EP1537338A1 - Kugelgelenkschutzkappe - Google Patents

Kugelgelenkschutzkappe

Info

Publication number
EP1537338A1
EP1537338A1 EP03753289A EP03753289A EP1537338A1 EP 1537338 A1 EP1537338 A1 EP 1537338A1 EP 03753289 A EP03753289 A EP 03753289A EP 03753289 A EP03753289 A EP 03753289A EP 1537338 A1 EP1537338 A1 EP 1537338A1
Authority
EP
European Patent Office
Prior art keywords
ball joint
protection cap
hollow cylindrical
joint protection
balljoint
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Withdrawn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
EP03753289A
Other languages
German (de)
English (en)
French (fr)
Inventor
Manfred Bohne
Carsten Spremberg
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.)
ZF Lemfoerder GmbH
Original Assignee
ZF Lemfoerder GmbH
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 Lemfoerder GmbH filed Critical ZF Lemfoerder GmbH
Publication of EP1537338A1 publication Critical patent/EP1537338A1/de
Withdrawn legal-status Critical Current

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
    • 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
    • F16C11/0666—Sealing means between the socket and the inner member shaft
    • 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
    • F16C11/0666—Sealing means between the socket and the inner member shaft
    • F16C11/0671—Sealing means between the socket and the inner member shaft allowing operative relative movement of joint parts due to flexing of the sealing means
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
    • F16D3/84—Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
    • 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
    • F16C2202/00—Solid materials defined by their properties
    • F16C2202/20—Thermal properties
    • F16C2202/24—Insulating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/16—Joints and connections with adjunctive protector, broken parts retainer, repair, assembly or disassembly feature
    • Y10T403/1608—Holding means or protector functioning only during transportation, assembly or disassembly
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32606—Pivoted
    • Y10T403/32631—Universal ball and socket

Definitions

  • the invention relates to a ball joint protection cap for covering the peg-shaped portion of a fully assembled ball joint for the period from production to installation of the ball joint with the features disclosed in the generic part of claim 1.
  • Ball joints in which the generic ball joint protection cap is used, usually consist of a joint housing and a joint pin received within the joint housing by means of a bearing shell.
  • the hinge pin consists of a spherical bearing surface and a pin-shaped partial area extending thereon in the axial longitudinal direction of the hinge pin, which protrudes from the joint housing in the fully assembled state of the ball joint.
  • a conical receiving section for fixing the ball joint on another component, for example on a chassis-side component of a motor vehicle, and a threaded section usually provided for fixing, which is provided with an external thread, are usually present on this peg-shaped partial area.
  • sealing bellows Another component of such ball joints is a sealing bellows, which seals the gap between the housing and the pivot pin protruding from an opening in the housing.
  • the sealing bellows is usually fixed statically on the housing and is arranged on the conical receiving section of the pivot pin in the axial longitudinal direction of the pivot pin so that it can move around it.
  • Conventional ball joint protection caps have at least two adjacent sections of different geometry, the section with the larger outer dimension being plugged onto the housing of the ball joint to be protected, adjacent to the edge region of the opening for the joint pin.
  • the transition region between the individual sections can be conical in order to ensure a sufficient distance from the components of the ball joint to be protected.
  • the outer free end of the ball-joint cap is closed by a cap-'-shaped section, so that after fitting the ball joint cap on the joint housing is a closed interior space for the protection of the pivot-side part region and the sealing bellows is obtained.
  • the object of the present invention is therefore to provide a ball joint protective cap of the generic type which ensures reliable protection of both the sealing bellows against external force and additional protection of the gap between the pin part and the housing against the ingress of dirt.
  • the ball joint protection cap is characterized in that a transition region that extends essentially perpendicular to the axial longitudinal direction of the ball joint protection cap is arranged in the transition of the sections.
  • the contact of the transition area of the ball joint protection cap running perpendicular to the axial direction on the outer edge of the sealing bellows creates an additional sealing surface, so that the outer area of the sealing bellows is also protected from contamination, as long as the ball joint protection cap is fitted on the ball joint, provided that the ball joint protection cap is also present abuts the housing.
  • the dimension of the diameter of the smaller hollow cylindrical section of the ball joint protection cap should only be slightly larger than the dimension of the covered, peg-shaped partial region of the ball joint.
  • Another embodiment of the invention can be seen in the fact that three hollow cylindrical sections of different diameters are provided on the total axial length of the ball joint protection cap, the diameter values of the individual sections decreasing in each case from the end to be plugged onto the housing to the opposite free end of the ball joint protection cap and in the transition area of the hollow cylindrical sections, a transition region extending essentially perpendicular to the axial longitudinal direction of the ball joint protective cap is arranged.
  • At least one radially inwardly projecting elastic tongue is arranged on the inner contour of the hollow cylindrical section located on the free end of the spherical joint protection cap facing away from the joint housing, which tongue can optionally be formed all around the entire inner contour.
  • This tongue engages in a Gewmdegang of the threaded portion of the hinge pin enclosed by the relevant hollow cylindrical section and thereby ensures a reliable fixing of the ball joint protection cap on the pin-shaped portion of the hinge pin, thus fixing the ball joint protection cap on the housing can be omitted.
  • An increase in the elasticity of the circumferential tongue can be brought about as a further expedient embodiment in that the radially inwardly projecting circumferentially formed elastic tongue has a plurality of slots distributed over the entire circumference of the tongue.
  • At least one radially outwardly projecting shoulder is arranged on the outer edge of the hollow cylindrical section located on the free end of the ball joint protection cap facing away from the joint housing and can be formed all around.
  • FIG. 1 shows a sectional view through a conventional ball joint with a ball joint protection cap according to the invention attached to it
  • Figure 2 is a sectional view through the ball joint protection cap alone and
  • Figure 3 is a plan view of the ball joint protection cap corresponding to the
  • the ball joint shown in FIG. 1 is essentially formed from a joint housing 1, a bearing shell 2 located in an inner cavity of the joint housing, a joint pin 3 accommodated within the bearing shell, a locking ring 4 and a sealing bellows 5.
  • the pivot pin 3 has a ball head 6 and a pin-shaped partial area 7, the pin-shaped partial area 7 in turn being subdivided into a conical receiving section 8 and a threaded section 9.
  • this ball joint protective cap 11 has three hollow cylindrical sections 12, 13 and 14.
  • the hollow cylindrical sections have different diameters, the hollow cylindrical section 12 with the largest diameter facing the joint housing 1 of the ball joint.
  • the hollow cylindrical section 13, which is adjacent to the section 12, is dimensioned slightly larger in diameter than the inner conical receiving section 8 of the pivot pin 3 covered by this section of the ball joint protective cap 11.
  • a contact surface 17 is created on the inside of the ball joint protective cap 11, which when the ball joint protection cap 11 is placed on the joint housing 1 comes into contact with a corresponding contact surface 18 of the sealing bellows 5 and, due to the length of the individual hollow cylindrical sections, the sealing bellows 5 in the direction of the arrows P, ie in the direction of the joint housing 1 on the conical receiving section 8 of the Hinge pin 3 moves.
  • the ball joint protection cap according to the invention is likewise provided in the transition between the hollow cylindrical section 13 and the hollow cylindrical section 14 with a transition region 20 which extends essentially perpendicular to the axial longitudinal direction of the ball joint protection cap 11.
  • the transition region 20 thus designed as a shoulder comes to rest on a recess 21 of the pivot pin 3 which is present between the conical receiving section 8 and the threaded section 9.
  • the contact in the area of the recess 21 of the pivot pin 3 and the ball joint protective cap 11 causes a further sealing gap, through which the penetration of contaminants into the cavity 22 between the hollow cylindrical section 13 and the conical receiving section 8 of the pivot pin 3 is prevented.
  • a prerequisite for contacting the recess 21 is that the diameter of the hollow cylindrical section 14 at the free end of the ball joint protective cap is only slightly larger than the outside diameter of the threaded section 9.
  • An increase in the elasticity of the circumferential tongue 24 can be brought about in that the radially inwardly projecting circumferential elastic tongue 24 has a plurality of slots 26 distributed over the entire circumference of the tongue, as is clear from FIG. 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Sealing Devices (AREA)
EP03753289A 2002-09-11 2003-09-10 Kugelgelenkschutzkappe Withdrawn EP1537338A1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10242578A DE10242578B4 (de) 2002-09-11 2002-09-11 Kugelgelenkschutzkappe
DE10242578 2002-09-11
PCT/DE2003/003010 WO2004027275A1 (de) 2002-09-11 2003-09-10 Kugelgelenkschutzkappe

Publications (1)

Publication Number Publication Date
EP1537338A1 true EP1537338A1 (de) 2005-06-08

Family

ID=31969115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03753289A Withdrawn EP1537338A1 (de) 2002-09-11 2003-09-10 Kugelgelenkschutzkappe

Country Status (8)

Country Link
US (1) US20050036827A1 (ko)
EP (1) EP1537338A1 (ko)
JP (1) JP2005538328A (ko)
KR (1) KR20050065452A (ko)
CN (1) CN1330889C (ko)
DE (1) DE10242578B4 (ko)
HK (1) HK1080536B (ko)
WO (1) WO2004027275A1 (ko)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2003304327A1 (en) * 2003-07-07 2005-01-28 Zf Ansa Lemforder, S.L. Knuckle with thermal protector
DE102008001177B4 (de) 2008-04-15 2009-12-17 Zf Friedrichshafen Ag Gelenkschutzkappe
DE102008002031B4 (de) 2008-05-28 2017-03-02 Zf Friedrichshafen Ag Kugelgelenk
US8414215B2 (en) * 2008-11-07 2013-04-09 Trw Automotive U.S. Llc Sealing structure for use with a ball and socket joint
DE102009042936B4 (de) * 2009-09-24 2018-07-05 Zf Friedrichshafen Ag Abgedichtetes Kugelgelenk
CN106286578A (zh) * 2015-05-15 2017-01-04 谷崧精密工业股份有限公司 可调式球型万向接头机构
DE102015010304A1 (de) 2015-08-07 2016-03-24 Daimler Ag Verschlussring für ein Kugelgelenk
DE102015217219A1 (de) * 2015-09-09 2017-03-09 Zf Friedrichshafen Ag Schutzkappe, Kugelgelenk mit einer solchen Schutzkappe und Zweipunktlenker mit einem derartigen Kugelgelenk
DE102015217217A1 (de) 2015-09-09 2017-03-09 Zf Friedrichshafen Ag Schutzkappe, Kugelgelenk mit einer solchen Schutzkappe und Zweipunktlenker mit einem derartigen Kugelgelenk
DE102016201046A1 (de) * 2016-01-26 2017-07-27 Zf Friedrichshafen Ag Kugelgelenk für ein Fahrzeug, insbesondere für ein Offroadfahrzeug
CN105822682A (zh) * 2016-04-27 2016-08-03 成都绿迪科技有限公司 一种联轴器的过渡装置
US10527089B2 (en) * 2016-10-31 2020-01-07 Mevotech Lp Directional bearing for ball joint
DE102017203687A1 (de) 2017-03-07 2018-09-13 Zf Friedrichshafen Ag Kugelgelenkschutzkappe zum Schutz eines fertig montierten Kugelgelenks
EP3620675B1 (en) * 2018-08-29 2021-12-15 Schaublin SA An anti pull-out collar for a ball joint
DE102019204659A1 (de) * 2019-04-02 2020-10-08 Zf Friedrichshafen Ag Kugelgelenk für ein Fahrwerk eines Fahrzeugs und Verfahren zum Herstellen eines solchen Kugelgelenks
CN111749977A (zh) * 2020-05-30 2020-10-09 贵州卡西马科技有限公司 一种应用于汽车的防尘防锈球头组件
KR102652681B1 (ko) * 2023-12-06 2024-03-29 서한이노빌리티(주) 볼 조인트 유닛의 볼 이탈 방지 보호구

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US3104536A (en) * 1960-04-09 1963-09-24 Walterscheid Kg Jean Protective device for universal-joint shafts
US3199902A (en) * 1962-11-08 1965-08-10 Gen Motors Corp Ball joint unit with combination thread protector and seal retainer
US3357728A (en) * 1964-09-11 1967-12-12 James O Melton Ball and socket joint
DE1575437B1 (de) * 1966-10-08 1971-04-22 Ehrenreich & Cie A Kugelgelenk, insbesondere zur Verwen dung bei Kraftfahrzeugen
US3598434A (en) * 1970-06-08 1971-08-10 Columbus Autom Parts Co Ball joint having disposable retainer
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DE3612913C1 (de) * 1986-04-17 1987-09-10 Trw Ehrenreich Gmbh Dichtungsbalg fuer Kugelgelenke
US4716875A (en) * 1986-08-18 1988-01-05 Troncoso Fernando Jr Safety plug device for fuel lines
US5027665A (en) * 1988-06-23 1991-07-02 Hayward Philip F Protective gaiters for joints
US4848950A (en) * 1988-09-26 1989-07-18 Ford Motor Company Protective cover for flexible joint
GB2262142B (en) * 1991-12-03 1995-04-19 Draftex Ind Ltd Protective bellows
DE9206848U1 (de) * 1992-05-20 1992-07-23 Lemförder Metallwaren AG, 2844 Lemförde Gelenk für Fahrwerksteile in einem Kraftfahrzeug
US5413431A (en) * 1993-05-07 1995-05-09 Trw Inc. Protective cover for a ball joint assembly
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Also Published As

Publication number Publication date
HK1080536B (zh) 2008-06-27
WO2004027275A1 (de) 2004-04-01
US20050036827A1 (en) 2005-02-17
DE10242578B4 (de) 2004-09-23
JP2005538328A (ja) 2005-12-15
KR20050065452A (ko) 2005-06-29
CN1330889C (zh) 2007-08-08
DE10242578A1 (de) 2004-04-01
HK1080536A1 (en) 2006-04-28
CN1639474A (zh) 2005-07-13

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