JPH01143461U

JPH01143461U -

Info

Publication number: JPH01143461U
Application number: JP3922288U
Authority: JP
Priority date: 1988-03-25
Filing date: 1988-03-25
Publication date: 1989-10-02

Description

[Brief explanation of the drawing]

第１図は、本考案の実施例を示すダンパプーリ
の正面図、第２図は、第１図の―断面図、第
３図は、本考案の模式図、第４図は、従来例を示
す模式図である。１……プーリハブ（板金製）、１ａ……円筒部
、１ｃ……延出部、５……クランク軸（出力軸）
、６……内部空間、７……ラバー、８……トーシ
ヨナル用ダンパマス、８ｂ……逃し凹部、９……
空隙、１０……第１の折り返し部、１１……第２
の折り返し部、１３……Ｖリブド・ベルト、１４
……延出部。 Fig. 1 is a front view of a damper pulley showing an embodiment of the present invention, Fig. 2 is a cross-sectional view of Fig. 1, Fig. 3 is a schematic diagram of the present invention, and Fig. 4 shows a conventional example. It is a schematic diagram. 1... Pulley hub (made of sheet metal), 1a... Cylindrical part, 1c... Extension part, 5... Crankshaft (output shaft)
, 6... Internal space, 7... Rubber, 8... Damper mass for torsional, 8b... Relief recess, 9...
void, 10...first folded part, 11...second
folded part, 13...V-ribbed belt, 14
...extension part.

Claims

[Scope of utility model registration request]

a proximal end fixed to the end of the output shaft of the engine;
A sheet metal pulley having a groove that engages the belt, a cylindrical portion between the base end opening at one end and the groove, and a belt engaging member that is fitted to the outer periphery of the cylindrical portion of the sheet metal pulley via a rubber member. In a damper pulley structure constituted by a torsional damper mass having a joint portion formed therein, the cylindrical portion of the sheet metal pulley is extended by a predetermined amount toward one end to form an extended portion;
A first folded part is formed at the distal end of the extending part, which is folded back toward the proximal end side with a predetermined gap on the outer periphery of the extended part, and is continued from the first folded part to one end side. A second folded part is formed which is folded back and overlaps the extending part in the output shaft direction, and the groove part is formed at the tip of the second folded part, while the fitting part of the torsional damper mass is extended from the second folded part. 1. A damper pulley structure, characterized in that the damper mass extends up to the second folded portion, and a relief recess corresponding to the second folded portion is formed in a side wall on one end side of the damper mass.