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.

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.

An apparatus/method for assembling a modular ergonomic chair without using fasteners including a seat support structure that includes a plurality of recesses, wherein each recess includes a releasable latch mechanism (RLM); a vertical seat shaft; a pedestal; a first and second arm rest each of which include an arm rest connecting member, wherein the arm rest connecting member has a cavity to receive a RLM latch member of the seat support structure; and a back support, which includes a connecting member, wherein the connecting member also has a cavity to receive the latch member of another RLM of the seat support structure. The back support, first arm rest, and second arm rest are removably coupled to the seat support structure to permit easy assembly and interchanging of seat components. A reclining back support embodiment is also provided using a RLM latch spring with a corresponding connecting member in the seat support structure.

The present invention relates to seat systems, and more specifically to seat systems suitable for supporting users sitting in a cross-legged or kneeling position during activities such as meditation. Sitting closer to the ground, cross-legged, and/or kneeling enables the brain to easily enter a parasympathetic mode, providing users of the seat system a greater sense of calmness. The Multi-Angle Knee blocks (MAKs) offer a greater level of hip support for users.

The present invention relates to seat systems, and more specifically to seat systems suitable for supporting users sitting in a cross-legged or kneeling position during activities such as meditation. Sitting closer to the ground, cross-legged, and/or kneeling enables the brain to easily enter a parasympathetic mode, providing users of the seat system a greater sense of calmness. The Multi-Angle Knee blocks (MAKs) offer a greater level of hip support for users.

A back support device for supporting a lower back of a user may include an elastic strap, a first clasping element attached to a first end of the elastic strap, a second clasping element slidably disposed over the elastic strap and configured to releasably engage the first clasping element to form a continuous loop, and a buckle element secured to a second end of the elastic strap. The buckle element is slidably disposed on a medial portion of the elastic strap for adjusting a perimeter length of the continuous loop. The continuous loop is movable between a first position in which the continuous loop has a first perimeter length and a second position in which the continuous loop has a second perimeter length via elastic elongation. The first perimeter length is less than the second perimeter length.

A piece of furniture may include a structure having side walls and top walls adjoining the side walls. The piece of furniture may include a blade assembly to cover at least partially the structure, the blade assembly comprising: an envelope comprising a support portion and side panels, the support portion comprising a top layer, a bottom layer, and longitudinal sleeves extending between the top layer and the bottom from about a first one of the side panels to about a second one of the side panels, with the longitudinal sleeves being isolated from each other; and blades inserted in the longitudinal sleeves, wherein the side panels are mounted to the top layer, and wherein the side panels of the blade assembly are secured to the side walls of the structure with the side panels maintaining the bottom layer abutting the top walls.

An adjustable spinal support apparatus, system, and device is described. The adjustable spinal support allows for easy customization of a desired spinal contour. The support provides a structure for using non-deforming space adjusters, individually or in combination, to create various thicknesses along the length of the support. The support may be removably secured to a recliner, or a reference contour. A reference contour may provide convenience and portability in some applications. A padding (or cover) may be attached to the adjustable spinal support or attached to both the adjustable spinal support and a reference contour.

A lumbar support cushion can include a ridged section, right and left protruding side supports, top right and top left protrusions, and a top cutout located between the top right and top left protrusions, which can allow a person sitting against the cushion to experience increased support on the person's lower back. The features of the cushion may promote a healthy sitting posture, proper spine alignment, and may reduce or prevent pain in the lower back. Also disclosed is a method for configuring a support contour of a cushion.