JPH09144738A - Fastening device - Google Patents
Fastening deviceInfo
- Publication number
- JPH09144738A JPH09144738A JP29947295A JP29947295A JPH09144738A JP H09144738 A JPH09144738 A JP H09144738A JP 29947295 A JP29947295 A JP 29947295A JP 29947295 A JP29947295 A JP 29947295A JP H09144738 A JPH09144738 A JP H09144738A
- Authority
- JP
- Japan
- Prior art keywords
- nut
- fastened
- male screw
- screwed
- male
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は緩み止め機能を有す
る締結具に関する。TECHNICAL FIELD The present invention relates to a fastener having a locking function.
【０００２】[0002]
【従来の技術】従来、締結具の一例として図３に示すも
のがある。これは、互いに当接させた複数の被締結物
１，１に貫設した貫通孔２に挿通されるねじ棒３の両端
部にねじ形成方向が同一の雄ねじ部３ａ，３ａが形成さ
れ、その両雄ねじ部３ａ，３ａに螺合する一対のナット
４，５がそれぞれ被締結物１，１の側面１ａ，１ｂに圧
接されている。2. Description of the Related Art Conventionally, an example of a fastener is shown in FIG. This is because external thread portions 3a, 3a having the same screw forming direction are formed at both ends of a threaded rod 3 which is inserted into a through hole 2 penetrating a plurality of objects 1, 1 to be fastened to each other. A pair of nuts 4 and 5 that are screwed into the male screw portions 3a and 3a are respectively pressed against the side surfaces 1a and 1b of the objects to be fastened 1,1.
【０００３】上記構成において、被締結物１，１を締結
する場合には、該被締結物１，１の貫通孔２にねじ棒３
を挿通した後、該ねじ棒３の両雄ねじ部３ａ，３ａに螺
合する各ナット４，５にねじ込み方向に締結力Ｆを加え
ればよい。これによって、該各ナット４，５の底面４
ａ，５ａを被締結物１，１の側面１ａ，１ｂに圧接させ
て、その被締結物１，１を締結することができる。In the above structure, when the objects to be fastened 1 and 1 are fastened, the screw rod 3 is inserted into the through hole 2 of the objects to be fastened 1 and 1.
After inserting, the fastening force F may be applied in the screwing direction to each of the nuts 4 and 5 screwed to both the male screw portions 3a of the screw rod 3. As a result, the bottom surface 4 of each nut 4, 5 is
The a, 5a can be brought into pressure contact with the side surfaces 1a, 1b of the objects to be fastened 1, 1 to fasten the objects to be fastened 1, 1.
【０００４】[0004]
【発明が解決しようとする課題】上記従来の構成では、
締結具に長期間にわたって振動や熱変化などが加わって
一方のナット４に締結力Ｆとは逆方向に回転力Ｐがかか
ると、その回転力Ｐにより、一方のナット４がねじ棒３
から抜ける方向に回転されると共に、ねじ棒３が他方の
ナット５から抜ける方向に回転され、これにより、一方
のナット４及びねじ棒３が同じ方向（Ａ，Ａ）に移動し
ようとするため、ナット４，５が緩んで締結状態を維持
することができなくなる。SUMMARY OF THE INVENTION In the above conventional configuration,
When vibration or heat change is applied to the fastener for a long period of time and a rotational force P is applied to the one nut 4 in a direction opposite to the fastening force F, the one rotational force P causes the one nut 4 to move into the threaded rod 3.
As the screw rod 3 is rotated in the direction away from the other nut 5, the one nut 4 and the screw rod 3 try to move in the same direction (A, A). The nuts 4 and 5 become loose and the tightened state cannot be maintained.
【０００５】本発明は、上記問題点に鑑み、緩み止め機
能を有する締結具を提供することを目的としている。In view of the above problems, it is an object of the present invention to provide a fastener having a locking function.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、請求項１記載の発明は、被締結物に貫設した貫通孔
に挿通されるねじ棒の両端部にねじ形成方向が互いに逆
の雄ねじ部が形成され、その一方の雄ねじ部が前記被締
結物の貫通孔に形成した雌ねじ部に螺合され、その他方
の雄ねじ部に螺合するナットが前記被締結部の側面に圧
接されていることを特徴としている。In order to achieve the above-mentioned object, the invention according to claim 1 is such that the screw forming directions are opposite to each other at both ends of a screw rod inserted into a through hole penetrating the object to be fastened. A male screw portion is formed, one of the male screw portions is screwed to a female screw portion formed in the through hole of the object to be fastened, and a nut screwed to the other male screw portion is pressed against the side surface of the fastened portion. It is characterized by being.
【０００７】上記構成において、被締結物を締結する場
合には、ねじ棒の一端部に形成した一方の雄ねじ部を被
締結物の貫通孔に形成した雌ねじ部に螺合させた後、ね
じ棒の他端部に形成した他方の雄ねじ部にナットを螺合
させ、該ナットにねじ込み方向に締結力を加えて、その
ナットを被締結物の側面に圧接させるだけでよい。In the above construction, when the object to be fastened is to be fastened, one male screw portion formed at one end of the threaded rod is screwed into the female screw portion formed in the through hole of the object to be fastened, and then the threaded rod is screwed. It suffices to screw a nut to the other male screw portion formed on the other end portion of the above, apply a fastening force in the screwing direction to the nut, and press the nut against the side surface of the article to be fastened.
【０００８】この場合、ねじ棒の両端部に形成した雄ね
じ部のねじ形成方向が互いに逆であるため、ナットに締
結力とは逆方向に回転力がかかると、その回転力によ
り、ナットがねじ棒の他方の雄ねじ部から抜ける方向に
回転されると共に、ねじ棒の一方の雄ねじ部が被締結物
の雌ねじ部にねじ込む方向に回転され、これにより、ナ
ットとねじ棒とが互い逆方向に移動しようとするため、
そのナットの緩みを阻止することができる。In this case, since the screw forming directions of the male screw portions formed on both ends of the screw rod are opposite to each other, when a rotational force is applied to the nut in a direction opposite to the fastening force, the nut causes the nut to be screwed by the rotational force. The nut and the threaded rod move in opposite directions while being rotated in the direction to come out from the other male threaded portion of the rod, and also to rotate in the direction to screw one male threaded portion of the rod into the female threaded portion of the object to be fastened. To try
It is possible to prevent the nut from loosening.
【０００９】請求項２記載の発明は、被締結物に貫設し
た貫通孔に挿通されるねじ棒の両端部にねじ形成方向が
互いに逆の雄ねじ部が形成され、その両雄ねじ部に螺合
する一対のナットがそれぞれ前記被締結部の側面に圧接
されていることを特徴としている。According to a second aspect of the present invention, male screw portions having screw forming directions opposite to each other are formed at both ends of a threaded rod inserted into a through hole penetrating the object to be fastened, and screwed to both male thread portions. And a pair of nuts are pressed against the side surface of the fastened portion.
【００１０】上記構成において、被締結物を締結する場
合には、被締結物の貫通孔にねじ棒を挿通した後、該ね
じ棒の両雄ねじ部に螺合する各ナットにねじ込み方向に
締結力を加えて、その各ナットを被締結物の側面に圧接
させるだけでよい。In the above structure, when the object to be fastened is to be fastened, the threaded rod is inserted through the through hole of the article to be fastened, and then the fastening force is applied in the screwing direction to the respective nuts screwed to both male screw portions of the threaded rod. In addition, each of the nuts need only be pressed against the side surface of the object to be fastened.
【００１１】この場合、ねじ棒の両端部に形成した雄ね
じ部のねじ形成方向が互いに逆であるため、一方のナッ
トに締結力とは逆方向に回転力がかかると、その回転力
により、その一方のナットがねじ棒の一方の雄ねじ部か
ら抜ける方向に回転されると共に、ねじ棒の他方の雄ね
じ部が他方のナットにねじ込む方向に回転され、これに
より、一方のナットとねじ棒とが互い逆方向に移動しよ
うとするため、その一方のナットの緩みを阻止すること
ができる。In this case, since the screw forming directions of the male screw portions formed at both ends of the screw rod are opposite to each other, when a rotating force is applied to one nut in a direction opposite to the fastening force, the rotating force causes One of the nuts is rotated in the direction of coming out of one of the male threads of the threaded rod, and the other of the male threads of the threaded rod is rotated in the direction of being screwed into the other nut. Since it tries to move in the opposite direction, loosening of one of the nuts can be prevented.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１は本発明の実施の一形態であ
る締結具を示すものであって、互いに当接された２枚
（１枚または３枚以上であってもよい）の被締結物１，
１に貫設した貫通孔２に挿通されるねじ棒１３の両端部
にねじ形成方向が互いに逆の雄ねじ部１３ａ，１３ｂが
形成され、その一方の雄ねじ部１３ａが一方の被締結物
１の貫通孔２に形成した雌ねじ部１６に螺合され、その
他方の雄ねじ部１３ｂに螺合するナット１４の底面１４
ａが他方の被締結物１の側面１ａに圧接されている。な
お、１７は一方の雄ねじ部１３ａに螺合して、その底面
１７ａが一方の被締結物１の側面１ｂに圧接されたロッ
クナットである。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a fastener according to an embodiment of the present invention, in which two (1 or 3 or more) objects to be fastened 1, which are in contact with each other.
1 is formed with male screw portions 13a and 13b whose screw forming directions are opposite to each other at both ends of a threaded rod 13 which is inserted into a through hole 2 which is penetrated through, and one of the male screw portions 13a penetrates one to-be-fastened object 1. The bottom surface 14 of the nut 14 that is screwed into the female screw portion 16 formed in the hole 2 and that is screwed into the other male screw portion 13b.
a is pressed against the side surface 1a of the other article 1 to be fastened. Reference numeral 17 is a lock nut that is screwed into one of the male screw portions 13a, and the bottom surface 17a thereof is in pressure contact with the side surface 1b of the one object to be fastened 1.
【００１３】上記構成において、被締結物１，１を締結
する場合には、ねじ棒１３の一方の雄ねじ部１３ａを雌
ねじ部１６に螺合させた後、ねじ棒１３の他方の雄ねじ
部１３ｂにナット１４を螺合させ、該ナット１４にねじ
込み方向に締結力Ｆを加えて、そのナット１４の底面１
４ａを他方の被締結物１の側面１ａに圧接させ、また、
ねじ棒１３の一方の雄ねじ部１３ａにロックナット１７
を螺合させ、該ロックナット１７にめじ込み方向に締結
力Ｆを加えて、そのロックナット１７の底面１７ａを一
方の被締結物１の側面１ｂに圧接させるだけでよい。In the above structure, when the objects to be fastened 1 and 1 are to be fastened, one male screw portion 13a of the screw rod 13 is screwed into the female screw portion 16 and then the other male screw portion 13b of the screw rod 13 is fitted. The nut 14 is screwed together, and a fastening force F is applied to the nut 14 in the screwing direction so that the bottom surface 1 of the nut 14 is
4a is pressed against the side surface 1a of the other article to be fastened 1, and
The lock nut 17 is attached to one of the male screw portions 13 a of the screw rod 13.
It suffices that the lock nut 17 is screwed together, a fastening force F is applied to the lock nut 17 in the fitting direction, and the bottom surface 17a of the lock nut 17 is brought into pressure contact with the side surface 1b of the article 1 to be fastened.
【００１４】この場合、ねじ棒１３の両端部に形成した
雄ねじ部１３ａ，１３ｂのねじ形成方向が互いに逆であ
るため、ナット１４に締結力Ｆとは逆方向に回転力Ｐが
かかると、その回転力Ｐにより、ナット１４がねじ棒１
３の他方の雄ねじ部１３ｂから抜ける方向に回転される
と共に、ねじ棒１３の一方の雄ねじ部１３ａが雌ねじ部
１６にねじ込む方向に回転され、これによって、ナット
１４とねじ棒１３とが互い逆方向（Ａ，Ｂ）に移動しよ
うとするため、そのナット１４の緩みを阻止することが
できる。In this case, since the screw forming directions of the male screw portions 13a and 13b formed at both ends of the screw rod 13 are opposite to each other, when the nut 14 receives the rotational force P in the direction opposite to the fastening force F, the The rotating force P causes the nut 14 to move the screw rod 1
3 is rotated in the direction of coming out from the other male screw portion 13b of 3 and one of the male screw portions 13a of the screw rod 13 is rotated in the direction of being screwed into the female screw portion 16, whereby the nut 14 and the screw rod 13 are in opposite directions. Since the nut 14 is trying to move to (A, B), it is possible to prevent the nut 14 from loosening.
【００１５】図２は本発明の実施の他の形態である締結
具を示すものであって、互いに当接された２枚（１枚ま
たは３枚以上であってもよい）の被締結物１，１に貫設
した貫通孔２に挿通されるボルト（ねじ棒）１８のボル
ト頭部１８Ａ側の基端部と先端部とにねじ形成方向が互
いに逆の雄ねじ部１８ａ，１８ｂが形成され、その両雄
ねじ部１８ａ，１８ｂに螺合する一対のナット１９，２
０の底面１９ａ，２０ａがそれぞれ被締結物１，１の側
面１ａ，１ｂに圧接されている。FIG. 2 shows a fastener according to another embodiment of the present invention, in which two (1 or 3 or more) objects to be fastened 1 are in contact with each other. , 1 are formed with male screw portions 18a and 18b whose screw forming directions are opposite to each other at the base end portion and the tip end portion on the bolt head 18A side of the bolt (screw rod) 18 inserted through the through hole 2 formed through A pair of nuts 19 and 2 screwed to the male screw portions 18a and 18b.
Bottom surfaces 19a and 20a of 0 are pressed against side surfaces 1a and 1b of the objects to be fastened 1 and 1, respectively.
【００１６】上記構成において、被締結物１，１を締結
する場合には、ボルト１８の基端部の雄ねじ部１８ａに
ナット１９を螺合させた後、そのボルト１８を被締結物
１，１の貫通孔２に挿通し、該ボルト１８の先端部の雄
ねじ部１８ｂにナット２０を螺合させ、そのナット２０
にねじ込み方向に締結力Ｆを加えて、各ナット１９，２
０の底面１９ａ，２０ａを被締結物１，１の側面１ａ，
１ｂに圧接させるだけでよい。In the above structure, when the objects to be fastened 1 and 1 are fastened, after the nut 19 is screwed into the male screw portion 18a at the base end of the bolt 18, the bolt 18 is fastened to the objects to be fastened 1,1. Through the through-hole 2 of the bolt 18, and the nut 20 is screwed into the male screw portion 18b at the tip of the bolt 18.
Tightening force F in the screwing direction to each nut 19, 2
The bottom surfaces 19a and 20a of the
It is only necessary to press it into contact with 1b.
【００１７】この場合、ボルト１８の基端部と先端部と
に形成した雄ねじ部１８ａ，１８ｂのねじ形成方向が互
いに逆であるため、先端部側雄ねじ部１８ｂに螺合する
ナット２０に締結力Ｆとは逆方向に回転力Ｐがかかる
と、その回転力Ｐにより、該ナット２０が雄ねじ部１８
ｂから抜ける方向に回転されると共に、ねじ棒１３の基
端部側雄ねじ部１８ａがナット１９にねじ込む方向に回
転され、これにより、ナット２０とボルト１８とが互い
逆方向（Ａ，Ｂ）に移動しようとするため、そのナット
２０の緩みを阻止することができる。In this case, since the screw forming directions of the male screw portions 18a and 18b formed at the base end portion and the tip end portion of the bolt 18 are opposite to each other, the fastening force is applied to the nut 20 screwed to the tip end side male screw portion 18b. When a rotational force P is applied in the direction opposite to F, the rotational force P causes the nut 20 to
While being rotated in the direction away from b, the male screw portion 18a on the base end side of the screw rod 13 is rotated in the direction of screwing into the nut 19, whereby the nut 20 and the bolt 18 are in opposite directions (A, B). Since the nut 20 is moved, it is possible to prevent the nut 20 from loosening.
【００１８】図２に示す実施の他の形態では、ボルト１
８を用いたが、それに代えて、図１に示すねじ棒１３を
用いてもよい。In another embodiment shown in FIG. 2, the bolt 1
8 is used, the screw rod 13 shown in FIG. 1 may be used instead.
【００１９】[0019]
【発明の効果】請求項１記載の発明によれば、被締結物
の貫通孔に挿通されるねじ棒の両端部にねじ形成方向が
互いに逆の雄ねじ部が形成され、その一方の雄ねじ部を
前記貫通孔に形成した雌ねじ部に螺合させると共に、そ
の他方の雄ねじ部に螺合するナットを被締結物に側面に
圧接させているため、前記ナットに締結力とは逆方向に
回転力がかかると、その回転力により、ナットがねじ棒
の他方の雄ねじ部から抜ける方向に回転されると共に、
ねじ棒の一方の雄ねじ部が被締結物の雌ねじ部にねじ込
む方向に回転され、これにより、ナットとねじ棒とが互
い逆方向に移動しようとするため、そのナットの緩みを
阻止することができる。According to the first aspect of the present invention, male threaded portions having screw forming directions opposite to each other are formed at both ends of the threaded rod inserted into the through hole of the object to be fastened, and one of the male threaded portions is formed. Since the nut that is screwed into the female screw portion formed in the through hole and is screwed into the other male screw portion is pressed against the side surface of the object to be fastened, the nut has a rotational force in the direction opposite to the fastening force. As a result, the rotation of the nut causes the nut to rotate in the direction of coming out from the other male thread portion of the threaded rod,
One of the male threaded portions of the threaded rod is rotated in a direction to be screwed into the female threaded portion of the object to be fastened, whereby the nut and the threaded rod try to move in opposite directions, so that the loosening of the nut can be prevented. .
【００２０】請求項２記載の発明によれば、被締結物の
貫通孔に挿通されるねじ棒の両端部にねじ形成方向が互
いに逆の雄ねじ部が形成され、その両雄ねじ部に螺合す
る一対のナットを被締結物の側面に圧接させているた
め、一方のナットに締結力とは逆方向に回転力がかかる
と、その回転力により、その一方のナットがねじ棒の一
方の雄ねじ部から抜ける方向に回転されると共に、ねじ
棒の他方の雄ねじ部が他方のナットにねじ込む方向に回
転され、これにより、一方のナットとねじ棒とが互い逆
方向に移動しようとするため、その一方のナットの緩み
を阻止することができる。According to the second aspect of the present invention, male screw portions having screw forming directions opposite to each other are formed at both ends of the threaded rod inserted into the through hole of the object to be fastened, and the male screw portions are screwed together. Since a pair of nuts are pressed against the side surface of the object to be fastened, when one nut receives a rotational force in the direction opposite to the fastening force, that rotational force causes that one nut to become one of the male threaded portions of the threaded rod. While the screw rod is rotated in the direction away from the other, the other male thread portion of the screw rod is rotated in the direction of screwing into the other nut, whereby one nut and the screw rod try to move in opposite directions, so that one It is possible to prevent the nut from loosening.
【図１】本発明の実施の一形態である締結具を示す縦断
面図である。FIG. 1 is a vertical cross-sectional view showing a fastener according to an embodiment of the present invention.
【図２】本発明の実施の他の形態である締結具を示す縦
断面図である。FIG. 2 is a vertical sectional view showing a fastener according to another embodiment of the present invention.
【図３】従来例を示す縦断面図である。FIG. 3 is a vertical sectional view showing a conventional example.
１ 被締結物 １ａ 被締結物の側面 １ｂ 被締結物の側面 ２ 貫通孔 １３ ねじ棒 １３ａ 雄ねじ部 １３ｂ 雄ねじ部 １４ ナット １６ 雌ねじ部 １８ ボルト（ねじ棒） １８ａ 雄ねじ部 １８ｂ 雄ねじ部 １９ ナット ２０ ナット DESCRIPTION OF SYMBOLS 1 Object to be fastened 1a Side surface of fastened object 1b Side surface of fastened object 2 Through hole 13 Screw rod 13a Male screw portion 13b Male screw portion 14 Nut 16 Female screw portion 18 Bolt (screw rod) 18a Male screw portion 18b Male screw portion 19 Nut 20 Nut
Claims (2)
ねじ棒の両端部にねじ形成方向が互いに逆の雄ねじ部が
形成され、その一方の雄ねじ部が前記被締結物の貫通孔
に形成した雌ねじ部に螺合され、その他方の雄ねじ部に
螺合するナットが前記被締結部の側面に圧接されている
ことを特徴とする締結具。1. A male threaded portion having screw forming directions opposite to each other is formed at both ends of a threaded rod inserted into a through hole penetrating the article to be fastened, and one of the male threaded portions is a through hole of the article to be fastened. A fastener which is threadedly engaged with a female threaded portion formed on the above and is threadedly engaged with the other male threaded portion is pressed against the side surface of the portion to be fastened.
ねじ棒の両端部にねじ形成方向が互いに逆の雄ねじ部が
形成され、その両雄ねじ部に螺合する一対のナットがそ
れぞれ前記被締結部の側面に圧接されていることを特徴
とする締結具。2. A male threaded portion having screw forming directions opposite to each other is formed at both ends of a threaded rod inserted through a through hole penetrating the object to be fastened, and a pair of nuts screwed into the male threaded portions are respectively formed. A fastener, wherein the fastener is pressed against a side surface of the fastened portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29947295A JPH09144738A (en) | 1995-11-17 | 1995-11-17 | Fastening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29947295A JPH09144738A (en) | 1995-11-17 | 1995-11-17 | Fastening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09144738A true JPH09144738A (en) | 1997-06-03 |
Family
ID=17873025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29947295A Pending JPH09144738A (en) | 1995-11-17 | 1995-11-17 | Fastening device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09144738A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011002022A (en) * | 2009-06-18 | 2011-01-06 | Kaneshin:Kk | Bolt |
| JP2013032820A (en) * | 2011-08-02 | 2013-02-14 | Narihiro Hagiwara | Fastening bolt |
| CN108730307A (en) * | 2018-06-26 | 2018-11-02 | 周焱春 | A kind of bolt connection piece for the connection of house steel plate |
| WO2021046202A1 (en) * | 2019-09-05 | 2021-03-11 | J. Ray Mcdermott, S.A. | Protective sleeve nut for bolted connection of two mating components |
| USD918026S1 (en) | 2019-09-05 | 2021-05-04 | J. Ray Mcdermott, S.A. | Protective sleeve nut |
| JP2021127803A (en) * | 2020-02-14 | 2021-09-02 | 株式会社青山製作所 | Fastening method |
-
1995
- 1995-11-17 JP JP29947295A patent/JPH09144738A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011002022A (en) * | 2009-06-18 | 2011-01-06 | Kaneshin:Kk | Bolt |
| JP2013032820A (en) * | 2011-08-02 | 2013-02-14 | Narihiro Hagiwara | Fastening bolt |
| CN108730307A (en) * | 2018-06-26 | 2018-11-02 | 周焱春 | A kind of bolt connection piece for the connection of house steel plate |
| WO2021046202A1 (en) * | 2019-09-05 | 2021-03-11 | J. Ray Mcdermott, S.A. | Protective sleeve nut for bolted connection of two mating components |
| USD918026S1 (en) | 2019-09-05 | 2021-05-04 | J. Ray Mcdermott, S.A. | Protective sleeve nut |
| JP2021127803A (en) * | 2020-02-14 | 2021-09-02 | 株式会社青山製作所 | Fastening method |
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