Abstract:
A motorized window operator for opening and closing a window having a mechanical drive system including a rotatable drive axle. A housing contains a motor which is in operative engagement with a gear train having an output gear. The output gear is engageable with an engagement means mounted upon the drive axle of the window. For engaging the output gear train with the engagement means, operation of the motor will rotate the drive axle to either open or close the window according to desire. The gear train is dissengageable from the engagement means which at the same time dissengages power to the motor. The drive axle can then be manually operated.
Abstract:
A door member such as a garage door is driven by a motor through a roller chain having a finite length to travel in the garage opening and closing directions. The roller chain is driven by a single drive sprocket driven by the motor to make its reciprocating movement along the same path while making rolling engagement at its roller portion with a guide rail constructed to support the roller portion of the roller chain from the opposite sides. A trolley connected to the door member by an arm is releasably coupled to the roller chain and is also guided along the guide rail while making sliding engagement therewith. A mechanism for detecting abutment of the door member with an obstruction present on the traveling path is provided to detect the above situation when a physical force is imparted to the roller chain due to the abutment. The opening and closing movement of the door member, stopping of rotation of the motor and detection of the presence of an obstruction are electrically controlled.
Abstract:
A manually operated actuator arrangement includes a pair of actuators mounted forwardly and rearwardly of a swingably mounted vehicle window and connected by a translatable flexible member movable within a flexible conduit for concurrent operation. One actuator is mounted forwardly of the window in a position to be operated by front seat occupants and the other is mounted adjacent the rearward free swinging edge portion of the window and connected thereto by an overcenter type toggle linkage.
Abstract:
A remote controller for remotely controlling the opening position of a hinged window of a vehicle, which comprises a flexible cable with one end operatively connected to a free end portion of the window, a cable guide member for guiding the cable, an operating device connected to the cable to longitudinally move the same causing opening and closing movements of the window when operated, and a one-way braking mechanism for braking the longitudinal movements of said cable induced by the opening and closing movements of the window while freely permitting the movements of the cable via the operation of the operating device.
Abstract:
An operator for an upwardly acting door. A reversible electric motor is drivingly connected to the door by an intermediate drive linkage. A switch assembly is associated with the operator for controlling the upward and downward movement of the door, which switch assembly includes first and second limit switches for deactivating the motor when the door reaches its lowermost and uppermost positions, respectively. A third switch functions as a safety switch for causing reversal in the motor rotation when the driving force exceeds a preselected maximum. Fourth and fifth cut-off switches are respectively positioned adjacent the first and second switches for overriding the third switch when the door is within a preselected distance from its closed or open position. The limit and cut-off switches are controlled by a rotatable screw member having a pair of traveling nuts thereon which coact with a pair of individually movable control slides. One of the control slides activates the first and fourth switches, and the other control slide activates the second and fifth switches.
Abstract:
A traveler for an overhead garage door operator with a linear power shuttle, a guide track and an actuator arm for raising and lowering a door. The traveler is connected to the actuator arm and carried by the track for reciprocating movement thereon. A biased latch connects the traveler to the power shuttle to open and close the door in normal operation, releases the traveler from the shuttle to facilitate manual opening and closing of the door, and automatically re-connects the traveler with the shuttle.