JP2681154B2 - How to prevent screws from loosening - Google Patents
How to prevent screws from looseningInfo
- Publication number
- JP2681154B2 JP2681154B2 JP2051711A JP5171190A JP2681154B2 JP 2681154 B2 JP2681154 B2 JP 2681154B2 JP 2051711 A JP2051711 A JP 2051711A JP 5171190 A JP5171190 A JP 5171190A JP 2681154 B2 JP2681154 B2 JP 2681154B2
- Authority
- JP
- Japan
- Prior art keywords
- screw
- loosening
- adhesive
- parts
- weight
- 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.)
- Expired - Fee Related
Links
Landscapes
- Adhesives Or Adhesive Processes (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はネジの締結部を永久固定する簡便かつ安価な
ネジのゆるみ防止方法に関する。The present invention relates to a simple and inexpensive screw loosening prevention method for permanently fixing a fastening portion of a screw.
締めつけたネジのゆるみを防止する方法として、スプ
リングワッシャによる方法やネジのゆるみ防止用接着剤
を用いた方法がある。As a method for preventing loosening of the tightened screw, there are a method using a spring washer and a method using an adhesive for preventing the screw from loosening.
しかしながら、過酷な使用環境条件や長期間の使用に
おけるゆるみを完全に防止できなかった。本発明の目的
は、従来のような欠点のないネジのゆるみ防止方法を提
供することにある。However, it has not been possible to completely prevent loosening under severe environmental conditions or long-term use. SUMMARY OF THE INVENTION It is an object of the present invention to provide a screw loosening prevention method which does not have the conventional drawbacks.
本発明を概説すれば、本発明はネジのゆるみ防止方法
に関する発明であって、材質が鉄系金属であるネジを締
めつける際、該ネジのカン合部に、エポキシ系、アクリ
ル系あるいはポリエステル系接着剤100重量部に対して
最大粒径100μｍ以下、かつモース硬度５以上であって
該ネジの表面を傷つけることができる硬度をもつ硬質性
粒子粉末を２〜100重量部充てんした接着剤組成物を塗
布・充てんすることを特徴とする。The present invention will be described in brief. The present invention relates to a method for preventing loosening of a screw, and when tightening a screw whose material is an iron-based metal, an epoxy-based, acrylic-based, or polyester-based adhesive is applied to a screw joint portion of the screw. An adhesive composition in which 2 to 100 parts by weight of hard particle powder having a maximum particle size of 100 μm or less and a Mohs hardness of 5 or more per 100 parts by weight of an agent and having a hardness capable of damaging the surface of the screw is provided. Characterized by coating and filling.
エポキシ系、アクリル系あるいはポリエステル系接着
剤としては、市販の熱硬化型接着剤や嫌気性硬化型接着
剤を用いることができる。As the epoxy-based, acrylic-based or polyester-based adhesive, a commercially available thermosetting adhesive or anaerobic curable adhesive can be used.
硬質性粒子粉末の最大粒径が100μｍを越えると、ネ
ジの締結部の隙間に入り難い。また、粒子粉末のモース
硬度が５未満であると、ネジの材質である鉄系金属（モ
ース硬度４）の表面を傷つけることができないので、投
錨効果が発現できず、従来のゆるみ防止用接着剤並みの
ゆるみ防止効果しか期待できず、充分でない。If the maximum particle size of the hard particle powder exceeds 100 μm, it will be difficult for the powder to enter the clearance at the screw fastening part. Also, if the Mohs hardness of the particle powder is less than 5, the surface of the iron-based metal (Mohs hardness 4), which is the material of the screw, cannot be damaged, so that the anchoring effect cannot be exhibited and the conventional loosening preventive adhesive. It is not enough, because you can expect only the effect of preventing loosening.
また、硬質性粒子粉末の充てん量が２重量部未満であ
ると、ネジ締結部の表面を傷つけることができないの
で、投錨効果が発現できない。一方、粒子粉末の充てん
量が100重量部を越えると、ネジ締結部への塗布・充て
んが困難となる。Further, if the filling amount of the hard particle powder is less than 2 parts by weight, the surface of the screw fastening portion cannot be damaged, so that the anchoring effect cannot be exhibited. On the other hand, when the filling amount of the particle powder exceeds 100 parts by weight, it becomes difficult to apply and fill the screw fastening portion.
本発明で使用する硬質性粒子粉末は、硬くて鋭角をも
つ多角体、例えば金平糖の形状のものがよい。その例と
しては、アルミナ粉末、炭化ケイ素粉末、酸化亜鉛ウイ
スカ粉末及びダイヤモンド粉末が挙げられる。The hard particle powder used in the present invention is preferably a polyhedron having a hard and acute angle, for example, in the shape of confetti. Examples include alumina powder, silicon carbide powder, zinc oxide whisker powder, and diamond powder.
接着剤に最大粒径100μｍ以下、かつモース硬度５以
上の硬質性粒子粉末を２〜100重量部充てんしたネジの
ゆるみ防止用接着剤をネジ締結部に塗布・充てんするこ
とにより、ネジ締めつけ時に、ネジ締結部の表面に傷を
付け、投錨効果を発現させると共に、接着剤で固め、ネ
ジの締結強度を向上させ、締めつけ後のネジに加わる機
械的ショックや振動などによるゆるみを完全に防止す
る。Applying 2-100 parts by weight of hard particle powder having a maximum particle size of 100 μm or less and Mohs hardness of 5 or more to the adhesive to prevent loosening of the screw is applied to the screw fastening part, so that when tightening the screw, The surface of the screw fastening part is scratched and the anchoring effect is exhibited, and it is hardened with an adhesive to improve the fastening strength of the screw and completely prevent loosening due to mechanical shock or vibration applied to the screw after fastening.
以下、本発明を実施例により、更に具体的に説明する
が本発明はこれら実施例に限定されない。Hereinafter, the present invention will be described more specifically with reference to examples, but the present invention is not limited to these examples.
実施例１ エポキシ系接着剤として、市販の２液タイプ・室温硬
化型ビスフェノールＡ型エポキシ接着剤100重量部に対
して、最大粒径100μｍ以下のアルミナ粉末（LSI用アル
ミナ基板の粉砕品）を80重量部添加した接着剤組成物
を、ネジ（ネジのボルト山部の直径11mm、谷部の直径9m
m、六角ナットの長さ10mm、幅18mm）の締結部に塗布・
充てんし、ネジを締めつけた。室温で24時間後、トルク
レンチにより、ネジのゆるめ力を測定したところ、600k
g・cm以上のトルク強度であった。また、ネジ（ネジの
ボルト山部の直径5mm、谷部の直径4mm、六角ナットの長
さ5mm、幅8mm）の締結部に塗布・充てんし、ネジを締め
つけた。室温で24時間後、トルクレンチにより、ネジの
ゆるめ力を測定したところ、44kg・cm以上のトルク強度
であった。また、ネジの振動試験（毎分500回、振幅10m
m、２千回）を実施した後、ネジのゆるめ力は600kg・cm
以上のトルク強度であり、低下しなかった。また、ネジ
を1mの高さから落下させた後のネジのゆるめ力も低下し
なかった。Example 1 As an epoxy adhesive, 80 parts of alumina powder having a maximum particle size of 100 μm or less (crushed product of alumina substrate for LSI) was used with respect to 100 parts by weight of a commercially available two-component type room temperature curable bisphenol A type epoxy adhesive. Adhesive composition with parts by weight added to screws (screw bolt diameter 11 mm, valley 9 m
m, hexagon nut length 10 mm, width 18 mm)
Filled and tightened the screws. After 24 hours at room temperature, the loosening force of the screw was measured with a torque wrench.
The torque strength was gcm or higher. In addition, we applied and filled the fastening parts of the screws (diameter of screw thread 5mm, diameter of valley 4mm, length of hexagon nut 5mm, width 8mm) and tightened the screws. After 24 hours at room temperature, when the loosening force of the screw was measured with a torque wrench, the torque strength was 44 kg · cm or more. In addition, screw vibration test (500 times per minute, amplitude 10m
(2, 000 times), the loosening force of the screw is 600kg ・ cm
The above torque strength was not decreased. Moreover, the loosening force of the screw after dropping the screw from a height of 1 m did not decrease.
比較例１ エポキシ系接着剤として、市販の２液タイプ・室温硬
化型ビスフェノールＡ型エポキシ接着剤を、ネジ（ネジ
の山部の直径11mm、谷部の直径9mm）の締結部に塗布・
充てんし、ネジを締めつけた。室温で24時間後、トルク
レンチにより、ネジのゆるめ力を測定したところ、250
〜300kg・cmのトルク強度であった。また、ネジ（ネジ
のボルト山部の直径5mm、谷部の直径4mm、六角ナットの
長さ5mm、幅8mm）の締結部に塗布・充てんし、ネジを締
めつけた。室温で24時間後、トルクレンチにより、ネジ
のゆるめ力を測定したところ、24kg・cm以上のトルク強
度であり、実施例１の半分の力でネジがゆるむ。また、
ネジの振動試験（毎分500回、振幅10mm、２千回）を実
施した後ネジのゆるめ力は200kg・cm以下のトルク強度
になり低下した。Comparative Example 1 As the epoxy adhesive, a commercially available two-component type room temperature curable bisphenol A type epoxy adhesive was applied to the fastening parts of the screws (screw thread diameter 11 mm, valley diameter 9 mm).
Filled and tightened the screws. After 24 hours at room temperature, the loosening force of the screw was measured with a torque wrench.
The torque strength was ~ 300 kg · cm. In addition, we applied and filled the fastening part of the screw (diameter of screw thread 5mm, diameter of valley 4mm, length of hexagon nut 5mm, width 8mm) and tightened the screw. After 24 hours at room temperature, when the loosening force of the screw was measured with a torque wrench, the torque strength was 24 kg · cm or more, and the screw loosens with half the force of Example 1. Also,
After conducting a vibration test of the screw (500 times per minute, amplitude 10 mm, 2,000 times), the loosening force of the screw decreased to a torque strength of 200 kg · cm or less.
本発明のネジのゆるみ防止方法を用いネジを締めつけ
ると、ネジのゆるめ力が増大すると共に、振動や機械的
ショックにより締結力の低下がない極めてゆるみ難いネ
ジの締結部を形成できる。When the screw is tightened by using the screw loosening prevention method of the present invention, the loosening force of the screw is increased, and the fastening portion of the screw that is extremely hard to loosen without a decrease in fastening force due to vibration or mechanical shock can be formed.
Claims (1)
際、該ネジのカン合部に、エポキシ系、アクリル系ある
いはポリエステル系接着剤100重量部に対して、最大粒
径100μｍ以下、かつモース硬度５以上であって該ネジ
の表面を傷つけることができる硬度をもつ硬質性粒子粉
末を２〜100重量部充てんした接着組成物を塗布・充て
んすることを特徴とするネジのゆるみ防止方法。1. When tightening a screw made of iron-based metal, the maximum particle size is 100 μm or less, and the mohse is 100 parts by weight of an epoxy-based, acrylic-based, or polyester-based adhesive at the joining portion of the screw. A method for preventing screw loosening, which comprises applying an adhesive composition filled with 2 to 100 parts by weight of hard particle powder having a hardness of 5 or more and having a hardness capable of damaging the surface of the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2051711A JP2681154B2 (en) | 1990-03-05 | 1990-03-05 | How to prevent screws from loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2051711A JP2681154B2 (en) | 1990-03-05 | 1990-03-05 | How to prevent screws from loosening |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03255210A JPH03255210A (en) | 1991-11-14 |
| JP2681154B2 true JP2681154B2 (en) | 1997-11-26 |
Family
ID=12894480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2051711A Expired - Fee Related JP2681154B2 (en) | 1990-03-05 | 1990-03-05 | How to prevent screws from loosening |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2681154B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4942312B2 (en) * | 2005-07-05 | 2012-05-30 | 東洋ガラス株式会社 | Glass bottle |
| JP6267137B2 (en) * | 2015-01-27 | 2018-01-24 | 株式会社ニッセイテクニカ | Conductive locking agent composition, conductive locking agent containing the same, and fastener |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63275806A (en) * | 1987-05-08 | 1988-11-14 | 古賀 一夫 | Detent agent for screw |
-
1990
- 1990-03-05 JP JP2051711A patent/JP2681154B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03255210A (en) | 1991-11-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |