Chain tensioner
First Claim
1. A chain tensioner having a plunger slidably fitted in a bottomed cylinder formed in a housing, and configured to resiliently urge the plunger by a spring in the direction along which the plunger is projected out from the cylinder,the chain tensioner being 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, wherein the plunger has a ratchet formed on the outer circumferential surface thereof in the longitudinal direction, so as to allow the engagement clip, released from the engagement portion as the plunger rotates, to engage with the ratchet.
1 Assignment
0 Petitions
Accused Products
Abstract
A chain tensioner has a plunger (14) slidably fitted in a bottomed cylinder (12) formed in a housing (11), and configured to resiliently urge the plunger (14) by a return spring (13) in the direction along which the plunger (14) is projected out from the cylinder (12), wherein the chain tensioner is configured to attach an engagement clip (19) to the opening of the cylinder (12), and to provide an engagement portion engageable with the engagement clip (19) to the end of the plunger (14) on the projection side thereof, so as to allow the engagement clip (19) and the engagement portion to engage with and disengage from each other corresponding to the position of rotation of the plunger (14).
21 Citations
6 Claims
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1. A chain tensioner having a plunger slidably fitted in a bottomed cylinder formed in a housing, and configured to resiliently urge the plunger by a spring in the direction along which the plunger is projected out from the cylinder,
the chain tensioner being 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, wherein the plunger has a ratchet formed on the outer circumferential surface thereof in the longitudinal direction, so as to allow the engagement clip, released from the engagement portion as the plunger rotates, to engage with the ratchet.
Specification