WO1995033139A1 - Rotule d'articulation a chapeau solidaire - Google Patents

Rotule d'articulation a chapeau solidaire Download PDF

Info

Publication number
WO1995033139A1
WO1995033139A1 PCT/US1995/006814 US9506814W WO9533139A1 WO 1995033139 A1 WO1995033139 A1 WO 1995033139A1 US 9506814 W US9506814 W US 9506814W WO 9533139 A1 WO9533139 A1 WO 9533139A1
Authority
WO
WIPO (PCT)
Prior art keywords
linkball
socket
radius
bore
peripheral surface
Prior art date
Application number
PCT/US1995/006814
Other languages
English (en)
Inventor
James P. Penrod
Pethybridge
Original Assignee
Itt Automotive Electrical Systems, Inc.
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 Itt Automotive Electrical Systems, Inc. filed Critical Itt Automotive Electrical Systems, Inc.
Publication of WO1995033139A1 publication Critical patent/WO1995033139A1/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
    • F16C11/0604—Construction of the male part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/04—Wipers or the like, e.g. scrapers
    • B60S1/06—Wipers or the like, e.g. scrapers characterised by the drive
    • B60S1/16—Means for transmitting drive
    • B60S1/18—Means for transmitting drive mechanically
    • B60S1/24—Means for transmitting drive mechanically by rotary cranks
    • 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
    • F16C11/0614—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part of the joint being open on two sides
    • 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
    • F16C11/0657—Construction or details of the socket member the socket member being mainly made of plastics
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2326/00—Articles relating to transporting
    • F16C2326/01—Parts of vehicles in general
    • F16C2326/09—Windscreen wipers, e.g. pivots therefore

Definitions

  • This invention relates generally to fastening systems for connecting linkages, and more particularly to a fastening system that includes a unitary linkball and tophat member that facilitates proper connection between two linkages that move arcuately relative to each other.
  • One such example includes a windshield wiper system that has an arm that rotates or oscillates relative to a link or housing that is mounted upon the vehicle.
  • Various fastening systems are utilized in order to properly couple such linkages while enabling the desired amount of relative rotation.
  • One such fastening system includes a socket and linkball joint for coupling the two links.
  • a socket is typically connected to a first of the two links while a linkball has a portion connected to the second link.
  • Conventional linkballs are typically provided with a ball that is received within the socket. Relative rotation between the two links results in relative rotation between the linkball and the socket.
  • this invention provides a fastening system for connecting linkages that includes a socket having first and second axial ends and a central bore defined through the socket.
  • the socket is adapted to be connected to a first link.
  • An integrally formed linkball that has a generally spherical mid-portion is received within the socket bore such that relative rotation is permitted between the linkball and the socket.
  • the linkball has first and second end portions at opposite ends of the generally spherical mid-portion. When the linkball is received within the socket bore, the first and second linkball end portions are disposed outside the socket bore.
  • the linkball first end portion is adapted to be connected to a second link of the linkage.
  • the linkball second end portion has a radially outwardly extending flange that abuttingly engages an outward surface on the socket at the socket second axial end when there is relative rotation between the linkball and the socket because the relative rotation of the first and second links tends to urge the second end of the linkball toward the second axial end on the socket.
  • the linkball is made up of steel and the socket is made up of a polyurethane rubber.
  • Figure 1 is a perspective illustration of a tophat and socket designed in accordance with this invention.
  • Figures 2a and 2b are partial cross-sectional illustrations of a fastening assembly designed in accordance with this invention shown in a disconnected position.
  • Figure 3 is a partial cross-section illustration of a fastening system designed in accordance with this invention in an assembled, non-vertically loaded position.
  • Figure 4 is a partial cross-sectional view of a preferred embodiment of a fastening system designed in accordance with this invention in an operating, vertically loaded position.
  • FIG. 1 is a perspective view of linkage assembly 10 including socket 12 and linkball 14. Socket 12 and linkball 14 are illustrated in a disconnected orientation.
  • first link 16 is connected to a portion of linkball 14 while second link 18 is connected to socket 12.
  • Linkball 14 includes spherical mid-portion 20 disposed between a first end portion 22 and a second end portion 24.
  • First end portion 22 includes shaft 26 and flange 28.
  • First link 16 preferably is received onto shaft 26 and abuts flange 28 as illustrated.
  • Plug 36 is provided to maintain first link 16 upon shaft 26 and plug 36 can be of a screw-on or snap-on design but is preferably formed by a riveting or staking process.
  • Second end portion 24 includes shaft 30 extending axially upward (according to the drawing) from spherical mid-portion 20 and terminating in tophat 32.
  • Tophat 32 includes radially extending flange 34.
  • Socket 12 includes a centrally defined axial bore 38.
  • Bore 38 includes inlet throat 40 and exit throat 42 at the two opposite ends of bore 38.
  • Disposed between inlet throat 40 and exit throat 42 is the arcuate or spherical inner peripheral surface 44.
  • the outer surface 46 of socket 12 includes a nesting notch 48 that preferably is adapted to receive second link 18.
  • a ridge or flange 50 is provided at one axial end of socket 12.
  • Socket 12 includes ribs or axial slots 45, which are defined along the inner peripheral surface 44 and a portion of inlet throat 40 and exit throat 42 as depicted in Figure 2a.
  • Figure 2b shows, in cross-sectional detail, the preferred positioning of ribs 45 along bore 38.
  • Ribs 45 facilitate assembling the linkball/socket assembly because they provide added resiliency to socket 12 during assembly.
  • Ribs 45 further provide the advantage of allowing lubricant such as grease, which is preferably provided within spherical surface 44, to move radially outward into ribs 45 during assembly.
  • Linkball 14 is inserted into the bore 38 on socket 12 as generally illustrated by direction arrow 52 such that linkball 14 is received into socket 12 as illustrated in Figures 3 and 4.
  • Tophat 32 preferably includes a truncated hemispherical portion 54 that terminates at an outer circumferential edge of the radially extending flange 34.
  • Truncated hemispherical portion 54 is also referred to herein as having a distal surface 55 and a chamfered edge 56.
  • Chamfered edge 56 is preferably defined by having an increasing radius that begins with the radius of the distal surface 55 and terminates in the radius of the radially extending flange 34.
  • Truncated hemispherical portion 54 facilitates the insertion of linkball 14 into socket 12 which can be appreciated from the drawings.
  • the outermost peripheral surface of truncated hemispherical portion 54 preferably has a radius that is generally equal to the radius of the spherical mid-portion 20 of linkball 14. A one-to-one relationship between the two radii just mentioned is preferred in order to facilitate proper coupling between linkball 14 and socket 12.
  • the radius of flange 34 can be different than that of the spherical mid-portion 20 provided that the flange 34 extends beyond the nominal radius of the exit throat 42 defined on the bore 38 of socket 12.
  • flange 34 extend beyond the nominal radius of exit throat 42 of socket 12 such that a portion of flange 34 will abuttingly engage the outer surface 46 of socket 12 adjacent the exit throat 42 when linkball 14 is urged in a direction opposite from direction arrow 52.
  • cap 58 is provided in order to prevent dust and debris from becoming lodged between linkball 14 and spherical inner peripheral surface 44 on socket 12.
  • Cap 58 preferably includes a circumferential notch 60 that receives ridge 50 such that cap 58 is snappingly and removably coupled with socket 12.
  • Cap 58 also has inner peripheral surface 62 that is preferably spaced away from the outer surface 46 adjacent exit throat 42 on socket 12 such that there is axial clearance sufficient to receive tophat 32 within cap 58 when linkball 14 is in a rest position within socket 12.
  • axial clearance indicated at 57 preferably exists between flange 34 and the outer surface 46 of socket 12 adjacent exit throat 42.
  • first link 16 rotating relative to second link 18. It is to be appreciated that either or both links could be rotating depending on the particular application.
  • linkball 14 will rotate relative to socket 12 because of the interconnections between linkball 14 and first link 16 and socket 12 and second link 18 (the interconnections are not specifically shown).
  • first link 16 rotates about central longitudinal axis 63, defined through the center of linkball 14 and socket 12
  • a resulting tangential force typically is produced.
  • This tangential force is illustrated schematically in Figure 4 by force arrow 64.
  • force arrow 64 has a vertical component 66 and a horizontal component 68 (the terms vertical and horizontal as used herein refer to the specific orientation of the illustrations only) .
  • the vertical component 66 of force 64 urges linkball 14 in a direction illustrated by direction arrow 70 relative to socket 12.
  • tophat 32 is provided at the second end of linkball 15 in order to maintain a proper engagement between linkball 14 and socket 12.
  • linkball 14 When first link 16 rotates relative to second link 18 and linkball 14 is urged in the direction indicated by direction arrow 70, the axial clearance 57 is reduced and eventually eliminated, as outwardly radially extending flange 34 abuttingly engages the axial end of socket 12 adjacent exit throat 42.
  • the single piece, integral construction of linkball 14 and tophat 32 provides a significant advantage over devices in the prior art in that linkball 14 is maintained in proper engagement with socket 12.
  • Experimental testing of one embodiment of this invention reveals that the coupling between linkball 14 and socket 12 is maintained even when the linkball is subject to loads as high as 3250 Newtons.
  • linkball 14 is a single-piece integrally formed steel member.
  • Socket 12 is preferably made from a polyurethane rubber and cap seal 58 is preferably made from a polypropylene copolymer.
  • the processes for forming linkball 14, socket 12 and cap 58 are conventional processes such as rolling, stamping or the like.

Landscapes

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

Abstract

Un système de fixation permettant de raccorder des articulations comprend un rotule d'articulation (14) d'une seule pièce, présentant une partie centrale généralement sphérique (20) et un chapeau (32) disposé à une extrémité axiale de la rotule d'articulation (14). La partie centrale généralement sphérique (20) est logée à l'intérieur d'une douille (12) et tourne par rapport à cette douille en cas de rotation relative entre les éléments de l'articulation. Le chapeau (32) permet de maintenir la rotule d'articulation (14) correctement emboîtée à l'intérieur de la douille (12) pendant la rotation relative entre les éléments de l'articulation.
PCT/US1995/006814 1994-05-31 1995-05-31 Rotule d'articulation a chapeau solidaire WO1995033139A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25155494A 1994-05-31 1994-05-31
US08/251,554 1994-05-31

Publications (1)

Publication Number Publication Date
WO1995033139A1 true WO1995033139A1 (fr) 1995-12-07

Family

ID=22952462

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/006814 WO1995033139A1 (fr) 1994-05-31 1995-05-31 Rotule d'articulation a chapeau solidaire

Country Status (1)

Country Link
WO (1) WO1995033139A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0742375A2 (fr) * 1995-05-12 1996-11-13 Kabushiki Kaisha Somic Ishikawa Joint à rotule
FR2757120A1 (fr) * 1996-12-12 1998-06-19 Journee Paul Sa Systeme d'essuie-glace comportant une articulation a pivot munie de moyens d'etancheite perfectionnes
GB2326190A (en) * 1997-06-14 1998-12-16 Ford Motor Co A ball joint
WO2004036070A1 (fr) * 2002-09-23 2004-04-29 Valeo Systemes D'essuyage Joint d'articulation spherique pour entrainements de vehicules
FR2901584A1 (fr) * 2006-05-23 2007-11-30 Peugeot Citroen Automobiles Sa Manchon de maintien d'un element d'appui ou de couverture sous le plancher de l'habitacle d'un vehicule automobile
CN103625432A (zh) * 2012-08-28 2014-03-12 博世汽车部件(长沙)有限公司 雨刮系统及其曲柄组件
WO2018127321A1 (fr) * 2017-01-06 2018-07-12 Robert Bosch Gmbh Joint à rotule ayant un ensemble logement de rotule de verrouillage
EP3650719A3 (fr) * 2018-10-16 2020-07-29 Dr. Schneider Kunststoffwerke GmbH Dispositif palier, palier à joint à rotule et dispositif pourvu d'un dispositif palier et d'au moins un palier à billes

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB885198A (en) * 1959-09-25 1961-12-20 Bosch Gmbh Robert Improvements in or relating to ball and socket joints
CH451612A (de) * 1965-09-23 1968-05-15 Ehrenreich & Cie A Kugelgelenk in der Form eines Winkelgelenks
FR2131316A5 (fr) * 1971-03-26 1972-11-10 Bosch
FR2136014A5 (fr) * 1971-04-02 1972-12-22 Bosch
US3845998A (en) * 1972-12-22 1974-11-05 Chrysler Corp Windshield wiper linkage bushing
FR2237519A7 (fr) * 1973-07-12 1975-02-07 Bosch Gmbh Robert
EP0344822A2 (fr) * 1987-04-01 1989-12-06 Airaxs.A. Articulation démontable à rotule
EP0615882A2 (fr) * 1993-03-19 1994-09-21 Donnelly Mirrors Limited Rétroviseur

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB885198A (en) * 1959-09-25 1961-12-20 Bosch Gmbh Robert Improvements in or relating to ball and socket joints
CH451612A (de) * 1965-09-23 1968-05-15 Ehrenreich & Cie A Kugelgelenk in der Form eines Winkelgelenks
FR2131316A5 (fr) * 1971-03-26 1972-11-10 Bosch
FR2136014A5 (fr) * 1971-04-02 1972-12-22 Bosch
US3845998A (en) * 1972-12-22 1974-11-05 Chrysler Corp Windshield wiper linkage bushing
FR2237519A7 (fr) * 1973-07-12 1975-02-07 Bosch Gmbh Robert
EP0344822A2 (fr) * 1987-04-01 1989-12-06 Airaxs.A. Articulation démontable à rotule
EP0615882A2 (fr) * 1993-03-19 1994-09-21 Donnelly Mirrors Limited Rétroviseur

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0742375A2 (fr) * 1995-05-12 1996-11-13 Kabushiki Kaisha Somic Ishikawa Joint à rotule
EP0742375A3 (fr) * 1995-05-12 1997-07-30 Ishikawa Tekko Kk Joint à rotule
US5743669A (en) * 1995-05-12 1998-04-28 Kabushiki Kaisha Somic Ishikawa Ball joint
FR2757120A1 (fr) * 1996-12-12 1998-06-19 Journee Paul Sa Systeme d'essuie-glace comportant une articulation a pivot munie de moyens d'etancheite perfectionnes
GB2326190A (en) * 1997-06-14 1998-12-16 Ford Motor Co A ball joint
EP0884489A2 (fr) * 1997-06-14 1998-12-16 Ford Motor Company Limited Articulation à rotule
EP0884489A3 (fr) * 1997-06-14 2000-01-19 Ford Motor Company Limited Articulation à rotule
WO2004036070A1 (fr) * 2002-09-23 2004-04-29 Valeo Systemes D'essuyage Joint d'articulation spherique pour entrainements de vehicules
FR2901584A1 (fr) * 2006-05-23 2007-11-30 Peugeot Citroen Automobiles Sa Manchon de maintien d'un element d'appui ou de couverture sous le plancher de l'habitacle d'un vehicule automobile
CN103625432A (zh) * 2012-08-28 2014-03-12 博世汽车部件(长沙)有限公司 雨刮系统及其曲柄组件
WO2018127321A1 (fr) * 2017-01-06 2018-07-12 Robert Bosch Gmbh Joint à rotule ayant un ensemble logement de rotule de verrouillage
KR20190104366A (ko) * 2017-01-06 2019-09-09 로베르트 보쉬 게엠베하 로킹 볼 소켓 조립체를 갖는 볼 조인트
KR102453457B1 (ko) * 2017-01-06 2022-10-12 로베르트 보쉬 게엠베하 로킹 볼 소켓 조립체를 갖는 볼 조인트
US11578752B2 (en) 2017-01-06 2023-02-14 Robert Bosch Gmbh Ball joint with locking ball socket assembly
EP3650719A3 (fr) * 2018-10-16 2020-07-29 Dr. Schneider Kunststoffwerke GmbH Dispositif palier, palier à joint à rotule et dispositif pourvu d'un dispositif palier et d'au moins un palier à billes
EP3832154A1 (fr) * 2018-10-16 2021-06-09 Dr. Schneider Kunststoffwerke GmbH Élément palier pour une rotule et ensemble à rotule avec un élément palier

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