KR20010047814A - Impulse energy absorption apparatus of universal joint for steering gear of car - Google Patents

Impulse energy absorption apparatus of universal joint for steering gear of car Download PDF

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Publication number
KR20010047814A
KR20010047814A KR1019990052193A KR19990052193A KR20010047814A KR 20010047814 A KR20010047814 A KR 20010047814A KR 1019990052193 A KR1019990052193 A KR 1019990052193A KR 19990052193 A KR19990052193 A KR 19990052193A KR 20010047814 A KR20010047814 A KR 20010047814A
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KR
South Korea
Prior art keywords
universal joint
joint
pipe member
impact
overlapping part
Prior art date
Application number
KR1019990052193A
Other languages
Korean (ko)
Inventor
김덕승
Original Assignee
밍 루
주식회사 만도
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Filing date
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Application filed by 밍 루, 주식회사 만도 filed Critical 밍 루
Priority to KR1019990052193A priority Critical patent/KR20010047814A/en
Publication of KR20010047814A publication Critical patent/KR20010047814A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D1/00Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16Steering columns
    • B62D1/18Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/19Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
    • B62D1/192Yieldable or collapsible columns
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2304/00Optimising design; Manufacturing; Testing
    • B60Y2304/05Reducing production costs, e.g. by redesign
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2304/00Optimising design; Manufacturing; Testing
    • B60Y2304/07Facilitating assembling or mounting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00Constructional features of vehicle sub-units
    • B60Y2410/102Shaft arrangements; Shaft supports, e.g. bearings

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering Controls (AREA)

Abstract

PURPOSE: An impact energy absorbing device has a predetermined overlapping part to improve shock absorbing performance. CONSTITUTION: A universal joint has a pipe member having an upper joint structure(4) on the upper end thereof and a lower joint structure(4) on the lower end thereof. A predetermined overlapping part(61) formed to be Z-shaped by bending the middle of the pipe member more than twice. When an impact occurs to the longitudinal direction, the predetermined overlapping part(61) is bent to overlap the middle of the universal joint to absorb the impact. The predetermined overlapping part(61) is formed by pressure forming to have thin and wide sectional shaped to be easily overlapped.

Description

자동차의 조향장치용 유니버셜 조인트의 충격에너지 흡수장치 {Impulse energy absorption apparatus of universal joint for steering gear of car}Impact energy absorption apparatus of universal joint for steering gear of car}

본 발명은 자동차의 조향장치용 유니버셜 조인트의 충격에너지 흡수장치에 대한 것으로서, 더 상세하게는 길이 방향의 충격 발생시 중단부분이 쉽게 중첩될 수 있도록 하는데 특징이 있는 것이다.The present invention relates to an impact energy absorbing device of a universal joint for a steering device of a vehicle, and more particularly, is characterized in that an interruption part easily overlaps when a longitudinal shock occurs.

일반적으로 자동차의 조향장치에서는 조향축의 하단을 랙/피니언에 연결하되, 임의의 각도로 기울어진 채 연결하도록 되어 있기 때문에 유니버셜 조인트를 사용하게 된다.In general, a steering device of a vehicle uses a universal joint because the lower end of the steering shaft is connected to the rack / pinion, but is inclined at an arbitrary angle.

이때의 유니버셜 조인트는 그 길이 방향으로 충격이 발생하였을 경우, 그 충격이 운전자의 가슴에 위치하는 조향핸들에까지 전달되지 않도록 하기 위해 대부분 충격에너지 흡수장치를 설치하며, 그 일례를 도 1에서 볼 수 있다.In this case, when the impact occurs in the longitudinal direction, most impact energy absorbers are installed so that the impact is not transmitted to the steering wheel located on the driver's chest, and an example thereof can be seen in FIG. 1. .

도 1의 경우 피니언 기어쪽에 연결되는 관경이 큰 파이프 조인트(1)와, 상기 파이프 조인트에 삽입되는 샤프트 조인트(2)로 구성하되, 상기한 파이프 조인트(1)의 내경에는 브로우칭 가공방법으로 세레이션을 형성하고, 샤프트 조인트(2)의 외경 역시 파이프 조인트(1)에 대응되는 세레이션을 가공하여 길이 방향으로 슬라이딩되게 하며, 임의의 길이가 확정된 위치에서 파이프 조인트(1)에는 통공(11)을, 샤프트 조인트(2)에는 요홈(21)을 형성하여 이들 통공(11)과 요홈(21)이 일치된 상태에서 합성수지재 몰딩핀(3)으로 고정한 것이다.In the case of Figure 1 consists of a pipe joint (1) having a large diameter connected to the pinion gear side, and a shaft joint (2) inserted into the pipe joint, the inner diameter of the pipe joint (1) by three broaching processing method And the outer diameter of the shaft joint 2 also processes the serration corresponding to the pipe joint 1 so as to slide in the longitudinal direction, and the hole 11 in the pipe joint 1 at an arbitrary length is determined. ), The shaft joint (2) is formed with a groove 21 to be fixed with a synthetic resin molding pin (3) in the state in which the through holes 11 and the groove (21) match.

따라서 충격이 발생하면 즉시 상기 몰딩핀(3)이 전단되고, 세레이션에 의해 길이 방향으로 삽입되면서 충격흡수구간(L) 만큼 밀고 들어가 충격을 흡수하게 된다.Therefore, when the impact occurs, the molding pin 3 is sheared and inserted in the longitudinal direction by the serration, and pushed into the shock absorbing section L to absorb the impact.

그러나 상기와 같은 종래의 충격흡수장치는 파이프 조인트(1)와 샤프트 조인트(2)의 내, 외경에 각각 세레이션 가공을 하여야 할 뿐만 아니라 정위치에 통공(11)과 요홈(21)을 형성하여 몰딩핀(3)을 형성하여야 하므로 제조가 어렵고 제조가 어려운 만큼 원가가 상승되며, 특히 파이프 조인트(1)의 길이 이내에서 충격흡수구간(L)이 정해지므로 완충구간이 비교적 짧은 등 여러 가지 단점이 있었다.However, the conventional shock absorbing device as well as the serration process on the inner and outer diameters of the pipe joint 1 and the shaft joint 2, respectively, as well as forming the through-hole 11 and the groove 21 in place Since the molding pin (3) must be formed, the manufacturing cost is increased because the manufacturing pin is difficult and the manufacturing difficulty is difficult. In particular, the shock absorbing section (L) is determined within the length of the pipe joint (1). there was.

따라서 본 발명은 상기와 같은 종래의 문제점을 감안하여 이를 해결 보완하고자 안출한 것으로서, 발명의 주된 목적은 파이프형 조인트부재의 중단에 충격 발생 때, 즉시 중첩될 수 있는 매우 간단한 구조의 중첩 예정부를 형성하여, 충격흡수기능을 충분히 완수할 수 있도록 하는 한편, 생산성을 향상시키고, 제조 원가가 절감될 수 있도록 하는데 있는 것이다.Therefore, the present invention has been made in view of the above-mentioned conventional problems to solve the problem, the main object of the invention is to form a superimposed portion of a very simple structure that can be immediately superimposed when an impact occurs in the interruption of the pipe-type joint member By doing so, the shock absorbing function can be sufficiently completed while improving productivity and reducing manufacturing costs.

이를 위한 특징적인 수단은 파이프부재의 상측 끝단에 상부 조인트기구가 구비되고, 하측 끝단에 하부 조인트기구가 구비된 유니버셜 조인트에 있어서, 상기한 파이프부재의 중단을 2회 이상 꺾어 Z자 모양으로 형성한 중첩 예정부를 형성하는데 있는 것이다.A characteristic means for this is a universal joint having an upper joint mechanism at an upper end of a pipe member and a lower joint mechanism at a lower end of the pipe member, wherein the interruption of the pipe member is formed two times or more to form a Z shape. It is to form an overlapping plan.

도 1은 종래의 구성을 보인 예시도1 is an exemplary view showing a conventional configuration

도 2는 본 발명의 구성을 보인 예시도2 is an exemplary view showing a configuration of the present invention

도 3은 본 발명의 요부 횡단면도3 is a cross-sectional view of main parts of the present invention.

도 4는 본 발명의 요부 종단면도4 is a longitudinal sectional view of main parts of the present invention;

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

4 : 상부 조인트기구 5 : 하부 조인트기구4: upper joint mechanism 5: lower joint mechanism

6 : 파이프부재 61 : 중첩 예정부6: pipe member 61: overlapping portion

이하 본 발명의 실시예에 따른 구성 및 작용을 첨부 도면에 따라 상세히 설명한다.Hereinafter, the configuration and operation according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 구성에 따른 단면도이고, 도 3은 도 2의 중단을 절단한 횡단면도이다.Figure 2 is a cross-sectional view according to the configuration of the present invention, Figure 3 is a cross-sectional view cut the middle of FIG.

본 발명의 유니버셜 조인트는 하나의 파이프부재(6)의 상측 끝단에 상부 조인트기구(4)가 구비되고, 하측 끝단에 하부 조인트기구(5)가 구비되는 것으로서, 본 발명에서의 가장 큰 특징은 상기한 파이프부재(6)의 중단을 2회 이상 꺾어 Z자 모양으로 형성한 중첩 예정부(61)를 형성하는데 있다.The universal joint of the present invention is provided with an upper joint mechanism 4 at the upper end of one pipe member 6 and a lower joint mechanism 5 at the lower end, and the greatest feature in the present invention is the above. This is to form the overlapping scheduled portion 61 formed by Z-shape by interrupting the interruption of one pipe member 6 or more times.

그리고 이때의 중첩 예정부(61)는 단면모양이 얇고 넓은 모양이 되도록 가압 형성하여 중첩에 용이하도록 하는 것이 좋다.In this case, the overlapping scheduled portion 61 may be formed to be pressurized so that the cross-sectional shape is thin and wide so as to facilitate the overlapping.

이와 같은 본 발명은 하나의 파이프부재(6) 상, 하측 끝단에 각각의 상, 하부 조인트기구(4)(5)를 연결하기 전에 먼저 중첩 예정부(61)를 형성한다.The present invention forms an overlapping portion 61 first before connecting the upper and lower joint mechanisms 4 and 5 to the upper and lower ends of one pipe member 6.

즉, 파이프부재(6)를 프레스 가공하여 단면 모양이 얇고 넓은 평판형 모양이 되도록 함과 동시에 그 평판형 부분의 양측을 꺾어 Z자 모양이 되도록 한다.That is, the pipe member 6 is press-processed so that the cross-sectional shape becomes a thin and wide flat plate shape, and at the same time, both sides of the flat plate part are bent to have a Z shape.

이후, 원통형을 유지하고 있는 파이프부재(6)의 양측으로 각각의 상, 하부 조인트기구(4)(5)를 연결한다.Thereafter, each of the upper and lower joint mechanisms 4 and 5 is connected to both sides of the pipe member 6 holding the cylindrical shape.

그리고 상기와 같이 형성된 본 발명의 유니버셜 조인트는 길이 방향에 대한 충격이 발생하였을 경우, 2회 이상의 꺾음부분을 가지는 중첩 예정부(61)에서 꺾임 현상이 일어나 중단이 중첩되면서 충격을 흡수할 수 있게 된다.And the universal joint of the present invention formed as described above, when the impact occurs in the longitudinal direction, the bending phenomenon occurs in the overlapping portion 61 having two or more bent portions to be able to absorb the impact while the suspension overlaps. .

위에서 상세히 설명한 바와 같은 본 발명은 하나의 파이프부재(6)의 중단을 미리 절곡하여 중첩 예정부(61)를 만들었기 때문에 충격흡수기능을 충분히 발휘함은 물론 충격흡수구간(L)의 길이를 길게 설계할 수 있고, 또 프레스 성형방법을 통해 간단히 제조할 수 있으므로 생산성이 향상되고, 그에 따라 제조 원가가 저렴해 지는 등 많은 장점을 가지는 것이다.The present invention as described in detail above, because the bending of the pipe member (6) in advance to make the overlapping portion 61 is made to fully demonstrate the shock absorbing function as well as lengthening the length of the shock absorbing section (L) It can be designed and manufactured simply by the press molding method, so that the productivity is improved, and accordingly, the manufacturing cost is low.

Claims (2)

파이프부재(6)의 상측 끝단에 상부 조인트기구(4)가 구비되고, 하측 끝단에 하부 조인트기구(5)가 구비된 유니버셜 조인트에 있어서,In the universal joint in which the upper joint mechanism 4 is provided at the upper end of the pipe member 6, and the lower joint mechanism 5 is provided at the lower end, 상기한 파이프부재(6)의 중단을 2회 이상 꺾어 Z자 모양으로 형성한 중첩 예정부(61)를 형성하여서 된 것을 특징으로 하는 자동차의 조향장치용 유니버셜 조인트의 충격에너지 흡수장치.The impact energy absorbing device of the universal joint for steering device of a vehicle, characterized in that by forming an overlapping scheduled portion 61 formed in a Z shape by bending the pipe member 6 two or more times. 제 1 항에 있어서,The method of claim 1, 상기한 파이프부재(6)의 중첩예정부(61)는 단면모양이 얇고 넓은 모양이 되도록 가압 형성하여 중첩에 용이하도록 하여서 된 것을 특징으로 하는 자동차의 조향장치용 유니버셜 조인트의 충격에너지 흡수장치The superimposition preliminary section 61 of the pipe member 6 is formed so as to be easily overlapped by forming a cross-sectional shape to be thin and wide shape, the impact energy absorbing device of the universal joint for steering device of the automobile
KR1019990052193A 1999-11-23 1999-11-23 Impulse energy absorption apparatus of universal joint for steering gear of car KR20010047814A (en)

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Application Number Priority Date Filing Date Title
KR1019990052193A KR20010047814A (en) 1999-11-23 1999-11-23 Impulse energy absorption apparatus of universal joint for steering gear of car

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Application Number Priority Date Filing Date Title
KR1019990052193A KR20010047814A (en) 1999-11-23 1999-11-23 Impulse energy absorption apparatus of universal joint for steering gear of car

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6279664U (en) * 1985-11-08 1987-05-21
JPS62184064U (en) * 1986-05-15 1987-11-21
KR19980067145A (en) * 1997-01-31 1998-10-15 손명원 Shock-absorbing eccentric steering shaft device of automobile

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6279664U (en) * 1985-11-08 1987-05-21
JPS62184064U (en) * 1986-05-15 1987-11-21
KR19980067145A (en) * 1997-01-31 1998-10-15 손명원 Shock-absorbing eccentric steering shaft device of automobile

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