JPS63142273U

JPS63142273U -

Info

Publication number: JPS63142273U
Application number: JP3439487U
Authority: JP
Priority date: 1987-03-11
Filing date: 1987-03-11
Publication date: 1988-09-20

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す後車輪の正面
図、第２図は第１図の上面図、第３図はロツク状
態の要部の断面図、第４図はロツク解除状態の要
部の断面図、第５図は第３図の要部の拡大断面図
、第６図は第４図の要部の拡大断面図、第７図は
油圧およびエア回路図、第８図は電気回路図であ
る。４……ロツクレバー、４ａ，５ｂ……ピン孔、
５……ブラケツト、６……ロツクピン、７……エ
アシリンダ、８……ロツク検出スイツチ、９……
ロツク解除検出スイツチ、１６……補助油圧シリ
ンダ。 Fig. 1 is a front view of the rear wheel showing an embodiment of the present invention, Fig. 2 is a top view of Fig. 1, Fig. 3 is a sectional view of the main parts in the locked state, and Fig. 4 is the unlocked state. 5 is an enlarged sectional view of the main part of Fig. 3, Fig. 6 is an enlarged sectional view of the main part of Fig. 4, Fig. 7 is a hydraulic and air circuit diagram, and Fig. 8 is an enlarged sectional view of the main part of Fig. 4. It is an electrical circuit diagram. 4... Lock lever, 4a, 5b... pin hole,
5...Bracket, 6...Lock pin, 7...Air cylinder, 8...Lock detection switch, 9...
Lock release detection switch, 16...Auxiliary hydraulic cylinder.

Claims

[Scope of utility model registration request]

In a four-wheel steering vehicle, a fluid actuator locks and unlocks a tapered lock pin by engaging and disengaging it from a tapered pin hole provided in a rear wheel and a fixing member for the rear wheel, and a fluid actuator that releases the lock pin when the lock is released. 1. A rear wheel steering lock device comprising: an auxiliary fluid actuator that presses in a direction;