To properly set an angle of table top plate of a table and to prevent an appearance from being deteriorated and a parallel arrangeable number of furniture in an effective space from being reduced by table supporting members protruding from the furniture.
The distal end parts of slide rails 80 collide with third angle regulating surfaces in a backrest member 12 side more than guide wall parts 66 and the rotary shafts of pivoting members when turning the table top plate 21 from a spring up state to a using state. Further, when the distal end parts of the slide rail 80 collide with the third angle surfaces arranged in base members 30, second planar surface parts of turning plate parts collide with second angle regulating surfaces arrange in a base members 30 at the same time. The table top plate 21 can be always set in a proper angle by changing the base members 30 according to an angle of the backrest plate 12 because the second angle regulating surfaces and the third angle regulating surfaces are formed in the base members 30.
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Suzuki Mitsuyoshi
Yasushi Matsunuma