BOLT FOR FRAME STRUCTURE
To provide a method which is favorable in a yield for attaching a frame structure to an attached member.SOLUTION: In a method for attaching a frame structure to an attached member by using a bolt, the bolt has a male screw part and a hollow flange, and a bottom part of the frame structure has a hole...
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Format: | Patent |
Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a method which is favorable in a yield for attaching a frame structure to an attached member.SOLUTION: In a method for attaching a frame structure to an attached member by using a bolt, the bolt has a male screw part and a hollow flange, and a bottom part of the frame structure has a hole having a diameter larger than an outside diameter of the male screw part of the bolt, and smaller than an outside diameter of the flange of the bolt. The method has the steps for making a side face of the flange tightly adhere to an inner wall of the frame structure by elastically deforming the side face of the flange to the outside by a press to a head part of the flange in a state in which the male screw part is made to penetrate the hole of the frame structure, and attaching the male screw part to the attached member.SELECTED DRAWING: Figure 6
【課題】フレーム構造体を被取付部材に取り付ける歩留まり良好な方法を提供する。【解決手段】ボルトを用いてフレーム構造体を被取付部材に取り付ける方法であって、前記ボルトは、雄ねじ部と中空のフランジとを有し、前記フレーム構造体は、底部が、前記ボルトの前記雄ねじ部の外径より大きく、前記ボルトの前記フランジの外径より小さい径の孔を有しており、前記雄ねじ部を前記フレーム構造体の孔に貫通させた状態で、前記フランジの頭部に対するプレスにより、前記フランジの側面を外側に塑性変形させて、前記フランジの側面を前記フレーム構造体の内壁に固着させるステップと、前記雄ねじ部を前記被取付部材に取り付けるステップとを有する方法により、上記課題を解決する。【選択図】図6 |
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