Wheel-type resistance device for a bicycle exerciser

Details Wheel-type resistance device for a bicycle exerciser Wheel-type resistance device for a bicycle exerciser

1998-06-03

1998-12-22

Crow, Stephen R.

Exercise devices

Involving user translation or physical simulation thereof

Bicycling

188164, A63B 2206, B60L 700

Patent

active

058511652

ABSTRACT:
A wheel-type resistance device includes a flywheel rotated with a hub member around an axle and having an accommodation chamber with a first circumferential portion extending in a radial direction and provided with a plurality of magnetically attractive members. A dragging force adjusting member is mounted on the axle and has a second circumferential portion registered with the first circumferential portion. Upper and lower magnetic members are disposed movably on the second circumferential portion and are spaced apart from and are in symmetry with each other relative to a horizontal line transverse to an axial direction defined by the axle. A cam member is mounted rotatably on the axle. A pair of cam followers are disposed respectively on the upper and lower magnetic members and are moved by the cam member such that counterclockwise rotation of the cam member will impart linear movements of the upper and lower magnetic members towards the horizontal line. As such, the overlapping area of the upper and lower magnetic members with the second circumferential portion can be decreased.

REFERENCES:
patent: 4146806 (1979-03-01), Katsumata
patent: 4550697 (1985-11-01), Campen
patent: 5072930 (1991-12-01), Sun
patent: 5236069 (1993-08-01), Peng
patent: 5247854 (1993-09-01), Wa
patent: 5254061 (1993-10-01), Leask
patent: 5437353 (1995-08-01), Wu
patent: 5586624 (1996-12-01), Ko et al.
patent: 5711404 (1998-01-01), Lee

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