KR101675982B1 - Nut for prevention of looseness - Google Patents

Nut for prevention of looseness Download PDF

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Publication number
KR101675982B1
KR101675982B1 KR1020150079113A KR20150079113A KR101675982B1 KR 101675982 B1 KR101675982 B1 KR 101675982B1 KR 1020150079113 A KR1020150079113 A KR 1020150079113A KR 20150079113 A KR20150079113 A KR 20150079113A KR 101675982 B1 KR101675982 B1 KR 101675982B1
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KR
South Korea
Prior art keywords
nut
bolt
base material
screwed
groove
Prior art date
Application number
KR1020150079113A
Other languages
Korean (ko)
Inventor
이방희
Original Assignee
(주)바이브록
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Publication date
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Priority to KR1020150079113A priority Critical patent/KR101675982B1/en
Application granted granted Critical
Publication of KR101675982B1 publication Critical patent/KR101675982B1/en

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    • 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
    • F16B37/00—Nuts or like thread-engaging members
    • 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
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts

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

Abstract

The present invention relates to a looseness prevention nut capable of preventing screw combination from loosening by increasing stress on a screw combination surface of a bolt and nut due to an elastic transformation of the nut when the bolt and the nut are screwed since an upward convex arch groove is formed on a center of a lower surface of the nut, screwed with the body of the bolt penetrating a base material; a support surface formed on both sides; and a washer placed between the base material and the nut. According to an advisable embodiment of the present invention, the looseness prevention nut comprises: a nut member including a combination hole of which screw thread is formed on an inner surface to be screwed with the body of the bolt, an upward convex arch groove formed on the lower surface, and a support surface formed on both sides of the groove; and a washer placed between the nut member and the base material, including a fixing groove in which the support surface is placed to be separable, and a through hole formed on a center to penetrate the body of the bolt. According to another embodiment of the present invention, the looseness prevention nut, screwed with the body of the bolt penetrating the base material, comprises: a nut member including a combination hole of which screw thread is formed on the inner surface to be screwed with the body of the bolt, an upward convex arch groove formed on the lower surface, and a support surface formed on both sides of the groove; and a washer placed between the nut member and the base material, having the support surface integrated with both sides of the upper surface, including a through hole formed on the center to penetrate the body of the bolt.

Description

[0001] NUT FOR PREVENTION OF LOOSENESS [0002]

More particularly, the present invention relates to an anti-loose nut, and more particularly, to an upper portion of a lower surface of a nut screwed into a body of a bolt passing through the base material, an upwardly convex arcuate groove is formed, Is provided with a washer in which the support surface is fixed so that the stress applied to the threaded surfaces of the bolt and the nut is increased due to the elastic deformation of the nut when the bolt and the nut are screwed so that the threaded joint is loosened or prevented from being loosened To an anti-loose nut.

In general, various structures such as automobiles, machines, and electric appliances use bolts and nuts screwed into the male threads of the bolts. There are two methods of tightening these nuts: "torque value control method" and "tightening angle control method".

The torque value control method is a method of tightening to a firing range within a range that does not exceed an elastic range by performing a tightening torque of a screw and an angular tightening method is a method in which a constant torque value First tighten and tighten it again by a certain angle.

However, the conventional screw fastening method as described above has a disadvantage that it is disengaged arbitrarily due to external factors such as vibration, and therefore, structures for preventing the fastening state from being solved by external factors such as vibration are required.

1. Korean Patent Publication No. 10-2004-0056707 (July 1, 2004)

2. Korean Patent Publication No. 10-2011-0134365 (December 14, 2011)

3. Korean Patent Registration No. 10-0398934 (September 10, 2003)

Accordingly, an object of the present invention is to provide a bolt threaded into a body of a base material, wherein a nut is screwed to the body and an upwardly convex arcuate groove is formed at the center of the lower surface of the nut, The nut is provided with a washer, so that the stress applied to the threaded surface of the bolt and the nut is increased due to the elastic deformation of the nut when the bolt and the nut are screwed together so that the threaded joint can be prevented from being loosened or prevented from being loosened will be.

According to an aspect of the present invention, there is provided a nut screwed to a body of a bolt penetrating through a base material, wherein a coupling hole having a thread formed on an inner circumference thereof is formed at the center so that the body of the bolt is screwed, A nut member having a groove formed on both sides of the groove and a fixing groove formed between the nut member and the base material for detachably mounting the support surface on both sides of the upper surface, And a washer having a through hole formed therethrough so as to penetrate the body.

According to another aspect of the present invention, there is provided a nut screwed into a body of a bolt penetrating through a base material, wherein a coupling hole having a thread formed on an inner circumference thereof is formed at the center so that the body of the bolt is screwed, And a supporting surface is formed on both sides of the groove, and a supporting surface is formed between the nut member and the base material. The support surface is integrally fixed to both sides of the upper surface and the through- And an anti-loosening nut characterized in that a formed washer is included.

In the unlocking nut according to an embodiment of the present invention, upwardly convex arcuate grooves are formed at the center of the lower surface of the nut screwed to the body of the bolt passing through the base material, A washer in which the supporting surface is fixed is fixed between the base material and the base material so that the stress applied to the threaded surface of the bolt and the nut is increased due to the elastic deformation of the nut when the bolt and the nut are screwed together to prevent the threaded joint from being loosened or loosened Can have a great advantage.

1 is a perspective view of a release preventing nut according to an embodiment of the present invention;
2 is an exploded perspective view of a release preventing nut according to one embodiment of the present invention.
FIGS. 3A and 3B are sectional views of an unlocking nut according to an embodiment of the present invention; FIG.
4 is a sectional view of an anti-loose nut according to another embodiment of the present invention.

FIG. 1 is a perspective view of a loosening prevention nut according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of a loosening prevention nut according to an embodiment of the present invention. In FIGS. 3a and 3b, Sectional view of an unlocking nut according to one embodiment, and FIG. 4 is a cross-sectional view of an unlocking nut according to another embodiment of the present invention.

According to a preferred embodiment of the present invention, an anti-loose nut is a nut screwed to a body of a bolt passing through a base material. In the center, a coupling hole having a screw thread is formed at the center of the bolt, A nut member having upwardly convex arcuate grooves formed on both sides of the groove and having a supporting surface formed on both sides of the groove, and fixing grooves positioned between the nut member and the base material, And a washer having a through hole formed at the center thereof so that the body of the bolt penetrates through the washer.

Hereinafter, the constituent members of the release preventing nut 1 according to an embodiment of the present invention and a method of using the same will be described in detail with reference to FIGS. 1 to 3B.

The nut member 10 is screwed to the first thread 31a formed on the body 31 of the bolt 30 penetrating the base material 40. The center of the nut member 10 has a second thread 11a And a support surface 13 is formed on both sides of the groove 12. The support surface 13 is formed on the lower surface of the coupling hole 11,

The groove 12 is screwed into the body 31 of the bolt 30 in the direction toward the base material 40 and the curvature of the groove 12 is adjusted by the size of the bolt 30 and the nut, And can be variously changed.

The washer 20 is positioned between the nut member 10 and the base material 40. The washer 20 increases the surface of the washer 40 which is brought into close contact with the base material 40 to increase the fastening force between the base material 40 and the nut 40 And at the same time serves to fix the nut member 10 so as not to slide on the washer 20.

A fixing groove 21 is formed on both sides of the upper surface of the washer 20 so that the supporting surface 13 is detachably seated in the through hole 22 so that the body 31 of the bolt 30 is passed through. Is formed.

The washer 20 is first inserted into the body 31 of the bolt 30 penetrating the base material 40 and then the nut member 10 is inserted to insert the first thread 31a and the second thread 11a The nut member 10 and the washer 20 are fixed to each other by the support surface 13 and the fixing groove 21. In this state,

The bolts 30 and the nut member 10 are screwed together until the washer 20 is in contact with the base material 40 so that the bolts 30 and the washer 20 are not separated from each other, 30 is further rotated. At this time, a force that the groove 12 approaches to the direction of the washer 20 is generated, and the arcuate phase of the groove 12 is deformed flat.

Therefore, the first thread 31a and the second thread 11a are more closely adhered to one side, and the threaded state of the bolt 30 and the nut member 10 can be prevented from being loosened or disengaged arbitrarily.

4 is a cross-sectional view of an anti-loose nut according to another embodiment of the present invention. It should be noted that the same reference numerals are used for the same components as the release preventing nut 1 according to the embodiment of the present invention described above.

The nut 1 'according to another embodiment of the present invention is a nut that is screwed to the body 31 of the bolt 30 passed through the base material 40, And a supporting surface 13 is formed on both sides of the groove 12. The support surface 13 is formed on both sides of the groove 12, The nut member 10 is positioned between the nut member 10 and the base material 40. The support surface 13 is integrally fixed to both sides of the upper surface of the nut member 10 and the body 31 of the bolt 30 is fixed at the center. And a washer 20 having a through hole 22 formed therethrough.

The unlocking nut 1 'according to another embodiment of the present invention is different from the nut member 10 and the washer 20 in that the nut member 10 and the washer 20 are integrally formed. The same as the unlocking nut 1 according to the example, and can be sufficiently deduced from the above description, so that redundant description will be omitted for simplification of the description.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. It is not limited.

1,1 ': Loosening nut
10: Nut member
11: Coupling ball
11a: Second thread
12: Home
13: Support surface
20: Washer
21: Fixing groove
22: Through hole
30: Bolt
31: torso
31a: First thread
40: base metal

Claims (2)

delete A nut threaded onto a body of a bolt penetrating a base material,
A nut member having an engaging hole formed at its inner periphery so that the body of the bolt is screwed in the center thereof, an upwardly convex arcuate groove formed at the lower surface thereof, and a support surface formed at both sides of the recess; And
And a washer formed between the nut member and the base material, wherein the support surface is integrally fixed to both sides of the upper surface and the through hole is formed at the center so that the body of the bolt penetrates through the nut.
KR1020150079113A 2015-06-04 2015-06-04 Nut for prevention of looseness KR101675982B1 (en)

Priority Applications (1)

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KR1020150079113A KR101675982B1 (en) 2015-06-04 2015-06-04 Nut for prevention of looseness

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150079113A KR101675982B1 (en) 2015-06-04 2015-06-04 Nut for prevention of looseness

Publications (1)

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KR101675982B1 true KR101675982B1 (en) 2016-11-16

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109139670A (en) * 2018-08-28 2019-01-04 四川中伦精密机械有限公司 Combined type stop nut
CN109441935A (en) * 2018-12-20 2019-03-08 海盐华通金属制品有限公司 A kind of Integral ceiling stop nut
KR20240076136A (en) 2022-11-23 2024-05-30 김정우 Washers and nuts with anti-loosening function for bolts

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5444863U (en) * 1977-09-01 1979-03-28
JPH11280742A (en) * 1998-03-27 1999-10-15 Sanwa Tekki Corp Slipping-out preventive nut
KR100398934B1 (en) 2000-09-26 2003-09-29 김영덕 Nuts having a spring for restraining loose
KR20040056707A (en) 2002-12-24 2004-07-01 홍석용 release prevneting system of bolt and nut with an inward teeth type release preventing unit
KR20100007163U (en) * 2009-01-03 2010-07-13 김법수 . Bolt retaining structure.
KR20110134365A (en) 2011-11-28 2011-12-14 석 규 이 Loosen Anti-Ratched trapezoidal Nuts
JP2013530356A (en) * 2010-05-24 2013-07-25 ゴク イ、ヨン Lock nut and fastening unit including the same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5444863U (en) * 1977-09-01 1979-03-28
JPH11280742A (en) * 1998-03-27 1999-10-15 Sanwa Tekki Corp Slipping-out preventive nut
KR100398934B1 (en) 2000-09-26 2003-09-29 김영덕 Nuts having a spring for restraining loose
KR20040056707A (en) 2002-12-24 2004-07-01 홍석용 release prevneting system of bolt and nut with an inward teeth type release preventing unit
KR20100007163U (en) * 2009-01-03 2010-07-13 김법수 . Bolt retaining structure.
JP2013530356A (en) * 2010-05-24 2013-07-25 ゴク イ、ヨン Lock nut and fastening unit including the same
KR20110134365A (en) 2011-11-28 2011-12-14 석 규 이 Loosen Anti-Ratched trapezoidal Nuts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109139670A (en) * 2018-08-28 2019-01-04 四川中伦精密机械有限公司 Combined type stop nut
CN109441935A (en) * 2018-12-20 2019-03-08 海盐华通金属制品有限公司 A kind of Integral ceiling stop nut
KR20240076136A (en) 2022-11-23 2024-05-30 김정우 Washers and nuts with anti-loosening function for bolts

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