Customized fit shoe and bladder therefor

• US 5,416,988 A
• Filed: 04/23/1993
• Issued: 05/23/1995
• Est. Priority Date: 03/17/1989
• Status: Expired due to Term

• Current Assignee: Nike, Inc.
• Original Assignee: Nike, Inc.
• Inventors: Kilgore, Bruce J., Potter, Daniel R.
• Primary Examiner(s): Foster, Jimmy G.
• Assistant Examiner(s): KAVANAUGH, JOHN T
• Application Number:
  US08/052,282
• Time in Patent Office: 760 Days
• Field of Search: 36/115, 36/114, 36/91, 36/71, 36/89, 36/93, 36/88, 36/92, 36/114, 36/119, 36/153, 36/29, 36/154, 128/80 H
• US Class Current: 36/89
• CPC Class Codes: A43B 17/035 provided with a pump or valve
• CPC Class Codes: A43B 5/00 Footwear for sporting purposes non-skid devices, e.g. ice-spurs or studs for football shoes, A43C15/00
• CPC Class Codes: A43B 5/0407 inflatable
• CPC Class Codes: A43B 5/1666 characterised by the upper

Abstract

A customized fit shoe, and particularly a high-top ice hockey skate, having a plurality of interior inflatable chambers. The chambers are configured and inflatable to different amounts to conform to the contours of the arch and the area below the malleoli of the foot in the shoe. The inflation of the chambers is accurately and easily adjusted through an upper push-to-deflate valve. When thereby adjusted, the concavities of the arch and ankle are filled without restricting the plantar or dorsi flexion of the foot.

Claims

1. A customized fit shoe for a foot placed therein, the customized fit shoe generally surrounding the heel and lateral and medial malleoli of a foot placed therein, comprising:

a sole;

an upper attached to said sole;

heel chamber means attached to and positioned inside of said upper and inflatable with gas to contour to the area behind and slightly above the malleoli of a foot placed within the customized fit shoe, said heel chamber means including an outer perimeter;

malleoli chamber means attached to and positioned inside of said upper and inflatable with gas to contour to the area directly below the malleoli of a foot placed within the customized fit shoe, said malleoli chamber means including an outer perimeter;

valve means accessible from outside of said upper for adjusting the gas pressure in said heel chamber means and said malleoli chamber means to provide a customized fit for a foot placed within the customized fit shoe;

said heel chamber means being formed of layers of elastomeric material connected around the outer perimeter of said heel chamber means to define medial and lateral heel chambers, said medial and lateral heel chambers each thus including an outer perimeter defined by the connection of said layers of elastomeric material;

said malleoli chamber means being formed of layers of elastomeric material connected around the outer perimeter of said heel chamber means to define medial and lateral malleoli chambers, said medial and lateral malleoli chambers each thus including an outer perimeter defined by the connection of said layers of elastomeric material, a portion of the outer perimeters of said medial heel and malleoli chambers being adjacent to and separate from one another, and a portion of the outer perimeters of said lateral heel and malleoli chambers being adjacent to and separate from one another, to thereby prevent the formation of restrictive columns of pressurized gas between adjacent heel and malleoli chambers.

2. The customized fit shoe of claim 1 wherein said upper includes a heel area, said medial and lateral heel chambers are positioned behind and slightly above the medial and lateral malleoli of a foot placed within the customized fit shoe, and said medial and lateral malleoli chambers are positioned below the medial and lateral malleoli of a foot placed within the customized fit shoe, and further comprising a passageway positioned in the heel area of said upper, said passageway positioned between said medial heel and malleoli chambers and said lateral heel and malleoli chambers to provide fluid communication between said heel chamber means and said malleoli chamber means, said passageway having a width sufficient to allow gas to pass freely through said passageway but insufficient to inflate said passageway significantly whereby an inflated chamber does not impinge on the area at the back of the heel of a foot placed within the customized fit shoe.

3. The shoe of claim 1 further comprising a non-inflatable air passageway through which air passes between said heel chamber means and said malleoli chamber means.

4. A custom-fit shoe for a foot placed therein, the custom-fit shoe generally surrounding an arch area of a foot placed therein, the arch area of the foot being located on the medial side of the foot and including a side surface and a plantar surface wherein the plantar surface defines a plantar surface perimeter, comprising:

a sole;

an upper attached to said sole and generally defining therewithin a shoe interior, said upper including a medial side;

arch chamber means generally in said shoe interior and inflatable with gas to contour to the arch area of a foot placed within said shoe interior,

said arch chamber means including a side arch chamber positioned generally adjacent said upper along the medial side of said upper and along the side surface of the arch area of a foot placed within said shoe interior and an arch chamber lying generally on said sole and having a perimeter generally following the perimeter of the plantar surface of the arch area of a foot placed within said shoe interior,

said arch chamber being partially separated from said side arch chamber in an area of the custom-fit shoe between the sole and the upper and in fluid communication with said side arch chamber, said side arch and arch chambers together contouring the custom-fit shoe to the entire arch area of a foot placed within said shoe interior, including said side and plantar surfaces; and

valve means for adjusting the gas pressure in said side arch chamber means to provide a custom fit in the arch area of a foot placed within said shoe interior;

wherein said side arch chamber is defined by a contouring weld which further contours the fit of said side arch chamber to the side surface of the arch area of a foot placed within said shoe interior,

wherein said arch chamber includes a contouring weld in its interior area which further contours the fit of said arch chamber to the plantar surface of the arch area of a foot placed within said shoe interior, and

wherein said contouring welds are substantially curved such that the concave surfaces of said contouring welds are disposed towards said area of the custom-fit shoe between the sole and the upper where said arch chamber is partially separated from said side arch chamber.

5. The custom-fit shoe of claim 4 wherein said valve means comprises a valve positioned generally centrally high on the back of said upper.