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:
Aug. 20, 1991
Filed:
Nov. 30, 1989
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A moving mechanism according to the present invention includes a fixed base, a moving member movably provided with respect to the fixed base, a driving motor mounted on the moving member, a driving shaft rotatably supported by the moving member and rotated by the driving motor, a pair of driven wheels to be brought into rolling contact with the driving shaft, a unit for simultaneously bringing the driven wheels into rolling contact with the base, and an abutting unit for causing the driving shaft to abut against the driven wheels so that they are frictionally engaged with each other, and causing the driven wheels to abut against the fixed base so that they are fictionally engaged with each other, wherein the driven wheels are rotated on the fixed base to move the moving member with respect to the fixed base in accordance with rotation of the driving shaft. The moving mechanism further includes a slip detecting unit for detecting slip generated in a driving power transmitting system from the driving shaft to the fixed base, an abuting force adjusting unit, connected to the abutting unit, for adjusting the abutting force of the abutting unit, and a slip control unit for adjusting the abutting force adjusting unit in a direction of eliminating the slip on the basis of the detection result of the slip detecting unit.