Barrier movement control safety method and apparatus
DCFirst Claim
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1. A barrier movement system for opening and closing a barrier comprising:
- a motor connected to the barrier;
a controller responsive to user initiated signals controlling the motor to move the barrier to open and closed positions;
user controlled apparatus transmitting user initiated signals to the controller to control barrier movement;
obstruction sensing apparatus generating an obstruction signal representing the detection of an obstruction to barrier movement in a first direction;
the controller responds to the obstruction sensing apparatus by determining whether a sensed obstruction is overridable by user input; and
the controller while moving the barrier responds to the obstruction signal when the sensed obstruction is not overridable by stopping movement of the barrier in the first direction, automatically performing a safety response and inhibiting response to the user initiated signals.
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Abstract
A barrier mount system is disclosed which opens and closes a barrier such as a gate or garage door in response to user generated commands. Obstruction detection apparatus is provided for safety of operator. When an obstruction is sensed, the barrier movement system is inhibited from responding to user generated commands until a predetermined event occurs. The event may be passage of a predetermined amount of time or barrier movement of a particular amount.
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Citations
15 Claims
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1. A barrier movement system for opening and closing a barrier comprising:
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a motor connected to the barrier; a controller responsive to user initiated signals controlling the motor to move the barrier to open and closed positions; user controlled apparatus transmitting user initiated signals to the controller to control barrier movement; obstruction sensing apparatus generating an obstruction signal representing the detection of an obstruction to barrier movement in a first direction; the controller responds to the obstruction sensing apparatus by determining whether a sensed obstruction is overridable by user input; and the controller while moving the barrier responds to the obstruction signal when the sensed obstruction is not overridable by stopping movement of the barrier in the first direction, automatically performing a safety response and inhibiting response to the user initiated signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification