A foldable plastic-steel chair comprises a seat board assembly, a backrest, and a metal supporting frame. The seat board assembly and the backrest are connected to the metal supporting frame, and the seat board assembly comprises a seat board. The seat board comprises a surface plate and a surrounding edge connected to a periphery of the surface plate and extending downward, and the seat board is a vacuum-formed plastic board. The seat board assembly further comprises a metal frame abutting a periphery of seat board, and a bottom end of the metal frame is bent outward to form a hook. A lower end portion of the surrounding edge of the seat board is disposed in the hook, and a portion of the metal frame abuts an inner side of the surrounding edge. The hook is fixedly clamped to a lower edge of the surrounding edge.

A collapsible chair comprises a pair of intermediate frame members, seat support poles, leg poles, and a pliable seat. The intermediate frame members can be oriented in a crossed manner or can be oriented, via a pivot connection between the two, such that they are parallel. Each intermediate frame member comprises pole sockets. The seat support poles are removably securable to the intermediate frame members via the pole sockets. The leg poles are also removably securable to the intermediate frame members via the pole sockets. The pliable seat is removably attachable to all four of the seat support poles in a manner such that the seat support poles can support the seat, with the leg poles supporting the intermediate frame members, and the intermediate frame members supporting the seat support poles.

A collapsible chair comprises a pair of intermediate frame members, seat support poles, leg poles, and a pliable seat. The intermediate frame members can be oriented in a crossed manner or can be oriented, via a pivot connection between the two, such that they are parallel. Each intermediate frame member comprises pole sockets. The seat support poles are removably securable to the intermediate frame members via the pole sockets. The leg poles are also removably securable to the intermediate frame members via the pole sockets. The pliable seat is removably attachable to all four of the seat support poles in a manner such that the seat support poles can support the seat, with the leg poles supporting the intermediate frame members, and the intermediate frame members supporting the seat support poles.

The assembly chair includes a pair of frames, a plurality of coupling rods, a plurality of pairs of depressed portions, at least one support member, and a sheet. The sheet is removably installed between the support member and the coupling rod. At least at one end portion of the sheet, the sheet includes a plurality of inserted portions along a width direction of the sheet. A flat plate is passed through at least one of the inserted portions. The support member with a flat intermediate portion is passed through another one of the inserted portions. The sheet is wound around outer peripheries of the inserted portion through which the plate is passed and the inserted portion through which the support member is passed to adjust a length of the sheet. In such state, the support member has both end portions fitted to the depressed portions on the frames.

The assembly chair includes a pair of frames, a plurality of coupling rods, a plurality of pairs of depressed portions, at least one support member, and a sheet. The sheet is removably installed between the support member and the coupling rod. At least at one end portion of the sheet, the sheet includes a plurality of inserted portions along a width direction of the sheet. A flat plate is passed through at least one of the inserted portions. The support member with a flat intermediate portion is passed through another one of the inserted portions. The sheet is wound around outer peripheries of the inserted portion through which the plate is passed and the inserted portion through which the support member is passed to adjust a length of the sheet. In such state, the support member has both end portions fitted to the depressed portions on the frames.

A collapsible chair comprises a pair of intermediate frame members, seat support poles, leg poles, and a pliable seat. The intermediate frame members can be oriented in a crossed manner or can be oriented, via a pivot connection between the two, such that they are parallel. Each intermediate frame member comprises pole sockets. The seat support poles are removably securable to the intermediate frame members via the pole sockets. The leg poles are also removably securable to the intermediate frame members via the pole sockets. The pliable seat is removably attachable to all four of the seat support poles in a manner such that the seat support poles can support the seat, with the leg poles supporting the intermediate frame members, and the intermediate frame members supporting the seat support poles.

A collapsible chair comprises a pair of intermediate frame members, seat support poles, leg poles, and a pliable seat. The intermediate frame members can be oriented in a crossed manner or can be oriented, via a pivot connection between the two, such that they are parallel. Each intermediate frame member comprises pole sockets. The seat support poles are removably securable to the intermediate frame members via the pole sockets. The leg poles are also removably securable to the intermediate frame members via the pole sockets. The pliable seat is removably attachable to all four of the seat support poles in a manner such that the seat support poles can support the seat, with the leg poles supporting the intermediate frame members, and the intermediate frame members supporting the seat support poles.

A portable lay-down blind including a gurney-style seat comprises a framework supporting a covering which forms an enclosure sized for accommodating an occupant, the covering having a top opening providing access to the enclosure, the framework including a seat frame having lateral support arms extending from the head end to the toe end of the framework, the gurney-style seat suspended from the lateral support arms and capable of supporting the weight of the occupant in a position elevated above a support surface; one embodiment the seat frame including a transversely extending bottom brace for reinforcing the lateral support arms.

A portable lay-down blind including a gurney-style seat comprises a framework supporting a covering which forms an enclosure sized for accommodating an occupant, the covering having a top opening providing access to the enclosure, the framework including a seat frame having lateral support arms extending from the head end to the toe end of the framework, the gurney-style seat suspended from the lateral support arms and capable of supporting the weight of the occupant in a position elevated above a support surface; one embodiment the seat frame including a transversely extending bottom brace for reinforcing the lateral support arms.

A folding chair includes two standing posts, two diagonal bracing mechanisms, and a linkage mechanism, where the linkage mechanism includes two linkage posts that are crossed and hinged with each other. The diagonal bracing mechanisms each include two diagonal braces, two under-frame posts, a first connector, and a second connector. The upper ends of the two diagonal braces and an upper end of one linkage post are hinged with the first connector, and the lower ends of the two diagonal braces are respectively hinged with the first ends of the two under-frame posts. The second ends of the two under-frame posts and the lower end of the linkage post are hinged with the second connector. The two standing posts are respectively connected to two first connectors and respectively limit the positions of the two first connectors.