Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Patent
1990-02-07
1991-06-11
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Multiple contact type
335131, 335132, H01H 6702
Patent
active
050235818
ABSTRACT:
An electromagnetic switch for use, for example, in combination with a starter motor for a vehicle, having an appropriate wiping allowance adjusted in assembling the electromagnetic switch. The electromagnetic switch comprises a case, a coil bobbin mounted with a solenoid, a plunger with an integral contact rod axially slidably received in the bore of the coil bobbin, a stationary core fixedly held on the open end of the case so as to limit the range of movement of the plunger, a contact holding member axially slidably mounted on the contact rod of the plunger, a moving contact held on the contact holding member, a stopping means provided at the extremity of the contact rod, a cap joined to the case, and a stationary contact attached to the cap opposite to the moving contact. An elastic packing and a wave spring are inserted between the cap and the stationary core, and the brim of the open end of the case is crimped by rolling so that the cap is held firmly in place on the case and the elastic packing and the wave washer are compressed in a thickness to form an appropriate gap between the movable contact and the stopping means when the plunger is attracted to the stationary core and the movable contact is in contact with the stationary contact.
REFERENCES:
patent: 4450423 (1984-05-01), Morishita
patent: 4677407 (1987-06-01), Tanaka et al.
patent: 4755781 (1988-07-01), Bosner
patent: 4779470 (1988-10-01), Morita et al.
Harris George
Mitsubishi Denki & Kabushiki Kaisha
LandOfFree
Electromagnetic switch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electromagnetic switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic switch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-785331