초록 ▼

A tongue includes a tongue base which can project therefrom. A solenoid at the forward end of a buckle attracts a tongue face plate. After the tongue base is inserted into the buckle, the tongue base is drawn deep into the buckle by the pawl portion of a hook. A latch plate is engaged with a hole at

A tongue includes a tongue base which can project therefrom. A solenoid at the forward end of a buckle attracts a tongue face plate. After the tongue base is inserted into the buckle, the tongue base is drawn deep into the buckle by the pawl portion of a hook. A latch plate is engaged with a hole at the forward end of the tongue plate, and a lock plate slides under pegs of a base, thereby latching the tongue base. The lock plate and the hook are advanced and withdrawn by a pinion which is rotated by a stepper motor, and when the pinion is reversely rotated, the tongue base is released from the latched state, and the tongue base is pushed out of the buckle by an ejector, thereby separating the tongue from the buckle.

대표청구항 ▼

An automatic buckling device comprising: a tongue having a plate-like tongue base projecting from a forward end of said tongue and a hole formed at a forward end portion of the tongue base; and a buckle which draws said tongue base of said tongue into an interior of said buckle so as to lock said to

An automatic buckling device comprising: a tongue having a plate-like tongue base projecting from a forward end of said tongue and a hole formed at a forward end portion of the tongue base; and a buckle which draws said tongue base of said tongue into an interior of said buckle so as to lock said tongue in said buckle and maintain connection therebetween; said buckle including: an admission space into which said tongue base is inserted; a hook formed at one side of the admission space and having a claw portion; a latch plate which is engageable with said hole of said tongue base; a lock plate having a notched portion and disposed on said latch plate in such a manner that said latch plate is disposed into said admission space and held in a state of being latched by the notched portion provided on said lock plate; an ejector provided in said admission space so as to be advanced and withdrawn in a direction in which said tongue base is advanced and withdrawn; an ejector spring for urging said ejector in a direction in which said tongue base is pushed back; a sensor for detecting entrance of said tongue base; a stopper portion which comes into contact with said lock plate when said lock plate assumes a latching state so as to prevent withdrawal of said latch plate in a direction in which said latch plate is released from the latched state; and a driving mechanism for driving said hook and said lock plate in accordance with a detection signal of said sensor, said driving mechanism including; a motor; a pinion rotated by the motor; a locking rack and a hook drawing rack which mesh said pinion and are movable in the direction in which said tongue base advances and withdraws; interlocking means for interlocking said locking rack and said hook drawing rack; and a slider which is freely movable in the direction of advance and withdrawal of said tongue base, and which pivotally supports a longitudinal middle portion of said hook so as to advance said hook and withdraw said claw portion of said hook from said admission space when said hook drawing rack advances toward the entrance of said buckle, while causing said claw portion of said hook to enter .said admission space and withdrawing said hook when said hook drawing rack withdraws, said lock being moved into said admission space and retained in said hole of said tongue base by said driving mechanism when said tongue base advances in said admission space.