A sofa bed has a seat portion, a backrest portion and a hinge mechanism including a first section, a second section and a third section sequentially and pivotably connected. The first section is fixed to a side of the seat portion. The second section is fixed to a side of the backrest portion. A protruding portion is provided at a position where the first section is connected with the second section. Each of the armrest frames is formed with a slideway for receiving and guiding the protruding portion. An end of the third section opposite to the second section is pivotally connected to the armrest. The first section and the second section are be lockable to place the main body frame into a sofa configuration. The sofa bed can be easily switched between sofa and bed positions

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 spring module includes a spring and a spring bracket for accommodating the spring. The spring bracket may have a base, an end cover and a flexible connecting part connecting the base and the end cover. The spring may be fixed in the spring bracket with a predetermined initial pressure. The spring module may be used in a spring cushion for furniture.

An arrangement of spring elements for a cushion support is provided, having a plurality of spring elements, at which between a base and a support disc spring arms are arranged in each case, wherein the spring elements are arranged lying next to one another in such a manner that the support discs of the plurality of spring elements jointly define a support area and connecting elements are interconnected via the spring elements in such a manner that the spring elements are fixed in their position relative to one another, wherein the connecting elements are formed in one piece and are integrally molded onto the spring elements. The application furthermore includes a stack of spring element arrangements.

A high tension coil spring structure for a bed mattress includes spring bodies and exposed wiring portions which absorb an external load. Diameter-increasing portions (A) are formed on at least one of upper and/or lower end wiring portions (14, 14′) of body wiring portions (12), and provide spaces in which upper and/or lower exposure start wiring portions (16-5, 16-5′) move upward and downward. Rigid support ends (18) are formed on at least one of the body wiring portions (12) and upper and lower exposed wiring portions (16, 16′), and absorb a compressive load. The diameter-increasing portions and the rigid ends of the coil spring structure fundamentally prevent noise caused by friction between the exposed wiring portions and surrounding wiring portions when the exposed wiring portions are compressed and significantly increase the elasticity of the exposed wiring portions.

An arrangement of spring elements for a cushion support is provided, having a plurality of spring elements, at which between a base and a support disc spring arms are arranged in each case, wherein the spring elements are arranged lying next to one another in such a manner that the support discs of the plurality of spring elements jointly define a support area and connecting elements are interconnected via the spring elements in such a manner that the spring elements are fixed in their position relative to one another, wherein the connecting elements are formed in one piece and are integrally molded onto the spring elements. The application furthermore includes a stack of spring element arrangements.

The present disclosure provides a spring module for a spring cushion of furniture and a spring cushion having the same, the spring module may comprise a spring and a spring bracket for accommodating the conical spring, and the spring bracket may comprise a base, an end cover and a flexible connecting part connected therebetween, the spring may be fixed in the spring bracket with a predetermined initial pressure. The present disclosure further relates to a spring cushion having the spring module.

A high tension coil spring structure for a bed mattress includes spring bodies and exposed wiring portions which absorb an external load. Diameter-increasing portions (A) are formed on at least one of upper and/or lower end wiring portions (14, 14′) of body wiring portions (12), and provide spaces in which upper and/or lower exposure start wiring portions (16-5, 16-5′) move upward and downward. Rigid support ends (18) are formed on at least one of the body wiring portions (12) and upper and lower exposed wiring portions (16, 16′), and absorb a compressive load. The diameter-increasing portions and the rigid ends of the coil spring structure fundamentally prevent noise caused by friction between the exposed wiring portions and surrounding wiring portions when the exposed wiring portions are compressed and significantly increase the elasticity of the exposed wiring portions.

A spring module includes a spring and a spring bracket for accommodating the spring. The spring bracket may have a base, an end cover and a flexible connecting part connecting the base and the end cover. The spring may be fixed in the spring bracket with a predetermined initial pressure. The spring module may be used in a spring cushion for furniture.

An apparatus for assembling a bedding foundation having spring modules and a frame includes a support configured to receive the frame, a bridge disposed over the support, and staplers movably coupled to the bridge and positioned over the support, each stapler configured to staple a spring module to the frame. The apparatus also includes cameras coupled to the bridge and positioned over the support. Each stapler is operatively associated with one of the cameras and each camera is positioned to provide a field of view toward the support. The apparatus also includes a driver configured to move the frame relative to the support and a controller in communication with the cameras and the driver, the controller configured to receive vision guidance signals from one of the cameras to direct movement of the driver and of the stapler operatively associated with the one of the cameras.