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:
Dec. 14, 2021
Filed:
Jul. 31, 2020
Canon Kabushiki Kaisha, Tokyo, JP;
Takatsugu Nakamura, Kawaguchi, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image reading apparatus includes an image reading portion; a main assembly; a rotatable member; a damper unit mounted to either one of the main assembly and the rotatable member and including a cylinder portion and a piston portion inserted into the cylinder portion, wherein the damper unit is expanded in an expansion direction and contracted in a contraction direction by sliding the cylinder portion and the piston portion relative to each other; and a contact portion provided on the other one of said main assembly and said rotatable member and configured to contact said damper unit, wherein the damper unit suppresses a speed of said rotatable member when said rotatable member lowers from an upper position toward a lower position in a state in which the contact portion contacts and presses the damper unit in the contraction direction.