GB2013304A - Rack and pinion assembly - Google Patents

Rack and pinion assembly

Info

Publication number
GB2013304A
GB2013304A GB7902189A GB7902189A GB2013304A GB 2013304 A GB2013304 A GB 2013304A GB 7902189 A GB7902189 A GB 7902189A GB 7902189 A GB7902189 A GB 7902189A GB 2013304 A GB2013304 A GB 2013304A
Authority
GB
United Kingdom
Prior art keywords
rack
bearing member
pinion
housing
engagement
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.)
Granted
Application number
GB7902189A
Other versions
GB2013304B (en
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.)
TRW Steering Systems Ltd
Original Assignee
TRW Steering Systems Ltd
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 TRW Steering Systems Ltd filed Critical TRW Steering Systems Ltd
Priority to GB7902189A priority Critical patent/GB2013304B/en
Publication of GB2013304A publication Critical patent/GB2013304A/en
Application granted granted Critical
Publication of GB2013304B publication Critical patent/GB2013304B/en
Expired 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
    • F16H—GEARING
    • F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
    • F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
    • F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
    • 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
    • F16H55/283—Special devices for taking up backlash using 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
    • F16H2055/281—Cylindrical or half-cylindrical bushings around the rack, e.g. using special wedges to reduce play

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

In a rack and pinion assembly a rack bar (1) is supported in engagement with a pinion (4) by a resilient plastics moulded bearing member (6) of saddle shape which straddles the rack bar on its side remote from the rack (3) and preferably opposite to the region of engagement between the rack and pinion. The bearing member (6) straddles the rack bar to restrain lateral displacement of the bar in the direction of the pinion axis (4a) and can be pre- loaded upon assembly with the rack bar to constantly bias the rack (3) into engagement with the pinion. Inter-engaging projections and recesses between the bearing member (6) and the housing (2) serve to locate and restrain the bearing member (6) from displacement relative to the housing (2) and the bearing member is seated in a recess (10) which additionally restrains its longitudinal displacement relative to the housing (2). Location of the bearing member (6) in the housing (2) may be achieved by deformation of that member. <IMAGE>
GB7902189A 1978-01-25 1979-01-22 Rack and pinion assembly Expired GB2013304B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7902189A GB2013304B (en) 1978-01-25 1979-01-22 Rack and pinion assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB299678 1978-01-25
GB7902189A GB2013304B (en) 1978-01-25 1979-01-22 Rack and pinion assembly

Publications (2)

Publication Number Publication Date
GB2013304A true GB2013304A (en) 1979-08-08
GB2013304B GB2013304B (en) 1982-06-30

Family

ID=26237911

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7902189A Expired GB2013304B (en) 1978-01-25 1979-01-22 Rack and pinion assembly

Country Status (1)

Country Link
GB (1) GB2013304B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4369669A (en) * 1980-07-23 1983-01-25 Cam Gears Limited Rack and pinion assembly
WO2001096167A1 (en) * 2000-06-15 2001-12-20 Bishop Innovation Limited Rack yoke
EP1681494A1 (en) * 2005-01-17 2006-07-19 de Pretto, Alain Pressure yoke for guiding a rack
EP1808355A1 (en) * 2006-01-12 2007-07-18 TRW ITALIA S.p.A. Steering group with longitudinally extended support element
WO2019129865A1 (en) * 2017-12-29 2019-07-04 Saint-Gobain Performance Plastics Pampus Gmbh Steering assembly

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4369669A (en) * 1980-07-23 1983-01-25 Cam Gears Limited Rack and pinion assembly
WO2001096167A1 (en) * 2000-06-15 2001-12-20 Bishop Innovation Limited Rack yoke
EP1681494A1 (en) * 2005-01-17 2006-07-19 de Pretto, Alain Pressure yoke for guiding a rack
FR2880935A1 (en) * 2005-01-17 2006-07-21 Pretto Alain De GUIDING PUSHER FOR A CREMAILLIER BAR OR THE LIKE
EP1808355A1 (en) * 2006-01-12 2007-07-18 TRW ITALIA S.p.A. Steering group with longitudinally extended support element
WO2019129865A1 (en) * 2017-12-29 2019-07-04 Saint-Gobain Performance Plastics Pampus Gmbh Steering assembly
KR20200093619A (en) * 2017-12-29 2020-08-05 생―고뱅 퍼포먼스 플라스틱스 팜푸스 게엠베하 Steering assembly
CN111629952A (en) * 2017-12-29 2020-09-04 圣戈班性能塑料帕姆普斯有限公司 Steering assembly
US10933904B2 (en) 2017-12-29 2021-03-02 Saint-Gobain Performance Plastics Pampus Gmbh Steering assembly
KR102321561B1 (en) 2017-12-29 2021-11-08 생―고뱅 퍼포먼스 플라스틱스 팜푸스 게엠베하 steering assembly

Also Published As

Publication number Publication date
GB2013304B (en) 1982-06-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee