A folding chair (100) comprises as main components a mainframe (1), a seat (2) and a back leg support (3). At least one of the main components is uniplanar and the others fit within a plane of the at least one main component when the chair (100) is collapsed. The folding chair (100) uses a type A construction, and forward movement of the top of the seat (2) relative to the mainframe (1) causes the back leg support (3) to move backwards relative to the mainframe (1).

A folding chair (100) comprises as main components a mainframe (1), a seat (2) and a back leg support (3). At least one of the main components is uniplanar and the others fit within a plane of the at least one main component when the chair (100) is collapsed. The folding chair (100) uses a type A construction, and forward movement of the top of the seat (2) relative to the mainframe (1) causes the back leg support (3) to move backwards relative to the mainframe (1).

A collapsible seat having a base and configured to alternatively take a use position and a storage position wherein the seat is collapsed. The seat includes first and second modules. The first module rotates in a vertical plane having longitudinal elements forming a deformable quadrilateral. The first module is articulated about an axis of rotation mounted on a fixed support and, in the use position, at least two longitudinal elements are in surface contact blocking rotation of the first module along a direction of rotation. The second module, mobile in rotation in the same vertical plane as the first module, has a support leg for surface contact with the ground in the use position and a connecting rod fixed between the first module and the support leg. In the use position, the connecting rod and the support leg are in surface contact blocking rotation of the second module.

A folding chair (100) comprises as main components a mainframe (1), a seat (2) and a back leg support (3). At least one of the main components is uniplanar and the others fit within a plane of the at least one main component when the chair (100) is collapsed. The folding chair (100) uses a type A construction, and forward movement of the top of the seat (2) relative to the mainframe (1) causes the back leg support (3) to move backwards relative to the mainframe (1).

A folding chair (100) comprises as main components a mainframe (1), a seat (2) and a back leg support (3). At least one of the main components is uniplanar and the others fit within a plane of the at least one main component when the chair (100) is collapsed. The folding chair (100) uses a type A construction, and forward movement of the top of the seat (2) relative to the mainframe (1) causes the back leg support (3) to move backwards relative to the mainframe (1).

An adjustable bench comprises a seat, a skirt extending from the seat, and a plurality of height adjustable leg assemblies coupled to the skirt. The seat is shaped to be selectively mated with the skirt to provide the bench with either a flat top surface or a sloped top surface.

An embodiment is a lightweight, packable seat that includes a seat platform, two shafts for support, straps with respective buckles, or similar, that secure the seat to a vertical object, such as a tree. The seat may be made of a lightweight flexible material that is held in a stiff orientation that extends outward from the tree through coupling to the upper strap at the proximal end of the seat and the shafts at a distal end of the seat, where the shafts project downward toward a proximal location at the tree at the lower strap. Use of the lower strap means that the shafts do not contact a ground surface, thereby providing stability. The shafts may be made of composites or aluminum, for example, such that the entire weight of the seat may weigh just a few ounces while exhibiting strengths and stability.

An embodiment is a lightweight, packable seat that includes a seat platform, two shafts for support, straps with respective buckles, or similar, that secure the seat to a vertical object, such as a tree. The seat may be made of a lightweight flexible material that is held in a stiff orientation that extends outward from the tree through coupling to the upper strap at the proximal end of the seat and the shafts at a distal end of the seat, where the shafts project downward toward a proximal location at the tree at the lower strap. Use of the lower strap means that the shafts do not contact a ground surface, thereby providing stability. The shafts may be made of composites or aluminum, for example, such that the entire weight of the seat may weigh just a few ounces while exhibiting strengths and stability.

A multifunctional folding chair that may be used by spectators at many types of events, including sporting events, camping, tailgating, and the like. The folding chair may include height adjustable legs that allow the seat to be used on uneven surfaces and to be adjustable for various users (e.g., for children and adults). The height adjustable legs may be capable of being secured substantially flush with the base of the seat when not needed (e.g., when used on bleachers).

The portable folding seat with cushion attachments disclosed herein may comprise a planar horizontal surface, two to four collapsible leg combinations, a series of locking mechanisms for support, and a series of ratcheting mechanisms for width adjustment. The combination is designed to fold into a compact form for carrying by an otherwise-encumbered user, such as a parent or guardian pushing a stroller or carrying a baby bag, and may unfold into a stand-alone chair or a stroller attachment. The combination made be made from extruded aluminum and ABS plastic, and may comprise stainless steel components for increased strength and light weight. A removable cushioned seat may be made available as part of the combination to improve user comfort, and the combination may further include a tote bag for ease of storage.