JPS6456276A - Rear wheel steering device for four-wheel drive type vehicle - Google Patents

Rear wheel steering device for four-wheel drive type vehicle

Info

Publication number
JPS6456276A
JPS6456276A JP21578287A JP21578287A JPS6456276A JP S6456276 A JPS6456276 A JP S6456276A JP 21578287 A JP21578287 A JP 21578287A JP 21578287 A JP21578287 A JP 21578287A JP S6456276 A JPS6456276 A JP S6456276A
Authority
JP
Japan
Prior art keywords
angle
rotation
axis
gear
ball nut
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
JP21578287A
Other languages
Japanese (ja)
Other versions
JP2605730B2 (en
Inventor
Shin Koike
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP21578287A priority Critical patent/JP2605730B2/en
Publication of JPS6456276A publication Critical patent/JPS6456276A/en
Application granted granted Critical
Publication of JP2605730B2 publication Critical patent/JP2605730B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D7/00—Steering linkage; Stub axles or their mountings
    • B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
    • B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
    • B62D7/15—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels
    • B62D7/1518—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels comprising a mechanical interconnecting system between the steering control means of the different axles
    • B62D7/1527—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels comprising a mechanical interconnecting system between the steering control means of the different axles comprising only mechanical parts, i.e. without assistance means

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)

Abstract

PURPOSE:To heighten the transmission efficiency of the steering force, which is transmitted from an actuator to the right and left rear wheels, by putting the axis or rotation of a driven gear within an acute angle formed by the axis of rotation of a driving gear and the direction of the tooth-trace of both driving and driven gears. CONSTITUTION:A ball nut 41 is threadedly engaged with the outer periphery of a relay rod 23 via a ball. The ball nut 41 is supported by a housing 24 via bearings 42a and 42b in such a manner that the nut 41 can rotate but it is not allowed to move in the axial direction. A driven gear 46 is fixed on the outer periphery of the ball nut 41 by means of a screw. Twist angle beta1, which is formed by the axis of rotation L1 of a driving gear 36 and the direction L3 of the tooth trace of both driven gears 36 and 46, is set at an angle of about 80 deg. to 85 deg., which is larger than the friction angle of this gear mechanism. In addition, the axis of rotation L2 of the driven gear 46 is situated within the acute angle formed by both axes L1 and L3. For example, twist angle beta2 is set at an angle of 0 deg. to 75 deg., while shaft angle beta3 at about 10 deg..
JP21578287A 1987-08-28 1987-08-28 Rear wheel steering system for front and rear wheel steering vehicles Expired - Lifetime JP2605730B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21578287A JP2605730B2 (en) 1987-08-28 1987-08-28 Rear wheel steering system for front and rear wheel steering vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21578287A JP2605730B2 (en) 1987-08-28 1987-08-28 Rear wheel steering system for front and rear wheel steering vehicles

Publications (2)

Publication Number Publication Date
JPS6456276A true JPS6456276A (en) 1989-03-03
JP2605730B2 JP2605730B2 (en) 1997-04-30

Family

ID=16678140

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21578287A Expired - Lifetime JP2605730B2 (en) 1987-08-28 1987-08-28 Rear wheel steering system for front and rear wheel steering vehicles

Country Status (1)

Country Link
JP (1) JP2605730B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9452763B2 (en) 2013-02-21 2016-09-27 Mitsubishi Heavy Industries, Ltd. Guide-rail track vehicle, and method for changing distance between guidance wheels
KR20180099305A (en) * 2017-02-28 2018-09-05 현대모비스 주식회사 Rear wheel steering device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9452763B2 (en) 2013-02-21 2016-09-27 Mitsubishi Heavy Industries, Ltd. Guide-rail track vehicle, and method for changing distance between guidance wheels
JPWO2014128878A1 (en) * 2013-02-21 2017-02-02 三菱重工業株式会社 Track system vehicle
KR20180099305A (en) * 2017-02-28 2018-09-05 현대모비스 주식회사 Rear wheel steering device

Also Published As

Publication number Publication date
JP2605730B2 (en) 1997-04-30

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