192 clutches and power-stop control – Clutches – Torque responsive
Patent
1981-03-23
1983-11-22
Bonck, Rodney H.
192 clutches and power-stop control
Clutches
Torque responsive
192 84C, 192111A, F16D 1375, F16D 2710
Patent
active
044163592
ABSTRACT:
A single surface electromagnetic cone clutch or braking device is disclosed which transmits torque from an input shaft to a drive plate member, through a plurality of spherical members, to a conical friction ring member and then to the output member. The spherical members are located in mutually opposing conical recesses within the drive plate member and an annular flange which is secured to the friction ring member. The clutch engaging forces are increased by the camming action of the spherical members in the conical recesses. The drive plate member also has a flexing member which permits the drive plate member to flex axially in order to minimize backlash noise associated with spherical balls engaging conical recesses. The armature is disposed normal to the electromagnetic winding to enable a large axially directed flex path to provide for a strong clutch engaging force. The friction ring member is threadably connected to the armature with relative movement prevented between the armature and the friction ring member by an axial wear and thread retarder member. The axial wear and thread retarder member biases the armature toward the pole faces of the electromagnetic winding. This biasing force insures that the threads in the friction ring member cooperatively engage the threads in the armature member. The biasing force of the retarder member biases the forward flank of the threads of the further ring member into engagement with the forward flank of the thread of the armature regardless of the thread clearance between the threads.
REFERENCES:
patent: 2214391 (1940-09-01), Weydell
patent: 2816636 (1957-12-01), Weibel
patent: 3679034 (1972-07-01), Miller
patent: 3994379 (1976-11-01), Miller et al.
patent: 4079821 (1978-03-01), Miller
patent: 4189042 (1980-02-01), Miller
patent: 4194610 (1980-03-01), Miller
Bonck Rodney H.
Facet Enterprises, Incorporated
VanOphem Remy J.
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