JPH10169627A - Nut screwed at time of tightening - Google Patents
Nut screwed at time of tighteningInfo
- Publication number
- JPH10169627A JPH10169627A JP33203696A JP33203696A JPH10169627A JP H10169627 A JPH10169627 A JP H10169627A JP 33203696 A JP33203696 A JP 33203696A JP 33203696 A JP33203696 A JP 33203696A JP H10169627 A JPH10169627 A JP H10169627A
- Authority
- JP
- Japan
- Prior art keywords
- nut
- tightening
- screwed
- connecting piece
- bolt
- 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
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- Connection Of Plates (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、締め込み開始時に
なってから雄ねじに螺合するナットに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nut which is screwed into a male screw at the start of tightening.
【０００２】[0002]
【従来の技術】ナットは、雄ねじ上で数回回転させて、
被締付け部材に当接させてからでないと、被締付け部材
を締付けることができない。また、ナットは、雄ねじ上
で数回回転させて、被締付け部材に対する締付けを緩め
てからでないと、雄ねじから抜取ることはできない。2. Description of the Related Art A nut is rotated several times on a male screw,
The member to be tightened cannot be tightened unless it is brought into contact with the member to be tightened. Further, the nut cannot be removed from the male screw until the nut is rotated several times on the male screw to loosen the tightening to the member to be tightened.
【０００３】[0003]
【発明が解決しようとする課題】従来のナットは、被締
付け部材を締付けるに先立って、また緩めた後にも、雄
ねじ上で無駄な回転をさせなければならず、特に、雄ね
じの長さが必要以上に長い場合には、無用の手間と時間
を要する。Prior art nuts require unnecessary rotation on a male screw prior to tightening and after loosening of the member to be tightened. If the length is longer than that, unnecessary labor and time are required.
【０００４】本発明は、上記の問題点を解決して、雄ね
じの長さが必要以上に長い場合であっても、ナットの締
め込み作業や抜取り作業を短時間の中に手際良く行なう
ことができるようにしたナットを提供することを目的と
している。[0004] The present invention solves the above-mentioned problems, and can perform a nut tightening operation and a nut extracting operation efficiently in a short time even when the length of the external thread is longer than necessary. It is intended to provide a nut that can be used.
【０００５】[0005]
【課題を解決するための手段】本発明によると、上記課
題は、次のようにして解決される。 (１) めねじ孔を設けた筒状部材を径方向に分割して形
成した複数のナット素片の締め込み方向の先端である前
端同士を、螺合しようとするおねじの外径より大きい雄
ねじ貫通孔を有する連結片をもって連結する。According to the present invention, the above-mentioned problem is solved as follows. (1) The front ends, which are the tips in the tightening direction, of the plurality of nut pieces formed by dividing the cylindrical member provided with the female screw hole in the radial direction are larger than the outer diameter of the male screw to be screwed. Connection is made with a connection piece having a male screw through hole.
【０００６】(２) 上記(１)項において、ナット素片の
めねじ孔の前端に、それよりもやや大径の逃げ孔を設け
る。(2) In the above item (1), a relief hole having a slightly larger diameter is provided at the front end of the female screw hole of the nut piece.
【０００７】(３) 上記(１)または(２)項において、前
記連結片は、複数のナット素片の後端同士を離間させる
方向に反っているものとする。(3) In the above item (1) or (2), the connecting piece is warped in a direction for separating rear ends of the plurality of nut pieces.
【０００８】(４) 上記(３)項において、前記連結片の
前面を、ナット素片の分割線より遠ざかる方向に前向突
出する傾斜面とする。(4) In the above item (3), the front surface of the connecting piece is an inclined surface that projects forward in a direction away from the dividing line of the nut element.
【０００９】(５) 上記(３)項において、前記連結片の
前面におけるナット素片の分割線より離れた個所に、前
向突起を設ける。(5) In the above item (3), a forward projection is provided on the front surface of the connecting piece at a position separated from a dividing line of the nut element.
【００１０】(６) 上記(１)〜(５)項のいずれかにおい
て、両ナット素材を閉じた状態で締付ける締付け手段を
設ける。(6) In any one of the above items (1) to (5), a fastening means for fastening the nut material in a closed state is provided.
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施の態様を、図
に基づいて説明する。ナット(１)は、対向する１対のナ
ット素片(２)(２)の前端同士を連結片(３)で連結した４
角ナットである。１対のナット素片(２)(２)は、めねじ
孔(４)を設けた角筒状部材を径方向に２分割して形成さ
れている。連結片(３)は弾性を有するものが望ましく、
ナット素片(２)(２)の前端(2a)(2a)、すなわち締め込み
方向(Ａ)の先端面にまたがって設けられて、１対のナッ
ト素片(２)(２)同士を接続しており、かつ、螺合しよう
とするボルト(５)のおねじ(5a)の外径より大きい貫通孔
(3a)を備えている。Embodiments of the present invention will be described below with reference to the drawings. The nut (1) is formed by connecting the front ends of a pair of opposing nut pieces (2) and (2) with a connecting piece (3).
It is a square nut. The pair of nut pieces (2) and (2) are formed by radially dividing a rectangular cylindrical member provided with a female screw hole (4) into two parts. The connecting piece (3) preferably has elasticity,
Nut pieces (2), (2) are provided over the front ends (2a) and (2a) of the nut pieces, that is, over the tip surface in the tightening direction (A), and connect a pair of nut pieces (2) and (2). And the through hole larger than the outside diameter of the male screw (5a) to be screwed
(3a) is provided.
【００１２】連結片(３)は、１対のナット素片(２)(２)
の後端(2b)(2b)同士を互いに離間させるべく、側面視前
向「く」の字状に反っている。従って、ナット(１)をボ
ルト(５)に螺合していない状態においては、１対のナッ
ト素片(２)(２)は、「ハ」の字状に開いている。The connecting piece (3) comprises a pair of nut pieces (2) and (2).
The rear ends (2b) and (2b) are warped in the shape of a "ku" facing forward in a side view so as to be separated from each other. Therefore, in a state where the nut (1) is not screwed into the bolt (5), the pair of nut pieces (2) and (2) are open in a “C” shape.
【００１３】ナット(１)のめねじ孔(４)の前端には、後
方を向くテーパ状の逃げ孔(4a)が形成されている。At the front end of the female screw hole (4) of the nut (1), a tapered relief hole (4a) facing rearward is formed.
【００１４】ナット(１)の前端部の外周には、環状溝(2
c)が設けられている。An annular groove (2) is formed on the outer periphery of the front end of the nut (1).
c) is provided.
【００１５】ボルト(５)へのナット(１)の螺合は、次の
ようにして行なわれる。まず、「ハ」の字状に開いてい
るナット素片(２)(２)をボルト(５)にねじ込むことなく
挿入し、ボルト(５)に予め挿入されている例えばスプリ
ングワッシャー(６）と、平ワッシャー(７)と、２枚の
被締付け板(８)(８)とを、ボルト(５)の頭(5b)の方に押
付ける。ナット(１)の前端には逃げ孔(4a)が形成されて
いるため、ナット(１)のめねじ孔(４)がボルト(５)のお
ねじ(5a)に引っ掛かることなく、ナット(１)はボルト
(5)に円滑に挿入される。The screwing of the nut (1) to the bolt (5) is performed as follows. First, insert the nut pieces (2) and (2) opened in the shape of a letter "C" without screwing them into the bolt (5), and insert, for example, a spring washer (6) previously inserted into the bolt (5). The flat washer (7) and the two clamped plates (8) and (8) are pressed toward the head (5b) of the bolt (5). Since the escape hole (4a) is formed at the front end of the nut (1), the female screw hole (4) of the nut (1) does not catch on the male screw (5a) of the bolt (5), and the nut (1) is not caught. ) Is a bolt
(5) Inserted smoothly.
【００１６】ナット(１)を被締付け板(８)(８)に押付け
ると、連結片(３)は平坦となり、１対のナット素片(２)
(２)は、図３における想像線の状態から、実線で示す閉
じた状態になって、ボルト(５)を挟持し、めねじ孔(４)
をおねじ(5a)に噛合させる。その後、ナット(１)を回転
させると、２枚の被締付け板(８)(８)は、ボルト(５)の
頭(5b)の方に押圧されて、ナット(１)との間に挟圧され
る。このとき、１対のナット素片(２)(２)は、被締付け
板(８)(８)を押圧する反力によって、ボルト(５)を強固
に挟持し、めねじ孔(４)はおねじ(5a)に噛合して、互い
に圧接し合う。When the nut (1) is pressed against the clamped plates (8) and (8), the connecting piece (3) becomes flat and a pair of nut pieces (2) is formed.
(2) changes from the state of the imaginary line in FIG. 3 to the closed state shown by the solid line, clamps the bolt (5), and sets the female screw hole (4).
Into the male screw (5a). Thereafter, when the nut (1) is rotated, the two clamped plates (8) and (8) are pressed toward the head (5b) of the bolt (5), and pinched between the nut (1). Pressed. At this time, the pair of nut pieces (2) and (2) firmly clamp the bolt (5) by the reaction force pressing the tightened plates (8) and (8), and the female screw hole (4) is closed. It engages with the screw (5a) and presses against each other.
【００１７】さらに、ナット(１)を回転させると、１対
のナット素片(２)(２)は、上記反力によって、さらに強
く互いに圧接し合い、互いに離れることができなくな
り、一体化された状態になる。なお、ナット(１)が弛ん
だとき、１対のナット素片(２)(２)がボルト(５)から離
れないようにするため、ナット(１)の外周適所に形成し
た環状溝(2c)に、Ｃ型リング(９)等の締付け手段を外嵌
しておくのがよい。Further, when the nut (1) is rotated, the pair of nut pieces (2) and (2) are further pressed against each other due to the above-mentioned reaction force and cannot be separated from each other. State. In order to prevent the pair of nut pieces (2) and (2) from separating from the bolt (5) when the nut (1) is loosened, an annular groove (2c) formed at an appropriate position on the outer periphery of the nut (1) is used. ) Is preferably fitted with a fastening means such as a C-shaped ring (9).
【００１８】このように、ナット(１)は、締付け位置ま
でボルト(５)に対して回転させることなく挿入すること
ができるため、ナット(１)の締付けを、短時間の内に手
際良く行なうことができる。As described above, since the nut (1) can be inserted to the tightening position without rotating the bolt (5), the nut (1) can be efficiently and quickly tightened. be able to.
【００１９】ナット(１)をボルト(５)から抜取るには、
Ｃ型リング(９)を取り外してから、ナット(１)を逆回転
させる。すると、ナット(１)は、被締付け板(８)(８)か
ら離れ、１対のナット素片(２)(２)は連結片(３)の復元
力によって「ハ」字状に開き、めねじ孔(４)はおねじ(5
a)から離れる。これによって、ナット(１)を、回転させ
ることなくボルト(５)から簡単に抜取ることができる。To remove the nut (1) from the bolt (5),
After removing the C-ring (9), the nut (1) is rotated in reverse. Then, the nut (1) is separated from the tightened plates (8) and (8), and the pair of nut pieces (2) and (2) are opened in a "C" shape by the restoring force of the connecting piece (3). The female screw hole (4) is
Step away from a). Thereby, the nut (1) can be easily removed from the bolt (5) without rotating.
【００２０】ナットの変形例として、ナット素片が３つ
以上に分割されたものや、５角形以上の多角形ナット、
あるいは円形ナットもある。図４に示すように、連結片
(３)の前面を、ナット素片(２)(２)の分割線より遠ざか
る方向に、前向突出する傾斜面(3b)とするか、あるいは
この前面における上記分割線より離れた個所に前向突起
(3c)を設けておくと、締付力はより大となる。As a modified example of the nut, a nut obtained by dividing a nut element into three or more pieces, a polygonal nut having a pentagon or more,
Or there is a circular nut. As shown in FIG.
The front surface of (3) is a sloped surface (3b) protruding forward in the direction away from the dividing line of the nut pieces (2) and (2), or the front surface of the front surface is located at a position on the front surface apart from the dividing line. Directional protrusion
If (3c) is provided, the tightening force becomes larger.
【００２１】連結片を、「く」の字状に反っていない平
坦なものとすることもある。この場合、連結片によって
接続された１対のナット素片は、ボルトに螺合していな
いときでも、連結片によって互いに密着させられてい
る。そのため、ナットをボルトに挿入するとき、連結片
に抗して、ナット素片同士を強制的に開いて、ボルトに
挿入する必要がある。従ってこの場合、連結片を可撓性
材料からなるものとすることもある。In some cases, the connecting piece may be a flat piece that is not warped in the shape of a "ku". In this case, the pair of nut pieces connected by the connecting piece are brought into close contact with each other by the connecting piece even when not screwed to the bolt. Therefore, when inserting a nut into a bolt, it is necessary to forcibly open the nut pieces against the connecting piece and insert the nut into the bolt. Therefore, in this case, the connecting piece may be made of a flexible material.
【００２２】[0022]
【発明の効果】請求項１の発明によると、ナット素片同
士を開いて、めねじ孔がおねじに引っ掛からないように
してから、ナットの締付け位置までナットを回転させる
ことなく移動させることができるため、ナットの締め込
み作業を、短時間の内に手際良く行なうことができる。
また、ナットをおねじから抜取るときも、緩めた後に、
ナット素片同士を開いて、ナットを回転させることな
く、短時間で手際良く行なうことができる。特に、雄ね
じが必要以上に長い場合において、上記効果は顕著であ
る。According to the first aspect of the present invention, it is possible to open the nut pieces so that the female screw hole does not catch on the male screw, and then move the nut to the nut tightening position without rotating the nut. Therefore, the tightening operation of the nut can be performed skillfully in a short time.
Also, when removing the nut from the male screw, after loosening it,
The operation can be performed in a short time and skillfully without opening the nut pieces and rotating the nut. In particular, when the external thread is longer than necessary, the above effect is remarkable.
【００２３】請求項２の発明のように、ナット素片のめ
ねじ孔の前端に、それよりもやや大径の逃げ孔を設けて
おくと、ナット素片同士を開いた状態でナットをボルト
に挿入する際に、めねじ孔とおねじとの引っ掛かりを確
実に回避することができ、ナットの挿入を円滑にするこ
とができる。According to the second aspect of the present invention, if a slightly larger-diameter relief hole is provided at the front end of the female screw hole of the nut element, the nut can be bolted with the nut elements open. When the female screw is inserted into the female screw hole, it is possible to reliably prevent the female screw hole from being caught by the male screw, and to smoothly insert the nut.
【００２４】請求項３の発明のように、連結片を、複数
のナット素片の後端同士を離間させる方向に反っている
と、ナット素片同士の開いた状態を保持することがで
き、ナットをおねじに挿入するとき、ナット素片同士を
強制的に開くことなく、おねじへのナットの挿入を円滑
に行なうことができる。If the connecting piece is warped in a direction to separate the rear ends of the plurality of nut pieces as in the invention of claim 3, the open state of the nut pieces can be maintained, When the nut is inserted into the male screw, the nut can be smoothly inserted into the male screw without forcibly opening the nut pieces.
【００２５】請求項４および５の発明のように、連結片
の前面を、ナット素片の分割線より遠ざかる方向に前向
突出する傾斜面とするか、あるいは連結片の前面におけ
るナット素片の分割線より離れた個所に前向突起を設け
ておくと、螺合時のナット素片の閉止力を大とすること
ができる。According to the fourth and fifth aspects of the present invention, the front surface of the connecting piece may be an inclined surface protruding forward in a direction away from the dividing line of the nut piece, or the front face of the connecting piece may have an inclined surface. Providing the forward projection at a position distant from the dividing line can increase the closing force of the nut element during screwing.
【００２６】請求項５の発明のように、両ナット素材を
閉じた状態で締付ける締付け手段を設けると、仮りにナ
ットが弛んでも、１対のナット素片が雄ねじから離れる
ことがなく、ナットの脱落を防止することができる。According to the fifth aspect of the present invention, when the tightening means for tightening the two nut materials in a closed state is provided, even if the nut is loosened, the pair of nut pieces does not separate from the male screw, and the nut can be removed. Dropout can be prevented.
【図１】本発明の一実施態様のナットと、このナットが
螺合されるボルトとの斜視図である。FIG. 1 is a perspective view of a nut according to an embodiment of the present invention and a bolt to which the nut is screwed.
【図２】図１に示すナットをボルトに挿入した状態の断
面図である。FIG. 2 is a sectional view showing a state where the nut shown in FIG. 1 is inserted into a bolt.
【図３】図１に示すナットとボルトで被挟持部材を挟持
した状態の断面図である。FIG. 3 is a cross-sectional view of a state in which a held member is held between a nut and a bolt shown in FIG. 1;
【図４】図１のものとは異なる実施例を示す図２と同様
の断面図である。FIG. 4 is a sectional view similar to FIG. 2 showing an embodiment different from that of FIG. 1;
【図５】他の実施例を示す図２と同様の断面図である。FIG. 5 is a sectional view similar to FIG. 2, showing another embodiment.
(１）ナット (２)ナット素片 (2a)前端 (2b)後端 (2c)環状溝 (３)連結片 (3a)貫通孔 (3b)傾斜面 (3c)前向突起 (４)めねじ孔 (4a)逃げ孔 (５)ボルト (5a)おねじ (5b)頭 (６)スプリングワッシャー (７)平ワッシャー (８)被締め付板 (９)Ｃ型リング(締付け手段） (1) Nut (2) Nut piece (2a) Front end (2b) Rear end (2c) Annular groove (3) Connecting piece (3a) Through hole (3b) Inclined surface (3c) Forward projection (4) Female screw Hole (4a) Escape hole (5) Bolt (5a) Male screw (5b) Head (6) Spring washer (7) Flat washer (8) Plate to be tightened (9) C-type ring (tightening means)
フロントページの続き (72)発明者 信沢 一雄 静岡県駿東郡清水町伏見770 (72)発明者 三森 康生 静岡県沼津市岡宮1458−25−２ＢContinued on the front page (72) Inventor Kazuo Shinazawa 770 Fushimi, Shimizu-cho, Sunto-gun, Shizuoka Prefecture (72) Inventor Yasuo Mimori 1458-25-2B, Okamiya, Numazu City, Shizuoka Prefecture
Claims (6)
割して形成した複数のナット素片の締め込み方向の先端
である前端同士を、螺合しようとするおねじの外径より
大きい雄ねじ貫通孔を有する連結片をもって連結したこ
とを特徴とする締め込み時に螺合するナット。An outer diameter of a male screw to be screwed into a front end which is a tip in a tightening direction of a plurality of nut pieces formed by radially dividing a cylindrical member provided with a female screw hole. A nut to be screwed in at the time of tightening, wherein the nut is connected by a connecting piece having a larger male screw through hole.
りもやや大径の逃げ孔を設けてなる請求項１記載の締め
込み時に螺合するナット。2. The nut to be screwed in at the time of tightening according to claim 1, wherein an escape hole having a slightly larger diameter is provided at a front end of the female screw hole of the nut piece.
同士を離間させる方向に反っている請求項１または２記
載の締め込み時に螺合するナット。3. The nut to be screwed in at the time of tightening according to claim 1, wherein the connecting piece is warped in a direction to separate rear ends of the plurality of nut pieces.
線より遠ざかる方向に前向突出する傾斜面としてなる請
求項３記載の締め込み時に螺合するナット。4. The nut that is screwed in at the time of tightening according to claim 3, wherein a front surface of the connecting piece is formed as an inclined surface that projects forward in a direction away from a dividing line of the nut element piece.
分割線より離れた個所に、前向突起を設けてなる請求項
３記載の締め込み時に螺合するナット。5. The nut to be screwed in at the time of tightening according to claim 3, wherein a forward projection is provided at a position on the front surface of the connecting piece that is separated from a dividing line of the nut element piece.
付け手段を備える請求項１〜５のいずれかに記載の締め
込み時に螺合するナット。6. The nut according to claim 1, further comprising a tightening means for tightening the two nut blanks in a closed state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33203696A JPH10169627A (en) | 1996-12-12 | 1996-12-12 | Nut screwed at time of tightening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33203696A JPH10169627A (en) | 1996-12-12 | 1996-12-12 | Nut screwed at time of tightening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10169627A true JPH10169627A (en) | 1998-06-23 |
Family
ID=18250428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33203696A Pending JPH10169627A (en) | 1996-12-12 | 1996-12-12 | Nut screwed at time of tightening |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10169627A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009526182A (en) * | 2006-02-08 | 2009-07-16 | シュニール、ディートマル | Nut with at least two parts |
-
1996
- 1996-12-12 JP JP33203696A patent/JPH10169627A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009526182A (en) * | 2006-02-08 | 2009-07-16 | シュニール、ディートマル | Nut with at least two parts |
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