| 摘要 |
A positioning assembly includes a connecting rod, a pivot pin, and a hook member. The connecting rod has a U-shaped end with opposing first and second arm portions which cooperatively define a gap therebetween and which are respectively formed with first and second through-holes. The first arm portion is formed with a first flange that projects outwardly and that converges from a periphery of the first through-hole. The second arm portion is formed with a second flange that projects inwardly from a periphery of the second through-hole. The first and second flanges confine first and second openings, respectively. The pivot pin extends into the first and second through-holes, and has a diameter greater than dimensions of the first and second openings so as to be limited in the first and second through-holes. The hook member has a pivot end that is disposed in the gap and that is rotatably sleeved on the pivot pin.
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