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US 11,109,642 B2Granted
Layered foam sole for an article of footwear
AssigneeReebok International Ltd.
InventorsMatthew Montross, Jeff Acheson, Dan Buonomo
Life of this patent
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Abstract
A method of making a midsole for an article of footwear includes forming a plurality of foam layers, arranging the plurality of foam layers in a mold to form the midsole, piercing the plurality of foam layers with pins, and introducing heat with the pins to bond the plurality of layers together.
Claims20
A method of making a midsole for an article of footwear, the method comprising:
- forming a plurality of foam layers;
- arranging the plurality of foam layers in a mold;
- inserting pins into the plurality of foam layers;
- and
- delivering heat to an interface between adjacent foam layers of the plurality of foam layers via the pins to bond the plurality of foam layers together to form the midsole,
- wherein the plurality of foam layers are arranged in the mold before delivering heat to the interface between adjacent foam layers of the plurality of foam layers.
3 more elements
A method of making a midsole for an article of footwear, the method comprising:
- forming a plurality of foam layers;
- arranging the plurality of foam layers in a mold;
- inserting pins into the plurality of foam layers;
- and
- delivering heat to an interface between adjacent foam layers of the plurality of foam layers via the pins to bond the plurality of foam layers together to form the midsole,
- wherein holes are present in the plurality of foam layers prior to inserting the pins, and wherein inserting the pins into the plurality of foam layers comprises inserting the pins into the holes.
3 more elements
A method of making a midsole for an article of footwear, the method comprising:
- forming a plurality of foam layers;
- arranging the plurality of foam layers in a mold;
- piercing the plurality of foam layers with pins;
- and
- using the pins to introduce heat at an interface between adjacent foam layers of the plurality of foam layers to bond the plurality of foam layers together to form the midsole,
- wherein the plurality of foam layers alternates between a polyether block amide foam layer and an ethyl vinyl acetate foam layer.
3 more elements
Dependencies are inferred from the claim text.