Rotation input device

Abstract

To achieve both of elongating a spring length of a contact spring part, and increasing an area of a fixed electrode.SOLUTION: A rotation input device comprises: a fixed body having a mounting surface; a rotating body which is rotatably supported on the fixed body in an axial direction orthogonal to the mounting surface as a rotation center; a rotating electrode attached to the rotating body; a plurality of fixed electrodes attached at different positions of the fixed body, respectively, along a circumferential direction centering the axial direction; a code plate which is attached to the rotating body, disposed at a position separated in the axial direction from the plurality of fixed electrodes, is always electrically connected to the rotating electrode, and has a code part in which a portion with a conductor and a portion without the conductor appear alternately along the circumferential direction; and a plurality of contact spring parts which are integrally elongated, respectively, from the plurality of fixed electrodes, elastically contact to the code part, and in which an electric connection state with the code plate is switched according to a rotation angle of the rotating body. The contact spring part is elongated toward the code part via a folding part from an end part in the circumferential direction of the fixed electrode.SELECTED DRAWING: Figure 8

Description

[Technical Field]

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

[0002] The following Patent Document 1 discloses a technology in an input device in which the rotating electrode body rotates as the rotating part rotates, and the electrical connection state between the holding electrode body and the rotating electrode body changes, thereby detecting the rotation of the rotating part. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2019 / 098055 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the technology of Patent Document 1, a brush that contacts the rotating electrode body is provided at the middle position of the holding electrode body. Therefore, in the technology of Patent Document 1, if the spring length of the brush is increased, the area of ​​the holding electrode body becomes smaller, making it difficult to stably capture changes in capacitance and stably detect the presence or position of the holding electrode body. Furthermore, in the technology of Patent Document 1, if the area of ​​the holding electrode body is increased, the spring length of the brush cannot be increased. [Means for solving the problem]

[0005] A rotary input device according to one embodiment includes a fixed body having a mounting surface, a rotating body rotatably supported on the fixed body around an axial direction perpendicular to the mounting surface as a center of rotation, a rotating electrode attached to the rotating body, a plurality of fixed electrodes attached to the fixed body at different positions along a circumferential direction centered on the axial direction, a cord plate attached to the rotating body, positioned at a distance from the plurality of fixed electrodes in the axial direction, constantly electrically connected to the rotating electrode, and having a cord portion in which portions with conductors and portions without conductors alternate along the circumferential direction, and a plurality of contact spring portions respectively extending integrally from the plurality of fixed electrodes, elastically contacting the cord portion, and switching the electrical connection state with the cord plate depending on the rotation angle of the rotating body, the contact spring portions extending from the circumferential ends of the fixed electrodes via folded portions toward the cord portion. [Effects of the Invention]

[0006] According to the rotary input device of one embodiment, it is possible to increase the spring length of the contact spring portion and increase the area of ​​the fixed electrode at the same time. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is an external perspective view of a rotary input device according to an embodiment; [Figure 2] 1 is a perspective view of the appearance of a rotary input device (with the rotary operation body separated) according to an embodiment; [Figure 3] FIG. 1 is an exploded perspective view of a rotary input device according to an embodiment, viewed from above; [Figure 4] FIG. 1 is an exploded perspective view of a rotary input device according to an embodiment, viewed from below; [Figure 5] 1 is a cross-sectional view of a rotary input device according to an embodiment; [Figure 6] FIG. 1 is an external perspective view of a fixed body included in a rotary input device according to an embodiment, viewed from above; [Figure 7] 1 is a cross-sectional perspective view of a rotary input device according to an embodiment, taken along a vertical plane and viewed from below; [Figure 8] FIG. 1 is an external perspective view of a fixed electrode included in a rotary input device according to an embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0008] An embodiment will be described below with reference to the drawings. For convenience, in the following description, the Z-axis direction in the drawings is the up-down direction, the Y-axis direction in the drawings is the left-right direction, and the X-axis direction in the drawings is the front-rear direction. However, the positive Z-axis direction is the up direction, the positive Y-axis direction is the right direction, and the positive X-axis direction is the front.

[0009] (Overview of the rotary input device 100) Fig. 1 is a perspective view of the appearance of a rotary input device 100 according to one embodiment. Fig. 2 is a perspective view of the appearance of the rotary input device 100 according to one embodiment (with the rotary operation body 140 separated).

[0010] 1 and 2, the rotary input device 100 has a generally cylindrical outer shape that is thin in the vertical direction (Z-axis direction). In addition, a circular opening 100A that penetrates the rotary input device 100 in the vertical direction (Z-axis direction) is formed in the center of the rotary input device 100 when viewed from above.

[0011] The bottom surface of the fixed body 111 of the rotary input device 100 serves as a mounting surface 111A, and the rotary input device 100 is fixed to the operation surface of the touch panel display by being attached to the operation surface of the touch panel display at the mounting surface 111A using double-sided tape or the like.

[0012] In the rotary input device 100, the annular rotary operation body 140 is supported by the fixed body 111 so as to be rotatable about the center of rotation in the vertical direction (Z-axis direction). This allows the rotary input device 100 to rotate the rotary operation body 140 with the operator's fingers.

[0013] Furthermore, a metallic, annular rotating electrode 141 is provided at the upper end of the rotary operating body 140 along the outer periphery of the rotary operating body 140. The rotary electrode 141 is connected to the code plate 130 by a conductive connection terminal 142. This allows the rotary input device 100 to capacitively couple the finger of an operator operating the rotary operating body 140 with the detection electrodes of the touch panel display via the rotary electrode 141, the code plate 130, and the fixed electrode 150, and allows the rotation of the rotary operating body 140 by the operator's finger to be detected by the detection electrodes of the touch panel display.

[0014] In this way, the rotary input device 100 according to one embodiment detects the rotation operation of the rotary operating body 140 using the detection electrodes of the touch panel display, and therefore the configuration for detecting the rotation operation can be simplified, and in particular, a configuration can be adopted in which no wiring member (e.g., a flexible substrate, etc.) is provided for connecting to the outside.

[0015] Furthermore, the rotary input device 100 according to one embodiment has an opening 100A that penetrates the rotary input device 100 in the vertical direction, so that when the rotary input device 100 is placed on the operating surface of a touch panel display, the area of ​​the touch panel display that overlaps with the opening 100A can be effectively used as a display area.

[0016] (Configuration of the rotary input device 100) Fig. 3 is an exploded perspective view of the rotary input device 100 according to one embodiment, as viewed from above. Fig. 4 is an exploded perspective view of the rotary input device 100 according to one embodiment, as viewed from below. Fig. 5 is a cross-sectional view of the rotary input device 100 according to one embodiment.

[0017] 3 to 5, the rotary input device 100 includes a fixed body 111, a cover 112, a rotary operation body 140, and a rotating disk 120. The rotary operation body 140 and the rotating disk 120 form a rotating body.

[0018] The fixed body 111 is a container-like member having an annular shape when viewed from above and an open top. A circular central opening 111D that penetrates the fixed body 111 in the vertical direction (Z-axis direction) is formed in the center of the fixed body 111 when viewed from above. The fixed body 111 is placed in an internal space 140B of the rotational driver 140, which also has an annular shape. In this case, an inner cylinder portion 140C of the rotational driver 140 is inserted into the central opening 111D of the fixed body 111. As a result, the fixed body 111 supports the rotational driver 140 rotatably around the vertical direction (Z-axis direction).

[0019] The bottom surface of fixed body 111 is a mounting surface 111A, and fixed to the operation surface of the touch panel display by being attached to mounting surface 111A.

[0020] The fixed body 111 has an annular internal space 111B that is open at the top. The internal space 111B houses the rotating disk 120. The upper opening of the internal space 111B is closed by a cover 112. The fixed body 111 is formed, for example, using a relatively hard insulating material (for example, hard resin, etc.).

[0021] A plurality of claws 111C protruding outward are formed on the outer peripheral surface of fixed body 111. When cover 112 is attached to fixed body 111, claws 111C are fitted into openings of hooks 112B of cover 112 (see FIG. 2), thereby hooking on hooks 112B and fixing cover 112 to fixed body 111.

[0022] The internal structure of the internal space 111B of the fixed body 111 will be described later with reference to FIG.

[0023] The cover 112 is a horizontal, flat, resin member having an annular shape when viewed from above. The cover 112 is fixedly attached to the fixed body 111, thereby closing an upper opening of the internal space 111B of the fixed body 111. The cover 112 is formed, for example, by injection molding. When viewed from above, a circular opening 112A is formed in the center of the cover 112, through which the inner cylindrical portion 140C of the rotation driver 140 is inserted.

[0024] Additionally, a plurality of hooks 112B are provided hanging downward on the outer periphery of cover 112. Hooks 112B have rectangular openings into which claws 111C provided on the side surfaces of fixed body 111 are fitted (see FIG. 1). As a result, hooks 112B are hooked onto claws 111C, enabling cover 112 to be fixed to fixed body 111.

[0025] The rotary operating body 140 is a resin member that receives a rotational operation by an operator. The rotary operating body 140 has a thin, generally cylindrical outer shape in the vertical direction (Z-axis direction). That is, the rotary operating body 140 has an annular shape when viewed from above. A circular opening 140A that penetrates the rotary operating body 140 in the vertical direction (Z-axis direction) is formed in the center of the rotary operating body 140 when viewed from above. The rotary operating body 140 also has an annular internal space 140B that is open at the bottom. A fixed body 111 is disposed in the internal space 140B.

[0026] Rotational operation body 140 has a generally cylindrical inner tube portion 140C on the rotation center side of internal space 140B. Inner tube portion 140C of rotational operation body 140 is inserted into central opening 111D of fixed body 111 arranged in internal space 140B and opening 120A of turntable 120 rotatably supported by fixed body 111. As a result, rotational operation body 140 is supported by fixed body 111 so as to be rotatable about the rotation center in the up-down direction (Z-axis direction), and rotational operation body 140 can be performed by the operator's finger.

[0027] The turntable 120 is a horizontal, disk-shaped member made of resin. The turntable 120 is rotatably disposed in the internal space 111B of the fixed body 111. When viewed from above, a circular opening 120A is formed in the center of the turntable 120, penetrating the turntable 120 in the up-and-down direction (Z-axis direction). An inner cylinder portion 140C of the rotary driver 140 is inserted into the opening 120A.

[0028] The turntable 120 also has a first inner wall 121 and a second inner wall 122, both of which are annular and protrude downward along the inner peripheral edge of the turntable 120. The first inner wall 121 is provided on the radially inner side, and the second inner wall 122 is provided on the radially outer side. The radially inner side of the first inner wall 121 is an opening 120A through which the inner cylinder 140C of the rotary driver 140 is inserted. A plurality of cam lobes 122A, each of which is arc-shaped, are provided on the outer peripheral surface of the second inner wall 122 and aligned in the circumferential direction to generate a clicking sensation when the rotary driver 140 is rotated.

[0029] Furthermore, the gap between the first inner wall portion 121 and the second inner wall portion 122 of the rotating disk 120 forms an annular engagement groove 123. The annular inner wall portion 111E of the fixed body 111 is inserted into the engagement groove 123 from below, whereby the rotating disk 120 is rotatably supported by the fixed body 111.

[0030] The turntable 120 has a plurality of engagement protrusions 124 that protrude upward from the upper surface thereof, and each of these engages with a plurality of engagement grooves 143 that are provided on the ceiling surface of the internal space 140B of the rotational operation body 140. As a result, when the rotational operation body 140 is rotated, the turntable 120 rotates integrally with the rotational operation body 140, with the vertical direction (Z-axis direction) as the center of rotation.

[0031] An annular code plate 130 made of a metal plate is provided on the underside of the rotating disk 120. A plurality of openings 131 are provided in the code plate 130 and arranged intermittently along the circumferential direction. As a result, the code plate 130 has a code portion in which portions with conductors (i.e., portions without openings 131) and portions without conductors (i.e., portions with openings 131) appear alternately along the circumferential direction.

[0032] (Internal configuration of the internal space 111B of the fixed body 111) FIG. 6 is an external perspective view of a fixed body 111 included in a rotary input device 100 according to one embodiment, viewed from above.

[0033] As shown in FIG. 6, on the bottom surface 111Ba of the internal space 111B of the fixed body 111, three pressing members 113 are arranged at different positions along the circumferential direction at equal intervals (that is, at intervals of 120°).

[0034] The pressing member 113 is configured to include a metal leaf spring 113A that extends linearly in a tangential direction to the circumference of the internal space 111B, and a resin protrusion 113B provided at the center of the leaf spring 113A. The pressing member 113 is provided facing the inner diameter side so that the tip of the protrusion 113B is pressed against the outer circumferential surface of the second inner wall portion 122 of the turntable 120 by the elastic force of the leaf spring 113A. In addition, both ends of the leaf spring 113A of the pressing member 113 are held by the fixed body 111 so that the protrusion 113B can move in the radial direction following the multiple cam lobes 122A as the leaf spring 113A elastically deforms.

[0035] 6, three fixed electrodes 150 are arranged at equal intervals (i.e., 120° intervals) at different positions along the circumferential direction on the bottom surface 111Ba of the internal space 111B of the fixed body 111. Each of the three fixed electrodes 150 is provided at a position that does not overlap with a pressing member 113 in the circumferential direction, i.e., is provided between two adjacent pressing members 113.

[0036] Each fixed electrode 150 is a member made of a metal plate. Each fixed electrode 150 is provided to extend in the circumferential direction along the bottom surface 111Ba of the internal space 111B of the fixed body 111. Specifically, when viewed from above, each fixed electrode 150 has a counterclockwise end as one end and a clockwise end as the other end, and extends in a curved shape from one end to the other end along the bottom surface 111Ba of the internal space 111B of the fixed body 111.

[0037] Furthermore, each fixed electrode 150 is fixed to the bottom surface 111Ba of the internal space 111B of the fixed body 111 by any fixing means (for example, rivets, etc.).

[0038] Each fixed electrode 150 also has a contact spring portion 151 at the other end (clockwise end). The contact spring portion 151 extends integrally from the fixed electrode 150. The contact spring portion 151 extends so that the height position of the contact portion 151C provided at the tip of the contact spring portion 151 is the highest. The contact portion 151C of the contact spring portion 151 elastically contacts the lower surface of the code plate 130 provided opposite the upper side of the fixed electrode 150. As a result, the electrical connection state of the contact spring portion 151 with the code plate 130 switches depending on the rotation angle of the rotary operation body 140 and the rotary disk 120.

[0039] Each fixed electrode 150 can be capacitively coupled with the operator's finger via the contact spring portion 151, the code plate 130, the connection terminal 142, and the rotating electrode 141. Since each fixed electrode 150 is provided in a position close to the operation surface of the touch panel display, when it is capacitively coupled with the operator's finger, the electrostatic capacitance can be detected by the detection electrode of the touch panel display.

[0040] (Actions of the pressing member 113 and the contact spring portion 151) FIG. 7 is a cross-sectional perspective view of the rotary input device 100 according to one embodiment, taken along a vertical plane and viewed from below.

[0041] 7, in each of the three pressing members 113 provided on the fixed body 111, the tip of the protrusion 113B abuts against the outer peripheral surface of the second inner wall portion 122 of the turntable 120, and the tip of the protrusion 113B slides on the outer peripheral surface of the second inner wall portion 122 of the turntable 120 as the rotary operator 140 and the turntable 120 rotate. At this time, the protrusion 113B moves radially along a plurality of cam lobes 122A provided on the outer peripheral surface of the second inner wall portion 122 while elastically deforming the leaf spring 113A, and when the protrusion 113B fits between two adjacent cam lobes 122A, it suddenly stops the rotation of the rotary operator 140 and the turntable 120. As a result, each of the three pressing members 113 can provide a clicking sensation at predetermined rotation angles (for example, every 12° in this embodiment) in response to the operator's rotation of the rotary operator 140.

[0042] 7, the contact spring portions 151 of the three fixed electrodes 150 provided on the fixed body 111 have contact portions 151C at their tips that are in elastic contact with the underside of the code plate 130, which has a plurality of openings 131 intermittently provided in the circumferential direction, and the contact portions 151C slide along the underside of the code plate 130 as the rotary operator 140, the turntable 120, and the code plate 130 rotate. As a result, the electrical connection state of each contact spring portion 151 with the code plate 130 alternates between a state in which it is electrically connected to the code plate 130 (i.e., a state in which it is elastically connected inside the openings 131) and a state in which it is electrically connected to the code plate 130 (i.e., a state in which it is elastically connected outside the openings 131) depending on the rotation angles of the rotary operator 140 and the turntable 120.

[0043] Since contact spring portion 151 is electrically connected to code plate 130, fixed electrode 150 is electrically connected to rotating electrode 141 via code plate 130 and connection terminal 142, and can be capacitively coupled with an operator's finger that is in contact with rotating electrode 141. As a result, fixed electrode 150 can detect the capacitance of the operator's finger via fixed electrode 150 using a detection electrode provided in a position on the touch panel display opposite fixed electrode 150. Therefore, the touch panel display can detect the rotation direction and rotation angle of the rotation operation by detecting changes in the capacitance of the three fixed electrodes 150 that accompany the rotation operation of rotary operation body 140.

[0044] In particular, in this embodiment, a plurality of openings 131 are formed in the code plate 130 so that at least one of the fixed electrodes 150 is electrically connected to the code plate 130 for all rotation angles every predetermined rotation angle (for example, every 12° in this embodiment). As a result, the rotary input device 100 according to one embodiment can detect the capacitance of the operator's finger by the detection electrode of the touch panel display via at least one of the fixed electrodes 150 for all rotation angles. In other words, the rotary input device 100 according to one embodiment is configured so that there is no rotation angle at which the capacitance of the operator's finger cannot be detected, and therefore, erroneous detection of the rotation operation of the rotary operation body 140 can be suppressed.

[0045] (Configuration of fixed electrode 150) 8 is a perspective view showing the appearance of fixed electrodes 150 included in the rotary input device 100 according to one embodiment. The three fixed electrodes 150 included in the rotary input device 100 are the same as the fixed electrodes 150 shown in FIG.

[0046] As shown in FIG. 8, the fixed electrode 150 is formed using a relatively thin metal plate, and when viewed from above, the counterclockwise end is one end 150A and the clockwise end is the other end 150B, and it extends in a curved shape from one end 150A to the other end 150B so as to follow the bottom surface portion 111Ba of the internal space 111B of the fixed body 111.

[0047] In the example shown in FIG. 8, the fixed electrode 150 has a circular through-hole 150C formed at the midpoint in the extension direction, and can be easily and reliably fixed to the bottom surface 111Ba of the internal space 111B of the fixed body 111 by a rivet or the like passing through the through-hole 150C.

[0048] 8, the fixed electrode 150 has a contact spring portion 151 (a so-called brush) at the other end 150B (the end portion on the clockwise side). The contact spring portion 151 extends integrally from the fixed electrode 150, and a contact portion 151C that elastically contacts the lower surface of the code plate 130 is provided at the tip of the contact spring portion 151.

[0049] As shown in FIG. 8, in the fixed electrode 150 of this embodiment, the contact spring portion 151 extends upward (that is, toward the lower surface of the code plate 130) from the other end 150B via the first folded portion 150D.

[0050] As a result, the fixed electrode 150 of this embodiment does not have a contact spring portion 151 between one end 150A and the other end 150B, which maximizes the area of ​​the fixed electrode 150. Therefore, the change in capacitance can be stably detected by the touch panel display, and the presence or position of the fixed electrode 150 can be stably detected.

[0051] Furthermore, as a result, the fixed electrode 150 of this embodiment can have the contact spring portion 151 stacked on top of the fixed electrode 150, so that the area of ​​the fixed electrode 150 can be maximized while the spring length of the contact spring portion 151 can be made relatively long.

[0052] Therefore, according to the rotary input device 100 according to one embodiment, it is possible to increase the spring length of the contact spring portion 151 and increase the area of ​​the fixed electrode 150 at the same time.

[0053] In particular, as shown in Figure 8, the fixed electrode 150 of this embodiment has a contact spring portion 151 which has a first extension portion 151A extending from one end to the other end via a first folded portion 150D from the other end 150B of the fixed electrode 150 in a direction opposite to the extension direction of the fixed electrode 150 (i.e., counterclockwise), and a second extension portion 151B extending from one end to the other end via a second folded portion 150E from the other end of the first extension portion 151A in a direction opposite to the first extension portion 151A (i.e., clockwise), and the contact portion 151C extends from the other end of the second extension portion 151B.

[0054] As a result, the fixed electrode 150 of this embodiment can increase the spring length of the contact spring portion 151 and can increase the vertical height position of the contact portion 151C. Therefore, with the fixed electrode 150 of this embodiment, even if the fixed electrode 150 is relatively far from the cord plate 130 in the vertical direction, the contact portion 151C can be reliably brought into elastic contact with the underside of the cord plate 130, thereby preventing poor electrical connection between the cord plate 130 and the cord plate 130.

[0055] In one embodiment of the rotary input device 100, as a preferred example, the plurality of fixed electrodes 150 consists of three fixed electrodes 150, which are arranged at 120° intervals around the circumferential direction centered on the vertical direction (Z-axis direction), as shown in Figures 6 and 7.

[0056] As a result, the rotary input device 100 according to the embodiment can maximize the distance between the fixed electrodes 150, thereby enabling stable detection by the plurality of fixed electrodes 150.

[0057] However, the present invention is not limited to this, and the plurality of fixed electrodes 150 may be made up of two or four or more fixed electrodes 150.

[0058] Furthermore, as a modified example of the fixed electrode 150, the fixed electrode 150 may have a first extending portion 151A in which the contact spring portion 151 extends from one end to the other end from the other end 150B of the fixed electrode 150 via a first folded portion 150D in a direction opposite to the extending direction of the fixed electrode 150 (i.e., counterclockwise), and the contact portion 151C may extend from the other end of the first extending portion 151A. In other words, the fixed electrode 150 may not have the second extending portion 151B.

[0059] Even in this case, since the fixed electrode 150 does not have the contact spring portion 151 between one end 150A and the other end 150B, it is possible to maximize the area of ​​the fixed electrode 150. Therefore, the change in capacitance can be stably detected by the touch panel display, and the presence or position of the fixed electrode 150 can be stably detected.

[0060] Even in this case, the fixed electrode 150 can be provided with the contact spring portion 151 stacked on top of the fixed electrode 150, so that the area of ​​the fixed electrode 150 can be maximized while the spring length of the contact spring portion 151 can be made relatively long.

[0061] Although one embodiment of the present invention has been described in detail above, the present invention is not limited to these embodiments, and various modifications and changes are possible within the scope of the gist of the present invention described in the claims. [Explanation of symbols]

[0062] 100 Rotary Input Device 111 Fixed body 111A Mounting surface 111B Interior space 111Ba bottom part 111C Claw part 111D Center opening 112 Cover 112A opening 112B Hook 113 Pressing member 113A Leaf spring 113B Protrusion 120 Rotating Disc (Rotating Body) 120A opening 121 First inner wall 122 Second inner wall 122A Mount Cam 123 Engagement groove 124 Engagement protrusion 130 Code board 131 Opening 140 Rotating operation body (rotating body) 140A opening 140B Internal space 140C Inner cylinder part 141 Rotating electrode 142 connection terminal 143 Engagement groove 150 Fixed electrode 150A one end 150B other end 150C through hole 150D First fold 150E Second fold 151 Contact spring part 151A 1st extension part 151B 2nd extension part 151C Contact part

Claims

1. a fixed body having a mounting surface; a rotating body rotatably supported on the fixed body about a rotation center in an axial direction perpendicular to the mounting surface; a rotating electrode attached to the rotating body; a plurality of fixed electrodes attached to the fixed body at different positions along a circumferential direction centered on the axial direction; a code plate attached to the rotating body, disposed at a position spaced apart from the plurality of fixed electrodes in the axial direction, constantly electrically connected to the rotating electrodes, and having a code portion in which portions with conductors and portions without conductors alternate along the circumferential direction; a plurality of contact spring portions that extend integrally from the plurality of fixed electrodes, elastically contact the code portion, and switch an electrical connection state with the code plate depending on the rotation angle of the rotating body; Equipped with The rotary input device, wherein the contact spring portion extends from an end portion in the circumferential direction of the fixed electrode toward the cord portion via a folded portion.

2. the fixed electrode extends from one end to the other end along the circumferential direction, The contact spring portion is a first extension portion extending from one end to the other end of the fixed electrode via a first folded portion in a direction opposite to the extending direction of the fixed electrode; a second extending portion extending from one end to the other end of the first extending portion via a second folded portion in a direction opposite to the extending direction of the first extending portion; 2. The rotary input device according to claim 1, further comprising a contact portion extending from the other end of the second extension portion.

3. 2. The rotary input device according to claim 1, wherein the plurality of fixed electrodes are three fixed electrodes arranged at intervals of 120 degrees around the axial direction in the circumferential direction.

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