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JIG USED FOR MANUFACTURING COMPOSITE MATERIAL STRUCTURE HAVING THICKENED WALL PORTION IN TRANSVERSE CROSS-SECTION

  • US 20120219660A1
  • Filed: 09/08/2010
  • Published: 08/30/2012
  • Est. Priority Date: 09/15/2009
  • Status: Active Grant
First Claim
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1. A jig used for manufacturing a composite material structure, the jig being inserted into a channel portion of a hat stringer and used, when the composite material structure is manufactured by attaching prepreg to a frame structure including the hat stringer as a frame member, the channel portion extending in a lengthwise direction of the hat stringer;

  • the jig comprising;

    a body having a pipe shape and made of an elastic material, the body having a trapezoidal shape in which a transverse cross-section perpendicular to a lengthwise direction of the body has an upper base and a lower base longer than the upper base;

    wherein an interior of the body is tightly sealed, and the body has on one end portion thereof, a pressurization hole for pressurizing the interior of the body to inflate the body; and

    the body has thickened edge portions in which both base angle portions of at least the lower base are greater in thickness than another wall portions, among four corner portions in the transverse cross-section of the trapezoidal shape.

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