Landing gear for semitrailers and the like
US5137301A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 1991 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Apr 18, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60S9/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A landing gear for semitrailers has a leg the upper end of which is connected with the semitrailer and the lower end of which is connected with a ground contacting member by a load transmitting device which can turn relative to the leg about a horizontal axis back and forth to opposite sides of a neutral portion and has a part cylindrical shell which can roll on a skid between two upstranding sidewalls of the ground contacting member. The axial ends of the shell are connected with end walls which are inwardly adjacent the sidewalls and carry followers serving to track V-shaped cam slots in the adjacent sidewalls. The load transmitting device is biased to the neutral position by two leaf springs which are located at opposite sides of the pivot axis for the load transmitting device and each of which is separably connected to the leg as well as to the skid. The springs are accessible, at least in the neutral position of the load transmitting device, and extend through a circumferentially extending window in the shell. The load transmitting device and the ground contacting member can be made of metallic sheet stock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.