JPS6413906U

JPS6413906U -

Info

Publication number: JPS6413906U
Application number: JP10927387U
Authority: JP
Priority date: 1987-07-16
Filing date: 1987-07-16
Publication date: 1989-01-24

Description

[Brief explanation of the drawing]

図面は本考案に係る作業車の実施例を示し、第
１図は昇降連結装置の縦断側面図、第２図は昇降
連結装置の平面図、第３図はリミツトスイツチの
配設部を示す一部切欠き側面図、第４図はリミツ
トスイツチの配設部を示す一部切欠き横断平面図
、第５図は油圧回路図、第６図は電気回路図、第
７図は作業車の全体側面図である。１２……流体圧シリンダ、１３……流体圧ポン
プ、１４……切換弁、１６……電動モータ、２５
……リミツトスイツチ、Ａ……昇降連結装置、Ｂ
……作業装置。 The drawings show an embodiment of the working vehicle according to the present invention, FIG. 1 is a vertical side view of the lifting coupling device, FIG. 2 is a plan view of the lifting coupling device, and FIG. 3 is a part showing the arrangement part of the limit switch. Fig. 4 is a partially cutaway cross-sectional plan view showing the arrangement of the limit switch, Fig. 5 is a hydraulic circuit diagram, Fig. 6 is an electrical circuit diagram, and Fig. 7 is an overall side view of the work vehicle. It is. 12...Fluid pressure cylinder, 13...Fluid pressure pump, 14...Switching valve, 16...Electric motor, 25
... Limit switch, A ... Lifting connection device, B
...Working equipment.

Claims

[Scope of utility model registration request]

A lifting connection device A for connecting the working device B to the traveling machine so that it can be raised and lowered, and the lifting connection device A
A work vehicle is equipped with a fluid pressure unit C that includes a fluid pressure cylinder 12 that drives and lowers the fluid pressure cylinder 12, a fluid pressure pump 13 that supplies pressure fluid to the fluid pressure cylinder 12, and a switching valve 14 that operates the fluid pressure cylinder 12. The fluid pressure cylinder 12 is configured as a single-acting type, and the switching valve 14 is an electromagnetic type that can be freely switched between a state in which the pressure fluid in the cylinder chamber of the fluid pressure cylinder 12 is discharged and a state in which the discharge is stopped. A two-position switching valve 14 is provided, and an electric motor 16 is provided to drive the fluid pressure pump 13, and when the working device B is lowered to the lower limit position, the switching valve 14 is activated to detect and stop discharging. A working vehicle in which a limit switch 25 for switching operation is attached to the traveling body so that its position can be changed.