JPS60135700U

JPS60135700U - Grab actuation safety device

Info

Publication number: JPS60135700U
Application number: JP2414784U
Authority: JP
Inventors: 剛岡田
Original assignee: 日立造船株式会社
Priority date: 1984-02-22
Filing date: 1984-02-22
Publication date: 1985-09-09

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]

図面は本考案の一実施例を示し、第１図は昇降装置の全
体断面図、第２図はフレームグラブの平面図、第３図は
第２図の平面図、第４図は第２図のＡ−Ａ断面図、第５
図は第２図のＢ−Ｂ断面図、第６図は第２図のＣ−Ｃ断
面図、第７図は第２図のＤ−Ｄ断面図、第８図は第７図
の要部拡大図、第９図は第８図のＥ−Ｅ断面図である。１１・・・チェーン、１３・・・フレーム、１４・・・
ケージ吊上げ用フック、２１・・・水平軸、２３・・・
フック連結軸、２４・・・水平軸、２５・・・ばね、２
６・・・モードルシリンダ、３７・・・ストッパーピン
、３８・・・貫通長孔、３９・・・大径貫通孔部、４０
・・・小径貫通孔部、４１・・・フラット部分、４２・
・・ストッパー作動用ばね。２４　２２　　　　　３／　　ａｏ　　４／り’、” 、　ヵ　〆“ １／（、、，２！７２２The drawings show one embodiment of the present invention, in which Fig. 1 is an overall sectional view of the lifting device, Fig. 2 is a plan view of the frame grab, Fig. 3 is a plan view of Fig. 2, and Fig. 4 is a plan view of Fig. 2. A-A sectional view of 5th
The figure is a sectional view taken along line B-B in Figure 2, Figure 6 is a sectional view taken along line C-C in Figure 2, Figure 7 is a sectional view taken along line D-D in Figure 2, and Figure 8 is a main part of Figure 7. The enlarged view, FIG. 9, is a sectional view taken along the line EE in FIG. 11...Chain, 13...Frame, 14...
Cage lifting hook, 21...Horizontal shaft, 23...
Hook connecting shaft, 24...Horizontal shaft, 25...Spring, 2
6... Mordle cylinder, 37... Stopper pin, 38... Long through hole, 39... Large diameter through hole portion, 40
...Small diameter through hole part, 41...Flat part, 42.
・Spring for stopper operation. 24 22 3/ ao 4/ri',", ka 〆" 1/(,,,2!722

Claims

[Scope of utility model registration request]

A frame that is raised and lowered via a rope body, a plurality of cage lifting hooks that are swingably provided on this frame via a horizontal axis, and a hook that is attached between the upper ends of each hook via a horizontal axis. a connecting shaft; a cylinder device that operates the hook connecting shaft against a spring to close the hook; and a large diameter cylinder that is provided on the frame and nim so as to be movable up and down and that fits externally on the hook connecting shaft. A stopper pin having a substantially convex elongated through-hole consisting of a through-hole portion and a smaller diameter through-hole portion communicating with the large-diameter through-hole portion above the large-diameter through-hole portion, and a side surface of the hook connecting shaft. a flat portion that is provided in the hook and that fits into the small diameter through hole of the elongated through hole when the hook is in the closed position, and a flat portion of the hook connecting shaft that biases the stopper pin downward; 1. A grab actuation safety device comprising: a stopper actuating spring that causes a lower end of the stopper pin to protrude downward from a frame when the stopper pin is fitted into a small-diameter through-hole portion of the stopper pin.