| 摘要 |
A foldable umbrella frame includes a plurality of ribs (3) eachhaving a foldable portion that includes twopivoted segments (331,332) which extend along a centerline to terminate at two grip ends (333,334), and a reinforcing member (5) which has two gripped ends (515,516,525,526) firmly gripped in the grip ends (333,334) by virtue of malleating the grip ends (333,334), and an intermediate portion (517,527) that extends along the centerline and that has first and second surfaces (513,523,511,521) opposite to each other in the upright direction. The first surface (513,523) has a ridge region (514,524) which extends in the upright direction and along the centerline and which is formed by pressing the second surface (511,521) towards the first surface (513,523) and along the centerline so as to strengthen the structure of the ribs (3).
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