| 摘要 |
Disclosed is an umbrella rib assembly 100 of a telescopic construction formed of a main rib 110, a first auxiliary rid 120 and a second auxiliary rib 130 which are foldable, which comprises an inner side member 111, an intermediate member 112, a plurality of main ribs 110, a support member 122 rotatably engaged to the first auxiliary rib fixing member 150, a plurality of first auxiliary ribs 120, and a second auxiliary rib 130, the diameter D1 of the engaging part in which the inner side member 111 of the main rib 110 is rotatably engaged to the main rib fixing member 140 is larger than the diameter D2 of the engaging part in which the second auxiliary rib 130 is rotatably engaged to the second auxiliary rib fixing member 160, and then the second auxiliary rib fixing member 160 descends toward the fixed first auxiliary rib fixing member 150, the umbrella rib assembly 100 is unfolded, and when it ascends toward the fixed main rib fixing member 140, the umbrella rib assembly 100 is folded, so various is telescopic umbrellas 1 can be manufactured using the above umbrella assembly 100. |
