| 摘要 |
A liquid pressure nut (16) has a first load receiving member (17) being placed on a flange (13a) and a second load receiving member (18) being fixed to the first load receiving member (17) movably in the axial direction, wherein the second load receiving member (18) is coupled with a bolt (15) at the threaded hole (28). A pressure chamber (27) is provided between the first load receiving member (17) and the second load receiving member (18) and a seal ring (44) is fixed to the end part of the pressure chamber (27). The seal ring (44) has a first bend touching the first load receiving member (17), a second bend touching the second load receiving member (18) and a pressure receiving part continuous to the first and second bends, wherein a pressure being applied to the pressure receiving part is converted into a radial sealing force of the bends.
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