JPS62139014U

JPS62139014U -

Info

Publication number: JPS62139014U
Application number: JP2714586U
Authority: JP
Priority date: 1986-02-25
Filing date: 1986-02-25
Publication date: 1987-09-02

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例の断面図、第２図
はそのドラムの正面図、第３図はその部分分解斜
視図、第４図はその灯具が上死点に達した状態の
部分断面図、第５図はその灯具が下降中の部分断
面図、第６図はその逆巻き防止部材の斜視図、第
７図および第８図はその逆巻き検出部材の簡略側
面図および平面図、第９図はそのロープが正常に
巻回された状態の部分側面図、第１０図はそのロ
ープが逆巻きされた状態のドラムの側面図、第１
１図はそのロープが逆巻きされた状態の部分側面
図である。１０……ロープ、１２……ドラム、１４……灯
具、１８……駆動装置、２０……たるみ検出スイ
ツチ、２２……逆巻き検出部材。 Figure 1 is a sectional view of an embodiment of this invention, Figure 2 is a front view of the drum, Figure 3 is a partially exploded perspective view of the drum, and Figure 4 is a section of the lamp when it reaches top dead center. 5 is a partial sectional view of the lamp while it is descending; FIG. 6 is a perspective view of the reverse winding prevention member; FIGS. 7 and 8 are a simplified side view and plan view of the reverse winding detecting member; Figure 9 is a partial side view of the drum with the rope wound normally; Figure 10 is a side view of the drum with the rope reversely wound;
Figure 1 is a partial side view of the rope in a reversely wound state. DESCRIPTION OF SYMBOLS 10...Rope, 12...Drum, 14...Lamp, 18...Drive device, 20...Sag detection switch, 22...Reverse winding detection member.

Claims

[Scope of utility model registration request]

A drum on which a rope is unwound and freely wound, a lamp hanging from the rope unwound from this drum,
a drive device for rotationally driving the front drum; a slack detection switch that detects slack in the rope and performs an off operation to stop the drive operation of the drive device; and a reverse winding detection member that turns off the slack detection switch when it comes into contact with a reversely wound rope.