| 摘要 |
PROBLEM TO BE SOLVED: To provide a tension device for easily detaching a form by shortening a tension excess length. SOLUTION: This tension device for tensing a tension member when anchoring a wedge with the tension member cramped therein, to a wedge receiver, is provided with a tension jack 100 for gripping and tensing the tension member, and an anchoring jack 200 disposed in series with the tension jack to push the wedge into the wedge receiving side. The tension jack 100 is provided with a cylinder 110, a ram 120 slid in the axial direction, a conical cone 170 for gripping the tension member, and a cone sleeve 160 substantially fitted to the outer shape of the cone. The anchoring jack 200 is provided with a press-in cylinder 210, a press-in ram 220 slid in the axial direction on the tip side of the press-in cylinder to push the wedge into the wedge receiver, and an inner sleeve 240 fixed to the inside of the press-in cylinder. The rear end of the inner sleeve 240 is positioned on the tip side rather than the rear end of the press-in cylinder. COPYRIGHT: (C)2004,JPO
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