KR200141896Y1 - Shock-absorbing structure of steering wheel - Google Patents

Shock-absorbing structure of steering wheel Download PDF

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Publication number
KR200141896Y1
KR200141896Y1 KR2019960044768U KR19960044768U KR200141896Y1 KR 200141896 Y1 KR200141896 Y1 KR 200141896Y1 KR 2019960044768 U KR2019960044768 U KR 2019960044768U KR 19960044768 U KR19960044768 U KR 19960044768U KR 200141896 Y1 KR200141896 Y1 KR 200141896Y1
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South Korea
Prior art keywords
steering wheel
column tube
absorbing structure
vehicle
shock
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KR2019960044768U
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KR19980031605U (en
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남춘우
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양재신
대우자동차주식회사
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Publication of KR19980031605U publication Critical patent/KR19980031605U/en
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    • 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
    • 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
    • B60Y2304/078Facilitating assembling or mounting by interchangeable parts, e.g. new part adapting to old design
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60YINDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2306/00Other features of vehicle sub-units
    • B60Y2306/01Reducing damages in case of crash, e.g. by improving battery protection

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

Abstract

본 고안은 자동차 조향핸들의 충격 흡수구조에 관한 것으로, 더 상세히는 자동차의 충돌사고시 조향핸들에 의한 운전자의 부상을 줄일 수 있도록 하기위한 자동차 조향핸들의 충격 흡수구조에 관한 것이다.The present invention relates to a shock absorbing structure of a steering wheel of a vehicle, and more particularly, to a shock absorbing structure of a steering wheel of a vehicle for reducing a driver's injury caused by a steering wheel during a crash of a vehicle.

본 고안에 따른 자동차 조향핸들의 충격 흡수구조는 위 컬럼튜브(210)와 아래 컬럼튜브(220)의 연결부위에 세레이션(211,221)을 형성하되, 세레이션(211,221)에 링홈(211a,221a)을 형성하고 링홈(211a,221a)에 플라스틱 링(R)을 끼운 후, 위 컬럼튜브(210)와 상기 아래 컬럼튜브(220)를 연결한 것이다.The shock absorbing structure of the steering wheel of the vehicle according to the present invention forms serrations 211 and 221 at the connection portions of the upper column tube 210 and the lower column tube 220, and ring grooves 211a and 221a in the serrations 211 and 221. After forming and inserting the plastic ring (R) in the ring groove (211a, 221a), the upper column tube 210 and the lower column tube 220 is connected.

Description

자동차 조향핸들의 충격흡수구조Shock-absorbing structure of steering wheel

본 고안은 자동차 조향핸들의 충격 흡수구조에 관한 것으로, 더 상세히는 자동차의 충돌사고시 조향핸들에 의한 운전자의 부상을 줄일 수 있도록 하기 위한 자동차 조향핸들의 충격 흡수구조에 관한 것이다.The present invention relates to a shock absorbing structure of a steering wheel of a vehicle, and more particularly, to a shock absorbing structure of a steering wheel of a vehicle for reducing a driver's injury caused by a steering wheel during a crash of a vehicle.

자동차 조향핸들은 자동차 충돌사고시 운전자의 부상을 가볍게 하기 위하여, 조향핸들이 운전자 쪽으로 튀어 나와서 운전자가 부상을 당하는 것과 동시에 운전자가 관성에 의하여 조향핸들에 부딪칠 때의 충격을 경감시키는 구조를 적용하기도 한다.To steer the driver's injury in the event of a car crash, the steering wheel may come out of the driver's side so that the driver may be injured and reduce the impact when the driver hits the steering wheel by inertia. .

자동차의 충돌사고시 조향핸들이 충돌에너지를 흡수하는 방법은 조향축 또는 컬럼이 축방향으로 압축되어 변형됨으로써 충격을 흡수하게 되며, 어떠한 방식이든 조향축은 2개로 나뉘어져 있고 세레이션으로 결합하여 핸들의 조작시 회전력이 전달되도록 되어 있다.The steering wheel absorbs the collision energy during the collision of the vehicle. The steering shaft or column is compressed in the axial direction and deformed to absorb shocks. In any way, the steering shaft is divided into two and combined with serrations to operate the steering wheel. Rotational force is to be transmitted.

제1도는 종래의 자동차 조향핸들의 충격 흡수과정을 예시한 것으로, 이것은 조향축(11,12)의 변형으로 충돌에너지를 흡수하는 방식으로, 일명 벨로우즈형이라고도 한다. 이것은 조향축(11,12)과 컬럼튜브(21,22)가 둘로 나뉘어져 있으며, 위 조향축(11)과 아래 조향축(12)은 세레이션결합으로 되어 있으며 위 컬럼튜브(21)와 아래 컬럼튜브(22)는 플랜지에 의해 결합되어 있다. 그리고 아래 컬럼튜브(22)에는 벨로즈(A)가 형성되어 있다. 이 형식은 1차 충격을 받으면 차체가 변형되면서 벨로즈(A)의 하부가 오므러 들고, 2차 충격을 받았을 때에는 위 조향축(11)이 벨로즈(A)의 상부를 변형시키면서 충격을 흡수하도록 되어 있다. 이러한 형식외에도 조향축(11,12)이 변형되면서 충돌에너지를 흡수하는 형식 등이 있으나, 그 설명은 생략한다.FIG. 1 illustrates a shock absorbing process of a conventional steering wheel of a vehicle, which absorbs collision energy by deformation of steering shafts 11 and 12, also called a bellows type. It is divided into two steering shafts (11, 12) and column tubes (21, 22), the upper steering shaft (11) and the lower steering shaft (12) is a serration coupling, the upper column tube (21) and the lower column The tube 22 is joined by a flange. And bellows (A) is formed in the lower column tube (22). In this type, when the primary shock is received, the lower body of the bellows (A) is lifted as the body is deformed, and when the secondary shock is received, the upper steering shaft (11) absorbs the shock while deforming the upper part of the bellows (A). It is supposed to be. In addition to this type, the steering shafts 11 and 12 are deformed to absorb collision energy, but the description thereof will be omitted.

그런데, 종래의 자동차 조향핸들의 컬럼 충격흡수 구조는 충격흡수시 조향축(11,12)이나 컬럼튜브(21,22)가 변형되므로 정비시 조향핸들을 새것으로 교체하여야 하며, 그 구조도 복잡한 편이어서 원가상승 및 조립시간의 연장을 초래하였다.By the way, the column shock absorbing structure of the conventional steering wheel of the vehicle has a steering shaft (11, 12) or column tube (21, 22) is deformed during the shock absorption, so the steering wheel must be replaced with a new one during maintenance, the structure is also complicated This led to cost increases and longer assembly times.

본 고안은 이러한 종래의 단점을 감안한 것으로, 간단한 구조로 만들고 충격흡수시 조향축이나 컬럼튜브가 변형되지 않도록 하는데 있다.The present invention has been made in view of the above-mentioned disadvantages, and it is intended to make a simple structure and to prevent deformation of the steering shaft or the column tube during shock absorption.

제1도는 종래의 자동차 조향핸들의 충격 흡수과정을 예시한 도면.1 is a diagram illustrating a shock absorbing process of a conventional steering wheel of a vehicle.

제2도는 본 고안에 따른 자동차 조향핸들의 충격 흡수구조를 나타낸 사시도.Figure 2 is a perspective view showing the shock absorbing structure of the steering wheel of the vehicle according to the present invention.

제3도는 제2도의 A부 확대도.3 is an enlarged view of a portion A of FIG.

제4도는 제2도의 조립상태 단면도.4 is a cross-sectional view of the assembled state of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

110 : 위 조향축 120 : 아래 조향축110: upper steering shaft 120: lower steering shaft

210 : 위 컬럼튜브 220 : 아래 컬럼튜브210: upper column tube 220: lower column tube

211,221 : 세레이션 211a,221a : 링홈211,221: Serration 211a, 221a: Ring groove

R : 플라스틱 링R: Plastic Ring

본 고안에 따른 자동차 조향핸들의 충격 흡수구조는 위 조향축(110)과 아래 조향축(120)은 세레이션결합으로 연결되며, 상기 위 조향축(110)과 상기 아래 조향축(120)이 위 컬럼튜브(210)와 아래 컬럼튜브(220)에 의해 내장되도록 연결되는 자동차의 조향핸들에 있어서, 상기 위 컬럼튜브(210)와 상기 아래 컬럼튜브(220)의 연결부위에 세레이션(211,221)을 형성하되, 상기 세레이션(211,221)에 링홈(211a,221a)을 형성하고 상기 링홈(211a,221a)에 플라스틱 링(R)을 끼운후, 상기 위 컬럼튜브(210)와 상기 아래 컬럼튜브(220)를 연결한 것에 그 특징이 있다.In the shock absorbing structure of the steering wheel of the vehicle according to the present invention, the upper steering shaft 110 and the lower steering shaft 120 are connected by serration coupling, and the upper steering shaft 110 and the lower steering shaft 120 are upper. In the steering wheel of the vehicle connected to be built by the column tube 210 and the lower column tube 220, the serration (211, 221) is connected to the connection portion of the upper column tube 210 and the lower column tube 220. Forming, but after forming the ring groove (211a, 221a) in the serration (211, 221) and inserting the plastic ring (R) in the ring groove (211a, 221a), the upper column tube 210 and the lower column tube 220 ) Has a characteristic of connecting.

이하, 본 고안의 바람직한 실시예를 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

제2도는 본 고안에 따른 자동차 조향핸들의 충격 흡수구조를 나타낸 사시도이고, 제3도는 제2도의 A부 확대도이며, 제4도는 제2도의 조립상태 단면도이다.2 is a perspective view showing the shock absorbing structure of the steering wheel of the vehicle according to the present invention, FIG. 3 is an enlarged view of portion A of FIG. 2, and FIG. 4 is a cross-sectional view of the assembled state of FIG.

제2도 및 제3도에 도시한 바와같이, 위 컬럼튜브(210)의 상단부와 아래 컬럼튜브(220)의 하단부에 각각 세레이션(211,221)을 형성한다. 세레이션(211,221)은 위 컬럼튜브(210)의 경우 그 내주면에 형성하고 아래 컬럼튜브(220)의 경우 그 외주면에 형성하여 위 컬럼튜브(210)와 아래 컬럼튜브(220)를 직선적으로 연결할 수 있도록 한다. 이때 링홈(211a,221a)은 세레이션(211,221)의 돌출부분을 원주방향으로 홈가공하여 형성하되, 바람직하게로는 충격흡수효과를 높이기 위하여 여러개의 링홈(211a,221a)을 일정 간격으로 형성하고 각각의 링홈(211a,221a)에 플라스틱 링(R)을 끼운다.As illustrated in FIGS. 2 and 3, serrations 211 and 221 are formed at the upper end of the upper column tube 210 and the lower end of the lower column tube 220, respectively. The serrations 211 and 221 are formed on the inner circumferential surface of the upper column tube 210 and on the outer circumferential surface of the lower column tube 220 to linearly connect the upper column tube 210 and the lower column tube 220. Make sure At this time, the ring groove (211a, 221a) is formed by groove processing the projections of the serration (211,221) in the circumferential direction, preferably to form a plurality of ring grooves (211a, 221a) at regular intervals in order to increase the shock absorption effect The plastic ring R is inserted into each of the ring grooves 211a and 221a.

제3도 및 제4도에 도시한 바와같이, 각각의 링홈(211a,221a)에 플라스틱 링(R)을 끼운 후 위 컬럼튜브(210)와 아래 컬럼튜브(220)를 연결하는 방식으로 조향핸들을 조립한 후 설치하면 된다.As shown in FIGS. 3 and 4, the steering wheel is formed by inserting the plastic ring R into each of the ring grooves 211a and 221a and then connecting the upper column tube 210 and the lower column tube 220 to each other. Install it after assembling.

이와같이, 조립하여 설치한 본 고안에 따른 조향핸들은 1차 충격을 받으면 차체가 변형됨과 아울러 차체로부터 컬럼튜브(210,220)에 충격이 전달되어 플라스틱 링(R)이 압축 및 변형되고, 2차 충격을 받았을 때에는 위 조향축(110)을 통하여 컬럼튜브(210,220)에 충격이 전달되어 플라스틱 링(R)이 압축 및 변형되면서 충격을 흡수한다. 부언하여, 컬럼튜브(210,220)에 충격이 전달되었을 때 링홈(211a,221a) 부위의 압축력에 의하여 플라스틱 링(R)에 전단응력이 발생되고 이 전단응력에 의하여 플라스틱 링(R)이 변형되면서 충격을 흡수하게 된다.In this way, the steering wheel according to the present invention assembled and installed, the vehicle body is deformed when the primary shock is received, and the shock is transmitted from the vehicle body to the column tubes 210 and 220 so that the plastic ring R is compressed and deformed, and the secondary impact is applied. When received, the shock is transmitted to the column tubes 210 and 220 through the steering shaft 110 to absorb the shock as the plastic ring R is compressed and deformed. In addition, when a shock is transmitted to the column tubes 210 and 220, a shear stress is generated in the plastic ring R by the compressive force of the ring grooves 211a and 221a, and the plastic ring R is deformed by the shear stress. Will absorb.

따라서, 자동차 충돌사고시 플라스틱 링(R)이 변형되었거나 파손되더라도 조향핸들의 주요 구성 부품에 대한 손상을 방지할 수 있다.Therefore, even if the plastic ring R is deformed or broken in an automobile crash accident, damage to the main components of the steering wheel can be prevented.

상술한 바와같이, 본 고안에 따른 자동차 조향핸들의 컬럼 충격흡수 구조는 조향핸들의 충격흡수 과정에서 조향축(110,120)이나 컬럼튜브(210,220)가 변형되지 않고 플라스틱 링(R)만을 새것으로 교체하면 되므로 조향핸들의 수리비가 저렴하게 소요되며, 간단한 구조로 되어 있어 조향핸들의 원가가 절감됨은 물론 조립성이 향상되는 효과가 있다.As described above, the column shock absorbing structure of the steering wheel of the vehicle according to the present invention, if the steering shaft (110, 120) or column tube (210, 220) is not deformed during the shock absorbing process of the steering handle, replacing only the plastic ring (R) with a new one Therefore, the repair cost of the steering wheel is inexpensive, and the simple structure has the effect of reducing the cost of the steering wheel and improving the assembly.

Claims (1)

위 조향축(110)과 아래 조향축(120)은 세레이션결합으로 연결되며, 상기 위 조향축(110)과 상기 아래 조향축(120)이 위 컬럼튜브(210)와 아래 컬럼튜브(220)에 의해 내장되도록 연결되는 자동차의 조향핸들에 있어서, 상기 위 컬럼튜브(210)와 상기 아래 컬럼튜브(220)의 연결부위에 세레이션(211,221)을 형성하되, 상기 세레이션(211,221)에 링홈(211a,221a)을 형성하고 상기 링홈(211a,221a)에 플라스틱 링(R)을 끼운 후, 상기 위 컬럼튜브(210)와 상기 아래 컬럼튜브(220)를 연결한 것을 특징으로 하는 자동차 조향핸들의 충격 흡수구조.The upper steering shaft 110 and the lower steering shaft 120 are connected by serration coupling, and the upper steering shaft 110 and the lower steering shaft 120 are the upper column tube 210 and the lower column tube 220. In the steering wheel of the vehicle connected to be built by the, the serrations (211, 221) are formed on the connection portion of the upper column tube 210 and the lower column tube 220, ring grooves in the serration (211, 221) After forming the 211a, 221a and inserting the plastic ring (R) in the ring groove (211a, 221a), the steering wheel of the vehicle characterized in that the upper column tube 210 and the lower column tube 220 is connected Shock absorbing structure.
KR2019960044768U 1996-11-30 1996-11-30 Shock-absorbing structure of steering wheel Expired - Fee Related KR200141896Y1 (en)

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KR200141896Y1 true KR200141896Y1 (en) 1999-06-01

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