JP2022037962A

JP2022037962A - Keyboard instrument and key for keyboard instrument

Info

Publication number: JP2022037962A
Application number: JP2020142207A
Authority: JP
Inventors: 康志白石; Koji Shiraishi
Original assignee: Casio Computer Co Ltd
Current assignee: Casio Computer Co Ltd
Priority date: 2020-08-26
Filing date: 2020-08-26
Publication date: 2022-03-10

Abstract

To provide a keyboard instrument and a key for a keyboard instrument to which plate members can be satisfactorily attached to side surfaces of the key.SOLUTION: A keyboard instrument 1 includes a keyboard including keys and having a key base member 210 and a set of plate members 216 arranged on side surfaces of the key base member 210 along a longitudinal direction. The plate members 216 have convex portions that protrude from an outer peripheral surface by length shorter than length in a thickness direction. The key base member 210 has surface potions 212c-4 and 214c-4 to which the plate members 216 are adhered and recess portions (212c-2 and 214c-2) corresponding to the convex portions, at the side surfaces.SELECTED DRAWING: Figure 3

Description

本発明は、鍵盤楽器及び鍵盤楽器用の鍵に関する。 The present invention relates to keyboard instruments and keys for keyboard instruments.

従来から鍵に木質感を付与した鍵盤楽器が提案されている。例えば、特許文献１には、白鍵の基材の左右両側の側面に、木質部を有する板状部品をそれぞれ貼り付けることにより、木質部の使用量を抑えながら、木質感を出すことができる鍵盤楽器（鍵構造体）が開示されている。また、木質部を有する板状部品は、貼着用シートによって白鍵の側面に貼り付けられる。 Conventionally, keyboard instruments with a wood texture added to the keys have been proposed. For example, in Patent Document 1, a keyboard instrument capable of producing a wood texture while suppressing the amount of wood parts used by attaching plate-shaped parts having wood parts to the left and right side surfaces of the white key base material, respectively. (Key structure) is disclosed. Further, the plate-shaped part having a woody portion is attached to the side surface of the white key by a sticking sheet.

特開２００９－２２９５１５号公報JP-A-2009-229515

しかしながら、特許文献１の鍵盤楽器では、貼着用シートの作成過程等において、縁に不要に突出したバリが生じると、貼着用シートを白鍵に貼り付ける際に、バリが生じた箇所が、貼着用シートの浮きとなってしまう。貼着用シートの浮きは、貼着不良や隣接する白鍵と接触を誘引する場合があった。 However, in the keyboard instrument of Patent Document 1, if an unnecessary protruding burr is generated on the edge in the process of creating the sticking / wearing sheet, the portion where the burr is generated is stuck when the sticking / wearing sheet is attached to the white key. The wearing sheet will float. The floating of the sticking sheet may induce poor sticking or contact with the adjacent white key.

本発明は、鍵の側面に板部材を良好に貼り付け可能な鍵盤楽器及び鍵盤楽器用の鍵を提供することを目的とする。 It is an object of the present invention to provide a keyboard instrument and a key for a keyboard instrument to which a plate member can be satisfactorily attached to the side surface of the key.

本発明の一実施例の鍵盤楽器は、鍵ベース部材と、前記鍵ベース部材の長手方向に沿った側面に配置されている板部材と、を有する鍵を含む鍵盤を備え、前記板部材は、厚み方向の長さより短い長さで、外周面から突出する凸部を有し、前記鍵ベース部材は、前記側面に、前記板部材の貼り付け面部と、前記凸部に対応する凹部と、を有する。 A keyboard instrument according to an embodiment of the present invention comprises a key including a key having a key base member and a plate member arranged on a side surface along a longitudinal direction of the key base member, and the plate member comprises a key. The key base member has a convex portion that is shorter than the length in the thickness direction and protrudes from the outer peripheral surface, and the key base member has a surface portion on which the plate member is attached and a concave portion corresponding to the convex portion on the side surface. Have.

本発明の一実施例の鍵盤楽器用の鍵は、鍵ベース部材と、前記鍵ベース部材の長手方向に沿った側面に配置されている板部材と、を有する鍵盤楽器用の鍵であって、前記板部材は、厚み方向の長さより短い長さで、外周面から突出する凸部を有し、前記鍵ベース部材は、前記側面に、前記板部材の貼り付け面部と、前記凸部に対応する凹部と、を有する。 The key for a keyboard instrument according to an embodiment of the present invention is a key for a keyboard instrument having a key base member and a plate member arranged on a side surface of the key base member along the longitudinal direction. The plate member has a length shorter than the length in the thickness direction and has a convex portion protruding from the outer peripheral surface, and the key base member corresponds to the sticking surface portion of the plate member and the convex portion on the side surface. It has a recess and a recess.

本発明によれば、鍵の側面に板部材を良好に貼り付け可能な鍵盤楽器及び鍵盤楽器用の鍵を提供することができる。 According to the present invention, it is possible to provide a keyboard instrument and a key for a keyboard instrument to which a plate member can be satisfactorily attached to the side surface of the key.

本発明の第１の実施形態に係る鍵盤楽器の鍵盤を示す斜視図である。It is a perspective view which shows the keyboard of the keyboard instrument which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係る鍵盤楽器の白鍵を示す斜視図である。It is a perspective view which shows the white key of the keyboard instrument which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係る白鍵の板部材を分解した状態を示す分解斜視図である。It is an exploded perspective view which shows the state which the plate member of the white key which concerns on 1st Embodiment of this invention is disassembled. 本発明の第１の実施形態に係る鍵ベース部材を示す斜視図であり、（ａ）は鍵ベース部材の左側面側を示し、（ｂ）は鍵ベース部材の右側面側を示す。It is a perspective view which shows the key base member which concerns on 1st Embodiment of this invention, (a) shows the left side surface side of a key base member, (b) shows the right side surface side of a key base member. 本発明の第１の実施形態に係る白鍵の左側面側に貼り付けられる板部材を中間省略して示す図３のＶ－Ｖ断面図である。It is a VV cross-sectional view of FIG. 3 which shows the plate member attached to the left side surface side of the white key which concerns on 1st Embodiment of this invention, omitting the middle part. 本発明の第１の実施形態に係る白鍵の右側面側に貼り付けられる板部材を中間省略して示す図３のＶＩ－ＶＩ断面図である。FIG. 3 is a sectional view taken along line VI-VI of FIG. 3 showing a plate member attached to the right side of the white key according to the first embodiment of the present invention, omitting the middle part. 本発明の第１の実施形態に係る板部材の作成工程を示すフロー図である。It is a flow chart which shows the manufacturing process of the plate member which concerns on 1st Embodiment of this invention. 本発明の実施形態に係る板部材の作成工程における外形抜き加工を行っている状態を示す模式図である。It is a schematic diagram which shows the state which the outer shape punching process is performed in the manufacturing process of the plate member which concerns on embodiment of this invention. 本発明の第１の実施形態に係る鍵ベース部材を示す図４（ｂ）のＩＸ－ＩＸ断面に相当する断面図である。It is sectional drawing corresponding to the IX-IX cross section of FIG. 4B which shows the key base member which concerns on 1st Embodiment of this invention. 本発明の第１の実施形態に係る鍵ベース部材を示す図４（ｂ）のＸ－Ｘ断面に相当する断面図であり、（ａ）は鍵ベース部材の左側面側を示し、（ｂ）は鍵ベース部材の右側面側を示す。It is sectional drawing corresponding to the XX cross section of FIG. 4 (b) which shows the key base member which concerns on 1st Embodiment of this invention, (a) shows the left side surface side of a key base member, (b). Indicates the right side of the key base member. 本発明の第１の実施形態に係る鍵ベース部材の変形例を示し、図４（ｂ）に示される鍵ベース部材のＩＸ－ＩＸ断面に相当する断面図である。A modification of the key base member according to the first embodiment of the present invention is shown, and is a cross-sectional view corresponding to the IX-IX cross section of the key base member shown in FIG. 4 (b). 本発明の第２の実施形態に係る鍵ベース部材を示す斜視図であり、（ａ）は鍵ベース部材の左側面側を示し、（ｂ）は鍵ベース部材の右側面側を示す。It is a perspective view which shows the key base member which concerns on 2nd Embodiment of this invention, (a) shows the left side surface side of a key base member, (b) shows the right side surface side of a key base member. 本発明の第２の実施形態に係る鍵ベース部材を示す図１２（ｂ）のＸＩＩＩ－ＸＩＩＩ断面に相当する断面図である。It is sectional drawing corresponding to the XIII-XIII cross section of FIG. 12B which shows the key base member which concerns on 2nd Embodiment of this invention. 本発明の第３の実施形態に係る鍵ベース部材を示す斜視図であり、（ａ）は鍵ベース部材の左側面側を示し、（ｂ）は鍵ベース部材の右側面側を示す。It is a perspective view which shows the key base member which concerns on 3rd Embodiment of this invention, (a) shows the left side surface side of a key base member, (b) shows the right side surface side of a key base member. 本発明の第３の実施形態に係る鍵ベース部材を示す図１４（ｂ）のＸＶ－ＸＶ断面に相当する断面図である。It is sectional drawing corresponding to the XV-XV cross section of FIG. 14B which shows the key base member which concerns on 3rd Embodiment of this invention.

（第１の実施形態）
以下、本発明を実施するための形態について述べる。図１は、鍵盤楽器１の鍵２を正面側から見た斜視図であり、奏者（ユーザ）から鍵盤楽器１を見た場合の右側端部であり、鍵２のひとつ（Ｇ鍵である白鍵２１）が押鍵された状態を示す。本実施形態の鍵盤楽器１は、電子ピアノについて示しているが、鍵盤を備えるものであればよく、例えば、奏者の押鍵操作に応じて発音する楽器であればその他の鍵盤楽器であってもよい。 (First Embodiment)
Hereinafter, embodiments for carrying out the present invention will be described. FIG. 1 is a perspective view of the key 2 of the keyboard instrument 1 as viewed from the front side, is the right end portion when the keyboard instrument 1 is viewed from the player (user), and is one of the keys 2 (white, which is the G key). Indicates a state in which the key 21) is pressed. Although the keyboard instrument 1 of the present embodiment shows an electronic piano, it may be any musical instrument provided with a keyboard, and may be any other keyboard instrument as long as it is an instrument that produces a sound in response to a player's key press operation. good.

鍵盤楽器１は、演奏操作子として音高を指定する複数の鍵２を有し、長方形状かつ平板状に形成される。鍵２は、白鍵２１及び黒鍵２２のいずれかを含む。白鍵２１及び黒鍵２２は、鍵盤楽器１の長辺方向に所定の順序で規則的に配列される。本実施形態の鍵盤楽器１の鍵盤２０は、白鍵２１及び黒鍵２２併せて、６１鍵を有する。なお、以下の説明において、鍵盤楽器１の鍵２側に位置する奏者から見た手前側を前又は正面、その反対側を後又は背面とし、奏者から見た左側を左、その反対側を右とする。 The keyboard instrument 1 has a plurality of keys 2 for designating pitches as performance controls, and is formed in a rectangular shape and a flat plate shape. The key 2 includes either a white key 21 or a black key 22. The white key 21 and the black key 22 are regularly arranged in a predetermined order in the long side direction of the keyboard instrument 1. The keyboard 20 of the keyboard instrument 1 of the present embodiment has 61 keys including the white key 21 and the black key 22. In the following description, the front side seen from the player located on the key 2 side of the keyboard instrument 1 is the front or the front, the opposite side is the back or the back, the left side seen from the player is the left, and the opposite side is the right. And.

図２は、図１に示す鍵盤楽器１の鍵盤２０に含まれる白鍵２１の１つである白鍵２１Ａ（Ｆ鍵に相当）を示した斜視図である。白鍵２１Ａは、鍵ベース部材２１０（鍵ベース部材２１０は、回転軸部２１１と、幅狭部２１２と、第１脚部２１３と、幅広部２１４と、第２脚部２１５と、を有する。）と、板部材２１６と、を備える。 FIG. 2 is a perspective view showing a white key 21A (corresponding to an F key), which is one of the white keys 21 included in the keyboard 20 of the keyboard instrument 1 shown in FIG. The white key 21A has a key base member 210 (the key base member 210 has a rotation shaft portion 211, a narrow portion 212, a first leg portion 213, a wide portion 214, and a second leg portion 215. ) And the plate member 216.

図３は、図２に示す白鍵２１Ａの幅狭部２１２及び幅広部２１４の夫々の側面に貼り付けられる板部材２１６を白鍵２１Ａから分離した分解斜視図である。換言すれば、図３は、白鍵２１Ａの鍵ベース部材２１０及び板部材２１６を分離した状態を示している。以下に、白鍵２１Ａが備える鍵ベース部材２１０及び板部材２１６について説明する。なお、鍵ベース部材２１０については、鍵ベース部材２１０が有する各部について説明する。 FIG. 3 is an exploded perspective view of the plate member 216 attached to each side surface of the narrow portion 212 and the wide portion 214 of the white key 21A shown in FIG. 2 separated from the white key 21A. In other words, FIG. 3 shows a state in which the key base member 210 and the plate member 216 of the white key 21A are separated. The key base member 210 and the plate member 216 included in the white key 21A will be described below. Regarding the key base member 210, each part of the key base member 210 will be described.

回転軸部２１１は、白鍵２１Ａ（鍵ベース部材２１０）の後側端部に位置する。回転軸部２１１は、鍵ベース部材２１０の背面側に向かって延在する２枚の平板状の部材である延在部２１１ａ及び延在部２１１ｂと、延在部２１１ａ及び延在部２１１ｂを接続する平板状の部材である接続部２１１ｃとを有する。回転軸部２１１の延在部２１１ａ及び延在部２１１ｂには、夫々、白鍵２１Ａの回転軸を通す挿通孔２１１Ａが設けられる。白鍵２１Ａは、回転軸部２１１の挿通孔２１１Ａ及び挿通孔２１１Ａ内を通す回転軸により、回転軸周りに所定の範囲回転し、押鍵及び押鍵後の復帰動作が可能となる。 The rotation shaft portion 211 is located at the rear end portion of the white key 21A (key base member 210). The rotation shaft portion 211 connects the extending portion 211a and the extending portion 211b, which are two flat plate-shaped members extending toward the back surface side of the key base member 210, and the extending portion 211a and the extending portion 211b. It has a connecting portion 211c which is a flat plate-shaped member. The extending portion 211a and the extending portion 211b of the rotating shaft portion 211 are each provided with an insertion hole 211A through which the rotating shaft of the white key 21A is passed. The white key 21A is rotated within a predetermined range around the rotation axis by the insertion hole 211A of the rotation shaft portion 211 and the rotation shaft passing through the insertion hole 211A, and the key is pressed and the return operation after the key is pressed becomes possible.

幅狭部２１２は、その下方から内部が空洞の中空構造を有する四角柱状である。そして、幅狭部２１２は、鍵ベース部材２１０の最も背面側に位置する回転軸部２１１から前方向に延在する。幅狭部２１２は、回転軸部２１１より延在した先で、幅広部２１４と接続する。換言すれば、幅狭部２１２は、一方端において回転軸部２１１と接続し、他方端において幅広部２１４と接続する。 The narrow portion 212 is a square columnar structure having a hollow structure with a hollow inside from below. The narrow portion 212 extends forward from the rotation shaft portion 211 located on the rearmost side of the key base member 210. The narrow portion 212 extends from the rotation shaft portion 211 and connects to the wide portion 214. In other words, the narrow portion 212 is connected to the rotating shaft portion 211 at one end and is connected to the wide portion 214 at the other end.

幅狭部２１２は、図４（ａ）及び（ｂ）に示すように、上面２１２ａ、左側面２１２ｂ及び右側面２１２ｃから構成される。なお、幅狭部２１２においては、右側面２１２ｃについてのみ説明し、幅狭部２１２の上面２１２ａ及び左側面２１２ｂの説明は、後述する幅広部２１４において行う。 As shown in FIGS. 4A and 4B, the narrow portion 212 is composed of an upper surface 212a, a left side surface 212b, and a right side surface 212c. In the narrow portion 212, only the right side surface 212c will be described, and the upper surface 212a and the left side surface 212b of the narrow portion 212 will be described in the wide portion 214 described later.

幅狭部２１２の右側面２１２ｃは、白鍵２１Ａ（鍵ベース部材２１０）の右側に位置する１側面であり、長方形状である。右側面２１２ｃには、上面２１２ａ側の外周縁に沿って延在する凸部２１２ｃ－１（後述する貼り付け位置合わせ凸部に相当）が設けられる。そして、右側面２１２ｃには、外側表面に、外周凹部２１２ｃ－２及び内側凹部２１２ｃ－３が設けられる。 The right side surface 212c of the narrow portion 212 is one side surface located on the right side of the white key 21A (key base member 210) and has a rectangular shape. The right side surface 212c is provided with a convex portion 212c-1 (corresponding to a pasting alignment convex portion described later) extending along the outer peripheral edge on the upper surface 212a side. The right side surface 212c is provided with an outer peripheral recess 212c-2 and an inner recess 212c-3 on the outer surface.

外周凹部２１２ｃ－２は、右側面２１２ｃの外周側に設けられ、板部材２１６と接する接触面部である貼り付け面部２１２ｃ－４より凹む凹部である。ここで、第１凹部について説明する。第１凹部は、右側面２１２ｃの表面等の面の外周側に設けられる。また、第１凹部は、右側面２１２ｃ等に板部材２１６を貼り付けた際に、板部材２１６の外周側に沿うように設けられる。また、第１凹部は、後述する板部材２１６と接する接触面部より凹む凹部である。そして、外周凹部２１２ｃ－２は、第１凹部に該当する。 The outer peripheral recess 212c-2 is a recess provided on the outer peripheral side of the right side surface 212c and recessed from the sticking surface portion 212c-4 which is a contact surface portion in contact with the plate member 216. Here, the first recess will be described. The first recess is provided on the outer peripheral side of a surface such as the surface of the right side surface 212c. Further, the first recess is provided along the outer peripheral side of the plate member 216 when the plate member 216 is attached to the right side surface 212c or the like. Further, the first recess is a recess recessed from the contact surface portion in contact with the plate member 216, which will be described later. The outer peripheral recess 212c-2 corresponds to the first recess.

内側凹部２１２ｃ－３は、外周凹部２１２ｃ－２の内側に設けられ、板部材２１６と接する接触面部である貼り付け面部２１２ｃ－４より凹む凹部である。ここで、第２凹部について説明する。第２凹部は、右側面２１２ｃ等に板部材２１６を貼り付けた際に、板部材２１６の中央部（板部材２１６の外周側より内側）に対応する位置に設けられ、接触面部となる貼り付け面部２１２ｃ－４等より凹む凹部である。そして、内側凹部２１２ｃ－３は、第２凹部に該当する。内側凹部２１２ｃ－３は、外周凹部２１２ｃ－２と接続しており、外周凹部２１２ｃ－２の内側に幅狭部２１２の右側面２１２ｃの長手方向（白鍵２１Ａ又は鍵ベース部材２１０の長手方向）並びに、幅狭部２１２の右側面２１２ｃの短手方向（上下方向）に複数延在して、格子状に設けられる。 The inner recess 212c-3 is a recess provided inside the outer peripheral recess 212c-2 and recessed from the sticking surface portion 212c-4 which is a contact surface portion in contact with the plate member 216. Here, the second recess will be described. The second recess is provided at a position corresponding to the central portion of the plate member 216 (inside the outer peripheral side of the plate member 216) when the plate member 216 is attached to the right side surface 212c or the like, and is attached as a contact surface portion. It is a concave portion recessed from the surface portion 212c-4 or the like. The inner recess 212c-3 corresponds to the second recess. The inner concave portion 212c-3 is connected to the outer peripheral concave portion 212c-2, and the longitudinal direction of the right side surface 212c of the narrow portion 212 inside the outer peripheral recess 212c-2 (longitudinal direction of the white key 21A or the key base member 210). In addition, a plurality of narrow portions 212 extend in the lateral direction (vertical direction) of the right side surface 212c and are provided in a grid pattern.

なお、外周凹部２１２ｃ－２をはじめとする第１凹部及び内側凹部２１２ｃ－３をはじめとする第２凹部は、幅０．５ｍｍ、深さ０．２ｍｍ程度とすることができるが、例えば、幅０．１ｍｍ、深さ０．３ｍｍとして設けられる。 The first recess including the outer peripheral recess 212c-2 and the second recess including the inner recess 212c-3 can have a width of about 0.5 mm and a depth of about 0.2 mm, for example, the width. It is provided with a depth of 0.1 mm and a depth of 0.3 mm.

第１脚部２１３は、幅狭部２１２における幅広部２１４側（回転軸部２１１側の反対側）より下方に延在する。第１脚部２１３は、略中央に前後方向に貫通した長方形状の孔部２１３Ａを有する。なお、第１脚部２１３は、白鍵２１Ａが押鍵された際に、孔部２１３Ａ内部に位置する打弦用のハンマー（不図示）の一端部を押圧することに用いられる。 The first leg portion 213 extends downward from the wide portion 214 side (opposite side of the rotating shaft portion 211 side) of the narrow portion 212. The first leg portion 213 has a rectangular hole portion 213A penetrating in the front-rear direction substantially in the center. The first leg portion 213 is used to press one end of a hammer for striking a string (not shown) located inside the hole portion 213A when the white key 21A is pressed.

幅広部２１４は、その下方から内部が空洞の中空構造を有する直方体状である。また、幅広部２１４は、平面視すると幅狭部２１２より拡幅している。幅広部２１４は、上面２１４ａ、左側面２１４ｂ及び右側面２１４ｃを有する。 The wide portion 214 has a rectangular parallelepiped shape having a hollow structure with a hollow inside from below. Further, the wide portion 214 is wider than the narrow portion 212 when viewed in a plan view. The wide portion 214 has an upper surface 214a, a left side surface 214b, and a right side surface 214c.

幅広部２１４は、その上面２１４ａにおいて、幅狭部２１２の上面２１２ａと同一面状の一体となった平坦面となり、白鍵２１Ａの上面となる。そして、幅広部２１４は、その左側面２１４ｂにおいても、幅狭部２１２の左側面２１２ｂと同一面状の一体となり、白鍵２１Ａ（鍵ベース部材２１０）の１側面である左側面となる。なお、幅広部２１４の上面２１４ａは、鍵盤楽器１を奏者が使用する際に奏者の指で押す押鍵部となる。 The wide portion 214 has a flat surface on the upper surface 214a that is flush with the upper surface 212a of the narrow portion 212, and is an upper surface of the white key 21A. The wide portion 214 is also integrated with the left side surface 212b of the narrow portion 212 on the left side surface 214b, and becomes a left side surface which is one side surface of the white key 21A (key base member 210). The upper surface 214a of the wide portion 214 is a key pressing portion that is pressed by the player's finger when the keyboard instrument 1 is used by the player.

幅狭部２１２の左側面２１２ｂ及び幅広部２１４の左側面２１４ｂは、図４（ａ）に示すように、夫々長方形状である。幅広部２１４の左側面２１４ｂは、幅狭部２１２の左側面２１２ｂと短手方向の長さがやや幅広であり、長手方向の長さが幅狭部２１２の左側面２１２ｂよりも短い長方形状である。従って、幅狭部２１２の左側面２１２ｂ及び幅広部２１４の左側面２１４ｂは、一体となると、長方形状となる。 As shown in FIG. 4A, the left side surface 212b of the narrow portion 212 and the left side surface 214b of the wide portion 214 are each rectangular. The left side surface 214b of the wide portion 214 has a rectangular shape in which the length in the lateral direction is slightly wider than the left side surface 212b of the narrow portion 212 and the length in the longitudinal direction is shorter than the left side surface 212b of the narrow portion 212. be. Therefore, the left side surface 212b of the narrow portion 212 and the left side surface 214b of the wide portion 214 become rectangular when integrated.

幅狭部２１２の左側面２１２ｂ及び幅広部２１４の左側面２１４ｂには、幅狭部２１２の上面２１２ａ側及び幅広部２１４の上面２１４ａ側の外周縁（本実施形態では上方及び前方の一部）と、幅広部２１４の正面２１４ｄと、に沿って夫々延在する凸部２１２ｂ－１（後述する貼り付け位置合わせ凸部に相当）が設けられる。そして、幅狭部２１２の左側面２１２ｂ及び幅広部２１４の左側面２１４ｂには、貼り付け面部２１２ｂ－４より凹む複数の凹部として、外周側に位置する外周凹部２１２ｂ－２及び外周凹部２１２ｂ－２より内側の凹部である内側凹部２１２ｂ－３が設けられる（図４（ａ）参照）。なお、外周凹部２１２ｂ－２は、前述の第１凹部に該当し、内側凹部２１２ｂ－３は、前述の第２凹部に該当する。外周凹部２１２ｂ－２及び内側凹部２１２ｂ－３は、左側面２１２ｂ及び左側面２１４ｂに亘って設けられる。そして、内側凹部２１２ｂ－３は、外周凹部２１２ｂ－２と接続されており、外周凹部２１２ｂ－２の内側において、幅狭部２１２の左側面２１２ｂ及び幅広部２１４の左側面２１４ｂの長手方向（白鍵２１Ａ又は鍵ベース部材２１０の長手方向）並びに、幅狭部２１２の左側面２１２ｂ及び幅広部２１４の左側面２１４ｂの短手方向（上下方向）に複数延在して、格子状に設けられる。 On the left side surface 212b of the narrow portion 212 and the left side surface 214b of the wide portion 214, the outer peripheral edges of the upper surface 212a side of the narrow portion 212 and the upper surface 214a side of the wide portion 214 (upper and front parts in this embodiment). A convex portion 212b-1 (corresponding to a pasting alignment convex portion described later) extending along the front surface 214d of the wide portion 214 is provided. Then, on the left side surface 212b of the narrow portion 212 and the left side surface 214b of the wide portion 214, as a plurality of recesses recessed from the pasting surface portion 212b-4, the outer peripheral recess 212b-2 and the outer peripheral recess 212b-2 located on the outer peripheral side are formed. An inner recess 212b-3, which is a more inner recess, is provided (see FIG. 4A). The outer peripheral recess 212b-2 corresponds to the above-mentioned first recess, and the inner recess 212b-3 corresponds to the above-mentioned second recess. The outer peripheral recess 212b-2 and the inner recess 212b-3 are provided over the left side surface 212b and the left side surface 214b. The inner recess 212b-3 is connected to the outer peripheral recess 212b-2, and inside the outer peripheral recess 212b-2, the longitudinal direction (white) of the left side surface 212b of the narrow portion 212 and the left side surface 214b of the wide portion 214. (Vertical direction of the key 21A or the key base member 210) and a plurality of extending in the lateral direction (vertical direction) of the left side surface 212b of the narrow portion 212 and the left side surface 214b of the wide portion 214, and are provided in a grid pattern.

図４（ｂ）に示す幅広部２１４の右側面２１４ｃは、白鍵２１Ａ（鍵ベース部材２１０）の右側に位置する１側面であり、長方形状である。右側面２１４ｃには、幅広部２１４の上面２１４ａ側及び正面２１４ｄ側の外周縁（本実施形態では上方及び前方の一部）に沿って延在する凸部２１４ｃ－１（後述する貼り付け位置合わせ凸部に相当）が設けられる。さらに、右側面２１４ｃには、後述する貼り付け面部２１４ｃ－４より凹む複数の凹部として、外周側に位置する外周凹部２１４ｃ－２及び外周凹部２１４ｃ－２より内側の凹部である内側凹部２１４ｃ－３が設けられる（図４（ａ）参照）。なお、外周凹部２１４ｃ－２は、前述の第１凹部に該当し、内側凹部２１４ｃ－３は、前述の第２凹部に該当する。 The right side surface 214c of the wide portion 214 shown in FIG. 4B is one side surface located on the right side of the white key 21A (key base member 210) and has a rectangular shape. On the right side surface 214c, the convex portion 214c-1 (paste alignment described later) extending along the outer peripheral edges (upper and front parts in the present embodiment) on the upper surface 214a side and the front surface 214d side of the wide portion 214. (Equivalent to a convex portion) is provided. Further, on the right side surface 214c, as a plurality of recesses recessed from the pasting surface portion 214c-4 described later, an outer peripheral recess 214c-2 located on the outer peripheral side and an inner recess 214c-3 which is a recess inside the outer peripheral recess 214c-2. Is provided (see FIG. 4 (a)). The outer peripheral recess 214c-2 corresponds to the above-mentioned first recess, and the inner recess 214c-3 corresponds to the above-mentioned second recess.

内側凹部２１４ｃ－３は、外周凹部２１４ｃ－２と接続されており、外周凹部２１４ｃ－２の内側において、幅広部２１４の右側面２１４ｃの長手方向（白鍵２１Ａ又は鍵ベース部材２１０の長手方向）並びに、幅広部２１４の右側面２１４ｃの短手方向（上下方向）に延在して、格子状に設けられる。右側面２１４ｃは、幅広部２１４の背面２１４ｅにより、幅狭部２１２の右側面２１２ｃと接続する。背面２１４ｅは、幅狭部２１２の右側面２１２ｃと上下方向に略同幅で右側面２１４ｃよりも小さい面積の四角形状の面である。背面２１４ｅは、幅狭部２１２の右側面２１２ｃに位置する貼り付け面部２１２ｃ－４に対して鍵ベース部材２１０の右方に突出している。なお、幅広部２１４の正面２１４ｄの説明は、後述する第２脚部２１５において行う。 The inner recess 214c-3 is connected to the outer peripheral recess 214c-2, and inside the outer peripheral recess 214c-2, the longitudinal direction of the right side surface 214c of the wide portion 214 (the longitudinal direction of the white key 21A or the key base member 210). Further, it extends in the lateral direction (vertical direction) of the right side surface 214c of the wide portion 214 and is provided in a grid pattern. The right side surface 214c is connected to the right side surface 212c of the narrow portion 212 by the back surface 214e of the wide portion 214. The back surface 214e is a quadrangular surface having substantially the same width in the vertical direction as the right side surface 212c of the narrow portion 212 and a smaller area than the right side surface 214c. The back surface 214e projects to the right of the key base member 210 with respect to the sticking surface portion 212c-4 located on the right side surface 212c of the narrow portion 212. The front surface 214d of the wide portion 214 will be described later in the second leg portion 215.

第２脚部２１５は、幅広部２１４の前方の端部側（回転軸部２１１側又は幅狭部２１２側の反対側）より下方に延在している。第２脚部２１５は、左側面２１５ａ、右側面２１５ｂ及び正面２１５ｃを有し、その下方及び後方（規制突起２１５Ａ側）が開口し、内部が空洞の中空構造を有する四角柱状である。第２脚部２１５の左側面２１５ａ及び右側面２１５ｂは、第２脚部２１５の下端側において、回転軸部２１１側に突出した規制突起２１５Ａが設けられる。従って、左側面２１５ａ及び右側面２１５ｂは、Ｌ字状に設けられる。 The second leg portion 215 extends downward from the front end side (the side opposite to the rotation shaft portion 211 side or the narrow portion 212 side) of the wide portion 214. The second leg portion 215 has a left side surface 215a, a right side surface 215b, and a front surface 215c, and is a square columnar structure having an opening below and behind (the regulation protrusion 215A side) and a hollow structure inside. The left side surface 215a and the right side surface 215b of the second leg portion 215 are provided with a regulation protrusion 215A protruding toward the rotation shaft portion 211 on the lower end side of the second leg portion 215. Therefore, the left side surface 215a and the right side surface 215b are provided in an L shape.

第２脚部２１５の正面２１５ｃは、幅広部２１４の正面２１４ｄと一体となって、白鍵２１Ａの正面２１Ａａとなる。幅広部２１４の正面２１４ｄ及び第２脚部２１５の正面２１５ｃは、夫々四角形状であり、白鍵２１Ａの正面２１Ａａは、表面が平坦な長方形状となる（図２も参照）。第２脚部２１５（規制突起２１５Ａ）は、白鍵２１Ａの押鍵による上下運動の移動範囲を、鍵盤楽器１内の図示しない規制部と当接する等して、規制することができる。 The front surface 215c of the second leg portion 215 is integrated with the front surface 214d of the wide portion 214 to form the front surface 21Aa of the white key 21A. The front surface 214d of the wide portion 214 and the front surface 215c of the second leg portion 215 each have a rectangular shape, and the front surface 21Aa of the white key 21A has a rectangular shape with a flat surface (see also FIG. 2). The second leg portion 215 (regulatory protrusion 215A) can regulate the range of movement of the vertical movement of the white key 21A by pressing the key by abutting with a restricting portion (not shown) in the keyboard instrument 1.

板部材２１６は、図２及び図３に示すように、白鍵２１Ａの左側面及び右側面に貼り付けられる。換言すれば、板部材２１６は、鍵ベース部材２１０の長手方向に沿った側面に配置される。板部材２１６は、突き板２１６－１（突き板部）、不織布２１６－２（不織布部）及び両面テープ２１６－３（両面テープ部）を含む（図４及び図５も参照）。なお、板部材２１６は、両面テープ２１６－３の代わりに接着剤を用いてもよい。 As shown in FIGS. 2 and 3, the plate member 216 is attached to the left side surface and the right side surface of the white key 21A. In other words, the plate member 216 is arranged on the side surface of the key base member 210 along the longitudinal direction. The plate member 216 includes a veneer 216-1 (veneer portion), a nonwoven fabric 216-2 (nonwoven fabric portion), and a double-sided tape 216-3 (double-sided tape portion) (see also FIGS. 4 and 5). The plate member 216 may use an adhesive instead of the double-sided tape 216-3.

ここで、板部材２１６の作成方法について、図７のフロー図を用いて説明する。まず、ステップＳ１０１として、木材を薄く削り、木材の厚さを調整し、薄板を作成する。ここで、薄板の厚さは、原料である木材の材質によって異なるが、０．２～０．５ｍｍ程度とすることができる。そして、薄板をカットすること（又は、薄板の短手方向の幅を任意の大きさに調整すること）により、突き板２１６－１を作成する。従って、突き板２１６－１は、木材より作成され、木目を有する。 Here, a method of creating the plate member 216 will be described with reference to the flow chart of FIG. First, as step S101, the wood is thinly cut, the thickness of the wood is adjusted, and a thin plate is created. Here, the thickness of the thin plate varies depending on the material of the wood as a raw material, but can be about 0.2 to 0.5 mm. Then, the veneer 216-1 is created by cutting the thin plate (or adjusting the width of the thin plate in the lateral direction to an arbitrary size). Therefore, the veneer 216-1 is made of wood and has a grain.

次に、ステップＳ１０２として、ステップＳ１０１において作成した突き板２１６－１を複数つなぎ合わせ、長いロール状にする。次に、ステップＳ１０３として、ステップＳ１０２において長いロール状にした突き板２１６－１に接着材を塗布し、接着材を塗布した突き板２１６－１の面に不織布２１６－２を貼り付けた後、接着材を乾燥させる。ここで、突き板２１６－１に貼り付ける不織布２１６－２の厚さは、突き板２１６－１の強度及び厚さの加工精度により、０．０５～０．１ｍｍとすることができる。なお、不織布２１６－２は、突き板２１６－１を補強する効果を有する。 Next, as step S102, a plurality of veneers 216-1 created in step S101 are joined together to form a long roll. Next, as step S103, an adhesive is applied to the veneer 216-1 in the shape of a long roll in step S102, and the non-woven fabric 216-2 is attached to the surface of the veneer 216-1 coated with the adhesive. Allow the adhesive to dry. Here, the thickness of the nonwoven fabric 216-2 to be attached to the veneer 216-1 can be 0.05 to 0.1 mm depending on the strength of the veneer 216-1 and the processing accuracy of the thickness. The non-woven fabric 216-2 has the effect of reinforcing the veneer 216-1.

次に、ステップＳ１０４として、ステップＳ１０３において突き板２１６－１に貼り付けられた不織布２１６－２に、両面テープ２１６－３を貼り付ける。両面テープ２１６－３は、突き板２１６－１、不織布２１６－２、両面テープ２１６－３の順に重ね合わせるように貼り付けられる。こうして、板部材２１６が作成される。そして、両面テープ２１６－３の厚さは、突き板２１６－１及び不織布２１６－２の強度により、適宜選択（例えば、０．１５ｍｍ）可能である。 Next, as step S104, the double-sided tape 216-3 is attached to the nonwoven fabric 216-2 attached to the veneer 216-1 in step S103. The double-sided tape 216-3 is attached so as to overlap the veneer 216-1, the non-woven fabric 216-2, and the double-sided tape 216-3 in this order. In this way, the plate member 216 is created. The thickness of the double-sided tape 216-3 can be appropriately selected (for example, 0.15 mm) depending on the strength of the veneer 216-1 and the nonwoven fabric 216-2.

次に、ステップＳ１０５として、図８に示すように、２つの金型を用いて、板部材２１６を任意の外形にする。具体的には、凸型である第１金型３０１の上に両面テープ２１６－３を第１金型３０１側に位置させて板部材２１６を配置する。そして、第１金型３０１の上部と略同一形状の凹部を有する凹型の第２金型３０２を、第１金型３０１の上方向から被せるように近接させて、第１金型３０１及び第２金型３０２を型締めすると、板部材２１６が打ち抜かれる。その後、第１金型３０１及び第２金型３０２を型開きすると、第１金型３０１側には、所定の外形に打ち抜かれた板部材２１６が作成される。 Next, as step S105, as shown in FIG. 8, two molds are used to make the plate member 216 an arbitrary outer shape. Specifically, the double-sided tape 216-3 is positioned on the first mold 301 side, which is a convex mold, and the plate member 216 is arranged. Then, the concave second mold 302 having a recess having substantially the same shape as the upper portion of the first mold 301 is brought close to the first mold 301 so as to be covered from above, and the first mold 301 and the second mold 301 are placed close to each other. When the die 302 is molded, the plate member 216 is punched out. After that, when the first die 301 and the second die 302 are opened, a plate member 216 punched into a predetermined outer shape is created on the first die 301 side.

ここで、ステップＳ１０５において、板部材２１６の外周端部側には、第２金型３０２を移動させて第１金型３０１及び第２金型３０２の型締めの剪断の際、又は型開きする際に、凸部であるバリ４００が発生することがある（図８のＡ部拡大図参照）。ロール状の板部材２１６における長手方向及び短手方向を切断する場合は、バリ４００は、第２金型３０２の凹部の内側に位置していた板部材２１６の外周縁部の全体に亘って出ることもあれば、板部材２１６の外周縁部の一部にのみ出ることもある。ロール状の板部材２１６における長手方向の２か所を切断する場合であれば、バリ４００は、第２金型３０２の凹部の内側に位置していた板部材２１６の左右方向の両端部側に出ることもあれば、左右どちらか片方の端部側のみに出ることもある。また、バリ４００は、板部材２１６の厚み方向の長さより短い長さ（最大０．１ｍｍ程度）で、板部材２１６の外周面から突出する凸部となり、バリ４００の成分は、両面テープ２１６－３のみに限らず、突き板２１６－１及び不織布２１６－２のいずれも含み得る。 Here, in step S105, the second mold 302 is moved to the outer peripheral end side of the plate member 216 to shear or open the molds of the first mold 301 and the second mold 302. At that time, a burr 400, which is a convex portion, may be generated (see the enlarged view of the A portion in FIG. 8). When cutting the roll-shaped plate member 216 in the longitudinal direction and the lateral direction, the burr 400 exits over the entire outer peripheral edge portion of the plate member 216 located inside the recess of the second mold 302. In some cases, it may appear only on a part of the outer peripheral edge of the plate member 216. When cutting two places in the roll-shaped plate member 216 in the longitudinal direction, the burrs 400 are placed on both ends in the left-right direction of the plate member 216 located inside the recess of the second mold 302. Sometimes it comes out, and sometimes it comes out only on either the left or right end side. Further, the burr 400 has a length shorter than the length in the thickness direction of the plate member 216 (up to about 0.1 mm) and becomes a convex portion protruding from the outer peripheral surface of the plate member 216, and the component of the burr 400 is the double-sided tape 216-. Not limited to 3, any of the veneer 216-1 and the non-woven fabric 216-2 may be included.

本実施形態において板部材２１６は、第１板部材２１６ａ、第２板部材２１６ｂ及び第３板部材２１６ｃとして、鍵ベース部材２１０の側面に夫々貼り付けられる。図３に示した第１板部材２１６ａ、第２板部材２１６ｂ及び第３板部材２１６ｃは、前述のステップＳ１０１乃至ステップＳ１０５により、夫々作成される。 In the present embodiment, the plate member 216 is attached to the side surface of the key base member 210 as the first plate member 216a, the second plate member 216b, and the third plate member 216c, respectively. The first plate member 216a, the second plate member 216b, and the third plate member 216c shown in FIG. 3 are each created by the above-mentioned steps S101 to S105.

第１板部材２１６ａは、白鍵２１Ａ（鍵ベース部材２１０）の左側面（幅狭部２１２の左側面２１２ｂ及び幅広部２１４の左側面２１４ｂ）に貼り付けられる。図５は、鍵ベース部材２１０の左側面側に貼り付けられる板部材２１６である第１板部材２１６ａの構成を示す断面図である。なお、第１板部材２１６ａにおけるバリ４００の有無及び形状は、一例である。第１板部材２１６ａは、図５及び図１０（ａ）に示すように、白鍵２１Ａの左側面側に向かって、突き板２１６ａ－１、不織布２１６ａ－２、両面テープ２１６ａ－３の順に配置される。従って、白鍵２１Ａの左側面には、両面テープ２１６ａ－３が接する。第１板部材２１６ａの縁部から突出するバリ４００は、幅狭部２１２の左側面２１２ｂ及び幅広部２１４の左側面２１４ｂの外周凹部２１２ｂ－２の内側に配置される。 The first plate member 216a is attached to the left side surface of the white key 21A (key base member 210) (the left side surface 212b of the narrow portion 212 and the left side surface 214b of the wide portion 214). FIG. 5 is a cross-sectional view showing the configuration of the first plate member 216a, which is the plate member 216 attached to the left side surface side of the key base member 210. The presence / absence and shape of the burr 400 in the first plate member 216a is an example. As shown in FIGS. 5 and 10A, the first plate member 216a is arranged in the order of the veneer 216a-1, the non-woven fabric 216a-2, and the double-sided tape 216a-3 toward the left side of the white key 21A. Will be done. Therefore, the double-sided tape 216a-3 is in contact with the left side surface of the white key 21A. The burr 400 protruding from the edge of the first plate member 216a is arranged inside the outer peripheral recess 212b-2 of the left side surface 212b of the narrow portion 212 and the left side surface 214b of the wide portion 214.

第２板部材２１６ｂは、幅狭部２１２の右側面２１２ｃに貼り付けられる。第２板部材２１６ｂは、幅狭部２１２の右側面２１２ｃ側に向かって、突き板２１６ｂ－１、不織布２１６ｂ－２、両面テープ２１６ｂ－３の順に配置される（断面構成は、後述の図６に示す第３板部材２１６ｃと同様）。従って、幅狭部２１２の右側面２１２ｃには、両面テープ２１６ｂ－３が接する。第２板部材２１６ｂの縁部から突出するバリ４００は、幅狭部２１２の右側面２１２ｃの外周凹部２１２ｃ－２の内側に配置される。 The second plate member 216b is attached to the right side surface 212c of the narrow portion 212. The second plate member 216b is arranged in the order of the veneer 216b-1, the non-woven fabric 216b-2, and the double-sided tape 216b-3 toward the right side surface 212c side of the narrow portion 212 (the cross-sectional configuration is shown in FIG. 6 described later). Same as the third plate member 216c shown in (1). Therefore, the double-sided tape 216b-3 is in contact with the right side surface 212c of the narrow portion 212. The burr 400 protruding from the edge of the second plate member 216b is arranged inside the outer peripheral recess 212c-2 of the right side surface 212c of the narrow portion 212.

第３板部材２１６ｃは、幅広部２１４の右側面２１４ｃに貼り付けられる。図６は、鍵ベース部材２１０の右側面側（幅広部２１４の右側面２１４ｃ側）に貼り付けられる板部材２１６である第３板部材２１６ｃの構成を示す断面図である。第３板部材２１６ｃは、第２板部材２１６ｂ同様、図６及び図１０（ｂ）に示すように、幅広部２１４の右側面２１４ｃ側に向かって、突き板２１６ｃ－１、不織布２１６ｃ－２、両面テープ２１６ｃ－３の順に配置される。従って、幅広部２１４の右側面２１４ｃには、両面テープ２１６ｃ－３が接する。第３板部材２１６ｃのバリ４００は、幅広部２１４の右側面２１４ｃの外周凹部２１４ｃ－２の内側に配置される。 The third plate member 216c is attached to the right side surface 214c of the wide portion 214. FIG. 6 is a cross-sectional view showing the configuration of the third plate member 216c, which is the plate member 216 attached to the right side surface side of the key base member 210 (the right side surface 214c side of the wide portion 214). Similar to the second plate member 216b, the third plate member 216c has the veneer 216c-1, the non-woven fabric 216c-2, toward the right side surface 214c side of the wide portion 214, as shown in FIGS. 6 and 10 (b). The double-sided tape 216c-3 is arranged in this order. Therefore, the double-sided tape 216c-3 is in contact with the right side surface 214c of the wide portion 214. The burr 400 of the third plate member 216c is arranged inside the outer peripheral recess 214c-2 of the right side surface 214c of the wide portion 214.

ここで、第３板部材２１６ｃを幅広部２１４の右側面２１４ｃに貼り付ける場合の態様を示す。まず、第３板部材２１６ｃの端部を、上面２１４ａ側及び／又は正面２１４ｄ側の凸部２１４ｃ－１の側面に接するように合わせる。次に、第３板部材２１６ｃの端部を凸部２１４ｃ－１の側面に合わせたまま、第３板部材２１６ｃの両面テープ２１６ｃ－３側を、幅広部２１４の表面に位置する貼り付け面部２１４ｃ－４に接触するまで近づけていく。この際、第３板部材２１６ｃの端部を凸部２１４ｃ－１の側面に合わせながら近づけることより、第３板部材２１６ｃ及び幅広部２１４の右側面２１４ｃの間にズレや隙間が生じにくくなる。換言すれば、凸部２１４ｃ－１は、幅広部２１４の右側面２１４ｃに第３板部材２１６ｃを貼り付ける際のガイドとなり、貼り付け位置合わせ凸部として機能する。貼り付け位置合わせ凸部は、鍵ベース部材２１０に設けられるものであって、板部材２１６の外周外側の少なくとも１部に対応する位置に設けられる。なお、第２板部材２１６ｂを幅狭部２１２の右側面２１２ｃに貼り付ける際には、凸部２１２ｃ－１に加え、幅広部２１４の背面２１４ｅも貼り付け位置合わせ凸部として機能する。 Here, an embodiment in the case where the third plate member 216c is attached to the right side surface 214c of the wide portion 214 will be shown. First, the end portion of the third plate member 216c is aligned so as to be in contact with the side surface of the convex portion 214c-1 on the upper surface 214a side and / or the front surface 214d side. Next, while keeping the end of the third plate member 216c aligned with the side surface of the convex portion 214c-1, the double-sided tape 216c-3 side of the third plate member 216c is placed on the surface of the wide portion 214 with the sticking surface portion 214c. Bring it closer until it touches -4. At this time, since the end portion of the third plate member 216c is brought closer to the side surface of the convex portion 214c-1, a gap or a gap is less likely to occur between the third plate member 216c and the right side surface 214c of the wide portion 214. In other words, the convex portion 214c-1 serves as a guide when the third plate member 216c is attached to the right side surface 214c of the wide portion 214, and functions as the attachment alignment convex portion. The sticking alignment convex portion is provided on the key base member 210, and is provided at a position corresponding to at least one portion on the outer peripheral side of the plate member 216. When the second plate member 216b is attached to the right side surface 212c of the narrow portion 212, the back surface 214e of the wide portion 214 also functions as the attachment alignment convex portion in addition to the convex portion 212c-1.

このようにして、突き板２１６ｃ－１に現れる木目を貼り付け位置合わせ凸部により隙間なく白鍵２１の安定した位置に施し、高い意匠性を得ることができる。 In this way, the wood grain appearing on the veneer 216c-1 is applied to the stable position of the white key 21 without a gap by the sticking and positioning convex portion, and high designability can be obtained.

次に、第３板部材２１６ｃ及び幅広部２１４の右側面２１４ｃが接触したら、第３板部材２１６ｃの両面テープ２１６ｃ－３により、第３板部材２１６ｃを図９に示すように幅広部２１４の貼り付け面部２１４ｃ－４に貼り付ける。このとき、幅広部２１４の右側面２１４ｃ（鍵ベース部材２１０）は、凸部２１４ｃ－１の側面及び貼り付け面部２１４ｃ－４の２か所の接触面部により、第３板部材２１６ｃと接する。 Next, when the third plate member 216c and the right side surface 214c of the wide portion 214 come into contact with each other, the third plate member 216c is attached to the wide portion 214 by the double-sided tape 216c-3 of the third plate member 216c as shown in FIG. It is attached to the attached surface portion 214c-4. At this time, the right side surface 214c (key base member 210) of the wide portion 214 is in contact with the third plate member 216c by the two contact surface portions of the side surface of the convex portion 214c-1 and the sticking surface portion 214c-4.

また、第３板部材２１６ｃを幅広部２１４の右側面２１４ｃに貼り付ける際、幅広部２１４の右側面２１４ｃ側（鍵ベース部材２１０側）に突出した第３板部材２１６ｃの端部のバリ４００は、第３板部材２１６ｃの表面の外周に設けられる外周凹部２１４ｃ－２の内側に配置される（図９のＢ部拡大図参照）。従って、外周凹部２１４ｃ－２をはじめとする第１凹部は、凸部であるバリ４００に対応する凹部となる。その際、外周凹部２１４ｃ－２及び内側凹部２１４ｃ－３は、第３板部材２１６ｃにより覆われるが、右側面２１４ｃの下側及び後側の外周凹部２１４ｃ－２は開放されたままとなる。そのため、第３板部材２１６ｃ及び幅広部２１４の右側面２１４ｃの間に混入した空気（気泡）は、例えば、第３板部材２１６ｃをヘラなどで押して混入した気泡を外周凹部２１４ｃ－２又は内側凹部２１４ｃ－３まで移動させることで、右側面２１４ｃの外周縁側より排出することができる。従って、混入した気泡は、外周凹部２１４ｃ－２及び／又は内側凹部２１４ｃ－３により抜く（除去する）ことができる。 Further, when the third plate member 216c is attached to the right side surface 214c of the wide portion 214, the burr 400 at the end of the third plate member 216c protruding toward the right side surface 214c side (key base member 210 side) of the wide portion 214 , Is arranged inside the outer peripheral recess 214c-2 provided on the outer periphery of the surface of the third plate member 216c (see the enlarged view of part B in FIG. 9). Therefore, the first concave portion including the outer peripheral concave portion 214c-2 is a concave portion corresponding to the burr 400 which is a convex portion. At that time, the outer peripheral recess 214c-2 and the inner recess 214c-3 are covered by the third plate member 216c, but the lower and rear outer peripheral recesses 214c-2 on the right side surface 214c remain open. Therefore, the air (air bubbles) mixed between the third plate member 216c and the right side surface 214c of the wide portion 214, for example, pushes the third plate member 216c with a spatula or the like to push the mixed air bubbles into the outer peripheral recess 214c-2 or the inner recess. By moving to 214c-3, it can be discharged from the outer peripheral edge side of the right side surface 214c. Therefore, the mixed air bubbles can be removed (removed) by the outer peripheral recess 214c-2 and / or the inner recess 214c-3.

本実施形態では、板部材２１６をＦ鍵である白鍵２１Ａの側面に貼り付ける構成について示したが、その他の音高の鍵２の側面にも、板部材２１６との接触面部となる貼り付け面部及び接触面部より凹む第１凹部を設けることで、板部材２１６を良好に貼り付けることができる。 In the present embodiment, the configuration in which the plate member 216 is attached to the side surface of the white key 21A which is the F key is shown, but the plate member 216 is also attached to the side surface of the other pitch key 2 as a contact surface portion with the plate member 216. By providing the first concave portion recessed from the surface portion and the contact surface portion, the plate member 216 can be satisfactorily attached.

（変形例）
次に、図１１を参照して、本発明の変形例を説明する。なお、本変形例の説明において、前述の実施形態と同様の構成及び効果については、その説明を省略又は簡素化する。本変形例は、第１凹部（第１の実施形態の図９に示した外周凹部２１２ｂ－２、外周凹部２１２ｃ－２及び外周凹部２１４ｃ－２）が、貼り付け位置合わせ凸部である凸部２１４ｃ－１に隣接する場合は、凸部２１４ｃ－１の側面に設けるものである。なお、凸部２１４ｃ－１の側面は、板部材２１６を貼り付けた際の接触面部となる。第１凹部を貼り付け位置合わせ凸部の側面に設けることで、バリ４００が板部材２１６の側面（突き板２１６－１、不織布２１６－２及び両面テープ２１６－３が露出する断面）より突出した場合においても、バリ４００を第１凹部の内側に配置することができる。 (Modification example)
Next, a modification of the present invention will be described with reference to FIG. In the description of this modification, the description of the same configuration and effect as that of the above-described embodiment will be omitted or simplified. In this modification, the first concave portion (the outer peripheral concave portion 212b-2, the outer peripheral concave portion 212c-2, and the outer peripheral concave portion 214c-2 shown in FIG. 9 of the first embodiment) is a convex portion in which the pasting alignment convex portion is formed. When it is adjacent to 214c-1, it is provided on the side surface of the convex portion 214c-1. The side surface of the convex portion 214c-1 is a contact surface portion when the plate member 216 is attached. By providing the first concave portion on the side surface of the sticking and aligning convex portion, the burr 400 protrudes from the side surface of the plate member 216 (cross section where the veneer 216-1, the non-woven fabric 216-2 and the double-sided tape 216-3 are exposed). Even in this case, the burr 400 can be arranged inside the first recess.

例えば、第１の実施形態の幅広部２１４の右側面２１４ｃに本変形例を適用した場合、図１１に示すように、第１の実施形態において貼り付け面部２１４ｃ－４側に設けられていた外周凹部２１４ｃ－２は、凸部２１４ｃ－１（貼り付け位置合わせ凸部）の側面に設けられる。なお、第１の実施形態に本変形例を適用する場合、外周凹部２１４ｃ－２は、内側凹部２１４ｃ－３と接続されている（不図示）。また、第３板部材２１６ｃのバリ４００は、第１の実施形態と突出する方向が異なり、板部材２１６の側面方向に突出する。そして、第３板部材２１６ｃを幅広部２１４の右側面２１４ｃに貼り付けると、図１１のＧ部拡大図に示すように、幅広部２１４の右側面２１４ｃは、第３板部材２１６ｃのバリ４００を凸部２１４ｃ－１の側面の内側に配置することができる。 For example, when this modification is applied to the right side surface 214c of the wide portion 214 of the first embodiment, as shown in FIG. 11, the outer periphery provided on the sticking surface portion 214c-4 side in the first embodiment. The concave portion 214c-2 is provided on the side surface of the convex portion 214c-1 (pasting positioning convex portion). When this modification is applied to the first embodiment, the outer peripheral recess 214c-2 is connected to the inner recess 214c-3 (not shown). Further, the burr 400 of the third plate member 216c has a different projecting direction from that of the first embodiment, and projects in the side surface direction of the plate member 216. Then, when the third plate member 216c is attached to the right side surface 214c of the wide portion 214, the right side surface 214c of the wide portion 214 has a burr 400 of the third plate member 216c as shown in the enlarged view of the G portion in FIG. It can be arranged inside the side surface of the convex portion 214c-1.

また、外周凹部２１４ｃ－２は、第１の実施形態のように貼り付け面部２１４ｃ－４側に設けた上で、凸部２１４ｃ－１の側面にも設けることもできる。さらに、外周凹部２１４ｃ－２は、貼り付け面部２１４ｃ－４の端部より斜め下方向に設けることもできる。様々な形態の外周凹部２１４ｃ－２のうちの一つを適宜選択又は複数を組み合わせることで、様々な突出方向を有するバリ４００に対応できる。本変形例は、後述する第２の実施形態及び第３の実施形態においても、外周凹部２１４ｃ－２の位置を変更することで、適用可能である。 Further, the outer peripheral concave portion 214c-2 may be provided on the side of the sticking surface portion 214c-4 as in the first embodiment, and may also be provided on the side surface of the convex portion 214c-1. Further, the outer peripheral recess 214c-2 may be provided diagonally downward from the end of the sticking surface portion 214c-4. By appropriately selecting one of the outer peripheral recesses 214c-2 of various forms or combining a plurality of them, it is possible to cope with the burr 400 having various protruding directions. This modification can also be applied to the second embodiment and the third embodiment described later by changing the position of the outer peripheral recess 214c-2.

（第２の実施形態）
次に、本発明の第２の実施形態を説明する。なお、本実施形態の説明において、前述の実施形態及び変形例と同様の構成及び効果については、その説明を省略又は簡素化する。本実施形態は、図１２（ａ）及び（ｂ）に示すように、第２凹部として、第１内側凹部（内側凹部２１２ｂ－３ａ、内側凹部２１２ｃ－３ａ及び内側凹部２１４ｃ－３ａ）及び第２内側凹部（内側凹部２１２ｂ－３ｂ、内側凹部２１２ｃ－３ｂ及び内側凹部２１４ｃ－３ｂ）の２つの凹部が、鍵ベース部材２１０の各面に夫々設けられる。第１内側凹部は、設けられた鍵ベース部材２１０の面を内部（鍵ベース部材２１０の中空構造となっている箇所）に向かって貫通する貫通孔である。第２内側凹部は、第１内側凹部から白鍵２１Ａ（鍵ベース部材２１０）の長手方向の前後両側方向に延在する溝である。なお、第２内側凹部は、第１内側凹部から白鍵２１Ａ（鍵ベース部材２１０）の短手方向に延在するものであってもよい。また、第２内側凹部である内側凹部２１２ｂ－３ｂ、内側凹部２１２ｃ－３ｂ及び内側凹部２１４ｃ－３ｂは、夫々、第１凹部である外周凹部２１２ｂ－２、外周凹部２１２ｃ－２及び外周凹部２１４ｃ－２とは接続されずに設けられる。本実施形態は、第１凹部及び第２内側凹部が接続されないことに限定されない。従って、第１凹部及び第２内側凹部は、接続して設けることもできる。 (Second embodiment)
Next, a second embodiment of the present invention will be described. In the description of the present embodiment, the description thereof will be omitted or simplified with respect to the same configurations and effects as those of the above-described embodiments and modifications. In this embodiment, as shown in FIGS. 12A and 12B, as the second recess, the first inner recess (inner recess 212b-3a, inner recess 212c-3a and inner recess 214c-3a) and the second recess are provided. Two recesses (inner recess 212b-3b, inner recess 212c-3b and inner recess 214c-3b) are provided on each surface of the key base member 210, respectively. The first inner recess is a through hole that penetrates the surface of the provided key base member 210 toward the inside (a portion having a hollow structure of the key base member 210). The second inner recess is a groove extending from the first inner recess in both the front and rear directions of the white key 21A (key base member 210) in the longitudinal direction. The second inner recess may extend from the first inner recess in the lateral direction of the white key 21A (key base member 210). Further, the inner recess 212b-3b, the inner recess 212c-3b, and the inner recess 214c-3b, which are the second inner recesses, are the first recesses, the outer peripheral recess 212b-2, the outer peripheral recess 212c-2, and the outer recess 214c-, respectively. It is provided without being connected to 2. The present embodiment is not limited to the fact that the first recess and the second inner recess are not connected. Therefore, the first recess and the second inner recess can be connected and provided.

例えば、幅広部２１４の右側面２１４ｃにおける第１内側凹部及び第２内側凹部は、図１３に示すように、夫々、内側凹部２１４ｃ－３ａ及び内側凹部２１４ｃ－３ｂとして設けられる。第１内側凹部である内側凹部２１４ｃ－３ａは、幅広部２１４の右側面２１４ｃの略中央に設けられる。第２内側凹部である内側凹部２１４ｃ－３ｂは、内側凹部２１４ｃ－３ａを中心として前後両側方向に延在する（図１２（ｂ）参照）。そして、第３板部材２１６ｃを幅広部２１４の右側面２１４ｃに貼り付ける際には、第３板部材２１６ｃ及び幅広部２１４の右側面２１４ｃの間に混入した空気（気泡）を内側凹部２１４ｃ－３ａ又は内側凹部２１４ｃ－３ｂまで移動させることで、貫通孔である内側凹部２１４ｃ－３ａより、抜く（除去する）ことができる。本実施形態は、貫通孔である内側凹部２１４ｃ－３ａのみでなく、その周囲に溝である内側凹部２１４ｃ－３ｂを設けたことにより、より広範囲の空気を抜くことができる上、内側凹部２１４ｃ－３ｂが設けられた範囲で内側凹部２１４ｃ－３ａの位置を自由に設計可能となる。なお、第１内側凹部は、幅狭部２１２の左側面２１２ｂ及び幅広部２１４の左側面２１４ｂ、幅狭部２１２の右側面２１２ｃと幅広部２１４の右側面２１４ｃの各面に１つずつ設けることに限定されず、第２内側凹部と接続して複数設けてもよい。 For example, the first inner recess and the second inner recess on the right side surface 214c of the wide portion 214 are provided as the inner recess 214c-3a and the inner recess 214c-3b, respectively, as shown in FIG. The inner recess 214c-3a, which is the first inner recess, is provided substantially in the center of the right side surface 214c of the wide portion 214. The inner recess 214c-3b, which is the second inner recess, extends in both front and rear directions with the inner recess 214c-3a as the center (see FIG. 12B). Then, when the third plate member 216c is attached to the right side surface 214c of the wide portion 214, air (air bubbles) mixed between the third plate member 216c and the right side surface 214c of the wide portion 214 is introduced into the inner recess 214c-3a. Alternatively, by moving it to the inner recess 214c-3b, it can be pulled out (removed) from the inner recess 214c-3a which is a through hole. In the present embodiment, not only the inner recess 214c-3a which is a through hole but also the inner recess 214c-3b which is a groove is provided around the inner recess 214c-3b, so that a wider range of air can be evacuated and the inner recess 214c- The position of the inner recess 214c-3a can be freely designed within the range provided with 3b. The first inner recess is provided on each of the left side surface 212b of the narrow portion 212, the left side surface 214b of the wide portion 214, the right side surface 212c of the narrow portion 212, and the right side surface 214c of the wide portion 214. The present invention is not limited to the above, and a plurality of may be provided by connecting to the second inner recess.

（第３の実施形態）
次に、本発明の第３の実施形態を説明する。なお、本実施形態の説明において、前述の実施形態及び変形例と同様の構成及び効果については、その説明を省略又は簡素化する。本実施形態は、図１４（ａ）及び（ｂ）に示すように、第２凹部として、内側凹部２１２ｂ－３ｃ、内側凹部２１２ｃ－３ｃ及び内側凹部２１４ｃ－３ｃが、鍵ベース部材２１０の各側面となる幅狭部２１２の左側面２１２ｂ、幅狭部２１２の右側面２１２ｃ及び幅広部２１４の右側面２１４ｃに夫々設けられる。本実施形態において、第２凹部（内側凹部２１２ｂ－３ｃ、内側凹部２１２ｃ－３ｃ及び内側凹部２１４ｃ－３ｃ）は、設けられた鍵ベース部材２１０の面を内部（鍵ベース部材２１０の中空構造となっている箇所）に向かって貫通する貫通孔である。 (Third embodiment)
Next, a third embodiment of the present invention will be described. In the description of the present embodiment, the description thereof will be omitted or simplified with respect to the same configurations and effects as those of the above-described embodiments and modifications. In this embodiment, as shown in FIGS. 14A and 14B, as the second recess, the inner recess 212b-3c, the inner recess 212c-3c and the inner recess 214c-3c are each side surface of the key base member 210. It is provided on the left side surface 212b of the narrow portion 212, the right side surface 212c of the narrow portion 212, and the right side surface 214c of the wide portion 214, respectively. In the present embodiment, the second recess (inner recess 212b-3c, inner recess 212c-3c and inner recess 214c-3c) has a hollow structure inside the surface of the provided key base member 210 (the hollow structure of the key base member 210). It is a through hole that penetrates toward the place where the key is formed.

例えば、幅広部２１４の右側面２１４ｃにおける第２凹部は、図１５に示すように、内側凹部２１４ｃ－３ｃとして設けられる。内側凹部２１４ｃ－３ｃは、幅広部２１４の右側面２１４ｃ上下方向の中央側かつ前後方向やや前側及び幅広部２１４の右側面２１４ｃ上下方向の中央側かつ前後方向やや後側に夫々１つずつ設けられる。そして、第３板部材２１６ｃを幅広部２１４の右側面２１４ｃに貼り付ける際には、第３板部材２１６ｃ及び幅広部２１４の右側面２１４ｃの間に混入した空気（気泡）を貫通孔である２つの内側凹部２１４ｃ－３ａにより、抜くことができる。本実施形態は、第３板部材２１６ｃとの接着面となる幅広部２１４の右側面２１４ｃの貼り付け面部２１４ｃ－４が連続的で広くなるため、第３板部材２１６ｃ及び幅広部２１４の右側面２１４ｃの固定が強固となる他、第３板部材２１６ｃを幅広部２１４の右側面２１４ｃに貼り付けた後に幅広部２１４の右側面２１４ｃの表面に凹凸が現れにくくなる。なお、図１４（ａ）に示す左側面２１２ｂにおいては、内側凹部２１３ｂ－３ｃは、幅広部２１４の左側面２１２ｂ上下方向の中央側かつ前後方向に亘って合計７箇所に設けられる。図１４（ｂ）に示す右側面２１２ｃにおいては、内側凹部２１２ｃ－３ｃは、幅狭部２１２の右側面２１２ｃ上下方向の中央側かつ前後方向に亘って、略等間隔に合計４箇所に設けられる。 For example, the second recess on the right side surface 214c of the wide portion 214 is provided as the inner recess 214c-3c as shown in FIG. The inner recesses 214c-3c are provided one by one on the right side surface 214c of the wide portion 214 on the center side in the vertical direction and slightly front side and on the right side surface 214c of the wide portion 214 on the vertical side and slightly rear side in the front-rear direction. .. Then, when the third plate member 216c is attached to the right side surface 214c of the wide portion 214, the air (air bubbles) mixed between the third plate member 216c and the right side surface 214c of the wide portion 214 is a through hole 2 It can be pulled out by the two inner recesses 214c-3a. In this embodiment, since the sticking surface portion 214c-4 of the right side surface 214c of the wide portion 214 which is the adhesive surface with the third plate member 216c is continuous and wide, the right side surface of the third plate member 216c and the wide portion 214 In addition to strengthening the fixing of the 214c, unevenness is less likely to appear on the surface of the right side surface 214c of the wide portion 214 after the third plate member 216c is attached to the right side surface 214c of the wide portion 214. In the left side surface 212b shown in FIG. 14A, the inner recesses 213b-3c are provided at a total of seven locations on the central side in the vertical direction and in the front-rear direction of the left side surface 212b of the wide portion 214. In the right side surface 212c shown in FIG. 14B, the inner recesses 212c-3c are provided at a total of four locations at substantially equal intervals on the center side in the vertical direction and in the front-rear direction of the right side surface 212c of the narrow portion 212. ..

以上、各実施形態では、鍵ベース部材２１０と、鍵ベース部材２１０の長手方向に沿った側面に配置されている板部材２１６と、を有する鍵２を含む鍵盤２０を備え、板部材２１６は、厚み方向の長さより短い長さで、外周面から突出する凸部（４００）を有し、鍵ベース部材２１０は、側面に、板部材２１６の貼り付け面部２１２ｂ－４、２１２ｃ－４及び２１４ｃ－４と、凸部（４００）に対応する凹部と、を有する鍵盤楽器１について説明した。この構成により、鍵盤楽器１は、バリ４００を有する板部材２１６であっても鍵ベース部材２１０に良好に貼り付けることができる。 As described above, in each embodiment, the keyboard 20 including the key 2 having the key base member 210, the plate member 216 arranged on the side surface of the key base member 210 along the longitudinal direction, and the plate member 216 is provided. The key base member 210 has a convex portion (400) that is shorter than the length in the thickness direction and protrudes from the outer peripheral surface, and the key base member 210 has a side surface portion 212b-4, 212c-4, and 214c-on which the plate member 216 is attached. The keyboard instrument 1 having the 4 and the concave portion corresponding to the convex portion (400) has been described. With this configuration, the keyboard instrument 1 can be satisfactorily attached to the key base member 210 even if the plate member 216 has the burr 400.

また、鍵ベース部材２１０は、板部材２１６の中央部に対応する位置に貼り付け面部２１２ｂ－４、２１２ｃ－４及び２１４ｃ－４より凹む第２凹部を有する鍵盤楽器１は、鍵ベース部材２１０及び板部材２１６の間に混入した空気又は気泡を第２凹部へと移動させることで、空気又は気泡を鍵ベース部材２１０及び板部材２１６の間から除去できる。 Further, the key base member 210 is attached at a position corresponding to the central portion of the plate member 216, and the keyboard instrument 1 having a second recess recessed from the surface portions 212b-4, 212c-4 and 214c-4 is the key base member 210 and By moving the air or air bubbles mixed between the plate members 216 to the second recess, the air or air bubbles can be removed from between the key base member 210 and the plate member 216.

また、第２凹部は、鍵ベース部材２１０の内部に貫通する貫通孔である鍵盤楽器１は、鍵ベース部材２１０及び板部材２１６の間に混入した空気又は気泡を第２凹部より抜くことができる。 Further, the second recess is a through hole penetrating the inside of the key base member 210, and the keyboard instrument 1 can remove air or air bubbles mixed between the key base member 210 and the plate member 216 from the second recess. ..

また、第２凹部は、鍵２の長手方向に延在する溝である鍵盤楽器１は、鍵ベース部材２１０及び板部材２１６の間に混入した空気又は気泡を、第２凹部である溝の内部に収納することができる。 Further, the second recess is a groove extending in the longitudinal direction of the key 2. The keyboard instrument 1 allows air or air bubbles mixed between the key base member 210 and the plate member 216 to be introduced into the groove which is the second recess. Can be stored in.

また、第２凹部は、鍵ベース部材２１０の内部に貫通する貫通孔及び、鍵２の長手方向に延在する溝である鍵盤楽器１は、鍵ベース部材２１０及び板部材２１６の間に混入した空気又は気泡を、第２凹部である貫通孔から抜くことができる他、第２凹部である溝の内部に収納した後、第２凹部である貫通孔から抜くことができる。従って、広範囲となった第２凹部より空気又は気泡を抜くことができる。更に、第２凹部である貫通孔の位置は、第２凹部である溝が設けられている範囲で自由に配置できる。 Further, the second recess is a through hole penetrating the inside of the key base member 210, and the keyboard instrument 1 which is a groove extending in the longitudinal direction of the key 2 is mixed between the key base member 210 and the plate member 216. Air or air bubbles can be removed from the through hole which is the second recess, and can also be removed from the through hole which is the second recess after being stored inside the groove which is the second recess. Therefore, air or air bubbles can be removed from the widened second recess. Further, the position of the through hole which is the second recess can be freely arranged within the range where the groove which is the second recess is provided.

また、鍵ベース部材２１０は、板部材２１６の外周外側の少なくとも１部に対応する位置に、貼り付け面部２１２ｂ－４、２１２ｃ－４及び２１４ｃ－４より突き出る貼り付け位置合わせ凸部を有する鍵盤楽器１は、鍵ベース部材２１０に板部材２１６を貼り付けることが容易となる。 Further, the key base member 210 is a keyboard instrument having a sticking alignment convex portion protruding from the sticking surface portions 212b-4, 212c-4 and 214c-4 at a position corresponding to at least one portion on the outer peripheral outer side of the plate member 216. No. 1 makes it easy to attach the plate member 216 to the key base member 210.

また、板部材２１６は、木目を有する突き板部（２１６－１）と、突き板部（２１６－１）を補強する不織布部（２１６－２）と、鍵ベース部材２１０に貼り付けられる両面テープ部（２１６－３）と、を含む鍵盤楽器１は、木目を有する突き板部（２１６－１）により木質感をだすことができ、不織布部（２１６－２）により板部材２１６の強度を向上させ、両面テープ部（２１６－３）により板部材２１６を鍵ベース部材２１０に貼り付けることができる。 Further, the plate member 216 includes a veneer portion (216-1) having a grain, a non-woven fabric portion (216-2) that reinforces the veneer portion (216-1), and a double-sided tape attached to the key base member 210. The keyboard instrument 1 including the part (216-3) can give a wood texture by the veneer part (216-1) having a grain, and the non-woven fabric part (216-2) improves the strength of the board member 216. The plate member 216 can be attached to the key base member 210 by the double-sided tape portion (216-3).

また、鍵ベース部材２１０と、鍵ベース部材２１０の短手方向の少なくとも１側面に配置されている板部材２１６と、を有する鍵２を含む鍵盤を備え、板部材２１６は、外周側から鍵ベース部材２１０側に突出する凸部（４００）を有し、鍵ベース部材２１０は、少なくとも１側面に、板部材２１６と接する接触面部と、板部材２１６の外周側に沿って接触面部より凹む第１凹部と、を有し、鍵ベース部材２１０における第１凹部内に、板部材２１６における凸部（４００）が配置され、接触面部は、鍵ベース部材２１０に板部材２１６が貼り付けられる貼り付け面部２１２ｂ－４、２１２ｃ－４及び２１４ｃ－４を含む鍵盤楽器用の鍵２を説明した。この構成により、鍵盤楽器用の鍵２は、バリ４００を有する板部材２１６であっても鍵ベース部材２１０に良好に貼り付けることができる。 Further, a keyboard including a key 2 having a key base member 210 and a plate member 216 arranged on at least one side surface of the key base member 210 in the lateral direction is provided, and the plate member 216 is a key base from the outer peripheral side. The key base member 210 has a convex portion (400) protruding toward the member 210, and the key base member 210 has a contact surface portion in contact with the plate member 216 on at least one side surface, and a first portion recessed from the contact surface portion along the outer peripheral side of the plate member 216. The key base member 210 has a concave portion, and the convex portion (400) of the plate member 216 is arranged in the first concave portion of the key base member 210, and the contact surface portion is a sticking surface portion on which the plate member 216 is attached to the key base member 210. The key 2 for a keyboard instrument including 212b-4, 212c-4 and 214c-4 has been described. With this configuration, the key 2 for a keyboard instrument can be satisfactorily attached to the key base member 210 even if it is a plate member 216 having a burr 400.

なお、以上説明した実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の趣旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。これらの実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。 The embodiments described above are presented as examples, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other embodiments, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and variations thereof are included in the scope and gist of the invention, and are also included in the scope of the invention described in the claims and the equivalent scope thereof.

以下に、本願出願の最初の特許請求の範囲に記載された発明を付記する。
［請求項１］
鍵ベース部材と、前記鍵ベース部材の長手方向に沿った側面に配置されている板部材と、を有する鍵を含む鍵盤を備え、
前記板部材は、厚み方向の長さより短い長さで、外周面から突出する凸部を有し、
前記鍵ベース部材は、前記側面に、前記板部材の貼り付け面部と、前記凸部に対応する凹部と、を有する、鍵盤楽器。
［請求項２］
前記鍵ベース部材は、前記板部材の中央部に対応する位置に前記貼り付け面部より凹む第２凹部を有する、請求項１に記載の鍵盤楽器。
［請求項３］
前記第２凹部は、前記鍵ベース部材の内部に貫通する貫通孔である、請求項２に記載の鍵盤楽器。
［請求項４］
前記第２凹部は、鍵の長手方向に延在する溝である、請求項２に記載の鍵盤楽器。
［請求項５］
前記第２凹部は、前記鍵ベース部材の内部に貫通する貫通孔及び、鍵の長手方向に延在する溝である、請求項２に記載の鍵盤楽器。
［請求項６］
前記鍵ベース部材は、前記板部材の外周外側の少なくとも１部に対応する位置に、前記貼り付け面部より突き出る貼り付け位置合わせ凸部を有する、請求項１乃至５のいずれかに記載の鍵盤楽器。
［請求項７］
前記板部材は、木目を有する突き板部と、前記突き板部を補強する不織布部と、前記鍵ベース部材に貼り付けられる両面テープ部と、を含む、請求項１乃至６のいずれかに記載の鍵盤楽器。
［請求項８］
鍵ベース部材と、前記鍵ベース部材の長手方向に沿った側面に配置されている板部材と、を有する鍵盤楽器用の鍵であって、
前記板部材は、厚み方向の長さより短い長さで、外周面から突出する凸部を有し、
前記鍵ベース部材は、前記側面に、前記板部材の貼り付け面部と、前記凸部に対応する凹部と、を有する、鍵盤楽器用の鍵。 The inventions described in the first claims of the present application are described below.
[Claim 1]
A keyboard including a key having a key base member and a plate member arranged on a side surface along the longitudinal direction of the key base member.
The plate member has a length shorter than the length in the thickness direction and has a convex portion protruding from the outer peripheral surface.
The key base member is a keyboard instrument having a surface portion on which the plate member is attached and a concave portion corresponding to the convex portion on the side surface thereof.
[Claim 2]
The keyboard instrument according to claim 1, wherein the key base member has a second recess recessed from the sticking surface portion at a position corresponding to the central portion of the plate member.
[Claim 3]
The keyboard instrument according to claim 2, wherein the second recess is a through hole penetrating inside the key base member.
[Claim 4]
The keyboard instrument according to claim 2, wherein the second recess is a groove extending in the longitudinal direction of the key.
[Claim 5]
The keyboard instrument according to claim 2, wherein the second recess is a through hole penetrating inside the key base member and a groove extending in the longitudinal direction of the key.
[Claim 6]
The keyboard instrument according to any one of claims 1 to 5, wherein the key base member has a sticking alignment convex portion protruding from the sticking surface portion at a position corresponding to at least one portion on the outer peripheral outer side of the plate member. ..
[Claim 7]
6. Keyboard instrument.
[Claim 8]
A key for a keyboard instrument having a key base member and a plate member arranged on a side surface of the key base member along the longitudinal direction.
The plate member has a length shorter than the length in the thickness direction and has a convex portion protruding from the outer peripheral surface.
The key base member is a key for a keyboard instrument having a surface portion on which the plate member is attached and a concave portion corresponding to the convex portion on the side surface thereof.

１鍵盤楽器２鍵
２０鍵盤２１白鍵
２１Ａ白鍵２１Ａａ正面
２２黒鍵２１０鍵ベース部材
２１１回転軸部
２１１Ａ挿通孔２１１ａ延在部
２１１ｂ延在部２１１ｃ接続部
２１２幅狭部２１２ａ上面
２１２ｂ左側面２１２ｂ－１凸部
２１２ｂ－２外周凹部２１２ｂ－３内側凹部
２１２ｂ－３ａ内側凹部２１２ｂ－３ｂ内側凹部
２１２ｂ－３ｃ内側凹部２１２ｂ－４貼り付け面部
２１２ｃ右側面２１２ｃ－１凸部
２１２ｃ－２外周凹部２１２ｃ－３内側凹部
２１２ｃ－３ａ内側凹部２１２ｃ－３ｂ内側凹部
２１２ｃ－３ｃ内側凹部２１２ｃ－４貼り付け面部
２１３第１脚部２１３Ａ孔部
２１４幅広部２１４ａ上面
２１４ｂ左側面２１４ｃ右側面
２１４ｃ－１凸部２１４ｃ－２外周凹部
２１４ｃ－３内側凹部２１４ｃ－３ａ内側凹部
２１４ｃ－３ｂ内側凹部２１４ｃ－３ｃ内側凹部
２１４ｃ－４貼り付け面部２１４ｄ正面
２１４ｅ背面２１５第２脚部
２１５Ａ規制突起２１５ａ左側面
２１５ｂ右側面２１５ｃ正面
２１６板部材２１６－１突き板（部）
２１６－２不織布（部）２１６－３両面テープ（部）
２１６ａ第１板部材２１６ａ－１突き板
２１６ａ－２不織布２１６ａ－３両面テープ
２１６ｂ第２板部材２１６ｂ－１突き板
２１６ｂ－２不織布２１６ｂ－３両面テープ
２１６ｃ第３板部材２１６ｃ－１突き板
２１６ｃ－２不織布２１６ｃ－３両面テープ
３０１第１金型３０２第２金型
４００バリ 1 keyboard instrument 2 keys 20 keys 21 white keys 21A white keys 21Aa front 22 black keys 210 key base member 211 rotation shaft part 211A insertion hole 211a extension part 211b extension part 211c connection part 212 narrow part 212a top surface 212b left side surface 212b -1 Convex portion 212b-2 Outer peripheral concave portion 212b-3 Inner concave portion 212b-3a Inner concave portion 212b-3b Inner concave portion 212b-3c Inner concave portion 212b-4 Attached surface portion 212c Right side surface 212c-1 Convex portion 212c-2 Outer peripheral concave portion 212c- 3 Inner recess 212c-3a Inner recess 212c-3b Inner recess 212c-3c Inner recess 212c-4 Attached surface 213 First leg 213A Hole 214 Wide part 214a Top 214b Left side 214c Right side 214c-1 Convex 214c- 2 Outer peripheral recess 214c-3 Inner recess 214c-3a Inner recess 214c-3b Inner recess 214c-3c Inner recess 214c-4 Attached surface 214d Front 214e Back 215 Second leg 215A Control protrusion 215a Left side 215b Right side 215c Front 216 Plate member 216-1 thrust plate (part)
216-2 Non-woven fabric (part) 216-3 Double-sided tape (part)
216a First plate member 216a-1 Non-woven fabric 216a-2 Non-woven fabric 216a-3 Double-sided tape 216b Second plate member 216b-1 Veneer 216b-2 Non-woven fabric 216b-3 Double-sided tape 216c Third plate member 216c-1 Thrust plate 216c- 2 Non-woven fabric 216c-3 Double-sided tape 301 1st mold 302 2nd mold 400 Bali

Claims

A keyboard including a key having a key base member and a plate member arranged on a side surface along the longitudinal direction of the key base member.
The plate member has a length shorter than the length in the thickness direction and has a convex portion protruding from the outer peripheral surface.
The key base member is a keyboard instrument having a surface portion on which the plate member is attached and a concave portion corresponding to the convex portion on the side surface thereof.

The keyboard instrument according to claim 1, wherein the key base member has a second recess recessed from the sticking surface portion at a position corresponding to the central portion of the plate member.

The keyboard instrument according to claim 2, wherein the second recess is a through hole penetrating inside the key base member.

The keyboard instrument according to claim 2, wherein the second recess is a groove extending in the longitudinal direction of the key.

The keyboard instrument according to claim 2, wherein the second recess is a through hole penetrating inside the key base member and a groove extending in the longitudinal direction of the key.

The keyboard instrument according to any one of claims 1 to 5, wherein the key base member has a sticking alignment convex portion protruding from the sticking surface portion at a position corresponding to at least one portion on the outer peripheral outer side of the plate member. ..

6. Keyboard instrument.

A key for a keyboard instrument having a key base member and a plate member arranged on a side surface of the key base member along the longitudinal direction.
The plate member has a length shorter than the length in the thickness direction and has a convex portion protruding from the outer peripheral surface.
The key base member is a key for a keyboard instrument having a surface portion on which the plate member is attached and a concave portion corresponding to the convex portion on the side surface thereof.