| 摘要 |
A jointing member for a frame system has three bores therein with the axis of the bores mutually perpendicular and with two of the bores lying in the same plane. The bores are so interconnected within the member that tightening securing means, such as a set screw, for an elongate member inserted in one of the bores pushes that elongate member sideways to cause it to bind against elongate members inserted into the other two bores to secure them therein also. Preferably the jointing member is of cuboid shape and the elongate members are of square or circular section. |
