Title:
METHOD FOR PRODUCING PERFORATED HOLLOW TUBE AND MOLD FORM FOR PRODUCING PERFORATED HOLLOW TUBE
Document Type and Number:
WIPO Patent Application WO/2011/158517
Kind Code:
A1
Abstract:
Disclosed is a method for producing a perforated hollow tube having a plurality of through holes extending from the outer peripheral surface to the inner peripheral surface, wherein a resin is injected into a mold form comprising a core die for forming an inner space of the perforated hollow tube, and a main die comprising a reference surface for forming the outer peripheral surface and projections for forming the plurality of through holes, the main die being constituted with a plurality of main parts so as to be dividable, and after the resin is cured, the main die and the core die are removed in this order.
Inventors:
UDA, Yasuhiro (1-2 Shimohozumi 1-chome, Ibaraki-sh, Osaka 80, 〒5678680, JP)
宇田 康弘 (〒80 大阪府茨木市下穂積１丁目１番２号日東電工株式会社内 Osaka, 〒5678680, JP)
HAMADA, Toshimitsu (1-2 Shimohozumi 1-chome, Ibaraki-sh, Osaka 80, 〒5678680, JP)
宇田 康弘 (〒80 大阪府茨木市下穂積１丁目１番２号日東電工株式会社内 Osaka, 〒5678680, JP)
HAMADA, Toshimitsu (1-2 Shimohozumi 1-chome, Ibaraki-sh, Osaka 80, 〒5678680, JP)
Application Number:
JP2011/003484
Publication Date:
December 22, 2011
Filing Date:
June 17, 2011
Export Citation:
Assignee:
NITTO DENKO CORPORATION (1-2 Shimohozumi 1-chome, Ibaraki-shi Osaka, 80, 〒5678680, JP)
日東電工株式会社 (〒80 大阪府茨木市下穂積１丁目１番２号 Osaka, 〒5678680, JP)
UDA, Yasuhiro (1-2 Shimohozumi 1-chome, Ibaraki-sh, Osaka 80, 〒5678680, JP)
宇田 康弘 (〒80 大阪府茨木市下穂積１丁目１番２号日東電工株式会社内 Osaka, 〒5678680, JP)
日東電工株式会社 (〒80 大阪府茨木市下穂積１丁目１番２号 Osaka, 〒5678680, JP)
UDA, Yasuhiro (1-2 Shimohozumi 1-chome, Ibaraki-sh, Osaka 80, 〒5678680, JP)
宇田 康弘 (〒80 大阪府茨木市下穂積１丁目１番２号日東電工株式会社内 Osaka, 〒5678680, JP)
International Classes:
B29C33/44; B29C45/44; B29L23/00
Attorney, Agent or Firm:
KAMADA, Koichi et al. (8th Fl, UMEDA PLAZA BLDG. ANNEX 4-3-25, Nishitenma, Kita-ku, Osaka-sh, Osaka 47, 〒5300047, JP)
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Claims: