JPS59140916A - Nut - Google Patents
NutInfo
- Publication number
- JPS59140916A JPS59140916A JP1393883A JP1393883A JPS59140916A JP S59140916 A JPS59140916 A JP S59140916A JP 1393883 A JP1393883 A JP 1393883A JP 1393883 A JP1393883 A JP 1393883A JP S59140916 A JPS59140916 A JP S59140916A
- Authority
- JP
- Japan
- Prior art keywords
- nut member
- hole
- spring nut
- male screw
- spring
- 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
Links
Landscapes
- Bolts, Nuts, And Washers (AREA)
- Valve Device For Special Equipments (AREA)
- Materials For Medical Uses (AREA)
- Transmission Devices (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明ｌは、線材を密着コイル状に巻回して雌ネジを形
成したナツトに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention 1 relates to a nut having a female thread formed by winding a wire into a tightly coiled shape.
ボルト・ナツトによる固着手段では、ボルトあるいはナ
ツトを緩めることにより簡単に外すことができる利点が
あるが、盗難を防止するにはこれが欠点となる。盗難を
防止するためＫは溶接等の固着手段を使えばよいが、ボ
ルト・ナツトに比して手間がかかる上に、溶接等を適用
できない場合がある。Fixing means using bolts and nuts has the advantage that it can be easily removed by loosening the bolt or nut, but this is a disadvantage in preventing theft. In order to prevent theft, K may be secured by welding or other means, but this is more time-consuming than bolts and nuts, and welding or the like may not be applicable in some cases.
そこで、簡単に固定できしかも容易に外すことのできな
い固着手段が要望されていた。Therefore, there has been a need for a fixing means that can be easily fixed and cannot be easily removed.
本発明は上記事情に鑑みてなされたもので、その目的と
するところは、一旦取付けたら外そうとしても空回りし
て外すことのできないナツトを提供することである。The present invention has been made in view of the above circumstances, and its object is to provide a nut that, once attached, cannot be removed because it spins idly even if an attempt is made to remove it.
以下本発明の一実施例を図面を参照して説明する。An embodiment of the present invention will be described below with reference to the drawings.
図中符号１はナツト本体で、方形ブロック状に形成され
ている。このナツト本体１の中央部には貫通孔２が形成
されていて、この貫通孔２の一端部（ナツト本体１の表
面側）には抜脱阻止のための段部２２Ｌが形成されてい
る。Reference numeral 1 in the figure is the nut body, which is formed into a rectangular block shape. A through hole 2 is formed in the center of the nut body 1, and a step 22L is formed at one end of the through hole 2 (on the surface side of the nut body 1) to prevent the nut from coming off.
貫通孔２内には、断面円形状の鋼線を密着コイル吠に巻
回したスプリングナツト部材３が挿入きれている。この
スプリングナツト部材３の外径は貫通孔２の内径よりも
若干小さく設定され、またその軸線方向の長きも貫通孔
２の長きよりも若干短かく設定されている。すなわち、
スプリングナ、ト部材３は貫通孔２内において伸長、拡
径可能になっている。A spring nut member 3 made of a steel wire having a circular cross section wound in a tight coil is completely inserted into the through hole 2. The outer diameter of the spring nut member 3 is set to be slightly smaller than the inner diameter of the through hole 2, and its length in the axial direction is also set to be slightly shorter than the length of the through hole 2. That is,
The springer member 3 can be expanded and expanded in diameter within the through hole 2.
まだ、スプリングナツト部材３のピッチ、Ｐｌは雄ネジ
４のピッチＰ２より僅かに小さく設定されている。従っ
て、雄ネジ４を螺合したとき、スゲリングナツト部材３
は密着巻の状態から、ピッチＰ、とＰ２の差に相当して
軸線方向に引き伸ばされると共に、外径が僅かに拡がる
。また、一旦螺合した雄ネジ４を緩めようとすると、ス
ゲリングナツト部材３が雄ネジ４のネジ溝４ａに食い込
む作用をし、これを阻１ヒする。Still, the pitch Pl of the spring nut member 3 is set to be slightly smaller than the pitch P2 of the male thread 4. Therefore, when the male thread 4 is screwed together, the threading nut member 3
is stretched in the axial direction from the tightly wound state corresponding to the difference between pitches P and P2, and its outer diameter expands slightly. Further, when an attempt is made to loosen the male screw 4 that has been screwed together, the threading nut member 3 acts to bite into the thread groove 4a of the male screw 4, thereby blocking this.
スプリングナツト部材３の一端部３ａは、ナツト本体１
の一裏面側に貫通孔２と連通して形成した係止孔５に係
脱自在に係止されている。この係止状態は次のように設
定されている。すなわち、雄ネジ４を螺合すると、雄ネ
ジ４からスプリングナツト部材３に第２図に示す矢印入
方向の力が作用するので、この力により一端部３ａが係
止孔５にさらに進入する如く係止されている。雄ネジ４
を緩めようとすると、雄ネジ４からスプリングナツト部
材３に同図に示す矢印Ｂ方向の力が作用する。One end 3a of the spring nut member 3 is attached to the nut body 1.
It is removably locked in a locking hole 5 formed on one back side of the holder so as to communicate with the through hole 2 . This locked state is set as follows. That is, when the male screw 4 is screwed together, a force is applied from the male screw 4 to the spring nut member 3 in the direction of the arrow shown in FIG. It is locked. Male screw 4
When attempting to loosen the spring nut member 3, a force in the direction of arrow B shown in the figure is applied from the male screw 4 to the spring nut member 3.
この場合、前述の如くスゲリングナツト部材３が雄ネジ
４の緩み方向の回転を阻止するが、矢印Ｂ方向の力がこ
の抗力以上になると一端部３＆が係ＩＥ孔５から抜は出
ることになる。In this case, as described above, the threading nut member 3 prevents the male screw 4 from rotating in the loosening direction, but if the force in the direction of arrow B exceeds this resistance, the one end 3 & will come out of the engagement IE hole 5. Become.
本発明ではこの点に着目して一端部３ａの係と孔５に対
する係上度合を設定している。すなわち、雄ネジ４に緩
み方向に所定以上の力を作用したとき一端部３ａが係Ｉ
Ｆ孔５から抜は出るようにしている。In the present invention, the engagement of the one end portion 3a and the engagement degree with respect to the hole 5 are set by paying attention to this point. That is, when a predetermined force or more is applied to the male screw 4 in the direction of loosening, the one end 3a becomes engaged.
The hole is made to come out from the F hole 5.
一端部３＆が係止孔５から抜は出ると、スプリングナツ
ト部材３は貫通孔２内において空回りすることになゆ、
従って、雄ネジ４をいくら緩み方向て回転させても空回
りするだけでナツト本体１から外すことはできない。When the one end portion 3& is pulled out from the locking hole 5, the spring nut member 3 idles in the through hole 2.
Therefore, no matter how much the male screw 4 is rotated in the loosening direction, it simply rotates idly and cannot be removed from the nut body 1.
なお、ナツト本体１を緩み方向に回転させてもその作用
は同じである。Note that even if the nut body 1 is rotated in the loosening direction, the effect is the same.
μ北説明したように本発明によれば、線材をほぼ密着コ
イル状に巻回してなり、そのピッチが雄ネジのピッチよ
りも僅かに小さいスゲリングナツト部材を、軸線方向に
抜脱するのを阻止する段部を有したナツト本体の貫通孔
内に挿入し、かつ該スゲリングナツト部材の端部をナツ
ト本体の回り止め用の係Ｉと孔に係脱自在に係＋、ｈＬ
、て、スプリングナツト部材に螺合した雄ネジあるいは
す一／ ）本体を緩み方向に所定以上の力で回転させた
とき、スゲリングナツト部材の端部が係ＩＦ孔から外れ
てスゲリングナツト部材が貫通孔内において空回りする
ように構成しているので、一旦雄ネジを螺合したらこれ
を外すことができず、溶接等の手段を用いなくても盗難
等を有効に阻止できる。また、雄ネジを螺合するときに
は通常のす一／ ）と何んら変わらないので、手間がか
からず、また緩み止めの作用もする。As explained above, according to the present invention, it is possible to prevent a threaded nut member, which is formed by winding a wire rod into a nearly tightly coiled coil shape and whose pitch is slightly smaller than that of a male thread, from being pulled out in the axial direction. It is inserted into a through-hole of a nut body having a stepped portion for blocking, and the end of the sliding nut member is removably engaged with a lock I for preventing rotation of the nut body and a hole, hL.
When the male screw or screw screwed into the spring nut member is rotated in the loosening direction with more than a predetermined force, the end of the sgelling nut member comes off from the engagement IF hole and the sgelling nut member Since the screw is configured to rotate freely in the through hole, once the male screw is screwed together, it cannot be removed, and theft can be effectively prevented without using means such as welding. In addition, when screwing together the male thread, it is no different from a regular screw, so it does not take much time and also works to prevent loosening.
図面は本発明の一実施例を示すもので、第１図は半裁断
面図、第２図は第１図の■−■線矢視図、第３図は使用
状態の説明図である。
１・・・ナツト本体、２・・・貫通孔、２１・・・段部
、３・・・スプリングナツト部材、３ａ・・・端部、４
・・・雄ネジ、５・・・係止孔、ＰｌＩＰ２・・・ピッ
チ。
特許出願人 大場工業株式会社The drawings show one embodiment of the present invention, and FIG. 1 is a half-cut sectional view, FIG. 2 is a view taken along the line ■--■ in FIG. 1, and FIG. 3 is an explanatory view of the state of use. DESCRIPTION OF SYMBOLS 1... Nut body, 2... Through hole, 21... Step part, 3... Spring nut member, 3a... End part, 4
... Male thread, 5 ... Locking hole, PlIP2 ... Pitch. Patent applicant Ohba Kogyo Co., Ltd.
Claims (1)
雄ネジのピッチよりも僅かに小さいスプリングナツト部
材をく軸線方向に抜脱するのを阻止する段部を有したナ
ツト本体の貫通孔内に挿入し、かつ該スプリングナツト
部材の端部をナツト本体の回り止め用の係上孔に係脱自
在に係上して、スプリングナツト部材に螺合した雄ネジ
あるいはす、ト本体を緩み方向に所定以上の力で回転さ
せたとき、スプリングナツト部材の端部が係ＩＥ孔から
外れてスプリングナツト部材が貫通孔内において空回り
するように構成したことを特徴とするす７ト。Inside the through-hole of the nut body, which has a stepped part that prevents the spring nut member, which is made by winding a wire rod in a nearly tightly coiled manner and whose pitch is slightly smaller than the pitch of the male screw, from being pulled out in the axial direction. The end of the spring nut member is removably engaged with the locking hole for preventing rotation of the nut body, and the male screw or glass screwed into the spring nut member is loosened. 7. When the spring nut member is rotated with a force greater than a predetermined value, the end of the spring nut member comes off from the engagement hole and the spring nut member rotates idly within the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1393883A JPS59140916A (en) | 1983-01-31 | 1983-01-31 | Nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1393883A JPS59140916A (en) | 1983-01-31 | 1983-01-31 | Nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59140916A true JPS59140916A (en) | 1984-08-13 |
| JPS6233448B2 JPS6233448B2 (en) | 1987-07-21 |
Family
ID=11847139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1393883A Granted JPS59140916A (en) | 1983-01-31 | 1983-01-31 | Nut |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59140916A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061623A (en) * | 2000-08-15 | 2002-02-28 | Ahresty Corp | Stopper for panel fixture |
| JP2017009104A (en) * | 2015-06-18 | 2017-01-12 | 利宣 岩崎 | Easily removable nut |
-
1983
- 1983-01-31 JP JP1393883A patent/JPS59140916A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002061623A (en) * | 2000-08-15 | 2002-02-28 | Ahresty Corp | Stopper for panel fixture |
| JP2017009104A (en) * | 2015-06-18 | 2017-01-12 | 利宣 岩崎 | Easily removable nut |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6233448B2 (en) | 1987-07-21 |
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