KR100444083B1 - Shaft internal gap absorbing structure of telescopic steering system - Google Patents

Shaft internal gap absorbing structure of telescopic steering system Download PDF

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Publication number
KR100444083B1
KR100444083B1 KR10-2000-0012272A KR20000012272A KR100444083B1 KR 100444083 B1 KR100444083 B1 KR 100444083B1 KR 20000012272 A KR20000012272 A KR 20000012272A KR 100444083 B1 KR100444083 B1 KR 100444083B1
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South Korea
Prior art keywords
shaft
pressing
spline
telescopic steering
fixing device
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KR10-2000-0012272A
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Korean (ko)
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KR20010088187A (en
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이병환
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주식회사 만도
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Publication of KR100444083B1 publication Critical patent/KR100444083B1/en

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Classifications

    • 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
    • B62D1/185—Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically
    • 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
    • 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

Abstract

본 발명은 텔레스코픽 조향장치의 샤프트 유격흡수구조에 대한 것으로서, 작동에 따른 마모나 외부로부터 가해지는 진동에 의해 유격이 발생되더라도 이를 자동적으로 보상하여 항상 원할한 작동을 이룰수 있도록 된 것이다.The present invention relates to a shaft play absorption structure of the telescopic steering device, even if the play is generated by the wear caused by the operation or the vibration from the outside to automatically compensate for this to achieve a smooth operation at all times.

이를 위한 특징적인 실시 수단은 인너·아웃샤프트(1,2)의 스플라인(1a,2a)사이에 탄성력을 매개로 인너샤프트(1)의 스플라인(1a)을 가압 고정하는 고정장치(3)가 구비되되, 이 고정장치(3)는 가압부재(3a)와 가압부시(3b) 및 스프링(3c)으로 이루어 진다.Characteristic implementation means for this is provided with a fixing device (3) for pressing and fixing the spline (1a) of the inner shaft (1) by the elastic force between the splines (1a, 2a) of the inner out shaft (1,2) However, this fixing device 3 is composed of a pressing member (3a), the pressing bush (3b) and the spring (3c).

Description

텔레스코픽 조향장치의 샤프트 유격흡수구조 {SHAFT INTERNAL GAP ABSORBING STRUCTURE OF TELESCOPIC STEERING SYSTEM}Shaft play absorption structure of telescopic steering system {SHAFT INTERNAL GAP ABSORBING STRUCTURE OF TELESCOPIC STEERING SYSTEM}

본 발명은 텔레스코픽 조향장치의 샤프트 유격흡수구조에 대한 것으로서, 특히 차량의 운행중 가해지는 진동으로 인한 샤프트내의 유격발생에 따른 소음을 방지할 수 있도록 된 텔레스코픽 조향장치의 샤프트 유격흡수구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaft play absorption structure of a telescopic steering device, and more particularly, to a shaft play absorption structure of a telescopic steering device which is capable of preventing noise caused by play in the shaft due to vibrations applied during driving of a vehicle.

일반적으로 자동차용 스티어링 칼람에는 운전자의 신체조건에 맞게 핸들의 각도 및 높이를 조절할 수 있도록 되어 있는바, 각도 조절을 위한 장치를 틸트(Tilt)장치라 하고, 높이 조절을 위한 장치를 텔레스코픽(Telescopic)장치라 하며, 이중 텔레스코픽장치는 잠금레버를 돌리면 나사가 회전하게 되고, 회전 방향 및 회전 정도에 따라 샤프트와의 밀착상태가 조절되므로 나사를 풀어준 상태에서 샤프트를 당겨 올리거나 밀어 내릴 수 있게 되며, 반대로 나사를 조여주면 다시 고정되는 것이다.In general, the steering column for automobiles can adjust the angle and height of the steering wheel according to the driver's physical condition. The device for adjusting the angle is called a tilt device, and the device for adjusting the height is called telescopic. The double telescopic device is a screw that rotates when the locking lever is turned, and the state of close contact with the shaft is adjusted according to the rotation direction and the degree of rotation, so that the shaft can be pulled up or pushed down while the screw is released. On the contrary, tighten the screw to fix it again.

즉, 도 1과 도 2에 도시된 바와같이 각각 형성된 스플라인(1a,2a)을 매개로 인너·아웃샤프트(1,2)가 결합되되, 상기 인너샤프트(1)의 스플라인(1a)의 외주면에는 플라스틱재질을 씌운 코팅막(1b, 도2의 코팅막은 실제보다 과도한 두께로 표시됨)을 입혀 아웃샤프트(2)의 스플라인(2a)사이에 발생되는 유격을 보상하게 된다.That is, inner and outer shafts 1 and 2 are coupled to each other via splines 1a and 2a formed as shown in FIGS. 1 and 2, respectively, and on the outer circumferential surface of the spline 1a of the inner shaft 1. The coating film 1b (the coating film shown in FIG. 2 is marked with an excessive thickness) is covered with a plastic material to compensate for the play between the splines 2a of the out shaft 2.

그러나 이와 같은 종래의 텔레스코픽 장치는 텔레스코픽 조작 때 샤프트을 뽑아 올려야 하기 때문에 만약, 인너·아웃샤프트(1,2)의 스플라인(1a,2a)사이에 마모나 외부로부터 가해지는 진동등에 의해 유격(Gab)이 발생되면 그 작동이 잘 이루지지 못하는 문제가 있게 된다.However, such a conventional telescopic device has to pull up the shaft during telescopic operation, so if the gap (Gab) is caused by wear or vibration from the outside between the splines (1a, 2a) of the inner / out shaft (1, 2). If it occurs, there is a problem that the operation is not good.

따라서 본 발명은 상기와 같은 종래의 문제점을 감안하여 이를 해결 보완하고자 발명한 것으로서, 작동에 따른 마모나 외부로부터 가해지는 진동에 의해 유격이 발생되더라도 이를 자동적으로 보상하여 항상 원할한 작동을 이룰수 있도록 된 것이다.Therefore, the present invention has been invented to solve the problem in view of the conventional problems as described above, even if the play is caused by the wear caused by the vibration or vibration from the outside to compensate for this automatically to achieve a smooth operation at all times will be.

이를 위한 특징적인 실시 수단은 인너·아웃샤프트의 스플라인사이에 탄성력을 매개로 인너샤프트의 스플라인을 가압 고정하는 고정장치가 구비되되, 이 고정장치는 가압부재와 가압부시 및 스프링으로 이루어 진다.Characteristic implementation means for this is provided with a fixing device for pressing and fixing the spline of the inner shaft through the elastic force between the splines of the inner / out shaft, the fixing device is composed of a pressing member, the pressing bush and the spring.

도 1은 본 발명에 따른 텔레스코픽 조향장치의 샤프트 유격흡수구조의 부분도1 is a partial view of the shaft play absorption structure of the telescopic steering apparatus according to the present invention

도 2는 도 1의 A-A선 단면도2 is a cross-sectional view taken along the line A-A of FIG.

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

1 : 인너샤프트 1a,2a : 스플라인1: inner shaft 1a, 2a: spline

1b : 코팅막1b: coating film

2 : 아웃샤프트 2b : 개구슬랏2: Out shaft 2b: Opening slot

3 : 고정장치 3a : 가압부재3: fixing device 3a: pressing member

3a' : 중간축 3a" : 가압축3a ': Middle shaft 3a ": Pressing shaft

3b : 가압부시 3c : 스프링3b: Pressing bush 3c: Spring

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 1은 본 발명에 따른 텔레스코픽 조향장치의 샤프트 유격흡수구조의 부분도를 도시한 것인바, 플라스틱재질을 씌운 코팅막(1b)을 형성한 스플라인(1a)을 구비한 인너샤프트(1)가 스플라인(2a)을 형성한 아웃샤프트(2)에 결합되되, 상기 아웃샤프트(2)의 스플라인(2a)측에 길이방향으로 직사각형상의 개구슬랏(2b)에 고정장치(3)가 구비되어 진다.Figure 1 shows a partial view of the shaft play absorption structure of the telescopic steering apparatus according to the present invention, the inner shaft (1) having a spline (1a) formed a coating film (1b) covered with a plastic material is a spline ( It is coupled to the outshaft 2 which formed 2a, and the fixing device 3 is provided in the opening slot 2b of a rectangular shape in the longitudinal direction on the spline 2a side of the outshaft 2.

여기서, 상기 고정장치(3)는 도 2에 도시된 바와 같이, 상기 아웃샤프트(2)의 개구슬랏(2b)에 노출되는 부분에 일체로 형성되면서 서로 다른 직경으로 이루어진 중간축(3a')과 가압축(3a")으로 이루어진 가압부재(3a)와, 이 가압부재(3a)의 가압축(3a")에 의해 인너샤프트(1)의 스플라인(1a)을 가압하는 가압부시(3b) 및 이가압부시(3b)에 탄성력을 가하도록 상기 가압축(3a")에 감겨진 스프링(3c)으로 이루어 진다.Here, as shown in FIG. 2, the fixing device 3 is formed integrally with a portion exposed to the opening slot 2b of the out shaft 2 and has an intermediate shaft 3a 'having different diameters. Pressing member 3a made up of pressing shaft 3a ", pressing bush 3b for pressing the spline 1a of inner shaft 1 by pressing shaft 3a" of pressing member 3a, and valent tooth It consists of a spring (3c) wound on the pressing shaft (3a ") to apply an elastic force to the pressing bush (3b).

따라서, 운전자가 텔레스코픽장치를 조작하기위해 샤프트를 뽑아 올려 조작하게 되고 만약, 장기적인 조작에 의해서나 외부로부터 가해지는 충격이나 진동에 따라 인너샤프트(1)의 스플라인(1a)에 씌워진 코팅막(1b)이 마모되어 유격이 발생되어지면, 상기 고정장치(3)의 스프링(3c)이 발생된 유격많큼 가압부시(3b)를 인너샤프트(1)의 스플라인(1a)쪽으로 밀어 가압하게 되므로 발생된 유격이 제거되고 이로인해 외부로부터 진동이 가해져도 소음이 발생되지 않게 된다.Therefore, the driver pulls out the shaft to operate the telescopic device, and if the coating film 1b is applied to the spline 1a of the inner shaft 1 by long term operation or by shock or vibration applied from the outside, When wear occurs and the play occurs, the play occurs because the spring 3c of the fixing device 3 pushes the press bushing 3b toward the spline 1a of the inner shaft 1 as much as the play occurs. As a result, even if vibration is applied from the outside, noise is not generated.

이때, 상기 고정장치(3)는 초기의 세팅시 스프링(3c)이 충분히 압축 즉, 스플라인(1a)의 코팅막(1b)의 마모에 의해 발생된 유격많큼 가압부시(3b)를 이동시킬 수 있도록 됨은 물론, 상기 가압부재(3a)는 스프링(3c)의 압축에 따른 반발력에 의해 이탈되지 않지만, 이러한 현상은 가압부재(3a)를 개구슬랏(2a)에 어느정도 억지끼움되거나 개구슬랏(2a)과 가압부재(3a)의 중간축(3a')에 각각 홈과 돌출부를 형성하여 기구학적으로 방지할 수 있게 됨은 물론이다.At this time, the fixing device 3 is to be able to move the pressing bush (3b) as much as the clearance generated by the spring 3c at the initial setting, that is, compression, that is, wear of the coating film (1b) of the spline (1a) Of course, the pressing member (3a) is not separated by the repulsive force due to the compression of the spring (3c), but this phenomenon is forcing the pressing member (3a) to the opening slot 2a to some extent or pressurized with the opening slot (2a) Of course, grooves and protrusions are formed in the intermediate shaft 3a 'of the member 3a to be mechanically prevented.

또한, 상기 고정장치(3)는 아웃샤프트(2)의 개구슬랏(2a)을 따라 이동될 수 있음은 물론이다.In addition, the fixing device 3 can of course be moved along the opening slot 2a of the outshaft 2.

이상 상세히 설명한 바와 같은 본 발명은 인너·아웃샤프트의 스플라인사이에 탄성력을 매개로 인너샤프트의 스플라인을 가압 고정하는 고정장치가 구비되어,작동에 따른 마모나 외부로부터 가해지는 진동에 의해 유격이 발생되더라도 이를 자동적으로 보상하여 항상 원할한 작동을 이룰수 있게되는 효과가 있게 된다.The present invention as described in detail above is provided with a fixing device for pressing and fixing the spline of the inner shaft through the elastic force between the splines of the inner and the outer shaft, even if the play caused by the wear caused by the operation or the vibration from the outside It automatically compensates for this, so that you can always achieve the desired operation.

Claims (2)

플라스틱재질을 씌운 코팅막(1b)을 형성한 스플라인(1a)을 구비한 인너샤프트(1)가 스플라인(2a)을 형성한 아웃샤프트(2)에 결합되어진 텔레스코픽 조향장치의 샤프트구조에 있어서,In the shaft structure of a telescopic steering apparatus in which an inner shaft 1 having a spline 1a having a coating film 1b covered with a plastic material is coupled to an out shaft 2 having a spline 2a formed therein, 상기 아웃샤프트(2)의 스플라인(2a)측에 길이방향으로 직사각형상의 개구슬랏(2b)에 탄성력을 매개로 인너샤프트(1)의 스플라인(1a)을 가압하는 고정장치(3)가 구비 되어진 것을 특징으로 하는 텔레스코픽 조향장치의 샤프트 유격흡수구조.On the spline 2a side of the out shaft 2, a fixing device 3 for pressing the spline 1a of the inner shaft 1 with an elastic force is provided to the rectangular opening slot 2b in the longitudinal direction. A shaft playback structure of a telescopic steering device. 제1항에 있어서, 상기 고정장치(3)는 서로 다른 직경의 중간축(3a')과 가압축(3a")으로 이루어진 가압부재(3a)와, 이 가압부재(3a)의 가압축(3a")에 의해 인너샤프트(1)의 스플라인(1a)을 가압하는 가압부시(3b) 및 이 가압부시(3b)에 탄성력을 가하도록 상기 가압축(3a")에 감겨진 스프링(3c)으로 이루어진 것을 특징으로 하는 텔레스코픽 조향장치의 샤프트 유격흡수구조.2. The fixing device (3) according to claim 1, wherein the fixing device (3) comprises a pressing member (3a) consisting of an intermediate shaft (3a ') and a pressing shaft (3a ") of different diameters, and a pressing shaft (3a) of the pressing member (3a). A pressing bush 3b for pressing the spline 1a of the inner shaft 1 by " " and a spring 3c wound around the pressing shaft 3a to apply an elastic force to the pressing bush 3b. Shaft play absorption structure of the telescopic steering device.
KR10-2000-0012272A 2000-03-11 2000-03-11 Shaft internal gap absorbing structure of telescopic steering system KR100444083B1 (en)

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KR100764154B1 (en) * 2001-09-27 2007-10-05 주식회사 만도 Telescopic device of steering column for vehicle
KR100814759B1 (en) * 2007-02-13 2008-03-19 주식회사 만도 Electronic telescopic steering apparatus for vehicle equipped with telescope stopper capable of compensating gap

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KR19990031113U (en) * 1997-12-30 1999-07-26 오상수 Support structure of electric telescopic tube

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Publication number Priority date Publication date Assignee Title
US5640884A (en) * 1993-12-03 1997-06-24 Kabushiki Kaisha Yamada Seisakusho Steering shaft
KR19990031113U (en) * 1997-12-30 1999-07-26 오상수 Support structure of electric telescopic tube

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