Steering input device and mobility apparatus including same

Abstract

Provided according to the present embodiments are a steering input device and a mobility apparatus including same, the device comprising: a steering shaft; a rotor which is coupled to the steering shaft and has a spring having, between both ends thereof, a separation space formed in the circumferential direction; a first support member which is coupled to the rotor and positioned in the separation space and supports both ends of the spring in the circumferential direction; a housing to which the steering shaft is rotatably coupled and which accommodates the rotor therein; a second support member which is positioned in the separation space and supported in the circumferential direction by the housing; and an elastic member which supports the second support member to bring same into close contact with both ends of the spring in the circumferential direction.

Description

Steering input device and mobility including the same

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

[0002] Interest in small mobility vehicles has been growing recently. These vehicles can be utilized as urban mobility solutions, ideal for small passenger numbers and short-distance travel. These vehicles are designed with lightweight bodies and a high center of gravity. To compensate for the reduced driving stability caused by their lightweight bodies and high center of gravity, and to provide drivers with a more dynamic driving experience, these vehicles can be equipped with a lean function that tilts the vehicle body according to the direction of travel.

[0003] The small mobility includes a steering input device for inputting a driver's steering wheel operation, a steering actuator for generating steering force for steering the vehicle according to the driver's steering wheel operation, and a lean actuator for performing the aforementioned lean function.

[0004] Considering the small body and intended use of small mobility vehicles, small sizes of various devices equipped in the vehicles are required.

[0005] The present embodiments are conceived in the context of the foregoing, and relate to a steering input device having a compact structure and capable of improving a driver's steering feel, and to mobility including the same.

[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 having a circumferentially separated space between both ends, a first support member coupled to the rotor, positioned in the separated 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 circumferentially supported by the housing, and an elastic member supporting the second support member and bringing it into circumferential contact with both ends of the spring.

[0007] In addition, according to the present embodiments, a mobility can be provided that includes a steering input device including a steering shaft, a rotor coupled to the steering shaft and having a spring having a circumferentially separated space between both ends, a first support member coupled to the rotor, positioned in the separated 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 circumferentially supported 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.

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

[0009] Figure 1 is an exploded perspective view of a steering input device according to the present embodiments.

[0010] Fig. 2 is a cross-sectional view of a steering input device according to the present embodiments.

[0011] Figure 3 is an exploded perspective view of a part of a steering input device according to the present embodiments.

[0012] Fig. 4 is a front view of a part of a steering input device according to the present embodiments.

[0013] Fig. 5 is a front view of a part of a steering input device according to the present embodiments.

[0014] Figure 6 is a drawing for explaining the operation of the steering input device according to the present embodiments.

[0015] Fig. 7 is an exploded perspective view of a part of a steering input device according to the present embodiments.

[0016] Fig. 8 is a plan view of a part of a steering input device according to the present embodiments.

[0017] Figures 9a and 9b are cross-sectional views of a portion of a steering input device according to the present embodiments.

[0018] Figures 10a to 10c are drawings for explaining mobility according to the present embodiments.

[0019] Hereinafter, some embodiments of the present disclosure will be described in detail with reference to exemplary drawings. When adding reference numerals to components in each drawing, identical components may have the same numerals as much as possible even if they are shown in different drawings. In addition, when describing the present embodiments, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the technical idea of ​​the present invention, the detailed description may be omitted. When "includes," "has," "consists of," etc. are used in this specification, other parts may be added unless "only" is used. When a component is expressed in the singular, it may include a case in which the plural is included unless specifically stated otherwise.

[0020] Additionally, terms such as first, second, A, B, (a), (b), etc. may be used to describe components of the present disclosure. These terms are only intended to distinguish the components from other components, and the nature, order, sequence, or number of the components are not limited by the terms.

[0021] In a description of the positional relationship of components, when it is described that two or more components are "connected," "combined," or "connected," it should be understood that the two or more components may be directly "connected," "combined," or "connected," but that the two or more components may also be further "interposed" with another component to be "connected," "combined," or "connected." Here, the other component may be included in one or more of the two or more components that are "connected," "combined," or "connected" to each other.

[0022] In the description of the temporal flow relationship related to components, operation methods, or manufacturing methods, for example, when the temporal or flow relationship is described as “after”, “following”, “next to”, “before”, etc., it may also include cases where it is not continuous, unless “immediately” or “directly” is used.

[0023] Meanwhile, when numerical values ​​or corresponding information (e.g., levels, etc.) for components are mentioned, even without separate explicit description, the numerical values ​​or 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.).

[0024] 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 a steering input device according to the present embodiments, FIG. 3 is an exploded perspective view of a part of a steering input device according to the present embodiments, FIG. 4 is a front view of a part of a steering input device according to the present embodiments, FIG. 5 is a front view of a part of a steering input device according to the present embodiments, FIG. 6 is a drawing for explaining the operation of a steering input device according to the present embodiments, FIG. 7 is an exploded perspective view of a part of a steering input device according to the present embodiments, and FIG. 8 is a plan view of a part of a steering input device according to the present embodiments.

[0025] According to the present embodiments, a steering input device (100) may be provided, which includes a steering shaft (110), a rotor (120) coupled to the steering shaft (110) and having a spring (123) having a circumferentially separated space (123c) formed between both ends, a first support member (130) coupled to the rotor (120), positioned in the separated space (123c) and circumferentially supported 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 separated space (123c) and circumferentially supported by the housing (150), and an elastic member (160) that supports the second support member (140) and brings it into circumferential contact with both ends of the spring (123).

[0026] Additionally, according to the present embodiments, a mobility including a steering input device (100) can be provided.

[0027] First, the lean function of mobility according to the present embodiments will be examined with reference to FIGS. 10a to 10c.

[0028] FIG. 10a is a state in which the lean function of the mobility according to the present embodiments is not performed, and may be, for example, in a stopped, straight, or reverse state.

[0029] FIG. 10b and FIG. 10c illustrate a state in which the lean function of the mobility according to the present embodiments is performed. FIG. 10b illustrates a state in which the vehicle body tilts due to the lean function during turning, and FIG. 10c illustrates a state in which the height difference between the left and right wheels is offset due to the lean function on a step terrain.

[0030] That is, by utilizing the lean function, driving stability can be improved during cornering driving, while providing the driver with a dynamic driving environment, and a suspension function that absorbs ground differences can also be provided.

[0031] The mobility according to the present embodiments includes a lean bar (1000) whose ends are connected to the left and right wheels to perform a lean function. The ends of the lean bar (1000) are connected to the left and right wheels through a linkage structure.

[0032] The mobility according to the present embodiments includes a lean actuator, and a lean function is performed as a lean bar is rotated by the lean actuator.

[0033] 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 a driver.

[0034] According to one embodiment, the mobility according to the present embodiments may further include a steering angle sensor for sensing a rotation angle of a steering shaft, a steering actuator for generating a steering force for steering a wheel, and an electronic control device for receiving rotation angle information of the steering shaft from the steering angle sensor and controlling the steering actuator.

[0035] 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 device.

[0036] 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 vehicle speed and driver's steering torque.

[0037] Under the control of the electronic control device, the steering actuator generates steering force to steer the wheels, and steering of the mobility according to the present embodiments is performed.

[0038] In one embodiment, the steering actuator can steer the front wheels. The front wheels of the mobility according to the present embodiments can be connected to a lean bar so that the lean function can be performed by the lean actuator, and can also be steered by the steering actuator.

[0039] Next, referring to FIGS. 1 to 4, the steering input device (100) according to the present embodiments 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).

[0040] The steering shaft (110) is connected to the steering wheel and rotates by the driver's steering wheel operation. The rotor (120) is coupled to the steering shaft (110) and rotates together with the steering shaft (110). The steering shaft (110) is rotatably coupled to the housing (150). The steering shaft (110) may be coupled to the housing (150) by a bearing.

[0041] The housing (150) accommodates the rotor (120). The housing (150) may include a main housing (151) formed hollow and accommodating the rotor (120), a cover housing (153) coupled to one side of the steering shaft (110) and coupled to the main housing (151), and a sensor housing (152) coupled to the other side of the steering shaft (110) and accommodating a sensor (212) to be described later.

[0042] The main housing (151) is coupled to the vehicle body and the steering input device (100) according to the present embodiments can be installed.

[0043] The rotor (120) is equipped with a spring (123). As the steering shaft (110) rotates, the torque generated by the twisting of the spring (123) is provided as a reaction torque to the steering shaft (110), thereby improving the steering feel of the driver. In addition, the steering wheel rotated by the torque provided by the spring (123) can be returned to the neutral position.

[0044] A circumferential separation space (123c) is formed between one end (see drawing symbol 123a) and the other end (see drawing symbol 123b) of the spring (123) (see FIG. 4).

[0045] The first support member (130) and the second support member (140) are positioned in the space (123c) formed between the two ends of the spring (123) (see Fig. 5).

[0046] The first support member (130) is positioned in the separation space (123c) and is supported circumferentially at both ends of the spring (123), and the second support member (140) is positioned in the separation space (123c) and is pressed against both ends of the spring (123) by an elastic member (160).

[0047] That is, the direction in which the first support member (130) and the second support 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.

[0048] In addition, since the steering feel provided to the driver must be the same regardless of the direction of rotation of the steering wheel, the two ends of the spring (123), the first support member (130), and the second support member (140) are provided symmetrically left and right.

[0049] The first support member (130) has a rod shape parallel to the steering shaft (110) as shown in the drawing, and both ends of the spring (123) can be supported.

[0050] And, as will be described in detail later, 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).

[0051] The first support (141) and the second support (142) are pressed against one end and the other end of the spring (123), respectively, by an elastic member (160).

[0052] 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 circumferentially by the housing (150).

[0053] That is, when the steering shaft (110) rotates, the first support member (130) rotates, but the second support member (140) does not rotate.

[0054] The first support member (130) is supported by one end or the other end of the spring (123) and rotates by the rotation of the steering shaft (110), but the other end or one end of the spring (123) is supported by the second support member (140) and fixed.

[0055] Accordingly, the spring (123) is twisted and a reaction torque is provided to the steering shaft (110). The structure for providing a reaction torque by twisting the spring (123) will be described in detail later.

[0056] Referring to FIG. 2, the steering input device (100) according to the present embodiments may further include a damper (211) coupled to the steering shaft (110) and the housing (150).

[0057] A damper (211) is coupled to an end of the steering shaft (110) and can be coupled to a sensor housing (152). The damper (211) provides rotational damping to the steering shaft (110), thereby improving the steering feel.

[0058] Additionally, according to one 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).

[0059] 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 steering force for steering the wheels.

[0060] That is, the steering shaft (110) of the steering input device (100) according to the present embodiments may not be mechanically connected to the wheel being steered. The electronic control device may control the steering actuator based on the rotation angle information sensed by the sensor (212) and information sensed by other sensors, such as vehicle speed and the driver's steering torque.

[0061] Referring to FIG. 3, according to one 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 mounted.

[0062] In one embodiment, the first rotor (121) may be serrated and coupled to the steering shaft (110). Accordingly, the rotor (120) and the steering shaft (110) may be fixed in the circumferential direction and rotate together.

[0063] According to one embodiment, a first stopper (121a) may be formed on the first rotor (121), and a second stopper (153a) may be formed on the housing (150) so as to be supported circumferentially by the first stopper (121a). Rotation of the steering shaft (110) is stopped as the first stopper (121a) is supported by the second stopper (153a).

[0064] In one 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).

[0065] 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 facing surfaces of the first rotor (121) and the sensor housing (152), respectively. The first support member (130) can be coupled to the other axial surface of the first rotor (121), that is, the surface opposite to the surface on which the first stopper (121a) is formed.

[0066] In one embodiment, the spring (123) may be mounted on the outer surface of the second rotor (122). The second rotor (122) may be coupled to the axial other surface of the first rotor (121), i.e., the surface to which the first support member (130) is coupled.

[0067] Accordingly, the first rotor (121) and the second rotor (122) rotate together. The spring (123) is mounted on the outer surface of the second rotor (122), and as described later, both ends are bent and provided to protrude radially from the outer surface of the second rotor (122).

[0068] In one embodiment, the second rotor (122) may include a first bush (221) having a first protrusion (221a) formed on an outer surface thereof, which is coupled to the first rotor (121) and supported by a spring (123) on one axial side thereof, and a second bush (222) having a second protrusion (222a) formed on an outer surface thereof, which is coupled to the first bush (221) and supported by a spring (123) on the other axial side thereof.

[0069] The first bush (221) and the second bush (222) are axially coupled, and the spring (123) is positioned between the first protrusion (221a) and the second protrusion (222a) on the outer surface of the first bush (221) and the second bush (222) (see FIG. 2).

[0070] Referring to FIGS. 4 and 5, according to one embodiment, one end and the other end of the spring (123) may be bent to extend radially, thereby forming a separation space (123c). The two ends of the spring (123) are spaced apart axially and simultaneously form a circumferential separation space (123c).

[0071] The first support member (130) is positioned in the separation space (123c) and is supported by both ends of the spring (123), and the second support member (140) is positioned in the separation space (123c) and is pressed against both ends of the spring (123) by an elastic member (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) located in the separation space (123c) on opposite sides.

[0072] When the rotor (120) rotates in one direction in the circumferential direction together with the steering shaft (110), the first support member (130) is supported by one end of the spring (123) and rotates.

[0073] However, the other end of the spring (123) is supported in the circumferential direction on the housing (150) and is supported on the fixed second support member (140) and is fixed without being rotated, so that the spring (123) twists and a reaction torque is provided to the steering shaft (110).

[0074] Conversely, when the rotor (120) rotates in the other direction along with the steering shaft (110), the first support member (130) is supported by the other end of the spring (123) and rotates. In addition, since one end of the spring (123) is fixed and cannot rotate, the spring (123) is similarly twisted and a reaction torque is provided to the steering shaft (110).

[0075] If both ends of the spring (123) are not supported simultaneously by the first support member (130) and the second support member (140), the driver's steering feel is reduced.

[0076] That is, if both ends of the spring (123) are supported only by the first support member (130) in the neutral state of the steering wheel and a gap exists 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, the spring (123) does not twist until the end of the spring (123) is supported by the second support member (140), so the reaction torque is not provided, and thus the steering feel is deteriorated.

[0077] Alternatively, if both ends of the spring (123) are supported only by the second support member (140) in the neutral state of the steering wheel and a gap exists between both ends of the spring (123) and both sides of the first support member (130), the steering shaft (110) rotates idle until the ends of the spring (123) are supported by the first support member (130), thereby reducing the steering feel.

[0078] Alternatively, if both ends of the spring (123) are not supported by either the first support member (130) or the second support member (140) in the neutral state of the steering wheel, it is natural that the driver's steering feel is reduced.

[0079] Therefore, in order to provide a high steering feel to the driver, both ends of the spring (123) need to be supported simultaneously by the first support member (130) and the second support member (140).

[0080] Fig. 5 illustrates a state in which both ends of a spring (123) are simultaneously supported by a first support member (130) and a second support member (140) in a neutral position. In addition, Fig. 6 illustrates a state in which a steering shaft (110) is rotated counterclockwise in the drawing in a neutral position, one end of a spring (123) is supported and fixed by a second support member (140), and the other end of the spring (123) is supported and rotated by a first support member (130).

[0081] As shown in FIG. 5, since both ends of the spring (123) are simultaneously supported by the first support member (130) and the second support member (140) in a neutral state, as shown in FIG. 6, when the steering shaft (110) is rotated, one end or the other end of the spring (123) does not move due to the second support member (140) even if the first support member (130) is rotated.

[0082] Therefore, as soon as the driver turns the steering wheel from the neutral position, the spring (123) twists and a reaction torque is provided.

[0083] If there is a gap between the end of the spring (123) and the second support member (140), the twisting of the spring (123) does not occur until the driver rotates the steering wheel by that gap, thereby reducing the steering feel. Through this structure, the steering input device (100) according to the present embodiments can provide the driver with a high steering feel.

[0084] In one embodiment, 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).

[0085] The first support member (130) is configured 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 body (141) and a second support body (142) and can be brought into close contact with one end and the other end of the spring (123), respectively, by an elastic member (160).

[0086] That is, one end of the spring (123) can be simultaneously supported by the first support member (130) and the first support body (141), and the other end of the spring (123) can be simultaneously supported by the first support member (130) and the second support body (142).

[0087] Referring to FIGS. 2 and 7, according to one embodiment, a slit (154) may be formed in the housing (150) into which a first support (141) and a second support (142) are inserted to be axially movable.

[0088] The first support (141) and the second support (142) inserted into the slit (154) are axially movable along the slit (154), but are pressed against one end and the other end of the spring (123), respectively, by the elastic member (160).

[0089] In one embodiment, an 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), whereby 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), respectively.

[0090] In one embodiment, the elastic member (160) may be a coil spring. In addition, protrusions that are inserted into the coil spring are formed protrudingly on the first support (141) and the second support (142), so that the coil spring can be coupled by having both ends fitted into the protrusions of the first support (141) and the second support (142).

[0091] Referring to FIG. 8, according to one embodiment, the first support (141) and the second support (142) may be formed to have a width that becomes narrower along the axial direction. Slanted surfaces may be formed on both sides of the first support (141) and the second support (142), so that the width may become narrower along the axial direction.

[0092] The first support (141) and the second support (142) can be formed so that their widths become narrower from the axial inner side toward the outer side, that is, as the first support (141) and the second support (142) move away from each other. Accordingly, as the elastic force of the elastic member (160) is provided toward the axial outer side, they can naturally come into close contact with one end and the other end of the spring (123).

[0093] In one 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) can be fixed to the housing (150) by a fixing member (902).

[0094] That is, the first support (141) and the second support (142) are pressed against 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 member (141) and the second support member (142) inserted into the slit (154) can be fixed to the housing (150) by the fixing member (902).

[0095] Referring to FIGS. 9A and 9B, an example of a method of attaching the first support (141) and the second support (142) to both ends of the spring (123) in the steering input device (100) according to the present embodiments will be examined.

[0096] First, in the initial assembly 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 come into contact with one end and the other end of the spring (123), respectively.

[0097] 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). After that, the first support member (141) and the second support member (142) can be fixed to the housing (150) using the fixing member (902).

[0098] In 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.

[0099] According to a steering input device having such a shape and a mobility including the same, a steering input device having a compact structure and capable of improving a driver's steering feel and a mobility including the same can be provided.

[0100] The above description is merely an example of the technical idea of ​​the present disclosure, and those skilled in the art to which the present disclosure pertains will appreciate that various modifications and variations can be made without departing from the essential characteristics of the technical idea of ​​the present disclosure. In addition, the present embodiments are not intended to limit the technical idea of ​​the present disclosure but rather to explain it, and therefore the scope of the technical idea of ​​the present disclosure is not limited by these embodiments. The scope of protection of the present disclosure should be interpreted by the claims below, and all technical ideas within a scope equivalent thereto should be interpreted as being included in the scope of the rights of the present disclosure.

Claims

1. Steering shaft; A rotor coupled to the steering shaft and having a spring having a circumferential space formed between both ends; A first support member coupled to the rotor, positioned in the separation space, and supported circumferentially at 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 above-mentioned space and supported circumferentially by the housing; An elastic member that supports the second support member and presses the spring in a circumferential direction to both ends of the spring; A steering input device including:

2. In paragraph 1, A steering input device further comprising a damper coupled to the steering shaft and the housing.

3. In paragraph 1, A steering input device further comprising a sensor for sensing a rotation angle of the steering shaft.

4. In paragraph 1, The above rotor, a first rotor to which the first support member is coupled; and A second rotor on which the above spring is mounted; A steering input device including:

5. In paragraph 4, A steering input device characterized in that the first rotor is connected to the steering shaft by serration.

6. In paragraph 4, A steering input device characterized in that a first stopper is formed on the first rotor, and a second stopper that can be supported in a circumferential direction with the first stopper is formed on the housing.

7. In paragraph 6, A steering input device, characterized in that the first stopper is formed on one axial side surface of the first rotor, and the first support member is coupled to the other axial side surface of the first rotor.

8. In paragraph 4, A steering input device, characterized in that the spring is mounted on the outer surface of the second rotor.

9. In paragraph 4, The above second rotor, A first bushing coupled to the first rotor and having a first protrusion formed on the outer surface thereof and supported by the spring on one axial side; and A second bush having a second protrusion formed on the outer surface thereof, which is coupled to the first bush and supported by the spring on the axial side; A steering input device including:

10. In paragraph 1, A steering input device characterized in that one end and the other end of the spring are bent and extended radially, and a separation space is formed between the one end and the other end.

11. In paragraph 1, The above second support member is, A first support member 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; A steering input device including:

12. In paragraph 11, A steering input device characterized in that a slit is formed in the housing into which the first support and the second support are inserted so as to be axially movable.

13. In paragraph 11, A steering input device characterized in that the elastic member is provided between the first support body and the second support body.

14. In paragraph 13, A steering input device characterized in that the above elastic member is a coil spring.

15. In paragraph 11, A steering input device characterized in that the first and second supports are formed to have a width that narrows along the axial direction.

16. In paragraph 11, A steering input device characterized in that the first support and the second support, which are in close contact with one end and the other end of the spring, are fixed to the housing by a fixing member.

17. In paragraph 16, A steering input device characterized in that the elastic member is removed after the first support body and the second support body are fixed to the housing by the fixing member.

18. Mobility comprising a steering input device according to paragraph 1.

19. In paragraph 18, A steering angle sensor for sensing the rotation angle of the steering shaft; A steering actuator that generates steering force to steer the boat; An electronic control device that receives rotation angle information of the steering shaft from the steering angle sensor and controls the steering actuator; Mobility that includes more.

20. In paragraph 19, A mobility characterized in that the above steering actuator steers the front wheels.

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