KR20000020723U - Bolt having prevention removing function - Google Patents
Bolt having prevention removing function Download PDFInfo
- Publication number
- KR20000020723U KR20000020723U KR2019990008099U KR19990008099U KR20000020723U KR 20000020723 U KR20000020723 U KR 20000020723U KR 2019990008099 U KR2019990008099 U KR 2019990008099U KR 19990008099 U KR19990008099 U KR 19990008099U KR 20000020723 U KR20000020723 U KR 20000020723U
- Authority
- KR
- South Korea
- Prior art keywords
- bolt
- head portion
- loosening
- parts
- present
- Prior art date
Links
- 230000002265 prevention Effects 0.000 title description 4
- 238000000034 method Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
본 고안은 구조가 단순하고 별도의 부품의 소요없이 자체 구조만으로 풀림이 방지되도록 나사산부와 다각형 헤드부를 구비하고 있는 보울트의 다각형 헤드부 외면에 살두께를 얇게 만드는 요홈이 형성되어 있는 것을 특징으로 한다.The present invention is characterized in that the groove is formed on the outer surface of the polygon head portion of the bolt having a threaded portion and a polygonal head portion so that the structure is simple and prevents loosening only by its own structure without the need for a separate part. .
Description
본 고안은 부품에의 체결시 풀림이 방지되는 보울트에 관한 것이다.The present invention relates to a bolt that is prevented from loosening upon fastening to a part.
두개의 부품을 고정시키기 위하여는 도 5에 도시하는 것과 같이 나사산(11)을 갖는 보울트(12)가 사용되고 있다.To fix the two parts, a bolt 12 having a thread 11 is used as shown in FIG.
그런데 보울트(12)가 체결되는 부품(13)(14)들에 진동이 가해지는 경우 시간이 지남에 따라 나사산 사이의 마찰력이 저하되어 풀림이 일어나게 된다.However, when vibration is applied to the parts 13 and 14 to which the bolt 12 is fastened, frictional force between threads decreases as time passes, and loosening occurs.
따라서 보울트의 체결력이 지속적으로 작용하도록 풀림방지 수단을 채용하고 있는바 도시한 것과 같이 보울트 헤드부(15)와 부품(13)의 안착면 사이에 탄성력을 갖도록 절개된 양단부가 상하로 비틀어진 스프링 와셔(16)를 개재시켜 놓으면 보울트(12)의 조임시 스프링 와셔(16)가 변형되면서 내부에 축적된 탄성력이 반발력으로 작용하여 보울트 헤드부(15)를 조임 방향과는 반대 방향으로 밀어내게 되어 나사산(11)의 마찰력을 높이므로써 풀림이 발생하지 않게 되는 것이다.Therefore, the spring washer with both ends twisted up and down to have elastic force between the bolt head 15 and the seating surface of the part 13, as shown in the figure, employing an anti-loosening means to continuously operate the bolting force. If the spring 16 is interposed, the spring washer 16 deforms during tightening of the bolt 12, and the elastic force accumulated therein acts as a repulsive force to push the bolt head portion 15 in a direction opposite to the tightening direction, thereby By increasing the frictional force of (11), loosening does not occur.
그러나 상기한 보울트의 풀림 방지 구성에 의하면 스프링 와셔의 사용으로 부품의 사용이 증대되고, 부품의 관리 및 조립 공정수의 증가를 가져와 비용 상승의 요인이 되며, 스프링 와셔의 불량으로 보울트가 풀릴 가능성이 있어 품질의 유지가 곤란하다는 문제점이 있다.However, according to the above-described anti-loosening configuration of the bolts, the use of the spring washer increases the use of parts, increases the number of parts management and assembly processes, and increases the cost, and it is possible that the bolts are loosened due to the failure of the spring washers. There is a problem that it is difficult to maintain the quality.
이에 본 고안은 상기한 점을 감안하여 제안한 것으로서 그의 목적으로 하는 것은 구조가 단순하고 별도의 부품의 소요없이 자체 구조만으로 풀림이 방지되는 보울트를 제공하는 데 있다.The present invention has been proposed in view of the above point, and its object is to provide a bolt whose structure is simple and prevents loosening with only its own structure without the need for separate parts.
상기한 목적을 달성하기 위하여 본 고안은 부품을 체결하기 위한 나사산부와 다각형 헤드부를 구비하고 있는 보울트에 있어서, 상기 다각형 헤드부의 외면에 살두께를 얇게 만드는 요홈이 형성되어 있는 것을 특징으로 한다.In order to achieve the above object, the present invention is a bolt having a threaded portion and a polygonal head for fastening parts, characterized in that the groove is formed on the outer surface of the polygonal head portion to make the thickness thin.
도 1은 본 고안에 의한 풀림방지 보울트를 나타내는 정단면도1 is a front sectional view showing a loosening bolt according to the present invention
도 2는 본 고안 보울트의 변형된 실시예를 나타내는 도면2 is a view showing a modified embodiment of the invented bolt
도 3은 본 고안 헤드부에 토오크를 가할때 발생하는 반력을 설명하기 위한 도면3 is a view for explaining the reaction force generated when applying a torque to the head of the subject innovation
도 4는 본 고안 헤드부에 충분한 조임력이 작용하여 벤딩된 상태를 나타내는 상태도4 is a state diagram showing a state in which a sufficient tightening force is applied to the head of the present invention bent
도 5는 종래기술을 나타낸 볼트 결합 상태를 나타낸 단면도이다.5 is a cross-sectional view showing a bolt coupling state showing the prior art.
※ 도면의 주요 부분에 대한 부호의 설명※ Explanation of codes for main parts of drawing
1 : 보울트 2, 3 : 체결될 부품1: Bolt 2, 3: Parts to be fastened
4 : 나사산부 5 : 헤드부4 thread portion 5 head portion
6 : 표면 7 : 요홈6: surface 7: groove
8 : 만곡홈8: curved groove
이하 본 고안의 구성과 작용을 첨부한 도면을 참조하여 설명한다.Hereinafter, with reference to the accompanying drawings the configuration and operation of the present invention.
도 1과 도 2는 본 고안에 의한 풀림 방지 보울트를 나태는 도면이며, 도 3은 본고안 보울트의 조임시 발생하는 반력을 설명하는 도면이고, 도 4는 본 고안 보울트 헤드부의 변형에 의한 풀림방지를 설명하기 위한 도면이다.1 and 2 is a view showing a loosening prevention bolt according to the present invention, Figure 3 is a view illustrating the reaction force generated when tightening the bolt of the present design, Figure 4 is a loosening prevention by deformation of the bolt head of the present invention A diagram for explaining.
도면에 있어서 보울트(1)는 두개의 부품(2)(3)을 체결하여 고정하는 나사산부(4)와, 스패너등의 공구를 사용하여 조임력을 가하는 헤드부(5)와, 그 헤드부(5)의 외면(6)에 형성한 요홈(7)을 구비하고 있다.In the drawing, the bolt 1 includes a threaded portion 4 for fastening and fixing two parts 2 and 3, a head portion 5 for applying a tightening force using a tool such as a spanner, and the head portion ( The groove 7 formed in the outer surface 6 of 5) is provided.
상기 요홈(7)은 헤드부(5)의 살두께를 감소시키도록 반구형으로 형성되거나 또는 헤드부(5)가 육각 또는 4각일때 그 형상과 동일하게 형성될 수 있다.The groove 7 may be formed in a hemispherical shape so as to reduce the flesh thickness of the head portion 5 or may be formed in the same shape as the head portion 5 is hexagonal or quadrilateral.
그리고 헤드부(5)의 부품(2)에의 접촉면에도 도 2와 같이 상부로 오목한 만곡홈(8)을 형성할 경우 탄발력을 더욱 증대시키는 것이 가능하다.In addition, when the curved groove 8 concave upward, as shown in Fig. 2, is also formed on the contact surface of the head 5 to the component 2, it is possible to further increase the resilience.
이와같은 본 고안은 스패너로 헤드부(5)를 부품(2)(3)에 조여붙이면 도3에서와 같이 토크(torque)작용에 대항 하여 부품(2)으로부터 반발력이 작용한다.In the present invention, when the head portion 5 is fastened to the parts 2 and 3 with a spanner, the repulsive force acts from the parts 2 against the torque action as shown in FIG.
이에따라 보울트(1)를 완전히 조여붙이게 되면 요홈(7)에 의해 살두께가 얇아진 헤드부(5)가 부품(2)으로부터 작용하는 벤딩 모우먼트에 의해 도4와 같이 변형(Bending 변형)되어지며, 이때의 반발력(Bending moment)에 의해 나사산부(4)의 마찰력이 증대되므로 보울트(1)의 풀림이 방지되는 것이다.Accordingly, when the bolt 1 is completely tightened, the head portion 5 thinned by the groove 7 is deformed (bending deformation) by a bending moment acting from the part 2, Since the friction force of the threaded portion 4 is increased by the bending moment at this time, the loosening of the bolt 1 is prevented.
즉, 헤드부(5)의 굽힘 변형이 스프링 와셔와 같은 역활을 하여 보울트가 풀리지 않게 되는 것이다.That is, the bending deformation of the head portion 5 serves as a spring washer so that the bolt is not loosened.
이상과 같은 본 고안은 보울트의 헤드부에 요홈을 형성하여 조임력에 의해 변형이 가능토록 살두께를 감소시키므로써, 부품에의 체결시 헤드부가 굽힘 변형되면서 탄성력이 발생하고, 반대로 부품측에서는 반력이 발생하여 나사산부의 마찰력을 증대시켜 풀림이 방지되는 효과가 있어 풀림 방지를 위한 별도 부품의 소요없이 보울트 자체 구조만으로 풀림 방지 기능을 할 수 있다.The present invention as described above forms a groove in the head portion of the bolt to reduce the thickness of the skin so that it can be deformed by the tightening force, the elastic force is generated as the head portion is bent and deformed when fastening to the part, on the contrary, the reaction force is generated on the part side Therefore, it is possible to prevent loosening by increasing the frictional force of the threaded portion, so the loosening prevention function can be performed only by the bolt's own structure without the need for separate parts to prevent loosening.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019990008099U KR20000020723U (en) | 1999-05-13 | 1999-05-13 | Bolt having prevention removing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019990008099U KR20000020723U (en) | 1999-05-13 | 1999-05-13 | Bolt having prevention removing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20000020723U true KR20000020723U (en) | 2000-12-15 |
Family
ID=54762759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019990008099U KR20000020723U (en) | 1999-05-13 | 1999-05-13 | Bolt having prevention removing function |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR20000020723U (en) |
-
1999
- 1999-05-13 KR KR2019990008099U patent/KR20000020723U/en not_active Application Discontinuation
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| E601 | Decision to refuse application |