Patent ID: 7990238

Claim:
A button system for industrial AC/DC relays comprising: a casing for containing the core of the relay, said casing comprising a cover board, a housing, wherein the cover board and the housing fixed with each other, and at least an opening for pulling the button is arranged on the cover board; said button pivoted on upper portion of the casing by a rotatable cross shaft, said button comprising a pulling portion which can be pull in the opening of the casing and a toughing portion which can be rotated in the opening according to the action of the pulling portion; a driving block installed in the casing, the end of the driving block abut against the toughing portion of the button, the driving block comprising a strip driving arm which can be pushed to move forwardly by the rotation of the toughing portion of the button, and two U-shaped restoring arms incorporated on both sides of the end of the strip driving arm, the outer end of said restoring arms fixed to the casing; an indicator board having rotatable cross shafts in the middle portion, said indicator board pivoted in the casing via said cross shafts, the upper portion of the indicator board abut against the front end of the strip driving arm of the driving block, and the lower portion cooperated with a core propelling block; the core propelling block horizontally mounted in the casing and connected with the movable contact pieces of the core of the relay, a groove disposed on the top of the core propelling block, and the lower end of the indicator board matched in the groove of said core propelling block.