A ready-to-assemble upholstered and non-upholstered chair consisting of factory assembled sub-assemblies reducing the number of overall parts and assembly hardware which decreases the packaged cubic measure allowing more units to be loaded into shipping containers and trailers, inventoried in warehouses and distribution centers and displayed in retail outlets thereby reducing transportation and handling costs, while simplifying and expediting the assembly process. The invention includes a seat box sub-assembly so constructed to allow a portion of the chair back leg sub-assembly to nest therein reducing the package profile and cubic measure, as well as a front leg sub-assembly. The front leg and back leg sub-assemblies are assembled utilizing a left and right tenoned side rail which inserts into mortises on the front and back leg assemblies. The leg sub-assemblies are secured with a metal bolt, threaded on each end, housed longitudinally within a routed channel running on the exterior face of each side rail. The bolt is secured by threading one end into the pre-installed knurled nut in the back leg sub-assembly and a hex socket T-nut and washer on the face of the front leg sub-assembly. The seat box sub-assembly is fitted over the front leg sub-assembly and the left and right side rails and secured on the underside with metal bolts. With the factory manufactured pre-assemblies resulting in fewer joints, the assembled chair is stronger eliminating potential racking. On upholstered chairs, the removable outer decorative back and seat cover are positioned over the chair back and chair seat and quickly Velcro's into place. Chair covers can be removed for cleaning or retailers can sell additional covers in a variety of materials and designs without needing to stock additional chairs. Once assembled, the invention offers the distinction that no assembly hardware is visible, giving the chair a factory made look.

A portable workstation which includes a hand truck, a toolbox which can be detached from the hand truck, and a tray which can be detached from an upper portion of the hand truck is disclosed. The hand truck has a mass and angular relation to the toolbox configured to stably oppose a torque created by a weight of the tray and a load supported by the tray if the toolbox is detached from the hand truck portion. The toolbox includes a top cover which is reversible to convert the toolbox into a seat.

A two-piece chair frame assembly comprises a back piece and a front piece joined together to form a chair frame. The back and front pieces are separate and discrete pieces until joined together. The back piece comprises a pair of rear legs, a backrest frame, and a back seat frame portion. The front piece comprises a pair of front legs and a front seat frame portion. The front and back seat frame portions join together to form a seat frame. The back and front pieces have different surface characteristics.

A portable workstation which includes a hand truck; a toolbox which can be detached from the hand truck, and a tray which can be detached from an upper portion of the hand truck. The hand truck has a mass and angular relation to the toolbox configured to stably oppose a torque created by a weight of the tray and a load supported by the tray if the toolbox is detached from the hand truck portion. The toolbox includes a top cover which is reversible to convert the toolbox into a seat.

Disclosed is a chair. The chair may include: a seat component, a first mounting part is provided at a lower portion of the seat component, and a second mounting part is provided at a rear portion of the seat component; a backrest component, a third mounting part is provided at a front side of a lower portion of the backrest component, a fourth mounting part is provided at a bottom side of the lower portion of the backrest component, and the backrest component is detachably mounted to the rear portion of the seat component through mutual cooperation of the second mounting part and the third mounting part; and a plurality of supporting leg components, a fifth mounting part is provided at an upper portion of the supporting leg component.

A two-piece chair frame assembly comprises a back piece and a front piece joined together to form a chair frame. The back and front pieces are separate and discrete pieces until joined together. The back piece comprises a pair of rear legs, a backrest frame, and a back seat frame portion. The front piece comprises a pair of front legs and a front seat frame portion. The front and back seat frame portions join together to form a seat frame. The back and front pieces have different surface characteristics.

A seat core comprising a unitary body (1) including a peripheral wall (4, 5, 7) provided with a plurality of recesses (2), each recess being provided with at least one aperture (8) adapted to receive securing means for securing a chair component within the recess.

At least one furniture upright vertical posts or legs inserted into at least one opening in at least one furniture horizontal span (shelf, top, frame) to retain the span horizontally. Each post diverges from its apex to its base. Each opening is bounded by interior facing walls that diverge downward to complement divergence of the post at an elevated region of the post. The retention of the span at the elevated region of the post arises because of the complementary divergence, which restricts relative movement of the span relative to the post to only allow lifting of the at least one span relative to the at least one post and prevent the span from moving sideways relative to the post at an elevation of the elevated region and prevent the span from being lowered further along the post past the elevated region.

At least one furniture upright vertical posts or legs inserted into at least one opening in at least one furniture horizontal span (shelf, top, frame) to retain the span horizontally. Each post diverges from its apex to its base. Each opening is bounded by interior facing walls that diverge downward to complement divergence of the post at an elevated region of the post. The retention of the span at the elevated region of the post arises because of the complementary divergence, which restricts relative movement of the span relative to the post to only allow lifting of the at least one span relative to the at least one post and prevent the span from moving sideways relative to the post at an elevation of the elevated region and prevent the span from being lowered further along the post past the elevated region.

The present invention provides a combined sofa and relates to the technical field of sofa assemblies. The combined sofa includes: an H-shaped middle frame, where two groups of sofa plate seats are fixedly disposed above two sides of the H-shaped middle frame through a bolt; an arc-shaped buckle structure is disposed on a front side edge of the sofa plate seat in a welding manner, and a front support foot is fixedly disposed in the arc-shaped buckle structure through a screw; and a middle back frame is fixedly disposed on rear sides of the two groups of sofa plate seats through a bolt. In the present invention, the H-shaped middle frame, the sofa plate seat, the front support foot, the middle back frame, a side back frame, and an arc-shaped handrail are assembled and connected through a bolt.