| 摘要 |
<p>PURPOSE:To obtain superior assembly working properties and increase bonding strength by providing a projected section for one end of a resin hollow body and a recessed section for connection on the other end. CONSTITUTION:A projected section 2 for connection is projected from the outer surface side on one end of a resin hollow material 1, and its inner surface side forms a bonding surface 4, while a recessed section 3 for connection is formed on the outer surface side of the other end, and its inner surface side forms a bonded surface 5. A projected section 2 for connection and a recessed section 3 for connection are incorporated in the form of a bar for the hollow materials 1, totally four, and the peripheral edge of a bottom plate 7 is inserted into an inserting channel 8 and an accommodation box A with an opening at its upper side is assembled. In that case, as it is hollow, the restoring force at the projected section 2 for connection and the recessed section 3 for connection is large, and as the base section of the projected section 2 for connection is less wide in width than the end section, the width between the side surfaces of the recessed section 3 for connection is wider all through from the inner surface side to the outer surface side correspondingly, and is never dismantled even if a certain force is applied to the outer side to increase the bonding strength.</p> |
