Public seating chair

A chair comprising:

• a frame including a pair of back mounting brackets and a pair of seat mounting brackets, said pair of back mounting brackets having upper and lower ends:
• a seat component mounted on and between said seat mounting brackets;
• and
• a back component mounted on and between said back mounting brackets wherein said back component includes an upper pair of laterally extending mounting pins and a lower pair of laterally extending mounting pins, said pair of back mounting brackets having surfaces at said upper end for receiving said pair of upper mounting pins in a substantial vertical load bearing relationship such that said back component is hung on said frame, and wherein said lower ends are provided with substantially vertical grooves open in a downward direction for receiving said lower pair of mounting pins to thereby prevent forward and backward movement of said back component.

A chair comprising:

• a frame including a pair of back mounting brackets and a pair of seat mounting brackets;
• a seat component mounted on and between said seat mounting brackets;
• and
• a back component mounted on and between said back mounting brackets wherein said back component includes an upper pair of laterally extending mounting pins and a lower pair of laterally extending mounting pins, said pair of back mounting brackets having surfaces for receiving said pair of upper mounting pins in a substantial vertical load bearing relationship such that said back component is hung on said frame, and
• wherein said seat mounting brackets each include an inwardly facing hinge pin;
• and further wherein a hinge element is provided for slidable mounting on each said hinge pin, each of said hinge elements having a pair of apertures for two point attachment to said seat component.

A chair comprising:

• a frame including a pair of back mounting brackets and a pair of seat mounting brackets;
• a seat component mounted on and between said seat mounting brackets;
• and
• a back component mounted on and between said back mounting brackets wherein said back component includes an upper pair of laterally extending mounting pins and a lower pair of laterally extending mounting pins, said pair of back mounting brackets having surfaces for receiving said pair of upper mounting pins in a substantial vertical load bearing relationship such that said back component is hung on said frame;
• wherein said seat component includes a counterweight for automatically moving said seat component from an in use to a non use position when vacated;
• and
• wherein said seat component comprises a substantially hollow plastic shell and said counterweight comprises particulate material confined to a predetermined portion of said shell.