Steering wheel device in car

Abstract

The present invention relates to a steering wheel device in a car, the steering wheel device comprising: a rim part divided into first and second rims; a hub provided in the center of the rim part; and a rotation module that is disposed behind the hub and rotates the second rim. The rotation module places the second rim on the same plane as the first rim or rotates the second rim forward, a mechanism for locking the rotation by applying a force to the second rim is provided, and the second rim located on the driver-side of the steering wheel can be rotated forward to maximize the driver's seat space.

Description

steering wheel device of a car

[0001] The present invention relates to a steering wheel device for an automobile, and more particularly, to a steering wheel device for an automobile that secures a driver's space by partially overlapping a steering wheel provided on a driver's seat of an automobile.

[0002] Recently, autonomous vehicles that can move on their own without a driver are being developed.

[0003] The above autonomous vehicle uses advanced sensors and high-performance graphics processing units that can recognize surrounding objects to detect each device installed in the vehicle and the situation around the vehicle, and controls the operation of each device installed in the vehicle based on the detection results to drive.

[0004] The aforementioned advanced sensors measure the distance between objects, much like humans, detect danger, and help the car see all around without blind spots. Furthermore, the graphics processing unit uses multiple cameras to perceive the car's surroundings and analyzes the images to help the car drive safely.

[0005] For example, autonomous vehicles may be equipped with LiDAR equipment, sonar equipment, 3D cameras, radar equipment, etc.

[0006] As autonomous vehicles configured in this way do not require a driver to drive, the entire seat, including the driver's seat, rotates freely, and the angle of the backrest is adjusted to a horizontal state by tilting.

[0007] Passengers can adjust the angle of the backrest to various angles and even rotate the seat to face the passenger in the back seat and hold a conference.

[0008] Meanwhile, the driver's seat of the car is equipped with a steering wheel that operates the steering device connected to the wheels according to the driver's operation.

[0009] A steering wheel for a vehicle according to the prior art includes a ring-shaped rim, a hub provided at the center of the rim and having a driver's airbag module disposed at the top, and a plurality of spokes connecting the hub and the rim, and a steering shaft is connected to the front end of the hub.

[0010] For example, the following patent documents 1 and 2 disclose a steering wheel configuration according to the prior art.

[0011] However, since the steering wheel for a vehicle according to the prior art has a rim formed in a ring shape, it always occupies a certain amount of space in the driver's seat.

[0012] Due to this, there was a problem in that the steering wheel for a vehicle according to the prior art interfered with the rim when the driver rotated the backrest of the seat backward to lean against the backrest or take a lying position, and crossed his legs or rotated the seat when driving in the autonomous driving mode of an autonomous vehicle.

[0013] In addition, the steering wheel for a vehicle according to the prior art had a problem of increasing the amount of injury depending on the driver's posture or direction in the event of a car collision.

[0014] Meanwhile, to solve the above-mentioned problem, a technology is being developed that can fold the entire or part of the rim by rotating it.

[0015] However, conventional foldable steering wheels have a problem in that the rotation angle of the rim changes or the rim or drive unit is damaged or broken when an external force is applied to the rim, as the rim cannot be completely fixed in a rotating motion.

[0016] (Patent Document 1) Republic of Korea Patent Publication No. 10-2020-006954 (published on January 21, 2020)

[0017] (Patent Document 2) Republic of Korea Patent Registration No. 10-1420689 (announced on July 17, 2014)

[0018] The purpose of the present invention is to solve the above-mentioned problems, and to provide a steering wheel device for an automobile that can partially fold the rim to maximize the driver's seat space.

[0019] Another object of the present invention is to provide a steering wheel device for an automobile that can be applied to an autonomous vehicle, etc., to secure a driver's seat space and avoid interference with the driver regardless of the driver's posture or inclination angle.

[0020] Another object of the present invention is to provide a steering wheel device for an automobile that can prevent breakage or damage due to external force by locking a rotating rim.

[0021] In order to achieve the above-described purpose, a steering wheel device for a vehicle according to the present invention includes a rim portion divided into first and second rims, a hub provided at the center of the rim portion, and a rotation module for rotating the second rim disposed at the rear side of the hub, wherein the rotation module is characterized in that it arranges the second rim on the same plane as the first rim or rotates it forward, and locks the rotational motion by a force applied to the second rim.

[0022] As described above, the steering wheel device of an automobile according to the present invention has the effect of maximizing the driver's seat space by rotating the second rim disposed on the driver's side of the steering wheel forward.

[0023] Accordingly, according to the present invention, the effect of securing sufficient space for the driver to cross or move his / her legs while leaning against the backrest of the seat or lying down is obtained.

[0024] And according to the present invention, when applied to an autonomous vehicle, the effect of effectively avoiding interference between the driver and the steering wheel when adjusting the rotational motion and inclination angle of the seat is obtained.

[0025] In particular, according to the present invention, by applying a rotation module that uses a cycloidal reducer configuration to increase the locking force that operates in a state of rotational stop at the output shaft section, an effect is obtained in which the second rim can be firmly locked so that it does not rotate even when an external force such as vibration, impact, or driver's operating force is applied to the second rim.

[0026] In addition, the present invention has the effect of preventing damage or breakage of the driving motor due to external force by preventing external force applied to the second rim from being transmitted to the driving motor.

[0027] Figure 1 is a rear view of a steering wheel device of a vehicle according to a preferred embodiment of the present invention;

[0028] Fig. 2 is a side view of the steering wheel device shown in Fig. 1;

[0029] Fig. 3 is a perspective view of the steering wheel device with the cover shown in Fig. 1 removed;

[0030] Figure 4 is an enlarged perspective view of the rotation module shown in Figure 3;

[0031] Figure 5 is an exploded perspective view of the rotation module shown in Figure 4.

[0032] Fig. 6 is a cross-sectional view along line AA' shown in Fig. 4;

[0033] Figures 7 and 8 are operation state diagrams showing the rotational operation state of the second rim due to the rotational operation of the rotation module, respectively.

[0034] Hereinafter, a steering wheel device for an automobile according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0035] Hereinafter, the direction toward the front of the vehicle, centered on the driver's seat, is referred to as "forward (F)", and the direction toward the rear of the vehicle is referred to as "rear (B)". In addition, terms indicating directions such as "left (L)", "right (R)", "upward (U)", and "downward (D)" are defined as indicating the respective directions based on the forward and rear.

[0036] FIG. 1 is a rear view of a steering wheel device of a vehicle according to a preferred embodiment of the present invention, FIG. 2 is a side view of the steering wheel device shown in FIG. 1, and FIG. 3 is a perspective view of the steering wheel device shown in FIG. 1 with the cover removed.

[0037] A steering wheel device (10) of a vehicle according to a preferred embodiment of the present invention includes, as shown in FIGS. 1 to 3, a rim portion (20) divided into first and second rims (21, 22), a hub (23) provided at the center of the rim portion (20) and having a driver's seat airbag module (not shown in the drawing) installed therein, a pair of spokes (24) connecting the first rim (21) and the second rim (22) to the hub (23), and a rotation module (30) that rotates the second rim (22) disposed on the lower side of the hub (23).

[0038] In addition, the steering wheel device (10) of a vehicle according to a preferred embodiment of the present invention may further include a detection unit (50) installed on the driver's seat of the vehicle and detecting the driver's posture and direction, and a control unit (60) that controls the operation of the rotation module (30) based on the detection result of the detection unit (50) and whether the vehicle is started, whether the autonomous driving mode is set, whether the vehicle is parked or stopped.

[0039] That is, the present invention is applicable not only to general automobiles but also to autonomous vehicles, and secures maximum driver's seat space by rotating the second rim (22) positioned close to the driver in the steering wheel device (10) forward depending on whether the automobile is started, whether the autonomous driving mode is set, whether the automobile is parked or stopped, the driver's posture and rotation direction, etc.

[0040] Of course, the present invention may be configured to move the second rim (22) by manual operation of the driver, or may be configured to drive the rotation module (30) by driving the drive motor using a control signal of the control unit (60).

[0041] To explain in detail, the rim (20) may include a pair of first rims (21) formed in a roughly arc shape and fixed to the front side of the hub (23), and a pair of second rims (22) formed in a roughly arc shape and positioned on the rear side of the hub (23), i.e., the driver side, and rotated by a rotation module (30).

[0042] Of course, the present invention is not necessarily limited to this, and may be modified to form the first rim (21) and the second rim (22) into an approximately arc shape or a semi-ring shape each having an angle of 180 ±α°.

[0043] The hub (23) is provided in a roughly plate shape, and a pair of spokes (24) may be provided on both sides of the hub (23) to be connected to a first rim (21) and a second rim (22) formed in an arc shape, respectively.

[0044] A rotation module (30) is mounted on each spoke (24), and a cover (25) that shields the outer surface of the hub (23), the spoke (24), and the rotation module (30) can be combined on the upper portion of the hub (23) and a pair of spokes (24).

[0045] The cover (25) may be formed in a concave shape compared to the two sides corresponding to a pair of spokes (24) provided on both sides of the hub (23) so that a mounting space (26) is provided in the central part corresponding to the hub (23).

[0046] The above driving airbag module and horn switch are mounted in the mounting space (26).

[0047] To this end, a housing (not shown in the drawing) in which the driver's seat airbag module and horn switch are installed is coupled to the central portion of the cover (25), and an airbag cover (not shown in the drawing) can be coupled to the upper surface of the housing.

[0048] The above airbag cover may be equipped with an emblem, light emblem, or other symbol, letter, or shape symbolizing the vehicle or manufacturer.

[0049] The rotating module (30) is mounted on one or both ends of the spoke (24), and has the function of rotating the second rim (22) forward to maximize the driver's seat space or returning the second rim (22) to its original position.

[0050] The configuration of this rotation module (30) will be described in detail below with reference to FIGS. 3 to 8.

[0051] The detection unit (50) includes a plurality of detection sensors that detect the rotation direction of the driver's seat, the inclination angle of the backrest, etc., and the detection signals output from the detection sensors are transmitted to the control unit (60).

[0052] The control unit (60) is provided as an electronic control unit that controls the operation of each electronic component provided in the vehicle or a separate controller that is provided to be able to communicate with the electronic control unit, and can control the operation of the rotation module (30) based on at least one of whether the vehicle is started, whether the autonomous driving mode is set, whether the vehicle is parked or stopped, the rotation direction of the seat, and the inclination angle of the backrest, which are confirmed through the detection signal of the detection unit (50) and communication with various sensors provided in the vehicle.

[0053] For example, when the autonomous driving mode is set after the vehicle is started or when the vehicle is stopped, the control unit (60) can control the rotation module (30) to rotate the second rim (22) forward to maximize the driver's seat space.

[0054] Of course, the control unit (60) can also control the rotation angle of the rotation module (30) in detail according to the rotation direction of the driver's seat or the inclination angle of the backrest.

[0055] In addition, the control unit (60) can control the second rim (22) to rotate forward so as to maximize the space for the driver to get on or off the vehicle when the driver gets on or off the vehicle after driving.

[0056]

[0057] Next, the configuration of the rotation module (30) will be described in detail with reference to FIGS. 3 to 6.

[0058] Fig. 4 is an enlarged perspective view of the rotation module illustrated in Fig. 3, Fig. 5 is an exploded perspective view of the rotation module illustrated in Fig. 4, and Fig. 6 is a cross-sectional view taken along line AA' illustrated in Fig. 4. Fig. 4 illustrates the rotation module illustrated in Fig. 3 with its cover removed.

[0059] The rotation module (30) has the function of rotating the second rim (22) downward or forward to maximize the driver's seat space, or rotating it upward or backward to return it to its original position.

[0060] Since these rotation modules (30) are provided as a pair with mutually symmetrical configurations at both ends of the second rim (22), in this embodiment, the configuration of the rotation module (30) connected to the left end of the second rim (22) as seen in FIG. 3 is described in detail.

[0061] Of course, the present invention is not necessarily limited to this, and it should be noted that instead of providing a pair of rotation modules (30) at each end of the second rim (22), the rotation module (30) may be provided only at one end of the second rim (22) to rotate the second rim (22).

[0062] In this embodiment, the rotation module (30) can be configured based on a cycloid reducer configuration.

[0063] In general, the cycloidal reducer mainly provides a reduction function, but in this embodiment, the rotation module (30) is configured to increase the locking force that performs the locking operation when the rotation is stopped at the output shaft section (31) by applying the configuration of the cycloidal reducer.

[0064] To explain in detail, the rotation module (30) may include an output shaft portion (31) connected to one end of the second rim (22), the left end as seen in FIG. 4, a driving motor (32) that generates a driving force for rotating the second rim (22), an input shaft portion (33) that receives the driving force of the driving motor (32), and a locking unit (40) that reduces the rotational force transmitted from the input shaft portion (33) and transmits it to the output shaft portion (31) and blocks the force transmitted from the output shaft portion (31) from being transmitted to the input shaft portion (33).

[0065] The output shaft portion (31) can be formed integrally by including an output shaft (311) that is coupled to the left end of the second rim (22) to transmit rotational force and a plate portion (312) that is formed in a roughly circular shape and is connected to the right end of the output shaft (311).

[0066] The left end of the output shaft (311) is coupled to a coupling groove formed at the left end of the second rim (22), and the right end of the output shaft (311) can be connected to the center of the plate portion (312).

[0067] A bearing may be installed on the output shaft (311) to reduce friction with the second cover (46) of the locking kit (40).

[0068] The plate portion (312) has a plurality of through holes (313) formed radially around the output shaft (311), and can be connected to the connecting member (41) of the locking unit (40) described below by a plurality of fastening bolts fastened to the plurality of through holes (313).

[0069] The driving motor (32) can be provided as a motor capable of forward and reverse rotation according to a control signal of a control unit (60) provided in the automobile.

[0070] On the right side of the output shaft and input shaft portion (33) of the drive motor (32), a worm (321) and a worm wheel (331) can be installed in contact with each other so that the driving force generated from the drive motor (32) can be transmitted to the locking unit (40).

[0071] Of course, the present invention can be modified to apply various types of power transmission units capable of transmitting power and changing the direction of power transmission, such as a pair of bevel gears, screw gears, or helical gears, instead of a worm and worm wheel.

[0072] In addition, the present invention can be modified to change the installation direction of the drive motor and to apply a rack and pinion or a pair of spur gears to the power transmission unit.

[0073] However, in this embodiment, in order to block external forces such as vibration or impact acting on the second rim (22) from being transmitted to the driving motor (32), a worm (321) and a worm wheel (331) that transmit power in only one direction are applied.

[0074] The input shaft section (33) may include an installation member (332) on which a worm wheel (331) is installed on the outer periphery, a transmission member (333) that is arranged at the outer end of the installation member (332), i.e., the left end, and transmits the rotational force of the driving motor (32) to the locking unit (40), and an input shaft (334) that connects the installation member (332) and the transmission member (333) to transmit the rotational force of the worm wheel (331) and the installation member (332) to the transmission member (333).

[0075] A key may be formed protrudingly on the outer surface of the input shaft (334) to be coupled to a key groove formed on the inner surface of the installation member (332), and a coupling protrusion may be formed on the left end of the input shaft (334) to be coupled to an installation groove formed on the rear end of the transmission member (333).

[0076] The locking unit (40) may include a connecting member (41) connected to the output shaft portion (31), and first and second gears (42, 43) each connected to the connecting member (41).

[0077] And the locking unit (40) may include a space formed inside where a connecting member (41) and first and second gears (42, 43) are installed, a locking block (44) having a plurality of teeth formed on the inner surface that engage with teeth formed on the outer surface of the first and second gears (42, 43), and first and second covers (45, 46) that shield both sides of the locking block (44).

[0078] The connecting member (41) can rotate at a reduced speed compared to the rotational speed input to the input shaft portion (33) by the rotational motion of the first and second gears (42, 43).

[0079] That is, the first and second gears (42, 43) are each provided as circular gears having the same outer diameter, and a plurality of teeth can be formed protruding on the outer peripheral surfaces of the first and second gears (42, 43).

[0080] These first and second gears (42, 43) are each arranged eccentrically on the input shaft portion (33) and can be connected to the connecting member (41) by a plurality of dual cycloid pins (hereinafter abbreviated as 'pins') (47).

[0081] A plurality of pins (47) are installed through the connecting member (41) provided in the locking unit (40) and the first and second gears (42, 43) to transmit the rotational force of the input shaft portion (33) to the connecting member (41) through the first and second gears (42, 43).

[0082] These plurality of pins (47) may be firmly joined by a press-fit method or the like on an installation hole (411) formed on a connecting member (41), or may be manufactured integrally with the connecting member (41) and placed on the first and second through holes (421, 431) formed on the first and second gears (42, 43), respectively.

[0083] Here, the first and second holes (421, 431) can be formed with an inner diameter larger than the outer diameter of the pin (47).

[0084] Therefore, the first and second gears (42, 43) rotate while sequentially engaging the teeth on the inner surface of the locking block (44) by the rotational motion of the input shaft portion (33) with the teeth formed on the outer surface of each, and each pin (47) can rotate while being coupled inside the first and second holes (421, 431), respectively.

[0085] That is, the locking block (44) is formed in a cylindrical shape with a cross-section that is approximately square, and can be fixedly installed on the spoke (24) using a bracket or the like.

[0086] The first and second gears (42, 43) can be installed eccentrically in a direction symmetrical to each other on the transmission member (333).

[0087] To this end, first and second installation holes (423, 433) may be formed in the central portions of the first and second gears (42, 43), in which first and second cams (422, 432) that are eccentrically coupled to each other on the transmission member (333) are installed.

[0088] The first and second cams (422, 432) may each have a coupling hole formed that is eccentrically coupled to the transmission member (333).

[0089] First and second bearings (424, 434) may be installed on the outside of the first and second cams (422, 432) so that they can rotate smoothly inside the first and second installation holes (423, 433), respectively.

[0090] That is, a joining hole is formed in the center of the first and second bearings (424, 434), in which the first and second cams (422, 432) are joined, respectively, and the first and second installation holes (423, 433) can be formed to have an inner diameter larger than the outer diameter of the first and second bearings (424, 434), respectively.

[0091] Therefore, the first and second cams (422, 432) rotate inside the first and second installation holes (423, 433) respectively by the rotational motion of the input shaft portion (33), and the first and second gears (42, 43) can rotate by the rotational force transmitted from the first and second cams (422, 432) that rotate while in contact with the inner surfaces of the first and second installation holes (423, 433).

[0092] In addition, a bearing or a circular metal plate may be installed between the first cam (422) and the second cam (432), between the first cam (422) and the first cover (45), and between the second cam (432) and the connecting member (41), etc., to reduce the frictional force of the contact surface between the respective members, thereby enabling smooth rotation of the respective members.

[0093] In the rotation module (30) configured in this manner, the eccentric force generated from the first cam (422) and the second cam (432) pushes the first gear (42) and the second gear (43) in opposite directions through the first installation hole (423) and the second installation hole (433), respectively. Thus, the plurality of teeth formed on the outer surface of the first and second gears (42, 43) are locked by engaging with the plurality of teeth formed on the inner surface of the locking block (44).

[0094] Accordingly, the present invention prevents the external force applied to the second rim from being transmitted to the driving motor by applying a rotation module that applies the configuration of a cycloidal reducer, thereby preventing the driving motor from being damaged or broken due to the external force.

[0095]

[0096] Next, the configuration and operation method of the rotation module (30) will be described in detail with reference to FIGS. 7 and 8.

[0097] Figures 7 and 8 are operation state diagrams showing the rotational operation state of the second rim due to the rotational operation of the rotation module, respectively.

[0098] Figures 7 and 8 illustrate a state in which the second rim is rotated backward or forward by a driving motor provided in the rotation module.

[0099] That is, FIG. 7 shows a state in which the first rim (21) and the second rim (22) are rotated backward so as to form the same plane, and FIG. 8 shows a state in which the second rim (22) is rotated forward.

[0100] The rotation module (30) rotates the second rim (22) backward or forward by driving the drive motor (32) according to the control signal of the control unit (60).

[0101] First, the second rim (22) of the steering wheel device (10) is arranged on the same plane as the first rim (21) in a state of forming an approximately circular shape when the driver directly operates the steering wheel device (10) to drive.

[0102] That is, as illustrated in Fig. 7, the worm wheel (331) of the input / output section (33) rotates counterclockwise along one side, for example, the direction of arrow B, by the rotation of the worm (321) installed on the output shaft of the drive motor (32).

[0103] Then, the first and second cams (422, 432) coupled with the transmission member (333) of the input / output unit (33) rotate counterclockwise, causing the first and second gears (42, 43) to rotate clockwise. Therefore, the connecting member (41) coupled to the first and second gears (42, 43) with a pin and the output shaft (311) rotate clockwise.

[0104] Accordingly, the second rim (22) is placed on the same plane as the first rim (21) and maintains a state in which it is placed to form an approximately circular shape.

[0105] Meanwhile, when the autonomous driving mode is set or the vehicle is stopped after the vehicle is started, the control unit (60) controls the rotation module (30) to rotate the second rim (22) forward to maximize the driver's seat space.

[0106] That is, the control unit (60) generates a control signal to rotate the driving motor (32) in the opposite direction of FIG. 7, i.e., counterclockwise, as shown in FIG. 8.

[0107] Therefore, the worm wheel (331) of the input / output unit (33) rotates clockwise along the direction of arrow C by the opposite rotation of the worm (321) installed on the output shaft of the drive motor (32). Then, the first and second cams (422, 432) coupled with the transmission member (333) rotate clockwise, and thereby the first and second gears (42, 43) rotate counterclockwise. Therefore, the connecting member (41) coupled to the first and second gears (42, 43) by a plurality of pins (47) and the output shaft (311) rotate counterclockwise.

[0108] Accordingly, the second rim (22) can rotate forward to maximize the driver's seat space.

[0109] At this time, the second rim (22) can be rotated forward by a preset rotation angle, for example, 60° to 100°, to form an angle of approximately 80° to 120° with the first rim (21).

[0110] Of course, the present invention is not necessarily limited to this, and the rotation angle can be set in various ways according to various conditions such as the specifications of the steering wheel and the specifications of the surrounding structures.

[0111] Through the process described above, the present invention can maximize the driver's seat space by rotating the second rim placed on the driver's side of the steering wheel forward.

[0112] Accordingly, the present invention can secure sufficient space for the driver to cross or move his / her legs while leaning against the backrest of the seat or lying down.

[0113] And when the present invention is applied to an autonomous vehicle, it can effectively avoid interference between the driver and the steering wheel when adjusting the rotational motion and inclination angle of the seat.

[0114] In particular, the present invention applies a rotation module that utilizes a cycloidal reducer configuration to increase the locking force that operates in a state of rotational stoppage at the output shaft section, thereby firmly locking the second rim so that it does not rotate even when external force such as vibration, impact, or driver's operating force is applied to the second rim.

[0115] In addition, the present invention can prevent damage or breakage of the driving motor due to external force by preventing external force applied to the second rim from being transmitted to the driving motor.

[0116] Although the invention made by the present inventor has been specifically described according to the above embodiments, the present invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the spirit of the invention.

[0117] The present invention is applied to a technology for a steering wheel device of an automobile that secures a driver's seat space by rotating a second rim placed on the driver's side of the steering wheel forward and firmly locks the second rim even when an external force is applied.

Claims

1. Rim portion formed by dividing into first and second rims, The hub provided in the center of the above rim and It includes a rotation module that rotates the second rim disposed on the rear side of the hub, A steering wheel device for an automobile, characterized in that the rotation module places the second rim on the same plane as the first rim or rotates it forward, and locks the rotational motion by force applied to the second rim.

2. In paragraph 1, A sensor installed on the driver's seat of a car and detecting the driver's inclination angle and rotation direction A steering wheel device for a vehicle, characterized in that it further includes a control unit that controls the operation of the rotation module based on at least one of the detection results of the detection unit and whether the vehicle is started, whether the autonomous driving mode is set, whether the vehicle is parked or stopped, the driver's posture, and the rotation direction.

3. In the first or second paragraph, the rotation module The output shaft portion connected to the second rim, A driving motor that generates a driving force to rotate the second rim; An input shaft section that receives the driving force of the above driving motor and A steering wheel device for an automobile, characterized in that it includes a locking unit that reduces the rotational force transmitted from the input shaft section and transmits it to the output shaft section and blocks the force transmitted from the output shaft section from being transmitted to the input shaft section.

4. In paragraph 3, A steering wheel device for an automobile, characterized in that a worm and a worm wheel are installed in contact with each other at one end of the output shaft and input shaft of the driving motor, respectively, to transmit the driving force generated from the driving motor to the locking unit side and to block the force acting on the locking unit side from being transmitted to the driving motor.

5. In paragraph 3, The above locking unit is a connecting member connected to the output shaft section, First and second gears each connected to the connecting member by a plurality of pins; A locking block having a space formed inside where the connecting member and the first and second gears are installed, and a plurality of teeth formed on the inner surface to mesh with the teeth formed on the outer surface of the first and second gears; and A steering wheel device for an automobile, characterized in that it includes first and second covers that shield both sides of the locking block.

6. In paragraph 5, The above plurality of pins are coupled to the installation holes formed in the connecting member or are manufactured integrally with the connecting member, and are arranged on the first and second through holes formed in the first and second gears, respectively. A steering wheel device for an automobile, characterized in that the first and second holes are each formed with an inner diameter larger than the outer diameter of the pin.

7. In paragraph 5, The first and second gears each have a plurality of teeth formed on the outer surface thereof that sequentially engage with the teeth on the inner surface of the locking block by the rotational motion of the input shaft portion, thereby rotating. Each pin rotates while being coupled within each of the first and second holes, A steering wheel device for an automobile, characterized in that the first and second gears are installed eccentrically in a direction symmetrical to each other on a transmission member provided in the input shaft portion.

8. In paragraph 7, At the center of the first and second gears, first and second installation holes are formed, in which first and second cams are installed, which are eccentrically coupled to each other on the transmission member, respectively. First and second bearings are installed on the outside of the first and second cams, respectively. A steering wheel device for an automobile, characterized in that the first and second installation holes are formed with an inner diameter larger than the outer diameter of the first and second bearings, respectively.

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