A furniture assembly system (10), comprising: a plurality of cross panels (100,100a), wherein each cross panel comprises a plurality of engaging apertures (102) of a right-angle cross shape arranged in one or more rows and one or more columns, with each engaging aperture being separated from an adjacent engaging aperture at a predetermined distance, at least one top panel (300) comprising a plurality of lock-down apertures, at least one support member (200,200a,200b), wherein the or each support member comprises a first interaction edge (201) and a second interaction edge (202) connectable to the cross panel, and a third interaction edge (203) connectable to the top panel, the first interaction edge and the second interaction edge being substantially perpendicular to the third interaction edge, and
wherein each of the first interaction edge and the second interaction edge comprises at least one hook joint (210) shaped and sized to be insertable into the engaging aperture of the cross panel and to extend beyond the cross panel forming a cantilevered projection, the third interaction edge comprises one or more protruding portions (220) shaped and sized to fit in the plurality of lock-down apertures (304) of the top panel.

A modular rail system for reclining furniture using an adjustable rail system that allows any furniture to expand modules or reduce modules and remain functional and operable. The modular adjustable rail system allows modular seating, or other pieces, to be connected or removed using an adjustable rail system offering multiple ways to add or subtract pieces of furniture. The adjustable rail system also allows for the spacing between each module to be adjusted.

A modular rail system for reclining furniture using an adjustable rail system that allows any furniture to expand modules or reduce modules and remain functional and operable. The modular adjustable rail system allows modular seating, or other pieces, to be connected or removed using an adjustable rail system offering multiple ways to add or subtract pieces of furniture. The adjustable rail system also allows for the spacing between each module to be adjusted.

A quick-release device is for securing a rod of any gas cylinder into the plate of any chair, item of furniture, or other device supported by a gas cylinder and activating the rod with a button thereon. This universal quick-release device includes a sleeve in in the seat plate, an adapter fit into the sleeve, the adapter including an upper portion and a lower portion with different inner and outer diameters. The sleeve is configured to receive the lower portion of the adapter in a press-fit engagement. The upper portion is configured to receive the rod of the gas cylinder in a removable engagement.

A quick-release device is for securing a rod of any gas cylinder into the plate of any chair, item of furniture, or other device supported by a gas cylinder and activating the rod with a button thereon. This universal quick-release device includes a sleeve in in the seat plate, an adapter fit into the sleeve, the adapter including an upper portion and a lower portion with different inner and outer diameters. The sleeve is configured to receive the lower portion of the adapter in a press-fit engagement. The upper portion is configured to receive the rod of the gas cylinder in a removable engagement.

A portable supportive seating system allows for a person to move a chair with them and then assemble it in remote locations and there receive support for their back and general posture support from it. A back support has an attachment that allows a rest or seat to be placed through it and holds the person that sits on it. A guard is attached to the bottom edge of the back support to protect it.

A portable supportive seating system allows for a person to move a chair with them and then assemble it in remote locations and there receive support for their back and general posture support from it. A back support has an attachment that allows a rest or seat to be placed through it and holds the person that sits on it. A guard is attached to the bottom edge of the back support to protect it.

A cellular furniture construction system that includes: a set of voxels, that form a lattice providing the shape and structure of the furniture construction, wherein regions of the furniture construction comprise distinct three-dimensional lattice arrangements of different types of voxels, providing distinct stress/strain properties to the regions; wherein each voxel comprises: a voxel type, defined by the stress and strain property of the voxel, and a discrete cellular three-dimensional structure, enabled to connect with other voxels along any one of the voxel interface surfaces. The system functions as a lightweight, modular, furniture construction system, wherein the system leverages arrangements of different voxel types to construct a furniture structure with desired stress/strain properties to regions of the structure.

A connecting structure and a seat. The connection structure comprises a mounting hole structure and a mounting structure correspondingly disposed on two main members to be connected; a step structure extends downwards and inwards on one side of the mounting hole structure, and two sides of the step structure are provided with limiting clamping points protruding in a direction parallel to an extending direction of the step structure; the mounting structure is configured to be a column structure, a bottom end of the column structure is provided with a shovel-shaped structure extending in one side of the column structure, and two sides of the shovel-shaped structure are provided with everted protrusions.

A connecting structure and a seat. The connection structure comprises a mounting hole structure and a mounting structure correspondingly disposed on two main members to be connected; a step structure extends downwards and inwards on one side of the mounting hole structure, and two sides of the step structure are provided with limiting clamping points protruding in a direction parallel to an extending direction of the step structure; the mounting structure is configured to be a column structure, a bottom end of the column structure is provided with a shovel-shaped structure extending in one side of the column structure, and two sides of the shovel-shaped structure are provided with everted protrusions.