FR2696512A1 - Device for stopping rotation of fixed cylinder in vehicle - comprises cylindrical part defined by oval collar and crossing bore in support which has projection edge cooperating with collar - Google Patents
Device for stopping rotation of fixed cylinder in vehicle - comprises cylindrical part defined by oval collar and crossing bore in support which has projection edge cooperating with collar Download PDFInfo
- Publication number
- FR2696512A1 FR2696512A1 FR9211841A FR9211841A FR2696512A1 FR 2696512 A1 FR2696512 A1 FR 2696512A1 FR 9211841 A FR9211841 A FR 9211841A FR 9211841 A FR9211841 A FR 9211841A FR 2696512 A1 FR2696512 A1 FR 2696512A1
- Authority
- FR
- France
- Prior art keywords
- collar
- support
- bore
- flange
- rigid part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005242 forging Methods 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000004952 Polyamide Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 210000004417 patella Anatomy 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G21/00—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces
- B60G21/02—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected
- B60G21/04—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically
- B60G21/05—Interconnection systems for two or more resiliently-suspended wheels, e.g. for stabilising a vehicle body with respect to acceleration, deceleration or centrifugal forces permanently interconnected mechanically between wheels on the same axle but on different sides of the vehicle, i.e. the left and right wheel suspensions being interconnected
- B60G21/055—Stabiliser bars
- B60G21/0551—Mounting means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G7/00—Pivoted suspension arms; Accessories thereof
- B60G7/005—Ball joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
La présente invention concerne un dispositif d'arrêt en rotation d'une pièce rigide par rapport à un support, en particulier pour véhicule automobile. The present invention relates to a device for stopping rotation of a rigid part relative to a support, in particular for a motor vehicle.
La fixation d'une pièce rigide telle qu'une rotule à tige sur un support tel qu'une barre anti-dévers de véhicule automobile, ladite tige traversant un alésage ménagé dans le support, par vissage d'un écrou autour de l'extrémité filetée de ladite tige, nécessite le blocage en rotation préalable de la rotule par rapport au support pour permettre l'application du couple de serrage sur l'écrou. Fixing a rigid piece such as a ball joint on a support such as a roll bar of a motor vehicle, said rod passing through a bore in the support, by screwing a nut around the end threaded of said rod, requires the pre-rotation locking of the ball with respect to the support to allow the application of the tightening torque on the nut.
Ce blocage en rotation peut être réalisé de façon connue, par l'intermédiaire d'un outil de maintien coopérant avec une collerette prévue à la base de la rotule, ladite collerette pouvant à cet effet présenter une face externe à six pans ou comporter deux méplats opposés, ou bien d'un outil coopérant avec un évidement de forme appropriée prévu à l'extrémité de la tige. Or, ces solutions nécessitent l'exécution d'une opération de maintien délicate et en conséquence pas toujours réalisée correctement. This locking in rotation can be achieved in a known manner, by means of a holding tool cooperating with a collar provided at the base of the ball joint, said collar being able to this end have an outer face hexagonal or comprise two flats opposed, or a tool cooperating with a recess of appropriate shape provided at the end of the rod. However, these solutions require the execution of a delicate maintenance operation and therefore not always performed correctly.
On connaît également une autre solution, permettant d'éviter l'utilisation d'un outil, qui consiste à prévoir deux méplats opposés séparés par deux portions circulaires sur une embase ou collerette de la rotule, un des méplats coopérant avec un plat prévu sur la barre anti-dévers pour bloquer la rotation de la rotule. Or, cette dernière solution, bien que supprimant l'opération de maintien, présente un certain nombre d'inconvénients. Ces inconvénients tiennent essentiellement en ce que les tolérances à respecter relatives notamment à la largeur des plats, à la coaxialité entre la collerette et la tige, au diamètre de cette tige, à la position du plat par rapport à l'alésage et au rayon de fabrication, sont incompatibles avec le mode de fabrication des pièces, forgée à chaud pour la barre, matriçée et tournée pour la rotule.D'autre part, un manque de matière, dû au mode d'élaboration, au niveau du blocage de la collerette, favorise la rotation, et certaines conditions à respecter concernant la distance entre l'axe longitudinal de la collerette et la surface d'appui du plat précité conduisent à la nécessité d'augmenter la longueur de ladite collerette. Or, les possibilités d'augmentation des dimensions de la collerette sont limitées par la nécessité de chausser la rotule par un demi-coussinet en polyamide monté autour de la rotule après passage autour de la collerette. Another solution is known which makes it possible to avoid the use of a tool, which consists in providing two opposite flats separated by two circular portions on a base or flange of the ball joint, one of the flats cooperating with a flat provided on the anti-roll bar to block the rotation of the ball joint. However, the latter solution, although removing the holding operation, has a number of disadvantages. These disadvantages are essentially that the tolerances to be respected relating in particular to the width of the plates, the coaxiality between the flange and the rod, the diameter of the rod, the position of the plate relative to the bore and the radius of manufacturing, are incompatible with the manufacturing mode of the parts, forged hot for the bar, stamped and turned for the patella.On the other hand, a lack of material, due to the method of elaboration, at the level of the blocking of the collar , promotes rotation, and certain conditions to respect concerning the distance between the longitudinal axis of the flange and the bearing surface of the aforementioned flat lead to the need to increase the length of said flange. However, the possibilities of increasing the size of the collar are limited by the need to put the patella by a half-pad of polyamide mounted around the ball after passing around the collar.
La présente invention pallie ces inconvénients et propose un dispositif d'arrêt en rotation d'une pièce rigide par rapport à un support, en particulier pour véhicule automobile, de conception simple, de fiabilité accrue et en particulier dont les tolérances de fabrication sont compatibles avec les modes de fabrication. The present invention overcomes these disadvantages and proposes a device for stopping in rotation a rigid part with respect to a support, in particular for a motor vehicle, of simple design, of increased reliability and in particular of which the manufacturing tolerances are compatible with the modes of manufacture.
A cet effet, la présente invention a pour objet un dispositif d'arrêt en rotation d'une pièce rigide par rapport à un support, en particulier pour véhicule automobile, la pièce rigide comportant une partie cylindrique traversant un alésage ménagé dans le support, du genre dans lequel la pièce rigide comporte une collerette délimitant la partie cylindrique et située au droit d'une face du support dans laquelle débouche l'alésage, ladite collerette ayant un contour au moins partiellement non circulaire coopérant avec un bord rectiligne appartenant à un élément en saillie du support situé sur ladite face au voisinage de l'alésage, pour empêcher la rotation de la collerette solidaire de la pièce rigide autour de l'axe de l'alésage, ce dispositif étant caractérisé en ce que le contour de la collerette présente une forme ovale. For this purpose, the subject of the present invention is a device for stopping a piece rigidly rotated relative to a support, in particular for a motor vehicle, the rigid part comprising a cylindrical portion passing through a bore formed in the support, kind in which the rigid piece has a flange defining the cylindrical portion and located in line with a face of the support in which the bore opens, said flange having an at least partially non-circular contour cooperating with a straight edge belonging to an element protrusion of the support located on said face in the vicinity of the bore, to prevent the rotation of the collar integral with the rigid piece about the axis of the bore, this device being characterized in that the contour of the collar has a Oval shape.
Suivant une réalisation particulière, la pièce rigide précitée est une rotule à tige constituant ladite partie cylindrique. According to a particular embodiment, the aforementioned rigid piece is a rod ball constituting said cylindrical portion.
Suivant une autre caractéristique particulière, la collerette est brute de forgeage. According to another particular characteristic, the flange is rough forging.
Avantageusement, cette collerette présente un contour dont la longueur périphérique est sensiblement égale à la circonférence interne d'un siège réalisé en un matériau plastique et destiné à coopérer avec la rotule après mise en place par engagement sur la tige. Advantageously, this flange has a contour whose peripheral length is substantially equal to the inner circumference of a seat made of a plastic material and intended to cooperate with the ball after placement by engagement on the rod.
Mais d'autres avantages et caractéristiques de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés donnés uniquement à titre d'exemple et dans lesquels:
- la figure 1 est une vue de face d'une rotule à tige bloquée en rotation pour sa fixation sur un support, par un dispositif d'arrêt conforme à l'invention; et
- la figure 2 est une vue partielle schématique à grande échelle, illustrant une collerette formée à la base de la rotule, conformément à l'invention en traits continus, et conformément à l'art antérieur en traits interrompus.But other advantages and features of the invention will appear better in the detailed description which follows and refers to the accompanying drawings given by way of example and in which:
- Figure 1 is a front view of a ball joint locked in rotation for attachment to a support, by a stop device according to the invention; and
- Figure 2 is a schematic partial view on a large scale, illustrating a flange formed at the base of the ball, according to the invention in solid lines, and in accordance with the prior art in broken lines.
Sur la figure 1, on voit une rotule R à tige 2, constituant une pièce rigide 1, ayant été fixée sur une barre anti-dévers 5 de véhicule automobile, après blocage en rotation de la rotule R par rapport au support 5 que constitue la barre au moyen du dispositif de blocage de l'invention. La rotule R comprend une partie sphérique 3, une partie intermédiaire 3a formant embase et une tige 2 filetée à son extrémité, traversant un alésage 6 prévu dans le support 5 pour assurer la fixation sur cette barre au moyen d'un écrou 11 vissé sur ladite extrémité.Conformément à l'invention, le dispositif de blocage est constitué par une collerette 4 formée à la partie inférieure de l'embase 3a et délimitant la tige 2 de la rotule R, la collerette 4 coopérant avec un bord rectiligne, ou surface place d'appui 8, appartenant à un élément 9 du support 5 faisant saillie sur sa face 7 où débouche l'alésage 6, au voisinage de celui-ci.En se reportant plus particulièrement à la figure 2, on voit que cette collerette 4 présente une surface externe ou contour C, de forme ovale, dont les dimensions sont telles que la collerette 4 solidaire de la rotule R, est mobile en rotation de part et d'autre d'une position dans laquelle son axe longitudinal Y ou grand axe, est sensiblement parallèle au bord rectiligne 8, jusque une position dans laquelle la rotule R est bloquée en rotation par rapport au support 5, par mise en butée du contour C de la collerette contre la surface d'appui 8 (tracé C',4', Y' sur figure 2). In Figure 1, there is seen a ball R with rod 2, constituting a rigid part 1, having been fixed on a roll bar 5 of a motor vehicle, after locking in rotation of the ball R with respect to the support 5 that constitutes the bar by means of the blocking device of the invention. The ball R comprises a spherical portion 3, an intermediate portion 3a forming a base and a rod 2 threaded at its end, through a bore 6 provided in the support 5 to secure the fixing on this bar by means of a nut 11 screwed on said end.according to the invention, the locking device is constituted by a flange 4 formed at the bottom of the base 3a and defining the rod 2 of the ball R, the collar 4 cooperating with a straight edge, or surface place support 8, belonging to an element 9 of the support 5 projecting from its face 7 where the bore 6 opens out, in the vicinity thereof. Referring more particularly to FIG. 2, it can be seen that this collar 4 presents an outer surface or contour C, of oval shape, the dimensions of which are such that the flange 4 secured to the ball joint R, is rotatable on either side of a position in which its longitudinal axis Y or major axis, is substantially parallel to the rectilinear edge 8, to a position in which the ball R is locked in rotation relative to the support 5, by abutting the contour C of the flange against the bearing surface 8 (trace C ', 4', Y 'in Figure 2).
En fonctionnement, préalablement au vissage de l'écrou 11 autour de la tige 2, le blocage en rotation est réalisé par rotation de la rotule R et de la collerette 4 autour de l'axe X de l'alésage 6 jusqu'au blocage en rotation par compression de la face externe C de la collerette 4 contre la surface d'appui 8. In operation, prior to screwing the nut 11 around the rod 2, the locking in rotation is achieved by rotation of the ball R and the flange 4 about the axis X of the bore 6 to the blockage. rotation by compression of the external face C of the flange 4 against the bearing surface 8.
Ainsi, en comparaison avec le dispositif de blocage antérieur utilisant une collerette 4a, dont le contour présente deux méplats opposés 4b, 4c, on obtient grâce à l'invention, pour une même quantité de matière, une même longueur périphérique de la collerette 4, et une même tolérance sur l'écartement entre celle-ci et le bord 8, une capacité de blocage en rotation plus importante (b > a), ladite capacité correspondant à la distance entre l'axe X de l'alésage 6 et le sommet S du contour de la collerette. On remarque ainsi sur cette figure, que la distance D entre l'axe X de l'alésage 6 et la surface d'appui 8 est suffisante pour assurer le blocage en rotation de la collerette 4, mais insuffisante pour assurer le blocage d'une collerette 4a conforme à l'art antérieur.En outre, le matage de la surface d'appui 8 est beaucoup moins important avec la face bombée externe C de la collerette 4 de l'invention, qu'avec les bords anguleux des méplats (4b, 4c) de la collerette 4a des dispositifs antérieurs. Le gain de matière, comme précédemment expliqué, est non négligeable, et les tolérances de fabrication plus compatibles avec les modes de fabrication. Enfin, le montage d'un coussinet en polyamide 10 autour de la rotule par engagement sur la tige 2 est rendu plus aisé lors du passage autour de la collerette 4 grâce à la forme ovale de sa surface externe. Ce coussinet 10 peut en effet être monté par légère déformation sans risquer d'être endommagé comme dans la disposition antérieure mentionnée par frottement contre les bords des méplats.Thus, in comparison with the prior locking device using a flange 4a, the contour of which has two opposite flats 4b, 4c, one obtains, thanks to the invention, for the same quantity of material, the same peripheral length of the flange 4, and a same tolerance on the spacing between the latter and the edge 8, a greater locking capacity in rotation (b> a), said capacity corresponding to the distance between the X axis of the bore 6 and the top S of the outline of the collar. It is thus noted in this figure that the distance D between the axis X of the bore 6 and the bearing surface 8 is sufficient to ensure the rotational locking of the flange 4, but insufficient to ensure the locking of a flange 4a according to the prior art.In addition, the matting of the bearing surface 8 is much less important with the external convex face C of the flange 4 of the invention, with the angular edges of the flats (4b 4c) of the collar 4a of the previous devices. The material gain, as previously explained, is not negligible, and the manufacturing tolerances more compatible with the manufacturing methods. Finally, the mounting of a polyamide pad 10 around the ball by engagement on the rod 2 is made easier during the passage around the flange 4 through the oval shape of its outer surface. This pad 10 can indeed be mounted by slight deformation without the risk of being damaged as in the prior arrangement mentioned by friction against the edges of the flats.
On précisera que l'invention peut s'appliquer pour le blocage en rotation de toute pièce rigide s'apparentant à une rotule à tige, par rapport à un support. It will be specified that the invention can be applied for the rotational locking of any rigid piece resembling a ball joint with respect to a support.
Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple. Of course, the invention is not limited to the embodiment described and illustrated which has been given by way of example.
Au contraire, l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci sont effectuées suivant son esprit. On the contrary, the invention comprises all the technical equivalents of the means described and their combinations if they are carried out according to its spirit.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9211841A FR2696512B1 (en) | 1992-10-06 | 1992-10-06 | Device for stopping the rotation of a rigid part with respect to a support, in particular for a motor vehicle. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9211841A FR2696512B1 (en) | 1992-10-06 | 1992-10-06 | Device for stopping the rotation of a rigid part with respect to a support, in particular for a motor vehicle. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2696512A1 true FR2696512A1 (en) | 1994-04-08 |
| FR2696512B1 FR2696512B1 (en) | 1994-12-30 |
Family
ID=9434193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR9211841A Expired - Fee Related FR2696512B1 (en) | 1992-10-06 | 1992-10-06 | Device for stopping the rotation of a rigid part with respect to a support, in particular for a motor vehicle. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2696512B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0943826A1 (en) * | 1998-03-17 | 1999-09-22 | Allevard Ressorts Automobile | Device for joining a link in a bore of an antiroll bar of a vehicle |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1836949A (en) * | 1929-05-02 | 1931-12-15 | Hercules Motors Corp | Bolt for connecting rods and the like |
| US3149855A (en) * | 1960-07-23 | 1964-09-22 | Gen Motors Corp | Independent wheel suspension system for motor road vehicles |
| DE1292450B (en) * | 1962-06-27 | 1969-04-10 | Bayerische Motoren Werke Ag | Screw connection with a safeguard against turning the screw head or the screw nut |
| DE3005825A1 (en) * | 1980-02-16 | 1981-09-03 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Plastics component screw connection - uses screw with non-round flange engaging with mating portion of one component |
| JPS6328710A (en) * | 1986-07-22 | 1988-02-06 | Musashi Seimitsu Ind Co Ltd | Stabilizer joint |
| JPS63135609A (en) * | 1986-11-25 | 1988-06-08 | Musashi Seimitsu Ind Co Ltd | Connecting structure between ball joint and stabilizer |
-
1992
- 1992-10-06 FR FR9211841A patent/FR2696512B1/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1836949A (en) * | 1929-05-02 | 1931-12-15 | Hercules Motors Corp | Bolt for connecting rods and the like |
| US3149855A (en) * | 1960-07-23 | 1964-09-22 | Gen Motors Corp | Independent wheel suspension system for motor road vehicles |
| DE1292450B (en) * | 1962-06-27 | 1969-04-10 | Bayerische Motoren Werke Ag | Screw connection with a safeguard against turning the screw head or the screw nut |
| DE3005825A1 (en) * | 1980-02-16 | 1981-09-03 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Plastics component screw connection - uses screw with non-round flange engaging with mating portion of one component |
| JPS6328710A (en) * | 1986-07-22 | 1988-02-06 | Musashi Seimitsu Ind Co Ltd | Stabilizer joint |
| JPS63135609A (en) * | 1986-11-25 | 1988-06-08 | Musashi Seimitsu Ind Co Ltd | Connecting structure between ball joint and stabilizer |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 12, no. 236 (M-715)(3085) 6 Juillet 1988 & JP-A-63 028 710 ( MUSASHI SEIMITSU ) 6 Février 1988 * |
| PATENT ABSTRACTS OF JAPAN vol. 12, no. 384 (M-753)13 Octobre 1988 & JP-A-63 135 609 ( MUSASHI SEIMITSU ) 8 Juin 1988 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0943826A1 (en) * | 1998-03-17 | 1999-09-22 | Allevard Ressorts Automobile | Device for joining a link in a bore of an antiroll bar of a vehicle |
| FR2776241A1 (en) * | 1998-03-17 | 1999-09-24 | Allevard Ressorts Automobile | DEVICE FOR ASSEMBLING A CONNECTING ROD IN A BORE OF A VEHICLE ANTI-TIP BAR |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2696512B1 (en) | 1994-12-30 |
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| ST | Notification of lapse |