JPS60151892U - Crane boom extension device - Google Patents

Crane boom extension device

Info

Publication number
JPS60151892U
JPS60151892U JP4082184U JP4082184U JPS60151892U JP S60151892 U JPS60151892 U JP S60151892U JP 4082184 U JP4082184 U JP 4082184U JP 4082184 U JP4082184 U JP 4082184U JP S60151892 U JPS60151892 U JP S60151892U
Authority
JP
Japan
Prior art keywords
boom
tip
pin
boom extension
extension device
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
JP4082184U
Other languages
Japanese (ja)
Inventor
稲岡　正昭
Original Assignee
新明和工業株式会社
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 新明和工業株式会社 filed Critical 新明和工業株式会社
Priority to JP4082184U priority Critical patent/JPS60151892U/en
Publication of JPS60151892U publication Critical patent/JPS60151892U/en
Pending legal-status Critical Current

Links

Landscapes

  • 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 drawings]

図面は本考案の実施例を示すもので、第１図は多段ブー
ム全体を示す断面図、第２図は第１図Ａ−Ａ線よりの断
面図、第３図は固縛ピンの正面図、第４図乃至第６図は
多段ブーム伸長手順を示す側面図である。 ２・・・先端ブーム、３・・・第２ブーム、４・・・第
３ブーム、５・・・油圧シリンダ、６・・・連結材、１
２・・・固縛ピン。The drawings show an embodiment of the present invention; Fig. 1 is a sectional view showing the entire multistage boom, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a front view of the lashing pin. , FIGS. 4 to 6 are side views showing the multi-stage boom extension procedure. 2... Tip boom, 3... Second boom, 4... Third boom, 5... Hydraulic cylinder, 6... Connecting material, 1
2...Lashing pin.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）先端ブームと、該先端ブームを摺動自在に嵌挿す
る第２ブームと、該第２ブームを摺動自在に嵌挿する第
３ブームと、バレル基を前記第３ブーム基部に枢支連結
され、ピストンロンド先部に連結材を有する油圧シリン
ダと、前記連結材を第２ブームもしくは先端ブームと選
択的に固縛可能な固縛ピンとを備え、前記固縛ピン先端
には緩衝材を装着したことを特徴とするクレーンのブー
ム伸縮装置。(1) A tip boom, a second boom into which the tip boom is slidably inserted, a third boom into which the second boom is slidably inserted, and a barrel base that is pivoted to the third boom base. A hydraulic cylinder that is supported and connected and has a connecting member at the tip of the piston rond, and a lashing pin that can selectively lock the connecting member to a second boom or a tip boom, and a cushioning material is provided at the tip of the lashing pin. A crane boom extension and retraction device characterized by being equipped with. （２）前記固縛ピンは、ピン本体と、該ピン本体の先部
に連結する小径案内部とよりなり、緩衝材は前記小径案
内部先端に装着されたクツショ．ンゴムである実用新案
登録請求の範囲第１項記載のクレーンのブーム伸縮装置
。(2) The lashing pin consists of a pin body and a small diameter guide part connected to the tip of the pin body, and the cushioning material is a cushion attached to the tip of the small diameter guide part. 1. A boom extension and retraction device for a crane according to claim 1, which is made of rubber.
JP4082184U 1984-03-21 1984-03-21 Crane boom extension device Pending JPS60151892U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4082184U JPS60151892U (en) 1984-03-21 1984-03-21 Crane boom extension device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4082184U JPS60151892U (en) 1984-03-21 1984-03-21 Crane boom extension device

Publications (1)

Publication Number Publication Date
JPS60151892U true JPS60151892U (en) 1985-10-09

Family

ID=30550072

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4082184U Pending JPS60151892U (en) 1984-03-21 1984-03-21 Crane boom extension device

Country Status (1)

Country Link
JP (1) JPS60151892U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342366B2 (en) * 1973-04-03 1978-11-10
JPS5648395A (en) * 1979-09-27 1981-05-01 Shin Meiwa Ind Co Ltd Expansion device for boom in crane car

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5342366B2 (en) * 1973-04-03 1978-11-10
JPS5648395A (en) * 1979-09-27 1981-05-01 Shin Meiwa Ind Co Ltd Expansion device for boom in crane car

Similar Documents

Publication Publication Date Title
JPS60151892U (en) Crane boom extension device
JPS5984199U (en) cargo handling vehicle
JPS5825357U (en) Telescopic arm for earthworks
JPS6066487U (en) Article gripping device
JPS604647U (en) Oil passage structure of hydraulic cylinder in backhoe
JPS6110727U (en) tampon inserter
JPH0279395U (en)
JPS5954492U (en) boom device
JPS5845406U (en) Hydraulic cylinder with cushion mechanism
JPS5827284U (en) Cylinder protection device
JPS6040391U (en) Boom rope guide device
JPS5887788U (en) Crane boom
JPS60151897U (en) truck jack
JPS5951637U (en) Hydraulic cylinder for dump
JPS60126549U (en) Slide movement device for left and right lock pins
JPS5965097U (en) tunnel boring machine
JPS619610U (en) Cylinder
JPS58176196U (en) tube propulsion device
JPS5894752U (en) Loader bucket mounting device
JPS59165239U (en) dump truck
JPS5850127U (en) Hydraulic gate locking device
JPS6024905U (en) cylinder device
JPS58154754U (en) Attachment used for suction mechanism
JPS6145461U (en) Reach arm restraint device in reach shovel loader
JPS6058654U (en) Backhoe