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:
Apr. 07, 2015
Filed:
Feb. 13, 2013
Naoki Miyagawa, Toyokawa, JP;
Shoichi Yoshikawa, Okazaki, JP;
Noboru Oomoto, Toyokawa, JP;
Naotoshi Kawai, Toyokawa, JP;
SO Yano, Ibaraki, JP;
Takao Miyamoto, Nagoya, JP;
Naoki Miyagawa, Toyokawa, JP;
Shoichi Yoshikawa, Okazaki, JP;
Noboru Oomoto, Toyokawa, JP;
Naotoshi Kawai, Toyokawa, JP;
So Yano, Ibaraki, JP;
Takao Miyamoto, Nagoya, JP;
Konica Minolta Business Technologies, Inc., Chiyoda-Ku, Tokyo, JP;
Abstract
A plurality of first viscoelastic bodies are disposed in insertion holes of a first rotary member. A plurality of second viscoelastic bodies are disposed in guide holes of a second rotary member. Each of the first and the second viscoelastic bodies has an elastic coefficient changing in accordance with aging due to use. A guide member moves a contact member along the insertion hole and the guide hole. The contact member applies a compressive load to the first viscoelastic body. The aging of the second viscoelastic body due to the compressive load applied thereto moves a position of the first viscoelastic body where the compressive load is received from the contact member toward a farther side from a rotational shaft side.