JPS5867885U - Hydraulic cylinder protection device built into the telescopic boom - Google Patents

Hydraulic cylinder protection device built into the telescopic boom

Info

Publication number
JPS5867885U
JPS5867885U JP16217981U JP16217981U JPS5867885U JP S5867885 U JPS5867885 U JP S5867885U JP 16217981 U JP16217981 U JP 16217981U JP 16217981 U JP16217981 U JP 16217981U JP S5867885 U JPS5867885 U JP S5867885U
Authority
JP
Japan
Prior art keywords
boom
hydraulic cylinder
protection device
telescopic boom
device built
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.)
Pending
Application number
JP16217981U
Other languages
Japanese (ja)
Inventor
長島　保
Original Assignee
株式会社　多田野鉄工所
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　多田野鉄工所 filed Critical 株式会社　多田野鉄工所
Priority to JP16217981U priority Critical patent/JPS5867885U/en
Publication of JPS5867885U publication Critical patent/JPS5867885U/en
Pending legal-status Critical Current

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Landscapes

  • Component Parts Of Construction Machinery (AREA)
  • Jib Cranes (AREA)

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 the drawing]

第１図は油圧シリンダに設けた従来の角の説明図、第２
図は、本考案の１実施例を示す油圧シリンダ保護装置の
説明図、第３図、第４図は、本考案の他の実施例の説明
図である。 Ａ：伸縮ブーム、Ｂ：油圧シリンダ、３，４：ピン、６
：当接部、８ニスプリング。Figure 1 is an explanatory diagram of a conventional corner provided in a hydraulic cylinder, Figure 2
The figure is an explanatory diagram of a hydraulic cylinder protection device showing one embodiment of the present invention, and FIGS. 3 and 4 are explanatory diagrams of other embodiments of the present invention. A: Telescopic boom, B: Hydraulic cylinder, 3, 4: Pin, 6
: Contact part, 8 springs.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ２個以上のブーム筒を望遠鏡式に嵌挿してなる伸縮ブー
ム内にあって、当該ブーム筒を伸縮駆動するためにその
シリンダチューブ基端部並びにピストンロンド端部を夫
々ピンを介してブーム筒に枢着支持された油圧シリンダ
のシリンダチューブ先端部に伸縮ブームの内側上面方向
へスプリングによって付勢された当接部を配設したこと
を特徴とする伸縮ブームに内装した油圧シリンダの保護
装置。A telescopic boom is formed by fitting two or more boom tubes into each other in a telescopic manner, and in order to drive the boom tubes to extend and retract, the base end of the cylinder tube and the end of the piston rod are connected to the boom tube through pins, respectively. A protection device for a hydraulic cylinder installed in a telescoping boom, characterized in that a contact portion biased by a spring toward the inner upper surface of the telescoping boom is provided at the tip of the cylinder tube of the pivotally supported hydraulic cylinder.
JP16217981U 1981-10-29 1981-10-29 Hydraulic cylinder protection device built into the telescopic boom Pending JPS5867885U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16217981U JPS5867885U (en) 1981-10-29 1981-10-29 Hydraulic cylinder protection device built into the telescopic boom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16217981U JPS5867885U (en) 1981-10-29 1981-10-29 Hydraulic cylinder protection device built into the telescopic boom

Publications (1)

Publication Number Publication Date
JPS5867885U true JPS5867885U (en) 1983-05-09

Family

ID=29954509

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16217981U Pending JPS5867885U (en) 1981-10-29 1981-10-29 Hydraulic cylinder protection device built into the telescopic boom

Country Status (1)

Country Link
JP (1) JPS5867885U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0445879U (en) * 1990-08-23 1992-04-17

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0445879U (en) * 1990-08-23 1992-04-17

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