Swing-door operator system
First Claim
Patent Images
1. A door operator system for controlling the operation of a pivotally moveable door comprising:
- motor means including a drive shaft for selectively bi-directionally rotatably driving said drive shaft;
control means responsive to a plurality of input signals for selecting a voltage value from an array of pre-established voltages and deriving a motor voltage from said selected voltage value and generating a desired voltage polarity signal, said control means comprising means for applying said polarity signal and said selected voltage value to energize said motor means for driving said drive shaft at a selected speed and direction;
transmission means including an operator shaft for translating rotatable motion of said drive shaft to a corresponding reduced speed rotatable motion of said operator shaft; and
linkage means connecting said operator shaft in generally fixed angular relationship therewith and comprising connector means for pivotally connecting with an associated door, said operator shaft angularly driving said linkage means for pivotally opening and closing the door in accordance with the operation of said motor means.
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Abstract
An operator for swing-door employs an electronic control unit for controlling the operation of a motor. The motor is bi-directionally driven at various speeds for opening, closing, braking and maintaining a given position of an associated swing-door. The motor drive shaft is mechanically connected via a timing belt/pulley system with an operator shaft for transmitting torque to a linkage assembly. The linkage assembly is configured to provide a high mechanical advantage at the fully opened and fully closed positions of the associated swing-door.
129 Citations
28 Claims
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1. A door operator system for controlling the operation of a pivotally moveable door comprising:
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motor means including a drive shaft for selectively bi-directionally rotatably driving said drive shaft; control means responsive to a plurality of input signals for selecting a voltage value from an array of pre-established voltages and deriving a motor voltage from said selected voltage value and generating a desired voltage polarity signal, said control means comprising means for applying said polarity signal and said selected voltage value to energize said motor means for driving said drive shaft at a selected speed and direction; transmission means including an operator shaft for translating rotatable motion of said drive shaft to a corresponding reduced speed rotatable motion of said operator shaft; and linkage means connecting said operator shaft in generally fixed angular relationship therewith and comprising connector means for pivotally connecting with an associated door, said operator shaft angularly driving said linkage means for pivotally opening and closing the door in accordance with the operation of said motor means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A swing-door operator comprising:
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electric motor means including a drive shaft for rotatably bi-directionally driving said shaft at a plurality of speeds; transmission means comprising an operator shaft for transferring rotatable drive motion of said drive shaft to a reduced bi-direction rotatable motion of said operator shaft; feedback means responsive to a pre-established angular position of said operator shaft for generating a CK signal; door status input means for generating a door status OPN signal; electronic motor control means responsive to said CK and OPN signals for selecting a reference voltage from an array of pre-established voltages and deriving a motor voltage and applying said derived voltage to said motor means for controlling the speed thereof and for generating a direction control signal and applying said direction control signal to said motor means for controlling the direction thereof; so that said drive shaft may be sequentially operated in dual speed forward and reverse directions in accordance with the CK and the OPN signals for rotating and braking said operator shaft. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. An electronic operator for a swing-door comprising:
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a direct current motor comprising a drive shaft and electrical leads for applying a motor voltage to said motor for rotating said drive shaft at a speed corresponding to said applied voltage; a transmission including an operator shaft for translating the rotational motion of said drive shaft to reduced speed motion of said operator shaft; feedback signal means for generating a CK signal indicative of a given angular position of said operator shaft; door status means for generating an OPN signal indicative of a door status condition; electromechanical relay means for changing the polarity of the voltage applied to said leads; electronic control means comprising means for pre-setting first, second, and third reference voltages and logic means responsive to said CK and OPN signals for selecting a reference voltage and generating a REL direction signal, said electronic control means comprising means for applying said REL signal to said relay means and employing said selected reference signal to generate a motor voltage for application to said electrical leads so that said operator shaft may be sequentially driven in dual speed forward and reverse directions and a reverse torque applied to said operator shaft for a pre-established time interval to brake the speed of said operator shaft. - View Dependent Claims (26, 27, 28)
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Specification