WO2016128629A1 - Bow for stringed musical instruments - Google Patents

Bow for stringed musical instruments Download PDF

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Publication number
WO2016128629A1
WO2016128629A1 PCT/FR2016/050003 FR2016050003W WO2016128629A1 WO 2016128629 A1 WO2016128629 A1 WO 2016128629A1 FR 2016050003 W FR2016050003 W FR 2016050003W WO 2016128629 A1 WO2016128629 A1 WO 2016128629A1
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WO
WIPO (PCT)
Prior art keywords
sheath
head
bow
musical instrument
bowed
Prior art date
Application number
PCT/FR2016/050003
Other languages
French (fr)
Inventor
Gilles SAURAIS
Vincent TRICOU
Sylvain TOCQUEC
Original Assignee
Saurais Gilles
Tricou Vincent
Tocquec Sylvain
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Saurais Gilles, Tricou Vincent, Tocquec Sylvain filed Critical Saurais Gilles
Publication of WO2016128629A1 publication Critical patent/WO2016128629A1/en

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Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10D—STRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; AEOLIAN HARPS; SINGING-FLAME MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
    • G10D3/00—Details of, or accessories for, stringed musical instruments, e.g. slide-bars
    • G10D3/16—Bows; Guides for bows; Plectra or similar playing means

Definitions

  • the invention relates to bows for bowed string instruments, that is to say in particular for violin, viola, cello and double bass.
  • It also relates to its manufacturing process, as well as the material used for its production.
  • bowstring instruments have traditionally been used as the material of the bow, the pernambuco (caesalpina eschinata), a tree species growing mainly in Brazil, whose wood is very hard, and of high density, and also of great resilience. It is particularly appreciated, also because of its dynamics, the possibility of working it like iron, the mesh of its fiber which makes it particularly resistant in bending, and its acoustic properties.
  • the invention therefore relates to a bow for bowed string instruments comprising a rod completed at one of its ends by a head, and at its other end by a rise, a lock of horsehair being stretched between the head and the rise.
  • the rod consists of a core made of palm fibers (arecacease), coated with a sheath made from carbon fibers.
  • dense palm fiber fibers are used for the core in order to achieve the required properties.
  • the invention consists in producing a hybrid bow combining at the same time a core of natural material, capable of conferring on the bow the acoustic properties required by the musicians, especially of high level, surrounded by a sheath carbon fiber, which brings dynamics and resilience, giving it mechanical strength. This creates a new composite material, developing mechanical and acoustic properties.
  • the sheath is monolayer and is advantageously constituted by a multi-filament braid.
  • This sheath is also associated with an epoxy resin, capable of promoting the adhesion of the sheath to the core.
  • longitudinal threads are introduced between the palm fiber core and the carbon fiber sheath, also made of carbon fibers, but advantageously of greater density than those constituting the sheath. , in order to modify the dynamics or the resilience of the final material.
  • the rod receives a double braiding of carbon fibers over a distance of between 10 and 15 cm from the head.
  • This area known as the collar is often critical for the bows, as it undergoes significant constraints. It is also the main source of breakage of traditional bows.
  • Figure 1 is a schematic representation of a bow for bowed string instruments of the prior art.
  • Figure 2 is a schematic sectional representation of a first embodiment of the invention.
  • FIG. 3 is a schematic representation similar to Figure 2 of another embodiment of the invention. DETAILED DESCRIPTION OF THE INVENTION
  • a bow of conventional invoice but also according to the invention consists of a rod 1, at both ends of which is the head 2 preceded by the collar 7 on the one hand, and the octagon 8 on which is fixed the rise 4 on the other hand.
  • the wick 5 horsehair typically horse, having the purpose of rubbing the strings, including a violin for example.
  • the tension of the wick 5 is achieved at the level of the rise. 4 by sliding on the octagon 8.
  • the rod 1 is made in a hybrid manner, and basically comprises a core 10 made of dense palm fibers (Arecaceae), surrounded by a sheath 11 made of carbon fibers.
  • the wand is arched to give the desired shape to the bow.
  • a part Prior to the introduction of the characteristic sheath of the invention, a part is positioned, intended to be used later for the production of the head, in particular by molding.
  • the carbon fibers are braided around the core 10 so as to constitute the sheath 11.
  • This braiding can be carried out by any means, such as in particular a braider. A monolayer braid is thus obtained, coming into contact with the core 10.
  • the carbon fibers used typically have a linear density of 150 Tex.
  • the head is traditionally molded, preferably with resin.
  • the other steps of realization of the bow are performed later, in a known manner, so that it is not necessary here to detail. Briefly, these steps consist of the size of the head, the shape of the end of the octagonal rod to receive the rise and the mortise and then allow the adjustment of the tension of the wick.
  • longitudinal son 12 also made of carbon. These son may optionally have a higher titre or density than those constituting fibers of the sheath.
  • These son are oriented substantially parallel to the rod. The goal is to adjust the desired level of resilience of the bow. These son are positioned and pressed against the peripheral surface of the core 10 as the realization of the latter.
  • This bow has dynamic and acoustic characteristics comparable to those of bows made in Pernambuco, both in terms of physical properties and acoustic quality, while reducing their manufacturing cost, significantly reducing the environmental impact precisely because of the non-implementation of pernambuco.
  • this new material offers more possibilities in terms of musical effects such as the "legno collar”, the “jettato col legno”, the percussion effect, in addition to a more effective effect surface appearance. less scratching, conventionally required for contemporary music

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Stringed Musical Instruments (AREA)

Abstract

Bow for stringed musical instruments comprising a stick (1) terminated at one of the ends thereof by a head (2) and at the other end thereof by a frog (4), a strand (5) of hair being stretched between the head (2) and the frog (5). The stick (1) consists of a core (10) produced from palm fibres, covered by a sheath (11) made from carbon fibres.

Description

ARCHET POUR INSTRUMENTS DE MUSIQUE A CORDES FROTTÉES  BOW FOR MUSICAL INSTRUMENTS WITH FROSTED STRINGS
DOMAINE DE L'INVENTION L'invention concerne les archets pour instruments à cordes frottées, c'est-à-dire notamment pour le violon l'alto, le violoncelle et la contrebasse. FIELD OF THE INVENTION The invention relates to bows for bowed string instruments, that is to say in particular for violin, viola, cello and double bass.
Elle concerne également son procédé de fabrication, ainsi que le matériau mis en œuvre pour sa réalisation. It also relates to its manufacturing process, as well as the material used for its production.
ETAT ANTERIEUR DE LA TECHNIQUE PRIOR STATE OF THE TECHNIQUE
Depuis la fin du XVIIIème siècle, on utilise traditionnellement comme matériau constitutif de l'archet des instruments à cordes frottées, le pernambouc (caesalpina eschinata), essence d'arbre poussant principalement au Brésil, dont le bois est d'une très grande dureté, et d'une densité élevée, et en outre d'une grande résilience. Il est particulièrement apprécié, également en raison de sa dynamique, de la possibilité de le travailler comme le fer, du maillage de sa fibre qui le rend particulièrement résistant en flexion, et de ses propriétés acoustiques. Since the end of the eighteenth century, bowstring instruments have traditionally been used as the material of the bow, the pernambuco (caesalpina eschinata), a tree species growing mainly in Brazil, whose wood is very hard, and of high density, and also of great resilience. It is particularly appreciated, also because of its dynamics, the possibility of working it like iron, the mesh of its fiber which makes it particularly resistant in bending, and its acoustic properties.
En raison de la raréfaction de l'espèce, due à une déforestation agricole trop intense, cette essence a été inscrite à l'annexe II de la Convention sur le Commerce International des espèces de faune et de flore sauvage menacées d'extinction, de sorte que l'approvisionnement en pernambouc est à ce jour très sévèrement réglementé. Ce faisant, le prix des archets s'en trouve lui-même impacté. Due to the rarefaction of the species, due to excessive agricultural deforestation, this species has been included in Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and Flora. that the supply of pernambucos is so far very severely regulated. In doing so, the price of the bows is itself impacted.
Diverses espèces de bois ont été testées pour tenter ainsi de remplacer le pernambouc, sans succès, soit en raison de leur résistance mécanique ou de leur dynamique insuffisantes, ou de leur porosité trop grossière qui les rend cassants, soit en raison du fait que la qualité acoustique résultant de leur mise en œuvre n'est pas satisfaisante. Various species of wood have been tested to try to replace the pernambuco, without success, either because of their insufficient mechanical strength or dynamic, or their too coarse porosity that makes them brittle, or because the quality noise resulting from their implementation is not satisfactory.
On a également proposé la mise en œuvre d'archets composites comportant une âme en mousse de polyuréthane recouvert de fibres de carbone unidirectionnel, par exemple sous la forme d'une tresse (voir par exemple WO2006/059235). Si incontestablement, le coût des archets ainsi réalisés est sensiblement réduit, en revanche l'expérience démontre, d'une part, qu'ils ne présentent pas toujours les propriétés dynamiques et de résilience adéquates, et que d'autre part, la qualité acoustique résultant de leur mise en œuvre au niveau des instruments à cordes frottées ne satisfait pas un grand nombre de pratiquants. En effet, un tel matériau ne résonne que sur une parie réduite du spectre audible. It has also been proposed to use composite bows comprising a polyurethane foam core covered with unidirectional carbon fibers, for example in the form of a braid (see for example WO2006 / 059235). While the cost of the bows thus achieved is undeniably reduced, on the other hand the experiment shows, on the one hand, that they do not always have the adequate dynamic and resilient properties, and that on the other hand, the acoustic quality resulting from their implementation at the level of bowed string instruments does not satisfy a large number of practitioners. Indeed, such a material resonates only on a reduced bet of the audible spectrum.
EXPOSE DE L'INVENTION L'invention propose une solution alternative. DESCRIPTION OF THE INVENTION The invention proposes an alternative solution.
L'invention concerne donc un archet pour instruments à cordes frottées comprenant une baguette terminée à l'une de ses extrémités par une tête, et à son autre extrémité par une hausse, une mèche de crins étant tendue entre la tête et la hausse. The invention therefore relates to a bow for bowed string instruments comprising a rod completed at one of its ends by a head, and at its other end by a rise, a lock of horsehair being stretched between the head and the rise.
Selon l'invention, la baguette est constituée d'une âme réalisée en fibres de palmier (arecacease), revêtue d'une gaine réalisée à base de fibres de carbone. According to the invention, the rod consists of a core made of palm fibers (arecacease), coated with a sheath made from carbon fibers.
Plus particulièrement, on met en œuvre pour l'âme, des fibres denses de palmier en vue d'aboutir aux propriétés requises. More particularly, dense palm fiber fibers are used for the core in order to achieve the required properties.
En d'autres termes, l'invention consiste à réaliser un archet hybride alliant à la fois une âme en matériau naturel, apte à conférer à l'archet les propriétés acoustiques requises par les musiciens, notamment de haut niveau, entourée d'une gaine en fibres de carbone, qui apporte la dynamique et la résilience, lui conférant la résistance mécanique. On crée ainsi un nouveau matériau composite, développant des propriétés mécaniques et acoustiques. In other words, the invention consists in producing a hybrid bow combining at the same time a core of natural material, capable of conferring on the bow the acoustic properties required by the musicians, especially of high level, surrounded by a sheath carbon fiber, which brings dynamics and resilience, giving it mechanical strength. This creates a new composite material, developing mechanical and acoustic properties.
Selon une caractéristique de l'invention, la gaine est monocouche et est avantageusement constituée d'une tresse multi- filaments. According to one characteristic of the invention, the sheath is monolayer and is advantageously constituted by a multi-filament braid.
Cette gaine est en outre associée à une résine époxy, apte à favoriser l'adhérence de la gaine sur l'âme. Selon une autre caractéristique avantageuse de l'invention, on introduit entre l'âme en fibres de palmier et la gaine en fibres de carbone, des fils longitudinaux, également en fibres de carbone, mais avantageusement de plus grande densité que ceux constitutifs de la gaine, en vue de modifier la dynamique ou la résilience du matériau final. This sheath is also associated with an epoxy resin, capable of promoting the adhesion of the sheath to the core. According to another advantageous characteristic of the invention, longitudinal threads are introduced between the palm fiber core and the carbon fiber sheath, also made of carbon fibers, but advantageously of greater density than those constituting the sheath. , in order to modify the dynamics or the resilience of the final material.
Selon encore une autre caractéristique avantageuse de l'invention, la baguette reçoit un double tressage de fibres de carbone sur une distance comprise entre 10 et 15 cm à compter de la tête. Cette zone dite du collet est souvent critique pour les archets, dans la mesure où elle subit des contraintes importantes. Elle est d'ailleurs la principale source de cassure des archets traditionnels. According to yet another advantageous characteristic of the invention, the rod receives a double braiding of carbon fibers over a distance of between 10 and 15 cm from the head. This area known as the collar is often critical for the bows, as it undergoes significant constraints. It is also the main source of breakage of traditional bows.
BREVE DESCRIPTION DES FIGURES BRIEF DESCRIPTION OF THE FIGURES
La manière dont l'invention peut être réalisée et les avantages qui en découlent, ressortiront mieux de l'exemple de réalisation qui suit, donné à titre indicatif et non limitatif à l'appui des figures annexées. The manner in which the invention can be realized and the advantages which result therefrom will emerge more clearly from the following exemplary embodiment given by way of non-limiting indication in support of the appended figures.
La figure 1 est une représentation schématique d'un archet pour instruments à cordes frottées de l'art antérieur. Figure 1 is a schematic representation of a bow for bowed string instruments of the prior art.
La figure 2 est une représentation schématique en section d'un premier mode de réalisation de l'invention. Figure 2 is a schematic sectional representation of a first embodiment of the invention.
La figure 3 est une représentation schématique analogue à la figure 2 d'une autre forme de réalisation de l'invention. DESCRIPTION DETAILLEE DE L 'INVENTION  Figure 3 is a schematic representation similar to Figure 2 of another embodiment of the invention. DETAILED DESCRIPTION OF THE INVENTION
On a donc représenté en relation avec la figure 1 , un archet de facture classique mais également conforme à l'invention. Fondamentalement celui-ci se compose d'une baguette 1, aux deux extrémités de laquelle se situe la tête 2 précédée du collet 7 d'une part, et l'octogone 8 sur lequel est fixée la hausse 4 d'autre part. It is therefore shown in relation to Figure 1, a bow of conventional invoice but also according to the invention. Basically it consists of a rod 1, at both ends of which is the head 2 preceded by the collar 7 on the one hand, and the octagon 8 on which is fixed the rise 4 on the other hand.
Entre la tête 2, et plus précisément la plaque de tête 3 et la hausse 4, est tendue la mèche 5 de crins, typiquement de cheval, ayant vocation à frotter les cordes, notamment d'un violon par exemple. De manière connue, la tension de la mèche 5 est réalisée au niveau de la hausse. 4 par coulissement sur l'octogone 8. Between the head 2, and more specifically the head plate 3 and the rise 4, is stretched the wick 5 horsehair, typically horse, having the purpose of rubbing the strings, including a violin for example. In known manner, the tension of the wick 5 is achieved at the level of the rise. 4 by sliding on the octagon 8.
Selon l'invention, la baguette 1 est réalisée de manière hybride, et comporte fondamentalement une âme 10 réalisée en fibres denses de palmier (Arecaceae), entourée d'une gaine 11 réalisée en fibres de carbone. According to the invention, the rod 1 is made in a hybrid manner, and basically comprises a core 10 made of dense palm fibers (Arecaceae), surrounded by a sheath 11 made of carbon fibers.
La baguette est cambrée afin de conférer la forme souhaitée à l'archet. Préalablement à la mise en place de la gaine caractéristique de l'invention, on positionne une pièce, destinée à servir ultérieurement à la réalisation de la tête, notamment par moulage. The wand is arched to give the desired shape to the bow. Prior to the introduction of the characteristic sheath of the invention, a part is positioned, intended to be used later for the production of the head, in particular by molding.
Puis on procède au tressage des fibres de carbone autour de l'âme 10, afin de constituer la gaine 11. Ce tressage peut être réalisé par tout moyen, tel que notamment une tresseuse. On obtient ainsi une tresse monocouche, venant au contact de l'âme 10. Then the carbon fibers are braided around the core 10 so as to constitute the sheath 11. This braiding can be carried out by any means, such as in particular a braider. A monolayer braid is thus obtained, coming into contact with the core 10.
Les fibres de carbone mises en œuvre présentent typiquement une masse linéique de 150 Tex. The carbon fibers used typically have a linear density of 150 Tex.
Selon une caractéristique avantageuse de l'invention, on réalise même un double tressage sur une distance typiquement voisine de 15 centimètres, décomptée à partir de la tête, ce, afin d'augmenter la résistance de la baguette au niveau du collet en arrière de la tête. According to an advantageous characteristic of the invention, even a double braiding is carried out on a distance typically of about 15 centimeters, counted from the head, in order to increase the resistance of the rod at the collar behind the head. head.
Après la réalisation de ce tressage, et donc de la mise en place de la gaine, on enduit la périphérie de la gaine et donc de la baguette avec une résine époxy. Après polymérisation et éventuelle mise sous vide, la résine alors durcie, confère la résilience requise à l'archet. After the realization of this braiding, and therefore the establishment of the sheath, is coated the periphery of the sheath and therefore the rod with an epoxy resin. After polymerization and possible evacuation, the resin then hardened, gives the resilience required to the bow.
Consécutivement à cette opération, on procède traditionnellement au moulage de la tête, avantageusement avec de la résine. Les autres étapes de réalisation de l'archet sont réalisées ultérieurement, ce de manière connue, de sorte qu'il n'est pas nécessaire ici de les détailler. Succinctement, ces étapes consistent en la taille de la tête, la conformation de l'extrémité de la baguette en octogone destiné à recevoir la hausse et la mortaise pour ensuite permettre le réglage de la tension de la mèche. Following this operation, the head is traditionally molded, preferably with resin. The other steps of realization of the bow are performed later, in a known manner, so that it is not necessary here to detail. Briefly, these steps consist of the size of the head, the shape of the end of the octagonal rod to receive the rise and the mortise and then allow the adjustment of the tension of the wick.
Selon une variante de l'invention, préalablement à la réalisation de la tresse constitutive de la gaine 11, on positionne des fils longitudinaux 12, également réalisés en carbone. Ces fils peuvent éventuellement de titre ou de densité plus élevé que ceux des fibres constitutives de la gaine. According to a variant of the invention, prior to the production of the constituent braid of the sheath 11 is positioned longitudinal son 12, also made of carbon. These son may optionally have a higher titre or density than those constituting fibers of the sheath.
Ces fils sont donc orientés sensiblement parallèlement à la baguette. L'objectif recherché est d'ajuster le niveau de résilience souhaitée de l'archet. Ces fils sont positionnés et plaqués contre la surface périphérique de l'âme 10 au fur et à mesure de la réalisation de cette dernière. These son are oriented substantially parallel to the rod. The goal is to adjust the desired level of resilience of the bow. These son are positioned and pressed against the peripheral surface of the core 10 as the realization of the latter.
On conçoit tout l'intérêt de la présente invention qui, avant tout, propose un nouvel instrument de musique, en raison même des propriétés acoustiques de l'archet ainsi réalisé. It is understandable that the present invention, which, above all, proposes a new musical instrument, because of the acoustic properties of the bow thus produced.
Cet archet présente des caractéristiques dynamiques et acoustiques comparables à celles des archets réalisés en pernambouc, tant en termes de propriétés physiques que de qualité acoustique, tout en réduisant leur coût de fabrication, en réduisant considérablement l'impact environnemental en raison justement de la non mise en œuvre de pernambouc. This bow has dynamic and acoustic characteristics comparable to those of bows made in Pernambuco, both in terms of physical properties and acoustic quality, while reducing their manufacturing cost, significantly reducing the environmental impact precisely because of the non-implementation of pernambuco.
En outre, la mise en œuvre de ce nouveau matériau offre davantage de possibilités en termes d'effets musicaux tels que le « col legno », le « jettato col legno », l'effet percussion, outre un aspect de surface à effet plus ou moins grattant, classiquement requis pour la musique contemporaine In addition, the implementation of this new material offers more possibilities in terms of musical effects such as the "legno collar", the "jettato col legno", the percussion effect, in addition to a more effective effect surface appearance. less scratching, conventionally required for contemporary music

Claims

REVENDICATIONS
Archet pour instrument de musique à cordes frottées comprenant une baguette (1) terminée à l'une de ses extrémités par une tête (2) et à son autre extrémité par une hausse (4), une mèche (5) de crins étant tendue entre la tête et la hausse, caractérisé en ce que la baguette est constituée d'une âme (10) réalisée en fibres de palmier, revêtue d'une gaine (11) réalisée à base de fibres de carbone. Bowed musical instrument bow comprising a rod (1) terminated at one of its ends by a head (2) and at its other end by a rise (4), a wick (5) of horsehair being stretched between the head and the rise, characterized in that the rod consists of a core (10) made of palm fibers, coated with a sheath (11) made from carbon fibers.
Archet pour instrument de musique à cordes frottées selon la revendication 1, caractérisé en ce que la gaine (11) est monocouche. Bowed string musical instrument bow according to claim 1, characterized in that the sheath (11) is monolayer.
Archet pour instrument de musique à cordes frottées selon l'une des revendications 1 et 2, caractérisé en ce que la gaine est constituée d'une tresse multi- filaments. Bowed string musical instrument bow according to one of claims 1 and 2, characterized in that the sheath consists of a multi-filament braid.
Archet pour instrument de musique à cordes frottées selon l'une des revendications 1 à 3, caractérisé en ce que la gaine (11) est en outre associée à une résine, avantageusement époxy. Bowed musical instrument bow according to one of claims 1 to 3, characterized in that the sheath (11) is further associated with a resin, preferably epoxy.
Archet pour instrument de musique à cordes frottées selon l'une des revendications 1 à 4, caractérisé en ce que des fils longitudinaux, (12) également réalisés en fibres de carbone, sont positionnés à la surface périphérique de l'âme (10) préalablement à la mise en place de la gaine. Bowed stringed musical instrument bow according to one of claims 1 to 4, characterized in that longitudinal threads (12) also made of carbon fibers are positioned on the peripheral surface of the web (10) beforehand. at the installation of the sheath.
Archet pour instrument de musique à cordes frottées selon l'une des revendications 3 à 5, caractérisé en ce que la baguette reçoit un double tressage de fibres de carbone sur une distance comprise entre 10 et 15 cm à compter de la tête. Bowed stringed musical instrument bow according to one of claims 3 to 5, characterized in that the rod receives a double braiding of carbon fibers over a distance of between 10 and 15 cm from the head.
PCT/FR2016/050003 2015-02-13 2016-01-05 Bow for stringed musical instruments WO2016128629A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1551213A FR3032827B1 (en) 2015-02-13 2015-02-13 BOW FOR MUSICAL INSTRUMENTS WITH FROSTED STRINGS
FR1551213 2015-02-13

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WO2016128629A1 true WO2016128629A1 (en) 2016-08-18

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509076A1 (en) * 1981-07-06 1983-01-07 Cayuela Joseph Musical bow stick manufacturing method - involves impregnating reinforcing strands before pouring pigmented resin into mould
JP2001117558A (en) * 1999-10-22 2001-04-27 Bunkyo Gakki Seizo Kk Musical bow
WO2006059235A2 (en) 2004-11-16 2006-06-08 John Bartholomew Braided composite stringed musical instrument bow
FR2938686A1 (en) * 2008-11-18 2010-05-21 Jean Luc Tauziede Bow stick for e.g. string instrument, has stack of blades or cores, where blades are wooden blades and metal or composite material blades arranged parallel to longitudinal plane of bow

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2509076A1 (en) * 1981-07-06 1983-01-07 Cayuela Joseph Musical bow stick manufacturing method - involves impregnating reinforcing strands before pouring pigmented resin into mould
JP2001117558A (en) * 1999-10-22 2001-04-27 Bunkyo Gakki Seizo Kk Musical bow
WO2006059235A2 (en) 2004-11-16 2006-06-08 John Bartholomew Braided composite stringed musical instrument bow
FR2938686A1 (en) * 2008-11-18 2010-05-21 Jean Luc Tauziede Bow stick for e.g. string instrument, has stack of blades or cores, where blades are wooden blades and metal or composite material blades arranged parallel to longitudinal plane of bow

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FR3032827A1 (en) 2016-08-19
FR3032827B1 (en) 2017-02-10

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