• 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:
    The suspension stop device comprises an upper support cover 14 adapted to come into contact with an upper support seat outside the device, a lower support cover 16 and at least one bearing 18 disposed between said covers. The upper support cover 14 comprises a latching means 42 adapted to cooperate with the upper support seat for axial connection with said support seat.
    公开号:FR3032913A1
    申请号:FR1551620
    申请日:2015-02-25
    公开日:2016-08-26
    发明作者:Jean-Marc Soudee；Christophe Houdayer；Desire Vidot；Charles Bedeau
    申请人:SKF AB；
    IPC主号:
    专利说明:

    [0001] The present invention relates to the field of suspension stop devices used in particular for motor vehicles in the suspension struts of the steering wheels. Such a suspension stop device generally comprises an axial stop bearing and upper and lower covers forming a housing for the rings of the bearing and for ensuring the interface between said rings and the neighboring elements. Preferably, the bearing is of the angular contact type to take both the radial forces and the axial forces exerted on the device. The stop device is generally disposed in the upper part of the suspension strut between a suspension spring and an upper support seat secured to the vehicle body. The suspension spring is mounted around a damper piston rod whose end is connected to the vehicle body. The suspension spring, of the helical spring type, axially bears directly or indirectly on the lower cover of the suspension stop device. The abutment device makes it possible to transmit axial and radial forces between the suspension spring and the vehicle body while allowing a relative rotational movement between the lower cover and the upper support seat resulting from a deflection of the steering wheels of the vehicle. vehicle and / or compression of the suspension spring. Generally, the upper cover of the stop device comprises on its outer surface bosses radially bearing against the upper support seat. These bosses allow the fitting and centering by radial contact of the stop device relative to the support seat. Before mounting in the strut of the vehicle the assembly formed by the stop device and the upper bearing seat, the radial friction contact between the bosses of the top cover 3032913 2 and the support seat provides restraint axial axis of said seat and the device. However, during the handling, transport and assembly of this assembly, there is a risk of separation of the abutment device and the upper support seat. The present invention aims to remedy this disadvantage. In one embodiment, the suspension stop device comprises an upper support cap adapted to engage an upper support seat which is external to the device, a lower support cowl and at least one bearing disposed between said hoods. The upper support cover comprises a latching means adapted to cooperate with the upper support seat for axial connection with said support seat. The unitary assembly formed by the suspension stop device and the upper support seat can thus be handled, transported and mounted without risk of separation of the device and the seat. Preferably, the latching means of the upper support cap is made in one piece with a body of said cover.
    [0002] Advantageously, the latching means of the upper bearing cover comprises a lower radial abutment surface adapted to come axially facing an upper radial abutment surface of the upper bearing seat. The latching means of the upper bearing cap may be disposed on an outer surface of the body of said hood or on a bore of said body. In one embodiment, the upper support cap latching means comprises a plurality of circumferentially spaced apart hooks radially extending from the body of said hood. Alternatively, the latching means of the upper support cap may comprise a single annular hook and extending radially from said body. In another embodiment, the upper support cover comprises a plurality of tabs extending axially from the body of said hood 3032913 3 and provided with radially extending hooks and forming the latching means. Preferably, the upper support cap further comprises bosses able to interfere radially with the upper support seat 5. Preferably, the upper support cap comprises an axial retaining means cooperating with a complementary axial retaining means of the lower support cap. The bosses and the axial retaining means are distinct from the latching means of the support cap.
    [0003] In one embodiment, the bearing is provided with a first ring and a second ring. The upper support cap is mounted in contact with one of the rings and the lower support cap is mounted in contact with the other ring. The bearing may comprise at least one row of rolling elements arranged between the first and second rings. The invention also relates to an assembly comprising a suspension stop device as defined above and an upper support seat. Said assembly can for example be integrated into the strut of a motor vehicle.
    [0004] The present invention will be better understood on studying the detailed description of embodiments taken as non-limiting examples and illustrated by the appended drawings, in which: FIG. 1 is an axial sectional view of a suspension stop device according to a first embodiment of the invention, - Figure 2 is a perspective view of the stop device of Figure 1, and - Figure 3 is an axial sectional view of a device. suspension stop according to a second embodiment of the invention. In FIG. 1, a suspension stop device, referenced as a whole, is intended to be mounted between an upper support seat 12 coming into contact with a chassis element of a motor vehicle and a suspension spring (FIG. not shown) 3032913 4 of helical type. In Figure 1, the device 10 is shown in a supposed horizontal position. The device 10, with axis 10a, comprises an upper support cowl 14 bearing against the upper support seat 12, a lower support cowl 16 forming a support means for the suspension spring, and a bearing 18 rolling arranged axially between said covers and forming axial stop. As will be described in more detail below, the upper support cover 14 comprises means for axially securing the device 10 relative to the support seat 12. The bearing 18, with axis 10a, comprises a ring upper 20 and a lower ring 22 between which is housed a row of rolling elements 24 here made in the form of balls. A cage (not shown) is also provided to allow the maintenance of a regular circumferential spacing between the rolling elements 24. The rolling elements 24 are arranged between rolling tracks formed by the upper and lower rings 22. Advantageously, these rings can be obtained from the same side of sheet metal by cutting and stamping.
    [0005] The lower support cap 16, of axis 10a, is made in one piece by molding a rigid synthetic material, for example polyamide. The synthetic material can be filled with glass fibers. The support cover 16 comprises an annular body 26 provided with an annular platelike radial portion 28 and an annular axial skirt 29 extending a small diameter edge of the radial portion 28 and extending axially to the opposite the upper support cover 14. The radial portion 28 comprises an annular lower radial surface 28a delimiting a bearing surface for the upper end turn of the suspension spring, and an upper toroidal surface 28b in contact with the lower ring 22 of the bearing and of complementary shape. The lower support cap 16 further includes a plurality of inner hooks 30 in the bore of the body 26 and extending radially inwardly. The hooks 30 extend radially inward towards the upper support cap 14. In the exemplary embodiment illustrated, the hooks 30 are arranged in the vicinity of the upper end of the support cap 16. The hooks 30 are here spaced relative to each other in the circumferential direction, preferably in a regular manner. Alternatively, the support cover 16 may comprise an annular internal hook, i.e. continuous in the circumferential direction. The upper support cowl 14, of axis 10a, is made in one piece by molding a rigid synthetic material. The bearing cover 14 is provided with an annular body 32 comprising an annular radial portion 34 and an annular inner axial skirt 36 axially extending downwardly a small diameter edge of said radial portion and extending into the bore the lower support cover 16. The radial portion 34 comprises an upper radial support surface 34a 15 annular axially mounted in contact against the upper support seat 12. The body 32 also comprises an annular outer axial skirt 38 extending axially downwardly a large diameter edge of the radial portion 34 and radially surrounding the lower support cap 16. The axial skirt 38 here has a stepped shape. The axial skirt 38 defines a lower toroidal surface 38a in contact with the upper ring 20 of the bearing and of complementary shape. The upper support cover 14 comprises a plurality of internal hooks 40 provided on the inner skirt 36 and extending radially outwardly. The hooks 40 extend from the outer surface of the inner skirt 36 radially outwardly toward the lower support cap 16. The hooks 40 are arranged axially below the hooks 30 of the lower support cowl and have an outside diameter greater than the inside diameter of the hooks 30 so as to be able to interfere diametrically with said hooks 30 in the case of relative axial displacement of the support cowl 16 and the support cap 14. The inner hooks 40 of the upper support cap 14 form an axial retaining means 3032913 6 cooperating with a complementary axial retaining means of the lower support cap 16 formed by the inner hooks 30. In the exemplary embodiment illustrated, the hooks 40 are spaced relative to one another in the circumferential direction, preferably in a regular manner. Alternatively, the upper support cover 14 may comprise an annular internal hook, i.e. continuous in the circumferential direction. Alternatively, it may still be possible to provide one or hooks formed in the bore of the outer skirt 38 of the bearing cover 14, for example in the vicinity of its free lower end, extending radially inwardly. and cooperating with one or the corresponding hooks provided on the outer surface of the body 26 of the lower support cap. In order to ensure the axial solidarity of the upper support cap 14 of the device with the support seat 12, the cover comprises a plurality of external hooks 42 extending radially outwardly from the body 32. In illustrated embodiment, the hooks 42 extend from the outer surface of the body 32, and more precisely the outer surface of the radial portion 34. The hooks 42 extend radially outwardly towards the outer surface. upper support seat 12 without radial contact between them. As shown more clearly in Figure 2, the hooks 42 are here spaced relative to each other in the circumferential direction in a regular manner. A slot (unreferenced) of small size is provided between each pair of successive hooks 42. Alternatively, the upper support cover 14 may comprise an annular external hook, i.e. continuous in the circumferential direction el. The upper support cap 14 further comprises a plurality of bosses 44 formed on the outer surface of the outer axial skirt 38 and spaced here relative to each other circumferentially in a regular manner. The bosses 44 are radially in contact against the upper support seat 12. In the exemplary embodiment illustrated, the bosses 44 are located axially below the outer hooks 42. The hooks 42 and the 3032913 7 bosses 44 are made in one piece with the body 32 of the support cover. Referring again to FIG. 1, the bearing seat 12 comprises an annular radial portion 46 axially bearing against the bearing surface 34a of the upper bearing cowl, and an annular outer axial skirt 48 extending axially towards down a large diameter edge of the radial portion 46 and radially surrounding part of the upper support cover 14. The skirt 48 is centered on the outer axial skirt 38 of the bearing cover and radially interferes with the bosses 44 (FIG. 2) of said cover. In an alternative embodiment, the bosses of the support cover could be provided on the bore of the inner skirt 36 and come radially in contact against an inner skirt of the support seat 12. The support seat 12 further comprises a a plurality of inner hooks 50 formed in the bore of the skirt 48 and extending radially inwardly. The hooks 50 extend radially inwards toward the upper support cap 14 without radial contact therebetween. The hooks 50 are arranged axially below the hooks 42 of the upper bearing cover and have an inside diameter less than the outside diameter of the hooks 42 so as to be able to interfere diametrically with said hooks 42 in the case of relative axial displacement of the cover. 14 and the support seat 12. Each hook 42 of the support cover comprises a lower radial abutment surface 42a axially opposite an upper radial abutment surface 50a of the associated hook 50 of the support seat. . In the case of relative axial displacement of the bearing cap 14 and the bearing seat 12, the axial retention of these two elements is achieved by axial contact between the hooks 50 and 42, and more precisely by axial contact between the abutment surfaces. 42a and 50a.
    [0006] The outer hooks 42 of the upper support cowl 14 form a latching means cooperating with a complementary latching means of the support seat 12 formed by the internal hooks 50. In the exemplary embodiment illustrated, the hooks 50 of the support seat are spaced relative to each other in the circumferential direction, preferably in a regular manner. Alternatively, the upper support seat 12 may comprise an annular internal hook, i.e. continuous in the circumferential direction. The device 10 and the support seat 12 form a unitary unit that can be stored, transported and then mounted in the strut of the vehicle with a risk of low axial separation. The axial attachment of the upper support cover 14 and the support seat 12 is effected effectively by latching or hooking means which are made of a rigid material. The mounting of the device 10 on the support seat 12 is effected by simple axial thrust without prior angular indexing. In the exemplary embodiment illustrated, the hooks 42 of the upper support cover are arranged on the radial portion 34 of said cover. Alternatively, the hooks 42 may be provided in another area 15 of the outer surface of the body 32 of the support cap, for example on the outer skirt 38. In another variant embodiment, it is still possible to provide an upper support cowl comprising an outer skirt extending axially upwards and provided with external hooks extending radially inwards and cooperating with complementary hooks. provided on the outer surface of the outer skirt 48 of the support seat. Alternatively, it may still be possible to provide an upper support cap comprising internal hooks extending radially inwardly from the bore of the body 32 and provided to cooperate with the internal hooks 25 of the support seat 12, for example provided on an inner axial skirt of said seat. The exemplary embodiment illustrated in FIG. 3, in which the identical elements bear the same references, differs from the first example in that the upper support cover 14 comprises a plurality of groups of lugs 60 extending axially from the upper bearing surface 34a of said cover and each comprising at its free end a hook 62 extending radially. In the figure, only one group of legs 60 is visible. The bearing cover 14 may for example comprise three groups of tabs 60 regularly spaced relative to each other in the circumferential direction. It is possible to provide a different number of groups of legs, for example one, two, or four. In the exemplary embodiment illustrated, each group comprises two tabs 60. The tabs 60 and the hooks 62 are made in one piece with the body 32 of the support cap. The tabs 60 of each group extend inside a through recess 64 formed in the thickness of the radial portion 46 of the upper support cap. The recess 64 has a stepped shape and delimits an upper radial abutment surface 64a axially facing a lower radial abutment surface 62a of each associated hook 62. In case of relative axial displacement of the bearing cover 14 and the bearing seat 12, the axial retention of these two elements is obtained by axial contact between the hooks 62 and the abutment surface 64a of the associated recess. The hooks 62 of the top support cowl 14 form a latching means cooperating with the support seat 12 to ensure their relative axial solidarity. In the illustrated embodiment, the tabs 60 extend from the upper support surface 34a of the support cover. Alternatively, it may be possible to provide tabs extending from a radial surface of the outer skirt 38 of the bearing cap. Thanks to the invention, there is provided a stop device comprising an upper bearing cover provided with a detent means adapted to interfere axially with the support seat to ensure relative axial retention of said seat with the device. .
    [0007] The invention has been illustrated on the basis of a suspension stop device comprising a rolling bearing provided with a first ring, a second 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 comprise radial grooves capable of being 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 (10)
    [0001]
    REVENDICATIONS1. Suspension stop device comprising an upper support cap (14) adapted to come into contact with an upper support seat outside the device, a lower support cover (16) and at least one bearing (18) arranged between said hoods, characterized in that the upper support cap (14) comprises a latching means (42; 62) adapted to cooperate with the upper support seat for axial connection with said support seat.
    [0002]
    2. Device according to claim 1, wherein the latching means (42; 62) of the upper support cap is formed integrally with a body (32) of said cover.
    [0003]
    3. Device according to claim 1 or 2, wherein the latching means (42; 62) of the upper support cap comprises a lower abutment surface (42a; 62a) able to come axially facing a surface. upper radial abutment of the upper support seat.
    [0004]
    4. Device according to any one of the preceding claims, wherein the latching means (42) of the upper support cap is disposed on an outer surface of a body (32) of said cover or on a bore of said body.
    [0005]
    Apparatus according to any one of the preceding claims, wherein the latching means (42) of the upper bearing cover comprises a plurality of hooks spaced relative to each other in the circumferential direction and extending radially at a distance from one another. from a body (32) of said hood.
    [0006]
    6. Device according to any one of claims 1 to 4, wherein the latching means (42) of the upper bearing cover comprises a single annular hook and extending radially from a body (32) of said cover.
    [0007]
    7. Device according to any one of claims 1 to 3, wherein the upper support cover (14) comprises a plurality of tabs (60) extending axially from a body (32) of said cover 3032913 11 and provided with hooks (62) extending radially and forming the detent means.
    [0008]
    8. Device according to any one of the preceding claims, wherein the upper support cap (14) comprises bosses (44) able to interfere radially with the upper support seat.
    [0009]
    9. Device according to any one of the preceding claims, wherein the upper support cap (14) comprises an axial retaining means (40) cooperating with an axial retaining means (30) complementary to the support cap (16). ) inferior.
    [0010]
    An assembly comprising a suspension stop device according to any one of the preceding claims and an upper support seat.
    类似技术:
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    FR2948066A1|2011-01-21|SUSPENSION STOP DEVICE AND FORCE LEG.
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    FR3004770A1|2014-10-24|BEARING BEARING DEVICE FOR STEERING COLUMN
    FR2949523A1|2011-03-04|BEARING BEARING DEVICE FOR STEERING COLUMN
    FR2901737A1|2007-12-07|SUSPENSION STOPPER DEVICE AND FORCE LEG
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    FR3004769A1|2014-10-24|BEARING BEARING DEVICE FOR STEERING COLUMN
    EP0561704B1|1997-04-23|Axial rolling bearing for a vehicle suspension and its mounting method
    EP1264113B1|2004-05-12|Antifriction bearing for motor vehicle steering column
    FR2866401A1|2005-08-19|Stop bumper for use in MacPherson strut, has upper support cover with low thickness apron including hooks cooperating with lower retainer, and having lugs placed on bore of apron and axially at level of retainer
    FR2966087A1|2012-04-20|Bump stop device for use in MacPherson strut in steerable wheel of motor vehicle, has upper cap and lower cap, and set of self-lubricating sliding washers that is axially stacked between upper cap and lower cap
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    同族专利:
    公开号 | 公开日
    US20160243915A1|2016-08-25|
    FR3032913B1|2018-08-10|
    US9925839B2|2018-03-27|
    CN105966184A|2016-09-28|
    CN105966184B|2020-12-22|
    引用文献:
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    DE102012215912A1|2012-09-07|2014-03-13|Schaeffler Technologies AG & Co. KG|Suspension strut bearing for use in vehicle i.e. motor car, has axial bearing arranged between cap and guide ring, and damping element arranged on surface of cap for influencing shock attenuates, where cap is provided with seal|DE102012111471B3|2012-11-27|2014-05-28|Thyssen Krupp Bilstein Gmbh|Head bearing assembly for connecting a shock absorber to a vehicle body|
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    法律状态:
    2016-02-29| PLFP| Fee payment|Year of fee payment: 2 |
    2016-08-26| PLSC| Publication of the preliminary search report|Effective date: 20160826 |
    2017-02-24| PLFP| Fee payment|Year of fee payment: 3 |
    2018-02-27| PLFP| Fee payment|Year of fee payment: 4 |
    2020-02-25| PLFP| Fee payment|Year of fee payment: 6 |
    2021-02-23| PLFP| Fee payment|Year of fee payment: 7 |
    2022-02-24| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1551620|2015-02-25|
    FR1551620A|FR3032913B1|2015-02-25|2015-02-25|SUSPENSION STOP DEVICE WITH CLAMPING MEANS|FR1551620A| FR3032913B1|2015-02-25|2015-02-25|SUSPENSION STOP DEVICE WITH CLAMPING MEANS|
    US15/052,065| US9925839B2|2015-02-25|2016-02-24|Suspension bump stop device with latching means|
    CN201610223537.3A| CN105966184B|2015-02-25|2016-02-24|Suspension bump guard with locking device|
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