MOTORIZED CLOSURE OPERATING DEVICE WITH ELECTRONIC CONTROL SYSTEM
First Claim
1. A closure operating device for opening and closing an overhead closure, the closure operating device comprising:
- a motor operatively connected to an output shaft for rotation thereof, said output shaft being adapted to drive said closure for displacement thereof along a travel path between open and closed limit positions;
a sensing system operable to at least one of stop and open the closure upon detection of the presence of an obstacle obstructing the travel path of said closure;
a control system in communication with said motor and said sensing system, said control system including a control unit operable to deactivate said sensing system at a selected point prior to said closed limit position of said closure;
at least one switch in communication with said control system and actuable by a switch actuator, the switch actuator being displaceable along the output shaft and operable to actuate said switch when disposed in a predetermined position therealong; and
wherein the control system determines one of said selected point for the deactivation of the sensing system and the closed limit position of the closure, based on a delay period relative to the actuation of said switch.
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Accused Products
Abstract
An operating device for an overhead closure which comprises a motor, operatively connected to the closure for opening and closing the closure, and at least one sensor unit mountable either the closure or a support surface bordering the closure. The sensor unit is operable to detect the presence of an obstacle obstructing a travel path of the closure and to generate a signal in response thereto. A control system is in communication with the sensor and with the motor. The control system includes a control unit which receives the signal and provides a sensing feature which stops and/or opens the closure in response to the signal. The control unit deactivates the sensing feature at a selected point prior to an end limit position of the closure. The selected point is determined by the control unit based on a calculated delay characteristic.
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Citations
25 Claims
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1. A closure operating device for opening and closing an overhead closure, the closure operating device comprising:
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a motor operatively connected to an output shaft for rotation thereof, said output shaft being adapted to drive said closure for displacement thereof along a travel path between open and closed limit positions;
a sensing system operable to at least one of stop and open the closure upon detection of the presence of an obstacle obstructing the travel path of said closure;
a control system in communication with said motor and said sensing system, said control system including a control unit operable to deactivate said sensing system at a selected point prior to said closed limit position of said closure;
at least one switch in communication with said control system and actuable by a switch actuator, the switch actuator being displaceable along the output shaft and operable to actuate said switch when disposed in a predetermined position therealong; and
wherein the control system determines one of said selected point for the deactivation of the sensing system and the closed limit position of the closure, based on a delay period relative to the actuation of said switch. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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9. The operating device as defined in claim 9, wherein said delay period is at least one of determined by said microprocessor and manually selected.
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19. An operating device for an overhead closure, the operating device comprising:
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a motor operatively connected to said closure for opening and closing the closure;
at least one sensor unit mountable to one of the closure and a support surface bordering the closure, the sensor unit being operable to detect the presence of an obstacle obstructing a travel path of said closure and to generate a signal in response thereto; and
a control system in communication with said sensor and with said motor, said control system including a control unit which receives said signal and provides a sensing feature which at least one of stops and opens the closure in response to said signal, said control unit deactivating said sensing feature at a selected point prior to an end limit position of said closure, the selected point being determined by the control unit based on a calculated delay characteristic.
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20. A method of controlling operation of a closure using an electronic control system, the method comprising:
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using a sensing system to determine the presence of an obstacle obstructing a travel path of the closure and to at least one of stop and open the closure when the presence of said obstacle is detected;
determining a selected position of the closure below which obstacle detection using the sensing system is not required, and using said electronic control system to calculate a delay characteristic corresponding to said selected position of said closure; and
deactivating said sensing system using said control system based on said delay characteristic. - View Dependent Claims (21, 22, 23, 24, 25)
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Specification