Abstract: A swing apparatus includes an arm assembly including a seat, and a frame assembly coupled to the arm assembly. The frame assembly defines a pivot axis about which the arm assembly rotates during operation of the swing apparatus. The swing apparatus also includes an electromagnet disposed on the frame assembly, and a plurality of permanent magnets disposed on the arm assembly and positioned to define an arc centered on the pivot axis. The electromagnet has an angular offset about the pivot axis relative to the plurality of permanent magnets positioned along the arc when the swing apparatus is in a neutral position.

Abstract: A device includes a base including a base locking structure configured to couple to a child holding apparatus and a toy bar including a bar locking structure adjacent the base locking structure. The base locking structure or the bar locking structure includes an extension from a hub with a protrusion extending therefrom, the extension being deflectable relative to the hub and while the other of the base and bar locking structures includes a recess positioned to receive the protrusion when the toy bar is in a first orientation relative to the base. The recess is configured to engage the protrusion when the toy bar is rotated so that the extension deflects away from the locking receptacle as the protrusion is moved out of the recess and, when rotated so that the protrusion is out of contact with the locking receptacle or the protrusion is received in the recess, the extension reverts to a relaxed state.