UNDERCUT PROCESSING MECHANISM

Title:

UNDERCUT PROCESSING MECHANISM

Document Type and Number:

WIPO Patent Application WO/2013/014952

Kind Code:

A1

Abstract:

The invention is an undercut processing mechanism that is able to perform de-molding easily even when the undercut portion (P1) of a molding (P) has a shape that is irregular on both sides of the direction orthogonal to the direction of de-molding by implementing a larger movement stroke within a limited set-up space. Inside a holder (30) that is disposed inside a movable mold (13), a pair of molding cores (51, 52) that mold the undercut portion (P1) are connected to and supported by a holding piece (40) that moves in the de-molding direction. During de-molding, the respective molding cores (51, 52) are guided by guiding means (33, 34) from a molding position in which the cores contact each other towards a mold release position in which the cores are separated, and each moves in front or in back so as to move past each other in opposite directions from one end of the holding piece (40) to the other end.

Inventors:

SORIMOTO MASANORI (JP)

Application Number:

PCT/JP2012/050359

Publication Date:

January 31, 2013

Filing Date:

January 11, 2012

Export Citation:

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Assignee:

TECHNOCRATS CORP (JP)
SORIMOTO MASANORI (JP)

International Classes:

B29C33/44; B22D17/22

Foreign References:

JP2001129857A	2001-05-15
JPH11105085A	1999-04-20
JPS6370316U	1988-05-11
JP2002326233A	2002-11-12
JPS5149250A	1976-04-28
JPS63132722U	1988-08-30
JPH02124113U	1990-10-12
JP2002326233A	2002-11-12

Other References: