arrow XII - XII shown in Figure 7, of the lower housing of the modality shown in Figure 1;
    [0029] Figure 13 is a partially enlarged plan view explaining the lower casing of the embodiment shown in Figure 1;
    [0030] Figure 14 is an explanatory cross-sectional view, taken in the direction of the arrow XIV - XIV shown in Figure 15, of an impulse sliding bearing part of the modality shown in Figure 1;
    [0031] Figure 15 is an explanatory plan view of the thrust bearing part of the modality shown in Figure 1;
    [0032] Figure 16 is an explanatory bottom view of the impulse slide bearing part of the modality shown in Figure 1;
    [0033] Figure 17 is an explanatory cross-sectional view, taken in the direction of the arrow XVII - XVII shown in Figure 15, of the thrust bearing part of the modality shown in Figure 1;
    [0034] Figure 18 is an explanatory view, taken in the direction of the arrow XVIII - XVIII shown in Figure 15, of the thrust bearing part of the modality shown in Figure 1;
    [0035] Figure 19 is an explanatory front view of a sealing member of the embodiment shown in Figure 1;
    [0036] Figure 20 is an explanatory front view of the sealing member of the embodiment shown in Figure 1;
    [0037] Figure 21 is an explanatory bottom view of the sealing member of the embodiment shown in Figure 1;
    [0038] Figure 22 is a perspective view of a front side of the sealing member of the embodiment shown in Figure 1;
    [0039] Figure 23 is a perspective view of a bottom side of the sealing member of the embodiment shown in Figure 1; and
    [0040] Figure 24 is an explanatory view, taken in the direction of the arrow XXIV - XXIV shown in Figure 20, of the sealing member of the modality shown in Figure 1. MODE OF CARRYING OUT THE INVENTION
    [0041] Hereinafter, a more detailed description will be given of the present invention with reference to the preferred embodiment illustrated in the drawings. It should be noted that the present invention is not limited to the modality.
    [0042] In Figures 1 to 5, a thrust bearing 1, according to this modality for use in a support type suspension of a four-wheeled motor vehicle, is comprised of an upper housing made of synthetic resin 2 which is attached to a vehicle body side by means of a mounting member; a lower casing made of synthetic resin 3 which is superimposed on the upper casing 2 in order to be able to rotate around a geometric axis O in a circumferential direction R in relation to the upper casing 2 and is fixed to a spring seat side of a helical suspension spring; a thrust plain bearing part made of synthetic resin 5 located in an annular space 4 between the upper housing 2 and the lower housing 3; and a sealing member made of synthetic resin 8 to seal the respective other end portions, which communicate with the outside, from a groove 6 on an inner peripheral side and a groove 7 on an outer peripheral side in a radial direction A between the upper housing 2 and the lower housing 3, the groove 6 and the groove 7 communicating respectively with the annular space 4 in their single annular end portions.
    [0043] As particularly shown in detail in Figures 5 to 7, the upper housing 2 integrally includes a base portion of the upper annular housing 12 which has a lower annular surface 11 in an axial direction B, a cylindrical inner portion suspended from the peripheral side 14 suspended from an inner peripheral end portion 13 in a radial direction A of the lower annular surface 11 of the upper portion base base portion 12, a cylindrical outer portion suspended from the peripheral side 16 suspended from an outer peripheral end portion 15 in the radial direction A of the lower annular surface 11 of the base portion of the upper housing 12, and an annular seat portion 18 projecting projected in a central portion in the radial direction A of an upper annular surface 17 of the base portion of the housing upper 12.
    [0044] The cylindrical inner portion suspended by the peripheral side 14 has a thick wall cylindrical portion 22 connected in its upper end portion 21 to the inner peripheral end portion 13 of the lower annular surface 11 of the base portion of the upper housing 12, as well as the thin-walled cylindrical portion 27 which is connected at its upper end portion 23 with a lower-end portion 26 of the thick-walled cylindrical portion 22 through an inner peripheral annular surface 24 and an outer peripheral annular surface 24 25 and has a thinner wall in relation to the cylindrical portion of thick wall 22.
    The thick wall cylindrical portion 22 and the thin wall cylindrical portion 27 have internal peripheral cylindrical surfaces 29 and 30 respectively which define a through hole 28 through which a shaft member of a support type suspension is inserted. . The thick-walled cylindrical portion 22 has an outer peripheral cylindrical surface 31, and the thin-walled cylindrical portion 27 has an outer peripheral cylindrical surface 32 smaller in diameter than the outer peripheral surface 31.
    The cylindrical outer portion suspended from the peripheral side 16 having an outer peripheral cylindrical surface 35 includes a transversely trapezoidal cylindrical portion 38 which is connected at its upper end portion 36 with the outer peripheral end portion 15 of the lower annular surface 11 of the base portion of the upper housing 12 and has an inner peripheral surface 37 which is gradually enlarged in diameter as seen in a direction away from the lower annular surface 11 of the base portion of the upper housing 12, as well as an enlarged cylindrical portion 42 which is connected at its upper end portion 39 with a lower end portion 40 of the transversely trapezoidal cylindrical portion 38 and has an inner peripheral surface 41 which is gradually reduced in diameter as seen in a direction distant from the lower end portion 40 of the transverse cylindrical portion trapezoidal 38 and is gradually the magnified in diameter as seen in a direction away from that small diameter end.
    [0047] As particularly shown in detail in Figure 5 and Figures 8 to 13, the lower housing 3 integrally includes a lower annular base portion of the housing 52 which has an upper annular surface 51; an annular protuberance 53 projecting from the upper annular surface 51 of the lower housing base portion 52 towards the lower annular surface 11 of the upper housing base portion 12; an outer peripheral annular protuberance 57 projecting from the upper annular surface 51 towards the lower annular surface 11 of the base portion of the upper housing 12 on an inner peripheral side 56 of the upper annular surface 51 of the housing base portion lower 52 in order to form an internal peripheral lateral annular recess 55 in cooperation with an internal peripheral cylindrical surface 54 in the radial direction A an annular protuberance 53; an empty cylindrical portion 60 projecting from an inner peripheral portion 59 of a lower annular surface 58 of the lower housing base portion 52 in order to extend from the lower annular surface 58; an annular projecting portion 63 projecting inwardly from an inner peripheral cylindrical surface 62 of the empty cylindrical portion 60 into an end portion 61 of the empty cylindrical portion 60; an annular projecting portion 64 projecting from the end portion 61 of the empty cylindrical portion 60; and a plurality of projections 66 projecting from a peripheral outer edge portion of an upper annular surface 65 an annular protuberance 53 towards the lower annular surface 11 of the base portion of the upper housing 12 and are arranged along the portion outer peripheral margin of the upper annular surface 65 in such a way as to be separated from each other in the direction R around the geometric axis (circumferential direction R).
    [0048] The annular protuberance 53 includes a notched annular portion in steps 71 in an outer peripheral portion of its upper surface 65; an arched indented outer peripheral annular surface 73 which is connected at its lower end portion 72 with the outer peripheral end portion of the upper annular surface 51 of the lower casing base portion 52 and is gradually reduced in diameter as seen in a distant direction the upper annular surface 51 of the lower casing base portion 52; a plurality of upper surface grooves 74 arranged on their upper surface 65 as they are spaced apart at equal intervals in the circumferential direction R; and a plurality of inner grooves of the peripheral surface 75 which are arranged on their inner peripheral surface 54 when they are spaced apart at equal intervals in the circumferential direction R in such a way as to communicate respectively with the upper grooves of the surface 74 and also communicate with the internal annular recess on the peripheral side 55.
    [0049] The inner peripheral surface 62 of the empty cylindrical portion 60 and an inner peripheral annular surface 76 of the projecting portion 63 define a through hole 77 that is concentric with the through hole 28 and through which the axle member of the suspension of type of support is inserted.
    [0050] As particularly shown in detail in Figure 5 and Figures 14 to 18, the thrust slide bearing part made of synthetic resin 5 disposed in the annular space 4 between the lower annular surface 11 of the base portion of the upper housing 12 and the upper annular surface 51 of the lower housing base portion 52 includes an annular portion of radial bearing part 83 having an upper annular surface 81 which comes in slidable contact with the lower annular surface 11 of the upper housing base portion 12 and a lower annular surface 82 that contacts the upper surface 65, an annular protuberance 53; a cylindrical portion of an axial bearing part 86 which is integrally formed in its end portion in an end portion of the radial bearing part portion 83 in such a way as to extend downwardly and has an internal lateral annular surface 84 which comes in sliding contact with the outer peripheral surface 31 of the thick-walled cylindrical portion 22 and an outer lateral annular surface 85 that comes into contact with the inner peripheral surface 54, an annular protuberance 53; and a plurality of radial portions of the projecting plate part 88 that project outwardly from an outer peripheral surface 87 of the radial bearing part portion 83, and which are respectively arranged between the projections 66 in the circumferential direction R and fixed by the adjacent ones of the projections 66 so that the thrust slide bearing part 5 does not rotate in the circumferential direction R with respect to the lower housing 3.
    [0051] The radial bearing part portion 83 has an annular groove 91 located on an inner peripheral side of the upper surface 81 and a plurality of radial grooves 92 which are open at one end to the annular groove 91 and are open at its other ends. ends to the outer peripheral surface 87, and which are located on the upper surface 81 when spaced at equal intervals in the circumferential direction R. The axial bearing part portion 86 has a plurality of axial grooves 93 that are open at both their ends and they are located on the inner lateral surface 84 when they are spaced at equal intervals in the circumferential direction R. The annular groove mentioned above 91, the radial grooves 92, and the axial grooves 93 serve as reservoirs of lubricating oil.
    [0052] As particularly shown in detail in Figures 19 to 24, the sealing member 8 has on its internal peripheral side a portion of flexible annular sealing on the internal peripheral side 103 that comes in flexural contact with the outer peripheral surface 32 of the portion thin-walled cylindrical portion 27 of the cylindrical inner portion suspended by the peripheral side 14, in order to seal the groove 6 between the thin-walled cylindrical portion 27, i.e., an axial end portion 101 of the cylindrical inner portion suspended by the peripheral side 14 of the upper casing 2, and the outer peripheral lateral annular protuberance 57, i.e., an inner peripheral end portion 102 of the lower casing base portion 52 of the lower casing 3, and has a flexible annular sealing portion on its outer peripheral side. external peripheral side 106 which flexibly contacts flexural contact with the internal peripheral surface 37 of the transverse cylindrical portion t abutment 38 of the cylindrical outer portion suspended by the peripheral side 16, in order to seal the groove 7 between an axial end portion 104 of the cylindrical outer portion suspended by the peripheral side 16 of the upper housing 2 and an outer peripheral portion 105 of the outer portion bottom housing base 52 of bottom housing 3. Additionally, sealing member 8 has a plurality of connecting portions 107 for connecting the inner peripheral sealing ring portion 103 and the outer peripheral sealing ring portion 106 one to the other.
    [0053] Each of the plurality of connecting portions 107 which are arranged to be spaced apart at equal intervals in the circumferential direction R has a radial connecting portion 113 which is integrally connected in its end portion 111 with a portion inner peripheral end ring 112 of the peripheral lateral annular seal portion 106, as well as an axial connecting portion 118 which is integrally connected in its end portion 114 with another end portion 115 of the radial connecting portion 113 and in its other end portion 116 with an annular outer peripheral end portion 117 of the inner peripheral lateral annular seal portion 103.
    [0054] Each of the plurality of connection portions 107 is integrally connected in its other end portion 116 with the inner peripheral sealing ring portion 103 and in its end portion 111 with the outer ring sealing portion of peripheral side 106 when being passed between the thrust slide bearing part 5 and the annular protuberance 53 of the lower housing 3 as the radial connecting portion 113 is received by each of the upper surface grooves 74 and the axial connecting portion 118 is received by each of the internal grooves of the peripheral surface 75.
    [0055] The inner peripheral sealing ring portion 103 includes an annular inner peripheral sealing base portion 131 that is integrally connected in its outer peripheral end ring portion 117 with a lower axial end portion, i.e., the other end portion 116, of the axial connecting portion 118 and that is fitted to the inner annular recess of peripheral side 55, as well as a flexible inner peripheral seal portion 134 that is connected at its outer peripheral portion 132 with an end portion inner peripheral 133 of the sealing base portion 131 and which elastically comes into flexural contact with the outer peripheral surface 32 of the thin-walled cylindrical portion 27 of the cylindrical inner portion suspended from the peripheral side 14.
    [0056] The inner peripheral seal portion 134 extends diagonally downward from the outer peripheral end portion 132 that is less than the thickness of the seal base portion 131 and that is connected with the inner peripheral end portion 133 of the sealing base portion 131.
    [0057] The outer peripheral lateral annular seal portion 106 includes an outer annular peripheral seal base portion 141 that is integrally connected in its inner peripheral end annular portion 112 with an outer lower end portion, that is, to a end portion 111, of the radial connecting portion 113 and which is fitted to the step notched portion 71, as well as the flexible outer peripheral seal portion 144 which is connected at its inner peripheral end portion 142 with an outer peripheral end portion 143 of the outer peripheral sealing base portion 141 and flexibly comes into flexural contact with the inner peripheral surface 37 of the transversely trapezoidal cylindrical portion 38 of the outer cylindrical portion suspended from the peripheral side 16.
    [0058] The outer peripheral seal portion 144 extends diagonally downward from the inner peripheral end portion 142 which is less than the thickness of the outer peripheral seal base portion 141 and which is connected with the end portion outer peripheral 143 of the outer peripheral sealing base portion 141.
    [0059] An upper surface 151 of the radial connecting portion 113 of the connecting portion 107 is positioned in alignment with the upper surface 65 an annular protuberance 53 of the lower housing 3 excludes the upper surface grooves 74, and an inner lateral surface 152 of the axial connecting portion 118 of connecting portion 107 is positioned in alignment with the inner peripheral surface 54, an annular protuberance 53 of the lower housing 3 excluding the inner grooves of the peripheral surface 75. Thus, the radial bearing part portion 83 on its lower surface 82 is in contact with the upper surface 65 an annular protuberance 53 of the lower housing 3 and the upper surface 151 of the radial connecting portion 113 of the connecting portion 107, and the axial bearing part portion 86 in its outer lateral surface 85 is in contact with the inner peripheral surface 54 an annular protuberance 53 of the lower casing 3 and the late surface internal valve 152 of the axial connecting portion 118 of the connecting portion 107.
    [0060] According to an alternative to the aforementioned arrangement, the upper surface 65 an annular protuberance 53 of the lower housing 3 which excludes the upper surface grooves 74 can be positioned higher than the upper surface 151 of the radial connecting portion 113 of the connection 107, and the inner peripheral surface 54 an annular protuberance 53 of the lower casing 3, which excludes the inner grooves of the peripheral surface 75 can be positioned radially towards the inner lateral surface 152 of the axial connecting portion 118 of the connecting portion 107. In that case, the axial bearing part portion 83 on its lower surface 82 is in contact with the upper surface 65 an annular protuberance 53 of the lower housing 3 although it has a groove with the upper surface 151 of the radial connecting portion 113 of the lower portion. connection 107, and the axial bearing portion 86 on its outer lateral surface 85 is in contact with the peripheral surface the inner 54 has an annular protuberance 53 of the lower housing 3 although it has a groove with the inner side surface 152 of the axial connecting portion 118 of the connecting portion 107.
    [0061] The thrust bearing 1 described above is adapted to allow relative rotation in the circumferential direction R of the lower housing 3 in relation to the upper housing 2 by the relative slide in the circumferential direction R of each of the upper surface 81 of the radial bearing part 83 with respect to the lower annular surface 11 of the base portion of the upper housing 12 and the inner side surface 84 of the axial bearing part 86 with respect to the outer peripheral surface 31 of the thick-walled cylindrical portion 22.
    [0062] According to the impulse sliding bearing 1 described above, provided that each of the plurality of connection portions 107 is integrally connected in its end portion to the inner peripheral sealing ring portion 103 and in its another end portion with the peripheral lateral annular sealing portion 106, the number of parts can be reduced, and the assembly efficiency and the possibility of replacement stand out, making it possible to achieve a reduction in manufacturing costs. Furthermore, as long as each of the plurality of connection portions 107 is passed between the thrust slide bearing part 5 and the annular protuberance 53 of the lower housing 3, the durability can be improved by eliminating the possibility of exit.
    [0063] Furthermore, according to the thrust bearing 1, provided that the sealing member 8 has the annular sealing inner portion of the peripheral side 103 to seal the groove 6 between the cylindrical inner portion suspended by the peripheral side 14 of the upper housing 2 and the inner peripheral end portion 102 of the lower housing 3 and the outer annular sealing portion of the peripheral side 106 to seal the groove 7 between the cylindrical outer portion suspended by the peripheral side 16 of the upper housing 2 and the housing portion. outer peripheral end 105 of the lower housing 3, the sealing ability can be further improved. DESCRIPTION OF THE NUMERICAL REFERENCES 1: thrust bearing 2: upper housing 3: lower housing 4: annular space 5: 6: 7 thrust bearing housing: groove 5 8: sealing member
    权利要求:
    Claims (3)
    [0001]
    1. Impulse sliding bearing (1) comprising: an upper housing made of synthetic resin (2) that integrally includes a base portion of the upper annular housing (12) which has a lower annular surface (11) in an axial direction, a cylindrical inner portion suspended by the peripheral side (14) suspended from an inner radial peripheral end portion (13) of the lower annular surface (11) of the base portion of the upper housing (12), and a cylindrical outer portion suspended by the peripheral side (16) suspended from an outer radial peripheral end portion (15) of the lower annular surface (11) of the base portion of the upper housing (12); a lower casing made of synthetic resin (3) which integrally includes a lower annular base portion of the casing (52) which has an upper annular surface (51) in the axial direction and superimposed on said upper casing (2), in order to be able to rotate about a geometric axis with respect to said upper housing (2) and an annular protuberance (53) projecting from the upper annular surface (51) of the lower housing base portion (52) towards the annular surface lower (11) of the base portion of the upper housing (12); a thrust bearing piece made of synthetic resin (5) disposed in an annular space (4) between the lower annular surface (11) of the base portion of the upper housing (12) and the upper annular surface (51) of the lower casing base portion (52), in order to be brought on an axial upper annular surface and an inner cylindrical radial peripheral surface in sliding contact with the lower annular surface (11) of the upper casing base portion (12 ) and an outer peripheral radial surface of the cylindrical inner portion suspended by the peripheral side (14), while it is brought in an axial inferior annular surface and an outer peripheral radial surface of the outer part in contact with an axial superior annular surface (65) and an internal cylindrical peripheral radial surface (54) of the annular protuberance (53); and a sealing member made of synthetic resin (8) which has, on an inner peripheral radial side thereof, a flexible annular sealing portion on the inner peripheral side (103) which contacts a radial outer peripheral surface of the inner portion cylindrical suspended by the peripheral side (14) of the upper housing (2), in order to seal a groove (6) between the inner cylindrical portion suspended by the peripheral side (14) of said upper housing (2) and the base portion of the housing bottom (52) of said bottom housing (3), which has, on an outer peripheral radial side thereof, a flexible annular sealing portion on the outer peripheral side (106) which comes into contact with the radial inner peripheral surface (37) of the cylindrical outer portion suspended by the peripheral side (16) of said upper housing (2), in order to seal a groove (7) between the outer cylindrical portion suspended by the peripheral side (16) of said upper housing (2) and the upper portion casing base bottom (52) of said bottom housing (3), and which has a plurality of connecting portions (107) arranged to be moved away from each other in a direction around the geometric axis, in order to connect the inner portion to each other peripheral lateral annular sealing ring (103) and the peripheral lateral annular sealing portion (106), wherein each of the plurality of connection portions (107) is passed between said impulse sliding bearing part ( 5) and the annular protuberance (53) of said lower housing (3) and is integrally connected at one end portion thereof with the inner peripheral lateral annular seal portion (103) and at another end portion thereof with the outer annular sealing portion of peripheral side (106), CHARACTERIZED by the fact that each of the connecting portions (107) of said sealing member (8) has a radial connecting portion (113) which is integrally connected in one portion radial end (111) m even with the outer annular sealing portion of the peripheral side (106) and an axial connecting portion (118) which is integrally connected in an axial end portion (114) of the same with another radial end portion of the radial connecting portion ( 113) and in another axial end portion (116) of the same with the inner peripheral lateral annular sealing portion (103), wherein the annular protuberance (53) of said lower housing (3) has upper surface grooves (74) ) which are arranged on an upper axial surface of the same when they are moved away from each other in a direction around the geometric axis and receive the respective radial connecting portions (113) of the connecting portions (107) and the internal grooves of the surface peripheral (75) which are arranged on a radial internal peripheral surface of the same when they are moved away from each other in the direction around the geometric axis and connected with the respective of the upper surface grooves (74) and receives m the respective axial connecting portions (118) of the connecting portions (107), where the upper surface (65) of the annular protuberance (53) of the lower housing (3) which excludes the upper surface grooves (74) is positioned in alignment or higher than an upper axial surface of the radial connecting portion (113) of the connecting portion (107), and the inner peripheral surface (54) of the annular protuberance (53) of the lower housing (3) that excludes internal grooves of the peripheral surface (75) is positioned in alignment or radially towards an internal radial lateral surface of the axial connecting portion (118) of the connecting portion (107), and wherein said thrust bearing part (5) has a radial bearing part portion (83) that is in contact with the upper surface (65) of the annular protuberance (53) of the lower housing (3) and an axial bearing part portion (86) that is in contact with the inner peripheral surface (54) d the annular protuberance (53) of the lower casing (3).
    [0002]
    2. Impulse plain bearing, according to claim 1, CHARACTERIZED by the fact that the annular protuberance (53) has a notched stepped annular portion (71) in an outer peripheral radial portion of the upper surface thereof, and the outer peripheral side flexible annular seal portion (106) has an outer annular peripheral seal base portion (141) that is integrally connected to an inner radial peripheral end portion (112) thereof with an outer radial end portion of the radial connecting portion (113) and is attached to the step notched portion (71) and a flexible outer peripheral seal portion (144) which is connected to an inner radial peripheral end portion (142) thereof with an end portion outer radial periphery of the outer peripheral sealing base portion (141) and comes into contact with an inner peripheral surface (37) of the cylindrical outer portion suspended from the peripheral side (16) of said upper housing (2).
    [0003]
    Impulse plain bearing according to either of claims 1 or 2, CHARACTERIZED by the fact that said lower housing (3) has integrally with the lower housing base portion (52) an external annular protuberance from the side protruding from an inner peripheral radial portion of the upper annular surface (51) of the lower housing base portion (52) towards a lower annular surface (11) of the upper housing base portion (12), the in order to form an inner peripheral lateral annular recess in cooperation with the inner peripheral surface (54) of the annular protuberance (53), and the inner peripheral lateral annular seal portion (103) has an inner annular peripheral seal base portion (131) which is integrally connected to an outer radial peripheral end portion thereof with a lower axial end portion of the axial connecting portion (118) and which is fitted to the annular recess inner peripheral side (55), as well as a flexible inner peripheral seal portion (134) that is connected to an outer radial peripheral end portion (132) of the same with an inner radial peripheral end portion (133) of the inner peripheral sealing base (131) and which contacts the outer peripheral surface (32) of the cylindrical inner portion suspended by the peripheral side (14) of said upper housing (2).
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112013000733B1|2021-03-02|thrust bearing
    CN103597228B|2017-08-01|The sliding bearing that synthetic resin is made
    BR112013019313B1|2021-04-20|thrust bearing made from synthetic resin
    CN101449068A|2009-06-03|Sliding bearing
    BRPI0712240B1|2020-03-17|SLIDING BEARING
    BRPI0911295B1|2020-03-31|SLIDING SUPPORT BEARING
    BR112014006767B1|2020-09-29|SLIDING BEARING MADE OF SYNTHETIC RESIN
    US10746224B2|2020-08-18|Slide bearing
    JP6319345B2|2018-05-09|Synthetic plastic plain bearing
    JP6646381B2|2020-02-14|Plain bearing
    同族专利:
    公开号 | 公开日
    CA2804489A1|2012-02-09|
    CN104632872A|2015-05-20|
    CA2892429A1|2012-02-09|
    BR112013000733A2|2016-05-24|
    EP3321526A1|2018-05-16|
    CN103026083A|2013-04-03|
    RU2013104251A|2014-09-20|
    WO2012017591A1|2012-02-09|
    JP5516210B2|2014-06-11|
    US9261134B2|2016-02-16|
    EP2602500A4|2015-03-25|
    RU2533648C2|2014-11-20|
    JP2012036983A|2012-02-23|
    US20130142462A1|2013-06-06|
    US8882357B2|2014-11-11|
    CN104632872B|2017-07-04|
    CA2892429C|2016-08-23|
    EP2602500A1|2013-06-12|
    EP3321526B1|2021-01-06|
    ES2660616T3|2018-03-23|
    CA2804489C|2015-09-08|
    EP2602500B1|2018-01-03|
    US20140355916A1|2014-12-04|
    CN103026083B|2015-11-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS58135265A|1982-02-04|1983-08-11|Arao Kk|Construction for applying water-stoppage and vibration-dampening to embedded concrete structure|
    JPH026279Y2|1983-08-31|1990-02-15|
    DE3715779A1|1987-05-12|1988-11-24|Kali Chemie Pharma Gmbh|FLAVON-3-CARBONIC ACID COMPOUNDS AND METHOD, INTERMEDIATE PRODUCTS FOR THEIR PRODUCTION AND MEDICINAL PRODUCTS CONTAINING THESE COMPOUNDS|
    JPH0743489Y2|1989-03-31|1995-10-09|光洋精工株式会社|Thrust ball bearing device for struts|
    JP2001027228A|1999-07-15|2001-01-30|Oiles Ind Co Ltd|Sliding bearing made of synthetic resin|
    JP4482961B2|1999-07-15|2010-06-16|オイレス工業株式会社|Synthetic plastic plain bearing|
    JP4419217B2|1999-07-15|2010-02-24|オイレス工業株式会社|Synthetic plastic plain bearing|
    JP4613379B2|1999-12-15|2011-01-19|オイレス工業株式会社|Synthetic plastic thrust bearing|
    JP3988397B2|2001-02-27|2007-10-10|オイレス工業株式会社|Synthetic plastic plain bearing|
    US7993061B2|2002-10-03|2011-08-09|Oiles Corporation|Sliding bearing|
    JP4288930B2|2002-10-03|2009-07-01|オイレス工業株式会社|Plain bearing|
    FR2865008B1|2004-01-13|2006-03-31|Skf Ab|SUSPENSION STOP ROLLING DEVICE.|
    RU2270762C1|2004-07-26|2006-02-27|Открытое акционерное общество "АВТОВАЗ"|Device for fastening spring strut of automobile suspension|
    JP4747853B2|2006-01-23|2011-08-17|株式会社ジェイテクト|Fixed-side sealing member for sensor-equipped sealing device for rolling bearing device and method for manufacturing the same|
    JP4997822B2|2006-05-15|2012-08-08|オイレス工業株式会社|Plain bearing|
    JP5029058B2|2007-02-20|2012-09-19|オイレス工業株式会社|Thrust slide bearing and combination mechanism of this thrust slide bearing and piston rod|
    JP5157210B2|2007-03-20|2013-03-06|オイレス工業株式会社|Thrust slide bearing and combination mechanism of this thrust slide bearing with piston rod and coil spring|
    US7832287B2|2007-05-04|2010-11-16|Gm Global Technology Operations, Inc.|Sensor gap balancer|
    CN201057268Y|2007-07-04|2008-05-07|何全波|Bearing seal device|
    JP5233370B2|2008-04-02|2013-07-10|オイレス工業株式会社|Thrust sliding bearing|
    JP5332379B2|2008-07-28|2013-11-06|オイレス工業株式会社|Synthetic plastic thrust plain bearing|
    JP5516210B2|2010-08-06|2014-06-11|オイレス工業株式会社|Thrust sliding bearing|
    JP5906590B2|2011-06-09|2016-04-20|オイレス工業株式会社|Synthetic plastic plain bearing|JP5516210B2|2010-08-06|2014-06-11|オイレス工業株式会社|Thrust sliding bearing|
    JP5444270B2|2011-02-23|2014-03-19|オイレス工業株式会社|Thrust slide bearing made of synthetic resin|
    JP5906590B2|2011-06-09|2016-04-20|オイレス工業株式会社|Synthetic plastic plain bearing|
    JP5842402B2|2011-06-20|2016-01-13|オイレス工業株式会社|Thrust sliding bearing|
    JP5909976B2|2011-10-07|2016-04-27|オイレス工業株式会社|Synthetic plastic plain bearing|
    JP5545553B2|2012-05-15|2014-07-09|大豊工業株式会社|Thrust bearing|
    JP6194586B2|2013-01-29|2017-09-13|オイレス工業株式会社|Synthetic plastic plain bearing|
    JP6017340B2|2013-02-15|2016-10-26|オイレス工業株式会社|Synthetic plastic plain bearing|
    JP6322889B2|2013-02-15|2018-05-16|オイレス工業株式会社|Synthetic plastic plain bearing|
    JP5755277B2|2013-03-27|2015-07-29|東レプラスチック精工株式会社|Bearing tray, method of manufacturing the same, and bearing using the bearing tray|
    JP6057814B2|2013-04-11|2017-01-11|オイレス工業株式会社|Synthetic plastic plain bearing|
    JP2015215032A|2014-05-09|2015-12-03|オイレス工業株式会社|Thrust slide bearing|
    JP2016003723A|2014-06-17|2016-01-12|オイレス工業株式会社|Slide bearing|
    JP6326657B2|2014-06-26|2018-05-23|オイレス工業株式会社|Thrust sliding bearing|
    JP6303239B2|2014-08-12|2018-04-04|オイレス工業株式会社|Thrust sliding bearing|
    JP2016142308A|2015-01-30|2016-08-08|オイレス工業株式会社|Thrust bearing for vehicle|
    DE102015114534A1|2015-08-31|2017-03-02|Hasse & Wrede Gmbh|Torsional vibration damper with bearing device|
    EP3372867B1|2015-11-06|2020-06-24|Harmonic Drive Systems Inc.|Flexible external gear and strain wave gearing device|
    DE102015119692A1|2015-11-13|2017-05-18|Thyssenkrupp Ag|Recording arrangement of a suspension spring for a strut|
    EP3385555B1|2015-12-02|2020-07-15|Oiles Corporation|Synthetic resin sliding bearing|
    US10086869B2|2016-06-22|2018-10-02|Tenneco Automotive Operating Company Inc.|Steering stabilizer for a motor vehicle|
    CN109312784B|2016-06-24|2020-11-10|奥依列斯工业株式会社|Thrust bearing for vehicle|
    EP3489535A4|2016-07-19|2020-03-11|Oiles Corporation|Slide bearing|
    DE102017107135A1|2017-04-03|2018-10-04|Vibracoustic Gmbh|Bearings for a support bearing|
    ES2737842R1|2017-05-26|2020-11-06|Tim Ebeling|Suspension member equalization system for elevators|
    JP2019168000A|2018-03-22|2019-10-03|オイレス工業株式会社|Slide bearing and manufacturing method of the same|
    法律状态:
    2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2020-06-23| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2021-02-02| B09A| Decision: intention to grant|
    2021-03-02| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 15/06/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2010178215A|JP5516210B2|2010-08-06|2010-08-06|Thrust sliding bearing|
    JP2010-178215|2010-08-06|
    PCT/JP2011/003406|WO2012017591A1|2010-08-06|2011-06-15|Thrust sliding bearing|
    [返回顶部]