| 摘要 |
PURPOSE: A forward-backward moving table for a chair with a three stage foldable long hinge is provided to adjust distance smoothly by sliding the table forward and backward and remove an obstacle by rotating the table toward under arms at sides of the chair after use. CONSTITUTION: In a chair in which a three stage foldable hinge comprising a fixed plate(1), a vertical plate(2), a connecting plate(3), a rotary plate(4) and a hinge(5) is attached to an arm(20) by flathead screws(6) penetrating a plurality of screw holes(7) so as to rotate a table(30), the table is constructed in a manner that the three stage foldable hinge is composed of a three stage foldable, long hinge(10), the lower part of the rotary plate(4) of the long hinge(10) is welded to the lower face of a fixed portion(110) of a slider(100) moving the table(30) forward and backward, and the inside lower face of the table(30) is attached to the top face of a cover portion(120) moved forward and backward by a reciprocating portion to thus move the table(30) forward and backward.
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