• 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:
    This pulley device (10) for a tensioner roller or belt or chain winder comprises a pulley (12), a bearing (14), a spacer (18) supporting said bearing (14) and provided with a bore (50) therethrough, a fixing screw (20) extending inside said bore (50) of the spacer (18), and an axial retaining member (70) of the screw (20). The axial retaining member (70) is fixed on the spacer (18) and comprises retaining means () cooperating with the screw (20).
    公开号:FR3035928A1
    申请号:FR1553964
    申请日:2015-05-04
    公开日:2016-11-11
    发明作者:Romuald Lescorail；Frederic Liege
    申请人:SKF AB；
    IPC主号:
    专利说明:

    [0001] The present invention relates to the field of pulley devices for tensioner or retractor roller provided to cooperate with a chain or a belt, for example a motor vehicle internal combustion engine timing belt. Such rollers are generally used to permanently maintain a tension on the belt or chain in a specific range or to locally change the path taken by it. These are then called tensioning rollers or rollers. In the rollers, the pulley is rotatably mounted on a screw or a shaft via a bearing, the roller being then attached directly or indirectly to the engine block or to a member of a tensioner device, for example an articulated arm or an eccentric. The bearing is any mechanical device for implementing a pivot connection between the pulley and the screw or the axis, and may for this purpose be a rolling bearing or other ... To achieve the fixing of the roller on its support a spacer is generally used in association with said screw or shaft. During this assembly, it is desirable that the axis or the screw is axially integral with the other elements constituting the roller and comprising the pulley. This provides a set that can not be dismantled, easy to handle and transport, and can be mounted easily.
    [0002] For this purpose, document EP 1 120 584 discloses a device comprising a pulley, a bearing, a spacer supporting the bearing and a fixing screw immobilized axially with respect to the spacer. The axial retention of the fixing screw relative to the spacer is effected by means of an elastic ring. This solution however has drawbacks among which the fact that the elastic ring is difficult to implement and that its holding in position is not always assured. In the document FR 2 954 437, another axial retaining means is detailed, comprising a ring interposed between the spacer 3035928 2 and the fixing screw and provided to cooperate with a specific groove made on said screw. This solution is not fully satisfactory, especially since it requires a particular design of the fixing screw. In addition, prior to mounting the fixing screw when the device is assembled, there is a risk of loss of the retaining ring. Relatively large clearance must also be made on the front surface of the spacer to allow mounting of the retaining ring. This greatly reduces the contact area between the spacer and its support. The present invention aims to overcome these disadvantages. More particularly, the present invention aims to provide a pulley device easy to manufacture, to assemble and economic.
    [0003] According to a first aspect, there is provided a pulley device for a tensioning roller or belt or chain winder comprising a pulley, a bearing, a spacer supporting said bearing and provided with a through bore, a fixing screw extending within said bore of the spacer, and an axial retention member of the screw.
    [0004] The axial retainer is attached to the spacer and includes retaining means cooperating with the screw. The establishment of the axial retaining member is made easy by the fact that it is fixed on the spacer. The risk of loss of the retainer is also reduced. With the retaining means, the screw is held axially efficiently. Furthermore, it is possible to use standard design fastening screws which have no throat. In a preferred embodiment, the axial retainer is attached to an axial end of the spacer.
    [0005] According to one embodiment, the retaining means of the axial retaining member are elastically deformable at least in the radial direction and cooperate by contact with the screw. It can also be provided that the retaining means of the axial retaining member extend obliquely in the direction of the screw and are able by a bracing effect to axially immobilize the screw. Such a design of the retaining means makes it possible to ensure effective retention of the screw relative to the spacer, without impairing the simplicity of assembly of the device. According to one embodiment, the bore of the spacer comprises a chamfer, the retaining means of the axial retaining member being radially disposed within said chamfer. According to one embodiment, the axial retaining member 10 comprises a bearing portion axially abutting against an end surface of the spacer. In such an embodiment, provision may be made for the retaining means to extend radially inwards from the support portion.
    [0006] Advantageously, the axial retaining member comprises an attachment portion mounted on an outer surface of the spacer. The fixing portion allows the attachment of the retaining member on the spacer. For this purpose, it can be conceived in different ways. According to a first variant, the fastening portion of the axial retaining member is mounted in radial contact with the bore of the bearing. According to a second variant, the axial retaining member further comprises a flange extending the fixing portion and mounted axially bearing against the bearing. According to one embodiment, the attachment portion comprises a rib extending within an annular groove of the spacer. Advantageously, the fixing portion is axial and is provided with an annular rib directed radially towards the inside of the device.
    [0007] In another aspect, there is provided a method of assembling a pulley device for a tensioning roller or belt or belt winder, in which a subassembly comprising a pulley, a bearing, a spacer supporting said bearing is mounted. bearing and provided with a through bore, and an axial retainer fixed to the spacer, 3035928 4 and a fixing screw is introduced into said bore of the spacer, said retainer comprising retaining means axial cooperating with the screw to block at least one axial displacement of the screw in the opposite direction to its direction of introduction.
    [0008] Other objects, features and advantages of the invention will appear on reading the following description, given solely by way of non-limiting example, and with reference to the appended drawings, in which: FIG. axial section of a pulley device according to a first embodiment of the invention, - Figure 2 is a detail view of Figure 1, - Figure 3 is an axial sectional view of a pulley device. according to a second embodiment of the invention, - Figure 4 is a detail view of Figure 3, and - Figure 5 is an axial sectional view of a pulley device according to a third embodiment of the invention. As can be seen in FIG. 1, the pulley device for tensioner or belt or chain winder, referenced as a whole, comprises a pulley 12, a rolling bearing 14, a spacer 18 of generally cylindrical shape and a fastening screw. The fixing screw 20 has the function of making the pulley device, consisting of the pulley 12, the bearing 14 and the spacer 18, integral with an external support (not shown). As will be described in more detail hereinafter, the device 10 also includes a member adapted to retain the fastening screw 20 with respect to the spacer 18. The pulley device 10 has substantially a shape of revolution, around a cylindrical axis 16. The pulley 12 comprises an outer axial portion 24 having an outer surface intended to co-operate with a belt or a chain (not shown), an inner axial portion 26 and an intermediate radial connecting portion 28 connecting said portions. The outer 24 and inner 26 portions are coaxial with the axis 16. Rigidification ribs 29 are also provided between the inner axial portions 26 and 26 and outer 24 and are connected to the intermediate portion 28. The rolling bearing 14, d 16, comprises an inner ring 30, an outer ring 32, a row of rolling elements 34, here made in the form of balls, arranged between the races of the rings, and a cage 36 ensuring the maintenance of the circumferential spacing of the rolling elements 34. The rolling bearing 14 also comprises on each side an annular seal 38, 40 fixed to the outer ring 32 to close the radial space existing between the rings and inside which housed the rolling elements 34 and the cage 36. In the embodiment shown, the inner ring 30 and outer 32 are massive. The term "solid ring" means a ring whose shape is obtained by machining with removal of chips (turning, grinding) from tubes, bars, forged blanks and / or rolled. The inner ring 30 has an axial outer surface of revolution (not referenced) on which is formed the toroidal raceway for the rolling elements 34. The inner ring 30 also has a bore 20 (not referenced) mounted or fitted on the spacer 18 and two radial front faces 30a, 30b defining axially said bore and the outer surface. The outer ring 32 has a similar design. In the exemplary embodiment illustrated, the pulley 12 is obtained by overmolding on the outer ring 32 of a plastic material, such as a polyamide. This results in excellent cohesion between these parts. Alternatively, the pulley could be made of sheet metal and be fitted on the outer ring 32. In another variant, the pulley 12 and the outer ring 32 could be made in one piece. The spacer 18, axisymmetric axis 16, comprises a cylindrical axial portion 42 of axis 16 on which is adapted the inner ring 30 of the rolling bearing 14, and which is extended at one axial end by a portion Axial 44 cylindrical of larger 3035928 6 diameter. An annular radial shoulder 46 is provided between the axial portions 42, 44 and forms an abutment surface against which the front surface 30a of the inner ring 30 bears axially. Axially on the side opposite the shoulder 46, the axial portion 5 44 is delimited by a radial front surface 48 adapted to bear against the external support device to allow mounting and fixing the device on said support. The support may for example be the engine block, an articulated arm or an eccentric of the associated automatic tensioner roller. The axial portion 44 extends in axial projection relative to the pulley 12. Axially on the opposite side to the radial front surface 48, the axial portion 42 is delimited by a radial front surface 49. The spacer 18 is delimited axially by the radial surfaces 48, 49 front. In this embodiment, the axial dimension of the axial portion 42, which corresponds to the distance between the surfaces 46 and 49, is very slightly less than that of the inner ring 30. In this way, the radial surface 49 is slightly axially offset from the radial surface 30b. The spacer 18 comprises a cylindrical bore 50, of axis 16, inside which the fixing screw 20 extends. The fixing screw 20 can be adjusted with a greater or lesser radial clearance in the bore 50. The bore 50 is through. The bore 50 extends axially from the radial surface 49 to the radial surface 48. The outer surface 51 of the spacer 18, corresponding to the outer surfaces of the portions 42 and 44, is axisymmetric with axis 16 and radially opposite to the inner surface of the bore 50. The fixing screw 20 comprises a clamping head 54 and a rod provided with a smooth portion 56 extending axially from the head and being centered in the bore 50 , and a threaded portion 58 to 30 opposite said head 54. The threaded portion 58 of the screw is projecting axially relative to the radial surface 48 of the spacer 18. It is intended to be inserted into a tapped hole in the support outside the device. The device 10 also comprises a washer 60 disposed around the smooth portion 56, in contact with the head 50. The head 54 comes axially in abutment against the washer 60, the latter coming axially in abutment against the front surface 30b of the Inner ring 30. As shown more clearly in FIG. 2, the outer surface 51 of the spacer comprises an annular groove 62. The groove 62 extends axially on a portion of the outer surface 51 adjacent to the front surface 49. An annular groove 63 is furthermore made from the bottom of the groove 62. The groove 63 is delimited axially by two frustoconical surfaces 64 and 65. Each frustoconical surface 64, 65 is connected on the one hand to the bottom of the groove 63 and secondly at the bottom of the groove 62. A chamfer 68 is made on the bore 50 of the spacer 18 and opens on the radial surface 49. The chamfer 68 is located axially on the side of the head 54 of the screws. The chamfer 68 has a truncated cone-shaped shape, axis 16, of smaller diameter equal to that of the bore 50. As indicated above, the pulley device 10 further comprises an axial retaining member 70 of the screw 20 in relation to the spacer 18. In the illustrated embodiment, the axial retaining member 70 has the function of keeping the bearing 14, the spacer 18 and the fastening screw 20 firmly together, in particular when the device 10 is not attached to the outer support. The axial retaining member 70 has a cylindrical shape and is arranged around the axis 16. The axial retaining member 70 is here in the form of a washer which is made in one piece, for example to low cost by cutting and stamping a sidewall. Alternatively, the axial retaining member 70 may be made of synthetic material, for example a polyamide. The axial retaining member 70 is fixed on the outer surface 51 of the spacer, axially bears against the front surface 49 of said spacer and cooperates by contact with the fixing screw 20. The axial retaining member 70 comprises an annular radial bearing portion 72 mounted axially bearing against the front surface 49 of the spacer, an annular axial fixing portion 74 mounted on the outer surface 51 of said spacer, and screw retaining means 20 made here in the form of an annular tongue 78. The fixing portion 74 axially extends a large diameter edge of the bearing portion 72 while the tongue 78 5 extends a small diameter edge of said bearing portion 72. The fixing portion 74 radially surrounds the tongue 78. The fixing portion 74 has a substantially cylindrical shape about the axis 16. The diameter of the fixing portion 74 is adapted so that the inner surface thereof is radially in contact with the groove 62 of the spacer 18 The fixing portion 74 further comprises an annular rib 76 directed radially inwardly. The rib 76 extends inside the groove 63. Furthermore, the fastening portion 74 is tightly mounted in radial contact against the bore of the inner ring 30 of the rolling bearing. Thus, the securing portion 74 is forcefully inserted into the space made free by the groove 62 and the groove 63 of the spacer, between the portion 42 of said spacer and the inner race 30. When the rib 76 is inserted in the groove 63, the axial retaining member 70 is secured to the spacer 18. The attachment of the axial retaining member 70 to the spacer 18 is made by diametric interference between the rib 76 and the groove 63 This holding is reinforced by the contact pressure exerted by the inner surface of the fixing portion 74 on the groove 62. In an alternative embodiment, it is conceivable to replace the annular rib 76 with a boss or a plurality of bosses. circumferentially distributed on the inner surface of the fixing portion 74. The retention of the member 70 relative to the spacer 18 is then ensured by inserting the boss (es) in the annular groove 63. In such a manner Alternatively, the annular groove 63 may be replaced by a hole or a plurality of holes, each hole being intended to contain a boss. It is also possible, without departing from the invention, to envisage any other means for holding the retaining member 70 axially with respect to the spacer 18. For example, the fixing portion 74 may be fretted or glued onto the outer surface 51 of the spacer 18. The annular tongue 78 extends obliquely from the bearing portion 72 inwardly. The tongue 78 has a frustoconical shape similar to the frustoconical shape of the chamfer 68. The annular tongue 78 is inserted inside the chamfer 68. The annular tongue 78 includes an end 80 in contact with the rod of the fixing screw 20. and more particularly with the unthreaded portion 56. The annular tongue 78 is provided to flex elastically in the radial direction upon insertion of the fastening screw 20 into the retaining member 70. The annular tongue 78 allows, by effect of buttressing, to avoid axial displacement of the fastening screw 20 in a direction opposite to the direction of engagement of the screw within the bore 50 of the spacer.
    [0009] It may be envisaged, in an alternative embodiment, to replace the annular tongue 78 with a plurality of tabs spaced apart from one another in the circumferential direction about the axis 16. In such an alternative embodiment, each tongue is deformable elastically mainly in the radial direction so as to exert the same bracing effect. The fixing portion 74 also exerts a contact pressure against the bore of the inner ring 30, this contact pressure being directed radially outwards. This contact pressure causes an adhesion force tending to oppose the movement of the inner ring 30 relative to the axial retaining member 70. In this way, the retaining member 70 axially retains the inner ring 30 relative to the spacer 18. In this embodiment, the retaining member 70 thus performs a double blocking function: an axial retention of the bearing 14 and an axial retention of the fixing screw 20. To achieve the assembly shown in Figure 1, the procedure is as follows. In a first step, a first subassembly is made consisting of the spacer 18, the retaining member 70, the bearing 14 and the pulley 12. The elements constituting this first subassembly are held together by the action of the retaining member 70. In particular, thanks to this member 70, the disengagement of the spacer 18 relative to the inner ring 30 is prevented. It is then not necessary to use an external means 5 to implement an artificial hold. Thus, the member 70 facilitates the assembly process. At the same time, a second subassembly consisting of the fastening screw 20 and the washer 60 is formed. In a second step, the fastening screw 20 is introduced axially into the bore 50 of the fastener 50. 18. In doing so, the rod of the screw 20 is inserted into a bore delimited by the end 80 of the axial retaining member 70. This results in a deformation mainly in the radial direction of the annular tongue 78. and the appearance by a bracing effect of a force for axially holding the fixing screw 20 with respect to the spacer 18. At the end of the second step, the elements constituting the two subassemblies are integral with each other. , even if the pulley device is not attached to the outer support. It then becomes possible to store, transport and manipulate the pulley device without having to provide additional restraining means.
    [0010] FIG. 3 shows a pulley device referenced 90 as a whole. The elements of the device 90 identical to those of the device 10 bear the same references. The pulley device 90 comprises a pulley 12, a rolling bearing 14, a spacer 18 and a fixing screw 20.
    [0011] The pulley device 90 comprises an axial retaining member 92 of the fixing screw 20, shown in detail in FIG. 4. The member 92 comprises an annular radial bearing portion 94 mounted axially in front of the front surface 49 of the spacer 18, an annular axial fixing portion 104 mounted on the outer surface 51 of said spacer, a flange 108 mounted in contact with the bearing 14 and fastener retaining means 20 made in the form of an annular tongue 112. From a structural point of view, the retaining member 92 differs mainly from the retaining member 70 of the first exemplary embodiment by the presence of the flange 108. In this embodiment, the support portion 94 is not immediately in contact with the front surface 49. The bearing portion 94 is in direct contact with the head 54 of the fixing screw 20. In this exemplary embodiment, therefore, a washer of the washer type 60 of the pulley device of FIG. 1 is abstained from use. The outer surface 51 of the spacer 18 comprises an annular groove 96 delimited by two surfaces. opposed frustoconicals 98 and 100.
    [0012] The attachment portion 104 comprises two axially opposite ends and extends, by one of said ends, a large diameter edge of the bearing portion 94 and, at the other of said ends, a small diameter edge of the collar 108. The flange 108 is substantially contained in a plane perpendicular to the axis 16. The fixing portion 104 is axially delimited by the bearing portion 94 and the flange 108. The flange 108 is axially mounted against the front surface 30b of the inner ring 30. The attachment portion 104 surrounds the outer surface 51 of the spacer 18. The attachment portion 104 comprises an annular rib 106 facing the groove 96. The rib 106 is provided so that its inner diameter is less than that of the outer surface 51, and substantially equal to that of the groove 96. Outside the rib 106, the diameter of the fixing portion is greater than r to that of the outer surface 51. In this way, when the rib 106 is introduced into the groove 96, said rib 106 is inserted radially between the frustoconical surfaces 98 and 100. The axial retaining member 92 is then held axially by relative to the spacer 18.
    [0013] Due to the retention of the rib 106 inside the groove 96, the member 92 is held axially integral with the spacer 18. Due to the mechanical action of the flange 108 against the surface 30b, the body 92 prevents axial movement of the rolling bearing 14 relative to the spacer 18.
    [0014] The annular tongue 112 comprises an end 114 defining a bore containing the rod 56 of the fixing screw 20. In the same way as the annular tongue 78 of the first exemplary embodiment, the annular tongue 112 is elastically deformable and cooperates by contact with the fixing screw 20 so as to axially immobilize said screw 20 by a bracing effect. In this way, the retaining member 92 performs a double blocking function: an axial retention of the fixing screw 20 and an axial retention of the rolling bearing 14 with respect to the spacer 18, 10 when said screw 20 is inserted at most in the spacer 18. Referring to Figure 5, there is shown a third embodiment of a pulley device 120, on which the identical elements bear the same references. This embodiment differs in particular from that of FIG. 1 in that an axial retaining member 122 is fixed against the front surface 48 of the spacer 18, replacing the retaining member 70 of the first exemplary embodiment. which was fixed against the front surface 49. The axial retaining member 122 has a structure identical to that of the retaining member of the first exemplary embodiment described. The bore 50 of the spacer 18 comprises a chamfer 121 opening on the surface 48. The chamfer 121 is located axially on the opposite side to the head 54 of the screw. The axial retaining member 122 comprises an annular radial bearing portion 124 mounted axially 25 in contact with the surface 48, an annular axial fastening portion 126 mounted radially in contact with the outer surface 51 and an annular tongue 128 radially disposed at In an alternative, the tongue 128 may be disposed outside the bore of the spacer 18. In such an alternative, the chamfer 121 is not necessary. It may be advantageously provided a chamfer on the outer support, intended to accommodate the tongue 128. The fixing portion 126 cooperates with the outer surface 51 of the spacer 18 to ensure the axial retention of the member 122 relative to said spacer 18. To do this, the fixing portion 126 comprises a rib (not referenced) and the outer surface 51 comprises a suitable groove (not referenced) to cooperate with the rib. Alternatively, the attachment portion 126 may include a groove for containing a rib on the outer surface 51. Alternatively, the surface 51 may include a plurality of bosses, the attachment portion 126 including a plurality of holes, each hole being intended to contain a boss. Alternatively, the attachment portion 126 may be devoid of such ribs and holes and may be hooped or glued to the outer surface 51 of the spacer 18. The bearing portion 124 has an annular shape and is substantially contained in a perpendicular to the axis 16. Its large diameter is substantially equal to the diameter of the portion 44 of the spacer 18, so that the fixing portion 126 can cooperate with the outer surface 51 of the spacer 18. Its small diameter is substantially equal to that of the circle located at the intersection of the chamfer 121 and the surface 48. With the fixing portion 126, the axial retaining member 122 is held axially relative to the spacer 18. The The annular tongue 128 is deformed mainly radially and cooperates by contact with the threaded portion 58 of the fastening screw. By the effect of jamming, the end of the tongue 128 is inserted in a thread of the threaded portion 58. It follows an axial retention in position of the fastening screw 20 with respect to the member 122, and then an axial retention of the screw 20 relative to the spacer 18, in the opposite direction to its insertion direction. When the screw 20 is depressed to its maximum, it is then held in position against the washer 60, the latter maintaining the inner ring 30 against the shoulder 46 of the spacer 18. This 30 allows the maintenance of the integral assembly consisting of the spacer 18, the rolling bearing 14 and the screw 20 fixing. In this way, the invention provides a pulley device consisting of an assembly of parts held together, even when the pulley device is not attached to its outer support.
    [0015] In addition, as has been seen with reference to FIGS. 1 and 2, it is not necessary to use, during the assembly of the pulley device, an external means for holding the parts constituting the different components together. subassemblies to be assembled.
    [0016] The method of assembling the pulley device is therefore simpler. Moreover, for the same reason, it is also not necessary to use an external means to maintain integral parts constituting the pulley device, when it is not mounted on an external support. Storage, transportation and handling of the pulley device prior to mounting on an external support is facilitated. Since external means are not used, there is no need to disassemble the latter during a method of mounting the pulley device on its outer support. The method of mounting the pulley device on its support is therefore simpler. Thus, not only does the invention facilitate the storage and transport of the pulley device, but it also simplifies assembly and mounting processes on an external support. The invention has been illustrated on the basis of a pulley device 20 comprising a rolling bearing provided with an inner ring, an outer ring and at least one row of rolling elements arranged between the rings. Alternatively, the bearing may be of the sliding type and consist of an annular body, for example made of thermoplastic material, and may include radial grooves 25 able to be filled with lubricant. In another variant, the sliding bearing may comprise two tracks or rings sliding directly on one another.
    权利要求:
    Claims (11)
    [0001]
    REVENDICATIONS1. Pulley device (10, 90, 120) for tensioner roller or belt or chain winder comprising a pulley (12), a bearing (14), a spacer (18) supporting said bearing (14) and provided with a bore Therethrough (50), a fixing screw (20) extending within said bore (50) of the spacer (18), and an axial retaining member (70, 92, 122) of the screw (20). ), characterized in that said axial retaining member (70, 92, 122) is fixed on the spacer (18) and comprises retaining means (78, 112, 128) cooperating with the screw (20).
    [0002]
    2. Device (10, 90, 120) according to claim 1, wherein the retaining means (78, 112, 128) of the axial retaining member (70, 92, 122) are elastically deformable at least in the direction radial and cooperate by contact with the screw (20).
    [0003]
    3. Device (10, 90, 120) according to claim 1 or 2, wherein the retaining means (78, 112, 128) of the axial retaining member (70, 92, 122) extend obliquely in the direction of the screw (20) and are able by a bracing effect to axially immobilize the screw (20).
    [0004]
    The device (10, 90, 120) according to any one of the preceding claims, wherein the bore (50) of the spacer (18) comprises a chamfer (68, 121), the retaining means (78, 112, 128) of the axial retaining member (70, 92, 122) being radially disposed within said chamfer (68, 121).
    [0005]
    5. Device (10, 90, 120) according to any one of the preceding claims, wherein the axial retaining member (70, 92, 122) comprises a bearing portion (72, 94, 124) axially in abutment. against an end surface (49, 48) of the spacer (18).
    [0006]
    The device (10, 90, 120) according to claim 5, wherein the retaining means (78, 112, 128) extends radially inwardly from the bearing portion (72, 94, 124 ). 3035928 16
    [0007]
    The device (10, 90, 120) according to any one of the preceding claims, wherein the axial retaining member (70, 92, 122) comprises an attachment portion (74, 104, 124) mounted on a surface outer (51) of the spacer (18). 5
    [0008]
    8. Device (10) according to claim 7, wherein the fastening portion (74) of the axial retaining member (70) is mounted in radial contact against the bore of the bearing (14).
    [0009]
    9. Device (90) according to claim 7, wherein the axial retaining member (92) further comprises a flange (108) 10 extending the fixing portion (104) and mounted axially bearing against the bearing (14). .
    [0010]
    The device (90) according to any one of claims 7 to 9, wherein the attachment portion (74, 104, 126) comprises a rib (76, 106) extending within an annular groove. (63, 96) of the spacer (18).
    [0011]
    11. A method of assembling a pulley device (10, 90, 120) for a tensioning roller or belt or belt winder, in which a subassembly comprising a pulley (12), a bearing (14) is mounted. a spacer (18) supporting said bearing (14) and provided with a bore (50) therethrough, and an axial retaining member (70, 92, 122) attached to the spacer (18), and introducing a fastening screw (20) within said bore (50) of the spacer (18), said retainer (70, 92, 122) including axial retaining means (78, 112, 128) cooperating with the screw (20) to block at least one axial displacement of the screw (20) in the opposite direction to its insertion direction.
    类似技术:
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    同族专利:
    公开号 | 公开日
    CN106122399B|2021-06-08|
    FR3035928B1|2017-12-01|
    US20160327146A1|2016-11-10|
    CN106122399A|2016-11-16|
    US10082200B2|2018-09-25|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP1120584A1|2000-01-26|2001-08-01|Dr.Ing. h.c.F. Porsche Aktiengesellschaft|Deflection or tensioning roller of a belt drive of an internal combustion engine|
    DE10043840A1|2000-09-06|2002-03-14|Schaeffler Waelzlager Ohg|Deflection roller for a traction drive|
    DE102005002029A1|2005-01-15|2006-07-27|Schaeffler Kg|Pulley for belt drives with stud fastening|
    DE102008051648A1|2008-09-18|2010-03-25|Schaeffler Kg|Tensioning roller or guide roller has spacer, which is made of plastic or is designed as reinforced plastic component, where spacer includes reinforcement made from aluminum or steel|
    FR2954437A1|2009-12-23|2011-06-24|Skf Ab|PULLEY DEVICE FOR TENDER ROLLER OR ROLLER.|FR3078758A1|2018-03-06|2019-09-13|Aktiebolaget Skf|PULLEY DEVICE FOR TILT ROLLER OR ROLLER|JP2002317811A|2001-04-19|2002-10-31|Hiromoto Kitaguchi|Bearing attaching shaft|
    JP5165462B2|2008-05-28|2013-03-21|Ｎｔｎ株式会社|Pulley fixing structure|
    WO2013142951A1|2012-03-29|2013-10-03|Litens Automotive Partnership|Tensioner and endless drive arrangement|
    FR2992707B1|2012-06-29|2015-01-16|Skf Ab|TENSION ROLLER AND TENSIONER FOR BELT TRANSMISSION OF AN INTERNAL COMBUSTION ENGINE|
    ITTO20130893A1|2013-11-04|2015-05-05|Skf Ab|INTEGRATED GROUP BETWEEN PULLEY AND ROLLING BEARING|
    FR3013093B1|2013-11-14|2015-12-11|Skf Ab|PULLEY DEVICE FOR CHAIN OR BELT AND MOTOR VEHICLE EQUIPPED WITH SUCH A DEVICE|
    FR3019866B1|2014-04-11|2016-12-23|Skf Ab|PULLEY DEVICE FOR BELT OR CHAIN, METHOD FOR MANUFACTURING HOLLOW SHAFT FOR SUCH DEVICE AND METHOD FOR ASSEMBLING SUCH DEVICE|
    FR3037115B1|2015-06-02|2018-11-23|Aktiebolaget Skf|PULLEY DEVICE FOR TILT ROLLER OR ROLLER|FR3037115B1|2015-06-02|2018-11-23|Aktiebolaget Skf|PULLEY DEVICE FOR TILT ROLLER OR ROLLER|
    DE102016125512B4|2016-12-22|2020-03-19|Manfred Bauszus|Roller for a roller door and method for assembling a roller|
    DE102017223317A1|2017-12-20|2019-06-27|Aktiebolaget Skf|Pulley device, in particular for a tensioning roller or roller|
    FR3078759B1|2018-03-06|2020-02-28|Aktiebolaget Skf|PULLEY DEVICE FOR TENSIONER OR ROLLER|
    FR3082908B1|2018-06-26|2020-06-19|Aktiebolaget Skf|PULLEY DEVICE FOR TENSIONER OR ROLLER|
    FR3098876B1|2019-07-18|2021-06-25|Skf Svenska Kullagerfab Ab|Pulley device|
    法律状态:
    2016-05-31| PLFP| Fee payment|Year of fee payment: 2 |
    2016-11-11| PLSC| Publication of the preliminary search report|Effective date: 20161111 |
    2017-05-30| PLFP| Fee payment|Year of fee payment: 3 |
    2018-05-29| PLFP| Fee payment|Year of fee payment: 4 |
    2019-05-28| PLFP| Fee payment|Year of fee payment: 5 |
    2020-05-27| PLFP| Fee payment|Year of fee payment: 6 |
    2021-05-26| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1553964A|FR3035928B1|2015-05-04|2015-05-04|PULLEY DEVICE FOR TILT ROLLER OR ROLLER|FR1553964A| FR3035928B1|2015-05-04|2015-05-04|PULLEY DEVICE FOR TILT ROLLER OR ROLLER|
    US15/143,696| US10082200B2|2015-05-04|2016-05-02|Pulley device for tensioner or idler|
    CN201610474584.5A| CN106122399B|2015-05-04|2016-05-04|Pulley device for tension wheel or idle wheel|
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