JPS5988098U

JPS5988098U - hydraulic jack

Info

Publication number: JPS5988098U
Application number: JP18457182U
Authority: JP
Inventors: 溝口　一夫; 藤井　泰弘
Original assignee: カヤバ工業株式会社
Priority date: 1982-12-06
Filing date: 1982-12-06
Publication date: 1984-06-14

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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面第１図は従来の断面図、第２図はこの考案の第１実
施例の要部断面図、第３図は第２実施例の要部断面図で
ある。２・・・ペタル、３・・・タンク、５・・・油室、９・
・・圧力室、２２・・・チェック弁、２３．２４・・・
シート部、２６・・・チェック弁２２と相まって絞りを
構成する切欠部。FIG. 1 is a sectional view of a conventional device, FIG. 2 is a sectional view of a main part of a first embodiment of this invention, and FIG. 3 is a sectional view of a main part of a second embodiment. 2...petal, 3...tank, 5...oil chamber, 9...
...Pressure chamber, 22...Check valve, 23.24...
Seat portion, 26...A notch portion which together with the check valve 22 constitutes a throttle.

Claims

[Scope of utility model registration request]

While sucking oil from the tank into the oil chamber by the reciprocating motion of the plunger, the oil in the oil chamber is supplied to the pressure chamber for raising the ram, while the IJ-F valve is opened to drain the oil in the pressure chamber. In the hydraulic jack configured to lead the water to the tank port, in the passage process between the pressure chamber and the hydraulic jack,
A check valve is provided that is pressed against the seat when the flow velocity is high and separated from the seat when the flow velocity is slow, and when this check valve is pressed against the seat, the check valve and the seat are separated. Hydraulic jacks that work together to form an aperture.