Steering input device and mobility including the same

Abstract

According to the present embodiments, a steering input device may be provided, which includes a steering shaft, a rotor having a spring coupled to the steering shaft and having a circumferentially spaced apart space between both ends thereof, a first support member coupled to the rotor, positioned in the spaced apart space, and supported in the circumferential direction by both ends of the spring, a housing to which the steering shaft is rotatably coupled and which accommodates the rotor, a second support member positioned in the spaced apart space and supported in the circumferential direction by the housing, and an elastic member that supports the second support member and brings it into circumferential contact with both ends of the spring, and a mobility device including the same.

Description

[Technical Field]

[0001] The present embodiments relate to a steering input device and a mobility device including the same. [Background technology]

[0002] Recently, interest in compact mobility vehicles has been increasing. Compact mobility vehicles can be used as urban mobility vehicles suitable for small passenger numbers and short-distance travel. Such compact mobility vehicles are designed with a lightweight body and a high center of gravity. To compensate for the reduced driving safety caused by the lightweight body and high center of gravity and to provide drivers with a dynamic driving experience, compact mobility vehicles can be equipped with a lean function that tilts the body depending on the direction of travel.

[0003] The compact mobility vehicle includes a steering input device to which the driver's steering wheel operation is input, a steering actuator that generates a steering force to steer the wheels in accordance with the driver's steering wheel operation, and a lean actuator for performing the lean function described above.

[0004] Considering the small size of the vehicle body and the applications of small mobility vehicles, various devices equipped in the mobility vehicles must be small in size. Summary of the Invention [Problem to be solved by the invention]

[0005] The present embodiments have been devised in light of the above-mentioned background, and relate to a steering input device that has a compact structure and can improve the steering feel of a driver, and a mobility including the same. [Means for solving the problem]

[0006] According to the present embodiments, a steering input device may be provided, including a steering shaft, a rotor coupled to the steering shaft and having a spring with a circumferentially spaced apart space formed between both ends thereof, a first support member coupled to the rotor, positioned in the spaced apart space, and supported in the circumferential direction by both ends of the spring, a housing to which the steering shaft is rotatably coupled and which accommodates the rotor, a second support member positioned in the spaced apart space and supported in the circumferential direction by the housing, and an elastic member which supports the second support member and brings it into close contact with both ends of the spring in the circumferential direction.

[0007] Furthermore, according to the present embodiments, a mobility device may be provided that includes a steering input device including a steering shaft, a rotor coupled to the steering shaft and having a spring with a circumferentially spaced apart space formed between both ends thereof, a first support member coupled to the rotor, positioned in the spaced apart space, and supported in the circumferential direction by both ends of the spring, a housing to which the steering shaft is rotatably coupled and that accommodates the rotor, a second support member positioned in the spaced apart space and supported in the circumferential direction by the housing, and an elastic member that supports the second support member and brings it into close contact with both ends of the spring in the circumferential direction. [Effects of the Invention]

[0008] According to the present embodiments, a steering input device having a compact structure and capable of improving the steering feel of the driver, and a mobility including the same, can be provided. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is an exploded perspective view of a steering input device according to the present embodiment. [Figure 2] FIG. 2 is a cross-sectional view of the steering input device according to the present embodiment. [Figure 3] FIG. 3 is an exploded perspective view of a part of the steering input device according to the present embodiment. [Figure 4] FIG. 4 is a front view of a part of the steering input device according to the present embodiment. [Figure 5] FIG. 5 is a front view of a part of the steering input device according to the present embodiment. [Figure 6] FIG. 6 is a diagram for explaining the operation of the steering input device according to the present embodiment. [Figure 7] FIG. 7 is an exploded perspective view of a part of the steering input device according to the present embodiment. [Figure 8] FIG. 8 is a plan view of a part of the steering input device according to the present embodiment. [Figure 9] 9a and 9b are cross-sectional views of a part of the steering input device according to the present embodiment. [Figure 10] 10a to 10c are diagrams for explaining mobility according to the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] Some embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. When adding reference numerals to components in each drawing, the same components may have the same reference numerals as much as possible, even if they appear in different drawings. Furthermore, when describing the embodiments, if it is determined that a detailed description of related known structures or functions may obscure the gist of the present technical concept, such a detailed description may be omitted. When using terms such as "include," "have," and "be made" in this specification, other terms may be added unless "only" is used. When a component is expressed in the singular, it may also include a plural unless otherwise expressly stated.

[0011] Furthermore, in describing components of the present disclosure, terms such as first, second, A, B, (a), (b), etc. are used only to distinguish the component from other components, and do not limit the nature, order, sequence, or number of the corresponding component.

[0012] In describing the positional relationship of components, when two or more components are described as being "coupled," "coupled," or "connected," it should be understood that the two or more components may be directly "coupled," "coupled," or "connected," but that the two or more components may also be "coupled," "coupled," or "connected" through an additional "intervening" component. Here, the additional component may be included in one or more of the two or more components that are "coupled," "coupled," or "connected" to each other.

[0013] In describing the temporal flow relationship associated with components, operating methods, manufacturing methods, etc., when the temporal or flow sequence relationship is described using, for example, "after," "following," "next," or "before," it may also include cases where the sequence is not consecutive, unless "immediately" or "directly" is used.

[0014] On the other hand, when a numerical value or its corresponding information (e.g., level, etc.) for a component is mentioned, the numerical value or its corresponding information may be interpreted as including an error range that may occur due to various factors (e.g., process factors, internal or external impact, noise, etc.) even if there is no other explicit description.

[0015] FIG. 1 is an exploded perspective view of a steering input device according to the present embodiments, FIG. 2 is a cross-sectional view of the steering input device according to the present embodiments, FIG. 3 is an exploded perspective view of a portion of the steering input device according to the present embodiments, FIG. 4 is a front view of a portion of the steering input device according to the present embodiments, FIG. 5 is a front view of a portion of the steering input device according to the present embodiments, FIG. 6 is a diagram for explaining the operation of the steering input device according to the present embodiments, FIG. 7 is an exploded perspective view of a portion of the steering input device according to the present embodiments, and FIG. 8 is a plan view of a portion of the steering input device according to the present embodiments.

[0016] According to the present embodiments, a steering input device 100 may be provided, including a steering shaft 110, a rotor 120 coupled to the steering shaft 110 and having a spring 123 with a circumferentially spaced apart space 123c formed between both ends thereof, a first support member 130 coupled to the rotor 120 and positioned in the spaced apart space 123c to be supported in the circumferential direction by both ends of the spring 123, a housing 150 to which the steering shaft 110 is rotatably coupled and which accommodates the rotor 120, a second support member 140 positioned in the spaced apart space 123c to be supported in the circumferential direction by the housing 150, and an elastic member 160 which supports the second support member 140 and brings it into close contact with both ends of the spring 123 in the circumferential direction.

[0017] Furthermore, according to the present embodiments, mobility including the steering input device 100 can be provided.

[0018] First, the lean mobility function according to the present embodiment will be described in detail with reference to FIGS. 10a to 10c.

[0019] FIG. 10a shows a state in which the lean function of the mobility according to the present embodiment is not performed, which may be, for example, a stopped, straight forward, or reversed state.

[0020] Figures 10b and 10c show the state in which the lean function of the mobility according to the present embodiments is being performed, with Figure 10b showing the state in which the vehicle body tilts due to the lean function when turning, and Figure 10c showing the state in which the height difference between the left and right wheels is offset by the lean function on uneven terrain.

[0021] In other words, the lean function can be used to improve driving safety when cornering, provide the driver with a dynamic driving environment, and also provide a suspension function that absorbs ground irregularities.

[0022] The mobility device according to the present embodiment includes a lean bar 1000, both ends of which are connected to the left and right wheels to perform a lean function. Both ends of the lean bar 1000 are connected to the left and right wheels via a linkage structure.

[0023] The mobility according to the present embodiment includes a lean actuator, and the lean function is performed by rotating a lean bar by the lean actuator.

[0024] The mobility according to the present embodiments includes a steering input device 100 according to the present embodiments. The steering input device 100 according to the present embodiments is provided in the mobility according to the present embodiments and receives a steering input from the driver.

[0025] According to one embodiment, the mobility according to the present embodiments may further include a steering angle sensor for sensing the rotation angle of the steering shaft, a steering actuator for generating a steering force for steering the wheels, and an electronic control device for receiving rotation angle information of the steering shaft from the steering angle sensor and controlling the steering actuator.

[0026] A steering wheel is connected to the steering shaft, and the driver can operate the steering input device 100 according to the present embodiments by operating the steering wheel. The steering angle sensor senses the rotation angle of the steering shaft and transmits it to the electronic control unit.

[0027] The electronic control unit can control the steering actuator based on the rotation angle information of the steering shaft received from the steering angle sensor and other information, such as the vehicle speed and the driver's steering torque.

[0028] Under the control of the electronic control unit, the steering actuator generates a steering force for steering the wheels, thereby performing steering of the mobility according to the present embodiment.

[0029] According to one embodiment, the steering actuator can steer the front wheels. Both front wheels of the mobility vehicle according to this embodiment can be connected to a lean bar to perform a lean function by the lean actuator, and can also be steered by the steering actuator.

[0030] 1 to 4, the steering input device 100 according to the present embodiment includes a steering shaft 110, a rotor 120, a first support member 130, a housing 150, a second support member 140, and an elastic member 160.

[0031] The steering shaft 110 is connected to a steering wheel and is rotated by the driver operating the steering wheel. The rotor 120 is connected to the steering shaft 110 and rotates together with the steering shaft 110. The steering shaft 110 is rotatably connected to a housing 150. The steering shaft 110 may be connected to the housing 150 by a bearing.

[0032] The housing 150 accommodates the rotor 120. The housing 150 may include a hollow main housing 151 accommodating the rotor 120, a cover housing 153 to which one side of the steering shaft 110 is coupled and which is coupled to the main housing 151, and a sensor housing 152 to which the other side of the steering shaft 110 is coupled and which accommodates a sensor 212 (described below).

[0033] The steering input device 100 according to the present embodiments can be installed while the main housing 151 is coupled to the vehicle body.

[0034] The rotor 120 is provided with a spring 123. As the steering shaft 110 rotates, the torque generated by the spring 123 twisting is provided to the steering shaft 110 as a reaction torque, improving the driver's steering feel. In addition, the torque provided by the spring 123 allows the rotated steering wheel to return to a neutral position.

[0035] A space 123c is formed in the circumferential direction between one end (see reference numeral 123a) and the other end (see reference numeral 123b) of the spring 123 (see FIG. 4).

[0036] A first support member 130 and a second support member 140 are positioned in a space 123c formed between both ends of the spring 123 (see FIG. 5).

[0037] The first support member 130 is positioned in the space 123c and supported in the circumferential direction by both ends of the spring 123, and the second support member 140 is positioned in the space 123c and closely contacts both ends of the spring 123 by the elastic member 160.

[0038] That is, the direction in which the first supporting member 130 and the second supporting member 140 are supported by one end of the spring 123 and the direction in which they are supported by the other end of the spring 123 are the same.

[0039] In addition, since the steering feel provided to the driver must be the same regardless of the direction of rotation of the steering wheel, both ends of the spring 123, the first support member 130 and the second support member 140 are provided symmetrically.

[0040] As shown in the drawings, the first support member 130 has a load shape parallel to the steering shaft 110 and can support both ends of the spring 123 .

[0041] The second support member 140 may include a first support member 141 that is in close contact with one end of the spring 123 and a second support member 142 that is in close contact with the other end of the spring 123, as will be described in detail below.

[0042] The first support 141 and the second support 142 are brought into close contact with one end and the other end of the spring 123 by the elastic member 160, respectively.

[0043] The first support member 130 is coupled to the rotor 120 and rotates together with the steering shaft 110, and the second support member 140 is supported in the circumferential direction by the housing 150.

[0044] That is, when the steering shaft 110 is rotated, the first support member 130 is rotated, but the second support member 140 is not rotated.

[0045] As the steering shaft 110 rotates, the first support member 130 is supported by one end or the other end of the spring 123 and rotates, while the other end or one end of the spring 123 is supported by the second support member 140 and fixed.

[0046] Therefore, the spring 123 is twisted, and a reaction torque is applied to the steering shaft 110. The mechanism for providing the reaction torque by the torsion of the spring 123 will be described in detail later.

[0047] Referring to FIG. 2 in detail, the steering input device 100 according to the present embodiment may further include a damper 211 coupled to the steering shaft 110 and the housing 150 .

[0048] The damper 211 may be coupled to an end of the steering shaft 110 and coupled to the sensor housing 152. The damper 211 provides rotational damping to the steering shaft 110, thereby improving steering feel.

[0049] Also, according to an embodiment, the steering input device 100 according to the present embodiments may further include a sensor 212 for sensing the rotation angle of the steering shaft 110 .

[0050] The sensor 212 can sense the rotation angle of the steering shaft 110 and transmit the rotation angle information to an electronic control device that controls a steering actuator that generates a steering force for steering the wheels.

[0051] That is, the steering shaft 110 of the steering input device 100 according to the present embodiments may not be mechanically connected to the wheels to be steered. The electronic control device can control the steering actuator based on the rotation angle information sensed by the sensor 212 and information sensed by other sensors, such as the vehicle speed and the driver's steering torque.

[0052] Referring to FIG. 3 in detail, according to an embodiment, the rotor 120 may include a first rotor 121 to which a first support member 130 is coupled and a second rotor 122 to which a spring 123 is seated.

[0053] According to one embodiment, the first rotor 121 may be coupled to the steering shaft 110 through serrations, so that the rotor 120 and the steering shaft 110 are fixed in the circumferential direction and can rotate together.

[0054] According to one embodiment, a first stopper 121a is formed on the first rotor 121, and a second stopper 153a that can be supported in the circumferential direction by the first stopper 121a is formed on the housing 150. The rotation of the steering shaft 110 is stopped by the first stopper 121a being supported by the second stopper 153a.

[0055] According to an embodiment, the first stopper 121a may be formed on one axial side of the first rotor 121, and the first support member 130 may be coupled to the other axial side of the first rotor 121.

[0056] The second stopper 153a is formed on the inner surface of the sensor housing 152, and the first stopper 121a and the second stopper 153a are formed on the opposing surfaces of the first rotor 121 and the sensor housing 152, respectively. The first support member 130 may be coupled to the other axial side of the first rotor 121, i.e., the side opposite to the side on which the first stopper 121a is formed.

[0057] According to one embodiment, the spring 123 may be seated on an outer surface of the second rotor 122. The second rotor 122 may be coupled to the other axial side of the first rotor 121, i.e., the surface to which the first support member 130 is coupled.

[0058] Therefore, the first rotor 121 and the second rotor 122 rotate together. The spring 123 is seated on the outer surface of the second rotor 122, and as will be described later, both ends are bent to protrude radially from the outer surface of the second rotor 122.

[0059] According to one embodiment, the second rotor 122 may include a first bushing 221 which is coupled to the first rotor 121 and has a first protrusion 221a formed on its outer surface, the first protrusion 221a being supported by the spring 123 on one axial side, and a second bushing 222 which is coupled to the first bushing 221 and has a second protrusion 222a formed on its outer surface, the second protrusion 222a being supported by the spring 123 on the other axial side.

[0060] The first bushing 221 and the second bushing 222 are axially coupled, and the spring 123 is positioned between the first protrusion 221a and the second protrusion 222a on the outer surfaces of the first bushing 221 and the second bushing 222 (see FIG. 2).

[0061] 4 and 5, according to one embodiment, one end and the other end of the spring 123 are bent and extended radially to form a space 123c. The ends of the spring 123 are spaced apart in the axial direction and form a space 123c in the circumferential direction.

[0062] The first support member 130 is located in the space 123c and is supported on both ends of the spring 123, and the second support member 140 is located in the space 123c and is closely attached to both ends of the spring 123 by the elastic members 160. That is, one end and the other end of the spring 123 are supported by the first support member 130 and the second support member 140, which are located on opposite sides of each other in the space 123c.

[0063] When the rotor 120 rotates in one circumferential direction together with the steering shaft 110, the first support member 130 is supported by one end of the spring 123 and rotates.

[0064] However, the other end of the spring 123 is supported by the second support member 140, which is supported and fixed in the circumferential direction of the housing 150, and is fixed without being able to rotate, so that torsion occurs in the spring 123, and a reaction torque is applied to the steering shaft 110.

[0065] Conversely, when the rotor 120 rotates in the other circumferential direction together with the steering shaft 110, the first support member 130 rotates while being supported by the other end of the spring 123. Since one end of the spring 123 is fixed and cannot rotate but is supported by the second end, the spring 123 is twisted and a reaction torque is applied to the steering shaft 110.

[0066] If both ends of the spring 123 cannot be supported by the first support member 130 and the second support member 140 simultaneously, the steering feeling of the driver will be reduced.

[0067] In other words, if both ends of the spring 123 are supported only by the first support member 130 when the steering wheel is in a neutral state and there is a gap between both ends of the spring 123 and both sides of the second support member 140, when the steering shaft 110 rotates in the circumferential direction, torsion of the spring 123 is not generated and no reaction torque is provided until the ends of the spring 123 are supported by the second support member 140, resulting in a deterioration in steering feel.

[0068] Alternatively, if both ends of the spring 123 are supported only by the second support member 140 when the steering wheel is in a neutral position and there is a gap between both ends of the spring 123 and both sides of the first support member 130, the steering shaft 110 will rotate freely until the end of the spring 123 is supported by the first support member 130, thereby reducing the steering feel.

[0069] Alternatively, if both ends of the spring 123 cannot be supported by either the first support member 130 or the second support member 140 when the steering wheel is in a neutral position, the driver's steering feeling will naturally be reduced.

[0070] Therefore, in order to provide the driver with a good steering feel, both ends of the spring 123 need to be supported by the first support member 130 and the second support member 140 simultaneously.

[0071] 5 shows a state in which both ends of the spring 123 are simultaneously supported by the first support member 130 and the second support member 140 at the neutral position. FIG. 6 shows a state in which the steering shaft 110 is rotated counterclockwise in the drawing at the neutral position, with one end of the spring 123 being supported and fixed by the second support member 140 and the other end of the spring 123 being supported and rotated by the first support member 130.

[0072] As shown in FIG. 5, in the neutral state, both ends of the spring 123 are simultaneously supported by the first support member 130 and the second support member 140. Therefore, as shown in FIG. 6, when the steering shaft 110 is rotated, one end or the other of the spring 123 is not moved by the second support member 140 even if the first support member 130 is rotated.

[0073] Therefore, as soon as the driver rotates the steering wheel in the neutral position, the spring 123 twists and provides a reaction torque.

[0074] If there is a gap between the end of the spring 123 and the second support member 140, the twist of the spring 123 will not occur before the driver rotates the steering wheel by that distance, resulting in a reduced steering feel. Through this structure, the steering input device 100 according to the present embodiments can provide the driver with a high steering feel.

[0075] According to an embodiment, the second support member 140 may include a first support 141 that is in close contact with one end of the spring 123 and a second support 142 that is in close contact with the other end of the spring 123 .

[0076] The first support member 130 is formed as a single body and is supported simultaneously on both ends of the spring 123, and the second support member 140 is separated into a first support member 141 and a second support member 142 and can be closely attached to one end and the other end of the spring 123 by an elastic member 160, respectively.

[0077] That is, one end of the spring 123 can be supported by the first support member 130 and the first support body 141 simultaneously, and the other end of the spring 123 can be supported by the first support member 130 and the second support body 142 simultaneously.

[0078] 2 and 7, according to one embodiment, the housing 150 may be formed with slits 154 into which the first support 141 and the second support 142 are inserted so as to be axially movable.

[0079] The first support 141 and the second support 142 inserted into the slit 154 are movable in the axial direction along the slit 154, but are tightly attached to one end and the other end of the spring 123 by the elastic member 160, respectively.

[0080] According to one embodiment, the elastic member 160 may be provided between the first support 141 and the second support 142. The elastic member 160 provides an axially outward elastic force between the first support 141 and the second support 142, thereby causing the first support 141 and the second support 142 to be in close contact with one end and the other end of the spring 123, respectively.

[0081] According to one embodiment, the elastic member 160 may be a coil spring. The first support 141 and the second support 142 may have protrusions formed thereon to be inserted into the coil spring, and both ends of the coil spring may be sandwiched between the protrusions of the first support 141 and the second support 142 to be coupled.

[0082] 8, according to an embodiment, the first support 141 and the second support 142 may be formed to have a width that narrows along the axial direction. The first support 141 and the second support 142 may have an inclined surface formed on both sides thereof, and may be formed to have a width that narrows along the axial direction.

[0083] The first support 141 and the second support 142 may be formed so that they face outward from the inside in the axial direction, i.e., the width of the first support 141 and the second support 142 may become narrower as they move away from each other in the axial direction. Therefore, the elastic force of the elastic member 160 is applied outward in the axial direction, so that the first support 141 and the second support 142 may naturally come into close contact with one end and the other end of the spring 123.

[0084] According to an embodiment, the first support 141 and the second support 142 that are in close contact with one end and the other end of the spring 123 may be fixed to the housing 150 by a fixing member 902 .

[0085] That is, the first support 141 and the second support 142 are tightly attached to both ends of the spring 123 by the elastic member 160, and one end and the other end of the spring 123 are simultaneously supported by the first support member 130 and the second support member 140, and then the first support 141 and the second support 142 inserted into the slit 154 by the fixing member 902 can be fixed to the housing 150.

[0086] 9A and 9B, an example of a method for closely contacting the first support 141 and the second support 142 with both ends of the spring 123 in the steering input device 100 according to the present embodiment will be described in detail.

[0087] First, in the initial assembled state, the elastic member 160 is compressed by the jig 901 coupled to the first support 141 and the second support 142. Then, when the jig 901 is removed, the first support 141 and the second support 142 are moved axially outward by the elastic force of the elastic member 160 and are brought into close contact with one end and the other end of the spring 123, respectively.

[0088] Through this process, both ends of the spring 123 can be easily supported simultaneously by the first support member 130 and the second support member 140. Then, the first support member 141 and the second support member 142 can be fixed to the housing 150 by the fixing member 902.

[0089] According to one embodiment, after the first support 141 and the second support 142 are fixed to the housing 150 by the fixing member 902, the elastic member 160 can be removed.

[0090] According to a steering input device having such a shape and a mobility including the same, a steering input device and a mobility including the same can be provided that have a compact structure and can improve the steering feel of the driver.

[0091] The above description merely exemplifies the technical concept of the present disclosure, and various modifications and variations may be made by a person skilled in the art without departing from the essential characteristics of the technical concept. Furthermore, the present examples are intended to illustrate, rather than limit, the technical concept of the present disclosure, and therefore the scope of the technical concept is not limited by these examples. The scope of protection of the present disclosure should be interpreted by the following claims, and all technical concepts within the scope equivalent thereto should be interpreted as being included in the scope of rights of the present disclosure.

Claims

1. A steering shaft; a rotor coupled to the steering shaft and including a spring having a circumferentially spaced apart space between both ends; a first support member coupled to the rotor, positioned in the space, and circumferentially supported by both ends of the spring; a housing to which the steering shaft is rotatably coupled and which accommodates the rotor; a second support member positioned in the separated space and supported in a circumferential direction by the housing; an elastic member that supports the second support member and brings the second support member into close contact with both ends of the spring in the circumferential direction; A steering input device comprising:

2. a damper coupled to the steering shaft and a housing; The steering input device according to claim 1 , further comprising:

3. a sensor for sensing a rotation angle of the steering shaft; The steering input device according to claim 1 , further comprising:

4. The rotor includes a first rotor to which the first support member is connected and a second rotor to which the spring is seated. The steering input device according to claim 1 , comprising:

5. the first rotor is coupled to the steering shaft and serrations; 5. The steering input device according to claim 4.

6. The first rotor is formed with a first stopper, and the housing is formed with a second stopper that can be supported in a circumferential direction with the first stopper.

5. The steering input device according to claim 4.

7. the first stopper is formed on one axial side of the first rotor, and the first support member is coupled to the other axial side of the first rotor; 7. The steering input device according to claim 6.

8. The spring is seated on the outer surface of the second rotor.

5. The steering input device according to claim 4.

9. The second rotor is a first bushing coupled to the first rotor and having a first protrusion formed on an outer surface thereof, the first protrusion being supported by the spring at one axial side thereof; and a second bushing coupled to the first bushing and having a second protrusion formed on an outer surface thereof, the second protrusion being supported by the spring at the other axial side; The steering input device according to claim 4 , further comprising:

10. One end and the other end of the spring are bent and extended in a radial direction, and the separation space is formed between the one end and the other end.

2. The steering input device according to claim 1.

11. The second support member is a first support body that is in close contact with one end of the spring; and a second support member that is in close contact with the other end of the spring; The steering input device according to claim 1 , comprising:

12. The housing is formed with slits into which the first support body and the second support body are inserted so as to be axially movable. The steering input device according to claim 11 .

13. The elastic member is provided between the first support and the second support. The steering input device according to claim 11 .

14. The elastic member is a coil spring. The steering input device according to claim 13 .

15. The first support and the second support are formed so that their widths become narrower along the axial direction. The steering input device according to claim 11 .

16. The first and second supports, which are in close contact with one end and the other end of the spring, are fixed to the housing by a fixing member. The steering input device according to claim 11 .

17. the first support and the second support are fixed to the housing by the fixing member, and then the elastic member is removed.

17. The steering input device according to claim 16.

18. The steering input device according to claim 1, Mobility, including

19. a steering angle sensor for sensing a rotation angle of the steering shaft; a steering actuator that generates a steering force for steering the wheels; an electronic control device that receives rotation angle information of the steering shaft from the steering angle sensor and controls the steering actuator; The mobility of claim 18 further comprising:

20. The steering actuator steers the front wheels.

20. Mobility according to claim 19.

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