| 摘要 |
A safety system for a machine such as a wood chipping machine. The safety system has a passive sensor that may be worn on the machine operator's wrist, a sensing coil mounted to a feed chute of the machine for detecting the proximity of the passive sensor, and control circuitry which is responsive to the sensing coil. The circuitry provides a control signal for use in stopping operation of the machine. In use, the presence of the operator's arm in the chute near to parts of the machine that can cause injury will trigger the sensing coil and cause the machine to cease operating, thus circumventing injury to the operator. |
