| 摘要 |
A play yard has a pair of members that are spaced apart and arranged in a longitudinal direction and has a central coupling member located in a central portion in the longitudinal direction and pivotally coupled to the pair of members. One lock mechanism operates so that one of the members is not allowed to pivot with respect to the central coupling member. Another lock mechanism operates so that the other member is not allowed to pivot with respect to the central coupling member. A lock operation mechanism simultaneously unlocks both lock mechanisms to maintain them in the unlocked state. |
