FOOTWEAR WITH RETRACTABLE SPIKES

摘要

An apparatus for selectively extending and retracting spikes includes spike actuating assemblies mounted to, and cooperating between, a first plate and a first slider frame, and a second plate and a second slider frame, pivotally mounted to the first plate and first slider frame respectively. Each spike actuating assembly contains a spike. The first slider frame is translatable to actuate the spike actuating assemblies to thereby extend and retract the spikes from the spike actuating assemblies. A cyclically alternating positioner is mounted on the first plate for moving the first and second slider frames relative to the first and second plates. The positioner has only a single actuating button adjacent the heel. Depressing the actuating button a first time causes the positioner to move the slider frames to extend the spikes. Depressing the actuating button a second time causes the positioner to move the slider frames to retract the spikes.

主权项

1. An apparatus for selectively extending spikes from the bottom of a footwear article, the footwear article having a sole having a longitudinal direction and a plurality of spike apertures, the apparatus comprising:
a plurality of spike assemblies, each of said plurality of spike assemblies having a spike guide and a selectively translatable spike slidably supported in said guide, wherein each said spike has a cam follower coupled thereto and extending from said spike for translation with said spike, said spike being locatable within one of the spike apertures in the footwear article; an elongate member mountable into the footwear article so as to be translatable substantially parallel to the longitudinal direction of the footwear article, said elongate member cooperating with said plurality of spike assemblies and moveable between first and second positions relative thereto so as to extend said spikes from said plurality of spike assemblies when in said first position and to retract said spikes within said plurality of spike assemblies when in said second position; a cyclically alternating positioner for moving said elongate member between said first and second positions, said positioner having an actuating button, wherein depressing said actuating button a first time causes said positioner to move said elongate member to said first position and wherein depressing said actuating button a second time causes said positioner to move said elongate member to said second position, further comprising, for each spike assembly of said plurality of spike assemblies, a carriage coupled to said elongate member for translation with said elongate member between said first and second positions for transmitting said translation of said elongate member to said spike assemblies wherein each said carriage has an inclined cam slot in said carriage, said cam slot having opposite upper and lower ends, and wherein each said cam follower is mounted in sliding registry within a corresponding said inclined cam slot in a corresponding said carriage, and wherein said cam follower is in said lower end of said cam slot when said elongate member is in said first position and said cam follower is in said upper end of said cam slot when said elongate member is in said second position.