Seated abdominal exercise machine
US6186926A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 22, 1999 |
| Grant date | Feb 13, 2001 |
| Priority date | — |
| Expiry date | Apr 22, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B2208/0233
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A seated abdominal exercise machine includes a frame, a seat mounted to the frame and a backrest attached to the frame rearwardly of the seat. An arm and head support assembly is mounted for rotary movement to the frame and provides a resistance adapted to be moved by an exerciser occupied in the seat. A motion translation arrangement is pivotally mounted between the frame and the arm and head support assembly for providing an unrestricted, full range abdominal crunching motion for the seated exerciser. The machine relies upon a series of transfer members pivotally interconnected together between the frame and the arm and head support assembly and moving about a first fixed horizontal axis passing through the backrest, a first movable horizontal axis passing through the arm and head support assembly, a second fixed horizontal axis passing through the frame at a location offset from the first fixed horizontal axis, and a second movable horizontal axis which moves rearwardly and upwardly relative to the frame when a downward force is exerted upon the arm and head support assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.