A method of manufacturing suspension seating includes providing a blank to be used in a suspension member. The blank has a non-visible marker. The method also includes illuminating the non-visible marker with an excitation source. The non-visible marker becomes detectable when illuminated by the excitation source. The method further includes sensing the non-visible marker with a sensor. The sensor is configured to detect the non-visible marker when illuminated by the excitation source. The method also includes determining, by a controller, a characteristic of the blank using the non-visible marker. The controller is in communication with the sensor and configured to receive information related to the non-visible marker from the sensor. The method further includes adjusting the blank to achieve the desired characteristic.

A system and method for forming a foundation truss for a box spring or mattress foundation frame includes a first truss rail assembly station having a series of block feeders, a top rail hopper and a filler strip hopper that received stacks of truss components such as blocks, top rails and filler strips and feed such truss components into stacked registration. The stacked truss components are moved into engagement with a series of staplers that secure the filler strips, top rails and blocks together to form first truss rail portions, which are then fed to a second truss rail assembly station where a bottom rail is automatically applied thereto.

A system and method for forming a foundation truss for a box spring or mattress foundation frame includes a first truss rail assembly station having a series of block feeders, a top rail hopper and a filler strip hopper that received stacks of truss components such as blocks, top rails and filler strips and feed such truss components into stacked registration. The stacked truss components are moved into engagement with a series of staplers that secure the filler strips, top rails and blocks together to form first truss rail portions, which are then fed to a second truss rail assembly station where a bottom rail is automatically applied thereto.

In order to manufacture an innerspring unit comprising pocketed springs and having an increased stability at its edge regions, in a first step, an innerspring main body comprising a plurality of first strings of pocketed springs is provided. In a subsequent second step, at least one second string of pocketed springs is attached to a lateral surface of the innerspring main body, so that the at least one second string of pocketed springs extends in a longitudinal direction of the innerspring main body. The springs of the at least one second string of pocketed springs have a spring characteristic or a spring geometry different from the springs of the plurality of first strings of the innerspring main body. The at least one second string of pocketed springs forms together with the innerspring main body the innerspring unit.

In order to manufacture an innerspring unit comprising pocketed springs and having an increased stability at its edge regions, in a first step, an innerspring main body comprising a plurality of first strings of pocketed springs is provided. In a subsequent second step, at least one second string of pocketed springs is attached to a lateral surface of the innerspring main body, so that the at least one second string of pocketed springs extends in a longitudinal direction of the innerspring main body. The springs of the at least one second string of pocketed springs have a spring characteristic or a spring geometry different from the springs of the plurality of first strings of the innerspring main body. The at least one second string of pocketed springs forms together with the innerspring main body the innerspring unit.

A cover fastening clip includes a locking section that locks with an end member to be locked that is provided on the edge of a cover, and a hook that engages with a wire disposed in a groove of a cushion material. The hook is provided with an extended section that extends down from the locking section and a claw-shaped section, and the locking section is provided with a guide piece. The guide piece extends down along the extended section of the hook, bends at a midway bending section, and extends toward the distal end of the claw-shaped section. A wire insertion opening that has a prescribed gap and into which the wire is inserted is formed by the distal end of the guide piece reaching a location that faces the distal end of the claw-shaped section.

A cover fastening clip includes a locking section that locks with an end member to be locked that is provided on the edge of a cover, and a hook that engages with a wire disposed in a groove of a cushion material. The hook is provided with an extended section that extends down from the locking section and a claw-shaped section, and the locking section is provided with a guide piece. The guide piece extends down along the extended section of the hook, bends at a midway bending section, and extends toward the distal end of the claw-shaped section. A wire insertion opening that has a prescribed gap and into which the wire is inserted is formed by the distal end of the guide piece reaching a location that faces the distal end of the claw-shaped section.

In order to manufacture an innerspring unit comprising pocketed springs and having an increased stability at its edge regions, in a first step, an innerspring main body comprising a plurality of first strings of pocketed springs is provided. In a subsequent second step, at least one second string of pocketed springs is attached to a lateral surface of the innerspring main body, so that the at least one second string of pocketed springs extends in a longitudinal direction of the innerspring main body. The springs of the at least one second string of pocketed springs have a spring characteristic or a spring geometry different from the springs of the plurality of first strings of the innerspring main body. The at least one second string of pocketed springs forms together with the innerspring main body the innerspring unit.

In order to manufacture an innerspring unit comprising pocketed springs and having an increased stability at its edge regions, in a first step, an innerspring main body comprising a plurality of first strings of pocketed springs is provided. In a subsequent second step, at least one second string of pocketed springs is attached to a lateral surface of the innerspring main body, so that the at least one second string of pocketed springs extends in a longitudinal direction of the innerspring main body. The springs of the at least one second string of pocketed springs have a spring characteristic or a spring geometry different from the springs of the plurality of first strings of the innerspring main body. The at least one second string of pocketed springs forms together with the innerspring main body the innerspring unit.

A recessed seam structure for a cover (3) that improves workability when forming a recessed seam (A) and allows frequent attachment and detachment at the recessed seam (A) is provided. In a seat (1) having the recessed seam (A) formed by pulling part of the cover (3) toward a side of a cushion material (2), the recessed seam (A) is provided with an opening and closing fastener (30) configured to couple the cover (3) and the cushion material (2), and the opening and closing fastener (30) includes a first fastener half (31) fixed to a back face of the cover (3) and a second fastener half (32) fixed to the cushion material (2). In such a seat (1), the recessed seam (A) can be formed easily and reliably on the seat (1) by aligning an end of the first fastener half (31) in a longitudinal direction and an end of the second fastener half (32) in the longitudinal direction of the opening and closing fastener (30) and simply sliding a slider (33).