JP4032979B2 - Electronic keyboard instrument - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic keyboard instrument including a musical instrument main body having a keyboard and a lid that covers and protects the surface of the musical instrument main body.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, some electronic keyboard musical instruments with a keyboard are composed of a musical instrument main body provided with a keyboard and a lid. In such an electronic keyboard musical instrument, the lid covers the surface of the musical instrument main body. In addition to protection, there are those used for other purposes (for example, Patent Document 1).
[0003]
In this electronic keyboard instrument, the lid is formed in a two-part structure, and the two-part lid can be used as a lid by being attached to the instrument body so as to cover the surface of the instrument body. Further, when the lid divided into two is removed from the musical instrument main body, it can be used as a leg by attaching both side portions on the lower surface of the musical instrument main body to the upper end surface of the lid, with the predetermined interval maintained. In this case, the musical instrument main body is supported by a leg made of a lid so that the keyboard is horizontal.
[0004]
[Problems to be solved by the invention]
However, in an electronic keyboard instrument equipped with such a keyboard, when the performer performs, the free end portion on the performer side of the keyboard moves up and down with the base end of the rear end as a fulcrum. Considering the key movement range, the vertical dimension of the instrument body is set to be large. For this reason, a space portion is formed below the base end portion of the keyboard, and there is a problem that the instrument body becomes larger than necessary.
[0005]
SUMMARY OF THE INVENTION
The present invention has been made to cope with the above-described problems, and an object of the present invention is to provide an electronic keyboard instrument that can be miniaturized and can be used for purposes other than covering the instrument body with a lid. is there.
[0006]
To achieve the above objects, features on the configuration of the electronic keyboard instrument according to the present invention, the base end portion formed at the rear portion of the keyboard is located at the bottom surface near the free end proximal of the keyboard and musical instruments body you supported by tilting the keyboard to be located above the part, it is possible to cover the surface of the instrument while maintaining a close distance to the surface of the inclined keyboard, the instrument e Bei a lid removable for placing the lid on a level surface, when placing the instrument on the top surface of the cover in that state, so that the surface of the keyboard is substantially horizontal, the instrument and the lid It is in the configuration .
[0007]
In the electronic keyboard musical instrument of the present invention configured as described above, the musical instrument main body has the base end side of the keyboard composed of the white key and the black key positioned in the vicinity of the bottom surface, and the free end of the keyboard from the base end. Also, the keyboard is tilted and supported so that it is positioned above. Therefore, there is no wasted space on the base end side of the instrument body, and a space necessary for moving the keys of the keyboard up and down can be secured on the free end side. As a result, the instrument body can be set to the minimum necessary size. Further, since the lid can cover the surface of the musical instrument main body while keeping a close distance with respect to the surface of the keyboard, only the minimum necessary space can be formed between the keyboard and the lid. . Therefore, the entire electronic keyboard instrument can be reduced in size.
[0009]
In this electronic keyboard instrument, the instrument body and the lid are configured so that the surface of the keyboard is substantially horizontal when the instrument body is placed on a lid placed on a horizontal plane. This can be achieved by setting the difference between the height of the front end face and the height of the rear end face of the instrument body to be substantially equal to the difference between the height of the front end face and the height of the rear end face of the lid. In this case, if the free end of the white key protrudes upward from the upper end of the front end surface of the instrument body, the height of each part is set in consideration of the protruding height. According to this, when playing an electronic keyboard instrument, remove the lid from the instrument body, place it on a table with the top surface horizontal, and place the instrument body on the lid so that the keyboard is almost horizontal. Can be. This facilitates playing the electronic keyboard instrument.
[0010]
In addition, another structural feature of the electronic keyboard instrument according to the present invention is that the engaging portion is provided on the lid, and the engaging portion is engaged with the predetermined side portion of the lid positioned on the horizontal plane and the lid standing up. By engaging the rear end of the instrument main body with the instrument, the rear end of the instrument main body is supported by the lid and the front end of the instrument main body is supported by the horizontal plane with the keyboard surface approximately horizontal. In addition, the lid can be used as a music rest. According to this, in addition to the function of the lid as a lid for covering the surface of the instrument body, it has a function as a support base for supporting the instrument body in a state where the keyboard is leveled, and as a music stand It will also have the function of. Therefore, the practical effect is increased.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an electronic keyboard instrument M according to the present invention. The electronic keyboard instrument M is composed of a musical instrument main body 10 and a lid 20, and the musical instrument main body 10 is a keyboard composed of a case portion 12 having a leg portion 11, a plurality of white keys 16a, and black keys 16b. 16. The case portion 12 includes a lower case 13 serving as a support base for supporting the electronic keyboard instrument M, and an upper case 14 constituting an upper side portion of the peripheral side portion of the instrument body 10.
[0012]
The lower case 13 includes a bottom surface portion 13a and a peripheral side portion, and the leg portions 11 shown in FIG. 2 are provided at four corners on the lower surface of the bottom surface portion 13a. The leg 11 is formed in a cylindrical shape with a slightly tapered tip. And the upper edge part of the lower case 13 is formed in the step part 13b by which the inner peripheral side was notched. The upper case 14 is formed in a frame shape, and the lower end edge thereof is formed in a stepped portion 14c that is cut out on the outer peripheral side. The upper case 14 is assembled to the lower case 13 by engaging the step 14 c with the step 13 b of the lower case 13.
[0013]
A music stand 15 for placing a musical score extends forward (performer side) from the rear end (left side in FIG. 1) of the upper edge of the upper case 14, and the front end of the music stand 15 A music score stop portion 15a made of a protrusion is formed on the top. A frame portion 14a extends rearward from a front end portion (right side in FIG. 1) of the upper end edge portion of the upper case 14. Further, the upper end edge of the upper case 14 is formed in a stepped portion 14b whose outer peripheral side is cut out.
[0014]
The white key 16a and the black key 16b are attached to the case portion 12 so as to be able to swing up and down with the rear end common key base end portion 16c supported by the support portion 17, respectively. The white key 16a has a key common base end portion 16c positioned below the music stand 15 and a free end portion 16d positioned above the frame portion 14a. Accordingly, the free end portion 16d of the white key 16a moves up and down above the frame portion 14a. The support portion 17 is integrally formed with the lower case 13 by integral molding, and the height thereof is set low so that the key common base end portion 16c and the bottom surface of the case portion 12 are close to each other. .
[0015]
For this reason, the keyboard 16 is disposed in an inclined state so that the free end portion 16d side is positioned higher than the key common base end portion 16c. The white key 16a is arranged so that the lower end portion on the free end side thereof and the bottom surface of the case portion 12 are close to each other when the key is pressed. In addition, the key common base end portion 16c is arranged so that two white keys 16a are connected to each other and two black keys 16b are stacked in three layers.
[0016]
The lid 20 includes a ceiling surface portion and front and rear side portions, and a lower end edge portion of the side portion is formed in a stepped portion 20a in which an inner peripheral side is cut out. The lid 20 is detachable from the musical instrument main body 10 and is attached to the musical instrument main body 10 in a state where the surface of the musical instrument main body 10 is covered by engaging the stepped portion 20a with the stepped portion 14b. Further, the upper side portion of the front end surface of the lid 20 is formed in a key free end facing inclined surface portion 20b inclined with respect to the ceiling surface portion and the front end surface.
[0017]
Engaging portions 21 that are orthogonal to the ceiling surface portion are provided on both side portions in the key arrangement direction on the front end side on the back surface (the lower surface and the inner peripheral surface of FIG. 1) of the lid 20. An engagement recess 21 a is formed on the rear end surface of the joint portion 21. The engaging recess 21a is formed in a shape and size into which the leg 11 can be inserted.
[0018]
Further, grip portions 22 each having a substantially triangular protruding piece are provided on both side portions in the key arrangement direction of the key free end facing inclined surface portion 20b on the surface of the lid 20 (upper surface and outer peripheral surface in FIG. 1). . The grip portion 22 is a part that the user holds by hand when performing the attaching / detaching operation of the lid 20 and the like, and a support for preventing rollover for stabilizing the lid 20 when the lid 20 is stood with the front end face down. Become a part.
[0019]
In addition, a frame-shaped handpiece 23 serving as a handle when the electronic keyboard instrument M is held is provided at the center in the key arrangement direction of the lower end edge at the rear end of the lid 20. A reinforcing groove 24 is provided on the rear end side of the surface of the lid 20 along the key arrangement direction. This groove part 24 is formed in a shape into which the leg part 11 can be inserted. The lid 20 is configured so that the distance between the back surface and the front surface of the keyboard 16 is a short distance when attached to the instrument body 10. Further, the grip portion 22 and the hand portion 23 are integrally formed with the lid 20 by integral molding.
[0020]
Although not shown, a printed circuit board on which a key switch and a circuit are formed is attached to a portion of the case portion 12 below the keyboard 16. Further, an operation panel provided with a plurality of operators and the like is provided in the vicinity of the keyboard 16 on the surface of the instrument body 20.
[0021]
When the electronic keyboard musical instrument M configured in this way is not used, the lid 20 is placed on the musical instrument body 10 while covering the surface of the musical instrument main body 10 by engaging the stepped portion 14b and the stepped portion 20a as shown in FIG. It is attached to the main body 10. As a result, it is possible to prevent dust from accumulating on the keyboard 16 or scratching the keyboard 16. Further, when taking out the electronic keyboard instrument M to the outside, the electronic keyboard instrument M is carried with the handpiece 23 with the lid 20 attached to the instrument body 10. In this case, the electronic keyboard instrument M is compact and easy to carry.
[0022]
Further, when performing using the electronic keyboard instrument M, the lid 20 is removed from the instrument body 10, the lid 20 is inverted back and forth, and placed on the upper surface of the table 25 in the state shown in FIG. Then, the two leg portions 11 provided on the rear end side of the case portion 12 are engaged with the key free end facing inclined surface portion 20b, and the two leg portions 11 provided on the front end side of the case portion 12 are grooved. The instrument body 10 is placed on the upper surface of the lid 20 while being positioned within the lid 24. The instrument body 10 and the lid 20 are configured so that the surface of the keyboard 16 is horizontal when installed as shown in FIG.
[0023]
That is, the total height of the rear end surface of the instrument body 10 and the front end surface of the lid 20 is slightly higher than the total height of the front end surface of the instrument body 10 and the rear end surface of the lid 20. Is set to Therefore, in the state shown in FIG. 3, the surface of the keyboard 16 becomes horizontal, and the electronic keyboard instrument M is in a state where it is easy for the performer to perform.
[0024]
Further, when the musical score is viewed when performing, as shown in FIGS. 4 and 5, the lid 20 is erected in the vertical direction with the front end surface of the lid 20 being in contact with the upper surface of the base 25. Then, the musical instrument main body 10 is placed on the upper surface of the base 25 in a state where the two leg portions 11 provided on the rear end side of the case portion 12 are positioned in the recess 21 a of the engaging portion 21. The engaging portion 21 is provided at a position where the surface of the keyboard 16 becomes horizontal when the instrument main body 10 and the lid 20 are installed as shown in FIGS.
[0025]
Then, the musical score 26 is placed on the musical score stand 15 with the lower end portion of the musical score 26 placed on the musical score stopper 15 a and the upper portion thereof tilted toward the hand support portion 23. The performer can play the electronic keyboard instrument M while watching the music score 26. In this case, since the grip portion 22 of the lid 20 is in contact with the upper surface of the table 25 together with the front end surface, the lid 20 can maintain a standing posture in a stable state. Further, the music score 26 can maintain a stable posture by the support of the music score stopper 15 a and the hand support 23.
[0026]
Thus, according to this embodiment, when the electronic keyboard instrument M is not used, the lid 16 can be attached to the instrument body 10 to protect the keyboard 16. As a result, it is possible to prevent the keyboard 16 from being dusted or scratched. At this time, the electronic keyboard instrument M can be stored even in a small place because it is in a compact state with no useless space inside. Furthermore, since the hand portion 23 is provided, it is convenient to carry.
[0027]
When performing using the electronic keyboard instrument M, the lid 20 is used as a stand, and the instrument body 10 is placed on the lid 20 to enable the performance. In this case, the instrument main body 10 is supported by the lid 20 in a stable state by the engagement between the rear end side leg portion 11 and the key free end facing inclined surface portion 20b and the front end side leg portion 11 and the groove portion 24. Is done. At that time, since the surface of the keyboard 16 becomes horizontal, it is possible to perform the performance in an easy-to-operate state.
[0028]
Further, when playing using the electronic keyboard instrument M while looking at the musical score 26, the lid 20 is placed in an upright position with the front end surface of the lid 20 facing downward, and the leg 11 on the rear end side of the engaging portion 21. The lid 20 can be used as a music rest by engaging the engaging recess 21a and supporting the instrument body 10 on the lid 20. Also in this case, the surface of the keyboard 16 becomes horizontal, and the electronic keyboard instrument M becomes easy to play. As described above, the electronic keyboard instrument M according to the present embodiment is effective because it can be used in various ways by changing the posture of the lid 20 according to circumstances.
[0029]
Moreover, each part which comprises the electronic keyboard musical instrument M by this invention can be changed suitably. For example, in the above-described embodiment, the lid 20 is configured by the ceiling surface portion and the front and rear side portions. However, the side portion may be provided all around the lid and the lid may be formed in a box shape. This can more reliably prevent dust from accumulating on the surface of the instrument body 10. Moreover, the shape of the leg part 11, the engaging part 21, and another part is not restricted to what was mentioned above, and can be changed.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an electronic keyboard instrument according to an embodiment of the present invention.
FIG. 2 is a perspective view showing a leg portion.
FIG. 3 is a longitudinal sectional view showing a state where a musical instrument main body is supported with a lid as a base.
FIG. 4 is a perspective view showing a state in which a musical instrument main body is instructed with a lid as a music stand.
5 is a cross-sectional view taken along the line 5-5 in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Musical instrument main body, 12 ... Case part, 15 ... Music stand, 15a ... Music stop part, 16 ... Keyboard, 16a ... White key, 16b ... Black key, 16c ... Key common base end part, 16d ... Free end part, 20 ... Lid, 20b... Slope portion facing the key free end, 21... Engaging portion, 21a... Engaging recess, 24.

Claims (3)

The base end portion formed at the rear portion of the keyboard is located at the bottom surface near the musical instrument you supported by tilting the keyboard such that the free end portion of the keyboard is positioned higher than the proximal portion The body,
The close proximity to the surface of the inclined keyboard can cover the surface of the instrument while maintaining a Bei example a removable lid with respect to said instrument body,
The instrument body and the lid are configured such that when the lid is placed on a horizontal surface and the instrument body is placed on the upper surface of the lid in that state, the surface of the keyboard is substantially horizontal. Electronic keyboard instrument to play. An engagement portion is provided on the lid, and by engaging a rear end portion of the instrument main body with the engagement portion in a state where the lid is raised with a predetermined side portion of the lid positioned on a horizontal plane, With the surface of the keyboard substantially horizontal, the rear end of the instrument body can be supported by the lid, the front end of the instrument body can be supported by the horizontal surface, and the lid can be used as a music rest. The electronic keyboard instrument according to claim 1, wherein the electronic keyboard instrument can be used . A musical instrument main body that tilts and supports the keyboard so that the base end formed at the rear end of the keyboard is positioned near the bottom surface, and the free end of the keyboard is positioned above the base end;
In an electronic keyboard instrument that can cover the surface of the instrument body in a state of being kept at a close distance to the surface of the tilted keyboard, and has a lid that can be attached to and detached from the instrument body.
An engagement portion is provided on the lid, and by engaging a rear end portion of the instrument main body with the engagement portion in a state where the lid is raised with a predetermined side portion of the lid positioned on a horizontal plane, With the surface of the keyboard substantially horizontal, the rear end of the instrument body can be supported by the lid, the front end of the instrument body can be supported by the horizontal surface, and the lid can be used as a music stand. child keyboard instrument collector, characterized in that to be able.

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