Title: Semi-automatic roller locking clutch

Abstract: A semi-automatic roller type locking clutch for use between concentric rotational driving and driven members comprises a semi-automatic locking means and a manually activated locking means. The semi-automatic locking means is adapted to displace a plurality of rollers each disposed within a plurality of grooves circumferentially disposed on one member up onto one edge of the grooves and into contact with one edge of each of a plurality of grooves disposed on the other member whenever the driving member rotates faster than the driven member. The manually activated locking means is adapted to urge a clutch ring member slidably splined to one member into splined engagement with the other member when the members are nonrotational with respect to each other.

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Inventors: Telford, Thomas M. (Gladstone, OR, US)

Application Number: 940963
Filing Date: 1978-09-11
Publication_date: 1980-09-23
Assignee: Warn Industries, Inc. (Kent, WA)
Primary Class(es): 192/48.6 192/36, 192/38, 192/44, 192/54.2, 192/69.43, 192/94, 192/95, 403/1
Other Classes:
US Patent Ref:

2684140	Jul, 1954	Warn	192/94.
3414096	Dec, 1968	Reed	192/44.
3442361	May, 1969	Hegar	192/94.
3718213	Feb, 1973	Hegar et al.	192/95.

Other Refs: 803907

Nov, 1958	GB

Primary Examiner: Herrmann, Allan D.
Assistant Examiner:
Attorney: Graybeal & Uhlir