JPS58184028U

JPS58184028U - spring clutch

Info

Publication number: JPS58184028U
Application number: JP8277682U
Authority: JP
Inventors: 今在家　康隆; 三重生　善夫
Original assignee: 今在家精工株式会社; 三興線材工業株式会社
Priority date: 1982-06-02
Filing date: 1982-06-02
Publication date: 1983-12-07

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 drawings]

図は本考案の実施例を示し、第１図は従動軸の７例を示
す斜桓図、第２図は原動軸の一例を示す斜視図、第３図
はスプリングの一例を示す斜視図、第４図はその組立状
態を示す部分断面図、第５図は第４図のＶ−Ｖ線断面図
、第６図は動力伝達部の拡大断面図である。１・・・原動軸、２・・・従動軸、３・・・外張り式ク
ラッチ用コイルスプリング、１４・・・外軸部、１５・
・・内周面、２２・・・内軸部、２３・・・係合溝、２
４・・・突起、２６・・・スプリング受は面、３１・・
・クラッチ面、３２・・・先端係止部。第３図第４図The figures show an embodiment of the present invention, in which Fig. 1 is a perspective view showing seven examples of driven shafts, Fig. 2 is a perspective view showing an example of a driving shaft, and Fig. 3 is a perspective view showing an example of a spring. FIG. 4 is a partial sectional view showing the assembled state, FIG. 5 is a sectional view taken along the line V--V in FIG. 4, and FIG. 6 is an enlarged sectional view of the power transmission section. DESCRIPTION OF SYMBOLS 1... Driving shaft, 2... Driven shaft, 3... Coil spring for external tension type clutch, 14... Outer shaft portion, 15...
...Inner peripheral surface, 22...Inner shaft portion, 23...Engagement groove, 2
4...Protrusion, 26...Spring receiver is surface, 31...
・Clutch surface, 32...Tip locking part. Figure 3 Figure 4

Claims

[Scope of utility model registration request]

A cylindrical or cylindrical inner shaft portion is provided on one of the driving shaft and the driven shaft, and a cylindrical outer shaft portion is provided on the other, and an outer shaft portion is provided on the inner shaft portion and a cylindrical gap is provided between them. A coil spring for an external clutch is interposed between the inner shaft portion and the outer shaft portion, and the coil spring is made of a wire rod having a clutch surface of a predetermined width on its outer circumferential surface. One end of the coil spring is non-rotatably locked to a locking part provided on the inner shaft part, and the other end is a free end, and the coil spring has a locking part other than the locking part of the coil spring. The inner circumferential surface of the coil spring is spaced apart from the outer circumferential surface of the inner shaft portion, and the clutch surface formed on the outer circumferential surface of the coil spring comes into surface contact with the inner circumferential surface of the outer shaft portion due to the elastic force of the coil spring itself. A spring clutch characterized by: