JP2005274727A - Pad for percussion instrument - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pad for percussion instrument with which a player can obtain feeling of hitting equal to that to be obtained on an acoustic drum by eliminating unnatural feeling to be imparted to the player when the player hits the hitting face of the pad with a stick. <P>SOLUTION: A pad 10 is constituted by being equipped with; a surface layer part 11 which is formed roughly in a round shape when it is seen in a flat surface; an inner layer part 12 which is provided at the inner surface side of the surface layer part 11; and a plate-shaped supporting body 13 which supports the surface layer part 11 and the inner layer part 12. Moreover, a hitting face 15 which is to be hit with the stick is formed on the surface of the surface layer part 11 and the amount of the sinking of the face 15 is changed according to hitting force. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pad for a percussion instrument, and more particularly to a pad for a percussion instrument that can improve a feel when a hit surface is hit with a stick.

  In a known acoustic drum, a striking surface is formed by a sheet member made of a leather or a synthetic resin sheet stretched by a predetermined tension through a rim, and the striking surface is struck by a stick to vibrate. Is emitted.

  On the other hand, electronic drums have been distributed on the market as an electronic version of an acoustic drum, and this electronic drum is provided so that vibrations of a pad forming a striking surface can be converted into an electronic sound. The electronic drum is connected to an output device such as a speaker or a headphone via a predetermined electronic sound source, and can control the strength of electronic sound generated from the output device. Therefore, the electronic drum is often used for practice in a room or the like where a soundproof structure is not employed. For this reason, there is a demand for making the sound from the pad as quiet as possible by hitting the stick.

On the other hand, the electronic drum employs a structure in which the vibration of the pad is sensed by a sensor made of a piezoelectric element or the like and an electronic sound corresponding to the hitting force of the stick is output to the electronic sound source. Therefore, there is also a demand for the pad to be made of a material that can easily sense vibrations with a sensor.
In other words, the pad used for the electronic drum simultaneously satisfies the demand for noise reduction and the demand for the vibration to be easily detected by the sensor, so that the rubber surface layer forming the striking surface is made of an iron plate, an MDF plate, or the like. (See Patent Document 1).

JP-A-9-244633

However, the pad used for the electronic drum described above and the acoustic drum have a different amount of subsidence when hitting the hitting surface with a stick, and thus the hit feeling transmitted to the performer is different, which makes the player feel uncomfortable. There is an inconvenience of causing it.
Specifically, when the striking force of the stick is increased, the acoustic drum is deformed so that the striking surface sinks greatly. Compared to this, in the pad using the rubber surface layer material, the surface layer portion is relatively thick and is supported from the lower surface via the plate-like support, so that the amount of sinking of the hitting surface is reduced. There is a difference.
In addition, when the impact force of the stick is the same, the amount of sinking of the striking surface changes according to the distance from the rim in the acoustic drum, whereas the pad of the rubber surface layer material changes the striking surface. There is also a difference that the amount of subsidence of the striking surface hardly changes regardless of which region is hit.

[Object of invention]
The present invention has been devised by paying attention to such inconveniences, and its purpose is to eliminate the uncomfortable feeling given to the performer through the stick when hitting the hitting surface, An object of the present invention is to provide a pad for a percussion instrument that can obtain an equivalent percussion feel.

In order to achieve the above object, the present invention provides a percussion instrument pad including a surface layer portion that forms a striking surface to be struck by a stick, and a support that supports the surface layer portion.
A configuration is adopted in which an inner layer portion is provided on the inner surface side of the surface layer portion to change a sinking amount of the striking surface according to the striking force.

  In the present invention, it is preferable to employ a configuration in which the hardness of the inner layer portion is set smaller than the hardness of the surface layer portion.

  Further, when the in-plane outer peripheral side region and the in-plane central region of the striking surface are struck with a stick with the same striking force, the surface layer portion and / or the inner layer portion are more in the in-plane central region than the in-plane outer peripheral side region. It is possible to adopt a configuration in which the sinking amount of the hitting surface is increased.

  Furthermore, the structure that the inner layer part corresponding to the said outer peripheral side area | region is equipped with the area | region which becomes gradually thin toward the outer periphery of a striking surface is also employ | adopted preferably.

  Further, the hardness of the surface layer portion and / or the inner layer portion may be configured such that the in-plane outer peripheral region is set larger than the in-plane central region of the striking surface.

Further, the present invention is a percussion instrument pad having a surface layer portion that forms a striking surface to be hit by a stick,
A configuration is also adopted in which the hardness of the surface layer portion is set to be larger in the in-plane outer peripheral region than in the in-plane central region of the striking surface.

  According to the present invention, when the striking force with the stick is increased, the inner layer portion can secure the amount of sinking of the striking surface according to the striking force. As a result, when the surface layer portion is made of rubber, it is possible to bring the hit feeling closer to the acoustic drum while maintaining quietness and ease of vibration detection.

  In addition, since the hardness of the inner layer portion is set smaller than the surface layer portion, for example, if the striking force is substantially maximized, the impact applied to the player's hand due to the elasticity of the inner layer portion can be reduced, and the maximum When the striking force is about half or less of the limit striking force, it is possible to set so as to obtain a hit feeling that the stick bounces due to the elasticity of the surface layer portion.

  Further, since the amount of subsidence of the hitting surface is greater in the in-plane center region than in the in-plane outer peripheral side region of the hitting surface, the hit feeling given to the player is changed depending on the hitting position of the hitting surface and is closer to the acoustic drum. A hit feeling can be realized.

  Further, by gradually reducing the thickness of the inner layer portion toward the outer periphery of the striking surface, or by increasing the hardness of the surface layer portion and / or the inner layer portion of the outer peripheral side region of the striking surface from the central region, It is possible to give a soft feel at the center area of the striking surface and a hard feel at the outer peripheral area.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, “rubber hardness” is a hardness measured using a hardness meter of JIS K 6253, and “sponge rubber hardness” is a hardness measured using a hardness meter of SRIS 0101.

[First Embodiment]
FIG. 1 is a schematic plan view of a percussion instrument pad according to the first embodiment, and FIG. 2 is a cross-sectional view taken along line AA of FIG. In these drawings, a percussion instrument pad 10 (hereinafter referred to as “pad”) is provided on a surface layer portion 11 formed in a substantially circular shape in plan view, and on the inner surface side (the lower surface side in FIG. 2) of the surface layer portion 11. The inner layer portion 12 and a plate-like support 13 that supports the surface layer portion 11 and the inner layer portion 12 from the lower side in FIG. 2 are configured.

  The surface layer portion 11 is not particularly limited, but is made of natural or synthetic rubber, or a so-called rubber in which they are mixed, and a striking surface 15 hit by a stick (not shown) is a surface (upper surface in FIG. 2). Is formed. The rubber hardness of the surface layer portion 11 is set to about 45 °. Moreover, the thickness of the surface layer part 11 is set to about 6 mm.

  The inner layer portion 12 is formed of an elastic sponge made of urethane foam or the like, and is provided in substantially the same plane shape as the surface layer portion 11 and is laminated between the surface layer portion 11 and the support 13 with an adhesive or the like. Has been. The hardness of the inner layer portion 12 is set smaller than the hardness of the surface layer portion 11. Specifically, the sponge rubber hardness of the inner layer portion 12 is set to about 35 ± 5 °. Moreover, the thickness of the inner layer part 12 is set to about 10 mm.

  The support 13 is made of an iron plate having a thickness of about 1.6 mm, an MDF plate having a thickness of about 9 mm, a plywood, a fiber board, and the like. The support 13 is formed in substantially the same planar shape as the surface layer portion 11 and the inner layer portion 12. It is glued to the underside. A sensor board 16 made of a resin material such as foamed vinyl chloride is fixed to the lower surface of the support 13 via an adhesive or the like, and a sensor 17 made of a plate-like piezoelectric element or the like is provided on the lower surface of the sensor board 16. It has been. The sensor 17 detects vibration transmitted to the surface layer portion 11, the inner layer portion 12, the support 13 and the sensor board 16 when the hitting surface 15 is hit with a stick, and this detection signal is transmitted to a predetermined electronic device via an electric wire (not shown). Input to the sound source.

  In the above configuration, the performance using the pad 10 is performed by hitting the hitting surface 15 with a stick. At this time, since the surface layer portion 11 and the inner layer portion 12 are set to the above-described hardness, they are elastically deformed so as to sink the striking surface 15 according to the striking force of the stick. That is, when the player strikes with a substantially maximum striking force (hereinafter referred to as “strong striking”), the inner layer portion 12 is greatly compressed, the amount of subsidence of the striking surface 15 increases, and the hand holding the stick The shock to is eased. On the other hand, when striking with a striking force less than half that of the strong striking (hereinafter referred to as “weak striking”), the surface layer portion 11 and the inner layer so that the amount of subsidence of the striking surface 15 is smaller than when striking a strong striking. The part 12 is compressed, and a hard hit feeling of the surface layer part 11 is given to the hand holding the stick.

  Therefore, according to the first embodiment, since the surface layer portion 11 and the inner layer portion 12 having different hardnesses are laminated on the support 13, the amount of subsidence of the striking surface 15 is changed between strong hitting and weak hitting. It is possible to give a hit feeling mainly caused by the elastic deformation of the inner layer portion 12 at the time of strong hitting, and to give hit feeling mainly caused by the elastic deformation of the surface layer portion 11 at the time of weak hitting. Become. As a result, a hitting feeling close to that of an acoustic drum is achieved, and an effect of improving the sense of incongruity between playing with the pad 10 and playing the acoustic drum is obtained.

  Next, embodiments other than the first embodiment of the present invention will be described. In the following description, the same or equivalent components as those in the first embodiment are denoted by the same reference numerals as necessary, and the description is omitted or simplified.

[Second Embodiment]
FIG. 3 is a schematic cross-sectional view of the pad 10 according to the second embodiment of the present invention. In the second embodiment, the hardness of the surface layer portion 11 is changed between the in-plane center region 15A of the striking surface 15 and the in-plane outer peripheral side region 15B.
That is, the hardness of the surface layer portion 11 is set to be larger in the in-plane outer peripheral region 15B than in the in-plane center region 15A, and specifically, the rubber hardness of the surface layer portion 11 located in the in-plane center region 15A is set. The rubber hardness of the surface layer portion 11 located in the in-plane outer peripheral side region 15B is set to about 45 ° and about 60 °. Here, as indicated by a two-dot chain line in FIG. 1, the boundary between the in-plane center region 15A and the in-plane outer peripheral side region 15B is located along a circle that is substantially the same center as the center position of the striking surface 15. The diameter of the circle is set to be substantially the same as the radius of the hitting surface 15.

  Therefore, according to the second embodiment, since the in-plane central region 15A is softer than the in-plane outer peripheral region 15B in the surface layer portion 11, the in-plane outer peripheral region 15B and the in-plane central region 15A are When hitting with the same hitting force, the in-plane center region 15B can increase the sinking amount of the hitting surface 15 than the in-plane outer peripheral side region 15A. Thereby, while giving a soft hitting feeling in the in-plane center region 15A, a hard hitting feeling can be given in the in-plane outer peripheral side region 15A, and the hitting feeling differs depending on the hitting position as in an acoustic drum. It becomes possible to do.

[Third Embodiment]
FIG. 4 is a schematic cross-sectional view of the pad 10 according to the third embodiment of the present invention. In the third embodiment, the hardness of the inner layer portion 12 is changed between the in-plane center region 15A of the striking surface 15 and the in-plane outer peripheral side region 15B. That is, the sponge rubber hardness of the inner layer portion 12 is set to be larger in the in-plane outer peripheral side region 15B than in the in-plane central region 15A, and this also provides the same operation and effect as in the second embodiment. It becomes possible.

[Fourth Embodiment]
FIG. 5 shows a schematic cross-sectional view of a pad 10 according to a fourth embodiment of the present invention. In the fourth embodiment, the inner layer portion 12 is partially thinned.
Specifically, the inner layer portion 12 corresponding to the in-plane outer peripheral side region 15 </ b> B is formed such that the lower surface in FIG. 5 is an inclined surface and gradually becomes thinner toward the outer periphery of the striking surface 15. Further, the support 13 in the in-plane outer peripheral side region 15B is formed so as to gradually become thicker toward the outer periphery of the striking surface 15 in accordance with the thickness change of the inner layer portion 12.

  Therefore, according to the fourth embodiment, the elastic force of the inner layer portion 12 is reduced toward the outer periphery of the hitting surface 15, and the hitting surface is formed from the boundary between the in-plane central region 15A and the in-plane outer peripheral side region 15B. The amount of sinking described above toward the outer periphery of 15 can be gradually reduced. In other words, the hitting feeling imparted to the stick from the outer periphery of the hitting surface 15 can be gradually changed in an analog manner, and can be made closer to the hitting feeling of the acoustic drum.

[Fifth Embodiment]
FIG. 6 shows a schematic cross-sectional view of a pad 10 according to a fifth embodiment of the present invention. The inner layer portion 12 of the fifth embodiment has a shape obtained by inverting the vertical direction of the inner layer portion 12 of the fourth embodiment.
That is, the inner layer portion 12 corresponding to the in-plane outer peripheral side region 15 </ b> B is formed such that the upper surface in FIG. 6 is an inclined surface and gradually becomes thinner toward the outer periphery of the striking surface 15. Further, the surface layer portion 11 of the in-plane outer peripheral side region 15 </ b> B is formed so as to gradually become thicker toward the outer periphery of the striking surface 15 in accordance with the thickness change of the inner layer portion 12.

  Therefore, the same effect as that of the fourth embodiment can be obtained also by the fifth embodiment.

The best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this.
That is, the present invention has been particularly shown and described with respect to particular embodiments, but is not limited to the embodiments described above without departing from the scope and spirit of the present invention. Various modifications can be made by those skilled in the art in terms of position, material or direction, and other detailed configurations.

For example, the planar shape of the hitting surface 15 can be changed in various ways, and may be, for example, a substantially rectangular shape, a substantially elliptical shape, or a substantially polygonal shape. In this case, the boundary position between the in-plane center region 15A and the in-plane outer peripheral side region 15B is a trajectory connecting the in-plane center position of the striking surface 15 or a substantially middle point of the distance from the centroid to the outer periphery.
In the above embodiments, the single pad 10 is shown and described, but a plurality of pads 10 may be arranged in the same manner as each drum of the acoustic drum set. At this time, by adjusting the hardness of the surface layer portion 11 and the inner layer portion 12 in each pad 10 as appropriate, the pad 10 corresponding to the floor tom softens the feel of hitting than the pad 10 corresponding to the snare drum. It is possible to give a good performance feeling like an acoustic drum.
Further, the sensor board 16 and the sensor 17 may be omitted, and the pad 10 used mainly for practice may be used.
Further, as shown in FIG. 7, the inner layer portion 12 of the second embodiment may be omitted, and this also changes the hit feeling between the in-plane center region 15A and the in-plane outer peripheral side region 15B. it can.
Further, the surface layer portion 11 and the inner layer portion 12 are not limited to the above-described configuration. For example, the inner layer portion 12 is set to have a lower density than the surface layer portion 11 using the same material, or a plurality of inner surface side portions in the surface layer portion 11 are arranged. It is good also as a structure which changes the amount of sinking of the striking surface 15 according to a striking force by forming so that a location may be partially scraped and forming the inner layer part 12. FIG.

  The present invention can be mainly used for an electronic drum set that electronically converts vibrations of the surface layer portion and outputs a striking sound.

The schematic plan view of the pad for percussion instruments concerning a 1st embodiment. Sectional drawing in alignment with the AA of FIG. Sectional drawing similar to FIG. 2 of the pad for percussion instruments which concerns on 2nd Embodiment. Sectional drawing similar to FIG. 2 of the pad for percussion instruments concerning 3rd Embodiment. Sectional drawing similar to FIG. 2 of the pad for percussion instruments concerning 4th Embodiment. Sectional drawing similar to FIG. 2 of the pad for percussion instruments which concerns on 5th Embodiment. Sectional drawing similar to FIG. 2 of the pad for percussion instruments which concerns on a modification.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Pad (pad for percussion instrument), 11 ... Surface layer part, 12 ... Inner layer part, 13 ... Supporting body, 15 ... Hitting surface, 15A ... In-plane center area, 15B ..In-plane outer peripheral area

Claims (6)

In a pad for a percussion instrument comprising a surface layer part that forms a striking surface struck by a stick, and a support that supports the surface layer part,
A pad for a percussion instrument, wherein an inner layer portion is provided on the inner surface side of the surface layer portion to change a sinking amount of the hitting surface in accordance with a hitting force.   The percussion instrument pad according to claim 1, wherein the inner layer portion is set to have a hardness smaller than that of the surface layer portion.   When the in-plane outer peripheral side region and the in-plane central region of the hitting surface are struck with a stick with the same striking force, the surface layer portion and / or the inner layer portion is more in the in-plane central region than in the in-plane outer peripheral side region. The percussion instrument pad according to claim 1, wherein a sinking amount of the hitting surface is increased.   4. The percussion instrument pad according to claim 3, wherein the inner layer portion corresponding to the outer peripheral side region includes a region that gradually becomes thinner toward the outer periphery of the hitting surface.   The percussion instrument pad according to claim 3 or 4, wherein the hardness of the surface layer portion and / or the inner layer portion is set to be larger in the in-plane outer peripheral region than in the in-plane central region of the hit surface. In a percussion instrument pad having a surface layer portion that forms a striking surface to be hit by a stick,
The pad for a percussion instrument is characterized in that the hardness of the surface layer portion is set larger in the in-plane outer peripheral region than in the in-plane central region of the hit surface.

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