IP Library › Granted Patent US 7,877,905
Granted Patent B2
US 7,877,905 · App. 11/585,542 · Granted Feb 1, 2011

Plastic shoe provided with decoration and method of manufacturing using casting mold

Assignee: ALSA GmbH
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Quick Facts
Patent No.
US 7,877,905
App. No.
11/585,542
Granted
Feb 1, 2011
Kind
B2
Abstract

A plastic shoe provided with a decoration, a method of manufacturing the shoe, and a casting mold for manufacturing the shoe, is disclosed. The decoration is printed on a polyurethane decorative film which is applied to the surface of the upper part of the plastic shoe with the printed side facing down. To do so, the upper shell of a conventional casting mold is provided on the inside with a fine-pored aluminum foam body to produce plastic shoes. The aluminum foam body is connected to a suction pump. The decorative film is held in the casting mold with the help of the vacuum thereby generated.

Claims (16)

1. A plastic shoe, in particular in a form of a clog, comprising a sole and an upper part that is joined to the sole, wherein a decorative film is attached to a surface on a top side of the upper part, wherein a decoration is printed on a side of the decorative film facing the upper part, and wherein the decorative film is made of a same material as the upper part.

2. The plastic shoe according to claim 1 , wherein the material is a polyurethane.

3. The plastic shoe according to claim 1 , wherein a bond between the decorative film and the upper part is free of an adhesive.

4. The plastic shoe according to claim 1 , wherein the top side of the upper part is an outside of the upper part.

5. The plastic shoe according to claim 4 , wherein the decorative film has a thickness of between approximately 0.2 to 0.3 mm.

6. The plastic shoe according to claim 1 , wherein the upper part is made of a foamed polyurethane.

7. A method for manufacturing a shoe having a sole and an upper part that is joined to the sole, wherein a decorative film is attached to a surface on a top side of the upper part, wherein a decoration is printed on a side of the decorative film facing the upper part, and wherein the decorative film is made of a same material as the upper part, comprising the sole and the upper part are produced by introducing a shoe material into a casting mold and foaming it there, the casting mold consisting of at least one upper shell and one lower shell, wherein an inside of the upper shell forms a contour of the top side of the upper part, and wherein the decorative film is arranged on the inside of the upper shell before introducing the shoe material.

8. The method according to claim 7 , wherein the decorative film is held on the inside of the upper shell by a vacuum.

9. The method according to claim 8 , wherein a suction device generating the vacuum has a fine-pored air-permeable metal foam molded body that forms an inner layer of the upper shell.

10. The method according to claim 9 , wherein the metal foam molded body is made of aluminum.

11. The method according to claim 7 , wherein the decorative film is heated before applying it to the upper shell.

12. The method according to claim 7 , wherein the top side of the upper part is an outside of the upper part.

13. The method according to claim 12 , wherein the decorative film has a thickness of between approximately 0.2 to 0.3 mm.

14. The method according to claim 7 , wherein the shoe material of the upper part is heated during foaming.

15. The method according to claim 7 , wherein the decorative film is attached to the surface on the top side of the upper part without a use of an adhesive.

16. The method according to claim 7 , wherein the upper part is made of a foamed polyurethane.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 16, 2007
From: BENSING, WILLI; HERBER, KARL-HEINRICH
To: ALSA GMBH
Reel/Frame 018795/0862 →
Priority Claims (1)
DE 10 2005 051 155 · Oct 24, 2005 · national
Continuity (1)
Related Publication 20070101619A1 · May 10, 2007