KR20040028198A - Self-locking bolt - Google Patents

Self-locking bolt Download PDF

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Publication number
KR20040028198A
KR20040028198A KR1020020059328A KR20020059328A KR20040028198A KR 20040028198 A KR20040028198 A KR 20040028198A KR 1020020059328 A KR1020020059328 A KR 1020020059328A KR 20020059328 A KR20020059328 A KR 20020059328A KR 20040028198 A KR20040028198 A KR 20040028198A
Authority
KR
South Korea
Prior art keywords
bolt
section
cold welding
thread
cold
Prior art date
Application number
KR1020020059328A
Other languages
Korean (ko)
Inventor
김대중
Original Assignee
현대모비스 주식회사
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 현대모비스 주식회사 filed Critical 현대모비스 주식회사
Priority to KR1020020059328A priority Critical patent/KR20040028198A/en
Publication of KR20040028198A publication Critical patent/KR20040028198A/en

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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
    • F16B39/30—Locking exclusively by special shape of the screw-thread
    • 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
    • F16B11/00—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding
    • F16B11/004—Connecting constructional elements or machine parts by sticking or pressing them together, e.g. cold pressure welding by cold pressure welding

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

Abstract

PURPOSE: A self-locking bolt is provided to reduce the number of parts of a bolt assembly while reducing a manufacturing cost by installing a self-locking unit in a bolt. CONSTITUTION: A bolt(10) includes a bolt head section(20) and a screw section(21). A cold welding screw section(22) is formed at an end portion of the screw section(21). A stud section(23) is formed between the bolt head section(20) and the cold welding screw section(22). When coupling the bolt(10) with a structure, the cold welding screw section(21) makes contact with the structure, thereby preventing the bolt(10) from being released from the structure. Selectively, the cold welding screw section(21) is directly formed below the bolt head section(20) without forming the stud section(23).

Description

풀림방지 볼트{Self-locking bolt}Self-locking bolt

본 발명은 볼트가 체결된 후에 볼트의 풀림이 방지되는 풀림 방지 볼트에 관한 것으로, 구체적으로 볼트 체결시 체결압에 의해 볼트 나사산의 일부가 냉간용접되어 볼트의 풀림이 방지되는 볼트에 관한 것이다.The present invention relates to an anti-loosening bolt in which the bolt is prevented from loosening after the bolt is fastened. More particularly, the present invention relates to a bolt in which a part of the bolt thread is cold welded by the fastening pressure to prevent the bolt from loosening.

종래에 볼트 체결 후에 진동이나 하중의 변화에 의하여 볼트가 풀리는 문제점이 있었고, 이 때문에 스프링 와셔 또는 특수 형상의 와셔가 사용되어 볼트의 풀림이 방지되었다. 또는 핀, 작은 나사 또는 멈춤쇠와 같은 별도의 부품이 사용되어 볼트의 풀림이 방지되었다. 그러나, 부품수가 증가되고 볼트의 풀림방지장치가 복잡하고 중량 및 원가가 상승되는 문제점이 있었다.Conventionally, there is a problem in that the bolt is loosened due to the vibration or the change of the load after the bolt is fastened, and thus a spring washer or a specially-shaped washer is used to prevent the bolt from loosening. Alternatively, separate parts such as pins, small screws, or detents are used to prevent the bolts from loosening. However, there is a problem that the number of parts is increased, the bolt loosening prevention device is complicated and the weight and cost are increased.

상기와 같은 종래의 문제점 등을 해결하기 위하여 안출된 것으로서, 본 발명의 목적은 볼트 자체에 풀림방지 장치가 설치되어 부품수가 적고 중량 및 비용도 저렴한 풀림방지 볼트를 제공하는 것이다.In order to solve the conventional problems as described above, an object of the present invention is to provide an anti-loosening bolt having a low number of parts, low weight and cost by installing the anti-loosening device in the bolt itself.

도1은 본 발명의 실시예1에 의한 풀림방지 볼트의 사시도이다.1 is a perspective view of a loosening bolt according to a first embodiment of the present invention.

도2는 도1의 A부 상세도이다.FIG. 2 is a detailed view of portion A of FIG. 1. FIG.

도3은 본 발명의 실시예2에 의한 풀림방지 볼트의 사시도이다.3 is a perspective view of the loosening bolt according to the second embodiment of the present invention.

*도면의 주요기호에 대한 간략한 설명** Brief description of the major symbols in the drawings *

10...볼트,10 ...

20...볼트머리, 21...나사산부, 22...냉간용접 나사산부, 23...스터드부,20 bolt head, 21 thread thread, 22 cold weld thread, 23 stud part,

D2... 냉간용접 나사산부 바깥지름, D1....나사산부 바깥지름.D 2 ... outside diameter of cold weld thread, D 1 .... outside diameter of thread.

상기한 본 발명의 목적이 달성되도록, 본 발명은 볼트머리쪽 나사산부 끝부분에 위치되며 바깥지름이 상기 나사산부의 바깥지름보다 크고 체결압에 냉간용접되는 냉간용접 나사산부를 포함한다.In order to achieve the above object of the present invention, the present invention includes a cold welding screw thread which is located at the end of the bolt head threaded portion and whose outer diameter is larger than the outer diameter of the screw portion, which is cold welded to the clamping pressure.

이하, 첨부도면을 참조하여 본 발명의 바람직한 실시예를 구체적으로 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도1 및 도2에 도시되듯이, 본 발명의 실시예1에 의한 풀림방지 볼트(10)는 일반적인 나사산의 끝부분에 바깥지름이 보다 큰 냉간용접 나사산부(22)가 형성되어, 볼트 체결시 냉간용접되어 영구적으로 볼트가 구조물에 체결된다.1 and 2, the anti-loosening bolt 10 according to the first embodiment of the present invention has a cold welding screw thread 22 having a larger outer diameter at the end of a general thread, when the bolt is fastened Cold welding permanently bolts the structure.

볼트(10)는 볼트머리(20)와 나사산부(21)로 이루어져 있고, 상기 나사산부(21)의 끝부분에는 바깥지름이 보다 큰 냉간용접 나사산부(22)가 형성되고, 스터드부(23)가 상기 볼트머리(20)와 냉간용접 나사산부(22) 사이에 나사산이 없는 형태로 형성되어, 볼트 체결시에 상기 냉간용접 나사산부(22)와 구조물(도시안됨)이 바깥지름의 차이만큼 서로 맞닿고 체결압에 의해 구조물과 냉간용접 또는 압접되어 볼트(10)의 풀림이 방지된다. 경우에 따라서는 상기 냉간용접 나사산부(22)의 나사산은 1개 또는 360°이하로 형성될 수 있다. 일반적으로 냉간 용접 또는 고상 용접은 엄밀한 의미에서 전기 용접과 다르지만, 2개의 깨끗하고 매끗한 금속면을 원자와 원자의 인력이 작용할 수 있는 거리에 위치시키고 기계적으로 밀착하면 용접되는 것으로, 롤 용접, 열간 압접, 마찰 용접, 폭발 용접, 초음파 용접 등이 있다.The bolt 10 is composed of a bolt head 20 and the threaded portion 21, the cold welding threaded portion 22 having a larger outer diameter is formed at the end of the threaded portion 21, the stud portion 23 ) Is formed without a thread between the bolt head 20 and the cold welding screw thread 22, the cold welding screw thread 22 and the structure (not shown) by the difference in the outer diameter at the time of bolt fastening Abutting against each other and cold welding or press welding with the structure by the fastening pressure is prevented from loosening the bolt (10). In some cases, the thread of the cold welding screw thread 22 may be formed in one or less than 360 °. In general, cold welding or solid state welding differs from electric welding in a strict sense, but two clean and clean metal surfaces are placed at a distance where atoms and atomic attraction can act and are welded when they are in close mechanical contact. Pressure welding, friction welding, explosion welding, ultrasonic welding, and the like.

도3에는 본 발명의 실시예2가 도시되어 있다. 실시예1과 달리 스터드부(23)가 없고 볼트머리(20)의 바로 아래에 냉간용접 나사산부(22)가 위치되며, 그 외는 실시예1과 동일하게 볼트 체결시에 상기 냉간용접 나사산부(22)와 구조물(도시안됨)이 바깥지름의 차이만큼 서로 맞닿고 체결압에 의해 냉간용접 또는 압접되어 볼트(10)의 풀림이 방지된다.3 shows Embodiment 2 of the present invention. Unlike Example 1, there is no stud portion 23, and the cold welding screw thread 22 is positioned directly under the bolt head 20. The other cold welding screw thread (when tightening the bolt is the same as in Example 1). 22) and the structure (not shown) abut each other by the difference in the outer diameter and cold welding or press welding by the fastening pressure is prevented from loosening the bolt (10).

상기와 같이 구성되는 본 발명은 볼트 자체에 냉간용접 나사산부가 설치되어 부품수가 적고 중량 및 비용도 저렴한 작용효과가 있다.The present invention configured as described above has a cold welding screw thread is installed on the bolt itself has a small number of parts, weight and cost is also low cost effect.

Claims (2)

볼트머리쪽 나사산부 끝부분에 위치되며 바깥지름이 상기 나사산부의 바깥지름보다 크고 체결압에 냉간용접되는 냉간용접 나사산부를 포함하는 것을 특징으로 하는 풀림방지 볼트.Loosen-proof bolt located on the end of the bolt head thread portion, characterized in that the outer diameter is larger than the outer diameter of the thread portion and comprises a cold welding thread cold welding to the fastening pressure. 제1항에 있어서, 상기 볼트머리와 냉간용접 나사산부 사이에 나사산이 형성되지 않은 스터드부가 형성되어 있는 것을 특징으로 하는 풀림방지 볼트.2. The bolt of claim 1, wherein a stud portion in which no thread is formed is formed between the bolt head and the cold welded thread portion.
KR1020020059328A 2002-09-30 2002-09-30 Self-locking bolt KR20040028198A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020020059328A KR20040028198A (en) 2002-09-30 2002-09-30 Self-locking bolt

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Application Number Priority Date Filing Date Title
KR1020020059328A KR20040028198A (en) 2002-09-30 2002-09-30 Self-locking bolt

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KR20040028198A true KR20040028198A (en) 2004-04-03

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684304A (en) * 1986-04-24 1987-08-04 Hitco Composite stud
JPS63157818A (en) * 1986-12-19 1988-06-30 Ishikawajima Harima Heavy Ind Co Ltd Heat treatment of thread part
KR960037894U (en) * 1995-05-24 1996-12-18 Weld stud structure
JP2001208026A (en) * 2000-01-31 2001-08-03 Nippon Stud Welding Co Ltd Coupling device and composite bolt

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4684304A (en) * 1986-04-24 1987-08-04 Hitco Composite stud
JPS63157818A (en) * 1986-12-19 1988-06-30 Ishikawajima Harima Heavy Ind Co Ltd Heat treatment of thread part
KR960037894U (en) * 1995-05-24 1996-12-18 Weld stud structure
JP2001208026A (en) * 2000-01-31 2001-08-03 Nippon Stud Welding Co Ltd Coupling device and composite bolt

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