Endless belt power transmission systems or components – Means for adjusting belt tension or for shifting belt,... – With sensor for controlling operation of shifter to correct...
Patent
1990-02-05
1991-05-28
Bui, Thuy M.
Endless belt power transmission systems or components
Means for adjusting belt tension or for shifting belt,...
With sensor for controlling operation of shifter to correct...
7386239, F16H 700, G01L 510
Patent
active
050190172
ABSTRACT:
In a monitoring arrangement for a belt drive in which a torque produced by a drive motor is transmitted by way of an endless drive belt to a rotary member to be rotated, the drive belt is provided in its longitudinal direction with markings which are adapted to be sensed and which are disposed at equal spacings from each other. First and second sensing members are arranged at a given spacing from each other in succession in the direction of travel of the belt and are operable to sense the markings on the drive belt as they move past the sensing members. The sensing members output corresponding sensing signals in response to the markings. A signal evaluation member is connected to the first and second sensing members, for interrelating the sensing signals in respect of time in dependence on the spacing between the first and second sensing members and the speed of movement of the drive belt.
REFERENCES:
patent: 3452853 (1969-07-01), Mabon
patent: 4087800 (1978-05-01), Lee
patent: 4249080 (1981-02-01), Pritchett et al.
patent: 4372172 (1983-02-01), Gombocz et al.
patent: 4404560 (1983-09-01), Williams, Jr.
patent: 4557372 (1985-12-01), Rajagopal
Bui Thuy M.
Gebr. Hofmann GmbH & Co. KG Maschinenfabrik
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