FR2517388A1 - Adjustable rotating ball joint - has helical adjusting groove in shank of spherical end for clamping bolt - Google Patents

Adjustable rotating ball joint - has helical adjusting groove in shank of spherical end for clamping bolt Download PDF

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Publication number
FR2517388A1
FR2517388A1 FR8122212A FR8122212A FR2517388A1 FR 2517388 A1 FR2517388 A1 FR 2517388A1 FR 8122212 A FR8122212 A FR 8122212A FR 8122212 A FR8122212 A FR 8122212A FR 2517388 A1 FR2517388 A1 FR 2517388A1
Authority
FR
France
Prior art keywords
ball joint
ball
groove
wheel pivot
joint according
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.)
Withdrawn
Application number
FR8122212A
Other languages
French (fr)
Inventor
Jean Penot
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automobiles Citroen SA
Original Assignee
Automobiles Citroen SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Automobiles Citroen SA filed Critical Automobiles Citroen SA
Priority to FR8122212A priority Critical patent/FR2517388A1/en
Publication of FR2517388A1 publication Critical patent/FR2517388A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/18—Steering knuckles; King pins
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0604—Construction of the male part
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0695—Mounting of ball-joints, e.g. fixing them to a connecting rod
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/20—Land vehicles
    • F16C2326/24—Steering systems, e.g. steering rods or columns

Abstract

The joint consists of a spherical end (1) on a cylindrical shank (3). The shank fits into a split bush (5) of the mounting bracket (2) and is clamped by the bush clamping bolt (6). The shank has a helical groove (7) around it's periphery. The clamping bolt locates in the groove. When the bolt is slack, the shank can be rotated to raise and lower the ball end to the desired position, after which the clamping bolt is tightened.

Description

Rotule de pivot réglable
L'invention concerne un dispositif de réglage en translation pour rotule de pivot de r-oue directrice de véhicule.Adjustable pivot ball joint
The invention relates to a device for adjusting the translation for a pivot ball joint of a steering wheel of a vehicle.

Bien que les géométries d'épures de suspension et de direction soient conçues pour répondre avec précision aux lois des débattements garantissant la meilleure i;tabiiité de trajectoire,les tolérances de fabrication, les jeux d' assemblages et le cumul des chaines de cotes ne respectent que rarement les tracés, un certain décalage dimentionnel étant observé entre la valeur des empilages théoriques prévus et celles des ensembles réalisés. Cette absence de conformité, bien que de faible importance, peut, à i'occasion, s'avérer prejudiciable aux qualités routières et dans certains cas précis bien spécifiques (records, compétitions) nuire à la sécurité, voire modifier les résultats d'un palmarès. Although the geometries of suspension and direction drawings are designed to respond precisely to the laws of deflections guaranteeing the best i; tabiiity of trajectory, manufacturing tolerances, assembly play and the cumulation of dimension chains do not respect only rarely the plots, a certain dimensional difference being observed between the value of the theoretical stackings planned and those of the sets produced. This lack of conformity, although of minor importance, can, on occasion, prove to be detrimental to the road qualities and in certain specific very specific cases (records, competitions) harm safety, even modify the results of a prize list. .

L'invention entend pallier les défauts cités en reconstituant autant que faire ce peut, la géométrie de l'épure théorique concernée au moyen d'un réglage pouvant etre effectué au niveau du corps de rotule de pivot, moyen caractérisé en ce que ladite rotule, munie d'un corps cylindrique comportant une gorge périphérique oblique et disposée à l'intérieur d'un alésage fendu ménagé sur la chape du pivot, coopère avec un axe sécant traversant adite chape au niveau d'oreilles latérales de serrage, Jedit axe occupant une section de ladite gorge au droit de la zone de sécante de telle sorte que le cumul des effets d'appui fixe e: de rampe réciproques entrai- nent un mouvement de translation du corps de rotule à l'intérieur de l'alésage de la chape quand le corps est sollicité en rotation. The invention intends to overcome the aforementioned defects by reconstructing as much as possible the geometry of the theoretical sketch concerned by means of an adjustment that can be made at the level of the pivot ball joint, means characterized in that said ball joint, provided with a cylindrical body comprising an oblique peripheral groove and disposed inside a split bore formed on the clevis of the pivot, cooperates with a secant axis passing through said clevis at the level of lateral clamping ears, Jedit axis occupying a section of said groove in line with the secant area so that the cumulative effects of fixed support e: reciprocal ramp cause a translational movement of the ball body inside the clevis bore when the body is rotated.

Après serrage, l'immobilisation en rotation de ladite rotule p & frettage périphérique, et son verrouillage en translation axiale par effet de clavetage sont assures.  After tightening, the immobilization in rotation of said ball joint p & peripheral hooping, and its locking in axial translation by keying effect are ensured.

i'ini;ention sera mieux comprise et d'autres détails apparaîtront å la lecture de la description qui va suivre et à l'examen des figures faisant l'objet de la planche unique annexee à ladite description et sur laquelle
la figure 1 est une vue en coupe partielle de l'assemblage rotule/ pivot suivant un exemple de réalisation conforme à l'esprit de l'invention, pour une position haute donnée de la rotule,
la figure 2 est une vue plus iocalisée de la meme coupe partielle en une position basse de ladite rotule,
la figure 3 est une vue suivant F de la figure 2.i'ini; ention will be better understood and other details will appear on reading the description which follows and on examining the figures forming the subject of the single plate annexed to said description and on which
FIG. 1 is a partial section view of the ball joint / pivot assembly according to an exemplary embodiment in accordance with the spirit of the invention, for a given high position of the ball joint,
FIG. 2 is a more localized view of the same partial section in a low position of said ball joint,
FIG. 3 is a view along F of FIG. 2.

Dans l'exemple de réalisation sélectionné, une rotule 1 disposée en région inférieure d'un pivot de roue 2, comporte un corps cylindrique 3 engagé à I 'intérieur d'un aiésage correspondant 4 ménagé au niveau d'une chape à oreilles latérales 5 traversée par un axe de blocage 6, le corps de rotule 3 se trcuve, pour sa part, comporter une gorge circulaire périphérique oblique 7 à l'intérieur de laquelle vient s'engager de façon complémentaire une partie de la section de l'axe de blocage 6 tandis qu'une empreinte polygonale 8 est réalisée en extrémité dudit corps 3 de la rotule 1 opposée à celle de ladite rotule. In the selected embodiment, a ball joint 1 disposed in the lower region of a wheel pivot 2, comprises a cylindrical body 3 engaged inside a corresponding fitting 4 formed at the level of a yoke with lateral ears 5 crossed by a locking pin 6, the ball joint body 3 is, for its part, comprising an oblique peripheral circular groove 7 inside which comes to engage in a complementary manner a part of the section of the axis of blocking 6 while a polygonal imprint 8 is produced at the end of said body 3 of the ball joint 1 opposite to that of said ball joint.

L'axe de blocage 6 étant desserré, le corps cylindrique 3 de rotule l est en mesure, par construction, de pouvoir être tourné à volonté, par exemple, sous une action d'entrainement appliquée au niveau de l'empreinte polygonale 8 existante en extrémité du corps 3 de rotule 1. The locking pin 6 being loosened, the cylindrical body 3 of the ball joint 1 is able, by construction, to be able to be rotated at will, for example, under a driving action applied at the level of the polygonal imprint 8 existing in end of the body 3 of the ball joint 1.

Il va de soi que,de façon connue, une telle action se révèle génératrice d'un effet de translation du corps 3 à l'intérieur de l'alésage 4 pratiqué sur la chape inférieure 5 ; I'axe de blocage 6 se comporte à l'instar d'urie butée fixe arc-boutée sur les génératrices obliques de la gorge 7 jouant un rôle de plan incliné - en conséquence une rotation quelconque appliquée au corps de rotule aura pour effet d'entrafner le déplacement en translation de ce dernier à l'intérieur de l'alésage 4, le sens dudit déplacement étant fonction du sens de rotation imposé au corps de rotule, et son ampleur tributaire de l'lncidence et de la longueur développée de la rampe que la gorge 7 matérialise. It goes without saying that, in known manner, such an action proves to generate a translational effect of the body 3 inside the bore 4 formed on the lower yoke 5; The locking pin 6 behaves like a urea fixed stop braced on the oblique generatrices of the groove 7 playing a role of inclined plane - consequently any rotation applied to the ball body will have the effect of entrain the translational movement of the latter inside the bore 4, the direction of said displacement being a function of the direction of rotation imposed on the ball body, and its magnitude dependent on the incidence and the developed length of the ramp that groove 7 materializes.

Ainsi, par exemple, dans le cas de figure choisi, une gorge annulaire oblique se révèle être une solution conciliant les exigences de la fonction (faible dép,acement requis de le simplicité d'usinage et de l'économie, une position haute de rotule étant acquise quand la gorge 7 prend appui en zone basse de son profit sur l'axe de blocage 5 (fig.1) la position basse correspondant au contact de la zone haute dudit profil avec l'axe 6, (fig.24. Thus, for example, in the chosen case, an oblique annular groove proves to be a solution reconciling the requirements of the function (low dep, acement required for simplicity of machining and economy, a high position of ball joint being acquired when the groove 7 is supported in the lower zone of its profit on the locking axis 5 (fig. 1) the lower position corresponding to the contact of the upper zone of said profile with the axis 6, (fig. 24.

D'autres solutions pouvent être envisagées à partir de cette base de réalisation i ainsi, la valeur du réglage a de l'exemple considéré pourraitelle être considérablement acroue par la réalisation d'une gorge spirale de longeur appropriée et c'incidence plus ou moins marquée ; une réduction d'incidence et ou la limitation de le gorge 7 à la valeur d'un segment localisé pouvant, au contraire, réduire l'ampleur dudit réglage 4. Dans le même esprit les sections complémentaires de gorge et d'axe pourraient être polygonales. Other solutions could be envisaged from this basis of realization i thus, the value of the setting a of the example considered could be considerably increased by the realization of a spiral groove of appropriate length and this more or less marked incidence ; a reduction in incidence and or the limitation of the groove 7 to the value of a localized segment which can, on the contrary, reduce the extent of said adjustment 4. In the same spirit, the complementary groove and axis sections could be polygonal .

Il va de soi que l'inventione saurait être limitée au mode de réalisation décrit dont elle en couvre, en effet, toutes les variantes.  It goes without saying that the invention cannot be limited to the embodiment described, of which it covers all variants.

Claims (4)

R E V E N D I C A T I O N S 1. poque de pivot de roue direction pour véhicule, caractérisée en ce que, munie d'un corps cyiindr que comportant une gorge périphéroque oblique, et disposée à l'intérieur d'un elésage fondu ménagé sur la chape du pivot, elle coopère avec un ase sécant traversant ladite chape au niveau d'oreilles latérales de serrage, legit axe occupant une section de ladite gorge au droit de la zone de sécanceCLAIMS 1. steering wheel pivot poque for vehicle, characterized in that, provided with a cylindrical body that having an oblique peripheral groove, and disposed inside a molten bore formed on the clevis of the pivot, it cooperates with a secant ase crossing said clevis at the level of lateral tightening ears, legit axis occupying a section of said groove in line with the safety zone 2. Rotule de pivot de roue suivent , revendication , caracté- risée en ce que la gorge se referme sur elle-même en intéressant la rotalité de ia périphérie du corps de rotule. 2. Wheel pivot joint follow, claim, characterized in that the groove closes on itself by interesting the totality of ia periphery of the ball body. o. Rotule de pivot de roue suivant la r---ndication 1, caracté- n ce que gorge n'intérese qu'une fraction de la périphérie du corps de rotule. o. Wheel pivot joint according to specification 1, characteristic that the groove is only a fraction of the periphery of the ball body. 4. Rotule de pivot de roue suivant la revendication 1, caractérisée en ce que la gorge se développe au:our du corps sous la forme d'un segment en spirale. 4. Wheel pivot ball joint according to claim 1, characterized in that the groove develops at the center of the body in the form of a spiral segment. 5. Rotule de pivot de roue suivant l'une que!conque des revendica-tions précédentes, caractérisée en ce que lés sections complémentaires de la gorge du corps de rotule et de l'axe transversal sécant sont circulaires. 5. Wheel pivot ball joint according to one of the preceding claims, characterized in that the complementary sections of the groove of the ball body and of the intersecting transverse axis are circular. 5. Rotule de pivot de roue suivant l'une quelconque des revendications 1, 2, 3, caractérisée en ce que les sections complémentaires de ;a gorge du corps de rotule et de l'axe transverssl sécart sont polygonales. 5. Wheel pivot ball joint according to any one of claims 1, 2, 3, characterized in that the complementary sections of; a groove of the ball joint body and the transversesl secart axis are polygonal. 7. Rotule de pivot de roue suivant !'une quelcnnque des revendications précédentes, caractérisée en ce cie le moyen de préhension conçu pour assurer l'entraînement en rotation du corps de rotule est une ernpreinte polygonale réalisée à !'intérieur du volume du corps de rotule et à 7. Wheel pivot ball joint according to one of the preceding claims, characterized in that the gripping means designed to ensure the rotational drive of the ball joint body is a polygonal impression made inside the volume of the body of the ball joint. ball and socket extrémité opposée de ladite rotule. opposite end of said ball joint. a. Rotule de pivot de roue suivant les revendications 1, 9, 3, 4, 5, 5, caractérisée en ce que le moyen de préhension conçu pour assurer l'entraînement en rotation du corps de rotule, est une saillie polygonale disposée à l'extrémité du corps de rotule, opposée de celle comportant ladite rotu!e.  at. Wheel pivot ball joint according to claims 1, 9, 3, 4, 5, 5, characterized in that the gripping means designed to ensure the rotation of the ball joint body is a polygonal projection arranged at the end of the ball body, opposite to that comprising said ball!
FR8122212A 1981-11-27 1981-11-27 Adjustable rotating ball joint - has helical adjusting groove in shank of spherical end for clamping bolt Withdrawn FR2517388A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8122212A FR2517388A1 (en) 1981-11-27 1981-11-27 Adjustable rotating ball joint - has helical adjusting groove in shank of spherical end for clamping bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8122212A FR2517388A1 (en) 1981-11-27 1981-11-27 Adjustable rotating ball joint - has helical adjusting groove in shank of spherical end for clamping bolt

Publications (1)

Publication Number Publication Date
FR2517388A1 true FR2517388A1 (en) 1983-06-03

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FR8122212A Withdrawn FR2517388A1 (en) 1981-11-27 1981-11-27 Adjustable rotating ball joint - has helical adjusting groove in shank of spherical end for clamping bolt

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0352945A2 (en) * 1988-07-29 1990-01-31 Ford Motor Company Limited A ball study assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524442A (en) * 1922-04-10 1925-01-27 Robert H Lehew Adjustable bearing
US1930676A (en) * 1931-08-01 1933-10-17 Budd Wheel Co Adjustable tie rod connection
DE2900042A1 (en) * 1978-05-16 1979-11-22 Toyota Motor Co Ltd BALL JOINT ARRANGEMENT FOR MOTOR VEHICLE WHEEL SUSPENSION

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1524442A (en) * 1922-04-10 1925-01-27 Robert H Lehew Adjustable bearing
US1930676A (en) * 1931-08-01 1933-10-17 Budd Wheel Co Adjustable tie rod connection
DE2900042A1 (en) * 1978-05-16 1979-11-22 Toyota Motor Co Ltd BALL JOINT ARRANGEMENT FOR MOTOR VEHICLE WHEEL SUSPENSION

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0352945A2 (en) * 1988-07-29 1990-01-31 Ford Motor Company Limited A ball study assembly
EP0352945A3 (en) * 1988-07-29 1991-08-07 Ford Motor Company Limited A ball study assembly

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