JPH0211907A - Stud bolt - Google Patents
Stud boltInfo
- Publication number
- JPH0211907A JPH0211907A JP16293188A JP16293188A JPH0211907A JP H0211907 A JPH0211907 A JP H0211907A JP 16293188 A JP16293188 A JP 16293188A JP 16293188 A JP16293188 A JP 16293188A JP H0211907 A JPH0211907 A JP H0211907A
- Authority
- JP
- Japan
- Prior art keywords
- stud bolt
- dia
- thread
- rod
- stud
- 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.)
- Granted
Links
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Compressor (AREA)
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
発明の目的
［産業上の利用分野］
本発明は、棒材の両端に螺子を形成したスタッドボルト
に関する。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention [Field of Industrial Application] The present invention relates to a stud bolt having threads formed at both ends of a bar.
［従来の技術］
従来、丸棒材の両端にねじが切られたスタッドボルトは
、その一端を予め機体等に植え込んで置き、固定する部
分にバカ穴を空けてシートと共に填めてナツトで締付け
て用いている。[Prior art] Conventionally, stud bolts, which have threads cut on both ends of a round bar, are made by first implanting one end into the aircraft body, making a hole in the part to be fixed, inserting it together with the seat, and tightening it with a nut. I am using it.
［発明が解決しようとする課題］
しかしながら、このようにして用いられるスタッドボル
トに対しても、機械の軽量化、特に自動型などの輸送用
機械に使用される部品の軽量化に伴って、軽くて、製品
の製造上の歩留りの良いものが望まれていた。この点を
改良するスタッドボルトとして両側のねじ部に挟まれた
円柱部を三角柱とし、その三角柱の外接円の直径がスタ
ッドボルトの呼び径と等しく形成したものが考えられる
。[Problems to be Solved by the Invention] However, the stud bolts used in this way are becoming lighter and lighter due to the lighter weight of machines, especially the lighter parts used in transportation machines such as automatic types. Therefore, a product with a high manufacturing yield was desired. As a stud bolt to improve this point, it is possible to use a triangular column as the cylindrical portion sandwiched between the threaded portions on both sides, and the diameter of the circumscribed circle of the triangular column is equal to the nominal diameter of the stud bolt.
しかし、このようなスタッドボルトを使用したとき強い
締付はトルクが働くと三角柱の両端部が物体に喰い込ん
でしまい耐強度性に欠けるという課題がある。However, when such a stud bolt is used, there is a problem in that when torque is applied to the stud bolt, both ends of the triangular prism dig into the object, resulting in a lack of strength.
本発明は、上記課題を解決することを目的としてなされ
、耐強度性を維持するスタッドボルトを提案するもので
ある。The present invention was made to solve the above problems, and proposes a stud bolt that maintains strength.
発明の構成
かかる目的を達成する本発明の構成について以下説明す
る。Configuration of the Invention The configuration of the present invention that achieves the above object will be described below.
［課題を解決するための手段］
本発明のスタッドポルトは、
棒材の両端に螺子を形成したスタッドボルトであって、
上記両端の螺子形成部と該螺子形成部に挟まれた棒状部
との略境界部に、該螺子の谷径より大きな係止突部を該
境界部外周に沿って形成すると共に、該境界部以外の棒
状部には、その外径が上記螺子の外径より小さな部位を
形成したことを要旨とする。[Means for Solving the Problems] The stud port of the present invention is a stud bolt in which threads are formed at both ends of a bar material, and comprises a threaded portion at both ends and a rod-shaped portion sandwiched between the threaded portions. A locking protrusion larger than the root diameter of the screw is formed approximately at the boundary along the outer periphery of the boundary, and a rod-shaped portion other than the boundary has a portion whose outer diameter is smaller than the outer diameter of the screw. The main point is that it has been formed.
［作用］
上記構成を有する本発明のスタッドボルトは、螺子形成
部と棒状部との境界に係止突部が形成されているから、
従来のスタッドボルトと同様に使用される。しかも、本
発明のスタッドボルトは、棒状部にその外径が螺子の外
径より小さい部位が設けられているから、全体として軽
量化がはかられる。[Function] Since the stud bolt of the present invention having the above configuration has a locking protrusion formed at the boundary between the thread forming part and the rod-shaped part,
Used in the same way as traditional stud bolts. Moreover, since the stud bolt of the present invention has a portion in the rod-shaped portion whose outer diameter is smaller than the outer diameter of the screw, the overall weight of the stud bolt can be reduced.
［実施例］
以上説明した本発明の構成を一層明らかにする為に、次
に本発明の好適な実施例について説明する。本発明の第
１実施例のスタッドポルトコは、第１図（Ａ）の正面図
、第１図（Ｂ）の側面図に示すように、両端のねじ部３
ａ、３ｂと中央の円柱部５とからなっている。中央の円
柱部５は、ねじ部３ａ、３ｂの外径よりも細く、その両
端のねじ部３ａ、３ｂとの境界に、軸線と直角にそのス
タッドボルト１の呼び径より大きい所定の径からなるつ
ば状の環状突条帯７ａ、７ｂが設けられている。第１実
施例のスタッドボルト１は、冷間圧造によって丸棒の線
材から両端部の面取りを行い、その部材の両端及び中央
部をそれぞれ所定の径にしぼったブランクを作り、これ
にプレートローリングによるねじ転造によりねじを加工
して成形する。[Examples] In order to further clarify the configuration of the present invention described above, preferred embodiments of the present invention will be described next. As shown in the front view of FIG. 1(A) and the side view of FIG. 1(B), the stud portco of the first embodiment of the present invention has threaded portions 3 at both ends.
It consists of a, 3b and a central cylindrical part 5. The central cylindrical part 5 is thinner than the outer diameter of the threaded parts 3a and 3b, and has a predetermined diameter larger than the nominal diameter of the stud bolt 1 perpendicular to the axis at the boundary with the threaded parts 3a and 3b at both ends. Flange-shaped annular protruding strips 7a and 7b are provided. The stud bolt 1 of the first embodiment is produced by chamfering both ends of a round wire rod by cold heading, reducing both ends and the center of the member to a predetermined diameter, and then plate-rolling the blank. Threads are processed and formed by thread rolling.
このようにして加工・成形された第１実施例のスタッド
ボルト１は、機械本体等にねじ込んだとき、ねじ部３ａ
、３ｂと円柱部５の境に設けられた環状突条帯７ａ、７
ｂのいずれか一方により機械本体に係止するように作用
する。従って、第１実施例のスタッドボルト１は、円柱
部５が機械本体等に喰い込まないという優れた効果があ
る。第１実施例のスタッドボルト１は、円柱部５が、ね
じ部３ａ、３ｂの外径よりも細く形成されていることか
ら従来のスタッドボルトに比べて軽いという効果がある
。また、第１実施例のスタッドボルト１は、加工・成形
が精度よく簡易にできることから製品製造上の歩留りが
よいという効果がある。When the stud bolt 1 of the first embodiment processed and formed in this way is screwed into a machine body etc., the threaded portion 3a
, 3b and the annular protruding strips 7a, 7 provided at the boundaries of the columnar part 5.
Either one of b acts to lock onto the machine body. Therefore, the stud bolt 1 of the first embodiment has the excellent effect that the cylindrical portion 5 does not dig into the machine body or the like. The stud bolt 1 of the first embodiment has the effect of being lighter than conventional stud bolts because the columnar part 5 is formed to be thinner than the outer diameter of the threaded parts 3a and 3b. In addition, the stud bolt 1 of the first embodiment can be easily processed and formed with high precision, so that it has the effect of increasing the yield in product manufacturing.
本発明の第２実施例のスタッドボルト１１は、第２図（
Ａ＞の正面図、第２図（Ｂ）の側面図に示すように第１
実施例のスタッドボルト１と同様にねじ部１３ａ、１３
ｂと円柱部１５とからなっている。中央の円柱部１５は
、ねじ部１３ａ、１３ｂの外径より細く、その外周面上
に軸線に対して直角につば状の環状突条帯１７が任意の
数だけ形成されている。その環状突条帯１７の外径は、
スタッドボルト１１の呼び径より大きい所定の径らなっ
ている。A stud bolt 11 according to a second embodiment of the present invention is shown in FIG.
As shown in the front view of A> and the side view of Fig. 2(B),
Similar to the stud bolt 1 of the embodiment, the threaded portions 13a, 13
b and a cylindrical portion 15. The central cylindrical portion 15 is thinner than the outer diameter of the threaded portions 13a, 13b, and has an arbitrary number of collar-shaped annular protrusions 17 formed on its outer peripheral surface at right angles to the axis. The outer diameter of the annular protruding band 17 is
It has a predetermined diameter larger than the nominal diameter of the stud bolt 11.
第２実施例のスタッドボルト１１は、第１実施例のスタ
ッドボルト１と同様に加工・形成される。The stud bolt 11 of the second embodiment is processed and formed in the same manner as the stud bolt 1 of the first embodiment.
このようにして加工・形成された第２実施例のスタッド
ボルト１１は、円柱部１５の外周面上に軸線に対して直
角につば状の環状突条帯１７が任意の数だけ形成されて
いることから、第１実施例のスタッドボルト１と同様の
作用・効果を示す上に、円柱部１５に挿入された物体が
移動しない。その結果、物体が強固に保持されるという
効果がある。The stud bolt 11 of the second embodiment processed and formed in this manner has an arbitrary number of rib-shaped annular protrusions 17 formed on the outer peripheral surface of the cylindrical portion 15 at right angles to the axis. Therefore, in addition to exhibiting the same functions and effects as the stud bolt 1 of the first embodiment, the object inserted into the cylindrical portion 15 does not move. As a result, there is an effect that the object is firmly held.
本発明の第３実施例のスタッドボルト２１は、第３図（
Ａ）の正面図、第３図（Ｂ）の側面図に示すように、第
１実施例のスタッドボルト１と同様にねじ部２３ａ、２
３ｂと円柱部２５とからなっている。中央の円柱部２５
は、ねじ部２３ａ。A stud bolt 21 according to a third embodiment of the present invention is shown in FIG.
As shown in the front view of FIG. 3A and the side view of FIG.
3b and a cylindrical portion 25. Central columnar part 25
is the threaded portion 23a.
２３ｂの外径より細く、その外周面上に軸線に対して平
行な方向に任意の数の突条帯２７が形成され、軸線に対
して直角、に突条帯２７の頂部を結ぶ仮想円の径がスタ
ッドボルト２１の呼び径より大きい所定の径からなって
いる。23b, an arbitrary number of protruding strips 27 are formed on the outer peripheral surface in a direction parallel to the axis, and an imaginary circle connecting the tops of the protruding strips 27 at right angles to the axis is formed. The stud bolt 21 has a predetermined diameter larger than the nominal diameter of the stud bolt 21.
第３実施例のスタッドボルト２１は、第１実施例のスタ
ッドボルト１と同様に加工・形成される。The stud bolt 21 of the third embodiment is processed and formed in the same manner as the stud bolt 1 of the first embodiment.
このようにして加工・形成された第３実施例のスタッド
ボルト２１は、第４図に示すように一方のねじ部２３ａ
を予め機体３９に植え込んで冒き、固定する物体４１に
バカ穴４３を空けて支持具４５と共に填めて他方のねじ
部２３ｂをナツト４７で締めつけて固定している。The stud bolt 21 of the third embodiment processed and formed in this way has one threaded portion 23a as shown in FIG.
is implanted in the fuselage body 39 in advance, a hole 43 is made in the object 41 to be fixed, the support tool 45 is inserted into the object 41, and the other threaded part 23b is tightened with a nut 47 to fix it.
第３実施例のスタッドボルト２１は、軸線に対して平行
な方向に任意の数の突条帯２７が形成されていることか
ら、その円柱部２５におけるそれぞれ突条帯２７は、軸
方向に対しては、外周上に並んだ突起となる。その頂点
を結んだ円の径が、スタッドボルト２１の呼び径より大
きいことから第２実施例のスタッドボルト１１と同様の
作用・効果を示す上に第１．第２実施例のスタッドボル
ト１，１１に比べて応力が集中し難く耐強度性に富むと
いう効果がある。Since the stud bolt 21 of the third embodiment has an arbitrary number of protruding stripes 27 formed in a direction parallel to the axis, each protruding strip 27 in the cylindrical portion 25 is formed in a direction parallel to the axis. This results in protrusions lined up on the outer periphery. Since the diameter of the circle connecting the vertices is larger than the nominal diameter of the stud bolt 21, it exhibits the same function and effect as the stud bolt 11 of the second embodiment, and the first embodiment. Compared to the stud bolts 1 and 11 of the second embodiment, stress is less likely to concentrate and strength is higher.
尚、第１〜第３実施例のスタッドボルトは、円柱部の突
条帯の外径がねじ部の外径より大きい所定の径であるが
、ねじ部の外径と同じ径であってもよい。In addition, in the stud bolts of the first to third embodiments, the outer diameter of the protruding strip of the cylindrical part is a predetermined diameter larger than the outer diameter of the threaded part, but even if it is the same diameter as the outer diameter of the threaded part. good.
発明の効果
以上詳述したように本発明のスタッドボルトは、螺子形
成部と棒状部との略境界部に螺子の谷径より大きな係止
突部が形成され、係止突部以外の棒状部には、その外径
が螺子の外径より小さい部位が形成されている。従って
、螺子に螺着した物体に棒状部が喰い込むこともなく耐
強度性に富み物体を固定すると共に製品が軽量化される
という効果がある。更に、製品の歩留りを良りよく確保
できるという効果がめる。Effects of the Invention As detailed above, the stud bolt of the present invention has a locking protrusion larger than the root diameter of the screw formed at the approximate boundary between the thread forming part and the rod-shaped part, and the rod-shaped part other than the locking protrusion. is formed with a portion whose outer diameter is smaller than the outer diameter of the screw. Therefore, the rod-shaped portion does not bite into the object screwed onto the screw, and has the advantage of being highly durable, fixing the object, and reducing the weight of the product. Furthermore, the effect is that the yield of the product can be ensured well.
第１図（Ａ＞、（Ｂ）は、本発明の第１実施例のスタッ
ドボルトを示す図、第２図は、第２実施例のスタッドボ
ルトを示す図、第３図は、第３実施例のスタッドボルト
を示す図、第４図は、同実例のスタッドボルトの応用例
を示す図である。
１．１１．２１・・・スタッドボルト
３ａ、３ｂ、１３ａ、１３ｂ、２３ａ、２３ｂ。
・・・ねじ部
５．１５．２５・・・円柱部
７ａ、７ｂ、１７．２７・・・突条帯1 (A>, (B) are diagrams showing a stud bolt according to a first embodiment of the present invention, FIG. 2 is a diagram showing a stud bolt according to a second embodiment, and FIG. 3 is a diagram showing a stud bolt according to a third embodiment of the present invention. Figure 4 is a diagram showing an application example of the stud bolt of the example. 1.11.21... Stud bolts 3a, 3b, 13a, 13b, 23a, 23b. ...Threaded part 5.15.25...Cylindrical part 7a, 7b, 17.27...Protrusion band
Claims (1)
て、 上記両端の螺子形成部と該螺子形成部に挟まれた棒状部
との略境界部に、該螺子の谷径より大きな係止突部を該
境界部外周に沿つて形成すると共に、該境界部以外の棒
状部には、その外径が上記螺子の外径より小さな部位を
形成したスタッドボルト。[Scope of Claims] 1. A stud bolt in which threads are formed at both ends of a bar, wherein a valley of the thread is provided at the approximate boundary between the thread-forming portions at both ends and the rod-shaped portion sandwiched between the thread-forming portions. A stud bolt in which a locking protrusion larger than the diameter is formed along the outer periphery of the boundary portion, and a portion of the rod-shaped portion other than the boundary portion has an outer diameter smaller than the outer diameter of the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16293188A JPH0211907A (en) | 1988-06-30 | 1988-06-30 | Stud bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16293188A JPH0211907A (en) | 1988-06-30 | 1988-06-30 | Stud bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0211907A true JPH0211907A (en) | 1990-01-17 |
| JPH0437289B2 JPH0437289B2 (en) | 1992-06-18 |
Family
ID=15763956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16293188A Granted JPH0211907A (en) | 1988-06-30 | 1988-06-30 | Stud bolt |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0211907A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312895A (en) * | 2011-08-24 | 2012-01-11 | 成都科盛石油科技有限公司 | Double-end connecting piece for oil exploitation field |
| KR101523050B1 (en) * | 2010-07-12 | 2015-05-22 | 닝보 방다 인텔리전트 파킹 시스템 컴퍼니, 리미티드 | Unconventional bolt |
-
1988
- 1988-06-30 JP JP16293188A patent/JPH0211907A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101523050B1 (en) * | 2010-07-12 | 2015-05-22 | 닝보 방다 인텔리전트 파킹 시스템 컴퍼니, 리미티드 | Unconventional bolt |
| CN102312895A (en) * | 2011-08-24 | 2012-01-11 | 成都科盛石油科技有限公司 | Double-end connecting piece for oil exploitation field |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0437289B2 (en) | 1992-06-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |