JPH064419U - Welded stud bolt - Google Patents

Welded stud bolt

Info

Publication number
JPH064419U
JPH064419U JP388491U JP388491U JPH064419U JP H064419 U JPH064419 U JP H064419U JP 388491 U JP388491 U JP 388491U JP 388491 U JP388491 U JP 388491U JP H064419 U JPH064419 U JP H064419U
Authority
JP
Japan
Prior art keywords
stud bolt
shaft portion
nut
welding
tightening
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
Application number
JP388491U
Other languages
Japanese (ja)
Inventor
能典 岡田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Pop Rivets and Fasteners Ltd
Original Assignee
Nippon Pop Rivets and Fasteners Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Pop Rivets and Fasteners Ltd filed Critical Nippon Pop Rivets and Fasteners Ltd
Priority to JP388491U priority Critical patent/JPH064419U/en
Publication of JPH064419U publication Critical patent/JPH064419U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】 【目的】 溶接によって緩み止めの機能の低下や、ナッ
トの締め付けトルクの増大や、ナットの雌ねじの締め付
け強度の低下を防止した、緩み止め機能付き溶接スタッ
ドボルトを提供する。 【構成】 ほぼ棒状の軸部2の一端に溶接チップ3を有
し、軸部2の外周面にはねじ5が形成され、軸部ねじ5
の緩み止め部7のねじは一定のピッチP1、P2をもっ
て形成されているが、隣接するピッチ長さP1、P2が
相互に違っている。これによって、螺合したナットのね
じ山が、軸部のP1を大きくするように、強く係合し
て、締め付け時のトルクを大きくせずに、締め付け後の
トルクを大きく維持して、安定した強い螺合力を得てい
る。
(57) [Summary] [Purpose] To provide a welding stud bolt with a locking function, which prevents deterioration of the locking function by welding, increase of tightening torque of nut, and decrease of tightening strength of nut internal thread. A welding tip 3 is provided at one end of a substantially rod-shaped shaft portion 2, and a screw 5 is formed on the outer peripheral surface of the shaft portion 2.
The screws of the locking portion 7 are formed with a constant pitch P1 and P2, but the pitch lengths P1 and P2 adjacent to each other are different from each other. As a result, the thread of the screwed nut is strongly engaged so as to increase P1 of the shaft portion, the torque after tightening is not increased, and the torque after tightening is maintained large and stable. Has a strong screwing force.

Description

【考案の詳細な説明】[Detailed description of the device]

【0001】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、溶接スタッドボルトに関し、特に、棒状の軸部の一端に、車体等の 母材に溶接するため、溶接チップを有し、軸部の外周面にはねじが形成された溶 接スタッドボルトに関する。 The present invention relates to a welding stud bolt, and more particularly to a welding stud having a welding tip at one end of a rod-shaped shaft portion for welding to a base material such as a vehicle body and a screw formed on the outer peripheral surface of the shaft portion. Regarding bolts.

【0002】[0002]

【従来の技術】[Prior art]

棒状の軸部の一端に、車体等の母材に溶接するための溶接チップを有し、軸部 の外周面にはねじが形成された溶接スタッドボルトはよく知られている。この溶 接スタッドボルトは色々な用途に使用され、例えばクリップを介してパイプ等を 取付けるのに使用されたり、スタッドボルトのねじを利用してナットを取付けて 他の部材を車体に固定したり、そのスタッドボルトの軸部が車体に電気的に接続 していることから接地用のねじ端子として使用されたりする。 A welding stud bolt having a welding tip for welding to a base material such as a vehicle body at one end of a rod-shaped shaft portion and a screw formed on the outer peripheral surface of the shaft portion is well known. This welding stud bolt is used for various purposes, for example, it is used to attach a pipe or the like through a clip, or the nut of the stud bolt is attached to fix other members to the vehicle body. Since the shaft portion of the stud bolt is electrically connected to the vehicle body, it is used as a ground screw terminal.

【0003】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

かかるスタッドボルトにおいて、車体等に使用される場合にはその振動によっ てナットが緩んでしまうことがある。その螺合したナットの緩みを防止するため 、種々の工夫がなされている。その1つにねじ部分に樹脂をコーティングしたも のがあるが、溶接スタッドボルトでは、その溶接時の熱によって樹脂が熱変化し たり融解によって流れ出したりして、緩み止めの機能が一定しないという欠点が ある。また、ねじピッチを少しずつ増大(または減少)させて、緩み止めの機能 を持たせたものもあるが、ナットの締め付けトルクが徐々にしかも相当に大きく なって締め付け作業に支障を来すことある。更に、スタッドボルトのねじの谷を 浅く形成する方法もあるが、ナットの雌ねじの山を変形させてしまい、このため 、ねじの係合面積が減って締め付け強度が低下するという欠点がある。 When such a stud bolt is used for a vehicle body or the like, the vibration may cause the nut to loosen. Various measures have been taken to prevent the screwed nut from loosening. One of them is that the threaded part is coated with resin, but with welded stud bolts, the resin changes heat due to the heat during welding or flows out due to melting, and the loosening prevention function is not constant. There is. Also, there is a screw pitch that is gradually increased (or decreased) to have a function to prevent loosening, but the tightening torque of the nut may gradually and considerably increase, which may interfere with tightening work. . Further, there is also a method of forming the thread root of the stud bolt to be shallow, but it has the drawback that the thread of the female thread of the nut is deformed, which reduces the engagement area of the thread and lowers the tightening strength.

【0004】 従って、本考案の目的は、溶接によって緩み止めの機能の低下や、ナットの締 め付けトルクの増大や、ナットの雌ねじの締め付け強度の低下を防止した、緩み 止め機能付き溶接スタッドボルトを提供することにある。Therefore, an object of the present invention is to prevent a decrease in the function of the loosening preventive function by welding, an increase in the tightening torque of the nut, and a decrease in the tightening strength of the female screw of the nut. To provide.

【0005】[0005]

【課題を解決するための手段】[Means for Solving the Problems]

かかる目的を達成するため、本考案によれば、ほぼ棒状の軸部の一端に、車体 等の母材に溶接するため、溶接チップを有し、軸部の外周面にはねじが形成され た溶接スタッドボルトであって、軸部の少なくとも一部には、緩み止め部が設け られ、この緩み止め部のねじは一定のピッチをもって形成されているが、隣接す るピッチ長さが違っていることを特徴とする溶接スタッドボルトが提供される。 To achieve this object, according to the present invention, a welding tip is provided at one end of a substantially rod-shaped shaft portion for welding to a base material such as a vehicle body, and a screw is formed on the outer peripheral surface of the shaft portion. A welded stud bolt, in which at least a part of the shaft part has a locking part, and the threads of this locking part are formed with a constant pitch, but the pitch lengths of adjacent pitches are different. A welded stud bolt is provided.

【0006】[0006]

【実施例】【Example】

以下、本考案の実施例について図面を参照しながら説明する。図1及び図2に は、本考案に係る溶接スタッドボルト1が示されている。このスタッドボルト1 は、ほぼ棒状の軸部2と、その一端(上端)に、車体等の母材に溶接するため、 溶接チップ3と、チップ3と軸部2の間に形成されたフランジ4とが一体成形さ れて成る。スタッドボルト1の軸部2の外周面には雄ねじ5が形成されていて、 この雄ねじにナットが螺合するようになている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show a weld stud bolt 1 according to the present invention. The stud bolt 1 has a substantially rod-shaped shaft portion 2 and one end (upper end) thereof welded to a base material such as a vehicle body. Therefore, a welding tip 3 and a flange 4 formed between the tip 3 and the shaft portion 2 are provided. And are integrally molded. A male screw 5 is formed on the outer peripheral surface of the shaft portion 2 of the stud bolt 1, and a nut is screwed to the male screw.

【0007】 本考案においては、軸部2の雄ねじ5の形成されている部分には、通常ねじ部 分6の他に、その少なくとも一部に、緩み止め部7が設けられている。この緩み 止め部7の拡大部分が図2に示されている。図2において明らかなように、この 緩み止め部7のねじは一定のピッチをもって形成されているが、隣接するピッチ 長さP1とP2とが違っている。In the present invention, in the portion of the shaft portion 2 where the male screw 5 is formed, in addition to the normal screw portion 6, at least a portion thereof is provided with a locking portion 7. An enlarged portion of the locking portion 7 is shown in FIG. As is apparent from FIG. 2, the screws of the locking portion 7 are formed with a constant pitch, but the adjacent pitch lengths P1 and P2 are different.

【0008】 なお、このピッチの違いはそれ程大きいものでなくともよい。好ましいのは、 図示のように、各ねじ山を2重フランク8、9及び10、8に形成して、隣接す るねじ山11、12の間では頂部側のフランク10が相互に対向し、他の隣接す るねじ山12、13の間では頂部側のフランク9が相互に対向するように形成さ れる。このように形成することによって、各ねじ山の頂部が、ナットの雌ねじに よってある程度撓められ、螺合時の係合力を強くできる。The difference in pitch does not need to be so large. Preferably, as shown, each thread is formed in double flanks 8, 9 and 10, 8 with the top flank 10 facing each other between adjacent threads 11, 12. Between the other adjacent threads 12 and 13, the flanks 9 on the top side are formed so as to face each other. By forming in this way, the top of each thread is bent to some extent by the female thread of the nut, and the engaging force at the time of screwing can be increased.

【0009】 図3は、溶接スタッドボルト1を車体15に溶接した状態で、取付け部材16 の取付け穴17を軸部2に通してフランジ4に接触させて取付け部材16を車体 15に位置決めし、ナット18を軸部2の雄ねじ5に螺合して締め付ける。ナッ ト18は、最初通常ねじ部分6に螺合して徐々に緩み止め部7に螺入していく。 この螺入によって、図4に図示のように、ナット18のねじ山19は一定ピッチ の単フランジ構造であるので、ボルト軸部2の各ねじ山11、12、13のフラ ンク10の面すなわち短いピッチP1の側のフランク面を撓めるように強く係合 して、その螺合による強度を上げている。In FIG. 3, the welding stud bolt 1 is welded to the vehicle body 15, and the mounting hole 16 of the mounting member 16 is passed through the shaft portion 2 to contact the flange 4 to position the mounting member 16 on the vehicle body 15. The nut 18 is screwed onto the male screw 5 of the shaft portion 2 and tightened. The nut 18 is first screwed into the normal thread portion 6 and then gradually screwed into the loosening prevention portion 7. Due to this screw-in, as shown in FIG. 4, the screw thread 19 of the nut 18 has a single-pitch structure with a constant pitch, so that the surface of the flange 10 of each screw thread 11, 12, 13 of the bolt shaft portion 2, that is, The flank surface on the short pitch P1 side is strongly engaged so as to bend, and the strength due to the screwing is increased.

【0010】[0010]

【考案の効果】[Effect of device]

本考案による溶接スタッドボルトによれば、軸部の緩み止め部のねじは一定の ピッチをもって形成されているが、隣接するピッチ長さが違っているので、通常 のナットによって強く係合するが、締め付けトルクはそれほど増大しないように でき、ナットの雌ねじを変形させることはなく、更に、スタッドボルトの溶接に よっても樹脂のように変質や変形がない。従って、一定の締め付けトルクでナッ トを螺合すれば、安定した強い螺合力が得られる。なお、かかる緩み止め部は、 普通のねじに形成してもよい。 According to the welded stud bolt of the present invention, the screws of the loosening prevention portion of the shaft portion are formed with a constant pitch, but since the adjacent pitch lengths are different, they are strongly engaged by a normal nut. The tightening torque can be set so that it does not increase so much, the internal thread of the nut is not deformed, and the stud bolt welding does not cause deterioration or deformation unlike resin. Therefore, if the nut is screwed with a constant tightening torque, a stable and strong screwing force can be obtained. The loosening prevention portion may be formed as an ordinary screw.

【図面の簡単な説明】[Brief description of drawings]

【図1】本考案に係る溶接スタッドボルトを一部切り欠
いて示す部分正面図である。
FIG. 1 is a partial front view showing a welded stud bolt according to the present invention with a part thereof cut away.

【図2】図1のA部分の拡大図である。FIG. 2 is an enlarged view of a portion A of FIG.

【図3】本考案に係る溶接スタッドボルトを車体に溶接
し、そのボルト軸部に他の部材をナットによって取付け
た様子を示す部分断面図である。
FIG. 3 is a partial cross-sectional view showing a state in which the welded stud bolt according to the present invention is welded to a vehicle body and another member is attached to the bolt shaft portion by a nut.

【図4】図3のねじ部分の螺合の状態を示す拡大断面図
である。
FIG. 4 is an enlarged cross-sectional view showing a screwed state of the screw portion of FIG.

【符号の説明】[Explanation of symbols]

1 溶接スタッドボルト 2 軸部 3 溶接チップ 4 フランジ 5 雄ねじ部 6 通常ねじ部分 7 緩み止め部 8、9、10 フランク 11、12、13 軸部のねじ山 15 車体 16 取付け部材 18 ナット 19 ナットのねじ山 1 Weld stud bolt 2 Shaft part 3 Welding tip 4 Flange 5 Male screw part 6 Normal screw part 7 Loosening prevention part 8, 9, 10 Frank 11, 12, 13 Shaft thread 15 Body 16 Mounting member 18 Nut 19 Nut screw Mountain

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】 ほぼ棒状の軸部の一端に、車体等の母材
に溶接するため、溶接チップを有し、軸部の外周面には
ねじが形成された溶接スタッドボルトにおいて、 軸部の少なくとも一部には、緩み止め部が設けられ、こ
の緩み止め部のねじは一定のピッチをもって形成されて
いるが、隣接するピッチ長さが違っていることを特徴と
する溶接スタッドボルト。
1. A welded stud bolt having a welding tip at one end of a substantially rod-shaped shaft portion for welding to a base material such as a vehicle body, and a screw formed on the outer peripheral surface of the shaft portion. A weld stud bolt, characterized in that at least a portion thereof is provided with a locking portion, and the threads of this locking portion are formed with a constant pitch, but the pitch lengths adjacent to each other are different.
JP388491U 1991-02-05 1991-02-05 Welded stud bolt Pending JPH064419U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP388491U JPH064419U (en) 1991-02-05 1991-02-05 Welded stud bolt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP388491U JPH064419U (en) 1991-02-05 1991-02-05 Welded stud bolt

Publications (1)

Publication Number Publication Date
JPH064419U true JPH064419U (en) 1994-01-21

Family

ID=11569614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP388491U Pending JPH064419U (en) 1991-02-05 1991-02-05 Welded stud bolt

Country Status (1)

Country Link
JP (1) JPH064419U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11117929A (en) * 1997-10-15 1999-04-27 Suzuki Neji Seisakusho:Kk Male screw and screwing structure between male screw and female screw
WO2006013723A1 (en) * 2004-08-06 2006-02-09 Nagoya Industrial Science Research Institute Multi-pitch screw, and method and device for manufacturing multi-pitch screw
JP2016114222A (en) * 2014-12-17 2016-06-23 トヨタ自動車株式会社 Bolt with washer
WO2016171293A1 (en) * 2015-04-23 2016-10-27 주식회사 서울금속 Waterproof screw having anti-loosening function
KR101680208B1 (en) * 2016-03-28 2016-12-07 주식회사 서울금속 Tapping screw capable of for preventing loosening
JP2022110449A (en) * 2021-01-18 2022-07-29 新一 西田 Bolt structure with anti-fatigue and anti-loosening functions, and screw fastener employing bolt structure

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01299773A (en) * 1988-05-25 1989-12-04 Toyota Motor Corp Stud bolt welding method for laminated steel plate

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01299773A (en) * 1988-05-25 1989-12-04 Toyota Motor Corp Stud bolt welding method for laminated steel plate

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11117929A (en) * 1997-10-15 1999-04-27 Suzuki Neji Seisakusho:Kk Male screw and screwing structure between male screw and female screw
WO2006013723A1 (en) * 2004-08-06 2006-02-09 Nagoya Industrial Science Research Institute Multi-pitch screw, and method and device for manufacturing multi-pitch screw
JP2016114222A (en) * 2014-12-17 2016-06-23 トヨタ自動車株式会社 Bolt with washer
WO2016171293A1 (en) * 2015-04-23 2016-10-27 주식회사 서울금속 Waterproof screw having anti-loosening function
KR101680208B1 (en) * 2016-03-28 2016-12-07 주식회사 서울금속 Tapping screw capable of for preventing loosening
JP2022110449A (en) * 2021-01-18 2022-07-29 新一 西田 Bolt structure with anti-fatigue and anti-loosening functions, and screw fastener employing bolt structure

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