METHOD FOR MANUFACTURING A ONE-PIECE SHOE SHELL

• US 20110083286A1
• Filed: 10/08/2009
• Published: 04/14/2011
• Est. Priority Date: 10/08/2009
• Status: Abandoned Application

• Current Assignee: Sakurai Sports Mfg. Co., Ltd.
• Original Assignee: Sakurai Sports Mfg. Co., Ltd.
• Inventors: Yang, Hsin-Chih
• Application Number:
  US12/575,513
• Publication Number:
  US 20110083286A1
• Time in Patent Office: Days
• US Class Current: 12/142.R
• CPC Class Codes: A43B 5/1683 characterised by the lower part of the upper or by the shell
• CPC Class Codes: B29D 35/0009 by injection moulding; Apparatus therefor
• CPC Class Codes: B29D 35/12 Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique

Abstract

A method for manufacturing a one-piece shoe shell provides a method to produce a one-piece shoe shell having steps of: mounting a mold assembly on an injection molding machine; closing the mold assembly and forming a cavity that can produce a shoe shell having a sole, two lateral vamps and a quarter combined together; opening the mold assembly and ejecting the shoe shell. Because the sole, lateral vamps and quarter are integrally formed, a durability of the shoe shell is increased and the shoe shell is easily fabricated.

Claims

1. A method for manufacturing a one-piece shoe shell comprising steps of:

mounting a mold assembly on an injection molding machine, the mold assembly having a combinative outer mold and an inner mold, the outer mold and the inner mold controllable by the injection molding machine to combine with each other;

closing the mold assembly and having a cavity formed in the mold assembly, the cavity providing a space to form a shoe shell having a sole, two lateral vamps and a quarter combined together;

forcing molten plastic material into the mold cavity and forming the one-piece shoe shell having the sole, lateral vamps and quarter; and

opening the mold assembly and ejecting the shoe shell when the plastic material has cured sufficiently.

2. The method for manufacturing a one-piece shoe shell as claimed in claim 1 further comprising a step of mounting a fiber cover around the inner mold before closing the mold assembly to combine the fiber cover with molten plastic material to produce a shoe shell with fiber cover.

3. The method for manufacturing a one-piece shoe shell as claimed in claim 1 further comprising a step of mounting a block at a predetermined position on the inner mold before closing the mold assembly to make the shoe shell having a mounting space for mounting a protective sponge in the mounting space.

4. The method for manufacturing a one-piece shoe shell as claimed in claim 2 further comprising a step of mounting a block at a predetermined position on the inner mold before closing the mold assembly to make the shoe shell having a mounting space for mounting a protective sponge in the mounting space.

5. The method for manufacturing a one-piece shoe shell as claimed in claim 4, wherein molten plastic material is thermoplastic plastic.

6. The method for manufacturing a one-piece shoe shell as claimed in claim 4, wherein molten plastic material is thermosetting plastic.