JP3183490U - Nut with washer - Google Patents

Nut with washer Download PDF

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JP3183490U
JP3183490U JP2013001434U JP2013001434U JP3183490U JP 3183490 U JP3183490 U JP 3183490U JP 2013001434 U JP2013001434 U JP 2013001434U JP 2013001434 U JP2013001434 U JP 2013001434U JP 3183490 U JP3183490 U JP 3183490U
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nut
washer
ring
hole
protruding piece
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博道 草深
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株式会社サカムラハイテックス
日本ファスナー工業株式会社
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Abstract

【課題】ナットと座金との当接位置を常に所定位置で接触するようにして、トルク係数のバラツキを抑え、安定した軸力が得られる座金付ナットの提供。
【解決手段】座金２の孔部２ａに段部２ｂを形成すると共に、ナット１の座面のねじ孔１ａ周りに円筒状の突片１ｂを突設し、このナット１の円筒状突片１ｂを座金２の段付孔部２ａに差し込み、その先端部を半径方向にかしめることにより、座金２をナット１に回転自在に係着した座金付ナットであって、ナット１の底面に、底面から視てリング状でそのリングの外径と内径の中間径部分が頂部Ａとなるように下方に向かって断面半円状に膨出するリング状座面１ｃを形成した。
【選択図】図１Provided is a nut with a washer in which a contact position between a nut and a washer is always brought into contact at a predetermined position to suppress variation in torque coefficient and obtain a stable axial force.
A step 2b is formed in a hole 2a of a washer 2, and a cylindrical protruding piece 1b is provided around a screw hole 1a on a seating surface of a nut 1. A cylindrical protruding piece 1b of the nut 1 is provided. Is a nut with a washer in which the washer 2 is rotatably engaged with the nut 1 by caulking the tip of the washer 2 into the stepped hole 2a of the washer 2 in the radial direction. The ring-shaped seating surface 1c is formed in a ring shape as viewed from above, and bulges downward in a semicircular cross section so that the intermediate diameter portion between the outer diameter and the inner diameter of the ring becomes the apex A.
[Selection] Figure 1

Description

本考案は、主としてビルの鉄骨や橋梁に使用される高力ボルト用の座金付ナットに関する。  The present invention relates to a nut with a washer for a high-strength bolt mainly used for a steel frame or bridge of a building.

一般に、ナットのボルトへの螺着作業の合理化を図るため、図６に示す構造の座付きナットが提案され、使用されている。この座付ナットの場合、座金２´の孔部２ａ´に段部２ｂ´を形成すると共に、ナット１´の座面のねじ孔１ａ´周りに円筒状の突片１ｂ´を突設し´、このナット１´の円筒状突片１ｂ´を座金２´の孔部２ａ´に差し込み、その先端部を孔部２ａ´の段部２ｂ´下方にて半径方向外方にかしめることにより、座金２´をナット１´に回転自在に係着している。  In general, a seated nut having the structure shown in FIG. 6 has been proposed and used in order to rationalize the screwing operation of the nut onto the bolt. In the case of this nut with a seat, a step 2b ′ is formed in the hole 2a ′ of the washer 2 ′, and a cylindrical protrusion 1b ′ is provided around the screw hole 1a ′ on the seat surface of the nut 1 ′. By inserting the cylindrical protrusion 1b ′ of the nut 1 ′ into the hole 2a ′ of the washer 2 ′ and caulking the tip end thereof radially outward under the step 2b ′ of the hole 2a ′, A washer 2 'is rotatably attached to the nut 1'.

ところで、上記したナット１´のボルトへの螺着作業を行う場合、ナット１´の座面はボルトの軸心に対し正確に垂直状態が保たれるといったことはなく、ナット１´の座面が多少傾斜しながらねじ込まれる。そのため、図６に示す構造の座付きナットのように底面全体が扁平座面１ｃ´となった構造であると、ナット１´の座金２´への当接時、ナット１´の扁平座面１ｃ´全体が座金２´の上面に均一に面接触するとは限らず、その時々で多様に傾斜しながら偏よった位置で点接触して螺着され、さまざまな位置で偏荷重が作用することになる。このようにナット１´と座金２´との点接触位置が、ナット１´の扁平座面１ｃ´の外周部分と内周部分の範囲内においてその都度変化すると、トルク係数にバラツキが生じることになり、その結果、安定した軸力が得られにくくなる問題があった。  By the way, when performing the above-described screwing operation of the nut 1 ′ to the bolt, the seat surface of the nut 1 ′ is not accurately kept perpendicular to the axis of the bolt. Is screwed in with a slight inclination. Therefore, when the entire bottom surface is a flat seat surface 1c ′, such as a seated nut having the structure shown in FIG. 6, the flat seat surface 1c of the nut 1 ′ is brought into contact with the washer 2 ′. 'The entire surface does not necessarily contact the upper surface of the washer 2' evenly, but is sometimes point-contacted and screwed at various positions while tilting variously, and uneven loads act at various positions. Become. Thus, when the point contact position between the nut 1 'and the washer 2' changes each time within the range of the outer peripheral portion and the inner peripheral portion of the flat seat surface 1c 'of the nut 1', the torque coefficient varies. As a result, there is a problem that it is difficult to obtain a stable axial force.

そこで、本考案は上記した問題に鑑み考案したもので、ナットと座金との当接位置を常に所定位置で接触するようにして、トルク係数のバラツキを抑え、バラツキのない安定した軸力が得られる座金付ナットの提供を課題とする。  Accordingly, the present invention has been devised in view of the above-described problems. By keeping the contact position between the nut and the washer at a predetermined position at all times, the variation in the torque coefficient can be suppressed and a stable axial force without variation can be obtained. It is an object to provide a nut with a washer.

上記した問題を解決するため、本考案は、座金の孔部に段部を形成すると共に、ナットの座面のねじ孔周りに円筒状の突片を突設し、このナットの円筒状突片を座金の段付孔部に差し込み、その先端部を半径方向にかしめることにより、座金をナットに回転自在に係着した座金付ナットであって、ナットの底面に、底面から視てリング状でそのリングの外径と内径の中間径部分が頂部となるように下方に向かって断面半円状に膨出するリング状座面を形成したことを特徴とする。  In order to solve the above-described problems, the present invention forms a step portion in the hole portion of the washer and projects a cylindrical protrusion around the screw hole of the seat surface of the nut. Is a nut with a washer in which the washer is rotatably engaged with the nut by caulking the tip of the washer into the stepped hole of the washer in the radial direction. The ring-shaped seating surface swelled downward in a semicircular shape is formed so that the intermediate diameter portion between the outer diameter and the inner diameter of the ring becomes the top.

本考案の座金付ナットによれば、上記したように座金付のナットにおける底面に、底面から視てリング状でそのリングの外径と内径の中間径部分が頂部となるように下方に向かって断面半円状に膨出するリング状座面を形成したから、ナットのボルトへの螺着時、ナットと座金との当接位置を常にナットの底面に形成したリング状座面の中間径部分の膨出頂部に定めることができ、これにより、トルク係数のバラツキを抑えることができ、その結果、バラツキのない安定した軸力を得ることができる。  According to the washer-provided nut of the present invention, as described above, the bottom surface of the nut with a washer is formed in a ring shape when viewed from the bottom surface so that the intermediate diameter portion of the outer diameter and inner diameter of the ring is the top. Since the ring-shaped seating surface swelled in a semicircular cross section is formed, the intermediate diameter part of the ring-shaped seating surface where the contact position between the nut and the washer is always formed on the bottom surface of the nut when the nut is screwed onto the bolt Thus, the torque coefficient variation can be suppressed, and as a result, a stable axial force without variation can be obtained.

本考案に係る座金付ナットの縦断面図である。It is a longitudinal cross-sectional view of the nut with a washer according to the present invention. 同ナットの一部切欠縦断面図である。It is a partially cutaway longitudinal cross-sectional view of the nut. 同ナットの底面図である。It is a bottom view of the nut. 同座金の縦断面図である。It is a longitudinal cross-sectional view of the same washer. 同座金の平面図である。It is a top view of the washer. 従来の説明図である。It is conventional explanatory drawing.

以下本考案に係る座金付ナットの実施の形態を図に基づいて説明する。  Hereinafter, embodiments of a nut with a washer according to the present invention will be described with reference to the drawings.

図は高力ボルト用の座金付ナットを示し、図において、１はナットで、このナット１の底面側のねじ孔１ａ周りに薄肉の円筒状突片１ｂが形成されている。そして、ナット１の底面には、底面から視てリング状でそのリングの外径と内径の中間径部分が頂部Ａとなるように下方に向かって断面半円状に膨出するリング状座面１ｃが形成されている。  The figure shows a nut with a washer for a high-strength bolt. In the figure, reference numeral 1 denotes a nut, and a thin cylindrical protrusion 1b is formed around a screw hole 1a on the bottom surface side of the nut 1. The bottom surface of the nut 1 is a ring-shaped seating surface that is ring-shaped as viewed from the bottom surface and bulges downward in a semicircular cross section so that an intermediate diameter portion between the outer diameter and inner diameter of the ring becomes a top portion A. 1c is formed.

また、２は環状の座金で、この座金２の孔部２ａにかしめ用の段部２ｂが形成されている。  Reference numeral 2 denotes an annular washer, and a caulking step 2b is formed in a hole 2a of the washer 2.

そして、上記のように形成されたナット１に座金２を組み付けるには、ナット１の円筒状突片１ｂを座金２の段付孔部２ａに差し込み、その差込状態のもとでプレス等により円筒状突片１ｂの先端部を半径方向、つまり段部２ｂの下面にかしめることにより、座金２をナット１に回転自在に係着する。  In order to assemble the washer 2 to the nut 1 formed as described above, the cylindrical protruding piece 1b of the nut 1 is inserted into the stepped hole portion 2a of the washer 2 and is pressed or the like under the inserted state. The washer 2 is rotatably engaged with the nut 1 by caulking the tip of the cylindrical protrusion 1b in the radial direction, that is, the lower surface of the step 2b.

次に、以上のように構成した座金付ナットの作用について説明する。  Next, the operation of the nut with washer configured as described above will be described.

本考案の座金付ナットによれば、上記したようにナット１における底面に、底面から視てリング状でそのリングの外径と内径の中間径部分が頂部Ａとなるように下方に向かって断面半円状に膨出するリング状座面１ｃを形成したから、ナット１のボルト（図示せず）への螺着時、ナット１と座金２との当接位置を常にナット１の底面に形成したリング状座面１ｃの中間径部分の膨出頂部Ａに定めることができる。これにより、従来の座金付ナットに比べてトルク係数のバラツキを抑えることができ、その結果、バラツキのない安定した軸力を得ることができる。  According to the washer-provided nut of the present invention, as described above, the bottom surface of the nut 1 has a ring shape when viewed from the bottom surface, and the cross section is downward so that the intermediate diameter portion of the outer diameter and inner diameter of the ring becomes the top A Since the semicircular ring-shaped seat surface 1c is formed, the contact position between the nut 1 and the washer 2 is always formed on the bottom surface of the nut 1 when the nut 1 is screwed to a bolt (not shown). The ring-shaped seating surface 1c can be defined at the bulging top portion A of the intermediate diameter portion. Thereby, it is possible to suppress the variation in the torque coefficient as compared with the conventional nut with a washer, and as a result, it is possible to obtain a stable axial force without the variation.

その上、ナット１と座金２が一体化されているので、ナット１と座金２とが個別のものに比べて表裏の見極めが不要で、ボルトに挿入する方向が一目で分かるし、暗がりであっても手の感触で一瞬にして確認できるため、煩わしさやロスが発生しない。また、ナット１と座金２とが一体化されているので、片手で操作が容易になり作業性が良くなる。さらに、一体化された座金２がガイドとなるため、ねじとねじの噛み合わせの不都合が解消され、落下させるといったこともなくなる。  In addition, since the nut 1 and the washer 2 are integrated, the nut 1 and the washer 2 need not be discriminated from each other compared to the individual ones, and the direction of insertion into the bolt can be seen at a glance, and it was dark. However, since it can be confirmed instantly with the touch of the hand, there is no inconvenience or loss. Further, since the nut 1 and the washer 2 are integrated, the operation is facilitated with one hand and the workability is improved. Furthermore, since the integrated washer 2 serves as a guide, the inconvenience of screw-to-screw engagement is eliminated, and there is no possibility of dropping.

以上の実施の形態では、高力ボルト用の座金付ナットに適用した場合について説明したけれども、高力ボルト用の座金付ナットに何ら限定されるものでなく、一般的な座金付ナットについても広く適用できること勿論である。  Although the case where it applied to the nut with a washer for high-strength bolts was explained in the above embodiment, it is not limited to the nut with a washer for high-strength bolts. Of course, it can be applied.

１ ナット
１ａ ねじ孔
１ｂ 円筒状突片
１ｃ リング状座面
２ 座金
２ａ 孔部
２ｂ 段部
Ａ 頂部DESCRIPTION OF SYMBOLS 1 Nut 1a Screw hole 1b Cylindrical protrusion 1c Ring-shaped seat surface 2 Washer 2a Hole 2b Step part A Top part

Claims (1)

座金の孔部に段部を形成すると共に、ナットの座面のねじ孔周りに円筒状の突片を突設し、このナットの円筒状突片を座金の段付孔部に差し込み、その先端部を半径方向にかしめることにより、座金をナットに回転自在に係着した座金付ナットであって、ナットの底面に、底面から視てリング状でそのリングの外径と内径の中間径部分が頂部となるように下方に向かって断面半円状に膨出するリング状座面を形成したことを特徴とする座金付ナット。  A step is formed in the hole of the washer, and a cylindrical protruding piece is provided around the screw hole of the seat surface of the nut. The cylindrical protruding piece of the nut is inserted into the stepped hole of the washer, and its tip This is a nut with a washer that is rotatably attached to the nut by caulking the portion in the radial direction, and is a ring-like shape on the bottom surface of the nut as viewed from the bottom surface. A nut with a washer, characterized in that a ring-shaped seating surface that bulges in a semicircular cross section toward the bottom is formed so that becomes a top.
JP2013001434U 2013-02-27 2013-02-27 Nut with washer Expired - Fee Related JP3183490U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106271517A (en) * 2016-09-28 2017-01-04 泉州鹏宜机械有限公司 The assemble method of a kind of nut and the equipment of assembling
CN106715930A (en) * 2014-09-18 2017-05-24 马克西昂轮毂德国控股公司 Nut, in particular wheel or axle nut, washer, control device for wheel or axle nuts in vehicles and vehicle provided therewith
CN110397663A (en) * 2019-08-09 2019-11-01 嘉兴凯顺科技有限公司 A kind of hexagonal automobile fitting check bolt

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106715930A (en) * 2014-09-18 2017-05-24 马克西昂轮毂德国控股公司 Nut, in particular wheel or axle nut, washer, control device for wheel or axle nuts in vehicles and vehicle provided therewith
JP2017529499A (en) * 2014-09-18 2017-10-05 マキシオン ホイールズ ジャーマニー ホールディングス ゲーエムベーハー Nut (especially wheel nut or axle nut), washer, control device for vehicle wheel nut or axle nut, and vehicle provided with the same
CN106271517A (en) * 2016-09-28 2017-01-04 泉州鹏宜机械有限公司 The assemble method of a kind of nut and the equipment of assembling
CN110397663A (en) * 2019-08-09 2019-11-01 嘉兴凯顺科技有限公司 A kind of hexagonal automobile fitting check bolt

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