Patent ID: 9289070
Filing Date: 2016-03-22
CPC Classification: A47C,B60N

Claim Text:
1. A chair comprising a back and a seat, said back including a back support having first and opposite sides and standing upwardly from said seat and a lumbar portion against which a user's back is positioned, said lumbar portion being connected to said back support by first and second attachments that are spaced from and located above one another so as to lie on a pivot axis that is established between said first and second attachments and that runs in the same direction as the direction its which the back support stands upwardly from the chair seat, said lumbar portion having a top, a bottom and a curved section lying between said top and said bottom and being spaced in front of said back support by a gap, said lumbar portion rotating back and forth around said pivot axis and tilting towards the first side of said back support or towards the opposite side thereof so that the curved section of said lumbar portion moves into said gap when the user shifts the position of his back against said lumbar portion.