JP2012172780A - Locking device for fastener - Google Patents

Locking device for fastener Download PDF

Info

Publication number
JP2012172780A
JP2012172780A JP2011036222A JP2011036222A JP2012172780A JP 2012172780 A JP2012172780 A JP 2012172780A JP 2011036222 A JP2011036222 A JP 2011036222A JP 2011036222 A JP2011036222 A JP 2011036222A JP 2012172780 A JP2012172780 A JP 2012172780A
Authority
JP
Japan
Prior art keywords
taper
bolt
main body
screw
body 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
Application number
JP2011036222A
Other languages
Japanese (ja)
Inventor
Takashi Fukuda
孝 福田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP2011036222A priority Critical patent/JP2012172780A/en
Publication of JP2012172780A publication Critical patent/JP2012172780A/en
Pending legal-status Critical Current

Links

Images

Landscapes

  • Connection Of Plates (AREA)

Abstract

PROBLEM TO BE SOLVED: To prevent, in a locking device for a fastener having a structure in which an inner thread is formed in a hole provided at a tip of a bolt and slits are formed on the outer periphery of the tip so that a new bolt may be screwed therein, the inner thread at the tip of the bolt from being stripped by attachment and detachment of the new bolt while securing the locking.SOLUTION: An inner taper 5 is formed in the opening of the hole 4 of a body bolt 8, and the inner thread 6 is formed inside the hole 4. An outer taper 12 is formed at the root of a shank 11 of a tapered bolt 14, and the inner thread 6 is provided at the tip side thereof. An outer thread 3 and the inner thread 6 of the body bolt 8 are formed to be reversed threads.

Description

本発明は、振動が加わる高圧送電線の鉄塔に使用するボルトや、リニアモータの取付けコイルの締結ボルト、さらには各種機器の締結ボルトとして用いる締結具の緩み止め装置に関する。   The present invention relates to a bolt used for a steel tower of a high-voltage power transmission line to which vibration is applied, a fastening bolt for a mounting coil of a linear motor, and a fastener locking device used as a fastening bolt for various devices.

簡易な緩み止め防止装置として、特許文献１に記載のものが提案されている。
これはボルトの軸部先端部に孔を形成し、その孔に内ネジを形成する。さらにそのボルト先端部に、周方向に離間して複数のすり割りを形成する。そして内ネジに整合する補助ボルトを用意し、その補助ボルトの頭部をテーパ状に形成する。そしてボルト外周にナットを螺着して、被締結部材を締結固定する。次いで、補助ボルトをボルトの先端部の内ネジに螺着締結し、補助ボルトのテーパ部によってボルト先端部を拡開するものである。 The thing of patent document 1 is proposed as a simple locking prevention apparatus.
This forms a hole in the front end portion of the shaft portion of the bolt, and an internal screw is formed in the hole. Further, a plurality of slits are formed in the bolt front end portion so as to be spaced apart from each other in the circumferential direction. Then, an auxiliary bolt that matches the inner screw is prepared, and the head of the auxiliary bolt is formed in a tapered shape. Then, a nut is screwed on the outer periphery of the bolt to fasten and fix the member to be fastened. Next, the auxiliary bolt is screwed and fastened to the inner screw at the front end portion of the bolt, and the front end portion of the bolt is expanded by the taper portion of the auxiliary bolt.

特開２００９−２９９８８５号公報JP 2009-299885 A

特許文献１に記載された緩み止め防止ボルトは、補助ボルトの頭部に設けたテーパ部がボルト先端の内ネジに圧入され、その先端部を拡開するものである。即ち、テーパ部が内ネジのネジ内に入り込むことになる。そのため、内ネジはテーパ部の進入によりその山が潰れてしまうおそれがあり、補助ボルトの着脱を繰り返すことができなくなる。
また、ボルト先端の拡開の範囲はナットの螺着位置よりも先端側になる。そのため、ナットは僅かな緩みが生じるおそれがある。 In the bolt for preventing loosening described in Patent Document 1, a tapered portion provided at the head of an auxiliary bolt is press-fitted into an inner screw at the tip of the bolt, and the tip is expanded. That is, the taper portion enters the screw of the inner screw. Therefore, the crest of the inner screw may be crushed due to the entry of the taper portion, and the auxiliary bolt cannot be repeatedly attached and detached.
Further, the range of expansion of the bolt tip is closer to the tip than the screwing position of the nut. For this reason, the nut may be slightly loosened.

さらには、ナットと補助ボルトは同一の回転方向に螺着されるから、振動等によりそのナットと補助ボルトが同時に緩むおそれがある。
そこで、本発明は係る問題点を解決することを課題とする。 Furthermore, since the nut and the auxiliary bolt are screwed in the same rotational direction, the nut and the auxiliary bolt may be loosened at the same time due to vibration or the like.
Then, this invention makes it a subject to solve the problem which concerns.

請求項１に記載の本発明は、一端外周に多角形の頭部(1)を有し、その軸部(2)の外周に外ネジ(3)が形成され、その軸部(2)の軸線上に孔(4)が形成され、その孔(4)の開口部に頭部側に縮小する内テーパ(5)が形成され、その孔(4)内に内ネジ(6)が形成され、その軸部(2)の一端に軸線方向にスリット(7)がその軸部外周および前記内テーパを縦断して形成された本体ボルト(8)と、
その本体ボルト(8)の外ネジ(3)に螺着され、外周が多角形のナット(9)と、
一端外周に多角形の頭部(10)を有し、その軸部(11)の根元部に先端側に縮小する外テーパ(12)が形成され、その外テーパ(12)より先端側に前記内ネジ(6)に螺着される外ネジ(13)が形成されたテーパボルト(14)と、を具備し、
前記本体ボルト(8)の外ネジ(3)の螺回方向と、前記本体ボルト(8)の前記内ネジ(6)の螺回方向とが逆ネジに形成され、
前記テーパボルト(14)の軸部(11)が前記本体ボルト(8)の内ネジ(6)に螺着締結され、そのテーパボルト(14)の外テーパ(12)が本体ボルト(8)の内テーパ(5)に圧入されて、本体ボルト(8)の軸部(11)の先端部が拡開されたとき、その変形がナット(9)との螺着部にも形成され、それによりナット(9)が締結方向に外力が加わるようにした締結具の緩み止め装置である。 The present invention according to claim 1 has a polygonal head (1) on one outer periphery, an outer screw (3) is formed on the outer periphery of the shaft (2), and the shaft (2) A hole (4) is formed on the axis, an inner taper (5) is formed at the opening of the hole (4), and the inner taper (5) is formed in the hole (4). A main body bolt (8) formed with a slit (7) in the axial direction at one end of the shaft portion (2) and vertically cutting the outer periphery of the shaft portion and the inner taper;
A screw (3) threaded on the body bolt (8), and a polygonal nut (9) on the outer periphery;
The outer periphery of one end has a polygonal head (10), and an outer taper (12) is formed at the base of the shaft (11). A taper bolt (14) formed with an outer screw (13) to be screwed to the inner screw (6),
The screwing direction of the external screw (3) of the main body bolt (8) and the screwing direction of the internal screw (6) of the main body bolt (8) are formed as reverse screws,
The shaft portion (11) of the taper bolt (14) is screwed and fastened to the inner screw (6) of the main body bolt (8), and the outer taper (12) of the taper bolt (14) is the inner taper of the main body bolt (8). When the tip of the shaft portion (11) of the main body bolt (8) is expanded by being press-fitted into (5), the deformation is also formed in the screwed portion with the nut (9), thereby the nut ( 9) is a device for preventing loosening of a fastener in which an external force is applied in the fastening direction.

請求項２に記載の本発明は、請求項１に記載の締結具の緩み止め装置において、
非締結状態で、本体ボルト(8)の内テーパ(5)のテーパ角度が、テーパボルト(14)の外テーパ(12)のそれより小に形成された締結具の緩み止め装置である。
請求項３に記載の本発明は、請求項２に記載の締結具の緩み止め装置において、
ナット(9)の締結状態で、テーパボルト(14)の螺着締結を伴う本体ボルト(8)の先端部の拡開により、本体ボルト(8)の内テーパ(5)のテーパ角度が、テーパボルト(14)の外テーパ(12)のそれに略整合するように構成された締結具の緩み止め装置である。 According to a second aspect of the present invention, in the fastener locking device according to the first aspect,
In the unfastened state, the fastener is a loosening prevention device in which the taper angle of the inner taper (5) of the main body bolt (8) is smaller than that of the outer taper (12) of the taper bolt (14).
According to a third aspect of the present invention, in the fastener locking device according to the second aspect,
When the nut (9) is tightened, the taper angle of the inner taper (5) of the main body bolt (8) is increased by the expansion of the tip of the main body bolt (8) accompanied by the threaded tightening of the taper bolt (14). 14) a fastener locking device configured to substantially match that of the outer taper (12) of 14).

本発明の緩み止め装置は、テーパボルト14の軸部11が本体ボルト８の内ネジ６に締結され、その本体ボルト８の先端部が拡開されたとき、その変形がナット９の螺着部にも形成され、それによってナット９が締結方向に外力が加わるようにしたから、ナット９と本体ボルト８との緩み止めを確実に行い得る。
また、ナット９の螺着方向とテーパボルト14の螺着方向とを逆向きに形成したから、締結の際、被締結部材のナット９側でそのナット９とテーパボルト14とを一対の締結具を互いに逆方向に回転して、同時に締め付けることが可能となる。それにより、より確実な緩み止め効果を得ることができる。さらには、各ボルトが振動により一方側に回転するようになっても、ナット９とテーパボルト14は逆ネジであるため、他方がより締結されて、緩むことを確実に防止できる。 In the locking device of the present invention, when the shaft portion 11 of the taper bolt 14 is fastened to the inner screw 6 of the main body bolt 8 and the front end portion of the main body bolt 8 is expanded, the deformation is applied to the screwed portion of the nut 9. Is formed so that an external force is applied to the nut 9 in the fastening direction, so that the nut 9 and the main body bolt 8 can be reliably prevented from loosening.
In addition, since the screwing direction of the nut 9 and the screwing direction of the taper bolt 14 are formed in opposite directions, at the time of fastening, the nut 9 and the taper bolt 14 are connected to each other on the nut 9 side of the member to be fastened. It is possible to rotate in the opposite direction and tighten at the same time. Thereby, a more reliable loosening prevention effect can be obtained. Furthermore, even if each bolt rotates to one side due to vibration, the nut 9 and the taper bolt 14 are reverse screws, so that it is possible to reliably prevent the other from being tightened and loosened.

上記構成において、請求項２に記載のように、本体ボルト８の内テーパ５のテーパ角度をテーパボルト14の外テーパ12のそれより小に形成した場合には、その圧入の際、各テーパ部で互いに線接触して、より円滑に本体ボルト８の先端部を拡開することができる。
上記構成において、請求項３に記載のように、ナット９の締結状態でテーパボルト14を介して本体ボルト８の先端部を拡開することにより、本体ボルト８の内テーパ５のテーパ角度をテーパボルト14の外テーパ12のそれに略整合するように構成した場合には、締結後にテーパボルト14の外テーパ12と、本体ボルト８の内テーパ５とが面で接触し、より強固な抜け止め効果を得ることができる。 In the above configuration, when the taper angle of the inner taper 5 of the body bolt 8 is smaller than that of the outer taper 12 of the taper bolt 14 as described in claim 2, at the time of press-fitting, each taper portion By making line contact with each other, the tip end portion of the main body bolt 8 can be expanded more smoothly.
In the above-described configuration, as described in claim 3, the tip end portion of the main body bolt 8 is expanded via the taper bolt 14 in the tightened state of the nut 9, whereby the taper angle of the inner taper 5 of the main body bolt 8 is changed to the taper bolt 14. If the outer taper 12 is configured to substantially match that of the outer taper 12, the outer taper 12 of the taper bolt 14 and the inner taper 5 of the main body bolt 8 come into contact with each other after fastening, thereby obtaining a stronger retaining effect. Can do.

本発明の締結具の緩み止め装置の分解斜視図。The disassembled perspective view of the locking device of the fastener of this invention. 同装置の締結過程の説明図。Explanatory drawing of the fastening process of the apparatus. 同装置の一部破断分解正面図。The partially broken disassembled front view of the same apparatus. 同装置の締結説明図。The fastening explanatory view of the device. 同要部断面図であって、締結前の状態を示す。It is the principal part sectional drawing, Comprising: The state before a fastening is shown. 同要部断面図であって、締結後の状態を示す。It is the principal part sectional drawing, Comprising: The state after fastening is shown.

次に、図面に基づいて本発明の実施の形態につき説明する。
本発明の締結具の緩み止め装置は、図１〜図４に示す如く、本体ボルト８とナット９とテーパボルト14とからなる。
本体ボルト８は、その一端外周に多角形（この例は六角形）の頭部１を有し、その軸部２の外周に外ネジ３が形成されている。そして、その軸部２の軸端の軸線上に孔４が形成され、その孔４の開口部に頭部１側に縮小する内テーパ５が形成されている。そして、その内テーパ５の終端部を含んで、孔４内に内ネジ６が形成され、その軸部２の一端部に軸線方向に複数のスリット７が形成され、それが軸部外周及び内テーパ５を横断して形成されている。このように、内ネジ６が内テーパ５の端部を含むことにより、テーパボルト14を螺着締結して拡開するとき、螺着が円滑で且つ、それらのネジ部を損傷することがない。 Next, embodiments of the present invention will be described with reference to the drawings.
The fastener locking device according to the present invention comprises a main body bolt 8, a nut 9, and a taper bolt 14 as shown in FIGS.
The main body bolt 8 has a polygonal (in this example, hexagonal) head 1 on the outer periphery of one end, and an outer screw 3 is formed on the outer periphery of the shaft portion 2. A hole 4 is formed on the axis of the shaft end of the shaft portion 2, and an inner taper 5 that is reduced toward the head 1 side is formed at the opening of the hole 4. An inner screw 6 is formed in the hole 4 including the end portion of the inner taper 5, and a plurality of slits 7 are formed in one end portion of the shaft portion 2 in the axial direction. It is formed across the taper 5. Thus, when the inner screw 6 includes the end portion of the inner taper 5, when the taper bolt 14 is screwed and fastened to expand, the screwing is smooth and the screw portions are not damaged.

また、スリット７は、図３に示す如く、本体ボルト８の内テーパ５および内ネジ６の端部まで形成されている。スリット７の数は、この例では４本であるが、それをさらに増すことも可能である。
本体ボルト８の外ネジ３は、この例では右ネジに形成され、その内ネジ６は左ネジに形成されている。そして、この外ネジ３に右ネジのナット９が螺着される。
このナット９は、通常の規格ナットを用いることもできるが、それより少し高さの高いものを使用すれば締結力を増すことができる。ナット９の外周は、多角形（この例では六角形）に形成されている。 Further, as shown in FIG. 3, the slit 7 is formed to the inner taper 5 of the main body bolt 8 and the end of the inner screw 6. The number of the slits 7 is four in this example, but it can be further increased.
In this example, the outer screw 3 of the main body bolt 8 is a right-hand screw, and the inner screw 6 is a left-hand screw. Then, a right screw nut 9 is screwed onto the outer screw 3.
A normal standard nut can be used as the nut 9, but if a nut having a slightly higher height is used, the fastening force can be increased. The outer periphery of the nut 9 is formed in a polygon (in this example, a hexagon).

次に、テーパボルト14は、一端外周に多角形の頭部10（この例では六角形）を有し、その軸部11の根元部に先端側に縮小する外テーパ12が形成されている。そしてその外テーパ12より先端側に左ネジの外ネジ13が形成され、それが本体ボルト８の内ネジ６に螺着される。
なお、テーパボルト14の外ネジ13を右ネジとし、本体ボルト８の内ネジ６も右ネジとすると共に、本体ボルト８の外ネジ３を左ネジとし、ナット９も左ネジとすることができる。何れにしても、本体ボルト８の内ネジ６と外ネジ３とは逆ネジに形成される。
そのようにすることにより、振動によりナット９とテーパボルト14との一方が緩んでも他方が締結されることになる。 Next, the taper bolt 14 has a polygonal head 10 (in this example, a hexagon) at the outer periphery of one end, and an outer taper 12 that is reduced toward the tip is formed at the base of the shaft 11. A left-handed external screw 13 is formed on the front end side of the outer taper 12 and is screwed to the inner screw 6 of the body bolt 8.
The outer screw 13 of the taper bolt 14 can be a right screw, the inner screw 6 of the main body bolt 8 can be a right screw, the outer screw 3 of the main body bolt 8 can be a left screw, and the nut 9 can also be a left screw. In any case, the inner screw 6 and the outer screw 3 of the main body bolt 8 are formed as reverse screws.
By doing so, even if one of the nut 9 and the taper bolt 14 is loosened due to vibration, the other is fastened.

本体ボルト８の内テーパ５のテーパ角度は、図４から明らかなように、テーパボルト14の外テーパ12のテーパ角度よりも僅かに小である。これは、テーパボルト14を本体ボルト８に挿入し易くし、それを締結したとき、本体ボルト８の先端部の拡開に伴ってその内テーパ５が広がる。そして、拡開の最終で外テーパ12と内テーパ５とが整合し、両者が面接触することにより、その滑止め効果を発揮させるためである。   The taper angle of the inner taper 5 of the main body bolt 8 is slightly smaller than the taper angle of the outer taper 12 of the taper bolt 14 as is apparent from FIG. This makes it easy to insert the taper bolt 14 into the main body bolt 8, and when it is fastened, the inner taper 5 of the main body bolt 8 expands as the tip of the main body bolt 8 expands. Then, the outer taper 12 and the inner taper 5 are aligned at the end of the expansion, and both come into surface contact with each other, thereby exhibiting the anti-slip effect.

〔作用〕
次に、本発明の締結具の緩み止め装置の作用につき説明する。
先ず、一例として一対の被締結部材15のボルト挿通孔に、本体ボルト８の軸部２を挿通し、ナット９を本体ボルト８の外ネジ３に螺着する。それと共に、テーパボルト14を本体ボルト８の内ネジ６に螺着し、図４の如く、実線の状態から鎖線の状態に締結する。すると本体ボルト８の軸部２の先端部は、実線の状態から鎖線の状態に拡開される。即ち、図５の状態から図６の状態に締結される。そして本体ボルト８の先端部が変形し、その変形はナット９の雌ネジ部分まで及ぶ。すると、その変形によってナット９は締結方向に外力が加えられることになる。 [Action]
Next, the operation of the fastener locking device of the present invention will be described.
First, as an example, the shaft portion 2 of the main body bolt 8 is inserted into the bolt insertion holes of the pair of fastened members 15, and the nut 9 is screwed to the outer screw 3 of the main body bolt 8. At the same time, the taper bolt 14 is screwed onto the inner screw 6 of the main body bolt 8 and fastened from the solid line state to the chain line state as shown in FIG. Then, the front-end | tip part of the axial part 2 of the main body volt | bolt 8 is expanded from the state of a solid line to the state of a chain line. That is, it is fastened from the state of FIG. 5 to the state of FIG. And the front-end | tip part of the main body bolt 8 deform | transforms, and the deformation | transformation reaches to the internal thread part of the nut 9. FIG. Then, an external force is applied to the nut 9 in the fastening direction by the deformation.

なお、テーパボルト14を締結するには、図２に示す如く、被締結部材15に対して本体ボルト８の頭部１の反対側でナット９の外周に第１スパナ16を嵌着し、テーパボルト14の外周に第２スパナ17を嵌着する。そして、互いに矢印の如く逆方向に回転することにより、両者を同時に且つ、確実に締め付けることができる。そして図６の如く、本体ボルト８の先端部は鎖線の状態から実線の状態に変形する。このとき、テーパボルト14の外テーパ12と本体ボルト８の内テーパ５とは整合する。そのため、ナット９が緩むことを防止する。
さらに、ナット９は右ネジであり、テーパボルト14は左ネジであるため、振動等が生じても一方が緩む方向であるとすれば、他方は締め付ける方向となり、何れにしても緩み止め効果が生じる。さらには、外ネジ３の変形によりナット９は締結方向に付勢される。 In order to fasten the taper bolt 14, as shown in FIG. 2, a first spanner 16 is fitted on the outer periphery of the nut 9 on the opposite side of the head 1 of the body bolt 8 with respect to the fastened member 15, and the taper bolt 14 is fitted. A second spanner 17 is fitted on the outer periphery of the. Then, by rotating in opposite directions as indicated by arrows, both can be simultaneously and reliably tightened. And as shown in FIG. 6, the front-end | tip part of the main body bolt 8 deform | transforms from the state of a chain line to the state of a continuous line. At this time, the outer taper 12 of the taper bolt 14 and the inner taper 5 of the main body bolt 8 are aligned. Therefore, the nut 9 is prevented from loosening.
Further, since the nut 9 is a right-hand thread and the taper bolt 14 is a left-hand thread, if one of them is in the direction of loosening even if vibration or the like occurs, the other is in the direction of tightening, and in any case, the effect of preventing looseness occurs. . Furthermore, the nut 9 is biased in the fastening direction by the deformation of the external screw 3.

１ 頭部
２ 軸部
３ 外ネジ
４ 孔
５ 内テーパ
６ 内ネジ
７ スリット
８ 本体ボルト
９ ナット DESCRIPTION OF SYMBOLS 1 Head 2 Shaft part 3 External screw 4 Hole 5 Inner taper 6 Internal screw 7 Slit 8 Body bolt 9 Nut

10 頭部
11 軸部
12 外テーパ
13 外ネジ
14 テーパボルト
15 被締結部材
16 第１スパナ
17 第２スパナ
18 底部 10 heads
11 Shaft
12 Outer taper
13 External screw
14 Taper bolt
15 Fastened member
16 First spanner
17 Second spanner
18 Bottom

Claims (3)

一端外周に多角形の頭部(1)を有し、その軸部(2)の外周に外ネジ(3)が形成され、その軸部(2)の軸線上に孔(4)が形成され、その孔(4)の開口部に頭部側に縮小する内テーパ(5)が形成され、その孔(4)内に内ネジ(6)が形成され、その軸部(2)の一端に軸線方向にスリット(7)がその軸部外周および前記内テーパを縦断して形成された本体ボルト(8)と、
その本体ボルト(8)の外ネジ(3)に螺着され、外周が多角形のナット(9)と、
一端外周に多角形の頭部(10)を有し、その軸部(11)の根元部に先端側に縮小する外テーパ(12)が形成され、その外テーパ(12)より先端側に前記内ネジ(6)に螺着される外ネジ(13)が形成されたテーパボルト(14)と、
を具備し、
前記本体ボルト(8)の外ネジ(3)の螺回方向と、前記本体ボルト(8)の前記内ネジ(6)の螺回方向とが逆ネジに形成され、
前記テーパボルト(14)の軸部(11)が前記本体ボルト(8)の内ネジ(6)に螺着締結され、そのテーパボルト(14)の外テーパ(12)が本体ボルト(8)の内テーパ(5)に圧入されて、本体ボルト(8)の軸部(11)の先端部が拡開されたとき、その変形がナット(9)との螺着部にも形成され、それによりナット(9)が締結方向に外力が加わるようにした締結具の緩み止め装置。 It has a polygonal head (1) on the outer periphery of one end, an external screw (3) is formed on the outer periphery of the shaft (2), and a hole (4) is formed on the axis of the shaft (2). In the opening of the hole (4), an inner taper (5) is formed that shrinks to the head side, an inner screw (6) is formed in the hole (4), and one end of the shaft (2) is formed. A main body bolt (8) formed with a slit (7) in the axial direction by longitudinally cutting the outer periphery of the shaft portion and the inner taper,
A screw (3) threaded on the body bolt (8), and a polygonal nut (9) on the outer periphery;
The outer periphery of one end has a polygonal head (10), and an outer taper (12) is formed at the base of the shaft (11). A taper bolt (14) formed with an outer screw (13) to be screwed to the inner screw (6);
Comprising
The screwing direction of the external screw (3) of the main body bolt (8) and the screwing direction of the internal screw (6) of the main body bolt (8) are formed as reverse screws,
The shaft portion (11) of the taper bolt (14) is screwed and fastened to the inner screw (6) of the main body bolt (8), and the outer taper (12) of the taper bolt (14) is the inner taper of the main body bolt (8). When the tip of the shaft portion (11) of the main body bolt (8) is expanded by being press-fitted into (5), the deformation is also formed in the screwed portion with the nut (9), thereby the nut ( 9) A device for preventing loosening of fasteners in which external force is applied in the fastening direction. 請求項１に記載の締結具の緩み止め装置において、
非締結状態で、本体ボルト(8)の内テーパ(5)のテーパ角度が、テーパボルト(14)の外テーパ(12)のそれより小に形成された締結具の緩み止め装置。 In the fastener locking device according to claim 1,
A fastener locking prevention device in which the taper angle of the inner taper (5) of the main body bolt (8) is smaller than that of the outer taper (12) of the taper bolt (14) in an unfastened state. 請求項２に記載の締結具の緩み止め装置において、
ナット(9)の締結状態で、テーパボルト(14)の螺着締結を伴う本体ボルト(8)の先端部の拡開により、本体ボルト(8)の内テーパ(5)のテーパ角度が、テーパボルト(14)の外テーパ(12)のそれに略整合するように構成された締結具の緩み止め装置。 The fastener locking device according to claim 2,
When the nut (9) is tightened, the taper angle of the inner taper (5) of the main body bolt (8) is increased by the expansion of the tip of the main body bolt (8) accompanied by the threaded tightening of the taper bolt (14). A fastener locking device configured to substantially match that of the outer taper (12) of 14).
JP2011036222A 2011-02-22 2011-02-22 Locking device for fastener Pending JP2012172780A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2011036222A JP2012172780A (en) 2011-02-22 2011-02-22 Locking device for fastener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011036222A JP2012172780A (en) 2011-02-22 2011-02-22 Locking device for fastener

Publications (1)

Publication Number Publication Date
JP2012172780A true JP2012172780A (en) 2012-09-10

Family

ID=46975874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2011036222A Pending JP2012172780A (en) 2011-02-22 2011-02-22 Locking device for fastener

Country Status (1)

Country Link
JP (1) JP2012172780A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014013071A (en) * 2012-07-03 2014-01-23 Iijima Seisakusho:Kk Lock type bolt and locking method
KR20140123291A (en) * 2013-04-12 2014-10-22 삼성전자주식회사 Refrigerator
CN108757706A (en) * 2018-08-15 2018-11-06 吴雁南 A kind of anti-loose connection bolt assembly
JP7017682B1 (en) * 2021-01-19 2022-02-09 有限会社三洋特殊鋲螺製作所 Bolt to assist loosening prevention
JP7460304B2 (en) 2020-12-04 2024-04-02 トヨタホーム株式会社 Electrical box grounding structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4619205Y1 (en) * 1967-09-09 1971-07-05
JPS60127111U (en) * 1984-01-30 1985-08-27 佐藤螺旋株式会社 fastener
JPS6232218U (en) * 1985-08-13 1987-02-26

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4619205Y1 (en) * 1967-09-09 1971-07-05
JPS60127111U (en) * 1984-01-30 1985-08-27 佐藤螺旋株式会社 fastener
JPS6232218U (en) * 1985-08-13 1987-02-26

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014013071A (en) * 2012-07-03 2014-01-23 Iijima Seisakusho:Kk Lock type bolt and locking method
KR20140123291A (en) * 2013-04-12 2014-10-22 삼성전자주식회사 Refrigerator
KR102073004B1 (en) * 2013-04-12 2020-02-04 삼성전자주식회사 Refrigerator
CN108757706A (en) * 2018-08-15 2018-11-06 吴雁南 A kind of anti-loose connection bolt assembly
JP7460304B2 (en) 2020-12-04 2024-04-02 トヨタホーム株式会社 Electrical box grounding structure
JP7017682B1 (en) * 2021-01-19 2022-02-09 有限会社三洋特殊鋲螺製作所 Bolt to assist loosening prevention

Similar Documents

Publication Publication Date Title
US11274696B2 (en) Fastening structure
JP3212694U (en) Loosening prevention bolt
US20100183399A1 (en) Anti-loosening fastener
JP2012172780A (en) Locking device for fastener
JP2013543962A (en) Detent screw
KR20090032364A (en) Bolt for preventing over-torque
JP2012102783A (en) Fastening tool
JP2017141853A (en) Method for manufacturing fastener comprising bolt and nut
JP2004211885A (en) Bolt nut connection structure
JP3179874U (en) Fastener consisting of bolt and nut
JP5712408B2 (en) Locking bolt
JP2005030584A (en) Bolt/nut antiloosening structure
JP3178205U (en) Bolt fall-off prevention structure
WO2015019872A1 (en) Screw set
EP3469220B1 (en) Bolt with safety device for a bolt head and a method for releasing the bolt
JP2012082892A (en) Blind bolt
JP2000145742A (en) Male screw member free from following turn
JP2001003915A (en) Locking nut
JP2003301829A (en) Bolt-nut locking structure
JP2013221617A (en) Lock nut
JP5300069B2 (en) Tamper-proof bolt and method of using the same
KR20090032367A (en) Bolt for anti-loose
JP3240420U (en) one way clutch
JP2013087946A (en) Insert nut and mounting method thereof
JP6651244B2 (en) Locking bolt set

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20140212

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20141218

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20150106

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20150512