| 摘要 |
An operator cage (6, figure 1) for a machine having a base unit (22 figure 2), fence assembly (25, figure 2) and a pivoting control console 32, a load sensor 46 detecting pivoting movement of the console when a load is applied to the console (figure 3). The console may have a spring to bias it into the unloaded position, a predetermined load being necessary to move the console to a loaded position. The predetermined load may be adjustable by bolt 52. The sensor may be a proximity switch and may normally be in the closed position. The sensor may be in a closed compartment so that it is covert and tamper proof. The cage may have a fence assembly with an upper rail having two portions, one portion being above a gateway and higher than the other portion and supporting a crush sensor (36, figure 2). The system may be for a mobile elevating work platform (MEWP), forklift or telehandler. Visual or audible warnings may be provided. The invention provides a safety system whereby on detecting a load the drive to the cage is stopped, preventing crushing or injury of the operator. |
