| 摘要 |
A ram tip minimizes lateral slippage of an extension ram, while permitting reception of a range of differently sized work structures without contributing significantly to the axial length of the ram. The ram tip includes a base portion presenting a primary support surface oriented substantially perpendicular to an extension axis of the ram and facing outwardly of the ram. The support surface includes texturing providing frictional resistance against lateral movement of the work structure in contact therewith. Structure providing secondary safeguard against lateral disengagement of the ram tip from the work structure during operation includes bilaterally disposed support walls which include primary lateral support portions extending from the base codirectionally with the extension axis of the ram. In a preferred embodiment, the support walls include an internally stepped region presenting a pair of secondary support surfaces parallel with the primary support surface, and a pair of secondary lateral support portions extending codirectionally with the ram extension axis and separated a greater distance from one another than the primary lateral support portions. Such configuration permits fitted reception of work structure of smaller width between the primary lateral support portions for support against the primary support surface, and fitted reception of structure of greater width between the secondary lateral support portions for support on either side thereof against the secondary support surfaces.
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