JP5436315B2 - One side bolt - Google Patents
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- JP5436315B2 JP5436315B2 JP2010092212A JP2010092212A JP5436315B2 JP 5436315 B2 JP5436315 B2 JP 5436315B2 JP 2010092212 A JP2010092212 A JP 2010092212A JP 2010092212 A JP2010092212 A JP 2010092212A JP 5436315 B2 JP5436315 B2 JP 5436315B2
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Description
本発明はワンサイドボルトに関し、特に被接合部材の片側からの作業で締め付けが完了でき、被接合部材の裏側スペースが小さい、危険を伴う、ボルト・ナットの装着ができないなどの場合に適用できるようにしたワンサイドボルトに関する。 The present invention relates to a one-side bolt, and can be applied particularly when tightening can be completed by work from one side of a member to be joined, the space on the back side of the member to be joined is small, dangerous, and bolts and nuts cannot be attached. Related to the one-side bolt.
ワンサイドボルトは盲ボルトや片側締込みリベット等とも呼ばれる軸状の盲止め具であり、各種の用途に使用されている。例えば、閉断面形状の角形鋼管柱等を無溶接で接合する場合にワンサイドボルトを使用すると、通常の高力ボルトと異なり、ジョイントボックスに雌ねじを切ったり、裏ナット溶接を行う必要がなく、接合の作業性に優れている。 The one-side bolt is a shaft-shaped blind stopper called a blind bolt or a one-side tightening rivet, and is used for various applications. For example, if one-side bolts are used when joining square steel pipe columns with closed cross-sections without welding, unlike ordinary high-strength bolts, there is no need to cut female threads in the joint box or perform back nut welding. Excellent workability in joining.
従来この種のワンサイドボルトとして、ボルト軸部にスリーブを外嵌し、このボルトをその頭部から被接合部材の穴に被接合部材の表側から裏側に向けて貫通させ、ボルト軸部にナットを螺合し、ナットを回転させるトルクの反力をボルト端部に設けたセレション部で受けて締め付けることによってボルト頭部と被接合部材との間でスリーブを鍔状に変形させ、ボルトを抜け止めしたものが知られている（特許文献１、特許文献２）。
Conventionally, as a one-side bolt of this type, a sleeve is externally fitted to the bolt shaft portion, and this bolt is passed from the head to the hole of the member to be joined from the front side to the back side of the member to be joined. The sleeve is deformed into a hook shape between the bolt head and the member to be joined by receiving and tightening the reaction force of the torque that rotates the nut with the selection part provided at the bolt end, and the bolt is removed. What is stopped is known (
しかし、従来のワンサイドボルトは被接合部材の厚さに比してボルト頭部が被接合部材の裏側に大きく突き出てしまい、被接合部材の裏側にスペースが少ない場合には適用し難い。 However, the conventional one-side bolt is difficult to apply when the bolt head protrudes greatly on the back side of the member to be joined and the space on the back side of the member to be joined is small compared to the thickness of the member to be joined.
これに対し、ボルトの頭部裏面をテーパー状に形成し、スリーブの先端部をボルト頭部裏面によって拡開してボルトを抜け止めするようにしたワンサイドボルトが提案されている（特許文献３）。 On the other hand, a one-side bolt is proposed in which the back surface of the head of the bolt is formed in a taper shape, and the tip of the sleeve is expanded by the back surface of the bolt head to prevent the bolt from coming off (Patent Document 3). ).
しかし、特許文献３記載のワンサイドボルトではボルト頭部裏面をテーパー状に形成する必要があるので、ボルトが頭部裏面のテーパーの分だけ被接合部材から突き出てしまい、スペース的に適用し難いことがあった。 However, in the one-side bolt described in Patent Document 3, it is necessary to form the back surface of the bolt head in a tapered shape, so that the bolt protrudes from the member to be joined by the amount of taper on the back surface of the head, and is difficult to apply in space. There was a thing.
本発明はかかる問題点に鑑み、被接合部材裏側のスペースが小さい場合にも確実に適用できるようにしたワンサイドボルトを提供することを課題とする。 In view of such problems, an object of the present invention is to provide a one-side bolt that can be reliably applied even when a space on the back side of a member to be joined is small.
そこで、本発明に係るワンサイドボルトは、頭部と雄ねじが形成された軸部との間にスリーブ内面と接する外径の変形ガイド部が形成され、頭部と変形ガイド部との間にアール状の変形ガイド面が形成され、上記ボルト軸部にはトルクシェアー型のセレション部が形成されたボルトと、該ボルトの変形ガイド部と軸部に外嵌されるスリーブと、ボルトの軸部に螺合されるナットとを備え、上記ボルト及びスリーブがボルト頭部から被接合部材の穴に挿通された状態において上記ナットを回転させるトルクの反力をセレション部で受けて締め付けを行なうことにより、上記ボルト軸部が被接合部材の穴内に引っ張られ、上記スリーブ先端部分の内方への変形が上記ボルトの変形ガイド部によって規制され、かつ上記ボルト頭部直下の変形ガイド面によって外方に塑性変形されることによって上記スリーブが座金状に拡開されるようになしたことを特徴とする。 Therefore, in the one-side bolt according to the present invention, a deformed guide portion having an outer diameter that is in contact with the inner surface of the sleeve is formed between the head portion and the shaft portion on which the male screw is formed. The bolt shaft portion is formed with a torque shear type selection portion, a deformation guide portion of the bolt, a sleeve fitted on the shaft portion, and a bolt shaft portion. A nut that is screwed together, and the bolt and sleeve are tightened by receiving the reaction force of the torque that rotates the nut in the state where the bolt and the sleeve are inserted from the bolt head into the hole of the member to be joined, The bolt shaft portion is pulled into the hole of the member to be joined, the inward deformation of the sleeve tip is regulated by the deformation guide portion of the bolt, and the deformation guide just below the bolt head The sleeve by being plastically deformed, characterized in that none as unfolded into a washer-shaped outwardly by.
本発明の特徴の１つはボルトの変形ガイド部によってスリーブの内方への変形を規制しつつ、ボルト頭部直下の変形ガイド面によってスリーブ先端部を外方に塑性変形させることによって座金状に拡開させるようにした点にある。 One of the features of the present invention is that the deformation of the sleeve inward is regulated by the deformation guide portion of the bolt, while the tip of the sleeve is plastically deformed outward by the deformation guide surface directly under the bolt head to form a washer. It is in the point made to expand.
これにより、スリーブが座金として機能し、接合強度はスリーブの剪断強度分だけ増えるので、アップできる。 As a result, the sleeve functions as a washer, and the bonding strength is increased by the shear strength of the sleeve.
スリーブ先端部は、座金のように平板状に拡開してもよく、又図３の２点鎖線で示すように断面の傾斜が残るように拡開してもよい。 The sleeve front end may be expanded like a flat plate like a washer, or may be expanded so that the cross-sectional inclination remains as indicated by a two-dot chain line in FIG.
また、トルクシェア型のボルトを採用すると、ボルトの締付けトルクが所定の大きさに達すると、ボルト軸部のセレション部が破断し、締付けトルクを一定にできる。 Further, when a torque share type bolt is employed, when the bolt tightening torque reaches a predetermined magnitude, the selection portion of the bolt shaft portion is broken, and the tightening torque can be made constant.
スリーブの材質は特に限定されないが、焼きならしたＳＣＭ４３５など、ＨＲＢ８７．５〜９８．４の範囲内の硬度を有する材質が好ましいことが確認された。また、スリーブの肉厚とボルト頭部直下の変形ガイド面のアールがスリーブの塑性変形に関係していることが分かった。すなわち、スリーブは、その肉厚を外径寸法の１／６〜１／９の範囲内の寸法とし、ボルトの頭部直下の変形ガイド面をスリーブの肉厚よりも大きなアールとするのが好ましい。 The material of the sleeve is not particularly limited, but it has been confirmed that a material having a hardness in the range of HRB 87.5 to 98.4, such as normalized SCM435, is preferable. It was also found that the thickness of the sleeve and the radius of the deformation guide surface directly under the bolt head are related to the plastic deformation of the sleeve. That is, it is preferable that the sleeve has a wall thickness within a range of 1/6 to 1/9 of the outer diameter, and the deformation guide surface just below the head of the bolt has a radius that is larger than the wall thickness of the sleeve. .
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ないし図３は本発明に係るワンサイドボルトの好ましい実施形態を示す。図において、ワンサイドボルトはボルト１０、スリーブ１１、座金１２及びナット１３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 to 3 show a preferred embodiment of a one-side bolt according to the present invention. In the figure, the one-side bolt is composed of a
ボルト１０は軸部１０Ｃに雄ねじが形成され、軸部１０Ｃの先端部にはセレション部１０Ｄが形成され、セレション部１０Ｄと軸部１０Ｃとの間には環状の溝１０Ｅが形成され、セレション部１０Ｄに規定の締付けトルクが作用したときに溝１０Ｅで破断されるようになっている。
The
また、ボルト頭部１０Ａとボルト軸部１０Ｃとの間にはスリーブ１１内面と接するような外径の変形ガイド部１０Ｂが形成され、ボルト頭部１０Ａと変形ガイド部１０Ｂの間にはアール状の変形ガイド面が形成されている。
Further, a deformation guide portion 10B having an outer diameter so as to contact the inner surface of the
スリーブ１１は円筒状をなし、スリーブ１１の先端面は径方向内側に向けて低くなるように、例えば軸線に対して４５°の角度で傾斜した傾斜面に形成されている。なお、逆の傾斜面、即ち径方向外側に向けて低くなるように傾斜した傾斜面としても同様の作用効果を奏することが確認された。
The
ボルト１０の変形ガイド部１０Ｂと軸部１０Ｃにはスリーブ１１が外嵌され、ボルト１０の軸部１０Ｃには座金１２を介してナット１３が螺合され、スリーブ１１の先端はボルト頭部１０Ａの裏面に当接されている。
A
こうしてワンサイドボルトが組み立てられると、被接合部材１４Ａ、１４Ｂの穴に表側から裏側に向けてボルト頭部１０Ａを差し込んで挿通させ、座金１２を被接合部材１４Ｂに当接させる。
When the one-side bolt is assembled in this way, the bolt head 10A is inserted and inserted through the holes of the members to be joined 14A and 14B from the front side to the back side, and the
次に、ナット１３を公知の工具で保持し、ボルト１０のセレション部１０Ｄに公知の締付け工具を嵌め、ナット１３を回転させるトルクの反力をセレション部１０Ｄで受け、締付けを行なう。
Next, the
すると、ボルト頭部１０Ａが被接合部材１４Ａ、１４Ｂの穴内に向けて引っ張られるが、スリーブ１１は内面がボルト１０の変形ガイド部１０Ｂと当たっているので、特許文献１、２に記載のワンサイドボルトのようなスリーブ１１の内方への変形が規制され、しかもスリーブ１１の先端がボルト１０の頭部１０Ａ直下の変形ガイド面によって外方の塑性変形がガイドされるので、スリーブ１１は図３の１点鎖線及び２点鎖線で示すようにボルト頭部１０Ａによって平坦な姿勢に向けて次第に拡開される。
Then, the bolt head portion 10A is pulled into the holes of the members to be joined 14A and 14B. However, since the inner surface of the
ボルト１０の締付けトルクが規定の大きさになると、セレション部１０Ｄが溝１０Ｅから破断し、それ以上の締め付けができなくなる。このとき、スリーブ１１は締付けトルクの大きさによって、実線で示すように平板状に拡開されることもあり、あるいは２点鎖線で示すように平板となる直前の傾斜した姿勢となることもある。
When the tightening torque of the
こうしてスリーブ１１の先端部が拡開されると、ボルト頭部１０Ａは被接合部材１４Ａ、１４Ｂの穴を抜けることができず、被接合部材１４Ａ、１４Ｂは確実に接合される。
When the distal end portion of the
硬度ＨＲＣ３３、頭部外径２２．２ｍｍ、頭部直下の変形ガイド面を３ｒとしたハイテンボルトＭ１６を用い、硬度ＨＲＢ８７．５〜８８、外径２０ｍｍ、肉厚３ｍｍのＳＵＳ３０４製のスリーブを用い、図３に示される締め付けを行った。 Using a high tension bolt M16 having a hardness HRC33, a head outer diameter of 22.2 mm, and a deformation guide surface directly under the head of 3r, a hardness HRB of 87.5 to 88, an outer diameter of 20 mm, and a wall thickness of 3 mm, a sleeve made of SUS304, The tightening shown in FIG. 3 was performed.
硬度ＨＲＣ３３、頭部外径２２．２ｍｍ、頭部直下の変形ガイド面を５ｒとしたハイテンボルトＭ１６を用いた以外、実施例１と同様に締め付けを行った。 Tightening was performed in the same manner as in Example 1 except that the high tension bolt M16 having a hardness HRC33, a head outer diameter of 22.2 mm, and a deformation guide surface immediately below the head of 5r was used.
外径２０ｍｍ、肉厚３ｍｍのＳＣＭ４３５製のスリーブを焼きならして硬度ＨＲＢ９７．５〜９８．４として用いた以外、実施例２と同様に締め付けを行った。
比較例１
Tightening was performed in the same manner as in Example 2 except that a sleeve made of SCM435 having an outer diameter of 20 mm and a wall thickness of 3 mm was normalized and used as a hardness HRB of 97.5 to 98.4.
Comparative Example 1
硬度ＨＲＣ３３、頭部外径２２．２ｍｍ、頭部直下の変形ガイド面を３ｒとしたハイテンボルトＭ１６を用いた以外、実施例３と同様に締め付けを行った。
比較例２
Tightening was performed in the same manner as in Example 3 except that the high tension bolt M16 having a hardness HRC33, a head outer diameter of 22.2 mm, and a deformation guide surface directly under the head of 3r was used.
Comparative Example 2
外径２０ｍｍ、肉厚３ｍｍのＳＣＭ４３５製のスリーブを焼き入れ焼き戻しして硬度ＨＲＢ１０８〜１０９として用いた以外、比較例１と同様に締め付けを行った。 Tightening was performed in the same manner as in Comparative Example 1 except that a sleeve made of SCM435 having an outer diameter of 20 mm and a wall thickness of 3 mm was tempered and used as the hardness HRB108-109.
比較例１、２はいずれも締め付け途中でスリーブが十分に拡開せず、締結不可能であったのに対し、実施例１〜３はいずれも締結が可能で、特に実施例２では約２トンの押込み荷重、実施例３の場合には約９トンの押込み荷重が得られた。 In Comparative Examples 1 and 2, the sleeve did not expand sufficiently during tightening and could not be fastened, whereas in Examples 1 to 3, all were fastened. Indentation load of tons, in the case of Example 3, an indentation load of about 9 tons was obtained.
以上のことから、スリーズは焼きならしたＳＣＭ４３５など、ＨＲＢ８７．５〜９８．４の範囲内の硬度を有し、スリーブの肉厚は外径寸法の１／６〜１／９の範囲内の寸法とし、ボルトの頭部直下の変形ガイド面はスリーブの肉厚よりも大きなアールとするのが好ましいことが確認された。 From the above, Slys has a hardness in the range of HRB 87.5 to 98.4, such as normalized SCM435, and the thickness of the sleeve is a dimension in the range of 1/6 to 1/9 of the outer diameter. It was confirmed that it is preferable that the deformation guide surface immediately below the head of the bolt is rounded larger than the thickness of the sleeve.
１０ ボルト
１０Ａ 頭部
１０Ｂ 変形ガイド部
１０Ｃ 軸部
１０Ｄ セレション部
１１ スリーブ
１３ ナット
10 Bolt 10A Head 10B Deformation guide part 10C Shaft part
Claims (1)
該ボルト（１０）の変形ガイド部（１０Ｂ）と軸部（１０Ｃ）に外嵌され、その肉厚が外径寸法の１／６〜１／９の範囲内の寸法で、硬度がＨＲＢ８７．５〜９８．４の範囲内の硬度の円筒状のスリーブ（１１）と、
ボルト（１０）の軸部（１０Ｃ）に螺合されるナット（１３）を備え、
上記ボルト（１０）及びスリーブ（１１）がボルト頭部（１０Ａ）から被接合部材（１４Ａ、１４Ｂ）の穴に挿通された状態において上記ナット（１３）を回転させるトルクの反力をセレション部（１０Ｄ）で受けて締め付けを行なうことにより、上記ボルト軸部（１０Ｃ）が被接合部材（１４Ａ、１４Ｂ）の穴内に引っ張られ、上記スリーブ（１１）先端部分の内方への変形が上記ボルト（１０）の変形ガイド部（１０Ｂ）によって規制され、かつ上記ボルト頭部（１０Ａ）直下の変形ガイド面によって外方に塑性変形されることによって上記スリーブ（１１）が平板座金状に拡開され得るようになしたことを特徴とするワンサイドボルト。 A deformed guide portion (10B) having an outer diameter in contact with the inner surface of the sleeve is formed between the head portion (10A) and the shaft portion (10C) on which the male screw is formed, and the head portion (10A) and the guide portion (10B) A bolt (10) in which a rounded deformation guide surface larger than the thickness of the sleeve (11) is formed, and a torque share type selection portion (10D) is formed on the bolt shaft portion (10C),
The bolt (10) is externally fitted to the deformation guide part (10B) and the shaft part (10C), and the thickness thereof is within a range of 1/6 to 1/9 of the outer diameter, and the hardness is HRB87.5. A cylindrical sleeve (11) having a hardness in the range of ~ 98.4 ;
A nut (13) screwed into the shaft (10C) of the bolt (10);
In the state where the bolt (10) and the sleeve (11) are inserted from the bolt head (10A) into the holes of the members to be joined (14A, 14B), the reaction force of the torque that rotates the nut (13) is selected ( 10D), the bolt shaft portion (10C) is pulled into the hole of the member to be joined (14A, 14B), and the sleeve (11) tip portion is deformed inwardly by the bolt ( The sleeve (11) can be expanded into a flat washer shape by being restricted by the deformation guide portion (10B) of 10) and being plastically deformed outward by the deformation guide surface directly below the bolt head (10A). A one-side bolt characterized by
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010092212A JP5436315B2 (en) | 2010-04-13 | 2010-04-13 | One side bolt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010092212A JP5436315B2 (en) | 2010-04-13 | 2010-04-13 | One side bolt |
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| Publication Number | Publication Date |
|---|---|
| JP2011220032A JP2011220032A (en) | 2011-11-04 |
| JP5436315B2 true JP5436315B2 (en) | 2014-03-05 |
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| KR101641332B1 (en) * | 2014-10-31 | 2016-07-20 | 한전산업개발 주식회사 | Fixing device for liner in chute |
| JP6508824B2 (en) * | 2015-05-18 | 2019-05-08 | 株式会社ＮｅｊｉＬａｗ | Fastening device |
| JP6508825B2 (en) * | 2015-05-18 | 2019-05-08 | 株式会社ＮｅｊｉＬａｗ | Fastening device |
| CN106499098B (en) * | 2016-11-01 | 2017-08-01 | 佛山市奥美达人造板材幕墙配件有限公司 | The high-altitude curtain wall system and curtain wall construction method of a kind of building board |
| CN106351370B (en) * | 2016-11-01 | 2017-09-26 | 佛山市奥美达人造板材幕墙配件有限公司 | A kind of ceramic wafer erector and installation method for the unstressed formula of high-altitude curtain wall |
| CN108443285A (en) * | 2018-03-29 | 2018-08-24 | 贵州精立航太科技有限公司 | A kind of self-plugging rivet of band auxiliary riveting gasket |
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| JPS4615846Y1 (en) * | 1967-02-13 | 1971-06-02 | ||
| JPS5492014U (en) * | 1977-12-13 | 1979-06-29 | ||
| US5603592A (en) * | 1994-10-03 | 1997-02-18 | Huck International, Inc. | High strength blind bolt with uniform high clamp over an extended grip range |
| JP3212887B2 (en) * | 1995-11-10 | 2001-09-25 | アルプス精工株式会社 | Building blind bolts |
| DE19905041A1 (en) * | 1999-02-08 | 2000-08-10 | Profil Verbindungstechnik Gmbh | Functionaries |
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