A position sensing device for sensing an upper limit position and a lower limit position of a hoisting line for raising and lowering a door leaf of an animal enclosure, the position sensing device comprising a hoisting line pathway for a hoisting line to raise and lower a door leaf of an animal enclosure, an actuator arm moveable between a first position and a second position, and a proximity switch having a first state corresponding to the actuator arm being in the first position and a second state corresponding to the actuator arm being in the second position.
Position sensing device for sensing an upper limit position and a lower limit position of a hoisting line
2023-05-16
Patent
Electronic Resource
English
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