The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 04, 2025

Filed:

Oct. 12, 2022
Applicant:

Kawasaki Jukogyo Kabushiki Kaisha, Kobe, JP;

Inventors:

Kenshirou Okumura, Kobe, JP;

Takaya Hamamoto, Kobe, JP;

Toshikazu Sana, Kobe, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 33/76 (2006.01); B29C 33/48 (2006.01); B29C 70/30 (2006.01); B29C 70/46 (2006.01); B29C 70/54 (2006.01); B29K 305/12 (2006.01); B29K 307/04 (2006.01); B29L 31/30 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01);
U.S. Cl.
CPC ...
B29C 70/30 (2013.01); B29C 33/76 (2013.01); B29C 70/462 (2013.01); B29C 70/54 (2013.01); B29C 33/485 (2013.01); B29K 2305/12 (2013.01); B29K 2307/04 (2013.01); B29L 2031/3076 (2013.01); B29L 2031/3082 (2013.01); B32B 5/02 (2013.01); B32B 5/26 (2013.01); B32B 2260/023 (2013.01); B32B 2260/046 (2013.01); B32B 2262/106 (2013.01);
Abstract

A core according to one aspect of the present disclosure is a core that is inserted into a space between a skin and a stringer in a step of integrally molding the skin and the stringer, the skin including fiber-reinforced resin, the stringer having a hat-shaped section that is open toward the skin. The core includes: a first die that extends along a longitudinal direction of the stringer and contacts the skin; a second die that extends along the longitudinal direction of the stringer, is adjacent to the first die, and contacts the skin; and a third die that extends along the longitudinal direction of the stringer, is located at an opposite side of the skin across the first die and the second die, and contacts both the first die and the second die.


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