Lock for vehicle doors or lids

Abstract

According to the invention, when the door is locked, a locking part () is displaced into a rotary latch (), which is first pivoted from its open position into a preliminary detent position. The rotary latch () is spring-loaded () in the direction of its open position and is usually supported on a catch () by means of an initial detent section (). The rotary latch () is then rotated further by means of a motor-driven closing aid with the aid of a drive mechanism () and an eccentric element (), until it reaches a primary detent position, in which the catch () rests on a primary detent section of the rotary latch (). To obtain a reliable lock that can be universally used, a toggle-joint lever pair () and a spring-loaded follower () are provided between the eccentric element () and the rotary latch (). One fixed end () of said toggle-joint lever pair () is rotatably mounted in a locally fixed bearing () and the other free end () is forcibly guided by guide elements () and simultaneously supports the spring-loaded follower (). The toggle-joint lever pair () is supported on a control curve () of the eccentric element (). The closing displacement is attained by the extension and/or bending of the toggle-joint lever pair. The follower then seizes the rotary latch () and propels it in a motor driven manner from its preliminary detent position into its primary detent position.