Abstract: A formfitting securing apparatus for a caster includes a running wheel, a fork and a rotation-blocking engagement part, for rotationally blocking the running wheel of the caster with respect to a geometric impeller wheel axis. A first spring also acts on the rotation-blocking engagement part in order to move it from an initial position into an engagement position. The first spring is formed by a lever arm of a lever part, a second spring can, with the movement of the rotation-blocking engagement part into the engagement position, be tensioned for the return movement back into the initial position, and the first spring is stronger than the second spring. Furthermore, a fork-shaped ram part can have ram extensions of different lengths, with only one ram extension being arranged to act on the lever part.

Abstract: A formfitting securing apparatus for a caster includes a running wheel, a fork and a rotation-blocking engagement part, for rotationally blocking the running wheel of the caster with respect to a geometric impeller wheel axis. A first spring also acts on the rotation-blocking engagement part in order to move it from an initial position into an engagement position. The first spring is formed by a lever arm of a lever part, a second spring can, with the movement of the rotation-blocking engagement part into the engagement position, be tensioned for the return movement back into the initial position, and the first spring is stronger than the second spring. Furthermore, a fork-shaped ram part can have ram extensions of different lengths, with only one ram extension being arranged to act on the lever part.

Abstract: A formfitting securing device for a roller has a rotation blocking engagement part which is biased into an engagement position by means of a first spring. The first spring exerts a bias onto the rotation-blocking engagement part both in the engaged position as well as in the nonengaged position, and a bias is achieved in the non-engaged position by acting on the rotation-blocking engagement part by means of a second spring.

Abstract: A formfitting securing device for a roller has a rotation blocking engagement part which is biased into an engagement position by means of a first spring. The first spring exerts a bias onto the rotation-blocking engagement part both in the engaged position as well as in the nonengaged position, and a bias is achieved in the non-engaged position by acting on the rotation-blocking engagement part by means of a second spring.