초록 ▼

An article of footwear includes a sole having a cavity formed therein and a plurality of holes extending from the cavity to the bottom surface of the sole. A spike is disposed in each one of the holes, and each spike is translatable between an extended position wherein a first end of the spike protr

An article of footwear includes a sole having a cavity formed therein and a plurality of holes extending from the cavity to the bottom surface of the sole. A spike is disposed in each one of the holes, and each spike is translatable between an extended position wherein a first end of the spike protrudes from the bottom surface of the sole and a retracted position wherein the first end does not protrude from the bottom surface of the sole. A slide member is slidably disposed in the cavity and has a plurality of recesses formed in a first surface thereof which is oriented towards the spikes. The slide member is translatable in a lengthwise direction between a first position wherein the recesses are aligned with the spikes so that the spikes assume their retracted position and a second position wherein the recesses are not aligned with the spikes so that the spikes assume their extended position.

대표청구항 ▼

[ What is claimed is:] [1.] An article of footwear comprising:a sole having a front end, a back end, a bottom surface, a cavity formed therein, a hole extending from said cavity to said bottom surface, a first channel extending from said cavity to said front end and a second channel extending from s

[ What is claimed is:] [1.] An article of footwear comprising:a sole having a front end, a back end, a bottom surface, a cavity formed therein, a hole extending from said cavity to said bottom surface, a first channel extending from said cavity to said front end and a second channel extending from said cavity to said back end;a traction improving spike having a first end and a second end, said spike being disposed in said hole and translatable along its longitudinal axis between an extended position wherein said first end protrudes from said bottom surface of said sole and a retracted position wherein said first end does not protrude from said bottom surface of said sole; anda slide member slidably disposed in said cavity and having a first surface oriented towards said spike, said slide member having a recess formed in said first surface and being translatable in a lengthwise direction with respect to said sole between a first position wherein said recess is aligned with said spike so that said spike assumes its retracted position and a second position wherein said recess is not aligned with said spike so that said spike assumes its extended position, said slide member further having a front tab received in said first channel and a back tab received in said second channel, wherein said front tab protrudes from said front end and said back tab does not protrude from said back end when said slide member is in one of its first and second positions and said back tab protrudes from said back end and said front tab does not protrude from said front end when said slide member is in the other of its first and second positions.