The invention relates to a backrest adjustment fitting having a locking and unlocking device which locks two fitting parts (10, 20) of the backrest adjustment fitting in a locking position (I), wherein a worm screw (40) having worm gearing (41) is associated with one of the fitting parts (10, 20) and a worm wheel (11) is associated with the other fitting part (10, 20), wherein the worm gearing (41) meshes with the worm wheel (11). The locking and unlocking device has two locking mechanisms (50, 50R; 60, 60A), wherein the first locking mechanism (50, 50R), in the locking position (I), acts on the worm screw (40) radially with respect to the longitudinal extension (X) of the worm screw (40), and the other locking mechanism (60, 60A), in the locking position (I), acts on the worm screw axially in the longitudinal extension (X) of the worm screw (40), such that the worm screw (40) having worm gearing (41) is arranged so as to be doubly braced in the worm wheel (11).
LEHNENEINSTELLBESCHLAG MIT EINER VER- UND ENTRIEGELUNGSEINRICHTUNG UMFASSEND ZWEI UNABHÄNGIG VONEINANDER EINSTELLBARE VERRIEGELUNGSMECHANISMEN
BACKREST ADJUSTMENT FITTING HAVING A LOCKING AND UNLOCKING DEVICE COMPRISING TWO MUTUALLY INDEPENDENTLY ADJUSTABLE LOCKING MECHANISMS
ACCESSOIRE DE RÉGLAGE DE DOSSIER PRÉSENTANT UN DISPOSITIF DE VERROUILLAGE ET DE DÉVERROUILLAGE COMPRENANT DEUX MÉCANISMES DE VERROUILLAGE POUVANT ÊTRE RÉGLÉS INDÉPENDAMMENT L'UN DE L'AUTRE
2023-07-26
Patent
Electronic Resource
German
European Patent Office | 2022
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