JPH07158627A - Looseness preventing screw - Google Patents

Looseness preventing screw

Info

Publication number
JPH07158627A
JPH07158627A JP30447993A JP30447993A JPH07158627A JP H07158627 A JPH07158627 A JP H07158627A JP 30447993 A JP30447993 A JP 30447993A JP 30447993 A JP30447993 A JP 30447993A JP H07158627 A JPH07158627 A JP H07158627A
Authority
JP
Japan
Prior art keywords
screw
male screw
looseness
looseness preventing
loosening
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
JP30447993A
Other languages
Japanese (ja)
Inventor
Jiro Kihara
次郎 木原
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP30447993A priority Critical patent/JPH07158627A/en
Publication of JPH07158627A publication Critical patent/JPH07158627A/en
Pending legal-status Critical Current

Links

Landscapes

  • Wire Processing (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

PURPOSE:To provide a looseness preventing screw without the generation of looseness even under continuous mechanical-thermal vibration and impact after fastening. CONSTITUTION:A looseness preventing screw is formed into such structure as to have a deforming part 1 and a fine uneven part 2 at the thread part of a male screw 3, and the looseness preventing effect is improved by the spring force of the former and the loosening side frictional force increase of the latter. In the case of the deforming part of the male screw 3 and the fine unevenness being worn to lower this effect by the repetition of clamping/removal, the male screw 3 is replaced with a new screw to cope with this situation easily.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は宇宙産業に於ける締結用
ネジ部品に関し、緩み防止効果を期待される緩み防止ネ
ジに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastening screw part in the space industry, and relates to a loosening prevention screw expected to have a loosening prevention effect.

【0002】[0002]

【従来の技術】従来のネジの緩み防止構造は、図2に示
すように雌ネジ4側へネジ形状を変形させたインサート
5を挿入して雌ネジを構成し、ここへ挿入した雄ネジ3
の緩み防止をはかる方法や図3,4に示すように接着剤
6の塗布またはワイヤー7掛けで固定する方法などが用
いられている。
2. Description of the Related Art In a conventional screw loosening prevention structure, as shown in FIG. 2, an insert 5 having a deformed screw shape is inserted to the female screw 4 side to form a female screw, and the male screw 3 inserted therein.
And a method of applying an adhesive 6 or fixing with a wire 7 as shown in FIGS. 3 and 4 are used.

【0003】図2の方法は、変形した雌ネジのスプング
力で雄ネジ3の回転を抑止し緩みを防止させるものであ
り、図3,4に示す方法は、接着力6またはワイヤー7
の張力で同様に緩みを防止させるものである。
The method shown in FIG. 2 is to prevent the male screw 3 from rotating by the sponging force of the deformed female screw so as to prevent loosening. The method shown in FIGS.
Similarly, the tension prevents the loosening.

【0004】[0004]

【発明が解決しようとする課題】従来のネジの緩み防止
構造において、図3,4に示す方法ではネジ締結作業に
時間を必要とし、図2の方法ではネジの締め付け/取り
外しを幾度か繰り返すと、雌ネジのスプリング力が弱ま
り緩み防止効果も低下するという問題があった。
In the conventional screw loosening prevention structure, the method shown in FIGS. 3 and 4 requires time for screw fastening work, and the method shown in FIG. 2 requires repeated screw fastening / removal. However, there is a problem that the spring force of the female screw is weakened and the loosening prevention effect is also reduced.

【0005】更に図2の構造では、スプリング力が低下
した場合には交換が困難であり、他の方法と併用て緩み
防止することも多く、作業効率が良くなかった。
Further, in the structure of FIG. 2, it is difficult to replace the spring when the spring force is reduced, and it is often used together with other methods to prevent loosening, resulting in poor work efficiency.

【0006】[0006]

【課題を解決するための手段】本発明は、これらの欠点
を解決するために雄ネジの一部にネジの回転を抑止する
スプリング力を発生させる変形部と緩み側の摩擦を大き
くして緩みにくくする微細な凹凸を有した構造となって
いる。
SUMMARY OF THE INVENTION In order to solve these drawbacks, the present invention is to loosen by increasing the friction on the deformed portion and the loosening side, which generates a spring force for restraining the rotation of the male screw in a part thereof. It has a structure with fine irregularities that make it difficult.

【0007】[0007]

【実施例】次に本発明について図面を参照して説明す
る。図1は本発明の一実施例を示し、(A)は雄ネジ本
体外観図、(B)はネジ変形部の拡大図、(C)はネジ
の緩み方向に設けた微細な凹凸の拡大図である。
The present invention will be described below with reference to the drawings. 1A and 1B show an embodiment of the present invention, in which FIG. 1A is an external view of a male screw body, FIG. 1B is an enlarged view of a screw deformation portion, and FIG. 1C is an enlarged view of fine irregularities provided in a screw loosening direction. Is.

【0008】ネジ部の変形はプレス加工等で作り込み、
微細な凹凸はネジ転造中等での作り込みやエッチング/
サンドブラスト等で加工する。
Deformation of the screw part is made by press working,
Fine unevenness is etched or etched during screw rolling etc.
Process by sandblasting.

【0009】[0009]

【発明の効果】以上説明したように発明は、雄ネジのネ
ジ部に変形部と微細な凹凸を有した構造となっており、
短時間で締め易く・緩みにくいネジ締結が可能である。
また締め付け/取り外しの繰り返しで、雄ネジの変形部
や微細な凹凸が摩耗して効果が低下した場合には、新品
ネジと交換することで容易に対応できる。
As described above, according to the present invention, the threaded portion of the male screw has a deformed portion and fine irregularities,
It is possible to tighten screws that are easy to tighten and hard to loosen in a short time.
Further, if the effect of the deformed portion or fine irregularities of the male screw is reduced due to repeated tightening / removal, the effect can be easily replaced by replacing with a new screw.

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

【図1】本発明の一実施例を示し、(A)は外観図,
(B)はネジ変形部の拡大図,(C)はネジの緩み方向
に設けた微細な凹凸の拡大図。
FIG. 1 shows an embodiment of the present invention, (A) is an external view,
(B) is an enlarged view of the screw deformation portion, (C) is an enlarged view of fine unevenness provided in the loosening direction of the screw.

【図2】従来の雌ネジ側に変形を有した緩み防止構造の
一例。
FIG. 2 shows an example of a conventional loosening prevention structure having deformation on the female screw side.

【図3】従来の接着剤塗布による緩み防止構造の一例。FIG. 3 shows an example of a conventional loosening prevention structure by applying an adhesive.

【図4】従来のワイヤー掛けによる緩み防止構造の一
例。
FIG. 4 is an example of a conventional loosening prevention structure using a wire.

【符号の説明】[Explanation of symbols]

1 変形部 2 微細凹凸部 3 雄ネジ 1 Deformation part 2 Fine uneven part 3 Male screw

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 雄ネジの一部にネジの回転を抑止するス
プリング力を発生させる変形部とを備えた緩み防止ネ
ジ。
1. A loosening prevention screw comprising a part of the male screw, and a deformable portion for generating a spring force for inhibiting the rotation of the screw.
【請求項2】雄ネジの一部に緩み側の摩擦を大きくし
て、緩みにくくする微細な凹凸を備えたことを特徴とす
る請求項1の緩み防止ネジ。
2. The loosening prevention screw according to claim 1, wherein a part of the male screw is provided with fine unevenness for increasing the friction on the loosening side to make it hard to loosen.
JP30447993A 1993-12-06 1993-12-06 Looseness preventing screw Pending JPH07158627A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30447993A JPH07158627A (en) 1993-12-06 1993-12-06 Looseness preventing screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30447993A JPH07158627A (en) 1993-12-06 1993-12-06 Looseness preventing screw

Publications (1)

Publication Number Publication Date
JPH07158627A true JPH07158627A (en) 1995-06-20

Family

ID=17933524

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30447993A Pending JPH07158627A (en) 1993-12-06 1993-12-06 Looseness preventing screw

Country Status (1)

Country Link
JP (1) JPH07158627A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110957139A (en) * 2019-11-18 2020-04-03 湖南华冉科技有限公司 Tantalum capacitor shell
JP2020060028A (en) * 2018-10-10 2020-04-16 Jfeスチール株式会社 Steel pipe joint

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55135220A (en) * 1979-04-04 1980-10-21 Lamson Sessions Co Scrwe thread
JPS61294209A (en) * 1985-06-22 1986-12-25 オ−エスジ−株式会社 Screw member

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55135220A (en) * 1979-04-04 1980-10-21 Lamson Sessions Co Scrwe thread
JPS61294209A (en) * 1985-06-22 1986-12-25 オ−エスジ−株式会社 Screw member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020060028A (en) * 2018-10-10 2020-04-16 Jfeスチール株式会社 Steel pipe joint
CN110957139A (en) * 2019-11-18 2020-04-03 湖南华冉科技有限公司 Tantalum capacitor shell
CN110957139B (en) * 2019-11-18 2023-11-21 湖南华冉科技有限公司 Tantalum capacitor shell

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A02 Decision of refusal

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Effective date: 19960409