WO2004015285A1 - Element de fixation - Google Patents

Element de fixation Download PDF

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Publication number
WO2004015285A1
WO2004015285A1 PCT/JP2003/009962 JP0309962W WO2004015285A1 WO 2004015285 A1 WO2004015285 A1 WO 2004015285A1 JP 0309962 W JP0309962 W JP 0309962W WO 2004015285 A1 WO2004015285 A1 WO 2004015285A1
Authority
WO
WIPO (PCT)
Prior art keywords
nut
fastening member
head portion
tapered portion
head
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.)
Ceased
Application number
PCT/JP2003/009962
Other languages
English (en)
Japanese (ja)
Inventor
Yasuhisa Kurihara
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 AU2003252408A priority Critical patent/AU2003252408A1/en
Priority to JP2005506124A priority patent/JP3860200B2/ja
Publication of WO2004015285A1 publication Critical patent/WO2004015285A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/284—Locking by means of elastic deformation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06—Specially-shaped heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members

Definitions

  • the present invention relates to a fastening member such as a nut and a port that fastens and fixes a member using a screw action, and more particularly to a fastening member having a suitable loosening prevention action.
  • Nuts and ports have been widely used in various fields as fastening members used for fastening and fixing parts and members. These nuts and ports are used to tighten and fix parts and members. However, if vibrations repeatedly act on these fastening parts, the nuts and bolts may loosen. For this purpose, flat plate springs and spring washers have been used.
  • Japanese Patent Application Laid-Open No. 2002-122 Japanese Patent Application Laid-Open No. Hei 9-72325) and a method in which the inner peripheral surface of a nut is partially formed on a taper surface
  • Japanese Patent Application Laid-Open No. — Japanese Patent Publication No. 2681617 Japanese Patent Application Laid-Open No. — Japanese Patent Publication No. 2681617
  • a configuration in which a washer is integrally attached to a nut Japanese Patent Application Laid-Open No. Hei 9-53628
  • An object of the present invention is to provide a fastening member such as a nut or a port which can be extremely easily tightened and fixed, is easy to use, and has a simple structure because the fastening member does not loosen. Disclosure of the invention
  • the present invention has the following configuration to achieve the above object.
  • a fastening member for fastening an object to be fastened by a screw action a head portion for rotating the fastening member around an axis, and a base portion of the head portion integrally with the head portion.
  • the extension end side is formed in a cylindrical shape whose diameter gradually increases so as to be concentric with the head part and larger in diameter than the head part, and the extension end surface comes into contact with the object to be fastened.
  • a taper portion formed on the tape By providing the taper part in a shape that gradually expands the diameter from the head part integrally with the head part, it is possible to tighten and fix the object to be fastened extremely strongly. As a result, vibration and shock are absorbed to provide a fastening member having a suitable loosening prevention function.
  • the fastening member according to the present invention has a simple configuration, is easy to use, and is easy to manufacture.
  • the inner surface of the taper portion is formed as a conical curved surface.
  • the outer surface of the tapered portion is formed as a concave curved surface, the loosening preventing action by the fastening member can be further effective.
  • the outer surface of the taper portion is formed in a conical curved surface, it can have a certain loosening preventing action.
  • the fastening member may be provided as a nut having a screw hole formed in a head portion.
  • the fastening member may include a screw shaft formed coaxially with the head portion and the tapered portion. It can be provided as a bolt integrally formed with the head portion and the tapered portion on the base side of the portion. Further, the head portion and the tapered portion are formed of an iron-based material and are quenched.
  • FIGS. 4A and 4B are explanatory diagrams showing the arrangement of a test nut in a slack tester;
  • FIG. — E is an explanatory view showing another arrangement of the test nuts in the slack tester, and FIG.
  • FIG. 6 is an explanatory view showing a state in which the workpiece is tightened using a nut.
  • C is a front view, a left side view, and a right side view showing a configuration of a port as a fastening member according to the present invention.
  • FIG. I is an explanatory view showing a state in which with fit.
  • 1A to 1D are a front view, a sectional view, a plan view, and a bottom view showing the configuration of a nut as a first embodiment of a fastening member according to the present invention.
  • the nut 10 of the present embodiment is formed by integrally forming a head portion 12 having a hexagonal planar shape and a cylindrical tapered portion 14 whose tip end gradually increases in diameter. Things.
  • the head portion 12 is provided with a screw hole 16 like a normal nut. 1
  • the most characteristic configuration of the nut 10 of the present embodiment is the configuration of the taper portion 14 formed integrally with the head portion 12 concentrically with the head portion 12.
  • the tapered portion 14 has an outer surface formed into a concave curved surface, and an inner surface formed into a conical curved surface (the cross section of the surface is linearly inclined). That is, the tapered portion 14 is formed in a trumpet shape, and is formed in a cylindrical shape in which the extension end side is warped outward.
  • the end surface of the tapered portion 14 faces the object to be fastened, and the seating surface 14 a contacts the object to be fastened. Can be tightened.
  • the seat surface 14a is formed in a flat surface so as to come into contact with the object to be fastened when the nut 10 is tightened and fixed to the object to be fastened.
  • a non-slip groove 14b is provided concentrically on the seat surface 14a.
  • FIG. 2 shows the configuration of a nut 11 as a second embodiment of the fastening member according to the present invention.
  • the difference between the configuration of the nut 11 shown in FIG. 2 and the configuration of the nut 10 shown in FIG. 1 is the configuration of the tapered portion 14 formed integrally with the head portion 12.
  • FIG. 3 shows a comparison of the difference between the configuration of the nut 10 and the configuration of the nut 11.
  • 3A shows the cross-sectional shape of the nut 10 shown in FIG. 1
  • FIG. 3B shows the cross-sectional shape of the nut 11 shown in FIG.
  • the difference between the shape of the nut 10 and the shape of the nut 11 is that, in the nut 10, the outer surface A of the tapered portion 14 is formed as a concave curved surface, whereas in the nut 11, the shape is different.
  • the outer surface A of the taper section 14 is simply a conical curved surface.
  • the outline of the cross section of the tapered portion 14 is a straight line, but the outline of the cross section of the tapered portion 14 in FIG.
  • the part 14 has a shape in which the part C (shaded part) is removed from the outer peripheral surface of the nut 11.
  • the inner surface of the tapered portion 14 has a conical curved surface in any of the nuts 10 and 11. Therefore, in the case of the nut 11, the thickness of the tapered portion 14 is substantially constant between the head portion 12 side and the extending end side, whereas in the case of the nut 10, the tapered portion 1 is thickened.
  • Reference numeral 4 denotes a thin portion between the head portion 12 and an intermediate portion on the extension end side.
  • the nut 10 and the nut 11 shown in FIGS. 1 and 2 are provided with a head portion 12 and a tapered portion 14 extending from the head portion 12 in a cylindrical shape, so that a taper portion is provided.
  • 14 has a function of absorbing an impact, and can be used as a fastening member having an excellent loosening prevention function.
  • the thickness of the middle part of the tapered part 14 is reduced to reduce the nut.
  • Elasticity is imparted to the tapered portion 14 compared to 11 to maintain sufficient tightening force when the nut 10 is tightened, and to further absorb the shock and vibration applied to the nut 10 This makes it possible to maintain the tightened state firmly.
  • the seating surface 14 a of the tapered portion 14 is smaller than the nut 11.
  • the tapered portion 14 has a hem shape on the outside to secure a large area in contact with the object to be fastened when the nut 10 is tightened. 4a is easily brought into flat contact with the object to be fastened, and has an effect of easily absorbing vibration and impact.
  • the size of the nut 10 can be appropriately designed according to the size of the screw hole 16 and the like.
  • the shape of the tapered portion 14 should be a shape with a larger diameter on the distal end side, the height dimension of the tapered portion 14 should be at least a certain level, It is advantageous to reduce the thickness of the metal.
  • the ratio of the height H of the head portion 12 to the height H of the tapered portion 14 can be set as appropriate, but usually, the ratio may be about 1: 1.
  • the thickness of the taper portion 14 may be approximately the same as the thickness of the head portion 12 excluding the screw holes.
  • Figures 4 and 5 show the layout of the nuts tested with the high-speed slack tester during testing.
  • Figure 4A shows an arrangement tested with nuts tightened from one side
  • Figure 4B shows an arrangement tested with nuts tightened from both sides.
  • reference numeral 30 denotes a test nut
  • reference numeral 32 denotes a port.
  • the test nut 30 is fastened and fixed by a port 32 via a vibrating barrel 34 and a jig 36. In the test, the nut was fixed using a washer 38. 40 is a vibration table.
  • Fig. 5 shows a modification of the fastening method using nuts.
  • Fig. 5A shows an example in which two test nuts 30 are arranged face-to-face (facing) and tightened.
  • FIG. 5B is a test example. Nut 30 is tightened from both sides, and the inside nut 31 is inserted inside the test nut 30 and the middle nut 31 is also tightened.
  • Fig. 5C shows the middle nut 31 as the test nut 30 on both sides.
  • Fig. 5D shows an example where two test nuts 30 are tightened in the same direction.
  • Fig. 5E shows an example where two test nuts 30 are This is an example in which a lock holder 33 is mounted between two test nuts 30.
  • Table 1 shows the test results for the nut 10 shown in FIG. Two types of nuts with a seat width of 3.0 mm and 2.0 mm were used as test nuts. The tightening torque of the nut 10 in the loosening test was 51.2 (N-m).
  • Table 1 indicates the test arrangement of the test nut.
  • the lock holder was broken after 13 minutes and 20 seconds.
  • test nut with a seat width of 3.0 mm and the arrangement of Figs. 4A, 5D and 5E, and the test nut with a seat width of 2.0 mm It is characteristic that the arrangement shown in FIG. 5E is maintained in a state in which it does not loosen even after 15 minutes.
  • This high-speed slack tester is a device for testing by repeatedly applying vibration and impact at a high speed, and in a normal nut, it loosens within a few seconds to several tens of seconds. Even the most commercially available nuts (such as the double nut structure) that are said to have the highest tightening holding force can hold for only a few minutes, and the tightening force can be maintained for 15 minutes using this test method.
  • the nut that can hold the nut is equivalent to the highest level of the nut currently on the market and is rare for a nut structure.
  • Table 1 show that the nut 10 shown in FIG. 1 has extremely high tightening holding performance and slack prevention performance.
  • Tables 2 and 3 show that, for the nut 11 shown in Fig. 2, using the high-speed screw loosening tester with a frequency of 178 Orpm described above, the loosening of the screw was performed under the same conditions as the above-mentioned test. The result of the test is shown.
  • Table 2 shows the case where the tightening torque is 35.8 (Nm).
  • the test nuts were tested for the layout of Figs. 4A and 4B. Table 2
  • Table 3 shows the results of a test in which the tightening torque was set to 51.2 (N ⁇ m), as in Table 1. In Table 3, for those with a bearing surface width of 3.Omm, the tightening torque was made even larger than 51.2 (N, m), and the test was performed again at 75.8 (Nm). went. The nuts were tested in the configuration shown in Figure 4A. Table 3
  • FIG. 6 shows a use example in which the nut 10 of the above embodiment is used for fastening a member to be fastened.
  • 22 a and 22 b are the objects to be fastened, pass the port 24 through the through holes provided in the objects 22 a and 22 b, and screw the nut 10 into the port 24 to tighten it. It is fixed.
  • 26 a and 26 b are flat washers.
  • the nut 10 is screwed into the port 24 with the seat surface 14a of the tapered portion 14 facing the object to be fastened, and the head portion 12 is tightened with a spanner or the like. This allows the objects 22a and 22b to be tightened and fixed by exactly the same operation as a general nut.
  • the nuts 10 and 11 of the present embodiment are the same as ordinary nuts except that the taper section 14 is provided so as to extend from the head section 12. There is an advantage that it can be used by the same operation as the nuts used in the above. Further, by tightening with a predetermined torque, the object to be fastened can be securely tightened and fixed.
  • the nuts 10 and 11 of the present embodiment do not easily loosen due to the action of the tapered portion 14, and thus are preferably used as nuts for preventing loosening, particularly for an object to which vibration or impact repeatedly acts. can do.
  • resin or soft metal is filled in the space D inside the tapered portion 14 of the nuts 10 and 11, and the resin or soft metal is compressed when the nuts 10 and 11 are tightened. Then, the nuts 10 and 11 can be tightened together with the resin or the soft metal.
  • a nut has been described as an embodiment of the fastening member.
  • a porto as another embodiment of the fastening member will be described below.
  • FIG. 7A, 7B, and 7C are a front side, a left side view, and a right side view of Porto 40 as a fastening member according to the present invention.
  • the port 40 of the present embodiment is characterized in that the taper portion 14 is formed integrally with the head portion 12 to extend from the head portion 12 to the screw shaft 42 side.
  • the configuration of the tapered portion 14 is exactly the same as that of the tapered portion 14 in the nut 10 described above. ing.
  • the screw shaft 4 2 is arranged concentrically with the head portion 1 2 and the tapered portion 14, and is connected to the head portion 1 2 at the base position of the head portion 1 2, and the head portion 1 2 And the tapered portion 14 and the screw shaft 42 are integrally formed.
  • 4 2a is a thread.
  • FIG. 7B shows a state in which a hexagonal hole 12 a for fitting a hexagonal wrench is formed on the top of the head portion 12.
  • Fig. 7C shows that the tapered portion 14 is provided concentrically with the screw shaft 42, and the non-slip groove 14b is formed in the seating surface 14a of the tapered portion 14. .
  • FIG. 8 shows a state in which the objects to be fastened 28 a and 28 b are tightened and fixed using the bolt 40 of the present embodiment.
  • the screw shaft 42 of Porto 40 is screwed into the screw hole 29 provided in the object 28 b, and the seating surface 14 a of the tapered portion 14 of Porto 40 is connected to the end face of the object 28 a. And affixed.
  • the action of the taper portion 14 integrally formed with the head portion 12 causes the porto 40 to be loosened. , And can be securely tightened and fixed.
  • the bolt 40 shown in Figs. 7 and 8 has a hexagonal hole 12a in the head 12
  • the head portion 12 itself in a hexagonal shape in a planar shape, and to turn and tighten the porto 40 with a spanner or the like.
  • the form of the port 40 is not limited to the shape of the present embodiment, and can be formed into various shapes.
  • FIG. 8 shows an example in which the bolt 40 is used alone to fasten and fasten an object to be fastened, but the member is obtained by combining the port 40 shown in FIG. 8 with the nuts 10 and 11 described above.
  • the members are tightened from both sides by the tightening members provided with the taper portions 14, so that the members can be effectively tightened and fixed. .
  • the material used for the fastening members such as nuts and bolts according to the present invention is not particularly limited, but it has a certain strength and durability required for the fastening members such as nuts and bolts, and has a tapered portion. It must be formed to have a certain elasticity and strength as 14. For example, it is also effective to quench using iron-based materials.
  • the shape and dimensions of the nuts and bolts used as fastening members can be set as appropriate, and are similarly applicable from small diameter to large diameter. Since the configurations of the head portion 12 and the tapered portion 14 are simple, there is an advantage that their manufacture is easy.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Bolts, Nuts, And Washers (AREA)

Abstract

L'invention porte sur un élément de fixation de type écrou ou boulon ayant une action de blocage et se caractérisant en ce qu'il comprend une tête permettant de faire tourner l'élément de fixation autour de son axe et une section conique se présentant sous forme d'un cylindre dont le diamètre de l'extrémité - l'extrémité s'étendant intégralement et coaxialement avec la tête depuis la base de la tête - augmente progressivement pour dépasser le diamètre de la tête, et dont la surface terminale en extension est formée comme une surface d'appui venant buter contre le corps à fixer.
PCT/JP2003/009962 2002-08-08 2003-08-05 Element de fixation Ceased WO2004015285A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003252408A AU2003252408A1 (en) 2002-08-08 2003-08-05 Fastening member
JP2005506124A JP3860200B2 (ja) 2002-08-08 2003-08-05 締結部材

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2002-266126 2002-08-08
JP2002266126 2002-08-08
JP2002383318 2002-12-16
JP2002-383318 2002-12-16
JP2003-74926 2003-03-19
JP2003074926 2003-03-19

Publications (1)

Publication Number Publication Date
WO2004015285A1 true WO2004015285A1 (fr) 2004-02-19

Family

ID=31721299

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/009962 Ceased WO2004015285A1 (fr) 2002-08-08 2003-08-05 Element de fixation

Country Status (3)

Country Link
JP (1) JP3860200B2 (fr)
AU (1) AU2003252408A1 (fr)
WO (1) WO2004015285A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008136109A1 (fr) * 2007-04-26 2008-11-13 Yasuhisa Kurihara Elément de fixation
JP2009002481A (ja) * 2007-06-25 2009-01-08 Chugoku Electric Power Co Inc:The ナット
JP2013024418A (ja) * 2012-04-11 2013-02-04 Yamazaki Active:Kk 弛み止めボルト及びその製造方法
JP2015180840A (ja) * 2011-12-22 2015-10-15 株式会社ヤマザキアクティブ 締結部材
JP2015218780A (ja) * 2014-05-15 2015-12-07 日東精工株式会社 締結具

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012087853A (ja) * 2010-10-19 2012-05-10 Yamazaki Active:Kk 弛み止め締結部材及び弛み止めボルト
JP4975879B1 (ja) 2011-07-15 2012-07-11 株式会社ヤマザキアクティブ 弛み止めボルト及びその製造方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4885952A (fr) * 1972-02-22 1973-11-14
JPS529757A (en) * 1975-07-15 1977-01-25 Nippon Steel Corp Clamping method of bolt and its washer
JPS5323863U (fr) * 1976-08-07 1978-02-28
JPS56111309U (fr) * 1980-01-26 1981-08-28
JPS59101034U (ja) * 1982-12-27 1984-07-07 日野自動車株式会社 クツシヨンプレ−ト
JPS59141217U (ja) * 1983-03-12 1984-09-20 大園　義久 スプリングワツシヤ−付ねじ
JPS6189513U (fr) * 1984-11-19 1986-06-11
US5112178A (en) * 1990-08-08 1992-05-12 Teckentrup Gmbh & Co. Kg Spring washer for securing screws, nuts or the like

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4885952A (fr) * 1972-02-22 1973-11-14
JPS529757A (en) * 1975-07-15 1977-01-25 Nippon Steel Corp Clamping method of bolt and its washer
JPS5323863U (fr) * 1976-08-07 1978-02-28
JPS56111309U (fr) * 1980-01-26 1981-08-28
JPS59101034U (ja) * 1982-12-27 1984-07-07 日野自動車株式会社 クツシヨンプレ−ト
JPS59141217U (ja) * 1983-03-12 1984-09-20 大園　義久 スプリングワツシヤ−付ねじ
JPS6189513U (fr) * 1984-11-19 1986-06-11
US5112178A (en) * 1990-08-08 1992-05-12 Teckentrup Gmbh & Co. Kg Spring washer for securing screws, nuts or the like

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008136109A1 (fr) * 2007-04-26 2008-11-13 Yasuhisa Kurihara Elément de fixation
JP2009002481A (ja) * 2007-06-25 2009-01-08 Chugoku Electric Power Co Inc:The ナット
JP2015180840A (ja) * 2011-12-22 2015-10-15 株式会社ヤマザキアクティブ 締結部材
US9212682B2 (en) 2011-12-22 2015-12-15 Kabushiki Kaisha Yamazaki active Fastening member
JP2013024418A (ja) * 2012-04-11 2013-02-04 Yamazaki Active:Kk 弛み止めボルト及びその製造方法
JP2015218780A (ja) * 2014-05-15 2015-12-07 日東精工株式会社 締結具

Also Published As

Publication number Publication date
AU2003252408A1 (en) 2004-02-25
JP3860200B2 (ja) 2006-12-20
JPWO2004015285A1 (ja) 2005-12-02

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