192 clutches and power-stop control – Clutches – Operators
Patent
1996-01-23
1997-09-16
Lorence, Richard M.
192 clutches and power-stop control
Clutches
Operators
192 30V, F16D 27112
Patent
active
056670508
ABSTRACT:
An electromagnetic coupling apparatus includes an armature hub, a leaf spring, an armature, a rubber stopper, a fixing member, a rubber vibration insulator, a rotor, an electromagnetic coil, and a field core. The armature hub is fixed to the rotating shaft of a unit and has a flange portion formed with a through hole. The fixing member is fixed to the armature and has a trunk portion and a head portion formed with an annular wall portion on its outer circumference. The rubber vibration insulator is disposed between a side surface of the flange portion of the armature hub and the head portion of the fixing member, and is constituted by a cylindrical portion and a disk portion. The rotor opposes the armature through a first gap of a predetermined size. A second gap larger than the first gap is formed between a distal end of the wall portion of the fixing member and the flange portion of the armature hub, and a third gap is formed between one side surface of the disk portion of the rubber vibration insulator and the side surface of the flange portion of the armature hub.
REFERENCES:
patent: 4808870 (1989-02-01), Gonda
patent: 5009297 (1991-04-01), Gonda
patent: 5046594 (1991-09-01), Kakinuma
patent: 5184705 (1993-02-01), Sekiguchi et al.
patent: 5445256 (1995-08-01), Tabuchi et al.
Lorence Richard M.
Ogura Clutch Co. Ltd.
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