JP7112696B2 - electronic cymbal pads - Google Patents

Description

The present invention relates to electronic cymbal pads.

Conventional electronic cymbal pads generally have a structure in which thick rubber is covered on a plastic base material in order to improve quietness. As a conventional example of an electronic cymbal pad, there is Non-Patent Document 1, for example.

Roland, "CY-18DR, V-Cymbal Digital Ride", [online], [searched March 9, 2018], Internet <URL: https://www.roland.com/jp/products/cy-18dr />

Although the electronic cymbal pad described above is excellent in quietness, it is difficult to say that it can sufficiently reproduce the hitting feel of an acoustic cymbal.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an electronic cymbal pad that reproduces the hitting feel of an acoustic cymbal and is also quiet.

The electronic cymbal pad of the present invention includes a substrate, a porous resin sheet covering the upper surface of the substrate, a hard resin sheet covering the upper surface of the porous resin sheet, and a rubber sheet covering the upper surface of the hard resin sheet.

The electronic cymbal pad of the present invention reproduces the hitting feel of an acoustic cymbal and is also quiet.

FIG. 2 is an exploded perspective view of part of the components that constitute the electronic cymbal pad of Example 1;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail. Components having the same function are given the same number, and redundant description is omitted.

A part of the components constituting the electronic cymbal pad of Example 1 will be described below with reference to FIG. As shown in the figure, the electronic cymbal pad 1 of this embodiment includes a substrate 11, a porous resin sheet 12 covering the upper surface of the substrate 11, and a hard resin sheet 13 covering the upper surface of the porous resin sheet 12. , a rubber sheet 14 covering the upper surface of the hard resin sheet 13, an arm connecting member 15, and a design part 16. As shown in FIG. The electronic cymbal pad 1 of this embodiment includes parts other than the parts shown in the figure, such as piezo elements, parts for attaching the piezo elements to the pad main body, and parts used for fixing the arm and the main body. are omitted in the figure. Each component shown in the figure will be described in detail below.

<Base material 11>
The base material 11 is a disk-shaped part made of hard resin such as ABS resin (acrylonitrile, butadiene, styrene copolymer synthetic resin). As used herein, the term "hard" refers to a material having a Rockwell hardness (test method D785) of R80 or higher. The base material 11 is a base component on which other components, which will be described later, are stacked. As other materials for forming the base material 11, HDPE (high density polyethylene), PVC (vinyl chloride, hard), PC (polycarbonate), PMMA (acrylic), PP (polypropylene), etc. may be used.

The base material 11 was made of ABS resin, the thickness was changed from 2.0 mm to 6.0 mm in increments of 1.0 mm, and the conditions of the other parts were set to the optimum conditions described later, and an experiment was conducted to evaluate the hit feeling. By the way, the results shown in the table below were obtained.

When the base material 11 was made of ABS resin and the thickness was set to 2.0 mm, it was not possible to ensure sufficient strength for repeated playing. Also, when the substrate 11 was made of ABS resin and the thickness was 6.0 mm, the hitting feeling was too hard, and the hitting feeling of an acoustic cymbal could not be reproduced. When the base material 11 was made of ABS resin and the thickness was set to 3.0 mm to 5.0 mm, both strength and hitting feel were satisfied. It should be noted that the hitting feel was most faithfully reproduced at a thickness of 4.0 mm. Therefore, it is preferable that the base material 11 is made of ABS resin and has a thickness of 3.0 mm or more and 5.0 mm or less.

<Porous resin sheet 12>
The porous resin sheet 12 is a ring-sheet-shaped part with countless fine holes (=porous) inside, and the above-described design part 16 is inserted into one end of the ring-sheet shape. It includes a notch 121 for The porous resin sheet 12 is made of EPDM (ethylene-propylene-diene rubber) sponge, for example. Other materials for forming the porous resin sheet 12 include NR sponge (natural rubber), CR sponge (chloroprene rubber), NBR sponge (nitrile rubber), Si rubber sponge (silicon rubber), SBR sponge (styrene butadiene rubber). ) and the like may be used.

The thickness of the porous resin sheet 12 is changed to 2.0, 3.0, 4.0, 5.0, 7.0, 10 mm, the conditions of other parts are set to the optimum conditions described above or later, When an experiment was conducted to evaluate the feel on impact, the results shown in the table below were obtained.

When the porous resin sheet 12 is made of EPDM sponge and has a thickness of 2.0 mm, the sponge is too thin. I couldn't reproduce the feeling. Moreover, when the porous resin sheet 12 was made of EPDM sponge and the thicknesses were set to 7.0 mm and 10 mm, the sponge was too thick, and the elastic force of the sponge was too large, and the rebound of the stick was too strong. I couldn't reproduce the feel of an acoustic cymbal. On the other hand, when the porous resin sheet 12 was made of EPDM sponge and had a thickness of 3.0 mm to 5.0 mm, it was possible to faithfully reproduce the bounce (feeling of repulsion) peculiar to acoustic cymbals. Therefore, it is preferable that the porous resin sheet 12 is an EPDM sponge and has a thickness of 3.0 mm or more and 5.0 mm or less.

Furthermore, an EPDM sponge was used as the porous resin sheet 12, and an optimum thickness (3.0 mm or more and 5.0 mm or less) was used. got the result.

When the porous resin sheet 12 is an EPDM sponge (3.0 mm or more and 5.0 mm or less) and the hardness (Asker C type) is 10 or 20, the sponge is too soft, so the stick sinks deeply into the base material. 11 was hit directly, and the hit feeling of an acoustic cymbal could not be reproduced. When the porous resin sheet 12 is an EPDM sponge (3.0 mm or more and 5.0 mm or less) and the hardness (Asker C type) is set to 50, the sponge becomes too hard and the feel at impact approaches that of rubber. I couldn't reproduce the feel of an acoustic cymbal. On the other hand, when the EPDM sponge (3.0 mm or more and 5.0 mm or less) was used as the porous resin sheet 12 and the hardness (Asker C type) was set to 35, the hitting feel of the acoustic cymbal could be faithfully reproduced. Therefore, for the porous resin sheet 12, the thickness of the EPDM sponge should be 3.0 mm or more and 5.0 mm or less, and the hardness should be around 35. The hardness should be 20 or less and the hardness should be 50 or more. More than 45 or less is preferable.

<Hard resin sheet 13>
The hard resin sheet 13 is a ring sheet-shaped part made of a hard resin such as PET (polyethylene terephthalate), and has a ring sheet-shaped part at one end for inserting the design part 16 described above. Including notch 131 . Other materials for forming the hard resin sheet 13 may include HDPE (high density polyethylene), PVC (vinyl chloride, hard), PC (polycarbonate), PMMA (acrylic), PP (polypropylene), and the like.

The material of the hard resin sheet 13 is PET, and its thickness is changed to 0.25, 0.30, 0.40, 0.50, 0.60, 0.70, 1.5, 2.0 mm. Under the optimal conditions described above or below, an experiment was conducted to evaluate the feel on impact, and the results shown in the table below were obtained.

When PET was used as the hard resin sheet 13 and the thickness was set to 0.25 mm, the sheet was too thin, resulting in a film-like texture, and a hard hitting feel could not be obtained. Moreover, when the hard resin sheet 13 is made of PET and the thickness is set to 1.5 mm or 2.0 mm, the sheet is too thick, and the hitting feeling becomes too hard, reproducing the hitting feeling of an acoustic cymbal. couldn't. On the other hand, when the hard resin sheet 13 was made of PET and had a thickness of 0.3 mm to 0.7 mm, it was possible to faithfully reproduce the feel of striking a metal peculiar to an acoustic cymbal. Therefore, it is preferable that the hard resin sheet 13 is made of PET and has a thickness of 0.3 mm or more and 0.7 mm or less.

<Rubber sheet 14>
The rubber sheet 14 is a disk-shaped component imitating the shape of a cymbal made of elastic rubber such as EPDM (ethylene-propylene-diene rubber). It includes a simulated bow portion 142 and an edge portion 143 that simulates the edge of an acoustic cymbal. A hole 1421 for fitting the design part 16 is provided in the bow portion 142 . Other materials for forming the rubber sheet 14 include CR (chloroprene rubber), SBR (styrene-butadiene rubber), IR (isoprene rubber), BR (butadiene rubber), NBR (acrylonitrile-butadiene rubber), and the like. Alternatively, non-diene rubber such as IIR (isobutylene-isoprene rubber), EPM (ethylene-propylene rubber), Si, Q (silicone rubber), FKM (fluororubber), etc. may be used. The material of the rubber sheet 14 was EPDM, its thickness was changed to 0.25, 0.50, 1.0, 2.0, and 3.0 mm, the conditions of the other parts were set to the optimum conditions described above, and the stamping was performed. When an experiment was conducted to evaluate the sensation, the results shown in the table below were obtained.

When the rubber sheet 14 was made of EPDM and the thicknesses were set to 0.25 mm and 0.50 mm, the sheet was too thin, so the silence was insufficient and the impact sound was too loud. In addition, when the rubber sheet 14 is made of EPDM and the thickness is set to 2.0 mm or 3.0 mm, the sheet becomes too thick, and the hitting feeling becomes close to that of hitting rubber. I couldn't reproduce the feeling of hitting. On the other hand, when the rubber sheet 14 was made of EPDM and had a thickness of 1.0 mm, the hitting feel of an acoustic cymbal could be faithfully reproduced while maintaining quietness. Therefore, the rubber sheet 14 is made of EPDM and has a thickness of around 1.0 mm. 5 mm or less is preferable.

Furthermore, after making the rubber sheet 14 of EPDM, the optimal thickness (0.70 mm to 1.5 mm) was used, and an experiment was conducted to evaluate the feel of impact by changing the hardness, and the results shown in the table below were obtained. .

As a result of using EPDM (0.70 mm to 1.5 mm) for the rubber sheet 14 and setting the hardness (durometer type A) to 40 or 50, the rubber is too soft, so that the stick sinks deeply and hits the hard resin sheet 13 directly. There was a problem that the hitting sound became too loud (too quiet) when hit. Also, under the above conditions, the rubber is too soft, so if you hit from an oblique direction, the tip of the stick will bite into the hitting surface, and the tip of the stick will get caught on the hitting surface, impairing the feel of the acoustic cymbal. There was a problem that On the other hand, when the rubber sheet 14 is made of EPDM (0.70 mm to 1.5 mm) and the hardness (durometer type A) is set to 60 or 70, quietness is ensured and the hitting feel of the acoustic cymbal is faithfully reproduced. I was able to reproduce it. At the hardness of 70, the hitting feel was most faithfully reproduced. Therefore, the rubber sheet 14 should have an EPDM thickness of 0.70 mm or more and 1.5 mm or less, and a hardness of around 70, excluding a hardness of 50 or less, for example, a hardness of 55 or more and 75 or less. preferred.

<Arm connection member 15>
The arm connecting member 15 is a ring-shaped member having an upwardly bulging central portion, and is a member that is connected to an arm (not shown) to fix the electronic cymbal pad 1 main body to the arm. The arm connection member 15 is inserted through a hole formed in the center of the porous resin sheet 12 or the hard resin sheet 13 and fitted to the back surface of the cup portion 141 of the rubber sheet 14 . The arm connection member 15 is fixed to the base material 11 by screwing.

<Design parts 16>
The design part 16 is a fan-trapezoidal part for attaching a logo mark or the like, and is inserted through the notch 121 of the porous resin sheet 12 and the notch 131 of the hard resin sheet 13, is fitted into the hole 1421, and is attached to the bow. It is connected to the portion 142 without a step. The design part 16 is fixed to the base material 11 by screwing.

According to the present embodiment, as described above, the electronic cymbal is formed by stacking a plurality of types of materials having the optimum thickness, optimum hardness, and optimum thickness selected from the viewpoints of hitting feeling and quietness in the optimum order. Since the pad 1 was formed, it was possible to obtain sufficient quietness while reproducing the hitting feeling of an acoustic cymbal. In particular, the hard resin sheet 13 made it possible to reproduce the feeling of rebounding when lightly tapped. In addition, the porous resin sheet 12 could reproduce the feeling of the cymbal bending and rebounding when hit hard.

1 Electronic Cymbal Pad 11 Base Material 12 Porous Resin Sheet 121 Notch 13 Hard Resin Sheet 131 Notch 14 Rubber Sheet 141 Cup Part 142 Bow Part 1421 Hole 143 Edge Part 15 Arm Connection Member 15
16 Design parts

Claims (11)

A hard resin is a resin with a Rockwell hardness of R80 or higher in test method D785,
a base material;
a porous resin sheet covering the upper surface of the base material;
a hard resin sheet covering the upper surface of the porous resin sheet;
An electronic cymbal pad including a rubber sheet covering the upper surface of the hard resin sheet. The hard resin is HDPE, PVC, PC, PMMA, PP, or PET,
a substrate;
a porous resin sheet covering the upper surface of the base material;
a hard resin sheet covering the upper surface of the porous resin sheet;
including a rubber sheet covering the upper surface of the hard resin sheet
Electronic cymbal pad. The electronic cymbal pad according to claim 1 or 2 ,
An electronic cymbal pad, wherein the base material is ABS resin. The electronic cymbal pad according to any one of claims 1 to 3 ,
An electronic cymbal pad in which the porous resin sheet is an EPDM sponge. The electronic cymbal pad according to any one of claims 1 to 4,
An electronic cymbal pad in which the rubber sheet is EPDM rubber. The electronic cymbal pad according to claim 3 ,
The electronic cymbal pad, wherein the base material has a thickness of 3 mm or more and 5 mm or less. An electronic cymbal pad according to claim 4 ,
The electronic cymbal pad, wherein the porous resin sheet has a thickness of 3 mm or more and 5 mm or less. The electronic cymbal pad according to claim 2 ,
The hard resin sheet is PET,
The electronic cymbal pad, wherein the hard resin sheet has a thickness of 0.3 mm or more and 0.7 mm or less. An electronic cymbal pad according to claim 5,
The electronic cymbal pad, wherein the rubber sheet has a thickness of 0.7 mm or more and 1.5 mm or less. An electronic cymbal pad according to claim 7,
The electronic cymbal pad, wherein the porous resin sheet has a hardness of 25 or more and 45 or less in an Asker C-type sponge hardness tester. An electronic cymbal pad according to claim 9,
The electronic cymbal pad, wherein the rubber sheet has a durometer type A hardness of 55 or more and 75 or less.

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