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:
Nov. 21, 2023
Filed:
Feb. 07, 2022
Canon Kabushiki Kaisha, Tokyo, JP;
Jumpei Ishibiki, Saitama, JP;
Tatsuya Otoshi, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A drive device that reduces a returning force to return to the center when moving a movable unit with respect to a fixed unit and suppresses a load of an actuator driving the movable unit is provided. The drive device includes a fixed unit, a movable unit that is disposed so as to be capable of relatively moving in a predetermined range within a plane with respect to the fixed unit, a plurality of rolling members that are disposed between the fixed unit and the movable unit, an actuator configured to drive the movable unit, and an urging unit configured to urge the movable unit to the fixed unit via the rolling members. The urging unit includes a magnet and a magnetic body. One of the magnet and the magnetic body is held by the movable unit, and another of the magnet and the magnetic body is held by the fixed unit. A range, in which the magnet can move when the actuator is driven to move the movable unit, does not protrude from an end of the magnetic body when viewed from a direction orthogonal to the plane.