| 摘要 |
A directional retention device is provided that provides reliable retention of items as desired when force is applied in one direction but allows easy removal or detachment of the items from one another when force is applied in another direction. Specifically, the directional retention device includes a generally cylindrical button that has a peripheral slot. The device also includes a ring that defines an aperture sized to fit around the button with the ring in the peripheral slot. The button and ring are configured such that the ring is secured to the button when a predetermined force is applied to the ring in a first direction but is released from the button when the predetermined force is applied to the ring in a second direction opposing the first direction.
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