| 摘要 |
A hand tool having a tool head and a handle is provided with a self-locking wedge embedded within said handle to effect a secure interconnection between the wedge, the handle and the tool head. The self-locking wedge is a single multielement member of high shear strength having a tapered central body and a plurality of integral wedge-shaped side arms intersecting the central body and projecting outwardly from opposite sides thereof. At least one of the side arms extends from the central body for a greater distance on one side thereof than on the opposite side thereof. Locking shoulders projecting from the central body are disposed inwardly of the side arms and cooperate with the side arms to interlockably retain the resilient grained structure of the handle and restrict removal of the wedge therefrom.
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