JP4648808B2 - Keyboard device - Google Patents

Description

  The present invention relates to a keyboard device suitable for application to, for example, an electronic musical instrument called a synthesizer or a keyboard.

The electronic keyboard instrument is a module in which an effector and the like are incorporated in a sound source that generates an electrical signal of a sound having a pitch name selected by keyboard operation, and the keyboard and module are separated from the model that is integrated into the keyboard. There is a type that can perform by combining a module of a desired type and a keyboard of the desired type according to the player's preference.
A type of electronic keyboard instrument in which the keyboard and the module are integrated is easy to handle, but has a drawback that the degree of freedom is poor. On the other hand, a musical instrument of a type in which a keyboard and a module are separated from each other has high versatility because the keyboard and module can be freely selected, and can be adapted to various performances.

The electronic keyboard instrument of the type in which the keyboard and the module are separated separately has the characteristic that various performances can be realized because the combination of modules can be freely selected as described above. However, since the keyboard and the module are not integrated, there is a drawback that the movement is troublesome. Also, since some operation must be performed on the module even during performance, it is necessary to support the module in the vicinity of the keyboard, that is, in a range within the reach of the performer. Therefore, in addition to the stand that supports the keyboard, a stand that supports the module is required.
Recently, there are many forms in which various modules are rack-mounted and rack-mounted. Even in such a case, the rack must be installed within the reach of the performer, so that a stand for the rack is required, resulting in a costly disadvantage.

  An object of the present invention is to provide a keyboard device that can handle a keyboard and a module in an integrated manner while having a function of freely selecting a module to be combined with the keyboard.

In the present invention, the upper surface of the flat base is divided into two, the keyboard is arranged in one of the two divided areas, and the rack mount member is arranged in the other area. The rack mount member has screw holes arranged in dimensions conforming to the rack mount standard, and the rack mount type module is mounted using this screw hole, and the keyboard and the rack mount type module are integrated through the base. To do.
More specifically, the keyboard device of the present invention includes a base having a rectangular plane, a keyboard mounted in a posture that closes a half in the short side direction from one long side of the plane of the base, and the back of the keyboard The first slide rail arranged along the base, the second slide rail arranged along the other long side of the base, and the first slide rail and the second slide rail allow movement in the long side direction of the base A structure including a pair of supported rack mount members is provided.

Further, the present invention is characterized in that each of the pair of rack mount members is slidable in the axial direction of the first slide rail at one end side, and the axis is orthogonal to the direction orthogonal to the axis of the first slide rail. The shaft is rotatably supported as a shaft, and the other end side is slidably connected to the second slide rail via two link levers.
Further, the present invention is characterized in that the rack mount member has a rack mount surface parallel to a plane including the axis of the first slide rail, and the center position of the rack mount surface is one of the rack mount member and the other rack mount member. And a screw hole formed with an interval in accordance with the rack mount standard.

According to the above-described characteristic feature of the present invention, the keyboard is disposed on the front side of the base, and the rack mount member is disposed on the back side of the keyboard. By mounting a rack mount type module on the rack mount member, the keyboard and the module are integrated via a base. Therefore, since the keyboard and the module can be carried together when moving, handling is easy.
Furthermore, since the module mounted on the rack mount member can be easily replaced, a module suitable for performance can be freely selected and mounted.
Further, since the rack mount member is connected to the second guide rail via two link levers, the front panel surface of the module mounted on the rack mount member can be raised (hereinafter referred to as tilt up). Accordingly, the module panel surface can be set to a flat attitude and a tilted attitude, and the player's favorite attitude can be selected.

  A keyboard is mounted along one long side on a flat base having a rectangular shape. A rack mount member is placed behind the keyboard. The rack mount member is slidably supported by a first slide rail disposed along the back surface of the keyboard and a second slide rail disposed along the other long side of the base.

1 to 8 show an embodiment of the present invention. In the figure, reference numeral 100 denotes a base, 200 denotes a keyboard mounted on the upper surface of the base 100, and 300 denotes a rack mount member disposed behind the keyboard 200.
In this embodiment, the base 100 shows a case in which a rectangular pipe formed of, for example, an aluminum extrusion mold is formed in a rectangular frame shape. The keyboard 200 is mounted on the opening surface on the upper surface side of the base 100 along one long side of the base 100. The width W of the keyboard 200 is substantially equal to the length of the long side of the base 100, and the depth D1 of the keyboard 200 is about ½ of the dimension D2 of the short side of the base 100. In this embodiment, the keyboard 200 is an example of a keyboard in which a volume control wheel 204 and a pitch modulation wheel 205 are provided in addition to a white key and a black key.

  A first slide rail is disposed on the back surface of the keyboard 200, and a second slide rail is disposed along the other long side of the base 100. Examples of the first slide rail and the second slide rail are shown in FIGS. 4 and 5 show an embodiment of the first slide rail 301. FIG. In this embodiment, the first slide rail 301 shows a case where the top plate 201 that closes the top surface of the keyboard 200 and the back plate 202 that closes the back surface are used. That is, a groove 301-1 constituting the first slide rail 301 is formed at a joint portion between the top plate 201 and the back plate 202 of the keyboard 200, and an arc surface centering on the axial center position of the groove 301-1. The case where 301-2 is formed in a part of the back plate 202 and the first slide rail 301 is constituted by the groove 301-1 and the arcuate surface 301-2 is shown. The top plate 201, the back plate 202A, the groove 301-1 and the circular arc surface 301-2 can be formed by an extruded aluminum material.

As shown in FIG. 5, the connecting member 302 protruding from the rack mount member 300 is engaged with the first slide rail 301 shown in FIG. By this connecting member 302, the rack mount member 300 is slidable with respect to the first slide rail 301, and is supported so as to be rotatable about the axial center position of the groove 301-1.
FIG. 6 shows an embodiment of the second slide rail 310 and a connecting portion for connecting the second slide rail 310 and the rack mount member 300. In this embodiment, a case where the second slide rail 310 shown in FIG. 6 is constituted by a square pipe constituting the frame of the base 100 shown in FIGS. 1 to 3 is shown. The second slide rail 310 has a groove 310-1 on the upper surface and the lower surface. The free end of the slider 310-2 having a C-shaped cross section is engaged with the groove 310-1, and the slider 310-2 is engaged with the second slide rail. It is supported so as to be movable along 310. Two sliders 310-2 are attached to the second slide rail 310 while maintaining a predetermined interval.

  A first link lever 310-3 is rotatably attached to the slider 310-2, and a second link lever 310-4 is rotatably attached to the rotational free end of the first link lever 310-3. . The first link lever 310-3 and the second link lever 310-4 are rotatably supported by an axis parallel to the axis of the second slide rail 310, respectively. Therefore, the rotation direction rotates in a direction in which a surface orthogonal to the axis of the second slide rail 310 is a rotation surface. The rotation free end of the second link lever 310-4 is rotatably connected to the rack mount member 300, and the rack mount member 300 can be tilted up and supported so as to be movable in the long side direction of the base 100. .

  7 shows a state in which the first link lever 310-3 and the second link lever 310-4 are most folded, and FIG. 8 shows a state in the middle of tilting up the rack mount member 300. The state shown in FIG. 6 shows a state in which the rack mount member 300 is tilted up and stabilized. In this stable state, the first link lever 310-3 and the second link lever 310-4 are in a state where they are folded back in a reverse shape, and the state is maintained by the stopper. As described above, the first link lever 310-3 and the second link lever 310-4 are passed through the top dead center position and are received by the stopper in the inverted character state, so that the rack can be maintained in this stable state. Even if some force is applied to the mount member 300, it is possible to prevent the occurrence of an accident in which the first link lever 310-3 and the second link lever 310-4 rotate in the direction in which they are folded unexpectedly. That is, when the first link lever 310-3 and the second link lever 310-4 are in the vicinity of the top dead center position or the position before the top dead center position as the stable position, the stable state is maintained. The stopper has a locking structure using elasticity such as a spring. For this reason, even if a strong locking force is applied, if a strong force is applied to the rack mount member 300 in a stable state, the locking force of the stopper cannot be withstood and the engagement is released, and the rack mount member 300 is flat. May move in a direction to return to a proper posture, and there is a risk of an accident such as pinching a hand as a result of this movement contrary to the intention of the user.

On the other hand, the stopper received in the posture shown in FIG. 6 does not use a spring, but uses a stopper formed by a protrusion or the like that restricts the rotational position of the first link lever 310-3 and the second link lever 310-4. Therefore, it is possible to prevent the occurrence of an accident in which the rack mount member 300 rotates in the direction returning from the tilt-up state against the user's will.
A protrusion 310-5 shown in FIG. 8 is a protrusion for constituting this stopper. The protrusion 310-6 formed on the first link lever 310-3 acts as a handle for rotating the first link lever 310-3 in the folding direction from the tilted-up state.

  The rack mount member 300 has a rack mount surface 300-1 parallel to the surface including the axis of the first slide rail 310, and screw holes 311 (see FIGS. 1 and 2) are formed in the rack mount surface 300-1. The The dimension L (FIGS. 1 and 2) between the centers of the screw holes 311 is selected to be a dimension conforming to the rack mount standard. In the rack mount standard, the standard rack standard is 19 inches. Therefore, by selecting the dimension L as 19 inches, various modules made in accordance with this standard can be mounted on the rack mount member 300.

  9 to 12 show examples of module mounting. The module 400 shown in FIGS. 9 to 11 can be, for example, a sound source device or an effector. According to the present invention, as shown in FIG. 9, the module 400 can be arranged in the center, or as shown in FIG. 10, it can be arranged close to one of the ends. If you place it close to one of them, you can get an empty space at the other end. For example, if you place a stand in this empty space, you can place a laptop, etc. You can create a situation to perform. FIG. 11 shows a tilt-up state, and FIG. 12 shows a tilt-down state.

  Used in the field of electronic keyboard instruments.

The top view for demonstrating one Example of the keyboard apparatus by this invention. The front view of FIG. The side view of FIG. Sectional drawing for demonstrating the detail of the 1st slide rail used for this invention. Sectional drawing for demonstrating the structure of the connection part of the 1st slide rail and rack mount member which were used for this invention. Sectional drawing for demonstrating the structure of the connection part of the 2nd slide rail and rack mount member which were used for this invention. The side view for demonstrating the condition which accommodated the rack mount member attached to the keyboard apparatus by this invention in the flat attitude | position. The side view for demonstrating the condition in the middle of tilting up the rack mount member attached to the keyboard apparatus by this invention. The front view for demonstrating the condition which mounted the module in the keyboard apparatus by this invention. The front view for demonstrating the state which changed the position of the module mounted by the keyboard apparatus of this invention. The side view for demonstrating the state which tilted up the module mounted by the keyboard apparatus of this invention. The side view for demonstrating that the module mounted with the keyboard apparatus by this invention can be made into a flat attitude | position.

Explanation of symbols

100 Base 310 Second slide rail 200 Keyboard 310-1 Groove 201 Top plate 310-2 Slider 202 Back plate 310-3 First link lever 300 Rack mount member 310-4 Second link lever 300-1 Rack mount surface 310- 5 Projection 301 First slide rail 310-6 Projection piece 301-1 Groove 311 Screw hole 302 Connecting member 302-2 Arc surface

Claims (3)

A. A base with a rectangular plane;
B. A keyboard mounted in a posture that closes the half of the short side direction from one long side to the plane of this base;
C. A first slide rail disposed along the back of the keyboard;
D. A second slide rail disposed along the other long side of the base;
E. A pair of rack mount members supported by the first slide rail and the second slide rail so as to be movable in the key arrangement direction of the keyboard ,
Each of the pair of rack mount members is supported at one end side so as to be rotatable about the axis line in a direction orthogonal to the axis line of the first slide rail, and the other end side via two link levers. A keyboard device characterized in that the keyboard device is connected to the second slide rail .   2. The keyboard device according to claim 1, wherein one end of each of the pair of rack mount members is slidable in an axial direction of the first slide rail and is perpendicular to an axis of the first slide rail. A keyboard device characterized in that it is supported so as to be rotatable about the axis and the other end is slidably connected to the second slide rail via two link levers. . 3. The keyboard device according to claim 1, wherein the pair of rack mount members are attached to the second slide rail while maintaining a predetermined interval, and the axes of the first slide rail and the second slide rail are provided. A rack mount surface that is parallel to the rack mount surface, and a screw hole that is formed on the rack mount surface so that a center position is maintained between each of the one rack mount member and the other rack mount member in accordance with a rack mount standard. A keyboard device characterized by that.

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