Input device
By placing annular magnetic components in the magnetic sensor device to change the direction of the magnetic field, the existing magnetic sensor device is easily larger and sensitive to interference magnetic fields in the rotation axis direction, thereby realizing the miniaturization of the device and improving the anti-interference ability.
Patent Information
- Application Number
- CN202411269324.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-09-22
- Filing Date
- 2024-09-11
- Publication Date
- 2025-03-25
AI Technical Summary
The existing magnetic sensor devices are prone to scale up in the rotation axis direction and are susceptible to the influence of interfering magnetic fields.
An input device is designed, which is arranged around the magnetic sensor to change the direction of the magnetic field. The annular magnetic component is installed on a rotating movable body, and the magnetic sensor is installed on a fixed body to detect the direction of the magnetic field.
The input device for placing a rotating movable body with a change in the magnetic field direction around the magnetic sensor is realized, reducing the impact on the rotating axis direction device, and reducing the sensitivity to the interfering magnetic field.
Smart Images

Figure CN119687906A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to an input device using a magnetic sensor. Background Art
[0002] Patent document 1 discloses a ball joystick structure with a simple layout, reduced power consumption, simple detection calculation, and lower cost. The ball joystick structure includes a return spring, a linkage part, a first housing, a second housing, a joystick, and a rod bracket. The return spring is provided on the rod bracket, the first housing is fixed on the first side wall of the rod bracket, the second housing is fixed on the second side wall of the rod bracket, the first side wall is perpendicular to the second side wall, and the joystick is configured to drive the movement of the linkage part by rotating inside the rod bracket with the contact point of the rod bracket as the rotation center. A first rotating disk is provided in the first housing, and a second rotating disk is provided in the second housing. The linkage part is configured to be driven to rotate the first rotating disk inside the first housing, and the linkage part is configured to be driven to rotate the second rotating disk inside the second housing. Magnets are fixed inside the first rotating disk and inside the second rotating disk, a first Hall element is provided inside the first housing, and a second Hall element is provided inside the second housing.
[0003] Patent document 2 discloses a magnetic encoder that is easy to manufacture, has high detection accuracy, and is small. The magnetic encoder comprises: a magnetic field generating mechanism that generates a magnetic field perpendicularly and uniformly relative to a rotation axis that rotates integrally with a detected object; a magnetic field detecting mechanism that has directivity and polarity relative to the direction of the magnetic field, at least one of which is configured so that the directivity is maximum in a direction perpendicular to the rotation axis within the magnetic field generated by the magnetic field generating mechanism, and at least one of which is configured at a position rotated around the rotation axis; and a waveform processing circuit that converts a signal obtained from the magnetic field detecting mechanism into angle information and position information.
[0004] Prior art literature
[0005] Patent Literature
[0006] Patent Document 1: Japanese Patent Application Publication No. 2022-166831
[0007] Patent Document 2: Japanese Patent Application Publication No. 2002-181588 Summary of the invention
[0008] Technical problem to be solved by the invention
[0009] Patent document 1 is a structure using a magnetic sensor for detecting the intensity of a magnetic field, but has the problem of being easily affected by an interfering magnetic field. Patent document 2 is a structure using a magnetic sensor for detecting the direction of a magnetic field, which is not easily affected by an interfering magnetic field. However, since the magnetic component composed of a permanent magnet and a yoke extends in the direction of the rotation axis, there is a problem of the device being enlarged in the direction of the rotation axis.
[0010] An object of the present invention is to achieve miniaturization of an input device in which a magnetic member for changing the direction of a magnetic field is arranged around a magnetic sensor.
[0011] Means for solving technical problems
[0012] A technical solution of the present invention is an input device, characterized in that it comprises: a fixed body; a rotating movable body supported by the fixed body so as to be rotatable with a first direction as a rotation center; an annular magnetic component having a main body, a first extending portion extending from one end of the main body, and a second extending portion extending from the other end of the main body, a separating space being formed between a first front end portion of the first extending portion and a second front end portion of the second extending portion facing each other along a second direction orthogonal to the first direction, generating a magnetic field from the first front end portion toward the second front end portion, and the annular magnetic component being mounted on the rotating movable body; and a magnetic sensor being mounted on the fixed body, detecting the direction of the magnetic field emitted from one of the first extending portion and the second extending portion and reaching the other, detecting the rotation of the rotating movable body, and the main body extending in a third direction orthogonal to the first direction and the second direction.
[0013] According to such a configuration, the main body portion that becomes the annular magnetic member extends in a direction different from the rotation axis direction of the rotary movable body, and thus an increase in size of the device in the rotation axis direction is suppressed.
[0014] In the above-mentioned input device, it is also possible that there is also an operating rod supported by the fixed body so as to be able to rotate together with the rotating movable body with the first direction as the rotation center, the annular magnetic component is arranged at a position away from the operating rod in the first direction, and the annular magnetic component includes a permanent magnet, a first yoke and a second yoke, the first yoke has a first base connected to the first front end portion and the pole of one side of the permanent magnet, the second yoke has a second base connected to the second front end portion and the other pole of the permanent magnet, the first yoke has a A first middle portion extending along a surface parallel to the third direction, and a first bent piece bent from the first middle portion along the first direction toward a direction approaching the operating rod, a first magnetic yoke having a second middle portion extending along a surface parallel to the second direction and the third direction, and a second bent piece bent from the second middle portion along the first direction toward a direction approaching the operating rod, the permanent magnet is connected to the first bent piece via one pole and connected to the second bent piece via the other pole, and is arranged at a position closer to the operating rod than the first middle portion and the second middle portion.
[0015] According to such a configuration, since the permanent magnet can be arranged on the side close to the operating rod, the increase in size of the device in the direction of the rotation axis can be further suppressed.
[0016] In the above input device, the rotating movable body may include a rotating shaft body and a rotating disc that rotates in conjunction with the rotating shaft body, the fixed body may include a housing that rotatably supports the rotating shaft body, and a sensing block that is mounted on the housing and rotatably supports the rotating disc and has a magnetic sensor mounted thereon, and the rotating disc is a non-magnetic cylindrical part that is mounted with an annular magnetic component and is rotatably inserted into a cylindrical recess formed on the sensing block. Thus, the magnetic sensor is mounted on the sensing block, and the rotating disc is rotatably supported on the sensing block, so that by mounting the sensing block on the housing, the magnetic sensor and the rotating disc can be assembled in a space-saving manner.
[0017] Effects of the Invention
[0018] According to the present invention, it is possible to achieve miniaturization of an input device in which a rotary movable body for changing the direction of a magnetic field is arranged around a magnetic sensor. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a perspective view illustrating the appearance of the input device according to the present embodiment.
[0020] Figure 2 It is a partially exploded perspective view illustrating an input device according to the present embodiment.
[0021] Figure 3 is a partially exploded perspective view illustrating the structure of a sensing unit.
[0022] Figure 4 It is a perspective view illustrating the structure of a sensor substrate.
[0023] Figure 5 It is an exploded perspective view illustrating the structure of a rotating disk.
[0024] Figure 6 It is a schematic diagram illustrating the structure of an annular magnetic member.
[0025] Fig. 7A is a schematic diagram illustrating the rotation action within the sensing unit.
[0026] Figure 7B is a schematic diagram illustrating the rotation action within the sensing unit.
[0027] Fig. 8A It is a schematic diagram for explaining a modified example.
[0028] Figure 8B It is a schematic diagram for explaining a modified example. DETAILED DESCRIPTION
[0029] Hereinafter, the embodiment of the present invention will be described in detail with reference to the accompanying drawings. In the following description, the same reference numerals are given to the same components, and the description of the components that have been described once will be appropriately omitted.
[0030] (Input device)
[0031] Figure 1 It is a perspective view illustrating the appearance of the input device according to the present embodiment.
[0032] Figure 2 It is a partially exploded perspective view illustrating an input device according to the present embodiment.
[0033] The input device 1 according to the present embodiment is a device that receives input by tilting the operation lever 50 .
[0034] In the description of the embodiment, a rotation axis parallel to the X1-X2 direction, which is one of the rotation axes of the tilting action of the operating lever 50, is set as the first rotation axis AX1, and a rotation axis parallel to the Y1-Y2 direction, which is orthogonal to the X1-X2 direction, is set as the second rotation axis AX2. For the convenience of description, the first rotation axis AX1 and the second rotation axis AX2 are collectively referred to as the rotation axis AX without distinguishing them. In addition, the direction orthogonal to the X1-X2 direction and the Y1-Y2 direction is set as the Z1-Z2 direction.
[0035] The input device 1 includes a fixed body 10 and a rotating movable body 20 rotatably supported by the fixed body 10. The fixed body 10 has a substantially box-shaped housing 11, and an operating rod 50 extends from an opening 11h provided in the housing 11 to the Z2 side in the Z1-Z2 direction. The operating rod 50 is supported by the fixed body 10 so as to be rotatable with the first rotation axis AX1 and the second rotation axis AX2 as respective rotation centers. Thus, the operating rod 50 can be tilted at an angle of 360° when viewed in the Z1-Z2 direction.
[0036] The rotation of the operating rod 50 is transmitted to the rotating movable body 20 of the sensing unit 25, and is sensed by the magnetic sensor 30 (see Figure 3 ) detects the rotation of the rotating movable body 20. The rotating movable body 20 has a rotating shaft body 21 extending along the rotation axis of the operating rod 50 and a rotating disc 22 having a recessed portion 22a engaged with the rotating shaft body 21. The rotating disc 22 is rotatably mounted on the sensing block 31, and the sensing block 31 is fixed to the housing 11, thereby achieving the engagement of the rotating shaft body 21 with the recessed portion 22a of the rotating disc 22.
[0037] Thus, the rotation of the operating rod 50 is transmitted from the rotating shaft 21 to the rotating disk 22, causing the rotating disk 22 to rotate. By detecting the rotation of the rotating disk 22 by the magnetic sensor 30 provided in the sensing block 31, the tilting angle of the operating rod 50 can be detected.
[0038] In the present embodiment, since the rotation axes of the operating lever 50 are two axes, namely, the first rotation axis AX1 and the second rotation axis AX2, the first rotation movable body 20A for detecting rotation with the first rotation axis AX1 as the rotation center and the second rotation movable body 20B for detecting rotation with the second rotation axis AX2 as the rotation center are provided as the rotation movable body 20. The first rotation movable body 20A is mounted on one side surface of the housing 11 orthogonal to the first rotation axis AX1, and the second rotation movable body 20B is mounted on the other side surface of the housing 11 orthogonal to the second rotation axis AX2. For the sake of convenience of explanation, the first rotation movable body 20A and the second rotation movable body 20B are collectively referred to as the rotation movable body 20 without distinguishing them.
[0039] (Sensing unit)
[0040] Figure 3 2 is a partially exploded perspective view illustrating the structure of the sensor unit 25. The sensor unit 25 is an assembly composed of a sensor block 31, a rotationally movable body 20, a rotating disk 22, a sensor substrate 35, and the like.
[0041] The sensing block 31 is provided with a cylindrical recess 31a at the center for rotatably inserting the rotating disk 22. The rotating disk 22 is supported so as to be slidable and rotatable when inserted in the cylindrical recess 31a. A sensor substrate 35 is mounted on the sensing block 31 on the side opposite to the insertion side of the rotating disk 22. The magnetic sensor 30 is mounted on the sensor substrate 35.
[0042] The magnetic sensor 30 is a sensor that detects changes in the direction of the magnetic field. The magnetic sensor 30 is mounted on a sensor substrate 35 on the extension line of the rotation center (rotation axis AX) of the rotating disk 22. An annular magnetic component 40 is arranged around the magnetic sensor 30. The annular magnetic component 40 is mounted on the rotating disk 22 side and rotates around the rotation axis together with the rotating disk 22. For example, Figure 2 In the first rotating movable body 20A shown in FIG. 1 , the magnetic sensor 30 is arranged on an extension line of the first rotating axis AX1, and the annular magnetic member 40 is arranged to be rotatable around the first rotating axis AX1. Figure 2 In the second rotating movable body 20B shown in the figure, the magnetic sensor 30 is arranged on the extension line of the second rotation axis AX2, and the annular magnetic member 40 is provided so as to be rotatable around the second rotation axis AX2.
[0043] In this way, since the magnetic sensor 30 is mounted on the sensing block 31 and the rotating disk 22 is rotatably supported by the sensing block 31, the sensing block 31 is mounted on the housing 11 (see FIG. Figure 2 ) on the magnetic sensor 30 and the rotating disk 22 to save space.
[0044] (Sensor substrate)
[0045] Figure 4 It is a perspective view illustrating the structure of a sensor substrate.
[0046] In addition, for the convenience of explanation, Figure 4 2 , an annular magnetic member 40 is also shown together with the sensor substrate 35 .
[0047] The sensor substrate 35 is a substrate on which the magnetic sensor 30 is mounted. The sensor substrate 35 is provided with a pattern 351 that is electrically connected to the mounted magnetic sensor 30 and a terminal 352 that is electrically connected to the pattern 351. The signal detected by the magnetic sensor 30 is sent to the outside from the terminal 352. Such a sensor substrate 35 is mounted on Figure 3 In the sensing block 31 shown in the figure, the rotating disk 22 equipped with the annular magnetic component 40 is inserted into the cylindrical recess 31a from the opposite side of the sensor substrate 35, thereby the sensor substrate 35 and the annular magnetic component 40 become Figure 4 The positional relationship shown.
[0048] (Ring-shaped magnetic parts)
[0049] like Figure 4 As shown, the annular magnetic component 40 has a main body 41, a first extension portion 42 and a second extension portion 43. When viewed in the direction of the rotation axis AX, the annular magnetic component 40 is set to be a roughly C-shaped body 41 including a permanent magnet 410 as the main part. The first extension portion 42 is extended from one end of the main body 41, and the second extension portion 43 is extended from the other end of the main body 41. The first front end 421 as the front end of the first extension portion 42 and the second front end 431 as the front end of the second extension portion 43 are arranged in a manner facing each other in the second direction D2 orthogonal to the first direction D1, with the direction of the rotation axis AX through which the magnetic sensor 30 passes as the first direction D1. In addition, the main body 41 extends in a third direction D3 orthogonal to the first direction D1 and the second direction D2. Through such a structure, the main body 41 extends in a direction different from the rotation axis direction of the rotating movable body 20, and the enlargement of the device in the rotation axis direction is suppressed.
[0050] A partition space S is formed between the first tip portion 421 and the second tip portion 431. The magnetic sensor 30 is located in the partition space S. In the partition space S, a magnetic field is generated from the first tip portion 421 toward the second tip portion 431, and the magnetic sensor 30 disposed in the partition space S detects the direction of the magnetic field.
[0051] More specifically, the annular magnetic component 40 includes: a first yoke 401 having a first base connected to a first front end portion 421 and a pole of one side of the permanent magnet 410; and a second yoke 402 having a second base connected to a second front end portion 431 and a pole of the other side of the permanent magnet 410.
[0052] The first yoke 401 includes a first intermediate portion 4011 extending along a plane parallel to the second direction D2 and the third direction D3 (a plane perpendicular to the rotation axis AX), and a first intermediate portion 4011 extending from the first intermediate portion 4011 along the first direction D1 toward the operation rod 50 (see Figure 2 ). In addition, the second yoke 402 has a second intermediate portion 4021 extending along a plane parallel to the second direction D2 and the third direction D3 (a plane orthogonal to the rotation axis AX), and a first bent piece 4012 bent in a direction close to the operating rod 50 (see Figure 2 )The second bending piece 4022 is bent in a direction close to the first and second bending pieces.
[0053] Furthermore, one pole of the permanent magnet 410 is connected to the first bent piece 4012 as the first base, and the other pole of the permanent magnet 410 is connected to the second bent piece 4022 as the second base, and is arranged at a position farther from the operating rod 50 (see Figure 2 ) is placed closer. With such a structure, it is possible to further suppress the enlargement of the device in the direction of the rotation axis.
[0054] (rotating disc)
[0055] Figure 5 It is an exploded perspective view illustrating the structure of a rotating disk.
[0056] exist Figure 5 The rotating disk 22 is shown in Figure 3 The sensor block 31 is shown in an exploded perspective view as viewed from the side.
[0057] The rotating disk 22 is a non-magnetic cylindrical part. An annular recess 22b is provided on the rotating disk 22. The annular magnetic component 40 is embedded in the annular recess 22b. In addition, a hook or an anti-collision rib can also be provided on the edge of the annular recess 22b. Thus, the permanent magnet 410, the first yoke 401 and the second yoke 402 embedded in the annular recess 22b can be easily fixed.
[0058] When the annular magnetic member 40 is inserted into the annular recess 22b of the rotating disk 22, the first bent piece 4012 and the second bent piece 4022 (see Figure 4 ) is embedded in the inner side of the rotating disk 22 and does not protrude to the outer side of the rotating disk 22.
[0059] A space forming portion 22c is provided in the center of the rotating disk 22. The space forming portion 22c is provided in the rotating disk 22 at a position adjacent to the rotating shaft body 21 (see Figure 2 ) fitting recessed portion 22a (refer to Figure 2 ). If the annular magnetic component 40 is embedded in the annular recess 22b of the rotating disk 22, the separation space S of the annular magnetic component 40 is located in the space forming portion 22c. Furthermore, if the rotating disk 22 is inserted into the sensing block 31 (refer to Figure 3 ) of the cylindrical recess 31a (see Figure 3 ), the magnetic sensor 30 (refer to Figure 3 ) is arranged in the space forming portion 22c, that is, the dividing space S. By arranging the magnetic sensor 30 in the dividing space S, the deviation in height between the first extending portion 42 and the second extending portion 43 of the annular magnetic member 40 and the magnetic sensor 30 in the direction of the rotation axis AX disappears, and the device can be miniaturized in the direction of the rotation axis AX.
[0060] Figure 6 It is a schematic diagram illustrating the structure of an annular magnetic member.
[0061] exist Figure 6 3 shows the arrangement relationship between the annular magnetic member 40 and the magnetic sensor 30 .
[0062] The annular magnetic member 40 is arranged around the rotation axis AX that passes through the magnetic sensor 30 arranged in the partition space S. The magnetic sensor 30 is mounted on the sensor substrate 35 (see Figure 4 The annular magnetic member 40 rotates around the magnetic sensor 30 as the rotating disk 22 rotates.
[0063] The main body 41 of the annular magnetic component 40 extends in a direction different from the direction of the rotation axis AX. In the present embodiment, it extends in a third direction D3 orthogonal to the first direction D1 as the rotation axis AX, and rotates and moves in a plane parallel to the second direction D2 and the third direction D3. With such a structure, the enlargement of the annular magnetic component 40 in the direction of the rotation axis AX is suppressed.
[0064] Fig. 7A and Figure 7B is a schematic diagram illustrating the rotation action within the sensing unit.
[0065] exist Fig. 7A The operating lever 50 is shown in FIG. Figure 2 ) The position of the annular magnetic component 40 in the sensing block 31 in a state where the sensing block 31 is not tilted. Figure 7B ] shows the position of the annular magnetic member 40 in the sensing block 31 when the operating lever 50 is tilted (tilted at an angle θ) with the rotation axis AX as the rotation center.
[0066] If the operating rod 50 is tilted, the annular magnetic component 40 rotates around the rotation axis AX according to the tilting angle θ of the operating rod 50 with the center of the partition space S as the rotation center. Since the main body 41 of the annular magnetic component 40 extends in a surface (the second direction D2 and the surface along the second direction D2) orthogonal to the rotation axis AX (the first direction D1), the annular magnetic component 40 rotates along the surface orthogonal to the rotation axis AX.
[0067] The rotation angle of the annular magnetic component 40 changes according to the tilting angle θ of the operating rod 50. As a result, the direction of the magnetic field released from one of the first front end portion 421 of the first extension portion 42 and the second front end portion 431 of the second extension portion 43 in the partition space S of the annular magnetic component 40 and reaching the other side changes. The change in the direction of the magnetic field is detected by the magnetic sensor 30 disposed in the partition space S. Based on the change in the direction of the magnetic field detected by the magnetic sensor 30, the tilting angle θ of the operating rod 50 is obtained.
[0068] (Variation Example)
[0069] Fig. 8A and Figure 8B It is a schematic diagram for explaining a modified example.
[0070] exist Fig. 8A and Figure 8B 2 shows the positional relationship between the first extending portion 42 and the second extending portion 43 and the magnetic sensor 30 .
[0071] exist Fig. 8A In the example shown, the magnetic sensor 30 is arranged between the first front end portion 421 of the first extending portion 42 and the second front end portion 431 of the second extending portion 43, that is, in the partition space S. In this case, the magnetic field from one of the first front end portion 421 and the second front end portion 431 toward the other penetrates the magnetic sensor 30.
[0072] On the other hand, Figure 8B In the example shown, the magnetic sensor 30 is not arranged between the first front end portion 421 of the first extension portion 42 and the second front end portion 431 of the second extension portion 43, that is, in the disconnection space S, but the magnetic sensor 30 is arranged near the disconnection space S. In this case, the distance between the first front end portion 421 and the second front end portion 431 can be made close, and the magnetic flux density of the disconnection space S can be increased. The magnetic sensor 30 detects the direction of the magnetic field around the disconnection space S.
[0073] According to the present embodiment, it is possible to achieve miniaturization of the input device 1 in which the rotary movable body 20 that changes the direction of the magnetic field is arranged around the magnetic sensor 30 .
[0074] In addition, although the present embodiment is described above, the present invention is not limited to these examples. For example, in the present embodiment, the operating lever 50 can be supported rotatably with the first rotation axis AX1 and the second rotation axis AX2 as the rotation center, but it can also be a structure that can be supported rotatably with one of the rotation axes as the rotation center. In addition, the technical personnel in this field appropriately add, delete, design and change the components of the above-mentioned embodiments, or appropriately combine the features of the structural examples of each embodiment, which is also included in the scope of the present invention as long as it has the purpose of the present invention.
[0075] Description of symbols
[0076] 1…Input device
[0077] 10…Fixed body
[0078] 11…Housing
[0079] 11h…Open
[0080] 20 ... Rotating movable body (rotating shaft body 21, rotating disk 22)
[0081] 20A…1st rotating movable body
[0082] 20B…Second rotating movable body
[0083] 21…Rotation axis
[0084] 22… Rotating disc
[0085] 22a…concave part
[0086] 22b…Annular concave portion
[0087] 22c…Space Formation
[0088] 25…Sensing unit
[0089] 30…Magnetic sensor
[0090] 31…Sensing block
[0091] 31a ... cylindrical concave portion
[0092] 35…Sensor substrate
[0093] 40… Ring-shaped magnetic parts
[0094] 41…Main body
[0095] 42…1st extension part
[0096] 43…Second extension section
[0097] 50…Operation lever
[0098] 351…Pattern
[0099] 352…terminal
[0100] 401…1st yoke
[0101] 402…Second yoke
[0102] 410…Permanent magnet
[0103] 421…1st front end
[0104] 431…Second front end
[0105] 4011…1st middle section
[0106] 4012…1st bending piece
[0107] 4021…2nd middle section
[0108] 4022…2nd bending piece
[0109] AX…Rotation axis
[0110] AX1…1st rotation axis
[0111] AX2…2nd rotation axis
[0112] D1…Direction 1
[0113] D2…Direction 2
[0114] D3…3rd direction
[0115] S…Severed Space
[0116] θ…Tilting angle
Claims
1. An input device, characterized in that: have: Fixed body; A rotatable movable body supported by the fixed body so as to be rotatable with the first direction as the rotation center; an annular magnetic component, comprising a main body, a first extending portion extending from one end of the main body, and a second extending portion extending from the other end of the main body, a separation space being formed between a first front end portion of the first extending portion and a second front end portion of the second extending portion facing each other along a second direction orthogonal to the first direction, generating a magnetic field from the first front end portion toward the second front end portion, and the annular magnetic component being mounted on the rotating movable body; as well as a magnetic sensor mounted on the fixed body, detecting the direction of the magnetic field emitted from one of the first extending portion and the second extending portion and reaching the other, and detecting the rotation of the rotating movable body; The main body extends in a third direction that is orthogonal to the first direction and the second direction.
2. The input device according to claim 1, wherein: The invention further comprises an operating rod supported by the fixed body so as to be rotatable together with the rotationally movable body with the first direction as a rotation center. The annular magnetic member is disposed at a position away from the operating rod in the first direction. The annular magnetic component includes a permanent magnet, a first yoke and a second yoke, wherein the first yoke has a first base connected to the first front end portion and one pole of the permanent magnet, and the second yoke has a second base connected to the second front end portion and the other pole of the permanent magnet. The first yoke includes a first intermediate portion extending along a surface parallel to the second direction and the third direction, and a first bent piece bent from the first intermediate portion along the first direction toward a direction approaching the operating rod; The second yoke includes a second intermediate portion extending along a surface parallel to the second direction and the third direction, and a second bent piece bent from the second intermediate portion along the first direction toward a direction approaching the operating rod. The permanent magnet is connected to the first bent piece at one pole and connected to the second bent piece at the other pole, and is arranged at a position closer to the operating rod than the first intermediate portion and the second intermediate portion.
3. The input device according to claim 1, wherein: The rotating movable body comprises a rotating shaft body and a rotating disk which rotates in conjunction with the rotating shaft body. The fixed body includes a housing that rotatably supports the rotating shaft body, and a sensing block that is mounted on the housing, rotatably supports the rotating disk, and has the magnetic sensor mounted thereon. The rotating disk is a non-magnetic cylindrical component to which the annular magnetic component is mounted and which is rotatably inserted into a cylindrical recess formed on the sensing block.
Citation Information
Patent Citations
Magnetic type encoder
JP2002181588A
Hall joy stick structure
JP2022166831A