JPS6348671U

JPS6348671U -

Info

Publication number: JPS6348671U
Application number: JP14378186U
Authority: JP
Priority date: 1986-09-19
Filing date: 1986-09-19
Publication date: 1988-04-02
Also published as: JPH0439811Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例に係る四輪操舵装置
を示す回路図、第２図は本考案に係るパワーシリ
ンダを示す横断面図、第３図乃至第６図はそれぞ
れ本考案の他の実施例を示す回路図、第７図は従
来例としてのサスペンシヨン機構を示す概略図、
第８図は従来例としての後輪用転舵機構を示す概
略図である。１……サスペンシヨン機構、２……転舵機構、
３……油圧源、４（４ａ乃至４ｇ）……分流弁、
５……タンク、１０……サスペンシヨンシリンダ
、２０……パワーシリンダ、２０ａ……シリンダ
体、２０ｂ……隔壁、２０ｃ，２０ｄ……ピスト
ン、２０ｅ，２０ｆ……油室、２０ｇ，２０ｈ…
…ロツド体、２０ｉ，２０ｊ……スプリング、２
１……制御弁、３０，３１……ポンプ、ＰＳ……
パワーステアリング機構、Ｔ……車輪。 FIG. 1 is a circuit diagram showing a four-wheel steering device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a power cylinder according to the present invention, and FIGS. 7 is a schematic diagram showing a suspension mechanism as a conventional example,
FIG. 8 is a schematic diagram showing a rear wheel steering mechanism as a conventional example. 1... Suspension mechanism, 2... Steering mechanism,
3... Hydraulic source, 4 (4a to 4g)... Diversion valve,
5... Tank, 10... Suspension cylinder, 20... Power cylinder, 20a... Cylinder body, 20b... Partition wall, 20c, 20d... Piston, 20e, 20f... Oil chamber, 20g, 20h...
...rod body, 20i, 20j...spring, 2
1... Control valve, 30, 31... Pump, PS...
Power steering mechanism, T...wheel.

Claims

[Scope of Claim for Utility Model Registration] (1) The rear wheels can be steered by operating a rear wheel steering mechanism disposed on the rear wheel side of a vehicle having an appropriate hydraulic actuation mechanism. In the four-wheel steering device, the rear wheel steering mechanism includes a power cylinder, and the power cylinder has a partition wall disposed at the center of the cylinder body, and a partition wall arranged between the partition wall and the partition wall. It has left and right oil chambers partitioned by pistons housed on the left and right sides of the cylinder body, each of which has a tip that passes through the outer end of the cylinder body and is connected to the wheel side. Each of the piston bodies is provided with a spring that biases each piston body against the partition wall, and each oil chamber of the power cylinder is provided with a spring that biases each piston body against the partition wall. A four-wheel steering device characterized in that the four-wheel steering device is configured such that pressure oil is supplied from an appropriate hydraulic pressure source to be diverted to an appropriate hydraulic operating mechanism, and is diverted by a diversion valve. (2) The four-wheel steering system according to claim 1, which is a suspension mechanism that enables attitude control of the vehicle by having appropriate hydraulic actuating mechanisms disposed at each of the four wheels of the vehicle. . (3) The four-wheel steering system according to claim 1, which is a power steering mechanism in which an appropriate hydraulic operating mechanism is disposed on the front wheels of a vehicle to enable steering of the front wheels. (4) The four-wheel steering system according to claim 1, wherein a steering mechanism having the same configuration as a rear wheel steering mechanism is disposed on the front wheel side of a vehicle. (5) The four-wheel steering system according to claim 1, wherein the hydraulic power source includes a dual pump.