Steering device

Abstract

The invention relates to a steering device. A steering device (100) for electric power steering that holds an operation member (200) so as to be movable between a first position, which is the position of the operation member (200) that a driver can operate, and a second position that is closer to the front of the vehicle than the first position, the steering device (100) being provided with: a fixed member (110) that is attached to the vehicle body; a movable member (120) that supports the operation member (200) and is attached to the fixed member (110) so as to be movable in the front-rear direction of the vehicle; a drive device (130) that moves the movable member (120) in the front-rear direction with respect to the fixed member (110) and fixes the operation member (200) at a first position and a second position; and an impact absorption mechanism (140) which is connected to the movable member (120) and the drive device (130) and interposed therebetween, and which, when a first load (L1) is applied to the movable member (120) from the front to the rear of the vehicle, deforms due to the first load (L1) and allows the movable member (120) to move rearward of the vehicle.

Description

Technical Field

[0001] The present invention relates to a steering device that enables a driver-operated control component to move forward of the vehicle. Background Technology

[0002] In the past, among retractable steering devices that can move steering wheel and other operating components forward of the vehicle and store them in the dashboard, there is a steering device that has a structure that mitigates the impact of a secondary collision between the driver and the operating components by deforming the components when a collision occurs while the driver is operating the operating components (for example, see Patent Document 1).

[0003] Patent Document 1: Japanese Patent Application Publication No. 2020-179841

[0004] However, if a collision occurs while the control components are housed within the dashboard in an automated driving mode, there is a problem that the space for dashboard deformation is not adequately ensured because there is a pillar near the dashboard on the passenger side that holds the control components 200, and the steering system cannot absorb the impact of the initial collision. Summary of the Invention

[0005] The present invention was made in view of the above-mentioned problems, and its object is to provide a steering device that can absorb the impact of the initial collision when the operating parts are positioned in front of the vehicle.

[0006] To achieve the above objectives, the present invention provides a steering device for electric steering that allows the operating component to be moved between a first position (operable by the driver) and a second position (located further forward of the vehicle than the first position). The device comprises: a fixed member mounted on the vehicle body; a movable member supporting the operating component and mounted on the fixed member in a manner movable in the longitudinal direction of the vehicle; a drive mechanism that moves the movable member relative to the fixed member in the longitudinal direction and fixes the operating component in the first and second positions; and a shock-absorbing mechanism connected to and clamped between the movable member and the drive mechanism, which deforms due to a first load applied to the movable member from the front to the rear of the vehicle, allowing the movable member to move rearwards.

[0007] According to the present invention, the impact absorption mechanism can absorb the initial load on the movable part caused by the initial collision and can allow the movable part to move rearward of the vehicle. Attached Figure Description

[0008] Figure 1This is a perspective view of a steering device with the operating components positioned in the first position.

[0009] Figure 2 This is a perspective view showing a steering device with the operating components positioned in the second position.

[0010] Figure 3 This is a three-dimensional diagram showing the impact absorption mechanism and its surroundings.

[0011] Figure 4 This is a three-dimensional diagram representing an impact absorption mechanism.

[0012] Figure 5 This is a cross-sectional view of the movable side mounting component and its vicinity, cut off by a plane orthogonal to the front and rear directions.

[0013] Figure 6 It is a three-dimensional diagram showing the state of the deformable component after deformation due to the first load.

[0014] Figure 7 It is a three-dimensional diagram showing the state of the deformable component after it has been deformed due to the second load.

[0015] Figure 8 This is a perspective view of another example 1 of an impact absorption mechanism.

[0016] Figure 9 This is a perspective view of another example 2 of the impact absorption mechanism.

[0017] Figure 10 This is a top view of another example 2 of the impact absorption mechanism, presented in partial perspective.

[0018] Figure 11 This is a perspective view of another example 3 of the impact absorption mechanism. Detailed Implementation

[0019] Hereinafter, embodiments of the steering device of the present invention will be described with reference to the accompanying drawings. Furthermore, the following embodiments are merely illustrative examples for the purpose of explaining the present invention and are not intended to limit the invention. For example, the shape, structure, material, structural members, relative positional relationships, connection states, numerical values, mathematical formulas, the content of each stage in the method, and the order of each stage shown in the following embodiments are examples, and sometimes include content not described below. Additionally, although there are cases where parallel, orthogonal, or other geometric representations are used, these representations do not represent mathematical rigor and include practically permissible errors and deviations. Furthermore, representations such as "simultaneous" and "same" also include practically permissible ranges.

[0020] Furthermore, the accompanying drawings are schematic diagrams with appropriate emphasis, omissions, or ratio adjustments for the purpose of illustrating the invention, and differ from the actual shapes, positional relationships, and ratios. Additionally, in some cases, the X, Y, and Z axes shown in the figures are arbitrarily set orthogonal coordinates for illustrative purposes. That is, the Z axis may not be along the vertical direction, and the X and Y axes may not exist in the horizontal plane.

[0021] Furthermore, the following description, as one embodiment, sometimes generally illustrates multiple inventions. Additionally, a portion of the content described below is intended to describe any structural element related to the present invention.

[0022] Figure 1 This is a perspective view of a steering device 100 with the operating component 200 positioned in the first position. Figure 2 This is a perspective view showing the steering device 100 with the operating component 200 positioned in a second position. The steering device 100 is positioned in a first position, i.e., a position where the driver can operate the operating component 200 (see reference). Figure 1 ), and the second position, which is closer to the front of the vehicle than the first position (refer to) Figure 2 This refers to a device used for electric steering that maintains the operation member 200 by moving between the two components. In this embodiment, the second position is a position where at least a portion of the operation member 200 is housed (accommodated) in a vehicle-mounted dashboard, instrument panel, or similar space. Electric steering (SBW) refers to a device that electronically controls the steering wheels based on information from the driver's operation of the operation member 200, without mechanical connection between the operation member 200 and the vehicle's steering wheels. Furthermore, when the operation member 200 is mechanically connected to the steering wheels and autonomous driving is in progress, a device that electronically disconnects the mechanical connection between the operation member 200 and the steering wheels and performs electronic control is also included in electric steering. The steering device 100 includes a fixed component 110, a movable component 120, a drive unit 130, and a shock absorption mechanism 140.

[0023] The operating component 200 is mounted on the end of the column shaft 210 on which the movable component 120 is mounted. In addition, on the end opposite to the end of the column shaft 210 on which the operating component 200 is mounted, there is a sensor box 220 that houses sensors that detect the rotation angle of the operating component 200 and the torque applied to the column shaft 210, as well as a reaction force device 230 that applies a steering feel to the driver when the driver operates the operating component 200.

[0024] The fixing member 110 is part of the vehicle body, for example, a component fixedly mounted to a structural component such as a reinforcement member. While the mounting method of the fixing member 110 to the vehicle body is not limited, it can be, for example, mounted in a suspended state to a reinforcement member spanning the width direction of the vehicle body. The shape of the fixing member 110 is not limited and can be arbitrarily selected depending on the shape of the vehicle body, etc. Furthermore, in the accompanying drawings, the fixing member 110 is shown in a simplified shape to represent the impact absorption mechanism 140, etc. In this embodiment, the fixing member 110 is fixedly mounted with a fixed track 111 extending along the vehicle's longitudinal direction (in the accompanying drawings, the X-axis direction). Moreover, the longitudinal direction does not only refer to the longitudinal direction strictly within the horizontal plane, but also includes the direction in which the steering device 100 mounted on the vehicle body is tilted at an angle relative to the horizontal plane.

[0025] The movable member 120 supports the operating member 200 and is mounted on the fixed member 110 in a manner that allows the supported operating member 200 to move between a position at the rear of the vehicle (in the drawings, the X+ side), i.e., a first position, and a position at the front of the vehicle (in the drawings, the X- side), i.e., a second position. The shape of the movable member 120 is not limited and can be arbitrarily selected according to the shape of the vehicle body, etc. Furthermore, the movable member 120 is shown in a simplified shape in the drawings. In this embodiment, the movable member 120 includes a movable rail 121 mounted on the fixed rail 111 in a manner that allows it to reciprocate along the longitudinal direction of the vehicle. In this embodiment, the fixed rail 111 and the movable rail 121 are connected in a manner that allows linear movement via two rows of balls (not shown) held by a retainer.

[0026] In this embodiment, with the operating member 200 positioned in the second position, the front of the movable member 120 ( Figure 4 The center (X-side) edge is configured to protrude further forward than the front end of the fixed member 110. Therefore, in the event of a collision while the operating member 200 is configured in the second position during autonomous driving, the dashboard moving toward the rear of the vehicle collides with the movable member 120 before the fixed member 110, and pushes the movable member 120 away from the fixed member 110 toward the rear of the vehicle.

[0027] The drive device 130 is a device capable of reciprocating the movable member 120 relative to the fixed member 110 in a front-rear direction and fixing the operating member 200 in a first position and a second position. The type of drive device 130 is not limited. In this embodiment, the drive device 130 includes: a feed screw 131 arranged to extend along the moving direction of the movable member 120; brackets 132 that hold both ends of the feed screw 131 so that it can rotate about an axis; a nut member 133 that engages with the feed screw 131 and reciprocates along the moving direction of the movable member 120 by the rotation of the feed screw 131; and a rotary drive device 134 equipped with a motor and a reducer for rotating the feed screw 131.

[0028] Figure 3 This is a three-dimensional view showing the impact absorption mechanism 140 and its vicinity. Figure 4 This is a perspective view showing the impact absorption mechanism 140. The impact absorption mechanism 140 is connected to and clamped between the movable member 120 and a reciprocating component (in this embodiment, a nut component 133) in the drive unit 130. When a first load L1 is applied to the movable member 120 from the front (X-side in the drawing) towards the rear (X+side in the drawing), the mechanism absorbs the impact by deforming under the first load L1 and allowing the movable member 120 to move towards the rear of the vehicle. Furthermore, deformation refers to a change in the shape of the component or the overall shape of the structure; deformation also includes deformation caused by plastic deformation, fracture, or damage, and differences in the relative positions of multiple components in the structure.

[0029] In this embodiment, when the second load L2 is applied to the movable member 120 from the rear of the vehicle toward the front, the impact absorption mechanism 140 can deform under the second load L2 and allow the movable member 120 to move toward the front of the vehicle to absorb the impact.

[0030] The structure of the impact absorption mechanism 140 is not limited. In this embodiment, the impact absorption mechanism 140 includes a deformable member 141, a fixed-side mounting member 142, a movable-side mounting member 143, and a limiting member 144.

[0031] The deformable member 141 is a member that deforms as the movable-side mounting member 143 moves relative to the fixed-side mounting member 142 toward the rear of the vehicle due to the first load L1, and absorbs the impact of the first load L1 by deforming to a predetermined profile. In this embodiment, the deformable member 141 is able to absorb the impact based on the second load L2 by deforming in a manner different from the deformation based on the first load L1.

[0032] The shape of the deformable member 141 is not limited. In this embodiment, the deformable member 141 is a plate-shaped member arranged to extend along a plane (YZ plane in the figure) intersecting the front-back direction (X-axis direction in the figure), and is a rectangular member that is longer in the vertical direction (Z-axis direction in the figure). A cutout 151 extending from the upper end to the lower end is provided at the middle of the deformable member 141 in the width direction (Y-axis direction in the figure). The cutout 151 breaks off a portion of the deformable member 141 along the left and right sides, and the deformable member 141 becomes U-shaped when viewed from the front-back direction. One side of the deformable member 141 that is broken off at the upper end is bent along a plane (XY plane in the figure) that includes the front-back direction and the width direction in order to engage with the fixed side mounting member 142, and the other side is bent along a horizontal plane (XY plane in the figure) to the opposite side in order to engage with the movable side mounting member 143.

[0033] The fixed-side mounting component 142 is a component that reciprocates in the front-back direction by the driving force of the drive device 130, and when the drive device 130 stops, it is a component that fixes one of the nut component 133, which is fixed in the front-back direction, and the deformable component 141 in the width direction.

[0034] The movable side mounting member 143 is a member that fixes the movable member 120 and the deformable member 141 to the other side in the width direction. The specific shape will be described later.

[0035] The shape of the limiting member 144 is not limited. In this embodiment, the limiting member 144 is a plate-shaped member that extends in a plane including the front-rear direction and the width direction, and has an elongated hole 147 that extends in the front-rear direction and passes through in the vertical direction. In this embodiment, the limiting member 144 is integrated with the fixed-side mounting member 142.

[0036] Figure 5 This is a cross-sectional view of the movable side mounting member 143 and its vicinity, cut off by a plane orthogonal to the front-rear direction. While the shape of the movable side mounting member 143 is not limited, in this embodiment, it is an H-shaped member having a through portion 148 with an elongated hole 147 passing through the restricting member 144 and clamping portions 149 that clamp the restricting member 144 from both the upper and lower sides. The restricting member 144 and the clamping portions 149 of the movable member 120 are together fixed by a through-type fracture member 104. Normally, the fracture member 104 fixes the restricting member 144 and the movable side mounting member 143 and allows them to move integrally in the front-rear direction. When a first load L1 or a second load L2 is applied, it breaks in an upward-downward separation manner in the initial stage, allowing the restricting member 144 and the movable side mounting member 143 to move relative to each other in the front-rear direction.

[0037] Figure 6 This is a perspective view showing the deformable member 141 deformed due to the first load L1. Due to the first load L1, the movable-side mounting member 143 moves rearward relative to the fixed-side mounting member 142 of the vehicle, thereby causing the deformable member 141 to deform in a V-shape. This deformation of the deformable member 141 absorbs the impact based on the first load L1. Furthermore, the rearward end of the restraining member 144 functions as a first restraining mechanism 145, which is positioned at a first distance D1 (refer to...). Figure 4 The movable side mounted member 143 is restricted from moving relative to the limiting member 144 when subjected to the first load L1, and the deformation of the deformable member 141 is prevented to restrict the movement of the movable member 120 toward the rear of the vehicle.

[0038] Figure 7 This is a perspective view showing the deformable member 141 deformed due to the second load L2. Due to the second load L2, the movable-side mounting member 143 moves forward relative to the fixed-side mounting member 142 of the vehicle, thereby deforming the deformable member 141 in a V-shape. This deformation of the deformable member 141 absorbs the impact based on the second load L2. Furthermore, the end of the restraining member 144 on the vehicle's front side functions as a second restraining mechanism 146, which is positioned at a second distance D1 (refer to...). Figure 4 The movable side mounting member 143 is restricted from moving relative to the limiting member 144 when subjected to the second load L2, and the deformation of the deformable member 141 is prevented to restrict the movement of the movable member 120 toward the front of the vehicle.

[0039] Furthermore, the present invention is not limited to the embodiments described above. For example, the structural components described in this specification can be combined in any way. In addition, other embodiments implemented by removing some of the structural components can also be considered as embodiments of the present invention. Furthermore, modifications that can be conceived by those skilled in the art without departing from the spirit of the present invention, i.e., the intent of the textual expression of the technical solution, are also included in the present invention.

[0040] Figure 8 This is a perspective view showing another example 1 of the impact absorption mechanism 140. As shown in the figure, the limiting member 144 of the impact absorption mechanism 140 can also structurally reinforce the lower end of the deformable member 141, thereby limiting the movement of the movable member 120 to the rear or front of the vehicle by preventing the deformation of the deformable member 141 caused by the first load L1 or the second load L2 in a predetermined shape.

[0041] Furthermore, the portion of the deformable member 141 where the fixed-side mounting member 142 is installed and the portion where the movable-side mounting member 143 is installed may not have a through cut along the thickness direction, but instead have a groove extending vertically and a thin-walled portion 152. In this case, the impact is absorbed by the fracture of the thin-walled portion 152 due to the first load L1 or the second load L2 and the deformation of the deformable member 141.

[0042] Figure 9 This is a perspective view of another example 2 of the impact absorption mechanism 140. Figure 10 This is a top view of another example 2 of the impact absorption mechanism 140, shown in partial perspective. As shown in the figure above, the impact absorption mechanism 140 may also be a mechanism that absorbs impacts by having a first component 161 fixed to the movable component 120 and a second component 162 fixed to a reciprocating component of the drive device 130, and by having the first component 161 and the second component 162 move relative to each other in the longitudinal direction of the vehicle. In another example 2, the second component 162 has elongated holes extending in the longitudinal direction of the vehicle and penetrating in the vertical direction, namely a first deformation hole 171 and a second deformation hole 172. In addition, the second component 162 has a cylindrical fixing hole 173, which is disposed between the first deformation hole 171 and the second deformation hole 172 and communicates with the first deformation hole 171 and the second deformation hole 172. The first component 161 includes: a cylindrical insertion portion 163 with a diameter at least larger than the width W1 of the first deformable hole 171 and the width W2 of the second deformable hole 172, and capable of being inserted into the fixing hole 173; and a guide body 164 that guides the second component 162 in a state of clamping the flat plate portion.

[0043] According to the impact absorption mechanism 140 of Example 2, the first component 161 mounted on the movable component 120 moves rearward relative to the second component 162 mounted on the nut component 133 of the drive unit 130 due to the first load L1. Due to this movement, the first deformation hole 171 deforms by widening the insertion portion 163. The deformation of the first deformation hole 171 absorbs the impact based on the first load L1. Furthermore, the rearward end of the first deformation hole 171 functions as a first limiting mechanism 145, which limits the movement of the first component 161 relative to the second component 162 when subjected to the first load L1 by a predetermined distance.

[0044] Furthermore, the first component 161, mounted on the movable component 120, moves forward relative to the second component 162, mounted on the nut component 133 of the drive unit 130, due to the second load L2. As a result of this movement, the second deformable hole 172 deforms by widening its width due to the insertion portion 163. This deformation of the second deformable hole 172 absorbs the impact based on the second load L2. Additionally, the vehicle-front end of the second deformable hole 172 functions as a second limiting mechanism 146, which restricts the movement of the first component 161 relative to the second component 162 under the second load L2 by a predetermined distance.

[0045] In addition, the width W1 of the first deformable hole 171 is narrower than the width W2 of the second deformable hole 172, so the amount of impact absorbed by the relative movement of the first component 161 and the second component 162 based on the first load L1 is greater than the amount of impact absorbed by the relative movement of the first component 161 and the second component 162 based on the second load L2.

[0046] Figure 11 This is a perspective view showing another example 3 of the impact absorption mechanism 140. As shown in this figure, in another example 3, the impact absorption mechanism 140 also absorbs impacts by the relative movement of the first component 161 and the second component 162 along the longitudinal direction of the vehicle. In another example 3, the second component 162 is a plate-shaped component extending along the longitudinal direction of the vehicle, and has a first inclined plane 181 and a second inclined plane 182 that are respectively inclined upward from the center portion in the longitudinal direction toward both ends. The first component 161 is a component that can clamp the second component 162 from the vertical direction and is pressed into the middle portion of the second component 162.

[0047] According to the impact absorption mechanism 140 of Example 3, due to the first load L1, the first component 161 mounted on the movable component 120 moves rearward relative to the second component 162 mounted on the nut component 133 of the drive device 130. Due to this movement, the first component 161 deforms by extending the first tilt 181 in a vertically spaced manner. The deformation of the first component 161 absorbs the impact based on the first load L1. Furthermore, a first limiting mechanism 145 is provided at the rearward end of the first tilt 181 to limit the movement of the first component 161 relative to the second component 162 when subjected to the first load L1 by a predetermined distance.

[0048] Furthermore, the first component 161, mounted on the movable component 120, moves forward relative to the second component 162, mounted on the nut component 133 of the drive unit 130, due to the second load L2. As a result of this movement, the first component 161 deforms by extending its vertical spacing using the second tilt 182. The deformation of the first component 161 absorbs the impact based on the second load L2. Additionally, a second limiting mechanism 146 is provided at the vehicle-front end of the second tilt 182 to limit the movement of the first component 161 relative to the second component 162 when subjected to the second load L2 by a predetermined distance.

[0049] In addition, the slope of the first inclination 181 is steeper than that of the second inclination 182, so the amount of shock absorbed by the relative movement of the first component 161 and the second component 162 based on the first load L1 is greater than the amount of shock absorbed by the relative movement of the first component 161 and the second component 162 based on the second load L2.

[0050] A first embodiment of the steering device 100 is an electric steering device 100 for maintaining the operating member 200 in a position that can be moved between a first position and a second position that is further forward of the vehicle than the first position. It includes: a fixed member 110 mounted on the vehicle body; a movable member 120 that supports the operating member 200 and is mounted on the fixed member 110 in a manner that allows it to move in the longitudinal direction of the vehicle; a drive device 130 that moves the movable member 120 in the longitudinal direction and fixes the operating member 200 in the first and second positions; and a shock absorption mechanism 140 that connects and clamps the movable member 120 and the drive device 130 between them, and deforms due to the first load L1 when a first load L1 is applied to the movable member 120 from the front to the rear of the vehicle, allowing the movable member 120 to move toward the rear of the vehicle.

[0051] According to the steering device 100 of the first embodiment, the impact absorption mechanism 140 absorbs the impact caused by the first load L1 on the movable part 120 due to the initial collision of the vehicle equipped with the steering device 100, and allows the movable part 120 to move rearward of the vehicle. That is, conventionally, if a collision occurs while the operating part 200 is housed in the dashboard, the space for dashboard deformation cannot be sufficiently ensured because there is a column shaft 210 holding the operating part 200 near the dashboard on the passenger side, and the initial collision cannot be absorbed by the steering device 100. However, according to the steering device 100 of the first embodiment, by allowing the movable part 120 to move rearward of the vehicle, the impact caused by the initial collision can be absorbed by the impact absorption mechanism 140.

[0052] The steering device 100 of the second embodiment includes the first embodiment, wherein the shock absorption mechanism 140 deforms due to the second load L2 applied to the movable member 120 from the rear of the vehicle toward the front, and allows the movable member 120 to move forward of the vehicle.

[0053] According to the steering device 100 of the second embodiment, an impact absorption mechanism 140 is used to absorb the first load L1 applied to the movable member 120 in the first collision and to absorb the second load L2 applied to the movable member 120 in the second collision.

[0054] The steering device 100 of the third embodiment includes the first embodiment or the second embodiment, and the shock absorption mechanism 140 has a portion fixed to the movable member 120 and another portion fixed to the deformable member 141 of the drive device 130.

[0055] The steering device 100 of the fourth embodiment includes any one of the first to third embodiments, and the shock absorption mechanism 140 includes a first limiting mechanism 145, which prevents the deformation of the deformable member 141 when subjected to a first load L1 and limits the movement of the movable member to the rear of the vehicle by a first distance.

[0056] According to the steering device 100 of the fourth embodiment, it is possible to prevent the operating component 200 from flying toward the driver due to the initial collision.

[0057] The steering device 100 of the fifth embodiment includes either the first embodiment or the second embodiment. The shock absorption mechanism 140 has a first component 161 fixed to the movable component 120 and a second component 162 fixed to the drive device 130. The shock is absorbed by the relative movement of the first component 161 and the second component 162 in the front-back direction.

[0058] According to the fifth embodiment of the steering device 100, the impact of the initial collision can be absorbed at least by friction between the first component 161 and the second component 162, and by deformation of at least one of the first component 161 and the second component 162.

[0059] The steering device 100 of the sixth embodiment includes a fifth embodiment having the second embodiment, wherein the amount of shock absorbed by the relative movement of the first component 161 and the second component 162 based on the first load L1 is greater than the amount of shock absorbed by the relative movement of the first component 161 and the second component 162 based on the second load L2.

[0060] The steering device 100 of the seventh embodiment includes the sixth embodiment, wherein one of the first component 161 and the second component 162 has an elongated hole extending in the front-rear direction, and the other of the first component 161 and the second component 162 has an insertion portion 163 that passes through the elongated hole. The width W1 of the elongated hole through which the insertion portion 163 passes by using the first load L1 is narrower than the width W2 of the portion of the elongated hole through which the insertion portion 163 passes by using the second load L2.

[0061] According to the sixth and seventh embodiments, the steering device 100 can appropriately cope with the impact received by the steering device 100 in the first collision and the impact received by the steering device 100 in the second collision.

[0062] The steering device 100 of the eighth embodiment includes the fifth embodiment, wherein the shock absorption mechanism 140 has a deformable member 141, a portion of which is fixed to a first member 161 and another portion is fixed to a second member 162, and the deformable member 141 absorbs the shock by at least a portion breaking due to a first load L1.

[0063] According to the steering device 100 of the eighth embodiment, it is able to strongly absorb impact through the breakage of components.

[0064] [Potential for industrial applications]

[0065] This invention can be used to provide a device for steering vehicles such as cars, trucks, buses, construction machinery, and agricultural machinery in the form of electric steering.

[0066] Explanation of reference numerals in the attached figures

[0067] 100…Steering device, 104…Fracturing component, 110…Fixing component, 111…Fixing track, 120…Moving component, 121…Moving track, 130…Drive device, 131…Feed screw, 132…Bracket, 133…Nut component, 134…Rotary drive device, 140…Impact absorption mechanism, 141…Deformable component, 142…Fixing side mounting component, 143…Moving side mounting component, 144…Restricting component, 145…First restricting mechanism, 1 46…Second limiting mechanism, 147…elongated hole, 148…through section, 149…clamping section, 151…cut section, 152…thin-walled section, 161…first component, 162…second component, 163…insertion section, 164…guide body, 171…first deformable hole, 172…second deformable hole, 173…fixed hole, 181…first tilt, 182…second tilt, 200…operating component, 210…column shaft, 220…sensor box, 230…reaction force device.

Claims

1. A steering device for electrically steering the operating component in a manner that allows it to move between a position of the operating component operable by a driver, i.e., a first position, and a second position further forward of the vehicle than the first position, comprising: Fixed components that are mounted on the vehicle body; A movable part that supports the aforementioned operating part and is mounted on the aforementioned fixed part in a manner that allows it to move along the longitudinal direction of the vehicle. A drive device that moves the movable member relative to the fixed member in a front-to-back direction and fixes the operating member at the first position and the second position; and The impact-absorbing mechanism is connected to and clamped between the movable part and the drive device. When a first load is applied to the movable part from the front to the rear of the vehicle, it deforms due to the first load and allows the movable part to move to the rear of the vehicle.

2. The steering device according to claim 1, wherein, The above-mentioned impact absorption mechanism When a second load is applied to the movable part from the rear to the front of the vehicle, the movable part deforms due to the second load and allows it to move forward of the vehicle.

3. The steering device according to claim 1 or 2, wherein, The aforementioned impact absorption mechanism possesses: One part is fixed to the aforementioned movable part, and the other part is fixed to the aforementioned deformable part of the drive device.

4. The steering device according to claim 3, wherein, The aforementioned impact absorption mechanism possesses: A first limiting mechanism that prevents the deformation of the deformable member when subjected to the first load and restricts the movement of the movable member toward the rear of the vehicle by a first distance.

5. The steering device according to claim 1 or 2, wherein, The aforementioned impact absorption mechanism possesses: The first component, which is fixed to the aforementioned movable component; and The second component is fixed to the aforementioned drive device. The impact is absorbed by the relative movement of the first and second components in the front-to-back direction.

6. The steering device according to claim 5 of claim 2, wherein, The amount of shock absorbed by the relative movement of the first component and the second component based on the first load is greater than the amount of shock absorbed by the relative movement of the first component and the second component based on the second load.

7. The steering device according to claim 6, wherein, One of the aforementioned first component and the aforementioned second component has an elongated hole extending in the front-rear direction. The first component and another of the second components described above have an insertion portion that penetrates the elongated hole. The width of the elongated hole through which the insertion part passes due to the first load is narrower than the width of the portion of the elongated hole through which the insertion part passes due to the second load.

8. The steering device according to claim 5, wherein, The aforementioned impact absorption mechanism possesses: One part is fixed to the first component mentioned above, and the other part is fixed to the deformable component of the second component mentioned above. The above-mentioned deformable components The shock is absorbed by at least a portion breaking due to the aforementioned first load.

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