Method for producing footwear

• US 4,706,316 A
• Filed: 03/23/1987
• Issued: 11/17/1987
• Est. Priority Date: 11/27/1985
• Status: Expired due to Term

• Current Assignee: Asolo SPA (Zanata Family)
• Original Assignee: Giancarlo Tanzi
• Inventors: Tanzi, Giancarlo
• Primary Examiner(s): Schroeder, Werner H.
• Assistant Examiner(s): Meyers, Steven N.
• Application Number:
  US07/029,146
• Time in Patent Office: 239 Days
• Field of Search: 36/12, 36/68, 36/69, 36/77 R, 36/73, 36/55, 12/146 D, 12/142 RS, 12/142 T, 12/142 K, 12/142 F, 12/15
• US Class Current: 12/142.00T
• CPC Class Codes: A43B 13/41 combined with heel stiffener, toe stiffener, or shank stiffener
• CPC Class Codes: A43B 9/12 Stuck or cemented footwear
• CPC Class Codes: A43D 3/12 Devices for inserting or reinserting lasts

Abstract

A method for the production of footwear is disclosed which comprises providing and attaching a midsole member with integrated toe and heel counters. The process provides for efficient use of labor and machinery by reducing the number of steps required in footwear production and by reducing the number of machines required. The method comprises placing the midsole over a liner, drawing a pre-formed upper over the midsole and attaching a sole to the upper. Attachment of the components is preferably by a heat-activated glue. The midsole component is adaptable to a number of applications by modifying such aspects as the size and shape of the toe and heel counters, the size, shape and/or presence of side walls, the contour and thickness of the bottom, and the attachment of shanks or other stiffening or resiliency modifying members.

Claims

1. A method for making footwear, comprising:

pre-forming an upper;

pre-forming a liner;

integrally forming together a sole, a toe counter and a heel counter to define a single piece midsole;

providing apparatus for supporting at least portions of the footwear, wherein said apparatus for supporting is used only as a support for portions of the footwear during the making thereof and wherein at least one of said pre-formed upper, said pre-formed liner, and said integrally formed midsole is used in defining at least one of the size and shape of the footwear during the making thereof;

placing at least portions of said liner in contact with portions of said midsole, wherein portions of said toe counter lie over portions of said liner and wherein said heel counter is positioned outwardly of portions of said liner;

forming a midsole/liner assembly using said midsole and said liner by attaching said midsole and said liner together;

providing an apparatus used for pulling said upper, said apparatus including first arm means and second arm means;

grasping said midsole using said first arm means of said apparatus for pulling;

after forming said midsole/liner assembly, pulling said upper outwardly of said midsole including said heel counter using said second arm means of said apparatus for pulling wherein said upper is tightly fitted with respect to said midsole/liner assembly;

using attaching means to attach said upper to said midsole; and

attaching a sole to said upper to form the footwear that includes said upper, said liner, said midsole and said sole.

2. A method, as claimed in claim 1, further including:

pre-forming a shank; and

attaching said shank to said midsole.

3. A method, as claimed in claim 1, further including:

pre-forming a foot bed; and

attaching said foot bed to the interior bottom surface of said liner.

4. A method, as claimed in claim 1, wherein:

said step of pre-forming a liner includes providing said liner with a bottom surface.

5. A method, as claimed in claim 1, wherein:

said step of pre-forming an upper includes providing a bottom surface of said upper.