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. 20, 1988
Filed:
Nov. 16, 1987
Chao Y Chen, Feng-Yuan City, TW;
Other;
Abstract
A speed adjusting mechanism for adjusting the speed of an endless belt of a treadmill includes a speed variable V-belt drive mechanism which has two pairs of cone-shaped discs mounted coaxially on a transmission shaft disposed between an output shaft of a motor and a driven shaft of the treadmill belt. Each pair of discs includes a fixed disc and a slideable disc adjacent to the slideable disc of the other pair of discs, and the slideable discs slide mutually upon lateral displacement of the transmission shaft. The transmission shaft is displaced laterally by a reversible motor through a crank mechanism and a gear mechanism including a sector gear. The slope of the belt is adjusted by another reversible motor through a gear mechanism including a sector gear.