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    • 5. 发明专利
    • BOLT AND NUT
    • JP2003172330A
    • 2003-06-20
    • JP2002274363
    • 2002-09-20
    • AOYAMA SEISAKUSHO
    • MIZUNO HIROMICHIHAMADA MASAHIKOOSAWA TETSUYAAOYAMA KAZUHIROOZAWA MITSURU
    • F16B35/00F16B35/04F16B37/00
    • PROBLEM TO BE SOLVED: To provide a bolt capable of maintaining an attitude of the same and fastening the same appropriately without generating trouble in fastening such as seizure even if the bolt is obliquely screwed in a nut. SOLUTION: The bolt includes a head part and a shaft part extending out from the head part. The shaft part includes a first fixed diameter column shaped part, a transition part, a column shaped connecting part, and a second fixed diameter column shaped part. The first fixed diameter column shaped part has a fixed first diameter along an axial direction and has thread ridges of a designated pitch formed on a side surface. The transition part has a tapered shape of which diameter gradually reduces as it separates from the head part along the axial direction, coaxially projects from a tip of the first fixed diameter column shaped part, and has thread ridges of a designated pitch formed on a side surface. The column shaped connecting part has a diameter smaller than the first diameter along the axial direction and coaxially projects from a tip of the transition part. The second fixed diameter column shaped part has a fixed second diameter smaller than the first diameter along the axial direction, coaxially projects from a tip of the column shaped connecting part, and has thread ridges of the designated pitch formed on a side surface. Tops of the thread ridges formed on the side surface of the transition part are cut out. COPYRIGHT: (C)2003,JPO
    • 6. 发明专利
    • bolt
    • 螺栓
    • JP2005180475A
    • 2005-07-07
    • JP2003418059
    • 2003-12-16
    • Aoyama Seisakusho Co Ltd株式会社青山製作所
    • MURASE YOSHIHIROOSAWA TETSUYAOZAWA MITSURU
    • F16B25/04
    • PROBLEM TO BE SOLVED: To provide a bolt which can surely prevent the scoring and seizure with a female screw member by interrupting the screwing when an appropriate screwing posture with respect to the female screw member is not yet achieved. SOLUTION: The bolt 1 has a small diameter guide portion 116 formed at the tip end of its body portion 15. The guide portion 116 has an screw thread 31 having the hand of helix opposite to that of the screw thread 30 formed on a constant diameter portion 115. By this configuration, if the posture of the bolt 1 does not become appropriate by its own weight when the bolt 1 has been inserted into a nut 100, the bolt 1 cannot be screwed into the nut 100 so far as the posture of the bolt 1 is not changed to be suitable for the nut 100. Therefore, it is impossible that the bolt 1 is fitted in the nut 100 in the unsuitable state, such as a tilting state, etc. As a result, the scoring and seizure of the bolt 1 with the nut 100 can be surely prevented. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种螺栓,当不能获得相对于内螺纹部件的适当的拧紧姿态时,可以通过中断旋拧来确保地防止用内螺纹部件进行打分和卡住。 解决方案:螺栓1具有形成在其主体部分15的尖端处的小直径引导部分116.引导部分116具有螺纹31,螺纹线31具有与形成在螺纹30上的螺纹30相反的螺旋针 恒定直径部分115.通过这种构造,当螺栓1已经插入螺母100中时,如果螺栓1的姿态由于其自身重量而不适合,则螺栓1不能拧入螺母100中,只要 螺栓1的姿势没有改变为适合于螺母100.因此,螺栓1不可能在诸如倾斜状态等不适当状态下装配在螺母100中。结果, 可以可靠地防止螺栓1与螺母100的打击和卡住。 版权所有(C)2005,JPO&NCIPI
    • 7. 发明专利
    • Tapping screw
    • 拔丝螺丝
    • JP2005114085A
    • 2005-04-28
    • JP2003350450
    • 2003-10-09
    • Aoyama Seisakusho Co Ltd株式会社青山製作所
    • MIZUNO HIROMICHIOZAWA MITSURUYAMADA KIYONARI
    • F16B25/06F16B25/00F16B33/02
    • F16B25/0031F16B25/0047F16B25/0052
    • PROBLEM TO BE SOLVED: To provide a tapping screw capable of reducing the screwing torque to a mating member and preventing a female screw of a prepared hole peripheral face of the mating member from being easily damaged.
      SOLUTION: As this tapping screw 10 has a screw part 30 having an angle of a screw head of 30°, the screwing torque to the mating member can be reduced, and further a radial component of the force applied to the female screw part of the prepared hole peripheral face from the screw part 30, that is, the force expanding the mating member radially outward can be reduced. Further as a crest part 130 of the screw part 30 has the circular arc shape, the mating member can be reasonably plastically deformed in screwing the tapping screw.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种能够将匹配构件的螺旋扭矩减小到防止配合构件的预定孔周面的内螺纹容易损坏的自攻螺钉。 解决方案:由于该自攻螺钉10具有螺钉头30的角度为30°的螺钉部分30,所以可以减小对配合构件的拧紧扭矩,并且进一步地,施加到内螺纹的力的径向分量 可以减少从螺纹部30准备的孔周面的一部分,即径向向外扩张配合构件的力。 此外,由于螺纹部30的顶部130具有圆弧形状,所以在拧紧自攻螺钉时,配合构件可以合理地塑性变形。 版权所有(C)2005,JPO&NCIPI