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KR100901626B1 - Steering Column Locking Device - Google Patents

Steering Column Locking Device Download PDF

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Publication number
KR100901626B1
KR100901626B1 KR1020070092681A KR20070092681A KR100901626B1 KR 100901626 B1 KR100901626 B1 KR 100901626B1 KR 1020070092681 A KR1020070092681 A KR 1020070092681A KR 20070092681 A KR20070092681 A KR 20070092681A KR 100901626 B1 KR100901626 B1 KR 100901626B1
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South Korea
Prior art keywords
steering column
cam groove
spur gear
locking
worm gear
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KR1020070092681A
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Korean (ko)
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KR20090027449A (en
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김민호
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현대자동차주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R25/00—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles
    • B60R25/01—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens
    • B60R25/02—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism
    • B60R25/021—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch
    • B60R25/0215—Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch using electric means, e.g. electric motors or solenoids
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H1/00—Toothed gearings for conveying rotary motion
    • F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
    • F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
    • F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Lock And Its Accessories (AREA)

Abstract

본 발명은 모터와, 상기 모터의 회전에 의해 회동되는 웜기어와, 상기 웜기어와 치합되고 몸체부에 캠홈이 형성된 스퍼기어와, 상기 스퍼기어에 형성된 캠홈을 따라 이동되어 직선왕복운동하는 캠핀의 작동에 의해 스티어링 컬럼을 록킹하거나 언록킹하는 록킹바로 구성된 스티어링 컬럼 록킹장치에 있어서, 상기 캠홈은 상기 스퍼기어의 연속회전이 가능토록 가장 외측이 상기 스퍼기어의 원주방향으로 연속되어 형성되고, 상기 가장 외측의 캠홈에는 후단으로 갈수록 높이가 높아지고 단면적이 작아지는 경사부가 형성됨으로써, 웜기어의 셀프블록 현상이 방지됨과 아울러 모터의 오작동이 방지되는 스티어링 컬럼 록킹장치에 관한 것이다.The present invention relates to a motor, a worm gear rotated by the rotation of the motor, a spur gear meshed with the worm gear and formed with a cam groove in the body, and a cam pin moved along a cam groove formed in the spur gear for linear reciprocating motion. In the steering column locking device comprising a locking bar for locking or unlocking the steering column, the cam groove is the outermost continuously formed in the circumferential direction of the spur gear so that the continuous rotation of the spur gear is possible, Since the cam groove is formed with an inclined portion having a higher height and a smaller cross-sectional area toward the rear end, the self-blocking phenomenon of the worm gear is prevented and the steering column locking device prevents malfunction of the motor.

스티어링 컬럼, 웜기어, 스퍼기어, 캠홈, 캠핀, 록킹바, 셀프블록 Steering Column, Worm Gear, Spur Gear, Cam Groove, Cam Pin, Locking Bar, Self Block

Description

스티어링 컬럼 록킹장치{Steering column locking device}Steering column locking device

본 발명은 스티어링 컬럼 록킹장치에 관한 것으로서, 보다 상세하게는 캠홈의 가장 외측이 스퍼기어의 원주방향으로 연속되어 형성되고, 상기 가장 외측의 캠홈에는 후단으로 갈수록 높이가 높아지고 단면적이 작아지는 경사부가 형성된 스티어링 컬럼 록킹장치에 관한 것이다.       The present invention relates to a steering column locking device, and more particularly, the outermost of the cam groove is continuously formed in the circumferential direction of the spur gear, and the outermost cam groove is formed with an inclined portion having a higher height and a smaller cross-sectional area toward the rear end. It relates to a steering column locking device.

도 1은 종래 기술에 따른 스티어링 컬럼이 도시된 사시도이고, 도 2는 종래 기술에 따른 스티어링 컬럼 록킹장치의 록킹과 언록킹 상태의 사시도이며, 도 3은 종래 기술에 따른 스티어링 컬럼 록킹장치의 캠홈의 형상과 캠핀이 도시된 사시도이다.       1 is a perspective view showing a steering column according to the prior art, Figure 2 is a perspective view of the locking and unlocking state of the steering column locking device according to the prior art, Figure 3 is a cam groove of the steering column locking device according to the prior art Shape and campin are perspective views shown.

일반적으로 스티어링 컬럼(1)에는 핸들, 즉 스티어링 휠이 장착되고, 그밖에 시동키를 삽입시킬 수 있는 키셋(Keyset)과, 각종 램프와 와이퍼등을 작동시킬 수 있는 멀티펑션 스위치가 설치되어 있다. 특히, 상기 스티어링 컬럼(1) 일측에는 스티어링 컬럼 록킹장치가 설치되어 있는데, 이는 도난방지를 위하여 본래의 시동키 외에는 다른 도난기구가 키홈에서 삽입 회전되지 않게 하는 장치이다. 즉, 스티어링 컬럼 록킹장치는 스티어링 컬럼(1)을 록킹시켜서 조향기능을 무력화 시키는 장치이다.In general, the steering column 1 is provided with a steering wheel, that is, a steering wheel, a keyset for inserting a ignition key, and a multifunction switch for operating various lamps and wipers. In particular, a steering column locking device is installed at one side of the steering column 1, which prevents theft mechanism from being inserted into and rotated from the key groove in order to prevent theft. That is, the steering column locking device is a device that disables the steering function by locking the steering column (1).

상기 스티어링 컬럼(1)이 록킹된 상태에서는 엔진의 시동도 불가하게 된다. 물론, 상기 스티어링 컬럼(1)이 록킹된 상태에서, 본래의 시동키를 키셋의 키홈에 삽입 회전시켜 시동을 걸려면, 스티어링 휠을 소정의 힘을 가하여 일방향으로 회전시킴과 아울러 시동키를 회전시키면 상기 스티어링 컬럼(1)은 언록킹이 되어 시동을 걸 수 있게 된다. 즉, 엔진이 가동되고 있을 때는 상기 스티어링 컬럼(1)은 언록킹 상태가 되고, 엔진이 꺼졌을 때는 상기 스티어링 컬럼(1)은 록킹 상태가 된다.When the steering column 1 is locked, starting of the engine is also impossible. Of course, when the steering column 1 is locked, in order to start by inserting and rotating the original ignition key into the keyway of the keyset, the steering wheel is rotated in one direction by applying a predetermined force and the ignition key is rotated. The steering column 1 is unlocked to enable starting. That is, the steering column 1 is in the unlocked state when the engine is running, and the steering column 1 is in the locked state when the engine is turned off.

도 1에 도시된 스티어링 컬럼(1)의 록킹홈(1a)을 구속하여 상기 스티어링 컬럼(1)을 록킹시키는 스티어링 컬럼 록킹장치의 구성을 도 2를 참조하여 살펴보면, 모터(2)와, 상기 모터(2)의 회전에 의해 회동되는 웜기어(3)와, 상기 웜기어(3)와 치합되고 몸체부(4a)에 캠홈(4b)이 형성된 스퍼기어(4)와, 상기 스퍼기어(4)에 형성된 캠홈(4b)과 연동된 캠핀(5a)의 작동에 의해 스티어링 컬럼(1)을 록킹하거나 언록킹하는 록킹바(5)로 구성된다.The configuration of a steering column locking device for locking the steering column 1 by restraining the locking groove 1a of the steering column 1 shown in FIG. 1 will be described with reference to FIG. 2. The worm gear (3) rotated by the rotation of the (2), the spur gear (4) is meshed with the worm gear (3) and the cam groove (4b) is formed in the body portion (4a), and formed on the spur gear (4) It consists of a locking bar (5) for locking or unlocking the steering column (1) by the operation of the cam pin (5a) in conjunction with the cam groove (4b).

상기 캠홈(4b)은 상기 스퍼기어(4)의 몸체부(4a)에 나선형으로 길게 형성되어 상기 캠핀(5a)이 상기 캠홈(4b)을 따라 이동할 때 캠역할을 한다. 즉, 상기 록킹바(5)는 상기 캠핀(5a)이 상기 캠홈(4b)을 따라 이동될 때 직선왕복운동을 하게 된다.The cam groove 4b is spirally formed in the body portion 4a of the spur gear 4 to serve as a cam when the cam pin 5a moves along the cam groove 4b. That is, the locking bar 5 has a linear reciprocating motion when the cam pin 5a is moved along the cam groove 4b.

상기 스티어링 컬럼(1)은, 상기 스티어링 컬럼(1)의 록킹홈(1a)에 상기 록킹바(5)의 선단(5b)이 삽입되거나 이탈되어 록킹되거나 언록킹된다.The steering column 1 is locked or unlocked by inserting or detaching the tip 5b of the locking bar 5 into the locking groove 1a of the steering column 1.

상기와 같이 구성된 종래의 스티어링 컬럼 록킹장치의 동작을 설명하면 다음과 같다.Referring to the operation of the conventional steering column locking device configured as described above are as follows.

엔진이 꺼진 상태 즉, 스티어링 컬럼(1)이 록킹상태에서, 엔진의 시동을 켜기 위해 스마트키를 작동시키거나 운전석에서 키를 전원 온(ON)에 위치시키면 모터(2)가 회전되고, 상기 모터(2)의 회전에 의해 웜기어(3)도 회전된다.When the engine is turned off, that is, when the steering column 1 is locked, when the smart key is operated to turn on the engine or the key is turned on in the driver's seat, the motor 2 is rotated. The worm gear 3 also rotates by the rotation of (2).

상기 웜기어(3)가 회전하면 이와 치합된 스퍼기어(4)가 회전되고, 이때 록킹바(5)에 형성된 캠핀(5a)은 상기 스퍼기어(4)의 몸체부(4a)에 형성된 캠홈(4b)을 따라 이동하여 상기 캠홈(4b)의 끝단(4c)에 걸려서 멈추게 된다. 상기 캠핀(5a)이 상기 캠홈(4b)을 따라 이동하는 동안, 상기 록킹바(5)는 상기 스티어링 컬럼(1)의 록킹홈(1a)에서 이탈되어 상기 스티어링 컬럼(1)을 언록킹시킨다.When the worm gear 3 rotates, the spur gear 4 engaged with the worm gear 3 rotates, and the cam pin 5a formed on the locking bar 5 is the cam groove 4b formed on the body portion 4a of the spur gear 4. ) Is moved along and stopped by the end (4c) of the cam groove (4b). While the cam pin 5a moves along the cam groove 4b, the locking bar 5 is released from the locking groove 1a of the steering column 1 to unlock the steering column 1.

한편, 상기 스티어링 컬럼(1)의 록킹은 상기 모터(2)의 역회전에 의해 이루어지며, 그 동작을 살펴보면 다음과 같다.On the other hand, the locking of the steering column (1) is made by the reverse rotation of the motor (2), look at the operation as follows.

먼저, 엔진의 시동을 끄기 위해 스마트키를 작동시키거나 운전석에서 키를 돌려 오프(OFF)에 위치시키면, 모터(2)가 역회전하게 되고, 상기 모터(2)의 역회전에 의해 웜기어(3)도 역회전된다.First, when the smart key is operated to turn off the engine or the key is turned off from the driver's seat, the motor 2 rotates in reverse, and the worm gear 3 is rotated by the reverse rotation of the motor 2. ) Is also reversed.

상기 웜기어(3)가 역회전하면 이와 치합된 스퍼기어(4)가 역회전되고, 이때 록킹바(5)에 형성된 캠핀(5a)은 상기 스퍼기어(4)의 몸체부(4a)에 형성된 캠홈(4b) 을 따라 이동하게 되고, 이에 따라 상기 록킹바(5)의 선단(5b)은 상기 스티어링 컬럼(1)의 록킹홈(1a)에 삽입되어 상기 스티어링 컬럼(1)을 록킹시킨다.When the worm gear 3 is reversely rotated, the spur gear 4 engaged with the worm gear 3 is reversely rotated, and the cam pin 5a formed at the locking bar 5 is a cam groove formed at the body portion 4a of the spur gear 4. It moves along 4b, whereby the leading end 5b of the locking bar 5 is inserted into the locking groove 1a of the steering column 1 to lock the steering column 1.

그러나, 종래 기술에 따른 스티어링 컬럼 록킹장치는 스퍼기어에 형성된 캠홈의 끝단에 상기 캠핀이 갑작스럽게 걸림에 따라 웜기어가 스퍼기어에 꽉 맞물리는 현상인 셀프블록현상이 발생되고, 상기 셀프블록현상이 발생되면 모터는 회전과 역회전을 반복하면서 오작동을 일으키며, 이에 따라 상기 스티어링 컬럼의 언록킹이 어려워지고 엔진의 시동도 어려지는 문제점이 있다.However, in the steering column locking device according to the prior art, the self-blocking phenomenon occurs that the worm gear is tightly engaged with the spur gear as the cam pin is suddenly caught at the end of the cam groove formed in the spur gear. If the motor repeats the rotation and reverse rotation to cause a malfunction, there is a problem that the unlocking of the steering column is difficult and the engine is also difficult to start.

특히, 스마트키 차량의 경우 상술한 바와 같이, 스티어링 컬럼의 언록킹이 어려워지면 엔진의 시동이 걸리지 않아서, 스마트키를 활용하지 못하는 문제점이 있다.In particular, as described above, in the case of a smart key vehicle, when the unlocking of the steering column becomes difficult, the engine does not start and there is a problem in that the smart key cannot be utilized.

본 발명은 웜기어의 셀프블록 현상이 방지됨과 아울러 모터의 오작동이 방지되는 스티어링 컬럼 록킹장치를 제공하는데 그 목적이 있다.SUMMARY OF THE INVENTION An object of the present invention is to provide a steering column locking device in which a self-blocking phenomenon of a worm gear is prevented and a malfunction of a motor is prevented.

본 발명은 모터와, 상기 모터의 회전에 의해 회동되는 웜기어와, 상기 웜기어와 치합되고 몸체부에 캠홈이 형성된 스퍼기어와, 상기 스퍼기어에 형성된 캠홈을 따라 이동되어 직선왕복운동하는 캠핀의 작동에 의해 스티어링 컬럼을 록킹하거나 언록킹하는 록킹바로 구성된 스티어링 컬럼 록킹장치에 있어서, 상기 캠홈은 상기 스퍼기어의 연속회전이 가능토록 가장 외측이 상기 스퍼기어의 원주방향으로 연속되어 형성되고, 상기 가장 외측의 캠홈에는 후단으로 갈수록 높이가 높아지고 단면적이 작아지는 경사부가 형성되는 스티어링 컬럼 록킹장치를 제공한다.The present invention relates to a motor, a worm gear rotated by the rotation of the motor, a spur gear meshed with the worm gear and formed with a cam groove in the body, and a cam pin moved along a cam groove formed in the spur gear for linear reciprocating motion. In the steering column locking device comprising a locking bar for locking or unlocking the steering column, the cam groove is the outermost continuously formed in the circumferential direction of the spur gear so that the continuous rotation of the spur gear is possible, The cam groove provides a steering column locking device in which an inclined portion having a higher height and a smaller cross-sectional area is formed toward the rear end.

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본 발명은 모터와, 상기 모터의 회전에 의해 회동되는 웜기어와, 상기 웜기어와 치합되고 몸체부에 캠홈이 형성된 스퍼기어와, 상기 스퍼기어에 형성된 캠홈을 따라 이동되어 직선왕복운동하는 캠핀의 작동에 의해 스티어링 컬럼을 록킹하거나 언록킹하는 록킹바로 구성된 스티어링 컬럼 록킹장치에 있어서, 상기 캠홈은 상기 스퍼기어의 연속회전이 가능토록 가장 외측이 상기 스퍼기어의 원주방향으로 연속되어 형성되고, 상기 가장 외측의 캠홈에는 후단으로 갈수록 높이가 높아지고 단면적이 작아지는 경사부가 형성되어, 웜기어의 셀프블록 현상이 방지됨과 아울러 모터의 오작동이 방지되는 효과가 있다.The present invention relates to a motor, a worm gear rotated by the rotation of the motor, a spur gear meshed with the worm gear and formed with a cam groove in the body, and a cam pin moved along a cam groove formed in the spur gear for linear reciprocating motion. In the steering column locking device comprising a locking bar for locking or unlocking the steering column, the cam groove is the outermost continuously formed in the circumferential direction of the spur gear so that the continuous rotation of the spur gear is possible, The cam groove has an inclined portion having a higher height and a smaller cross-sectional area toward the rear end, thereby preventing the self-blocking phenomenon of the worm gear and preventing the malfunction of the motor.

상기한 효과가 있는 본 발명의 실시 예를 첨부된 도면을 참조하여 상세히 설명한다.       An embodiment of the present invention having the above-described effect will be described in detail with reference to the accompanying drawings.

도 4는 본 발명에 따른 스티어링 컬럼이 도시된 사시도이고, 도 5는 본 발명에 따른 스티어링 컬럼 록킹장치의 록킹과 언록킹 상태의 사시도이며, 도 6은 본 발명에 따른 스티어링 컬럼 록킹장치의 캠홈의 형상과 캠핀이 도시된 사시도이다.       Figure 4 is a perspective view of a steering column according to the present invention, Figure 5 is a perspective view of the locking and unlocking state of the steering column locking device according to the invention, Figure 6 is a cam groove of the steering column locking device according to the invention Shape and campin are perspective views shown.

본 발명은 모터(20)와, 상기 모터(20)의 회전에 의해 회동되는 웜기어(30)와, 상기 웜기어(30)와 치합되고 몸체부(41)에 캠홈(42)이 형성된 스퍼기어(40)와, 상기 스퍼기어(40)에 형성된 캠홈(42)을 따라 이동되어 직선왕복운동하는 캠핀(51)의 작동에 의해 스티어링 컬럼(10)을 록킹하거나 언록킹하는 록킹바(50)로 구성된다.The present invention is a spur gear 40 in which a cam groove 42 is formed in the body portion 41 and meshes with the worm gear 30 and the worm gear 30 rotated by the rotation of the motor 20, the motor 20. ) And a locking bar 50 which locks or unlocks the steering column 10 by the operation of the cam pin 51 which is moved along the cam groove 42 formed in the spur gear 40 and linearly reciprocates. .

상기 캠홈(42)은 상기 스퍼기어(40)의 연속회전이 가능토록 가장 외측이 상기 스퍼기어(40)의 원주방향으로 연속되어 형성되고, 상기 가장 외측의 캠홈(42)에는 후단으로 갈수록 높이가 높아지고 단면적이 작아지는 경사부(42a)가 형성된다.       The cam groove 42 is continuously formed in the circumferential direction of the spur gear 40 so that continuous rotation of the spur gear 40 is possible, and the height is increased toward the rear end of the outermost cam groove 42. An inclined portion 42a that is higher and smaller in cross section is formed.

상기 캠홈(42)은 상기 스퍼기어(40)의 몸체부(41)에 나선형으로 길게 형성되고 끝단부에 상기 경사부(42a)가 형성되어, 상기 캠핀(51)이 상기 캠홈(42)을 이동할 때 캠역할을 한다. 즉, 상기 록킹바(50)는 상기 캠핀(51)이 상기 캠홈(42)을 따라 이동될 때 직선왕복운동을 하게 된다.      The cam groove 42 is spirally formed in the body portion 41 of the spur gear 40 and the inclined portion 42a is formed at the end thereof, so that the cam pin 51 moves the cam groove 42. When playing cam. That is, the locking bar 50 is a linear reciprocating motion when the cam pin 51 is moved along the cam groove 42.

상기 캠핀(51)은, 상기 캠핀(51)이 상기 경사부(42a)에 위치했을 때 상기 록킹바(50)가 수평을 유지하면서 상기 스티어링 컬럼(10)을 언록킹하기 위한 스프링(51a)이 형성된다. 즉, 상기 스프링(51a)은 후단으로 갈수록 높이가 높아지는 상기 경사부(42a)를 이동하면서 점점 압착되어 상기 캠핀(51)을 일정 길이로 유지되게 함으로써, 상기 록킹바(50)가 수평을 유지하면서 직선왕복운동을 하게 한다.      The cam pin 51 has a spring 51a for unlocking the steering column 10 while the locking bar 50 is horizontal when the cam pin 51 is positioned on the inclined portion 42a. Is formed. That is, the spring 51a is gradually compressed while moving the inclined portion 42a, the height of which is increased toward the rear end, thereby keeping the cam pin 51 at a predetermined length, thereby keeping the locking bar 50 horizontal. Have a straight reciprocating exercise.

상기 경사부(42a)는, 상기 캠핀(51)이 상기 경사부(42a)의 후단을 지난 후 상기 캠홈(42)으로 복귀하도록 후단으로 갈수록 단면적이 작아지게 형성된다. 즉, 상기 캠핀(51)은 상기 캠홈(42)의 경사부(42a)를 지나 원위치로 복귀함으로써, 상기 스퍼기어(40)의 연속회전을 가능하게 하고 상기 웜기어(30)가 상기 스퍼기어(40)와 꽉 맞물리는 현상인 셀프블록현상을 방지한다.      The inclined portion 42a is formed such that the cross section becomes smaller toward the rear end so that the cam pin 51 returns to the cam groove 42 after passing the rear end of the inclined portion 42a. That is, the cam pin 51 returns to its original position after passing through the inclined portion 42a of the cam groove 42 to enable continuous rotation of the spur gear 40 and the worm gear 30 to the spur gear 40. ), Which prevents the self-blocking phenomenon that is tightly engaged.

상기와 같이 구성된 본 발명의 동작을 살펴보면 다음과 같다.       Looking at the operation of the present invention configured as described above are as follows.

엔진이 꺼진 상태 즉, 스티어링 컬럼(10)이 록킹상태에서, 엔진의 시동을 켜기 위해 스마트키를 작동시키거나 운전석에서 키를 전원 온(ON)에 위치시키면 모터(20)가 회전되고, 상기 모터(20)의 회전에 의해 웜기어(30)도 회전된다.       When the engine is turned off, that is, when the steering column 10 is locked, when the smart key is operated to turn on the engine or the key is placed in the driver's seat, the motor 20 is rotated. The worm gear 30 is also rotated by the rotation of 20.

상기 웜기어(30)가 회전하면 이와 치합된 스퍼기어(40)가 회전되고, 이때 록킹바(50)에 형성된 캠핀(51)은 상기 스퍼기어(40)의 몸체부(41)에 형성된 캠홈(42)을 따라 이동하여 상기 캠홈(42)의 경사부(42a)로 이동한다.When the worm gear 30 rotates, the spur gear 40 engaged with the worm gear 30 rotates, and the cam pin 51 formed on the locking bar 50 has a cam groove 42 formed on the body portion 41 of the spur gear 40. ) Moves along the inclined portion 42a of the cam groove 42.

상기 캠핀(51)이 상기 경사부(42a)를 이동할 때 상기 캠핀(51)에 형성된 스프링(51a)은 점차적으로 압착되면서 상기 캠핀(51)을 일정 길이로 유지시키고, 상기 록킹바(50)가 수평을 유지하면서 상기 록킹바(50)의 선단(52)이 상기 스티어링 컬럼(10)의 록킹홈(11)에서 이탈되어 상기 스티어링 컬럼(10)을 언록킹하게 한다.When the cam pin 51 moves the inclined portion 42a, the spring 51a formed on the cam pin 51 is gradually compressed to maintain the cam pin 51 at a predetermined length, and the locking bar 50 is The front end 52 of the locking bar 50 is separated from the locking groove 11 of the steering column 10 while keeping the level to unlock the steering column 10.

한편, 상기 스티어링 컬럼(10)의 록킹은 상기 모터(20)의 역회전에 의해 이루어지며, 그 동작을 살펴보면 다음과 같다.On the other hand, the locking of the steering column 10 is made by the reverse rotation of the motor 20, looking at the operation as follows.

먼저, 엔진의 시동을 끄기 위해 스마트키를 작동시키거나 운전석에서 키를 돌려서 오프(OFF)에 위치시키면, 모터(20)가 역회전하게 되고, 상기 모터(20)의 역회전에 의해 웜기어(30)도 역회전된다.First, when the smart key is operated to turn off the engine or turned to the OFF position by turning the key in the driver's seat, the motor 20 is reversely rotated and the worm gear 30 is rotated by the reverse rotation of the motor 20. ) Is also reversed.

상기 웜기어(30)가 역회전하면 이와 치합된 스퍼기어(40)가 역회전되고, 이때 록킹바(50)에 형성된 캠핀(51)은 상기 스퍼기어(40)의 몸체부(41)에 형성된 캠홈(42)을 따라 이동하여 경사부(42a)의 측면에 접촉되어서, 가장 외측의 캠홈(42)과 이웃하는 캠홈(42)으로 이동하게 되고, 이에 따라 상기 록킹바(50)의 선단(52)은 상기 스티어링 컬럼(10)의 록킹홈(11)에 삽입되어 상기 스티어링 컬럼(10)을 록킹시킨다.When the worm gear 30 is rotated in reverse, the spur gear 40 engaged with the worm gear 30 rotates in reverse, and at this time, the cam pin 51 formed on the locking bar 50 has a cam groove formed on the body portion 41 of the spur gear 40. It moves along 42 and contacts the side surface of the inclined portion 42a to move to the outermost cam groove 42 and the neighboring cam groove 42, whereby the tip 52 of the locking bar 50. Is inserted into the locking groove 11 of the steering column 10 to lock the steering column 10.

본원 발명에 따른 스티어링 컬럼 록킹장치를 사용하면, 웜기어의 셀프블록 현상이 방지됨과 아울러 모터의 오작동이 방지될 수 있다.       By using the steering column locking device according to the present invention, the self-blocking phenomenon of the worm gear can be prevented and the malfunction of the motor can be prevented.

도 1은 종래 기술에 따른 스티어링 컬럼이 도시된 사시도이다.1 is a perspective view showing a steering column according to the prior art.

도 2는 종래 기술에 따른 스티어링 컬럼 록킹장치의 록킹과 언록킹 상태의 사시도이다.Figure 2 is a perspective view of the locking and unlocking state of the steering column locking device according to the prior art.

도 3은 종래 기술에 따른 스티어링 컬럼 록킹장치의 캠홈의 형상과 캠핀이 도시된 사시도이다.3 is a perspective view showing the shape of the cam groove and the cam pin of the steering column locking device according to the prior art.

도 4는 본 발명에 따른 스티어링 컬럼이 도시된 사시도이다.4 is a perspective view showing a steering column according to the present invention.

도 5는 본 발명에 따른 스티어링 컬럼 록킹장치의 록킹과 언록킹 상태의 사시도이다.5 is a perspective view of the locking and unlocking state of the steering column locking device according to the present invention.

도 6은 본 발명에 따른 스티어링 컬럼 록킹장치의 캠홈의 형상과 캠핀이 도시된 사시도이다.6 is a perspective view of the cam groove and the shape of the cam groove of the steering column locking device according to the present invention.

<도면의 주요 부분에 관한 부호의 설명><Explanation of symbols on main parts of the drawings>

10:스티어링 컬럼 11:록킹홈10: steering column 11: locking groove

20:모터 30:웜기어20: motor 30: worm gear

40:스퍼기어 41:스퍼기어의 몸체부40: spur gear 41: body part of spur gear

42:캠홈 42a:경사부42: cam home 42a: slope

50:록킹바 51:캠핀50: Locking bar 51: Camp pin

51a:스프링 52:록킹바의 선단51a: Spring 52: Tip of the locking bar

Claims (4)

모터와, 상기 모터의 회전에 의해 회동되는 웜기어와, 상기 웜기어와 치합되고 몸체부에 캠홈이 형성된 스퍼기어와, 상기 스퍼기어에 형성된 캠홈을 따라 이동되어 직선왕복운동하는 캠핀의 작동에 의해 스티어링 컬럼을 록킹하거나 언록킹하는 록킹바로 구성된 스티어링 컬럼 록킹장치에 있어서,Steering column by operation of a motor, a worm gear rotated by the rotation of the motor, a spur gear meshed with the worm gear and a cam groove formed in the body portion, and a cam pin moved in a linear reciprocating motion along the cam groove formed in the spur gear. In the steering column locking device consisting of a locking bar for locking or unlocking, 상기 캠홈은, 상기 스퍼기어의 연속회전이 가능토록 가장 외측이 상기 스퍼기어의 원주방향으로 연속되어 형성되고,The cam groove is formed so that the outermost in the circumferential direction of the spur gear so that the continuous rotation of the spur gear is possible, 상기 가장 외측의 캠홈에는, 후단으로 갈수록 높이가 높아지고 단면적이 작아지는 경사부가 형성되는 스티어링 컬럼 록킹장치.Steering column locking device is formed in the outermost cam groove, the inclined portion is increased in height toward the rear end and the cross-sectional area is small. 삭제delete 삭제delete 삭제delete
KR1020070092681A 2007-09-12 2007-09-12 Steering Column Locking Device Expired - Fee Related KR100901626B1 (en)

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EP2716509B1 (en) * 2012-10-04 2016-12-14 U-Shin Deutschland Zugangssysteme GmbH Electrical steering column lock for an automative vehicle
DE102018003614A1 (en) * 2017-05-11 2018-11-15 Marquardt Gmbh Locking device, in particular for a motor vehicle
KR20220135496A (en) * 2021-03-30 2022-10-07 현대자동차주식회사 Apparatus for limitted steering angle in Steer-By-Wire system

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JP2003343696A (en) * 2002-03-20 2003-12-03 Nsk Ltd Reduction gears for electric power steering devices
JP2004106750A (en) * 2002-09-19 2004-04-08 Tokai Rika Co Ltd Steering lock device
JP2005014755A (en) * 2003-06-26 2005-01-20 Tokai Rika Co Ltd Electric steering lock device
JP2006525170A (en) * 2003-05-06 2006-11-09 フーフ・ヒュルズベック・ウント・フュルスト・ゲーエムベーハー・ウント・コンパニー・カーゲー Device for locking the steering shaft of an automobile

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003343696A (en) * 2002-03-20 2003-12-03 Nsk Ltd Reduction gears for electric power steering devices
JP2004106750A (en) * 2002-09-19 2004-04-08 Tokai Rika Co Ltd Steering lock device
JP2006525170A (en) * 2003-05-06 2006-11-09 フーフ・ヒュルズベック・ウント・フュルスト・ゲーエムベーハー・ウント・コンパニー・カーゲー Device for locking the steering shaft of an automobile
JP2005014755A (en) * 2003-06-26 2005-01-20 Tokai Rika Co Ltd Electric steering lock device

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