JPS63163398A - Sound board - Google Patents
Sound boardInfo
- Publication number
- JPS63163398A JPS63163398A JP61313536A JP31353686A JPS63163398A JP S63163398 A JPS63163398 A JP S63163398A JP 61313536 A JP61313536 A JP 61313536A JP 31353686 A JP31353686 A JP 31353686A JP S63163398 A JPS63163398 A JP S63163398A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- resin
- laminate
- tone
- reinforcing fibers
- 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
- 239000000463 material Substances 0.000 claims description 38
- 229920005989 resin Polymers 0.000 claims description 28
- 239000011347 resin Substances 0.000 claims description 28
- 239000012783 reinforcing fiber Substances 0.000 claims description 22
- 230000001681 protective effect Effects 0.000 claims description 19
- 238000010030 laminating Methods 0.000 claims description 10
- 239000000835 fiber Substances 0.000 description 14
- 238000000465 moulding Methods 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 8
- 230000001070 adhesive effect Effects 0.000 description 8
- 239000003822 epoxy resin Substances 0.000 description 5
- 229920000647 polyepoxide Polymers 0.000 description 5
- 229920000049 Carbon (fiber) Polymers 0.000 description 4
- 239000012790 adhesive layer Substances 0.000 description 4
- 239000004917 carbon fiber Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002243 precursor Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920006337 unsaturated polyester resin Polymers 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000009527 percussion Methods 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- FRIBMENBGGCKPD-UHFFFAOYSA-N 3-(2,3-dimethoxyphenyl)prop-2-enal Chemical compound COC1=CC=CC(C=CC=O)=C1OC FRIBMENBGGCKPD-UHFFFAOYSA-N 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- YIVJZNGAASQVEM-UHFFFAOYSA-N Lauroyl peroxide Chemical compound CCCCCCCCCCCC(=O)OOC(=O)CCCCCCCCCCC YIVJZNGAASQVEM-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- -1 if available Polymers 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
「産業上の利用分野」
この発明は、打楽器用の音板に関し、強化用繊維を一方
向に配向し上記強化用繊維の配向方向と同方向に延びる
空洞を形成した繊維強化樹脂製板材を複数積層一体化し
てなる積層物の積層方向および上記板材の空洞の長手方
向に共に沿う一面に保護シートを被覆したことにより、
音板の［Ｉｉ的強度を向上するようにしたものである。[Detailed Description of the Invention] "Industrial Application Field" This invention relates to a tone plate for a percussion instrument, in which reinforcing fibers are oriented in one direction and a cavity is formed that extends in the same direction as the reinforcing fibers. By covering one surface of the laminate formed by laminating and integrating a plurality of fiber-reinforced resin boards in the stacking direction and the longitudinal direction of the cavity of the board with a protective sheet,
This is designed to improve the strength of the sound plates.
「従来の技術」
近年、シロホン、マリンバ、ビブラホンなどの打楽器用
の音板としては、気象条件等によって音色、音階が変化
し易い木製音板に代わって、繊維強化樹脂製のものが種
々提案されている。``Prior Art'' In recent years, various tone plates made of fiber-reinforced resin have been proposed for percussion instruments such as xylophones, marimbas, and vibraphones, in place of wooden tone plates whose timbre and scale change easily depending on weather conditions. ing.
このような強化繊維樹脂製の音板には、例えば特願昭５
９−１１０１２４号（特開昭６０−２５４０９１号公報
）に示されたものがある。For example, a sound plate made of reinforced fiber resin has a patent application filed in 1973.
There is one shown in No. 9-110124 (Japanese Unexamined Patent Publication No. 60-254091).
この音板は、第４図に示すように断面矩形状の繊維強化
樹脂製板材（以下、板材と略称する。）■・・・を複数
積層一体化してなるものである。板材ｌは、樹脂マトリ
ックス中に強化用ｍ Ｉ（ｔを一方向に配向したうえ、
分散したもので、積層方向に直交しかつ板材ｌの長手方
向に沿う一面には、強化用繊維の配向方向と同方向に延
びる多数の溝２・・・が形成されている。これら溝２・
・・は、例えば板材ｌの成形中に引抜き成形法により形
成されるか、あるいは板材ｌの成形後に切削加工により
形成される。そして、この音板は、板材夏のｉｆｆ ２
・・・が形成された面と他の板材ｌの溝のない面とを重
ね合わせ、これらを接着固定して複数の板材ｌ・・・を
積層一体化することによって得られる。As shown in FIG. 4, this tone plate is made by laminating and integrating a plurality of fiber-reinforced resin plates (hereinafter abbreviated as plates) having a rectangular cross section. The plate material l has reinforcing m I (t) oriented in one direction in a resin matrix, and
A large number of grooves 2 are formed in one surface perpendicular to the stacking direction and along the longitudinal direction of the plate l, which extends in the same direction as the orientation direction of the reinforcing fibers. These grooves 2・
... are formed, for example, by a pultrusion method during molding of the plate material l, or by cutting after molding of the plate material l. And this tone board is board material summer if 2
It is obtained by overlapping the surface on which ... is formed with the groove-free surface of another plate material l, and bonding and fixing these, thereby laminating and integrating a plurality of plate materials l....
このような音板は、溝つき板材ｌ・・・を積層一体化し
て得られるものであるので、容゛昌に製造でき、よって
製造コストの低減が図れるものとなる。Since such a tone plate is obtained by laminating and integrating the grooved plate materials l..., it can be manufactured in a variety of ways, and thus the manufacturing cost can be reduced.
「発明が解決しようとする問題点」
しかしながら、このような音板では、板材１・・・の積
層方向に直交しかつ板材ｌ・・・の長手方向に沿う一側
面３・・・（第４図において上面）を演奏時における被
打撃面とした場合、この被打撃面からの肉′厚が溝２・
・・の上方部分で薄くなっており、この肉薄部分の被打
撃面に長期間に互って演奏による衝撃を加えると、漸次
その被打撃面表面が割れることがあり、音質が悪化して
しまう欠点があった。"Problems to be Solved by the Invention" However, in such a tone plate, one side surface 3 (fourth If the upper surface in the figure is the surface to be hit during performance, the thickness from this surface to be hit is the groove 2.
・It is thinner in the upper part, and if the impact of playing is applied to the hit surface of this thin part over a long period of time, the surface of the hit surface may gradually crack and the sound quality will deteriorate. There were drawbacks.
「問題点を解決するための手段」
この発明の音板では、強化用繊維を一方向に配向し上記
強化用繊維の配向方向と同方向に延びる空洞を形成した
板材を段数積層一体化してなる積層物の積層方向および
上記板材の空洞の長手方向に共に沿う一面に、保護シー
トを被覆することをその解決手段とした。"Means for Solving the Problems" The tone plate of the present invention is made by laminating and integrating a number of plates in which reinforcing fibers are oriented in one direction and cavities are formed that extend in the same direction as the reinforcing fibers. The solution was to cover one surface of the laminate along the stacking direction of the laminate and the longitudinal direction of the cavity of the plate material with a protective sheet.
「作用 」
積層物の積層方向および板材の空洞の長手方向に共に沿
う一面に保護シートが被覆されているので、この保護シ
ートにより積層物に加えられる演奏時の衝撃が和らげら
れることから、積層物の機械的強度が高められる。"Function" Since the protective sheet covers both the stacking direction of the laminate and the longitudinal direction of the cavity of the board material, this protective sheet softens the impact applied to the laminate during performance. The mechanical strength of the material is increased.
「実施例」
第１図は、この発明の音板の一例を示すもので、図中符
号４はこの発明に係る音板である。この音板４は、繊維
強化樹脂製板材（以下、板材と略称する。）５・・・が
複数積層一体化されてなる積層物６と、繊維強化樹脂製
の保護シート７とからなるものである。Embodiment FIG. 1 shows an example of a tone plate according to the present invention, and reference numeral 4 in the figure indicates the tone plate according to the present invention. This tone plate 4 consists of a laminate 6 formed by laminating and integrating a plurality of fiber-reinforced resin plate materials (hereinafter abbreviated as plate materials) 5, and a protective sheet 7 made of fiber-reinforced resin. be.
上記の板材５は、樹脂マトリックス中に強化用繊維を一
方向に配向したうえ、分散した断面矩形状の部材である
。The plate material 5 described above is a member having a rectangular cross section in which reinforcing fibers are oriented in one direction and dispersed in a resin matrix.
上記強化用繊維としては、ガラス繊維、カーボン繊維、
アラミツド繊維などの長繊維が用いられ、特にガラス繊
維、高弾性カーボン繊維が好適に用いられる。また、炭
化ケイ素、窒化ホウ素などの短繊維を組み合わせて用い
ることもできる。The reinforcing fibers mentioned above include glass fiber, carbon fiber,
Long fibers such as aramid fibers are used, and glass fibers and high modulus carbon fibers are particularly preferred. Further, short fibers such as silicon carbide and boron nitride may be used in combination.
また、樹脂としては、エポキシ樹脂、不飽和ポリエステ
ル樹脂、フェノール樹脂などの熱硬化性樹脂が挙げられ
、強化用繊維と樹脂との接着性を考慮して、例えば上記
の強化用繊維がガラス繊維であれば不飽和ポリエステル
樹脂、カーボン繊維であればエポキシ樹脂の組み合わせ
が好ましい。In addition, examples of the resin include thermosetting resins such as epoxy resins, unsaturated polyester resins, and phenol resins. Considering the adhesion between the reinforcing fibers and the resin, for example, the above reinforcing fibers may be made of glass fibers. A combination of unsaturated polyester resin, if available, and epoxy resin, if carbon fiber is preferred, is preferred.
上記強化用繊維の配合ｍは、通常３０〜７０体積％、好
ましくは５０〜６０体積％とされる。３０体積％未満で
あれば、樹脂に対する機械的補強が充分でなく、ヤング
率の低い強化樹脂しか得られず、７０体積％を越えると
、繊維と樹脂との濡れが悪化し、均質な強化樹脂が得ら
れない。そして、樹脂と強化用繊維とからなる組成物の
ヤング率が２０００ ｋＷ／ ａｍ”以上となるように
、その配合ｍおよびその種類が適宜選択される。The blend m of the reinforcing fibers is usually 30 to 70% by volume, preferably 50 to 60% by volume. If it is less than 30% by volume, the mechanical reinforcement for the resin will not be sufficient and only a reinforced resin with a low Young's modulus will be obtained. If it exceeds 70% by volume, the wetting of the fibers and resin will deteriorate and a homogeneous reinforced resin will not be obtained. is not obtained. Then, the composition m and the type thereof are appropriately selected so that the Young's modulus of the composition consisting of the resin and the reinforcing fiber is 2000 kW/am'' or more.
そして、このような板材５には、その内部に多数の空洞
３・・・が形成されている。この空洞８は、されており
、かつこの例にあっては、板材１の長手方向に平行に形
成されている。この空洞８の断面形状は、第１図に示す
ような丸状以外に角状などの任意の形状のものでよい。A large number of cavities 3 are formed inside the plate 5. This cavity 8 is formed parallel to the longitudinal direction of the plate 1 in this example. The cross-sectional shape of the cavity 8 may be any shape other than the round shape shown in FIG. 1, such as a square shape.
また、この空洞Ｓ・・・の上記板材５の長手方向に直交
する断面での断面積の総和は、板材５の上記同断面での
断面積に対して５〜６０％の範囲内で定められ、音板４
に要求される特性に応じて空洞８の断面積およびその個
数などを調整、して決められる。この断面積の比が５％
未満では、音板４の音色に木質感が付与されず、６０％
を越えると、音の伸びが悪化する不都合が生じる。Further, the total cross-sectional area of the cavity S in a cross section perpendicular to the longitudinal direction of the plate material 5 is determined within a range of 5 to 60% of the cross-sectional area of the plate material 5 in the same cross section. , tone plate 4
The cross-sectional area and number of cavities 8 can be adjusted and determined according to the characteristics required for the purpose. The ratio of this cross-sectional area is 5%
If it is less than 60%, the tone of tone plate 4 will not have a woody feel.
If it exceeds this, there will be an inconvenience that the sound extension will deteriorate.
上記の積層物６は、複数枚の板材５・・・を積層一体化
してなるもので、この積層一体化には、接着剤が用いら
れる。この接着剤としては、接着強度および接着固化後
の接着剤層の体積変化が小さい点などを考慮してエポキ
シ樹脂系、レゾルシノール系の接着剤などが挙げられる
。また、接着剤層自体の剛性を高めるため、接着剤層中
にガラス繊い。そして、このような積層物６の積層方向
に直交する一面には、音板４の寸法を調整するための矩
形状の補助板材９が接着固定されている。The above-mentioned laminate 6 is formed by laminating and integrating a plurality of plate materials 5, and an adhesive is used for this lamination. Examples of this adhesive include epoxy resin-based adhesives and resorcinol-based adhesives, taking into consideration adhesive strength and small volume change of the adhesive layer after solidification. In addition, in order to increase the rigidity of the adhesive layer itself, there is glass fiber in the adhesive layer. A rectangular auxiliary plate member 9 for adjusting the dimensions of the tone plate 4 is adhesively fixed to one surface of the laminate 6 perpendicular to the stacking direction.
また、積層物６の積層方向および上記板材５の空洞８・
・・の長手方向に共に沿う一側面には、強化用繊維を樹
脂中に含浸、分散した状態で加熱加圧成形等により得ら
れる保護シート７が接着剤層を介して被覆されている。In addition, the stacking direction of the laminate 6 and the cavity 8 of the plate material 5
A protective sheet 7 obtained by hot-pressure molding or the like with reinforcing fibers impregnated and dispersed in a resin is coated on one side along the longitudinal direction with an adhesive layer interposed therebetween.
また、この例の保護シート７は、強化用繊維として一方
向に配向する場合と織物を用いる場合があり、いずれの
場合も、保護シート７の繊維の方向は、上記積層物６の
６板材５・・・の繊維の配向方向と交差しているものが
含まれるように、積層物６に保護シート７が被覆される
ことが望ましく、さらに上記二つの繊維の配向方向が互
いに直交することが好ましい。すなわち、保護シート７
か被覆された積層物６は、板材５・・・の繊維の配向方
向と保護シート７の繊維の配向方向との両方向に沿う機
械的強度に侵れた乙のとなる。In addition, the protective sheet 7 of this example may have reinforcing fibers oriented in one direction or may use a woven fabric. In either case, the direction of the fibers of the protective sheet 7 is It is desirable that the laminate 6 is covered with a protective sheet 7 so that the orientation direction of the two fibers is included, and it is further preferred that the orientation directions of the two fibers are orthogonal to each other. . That is, the protective sheet 7
The coated laminate 6 has a mechanical strength that has been eroded by the mechanical strength in both directions of the fiber orientation direction of the plate materials 5 and the fiber orientation direction of the protective sheet 7.
なお、この例では、保護シート７を繊維強化樹脂製とし
ているが、例えば耐衝撃性のよいポリカーボネート樹脂
、ポリアミド樹脂、ポリアクリレート樹脂などの非強化
の熱可塑性樹脂を用いても同様の効果が得られる。In this example, the protective sheet 7 is made of fiber-reinforced resin, but the same effect can be obtained by using non-reinforced thermoplastic resin, such as polycarbonate resin, polyamide resin, or polyacrylate resin, which has good impact resistance. It will be done.
また、積層物６の保護シート７が被覆された面と反対側
の面は、調律を目的としたえぐり加工により略半円柱状
にえぐられている。Further, the surface of the laminate 6 opposite to the surface covered with the protective sheet 7 is hollowed out into a substantially semi-cylindrical shape for the purpose of tuning.
次に、このような構成の音板４を製造する方法の一例に
ついて説明する。Next, an example of a method for manufacturing the tone plate 4 having such a configuration will be described.
まず、板材５を引抜き成形法により製造する。First, the plate material 5 is manufactured by a pultrusion method.
すなわち、例えばガラスロービングなどの強化用繊維を
その繊維方向が一方向となるように引揃える。次いで、
この一方向に引揃えられた強化用繊維を例えば未硬化状
態の不飽和ポリエステル樹脂などの熱硬化性樹脂液中に
浸漬させて樹脂を含浸した強化用繊維を得る。ここで、
上記樹脂中に例えばベンゾイルパーオキサイド、ラウロ
イルパーオキサイド、クメンハイドロパーオキサイドな
どの過酸化物硬化剤（樹脂１００重量部に対して０゜５
〜！、５ｆｆｉｆｆｉ部）、例えばステアリン酸亜鉛な
どの離型剤（樹脂１００重量部に対して１〜３重量部）
、例えば炭酸カルシウムなどの潤滑剤（樹脂１００重量
部に対して５〜５０重量部）などの添加剤を予め混合し
ておくことが好ましい。That is, for example, reinforcing fibers such as glass roving are aligned so that the fiber directions are unidirectional. Then,
The reinforcing fibers aligned in one direction are immersed in a liquid thermosetting resin such as an uncured unsaturated polyester resin to obtain reinforcing fibers impregnated with resin. here,
A peroxide curing agent such as benzoyl peroxide, lauroyl peroxide, cumene hydroperoxide (0.5% per 100 parts by weight of resin) is added to the above resin.
~! , 5ffiffi parts), a mold release agent such as zinc stearate (1 to 3 parts by weight per 100 parts by weight of resin)
It is preferable to mix in advance an additive such as a lubricant such as calcium carbonate (5 to 50 parts by weight per 100 parts by weight of the resin).
次いで、上記の樹脂含浸強化用繊維をその繊維の方向が
一方向となるように配向し、これを成形前駆体とする。Next, the above-mentioned resin-impregnated reinforcing fibers are oriented so that the fibers are oriented in one direction, and this is used as a molding precursor.
次いで、この成形前駆体をその繊維の配向方向に沿って
上記同方向に細長い円柱状の空洞形成用ダイに導き、こ
の空洞形成用ダイにより、成形前駆体の内部に成形方向
に沿って多数の空洞８・・・を形成する。次いで、この
成形前駆体を断面矩形状の外形形状規制用ダイに導くと
ともに、このダイの成形出口から外側に引抜いたのち、
直ちに上記ダイに連設された加熱用ダイにより熱硬化さ
せて第２図に示すような断面矩形状の板材５に成形する
。ここで、この空洞８・・・の板材５の長手方向（成形
方向）に直交する方向の断面における断面積の総和は、
前述したように板材５の上記同方向の断面における断面
積の５〜６０％の範囲一つの空洞８の断面積を可能な限
り大きいものとすることが望ましい。また、上記空洞８
は、断面矩形状の板材５の内部にその°長手方向に沿っ
てポーラ−等を用いて機械式に形成することもできる。Next, this molding precursor is guided into the elongated cylindrical cavity forming die in the same direction along the orientation direction of the fibers, and by this cavity forming die, a large number of holes are formed inside the molding precursor along the molding direction. A cavity 8... is formed. Next, this molded precursor is guided to an outer shape regulating die having a rectangular cross section, and is pulled out from the molding outlet of this die, and then
Immediately, it is thermally cured using a heating die connected to the above-mentioned die and formed into a plate material 5 having a rectangular cross section as shown in FIG. Here, the total cross-sectional area of the cavities 8 in the cross section in the direction perpendicular to the longitudinal direction (molding direction) of the plate material 5 is:
As mentioned above, it is desirable that the cross-sectional area of each cavity 8 be as large as possible, which is within the range of 5 to 60% of the cross-sectional area of the plate material 5 in the same direction. In addition, the cavity 8
can also be mechanically formed inside the plate material 5 having a rectangular cross section along its longitudinal direction using a polar material or the like.
次に、上記の板材５・・・を、第３図に示すように複数
枚（ここでは４枚）積層一体化することによって積層物
６とする。この例の積層物６は、その積層方向が各板材
５・・・の長手方向に直交する方向とされており、強化
用ａ維の配向方向である板材５・・・の長手方向の機械
的強度と積層方向の機械的強度とが共に優れたものとな
る。次いで、この積層物６の積層方向に直交する一面に
矩形状め補助板材９を接着固定する。ここで、上記板材
５・・・の積層一体化および積層物６への補助板材９の
固定には、前述したように接着剤による方法が好適であ
る。この積層物６における接着に際しては、各板材５・
・・の積層方向の両側面全面に接着剤を塗布できること
から、各板材５・・・を互いに強固に積層できる。Next, as shown in FIG. 3, a plurality of the above-mentioned plate materials 5 (four in this case) are laminated and integrated to form a laminate 6. In the laminate 6 of this example, the lamination direction is perpendicular to the longitudinal direction of each plate 5... Both strength and mechanical strength in the lamination direction are excellent. Next, a rectangular auxiliary plate material 9 is adhesively fixed to one surface of the laminate 6 perpendicular to the stacking direction. Here, as described above, the method using an adhesive is suitable for laminating and integrating the plate materials 5 and fixing the auxiliary plate material 9 to the laminate 6. When adhering this laminate 6, each plate material 5 and
Since the adhesive can be applied to the entire surfaces of both sides in the stacking direction, the plates 5 can be firmly stacked on each other.
一方一例えばカーボン繊維を未硬化状擦のエボキシ樹脂
液中に含浸してプリプレグを得、このプリプレグを加熱
加圧成形することによってシート状に成形して保護シー
ト７を得る。On the other hand, for example, a prepreg is obtained by impregnating carbon fibers in an uncured epoxy resin liquid, and this prepreg is molded into a sheet by heating and pressure molding to obtain the protective sheet 7.
次に、上記の積層物６の積層方向゛および上記板材５の
空洞８・・・の長手方向に共に沿う一側面（第３図にお
いて上面）６ａに、演奏時における被打撃面となる上記
保護シート７を例えばエポキシ樹脂系の接着剤を用いて
被覆する。Next, one side surface (the upper surface in FIG. 3) 6a along both the stacking direction of the laminate 6 and the longitudinal direction of the cavity 8 of the plate material 5 is provided with the above-mentioned protection which will be the surface to be hit during performance. The sheet 7 is coated with, for example, an epoxy resin adhesive.
次いで、この積層物６の一側面６ａの反対側の他側面に
、調律用にえぐり加工を施したのち、全体に塗装仕上げ
などの後加工を施すことによって、第１図に示すような
音板４を得る。Next, the other side surface opposite to the one side surface 6a of this laminate 6 is gouged for tuning, and the entire surface is subjected to post-processing such as painting, thereby producing a tone plate as shown in FIG. Get 4.
このようにして得られた音板４は、被打撃面に保護シー
ト７が設けられたものであるので、この保護シート７に
より積層物６に対する演奏時の打撃が和らげられること
から、被打撃面が破壊されることがなく、耐衝撃性など
の機械的強度に優れたものとなる。Since the tone plate 4 thus obtained has the protective sheet 7 provided on the hit surface, this protective sheet 7 softens the blow against the laminate 6 during performance. will not be destroyed and will have excellent mechanical strength such as impact resistance.
また、この音板４は、＃ａ維強化樹脂中に、強化用繊維
の配向方向と同方向に延びる空ａ＋］ ８・・・が多数
形成されたものであるので、これを打撃したとき、繊維
強化樹脂製音板に特有の音の伸びの良さと、木製音板に
固有の柔らかく、木質感に溢れた音色とを併せ持つもの
となる。In addition, this tone plate 4 has a large number of voids a+ ] 8... formed in the #a fiber reinforced resin that extend in the same direction as the orientation direction of the reinforcing fibers, so when it is struck, It combines the good sound extension characteristic of tone plates made of fiber-reinforced resin with the soft, wood-like tone characteristic of wooden tone plates.
「発明の効果」
以上説明したように、この発明の音板は、強化用繊維を
一方向に配向し上記強化用繊維の配向方向と同方向に延
びる空洞を形成した板材を複数積層一体化してなる積層
物の積層方向および上記板材の空洞の長手方向に共に沿
う一面に、保護シートを被覆したものであるので、次の
ような優れた効果が得られるものとなる。"Effects of the Invention" As explained above, the tone plate of the present invention is made by laminating and integrating a plurality of plate materials in which reinforcing fibers are oriented in one direction and cavities extending in the same direction as the reinforcing fibers are oriented. Since the protective sheet is coated on one surface along both the stacking direction of the laminate and the longitudinal direction of the cavity of the plate material, the following excellent effects can be obtained.
（１）積層物の積層方向および上記板材の空洞の長手方
向に共に沿う一面に被覆された保護シートにより、演奏
時の打撃による衝撃が和らげられることから、長期間使
用しても、被打撃面が破壊されることがなく、耐衝撃性
などの機械的強度に優れたものとなる。(1) The protective sheet coated on one side along both the stacking direction of the laminate and the longitudinal direction of the cavity of the plate material softens the impact caused by hits during performance, so even after long-term use, the will not be destroyed and will have excellent mechanical strength such as impact resistance.
〔２〕空洞の形成を引抜き成形により行なえば、空洞の
製造が容易に行なえ、製造コストの低減が図れるものと
なる。[2] If the cavity is formed by pultrusion molding, the cavity can be easily manufactured and the manufacturing cost can be reduced.
第１図は、こ、の発明の音板の一例を示す概略斜視図、
第２図は、この発明の音仮に用いられる板材を示す概略
構成図、
第３図は、この発明の音仮に用いられる板材を積層した
積層物を示す概略構成図、
第４図は、従来の音板の一例を示す概略構成図である。
４・・・音板、５・・・板材（繊維強化樹脂製板材）、
６・・・積層物、６ａ・・・−側面（積層物の一面）、
７・・・保護シート、８・・・空洞。Fig. 1 is a schematic perspective view showing an example of a tone plate of the present invention, Fig. 2 is a schematic configuration diagram showing a plate material used in the tone plate of the present invention, and Fig. 3 is a schematic perspective view showing an example of a tone plate of the present invention. FIG. 4 is a schematic diagram showing an example of a conventional tone plate. 4... Tone plate, 5... Board material (fiber reinforced resin board material),
6... laminate, 6a...-side (one side of the laminate),
7...Protection sheet, 8...Cavity.
Claims (1)
配向方向と同方向に延びる空洞が形成された繊維強化樹
脂製板材を複数積層一体化してなる積層物の積層方向お
よび上記板材の空洞の長手方向に共に沿う一面に、保護
シートが被覆されたことを特徴とする音板。The stacking direction of a laminate obtained by laminating and integrating a plurality of fiber-reinforced resin board materials in which reinforcing fibers are oriented in one direction and cavities extending in the same direction as the orientation direction of the reinforcing fibers and the cavities of the board materials. A tone plate characterized in that one side along the longitudinal direction is covered with a protective sheet.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61313536A JPS63163398A (en) | 1986-12-25 | 1986-12-25 | Sound board |
| US07/136,375 US4805513A (en) | 1986-12-25 | 1987-12-22 | Laminated FRP sound bar for percussive musical instruments |
| NL8703112A NL8703112A (en) | 1986-12-25 | 1987-12-23 | LAMINATED SOUND BAR OF FIBER REINFORCED PLASTICS FOR IMPACT INSTRUMENTS. |
| DE19873743687 DE3743687A1 (en) | 1986-12-25 | 1987-12-23 | SOUNDSTICK FOR PERFORMANCE INSTRUMENTS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61313536A JPS63163398A (en) | 1986-12-25 | 1986-12-25 | Sound board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63163398A true JPS63163398A (en) | 1988-07-06 |
Family
ID=18042499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61313536A Pending JPS63163398A (en) | 1986-12-25 | 1986-12-25 | Sound board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63163398A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5699656A (en) * | 1980-01-10 | 1981-08-11 | Nippon Musical Instruments Mfg | Sound board in fiber reinforcing foaming resin |
| JPS5910996A (en) * | 1982-07-10 | 1984-01-20 | ヤマハ株式会社 | Sound plate for musical instrument |
-
1986
- 1986-12-25 JP JP61313536A patent/JPS63163398A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5699656A (en) * | 1980-01-10 | 1981-08-11 | Nippon Musical Instruments Mfg | Sound board in fiber reinforcing foaming resin |
| JPS5910996A (en) * | 1982-07-10 | 1984-01-20 | ヤマハ株式会社 | Sound plate for musical instrument |
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