JPS6224815Y2 - - Google Patents

Info

Publication number
JPS6224815Y2
JPS6224815Y2 JP8406783U JP8406783U JPS6224815Y2 JP S6224815 Y2 JPS6224815 Y2 JP S6224815Y2 JP 8406783 U JP8406783 U JP 8406783U JP 8406783 U JP8406783 U JP 8406783U JP S6224815 Y2 JPS6224815 Y2 JP S6224815Y2
Authority
JP
Japan
Prior art keywords
tapered
end surface
thin
walled cylindrical
cylindrical portion
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
Application number
JP8406783U
Other languages
Japanese (ja)
Other versions
JPS59188316U (en
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 filed Critical
Priority to JP8406783U priority Critical patent/JPS59188316U/en
Publication of JPS59188316U publication Critical patent/JPS59188316U/en
Application granted granted Critical
Publication of JPS6224815Y2 publication Critical patent/JPS6224815Y2/ja
Granted legal-status Critical Current

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  • Dowels (AREA)
  • Bolts, Nuts, And Washers (AREA)

Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は戻り止め用のプラスチツクス製リング
をナツトブランクに組み込んだ戻り止めナツトに
関するものである。
[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a detent nut in which a plastic ring for detent is incorporated into the nut blank.

(従来技術) 戻り止め用のプラスチツクス製リングをナツト
ブランクに組み込んだ戻り止めナツトは広く使用
されているが、従来のこの種戻り止めナツトはプ
ラスチツクス製リングがナツトブランクに適確に
固定され難いため、使用時に所期に締付トルクお
よび軸力を確保できず、また、ボルトを螺挿する
際にプラスチツクス製リングも共に回転したりプ
ラスチツクス製リングが脱落する等種々の欠点が
あつた。
(Prior art) Detent nuts in which a plastic ring for detent is incorporated into the nut blank are widely used, but in conventional detent nuts of this type, the plastic ring is not properly fixed to the nut blank. Because of the difficulty, it is not possible to secure the desired tightening torque and axial force during use, and there are various drawbacks such as the plastic ring also rotating when inserting the bolt and the plastic ring falling off. Ta.

(考案の目的) 本考案は前記のような欠点を除いて充分な戻に
止め機能を発揮するうえ量産が容易な戻り止めナ
ツトを目的として完成されたものである。
(Purpose of the invention) The present invention has been completed with the aim of providing a detent nut that exhibits a sufficient detent function without the above-mentioned drawbacks and can be easily mass-produced.

(考案の構成) 本考案は一端面を座面としたナツト主体の他端
面を円錐台形状のテーパー端面に形成するととも
に該テーパー端面の外側にナツト主体と一連の肉
薄筒部を設けて該肉薄筒部内をねじ孔部に続くリ
ング嵌合部に形成し、該リング嵌合部には両端面
を外側に向け拡がるテーパー面に形成したプラス
チツクス製リングを嵌合してその外周面と一方の
テーパー面を前記肉薄筒部の内周面と前記テーパ
ー端面に密接させるとともに他方のテーパー面に
前記肉薄筒部の先端に形成される内向きの折曲端
部を係止させたことを特徴とするものである。
(Structure of the device) The present device has one end surface as a seat surface and the other end surface of the nut main body as a truncated conical tapered end surface, and a series of thin-walled cylindrical portions are provided on the outside of the tapered end surface with the nut main body. A ring fitting part is formed in the cylindrical part following the screw hole part, and a plastic ring with both end surfaces tapered outward is fitted into the ring fitting part, and the outer peripheral surface and one of the ring fitting parts are fitted into the ring fitting part. The tapered surface is brought into close contact with the inner circumferential surface of the thin-walled cylindrical portion and the tapered end surface, and the inwardly bent end formed at the tip of the thin-walled cylindrical portion is locked to the other tapered surface. It is something to do.

(実施例) 次に、本考案を図示の実施例について詳細に説
明すれば、1は一端面を座面2としたナツト主体
であつて、該ナツト主体1はその他端面が緩かな
円錐台形状のテーパー端面3に形成されており、
また、該ナツト主体1の他端には該テーパー端面
3の外側において該ナツト主体1と一連の肉薄筒
部4が設けられていて該肉薄筒部4内をナツト主
体1のねじ孔部5に続くリング嵌合部6に形成し
てある。9は該リング嵌合部6に嵌合されるポリ
アミド樹脂等の強靭な合成樹脂よりなるプラスチ
ツクス製リングであつて、該プラスチツクス製リ
ング9は内壁の長さよりも外壁の長さを大きくし
た断面略等脚台形状とすることにより両端面を外
側に向け拡がつたテーパー面7,8に形成してあ
り、外周面10と一方のテーパー面7を前記肉薄
筒部4の内周面と前記テーパー端面3に密接する
ようリング嵌合部6に嵌合されて肉薄筒部4の先
端を内向きにかしめ、この内向きの折曲端部11
が他方のテーパー面8の内方部に係止されること
により両テーパー面7,8の案内下にプラスチツ
クス製リング9が外側に加圧されるようになつて
いる。なお、プラスチツクス製リング9はその内
周面がねじ孔部5のねじ溝の溝底よりは若干内側
にある必要があるのでねじ山部と略同一面に位置
させてある。
(Embodiment) Next, the present invention will be described in detail with reference to the illustrated embodiment. Reference numeral 1 is a nut main body with one end surface as a seat surface 2, and the other end surface of the nut main body 1 has a gentle truncated conical shape. is formed on the tapered end surface 3 of
Further, the other end of the nut main body 1 is provided with a thin-walled cylindrical portion 4 connected to the nut main body 1 on the outside of the tapered end surface 3, and the inside of the thin-walled cylindrical portion 4 is inserted into the threaded hole portion 5 of the nut main body 1. It is formed in the subsequent ring fitting part 6. 9 is a plastic ring made of strong synthetic resin such as polyamide resin that is fitted into the ring fitting part 6, and the plastic ring 9 has an outer wall length larger than an inner wall length. By making the cross section substantially isosceles trapezoidal, both end surfaces are formed into tapered surfaces 7 and 8 that widen outward, and the outer circumferential surface 10 and one tapered surface 7 are connected to the inner circumferential surface of the thin-walled cylindrical portion 4. The tip of the thin-walled cylindrical portion 4 is fitted into the ring fitting portion 6 so as to be in close contact with the tapered end surface 3, and the tip of the thin-walled cylindrical portion 4 is caulked inwardly.
is engaged with the inner part of the other tapered surface 8, so that the plastic ring 9 is pressed outward under the guidance of both tapered surfaces 7 and 8. The inner peripheral surface of the plastic ring 9 needs to be located slightly inside the bottom of the thread groove of the screw hole 5, so it is positioned approximately on the same plane as the thread.

このように構成されたものは、在来のこの種戻
り止めナツトと同様ねじ孔部5にボルトを螺挿し
て使用した場合、ねじ孔部5に続くリング嵌合部
6にプラスチツクス製リング9が嵌合保持されて
いてその内周面にボルトが食い込むので戻り止め
効果を発揮することは在来のこの種戻り止めナツ
トと同様であるが、プラスチツクス製リング9は
その両端面を外側に向け拡がるテーパー面7,8
に形成されており、該プラスチツクス製リング9
を嵌合させるリング嵌合部6はナツト主体1の他
端方部に形成される円錐台形状のテーパー端面3
の外側に設けた肉薄筒部4内にあつてプラスチツ
クス製リング9はその外周面10と一方のテーパ
ー面7を肉薄筒部4の内周面とテーパー端面3に
密接されるように該肉薄筒部4の先端に形成され
る内向きの折曲端部11をもつて外側に加圧され
ているので、ナツト主体1の他端方部の適正位置
に適確に保持されることとなり、内径のばらつき
がなくなるうえにボルトの回転とともにプラスチ
ツクス製リング9が共回りするおそれもなくな
り、また、プラスチツクス製リング9のみが飛び
出すこともなくて所期の締付トルクおよび軸力を
確保できるものとなる。
When used with a bolt screwed into the threaded hole 5, a plastic ring 9 is inserted into the ring fitting part 6 following the threaded hole 5, similar to the conventional detent nut of this type. is fitted and held and the bolt bites into its inner circumferential surface, so it exerts a detent effect similar to the conventional detent nut of this type, but the plastic ring 9 has both end surfaces facing outward. Tapered surfaces 7, 8 that expand toward
The plastic ring 9
The ring fitting part 6 into which the ring fitting part 6 is fitted has a truncated conical tapered end face 3 formed at the other end of the nut main body 1.
The plastic ring 9 is placed inside the thin-walled cylindrical portion 4 provided on the outside of the thin-walled cylindrical portion 4 so that its outer circumferential surface 10 and one tapered surface 7 are in close contact with the inner circumferential surface and tapered end surface 3 of the thin-walled cylindrical portion 4. Since the inwardly bent end 11 formed at the tip of the cylindrical portion 4 is pressurized outward, the nut body 1 is held in an appropriate position at the other end. In addition to eliminating variations in the inner diameter, there is no fear that the plastic ring 9 will rotate with the rotation of the bolt, and the plastic ring 9 will not pop out, making it possible to secure the desired tightening torque and axial force. Become something.

(考案の効果) 本考案は前記説明から明らかなように、プラス
チツクス製リングの両端面を外側に向け拡がるテ
ーパー面に形成するとともに一端面を座面とした
ナツト主体の他端面を該テーパー面に対応するテ
ーパー端面としておくことによつてプラスチツク
ス製リングをナツト主体に強固に嵌合保持させ、
これによつてボルト螺挿時におけるプラスチツク
ス製リングの共回りや飛び出しを適確に防止でき
るので、充分な締付トルクや軸力を確保でき構造
が簡単で量産が容易な利点と相俟ち実用的価値極
めて大なものである。
(Effects of the Invention) As is clear from the above description, the present invention is such that both end surfaces of a plastic ring are formed into tapered surfaces that widen outward, and one end surface is a seat surface, and the other end surface of the nut body is formed into the tapered surface. By creating a tapered end surface that corresponds to
As a result, it is possible to accurately prevent the plastic ring from rotating or popping out when inserting the bolt, so sufficient tightening torque and axial force can be secured, and the structure is simple and mass production is easy. The practical value is extremely great.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本考案の実施例を示す一部切欠正面図で
ある。 1:ナツト主体、2:座面、3:テーパー端
面、4:肉薄筒部、5:ねじ孔部、6:リング嵌
合部、7,8:テーパー面、9:プラスチツクス
製リング、10:外周面、11:折曲端部。
The drawing is a partially cutaway front view showing an embodiment of the present invention. 1: Nut main body, 2: Seat surface, 3: Tapered end surface, 4: Thin cylinder section, 5: Screw hole section, 6: Ring fitting section, 7, 8: Tapered surface, 9: Plastic ring, 10: Outer peripheral surface, 11: bent end.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 一端面を座面2としたナツト主体1の他端面を
円錐台形状のテーパー端面3に形成するとともに
該テーパー端面3の外側にナツト主体1と一連の
肉薄筒部4を設けて該肉薄筒部4内をねじ孔部5
に続くリング嵌合部6に形成し、該リング嵌合部
6には両端面を外側に向け拡がるテーパー面7,
8に形成したプラスチツクス製リング9を嵌合し
てその外周面10の一方のテーパー面7を前記肉
薄筒部4の内周面と前記テーパー端面3に密接さ
せるとともに他方のテーパー面8に前記肉薄筒部
4の先端に形成される内向きの折曲端部11を係
止させたことを特徴とする戻り止めナツト。
One end surface is a seat surface 2, and the other end surface of the nut main body 1 is formed into a truncated conical tapered end surface 3, and a series of thin-walled cylindrical portions 4 are provided on the outside of the tapered end surface 3 with the nut main body 1, and the thin-walled cylindrical portion 4 inside the screw hole 5
The ring fitting part 6 is formed with a tapered surface 7 whose both end surfaces widen outward.
A plastic ring 9 formed in 8 is fitted so that one tapered surface 7 of its outer peripheral surface 10 is brought into close contact with the inner peripheral surface of the thin-walled cylindrical portion 4 and the tapered end surface 3, and the other tapered surface 8 is brought into close contact with the tapered end surface 3. A detent nut characterized in that an inwardly bent end 11 formed at the tip of a thin-walled cylindrical portion 4 is locked.
JP8406783U 1983-06-02 1983-06-02 detent nut Granted JPS59188316U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8406783U JPS59188316U (en) 1983-06-02 1983-06-02 detent nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8406783U JPS59188316U (en) 1983-06-02 1983-06-02 detent nut

Publications (2)

Publication Number Publication Date
JPS59188316U JPS59188316U (en) 1984-12-13
JPS6224815Y2 true JPS6224815Y2 (en) 1987-06-25

Family

ID=30214019

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8406783U Granted JPS59188316U (en) 1983-06-02 1983-06-02 detent nut

Country Status (1)

Country Link
JP (1) JPS59188316U (en)

Also Published As

Publication number Publication date
JPS59188316U (en) 1984-12-13

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