Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
149 words
In combination with an electromagnetic clutch of the type having a plurality of torque transmitting friction members adapted for releasably coupling bidirectional driving means to bidirectional driven means, and wherein pressure is exerted on said friction members by a flux permeable disc-shaped armature''s response to a magnetic force created by electromagnetIc actuating means, the improvement comprising: two-way self-adjusting wear compensating means, said wear compensating means including an annular pressure plate member axially movable to selectively engage and disengage said friction members, said pressure plate being coaxially circumjacent to said armature; and cam means interconnecting said pressure plate and said armature to transmit first axial motion therebetween when said actuating means is energized, said cam means adapted to convert rotational motion of said armature into second axial motion of said pressure plate as the torque transmitting friction members wear, said cam means being operative in either direction of clutch rotation.
Claim 2
Dependent Claim
149 words
In combination with an electromagnetic clutch of the type having a plurality of torque transmitting friction members adapted for releasably coupling bidirectional driving means to bidirectional driven means, and wherein pressure is exerted on said friction members by a flux permeable disc-shaped armature''s response to a magnetic force created by electromagnetIc actuating means, the improvement comprising: two-way self-adjusting wear compensating means, said wear compensating means including an annular pressure plate member axially movable to selectively engage and disengage said friction members, said pressure plate being coaxially circumjacent to said armature; and cam means interconnecting said pressure plate and said armature to transmit first axial motion therebetween when said actuating means is energized, said cam means adapted to convert rotational motion of said armature into second axial motion of said pressure plate as the torque transmitting friction members wear, said cam means being operative in either direction of clutch rotation.
Claim 3
Dependent Claim
41 words
The combination as claimed in claim 1 wherein said cam means comprises: a plurality of recesses formed within said pressure plate; and a plurality of projections protruding from said armature adapted to coactively engage with said recesses within said pressure plate.
Claim 4
Dependent Claim
16 words
The combination as claimed in claim 2 wherein said recesses within said pressure plate are V-shaped.
Claim 5
Dependent Claim
39 words
The combination as claimed in claim 3 wherein said projections are cylindrical pins fixedly secured in the radially outer surface of said armature and slidably received within said recesses of said pressure plate for relative rotation and coaction therewith.
Claim 6
Dependent Claim
23 words
The combination as claimed in claim 1 including further means for resiliently restraining axial movement of said armature relative to said pressure plate.
Claim 7
Dependent Claim
30 words
The combination as claimed in claim 1 wherein the electromagnetic actuating means comprises a magnet body disposed about said driving means and an electromagnetic winding disposed within said magnet body.
Claim 8
Dependent Claim
48 words
The combination as claimed in claim 1 including further clutch disengagement means, said disengagement means including a plurality of springs interconnecting said armature-pressure plate assembly to said driven rotary member and adapted to exert an axial load on the armature opposite in direction to the electromagnetic engaging force.