Lever device

Abstract

To provide a lever device capable of stably holding a lever member in a neutral position.SOLUTION: A lever device 1 comprises a base portion 20, a lever member 30 provided on the base portion 20 and supported so as to be movable in at least two perpendicular axial directions, a movable magnet member 50 that rotates in accordance with the amount of movement of the lever member 30, and a fixed magnet member 60 provided on the base portion 20, and the movable magnet member 50 and the fixed magnet member 60 urge the lever member 30 to a neutral position through magnetic interaction, thereby enabling the lever member 30 to be stably held in the neutral position.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a lever device. [Background technology]

[0002] A known conventional lever device configuration is described in Patent Document 1. The lever device described in Patent Document 1 is a lever device for a steering device, and includes a lever member, a support portion that is a link that supports the lever member so that it can be tilted, and a spring portion provided on the support portion. The spring portion applies an elastic force to the link portion, so that the lever member is held in a neutral position when the hand is released from the lever member. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Utility Model Application Publication No. 5-11263 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the lever member described in Patent Document 1, the lever member is held in the neutral position by the elastic force of the spring portion. Therefore, there is a problem that variations in the spring constant of the spring portion or fluctuations in the spring constant due to deterioration of the spring portion over time can cause the elastic force applied to the support portion to become unstable, and the lever member cannot be held in the neutral position.

[0005] The present invention has been made to solve such problems, and has an object to provide a lever device that can stably hold a lever member in a neutral position. [Means for solving the problem]

[0006] In order to solve the above problems, the lever device of the present invention comprises a base portion, a lever member provided on the base portion and supported so as to be movable in at least two perpendicular axial directions, a movable magnet member that rotates in accordance with the amount of movement of the lever member, and a fixed magnet member provided on the base portion, and the movable magnet member and the fixed magnet member bias the lever member to a neutral position through magnetic interaction.

[0007] The fixed magnet member may have a hollow portion, and the movable magnet member may be provided in the hollow portion of the fixed magnet member. The movable magnet member may have a hollow portion, and the fixed magnet member may be provided in the hollow portion of the movable magnet member. The movable magnet member may have at least one set of magnetic poles along the rotation direction, and the fixed magnet member may have the same number of sets of magnetic poles as the number of magnetic poles of the movable magnet member along the rotation direction of the movable magnet member. The movable magnet member and the fixed magnet member may also be permanent magnets. [Effects of the Invention]

[0008] The lever device of this invention comprises a movable magnet member that rotates in accordance with the amount of movement of the lever member, and a fixed magnet member provided on the base portion.The movable magnet member and the fixed magnet member bias the lever member to a neutral position through magnetic interaction, so that the lever member can be stably held in the neutral position. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a schematic perspective view of a lever device according to a first embodiment of the present invention. [Figure 2] 2 is a schematic perspective view of the lever device 1 shown in FIG. 1, viewed from below. FIG. [Figure 3] 3 is an exploded view of a part of the lever device 1 shown in FIG. 2. FIG. [Figure 4] 3 is a cross-sectional view of the lever device shown in FIG. 2 taken along line AA'. [Figure 5] 4 is a side view of the fixed magnet member shown in FIG. 3, viewed from the magnet mounting portion side. [Figure 6]4 is an enlarged bottom view of the side surface and fixed magnet member shown in FIG. 3. FIG. [Figure 7] 3 is a schematic diagram showing a first positional relationship between a movable magnet member and a fixed magnet member according to the first embodiment. FIG. [Figure 8] 10 is a schematic diagram showing a second positional relationship between the magnetic poles of the movable magnet member and the magnetic poles of the fixed magnet member according to the first embodiment. FIG. [Figure 9] 10 is a schematic diagram showing the positional relationship between the magnetic poles of the movable magnet member and the magnetic poles of the fixed magnet member according to the second embodiment. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] Embodiment 1 A lever device according to a first embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective schematic diagram of the lever device according to the first embodiment. Lever device 1 is a device used in an aircraft control stick and includes a base 20 provided near the cockpit of the aircraft and a lever member 30 through which a pilot inputs control operations for the aircraft. Lever member 30 includes a grip 31 for the pilot to grasp and an arm 32 that passes through a rectangular hole 21 formed in base 20 and extends on the opposite side from grip 31. Arm 32 is connected via mechanical parts to an aileron, elevator, or other device (not shown) provided on a wing of the aircraft. When a pilot grips grip 31 and tilts lever member 30, arm 32 moves, and a moving surface such as an aileron or elevator connected to arm 32 operates.

[0011] In the first embodiment, the vertical direction shown in FIG. 1 is referred to as the Z direction. In addition, along the Z direction, the side of the lever member 30 where the grip portion 31 is provided is referred to as the upper side, and the side where the arm portion 32 is provided is referred to as the lower side. In addition, a first direction perpendicular to the Z direction is referred to as the X direction, and a second direction perpendicular to the X direction and the Z direction is referred to as the Y direction. The lever member 30 is configured so that it can be moved by an operator in two axial directions, the X direction and the Y direction. In addition, when the lever member 30 is in a neutral position, the arm portion 32 extends along the vertical direction.

[0012] FIG. 2 is a schematic perspective view of the lever device 1 shown in FIG. 1, viewed from below. The arm portion 32 is supported by a support portion 33. The support portion 33 is a link mechanism that supports the arm portion 32 below the rectangular hole 21 (see FIG. 1) so that the lever member 30 can be freely tilted in the X and Y directions. A square cylindrical magnet mounting portion 34 is formed near the support portion 33 so as to accommodate the support portion 33 therein. One set of side surfaces of the magnet mounting portion 34 is arranged parallel to the X-axis direction, and the other set of side surfaces is arranged parallel to the Y-axis direction. An X-axis magnet portion 35x for detecting the tilt of the lever member 30 in the X-axis direction and an X-axis magnet holder 36x for holding the X-axis magnet portion are attached to one side surface 34x of the side surfaces of the magnet mounting portion 34 that are parallel to the X-axis direction. Furthermore, of the side surfaces of the magnet mounting portion 34 that are parallel to the Y-axis direction, one side surface 34y is fitted with a Y-axis magnet portion 35y for detecting the inclination of the lever member 30 in the Y-axis direction, and a Y-axis magnet holding portion 36y for holding the Y-axis magnet portion.

[0013] FIG. 3 is an exploded view of a portion of the lever device 1 shown in FIG. 2. While FIG. 3 illustrates the X-axis magnet portion 35x and the X-axis magnet holder 36x in an exploded view, the Y-axis magnet portion 35y and the Y-axis magnet holder 36y also have the same configuration. An X-axis rotation shaft 41x penetrates the side surface 34x and protrudes along the X-axis direction. This X-axis rotation shaft 41x is connected to the arm portion 32 of the lever member 30 via a support portion 33, and rotates in the X-axis direction in response to the tilt of the lever member 30 in the X-axis direction. Four spacers 37 are arranged on the side surface 34x to surround the X-axis rotation shaft 41x.

[0014] The X-axis rotation shaft 41x is inserted into and fitted into a rotation shaft hole 51 of a cylindrical movable magnet member 50. The X-axis rotation shaft 41x has a hole in its axial center, into which a pin 42 is inserted. After the X-axis rotation shaft 41x is inserted into the rotation shaft hole 51 of the movable magnet member 50, the pin 42 is inserted into a pin hole 53 orthogonal to the rotation shaft hole 51 and into a pin hole in the X-axis rotation shaft 41x, thereby coupling the X-axis rotation shaft 41x to the movable magnet member 41x. A cylindrical fixed magnet member 60 is provided radially outward from the movable magnet member 50. A plate 38 is provided outside the fixed magnet member 60. The plate 38 is screwed to the tip of the spacer 37 with a screw 39, thereby holding the movable magnet member 50 and the fixed magnet member 60 in the X-axis magnet holder 36x. The plate 38 is provided with a bearing bush 40 that rotatably supports the X-axis rotation shaft 41x. The movable magnet member 50, the rotary shaft hole 51, the pin hole 53, and the fixed magnet member 60 constitute an X-axis magnet portion 35x. The spacer 37, the plate 38, the screw 39, and the bearing bush 40 constitute an X-axis magnet holding portion 36x.

[0015] 4 is a partial cross-sectional view of the lever device taken along line A-A' of FIG. 2. X-axis rotation shaft 41x connected to support portion 33 is inserted into rotation shaft hole 51 of cylindrical movable magnet member 50. When lever member 30 is tilted in the X-axis direction and arm portion 32 moves, support portion 33 rotates in the X-axis direction, and X-axis rotation shaft 41x rotates in the X-axis direction, causing movable magnet member 50 to rotate. In addition, a cylindrical fixed magnet member 60 is provided on the outside of movable magnet member 50. The fixed magnet member is connected to side surface 34x of magnet mounting portion 34.

[0016] FIG. 5 is a side view of the fixed magnet member 60 shown in FIG. 3 , viewed from the magnet mounting portion 34 side. The fixed magnet member 60 has a fixed magnet end portion 63 cut out on the radially outer side of the end portion closer to the magnet mounting portion 34, forming a fixed magnet cutout portion 61 extending parallel to the diameter direction. FIG. 6 is an enlarged bottom view of the side surface 34x and the fixed magnet member 60 shown in FIG. 3. Note that in FIG. 6, for ease of explanation, illustration of components other than the side surface 34x and the fixed magnet member 60 is omitted. The side surface 34x has a side surface portion 34a and a side cutout portion 34b formed by cutting the side surface portion 34a along the Z-axis direction. The side surface portion 34a comes into contact with the fixed magnet cutout portion 61, and the side cutout portion 34b fits into the fixed magnet end portion 63, thereby positioning and fixing the fixed magnet member 60 to the side surface 34x of the magnet mounting portion 34. Although the side surface 34x and the fixed magnet member 60 attached to the side surface 34x have been described with reference to FIG. 6, the side surface 34y and the fixed magnet member 60 attached to the side surface 34y shown in FIG. 3 also have the same configuration.

[0017] FIG. 7 is a schematic diagram showing a first positional relationship between the movable magnet member 50 and the fixed magnet member 60 according to the first embodiment. FIG. 7 shows the movable magnet member 50 and the fixed magnet member 60 as viewed along the direction of extension of the X-axis rotation axis 41x or the Y-axis rotation axis 41y. The movable magnet member 50 is provided in a hollow portion 62 inside the fixed magnet member 60. That is, there is a gap between the movable magnet member 50 and the fixed magnet member 60 in the radial direction. The movable magnet member 50 is a permanent magnet, and is a four-pole magnet with two pairs of N and S poles formed along the circumferential direction. The fixed magnet member 60 is also a permanent magnet, and is a four-pole magnet with two pairs of N and S poles formed along the circumferential direction. Furthermore, the movable magnet member 50 and the fixed magnet member 60 are positioned such that when the lever member 30 shown in Figure 1 is in the neutral position, the center of the N pole of the movable magnet member 50 faces the center of the S pole of the fixed magnet member 60, and the center of the S pole of the movable magnet member 50 faces the center of the N pole of the fixed magnet member 60.

[0018] Next, the operation of the lever device 1 according to the first embodiment will be described. First, a state will be described in which the operator is not gripping the lever member 30 and no external force is being applied to the lever member 30, as shown in FIG. 1. At this time, as shown in FIG. 7, the center of the N pole of the movable magnet member 50 faces the center of the S pole of the fixed magnet member 60, and the center of the S pole of the movable magnet member 50 faces the center of the N pole of the fixed magnet member 60. Therefore, due to the magnetic attraction between the movable magnet member 50 and the fixed magnet member 60, i.e., magnetic interaction, the movable magnet member 50 and the fixed magnet member 60 are held in a positional relationship in which the center of the N pole of the movable magnet member 50 faces the center of the S pole of the fixed magnet member 60 and the center of the S pole of the movable magnet member 50 faces the N pole of the fixed magnet member 60. As a result, the lever member 30, which is connected to the movable magnet member 50 via the X-axis rotation axis 41x and connected to the movable magnet member 50 via the Y-axis rotation axis 41y, is held in a neutral position in both the X-axis and Y-axis directions.

[0019] Next, an operation will be described when an operator grips the lever member 30 and applies an external force to tilt the lever member 30. Fig. 8 is a schematic diagram showing a second positional relationship between the magnetic poles of the movable magnet member and the magnetic poles of the fixed magnet member according to the first embodiment. When the lever member 30 is tilted in the X-axis direction, as the lever member 30 is tilted in the X-axis direction and the X-axis rotation shaft 41x rotates in the direction of arrow A, the center of the N pole of the movable magnet member 50 moves to a position shifted in the circumferential direction (the direction of arrow A) relative to the center of the S pole of the fixed magnet member 60, and the center of the S pole of the movable magnet member 50 moves to a position shifted in the direction of arrow A relative to the center of the S pole of the fixed magnet member 60.

[0020] When the centers of the N and S poles of the movable magnet member 50 are misaligned with the centers of the N and S poles of the movable magnet member 50 on the fixed magnet member 60, a magnetic interaction occurs between the fixed magnet member 60 and the movable magnet member 50 due to an attractive force between the S pole of the fixed magnet member 60 and the N pole of the movable magnet member 50, an attractive force between the N pole of the fixed magnet member 60 and the S pole of the movable magnet member 50, a repulsive force between the S pole of the fixed magnet member 60 and the S pole of the movable magnet member 50, and a repulsive force between the N pole of the fixed magnet member 60 and the S pole of the movable magnet member 50. This magnetic interaction generates a torque in the circumferential direction, in the direction of arrow B, which is opposite to the direction of arrow A, in the movable magnet member 50, so that the center of the N pole of the movable magnet member 50 faces the center of the S pole of the fixed magnet member 60 and vice versa. This torque is applied from X-axis rotation shaft 41x to support portion 33 and arm portion 32. As a result, due to the magnetic interaction between movable magnet member 50 and fixed magnet member 60, a force acts on lever member 30 to tilt it in the direction opposite to the direction in which it was tilted.

[0021] Next, we will explain what happens when the lever member 30 is tilted in the Y-axis direction. When the lever member 30 is tilted in the Y-axis direction and the Y-axis rotation axis 41y rotates in the direction of arrow A, the positions of the centers of the S and N poles of the movable magnet member 50 shift relative to the centers of the N and S poles of the movable magnet member 50 of the fixed magnet member 60, just as when the lever is tilted in the X-axis direction. At this time, due to magnetic interactions between the fixed magnet member 60 and the movable magnet member 50, including the attractive force between the south pole of the fixed magnet member 60 and the north pole of the movable magnet member 50, the attractive force between the north pole of the fixed magnet member 60 and the south pole of the movable magnet member 50, the repulsive force between the south pole of the fixed magnet member 60 and the south pole of the movable magnet member 50, and the repulsive force between the north pole of the fixed magnet member 60 and the north pole of the movable magnet member 50, a torque is generated in the movable magnet member 50 in the circumferential direction, in the direction of arrow B, which is opposite to the direction of arrow A, so that the center of the north pole of the movable magnet member 50 faces the center of the south pole of the fixed magnet member 60, and vice versa. This torque is applied to the support portion 33 and the arm portion 32 from the Y-axis rotation shaft 41y. As a result, due to the magnetic interaction between the movable magnet member 50 and the fixed magnet member 60, a force acts on the lever member 30 to tilt it in the direction opposite to the tilted direction.

[0022] As described above, whether the lever member 30 is tilted in the X-axis direction or the Y-axis direction, a tilting force acts on the lever member 30 in the direction opposite to the tilting direction. Furthermore, this tilting force in the direction opposite to the tilting direction of the lever member 30 is generated and acts independently in the X-axis and Y-axis directions by the X-axis magnet portion 35x and the Y-axis magnet portion 35y. Therefore, even if the lever member 30 is tilted in both the X-axis and Y-axis directions, a tilting force in the direction opposite to the tilting direction acts on the lever member 30 in both the X-axis and Y-axis directions. Furthermore, when the lever member 30 is brought to the neutral position by the tilting force in the direction opposite to the tilting direction, the lever member 30 is held in the neutral position due to the magnetic interaction between the movable magnet member 50 and the fixed magnet member 60. In this manner, the lever member 30 is biased to the neutral position.

[0023] When the lever member 30 is tilted, if the rotation angle of the movable magnet member 50 exceeds half the angular range in which the north and south poles of the fixed magnet member are formed, the torque generated by the magnetic interaction between the movable magnet member 50 and the fixed magnet member 60 will be generated in a direction different from the direction in which the lever member 30 returns to the neutral position. Therefore, the tiltable range of the lever member 30 is configured so that when the lever member 30 is tilted in the X-axis or Y-axis direction, the rotation angle of the movable magnet member 50 is less than half the angular range in which the poles of the fixed magnet member are formed, so that the magnetic interaction between the movable magnet member 50 and the fixed magnet member 60 generates a torque that urges the lever member 30 to the neutral position.

[0024] In a conventional lever device that maintains a lever member in a neutral position by the elastic force of a spring portion composed of multiple springs, variations in the elastic force of each spring that constitutes the spring portion can cause the elastic force applied to the support portion of the lever member to become unstable, which can result in the lever member not being maintained in the neutral position. Also, in conventional lever devices, deterioration over time of each spring that constitutes the spring portion can reduce the elastic force applied to the support portion of the lever member, which can result in the lever member not being maintained in the neutral position or the lever member wobbling near the neutral position.

[0025] On the other hand, in the lever device 1 of the first embodiment, the movable magnet member 50 and the fixed magnet member 60 provided on the X-axis magnet portion 35x and the Y-axis magnet portion 35y are kept out of contact with each other, and the magnetic interaction between the movable magnet member 50 and the fixed magnet member 60 generates a torque that tilts the lever member 30 in the direction opposite to the direction in which it was tilted, further maintaining the lever member 30 in the neutral position. Therefore, in the lever device 1 of the first embodiment, there is little variation in the force that holds the lever member 30 in the neutral position, and the lever member 30 is less likely to wobble when it is near the neutral position. Furthermore, the force due to the magnetic interaction between the movable magnet member 50 and the fixed magnet member 60 is less likely to attenuate due to deterioration over time, so the lever member 30 can be held in the neutral position more reliably and stably.

[0026] In addition, in conventional lever devices that use the elastic force of a spring to keep a lever member in a neutral position, friction between the spring constituting the spring and the spring's retention mechanism can cause the elastic force applied to the support portion of the lever member to be asymmetrical depending on whether the lever member is tilted or returned. For example, when tilting a lever along the X-axis, the elastic hysteresis of the spring can cause the elastic force applied to the support portion of the lever member to be different between tilting the lever to one side along the X-axis and returning the lever tilted in the X-axis direction to the neutral position, resulting in asymmetrical elastic forces. In contrast, the lever device 1 of the first embodiment does not use a spring, but instead applies a force to the support portion 33 of the lever member 30 to keep the lever member 30 in the neutral position through magnetic interaction between the movable magnet member 50 and the fixed magnet member 60. This has the advantage that the force applied to the support portion 33 is not asymmetrical depending on whether the lever member 30 is tilted or returned.

[0027] Thus, the lever device 1 according to the first embodiment comprises a base portion 20, a lever member 30 provided on the base portion 20 and supported so as to be movable in at least two perpendicular axial directions, a movable magnet member 50 that rotates in accordance with the amount of movement of the lever member 30, and a fixed magnet member 60 provided on the base portion 20, and the movable magnet member 50 and the fixed magnet member 60 urge the lever member 30 to a neutral position through magnetic interaction, thereby enabling the lever member 30 to be stably held in the neutral position.

[0028] Furthermore, since the fixed magnet member 60 has a hollow portion 62 and the movable magnet member 50 is provided in the hollow portion 62 of the fixed magnet member 60, the movable magnet member 50 can be provided facing the fixed magnet member 60 with a simple configuration.

[0029] Furthermore, the movable magnet member 50 has at least one set of magnetic poles along the rotational direction, and the fixed magnet member 60 has the same number of sets of magnetic poles as the magnetic poles of the movable magnet member 50 along the rotational direction of the movable magnet member 50, so that the lever member 30 can be stably held in a neutral position due to the magnetic attractive and repulsive forces between each magnetic pole of the movable magnet member 50 and each magnetic pole of the fixed magnet member 60.

[0030] Furthermore, since the movable magnet member 50 and the fixed magnet member 60 are permanent magnets, no power source is required to energize the lever member 30, and this has the advantage that less space is required in the lever device 1 to energize the lever member 30.

[0031] In the lever device 1 of the first embodiment, the arm portion 32 is connected to an aileron, elevator, etc. (not shown) provided on the wing of the aircraft via mechanical parts, but the aileron, elevator, etc. may also be electrically controlled by a fly-by-wire flight control system.

[0032] Embodiment 2 Next, a lever device according to a second embodiment of the present invention will be described. In the second embodiment, the same reference numerals as those in Figures 1 to 8 denote the same or similar components as those in the first embodiment, and detailed description thereof will be omitted. In the lever device according to the second embodiment, the positions of the fixed magnet member and the movable magnet member are interchanged with those of the first embodiment. 9 is a schematic diagram showing the positional relationship between the magnetic poles of the movable magnet member and the magnetic poles of the fixed magnet member according to the second embodiment. A cylindrical fixed magnet member 60a is provided in the hollow portion 52 inside the cylindrical movable magnet member 50a. The fixed magnet member 60a is attached and fixed to the magnet mounting portion 34 shown in FIG. 2. The movable magnet member 50a is connected to the X-axis rotation axis or the Y-axis rotation axis via a connecting member (not shown) and is provided so as to be rotatable. The other configurations are the same as those of the first embodiment.

[0033] In this way, the movable magnet member 50a has a hollow portion 52, and the fixed magnet member 60a is provided in the hollow portion 52 of the movable magnet member 50a, so that the lever member 30 can be held in a neutral position by magnetic interaction between the movable magnet member 50a and the fixed magnet member 60a, as in embodiment 1.

[0034] Although the movable magnet member 50 and the fixed magnet member 60 in the first embodiment of the present invention and the movable magnet member 50a and the fixed magnet member 60a in the second embodiment are permanent magnets, at least one of the movable magnet member and the fixed magnet member may be an electromagnet.

[0035] Furthermore, in the first and second embodiments of the present invention, the X-axis magnet portion 35x and the Y-axis magnet portion 35y bias the lever member 30 to a neutral position in two axial directions, the X-axis direction and the Y-axis direction. In addition, if the lever member is configured to be rotatable around the Z-axis direction, a Z-axis magnet portion may be further provided that biases the lever member to a neutral position in response to rotation of the lever member around the Z-axis direction.

[0036] Furthermore, the movable magnet member 50 and the fixed magnet member 60 in the first embodiment of the present invention are each four-pole magnets, and the movable magnet member 50a and the fixed magnet member 60a in the second embodiment of the present invention are each four-pole magnets, but the number of poles of the movable magnet member and the fixed magnet member can be any even number such as 2, 4, 6, etc., depending on the tilt range required for the lever member 30. In other words, the number of poles of the movable magnet member and the fixed magnet member can be any number of poles as long as they are configured to correspond to the tilt range of the lever member 30 and the rotation angle of the movable magnet members 50, 50a is less than half the angular range in which each pole of the fixed magnet members 60, 60a is provided.

[0037] Furthermore, although the lever device 1 in the first and second embodiments of the present invention is a device used in the control stick of an aircraft, it is not limited to this and may be, for example, a remote control device used to control an unmanned aerial vehicle such as a drone, or a device used to control a powered machine such as heavy machinery, or a device used as an input device for amusement equipment, etc.

[0038] Furthermore, the components included in the first and second embodiments of the present invention and the components included in the variations thereof can be used in appropriate combination.

[0039] Although the preferred embodiments have been described in detail above, the present invention is not limited to the above-described embodiments, and various modifications and substitutions can be made to the above-described embodiments without departing from the scope of the claims.

[0040] Various aspects of the present disclosure are summarized below as appendices.

[0041] [Appendix 1] A base portion (20), a lever member (30) provided on the base portion (20) and supported so as to be movable in at least two orthogonal axial directions; a movable magnet member (50) that rotates in accordance with the amount of movement of the lever member (30); a fixed magnet member (60) provided on the base portion (20); Equipped with The movable magnet member (50) and the fixed magnet member (60) form a lever device that urges the lever member (30) to a neutral position through magnetic interaction. [Appendix 2] The fixed magnet member (60) has a hollow portion (62), 2. The lever device according to claim 1, wherein the movable magnet member (50) is provided in the hollow portion (62) of the fixed magnet member (60). [Appendix 3] The movable magnet member (50a) has a hollow portion (52), 2. The lever device according to claim 1, wherein the fixed magnet member (60a) is provided in the hollow portion (52) of the movable magnet member (50a). [Appendix 4] The movable magnet member (50) has at least one set of magnetic poles along the rotation direction, The lever device according to any one of appendixes 1 to 3, wherein the fixed magnet member (60) has the same number of pairs of magnetic poles as the magnetic poles of the movable magnet member (50) along the rotation direction of the movable magnet member (50). [Appendix 5] 5. The lever device according to any one of claims 1 to 4, wherein the movable magnet member (50) and the fixed magnet member (60) are permanent magnets. [Explanation of symbols]

[0042] 20 Base 30 Lever member 50 Movable magnet member 50a Movable magnet member 52 Hollow part 60 Fixed magnet member 60a Fixed magnet member 62 Hollow part

Claims

1. A base portion (20), a lever member (30) provided on the base portion (20) and supported so as to be movable in at least two orthogonal axial directions; a movable magnet member (50) that rotates in accordance with the amount of movement of the lever member (30); A fixed magnet member (60) provided on the base portion (20); Equipped with The movable magnet member (50) and the fixed magnet member (60) bias the lever member (30) to a neutral position through magnetic interaction.

2. The fixed magnet member (60) has a hollow portion (62), 2. The lever device according to claim 1, wherein the movable magnet member (50) is provided in the hollow portion (62) of the fixed magnet member (60).

3. The movable magnet member (50a) has a hollow portion (52), 2. The lever device according to claim 1, wherein the fixed magnet member (60a) is provided in the hollow portion (52) of the movable magnet member (50a).

4. The movable magnet member (50) has at least one set of magnetic poles along the rotation direction, The lever device according to any one of claims 1 to 3, wherein the fixed magnet member (60) has the same number of sets of magnetic poles as the number of magnetic poles of the movable magnet member (50) along the rotation direction of the movable magnet member (50).

5. The lever device according to any one of claims 1 to 3, wherein the movable magnet member (50) and the fixed magnet member (60) are permanent magnets.

Images