192 clutches and power-stop control – Clutches – Operators
Patent
1990-11-15
1992-09-22
Braun, Leslie A.
192 clutches and power-stop control
Clutches
Operators
192 84C, 403372, F16D 2700
Patent
active
051489023
ABSTRACT:
An electromagnetic coupling device is proposed to obviate several drawbacks in the conventional devices, namely, to prevent loose fixing in axial direction which gives rise to undesirable rotation of the rotary shaft following the rotor, to reduce the production cost due to the use of magnetic pole in the rotor, to reduce lengthy lengthy assembly work brought about by many fixing rings and to prevent slipping out of the hub and the rotary shaft encountered in the conventional coupling devices.
In order to obviate the drawbacks encountered in the conventional coupling device, a rotor retainer is placed around the rotary shaft to urge a rotor against a hub, in addition, the rotary shaft is provided with fixing portions of a minimum number, such as axially extending legs at least one of which is attached with a claw, stepped portions, a groove and so forth for preventing slipping out of the rotary shaft, hub and driven shaft.
By virtue of such simplified structure, assembly of the related parts and components has remarkably reduced together with reduced production cost.
REFERENCES:
patent: 3624768 (1971-11-01), Nussli
patent: 4570768 (1986-02-01), Nishimura et al.
patent: 4664238 (1987-05-01), Nishino et al.
patent: 4813808 (1989-03-01), Gehrke
patent: 4981390 (1991-01-01), Cramer, Jr. et al.
Braun Leslie A.
Pitts Andrea
Shinko Denki Kabushiki Kaisha
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