Patent ID: 8756964
Filing Date: 2014-06-24
Classification: B62H,E05B,Y10T

Abstract:
1. A centralized unlocking operation device comprising a fixed cylinder body ( 14 ), a rotor ( 15 ) that is inserted into the cylinder body ( 14 ) so as to be capable of pivoting between a neutral position and first and second operating positions set on opposite sides of the neutral position in response to a pivoting operation by a legitimate mechanical key ( 11 ), a spring ( 32 ) that urges the rotor ( 15 ) toward the neutral position, a first operating arm ( 33 ) that pivots together with the rotor ( 15 ) so as to unlock a first locking mechanism ( 12 ) when the rotor ( 15 ) is pivoted from the neutral position to the first operating position side and that remains at rest when the rotor ( 15 ) is pivoted from the neutral position to the second operating position side, and a second operating arm ( 34 ) that pivots together with the rotor ( 15 ) so as to unlock a second locking mechanism ( 13 ) when the rotor ( 15 ) is pivoted from the neutral position to the second operating position side and that remains at rest when the rotor ( 15 ) is pivoted from the neutral position to the first operating position side, characterized in that the first operating arm ( 33 ) is provided with a first pressure-receiving part ( 35 ), the second operating arm ( 34 ) is provided with a second pressure-receiving part ( 36 ), a first pressing face ( 38 ) that abuts against and imposes a pressing force on the first pressure-receiving part ( 35 ) when the rotor ( 15 ) is pivoted from the neutral position to the first operating position side and a second pressing face ( 39 ) that abuts against and imposes a pressing force on the second pressure-receiving part ( 36 ) when the rotor ( 15 ) is pivoted from the neutral position to the second operating position side are formed on a cam part ( 37 ) provided on the rotor ( 15 ) so as to have a shape that avoids abutment against the second pressure-receiving part ( 36 ) when the rotor ( 15 ) is pivoted from the neutral position to the first operating position side and avoids abutment against the first pressure-receiving part ( 35 ) when the rotor ( 15 ) is pivoted from the neutral position to the second operating position side, the spring ( 32 ) is provided between the first and second operating arms ( 33 , 34 ) so as to urge the first and second operating arms ( 33 , 34 ) in a direction in which the first pressure-receiving part ( 35 ) abuts against the first pressing face ( 38 ) and the second pressure-receiving part ( 36 ) abuts against the second pressing face ( 39 ), and the cylinder body ( 14 ) is provided with a first restricting part ( 55 ) that abuts against the first pressure-receiving part ( 35 ) from the same side as the first pressing face ( 38 ) when the rotor ( 15 ) is at the neutral position and a second restricting part ( 56 ) that abuts against the second pressure-receiving part ( 36 ) from the same side as the second pressing face ( 39 ) when the rotor ( 15 ) is at the neutral position.