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. 14, 2003
Filed:
Nov. 15, 2000
Minoru Yamaguchi, Saitama, JP;
Heiwa Seiki Kogyo Co., Ltd., Yashio, JP;
Abstract
A circular-plate holder is disposed at an end of a cylindrical portion arranged in a tripod head. A pair of arc lever tumblers, which is capable of contacting the inner surface of the cylindrical portion, is rotatably supported on the holder around a rotation axis. The ends of the arc lever tumblers are close to each other. A rotator, which has a gear portion at a tip end, is rotatably supported on the holder around a rotation axis disposed between the other ends of the lever tumblers. Each of the tumblers is connected to the rotator by a pair of linkage means. The gear portion of the rotator engages a gear portion of a torque-adjusting shaft, which extends through a central portion of the holder and rotates according to rotational operation of an adjusting knob.