Exercise apparatus having high durability mechanism for user energy transmission
US4949993A · kind A · utility
135Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1989 |
| Grant date | Aug 21, 1990 |
| Priority date | — |
| Expiry date | Jul 31, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2208/0204
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An exercising apparatus is disclosed which simulates stair-climbing. In order to reduce breakage problems in the force-transmitting structure between each pedal and a one-way rotating drive shaft, a pair of pulley wheels, each associated with a pair of cables, are used. Each pulley wheel rotates the drive shaft, and is pulled in one direction of rotation by a pedal-connected cable, and in the other direction of rotation by a cable connected to a return spring. Each cable on each pulley wheel reels into and out of helical grooves formed in the periphery of the pulley wheel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.