Noise dampening motor drive system for retractable covering for architectural openings

摘要

A motor-drive system for retractable covering having a headrail with a horizontally disposed roller supporting a top edge of a flexible fabric material includes an electric motor mounted within a housing and interconnected to the roller to selectively rotate the roller in opposite directions while minimizing noise created from vibrations within the system. This system includes motor mounts within the housing which separate and absorb vibrations of the motor within the housing and a drive disk of a moderately soft material, which is firm enough to transfer torque from the motor to the roller while being soft enough to absorb vibrations which would otherwise be transmitted from the motor to the roller. An interconnect mounting the drive disk to the drive shaft of the motor is also made of a third relatively soft material, which is harder than the drive disk to more ably transmit torque but soft enough so as not to unduly transmit noise.

主权项

1. A covering for an architectural opening comprising:
a headrail; a roller rotatably supported within the headrail; a shade material attached to the roller; a housing received within the roller; a motor at least partially received within the housing and operably coupled with the roller to rotate the roller and move the shade material, the motor having a maximum outer diameter; and a support at least partially received within the housing, the support positioned adjacent to and extending axially away from an axial end of the motor, the support including an inner, rigid member and an outer, resilient member, the resilient member defined at least partially by an outer diameter, the support coupled with the motor and the housing to inhibit the motor from rotating relative to the housing; wherein the outer diameter of the resilient member is greater than the maximum outer diameter of the motor to maintain an annular space between the motor and the housing.