JPS5576729A - Hydraulic jack control means in apparatus for stably supporting vehicle - Google Patents

Hydraulic jack control means in apparatus for stably supporting vehicle

Info

Publication number
JPS5576729A
JPS5576729A JP14948878A JP14948878A JPS5576729A JP S5576729 A JPS5576729 A JP S5576729A JP 14948878 A JP14948878 A JP 14948878A JP 14948878 A JP14948878 A JP 14948878A JP S5576729 A JPS5576729 A JP S5576729A
Authority
JP
Japan
Prior art keywords
hydraulic jack
oil
hydraulic
vehicle
valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP14948878A
Other languages
Japanese (ja)
Other versions
JPS6116844B2 (en
Inventor
Daijiro Sano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shinmaywa Industries Ltd
Original Assignee
Shin Meiva Industry Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shin Meiva Industry Ltd filed Critical Shin Meiva Industry Ltd
Priority to JP14948878A priority Critical patent/JPS5576729A/en
Publication of JPS5576729A publication Critical patent/JPS5576729A/en
Publication of JPS6116844B2 publication Critical patent/JPS6116844B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Actuator (AREA)

Abstract

PURPOSE: To constantly stably support a vehicle in a desired posture by forcibly locking by a mechanical means from the outside a hydraulic jack and a pilot check valve provided in a hydraulic circuit whereby a hydraulic pump and an oil reservoir are communicated with each other.
CONSTITUTION: When a handle 23 is turned in a tightening direction as a hydraulic jack J is kept in an extended state, a push rod 22 is slidingly moved to left so that an end portion of the push rod 22 collides with a spherical valve 19, which is thus brought into close contact with a surface 21 of a valve seat 13. As a result, a pilot check valve Vp is held in a locked state. At this time, the flow of an operation oil in an oil passage on the extension side is interrupted so that the hydraulic jack J is also hydraulically locked. Therefore, even when a change-over valve Vs is then shifted to right by mistake, and even when an oil leak or damage or breakage occurs in an operation oil supply system, the hydraulic jack J is never contracted. This allows a vehicle to be supported securely in a desired posture.
COPYRIGHT: (C)1980,JPO&Japio
JP14948878A 1978-12-01 1978-12-01 Hydraulic jack control means in apparatus for stably supporting vehicle Granted JPS5576729A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14948878A JPS5576729A (en) 1978-12-01 1978-12-01 Hydraulic jack control means in apparatus for stably supporting vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14948878A JPS5576729A (en) 1978-12-01 1978-12-01 Hydraulic jack control means in apparatus for stably supporting vehicle

Publications (2)

Publication Number Publication Date
JPS5576729A true JPS5576729A (en) 1980-06-10
JPS6116844B2 JPS6116844B2 (en) 1986-05-02

Family

ID=15476241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14948878A Granted JPS5576729A (en) 1978-12-01 1978-12-01 Hydraulic jack control means in apparatus for stably supporting vehicle

Country Status (1)

Country Link
JP (1) JPS5576729A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6086604U (en) * 1983-11-22 1985-06-14 株式会社小金井製作所 cylinder device
CN105060158A (en) * 2015-08-19 2015-11-18 张宏生 Double-acting hydraulic jack
US10736455B2 (en) 2016-07-11 2020-08-11 Espressions B.V. Pressing body and apparatus for obtaining fruit juice and/or fruit pulp from citrus fruit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6086604U (en) * 1983-11-22 1985-06-14 株式会社小金井製作所 cylinder device
JPH0439444Y2 (en) * 1983-11-22 1992-09-16
CN105060158A (en) * 2015-08-19 2015-11-18 张宏生 Double-acting hydraulic jack
US10736455B2 (en) 2016-07-11 2020-08-11 Espressions B.V. Pressing body and apparatus for obtaining fruit juice and/or fruit pulp from citrus fruit

Also Published As

Publication number Publication date
JPS6116844B2 (en) 1986-05-02

Similar Documents

Publication Publication Date Title
DE176442T1 (en) EXTENDABLE TRAILER COUPLING FOR ROAD VEHICLES AND RAIL VEHICLES.
GB1577578A (en) Hydraulic actuating devices for use with stabilising beams
WO2001069058A3 (en) Fluid loading system
CA2289772A1 (en) Method of handling a fluid
CA2049137A1 (en) Hydraulic steering system for vehicles
US3125352A (en) Collapsible strut
JPS5576729A (en) Hydraulic jack control means in apparatus for stably supporting vehicle
EP0361179A3 (en) Positioning device for accurately transferring work pieces between a transport vehicle and a stationary installation
GB1535284A (en) Self-levelling system for material handling implement
GB1413766A (en) Hydraulic control apparatus
JPS5410734A (en) Ink supply device for ink jet printer
US4132290A (en) Locking mechanism for movable vehicle members
JPS5643063A (en) Steering device for travelling vehicle
FR2418727A1 (en) Levelling arrangement for caravan - has four hydraulically controlled pivoted lever legs at corners and self-contained pump unit coupled to distributor
ES8205180A1 (en) Safety device for hoist equipment and appliances with platform or basket for carrying persons for aerial maintenance work
JPS5565775A (en) Change-over valve device
JPS5497932A (en) Device for controlling guide wheel of crawler vehicle
NL187820C (en) CONTROL VALVE ASSEMBLY FOR SUPPLYING LIQUID TO A TOOL, SUCH AS AN INFLATABLE PACKER, AND THEN CONTAINING THE SUPPLIED LIQUID.
ITVR960029A1 (en) STABILIZER FOOT WITH VARIABLE GEOMETRY, ESPECIALLY FOR EARTH-MOVING VEHICLES.
US4586424A (en) Hydraulic control arrangement
JPS5423876A (en) Master cylinder with hydraulic control valve
ATE144603T1 (en) DEVICE FOR TEMPORARILY CONNECTING A SOURCE OF A PRESSURE FLUID TO A CONSUMABLE ELEMENT
GB952955A (en) Detent
JPS568733A (en) Automatic greasing device for damp car and the like
JPS5917741Y2 (en) Automobile rear axle transport device