Footwear having an enclosed toe

• US 8,533,976 B2
• Filed: 08/15/2011
• Issued: 09/17/2013
• Est. Priority Date: 07/22/2003
• Status: Active Grant

• Current Assignee: Keen LLC
• Original Assignee: Keen LLC
• Inventors: Fuerst, Rory W.
• Primary Examiner(s): Patterson, Marie
• Application Number:
  US13/210,322
• Publication Number:
  US 20110296709A1
• Time in Patent Office: 764 Days
• Field of Search: 36/115, 36/4, 36/81, 36/501, 36/45
• US Class Current: 36/11.5
• CPC Class Codes: A43B 1/14 made of plastics A43B1/028 takes precedence
• CPC Class Codes: A43B 13/141 with a part of the sole being flexible, e.g. permitting articulation or torsion
• CPC Class Codes: A43B 13/226 the profile being made in the foot facing surface
• CPC Class Codes: A43B 3/108 characterised by the sole
• CPC Class Codes: A43B 3/128 characterised by the sole
• CPC Class Codes: A43B 7/141 having an anatomical or curved form
• CPC Class Codes: B29D 35/0009 by injection moulding; Apparatus therefor
• CPC Class Codes: B29D 35/122 Soles

Abstract

Articles of footwear having an enclosed articulated toe portion, including a molded midsole with an integrally-molded toe cap shaped to receive a foot therein and to enclose the toes of the foot. The toe cap terminates at a position adjacent to the base of the toes of the foot. The articles additionally include an outsole affixed to the bottom of the midsole and an upper which in some embodiments is co-molded with the midsole and toe cap.

Claims

1. An article of footwear having an upper and a lower, comprising:

a one-piece block of material to receive a foot therein and shaped to form part of the lower, where the lower is configured to be substantially positioned on an underside of the foot, and where the block of material extends upward at a front edge of the foot and terminates at a position on top of the toes of the foot to form a toe cap which at least partially encloses the toes of the foot; and

a harness forming the upper and mounted on the lower, the harness comprising;

a plurality of straps configured to maintain the foot on and in the lower, the plurality of straps comprising a medial strap coupled to the toe cap, a heel strap configured to maintain a heel of the foot in a lateral position by traversing the article of footwear at a position behind the heel, and a plurality of side straps attached to the lower, where the side straps include two side heel straps, one on each side of the article of footwear to connect the heel strap, the plurality of side straps further comprising at least six mid-section side straps, with three outside mid-section side straps extending from the lower along an outer side of the foot and three inside mid-section side straps extending from the lower along an inner side of the foot; and

a plurality of lace-throughs to accommodate a lace, a lace-through coupled to the medial strap, a lace-through coupled to an inside mid-section side strap and one lace-through coupled to an outside mid-section side strap.

2. The article of footwear of claim 1, wherein the lower comprises a midsole flex line.

3. The article of footwear of claim 2, wherein the midsole flex line is substantially aligned with a rear edge of the toe cap.

4. The article of footwear of claim 1, wherein the portion of the one-piece block of material positioned underneath the foot and the toe cap are injection co-molded of the same moldable plastic.

5. The article of footwear of claim 1, wherein the mid-section side straps are attached to a side edge of the lower.

6. The article of footwear of claim 1, wherein the plurality of straps are comprised of one or more of leather and fabric.

7. The article of footwear of claim 1, wherein each mid-section side strap includes a lace-through.

8. The article of footwear of claim 1, wherein each side heel strap includes a lace-through.

9. The article of footwear of claim 1, wherein the mid-section side straps are tapered at an angle from the lower towards the toe cap.

10. The article of footwear of claim 1, wherein at least two outside mid-section side straps are substantially parallel to each other.

11. An article of footwear having an upper and a lower, comprising:

a one-piece block of material to receive a foot therein and shaped to form part of the lower, where the lower is configured to be substantially positioned on an underside of the foot, and where the block of material extends upward at a front edge of the foot and terminates at a position on top of the toes of the foot to form a toe cap which at least partially encloses the toes of the foot; and

a harness forming the upper and mounted on the lower, the harness comprising;

a plurality of straps configured to maintain the foot on and in the lower, the plurality of straps comprising a medial strap coupled to the toe cap, a heel strap configured to maintain a heel of the foot in a lateral position by traversing the article of footwear at a position behind the heel, and a plurality of side straps attached to the lower, where the side straps include two side heel straps, one on each side of the article of footwear to connect the heel strap, the plurality of side straps further comprising mid-section side straps, with at least one outside mid-section side strap extending from the lower along an outer side of the foot and at least one inside mid-section side strap extending from the lower along an inner side of the foot, where the mid-section side straps are positioned at an angle from the lower towards the toe cap;

a plurality of lace-throughs, one lace-through extending from an inside mid-section side strap and one lace-through extending from an outside mid section side strap; and

a lace traversing the harness and passing through the lace-throughs.

12. The article of footwear of claim 11, wherein the lace is crossed as it traverses the harness.

13. The article of footwear of claim 11, wherein the side straps are spaced apart to form side gaps.

14. The article of footwear of claim 11, wherein the medial strap is attached to at least one outside mid-section side strap and at least one inside mid-section side strap.

15. The article of footwear of claim 11, wherein the medial strap is attached to each of the mid-section side straps.

16. An article of footwear, comprising:

a lower including a one-piece block of material to receive a foot therein, where the block of material extends upward at a front edge of the foot and terminates at a position on top of the toes of the foot to form a toe cap which at least partially encloses the toes of the foot; and

an upper comprising a plurality of straps, the plurality of straps including a heel strap, a medial strap coupled to the toe cap, an inside mid-section side strap coupled to the medial strap, an outside mid-section side strap coupled to the medial strap, and a side heel strap coupled to the heel strap, wherein the medial strap, inside mid-section side strap, outside mid-section side strap, and side heel strap each include a lace-through extending therefrom and wherein the plurality of straps are comprised of different material than the one-piece block of material.

17. The article of footwear of claim 16, wherein the lace-through extending from the medial strap is further coupled to the toe cap.

18. The article of footwear of claim 16, wherein the lower further comprises an outsole coupled to the one-piece block of material.

19. The article of footwear of claim 16, wherein the lower further comprises a frictional surface positioned on top of the one-piece block of material.