JP6052694B1 - How to prevent loosening of head bolts or nuts - Google Patents

How to prevent loosening of head bolts or nuts Download PDF

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JP6052694B1
JP6052694B1 JP2016062662A JP2016062662A JP6052694B1 JP 6052694 B1 JP6052694 B1 JP 6052694B1 JP 2016062662 A JP2016062662 A JP 2016062662A JP 2016062662 A JP2016062662 A JP 2016062662A JP 6052694 B1 JP6052694 B1 JP 6052694B1
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groove
upper member
bolt
toothed washer
nut
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JP2017161060A (en
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良三 太田
良三 太田
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Abstract

【課題】強い締付け力を必要とする頭付ボルト又はナットの緩み止めを行う方法である。【解決手段】上部材１６にボルト孔１７を穿孔するとき、錐部と環状角溝切削部を合体した切削工具により、同時にボルト孔１７と環状角溝１８を加工し、この上部材の上に歯付座金５を載せて、その上より頭付ボルト１又はナットをねじ込むことにより歯付座金５の数個の突起６の突起側面切刃７を環状角溝１８の内側及び外側の壁面１９に喰い込ませて、歯付座金５を上部材１６に結合させた後、歯付座金の外歯１０を頭付ボルトの頭部鍔３の切溝４、又はナットの下部鍔の切溝に噛合せて、それらの回転を阻止するようにした頭付ボルト又はナットの緩み止めの方法。【選択図】図１A method for preventing loosening of a head bolt or nut that requires a strong tightening force. When a bolt hole 17 is drilled in an upper member 16, the bolt hole 17 and the annular angular groove 18 are simultaneously processed by a cutting tool in which a conical portion and an annular angular groove cutting portion are combined, and the upper member 16 is formed on the upper member. By mounting the toothed washer 5 and screwing the headed bolt 1 or nut onto the toothed washer 5, the protrusion side cutting blades 7 of the several protrusions 6 of the toothed washer 5 are placed on the inner and outer wall surfaces 19 of the annular rectangular groove 18. After the toothed washer 5 is engaged with the upper member 16, the external tooth 10 of the toothed washer meshes with the groove 4 of the head bolt 3 of the head bolt or the groove of the lower flange of the nut. A method of preventing loosening of the head bolts or nuts that prevents the rotation of the bolts. [Selection] Figure 1

Description

本発明は強い締付力を必要とする頭付ボルト又はナットの緩み止めを行う方法である。  The present invention is a method for preventing loosening of a head bolt or nut that requires a strong tightening force.

頭付ボルト又はナットの緩み止めの方法としては座金を上部材に固定し、この座金の外歯を折り曲げてボルトの頭及びナットの回転を阻止することは有効である、然しこの座金を上部材に固定するため、別工程で錐孔等の加工を必要とし、作業工程を遅らせるため、一般的には実施されていない。  It is effective to prevent the head bolt or nut from loosening by fixing the washer to the upper member and bending the outer teeth of this washer to prevent the bolt head and nut from rotating. In general, it is not implemented because a process such as a conical hole is required in a separate process and the work process is delayed.

本発明は座金を上部材に固定する方法として、ボルト孔の穿孔と同時に上部材に環状角溝を切削加工し、この溝を用いて確実に座金を上部材に結合させて、この座金により頭付ボルト又はナットの緩み止めを行うものである。  According to the present invention, as a method of fixing the washer to the upper member, an annular angular groove is cut in the upper member simultaneously with the drilling of the bolt hole, and the washer is securely coupled to the upper member by using this groove, and the head is secured by this washer. It is used to prevent loosening of attached bolts or nuts.

上部材１６にボルト孔１７を穿孔するとき、錐部２３と環状角溝切削部２４を合体した切削工具２２を使用して切削することにより、同時にボルト孔と環状角溝１８を加工し、この上部材の上に歯付座金５を載せて、その上より頭付ボルト１又はナット１３を強くねじ込んで歯付座金の下面の数個の突起６を押下げて、その突起の側面切刃７を環状角溝の内側及び外側の壁面１９に喰い込ませることにより、歯付座金を上部材に回転不可能に結合させた後、歯付座金の外歯１０を頭付ボルトの頭部鍔３の切溝４、又はナットの下部鍔１４の切溝１５に折曲げて噛合せて、それらの回転を阻止するようにした頭付ボルト又はナットの緩み止めを行う方法である。  When the bolt hole 17 is drilled in the upper member 16, the bolt hole and the annular angular groove 18 are simultaneously processed by cutting using the cutting tool 22 in which the conical portion 23 and the annular angular groove cutting portion 24 are combined. The toothed washer 5 is placed on the upper member, and the headed bolt 1 or nut 13 is firmly screwed on the upper member to push down the several protrusions 6 on the lower surface of the toothed washer, and the side cutting edge 7 of the protrusion Is inserted into the inner and outer wall surfaces 19 of the annular square groove so that the toothed washer is non-rotatably coupled to the upper member, and then the external teeth 10 of the toothed washer are attached to the head bolt 3 of the headed bolt. This is a method for preventing loosening of the headed bolt or nut which is bent and meshed with the kerf 4 or the kerf 15 of the lower flange 14 of the nut to prevent their rotation.

本発明の実施によりボルト孔穿孔の工程で環状角溝を同時に加工でき、これに喰い込み結合する座金により頭付ボルト及びナットの緩み止めを行うことが出来るため、モーター等大量生産する機器に、本発明の緩み止め方法を使用することにより簡単に緩み止めが可能になり、経済的な効果は大きい。  By implementing the present invention, it is possible to simultaneously process an annular square groove in the bolt hole drilling process, and it is possible to prevent loosening of the headed bolt and nut by a washer that bites into and joins it, so that the equipment for mass production such as a motor, By using the loosening prevention method of the present invention, the loosening prevention can be easily performed, and the economic effect is great.

本発明の実施形態の一例として、緩み止め施工後の頭付ボルトの縦断面図As an example of an embodiment of the present invention, a longitudinal cross-sectional view of a head bolt after loosening prevention construction 図１の平面図Plan view of FIG. 本発明の実施形態の一例として、歯付座金の平面図As an example of an embodiment of the present invention, a plan view of a toothed washer 図３のＡ−Ａ断面図AA sectional view of FIG. 本発明の実施形態の別の一例として、歯付座金の平面図As another example of the embodiment of the present invention, a plan view of a toothed washer 図５のＢ−Ｂ断面図BB sectional view of FIG. 本発明の実施形態の一例として、緩み止め施工後のナットの縦断面図As an example of an embodiment of the present invention, a longitudinal sectional view of a nut after a loosening prevention construction 図７の平面図Plan view of FIG. 本発明の実施形態の一例として、錐部と環状角溝切削部を合体した切削工具の縦断面図As an example of an embodiment of the present invention, a longitudinal sectional view of a cutting tool in which a conical portion and an annular angular groove cutting portion are combined

上部材１６にボルト孔１７を穿孔するとき、錐部２３と環状角溝切削部２４を合体した切削工具２２により切削することにより、同時にボルト孔と環状角溝１８を加工形成する。  When the bolt hole 17 is drilled in the upper member 16, the bolt hole and the annular angular groove 18 are simultaneously formed by cutting with the cutting tool 22 in which the conical portion 23 and the annular angular groove cutting portion 24 are combined.

図３及び図４の歯付座金の製作方法は、その素材の鉄板をプレス機により梯形穴に陥没させて、下面に突出した突起６を数箇所形成した後これを焼入硬化する、そして突起６の側面を研磨して切刃７を形成する、この歯付座金の突起６を環状角溝１８に落し込んで、この上より頭付ボルト１又はナット１３を強くねじ込んで押圧して、その突起の側面切刃７を環状角溝の内側及び外側の壁面１９に喰い込ませることにより、歯付座金を上部材に回転不可能に結合させる。  The toothed washer shown in FIGS. 3 and 4 is manufactured by causing the iron plate of the material to be depressed into a trapezoidal hole by a press machine, forming several protrusions 6 protruding on the lower surface, and hardening and hardening the protrusions 6. 6 is polished to form the cutting edge 7. The toothed washer projection 6 is dropped into the annular angular groove 18, and the head bolt 1 or nut 13 is strongly screwed and pressed from above. The toothed washer is non-rotatably coupled to the upper member by causing the side cutting edge 7 of the projection to bite into the inner and outer wall surfaces 19 of the annular square groove.

次にこの歯付座金の外歯８を頭付ボルトの頭部鍔３の切溝４、又はナットの下部鍔１４の切溝１５に折曲げて噛合せて、これらの回転を阻止することにより頭付ボルト又はナットの緩み止めを行うことができる。  Next, the external teeth 8 of the toothed washer are bent and meshed with the groove 4 of the head flange 3 of the head bolt or the groove 15 of the lower flange 14 of the nut, thereby preventing these rotations. The head bolt or nut can be prevented from loosening.

図３及び図４に示す歯付座金の代りに図５及び図６に示すように、側面に焼入硬化した切刃９を設けた短角釘８を素材の鉄板の角孔に数個、打込んで下面に突出させて突起６を形成し、この突起を環状角溝１８に落し込んで、内側及び外側壁面１９に喰込ませる方法もある。  As shown in FIGS. 5 and 6, instead of the toothed washer shown in FIGS. 3 and 4, several short-angled nails 8 provided with a cutting edge 9 hardened and hardened on the side surface are provided in the square holes of the steel plate. There is also a method in which a protrusion 6 is formed by driving and projecting to the lower surface, and this protrusion is dropped into the annular rectangular groove 18 and is bitten into the inner and outer wall surfaces 19.

１・・・頭付ボルト ２・・・ボルト雄ねじ山
３・・・ボルト頭部鍔 ４・・・ボルト頭部鍔の切溝
５・・・歯付座金 ６・・・歯付座金下面の突起
７・・・突起の側面切歯 ８・・・歯付座金の短角釘
９・・・短角釘の側面切歯 １０・・・歯付座金の外歯
１１・・・植込みボルト １２・・・植込みボルトの雄ねじ山
１３・・・ナット １４・・・ナットの下部鍔
１５・・・ナットの下部鍔の切溝 １６・・・上部材
１７・・・上部材のボルト孔 １８・・・上部材の環状角溝
１９・・・角溝の内側及び外側の壁面 ２０・・・下部材
２１・・・下部材の雌ねじ山 ２２・・・合体した切削工具
２３・・・合体切削工具の錐部 ２４・・・合体切削工具の環状角溝切削部DESCRIPTION OF SYMBOLS 1 ... Bolt with head 2 ... Male screw thread 3 ... Bolt head 鍔 4 ... Groove of bolt head 鍔 5 ... Toothed washer 6 ... Projection on the lower surface of toothed washer 7 ... Surface side incisors 8 ... Short angle nails of toothed washers 9 ... Side angle incisors of short angle nails 10 ... External teeth 11 of toothed washers ...・ Male thread 13 of the implanted bolt 13... Nut 14... Bottom nut 15... Groove of the bottom nut 16... Upper member 17. Annular square groove 19 of member: Wall surfaces inside and outside of square groove 20 ... Lower member 21 ... Female thread of lower member 22 ... Combined cutting tool 23 ... Conical part of combined cutting tool 24 ... Annular angular groove cutting part of a combined cutting tool

Claims (1)

上部材（１６）にボルト孔（１７）を穿孔するとき、錐部（２３）と環状角溝切削部（２４）を合体した切削工具（２２）を使用して切削することにより、同時にボルト孔と環状角溝（１８）を加工し、この上部材の上に歯付座金（５）を載せて、その上より頭付ボルト（１）又はナット（１３）を強くねじ込んで歯付座金の下面の数個の突起（６）を押下げて、その突起の側面切刃（７）を環状角溝の内側及び外側の壁面（１９）に喰い込ませることにより、歯付座金を上部材に回転不可能に結合させた後、歯付座金の外歯（１０）を頭付ボルトの頭部鍔（３）の切溝（４）、又はナットの下部鍔（１４）の切溝（１５）に折曲げて噛合せて、それらの回転を阻止するようにした頭付ボルト又はナットの緩み止めの方法。  When the bolt hole (17) is drilled in the upper member (16), the bolt hole is simultaneously cut by cutting using the cutting tool (22) in which the conical portion (23) and the annular angular groove cutting portion (24) are combined. An annular square groove (18) is processed, a toothed washer (5) is placed on the upper member, and a headed bolt (1) or a nut (13) is screwed into the upper surface of the upper member to force the lower surface of the toothed washer. Rotate the toothed washer to the upper member by pressing down the several protrusions (6) and allowing the side cutting edge (7) of the protrusion to bite into the inner and outer wall surfaces (19) of the annular groove After impossible coupling, the external tooth (10) of the toothed washer is inserted into the groove (4) of the head bolt (3) of the head bolt or the groove (15) of the lower hook (14) of the nut. A method of preventing loosening of head bolts or nuts that are bent and meshed to prevent their rotation.
JP2016062662A 2016-03-08 2016-03-08 How to prevent loosening of head bolts or nuts Expired - Fee Related JP6052694B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106917809A (en) * 2017-04-19 2017-07-04 贵州轮胎股份有限公司 A kind of device for preventing bolt looseness
WO2019109292A1 (en) * 2017-12-07 2019-06-13 舍弗勒技术股份两合公司 Washer for fastener

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110552951A (en) * 2018-05-30 2019-12-10 李瑛� Novel screw anti-loosening method and novel anti-loosening screw
CN110878792A (en) * 2019-12-05 2020-03-13 江苏以西杰电子科技有限公司 Anti-loosening gasket
KR102403940B1 (en) * 2020-09-16 2022-05-31 엘아이지넥스원 주식회사 Acoustic sensor verification apparatus and acoustic sensor verification assembly with the same

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JPS53122566U (en) * 1977-03-08 1978-09-29
JPS61128413U (en) * 1985-01-30 1986-08-12
JP2002039141A (en) * 2000-07-19 2002-02-06 Yanmar Diesel Engine Co Ltd Lock washer
JP2002122122A (en) * 2000-10-17 2002-04-26 Ikeya Kogyo Kk Bolt and nut assembling washer and screw type fastener
JP2002292512A (en) * 2001-03-29 2002-10-08 Omiko:Kk Rotating drilling tool

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JPS5330059Y2 (en) * 1976-02-14 1978-07-27
JPS53122566U (en) * 1977-03-08 1978-09-29
JPS61128413U (en) * 1985-01-30 1986-08-12
JP2002039141A (en) * 2000-07-19 2002-02-06 Yanmar Diesel Engine Co Ltd Lock washer
JP2002122122A (en) * 2000-10-17 2002-04-26 Ikeya Kogyo Kk Bolt and nut assembling washer and screw type fastener
JP2002292512A (en) * 2001-03-29 2002-10-08 Omiko:Kk Rotating drilling tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106917809A (en) * 2017-04-19 2017-07-04 贵州轮胎股份有限公司 A kind of device for preventing bolt looseness
CN106917809B (en) * 2017-04-19 2023-11-03 贵州轮胎股份有限公司 Device for preventing bolt from loosening
WO2019109292A1 (en) * 2017-12-07 2019-06-13 舍弗勒技术股份两合公司 Washer for fastener

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