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US 10,850,376 B2Granted
Tensioning device
AssigneeTohnichi Mfg. Co., Ltd.
InventorsKyoichi Komatsu, Hiroshi Tsuji, Osamu Tsuji, Seiji Ito
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AssigneeTohnichi Mfg. Co., Ltd.
InventorsKyoichi Komatsu, Hiroshi Tsuji, Osamu Tsuji, Seiji Ito
Estimating the term…
A tensioning device is configured to apply upward tension to a bolt-nut fastener including a bolt fitted with a fastened member H, and a nut to be fastened to a shaft of the bolt, which protrudes from the fastened member. A first male thread portion is formed on an outer circumferential surface of the nut. The tensioning device includes a connection member having a first female thread portion to be engaged with the first male thread portion, a tensioning mechanism for tensioning the nut via the connection member in a state where the first male thread portion is engaged with the first female thread portion, and a tension bearer which is disposed around an outer circumference of the connection member, and bears a reaction force applied from the fastened member H in tensioning performed by the tensioning mechanism.
A tensioning device which applies upward tension to a bolt-nut fastener including a bolt insertedly fitted with a fastened member, and a nut to be fastened to a shaft of the bolt, the shaft protruding from the fastened member, and the nut having a first male thread portion formed on an outer circumferential surface, the tensioning device comprising:
Dependencies are inferred from the claim text.