DE3214026C1 - Seat belt lock - Google Patents

Description

The invention relates to a lock for seat belts in which a buckle tongue connected to the belt strap can be plugged in and latched to it, the latching being releasable via a hand-operated push button is.

The locks of seat belts in modern vehicles are placed as low as possible, in order to achieve an optimal retention effect. However, there occurs the disadvantageous effect that the Castle z. B. is hidden from the view of the seat belt user by hanging clothes, which is has an unfavorable effect on the insertion of the lock tongue into the seat belt buckle.

The present invention was therefore based on the object of avoiding this disadvantage and a To create an arrangement in which, despite a deep seat belt buckle, the buckle tongue can be inserted properly is secured in the castle.

This object is achieved in that the housing of the lock of at least two in Insertion direction of the lock tongue is formed against each other displaceable parts, these parts at Not locked in the lock tongue by a pressure element (compression spring) in a pushed apart Position held and when inserting the lock tongue can be pushed together into a retracted position are.

A particularly simple lock structure is achieved when, in an advantageous embodiment of the invention, the Latching of the two parts of the housing in the retracted position via the locking mechanism of the Lock tongue takes place.

The subject matter of the invention is to be described in the following on the basis of an exemplary embodiment shown in the drawing are explained in more detail.

In the drawing shows

F i g. 1 shows a vertical section through an inventive Belt buckle in the open state, and

F i g. 2 shows a section corresponding to FIG. 1, but with the lock pushed together and locked Lock tongue.

The lock 1 of a seat belt system shown in the drawing, which is used to hold a lock tongue 2 connected to a seat belt in a manner not shown, has a housing 3 consisting of two parts 3a, 3b. The two parts 3a, 3b of the housing 3 are telescopically displaceable relative to one another and are under the action of a compression spring 4 which strives to move the parts 3a, 36 into the positions shown in FIG. 1 of the drawing shown position apart.

When inserting the lock tongue 2 into the lock 1, the upper housing part 3a is against the force of the Compression spring 4 shifted downward until one against the force of a spring, not shown, of a End position is reversed into another end position pivotable locking hook 5 and thereby the Lock tongue 2 in the buckle 1 secures.

The upper part 3a of the housing 3 is held down in this position in that the upper part of the Lock tongue 2, viewed in the direction of arrow P, is wider than the housing part 3a, so that the lock tongue 2 opens whose top rests.

The release of the locking of the lock tongue 2 and the two housing parts 3a, 36 can be done by actuation a push button 6, which acts on the latching hook 5 via a plunger 7

The attachment of the buckle shown z. B. on a vehicle seat takes place in not shown Way over a tab 8.

1 sheet of drawings

Claims (2)

Patent claims: 1. Lock for seat belts, into which a lock tongue connected to the belt strap can be inserted and locked with this, the locking being releasable via a manually operated pushbutton, characterized in that the housing (3) of the lock (1) of at least two in the insertion direction the lock tongue (2) mutually displaceable parts (3a, 3b) is formed, the two parts (3a, 3b) being held in a pushed apart position by a pressure element (compression spring) when the lock tongue (2) is not locked in the lock (1) and when Insertion of the lock tongue (2) can be pushed together into a retracted position. 2. Lock according to claim 1, characterized in that the locking of the two parts (3a, 3b) of the housing (3) takes place in the retracted position via the locking mechanism of the lock tongue (2).