JPH03125010A - Nut structure - Google Patents
Nut structureInfo
- Publication number
- JPH03125010A JPH03125010A JP26264189A JP26264189A JPH03125010A JP H03125010 A JPH03125010 A JP H03125010A JP 26264189 A JP26264189 A JP 26264189A JP 26264189 A JP26264189 A JP 26264189A JP H03125010 A JPH03125010 A JP H03125010A
- Authority
- JP
- Japan
- Prior art keywords
- bolt
- nut
- radius
- plate
- notch
- 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
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Dowels (AREA)
- Connection Of Plates (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ボルトにその径方向に挿脱自在な切欠き部を
有する複数個のナツトをその軸芯方向に並べ、それらナ
ツトを相対回転自在に連結してあるナツト構造に関する
。[Detailed Description of the Invention] [Industrial Application Field] The present invention involves arranging a plurality of nuts having notches that can be freely inserted and removed in the radial direction of the bolt in the axial direction of the bolt, and rotating the nuts relative to each other. It relates to a freely connected nut structure.
従来、この種のナット構造としては、ナットの切欠き部
の底部に、ボルトに螺着するための雌ネジ部を形成して
構成したものがあった（特開昭６３−２９３３１４号公
報）。Conventionally, this type of nut structure has been constructed by forming a female threaded portion at the bottom of a notch portion of the nut for screwing onto a bolt (Japanese Patent Application Laid-Open No. 63-293314).
つまり、複数個のナットは、同芯状に並んだ状態で相対
回転自在に連結してあるために、ボルトに対して一体に
組付は出来、しかも、ボルトに組付けるのに、複数個の
ナットに形成した切欠きを一方向に向けた状態で、その
切欠きをホルトの長手方向における中間部に径方向に挿
入させ、各ナツトを相対的に回転させれば、各ナツトに
形成した切欠きは、夫々異なった方向に向くために、ボ
ルトとナツトの離脱が阻止されると共に、ボルトにナツ
ト全てが螺合して、隣接するナットどうしが緩み止め状
態に締付は合えるのであった。In other words, since multiple nuts are arranged concentrically and connected to each other so that they can rotate freely relative to each other, they can be assembled to the bolt as one unit. With the notch formed in the nut facing in one direction, insert the notch radially into the middle part of the bolt in the longitudinal direction, and rotate each nut relative to each other. Since the notches face in different directions, the bolts and nuts are prevented from coming apart, and all the nuts are threaded onto the bolts, allowing adjacent nuts to be tightened to prevent them from loosening.
しかし、上述した従来技術によれば、隣接するナット同
士の緩み止め状態への締付力は、ボルトとナットの互い
のネジ面の摩擦力に基づくものであり、ボルト、ナツト
夫々の交差等の影響でその締付力は必ずしも一様でな（
、場合によっては、充分な締付力が働かずに緩みを生ず
るという虞もあった。However, according to the above-mentioned conventional technology, the tightening force between adjacent nuts to prevent them from loosening is based on the frictional force between the threaded surfaces of the bolt and the nut, and is based on the frictional force between the threaded surfaces of the bolt and the nut. Due to the influence, the tightening force is not necessarily uniform (
In some cases, there was a risk that sufficient tightening force would not be applied and the product would come loose.
本発明は、上述の問題点に鑑み、ボルトの任意の箇所で
装着自在としながらも、確実に緩み止め状態に締付可能
なナット構造を実現するものである。In view of the above-mentioned problems, the present invention realizes a nut structure that can be freely attached to a bolt at any location and yet can be reliably tightened to prevent loosening.
この目的を達成するため、本発明によるナツト構造の特
徴構成は、前記切欠き部夫々の底部に前記ボルトを係止
する板状体を設け、その板状体の前記ボルトに対する係
止部の厚さを前記ボルトのピッチ以下の厚さとし、前記
係止部の姿勢を前記ボルトの山部と交差する角度に設定
し、前記係止部のうち前記山部との交差箇所にその山部
に対して咬合自在な切欠部を形成し、前記係止部と前記
ナットの回転軸芯との距離［。In order to achieve this object, the characteristic structure of the nut structure according to the present invention is such that a plate-like body for locking the bolt is provided at the bottom of each of the notch parts, and the thickness of the locking part of the plate-like body for the bolt is The thickness of the locking portion is set to be less than or equal to the pitch of the bolt, the posture of the locking portion is set at an angle that intersects with the crest of the bolt, and a portion of the locking portion where the locking portion intersects with the crest is set relative to the crest. to form a notch that can be freely engaged, and the distance between the locking part and the rotation axis of the nut [.
が、前記ボルトの山部の半径Ｒより小となるように前記
係止部を配置してあることにある。However, the locking portion is arranged so that the radius R is smaller than the radius R of the crest of the bolt.
前記ナツトと前記板状体とを一体に構成しても良い。The nut and the plate-shaped body may be integrally formed.
前記ナツトと前記板状体とを別体で構成しても良い。The nut and the plate-shaped body may be constructed separately.
前記距１ＴｉｌｌＬが前記ボルトの谷部の半径Ｒ″より
小となるように前記係止部を配置してあることが好まし
い。It is preferable that the locking portion is arranged such that the distance 1TillL is smaller than the radius R″ of the trough of the bolt.
つまり、各ナツト切欠き部の底部に設けた板状体のうち
ボルトに対する係止部の姿勢をボルトの山部と交差する
角度に設定し、且つ、前記係止部とナツトの回転軸心と
の距離りを、ボルトの山部の半径Ｒより小にしてあるこ
とから、ボルトにナットをその切欠き部から挿入すると
き、前記係止部がボルトのネジの山部に接当するため、
ナツトの回転軸心はボルトの軸心に対してナツトの挿入
部側にずれることになる。In other words, the posture of the locking portion of the plate-shaped body provided at the bottom of each nut notch relative to the bolt is set at an angle that intersects the peak of the bolt, and the locking portion and the rotation axis of the nut are aligned. Since the distance is smaller than the radius R of the crest of the bolt, when the nut is inserted into the bolt from the notch, the locking part comes into contact with the crest of the thread of the bolt.
The axis of rotation of the nut is shifted toward the insertion portion of the nut with respect to the axis of the bolt.
その状態から各ナツトを相対的に回転させると、回転に
伴い、前記係止部に形成の切欠き部はボルトの山部に咬
合し、ナツトの回転軸心とボルトの軸心とが一致するよ
うにナツトとボルトが相対移動するのである。When each nut is rotated relative to each other from this state, as the nuts rotate, the notch formed in the locking portion engages with the peak of the bolt, and the axis of rotation of the nut coincides with the axis of the bolt. This is how the nut and bolt move relative to each other.
その結果、前記係止部の切欠き部がボルトの山部を挟む
とともに、前記係止部がボルトのネジ山の斜面と摩擦接
触することとなり、ナットどうしは緩み止め状態に完全
に締付は合えるのである。As a result, the notch of the locking portion pinches the crest of the bolt, and the locking portion comes into frictional contact with the slope of the thread of the bolt, and the nuts are not completely tightened to prevent loosening. It can be matched.
さらに、前記係止部とナットの回転軸心との距離りをボ
ルトの谷部の半径Ｒ″より小にすると、前記係止部の切
欠き部とボルトの山部とが、よりしっかりと咬合するの
で、締付は力も強くなる。尚、この場合、ナットの回転
軸心とボルトの軸心とは締付は状態において一致するこ
とはない。Furthermore, if the distance between the locking part and the rotation axis of the nut is made smaller than the radius R'' of the trough of the bolt, the notch of the locking part and the peak of the bolt can be more firmly engaged. Therefore, the tightening force becomes stronger.In this case, the axis of rotation of the nut and the axis of the bolt do not coincide during tightening.
従って本発明によるナット構造によればボルトの任意の
箇所にナツトを挿着自在としながらも、挿着したナツト
を確実に緩み止め状態に締付けることができるようにな
った。Therefore, according to the nut structure according to the present invention, the nut can be inserted into any desired part of the bolt, and yet the inserted nut can be reliably tightened to prevent loosening.
以下に本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below based on the drawings.
本発明によるナット構造は、第４図に示すように、ボル
ト（１）に対して、その径方向に挿脱自在な切欠き部（
３）を有する２個のナット（２）をその軸心方向に並べ
て相対回転自在に連結して構成してある。As shown in FIG. 4, the nut structure according to the present invention has a notch (
3) are arranged in the axial direction and connected to each other so as to be relatively rotatable.
前記ナツト（２）間の連結部は、ナツト（２）夫々の接
合面に形成の係止突起（２ａ）を連結部材（５）で摺動
自在に係止して構成してあり、もって、ナツト（２）ど
うしの相対移動を阻止するとともに、ナツト（２）どう
しの相対回転を許容している。The connecting portion between the nuts (2) is constructed by slidably locking a locking protrusion (2a) formed on the joint surface of each nut (2) with a connecting member (5). This prevents relative movement between the nuts (2) and allows relative rotation between the nuts (2).
第１図乃至第３図に示すように、前記ナツト（２）夫々
には、その切欠き部（３）の内周に沿って、平面視Ｕ字
形の板金でなる板状体（４）を設けである。As shown in FIGS. 1 to 3, each of the nuts (2) has a plate-like body (4) made of a sheet metal that is U-shaped in plan view along the inner periphery of the notch (3). It is a provision.
前記板状体（４）の湾曲部の内周は、前記ナツトの回転
軸心を中心とする半径りの円弧を形成しており、その半
径りはボルト（１）の山部の半径Ｒより小に設定してあ
る。The inner periphery of the curved portion of the plate-shaped body (4) forms an arc with a radius centered on the rotation axis of the nut, and the radius is smaller than the radius R of the peak of the bolt (1). It is set to small.
前記板状体（４）の内周部の厚さは、ボルト（１）のピ
ッチ以下の厚さで、その湾曲部はボルト（１）の山部を
交差する角度に配置してあり、さらに、前記湾曲部のう
ち前記ボルト（１）の山部と交差する位置には、７字形
の切欠き部（４ｂ）を形成してある。The thickness of the inner peripheral part of the plate-shaped body (4) is equal to or less than the pitch of the bolt (1), and the curved part thereof is arranged at an angle that intersects the peak part of the bolt (1), and further A 7-shaped notch (4b) is formed in the curved portion at a position that intersects with the peak of the bolt (1).
ナツト間の前記連結部における径方向のガタは、前記係
止部（４ａ）と前記ナツト（２）の回転軸心との距離り
とボルト（１）の谷部の半径Ｒ°との差Ｌ−Ｒ”より小
に構成してあり、前記ナツト（２） 、 （２）間の相
対回転は、約４５°以上回転可能に構成してある。The radial play in the connecting part between the nuts is the difference L between the distance between the locking part (4a) and the rotation axis of the nut (2) and the radius R° of the trough of the bolt (1). -R'', and the relative rotation between the nuts (2) and (2) is configured to be able to rotate by about 45 degrees or more.
上述のナツト（２）をポル１−（１）に係止するには、
まず、ナツト（２）夫々の切欠き部（３）を一方向に向
け、その切欠き部（３）をボルト（１）の長手方向の中
間部に、その径方向に挿入する。To lock the nut (2) mentioned above to the port 1-(1), first, orient the notch (3) of each nut (2) in one direction, and then insert the notch (3) into the bolt ( 1) Insert in the radial direction into the longitudinally intermediate portion of the tube.
次に、ボルト（１）の長手方向に沿って隣接するナツト
（２）を夫々相対回転させる。Next, the nuts (2) adjacent to each other along the longitudinal direction of the bolt (1) are rotated relative to each other.
これにより、前記湾曲部に形成の７字形の切欠き部（４
ｂ）がボルトの山部に咬合し、さらにナツト（２）を回
転させることにより、前記切欠き部（４ｂ）の周辺部が
前記山部の斜面と摩擦接触することにより、締付力が働
くのである。As a result, a figure 7-shaped notch (4
b) engages with the crest of the bolt, and by further rotating the nut (2), the peripheral part of the notch (4b) comes into frictional contact with the slope of the crest, thereby exerting a tightening force. It is.
すなわち、前記板状体（４）の内周部がボルト（１）に
対する係止部（４ａ）となる。That is, the inner peripheral portion of the plate-shaped body (4) becomes a locking portion (4a) for the bolt (1).
前記ナット（２）の相対的な回転方向は、左右いずれの
方向であっても、前記係止部（４ａ）による締付力は働
く。The tightening force of the locking portion (4a) acts regardless of whether the nut (2) is rotated relative to the left or right direction.
さらに、第３図に示すように、ナツト（２）を、ボルト
（１）の軸心方向に互いに離れる方向に回転させた場合
には、ナツト（２）の係止突起（２ａ）と前記連結部材
（５）との間に働く摩擦力が、また、互いに近づく方・
向に回転させた場合には、ナツト（２）の係止突起（２
ａ）間に働く摩擦力が、前記係止部（４ａ）による締付
力と協働して緩み止め状態に締付は合うのである。Furthermore, as shown in FIG. 3, when the nut (2) is rotated in the direction away from each other in the axial direction of the bolt (1), the locking protrusion (2a) of the nut (2) and the connection The frictional force acting between the member (5) and the
When the nut (2) is rotated in the opposite direction, the locking protrusion (2) of the nut (2)
a) The frictional force acting between the locking portions (4a) cooperates with the tightening force of the locking portion (4a) to maintain the locking state.
尚、前記板状体（４）は、弾性変形自在の材質で構成し
てあるので、前記切欠き部（４ｂ）は前記ボルト（１）
の山部をその側斜面から弾性変形状態で、挟持すること
になり、係止力が大となる。In addition, since the plate-shaped body (4) is made of an elastically deformable material, the notch (4b) is formed on the bolt (1).
This means that the mountain portion of the lock is clamped from the side slope in an elastically deformed state, resulting in a large locking force.
以下に別実施例を説明する。 Another embodiment will be described below.
１、先の実施例では、ボルトに対する係止部材としての
板状体をナツトとは別に設けているが、板状体としては
、ナットと一体に構成しても良い。1. In the previous embodiment, the plate-shaped body as a locking member for the bolt is provided separately from the nut, but the plate-shaped body may be constructed integrally with the nut.
２、 先の実施例では、板状体のうち内周部、すなわち
係止部の厚さをボルトのピッチ以下の厚さに設定してい
るが、板状体全てにわたりボルトのピッチ以下の厚さに
設定しても良い。2. In the previous embodiment, the thickness of the inner peripheral part of the plate-like body, that is, the locking part, is set to be less than the pitch of the bolts, but the thickness of the entire plate-like body is less than the pitch of the bolts. You can also set it to
３、先の実施例では、板状体に形成の切欠き部の形状を
ｖ字型としているが、ボルトの山部と咬合する切欠き部
であれば、Ｕ半径であっても他の形状であっても良い。3. In the previous embodiment, the shape of the notch formed in the plate-shaped body is V-shaped, but any other shape may be used, even if it is a U radius, as long as the notch engages with the peak of the bolt. It may be.
４、先の実施例では、板状体の姿勢をボルトの山部のう
ち１つの山部と交差すべく設定していたが、板状体の姿
勢としては、１以上の山部と交差すべく設定しても良い
。この場合、板状体のうち、各交差部が係合する切欠き
部を設けることで同様の効果が得られる。4. In the previous embodiment, the posture of the plate-like body was set so that it intersects with one of the peaks of the bolt, but the posture of the plate-like body is set so that it intersects with one or more peaks. It may be set as desired. In this case, the same effect can be obtained by providing notches in the plate-shaped body with which the respective intersections engage.
さらに、ボルトの山部に対する板状体の交差角度は任意
であり、第５図及び第６図に示すように、リード角（α
）より大なる角度であっても、小なる角度であっても良
い。Furthermore, the intersecting angle of the plate with respect to the crest of the bolt is arbitrary, and as shown in FIGS. 5 and 6, the lead angle (α
) The angle may be larger or smaller.
５、先の実施例では、板状体の湾曲部の内周の半径りを
ボルトの山部の半径Ｒより小に設定しているが、半径り
を、ボルトの谷部の半径Ｒ゛より小に設定することによ
り、板状体に形成の切欠部と、ボルトの山部との咬合の
度合を犬にし、締付力を増すことができる。5. In the previous embodiment, the radius of the inner periphery of the curved portion of the plate-shaped body is set to be smaller than the radius R of the crest of the bolt, but the radius is set to be smaller than the radius R of the trough of the bolt. By setting it to a small value, the degree of engagement between the notch formed in the plate-shaped body and the peak of the bolt can be adjusted to a dog level, and the tightening force can be increased.
６、先の実施例では、ナツトの切欠き部に沿って、平面
視Ｕ字形の板金でなる板状体を設けているが、板状体と
しては、この形状に限定するものではなく、第７図に示
すように、コの字形の形状であっても良い。6. In the previous embodiment, a plate-shaped body made of a U-shaped sheet metal in plan view is provided along the notch of the nut, but the plate-shaped body is not limited to this shape. As shown in FIG. 7, it may be U-shaped.
さらには、第８図及び第９図に示すように、ナツトの切
欠き部のうち底部のみに板状体を設けても良い。Furthermore, as shown in FIGS. 8 and 9, a plate-like body may be provided only at the bottom of the notch of the nut.
７、先の実施例や別実施例１〜６において、ナツトに設
ける板状体は単一のものを説明したが、板状体としては
、ナツトに複数設けてもよい。その場合には、ボルトに
対する係止力は、それだけ強くなるのである。7. In the previous embodiments and other embodiments 1 to 6, a single plate-shaped body is provided on the nut, but a plurality of plate-shaped bodies may be provided on the nut. In that case, the locking force on the bolt becomes stronger accordingly.
８、尚、特許請求の範囲の項に図面との対照を便利にす
る為に符号を記すが、該記入により本発明は添付図面の
構造に限定されるものではない。8. Although reference numerals are written in the claims section for convenience of comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
図面は本発明に係るナツト構造の実施例を示し、第１図
はナツトの平面図、第２図は同正面図、第３図はボルト
へのナツトの挿入状態を示す正面図、第４図はナツトの
分解斜視図、第５図は要部の正面図であり、第６図乃至
第９図は別実施例を示し、第６図−如当４−一は要部の
正面図、第７図、第８図及び第９図は要部の平面図であ
る。
（１）・・・・・・ボルト、（２）・・・・・・ナツト
、（３）・・・・・・切欠き部、（４）・・・・・・板
状体、（４ａ）・・・・・・係止部、（４ｂ）・・・・
・・切欠き部。The drawings show an embodiment of the nut structure according to the present invention, and FIG. 1 is a plan view of the nut, FIG. 2 is a front view thereof, FIG. 3 is a front view showing a state in which the nut is inserted into a bolt, and FIG. 4 is a top view of the nut. is an exploded perspective view of the nut, FIG. 5 is a front view of the main part, FIGS. 6 to 9 show another embodiment, and FIG. 6-4-1 is a front view of the main part, and FIG. 7, 8 and 9 are plan views of main parts. (1)...Bolt, (2)...Nut, (3)...Notch, (4)...Plate, (4a )...Locking part, (4b)...
...Notch.
Claims (1)
３）を有する複数個のナット（２）をその軸芯方向に並
べ、それらナット（２）を相対回転自在に連結してある
ナット構造であって、前記切欠き部（３）夫々の底部に
前記ボルト（１）を係止する板状体（４）を設け、 （ｉ）その板状体（４）の前記ボルトに対する係止部（
４ａ）の厚さを前記ボルトのピッチ以下の厚さとし、 （ｉｉ）前記係止部（４ａ）の姿勢を前記ボルト（１）
の山部と交差する角度に設定し、（ｉｉｉ）前記係止部
（４ａ）のうち前記山部との交差箇所にその山部に対し
て咬合自在な切欠部（４ｂ）を形成し、 （ｉｖ）前記係止部（４ａ）と前記ナット（２）の回転
軸芯との距離Ｌが、前記ボルト（１）の山部の半径Ｒよ
り小となるように前記係止部（４ａ）を配置してあるナ
ット構造。２、前記ナット（２）と前記板状体（４）と
を一体に構成してある請求項１記載のナット構造。 ３、前記ナット（２）と前記板状体（４）とを別体で構
成してある請求項１記載のナット構造。 ４、前記距離Ｌが前記ボルトの谷部の半径Ｒ’より小と
なるように前記係止部（４ａ）を配置してある請求項１
記載のナット構造。[Claims] 1. The bolt (1) has a notch (
A nut structure in which a plurality of nuts (2) having a plurality of notches (3) are arranged in the axial direction and connected to each other so as to be relatively rotatable, and the nut structure has a plurality of nuts (2) having a A plate-shaped body (4) for locking the bolt (1) is provided, and (i) a locking part of the plate-shaped body (4) for the bolt (
(ii) the posture of the locking portion (4a) is set to be the same as the bolt (1);
(iii) forming a notch (4b) that can freely engage with the crest at a point of intersection with the ridge of the locking part (4a); iv) The locking portion (4a) is arranged so that the distance L between the locking portion (4a) and the rotation axis of the nut (2) is smaller than the radius R of the peak of the bolt (1). Arranged nut structure. 2. The nut structure according to claim 1, wherein the nut (2) and the plate-shaped body (4) are integrally constructed. 3. The nut structure according to claim 1, wherein the nut (2) and the plate-shaped body (4) are constructed separately. 4. Claim 1, wherein the locking portion (4a) is arranged such that the distance L is smaller than the radius R' of the valley of the bolt.
Nut structure as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26264189A JP2633038B2 (en) | 1989-10-07 | 1989-10-07 | Nut structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26264189A JP2633038B2 (en) | 1989-10-07 | 1989-10-07 | Nut structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03125010A true JPH03125010A (en) | 1991-05-28 |
| JP2633038B2 JP2633038B2 (en) | 1997-07-23 |
Family
ID=17378607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26264189A Expired - Lifetime JP2633038B2 (en) | 1989-10-07 | 1989-10-07 | Nut structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2633038B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006123844A1 (en) * | 2005-05-20 | 2006-11-23 | Atushi Ota | Intermediate insertion type nut |
| JP2017160769A (en) * | 2016-03-03 | 2017-09-14 | 日鐵住金建材株式会社 | Extrusion jig of multistage drain pipe and extrusion method of multistage drain pipe |
-
1989
- 1989-10-07 JP JP26264189A patent/JP2633038B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006123844A1 (en) * | 2005-05-20 | 2006-11-23 | Atushi Ota | Intermediate insertion type nut |
| JP2017160769A (en) * | 2016-03-03 | 2017-09-14 | 日鐵住金建材株式会社 | Extrusion jig of multistage drain pipe and extrusion method of multistage drain pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2633038B2 (en) | 1997-07-23 |
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