| 摘要 |
A goal frame is assembled with multiple connecting devices 10, multiple tubes P1-P3, and multiple pairs of tubes P4-P7. Each connecting device includes a connector 10 and a plurality of fasteners 60. The connector has a plurality of tube segments 101-103. Each fastener is fitted onto one of the corresponding tube segments to force a plurality of walls 14 provided thereon to flex, and therefore to firmly hold a tube inserted therein. Each of the tube segments may have a plurality of flexible walls and a male screw thread 13. Each of the, preferably cylindrical, fasteners may have a corresponding female thread 34 which forces the walls to flex inwardly when screwed together. The walls of the tube segment may have an inclined surface so that the thickness gradually decreases from the male screw thread towards an opening 12 at the distal end. Additional connecters may be provided in association with any of the first P1 to fifth P5 tubes. |
