JP2001124043A - Nut - Google Patents

Nut

Info

Publication number
JP2001124043A
JP2001124043A JP30146299A JP30146299A JP2001124043A JP 2001124043 A JP2001124043 A JP 2001124043A JP 30146299 A JP30146299 A JP 30146299A JP 30146299 A JP30146299 A JP 30146299A JP 2001124043 A JP2001124043 A JP 2001124043A
Authority
JP
Japan
Prior art keywords
nut
bolt
nut body
resistance applying
resistance
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.)
Granted
Application number
JP30146299A
Other languages
Japanese (ja)
Other versions
JP3390155B2 (en
Inventor
Takayuki Kasahara
隆之 笠原
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.)
FUJI SEIMITSU KK
Original Assignee
FUJI SEIMITSU KK
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 FUJI SEIMITSU KK filed Critical FUJI SEIMITSU KK
Priority to JP30146299A priority Critical patent/JP3390155B2/en
Publication of JP2001124043A publication Critical patent/JP2001124043A/en
Application granted granted Critical
Publication of JP3390155B2 publication Critical patent/JP3390155B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To provide a nut capable of giving a large rotational resistance to a bolt, certainly preventing this and a bolt fixing an object from loosening, and assuring easy rotating operation of the nut relative to the bolt. SOLUTION: The nut includes a body 2 and a loosening preventing member 3 installed on the nut body 2. The loosening preventing member 3 is equipped with resilient pieces 32b and 32c, which have a pressing part 33 and a resistance giving part 34 formed spirally. When the nut is engaged with a bolt 100 and rotated, the pressing part 33 abuts to an object H to generate pressing, and accordingly the resistance giving part 34 makes displacement and touches the threads 103 of the bolt 100 to give them a resilient force, and thereby the nut and bolt can certainly be prevented from loosening.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本願発明は、ナット、詳しく
は、ボルトに対する緩みを防止できるナットの改良に関
するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improved nut, and more particularly, to an improved nut capable of preventing a bolt from being loosened.

【0002】[0002]

【従来の技術】ナットをボルトに螺合させて締め付ける
ことによってボルトとナットとで被固定物を固定する場
合、被固定物を固定した後に、ナットとボルトとの間に
ネジの緩みが発生する場合がある。そのため、従来か
ら、締め付けたナットとボルトとの間にネジの緩みを防
止するようにしたナットが提案されている。このナット
aは、例えば図10(A)(B)に示すように下面に座面b1
を有するナット本体bと、ナット本体bの上面側に固定
した弾性を有する円板状の緩み防止部材cとを備え、緩
み防止部材cの内周側に、放射状に複数の切り溝c1…
c1を設けることによってその間に複数の弾性片c2…
c2を形成し、その弾性片c2…c2の先端部を抵抗付
与部c3…c3とするとともに、抵抗付与部c3…c3
の内周側にボルト100を通すボルト挿通孔c4を形成
したものである。そして、図11に示すようにナットa
を、下面側からボルト100に螺合させていくと、抵抗
付与部c3…c3がボルト100の雄ネジ101のネジ
山103の斜面に当接して弾性変形し、ネジ山103に
弾性力をかけることによってボルト100にナット本体
bに対する回転抵抗をかける。従って、この状態から、
ナット本体bを、ナット本体bの座面b1が被固定物H
に当接するまで、回転抵抗に抗してボルト100に締め
込んで被固定物Hを固定することにより、緩み防止部材
cの弾性力による回転抵抗によってナット本体bとボル
ト100とのネジの緩みを抑えることができる。しかし
ながら、このものにおいては、抵抗付与部c3…c3を
ボルト100の雄ネジ101のネジ山103の斜面に当
接させて弾性変形させ、その弾性変形に伴う弾性力をか
けるに過ぎないため、ボルト100に十分な回転抵抗を
かけることができない。又、緩み防止部材cの抵抗付与
部c3…c3がボルト100の雄ネジ101にさしかか
るとナット本体bとボルト100とに回転抵抗がかかる
ため、抵抗付与部c3…c3がボルト100の雄ネジ1
01にさしかかってからナット本体bの座面b1が被固
定物Hに当接するまでのナット本体bのボルト100に
対する回転操作にも回転抵抗がかかり、ナット本体bの
回転操作がし難く、殊に、抵抗付与部c3…c3からボ
ルト100にかかる回転抵抗が大きくなればなる程、ナ
ット本体bの回転操作が困難になってしまう。その結
果、このものにおいては、抵抗付与部c3…c3からボ
ルト100にあまり大きな回転抵抗をかけることができ
ず、ナット本体bとボルト100とのネジの緩みを確実
に防止し難いという課題がある。
2. Description of the Related Art When an object to be fixed is fixed with a bolt and a nut by screwing the nut to the bolt and tightening, a loosening of the screw occurs between the nut and the bolt after the object to be fixed is fixed. There are cases. For this reason, conventionally, a nut has been proposed that prevents loosening of a screw between a tightened nut and a bolt. The nut a has a seat b1 on its lower surface as shown in FIGS. 10A and 10B, for example.
, And an elastic disk-shaped loosening prevention member c fixed to the upper surface side of the nut body b. A plurality of cutting grooves c1 are radially formed on the inner peripheral side of the loosening prevention member c.
By providing c1, a plurality of elastic pieces c2 are provided therebetween.
c2, and the tip portions of the elastic pieces c2... c2 are used as resistance applying portions c3... c3, and the resistance applying portions c3.
A bolt insertion hole c4 for passing the bolt 100 is formed on the inner peripheral side of the bolt. Then, as shown in FIG.
Are screwed into the bolt 100 from the lower surface side, the resistance applying portions c3... C3 abut against the slope of the thread 103 of the male screw 101 of the bolt 100 and are elastically deformed, and apply an elastic force to the thread 103. This applies a rotational resistance to the nut body b on the bolt 100. Therefore, from this state,
The nut body b is fixed to the object H by the seat surface b1 of the nut body b.
The bolt H is tightened against the rotation resistance to fix the object H until it comes into contact with the bolt 100, so that the screw between the nut body b and the bolt 100 is loosened by the rotation resistance due to the elastic force of the loosening prevention member c. Can be suppressed. However, in this case, since the resistance applying portions c3... C3 are brought into contact with the slope of the thread 103 of the male screw 101 of the bolt 100 to be elastically deformed and only apply the elastic force accompanying the elastic deformation, 100 cannot have enough rotational resistance. When the resistance applying portions c3... C3 of the loosening prevention member c reach the male screw 101 of the bolt 100, rotational resistance is applied to the nut body b and the bolt 100. Therefore, the resistance applying portions c3.
01, the rotation operation of the nut body b with respect to the bolt 100 from the time when the seat surface b1 of the nut body b comes into contact with the fixed object H also exerts a rotational resistance, and the rotation operation of the nut body b is difficult. The rotational operation of the nut body b becomes more difficult as the rotational resistance applied to the bolt 100 from the resistance applying portions c3... C3 increases. As a result, in this case, there is a problem that it is difficult to apply an excessively large rotational resistance to the bolt 100 from the resistance applying portions c3 to c3, and it is difficult to reliably prevent the screw between the nut body b and the bolt 100 from being loosened. .

【0003】[0003]

【発明が解決しようとする課題】本願発明は、以上の実
情に鑑み提案されたもので、ボルトに大きな回転抵抗を
かけることができて被固定物を固定したナットとボルト
とのネジの緩みを確実に防止でき、しかも、ボルトに対
するナットの回転操作が容易なナットの提供を目的とす
る。
DISCLOSURE OF THE INVENTION The present invention has been proposed in view of the above circumstances, and a large rotational resistance can be applied to a bolt to reduce the loosening of a screw between a nut and a bolt that fixes an object. An object of the present invention is to provide a nut that can be reliably prevented and that can easily rotate the nut with respect to the bolt.

【0004】[0004]

【課題を解決するための手段】本願発明は、以下の特徴
を有するナットを提供することにより上記課題を解決す
る。本願の第1の発明は、ナット本体2と、弾性を有す
る板状の緩み防止部材3とを備えるナット本体2は、雌
ネジ21を備え、この雌ネジ21が、ナット本体2の下
面側からボルト100の雄ネジ101に螺合されて締め
付けられることにより、ナット本体2の下方側に、ナッ
ト本体2とボルト100とで被固定物Hを固定できるよ
うになされる。緩み防止部材3の径内側に、ボルト10
0にナット本体2に対する回転抵抗を付与する抵抗付与
部34が備えられ、この抵抗付与部34がナット本体2
の雌ネジ21の下方側に配位される。更に、緩み防止部
材3に、押圧部33が備えられ、この押圧部33が、ボ
ルト100とナット本体2とで被固定物Hを固定する際
に被固定物Hから押圧されることにより、抵抗付与部3
4が、ナット本体2と螺合したボルト100の雄ネジ1
01を押圧し、この押圧によって、抵抗付与部34がボ
ルト100にナット本体2に対する回転抵抗を付与する
ものである。
The present invention solves the above-mentioned problems by providing a nut having the following features. According to the first invention of the present application, the nut main body 2 including the nut main body 2 and the plate-shaped loosening prevention member 3 having elasticity includes a female screw 21, and the female screw 21 is provided from the lower surface side of the nut main body 2. The object to be fixed H can be fixed to the lower side of the nut main body 2 by the nut main body 2 and the bolt 100 by being screwed and fastened to the male screw 101 of the bolt 100. A bolt 10 is provided inside the diameter of the loosening prevention member 3.
0 is provided with a resistance applying portion 34 for applying a rotational resistance to the nut main body 2.
Is arranged below the female screw 21. Further, the loosening prevention member 3 is provided with a pressing portion 33, and the pressing portion 33 is pressed from the fixed object H when fixing the fixed object H with the bolt 100 and the nut main body 2. Imparting section 3
4 is the male screw 1 of the bolt 100 screwed with the nut body 2
01, and the resistance applying section 34 applies the rotational resistance to the nut body 2 to the bolt 100 by this pressing.

【0005】本願の第2の発明は、本願の第1の発明に
係るナット本体2と、弾性を有する板状の緩み防止部材
3とを備える。ナット本体2は、雌ネジ21を備え、こ
の雌ネジ21が、ナット本体2の下面側からボルト10
0の雄ネジ101に螺合されて締め付けられることによ
り、ナット本体2の下方側に、ナット本体2とボルト1
00とで被固定物Hを固定できるようになされる。緩み
防止部材3の径内側に、ボルト100にナット本体2に
対する回転抵抗を付与する抵抗付与部34が備えられ、
緩み防止部材3の径外側に、ナット本体取付部31が備
えられ、このナット本体取付部31が、ナット本体2の
下面側に取り付けられることにより、抵抗付与部34が
ナット本体2の雌ネジ21の下方側に配位される。更
に、緩み防止部材3における抵抗付与部34とナット本
体取付部31との間に、押圧部33が備えられ、この押
圧部33が、ボルト100とナット本体2とで被固定物
Hを固定する際に被固定物Hから押圧されることによ
り、緩み防止部材3が変形し、この変形によって、抵抗
付与部34が、ナット本体2に螺合したボルト100の
雄ネジ101を押圧することにより、抵抗付与部34が
ボルト100にナット本体2に対する回転抵抗を付与す
るものである。
[0005] A second invention of the present application includes the nut body 2 according to the first invention of the present application, and a plate-shaped loosening prevention member 3 having elasticity. The nut body 2 is provided with a female screw 21.
0, and the nut 1 and the bolt 1 are attached to the lower side of the nut 2
00 and the object H can be fixed. A resistance applying portion 34 for applying a rotational resistance to the nut body 2 to the bolt 100 is provided on the inner side of the loosening prevention member 3,
A nut main body mounting portion 31 is provided on the radial outside of the loosening prevention member 3, and the nut main body mounting portion 31 is mounted on the lower surface side of the nut main body 2, so that the resistance applying portion 34 is connected to the female screw 21 of the nut main body 2. Is coordinated below. Further, a pressing portion 33 is provided between the resistance applying portion 34 and the nut main body mounting portion 31 in the loosening prevention member 3, and the pressing portion 33 fixes the fixed object H with the bolt 100 and the nut main body 2. At this time, the loosening prevention member 3 is deformed by being pressed from the fixed object H, and the resistance applying portion 34 presses the male screw 101 of the bolt 100 screwed to the nut main body 2 by this deformation, The resistance applying part 34 applies the rotational resistance to the nut body 2 to the bolt 100.

【0006】本願の第3の発明は、本願の第1又は2の
発明に係る緩み防止部材3が、円板状のものから構成さ
れ、外周側に、ナット本体取付部31が備えられ、内周
側に、ナット本体取付部31から径内方向に延ばされた
弾性を有する弾性片32a、32b、32cが備えら
れ、弾性片32a、32b、32cが、先端側に抵抗付
与部34を備えるとともに、抵抗付与部34の径外側に
押圧部33を備えたものである。
According to a third invention of the present application, the loosening prevention member 3 according to the first or second invention of the present application is formed of a disk-shaped member, and a nut body mounting portion 31 is provided on the outer peripheral side. On the peripheral side, elastic pieces 32a, 32b, 32c having elasticity extending inward in the radial direction from the nut main body attaching section 31 are provided, and the elastic pieces 32a, 32b, 32c include a resistance applying section 34 on the distal end side. In addition, a pressing portion 33 is provided radially outside the resistance applying portion 34.

【0007】本願の第4の発明は、本願の第1〜第3の
何れかの発明に係るナット本体2の下面側に、被固定物
Hに当接する座面23が備えられ、緩み防止部材3の押
圧部33が、ナット本体2の座面23より下方側に突設
されることにより、ナット本体2とボルト100とで被
固定物Hを固定する際に、被固定物Hに当接して被固定
物Hから押圧されるものである。
According to a fourth aspect of the present invention, there is provided a nut body 2 according to any one of the first to third aspects of the present invention, on a lower surface side of which is provided a seat surface 23 for abutting against an object to be fixed H, and a loosening prevention member. 3 is pressed downward from the seating surface 23 of the nut main body 2 so that when the nut H is fixed with the nut main body 2 and the bolt 100, the pressing portion 33 comes into contact with the fixed object H. And is pressed from the fixed object H.

【0008】本願の第5の発明は、本願の第1〜第3の
何れかの発明に係るナット1が、緩み防止部材3を取り
付けたナット本体2とは別体からなるリング状の押圧操
作部材5を備え、この押圧操作部材5が、緩み防止部材
3の押圧部33と被固定物Hとの間に配位されることに
より、ナット本体2とボルト100とで被固定物Hを固
定する際に、押圧部33が押圧操作部材5を介して被固
定物から押圧されるものである。
According to a fifth aspect of the present invention, the nut 1 according to any one of the first to third aspects of the present invention is a ring-shaped pressing operation which is separate from the nut body 2 to which the loosening prevention member 3 is attached. A member 5 is provided, and the pressing operation member 5 is arranged between the pressing portion 33 of the loosening prevention member 3 and the object H, thereby fixing the object H with the nut body 2 and the bolt 100. At this time, the pressing portion 33 is pressed from the fixed object via the pressing operation member 5.

【0009】本願の第6の発明は、本願の第1〜第5の
いずれかの発明に係る抵抗付与部34が、ボルト100
の雄ネジ101のリードに沿う螺旋状に形成されたもの
である。
According to a sixth aspect of the present invention, the resistance applying section 34 according to any one of the first to fifth aspects of the present invention is configured such that the bolt 100
Is formed in a spiral shape along the lead of the male screw 101.

【0010】本願の第7の発明は、本願の第1〜第6の
いずれかの発明に係る抵抗付与部34が、ボルト100
に対するナット本体2の締め方向に対して前部側となる
周方向の一端側から他端側に、漸次径内方向への突出量
を多くするようにして形成されたものである。
According to a seventh aspect of the present invention, the resistance applying section 34 according to any one of the first to sixth aspects of the present invention is configured such that the bolt 100
From one end in the circumferential direction on the front side with respect to the tightening direction of the nut body 2 with respect to the other end so as to gradually increase the amount of protrusion in the radially inward direction.

【0011】本願の第8の発明は、本願の第1〜第7の
いずれかの発明に係る抵抗付与部34の内周径が、ボル
ト100の雄ネジ101の谷径R2より大きく、且つ、
ボルト100の雄ネジ101のネジ山径R3より小さく
形成され、ボルト100へのナット本体2の螺合に際し
て、抵抗付与部34が、ボルト100の雄ネジ101の
ネジ溝103に入り込み可能とされ、ナット本体2とボ
ルト100とで被固定物Hを固定する際の押圧部33の
押圧に伴って、抵抗付与部34がボルト100の雄ネジ
101に当接して押圧するものである。
According to an eighth aspect of the present invention, the inner diameter of the resistance applying portion 34 according to any one of the first to seventh aspects of the present invention is larger than the root diameter R2 of the male screw 101 of the bolt 100, and
It is formed smaller than the thread diameter R3 of the male screw 101 of the bolt 100, and when the nut body 2 is screwed into the bolt 100, the resistance applying portion 34 can be inserted into the screw groove 103 of the male screw 101 of the bolt 100, With the pressing of the pressing portion 33 when the fixing object H is fixed by the nut body 2 and the bolt 100, the resistance applying portion 34 comes into contact with and presses the male screw 101 of the bolt 100.

【0012】以上のように構成した本願第1〜第4発明
においては、ボルト100とナット本体2とで被固定物
Hを固定する際に押圧部33を、被固定物Hから押圧し
て緩み防止部材3が変形させ、その変形によって、抵抗
付与部34が、ナット本体2に螺合したボルト100の
雄ネジ101を押圧することにより、抵抗付与部34が
ボルト100にナット本体2に対する回転抵抗を付与す
るものとする。こうすることにより、ナット本体2を、
ボルト100に螺合させただけでは、抵抗付与部34が
ナット本体2に螺合したボルト100の雄ネジ101を
押圧することがなく、ボルト100に対するナット本体
2の回転操作を容易なものにできる。一方、ボルト10
0とナット本体2とで被固定物Hを固定する際には、押
圧部33によって緩み防止部材3が強制的に変形させて
抵抗付与部34でナット本体2に螺合したボルト100
の雄ネジ101を押圧するため、大きい回転抵抗をボル
ト100にかけることができ、ナット本体2とボルト1
00とを確実に緩み止めしておくことができる。
In the first to fourth inventions of the present application, when the fixing object H is fixed by the bolt 100 and the nut main body 2, the pressing portion 33 is pressed from the fixing object H to be loosened. The prevention member 3 is deformed, and the deformation causes the resistance applying portion 34 to press the male screw 101 of the bolt 100 screwed to the nut main body 2, so that the resistance applying portion 34 causes the bolt 100 to rotate against the nut main body 2. Shall be given. By doing so, the nut body 2
By simply screwing the nut 100 onto the bolt 100, the resistance applying portion 34 does not press the male screw 101 of the bolt 100 screwed onto the nut body 2, and the rotation operation of the nut body 2 with respect to the bolt 100 can be facilitated. . On the other hand, bolt 10
When the fixing object H is fixed between the nut body 2 and the nut body 2, the loosening prevention member 3 is forcibly deformed by the pressing portion 33 and the bolt 100 screwed to the nut body 2 by the resistance applying portion 34.
To press the male screw 101, a large rotational resistance can be applied to the bolt 100, and the nut body 2 and the bolt 1
00 can be reliably prevented from loosening.

【0013】本願の第5発明においては、押圧操作部材
5を、緩み防止部材3の押圧部33と被固定物Hとの間
に配位させることにより、ナット本体2とボルト100
とで被固定物Hを固定する際に、押圧部33を、押圧操
作部材5を介して被固定物から押圧するものとする。例
えば押圧部33を直接、被固定物Hに当接させて押圧す
る場合は、押圧部33が被固定物Hに当接した後、ナッ
ト本体2の座面23が被固定物Hに当接するまでの間、
押圧部33がナット本体2の回転に伴って共に回転して
被固定物Hの上面を滑るため、被固定物Hの上面に押圧
部33の滑り傷が付く。しかし、この第5発明において
は、ナット1本体2を、ボルト100に螺合させて回転
させていくと、押圧操作部材5の上面に緩み防止部材3
の押圧部33を当接させて押圧させることができ、被固
定物Hの上面に押圧部33の滑り傷が付くようなことを
防止できる。
In the fifth invention of the present application, the nut operating body 5 and the bolt 100 are arranged by arranging the pressing operation member 5 between the pressing portion 33 of the loosening prevention member 3 and the fixed object H.
When the fixing object H is fixed by the above, the pressing portion 33 is pressed from the fixing object via the pressing operation member 5. For example, when the pressing portion 33 is directly contacted with the fixed object H and pressed, the seating surface 23 of the nut body 2 contacts the fixed object H after the pressing portion 33 contacts the fixed object H. Until,
Since the pressing portion 33 rotates together with the rotation of the nut body 2 and slides on the upper surface of the fixed object H, the pressing portion 33 has a sliding scratch on the upper surface of the fixed object H. However, in the fifth invention, when the nut 1 body 2 is screwed into the bolt 100 and rotated, the loosening prevention member 3
Can be brought into contact with and pressed by the pressing portion 33, thereby preventing the pressing portion 33 from being scratched on the upper surface of the object H.

【0014】本願の第6の発明においては、抵抗付与部
34を、ボルト100の雄ネジ101のリードに沿う螺
旋状に形成しているため、ナット本体2をボルト100
に螺合させて回転させても、抵抗付与部34をボルト1
00の雄ネジ101に沿わせて回転させることができ、
ボルト100に対するナット本体2の回転操作を円滑に
行うことができる。
In the sixth aspect of the present invention, since the resistance applying portion 34 is formed in a spiral shape along the lead of the male screw 101 of the bolt 100, the nut body 2 is
Even if it is screwed and rotated to the
00 can be rotated along the male screw 101,
The rotation operation of the nut body 2 with respect to the bolt 100 can be performed smoothly.

【0015】本願の第7の発明においては、抵抗付与部
34を、ボルト100に対するナット本体2の締め方向
に対して前部側となる周方向の一端側から他端側に、漸
次径内方向への突出量を多くするようにして形成してお
く。例えば図8に示すようにボルト100に対するナッ
ト本体2の緩み方向(図示のY方向)に対して前部側と
なる周方向の一端部に、ナット本体取付部31からの距
離V1の長い長部34aを形成し、ボルト100に対す
るナット本体2の締め方向(図示のX方向)に対して後
部側となる周方向の他端部に、長部34aより径内方向
の突出量を少なくしてナット本体取付部31からの距離
V2の短い短部34bを形成するようにしておけば、ナ
ット本体2に固定した緩み防止部材3が、ナット本体2
のボルト100に対する図示の時計方向側の締め方向側
への回転操作に伴って共に回転すると、押圧部33の押
圧に伴う緩み防止部材3の変形に際して、各抵抗付与部
34の長部34a側から順次ボルト100の雄ネジ10
1に当接して弾性変形し、弾性変形させ易いものにで
き、ボルト100の雄ネジ101に確実に弾性力をかけ
ることができる。又、長部34aが、ボルト100に対
するナット本体2の締め方向に対しては後部側に配位
し、ボルト100に対するナット本体2の緩み方向に対
しては前部側に配位しているため、抵抗付与部34から
ボルト100にかかる回転抵抗は、ナット本体2のボル
ト100に対する締め方向側へ回転させる場合に比して
ナット本体2のボルト100に対する締め方向側へ回転
させる場合の方が大きくなる。従って、ナット本体2の
ボルト100に対する締め方向への操作に際しては、小
さい回転抵抗で回転操作でき、ナット本体2の回転操作
を容易にできる一方、ナット本体2とボルト100とで
被固定物Hを固定した後は、ナット本体2のボルト10
0に対する緩み方向側に大きな回転抵抗をかけ、ナット
本体2のボルト100に対する緩みを確実に防止でき
る。
In the seventh aspect of the present invention, the resistance applying portion 34 is gradually moved from one end in the circumferential direction, which is the front side with respect to the tightening direction of the nut body 2 to the bolt 100, to the other end in the radially inward direction. Is formed so as to increase the amount of protrusion to the front. For example, as shown in FIG. 8, a long portion having a long distance V <b> 1 from the nut body attachment portion 31 is provided at one end in the circumferential direction on the front side with respect to the loosening direction of the nut 100 with respect to the bolt 100 (Y direction in the drawing). A nut 34a is formed at the other end in the circumferential direction, which is on the rear side with respect to the direction in which the nut body 2 is tightened with respect to the bolt 100 (the X direction in the drawing). If the short portion 34b having a short distance V2 from the main body mounting portion 31 is formed, the loosening prevention member 3 fixed to the nut main body 2 can be used.
Are rotated together with the rotation of the bolt 100 in the illustrated clockwise direction toward the tightening direction, when the loosening prevention member 3 is deformed due to the pressing of the pressing portion 33, the long side 34a of each resistance applying portion 34 Male screw 10 of bolt 100 in order
1 and is easily elastically deformed by contact with the bolt 1, and the elastic force can be reliably applied to the male screw 101 of the bolt 100. In addition, the long portion 34a is located on the rear side with respect to the tightening direction of the nut body 2 with respect to the bolt 100, and is located on the front side with respect to the loosening direction of the nut body 2 with respect to the bolt 100. The rotation resistance applied to the bolt 100 from the resistance applying part 34 is larger when the nut body 2 is rotated in the tightening direction side with respect to the bolt 100 than when the nut body 2 is rotated in the tightening direction side with respect to the bolt 100. Become. Therefore, when the nut body 2 is operated in the tightening direction with respect to the bolt 100, the rotation operation can be performed with a small rotation resistance, and the rotation operation of the nut body 2 can be easily performed. After fixing, the bolt 10 of the nut body 2
A large rotational resistance is applied to the loosening direction side with respect to 0, so that loosening of the nut body 2 with respect to the bolt 100 can be reliably prevented.

【0016】本願の第8の発明においては、ナット本体
2のボルト100に対する締め方向への操作に際して
は、抵抗付与部34を、ボルト100の雄ネジ101の
ネジ溝103に入り込ませるため、ナット本体2をボル
ト100に殆ど回転抵抗なく回転操作でき、ナット本体
2の回転操作を容易にできる。一方、ナット本体2とボ
ルト100とで被固定物Hを固定した後は、抵抗付与部
34がボルト100の雄ネジ101に当接して押圧して
ボルト100に抵抗をかけ、ナット本体2のボルト10
0に対する緩みを確実に防止できる。
In the eighth aspect of the present invention, when the nut body 2 is operated in the tightening direction with respect to the bolt 100, the resistance applying portion 34 is inserted into the thread groove 103 of the male screw 101 of the bolt 100, 2 can be rotated on the bolt 100 with almost no rotational resistance, and the rotation operation of the nut body 2 can be facilitated. On the other hand, after the fixing object H is fixed with the nut body 2 and the bolt 100, the resistance applying portion 34 abuts against the male screw 101 of the bolt 100 and presses to apply resistance to the bolt 100, and the bolt of the nut body 2 10
Looseness to zero can be reliably prevented.

【0017】[0017]

【発明の実施の形態】以下、図を基に本願発明の一実施
形態を具体的に説明する。図1は、本願発明のナットの
一実施形態の断面図であり、図2は、緩み防止部材の平
面図、図3(A) は、図2のIII −III 線断面図、図3
(B) は、図2のIV−IV線断面図である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the drawings. 1 is a sectional view of an embodiment of the nut of the present invention, FIG. 2 is a plan view of a loosening prevention member, FIG. 3A is a sectional view taken along line III-III of FIG.
FIG. 4B is a sectional view taken along line IV-IV of FIG.

【0018】本願発明のナット1は、ナット本体2と、
緩み防止部材3とを備えている。ナット本体2は、一般
的なナットと略同構成を採り、外周に工具を係合するた
めの正六角形状の工具係合部29を備えている。又、下
面側から上面側に貫通するネジ孔20が備えられ、この
ネジ孔20に、雌ネジ21が刻設されており、この雌ネ
ジ21が、図4に示すボルト100の雄ネジ101にナ
ット本体2の下面側から螺合されるようになされてい
る。ナット本体2の下面側には、ナット本体2とボルト
100とで被固定物H(図4に図示)を固定する際に被
固定物Hに当接する座面23と、座面23の径内側に配
位された緩み防止部材取付部22とが備えてられてい
る。緩み防止部材取付部22は、緩み防止部材3を取り
付けるためのもので、ナット本体2の下面から円形状に
窪ませて形成されている。
The nut 1 of the present invention includes a nut body 2 and
A slack preventing member 3. The nut main body 2 has substantially the same configuration as a general nut, and includes a regular hexagonal tool engaging portion 29 for engaging a tool on the outer periphery. Further, a screw hole 20 penetrating from the lower surface side to the upper surface side is provided, and a female screw 21 is engraved in the screw hole 20, and the female screw 21 is formed in the male screw 101 of the bolt 100 shown in FIG. The nut body 2 is screwed from the lower surface side. On the lower surface side of the nut body 2, a seating surface 23 that comes into contact with the object H when the object H (shown in FIG. 4) is fixed by the nut body 2 and the bolt 100, and a radial inside of the seating surface 23. And an anti-loosening member mounting portion 22 which is arranged at a predetermined position. The loosening prevention member mounting portion 22 is for mounting the loosening prevention member 3, and is formed by being depressed in a circular shape from the lower surface of the nut main body 2.

【0019】緩み防止部材3は、本実施形態では、弾性
を有する素材から円板状に構成されており、外周側に、
ナット本体取付部31が備えられ、緩み防止部材3の内
周側に、弾性を有する三つの弾性片32a、32b、3
2cが備えられている。ナット本体取付部31は、ナッ
ト本体2の緩み防止部材取付部22に取り付けるための
もので、ナット本体2の緩み防止部材取付部22に嵌ま
り込み可能な径で、全周に渡って平板状に形成されてい
る。
In the present embodiment, the loosening prevention member 3 is formed in a disk shape from a material having elasticity.
A nut body mounting portion 31 is provided, and three elastic pieces 32 a, 32 b, 3
2c is provided. The nut body attachment portion 31 is for attaching to the looseness prevention member attachment portion 22 of the nut body 2 and has a diameter capable of fitting into the looseness prevention member attachment portion 22 of the nut body 2 and has a flat shape over the entire circumference. Is formed.

【0020】弾性片32a、32b、32cは、ナット
本体取付部31から径内側に一体的に延設され、周方向
に沿って所定間隔だけ隔てて並設されている。又、各弾
性片32a、32b、32cの外周側には、押圧部33
が備えられ、内周側には、抵抗付与部34が備えられて
いる。押圧部33は、抵抗付与部34…34を操作する
ためのもので、ナット本体取付部31から下方側に折り
曲げられてナット本体取付部31の下方側に突設されて
いる。
The elastic pieces 32a, 32b, 32c are integrally extended radially inward from the nut body attaching portion 31, and are juxtaposed at predetermined intervals along the circumferential direction. A pressing portion 33 is provided on the outer peripheral side of each elastic piece 32a, 32b, 32c.
, And a resistance applying portion 34 is provided on the inner peripheral side. The pressing portion 33 is used to operate the resistance applying portions 34... 34, and is bent downward from the nut main body mounting portion 31 to protrude below the nut main body mounting portion 31.

【0021】抵抗付与部34…34は、押圧部33から
斜め上方側を向くようにして径内側に延ばされるように
して形成されている。抵抗付与部34…34の内周径R
1は、ナット本体2の螺合するボルト100の雄ネジ1
01のネジ山径R2よりも小さく、且つ、ボルト100
の雄ネジ101の谷径R3よりも大きく形成されること
により、その径内側に、ボルトを挿通するボルト挿通用
孔37が形成されるようになされている。又、これらの
抵抗付与部34…34は、ナット本体2の雌ネジ21及
びナット本体2の螺合するボルト100の雄ネジ101
のリードに沿う螺旋状をなすように周方向に並設されて
いる。詳しくは、図2図示の後方側の抵抗付与部32a
の右前端側を始端部35とし、この始端部35から図2
図示の右方側の抵抗付与部32cの右後端側の終端部3
6にかけて、図3(A) 及び図3(B) に示すように反時計
方向に順次、抵抗付与部34…34における押圧部33
からの折り曲げ角度A…Aを大きくすることにより、終
端部36が始端部35よりナット本体2の雌ネジ21及
びボルト100の雄ネジ101のネジの略1ピッチP分
の距離だけ上方位置に配位されている。
The resistance applying portions 34 are formed so as to extend radially inward so as to face diagonally upward from the pressing portion 33. Inner peripheral diameter R of resistance applying portions 34.
1 is a male screw 1 of a bolt 100 to which the nut body 2 is screwed.
01 is smaller than the screw thread diameter R2 and the bolt 100
Is formed to be larger than the root diameter R3 of the male screw 101, so that a bolt insertion hole 37 through which a bolt is inserted is formed inside the diameter. The resistance applying portions 34... 34 are formed with the female screw 21 of the nut body 2 and the male screw 101 of the bolt 100 with which the nut body 2 is screwed.
Are arranged side by side in the circumferential direction so as to form a spiral along the lead. Specifically, the rear-side resistance applying portion 32a shown in FIG.
The right front end side of FIG.
Terminal 3 on the right rear end side of the resistance application section 32c on the right side shown in the figure.
34, the pressing portions 33 of the resistance applying portions 34... 34 sequentially in the counterclockwise direction as shown in FIGS. 3 (A) and 3 (B).
The end portion 36 is disposed at a position higher than the start end portion 35 by a distance of approximately one pitch P between the female screw 21 of the nut body 2 and the male screw 101 of the bolt 100 from the start end 35. Has been ranked.

【0022】そして、この緩み防止部材3は、ナット本
体取付部31がナット本体2の緩み防止部材取付部22
に、取付手段によって取り付けられている。この実施形
態では、ナット本体取付部31を、スポット溶接等の溶
接手段によってナット本体2の緩み防止部材取付部22
に固定するようにしている。この固定状態では、図4に
示すように抵抗付与部34…34が雌ネジ21の下方側
に、雌ネジ21の下端側に連続するように配位され、ナ
ット本体2のボルト100への螺合に際して抵抗付与部
34…34がボルト100の雄ネジ101のネジ溝10
2に、雄ネジ101に当接しないように隙間を隔てて順
次入り込むようになされている。又、この固定状態で、
押圧部33は、ナット本体2の下面より突出されてい
る。
The loosening prevention member 3 is formed such that the nut body mounting portion 31 is provided with the loosening prevention member mounting portion 22 of the nut body 2.
Is attached by an attaching means. In this embodiment, the nut body attaching portion 31 is attached to the nut body 2 by using a welding means such as spot welding.
To fix it. In this fixed state, as shown in FIG. 4, the resistance applying portions 34... 34 are arranged below the female screw 21 so as to be continuous with the lower end of the female screw 21. 34, the screw grooves 10 of the male screw 101 of the bolt 100
2 are sequentially inserted with a gap therebetween so as not to come into contact with the male screw 101. Also, in this fixed state,
The pressing portion 33 protrudes from the lower surface of the nut body 2.

【0023】次に、この実施形態のナット1の機能につ
いて説明する。例えば頭部110と雄ネジ101とを有
する一般的なボルト100とで被固定物Hを固定する場
合は、図4に示すようにボルト100の雄ネジ101
を、被固定物Hに穿設したボルト貫通孔H1に下方側か
ら貫通させて被固定物Hの上方側に突設させ、その突設
させたボルト100の雄ネジ101に、ナット1の雌ネ
ジ21を下面側から螺合させていく。その際、抵抗付与
部34…34が、ボルト100の雄ネジ101のネジ溝
102に、雄ネジ101に当接しないように形成されて
いるとともに、ボルト100の雄ネジ101のリードに
沿う螺旋状に形成されているため、ボルト100の雄ネ
ジ101に螺合させたナット本体2を、ボルト100に
対して回転させても、常時抵抗付与部34…34がボル
ト100の雄ネジ101のネジ溝102に隙間を隔てて
入り込んだ状態に維持され、抵抗付与部34…34から
ボルト100に回転抵抗がかかるようなことを防止で
き、ナット本体2をボルト100に対して円滑に回転操
作できる。
Next, the function of the nut 1 of this embodiment will be described. For example, when the object H is fixed with a general bolt 100 having a head 110 and a male screw 101, as shown in FIG.
Is inserted from below into a bolt through hole H1 drilled in the fixed object H to project upward from the fixed object H, and the male screw 101 of the projected bolt 100 is inserted into the female screw 101 of the nut 1. The screw 21 is screwed from the lower surface side. At this time, the resistance applying portions 34... 34 are formed in the screw grooves 102 of the male screw 101 of the bolt 100 so as not to come into contact with the male screw 101, and the spiral shape along the lead of the male screw 101 of the bolt 100. , Even if the nut body 2 screwed to the male screw 101 of the bolt 100 is rotated with respect to the bolt 100, the resistance applying portions 34... It is possible to prevent the rotation of the bolt body 100 from being applied to the bolt 100 from the resistance applying portions 34... 34, and to smoothly rotate the nut body 2 with respect to the bolt 100.

【0024】更に、ボルト100に螺合したナット1を
回転操作していくと、この図4に示すようにナット1に
おける緩み防止部材3の押圧部33が、ナット本体2の
座面23より先に被固定物Hに当接する。更に、その状
態からナット1を回転操作していくと、緩み防止部材3
における押圧部33とナット本体取付部31との間の部
分が変形し、押圧部33が被固定物Hに上方側に押圧さ
れて押し上げられる。又、その押圧部33の押し上げに
伴って、抵抗付与部34…34も上方側に変位し、抵抗
付与部34…34の先端がボルト100の雄ネジ101
の上方側のネジ山103の斜面に当たり、斜面に沿って
雄ネジ101の谷部104に移動する(15参照)。抵
抗付与部34…34が谷部104まで移動すると、押圧
部33が更に押し上げられても、抵抗付与部34…34
の先端が移動できなくなり、その後の押圧部33の押し
上げに伴って、抵抗付与部34…34が下方側に湾曲す
るように弾性変形しようとし、その結果、ボルト100
の雄ネジ101の下方側のネジ山103の斜面に弾性力
をかける。
Further, when the nut 1 screwed to the bolt 100 is rotated, as shown in FIG. 4, the pressing portion 33 of the loosening prevention member 3 in the nut 1 is located ahead of the seating surface 23 of the nut body 2. Abuts on the object H to be fixed. Further, when the nut 1 is rotated from this state, the loosening prevention member 3
The portion between the pressing portion 33 and the nut main body attaching portion 31 in is deformed, and the pressing portion 33 is pressed upward by the fixed object H and pushed up. 34 are also displaced upward with the pushing of the pressing portion 33, and the distal ends of the resistance applying portions 34.
And moves to the root 104 of the male screw 101 along the slope (see 15). When the resistance applying portions 34 move to the valley portion 104, even if the pressing portion 33 is further pushed up, the resistance applying portions 34.
34 cannot be moved, and as the pressing portion 33 is subsequently pushed up, the resistance applying portions 34... 34 attempt to elastically deform so as to curve downward, and as a result, the bolt 100
An elastic force is applied to the slope of the thread 103 below the male screw 101.

【0025】そして、図5に示すようにナット本体2の
座面23が被固定物Hに当接すると、押圧部33の上方
側への押し上げが止まり、緩み防止部材3は、それ以
上、変形しなくなり、抵抗付与部34…34がボルト1
00の雄ネジ101の谷部104を径内方向に押圧して
弾性力をかけるとともに、雄ネジ101のネジ山103
の斜面を下方側に押圧して弾性力をかけた状態を維持す
る。又、ナット本体2の座面23が被固定物Hに当接し
た状態で、ナット本体2がボルト100に対して回転で
きなくなって、ナット本体2とボルト100との締め付
けが完了する。従って、この状態で、ナット本体2とボ
ルト100とは、緩み防止部材3による弾性力によって
回転抵抗がかかり、振動等がかかっても緩むようなこと
がなく、被固定物Hを強固に固定しておくことができ
る。尚、本実施形態では、押圧部33が被固定物Hに当
接した後、ナット本体2を、ボルト100に対して1/
12回転程度、回転すれば、ナット本体2の座面23が
被固定物Hに当接するように設定しているが、押圧部3
3が被固定物Hに当接した後、ナット本体2の座面23
が被固定物Hに当接するまでに要するボルト100に対
するナット本体2の回転量、換言すれば、ナット本体2
の座面23からの押圧部33の突出量L(図4に図示)
は、適宜変更できる。
When the seat surface 23 of the nut body 2 comes into contact with the object H as shown in FIG. 5, the pushing-up of the pressing portion 33 stops, and the loosening prevention member 3 is further deformed. And the resistance applying portions 34.
00 while pressing the valley 104 of the male screw 101 in the radial direction to apply an elastic force.
Is pressed downward to maintain the state where the elastic force is applied. Further, the nut body 2 cannot rotate with respect to the bolt 100 in a state where the seat surface 23 of the nut body 2 is in contact with the fixed object H, and the tightening of the nut body 2 and the bolt 100 is completed. Therefore, in this state, the nut body 2 and the bolt 100 apply a rotational resistance due to the elastic force of the loosening prevention member 3 and do not loosen even when vibration or the like is applied. Can be kept. In the present embodiment, after the pressing portion 33 comes into contact with the fixed object H, the nut main body 2 is moved 1 /
The seating surface 23 of the nut main body 2 is set so as to contact the fixed object H when it is rotated about 12 rotations.
3 comes into contact with the fixed object H, and then the seat surface 23 of the nut body 2
Of the nut body 2 with respect to the bolt 100 required for the nut body 2 to come into contact with the fixed object H, in other words, the nut body 2
Of the pressing portion 33 from the seating surface 23 of the vehicle (shown in FIG. 4)
Can be changed as appropriate.

【0026】以上のようにして被固定物Hを固定するよ
うにすれば、ナット本体2の座面23が被固定物Hに当
接する直前まで緩み防止部材3による弾性力をボルト1
00にかけずに済み、ボルト100に対するナット本体
2の回転操作を容易なものにできる。
When the fixing object H is fixed as described above, the elastic force of the loosening prevention member 3 is reduced by the bolt 1 until immediately before the seating surface 23 of the nut body 2 contacts the fixing object H.
The rotation operation of the nut main body 2 with respect to the bolt 100 can be facilitated without having to perform the adjustment for 00.

【0027】尚、本実施形態では、押圧部33を、ナッ
ト本体2の座面23より下方に突設させ、押圧部33を
直接、被固定物Hに当接させて押圧するようにしている
が、この形態のものに限らず、例えばリング状の押圧操
作部材5を介して被固定物Hに当接させて押圧するよう
にしても良い。詳しくは、図6に示すように、ナット1
を、ナット1本体2と、ナット1本体2の下面に固定し
た緩み防止部材3と、ナット1本体2と別体のリング状
の押圧操作部材5とから構成する。又、ナット1本体2
の下面における座面23の径内側に、押圧操作部材5を
嵌挿し得る押圧操作部材用嵌挿孔38を、下面から押圧
操作部材5の厚さより深く形成するとともに、その押圧
操作部材用嵌挿孔38に、緩み防止部材3の押圧部33
を配位させる。そして、押圧操作部材5を被固定物Hに
載置しておき、ナット1本体2を、ボルト100に螺合
させて回転させていくと、ナット1本体2の押圧操作部
材用嵌挿孔38に押圧操作部材5が嵌挿し、押圧操作部
材5の上面に緩み防止部材3の押圧部33が当接する。
この状態から更に、ナット1本体2を回転させていく
と、図7に示すように押圧操作部材5がナット1本体2
の押圧操作部材用嵌挿孔38に更に深く入り込んでい
き、緩み防止部材3の押圧部33を上方側に押圧する。
これにより、上述した同様に、抵抗付与部34…34が
ボルト100の雄ネジ101に弾性力をかける。上記実
施形態のように押圧部33を直接、被固定物Hに当接さ
せて押圧する場合は、押圧部33が被固定物Hに当接し
た後、ナット本体2の座面23が被固定物Hに当接する
までの間、押圧部33がナット本体2の回転に伴って共
に回転して被固定物Hの上面を滑るため、被固定物Hの
上面に押圧部33の滑り傷が付くが、このようなリング
状の押圧操作部材5を介して押圧部33を押圧するよう
にすれば、押圧操作部材5の上面に押圧部33の滑り傷
を付け、被固定物Hの上面に押圧部33の滑り傷が付く
ようなことを防止できる。
In the present embodiment, the pressing portion 33 is provided so as to protrude below the seating surface 23 of the nut main body 2 so that the pressing portion 33 is brought into direct contact with the object H and pressed. However, the present invention is not limited to this embodiment. For example, the pressing member 5 may be brought into contact with the object H via the ring-shaped pressing member 5 and pressed. Specifically, as shown in FIG.
Is composed of a nut 1 main body 2, a loosening prevention member 3 fixed to the lower surface of the nut 1 main body 2, and a ring-shaped pressing operation member 5 separate from the nut 1 main body 2. Also, nut 1 body 2
A pressing operation member insertion hole 38 into which the pressing operation member 5 can be inserted is formed deeper than the thickness of the pressing operation member 5 from the lower surface inside the radially inner side of the seating surface 23 on the lower surface of the press operation member 5. The pressing portion 33 of the loosening prevention member 3 is inserted into the hole 38.
Is coordinated. Then, the pressing operation member 5 is placed on the fixed object H, and the nut 1 main body 2 is screwed into the bolt 100 and is rotated. The pressing operation member 5 is fitted and inserted, and the pressing portion 33 of the loosening prevention member 3 contacts the upper surface of the pressing operation member 5.
When the nut 1 main body 2 is further rotated from this state, as shown in FIG.
And presses the pressing portion 33 of the loosening prevention member 3 upward.
As a result, similarly to the above, the resistance applying portions 34... 34 apply an elastic force to the male screw 101 of the bolt 100. In a case where the pressing portion 33 is directly contacted with the fixed object H and pressed as in the above embodiment, after the pressing portion 33 contacts the fixed object H, the seating surface 23 of the nut body 2 is fixed. Until the pressing portion 33 contacts the object H, the pressing portion 33 rotates together with the rotation of the nut body 2 and slides on the upper surface of the fixed object H, so that the pressing portion 33 has a sliding scratch on the upper surface of the fixed object H. However, if the pressing portion 33 is pressed through such a ring-shaped pressing operation member 5, the upper surface of the pressing operation member 5 is scratched by the pressing portion 33, and the upper surface of the fixed object H is pressed. It is possible to prevent the sliding damage of the portion 33.

【0028】又、本実施形態では、緩み防止部材3とナ
ット本体2との取付手段として、スポット溶接の溶接手
段を採用しているが、溶接手段による形態のものに限ら
ず、例えば図6、図7に示すように、ナット本体2の一
部をカシメ加工して緩み防止部材3を取り付けるように
しても良く、適宜変更できる。また、本実施形態では、
緩み防止部材3とナット本体2とを取り付けた固定した
状態で、ナット本体2のボルト100への螺合に際し抵
抗付与部34…34がボルト100の雄ネジ101のネ
ジ溝102に、雄ネジ101に当接しないように隙間を
隔てて順次入り込むようにしているが、抵抗付与部34
…34がボルト100の雄ネジ101のネジ溝102
に、雄ネジ101に当接しながら入る込ませるようにし
ても良い。又、雄ネジ101に当接しながら入る込ませ
る場合において、ナット本体2のボルト100への螺合
に際し、抵抗付与部34…34が変形しない程度に雄ネ
ジ101に当接しておくのが好ましく、抵抗付与部34
…34が変形しない程度であれば抵抗付与部34…34
からボルト100に回転抵抗が殆どかからず、ナット本
体2をボルト100に対して回転操作し難くなるような
ことを防止できる。ただし、この場合でも、抵抗付与部
34…34と雄ネジ101との当接による抵抗がかかる
ので、上記実施形態のように抵抗付与部34…34をボ
ルト100の雄ネジ101のネジ溝102に、雄ネジ1
01に当接しないように隙間を隔てて順次入り込ませる
のが、ナット本体2のボルト100への螺合に際し抵抗
付与部34…34からボルト100に全く回転抵抗がか
からなくできる点で、より好ましい。
In this embodiment, spot welding is used as a means for attaching the loosening prevention member 3 to the nut body 2. However, the present invention is not limited to the form using the welding means. As shown in FIG. 7, a part of the nut body 2 may be caulked to attach the loosening prevention member 3, and may be changed as appropriate. In the present embodiment,
With the loosening prevention member 3 and the nut main body 2 attached and fixed, when the nut main body 2 is screwed into the bolt 100, the resistance applying portions 34... 34 are inserted into the screw groove 102 of the male screw 101 of the bolt 100 and the male screw 101. Are inserted sequentially with a gap between them so that they do not contact the
... 34 is a screw groove 102 of a male screw 101 of a bolt 100
Alternatively, it may be inserted while abutting on the male screw 101. When the nut is inserted into the male screw 101 while being in contact with the male screw 101, it is preferable that the nut body 2 is abutted against the male screw 101 so as not to deform the resistance applying portions 34. Resistance applying section 34
.. 34 are of such a degree that they do not deform.
Thus, it is possible to prevent the rotation resistance from being hardly applied to the bolt 100, thereby making it difficult to rotate the nut body 2 with respect to the bolt 100. However, even in this case, since the resistance is applied due to the contact between the resistance applying portions 34... 34 and the male screw 101, the resistance applying portions 34. , Male screw 1
When the nut body 2 is screwed into the bolt 100 in order to prevent the bolt 100 from coming into contact with the bolt 100, no rotational resistance is applied to the bolt 100 from the resistance applying portions 34. preferable.

【0029】また、本実施形態では、緩み防止部材3の
抵抗付与部34…34各々を、周方向に、ナット本体取
付部31から径内側に均等に突出させてナット本体取付
部31からの距離を同じにしているが、例えば図8に示
すように抵抗付与部34…34各々を、ナット本体2の
ボルト100に対する緩み方向(図示のY方向)の前部
側となる周方向の反時計方向側の一端側にナット本体取
付部31から径内方向側への突出量を順次多くして、各
抵抗付与部34…34の周方向におけるナット本体2の
緩み方向の前部側となる反時計方向側の一端部に、ナッ
ト本体取付部31からの距離V1の長い長部34aを形
成し、ナット本体2のボルト100に対する締め方向側
(図示のX方向)となる周方向の時計方向側の他端部
に、長部34aより径内方向の突出量を少なくしてナッ
ト本体取付部31からの距離V2の短い短部34bを形
成するようにしても良い。こうすることにより、ナット
本体2に固定した緩み防止部材3が、ナット本体2のボ
ルト100に対する図示の時計方向の締め方向側への回
転操作に伴って共に回転すると、押圧部33の押圧に伴
う緩み防止部材3の変形に際して、各抵抗付与部34の
長部34a側から順次ボルト100の雄ネジ101に当
接して弾性変形し、弾性変形させ易いものにでき、ボル
ト100の雄ネジ101に確実に弾性力をかけることが
できる。又、長部34aが、ナット本体2のボルト10
0に対する締め方向に対しては後方側に位置し、ナット
本体2のボルト100に対する緩み方向に対しては前方
側に位置するため、抵抗付与部34からボルト100に
かかる回転抵抗は、ナット本体2のボルト100に対す
る締め方向側へ回転する場合に比してナット本体2のボ
ルト100に対する締め方向側へ回転する場合の方が大
きくなる。従って、ナット本体2のボルト100に対す
る締め方向への操作に際しては、小さい回転抵抗で回転
操作でき、ナット本体2の回転操作を容易にでき、一
方、ナット本体2とボルト100とで被固定物Hを固定
した後は、ナット本体2のボルト100に対する緩み方
向側に大きな回転抵抗をかけ、ナット本体2のボルト1
00に対する緩みを防止できる。
In this embodiment, each of the resistance applying portions 34... 34 of the loosening prevention member 3 is evenly projected radially inward from the nut main body mounting portion 31 in the circumferential direction so that the distance from the nut main body mounting portion 31 is increased. 8, for example, as shown in FIG. 8, each of the resistance applying portions 34... 34 is formed in a counterclockwise circumferential direction on the front side in the loosening direction (Y direction in the drawing) of the nut body 2 with respect to the bolt 100. The amount of protrusion from the nut body attachment portion 31 to the radially inward side is sequentially increased at one end side of the nut body 2 so that the counterclockwise movement of the nut body 2 in the circumferential direction of the resistance applying portions 34. A long portion 34a having a long distance V1 from the nut main body attachment portion 31 is formed at one end on the direction side, and a clockwise side in the circumferential direction which is the tightening direction side (X direction in the drawing) of the nut main body 2 with respect to the bolt 100. At the other end, from the long part 34a By reducing the amount of projection of the inner direction may be formed a short end 34b of the distance V2 from the nut body mounting portion 31. By doing so, when the loosening prevention member 3 fixed to the nut main body 2 rotates together with the rotation operation of the bolt 100 of the nut main body 2 in the clockwise tightening direction shown in the figure, the pressing unit 33 is pressed. When the loosening prevention member 3 is deformed, the resistance imparting portion 34 is sequentially contacted with the male screw 101 of the bolt 100 from the long portion 34a side to be elastically deformed and easily elastically deformed. The elastic force can be applied to. In addition, the long portion 34 a is the bolt 10 of the nut body 2.
0, and is located on the front side with respect to the direction in which the nut body 2 is loosened with respect to the bolt 100. Therefore, the rotational resistance applied to the bolt 100 from the resistance applying portion 34 is limited to the nut body 2 The rotation of the nut body 2 in the tightening direction of the bolt 100 is larger than the rotation of the nut body 2 in the tightening direction of the bolt 100. Accordingly, when the nut body 2 is operated in the tightening direction with respect to the bolt 100, the rotation operation can be performed with a small rotation resistance, and the rotation operation of the nut body 2 can be easily performed. Is fixed, a large rotational resistance is applied to the side of the nut body 2 in the loosening direction with respect to the bolt 100, and the bolt 1 of the nut body 2
00 can be prevented from loosening.

【0030】又、緩み防止部材3の押圧部33は、折り
曲げ形成して下方側に突設させた形態のものに限らず、
例えば図9に示すように弾性片32b、32cをナット
本体取付部31から折り曲げて斜め下方側に真っ直ぐ延
ばし、その弾性片32b、32cの径外側の部分を押圧
部33とし、その押圧部33を、押圧操作部材5の上面
に設けた突起51によって押圧することにより、弾性片
32b、32cを変形させて弾性片32b、32cの先
端側に形成した抵抗付与部34をボルト100の雄ネジ
101に当接させて弾性力をかけるようにしても良い。
The pressing portion 33 of the loosening prevention member 3 is not limited to the one formed by bending and projecting downward.
For example, as shown in FIG. 9, the elastic pieces 32 b and 32 c are bent from the nut main body attaching portion 31 and extend straight obliquely downward, and a portion outside the diameter of the elastic pieces 32 b and 32 c is used as a pressing portion 33. By pressing the protrusions 51 provided on the upper surface of the pressing operation member 5 to deform the elastic pieces 32b and 32c, the resistance applying portion 34 formed on the distal end side of the elastic pieces 32b and 32c is attached to the male screw 101 of the bolt 100. You may make it contact and apply an elastic force.

【0031】更に、緩み防止部材3の抵抗付与部34
は、ボルト100の雄ネジ101の谷部104及びネジ
山103の斜面を押圧する形態のものに限らず、図9に
示すようにボルト100の雄ネジ101のネジ山103
の斜面だけを押圧するようにしても良い。ただし、その
場合は、ボルト100の雄ネジ101の谷部104及び
ネジ山103の斜面を押圧する場合に比して抵抗付与部
34による回転抵抗が小さくなるので、上記実施形態の
ようにボルト100の雄ネジ101の谷部104及びネ
ジ山103の斜面を押圧するようにしておく方が有利で
ある。
Further, the resistance applying portion 34 of the loosening prevention member 3
Is not limited to a configuration in which the valley 104 of the male screw 101 of the bolt 100 and the slope of the screw thread 103 are pressed, and as shown in FIG.
May be pressed. However, in this case, the rotation resistance by the resistance applying portion 34 is smaller than when the valley 104 of the male screw 101 and the slope of the screw thread 103 of the bolt 100 are pressed. It is more advantageous to press the valley 104 of the male screw 101 and the slope of the thread 103.

【0032】又、本実施形態では、緩み防止部材3の抵
抗付与部34…34を、ボルト100とナット本体2と
の螺合に際し、押圧部33が押圧されていない状態で
は、ボルト100の雄ネジ101に当接しないようにし
ているが、この形態のもの限らず、抵抗付与部34…3
4をボルト100の雄ネジ101に多少当接するように
しても良い。この場合でも、抵抗付与部34…34がボ
ルト100の雄ネジ101のリードに沿ってナット本体
2と共に回転するため、ナット本体2をボルト100に
対して小さい回転抵抗で回転させることができる。
In this embodiment, when the bolts 100 and the nut body 2 are screwed together with the resistance applying portions 34... 34 of the loosening prevention member 3, the male members of the bolt 100 are not pressed. Although it does not abut against the screw 101, the present invention is not limited to this form, and the resistance applying portions 34.
4 may slightly contact the male screw 101 of the bolt 100. Also in this case, since the resistance applying portions 34... 34 rotate with the nut main body 2 along the leads of the male screw 101 of the bolt 100, the nut main body 2 can be rotated with a small rotational resistance with respect to the bolt 100.

【0033】一方、本実施形態では、三つの弾性片32
a、32b、32cから構成しているが、弾性片32
a、32b、32cの数量は、特に限定されない。又、
弾性片32a、32b、32cは、所定の間隔を隔てて
並設するものに限らず、例えば切り溝によって弾性片3
2a、32b、32cを分離し、弾性片32a、32
b、32c同士間に殆ど間隔のないようにして並設させ
るようにしても良く、適宜変更できる。
On the other hand, in this embodiment, three elastic pieces 32
a, 32b, and 32c.
The numbers of a, 32b, and 32c are not particularly limited. or,
The elastic pieces 32a, 32b, and 32c are not limited to those arranged side by side at a predetermined interval.
2a, 32b, and 32c are separated, and elastic pieces 32a, 32
b and 32c may be juxtaposed so that there is almost no space between them, and can be changed as appropriate.

【0034】また、本実施形態では、緩み防止部材3の
抵抗付与部34…34を、右ネジ用とし、右ネジのリー
ドに沿うらせん状に形成しているが、左ネジ用として実
施することもでき、その場合は、抵抗付与部34…34
を、左ネジのリードに沿うらせん状に形成すれば良い。
In this embodiment, the resistance applying portions 34... 34 of the loosening prevention member 3 are formed for the right-handed screw and formed in a spiral shape along the lead of the right-handed screw. In that case, the resistance applying sections 34... 34
May be formed in a spiral shape along the lead of the left-hand thread.

【0035】一方、本願発明のナット1を螺合させるボ
ルト100は、頭部110を有するものに限らず、雄ネ
ジを有するものに使用でき、例えばアンカーボルト等に
も使用できるものである。
On the other hand, the bolt 100 for screwing the nut 1 of the present invention can be used not only for the one having the head 110 but also for one having a male screw, for example, an anchor bolt.

【0036】[0036]

【発明の効果】以上、本願発明は、ナット本体2を、ボ
ルト100に螺合させただけでは、抵抗付与部34がナ
ット本体2に螺合したボルト100の雄ネジ101を押
圧することがなく、ボルト100に対するナット本体2
の回転操作を容易なものにできる。一方、ボルト100
とナット本体2とで被固定物Hを固定する際には、押圧
部33によって緩み防止部材3が強制的に変形させて抵
抗付与部34でナット本体2に螺合したボルト100の
雄ネジ101を押圧するため、大きい回転抵抗をボルト
100にかけることができ、ナット本体2とボルト10
0とを確実に緩み止めしておくことができる。
As described above, according to the present invention, the resistance applying portion 34 does not press the male screw 101 of the bolt 100 screwed to the nut body 2 only by screwing the nut body 2 to the bolt 100. , Nut body 2 for bolt 100
Can be easily rotated. On the other hand, bolt 100
When the fixing object H is fixed between the nut body 2 and the nut body 2, the loosening prevention member 3 is forcibly deformed by the pressing portion 33, and the male screw 101 of the bolt 100 screwed to the nut body 2 by the resistance applying portion 34. , A large rotational resistance can be applied to the bolt 100, and the nut body 2 and the bolt 10
0 can be reliably prevented from loosening.

【0037】本願の第5発明は、押圧操作部材5を、緩
み防止部材3の押圧部33と被固定物Hとの間に配位さ
せることにより、押圧操作部材5の上面に緩み防止部材
3の押圧部33を当接させて押圧させることができ、被
固定物Hの上面に押圧部33の滑り傷が付くようなこと
を防止できる。
According to the fifth invention of the present application, the pressing operation member 5 is arranged between the pressing portion 33 of the loosening prevention member 3 and the object H, so that the loosening prevention member 3 is provided on the upper surface of the pressing operation member 5. Can be brought into contact with and pressed by the pressing portion 33, thereby preventing the pressing portion 33 from being scratched on the upper surface of the object H.

【0038】本願の第6の発明は、抵抗付与部34を、
ボルト100の雄ネジ101のリードに沿う螺旋状に形
成しておくことにより、ナット本体2をボルト100に
螺合させて回転させても、抵抗付与部34をボルト10
0の雄ネジ101に沿わせて回転させることができ、ボ
ルト100に対するナット本体2の回転操作を円滑に行
うことができる。
According to a sixth aspect of the present invention, the resistance applying section 34
By forming the bolt 100 in a spiral shape along the lead of the male screw 101, even if the nut main body 2 is screwed and rotated with the bolt 100, the resistance applying portion 34 can be connected to the bolt 10.
The nut 100 can be rotated along the 0 male screw 101, and the rotation operation of the nut body 2 with respect to the bolt 100 can be performed smoothly.

【0039】本願の第7の発明は、抵抗付与部34を、
ボルト100に対するナット本体2の締め方向に対して
前部側となる周方向の一端側から他端側に、漸次径内方
向への突出量を多くするようにして形成しておくことに
より、押圧部33の押圧に伴う緩み防止部材3の変形に
際して、各抵抗付与部34の他端側から順次ボルト10
0の雄ネジ101に当接して弾性変形し、弾性変形させ
易いものにでき、ボルト100の雄ネジ101に確実に
弾性力をかけることができる。又、ナット本体2のボル
ト100に対する締め方向への操作に際しては、小さい
回転抵抗で回転操作でき、ナット本体2の回転操作を容
易にできる一方、ナット本体2とボルト100とで被固
定物Hを固定した後は、ナット本体2のボルト100に
対する緩み方向側に大きな回転抵抗をかけ、ナット本体
2のボルト100に対する緩みを確実に防止できる。
According to a seventh aspect of the present invention, the resistance applying section 34
Pressing is performed by gradually increasing the amount of protrusion in the radially inward direction from one end in the circumferential direction, which is the front side with respect to the tightening direction of the nut body 2 with respect to the bolt 100, from the other end. When the loosening prevention member 3 is deformed due to the pressing of the portion 33, the bolts 10 are sequentially arranged from the other end of each resistance applying portion 34.
The male screw 101 of the bolt 100 can be elastically deformed by being brought into contact with the male screw 101 and easily elastically deformed. Further, when the nut body 2 is operated in the tightening direction with respect to the bolt 100, the rotation operation can be performed with a small rotation resistance and the rotation operation of the nut body 2 can be easily performed. After the fixation, a large rotational resistance is applied to the nut body 2 in the loosening direction side with respect to the bolt 100, and the loosening of the nut body 2 with respect to the bolt 100 can be reliably prevented.

【0040】本願の第8の発明は、ナット本体2とボル
ト100との螺合に際し、ナット本体2をボルト100
に殆ど回転抵抗なく回転操作でき、ナット本体2の回転
操作を容易にできる。一方、ナット本体2とボルト10
0とで被固定物Hを固定した後は、抵抗付与部34がボ
ルト100の雄ネジ101に当接して押圧してボルト1
00に抵抗をかけ、ナット本体2のボルト100に対す
る緩みを確実に防止できる。
According to an eighth aspect of the present invention, when the nut body 2 and the bolt 100 are screwed together, the nut body 2 is
The rotation operation can be performed with almost no rotation resistance, and the rotation operation of the nut body 2 can be easily performed. On the other hand, nut body 2 and bolt 10
After the fixing object H is fixed at 0, the resistance applying portion 34 comes into contact with the male screw 101 of the bolt 100 and presses it to
A resistance is applied to 00, and loosening of the nut body 2 with respect to the bolt 100 can be reliably prevented.

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

【図1】本願発明のナットの一実施形態の断面図であ
る。
FIG. 1 is a sectional view of an embodiment of a nut according to the present invention.

【図2】緩み防止部材の平面図である。FIG. 2 is a plan view of a loosening prevention member.

【図3】(A) は、図2のIII −III 線断面図であり、
(B) は、図2のIV−IV線断面図である。
FIG. 3A is a sectional view taken along line III-III in FIG. 2;
FIG. 4B is a sectional view taken along line IV-IV of FIG.

【図4】本願発明のナットをボルトに螺合させた状態の
断面図である。
FIG. 4 is a sectional view showing a state where the nut of the present invention is screwed into a bolt.

【図5】ナットを締め付けてボルトとナットとで被固定
物を固定した状態の断面図である。
FIG. 5 is a cross-sectional view of a state in which a nut is tightened to fix an object to be fixed with a bolt and a nut.

【図6】他の実施形態のナットをボルトに螺合させた状
態の断面図である。
FIG. 6 is a sectional view of a state where a nut according to another embodiment is screwed into a bolt.

【図7】他の実施形態のナットを締め付けてボルトとナ
ットとで被固定物を固定した状態の断面図である。
FIG. 7 is a cross-sectional view showing a state in which a nut is tightened to fix an object to be fixed with a bolt and a nut according to another embodiment.

【図8】緩み防止部材の他の実施形態の平面図である。FIG. 8 is a plan view of another embodiment of a loosening prevention member.

【図9】更に他の実施形態の緩み防止部材をナット本体
に取付けてボルトに螺合させた状態の断面図である。
FIG. 9 is a cross-sectional view of a state in which a loosening prevention member according to still another embodiment is attached to a nut body and screwed to a bolt.

【図10】(A) は、従来のナットの平面図、(B) は、図
10(A) のI −I 線断面図である。
10 (A) is a plan view of a conventional nut, and FIG. 10 (B) is a cross-sectional view taken along line II of FIG. 10 (A).

【図11】従来のナットをボルトに螺合させた状態の断
面図である。
FIG. 11 is a sectional view showing a state in which a conventional nut is screwed into a bolt.

【符号の説明】[Explanation of symbols]

1 ナット 2 ナット本体 3 緩み防止部材 32a、32b、32c 弾性片 33 押圧部 34 抵抗付与部 100 ボルト DESCRIPTION OF SYMBOLS 1 Nut 2 Nut main body 3 Loose prevention member 32a, 32b, 32c Elastic piece 33 Pressing part 34 Resistance applying part 100 Bolt

Claims (8)

【特許請求の範囲】[Claims] 【請求項1】ナット本体(2) と、弾性を有する板状の緩
み防止部材(3) とを備え、 ナット本体(2) が、雌ネジ(21)を備え、この雌ネジ(21)
が、ナット本体(2) の下面側からボルト(100) の雄ネジ
(101) に螺合されて締め付けられることにより、ナット
本体(2) の下方側に、ナット本体(2) とボルト(100) と
で被固定物(H)を固定できるようになされ、 緩み防止部材(3) の径内側に、ボルト(100) にナット本
体(2) に対する回転抵抗を付与する抵抗付与部(34)が備
えられ、この抵抗付与部(34)がナット本体(2)の雌ネジ
(21)の下方側に配位され、 更に、緩み防止部材(3) に、押圧部(33)が備えられ、こ
の押圧部(33)が、ボルト(100) とナット本体(2) とで被
固定物(H) を固定する際に被固定物(H) から押圧される
ことにより、抵抗付与部(34)が、ナット本体(2) と螺合
したボルト(100) の雄ネジ(101) を押圧し、この押圧に
よって、抵抗付与部(34)がボルト(100)にナット本体(2)
に対する回転抵抗を付与するものとされたことを特徴
とするナット。
1. A nut body (2) and an elastic plate-shaped loosening prevention member (3). The nut body (2) has a female screw (21).
Is the male screw of the bolt (100) from the lower side of the nut body (2).
(101) is screwed and tightened, so that the object (H) can be fixed with the nut body (2) and the bolt (100) below the nut body (2) to prevent loosening. Inside the diameter of the member (3), a bolt (100) is provided with a resistance applying section (34) for applying rotational resistance to the nut body (2), and the resistance applying section (34) is provided on the female part of the nut body (2). screw
(21), the loosening prevention member (3) is further provided with a pressing portion (33), and the pressing portion (33) is fixed by the bolt (100) and the nut body (2). When the fixing object (H) is pressed from the fixing object (H) when fixing the fixing object (H), the resistance applying part (34) is screwed into the nut (2) with the male screw (101) of the bolt (100). ), And the resistance causes the resistance applying section (34) to be attached to the bolt (100) by the nut body (2).
A nut characterized by imparting rotational resistance to the nut.
【請求項2】ナット本体(2) と、弾性を有する板状の緩
み防止部材(3) とを備え、 ナット本体(2) が、雌ネジ(21)を備え、この雌ネジ(21)
が、ナット本体(2) の下面側からボルト(100) の雄ネジ
(101) に螺合されて締め付けられることにより、ナット
本体(2) の下方側に、ナット本体(2) とボルト(100) と
で被固定物(H)を固定できるようになされ、 緩み防止部材(3) の径内側に、ボルト(100) にナット本
体(2) に対する回転抵抗を付与する抵抗付与部(34)が備
えられ、緩み防止部材(3) の径外側に、ナット本体取付
部(31)が備えられ、このナット本体取付部(31)が、ナッ
ト本体(2) の下面側に取り付けられることにより、抵抗
付与部(34)がナット本体(2) の雌ネジ(21)の下方側に配
位され、 更に、緩み防止部材(3) における抵抗付与部(34)とナッ
ト本体取付部(31)との間に、押圧部(33)が備えられ、こ
の押圧部(33)が、ボルト(100) とナット本体(2) とで被
固定物(H) を固定する際に被固定物(H) から押圧される
ことにより、緩み防止部材(3) が変形し、この変形によ
って、抵抗付与部(34)が、ナット本体(2) と螺合したボ
ルト(100) の雄ネジ(101) を押圧することにより、抵抗
付与部(34)がボルト(100) にナット本体(2) に対する回
転抵抗を付与するものとされたことを特徴とするナッ
ト。
2. A nut body (2) and an elastic plate-shaped loosening prevention member (3). The nut body (2) has a female screw (21).
Is the male screw of the bolt (100) from the lower side of the nut body (2).
(101) is screwed and tightened, so that the object (H) can be fixed with the nut body (2) and the bolt (100) below the nut body (2) to prevent loosening. Inside the member (3), a bolt (100) is provided with a resistance applying portion (34) for applying rotational resistance to the nut body (2) .On the outside of the anti-loosening member (3), a nut body mounting portion is provided. (31) is provided, and this nut body mounting portion (31) is mounted on the lower surface side of the nut body (2), so that the resistance applying portion (34) is formed on the female screw (21) of the nut body (2). A pressing portion (33) is provided between the resistance applying portion (34) of the loosening prevention member (3) and the nut main body mounting portion (31), and the pressing portion (33) When the fixing object (H) is fixed by the bolt (100) and the nut body (2), the loosening prevention member (3) is deformed by being pressed from the fixing object (H). By When the resistance applying section (34) presses the male screw (101) of the bolt (100) screwed into the nut body (2), the resistance applying section (34) attaches the bolt (100) to the nut body (2). A nut characterized by imparting rotational resistance to the nut.
【請求項3】緩み防止部材(3) が、円板状のものから構
成され、外周側に、ナット本体取付部(31)が備えられ、
内周側に、ナット本体取付部(31)から径内方向に延ばさ
れた弾性を有する弾性片(32a)(32b)(32c) が備えられ、
弾性片(32a)(32b)(32c) が、先端側に抵抗付与部(34)を
備えるとともに、抵抗付与部(34)の径外側に押圧部(33)
を備えたものであることを特徴とする請求項1又は2記
載のナット。
3. A loosening prevention member (3) is formed of a disk-shaped member, and a nut body mounting portion (31) is provided on an outer peripheral side,
On the inner peripheral side, elastic pieces (32a) (32b) (32c) having elasticity extended inward in the radial direction from the nut body attaching portion (31) are provided,
The elastic pieces (32a), (32b), and (32c) have a resistance applying portion (34) on the distal end side, and a pressing portion (33) on the radial outside of the resistance applying portion (34).
The nut according to claim 1 or 2, wherein the nut is provided.
【請求項4】ナット本体(2) の下面側に、被固定物(H)
に当接する座面(23)が備えられ、緩み防止部材(3) の押
圧部(33)が、ナット本体(2) の座面(23)より下方側に突
設されることにより、ナット本体(2) とボルト(100) と
で被固定物(H) を固定する際に、被固定物(H) に当接し
て被固定物(H) から押圧されるものであることを特徴と
する請求項1〜3のいずれかに記載のナット。
4. An object to be fixed (H) is provided on the lower surface of the nut body (2).
The nut body (2) is provided with a seating surface (23) that comes into contact with the nut body (2), and the pressing portion (33) of the loosening prevention member (3) is protruded below the seating surface (23) of the nut body (2). (2) When fixing the fixed object (H) with the bolt (100), the fixed object (H) comes into contact with the fixed object (H) and is pressed from the fixed object (H). The nut according to claim 1.
【請求項5】上記ナット(1) が、緩み防止部材(3) を取
り付けたナット本体(2) と別体からなるリング状の押圧
操作部材(5) を備え、この押圧操作部材(5)が、緩み防
止部材(3) の押圧部(33)と被固定物(H) との間に配位さ
れることにより、ナット本体(2) とボルト(100) とで被
固定物(H) を固定する際に、押圧部(33)が押圧操作部材
(5) を介して被固定物から押圧されるものであることを
特徴とする請求項1〜3のいずれかに記載のナット。
The nut (1) includes a ring-shaped pressing member (5) which is formed separately from a nut body (2) to which a loosening prevention member (3) is attached. Is disposed between the pressing portion (33) of the loosening prevention member (3) and the fixed object (H), so that the nut body (2) and the bolt (100) fix the fixed object (H). When fixing the pressing member (33), the pressing operation member
The nut according to any one of claims 1 to 3, wherein the nut is pressed from an object to be fixed via (5).
【請求項6】抵抗付与部(34)が、ボルト(100) の雄ネジ
(101) のリードに沿う螺旋状に形成されたものであるこ
とを特徴とする請求項1〜5のいずれかに記載のナッ
ト。
6. A bolt (100) having a resistance applying portion (34) formed of a male screw.
The nut according to any one of claims 1 to 5, wherein the nut is formed in a spiral shape along the lead of (101).
【請求項7】抵抗付与部(34)が、ボルト(100) に対する
ナット本体(2) の締め方向に対して前部側となる周方向
の一端側から他端側に、漸次径内方向への突出量を多く
するようにして形成されたものであることを特徴とする
請求項1〜6のいずれかに記載のナット。
7. A resistance applying portion (34) is gradually moved radially inward from one end in the circumferential direction, which is the front side with respect to the tightening direction of the nut body (2) with respect to the bolt (100), from the other end. The nut according to any one of claims 1 to 6, wherein the nut is formed so as to increase a protrusion amount of the nut.
【請求項8】抵抗付与部(34)の内周径が、ボルト(100)
の雄ネジ(101) の谷径(R3)より大きく、且つ、ボルト(1
00) の雄ネジ(101) のネジ山径(R3)より小さく形成さ
れ、ボルト(100) へのナット本体(2) の螺合に際して、
抵抗付与部(34)が、ボルト(100) の雄ネジ(101) のネジ
溝(103) に入り込み可能とされ、ナット本体(2) とボル
ト(100) とで被固定物(H) を固定する際の押圧部(33)の
押圧に伴って、抵抗付与部(34)がボルト(100) の雄ネジ
(101) に当接して押圧するものであることを特徴とする
請求項1〜7のいずれかに記載のナット。
8. An inner diameter of the resistance applying portion (34) is equal to a bolt (100).
Larger than the root diameter (R3) of the male screw (101) and the bolt (1
00) is formed smaller than the thread diameter (R3) of the male screw (101), and when the nut body (2) is screwed into the bolt (100),
The resistance applying part (34) can enter the screw groove (103) of the male screw (101) of the bolt (100), and the fixed object (H) is fixed with the nut body (2) and the bolt (100). When the pressing part (33) is pressed, the resistance applying part (34) is turned into the male screw of the bolt (100).
The nut according to any one of claims 1 to 7, wherein the nut is brought into contact with and pressed against (101).
JP30146299A 1999-10-22 1999-10-22 nut Expired - Fee Related JP3390155B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30146299A JP3390155B2 (en) 1999-10-22 1999-10-22 nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30146299A JP3390155B2 (en) 1999-10-22 1999-10-22 nut

Publications (2)

Publication Number Publication Date
JP2001124043A true JP2001124043A (en) 2001-05-08
JP3390155B2 JP3390155B2 (en) 2003-03-24

Family

ID=17897198

Family Applications (1)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007085383A (en) * 2005-09-20 2007-04-05 Hamanaka Nut Kk Screw locking structure
JP2007211892A (en) * 2006-02-09 2007-08-23 Teruo Nakagami Fastening set member and fastening structure using this member
JP2009185845A (en) * 2008-02-04 2009-08-20 Teruo Nakagami Fastening member
KR100950925B1 (en) 2007-09-17 2010-04-05 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Prevention relaxatoion of fix bolt of heavy equipment track chain
JP5816767B1 (en) * 2015-03-13 2015-11-18 周 加藤 nut
KR101636818B1 (en) * 2016-02-19 2016-07-08 (주)신명전력산업 swichgear having earthquake proof function using loose prevention nut
CN111577747A (en) * 2020-05-14 2020-08-25 深圳市易和螺母有限公司 Threaded washer and method of installing same
CN111577737A (en) * 2020-05-14 2020-08-25 深圳市易和螺母有限公司 Double-protection nut
KR102165680B1 (en) * 2019-04-26 2020-10-14 백창목 A Locking Pin For A Door Lock

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007085383A (en) * 2005-09-20 2007-04-05 Hamanaka Nut Kk Screw locking structure
JP2007211892A (en) * 2006-02-09 2007-08-23 Teruo Nakagami Fastening set member and fastening structure using this member
KR100950925B1 (en) 2007-09-17 2010-04-05 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 Prevention relaxatoion of fix bolt of heavy equipment track chain
JP2009185845A (en) * 2008-02-04 2009-08-20 Teruo Nakagami Fastening member
JP5816767B1 (en) * 2015-03-13 2015-11-18 周 加藤 nut
KR101636818B1 (en) * 2016-02-19 2016-07-08 (주)신명전력산업 swichgear having earthquake proof function using loose prevention nut
KR102165680B1 (en) * 2019-04-26 2020-10-14 백창목 A Locking Pin For A Door Lock
CN111577747A (en) * 2020-05-14 2020-08-25 深圳市易和螺母有限公司 Threaded washer and method of installing same
CN111577737A (en) * 2020-05-14 2020-08-25 深圳市易和螺母有限公司 Double-protection nut

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