Operator and electronic musical instrument

Abstract

To provide a manipulator that is less likely to be damaged or dropped even if an excessive load is applied from the outside and an electronic musical instrument including such a manipulator.SOLUTION: A pitch bender 40 fixed to an internal frame 37 of a left case 36 includes a rotatable variable resistor 41, an operation wheel 44 attached to the variable resistor 41 so as to be rotationally operatable, and a fixing metal fitting 42 for fixing the variable resistor 41 to the internal frame 37. The fixing metal fitting 42 has a resistor fixing portion 42b2 that is connected to the variable resistor 41 and has flexibility. When an abnormal load is applied to a part of the operation wheel 44, the resistor fixing portion 42b2 bends according to the load, and the load is dispersed.SELECTED DRAWING: Figure 10

Description

Technical Field

[0001] The present invention relates to an operator and an electronic musical instrument.

Background Art

[0002] Conventionally, in electronic musical instruments such as electronic pianos, there is known an instrument provided with an operator for imparting a performance effect such as pitch bend to musical sounds, and the operator is fixed to the housing of the electronic musical instrument via a fixing member. For example, Patent Document 1 discloses an electronic keyboard instrument provided with a multifunctional operation wheel (operator) having a rotary variable resistor. In this electronic keyboard instrument, the variable resistor of the multifunctional operation wheel is fixed to a part of the case of the electronic keyboard instrument via a bracket.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In an electronic musical instrument provided with an operator, in order to enable the operator to be operated by a performer, a part of the operator is exposed from the case of the electronic keyboard instrument. A part of the operator exposed from the case in this way is liable to receive an impact from the outside or the like. In a configuration in which the operator is fixed to a part of the housing via a fixing member as in the electronic keyboard instrument of Patent Document 1, when an excessive load is applied to a part of the operator exposed from the housing due to an impact from the outside or the like, the load concentrates on each member constituting the operator, and there is a risk that each member constituting the operator may be damaged or detached.

[0005] An object of the present invention is to provide an operator that is less likely to be damaged or detached even when an excessive load is applied from the outside, and an electronic musical instrument provided with such an operator.

Means for Solving the Problems

[0006] An operator according to one aspect of the present invention includes a rotatable shaft portion and, A torsion spring having a coil spring portion and a pair of biasing portions, is rotatably attached to the shaft portion, and A spring fixing portion for fixing the coil spring portion projects in the axial direction of the shaft portion Spring fixing portion an operation portion having, and when the operation portion is tilted in a direction orthogonal to the shaft portion, A holding member having a side plate portion provided at the tip so as to hold the position of the torsion spring, in the direction, the Spring fixing portion of the operation portion is supported, and when the operation portion is not tilted in the direction, in the direction, the Spring fixing portion a support portion having a gap with The spring fixing portion is provided with a first spring contact portion that is biased by the pair of biasing portions by coming into contact with the pair of biasing portions, and the side plate portion is provided with a second spring contact portion that is biased by the pair of biasing portions by coming into contact with the pair of biasing portions. When the operation portion is rotationally operated, it further includes an overhanging portion that sandwiches one or the other of the pair of biasing portions and indirectly contacts the second spring contact portion. and, comprising

Figure 1

Advantages of the Invention

[0007] According to the present invention, it is possible to provide an operator in which breakage, dropping, etc. are unlikely to occur even when an excessive load is applied from the outside, and an electronic musical instrument including such an operator.

Brief Description of the Drawings

[0008]

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0009] Embodiments of the present invention will be described with reference to the drawings. An electronic keyboard musical instrument (electronic musical instrument) 10 shown in FIG. 1 includes a keyboard section 20 having a plurality of white keys and a plurality of black keys, and a case (device) 30. A control board (not shown) and the like are housed inside the case 30. Coordinate axes are shown in each figure. Hereinafter, the X-axis direction in each figure is the left-right direction of the electronic keyboard musical instrument 10 (the positive X-axis direction is the left direction), the Y-axis direction in each figure is the front-back direction of the electronic keyboard musical instrument 10 (the positive Y-axis direction is the front direction), and the Z-axis direction in each figure is the up-down direction of the electronic keyboard musical instrument 10 (the positive Z-axis direction is the up direction) for explanation.

[0010] The case 30 is horizontally long rectangular with the longitudinal direction being the left - right direction, made of synthetic resin, and is divided into an upper case 32, a lower case 34, a left case 36, and a right case 38. A dial 12 for controlling the volume of the music sound is provided on a part of the upper surface of the upper case 32. As shown in FIG. 2, the left case 36 has an upper surface panel (panel member) 36a constituting its upper surface and a case side wall 36b constituting its side wall. An operation opening (opening) 36a1 is provided in the front - side portion of the upper surface panel 36a, through which a part (operation wheel 44 described later) of a pitch bender (operator) 40 for applying and controlling pitch bend to the music sound is exposed. In the rear - side portion of the upper surface panel 36a, a light - emitting button 14 for starting or stopping the light emission of each of the LEDs 43a - 43c (see FIG. 6 etc.) provided on the pitch bender 40 and a setting button 16 for various settings are provided. Also, an earphone jack 18 is provided on the front surface of the case side wall 36b.

[0011] On the inner - surface side of the left case 36, an internal frame (frame member) 37, which is a frame - shaped member, is provided. Inside the internal frame 37, a first substrate 37a for receiving the pressing operations of the light - emitting button 14 and the setting button 16, etc., a second substrate 37b for receiving the insertion and removal operations of the earphone jack 18, and a pitch bender 40, etc. are attached. The pitch bender 40 is housed on the inner - surface side of the left case 36 with a part of it exposed from the operation opening 36a1 and is fixed inside the internal frame 37 by a first fixing screw S1 and a second fixing screw S2 (see FIG. 3). Between the first substrate 37a and the second substrate 37b, and between the first substrate 37a and the pitch bender 40, they are electrically connected by connection wirings (not shown). Also, the first substrate 37a and the second substrate 37b are electrically connected to the control substrate of the electronic keyboard instrument 10 by connection wirings (not shown).

[0012] The configuration of the pitch bender 40 will be described in detail. As shown in FIGS. 4 to 6, the pitch bender 40 includes a variable resistor (with a shaft portion) 41, a fixing bracket (fixing portion) 42, a light source substrate 43, an operation wheel (operation portion) 44, a torsion spring 45, and a holding member (holding portion) 46. The operation wheel 44 has a substantially disc shape and includes a wheel member 47, a light guide member 48, and a double-sided tape 49 for bonding between the wheel member 47 and the light guide member 48 (see FIG. 5). The upper portion of the operation wheel 44 is exposed from the operation opening 36a1 of the left case 36.

[0013] The variable resistor 41 is a rotatable rotary variable resistor and has a sensor front portion 41a, a sensor rear portion 41b, a shaft-like portion 41c, and three wiring connection portions 41d extending from the lower side of the sensor front portion 41a. The sensor front portion 41a has a substantially cylindrical shape, and the sensor rear portion 41b has a substantially cylindrical shape that is thinner than the sensor front portion 41a and protrudes leftward from the left side of the sensor front portion 41a. The sensor front portion 41a and the sensor rear portion 41b constitute a rotation angle sensor.

[0014] The shaft-like portion 41c extends axially along the left-right direction, and the right end portion is inserted into the inside of the cylinder of the sensor rear portion 41b and is rotatable around its axis. The cross section of the portion of the shaft-like portion 41c exposed from the sensor rear portion 41b is substantially semi-circular except in the vicinity of the boundary portion with the sensor rear portion 41b. A connection wiring connected to the first substrate 37a is connected to each wiring connection portion 41d. The variable resistor 41 detects the rotation angle of the shaft-like portion 41c from the resistance value that changes according to the rotation of the shaft-like portion 41c in the sensor front portion 41a and the sensor rear portion 41b, converts the rotation angle into an electrical signal, and outputs it to the first substrate 37a via the connection wiring.

[0015] The fixing fitting 42 is a fitting for fixing the respective members constituting the pitch bender 40 to each other and for fixing the pitch bender 40 to the inner frame 37, and its cross section is substantially L-shaped. The fixing fitting 42 has a flat plate portion 42a arranged in a posture with both plate surfaces facing in the vertical direction, and a standing wall portion 42b that rises flat from the right end portion of the flat plate portion 42a with both plate surfaces facing in the horizontal direction. Further, the fixing fitting 42 has a first screwing portion 42c provided with a screw hole extending downward from a part of the left end portion of the flat plate portion 42a, and a second screwing portion 42d provided with screw holes extending flatly to the right from both the front and rear sides of the rising tip portion of the standing wall portion 42b.

[0016] The first screwing portion 42c is brought into contact with the inner side surface of the inner frame 37, and the first fixing screw S1 is inserted through the screw hole thereof along the horizontal direction. The second screwing portion 42d is brought into contact with the inner upper surface of the inner frame 37, and the second fixing screw S2 is inserted through the screw hole thereof along the vertical direction. In this way, the fixing fitting 42 is firmly fixed to the inner frame 37 by screwing the first screwing portion 42c and the second screwing portion 42d to the inside of the inner frame 37 with the first fixing screw S1 and the second fixing screw S2 respectively.

[0017] Inside the standing wall portion 42b where both second screwing portions 42d extend, a pair of slits 42b1 that open upward (in a direction orthogonal to the axial direction of the shaft portion 41c) and extend along the vertical direction are provided up to the vicinity of the flat plate portion 42a. Inside both slits 42b1, a flat resistance fixing portion (flexible portion) 42b2 that extends above both second screwing portions 42d is provided. In other words, a pair of slits 42b1 are provided on both the front and rear sides of the resistance fixing portion 42b2.

[0018] In a portion of the resistance fixing portion 42b2 that is located above both the second screwing portions 42d, a fixing opening 42b3 is provided that is circularly opened and through which the sensor rear portion 41b of the variable resistor 41 is inserted. The variable resistor 41 is connected to the resistance fixing portion 42b2 by being bolted with the sensor rear portion 41b inserted through the fixing opening 42b3. The resistance fixing portion 42b2 has flexibility in the left-right direction (axial direction of the shaft-like portion 41c) compared to other portions of the fixing bracket 42 in a state where the fixing bracket 42 is fixed to the inner frame 37 because slits 42b1 are provided on both sides thereof.

[0019] The light source substrate 43 is a flat printed circuit board arranged with both board surfaces facing in the vertical direction. The light source substrate 43 is arranged on the flat plate portion 42a of the fixing bracket 42 and fixed to the flat plate portion 42a by screwing. On the light source substrate 43, three LEDs (light source portions) 43a, 43b, 43c that emit light in different wavelength bands are provided. Each of the LEDs 43a to 43c is linearly arranged at equal intervals along the front-rear direction and emits light upward from the light source substrate 43. Further, a substantially rectangular parallelepiped light source connection portion 43d is provided on the lower surface of the light source substrate 43 (see FIG. 3). A connection wiring extending from the first substrate 37a side is connected to the light source connection portion 43d. An insulating plate IP for insulating between the two is sandwiched between the flat plate portion 42a of the fixing bracket 42 and the light source substrate 43.

[0020] The operation wheel 44 is attached to the shaft-like portion 41c of the variable resistor 41 and rotates around the axis of the shaft-like portion 41c together with the shaft-like portion 41c. A part of the upper surface of the operation wheel 44 is provided with an operation recess 44a that is recessed in a substantially arc shape. The operation recess 44a is exposed from the operation opening 36a1 of the left case 36 and is provided so that it is easy to perform a rotation operation by placing a finger or the like when the operator rotates the operation wheel 44. As shown in FIG. 7, the operation wheel 44 has an initial state P0 in which the operation recess 44a is directed vertically upward, and can be rotationally operated within a range including a first state P1 in which it is rotated 45 degrees forward around the axis of the shaft-like portion 41c from the initial state P0 and a second state P2 in which it is rotated 45 degrees backward.

[0021] The wheel member 47 of the operation wheel 44 is made of synthetic resin and is a substantially fan-shaped plate member with approximately one-fourth of a circle missing in the lower part. An outer wall portion 47a that slightly extends wall-like toward the right is provided at a portion of the edge of the wheel member 47 excluding the lower part (see FIG. 5). At the center in the front-rear direction of the upper part of the outer wall portion 47a, a wheel-side recess 47a1 that is arcuately recessed and constitutes a part of the operation recess 44a is provided. At a substantially central portion of the wheel member 47, a wheel-side through hole 47b that opens in a substantially semi-circular shape along the cross-sectional shape of the shaft portion 41c and penetrates in the left-right direction is provided. The wheel member 47 is fixed to the shaft portion 41c by inserting the shaft portion 41c through the wheel-side through hole 47b.

[0022] Further, a wheel-side protruding portion 47c that protrudes leftward is provided around the wheel-side through hole 47b on the left side plate surface of the wheel member 47. The wheel-side protruding portion 47c is provided in a substantially L-shape when viewed from the left so that the wheel-side through hole 47b is hidden when the wheel member 47 is viewed from above. Also, a spring fixing portion 47d that protrudes substantially cylindrically leftward is provided on the left side plate surface of the wheel member 47 (see FIG. 5). The above-described wheel-side through hole 47b is provided so as to penetrate inside the spring fixing portion 47d. Below the spring fixing portion 47d, a first spring contact portion 47e that protrudes substantially flatly leftward with both plate surfaces facing in the up-down direction is provided. The plate surface of the first spring contact portion 47e is gently curved so as to be convex downward.

[0023] The light guide member 48 of the operation wheel 44 has a substantially disc shape and is provided with a material having excellent light transmittance (for example, acrylic resin). As shown in FIG. 7, the light guide member 48 is disposed above the light source substrate 43 with a slight gap provided between each of the LEDs 43a to 43c, and guides the light emitted from each of the LEDs 43a to 43c upward. The light guide member 48 is attached to the plate surface on the inner side of the outer wall portion 47a of the wheel member 47 via a double-sided tape 49 on the left side plate surface thereof, and rotates around the axis of the shaft-shaped portion 41c together with the wheel member 47. A tape-side through hole 49a through which the shaft-shaped portion 41c is inserted is provided at a substantially central portion of the double-sided tape 49. In this way, the wheel member 47 is disposed on one plate surface side of the light guide member 48 to support the light guide member 48.

[0024] At the edge 48a of the light guide member 48, a light guide-side recess 48a1 that is substantially arc-shaped and recessed in substantially the same shape as the wheel-side recess 47a1 is provided at the center in the front-rear direction of the upper portion thereof, and constitutes a part of the operation recess 44a. A light guide-side through hole 48b penetrating in the left-right direction is provided at a substantially central portion of the light guide member 48. The shaft-shaped portion 41c is inserted through the light guide-side through hole 48b of the light guide member 48, and the light guide member 48 rotates around the axis of the shaft-shaped portion 41c together with the wheel member 47. A light guide-side protruding portion 48c protruding to the right is provided around the light guide-side through hole 48b on the right side plate surface of the light guide member 48. The light guide-side protruding portion 48c is provided in a substantially L shape when viewed from the right side so that the light guide-side through hole 48b is hidden when the light guide member 48 is viewed from above.

[0025] The torsion spring 45 has a coil spring portion 45a and a pair of biasing portions 45b. The coil spring portion 45a is a coil spring and is fixed to the spring fixing portion 47d in a state of being wound around the outer peripheral surface of the spring fixing portion 47d. Both ends of the coil spring portion 45a extend below the spring fixing portion 47d. The pair of biasing portions 45b are formed of elongated cylindrical rubber members inserted through both ends of the coil spring portion 45a. When the operation wheel 44 is in the initial state P0 position, the inner portions of the pair of biasing portions 45b abut against the first spring abutting portion 47e while biasing the first spring abutting portion 47e in a form of sandwiching the first spring abutting portion 47e.

[0026] The holding member 46 is made of synthetic resin and is a member for holding the position of the torsion spring 45. The holding member 46 has a bottom portion 46a and side plate portions 46b. The bottom portion 46a is disposed above the light source substrate 43 and has a shape that does not cover the light emitting sides of the respective LEDs 43a to 43c. Both front and rear sides of the bottom portion 46a slightly rise upward in a block shape, and the inner surface thereof is recessed in a curved shape along the outer peripheral surface of the operation wheel 44. The bottom portion 46a is fixed to the flat plate portion 42a of the fixing metal fitting 42 by screwing with the light source substrate 43 and the insulating plate IP sandwiched therebetween. Accordingly, the holding member 46 is fixed to the inner frame 37 via the fixing metal fitting.

[0027] The side plate portions 46b rise upward in a flat plate shape from the left end portion of the bottom portion 46a to the spring fixing portion 47d of the wheel member 47 with both plate surfaces facing in the left-right direction. At the tip end portion of the side plate portion 46b, a wheel receiving portion (support portion) 46b1 that is notched in a substantially arc shape along the outer peripheral surface of the spring fixing portion 47d is provided. The wheel receiving portion 46b1 is in proximity to the spring fixing portion 47d with a slight gap therebetween in the vertical direction and the left-right direction (the direction orthogonal to the axial direction of the shaft portion 41c). For this reason, the wheel receiving portion 46b1 can support the spring fixing portion 47d when the spring fixing portion 47d is inclined downward (in the direction orthogonal to the axial direction of the shaft portion 41c). The operation wheel 44 is disposed in a manner of being sandwiched between the resistance fixing portion 42b2 and the wheel receiving portion 46b1 in the axial direction of the shaft portion 41c (see FIG. 8).

[0028] Further, in a portion of the right side plate surface of the side plate portion 46b that is located below the first spring abutting portion 47e, a second spring abutting portion 46c that protrudes substantially flat to the right in a posture where both plate surfaces face in the vertical direction is provided. The plate surface of the second spring abutting portion 46c is gently curved so as to be convex downward, and has substantially the same width as the first spring abutting portion 47e. When the operation wheel 44 is in the initial state P0, a pair of biasing portions 45b of the torsion spring 45 abut against the second spring abutting portion 46c while biasing the second spring abutting portion 46c in a form that sandwiches the inner portion thereof between the second spring abutting portion 46c below the first spring abutting portion 47e.

[0029] In the pitch bender 40 configured as described above, when the operation wheel 44 is rotationally operated, the shaft portion 41c of the variable resistor 41 interlocks with the operation wheel 44, and the shaft portion 41c rotates around its axis. When the shaft portion 41c rotates, the variable resistor 41 converts its rotation angle into an electrical signal and outputs the electrical signal to the first substrate 37a. The electrical signal output to the first substrate 37a side is output to the control substrate of the electronic keyboard instrument 10 via the first substrate 37a, analyzed and controlled by the control substrate, and a pitch bend effect corresponding to the rotation angle of the operation wheel 44 is imparted to the musical sound of the electronic keyboard instrument 10.

[0030] Also, in the pitch bender 40, when the operation wheel 44 is rotationally operated forward, the wheel-side protruding portion 47c indirectly abuts against the front side of the second spring abutting portion 46c in a form that sandwiches the front-side biasing portion 45b of the torsion spring 45 therebetween, and the rotation of the operation wheel 44 forward is restricted in the first state P1 where the operation wheel 44 has rotated 45 degrees forward from the initial state P0. Similarly, when the operation wheel 44 is rotationally operated rearward, the wheel-side protruding portion 47c indirectly abuts against the rear side of the second spring abutting portion 46c in a form that sandwiches the rear-side biasing portion 45b of the torsion spring 45 therebetween, and the rotation of the operation wheel 44 rearward is restricted in the second state P2 where the operation wheel 44 has rotated 45 degrees rearward from the initial state P0. Note that within the range where the operation wheel 44 can be rotationally operated, the wheel-side protruding portion 47c and the light guide-side protruding portion 48c provided on the operation wheel 44 prevent the light source substrate 43 etc. from being visually recognized from the operation opening 36a1.

[0031] Further, in the pitch bender 40, when the operation wheel 44 is rotationally operated, one side of the pair of biasing portions 45b of the torsion spring 45 comes into contact with the first spring contact portion 47e and rotates away from the second spring contact portion 47e, and the other side comes into contact with the second spring contact portion 47e and rotates away from the first spring contact portion 47e, widening the interval between the pair of biasing portions 45b. Therefore, when the operation wheel 44 is rotationally operated from the initial state P0, when a finger or the like is released from the operation recess 44a of the operation wheel 44, the operation wheel 44 returns to the position of the initial state P0 by the elastic restoring force of the torsion spring 45. That is, the position of the torsion spring 45 is held by the holding member 46 (the second spring contact portion 47e).

[0032] Also, in the pitch bender 40, the light emission modes of the LEDs 43a to 43c are controlled by the control board according to the pitch bend effect applied to the musical sound and other operation modes. Specifically, the control board performs control to change the light emission color, light emission interval, etc. of the LEDs 43a to 43c. The light emitted from the LEDs 43a to 43c enters from the lower portion of the edge 48a of the light guide member 48 and is diffused, and is guided in the radial direction within the light guide member 48. The light guided within the light guide member 48 is emitted from the upper portion of the edge 48a of the light guide member 48 so that the performer can visually recognize it (see the optical path L1 shown in FIG. 8). Thereby, the performer can know the musical sound control state of the electronic keyboard musical instrument 10.

[0033] Next, in the pitch bender 40, a mode in which an abnormal load is dispersed when an abnormal load is externally applied to a portion (hereinafter referred to as the "exposed portion") exposed from the operation opening 37a1 of the operation wheel 44 will be described. Note that the "abnormal load" as used in this specification refers to an excessive load that is not applied during normal rotational operation of the operation wheel 44, and refers to a load applied due to an accidental event such as an impact caused by the electronic keyboard musical instrument 10 falling over.

[0034] As shown in FIG. 9, when a load Fa biased to the right is applied to the exposed portion, the load Fa is transmitted through the operation wheel 44 to the variable resistor 41 inserted through the operation wheel 44, and the resistance fixing portion 42b2 of the fixing fitting 42 that fixes the variable resistor 41 deflects to the right. When the resistance fixing portion 42b2 deflects to the right, the operation wheel 44 tilts to the right and the right side plate surface of the light guide member 48 abuts against the opening end of the operation opening 36a1 provided in the upper surface panel 36a, and the deflection of the resistance fixing portion 42b2 stops halfway. In this way, by the resistance fixing portion 42b2 deflecting to the right, the load Fa biased to the right applied to the exposed portion is dispersed.

[0035] Also, as shown in FIG. 10, when a load Fb biased to the left is applied to the exposed portion, the load Fb is transmitted through the operation wheel 44 to the variable resistor 41, and the resistance fixing portion 42b2 of the fixing fitting 42 deflects to the left. When the resistance fixing portion 42b2 deflects to the left, the operation wheel 44 tilts to the left and the left side of the wheel member 47 abuts against the opening end of the operation opening 36a1 provided in the upper surface panel 36a, and the deflection of the resistance fixing portion 42b2 stops halfway. In this way, by the resistance fixing portion 42b2 deflecting to the left, the load Fb biased to the left applied to the exposed portion is dispersed.

[0036] Also, in the pitch bender 40, the wheel side through hole 47b and the light guide side through hole 48b through which the shaft-like portion 41c of the variable resistor 41 is inserted are located on the left side of the fixing opening 42b3 (resistance fixing portion 42b2) where the sensor rear portion 41b of the variable resistor 41 is fixed. For this reason, as shown in FIG. 10, when a load Fc biased downward is applied to the exposed portion, the load Fc is dispersed in the leftward and downward directions, and the dispersed load Fb is transmitted through the operation wheel 44 to the variable resistor 41. As a result, while the resistance fixing portion 42b2 of the fixing fitting 42 deflects to the left, the operation wheel 44 tilts downward. When the operation wheel 44 tilts downward, the spring fixing portion 47d abuts against the wheel receiving portion 46b1 of the holding member 46, and the spring fixing portion 47d is supported by the wheel receiving portion 46b1 and the deflection of the resistance fixing portion 42b2 stops halfway. In this way, by the resistance fixing portion 42b2 deflecting to the left, the load Fc biased downward applied to the exposed portion is dispersed.

[0037] As described above, the pitch bender 40 according to the present embodiment is a pitch bender 40 fixed to the internal frame 37 of the left case 36, and includes a rotatable variable resistor 41, an operation wheel 44 rotatably attached to the variable resistor 41, and a fixing bracket 42 for fixing the variable resistor 41 to the internal frame 37. The fixing bracket 42 is connected to the variable resistor 41 and has a resistance fixing portion 42b2 having flexibility.

[0038] Since the pitch bender 40 is configured as described above, when an abnormal load is applied to a part of the operation wheel 44 from various directions, the load is transmitted to the variable resistor 41 to which the operation wheel 44 is attached. The load transmitted to the variable resistor 41 is transmitted to the resistance fixing portion 42b2 of the fixing bracket 42 to which the variable resistor 41 is connected, and the resistance fixing portion 42b2 bends according to the load. As a result, the abnormal load applied to a part of the operation wheel 44 is dispersed. For this reason, it is possible to prevent the load from concentrating on the variable resistor 41 and the operation wheel 44, and it is possible to realize a pitch bender 40 in which breakage or detachment of the variable resistor 41 and the operation wheel 44 is unlikely to occur even when an abnormal load is applied to the operation wheel 44 from the outside.

[0039] Further, in the pitch bender 40, the variable resistor 41 has a shaft-shaped portion 41c rotatable around an axis, and the fixing bracket 42 has a pair of slits 42b1 opened upward (a direction orthogonal to the axial direction of the shaft-shaped portion 41c) on both sides of the resistance fixing portion 42b2. Thereby, even in a configuration in which a part (the first screwing portion 42c and the second screwing portion 42d) of the fixing bracket 42 is fixed to the internal frame 37, the resistance fixing portion 42b2 located between the pair of upwardly opened slits 42b1 can be provided with flexibility in the left-right direction (the axial direction of the shaft-shaped portion 41c).

[0040] Also, in the pitch bender 40, the variable resistor 41 has a shaft-like portion 41c that is rotatable around the axis, and is close to the spring fixing portion 47d of the operation wheel 44 in the vertical direction and the horizontal direction (a direction orthogonal to the axial direction of the shaft-like portion 41c), and includes a holding member 46 having a wheel receiving portion 46b1 that can support the spring fixing portion 47d. The holding member 46 is fixed to the inner frame 37 of the left case 36 via a fixing metal fitting 42. Thus, when a load closer to the direction from the operation wheel 44 toward the wheel receiving portion 46b1 (for example, closer to the downward direction) is applied to the operation wheel 44, the operation wheel 44 tilts toward the wheel receiving portion 46b1 side and the spring fixing portion 47d is supported by the wheel receiving portion 46b1. Therefore, when an abnormal load closer to the direction toward the wheel receiving portion 46b1 is applied to the operation wheel 44, the load can be dispersed by the deflection of the resistor fixing portion 42b2 and then the deflection of the resistor fixing portion 42b2 can be stopped halfway, preventing the operation wheel 44 from tilting excessively.

[0041] Also, in the pitch bender 40, the operation wheel 44 is provided in a manner sandwiched between the resistor fixing portion 42b2 and the wheel receiving portion 46b1 in the axial direction of the shaft-like portion 41c. Thus, when an abnormal load closer to the direction away from the resistor fixing portion 42b2 with respect to the operation wheel 44, that is, closer to the direction from the operation wheel 44 toward the wheel receiving portion 46b1, is applied, a configuration in which the spring fixing portion 47d is supported by the wheel receiving portion 46b1 can be realized.

[0042] Also, the electronic keyboard instrument 10 according to the present embodiment includes the pitch bender 40 and the case 30. Thus, even when the electronic keyboard instrument 10 is overturned or the like and an abnormal load is applied to the operation wheel 44, the load is dispersed by the deflection of the resistor fixing portion 42b2. Therefore, an electronic keyboard instrument 10 in which damage or the like of the pitch bender 40 is less likely to occur can be realized.

[0043] In the electronic keyboard instrument 10, the pitch bender 40 is housed in the left case 36, and the left case 36 has an upper surface panel 36a provided with an operation opening 36a1 through which a part of the pitch bender 40 is exposed. Thus, when a load biased in a predetermined direction (a load biased to the right direction in this embodiment) is applied to the operation wheel 44 and the operation wheel 44 is tilted, a part of the operation wheel 44 can be brought into contact with the opening edge of the operation opening 36a1 provided in the upper surface panel 36a, and the bending of the resistance fixing portion 42b2 can be stopped halfway. Therefore, it is possible to prevent the operation wheel 44 from tilting excessively.

[0044] Also, in the electronic keyboard instrument 10, the left case 36 has an internal frame 37 to which a fixing metal fitting 42 is fixed on the inner surface side where the pitch bender 40 is housed. Thereby, in the configuration in which the pitch bender 40 is housed and fixed on the inner surface side of the left case 36, it is possible to realize an electronic keyboard instrument 10 in which breakage or the like of the pitch bender 40 hardly occurs.

[0045] Note that the embodiments described above are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are included in the invention described in the claims of the patent application and the equivalent scope thereof. For example, in the above embodiment, the pitch bender is exemplified as the operator, but other operators such as a modulation wheel may be used. Also, for example, in the above embodiment, the electronic keyboard instrument is exemplified as the electronic musical instrument, but other electronic musical instruments without a keyboard may be used.

[0046] The invention described in the first claim of the present application is appended below. [1] A rotatable shafted portion, An operation portion rotatably attached to the shafted portion, A fixing portion for fixing the shafted portion to the device, The fixing part has a flexible part connected to the shaft part and having flexibility. Operator. [2] The shaft part has a shaft-shaped part rotatable around the axis, The fixing part has a pair of slits opened in a direction orthogonal to the axial direction of the shaft-shaped part on both sides of the flexible part. The operator according to [1] above. [3] The shaft part has a shaft-shaped part rotatable around the axis, A support part is provided in the direction orthogonal to the axial direction of the shaft-shaped part and close to a part of the operation part, and can support a part of the operation part. The support part is fixed to the device. The operator according to [1] or [2] above. [4] The operation part is provided in a form sandwiched between the flexible part and the support part in the axial direction. The operator according to [3] above. [5] An operator according to any one of [1] to [4] above, and a device. Electronic musical instrument. [6] The operator is housed in the device, The device has a panel member provided with an opening through which a part of the operation part is exposed. The electronic musical instrument according to [5] above. [7] The device has a frame member to which the fixing part is fixed on the inner surface side where the operator is housed. The electronic musical instrument according to [6] above.

Explanation of symbols

[0047] 10 Electronic keyboard instrument 12 Dial 14 Light-emitting button 16 Setting button 18 Headphone jack 20 Keyboard part 30 Case 32 Upper case 34 Lower case 36 Left case 36a Operation opening 37 Inner frame 37a First substrate 37b Second substrate 38 Right case 40 Pitch bender 41 Variable Resistor 41a Front Part of Sensor 41b Rear Part of Sensor 41c Axial Part 41d Wiring Connection Part 42 Fixing Bracket 42a Flat Plate Part 42b Upright Wall Part 42b1 Slit 42b2 Resistor Fixing Part 42b3 Fixing Opening 42c First Screwing Part 42d Second Screwing Part 43 Light Source Substrate 43a LED 43b LED 43c LED 43d Light Source Connection Part 44 Operation Wheel 44a Operation Concave Part 45 Torsion Spring 45a Coil Spring Part 45b Biasing Part 46 Holding Member 46a Bottom Part 46b Side Plate Part 46b1 Wheel Receiving Part 46c Second Spring Contact Part 47 Wheel Member 47a1 Wheel-Side Concave Part 47b Wheel-Side Through Hole 47c Wheel-Side Overhanging Part 47d Spring Fixing Part 47e First Spring Contact Part 48 Light Guide Member 48a Edge 48a1 Light Guide-Side Concave Part 48b Light Guide-Side Through Hole 48c Light Guide-Side Overhanging Part 49 Double-Sided Tape 49a Tape-Side Through Hole IP Insulating Plate L1 Optical Path P0 Initial State P1 First State P2 Second State S1 First Fixing Screw S2 Second Fixing Screw

Claims

1. A rotatable shaft portion, a torsion spring having a coil spring portion and a pair of biasing portions, an operating portion rotatably attached to the shaft portion and having a spring fixing portion protruding in the axial direction of the shaft portion to fix the coil spring portion, a holding member having a side plate portion provided with a support portion that supports the spring fixing portion of the operating portion in the direction so as to hold the position of the torsion spring when the operating portion is inclined in a direction orthogonal to the shaft portion, and having a gap between the spring fixing portion in the direction when the operating portion is not inclined in the direction, the spring fixing portion is provided with a first spring abutting portion that is abutted against the pair of biasing portions and biased by the pair of biasing portions, the side plate portion is provided with a second spring abutting portion that is abutted against the pair of biasing portions and biased by the pair of biasing portions, when the operating portion is rotationally operated, further comprising an overhanging portion that sandwiches one or the other of the pair of biasing portions and indirectly abuts against the second spring abutting portion, an operating element.

2. The spring fixing portion is substantially cylindrical, The support portion has a shape that is cut in a substantially arc shape, The operating element according to Claim 1.

3. Comprising a fixing portion for fixing the shaft portion to the device, The operating portion is provided between the fixing portion and the support portion in the axial direction of the shaft portion, The operating element according to Claim 1.

4. The fixing portion has a flexible portion connected to the shaft portion and having flexibility, The operating element according to Claim 3.

5. The flexible portion is provided with an opening through which a part of the shaft portion is inserted, The operating element according to Claim 4.

6. The shaft portion has a shaft-shaped portion rotatable around the axis, A through hole through which the shaft-shaped portion is inserted is provided at a substantially central portion of the operating portion, The operating element according to Claim 1.

7. The through hole is provided on the support portion side in the operating portion, The operating element according to Claim 6.

8. Comprising a fixing portion for fixing the shaft portion to the device, The fixing portion has a flexible portion connected to the shaft portion and having flexibility, The flexible portion is provided with an opening through which a part of the shaft portion is inserted, The through hole is provided on the support portion side of the opening, The operating element according to Claim 6 or 7.

9. The pair of biasing portions extend below the spring fixing portion, The operating element according to any one of Claims 1 to 8.

10. An operator according to any one of Claims 1 to 9, and a device, comprising an electronic musical instrument.

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