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GB2012389A - Steering Mechanism - Google Patents

Steering Mechanism

Info

Publication number
GB2012389A
GB2012389A GB7900588A GB7900588A GB2012389A GB 2012389 A GB2012389 A GB 2012389A GB 7900588 A GB7900588 A GB 7900588A GB 7900588 A GB7900588 A GB 7900588A GB 2012389 A GB2012389 A GB 2012389A
Authority
GB
United Kingdom
Prior art keywords
sleeve
push rod
longitudinal displacement
groove
peg
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
GB7900588A
Other versions
GB2012389B (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 GB7900588A priority Critical patent/GB2012389B/en
Publication of GB2012389A publication Critical patent/GB2012389A/en
Application granted granted Critical
Publication of GB2012389B publication Critical patent/GB2012389B/en
Expired legal-status Critical Current

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
    • 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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • 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
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2093—Arrangements for driving the actuator using conical gears

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Power Steering Mechanism (AREA)

Abstract

In a steering gear assembly, a push rod (2) is mounted in a housing (1) to be capable of longitudinal displacement and is restrained from rotation by peg (14) engaging in a longitudinally extending straight groove (13) in the push rod. Rotatably mounted on the push rod (2) is a sleeve (5) which is restrained from longitudinal displacement in the housing and is rotatably driven by a bevel gear (9) on an input shaft (10) co-operating with a bevel gear (8) on the sleeve. Formed on the push rod (2) is a helical groove (15) the pitch of which is other than constant and a peg (16) on the sleeve (5) engages within the groove (15) so that upon rotation of the sleeve (5) relative movement induced between the peg (16) and groove (15) imparts longitudinal displacement to the push rod (2). The extent of longitudinal displacement of the rod (2) which is derived from each revolution of the sleeve (5) varies in accordance with the variations in the pitch of the helical channel (15) to provide a variable ratio for the gear assembly. <IMAGE>
GB7900588A 1977-12-28 1979-01-08 Gear assembly and a steering gear which includes such an assembly Expired GB2012389B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7900588A GB2012389B (en) 1977-12-28 1979-01-08 Gear assembly and a steering gear which includes such an assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5397077 1977-12-28
GB7900588A GB2012389B (en) 1977-12-28 1979-01-08 Gear assembly and a steering gear which includes such an assembly

Publications (2)

Publication Number Publication Date
GB2012389A true GB2012389A (en) 1979-07-25
GB2012389B GB2012389B (en) 1982-05-26

Family

ID=26267388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7900588A Expired GB2012389B (en) 1977-12-28 1979-01-08 Gear assembly and a steering gear which includes such an assembly

Country Status (1)

Country Link
GB (1) GB2012389B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322986A (en) 1978-11-27 1982-04-06 Cam Gears Limited Variable ratio rack and pinion gear
FR2803357A1 (en) * 1999-12-30 2001-07-06 Valeo CONTROL UNIT FOR ROBOTIZED GEARBOX
FR2803358A1 (en) * 1999-12-30 2001-07-06 Valeo Gear change actuator for vehicle gearbox includes electronically controlled motor with threaded shaft displacing output actuator
FR2861154A1 (en) * 2004-11-17 2005-04-22 Valeo Embrayages Gear change actuator for vehicle gearbox includes electronically controlled motor with threaded shaft displacing output actuator
FR2861153A1 (en) * 2004-11-17 2005-04-22 Valeo Embrayages Gear change actuator for vehicle gearbox includes electronically controlled motor with threaded shaft displacing output actuator
CN101549710B (en) * 2009-05-08 2011-03-16 上海汽车集团股份有限公司 Vehicle steering gear

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4322986A (en) 1978-11-27 1982-04-06 Cam Gears Limited Variable ratio rack and pinion gear
FR2803357A1 (en) * 1999-12-30 2001-07-06 Valeo CONTROL UNIT FOR ROBOTIZED GEARBOX
FR2803358A1 (en) * 1999-12-30 2001-07-06 Valeo Gear change actuator for vehicle gearbox includes electronically controlled motor with threaded shaft displacing output actuator
WO2001050041A3 (en) * 1999-12-30 2002-04-04 Valeo Control assembly for a robotised gearbox
FR2861154A1 (en) * 2004-11-17 2005-04-22 Valeo Embrayages Gear change actuator for vehicle gearbox includes electronically controlled motor with threaded shaft displacing output actuator
FR2861153A1 (en) * 2004-11-17 2005-04-22 Valeo Embrayages Gear change actuator for vehicle gearbox includes electronically controlled motor with threaded shaft displacing output actuator
CN101549710B (en) * 2009-05-08 2011-03-16 上海汽车集团股份有限公司 Vehicle steering gear

Also Published As

Publication number Publication date
GB2012389B (en) 1982-05-26

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Legal Events

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