JPH01159697U - - Google Patents

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Publication number
JPH01159697U
JPH01159697U JP3721489U JP3721489U JPH01159697U JP H01159697 U JPH01159697 U JP H01159697U JP 3721489 U JP3721489 U JP 3721489U JP 3721489 U JP3721489 U JP 3721489U JP H01159697 U JPH01159697 U JP H01159697U
Authority
JP
Japan
Prior art keywords
ram
piston
air chamber
hydraulic jack
lower ram
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
JP3721489U
Other languages
English (en)
Other versions
JPH0423907Y2 (ja
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 filed Critical
Priority to JP1989037214U priority Critical patent/JPH0423907Y2/ja
Publication of JPH01159697U publication Critical patent/JPH01159697U/ja
Application granted granted Critical
Publication of JPH0423907Y2 publication Critical patent/JPH0423907Y2/ja
Expired legal-status Critical Current

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  • Actuator (AREA)

Description

【図面の簡単な説明】
添附図面は本考案の実施の一態様に係り、第1
図は回路図、第2図は油圧ジヤツキの縦断正面図
、第3図は平面図、第4図は一部縦断側面図であ
る。 2……ラムシリンダ、3,4……ラム、5,3
2……ピストン、10……エアー源、12……ポ
ンプ、19……タンク、22,23……通孔。

Claims (1)

    【実用新案登録請求の範囲】
  1. ラムシリンダ内にピストンを介してロアーラム
    が伸縮自在に挿入され、ロアーラム内にピストン
    を介してアツパーラムが伸縮自在に挿入されてい
    る多段式油圧ジヤツキに於て、各ラムのピストン
    下部油室はポンプもしくはタンクに選択的に連結
    され、ロアーラムのピストン上部エアー室はラム
    シリンダに設けた通孔を介してエアー源もしくは
    大気に選択的に連結され、アツパーラムのピスト
    ン上部エアー室はロアーラムに設けた通孔を介し
    てロアーラムのピストン上部エアー室又は大気と
    選択的に開閉される油圧ジヤツキ。
JP1989037214U 1989-03-30 1989-03-30 Expired JPH0423907Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989037214U JPH0423907Y2 (ja) 1989-03-30 1989-03-30

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989037214U JPH0423907Y2 (ja) 1989-03-30 1989-03-30

Publications (2)

Publication Number Publication Date
JPH01159697U true JPH01159697U (ja) 1989-11-06
JPH0423907Y2 JPH0423907Y2 (ja) 1992-06-04

Family

ID=31263795

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989037214U Expired JPH0423907Y2 (ja) 1989-03-30 1989-03-30

Country Status (1)

Country Link
JP (1) JPH0423907Y2 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0424590U (ja) * 1990-06-21 1992-02-27
JP2012136318A (ja) * 2010-12-27 2012-07-19 Onodani Kiko Kk 移動式簡易型車両用ジャッキ

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5152787U (ja) * 1974-10-18 1976-04-22

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5152787U (ja) * 1974-10-18 1976-04-22

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0424590U (ja) * 1990-06-21 1992-02-27
JP2012136318A (ja) * 2010-12-27 2012-07-19 Onodani Kiko Kk 移動式簡易型車両用ジャッキ

Also Published As

Publication number Publication date
JPH0423907Y2 (ja) 1992-06-04

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