JPS5851981U

JPS5851981U - Hydraulic operating devices such as tools

Info

Publication number: JPS5851981U
Application number: JP14600281U
Authority: JP
Inventors: 樫部　二郎
Original assignee: 日東造機株式会社
Priority date: 1981-10-02
Filing date: 1981-10-02
Publication date: 1983-04-08

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]

図面は本考案の実施例を示すもので、第１図は一部を省
略した側面図、第２図は油圧シリンダーの平面図、第３
図は第２図Ａ−Ａ線断面図である。図中、１は油圧ポンプ、２は油圧シリンダー、３は高圧
管、４は戻し管、５はシリンダ一体、６は支持体、ｌは
戻しスプリング、８は底部、９はピストン、１１はピス
トンロッド、１２は連通孔、１３は給油孔、１３ａは一
端、１３ｂは他端、１４は排油孔、１４ａは開口端、１
５は弁座、１６はスプリング、１７はボール弁、１８は
押圧子、ｉａａは上端部、１８ｂは下端部、２１はレバ
ー、２２は枢軸である。The drawings show an embodiment of the present invention; Fig. 1 is a partially omitted side view, Fig. 2 is a plan view of the hydraulic cylinder, and Fig. 3 is a partially omitted side view.
The figure is a sectional view taken along the line A-A in FIG. In the figure, 1 is a hydraulic pump, 2 is a hydraulic cylinder, 3 is a high pressure pipe, 4 is a return pipe, 5 is an integrated cylinder, 6 is a support body, l is a return spring, 8 is a bottom, 9 is a piston, and 11 is a piston rod. , 12 is a communication hole, 13 is an oil supply hole, 13a is one end, 13b is the other end, 14 is an oil drain hole, 14a is an open end, 1
5 is a valve seat, 16 is a spring, 17 is a ball valve, 18 is a pusher, iaa is an upper end, 18b is a lower end, 21 is a lever, and 22 is a pivot.

Claims

[Scope of utility model registration request]

The hydraulic pump and the hydraulic cylinder are connected by two reciprocating oil pipes, a high-pressure pipe and a return pipe, and a support body for holding tools, etc. is attached to the tip end of the hydraulic cylinder, and a support body is installed inside the cylinder. is provided with a piston rod that is placed under the action of a spring and moves reciprocatingly, the tip end of the piston rod can freely protrude into the support body, and the bottom of the integral cylinder has an oil supply hole communicating with the cylinder through a communication hole. an oil drain hole, one end of the oil supply hole is opened into the cylinder integrally, the other end is connected to the high pressure pipe, and the open end of the oil drain hole is connected to the return pipe, and the communication A ball valve is placed in the hole under the action of a spring and normally closes the valve seat provided in the communication hole, while a presser is slid on the bottom of the cylinder integrally facing the valve seat. the presser is movably inserted, the lower end of the presser is brought into contact with the ball valve, and the upper end of the presser is projected above the bottom;
A hydraulic actuating device for a tool or the like, characterized in that the upper end abuts a lever pivotally mounted on the bottom.