| 摘要 |
<p>A collapsible container includes a cylindrical sidewall (12) extending between a top (14) and a bottom (16) of the container. The sidewall is formed of a flexible material which enables the container to be opened to an expanded configuration or closed to a collapsed configuration. A coil spring (36) biases the container to the open configuration. The coil spring has a top coil adjacent the top of the container and a bottom coil adjacent the bottom of the container. A durable bottom layer (44) is affixed to the bottom of the container by at least one clamp.</p> |
