Device which can brake and/or stop a load secured to it and which falls, notably an anti-fall safety device
US4533026A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 7, 1982 |
| Grant date | Aug 6, 1985 |
| Priority date | — |
| Expiry date | Oct 7, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B35/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A load carrying device, movable along a rope, has a casing formed of two cheeks, a shaft supported on the casing, and a pulley supported on the shaft. Two diverters are disposed on opposite cheeks of the casing so a rope enters the device on one diverter, passes about a portion of the circumference of the pulley, and exits the device on the other diverter. The casing has a closed position where the cheeks are axially adjacent and an open position where the cheeks are spaced apart along the shaft so that a rope may be inserted in the device. The cheeks have stops which limit their translational movement from the closed position and limit their rotational movement when rope tension tends to move the diverters away from each other. Centrifugal force of pulley rotation causes a pawl to lock the pulley against rotation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.