| 摘要 |
There is provided a fastening device comprising a frame having a pair of spaced apart elongated portions that are substantially parallel to each other. The device further includes a slide bar that has a pair of passageways near opposite ends thereof. Each of the elongated portions is slidably moveable through respective passageways of the slide bar. Each of the elongated portions extends through a helical spring. The helical springs are both on one side of the slide bar. A pair of spring guide members are used to restrict respective helical springs to rotational movement along respective elongated portions and are operable to bias the helical springs towards the slide bar. Each of the guide members protrudes from respective elongated portions.
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