| 摘要 |
<p>The folding bicycle is provided with frame that has tubes, of which one has a sectioning point with two tube ends (A,B) lying against each other, which are connected with each other by a detachable coupling device. A coupling element (10) has a section (11) inserted into the former tube end, a coupling section (12) placed outside the tube end attaches to the section. Another coupling element (20) has another section (21) inserted into the latter tube end.</p> |
