Foot-fitting insert for ski boot or the like

• US 3,925,916 A
• Filed: 08/22/1974
• Issued: 12/16/1975
• Est. Priority Date: 10/04/1973
• Status: Expired due to Term

• Current Assignee: Carlo Garbuio
• Original Assignee: Carlo Garbuio
• Inventors: Garbuio, Carlo
• Primary Examiner(s): Lawson, Patrick D.
• Application Number:
  US05/499,406
• Time in Patent Office: 481 Days
• Field of Search: 36/2.5R,2.5AL,71
• US Class Current: 36/71
• CPC Class Codes: A43B 5/04 Ski or like boots
• CPC Class Codes: A43B 5/0405 Linings, paddings or insertions; Inner boots

Abstract

A flexible insert for a boot comprises a foot-fitting liner with a core of elastomeric sheet material sandwiched between two skins. At least part of the core is an open-celled foam polymer in an air-impervious envelope, preferably of heat-sealable plastic.

Claims

1. An insert for a boot;

comprising a foot-fitting liner of flexible sheet material including an elastomeric core sandwiched between two skins, at least part of said core having a multiplicity of interstices filled with air, said skins including a fabric impregnated with an air-impervious mass to form an airtight envelope about said part.

2. An insert as defined in claim 1 wherein said part consists essentially of an open-celled foam polymer.

3. An insert for a boot, comprising a foot-fitting liner of flexible sheet material including two juxtaposed skins bonded to each other along a plurality of closed seams encompassing separate areas, and an elastomeric core of open-celled foam polymer sandwiched between said skins in each of said areas, said skins forming an air-impervious envelope about each core whereby air in the cells of each core has limited mobility within the envelope but cannot escape therefrom.

4. An insert as defined in claim 3, further comprising a solid elastomeric layer sandwiched between said skins in parts of said liner outside said areas.

5. An insert as defined in claim 3, wherein said areas extend along opposite sides of said liner across the region of the ankle.

6. An insert as defined in claim 5, further comprising a resilient pad on said liner overlying a fraction of each area in the region of the ankle.

7. An insert as defined in claim 3 wherein said skins include a fabric.

8. An insert as defined in claim 7 wherein said fabric is impregnated with an impervious mass along said part.

9. An insert as defined in claim 7 wherein said envelope consists of thermoplastic layers overlain by said fabric.