Patent ID: 9679461
Date: 2017-06-13
CPC Classifications: B66F,G08B

Claim:
1. A pre-crush sensor module for use with a safety device for an aerial lift having a basket or cage, the pre-crush sensor module comprising: a plurality of sensors that are removably attachable to the basket or cage, the sensors arranged to provide a detection zone wherein the sensors detect obstacles within the detection zone that may potentially strike an operator standing in the basket or cage before the strike occurs, said detection zone comprising an area above a head of said operator standing in the basket or cage, an operator warning system, and a relay to connect the sensors to the safety device to activate the safety device to: alert the operator to the presence of the obstacle, and prevent further movement of the basket or cage, wherein said detection zone defined by said plurality of sensors is a Mohican shaped zone and a front side of said basket or cage is not within said detection zone, the front side adjacent a control panel of the aerial lift.