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REINFORCING BAR STANDARD DISTINCTION DEVICE AND REINFORCING BAR STANDARD INFORMATION PREPARATION DEVICE
REINFORCING BAR STANDARD DISTINCTION DEVICE AND REINFORCING BAR STANDARD INFORMATION PREPARATION DEVICE
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机译：加强钢筋标准区分装置和加强钢筋标准信息准备装置
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摘要
PROBLEM TO BE SOLVED: To determine a standard of a reinforcing bar with high precision in a case of a knob of the reinforcing bar is a screw shape.;SOLUTION: In a screw knob reinforcing bar, a knob is a shape of a screw, and chamfering which is parallel and symmetric for an axis of the reinforcing bar is given. The two surfaces parallel to the axis is called rib. The minimum of the smallest diameter when the screw knob reinforcing bar is looked from a side is a diameter B with a state that ribs are seen in the opposite sides. On the other hand, the maximum of the smallest diameter is a minimum diameter C with a state that does not contain a height H of the knob and knobs are seen in the opposite sides. In contrast, the minimum of the biggest diameter is the diameter B with the state that the ribs are seen in the opposite sides. On the other hand, the maximum of the biggest diameter is a diameter length C+H that the minimum diameter C with the state that the knobs are seen in the opposite sides is added the height H of the knob. According to the above, the smallest diameter range B to C is smaller than the biggest diameter range B to C+H with only the height H of the knob. Therefore, because a diameter range of each standard becomes small when the reinforcing bar standard information is prepared by using not the maximum diameter but the minimum diameter of the reinforcing bar, the diameter range of neighboring standard is not duplicated too much, and the precision of the standard determination improves.;COPYRIGHT: (C)2014,JPO&INPIT
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