JPS5893U

JPS5893U - Sprocket forming body

Info

Publication number: JPS5893U
Application number: JP9592081U
Authority: JP
Inventors: 杉野　安
Original assignee: 株式会社杉野鉄工所
Priority date: 1981-06-25
Filing date: 1981-06-25
Publication date: 1983-01-05

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図乃至第３図は本考案の第１実施例を示しており、
第１図はスプロケット形成体の使用状態を示す断面図、
第２図はスプロケット形成体の取付けを示す斜視説嬰図
、第３図はスプロケット形成体の取付は状態を示す断面
斜視図、第４図はスプロケット形成体の材料取りの１例
を示す平面図、第５図乃至第７図はスプロケット形成体
の取付は構造の第２例乃至第４例を示す夫々断面図、第
８図は本考案の第２実施例を示す斜視図、第９図及び第
１０図は本考案の第３実施例を示す夫々斜視図及び取付
は状態断面図である。１・・・クランク、４・・・スプロケット形成体、１０
・・・山、１１・・・谷、１２・・・歯、１３・・・切
欠き、１５・・・取付突起、４１・・・Ａ外周形成部、
４２・・・Ｂ内周形成部。「′ ２；バ第４図ｒｏ　　１１　１７1 to 3 show a first embodiment of the present invention,
FIG. 1 is a sectional view showing how the sprocket forming body is used;
Fig. 2 is a perspective view showing the installation of the sprocket forming body, Fig. 3 is a sectional perspective view showing the installation state of the sprocket forming body, and Fig. 4 is a plan view showing an example of material removal for the sprocket forming body. , FIGS. 5 to 7 are sectional views showing second to fourth examples of the structure for mounting the sprocket forming body, FIG. 8 is a perspective view showing the second embodiment of the present invention, and FIGS. FIG. 10 is a perspective view and a sectional view showing the installation state of the third embodiment of the present invention. 1... Crank, 4... Sprocket forming body, 10
... Mountain, 11 ... Valley, 12 ... Teeth, 13 ... Notch, 15 ... Mounting protrusion, 41 ... A outer periphery forming part,
42...B inner periphery forming part. ``'2; Figure 4 ro 11 17

Claims

[Scope of utility model registration request]

It has an outer periphery forming part A that becomes an outer periphery and an inner periphery forming part B that becomes an inner periphery by rolling it into an annular shape, and the outer periphery forming part A has peaks 10 and valleys 11 of a large number of teeth 12,
A sprocket forming body characterized in that a notch 13 is formed in the inner peripheral forming part B at a position corresponding to the valley 11 of the tooth 12.