Modular self-locking chair with interlocking joint system

A method of assembling the self-locking chair, comprising the steps of:

• coupling the first leg assembly to the second leg assembly, wherein the indentation on the intermediate underside section of the first leg assembly aligns with and is pushed downward into the indentation on the intermediate topside portion of the second leg assembly, thereby securing the two leg assemblies together;
• and
• securing the backrest onto the first and second vertical frames, wherein the first and second latch on the back of the backrest aligns with and secures on the first and second flexible joint attached to the top of the first and second vertical frames, thereby providing a secure attachment of the backrest to the two secured leg assemblies;
• and
• securing the seat base onto the first and second horizontal frames, wherein the first and second half lap joint attached to the proximal underside section of the seat base are aligned and secured to the first and second frame joint on the proximal end of the first and second horizontal frames,
• wherein the bow shaped joint attached to the distal underside section of the seat base is clipped to the third and fourth frame joints attached to the distal side of horizontal frames.

The method of disassembling the self-locking chair, comprising the steps of:

• releasing the seat base from the horizontal frames, wherein the bow-shaped joint attached to the distal underside section of the seat base is disengaged to the third and fourth joint frames attached to the distal end of the first and second horizontal frames and that are near the intersection of the first and second horizontal frames,
• wherein the first and second half-lap joints attached to the proximal underside section of the seat base is disengaged with the first and second joint frames attached to the proximal ends first and second horizontal frames providing the removal the seat base from the two secured leg assemblies;
• and
• releasing the backrest from the first and second vertical frames, wherein the first and second latches on the back of the backrest are disengaged from the first and second flexible joint attached on the top of the first and second vertical frames providing the removal of the backrest from the “h-shaped frames”;
• and
• decoupling the first and second ‘h-shaped’ frames from one another, wherein the first leg assembly is hoisted in an upward manner providing the removal of the first leg assembly from the second “h-shaped frame.