Drive system for megnetic resistance exercisers field of the invention
OwnerChang Wuinventor
Life of this patent
Estimating the term…
Abstract
A drive system for a magnetic resistance exerciser includes a fixed wheel and at least one rotatable wheel which is rotatably connected to the weight wheel and the fixed wheel by two respective belts. The fixed wheel and the weight wheel shares a common shaft which is perpendicularly connected with a link and the at least one rotatable wheel is rotatably connected to an extension on an end of the link. When rotating the shaft, the link rotates and the at least one rotatable wheel rotates about the shaft and the extension simultaneously so that the rotational speed of the weight wheel can be increased without increasing the whole system.
Claims4
A driving system for a magnetic resistance exerciser, comprising:
- a support member having a through hole defined therethrough and a plurality of positioning holes defined beside the through hole;
- a link having a shaft extending perpendicularly from a mediate portion thereof and two extensions perpendicularly extending from two ends of the link;
- a fixed wheel fixedly connected to the support member and having a first central hole defined therethrough, a belt groove defined in an outer periphery of the fixed wheel;
- at least one rotatable wheel having a through hole defined in a center thereof and a first groove defined in an outer periphery of the at least one rotatable wheel, a first extension portion extending from a side of the at least one rotatable wheel and a second groove defined in the first extension portion, and
- a weight wheel having a second central hole and a second extension portion extending from a side of the weight wheel, a third groove defined in the second extension portion, the shaft rotatably extending through the first central hole and the second central hole, two cranks connected to two ends of two ends of the shaft, one of the extensions of the link rotatably extending through the through hole of the at least one rotatable wheel, a first belt engaged with the belt groove of the fixed wheel and the second groove of the first extension portion, a second belt 7 engaged with the first groove of the at least one rotatable wheel and the third groove of the second extension portion.
Dependencies are inferred from the claim text.