Patent ID: 7364537
Filing Date: 2008-04-29
Classification: A63B

Abstract:
1. A wind resistance mechanism for an exercise apparatus comprising: a) a movable clamping device having a hub and two discs, the hub being supported on an output shaft, the discs being movable in axial direction, and b) a plurality of blades interposed between both discs; whereby an external force is applied to one of the discs to control the form of the wind-facing side of the blade, thereby adjusting the wind resistance; c) two force-applying portions formed at both ends of the hub, a shaft-receiving tube being interposed between both force-applying portions, a plurality of strips being formed on the shaft-receiving tube, a guide channel axially extended to the annular piece being formed between every two neighbored strips; d) an annular piece formed on one of the opposing faces of both discs, the annular piece having a mounting through hole, a plurality of the spaced grooves being formed in correspondence to the strips for ensuring a reciprocating movement in axial direction on the tubular hub; and e) a spring element received in the annular groove and mounted on the tubular hub.