Magnetic damping device for an exercising machine

Abstract:

A magnetic damping device installed in an exercising machine and controlled to impart a magnetic damping force to a load wheel, including two magnetic members symmetrically pivoted to the exercising machine and moved one after the other with an adjustment device relative to the load wheel, and two tensile springs respectively connected between the exercising machine and the magnetic members to provide the magnetic members with different moment of force.

Citations

5031901 5848953 5851165 6095953

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Claims:

What the invention claimed is:

1. A magnetic damping device installed in a support structure in an exercising machine and adjusted by an adjustment device having a steel cable and a sleeve on thesteel cable to impart a magnetic damping force to a load wheel in said exercising machine, comprising:

two magnetic members respectively pivoted to the support structure of said exercising machine around the periphery of said load wheel at two opposite sides, said magnetic members each comprising a smoothly arched holder strip, and a magneticelement fastened to said holder strip and facing the periphery of said load wheel, said smoothly arched holder strip each having a bottom end pivoted to the support structure of said exercising machine and a top end, the top end of the smoothly archedholder strip of one of said magnetic members being connected to said steel cable, the top end of the smoothly arched holder strip of the other of said magnetic members being connected to said sleeve; and

two tensile springs respectively connected between said support structure and the smoothly arched holder strips of said magnetic members to impart different moment of force to said magnetic members for enabling said magnetic members to bestretched open one after the other when said adjustment device is adjusted in one direction, or to be pulled inwards toward the periphery of said load wheel one after the other when said adjustment device is adjusted in the reversed direction.

Patent number:
6244990
View patent at USPTO

Filing date:
September 8, 2000

Issue date:
June 12, 2001

Inventor:
Tong-Sheng Cheng (Taipei, TW)

Primary Examiner:
S. Crow

Attorney, Agent or Firm:
Dougherty & Troxell

Current U.S. Classification: 188/164 482/63