Abstract: The invention relates to a fastening system for connecting two frame elements of a bed frame, in particular for an adjustable bed, wherein the two frame elements each comprise a hollow profile, the fastening system comprising: a mounting element, which is firmly attachable to an end of the first frame element, and a connector part, which is insertable into the hollow profile at an end of the second frame element and firmly connectable to second frame element, wherein the mounting element comprises at least one mounting hole, the connector part comprises at least one mounting spigot corresponding to the at least one mounting hole, which is designed to be plugged into the at least one mounting hole, the connector part comprises at least one mounting mechanism for a detachable, firm connection of the mounting element and the connector part.

Abstract: The invention relates to an electromagnetic actuator having a magnetically soft housing with at least two field coils which are distanced from each other axially, and an armature which is mounted in the housing concentrically to the field coils and which can slide axially, wherein the armature has at least one permanent magnet ring which encloses the armature radially. According to the invention, a non-magnetic sleeve is included which, together with the permanent magnet ring, radially surrounds the armature.

Abstract: The invention relates to an electromagnetic actuator having a magnetically soft housing with at least two field coils which are distanced from each other axially, and an armature which is mounted in the housing concentrically to the field coils and which can slide axially, wherein the armature has at least one permanent magnet ring which encloses the armature radially. According to the invention, a non-magnetic sleeve is included which, together with the permanent magnet ring, radially surrounds the armature.