Angle measurement for forklift operation

摘要

The device measures distance from the forklift mast to a fixed point on the forklift roof (overhead guard) proper. The device has an electronic signal producing source which signal is reflected from a surface on the mast of the forklift. The reflected signal is accepted by a signal receiver. These reflected signals are electronically analyzed and displayed on an analog display device. The display device indicates if the mast is in an upright position or if the mast is forward or rearward from the center. This device is useful for retrieving high bay pallets with goods. The electronic signal is an ultrasonic signal. The electronic signal producing source and receiver may be housed as a single unit.