JPH0594893U - Electronic musical instrument - Google Patents
Electronic musical instrumentInfo
- Publication number
- JPH0594893U JPH0594893U JP3904592U JP3904592U JPH0594893U JP H0594893 U JPH0594893 U JP H0594893U JP 3904592 U JP3904592 U JP 3904592U JP 3904592 U JP3904592 U JP 3904592U JP H0594893 U JPH0594893 U JP H0594893U
- Authority
- JP
- Japan
- Prior art keywords
- partition plate
- case
- packing member
- speaker
- upper partition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Casings For Electric Apparatus (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
(57)【要約】
【目的】 密閉用のパッキン部材を上仕切板と下仕切板
との間に配設する際において、当該密閉用のパッキン部
材を、上仕切板と前記下仕切板との間に配設するための
配設作業を、容易かつ迅速に行うことができるととも
に、前記上仕切板と前記下仕切板との機械的な強度が充
分なものとすることができる電子楽器を提供することを
目的とする。
【構成】 上ケ−ス側に形成された上仕切板8と、この
上仕切板8と対向する下ケ−ス2の位置に形成された下
仕切板9の間に、密閉用のパッキン部材10を配設し、
前記上仕切板8と前記下仕切板9との双方の両側面に
は、補強用の上部補強リブ15、下部補強リブ16が形
成されているので、この上部補強リブ15、下部補強リ
ブ16の位置決め作用により、前記パッキン部材10の
外周を位置決めすることができるとともに、前記上仕切
板8と前記下仕切板9との双方の機械的な強度を補強す
ることができる。
(57) [Abstract] [Purpose] When a packing member for sealing is arranged between the upper partition plate and the lower partition plate, the packing member for sealing should be separated from the upper partition plate and the lower partition plate. Provided is an electronic musical instrument capable of easily and promptly performing an arranging operation for arranging it between them, and having sufficient mechanical strength between the upper partition plate and the lower partition plate. The purpose is to do. A packing member for sealing is provided between an upper partition plate 8 formed on the upper case side and a lower partition plate 9 formed at a position of the lower case 2 facing the upper partition plate 8. Arrange 10
Since upper reinforcing ribs 15 and lower reinforcing ribs 16 for reinforcement are formed on both side surfaces of both the upper partition plate 8 and the lower partition plate 9, the upper reinforcing ribs 15 and the lower reinforcing ribs 16 are formed. By the positioning action, the outer periphery of the packing member 10 can be positioned, and the mechanical strengths of both the upper partition plate 8 and the lower partition plate 9 can be reinforced.
Description
【0001】[0001]
この考案は、小型の電子オルガンや電子ピアノ等の電子楽器に関する。 The present invention relates to electronic musical instruments such as small electronic organs and electronic pianos.
【0002】[0002]
従来、本体ケ−スを構成している上ケ−スおよび下ケ−スに、各ケ−ス内をそ れぞれ仕切るリブを一体形成するとともに、前記上ケ−スと前記下ケ−スとを音 響的に分離する仕切板部材を該上ケ−スと下ケ−スとの間に配設し、このリブお よび仕切板部材により、前記上ケ−スに取り付けられたスピ−カを収容するため のスピ−カ収容部を形成した構成の電子楽器が知られている。 Conventionally, ribs for partitioning the inside of each case are integrally formed on the upper case and the lower case constituting the main body case, and the upper case and the lower case are formed. A partition plate member that acoustically separates the upper case and the lower case is disposed between the upper case and the lower case, and the ribs and the partition plate member are attached to the upper case. There is known an electronic musical instrument having a structure in which a speaker accommodating portion for accommodating a speaker is formed.
【0003】[0003]
ところで、、前述した従来の電子楽器の場合、上ケ−スと下ケ−スとを音響的 に分離する仕切板部材を該上ケ−スと下ケ−スとの間に配設しているので、上ケ −スの一部に取り付けられている鍵盤側への音漏れの防止や音漏れに起因する本 体ケ−スの共振防止を図ることができる反面、このように仕切板部材を上ケ−ス と下ケ−スとの間に配設しているので、電子楽器全体の重量が増大するばかりで なく、仕切板部材を別に製作し、これを組み付けなければならず、このため、コ ストの増加および組み付け作業の煩雑さを招いている。 そこで、最近、電子楽器全体の重量の低減化ばかりでなく、仕切板部材を別に 製作することなく、このため、コストの増加および組み付け作業の煩雑さを招く ことなく、上ケ−スの一部に取り付けられている鍵盤側への音漏れの防止や音漏 れに起因する本体ケ−スの共振防止を図ることができる電子楽器を提案している 。 この提案に係る電子楽器は、下方部が開放された上ケ−スと上方部が開放され た下ケ−スとを組み合わせて構成された本体ケ−スと、前記上ケ−ス上の一部に 取り付けられた鍵盤と、前記上ケ−スのうち、前記鍵盤が取り付けられている部 分以外の他の部分に形成されたスピ−カ取付部に取り付けられたスピ−カと、前 記スピ−カ取付部に、前記スピ−カの側部を取り囲むように一体形成された上仕 切板と、この上仕切板と対向する前記下ケ−スの位置に、前記スピ−カの側部を 取り囲むように一体形成された下仕切板と、この上仕切板と前記下仕切板との間 に配設された密閉用のパッキン部材とを備えている。 しかしながら、前記密閉用のパッキン部材を前記上仕切板と前記下仕切板との 間に配設する際、密閉用のパッキン部材を上仕切板と前記下仕切板との間に位置 決めしながら、配設しなければならず、その配設作業が煩雑であり、また、前記 上仕切板と前記下仕切板との機械的な強度が未だ充分なものではない、といった 問題点があった。 この考案は、こうした従来の問題点に鑑みてなされたものであり、密閉用のパ ッキン部材を上仕切板と下仕切板との間に配設する際において、当該密閉用のパ ッキン部材の、上仕切板と前記下仕切板との間に配設する配設作業を容易かつ迅 速に行うことができるとともに、前記上仕切板と前記下仕切板との機械的な強度 が充分なものとすることができる電子楽器を提供することを目的とする。 By the way, in the case of the above-mentioned conventional electronic musical instrument, a partition plate member for acoustically separating the upper case and the lower case is provided between the upper case and the lower case. Since it is possible to prevent sound leakage to the keyboard side attached to a part of the upper case and to prevent resonance of the main case due to sound leakage, the partition plate member is thus Since this is installed between the upper case and the lower case, not only the weight of the entire electronic musical instrument increases, but also a partition plate member must be separately manufactured and assembled. Therefore, the cost is increased and the assembly work is complicated. Therefore, recently, not only the weight of the entire electronic musical instrument has been reduced, but also a partition plate member has not been separately manufactured. Therefore, the cost is not increased and the assembly work is not complicated. We have proposed an electronic musical instrument that can prevent sound leakage to the keyboard attached to the keyboard and resonance of the body case due to sound leakage. The electronic musical instrument according to this proposal has a main body case formed by combining an upper case with an open lower part and a lower case with an open upper part, and one of the upper case and the upper case. And a speaker attached to a speaker mounting portion formed on a portion of the upper case other than the portion where the keyboard is attached, and a speaker attached to the keyboard. An upper partition plate integrally formed on the speaker mounting portion so as to surround a side portion of the speaker, and a side of the speaker at a position of the lower case facing the upper partition plate. A lower partition plate integrally formed so as to surround the portion, and a sealing packing member disposed between the upper partition plate and the lower partition plate. However, when disposing the sealing packing member between the upper partition plate and the lower partition plate, while positioning the sealing packing member between the upper partition plate and the lower partition plate, However, there is a problem in that the arrangement work is complicated and the mechanical strength between the upper partition plate and the lower partition plate is not yet sufficient. The present invention has been made in view of such conventional problems, and when the sealing packing member is disposed between the upper partition plate and the lower partition plate, the sealing packing member is , Which can be easily and quickly arranged between the upper partition plate and the lower partition plate, and has sufficient mechanical strength between the upper partition plate and the lower partition plate. It aims at providing the electronic musical instrument which can be.
【0004】[0004]
こうした課題を解決するために、この考案は、下方部が開放された上ケ−スと 上方部が開放された下ケ−スとを組み合わせて構成された本体ケ−スと、前記上 ケ−ス上の一部に取り付けられた鍵盤と、前記上ケ−スのうち、前記鍵盤が取り 付けられている部分以外の他の部分に形成されたスピ−カ取付部に取り付けられ たスピ−カと、前記スピ−カ取付部に、前記スピ−カの側部を取り囲むように一 体形成された上仕切板と、この上仕切板と対向する前記下ケ−スの位置に、前記 スピ−カの側部を取り囲むように一体形成された下仕切板と、この上仕切板と前 記下仕切板との間に配設された密閉用のパッキン部材とを備えている。前記上仕 切板と前記下仕切板との少なくとも一方の両側面には、前記パッキン部材の外周 を位置決めるとともに、前記上仕切板と前記下仕切板との少なくとも一方の機械 的な強度を補強するための補強用の突部を形成している。 In order to solve these problems, the present invention relates to a main body case formed by combining an upper case with an open lower part and a lower case with an open upper part, and the upper case. Keyboard mounted on a part of the upper case and a speaker mounted on a speaker mounting portion formed on a part of the upper case other than the part where the keyboard is mounted. And an upper partition plate integrally formed on the speaker mounting portion so as to surround a side portion of the speaker, and the speaker at the position of the lower case facing the upper partition plate. It comprises a lower partition plate integrally formed so as to surround the side of the mosquito, and a sealing packing member arranged between the upper partition plate and the lower partition plate. The outer periphery of the packing member is positioned on both side surfaces of at least one of the upper partition plate and the lower partition plate, and the mechanical strength of at least one of the upper partition plate and the lower partition plate is reinforced. To form a reinforcing projection for
【0005】[0005]
【作用】 この考案によれば、上ケ−スのうち、鍵盤が取り付けられている部分以外の他 の部分に形成されたスピ−カ取付部に、スピ−カの側部を取り囲むように上仕切 板を一体形成するとともに、この上仕切板と対向する前記下ケ−スの位置に、前 記スピ−カの側部を取り囲むように下仕切板を一体形成し、さらに、これら上仕 切板および下仕切板の間に、密閉用のパッキン部材を配設しているので、この密 閉用のパッキン部材により、前記上仕切板と前記下仕切板とで形成されたスピ− カ収容部の内部は、完全に密閉状態となり、このため、特別に、上仕切板および 下仕切板の間を音響的に仕切る仕切板部材を配置することなく、上ケ−スの一部 に取り付けられている鍵盤側への音漏れの防止や音漏れに起因する本体ケ−スの 共振防止を図ることができる。また、前記上仕切板と前記下仕切板との少なくと も一方の両側面には、補強用の突部が形成されているので、前記パッキン部材の 外周を位置決めすることができるとともに、前記上仕切板と前記下仕切板との少 なくとも一方の機械的な強度を補強することができる。According to the present invention, the speaker mounting portion formed on the upper case other than the keyboard mounting portion surrounds the side portion of the speaker. The partition plate is integrally formed, and at the position of the lower case facing the upper partition plate, the lower partition plate is integrally formed so as to surround the side portion of the speaker, and further, the upper partition plate is formed. Since the packing member for sealing is disposed between the plate and the lower partition plate, the inside of the speaker accommodating portion formed by the upper partition plate and the lower partition plate is formed by the packing member for sealing. Is completely sealed, and therefore, without specially placing a partition plate member that acoustically separates the upper partition plate and the lower partition plate from each other, to the keyboard side attached to a part of the upper case. Sound leakage and the resonance of the body case caused by sound leakage. It can be stopped. Also, since reinforcing protrusions are formed on both side surfaces of at least one of the upper partition plate and the lower partition plate, the outer periphery of the packing member can be positioned and the upper partition plate can be positioned. The mechanical strength of at least one of the partition plate and the lower partition plate can be reinforced.
【0006】[0006]
以下、この考案を図示する実施例に基づいて説明する。 図1はこの考案の一実施例に係る電子楽器を示す分解斜視図、図2は図1に示 した電子楽器を組み立てた場合におけるスピ−カに沿う断面図、図3は下仕切板 9の周辺を拡大して示す要部斜視図、図4は下仕切板9の上部に10を配置した 状態を示す要部斜視図である。 Hereinafter, the present invention will be described based on illustrated embodiments. 1 is an exploded perspective view showing an electronic musical instrument according to an embodiment of the present invention, FIG. 2 is a sectional view taken along a speaker when the electronic musical instrument shown in FIG. 1 is assembled, and FIG. 3 is a lower partition plate 9. FIG. 4 is a perspective view of an essential part showing an enlarged periphery, and FIG.
【0007】 これら図1〜図4に示すように、この実施例に係る電子楽器では、下方部が開 放された上ケ−ス1と上方部が開放された下ケ−ス2とを組み合わせて構成され た本体ケ−ス3と、前記上ケ−ス1上の一部に取り付けられた鍵盤4と、前記上 ケ−ス1のうち、前記鍵盤4が取り付けられている鍵盤取付部5以外の他の部分 に形成されたスピ−カ取付部6、6に取り付けられたスピ−カ7、7と、前記各 スピ−カ取付部6、6に、前記スピ−カ7、7の側部を取り囲むように一体形成 された上仕切板8、8と、この上仕切板8、8と対向する前記下ケ−ス2の位置 に、前記スピ−カ7、7の側部を取り囲むように一体形成された下仕切板9、9 と、この下仕切板9、9と前記上仕切板8、8との間に配設された密閉用のパッ キン部材10と、前記各スピ−カ取付部6、6に取り付けられたバスレフポ−ト 11、11とを備えている。As shown in FIGS. 1 to 4, in the electronic musical instrument according to this embodiment, an upper case 1 whose lower part is open and a lower case 2 whose upper part is open are combined. A main body case 3 configured as described above, a keyboard 4 attached to a part of the upper case 1, and a keyboard attaching portion 5 of the upper case 1 to which the keyboard 4 is attached. Other than the speaker mounting portions 6 and 6 formed on the other portions, and the speaker mounting portions 6 and 6 on the speaker 7 and 7 side, respectively. The upper partition plates 8 and 8 integrally formed so as to surround the portion and the lower case 2 facing the upper partition plates 8 and 8 surround the side portions of the loudspeakers 7 and 7. Lower partition plates 9 and 9 formed integrally with the upper partition plate and the lower partition plates 9 and 9 and the upper partition plates 8 and 8 for sealing. And a bass reflex port 11, 11 attached to each of the speaker attachment portions 6, 6.
【0008】 前記上仕切板8、8と下仕切板9、9との間に配設された断面U字状の密閉用 のパッキン部材10は、図3および図7に示すように、ゴム材料や不織布等で全 体が環状に形成されており、このパッキン部材10による密閉作用により、前記 上仕切板8と前記下仕切板9とでスピ−カ収容部12の内部が完全密閉状態とな るようにしている。As shown in FIG. 3 and FIG. 7, the packing member 10 for sealing having a U-shaped cross section disposed between the upper partition plates 8 and 8 and the lower partition plates 9 and 9 is made of rubber material. The entire packing is formed of a ring or non-woven fabric into a ring shape, and the sealing action of the packing member 10 causes the upper partition plate 8 and the lower partition plate 9 to completely seal the interior of the speaker accommodating portion 12. I am trying to do it.
【0009】 前記上仕切板8、8と前記下仕切板9、9との両側面には、前記パッキン部材 10の外周を位置決めるとともに、前記上仕切板8、8と前記下仕切板9、9と の双方の機械的な強度を補強するために、所定の間隔をおいて複数の補強用の突 部である上部補強リブ15、下部補強リブ16が一体成形されている。この上部 補強リブ15、下部補強リブ16のうち、上仕切板8側に形成されている上部補 強リブ15の一端(下端)には、当該上仕切板8の一端(下端)よりも突出して いる位置決め部15aが形成されている。他方、逆に、下仕切板9側に形成され ている下部補強リブ16の一端(上端)には、当該下仕切板9の一端(上端)よ りも低い位置までしか突出していない位置固定部16aが形成されている。この ような形成されている上部補強リブ15と下部補強リブ16とにより、前記上仕 切板8と下仕切板9との間に配設されたパッキン部材10が上下方向から互いに 挟持されるようになっている。また、前記下ケ−ス2の内側面には、下ケ−ス2 の全体の機械的な強度を高めるための多数の補強リブ13が格子状に一体形成さ れている。The outer peripheries of the packing members 10 are positioned on both side surfaces of the upper partition plates 8 and 8 and the lower partition plates 9 and 9, and the upper partition plates 8 and 8 and the lower partition plate 9, In order to reinforce the mechanical strength of both 9, the upper reinforcing ribs 15 and the lower reinforcing ribs 16 which are a plurality of reinforcing protrusions are integrally formed at predetermined intervals. Of the upper reinforcing ribs 15 and the lower reinforcing ribs 16, one end (lower end) of the upper reinforcing rib 15 formed on the upper partition plate 8 side projects more than one end (lower end) of the upper partition plate 8. The positioning portion 15a is formed. On the other hand, conversely, a position fixing portion that protrudes only to a position lower than one end (upper end) of the lower partition plate 9 at one end (upper end) of the lower reinforcing rib 16 formed on the lower partition plate 9 side. 16a is formed. With the upper reinforcing ribs 15 and the lower reinforcing ribs 16 formed in this way, the packing member 10 arranged between the upper partition plate 8 and the lower partition plate 9 is sandwiched from the vertical direction. It has become. Further, on the inner surface of the lower case 2, a large number of reinforcing ribs 13 for increasing the mechanical strength of the entire lower case 2 are integrally formed in a lattice shape.
【0010】 前記上ケ−ス1および下ケ−ス2は、プラスチック材料で形成されており、こ れら上ケ−ス1および下ケ−ス2の外周縁には、上部嵌合部1a、下部嵌合部2 aが形成されている。これら上部嵌合部1a、下部嵌合部2aの間には、前記パ ッキン部材10と同様なパッキン部材10Aが配設されており、このパッキン部 材10Aによる密閉作用により、前記上部嵌合部1aと前記下部嵌合部2aとで 上ケ−ス1と2との内部が完全密閉状態となっている。また、前記バスレフポ− ト11、11は、一端が前記上仕切板8、8と前記下仕切板9、9とで形成され たスピ−カ収容部12の内部に開口し、他端が前記上ケ−ス1の外部に開口して いる。The upper case 1 and the lower case 2 are made of a plastic material, and the upper fitting portion 1 a is formed on the outer peripheral edge of the upper case 1 and the lower case 2. , The lower fitting portion 2a is formed. A packing member 10A similar to the packing member 10 is disposed between the upper fitting portion 1a and the lower fitting portion 2a, and the upper fitting portion is sealed by the packing member 10A. The inside of the upper cases 1 and 2 is completely sealed by 1a and the lower fitting portion 2a. In addition, the bass reflex ports 11 and 11 are open at one end into a speaker accommodating portion 12 formed by the upper partition plates 8 and 8 and the lower partition plates 9 and 9, and the other end is the upper part. It is open to the outside of Case 1.
【0011】 前記上ケ−ス1および下ケ−ス2のうち、上ケ−ス1の手前側には、左右方向 にほぼ全域にわたって前記鍵盤取付部5が、また、その後方側の表面には、各種 の操作スイッチ類を備えた操作パネル部1aが、さらに、後方側の左右には、前 述した各スピ−カ7、7やバスレフポ−ト11を取り付けるためのバスレフポ− ト取付部1cがそれぞれ形成されている。前記スピ−カ取付部6、6および前記 バスレフポ−タ取付部1cの上部には、網目状のネットが張られた音孔ネット体 14が固着されている。Of the upper case 1 and the lower case 2, on the front side of the upper case 1, the keyboard mounting portion 5 is provided over the entire area in the left-right direction, and on the rear surface thereof. Is an operation panel section 1a equipped with various operation switches, and further, on the left and right sides on the rear side, a bass reflex port attaching section 1c for attaching the above-mentioned speakers 7, 7 and the bass reflex port 11 to each other. Are formed respectively. A sound hole net body 14 in which a net-like net is stretched is fixed to the upper portions of the speaker mounting portions 6 and 6 and the bass reflex porter mounting portion 1c.
【0012】 次に、前述した上ケ−ス1、下ケ−ス2、鍵盤4、スピ−カ7等の組立て手順 について説明する。 まず、上ケ−ス1の各スピ−カ取付部6、6の内側に、それぞれスピ−カ7、 7をねじ止めにより取り付けるとともに、上ケ−ス1の手前に形成されている鍵 盤取付部5の内側に、鍵盤4および鍵盤シャ−シ40の基端を挿入した状態で、 これら鍵盤4および鍵盤シャ−シ40の基端をねじ41、41によりねじ止めす る。Next, a procedure for assembling the above-described upper case 1, lower case 2, keyboard 4, speaker 7 and the like will be described. First, the speakers 7 and 7 are attached to the insides of the speaker attachment portions 6 and 6 of the upper case 1 by screwing, respectively, and the keyboard is formed in front of the upper case 1. With the base ends of the keyboard 4 and the keyboard chassis 40 inserted inside the portion 5, the base ends of the keyboard 4 and the keyboard chassis 40 are screwed with screws 41, 41.
【0013】 次に、各上仕切板8、8と各下仕切板9、9との間に各密閉用のパッキン部材 10、10を配設するわけであるが、まず、図5に示すように、帯び状のパッキ ン部材10を下ケ−ス2側に形成されている下仕切板9の一方の側面上部に、パ ッキン部材10の下半分を貼布し、そのパッキン部材10の中央部から屈曲させ る。そして、図6に示すように、パッキン部材10を下仕切板9の上部全体に被 覆する。その後、図7に示すように、上ケ−ス1側に形成された上仕切板8の下 端を乗せる。すると、この上仕切板8の両側面には、それぞれ複数の位置決め部 15aが所定の間隔をおいて形成されているので、同図に示すように、それぞれ 各位置決め部15aの内側部により前記パッキン部材10の上部外周面が押さえ られることとなる。このため、特別な位置決め手段を用いることなく、各位置決 め部15aの位置決め作用により、パッキン部材10を各上仕切板8と下仕切板 9との間で、強固に挟み込むことができる。Next, the packing members 10 and 10 for sealing are arranged between the upper partition plates 8 and 8 and the lower partition plates 9 and 9. First, as shown in FIG. Then, the band-shaped packing member 10 is attached to the upper side of one side of the lower partition plate 9 formed on the lower case 2 side, and the lower half of the packing member 10 is pasted to the center of the packing member 10. Bend from the part. Then, as shown in FIG. 6, the packing member 10 is covered on the entire upper portion of the lower partition plate 9. Thereafter, as shown in FIG. 7, the lower end of the upper partition plate 8 formed on the upper case 1 side is placed. Then, since a plurality of positioning portions 15a are formed at predetermined intervals on both side surfaces of the upper partition plate 8, as shown in the figure, the packing portions are formed by the inner portions of the respective positioning portions 15a. The upper outer peripheral surface of the member 10 is pressed. Therefore, the packing member 10 can be firmly sandwiched between the upper partition plate 8 and the lower partition plate 9 by the positioning action of each positioning portion 15a without using a special positioning means.
【0014】 同様に、前述した上ケ−ス1、下ケ−ス2のそれぞれの外周部にも、図8に示 すように、上部嵌合部1a、下部嵌合部2aが形されているので、前述した場合 と同様に、帯び状のパッキン部材10Aを下ケ−ス2側に形成されている上部嵌 合部1aの外側の側面上部に、パッキン部材10Aの下半分を貼布し、そのパッ キン部材10Aの中央部から内側に屈曲させる。そして、図9に示すように、こ のパッキン部材10Aを下部嵌合部2aの上部全体に被覆する。Similarly, an upper fitting portion 1a and a lower fitting portion 2a are formed on the outer peripheral portions of the upper case 1 and the lower case 2 described above, as shown in FIG. Therefore, as in the case described above, the lower half of the packing member 10A is pasted on the outer side surface upper part of the upper fitting portion 1a formed on the lower case 2 side with the band-shaped packing member 10A. Then, the packing member 10A is bent inward from the center thereof. Then, as shown in FIG. 9, the packing member 10A covers the entire upper portion of the lower fitting portion 2a.
【0015】 その後、図10に示すように、上ケ−ス1側に形成された上部嵌合部1aを乗 せる。すると、この上部嵌合部1aの外側面には、位置決め部15aが形成され ているので、図10に示すように、位置決め部15aの内側部により、前記パッ キン部材10Aの上部と外周面とが同時に押さえられることとなる。このため、 特別な位置決め手段を用いることなく、各上部嵌合部1aと下部嵌合部2aとの 挟持作用により、1100を各上部嵌合部1aと下部嵌合部2aとの間で、強固 に挟み込むことができる。After that, as shown in FIG. 10, the upper fitting portion 1a formed on the upper case 1 side is placed. Then, since the positioning portion 15a is formed on the outer surface of the upper fitting portion 1a, as shown in FIG. 10, the inner portion of the positioning portion 15a causes the upper portion and the outer peripheral surface of the packing member 10A to contact with each other. Will be held at the same time. Therefore, without using any special positioning means, the holding action between the upper fitting portions 1a and the lower fitting portions 2a allows the 1100 to be firmly fixed between the upper fitting portions 1a and the lower fitting portions 2a. Can be sandwiched between.
【0016】 このようにして、前記上ケ−ス1を下ケ−ス2の上に載置した後、図示しない ねじを用いて、これら上ケ−ス1および下ケ−ス2を一体化する。すると、各パ ッキン部材10による密閉作用により、前記各上仕切板8、9と前記各下仕切板 9、9とで、完全密閉状態の各スピ−カ収容部12、12が形成されることとな るとともに、これらスピ−カ収容部12、12の内部には、上ケ−ス1のスピ− カ7、7に取り付けられている各スピ−カ7、7が収容されることとなる。After the upper case 1 is placed on the lower case 2 in this manner, the upper case 1 and the lower case 2 are integrated by using a screw (not shown). To do. Then, due to the sealing action of each packing member 10, each of the upper partition plates 8 and 9 and each of the lower partition plates 9 and 9 form each of the speaker storage portions 12 and 12 in a completely sealed state. At the same time, the respective loudspeakers 7, 7 attached to the loudspeakers 7, 7 of the upper case 1 are accommodated inside the loudspeaker accommodating portions 12, 12. ..
【0017】 このようにして組み立てられた電子楽器によれば、パッキン部材10による密 閉作用により、上ケ−ス1に一体形成された各上仕切板8と同じく下ケ−ス2に 一体形成された各下仕切板9、9とで各スピ−カ収容部12、12の内部が完全 密閉状態となるので、これらスピ−カ収容部12、12の内部に収容されている 各スピ−カ7、7の後部から発生された音が鍵盤4側に漏れるようなことがない 。According to the electronic musical instrument assembled in this way, the packing member 10 closes the upper case 1 so that the upper case 1 and the lower case 2 are integrally formed. Since the interior of each of the loudspeaker accommodating portions 12, 12 is completely sealed by the respective lower partition plates 9, 9, the respective loudspeakers accommodated in the respective loudspeaker accommodating portions 12, 12 are sealed. The sound generated from the rear of 7, 7 does not leak to the keyboard 4 side.
【0018】 また、前記下ケ−ス2の内側面には、多数の補強リブ13が格子状に一体形成 されており、また、同様に、前記各上仕切板8、8および下仕切板9、9の側壁 面は、多数の上部補強リブ15、15が高さ方向に所定の間隔をおいて一体形成 されているので、下ケ−ス2の全体の機械的な強度や各上仕切板8、8および下 仕切板9、9の全体の機械的な強度を高めることができる。このため、各スピ− カ7、7から発生された音の音圧により、上ケ−ス1や下ケ−ス2が共振するの を防止することができる。A large number of reinforcing ribs 13 are integrally formed on the inner surface of the lower case 2 in a grid pattern. Similarly, the upper partition plates 8 and 8 and the lower partition plate 9 are similarly formed. Since a large number of upper reinforcing ribs 15 and 15 are integrally formed on the side wall surfaces of the lower casings 9 at predetermined intervals in the height direction, the overall mechanical strength of the lower case 2 and the upper partition plates. It is possible to increase the mechanical strength of the whole of 8, 8 and the lower partition plates 9, 9. Therefore, it is possible to prevent the upper case 1 and the lower case 2 from resonating due to the sound pressure of the sounds generated from the respective speakers 7.
【0019】 さらに、前記各スピ−カ取付部6、6には、一端が前記上仕切板8、8と前記 下仕切板9、9とで形成されたスピ−カ収容部12の内部に開口し、他端が前記 上ケ−ス1の外部に開口しているバスレフポ−ト11、11が取り付けられてい るので、各スピ−カ7、7の後部から発生される音をこのバスレフポ−ト11、 11の中の共振周波数fよりも低い周波数の音がこのバスレフポ−ト11、11 内で位相反転し、各スピ−カ7、7の表面側から出る音と同相となって各スピ− カ7、7から放音されるので、低音感を増大させることができる。一方、前記共 振周波数fよりも高い周波数の音は、これらバスレフポ−ト11、11内で位相 反転しないので、逆相のまま各スピ−カ7、7から放音されるので、各スピ−カ 7、7の表面側から出る音により打ち消されることとなる。Further, each of the loudspeaker mounting portions 6 and 6 has an opening inside a loudspeaker accommodating portion 12 whose one end is formed by the upper partition plates 8 and 8 and the lower partition plates 9 and 9. However, since the bass reflex ports 11 and 11 having the other ends open to the outside of the upper case 1 are attached, the sounds generated from the rear portions of the respective loudspeakers 7 and 7 are transmitted to this bass reflex port. The sound of a frequency lower than the resonance frequency f in 11, 11 is phase-inverted in the bass reflex port 11, 11, and becomes in phase with the sound emitted from the surface side of each speaker 7, 7. Since the sound is emitted from the speakers 7, 7, the bass feeling can be increased. On the other hand, the sound having a frequency higher than the resonance frequency f is not inverted in phase in the bass reflex ports 11 and 11, and is thus emitted from the speakers 7 and 7 in the opposite phase. It will be canceled by the sound emitted from the front side of the mosquitoes 7.
【0020】 なお、この実施例では、前述した実施例における上部嵌合部1a、下部嵌合部 2aの形状の他、図11および図12に示すように、上部嵌合部1aと下部嵌合 部2aの双方に、上部突起1aと下部突起2bとを形成するようにしてもよい。 このように形成した場合には、上部嵌合部1aと下部嵌合部2aとの間に空隙が 生ずることがないので、楽音の発生時における、いわゆるビリツキ音の発生を未 然に防止することができるばかりでなく、上部嵌合部1aと下部嵌合部2aの双 方に、上部突起1aと下部突起2bとが形成されているので、これら上部突起1 aおよび下部突起2bの位置決め作用により、上部嵌合部1aと下部嵌合部2a との間に配設されたパッキン部材10を強固に固着することができる。また、各 上仕切板8、8、下仕切板9、9に形成されている多数の上部補強リブ15、下 部補強リブ16の形状は、この実施例のものに限定されない。In this embodiment, in addition to the shapes of the upper fitting portion 1a and the lower fitting portion 2a in the above-described embodiment, as shown in FIGS. 11 and 12, the upper fitting portion 1a and the lower fitting portion are The upper protrusion 1a and the lower protrusion 2b may be formed on both of the portions 2a. When formed in this way, there is no gap between the upper fitting portion 1a and the lower fitting portion 2a, so it is possible to prevent the occurrence of so-called flicker sounds when musical tones are generated. In addition to the above, since the upper protrusion 1a and the lower protrusion 2b are formed on both sides of the upper fitting portion 1a and the lower fitting portion 2a, the positioning action of the upper protrusion 1a and the lower protrusion 2b causes The packing member 10 arranged between the upper fitting portion 1a and the lower fitting portion 2a can be firmly fixed. The shapes of the upper reinforcing ribs 15 and the lower reinforcing ribs 16 formed on the upper partition plates 8 and 8 and the lower partition plates 9 and 9 are not limited to those of this embodiment.
【0021】[0021]
以上の説明から明らかなように、この考案によれば、上ケ−ス側に上仕切板を 一体形成するとともに、この上仕切板と対向する下ケ−スの位置に下仕切板を一 体形成し、また、これら上仕切板および下仕切板の間に、密閉用のパッキン部材 を配設するとともに、前記上仕切板と前記下仕切板との少なくとも一方の両側面 に、補強用の突部を形成しているので、この補強用の突部により、前記パッキン 部材の外周を位置決めすることができ、このため、密閉用のパッキン部材を上仕 切板と下仕切板との間に配設する際において、当該密閉用のパッキン部材の、上 仕切板と前記下仕切板との間に配設する配設作業を容易かつ迅速に行うことがで きるとともに、前記上仕切板と前記下仕切板との機械的な強度が充分なものとす ることができる。 As is clear from the above description, according to the present invention, the upper partition plate is integrally formed on the upper case side, and the lower partition plate is provided at the position of the lower case facing the upper partition plate. A sealing packing member is disposed between the upper partition plate and the lower partition plate, and a reinforcing protrusion is provided on at least one side surface of at least one of the upper partition plate and the lower partition plate. Since it is formed, the reinforcing projection allows the outer periphery of the packing member to be positioned. Therefore, the packing member for sealing is arranged between the upper partition plate and the lower partition plate. In this case, the work of disposing the sealing packing member between the upper partition plate and the lower partition plate can be performed easily and quickly, and the upper partition plate and the lower partition plate can be easily installed. Can have sufficient mechanical strength with
【図1】この考案の一実施例に係る電子楽器を示す分解
斜視図である。FIG. 1 is an exploded perspective view showing an electronic musical instrument according to an embodiment of the present invention.
【図2】図1に示した電子楽器を組み立てた場合におけ
るスピ−カに沿う断面図である。FIG. 2 is a cross-sectional view taken along a speaker when the electronic musical instrument shown in FIG. 1 is assembled.
【図3】下仕切板9の周辺を拡大して示す要部斜視図で
ある。FIG. 3 is a perspective view of an essential part showing an enlarged periphery of a lower partition plate 9.
【図4】下仕切板9の上部にパッキン部材10を配置し
た状態を示す要部斜視図である。FIG. 4 is a perspective view of relevant parts showing a state in which a packing member 10 is arranged on an upper part of a lower partition plate 9.
【図5】パッキン部材10を下仕切板9の上部で折り曲
げている状態を示す要部断面図である。FIG. 5 is a cross-sectional view of essential parts showing a state in which the packing member 10 is bent at the upper part of the lower partition plate 9.
【図6】下仕切板9の上部に配設されたパッキン部材1
0上に、上仕切板8を乗せる前の状態を示す要部断面図
である。FIG. 6 is a packing member 1 arranged on an upper part of a lower partition plate 9.
It is a principal part sectional view which shows the state before putting the upper partition plate 8 on 0.
【図7】下仕切板9の上部に配設されたパッキン部材1
0上に、上仕切板8を乗せた後の状態を示す要部断面図
である。FIG. 7 is a packing member 1 arranged on an upper part of a lower partition plate 9.
It is a principal part sectional view which shows the state after putting the upper partition plate 8 on 0.
【図8】パッキン部材10Aを下部嵌合部2aの上部で
折り曲げている状態を示す要部断面図である。FIG. 8 is a cross-sectional view of relevant parts showing a state in which the packing member 10A is bent at the upper portion of the lower fitting portion 2a.
【図9】下部嵌合部2aの上部に配設されたパッキン部
材10A上に、上部嵌合部1aを乗せる前の状態を示す
要部断面図である。FIG. 9 is a cross-sectional view of essential parts showing a state before the upper fitting portion 1a is placed on the packing member 10A arranged above the lower fitting portion 2a.
【図10】下部嵌合部2aの上部に配設されたパッキン
部材10A上に、上部嵌合部1aを乗せた後の状態を示
す要部断面図である。FIG. 10 is a cross-sectional view of essential parts showing a state after the upper fitting portion 1a is placed on the packing member 10A arranged above the lower fitting portion 2a.
【図11】下部嵌合部2a、下部嵌合部2aの他の実施
例を拡大して示す要部断面図である。FIG. 11 is an enlarged cross-sectional view of a lower fitting part 2a and another embodiment of the lower fitting part 2a.
【図12】図11に示した下部嵌合部2a、下部嵌合部
2aを組み合わせた状態を示す断面図である。12 is a cross-sectional view showing a state in which the lower fitting portion 2a and the lower fitting portion 2a shown in FIG. 11 are combined.
1 上ケ−ス 2 下ケ−ス 3 本体ケ−ス 4 鍵盤 5 鍵盤取付部 6 スピ−カ取付部 7 スピ−カ 8 上仕切板 9 下仕切板 10、10A パッキン部材 15 上部補強リブ 16 下部補強リブ 1 Upper case 2 Lower case 3 Main body case 4 Keyboard 5 Keyboard mounting part 6 Speaker mounting part 7 Speaker 8 Upper partition plate 9 Lower partition plate 10, 10A Packing member 15 Upper reinforcing rib 16 Lower part Reinforcing rib
Claims (1)
開放された下ケ−スとを組み合わせて構成された本体ケ
−スと、 前記上ケ−ス上の一部に取り付けられた鍵盤と、 前記上ケ−スのうち、前記鍵盤が取り付けられている部
分以外の他の部分に形成されたスピ−カ取付部に取り付
けられたスピ−カと、 前記スピ−カ取付部に、前記スピ−カの側部を取り囲む
ように一体形成された上仕切板と、 この上仕切板と対向する前記下ケ−スの位置に、前記ス
ピ−カの側部を取り囲むように一体形成された下仕切板
と、 この上仕切板と前記下仕切板との間に配設された密閉用
のパッキン部材とを備え、 前記上仕切板と前記下仕切板との少なくとも一方の両側
面に、前記パッキン部材の外周を位置決めるとともに、
前記上仕切板と前記下仕切板との少なくとも一方の機械
的な強度を補強するために所定の間隔をおいて複数の補
強用の突部を形成したことを特徴とする電子楽器。1. A main body case constituted by combining an upper case having an open lower portion and a lower case having an open upper portion, and attached to a part of the upper case. And a speaker attached to a speaker attachment portion formed on a portion of the upper case other than the portion to which the keyboard is attached, and the speaker attachment portion. And an upper partition plate integrally formed so as to surround the side portion of the speaker, and an integrally formed so as to surround the side portion of the speaker at a position of the lower case facing the upper partition plate. A formed lower partition plate and a sealing packing member arranged between the upper partition plate and the lower partition plate, wherein both side surfaces of at least one of the upper partition plate and the lower partition plate In addition to positioning the outer periphery of the packing member,
An electronic musical instrument characterized in that a plurality of protrusions for reinforcement are formed at predetermined intervals to reinforce the mechanical strength of at least one of the upper partition plate and the lower partition plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3904592U JPH0594893U (en) | 1992-05-15 | 1992-05-15 | Electronic musical instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3904592U JPH0594893U (en) | 1992-05-15 | 1992-05-15 | Electronic musical instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0594893U true JPH0594893U (en) | 1993-12-24 |
Family
ID=12542155
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3904592U Pending JPH0594893U (en) | 1992-05-15 | 1992-05-15 | Electronic musical instrument |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0594893U (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006304236A (en) * | 2005-04-25 | 2006-11-02 | Pioneer Electronic Corp | Loudspeaker apparatus |
US10418010B2 (en) | 2016-01-20 | 2019-09-17 | Casio Computer Co., Ltd. | Device case, connector, and electronic musical instrument |
JP2021015253A (en) * | 2019-07-16 | 2021-02-12 | カシオ計算機株式会社 | Electronic musical instrument |
-
1992
- 1992-05-15 JP JP3904592U patent/JPH0594893U/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006304236A (en) * | 2005-04-25 | 2006-11-02 | Pioneer Electronic Corp | Loudspeaker apparatus |
JP4588523B2 (en) * | 2005-04-25 | 2010-12-01 | パイオニア株式会社 | Speaker unit fixing structure and speaker device |
US10418010B2 (en) | 2016-01-20 | 2019-09-17 | Casio Computer Co., Ltd. | Device case, connector, and electronic musical instrument |
JP2021015253A (en) * | 2019-07-16 | 2021-02-12 | カシオ計算機株式会社 | Electronic musical instrument |
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