| 摘要 |
<p>A bicycle frame tube connecting device includes a frame tube connector (20) having at least one tubular lug (30), which has each a plurality of circular recesses (32) spaced from one another around the respective inside surface, and at least one frame tube (40) respectively inserted in the at least one tubular lug and treated through the process of squeezing to form a plurality of circular projections respectively engaging the circular recesses on the respective tubular lug. A reinforcing tube (60) each may be respectively inserted in the at least one frame tube, and then treated through the process of squeezing to form a plurality of circular projections around the outside surface respectively fit the circular projections on the respective frame tube. <IMAGE></p> |
