JPH0442491U

JPH0442491U -

Info

Publication number: JPH0442491U
Application number: JP8523690U
Authority: JP
Priority date: 1990-08-09
Filing date: 1990-08-09
Publication date: 1992-04-10

Description

[Brief explanation of the drawing]

第１図ないし第５図は実施例を示し、第１図Ａ
は、正面図、同図Ｂは同図Ａの一部破断平面図、
第２図Ａ，Ｂはそれぞれ外側リンクプレートの内
面側正面説明図と平面図、同図Ｃは同図ＡのＸ−
Ｘ線矢視断面図、第３図Ａ，Ｂはそれぞれ内側リ
ンクプレートの内面側正面説明図と平面図、同図
Ｃは同図ＡのＹ−Ｙ線矢視断面図、第４図は使用
状態説明図、第５図は第４図のＺ−Ｚ線矢視相当
の要部拡大断面説明図である。ｔ……深さ、１０……自転車用チエーン、１１
……外側リンクプレート、１１ａ……突出部、１
１ｂ……凹部、１１ｄ……面取り、１２……内側
リンクプレート、１２ｂ……面取り、１３……連
結ピン、１５……ローラ。 1 to 5 show embodiments, and FIG. 1A
is a front view, figure B is a partially cutaway plan view of figure A,
Figures 2A and 2B are a front explanatory view and a plan view of the inner side of the outer link plate, respectively, and Figure 2C is the X-
3A and 3B are respectively a front explanatory view and a plan view of the inner side of the inner link plate, FIG. FIG. 5 is an enlarged cross-sectional view of the main part taken along the Z-Z line in FIG. 4. t...Depth, 10...Bicycle chain, 11
...Outer link plate, 11a...Protrusion, 1
1b... recess, 11d... chamfer, 12... inner link plate, 12b... chamfer, 13... connecting pin, 15... roller.

Claims

[Claims for Utility Model Registration] 1. An inner link plate and an outer link plate are connected via a connecting pin with a roller,
A bicycle chain characterized in that a vertical protrusion is provided in the center of the outer link plate, and recesses are formed on both sides of the protrusion. 2. The bicycle chain according to claim 1, wherein the outer link plate and the inner link plate are chamfered on the inner surface of the central portion. 3. The bicycle chain according to claim 2, wherein the chamfer of the inner link plate has a constant depth.