DRAIN STRUCTURE IN DOOR FRAME INSTALLING PART OF WATERPROOF FLOOR PAN

摘要

PROBLEM TO BE SOLVED: To cope with waste water from a lower frame part of a door by the same kind of waterproof floor pan even if a door frame is erected in an edge part adjacent at a right angle to the waterproof floor pan. SOLUTION: Groove parts 5 for respectively fitting a lower frame 3 of the door frame 2 and a lower part of a baseboard 4 are formed along the edge part adjacent at a right angle to the waterproof floor pan 1, and both groove parts 5 are communicated by a corner groove part 6. A drain part 7 is arranged in the corner groove part 6. A lower part of the door frame 2 is fitted in the groove part 5 of one edge part adjacent at a right angle to the waterproof floor pan 1, and the lower part of the baseboard 4 is fitted in the groove part 5 of the other edge part. A drain passage 8 for flowing in water from an upper surface part of the lower frame 3 and draining water to the drain part 7 is arranged in the lower part of the door frame 2.