JPS6020971U

JPS6020971U - Hydraulic cab tilt device

Info

Publication number: JPS6020971U
Application number: JP11318983U
Authority: JP
Inventors: 秀樹奥
Original assignee: 日産ディーゼル工業株式会社
Priority date: 1983-07-22
Filing date: 1983-07-22
Publication date: 1985-02-13

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は先行技術に係る装置を示す全体構成図、第２図
は第１図の電気回路図、第３図および第４図はそれぞれ
チルト時および下降時の電気回路図、第５図ａは本考案
の１実施例の要部を示す構成図、第５図すは第５図ａの
Ｘ−Ｘ線矢視断面図、第６図は第５図の装置の電気回路
図、第７図ないし第１１図はこの実施例の作動状態を示
す電気回路図で第７図ないし第９図はキャブのチルト時
、第１０図はおよび第１１図はキャブの下降時の回路図
、第１２図ａは先行技術のホルダを示す概略図、第１２
図すは第１２図ａのＹ−Ｙ線矢視断面図である。１・・・キャブ、３・・・油圧シリンダ、５・・・油圧
ポンプ、６・・・方向切換弁、７・・・操作レバー、１
６・・・赤ランプ、１７・・・ブザー、２２．　２３・
・・リターンスプリング、２４・・・ホルダ。FIG. 1 is an overall configuration diagram showing a device according to the prior art, FIG. 2 is an electric circuit diagram of FIG. 1, FIGS. 3 and 4 are electric circuit diagrams during tilting and lowering, respectively, and FIG. 5 is a sectional view taken along the line X-X of FIG. 5a, FIG. 6 is an electrical circuit diagram of the device shown in FIG. 5, and FIG. 11 to 11 are electrical circuit diagrams showing the operating states of this embodiment. FIGS. 7 to 9 are circuit diagrams when the cab is tilted, FIGS. 10 and 11 are circuit diagrams when the cab is lowered, and FIGS. Figure a is a schematic diagram showing a prior art holder, No. 12
The figure is a sectional view taken along the line Y--Y in FIG. 12a. 1... Cab, 3... Hydraulic cylinder, 5... Hydraulic pump, 6... Directional switching valve, 7... Operating lever, 1
6...Red lamp, 17...Buzzer, 22. 23・
...Return spring, 24...Holder.

Claims

[Scope of utility model registration request]

In a hydraulic cab tilt device in which a cab is tilted by a hydraulic cylinder, a return spring biases a control lever of a directional control valve of a hydraulic pump that drives the hydraulic cylinder to a neutral position, and a return spring maintains the control lever in the neutral position. In addition to providing a holder, a switch is provided in the electric circuit of the hydraulic pump that works in conjunction with the operating lever and turns on when the operating lever is tilted to the ascending side or descending side, and detects that the operating lever has come off from the holder. A hydraulic or pressure type cab tilt device characterized by being provided with an alarm means for issuing an alarm when