JPS58147991U

JPS58147991U - Traction hoisting device

Info

Publication number: JPS58147991U
Application number: JP4670882U
Authority: JP
Inventors: 茨木　隆; 西津　雅弘
Original assignee: 株式会社ニツチ
Priority date: 1982-03-30
Filing date: 1982-03-30
Publication date: 1983-10-04
Also published as: JPS6316716Y2

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]

第１図は本考案の実施例を示す一部切欠側面図、第２図
は手動レバーを作動位置に設定したときの手動ハンドル
部分を示す正面図、第３図はカム部材が第１位置に設定
されているときの手動ハンドル部分の断面図である。１・・・牽引巻上装置、３・・・ロードシーブ、４・・
・駆ｔｆＪＩＩＩ、１５・・・手動ハンドル、１６・・
・ラチェット機構、１９ａ、　　１９ｂ−・・支軸、２
０ａ、　２０ｂ−・・爪片、２３ａ、２３ｂ・・・弾発
部材、２５・・・カム部材、２６・・・支軸、３１・・
・手動レバー、３２・・・位置決め機構、３５・・・ス
トッパ機構。Fig. 1 is a partially cutaway side view showing an embodiment of the present invention, Fig. 2 is a front view showing the manual handle when the manual lever is set to the operating position, and Fig. 3 is a cam member in the first position. FIG. 4 is a cross-sectional view of the manual handle portion when it is set. 1... Traction hoisting device, 3... Road sheave, 4...
・KakutfJIII, 15...Manual handle, 16...
・Ratchet mechanism, 19a, 19b--Spindle, 2
0a, 20b--Claw piece, 23a, 23b--Resilient member, 25--Cam member, 26--Spindle, 31--
- Manual lever, 32... Positioning mechanism, 35... Stopper mechanism.

Claims

[Scope of Claim for Utility Model Registration] 1. A drive shaft is freely coupled to the gear of a ratchet mechanism consisting of a gear and a pair of pawls for rotating the gear in the forward or reverse direction, so as to freely reciprocate only in the axial direction. A load sheave is provided which can be switched between a free state and an interlocking state with respect to the drive shaft in response to forward or backward movement of the drive shaft, and one of the pair of pawls engages with the gear. a cam member that is rotated between a first position that allows the gear to be removed and a second position that allows both of these to be cut off from the gear;
The pair of pawls are attached to a manual handle that swings forward and backward around the gear via separate support shafts, and the positioning mechanism of the cam member and the pawl are attached to the manual handle. a resilient member that urges the cam member in the engaging direction; a manual lever for rotating the cam member is fixed to the support shaft that supports the cam member; and a resilient member is provided between the manual lever and the drive shaft. The traction hoisting device is further provided with a stopper mechanism that prevents forward movement of the drive shaft when the cam member is in the first position. 2. The stopper mechanism consists of a flange-shaped cover member fixed to the drive shaft and a locking piece integrally provided on the manual lever, and at the forward movement limit of the drive shaft, the cover member engages with the locking piece. The traction and hoisting device according to claim 1, which is configured to be located in a rotation path.