PROBLEM TO BE SOLVED: To easily install a slope adjusted to a sill, etc., by using an adjusting part and a universal adjusting part for a base part singly or by assembling them and fastening a universal fine adjusting part by male and female fitting type connecting part. ;SOLUTION: A fitting type connecting part 6 of a female part is provided on a bottom surface of a base part 2, a male part is provided on upper surfaces of an adjusting part 3 and a universal adjusting part 5, and the female part fitting type connecting part 6 is provided on the bottom surface. The male part fitting type connecting part 6 is provided only on an upper surface of a universal fine adjustment part 4. Some sheets of the adjusting parts 3 and the universal adjusting parts 5 are sequentially added to the base part 2 up to height of a sill. When required, the universal fine adjustment part 4 is added and tightened, it is cut with a saw, etc., and adjusted in length. Thereafter, it is fixed on a floor or the sill, etc., by a double-side tape 11, etc. Consequently, it is possible to adjust height easily by changing parts by anybody.;COPYRIGHT: (C)2000,JPO
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