Leg stretching machine
US4445684A · kind A · utility
Inventor
Key dates
| Filing date | Jul 19, 1982 |
| Grant date | May 1, 1984 |
| Priority date | — |
| Expiry date | Jul 19, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S482/907
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A leg stretching machine comprises a seat fixed to one end of a shaft having a winch connected to slideably mounted spreader arms for splitting one's legs apart to stretch and develop leg muscles. The spreader arms are pivotally connected to a cylinder mounted on the shaft at the end opposite to the seat. The ends of the spreader arms not pivotally connected have pads. The padded ends of the spreader arms rest against the insides of the lower legs of the exerciser sitting in seat. The winch is used to pull the cylinder towards the seat. This causes the spreader arms to exert force against the insides of the exerciser's legs thereby spreading them. A ratchet device on the winch allows holding control at any leg split position. A hand grip is also mounted on the shaft between the seat and the spreader arm cylinder. This allows the exerciser to pull the upper body closer to the floor thereby simulating various martial arts positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.