Adjustably positionable mid-sole or shank for protective...

A - Human Necessities – 43 – B

Patent

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A43B 13/38 (2006.01) A43B 7/32 (2006.01) A43B 13/12 (2006.01)

Patent

CA 1179498

ABSTRACT An insert assembly for use in footwear such as safety boots or shoes is described. The assembly includes an insert member such as a mid-sole conforming generally in plan and elevation to the contours of the footwear sole and having heel, arch and ball portions. In the arch portion a generally longitudinally oriented and downwardly projecting rib is provided, the rib strengthening the mid-sole in the arch area and serving to deflect sharp objects away from the vulnerable arch area. The heel extension of the mid-sole is provided with a plurality of longitudinally spaced apart apertures, such as slots, for securing the mid-sole, via at least one correspondingly shaped projection, to a heel filler of the assembly carrying the projection. The apertures are spaced apart by a distance equal to one full footwear size so that one size of mid-sole can be used for several sizes of footwear thereby greatly reducing inventory and quality control problems. Also, one size of heel filler can be used for several sizes of protective mid-soles. The insert member may be a shank having similar apertures for engagement with the heel filler projection.

402765

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