Manual activation device for a lock or a drive of a motor vehicle seat

摘要

Manual activation device for a lock or a drive of a motor vehicle seat with a vertical and/or angle-of-inclination adjustment feature which consists of an upper seat frame which is connected in an articulated fashion to a base, e.g. seat rail or floor assembly, by means of two pairs of adjustment levers and using a two-arm hand lever which is coupled to the upper seat frame and whose zero point position does not change relative to the upper seat frame when the vertical and/or angle-of-inclination adjustment feature is activated, the locking device or drive device being permanently connected to the base, characterised in that the coupling point (F) which is arranged at the end opposite the handle (70) of the activation lever (7) is connected in an articulated way to the locking device or drive device (10) by means of a coupling rod (5) via a second fixed coupling point (C) on the coupling rod (5), the length and the angle of inclination of the coupling rod (5) being calculated with respect to a base (1) as a function of the lengths and the angles of inclination of the adjustment levers (2, 3). <IMAGE>