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    • 2. 发明专利
    • MEMBER MADE OF RUBBER FOR LOAD DETECTION
    • JPH11101695A
    • 1999-04-13
    • JP27966497
    • 1997-09-25
    • FUJITA CORPHAYAKAWA RUBBER
    • KAGAWA KAZUONOMA TATSUYAYOSHITOMI EITAROSUGI HIDEHIRONAKAMU SADAYOSHIKADOTA FUMIOTANAKA HIDEO
    • E21D20/00G01L1/04
    • PROBLEM TO BE SOLVED: To provide a member made of rubber for load detection which is suitable to be used for judging the risk of a lock bolt and an anchor bolt. SOLUTION: This member 10 made of rubber for load detection is constituted of a plate-like member 12, a groove 14 formed in the plate-like member 12, and plates 16 made of a metal attached respectively to both ends of the plate- like member 12 in the thickness direction. The rubber used for the member has a Young's modulus from 1 Mpa to 200 Mpa, a surface hardness of 35-95, and a compressive permanent strain of 50 or lower, and a Poisson ratio of 0.4-0.5. The groove 14 is constituted of a bottom face 1402 and side faces 1404 stood uprightly from both sides of the bottom face 1402 on the opposite to each other. The bottom face 1402 is formed while being extended in the radius direction of the plate-like member 12 and in the direction at a right angle to the thickness direction of the plate-like member 12 and the side face 1404 are formed while being extended in the thickness direction of the plate-like member 12. The two side faces 1404 are so designed as to be contracted to a prescribed interval when the load affecting the plate-like member 12 in the thickness direction is a prescribed value or higher.