| 摘要 |
The invention relates to an expansion fastener device that secures two interlocking members together. The device includes a parallelepiped receptacle having slits along opposite ends. The receptacle is inserted through the interlocking members and triple wedges are driven into the receptacle. The triple wedges includes a first wedge having tapers in the vertical direction and its insertion into receptacle causes only vertical expansion of the receptacle. A pair of horizontally tapered wedges are inserted into the receptacle alongside the first wedge and they cause only horizontal expansion of the receptacle. Utilization of the invention reduces stress points as created by conventional rivets.
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