Ladder with safety feet
US5421429A · kind A · utility
Inventor
Key dates
| Filing date | May 4, 1994 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | May 4, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE06C7/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A ladder having legs having lower ends, has a safety foot pivotally connected to each lower end. Each safety foot has a hinge having two plates one of which is secured to the ladder foot and the other of which is secured to the lower end of the ladder leg. One of the hinge plates supports a stop surface that contacts a stop surface supported by the other hinge plate when the foot is at right angles to the ladder leg. The foot is releasably retained in a position parallel to the ladder leg. The releasible retainer is hook and eye fabric one element of which is connected to the lower end of the ladder leg and the other element of which is connected to the foot. The hinge plate is integral with a member that extends along the lower end of the leg, one element of the hook and eye fabric being fixedly secured at one end between this member and the leg and being free at another end thereof. One of the stop surfaces is provided by a member that is L-shaped to surround the hinge. This L-shaped member is disposed below the lower end of the leg. The ladder can be a stepladder, in which case a ground engaging edge of the foot is inclined at an acute angle to the axis of the hinge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.