JP2008216302A - Case of upright piano and upright piano - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a case of an upright piano which does not spoil the beauty as the upright piano, while enabling the sound propagation to outside from the case to be improved. <P>SOLUTION: Propagation sections 75 and 77 are arranged so that through-holes 65 and 67 formed in an upper front panel 55 and a lower front panel 57 of the case 50 may be respectively closed, and an inner structure of the upright piano 1 is prevented from being seen, thereby the beauty as the upright piano is not spoiled. Since the propagation sections 75 and 77 for closing the through-holes 65 and 67 are composed of members which are suitable for propagating vibration of sound generated by a sound board 40, the propagation of sound to outside is hardly disturbed compared with a case when nets are stacked only in order to conceal the through-holes 65 and 67. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a case for an upright piano.

  Conventionally, upright pianos have a structure that surrounds the soundboard with exterior parts, so the sound emitted by the soundboard tends to be confined to the internal space, and you can check the nuances and timbre changes with your ears. However, there was a problem that it was not suitable for playing.

In order to solve such a problem, the applicant of the present application distributes a plurality of through holes on the front surface of an exterior part such as an upper front plate, a lower front plate, and a roof, and propagates sound from these through holes to the outside. The case of the upright piano which comprised is proposed (refer patent document 1).
JP-A-9-146532

However, the case of the above-described upright piano has the following problems because it simply has a through-hole formed in the exterior part.
The problem is that if the number of through holes is increased or the area of the through holes is increased in order to improve sound transmission to the outside, the internal structure becomes visible and the aesthetic appearance of the upright piano as a whole is easily impaired. It is. In order to compensate for this, Patent Document 1 proposes to laminate a net that hides the through hole. However, since the through hole is blocked by the lamination of such a net, sound propagation to the outside May be hindered.

  The present invention has been made to solve such problems, and its purpose is to impair the aesthetics of an upright piano in the case of an upright piano in order to improve sound propagation to the outside. It is to provide technology to make it difficult.

  In order to solve the above problems, the case of the upright piano according to claim 1 is formed so as to penetrate through at least a part of the exterior component disposed so as to surround the soundboard of the upright piano. It has a through hole and a propagation part which is arranged so as to close the through hole and is made of a member suitable for propagating sound vibrations emitted from the soundboard.

  According to the case of the upright piano configured as described above, the propagation part is arranged so as to block the through hole formed in the exterior part, and thus it is possible to prevent the internal structure from being seen. The beauty as a light piano is hard to be damaged.

  And since the propagation part which closes up a penetration hole consists of a member suitable for propagating the vibration of the sound emitted from a sound board, compared with the case where a net only for concealing a penetration hole is laminated, it is outside. Propagation of sound is not easily disturbed.

The through holes in this configuration may be formed so as to penetrate at least a part of the exterior component, and the number, size, shape, and the like are not particularly limited.
In addition, if this through hole is formed in a part of the exterior part, its specific position is not particularly limited, but in order to perform while confirming the nuances and timbre changes with the ear, the player side It is desirable to be formed.

  For this purpose, for example, a case of an upright piano case described in claim 2 may be used. In the case of the upright piano, the through hole is formed so as to penetrate at least a part of the region on the player side of the upright piano.

  With this configuration, the sound emitted from the soundboard is easily propagated to the performer via the propagation section, so it is suitable for playing while checking the nuances and timbre changes with your ears. It becomes.

The “region on the player side” in this configuration is, for example, a part of the upper front plate or the lower front plate in the exterior part.
Moreover, the propagation part mentioned above should just consist of a member suitable for propagating the vibration of the sound emitted from a sound board, and it does not specifically limit about the specific member.

  For example, as described in claim 3, the propagation part is formed of any member or a plurality of members among an animal skin, a vibration film made of a resin material, a vibration member for a speaker, and bamboo. Good.

  Since these members are also used to propagate and radiate sound in musical instruments and acoustic equipment other than pianos, the sound emitted from the soundboard is appropriately generated by forming a propagation part with such members. It is possible to make a case of propagating to the outside.

  In addition, in the case of a propagation part formed by these members, by adjusting the shape, size, thickness, tension, etc. of the member, sounds of frequencies that are easily propagated to the outside and frequencies that are difficult to propagate are finely tuned. Will be able to adjust.

Moreover, as the propagation part described above, for example, as described in claim 4, the propagation part may be formed by combining plate-like members extending in a certain direction in a lattice shape.
If comprised in this way, since not only the propagation of the sound by the member itself which comprises a propagation part but a sound can be distribute | circulated from the clearance gap at the time of combining this member, sound propagation will be made more favorable. be able to.

  In addition, if a plate-like member in this configuration is a member having a certain degree of rigidity, such as a resin material or bamboo, the propagation part thus formed acts to maintain the shape of the through hole in the exterior part. As a result, it is easier to maintain the strength of the exterior part than when the net is laminated in the through hole.

  Furthermore, if it becomes easy to maintain the strength as an exterior part in this way, a large one can be formed as a through hole, and such a large through hole allows sound to be transmitted to the outside through the propagation portion. Propagation can be made better.

The upright piano according to claim 5 is characterized in that the case of the upright piano according to any one of claims 1 to 4 is arranged so as to surround the soundboard.
According to the upright piano configured as described above, the same operations and effects as those obtained by the upright piano case according to any one of claims 1 to 4 can be obtained.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIGS. 1 and 2, the upright piano 1 includes a keyboard 10 composed of a plurality of keys, an action mechanism 20 that operates in response to the operation of the keyboard 10, a string 30 that is pressed by the action mechanism 20, and a string 30. It is composed of a tensioned soundboard 40, a case 50 forming an exterior as the upright piano 1, and the like.

  The case 50 includes a set of a parent plate 51 that forms a side surface of the case 50, an upper front plate 55 and a lower front plate 57 that form a front surface (a player side surface), and a roof plate 59 that forms a ceiling surface. These constitute exterior parts that surround the soundboard 40.

  Among these, the upper front plate 55 and the lower front plate 57 respectively close the plurality of through holes 65 and 67 formed so as to penetrate from the outside to the inside of the case 50 and the through holes 65 and 67. And disposed propagation parts 75 and 77. In the present embodiment, the upper front plate 55 has three rectangular through holes 65 formed along the longitudinal direction of the upper front plate 55 (left and right direction in FIGS. 1 and 3). Two rectangular through holes 67 are formed in the plate 57 along the longitudinal direction (same as above) of the lower front plate 57.

  The propagation portions 75 and 77 are sheet-like members made of a member suitable for propagating sound vibrations emitted from the soundboard 40, and these are the through holes 65 of the upper front plate 55 and the lower front plate 57. In the vicinity of 67, it is attached so as to close these through holes 65, 67. In this embodiment, the propagation portions 75 and 77 are formed of any one of animal skin, a vibration film made of a resin material, a vibration member for a speaker, and bamboo.

As shown in FIG. 3, the propagation portions 75 and 77 may be formed by combining plate-like members (for example, bamboo materials and resin materials) extending in a certain direction in a lattice shape.
In the upright piano 1 configured as described above, the propagation portions 75 and 77 are arranged so as to close the through holes 65 and 67 formed in the upper front plate 55 and the lower front plate 57 of the case 50, respectively. Therefore, it is possible to prevent the internal structure of the upright piano 1 from being seen, so that the aesthetic appearance of the upright piano is hardly impaired.

  And since the propagation parts 75 and 77 which block the through holes 65 and 67 are made of a member suitable for propagating the vibration of the sound emitted from the soundboard 40, a net for simply hiding the through holes 65 and 67 is provided. Compared to the case of stacking, the propagation of sound to the outside is less likely to be hindered.

  Moreover, in the said embodiment, since the through-holes 65 and 67 are formed in the upper front board 55 and the lower front board 57 which are arrange | positioned at the player side in the upright piano 1, it originated from the sound board 40. Since the sound is easily propagated to the performer through the propagation units 75 and 77, the sound is suitable for performance while confirming the nuances and timbre changes with the ear.

  Moreover, in the said embodiment, as a member which forms the propagation parts 75 and 77, any member is used among the animal skin, the vibration film which consists of resin materials, the vibration member for speakers, and bamboo.

  Since these members are members that are also used for propagating and radiating sound in musical instruments and acoustic equipment other than the piano, the members are emitted from the soundboard 40 by forming the propagation portions 75 and 77 with such members. The sound can be appropriately propagated to the outside.

  Further, in the case of the propagation portions 75 and 77 formed by these members, by adjusting the shape, size, thickness, tension, etc. of the members, the sound of the frequency that is easily propagated to the outside or the frequency that is difficult to propagate Sound can be fine-tuned.

  Further, as the propagation portions 75 and 77, when the one formed by combining plate-like members extending in a certain direction in a lattice shape as shown in FIG. 3, the propagation portions 75 and 77 are configured. Since sound can be distributed not only through sound propagation by the member itself but also through a gap when the members are combined, sound propagation can be made better.

  Further, if a member having a certain degree of rigidity, such as a resin material or bamboo material, is used as the plate-like member in this configuration, the propagation portions 75 and 77 formed in this way are through holes in the upper front plate 55 and the lower front plate 57. As a result of acting so as to maintain the shapes of 65 and 67, it is easier to maintain the strength as the exterior component as compared with the case where nets are stacked in the through holes 65 and 67.

  Furthermore, if it becomes easy to maintain the strength as the exterior component in this way, a large one can be formed as the through holes 65 and 67, and the propagation parts 75 and 67 can be formed by such large through holes 65 and 67. Sound propagation to the outside through 77 can be made better.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that various forms can be taken as long as they belong to the technical scope of the present invention. .

  For example, in the above embodiment, three rectangular through holes 65 and 67 are formed along the longitudinal direction of the upper front plate 55 and two along the longitudinal direction of the lower front plate 57. The example was illustrated. However, the number, size, and shape of the through holes 65 and 67 are not limited to this embodiment.

  Moreover, in the said embodiment, the through-holes 65 and 67 illustrated what was formed in the upper front board 55 and the lower front board 57 which are arrange | positioned at the player side in the upright piano 1. FIG. However, these through holes may be formed in other members constituting the case 50 other than the upper front plate 55 and the lower front plate 57.

  Moreover, in the said embodiment, the propagation parts 75 and 77 illustrated what was formed with either the member of the skin of an animal, the vibration film which consists of resin materials, the vibration member for speakers, and bamboo. However, the propagation portions 75 and 77 may be formed by combining two or more of these members.

Perspective view of upright piano Vertical section of upright piano The perspective view of the upright piano in another embodiment

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Upright piano, 10 ... Keyboard, 20 ... Action mechanism, 30 ... String, 40 ... Soundboard, 50 ... Case, 51 ... Main board, 55 ... Upper front board, 57 ... Lower front board, 59 ... Roof board, 65 ... Through hole, 67 ... Through hole, 75 ... Propagation part, 77 ... Propagation part.

Claims (5)

Exterior parts arranged to surround the soundboard of the upright piano,
A through hole formed so as to penetrate at least a part of the exterior component;
An upright piano case, comprising: a propagation portion which is disposed so as to close the through-hole and is made of a member suitable for propagating vibrations of sound emitted from the soundboard. The case of the upright piano according to claim 1, wherein the through hole is formed so as to penetrate at least a part of a region on the player side of the upright piano. The said propagation | transmission part is formed with the member of animal skin, the vibration film | membrane which consists of resin materials, the vibration member for speakers, and the bamboo material, or one or more members. The case of the upright piano as described in 2. The case of the upright piano according to any one of claims 1 to 3, wherein the propagation portion is formed by combining plate-like members extending in a certain direction in a lattice shape. The upright piano case according to any one of claims 1 to 4, wherein the upright piano case is arranged so as to surround the soundboard.

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