Balance footwear with shank
AssigneeBV Nimco Schoenfabriek J.Verschuur & Co.
InventorsCarolus Hubertus Johannes Servatius SMITS, Claudio FRANCO
Life of this patent
Estimating the term…
Abstract
An injection moulded balance footwear comprising an upper and a shoe sole which has an convex bottom profile forming an impact region in a midfoot region MR. The shoe sole comprises an outsole, a midsole connected to the outsole by injection moulding and an embedded shank which is configured to stabilise a wearer's foot. The shank has a U-shaped shank body including a U-bend portion being positioned at a heel region, a first U-leg and a second U-leg extending from the heel region through the midfoot region into a forefoot region. The shank has a bridge portion at the midfoot region which interconnects the first and second U-leg. The shank is improved in that the bridge portion protrudes below the U-shaped shank body.
Claims17
A balance footwear which is configured to be manufactured by injection moulding, which balance footwear comprises an upper and a shoe sole which extends in a longitudinal direction from a heel region through a midfoot region to a forefoot region, wherein the shoe sole has an convex bottom profile such that an impact region of the shoe sole is defined in the midfoot region, the shoe sole comprises an outsole a midsole and a shank embedded in the midsole wherein:
- the outsole has an outsole body having a lower surface defining a ground-contacting surface of the shoe sole and an upper surface for supporting the midsole;
- the midsole has a midsole body being connected to the outsole by injection moulding and wherein the midsole has a midsole upper surface for attachment to at least one of an insole and the upper;
- and
- the shank for stabilising a wearer's foot is embedded in the midsole wherein the shank has a U-shaped shank body including a U-bend portion being positioned at the heel region, a first U-leg and a second U-leg extending from the heel region through the midfoot region into the forefoot region, wherein the shank has a bridge portion at the midfoot region which interconnects the first and second U-leg, wherein the bridge portion protrudes below the U-shaped shank body, and wherein the bridge portion of the shank is formed by a deepening which is open from above.
A balance footwear which is configured to be manufactured by injection moulding, which balance footwear comprises an upper and a shoe sole which extends in a longitudinal direction from a heel region through a midfoot region to a forefoot region, wherein the shoe sole has an convex bottom profile such that an impact region of the shoe sole is defined in the midfoot region, the shoe sole comprises an outsole a midsole and a shank embedded in the midsole wherein:
- the outsole has an outsole body having a lower surface defining a ground-contacting surface of the shoe sole and an upper surface for supporting the midsole;
- the midsole has a midsole body being connected to the outsole by injection moulding and wherein the midsole has a midsole upper surface for attachment to at least one of an insole and the upper;
- and
- the shank for stabilising a wearer's foot is embedded in the midsole wherein the shank has a U-shaped shank body including a U-bend portion being positioned at the heel region, a first U-leg and a second U-leg extending from the heel region through the midfoot region into the forefoot region, wherein the shank has a bridge portion at the midfoot region which interconnects the first and second U-leg, wherein the bridge portion protrudes below the U-shaped shank body in abutting engagement with the outsole, wherein the bridge portion of the shank is formed by a deepening which is open from above, and wherein the deepening is box-shaped including a bottom wall and a circumferential side wall having at least one aperture forming several studs to allow a load transfer from the shank body through the studs to the bottom wall of the bridge portion.
A shank for manufacturing a balance footwear by injection moulding of a midsole, wherein the shank comprises a U-shaped shank body including a U-bend portion to be positioned at a heel region, a first U-leg and a second U-leg to extend from the heel region through a midfoot region into a forefoot region of a shoe sole, wherein the shank has a bridge portion at the midfoot region which interconnects the first and second U-leg, and wherein the bridge portion protrudes below the U-shaped shank body.
A balance shoe sole formed by injection moulding, wherein the balance shoe sole extends in a longitudinal direction from a heel region through a midfoot region to a forefoot region, wherein the balance shoe sole has an convex bottom profile such that an impact region of the balance shoe sole is defined in the midfoot region, the balance shoe sole comprises an outsole a midsole and a shank embedded in the midsole wherein:
- the outsole has an outsole body having a lower surface defining a ground-contacting surface of the shoe sole and an upper surface for supporting the midsole;
- the midsole has a midsole body being connected to the outsole by injection moulding and wherein the midsole has a midsole upper surface for attachment to at least one of an insole and the upper;
- and
- the shank for stabilising a wearer's foot is embedded in the midsole wherein the shank has a U-shaped shank body including a U-bend portion being positioned at the heel region, a first U-leg and a second U-leg extending from the heel region through the midfoot region into the forefoot region, wherein the shank has a bridge portion at the midfoot region which interconnects the first and second U-leg, and wherein the bridge portion protrudes below the U-shaped shank body.
Dependencies are inferred from the claim text.