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. 11, 2007
Filed:
May. 03, 2004
Pai Hua Lo, Tanzih Township, Taichung County, TW;
Pai Hua Lo, Tanzih Township, Taichung County, TW;
P & F Brother Industrial Corporation, Taichung, TW;
Abstract
A linkage structure of a treadmill, including a frame assembly and two tread board racks pivotally disposed on the frame assembly side by side. Two buffering cylinders are disposed between the tread board racks and the frame assembly. Two support arms are respectively pivotally connected with the tread board racks and slidably mounted in the frame assembly. The support arms are respectively pivotally connected with two linkages. Two ends of the two linkages distal from the support arms are respectively pivotally connected with two ends of a linking rack. The linking rack is pivotally mounted in the frame assembly. Via the support arms, the linkages and the linking rack, the side by side arranged tread board racks are drivingly connected with each other to move in reverse directions.