A - Human Necessities – 43 – C
Patent
A - Human Necessities
43
C
A43C 15/14 (2006.01) A43C 15/06 (2006.01)
Patent
CA 2089221
Disclosed is a retractable spike assembly insertable into a cavity made for this purpose in the bottom surface of a footwear heel or sole, the assembly comprising spikes that can be extended whenever needed, such as on icy roads, rock or wet grass and to be pulled in when they are not wanted, such as inside ahouse. The spikes are mounted on a carrier plate extending parallel to a bottom plate extending flush with the bottom surface of the heel or sole when the assembly is mounted in the cavity. A guide pin rigidly connected to the bottom plate in the middle of the same is used to guide the carrier plate up and down. The upwards movement of the carrier plate is achieved with a compression spring mounted onto of the guide pin, the downwards movement being achieved with a cam held above the carrier plate. The cam is advantageously operated with a coin or any similar item thanks to a cylindrical peg inserted into a cylindrical through hole provided in a side wall of the cavity, the peg being held in the through hole by a locking pin. This retractable spike assembly is much simpler in structure and installation than the existing ones.
Khayat Rene E.
Robic
LandOfFree
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