| 摘要 |
PROBLEM TO BE SOLVED: To provide a reinforcing bar spacer for reinforced concrete having a minimum number of types and an economical shape, and hardly being crushed or slipping out by the dead weight of a reinforcing bar. SOLUTION: This spacer is formed by sandwiching the reinforcing bar 4 by a long washer 3 by using a bolt 1 and a nut 2. A cap 5 manufactured of a resilient substance strong against oxidation such as plastic and synthetic rubber is installed on the bolt 1. The oxidation of the spacer is prevented by performing rust preventive processing painting to the spacer. A cover thickness becomes free by this method. Thus, the kind of the spacer is reduced. Since the strength of this spacer is distinguishably high and the shape is also simple, a material can be reduced in volume. Thus, the manufacturing cost of the spacer is reduced. The filling and the passing of a coarse aggregate are facilitated. COPYRIGHT: (C)2008,JPO&INPIT
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