JOINT STRUCTURE

• Main Authors: MURAMATSU HIDETAKA, KARAKI TAKUYA, ITO KOICHI, KIYAMA MASAYUKI, KUROKAWA HIROYUKI
• Format: Patent
• Language: English; Japanese
• Published: 07.01.2021
• Subjects: BLASTING; DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

To inhibit increase of the weight of a joint structure and reduce a difference of thermal deformation amounts between members.SOLUTION: In a joint structure 10, a first member 12, formed by a fiber-reinforced composite material, and a second member 14, formed by a material having a larger linear expansion coefficient in an in-plane direction than that of the first member 12, are joined. A joint portion between the first member 12 and the second member 14 is provided with an adjustment part 22 which is formed having a substantially hat-shaped cross section protruding to a direction opposite to the second member 14. Further, the adjustment part 22 is provided with an arc shaped corner part 26C which is formed having a thickness larger than a thickness of the other portion of the adjustment part 22. The structure reduces a difference of thermal deformation amounts between the first member 12 and the second member 14 occurring when the joint structure 10 is heated while inhibiting increase of the weight of the joint structure 10.SELECTED DRAWING: Figure 2 【課題】接合構造の重量増加を抑えた上で部材間の熱変形量の差を抑制する。【解決手段】接合構造１０では、繊維強化複合材料により形成された第１部材１２と第１部材１２よりも面内方向の線膨張率の大きい材料により形成された第２部材１４が接合されている。ここで、第１部材１２の第２部材１４との接合部分に、第２部材１４とは反対側へ向けて凸となる断面略ハット状に形成された調整部２２を設ける。また、調整部２２には、厚さが調整部２２の他の部分の厚さよりも厚く形成された円弧形状のコーナー部２６Ｃが設けられている。これにより、接合構造１０の重量増加を抑えた上で接合構造１０が加熱された際の第１部材１２と第２部材１４との間の熱変形量の差を抑制する。【選択図】図２