| 摘要 |
PURPOSE: To reduce the stepped size of a wash place and an entrance by forming a pitch towards a joint in a design surface and forming a pitch towards the drainage ditch of a peripheral section in the joint. CONSTITUTION: A wash place 5 consists of a plurality of design surfaces 10..., divided by a plurality of mutually parallel joints 9.... A drainage ditch 11 is formed to the peripheral section of the wash place 5. Pitches 12... are formed towards the joints 9... in the design surface 10..., pitches 13 towards the drainage ditch 11 even in the joints 9..., and pitches 14 towards the drainage ditch 11 even on the side facing the drainage ditch 11 of the design surfaces 10.... The pitches 12 are formed in downward gradients in the opposite directions from the centers of the design surfaces 10..., towards the joints 9... and the pitches 13 of the joints 9... are also formed in downward gradients in the opposite directions towards the drainage ditch 11 from the central sections of the horizontal direction. Accordingly, hot and cold water used in the wash place 5 flows on the design surfaces 10... and the joints 9..., and is introduced into the drainage ditch 11. The pitches 12 are composed of two surfaces at small pitches, and the height of the peripheral section of the wash place can be kept constant, and the stepped size of the wash place and an entrance can be reduced. |
