JPS59140280U

JPS59140280U - Hydraulic truck crane

Info

Publication number: JPS59140280U
Application number: JP3436183U
Authority: JP
Inventors: 宮沢　洋
Original assignee: 株式会社神戸製鋼所
Priority date: 1983-03-09
Filing date: 1983-03-09
Publication date: 1984-09-19
Also published as: JPS6323428Y2

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

[Brief explanation of drawings]

図は本考案の実施例を示し、第１図はジブ格納状態のブ
ームの部分側面図、第２図は第１図■−■線矢視図、第
３図はブーム先端部の斜視図、第４図はジブフット部の
斜視図、第５図乃至第８図はジブを固定ジブとして張出
す場合の張出し手順を説明するための側面図、第９図は
ジブを可動ジブとして張出す場合の張出し準備状態を示
すブームの側面図、第１０図ぼ第９図Ｘ−Ｘ線に沿う拡
大断面図、第１１図は張出し過程、第１２図は張出し完
了状態をテす側面図、第１３図はジブ横抱き方式をとる
場合の第１図相当図、第１４図は同ジブフット部の斜視
図、第１５図および第１６図は同ジブ張出し手順を説明
するための側面図である。１・・・伸縮ブーム、２・・・圧縮式ジブ、３・・・基
端ブーム、４・・・中間ブーム、５・・・先端ブーム、
１２゜１３・・・ジブフットピン、１４．１５・・・ジ
ブフット、１６．１６・・・ブラケット、１７．１７・
・・ジブフット取付部、２５・・・可動ジブ用ジブフッ
トピン。The figures show an embodiment of the present invention, in which Fig. 1 is a partial side view of the boom in the jib retracted state, Fig. 2 is a view taken along the line ■-■ in Fig. 1, and Fig. 3 is a perspective view of the tip of the boom. Figure 4 is a perspective view of the jib foot, Figures 5 to 8 are side views for explaining the procedure for extending the jib as a fixed jib, and Figure 9 is a diagram showing the procedure for extending the jib as a movable jib. 10 is an enlarged sectional view taken along the line X-X in FIG. 9; FIG. 11 is a side view of the boom showing the extended state; FIG. 12 is a side view showing the boom in the fully extended state; FIG. 13 14 is a perspective view of the jib foot section, and FIGS. 15 and 16 are side views for explaining the jib extension procedure. 1... Telescopic boom, 2... Compression type jib, 3... Base end boom, 4... Intermediate boom, 5... Tip boom,
12゜13... Jib foot pin, 14.15... Jib foot, 16.16... Bracket, 17.17.
... Jib foot mounting part, 25... Jib foot pin for movable jib.

Claims

[Scope of utility model registration request]

It is equipped with a telescoping boom consisting of a base end boom, an intermediate boom, and a tip boom, and a compression column type jib that extends and retracts from the telescoping boom, and this jib has bifurcated jib feet on both the left and right sides of the base end. In the hydraulic truck crane, the tip boom of the telescopic boom is provided with jib foot pins for extending the fixed jib, which can be engaged with the jib foot when the telescopic boom is contracted, on both the left and right sides of the boom point sheave block. On both sides of the tip of the intermediate boom in the telescopic boom, the tip has the above-mentioned jib foot,
A bracket is fixedly installed to protrude toward the movable jib, and the tip of the bracket is provided with a bifurcated jib foot attachment part for extending the movable jib that can be engaged with the jib foot pin when the telescopic boom is contracted. Hydraulic truck crane.