JPH0367750U

JPH0367750U -

Info

Publication number: JPH0367750U
Application number: JP12533889U
Authority: JP
Priority date: 1989-10-26
Filing date: 1989-10-26
Publication date: 1991-07-02

Description

[Brief explanation of drawings]

第１図は、本考案の実施例を示すスプロケツト
の縦断面説明図である。第２図は、第１図に示す
スプロケツトのチエン巻きかけ部まわりの拡大断
面説明図である。第３図は、第１図に示すスプロ
ケツトの正面立面説明図である。第４図と第５図
とは、第１、第２外側リング部材と第１、第２内
側リング部材と第１、第２環状溝部の係合状態を
示す模式図である。第６図は、従来のチエンスプ
ロケツト構造のリング部材と環状溝部との係合状
態を示す模式図である。Ｓ……チエンスプロケツト構造、１……スプロ
ケツト、２……本体部、４……チエン巻きかけ部
、５……チエン、６，７……第１、第２側板、８
，９……第１、第２環状溝部、１１，１３……第
１、第２内側リング部材、１２，１４……第１、
第２外側リング部材。 FIG. 1 is an explanatory longitudinal cross-sectional view of a sprocket showing an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional explanatory view of the sprocket shown in FIG. 1 around the chain-wound part. 3 is a front elevational explanatory view of the sprocket shown in FIG. 1. FIG. FIGS. 4 and 5 are schematic diagrams showing the engaged states of the first and second outer ring members, the first and second inner ring members, and the first and second annular grooves. FIG. 6 is a schematic diagram showing a state of engagement between a ring member and an annular groove of a conventional chain sprocket structure. S... Chain sprocket structure, 1... Sprocket, 2... Main body, 4... Chain winding part, 5... Chain, 6, 7... First and second side plates, 8
, 9...First and second annular groove parts, 11, 13...First and second inner ring members, 12, 14...First,
a second outer ring member;

Claims

[Scope of utility model registration request]

Annular grooves are formed on both sides in the tooth width direction of the chain-wrapping part of the sprocket, and each annular groove has a circular outer ring member and a ring disposed inside the inner circumferential surface of the outer ring member. A chain sprocket structure characterized by being fitted with an oval inner ring member.