Swinging lift gate
First Claim
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1. A lift gate mechanism comprising:
- (a) means defining a bearing for rotation about a horizontal axis;
(b) a gate spar mounted for rotation about said horizontal axis;
(c) a cantilever arm connected to said gate spar;
(d) a counterbalance connected to said cantilever arm;
(e) an actuator arm mounted for rotation about said horizontal axis;
(f) an actuator normally connected to said actuator arm for rotating the actuator arm about said horizontal axis;
(g) and a releasable latch normally connecting the actuator arm to the cantilever arm,whereby releasing said latch permits manual movement of the gate spar about said horizontal axis.
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Abstract
A lift gate has its bearing structure mounted on a post for rotation about a vertical axis to provide lifting and an alternative swing action. Mechanical latches normally keep the gate from swinging. An electrical motor normally lifts the gate and power is maintained by a solar electric panel. The motor can be mechanically disconnected from the gate to provide for manual lifting of the gate when there is a malfunction. A clock mechanism energizes the motor to close the gate after it has been opened for a predetermined time period.
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Citations
1 Claim
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1. A lift gate mechanism comprising:
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(a) means defining a bearing for rotation about a horizontal axis; (b) a gate spar mounted for rotation about said horizontal axis; (c) a cantilever arm connected to said gate spar; (d) a counterbalance connected to said cantilever arm; (e) an actuator arm mounted for rotation about said horizontal axis; (f) an actuator normally connected to said actuator arm for rotating the actuator arm about said horizontal axis; (g) and a releasable latch normally connecting the actuator arm to the cantilever arm, whereby releasing said latch permits manual movement of the gate spar about said horizontal axis.
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Specification