KR100620870B1 - Buffering device of steering column - Google Patents

Buffering device of steering column Download PDF

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Publication number
KR100620870B1
KR100620870B1 KR1020000042730A KR20000042730A KR100620870B1 KR 100620870 B1 KR100620870 B1 KR 100620870B1 KR 1020000042730 A KR1020000042730 A KR 1020000042730A KR 20000042730 A KR20000042730 A KR 20000042730A KR 100620870 B1 KR100620870 B1 KR 100620870B1
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South Korea
Prior art keywords
steering
tube
steering column
bolt
column
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KR1020000042730A
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Korean (ko)
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KR20020008701A (en
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홍호석
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주식회사 만도
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
    • B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
    • B62D1/16—Steering columns
    • B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
    • B62D1/19—Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
    • B62D1/192—Yieldable or collapsible columns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2304/00—Optimising design; Manufacturing; Testing
    • B60Y2304/07—Facilitating assembling or mounting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2410/00—Constructional features of vehicle sub-units
    • B60Y2410/102—Shaft 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

본 발명은 자동차용 스티어링칼럼의 완충장치에 관한 것으로, 그 목적은 아우터튜브와 인너튜브를 볼트로 조립이 가능하게 연결하는 스티어링칼럼의 완충장치를 제공하는 것이며, 차량 충돌시 충돌에너지를 완충할 수 있도록 아우터튜브와 인너튜브로 구성된 칼럼튜브는 분리와 충격흡수가 가능하도록 마련되고, 상기 아우터튜브(111)의 둘레에는 원주방향으로 나사산이 가공된 삽입구멍(111a)이 형성되며, 상기 삽입구멍(111a)에는 머리부와 몸체부로 구성된 볼트(113)가 치합되고, 상기 볼트(113)의 몸체부 밑면을 상기 인너튜브(112)의 외주면에 압입하여 구비하는 구성이다.The present invention relates to a shock absorber of a steering column for a vehicle, and an object thereof is to provide a shock absorber of a steering column which is capable of assembling an outer tube and an inner tube with a bolt, and can cushion a collision energy during a vehicle crash. The column tube consisting of the outer tube and the inner tube so as to be separated and shock absorbing is provided, the periphery of the outer tube 111 is formed with an insertion hole 111a threaded in the circumferential direction, the insertion hole ( A bolt 113 composed of a head part and a body part is engaged with the 111a), and a bottom surface of the body part of the bolt 113 is pressed into the outer circumferential surface of the inner tube 112.

Description

스티어링칼럼의 완충장치{BUFFERING DEVICE OF STEERING COLUMN}BUFFERING DEVICE OF STEERING COLUMN}

도 1은 종래 스티어링칼럼의 조립단면도이다.1 is an assembled cross-sectional view of a conventional steering column.

도 2는 본 발명에 따른 스티어링칼럼의 분해사시도이다.2 is an exploded perspective view of a steering column according to the present invention.

도 3은 본 발명에 따른 스티어링칼럼의 조립단면도이다.3 is an assembled sectional view of a steering column according to the present invention.

*도면의 주요 부분에 대한 부호의 설명* * Description of the symbols for the main parts of the drawings *

101 : 제1조향축 102 : 제2조향축 101: first steering shaft 102: second steering shaft

111 : 아우터튜브 111a : 삽입구멍111: outer tube 111a: insertion hole

112 : 인너튜브 113 : 볼트112: inner tube 113: bolt

본 발명은 스티어링칼럼의 완충장치에 관한 것으로, 보다 상세하게는 칼럼튜브를 볼트로 연결하여 차량의 충돌시 조향장치를 통해 운전석으로 가해지는 충격에너지를 완충시키기 위한 스티어링칼럼의 완충장치에 관한 것이다.The present invention relates to a shock absorber of the steering column, and more particularly, to a shock absorber of the steering column for buffering the impact energy applied to the driver's seat through the steering device in the event of a collision of the vehicle by connecting the column tube with a bolt.

일반적으로 차량용 조향장치는 운전자의 조작에 따라 차량의 진행방향을 바꿀 수 있도록 마련되며, 조향핸들의 회전력이 스티어링칼럼의 조향주축을 통하여 유니버설조인트에 전달되고, 이 유니버설조인트에 전달된 조향핸들의 회전력은 랙과 피니언을 통하여 바퀴로 전달되어 챠량을 조향할 수 있게 된다.In general, the steering device for a vehicle is provided to change the driving direction of the vehicle according to the driver's operation, and the rotational force of the steering wheel is transmitted to the universal joint through the steering shaft of the steering column, and the rotational force of the steering wheel transmitted to the universal joint. Is transmitted to the wheels through the rack and pinion to steer the vehicle.

여기서, 상기 스티어링칼럼은 충돌로 인해 조향장치에 충격이 가해질 때 발생되는 1차 충격에너지와 관성에 의해 운전자가 조향핸들에 부딪힘으로 발생되는 제2차 충격에너지를 흡수하기 위하여 완충장치를 구비한다.Here, the steering column is provided with a shock absorber to absorb the secondary impact energy generated by the driver hit the steering wheel by the primary impact energy and inertia generated when the impact is applied to the steering device due to the collision.

도 1은 이러한 종래 스티어링칼럼의 완충장치의 조립단면도이다.  1 is an assembled cross-sectional view of a shock absorber of such a conventional steering column.

이에 도시된 바와 같이 제1조향축(11)과 제2조향축(12)으로 구성된 조향주축(1)과, 상기 조향주축(1)을 수용하며 아우터튜브(21)와 인너튜브(22)가 결합된 칼럼튜브(2)로 구성되어 있다.       As shown therein, a steering spindle 1 composed of the first steering shaft 11 and the second steering shaft 12 and the steering spindle 1 are accommodated, and the outer tube 21 and the inner tube 22 are accommodated. It consists of a combined column tube (2).

여기서, 상기 조향주축(1)에서 상기 제1조향축(11)은 외주면에 수 세레이션을 구비하고 있고, 상기 제2조향축(12)은 상기 제1조향축(11)의 수 세레이션에 대응하는 암 세레이션이 내주면에 형성되어 있어 상기 제1조향축(11)과 상기 제2조향축(12)의 세레이션이 치합되어 회전력을 전달한다.       Here, in the steering spindle 1, the first steering shaft 11 has several serrations on the outer circumferential surface, and the second steering shaft 12 has several serrations of the first steering shaft 11. Corresponding arm serrations are formed on the inner circumferential surface so that the serrations of the first steering shaft 11 and the second steering shaft 12 are engaged to transmit rotational force.

또한, 상기 칼럼튜브(2)는 끝단부에 확장부(21a)가 구비되는 아우터튜브(21)와 이에 대응하는 부분에 축소부(22a)가 구비되는 인너튜브(22)에서 상기 확장부(21a)와 상기 축소부가(22a) 형성하는 결합부(24)에 볼(23)을 삽입하고 플라스틱으로 몰딩하여 상기 볼(24)을 고정시킨다.In addition, the column tube 2 has an extension portion 21a in the outer tube 21 having an extension portion 21a at an end thereof and an inner tube 22 having a reduction portion 22a at a corresponding portion thereof. ) And the ball 23 is inserted into the coupling part 24 formed by the reduction part 22a and molded in plastic to fix the ball 24.

한편 상기 결합부(24)에서는 차량이 충돌하여 조향장치에 충격을 가할 때 상기 확장부(21a)의 볼(23)이 상기 결합부(24)의 아우터튜브(21) 확장부(21a)와 인너튜브(22) 축소부(22a)에 압입되어 이동함으로 충격에너지를 완충시켜준다. Meanwhile, in the coupling part 24, when the vehicle collides to impact the steering device, the ball 23 of the extension part 21a is inner with the outer tube 21 extension part 21a of the coupling part 24. The tube 22 is pressed into the reduced portion 22a to cushion the impact energy.                         

그러나, 상기 볼이 수용되어 있는 결합부의 플라스틱 몰딩이 조향장치를 사용함에 따라 마찰과 온도변화로 인해 수축확장을 계속하여 헐거워져 볼이 구르기 시작하는 충격에너지가 일정치 않아 미미한 충돌에도 볼이 탈락되고 충돌이 없음에도 기온이 높을 때 플라스틱 몰딩이 연화되어 볼이 탈락되는 문제점이 있다.      However, as the plastic molding of the coupling part in which the ball is accommodated uses a steering device, the expansion and contraction of the ball continues to loosen due to friction and temperature change, so that the impact energy at which the ball starts to roll is not constant, so that the ball is dropped even in a slight collision. Even if there is no collision, there is a problem that the ball is dropped because the plastic molding softens when the temperature is high.

또한, 스티어링칼럼을 조립할 때 몰딩기가 필요함으로 비용이 증가하고 플라스틱이 경화될 시간이 필요하여 작업시간이 늘어난다.       In addition, a molding machine is required when assembling the steering column, which increases the cost and the time required for the plastic to harden, thereby increasing the working time.

본 발명은 이와 같은 종래의 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 아우터튜브와 인너튜브를 볼트로 조립이 가능하게 연결하는 스티어링칼럼의 완충장치를 제공하는 것이다.      The present invention is to solve such a conventional problem, it is an object of the present invention to provide a shock absorbing device of the steering column for assembling the outer tube and the inner tube to be assembled by bolts.

위와 같은 목적을 달성하기 위한 본 발명의 스티어링칼럼의 완충장치는, 차량 충돌시 충돌에너지를 완충할 수 있도록 아우터튜브와 인너튜브로 구성된 칼럼튜브가 분리와 충격흡수가 가능하도록 마련되고, 상기 아우터튜브(111)의 둘레에 원주방향으로 나사산이 가공된 삽입구멍(111a)이 형성되고, 상기 삽입구멍(111a)에는 머리부와 몸체부로 구성된 볼트(113)가 치합되며, 상기 볼트(113)의 몸체부 밑면을 상기 인너튜브(112)의 외주면에 압입하여 구비하는 것을 특징으로 한다.The buffering device of the steering column of the present invention for achieving the above object is provided with a column tube consisting of an outer tube and an inner tube to be separated and shock absorption so as to buffer the collision energy during a vehicle crash, the outer tube An insertion hole 111a threaded in the circumferential direction is formed around the periphery 111, and the insertion hole 111a is fitted with a bolt 113 composed of a head part and a body part, and a body of the bolt 113. The bottom surface of the inner tube 112 is characterized in that it is provided by pressing the outer peripheral surface.

이하에서는 본 발명의 바람직한 일실실예를 첨부한 도면을 참조하여 상세히 설명한다. Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

도 2는 본 발명에 따른 스티어링칼럼의 분해사시도 이고, 도 3은 본 발명에 따른 스티어링칼럼의 조립단면도이다.       2 is an exploded perspective view of a steering column according to the present invention, Figure 3 is an assembled cross-sectional view of the steering column according to the present invention.

도면에 도시된 바와 같이, 제1조향축(101)과 제2조향축(102)으로 구성된 조향주축(100)과, 상기 조향주축(100)을 수용하며 아우터튜브(111)와 인너튜브(112)가 결합된 칼럼튜브(2)로 구성되어 있다.        As shown in the figure, a steering spindle 100 including the first steering shaft 101 and the second steering shaft 102 and the steering spindle 100 accommodate the outer tube 111 and the inner tube 112. ) Is composed of a combined column tube (2).

여기서, 상기 아우터튜브(111)는 네 개의 삽입구멍(111a)이 원주둘레에 형성되어있고 상기 네 개의 삽입구멍(111a)에는 나사산이 형성되어있다.      Here, the outer tube 111 is formed with four insertion holes 111a around the circumference and a thread is formed in the four insertion holes 111a.

그리고 상기 삽입구멍(111a)에 형성된 나사산에 대응하도록 나사산이 형성되어 있으며 머리부와 몸체부로 구성된 볼트(113)를 상기 삽입구멍에 치합하고, 상기 치합된 볼트(113)를 상기 인너튜브(112)의 외주면에 압입되도록 조인다.      The screw thread is formed to correspond to the screw thread formed in the insertion hole 111a, and the bolt 113 including the head and the body part is engaged with the insertion hole, and the engaged bolt 113 is fitted into the inner tube 112. To be pressed into the outer circumferential surface of the

한편 상기 칼럼튜브(110)에 수용된 상기 조향주축(100)에서 상기 제1조향축(101)은 외주면에 수 세레이션을 구비하고 있고, 상기 제2조향축(102)은 상기 제1조향축(101)의 수 세레이션에 대응하는 암 세레이션이 내주면에 형성되어 있어, 상기 제1조향축(101)과 상기 제2조향축(102)의 암·수 세레이션이 치합되어 회전력을 전달한다.       On the other hand, in the steering shaft 100 accommodated in the column tube 110, the first steering shaft 101 is provided with several serrations on the outer circumferential surface, the second steering shaft 102 is the first steering shaft ( A female serration corresponding to the male serration of 101 is formed on the inner circumferential surface, and the male and female serrations of the first steering shaft 101 and the second steering shaft 102 are engaged to transfer the rotational force.

이와같이 구성된 본 발명 스티어링칼럼의 완충장치는, 차량 충돌시 조향장치에 충격이 왔을 때 상기 아우터튜브의 삽입구멍에 치합된 볼트의 전단방향으로 충격이 작용하여 상기 볼트의 밑면이 인너튜브의 외주면과 마찰하며 이동함으로 충격에너지를 흡수한다.       The shock absorber of the steering column of the present invention configured as described above has an impact in the shear direction of the bolt engaged with the insertion hole of the outer tube when the steering device receives an impact, so that the bottom of the bolt rubs against the outer circumferential surface of the inner tube. It absorbs impact energy by moving.

이상에서 설명한 바와 같이, 본 발명에 따른 스티어링칼럼의 완충장치는 차 량 충돌시 조향장치에 가해지는 충격에너지를 흡수하고 온도변화에 따른 마찰력이 큰 변화가 없어 일정한 충격하중에 볼트의 이동이 일어남으로 제품의 신뢰성이 향상되고 몰딩이 필요없어 작업시간을 줄일 수 있다. As described above, the shock absorber of the steering column according to the present invention absorbs the impact energy applied to the steering device during a vehicle collision, and there is no large change in friction force due to temperature change, so that the bolt moves under a constant impact load. Product reliability is improved and no molding is required, which reduces work time.

Claims (1)

차량 충돌시 충돌에너지를 완충할 수 있도록 아우터튜브와 인너튜브로 구성된 칼럼튜브가 분리와 충격흡수가 가능하도록 마련된 스티어링칼럼에 있어서,In the steering column provided to separate and shock absorbing the column tube consisting of the outer tube and the inner tube to buffer the collision energy in the event of a vehicle crash, 상기 아우터튜브(111)의 둘레에 원주방향으로 나사산이 가공된 삽입구멍(111a)이 형성되고, 상기 삽입구멍(111a)에는 머리부와 몸체부로 구성된 볼트(113)가 치합되며, 상기 볼트(113)의 몸체부 밑면을 상기 인너튜브(112)의 외주면에 압입하여 구비하는 것을 특징으로 하는 스티어링칼럼의 완충장치. An insertion hole 111a is formed around the outer tube 111 in a circumferential direction, and a bolt 113 composed of a head part and a body part is engaged with the insertion hole 111a. Shock absorber of the steering column, characterized in that the bottom surface of the body portion is provided by pressing the outer peripheral surface of the inner tube (112).
KR1020000042730A 2000-07-25 2000-07-25 Buffering device of steering column KR100620870B1 (en)

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KR100620870B1 true KR100620870B1 (en) 2006-09-13

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0710998Y2 (en) * 1988-11-30 1995-03-15 富士機工株式会社 Steering column device
KR19990029251A (en) * 1997-09-01 1999-04-26 마리안느 스지라게, 리차드 퍼러 Apparatus for butt welding articles made of thermoplastic materials
KR20000001811A (en) * 1998-06-15 2000-01-15 가나자와 요쿠 Slot machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0710998Y2 (en) * 1988-11-30 1995-03-15 富士機工株式会社 Steering column device
KR19990029251A (en) * 1997-09-01 1999-04-26 마리안느 스지라게, 리차드 퍼러 Apparatus for butt welding articles made of thermoplastic materials
KR20000001811A (en) * 1998-06-15 2000-01-15 가나자와 요쿠 Slot machine

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