Stand and keyboard instrument set

Abstract

We provide a stand that ensures sufficient strength while minimizing any decrease in design aesthetics, and a keyboard instrument set equipped with such a stand. [Solution] The stand comprises a horizontal member, a leg portion 7 that supports the front of the keyboard instrument, and a connecting member 6 that connects the horizontal member and the leg portion 7. The connecting member 6 has two mutually orthogonal receiving surfaces 11a and 11b, and the leg portion 7 is fixed in contact with the two receiving surfaces 11a and 11b. Therefore, since the leg portion 7 is fixed to the connecting member 6 in two mutually orthogonal directions, the leg portion 7 can be securely and firmly fixed to the connecting member 6 without using externally visible connecting fittings, thereby increasing the mounting strength of the leg portion 7 to the connecting member 6 and suppressing a decrease in design aesthetics.

Description

Technical Field

[0001] The present invention relates to a stand used for a keyboard instrument and a keyboard instrument set including the same.

Background Art

[0002] For example, in the stand of a keyboard instrument, as described in Patent Document 1, a four-leg structure is known in which connecting members are provided at both ends of a horizontal member on which the keyboard instrument is placed, and front legs and rear legs are provided on each of these connecting members.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In such a four-leg structure stand, if only the front legs and the rear legs are attached to the connecting members, sufficient strength cannot be ensured. Therefore, it is necessary to connect the front legs and the rear legs with a connecting fitting, and there is a problem that the connecting fitting is exposed and conspicuous, resulting in a decrease in design.

[0005] The problem to be solved by the present invention is to provide a stand that can ensure sufficient strength and suppress a decrease in design, and a keyboard instrument set including the same.

Means for Solving the Problems

[0006] The present invention includes a horizontal member, a leg that supports the front side of the keyboard instrument, and a connecting member that connects the horizontal member and the leg. The connecting member has two receiving surfaces that intersect each other, and the leg is fixed in a state of abutting against the two receiving surfaces. [Effects of the Invention]

[0007] This invention makes it possible to ensure sufficient strength while suppressing a decline in design aesthetics. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view showing one embodiment of the present invention applied to a keyboard instrument set. [Figure 2] Figure 1 is a front view of the keyboard instrument set shown. [Figure 3] Figure 1 is a plan view of the keyboard instrument set shown. [Figure 4] Figure 1 is a side view of the keyboard instrument set shown. [Figure 5] Figure 1 is a perspective view showing the stand for the keyboard instrument set. [Figure 6] Figure 5 is a perspective view of the stand shown, taken from the right rear. [Figure 7] This is an enlarged view showing the main part of the front side of the stand shown in Figure 6. [Figure 8] Figure 7 is an exploded perspective view showing an enlarged view of the main parts of the leg attachment portion and the leg portion of the stand's connecting member. [Figure 9] Figure 7 is a perspective view of the main part of the leg attachment section of the stand's connecting member, as seen from the front right. [Modes for carrying out the invention]

[0009] Hereinafter, an embodiment of this invention applied to a keyboard instrument set will be described with reference to Figures 1 to 9. As shown in Figures 1 to 4, this keyboard instrument set 100 comprises a keyboard instrument 1 and a stand 2. The keyboard instrument 1 is fitted with a horizontally long instrument case 3. This instrument case 3 is provided with a keyboard section 4 in which multiple white keys and multiple black keys are arranged along the longitudinal direction (left to right).

[0010] In this invention, the left-right direction refers to the direction to the left and right as viewed from the position where the player of the keyboard instrument 1 stands while playing. The up-down direction is defined as the top surface of the keyboard instrument 1 on which the keyboard section 4 is provided, and the opposite surface being the bottom surface. Furthermore, the front-back direction means the direction with the player's side forward and the opposite side backward.

[0011] As shown in Figures 1 to 5, the stand 2 comprises a rectangular cylindrical horizontal member 5 that is long in the left-right direction on which the keyboard instrument 1 is placed, two connecting members 6 provided at both ends of the horizontal member 5 in the left-right direction, two legs 7 attached to each of these connecting members 6 to support the front of the keyboard instrument 1, a pedal frame 8 attached to the connecting members 6 on both sides to support the rear of the keyboard instrument 1, and a pedal device 9 fixed to the pedal frame 8.

[0012] Each of the two connecting members 6, as shown in Figures 5 to 9, includes a horizontal mounting portion 10 to which the left-right ends 5a of the horizontal member 5 are attached, a leg mounting portion 11 which is an engaging portion to which the upper part of the leg portion 7 is attached, a frame mounting portion 12 which is a frame fixing portion to which the upper end of the pedal frame 8 is attached, and an instrument mounting portion 13 to which the lower surface of the keyboard instrument 1 is positioned and placed. The horizontal mounting portion 10 is attached to the upper and lower surfaces and the front and rear sides by inserting the horizontal ends 5a of the horizontal member 5 from above and fastening them with a plurality of screws 5b (see Figures 2 and 6).

[0013] As shown in Figures 5 to 9, the leg mounting portion 11 is formed in an L-shape. This leg mounting portion 11 has a first receiving surface 11a and a second receiving surface 11b that are perpendicular to each other and to which the leg portion 7 is attached. The first receiving surface 11a of the leg mounting portion 11 extends diagonally downward from the inside to the outside of the keyboard instrument 1. The second receiving surface 11b of the leg mounting portion 11 extends diagonally downward toward the front in the front-to-back direction, which is the shorter side direction of the keyboard instrument 1. Note that the first receiving surface 11a and the second receiving surface 11b are not necessarily perpendicular to each other, and a configuration in which they simply intersect each other is also included.

[0014] In this case, on the outer surface, which is the surface opposite to the first receiving surface 11a in the leg attachment portion 11, as shown in FIG. 8, a plurality of reinforcing members, ribs 11c, are provided along the vertical direction. At two locations, above and below, of this first receiving surface 11a (only the lower location is shown in FIG. 8), a plurality of first mounting holes 11d are respectively provided between the ribs 11c, which are the plurality of reinforcing members. At approximately the middle portion in the vertical direction of the second receiving surface 11b, a second mounting hole 11e is provided. Also, at the upper corner portion of the leg portion 7, a reinforcing metal fitting 7a, which is an L-shaped engaged portion facing the first receiving surface 11a and the second receiving surface 11b that are orthogonal to each other in the leg attachment portion 11, is attached by a plurality of screws 7b. Note that the reinforcing member is not limited to a rib, and it may be a stay, a bracket, a stiffener, etc. as long as it has a reinforcing effect.

[0015] As shown in FIG. 8, this reinforcing metal fitting 7a is provided with a first mounting surface 7d facing the first receiving surface 11a of the leg attachment portion 11 and a second mounting surface 7e facing the second receiving surface 11b of the leg attachment portion 11. On the first mounting surface 7d of this reinforcing metal fitting 7a, two upper and lower first screw holes 7f corresponding to the two first mounting holes 11d on the first receiving surface 11a of the leg attachment portion 11 are provided. In this case, at the upper end portion of the first mounting surface 7d of the reinforcing metal fitting 7a, an engaging protrusion 7h that engages with an engaging concave portion 11f (see FIG. 9) provided on the first receiving surface 11a of the leg attachment portion 11 is provided. Also, on the second mounting surface 7e of the reinforcing metal fitting 7a, a second screw hole 7g corresponding to the second mounting hole 11e on the second receiving surface 11b of the leg attachment portion 11 is provided.

[0016] As a result, as shown in FIG. 8, when the upper reinforcing metal fitting 7a is arranged inside the leg attachment portion 11 of the connecting member 6, the two surfaces of the first mounting surface 7d and the second mounting surface 7e that are orthogonal to each other of the reinforcing metal fitting 7a face the two surfaces of the first receiving surface 11a and the second receiving surface 11b that are orthogonal to each other of the leg attachment portion 11. For this reason, the reinforcing metal fitting 7a is covered by the first receiving surface 11a and the second receiving surface 11b that are orthogonal to each other of the leg attachment portion 11 of the connecting member 6 and is hidden so as not to be visible from the outside. By covering the screws 7b in this way, a decrease in design quality can be suppressed.

[0017] In this case, the two first screw holes 7f of the reinforcing fitting 7a correspond to the two first mounting holes 11d (see FIG. 9) of the first receiving surface 11a, and the second screw hole 7g of the reinforcing fitting 7a corresponds to the second mounting hole 11e of the second receiving surface 11b. Further, the engaging projection 7h of the reinforcing fitting 7a is placed on and engaged with the engaging recess 11f of the first receiving surface 11a. Note that the first receiving surface 11a and the second receiving surface 11b are arranged on the side and rear of the leg portion 7 so as not to be visible from the front.

[0018] Therefore, as shown in FIGS. 7 and 8, for the leg portion 7, two one screw members (not shown), which are fastening members, are screwed into the two first screw holes 7f of the first mounting surface 7d of the reinforcing fitting 7a through the respective first mounting holes 11d of the first receiving surface 11a, and the other screw member 15 (see FIG. 7) is screwed into the second screw hole 7g of the second mounting surface 7e of the reinforcing fitting 7a through the second mounting hole 11e of the second receiving surface 11b. Thereby, the leg portion 7 is attached to the leg mounting portion 11 of the connecting member 6 with the two one screw members (not shown) and the other screw member 15 being tightened to the reinforcing fitting 7a respectively.

[0019] That is, as shown in FIGS. 5 to 8, when the two leg portions 7 are respectively attached to the leg mounting portions 11 of the respective connecting members 6 located on both sides of the cross member 5 by the two one screw members (not shown) and the other screw member 15, as shown in FIGS. 3 and 4, they extend obliquely downward respectively toward the outside and the front in the longitudinal direction of the keyboard instrument 1, which is the front-rear direction, and are expanded toward the outside and the front of the keyboard instrument 1.

[0020] On the other hand, the frame mounting portion 12 of the connecting member 6 is equipped with a retaining bracket 12a that presses down on the upper end of the pedal frame 8, as shown in Figures 5 to 7 and 9. This retaining bracket 12a is attached to the frame mounting portion 12 by a plurality of screws 12b while the upper end of the pedal frame 8 is positioned and pressed against the frame mounting portion 12. In this case, as shown in Figure 2, the pedal frame 8 consists of two rod-shaped members that extend upward in an almost inverted trapezoidal shape from both sides in the longitudinal direction of the pedal device 9 when viewed from the front of the keyboard instrument 1. As shown in Figures 3 and 4, these pedal frames 8 are positioned behind the leg portion 7 and expand diagonally downward towards the rear in the front-to-back direction, which is the short direction of the keyboard instrument 1.

[0021] Furthermore, as shown in Figure 2, these pedal frames 8 are formed with a length such that the width in the longitudinal direction of the keyboard instrument 1 is slightly shorter than the width of the legs 7. In addition, anti-slip members 14 are provided at two locations on the pedal frames 8 located on both sides in the left-right direction, which is the longitudinal direction of the pedal device 9. These anti-slip members 14 are positioned in contact with the mounting surface S on which the stand 2 is installed, and prevent the stand 2 from slipping.

[0022] As shown in Figures 1 to 5, the pedal device 9 comprises a box-shaped device body 9a that is elongated in the longitudinal direction of the keyboard instrument 1, and three pedals 9b that are arranged along the longitudinal direction of the device body 9a and protrude from the front of the device body 9a. On the underside of each of these three pedals 9b, there is a projection 9c that extends forward from the device body 9a. These projections 9c are provided with an installation adjustment member (not shown) for adjusting contact with the installation surface S.

[0023] Furthermore, as shown in Figures 5 to 9, each instrument mounting section 13 of the two connecting members 6 that support the keyboard instrument 1 includes a front mounting section 13a extending toward the front of the keyboard instrument 1 and a lateral mounting section 13b extending in the lateral direction, which is the longitudinal direction of the keyboard instrument 1. Each of the two front mounting sections 13a is provided with a fixing hole 13c for screwing the lower surface of the end of the keyboard instrument 1 in the longitudinal direction. Each of the two lateral mounting sections 13b is provided with a positioning pin 13d for positioning the lower surface of the keyboard instrument 1. When viewed from above, the edge of the front mounting section 13a is positioned slightly inward from the upper end of the leg section 7 relative to the keyboard instrument 1. This allows the keyboard instrument 1 to be placed on the stand 2 more stably.

[0024] Next, we will describe how to assemble such a keyboard instrument set 100. In this case, first, the stand 2 is assembled. At this time, the connecting members 6 are attached to both ends of the horizontal member 5, which is in the left-right direction. That is, each end 5a on both sides of the horizontal member 5 is fitted from above into the horizontal mounting parts 10 of the two connecting members 6, and the upper and lower surfaces and the front and rear sides of each end 5a on both sides of the horizontal mounting parts 10 are attached with multiple screws 5b. In this state, the pedal frame 8 is attached to the frame mounting part 12 of the connecting member 6 that is attached to the horizontal member 5.

[0025] At this time, the pedal device 9 is attached to the pedal frame 8 in advance, and anti-slip members 14 are attached to both sides of the pedal frame 8 located on both sides of the pedal device 9. Then, with the upper ends 8a on both sides of the pedal frame 8 facing upward, the pedal frame 8 is laid on a mounting surface S such as the floor. In this state, the frame mounting parts 12 of the two connecting members 6 are attached to the upper ends 8a of the pedal frame 8 on both sides. In this case, the upper ends 8a of the pedal frame 8 are positioned on the frame mounting parts 12 of the connecting member 6 and pressed down with the retaining brackets 12a, and in this state, the retaining brackets 12a are attached to the frame mounting parts 12 with multiple screws 12b.

[0026] With the pedal frame 8 lying flat on a mounting surface S such as the floor, the horizontal member 5 is attached to the pedal frame 8 via two connecting members 6, and the leg attachment parts 11 of the two connecting members 6 are positioned at an angle upwards. In this state, the legs 7 are attached to the leg attachment parts 11 of the two connecting members 6 attached to both ends of the horizontal member 5. At this time, L-shaped reinforcing brackets 7a are attached to the corners of the upper part of the legs 7 with multiple screws 7b beforehand.

[0027] In this state, the engaging projection 7h of the reinforcing bracket 7a is placed on and engaged with the engaging recess 11f of the first receiving surface 11a, and with the installation position almost determined, the L-shaped reinforcing bracket 7a, which has been pre-attached to the upper part of the leg portion 7, is positioned inside the L-shaped leg mounting portion 11 of the connecting member 6, so that the two mutually orthogonal surfaces of the reinforcing bracket 7a, the first mounting surface 7d and the second mounting surface 7e, face the two mutually orthogonal surfaces of the leg mounting portion 11, the first receiving surface 11a and the second receiving surface 11b. In this state, the two first screw holes 7f of the reinforcing bracket 7a correspond to the two first mounting holes 11d of the first receiving surface 11a, and the second screw hole 7g of the reinforcing bracket 7a corresponds to the second mounting hole 11e of the second receiving surface 11b. As a result, the reinforcing bracket 7a is covered by the mutually orthogonal first receiving surface 11a and the second receiving surface 11b of the leg mounting portion 11 of the connecting member 6, and is hidden from view from the outside.

[0028] Then, two screw members (not shown), which are fastening members, are screwed into two first screw holes 7f provided in the first mounting surface 7d of the reinforcing bracket 7a through the first mounting holes 11d of the first receiving surface 11a, and the other screw member 15 is screwed into the second screw hole 7g through the second mounting hole 11e of the second receiving surface 11b. In this state, when the two screw members (not shown) on one side and the other screw member 15 on the other side are tightened, the leg portion 7 is attached to the leg mounting portion 11 of the connecting member 6. In this way, the stand 2 that supports the front and rear of the keyboard instrument 1 is assembled by these two leg portions 7 and the pedal frame 8.

[0029] In this state, when the stand 2 is erected on a surface S such as the floor using the two legs 7 and the pedal frame 8, as shown in Figures 3 and 4, the two legs 7 extend diagonally downward towards the outside of the keyboard instrument 1 and towards the front in the front-to-back direction, which is the shorter side of the keyboard instrument 1, and expand outwards and forwards of the keyboard instrument 1. As a result, the two legs 7 expand diagonally towards the front of the keyboard instrument 1 and support the front of the keyboard instrument 1. At this time, the two pedal frames 8, positioned behind each leg 7, expand towards the rear of the keyboard instrument 1 and support the rear of the keyboard instrument 1.

[0030] Next, the lower surfaces of the keyboard instrument 1 in the left-right direction, which is the longitudinal direction, are positioned on the instrument mounting sections 13 provided on the two connecting members 6 of the stand 2. At this time, the lower surfaces of both sides of the keyboard instrument 1 in the left-right direction are positioned by positioning pins 13d provided on the lateral mounting sections 13b of the two instrument mounting sections 13. In this state, screw members (not shown) are screwed into the lower surface of the keyboard instrument 1 from below through the fixing holes 13c of the two front mounting sections 13a, thereby attaching the keyboard instrument 1 to the stand 2. In this state, the contact state of the pedal device 9 with the mounting surface S is adjusted by the installation adjustment member (not shown) of the pedal device 9. This completes the assembly of the keyboard instrument set 100.

[0031] Thus, the stand 2 of this keyboard instrument set 100 comprises a horizontal member 5, a leg 7 that supports the front of the keyboard instrument 1, and a connecting member 6 that connects the horizontal member 5 and the leg 7. The connecting member 6 has two mutually orthogonal receiving surfaces, a first receiving surface 11a and a second receiving surface 11b, and the leg 7 is fixed in contact with the first receiving surface 11a and the second receiving surface 11b, thereby ensuring sufficient strength and suppressing a decrease in design aesthetics.

[0032] In other words, in the stand 2 of this keyboard instrument set 100, the legs 7 are fixed in contact with the first receiving surface 11a and the second receiving surface 11b, so that the legs 7 can be fixed to the connecting member 6 in two directions perpendicular to each other. This allows the legs 7 to be securely and firmly fixed to the connecting member 6 without using connecting fittings that are visible from the outside, thereby increasing the mounting strength of the legs 7 to the connecting member 6 and suppressing a decrease in design aesthetics.

[0033] In this case, the stand 2 of the keyboard instrument set 100 comprises a pedal frame 8, a pedal device 9 fixed to the pedal frame 8, and a frame mounting part 12 which is a frame fixing part that secures the pedal frame 8. Since the frame mounting part 12 is provided on the connecting member 6, the pedal frame 8 can be used as a rear leg, thereby eliminating the need for a separate rear leg part. This reduces the number of parts and simplifies the structure, which in turn simplifies the assembly process and improves productivity.

[0034] Furthermore, in the stand 2 of this keyboard instrument set 100, the connecting member 6 has a leg mounting portion 11 which is an engaging portion, and a reinforcing bracket 7a which is an engaged portion is attached to the leg portion 7, and the reinforcing bracket 7a is covered and fixed by the leg mounting portion 11. This ensures that the leg portion 7 is securely and firmly attached to the leg mounting portion 11 by the reinforcing bracket 7a, and even though the reinforcing bracket 7a is provided on the leg portion 7, it can be covered and hidden by the leg mounting portion 11 of the connecting member 6 so that it is not visible from the outside, thereby preventing a decrease in design quality.

[0035] Furthermore, the reinforcing fitting 7a, which is the engaged part, has an engaging projection 7h, and the leg mounting part 11, which is the engaged part, has an engaging recess 11f. The engaging projection 7h engages with the engaging recess 11f, and from the state before the reinforcing fitting 7a is attached to the leg mounting part 11, the multiple first mounting holes 11d corresponding to the multiple first screw holes 7f and the second mounting holes 11e corresponding to the second screw holes are determined in their respective positions, making the installation work easier.

[0036] Furthermore, since the reinforcing bracket 7a, which is the engaged part, is attached to the leg 7 by multiple screws 7b, and the reinforcing bracket 7a is covered and fixed by the leg mounting part 11, the multiple screws 7b can be concealed by the leg mounting part 11 of the connecting member 6 so that they are not visible from the outside, thereby also suppressing a decrease in design quality.

[0037] Furthermore, on the outer surface of the first receiving surface 11a, that is, the outer surface opposite to the first receiving surface 11a to which the leg portion 7 is attached, multiple reinforcing members, or ribs 11c, are provided along the vertical direction, and two reinforcing members, or ribs 11c, are provided on both sides of the first mounting hole 11d of the first receiving surface 11a. This reinforces the strength that has been reduced by the provision of the hole, and having two of them provides a more reliable reinforcement effect.

[0038] Furthermore, in the stand 2 of this keyboard instrument set 100, the reinforcing fitting 7a, which is the engaged part, has two intersecting surfaces, allowing the leg portion 7 to be fixed to the connecting member 6 from two mutually perpendicular directions. This ensures that the leg portion 7 is securely and firmly fixed to the connecting member 6, thereby increasing the mounting strength of the leg portion 7 to the connecting member 6.

[0039] Furthermore, the two connecting members 6 that support the keyboard instrument 1 are located above the intersecting first receiving surface 11a and second receiving surface 11b. Each instrument mounting section 13 has a front mounting section 13a that extends in the short direction of the keyboard instrument 1, and the edge of the front mounting section 13a is positioned slightly inward in the longitudinal direction of the keyboard instrument 1 compared to the upper end of the leg section 7 when viewed from above. As a result, the weight of the keyboard instrument 1 is distributed across the front mounting section 13a, allowing it to be placed on the stand 2 more stably.

[0040] In the embodiments described above, the pedal frame 8 is formed in a substantially inverted trapezoidal shape. However, this invention is not limited to this, and it may be formed in other shapes such as a square or rectangular shape.

[0041] In the above embodiment, the case in which the stand 2 is applied to the keyboard instrument 1 was described, but the present invention is not limited to keyboard instruments and can also be applied to koto, zither, yanqing, DJ controllers, and MIDI controllers. [Explanation of Symbols]

[0042] 100 Keyboard instrument set, 1 Keyboard instrument, 2 Stand, 3 Instrument case, 4 Keyboard section, 5 Horizontal frame member, 5a End section, 5b Screw, 6 Connecting member, 7 Leg section, 7a Reinforcement bracket, 7b Screw, 7d First mounting surface, 7e Second mounting surface, 7f First screw hole, 7g Second screw hole, 7h Engaging projection, 8 Pedal frame, 9 Pedal device, 9a Device body, 9b Pedal, 9c Projection, 10 Horizontal frame mounting section, 11 Leg mounting section, 11a First receiving surface, 11b Second receiving surface, 11c Reinforcement member (rib), 11d First mounting hole, 11e Second mounting hole, 11f Engaging recess, 12 Frame mounting section, 12a Retaining bracket, 12b Screw, 13 Instrument mounting section, 13a Front mounting section, 13b Side mounting section, 13c Fixing hole, 13d Positioning pin, 14 Anti-slip member, 15 Screw member

Claims

1. Horizontal members and Legs that support the front of the instrument, It comprises a connecting member that connects the horizontal member and the leg portion, The connecting member has two receiving surfaces that intersect each other, The leg portion is fixed in contact with the two receiving surfaces. stand.

2. A reinforcing member is provided at the location of the connecting member corresponding to the leg portion. The stand according to claim 1.

3. The reinforcing member has at least one rib, The outer surface opposite to the receiving surface is provided along the vertical direction, The stand according to claim 2.

4. The aforementioned connecting member has a mounting hole, The reinforcing members are provided in pairs on both sides of the mounting holes. The stand according to claim 2.

5. The connecting member has an engaging portion, and the leg portion has an engaged portion attached to it. The engaged portion is covered and fixed by the engaging portion. The stand according to claim 1.

6. The engagement portion has an engagement recess, The engaged portion has an engaging projection, The aforementioned engaging projection is locked by the engaging recess. The stand according to claim 5.

7. The engaged portion has at least one screw, The engaging portion covers the engaged portion and the at least one screw. The stand according to claim 5.

8. The engaged portion has two surfaces that intersect each other. The stand according to claim 5.

9. The connecting member has a front mounting portion located above the two intersecting receiving surfaces on which the instrument is placed. The stand according to claim 1.

10. The edge of the front mounting portion is positioned inward from the upper end of the leg portion when viewed from above in the vertical direction of the instrument. The stand according to claim 9.

11. The aforementioned instrument is a keyboard instrument. The stand according to claim 1.

12. Pedal frame and The pedal device is fixed to the pedal frame, The connecting member includes a frame fixing portion for fixing the pedal frame, The stand according to claim 11.

13. A keyboard instrument set comprising the stand described in claim 1.

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