KR19990019821U - 4-wheel steering for vehicle - Google Patents
4-wheel steering for vehicle Download PDFInfo
- Publication number
- KR19990019821U KR19990019821U KR2019970033218U KR19970033218U KR19990019821U KR 19990019821 U KR19990019821 U KR 19990019821U KR 2019970033218 U KR2019970033218 U KR 2019970033218U KR 19970033218 U KR19970033218 U KR 19970033218U KR 19990019821 U KR19990019821 U KR 19990019821U
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- wheel steering
- gear
- switching
- synchronizer
- center shaft
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- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
차량의 주행조건에 따라 2륜 조향으로 절환 가능하게 하여, 주행 안전성 및 주차성능을 향상시킬 수 있는 차량용 4륜 조향장치를 제공하기 위하여,In order to be able to switch to two-wheel steering according to the driving conditions of the vehicle, to provide a four-wheel steering device for vehicles that can improve driving safety and parking performance,
앞바퀴와 연결되는 전륜 조향기어와, 뒷바퀴와 연결되는 후륜 조향기어와, 상기 전륜 조향기어와 연결된 피니언 기어 샤프트와, 후륜 조향기어와 연결된 센터 샤프트를 포함하는 4륜 조향장치에 있어서,In a four-wheel steering device comprising a front wheel steering gear connected to the front wheel, a rear wheel steering gear connected to the rear wheel, a pinion gear shaft connected to the front wheel steering gear, and a center shaft connected to the rear wheel steering gear,
상기한 피니언 기어 샤프트와 센터 샤프트 사이에 2륜 조향으로의 절환이 가능하도록 하는 2륜 조향수단이 설치되어짐을 특징으로 하는 차량용 4륜 조향장치를 제공한다.Provided is a four-wheel steering device for a vehicle, characterized in that the two-wheel steering means for switching to two-wheel steering is installed between the pinion gear shaft and the center shaft.
Description
본 고안은 4륜 조향장치에 관한 것으로서, 보다 상세하게는 2륜 조향으로의 절환이 가능한 4륜 조향장치에 관한 것이다.The present invention relates to a four-wheel steering device, and more particularly to a four-wheel steering device capable of switching to two-wheel steering.
일반적으로 4륜 조향장치는 조향핸들의 조작에 의해 전륜 및 후륜을 동시에 조향하는 시스템으로 저속 주행시 회전반경을 작게 할 수 있으며, 고속주행시 차선변경 및 선회시 조종 안정성, 선회안정성을 향상시킬 수 있다.In general, the four-wheel steering system is a system for steering the front wheel and the rear wheel at the same time by operating the steering wheel can reduce the radius of rotation during low-speed driving, it is possible to improve lane stability and turning stability during high-speed driving, turning stability.
이러한 4륜 조향장치는 도 4에 도시된 바와 같이 조향핸들이 설치되고, 앞바퀴(102)와 연결되는 전륜조향기어(104)와, 뒷바퀴(106)과 연결된 후륜 조향기어(108)와, 양측을 연결하는 커넥팅 샤프트(110)로 구성되어 조향핸들의 회전이 전륜 조향기어(104)로 전달되어 앞바퀴(102)를 조향시킴과 동시에 커넥팅 샤프트(110)를 경유하여 후륜 조향기어(108)에 전달되어 뒷바퀴(106)를 조향시킨다.Such a four-wheel steering device is provided with a steering wheel, as shown in FIG. Rotation of the steering wheel is transmitted to the front wheel steering gear 104 to be connected to the front wheel steering gear 104 to be connected to the rear wheel steering gear 108 via the connecting shaft 110 at the same time. Steer the rear wheels 106.
그러나 상기한 바와 같은 4륜 조향장치는 선회반경을 줄일 수 있고, 조정안정성을 향상시킬 수 있는 반면에 2륜 조향장치에 비해 주행안정성 및 주차성능이 저하되는 문제점이 있다.However, the four-wheel steering as described above can reduce the turning radius and improve the stability of the adjustment, while the driving stability and the parking performance are lowered compared to the two-wheel steering.
따라서 본 고안은 상기한 문제점을 해결하기 위하여 안출된 것으로서, 본 고안의 목적은 차량의 주행조건에 따라 2륜 조향으로의 절환 가능하게 하여, 주행 안전성 및 주차성능을 향상시킬 수 있는 차량용 4륜 조향장치를 제공하는데 있다.Therefore, the present invention is devised to solve the above problems, the object of the present invention is to enable switching to two-wheel steering according to the driving conditions of the vehicle, the four-wheel steering for a vehicle that can improve driving safety and parking performance To provide a device.
상기의 목적을 달성하기 위하여 본 고안은 앞바퀴와 연결되는 전륜 조향기어와, 뒷바퀴와 연결되는 후륜 조향기어와, 상기 전륜 조향기어와 연결된 피니언 기어 샤프트와, 후륜 조향기어와 연결된 센터 샤프트를 포함하는 4륜 조향장치에 있어서,In order to achieve the above object, the present invention includes a front wheel steering gear connected to the front wheel, a rear wheel steering gear connected to the rear wheel, a pinion gear shaft connected to the front wheel steering gear, and a center shaft connected to the rear wheel steering gear. In the wheel steering system,
상기한 피니언 기어 샤프트와 센터 샤프트 사이에 2륜 조향으로의 절환이 가능하도록 하는 2륜 조향수단이 설치되어짐을 특징으로 하는 차량용 4륜 조향장치를 제공한다.Provided is a four-wheel steering device for a vehicle, characterized in that the two-wheel steering means for switching to two-wheel steering is installed between the pinion gear shaft and the center shaft.
이와 같은 4륜 조향장치는 차량의 주행조건에 따라 2륜 조향수단에 의해 앞바퀴만 조향하는 2륜 조향을 행한다.Such a four-wheel steering apparatus performs two-wheel steering in which only the front wheel is steered by the two-wheel steering means in accordance with the driving conditions of the vehicle.
도 1은 본 고안에 따른 4륜 조향장치의 사시도.1 is a perspective view of a four-wheel steering device according to the present invention.
도 2는 본 고안에 따른 2륜 조향수단의 평면도.2 is a plan view of a two-wheel steering means according to the present invention.
도 3은 본 고안에 따른 2륜 조향수단의 사용상태도.Figure 3 is a state of use of the two-wheel steering means according to the present invention.
도 4는 종래 기술에 의한 4륜 조향장치의 사시도.4 is a perspective view of a four-wheel steering apparatus according to the prior art.
이하, 첨부 도면을 참조하여 본 고안의 바람직한 일실시예를 상세하게 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the present invention.
도 1은 본 고안에 의한 4륜 조향장치의 구성도로서, 앞바퀴(2)와 연결되고 일측에 조향핸들(미도시)이 설치되는 전륜 조향기어(4)와, 뒷바퀴(6)와 연결되는 후륜 조향기어(8)와, 상기 전륜 조향기어(4)와 연결되는 피니언 기어 샤프트(14)와 상기 후륜 조향기어(8)와 연결되는 센터 샤프트(16)와, 상기 피니언 기어 샤프트(14)와 센터 샤프트(16) 사이에 장착되어 2륜 조향으로의 절환을 행하는 2륜 조향 절환수단(12)을 포함하다.1 is a configuration diagram of a four-wheel steering apparatus according to the present invention, the front wheel steering gear 4 and the rear wheel connected to the front wheel 2 and the steering wheel (not shown) is installed on one side, the rear wheel 6 A steering gear 8, a pinion gear shaft 14 connected to the front wheel steering gear 4, a center shaft 16 connected to the rear wheel steering gear 8, the pinion gear shaft 14 and a center; Two-wheel steering switching means 12 mounted between the shafts 16 for switching to two-wheel steering.
이러한 4륜 조향장치는 조향핸들의 회전력이 전륜 조향기어(4)로 전달되어 앞바퀴(2)를 조향시키고, 이와 동시에 회전력은 피니언 기어 샤프트(14)를 경유하여 센터 샤프트(16)를 통하여 후륜 조향기어(8)로 전달되어 뒷바퀴(6)를 조향시킨다. 이때 상기 2륜 조향절환수단(12)에 의해 4륜 조향에서 2륜 조향으로 절환된다.In this four-wheel steering device, the steering force of the steering wheel is transmitted to the front wheel steering gear 4 to steer the front wheel 2, and at the same time, the rotational force is steered through the center shaft 16 via the pinion gear shaft 14. It is transmitted to the gear 8 to steer the rear wheel 6. At this time, the two-wheel steering switching means 12 is switched from four-wheel steering to two-wheel steering.
도 2는 상기한 2륜 조향 절환수단의 구성을 도시한 평면도로서, 2륜 조향수단은 싱크로나이저 변속기구로서, 피니언 기어 샤프트(14)의 끝단측에 제1기어(18)가 장착되어 같이 회전하고, 센터 샤프트(16)상에 슬라이드 가능하게 장착되는 제2기어(20)가 제1기어(18)와 기어물림하고, 또한 센터 샤프트(18)의 외주연에 싱크로나이저 허브(26)가 스플라인 결합되어 같이 회전하고, 이 싱크로나이저 허브(26)의 외주연 기어부에는 싱크로나이저 슬리브(24)가 축방향으로 이동 가능하도록 치합되고, 이 싱크로나이저 슬리브(24)를 축방향으로 이동시키는 절환조작기구(22)가 싱크로나이저 슬리브(24)의 외주연에 슬립이 이루어지도록 결합된다.2 is a plan view showing the configuration of the two-wheel steering switching means, wherein the two-wheel steering means is a synchronizer transmission mechanism, in which the first gear 18 is mounted on the end side of the pinion gear shaft 14 to rotate together. And the second gear 20 slidably mounted on the center shaft 16 is meshed with the first gear 18, and the synchronizer hub 26 is splined at the outer periphery of the center shaft 18. Combined and rotated together, the outer peripheral gear portion of the synchronizer hub 26 is engaged with the synchronizer sleeve 24 so as to be movable in the axial direction, and the switching operation of moving the synchronizer sleeve 24 in the axial direction. The instrument 22 is coupled to allow slippage to the outer periphery of the synchronizer sleeve 24.
그리고 제2기어(22)의 일측으로 클러치 기어(28)가 형성되어 상기 싱크로나이저 슬리브(24)의 축방향 이동시 싱크로나이저 슬리브(24)의 내주연 기어부에 치합되고, 이 클러치 기어(28)의 일측으로 동기작용시 클러치 작용을 하는 싱크로나이저링(40)이 배치된다.In addition, a clutch gear 28 is formed at one side of the second gear 22 to be engaged with the inner peripheral gear portion of the synchronizer sleeve 24 when the synchronizer sleeve 24 is axially moved. On one side of the synchronizer ring 40 to the clutch action is disposed.
상기한 싱크로나이저 슬리브(24)를 축방향으로 이동시키는 절환조작기구(22)는 싱크로나이저 슬리브(24)의 외주연에 원주방향으로 형성된 가이드홈(36)에 슬라이드 가능하게 장착되는 절환포크(30)와, 이 절환포크(30)를 축방향으로 이동시키는 작동로드(32)와, 작동로드(32)의 일단에 힌지 결합되어 사용자가 절환조작을 행하는 절환레버(34)를 포함한다.The switching operation mechanism 22 for moving the synchronizer sleeve 24 in the axial direction is a switching fork 30 which is slidably mounted in the guide groove 36 formed in the circumferential direction on the outer circumference of the synchronizer sleeve 24. ), An operating rod 32 for moving the switching fork 30 in the axial direction, and a switching lever 34 hinged to one end of the operating rod 32 to perform a switching operation by the user.
도 3은 이러한 2륜 절환수단의 사용상태를 설명한 반단면도로서, 절환레버(34)를 조작하면 작동로드(30)가 축방향으로 이동하면서 절환포크(30)와 결합된 싱크로나이저 슬리브(24)를 도면에서 보다 좌측으로 밀어 싱크로나이저링(40)의 측벽을 밀도록 한다.FIG. 3 is a half sectional view illustrating a state of use of the two-wheel switching means, and when the switching lever 34 is operated, the synchronizer sleeve 24 coupled with the switching fork 30 moves in the axial direction. To the left in the figure to push the side wall of the synchronizer ring 40.
이러한 상태에서 싱크로나이저 슬리브(24)가 계속 이동하면 싱크로나이저링(40)의 내면 나사부가 코운부와 밀착되면서 마찰작용으로 제2기어(20)의 회전력이 센터 샤프트(16)에 전달되지 시작하며, 이의 동작과정으로 싱크로나이저링(40)과 클러치 기어(28)의 기어부가 싱크로나이저 슬리브(24)의 내면 기어부로 들어가면서 치합이 이루어져 피니언 기어 샤프트(14)의 회전력이 센터 샤프트(16)측으로 전달되어 4륜 조향이 행해진다.In this state, if the synchronizer sleeve 24 continues to move, the inner threaded portion of the synchronizer ring 40 comes into close contact with the corner portion, and the rotational force of the second gear 20 is not transmitted to the center shaft 16 by friction. In this operation, gears of the synchronizer ring 40 and the clutch gear 28 enter the inner gear portion of the synchronizer sleeve 24 and are engaged with each other so that the rotational force of the pinion gear shaft 14 is transmitted to the center shaft 16 side. Four-wheel steering is performed.
이와 반대로 절환조작기구(22)에 의해 싱크로나이저 슬리브(24)가 도면에서 보아 우측으로 이동하면 제2기어(20)의 회전력이 센터 샤프트(16)측으로 전달되지 않으므로 앞바퀴만 조향이 행해지는 2륜 조향상태로 된다.On the contrary, when the synchronizer sleeve 24 is moved to the right side by the switching operation mechanism 22, since the rotational force of the second gear 20 is not transmitted to the center shaft 16 side, only the front wheel is steered. Steering.
상기한 바와 같이 이루어진 본 고안에 의한 차량용 4륜 조향장치는 차량의 주행조건에 따라 2륜 조향상태로 절환이 가능하므로서, 주행성능을 향상시키고, 주차성능을 향상시킬 수 있다.Four-wheel steering device for a vehicle according to the present invention made as described above can be switched to the two-wheel steering state according to the driving conditions of the vehicle, thereby improving the driving performance, it is possible to improve the parking performance.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970033218U KR19990019821U (en) | 1997-11-21 | 1997-11-21 | 4-wheel steering for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019970033218U KR19990019821U (en) | 1997-11-21 | 1997-11-21 | 4-wheel steering for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR19990019821U true KR19990019821U (en) | 1999-06-15 |
Family
ID=69676764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019970033218U Withdrawn KR19990019821U (en) | 1997-11-21 | 1997-11-21 | 4-wheel steering for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR19990019821U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116279755A (en) * | 2023-02-16 | 2023-06-23 | 四川农业大学 | On-track Steering System for Wheeled Agricultural Vehicles |
| KR20230106827A (en) * | 2022-01-07 | 2023-07-14 | 주식회사 테스크 | power take off device on rear axle |
| KR20230106826A (en) * | 2022-01-07 | 2023-07-14 | 주식회사 테스크 | power take off device |
| KR20230119904A (en) * | 2022-02-08 | 2023-08-16 | 주식회사 테스크 | A power take-off system that selectively operates a plurality of driving devices according to the engine speed |
| WO2025009631A1 (en) * | 2023-07-04 | 2025-01-09 | 주식회사 테스크 | Power take-off for rear axle |
-
1997
- 1997-11-21 KR KR2019970033218U patent/KR19990019821U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230106827A (en) * | 2022-01-07 | 2023-07-14 | 주식회사 테스크 | power take off device on rear axle |
| KR20230106826A (en) * | 2022-01-07 | 2023-07-14 | 주식회사 테스크 | power take off device |
| KR20230119904A (en) * | 2022-02-08 | 2023-08-16 | 주식회사 테스크 | A power take-off system that selectively operates a plurality of driving devices according to the engine speed |
| CN116279755A (en) * | 2023-02-16 | 2023-06-23 | 四川农业大学 | On-track Steering System for Wheeled Agricultural Vehicles |
| WO2025009631A1 (en) * | 2023-07-04 | 2025-01-09 | 주식회사 테스크 | Power take-off for rear axle |
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|---|---|---|---|
| UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19971121 |
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| UG1501 | Laying open of application | ||
| UC1204 | Withdrawal of no request for examination | ||
| WITN | Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid |