| 摘要 |
A golf shoe sole comprising ejecting and retracting spikes, the improvement wherein said sole contains a high pressure liquid pump assembly in communication with a plurality of housed cylinder assemblies each of which contain a slidable spike with seal, wherein extreme pressure being exerted upon contained liquid equals extreme firmness of ejected spikes. Said pump having shifting means of a four way rotatory spool valve for the control of ejection and retraction in either auto or manual mode, or said pump being one of the two, the former manual operating by way of lever reciprocating upon a piston. The latter auto, operating by way of a diaphragm located on the bottom soul of the back of the heel. Said diaphragm being subject to intense momentary pressure generated by the weight transference from the forward walking motion of the human wearer. An exclusively manual pump requiring only a two way ball, seat, and stem control valve. Liquid being drafted from a balloon type reservoir, then through a sequence of valves, is urged via conduit housing to act upon said sliceable spike assembly. Said spike assembly comprised of said socket, a sliceable spike with seal, a certain spring, which under compression collapses within it's self, a gasket and a threaded cylinder. Said cylinder has the absence of threads on it's upper portion, said upper portion has a smaller diameter than the root diameter of existing threads on it's lower portion. Thusly when the unit is assembled a space exists to accommodate liquid flow from ports positioned lower than the cylinder top. Liquid flow then travels over the top of inner cylinder walls and into said inner cylinder. Said cylinder has an outer domed convex bottom, identical in size and shape to that of conventional golf spikes, said outer bottom having two small blind bores enabling spike replacement with a conventional tool in the field. Said cylinder incorporates a gasket shoulder into it's shape, and has a small bushing bore in it's bottom to allow said spike to eject out for use.
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