JPS59108783U

JPS59108783U - folding crane

Info

Publication number: JPS59108783U
Application number: JP69583U
Authority: JP
Inventors: 鈴木　政利; 昌彦井口; 村井　俊夫; 建夫川村; 高野　肇
Original assignee: 東京電力株式会社; 株式会社竹中工務店
Priority date: 1983-01-07
Filing date: 1983-01-07
Publication date: 1984-07-21

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 the drawing]

図面は本考案の実施例を示す。第１図は全体の正面図、
第２図は主ブームおよび副ブームの一部−の拡大正面図
である。１・・・タワー、２・・・タワーの基部、３．　５．　
６・・・軸、４・・・タワーの上方部、１０・・・基台
、２０・・・主ブーム、２１・・・主ブームの基部、３
ｏ・・・フック、４０・・・副ブーム、４１・・・副ブ
ーム、４１・・・副ブームの先端部、４２・・・副ブー
ムの基部。The drawings show an embodiment of the invention. Figure 1 is the overall front view;
FIG. 2 is an enlarged front view of a portion of the main boom and sub-boom. 1... Tower, 2... Base of tower, 3. 5.
6... Axis, 4... Upper part of tower, 10... Base, 20... Main boom, 21... Base of main boom, 3
o... Hook, 40... Sub-boom, 41... Sub-boom, 41... Tip of sub-boom, 42... Base of sub-boom.

Claims

[Scope of utility model registration request]

The base 2 of the tower 1 is pivoted to the base 10 with a shaft 3, and the base 21 of the main boom 20 is pivoted to the upper part 4 of the tower 1 with a shaft 5 so that the main boom 20 can be folded downward. The base 42 of the sub-boom 40 is pivoted to the main boom 20 with a shaft 6 so that the tip 41 of the sub-boom 40 with the hook 30 suspended by a rope 31 can be folded upward.
The main boom 20 is folded inward about the axis 5 of the tower 1 so that it is approximately parallel to the longitudinal direction of the tower 1, and the sub boom 40 is A foldable crane characterized in that the main boom 20 is folded upward about the axis 6 of the main boom 20 so as to overlap the main boom 20 substantially parallel to the main boom 20.