Stand and keyboard instrument set

Abstract

We provide a stand that can reduce the number of parts, and a keyboard instrument set equipped with it. [Solution] The keyboard instrument 1 comprises a leg portion 7 that supports the front of the keyboard instrument 1, a pedal frame 8 positioned at the rear of the keyboard instrument 1, and a pedal device 9 fixed to the pedal frame 8, with the pedal frame 8 supporting the rear of the keyboard instrument 1. Therefore, since the pedal frame 8 is used as the rear leg portion, a separate rear leg portion can be omitted. This reduces the number of parts and eliminates the need to provide a leg mounting portion for attaching the rear leg portion to the connecting member 6, thus simplifying the structure and simplifying the assembly process, thereby improving productivity.

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 a stand for a keyboard instrument, as described in Patent Document 1, a connecting member is provided at each of both ends of a horizontal member on which the keyboard instrument is disposed, and a four-leg structure is known in which a front leg and a rear leg are provided for 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 stand having a four-leg structure, there is a problem that the number of parts such as screws increases by the number of legs, the structure becomes complicated, and the assembly work becomes troublesome.

[0005] The problem to be solved by the present invention is to provide a stand capable of reducing the number of parts and a keyboard instrument set including the same.

Means for Solving the Problems

[0006] The present invention includes a leg portion that supports the front side of a keyboard instrument, a pedal frame disposed on the rear side of the keyboard instrument, and a pedal device fixed to the pedal frame, and the pedal frame is a stand that supports the rear side of the keyboard instrument.

Effects of the Invention

[0007] According to the present invention, the number of parts can be reduced. [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. [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 8. As shown in Figures 1 to 4, this keyboard instrument set comprises a keyboard instrument 1 and a stand 2. The keyboard instrument 1 has a long instrument case 3 that is horizontally long. The instrument case 3 has a keyboard section 4 in which multiple white keys and multiple black keys are arranged along its long side.

[0010] 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.

[0011] Each of the two connecting members 6, as shown in Figures 5 to 8, includes a horizontal mounting section 10 to which the left and right ends 5a of the horizontal member 5 are attached, a leg mounting section 11 to which the upper part of the leg 7 is attached, a frame mounting section 12 to which the upper end of the pedal frame 8 is attached, and an instrument mounting section 13 to which the lower surface of the keyboard instrument 1 is positioned and placed. The horizontal mounting section 10 is attached to the top and bottom surfaces and the front and rear sides by inserting the horizontal ends 5a of the horizontal member 5 from above and fastening them with multiple screws 5b (see Figures 2 and 6).

[0012] As shown in Figures 5 to 8, 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 toward the outside in the longitudinal direction, which is the left-right direction 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-back direction, which is the short-side direction of the keyboard instrument 1.

[0013] In this case, as shown in Figure 8, a plurality of reinforcing ribs 11c are provided along the vertical direction 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. At two locations on the upper and lower parts of the first receiving surface 11a (only the lower part is shown in Figure 8), first mounting holes 11d are provided, each positioned between the multiple reinforcing ribs 11c. A second mounting hole 11e is provided approximately in the middle of the second receiving surface 11b in the vertical direction. In addition, an L-shaped reinforcing bracket 7a is attached to the upper corner of the leg portion 7 by a plurality of screws 7b, facing the mutually orthogonal first receiving surface 11a and second receiving surface 11b of the leg mounting portion 11.

[0014] As shown in Figure 8, the reinforcing bracket 7a is provided with a first mounting surface 7d facing the first receiving surface 11a of the leg mounting portion 11, and a second mounting surface 7e facing the second receiving surface 11b of the leg mounting portion 11. The first mounting surface 7d of the reinforcing bracket 7a is provided with two first screw holes 7f, one above and one below, corresponding to the two first mounting holes 11d of the first receiving surface 11a of the leg mounting portion 11. In this case, the upper end of the first mounting surface 7d of the reinforcing bracket 7a is provided with an engaging projection 7h that engages with a locking recess (not shown) provided on the first receiving surface 11a of the leg mounting portion 11. Furthermore, the second mounting surface 7e of the reinforcing bracket 7a is provided with a second screw hole 7g corresponding to the second mounting hole 11e of the second receiving surface 11b of the leg mounting portion 11.

[0015] As a result, when the upper reinforcing bracket 7a of the leg portion 7 is positioned inside the leg mounting portion 11 of the connecting member 6, as shown in Figure 8, 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. Therefore, 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. In this case, the two first screw holes 7f of the reinforcing bracket 7a correspond to the two first mounting holes 11d (one of which is not shown) 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. In addition, the engaging projection 7h of the reinforcing bracket 7a is inserted into and engages with the locking recess (not shown) of the first receiving surface 11a.

[0016] Therefore, as shown in FIGS. 7 and 8, for the leg portion 7, two one screw members (not shown) as fastening members are screwed into two first screw holes 7f of the first mounting surface 7d of the reinforcing metal 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 metal fitting 7a through the second mounting hole 11e of the second receiving surface 11b. As a result, for the leg portion 7, the one screw member (not shown) and the other screw member 15 are tightened to the reinforcing metal fitting 7a, respectively, and are attached to the leg attachment portion 11 of the connecting member 6.

[0017] That is, as shown in FIGS. 5 to 8, when the two leg portions 7 are respectively attached to the leg attachment portions 11 of the respective connecting members 6 located on both sides of the cross member 5 by the one screw member (not shown) and the other screw member 15, as shown in FIGS. 3 and 4, they extend obliquely downward toward the outside and the front in the longitudinal direction of the keyboard instrument 1 and the front in the front-rear direction which is the lateral direction of the keyboard instrument 1, respectively, and are expanded to the outside and the front of the keyboard instrument 1.

[0018] On the other hand, as shown in FIGS. 5 to 7, the frame attachment portion 12 of the connecting member 6 includes a pressing metal fitting 12a that presses the upper end portion of the pedal frame 8. This pressing metal fitting 12a is attached to the frame attachment portion 12 by a plurality of screws (not shown) in a state where the upper end portion of the pedal frame 8 is positioned and pressed against the frame attachment portion 12. In this case, as shown in FIG. 2, the pedal frame 8 is two large rod-shaped members that extend in a substantially inverted trapezoidal shape (expanding upward) from both side portions in the longitudinal direction of the pedal device 9 upward when viewed from the front of the keyboard instrument 1. These pedal frames 8 are arranged behind the leg portions 7 and are expanded to the rear side of the keyboard instrument 1 as shown in FIGS. 3 and 4.

[0019] Also, as shown in Fig. 2, these pedal frames 8 are formed to have a sufficiently long length such that the width in the longitudinal direction of the keyboard instrument 1 approaches the width of the legs 7. That is, these pedal frames 8 are formed to have a length slightly shorter than the width of the legs 7 in the longitudinal direction of the keyboard instrument 1. Further, at two locations of the pedal frames 8 located on both sides in the left-right direction which is the longitudinal direction of the pedal device 9, anti-slip members 14 which are contact members are provided respectively. These anti-slip members 14 are arranged in contact with the installation surface S on which the stand 2 is installed to prevent the stand 2 from slipping. In this case, it is not always necessary to provide the anti-slip members 14 on the pedal frames 8, and the lower part of the horizontally extending rod-shaped portion of the pedal frames 8 may be in contact with the installation surface S.

[0020] As shown in Figs. 1 to 5, the pedal device 9 includes a box-shaped device body 9a that is long in the lateral direction which is the longitudinal direction of the keyboard instrument 1, and three pedals 9b that are arranged along the lateral direction which is the longitudinal direction of the device body 9a and protrude forward of the device body 9a. Protrusion portions 9c that extend forward from the device body 9a are provided respectively below these three pedals 9b. Installation adjustment members (not shown) for adjusting the contact with the installation surface S are provided on these protrusion portions 9c.

[0021] Furthermore, as shown in Figs. 5 to 8, each instrument mounting portion 13 of the two connecting members 6 on which the keyboard instrument 1 is mounted includes a front mounting portion 13a that extends toward the front side of the keyboard instrument 1, and a side mounting portion 13b that extends in the lateral direction which is the longitudinal direction of the keyboard instrument 1. Fixing holes 13c for screwing the lower surface of the end portion in the longitudinal direction of the keyboard instrument 1 are provided respectively on each of the two front mounting portions 13a. Also, positioning pins 13d for positioning the lower surface of the keyboard instrument 1 are provided respectively on each of the two side mounting portions 13b.

[0022] Next, the case of assembling such a keyboard instrument set will be described. 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 ends 5a on both sides of the horizontal mounting parts 10 are attached to the upper and lower surfaces and the front and rear sides with multiple screws 5b. With this in place, the pedal frame 8 is attached to the frame mounting part 12 of the connecting member 6 of the horizontal member 5.

[0023] 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 of the horizontal member 5 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 members 6 and pressed down with retaining brackets 12a, and in this state, the retaining brackets 12a are attached to the frame mounting parts 12 with multiple screws (not shown).

[0024] 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.

[0025] In this state, the L-shaped reinforcing bracket 7a, which is 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, the second screw hole 7g of the reinforcing bracket 7a corresponds to the second mounting hole 11e of the second receiving surface 11b, and the engaging projection 7h of the reinforcing bracket 7a is inserted into and engages with the locking recess (not shown) of the first receiving surface 11a. 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.

[0026] 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 one screw member (not shown) and the other screw member 15 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.

[0027] 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 downwards toward the outside on both sides in the longitudinal direction of the keyboard instrument 1 and toward the front in the front-to-back direction, which is the short direction of the keyboard instrument 1, and expand outwards and toward the front of the keyboard instrument 1. As a result, the two legs 7 expand diagonally toward 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 toward the rear of the keyboard instrument 1 and support the rear of the keyboard instrument 1.

[0028] 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.

[0029] Thus, the stand 2 of this keyboard instrument set comprises legs 7 that support the front of the keyboard instrument 1, a pedal frame 8 positioned at the rear of the keyboard instrument 1, and a pedal device 9 fixed to the pedal frame 8. The pedal frame 8 supports the rear of the keyboard instrument 1, thereby reducing the number of parts.

[0030] In other words, in the stand 2 of this keyboard instrument set, the pedal frame 8 is used as the rear leg, so a separate rear leg part can be omitted, thereby reducing the number of parts. Furthermore, since there is no need to provide a leg mounting part for attaching the rear leg to the connecting member 6, the structure can be simplified. As a result, the assembly work can be simplified, and productivity can be improved.

[0031] Furthermore, in the stand 2 of this keyboard instrument set, there are two legs 7, which are arranged side by side in the left-right direction, which is the longitudinal direction of the keyboard instrument 1, on the front side of the keyboard instrument 1, and which spread outwards from the keyboard instrument 1. As a result, the front side of the keyboard instrument 1 can be reliably and well supported in a stable state by the two legs 7.

[0032] Furthermore, in the stand 2 of this keyboard instrument set, the pedal frame 8 is positioned behind the legs 7 and is positioned to spread out toward the rear of the keyboard instrument 1. This allows the pedal frame 8 to reliably and effectively support the rear of the keyboard instrument 1 in a stable state. Thus, in the stand 2 of this keyboard instrument set, the front of the keyboard instrument 1 is supported by the two legs 7 and the rear of the keyboard instrument 1 is supported by the pedal frame 8, so the keyboard instrument 1 can be reliably and effectively supported by these legs 7 and pedal frame 8 in a stable state.

[0033] In this case, the stand 2 of this keyboard instrument set consists of two rod-shaped members that extend upward in an almost inverted trapezoidal shape from both sides in the left-right direction, which is the longitudinal direction of the pedal device 9 when viewed from the front of the keyboard instrument 1. This gives a softer design impression than if the pedal frame 8 were formed in a square or rectangular shape, thereby improving the overall design.

[0034] Furthermore, the stand 2 of this keyboard instrument set is equipped with a non-slip member 14, which is a contact member that is positioned in contact with the mounting surface S of the pedal frame 8. This prevents the pedal frame 8 from sliding on the mounting surface S and also prevents the pedal frame 8 from scratching the mounting surface S.

[0035] Furthermore, in the stand 2 of this keyboard instrument set, when viewed from the front in a plan view, the width of the pedal frame 8 in the left-right direction, which is the longitudinal direction of the keyboard instrument 1, is close to the width of the legs 7 in the left-right direction, which is the longitudinal direction of the keyboard instrument 1. As a result, the width of the pedal frame 8 can be made sufficiently long, which allows the rear of the keyboard instrument 1 to be supported securely and well in a stable state by the pedal frame 8, and prevents the performer's knees from hitting the pedal frame 8 when playing.

[0036] 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.

[0037] Furthermore, this invention is not limited to the assembly method of the embodiment described above; the leg portion 7 may be assembled first, and then the pedal frame 8 may be attached. [Explanation of Symbols]

[0038] 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 rib, 11d First mounting hole, 11e Second mounting hole, 12 Frame mounting section, 12a Retaining bracket, 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. Legs that support the front of the keyboard instrument, A pedal frame positioned at the rear of the aforementioned keyboard instrument, The pedal device is fixed to the pedal frame, The pedal frame supports the rear of the keyboard instrument. stand.

2. The aforementioned legs consist of two legs, which are arranged side by side in the longitudinal direction of the keyboard instrument on the front side of the keyboard instrument and which spread outwards from the keyboard instrument. The stand according to claim 1.

3. The pedal frame is positioned behind the legs and is arranged to expand toward the rear of the keyboard instrument. The stand according to claim 1.

4. The pedal frame includes two rod-shaped members that expand upward from both sides in the longitudinal direction of the pedal device when viewed from the front of the keyboard instrument. The stand according to claim 1.

5. The pedal device is provided on a rod-shaped portion of the pedal frame that extends horizontally. The stand according to claim 1.

6. The pedal frame includes a contact member that is positioned in contact with the mounting surface. The stand according to claim 1.

7. The contact members are provided at the lower part of the horizontally extending rod-shaped portions of the pedal frame located on both sides of the pedal device. The stand according to claim 6.

8. In a plan view from the front, the width of the pedal frame in the longitudinal direction of the keyboard instrument is such that it approaches the width of the legs in the longitudinal direction of the keyboard instrument. The stand according to claim 1.

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

Images