Vorrichtung zum Einzichen und Festhalten eines Sicherheitsgurtes

摘要

Retractable safety belt apparatus in which a strap is extended from a reel to a selected length and in which the apparatus is thereafter locked automatically to prevent further extension of the strap. Disclosed are: various mechanisms for controlling the operation of the extension-preventing device, including mechanisms driven by the reel and mechanisms responsive to strap tension; different types of strap clamps which open automatically during retraction of the strap and close automatically after desired extension of the strap; mechanisms which facilitate retraction of the strap; a mechanism which temporarily disables the extension-preventing device to permit the user to lengthen the belt after it has been fastened; and a belt fastener which ensures that the extended strap will always retract a bit after the belt is fastened.