Automatic door opener for delivery trucks

摘要

An automatic door opener for delivery trucks may include a door opener motor, clutch, and transmission which are connected to a door opener rail. The automatic door opener is attached to the roof of a delivery truck cargo bay and the door opener motor is operable to open and close a cargo door. The clutch and motor are controlled by a motor control computer which may be programmed to automatically operate the clutch, close the cargo bay door, and disengage the clutch as desired. A rail carriage may be connected to the cargo bay door by a door connector arm which includes a quick release connection to the carriage and which may be operated from the outside of the cargo bay door. A sensor may be connected to the door opener rail and to the motor control computer such that the motor control computer tracks the position of the carriage along the door opener rail independent of the operation of the motor.

主权项

1. An automatic door opener for delivery trucks comprising:
a door opener motor which is operable to open and close a cargo door of a delivery truck cargo bay; a motor control computer connected to the door opener motor to operate the door opener motor; an elongate door opener rail, the door opener rail having a motor end disposed adjacent the door opener motor and a door end disposed away from the door opener motor and having a carriage which is movable between the motor end and the door end of the rail; a door connector arm which connects the rail carriage to a cargo door of a delivery truck cargo bay; a sensor connected to the door opener rail and to the motor control computer such that the motor control computer determines the position of the carriage along the door opener rail from the sensor; and a clutch which disconnects the door opener motor from the door opener rail, and wherein the door opener motor is disconnected from the door opener rail while the sensor remains connected to the door opener rail.