JPS5895984U - oil jack - Google Patents

oil jack

Info

Publication number
JPS5895984U
JPS5895984U JP19033481U JP19033481U JPS5895984U JP S5895984 U JPS5895984 U JP S5895984U JP 19033481 U JP19033481 U JP 19033481U JP 19033481 U JP19033481 U JP 19033481U JP S5895984 U JPS5895984 U JP S5895984U
Authority
JP
Japan
Prior art keywords
ram
ring
spring
diameter
oil jack
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
JP19033481U
Other languages
Japanese (ja)
Other versions
JPS6127915Y2 (en
Inventor
横田　昌嗣
Original Assignee
株式会社マサダ製作所
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 株式会社マサダ製作所 filed Critical 株式会社マサダ製作所
Priority to JP19033481U priority Critical patent/JPS5895984U/en
Publication of JPS5895984U publication Critical patent/JPS5895984U/en
Application granted granted Critical
Publication of JPS6127915Y2 publication Critical patent/JPS6127915Y2/ja
Granted legal-status Critical Current

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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

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来のオイルジヤツキを示す縦断面図、第２図
はこの考案のオイルジヤツキの一実施例を示す縦断面図
である。 １・・・・・・受は金、２，１２・・・・・・第１ラム
、３゜１３・・・・・・第２ラム、１４・曲・リング溝
、１５・・間第１ばね状リング、１６・曲・リング溝、
１７・・間第２ばね状リング、１８・・・・・・揚程制
限カラー。FIG. 1 is a longitudinal sectional view showing a conventional oil jack, and FIG. 2 is a longitudinal sectional view showing an embodiment of the oil jack of this invention. 1...The receiver is gold, 2,12...The first ram, 3゜13...The second ram, 14.The curve/ring groove, 15...The first ram. Spring-like ring, 16/curve/ring groove,
17...Second spring-like ring, 18...Height limiting collar.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 内周面の径が一様な第２ラム内に摺動する外周面の径が
一様な第１ラムを具えるオイルジヤツキにおいて、外径
が第２ラムの前記内周面の径より小かつ第１ラムの前記
外周面の径より大で第１ラムの上端面附近の前記外周面
に設けたリング溝に装着された第１ばね状リングと、内
径が前記第１ばね状リングの外径より小で第２ラムの上
端面附近の内周面に設けたリング溝に装着された第２ば
ね状リングとからなり、第１ラムが下降するとき前記第
１ばね状リングが前記第２ばね状リング上に係合するよ
うに両ばね状リングが位置してなるラム脱落防止装置を
備えたことを特徴とするオイルジヤツキ。An oil jack comprising a first ram having a uniform outer peripheral surface diameter that slides within a second ram having a uniform inner peripheral surface diameter, the outer diameter being smaller than the diameter of the inner peripheral surface of the second ram, and a first spring-like ring that is larger than the diameter of the outer circumferential surface of the first ram and is attached to a ring groove provided on the outer circumferential surface near the upper end surface of the first ram; a second spring-like ring that is smaller and is attached to a ring groove provided on the inner circumferential surface near the upper end surface of the second ram, and when the first ram descends, the first spring-like ring engages the second spring-like ring. An oil jack characterized in that it is equipped with a ram fall-off prevention device in which both spring-shaped rings are positioned so as to be engaged with the shaped ring.
JP19033481U 1981-12-22 1981-12-22 oil jack Granted JPS5895984U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19033481U JPS5895984U (en) 1981-12-22 1981-12-22 oil jack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19033481U JPS5895984U (en) 1981-12-22 1981-12-22 oil jack

Publications (2)

Publication Number Publication Date
JPS5895984U true JPS5895984U (en) 1983-06-29
JPS6127915Y2 JPS6127915Y2 (en) 1986-08-19

Family

ID=30103922

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19033481U Granted JPS5895984U (en) 1981-12-22 1981-12-22 oil jack

Country Status (1)

Country Link
JP (1) JPS5895984U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3786462A1 (en) * 2019-09-02 2021-03-03 Hyva Holding BV A telescopic cylinder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US261822A (en) * 1882-08-01 Charles atkinson
US2618122A (en) * 1946-04-18 1952-11-18 Gratzmuller Jean Louis Telescopic hydraulic jack
GB1590773A (en) * 1976-08-20 1981-06-10 Telehoist Ltd Telescoping mechanisms

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US261822A (en) * 1882-08-01 Charles atkinson
US2618122A (en) * 1946-04-18 1952-11-18 Gratzmuller Jean Louis Telescopic hydraulic jack
GB1590773A (en) * 1976-08-20 1981-06-10 Telehoist Ltd Telescoping mechanisms

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3786462A1 (en) * 2019-09-02 2021-03-03 Hyva Holding BV A telescopic cylinder

Also Published As

Publication number Publication date
JPS6127915Y2 (en) 1986-08-19

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