Patent ID: 7552487
Filing Date: 2009-06-30
Classification: A47D

Abstract:
1. A bottom bracket of a playpen, comprising a support seat, and a rotation seat, wherein: the support seat includes two covers combined with each other and each having a lower portion formed with a through hole, a slide slidably mounted between the two covers, a locking rod extended through the slide and movable in a transverse manner between a first position where the locking rod is protruded outward from the through hole of a respective one of the two covers and a second position where the locking rod is retracted into the through hole of the respective cover, a drive rod movably mounted on the slide in an oblique manner and connected to the locking rod to move the locking rod in a transverse manner by movement of the slide; the rotation seat includes two pivot members each pivotally mounted on the covers of the support seat and each having a first side wall provided with a catch plate that is movable between a first position where the catch plate is stopped by the locking rod of the support seat when the locking rod is protruded outward from the through hole of the respective cover to stop pivot of the two pivot members and a second position where the catch plate is released from the locking rod of the support seat when the locking rod is retracted into the through hole of the respective cover so that the catch plates of the two pivot members are movable freely, and the two pivot members are pivotable freely; the drive rod is movable in the two covers; the slide of the support seat has a side formed with an elongated oblique guide slot mounted on the drive rod so that the drive rod is movable in the elongated oblique guide slot of the slide in an oblique manner by movement of the slide; the locking rod of the support seat is perpendicular to the drive rod; the locking rod of the support seat has a mediate portion formed with a passage to allow passage of the drive rod so that the drive rod is connected to the locking rod by the passage, and the locking rod is movable with the drive rod; the locking rod is extended through the through hole of the respective cover so that the locking rod is movable with the drive rod in a transverse manner by limit of the through hole of the respective cover and is movable to protrude outward from or retract into the through hole of the respective cover.