JP5039661B2 - Multi-directional input device - Google Patents

Description

  The present invention relates to a multidirectional input device in which an electrical signal corresponding to a tilting direction and a tilting angle can be taken out by tilting an operation member having a shaft portion extending outward, and in particular, in multiple directions. The present invention relates to a play prevention measure for suppressing the play of the tiltable operation member.

  In this type of multidirectional input device, when an operating force is applied and the shaft portion of the operating member tilts, the driving member driven by the operating member changes its position, and the change in the position of this driving member changes the variable resistor or rotary device. It is detected by detection means such as an encoder. In such a multidirectional input device, the shaft portion of the operation member penetrates through the upper opening of the housing and protrudes outward, and a pair of drive members are engaged with the operation member inside the housing. The operating member is supported so that its shaft portion can be tilted in multiple directions, and the pair of driving members are supported so as to be rotatable with their axial directions orthogonal to each other. In addition, the shaft part of the operating member extends away from the center of tilting, and the part to which the operating force is applied is often far from the center of tilting, so measures to prevent backlash of the shaft part during tilting May be necessary.

  In order to prevent backlash of the operation member in such a multi-directional input device, a pair of upper and lower sliding contact members and a compression coil spring are provided on the shaft portion of the operation member, and both sliding contact members can be moved in the axial direction of the shaft portion. In addition, a structure in which the sliding contact surface of each sliding contact member is elastically contacted with a receiving surface of a different driving member is known (for example, see Patent Document 1). In this conventional example, the slidable contact surface of the upper slidable contact member is composed of an upwardly convex curved surface, and the slidable contact surface of the lower slidable contact member is composed of a downwardly convex curved surface. Between them, a compression coil spring is interposed to elastically urge both sliding members away from each other. In addition, a receiving surface on which the sliding surface of the upper sliding contact member is elastically contacted is provided on the lower surface side of one driving member driven by the operation member, and the receiving surface is formed of a concave curved surface. Similarly, on the upper surface side of the other drive member, a receiving surface is provided in which the sliding contact surface of the lower sliding contact member is elastically contacted, and the receiving surface is also formed of a concave curved surface. As a result, when the operating force is applied and the shaft portion of the operating member tilts, each sliding contact member can be smoothly slid along the receiving surface of the corresponding driving member according to the tilting direction. As a result, the shaft portion of the operation member does not rattle when tilted and the operability is improved.

In the above-described conventional example, electrical signals corresponding to the rotation direction and rotation angle of the pair of drive members that are rotatably supported with their axis directions orthogonal to each other are output from the corresponding variable resistors. Therefore, when the shaft portion of the operation member is tilted in an arbitrary direction, the tilt direction and tilt angle can be detected based on the output value of each variable resistor.
JP 2002-99337 A

  However, in the above-described conventional example, the pair of upper and lower sliding contact members that are externally mounted on the shaft portion of the operation member are brought into elastic contact with different receiving surfaces, and the sliding resistance between each sliding contact member and the receiving surface is low. Since it is difficult to set them to be the same, there is a problem that the sliding resistance differs depending on the tilting direction of the shaft portion, and this is a factor that adversely affects the operation feeling. Further, in such a conventional example, a compression coil spring is interposed between the pair of sliding contact members so that both sliding contact members are elastically biased toward the upper and lower drive members. There was a problem that the overall miniaturization was likely to be hindered.

  The present invention has been made in view of the situation of the prior art as described above, and the object thereof is that the sliding resistance generated when the shaft portion of the operation member is tilted does not vary depending on the tilt direction, and the entire apparatus is An object of the present invention is to provide a multidirectional input device that can be easily downsized.

In order to achieve the above object, the present invention provides a restricting member having a receiving portion provided around an opening, an operating member having a shaft that extends outwardly through the opening, and the shaft. Supporting means for supporting the operating member so as to be tiltable in multiple directions, and a slide that is externally mounted on the shaft portion so as to be movable in the axial direction and slides relative to the receiving portion when the shaft portion is tilted. One surface of the sliding contact member, comprising: a contact member; an urging means for elastically urging the sliding contact member toward the receiving portion; and a detection means for detecting tilting of the shaft portion. The sliding contact surface elastically contacting the receiving portion is formed along a convex spherical surface whose center is the tilting center of the shaft portion, and the distal end side has a smaller diameter than the proximal end side as the biasing means. A compression coil spring wound in a tapered shape is used, and the compression coil spring is connected to the sliding contact portion. It arrange | positions in the storage space provided in the other surface side, While holding the base end part of the said compression coil spring in the flange part provided in the said operation member, it leaves | separates from the said tilting center with the front-end | tip part of the said compression coil spring. The support member is configured to restrict the movement of the sliding contact member elastically biased in a direction, and the support means supports the operation member via a first rotation shaft; And a base that pivotally supports the drive member via a second rotation shaft that is orthogonal to the first rotation axis, and the restriction member is attached to the base. did.

In the multi-directional input device configured as described above, the sliding contact surface of the sliding contact member that is elastically contacted with the receiving portion of the regulating member by the biasing force of the compression coil spring has the tilt center of the shaft portion of the operation member as the spherical center. Since it is formed along the convex spherical surface, the sliding contact member can be smoothly slid along the receiving portion even if the shaft portion tilts in any direction, and play can be prevented. There is no possibility that the sliding resistance between the base and the receiving portion varies depending on the tilting direction. In addition, since the compression coil spring wound in a tapered shape is disposed in the storage space provided on the other side of the sliding contact member (the side opposite to the side on which the sliding contact surface is formed), the entire apparatus It becomes easy to achieve downsizing. The operation member is pivotally supported by the drive member via the first pivot shaft, and the drive member is pivotally supported by the base via a shaft portion whose axis direction is orthogonal to the first pivot shaft. Therefore, a simple structure that supports the operation member so as to be tiltable in multiple directions can be realized. In addition, since the restriction member can be attached to the base after the compression coil spring and the sliding contact member are externally mounted on the shaft portion of the operation member assembled to the base, the assemblability is improved.

In the above configuration, the housing further includes a housing for accommodating the base, and an upper opening is provided in the upper lid portion of the housing so as to face the opening of the regulating member and penetrate the shaft portion of the operation member. When the member is sandwiched between the upper lid portion of the housing and the base, the restricting member can be easily fixed to the base without using a mounting screw or the like, so that the assemblability is further improved. In this case, if the pair of positioning protrusions provided on the restriction member are inserted into the pair of positioning holes provided on the base side, the work of positioning and attaching the restriction member to the base is extremely easy. Can be done.

  In the multidirectional input device of the present invention, the compression coil spring held by the flange portion of the operation member elastically biases the sliding contact member that is externally mounted on the shaft portion, and the sliding contact surface of the sliding contact member is Since the sliding contact surface of the sliding contact member is formed along a convex spherical surface having the center of tilting of the shaft portion as a spherical center, the shaft portion tilts in any direction. The sliding contact member can be smoothly slid along the receiving portion to prevent backlash, and there is no possibility that the sliding resistance between the sliding contact surface and the receiving portion varies depending on the tilting direction. In addition, since the compression coil spring wound in a tapered shape is disposed in the storage space provided in the sliding contact member, the entire apparatus can be easily downsized.

  An embodiment of the invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of a multidirectional input device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the multidirectional input device, and FIG. FIG. 4 is a plan view of the main body portion excluding the housing of the multidirectional input device, FIG. 5 is a plan view of the main body portion, FIG. 5 is a cross-sectional view taken along the line AA in FIG. FIG. 7 is a cross-sectional view taken along line B, and FIG. 7 is an exploded perspective view showing a main part of each member disposed in the vicinity of the operation lever in the multidirectional input device. However, the rotary motor is not shown in FIG.

  The multi-directional input device shown in these drawings is a vehicle-mounted force sense input device that is installed in a center console of an automobile and the like, and an electrically controlled force sense is imparted to the control lever 1. An input operation can be performed by tilting one operation shaft portion 1a. Such a force sense imparting type input device consolidates the function adjustments of in-vehicle control devices such as an air conditioner, audio, navigation, etc. into one operation lever 1, and performs device selection, function adjustment, etc. by manual operation of the operation lever 1. With a force feedback function, the operation feeling is improved and the desired operation can be surely performed by applying an external force such as resistance or thrust according to the operation amount and operation direction of the operation lever 1. It is an input device.

  The multidirectional input device according to the present embodiment is mounted on a mother board 110 inside a housing 100 in which a main body portion is a combination of an upper case 101 and a lower case 102, and the operation shaft of the operation lever 1 is The part 1a penetrates the upper opening 101b provided in the upper cover part 101a of the upper case 101 and protrudes upward. The main body portion of the multidirectional input device includes a base 3 erected on the circuit board 2 and first and second shafts that are pivotally supported by the base 3 so as to be orthogonal to each other. Drive levers 4, 5, the operation lever 1 supported by the base 3 through the second drive lever 5 so as to be tiltable, and the circuit board 2 mounted so that the rotation shafts 6 a, 7 a are orthogonal to each other. The first and second rotary motors 6 and 7, the rotary encoders 8 and 9 and the photo interrupters 10 and 11 mounted on the circuit board 2, and a control unit (not shown) are schematically configured. . When the operation lever 1 is tilted in an arbitrary direction, the drive lever 4 and the drive lever 5 are rotationally driven by the operation force applied to the operation lever 1.

  The operation lever 1 has an operation shaft portion 1a extending upward from the tilt center C (see FIG. 5) and a drive shaft portion 1b extending downward from the tilt center C. An operation knob (not shown) is fixed to the upper end portion of the operation shaft portion 1 a protruding above the housing 100. A flange member 12 having a tapered surface 12a is fitted on the operation shaft portion 1a, and a coil spring 14 wound in a tapered shape along the tapered surface 12a is mounted on the flange member 12. The coil spring 14 is interposed in a compressed state between the annular inner bottom surface of the flange member 12 and the inner wall upper surface of the dome-shaped sliding contact member 13, and the coil spring 14 is disposed on the lower surface side of the sliding contact member 13. A frustoconical storage space 13a is formed. Further, the upper surface side of the sliding contact member 13 is a sliding contact surface 13b that elastically contacts the receiving surface 15a of the regulating member 15 fixed to the base 3 via the mounting member 16, and with the tilting of the operation lever 1. The sliding contact member 13 slides with respect to the receiving surface 15a. Here, the slidable contact surface 13b of the slidable contact member 13 is formed along a convex spherical surface whose center is the tilting center C of the operation lever 1, and the receiving surface 15a has the same radius of curvature as the slidable contact surface 13b. It is formed along the concave spherical surface. Further, the sliding contact member 13 is formed with a central hole 13c through which the operation shaft portion 1a passes. All of the flange member 12, the coil spring 14, and the sliding contact member 13 are assembled by being externally attached to the operation shaft portion 1a from above. The coil spring 14 is a base end portion where the lower large-diameter portion is held by the flange member 12. The upper end of the coil spring 14 is always elastically biased in the direction away from the tilting center C along the operation shaft portion 1a, but the sliding contact member 13 moves in this direction. Is regulated by a regulating member 15 fixed to the base 3.

  On the other hand, the drive shaft portion 1 b of the operation lever 1 is inserted through the long hole 4 a of the first drive lever 4. A lever shaft 17 serving as a rotation shaft is inserted in a slightly wide central portion of the operation lever 1, and the operation lever 1 is pivotally supported by the second drive lever 5 via the lever shaft 17. Yes.

  The base 3 is obtained by integrating two support plates 31 and 32 via a connecting plate 33 and a spacer 34. One support plate 31 is an L-shaped metal plate in plan view, and the other support plate 32 is a W-shaped metal plate in plan view. Both the support plates 31 and 32 are arranged so as to face each other and are firmly connected by caulking and fixing the connection plates 33 at both ends. Further, the spacing between the support plates 31 and 32 is precisely defined by the spacer 34 fixed using the screw member 35. Attachment members 16 each having a positioning hole 16a are fitted into two opposite corners of the base 3.

  The regulating member 15 is provided with a circular opening 15b that exposes the upper portion of the sliding contact member 13, and the inner wall of the peripheral edge of the opening 15b serves as a receiving surface 15a. The opening 15b is exposed in the upper opening 101b of the upper case 101, and the operation shaft portion 1a passes through the opening 15b, the central hole 13c, and the upper opening 101b. Further, the regulating member 15 is provided with a pair of extending portions 15c protruding in the opposite direction across the opening 15b, and positioning protrusions 15d are suspended from the extending portions 15c. As shown in FIG. 2, the pair of positioning protrusions 15 d are inserted into the positioning holes 16 a of the pair of attachment members 16 fitted to the base 3. In addition, each extending portion 15 c is sandwiched between each mounting member 16 and the upper lid portion 101 a of the upper case 101.

  The first drive lever 4 is provided with a pair of opposed shaft portions 41, a frame-shaped portion 42 having a long hole 4a, and a tooth portion 4b protruding from one side wall standing from the frame-shaped portion 42. The gear part 43 which has is provided (refer FIG. 7). An L-shaped detection plate 44 is fixed to the other side wall that stands up from the frame-shaped portion 42. Each shaft portion 41 is rotatably attached to the upper end portion of the base 3 via a bearing member 45, and the axis of these shaft portions 41 is set parallel to the axis of the lever shaft 17 and the longitudinal direction of the long hole 4a. Has been. The first drive lever 4 is driven to rotate by the drive shaft portion 1b when the operation shaft portion 1a is tilted in a direction crossing the axis of the shaft portion 41. The detection plate 44 passes through the recess 10a of the photo interrupter 10 as the first drive lever 4 is driven to rotate.

  Further, the leaf spring 18 having the tongue-like portion 18 a is attached to the frame-like portion 42 of the first drive lever 4. When this leaf spring 18 is attached to the frame-like portion 42, the tongue-like portion 18a is set so as to elastically contact the drive shaft portion 1b of the operating lever 1, so that the drive shaft portion 1b is one side surface of the inner wall of the long hole 4a. Is pressed lightly. The leaf spring 18 is provided to prevent backlash between the drive shaft portion 1b and the inner wall of the long hole 4a.

  The second drive lever 5 includes a pair of opposed shaft portions 51, a holding portion 52 that pivotally supports the operation lever 1 via the lever shaft 17, and a protrusion on one side of the holding portion 52. The gear part 53 which is provided and has the tooth | gear part 5a at the front-end | tip is provided (refer FIG. 7). An L-shaped detection plate 54 is fixed to the other side portion of the holding portion 52. Each shaft portion 51 is rotatably attached to the upper end portion of the base 3 via a bearing member 55, and the axis of these shaft portions 51 is orthogonal to the axis of the first drive lever 4 and the axis of the lever shaft 17. The orientation is set. The second drive lever 5 is driven to rotate by the operation lever 1 when the operation shaft portion 1a is tilted in a direction crossing the axis of the shaft portion 51. That is, the first and second drive levers 4 and 5 are pivotally supported on the base 3 in an arrangement in which the axial directions of the first and second drive levers 4 and 5 are orthogonal to each other, and the operation lever 1 is moved in multiple directions via the second drive lever 5. It is supported by the base 3 so that it can tilt. The detection plate 54 passes through the concave portion 11a of the photo interrupter 11 as the second drive lever 5 is driven to rotate.

  The rotary motors 6 and 7 are mounted on the circuit board 2 in an arrangement in which the rotary shafts 6a and 7a are orthogonal to each other. The rotary shaft 6a of the first rotary motor 6 is connected to the central portion of the code plate 81 of the rotary encoder 8, and the rotary shaft 6a and the code plate 81 rotate integrally. Further, when an operating force for rotating the first drive lever 4 is applied, the rotary shaft 6 a is rotationally driven via the gear portion 43. Similarly, the rotary shaft 7a of the second rotary motor 7 is connected to the central portion of the code plate 91 of the rotary encoder 9, and the rotary shaft 7a and the code plate 91 rotate integrally with the second drive. When an operating force for rotating the lever 5 is applied, the rotating shaft 7 a is driven to rotate through the gear portion 53.

  The rotary encoder 8 includes the above-described code plate 81 and a photo interrupter 82 mounted on the circuit board 2, and a part of the code plate 81 is disposed in the recess 82 a of the photo interrupter 82. The photo interrupter 82 is provided with an LED (light emitting element) and a phototransistor (light receiving element) (not shown) that are opposed to each other through the recess 82a, so that rotation information of the code plate 81 can be detected. Similarly, the rotary encoder 9 is composed of the above-described code plate 91 and the photo interrupter 92 mounted on the circuit board 2, and a part of the code plate 91 is disposed in the recess 92 a of the photo interrupter 92. The photo interrupter 92 can detect rotation information of the code plate 91.

  The photo interrupter 10 is provided with an LED and a phototransistor (not shown) that are opposed to each other through a recess 10a. The photo interrupter 10 outputs an ON signal when the detection plate 44 of the first drive lever 4 is in a position away from the recess 10 a, but the detection plate 44 is recessed as the first drive lever 4 rotates. If it enters into 10a, since the light of LED will be shielded, an OFF signal will be outputted. Similarly, the photo interrupter 11 outputs an on signal when the detection plate 54 of the second drive lever 5 is in a position away from the recess 11a, and outputs an off signal when the detection plate 54 enters the recess 11a. . Signals output from the photo interrupters 10 and 11 are taken into a control unit (not shown) so that the reference positions of the drive levers 4 and 5 are calculated. Further, the control unit receives the signals detected by the photo interrupters 82 and 92 of the rotary encoders 8 and 9, and calculates the rotation direction and the rotation amount of the drive levers 4 and 5 from the reference position. ing.

  The control unit outputs a control signal determined based on data or a program stored in the memory to the rotary motors 6 and 7. This control signal is a signal corresponding to the operation feeling given to the operation lever 1, and the type of the signal includes generation of vibration, change of operating force (resistance force or thrust force), and the like. The circuit components of the control unit are mounted on the bottom surface of the circuit board 2 and the mother board 110.

  Next, the operation of the multidirectional input device configured as described above will be described. First, when the system of the multidirectional input device is activated (powered on), the control unit takes in the detection signals of the photointerrupters 10 and 11 and outputs control signals to the rotary motors 6 and 7. 7 rotates the drive levers 4 and 5 to automatically return the operation lever 1 to the neutral position. In this case, the rotary motors 6 and 7 may drive the drive levers 4 and 5 so that the outputs of the photo interrupters 10 and 11 are switched from off to on, and the operation lever 1 outputs both the photo interrupters 10 and 11 together. The neutral position is reached when switching from off to on.

  When the operator tilts the operation lever 1 in an arbitrary direction with the operation lever 1 automatically returned to the neutral position in this way, the first drive lever 4 and the second drive lever 5 are operated according to the tilt direction. The lever 1 is driven to rotate. Then, the code plate 81 rotates in conjunction with the first drive lever 4 that rotates about the shaft portion 41, and the code plate 91 rotates in conjunction with the second drive lever 5 that rotates about the shaft portion 51. Therefore, the rotation information of the code plates 81 and 91 is detected by the photo interrupters 82 and 92 of the rotary encoders 8 and 9, and the signals are taken into the control unit.

  Based on the detection signals of the photo interrupters 10 and 11 and the detection signals of the photo interrupters 82 and 92, the control unit calculates the rotation direction and the rotation amount of the drive levers 4 and 5, and applies predetermined values to the rotation motors 6 and 7. Output a control signal. As an example, when the operating lever 1 is tilted by a predetermined amount in a predetermined direction, the rotational driving force based on the control signal is transmitted from the rotary motors 6 and 7 to the driving levers 4 and 5, and these driving levers When an operating force against the tilting operation is applied to the operation lever 1 via 4 and 5, this operating force is recognized as a click feeling by an operator who manually operates the operation lever 1.

  As described above, in the multidirectional input device according to this embodiment, the sliding contact surface 13b of the sliding contact member 13 that is in elastic contact with the receiving surface 15a of the regulating member 15 by the biasing force of the coil spring 14 is tilted by the operating lever 1. Since the center C is formed along the convex spherical surface and the receiving surface 15a is also formed along the concave spherical surface having the same radius of curvature as the sliding contact surface 13b, the operation shaft portion 1a is in any direction. Even when tilted to the right, the sliding contact member 13 can be smoothly slid along the receiving surface 15a. Therefore, there is no possibility that the operation shaft portion 1a is rattled during the tilting operation, and there is no possibility that the sliding resistance between the sliding contact surface 13b and the receiving surface 15a varies depending on the tilting direction. Further, since the coil spring 14 wound in a tapered shape is disposed in the storage space 13a provided on the lower surface side of the sliding contact member 13, the entire apparatus can be easily downsized.

  In the multidirectional input device according to the present embodiment, the operation lever 1 is pivotally supported by the second drive lever 5 via the lever shaft 17, and the lever shaft 17 and the axial direction are orthogonal to each other. Since the second drive lever 5 is pivotally supported by the base 3 via the shaft portion 51, a simple structure for supporting the operation lever 1 so as to be tiltable in multiple directions is realized. Further, in this multidirectional input device, after assembling the coil spring 14 and the sliding contact member 13 on the operation shaft portion 1 a of the operation lever 1 assembled to the base 3, the positioning protrusion 15 d is positioned to the mounting member 16. The restriction member 15 can be easily attached to the base 3 by being inserted into the hole 16a. Moreover, since the restricting member 15 is sandwiched between the upper lid portion 101a of the upper case 101 and the attaching member 16 fitted to the base 3, the restricting member 15 can be easily used without using an attaching screw or the like. Can be fixed to the base 3 and the assemblability is good.

  In the above embodiment, the flange member 12 that holds the coil spring 14 is retrofitted to the operation shaft portion 1a. However, the coil spring 14 is held by a flange portion that is formed integrally with the operation shaft portion 1a. May be. In the above embodiment, the receiving surface 15a is configured to come into surface contact with the slidable contact surface 13b. However, the slidable contact surface 13b is brought into line contact with an appropriately shaped receiving portion provided on the inner wall of the regulating member 15. Alternatively, a configuration in which point contact is made may be used. Furthermore, it is also possible to apply the present invention to the same anti-backlash measures in a multidirectional input device other than the force sense input device.

1 is an exploded perspective view of a multidirectional input device according to an embodiment of the present invention. It is sectional drawing of this multidirectional input device. It is an external view which shows the main-body part except the housing | casing etc. of this multidirectional input device. It is a top view of this main-body part. It is sectional drawing which follows the AA line of FIG. It is sectional drawing which follows the BB line of FIG. It is a principal part disassembled perspective view which shows each member arrange | positioned in the vicinity of an operation lever with this multidirectional input device.

Explanation of symbols

1 Operation lever 1a Operation shaft (shaft)
2 Circuit board 3 Base 4 First drive lever 5 Second drive lever (drive member)
6, 7 Rotating motor 8, 9 Rotary encoder 10, 11 Photo interrupter 12 Flange member (flange part)
13 Sliding member 13a Storage space 13b Sliding surface 14 Coil spring (compression coil spring)
15 Control member 15a Receiving surface (receiving portion)
15b Opening 15d Positioning projection 16 Mounting member 16a Positioning hole 17 Lever shaft (first rotation shaft)
51 Shaft (second rotating shaft)
DESCRIPTION OF SYMBOLS 100 Case 101a Top cover part 101b Upper opening 110 Mother board C Tilt center

Claims (3)

A regulating member provided with a receiving portion around the opening, an operating member having a shaft extending through the opening and extending outward, and the operating member so that the shaft can tilt in multiple directions Supporting means for supporting the shaft, a sliding contact member which is externally mounted on the shaft portion so as to be movable in the axial direction, and slides against the receiving portion when the shaft portion is tilted, and the sliding contact member is attached to the receiving portion. A multi-directional input device comprising an urging means for elastically urging the detection unit and a detection means for detecting tilting of the shaft part,
A slidable contact surface that elastically contacts the receiving portion on one surface of the slidable contact member is formed along a convex spherical surface having the center of tilting of the shaft portion as a sphere, and the distal end side is a proximal end as the urging means A flange portion provided in the operation member by using a compression coil spring wound in a tapered shape having a smaller diameter than the side, and arranging the compression coil spring in a storage space provided on the other surface side of the sliding contact member The base end of the compression coil spring is held by the front end of the compression coil spring, and the receiving portion restricts the movement of the sliding contact member that is elastically biased away from the tilt center by the tip end of the compression coil spring. The support means includes a drive member that pivotally supports the operation member via a first rotation shaft, and a second rotation shaft whose axial direction is orthogonal to the first rotation shaft. A base that pivotally supports the drive member, and the restriction member is attached to the base. Multidirectional input device, characterized in that attached. 2. The control device according to claim 1, further comprising: a housing that houses the base , wherein an upper opening that penetrates the shaft portion is provided in an upper lid portion of the housing so as to face the opening portion, and the restriction member Is sandwiched between the upper lid portion and the base . 3. The multidirectional input device according to claim 2, wherein a pair of positioning protrusions provided on the restriction member are inserted into a pair of positioning holes provided on the base side .

Images