Multistable element

Abstract

The present invention relates to a spring element having two bistable flat springs and two flat connecting elements which are arranged at the longitudinal ends of the bistable flat springs, which are aligned parallel to one another, and connect them to one another.

1 . Spring element with
 at least two bistable springs and   two flat connecting elements, which are arranged at the longitudinal ends of the bistable flat springs aligned parallel to each other and connecting the two bistable springs to each other   characterized in that   at least one, preferably two, kink line is arranged on each bistable spring subdividing each of the bistable springs into at least two areas,   at least one of the areas is separately, thus individually, releasable from a linear state into a curved state.   
     
     
         2 . Spring element according to  claim 1   characterized in that   that bistable springs are flattened at the ends.   
     
     
         3 . Spring element according to  claim 1   characterized in that   that a gap is provided between the parallel aligned bistable flat springs.   
     
     
         4 . Spring element according to  claim 1   characterized in that p   that the bending axes of the flat springs extend transversely to the longitudinal direction of the flat springs.   
     
     
         5 . Spring element according to  claim 1   characterized in that   that the flat springs and the connecting elements are point-connected.   
     
     
         6 . Spring element according to  claim 1   characterized in that   that the spot connection is laser welded.   
     
     
         7 . Spring element according to  claim 1   characterized in that   that the flat springs and the connecting elements are connected by a curved laser weld.   
     
     
         8 . Spring element according to  claim 1   characterized in that   that the connecting elements are designed as flat rigid plates.   
     
     
         9 . Spring element according to  claim 1   characterized in that   that the connecting elements and the flat springs overlap to a depth equal to the width of a flat spring.   
     
     
         10 . Spring element according to  claim 1   characterized in that   the kink lines are arranged on the individual end portions of the bistable springs next to the connection part of the individual bistable spring with each flat connecting element separating the part of the bistable spring that is attached to the flat connecting element from the rest of the bistable spring.