JPH043358Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to an electronic cymbal that is inexpensive and capable of minimizing sensitivity unevenness depending on the hitting position.

[Conventional technology]

Electronic cymbals are devices in which the cymbal is struck with a stick, the vibrations are converted into electrical signals, and musical tones are produced from a speaker based on this electrical signal.
In terms of performance, first of all, it is required that the sensitivity be uniform no matter which part of the cymbal is struck, that the vibration of the cymbal caused by the strike be attenuated in a clean manner without being violent, and that the sound of the strike be small. Therefore, as for conventional electronic cymbals, for example,
As shown in Figures b and c, the cymbal 1 is constructed of a plastic flat plate with a thickness of about 10 mm, and a conventionally known pick-up device 2 made of a piezoelectric element etc. is embedded in this cymbal 1 (Figure a), 15 mm. A pick-up device 2 is buried in a wooden cymbal 3 having a thickness of about
Thin plastic plate 4 of about mm is pasted (b
(Fig.), a pick-up device 2 is disposed on a cymbal 5 formed into a substantially conical shape by a plastic plate having a thickness of about 2 to 3 mm, and the mounting portion of the pick-up device 2 is covered with a rubber plate 6. things are known.

However, when cymbal 1 in figure a becomes approximately 10 mm thick, it is very difficult to process it using injection molding or other methods.
For this reason, they are usually manufactured by cutting a thick plastic plate, but this type of processing is very time-consuming and increases manufacturing costs. The disadvantage was that it took a lot of time and effort to cut and glue the plastic plates. Furthermore, cymbals 1 and 3 in figures a and b are only formed into flat plate shapes due to their workability, and their shape is different from that of cymbals as natural musical instruments, which are formed into a substantially conical shape, so this poses a problem in playability. Ta. On the other hand, cymbal 5 in figure c is a rubber plate 6.
This has the advantage of reducing the impact sound and suppressing irregular vibrations, but on the other hand, it impairs the degree of freedom during normal cymbal performance and setting, where the impact surface is specified by the rubber plate 6 section. There was a drawback. [Summary of the invention] This invention was made in view of the above-mentioned points, and is made of a metal plate on which a pick-up device is disposed, and a flexible material such as a plastic material. By constructing a cymbal body that covers the cymbal body, it is possible to provide an electronic cymbal that fully satisfies the required performance, is easy to manufacture, and is inexpensive.

This invention will be described in detail below based on embodiments shown in the drawings.

〔Example〕

FIG. 2 is a sectional view showing an embodiment of the electronic cymbal according to this invention. In the figure, 10 is a metal plate formed into a substantially conical shape by press working;
Reference numeral 11 indicates a pick-up device fixed to an appropriate location on the inner surface (or outer surface) of the metal plate 10, and 12 indicates a cymbal body into which the metal plate 10 is inserted together with the pick-up device 11. A through hole 13 is formed in the center for attachment to a cymbal stand.

The metal plate 10 is formed of a metal plate with low sound vibration loss, such as an iron plate, a brass plate, a copper plate, etc.
The plate thickness is approximately 1.0mm.

The cymbal body 12 is made of plastic material, hard rubber, or the like, so that it has flexibility. In this case, the pickup device 1
1 is attached to the metal plate 10 into a mold,
The metal plate 10 and the cymbal body 12 are integrally molded by injecting and solidifying a thermoplastic resin (or synthetic rubber) such as ABS resin by insert molding.

Thus, according to the electronic cymbal A having such a configuration, the metal plate 10 and the cymbal body 12 can be molded simultaneously by insert molding, and can be molded in a short time, so that the manufacturing process and time can be shortened, and costs can be reduced. enable. In addition, the insert of the metal plate 10 can prevent the occurrence of sink marks due to shrinkage of the resin after molding, and a good appearance quality can be obtained.In addition, the cymbal body 12 can sufficiently withstand even large impact forces, preventing breakage. There is no.
As another embodiment, as shown in FIG. 3, the metal plate may be insert-molded and then the pick-up may be fixed afterwards. In addition, the distance from the impact point to the metal plate that is the vibration transmission member is always constant, and by using a metal material with low vibration loss for the metal plate, the pick-up device 11 can be used no matter which part of the cymbal body 12 is hit. Since the vibration of cymbal A is picked up well, there is very little sensitivity unevenness. Furthermore, since the cymbal body 12 has an appropriate thickness, resonance interference (due to the thin plate) does not occur, thereby preventing cymbal A from vibrating wildly and attenuating the vibration of cymbal A in a clean manner. Further, since the surface to be hit is made of a flexible material, the impact sound is small. In addition, cymbal A has a high degree of freedom in shape selection, and can easily be made into the same shape (approximately conical) as the cymbal of a natural instrument if necessary, so it can be used as an electronic cymbal with excellent playability. There are advantages.

[Effect of idea]

As explained above, the electronic cymbal according to the invention includes a metal plate, a pickup device disposed on the metal plate, and a cymbal body made of a flexible material such as plastic and covering the metal plate. Because it is composed of , it can be easily manufactured by insert molding, and it has very practical effects, such as reducing costs, minimizing unevenness in sensitivity depending on the impact position, excellent durability, and high degree of freedom in shape. It's large.

[Brief explanation of drawings]

Figures 1a, b, and c are perspective views showing an example of a conventional electronic cymbal, Figure 2 is a sectional view showing one embodiment of this invention, and Figure 3 is a schematic diagram showing another embodiment of this invention. FIG. 10...Metal plate, 11...Pickup device,
12...Cymbal body, A...Electronic cymbal.

Claims (1)

[Scope of utility model registration request] A cymbal body comprising a metal plate, a pick-up device disposed on the metal plate and converting cymbal vibration into an electrical signal, and a cymbal body made of a flexible material and covering the metal plate. Electronic cymbals.