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US 6,484,861 B1Granted
Wrap spring clutch
AssigneeDana Corporation
InventorJames M. Wussow
Life of this patent
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AssigneeDana Corporation
InventorJames M. Wussow
Estimating the term…
An electromagnetically actuated wrap spring clutch is provided. The inventive clutch includes a shaft hub disposed about a longitudinal axis and an input hub that is coaxial with the shaft hub. The input hub includes a first portion having a first diameter and a second portion having a second diameter wherein the second diameter is smaller than the first diameter and the second portion is nearer the shaft hub than the first portion. The clutch also includes a spring connected to the input hub and disposed radially outwardly of a portion of the shaft hub and the first and second portions of the input hub. The spring may be symmetrical, having a uniform diameter and including first and second tangs disposed at either end of the spring wherein both tangs extend radially outwardly. The clutch further includes a control collar connected to the spring and a coil disposed about shaft hub. The use of the multiple diameter input hub and symmetrical spring reduce assembly time, cost, and clutch engagement time.
An electromagnetically actuated wrap spring clutch, comprising:
An electromagnetically actuated wrap spring clutch, comprising:
An electromagnetically actuated wrap spring clutch, comprising:
Dependencies are inferred from the claim text.