Cases and keyboard instruments

Abstract

To provide a case that prevents a sheet excellently stuck on an exterior member from being peeled off, and a keyboard instrument that comprises the case.SOLUTION: A case 200 (right side face case 240) of a keyboard instrument 10 comprises: an exterior member 100 which comprises a first exterior surface 110 including an outer surface of a first sheet 70 and a second exterior surface 120 connected to the first exterior surface 110; and a fitted member 300 which has opposed surfaces (a lower surface 313 of a top plate part 310 and an upper surface 328 of a bottom plate part 324) fitted with the exterior member 100 and arranged opposite to the second exterior surface 120, wherein projection ends (projection ends 313a, 313b, 328a, 328b, etc.) of the opposed surfaces in a cross sectional view protrude from the first exterior surface 110.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a case and a keyboard instrument. [Background technology]

[0002] Conventionally, cases for keyboard instruments and the like have been provided with exterior members to which sheets are attached for decoration and protection of the members. For example, Patent Document 1 discloses a keyboard instrument with legs in which two plates are covered with a sheet from the outer surface to the outer edge surface, with the ends of the sheet folded back to the inner surface of each plate, and the inner surfaces of the plates are attached together to form a single side plate. This prevents the ends of the sheet from appearing on the outer surface, and reduces peeling of the sheet from the ends. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-60983 A Summary of the Invention [Problem to be solved by the invention]

[0004] When the exterior component is a rectangular plate material, it is relatively easy to attach a sheet so as to cover the outer surface from the outer edge surface; however, when the exterior component has curved or inclined portions, it can be difficult to attach a sheet so as to cover the entire surface.

[0005] An object of the present invention is to provide a case in which a sheet attached to an exterior member is prevented from peeling off, and a keyboard instrument equipped with this case. [Means for solving the problem]

[0006] The case according to the present invention has a front surface, a side surface, and a rear surface including an outer surface of the first sheet. ofand a mounting member having a first surface having a first surface and a second surface having at least one of an upper surface and a lower surface connected to the first surface, and a mounting member having an opposing surface to which the mounting member is attached and which faces the second surface and is disposed in close proximity to the second surface, wherein a tip of the opposing surface in a cross-sectional view when the mounting member and the mounting member are cut in the vertical direction is projected beyond the first surface. The side surface is connected to the front surface and the rear surface, and a protruding amount of the tip protruding from the rear surface is greater than a protruding amount of the tip protruding from the front surface and a protruding amount of the tip protruding from the side surface. .

[0007] A keyboard instrument according to the present invention comprises a keyboard and the above-mentioned case arranged as an arm of the keyboard. The housing and the mounting member are provided with the above-mentioned case, which is disposed to the side of the keyboard. Effect of the Invention

[0008] According to the present invention, it is possible to provide a case in which a sheet attached to an exterior member is prevented from peeling off easily, and a keyboard instrument including this case. [Brief description of the drawings]

[0009] [Figure 1] 1 is a perspective view showing a keyboard instrument equipped with a case according to an embodiment of the present invention. [Diagram 2] FIG. 2 is an upper front perspective view showing the periphery of the right side case of the keyboard instrument according to the embodiment of the present invention. [Diagram 3] FIG. 2 is a lower rear perspective view showing the periphery of the right side case of the keyboard instrument according to the embodiment of the present invention. [Figure 4] FIG. 2 is an exploded perspective view of the right side case of the keyboard instrument according to the embodiment of the present invention. [Diagram 5] 1 is an exploded perspective view seen from the inside surface side, showing an exterior member main body for a right side case of a keyboard instrument according to an embodiment of the present invention and a sheet to be attached to the exterior member main body. FIG. [Figure 6] 1 is a perspective view of an exterior member for a right side case of a keyboard instrument according to an embodiment of the present invention, as viewed from the inside surface side. FIG. [Figure 7]1 is a rear perspective view of a mounting member for a right side case of a keyboard instrument according to an embodiment of the present invention; FIG. [Figure 8] 8 is a cross-sectional view of the right side case of the keyboard instrument according to the embodiment of the present invention, corresponding to the cross section VIII-VIII of FIG. 7. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. A keyboard instrument 10 as an electronic piano shown in FIG. 1 includes a full-size (88-key) keyboard 5 having a plurality of white keys 3 and a plurality of black keys 4 as a plurality of keys, and a case 200. In the following description, in the electronic keyboard instrument 10, with the keyboard 5 arranged at the front side, the front side (near side) in the front-rear direction FB of the keys of the keyboard 5 is the front side F, the rear side (rear side) in the front-rear direction FB of the keys is the rear side B, the left side facing the keyboard 5 is the left side L, the right side is the right side R, the arrangement direction of the keys of the keyboard 5 is the left-right direction LR, and the upper side in the up-down direction UL of the keyboard instrument 10 is the up-down side Up, and the lower side is the down-down side Lo. In addition, although the keyboard instrument 10 as an electronic piano is shown in this embodiment, it may be another keyboard instrument, or may be a case of another device such as an electronic device.

[0011] As shown in Fig. 1, the case 200 has an upper case 210, a lower case 220, a left side case 230, a right side case 240, a plate-shaped front case 250, and a back panel 260 (see Fig. 3) connected to the upper case 210. The upper case 210, the lower case 220, and the front case 250 are provided long in the left-right direction LR. The front case 250 is provided between the left side case 230 and the right side case 240 on the front side F of the keyboard 5. The left side case 230 and the right side case 240 (exterior member 100 and attachment member 300 described later) are arms provided on the sides of the keyboard 5.

[0012] A plate-shaped upper panel 211 is provided on the upper surface side of the upper case 210. The left side case 230, which is long in the front-rear direction FB and has a substantially rectangular shape when viewed from above, is disposed adjacent to the left end of the upper case 210 and the left end of the front case 250. The right side case 240, which has a substantially rectangular shape similar to the left side case 230, is disposed adjacent to the right end of the upper case 210 and the right end of the front case 250. The lower case 220 is provided below the upper case 210, the left side case 230, and the right side case 240.

[0013] An operation unit 14 equipped with a pitch bender, push buttons, etc. is provided on the top surface of the left side case 230. An earphone jack 18 is provided on the front surface of the left side case 230. In addition, a rotary knob 12 for adjusting the volume is provided on the top panel 211 of the upper case 210.

[0014] Next, the side cases (left side case 230, right side case 240) will be described. Here, the left side case 230 has a substantially symmetrical shape to the right side case 240, except for the mounting structure of the operation unit 14 and the earphone jack 18, and the configuration as a case is substantially the same, so the description will focus on the right side case 240.

[0015] As shown in Figs. 2 and 3, the right side case 240 includes an exterior member 100 and a mounting member 300 to which the exterior member 100 is attached. The exterior member 100, details of which will be described later with reference to Fig. 5, is formed by adhering one first sheet 70 and multiple second sheets 80 to an exterior member main body 100a. In this embodiment, the exterior member main body 100a is made of medium density fiberboard (MDF). The first sheet 70 and the second sheet 80 are each made of a sheet material having a wood grain pattern printed on one of their outer surfaces (the surface visible to the user) and an adhesive layer provided on the other surface.

[0016] As shown in FIG. 4, the exterior member 100 (exterior member main body 100a) is substantially U-shaped in top view, and is provided so that the height in the vertical direction gradually decreases from the rear to the front. The exterior member 100 has a side surface 111, a front surface 112 connected at the front end of the side surface 111, and a rear surface 113 connected at the rear end of the side surface 111. Each connection portion between the side surface 111, the front surface 112, and the rear surface 113 is formed into a small R chamfer shape. The side surface 111, the front surface 112, and the rear surface 113 are the first exterior surface 110 (first surface), which is the outer surface that is visible when the exterior member 100 is attached to the attachment target member 300. The side surface 111, the front surface 112, and the rear surface 113 of the exterior member 100 may be integrally formed of the same material, or may be connected by joining them from a separate state.

[0017] The inner surface 130 of the exterior member main body 100a (exterior member 100) is an inner surface that faces the first exterior surface 110, and is a surface that is not visible when the exterior member 100 is attached to the attachment target member 300.

[0018] The surface connecting the first exterior surface 110 and the inner surface 130 is the second exterior surface 120 (second surface). The second exterior surface 120 is considered to be the outer surface because it may be slightly visible through a gap when the exterior member 100 is attached to the attachment target member 300. The second exterior surface 120 corresponds to the edge of a plate material. The second exterior surface 120 has a lower surface 121 shown in FIG. 6, an upper surface 122 (see FIG. 4), and a rear side surface 123 and a front side surface 124 that are provided so as to connect the lower surface 121 and the upper surface 122, respectively.

[0019] 4 and 5, the first sheet 70 is made of a single sheet provided in a shape following the faces of the exterior member main body 100a corresponding to the side face 111, the front face 112, and the rear face 113 of the exterior member 100. Here, the first exterior face 110 includes the outer surface of the first sheet 70 attached to the exterior member main body 100a.

[0020] Each of the second sheets 80 is made of a single sheet having a shape following each surface of the second exterior surface 120. Here, the second exterior surface 120 includes the outer surface of the second sheet 80 attached to the exterior member main body 100a.

[0021] A bottom sheet 81 is attached to the surface of the exterior member main body 100a corresponding to the bottom surface 121 of the exterior member 100, a top sheet 82 is attached to the surface of the exterior member main body 100a corresponding to the top surface 122 of the exterior member 100, a rear side sheet 83 is attached to the surface of the exterior member main body 100a corresponding to the rear side surface 123 of the exterior member 100, and a front side sheet 84 is attached to the surface of the exterior member main body 100a corresponding to the front side surface 124 of the exterior member 100. The rear side sheet 83 and the front side sheet 84 may be integrated with the first sheet 70 before being attached.

[0022] In this way, the exterior member 100 is formed by attaching the sheets (first sheet 70, second sheet 80) to the exterior member main body 100a. In other words, the exterior member 100 has the sheets (first sheet 70, second sheet 80) attached to the surfaces other than the inner surface 130. In other words, the first sheet 70 is a sheet that is attached to a wide surface that can be seen from the outside, and the second sheet 80 is a sheet that is attached to a small edge portion of the plate material that is difficult to see from the outside.

[0023] 6, the inner side surface 130 corresponding to the side surface 111 (see FIG. 4) of the exterior member 100 is provided with a protruding flat portion 131 as a surface that protrudes inward (toward the left side L in the right side case 240, and to the right side R in the left side case 230). Step portions 131a, 131b are provided on the edge of the upper side Up and the edge of the lower side Lo of the protruding flat portion 131, respectively. The protruding flat portion 131 is provided with six pilot holes 135 for screws and two elongated guide holes 136 that are long in the front-rear direction.

[0024] 5, a protruding flat portion 132 serving as a surface that protrudes forward is provided on an inner side surface 130 corresponding to the rear surface 113. A step portion 132a is provided on the inner edge of the protruding flat portion 132.

[0025] At the connection between the protruding flat portions 131, 132, a vertically long, substantially rectangular parallelepiped protrusion 133 is provided. As shown in Fig. 6, the inner side surface 130 corresponding to the front surface 112 is provided with a horizontally long, stepped, substantially rectangular parallelepiped protrusion 134. The base of the protrusion 134 is largely rounded toward the front side surface 124, so that the front side surface 124 has a shape in which the side surface portion of the protrusion 134 having a curved surface is connected to a rectangular portion. Therefore, the front side sheet 84 is set to the same shape as the front side surface 124.

[0026] As shown in Fig. 4 and Fig. 7, the mounting member 300 is shaped like a rectangular parallelepiped that is long in the front-rear direction, and has a top plate 310 and a main body 320. The top plate 310 is shaped like a rectangular plate that is long in the front-rear direction, and is provided at the upper end of the main body 320. An upper panel 311 is placed and attached to the upper surface of the top plate 310. The top plate 310 and the main body 320 are fixed to each other by a screw member (not shown). The screw member is provided on the upper surface of the top plate 310 that is covered by the top panel 311.

[0027] 2, a vertical plate 312 long in the front-rear direction is provided on the lower surface of the top plate 310. A plurality of wedge-shaped engaging portions 312a provided on the vertical plate 312 engage with wedge-shaped engaged portions 320a provided on the upper portion of the main body 320 long in the front-rear direction FB, reinforcing the top plate 310 so as not to separate from the main body 320. The vertical plate 312 is provided opposite the inner side surface 130 corresponding to the side surface 111 of the exterior member 100.

[0028] 4, main body 320 is a member integrally molded from a resin material. An inner side surface 321 of main body 320 is provided in a substantially flat surface shape perpendicular to the horizontal plane. In the state of right side case 240, side surface 321 abuts against protruding flat portion 131 of inner side surface 130 corresponding to side surface 111 of exterior member 100 (see cross section AA in FIG. 2 and FIG. 8).

[0029] Appropriate unevenness is provided on front part 322 (see FIG. 4) and rear part 323 (see FIG. 7) of main body part 320. Protrusion 134 of exterior member 100 is disposed to face the recess of front part 322, and protrusion 133 of exterior member 100 is disposed to face the recess of rear part 323.

[0030] 4, contact ribs 356, 357 that are long in the left-right direction are provided on the upper and lower sides, respectively, of the front part 322 of the main body 320. The upper contact rib 356 and the lower contact rib 357 contact the inner side surface 130 that corresponds to the front surface 112 of the exterior member 100, as shown in the CC and DD cross sections of FIG.

[0031] 4 and 7, a substantially U-shaped bottom plate portion 324 is provided below the front portion 322, the side surface 321, and the rear portion 323 of the main body portion 320, protruding across the front portion 322, the side surface 321, and the rear portion 323. The front portion 322, the side surface 321, and the rear portion 323 between the lower surface 313 of the top plate portion 310 of the main body portion 320 and an upper surface 328 of the bottom plate portion 324 (see the cross-sectional views in FIG. 2) are provided in a substantially concave shape, and an exterior member 100 can be placed thereon.

[0032] Six screw holes 340 are provided on the side surface 321 of the main body 320. The exterior member 100 is attached to the workpiece 300 by screwing the wood screws 15 into the pilot holes 135 of the exterior member 100 through the screw holes 340. Here, the exterior member 100 is urged backward by the urging portion 350 described later. Therefore, the exterior member 100 is screwed to the workpiece 300 in a direction perpendicular to the urging direction (rearward) of the exterior member 100. Furthermore, before the screwing process, two pins 341 provided on the side surface 321 of the main body 320 are inserted into two guide holes 136 of the exterior member 100, respectively, and the exterior member 100 is appropriately positioned in the up-down direction relative to the workpiece 300 (main body 320).

[0033] At the connection between the side surface 321 and the bottom plate 324 of the main body 320, a substantially thin-plate-like step 325 is provided across the front-rear direction of the side surface 321. Also, at the front portion 322, between the bottom plate 324 and the top plate 310, on the keyboard 5 side (inner side), a substantially plate-like boundary plate 326 is provided.

[0034] 3, the mounting member 300 is provided such that the length between the top plate portion 310 and the bottom plate portion 324 gradually decreases toward the front. Therefore, when the top plate portion 310 is disposed horizontally, the bottom plate portion 324 is disposed with an inclination that rises toward the front. The lower surface of the bottom plate portion 324 of the mounting member 300 is fixed to a connection plate 221 that is provided so as to protrude from the side portion of the lower case 220. The connection plate 221 of the lower case 220 is inclined so as to rise toward the front. Therefore, when the keyboard instrument 10 is placed, the lower surface 222 of the lower case 220 and the upper panel 311 of the top plate portion 310 are approximately parallel to each other.

[0035] 7, two biasing portions 350, one above the other, are provided integrally with the mounting member 300 at the rear portion 323 of the mounting member 300. The biasing portion 350 is provided with a leaf spring portion 351 which is a substantially plate-shaped resin spring. The leaf spring portion 351 is provided on a base portion 323a which connects with the side surface 321 at the rear portion 323, and a substantially U-shaped slit portion 352 is provided on the outer periphery of the leaf spring portion 351. An abutting protrusion 351a protruding rearward is provided at the tip of the leaf spring portion 351.

[0036] When attaching the exterior member 100 to the mounting member 300, the exterior member 100 is inserted between the top plate portion 310 and the bottom plate portion 324 of the concave mounting member 300 so that the opening side of the exterior member 100, which is approximately U-shaped, is aligned. At this time, the inner side surface 130 corresponding to the front surface 112 of the exterior member 100 abuts against the abutment ribs 356, 357 as shown in the CC and DD cross sections of FIG. 2. In addition, the protruding flat portion 131 of the inner side surface 130 corresponding to the side surface 111 abuts against the side surface 321 as shown in the AA cross section of FIG. 2 and FIG. 8, and the protruding flat portion 132 of the inner side surface 130 corresponding to the rear surface 113 abuts against the abutment protrusion 351a of the biasing portion 350 as shown in FIG. 8. Then, the biasing portion 350 generates a biasing force BF that directs the exterior member 100 backward, which is the direction of the arrow.

[0037] The exterior member 100 is positioned in the up-down direction by inserting the two pins 341 into the two guide holes 136, and is also positioned in the front-rear direction by being urged backward by the urging force BF, and is then fixed to the workpiece 300 by the wood screw 15. Since the screw hole 340 has a diameter sufficiently larger than the shaft diameter of the wood screw 15, even if the exterior member 100 is moved backward by the urging part 350, the wood screw 15 and the screw hole 340 will not interfere with each other. Furthermore, since the guide hole 136 into which the pin 341 is inserted is an elongated hole that is long in the front-rear direction, the rear movement of the exterior member 100 by the urging part 350 is not hindered.

[0038] When the exterior member 100 is attached to the attachment member 300 in this manner, the second exterior surface 120, which is the small end portion of the exterior member 100, is covered by the corresponding portion of the attachment member 300. That is, as shown in the AA cross section of Fig. 2, a protruding end 313a (in other words, a connection portion between the side surface of the top plate portion 310 and the bottom surface 313) in a cross-sectional view of the bottom surface 313 of the top plate portion 310, which is an opposing surface adjacent to the top surface 122 connected to the side surface 111 of the exterior member 100, protrudes by a protrusion amount Ta from the side surface 111 of the exterior member 100. Note that the protrusion amount in this disclosure means the shortest length protruding from the adjacent side surface of the exterior member 100 toward the outside of the exterior member 100.

[0039] Similarly, in cross section BB, a tip 328a in cross section of an upper surface 328 of the bottom plate portion 324, which is an opposing surface closely facing the lower surface 121 connected to the side surface 111 of the exterior member 100, protrudes from the side surface 111 by a protrusion amount Tb. In cross section CC, a tip 313b in cross section of a lower surface 313 of the top plate portion 310, which is an opposing surface closely facing the upper surface 122 connected to the front surface 112 of the exterior member 100, protrudes from the front surface 112 by a protrusion amount Tc. In cross section DD, a tip 328b in cross section of an upper surface 328 of the bottom plate portion 324, which is an opposing surface closely facing the lower surface 121 connected to the front surface 112 of the exterior member 100, protrudes from the front surface 112 by a protrusion amount Td.

[0040] 3, in cross section EE, tip 313c on lower surface 313 of top plate portion 310, which is an opposing surface closely facing upper surface 122 connected to rear surface 113 of exterior member 100, protrudes by a protrusion amount Te from rear surface 113. In cross section FF, tip 328c in cross section of upper surface 328 of bottom plate portion 324, which is an opposing surface closely facing lower surface 121 connected to rear surface 113 of exterior member 100, protrudes by a protrusion amount Tf from rear surface 113.

[0041] 6 (the side surface on the right side R of the rear panel 260 shown in FIG. 3), each of the protruding ends of the opposing surfaces of the top plate portion 310 and the bottom plate portion 324 protrudes from the rear surface 113. Similarly, for the right side surface of the boundary plate 326 shown in FIGS. 2 and 4, which is the opposing surface facing the front side surface 124 of the exterior member 100 shown in FIG. 6, each of the protruding ends of the opposing surfaces of the top plate portion 310 and the bottom plate portion 324 protrudes from the front surface 112.

[0042] Therefore, when the user's fingers or the like reach near the small edge (second exterior surface 120) of at least one of the side surface 111, front surface 112, and rear surface 113 of the exterior member 100, the tips (tips 313a, 313b, 328a, 328b, etc.) of the opposing surface of the second exterior surface 120 become obstacles, so that the fingers or the like almost never directly touch the small edge (lower surface 121, upper surface 122, rear side surface 123, front side surface 124) of the exterior member 100, i.e., the end of the first sheet 70 or the end of the second sheet 80, and thus the rolling up of the first sheet 70 of the first exterior surface 110 of the exterior member 100 or the second sheet 80 of the second exterior surface 120 is reduced. Therefore, the aesthetic appearance of the keyboard instrument 10 using a sheet with a wood grain pattern or the like can be maintained.

[0043] Here, the protrusion amounts Ta, Tb, Tc, and Td of the tips 313a, 313b, 328a, and 328b on the side surface 111 and the front surface 112 are set to be smaller than the protrusion amounts Te and Tf of the tips 313c and 328c on the rear surface 113. Specifically, the protrusion amounts Ta, Tb, Tc, and Td can be set to about 0.5 mm, and the protrusion amounts Te and Tf can be set to about 1.0 mm. Therefore, the protrusion amounts Ta, Tb, Tc, and Td on the front side F and right side R (left side L), which are easily noticeable to the user, can be made small and inconspicuous.

[0044] Here, by using the biasing force BF of the biasing portion 350 to bias the exterior member 100 rearward and attach it to the attachment member 300, it is possible to reliably ensure the protrusion amounts Tc, Td of the front surface 112, which are set small and inconspicuous, even if the exterior member 100 is formed from MDF, which has a relatively large dimensional error in the front-to-rear direction FB.

[0045] For example, even if the front-to-rear dimensions of the inner surface 130 corresponding to the front surface 112 and the rear surface 113 are formed larger (longer) than the dimensions in the front-to-rear direction FB of the corresponding mounting member 300, the exterior member 100 is forced rearward, so that the protrusion amounts Tc, Td can be reliably secured, and even if the exterior member 100 is positioned shifted to the rear side B, the protrusion amounts Te, Tf on the rear surface 113 side can also be reliably secured.

[0046] In addition, even if the protrusion amounts Te, Tf are set large on the rear surface 113 side, it is not easily noticeable because it is not a part that is well visible to the user. In addition, since the exterior member 100 made of MDF can be formed with good dimensional accuracy in the plate thickness direction, it is easy to ensure the protrusion amounts Ta, Tb on the side surface 111 side.

[0047] As described above, according to an embodiment of the present invention, the case 200 (right side case 240) of the keyboard instrument 10 comprises an exterior member 100 having a first exterior surface 110 including the outer surface of the first sheet 70, and a second exterior surface 120 connected to the first exterior surface 110 and including the outer surface of the second sheet 80, and an attachment member 300 to which the exterior member 100 is attached, having an opposing surface (the lower surface 313 of the top plate portion 310 and the upper surface 328 of the bottom plate portion 324) arranged opposite the second exterior surface 120, and the tips (tips 313a, 313b, 328a, 328b, etc.) of the opposing surface in a cross-sectional view protruding toward the outside of the case 200 beyond the first exterior surface 110.

[0048] As a result, the second exterior surface 120 of the exterior member 100 is covered with a member having an opposing surface facing the second exterior surface 120, and the tip of the opposing surface protrudes from the first exterior surface 110 to protect the end of the first exterior surface 110 at the boundary with the second exterior surface 120, making it difficult for the end of the first exterior surface 110 or the end of the second exterior surface 120 to come into contact with the user's fingers, etc., and therefore peeling from the end of the sheet can be reduced. Furthermore, since the sheet can be prevented from rolling up with a simple structure, the shape can be devised to make the exterior member 100 highly designed, and a case in which the sheet attached to the exterior member 100 is difficult to peel off and a keyboard instrument equipped with this case can be provided.

[0049] The mounting member 300 also includes a biasing portion 350 that biases the exterior member 100 in one direction, i.e., backward. This ensures that the protrusion amounts Tc, Td are ensured even if the exterior member 100 is made of a material with a relatively large dimensional error, such as MDF. By biasing the exterior member 100 backward, the protrusion amounts Tc, Td of the front side F can be set relatively small.

[0050] Moreover, the exterior member 100 is screwed to the mounted member 300 in a direction perpendicular to the direction in which the biasing portion 350 biases the exterior member 100. This makes it possible to reliably fix the exterior member 100 while biasing the exterior member 100.

[0051] Furthermore, the leaf spring 351 of the biasing portion 350 is a resin spring that is provided integrally with the attachment member 300. This makes it possible to easily provide the biasing portion 350 on the attachment member 300 (main body portion 320) as a resin molded member.

[0052] The first exterior surface 110 has a side surface 111, a front surface 112 and a rear surface 113 connected to the side surface 111, and in the protrusion amounts Ta, Tb, Tc, Td, Te, Tf in each cross-sectional view of the lower surface 313 of the top plate portion 310 and the tips 313a, 328a, 313b, 328b, 313c, 328c of the upper surface 328 of the bottom plate portion 324 as opposed surfaces arranged opposite to the second exterior surface 120, the protrusion amounts Ta, Tb, Tc, Td from the front surface 112 and the side surface 111 are smaller (shorter) than the protrusion amounts Te, Tf from the rear surface 113. This makes it possible to set the protrusion amounts Ta, Tb, Tc, Td of the side surface 111 in the front side F and left-right direction LR, which are easily noticeable, smaller (shorter).

[0053] The protrusion amounts Tc, Td of the front surface 112 are substantially equal to the protrusion amounts Ta, Tb of the side surface 111. This makes it possible to make the protrusions 313a, 313b, 328a, 328b from the front surface 112 to the side surface 111 uniform, resulting in a case 200 with a good appearance.

[0054] Moreover, the first sheet 70 and the second sheet 80 are wood grain sheets, thereby providing the case 200 with a high quality texture.

[0055] In the above embodiment, the right side case 240 has been described in detail, but the same can be applied to the left side case 230 as the right side case 240. In this case, the exterior member 100 and the attachment member 300 of the left side case 230 are arranged in a structure that is approximately symmetrical to the exterior member 100 and the attachment member 300 of the right side case 240. This makes it possible to provide a keyboard instrument in which the sheet attached to the exterior member 100 on the side is unlikely to peel off.

[0056] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims.

[0057] The invention described in the first claim of this application is set forth below. [1] An exterior member having a first surface including an outer surface of a first sheet and a second surface connected to the first surface; a mounting member to which the exterior member is attached, the mounting member having an opposing surface disposed opposite the second surface, and a protruding end of the opposing surface protruding beyond the first surface in a cross-sectional view; A case equipped with: [2] The case described in [1], wherein the mounting member is provided with a biasing portion that biases the exterior member in one direction. [3] The case according to [2], wherein the biasing portion biases the exterior member rearward. [4] The case described in [2], wherein the exterior member is screwed to the support member in a direction perpendicular to the direction in which the biasing portion biases the exterior member. [5] The case according to [2], wherein the biasing portion is a resin spring formed integrally with the mounting member. [6] The first surface has a side surface and a front surface and a rear surface connected to the side surface, The case described in [1], wherein the amount of protrusion of the tip protruding from the rear surface is greater than the amount of protrusion of the tip protruding from the front surface and the amount of protrusion of the tip protruding from the side surface. [7] The case according to [1] above, wherein the first sheet is a wood grain sheet. [8] Keyboard and A case according to any one of [1] to [7], which is arranged as an arm of the keyboard; A keyboard instrument comprising: [Explanation of symbols]

[0058] 3 White keys 4 Black keys 5 keys 10 keys 12 Rotary knob 14 Operation section 15 Wood screw 18 Earphone jack 70 1st sheet 80 2nd sheet 81 Lower sheet 82 Upper sheet 83 Rear side sheet 84 Front side sheet 100 Exterior member 100a Exterior member body 110 1st exterior surface 111 Side surface 112 Front 113 Rear 120 2nd exterior surface 121 Bottom surface 122 Top 123 Rear side 124 Front surface 130 Medial surface 131 Projecting flat part 131a Stepped part 131b Step part 132 Projecting flat part 132a Stepped portion 133 Projection 134 Protrusion 135 Pilot hole for screw 136 Guide hole 200 Case 210 Upper case 211 Top panel 220 Lower case 221 Connection plate 222 Bottom 230 Left side case 240 Right side case 250 Front case 260 Rear panel 300 Mounting member 310 Top plate 311 Top panel 312 Vertical plate 312a Engagement part 313 Lower surface 313a Tip 313b tip 313c tip 320 Main body part 320a Engaged part 321 Side 322 Front 323 rear 323a base 324 Bottom plate part 325 Step part 326 Boundary plate 328 Top surface 328a tip 328b tip 328c tip 340 screw hole 341 Pin 350 Actuator 351 Leaf spring portion 351a Contact protrusion portion 352 Slit section 356 Contact rib 357 Contact rib

Claims

1. an exterior member including a first surface having a front surface, a side surface, and a rear surface including an outer surface of a first sheet, and a second surface having at least one of an upper surface and a lower surface connected to the first surface; a mounting member having an opposing surface to which the exterior member is attached and which faces the second surface and is disposed in close proximity to the second surface, wherein a tip of the opposing surface in a cross-sectional view when the mounting member and the exterior member are cut in a vertical direction protrudes beyond the first surface; Equipped with the side surface is connected to the front surface and the rear surface; A case in which the amount of protrusion of the tip protruding from the rear surface is greater than the amount of protrusion of the tip protruding from the front surface and the amount of protrusion of the tip protruding from the side surface.

2. The case according to claim 1 , wherein the mounting member includes a biasing portion that biases the exterior member rearward, the biasing portion corresponding to the rear surface side.

3. The case according to claim 2 , wherein the exterior member is screwed to the mounting member in a direction perpendicular to a direction in which the biasing portion biases the exterior member.

4. The case according to claim 2 , wherein the biasing portion is a resin spring that is provided integrally with the mounting member.

5. The case according to claim 1 , wherein the first sheet is a wood grain sheet.

6. The case according to claim 1 , wherein the second surface is provided with a second sheet.

7. The keyboard and A case according to any one of claims 1 to 6, which is arranged as an arm of the keyboard; A keyboard instrument comprising:

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