| 摘要 |
PROBLEM TO BE SOLVED: To provide a bed which has a bottom consisting of synthetic resin material, saves a manufacturing cost and can improve air permeability and drainage performance of the bottom.SOLUTION: In the bed having a bottom 3 made of synthetic resin, a plurality of strip grooves 15 extending in a horizontal direction are formed on the upper surface of the bottom 3 with intervals in the cross direction, a support part 16 extending in a horizontal direction is formed between adjacent strip grooves 15, side openings 15a opening sideward are made in both ends of the strip groove 15, a bottom opening 15b penetrating the bottom 3 is made in the middle of the strip groove 15, and an inclined plane 15c sloping down to the bottom opening 15b is formed on the bottom surface of the strip groove 15. |
