JPS6073678U

JPS6073678U - cab tilt device

Info

Publication number: JPS6073678U
Application number: JP16712583U
Authority: JP
Inventors: 稲葉　和茂
Original assignee: 日野自動車株式会社
Priority date: 1983-10-27
Filing date: 1983-10-27
Publication date: 1985-05-23

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図はダブルキャブを備えたキャブオーバエンジン型
車輛の部分概略側面図、第２図は従来例に係るキャブチ
ルト装置の要部縦断面図、第３図は本考案に係るキャブ
チルト装置の要部縦断面図である。１はキャブオーバエンジン型車輛、４はダブルキャブ、
２０はキャブチルト装置、２１は油圧シリンダ、２２は
油圧経路切換バルブ、２３はピストン、２４はピストン
ロッド、２５はシリンダ室、２５ｃは下端部、２５ｄは
上端部、２６はチェックバルブ、２６ａは弁体、２８は
中空室、２８ａは上端部、２８ｂは下端部、２９はピス
トン、３３はオイルリザーバタンク、３６は油圧ポ・ン
プ、Ｐｌは第１のポート、Ｐ２は第２のポートである。Fig. 1 is a partial schematic side view of a cab-over engine type vehicle equipped with a double cab, Fig. 2 is a vertical sectional view of the main part of a conventional cab tilt device, and Fig. 3 is a longitudinal sectional view of the main part of the cab tilt device according to the present invention. It is a front view. 1 is a cab over engine type vehicle, 4 is a double cab,
20 is a cab tilt device, 21 is a hydraulic cylinder, 22 is a hydraulic path switching valve, 23 is a piston, 24 is a piston rod, 25 is a cylinder chamber, 25c is a lower end, 25d is an upper end, 26 is a check valve, 26a is a valve body , 28 is a hollow chamber, 28a is an upper end, 28b is a lower end, 29 is a piston, 33 is an oil reservoir tank, 36 is a hydraulic pump, Pl is a first port, and P2 is a second port.

Claims

[Scope of utility model registration request]

In a cab-over-engine vehicle that uses a hydraulic cylinder to tilt the cab, the lower end of the cylinder chamber, where the piston slides back and forth in the vertical direction along with the piston rod, allows upward flow and restricts downward flow. a check valve that communicates with the check valve and is formed below the check valve, and a piston that pushes up the valve body of the check valve to open the check valve; A hydraulic cylinder is formed with a first port and a second port communicating with the respective parts, and an upper part of the cylinder chamber is opened to the atmosphere, and when the cab is tilted, pressure oil is supplied only to the first port. and a hydraulic path switching valve configured to supply pressure oil only to the second port and open the first port to an oil reservoir tank when the cab is lowered.