Vehicle steering apparatus

Abstract

To provide a steering device for a vehicle capable of widening a foot space in front of a driver's seat and simplifying a structure around a steering wheel.SOLUTION: The vehicle steering device 1, 1a, 1b, 1c, 1d, 1e includes the pair of grips 10, the table 50 housed in the column cover 6, the sensor 31 provided in the table 50, the first driving section 21 that pulls out the table 50 from the column cover 6 and houses the table 50 in the column cover 6, the control section 30 that controls the first driving section 21, 30a, 30b, 30c, and the pair of grips 10 is configured to be rotatable with respect to the spoke 2. When the sensor 31 detects an object placed on the table 50, the first driving section 21 is not driven.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a vehicle steering device that is installed on a steering wheel of a vehicle. [Background technology]

[0002] Patent Document 1 discloses a vehicle steering device that includes a lateral movement mechanism that moves the steering wheel between an operating position set in front of the driver's seat and a retracted position set further forward of the passenger seat than the operating position, and a movement control unit that controls the operation of the lateral movement mechanism. This vehicle steering device is capable of switching between manual steering and automatic steering, and when switching from manual steering to automatic steering, the movement control unit moves the steering wheel from the operating position to the retracted position, thereby increasing the foot space in front of the driver's seat. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2020-142539 Summary of the Invention [Problem to be solved by the invention]

[0004] However, although the vehicle steering device of Patent Document 1 can expand the foot space in front of the driver's seat, it is necessary to install a lateral movement mechanism to move the steering wheel from the operating position to the retracted position, which makes the structure around the steering wheel complicated.

[0005] Therefore, an object of the present disclosure is to provide a vehicle steering device that can increase the legroom in front of the driver's seat and simplify the structure around the steering wheel. [Means for solving the problem]

[0006] A vehicle steering device according to one aspect of the present disclosure comprises spokes of a steering wheel, a pair of arc-shaped or straight grips arranged on the left and right sides of the spokes, a table stored in a column cover covering the underside of the steering column, a sensor provided on the table, a first drive unit that drives the table to move from the steering column toward the rear of the vehicle and pulls it out of the column cover, and drives the table to move toward the front of the vehicle and store it in the column cover, and a control unit that controls the first drive unit, wherein the pair of grips are configured to be rotatable relative to the spokes, and the control unit controls the drive of the first drive unit to move the table from the steering column toward the rear of the vehicle when the vehicle is parked or stopped, and controls the drive of the first drive unit to move the table toward the front of the vehicle and store it in the column cover when the vehicle is being driven or when a person gets in or out of the vehicle, and does not drive the first drive unit when the sensor detects an object placed on the table. [Effects of the Invention]

[0007] According to the vehicle steering device of the present disclosure, it is possible to increase the legroom in front of the driver's seat and simplify the structure around the steering wheel. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a perspective view showing a vehicle steering device in which a pair of grips are automatically rotatable. [Figure 2] FIG. 2 is a block diagram showing a vehicle steering device in which a pair of grips can be automatically rotated. [Figure 3A] FIG. 3A shows the table when it is stored in the column cover and when it is pulled out. [Figure 3B] FIG. 3B is a perspective view showing a state of a table in a vehicle steering device in which a pair of grips are automatically rotatable. [Figure 4A] FIG. 4A is a flowchart showing a first operation example of the vehicle steering device. [Figure 4B] FIG. 4B is a flowchart showing a second operation example of the vehicle steering device. [Figure 4C] FIG. 4C is a flowchart showing a third operation example of the vehicle steering device. [Figure 4D] FIG. 4D is a flowchart showing a vehicle steering device in which a pair of grips can be automatically rotated. [Figure 5] FIG. 5 is a block diagram showing a vehicle steering device in which a pair of grips can be manually rotated. [Figure 6] FIG. 6 is a flowchart showing a vehicle steering device in which a pair of grips are manually rotatable. [Figure 7] FIG. 7 is a perspective view showing a vehicle steering device in which the steering wheel can be turned automatically. [Figure 8] FIG. 8 is a block diagram showing a vehicle steering device in which the steering wheel can be automatically rotated. [Figure 9] FIG. 9 is a flowchart showing a vehicle steering device in which the steering wheel can be automatically rotated. [Figure 10] FIG. 10 is a block diagram showing a vehicle steering device in which the steering wheel can be manually turned. [Figure 11] FIG. 11 is a flowchart showing a vehicle steering device in which the steering wheel is manually rotatable. [Figure 12] FIG. 12 is a block diagram showing another modified example of a vehicle steering device. [Figure 13] FIG. 13 is another block diagram showing a vehicle steering device according to another modified example. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, the embodiments will be specifically described with reference to the drawings.

[0010] The embodiments described below are all comprehensive or specific examples. The numerical values, shapes, materials, components, arrangement positions and connection forms of the components shown in the following embodiments are merely examples and are not intended to limit the present disclosure. Furthermore, among the components in the following embodiments, components that are not described in the independent claims are described as optional components.

[0011] In addition, each drawing is a schematic diagram and is not necessarily an exact illustration. In addition, the same components are denoted by the same reference numerals in each drawing.

[0012] Furthermore, in the following embodiments, expressions such as bar-shaped and horizontal direction are used. For example, bar-shaped and horizontal direction not only means a perfect bar-shaped and horizontal direction, but also means a substantially bar-shaped and horizontal direction, i.e., including an error of a few percent. Furthermore, bar-shaped and horizontal direction means a bar-shaped and horizontal direction within the scope in which the effects of the present disclosure can be achieved. The same applies to other expressions using "shape" and "direction."

[0013] (Embodiment) <Automatic configuration and functions> First, a vehicle steering system 1 according to the present embodiment will be described with reference to FIGS. 1 to 3B.

[0014] FIG. 1 is a perspective view showing a vehicle steering device 1 in which a pair of grips 10 can rotate automatically. FIG. 1(a) shows a case where the steering position during driving is in a neutral position. FIG. 1(b) shows a case where the pair of grips 10 are reclined and in a horizontal position. FIG. 1(c) shows a case where the grip 10 on the door 9 side of a vehicle 3 adjacent to the vehicle steering device 1 is in a vertical position, and the other grip 10 is in a horizontal position. FIG. 1(d) shows a case where the pair of grips 10 are reclined and in a horizontal position, and the table 50 is pulled out. FIG. 2 is a block diagram showing a vehicle steering device 1 in which a pair of grips 10 can rotate automatically. FIG. 3A shows a case where the table 50 is stored in a column cover 6 and a case where it is pulled out. In FIG. 3A, the state where the table 50 is pulled out from the column cover 6 is shown by a two-dot chain line. FIG. 3B is a perspective view showing a state of the table 50 in a vehicle steering device 1 in which a pair of grips 10 can rotate automatically. 3B(a) shows a case where the pair of grips 10 have been reclined to a horizontal position and the table 50 has been stored in the storage space S in the column cover 6 that covers the lower part of the steering column 4. FIG. 3B(b) shows a case where the pair of grips 10 have been reclined to a horizontal position and the table 50 has been pulled out of the storage space S in the column cover 6.

[0015] 1 and the like illustrate a vehicle steering device 1 provided in a vehicle 3 in which the driver's seat is on the left side in the traveling direction. Note that the vehicle steering device 1 of the present disclosure may also be mounted in a vehicle 3 in which the driver's seat is on the right side in the traveling direction.

[0016] The vehicle steering device 1 is a device that can apply a steering angle to the steering wheels of the vehicle 3, and is also a device that can change the position of the grip 10 on the steering wheel located in front of the driver's seat of the vehicle 3.

[0017] Specifically, as shown in Figures 1 and 2, the vehicle steering device 1 includes a table 50, a control unit 30, a first drive unit 21, a sensor 31, a warning unit 70, a switch 25, a contact sensor 32, a spoke 2, a pair of grips 10, and a pair of second drive units 22.

[0018] As shown in Figure 1(d), Figure 2, Figure 3A, and Figure 3B, the table 50 is disposed below the steering wheel and is movable in the longitudinal direction of the vehicle 3. The table 50 is stored in a storage space S in the column cover 6 that covers the lower part of the steering column 4. Furthermore, the table 50 can be pulled out of the storage space S in the column cover 6 to move closer to the driver's seat.

[0019] The table 50 further includes an input means 51. The input means 51 is a touchpad, a touch panel, or a projection keyboard. In the case of a touchpad or a touch panel, it may be built into the table 50. In addition, a projection keyboard may be realized by a projection device disposed on the spokes 2 or the like projecting a keyboard image onto the surface of the table 50, and a detection unit disposed on the spokes 2 or the like detecting the position of the driver's fingers.

[0020] 4D, which will be described later, the control unit 30 controls the first drive unit 21 to move the table 50 from the steering column 4 toward the rear of the vehicle 3 when the vehicle 3 is parked or stopped. When the driver is driving the vehicle 3 or when the driver gets in or out of the vehicle 3, the control unit 30 controls the first drive unit 21 to move the table 50 toward the front of the vehicle 3 and store it in the storage space S in the column cover 6.

[0021] Furthermore, when the driver gets on or off the vehicle 3, if the sensor 31 detects an object placed on the table 50, the control unit 30 does not drive the first driving unit 21.

[0022] The first drive unit 21 is composed of a drive mechanism such as an electric motor that drives the table 50 to move in the front-to-rear direction of the vehicle 3. Specifically, when the first drive unit 21 is controlled by the control unit 30 to drive the table 50 to move from the steering column 4 toward the rear of the vehicle 3, the table 50 moves toward the rear of the vehicle 3 so that the table 50 protrudes from the column cover 6 and is positioned immediately in front of the driver's seat. Furthermore, when the first drive unit 21 is controlled by the control unit 30, the first drive unit 21 drives the table 50 to move in the front direction of the vehicle 3, and stores the table 50 in the storage space S within the column cover 6.

[0023] Here, the sensor 31 is provided on the table 50 and can detect an object placed on the table 50. For example, the sensor 31 is a weight sensor, a camera sensor, or the like.

[0024] For example, as shown in FIG. 3A , if the sensor 31 is a weight sensor, the weight sensor is disposed near the first drive unit 21 connected to the table 50. Specifically, if the table 50 is composed of a table main body 50a on which an object is placed and a connecting part 50b connected to the table main body 50a and the first drive unit 21 and moved by the first drive unit 21, the weight sensor is disposed at the connecting part 50b. In this case, the connecting part 50b is bent by the weight of an object placed on the table main body 50a, and the strain gauge of the weight sensor can detect this strain. In particular, because stress due to the object is concentrated at the connecting part 50b, which corresponds to the base of the table 50, disposing the weight sensor at this connecting part 50b is expected to improve the detection sensitivity of an object placed on the table 50.

[0025] For example, if the sensor 31 is a camera sensor, the camera sensor is disposed so as to be able to capture an image of the surface of the table 50. For example, since the camera sensor can capture an image of the surface of the table 50, it is possible to detect an object placed on the surface of the table 50 by image recognition technology.

[0026] The sensor 31 outputs a detection result indicating that an object is placed on the table 50 to the control unit 30.

[0027] The control unit 30 can further control the warning unit 70 .

[0028] The warning unit 70 outputs a warning under the control of the control unit 30 based on the detection result from the sensor 31. Specifically, when the sensor 31 detects an object placed on the table 50, the warning unit 70 outputs a warning indicating that an object is placed on the table 50 under the control of the control unit 30, without driving the first driving unit 21.

[0029] Furthermore, when the output of sensor 31 is equal to or greater than a predetermined output, control unit 30 may cause warning unit 70 to output a warning. For example, if sensor 31 is a weight sensor, when the output of the weight sensor indicates a predetermined weight or greater, control unit 30 may cause warning unit 70 to output a warning indicating that the object is heavy. In other words, when a heavy object is placed on table 50, control unit 30 may cause warning unit 70 to output a warning indicating that table 50 is overloaded.

[0030] All warnings are given by audio output, optical output, vibration of the grip 10 on the steering wheel, vibration of the seat, display on an in-vehicle monitor, etc. Audio output is achieved by an acoustic device such as a speaker mounted on the vehicle. Optical output is achieved by an in-vehicle light mounted on the vehicle or a display device mounted on the vehicle 3, etc. Vibration is achieved by a vibrator mounted on the grip 10 or the seat, etc.

[0031] Note that the warning indicating that the object is heavy may have a different warning pattern than the warning indicating that an object is placed on the table 50. For example, the "warning indicating that the object is heavy" may be output as audio, light, vibration of the grip 10 on the steering wheel, vibration of the seat, or display on the in-vehicle monitor, and the "warning indicating that an object is placed on the table 50" may have a different warning pattern from the above warning.

[0032] Furthermore, if the sensor 31 detects an object placed on the table 50 after the warning unit 70 outputs a warning, the control unit 30 does not need to drive the first driving unit 21.

[0033] The warning unit 70 is, for example, an audio device mounted on the vehicle 3 or a display device mounted on the vehicle 3. The warning may be a warning urging the driver to store the table 50 by a sound output from the audio device, or a warning urging the driver to store the table 50 by display content displayed on the display device.

[0034] The switch 25 can output instructions to the control unit 30. The instructions output to the control unit 30 are a storage instruction and a pull-out instruction. The storage instruction is an instruction (storage signal) for controlling the driving of the first drive unit 21 so as to drive the table 50 to move forward of the vehicle 3 and store it in the column cover 6. The pull-out instruction is an instruction (pull-out signal) for controlling the driving of the first drive unit 21 so as to drive the table 50 to move from the steering column 4 to the rear of the vehicle 3 and pull it out from the column cover 6. Even if the sensor 31 detects that an object has been placed on the table 50 and the control unit 30 controls not to drive the first drive unit 21, the control unit 30 prioritizes the execution of the storage instruction and the pull-out instruction over the detection by the sensor 31. In other words, when the control unit 30 attempts to control the first drive unit 21 to move the table 50 from the steering column 4 toward the rear of the vehicle 3 when parking or stopping the vehicle, or when it attempts to control the first drive unit 21 to move the table 50 toward the front of the vehicle 3 and store it in the storage space within the column cover 6 when driving or getting in and out, the sensor 31 detects an object placed on the table 50 and does not drive the first drive unit 21, but instead outputs a warning to the warning unit 70 indicating that an object is placed on the table 50.Even if the sensor 31 continues to detect that an object is placed on the table 50 due to a false detection or malfunction even though no object is placed on the table 50, the control unit 30 can prioritize and execute the storage instruction and the pull-out instruction.

[0035] Therefore, when the driver operates the switch 25 to store the table 50, and a storage instruction is output from the switch 25, the control unit 30 controls the driving of the first drive unit 21 to drive the table 50 toward the front side of the vehicle 3 and store it in the column cover 6. Also, when the driver operates the switch 25 to pull out the table 50, and a pull-out instruction is output from the switch 25, the control unit 30 controls the driving of the first drive unit 21 to drive the table 50 toward the rear side of the vehicle 3 from the steering column 4 and pull it out from the column cover 6.

[0036] The contact sensor 32 detects contact of an object with the table 50. Specifically, when the table 50 is driven to move from the steering column 4 toward the rear side of the vehicle 3 and pulled out from the column cover 6, if the table 50 comes into contact with an obstacle, the contact sensor 32 can detect this contact with the table 50. At this time, the control unit 30 stops driving the first drive unit 21, or controls the drive of the first drive unit 21 so as to move the table 50 toward the front side of the vehicle 3 and store it inside the column cover 6.

[0037] The contact sensor 32 may be, for example, a contact sensor arranged on the outer peripheral edge of the table 50 so as to detect an obstacle that comes into contact with the table 50 .

[0038] Furthermore, the contact sensor 32 may be a current sensor that measures the load applied to the electric motor of the first drive unit 21 by an obstacle that comes into contact with the table 50 .

[0039] The spokes 2 are rod-shaped members that are connected to the steering column 4 and extend in the left-right direction from the steering column 4 when the steering position during driving is in the neutral position. The neutral position is a state in which the spokes 2 are parallel to the left-right direction (horizontal direction) so that the vehicle 3 can travel straight ahead.

[0040] A pair of grips 10 is disposed at both ends of the spoke 2 in the left-right direction. That is, the pair of grips 10 is disposed on the left and right sides of the spoke 2. Each of the pair of grips 10 has an arc shape. Note that, although the present embodiment illustrates a configuration in which the pair of grips 10 have an arc shape, the present invention is not limited to this configuration, and the pair of grips 10 may also have a linear shape.

[0041] The pair of grips 10 are rotatable relative to the spokes 2. The pair of grips 10 are automatically rotatable relative to the spokes 2 by a pair of second drive units 22 controlled by the control unit 30. Each of the pair of grips 10 is separated so as to be independently rotatable about an axis in the left-right direction of the spokes 2. Therefore, each of the pair of grips 10 is independently rotatable about an axis in the left-right direction of the spokes 2.

[0042] Each of the pair of grips 10 has a first portion and a second portion.

[0043] The first portion is a portion that extends toward the ceiling of the vehicle 3 relative to the spoke 2 when the steering position during driving is in the neutral position.

[0044] The second portion is a portion that extends toward the floor of the vehicle 3 relative to the spoke 2 when the steering position during driving is in the neutral position.

[0045] In the pair of grips 10, when the steering position during driving is in the neutral position, the length of the first portion and the length of the second portion are different. The longer of the first portion and the second portion is referred to as the long portion 11a, and the shorter of the first portion and the second portion is referred to as the short portion 12a. Note that (a) in FIG. 1 illustrates a case in which the long portion 11a extends toward the floor of the vehicle 3 and the short portion 12a extends toward the ceiling of the vehicle 3 as the neutral position, but this is not limited thereto. For example, the long portion 11a may extend toward the ceiling of the vehicle 3 and the short portion 12a may extend toward the floor of the vehicle 3 as the neutral position. Therefore, when the first portion is the long portion 11a, the second portion is referred to as the short portion 12a, and when the first portion is the short portion 12a, the second portion is referred to as the long portion 11a.

[0046] 1(a), each of the pair of grips 10 can rotate such that the short portion 12a moves toward the ceiling of the vehicle 3 and the long portion 11a moves toward the floor of the vehicle 3 during driving. In other words, since each of the pair of grips 10 can rotate with respect to the spokes 2, the long portion 11a can be positioned so that it extends toward the floor of the vehicle 3 with respect to the spokes 2, and the short portion 12a can be positioned so that it extends toward the ceiling of the vehicle 3 with respect to the spokes 2. Note that each of the pair of grips 10 may also be configured so that the short portion 12a moves toward the floor of the vehicle 3 and the long portion 11a moves toward the ceiling of the vehicle 3 during driving.

[0047] Furthermore, because each of the pair of grips 10 is rotatable relative to the spokes 2, when parking or stopping, the short portion 12a can be rotated toward the rear of the vehicle 3 and the long portion 11a can be rotated toward the front of the vehicle 3, as shown in Figure 1(b). In other words, because each of the pair of grips 10 is rotatable relative to the spokes 2, the short portion 12a can be positioned to extend toward the rear of the vehicle 3 relative to the spokes 2, and the long portion 11a can be positioned to extend toward the front of the vehicle 3 relative to the spokes 2.

[0048] 1(c), the grip 10 of the pair of grips 10 that is arranged on the door 9 side of the vehicle 3 adjacent to the vehicle steering device 1 can assume a position in which the long portion 11a extends toward the ceiling of the vehicle 3 and the short portion 12a extends toward the floor of the vehicle 3 so that the driver can get in and out of the vehicle 3 while holding the grip 10. At this time, the other grip 10 can assume a position in which the short portion 12a extends toward the rear of the vehicle 3 and the long portion 11a extends toward the front of the vehicle 3.

[0049] In this embodiment, when the driver gets in or out of the vehicle 3, the long portion 11a is in a position extending toward the ceiling of the vehicle 3 and the short portion 12a is in a position extending toward the floor of the vehicle 3, but this configuration is not limited to this. That is, in order to prevent the grip 10 from getting in the way when the driver gets in or out of the vehicle 3, the long portion 11a may be rotated, for example, toward the front of the vehicle 3 in addition to the ceiling of the vehicle 3, or toward the windshield between the front and ceiling sides of the vehicle 3. However, with these configurations, it may be difficult for the driver to get in or out of the vehicle 3 while holding the grip 10, so it is preferable that the long portion 11a be in a position extending toward the ceiling of the vehicle 3 when the driver gets in or out.

[0050] Furthermore, when the steering position of the pair of grips 10 during driving is in the neutral position, a gap is formed between the long portion 11a of one of the pair of grips 10 and the long portion 11a of the other of the pair of grips 10. Therefore, when each of the pair of grips 10 rotates, the pair of grips 10 can be prevented from interfering with the steering column 4 and the column cover 6 (see FIG. 3B) that covers the lower part of the steering column 4.

[0051] 1 and 2, the pair of second drive units 22 are provided to correspond to the pair of grips 10, respectively. Therefore, the pair of second drive units 22 rotate the pair of grips 10 so as to correspond one-to-one with the pair of grips 10. The pair of second drive units 22 are configured with a drive mechanism such as an electric motor.

[0052] The control unit 30 is electrically connected to the pair of second drive units 22 and controls the pair of second drive units 22 individually.

[0053] 1(a) and 2, the control unit 30 controls the pair of second drive units 22 so that, when the vehicle 3 is being manually driven, either the long portion 11a or the short portion 12a of the pair of grips 10 is in a position extending toward the ceiling of the vehicle 3. As a result, when the vehicle 3 is being manually driven, the long portion 11a of the pair of grips 10 is in a position extending toward the ceiling of the vehicle 3, and the short portion 12a of the pair of grips 10 is in a position extending toward the floor of the vehicle 3. Alternatively, as shown in FIG. 1(a), the short portion 12a of the pair of grips 10 is in a position extending toward the ceiling of the vehicle 3, and the long portion 11a of the pair of grips 10 is in a position extending toward the floor of the vehicle 3.

[0054] 1(b) and 2, the control unit 30 controls the pair of second drive units 22 so that when the vehicle 3 is parked, stopped, or in automatic driving, the short portions 12a of the pair of grips 10 extend toward the rear of the vehicle 3, and the long portions 11a of the pair of grips 10 extend toward the front of the vehicle 3. As a result, when the vehicle 3 is parked, stopped, or in automatic driving, the short portions 12a of the pair of grips 10 extend toward the rear of the vehicle 3, and the long portions 11a of the pair of grips 10 extend toward the front of the vehicle 3.

[0055] 1(c) and 2, when the driver gets in or out of the vehicle 3, the control unit 30 controls the second drive unit 22 on the door 9 side so that the long portion 11a of the grip 10 arranged on the door 9 side of the vehicle 3 adjacent to the vehicle steering device 1 extends toward the ceiling of the vehicle 3 and the short portion 12a of the grip 10 arranged on the door 9 side extends toward the floor of the vehicle 3. As a result, when the driver gets in or out of the vehicle 3, the long portion 11a of the grip 10 arranged on the door 9 side of the pair of grips 10 extends toward the ceiling of the vehicle 3 and the short portion 12a of the grip 10 extends toward the floor of the vehicle 3. Note that when the driver gets out of the vehicle 3, the control unit 30 may maintain the long portion 11a of the grip 10 arranged on the door 9 side extending toward the ceiling of the vehicle 3 and the short portion 12a extending toward the floor of the vehicle 3. In this case, the driver can get into the vehicle 3 while holding the grip 10.

[0056] When the sensor 31 detects an object placed on the table 50 when the driver gets in or out of the vehicle 3, the control unit 30 does not drive the first drive unit 21, but controls the second drive unit 22 on the door 9 side of the vehicle 3 adjacent to the vehicle steering device 1 so that the long portion 11a of the grip 10 arranged on the door 9 side of the vehicle 3 extends toward the ceiling of the vehicle 3, and the short portion 12a of the grip 10 arranged on the door 9 side extends toward the floor of the vehicle 3. Naturally, the grip 10 and the table 50 are designed so as not to interfere with each other.

[0057] <Example 1> Next, an example of the operation of the vehicle steering system 1 will be described with reference to FIG. 4A and other figures.

[0058] Fig. 4A is a flowchart showing a first operation example of the vehicle steering device 1. Fig. 4A illustrates a case where the sensor 31 is a weight sensor. Also, as shown in Fig. 4D (described later), the case where the first drive unit 21 is controlled to move the table 50 from the steering column 4 toward the rear of the vehicle 3 when parking or stopping, and to move the table 50 toward the front of the vehicle 3 and store it in the storage space S in the column cover 6 when driving or getting in and out of the vehicle, is illustrated.

[0059] First, the sensor 31 detects an object placed on the table 50 (S111). The sensor 31 outputs weight information indicating that the object has been placed on the table 50 to the control unit 30. At this time, the sensor 31 can detect the weight of the object placed on the table 50, and therefore can output the weight information to the control unit 30 including information indicating the weight of the object.

[0060] Next, when the control unit 30 acquires the weight information, it determines whether or not the weight of the object indicated by the weight information is equal to or greater than a predetermined weight (S112).

[0061] If the weight of the object indicated in the weight information is equal to or greater than a predetermined weight, the control unit 30 determines that a heavy object is placed (YES in S112).

[0062] If the determination in step S112 is YES, the control unit 30 does not drive the first driving unit 21, and causes the warning unit 70 to output a warning indicating that an object is placed on the table 50 and a warning indicating that the object placed on the table 50 is a heavy object (S113). As described above, the warning patterns for the warning indicating that an object is placed on the table 50 and the warning indicating that the object is a heavy object are different from each other.

[0063] On the other hand, if the weight of the object indicated in the weight information is not equal to or greater than the predetermined weight, the control unit 30 determines that no heavy object is placed (an object of less than the predetermined weight is placed) (NO in S112).

[0064] If the determination in step S112 is NO, the control unit 30 does not drive the first driving unit 21, and causes the warning unit 70 to output a warning indicating that an object is placed on the table 50 (S114).

[0065] Next, after step S113 or step S114, the control unit 30 determines whether or not the object placed on the table 50 has been removed since the warning unit 70 output the warning (S115).

[0066] If the control unit 30 determines that the object placed on the table 50 has been removed after the warning unit 70 outputs the warning (YES in S115), the control unit 30 controls the driving of the first driving unit 21 to move the table 50 toward the front side of the vehicle 3 and store it inside the column cover 6. Then, the control unit 30 ends the processing of the flowchart in FIG. 4A.

[0067] On the other hand, if the control unit 30 determines that the object placed on the table 50 has not been removed since the warning unit 70 output the warning, that is, if the sensor 31 detects an object placed on the table 50 (NO in S115), the control unit 30 does not drive the first driving unit 21 (S116). For example, if the sensor 31 detects an object placed on the table 50 even after a predetermined period has elapsed since the warning unit 70 output the warning, the control unit 30 may cause the warning unit 70 to output a warning indicating that a heavy object is placed on the table 50. Then, the control unit 30 ends the processing of the flowchart in FIG. 4A.

[0068] In this operation example, in step S112, it is determined whether the weight of the object is equal to or greater than a predetermined weight, but this process may be omitted, and step S113 may also be omitted. In other words, steps S112 and S113 in Fig. 4A are not essential processes.

[0069] <Example 2> Next, an example of the operation of the vehicle steering system 1 will be described with reference to FIG. 4B and other figures.

[0070] Fig. 4B is a flowchart showing a second operation example of the vehicle steering system 1. Fig. 4B illustrates a case where the sensor 31 is a weight sensor.

[0071] First, when the driver operates the switch 25, the switch 25 outputs an instruction to the control unit 30 (S121).

[0072] Next, when a storage instruction is output from the switch 25, the control unit 30 controls the driving of the first drive unit 21 so as to drive the table 50 to move it forward of the vehicle 3 and store it inside the column cover 6 (S122). Then, the control unit 30 ends the processing of the flowchart in FIG. 4B.

[0073] On the other hand, when a pull-out command is output from the switch 25, the control unit 30 controls the driving of the first drive unit 21 so as to drive the table 50 to move from the steering column 4 toward the rear of the vehicle 3 and pull it out from the column cover 6 (S123). Then, the control unit 30 ends the processing of the flowchart in FIG. 4B.

[0074] <Example 3> Next, an example of the operation of the vehicle steering system 1 will be described with reference to FIG. 4C and other figures.

[0075] FIG. 4C is a flowchart showing a third operation example of the vehicle steering system 1.

[0076] First, when the control unit 30 controls the driving of the first driving unit 21 to draw out the table 50 from the column cover 6, the control unit 30 determines whether the contact sensor 32 has detected contact of an object with the table 50 (S131).

[0077] Next, if the contact sensor 32 does not detect contact of an object with the table 50 (NO in S131), the control unit 30 returns the process to step S131.

[0078] On the other hand, when the contact sensor 32 detects contact of an object with the table 50 (YES in S131), the control unit 30 stops driving the first drive unit 21 or controls the driving of the first drive unit 21 so that the table 50 moves forward of the vehicle 3 and is stored inside the column cover 6 (S132). For example, when the control unit 30 stops driving the first drive unit 21, the table 50 is maintained in a state where it is pulled out to the position where the first drive unit 21 has stopped. Also, when the control unit 30 controls the driving of the first drive unit 21 so that the table 50 moves forward of the vehicle 3 and is stored inside the column cover 6, the table 50 is stored inside the column cover 6. Then, the control unit 30 ends the processing of the flowchart in FIG. 4C.

[0079] <Example 4> Next, an example of the operation of the vehicle steering system 1 will be described with reference to FIG. 4D and other figures.

[0080] FIG. 4D is a flowchart showing the vehicle steering device 1 in which the pair of grips 10 can be automatically rotated.

[0081] First, the control unit 30 determines whether the vehicle 3 is being driven (S11). The determination of whether the vehicle 3 is being driven may be made, for example, by determining whether the control unit 30 acquires information indicating that the ignition switch is ON and the shift lever is in D range (drive) from an ECU (Electronic Control Unit) or the like.

[0082] 1(a), 2, and 4D, when the control unit 30 determines that the vehicle 3 is in operation (Yes in S11), the control unit 30 controls the pair of second drive units 22 so that the long portions 11a or the short portions 12a of the pair of grips 10 extend toward the ceiling of the vehicle 3 and the short portions 12a or the long portions 11a extend toward the floor of the vehicle 3 (S14). As a result, the pair of grips 10 rotate, and the long portions 11a or the short portions 12a extend toward the ceiling of the vehicle 3 and the short portions 12a or the long portions 11a extend toward the floor of the vehicle 3. The control unit 30 proceeds to step S18.

[0083] On the other hand, when the control unit 30 determines that the vehicle 3 is not in operation (No in S11), the control unit 30 determines whether the vehicle 3 is parked or stopped (S12). The determination of whether the vehicle 3 is parked or stopped may be made, for example, by determining whether the control unit 30 acquires, from an ECU or the like, information indicating that the ignition switch is ON and the shift lever is in P range (parking), or that the ignition switch is OFF and the door 9 is closed.

[0084] When the control unit 30 determines that the vehicle 3 is parked or stopped (Yes in S12), the control unit 30 controls the pair of second drive units 22 so that the long portions 11a of the pair of grips 10 extend forward of the vehicle 3 and the short portions 12a of the pair of grips 10 extend rearward of the vehicle 3 (S15), as shown in Figures 1(b), 2, and 4D. As a result, the pair of grips 10 rotate, and the long portions 11a extend forward of the vehicle 3 and the short portions 12a extend rearward of the vehicle 3.

[0085] In step S12, the control unit 30 determines whether the vehicle 3 is parked or stopped, but is not limited to this and may determine whether the vehicle 3 is in autonomous driving mode.

[0086] Next, the control unit 30 determines whether the switch of the table 50 is ON (S16).

[0087] If the control unit 30 determines that the switch of the table 50 is OFF (No in S16), the control unit 30 returns the process to step S11.

[0088] If the control unit 30 determines that the switch of the table 50 is ON (Yes in S16), the control unit 30 controls the first drive unit 21 to move the table 50 toward the rear of the vehicle 3 (S17), as shown in (d), 2, 3A, and 4D of FIG. 1. As a result, the table 50 moves from the storage space S in the column cover 6 toward the rear of the vehicle 3 and is pulled out to a position immediately in front of the driver's seat. Then, the control unit 30 returns the process to step S11.

[0089] Furthermore, if the control unit 30 determines in step S12 that the vehicle 3 is not parked or stopped (No in S12), this means that the driver is getting in or out of the vehicle 3. Therefore, as shown in FIG. 1(c), FIG. 2, and FIG. 4D, the control unit 30 controls the pair of second drive units 22 so that the long portion 11a of the grip 10 on the door 9 side of the vehicle 3 adjacent to the vehicle steering device 1 extends toward the ceiling of the vehicle 3 (S13). As a result, the grip 10 on the door 9 side rotates, and the long portion 11a extends toward the ceiling of the vehicle 3, and the short portion 12a extends toward the floor of the vehicle 3. Note that the determination of whether or not the driver is getting in or out may be made, for example, based on whether or not the control unit 30 acquires information indicating that the ignition switch is OFF and the door 9 is open from an ECU or the like.

[0090] Next, the control unit 30 determines whether or not the table 50 is stored in the storage space S in the column cover 6 (S18).

[0091] If the control unit 30 determines that the table 50 is stored in the storage space S in the column cover 6 (Yes in S18), the control unit 30 returns the process to step S11.

[0092] On the other hand, if the control unit 30 determines that the table 50 is not stored in the column cover 6 (No in S18), the control unit 30 controls the first drive unit 21 to store the table 50 in the storage space S (S19). As a result, the table 50 moves forward of the vehicle 3 and is stored in the storage space S in the column cover 6. Then, the control unit 30 returns the process to step S11.

[0093] <Manual configuration and functions> The above describes an example in which the pair of grips 10 are automatically rotatable. However, with reference to FIG. 5, a description will be given of a case in which the pair of grips 10 are manually rotatable relative to the spokes 2.

[0094] FIG. 5 is a block diagram showing a vehicle steering device 1a in which a pair of grips 10 can be manually rotated.

[0095] In this case, the vehicle steering device 1a may further include a pair of position sensors 60 and a stopper 80 in addition to the table 50, the control unit 30a, the first drive unit 21, the sensor 31, the warning unit 70, the switch 25, the contact sensor 32, the spokes 2, and the pair of grips 10. Furthermore, the vehicle steering device 1a does not necessarily have to include the pair of second drive units 22.

[0096] The pair of position sensors 60 are provided on the pair of grips 10 in a one-to-one correspondence. The pair of position sensors 60 detect the rotational position of each of the pair of grips 10 in a one-to-one correspondence. Each of the pair of position sensors 60 outputs the rotational position of each of the pair of grips 10 to the control unit 30a. The rotational position is indicated by the attitude (position) of the pair of grips 10 relative to the spokes 2, the rotational angle of the pair of grips 10, etc.

[0097] The control unit 30a is electrically connected to the pair of position sensors 60, and acquires the rotational positions of the pair of grips 10 from the pair of position sensors 60.

[0098] Specifically, the control unit 30a outputs a driveable signal when it determines, based on the respective rotational positions of the pair of grips 10 detected by the pair of position sensors 60, that the long portions 11a or short portions 12a of the pair of grips 10 are in a position extending toward the ceiling of the vehicle 3. In other words, because the long portions 11a of the pair of grips 10 extend toward the ceiling or floor of the vehicle 3 and the short portions 12a of the pair of grips 10 extend toward the floor or ceiling of the vehicle 3, the driver can grasp the pair of grips 10 and drive the vehicle 3. In this case, the control unit 30a outputs a driveable signal.

[0099] Furthermore, the control unit 30a outputs a parking / stopping signal when it determines, based on the respective rotational positions of the pair of grips 10 detected by the pair of position sensors 60, that the short portions 12a of the pair of grips 10 are facing rearward of the vehicle 3 and the long portions 11a are extending forward of the vehicle 3. In other words, when the steering position during driving is in the neutral position, the pair of grips 10 are in a tilted position parallel to the horizontal, and the driver does not drive the vehicle 3. In this case, the control unit 30a outputs a parking / stopping signal.

[0100] Furthermore, when the control unit 30a determines, based on the rotational positions of the pair of grips 10 detected by the pair of position sensors 60, that the long portion 11a of the grip 10 arranged on the door 9 side of the vehicle 3 adjacent to the vehicle steering device 1a is in a position extending toward the ceiling of the vehicle 3 and the short portion 12a is in a position extending toward the floor of the vehicle 3, the control unit 30a outputs a door unlock permission signal. In other words, when the driver wants to unlock the door 9 of the vehicle 3 adjacent to the vehicle steering device 1a, the driver manually adjusts the long portion 11a of the grip 10 arranged on the door 9 side to a position extending toward the ceiling of the vehicle 3 and the short portion 12a of the grip 10 arranged on the door 9 side to a position extending toward the floor of the vehicle 3. As a result, the control unit 30a outputs the door unlock permission signal, allowing the driver to get out of the vehicle 3. Furthermore, when the driver gets into the vehicle 3, he or she can sit in the driver's seat while holding the long portion 11a of the grip 10 arranged on the door 9 side. This makes it easier for the driver to get in and out of the vehicle 3.

[0101] The stopper 80 is electrically connected to the control unit 30a and limits the movement of the table 50. The stopper 80 is, for example, a solenoid stopper configured with an electromagnetic actuator or the like.

[0102] The stopper 80 is controlled by the control unit 30a to restrict or release the restriction on the movement of the table 50. When the stopper 80 is released, the stopper 80 outputs a signal indicating that the stopper 80 is released to the control unit 30a. When the stopper 80 is not released, the stopper 80 outputs a signal indicating that the stopper 80 is not released to the control unit 30a.

[0103] When the control unit 30a outputs a parking / stopping signal, it releases the stopper 80 that restricts the movement of the table 50 in the rearward direction of the vehicle 3. In other words, when the vehicle 3 is parked or stopped, the driver may pull out the table 50 stored in the storage space S in the column cover 6, so the control unit 30a drives and releases the stopper 80.

[0104] When the control unit 30a outputs the operation enable signal or the door unlock permission signal, if the stopper 80 is in the released state, the control unit 30a causes the warning unit 70 to output a warning urging the user to store the table 50.

[0105] <Example 2> Next, an example of the operation of the vehicle steering system 1a will be described with reference to FIG. 6 and other figures.

[0106] FIG. 6 is a flowchart showing a vehicle steering device 1a in which the pair of grips 10 are manually rotatable.

[0107] First, as shown in Figures 5 and 6, the control unit 30a determines, based on the rotational positions of the pair of grips 10 detected by the pair of position sensors 60, whether the long portion 11a or the short portion 12a of the pair of grips 10 extends toward the ceiling of the vehicle 3 and whether the short portion 12a or the long portion 11a of the pair of grips 10 extends toward the floor of the vehicle 3 (S21).

[0108] When the control unit 30a determines that the long portion 11a or the short portion 12a of the pair of grips 10 extends toward the ceiling of the vehicle 3 and the short portion 12a or the long portion 11a of the pair of grips 10 extends toward the floor of the vehicle 3 (Yes in S21), the control unit 30a outputs a drive enable signal to the ECU (S24). This makes the vehicle 3 driveable. The control unit 30a proceeds to step S27.

[0109] On the other hand, if the control unit 30a determines that the long portion 11a or the short portion 12a of the pair of grips 10 is not extended toward the ceiling of the vehicle 3 (No in S21), the control unit 30a determines whether the long portion 11a of the pair of grips 10 is extended toward the front side of the vehicle 3 and the short portion 12a of the pair of grips 10 is extended toward the rear side of the vehicle 3 (S22).

[0110] If the control unit 30a determines that the long portions 11a of the pair of grips 10 extend toward the front side of the vehicle 3 and the short portions 12a of the pair of grips 10 extend toward the rear side of the vehicle 3 (Yes in S22), the control unit 30a outputs a parking signal (S25).

[0111] Next, when the parking / stopping signal is output, the control unit 30a controls the stopper 80 that restricts the movement of the table 50 in the rearward direction of the vehicle 3 to be released (S26). Then, the control unit 30a returns the process to step S21.

[0112] Furthermore, in the above-mentioned step S22, if the control unit 30a determines that the long portions 11a of the pair of grips 10 are not extending toward the front side of the vehicle 3 and the short portions 12a of the pair of grips 10 are not extending toward the rear side of the vehicle 3 (No in S22), since the state is neither that of Figure 1(a) nor that of Figure 1(b), the control unit 30a determines that the state is that of Figure 1(c), and outputs a door unlock permission signal to the ECU (S23).

[0113] Next, the control unit 30a determines whether the stopper 80 is released or not (S27).

[0114] If the control unit 30a determines that the stopper 80 has not been released (No in S27), the process returns to step S21. In other words, if the stopper 80 has not been released, the long portion 11a or the short portion 12a of the pair of grips 10 extends toward the ceiling of the vehicle 3, indicating that the table 50 is stored in the storage space S inside the column cover 6, and the short portion 12a or the long portion 11a of the pair of grips 10 can assume a position in which it extends toward the floor of the vehicle 3.

[0115] If the control unit 30a determines that the stopper 80 is released (Yes in S27), the control unit 30a causes the warning unit 70 to output a warning prompting the user to store the table 50 (S28). Then, the control unit 30a returns the process to step S21.

[0116] Although the present embodiment illustrates a configuration in which the vehicle steering system 1a includes the table 50, the vehicle steering system 1a may not include the table 50.

[0117] (Modification of the embodiment) Next, a vehicle steering system 1b according to this modified example will be described with reference to FIGS.

[0118] FIG. 7 is a perspective view showing a vehicle steering device 1b in which the steering wheel 100 can be automatically rotated. FIG. 7(a) shows a case in which the steering wheel position during driving is in a neutral position. FIG. 7(b) shows a case in which the pair of steering wheels 100 are tilted and in a horizontal position. FIG. 7(c) shows a case in which the steering wheels 100 are in a vertical position so that the connection parts 13 are located above the spokes 2. FIG. 7(d) shows a case in which the steering wheels 100 are tilted and in a horizontal position and the table 50 is pulled out. FIG. 8 is a block diagram showing a vehicle steering device 1b in which the steering wheel 100 can be automatically rotated.

[0119] This modified example differs from the embodiment in that one end of the pair of grips 10 is integrally connected to the other. Since the configuration of the vehicle steering device 1b in this modified example is the same as the configuration shown in the embodiment, the configuration of the vehicle steering device 1b in this modified example will be assigned the same reference numerals and explanations thereof will be omitted as appropriate.

[0120] <Automatic configuration and functions> In this modification, a semicircular grip is formed by connecting an end portion (long portion 11a) of one of the pair of grips to an end portion (long portion 11a) of the other grip at a connecting portion 13. In this modification, the pair of grips (semicircular grips) connected at the connecting portion 13 are collectively referred to as a steering wheel 100.

[0121] As shown in FIGS. 7 and 8, a vehicle steering device 1b of this modified example includes a spoke 2, a steering wheel 100, a third drive unit 23, and a control unit 30b.

[0122] The left end of the spoke 2 is connected to the left end of the steering wheel 100 , and the right end of the spoke 2 is connected to the right end of the steering wheel 100 .

[0123] The steering wheel 100 is rotatable relative to the spokes 2. The steering wheel 100 is automatically rotatable relative to the spokes 2 by a third drive unit 23 controlled by the control unit 30b. The steering wheel 100 rotates integrally relative to the spokes 2 because the pair of grips 10 are integrated by the connection unit 13.

[0124] The steering wheel 100 also has a connecting portion 13 corresponding to the long portion 11a described above, and the short portion 12a described above.

[0125] 7(a), the steering wheel 100 is rotatable such that the short portion 12a is rotatable toward the ceiling of the vehicle 3 and the connection portion 13 is rotatable toward the floor of the vehicle 3 during driving. In other words, because the steering wheel 100 is rotatable relative to the spokes 2, the steering wheel 100 can be positioned such that the connection portion 13 is disposed toward the floor of the vehicle 3 relative to the spokes 2, and the short portion 12a extends toward the ceiling of the vehicle 3 relative to the spokes 2. Note that the steering wheel 100 may also be rotatable such that the short portion 12a is rotatable toward the floor of the vehicle 3 and the connection portion 13 is rotatable toward the ceiling of the vehicle 3 during driving.

[0126] Furthermore, because the steering wheel 100 is rotatable relative to the spokes 2, when parking or stopping, the short portion 12a can be rotated toward the rear of the vehicle 3 and the long portion 11a can be rotated toward the front of the vehicle 3, as shown in Figure 7(b). In other words, because the steering wheel 100 is rotatable relative to the spokes 2, the short portion 12a can be positioned so that it extends toward the rear of the vehicle 3 relative to the spokes 2, and the connection portion 13 can be positioned so that it is disposed toward the front of the vehicle 3 relative to the spokes 2.

[0127] Furthermore, as shown in (c) of Figure 7, when the driver gets in or out of the vehicle 3, the steering wheel 100 can be positioned so that the connection part 13 is positioned toward the ceiling of the vehicle 3 relative to the spokes 2, and the short part 12a extends toward the floor of the vehicle 3, so that the driver can get in or out of the vehicle 3 while holding the steering wheel 100.

[0128] In this modified example, when the driver gets in or out of the vehicle 3, the connection portion 13 is positioned relative to the spokes 2 toward the ceiling of the vehicle 3, and the short portion 12a is positioned extending toward the floor of the vehicle 3, but this configuration is not limiting. In other words, in order to prevent the steering wheel 100 from getting in the way when the driver gets in or out of the vehicle 3, the connection portion 13 may be positioned not only on the ceiling side of the vehicle 3, but also on the front side of the vehicle 3, or in the direction of the windshield between the front side of the vehicle 3 and the ceiling side. However, with these configurations, it may be difficult for the driver to get in or out of the vehicle 3 while holding the steering wheel 100, so it is preferable that the connection portion 13 be positioned toward the ceiling of the vehicle 3 when the driver gets in or out of the vehicle 3.

[0129] The third drive unit 23 is driven to rotate the steering wheel 100. The third drive unit 23 is configured with a drive mechanism such as an electric motor.

[0130] The control unit 30b is electrically connected to the third driving unit 23 and controls the third driving unit 23.

[0131] 7(a) and 8, the control unit 30b controls the third drive unit 23 so that, when the vehicle 3 is being driven, either the connection portion 13 or the short portion 12a of the steering wheel 100 is positioned toward the ceiling of the vehicle 3. As a result, when the vehicle 3 is being driven, the connection portion 13 of the steering wheel 100 is positioned toward the ceiling of the vehicle 3 relative to the spokes 2, and the short portion 12a of the steering wheel 100 extends toward the floor of the vehicle 3. Alternatively, as shown in FIG. 7(a), the short portion 12a of the steering wheel 100 is positioned toward the ceiling of the vehicle 3, and the connection portion 13 of the steering wheel 100 is positioned toward the floor of the vehicle 3 relative to the spokes 2.

[0132] 7(b) and 8, when the vehicle 3 is parked or stopped or during autonomous driving, the control unit 30b controls the third drive unit 23 so that the short portion 12a of the steering wheel 100 extends toward the rear of the vehicle 3 and the connection portion 13 of the steering wheel 100 is disposed on the front side of the vehicle 3 with respect to the spokes 2. As a result, when the vehicle 3 is parked or stopped, the short portion 12a of the steering wheel 100 extends toward the rear of the vehicle 3 and the connection portion 13 of the steering wheel 100 is disposed on the front side of the vehicle 3.

[0133] 7(c) and 8, the control unit 30b controls the third drive unit 23 so that, when the driver gets in or out of the vehicle 3, the connection portion 13 of the steering wheel 100 is positioned relative to the spokes 2 toward the ceiling of the vehicle 3 and the short portion 12a of the steering wheel 100 extends toward the floor of the vehicle 3. As a result, when the driver gets in or out of the vehicle 3, the connection portion 13 of the steering wheel 100 is positioned relative to the spokes 2 toward the ceiling of the vehicle 3 and the short portion 12a of the steering wheel 100 extends toward the floor of the vehicle 3.

[0134] In order to distinguish between a case in which the connection part 13 of the steering wheel 100 is positioned toward the ceiling of the vehicle 3 when the driver is getting in or out of the vehicle and a case in which the connection part 13 of the steering wheel 100 is positioned toward the ceiling of the vehicle 3 when the driver is getting in or out of the vehicle, the control part 30b controls the third drive part 23 so that the position of the connection part 13 differs depending on whether the driver is driving or getting in or out of the vehicle. That is, the control part 30b controls the third drive part 23 so that the connection part 13 is positioned toward the ceiling closer to the front window when driving, and controls the third drive part 23 so that the connection part 13 is positioned toward the ceiling closer to the seat when getting in or out of the vehicle.

[0135] In addition, the vehicle steering device 1b may further include a table 50, a first drive unit 21, a sensor 31, a warning unit 70, a switch 25, and a contact sensor 32, in addition to the spokes 2, the steering wheel 100, the third drive unit 23, and the control unit 30b, as in the above embodiment.

[0136] As shown in (d) of Figure 7, the table 50 is disposed below the vehicle steering device 1b and is movable in the longitudinal direction of the vehicle 3. The table 50 is stored in a storage space S in a column cover 6 (see Figures 3A and 3B) that covers the lower part of the steering column 4. The table 50 can be pulled out of the storage space S in the column cover 6 to move closer to the driver's seat.

[0137] The table 50 further includes an input means 51. The input means 51 is a touchpad, a touch panel, or a projection keyboard.

[0138] The first drive unit 21 drives the table 50 to move in the fore-and-aft direction of the vehicle 3. Specifically, when the first drive unit 21 drives the table 50 to move from the steering column 4 toward the rear of the vehicle 3, the table 50 moves toward the rear of the vehicle 3 so that the table 50 protrudes from the column cover 6 and is positioned immediately in front of the driver's seat. The first drive unit 21 also drives the table 50 to move toward the front of the vehicle 3, and stores the table 50 in the storage space S within the column cover 6.

[0139] The control unit 30b controls the first drive unit 21 to move the table 50 from the steering column 4 toward the rear of the vehicle 3 when parking or stopping the vehicle. In addition, the control unit 30b controls the first drive unit 21 to move the table 50 toward the front of the vehicle 3 and store it in the storage space S in the column cover 6 when driving or getting in or out of the vehicle.

[0140] <Example 1> Next, an example of the operation of the vehicle steering system 1b will be described with reference to FIG.

[0141] 9 is a flowchart showing a vehicle steering device 1b that can automatically rotate the steering wheel 100. Note that here, a case will be described in which the connection part 13 of the steering wheel 100 is arranged on the floor side of the vehicle 3 when driving.

[0142] First, the control unit 30b determines whether the vehicle 3 is driving (S31).

[0143] If the control unit 30b determines that the vehicle 3 is in operation (Yes in S31), the control unit 30b controls the third drive unit 23 so that the connection portion 13 of the steering wheel 100 is positioned on the floor side of the vehicle 3 relative to the spokes 2, and the short portion 12a extends toward the ceiling of the vehicle 3 (S34). As a result, the steering wheel 100 rotates, and the connection portion 13 is positioned on the floor side of the vehicle 3 relative to the spokes 2, and the short portion 12a extends toward the ceiling of the vehicle 3. The control unit 30b proceeds to step S38.

[0144] On the other hand, when the control unit 30b determines that the vehicle 3 is not driving (No in S31), the control unit 30b determines whether the vehicle 3 is parked or stopped (S32).

[0145] When the control unit 30b determines that the vehicle 3 is parked or stopped (Yes in S32), the control unit 30b controls the third drive unit 23 so that the connection portion 13 of the steering wheel 100 is positioned forward of the vehicle 3 relative to the spokes 2 and the short portion 12a extends rearward of the vehicle 3 (S35), as shown in Figure 7(b), 8, and 9. This causes the steering wheel 100 to rotate, and the connection portion 13 is positioned forward of the vehicle 3 relative to the spokes 2 and the short portion 12a extends rearward of the vehicle 3.

[0146] In step S32, the control unit 30b determines whether the vehicle 3 is parked or stopped, but is not limited to this and may determine whether the vehicle 3 is automatically driven.

[0147] Next, the control unit 30b determines whether the switch of the table 50 is ON (S36).

[0148] If the control unit 30b determines that the switch of the table 50 is OFF (No in S36), the control unit 30b returns the process to step S31.

[0149] When the control unit 30b determines that the switch of the table 50 is ON (Yes in S36), the control unit 30b controls the first drive unit 21 to move the table 50 toward the rear of the vehicle 3 (S37), as shown in (d), 8, and 9. As a result, the table 50 moves from inside the column cover 6 toward the rear of the vehicle 3 and is pulled out to just in front of the driver's seat. Then, the control unit 30b returns the process to step S31.

[0150] Furthermore, in the above-mentioned step S32, if the control unit 30b determines that the vehicle 3 is not parked or stopped (No in S32), this means that the driver is getting on or off the vehicle 3, and therefore, as shown in Figure 7(c), 8, and 9, the control unit 30b controls the third drive unit 23 to position the connection portion 13 of the steering wheel 100 toward the ceiling of the vehicle 3 with respect to the spokes 2 (S33). As a result, the steering wheel 100 rotates to position the connection portion 13 toward the ceiling of the vehicle 3 with respect to the spokes 2, and the short portion 12a extends toward the floor of the vehicle 3.

[0151] Next, the control unit 30b determines whether or not the table 50 is stored in the storage space S in the column cover 6 (S38).

[0152] If the control unit 30b determines that the table 50 is stored in the storage space S in the column cover 6 (Yes in S38), the process returns to step S31.

[0153] On the other hand, if the control unit 30b determines that the table 50 is not stored in the storage space S inside the column cover 6 (No in S38), the control unit 30b controls the first drive unit 21 to store the table 50 (S39). As a result, the table 50 moves forward of the vehicle 3 and is stored in the storage space S inside the column cover 6. Then, the control unit 30b returns the process to step S31.

[0154] <Manual configuration and functions> The above describes the case where the steering wheel 100 is automatically rotatable, but with reference to FIG. 10, a case where the steering wheel 100 is manually rotatable relative to the spokes 2 will be described.

[0155] FIG. 10 is a block diagram showing a vehicle steering device 1c in which a steering wheel 100 can be manually turned.

[0156] In this case, the vehicle steering device 1c may further include a position sensor 60 and a stopper 80 in addition to the spoke 2, the steering wheel 100, the control unit 30c, the first drive unit 21, the table 50, the sensor 31, the warning unit 70, the switch 25, and the contact sensor 32. Furthermore, the vehicle steering device 1c does not necessarily have to include the third drive unit 23.

[0157] The position sensor 60 detects the rotation position of the steering wheel 100. The position sensor 60 outputs the rotation position of the steering wheel 100 to the control unit 30c.

[0158] The control unit 30c is electrically connected to the position sensor 60 and acquires the rotational positions of the steering wheel 100.

[0159] Specifically, the control unit 30c outputs a drivable signal when it determines, based on each rotation position of the steering wheel 100 detected by the position sensor 60, that the connection portion 13 or the short portion 12a of the steering wheel 100 is positioned toward the ceiling of the vehicle 3. In other words, the connection portion 13 of the steering wheel 100 is positioned toward the ceiling or floor of the vehicle 3, and the short portion 12a of the steering wheel 100 extends toward the floor or ceiling of the vehicle 3, so that the driver can grip the steering wheel 100 and drive the vehicle 3. In this case, the control unit 30c outputs a drivable signal.

[0160] Furthermore, the control unit 30c outputs a parking / stopping signal when it determines, based on each rotational position of the steering wheel 100 detected by the position sensor 60, that the short portion 12a of the steering wheel 100 faces the rear of the vehicle 3 and the connection portion 13 is disposed on the front side of the vehicle 3 with respect to the spokes 2. In other words, when the steering position during driving is in the neutral position, the steering wheel 100 is in a tilted position parallel to the horizontal, and the driver is not driving the vehicle 3. In this case, the control unit 30c outputs a parking / stopping signal.

[0161] Furthermore, when the control unit 30c determines, based on the rotational positions of the steering wheel 100 detected by the position sensor 60, that the connection portion 13 of the steering wheel 100 is positioned toward the ceiling of the vehicle 3 relative to the spokes 2 and that the short portion 12a of the steering wheel 100 extends toward the floor of the vehicle 3, the control unit 30c outputs a door unlock permission signal. In other words, when the driver wants to unlock the door 9 of the vehicle 3 adjacent to the vehicle steering device 1, the driver manually adjusts the steering wheel 100 so that the connection portion 13 of the steering wheel 100 is positioned toward the ceiling of the vehicle 3 relative to the spokes 2 and that the short portion 12a of the steering wheel 100 extends toward the floor of the vehicle 3. This causes the control unit 30c to output the door unlock permission signal, allowing the driver to get out of the vehicle 3. Furthermore, when the driver gets into the vehicle 3, the driver can sit in the driver's seat while holding the long portion 11a of the steering wheel 100. This makes it easier for the driver to get in and out of the vehicle 3.

[0162] In addition, in order to distinguish between a case in which the connection part 13 of the steering wheel 100 is positioned toward the ceiling of the vehicle 3 when the driver is getting in or out of the vehicle, and a case in which the connection part 13 of the steering wheel 100 is positioned toward the ceiling of the vehicle 3 when the driver is getting in or out of the vehicle, the control unit 30c determines whether the driver is driving or getting in or out based on the position of the connection part 13 using the position sensor 60. That is, the connection part 13 is positioned toward the ceiling closer to the front window when driving, and is positioned toward the ceiling closer to the seat when getting in or out, so that it can be positioned using, for example, a moderation mechanism. This allows the control unit 30c to determine whether the driver is driving or getting in or out based on the output of the position sensor 60.

[0163] The stopper 80 is electrically connected to the control unit 30c and restricts the movement of the table 50. The stopper 80 is controlled by the control unit 30c to restrict or release the restriction on the movement of the table 50. When the stopper 80 is released, the stopper 80 outputs a signal to the control unit 30c indicating that the stopper 80 is released. When the stopper 80 is not released, the stopper 80 outputs a signal to the control unit 30c indicating that the stopper 80 is not released.

[0164] When the control unit 30c outputs a parking / stopping signal, it releases the stopper 80 that restricts the movement of the table 50 in the rearward direction of the vehicle 3. In other words, when the vehicle 3 is parked or stopped, the driver may pull out the table 50 stored in the storage space S in the column cover 6, so the control unit 30c releases the stopper 80.

[0165] When the control unit 30c outputs the operation enable signal or the door unlock permission signal, if the stopper 80 is in the released state, the control unit 30c causes the warning unit 70 to output a warning urging the user to store the table 50.

[0166] <Example 2> Next, an example of the operation of the vehicle steering system 1c will be described with reference to FIG.

[0167] 11 is a flowchart showing a vehicle steering device 1c in which the steering wheel 100 can be manually turned. Note that the case where the connection part 13 of the steering wheel 100 is disposed on the floor side of the vehicle 3 during driving will be described here.

[0168] First, the control unit 30c determines, based on the rotational position of the steering wheel 100 detected by the position sensor 60, whether the connection portion 13 of the steering wheel 100 is positioned toward the floor of the vehicle 3 relative to the spokes 2 and whether the short portion 12a of the steering wheel 100 is in a position extending toward the ceiling of the vehicle 3 (S41).

[0169] If the control unit 30c determines that the connection portion 13 of the steering wheel 100 is disposed on the floor side of the vehicle 3 relative to the spokes 2 and that the short portion 12a of the steering wheel 100 is in a position extending toward the ceiling side of the vehicle 3 (Yes in S41), the control unit 30c outputs a drivable signal to the ECU (S44). This makes the vehicle 3 drivable. The control unit 30c proceeds to step S47.

[0170] On the other hand, if the control unit 30c determines that the connection portion 13 of the steering wheel 100 is positioned toward the floor of the vehicle 3 relative to the spoke 2 and that the short portion 12a of the steering wheel 100 is not in a position extending toward the ceiling of the vehicle 3 (No in S41), the control unit 30c determines whether the connection portion 13 of the steering wheel 100 is positioned toward the front of the vehicle 3 relative to the spoke 2 and that the short portion 12a of the steering wheel 100 is in a position extending toward the rear of the vehicle 3 (S42).

[0171] If the control unit 30c determines that the connection portion 13 of the steering wheel 100 is positioned toward the front of the vehicle 3 relative to the spoke 2 and that the short portion 12a of the steering wheel 100 is in a position extending toward the rear of the vehicle 3 (Yes in S42), the control unit 30c outputs a parking / stopping signal (S45).

[0172] Next, when the parking / stopping signal is output, the control unit 30c controls the stopper 80 that restricts the movement of the table 50 in the rearward direction of the vehicle 3 to be released (S46). Then, the control unit 30c returns the process to step S41.

[0173] Furthermore, in the above-mentioned step S42, if the control unit 30c determines that the connection portion 13 of the steering wheel 100 is positioned toward the front of the vehicle 3 relative to the spoke 2 and that the short portion 12a of the steering wheel 100 is not in a position extending toward the rear of the vehicle 3 (No in S42), since the state is neither that of Figure 7(a) nor that of Figure 7(b), the control unit 30c determines that the state is that of Figure 7(c), and outputs a door unlock permission signal to the ECU (S43).

[0174] Next, the control unit 30c determines whether the stopper 80 is released or not (S47).

[0175] If the control unit 30c determines that the stopper 80 has not been released (No in S47), the process returns to step S41.

[0176] If the control unit 30c determines that the stopper 80 is released (Yes in S47), the control unit 30c causes the warning unit 70 to output a warning prompting the user to store the table 50 (S48). Then, the control unit 30c returns the process to step S41.

[0177] In the modified example of the present embodiment, the vehicle steering system 1c is provided with the table 50, but the vehicle steering system 1c may not have the table 50.

[0178] (Other variations) For example, in the above embodiment, the first portion and the second portion may have the same length. In this case, for example, the short portion 12a may be referred to as the first portion or the second portion, and the long portion 11a may be referred to as the second portion or the first portion.

[0179] In the above-described embodiment, the vehicle steering device 1d may have a configuration as shown in Fig. 12. Fig. 12 is a block diagram showing another modified example of the vehicle steering device 1d. Note that in the configuration of Fig. 12, the vehicle steering device 1d does not include the stopper 80.

[0180] As shown in FIG. 12, the vehicle steering device 1d further includes a connection detection unit 90 that detects connection between a tongue of a seat belt provided in the vehicle 3 and a buckle provided in the driver's seat. When the connection detection unit 90 detects connection between the tongue and the buckle, it outputs a signal indicating that the tongue and the buckle have been connected to the control unit 30. In this case, the control unit 30 controls the pair of second drive units 22 so that either the long portion 11a or the short portion 12a of the pair of grips 10 is in a position extending toward the ceiling of the vehicle 3, as shown in FIG. 1(a). In addition, the control unit 30b controls the third drive unit 23 so that the connection portion 13 of the steering wheel 100 is positioned closer to the floor of the vehicle 3 than the spokes 2, as shown in FIG. 7(a).

[0181] Furthermore, when the connection detection unit 90 detects that the connection between the tongue and the buckle has been released, it outputs a signal indicating that the connection between the tongue and the buckle has been released to the control unit 30. In this case, the control unit 30 controls the pair of second drive units 22 so that the long portions 11a of the pair of grips 10 are in a position extending forward of the vehicle 3 and the short portions 12a of the pair of grips 10 are in a position extending rearward of the vehicle, as shown in (b) of FIG. 7. Furthermore, the control unit 30b controls the third drive unit 23 so that the connection portion 13 of the steering wheel 100 is positioned further forward of the vehicle than the spokes 2, as shown in (b) of FIG.

[0182] In the above-described embodiment, the vehicle steering device 1e may have a configuration as shown in Fig. 13. Fig. 13 is another block diagram showing a vehicle steering device 1e according to another modified example. Note that in the configuration of Fig. 13, the vehicle steering device 1e does not include a stopper 80.

[0183] As shown in FIG. 13, the vehicle steering device 1e further includes an operation input unit 91 that allows the driver to input operations. The operation input unit 91 is, for example, a capacitive touchpad. The operation input unit 91 is provided on the end surface of each of the short portions 12a of the pair of grips 10. The operation input unit 91 may be provided on only one of the pair of grips 10, or on both of them.

[0184] (Action and effect) Next, the effects of the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e in the above-described embodiment, the modified embodiment, and other modified embodiments will be described.

[0185] The vehicle steering device 1, 1a, 1b, 1c, 1d, 1e of the technology 1 in this embodiment and the like includes a spoke 2 of a steering wheel 100, a pair of arc-shaped or linear grips 10 arranged on the left and right of the spoke 2, a table 50 stored in a column cover 6 covering the lower part of the steering column 4, a sensor 31 provided on the table 50, a first drive unit 21 that drives the table 50 to move from the steering column 4 toward the rear side of the vehicle 3, pulls it out of the column cover 6, and drives the table 50 to move toward the front side of the vehicle 3, and stores it in the column cover 6, and and control units 30, 30a, 30b, 30c that control the first drive unit 21, and the pair of grips 10 are configured to be rotatable relative to the spokes 2, and the control units 30, 30a, 30b, 30c control the drive of the first drive unit 21 to move the table 50 from the steering column 4 to the rear side of the vehicle 3 when the vehicle 3 is parked or stopped, and control the drive of the first drive unit 21 to move the table 50 to the front side of the vehicle 3 and store it in the column cover 6 when the vehicle 3 is being driven or when getting on or off the vehicle 3, and do not drive the first drive unit 21 when the sensor 31 detects an object placed on the table 50.

[0186] According to this configuration, the pair of grips 10 can be rotated relative to the spokes 2, so the space in front of the driver sitting in the driver's seat can be increased by rotating the pair of grips 10. Therefore, unlike the vehicle steering device of Patent Document 1, it is not necessary to provide a lateral movement mechanism for moving the steering wheel laterally from a position in front of the driver's seat to a position in front of the passenger seat.

[0187] Therefore, it is possible to increase the legroom in front of the driver's seat and simplify the structure around the steering wheel.

[0188] Furthermore, when the vehicle 3 is parked or stopped, the table 50 is automatically pulled out in front of the driver, allowing the driver to work on the table 50 without any special operations. As a result, convenience for the driver can be improved.

[0189] Furthermore, the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e of Technology 2 in the present embodiment etc. further include a warning unit 70 that outputs a warning, and when the sensor 31 detects an object placed on the table 50, the control units 30, 30a, 30b, and 30c do not drive the first drive unit 21 but cause the warning unit 70 to output a warning indicating that a heavy object is placed on the table 50. These are the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e described in Technology 1.

[0190] This makes it possible to detect an object placed on the table 50, and therefore to output a warning indicating that an object is placed on the table 50. The driver can recognize that an object is placed on the table 50, and can take action such as removing the object from the table 50. As a result, it is possible to prevent the object from falling off the table 50 due to the movement of the table 50.

[0191] Furthermore, the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e of Technology 3 in the present embodiment and the like are the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e described in Technology 2. In this case, when the output of the sensor 31 is equal to or greater than a predetermined output, the control unit 30, 30a, 30b, and 30c cause the warning unit 70 to output a warning indicating that the output is equal to or greater than the predetermined output.

[0192] This makes it possible to detect that a heavy object is placed on the table 50, and therefore to output a warning that a heavy object is placed on the table 50. This allows the driver to recognize that the object placed on the table 50 is too heavy. Therefore, the driver can take action such as removing the heavy object placed on the table 50. As a result, damage to the table 50 can be suppressed.

[0193] Furthermore, the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e of Technology 4 in the present embodiment and the like are the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e described in Technology 3. In this case, the sensor 31 is a weight sensor, and when the output of the weight sensor indicates a predetermined weight or more, the control unit 30, 30a, 30b, and 30c causes the warning unit 70 to output a warning indicating that the object is a heavy object.

[0194] This makes it possible to accurately detect that a heavy object is placed on the table 50, and therefore to output a warning that a heavy object is placed on the table 50. This allows the driver to recognize that the object placed on the table 50 is too heavy. Therefore, the driver can take action such as removing the heavy object placed on the table 50. As a result, damage to the table 50 can be suppressed.

[0195] Furthermore, the vehicle steering device 1, 1a, 1b, 1c, 1d, 1e of technology 5 in this embodiment etc. further includes a switch 25 that outputs an instruction to the control unit 30, 30a, 30b, 30c, and the control unit 30, 30a, 30b, 30c, when a storage instruction is output from the switch 25, controls the driving of the first drive unit 21 so as to drive the table 50 to move forward of the vehicle 3 and store it in the column cover 6, and when a pull-out instruction is output from the switch 25, controls the driving of the first drive unit 21 so as to drive the table 50 to move from the steering column 4 to the rearward side of the vehicle 3 and pull it out from the column cover 6, which are vehicle steering devices 1, 1a, 1b, 1c, 1d, 1e described in any one of technologies 1 to 4.

[0196] According to this, even if the table 50 does not move due to, for example, a false detection or malfunction of the sensor 31, the driver can operate the switch 25 to pull out the table 50 from the column cover 6 or store the table 50 in the column cover 6.

[0197] Furthermore, the vehicle steering device 1, 1a, 1b, 1c, 1d, 1e of technology 6 in this embodiment etc. further includes a contact sensor 32 that detects contact of an object with the table 50, and when the table 50 is driven to move from the steering column 4 toward the rear side of the vehicle 3 and pulled out from the column cover 6, if the contact sensor 32 detects contact with the table 50, the control unit 30, 30a, 30b, 30c stops driving the first drive unit 21 or controls the drive of the first drive unit 21 so as to move the table 50 toward the front side of the vehicle 3 and store it in the column cover 6, thereby forming a vehicle steering device 1, 1a, 1b, 1c, 1d, 1e described in any one of technologies 1 to 5.

[0198] This prevents the table 50 from being forcibly pulled out if the table 50 comes into contact with an obstacle when being pulled out from the column cover 6. This reduces the load on the first drive unit 21, which is made up of a drive mechanism such as an electric motor, and also reduces damage to the table 50 and the obstacle.

[0199] Furthermore, the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e of Technology 7 in the present embodiment and the like are the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e described in any one of Technologies 2 to 4. In this case, if the object placed on the table 50 is not removed after the warning unit 70 outputs the warning, the control units 30, 30a, 30b, and 30c do not drive the first drive unit 21.

[0200] According to this, even if a warning is output, if an object remains placed on the table 50, the table 50 can be prevented from being stored in the column cover 6. Therefore, it is possible to prevent the table 50 from being stored and the object placed on the table 50 from falling.

[0201] In this case, the warning unit 70 issues a warning again, which makes it easier for the driver to recognize that an object has been placed on the table 50.

[0202] Furthermore, the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e of Technology 7 in the present embodiment and the like are the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e described in any one of Technologies 1 to 6. In this case, when the driver gets in or out of the vehicle 3, if the sensor 31 detects an object placed on the table 50, the control units 30, 30a, 30b, and 30c do not drive the first drive unit 21.

[0203] According to this, if there is an object on the table 50 when the driver gets on or off the vehicle 3, the table 50 can be prevented from being stored in the column cover 6. Therefore, when the table 50 is stored, it is possible to prevent the object placed on the table 50 from falling.

[0204] Furthermore, the vehicle steering device 1, 1a, 1d, 1e of Technology 9 in the present embodiment and the like is the vehicle steering device 1, 1a, 1d, 1e described in any one of Technologies 1 to 8. In this case, each of the pair of grips 10 is separated to the left and right of the spoke 2 so as to be independently rotatable.

[0205] This allows the posture of the pair of grips 10 to be freely adjusted on the left and right, so that the width of the space in front of the driver seated in the driver's seat can be adjusted.

[0206] Furthermore, the vehicle steering devices 1, 1a, 1d, and 1e of Technology 10 in the present embodiment and the like are the vehicle steering devices 1, 1a, 1d, and 1e described in Technology 9. In this case, in the pair of grips 10, when the steering position when the driver is driving the vehicle 3 is in the neutral position, the length of the first portion extending toward the ceiling of the vehicle 3 relative to the spokes 2 is different from the length of the second portion extending toward the floor of the vehicle 3 relative to the spokes 2.

[0207] According to this, since the length of the first portion and the length of the second portion are different, for example, by arranging the short portion 12a so that it extends toward the driver, the long portion 11a can be arranged on the opposite side from the driver's side, thereby increasing the space between the driver and the steering wheel. In particular, by arranging the short portion 12a so that it extends toward the driver when parking, it becomes easier for the driver to get in and out of the vehicle 3.

[0208] Furthermore, the vehicle steering devices 1, 1a, 1d, and 1e of Technology 11 in the present embodiment and the like are the vehicle steering devices 1, 1a, 1d, and 1e described in Technology 10. In this case, if the longer of the first and second parts is the long part 11a and the shorter of the first and second parts is the short part 12a, the pair of grips 10 can rotate such that the short part 12a moves toward the rear of the vehicle 3 and the long part 11a moves toward the front of the vehicle 3 when the vehicle 3 is parked or stopped.

[0209] According to this, when parking, the pair of grips 10 can be rotated so that the long portion 11a is positioned toward the front of the vehicle 3 and the short portion 12a is positioned toward the driver, thereby increasing the space under the driver's feet.

[0210] Furthermore, the vehicle steering devices 1, 1a, 1d, and 1e of Technology 12 in the present embodiment and the like are the vehicle steering devices 1, 1a, 1d, and 1e described in Technology 11. In this case, the pair of grips 10 can rotate independently of each other. Furthermore, the grip 10 arranged on the door 9 side of the vehicle 3 adjacent to the vehicle steering devices 1, 1a, 1d, and 1e assumes a position in which the long portion 11a extends toward the ceiling of the vehicle 3 and the short portion 12a extends toward the floor of the vehicle 3 when the driver gets in or out of the vehicle 3.

[0211] Typically, the driver's seat of a vehicle has a smaller space in front than the passenger seat, etc., because the steering wheel and other components are located there. This makes it more difficult for the driver to get in and out of the seat than in other seats.

[0212] However, according to the present embodiment, the driver can get in and out of the driver's seat of the vehicle 3 while holding the long portion 11a of the grip arranged on the door 9 side of the vehicle 3. This makes it easier for the driver to get in and out of the driver's seat.

[0213] Furthermore, the vehicle steering device 1, 1d, 1e of Technology 13 in this embodiment etc. is the vehicle steering device 1, 1d, 1e described in Technology 11 or 12. In this case, the vehicle steering device 1, 1d, 1e further includes a pair of grips 10 and a pair of second drive units 22 that rotate the pair of grips 10. Furthermore, when the steering position during driving of the vehicle 3 is in the neutral position, the length of the first portion of the pair of grips 10 that extends toward the ceiling of the vehicle 3 relative to the spokes 2 is different from the length of the second portion that extends toward the floor of the vehicle 3 relative to the spokes 2. The control unit 30 controls the pair of second drive units 22 so that during manual driving, either the long portion 11a or the short portion 12a of the pair of grips 10 extends toward the ceiling of the vehicle 3, and controls the pair of second drive units 22 so that during parking, stopping, or automatic driving, the short portion 12a of the pair of grips 10 extends toward the rear of the vehicle 3 and the long portion 11a extends toward the front of the vehicle 3, and controls the pair of second drive units 22 so that when getting in and out, the long portion 11a of the grip 10 located on the door 9 side of the vehicle 3 adjacent to the vehicle steering device 1, 1d, 1e extends toward the ceiling of the vehicle 3 and the short portion 12a of the grip 10 located on the door 9 side extends toward the floor of the vehicle 3.

[0214] This allows the rotation position of the grips 10 to change automatically depending on the state of the vehicle 3, such as when driving, parking, or getting on or off, eliminating the need for the driver to perform a special operation such as rotating the pair of grips 10. This improves convenience for the driver.

[0215] Furthermore, the vehicle steering devices 1a, 1d, and 1e of Technology 14 in the present embodiment and the like are the vehicle steering devices 1a, 1d, and 1e described in Technology 12. In this case, the vehicle steering devices 1a, 1d, and 1e further include a pair of position sensors 60 that detect the rotation positions of the pair of grips 10, respectively. Furthermore, each of the pair of grips 10 can be rotated manually. The control units 30, 30a are electrically connected to a pair of position sensors 60, and when they determine, based on the rotational positions of the pair of grips 10 detected by the pair of position sensors 60, that the long portion 11a or the short portion 12a of the pair of grips 10 is extended toward the ceiling of the vehicle 3, they output a driving enable signal; when they determine, based on the rotational positions of the pair of grips 10 detected by the pair of position sensors 60, that the short portion 12a of the pair of grips 10 is facing toward the rear of the vehicle 3 and that the long portion 11a of the pair of grips 10 is extending toward the front of the vehicle 3, they output a parking signal; and when they determine, based on the rotational positions of the pair of grips 10 detected by the pair of position sensors 60, that the long portion 11a of the grip located on the door 9 side is facing toward the ceiling of the vehicle 3 and that the short portion 12a is extending toward the floor of the vehicle 3, they output a door unlock permission signal.

[0216] According to this, signals are output to the ECU in accordance with the grip position, allowing the ECU to perform appropriate vehicle control in accordance with these signals.

[0217] Furthermore, the vehicle steering devices 1a, 1d, and 1e of Technology 15 in the present embodiment and the like are the vehicle steering devices 1, 1a, 1d, and 1e described in Technology 14. In this case, the vehicle steering devices 1a, 1d, and 1e are electrically connected to the control units 30 and 30a and include a stopper 80 that limits the movement of the table 50. The control units 30 and 30a release the stopper 80 when they output a parking / stopping signal.

[0218] This allows the table 50 to be pulled out only when the vehicle is parked, which prevents a decrease in safety when the vehicle 3 is traveling, while also improving convenience by allowing the table 50 to be used only when the vehicle is parked.

[0219] Furthermore, the vehicle steering devices 1a, 1d, and 1e of technology 16 in this embodiment and the like are the vehicle steering devices 1a, 1d, and 1e described in technology 15, which further include a warning unit 70 that outputs a warning, and when the control unit 30, 30a outputs a driving enable signal or a door unlock permission signal, if the stopper 80 is released, causes the warning unit 70 to output a warning urging the driver to store the table 50 if the stopper 80 is released.

[0220] According to this, when starting to drive or get in or out of the vehicle, a warning can be issued to the driver if the table 50 is pulled out from the storage space S in the column cover 6. This makes it possible to prompt the driver to store the table 50 in the storage space S in the column cover 6. As a result, it is possible to prevent a decrease in safety when the vehicle 3 is traveling and when the driver gets in or out of the vehicle 3.

[0221] Furthermore, vehicle steering devices 1b, 1c, 1d, and 1e of Technology 17 in the present embodiment and the like are the vehicle steering devices 1b, 1c, 1d, and 1e described in Technology 1. In this case, a pair of grips 10 configure a steering wheel 100 in which one end of the grips 10 is integrally connected to one another. When the part where the pair of grips 10 are connected is defined as a connection part 13, the steering wheel 100 can be rotated so that the connection part 13 is positioned forward of the vehicle 3 when the vehicle 3 is parked or stopped.

[0222] According to this, when parking or stopping, the connection part 13 is positioned on the forward side of the vehicle 3, and the steering wheel 100 is rotated so that the short part 12a opposite the connection part 13 is positioned on the driver's side, thereby increasing the space under the driver's feet.

[0223] Furthermore, the vehicle steering devices 1b, 1c, 1d, and 1e of Technology 18 in the present embodiment and the like are the vehicle steering devices 1b, 1c, 1d, and 1e described in Technology 17. In this case, the steering wheel 100 is arranged such that the connection portion 13 is closer to the ceiling of the vehicle 3 than the spokes 2 when the driver gets in or out of the vehicle 3.

[0224] Usually, the space in front of the driver's seat of the vehicle 3 is narrower than that of the passenger seat, etc., because a steering wheel and the like are located there. This makes it more difficult for the driver to get in and out of the driver's seat than in other seats.

[0225] However, according to the present embodiment and the like, the driver can get out of or into the driver's seat of the vehicle 3 while holding onto the connection portion 13 of the vehicle 3. This makes it easier for the driver to get in and out of the driver's seat.

[0226] Furthermore, the vehicle steering devices 1b, 1d, and 1e of Technology 19 in the present embodiment and the like are the vehicle steering devices 1b, 1d, and 1e described in Technology 18. In this case, the vehicle steering devices 1b, 1d, and 1e further include a third drive unit 23 that rotates the steering wheel 100. The control units 30 and 30b control the third drive unit 23 so that the connection portion 13 of the steering wheel 100 is located closer to the floor of the vehicle 3 than the spokes 2 when the driver manually drives the vehicle 3, control the third drive unit 23 so that the connection portion 13 of the steering wheel 100 is located closer to the front of the vehicle 3 than the spokes 2 when the vehicle is parked or stopped or is automatically driven, and control the third drive unit 23 so that the connection portion 13 of the steering wheel 100 is located closer to the ceiling of the vehicle 3 than the spokes 2 when getting in and out of the vehicle.

[0227] According to this, the rotation position of the steering wheel 100 changes automatically depending on the state of the vehicle 3, such as when driving, parking, or when getting on or off, so there is no need for the driver to perform a special operation such as rotating the steering wheel 100. This improves convenience for the driver.

[0228] Furthermore, the vehicle steering devices 1b, 1d, and 1e of Technology 20 in the present embodiment and the like are the vehicle steering devices 1b, 1d, and 1e described in Technology 19. In this case, the control units 30 and 30b control the first drive unit 21 to move the table 50 from the steering column 4 toward the rear of the vehicle 3 when parking or stopping the vehicle, and control the first drive unit 21 to move the table 50 toward the front of the vehicle 3 and store it in the storage space S in the column cover 6 when driving or getting in and out of the vehicle.

[0229] According to this, when the vehicle 3 is parked or stopped, the table 50 is automatically pulled out in front of the driver. Therefore, the driver can work on the table 50 without performing any special operations. As a result, convenience for the driver can be improved.

[0230] Furthermore, the vehicle steering devices 1c, 1d, and 1e of Technology 21 in the present embodiment and the like are the vehicle steering devices 1c, 1d, and 1e described in Technology 18. In this case, the vehicle steering devices 1c, 1d, and 1e further include a position sensor 60 that detects the rotation position of the steering wheel 100. Furthermore, the steering wheel 100 can be rotated manually. The control units 30, 30c are electrically connected to the position sensor 60, and when it determines, based on the rotation position of the steering wheel 100 detected by the position sensor 60, that the connection part 13 of the steering wheel 100 is positioned closer to the floor of the vehicle 3 than the spoke 2, it outputs a driving enable signal; when it determines, based on the rotation position of the steering wheel 100 detected by the position sensor 60, that the connection part 13 of the steering wheel 100 is positioned closer to the front of the vehicle 3 than the spoke 2, it outputs a parking signal; and when it determines, based on the rotation position of the steering wheel 100 detected by the position sensor 60, that the connection part 13 of the steering wheel 100 is positioned closer to the ceiling of the vehicle 3 than the spoke 2, it outputs a door unlock permission signal.

[0231] According to this, since the respective signals are output to the ECU in accordance with the position of the steering wheel 100, the ECU can appropriately control the vehicle 3 in accordance with these signals.

[0232] Furthermore, the vehicle steering devices 1c, 1d, and 1e of Technology 22 in the present embodiment and the like are the vehicle steering devices 1c, 1d, and 1e described in Technology 21. In this case, the vehicle steering devices 1c, 1d, and 1e are electrically connected to the control units 30 and 30c and include a stopper 80 that limits the movement of the table 50. The control units 30 and 30c release the stopper 80 when they output a parking / stopping signal.

[0233] This allows the table 50 to be pulled out only when the vehicle is parked, which prevents a decrease in safety when the vehicle 3 is traveling, while also improving convenience by allowing the table 50 to be used only when the vehicle is parked.

[0234] Furthermore, the vehicle steering devices 1c, 1d, and 1e of technology 23 in this embodiment and the like are vehicle steering devices 1c, 1d, and 1e described in technology 22, which further include a warning unit 70 that outputs a warning, and when the control unit 30, 30c outputs a driving enable signal or a door unlock permission signal, if the stopper 80 is in the released state, causes the warning unit 70 to output a warning urging the user to store the table 50.

[0235] According to this, when starting to drive or get in or out of the vehicle, a warning can be issued to the driver if the table 50 is pulled out from the storage space S in the column cover 6. This makes it possible to prompt the driver to store the table 50 in the storage space S in the column cover 6. As a result, it is possible to prevent a decrease in safety when the vehicle 3 is traveling and when the driver gets in or out of the vehicle 3.

[0236] Furthermore, the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e of Technique 24 in the present embodiment and the like are the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e described in any one of Techniques 1 to 23. In this case, the table 50 further includes an input means 51.

[0237] This makes it possible to easily operate the display of the vehicle 3 on the table 50.

[0238] Furthermore, the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e of Technology 25 in the present embodiment and the like are the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e described in Technology 24. In this case, the input means 51 is a touchpad, a touch panel, or a projection keyboard.

[0239] This allows the driver to perform input operations using the input means 51 on the table 50, and when the input means 51 is not used, the table 50 can be used as a flat-topped table.

[0240] Furthermore, the vehicle steering device 1, 1a, 1d, 1e of Technology 26 in the present embodiment and the like is the vehicle steering device 1, 1a, 1d, 1e described in any one of Technology 1 to 25. In this case, the vehicle steering device 1, 1a, 1d, 1e includes a connection detection unit 90 that detects connection between a tongue of a seat belt provided in the vehicle 3 and a buckle provided in the driver's seat. In the pair of grips 10, the longer one is the long portion 11a and the shorter one is the short portion 12a. When the connection detection unit 90 detects connection between the tongue and the buckle, the control units 30, 30a electrically connected to the connection detection unit 90 control the pair of second drive units 22 so that either the long portion 11a or the short portion 12a of the pair of grips 10 is in a position extending toward the ceiling of the vehicle 3. When the connection detection unit 90 detects that the connection between the tongue and the buckle has been released, the control units 30, 30a control the pair of second drive units 22 so that the long portions 11a of the pair of grips 10 extend toward the front side of the vehicle 3 and the short portions 12a of the pair of grips 10 extend toward the rear side of the vehicle 3.

[0241] According to this, since the vehicle 3 cannot be driven unless the driver and other occupants are fastening their seat belts, it is possible to make the driver and other occupants fasten their seat belts.

[0242] Furthermore, the vehicle steering devices 1b, 1c, 1d, and 1e according to Technology 27 in the present embodiment and the like are the vehicle steering devices 1b, 1c, 1d, and 1e described in Technology 19 or 20. In this case, the vehicle steering devices 1b, 1c, 1d, and 1e include a connection detection unit 90 that detects connection between a tongue of a seat belt provided in the vehicle 3 and a buckle provided in the driver's seat. When the connection detection unit 90 detects connection between the tongue and the buckle, the control units 30 and 30b electrically connected to the connection detection unit 90 control the third drive unit 23 so that the connection portion 13 of the steering wheel 100 is positioned closer to the floor of the vehicle 3 than the spokes 2. When the connection detection unit 90 detects that the connection between the tongue and the buckle has been released, the control units 30 and 30b control the third drive unit 23 so that the connection portion 13 of the steering wheel 100 is positioned closer to the front of the vehicle 3 than the spokes 2.

[0243] According to this, since the vehicle 3 cannot be driven unless the driver and other occupants are fastening their seat belts, it is possible to make the driver and other occupants fasten their seat belts.

[0244] Furthermore, the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e of Technology 28 in the present embodiment and the like are the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e described in any one of Technologies 1 to 27. In this case, the vehicle steering devices 1, 1a, 1b, 1c, 1d, and 1e further include an operation input unit 91 that is provided at an end of at least one of the pair of grips 10 (steering wheels 100) and that allows the driver to input an operation.

[0245] This allows the driver to input operations to the operation input unit while gripping the pair of grips 10 (steering wheel 100), thereby improving the operability of the in-vehicle equipment for the driver.

[0246] In particular, when the operation input unit 91 is provided at the end of the short portion 12a, the driver can operate the operation input unit 91 on the short portion 12a with his / her fingers while holding the grip. The operation input unit 91 is, for example, a capacitive touchpad. Furthermore, when the vehicle 3 is parked or stopped or is in autonomous driving, the device operated by the operation input unit 91 may be a smartphone, a game console, or the like connected by communication with the control units 30, 30a, 30b, and 30c, in addition to on-board equipment.

[0247] (others) Although the vehicle steering device according to the present disclosure has been described above based on the above-described embodiment, the modified embodiment, and other modified embodiments, the present disclosure is not limited to these embodiment, the modified embodiment, and other modified embodiments. As long as the modifications do not deviate from the spirit of the present disclosure, various modifications conceivable by a person skilled in the art may also be included within the scope of the present disclosure.

[0248] For example, in the above-described embodiment, the modified examples thereof, and other modified examples, all or some of the components such as the control unit may be configured with dedicated hardware, or may be realized by executing a software program suitable for each component. Each component may be realized by a program execution unit such as a CPU (Central Processing Unit) or a processor reading and executing a software program recorded on a recording medium such as an HDD (Hard Disk Drive) or semiconductor memory.

[0249] The division of functional blocks in the block diagram is an example, and multiple functional blocks may be realized as a single functional block, one functional block may be divided into multiple blocks, or some functions may be moved to another functional block.Furthermore, the functions of multiple functional blocks having similar functions may be processed in parallel or in time-sharing by a single piece of hardware or software.

[0250] The order in which the steps in the flowchart are executed is merely an example for specifically explaining the present disclosure, and an order other than the above may be used. Also, some of the steps may be executed simultaneously (in parallel) with other steps.

[0251] The present disclosure also includes forms obtained by applying various modifications that a person skilled in the art would conceive of to the above-described embodiments, modified embodiments, and other modified embodiments, as well as forms realized by arbitrarily combining the components and functions of the embodiments, modified embodiments, and other modified embodiments within the scope that does not deviate from the spirit of the present disclosure. [Industrial Applicability]

[0252] A vehicle steering device according to the present disclosure can be mounted on a steering wheel of a vehicle. [Explanation of symbols]

[0253] 1, 1a, 1b, 1c, 1d, 1e Steering device for vehicle 2 spokes 3 vehicles 4 Steering column 6 Column cover 9 doors 10 Grip 13 Connection 21 First drive unit 22 Second drive unit 23 Third drive unit 25 Switch 30, 30a, 30b, 30c control unit 31 Sensors 32 Contact Sensor 50 tables 51 Input Method 70 Warning section 100 Steering

Claims

1. The steering wheel spokes and A pair of arc-shaped or linear grips arranged on the left and right of the spoke; A table stored in a column cover that covers the bottom of the steering column; a sensor provided on the table; a first drive unit that drives the table to move from the steering column toward the rear of the vehicle, thereby drawing it out from the column cover, and drives the table to move toward the front of the vehicle, thereby storing it in the column cover; a control unit that controls the first drive unit, The pair of grips are configured to be rotatable relative to the spokes, The control unit controlling the driving of the first drive unit so as to move the table from the steering column toward the rear of the vehicle when the vehicle is parked or stopped; controlling the driving of the first drive unit so that the table is moved forward of the vehicle and stored in the column cover when the vehicle is being driven or when a passenger gets on or off the vehicle; When the sensor detects an object placed on the table, the first driving unit is not driven. Vehicle steering device.

2. Further, a warning unit is provided to output a warning, When the sensor detects an object placed on the table, the control unit does not drive the first driving unit, and causes the warning unit to output a warning indicating that a heavy object is placed on the table. The vehicle steering system according to claim 1 .

3. When the output of the sensor is equal to or greater than a predetermined output, the control unit causes the warning unit to output a warning indicating that the output is equal to or greater than the predetermined output.

3. A vehicle steering system according to claim 2.

4. the sensor is a weight sensor; When the output of the weight sensor indicates a predetermined weight or more, the control unit causes the warning unit to output a warning indicating that the object is heavy.

4. A vehicle steering system according to claim 3.

5. Further, a switch for outputting an instruction to the control unit is provided. The control unit When a storage instruction is output from the switch, driving of the first drive unit is controlled so that the table is driven to move toward the front side of the vehicle and stored in the column cover; When a pull-out instruction is output from the switch, driving of the first drive unit is controlled so as to drive the table to move from the steering column toward the rear of the vehicle and pull it out from the column cover. The vehicle steering system according to any one of claims 1 to 4.

6. a contact sensor that detects contact of an object with the table; When the table is driven to move from the steering column toward the rear side of the vehicle and pulled out from the column cover, if the contact sensor detects contact with the table, the control unit stops driving the first drive unit or controls driving of the first drive unit to move the table toward the front side of the vehicle and store it in the column cover. The vehicle steering system according to any one of claims 1 to 4.

7. When the sensor detects an object placed on the table after the warning unit outputs a warning, the control unit does not drive the first driving unit. The vehicle steering system according to any one of claims 2 to 4.

8. When the driver gets on or off the vehicle, if the sensor detects an object placed on the table, the control unit does not drive the first drive unit. The vehicle steering system according to any one of claims 1 to 4.

9. The pair of grips are separated so as to be independently rotatable on the left and right sides of the spoke. The vehicle steering system according to any one of claims 1 to 4.

10. In the pair of grips, when the steering position when the driver is driving the vehicle is in a neutral position, a length of a first portion extending toward the ceiling of the vehicle with respect to the spokes and a length of a second portion extending toward the floor of the vehicle with respect to the spokes are different.

10. The vehicle steering system according to claim 9.

11. When the longer of the first portion and the second portion is defined as a long portion and the shorter of the first portion and the second portion is defined as a short portion, the pair of grips are rotatable such that the short portion moves toward the rear side of the vehicle and the long portion moves toward the front side of the vehicle when the vehicle is parked or stopped. The vehicle steering system according to claim 10.

12. The pair of grips are rotatable independently of each other, The grip disposed on the door side of the vehicle adjacent to the vehicle steering device is in a position in which the long portion extends toward the ceiling of the vehicle and the short portion extends toward the floor of the vehicle when the driver gets in or out of the vehicle.

12. A vehicle steering system according to claim 11.

13. Furthermore, a pair of the grips; a pair of second drive units that rotate the pair of grips, When the steering position during driving of the vehicle is in a neutral position, the length of the first portion of the pair of grips extending toward the ceiling of the vehicle relative to the spokes is different from the length of the second portion of the pair of grips extending toward the floor of the vehicle relative to the spokes, The control unit controlling the pair of second drive units so that, during manual driving, one of the long portion and the short portion of the pair of grips is in a position extending toward the ceiling of the vehicle; controlling the pair of second drive units so that the short portions of the pair of grips extend toward the rear side of the vehicle and the long portions extend toward the front side of the vehicle during parking / stopping or automatic driving; The pair of second drive units are controlled so that, when getting in and out of the vehicle, the long portion of the grip arranged on the door side of the vehicle adjacent to the vehicle steering device is in a position extending toward the ceiling of the vehicle, and the short portion of the grip arranged on the door side is in a position extending toward the floor of the vehicle.

12. A vehicle steering system according to claim 11.

14. Further, a pair of position sensors is provided to detect the rotational positions of the pair of grips, The pair of grips are each manually rotatable, The control unit electrically connected to the pair of position sensors, outputting a driving enable signal when it is determined that the long portion or the short portion of the pair of grips is in a position extending toward the ceiling of the vehicle based on the rotation positions of the pair of grips detected by the pair of position sensors; a parking / stopping signal is output when it is determined that the short portions of the pair of grips are facing rearward of the vehicle and the long portions of the pair of grips are extending forward of the vehicle based on the rotational positions of the pair of grips detected by the pair of position sensors; When it is determined that the long portion of the grip arranged on the door side is facing the ceiling of the vehicle and the short portion is extending toward the floor of the vehicle based on the rotation positions of the pair of grips detected by the pair of position sensors, a door unlock permission signal is output.

13. A vehicle steering system according to claim 12.

15. a stopper electrically connected to the control unit to limit movement of the table; The control unit releases the stopper when the parking / stopping signal is output.

15. A vehicle steering system according to claim 14.

16. Further, a warning unit is provided to output a warning, When the control unit outputs the operation enable signal or the door unlock permission signal, if the stopper is in a released state, the control unit outputs a warning to the warning unit to prompt the user to store the table.

16. A vehicle steering system according to claim 15.

17. The pair of grips constitute a steering wheel in which one end of each of the grips is integrally connected to the other, When the portion where the pair of grips are connected is defined as a connection portion, the steering wheel can be rotated so that the connection portion is positioned on the front side of the vehicle when the vehicle is parked or stopped. The vehicle steering system according to claim 1 .

18. When the driver gets in or out of the vehicle, the steering wheel is arranged so that the connection portion is located closer to the ceiling of the vehicle than the spokes.

18. A vehicle steering system according to claim 17.

19. Further, a third drive unit that rotates the steering wheel is provided, The control unit a driver controls the third drive unit so that the connection portion of the steering wheel is positioned closer to a floor of the vehicle than the spoke when the driver manually drives the vehicle; controlling the third drive unit so that the connection portion of the steering wheel is positioned further forward than the spokes during parking / stopping or automatic driving; When getting in and out of the vehicle, the third drive unit is controlled so that the connection portion of the steering wheel is positioned closer to the ceiling of the vehicle than the spokes.

19. A vehicle steering system according to claim 18.

20. The control unit controlling the first drive unit to move the table from the steering column toward the rear of the vehicle when parking or stopping the vehicle; When driving or when getting on or off the vehicle, the first drive unit is controlled so that the table is moved forward of the vehicle and stored in the column cover.

20. A vehicle steering system according to claim 19.

21. Further, a position sensor is provided to detect the rotation position of the steering wheel, The steering wheel is manually rotatable, The control unit electrically connected to the position sensor; outputting a drivable signal when it is determined that the connection portion of the steering wheel is positioned closer to the floor of the vehicle than the spokes based on the rotation position of the steering wheel detected by the position sensor; outputting a parking / stopping signal when it is determined that the connection portion of the steering wheel is located further forward than the spokes of the vehicle based on the rotation position of the steering wheel detected by the position sensor; When it is determined that the connection portion of the steering wheel is located closer to the ceiling of the vehicle than the spokes based on the rotation position of the steering wheel detected by the position sensor, a door unlock permission signal is output.

19. A vehicle steering system according to claim 18.

22. a stopper electrically connected to the control unit to limit movement of the table; The control unit releases the stopper when the parking / stopping signal is output.

22. A vehicle steering system according to claim 21.

23. Further, a warning unit is provided to output a warning, When the control unit outputs the operation enable signal or the door unlock permission signal, if the stopper is in a released state, the control unit outputs a warning to the warning unit to prompt the user to store the table.

23. A vehicle steering system according to claim 22.

24. The table further comprises an input means. The vehicle steering system according to any one of claims 1 to 4.

25. The input means is a touchpad, a touch panel, or a projection keyboard.

25. A vehicle steering system according to claim 24.

26. The vehicle seat belt may further include a detection unit that detects connection between a tongue of the seat belt provided in the vehicle and a buckle provided in the driver's seat, When the pair of grips are defined as a long portion having a longer length and a short portion having a shorter length, When the detection unit detects the connection between the tongue and the buckle, the control unit electrically connected to the detection unit controls the pair of second drive units so that either the long portion or the short portion of the pair of grips is in a position extending toward the ceiling of the vehicle, When the detection unit detects that the connection between the tongue and the buckle has been released, the control unit controls the pair of second drive units so that the long portions of the pair of grips are in a position extending forward of the vehicle and the short portions of the pair of grips are in a position extending rearward of the vehicle. The vehicle steering system according to any one of claims 1 to 4.

27. The vehicle seat belt may further include a detection unit that detects connection between a tongue of the seat belt provided in the vehicle and a buckle provided in the driver's seat, When the detection unit detects the connection between the tongue and the buckle, the control unit electrically connected to the detection unit controls the third drive unit so that the connection portion of the steering wheel is positioned closer to the floor of the vehicle than the spoke, When the detection unit detects that the connection between the tongue and the buckle has been released, the control unit controls the third drive unit so that the connection portion of the steering wheel is positioned further forward than the spokes of the vehicle.

21. A vehicle steering system according to claim 19 or 20.

28. Furthermore, an operation input unit is provided at an end of at least one of the pair of grips and allows the driver to input an operation. The vehicle steering system according to any one of claims 1 to 4.

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