A support device for supporting at least one person located on it includes a stiff frame, which comprises a plurality of structural elements and a plurality of supporting elements. Securing means are provided for securing the stiff frame to roof bars of a motor vehicle. A plurality of rotatable arms is provided, each of which is hinged in a specific supporting element and is rotatable from a rest position into an operating position, and vice versa. Locking means are provided for locking the rotatable arms in an operating position. A cloth, on which said at least one person can be supported has connecting means by which it is connectable to the rotatable arms. The direction of longitudinal extension of each supporting element is not parallel to the longitudinal axis of the stiff frame and each rotatable arm is made of two portions inclined with respect to each other.

A wearable chair may include a foot frame configured to support a foot of a user; a shank link configured to rotatably connect to the foot frame; a connecting link provided in front of the shank link and configured to rotatably connect to the foot frame; a knee link configured to rotatably connect to each of the shank link and the connecting link; and a thigh link configured to extend from the knee link. The foot frame, the shank link, the connecting link, and the knee link constitute a four-bar linkage.

A portable ceiling joist support system is described. In some examples, a portable ceiling joist support system can include a first shaft equipped with a first slot and a first aperture, wherein each end of the first shaft is attached to one of a first set of two brackets configured to attach to a first ceiling joist. The portable ceiling joist support system can also include a second shaft equipped with a second slot and a second aperture, wherein each end of the second shaft is attached to one of a second set of two brackets configured to attach to a second ceiling joist.

A spring actuated rocking mechanism can be attached to the legs of a collapsible chair to allow for the user to rock in the collapsible chair. The mechanism may be attached at the factory or retrofitted to the chair. The rocking mechanism can be attached to the end of a leg or disposed within a leg, having a leg portion above and below the mechanism.

Systems and methods are disclosed for a seat base for a saddle seat. An example seat base may include a first face, the first face forming a planar surface to allow the seat base to be arranged on a surface to be seated, and a second face, the second face forming a concave surface, the concave surface restricting the lateral movement of the saddle seat by guiding the round lower part of the saddle seat towards the lowest point of the concave surface.

Seat assemblies are provided. In some embodiments, a seat assembly includes a seat member having a first seat surface, a second seat surface, and a third seat surface opposite the second seat surface. The third seat surface is substantially parallel to the second seat surface and the first seat surface is substantially perpendicular to both the second seat surface and the third seat surface. The seat assembly also includes a first side panel affixed to the second seat surface and a second side panel affixed to the third seat surface. Each one of those panels is substantially perpendicular to the first seat surface. The seat assembly further includes a bin movably affixed to the first side panel and the second side panel. The bin includes an open compartment and can be moved between a closed position that obstructs the compartment and an open position that permits access to the compartment.

A chair leg mountable coaster assembly includes a plate that is mountable to one of a plurality of legs of a chair. The plate extends laterally from the leg in a single direction that is orientated parallel to a plane that extends through bottom ends of the plurality of legs. The plate is one of a plurality of the plates, each of which is configured to be mountable to a respective one of the plurality of the legs so that each leg is engaged with one of the plates. The plates reduce penetration of the legs into a soft substrate, such as sand, dirt, and soil. The plates are sized to allow multiple ones of the chairs to be stacked without interference by the plates.

A foldable chair has frames connected to one another by cross supports, bases connected to the frames by base supports and frame supports, with springs secured between the base supports and frame supports to allow for back and forth movement of the frames when a user is seated in the chair. The foldable chair includes a pliant membrane providing a seating surface for supporting the user.

A wearable chair may include a foot frame configured to support a foot of a user; a shank link configured to rotatably connect to the foot frame; a connecting link provided in front of the shank link and configured to rotatably connect to the foot frame; a knee link configured to rotatably connect to each of the shank link and the connecting link; and a thigh link configured to extend from the knee link. The foot frame, the shank link, the connecting link, and the knee link constitute a four-bar linkage.

The present floor seat apparatus includes a base, a seat removably seatable in the base, and a tray engagable to the base. The base may be used as a seat by itself, with or without the seat and with or without the tray. The base includes a post. The seat includes a post through opening that engages the post and positions the seat in the seat receptacle of the base.