Daido Kogyo Co., Ltd.

Toshimitsu Yoshimura

Hitoshi Hamano

Hideaki Seki

Takehiko Hirose

Yoshio Kurokawa

A chain tensioner has a plunger () slidably fitted in a bottomed cylinder () formed in a housing (), and configured to resiliently urge the plunger () by a return spring () in the direction along which the plunger () is projected out from the cylinder (), wherein the chain tensioner is configured to attach an engagement clip () to the opening of the cylinder (), and to provide an engagement portion engageable with the engagement clip () to the end of the plunger () on the projection side thereof, so as to allow the engagement clip () and the engagement portion to engage with and disengage from each other corresponding to the position of rotation of the plunger ().

Chain tensioner

A chain tensioner () having a plunger () slidably assembled in a cylinder portion () together with a return spring (), the chain tensioner () further has a stopper plate () having a through-hole () formed therein, through which the plunger () is inserted; and a biasing member () disabling movement of the plunger (), by applying a biasing force to the end of the stopper plate () so as to incline the stopper plate (), the chain tensioner is configured to apply a hydraulic pressure of a hydraulic oil of an engine to the stopper plate (), so as to reduce the inclination of the stopper plate () against the biasing force applied by the biasing member (), to thereby allow movement of the plunger ().

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Ishikawa, Japan

Toshimitsu Yoshimura