JP2009287766A - Nut member - Google Patents

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JP2009287766A
JP2009287766A JP2008162534A JP2008162534A JP2009287766A JP 2009287766 A JP2009287766 A JP 2009287766A JP 2008162534 A JP2008162534 A JP 2008162534A JP 2008162534 A JP2008162534 A JP 2008162534A JP 2009287766 A JP2009287766 A JP 2009287766A
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nut
fastened
flange
nut member
fastening
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Tetsuya Watanabe
哲哉 渡辺
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TAKENAKA KK
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TAKENAKA KK
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Abstract

<P>PROBLEM TO BE SOLVED: To provide, at a low cost, a nut member not requiring to set to a prescribed fastening torque before using a tool as in the case of a tool including an idling function, enabling demanded fastening torque to be surely applied with simple fastening work while using a normal tool when a fastened material is fastened, and providing reliable fastening performances without dispersion regardless of the worker, in a light weight steel skeleton assembly using flange nuts for prefabrication or the like. <P>SOLUTION: A nut includes a nut part 2 and a flange part 3 having a diameter larger than an outer diameter of the nut part 2 as one unit. A groove part 4 having a prescribed depth is formed at a boundary section of the nut part 2 and the flange parts 3 in parallel with a lower surface of the flange part 3. A connection part 5 is formed between the groove part 4 and a thread formed part. The connection part 5 is destroyed at the prescribed fastening torque when the fastened member is fastened cooperatively with a bolt member. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、建築物の組立特にプレハブ等の軽量鉄骨を組立てる時にボルト部材と協働して複数の被締結部材を所定の締付トルクでもって固定するナット部材に関するものである。  The present invention relates to a nut member that fixes a plurality of members to be fastened with a predetermined tightening torque in cooperation with a bolt member when a lightweight steel frame such as a prefab is assembled.

プレハブ等の軽量鉄骨を組立てる場合に、ボルトとナットを使用することは、極当たり前のことであり、又ボルトとナットにワッシャーを併用することも自然に行なわれている。こうした状況の中で、近年ではナットとして、ナット本体部外形より径を大きくしたフランジ部を一体的に形成した所謂フランジナットが広く使用されるようになっている。フランジナットは、被締結部材の締結時に径の大きなフランジ部が被締結部材の面に当接するようになるので、通常のナットを使用した場合と比較すると抜群の安定性を得ることが出来る。  When assembling a lightweight steel frame such as a prefab, it is natural to use bolts and nuts, and it is also natural to use washers in combination with bolts and nuts. Under these circumstances, a so-called flange nut in which a flange portion having a diameter larger than the outer shape of the nut main body is integrally formed is widely used as a nut in recent years. In the flange nut, the flange portion having a large diameter comes into contact with the surface of the member to be fastened when the member to be fastened is fastened, so that excellent stability can be obtained as compared with the case where a normal nut is used.

そして、プレハブ等の軽量鉄骨の組立に於いて、安定性に加えて重要なのは、適正な締付トルクを付与した状態で被締結部材を固定することであって、従来より広く使用されている方法は、一定の締付トルクに達した時点で空回りする機能を有した工具(例えばトルクレンチ等)を使用することである。そして時には作業者の感に頼ることも少なくなかった。  And in the assembly of lightweight steel frames such as prefabs, what is important in addition to stability is fixing the member to be fastened with an appropriate tightening torque applied, which is a more widely used method than before. Is to use a tool (for example, a torque wrench or the like) having a function of rotating idly when a certain tightening torque is reached. And sometimes it relied on the operator's feeling.

作業者の感に頼ることは論外であるが、実際の作業に於いては、少なからず行われていることであり、適正な締付トルクを標準的に確保することは難しく、信頼性に欠けることは、当然のことである。又、空回りする機能を有した工具を使用する場合は、工具使用前に所定の締付トルクに設定する必要があり、しかも、その設定作業は、ケースバイケースで都度設定しなければならない。そして締付作業は、空回りした時点が終了ではなく、その後空回り操作を数回繰り返すことが常識となっており、作業性には大きな問題があった。又通常の締付工具と比較して高価であることも至極当然のことである。尚更に、所定の締付トルクを付与する他の従来技術は、いずれもコスト的に問題があった。  Relying on the operator's feeling is out of the question, but in actual work, it is not a little, and it is difficult to ensure proper tightening torque as standard, and it is not reliable. That is natural. In addition, when using a tool having a function of idling, it is necessary to set a predetermined tightening torque before using the tool, and the setting operation must be set on a case-by-case basis. The tightening work is not finished when it is idle, and it is common knowledge that the idle operation is repeated several times thereafter, which has a big problem in workability. In addition, it is quite natural that it is more expensive than a normal tightening tool. Furthermore, all other conventional techniques for applying a predetermined tightening torque have a problem in cost.

本発明は、こうした従来技術の問題点に鑑み、フランジナットを使用したプレハブ等の軽量鉄骨組立に於いて、空回りする機能を有した工具のように、工具使用前に所定の締付トルクに設定する必要がなく、通常の工具を使用しながら、簡単な締付作業でもって、被締結部材締結時に要求される締付トルクを確実に付与することが出来るようにし、更に作業者が変わってもバラツキのない信頼性の高い締付性能が得られるナット部材を安価に提供することを目的としている。  In view of the problems of the prior art, the present invention sets a predetermined tightening torque before using a tool, such as a tool having a function of spinning in a lightweight steel assembly such as a prefab using a flange nut. It is not necessary to use a normal tool, and it is possible to reliably apply the tightening torque required at the time of fastening the member to be fastened with simple tightening work. An object of the present invention is to provide a nut member that can provide highly reliable tightening performance without variation at low cost.

上記目的を達成するために、請求項1記載の発明は、ナット部と該ナット部の外形より径を大きくしたフランジ部を一体的に有したナットであって、前記ナット部と前記フランジ部の境界部分に、フランジ部下面に略平行状に所定の深さを持った溝部を形成して、該溝部とネジ形成部の間に連結部を形成し、ボルト部材と協働して被締結部材を締め付けた時、所定の締付トルクでもって、前記連結部が破壊するようにしたものである。この様に構成したことにより、通常の工具を使用しながら、普通の単純な締付作業でもって、被締結部材締結時に要求される締付トルクを確実に付与することが出来るようになり、更に作業者が変わってもバラツキのない信頼性の高い締付性能を得ることが出来る。  In order to achieve the above object, the invention according to claim 1 is a nut integrally including a nut portion and a flange portion having a diameter larger than the outer shape of the nut portion, wherein the nut portion and the flange portion At the boundary portion, a groove portion having a predetermined depth is formed substantially parallel to the lower surface of the flange portion, a connecting portion is formed between the groove portion and the screw forming portion, and the member to be fastened in cooperation with the bolt member When the is tightened, the connecting portion is broken with a predetermined tightening torque. With this configuration, it is possible to reliably apply the tightening torque required at the time of fastening the member to be fastened with a normal simple tightening operation using a normal tool. Even if the operator changes, reliable tightening performance without variation can be obtained.

請求項2記載の発明は、ネジ成形部の下側部分であって、溝部の位置より幾分上方にかけて空洞部を形成し、該空洞部と前記溝部との間に連結部を形成したものである。この様に構成したことにより、被締結部材締結時に要求される締付トルクを付与するのに重要な係わり合いのある連結部の剛性即ち破壊に対する応力設定が簡単に且つ確実に行なえるようになり、それに伴い被締結部材締結時に要求される締付トルクを更に高い精度でバラツキを無くすことが可能となり、信頼性の高い締付性能を得ることが出来る。  The invention according to claim 2 is a lower portion of the screw forming portion, in which a hollow portion is formed slightly above the position of the groove portion, and a connecting portion is formed between the hollow portion and the groove portion. is there. With this configuration, it is possible to easily and surely set the stress for the rigidity of the connecting portion, which is important for giving the tightening torque required for fastening the fastened member, that is, the stress for the breakage. As a result, it is possible to eliminate variations in the tightening torque required at the time of fastening the fastened member with higher accuracy and to obtain highly reliable tightening performance.

請求項3記載の発明は、下側に筒状部を一体的に形成したナットの筒状部にワッシャーを嵌合し、前記筒状部の端部をカシメることでワッシャーとナットを一体化し、ボルト部材と協働して被締結部材を締め付けた時、所定の締付トルクでもって、前記筒状部が破壊するようにしたものである。この様に構成したことにより、通常の工具を使用しながら、普通の単純な締付作業でもって、被締結部材締結時に要求される締付トルクを確実に付与することが出来るようになる。更に作業者が変わってもバラツキのない信頼性の高い締付性能を得ることが出来るばかりでなく、ナットとワッシャーをカシメで一体化するようにしたので、同じナットに対して必要に応じて色々なワッシャーを使用することが出来、自由度が広がり、被締結部材側の仕様に合わせることも可能となる。  According to a third aspect of the present invention, the washer and the nut are integrated by fitting a washer to the tubular portion of the nut integrally formed with the tubular portion on the lower side and crimping the end of the tubular portion. When the member to be fastened is tightened in cooperation with the bolt member, the cylindrical portion is broken with a predetermined tightening torque. With such a configuration, it is possible to reliably apply the tightening torque required at the time of fastening the member to be fastened by an ordinary simple tightening operation while using a normal tool. Furthermore, not only can the tightening performance be reliable without variation even if the operator changes, but the nut and washer are integrated by caulking, so there are various requirements for the same nut. Can be used, the degree of freedom is widened, and it is possible to match the specifications of the fastened member side.

本発明は、以上説明したように構成されているので、下記に説明するような効果を奏する。  Since the present invention is configured as described above, the following effects can be obtained.

本発明によるネジ部材は、ナット部と該ナット部の外形より径を大きくしたフランジ部を一体的に有したナットであって、前記ナット部と前記フランジ部の境界部分に、フランジ部下面に略平行状に所定の深さを持った溝部を形成して、該溝部とネジ形成部の間に連結部を形成し、ボルト部材と協働して被締結部材を締め付けた時、所定の締付トルクでもって、前記連結部が破壊するようにしたので、前記連結部に仕様に基づく剛性即ち破壊に対する応力を設定することが可能となり、通常の工具を使用しながら、普通の単純な締付作業でもって、被締結部材締結時に要求される締付トルクを確実に付与することが出来るようになり、更に作業者が変わってもバラツキのない信頼性の高い締付性能を得ることが出来る。尚更に、単に締付操作をするだけで、被締結部材締結時に要求される締付トルクを確実に付与することが出来るようになり、作業性の向上が図れる。  The screw member according to the present invention is a nut that integrally includes a nut portion and a flange portion having a diameter larger than the outer shape of the nut portion, and is substantially on the lower surface of the flange portion at a boundary portion between the nut portion and the flange portion. When a groove portion having a predetermined depth is formed in parallel, a connecting portion is formed between the groove portion and the screw forming portion, and when the fastened member is tightened in cooperation with the bolt member, the predetermined tightening is performed. Since the connecting portion is broken by torque, it is possible to set rigidity, that is, stress against breakage, based on the specification to the connecting portion, and a normal simple tightening operation using a normal tool. Therefore, it is possible to reliably apply the tightening torque required at the time of fastening the fastened member, and it is possible to obtain highly reliable tightening performance without variation even if the operator changes. Furthermore, it is possible to reliably apply the tightening torque required at the time of fastening the fastened member by simply performing the tightening operation, and the workability can be improved.

更に、本発明によるネジ部材は、ネジ成形部の下側部分であって、溝部の位置より幾分上方にかけて空洞部を形成し、該空洞部と前記溝部との間に連結部を形成したので、連結部が溝部と空洞部という凹凸のない平坦状部分の間に形成されているため、肉厚の精度を確保することが容易になり、それに伴い応力設定が極めてし易くなり且つ精度を高めることが出来ることになり、被締結部材締結時に要求される締付トルクを付与するのに重要な係わり合いのある連結部の剛性即ち破壊に対する応力設定が簡単に且つ確実に行なえるようになって、被締結部材締結時に要求される締付トルクを更に高い精度でバラツキを無くすことが可能となり、信頼性の高い締付性能を得ることが出来る  Further, the screw member according to the present invention is a lower portion of the screw forming portion, and a cavity portion is formed slightly above the position of the groove portion, and a connecting portion is formed between the cavity portion and the groove portion. Since the connecting portion is formed between the flat portion having no irregularities such as the groove portion and the hollow portion, it becomes easy to ensure the accuracy of the thickness, and accordingly, the stress setting becomes very easy and the accuracy is improved. As a result, it is possible to easily and reliably set the rigidity of the connecting portion, which is important for giving the tightening torque required when fastening the fastened member, that is, the stress for fracture. , It becomes possible to eliminate the variation in the tightening torque required when fastening the tightened member with higher accuracy, and to obtain a highly reliable tightening performance.

更に、本発明によるネジ部材は、下側に筒状部を一体的に形成したナットの筒状部にワッシャーを嵌合し、前記筒状部の端部をカシメることでワッシャーとナットを一体化し、ボルト部材と協働して被締結部材を締め付けた時、所定の締付トルクでもって、前記筒状部が破壊するようにしたので、通常の工具を使用しながら、普通の単純な締付作業でもって、被締結部材締結時に要求される締付トルクを確実に付与することが出来るようになる。更に作業者が変わってもバラツキのない信頼性の高い締付性能を得ることが出来るばかりでなく、ナットとワッシャーをカシメで一体化するようにしたことから、同じナットに対して必要に応じて、外形の大きさや厚さそして湾曲の度合更には材質等色々なワッシャーが使用可能となり、自由度が広がり、被締結部材側の仕様に容易に合わせることも出来るようになる。  Furthermore, in the screw member according to the present invention, the washer and the nut are integrated by fitting the washer to the cylindrical portion of the nut formed integrally with the cylindrical portion on the lower side and crimping the end of the cylindrical portion. When the tightened member is tightened in cooperation with the bolt member, the cylindrical portion is broken with a predetermined tightening torque. With the attaching operation, it is possible to reliably apply the tightening torque required when the fastened member is fastened. Furthermore, not only can the tightening performance be reliable without variation even if the operator changes, but the nut and washer are integrated by caulking so that the same nut can be used as required. Various types of washers, such as the size and thickness of the outer shape, the degree of curvature, and the material, can be used, and the degree of freedom is widened so that it can be easily adapted to the specifications of the fastened member side.

以下、本発明の実施の形態を図1〜図11に基づき詳細に説明する。図1は本発明によるナット部材の一実施形態を示す平面図、図2は部分的な断面を含む図1のP矢視図であり、図3は図2のX部拡大詳細図である。図4は本発明によるナット部材の他の実施形態を示し、図2のX部に相当する拡大詳細図であって、図5は本発明によるナット部材の更に他の実施形態を示す平面図である。図6は部分的な断面を含む図5のQ矢視図である。図7は本発明によるナット部材の更に他の実施形態(図5及び図6)に於けるナットの部分的な断面を含む側面図、図8は本発明によるナット部材の更に他の実施形態(図5及び図6)に於けるワッシャーの平面図であって、図9は図8のA−A断面図である。図10は本発明によるナット部材の使用状態を示す簡略説明図であり、図11は図10のR矢視図である。  Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 is a plan view showing an embodiment of a nut member according to the present invention, FIG. 2 is a P arrow view of FIG. 1 including a partial cross section, and FIG. 3 is an enlarged detail view of a portion X of FIG. FIG. 4 shows another embodiment of the nut member according to the present invention, and is an enlarged detail view corresponding to the portion X of FIG. 2, and FIG. 5 is a plan view showing still another embodiment of the nut member according to the present invention. is there. 6 is a view taken in the direction of arrow Q in FIG. 5 including a partial cross section. FIG. 7 is a side view including a partial cross section of a nut in still another embodiment (FIGS. 5 and 6) of the nut member according to the present invention, and FIG. 8 is still another embodiment of the nut member according to the present invention (FIG. FIG. 9 is a plan view of the washer in FIGS. 5 and 6, and FIG. 9 is a cross-sectional view taken along line AA in FIG. 8. FIG. 10 is a simplified explanatory view showing the use state of the nut member according to the present invention, and FIG. 11 is a view as seen from the arrow R of FIG.

それでは図1〜図3により、第一の実施形態について説明する。1はナット部2と該ナット部2の外形より大きな径を持つフランジ部3を一体的に形成したナット部材である。該ナット部材1には、ナット部2とフランジ部3の境界部分或いは境界部分近傍であって、フランジ部3の下面に略平行状に、所定の深さを持った切込状の溝部4が形成されている。そして、この溝部4とネジ形成部(ネジ谷部)の間には、連結部5が形成されている。  The first embodiment will be described with reference to FIGS. Reference numeral 1 denotes a nut member in which a nut portion 2 and a flange portion 3 having a diameter larger than the outer shape of the nut portion 2 are integrally formed. The nut member 1 has a notch-shaped groove portion 4 having a predetermined depth at a boundary portion between the nut portion 2 and the flange portion 3 or in the vicinity of the boundary portion and substantially parallel to the lower surface of the flange portion 3. Is formed. A connecting portion 5 is formed between the groove portion 4 and the screw forming portion (screw valley portion).

連結部5は、本発明によるナット部材にとって、最も重要な部分であるので、図3を参照しながら更に詳しく説明することにする。連結部5は、後で詳しく説明するように、ボルト部材と協働して、被締結部材を締結する際、ナット部2に所定の締付トルクが負荷された時に破壊(せん断)するよう構成されているのである。これによって、被締結部材は、必要且つ充分な締付トルクによって締結固定されることになる。  Since the connecting part 5 is the most important part for the nut member according to the present invention, it will be described in more detail with reference to FIG. As will be described in detail later, the connecting portion 5 is configured to break (shear) when a predetermined tightening torque is applied to the nut portion 2 when the member to be fastened is fastened in cooperation with the bolt member. It has been done. As a result, the fastened member is fastened and fixed by a necessary and sufficient tightening torque.

従って、連結部の剛性即ち破壊に対する応力設定が重要となるのであるが、呼び径12mmのナット部材の場合で種々テストした結果は、Hを1.5mmとし、Tを0.25mmとした時、450Kgfcm前後で破壊した。プレハブに於ける軽量鉄骨では、呼び径12mmのナット部材の場合、その締付トルクは450Kgfcm程度が良いとされており、略良好な結果を得た。勿論、ナット部材の種類や呼び径の大きさ、更には被締結部材の材質や使用条件等により、破壊に対する応力の設定条件が異なってくるので、前記テスト結果は、一定の条件下に於ける一例であることは云うまでもないことである。そこで、本発明によるナット部材に於いては、ナット部材の種類や呼び径の大きさ、更には被締結部材の材質や使用条件等必要最小限の要素を基に、最大公約数的にHとTを決定しておいて、対象となるナット部材や被締結部材の条件に近似するものを使用するのが得策である。換言すれば、最大公約数的にHとTを決定したナット部材を製作しておくことで、使用者側は、条件に合ったナット部材を選択使用することが可能となる。Accordingly, the rigidity of the connecting portion, that is, the stress setting for fracture is important. However, in the case of a nut member having a nominal diameter of 12 mm, the results of various tests showed that H 1 was 1.5 mm and T 1 was 0.25 mm. At that time, it was broken at around 450 kgfcm. In the case of a lightweight steel frame in a prefab, a nut member having a nominal diameter of 12 mm has a tightening torque of about 450 Kgfcm. Of course, since the setting conditions of stress against fracture differ depending on the type of nut member, the size of the nominal diameter, the material of the fastened member, the usage conditions, etc., the test results are obtained under certain conditions. Needless to say, this is an example. Therefore, in the nut member according to the present invention, the maximum common divisor H 1 is determined based on the minimum necessary elements such as the type of nut member, the size of the nominal diameter, and the material and operating conditions of the member to be fastened. and keep in determining the T 1, it is advisable to use the one that approximates the condition of the nut member and the fastening member in question. In other words, the user can select and use a nut member that meets the conditions by producing a nut member having the greatest common divisor determined H 1 and T 1 .

引き続き、図4に示した本発明による他の実施形態について説明する。本実施形態の特徴は、ネジ成形部の下側部分(図4に於いて下方)であって、溝部4の位置より幾分上方にかけて空洞部16を形成したことである。該空洞部16以外は、基本的に、既に説明した第一の実施形態であるナット部材1と同じであるので、同一部位に付いては、同じ符号を付してあるので、念のため付言しておくこととする。  Next, another embodiment according to the present invention shown in FIG. 4 will be described. The feature of this embodiment is that the hollow portion 16 is formed in the lower portion (downward in FIG. 4) of the screw forming portion and slightly above the position of the groove portion 4. Other than the hollow portion 16 is basically the same as the nut member 1 according to the first embodiment already described. Therefore, the same portions are denoted by the same reference numerals, so that additional notes are provided. I will keep it.

本発明による他の実施形態であるナット部材11は、一体的に形成されたナット部2とフランジ部3の境界部分或いは境界部分近傍に所定の深さを持った切込状の溝部4が形成されており、該溝部4と空洞部16との間に、連結部15を形成した構成となっている。そして連結部15が溝部4と空洞部16との間に形成されていることから、その肉厚Tの精度を格段に高めることが可能となるのである。In the nut member 11 according to another embodiment of the present invention, a notched groove portion 4 having a predetermined depth is formed in the boundary portion of the integrally formed nut portion 2 and flange portion 3 or in the vicinity of the boundary portion. The connecting portion 15 is formed between the groove portion 4 and the cavity portion 16. And since the connecting portion 15 is formed between the groove 4 and the cavity portion 16, it become possible to improve the accuracy of the thickness T 2 remarkably.

既に説明したように、連結部は、ボルト部材と協働して、被締結部材を締結する際、ナット部に所定の締付トルクが負荷された時に破壊(せん断)するようになっており、連結部の剛性即ち破壊に対する応力設定が非常に重要となる。この応力設定は、溝巾Hと肉厚Tとで決定されることから、成形に於いては最も注意を要する点である。本実施形態では、連結部15が溝部4と空洞部16という凹凸のない平坦状部分の間に形成されているため、肉厚Tの精度を確保することが容易になり、それに伴い応力設定が極めてし易くなり且つ精度を高めることが出来ることとなる。As already described, the coupling portion cooperates with the bolt member to break (shear) when a predetermined tightening torque is applied to the nut portion when fastening the fastened member. The rigidity of the connecting portion, that is, the stress setting for fracture is very important. Since this stress setting is determined by the groove width H 2 and the wall thickness T 2 , it is the most important point in molding. In the present embodiment, since the connecting portion 15 is formed between the flat section without irregularities that groove 4 and the cavity portion 16, it becomes easy to ensure the accuracy of thickness T 2, stresses set with it It becomes very easy to improve the accuracy.

次に、図5〜図9により、更に他の実施形態を説明する。ナット22は図7で理解出来るように、通常のナットの下側に筒状部24を一体的に形成したものとなっている。23は、下方向に湾曲させて多少バネ性を持たせたワッシャーであり、該ワッシャー23の開口部27は、前記筒状部24の外周に嵌合可能になっている。ナット22の筒状部24の外周に、開口部27を介して嵌合されたワッシャー23は、図6で示すように、筒状部24の端部をカシメることでナット22と一体化され、ナット部材21となるのである。26はカシメの状態を示したカシメ部である。  Next, still another embodiment will be described with reference to FIGS. As can be understood from FIG. 7, the nut 22 is formed by integrally forming a cylindrical portion 24 below the normal nut. Reference numeral 23 denotes a washer that is bent downward and has some springiness, and an opening 27 of the washer 23 can be fitted to the outer periphery of the cylindrical portion 24. The washer 23 fitted to the outer periphery of the cylindrical portion 24 of the nut 22 via the opening 27 is integrated with the nut 22 by crimping the end of the cylindrical portion 24 as shown in FIG. This is the nut member 21. Reference numeral 26 denotes a caulking portion showing a caulking state.

ここで、理解を容易にするために、既に説明したナット部材1及びナット部材11と本実施形態であるナット部材21と比較しておくことにする。尚、ナット部材11は、空洞部16を除いて基本的にはナット部材1と同じであるので、比較対象としてはナット部材1を取り上げる。ナット部材21に於けるナット22は、ナット部材1のナット部2に相当し、同様にワッシャー23はフランジ部3に相当し、フランジ部に相当するワッシャーとナット部材に相当するナットを別部品としたので、必要に応じてワッシャーを選択可能となり、ナット部材としての自由度が拡大する。そして連結部5に相当するのが筒状部24である。尚付言すれば、ワッシャー23は、必ずしもバネ性を持っていなくてはならないということではなく、必要に応じて板厚を大きく或いは小さくすることも可能であり、逆にフランジ部3の厚さ(標準的には呼び径12mmのフランジナットの場合は3mm)を変えることも又可能である。  Here, in order to facilitate understanding, the nut member 1 and the nut member 11 already described are compared with the nut member 21 according to the present embodiment. Since the nut member 11 is basically the same as the nut member 1 except for the hollow portion 16, the nut member 1 is taken up as a comparison target. The nut 22 in the nut member 21 corresponds to the nut portion 2 of the nut member 1. Similarly, the washer 23 corresponds to the flange portion 3. The washer corresponding to the flange portion and the nut corresponding to the nut member are separated from the separate parts. Therefore, a washer can be selected as necessary, and the degree of freedom as a nut member is expanded. The cylindrical portion 24 corresponds to the connecting portion 5. In addition, the washer 23 does not necessarily have to have a spring property, and the plate thickness can be increased or decreased as necessary, and conversely, the thickness of the flange portion 3 ( It is also possible to change the standard (3 mm for flange nuts with a nominal diameter of 12 mm).

筒状部24は、図7で理解出来るように、所定の肉厚でもって形成された壁部25を有している。該壁部25は、ワッシャー23をナット22と一体化させる時のカシメ代としての機能と共にナット部材1に於ける連結部5と同様の機能を持っている。前述したように連結部5は、本発明による重要な構成要素であり、ボルト部材と協働して、被締結部材を所定の締付トルクでもって締付固定するために、剛性即ち破壊に対する応力設定がなされており、これにより、設定応力以上の締付トルクがナット部2に負荷された場合に破壊即ちせん断するようになっている。同じように、壁部25の肉厚Tは、応力設定がなされた厚さとなっていて、ボルト部材と協働して、被締結部材を締付固定した時、所定の締付トルクで破壊するようになっているのである。勿論連結部5と壁部25とでは、構造が異なるので、応力設定を行なう場合の条件も異なってくるのは当然のことである。従って、連結部5の肉厚Tと壁部25の肉厚Tを同一に考えることは出来ない。即ち、よび径が同じ12mmであっても連結部5の肉厚Tと壁部25の肉厚Tは、多少差異があり、全く同一であるとは云えないということである。尚、念のため付言しておくが、よび径12mmのナット部材に於いては、連結部5の肉厚Tと連結部15の肉厚Tそして壁部25の肉厚Tは、概ね0.25mm〜0.5mmが妥当である。As can be understood from FIG. 7, the tubular portion 24 has a wall portion 25 formed with a predetermined thickness. The wall portion 25 has a function similar to that of the connecting portion 5 in the nut member 1 as well as a function of caulking when the washer 23 is integrated with the nut 22. As described above, the connecting portion 5 is an important component according to the present invention, and in order to fasten and fix the member to be fastened with a predetermined tightening torque in cooperation with the bolt member, rigidity, that is, stress against fracture. Thus, when the nut portion 2 is loaded with a tightening torque equal to or higher than the set stress, the nut portion 2 is broken or sheared. Similarly, the thickness T 3 of the wall portion 25 have a thickness that stress setting is made, in cooperation with the bolt member, when fastened to the fastened component, destroyed torque predetermined fastening It is supposed to do. Of course, since the structures of the connecting portion 5 and the wall portion 25 are different, it is natural that the conditions for setting the stress are different. Therefore, the thickness T 1 of the connecting portion 5 and the thickness T 3 of the wall portion 25 cannot be considered the same. That is, even if the diameter is the same 12 mm, the wall thickness T 1 of the connecting portion 5 and the wall thickness T 3 of the wall portion 25 are slightly different and cannot be said to be exactly the same. Although keep added that a precaution, is at the nut member of preliminary diameter 12 mm, thickness T 3 of the wall thickness T 2 and the wall portion 25 of the thickness T 1 and the connecting portion 15 of the connecting portion 5, Generally, 0.25 mm to 0.5 mm is appropriate.

ナット部材21は、前述のように、ナット部とワッシャー(フランジ部に相当)を別部品とし、それを一体化する構成を取っており、実施形態では、一体化をカシメによって行うとしているが、カシメにとらわれることはなく、他の方法であっても同等の効果を得ることが出来る。例えば、カシメ部26を単に折曲部とし、この折曲部とワッシャーを溶接する方法である。更に、ナット部材21に於ける筒状部24を設けず、ナット22の下面とワッシャー23の上面をプロジェクション溶接等で固着して一体化する方法である。  As described above, the nut member 21 has a configuration in which the nut portion and the washer (corresponding to the flange portion) are separate parts and integrated. In the embodiment, the integration is performed by caulking. It is not caught by caulking, and the same effect can be obtained even by other methods. For example, the crimped portion 26 is simply a bent portion, and the bent portion and a washer are welded. Further, the cylindrical member 24 in the nut member 21 is not provided, and the lower surface of the nut 22 and the upper surface of the washer 23 are fixed and integrated by projection welding or the like.

引き続き、本発明によるナット部材の使用状態を示した簡略図である図10と図11を参照しながら、その使用方法を説明することにする。7はプレハブに使用される軽量鉄骨等の被締結部材であり、該被締結部材の図示しない取付け孔にはボルト部材6が嵌挿されていて、ボルト部材6にはナット部材1が螺合され、フランジ部3の下面が被締結部材の上面に当接した状態となっている。(図10参照)この状態から、更に締付力Fでもって締め付けていくと、連結部の設定応力より大きなトルクがかかった時点で連結部が破壊(せん断)し、それに伴い溝部4の上側がフランジ部3側の上面を圧接した状態で締め込まれる。即ち、この時点でナット部材1のナット部とフランジ部は分離され、ナット部がフランジ部を所定の締付トルクで圧接することになり、これによって被締結部材が適正な締付トルクでもって取付け固定され、締付作業が完了するのである。  Next, a method of using the nut member according to the present invention will be described with reference to FIGS. 10 and 11 which are simplified diagrams showing the use state of the nut member. 7 is a member to be fastened such as a lightweight steel frame used for the prefab. A bolt member 6 is inserted into a mounting hole (not shown) of the member to be fastened, and the nut member 1 is screwed into the bolt member 6. The lower surface of the flange portion 3 is in contact with the upper surface of the member to be fastened. (Refer to FIG. 10) If the tightening force F is further tightened from this state, the connecting portion is broken (sheared) when a torque larger than the set stress of the connecting portion is applied, and accordingly, the upper side of the groove portion 4 is It tightens in the state which pressed the upper surface of the flange part 3 side. That is, at this time, the nut portion and the flange portion of the nut member 1 are separated, and the nut portion presses the flange portion with a predetermined tightening torque, whereby the member to be fastened is attached with an appropriate tightening torque. It is fixed and the tightening work is completed.

尚、本発明によるナット部材について、プレハブ等の軽量鉄骨組立を取り上げて説明したが、これに限定されるものではなく、他のものにも応用可能であるので、念のため付言しておくことにする。  The nut member according to the present invention has been described by taking a lightweight steel frame assembly such as a prefab. However, the present invention is not limited to this and can be applied to other things. To.

本発明によるナット部材の一実施形態を示す平面図である。It is a top view which shows one Embodiment of the nut member by this invention. 部分的な断面を含む図1のP矢視図である。It is a P arrow view of FIG. 1 containing a partial cross section. 図2のX部拡大詳細図である。FIG. 3 is an enlarged detail view of a portion X in FIG. 2. 本発明によるナット部材の他の実施形態を示し、図2のX部に相当する拡大詳細図である。FIG. 4 is an enlarged detail view showing a nut member according to another embodiment of the present invention and corresponding to a portion X in FIG. 2. 本発明によるナット部材の更に他の実施形態を示す平面図である。It is a top view which shows other embodiment of the nut member by this invention. 部分的な断面を含む図5のQ矢視図である。It is Q arrow line view of FIG. 5 containing a partial cross section. 本発明によるナット部材の更に他の実施形態に於けるナットの部分的な断面を含む側面図である。FIG. 6 is a side view including a partial cross section of a nut in still another embodiment of a nut member according to the present invention. 本発明によるナット部材の更に他の実施形態に於けるワッシャーの平面図である。It is a top view of the washer in other embodiments of the nut member by the present invention. 図8のA−A断面図である。It is AA sectional drawing of FIG. 本発明によるナット部材の使用状態を示す簡略説明図である。It is a simplified explanatory drawing which shows the use condition of the nut member by this invention. 図10のR矢視図である。It is R arrow line view of FIG.

符号の説明Explanation of symbols

1、11、21 ナット部材 24 筒状部
2 ナット部 25 壁部
3 フランジ部 26 カシメ部
4 溝部 27 開口部
5,15 連結部 T、T、T 肉厚
6 ボルト部材 H、H 溝巾
7 被締結部材 F 締付力
16 開口部
22 ナット
23 ワッシャー
1, 11, 21 nut member 24 the cylindrical portion 2 a nut portion 25 wall portion 3 the flange portion 26 caulking portion 4 groove 27 opening 5 and 15 connecting portion T 1, T 2, T 3 thick 6 bolt member H 1, H 2 groove width 7 Fastened member F Tightening force 16 Opening 22 Nut 23 Washer

Claims (3)

ナット部と該ナット部の外形より径を大きくしたフランジ部を一体的に有したナットであって、前記ナット部と前記フランジ部の境界部分に、フランジ部下面に略平行状に所定の深さを持った溝部を形成して、該溝部とネジ形成部の間に連結部を形成し、ボルト部材と協働して被締結部材を締め付けた時、所定の締付トルクでもって、前記連結部が破壊するようにしたことを特徴とするナット部材。  A nut integrally having a nut portion and a flange portion whose diameter is larger than the outer shape of the nut portion, and having a predetermined depth substantially parallel to the lower surface of the flange portion at a boundary portion between the nut portion and the flange portion A connecting portion is formed between the groove portion and the screw forming portion, and when the fastened member is tightened in cooperation with the bolt member, the connecting portion has a predetermined tightening torque. A nut member characterized in that is destroyed. ネジ成形部の下側部分であって、溝部の位置より幾分上方にかけて空洞部を形成し、該空洞部と前記溝部との間に連結部を形成したことを特徴とする請求項1記載のナット部材。  The lower portion of the screw forming portion, a cavity portion is formed slightly above the position of the groove portion, and a connecting portion is formed between the cavity portion and the groove portion. Nut member. 下側に筒状部を一体的に形成したナットの前記筒状部にワッシャーを嵌合し、前記筒状部の端部をカシメることでワッシャーとナットを一体化し、ボルト部材と協働して被締結部材を締め付けた時、所定の締付トルクでもって、前記筒状部が破壊するようにしたことを特徴とするナット部材。  A washer is fitted into the cylindrical part of the nut formed integrally with the cylindrical part on the lower side, and the washer and nut are integrated by crimping the end of the cylindrical part, and cooperates with the bolt member. A nut member characterized in that when the member to be fastened is tightened, the cylindrical portion is destroyed with a predetermined tightening torque.
JP2008162534A 2008-05-27 2008-05-27 Nut member Withdrawn JP2009287766A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102606605A (en) * 2012-04-01 2012-07-25 常熟新华远紧固件有限公司 Nut with elastic gasket
JP2012229556A (en) * 2011-04-26 2012-11-22 Otis:Kk Rain gutter hoisting attachment
US8974164B2 (en) 2012-06-26 2015-03-10 Newfrey Llc Plastic high heat fastener
JP2016202064A (en) * 2015-04-21 2016-12-08 小橋工業株式会社 Agricultural implement
JP2017198032A (en) * 2016-04-28 2017-11-02 住友ゴム工業株式会社 Building and vibration control device
JP2021021281A (en) * 2019-07-30 2021-02-18 株式会社ケー・エフ・シー Hole-in anchor and its construction method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012229556A (en) * 2011-04-26 2012-11-22 Otis:Kk Rain gutter hoisting attachment
CN102606605A (en) * 2012-04-01 2012-07-25 常熟新华远紧固件有限公司 Nut with elastic gasket
US8974164B2 (en) 2012-06-26 2015-03-10 Newfrey Llc Plastic high heat fastener
JP2016202064A (en) * 2015-04-21 2016-12-08 小橋工業株式会社 Agricultural implement
JP2017198032A (en) * 2016-04-28 2017-11-02 住友ゴム工業株式会社 Building and vibration control device
JP2021021281A (en) * 2019-07-30 2021-02-18 株式会社ケー・エフ・シー Hole-in anchor and its construction method

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