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    • 18. 发明专利
    • Primary tapping screw spike
    • 主要螺丝螺丝
    • JP2008069963A
    • 2008-03-27
    • JP2007206336
    • 2007-08-08
    • Chun-I Hardware Co Ltd群億五金有限公司
    • CHENG MING CHIA
    • F16B37/04F16B25/10F16B35/00F16B37/00
    • F16B13/003F16B13/061F16B25/103F16B35/044
    • PROBLEM TO BE SOLVED: To solve a problem of a mating degree of a main body and a tension screw in a primary tapping screw spike.
      SOLUTION: The primary tapping screw spike includes the main body, the tension screw and the drill head. Inside of the main body is hollow wherein the tension screw is inserted. The drill head is screwed to a head part of the tension screw, its rear part is driven by a tool, a male screw mating with a main body head part is provided at a middle stage and a screw part and a deformed part are provided at a main body external part. As a first feature, the mating part capable of holding a mating relation with the male screw of the tension screw when a hole is expanded by moisture is provided for an inner circumference of the main body head part. As a second feature, a stopper part for preventing ejection by looseness of the main body between an extended flange of the main body and a confronting surface of the tension screw is provided.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:解决主自攻螺丝钉中的主体和张紧螺钉的配合度的问题。

      解决方案:主自攻螺丝钉包括主体,张紧螺丝和钻头。 主体内部是中空的,其中张紧螺丝被插入。 钻头旋入张紧螺丝的头部,其后部由工具驱动,与主体头部配合的外螺纹设置在中间阶段,螺钉部分和变形部分设置在 主体外部部分。 作为第一特征,当主体头部的内周设置孔时,通过水分膨胀,能够与拉伸螺钉的外螺纹保持配合关系的配合部。 作为第二特征,提供了用于防止主体在主体的延伸凸缘与张紧螺钉的相对表面之间松动的止动部件。 版权所有(C)2008,JPO&INPIT