Patent ID: 8881348
Filing Date: 2014-11-11
Classification: F16B,F16G,Y10T

Abstract:
1. A tension tool comprising: a shaft body; a cylindrical body; and a nut, wherein a first locking portion that locks at a first region is formed at one end portion of the shaft body, and a screw portion is formed from the other end portion of the same toward the first locking portion, wherein the cylindrical body is fitted onto an outer periphery of the screw portion, and a second locking portion that locks at a second region is formed on an outer surface of the cylindrical body, wherein the screw portion has the nut attached thereto in a state that the cylindrical body is fitted on the outer periphery of the shaft body, wherein the first region and the second region, which are apart from each other, are moved closer to each other by fastening the nut, wherein the cylindrical body is fitted on the outer periphery of the screw portion in a slidably freely fitted state to form a gap therebetween, wherein a virtual line connecting a first receiving portion that is in contact with the first region in the first locking portion with a second receiving portion that is in contact with the second region in the second locking portion and an axial line formed by a shaft center of the shaft body are inclined, wherein a width of the gap is a width that enables the shaft body to incline in the cylindrical body and also enables an inner surface corner portion of the cylindrical body near the second locking portion to be hooked on a screw thread of the shaft body in a state that the first locking portion is slid and pulled toward the second locking portion and the cylindrical body is inclined, wherein an engagement portion relative to a screw thread of the screw portion is formed on a second locking portion side inner surface of the nut side end portion in the cylindrical body, and the nut side of the engagement portion is protruded toward the screw thread side, the cylindrical body inner side of the engagement portion is the same surface as the cylindrical body inner surface, and the engagement portion in the cylindrical body is formed at a slant with respect to the shaft portion.