JP2005265171A - Locking nut - Google Patents

Locking nut Download PDF

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Publication number
JP2005265171A
JP2005265171A JP2004117346A JP2004117346A JP2005265171A JP 2005265171 A JP2005265171 A JP 2005265171A JP 2004117346 A JP2004117346 A JP 2004117346A JP 2004117346 A JP2004117346 A JP 2004117346A JP 2005265171 A JP2005265171 A JP 2005265171A
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Japan
Prior art keywords
nut
hexagon nut
instrument
bolt
effect
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Pending
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JP2004117346A
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Japanese (ja)
Inventor
Shigeki Odera
重樹 大寺
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Individual
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Priority to JP2004117346A priority Critical patent/JP2005265171A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a device capable of restraining rotation by mechanically fixing a hexagon nut, and visually observing the locking effect. <P>SOLUTION: The device for irrotational effect by applying a pawl at a groove cut at a bolt and a device for covering the hexagon nut in a hat condition and rotating integrally with the nut are jointed and fixed by a projection in a gear condition to prevent loosing of the hexagon nut. This device features fixing the rotation of the hexagon nut, and the effect of the loosing prevention can be measured only by observing attachment of this device. Therefore, the visual inspection from a distance becomes possible if the device is colored. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

この発明は、締め付けた六角ナットのゆるみを防止するとともに、ゆるみ防止の効果が目視により観測できる器具に関するものである。  The present invention relates to an instrument that can prevent loosening of a tightened hexagon nut and can visually observe the effect of preventing loosening.

ボルトナットによる構造材の締め付けは既に大きな汎用性があるが、構造本体に振動が生じる場合等においては、時間の経過とともにナットにゆるみが生じる性格を有していた。このため、ゆるみ防止を目的としたナットやネジ山等の改良が行われてきたが、ナットの締め付け力の維持やゆるみを防止する器材の取り付け作業に手間が掛かるなど、改善の余地が残される分野であった。  Tightening the structural material with bolts and nuts already has a great versatility, but when the structural body vibrates, etc., the nut has a tendency to loosen over time. For this reason, improvements have been made to nuts and threads for the purpose of preventing loosening, but there is still room for improvement, such as maintaining the tightening force of the nut and attaching the equipment to prevent loosening. It was a field.

この発明は、締め付けた六角ナットを器械的に固定することで回転を抑制し、ゆるみ防止の効果を目視により観測することのできる器具を開発するものである。  This invention develops the instrument which suppresses rotation by fixing the tightened hexagon nut mechanically, and can observe the effect of prevention of loosening visually.

ボルト軸に削穿された溝に爪をかけて回転を抑制した器具と六角ナットを帽子状に覆ってナットと一体に回転する器具とを接合して固定することで、ボルト軸の溝と六角ナットの外角を作用点として六角ナットのゆるみを防止する手段とした。  The bolt shaft groove and hex The outer corner of the nut is used as a means of action to prevent the hexagon nut from loosening.

この発明は、従来の行程と同じように六角ナットを締め付けた後に、ゆるみを防止するための器具を装着するものである。さらに、この発明は六角ナットを器械的に固定する特徴を有するので、この器具の装着の有無を観測するだけでゆるみ防止の効果を確認することができる。  In the present invention, an instrument for preventing loosening is attached after a hexagon nut is tightened in the same manner as in the conventional process. Further, since the present invention has a feature of fixing the hexagonal nut mechanically, it is possible to confirm the effect of preventing loosening only by observing whether or not the instrument is mounted.

ボルト(1)は〔図1〕及び〔図2〕に示すとおり、ネジ切り部分に2本の軸方向に向かう溝(2)を削穿したものである。(2)は〔図5〕に示す連結器具(5)の内側に突出した爪(6)が(2)に沿って滑動するためのガイドの役割を果たす。  As shown in FIG. 1 and FIG. 2, the bolt (1) is formed by drilling two axial grooves (2) in the threaded portion. (2) serves as a guide for the claw (6) projecting inside the connecting device (5) shown in FIG. 5 to slide along (2).

ゆるみ防止器具は、〔図5〕から〔図7〕、並びに〔図8〕から〔図10〕、さらに〔図11〕に示すとおり、二つに区分されて、連結器具(5)と六角ナット(3)を帽子状に覆う器具(9)から構成される。  As shown in [FIG. 5] to [FIG. 7], [FIG. 8] to [FIG. 10], and [FIG. 11], the loosening prevention device is divided into two parts, a connecting device (5) and a hex nut. It is comprised from the instrument (9) which covers (3) in a hat shape.

器具(5)はボルト(1)に挿入して滑動する仕組みの円筒管であり、その内側には溝(2)をガイドとして動く2個の突出した爪(6)を有する。また、(5)の外側部のうち器具(9)と接合する部分にはこまめな角度の変化で接合を可能とする歯車状の突起(7)を有する。(5)の一方の端部は(9)と接合した時に抜け落ちないための張り出し部(8)を有する。  The instrument (5) is a cylindrical tube that is inserted into the bolt (1) and slides, and has two protruding claws (6) that move using the groove (2) as a guide. Further, the outer part of (5) has a gear-like projection (7) that can be joined by changing the angle frequently in the part to be joined with the instrument (9). One end of (5) has an overhanging portion (8) for preventing falling off when joined to (9).

器具(9)はボルト(1)に挿入した後に、器具(5)を収納し、さらに六角ナット(3)を帽子状に覆う形状の器具である。(9)の先行側の側面は(3)を収納するための六角形の開口部を有する。また、反対の側面は器具(5)と接合するために(7)の形状に見合う歯車状の開口部を有する。  The instrument (9) is an instrument having a shape that, after being inserted into the bolt (1), accommodates the instrument (5) and further covers the hexagon nut (3) like a hat. The side surface on the leading side of (9) has a hexagonal opening for accommodating (3). Further, the opposite side surface has a gear-shaped opening corresponding to the shape of (7) for joining with the instrument (5).

〔図3〕及び〔図4〕に示す六角ナット(3)と〔図8〕から〔図10〕に示す器具(9)は、それぞれが接合する任意の側面位置に抜け落ち防止のための凹部のえくぼ(4)と凸部の差込(10)を有する。また、(9)は先行側の先端に取り外しの際の作用点となる切り欠き部(11)を有する。  The hexagon nut (3) shown in [FIG. 3] and [FIG. 4] and the tool (9) shown in [FIG. 8] to [FIG. It has a dimple (4) and a protrusion insertion (10). Further, (9) has a notch (11) which is an action point at the time of removal at the leading end on the leading side.

この器具の装着の仕様について説明する。まず、従来と同じ行程により六角ナット(3)を装着して、締め付け力を確認する。次いで、器具(5)をボルト(1)に通し、溝(2)をガイドとして(3)に接する位置まで挿入する。続いて、器具(9)を(1)に通し、(9)が(3)を覆うように挿入する。装着の状態を確認した後に、(3)と(9)とが完全に接合するように、ハンマー等を用いて固定のための打撃を加える。  The specifications for mounting this instrument will be described. First, the hexagon nut (3) is attached by the same process as the conventional one, and the tightening force is confirmed. Next, the instrument (5) is passed through the bolt (1), and the groove (2) is inserted as a guide to a position in contact with (3). Subsequently, the instrument (9) is passed through (1) and (9) is inserted so as to cover (3). After confirming the state of mounting, a hammer for fixing is applied using a hammer or the like so that (3) and (9) are completely joined.

ナットはその締め付け力に多少の誤差が許容される場合もある。仮に、許容される誤差の範囲がボルトのネジ山ピッチの6分の1以上、つまり、六角ナットの角に合わせて固定することが可能である場合は、〔図12〕に示すとおり歯車状の接合部分を省略して、連結器具(5)と六角ナットを帽子状に覆う器具(9)とが一体構造になる装着器具とすることができる。この場合、ボルト(1)における溝(2)の溝幅は〔図13〕に示すように、許容される誤差の範囲まで拡大させる形状となる。  Some errors may be allowed in the tightening force of the nut. If the allowable error range is 1/6 or more of the screw thread pitch of the bolt, that is, it can be fixed to the corner of the hexagon nut, By omitting the joint portion, the connecting device (5) and the device (9) for covering the hexagon nut in a hat shape can be an integrated device. In this case, the groove width of the groove (2) in the bolt (1) has a shape that is expanded to an allowable error range, as shown in FIG.

この発明は、ボルトとナットの2点を器械的に固定するところに特徴があり、この発明の器具が破壊されない限り、ナットがゆるむ状態は発生しない。この器具の装着状態を観測するだけで、ゆるみ防止の効果が確認できるのである。したがって、あらかじめナットに着色をしておけば、その着脱を遠距離から観測する仕掛けとして、その有効な活用を見込むことができる。例えば、高圧鉄塔のように高所で危険な位置であっても、ナットのゆるみを地上から点検することを可能にするものである。  The present invention is characterized in that two points of a bolt and a nut are mechanically fixed, and unless the instrument of the present invention is broken, a state where the nut is not loosened does not occur. By simply observing the wearing state of this instrument, the effect of preventing loosening can be confirmed. Therefore, if the nut is colored in advance, its effective use can be expected as a device for observing its attachment / detachment from a long distance. For example, it is possible to check the looseness of a nut from the ground even in a dangerous place at a high place such as a high-pressure tower.

構造材に外力が加わると、ナットにゆるみが生じる例は多い。この考案は、ボルトナットを使用する全ての機資材に共通する課題に対応するものであり、鉄鋼製品製造の分野に技術を提供するものである。  When an external force is applied to the structural material, there are many examples in which the nut is loosened. This device addresses issues common to all machine materials that use bolts and nuts, and provides technology in the field of steel product manufacturing.

〔図1〕ボルト(1)の側面図
〔図2〕ボルト(1)の軸直角方向断面図
〔図3〕ナット(3)の正面図
〔図4〕ナット(3)の側面図
〔図5〕連結器具(5)の正面図
〔図6〕連結器具(5)の側面図
〔図7〕連結器具(5)の斜視図
〔図8〕六角ナットを帽子状に覆う器具(9)の正面図
〔図9〕六角ナットを帽子状に覆う器具(9)の側面図
〔図10〕六角ナットを帽子状に覆う器具(9)の斜視図
〔図11〕この考案を装着状態にした断面図
〔図12〕取り付け器具(13)の斜視図
〔図13〕締付力の誤差が許容される場合のボルト(1)の軸直角方向断面図
[Fig. 1] Side view of bolt (1) [Fig. 2] Cross-sectional view perpendicular to the axis of bolt (1) [Fig. 3] Front view of nut (3) [Fig. 4] Side view of nut (3) [Fig. ] Front view of connecting device (5) [FIG. 6] Side view of connecting device (5) [FIG. 7] Perspective view of connecting device (5) [FIG. 8] Front view of device (9) covering hexagon nut in hat shape [Fig. 9] Side view of the instrument (9) covering the hex nut in a hat shape [Fig. 10] Perspective view of the instrument (9) covering the hex nut in a hat shape [Fig. 11] [FIG. 12] Perspective view of the mounting tool (13) [FIG. 13] A cross-sectional view in the direction perpendicular to the axis of the bolt (1) when an error in the tightening force is allowed

符号の説明Explanation of symbols

1:ボルト
2:溝
3:六角ナット
4:凹部のえくぼ
5:連結器具
6:内側に突出した爪
7:歯車状の突起
8:(5)が抜け落ちないための張り出し部
9:六角ナットを帽子状に覆う器具
10:凸部の差込
11:取り外しの用に供する切り欠き部
1: Bolt 2: Groove 3: Hexagonal nut 4: Dimple of recess 5: Connecting tool 6: Claw protruding inward 7: Gear-shaped protrusion 8: Overhanging part for preventing (5) from falling out 9: Hexagon nut with cap Device 10 covered in a shape: insertion of convex part 11: notch for use for removal

Claims (1)

ボルト軸部に削穿された溝と六角ナットの外角を作用点として、ナットを固定するゆるみ防止ナット  A loosening prevention nut that fixes the nut using the groove cut in the bolt shaft and the outer angle of the hex nut as the operating point
JP2004117346A 2004-03-15 2004-03-15 Locking nut Pending JP2005265171A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004117346A JP2005265171A (en) 2004-03-15 2004-03-15 Locking nut

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004117346A JP2005265171A (en) 2004-03-15 2004-03-15 Locking nut

Publications (1)

Publication Number Publication Date
JP2005265171A true JP2005265171A (en) 2005-09-29

Family

ID=35089935

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004117346A Pending JP2005265171A (en) 2004-03-15 2004-03-15 Locking nut

Country Status (1)

Country Link
JP (1) JP2005265171A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013124753A (en) * 2011-12-16 2013-06-24 Ud Trucks Corp Nut locking structure
JP5236128B1 (en) * 2013-01-23 2013-07-17 学 佐藤 Fastener

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013124753A (en) * 2011-12-16 2013-06-24 Ud Trucks Corp Nut locking structure
JP5236128B1 (en) * 2013-01-23 2013-07-17 学 佐藤 Fastener

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