Patent ID: 9685282
Date: 2017-06-20
CPC Classifications: H01H,H02B

Claim:
1. A door interlock device of a cradle having a withdrawable vacuum circuit breaker, the device comprising: a pressing unit that is provided on one end portion of a shutter lever driving a terminal shutter of a cradle and rotates centering on a lever shaft; a driving force transfer unit that is installed on a cradle side frame, the driving force transfer unit performing a rotary motion or a sliding motion by a force applied from the pressing unit; and a sliding member that is configured to lock or unlock a door lock plate in response to a driving force transferred from the driving force transfer unit, wherein the driving force transfer unit comprises: a first connection member that is horizontally slidably coupled on the cradle side frame and shaped to include a plurality of horizontal sliding holes, wherein supporting members fixed to the cradle side frame are inserted in the horizontal sliding holes to allow the first connection member to slide horizontally in response to the force applied from the pressing unit; and a second connection member that is rotatably coupled on the cradle side frame, and has one end connected to the first connection member and the other end connected to the sliding member.