| 摘要 |
A play yard has an oval-shaped upper frame. The upper frame is made of two u-shaped tubes and is supported by two vertical posts at either end of the play yard. The ends of each of the u-shaped tubes of the upper frame are connected to each post so as to be able to rotate about the posts. Located on each post is a slider which can slide up and down the post. Each slider is held in place by a button on each post. Diagonal support braces connect the sliders to each of the u-shaped tubes of the upper frame. When the play yard is in use, the upper frame is supported by the two vertical posts and the diagonal support braces located on either side of the play yard. The lower end of each post is connected to two opposing cantilevered legs at a hub. Each of the legs is substantially u-shaped and is pivotally connected at the hub in order to be able to rotate about the posts.
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