B - Operations – Transporting – 66 – B
Patent
B - Operations, Transporting
66
B
B66B 13/26 (2006.01) B66B 13/22 (2006.01)
Patent
CA 2132152
In this safety circuit, a transmitter (1) produces a non-electrical signal which is guided by a first partial conductor piece (2) to a latching equipment (3) of a first storey door. In the shown operative position of the latching equipment (3) of the first storey door, the non-electrical signal is guided by means of a second partial conductor piece (4), which is arranged at the latching equipment (3) of the first storey door, to a third partial conductor piece (5) and by this to a latching equipment (3) of a second storey door. In the shown rest position of the latching equipment (3) of the second storey door, the non-electrical signal is not guided by means of a fourth partial conductor piece (7), which is arranged at the latching equipment (3) of the second storey door, to a fifth partial conductor piece (8) so that this does not conduct any non-electrical signal to a receiver (9). For the checking of the transmitter (1), the receiver (9) and the partial conductor pieces (2; 4; 5; 7; 8), a direct conductor (10) is provided on the one hand for the testing of the transmitter (1) and the receiver (9) and sensors (11; 12; i13) are provided on the other hand for the testing of the partial conductor pieces (2; 4; 5; 7; 8). For each partial conductor piece, a respective sensor (11; 12; 13) is provided, the signal of which is conducted to a circuit for failure recognition (14).
Ag Inventio
Riches Mckenzie & Herbert Llp
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