GB772682A - Improvements in and relating to power-assisted manual steering systems - Google Patents

Improvements in and relating to power-assisted manual steering systems

Info

Publication number
GB772682A
GB772682A GB37269/54A GB3726954A GB772682A GB 772682 A GB772682 A GB 772682A GB 37269/54 A GB37269/54 A GB 37269/54A GB 3726954 A GB3726954 A GB 3726954A GB 772682 A GB772682 A GB 772682A
Authority
GB
United Kingdom
Prior art keywords
motor
steering
clutch
carried
lost motion
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.)
Expired
Application number
GB37269/54A
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
Thompson Products 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
Priority claimed from US438817A external-priority patent/US2761326A/en
Application filed by Thompson Products Inc filed Critical Thompson Products Inc
Publication of GB772682A publication Critical patent/GB772682A/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
    • B62D5/00—Power-assisted or power-driven steering
    • B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
    • B62D5/043—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by clutch means between driving element, e.g. motor, and driven element, e.g. steering column or steering gear
    • B62D5/0433—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by clutch means between driving element, e.g. motor, and driven element, e.g. steering column or steering gear the clutch being of on-off type

Landscapes

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

Abstract

772,682. Electric follow-up systems. THOMPSON PRODUCTS, Inc. Dec. 23, 1954 [June 23, 1954], No. 37269/54. Class 40 (1). [Also in Groups XXXI and XXXIII] In a power-assisted manual steering system comprising a reversible electric motor 18 under the control of a manual steering member and a clutch 27, 28 for connecting the motor to the steering members and automatically operated upon starting and stopping of the motor, a lost motion connection 22 is provided between the motor and clutch to permit independent acceleration and deceleration of the motor. The invention is applicable to the steering of ships and aircraft, but as shown it is applied to a vehicle steering system comprising a steering gear 14, a steering shaft comprising portions 11. 12 interconnected by a lost motion coupling 13 and a steering wheel 10 on the portion 11. Mounted on the shaft portion 12 is a gear 17 meshing with a gear 32 carried by a shaft 30 to which are splined the clutch members 28 interleaved with the clutch members 27 splined to a housing 26. A plate carried by the housing 26 is separated from a plate 21 by balls 23 engaging ramped depressions in the plates, the plate 26 being connected to a wormwheel 20 by the lost motion connection 22 permitting up to 30 degrees relative rotation, and a worm 19 connected to the rotor of the electric motor 18 meshing with the wheel 20. One connection from the motor 18 leads to an earthed battery and the other two to contacts 40, 41 carried by the shaft portion 12, an earthed contact 42 being arranged between the contacts 40, 41 and carried by the shaft portion 11. In operation, depending on the direction of rotation of the portion 11, the lost motion in the coupling 13 is taken up and the contact 42 makes with either contact 40, 41 to energize the motor, thus causing rotation of the wheel 20, take up of the lost motion in the connection 22, and rotation of the plate 21 relative to the plate on the housing 26 thereby engaging the clutch 27, 28 to drive the portion 12 from the motor 18. Axial thrust of the clutch 27, 28 is transmitted through bearings 33, 34, 35 to a casing 16 rather than through the shaft 30 which is carried by sleeve bearings in the easing.
GB37269/54A 1954-06-23 1954-12-23 Improvements in and relating to power-assisted manual steering systems Expired GB772682A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US772682XA 1954-06-23 1954-06-23
US1119799XA 1954-06-23 1954-06-23
US438817A US2761326A (en) 1954-06-23 1954-06-23 Power steering mechanism

Publications (1)

Publication Number Publication Date
GB772682A true GB772682A (en) 1957-04-17

Family

ID=27373062

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37269/54A Expired GB772682A (en) 1954-06-23 1954-12-23 Improvements in and relating to power-assisted manual steering systems

Country Status (1)

Country Link
GB (1) GB772682A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2435379A1 (en) * 1978-09-08 1980-04-04 Bosch Gmbh Robert ELECTROHYDRAULIC ASSISTED STEERING
WO1984000199A1 (en) * 1982-06-28 1984-01-19 Peter Norton Coupling for drive shaft and servo-motor driven shaft
WO1990001640A1 (en) * 1988-08-12 1990-02-22 Volkswagen Aktiengesellschaft Friction clutch
US4921061A (en) * 1987-07-25 1990-05-01 Toyoda Koki Kabushiki Kaisha Electric power steering apparatus
US5063738A (en) * 1987-09-28 1991-11-12 Toyoda Koki Kabushiki Kaisha Pressure generation and responsive mechanism with high viscous fluid
GB2248809A (en) * 1990-08-14 1992-04-22 Danfoss As Vehicle steering system with manual and motor input.
GB2261860A (en) * 1991-10-30 1993-06-02 Honda Motor Co Ltd Pitman arm steering apparatus with variable steering angle ratio.
WO2007066095A1 (en) * 2005-12-06 2007-06-14 Trw Limited Electrical power steering assembly
CN105129065A (en) * 2015-08-12 2015-12-09 中电科（宁波）海洋电子研究院有限公司 Autopilot system based on electric steering wheel

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2435379A1 (en) * 1978-09-08 1980-04-04 Bosch Gmbh Robert ELECTROHYDRAULIC ASSISTED STEERING
WO1984000199A1 (en) * 1982-06-28 1984-01-19 Peter Norton Coupling for drive shaft and servo-motor driven shaft
US4458795A (en) * 1982-06-28 1984-07-10 Peter Norton Coupling for drive shaft and servo-motor driven shaft
US4921061A (en) * 1987-07-25 1990-05-01 Toyoda Koki Kabushiki Kaisha Electric power steering apparatus
US5063738A (en) * 1987-09-28 1991-11-12 Toyoda Koki Kabushiki Kaisha Pressure generation and responsive mechanism with high viscous fluid
US5147006A (en) * 1988-08-12 1992-09-15 Volkswagen Ag Friction clutch
WO1990001640A1 (en) * 1988-08-12 1990-02-22 Volkswagen Aktiengesellschaft Friction clutch
GB2248809A (en) * 1990-08-14 1992-04-22 Danfoss As Vehicle steering system with manual and motor input.
GB2248809B (en) * 1990-08-14 1994-08-03 Danfoss As Steering arrangement
GB2261860A (en) * 1991-10-30 1993-06-02 Honda Motor Co Ltd Pitman arm steering apparatus with variable steering angle ratio.
US5267625A (en) * 1991-10-30 1993-12-07 Honda Giken Kogyo Kabushiki Kaisha Steering apparatus with variable steering angle ratio for pitman arm steering mechanism
GB2261860B (en) * 1991-10-30 1995-08-09 Honda Motor Co Ltd Steering apparatus with variable steering angle ratio for pitman arm steering mechanism
WO2007066095A1 (en) * 2005-12-06 2007-06-14 Trw Limited Electrical power steering assembly
CN105129065A (en) * 2015-08-12 2015-12-09 中电科（宁波）海洋电子研究院有限公司 Autopilot system based on electric steering wheel

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