JPH0719226A - Nut tool - Google Patents

Nut tool

Info

Publication number
JPH0719226A
JPH0719226A JP16164193A JP16164193A JPH0719226A JP H0719226 A JPH0719226 A JP H0719226A JP 16164193 A JP16164193 A JP 16164193A JP 16164193 A JP16164193 A JP 16164193A JP H0719226 A JPH0719226 A JP H0719226A
Authority
JP
Japan
Prior art keywords
nut
nut body
bolt
hole
outer peripheral
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
JP16164193A
Other languages
Japanese (ja)
Inventor
Toshihiko Sumiya
年彦 角谷
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.)
KAYOU KOGYO KK
Original Assignee
KAYOU KOGYO 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 KAYOU KOGYO KK filed Critical KAYOU KOGYO KK
Priority to JP16164193A priority Critical patent/JPH0719226A/en
Publication of JPH0719226A publication Critical patent/JPH0719226A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To make the rotational operation of a bolt or nut outerperipheral body be sufficient enough only at the time of clamping and insertable without rotation at the initial stage of insertion as well as to get off with a few frequency of rotational ovations, and besides, there is simple in operation, making a span of operating time shorter insofar as possible. CONSTITUTION:A nut lady 3 is movably inserted into a hole 2 formed in the central part of a nut outer peripheral body 1 in the axial direction. An expanding slot 4 is formed in this nut body 3 into a section of an almost C- shaped form. In addition, an internal thread part 5 is formed on an inner circumferential part of the nut body 3. In succession, a diametral contracting means 6 for diametrally contracting the section almost C-shaped nut body 3, insomuch that the nut body 3 is deeply inserted into the hole 2, is installed in an inner surface part of the hole 2 of an outer surface part of the nut body 3 or the nut outer peripheral body 1. Subsequently, an external thread part of a bolt is inserted into the internal thread part 5 unrotatingly with only axial insertion and, after being inserted, the nut body 3 is diametrally contracted and thereby screwed in.

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、ナット具に関するもの
である。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nut tool.

【0002】[0002]

【従来の技術】従来のナットは雌ねじ部の径が一定であ
り、このため、ナットにボルトを螺合するにはボルトの
雄ねじ部の先端をナットの雌ねじ部に螺合し、ボルトを
何回も回転して締め付けるようにしている。このよう
に、従来のナットにおいては、ボルトをナットへの挿入
の最初の段階から締め付けの最後の段階まで回転操作す
る必要があり(または、ナットをボルトへの挿入の最初
の段階から締め付けの最後の段階まで回転操作する必要
があり)、ボルトの回転操作(またはナットの回転操
作)の回数が多く、操作が煩わしく、しかも操作時間も
長くなるという問題があった。
2. Description of the Related Art In conventional nuts, the diameter of the female thread portion is constant. Therefore, in order to screw the bolt onto the nut, the tip of the male thread portion of the bolt is screwed onto the female thread portion of the nut, and the bolt is screwed many times. I also try to rotate and tighten. Thus, in conventional nuts, it is necessary to rotate the bolt from the first stage of insertion into the nut to the last stage of tightening (or the nut from the first stage of insertion into the bolt to the end of tightening). There is a problem in that the number of operations of rotating the bolt (or the operation of rotating the nut) is large, the operation is troublesome, and the operation time is long.

【0003】[0003]

【発明が解決しようとする課題】本発明は上記の従来例
の問題点に鑑みて発明したものであって、その目的とす
るところは、ボルト又はナット外周体の回転操作は締め
付け時のみでよくて挿入の初期においては回転すること
なく挿入でき、回転操作の回数が少なくてすみ、操作が
簡単で、しかも操作時間が短くなるナット具を提供する
にある。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art. The object of the present invention is to rotate a bolt or nut outer peripheral body only during tightening. It is an object of the present invention to provide a nut tool that can be inserted without rotating in the initial stage of insertion, requires only a small number of rotation operations, is easy to operate, and has a short operation time.

【0004】[0004]

【課題を解決するための手段】上記従来例の問題点を解
決して本発明の目的を達成するため、本発明のナット具
は、ナット外周体1の中央部に形成した孔2にナット本
体3を軸方向に移動自在に挿入し、ナット本体3に割り
溝4を形成して断面略C字状にし、ナット本体3の内周
部に雌ねじ部5を形成し、ナット本体3の外面部乃至ナ
ット外周体1の孔2の内面部にナット本体3が孔2に深
く挿入されるほど断面略C字状のナット本体3を縮径す
るための縮径手段6を設けて成ることを特徴とするもの
である。
In order to solve the problems of the above-mentioned conventional examples and to achieve the object of the present invention, a nut tool of the present invention has a nut body in a hole 2 formed in a central portion of a nut outer peripheral body 1. 3 is movably inserted in the axial direction, a split groove 4 is formed in the nut body 3 to have a substantially C-shaped cross section, a female screw portion 5 is formed on the inner peripheral portion of the nut body 3, and an outer surface portion of the nut body 3 is formed. Through the inner peripheral surface of the hole 2 of the nut outer peripheral body 1, there is provided a diameter reducing means 6 for reducing the diameter of the nut body 3 having a substantially C-shaped cross section as the nut body 3 is inserted deeper into the hole 2. It is what

【0005】また、ナット外周体1に対してナット本体
3が周方向に移動するのを防止するための周方向移動防
止手段7を設けて成る構成とすることも好ましい。更
に、ナット外周体1に対してナット本体3が軸方向に抜
けるのを防止するための脱落防止手段8を設けて成る構
成とすることも好ましい。
It is also preferable to provide a circumferential movement preventing means 7 for preventing the nut body 3 from moving in the circumferential direction with respect to the nut outer body 1. Further, it is also preferable that the nut outer body 1 is provided with fall-off preventing means 8 for preventing the nut body 3 from coming off in the axial direction.

【0006】[0006]

【作用】上記のような構成の本発明によれは、ボルト9
として雄ねじ部10のねじの山部の径がナット本体3の
雌ねじ部5の縮径前のねじの山部の径と同じかまたは若
干小さい径のものを用いることで、ボルト9をナット本
体3に挿入する際(またはナット本体3をボルト9に挿
入する際)回転操作することなく挿入することができる
ものである。そして、挿入後、ナット本体3をナット外
周体1に押しつけた状態でボルト9またはナット外周体
1を回転操作することでナット本体3が縮径されて雌ね
じ部5が雄ねじ部10に螺合されることになる。
According to the present invention having the above structure, the bolt 9
As the diameter of the thread portion of the male thread portion 10 is the same as or slightly smaller than the diameter of the thread portion of the female thread portion 5 of the nut body 3 before the diameter reduction, the bolt 9 is used. When the nut main body 3 is inserted into the bolt 9 (or when the nut main body 3 is inserted into the bolt 9), it can be inserted without rotating. After the insertion, the nut body 3 is reduced in diameter by rotating the bolt 9 or the nut outer body 1 while the nut body 3 is pressed against the nut outer body 1, and the female thread portion 5 is screwed into the male thread portion 10. Will be.

【0007】[0007]

【実施例】以下本発明を添付図面に示す実施例に基づい
て詳述する。本発明のナット具Aは図1乃至図3に示す
ようなものであり、外周部が6角形状をしたナット外周
体1と、このナット外周体1の中央部に形成した孔2に
軸方向に移動自在に挿入したナット本体3とで構成して
ある。ナット本体3は周方向の一部が前後方向にわたっ
て切り欠かれて割り溝4が形成してあり、このことによ
りナット本体3は断面略C字状をしている。また、ナッ
ト本体3の内周部には雌ねじ部5が刻設してある。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the embodiments shown in the accompanying drawings. The nut tool A of the present invention is as shown in FIGS. 1 to 3, and has a nut outer peripheral body 1 having a hexagonal outer peripheral portion, and an axial direction in a hole 2 formed in a central portion of the nut outer peripheral body 1. And a nut body 3 that is movably inserted in. A part of the nut body 3 in the circumferential direction is cut out in the front-rear direction to form a split groove 4, whereby the nut body 3 has a substantially C-shaped cross section. A female screw portion 5 is formed on the inner peripheral portion of the nut body 3.

【0008】ナット本体3の外面部乃至ナット外周体1
の中央部に形成した孔2の内面部にナット本体3が孔2
に深く挿入される程断面C字状のナット本体3を縮径す
るための縮径手段6が設けてある。添付図面に示す実施
例においてはナット本体3の外面部が後方にいく程径が
小さくなるような傾斜面部11となっており、ナット外
周体1の孔2の入口側内面部の径が縮径する前のナット
本体3の外面部の前部の径よりも小さく且つナット本体
3の外面部の後部の径よりも大きくなっていて、ナット
本体3が図2、図3の状態から更にナット外周体1の孔
2の奥に深く挿入されることで傾斜面部11がナット本
体3の孔2の内面部の前部に当たってナット本体3が縮
径されるようになっており、したがって、これらが縮径
手段6を構成することになる。なお、添付図面において
はナット本体3の外面部のみに傾斜面部11を設けた実
施例を示しているが、ナット本体3の外面部及びナット
外周体1の孔2の内面部の両方に後方に行く程径が小さ
くなるように傾斜面部を設けてもよく、あるいは、ナッ
ト外周体1の孔2の内面部にのみ同様の傾斜面部を設け
てもよい。
The outer surface of the nut body 3 to the nut outer body 1
At the inner surface of the hole 2 formed in the center of the
There is provided a diameter reducing means 6 for reducing the diameter of the nut body 3 having a C-shaped cross section as it is inserted deeper into the nut body 3. In the embodiment shown in the accompanying drawings, the outer surface portion of the nut body 3 has an inclined surface portion 11 whose diameter decreases toward the rear, and the diameter of the inner surface portion of the nut outer body 1 on the inlet side is reduced. The diameter of the nut body 3 is smaller than the diameter of the front portion of the outer surface portion of the nut body 3 and larger than the diameter of the rear portion of the outer surface portion of the nut body 3. By inserting deeply into the hole 2 of the body 1, the inclined surface portion 11 hits the front part of the inner surface portion of the hole 2 of the nut body 3 so that the nut body 3 is reduced in diameter. The diameter means 6 will be constituted. Although the attached drawings show an embodiment in which the inclined surface portion 11 is provided only on the outer surface portion of the nut body 3, the outer surface portion of the nut body 3 and the inner surface portion of the hole 2 of the nut outer body 1 are rearwardly arranged. The inclined surface portion may be provided so that the diameter becomes smaller as it goes, or the same inclined surface portion may be provided only on the inner surface portion of the hole 2 of the nut outer peripheral body 1.

【0009】ナット本体3はナット外周体1の孔2に軸
方向に移動自在に挿入してあるが、本発明においてはナ
ット本体3がナット外周体1に対して軸方向に抜けない
ように脱落防止手段8が設けてある。すなわち、添付図
面に示す実施例においては、図2、図3に示すようにナ
ット外周体1の孔2の内面部に溝部または段部13を形
成してあり、一方、ナット本体3の外周部には突起部1
4が形成してあり、突起部14を溝部または段部13に
軸方向に移動自在にはめ込んであり、ボルト10と螺合
する前であっても突起部14が溝部または段部13の前
端部の縁に当たることで抜けが防止されるようになって
おり、上記溝部または段部13と突起部14とで脱落防
止手段8が構成してある。ここで、実施例においてはナ
ット外周体1の孔2の内面部に溝部または段部13を形
成し、ナット本体3の外周部に突起部14を形成した
が、ナット外周体1の孔2の内面部に突起部14を形成
し、ナット本体3の外周部に溝部または段部13を形成
してもよいものである。
The nut body 3 is inserted into the hole 2 of the nut outer body 1 so as to be movable in the axial direction. However, in the present invention, the nut body 3 is detached from the nut outer body 1 so as not to come off in the axial direction. A prevention means 8 is provided. That is, in the embodiment shown in the accompanying drawings, as shown in FIGS. 2 and 3, a groove portion or a step portion 13 is formed on the inner surface portion of the hole 2 of the nut outer peripheral body 1, while the outer peripheral portion of the nut main body 3 is formed. On the projection 1
4 is formed, and the projection 14 is axially movably fitted in the groove or step 13, and the projection 14 can be fitted to the front end of the groove or step 13 even before being screwed into the bolt 10. The groove is prevented from coming off by hitting the edge of the groove or the stepped portion 13 and the projecting portion 14 and constitutes the fall-off preventing means 8. Here, in the embodiment, the groove portion or the step portion 13 is formed on the inner surface portion of the hole 2 of the nut outer peripheral body 1, and the protrusion portion 14 is formed on the outer peripheral portion of the nut main body 3, but the hole 2 of the nut outer peripheral body 1 is formed. The protrusion 14 may be formed on the inner surface and the groove or step 13 may be formed on the outer periphery of the nut body 3.

【0010】また、本発明においてはナット外周体1に
対してナット本体3が周方向に移動するのを防止するた
めの周方向移動防止手段7を設けてある。添付図面に示
す実施例においては、ナット外周体1の孔2の内面部に
前後方向にわたる凹部15を設け、ナット本体3の外面
部に凸部16を設け、凸部16を凹部15に軸方向に移
動自在にはめ込んであり、この凸部16を凹部15には
め込むことでナット本体3がナット外周体1に対して周
方向に移動しないようになっていて、凸部16、凹部1
5により周方向移動防止手段7が構成してある。ここ
で、添付図面に示す実施例においてはナット外周体1の
孔2の内面部に凹部15を設け、ナット本体3の外面部
に凸部16を設けた実施例が示してあるが、ナット外周
体1の孔2の内面部に凸部16を設け、ナット本体3の
外面部に凹部15を設けてもよいものであり、また、ナ
ット外周体1の孔2の内面部及びナット本体3の外面部
にそれぞれ対向するように凹部15を設けると共に両凹
部15に嵌まりこむようにキー(図示せず)をはめ込ん
でもよい。また、ナット外周体1の孔2を楕円等の非円
形とし、ナット本体3の外周形状をこれに対応する楕円
等の非円形として周方向に回転しないようにしてもよ
い。
Further, in the present invention, a circumferential movement preventing means 7 is provided for preventing the nut body 3 from moving in the circumferential direction with respect to the nut outer peripheral body 1. In the embodiment shown in the accompanying drawings, a recess 15 extending in the front-rear direction is provided on the inner surface of the hole 2 of the nut outer peripheral body 1, a projection 16 is provided on the outer surface of the nut body 3, and the projection 16 is provided in the recess 15 in the axial direction. The nut main body 3 is prevented from moving in the circumferential direction with respect to the nut outer peripheral body 1 by fitting the convex portion 16 into the concave portion 15.
A circumferential movement prevention means 7 is constituted by 5. Here, in the embodiment shown in the accompanying drawings, an example in which a concave portion 15 is provided on the inner surface portion of the hole 2 of the nut outer peripheral body 1 and a convex portion 16 is provided on the outer surface portion of the nut body 3, is shown. The protrusion 16 may be provided on the inner surface of the hole 2 of the body 1 and the recess 15 may be provided on the outer surface of the nut body 3, and the inner surface of the hole 2 of the nut outer body 1 and the nut body 3 may be formed. The recesses 15 may be provided so as to face the outer surface portions, respectively, and a key (not shown) may be fitted in the recesses 15 so as to be fitted therein. Alternatively, the hole 2 of the nut outer body 1 may be non-circular such as an ellipse, and the outer peripheral shape of the nut body 3 may be non-circular such as an ellipse so as not to rotate in the circumferential direction.

【0011】上記のような構成の本発明のナット具Aは
例えば次のようにして使用される。図4乃至図6にはナ
ット具Aの使用例の一例が示してある。まず、本発明の
ナット具Aに使用するボルト9としては雄ねじ部10の
ねじの山部の径L1 がナット本体3の雌ねじ部5の縮径
前のねじの山部の径L2 と同じかまたは若干小さい径も
のを用いるものである。したがって、今、部材Bと部材
Cとをボルト9、ナット具Aを用いて固着する場合の例
につき説明すると、図4の状態からボルト9の雄ねじ部
10を部材B、Cの各孔20、21に挿通し、更にナッ
ト具Aの縮径前の状態のナット本体3の雌ねじ部5に挿
入する。この場合、上記のようにボルト9として雄ねじ
部10のねじの山部の径L1 がナット本体3の雌ねじ部
5の縮径前のねじの山部の径L2 と同じかまたは若干小
さい径のものを使用するので、図5のように雄ねじ部1
0をナット本体3の雌ねじ部5内に軸方向の挿入のみに
より挿入することができる。したがって、図5の状態に
至るまではボルト9またはナット外周体1を回転操作す
る必要がない。そして、第5図のように雄ねじ部10を
ナット本体3の雌ねじ部5内に軸方向の挿入のみにより
挿入した状態で、ナット本体3をナット外周体1に押し
つけた状態でボルト9またはナット外周体1を回転操作
することでナット本体3が縮径されて雌ねじ部5が雄ね
じ部10に螺合され、図6のように部材Bと部材Cとが
ボルト9及び本発明のナット体Aとで固着されることに
なる。
The nut tool A of the present invention having the above-mentioned structure is used, for example, as follows. 4 to 6 show an example of how the nut tool A is used. First, as for the bolt 9 used in the nut tool A of the present invention, the diameter L 1 of the thread portion of the male thread portion 10 is the same as the diameter L 2 of the thread portion of the female thread portion 5 of the nut body 3 before the diameter reduction. Alternatively, a slightly smaller diameter is used. Therefore, an example of fixing the member B and the member C using the bolt 9 and the nut tool A will now be described. From the state of FIG. 4, the male screw portion 10 of the bolt 9 is changed to the holes 20 of the members B and C, respectively. 21 and further into the female screw portion 5 of the nut body 3 in the state before the diameter reduction of the nut tool A. In this case, as described above, as the bolt 9, the diameter L 1 of the thread crest portion of the male thread portion 10 is the same as or slightly smaller than the diameter L 2 of the thread crest portion of the female thread portion 5 of the nut body 3 before the diameter reduction. As shown in Fig. 5, the male screw part 1 is used.
0 can be inserted into the female thread portion 5 of the nut body 3 only by axial insertion. Therefore, it is not necessary to rotate the bolt 9 or the nut outer peripheral body 1 until the state of FIG. 5 is reached. Then, as shown in FIG. 5, with the male threaded portion 10 inserted into the female threaded portion 5 of the nut body 3 only by axial insertion, the nut body 3 is pressed against the nut outer peripheral body 1, and the bolt 9 or the nut outer periphery is pressed. By rotating the body 1, the diameter of the nut body 3 is reduced and the female screw portion 5 is screwed into the male screw portion 10. As shown in FIG. 6, the member B and the member C are the bolt 9 and the nut body A of the present invention. Will be fixed in.

【0012】図7乃至図9には本発明のナット体Aの使
用例の他例が示してある。すなわち図4乃至図6におい
てはナット本体3の外面部の径の大きい方を部材B、C
側に位置させてボルト9で締結した例を示したが、図7
乃至図9においてはナット本体3の外面部の径の小さい
方を部材B、C側に位置させてボルト9で締結する例が
示してある。この実施例においては、図7の状態からボ
ルト9の雄ねじ部10を部材B、Cの角孔20、21に
挿通し、更にナット具Aの縮径前の状態のナット本体3
の雌ねじ部5に挿入する。この場合も上記のようにボル
ト9として雄ねじ部10のねじの山部の径L1 がナット
本体3の雌ねじ部5の縮径前のねじの山部の径L2 と同
じかまたは若干小さい径のものを使用するので、図8の
ように雄ねじ部10をナット本体3の雌ねじ部5内に軸
方向の挿入のみにより挿入することができる。したがっ
て、図8の状態に至るまではボルト9またはナット外周
体1を回転操作する必要がない。そして、第8図のよう
に雄ねじ部10をナット本体3の雌ねじ部5内に軸方向
の挿入のみにより挿入した状態で、ナット本体3をナッ
ト外周体1に押しつけた状態でボルト9またはナット外
周体1を回転操作することでナット本体3が縮径されて
雌ねじ部5が雄ねじ部10に螺合され図9のように部材
Bと部材Cとがボルト9及び本発明のナット体Aとで固
着されることになる。そして、この実施例においては、
図8の状態でナット本体3が少し縮径されていったん雄
ねじ部10が雌ねじ部5に螺合しはじめると螺合に伴っ
てナット本体3が自動的に孔2の奥側に向けて移動し、
このことでその後は自動的にナット本体3が縮径するこ
とになるので以降はナット本体3をナット外周体1に押
しつけて縮径させる必要はない。
7 to 9 show another example of use of the nut body A of the present invention. That is, in FIGS. 4 to 6, the larger diameter of the outer surface portion of the nut body 3 is defined as the members B and C.
The example in which it is located on the side and fastened with the bolt 9 is shown in FIG.
9A to 9C show an example in which the smaller diameter of the outer surface portion of the nut body 3 is positioned on the members B and C side and fastened with the bolt 9. In this embodiment, from the state shown in FIG. 7, the male screw portion 10 of the bolt 9 is inserted into the square holes 20 and 21 of the members B and C, and the nut body 3 in the state before the diameter reduction of the nut tool A is performed.
Insert into the female screw portion 5 of. Also in this case, as described above, as the bolt 9, the diameter L 1 of the thread crest portion of the male thread portion 10 is the same as or slightly smaller than the diameter L 2 of the thread crest portion of the female thread portion 5 of the nut body 3 before the diameter reduction. As shown in FIG. 8, the male screw portion 10 can be inserted into the female screw portion 5 of the nut body 3 only by the axial insertion. Therefore, it is not necessary to rotate the bolt 9 or the nut outer peripheral body 1 until the state of FIG. 8 is reached. Then, as shown in FIG. 8, with the male screw portion 10 inserted into the female screw portion 5 of the nut body 3 only by axial insertion, the nut body 3 is pressed against the nut outer peripheral body 1, and the bolt 9 or the nut outer periphery is pressed. By rotating the body 1, the nut body 3 is reduced in diameter, the female screw portion 5 is screwed into the male screw portion 10, and the members B and C are the bolt 9 and the nut body A of the present invention as shown in FIG. It will be fixed. And in this embodiment,
In the state shown in FIG. 8, once the nut body 3 is slightly reduced in diameter and the male screw portion 10 starts to be screwed into the female screw portion 5, the nut body 3 is automatically moved toward the inner side of the hole 2 in accordance with the screwing. ,
This automatically reduces the diameter of the nut body 3 thereafter, so that it is not necessary to press the nut body 3 against the nut outer peripheral body 1 to reduce the diameter thereafter.

【0013】なお、ナット本体3としては、金属板をプ
レス成形してC字状に形成すると共にプレス成形によっ
て雌ねじ部5等の各部をプレス成形したものを使用して
もよいものである。
The nut body 3 may be formed by pressing a metal plate into a C-shape and pressing each part such as the female screw portion 5 by press molding.

【0014】[0014]

【発明の効果】本発明にあっては、上述のように、ナッ
ト外周体の中央部に形成した孔にナット本体を軸方向に
移動自在に挿入し、ナット本体に割り溝を形成して断面
略C字状にし、ナット本体の内周部に雌ねじ部を形成
し、ナット本体の外面部乃至ナット外周体の孔の内面部
にナット本体が孔に深く挿入されるほど断面略C字状の
ナット本体を縮径するための縮径手段を設けてナット具
を構成してあるので、ボルトとして雄ねじ部のねじの山
部の径がナット本体の雌ねじ部の縮径前のねじの山部の
径と同じかまたは若干小さい径ものを用いることで、ボ
ルトをナット本体に挿入する際(またはナット本体をボ
ルトに挿入する際)回転操作することなく挿入すること
ができ、挿入後、ナット本体をナット外周体に押しつけ
た状態でボルトまたはナット外周体を回転操作すること
でナット本体が縮径されて雌ねじ部が雄ねじ部に螺合さ
れるものであり、この結果、ボルト又はナット外周体の
回転操作は締め付け時のみでよくて挿入の初期において
は回転することなく挿入だけですみ、回転操作の回数が
少なくてすみ、操作が簡単で、しかも操作時間が短くな
るものである。
According to the present invention, as described above, the nut main body is axially movably inserted into the hole formed in the central portion of the nut outer peripheral body, and the split groove is formed in the nut main body. The nut body has a substantially C-shape, and an internal thread portion is formed on the inner peripheral portion of the nut body. The nut body has a substantially C-shaped cross section as the nut body is deeply inserted into the hole from the outer surface portion of the nut body to the inner surface portion of the hole of the nut outer body. Since the nut tool is configured by providing the diameter reducing means for reducing the diameter of the nut body, the diameter of the thread portion of the male thread portion of the nut is smaller than that of the thread portion of the female thread portion of the nut body before the diameter reduction. By using a diameter that is the same as or slightly smaller than the diameter, it can be inserted without rotating when inserting the bolt into the nut body (or when inserting the nut body into the bolt). While pressing the nut outer body, By rotating the nut outer body, the diameter of the nut body is reduced and the female threaded portion is screwed into the male threaded portion.As a result, the bolt or nut outer body can be rotated only when tightening the nut or outer body. In the initial stage, it can be inserted without rotating, the number of rotation operations is small, the operation is simple, and the operation time is short.

【0015】また、ナット外周体に対してナット本体が
周方向に移動するのを防止するための周方向移動防止手
段を設けてあるので、ナット本体とナット外周体とを軸
方向に移動自在としたにもかかわらず、ナット外周体を
回転することでナット本体を同時に回転できるものであ
り、確実な締結ができるものである。また、ナット外周
体に対してナット本体が軸方向に抜けるのを防止するた
めの脱落防止手段を設けてあるので、ナット本体とナッ
ト外周体とを軸方向に移動自在としたにもかかわらず、
ナット本体がナット外周体に対して脱落せず、したがっ
て、ナット具の使用に当たって操作しやすいものであ
る。
Further, since the circumferential movement preventing means for preventing the nut body from moving in the circumferential direction with respect to the nut outer body is provided, the nut body and the nut outer body can be moved in the axial direction. Nevertheless, the nut main body can be rotated at the same time by rotating the nut outer peripheral body, and reliable fastening can be achieved. Further, since the nut body is provided with a fall-out preventing means for preventing the nut body from coming off in the axial direction with respect to the nut outer body, the nut body and the nut outer body are movable in the axial direction,
The nut body does not fall off from the nut outer body, and therefore, it is easy to operate when using the nut tool.

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

【図1】本発明の一実施例の斜視図である。FIG. 1 is a perspective view of an embodiment of the present invention.

【図2】同上の図1のXーX線断面図である。2 is a sectional view taken along line XX of FIG. 1 above.

【図3】同上の図1のYーY線断面図である。3 is a sectional view taken along line YY of FIG. 1 above.

【図4】本発明の一使用例を示すもので、ボルトを挿入
する前の断面図である。
FIG. 4 is a sectional view showing an example of use of the present invention before inserting a bolt.

【図5】同上のボルトを挿入した状態の断面図である。FIG. 5 is a sectional view showing a state in which the above bolt is inserted.

【図6】同上のボルトとナット具とを締結した状態の断
面図である。
FIG. 6 is a cross-sectional view showing a state in which a bolt and a nut tool of the same are fastened together.

【図7】本発明の他の一使用例を示すもので、ボルトを
挿入する前の断面図である。
FIG. 7 is a cross-sectional view showing another usage example of the present invention before inserting a bolt.

【図8】同上のボルトを挿入した状態の断面図である。FIG. 8 is a sectional view showing a state in which the above bolt is inserted.

【図9】同上のボルトとナット具とを締結した状態の断
面図である。
FIG. 9 is a cross-sectional view showing a state in which the above bolt and nut are fastened together.

【符号の説明】[Explanation of symbols]

1 ナット外周体 2 孔 3 ナット本体 4 割り溝 5 雌ねじ部 6 縮径手段 7 周方向移動防止手段 8 脱落防止手段 1 Nut Outer Body 2 Hole 3 Nut Main Body 4 Split Groove 5 Female Threaded Part 6 Diameter Reduction Means 7 Circumferential Movement Prevention Means 8 Fallout Prevention Means

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 ナット外周体の中央部に形成した孔にナ
ット本体を軸方向に移動自在に挿入し、ナット本体に割
り溝を形成して断面略C字状にし、ナット本体の内周部
に雌ねじ部を形成し、ナット本体の外面部乃至ナット外
周体の孔の内面部にナット本体が孔に深く挿入されるほ
ど断面略C字状のナット本体を縮径するための縮径手段
を設けて成ることを特徴とするナット具。
1. An inner peripheral portion of a nut main body, wherein a nut main body is axially movably inserted into a hole formed in a central portion of the nut outer peripheral body, and a split groove is formed in the nut main body to have a substantially C-shaped cross section. A female thread portion is formed on the outer peripheral surface of the nut body or the inner surface portion of the hole of the nut outer body to reduce the diameter of the nut body having a substantially C-shaped cross section as the nut body is deeply inserted into the hole. A nut tool characterized by being provided.
【請求項2】 ナット外周体に対してナット本体が周方
向に移動するのを防止するための周方向移動防止手段を
設けて成ることを特徴とする請求項1記載のナット具。
2. The nut tool according to claim 1, further comprising a circumferential movement preventing means for preventing the nut body from circumferentially moving with respect to the nut outer peripheral body.
【請求項3】 ナット外周体に対してナット本体が軸方
向に抜けるのを防止するための脱落防止手段を設けて成
ることを特徴とする請求項1又は請求項2記載のナット
具。
3. The nut tool according to claim 1 or 2, further comprising drop-off preventing means for preventing the nut main body from coming off in the axial direction with respect to the nut outer peripheral body.
JP16164193A 1993-06-30 1993-06-30 Nut tool Pending JPH0719226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16164193A JPH0719226A (en) 1993-06-30 1993-06-30 Nut tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16164193A JPH0719226A (en) 1993-06-30 1993-06-30 Nut tool

Publications (1)

Publication Number Publication Date
JPH0719226A true JPH0719226A (en) 1995-01-20

Family

ID=15739049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16164193A Pending JPH0719226A (en) 1993-06-30 1993-06-30 Nut tool

Country Status (1)

Country Link
JP (1) JPH0719226A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102283353B1 (en) * 2021-03-23 2021-07-29 주식회사 상신기술 Lock nut

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50124042A (en) * 1974-03-15 1975-09-29

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50124042A (en) * 1974-03-15 1975-09-29

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102283353B1 (en) * 2021-03-23 2021-07-29 주식회사 상신기술 Lock nut

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