The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2015
Filed:
Feb. 22, 2012
Osamu Yoshida, Osaka, JP;
Yuuji Kurematsu, Osaka, JP;
Akira Ishii, Osaka, JP;
Tsubakimoto Chain Co., Osaka, JP;
Abstract
There is provide a ratchet-type tensioner that enables to readily disengage a plunger from a ratchet element in maintaining an engine, that engages the plunger reliably with the ratchet element in operating the engine so as to reduce flapping noise, and that prevents seizure of the plunger. A ratchet releasing mechanism X configured to release an engagement of the ratchet teethof the ratchet elementwith the rack teethof the plungerby means of a tool pin T includes a ratchet releasing pin guide holeformed through the housing bodyto insert a pin edge portion Tof the tool pin T into a plunger-side edge region of the ratchet elementand a ratchet releasing pin engaging holeformed in the plunger-side edge region of the ratchet elementto guide and engage the pin edge portion Tof the tool pin T inserted from the ratchet releasing pin guide hole