JPH08719Y2 - Lever controller for electronic musical instruments - Google Patents

Description

[Detailed Description of Device] <Industrial Application Field> This device is applied to an electronic musical instrument, for example, a pitch bend amount,
A lever controller for an electronic musical instrument that controls various musical tone control parameters such as modulation and volume.A pair of pressure-sensitive elements are provided on both sides of an operating lever, and a spring member is brought into contact with the pressure-sensitive element to operate the lever. The pressure applied to the lever in a constant direction is detected in two stages, and two types of tone control parameters are controlled according to the strength of the pressure.

<Prior Art> In an electronic musical instrument, a joystick type controller has been conventionally known as a controller capable of operating two types of musical tone control parameters such as modulation adjustment and pitch bend amount with a single operating lever.

This joystick type controller has an operation lever (stick) protruding from the operation panel,
This operation lever can be tilted (swinged) in two directions orthogonal to each other on the plane of the operation panel. Further, two variable resistors are arranged at the base end of this operation lever. One of the variable resistors changes its resistance value according to the one-way swing of the operating lever.
The other one has its resistance value changed in accordance with the swing of the operating lever in the other direction.

Then, the amount of swing of the operating lever in each direction is measured by each variable resistor, and two parameters are controlled.

<Problems to be Solved by the Invention> However, in such a conventional joystick type controller, two types of parameters are controlled by swinging the operating levers in two directions orthogonal to each other. Therefore, there is a problem in that the operation lever cannot be operated in two directions at the same time, and two related parameters for tone control (for example, pitch bend amount and modulation) cannot be quickly switched.

SUMMARY OF THE INVENTION An object of the present invention is to provide a lever controller for an electronic musical instrument, which is capable of instantaneously switching and controlling two parameters for controlling musical sounds related to each other.

<Means for Solving the Problem> Therefore, according to the present invention, an operation lever (operation lever 10 in FIG. 1) supported by an operation panel so as to be swingable in one direction,
A pair of spring members, one end of which abuts on both sides of the operating lever in the swinging direction and the other end of which is locked to the operating panel (Fig. 1 leaf springs 20A, 20B).
A deformation restricting means (side wall surface 13 of the lower surface recessed portion in FIG. 1) for restricting further deformation when the deformation of the spring member reaches a predetermined amount within the swing range of the operation lever; A pair of pressure-sensitive elements (first pair of pressure-sensitive elements attached to either one of the members and capable of detecting the pressure applied between the operation lever and the spring member before and after the deformation of the spring member due to the swing of the operation lever is restricted). And a pressure sensitive element 19A, B).

<Operation> In the lever controller for an electronic musical instrument according to the present invention, when the operation lever is swung toward one side, the spring member is elastically deformed, for example, via the pressure sensitive element on one side surface.
The elastic deformation amount (swing amount) at this time is detected as an electric signal by the pressure sensitive element as a restoring force of the spring member.

Then, it is possible to obtain a two-step operation feeling such as a weak operation feeling that deforms the spring member at the beginning of the rocking, and a strong operation feeling that directly deforms the pressure sensitive element in the latter half. The relationship of the output of the pressure sensitive element shows two kinds of gradients. Further, unlike the conventional case, the operation lever is not rocked to turn on / off the switch, but the operation amount from the beginning of the rocking is detected by the pressure sensitive element. Sway is detected,
When controlling two parameters, these can be switched instantaneously and controlled.

<Embodiment> An embodiment of the lever controller for an electronic musical instrument according to the present invention will be described below with reference to FIGS.

FIG. 1 is a sectional view of a lever controller according to an embodiment of the present invention. FIG. 2 is a sectional view for explaining the operation of the lever controller. FIG. 3 is a plan view showing a usage state of the lever controller.

In these figures, 1 indicates an operation panel of the electronic keyboard instrument. 2 is a keyboard part. As shown in FIG. 3, two control wheels 4, 5 are juxtaposed on the upper surface of the operation panel 1, and an operation lever is provided between the wheels 4, 5 and the keyboard portion 2. 10 are arranged.

In the operation panel 1, the wheels 4 and 5 and the operation lever 10 are located at a distance that can be simultaneously operated by the performer's left hand LH when performing, for example, the wheels 4 and 5.
Is arranged so that the middle finger and the index finger can be operated, and the operation lever 10 can be operated by the thumb (third part).
See figure).

Here, the operating lever 10 is configured as shown in FIG.

That is, a rectangular upper surface recess 12 having a predetermined depth is formed on the upper surface of the operation panel 1, and a rectangular lower surface recess 13 having a predetermined depth is also formed on the lower surface of the operation panel 1 on the back side of the upper surface recess 12. Has been formed. The upper surface recess 12 and the lower surface recess 13 are communicated with each other by a substantially rectangular through hole 14 formed in the operation panel 1.

A fixed case 15 is provided below the lower surface recess 13 so as to be fixed to the lower surface of the operation panel 1. This fixed case
Reference numeral 15 is a U-shaped cross section, and is configured to close the opening of the lower surface recessed portion 13.

A support 17 is fixedly installed on the bottom surface of the fixed case 15, and the operation lever 10 is unidirectionally mounted on the support 17 via a shaft 18 (with respect to the wheel 5 as indicated by an arrow in FIG. 3). It is swingably supported (in the direction of approaching and separating). That is, the shaft portion 10A of the operation lever 10 is provided so as to freely penetrate the through hole 14 and extend in the up-down direction, and the concave head portion 10B thereof projects from the upper surface recessed portion 12.

In FIG. 1, a pair of pressure sensitive elements 19A and 19B are attached to both side surfaces of the shaft portion 10A of the operation lever 10. In other words, the operation lever 10 is provided so as to swing in the left-right direction in the drawing with the shaft 18 as the fulcrum, and the pressure-sensitive elements 19A and 19B are the shaft portions.
They are attached to the left and right side surfaces in the figure of 10A, respectively.

20A and 20B are a pair of left and right leaf springs, which are bent into an L shape and attached to the fixed case 15 so as to be elastically deformed in the left-right direction (swing direction) in the drawing. That is,
The base end portions of the leaf springs 20A and 20B are screwed to the side wall of the fixed case 15, and the tip end portions thereof are bent at a right angle toward the shaft portion 10A and disposed so as to contact the pressure sensitive elements 19A and 19B, respectively. ing. Abutting portions that abut the pressure sensitive elements 19A, 19B
21A and 21B are covered with felts 22A and 22B, respectively.

Then, these leaf springs 20A and 20B are biased in the opposite directions by the same force so as to hold the operation lever 10 at the illustrated upright position (neutral position). The leaf spring 20A urges the operating lever 10 simultaneously toward the left side in FIG. 1 and the leaf spring 20B also urges toward the right side. Therefore, the leaf springs 20A and 20B generate an elastic restoring force in a direction opposite to the urging direction of the operating lever 10 by swinging the operating lever 10 in the horizontal direction in the figure. The leaf springs 20A and 20B are brought into contact with the side wall surfaces of the lower surface recess 13 to restrict the swing range (swing stroke) of the operation lever 10.

The pressure sensitive elements 19A and 19B are connected to a control device (not shown) via cords 23A and 23B, respectively. These pressure-sensitive elements 19A, 19B convert the elastic restoring force obtained via the contact portions 21A, 21B of the leaf springs 20A, 20B into electric signals and output them.

Next, the operation of this embodiment will be described with reference to FIG.

Here, the virtual line represents the right limit position and the left limit position of the operating lever 10, and the arrow directions L and R represent the swinging direction. Also,
When the operating lever 10 is not operated, the leaf springs 20A and 20B hold the upright neutral position as shown in FIG.

From this neutral state, as shown in the figure, the head portion 10B of the operating lever 10 is slid on the belly of the thumb and rocks in the direction of arrow R. As a result, the pressure-sensitive element 19A on the swinging direction R side receives pressure from the contact portion 21A of the leaf spring 20A and outputs an electric signal corresponding to this pressure.

At this time, the pressure received by the pressure-sensitive element 19A in the swing direction R is the elastic restoring force of the leaf spring 20A corresponding to the swing amount of the operating lever 10 until the leaf spring 20A abuts the side wall surface of the lower surface recess 13. And corresponds to the force applied to the operation lever 10 after the contact.

That is, the pressure sensitive element 19 with respect to the operation amount of the operation lever 10
The amount of change in the pressure A is different before and after the leaf spring 20A comes into contact with the side wall surface of the lower surface recessed portion 13, so that a two-step electric signal can be obtained. For example, before contact, the amount of deformation (swing amount) increases slightly, but after contact, the amount of swing of the swing lever 10 becomes the amount of deformation of the pressure sensitive element 19A, so comparison before contact Then, the increase with respect to the amount of change is sharp.

After that, take out these two-step electric signals and, for example,
One is assigned to the pitch bend amount and the other is assigned to the modulation for control. Note that VCA, VCO, and the like can be considered as the musical tone control parameters.

Therefore, the force in one direction applied to the operation lever 10 can be detected as a two-step electric signal, and two kinds of tone control parameters can be controlled according to the strength of the force.

Further, in the present embodiment having the above-mentioned configuration, since the swing stroke of the operation lever 10 can be set smaller than that of the conventional one, the operation lever 10 can be switched between the one direction and the other direction more quickly. Further, since the thumb can be operated at the position shown in FIG. 3 so that the operation direction is a fan-shaped range with the palm rest part as a fulcrum (center), it is operated simultaneously with other wheels and independently. be able to.

In the present invention, the operation lever may be of a joystick type so that it can be swung in multiple directions, and a pressure sensitive element may be attached to the side surface in each swing direction. In addition, the pressure sensitive element may be installed on the leaf spring 20 contrary to the configuration of the present embodiment.

<Effects of Device> As described above, in the lever controller for an electronic musical instrument according to the present invention, the stroke of the operation lever can be set minutely due to its configuration. The switching of the operation in the direction can be carried out quickly, whereby the parameters can be switched instantaneously and controlled.

[Brief description of drawings]

1 is a sectional view of a lever controller for an electronic musical instrument according to an embodiment of the present invention, FIG. 2 is a sectional view for explaining the operation of an operating lever according to an embodiment of the present invention, and FIG. It is a top view which shows the use condition of the operating lever which concerns on one Example of a device. 1 ... Operation panel, 10 ... Operation lever, 19A, 19B ... Pressure sensitive element, 20A, 20B ... Leaf spring.

Claims (1)

[Scope of utility model registration request] 1. An operating lever, which is swingably supported in one direction on an operating panel, and one end of which abuts against both side surfaces in the swinging direction of the operating lever, and the other end of which is engaged with the operating panel. Either a pair of stopped spring members, a deformation restricting means for restricting further deformation when the deformation of the spring member reaches a predetermined amount within the swing range of the operation lever, either the operation lever or the spring member A pair of pressure-sensitive elements attached to either one of the pressure-sensitive elements are capable of detecting the pressure received between the operation lever and the spring member before and after the deformation of the spring member due to the swing of the operation lever is restricted. Lever controller for electronic musical instruments