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. 10, 1992
Filed:
Jun. 07, 1991
Yoshiyuki Ariki, Kumagaya, JP;
Jeco Company Limited, Saitama, JP;
Abstract
An odometer apparatus having an error elimination mechanism for eliminating an error in an indication figure. The odometer apparatus includes a set of gears rotatably supported on a first shaft for indicating each digit of a set of digits in the indication figure, a set of pinions coupled with the gears and rotatably supported on a second shaft for transmitting a rotation force to the gears, a set of bosses each arranged between two adjacent pinions and formed integrally with the pinions, each of the bosses having a substantially square section taken in a plane perpendicular to the second shaft, and a pressure member for eliminating an error in the indication figure due to a backlash between the gears and the pinions. The pressure member is engaged in a unique manner with a side surface of one of the bosses such that the side surface of the boss is pressed by the pressure member at a predetermined angle to the side surface so as to apply appropriate pressure to the boss on the second shaft to eliminate an indication figure error. Also, the odometer has a reverse rotation prevention mechanism which is formed with a spring member for preventing the gears from being rotated reversely around the first shaft.