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Browse Prior Art Database

Tow Load Minimum Wear Spring Clutch

IP.com Disclosure Number: IPCOM000074391D
Original Publication Date: 1971-Apr-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 2 page(s) / 47K

Publishing Venue

IBM

Related People

Rosenthal, AB: AUTHOR

Abstract

This spring clutch minimizes wear on the spring by eliminating contact between the spring and the continuously running input arbor when the output arbor is stopped.

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Tow Load Minimum Wear Spring Clutch

This spring clutch minimizes wear on the spring by eliminating contact between the spring and the continuously running input arbor when the output arbor is stopped.

The conventional design of spring clutch is shown at A with an input arbor 1, an output arbor 2, and a suitable coupling means shown generally at 3. A magnet 4 serves to control armature 5 to engage or disengage the spring clutch. Detent 6 is spring biased against the ratchet 7 fastened to the output arbor to prevent reverse rotation of the output shaft.

As shown at B, a second projection 8 is provided on the first coil of spring 9 at a position 180 degrees from the end of the spring. Pins 10 and 11 in collar 12 of the clutch coact with the end of the spring and the projection 8 on the spring to lift the spring free from the input shaft when the clutch is disengaged to reduce spring wear to a minimum.

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