H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/326
H01H 3/00 (2006.01) H01H 23/28 (2006.01)
Patent
CA 1095570
ABSTRACT OF THE DISCLOSURE A switch wherein a contact for star connection and a contact for delta connection are disposed at right and left parts of one of pole chambers formed by partitioning the inside of the casing, and each of these contacts is composed of movable contacts provided with a contactor at both ends of a long plate, and two pieces of this long plate are made as one set and the plate are put together in back-to-back relation, and being suspended at the center positions of right and left of the pole chamber, and solid contacts made of conductive long plate member and being integrally provided with a contact member portion and conductor portion and being bent, and several pieces of the conductive long plate members are formed as one set and being assembled at the top and bottom positions of the pole chamber so as to provide the star-delta connection, and then movable contacts are provided with the plate springs along the backs of the long plates and the plate springs are embraced at the center portion for each of the long plates, and the plate spring is pivotally fixed to the cross bar provided with the manipulating lever at the top and the bottom is pivotal- ly fixed to the bottom portion of the outer casing, and the plate spring is pressed to curve according to the tilting manipu- lation of the manipulating lever to shift the movable contacts in right and left directions to operate, and the manipulating lever is provided with an erroneous manipulation preventing mechanism, and this erroneous manipulation preventing mechanism if formed with concave portions on the top surfaces of the bearings to hold the star position, neutral position and delta position, and the control plate is installed slidably between the bearings, and this control plate is formed with concave portions on its top surface to hold the star position, neutral position and delta position, and the key shaft is made engage- able with the bearings and the concave portions of the control plate.
308747
Kirby Eades Gale Baker
Miyamoto Motomu
LandOfFree
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