Last for an article of footwear and footwear made therefrom

• US 5,661,864 A
• Filed: 03/10/1995
• Issued: 09/02/1997
• Est. Priority Date: 03/10/1995
• Status: Expired due to Fees

• Current Assignee: Nike, Inc.
• Original Assignee: Nike, Inc.
• Inventors: Auger, Perry W., Vincent, Stephen Michael, Valiant, Gordon A.
• Primary Examiner(s): Dayoan, B.
• Application Number:
  US08/402,033
• Time in Patent Office: 907 Days
• Field of Search: 12/133 R, 12/146 L, 12/135 R, 12/135 A, 12/139, 12/140, 12/141, 12/137, 36/114
• US Class Current: 12/133.00R
• CPC Class Codes: A43D 3/00 Lasts

Abstract

An improved last, and article of footwear derived therefrom, for providing improved function, fit, and comfort for use in various athletic activities, and in particular for running. The last has dimensions defined by a plurality of cross-sectional contours extending from proximate a proximal end of the heel portion to proximate a distal end of the forefoot portion. The last dimensions are in accordance with or proportional to the plurality of cross-sectional contours shown in FIGS. 13-97. The last is characterized by a natural shape to the top of the cone or island and an enlarged toe box.

Claims

1. A last for making an article of footwear, said last comprising:

a forefoot portion;

a cone portion rearward of said forefoot portion; and

a heel portion rearward of said cone portion;

wherein said last has dimensions defined by a plurality of cross-sectional contours extending from proximate a proximal end of said heel portion to proximate a distal end of said forefoot portion;

wherein said last dimensions are in accordance with or proportional to said plurality of cross-sectional contours shown in FIGS. 13-97.

2. The last of claim 1 wherein said cross-sectional contours are taken along consecutive parallel planes to a reference X-Y plane defined as Z being equal to 0.0.

3. The last of claim 2 wherein said cross-sectional contours are derived from eighty-five cross sections taken through said last, a first said cross section being located proximate said proximal end of said heel portion and an eighty-fifth said cross section being located proximate said distal end of said forefoot portion, each said cross-sectional contour corresponding to each said respective cross section through said last.

4. The last of claim 3 wherein said first said cross section is spaced 3 mm or less from said proximal end of said heel portion, said eighty-fifth cross section is spaced 3 mm or less from said distal end of said forefoot portion, and each said cross-sectional contour is spaced 3 mm from an adjacent said cross-sectional contour.

5. The last of claim 1 wherein said cross-sectional contours of said forefoot portion define an enlarged toe box to comfortably accommodate a first toe.

6. The last of claim 1 wherein said cross-sectional contours of said forefoot portion, said cone portion and said heel portion define a bottom edge having a rounded periphery in order to accommodate a natural shape of a bottom surface of a human foot.

7. The last of claim 1 wherein said cross-sectional contours of said heel portion include a cone island defined by an upper surface of said heel portion, said cone island having a generally circular shape to accommodate a natural shape of a human ankle.

8. The last of claim 1 wherein said cross-sectional contours define a women'"'"'s size 7 last, wherein said size 7 is graded in accordance with or proportional to the stick length, toe spring height, ball, and waist measurements represented in FIG. 10.

9. An article of footwear having a shape complimentary to the last of claim 1.

10. An article of footwear comprising:

a shoe upper formed around a shoe last; and

a shoe sole;

wherein said shoe upper includes a heel area, an instep area and a forefoot area; and

wherein said last has dimensions defined by a plurality of cross-sectional pg,16 contours extending from proximate a proximal end of a heel portion of said last to proximate a distal end of a forefoot portion of said last;

wherein said last dimensions are in accordance with or proportional to said plurality of cross-sectional contours shown in FIGS. 13-97.

11. The article of footwear of claim 10 wherein said cross-sectional contours are taken along consecutive parallel planes to a reference X-Y plane defined as Z being equal to 0.0.

12. The article of footwear of claim 11 wherein said cross-sectional contours are derived from eighty-five cross sections taken through said last, a first said cross section being located proximate said proximal end of said heel portion and an eighty-fifth said cross section being located proximate said distal end of said forefoot portion, each said cross-sectional contour corresponding to each said respective cross section through said last.

13. The article of footwear of claim 12 wherein first cross section is spaced 3 mm or less from said proximal end of said heel portion, said eight-fifth cross section is spaced 3 mm or less from said distal end of said forefoot portion, and each said cross-sectional contour is spaced 3 mm from an adjacent said cross-sectional contour.