Apparatus for detecting a transverse movement of an endless belt

Details Apparatus for detecting a transverse movement of an endless belt Apparatus for detecting a transverse movement of an endless belt

1996-12-10

1999-10-12

Bidwell, James R.

Conveyors: power-driven

Conveyor section

Endless conveyor

198807, B65G 3916

Patent

active

059643390

ABSTRACT:
A detecting device includes a first electrode 42, a second electrode 44, and a conductive portion 14 mounted on a belt 12, for detecting a transverse movement of the belt 12. The electrodes 42 and 44 cooperate with the conductive portion 14 to form a contact-type switch, or mechanical switch. When the belt 12 moves from a first region 46 to a second region 48, the conductive portion 14 comes into contact with the electrodes 42 and 44 to close the switch. A control unit 50 detects an output from the switch. When the control unit 50 has detected a change of the output signal, it causes a correcting mechanism 24 to energize, thereby returning the belt to the first region.

REFERENCES:
patent: 3193086 (1965-07-01), Wilhelm
patent: 3956632 (1976-05-01), Hall et al.
patent: 4462676 (1984-07-01), Shimura et al.
patent: 4959040 (1990-09-01), Gardner et al.
patent: 5347348 (1994-09-01), Nagata

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