Stand and keyboard instrument set

Abstract

To provide improved stands and keyboard instrument sets.SOLUTION: A stand 100 includes a horizontal member 150, a connecting member 160 that includes a polygon shaped part 161 and is provided at the horizontal member 150, and a first leg member that is secured to a first face 161a of the polygon shaped part 161 and that includes a first leg body 111 whose horizontal cross section Sa is rectangular.SELECTED DRAWING: Figure 4

Description

[Technical Field]

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

[0002] Conventionally, stands as legs attached to various devices have been disclosed. For example, Patent Document 1 discloses a stand with four legs that are attached by screwing into female threads provided on the underside of an electronic keyboard instrument. The legs of this stand are arranged to spread apart from each other. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3182648 Summary of the Invention [Problem to be solved by the invention]

[0004] Such stands may be installed by, for example, pressing the lower ends of the legs against a wall or the like. In this case, they may be pressed too hard against the wall or the like, which may require a certain level of rigidity. When rod-shaped legs are attached to the housing by screw connections, as in the above-mentioned conventional stands, it is possible to increase the diameter of the male threads or the connection surface between the housing and the legs, but this would result in an increase in the size of the stand itself and may reduce its design appeal.

[0005] An object of the present invention is to provide a good stand and keyboard instrument set. [Means for solving the problem]

[0006] The stand of the present invention includes a horizontal member that is long in the left-right direction, a connecting member that is provided at the end of the horizontal member and to which the horizontal member is fixed, and leg members that include a first leg member and a second leg member that are each fixed to the connecting member, and the angle between the first leg member and the second leg member is approximately a right angle.

[0007] A keyboard instrument set according to the present invention comprises the above-described stand and a keyboard instrument placed above the stand. [Effects of the Invention]

[0008] According to the present invention, a good stand and keyboard instrument set can be provided. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view showing a stand according to an embodiment of the present invention. [Figure 2] FIG. 1 is a plan view of a stand according to an embodiment of the present invention. [Figure 3] 1 is a front view showing a first leg member of a stand according to an embodiment of the present invention. [Figure 4] 1 is a perspective view of the left connecting member and its surroundings of the stand according to the embodiment of the present invention, viewed from the upper front side. FIG. [Figure 5] 1 is a perspective view of the left connecting member and its surroundings of the stand according to the embodiment of the present invention, viewed from above and rearward. FIG. [Figure 6] 1 is a perspective view of the left connecting member and its surroundings of the stand according to the embodiment of the present invention, viewed from below and from the right side. FIG. [Figure 7] 1 is a perspective view of the left connecting member and its surroundings of the stand according to the embodiment of the present invention, viewed from above and from the left side. FIG. [Figure 8] FIG. 10 is a left side view showing the left connecting member of the stand according to the embodiment of the present invention. [Figure 9] 1 is a plan view showing the vicinity of the connection portion between the left connecting member and the first and second leg members of the stand according to the embodiment of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0010] An embodiment of the present invention will now be described with reference to the drawings. FIG. 1 shows a stand 100 supporting a keyboard instrument 10 having a generally rectangular parallelepiped shape indicated by a two-dot chain line. A keyboard instrument set 1 includes the stand 100 and the keyboard instrument 10 disposed above the stand 100. The stand 100 is provided with a pedal device 200 having three pedals 210. In the following description, the front-to-back direction of the pedal 210 (the front-to-back direction of the keys (not shown) of the keyboard instrument 10) is referred to as the front-to-back direction FB, the front is referred to as the front side F (the performer's side), the rear is referred to as the rear side B, and the direction in which the pedals 210 are arranged (the direction in which the keys (not shown) of the keyboard instrument 10 are arranged) is referred to as the left-to-right direction LR, with the left as viewed from the front of the pedal device 200 being the left side L and the right as viewed from the right side R. In addition, in the up-down direction UL of the pedal device 200, the top is referred to as the upper side Up and the bottom is referred to as the lower side Lo. In this embodiment, the object supported by the stand 100 is the keyboard instrument 10, but it may also be another instrument or various other devices.

[0011] 1 and 2, the stand 100 includes a cross member 150 provided in the shape of a rectangular tube that is long in the left-right direction LR, two connecting members 160 provided at both ends of the cross member 150, and a first leg member 110 and a second leg member 120 provided on each connecting member 160. A pedal device 200 is attached to the connecting member 160 via a round-bar-shaped pedal frame 250.

[0012] The connecting member 160 on the right side R is provided substantially symmetrically to the connecting member 160 on the left side L. Furthermore, the first leg member 110 and the second leg member 120 provided on the connecting member 160 on the right side R have substantially the same shapes in essential parts as the first leg member 110 and the second leg member 120 provided on the connecting member 160 on the left side L. Therefore, in the following explanation, attention will be focused on the connecting member 160 on the left side L and the first leg member 110 and the second leg member 120 provided on the connecting member 160.

[0013] As shown in Figure 3, the first leg member 110 includes a first leg main body 111. In this embodiment, the first leg main body 111 is made of a wooden member. The first leg main body 111 has a flat installation member 112 at its lower end that abuts against the installation surface FL. The first leg main body 111 is shaped like a roughly rectangular rod.

[0014] The first leg body 111 includes a leg top surface 111a on the upper side Up, a leg outer side surface 111b on the outer side (opposite the connecting member 160) that forms an obtuse angle with the leg top surface 111a, and a fixed surface 111c on the inner side (towards the connecting member 160) that forms a right angle with the leg top surface 111a. The first leg body 111 also includes a leg inner side surface 111d that forms an obtuse angle with the fixed surface 111c on the lower side Lo. The first leg body 111 also includes a first leg side surface 111e and a second leg side surface 111f that form two side surfaces that form a substantially right angle with the leg top surface 111a, the leg outer side surface 111b, the fixed surface 111c, and the leg inner side surface 111d. The leg bottom surface 111g is connected to the leg outer surface 111b, the leg inner surface 111d, the first leg side surface 111e, and the second leg side surface 111f, and is parallel to the installation surface FL and the leg upper surface 111a, and an installation member 112 is provided.

[0015] In the portion Lo below the connecting member 160, the angle θ1 formed by the outer leg surface 111b and the horizontal installation surface FL is larger than the angle θ2 formed by the inner leg surface 111d and the horizontal installation surface FL (θ1 > θ2). Furthermore, both angles θ1 and θ2 are set to 90 degrees or less. In this embodiment, θ1 is approximately 73 degrees, and θ2 is approximately 69 degrees. Therefore, when viewed from the first leg side surface 111e and the second leg side surface 111f, the first leg main body 111 has a thick upper side (Up) and a thin lower side (Lo). Furthermore, the first leg main body 111 is disposed at an angle with respect to the installation surface FL, and the first leg member 110 and the second leg member 120 are disposed so as to be spread apart when viewed from the front-to-rear direction FB or the left-to-right direction LR.

[0016] As shown in the enclosed diagram of the AA cross section in FIG. 3, the first leg main body 111 has a rectangular AA cross section (i.e., a horizontal cross section Sa parallel to the installation surface FL) in the portion Lo below the connecting member 160. Here, the leg outer side surface 111b of the first leg main body 111 corresponds to one of the two short sides SL1, SL2 of the rectangular shape (cross section Sa), namely, the short side SL1, which is located on the side opposite the fixed surface 111c (i.e., the first surface 161a). The leg inner side surface 111d of the first leg main body 111 corresponds to the other of the two short sides SL1, SL2 of the rectangular shape (cross section Sa), namely, the short side SL2, which is located on the side of the fixed surface 111c (first surface 161a). The leg outer side surface 111b is located on the opposite side of the leg inner side surface 111d.

[0017] The cross-sectional area of ​​the rectangular cross-section Sa gradually decreases toward the lower side Lo in a portion Lo below the connecting member 160. In the cross-section Sa, two short sides SL1, SL2 have constant lengths toward the lower side Lo. Meanwhile, two long sides LL1, LL2 of the cross-section Sa gradually decrease toward the lower side Lo in a portion Lo below the connecting member 160. Note that in the cross-section Sa corresponding to the fixing surface 111c (connecting member 160), the long sides LL1, LL2 gradually increase toward the lower side Lo, and the short sides SL1, SL2 are constant in the up-down direction UL, so the cross-sectional area of ​​the cross-section Sa gradually increases.

[0018] A metal plate 111c1 and a male screw portion 111c2 protruding through the metal plate 111c1 are provided on the fixing surface 111c of the first leg main body 111. The metal plate 111c1 of the fixing surface 111c is fixed by being in face-to-face contact with a first surface 161a of a connecting member 160 (described below).

[0019] 1 and 2, the second leg member 120 includes a second leg body 121 having the same shape and configuration as the first leg body 111 of the first leg member 110. That is, as shown in FIGS. 3 to 7, the second leg body 121 includes a leg top surface 121a, a leg outer side surface 121b, a leg inner side surface 121d, a fixing surface 121c, a first leg side surface 121e, and a second leg side surface 121f, and as shown in FIG. 1, a leg bottom surface 121g. Similarly to the first leg member 110, the second leg member 120 also includes an installation member 122 provided on the second leg body 121. Furthermore, a metal plate 121c1 and a male thread portion 121c2 are provided on the fixing surface 121c.

[0020] As shown in FIGS. 4, 5, and 7, the connecting member 160 includes a polygonal portion 161. The connecting member 160 is formed by die-casting a metal material such as an aluminum alloy. The polygonal portion 161 is a generally hexagonal cylinder with a bottom plate 161d, and includes a first surface 161a, a second surface 161b, and a third surface 161c on the outside. A fixing surface 111c (metal plate 111c1) of the first leg main body 111 of the first leg member 110 is fixed to the first surface 161a by face-to-face contact. Similarly, a fixing surface 121c (metal plate 121c1) of the second leg main body 121 of the second leg member 120 is fixed to the second surface 161b by face-to-face contact.

[0021] The first surface 161a to the third surface 161c are surfaces that are approximately parallel to the up-down direction UL (vertical direction). As shown in the enclosed diagram of part Q1 in FIG. 2, the third surface 161c is a surface that is parallel to the front-to-back direction FB. The first surface 161a and the second surface 161b form angles θ3 and θ4 of approximately 44 degrees with respect to the third surface 161c (i.e., the front-to-back direction FB). Therefore, the angle θ5 at which the first surface 161a and the second surface 161b intersect is approximately a right angle. It is preferable that the formed angles θ3 and θ4 be set to 40 degrees to 45 degrees.

[0022] The connecting member 160 is provided with a bridging member fixing portion 166, to which the bridging member 150 is connected and fixed via a recess 160a for removing material, on the inside of the polygonal portion 161 (the opposite side to the first leg member 110 and the second leg member 120). The bridging member fixing portion 166 is formed in a groove shape, and the bridging member 150 is fixed to the connecting member 160 from the upper side Up by two screw members 33. In addition, screw members (not shown) are inserted from two points on the front side F of the bridging member fixing portion 166 via cylindrical resin spacers 151, and the bridging member 150 is fixed to the bridging member fixing portion 166 of the connecting member 160.

[0023] A pedal frame fixing portion 167 to which the upper end portion of the pedal frame 250 is fixed is provided on the rear side B of the cross member fixing portion 166. The pedal frame 250 is fixed to the connecting member 160 by tightening four screws 34 so that the upper end portion is pressed against the pedal frame fixing portion 167 by a plate 167a.

[0024] Furthermore, a rear keyboard instrument fixing portion 168 that protrudes toward the rear side B is provided on the outer side of the pedal frame fixing portion 167 (the side on which the first leg member 110 and the second leg member 120 are arranged). Furthermore, the connecting member 160 is provided with a front keyboard instrument fixing portion 169 that protrudes toward the front side F at a position facing the rear keyboard instrument fixing portion 168 with the cross member 150 (cross member fixing portion 166) in between. The rear keyboard instrument fixing portion 168 and the front keyboard instrument fixing portion 169 include contact surfaces 168a, 169a that are provided with predetermined regions that protrude toward the upper side Up. The contact surfaces 168a, 169a are surfaces that abut against the underside of the keyboard instrument 10. Furthermore, a positioning pin 169b that is arranged on the outer side of the contact surface 169a of the front keyboard instrument fixing portion 169 engages with a recess (not shown) provided on the underside of the keyboard instrument 10, thereby positioning the keyboard instrument 10. The rear keyboard instrument fixing portion 168 is provided with a hole 168b having a roughly rectangular or triangular shape as appropriate.

[0025] 6, the connecting member 160 is provided with extending portions 162 and 163 that extend in a bifurcated shape on a lower side Lo of the polygonal portion 161. The extending portion 162 is provided on the front side F, and the extending portion 163 is provided on the rear side B. Reinforcing ribs 164 and 165 are provided between the extending portions 162 and 163 and the lower surface 161e of the polygonal portion 161, respectively. The reinforcing ribs 164 and 165 are provided with two reinforcing ribs 164a, 164b, 165a, and 165b, respectively.

[0026] The reinforcing ribs 164a, 165a on the outer side (the front side F for the reinforcing rib 164 on the front side F, and the rear side B for the reinforcing rib 165 on the rear side B) are larger than the reinforcing ribs 164b, 165b on the inner side (the rear side B for the reinforcing rib 164 on the front side F, and the front side F for the reinforcing rib 165 on the rear side B). Considering the strength required to resist forces, such as torsion, applied to the keyboard instrument stand, it is desirable to provide large reinforcing ribs on the outer side of the connecting member 160. In this embodiment, the reinforcing ribs 164a, 165a are provided slightly inward from the outermost side of the connecting member 160. This is because placing large reinforcing ribs on the outermost side of the connecting member 160 would detract from the aesthetic appearance. The reinforcing ribs 164, 165 are provided so that their thickness gradually decreases from the underside 161e of the polygonal portion 161 toward the extension portions 162, 163. Additionally, screw members 31 are provided on the undersides Lo of the reinforcing ribs 164, 165 of the extended portion 162 to secure the first leg main body 111 of the first leg member 110 and the second leg main body 121 of the second leg member 120 to the extended portions 162, 163. The screw members 31 are inserted through holes 162b, 163b (see FIG. 8) provided in the extended portions 162, 163, and are threaded into female threads (not shown) provided in the first leg main body 111 and the second leg main body 121 corresponding to the holes 162b, 163b.

[0027] As shown in Fig. 8, the extension portions 162, 163 are provided in a substantially plate-like shape. The extension portions 162, 163 are provided with extension surfaces 162a, 163a that are continuous with the lower side Lo and bend outward from the first surface 161a and the second surface 161b (towards the first leg member 110 and the second leg member 120). The male thread portion 111c2 of the first leg member 110 is inserted into the hole 161a1 of the first surface 161a, and a nut 32 is screwed into the hole 161a1 from the inside of the polygonal portion 161 (see Fig. 5), thereby fixing the first leg member 110 to the connecting member 160. Similarly, the male thread portion 121c2 of the second leg main body 121 is inserted into the hole 161b1 of the second surface 161b, and a nut 32 is screwed into the hole 161b1 (see Fig. 4), thereby fixing the second leg member 120 to the connecting member 160. A protrusion (not shown) protruding from the metal plate 121c1 of the second leg member 120 is inserted into the hole 161b2 adjacent to the hole 161b1, thereby restricting the attachment of the second leg member 120 to the first surface 161a.

[0028] Furthermore, holes 162b and 163b are provided in the extension portions 162 and 163. The aforementioned screw members 31 for fixing the first leg member 110 and the second leg member 120 are inserted into the holes 162b and 163b, respectively. The holes 162b and 163b are disposed at different heights from the lower ends 162c and 163c of the extension portions 162 and 163, respectively. Specifically, the hole 162b is disposed at a position lower than the hole 163b by a length H. The different positions of the holes 162b and 163b ensure that the first leg member 110 and the second leg member 120 are attached without error.

[0029] 7, a knee brace member 130 is provided between and across the first leg main body 111 of the first leg member 110 and the second leg main body 121 of the second leg member 120. The knee brace member 130 is a substantially rectangular plate, and fixing plates 131, 132 are provided at both curved ends. The fixing plate 131 abuts against the second leg side surface 111f of the first leg main body 111 and is fixed by a screw member (not shown). The fixing plate 132 abuts against the first leg side surface 121e of the second leg main body 121 and is fixed by a screw member (not shown).

[0030] Regarding the stand 100, as shown in FIG. 2, the rigidity of the second leg members 120 (second leg main body 121) when the keyboard instrument 10 is pushed from the front side F to the rear side B with a force P1 while the lower ends of the two second leg members 120 on the rear side B are in contact with the wall surface WL1 will be described. Generally, the second moment of area of ​​a rectangular cross section is given by bh 3 / 12···(1) ) is expressed as follows. When a force P1 is applied from the front side F, as shown in FIG. 9, the component force vectors of the force P1 acting on the second leg main body 121 are expressed as a vector h1 in the front-to-rear direction FB and a vector b1 in the left-to-right direction LR. The second moment of area of ​​the second leg main body 121 is expressed as follows: "h" in equation (1) is the length of the horizontal cross section of the second leg main body 121 corresponding to the direction of vector h1 (hereinafter simply referred to as "cross-sectional length"), and "b" in equation (1) is the cross-sectional length of the second leg main body 121 corresponding to the direction of vector b1. The cross-sectional length of the second leg main body 121 corresponding to the direction of vector h1 is longer than the plate thickness T of the second leg main body 121. "h" in equation (1) is cubed. Therefore, by positioning the second leg main body 121 (second leg member 120) at approximately 45 degrees with respect to the front-to-rear direction FB, as in this embodiment, the rigidity of the second leg main body 121 can be increased. The same applies to the first leg member 110 when pressed from the rear side B with a force P1.

[0031] Next, regarding the stand 100, as shown in FIG. 2, the rigidity of the first leg member 110 and the second leg member 120 will be described when the keyboard instrument 10 is pushed from the right side R to the left side L with a force P2 while the lower ends of the first leg member 110 and the second leg member 120 on the left side L are in contact with a wall surface WL2. Here, the wall surface WL2 is assumed to be stepped with a low height, and the keyboard instrument 10 and the wall surface WL2 are not in contact. When the keyboard instrument 10 is pushed from the right side R with the force P2, as shown in FIG. 9, the component force vectors of the force P2 acting on the first leg main body 111 are represented by a vector h2 in the left-right direction LR and a vector b2 in the front-back direction FB. The second moment of area of ​​the first leg main body 111 is expressed by the formula (1) where "h" is the cross-sectional length of the first leg main body 111 corresponding to the direction of vector h2, and "b" is the cross-sectional length of the first leg main body 111 corresponding to the direction of vector b2. The cross-sectional length of the first leg main body 111 corresponding to the direction of vector h2 is longer than the plate thickness T of the first leg main body 111. "h" in equation (1) is then cubed. Therefore, by positioning the first leg main body 111 (first leg member 110) at approximately 45 degrees with respect to the front-to-rear direction FB, as in this embodiment, the rigidity of the first leg main body 111 can be increased. The same applies to the second leg member 120 (second leg main body 121).

[0032] Regarding the stand 100, as shown in Figure 2, when the second leg member 120 on the left side L is in contact with the intersection of the wall surfaces WL1 and WL2, and the keyboard instrument 10 is pushed from the front side F of the right side R to the rear side B of the left side L with a force P3 tilted at approximately 45 degrees from the front-to-back direction FB, "h" in equation (1) is the cross-sectional length of the second leg body 111 corresponding to the direction of vector h3, i.e., the long sides LL1 and LL2 of the rectangular shape (see Figure 3), and "b" in equation (1) is the cross-sectional length of the second leg body 111 corresponding to the direction of vector b3, i.e., the thickness T of the second leg body 121 (short sides SL1 and SL2, see Figure 3).

[0033] In this way, by arranging the first surface 161a and the second surface 161b at approximately 45 degrees with respect to the front-to-rear direction FB (or the left-to-right direction LR) and by arranging the first surface 161a and the second surface 161b so that they intersect at approximately a right angle, it is possible to increase the rigidity of the first leg member 110 and the second leg member 120 in the front-to-rear direction FB and the left-to-right direction LR, which are usually susceptible to forces represented by forces P1 and P2. Furthermore, the stand 100 of this embodiment does not simply use thick leg members and is arranged at approximately 45 degrees with respect to the front-to-rear direction FB, but also has first leg main body 111 and second leg main body 121 configured so that the rectangular cross-sectional area gradually decreases downward, thereby making it possible to provide the stand 100 with particularly increased rigidity and improved design in the upper portion (the side closer to the keyboard instrument 10).

[0034] The polygonal portion 161 may have the first surface 161a and the second surface 161b each disposed at, for example, approximately 45 degrees with respect to the front-rear direction FB (or the left-right direction LR). That is, the polygonal portion 161 may have an approximately pentagonal or triangular cylindrical shape in addition to the approximately hexagonal cylindrical shape shown in this embodiment. Furthermore, by providing the polygonal portion 161 with a bottom plate 161d and forming it into a cylindrical shape with a bottom, the rigidity of the polygonal portion 161 itself can be increased.

[0035] Furthermore, as shown in FIG. 7, when a torsional force M1 is applied to the first leg member 110 (second leg member 120), a truss structure TR is formed by the first leg member 110 (first leg main body 111), the second leg member 120 (second leg main body 121), and the knee brace member 130, thereby reducing damage to the first leg member 110 (second leg member 120).

[0036] Furthermore, damage to the first leg member 110 (second leg member 120) against force P3 from the direction of the first leg side surfaces 111e, 121e and the second leg side surfaces 111f, 121f is reduced by supporting the first leg member 110 (second leg member 120) with the knee brace members 130. Note that by arranging the knee brace members 130 near the leg upper surfaces 111a, 121a, the knee brace members 130 are hidden behind the keyboard instrument 10 and are difficult to see on the stand 100 to which the keyboard instrument 10 is fixed, which is often viewed from above (Up).

[0037] As described above, in an embodiment of the present invention, the stand 100 includes a cross member 150, a connecting member 160 including a polygonal portion 161 and provided on the cross member 150, and a first leg member 110 including a first leg main body 111 having a rectangular horizontal cross section Sa and fixed to a first surface 161a of the polygonal portion 161.

[0038] As a result, forces P1, P2 in the front-to-rear direction FB and the left-to-right direction LR can be received by plate thicknesses T1, T2 that are equal to or greater than plate thickness T3 of the member (first leg main body 111). This allows the stand 100 to be equipped with highly rigid legs (first leg members 110). Furthermore, the roughly square bar-shaped first leg member 110 can enhance the design of the stand 100.

[0039] Furthermore, the connecting member 160 includes an extension portion 162 having an extension surface 162a on the lower side Lo of the first surface 161a, and a reinforcing rib 164 is provided between the extension portion 162 and the lower surface 161e of the polygonal portion 161. This allows the first leg member 110 to be supported by the highly rigid connecting member 160, thereby making it possible to further increase the strength of the connection between the first leg member 110 and the connecting member 160.

[0040] Additionally, first leg main body 111 includes fixing surface 111c that is fixed by coming into face-to-face contact with first surface 161a. This allows stand 100 to be easily assembled with a simple configuration that only requires face-to-face contact and fastening with nuts 32.

[0041] Furthermore, in the portion Lo of the first leg main body 111 below the connecting member 160, the rectangular cross-sectional area Sa gradually decreases downward. This allows the first leg member 110 to be thick on the upper side Up and thin on the lower side Lo, so that the connection portion with the connecting member 160 can be made strong while still maintaining a stylish design.

[0042] Additionally, the first leg main body 111, in the portion below the connecting member 160, includes a leg inner side surface 111d provided on the first surface 161a side corresponding to the short sides SL1, SL2 of the rectangle, and a leg outer side surface 111b on the opposite side to the leg inner side surface 111d, and the angle θ2 that the leg inner side surface 111d makes with the horizontal plane (installation surface FL) is smaller than the angle θ1 that the leg outer side surface 111b makes with the horizontal plane. This allows for the first leg member 110 to have a highly aesthetic design.

[0043] Furthermore, in the portion of the first leg main body 111 below the connecting member 160 on the side Lo, the lengths of the long sides LL1 and LL2 of the rectangular shape in the cross section Sa gradually decrease toward the lower side Lo. This makes the lower side Lo of the stand 100 appear thinner, giving the impression that the supported keyboard instrument 10 is floating in the air.

[0044] Moreover, the first surface 161a is provided parallel to the vertical direction, which allows the connection structure between the connecting member 160 and the first leg member 110 to be simplified, resulting in a stand 100 with improved design.

[0045] The first surface 161a is also set so that the angle θ3 with respect to the front-rear direction FB is 40 to 45 degrees. This allows the arrangement of the first leg member 110 including the rectangular cross section Sa to be resistant to forces P1, P2 from the front-rear direction FB and the left-right direction LR (an arrangement that receives the forces P1, P2 with plate thicknesses T1, T2).

[0046] Furthermore, connecting members 160 are provided at both ends of cross member 150, and polygonal portion 161 includes second surface 161b that is perpendicular to first surface 161a, and second leg members including second leg body 121 having the same shape as first leg body 111 are fixed to second surface 161b. This allows for the configuration of stand 100 with four legs, with first leg member 110 and second leg member 120 arranged on the left and right sides, respectively.

[0047] Additionally, a knee brace member 130 is provided between the first leg main body 111 and the second leg main body 121. This allows the stand 100 to be equipped with legs that are even stronger.

[0048] The keyboard instrument set 1 also includes a stand 100 and a keyboard instrument 10 placed above the stand 100. This allows for the provision of a keyboard instrument set 1 that supports the keyboard instrument 10 and includes a stand 100 that is highly designed, strong, and rigid.

[0049] Although several 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 embodied 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 within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0050] 10: Keyboard instrument 100: Stand 110: First leg member 111: First leg body 111e: First leg side face 111f: Second leg side face 111g: Leg bottom face 120: Second leg member 121: Second leg body 121e: First leg side face 121f: Second leg side face 121g: Leg bottom face 130: Knee support member 131: Fixing plate portion 132: Fixing plate portion 150: Cross member 160: Connecting member 161: Polygonal portion 161a: First surface 161b: Second surface 161c: Third surface 161d: Bottom plate 162: Extension portion 162a: Extension surface 163: Extension portion 163a: Extension surface 164: Reinforcing rib 166: Cross member fixing portion 167: Pedal frame fixing part 168: Rear keyboard instrument fixing part 169: Front keyboard instrument fixing part 200: Pedal device 210: Pedal 250: Pedal frame FL: Installation surface

Claims

1. A horizontal member that is long in the left-right direction, a connecting member provided at an end of the cross member and to which the cross member is fixed; leg members including a first leg member and a second leg member each fixed to the connecting member; Including, The angle between the first leg member and the second leg member is approximately a right angle. stand.

2. The first leg member and the second leg member each include a leg body having a rectangular horizontal cross section. The stand of claim 1.

3. The connecting member includes an extension portion extending below the cross member and supporting the leg member. The stand of claim 1.

4. the connecting member has a keyboard instrument fixing portion for fixing a keyboard instrument, The connecting member has a positioning pin disposed thereon to determine a fixed position of the keyboard instrument. The stand of claim 1.

5. The connecting member has a pedal frame fixing portion that fixes the pedal frame. The stand of claim 1.

6. The connecting member has a polygonal portion that fixes the leg member. The stand of claim 1.

7. The connecting member has a reinforcing rib between an extension portion that supports the leg member and a lower surface of a polygonal portion that fixes the leg member. The stand of claim 1.

8. A stand according to any one of claims 1 to 7; a keyboard instrument placed above the stand; A keyboard instrument set comprising:

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