WO2008040279A1 - Articulation à rotule comportant une coquille sphérique présentant des fentes longitudinales et transversales - Google Patents

Articulation à rotule comportant une coquille sphérique présentant des fentes longitudinales et transversales Download PDF

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Publication number
WO2008040279A1
WO2008040279A1 PCT/DE2007/001584 DE2007001584W WO2008040279A1 WO 2008040279 A1 WO2008040279 A1 WO 2008040279A1 DE 2007001584 W DE2007001584 W DE 2007001584W WO 2008040279 A1 WO2008040279 A1 WO 2008040279A1
Authority
WO
WIPO (PCT)
Prior art keywords
ball
slots
ball joint
longitudinal slots
longitudinal
Prior art date
Application number
PCT/DE2007/001584
Other languages
German (de)
English (en)
Inventor
Frank Budde
Martin Rechtien
Rainer Ungruh
Cord Fricke
Josef Holtheide
Original Assignee
Zf Friedrichshafen Ag
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 Zf Friedrichshafen Ag filed Critical Zf Friedrichshafen Ag
Publication of WO2008040279A1 publication Critical patent/WO2008040279A1/fr

Links

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
    • F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F16C11/0623—Construction or details of the socket member
    • F16C11/0628—Construction or details of the socket member with linings
    • F16C11/0633—Construction or details of the socket member with linings the linings being made of plastics
    • F16C11/0638—Construction or details of the socket member with linings the linings being made of plastics characterised by geometrical details

Definitions

  • the invention relates to a ball joint for a vehicle, comprising a housing, a seated in the housing and extending out of this ball pin, which has a connection area and a ball joint, which is movably mounted with the interposition of a spherical shell in the housing surrounding a ball joint Has wall in which a plurality of axially extending arcuate longitudinal slots are provided.
  • Such ball joints are known from the prior art, wherein the longitudinal slots in the ball cup serve to snap the ball joint under elastic expansion of the ball shell in this. Without the longitudinal slots, there would be a risk that the ball socket would be destroyed when the ball joint snaps in, in particular breaks, with six longitudinal slots in the ball socket being provided regularly in conventional ball joints.
  • the material of the spherical shell can flow under load and / or temperature influences in the longitudinal slots.
  • the number of longitudinal slots could be reduced. However, this is not possible without further ado, since with a smaller number of longitudinal slots there is a risk that the between the Longitudinally slitting segments of the spherical shell snap off during assembly in the housing.
  • the invention has the object to increase the load capacity of the ball joint.
  • the ball joint according to the invention for a vehicle in particular a motor vehicle, has a housing and a seated in the housing and extending out of this ball stud, which comprises a connection area and a ball joint, which is movably mounted with the interposition of a spherical shell in the housing, the one Hinged ball surrounding wall, in which a plurality of axially extending arcuate longitudinal slots are provided, wherein the wall further comprises a plurality of arcuately extending transversely to the longitudinal slots transverse slots.
  • the elongation of the spherical shell material is reduced during assembly.
  • the longitudinal slots in particular four, three or two longitudinal slots, the load capacity of the ball shell and thus the load capacity of the ball joint is increased.
  • an axial joint is preferably formed by the ball joint
  • the invention is not limited thereto, so that the ball joint can be formed as a radial joint or ball joint joint.
  • the terms "axial” and “radial” characterize in particular the main load directions of the joints, wherein the axial direction preferably coincides with the longitudinal direction of the ball joint and the radial direction is perpendicular to the axial direction.
  • the longitudinal slots penetrate the wall in the radial direction and are open towards an end face of the spherical shell.
  • the transverse slots can penetrate the wall in the radial direction.
  • the longitudinal slots are preferably closed at their end faces facing away from the slot ends. Furthermore, the transverse slots may each be closed at both slot ends.
  • the segments of the wall or spherical shell preferably sit between the longitudinal slots and extend in particular from the transverse slots to the end face of the spherical shell.
  • the segments can be bent elastically when the ball stud is inserted into the ball socket.
  • the number of segments preferably corresponds to the number of longitudinal slots or the number of transverse slots, which in particular coincides with the number of longitudinal slots.
  • the transverse slots are preferably spaced apart on a common arc or arc extending around the longitudinal axis of the ball joint.
  • the transverse slots at a distance from the end face of the spherical shell, which is internally provided with a hollow spherical or partially hollow spherical bearing surface which rests in the mounted state, in particular slidably on the ball joint.
  • the transverse slots extend along an equator of the spherical shell.
  • the longitudinal slots can pass into the transverse slots.
  • one of the longitudinal slots merges into one of the transverse slots.
  • the transverse slots can cut the longitudinal slots, so that the longitudinal slots together with the transverse slots, for example, form cross-shaped or substantially cross-shaped Nutverincome.
  • the longitudinal slots can pass into the transverse slots at their ends facing away from the front side, which are then formed as an extension of the longitudinal slots on Schlitzfuß in the circumferential direction and wegerhoteln on one side or both sides of the Schlitzfuß in the circumferential direction.
  • the longitudinal slots can form together with the transverse slots T-shaped or substantially T-shaped or L-shaped or substantially L-shaped Nutverincome.
  • the transverse slots are arranged between the longitudinal slots or between the sheets on which lie the longitudinal slots.
  • the transverse slots in the axial direction may have a greater distance from the front side than the ends of the longitudinal slots facing away from the end side.
  • the longitudinal slots are separated from the transverse slots.
  • the longitudinal slots form together with the transverse slots U-shaped or substantially U-shaped arrangements.
  • a lubricant may be introduced, which facilitates sliding of the joint ball in the ball socket.
  • the transverse slots are filled with the lubricant, so that the transverse slots form fat pockets, which are provided in particular at the equator. As a result, a low breakaway torque can be realized.
  • the ball shell is in particular formed in one piece or in one piece, wherein the ball shell seen in the longitudinal direction preferably rests on both sides of the equator on the ball joint.
  • the ball stud and the housing are preferably made of metal, in particular steel.
  • the spherical shell is preferably made of plastic, in particular of polyoxymethylene (POM).
  • POM polyoxymethylene
  • FIG. 1 is a schematic view of a ball joint according to a first embodiment of the invention
  • FIG. 2 shows a schematic partial view of a spherical shell according to a second embodiment of the invention
  • FIG. 3 shows a schematic partial view of a ball socket according to a third embodiment of the invention
  • FIG. 5 shows a cross section through the spherical shell of FIG. 4 along its equator.
  • FIG. 1 is a schematic view of an embodiment of the ball joint 1 according to the invention can be seen, comprising a housing 2, a set in the housing 2 ball shell 3 and a ball pin 4, which comprises a ball joint 5 and rotatable and pivotable with this in the ball socket 3 is stored.
  • the ball stud 4 is provided with a connecting region 6 arranged outside the housing 2, which is fixedly connected to the joint ball 5 or formed in one piece.
  • the spherical shell 3 has a diagrammatically illustrated equator 7 and lies in the direction of the longitudinal axis 8 on both sides of the equator 7 on the ball joint 5 at.
  • the spherical shell 3 is formed integrally.
  • a plurality of longitudinal slots 10 are provided around the longitudinal direction 8, which extend in the radial direction through the wall 9 through and are open to an end face 11 of the spherical shell 3.
  • the ball pin 4 extends through an opening 12 of the housing 2 through, wherein the end face 11 of the housing opening 12 faces.
  • the longitudinal slots 10 extend from the end face 11 to the equator 7 and go there in each case in a transverse slot 13 which extends in the radial direction through the wall 9 and in the circumferential direction on both sides of the longitudinal slot 10 away.
  • the longitudinal slot 10 thus forms together with the transverse slot 13 has a substantially T-shaped slot profile.
  • the longitudinal slots 10 divide the wall in the circumferential direction into a plurality of segments 14 which move elastically apart during insertion of the joint ball 5 in the spherical shell 3 and rest after snapping on the ball joint 5, wherein the spherical shell 3 at the end face 11 has a smaller diameter the joint ball 5 has.
  • the ball socket 3 is not destroyed during the insertion of the ball stud 4, since the segments 14 can be bent apart elastically due to the slots 10 and 13 to a sufficient extent.
  • the inner diameter of the wall 9 at the equator 7 corresponds in particular to the diameter of a large circle or articulated equator located on the joint ball 5.
  • a connecting piece 15 is provided, by means of which the housing 2 is fastened to a motor vehicle component 16. Furthermore, another motor vehicle component 17 is fastened to the connection region 6 of the ball stud 4, so that the two motor vehicle components 16 and 17 are connected to one another with the interposition of the ball joint 1.
  • four longitudinal slots 10 and four transverse slots 13 are preferably provided.
  • the longitudinal slots 10 and the transverse slots 13 are particularly evenly distributed around the longitudinal axis 8 in the wall 9 of the spherical shell 3 is provided.
  • the housing 2 is pressed to fix the ball socket 3, wherein the housing 2 is shown on the right of the line 8 before pressing and left of the line 8 after the pressing.
  • a surrounding the opening 12 edge region 18 of the housing. 2 bent in the direction of the spherical shell 3.
  • a rubber ring 20 is disposed between the spherical shell 3 and a bottom portion 19 of the housing 2, which is compressed during the pressing and after pressing the ball socket 3 in the direction of the opening 12 presses against the housing 2.
  • FIGS. 2 and 3 are schematic partial views of a spherical shell according to a second and a third embodiment of the invention can be seen, wherein identical or similar features to the first embodiment are denoted by the same reference numerals as in the first embodiment.
  • the spherical shells are shown isolated, they can each completely replace the ball socket 3 according to the first embodiment and be inserted in a corresponding manner together with the ball pin 4 in the housing 2.
  • FIG. 2 shows longitudinal slots 10, which are each cut by a transverse slot 13, so that a total of cross-shaped slot sales result, between which a segment 14 sits, which can be bent flexibly due to the slots 10 and 13 for insertion of the ball stud 4.
  • FIG. 2 shows only two cross-shaped slot sales, a total of four cross-shaped slot sales are preferably formed in the wall 9 of the ball shell 3, which are arranged in particular evenly distributed around the longitudinal direction 8 and include a total of four similar segments 14.
  • Fig. 3 shows longitudinal slots 10 which are arranged together with a transverse slot 13 U-shaped. Since the longitudinal slots 10 do not merge into the transverse slot 13, a spacing is formed between the latter and the longitudinal slots 10 so that there is no coherent slot progression from the transverse slot 13 and one of the longitudinal slots 10. Between the two longitudinal slots 10 sits a segment 14, which can be flexibly bent due to the slots 10 and 13 for insertion of the ball stud 4.
  • Fig. 3 shows only two longitudinal slots 10 and a transverse slot 13, a total of four longitudinal slots and four transverse slots are preferably provided in the wall 9 of the ball shell 3, so that a total of four U-shaped slot arrangements are formed, the in particular evenly distributed around the longitudinal direction 8 are arranged and define a total of four similar segments 14.
  • Fig. 4 shows a longitudinal section through the ball socket 3 according to the first embodiment, wherein a radius 21 of a partially hollow spherical bearing surface 22 of the spherical shell 3 is shown in dashed lines.
  • the joint ball 5 abuts against the bearing surface 22.
  • the longitudinal slots 10 can be seen from Fig. 4, which merge at their slot feet in the transverse slots 13.
  • the longitudinal slots 10 extend at least in the axial direction 8 arcuately because of the partially hollow spherical design of the bearing surface 22.
  • FIG. 5 shows a cross section of the ball socket 3 according to FIG. 4 along the equator 7.
  • the transverse slots 13 can be seen, which extend in an arcuate manner at least in the circumferential direction or transversely to the longitudinal slots 10 because of the partially hollow spherical design of the bearing surface 22.
  • the ball shell 3 preferably has a hollow-spherical or partially hollow-spherical bearing surface 22 for the joint ball 5 inside. Furthermore, the outer surface of the spherical shell 3 may be at least partially spherical or partially spherical.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

Articulation à rotule pour un véhicule, comportant un boîtier (2) et un pivot à rotule (4) logé dans le boîtier (2) et s'étendant hors du boîtier (2). Le pivot à rotule (4) présente une région de raccordement (6) et une rotule d'articulation (5) qui est montée de façon mobile dans le boîtier (2) avec intercalage d'un coussinet sphérique (3), la rotule présentant une paroi (9) entourant la rotule d'articulation (5). Plusieurs fentes longitudinales (10) s'étendant en arc dans la direction axiale sont prévues dans la paroi (9). La paroi (9) présente plusieurs fentes transversales (13) s'étendant en arc, transversalement par rapport aux fentes longitudinales (10).
PCT/DE2007/001584 2006-09-26 2007-09-10 Articulation à rotule comportant une coquille sphérique présentant des fentes longitudinales et transversales WO2008040279A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006045809.5 2006-09-26
DE102006045809.5A DE102006045809B4 (de) 2006-09-26 2006-09-26 Kugelgelenk

Publications (1)

Publication Number Publication Date
WO2008040279A1 true WO2008040279A1 (fr) 2008-04-10

Family

ID=39111509

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/001584 WO2008040279A1 (fr) 2006-09-26 2007-09-10 Articulation à rotule comportant une coquille sphérique présentant des fentes longitudinales et transversales

Country Status (2)

Country Link
DE (1) DE102006045809B4 (fr)
WO (1) WO2008040279A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022129175A1 (de) 2021-12-16 2023-06-22 Illinois Tool Works Inc. Kugelpfannenvorrichtung sowie eine Kugelgelenkvorrichtung mit einer solchen Kugelpfannenvorrichtung

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2970052B1 (fr) * 2011-01-03 2013-12-27 Jtekt Europe Sas Cage pour une rotule de direction d'un vehicule
JP6347522B2 (ja) * 2015-12-24 2018-06-27 ヴィオニア日信ブレーキシステムジャパン株式会社 入力装置
DE102016224045A1 (de) * 2016-12-02 2018-06-07 Zf Friedrichshafen Ag Kugelschale für ein Kugelgelenk

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014441B (de) * 1953-06-17 1957-08-22 Ehrenreich & Cie A Kugelgelenk zum UEbertragen von Lenk- und Steuerkraeften od. dgl., insbesondere fuer Lenk- und Steuergestaenge von Kraftfahrzeugen
GB1181686A (en) * 1966-04-16 1970-02-18 Schmidt Gmbh Karl A Bearing Bush for Ball and Socket Joints
US3530495A (en) * 1967-10-27 1970-09-22 Lemfoerder Metallwaren Ag Universal joint construction
WO2005078290A1 (fr) * 2004-02-12 2005-08-25 Raufoss Technology As Joint a rotule et demi-coussinet
US20050207684A1 (en) * 2004-03-16 2005-09-22 Jian Lu Suspension joint bearing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29722507U1 (de) * 1997-12-20 1999-04-22 Sachsenring Automobiltechnik Kugelschale für ein Kugelgelenk und Kugelgelenk mit einer solchen Kugelschale
DE10233489B4 (de) * 2002-07-24 2004-08-12 ZF Lemförder Metallwaren AG Hochleistungs-Kugelschale

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1014441B (de) * 1953-06-17 1957-08-22 Ehrenreich & Cie A Kugelgelenk zum UEbertragen von Lenk- und Steuerkraeften od. dgl., insbesondere fuer Lenk- und Steuergestaenge von Kraftfahrzeugen
GB1181686A (en) * 1966-04-16 1970-02-18 Schmidt Gmbh Karl A Bearing Bush for Ball and Socket Joints
US3530495A (en) * 1967-10-27 1970-09-22 Lemfoerder Metallwaren Ag Universal joint construction
WO2005078290A1 (fr) * 2004-02-12 2005-08-25 Raufoss Technology As Joint a rotule et demi-coussinet
US20050207684A1 (en) * 2004-03-16 2005-09-22 Jian Lu Suspension joint bearing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022129175A1 (de) 2021-12-16 2023-06-22 Illinois Tool Works Inc. Kugelpfannenvorrichtung sowie eine Kugelgelenkvorrichtung mit einer solchen Kugelpfannenvorrichtung

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DE102006045809A1 (de) 2008-04-03
DE102006045809B4 (de) 2015-06-18

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