E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
E05F 15/16 (2006.01) E05F 15/10 (2006.01)
Patent
CA 2322355
An automatic overhead door opening system for a transport container whereby to operate the displacement of a panel door from a closed position to an open position. The system is housed in a restrained size housing which incorporates a motorized drive for driving an endless chain associated with an elongated central guide track on which the door is guidingly attached. The motorized drive is comprised of two small d.c. motors each having a drive gear drivingly coupled to a common driven gear of a gear drive which includes a worm gear in meshing engagement with a driven sprocket connected to a drive sprocket to displace the endless chain. The housing is of reduced thickness and access to the interior of the housing is provided through a non-obstructed removable bottom wall plate and accordingly it is not necessary to disconnect the endless chain and drive sprocket to have access to the components of the system. The drive can also be operated from the cabin of a motorized vehicle incorporating a transport container or remotely from a hand-held transmitter unit or by a control secured to an outside wall of said box and energized from inside the cab by authorized operator.
Harvey Remy
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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