Air gap presetting sensor holder

Details Air gap presetting sensor holder Air gap presetting sensor holder

1998-04-23

2000-06-06

Scherbel, David A.

Work holders

Holder inserted within work aperture

269900, 269 47, B23Q 100

Patent

active

060708654

ABSTRACT:
A bracket and sensor body of a magnetic sensor, wherein relative rotation therebetween provides precise setting of an optimal air gap, and wherein operation is very quick, easy and reliable and wherein the air gap setting is precisely repeated each time a magnetic sensor is replaced or re-installed. In a first preferred embodiment, the bracket is provided with a sensor aperture having a predetermined shape, and at least one cutting tab is provided at the sensor aperture which has a predetermined pitch angle relative to the plane of the bracket. The sensor body is composed of a relatively softer material, such as a plastic, which is cuttable by the harder material of the one or more cutting tabs, wherein the shape of the sensor body is generally complementary to the predetermined shape of the aperture. Rotation of the sensor body relative to the bracket causes the one or more cutting tabs to cut into the sensor body. Depending upon the pitch of the at least one cutting tab relative to the plane of the bracket, the sensor body moves relative to the bracket in a direction normal to the plane of the bracket. Various structures are utilizable to prevent over rotation, resist back rotation and assure proper initial orientation of the sensor body relative to the sensor aperture.

REFERENCES:
patent: 4193588 (1980-03-01), Doneaux
patent: 5475062 (1995-12-01), Ishizaki et al.
patent: 5951191 (1999-09-01), Schroeder et al.
patent: 5967473 (1999-10-01), Singbartl

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