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KR20170069469A - Locking bolt having different slope of screw mountain on the part of circumferential range - Google Patents

Locking bolt having different slope of screw mountain on the part of circumferential range Download PDF

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Publication number
KR20170069469A
KR20170069469A KR1020150176691A KR20150176691A KR20170069469A KR 20170069469 A KR20170069469 A KR 20170069469A KR 1020150176691 A KR1020150176691 A KR 1020150176691A KR 20150176691 A KR20150176691 A KR 20150176691A KR 20170069469 A KR20170069469 A KR 20170069469A
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South Korea
Prior art keywords
bolt
threaded portion
thread
threaded
present
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Korean (ko)
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정연홍
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정연홍
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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
    • F16B39/22Locking 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
    • F16B39/30Locking exclusively by special shape of the screw-thread
    • 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
    • F16B33/00Features common to bolt and nut
    • F16B33/02Shape of thread; Special thread-forms
    • 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
    • F16B35/00Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04Screw-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
    • F16B35/041Specially-shaped shafts

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

Abstract

본 발명은 나사산이 형성된 볼트에 있어서, 나사부의 원주구간(j) 중 일부에 형성된 정상나사부(12)와, 정상나사부(12) 외 나머지 원주구간(k)의 나사부는 볼트머리쪽으로 향한 나사산의 경사면이 정상나사부(12)의 나사산 경사면보다 더 경사지게 형성된 수정나사부(13)로 이루어진 것을 특징으로 하는 풀림방지 볼트에 관한 것이다.The present invention provides a threaded bolt in which a threaded portion of a threaded portion formed in a part of a circumferential section j of a threaded portion and a threaded portion of a circumferential section k other than the fixed threaded portion 12 are inclined And a correction screw portion (13) formed to be inclined more than the thread inclined surface of the normal screw portion (12).

Description

나사부의 일부 원주구간에서 나사산의 한쪽 기울기가 더 경사지게 형성된 풀림방지 볼트{Locking bolt having different slope of screw mountain on the part of circumferential range}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an anti-loosening bolt having a threaded portion,

본 발명은 나사부의 일부 원주구간에서 나사산의 한쪽 기울기가 더 경사지게 형성된 풀림방지 볼트에 관한 것으로, 더 구체적으로는 나사산이 형성된 볼트에 있어서, 나사부의 원주구간(j) 중 일부에 형성된 정상나사산부(12)와, 정상나사산부(12) 외 나머지 원주구간(k)의 나사부는 볼트머리쪽으로 향한 나사산의 경사면이 정상나사산부(12)의 나사산 경사면보다 더 경사지게 형성된 수정나사산부(13)로 이루어진 것을 특징으로 하는 풀림방지 볼트에 관한 것이다.The present invention relates to an anti-loosening bolt in which one slope of a thread is formed to be further inclined in a circumferential section of a thread, more specifically, to a threaded bolt, a threaded portion formed in a part of a circumferential section (j) 12 and the threaded portion of the remaining circumferential section k outside the normal threaded portion 12 is composed of a quadrangular threaded portion 13 whose inclined face directed toward the head of the bolt is inclined more than the threaded inclined face of the normal threaded portion 12 The invention relates to an anti-loosening bolt.

일반적으로 볼트 너트 체결의 풀림방지를 위해 2중 너트 또는 변형된 너트를 사용하여 이루어지는 경우가 많았다.Generally, a double nut or a deformed nut is often used to prevent loosening of bolt nut fastening.

종래기술로서 등록실용신안 제20-0397451호에 나사산의 일부를 눌러 두께를 두껍게 형성하여 체결시 두꺼운 나사산 부분에 너트를 억지끼움하여 풀림방지하도록 형성된 볼트가 공지되어 있다.As a conventional technique, there has been known a bolt formed in Registration No. 20-0397451 by pressing a part of a screw thread to increase the thickness thereof, and to prevent the nut from being loosened by forcing the nut into a thick thread portion during fastening.

그러나 상기 제20-0397451호의 두꺼운 나사산부분에 너트의 억지끼움으로 인하여 너트의 나사부가 마모될 뿐 아니라 억지끼움에 힘을 가해야 하는 등의 문제점이 있었다.However, the screw thread of the nut is worn out due to the interference of the nut to the thick thread portion of the above-mentioned No. 20-0397451, and there is a problem that the force is required to be applied to the interference fit.

본 발명은 볼트 나사부의 소정의 중심각에 해당하는 원주구간에 나사산의 한쪽 경사면을 그 외 원주구간보다 더 경사지게 형성함으로써 볼트가 체결대상물체를 관통하여 너트 등 나사부에 체결되면서 너트가 기울어지면서 너트와 체결대상물체 간 일정부분에 힘이 집중되면서 견고한 체결이 형성되는 풀림방지 볼트에 관한 것이다.The present invention is characterized in that one of the inclined surfaces of the thread is inclined to a circumferential section corresponding to a predetermined central angle of the bolt thread portion so that the inclined surface of the thread is inclined more than the circumferential section so that the bolt is fastened to the object such as a nut, The present invention relates to an anti-loosening bolt in which a force is concentrated at a predetermined portion between a target object and a solid fastener is formed.

본 발명은 볼트 나사부의 소정의 중심각에 해당하는 원주구간에서 볼트머리 쪽으로 향하는 나사산의 경사면을 그 외 원주구간보다 더 경사지게 형성하여 볼트가 체결대상물체를 관통하여 너트 등 나사부에 견고하게 체결되도록 형성한 풀림방지 볼트를 제공하는 것을 목적으로 한다.The present invention is characterized in that an inclined surface of a thread toward a head of a bolt in a circumferential section corresponding to a predetermined central angle of a bolt thread portion is inclined more than an outer circumferential section so that the bolt is tightly fastened to a threaded portion such as a nut through an object to be fastened And an object of the present invention is to provide an anti-loosening bolt.

이러한 과제를 달성하기 위하여, 본 발명은 나사산이 형성된 볼트에 있어서, To achieve these objects, the present invention provides a threaded bolt,

나사부의 원주구간(j) 중 일부에 형성된 정상나사산부(12)와, 정상나사산부(12) 외 나머지 원주구간(k)의 나사부는 볼트머리쪽으로 향한 나사산의 경사면이 정상나사산부(12)의 나사산 경사면보다 더 경사지게 형성된 수정나사산부(13)로 이루어진 것을 특징으로 하는 풀림방지 볼트에 관한 것이다.The threaded portion of the circumferential section (j) of the threaded portion and the threaded portion of the remaining circumferential section (k) outside the normal threaded portion (12) And a modified threaded portion (13) formed to be more inclined than a threaded inclined face.

본 발명에서 수정나사산부(3)는 볼트머리쪽으로 향한 나사산의 경사면이 정상나사산부(12)의 나사산 경사면보다 0.01도 이상 더 경사지도록 형성하는 것이 좋다.In the present invention, it is preferable that the modified thread portion 3 is formed so that the inclined surface of the thread toward the head of the bolt is inclined by 0.01 degree or more from the inclined surface of the threaded portion 12 of the normal thread portion.

본 발명의 볼트 나사부는 정상나사산부(12)와 수정나사산부(13)가 나누어져 일부 원주구간은 정상나사산부가, 나머지 원주구간은 수정나사산부가 형성된 것이며, 정상나사산부와 수정나사산부는 서로 연결되어 하나의 나사부를 형성하고 있는 것이다.In the bolt thread portion of the present invention, the normal thread portion 12 and the quadrangular thread portion 13 are divided so that some circumferential portions are formed with normal thread portions and the remaining circumferential portions are formed with the modified thread portions. And one screw portion is formed.

정상나사산부의 나사산 구조와 모양은 다양하게 형성될 수 있으며, 이러한 정상나사산부에서 소정 중심각(m)에 해당하는 원주구간에서 나사산의 두 경사면 중 볼트머리쪽으로 향하는 경사면(c)을 정상나사산부의 경사면(a,b)과 수정나사산부의 반대쪽 경사면(d)보다 더 경사지게 형성한 것이며, 바람직하게는 0.01도 정도 더 경사지도록 형성하는 것이 좋다.In the circumferential section corresponding to the predetermined central angle m, the inclined surface c directed to the head of the bolt among the two inclined surfaces of the thread is referred to as the inclined surface of the normal thread portion a, b and the inclined surface (d) on the opposite side of the quill thread portion, and is preferably formed to be inclined by about 0.01 degrees.

수정나사산부의 중심각(m)은 정상나사산부의 중심각(n)보다 더 크도록 형성하는 것이 바람직하며, 정상나사부의 중심각은 5도 이상 180도 미만이 바람직하며 이 경우 수정나사부의 중심각은 180도 내지 355도 범주가 된다.It is preferable that the central angle m of the quartz crystal part is larger than the central angle n of the normal thread part and the central angle of the normal thread part is preferably not less than 5 degrees and less than 180 degrees and in this case, Is also a category.

이와 같이 정상나사산부와 한 경사면을 더 경사지게 가공한 수정나사산부를 원주구간으로 나누어 병존하도록 형성한 본 발명의 볼트는 체결대상물체를 관통하여 너트 등의 나사부에 체결시 너트와 체결대상물체 간, 볼트머리부분 또는 볼트머리에 삽입된 와셔와 체결대상물체 간 접촉하여 체결되는데, 일반적인 볼트는 접촉부분에 고르게 힘이 작용하여 진동 등에 의해 잘 풀릴 수 있었으나 본 발명의 볼트는 체결되면서 접촉부분이 기울어지게 되여 일부분에 힘이 집중 작용하게 되어 큰 진동에도 견고한 체결을 유지하게 되는 것이다.The bolt of the present invention, which is formed so as to be coexistent by dividing the quadrangular section into the normal thread section and the inclined face of one inclined face, is passed through the object to be fastened to the thread section such as the nut, The bolts of the present invention can be easily released by vibration or the like due to the uniform force acting on the contact portion. However, the bolts of the present invention are tilted and the contact portions are tilted The force is concentrated on a part of the body, so that the body is firmly fastened even in a large vibration.

특히 체결되는 너트의 나사부는 수정나사산부의 더 경사진에 강하게 접촉하면서 기울어지게 되어 너트의 측면과 접하는 체결대상물체의 접촉면은 일정 부분에 힘이 집중하여 체결되게 됨으로써 견고한 체결이 이루어진다.Particularly, the threaded portion of the nut to be fastened is tilted while strongly contacting with the tapered portion of the quadrangular threaded portion, so that the contact surface of the object to be fastened is in contact with the side surface of the nut.

본 발명의 정상나사산부와 수정나사산부의 중심각 크기는 다양하게 형성될 수 있으며, 나사산부에 홈, 돌기 등 다양한 구조를 부가할 수 있다. The central angle of the normal threaded portion and the modified threaded portion of the present invention can be variously formed, and various structures such as grooves and projections can be added to the threaded portion.

본 발명은 볼트 나사부의 소정의 중심각에 해당하는 원주구간의 한쪽 나사산 경사부를 더 경사지게 형성함으로써, 볼트 체결 시 볼트가 체결대상물체를 관통하여 너트 등의 나사부에 체결되면서 너트가 기울어지면서 체결되어 너트와 체결대상물체 간 접촉하는 부분 중 힘이 집중작용하면서 체결되어 볼트의 견고한 체결이 형성되는 효과가 있다.In the present invention, one threaded inclined portion of a circumferential section corresponding to a predetermined central angle of the bolt threaded portion is inclined more, so that when the bolt is fastened, the bolt passes through the object to be fastened and is fastened to a threaded portion such as a nut. There is an effect that the bolt is firmly fastened while the force of the contacted portion between the object to be fastened is tightened.

특히 본 발명은 일정부분에 힘이 집중하는 원리에 의하여, 마치 쇄기처럼 작용하여 강한 진동에도 볼트체결이 풀리지 않고 유지되도록 하는 현저한 풀림방지 효과를 발생시킨다.Particularly, according to the present invention, due to the principle that a force concentrates on a certain portion, it acts like a wormhole so as to produce a remarkable loosening preventing effect that prevents the bolt from being loosened even in strong vibration.

도 1: 본 발명의 볼트 길이방향으로 절단한 단면도를 나타낸 것이다.
도 2: 본 발명의 볼트 길이방향에 대해 직각으로 절단한 단면도를 나타낸 것이다.
도 3: 본 발명의 정상나산부와 수정나사산부의 위치를 알기 쉽게 설명하기 위해 도시한 것이다.
1 is a sectional view taken along the direction of the bolt of the present invention.
Fig. 2 is a sectional view taken along a direction perpendicular to the bolt length direction of the present invention. Fig.
Fig. 3 is a view for explaining the positions of the normal thread portion and the quartz crystal thread portion of the present invention.

도 1는 본 발명의 볼트 길이방향으로 중심 절단한 단면도를 나타낸 것으로, 상부에 볼트머리(10)가 있고, 하부로 볼트몸체(15)가 향하도록 나타내고 있으며, 그림에서 왼쪽에 정상나사산부(12)가 형성되어 있으며, 확대도에서 보는 바와 같이 나사산의 경사각 a,b은 같게 형성되어 있다.(대칭의 경우이며, 경우에 따라서는 비대칭의 나사산이 될 수 있다)FIG. 1 is a cross-sectional view of the bolt according to the present invention taken along the longitudinal direction of the bolt. FIG. 1 shows a bolt head 10 on the upper side and a bolt body 15 on the lower side. As shown in the enlarged view, the inclination angles a and b of the thread are formed to be the same (symmetrical case and possibly asymmetrical thread)

정상나산부(12)의 반대쪽에는 수정나사산부(13)가 형성되어 있으며 확대도에서 보는바와 같이 수정나사산부(13)는 볼트머리(10) 쪽을 향하는 경사면(h)을 타 경사면보다 더 경사지게 형성되며, 바람직하게는 0.01도 이상 더 경사지게 형성하는 것이 좋다.(경사면이 최대로 볼트몸체(15)에 대하여 수직까지 형성할 수 있다)The modified thread portion 13 is formed on the opposite side of the normal thread portion 12 and the inclined face h facing the bolt head 10 is inclined more than the other inclined face as shown in the enlarged view (Preferably, the inclined surface can be formed up to the vertical with respect to the bolt body 15)

볼트 길이방향에 대해 직각으로 절단한 단면도인 도 2에서 원주구간 j는 정상나사산부(12)가 형성된 원주구간을 나타낸 것이고 원주구간 k는 수정나사산부(13)가 형성된 원주구간을 나타낸 것이다.In FIG. 2, which is a cross-sectional view perpendicular to the bolt length direction, the circumferential section j represents the circumferential section in which the normal thread section 12 is formed, and the circumferential section k represents the circumferential section in which the correction thread section 13 is formed.

수정나사산부(13)의 원주구간 중심각 m은 정상나사산부(12) 중심각 n과 비슷하거나 작게 형성하는 것이 바람직하다.It is preferable that the center angle m of the quadrangular section of the quartz crystal screw section 13 is formed to be approximately equal to or smaller than the center angle n of the normal threaded section 12. [

이와 같이 본 발명은 나사산이 모든 원주구간에서 같게 형성되는 것이 아니라, 더 경사진 면을 가진 수정나사산부를 구현한 것이다.As described above, the present invention is not the same in all circumferential sections, but implements a modified threaded portion having a more inclined surface.

도 3은 본 발명의 정상나산부(22)와 수정나사산부(23)의 위치관계를 알기 쉽게 설명하기 위하여 도시한 것으로, 원주구간으로 구분 형성된 것이며, 정상나산부(22)와 수정나사산부(23)가 연결되는 부분에서는 경사부의 변화정도를 완만하게 형성하는 것이 좋다.FIG. 3 is a perspective view for explaining the positional relationship between the normal thread portion 22 and the quadrangular thread portion 23 of the present invention. The thread portion 22 is divided into a circumferential section, It is preferable that the degree of change of the inclined portion is formed gently.

본 발명의 구성은 상기 실시예에 한정되는 것은 아니며, 통상의 기술범주 내에서 실시할 수 있는 다양한 실시예를 포함하는 것이다.The configuration of the present invention is not limited to the above-described embodiments, but includes various embodiments that can be practiced within the ordinary skill in the art.

10:볼트머리 12,22:정상나사산부 13,23:수정나사산부 15:볼트몸체 17:나사산부 a,b,c,d:경사각 g,h:경사면 m,n:중심각 j,k:원주구간B, c, d: inclination angle g, h: inclined surface m, n: central angle j, k: circumferential surface section

Claims (2)

나사산이 형성된 볼트에 있어서,

나사부의 원주구간(j) 중 일부에 형성된 정상나사부(12)와, 정상나사부(12) 외 나머지 원주구간(k)의 나사부는 볼트머리쪽으로 향한 나사산의 경사면이 정상나사부(12)의 볼트머리쪽으로 향한 나사산 경사면보다 더 경사지게 형성된 수정나사부(13)로 이루어진 것을 특징으로 하는 풀림방지 볼트.
In the threaded bolt,

The threaded portion of the circumferential section (j) of the threaded portion and the threaded portion of the circumferential section (k) other than the steady threaded portion (12) are formed such that the inclined surface of the threaded portion toward the head of the bolt And a correction screw portion (13) formed to be inclined more than a thread inclined surface directed toward said bolt.
청구항 1에 있어서, 수정나사부(3)는 볼트머리쪽으로 향한 나사산의 경사면이 정상나사부(12)의 볼트머리쪽으로 향한 나사산 경사면보다 0.01도 이상 더 경사진 것을 특징으로 하는 풀림방지 볼트.The loosening prevention bolt according to claim 1, wherein the correction threaded portion (3) is inclined at an angle of 0.01 degrees or more with respect to the threaded inclined face of the threaded portion toward the head of the bolt.
KR1020150176691A 2015-12-11 2015-12-11 Locking bolt having different slope of screw mountain on the part of circumferential range Ceased KR20170069469A (en)

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Application Number Priority Date Filing Date Title
KR1020150176691A KR20170069469A (en) 2015-12-11 2015-12-11 Locking bolt having different slope of screw mountain on the part of circumferential range

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020013568A1 (en) * 2018-07-11 2020-01-16 엘지이노텍 주식회사 Motor
KR20230001223A (en) 2021-06-28 2023-01-04 주식회사 대한볼트 Bolts and nuts with anti-loosening function

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020013568A1 (en) * 2018-07-11 2020-01-16 엘지이노텍 주식회사 Motor
EP3822499A4 (en) * 2018-07-11 2021-09-08 LG Innotek Co., Ltd. ENGINE
US11637472B2 (en) 2018-07-11 2023-04-25 Lg Innotek Co., Ltd. Motor
KR20230001223A (en) 2021-06-28 2023-01-04 주식회사 대한볼트 Bolts and nuts with anti-loosening function

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