Abstract: A device for adjusting the belt length in a safety belt system comprises a frame and a winder element rotatably journalled thereon, from which the belt may be unreeled, upon actuation of a key, against the force of a spring and on to which it may be wound again automatically by the force of this spring. To ensure the immobilization of the belt at its required length, the winder element interengages with a lock releasable by the key.

Abstract: A belt lock for safety belt systems, more especially a small-size lock, comprising a lock housing with a closure mechanism which contains an ejector, with a release key and with at least one eye for the fastening of a first belt strap end, and at least two further endpieces, held in the working position by the mechanism, for further belt strap ends. The endpieces have respective detent arms which overlie one another and are held in a predetermined plug-in position with respect to one another in the working position, being unlockable by means of the release key co-operating with a metal spring which actuates the ejector. The closure mechanism has mutually opposed resilient counter-detent tongues which receive between them the detent tongues of the endpieces and in that the release key which unlocks the detent tongues is provided on a lateral narrow side of the lock housing. The entire belt lock with the exception of the ejector spring is made of plastics material.