JP2012017834A - Cap nut - Google Patents

Cap nut Download PDF

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JP2012017834A
JP2012017834A JP2010156967A JP2010156967A JP2012017834A JP 2012017834 A JP2012017834 A JP 2012017834A JP 2010156967 A JP2010156967 A JP 2010156967A JP 2010156967 A JP2010156967 A JP 2010156967A JP 2012017834 A JP2012017834 A JP 2012017834A
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cap
nut
fixed
male screw
face
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JP5451548B2 (en
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Shigenobu Hamanaka
重信 濱中
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Hamanaka Nut Manufacturing Co Ltd
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Hamanaka Nut Manufacturing Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a cap nut that can quickly cope with the case that protrusion lengths of bolt axes are different from one another, and can be used for a cap and a nut which are formed of synthetic resins.SOLUTION: A circular flange (11C) is integrally formed at the seat-side face of the nut (11), a male screw (11B) is formed at the external peripheral face of a flange, the cap (12) is formed into a shape which wholly covers the nut, a female thread (12A) is formed at the lower end internal face of the cap, and the cap is fixed to the nut by making the female thread of the cap and the male screw of the nut seat-face side flange screwed to each other. Preferably, the cap may be formed into a spherical shape, and the lower end of the cap may be pressed against a seat face of a member or a washer when fixed to the nut. Furthermore, the cap may be formed of a synthetic resin material.

Description

本発明は袋ナットに関し、特にボルト軸部の突出長さが異なる場合に迅速に対応でき、しかも合成樹脂製のキャップにも適用できるようにした袋ナットに関する。   The present invention relates to a cap nut, and more particularly to a cap nut that can quickly respond to a case where the projecting length of a bolt shaft portion is different and that can be applied to a cap made of a synthetic resin.

部材を締結する場合、部材をボルトの頭部とナットによって挟み、ボルト・ナットを相対的に螺進させて締め付ける方式がよく採用されているが、ボルト軸部がナット頂面からから突き出していると、見栄えが悪くなるばかりでなく、雨水などに晒されると、銹などの発生が懸念される。   When fastening a member, a method is often adopted in which the member is sandwiched between a bolt head and a nut, and the bolt and nut are relatively screwed and tightened, but the bolt shaft portion protrudes from the nut top surface. Not only does it look bad, but if it is exposed to rainwater, there are concerns about the occurrence of drought.

そこで、ボルト軸部を隠すようにした２ピース方式の袋ナットが知られている。例えば、キャップを別体に製造してナットに溶接によって固定するようにした袋ナット（特許文献１、特許文献２）、あるいは別体のキャップをナットに嵌め合わせあるいはかしめて固定するようにした袋ナット（特許文献３、特許文献４）、が提案されている。   Therefore, a two-piece type cap nut that hides the bolt shaft portion is known. For example, a cap nut manufactured separately and fixed to the nut by welding (Patent Document 1, Patent Document 2), or a bag fitted with a separate cap fitted to the nut or crimped Nuts (Patent Document 3 and Patent Document 4) have been proposed.

特開平０２−１９５００９号公報Japanese Patent Laid-Open No. 02-195009 実開平０７−１０５４０号公報Japanese Utility Model Publication No. 07-10540 特開昭５８−４２８１８号公報JP 58-42818 実開昭５５−７３６０８号公報Japanese Utility Model Publication No. 55-73608

しかし、特許文献１、２記載の袋ナットではナットから突き出るボルト軸部の長さが締結の状況によって異なり、キャップの奥行きが浅くて使用できないことがあり、キャップ奥行きの異なる種々の袋ナットを用意する必要があった。また、溶接によって固定を行う関係上、材質が溶接可能な金属材料に限られ、合成樹脂材料製のキャップには適用できない。   However, in the cap nuts described in Patent Documents 1 and 2, the length of the bolt shaft protruding from the nut varies depending on the fastening condition, and the cap depth may be too shallow to be used. Various cap nuts with different cap depths are available. There was a need to do. In addition, because of fixing by welding, the material is limited to a metal material that can be welded, and cannot be applied to a cap made of a synthetic resin material.

他方、 特許文献３、４記載の袋ナットではかしめによって固定を行うと、材質が塑性変形な金属材料に限られ、合成樹脂材料製のキャップには適用できないが、嵌合によって固定を行うと、合成樹脂材料製のキャップに適用できる。また、締結現場においてキャップをナットに嵌合することができるので、奥行きの異なるキャップを用意しておけば、ボルト軸部の突出長さが異なる場合に迅速に対応できるものの、キャップに衝撃が加わると、キャップが外れてしまうおそれがある。   On the other hand, when the cap nuts described in Patent Documents 3 and 4 are fixed by caulking, the material is limited to a metal material that is plastically deformed and cannot be applied to a cap made of a synthetic resin material. Applicable to caps made of synthetic resin. In addition, since the cap can be fitted to the nut at the fastening site, if a cap with a different depth is prepared, it is possible to respond quickly when the protruding length of the bolt shaft part is different, but an impact is applied to the cap. And there is a risk that the cap will come off.

本発明はかかる問題点に鑑み、ボルト軸部の突出長さが異なる場合に迅速に対応でき、しかも合成樹脂製のキャップにも適用できるようにした袋ナットを提供することを課題とする。   In view of such a problem, an object of the present invention is to provide a cap nut that can quickly cope with a case where the projecting length of the bolt shaft portion is different and that can be applied to a cap made of synthetic resin.

そこで、本発明に係る袋ナットは、ナット座面側に円形のフランジ部が一体に形成され、該フランジ部の外周面には雄ねじが形成されている一方、キャップがナットの全体を覆う形状をなし、キャップの下端部内面には雌ねじが形成され、キャップの雌ねじが上記ナット座面側フランジの雄ねじと螺合されることによってキャップがナットに固定されていることを特徴とする。   Accordingly, the cap nut according to the present invention has a shape in which a circular flange portion is integrally formed on the nut seat surface side and a male screw is formed on the outer peripheral surface of the flange portion, while the cap covers the entire nut. None, an internal thread is formed on the inner surface of the lower end of the cap, and the cap is fixed to the nut by screwing the internal thread of the cap with the external thread of the nut seat surface side flange.

本発明の特徴の１つはナットにキャップを被せ、キャップ下端内面の雌ねじをナット座面側にフランジ部の雄ねじに螺合させるようにした点にある。   One of the features of the present invention is that the nut is covered with a cap, and the internal thread on the inner surface of the lower end of the cap is screwed onto the external thread of the flange portion on the nut seat surface side.

これにより、締結現場においてキャップをナットに固定することができ、奥行きの異なるキャップを用意するだけで、ボルト軸部の突出長さが異なる場合に迅速に対応することができ、しかも衝撃が加わってもキャップが外れることがない。   As a result, the cap can be fixed to the nut at the fastening site, and by simply preparing a cap with a different depth, it is possible to respond quickly when the projecting length of the bolt shaft part is different, and an impact is applied. Even the cap will not come off.

また、締結現場においてキャップをナットに螺合させることができるので、金属材料だけでなく、合成樹脂材料製のキャップにも適用できる。   In addition, since the cap can be screwed onto the nut at the fastening site, it can be applied not only to a metal material but also to a cap made of a synthetic resin material.

また、キャップ及びボルト頭部を球面状（半楕円球面状を含む）に形成すると、キャップをナットに固定した後はボルト・ナットの締結を簡単に弛めることができず、ボルト・ナットの盗難防止に効果がある。   Also, if the cap and bolt head are formed in a spherical shape (including a semi-elliptical spherical shape), the bolt and nut cannot be easily loosened after the cap is fixed to the nut, preventing the bolt and nut from being stolen. Is effective.

この場合、キャップの下端を部材又は座金の座面に強く押しつけることができるようにすると、キャップを弛め難くなるので、盗難防止の効果をアップできる。   In this case, if the lower end of the cap can be strongly pressed against the member or the seating surface of the washer, it is difficult to loosen the cap, so the effect of preventing theft can be improved.

本発明に係る袋ナットの好ましい実施形態を示す全体構成図である。It is a whole lineblock diagram showing a desirable embodiment of a cap nut concerning the present invention. 上記実施形態を用いた締結構造を示す断面図である。It is sectional drawing which shows the fastening structure using the said embodiment.

以下、本発明を図面に示す具体例に基づいて詳細に説明する。図１及び図２は本発明に係る袋ナットの好ましい実施形態を示す。図において、袋ナット１０は金属材料製のナット１１と合成樹脂材料製のキャップ１２とから構成されている。   Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 and 2 show a preferred embodiment of a cap nut according to the present invention. In the figure, the cap nut 10 is composed of a nut 11 made of a metal material and a cap 12 made of a synthetic resin material.

ナット１１には貫通穴が穿設されて内面には雄ねじ１１Ｄが形成され、又ナット本体１１Ａの座面側に円板状のフランジ部１１Ｃが一体に形成され、フランジ部１１Ｃの外周面には雄ねじ１１Ｂが形成されている。   A through hole is formed in the nut 11 and a male screw 11D is formed on the inner surface. A disc-shaped flange portion 11C is integrally formed on the seat surface side of the nut body 11A. A male screw 11B is formed.

他方、キャップ１２は合成樹脂材料を用いてナット１１の全体を収容し得るとともに、ナット１１への固定時に下端が座面と当接し得る形状、例えば楕円の上半部の断面形状を有する球面状（半楕円球面状）に製造され、キャップ１２の下端部内面には上記ナット１１の雄ねじ１１Ｂと螺合する雌ねじ１２Ａが形成されている。   On the other hand, the cap 12 can accommodate the entirety of the nut 11 using a synthetic resin material, and has a shape in which the lower end can come into contact with the seat surface when fixed to the nut 11, for example, a spherical shape having a cross-sectional shape of the upper half of an ellipse. The cap 12 has a female screw 12 </ b> A that is engaged with the male screw 11 </ b> B of the nut 11.

部材１５Ａ、１５Ｂを締結する場合、部材１５Ａ、１５Ｂの挿通穴に座金１４を介してボルト軸部１３Ｂを挿通し、ボルト軸部１３Ｂの雄ねじにナット１１の雌ねじ１１Ｄを螺合させ、レンチなどの適当な工具を使用して、ボルト頭部１３Ａ側の座金１４とナット１１のフランジ部１１Ｃとの間で締め付ける。   When fastening the members 15A and 15B, the bolt shaft portion 13B is inserted into the insertion holes of the members 15A and 15B via the washer 14, and the female screw 11D of the nut 11 is screwed into the male screw of the bolt shaft portion 13B. Using a suitable tool, tighten between the washer 14 on the bolt head 13 </ b> A side and the flange 11 </ b> C of the nut 11.

その後、キャップ１２をナット１１に被せ、雌ねじ１２Ａを雄ねじ１１Ｂに嵌め、キャップ１２の下端が部材１５Ａの座面につよく押しつけられるまで螺進させ、キャップ１２をナット１１に固定する。キャップ１２の操作はキャップ１２にピッタリと密着し得る専用の工具を用いる。   Thereafter, the cap 12 is put on the nut 11, the female screw 12 </ b> A is fitted to the male screw 11 </ b> B, and the cap 12 is fixed to the nut 11 by being screwed until the lower end of the cap 12 is pressed firmly against the seating surface of the member 15 </ b> A. The operation of the cap 12 uses a dedicated tool that can be brought into close contact with the cap 12.

以上のように、締結後にキャップ１２をナット１１に螺合することができるので、奥行きの異なるキャップ１２を用意するだけで、ボルト軸部１３Ｂの突出長さが異なる場合に迅速に対応することができる。しかも、キャップ１２を螺合によってナット１１の座面側フランジ部１１Ｃに固定しているので、衝撃が加わってもキャップ１２が外れることはない。   As described above, since the cap 12 can be screwed into the nut 11 after fastening, it is possible to quickly respond to the case where the projecting length of the bolt shaft portion 13B is different simply by preparing the cap 12 having a different depth. it can. Moreover, since the cap 12 is fixed to the seat surface side flange portion 11C of the nut 11 by screwing, the cap 12 does not come off even when an impact is applied.

また、ボルトの頭部１３Ａを球面状にすると、ボルト１３とナット１１との間で部材１５Ａ、１５Ｂを締結し、キャップ１２をナット１１に固定すると、通常の工具ではボルト１３・ナット１１の締結を弛めることは難しく、盗難を防止することができる。   Further, when the bolt head portion 13A is spherical, members 15A and 15B are fastened between the bolt 13 and the nut 11, and when the cap 12 is fixed to the nut 11, the bolt 13 and the nut 11 are fastened with a normal tool. It is difficult to loosen and prevent theft.

なお、上記の例では合成樹脂材料製のキャップと金属材料製のナットの場合について説明したが、金属材料製のキャップと金属材料製のナットの場合についても同様に適用できる。また、通常のボルトではなく、アンカーボルトとナットとの締結にも同様に適用できる。   In the above example, a case of a cap made of a synthetic resin material and a nut made of a metal material has been described. However, the present invention can be similarly applied to a case of a cap made of a metal material and a nut made of a metal material. Further, the present invention can be similarly applied to fastening of an anchor bolt and a nut instead of a normal bolt.

１０ 袋ナット
１１ ナット
１１Ａ ナット本体
１１Ｂ 雄ねじ
１１Ｃ フランジ部
１２ キャップ
１２Ａ 雌ねじ
１３ ボルト
10 Cap nut 11 Nut 11A Nut body 11B Male thread 11C Flange 12 Cap 12A Female thread 13 Bolt

Claims (4)

ナット（１１）座面側に円形のフランジ部（１１Ｃ）が一体に形成され、該フランジ部（１１Ｃ）の外周面には雄ねじ（１１Ｂ）が形成されている一方、
キャップ（１２）がナット（１１）の全体を覆う形状をなし、キャップ（１２）の下端部内面には雌ねじ（１２Ａ）が形成され、キャップ（１２）の雌ねじ（１２Ａ）が上記ナット（１１）座面側フランジ（１１Ｃ）の雄ねじ（１１Ｂ）と螺合されることによってキャップ（１２）がナット（１１）に固定されていることを特徴とする袋ナット。 A circular flange portion (11C) is integrally formed on the seat surface side of the nut (11), and a male screw (11B) is formed on the outer peripheral surface of the flange portion (11C).
The cap (12) has a shape that covers the entire nut (11), and an internal thread (12A) is formed on the inner surface of the lower end of the cap (12), and the internal thread (12A) of the cap (12) is the nut (11). A cap nut, wherein the cap (12) is fixed to the nut (11) by being screwed with the male screw (11B) of the seat surface side flange (11C). キャップ（１２）が球面状をなしている請求項１記載の袋ナット。   The cap nut according to claim 1, wherein the cap (12) has a spherical shape. キャップ（１２）はナット（１１）への固定時に下端が部材又は座金の座面に押しつけられるようになっている請求項２記載の袋ナット。   3. A cap nut according to claim 2, wherein the cap (12) has a lower end pressed against a seating surface of a member or a washer when the cap (12) is fixed to the nut (11). 上記キャップ（１２）が合成樹脂材料を用いて形成されている請求項１記載の袋ナット。
The cap nut according to claim 1, wherein the cap (12) is formed using a synthetic resin material.
JP2010156967A 2010-07-09 2010-07-09 Cap nut Expired - Fee Related JP5451548B2 (en)

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JP2012017834A true JP2012017834A (en) 2012-01-26
JP5451548B2 JP5451548B2 (en) 2014-03-26

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55166917U (en) * 1979-05-19 1980-12-01
JPS57193694U (en) * 1981-05-30 1982-12-08
JPS6158724U (en) * 1984-09-25 1986-04-19
JPS63146217U (en) * 1987-03-16 1988-09-27
JPH01163207U (en) * 1988-05-06 1989-11-14
JPH0710540U (en) * 1993-07-30 1995-02-14 智 岡墻 Loose cap nut

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55166917U (en) * 1979-05-19 1980-12-01
JPS57193694U (en) * 1981-05-30 1982-12-08
JPS6158724U (en) * 1984-09-25 1986-04-19
JPS63146217U (en) * 1987-03-16 1988-09-27
JPH01163207U (en) * 1988-05-06 1989-11-14
JPH0710540U (en) * 1993-07-30 1995-02-14 智 岡墻 Loose cap nut

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