WO2001096167A1 - Rack yoke - Google Patents

Rack yoke Download PDF

Info

Publication number
WO2001096167A1
WO2001096167A1 PCT/AU2001/000714 AU0100714W WO0196167A1 WO 2001096167 A1 WO2001096167 A1 WO 2001096167A1 AU 0100714 W AU0100714 W AU 0100714W WO 0196167 A1 WO0196167 A1 WO 0196167A1
Authority
WO
WIPO (PCT)
Prior art keywords
rack
support member
yoke assembly
bias means
housing
Prior art date
Application number
PCT/AU2001/000714
Other languages
French (fr)
Inventor
Klaus Juergen Roeske
Original Assignee
Bishop Innovation Limited
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 Bishop Innovation Limited filed Critical Bishop Innovation Limited
Priority to AU2001265684A priority Critical patent/AU2001265684A1/en
Publication of WO2001096167A1 publication Critical patent/WO2001096167A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D3/00—Steering gears
    • B62D3/02—Steering gears mechanical
    • B62D3/12—Steering gears mechanical of rack-and-pinion type
    • B62D3/123—Steering gears mechanical of rack-and-pinion type characterised by pressure yokes
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/26—Racks
    • F16H55/28—Special devices for taking up backlash
    • 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
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/26—Racks
    • F16H55/28—Special devices for taking up backlash
    • F16H55/283—Special devices for taking up backlash using pressure yokes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Transmission Devices (AREA)

Abstract

A yoke assembly (26) for supporting a rack (1) in engagement with a pinion in a steering gear housing (2). The yoke assembly (26) comprising a support member (4) secured to the housing (2) and having a central recess (13), a bias means (5) disposed between the support member (4) and a journalling surface (9, 10) of the rack (1). The bias means (5) having a central portion (15) secured within the central recess (13) of the support member (4) and a resilient portion (16, 17) journalled on the journalling surface (9, 10) of the rack (1), thereby allowing axial displacement of the rack (1) in the housing (2). The support member (4) preloading the resilient portion (16, 17) against the journalling surface (9, 10) of the rack (1) into engagement with the pinion. The support member (4) also arranged to limit the maximum deflection of the resilient portion (16, 17), and thereby controlling maximum movement of the rack (1) away from the pinion.

Claims

9 CLAIMS:
1. A yoke assembly for supporting a rack in engagement with a pinion in a steering gear housing, the yoke assembly comprising a support member secured to the housing and having a central recess, a bias means disposed between the support member and at least one journalling surface of the rack, the bias means having a central portion secured within the central recess of the support member and a resilient portion journalled on the at least one journalling surface of the rack thereby allowing axial displacement of the rack in the housing, characterised in that the support member preloading the resilient portion against the at least one journalling surface of the rack, hence urging the rack into engagement with the pinion, the support member also arranged to limit the maximum deflection of the resilient portion, and thereby controlling the maximum movement of the rack away from the pinion.
A yoke assembly as claimed in claim 1 , wherein the at least one journalling surface is disposed on the toothed region of the rack and comprises of two dihedrally arranged guide faces, which extend over substantially the entire axial extent of the toothed region .
A yoke assembly as claimed in claim 2, wherein the guide faces are juxtaposed about a central web which extends over substantially the entire axial extent of the toothed region .
4. A yoke assembly as claimed in claim 1 , wherein the resilient portion of the bias means comprises of two beam flexures, each of which project from opposed sides of the central portion of the bias means.
5. A yoke assembly as claimed in claim 4, wherein each of the two beam flexures has a contact surface which journals with a respective guide face of the rack. 10
6. A yoke assembly as claimed in claim 5, wherein the at least one contact surface comprises a low friction coefficient lining.
7. A yoke assembly as claimed in claim 1 , wherein a spacer is inserted between the support member and the housing in order to preset the preload.
8. A yoke assembly as claimed in claim 4, wherein the support member has regions supporting the beam flexures, these regions contoured such that as the flexures are deflected, their effective length is varied, thereby providing a variable spring rate for the bias means.
PCT/AU2001/000714 2000-06-15 2001-06-15 Rack yoke WO2001096167A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001265684A AU2001265684A1 (en) 2000-06-15 2001-06-15 Rack yoke

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPQ8210 2000-06-15
AUPQ8210A AUPQ821000A0 (en) 2000-06-15 2000-06-15 Rack yoke

Publications (1)

Publication Number Publication Date
WO2001096167A1 true WO2001096167A1 (en) 2001-12-20

Family

ID=3822278

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU2001/000714 WO2001096167A1 (en) 2000-06-15 2001-06-15 Rack yoke

Country Status (2)

Country Link
AU (1) AUPQ821000A0 (en)
WO (1) WO2001096167A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2869285A1 (en) * 2004-04-27 2005-10-28 Koyo Steering Europ K S E Soc DEVICE FOR LIMITING THE AXIAL DISPLACEMENT OF A STEERING PUSH-BUTTON WITH RACK FOR A MOTOR VEHICLE
WO2009097648A1 (en) * 2008-02-07 2009-08-13 Bishop Innovation Limited Steering yoke
DE102008026874A1 (en) * 2008-06-05 2009-12-10 Trw Automotive Gmbh Device for pressing gear rod at pinion, has housing and hollow cylindrical pressure piece, where pressure piece is flexibly formed in one piece and has multiple parallely connected spring elements
DE102010029603A1 (en) * 2010-06-02 2011-12-08 Zf Lenksysteme Gmbh Device for pressing steering rack into gear pinion of steering of motor car, has adjustment device including washer disks, where complete adjustment device is pre-assembled as mounting unit with thrust piece, washer and spring by spring pin

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB911364A (en) * 1958-06-12 1962-11-28 Cam Gears Ltd Improvements in steering mechanism for road vehicles
GB1451143A (en) * 1974-01-17 1976-09-29 Zahnradfabrik Friedrichshafen Rack and pinion steering gear
GB2013304A (en) * 1978-01-25 1979-08-08 Cam Gears Ltd Rack and pinion assembly
GB2035507A (en) * 1978-12-11 1980-06-18 Cam Gears Ltd Rack and pinion gear
JPS5799466A (en) * 1980-12-12 1982-06-21 Yamada Seisakusho:Kk Rack shaft supporting device in rack-pinion type steering gear
EP0805094A2 (en) * 1996-05-03 1997-11-05 Delphi France Automotive Systems Rack and pinion steering gear
US5778731A (en) * 1995-10-26 1998-07-14 Trw Inc. Rack-and-pinion gear
EP1046569A1 (en) * 1999-04-23 2000-10-25 TRW Inc. Apparatus for turning steerable vehicle wheels
EP1063148A1 (en) * 1999-06-21 2000-12-27 Société de Mécanique d'Irigny Yoke for rack-and-pinion steering gear housing

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB911364A (en) * 1958-06-12 1962-11-28 Cam Gears Ltd Improvements in steering mechanism for road vehicles
GB1451143A (en) * 1974-01-17 1976-09-29 Zahnradfabrik Friedrichshafen Rack and pinion steering gear
GB2013304A (en) * 1978-01-25 1979-08-08 Cam Gears Ltd Rack and pinion assembly
GB2035507A (en) * 1978-12-11 1980-06-18 Cam Gears Ltd Rack and pinion gear
JPS5799466A (en) * 1980-12-12 1982-06-21 Yamada Seisakusho:Kk Rack shaft supporting device in rack-pinion type steering gear
US5778731A (en) * 1995-10-26 1998-07-14 Trw Inc. Rack-and-pinion gear
EP0805094A2 (en) * 1996-05-03 1997-11-05 Delphi France Automotive Systems Rack and pinion steering gear
EP1046569A1 (en) * 1999-04-23 2000-10-25 TRW Inc. Apparatus for turning steerable vehicle wheels
EP1063148A1 (en) * 1999-06-21 2000-12-27 Société de Mécanique d'Irigny Yoke for rack-and-pinion steering gear housing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2869285A1 (en) * 2004-04-27 2005-10-28 Koyo Steering Europ K S E Soc DEVICE FOR LIMITING THE AXIAL DISPLACEMENT OF A STEERING PUSH-BUTTON WITH RACK FOR A MOTOR VEHICLE
EP1591343A1 (en) * 2004-04-27 2005-11-02 Koyo Steering Europe (K.S.E.) Axial travel limiter for the pressure yoke of an automotive rack-and-pinion steering gear
WO2009097648A1 (en) * 2008-02-07 2009-08-13 Bishop Innovation Limited Steering yoke
DE102008026874A1 (en) * 2008-06-05 2009-12-10 Trw Automotive Gmbh Device for pressing gear rod at pinion, has housing and hollow cylindrical pressure piece, where pressure piece is flexibly formed in one piece and has multiple parallely connected spring elements
DE102008026874B4 (en) * 2008-06-05 2019-02-21 Trw Automotive Gmbh Device for pressing a rack
DE102010029603A1 (en) * 2010-06-02 2011-12-08 Zf Lenksysteme Gmbh Device for pressing steering rack into gear pinion of steering of motor car, has adjustment device including washer disks, where complete adjustment device is pre-assembled as mounting unit with thrust piece, washer and spring by spring pin
US8752445B2 (en) 2010-06-02 2014-06-17 Zf Lenksysteme Gmbh Device for pressing a toothed rack

Also Published As

Publication number Publication date
AUPQ821000A0 (en) 2000-07-13

Similar Documents

Publication Publication Date Title
KR100558807B1 (en) Mechanical transmission device for engine with variable volume displacement
EP0367119B1 (en) Rack and pinion steering device
US5400875A (en) Brake application mechanism for a disc brake
US20140260719A1 (en) Rack bar support device of a steering gear
JP2004232783A (en) Linear guide device
WO2001096167A1 (en) Rack yoke
KR20030081806A (en) Rack bar support device of steering system for vehicle
CA2038725C (en) Controlled deflection roll
JPH071067B2 (en) Pipe saddle for supporting pipes, structural members, etc.
KR950008992B1 (en) A rack and pinion gear assembly
US4762014A (en) Rack-pinion mechanism in steering device
CA2071085A1 (en) Rolling element cage constraint
JPH05215131A (en) Linear slide for linear motion device
JPH04370447A (en) Friction type power transmission device
JP2008049756A (en) Rack/pinion type steering device
JP2005147218A (en) Rolling base isolation support
JP4401628B2 (en) Linear guide device
JPH0323765B2 (en)
CN104249754A (en) Yoke clearance compensation device
JP2007062397A (en) Rack and pinion type steering device
JP2910886B2 (en) Bevel gear device
KR200285616Y1 (en) Automotive support yoke and rack bar clearance damping device
JP5109693B2 (en) Rack and pinion steering system
JP2007232056A (en) Telescopic shaft
KR100783907B1 (en) Clutch torsional damper

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP