JPH0474181U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の実施例を示す自動車の４輪
操舵装置の概略構成図、第２図は後輪操舵装置の
機械部分を示す部分切欠き平面図、第３図は第２
図−線の拡大断面図、第４図は第２図−
線の拡大断面図、第５図は第４図−線の断面
図、第６図は第４図―線の断面図、第７図は
第６図と異なる状態を示す同図相当の図面、第８
図は第６図および第７図と異なる状態を示す同図
相当の図面、第９図は車速と後輪の相対操舵量と
の関係を示すグラフである。 １……前輪操舵装置、２……後輪操舵装置、３
……ハンドル、８……前輪、１４……車速センサ
ポンプ、２１……後部ラツク棒（後輪操舵棒）、
２８……後輪、４２……電動モータ、５０……最
大操舵量規制装置、５８……可変規制部材。 Fig. 1 is a schematic configuration diagram of a four-wheel steering system for an automobile showing an embodiment of this invention, Fig. 2 is a partially cutaway plan view showing the mechanical part of the rear-wheel steering system, and Fig.
Figure - Enlarged sectional view of the line, Figure 4 is Figure 2 -
5 is a sectional view taken along the line from FIG. 4, FIG. 6 is a sectional view taken along the line taken from FIG. 4, and FIG. 7 is an equivalent drawing showing a different state from FIG. 8th
This figure is a drawing corresponding to the same figure showing a state different from that of FIGS. 6 and 7, and FIG. 9 is a graph showing the relationship between vehicle speed and relative steering amount of the rear wheels. 1... Front wheel steering device, 2... Rear wheel steering device, 3
...Handlebar, 8...Front wheel, 14...Vehicle speed sensor pump, 21...Rear rack rod (rear wheel steering rod),
28... Rear wheel, 42... Electric motor, 50... Maximum steering amount regulating device, 58... Variable regulating member.

Claims (1)

【実用新案登録請求の範囲】 ハンドルの回転とその回転トルクに応じた油圧
により前輪を操舵する前輪操舵装置と、前輪の操
舵量に応じて電動モータで後輪操舵棒を移動させ
ることにより後輪を操舵する後輪操舵装置とを備
えた４輪操舵装置において、 後輪操舵装置に、後輪操舵棒の最大移動量を機
械的に制限しかつこの最大移動量の調整ができる
可変規制部材を有する最大操舵量規制装置が設け
られ、車速の高低に対応する作動油圧を発生する
車速センサポンプの作動油圧が大きくなるにした
がつて可変規制部材により機械的に制限される後
輪操舵棒の最大移動量が小さくなるように最大操
舵量規制装置が車速センサポンプの油圧回路に接
続されていることを特徴とする４輪操舵装置。[Scope of Claim for Utility Model Registration] A front wheel steering device that steers the front wheels using hydraulic pressure according to the rotation of the steering wheel and its rotational torque, and a front wheel steering device that steers the front wheels using hydraulic pressure according to the rotation of the steering wheel and the rotational torque of the steering wheel. In a four-wheel steering device equipped with a rear wheel steering device that steers a rear wheel steering device, the rear wheel steering device is provided with a variable regulating member that mechanically limits the maximum amount of movement of the rear wheel steering rod and can adjust this maximum amount of movement. A maximum steering amount regulating device is provided, and the maximum steering amount of the rear wheel steering rod is mechanically limited by a variable regulating member as the hydraulic pressure of a vehicle speed sensor pump that generates hydraulic pressure corresponding to high and low vehicle speed increases. A four-wheel steering device characterized in that a maximum steering amount regulating device is connected to a hydraulic circuit of a vehicle speed sensor pump so that the amount of movement is small.