KR200469132Y1 - Safe lock nut - Google Patents

Safe lock nut Download PDF

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Publication number
KR200469132Y1
KR200469132Y1 KR2020130003389U KR20130003389U KR200469132Y1 KR 200469132 Y1 KR200469132 Y1 KR 200469132Y1 KR 2020130003389 U KR2020130003389 U KR 2020130003389U KR 20130003389 U KR20130003389 U KR 20130003389U KR 200469132 Y1 KR200469132 Y1 KR 200469132Y1
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KR
South Korea
Prior art keywords
nut
wedge
bolt
force
safe lock
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KR2020130003389U
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Korean (ko)
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황인성
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이진숙
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Priority to KR2020130003389U priority Critical patent/KR200469132Y1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/02Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/12Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
    • F16B39/126Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts causing radial forces on the bolt-shaft
    • F16B39/128Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts causing radial forces on the bolt-shaft by means of eccentrical or spiral interengaging parts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/02Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/023Locking of screws, bolts or nuts in which the locking takes place after screwing down by driving a conic or wedge-shaped expander through the threaded element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28Locking 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
    • F16B39/284Locking by means of elastic deformation

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Abstract

본 발명은 볼트에 하너트와 상너트로 체결되는 2중 너트이며, 하너트에 돌출 형성된 쇄기부는 안팎 간 두께가 다르게 형성되며, 두꺼운 쇄기부와 중심선 사이에 2개의 절개부가 형성되어 쇄기작용과 탄성작용에 의해 강하고 안전한 체결상태를 유지시켜주는 세이프 락 너트(safe lock nut)에 관한 것이다. The present invention is a double nut that is fastened to the bolts with a nut and a nut, and the wedge portion protruding from the nut has a different thickness between the inside and the outside, and two incisions are formed between the thick wedge portion and the center line. The present invention relates to a safe lock nut that maintains a strong and secure fastening state by elastic action.

Description

세이프 락 너트{Safe lock nut}Safe lock nut {Safe lock nut}

본 발명은 볼트에 상너트와 하너트의 2중 너트로 체결하는 세이프 락 너트(safe lock nut)에 관한 것으로, 하너트와 상너트는 쇄기부와 쇄기홀로 결합하며, 하너트의 쇄기홀은 안팎 간 두께를 편심으로 가공하여 상너트와 하너트의 체결시 쇄기역할을 하도록 하면서 쇄기부에 다수의 절개부를 형성함으로써 쇄기부의 한 곳에 집중되던 힘을 분산시켜 볼트파손의 우려가 없도록 한 것이다. The present invention relates to a safe lock nut that is fastened to a bolt by a double nut of a nut and a nut, and the nut and the nut are combined with a wedge and a wedge, and the wedge of the nut is inside or outside. The thickness of the liver is processed eccentrically to play a role of a wedge when the upper nut and the harnut are fastened, and a plurality of incisions are formed in the wedge to disperse the force concentrated in the wedge so that there is no fear of bolt breakage.

종래 상너트와 하너트의 2중 너트로서 하너트에 쇄기부를 돌출 형성되고 쇄기부 안팎 간 두께를 다르게 형성한 것이 사용되고 있었으나 상너트의 죄는 힘이 쇄기부의 가장 두꺼운 부분의 한 곳에 집중되어 볼트가 파손될 우려가 있었다.       Conventionally, the double nut of the upper nut and the lower nut was used to protrude the wedge into the nut and to form a thickness between the inside and the outside of the nut, but the clamping force of the nut is concentrated in one of the thickest parts of the wedge. There was a risk of breakage.

따라서 2중 구조너트로서 쇄기작용에 의해 강한 체결상태를 유지하면서도 큰 힘으로 상너트를 죄더라도 볼트 파손의 우려가 없는 안전한 체결너트 즉, 세이프 락 너트의 필요성이 있다.Therefore, there is a need for a safe locking nut, that is, a safe lock nut, which does not have a risk of bolt breakage even if the upper nut is tightened while maintaining a strong fastening state by a wedge action as a double structure nut.

본 발명은 볼트에 체결된 하너트 상에 상너트를 죄면 하너트의 쇄기부에 의한 쇄기작용으로 강한 체결상태를 유지되게 하면서 동시에 하너트의 돌출부분을 절개함으로써 쇄기부의 가장 두꺼운 부분 한 곳에 집중되던 힘을 분산시켜 볼트의 파손우려가 없는 세이프 락 너트의 도출을 과제로 한다.The present invention focuses on the thickest part of the wedge by cutting the upper part of the nut while maintaining the strong fastening state by the wedge action of the wedge of the nut when the upper nut is tightened on the nut fastened to the bolt. The task is to derive the safe lock nut without fear of bolt breakage by distributing the force.

도2에서 하너트(2)에 돌출 형성되어 있는 쇄기부(4)는 안팎 간 두께가 얇은 부분과 두꺼운 부분으로 이루어져 있으며, 볼트에 하너트(2)를 체결하고 그 위에 상너트(1)를 죄게 되면 상너트의 쇄기홀(5) 표면은 하너트(2)의 쇄기부에서 가장 두꺼운 부분에 접촉하여 집중적으로 힘을 가하게 된다. 이때 쇄기부의 가장 두꺼운 부분은 마치 쇄기와 같은 장용을 함으로써 하너트(2)가 볼트로부터 풀리지 않도록 만든다.
In FIG. 2, the wedge portion 4 protruding from the nut 2 consists of a thin portion and a thick portion between the inside and the outside, and fastens the nut 2 to the bolt and the upper nut 1 thereon. When tightened, the surface of the wedge hole 5 of the upper nut contacts the thickest part of the wedge portion of the nut 2 to intensively apply force. At this time, the thickest part of the wedge portion is made to be worn like a wedge so that the nut 2 is not loosened from the bolt.

도3에서 보는 바와 같이, 돌출 형성된 쇄기부(4)에는 6개의 절개부(15)가 쇄기부를 절개하고 있다. 도4에서는 2개의 절개부(15)가 쇄기부(4)의 두꺼운 쪽에 치우쳐 쇄기부를 절개하고 있다. 이러한 절개부(15)는 상너트를 죄면 쇄기부의 가장 두꺼운 한 점에 집중 작용하던 힘을 분산시키는 역할을 하면서 동시에 절개부를 꽉 죄는 역할을 하게 된다.
As shown in Fig. 3, six cutouts 15 are cut in the protrudingly formed wedge portion 4. In Fig. 4, the two cutouts 15 are biased toward the thicker side of the wedge 4 to cut the wedges. The incision 15 serves to disperse the force that is concentrated on the thickest point of the wedge when the upper nut is tightened, and at the same time, to tighten the incision.

이와 같이 쇄기부를 여러조각으로 절개한 것은 상너트를 죄면 힘이 쇄기부의 가장 두꺼운 부분에 집중되는 것을 피하고 힘을 분산시켜 볼트산에 나누어 힘이 작용하도록 하기 위한 것이다.
In this way, the cutting part is cut into pieces to prevent the force from being concentrated on the thickest part of the writing part when the nut is tightened, and the force is distributed to divide the bolt into the bolt.

도4는 하너트에서 중심선과 두꺼운 쇄기부 사이의 쇄기부에 2개의 절개부를 형성한 것이다. 하너트의 두꺼운 쇄기부의 두께(H)는 얇은 쇄기부의 두께(h) 보다 쇄기부의 두께가 더 두껍게 형성된 것으로, 하너트의 쇄기부를 덮어서 상너트가 체결되면 상너트가 쇄기부를 죄는 힘은 두꺼운 쇄기부의 한 점에 집중적으로 작용함으로써 두꺼운 쇄기부와 볼트가 집중되는 힘에 의해 압착되어 강한 체결상태를 가져온다. 또한 과도하게 쇄기부의 한 점에 힘이 집중되어 너트가 파손되는 일이 일어나는 것을 본 발명의 절개부는 힘의 분산에 의해 파손을 방지하는 역할을 하기도 한다.
4 shows two cutouts in the wedge between the centerline and the thick wedge in the nut. The thickness (H) of the thick nut part of the harnut is formed to be thicker than the thickness h of the thin part of the nut part. The force acts intensively on one point of the thick wedge, so that the thick wedge and the bolt are compressed by the concentrated force, resulting in a strong fastening state. In addition, the cutting portion of the present invention that the force is concentrated on one point of the wedge portion to break the nut also serves to prevent the breakage by the dispersion of the force.

따라서 본 발명은 과도한 힘의 집중으로 너트 파손을 방지하면서 동시에 강한 체결상태를 가져오는 것이다.Therefore, the present invention is to prevent the nut breakage due to excessive concentration of force and bring a strong fastening state at the same time.

본 발명의 세이프 락 너트는 두꺼운 쇄기부와 중심선 사이에 2개의 절개부를 쇄기부 상에 형성함으로써 쇄기작용에 의한 강한 체결상태를 유지함과 동시에 절개부 형성으로 인한 힘의 분산작용으로 너트 파손을 방지하면서 안전한 체결상태를 유지시켜 주는 효과가 있다.The safe lock nut of the present invention maintains a strong fastening state due to a wedge action by forming two cutouts between a thick wedge portion and a centerline on the wedge portion, while preventing nut breakage by dispersing force due to the incision formation. It is effective in maintaining a secure fastening state.

도1은 본 발명의 상너트, 하너트 및 볼트의 구조를 나타내고 있는 사시도이다.
도2는 본 발명의 하너트에 대한 사시도이다.
도3은 본 발명의 일 실시예로서 6개의 절개부를 가진 하너트의 단면도이다.
도4는 본 발명의 일 실시예로서 2개의 절개부를 가진 하너트의 단면도이다.
1 is a perspective view showing the structure of the upper nut, the lower nut and the bolt of the present invention.
Fig. 2 is a perspective view of a harnut of the present invention.
3 is a cross-sectional view of a nut having six cuts as an embodiment of the present invention.
4 is a cross-sectional view of a nut having two cutouts as an embodiment of the present invention.

도1은 볼트(3)와 볼트(3)에 체결되는 하너트(2)와 상너트(1)의 구조을 보여주는 도면이다. 볼트(3)에 체결대상(미도시)을 끼우고 하너트(2)을 체결한다. 이때 체결대상에 대해 필요한 만큼 체결한다. 하너트(2)에 돌출 형성된 쇄기부(4)는 상너트(1)를 향하게 되며, 상너트(1)를 죄면 상너트(1)에 형성된 쇄기홀(5)에 하너트(2)의 쇄기부(4)가 들어가게 된다. 상너트(1)를 죄면 상너트의 쇄기홀(5) 표면에 쇄기부의 가장 두꺼운 부분이 접촉하여 이곳에 힘이 집중 작용하게 된다. 더욱 상너트를 죄게 되면 쇄기부의 절개부(15)가 좁혀지면서 힘이 어느 정도 분산되는 효과를 가지면서 수나사부(9)를 죄게 된다.
FIG. 1 is a view showing the structure of a nut 3 and a nut 3 fastened to the bolt 3 and the bolt 3. Insert the fastening object (not shown) to the bolt (3) and fasten the nut (2). At this time, fasten as necessary for the fastening target. The wedge portion 4 protruding from the nut 2 faces the nut 1, and when the nut is tightened, the chain of the nut 2 is inserted into the wedge hole 5 formed in the nut 1. The base 4 will enter. When the upper nut (1) is tightened, the thickest part of the wedge portion contacts the surface of the wedge hole 5 of the upper nut, whereby the force is concentrated. When the upper nut is further tightened, the cutout portion 15 of the wedge is narrowed, and the male screw portion 9 is clamped while the force is distributed to some extent.

도2는 하너트(2)를 나타내고 있다. 돌출부는 안팎 간 두께가 가장 얇은 부분에서 점점 두꺼워지기 시작하여 그 반대쪽은 가장 두꺼운 부분이 된다. 도3에서 쇄기부(4)에는 6개의 절개부(15)가 대칭적으로 형성되어 있다.

도4에는 중심선과 두꺼운 쇄기부 사이의 쇄기부 상에 2개의 절개부(15)가 형성된 것이다. 절개부는 강철 와이어를 마찰시켜 절개하기 때문에 짝수의 절개부를 형성하게 된다. 물론 홀수개의 절개부도 만들 수는 있으나 대량생산에 기술적 어려움이 있다.
2 shows the nut 2. The protrusions begin to get thicker at the thinnest part inside and out, and the thickest part on the opposite side. In Fig. 3, six cutouts 15 are symmetrically formed in the wedge 4.

4, two cutouts 15 are formed on the wedge portion between the centerline and the thick wedge portion. The incision makes an even number of incisions because the incision cuts the steel wire. Of course, an odd number of incisions can be made, but there are technical difficulties in mass production.

상너트(1)와 하너트(2)를 독립적으로 서로 끼우면 하너트(2)의 쇄기부(4)는 상너트(1)의 쇄기홀(5)에 아무런 저항을 받지 않고 잘 들어간다. 그러나 볼트에 채워 체결된 하너트(2)에 상너트를 조이게 되면 쇄기부(4)의 두꺼운 부분이 집중적으로 힘을 받아 쇄기작용을 하게되어 강한 체결상태를 유지하게 된다.
When the upper nut 1 and the lower nut 2 are independently inserted into each other, the wedge portion 4 of the lower nut 2 enters the wedge hole 5 of the upper nut 1 without any resistance. However, when the upper nut is tightened to the nut 2 fastened to the bolt, the thick portion of the wedge 4 receives the concentrated force to act as a wedge to maintain a strong fastening state.

종래 쇄기부에 절개부가 없는 경우는 상너트를 죄면 쇄기부의 가장 두꺼운 부분에만 힘이 집중되고, 그것은 볼트의 수나사부의 한 점에 힘이 집중됨으로써 더욱 강하게 죄면 볼트가 파손될 우려가 있었다. 이러한 문제점에 착안하여 본 발명에서는 쇄기부에 다수 절개부를 형성함으로써 힘을 분산시키면서 볼트의 수나사부를 더욱 효과적으로 잡아주도록 하였다.
In the case where there is no incision in the conventional wedge portion, when the upper nut is tightened, the force is concentrated only on the thickest portion of the wedge portion, and the force is concentrated at one point of the male threaded portion of the bolt, which may cause the bolt to be broken more strongly. In view of the above problems, in the present invention, a plurality of cutouts are formed in the wedges to more effectively hold the male threads of the bolt while dispersing the force.

도4에서 두꺼운 쇄기부의 두께(H)는 얇은 쇄기부 두께(h) 보다 두껍게 형성되며, 상너트가 하너트의 쇄기부를 덮어서 체결되면 쇄기홀(5) 내면은 두꺼운 쇄기부에 접촉하여 두꺼운 쇄기부에 힘이 집중되고, 얇은 쇄기부는 상너트의 쇄기홀(5) 내면에 닿지 않거나 거의 닿지 않을 정도이다.In FIG. 4, the thickness H of the thick wedge portion is formed to be thicker than the thickness h of the thin wedge portion, and when the upper nut is fastened to cover the wedge portion of the nut, the inner surface of the wedge hole 5 contacts the thick wedge portion. The force is concentrated on the wedge portion, and the thin wedge portion is hardly or hardly touching the inner surface of the wedge hole 5 of the upper nut.

1:상너트 2:하너트 3:볼트 4:쇄기부 5:쇄기홀 7,8:암나사부 9:수나사부 10:헤드 11:나사축 15:절개부DESCRIPTION OF SYMBOLS 1: Upper nut 2: Hannut 3: Bolt 4: Wedge part 5: Wedge hole 7,8: Female threaded part 9: Male threaded part 10: Head 11: Screw shaft 15: Incision part

Claims (2)

삭제delete 볼트(3)에 체결되는 두께의 차이가 있는 쇄기부(4)를 가진 하너트(2), 하너트(2)의 쇄기부(4)를 덮어서 체결되는 상너트(1)로 이루어지는 체결기구에 있어서, 중심선과 두꺼운 쇄기부 사이의 쇄기부(4) 상에 2개의 절개부(15)가 형성된 것을특징으로 하는 세이프 락 너트.To a fastening mechanism comprising a nut (1) having a wedge (4) with a difference in thickness fastened to the bolt (3), and an upper nut (1) covering the wedge (4) of the nut (2). A safe lock nut, characterized in that two cutouts (15) are formed on a wedge (4) between a centerline and a thick wedge.
KR2020130003389U 2013-04-30 2013-04-30 Safe lock nut KR200469132Y1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10200276A (en) * 1997-01-09 1998-07-31 Fujitsu Denso Ltd Screw for fixing printed wiring boards
JP2004340165A (en) 2003-05-13 2004-12-02 Fusao Yamada Slack preventive fastener
JP2008309202A (en) 2007-06-12 2008-12-25 Nobuhiko Futagawa Locking nut
JP2011017352A (en) 2009-07-07 2011-01-27 Shohei Yajima Locking nut

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10200276A (en) * 1997-01-09 1998-07-31 Fujitsu Denso Ltd Screw for fixing printed wiring boards
JP2004340165A (en) 2003-05-13 2004-12-02 Fusao Yamada Slack preventive fastener
JP2008309202A (en) 2007-06-12 2008-12-25 Nobuhiko Futagawa Locking nut
JP2011017352A (en) 2009-07-07 2011-01-27 Shohei Yajima Locking nut

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