JPH0763211A - Locking seal nut - Google Patents

Locking seal nut

Info

Publication number
JPH0763211A
JPH0763211A JP24842893A JP24842893A JPH0763211A JP H0763211 A JPH0763211 A JP H0763211A JP 24842893 A JP24842893 A JP 24842893A JP 24842893 A JP24842893 A JP 24842893A JP H0763211 A JPH0763211 A JP H0763211A
Authority
JP
Japan
Prior art keywords
nut
screw
metal nut
resin member
metal
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
JP24842893A
Other languages
Japanese (ja)
Inventor
Korehito Marui
是人 丸井
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.)
Nitto Seiko Co Ltd
Original Assignee
Nitto Seiko Co 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 Nitto Seiko Co Ltd filed Critical Nitto Seiko Co Ltd
Priority to JP24842893A priority Critical patent/JPH0763211A/en
Priority to DE69414905T priority patent/DE69414905T2/en
Priority to EP94302801A priority patent/EP0621497B1/en
Priority to US08/230,926 priority patent/US5508758A/en
Publication of JPH0763211A publication Critical patent/JPH0763211A/en
Priority to US08/519,469 priority patent/US5627610A/en
Pending legal-status Critical Current

Links

Landscapes

  • Bolts, Nuts, And Washers (AREA)

Abstract

PURPOSE:To provide an inexpensive nut which prevents the generation of rust on a nut fastening part, and prevents the loosening of the nut itself. CONSTITUTION:A resin member 3 is extended coaxially with a metal nut 1 on a rear end of the metal nut 1, which member 3 has an unscrewed bladder hole 4 having substantially the same inner diameter with a female screw 2. The resin member 3 covers the metal nut 1 and extended to the leading end. A circular projection 5 is formed on the leading end of the metal nut l, while a bowl-like sealing part 7 widened frontward is integrated with the metal nut 1. Fastening strength is secured by the metal nut 1. Screw threads are formed by a small screw at the time of fastening since the unscrewed bladder hole 4 of the resin member 3 has substantially the same diameter as the female screw 3. The screw threads are fastened by elasticity of the resin member 3 to prevent loosening of the screw. In addition, perfect sealing is provided by the sealing part 7. Generation of rust is prevented even in a condition with moisture and satisfactory external appearance is kept for a long time. Operability of assembling is improved and a cost is reduced for inexpensive manufacturing.

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、腐食性の雰囲気や雨露
にさらされる所で使用して有効な緩み止めシールナット
に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-loosening seal nut which is effective when used in a corrosive atmosphere or exposed to rain and dew.

【0002】[0002]

【従来の技術】一般に、部品の組付けや固着には金属製
の小ねじとナットまたはボルトとナットを用いて締付け
が行われている。
2. Description of the Related Art Generally, a small machine screw and a nut or a bolt and a nut made of metal are used for assembling and fixing components.

【0003】[0003]

【発明が解決しようとする課題】しかし、この構成では
雨など水分がかかると金属ナットの締付け部に錆が発生
し腐蝕するとともに美観が損われる。このためにナット
を締付けた後に樹脂製のキャップ部品によりこれを覆い
錆の発生を防止しているが、部品点数が多くなるととも
に作業性も悪くコスト高になるなどの問題がある。また
前記構成では、緩み止め機能がなく使用中にナットの緩
みが生じる欠点がある。この緩みを防止するためにはダ
ブルナットで締付けるようにすればよいが美観が悪くな
るなどの課題があった。本発明はこれらの課題を解消
し、ナット締付け部の錆の発生をなくし、かつナットの
緩みを防止する安価なナットを提供することを目的とし
て発明されたものである。
However, in this structure, when moisture such as rain is applied, rust is generated in the tightening portion of the metal nut, which causes corrosion and impairs the appearance. For this reason, after the nut is tightened, the resin cap component covers the cap component to prevent rust from occurring, but there are problems that the number of components is large and the workability is poor and the cost is high. Further, the above-mentioned configuration has a drawback that the nut does not come loose during use because it does not have a loosening prevention function. In order to prevent this loosening, it is sufficient to tighten it with a double nut, but there was a problem that the aesthetics deteriorated. The present invention has been made with the object of solving these problems, providing an inexpensive nut that prevents the nut tightening portion from rusting and prevents the nut from loosening.

【0004】[0004]

【課題を解決するための手段】この目的を達成するた
め、所定のめねじを形成した金属ナットの後端に前記め
ねじの内径とほぼ同径のねじなし袋穴を有する樹脂部材
を前記金属ナットと同心に延設し、その樹脂部材が前記
金属ナットを覆って前端まで延び、金属ナットの前端に
おいて環状突起を形成するとともに前方へ拡がる皿形の
シール部を金属ナットと一体に成形した緩み止めシール
ナットである。
In order to achieve this object, a resin member having a threadless cap hole having a diameter substantially the same as the inner diameter of the female thread is provided at the rear end of the metal nut having a predetermined female thread. The resin member that extends concentrically with the nut extends to the front end over the metal nut, forms a ring-shaped protrusion at the front end of the metal nut, and expands forward. It is a stop seal nut.

【0005】[0005]

【作用】金属ナットがインサートされているため、軸方
向の締付け強度は充分に確保され、しかも樹脂部材のね
じなし袋穴がめねじ内径とほぼ同径してあるので締付け
時に小ねじ(またはタッピングねじ)によってねじ山が
形成されてねじ込まれ、そして樹脂材の弾性によってね
じの外面を締付けてねじの緩みを防止し、さらに環状突
起部とシール部により締付け面をシールすることができ
る。
[Function] Since the metal nut is inserted, the tightening strength in the axial direction is sufficiently secured, and since the unthreaded blind hole of the resin member has almost the same diameter as the internal diameter of the female thread, a small screw (or tapping screw) is used during tightening. ), A screw thread is formed and screwed in, and the elasticity of the resin material tightens the outer surface of the screw to prevent the screw from loosening, and the annular projection and the seal portion can seal the tightening surface.

【0006】[0006]

【実施例】以下、図面に基づき実施例を説明する。図1
ないし図3は本発明の緩み止めシールナットAを示す。
図中の1は金属製の六角ナットであり、中心には所定の
めねじ2が形成してある。この金属ナット1の後端には
外形六角形状の樹脂部材3が延設してあり金属ナット1
を覆って一体成形されている。この樹脂部材3の中心に
は前記めねじ2の内径(めねじの山の直径)とほぼ同一
寸法のねじなし袋穴4が金属ナット1と同心状に形成し
てある。一方、この金属ナット1の前端には前記樹脂部
材3から延びて続く環状突起部5が形成されており、そ
の環状突起部5の内径6は前記めねじ2の谷径よりやや
大きく形成され金属ナット1と同心状に一体成形されて
いる。さらにこの樹脂部材は金属ナット1の前方へ拡大
するように皿形のシール部7が設けてありその先端縁は
前記環状突起部5よりもやや前方に位置するように形成
されている。この緩み止めシールナットAは、予め加工
された金属ナット1を成形型にセットして樹脂材料を注
入するいわゆるインサート成形法により容易に製造する
ことができる。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be described below with reference to the drawings. Figure 1
3 to 3 show the locking nut A of the present invention.
Reference numeral 1 in the figure is a hexagonal nut made of metal, and a predetermined female screw 2 is formed at the center thereof. A resin member 3 having an external hexagonal shape is extended at the rear end of the metal nut 1.
Is integrally molded to cover. At the center of the resin member 3, a screwless cap hole 4 having substantially the same size as the inner diameter of the female screw 2 (the diameter of the crest of the female screw) is formed concentrically with the metal nut 1. On the other hand, an annular projection 5 extending from the resin member 3 is formed at the front end of the metal nut 1, and the inner diameter 6 of the annular projection 5 is formed to be slightly larger than the root diameter of the female screw 2. It is integrally formed concentrically with the nut 1. Further, this resin member is provided with a dish-shaped seal portion 7 so as to expand to the front of the metal nut 1, and its tip edge is formed so as to be positioned slightly forward of the annular projection portion 5. This locking nut A can be easily manufactured by a so-called insert molding method in which a preprocessed metal nut 1 is set in a molding die and a resin material is injected.

【0007】この構成による緩み止めシールナットA
は、腐食性の雰囲気や雨露のかかる所などでの使用に最
適である。図4に示すように取付け部材21の表面側に
緩み止めシールナットAをあてがい樹脂部材3の外形
(六角外形部)を保持し、一方、取付け部材21の取付
け穴22に被取付け部材23を合わせ、金属製の小ねじ
24を挿入する。この小ねじ24を金属ナット1のめね
じ2にねじ込む。ねじ込みを続けると小ねじ24の先端
は金属ナット1を貫通して樹脂部材3のねじなし袋穴4
に当り、ここから小ねじ24によってねじなし袋穴4に
ねじ山を成形しながらねじ込むことになる。この樹脂部
材3はポリアセタール樹脂またはポリアミド樹脂などを
使用しており、ねじなし袋穴4はめねじ2の内径とほぼ
同径にしてあるので容易にねじ込むことができる。この
ようにねじ込んでいくと、緩み止めシールナットAのシ
ール部7が取付け部材21に押圧され、さらにねじ24
をねじ込むと環状突起部5が取付け部材21に当接して
締付けを完了する。これにより前記皿形のシール部7は
取付け部材に密着して押圧状態を保持しシール機能を発
揮する。またねじなし袋穴4にねじ込まれた小ねじ24
の先方は、樹脂部材3の弾性力によってねじ山が締付け
られねじの緩みを防止することができる。尚、前記小ね
じ24はタッピンねじを用いてもよい。
Locking prevention seal nut A of this construction
Is suitable for use in corrosive atmospheres and places exposed to rain and dew. As shown in FIG. 4, a locking nut A is applied to the front side of the mounting member 21 to hold the outer shape (hexagonal outer shape) of the resin member 3, while the mounting member 22 is fitted to the mounting hole 22 of the mounting member 21. , The metal machine screw 24 is inserted. The machine screw 24 is screwed into the female screw 2 of the metal nut 1. When the screwing is continued, the tip of the machine screw 24 penetrates the metal nut 1 and the screw-less cap hole 4 of the resin member 3 is inserted.
Then, from this point, the machine screw 24 is screwed into the unthreaded blind hole 4 while forming a thread. The resin member 3 is made of polyacetal resin, polyamide resin, or the like, and since the screwless blind hole 4 has a diameter substantially the same as the inner diameter of the female screw 2, it can be easily screwed. When screwed in this way, the seal portion 7 of the loosening prevention seal nut A is pressed against the mounting member 21, and the screw 24
When is screwed in, the annular protrusion 5 comes into contact with the mounting member 21 to complete the tightening. As a result, the dish-shaped sealing portion 7 comes into close contact with the mounting member and maintains the pressed state to exert the sealing function. In addition, a machine screw 24 screwed into the screwless bag hole 4
In the other end, the thread is tightened by the elastic force of the resin member 3 and the loosening of the screw can be prevented. The machine screw 24 may be a tapping screw.

【0008】また、図5に示す他の実施例では、金属ナ
ット11の外周に溝12を設けて樹脂材との固着性をよ
くした緩み止めシールナットBであり、シール機能およ
び緩み止めの作用効果は前記緩み止めシールナットAと
同等である。またこれらの実施例では、樹脂部材3およ
び金属ナット1の外面形状を六角形にしているが、二面
をカットした形状あるいはその他の多角形でもよく、特
に樹脂部材3の外面形状は締付け時に工具が係合できる
形状がよい。
In another embodiment shown in FIG. 5, the lock nut B is a lock nut B having a groove 12 formed on the outer periphery of the metal nut 11 to improve the adhesiveness to the resin material. The effect is the same as that of the locking nut A. Further, in these embodiments, the outer surface shape of the resin member 3 and the metal nut 1 is hexagonal, but it may be a shape in which two surfaces are cut or another polygonal shape. In particular, the outer surface shape of the resin member 3 is a tool when tightening. A shape that can be engaged with is preferable.

【0009】[0009]

【発明の効果】以上の説明で明らかなように本発明は、
所定のめねじを形成した金属ナットの後端に前記めねじ
の内径とほぼ同径のねじなし袋穴を有する樹脂部材を前
記金属ナットと同心に延設し、その樹脂部材が前記金属
ナットを覆って前端まで延び、金属ナットの前端におい
て環状突起部を形成するとともに前方へ拡がる皿形のシ
ール部を金属ナットと一体成形した緩み止めシールナッ
トである。この発明によれば、金属ナットがインサート
されているため軸方向の締付け強度は充分に確保され、
しかも樹脂部材のねじなし袋穴がめねじ内径とほぼ同径
にしてあるので締付け時に小ねじ(またはタッピングね
じ)によってねじ山を形成し、その樹脂材の弾性によっ
てねじの外面を締付けてねじの緩みを防止し、さらにシ
ール部により締付け面を完全にシールすることができ
る。これにより雨露など水分がかかっても錆の発生がな
く長く美観を保つことができるとともに組付けの作業性
がよくコストが低減でき、かつ安価に製造できる等大き
な効果が得られる。
As is apparent from the above description, the present invention is
A resin member having a blind hole having a screw diameter substantially the same as the inner diameter of the female screw is provided concentrically with the metal nut at the rear end of the metal nut formed with a predetermined female screw, and the resin member serves as the metal nut. This is a locking seal nut integrally formed with a metal nut that covers and extends to the front end, forms an annular protrusion at the front end of the metal nut, and expands forward. According to this invention, since the metal nut is inserted, the tightening strength in the axial direction is sufficiently secured,
Moreover, since the blind hole of the resin member has almost the same diameter as the internal diameter of the female thread, a screw thread is formed by a small screw (or tapping screw) when tightening, and the elasticity of the resin material tightens the outer surface of the screw to loosen the screw. And the tightening surface can be completely sealed by the seal portion. As a result, even if moisture such as rain dew is applied, rust does not occur, the appearance can be maintained for a long time, the workability of assembly is good, the cost can be reduced, and the manufacturing cost can be reduced.

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

【図1】本発明の緩み止めシールナットAの正面断面図
である。
FIG. 1 is a front sectional view of a locking nut A according to the present invention.

【図2】図1の正面外観図である。FIG. 2 is a front external view of FIG.

【図3】図2の平面図である。FIG. 3 is a plan view of FIG.

【図4】緩み止めシールナットによる締付け状態を示す
説明図である。
FIG. 4 is an explanatory view showing a tightened state with a loosening prevention seal nut.

【図5】他の実施例の緩み止めシールナットBを示す正
面断面図である。
FIG. 5 is a front cross-sectional view showing a locking nut B according to another embodiment.

【符号の説明】[Explanation of symbols]

1 金属ナット 2 めねじ 3 樹脂部材 4 ねじなし袋穴 5 環状突起部 6 内径 7 シール部 A 緩み止めシールナット 1 Metal Nut 2 Female Thread 3 Resin Member 4 Screwless Blind Hole 5 Annular Protrusion 6 Inner Diameter 7 Seal Part A Locking Seal Nut

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 所定のめねじを形成した金属ナットの後
端に前記めねじの内径とほぼ同径のねじなし袋穴を有す
る樹脂部材を前記金属ナットと同心に延設し、その樹脂
部材が前記金属ナットを覆って前端まで延び、金属ナッ
トの前端において環状突起部を形成するとともに前方へ
拡がる皿形のシール部を金属ナットと一体成形したこと
を特徴とする緩み止めシールナット。
1. A resin member having a capless hole having a screw diameter substantially the same as the inner diameter of the female screw at the rear end of the metal nut formed with a predetermined female screw and extending concentrically with the metal nut. A loosening prevention seal nut, characterized in that a plate-shaped seal portion that extends to the front end while forming a ring-shaped projection portion at the front end of the metal nut is formed integrally with the metal nut.
JP24842893A 1993-04-21 1993-08-27 Locking seal nut Pending JPH0763211A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP24842893A JPH0763211A (en) 1993-08-27 1993-08-27 Locking seal nut
DE69414905T DE69414905T2 (en) 1993-04-21 1994-04-20 Self-locking nut for glasses, nut tensioner, and nut delivery device
EP94302801A EP0621497B1 (en) 1993-04-21 1994-04-20 Self-locking nut for eye glasses, nut tightener, and nut supplier
US08/230,926 US5508758A (en) 1993-04-21 1994-04-21 Self-locking nut with threaded and self-locking members, useful for eye glasses, and a nut tightener and a nut supplier for same
US08/519,469 US5627610A (en) 1993-04-21 1995-08-25 Self-locking nut for eye glasses having an unthreaded hole with vertical channels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24842893A JPH0763211A (en) 1993-08-27 1993-08-27 Locking seal nut

Publications (1)

Publication Number Publication Date
JPH0763211A true JPH0763211A (en) 1995-03-07

Family

ID=17177983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24842893A Pending JPH0763211A (en) 1993-04-21 1993-08-27 Locking seal nut

Country Status (1)

Country Link
JP (1) JPH0763211A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004187748A (en) * 2002-12-09 2004-07-08 Maruzen Byora:Kk Mounting nut of spike for golf shoes
JP2007524792A (en) * 2003-07-01 2007-08-30 エズナット プロプライエタリー リミテッド Elastic coupling element and fastener assembly incorporating it
JP2010088258A (en) * 2008-10-02 2010-04-15 Hitachi Engineering & Services Co Ltd Sealing degree improving method for compression fluid sealing device, and compression fluid sealing device
JP2012500948A (en) * 2008-08-26 2012-01-12 ルイ グローバル ファスナー アーゲー Washer, bolt or nut with high coefficient of friction

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004187748A (en) * 2002-12-09 2004-07-08 Maruzen Byora:Kk Mounting nut of spike for golf shoes
JP2007524792A (en) * 2003-07-01 2007-08-30 エズナット プロプライエタリー リミテッド Elastic coupling element and fastener assembly incorporating it
JP2012500948A (en) * 2008-08-26 2012-01-12 ルイ グローバル ファスナー アーゲー Washer, bolt or nut with high coefficient of friction
JP2010088258A (en) * 2008-10-02 2010-04-15 Hitachi Engineering & Services Co Ltd Sealing degree improving method for compression fluid sealing device, and compression fluid sealing device

Similar Documents

Publication Publication Date Title
AU613303B2 (en) Plastic encapsulated nut and washer assembly
US20040101383A1 (en) Ground washer
JP2023517789A (en) Rotating drop prevention washer, fastening connection mechanism, and fastening method
US20050100425A1 (en) Fastener assembly
JPH083701Y2 (en) Bolt and nut caps
JPH0763211A (en) Locking seal nut
KR20010023513A (en) Locking bolt and bolt locking method
JPH11287232A (en) Structure for preventing simultaneous turning of nuts
JPH064419U (en) Welded stud bolt
JP2777237B2 (en) Plastic encapsulated nut / washer assembly
JP3553291B2 (en) Drop-off prevention aid and drop-off prevention external thread member including the same
JPS5851446Y2 (en) Structure to prevent screws from loosening
JPS6039533Y2 (en) Seal/locking nut
JPH1078018A (en) Coming-off preventing cap and coming-off preventing internal thread member including this coming-off preventing cap
JP3009982B2 (en) Lock nut
JPH08105424A (en) Locking metal fitting for bolt or nut
JPH11182654A (en) Breather plug
JPH07166627A (en) Locking mounting structure of panel
JPH10176708A (en) Locking nut
JPH0221009A (en) Method for fitting outer accessories for automobile and collar for fitting used therefor
JPH07317717A (en) Clip
KR20000019732U (en) Lock bolt and nut
JPH10299748A (en) Bolt
JPH112227A (en) Locking nut
JPH06308432A (en) Stopper nut for spectacles