US 2001/0032778 A1 · Lock switch apparatus

Abstract

A lock switch apparatus comprises: a key insertion hole 7; a detection switch unit 9 for detecting the insertion of an operation key 2 in the key insertion unit 7; a lock unit 11 for locking the operation key 2 when the operation key 2 is inserted in the key insertion hole 7; and a lock detection unit 13 for detecting the operation state of the lock unit 11. The lock unit 11 is configured so that the operation key 2 is locked by the attraction of a solenoid 12, a movable system of a solenoid-side movable portion is configured by providing an associatively movable portion which moves in association with the solenoid-side movable portion with respect to the solenoid-side movable portion of the solenoid 12, and vibration/impact absorbing means 14 is provided to provide a balance state of operating forces applied to the movable system. Thereby, there can be provided a lock switch capable of preventing a malfunction of switch signal due to an inertia force of the solenoid-side movable portion of the solenoid and capable of being made small in size.

Claims8

Dependent claims

A lock switch apparatus comprising:

a key insertion unit;
a detection switch unit for detecting the insertion of an operation key in said key insertion unit;
a lock unit for locking said operation key when said operation key is inserted in said key insertion unit;
and a lock detection unit for detecting the operation state of said lock unit,
wherein said detection switch unit has a plunger that is moved by the insertion of said operation key in said key insertion unit to operate a switch element,
said lock unit has a slide lock member for locking said plunger by the movement thereof and a solenoid for operating a solenoid-side movable portion by being energized,
said solenoid-side movable portion of said solenoid is connected to said slide lock member by a lever having a turning center in an intermediate portion thereof, and
said slide lock member is moved at the ratio of said lever with respect to the operation of said solenoid-side movable portion, whereby said plunger is locked.

5 more elements

A lock switch apparatus comprising:

a key insertion unit;
a detection switch unit for detecting the insertion of an operation key in said key insertion unit;
a lock unit for locking said operation key when said operation key is inserted in said key insertion unit;
and a lock detection unit for detecting the operation state of said lock unit,
wherein said lock unit is configured so that said operation key is locked by the attraction of a solenoid, a movable system of a solenoid-side movable portion is configured by providing an associatively movable portion which moves in association with said solenoid-side movable portion with respect to said solenoid-side movable portion of said solenoid, and vibration/impact absorbing means is provided to provide a balance state of operating forces applied to said movable system.

2 more elements

Dependencies are inferred from the claim text.

Lock switch apparatus

Life of this patent

Lock switch apparatus

Life of this patent

Abstract

Claims8