Pedal board for electronic instrument

The pedal board design with detachable leg members and elastomer gap buffers addresses the issues of conventional boards by facilitating easy top plate replacement and noise reduction, ensuring robust load-bearing capacity and aesthetic appeal.

WO2026121404A1PCT designated stage Publication Date: 2026-06-11CHAE WON WOO +1

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
CHAE WON WOO
Filing Date
2025-01-23
Publication Date
2026-06-11

Smart Images

  • Figure KR2025000690_11062026_PF_FP_ABST
    Figure KR2025000690_11062026_PF_FP_ABST
Patent Text Reader

Abstract

Disclosed is a pedal board for an electronic instrument. The pedal board for an electronic instrument according to the present invention comprises: connecting rods that have an elongated body manufactured by extrusion and have first fixing holes formed in both end surfaces and a first groove formed in the bottom surface; an upper plate; a pair of leg members that are formed by die casting and have second fixing holes, at positions corresponding to the first fixing holes, on the side end surfaces, and second grooves, having a shape symmetrical to the first groove, on the bottom surfaces; a temporary fixing pin; and a coupling piece. The connecting rods and the leg members are coupled to each other, and the length of the connecting rods coupled to the leg members may be changed and set when the area of the pedal board needs to be adjusted. In the pedal board for an electronic instrument according to the present invention, the connecting rods are manufactured using an extrusion method suitable for mass production, whereas the leg members are manufactured using a die-casting method suitable for small-scale production. Accordingly, when the pedal board is mass-produced and supplied using a large variety of connecting rods and a relatively limited variety of leg members, manufacturing costs are not overly burdensome and the overall appearance of the products is aesthetically pleasing. Also, the leg members in the pedal board for an electronic instrument according to the present invention can be easily modified and applied to obtain an appropriate slope in various environments, and the pedal board has sufficient load resistance.
Need to check novelty before this filing date? Find Prior Art

Description

pedal boards for electronic instruments

[0001] The present invention relates to a pedalboard for electronic musical instruments, and more specifically, to a pedalboard used by musicians when handling electronic musical instruments for fixing various effectors and pedals that assist electronic musical instruments.

[0002] When using two or more pedal switches (footswitches) on electronic instruments such as electric guitars or electric pianos, attachment switches are set up on a box or board to fix the switches in place for easier operation; this box or board is called a pedal board. On the top surface of such a pedal board, various effects and amplifiers are organized and fixed together with the power supply to produce the sound desired by the performer. These include a power supply to provide power, an over-input 385 (also called a wah) pedal to control input levels to intentionally distort the sound or to over-input the sound, and a compressor to compress the input sound to control its energy and dynamics.

[0003]

[0004] Figure 1 shows a conventional horizontal pedalboard, and Figure 2 shows a conventional inclined pedalboard. Referring to Figures 1 and 2, the pedalboards that have been used in the past mainly consist of horizontal pedalboards that are horizontal or inclined pedalboards that are formed at an angle, as shown in Figures 1 and 2.

[0005]

[0006] These conventional pedal boards have the inconvenience of requiring all mounted effects to be removed and replaced with different types in order to play with a different tone or mood. Additionally, conventional pedal boards present a problem in that even when using a tilted or horizontal setup, all pedals and effects mounted on the top plate must be removed and mounted on a new pedal board.

[0007]

[0008] In addition, conventional pedal boards were inconvenient because, for example, when various effects and pedals were installed in two rows on the top surface of the pedal board, when attempting to step on the effect pedal installed in the second row, the control knob of the effect pedal installed in the first row was touched first before the foot even touched the switch.

[0009]

[0010] Another conventional pedal board designed to solve these problems is disclosed in Korean Registered Utility Model No. 20-0457840. The pedal board according to the above registered utility model is configured with a multi-stage top surface to separate it into an upper section and a lower section, allowing effectors and pedals to be installed in each section, thereby preventing other knobs on the lower section from being touched when stepping on a pedal on the upper section. However, such conventional pedal boards have inconveniences in use, such as requiring the ankle to be bent at an excessive angle to operate them. To solve these problems, some conventional pedal boards are equipped with an angle adjustment tool. However, conventional pedal boards equipped with such an angle adjustment tool have a problem in that if the adjustment tool breaks due to the significant weight of the pedals and amplifiers attached to the top plate of the pedal board, the equipment may tip over and cause damage.

[0011]

[0012] Meanwhile, conventional pedalboards for electronic musical instruments often have the problem that noise frequently occurs in the gaps when playing while operating the pedals, and that the noise becomes even more severe in harsh environments where the temperature exceeds -10°C or the humidity exceeds 70% RH.

[0013]

[0014] The present invention was developed to solve the aforementioned problems, and the technical objective of the present invention is to provide a pedal board for electronic musical instruments that provides sufficient load-bearing capacity by detachably fixing leg members manufactured by a die-casting method to the left and right ends of the connecting rods constituting the pedal board, thereby making it easy to separate, combine, and replace the top plate to provide convenience when setting up the board, and allowing it to be changed to various board sizes by changing the length of the connecting rods, as well as providing sufficient load-bearing capacity at a reasonable cost, and which generates almost no noise even in harsh environments where the temperature exceeds -10℃ or the humidity exceeds 70% RH.

[0015] A pedalboard for an electronic instrument according to the present invention for achieving the above objective is,

[0016] A connecting member (30) formed by processing and forming a first fixing hole (300) on both end surfaces and a first groove (302) and a plurality of first through holes (304) on the bottom surface after the longitudinal body is manufactured by extrusion;

[0017] A top plate (32) that is mounted and fixed to the upper surface of the above connecting rod (30) and on which pedals are mounted and installed;

[0018] A pair of leg members (34a, 34b) formed by die casting, detachably fixed to the left and right ends of the connecting member (30), formed with a constant slope from bottom to top, having a second fixing hole (340) at a position corresponding to the first fixing hole (300) on the side surface, and having a second groove (342) having a shape symmetrical to the first groove (302) and a plurality of second through holes (344) on the bottom surface;

[0019] A temporary fixing pin (36) that is inserted into the first fixing hole (300) at one end and inserted into the second fixing hole (340) at the other end to temporarily fix the connecting rod (30) and the leg members (34a, 34b); and

[0020] A connecting piece (38) that is fitted into the first groove (302) and the second groove (342) and is provided with a plurality of third through holes (385) and is fixedly coupled to the bottom surface of the connecting member (30) and the leg members (34a, 34b) by means of a first fixing bolt or fixing screw (385);

[0021] With the connecting rod (30) and the leg members (34a, 34b) combined, it is possible to easily detach the entire top plate equipped with effectors capable of producing a certain tone or atmosphere and replace it with a top plate equipped with effectors capable of producing a different tone or atmosphere to play.

[0022] The connecting rod (30) and the leg members (34a, 34b) are detachably connected to each other, and when the width of the pedal board is to be changed, the length of the connecting rod (30) connected to the leg members (34a, 34b) can be changed to set the width.

[0023] In addition, the connecting piece (38) is provided with a plurality of third through holes (384), and a first fixing bolt or fixing screw (385) passes through the third through holes (384) and is fixedly connected to the bottom surface of the connecting member (30) and the leg members (34a, 34b).

[0024] It is preferable that the second fixing bolt or fixing screw (388) passes through the first through hole (304) or the second through hole (344) and is fixed to the top plate (32).

[0025] Additionally, it is more preferable to further include a reinforcing plate (390) that supports a top plate (32) and pedals placed on the top plate (32) and is fixed to the connecting rod (30).

[0026] Additionally, it is preferable to further include a gap buffer member (392) selected from butyl (IIR) series elastomer, silicone (VMQ) series elastomer, polyether urethane (EU) series elastomer, hydrogenated nitrile (HNBR) series elastomer, or a combination thereof, to absorb vibrations that may occur due to gaps between the bottom surface of the top plate (32) and the top surface of the connecting member (30) and between the bottom surface of the top plate (32) and the top surface of the leg members (34a, 34b).

[0027] In addition, it is more preferable that the gap buffer member (392) be made of a hydrogenated nitrile (HNBR) series elastomer material.

[0028] In the pedalboard for electronic musical instruments according to the present invention, the connecting members are manufactured by an extrusion method suitable for mass production, whereas the leg members are manufactured by a die-casting method suitable for small-batch production; thus, when supplying various types of connecting members and relatively limited types of leg members in mass production, there is no significant burden on manufacturing costs, and the overall appearance of the product is aesthetically pleasing.

[0029] In addition, the pedalboard for an electronic instrument according to the present invention is easy to apply by modifying the leg members to provide a suitable slope in various environments and has sufficient load-bearing capacity.

[0030] In addition, the pedal board for an electronic instrument according to the present invention has the effect of allowing the entire top plate, which is equipped with effectors capable of producing a certain tone or atmosphere while the connecting rod and leg member are combined, to be easily detached and replaced with a top plate equipped with effectors capable of producing a different tone or atmosphere for playing.

[0031] In addition, according to the present invention, between the bottom surface of the top plate and the top surface of the connecting member and between the bottom surface of the top plate and the top surface of the leg member, a gap cushioning member made of an elastomer material is included to absorb vibrations that may be caused by gaps, so that there is almost no noise generation even in harsh environments where the temperature exceeds -10℃ or the humidity exceeds 70% RH.

[0032] Figure 1 is a photograph showing a conventional horizontal pedalboard,

[0033] Figure 2 is a photograph showing a conventional inclined pedalboard,

[0034] FIG. 3 is an exploded perspective view showing the structure of a pedal board for an electronic musical instrument according to an embodiment of the present invention.

[0035] FIG. 4 is a partial perspective view showing the state in which a connecting rod and a leg member constituting a pedal board for an electronic instrument according to an embodiment of the present invention are fixed by a connecting piece.

[0036] FIG. 5 is a perspective view showing a state in which a gap cushioning member is mediated in a pedal board for an electronic instrument according to an embodiment of the present invention.

[0037] FIG. 6 is a perspective view illustrating the state before mounting a pedal on a pedalboard for an electronic instrument according to the present invention.

[0038] FIG. 7 is a perspective view illustrating a state in which a pedal is mounted on a pedalboard for an electronic instrument according to the present invention.

[0039] FIGS. 8 and 9 are photographs of a prototype showing a bottom surface state in which a connecting rod and a leg member are joined by a connecting piece in a pedalboard for an electronic instrument according to the present invention, and

[0040] FIG. 10 is a photograph of a prototype showing a perspective view in which a connecting rod and a leg member are combined in a pedalboard for an electronic instrument according to the present invention.

[0041] Preferred embodiments according to the present invention will be described in more detail below with reference to the attached drawings.

[0042] FIG. 3 shows the structure of a pedal board for an electronic instrument according to an embodiment of the present invention as an exploded perspective view.

[0043] Referring to FIG. 3, the pedal board for an electronic musical instrument according to the present invention is,

[0044] A connecting member (30) formed by processing and forming a first fixing hole (300) on both end surfaces and a first groove (302) and a plurality of first through holes (304) on the bottom surface after the body in the longitudinal direction is manufactured by extrusion,

[0045] A top plate (32) that is mounted and fixed to the upper surface of the above connecting rod (30) and on which pedals are mounted and installed,

[0046] A pair of leg members (34a, 34b) formed by die casting, detachably fixed to the left and right ends of the connecting member (30), formed with a constant slope from bottom to top, having a second fixing hole (340) at a position corresponding to the first fixing hole (300) on the side surface, and having a second groove (342) with a shape symmetrical to the first groove (302) and a plurality of second through holes (344) on the bottom surface.

[0047] A temporary fixing pin (36) that is inserted into the first fixing hole (300) at one end and inserted into the second fixing hole (340) at the other end to temporarily fix the connecting rod (30) and the leg members (34a, 34b), and

[0048] It is composed of a connecting piece (38) that is fitted into the first groove (302) and the second groove (342), is provided with a plurality of third through holes (385), and is fixedly coupled to the bottom surface of the connecting member (30) and the leg member (34a, 34b) by means of a first fixing bolt or fixing screw (385).

[0049]

[0050] Additionally, a second fixing bolt or fixing screw (388) passes through the first through hole (304) or the second through hole (344) and is fixed to the top plate (32).

[0051]

[0052] Accordingly, the pedal board for an electronic instrument according to the present invention as described above can be played by easily separating the entire top plate equipped with effectors capable of producing a certain tone or atmosphere while the connecting rod (30) and the leg members (34a, 34b) are combined, and replacing it with a top plate equipped with effectors capable of producing a different tone or atmosphere.

[0053]

[0054] In addition, the pedal board for an electronic instrument according to the present invention as described above has a connecting rod (30) and leg members (34a, 34b) that are detachably connected to each other, and when the width of the pedal board is to be changed, the length of the connecting rod (30) connected to the leg members (34a, 34b) can be changed to set it.

[0055]

[0056] Additionally, a reinforcing plate (390) that supports a top plate (32) and pedals placed on the top plate (32) is fixed to the connecting member (30).

[0057]

[0058] FIG. 4 is a partial perspective view showing the state in which a connecting rod and a leg member constituting a pedal board for an electronic instrument according to an embodiment of the present invention are fixed by a connecting piece. Referring to FIG. 4, a connecting piece (38a, 38b) that fits into a first groove (302) and a second groove (342) is provided so that the connecting rod (30) and the leg member (34a, 34b) are fixedly connected.

[0059]

[0060] At this time, with the connecting rod (30) and the leg members (34a, 34b) fixed by the temporary fixing pin (36), it is possible to conveniently connect the connecting rod (30) and the leg members (34a, 34b) by inserting the connecting piece (38a, 38b) into the first groove (302) provided in the connecting rod (30) and the second groove (342) provided in the leg members (34a, 34b) and fixing them together, and the fixed state is solid.

[0061]

[0062] In addition, since the first groove (302) and the second groove (342) have symmetrical shapes, the connecting pieces (38a, 38b) can be inserted into the first groove (302) and the second groove (342) without needing to distinguish between left and right directions.

[0063]

[0064] Additionally, the connecting piece (38a, 38b) may be provided with a plurality of through holes (380), and a fixing screw (382) that passes through the through holes (380) and is fixed to the upper or lower surface of the connecting member (30) and the leg member (34a, 34b) may be additionally provided.

[0065]

[0066] The pedalboard for an electronic instrument according to the present invention, constructed as described above, is manufactured by an extrusion method suitable for mass production because the connecting member is required to be selectable in various lengths depending on the playing situation, whereas the leg member is manufactured by a die-casting method suitable for small-batch production because it is required to be selectable within a relatively limited range. Therefore, when supplying in mass production with various types of connecting members and relatively limited types of leg members, there is no significant burden on manufacturing costs, and the overall appearance of the product is aesthetically pleasing.

[0067]

[0068] In addition, the pedalboard for an electronic instrument according to the present invention as described above is easy to apply by modifying the leg members to provide a suitable slope in various environments and has sufficient load-bearing capacity.

[0069]

[0070] In particular, it is worth noting that the pedal board for an electronic instrument according to the present invention, as described above, has the effect of allowing the entire top plate, which is equipped with effectors capable of producing a certain tone or atmosphere while the connecting rod and leg member are combined, to be easily separated and replaced with a top plate equipped with effectors capable of producing a different tone or atmosphere for playing.

[0071]

[0072] FIG. 5 is a perspective view showing a state in which a gap cushioning member is mediated in a pedal board for an electronic instrument according to an embodiment of the present invention. Referring to FIG. 5, between the bottom surface of the top plate (32) and the top surface of the connecting member (30), and between the bottom surface of the top plate (32) and the top surface of the leg members (34a, 34b), a gap cushioning member (392) selected from butyl (IIR) series elastomer, silicone (VMQ) series elastomer, polyether urethane (EU) series elastomer, hydrogenated nitrile (HNBR) series elastomer, or a combination thereof may be further included to absorb vibrations that may be generated by the gap.

[0073]

[0074] Meanwhile, it is very important that no noise is generated in the environment where electronic instruments are played. In order to prevent noise from being generated, the present invention is manufactured by adding a special component to a rubber gap cushioning member, thereby designing it so that no noise is generated even when used for a long period in a harsh environment where the temperature exceeds -10℃ or the humidity exceeds 70% RH.

[0075]

[0076] According to the present invention, an elastomer, a type of rubber material, is applied to the gap cushioning member. Elastomer is an elastic plastic material that is a high-value synthetic resin possessing both the advantages of rubber, which stretches when force is applied, and plastic, which is easy to process. It is used in automotive bumpers, shoe absorbent layers, functional films, and wire cable sheathing. Furthermore, elastomer is a polymer material that exhibits rubber elasticity at room temperature and can rapidly undergo reversible large deformations of several hundred percent. Since its essence lies in entropic elasticity caused by the thermal motion of long molecular chains, it loses rubber elasticity at low temperatures where molecular motion is suppressed. In addition to vulcanized natural rubber and synthetic rubber, there are thermoplastic elastomers, elastic fibers, and foams.

[0077]

[0078] [Example 1]

[0079] Butyl (IIR) series elastomers

[0080]

[0081] [Example 2]

[0082] Silicon (VMQ) series elastomers

[0083]

[0084] [Example 3]

[0085] Polyether urethane (EU) series elastomers

[0086]

[0087] [Example 4]

[0088] Hydrogenated Nitrile (HNBR) Series Elastomers

[0089]

[0090] [Comparative Example 1]

[0091] No gap member installed

[0092]

[0093] [Comparative Example 2]

[0094] NBR rubber gap member

[0095]

[0096] [Comparative Example 3]

[0097] SBR rubber gap member

[0098]

[0099] [Comparative Example 4]

[0100] EPDM rubber gap member

[0101]

[0102] For the above examples and comparative examples, the occurrence of noise according to the gap cushioning performance was evaluated. Table 1 shows the results.

[0103] Classification | Gait Area | Presence of Noise | Environmental Assessment Results (Presence of Noise in Harsh Environments) | Remarks Example 1 | Butyl (IIR) series elastomer Example 2 | Silicone (VMQ) series elastomer Example 3 | Polyether urethane (EU) series elastomer Example 4 | Hydrogenated nitrile (HNBR) series elastomer Comparative Example 1 | No gap member installed Comparative Example 2 | NBR rubber material Comparative Example 3 | SBR rubber material Comparative Example 4 | EPDM rubber material

[0104]

[0105] Referring to Table 1, when playing for 5 hours while operating the pedal with a microphone installed in the gap area in a 40℃, 80% RH environment, only the noise generated in the gap area was isolated and measured. Based on the instantaneous maximum measurement, cases where almost no noise was measured (less than 5dB) were indicated as ◎, cases where weak noise was measured (more than 5dB to 10dB) were indicated as ○, cases where noise was measured (more than 10dB to 20dB) were indicated as △, and cases where significant noise was measured (more than 20dB) were indicated as ×. In addition, environmental resistance was evaluated by measuring noise under the same conditions: after leaving the device for 48 hours in a 60℃, 80% RH environment and for 48 hours in a -20℃ environment, the noise generated in the gap area was isolated and measured when playing for 5 hours while operating the pedal with a microphone installed in the gap area in a 40℃, 80% RH environment.

[0106]

[0107] Referring to Table 1, in Comparative Example 1, where no clearance member was installed, significant noise was generated. In Comparative Examples 2 and 3, where a clearance member made of non-elastomer NBR rubber and a clearance member made of SBR rubber were installed, noise was measured to be between 10dB and 20dB, but significant noise was generated in harsh environments, indicating a problem with environmental resistance. Additionally, in Comparative Example 4, where an EPDM rubber clearance member was applied, weak noise was measured to be between 5dB and 10dB, but noise was measured to be between 10dB and 20dB in harsh environments.

[0108]

[0109] On the other hand, when an elastomer was applied as a gap buffer member as in Examples 1 to 4, almost no noise was measured at less than 5 dB in a normal environment, and when a polyether urethane (EU) series elastomer was applied as in Example 3 or a hydrogenated nitrile (HNBR) series elastomer was applied as in Example 4, excellent results were shown in noise characteristics even in cold weather environments of -20°C or humid weather environments of 80% RH.

[0110]

[0111] As described above, according to the present invention, a gap cushioning member made of elastomer material is included to absorb vibrations that may occur due to gaps between the bottom surface of the top plate and the top surface of the connecting member and between the bottom surface of the top plate and the top surface of the leg member, so there is almost no noise generation even in harsh environments such as cold weather environments of -20℃ or humid weather environments of 80% RH.

[0112]

[0113] FIGS. 6 and FIGS. 7 respectively show a state before a pedal is mounted on a pedalboard for an electronic instrument according to the present invention and a state after the pedalboard is mounted.

[0114]

[0115] As described above, the leg members provided in the electronic instrument pedalboard according to the present invention are manufactured using a die-casting method suitable for small-batch production, resulting in an aesthetically pleasing overall appearance of the product. Furthermore, the electronic instrument pedalboard is easy to adapt by modifying the leg members to provide an appropriate slope for various environments and possesses sufficient load-bearing capacity. Additionally, while the connecting rod and the leg members are combined, the entire top plate, which is equipped with effectors capable of producing a specific tone or atmosphere, can be easily detached and replaced with a top plate equipped with effectors capable of producing a different tone or atmosphere for playing.

[0116]

[0117] FIGS. 8 and 9 show a bottom view of a prototype of a pedalboard for an electronic instrument according to the present invention, in which a connecting rod and a leg member are joined by a connecting piece. Referring to FIGS. 8 and 9, when the width of the pedalboard for an electronic instrument according to the present invention is to be changed while the connecting rod and the leg member are joined together, the connecting piece is separated, and the length of the connecting rod joined to the leg member is changed and re-attached, thereby allowing for convenient setting.

[0118]

[0119] FIG. 10 shows a perspective photograph of a prototype of a pedalboard for an electronic instrument according to the present invention, in which a connecting rod and a leg member are combined. Referring to FIG. 10, the pedalboard for an electronic instrument according to the present invention maintains a state in which the connecting rod is in close contact with the floor. Even when the length of the connecting rod is changed and combined with the leg member to be re-mounted, there is no change in the state of contact of the connecting rod, and the constant inclination set by the leg member is maintained. Furthermore, it is possible to set it up firmly without breaking or tipping over even when the weight of the pedals mounted on the top plate is considerable. Moreover, load-bearing capacity can be secured more robustly by means of a reinforcing plate fixed to the connecting rod.

[0120]

[0121] In particular, as can be seen from the photograph, the connecting member provided in the electronic instrument pedalboard according to the present invention is manufactured by an extrusion method suitable for mass production, whereas the leg member is manufactured by a die-casting method suitable for small-batch production. Thus, while there is no significant burden on manufacturing costs when supplying various types of connecting members and relatively limited types of leg members in mass production, the overall appearance of the product is aesthetically pleasing.

Claims

1. A connecting member (30) formed by processing and forming a first fixing hole (300) on both end surfaces and a first groove (302) and a plurality of first through holes (304) on the bottom surface after the longitudinal body is manufactured by extrusion; A top plate (32) that is mounted and fixed to the upper surface of the above connecting rod (30), on which pedals are mounted and installed; A pair of leg members (34a, 34b) formed by die casting, detachably fixed to the left and right ends of the connecting member (30), formed with a constant slope from bottom to top, having a second fixing hole (340) at a position corresponding to the first fixing hole (300) on the side surface, and having a second groove (342) having a shape symmetrical to the first groove (302) and a plurality of second through holes (344) on the bottom surface; A temporary fixing pin (36) that is inserted into the first fixing hole (300) at one end and inserted into the second fixing hole (340) at the other end to temporarily fix the connecting rod (30) and the leg members (34a, 34b); and It includes a connecting piece (38) that is fitted into the first groove (302) and the second groove (342) and is provided with a plurality of third through holes (385) and is fixedly coupled to the bottom surface of the connecting member (30) and the leg members (34a, 34b) by means of a first fixing bolt or fixing screw (385). With the connecting rod (30) and the leg members (34a, 34b) combined, it is possible to easily detach the entire top plate equipped with effectors capable of producing a certain tone or atmosphere and replace it with a top plate equipped with effectors capable of producing a different tone or atmosphere to play. A pedal board for an electronic instrument, characterized in that the connecting rod (30) and the leg members (34a, 34b) are detachably connected to each other, and when the width of the pedal board is to be changed, the length of the connecting rod (30) connected to the leg members (34a, 34b) can be changed to set the width.

2. In Paragraph 1, A pedal board for an electronic instrument, characterized in that a second fixing bolt or fixing screw (388) passes through the first through hole (304) or the second through hole (344) and is fixed to the top plate (32).

3. A pedal board for an electronic instrument according to claim 1, further comprising a top plate (32) fixed to the connecting rod (30) and a reinforcing plate (390) supporting pedals placed on the top plate (32).

4. In claim 1, the pedal board for an electronic instrument further comprises a gap damping member (392) selected from butyl (IIR) series elastomer, silicone (VMQ) series elastomer, polyether urethane (EU) series elastomer, hydrogenated nitrile (HNBR) series elastomer, or a combination thereof, for absorbing vibrations that may occur due to gaps between the bottom surface of the top plate (32) and the top surface of the connecting member (30) and between the bottom surface of the top plate (32) and the top surface of the leg members (34a, 34b).

5. In paragraph 4, the gap buffer member (392) is, A pedal board for electronic musical instruments characterized by being made of hydrogenated nitrile (HNBR) series elastomer material.