| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that a conventional frame (spacer) for holding the upper reinforcing bar of a pressure board takes much time for installation due to the use of concrete nails and an oar anchor, furthermore its complicated structure causes its manufacturing cost to be inevitably increased. SOLUTION: The simple spacer for the pressure board uses only an L-shaped reinforcing bar in the main part, and a little attached hardware is welded to the reinforcing bar, enabling an annealed wire to bind a portion of the main body to the main reinforcement bar of the lower end reinforcing bars to attain solid installation. COPYRIGHT: (C)2008,JPO&INPIT
|
