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:
Jan. 06, 2015
Filed:
Feb. 01, 2012
Yuji Kurematsu, Osaka, JP;
Munehiro Maeda, Osaka, JP;
Osamu Yoshida, Osaka, JP;
Akira Ishii, Osaka, JP;
Toyonaga Saitoh, Osaka, JP;
Yuji Kurematsu, Osaka, JP;
Munehiro Maeda, Osaka, JP;
Osamu Yoshida, Osaka, JP;
Akira Ishii, Osaka, JP;
Toyonaga Saitoh, Osaka, JP;
Tsubakimoto Chain Co., Osaka, JP;
Abstract
There is provided a ratchet-type tensioner whose spring stopping washer for seating a ratchet biasing spring is rigidly and readily assembled to a ratchet-receiving hole so as not to fall out of the ratchet-receiving hole and which reduces flapping noise and prevents seizure of the plunger by securely and stably operating a ratchet mechanism in operating an engine. The ratchet-type tensioneris arranged so that the spring stopping washer has a C-ring anchored in the rear-end area of the ratchet-receiving hole by fitting in a diameter-reduced state and by enlarging its diameter within an anchoring circumferential groove of the ratchet-receiving hole and a spring stopping piece extended from the C-ring to a ring center area to seat the ratchet biasing spring.