JPH0731276Y2 - Musical sound controller - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to various musical tone control factors (parameters) such as pitch bend amount and volume in electronic musical instruments and electric musical instruments.
The hemispherical shape of the manipulator for controlling the control makes the operability good when operating two control factors at the same time.

<Prior Art> A joystick type operator is known as an operator capable of simultaneously operating two control factors such as modulation adjustment and pitch bend amount of an electronic musical instrument.

This product changes the resistance of the variable resistor installed at the base end of the stick by tilting the rod-shaped operator (stick or lever) protruding from the operation panel in multiple directions on the panel plane. It was used to adjust and control a plurality of control parameters at the same time.

In addition, the input device of the electronic musical instrument shown in U.S.A. 55-68192 outputs an input signal when the handle is rotated back and forth or left and right, and the pressing force when the handle is pushed in the axial direction. It was to detect and output the input signal separately.

<Problems to be Solved by the Invention> However, in such a joystick-type operator provided on the operation panel of a conventional electronic musical instrument, the performer picks the head of the stick with two fingers. Since it has been configured to be operated in such a way, each finger needs to be bent in the opposite direction, and the wrist must be used as a fulcrum in the case of operation, and there is a problem that delicate and quick operation requires skill.

In addition, in the input device of the electronic musical instrument shown in Jitsukai Sho 55-68192, if the player pushes in the axial direction due to the pressing force while the shaft is tilted, he must operate in an oblique direction, which is exactly what the performer desires. There was a problem that I could not apply the force.

<Means for Solving the Problems> The present invention supports a substantially hemispherical operation portion projecting from an operation panel of a musical instrument and the operation portion rotatably in two different directions on the operation panel plane. A support part, first and second controlled members which are respectively controlled on the basis of rotation of the operation part in two directions, pressure provided on the support part in the vertical direction with respect to the operation part And a third controlled member for detecting.

<Operation> In the tone control controller according to the present invention, since the operation portion provided so as to project from the operation panel has a hemispherical shape, the performer can easily operate even with one finger pad, for example. Further, it is possible to perform operations in two directions on a plane more quickly and smoothly than in the conventional case.

Further, by providing the third controlled member on the support portion that supports the operation portion, it is possible to detect the pressure applied in the vertical direction regardless of the operation state of the operation portion.

<Embodiment> A first embodiment of the tone control controller according to the present invention will be described below with reference to FIGS.

As shown in these figures, in this first embodiment, a cross shaft type flexible joint is used for the supporting portion of the operator.

In the figure, 11 is an operation panel, which is arranged, for example, on the side of a keyboard of an electronic musical instrument. 13 is the bottom plate (frame) of this electronic musical instrument. The operation panel 11 is arranged above the bottom plate 13.

A box-shaped and trapezoidal ball stopper 15 having a predetermined height is fixed to the upper surface of the bottom plate 13. A bearing portion 17 is erected on the ball stopper 15. Bearing 17 is a ball stopper
Two vertical plates standing on the upper surface of 15 are separated by a predetermined distance.

In addition, the bearing portion 17 includes one shaft 19a of the cross shaft 19.
Both ends of are supported rotatably around the shaft 19a. The shaft 19a is rotatably supported by the bearing portion 17 in a horizontal plane.

On the other hand, a vertical ball shaft 21 is attached to the other shaft 19b protruding orthogonally to the shaft 19a of the cross shaft 19 on the operation panel 1.
It lies in one plane and is rotatably supported.

The ball shaft 21 is a hemispherical (bowl-shaped) ball 23 protruding downward from the central portion of the inner surface in a boss shape.
The lower end of the ball shaft 21 branches into a fork shape and is fitted to the shaft 19b of the cross shaft 19. That is, the ball shaft 21 is rotatably supported around the shaft 19b.

Therefore, the ball 23 is supported by the bearing portion 17 via the ball shaft 21 and the cross shaft 19 so as to be rotatable in two orthogonal directions in the plane of the operation panel 11. The center of rotation of the ball 23, which is the operating portion, is the center of curvature of the curved surface of the ball 23 (center of the sphere).

A part of the outer surface 23a of the ball 23 is part of the operation panel 1 described above.
The circular opening 11a of 1 projects upward by a predetermined height. That is, the player can press and slide the part 23a of the ball 23 with the part of the finger pad.
The 23 can be rotated within the respective angular ranges α and β in the two rotational directions. When exceeding this range, the ball 23 comes into contact with the side wall of the ball stopper 15 and its rotation is blocked (the ball 23 in the abutting state is shown by a virtual line in FIGS. 1 and 2).

The upper end portion of the ball shaft 21 (the root portion of the ball 23) is fitted into the slide grooves 25a, 27a of the links 25, 27 that are curved along the inner surface of the ball 23. These links 2
The reference numerals 5 and 27 are formed to have a curvature similar to that of the ball 23.

In this way, the slide grooves 25a, 27a formed with a predetermined width so that the upper end of the ball shaft 21 fits are respectively formed in the link 2
It is formed so as to extend over a predetermined length along the extending direction of 5, 27.

The links 25 and 27 are rotatably supported by stays 29, respectively.

That is, the shaft member 31 is caulked and fixed to the one end portion 25A of the link 25, and the shaft member 31 is rotatably supported by the stay 29. 32 is an E ring. A bush 33 is crimped and fixed to the other end 25B of the link 25,
The bush 33 is connected to a shaft 37a of a first rotary volume 37 by a set screw 35. The first rotary volume 37 is fixed to the stay 29.

Similarly to the link 25, the link 27 has its one end 27A rotatably supported by the stay 29 via the shaft member 41.
A second rotary volume 47 is attached to the other end portion 27B via a bush 43 and a set screw 45.

Therefore, when the ball 23 rotates along the extending direction of the slide groove 25a (within the range of the angle α), the upper end portion of the ball shaft 21 engages with the inner wall of the slide groove 27a of the link 27 to link. 27 is rotated about the axis 19b as a fulcrum.
Second rotary volume 47 as second controlled member
Is the one that works. The second rotary volume 47 is for controlling the pitch bend amount, for example.

Conversely, when the ball 23 rotates in the slide groove 27a with the shaft 19a as a fulcrum, the first rotary volume 37, which is the first controlled member, is operated via the link 25.
The first rotary volume 37 may control the modulation.

In addition, as shown in FIG. 2, a second rotary volume
47 is a return rubber 51 and a stopper rubber 53 fixed.
It is a configuration that is returned to the midpoint by A and 53B. The first rotary volume 37 and the second rotary volume 47 are arranged so as to face each other with a stay 29 so that their axes are orthogonal to each other.

Therefore, when the bowl-shaped ball 23, which is the head of the operator, is slidably contacted with the ball of the finger and rotated, the variable resistance values of the rotary volumes 37 and 47 change according to the direction and amount of the rotation. The change values of the rotary volumes 37 and 47 are taken out and changed, for example, in correspondence with the pitch bend amount, the modulation, the sound volume and the like. For example, the pitch bend wheel and the modulation wheel can be shared by the single ball 23.
Other factors (VCA, VCO, etc.) can be considered as factors (parameters) for controlling the musical sound.

FIGS. 4 to 7 show a second embodiment of the musical sound control controller according to the present invention.

In the second embodiment, a ball joint is used in place of the cross shaft of the above embodiment, and a pressure sensor is arranged below the ball joint.

That is, the spherical joint ball 63 is fitted and fixed to the lower end of the ball shaft 61. Joint ball 63
Are rotatably supported by a ball receiver 65 as a spherical bearing and a cover 67. Reference numeral 71 indicates a ball which is a hemispherical (bowl-shaped) operator body.

The pressure sensor 73 is arranged on the ball stopper 15 below the bearing 65, and senses the pressure applied to the ball 71 in the vertical direction.

FIG. 7 shows the pressure sensor 73.

As shown in this figure, the pressure sensor 73 includes a case 75 held by the lower end member 15a of the ball stopper 15,
It is composed of a sensor portion 79 sandwiched between the case 75 and the felt 77. The sensor portion 79 is composed of a pair of upper and lower electrodes 81 and 83, and a pressure sensitive rubber 85 sandwiched between these electrodes 81 and 83.

The ball stopper 15 is composed of a plate spring base, and is further fixed on the bottom plate 13 with the felt 87 interposed therebetween.

That is, when a predetermined force is applied to the ball 71 from the upper side to the lower side, the ball stopper 15, which is a plate spring base, bends via the ball shaft 61 and the bearing 65. At this time, even in the pressure-sensitive sensor 73, the pressure is detected by the displacement of the pressure-sensitive rubber 85. The pressure sensor 73 can control a third control factor in addition to the two control factors by the rotation of the ball 71 in two directions, for example, the pitch bend amount and the sound volume. The felt 87 prevents wobbling.

Other configurations and operations are similar to those of the above embodiment.

A bush switch may be used instead of the pressure sensor. In this case, the switch can be used as a reset switch or a mode switch.

<Effects of the Invention> According to the present invention, it is possible to perform operations in two directions on a plane more quickly and smoothly than in the past, so that the musical tone can be controlled quickly and smoothly. Also, the third
Since the control factor of can be controlled by the pressure applied in the vertical direction regardless of the operating state of the operator, musical tone can be controlled with good operability.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a tone control controller according to a first embodiment of the present invention, FIG. 2 is a vertical sectional view of the tone control controller according to the first embodiment in another direction, and FIG. 1 is a plan view of a tone control controller according to one embodiment, FIG. 4 is a vertical sectional view of a tone control controller according to a second embodiment, and FIG. 5 is another section of a tone control controller according to the second embodiment. 6 is a plan view of the musical tone control controller according to the second embodiment, and FIG. 7 is a longitudinal sectional view showing a pressure-sensitive sensor of the musical tone control controller according to the second embodiment. 11 ... Operation panel, 17 ... Bearing section (support section), 21 ... Ball shaft (operation section), 23 ... Ball (operation section), 37 ... First rotary volume (first controlled member) ), 47 ……
Second rotary volume (second controlled member).

Claims (1)

[Scope of utility model registration request] 1. A substantially hemispherical operation portion projecting from an operation panel of a musical instrument, a support portion that supports the operation portion in two different directions on the operation panel plane, and an operation portion of the operation portion. First and second controlled members that are respectively controlled based on rotation in two directions, and a third controlled member that is provided on the support portion and that detects pressure applied to the operation portion in the vertical direction. A musical sound control controller characterized by comprising: