Bow and sound quality adjustment part

Abstract

A violin bow, comprising a bow stick, a bow head formed at one end of the bow stick, a hair reservoir adjacent to the other end of the bow stick, a hair bundle held between the bow head and the hair reservoir, an adjusting screw inserted longitudinally into the bow stick from the other end of the bow stick, and a tone quality adjusting member. The hair reservoir includes a protruding portion having an eyelet, and the protruding portion is received in a mortise of the bow stick. The adjusting screw extends through the eyelet of the protruding portion of the hair reservoir and rotatably drives the hair reservoir to move longitudinally relative to the bow head on the bow stick. The tone quality adjusting member is made of a material with a Young's modulus less than 3.5 GPa and is clamped between the bow stick and the adjusting screw, which plays a role in improving the tone quality of the string instrument using the violin bow.

Description

Technical Field

[0001] The present invention relates to a bow, and more particularly to a bow having a tone adjustment member. Background Art

[0002] When playing stringed instruments such as violins, violas, or cellos, a bow is used to draw the strings, causing the strings to vibrate and produce sound. Different bows paired with the same stringed instrument can produce very different sounds.

[0003] The production of bows requires delicate skills. Many characteristics of a bow, such as the material of the bow stick, elasticity, weight distribution, bundling of the hair bundle, etc., affect the quality of the bow and the feel of holding the bow, and thus have a great impact on the sound quality of the stringed instrument it plays. Therefore, in the competitions held by the Violin Society of America every year, the violin-making competition and the bow-making competition are judged separately. Summary of the Invention

[0004] Therefore, one object of the present invention is to provide a bow that can improve the sound quality of the paired stringed instrument.

[0005] Thus, in some embodiments of the bow of the present invention, it includes a bow stick having opposite first and second ends and a mortise formed adjacent to the second end, a bow head formed at the first end of the bow stick, a hair holder including a protruding member having an eyelet received in the mortise, a hair bundle held between the bow head and the hair holder, an adjusting screw inserted longitudinally into the bow stick from the second end and extending through the eyelet, and a tone adjustment member.

[0006] The adjusting screw is configured to rotatably drive the hair holder to move relative to the bow head in the longitudinal direction of the bow stick. The tone adjustment member is made of a material with a Young's modulus less than 3.5 GPa and is clamped between the bow stick and the adjusting screw.

[0007] In some embodiments, the adjusting screw includes a screw head and a screw rod connected to the screw head and extending through the tone adjustment member; the tone adjustment member is clamped between the second end of the bow stick and the screw head of the adjusting screw.

[0008] In some embodiments, the eyelet is a threaded hole, and the screw rod of the adjusting screw is screwed into the eyelet to drive the hair holder to move.

[0009] In some embodiments, the hair holder includes a main body having a bottom side that fits against the bow stick, and the protruding member is fixed and protrudes from the bottom side of the main body.

[0010] In some embodiments, the sound quality adjustment member is made of a material with a Young's modulus less than 1 GPa.

[0011] In some embodiments, the material of the sound quality adjustment member is at least one of sponge, rubber, foam, silica gel, and latex.

[0012] In some embodiments, the sound quality adjustment member is one of the shapes of disc, ring, block, and sphere.

[0013] Another object of the present invention is to provide a sound quality adjustment member for the aforementioned violin bow, characterized in that: the sound quality adjustment member is made of a material with a Young's modulus less than 1 GPa.

[0014] The beneficial effect of the present invention is that the violin bow disclosed by the present invention includes a sound quality adjustment member clamped between the bow stick and the adjusting screw, and the sound quality adjustment member is made of a material with a Young's modulus less than 3.5 GPa, which plays a role in improving the sound quality of the string instrument using the violin bow. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the drawings, wherein:

[0016] Figure 1 is a schematic diagram showing a violin bow according to an embodiment of the present invention;

[0017] Figure 2 is a partially exploded sectional view showing a partial component of a violin bow according to an embodiment of the present invention;

[0018] Figure 3 is a partial schematic diagram showing a violin bow according to an embodiment of the present invention;

[0019] Figure 4 and Figure 5 respectively show the sound wave diagrams generated by pulling the open E string of the same string instrument with a violin bow having the sound quality adjustment member disclosed by the present invention and a violin bow without the sound quality adjustment member; and

[0020] Figure 6 and Figure 7 respectively show the sound wave diagrams generated by pulling the open D string of the same string instrument with a violin bow having the sound quality adjustment member disclosed by the present invention and a violin bow without the sound quality adjustment member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Before the present invention is described in detail, it should be noted that in the following description, similar components are denoted by the same reference numerals.

[0022] Please refer to Figure 1, according to an embodiment of the violin bow 100 of the present invention, the sound quality of the paired stringed instrument can be improved. The violin bow 100 includes a bow stick 1 having a first end 11 and a second end 12 opposite to the first end 11, a bow head 2 formed at the first end 11, a hair holder 3 mounted on the bow stick 1 adjacent to the second end 12, a hair bundle 4 held between the bow head 2 and the hair holder, an adjusting screw 5 for adjusting the position of the hair holder 3 on the bow stick 1, and a sound quality adjusting member 6. In this embodiment, the bow stick 1 and the bow head 2 are integrally formed.

[0023] Further referring to Figure 2 and Figure 3 , the bow stick 1 further has a mortise 13, which is a rectangular hole formed adjacent to the second end 12.

[0024] The hair holder 3 includes a main body 31 having a bottom side 310 that fits against the bow stick 1, a protruding member 32 fixed and protruding from the bottom side 310 of the main body 31, and a hoop 33 fixed to the main body 31 and surrounding the hair bundle 4 to guide the hair bundle 4 to be flat and wide. The length of the mortise 13 in the longitudinal direction of the bow stick 1 is longer than that of the protruding member 32 of the hair holder 3, so that the protruding member 32 can be movably received therein. The protruding member 32 is also formed with a longitudinally penetrating hole as an eyelet 320, and in this embodiment, the eyelet 320 is a screw hole.

[0025] The sound quality adjusting member 6 is made of a material with a Young's modulus generally equal to or less than 3.5 GPa. In some embodiments, the Young's modulus of the sound quality adjusting member 6 is generally equal to or less than 1 GPa. In this embodiment, the sound quality adjusting member 6 is made of at least one of sponge, rubber, foam, silicone, and latex, and it can be designed in (but not limited to) the form of a disc, a ring, a block, or a sphere.

[0026] The adjusting screw 5 includes a screw head 51 and a screw rod 52 connected to the screw head 51 and at least partially having threads. In order to fix the hair holder 3 to the bow stick 1, the protruding member 32 is first received into the mortise 13, the sound quality adjusting member 6 is placed at the second end 12 of the bow stick 1, and then the screw rod 52 of the adjusting screw 5 extends through the sound quality adjusting member 6 and is inserted into the bow stick 1 along the longitudinal direction of the bow stick 1, so that the sound quality adjusting member 6 is clamped between the second end 12 of the bow stick 1 and the screw head 51 of the adjusting screw 5. Such a clamping configuration provides a sound insulation effect between the bow stick 1 and the adjusting screw 5. In addition, the screw rod 52 of the adjusting screw 5 extends through the eyelet 320 and is locked and threadedly engaged into the eyelet 320, so that the adjusting screw 5 can be rotated to move the hair holder 3 relative to the bow head 2 in the longitudinal direction, thereby adjusting the tightness of the hair bundle 4.

[0027] Regarding the function of the tone adjustment member 6, a conventional violin bow (not shown in the figure) does not have a tone adjustment member. When it causes an open string of an E-string of a violin (not shown in the figure) to vibrate and produce a sound, the sound has a waveform as shown in Figure 4 . However, according to the present disclosure, when the violin bow 100 having the tone adjustment member 6 causes the same open string of the same E-string of the same violin to vibrate, the sound produced has a waveform as shown in Figure 5 . Obviously, compared with the waveform of Figure 4 , the waveform of Figure 5 has more fine structures (more harmonics) and sharper peaks, and such characteristics imply a relatively richer timbre (enhanced sound quality).

[0028] Similar effects can also be observed when playing other strings. For example, when a conventional violin bow causes an open string of a D-string of a violin (not shown in the figure) to vibrate, the sound emitted by the D-string has a waveform as shown in Figure 6 . However, according to the present disclosure, the violin bow 100 having the tone adjustment member 6 causes the same open string of the same D-string of the same violin to vibrate and produce a sound having a waveform as shown in Figure 7 . Compared with the waveform of Figure 6 , the waveform of Figure 7 has more fine structures and sharper peaks.

[0029] In summary, the violin bow 100 disclosed in the present invention includes a tone adjustment member 6 clamped between the bow stick 1 and the adjusting screw 5, which can make a string instrument produce a sound of superior quality. It is worth mentioning that because the tone adjustment member 6 is located at the second end 12 of the bow stick 1, that is, the position where the performer holds the bow, and the designed tone adjustment member 6 is quite light in weight, it will not affect the feel of holding the bow.

[0030] In the above description, for the purpose of explanation, many specific details have been set forth in order to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that one or more other embodiments may be practiced without some of these specific details. It should also be understood that throughout the specification, references to "one embodiment", "an embodiment", "embodiments" with ordinal indications, etc. mean that a particular feature, structure, or characteristic may be included in the practice of the present invention. It should be further understood that in the specification, various features are sometimes combined in a single embodiment, drawing, or description thereof in order to simplify the present invention and help understand various aspects of the invention, and that one or more features or, where appropriate, specific details from one embodiment may be practiced together with one or more features or specific details from another embodiment in the practice of the present invention.

[0031] Although the present invention has been described in connection with exemplary embodiments, it should be understood that the present invention is not limited to the disclosed embodiments, but is intended to cover various modifications and equivalent arrangements and their equivalent variations included within the spirit and scope of the appended claims.

Claims

1. A violin bow, characterized in that Comprising: A bow rod having a first end, a second end opposite the first end, and a mortise formed adjacent the second end; A bow head formed at the first end of the bow rod; A hair holder for the bow hair, including a protruding member having an eyelet, the protruding member being received in the mortise; A bundle of bow hair being held between the bow head and the hair holder for the bow hair; An adjusting screw inserted longitudinally into the bow rod from the second end, extending through the eyelet, and configured to rotatably drive the hair holder for the bow hair to move longitudinally of the bow rod relative to the bow head; and A tone quality adjusting member made of a material having a Young's modulus of less than 3.5 GPa and clamped between the bow rod and the adjusting screw.

2. The violin bow according to claim 1, characterized in that The adjusting screw includes a screw head and a screw rod connected to the screw head and extending through the tone quality adjusting member; the tone quality adjusting member is clamped between the second end of the bow rod and the screw head of the adjusting screw.

3. The violin bow according to claim 2, characterized in that, The eyelet is a threaded hole, and the screw rod of the adjusting screw is screwed into the eyelet to drive the hair holder for the bow hair to move.

4. The violin bow according to claim 1, characterized in that, The hair holder for the bow hair includes a main body having a bottom side that fits against the bow rod, and the protruding member is fixed and protrudes from the bottom side of the main body.

5. The violin bow according to claim 1, characterized in that: The tone quality adjusting member is made of a material having a Young's modulus of less than 1 GPa.

6. The violin bow according to claim 1, characterized in that, The material of the tone quality adjusting member is at least one of sponge, rubber, foam, silica gel, and latex.

7. The violin bow according to claim 1, wherein The tone quality adjusting member is one of the shapes of disc-shaped, ring-shaped, block-shaped, and spherical.

8. A tone quality adjusting member for a violin bow according to claim 1, characterized in that: The tone quality adjusting member is made of a material having a Young's modulus of less than 1 GPa.

Images