| 摘要 |
A cross connection of a frame includes a connector (1) with a first part (2) and a second part (3) connected to a top and a bottom thereof. The connector and the first and second parts form a unit which is composed of a first half and a second half divided along a plane passing through the central axis of the unit. Each of the first part and the second part of each of the first and second halves having a notch (21) and a protrusion (22) respectively on two sides thereof. The protrusions of the first and second halves are being engaged with the notches of the first and second halves when the first and second halves are connected to each other. A bolt or a pin extends through a connection hole (11) defined through the connector of each of the first and second halves. Tubes (4,5,6,7) are connected to four directions of the unit. |
