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Title:
HOUSING FRAME PRODUCTION METHOD AND HOUSING FRAME
Document Type and Number:
Japanese Patent JP2016028890
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a housing frame having rigidity which is almost equal to that of an aluminum frame, being lightweight and easily used, and having sufficient durability.SOLUTION: Provided is a method for producing a body side frame 41 and a lid side frame 42 which are fixed to opening edge parts of a pair of box-shaped body side shell 51 and lid side shell 52. The method comprises: a step for injecting a melting raw material into a mold; a step for forming a cavity part 43, 44 inside of the melting raw material by injecting air into the mold by predetermined pressure; a step for cooling and solidifying a surface of the raw material of the cavity part 43, 44 by keeping pressure for a prescribed time; a step for raising the pressure of the air to the predetermined pressure and injecting the air, after the surface of the raw material of the cavity part 43, 44 starts to be solidified, and pressing the surface of the raw material to inside of the raw material; a step for enhancing composition density of the raw material by keeping pressure for a prescribed time; a step for further injecting the air to predetermined pressure, and pressing the surface of the raw material of the cavity part 43, 44 to inside of the raw material; and a step for further enhancing the composition density of the raw material by keeping pressure for a prescribed time, for producing a housing frame 40.SELECTED DRAWING: Figure 2

Inventors:
MATSUSHITA KENJI
Application Number:
JP2015141970A
Publication Date:
March 03, 2016
Filing Date:
July 16, 2015
Export Citation:
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Assignee:
TAIHEIYO TSUSHO KK
International Classes:
B29C45/00; A45C5/00; B29C45/57
Domestic Patent References:
JP2013146890A2013-08-01
JP2010004926A2010-01-14
JPS63112818U1988-07-20
JPH0511816U1993-02-19
JP2558005Y21997-12-17
JP2547391Y21997-09-10
JP2003511178A2003-03-25
JP3183373U2013-05-16
JP3150759B22001-03-26
JPH0929774A1997-02-04
JPH10291230A1998-11-04
JPH07299841A1995-11-14
JPH07290486A1995-11-07
JPS63242621A1988-10-07
JP2013146890A2013-08-01
JP2010004926A2010-01-14
JPS63112818U1988-07-20
JPH0511816U1993-02-19
JP2558005Y21997-12-17
JP2547391Y21997-09-10
JP2003511178A2003-03-25
JP3183373U2013-05-16
JP3150759B22001-03-26
JPH0929774A1997-02-04
JPH10291230A1998-11-04
JPH07299841A1995-11-14
JPH07290486A1995-11-07
JPS63242621A1988-10-07
Attorney, Agent or Firm:
Takaaki Kimura