JPS619636U

JPS619636U - spring clutch

Info

Publication number: JPS619636U
Application number: JP9261584U
Authority: JP
Inventors: 久秀湯下
Original assignee: Ricoh Co Ltd
Current assignee: Ricoh Co Ltd
Priority date: 1984-06-22
Filing date: 1984-06-22
Publication date: 1986-01-21
Also published as: JPH0227217Y2

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図は一般的なスプリングクラッチの構成を示す縦断
面図、第２図は従来のスプリングクラッチのカム部材端
面に設けられた位置決め突起の一例を示す斜視図、第３
図は本考案によるスプリングクラッチの実施例のカム部
材端面に設けられた位置決め突起を余す斜視図、第４図
はその側面図である。１・・・従動軸、３・・・駆動コア、４・・・従動コア
、５・・・コイルスプリング、６．１６・・・カム部材
、８・・・ソレ，／イド、９・・・位置決め板、１７ａ
，１７ｂ・・・位置決め突起。FIG. 1 is a longitudinal sectional view showing the configuration of a general spring clutch, FIG. 2 is a perspective view showing an example of a positioning protrusion provided on the end surface of a cam member of a conventional spring clutch, and FIG.
The figure is a perspective view of the embodiment of the spring clutch according to the present invention, leaving out the positioning protrusion provided on the end face of the cam member, and FIG. 4 is a side view thereof. DESCRIPTION OF SYMBOLS 1... Driven shaft, 3... Drive core, 4... Driven core, 5... Coil spring, 6.16... Cam member, 8... Sole, /id, 9... Positioning plate, 17a
, 17b... positioning protrusion.

Claims

[Scope of utility model registration request]

A coil spring is tightly wound around the outer peripheral surfaces of both the driving core and the driven core, which are coaxially provided adjacent to each other, and one end of the coil spring is hooked to the driven core,
The other end is hooked to a sleeve-like cam member that surrounds both cores with a gap, and a positioning plate that is displaced by turning on and off a solenoid is engaged with and released from a positioning protrusion provided on one end surface of the cam member. to restrain and release the rotation of the cam member, and in the restrained state, the inner diameter of the coil spring expands, the tightening force against the outer peripheral surface of the drive core is reduced, and the transmission of power from the drive core to the driven core is cut off, In a spring clutch, the coil spring tightens both cores when the cam member is released, and the friction force transmits power from the driving core to the driven core. 1A and B are provided with two positioning protrusions, and when the solenoid is off, the positioning member engages with the rotating protrusion A, but escapes from the B protrusion, and when the solenoid is on, the positioning member rotates B. A spring clutch characterized in that both protrusions are shaped so that they engage with the protrusion and escape from the A protrusion.