Yard tractor with remote controlled rear access door
AssigneeSSA Terminals (Long Beach) LLC
InventorsStephen Clark, Robert P. Kelly
Life of this patent
Estimating the term…
Abstract
A yard tractor incorporating a fluid cylinder pressurized by fluid from a control valve actuated by a switch accessible from the driver's seat.
Claims14
1-20. (canceled)
A cargo container transport truck comprising:
- a chassis including a truck cab and a driver's station and having a back wall formed with a door opening;
- a door carried from the wall for closing the opening;
- a power means connected between the wall and the door for opening and closing the door;
- a control device for controlling the power source adjacent the driver's station , accessible by a driver at the station to actuate the control device;
- including a control and
- a biasing device for selectively holding the door in at least one of a selected open or closed position.
A method of controlling a door of a machine having a chassis including a truck cab driver's station, the cab having a wall formed with a door opening, a door for closing the opening, a track on the wall for carrying the door for travel between a closed position covering the opening and an open position clear of the doorway, a power device connected between the back wall and door for opening and closing the door and when the door is open, the method including:
- urging the door to the open position;
- and
- accessing a control device from the driver's station to actuate the power device.
A method of controlling a door of a machine having, a chassis including a truck cab driver's station, the cab having a wall formed with a door opening, a door for closing the opening, a track on the wall extending over the opening, for carrying the door for travel between a closed position covering the opening and an open position clear of the doorway, a power device connected between the wall and door for opening and closing the door, control means for controlling the driver and;
- accessing a control device from the driver's station to actuate the power device to open the door;
- and
- biasing the door in its open position.
A cargo container transport truck comprising:
- a chassis including a truck cab and a driver's station and having a back wall formed with a door opening;
- a door carried movably from the wall for shifting between an open position to a closed position for closing the opening;
- a power device connected between the wall and the door for shifting the door between open and close positions;
- a control device for controlling the power device;
- a control panel adjacent the driver's station , including an interior switch accessible by a driver at the station to actuate the control device;
- a second control panel mounted externally on the back wall including an exterior switch for actuating the control device and a biasing device for selectively holding the door in the open position.
A method of accessing the cabin of a yard tractor through an opening of the rear wall including:
- selectively applying pressure to the opposite ends of an air cylinder to shift the door between its open and closed position;
- actuating a switch adjacent a driver's station in the cab to shift the door between its open and closed position;
- actuating an exterior control switch on the exterior of the rear wall to selectively move the door between its open and closed position;
- selectively applying pressure to the cylinder to maintain the door in its respective open or closed positions;
- while moving the door between the open and closed positions, retaining the lower portion thereof relative to the back wall.
A yard tractor apparatus comprising:
- a tractor cab having a driver's station and including a rear wall formed at one side with a rear opening;
- a laterally extending door track on the rear wall;
- a door suspended from the track;
- low friction devices for mounting devices from the track;
- a retainer rail on the bottom of the rear wall for containing the bottom of the door adjacent the rear wall;
- a power device connected between the door and the rear wall for moving the rear wall between open and closed positions;
- a control system for controlling the power device operative to selectively maintaining the door in its respective open or closed positions;
- and
- interior and exterior control switches mounted, respectively, adjacent the driver's station in the cab and on the exterior of the back wall for controlling the control device.
Dependencies are inferred from the claim text.