JP5540484B2 - Double panel structure of electronic keyboard instrument - Google Patents

Description

  The present invention relates to a double panel structure of an electronic keyboard instrument in which a cover body is disposed on a panel surface of a casing of an electronic musical instrument body.

  2. Description of the Related Art Conventionally, a structure in which a surface of a casing of an electronic keyboard instrument is used as a panel surface and a cover body is disposed on the panel surface is known (Patent Document 1 below).

In this structure, in the vicinity of the center in the key arrangement direction, a recess is provided on the panel surface of the housing, an LCD is provided there, and a cover is covered from above to fill the recess.
JP 2005-191272 A

  However, in the structure of the above-mentioned patent document 1, in order to ensure the operability of the operation element on the panel surface, the cover body cannot be disposed at a position where the operation element is present. Further, since the portion of the housing where the cover body is disposed is a recess, the rigidity of the housing is reduced. When the casing is made of resin, it is particularly necessary to consider securing rigidity. Further, once the cover body is attached, it becomes a part of the determined appearance, and the appearance cannot be changed.

  The present invention has been made in order to solve the above-mentioned problems of the prior art, and its purpose is to improve the rigidity of the panel portion around the operation element while ensuring the operability of the operation portion, and to select the cover body. Another object of the present invention is to provide a double panel structure of an electronic keyboard instrument that can change the external appearance of a musical instrument while sharing a casing and can easily manufacture different types of instruments.

In order to achieve the above object, a double panel structure of an electronic keyboard instrument according to claim 1 of the present invention includes a housing (10) made of resin and having a panel surface (11) as an upper surface, and an operation unit. (15a), and a plurality of operating elements (15) disposed on the panel surface so that at least the operating portion protrudes from the panel surface of the housing, and the plurality of operating elements A through hole (25) corresponding to the body operation unit is formed, and has a cover body (20) which is long in the key arrangement direction and configured to be detachable from the panel surface. By attaching to the panel surface, it covers the panel surface so as to cover at least a part (11a) of the panel surface, and from the through hole of the cover body, the operation part of the corresponding operating body is provided. It is configured to project, and the front and rear parts of the cover body The front vertical wall portion and the rear vertical wall portion bent downward are integrally formed, and the attachment pieces for attaching to the panel surface are the lower end of the front vertical wall portion and the lower end of the rear vertical wall portion, respectively. And a mounting hole is formed near the boundary between the panel surface and the keyboard portion in the housing, and the front vertical wall of the cover body is mounted on the panel surface when the cover body is mounted on the panel surface. The attachment piece extended from the lower end of the part is inserted into the housing from the attachment hole and extends rearward , and there are a plurality of types (20A to 20C) of the cover body, One selected from a plurality of types is mounted on the panel surface.

Preferably, at least one of the operating elements is disposed, has a common outer shape, and includes a plurality of base bodies (31) disposed on the panel surface, and each of the base bodies on the panel surface. by changing the arrangement position of, Ru is configured to allow changing the arrangement position of the operating element body.

  In addition, the code | symbol in the said parenthesis is an illustration.

  According to the first aspect of the present invention, the rigidity of the panel portion around the operation element is improved while ensuring the operability of the operation portion, and the appearance of the musical instrument can be changed while sharing the housing by selecting the cover body. Thus, it is possible to facilitate manufacture of different models.

According to the second aspect , it is possible to change the arrangement of the operating elements while sharing the casing, thereby facilitating the manufacture of different models.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
FIG. 1A is a plan view of an electronic keyboard instrument to which a double panel structure according to a first embodiment of the present invention is applied. The electronic keyboard instrument 1 includes a casing 10 that forms the exterior of the instrument body, and a keyboard unit KB that includes a plurality of white keys and black keys disposed in the front half of the instrument body. The casing 10 is covered with a cover body 20.

  Hereinafter, the side of the keyboard instrument 1 on which the keyboard part KB is disposed, that is, the player side is the front side, and the left and right direction is based on the direction viewed from the player. Also in the vertical direction, the direction in the normal placement state of the keyboard instrument 1 at the time of use is used as a reference.

  1B is a plan view of the cover body 20, and FIG. 1C is a plan view of the keyboard instrument 1 with the cover body 20 removed. 2A and 2B are schematic cross-sectional views along the line AA in FIG. FIG. 2A shows a state in which the cover body 20 is being attached to the housing 10, and FIG. 2B shows a state in which the cover body 20 is attached to the housing 10.

  The housing 10 is integrally formed by injection molding with resin, and is fixed to the upper side of the bottom plate portion 18 (see FIGS. 2A and 2B). The casing 10 covers the bottom plate part 18 from the upper side and the front, rear, left and right sides except for the opening part where the keyboard part KB is disposed. In the rear half of the instrument body, an electronic component (not shown) is accommodated in an internal space formed by the housing 10 and the bottom plate 18.

  As shown in FIG. 1C, the panel surface 11 that is the upper surface of the housing 10 includes a first panel surface 11 a that is hidden when the cover body 20 is attached, and a second panel surface that is exposed regardless of the presence or absence of the cover body 20. 11b. The left side surface 10 a, the right side surface 10 b, and the back surface 10 c of the housing 10 are connected to the panel surface 11.

  As shown in FIG. 1C and FIG. 2A, the first panel surface 11 a of the panel surface 11 is provided with speakers 13 at the left and right ends. Mounting holes 12 for mounting the cover body 20 are formed in the first panel surface 11a, in the vicinity of the boundary with the second panel surface 11b, in a total of three locations in the left-right direction center and the left and right ends. Also, attachment holes 16 for attaching the cover body 20 are formed in the first panel surface 11a in the vicinity of the boundary with the keyboard part KB and in a total of three places, the center in the left-right direction and the left and right end parts. (See FIG. 2 (a)).

  In addition, a display unit 14 such as an LCD and a plurality of operation elements 15 are disposed at the center in the left-right direction of the first panel surface 11a. Although part of the operating element 15 is illustrated as an example, the arrangement location and the number of arrangement are not limited to those illustrated. Further, it is sufficient that at least the operating element 15 is disposed on the first panel surface 11a, and in addition to this, there may be one disposed on the second panel surface 11b.

  As shown in FIGS. 2A and 2B, the operating element 15 has an operation portion 15a protruding upward, and the operation portion 15a protrudes upward from the first panel surface 11a. Although the operation body 15 assumes that the operation part 15a is rotationally operated, not only this but an operation method, a function, a size, and a shape are not ask | required, and multiple types may be mixed.

  As shown in FIGS. 1A, 1B, and 2A, the cover body 20 is long in the key arrangement direction, and the length in the left-right direction is the same as the width of the keyboard part KB. At the rear portion of the cover body 20, attachment pieces 22 are integrally extended at three locations corresponding to the attachment holes 12 in the first panel surface 11a. The outer shape of the cover body 20 in a plan view excluding the attachment piece 22 is substantially coincident with the first panel surface 11a.

  A sound emitting hole 23 is formed in the cover body 20 at a position corresponding to the two speakers 13 on the first panel surface 11a. In addition, the cover body 20 is formed with a through hole 25 through which the operation portion 15 a passes in correspondence with the operation portion 15 a of each operation element 15. The cover body 20 is integrally formed by injection molding with a light-transmitting resin and has a uniform thickness as a whole, but only the portion corresponding to the display unit 14 is a thin-walled window portion 24 formed thin. . The resin constituting the cover body 20 is black or the like and is semi-transparent, and the light of the display unit 14 is visually recognized through the thin window 24, but the other part of the first panel surface 11a is hardly visible. It has a function of transmitting or blocking light.

  As shown in FIG. 2 (a), the longitudinal cross-section (side view) shape of the cover body 20 has a gentle flat portion along the first panel surface 11a, and the front vertical wall portion 28 is downward in the front portion. A horizontal attachment piece 26 is formed to extend rearward from the lower end of the front vertical wall portion 28. The attachment pieces 26 are integrally formed at three locations corresponding to the attachment holes 16. On the other hand, in the rear part of the cover body 20, the rear vertical wall portion 29 extends straight downward, and the above-described attachment piece 22 is formed to extend from the lower end of the rear vertical wall portion 29. In addition, about the relationship between the attachment hole 16 and the attachment piece 26, and the relationship between the attachment hole 12 and the attachment piece 22, all should just correspond to each other, and the number is not restricted to three places, respectively.

  Since the front vertical wall portion 28 and the rear vertical wall portion 29 are extended in the vertical direction, the bending rigidity in the key arrangement direction of the cover body 20 is increased. From the viewpoint of increasing the rigidity, the front vertical wall portion 28 and the rear vertical wall portion 29 need only have a vertical component, and are not necessarily parallel to the vertical direction.

  The cover body 20 is attached to the housing 10 when the keyboard instrument 1 is manufactured or at the user's house. First, the attachment piece 22 is inserted into the corresponding attachment hole 12, and in parallel therewith, the attachment piece 26 is inserted into the corresponding attachment hole 16 and locked. And let the cover body 20 be the state which accumulated on the 1st panel surface 11a. As a result, the operating portion 15 a of each operating element 15 passes through the corresponding through hole 25 and protrudes above the upper surface 21 of the cover body 20. The lower surface 27 of the cover body 20 is close to or abuts on the first panel surface 11a.

  As shown in FIG. 2B, the cover body 20 is fixed to the housing 10 by screwing the attachment piece 22 to the attachment portion 10 d of the housing 10 with the screw 17. Here, it is assumed that a hole for passing the screw 17 and performing the screwing operation is formed in the bottom plate portion 18, and the operator can perform the screwing operation from below. In addition, you may comprise so that the upper surface 21 of the cover body 20 and the 2nd panel surface 11b may be connected flushly in the state in which the cover body 20 was mounted | worn.

  By the way, as shown to Fig.2 (a), the cover body 20 has prepared several types, for example, cover bodies 20A, 20B, and 20C. These cover bodies 20 have the same basic configuration, and are all detachable from the housing 10 in the same manner. As long as it is detachable from the housing 10, the content of the cover body 20 is not limited, and for example, the color and design of the cover body 20 may be different. An embodiment in which one of these cover bodies 20 is selected according to the user's order and is mounted at the time of shipment is conceivable. In addition, an embodiment in which the user purchases a plurality of cover bodies 20 as a set with the instrument body and the user wears a favorite cover body 20 is also conceivable. Thus, the appearance of the keyboard instrument 1 can be changed using the same casing 10.

  According to the present embodiment, since the cover body 20 covers the first panel surface 11 a in which the operating element 15 is disposed in the housing 10, a double panel structure is formed and the front of the cover body 20 is also provided. Since the front vertical wall portion 28 and the rear vertical wall portion 29 are formed integrally with each other, the rigidity in the longitudinal direction of the cover body 20 is increased. As a result, the rigidity of the first panel surface 11a of the housing 10 can be improved. Furthermore, since the operation part 15a protrudes through the through hole 25, there is no hindrance to the operation. Therefore, it is possible to improve the rigidity of the first panel surface 11a of the housing 10 around the operating body 15 while ensuring the operability of the operation unit 15a.

  In addition, since the appearance of the musical instrument can be changed while sharing the housing 10 by selecting the cover body 20 to be mounted, it is possible to easily manufacture different types of musical instruments having different designs.

(Second Embodiment)
FIG. 3 is a partial plan view of an electronic keyboard instrument to which the double panel structure according to the second embodiment of the present invention is applied. 4A and 4B are schematic partial cross-sectional views corresponding to FIGS. 2A and 2B and taken along line BB in FIG. Also in the present embodiment, the electronic keyboard instrument 1 has the housing 10 and the cover body 20, and FIG. 3 shows a plan view of the central portion in the left-right direction of the keyboard instrument 1 with the cover body 20 removed. .

  In the present embodiment, the operating element 15 and the display unit 14 are respectively disposed on the base bodies 31 and 32, and the base bodies 31 and 32 are disposed on the first panel surface 11 a of the housing 10. This is different from the first embodiment. As for the housing 10, the first panel surface 11a is formed by forming a step with respect to the second panel surface 11b and is a recess when viewed from the second panel surface 11b. It is different from the form. On the other hand, the cover body 20 is different from that in the first embodiment in that the position and number of the through holes 25 corresponding to the positions and number of the operation body 15 are different. There are differences depending on the difference in the shape of the panel surface 11, but the others are the same.

  As shown in FIGS. 3, 4 (a), and (b), one or more operating elements 15 are arranged on a base body 31, and a plurality of such base bodies 31 are provided. The display unit 14 is disposed on the base body 32. Various combinations are possible regardless of the arrangement position and the number of the operating elements 15 on the base bodies 31 and 32. The base bodies 31 and 32 are disposed on the first panel surface 11a. Although not shown in the figure, it is assumed that the wiring penetrates the first panel surface 11a and is electrically connected to the electronic components of the musical instrument body.

  As shown in FIG. 3 and FIG. 4A, the cover body 20 is located near the boundary between the first panel surface 11a and the second panel surface 11b, and in a total of three locations, the center in the left-right direction and the left and right ends. A mounting hole 33 for mounting is formed. These three attachment holes 33 correspond to the attachment holes 12 and only the central one is shown in the figure, but all are configured similarly.

  The outer shape of each base body 31 and the configuration of the parts related to the attachment are the same, and the positions of each base body 31 can be changed and arranged, and the number of replacement patterns corresponding to the type of instrument is provided. . A plurality of types of cover bodies 20 provided with through holes 25 at corresponding positions are provided according to the patterns (not shown). Accordingly, at least the cover body 20 having a shape that matches the arrangement pattern of the selected base body 31 is selected and mounted on the housing 10. However, as in the first embodiment, a plurality of types of cover bodies 20 having different colors and designs may be provided between the cover bodies 20 having the same through-holes 25 provided.

  The attachment / detachment of the cover body 20 to / from the housing 10 is the same as in the first embodiment. That is, it is the same as that of the first embodiment except that the mounting hole with which the mounting piece 22 is engaged becomes the mounting hole 33 instead of the mounting hole 12. Moreover, you may comprise so that the upper surface 21 and the 2nd panel surface 11b of the cover body 20 may be flush | connected in the state in which the cover body 20 was mounted | worn.

  Further, the base body 32 on which the display unit 14 is disposed is configured such that the number of positions that can be disposed can be selected according to the type of musical instrument. For example, several types of positions can be selected in the key arrangement direction. Accordingly, the thin window 24 of each type of cover body 20 is provided at a corresponding position. Therefore, the visibility of the display unit 14 is ensured. In order to make the design of the thin-walled window portion 24 common, the thin-walled window portion 24 should be provided in a wide area that can cover all the positions of the display portion 14 that may vary depending on the position of the base body 32. Good. If the design of the thin-walled window portion 24 is made common, the cover body 20 can be made common for models that differ only in the position of the display portion 14.

  According to the present embodiment, the arrangement position of the base body 31 is variable, and the type of the cover body 20 is provided in accordance with the arrangement position. Therefore, the arrangement of the operation body 15 can be changed while the housing 10 is shared. Thus, it is possible to easily manufacture different types of musical instruments in which the operation elements 15 are arranged differently.

  In the first and second embodiments, from the viewpoint of improving the rigidity around the operating element body 15 while ensuring the operability of the operating section 15a, the operating element body 15 has at least the operating section 15a, What is necessary is just to be arrange | positioned so that it may protrude from the panel surface 11 of the housing | casing 10. FIG.

  As for the display unit 14, similarly to the operation unit 15 a of the operating body 15, the cover body 20 is provided with a penetrating window portion corresponding to the display unit 14 instead of the thin-walled window portion 24. The display unit 14 may be directly exposed. If it does so, it is also possible to comprise the cover body 20 with light-shielding materials, such as a metal.

The top view (figure (b)) of the electronic keyboard musical instrument to which the double panel structure based on the 1st Embodiment of this invention is applied, the top view (figure (b)) of a cover body, the state which removed the cover body It is a top view (figure (c)) of the keyboard musical instrument 1 of. FIG. 1A schematically shows a state in which the cover body is attached to the housing (FIG. (B)) during the attachment of the cover body to the housing along the line AA in FIG. It is sectional drawing. It is a fragmentary top view of the electronic keyboard musical instrument to which the double panel structure based on the 2nd Embodiment of this invention is applied. FIG. 5 is a schematic cross-sectional view of the cover body being attached to the housing (FIG. (A)) and the cover body being attached to the housing (FIG. (B)) along the line BB of FIG. is there.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Electronic keyboard instrument, 10 Case, 11 Panel surface, 11a 1st panel surface, 15 Control element body, 15a Operation part, 20 Cover body, 25 Through hole, 28 Front vertical wall part, 29 Rear vertical wall part, 31 Base body

Claims (2)

A housing made of resin and having a panel surface which is the upper surface;
A plurality of operating elements arranged on the panel surface so that at least the operating unit protrudes from the panel surface of the housing;
A through hole corresponding to the operation portion of each of the plurality of operating elements, and having a cover body that is long in the key arrangement direction and configured to be detachable from the panel surface;
The cover body is attached to the panel surface so as to overlap the panel surface so as to cover at least a part of the panel surface, and from the through hole of the cover body, the operation portion of the corresponding operator body Is configured to protrude,
A front vertical wall portion and a rear vertical wall portion bent downward are integrally formed on the front portion and the rear portion of the cover body, respectively, and an attachment piece for attaching to the panel surface is the front vertical wall portion. Extending from each of the lower end of the rear vertical wall portion,
A mounting hole is formed in the vicinity of the boundary between the panel surface and the keyboard portion in the housing,
In the mounting state of the cover body on the panel surface, the attachment piece extending from the lower end of the front vertical wall portion of the cover body is inserted into the inside of the housing from the attachment hole and faces rearward. Extending,
There are a plurality of types of cover bodies, and one selected from the plurality of types is mounted on the panel surface.   At least one operating element is arranged, has a common outer shape, and includes a plurality of base bodies arranged on the panel surface, and changes an arrangement position of each base body on the panel surface. 2. The double panel structure of an electronic keyboard instrument according to claim 1, wherein the arrangement position of the operating element is changeable.

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