| 摘要 |
A foldable base for a playpen has two sets of side rails (10, 102) (104, 106) respectively mounted on a bottom side of the playpen; two side joints (12, 122) respectively mounted to pivotally receive one end of the rails in a set of the side rails (10, 102) (104, 106); two sets of corner feet (18) respectively connected to one end of the rails (10, 102, 104, 106) of each set of the side rails (10, 102) (104, 106); two sets of connecting bars (14, 142) (144, 146) connected to the side rails (10, 104, 144, 146) near the feet (18); a hinge joint (16) mounted between the two connecting bars (14, 142) (144, 146) of each set of the connecting bars (14, 142) (144, 146); two sets of locking rods (30, 32) connected between the two sets of connecting rods (14, 142) (144, 146); and two inner joints (20) respectively connected to each set of locking rods (30, 32).
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