Portable exercise apparatus for sit-up exercise
US7004893B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Aug 27, 2002 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Sep 26, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B21/28
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A portable exercise apparatus assisting one person to do sit-up exercise is provided, which includes a footrest, a harness, a resilient retraction means connected between the footrest and harness, and an anchoring means for anchoring the footrest to a stationary support. In use, a person wears the harness connected with the resilient retraction means which connects to the footrest, and seats on the floor with his feet against the footrest. With the assistance of the apparatus, the exerciser alternates between backward prone and sitting upright positions to do sit-up exercise. Another portable exercise apparatus assisting two persons to do sit-up exercise is also provided, which includes a footrest and a hand-pulling device. In use, each person is seated on opposite sides of the footrest, with their feet against the footrest. Each person grips one handle of the hand-pulling device and alternates between sitting upright and backward prone positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.