An infant support structure is disclosed. The infant support structure includes a support base to support the infant support structure on a supporting surface. The infant support structure also includes a seat supported by the support base at a distance above the supporting surface, a lift mechanism configured to selectively impart vertical movement to the seat, and a rotation mechanism configured to, independently of the lift mechanism, rotate the seat about a pivot point. The lift mechanism is configured to allow rotational movement to be imparted to the seat while the seat is undergoing vertical movement.

A swinging playground device includes a swing platform. The swinging playground device also includes a skirt coupled to the swinging platform and fills an area below the swinging platform as the swinging platform moves in a swinging motion.

A swinging playground device includes a swing platform. The swinging playground device also includes a skirt coupled to the swinging platform and fills an area below the swinging platform as the swinging platform moves in a swinging motion.

A swinging playground device includes an acceleration assembly. The acceleration assembly includes a force storing component. The force storing component stores potential energy when the swinging playground device is in a resting position and releases the stored potential energy to assist in initiating motion of the swinging playground device.

A swinging playground device includes an acceleration assembly. The acceleration assembly includes a force storing component. The force storing component stores potential energy when the swinging playground device is in a resting position and releases the stored potential energy to assist in initiating motion of the swinging playground device.