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    • 3. 发明专利
    • HEALTH DEVICE
    • JPH01115372A
    • 1989-05-08
    • JP27369087
    • 1987-10-29
    • MATSUSHITA ELECTRIC IND CO LTD
    • SASAGAWA KAZUMASANISHIMURA TOSHIOFUJIWAKA KENSUKE
    • A63B21/22A63B22/06A63B23/04
    • PURPOSE: To obtain a flywheel suitable for outer circumferential braking as stable load by building up right and left cylindrical side plates, weight part pieces fixed on the side plates, a hub fixed at the center of the rotation of the side plates and an elastic belt with a T-shaped cross section to be fitted into the outer circumference of the side plates. CONSTITUTION: In a flywheel 9, a pair of side plates 22 is integrated by a screw 24 with four plate-shaped weight part pieces 23 inserted on the side of the outer circumference parts thereof and elastic belts 25 made of rubber are fitted into the outer circumference parts thereof. A hub shaft 26 is mounted at the center. The elastic belts 25 with a T-shaped cross section whose circumferential lengths are made shorter by about 10 percent than that of the side plates 22 are fitted with a tension closely into the outer circumferences of the side plates 22. The width W of a part protruding out into each elastic belt 25 is made large enough to let the part be fitted tight into a gap formed on the outer circumference of the side plate 22 and moreover, an inner circumferential end is brought into contact with an outer circumference side circular arc part of the weight part piece 23. An elastic belt contacting a roller of a load device is made shorter than the circumferential length of the side plate with a T-shaped cross section and is fitted into a gap formed by the right and left side plates thereby eliminating both circumferential and horizontal deviation thereof.