METHOD OF FORMING A SHOE LINING

• US 3,750,209 A
• Filed: 03/06/1972
• Issued: 08/07/1973
• Est. Priority Date: 03/06/1972
• Status: Expired due to Term

• Current Assignee: Adolf Dassler
• Original Assignee: Adolf Dassler
• Inventors: Dassler, Adolf
• Primary Examiner(s): Lawson, Patrick D.
• Application Number:
  US05/231,960
• Time in Patent Office: 519 Days
• Field of Search: 12/142R,146R,146C,146D 36/71
• US Class Current: 12/146.00C
• CPC Class Codes: A43D 11/00 Machines for preliminary treatment or assembling of upper-parts, counters, or insoles on their lasts preparatory to the pulling-over or lasting operations; Applying or removing protective coverings

Abstract

The invention relates to a method of forming a shoe lining. The aim of the invention is to produce a shoe lining which can be connected to the upper and accurately brought into line with the regions of the foot which are to be protected more simply and cheaply than has been possible heretofore. This aim is accomplished by forming a shoe lining comprising providing a web of material including a first layer of weldable foam material and a second dense layer of weldable material overlying the first area, effecting a pressing and heating treatment over a substantial area of the first layer to fuse the foam and make this area dense, while leaving a portion of the first layer untouched to form a cushion.

Claims

1. A method of forming a shoe lining from a web of material including a first layer of weldable foam material and a second dense layer of weldable material overlying said first layer, the improvement to effect a pressing and heating treatment over a substantial area of said first layer to fuse the foam and make this area dense, while leaving a portion of the first layer untouched to form a cushion, wherein said web is formed by heating a foaming material in a mould to provide said first layer, and said second layer being formed by fusing at the wall of the mould.

2. A method of forming a shoe lining from a web of material including a first layer of weldable foam material and a second dense layer of weldable material overlying said first layer, the improvement to effect a pressing and heating treatment over a substantial area of said first layer to fuse the foam and make this area dense, while leaving a portion of the first layer untouched to form a cushion, wherein the pressing and heating operation is effected by a combined punching and welding tool which simultaneously punches the lining from the web.

3. A method of forming a shoe lining from a web of material including a first layer of weldable foam material and a second dense layer of weldable material overlying said first layer, the improvement to effect a pressing and heating treatment over a substantial area of said first layer to fuse the foam and make this area dense, while leaving a portion of the first layer untouched to form a cushion, wherein a material web, such as tricot, is positioned on the side of said first layer remote from said second layer.

4. A method of constructing a shoe upper provided with a lining in the heel zone from a web of material including a first layer of weldable foam material and a second dense layer of weldable material overlying said first area, comprising the following steps:

a. effecting a pressing and heating treatment over a substantial area of said first layer to fuse the foam and make this area dense, while leaving a portion of the first layer untouched to form a cushion;

b. connecting said area to the exterior of the upper, near the top edge of the heel zone thereof; and

c. folding said lining inwardly so that the cushion lies within the heel area of the upper.

5. A method of constructing a shoe upper provided with a lining in the heel zone from an integral web of material including a first layer of weldable foam material and a second dense layer of weldable material overlying said first area, comprising the steps of effecting a pressing and heating treatment over a substantial area of said first layer to fuse the foam and make this area dense, while leaving a portion of the first layer untouched to form a cushion;

and connecting said area to the exterior of the upper.

6. A method according to claim 5 in which said second layer is non-porous.

7. A method according to claim 5 in which said web is formed by heating a foaming material in a mould to provide said first layer, and said second layer being formed by fusing at the wall of the mould.

8. A method according to claim 5 in which the pressing and heating operation is effected by a combined punching and welding tool which simultaneously punches the lining from the web.

9. A method according to claim 5 in which a material web, such as tricot, is positioned on the side of said first layer remote from said second layer.

10. A method according to claim 5 in which the fused dense area of said first layer completely surrounds the cushion.