JP2015230362A - Striking pad - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve striking feeling and quietness by securing a large striking stroke.SOLUTION: In a striking pad 10, a hard member 14 such as an iron plate is included as a core in a soft part 19 such as an elastic rubber material, to thereby constitute a pad part 11. The pad part 11 is connected to a rim part 13 via a connection part 12. In a non-striking state, a first connection position P1 of the connection part 12 to the pad part 11 in the striking direction is on the opposite side in the striking direction than a second connection position P2 of the connection part 12 to the rim part 13.

Description

  The present invention is applied to a percussion instrument and the like, and relates to a striking pad including a pad portion having a striking surface to be hit.

  A hitting pad applied to a percussion instrument or the like is supported by a support part such as a frame or a trunk, and a hitting surface of the pad part is hit by a hitting member. As a prior art, as shown in Patent Document 1 below, a configuration in which a pad portion is supported by a support portion via a thin portion is known.

  5 (a) and 5 (b) are cross-sectional views that model a conventional support structure for the pad portion, and show a non-striking state and a striking state, respectively.

  The hitting pad 100 is formed by connecting a pad portion 101 in which a soft member such as a rubber material includes a hard member 104 such as an iron plate as a core material to a rim portion 103 via a thin portion 102. Then, the rim portion 103 is fixed to the case 105 by fitting or the like. The striking surface 101a which is the surface of the pad portion 101 is hit with a hitting member such as a stick.

JP 2004-287356 A

  In the conventional hitting pad 100, when hit, the entire pad portion 101 can sink in the hitting direction due to the elasticity of the thin portion 102 (FIG. 5B). Due to the elasticity of the thin-walled portion 102, it can be expected that the impact on the hand at the time of hitting and some of the collision sound will be alleviated. However, the elastic deformation of the thin wall portion 102 at the time of hitting is mainly simple extension like a diaphragm, so that it is insufficient to ensure a large displacement of the pad portion 101 in the hitting direction. Since the striking stroke is not sufficiently large, the impression that “the rubber surface is hard” still remains as the striking feel of the performance, and the collision sound is not so small.

  The present invention has been made to solve the above-described problems of the prior art, and an object of the present invention is to provide a striking pad that can ensure a large striking stroke and improve the feel and silence.

  In order to achieve the above object, the striking pad according to claim 1 of the present invention has a pad portion (11) having a striking surface (11a) that is struck with the direction pushed by the striking member as the striking direction, and has elasticity. A connection part (12) for connecting the pad part and the support part (13) to support the pad part on the support part, and in the non-striking state, the pad part in the striking direction with respect to the pad part The first connection position (P1) of the connection part is closer to the opposite side of the striking direction than the second connection position (P2) of the connection part to the support part.

  In addition, the code | symbol in the said parenthesis is an illustration.

  According to claim 1 of the present invention, a large striking stroke can be secured.

  According to claim 2, it is possible to ensure a large striking stroke. According to the third aspect, it is possible to avoid abrupt deformation such as buckling and to cause smooth bending deformation. According to the fourth aspect, the ease of deformation of the connecting portion can be ensured in each of the weak hit and the strong hit, and the hit feeling can be improved. According to the fifth aspect, it is possible to improve the hit feeling by gradually increasing the deformation according to the hitting force.

It is a typical sectional view of a hitting pad concerning one embodiment of the present invention. It is a mimetic diagram of a hitting pad concerning the 1st-the 3rd modification. It is a mimetic diagram of a hitting pad concerning the 4th-the 6th modification. It is a top view in the non-striking state of the striking pad concerning the 7th and 8th modification. It is sectional drawing of the non-striking state and the striking state which modeled the support structure of the conventional pad part.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  Fig.1 (a) is typical sectional drawing of the striking pad which concerns on one embodiment of this invention, and has shown the non-striking state. The striking pad of the present invention is assumed to be applied to an electronic percussion instrument, but is not limited thereto, and may be configured as a striking pad dedicated to practice, for example.

  The hitting pad 10 includes a pad portion 11, a connecting portion 12, a rim portion 13, and a case 15. The case 15 is placed on the floor surface or supported by a stand (not shown) with respect to the floor surface. The pad portion 11 has a soft portion 19 and a hard member 14. The soft portion 19 includes a hard member 14 such as an iron plate as a core material. The soft portion 19 is softer than the hard member 14 and is integrally formed of a soft material such as a rubber material having elasticity together with the connection portion 12 and the rim portion 13. The hard member 14 may be assembled to the soft portion 19 when the pad portion 11 is molded, but may be internally provided by fitting or the like afterwards.

  An impact sensor 17 composed of a piezoelectric element or the like is disposed on the back surface of the pad portion 11. The hit sensor 17 detects a hit from the vibration of the pad portion 11.

  The connection part 12 which is a thin part connects the peripheral part of the pad part 11 and the rim part 13. Although the planar view shape of the pad part 11 is not ask | required, if it is circular, for example, the connection part 12 and the rim | limb part 13 will become cyclic | annular.

  The rim portion 13 is fixed to the case 15 by fitting or the like. The striking surface 11a which is the surface of the pad portion 11 is hit with a hitting member such as a stick. The striking direction by the striking member is a direction perpendicular to the striking surface 11a and is a direction pushed by the striking member. Since the connecting portion 12 is thin and has elasticity, when the pad portion 11 is hit, it functions as a hinge by elastically deforming itself, and allows the entire pad portion 11 to sink in the hitting direction. The direction in which the pad 11 that has been struck and sunk is displaced when it returns to its original position is referred to as the direction opposite to the striking direction.

  In the example of FIG. 1A, the position of the rim portion 13 is fixed with respect to the case 15, so that the rim portion 13 substantially becomes a support portion that supports the pad portion 11. That is, the connection part 12 supports the pad part 11 on the rim part 13 so that the pad part 11 can be displaced in the striking direction and the opposite direction.

  The connecting portion 12 is bent in a side view. The connection position of the connection part 12 with respect to the pad part 11 in the striking direction is defined as a first connection position P1, and the connection position of the connection part 12 with respect to the rim part 13 is defined as a second connection position P2. In the non-striking state, the first connection position P1 is closer to the opposite side of the striking direction than the second connection position P2. Therefore, if the second connection position P2 is used as a reference, the pad portion 11 protrudes on the side opposite to the striking direction in a side view.

  FIGS. 1B, 1C, and 1D are schematic views of the vicinity of the connecting portion 12 in the stroke in which the pad portion 11 is hit and displaced in the hitting direction in the hitting pad 10 shown in FIG. is there. By hitting, the connecting portion 12 is deformed as follows.

  First, when hitting in a non-hitting state (FIGS. 1A and 1B), the pad portion 11 sinks in the hitting direction, and the first connection position P1 approaches the second connection position P2 (FIG. 1 (c)). FIG. 1 (b)). In the process from FIG. 1B to FIG. 1C, the deformation mode of the connecting portion 12 is elastic deformation mainly including compression and bending. Partial expansion does not always occur, but most areas are compressed or bent.

  Although depending on the impact strength, at the time of relatively strong impact, the pad portion 11 further sinks in the impact direction, and the first connection position P1 exceeds the second connection position P2 and sinks in the impact direction (FIG. 1 ( d)). In the process from FIG. 1 (c) to FIG. 1 (d), the elastic deformation of the connecting portion 12 is mainly stretched rather than compressed and bent. Therefore, the touch becomes quiet and soft with respect to a large hitting input.

  According to the present embodiment, in the non-striking state, the first connection position P1 is closer to the opposite side of the striking direction than the second connection position P2. Thereby, when a strong hit is made, the position of the first connection position P1 and the position of the second connection position P2 are reversed in the hitting direction in the displacement stroke of the pad portion 11 in the hitting direction by hitting. Since there is room, a large striking stroke can be secured. Accordingly, it is possible to improve the hit feeling and the quietness.

  In particular, in the displacement stroke of the pad portion 11 in the striking direction due to striking, the connecting portion 12 initially undergoes elastic deformation mainly consisting of bending and / or compression. When elastic deformation mainly in extension occurs in the connecting portion 12 during the displacement stroke of the pad portion 11 in the striking direction, such as during medium hitting or strong hitting, bending and / or compression before the occurrence occurs. Elastic deformation mainly occurs. Thereby, a sufficiently large striking stroke can be ensured.

(Modification)
Regarding the connection portion 12, various modes other than those shown in FIG. 1 are conceivable in which the first connection position P <b> 1 is positioned closer to the opposite side of the striking direction than the second connection position P <b> 2 in the non-blowing state. Hereinafter, a modification is shown in FIG. 2 and FIG.

  In the first modification shown in FIG. 2A, the connecting portion 12 has a linear shape from the first connecting position P1 to the second connecting position P2 in a side view. Since the connection portion 12 is recognized as a part of a conical shape as a whole of the hitting pad 10, it is possible to improve the hit feeling and the quietness while making the appearance like an acoustic drum.

  FIGS. 2B and 2C are schematic views of the vicinity of the connecting portion 12 in the non-striking state and the striking state, respectively, of the striking pad according to the second modification. 2D and 2E are schematic views of the vicinity of the connecting portion 12 in the non-striking state and the striking state, respectively, of the striking pad according to the third modification.

  As in the first modified example (FIG. 2A) described above, when the connecting portion 12 has a linear shape, the connecting portion 12 is not stretched and elastically deformed at the time of weak striking. Elastic deformation starts by buckling. For this reason, since the pad portion 11 sinks rapidly, the performance is not good.

  Therefore, as in the second and third modifications, the connecting portion 12 is provided with a dome-shaped curved portion 12a in advance. That is, a curved portion 12a that is curved in the non-playing state is formed in the same bending direction as the connecting portion 12 bends in the stroke in which the pad portion 11 is struck and displaced in the striking direction (FIG. 2 (b), ( d)).

  First, in the second modified example (FIG. 2B), the bending portion 12a is provided at a position close to the first connection position P1, and thus has a convex dome shape on the opposite side of the striking direction. In the third modified example (FIG. 2D), the bending portion 12a is provided at a position close to the second connection position P2, and thus has a dome shape convex in the striking direction.

  As shown in FIGS. 2 (c) and 2 (e), when hit, a large deformation starts at the connecting portion 12 from the curved portion 12 a. Therefore, the connecting portion 12 is not subjected to a sudden deformation such as buckling, but a smooth bending deformation occurs. Since the bending portion 12a increases the degree of bending according to the strength of the hitting, the sinking of the pad portion 11 becomes gentle according to the hitting force, and the performance is improved.

  In the example shown in FIG. 1 and FIG. 2 described above, the thickness of the connecting portion 12 in the striking direction is uniform (uniform). However, FIG. 3 illustrates an example in which the thickness varies depending on the part. If the thickness of the connecting portion 12 in the striking direction is uniform, it is necessary to set the thickness to such an extent that the connecting portion 12 can be deformed even with a weak hit. However, with such a design, it is easily deformed at the time of striking, and the amount of displacement of the pad portion 11 becomes too large, making it difficult to play.

  Fig.3 (a) is a schematic diagram of the vicinity of the connection part 12 in the non-striking state of the striking pad according to the fourth modification. As in the fourth modification, the connection portion 12 is provided with a thick portion 12b having a large thickness in the striking direction. Thereby, as for the connection part 12, the part which is not the thick part 12b elastically deforms previously, and when the impact force becomes strong, the thick part 12b will also deform | transform. Accordingly, it is possible to secure the ease of deformation of the connecting portion 12 in each of the weak hits and the strong hits, to facilitate the performance from the weak hits to the strong hits, and to improve the hit feeling.

  FIGS. 3B and 3C are schematic views of the vicinity of the connecting portion 12 in the non-striking state and the striking state of the striking pad according to the fifth modification, respectively. FIGS. 3D and 3E are schematic views of the vicinity of the connecting portion 12 in the non-striking state and the striking state of the striking pad according to the sixth modification, respectively.

  As in the fourth modification (FIG. 3A), if the change in the thickness of the connecting portion 12 is abrupt, the hitting feeling may suddenly become harder or softer depending on the hitting strength. Therefore, in the fifth and sixth modifications, the thickness of the connection portion 12 is designed to gradually change from the first connection position P1 to the second connection position P2. Furthermore, similarly to FIGS. 2B to 2D, a dome-shaped curved portion 12 a is provided in advance on the thin side of the connecting portion 12.

  Due to the gradual change of the wall thickness, the main deformation site gradually moves from the thin wall portion to the thick wall portion in accordance with the striking force, so that it is possible to absorb an appropriate shock regardless of whether it is weak or strong. Accordingly, the deformation gradually increases according to the hitting force, so that the hit feeling is improved and the performance is improved. In addition, by providing the bending portion 12a in advance on the thin side of the connecting portion 12, deformation starts more smoothly from the bending portion 12a at the time of impact.

  In the fifth modification (FIGS. 3B and 3C), the thickness of the connecting portion 12 is maximum in the vicinity of the first connecting position P1. Therefore, the connecting portion 12 is mainly deformed near the second connecting position P2, and is not so deformed near the first connecting position P1, so that even if the pad portion 11 sinks during striking, the shape change of the connecting portion 12 is Less noticeable. Since the pad portion 11 is displaced while maintaining its peripheral shape, there is an advantage that deterioration of the appearance can be prevented.

  On the other hand, in the sixth modified example (FIGS. 3D and 3E), the thickness of the connecting portion 12 is maximum in the vicinity of the second connecting position P2. For this reason, the connecting portion 12 is mainly deformed near the first connecting position P1, and is not so deformed near the second connecting position P2, so that the meat portion near the second connecting position P2 is not significantly displaced in the striking direction. Therefore, compared with the fifth modification, in the sixth modification, a space near the second connection position P2 is secured at the time of non-striking and at the time of striking (FIG. 3 (e)). Therefore, there is a margin that the components 16 such as the board and the wiring are arranged near the second connection position P2 and closer to the pad portion 11 so as not to interfere with the connection portion 12, and the design flexibility is improved. There is.

  In addition, the connection part 12 does not need to have a flesh part over the perimeter. In particular, from the viewpoint of improving the quietness, a part may be cut out as in the seventh and eighth modifications shown in FIG. 4, for example.

  FIGS. 4A and 4B are plan views of the striking pad according to the seventh and eighth modifications in the non-striking state.

  As in the seventh modification (FIG. 4A), the connecting portion 12 may be provided with notches 12d at regular intervals in the circumferential direction, and the meat portion of the connecting portion 12 may be divided into a plurality. Or you may form several small hole 12d in the connection part 12 like the 8th modification (FIG.4 (b)). At the time of impact, air passes through these notches 12d and small holes 12d, so that the sound is reduced.

  In addition, in the said embodiment and each modification, the pad part should just be the structure connected via the connection part which has elasticity with respect to a support part. The support portion does not need to be the rim portion 13, and may be a portion that does not move with respect to the floor surface when hit, and may be the case 15. Therefore, the connection part 12 may be separate from either or both of the rim part 13 and the pad part 11. The elements constituting the hitting pad 10 may not include the rim portion 13 and may not include the connection portion 12.

  Although the present invention has been described in detail based on preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also included in the present invention. included. You may combine suitably a part of each above-mentioned modification.

10 striking pad 11 pad portion 11a striking surface 12 connecting portion 13 rim portion (supporting portion)
P1 first connection position P2 second connection position

Claims (5)

A pad portion having a striking surface that is struck with the direction pushed by the striking member as the striking direction;
A connection portion that has elasticity and connects the pad portion and the support portion to support the pad portion on the support portion;
In the non-striking state, the first connecting position of the connecting portion with respect to the pad portion in the striking direction is closer to the opposite side of the striking direction than the second connecting position of the connecting portion with respect to the support portion. A striking pad characterized by that.   In the process in which the pad portion is struck and displaced in the striking direction, when elastic deformation mainly due to extension occurs in the connection portion, before the elastic deformation mainly due to extension occurs in the connection portion, 2. The striking pad according to claim 1, wherein an elastic deformation mainly including compression and / or bending occurs.   The said connection part has the curved part curved in the non-performance state in the same bending direction as the said connection part bends in the process which the said pad part is struck and is displaced to the said striking direction. Or the hit pad of 2 description.   The striking pad according to any one of claims 1 to 3, wherein a thickness of the connecting portion varies depending on a portion.   The striking pad according to any one of claims 1 to 4, wherein the thickness of the connection portion gradually changes from the first connection position to the second connection position.