| 摘要 |
PROBLEM TO BE SOLVED: To provide a coupling for transmitting pile rotation, which is engageable in a short period of time and applies a predetermined press-fitting load to a hollow pile. SOLUTION: This coupling for transmitting pile rotation is formed in a cap-like body attachable to and detachable from the top end of the hollow pile. A part to be locked engageable with and disengageable from a lock part formed at the top end of the hollow pile is formed on the cap-like body. When the lock part is engaged with the part to be locked, the rotation is transmitted from the cap-like body to the hollow pile. The upper joint is projected vertically from the cap-like body at the center of the outer upper surface of the circular top plate. The lower joint is projected from the axial extension of the upper joint at the center of the inner lower surface of the circular top plate. COPYRIGHT: (C)2009,JPO&INPIT
|
