KR100206223B1 - Steering column impact relief structure - Google Patents

Steering column impact relief structure Download PDF

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Publication number
KR100206223B1
KR100206223B1 KR1019960069727A KR19960069727A KR100206223B1 KR 100206223 B1 KR100206223 B1 KR 100206223B1 KR 1019960069727 A KR1019960069727 A KR 1019960069727A KR 19960069727 A KR19960069727 A KR 19960069727A KR 100206223 B1 KR100206223 B1 KR 100206223B1
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South Korea
Prior art keywords
shaft
lower shaft
upper shaft
steering column
nut
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Expired - Fee Related
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KR1019960069727A
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Korean (ko)
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KR19980050882A (en
Inventor
신영귀
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정몽규
현대자동차주식회사
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Priority to KR1019960069727A priority Critical patent/KR100206223B1/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

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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 발명은 자동차 조향 컬럼 충격완화구조에 관한 것이다. 본 발명은 차량의 정면충돌에 따른 상부 축의 하부 축내로의 삽입이 용이하게 이루어질 수 있고, 내구성이 높은 구조를 취하기 위하여, 하부 축(11)을 장원형의 단면으로 구성하고, 상부 축(12)은 하부 축(11)의 외면에 끼워질 수 있고 외면에 나사가 형성되며 끝으로 갈수록 테이퍼 형상으로 벌어진 장원형 단면의 파이프로 구성하며, 이 하부 축(11)의 단부에는 양측을 절개한 절개부(13a, 13b)와 끝을 절곡한 스톱퍼(14a, 14b)를 형성하고, 상부 축(12)의 나사에는 너트(15)를 체결시킨 것이다. 너트(15)를 체결하면 상부 축(12)의 단부가 오므라지면서 하부 축(11)을 조이게 된다. 이 상부 축(12)과 하부 축(11)은 1차적으로 충돌에 따른 충격을 흡수한다.The present invention relates to an automobile steering column impact mitigation structure. The present invention can be easily inserted into the lower shaft of the upper shaft in accordance with the frontal collision of the vehicle, in order to take a highly durable structure, the lower shaft 11 is composed of an oblong cross section, the upper shaft 12 Silver can be fitted to the outer surface of the lower shaft 11, the screw is formed on the outer surface is composed of a pipe of an oblong cross-section spread in a tapered shape toward the end, the end of the lower shaft 11 incision cut both sides (13a, 13b) and the stopper 14a, 14b which bend | folded the end are formed, and the nut 15 is fastened to the screw of the upper shaft 12. As shown in FIG. When the nut 15 is fastened, the end of the upper shaft 12 is tightened to tighten the lower shaft 11. The upper shaft 12 and the lower shaft 11 primarily absorb the impact of the collision.

Description

조향 컬럼 충격완화구조Steering column impact relief structure

본 발명은 자동차의 조향 컬럼 충격완화구조(Steering Column Impact Relieved Structure)에 관한 것이다.The present invention relates to a steering column impact relief structure of an automobile.

종래의 조향 컬럼은 도 1 및 도 2에서 보는 바와 같이 차체에 고정되는 하부 브래킷(1)을 갖는 하부 튜브(2)와, 캡슐(3)과 결합되는 상부 브래킷(4)을 갖는 상부 튜브(5)가 서로 신축되도록 결합되어 있고, 이 상부 튜브(5)와 하부 튜브(2)의 내부에는 상부 축(6)과 하부 축(7)이 충격시 파괴될 수 있는 2개의 플라스틱 핀(8a,8b)으로 결합되어 있다.The conventional steering column has a lower tube 2 with a lower bracket 1 fixed to the vehicle body as shown in FIGS. 1 and 2 and an upper tube 5 with an upper bracket 4 coupled with the capsule 3. ) Are elastically coupled to each other, and inside the upper tube 5 and the lower tube 2 there are two plastic pins 8a, 8b which the upper shaft 6 and the lower shaft 7 can be destroyed upon impact. ) Are combined.

이에 따라, 정면충돌에 따른 충격을 받으면 1차적으로 2개의 플라스틱 핀(8a,8b)이 파괴되면서 상부 축(6)이 주저앉고, 2차적으로 차체에 고정되는 캡슐(3)로 부터 상부 브래킷(4)이 떨어져 나가 상부 튜브(5)가 주저앉게 한 것이다.Accordingly, when the impact caused by the frontal collision, the two upper plastic pins (8a, 8b) are destroyed first, the upper shaft (6) is slumped, and the upper bracket (from the capsule (3), which is secondarily fixed to the vehicle body ( 4) fall off and let the upper tube (5) fall down.

그러나, 상기와 같은 종래의 조향 칼럼은 경우에 따라 피로강도가 약해 오래되면 쉽게 부러지고, 특히 관성력에 의하여 조향 휠에 충격하중이 가해질 때 토크(비틀림 모멘트)가 작용하는 경우에는 그 응력이 커서 쉽게 파괴되지 않는 특성을 가지고 있다.However, the conventional steering column as described above is easily broken when fatigue due to weak fatigue strength in some cases, and particularly when the torque (torsion moment) is applied when the impact load is applied to the steering wheel by inertial force, the stress is large. It has the property of not being destroyed.

본 발명의 목적은 차량의 정면충돌에 따른 상부 축의 하부 축내로의 삽입이 용이하게 이루어질 수 있고, 내구성이 높은 구조의 조향 칼럼 충격완화구조를 제공하는데 있는 것이다.SUMMARY OF THE INVENTION An object of the present invention is to provide a steering column impact mitigating structure having a high durability, which can be easily inserted into a lower shaft of an upper shaft according to a frontal collision of a vehicle.

도 1은 조향 컬럼의 일반적인 형상을 나타낸 사시도.1 is a perspective view showing a general shape of a steering column.

도 2는 종래의 조향 컬럼 단면도.2 is a cross-sectional view of a conventional steering column.

도 3은 상부 축과 하부 축을 분리한 본 발명의 요부 사시도.Figure 3 is a perspective view of the main portion of the present invention separating the upper and lower shafts.

도 4는 그 결합상태 측면도.Figure 4 is a side view of the coupling state.

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

2 : 하부 튜브 3 : 캡슐 5 : 상부 튜브2: lower tube 3: capsule 5: upper tube

11 : 하부 축 12 : 상부 축 13a, 13b : 절개부11: lower axis 12: upper axis 13a, 13b: incision

14a, 14b : 스톱퍼 15 : 너트14a, 14b: Stopper 15: Nut

상기 목적을 달성하기 위한 본 발명의 구성을 첨부된 도면에 의하여 설명하면 다음과 같다. 이하에서 도 1 및 도 2와 동일한 부분에 대한 부호는 동일하게 적용된다.Referring to the accompanying drawings, the configuration of the present invention for achieving the above object is as follows. Hereinafter, the same reference numerals as in FIGS. 1 and 2 will be applied.

본 발명은 하부 축(11)을 장원형의 단면으로 구성하고, 상부 축(12)은 상기 하부 축(11)의 외면에 끼워질 수 있고 외면에 나사가 형성되며 끝으로 갈수록 테이퍼 형상으로 벌어진 장원형 단면의 파이프로 구성하며, 이 하부 축(11)의 단부에는 양측을 절개한 절개부(13a,13b)와 끝을 절곡한 스톱퍼(14a,14b)를 형성하고, 상기 상부 축(12)의 나사에는 너트(15)를 체결시킨 것이다.The present invention comprises a lower shaft 11 having an oblong cross section, the upper shaft 12 may be fitted to the outer surface of the lower shaft 11, the screw is formed on the outer surface and tapered shape toward the end It consists of a pipe of a circular cross section, and at the end of the lower shaft 11, cutouts 13a and 13b cut in both sides and stoppers 14a and 14b bent in the ends are formed. The nut 15 is fastened to the screw.

상기에서 상부 축(12)의 외면이 테이퍼가 졌다고 하는 것은 바로 나사가 형성된 부분으로서, 스톱퍼(14a,14b) 쪽으로 갈수록 벌어져 있음을 뜻한다. 그래서 너트(15)는 스톱퍼(14a,14b) 쪽으로 조일수록 체결력이 커지고, 절개부(13a,13b)는 이 때 끝부분으로 갈수록 오므라진다.In the above, the outer surface of the upper shaft 12 is tapered, which means that the screw is formed, and is widened toward the stoppers 14a and 14b. Thus, as the nut 15 is tightened toward the stoppers 14a and 14b, the tightening force is increased, and the cutout portions 13a and 13b are retracted toward the ends at this time.

본 발명은 상기와 같은 구성에 따라, 하부 축(11)을 상부 축(12) 내에 끼우고 너트(15)를 도 3과 같은 상태에서 좌측으로 체결시키면 상부 축(12)의 단부가 압박을 받으면서 오므라진다. 이것은 특히 절개부(13a,13b)가 오므라지는 것으로 나타난다. 이렇게 상부 축(12)의 단부가 너트(15)에 의하여 오므라들게 되면 하부 축(11)이 곧 상부 축(12)에 의하여 조여진다. 그 조임력은 너트(15)의 체결력과 동일하게 나타난다.According to the above configuration, when the lower shaft 11 is inserted into the upper shaft 12 and the nut 15 is fastened to the left in the state as shown in FIG. 3, the end of the upper shaft 12 is pressed. Retract This is especially seen as the incisions 13a and 13b retract. When the end of the upper shaft 12 is retracted by the nut 15, the lower shaft 11 is soon tightened by the upper shaft 12. The tightening force is equal to the tightening force of the nut 15.

따라서, 도 2와 같은 상태에서 도 3 및 도 4에 서 설명하는 본 발명의 하부 축(11)과 상부 축(12)을 적용하였다고 할 때 차량의 정면충돌이 일어나면 1차적으로 하부 축(11)이 상부 축(12) 내로 들어가면서 그 충격을 흡수하고, 2차적으로는 상부 튜브(5)가 하부 튜브(2)쪽으로 주저앉게 되며, 3차로는 캡슐(3)이 파괴되면서 그 충격을 흡수하게 되는 것이다.Therefore, when the lower shaft 11 and the upper shaft 12 of the present invention described in FIG. 3 and FIG. 4 are applied in the same state as in FIG. 2, when the frontal collision of the vehicle occurs, the lower shaft 11 is primarily performed. The shock absorbs the shock as it enters the upper shaft 12, and secondly, the upper tube 5 falls down toward the lower tube 2, and in the third, the capsule 3 is destroyed to absorb the shock. will be.

이와 같은 본 발명은 차량의 정면충돌에 따른 상부 축의 하부 축내로의 삽입이 용이하게 이루어질 수 있어 충격의 완화가 신뢰성있게 이루어지며, 피로강도가 높은 구조로 이루어지기 때문에 내구력이 향상되는 효과가 있는 것이다.As described above, the present invention can be easily inserted into the lower shaft of the upper shaft according to the frontal collision of the vehicle, so that the shock can be reliably made, and the durability is improved because the fatigue strength is made of the structure. .

Claims (1)

하부 축을 장원형의 단면으로 구성하고, 상부 축은 상기 하부 축의 외면에 끼워질 수 있고 외면에 나사가 형성되며 끝으로 갈수록 테이퍼 형상으로 벌어진 장원형 단면의 파이프로 구성하며, 이 하부 축의 단부에는 양측을 절개한 절개부와 끝을 절곡한 스톱퍼를 형성하고, 상기 상부 축의 나사에는 너트를 체결시킨 것을 특징으로 하는 조향 칼럼 충격완화구조.The lower shaft consists of an oblong cross section, and the upper shaft is fitted with an outer surface of the lower shaft and is formed with a pipe of an oblong cross section which is formed with a screw on the outer surface and is tapered toward the end. A steering column impact mitigation structure, comprising: a cut-off portion that is bent and an incision cut out, and a nut is fastened to a screw of the upper shaft.
KR1019960069727A 1996-12-21 1996-12-21 Steering column impact relief structure Expired - Fee Related KR100206223B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960069727A KR100206223B1 (en) 1996-12-21 1996-12-21 Steering column impact relief structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960069727A KR100206223B1 (en) 1996-12-21 1996-12-21 Steering column impact relief structure

Publications (2)

Publication Number Publication Date
KR19980050882A KR19980050882A (en) 1998-09-15
KR100206223B1 true KR100206223B1 (en) 1999-07-01

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960069727A Expired - Fee Related KR100206223B1 (en) 1996-12-21 1996-12-21 Steering column impact relief structure

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