WO2022024205A1

WO2022024205A1 - Cymbal

Info

Publication number: WO2022024205A1
Application number: PCT/JP2020/028799
Authority: WO
Inventors: 眞細川
Original assignee: ヤマハ株式会社
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2022-02-03
Also published as: JPWO2022024205A1; JP7388559B2

Abstract

A cymbal (1) comprises: at least one hole formation region (2) which is formed annularly around a center (C) of the cymbal, and has a plurality of through-holes (21) arranged in the circumferential direction of the cymbal while penetrating the cymbal in the thickness direction thereof; and at least one hole-less region (3) which is formed annularly around the center of the cymbal and in which no through-hole is formed. Each through-hole has a first side and a second side respectively extending in the radial direction of the cymbal.

Description

cymbal

This invention relates to cymbals.

Patent Documents 1 to 3 disclose cymbals having a plurality of through holes. With such a cymbal, the volume generated by the impact can be reduced as compared with a normal cymbal without a through hole.

Japanese Unexamined Patent Publication No. 2010-072510 U.S. Pat. No. 9,990,909 U.S. Pat. No. 10,460,708

When the number of through holes formed in the cymbal is increased to increase the opening area, the volume can be significantly reduced compared to a normal cymbal without through holes, but the characteristics of the generated sound are It will be very different. On the other hand, when the number of through holes in the cymbal is reduced to reduce the opening area, the characteristics of the generated sound can be made closer to that of a normal cymbal, but the generated volume becomes closer to that of a normal cymbal.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cymbal capable of bringing the characteristics of the generated sound closer to that of a normal cymbal while suppressing the generated volume to a low level.

One aspect of the present invention is a hole forming region formed in an annular shape centered on the center of the cymbal and having a plurality of through holes penetrating in the thickness direction of the cymbal and lining up in the circumferential direction of the cymbal, and the center of the cymbal. It is provided with at least one non-hole region formed in an annular shape at the center and not formed with the through hole, and the through hole has a first side and a second side extending in the radial direction of the cymbal, respectively. It is a cymbal.

According to the present invention, it is possible to provide a cymbal that can bring the characteristics of the generated sound closer to that of a normal cymbal while suppressing the generated volume to a low level.

It is a top view which shows the cymbal which concerns on one Embodiment of this invention. It is sectional drawing which shows the outline of the cymbal of FIG. It is an enlarged plan view which shows the main part of the cymbal of FIG. 1 schematically. It is an enlarged plan view schematically showing the first example of the through hole of FIGS. 1 and 3. It is an enlarged plan view which shows the 2nd example of the through hole of FIGS. 1 and 3 schematically. It is a graph which shows the frequency characteristic of the cymbal of FIG. 1 and the cymbal of the first comparative example. It is a figure which shows an example of the stress generated in a normal cymbal. It is a graph which shows the frequency characteristic of the cymbal of FIG. 1 and the cymbal of the second comparative example.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 8.
As shown in FIGS. 1 and 2, the cymbal 1 according to the present embodiment is a percussion instrument that is formed in a thin disk shape and generates a radiant sound when hit. The cymbal 1 of the present embodiment is made of a metal material (for example, an alloy of copper, tin, silver, etc.). The cymbal 1 is not limited to a metal material, and may be formed of any material such as a highly rigid resin material (for example, polypropylene (PP) or polyamide (PA)).

The cymbal 1 of the present embodiment has a cup portion 11 and a bow portion 12. The cup portion 11 is formed in a bowl shape or a hemispherical shape having a large curvature. The bow portion 12 is integrally formed on the outer peripheral edge of the cup portion 11 and is formed in a bowl shape or a disk shape having a smaller curvature than the cup portion 11. The outer peripheral edge of the bow portion 12 constitutes the edge 13 of the cymbal 1. Both the cup portion 11 and the bow portion 12 are formed so as to bulge toward one side (upper side in FIG. 2) of the cymbal 1 in the thickness direction.

A hole 14 penetrating the cymbal 1 in the thickness direction (direction orthogonal to the paper surface in FIG. 1) is formed in the portion of the cymbal 1 at the center C (center C of the cup portion 11). By passing a support (not shown) through the hole 14, the cymbal 1 can be supported by the support.

As shown in FIG. 3, the cymbal 1 according to the present embodiment includes a hole forming region 2 and a holeless region 3.

The hole forming region 2 and the holeless region 3 are each formed in an annular shape centered on the center C of the cymbal 1. The hole forming region 2 and the holeless region 3 are located adjacent to each other in the radial direction of the cymbal 1. The cymbal 1 of the present embodiment has a plurality of hole forming regions 2 and a plurality of holeless regions 3. The hole forming region 2 and the holeless region 3 are alternately arranged in the radial direction of the cymbal 1.

It is preferable that the difference between the width dimension W2 of the hole forming region 2 in the radial direction of the cymbal and the width dimension W3 of the holeless region 3 adjacent to the hole forming region 2 is small. The width dimension W2 of the hole forming region 2 is preferably 0.5 times or more and twice or less the width dimension W3 of the holeless region 3 adjacent to the hole forming region 2, and is preferably the width dimension W3 of the holeless region 3. It is more preferable that it is equivalent to. The width dimensions W2 and W3 of the hole forming region 2 and the holeless region 3 may be, for example, about 10 mm.

In the hole forming region 2, a plurality of through holes 21 penetrating in the thickness direction of the cymbal 1 (direction orthogonal to the paper surface in FIG. 3) are formed. The plurality of through holes 21 are arranged in a row in the circumferential direction of the cymbal 1 in the hole forming region 2. On the other hand, the through hole 21 is not formed in the holeless region 3.

As shown in FIGS. 4 and 5, each through hole 21 has a first side 211 and a second side 212 that form the contour of the through hole 21 in a plan view seen from the thickness direction of the cymbal 1. The first side 211 and the second side 212 are each formed in a linear shape extending in the radial direction of the cymbal 1, and are located at intervals in the circumferential direction of the cymbal 1. Further, in each through hole 21, the virtual first straight line EL1 extended from the first side 211 and the virtual second straight line EL2 extended from the second side 212 intersect at the center C of the cymbal 1. As a result, the first side 211 and the second side 212 of each through hole 21 are inclined to each other. Further, the lengths of the first side 211 and the second side 212 are equal to each other. Further, both ends of the first side 211 and both ends of the second side 212 are arranged at the same positions in the radial direction of the cymbal 1.

Each through hole 21 has a third side 213 and a fourth side 214 that form the contour of the through hole 21 together with the first side 211 and the second side 212 by connecting the first side 211 and the second side 212. The third side 213 connects the inner ends of the first side 211 and the second side 212 in the radial direction of the cymbal 1. The third side 213 substantially constitutes the inner edge of the hole forming region 2. The fourth side 214 connects the outer ends of the first side 211 and the second side 212 in the radial direction of the cymbal 1. The fourth side 214 substantially constitutes the outer edge of the hole forming region 2.

The third side 213 and the fourth side 214 may be formed linearly, for example, as shown in FIG. In the through hole 21 illustrated in FIG. 4, the linear third side 213 and the fourth side 214 are parallel to each other. Further, the third side 213 and the fourth side 214 are orthogonal to the radial direction of the cymbal 1 in the middle of the length direction thereof. The through hole 21 illustrated in FIG. 4 is formed in a trapezoidal shape in a plan view.

The third side 213 and the fourth side 214 may be formed in an arc shape centered on the center C of the cymbal 1, as shown in FIG. 5, for example. In the through hole 21 illustrated in FIG. 5, the arcuate third side 213 and the fourth side 214 are parallel to each other. The through hole 21 illustrated in FIG. 5 is formed in an annular sector shape in a plan view.

In the hole forming region 2, the area of the region 22 (non-opening region 22; the region indicated by diagonal hatching in FIGS. 4 and 5) between the through holes 21 adjacent to each other in the circumferential direction of the cymbal 1 is larger than the area of the through holes 21. Adjacent through holes 21 are located close to each other so as to be sufficiently small. The area of the non-opening region 22 is preferably, for example, 30% or less of the area of the through hole 21, and more preferably 10% or less of the area of the through hole 21.

The through hole 21 constituting the hole forming region 2 may be formed in the entire region of the cymbal 1 or may be formed only in a partial region of the cymbal 1. In the cymbal 1 of the present embodiment, as shown in FIG. 1, the through hole 21 is formed in a region of the cup portion 11 excluding the region near the hole 14 and a region of the bow portion 12 excluding the region near the edge 13. It is formed. Further, the size of the through hole 21B formed in the region on the inner peripheral side close to the cup portion 11 in the bow portion 12 is the through hole 21A formed in the cup portion 11 and the cup portion 11 in the bow portion 12. It is smaller than the size of the through hole 21C formed in the region on the outer peripheral side away from.

According to the cymbal 1 of the present embodiment, a plurality of through holes 21 are arranged in the circumferential direction of the cymbal 1 in the annular hole forming region 2. Further, the first side 211 and the second side 212 forming the contour of each through hole 21 extend in the radial direction of the cymbal 1. Therefore, in the hole forming region 2, the distance between the through holes 21 adjacent to each other in the circumferential direction can be narrowed, and the area between the through holes 21 (the area of the non-opening region 22) can be reduced. That is, the ratio of the opening area in the hole forming region 2 can be improved. As a result, the volume generated when the cymbal 1 is hit can be suppressed to a lower level.

The point that the volume generated in the cymbal 1 of the present embodiment is reduced will be described with reference to FIG.
FIG. 6 shows the frequency characteristics of the vibration of the cymbal 1 of the present embodiment (the cymbal 1 of the embodiment) and the cymbal of the first comparative example illustrated in FIG. The cymbal of the first comparative example is a normal cymbal without a through hole 21. The shape, thickness, and the like of the cymbal of the first comparative example are the same as those of the cymbal 1 of the embodiment.

According to the graph of FIG. 6, the sound pressure of the cymbal 1 of the embodiment is much lower than the sound pressure of the cymbal of the first comparative example in a wide frequency band (generally in the range of 200 to 1500 Hz). For example, the maximum sound pressure in the cymbal 1 of the embodiment is about 3% of the maximum sound pressure in the cymbal of the first comparative example. That is, according to the graph of FIG. 6, it can be seen that the volume generated in the cymbal 1 of the embodiment is much smaller than the volume generated in the cymbal of the first comparative example.

Further, the cymbal 1 of the present embodiment has an annular hole-less region 3 having no through hole 21 in addition to the annular hole forming region 2 having a plurality of through holes 21. As a result, the characteristics of the sound generated in the cymbal 1 having the plurality of through holes 21 can be brought close to those of a normal cymbal without the through holes 21. Hereinafter, this point will be described with reference to FIGS. 7 and 8.

As shown in FIG. 7, when a normal cymbal is hit, a plurality of annular stresses S may be generated concentrically around the center C of the cymbal. The inventor has clarified that when an annular stress S is generated, the characteristic sound of a normal cymbal is efficiently generated.
Therefore, in the cymbal 1 of the present embodiment, the generation of the above-mentioned annular stress S is hindered in the annular hole forming region 2 in which the plurality of through holes 21 are formed, but in the annular holeless region 3, the circle is formed. An annular stress S can be generated. As a result, in the holeless region 3, it is possible to generate a sound having the same or similar characteristics as that of a normal cymbal. Therefore, even a cymbal 1 having a plurality of through holes 21 can generate a sound similar to that of a normal cymbal without the through holes 21.

FIG. 8 shows the frequency characteristics of the vibration of the cymbal 1 of the present embodiment (the cymbal 1 of the embodiment) and the cymbal of the second comparative example illustrated in FIG. The cymbal of the second comparative example is a cymbal that forms a large number of through holes 21 like the cymbal 1 of the embodiment, but does not have an annular holeless region 3. The shape, thickness, and the like of the cymbal of the second comparative example are the same as those of the cymbal 1 of the embodiment.

According to the graph of FIG. 8, in the cymbal of the second comparative example, the sound pressure of the peak frequency (higher-order peak frequency) in the relatively high frequency band (generally in the range of 800 to 1300 Hz) is the sound pressure of the other frequency band. Greater than. On the other hand, in the cymbal 1 of the embodiment, the sound pressure of the peak frequency (low-order peak frequency) in the relatively low frequency band (generally in the range of 300 to 500 Hz) is larger than the sound pressure of the other frequency bands. That is, the frequency characteristics of vibration are significantly different between the cymbal 1 of the embodiment and the cymbal 1 of the second comparative example.

Then, in the cymbal of the first comparative example shown in FIG. 6, the peak frequency (low-order peak) in a relatively low frequency band (generally in the range of 300 to 500 Hz) is similar to the cymbal 1 of the embodiment shown in FIG. The sound pressure of frequency) is higher than the sound pressure of other frequency bands. That is, it can be seen that the cymbal 1 of the embodiment has a vibration frequency characteristic closer to that of the cymbal of the first comparative example (ordinary cymbal) than that of the cymbal of the second comparative example. Therefore, the cymbal 1 of the embodiment can generate a sound closer to that of a normal cymbal.

Further, in the cymbal 1 of the present embodiment, the first straight line EL1 extended from the first side 211 of each through hole 21 and the second straight line EL2 extended from the second side 212 intersect at the center C of the cymbal 1. The first side 211 and the second side 212 are tilted from each other. As a result, the distance between the through holes 21 adjacent to each other in the circumferential direction in the hole forming region 2 is further narrowed as compared with the case where the first side 211 and the second side 212 are parallel to each other, and the space between the through holes 21 is further reduced. Area (area of non-opening region 22) can be further reduced.

Further, in the cymbal 1 of the present embodiment, the hole forming region 2 and the holeless region 3 are alternately arranged in the radial direction of the cymbal 1. Therefore, the hole forming region 2 (or the holeless region 3) is unevenly arranged outside or inside the cymbal 1 in the radial direction as compared with the case where there is only one hole forming region 2 and one holeless region 3. Can be suppressed or prevented. That is, the bias of the hole forming region 2 (or the holeless region 3) in the cymbal 1 can be suppressed to a small value. As a result, in the cymbal 1 in which the through hole 21 is formed, the volume generated when the cymbal 1 is hit can be suppressed to a small level while producing a sound closer to that of a normal cymbal.

Further, in the cymbal 1 of the present embodiment, the third side 213 and the fourth side 214 of the through hole 21 formed in the hole forming region 2 form a substantial boundary between the hole forming region 2 and the holeless region 3. It is composed. Therefore, as shown in FIG. 5, when the third side 213 and the fourth side 214 are formed in an arc shape, the non-hole region 3 is a polygonal ring (that is, a ring with an angle) that approximates the ring. ), But can be formed in an annular shape with no corners. That is, the holeless region 3 can be formed into an annular shape with higher accuracy. As a result, in the cymbal 1 in which the through hole 21 is formed, a sound closer to that of a normal cymbal can be produced.

Although the present invention has been described in detail above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

The cymbal of the present invention may include at least one hole forming region 2 and one holeless region 3. When the number of the hole forming region 2 and the holeless region 3 in the cymbal is one, the holeless region 3 may be arranged inside the hole forming region 2 in the radial direction of the cymbal, or the hole forming region 2 may be arranged. The no-hole region 3 may be arranged on the outside.

In the cymbal of the present invention, the first side 211 and the second side 212 of the through hole 21 extending in the radial direction of the cymbal may be parallel to each other, for example. That is, the through hole 21 formed in the cymbal 1 may be formed in a rectangular shape or a square shape, for example. Further, the through hole 21 may be formed, for example, in a shape in which the first side 211 and the second side 212 parallel to each other are connected by the arcuate third side 213 and the fourth side 214.

In the cymbal of the present invention, the bow portion 12 may be complicatedly curved in the thickness direction, for example, like a China cymbal. Further, the cymbal of the present invention does not have to have the cup portion 11.

1 ... cymbal, 2 ... hole forming region, 3 ... holeless region, 21 ... through hole, 211 ... first side, 212 ... second side, 213 ... third side, 214 ... fourth side, EL1 ... first straight line, EL2 ... Second straight line

Claims

A hole forming region formed in an annular shape centered on the center of the cymbal and having a plurality of through holes penetrating in the thickness direction of the cymbal and lining up in the circumferential direction of the cymbal.
It is provided with at least one non-hole region formed in an annular shape centered on the center of the cymbal and not formed with the through hole.
The through hole is a cymbal having a first side and a second side extending in the radial direction of the cymbal, respectively.
When the virtual first straight line extended from the first side and the virtual second straight line extended from the second side intersect at the center of the cymbal, the first side and the second side are tilted from each other. The cymbal according to claim 1.
The cymbal according to claim 1 or 2, wherein the through hole has two linear third and fourth sides connecting the first side and the second side.
The through hole has two third and fourth sides connecting the first side and the second side.
The cymbal according to claim 1 or 2, wherein the third side and the fourth side are each formed in an arc shape centered on the center of the cymbal.
The cymbal according to any one of claims 1 to 4, wherein the hole forming region and the holeless region are alternately arranged in the radial direction.