| 摘要 |
PROBLEM TO BE SOLVED: To easily and quickly make a table main body in a using state and storing state, and easily adjust an angle thereof. SOLUTION: The tip 45b of a roughly U-shape spring member 45 is provided along a guide rail 37 provided in a table main body 35 so as to be movable in the longitudinal direction. The guide rail 37 is provided so as to be adjustable the longitudinal movement to the table main body 35 by a longitudinal movement adjusting mechanism 51. A longitudinal movement adjusting mechanism 11 is fixed on a back face side of the table main body 35 in a state where a guide rod 53 projects downward, and a guide groove 55 is formed along the longitudinal direction of a guide part 38 of the guide rail 37. The guide groove 55 is formed so as to penetrate in the vertical direction, and the guide rod 53 is inserted into the guide groove 55. A female screw part 57 is formed in the lower part of the guide rail 37, and a screw rod 59 is screwed with the female part 57. An operation knob 61 is formed at the tip of the screw rod 59.
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