CN112543726B - Steering device for a motor vehicle with a non-rotating central unit - Google Patents
Steering device for a motor vehicle with a non-rotating central unit Download PDFInfo
- Publication number
- CN112543726B CN112543726B CN201880095969.8A CN201880095969A CN112543726B CN 112543726 B CN112543726 B CN 112543726B CN 201880095969 A CN201880095969 A CN 201880095969A CN 112543726 B CN112543726 B CN 112543726B
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- steering
- gear
- gear part
- housing
- steering wheel
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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
- B62D1/04—Hand wheels
- B62D1/10—Hubs; Connecting hubs to steering columns, e.g. adjustable
- B62D1/105—Non-rotatable hubs, e.g. the central part of the steering wheel not rotating
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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
- B62D1/184—Mechanisms for locking columns at selected positions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
- B60R21/2032—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns the inflator or inflatable member not being rotatable with the steering wheel; Arrangements using the steering column or steering wheel rim for storing, supplying or evacuating the inflation gas or for storing the inflatable member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/09—Reducing noise
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Steering Controls (AREA)
- Power Steering Mechanism (AREA)
Abstract
The present invention relates to an automobile steering apparatus which provides a non-rotating center unit, to which various electric modules are mounted, at a hub located at the center of a steering wheel so that the electric modules can be conveniently used regardless of a steering angle, the automobile steering apparatus comprising: a housing fixed to a vehicle body; a steering wheel rotatably mounted with respect to the housing; a steering gear assembly mounted to transmit rotation of the steering wheel to the steering shaft; and a non-rotating center unit fixed to the housing and wired with an external harness.
Description
Technical Field
The present invention relates to an automobile steering apparatus having a non-rotating center unit, and more particularly, to an automobile steering apparatus that can be conveniently used regardless of a steering angle of a steering wheel by providing a non-rotating center unit, to which various electric modules are mounted, at the center of the steering wheel.
Background
Generally, a steering apparatus of an automobile is provided to variably adjust a traveling direction of a vehicle body according to a steering direction of a driver. Such a steering device includes: a steering wheel for a driver to hold and operate; a steering shaft directly connected to the steering wheel; and a steering mechanism connected to the steering shaft to variably adjust an angle of a steered wheel.
In addition, as disclosed in korean laid-open patent No. 2000-0015545, an airbag module is installed at the center to improve the safety of a driver in an emergency, and at the same time, as disclosed in korean registered patent No. 10-0569951, on a spoke connecting the center to a rim located at an edge, the installation area is enlarged by using a member such as a pad to install various electrical devices such as a remote switch module to improve the convenience of operation.
However, since the general steering wheel as described above has a structure in which the airbag module and the remote control switch module are rotated together at the time of steering, the deployment angle of the airbag may deviate from the optimum range for securing the safety of the driver in an emergency, and the remote control switch module may hardly perform a normal operation in the case of rotation, such as in the case where the driver does not directly confirm the position thereof with the naked eye.
In particular, in the case of an unmanned vehicle, a display screen is installed at the center of a steering wheel to output visual information such as the state of the vehicle to the outside, and in this case, the picture or image information output from the display screen is inverted or angularly deviated in the left-right direction at the time of steering, thus inevitably causing many difficulties in recognition of the driver.
Therefore, there is a need to develop a new steering apparatus that is capable of separately providing an independent portion that is not affected by the steering of the steering wheel without rotation.
Disclosure of Invention
Technical problem to be solved
The present invention has been made in an effort to provide an automobile steering apparatus in which a non-rotating center unit, to which various electric modules are mounted, is provided at a hub of a steering wheel, so that the electric modules can be conveniently used regardless of a steering angle, thereby providing convenience to a user or being suitable for an unmanned vehicle.
Another technical problem to be solved by the present invention is to provide an automobile steering device that provides a wiring path of a wire harness that is provided bypassing a mounting portion of a steering gear assembly that connects a steering wheel and a steering shaft to reach an electric module of a non-rotating center unit from the outside, thereby being capable of improving operability of the electric module.
Means for solving the problems
In order to solve the above technical problem, preferably, the steering apparatus for a vehicle of the present invention comprises: a housing fixed to a vehicle body; a steering wheel rotatably mounted with respect to the housing; a steering gear assembly mounted to transmit rotation of the steering wheel to a steering shaft; and a non-rotation center unit fixed to the housing and wired with an external harness, wherein a wiring path of the harness is provided to reach the non-rotation center unit without interfering with rotation of the steering gear assembly inside the housing.
In an embodiment of the present invention, preferably, the steering gear assembly includes: a hollow main gear part connected to the steering wheel; a transition gear part geared with the main gear part; and a sub gear part gear-coupled with the transition gear part and coupled with the steering shaft, wherein the main gear part and the sub gear part are circumscribed with respect to the transition gear part in an axially spaced state.
In the embodiment of the present invention, it is preferable that a wiring path of the wire harness is provided to reach the non-rotating center unit via an axial gap between the main gear part and the sub gear part and an inside of the main gear part.
In an embodiment of the present invention, preferably, the housing includes: a boss portion that rotatably supports the main gear portion; and an opening portion for introducing the wire harness; wherein the boss portion forms a gap with the transition gear portion to set a wiring path of the wire harness.
In the embodiment of the present invention, preferably, a rear surface of the non-rotating center unit includes a hollow-shaped mounting portion protruding in an axial direction to be combined with the boss portion.
In an embodiment of the present invention, it is preferable that the main gear part includes an extension part extending in an axial direction to be coupled with a hub of the steering wheel.
In an embodiment of the present invention, it is preferable that the transition gear part includes scissor gears rotatably mounted at both ends of the transition gear part by torsion springs, the main gear part is gear-coupled to the transition gear part together with any one of the scissor gears, and the sub gear part is gear-coupled to the transition gear part together with the other scissor gear.
The embodiment of the present invention preferably further comprises column mounting brackets rotatably supporting one end of the transition gear part and the sub gear part, respectively.
In an embodiment of the present invention, it is preferable that both ends of the transition gear part are mounted to be rotatably supported with respect to the housing and the pillar mounting bracket, respectively.
Effects of the invention
The vehicle steering apparatus according to an embodiment of the present invention provides a non-rotating center unit in which various electric modules are mounted to a hub located at a central portion of a steering wheel, and the electric modules can be conveniently used regardless of a steering angle of the steering wheel, and is particularly suitable for an unmanned vehicle.
In addition, according to the steering apparatus for an automobile of the embodiment of the present invention, the wiring path of the wire harness arranged from the outside is provided, the wiring path of the wire harness is arranged to bypass the mounting portion of the steering gear assembly connecting the steering wheel and the steering shaft to be connected with various electric modules mounted on the non-rotating center unit, so that not only the operability raised for the various electric modules can be secured, but also the occurrence of deformation in which the wire harness is twisted with the steering can be fundamentally eliminated.
For example, in the case where the airbag module is mounted to the non-rotating center unit, the deployment angle of the airbag can be set to an optimum angle with respect to the upper body position of the driver regardless of the steering angle of the steering wheel, and therefore, an effect of reducing the degree of injury to the driver can be obtained at the time of a collision or a rear-end collision.
In addition, when various remote control switch modules or display screens are installed on the non-rotating center unit, the electric device can be operated more conveniently regardless of the steering angle of the steering wheel, and particularly, the picture or image information output from the display screen can be recognized normally without the occurrence of up-down inversion or left-right angle change, thereby providing convenience to the user.
In addition, according to the vehicle steering apparatus of the embodiment of the present invention, the transition gear part equipped with the scissors gear is applied to the steering gear assembly that transmits the steering force from the steering wheel to the steering shaft, thereby eliminating the backlash from the tooth joint of the gear at the time of steering, and fundamentally eliminating the noise due to the tooth contact that may occur at the tooth joint of the gear in addition to giving the proper transmission function of the steering angle, thereby ensuring the quietness performance.
In addition, according to the vehicle steering apparatus of the embodiment of the present invention, it is possible to adjust the steering force transmitted from the steering wheel to the steering shaft to a desired level by variably setting the gear ratio of each gear constituting the steering gear assembly.
Drawings
Fig. 1 is a perspective view illustrating a steering apparatus for an automobile according to an embodiment of the present invention.
Fig. 2 is a sectional view of the steering device shown in fig. 1.
Fig. 3 is an exploded perspective view showing a main configuration of the steering device shown in fig. 1.
Fig. 4 is a perspective view showing fig. 3 in the opposite direction.
Fig. 5 is a perspective view illustrating only the steering gear assembly shown in fig. 4.
Fig. 6 is a perspective view showing fig. 5 in the opposite direction.
Fig. 7 is an exploded perspective view showing a main composition of the steering gear assembly shown in fig. 5.
Fig. 8 is an exploded perspective view illustrating the transition gear part shown in fig. 7.
Detailed Description
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to fig. 1 to 4, a vehicle steering device according to an embodiment of the present invention includes: a steering wheel 10 for the driver to hold; a steering gear assembly 20 for transmitting a steering force of the steering wheel 10; a housing 30 in which the steering gear assembly 20 is installed; and a steering shaft 40 for transmitting a steering force supplied from the steering wheel 10 to a steering mechanism (not shown) of the front wheels.
The steering wheel 10 comprises, at the edge, an annular rim 11; a hollow hub 12 located at the center; a plurality of spokes 13 connecting between the rim 11 and the hub 12; and a non-rotating center unit 14 disposed at the center of the rim 11 and not rotating independently of the hub.
In this case, the rim 11, the hub 12, and the spokes 13 correspond to members that rotate integrally at the time of steering, respectively, and the non-rotating center unit 14 is a portion that does not rotate regardless of the steering, and corresponds to an element that mounts various electric modules (e.g., a remote switch module or an airbag module, etc.). To this end, a hollow mounting portion 14a protruding outward is integrally provided on the rear surface of the non-rotating center unit 14 for fixed connection with the housing 30.
The steering gear assembly 20 transmits the rotational force applied to the steering wheel 10 to the steering shaft 40 when steering, as shown in fig. 2 and 5 to 7, the steering gear assembly 20 includes: a main gear portion 21 connected to the hub 12 of the steering wheel 10; a transition gear portion 22 that is gear-coupled to the main gear portion 21; and a sub gear portion 23 that is tooth-coupled to the transition gear 22 and is shaft-coupled to the steering shaft 40.
Here, the main gear portion 21 and the sub gear portion 23 are respectively circumscribed with respect to both ends of the transition gear portion 22 in a state of being spaced apart from each other by an appropriate distance in the axial direction. That is, the transition gear portion 22 is provided at a position deviated outward from a steering axis connecting between the main gear portion 21 and the sub gear portion 23. In addition, the main gear portion 21 and the sub gear portion 23 are disposed coaxially with respect to the steering wheel 10.
In this case, the steering gear assembly 20 is configured to realize various reduction ratios by designing the main gear portion 21, the transition gear portion 22, and the sub gear portion 23. For example, the transition gear portion 22 may be provided at a portion to be tooth-coupled to each of the main gear portion 21 and the sub gear portion 23, and may be formed in a stepped shape having a different number of tooth profiles to adjust a gear ratio, so that a steering force transmitted from the steering wheel 10 to the steering shaft 40 can be variably adjusted. In addition, unlike this, a desired reduction ratio can be obtained only by adjusting the gear ratios of the main gear part 21 and the transition gear part 22.
The main gear portion 21 has a hollow shape and is attached to be rotatably supported inside the housing 30. In addition, a portion of the main gear part 21 protrudes to the outside of the housing 30 to be directly connected to the hub 12 of the steering wheel 10.
In the embodiment of the present invention, the main gear part 21 is provided with an extended part 21a, and the extended part 21a protrudes toward the outside of the housing 30 in the axial direction to be coupled with the hub 12 of the steering wheel 10. In addition, the extended portion 21a of the main gear portion 21 is inserted into the inner circumferential surface of the hub 12 of the steering wheel 10 for assembly. In this case, the extension portion 21a has a plurality of protrusions 21b protruding to the outside, the protrusions 21b being arranged as a radial structure for shaft-coupling with the hub 12 of the steering wheel 10 closely.
In particular, the extended portion 21a of the main gear part 21 is provided at a front end with an annular coupling plate 21c to stably support the hub 12 of the steering wheel 10. In addition, the connecting plate 21c is provided with a plurality of hollow assembling columns 21d protruding in the axial direction to be stably coupled with the hub 12. In addition, a plurality of groove portions 21e are provided at corresponding positions on the inner peripheral surface of the connecting plate 21c to be combined with the protrusion portions 21 b.
In addition, a predetermined clearance is ensured in the axial direction between the main gear portion 21 and the sub gear portion 23 to ensure that a wiring path (shown as a broken line in fig. 2) of a wire harness arranged to reach the non-rotating center unit 14 from the outside is independent of the rotation of the steering wheel 10. That is, the wiring path of the wire harness passes through the axial gap between the main gear portion 21 and the sub gear portion 23 and enters the inside of the housing 30, and then passes through the inside of the mounting portion 14a to the back surface of the non-rotating center unit 14. At this time, since the wiring path of the wire harness can be freely secured from the rotation of the hub 12 of the steering wheel 10, the occurrence of the deformation related to the steering such as the twist of the wire harness is fundamentally excluded.
In addition, the transition gear part 22 is provided at both ends with scissors gears 24 for absorbing backlash, and the pair of scissors gears 24 are respectively installed to be elastically supported in opposite directions with respect to the transition gear part 22. That is, as shown in fig. 8, the scissors gears 24 are mounted at both ends of the transition gear part 22 to be capable of performing a restoring movement in a rotational direction by torsion springs 25, respectively.
For this, fastening holes 22a and 24a for fixing both ends of the torsion spring 25 are formed at the transition gear part 22 and the scissors gear 24, respectively, and groove parts 22b for accommodating the torsion spring 25 are formed at both ends of the transition gear part 22. In addition, the transition gear part 22 is integrally provided with support shaft parts 22c having a shape protruding outward for mounting bearings at both ends of the transition gear part 22.
In this case, the main gear part 21 is tooth-coupled to the transition gear part 22 together with any one of a pair of scissor gears 24 located at both ends of the transition gear part 22, and the sub gear part 23 is tooth-coupled to the transition gear part 22 together with the other scissor gear 24.
As shown in fig. 2, 5 and 6, the sub gear portion 23 is connected to the serration portion 40a of the steering shaft 40 by spline coupling.
The housing 30 is mounted and secured to a portion of the vehicle interior adjacent the steering column, and the steering gear assembly 20 is mounted therein. Specifically, the inside of the housing 30 is provided with a hollow boss portion 31 protruding in the axial direction to rotatably support the main gear portion 21.
In the embodiment of the present invention, the boss portion 31 is mounted with a first bearing 51 on an outer peripheral surface. Thus, the boss portion 31 rotatably supports the inner peripheral surface of the main gear portion 21 via the first bearing 51. In addition, a second bearing 52 is separately installed at an outer side of the edge portion of the housing 30 to rotatably support a front end of the transition gear 22.
In addition, the boss portion 31 inserts the free end of the mounting portion 14a of the non-rotating center unit 14 into the interior, thereby being capable of supporting the non-rotating center unit 14 in a non-rotating state without being affected by steering.
In addition, the housing 30 has an opening portion 32 in the shape of an inlet port, and the opening portion 32 can communicate with the outside to allow a wiring path of the wire harness. That is, the opening portion 32 allows the wire harness to enter the inside of the housing 30 from the outside, the wire harness entering the inside of the housing 30 passes through the axial gap between the main gear portion 21 and the sub gear portion 23 and enters the inner space of the boss portion 31, and then the wire harness passes through the inner space of the mounting portion 14a and reaches the back surface of the non-rotating center unit 14. In summary, the wire harness is introduced into the interior through the opening portion 32 of the housing 30, then passes through the axial gap between the main gear portion 21 and the sub gear portion 23, and passes through the interior space of the boss portion 31 and the interior space of the mounting portion 14a in this order, being connected to the non-rotating center unit 14.
The housing 30 is provided at a rear end with a plate-like pillar mounting bracket 33 having a hole at a center portion thereof for fixing to a pillar portion on the vehicle body side. In this case, the column mounting bracket 33 is provided with a third bearing 53, the third bearing 53 rotatably supporting the rear end of the transition gear portion 22, and a fourth bearing 54, the fourth bearing 54 rotatably supporting the sub gear portion 23.
Therefore, in the present invention constructed as described above, the steering force applied to the steering wheel 10 at the time of steering is transmitted to the main gear portion 21 of the steering gear assembly 20 via the rim 11, the spokes 13 and the hub 12, and the steering force transmitted to the main gear portion 21 is transmitted to the sub gear portion 23 via the transition gear portion 22, and then supplied to the steering shaft 40 to be steered in a desired direction.
In this process, the non-rotating center unit 14 located at the center portion of the steering wheel 10 is supported in a state where rotation is not required, without being affected by steering, by the coupling between the mounting portion 14a and the boss portion 31 of the housing 30.
As a result, various electric modules such as a remote control switch module or a display screen mounted on the non-rotating center unit 14 can be maintained in a non-rotating state without being affected by steering, and thus can be more conveniently used, and thus a steering apparatus suitable for an unmanned vehicle can be provided.
In addition, the wire harnesses connected to the various electric modules mounted on the non-rotating center unit 14 may be arranged to enter the inner space through the opening portion 32 of the housing 30 and then to bypass the portion where the steering gear assembly 20 is mounted to the rear surface of the non-rotating center unit 14, so that the normal operation functions of the various electric modules can be ensured.
That is, the wiring path of the wire harness may be set to pass through the axial gap between the main gear part 21 and the sub gear part 23, enter the inner space of the housing 30 through the gap between the sub gear part 23 and the boss part 31, and then reach the rear surface of the non-rotating center unit 14 after passing through the inner space of the mounting part 14a, so that the non-rotating center unit 14 is not affected by the rotation of the steering wheel 10 and can maintain a non-rotating state.
In addition, according to the present invention, in transmitting the steering force from the steering wheel 10 to the steering shaft 40, it is possible to eliminate backlash occurring at the tooth-coupled portion of the gear and thus to transmit a correct steering angle by the scissors gear 24 provided in the transition gear portion 22 of the steering gear assembly 20, and at the same time, it is possible to fundamentally eliminate the problem of noise generation due to tooth contact that may occur at the tooth-coupled portion of the gear, and thus it is possible to secure the silencing performance in the vehicle interior.
Claims (5)
1. An automobile steering device, characterized by comprising:
a housing fixed to a vehicle body;
a steering wheel rotatably mounted with respect to the housing;
a steering gear assembly that transmits rotation of the steering wheel to a steering shaft; and
a non-rotating center unit fixed to the housing and wired with an external harness,
wherein a wiring path of the wire harness is provided to reach the non-rotation center unit without interfering with rotation of the steering gear assembly inside the housing,
the steering gear assembly includes: a hollow main gear part connected to the steering wheel; a transition gear part which is tooth-coupled with the main gear part; and a sub gear part geared with the transition gear part and coupled with the steering shaft,
wherein the main gear portion and the sub gear portion are configured to be circumscribed with respect to the transition gear portion in an axially spaced state and are disposed coaxially with respect to the steering wheel,
the housing includes: a boss portion that rotatably supports the main gear portion; and an opening portion for introducing the wire harness; wherein the boss portion forms a gap with the transition gear portion to set a wiring path of the wire harness,
a rear surface of the non-rotating center unit includes a hollow-shaped mounting portion protruding in an axial direction to be combined with the boss portion,
the main gear portion includes an extension portion extending in an axial direction to be combined with a hub of the steering wheel, the extension portion is provided at a front end with an annular connecting plate, the connecting plate is provided with a hollow assembling post protruding in the axial direction for combination with the hub, the extension portion has a protrusion portion protruding to an outside, and the connecting plate is provided with a groove portion for combination with the protrusion portion.
2. The steering device for a vehicle according to claim 1,
the wiring path of the wire harness is provided to reach the non-rotating center unit via an axial gap between the main gear portion and the sub gear portion and an inside of the main gear portion.
3. The steering device for a vehicle according to claim 1,
the transition gear part includes scissor gears rotatably mounted at both ends of the transition gear part by a torsion spring, the main gear part is gear-coupled to the transition gear part together with any one of the scissor gears, and the sub gear part is gear-coupled to the transition gear part together with the other scissor gear.
4. The steering device for a vehicle according to claim 1,
further included is a column mounting bracket coupled to the housing and rotatably supporting one end of the transition gear part and the sub gear part, respectively.
5. The steering device for a vehicle according to claim 4,
both ends of the transition gear part are installed to be rotatably supported with respect to the housing and the column mounting bracket, respectively.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2018-0088028 | 2018-07-27 | ||
| KR1020180088028A KR102105379B1 (en) | 2018-07-27 | 2018-07-27 | Steering apparatus with irrotational core portion for vehicles |
| PCT/KR2018/016275 WO2020022588A1 (en) | 2018-07-27 | 2018-12-19 | Vehicle steering apparatus having irrotational core part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112543726A CN112543726A (en) | 2021-03-23 |
| CN112543726B true CN112543726B (en) | 2023-03-14 |
Family
ID=69181735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880095969.8A Active CN112543726B (en) | 2018-07-27 | 2018-12-19 | Steering device for a motor vehicle with a non-rotating central unit |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR102105379B1 (en) |
| CN (1) | CN112543726B (en) |
| WO (1) | WO2020022588A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113120067B (en) * | 2021-05-14 | 2022-08-02 | 宁波均胜汽车安全系统有限公司 | Centralized control steering wheel |
| CN114590310A (en) * | 2022-03-31 | 2022-06-07 | 杭州杭叉驾驶室有限公司 | Steering machine mechanism with embedded fixed instrument |
| CN117937277B (en) * | 2024-01-19 | 2024-06-21 | 江苏国控电力设备有限公司 | Movable high-voltage 24KV electrical cabinet |
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2018
- 2018-07-27 KR KR1020180088028A patent/KR102105379B1/en active IP Right Grant
- 2018-12-19 CN CN201880095969.8A patent/CN112543726B/en active Active
- 2018-12-19 WO PCT/KR2018/016275 patent/WO2020022588A1/en active Application Filing
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| CN203020363U (en) * | 2012-12-11 | 2013-06-26 | 北汽福田汽车股份有限公司 | Steering wheel, steering system and vehicle |
| JP2015081670A (en) * | 2013-10-24 | 2015-04-27 | 株式会社ジェイテクト | Planetary gear device |
| CN114590310A (en) * | 2022-03-31 | 2022-06-07 | 杭州杭叉驾驶室有限公司 | Steering machine mechanism with embedded fixed instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102105379B1 (en) | 2020-05-13 |
| CN112543726A (en) | 2021-03-23 |
| WO2020022588A1 (en) | 2020-01-30 |
| KR20200012571A (en) | 2020-02-05 |
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