Shoe with its vamp zonally covered with injected plastics material securely bonded to the fabric

• US 4,447,967 A
• Filed: 03/24/1982
• Issued: 05/15/1984
• Est. Priority Date: 04/23/1981
• Status: Expired due to Fees

• Current Assignee: Nuova Zarine SPA
• Original Assignee: Nouva Zarine SPA Construzione Macchine E Stampi Per Calzature
• Inventors: Zaino, Luigi
• Primary Examiner(s): Kee Chi, James
• Application Number:
  US06/361,494
• Time in Patent Office: 783 Days
• Field of Search: 36/45, 36/47, 36/48, 36/83, 36/84, 36/87, 36/114, 36/129, 36/128
• US Class Current: 36/45
• CPC Class Codes: A43B 23/0235 Different layers of different material
• CPC Class Codes: A43B 23/0265 having different properties in different directions
• CPC Class Codes: A43C 1/04 with rings or loops
• CPC Class Codes: B29D 35/064 using particular materials for the preformed uppers
• CPC Class Codes: B29L 2031/50 Footwear, e.g. shoes or parts thereof

Abstract

A shoe comprises a sock formed of fabric material and a reinforcing structure of plastic material which is directly injected onto the sock. The reinforcing structure covers predetermined parts of the sock to form a toe region, a reinforcement for the heel region, an edging which surrounds the shoe opening, and one or more transverse bands, all parts of the reinforcing structure being mutually integral with each other. The sock comprises at least one lateral part forming an upper and a base part formed of a fabric which is less than the fabric forming the lateral part. The reinforcing plastic structure includes a shaped grid-like portion formed by mutually intersecting ribs which penetrate through the less dense fabric of the sock base part into the inside of the sock from its outside. The grid-like portion thereby constitutes gripping projections which bonds the plastic reinforcing structure securely to the sock and further functions as a support for an insole.

Claims

1. In footwear of the shoe type including a fabric sock to which a reinforcing plastic structure is connected, the improvement comprising:

said fabric sock including a fabric base part and at least one fabric lateral part forming an upper of the shoe, said base part being formed of a fabric which is less dense than the fabric forming the shoe upper; and

said reinforcing plastic structure including a shaped grid-like portion formed by mutually intersecting ribs which penetrate through said less dense fabric of said sock base part into the inside of said sock from its outside, said grid-like portion constituting a support for an insole.

2. The combination of claim 1 wherein said fabric sock includes heel and toe regions and a region defining an opening into which a foot is adapted to be received, and wherein said reinforcing plastic structure includes integrally connected portions extending along substantially the entire region of the shoe opening, the heel and toe regions and on the outside of the sock along the base part thereof.