JP2006285078A - Bridge silencer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a silencer which can safely be attached to and detached from a rubbed string instrument. <P>SOLUTION: Another weight heavier than a conventional silencer is securely fitted by using a member which is pressed against the reverse surface and top surface of a bridge of a rubbed string instrument to obtain large silencing effect and guarantee operation free of anxiety. A weight which operates as a bridge silencer can be united together with a silencer. The silencer is used while fitted to an ordinary musical instrument unlike an artificial stringed instrument having no resonance body, so when the silencer is detached from the musical instrument, the musical instrument is usable normally and the need to use another musical instrument to play together with other players or in front of people is eliminated to eliminate an increase in economical burden. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The invention of the present application relates to a bridge silencer (silencer) that is used by being attached to a bridge of a stringed instrument, particularly a stringed instrument.

  Increasing number of lovers enjoy music by playing their own musical instruments because of their leisure time. Such enthusiasts naturally have limitations on the place and time for playing musical instruments, and are generally at home at night, so it is necessary to harmonize with the surroundings when performing.

  There is a pseudo stringed instrument that does not have a sound board having a large area that constitutes a resonance drum, for the purpose of performing without generating a large sound. Because pseudo stringed instruments do not have a resonant body, they cannot obtain a volume that can be heard by others.

  For this reason, a microphone or a pickup such as a piezoelectric element is attached to the pseudo musical instrument, and the vibration of the bridge is taken out and electrically amplified by an amplifier. The sound obtained in this way is completely different from the sound obtained by the resonance drum. Because they are different, they cannot be used for ensembles.

  Therefore, the pseudo-instrument can only be used for an auxiliary purpose for practice, and the performer is obliged to own a normal instrument having a resonance body in addition to the pseudo-instrument, which is an economic burden. . In addition, if you want to perform both a normal performance that produces a loud sound at the destination and a practice that does not produce a loud sound, you will carry both a normal instrument and a pseudo instrument, Inconvenient.

  Mute (Soldino) is a tool used to reduce the sound of musical instruments. The mute of the stringed instrument is attached to a bridge (piece) that transmits the vibration of the string to the resonance body, and suppresses the vibration of the bridge. The mute is composed of hardwood such as ebony or rosewood, soft plastic or rubber having a metal wire as a structural material, and the weight is several grams.

  Since the main effect of muting is to change the sound quality, the sound quality differs between when mute is not used and when it is not used, and the sound cannot be reduced with the same sound quality.

  There is a silencer as a tool that can reduce the sound without changing the sound quality. The structure of a conventional silencer and how to use it will be described with reference to FIG.

  On a thin portion 8 at the top of the bridge 7 of a stringed instrument such as a violin or cello, a plurality of strings 10 with one end fixed to the tail piece 9 and applied with tension are placed at predetermined intervals. When the string 10 vibrates by rubbing with a bow, the vibration of the string excites vibration in the thin portion 8 at the top of the bridge 7, and the vibration resonates via the two bridge legs 11 and 12 of the bridge 7. The sound propagates to the soundboard having a large area constituting the body and generates a large sound.

  The structure of the silencer is almost the same as a hardwood mute, except that the silencer is made of metal and weighs about 100 grams (50 grams for violins). The silencer 1 has a “U” shape in which two legs 3 and 4 are formed on a main body 2, and a thin portion 8 at the top of a bridge 7 is sandwiched between the legs 3 and 4. The sandwiching portions 5 and 6 are formed.

  As shown in FIG. 2, the silencer 1 is attached with the thin portions 8 of the bridge 7 being sandwiched between the sandwiching portions 5 and 6, so that if the mounting method is incomplete, it will fall off and the worst case Can damage the instrument. In order to prevent such a situation, if the silencer is firmly fixed to the bridge, when the wedge-shaped sandwiching portions 5 and 6 of the metal silencer are inserted with a large force, wooden (usually made of wood) ) May damage the bridge.

  Further, since the silencer suppresses bridge vibration by its weight, the weight of the silencer is increased in order to increase the silencing effect. However, the weight of 50 grams for the violin and 100 grams for the cello is close to the limit for mounting on the thin part of the bridge, and if it is heavier than this, the bridge may be damaged.

  The present inventors have proposed a silencer having a structure in which a greater weight can be used to further increase the effect of the silencer without imposing a burden on the bridge in Japanese Patent Laid-Open No. 2002-182640. This silencer exhibits a greater silencing effect by adopting a structure in which a weight that cooperates in addition to the conventional silencer is attached by using a through hole formed in the center of the bridge.

  FIG. 2 shows a silencer for a stringed instrument (bridge silencer) disclosed in Japanese Patent Laid-Open No. 2002-182640. This bridge silencer includes a cylindrical weight 41 having a through screw hole 43 formed at the center thereof, and a plate-like pedestal 42 in which bolts 44 are implanted. The bridge silencer shown here is for a cello, the weight 41 is made of a brass material, and the pedestal 42 is made of a saddle material. Further, cut-off portions 46 and 47 are formed at the left and right upper end portions of the pedestal 42 to avoid the legs of the silencer 2 used in cooperation.

  In this bridge silencer, a bolt 44 planted on a base 42 is inserted into a through hole 45 provided in the center of the bridge 7, and the bolt 44 is screwed into a through screw hole of the weight 41 from the opposite side of the bridge. , Fixed to the bridge 7.

  In addition to the bridge silencer fixed to the bridge 7 in this way, the conventional silencer 2 shown in FIG. 1 is attached to the thin portion 8 at the upper end of the bridge by the sandwiching portions 6 and 7 of the legs 3 and 4. In cooperation with the silencer mounted in this way, the bridge silencer exhibits a silencing function.

  However, since the work of attaching the silencer to the bridge shown in Japanese Patent Application Laid-Open No. 2002-182640 is performed by attaching a weight member below the string, particularly in a stringed instrument having a narrow space under the string, such as a violin. It is difficult to install and remove.

  In addition, there is a risk that the weight member may be applied to the musical instrument when it is attached or removed, and may be damaged.

  As a structure for attaching the silencer 2 to the bridge, registered utility model No. 3018815 discloses a structure in which a weight is attached by a claw member made up of a plurality of leaf springs. This mounting structure is not only difficult to mount and dismount, but also the mounting state is unstable.

JP 2002-182640 A Registered Utility Model No. 3018815

  An object of the present invention is to solve the problem that a conventional silencer is not easy to attach to / remove from a musical instrument and may damage the musical instrument if not performed carefully.

  Therefore, the bridge silencer according to the present application is configured so that the silencer can be attached from above the bridge, and is configured not to be easily detached.

  By doing so, the bridge silencer can be easily attached and firmly attached to the musical instrument, so that it is possible to prevent an accident in which the bridge silencer collides with the musical instrument and is damaged.

  In addition, since it is possible to use a weight that is heavier than conventional ones, it is possible to obtain a greater silencing effect that cannot be obtained with conventional bridge silencers.

  Embodiments of the present invention will be described below with reference to the drawings.

The first embodiment is shown in FIG. 3, and the mounting structure is shown in FIG.
The bridge silencer includes a main body 2, a pressure plate 17, bolts 14, and nuts 19.

  The main body 2 has a “U” shape in which two legs are formed or a “yo” shape in which three legs are formed in order to avoid a string. A through hole 15 is formed.

  The pinching plate 17 is provided with a hole 16 through which the bolt 14 can pass, and an extension 18 for sandwiching the bridge 7 is formed. The space between the pressure plate 17 and the main body 2 is attached to the bridge 7 by tightening the other end of the bolt 14 passing through the hole 16 of the pressure plate 17 and the hole 15 of the main body 2 with a nut 19.

The bridge silencer is inserted from above the strings 10 _-1 , 10 _-2 and 10 _-3 , 10 _{-4 with} the legs 3 and 4 along the back surface 20 of the bridge 7. At that time, the nut 19 is loosened and the extension member 18 of the pressure plate 17 is inserted into a position along the surface 21 of the bridge 7.

In this state, the legs 3 and 4 are inserted between the strings 10 ₋₁ , 10 ₋₂ and 10 ₋₃ , 10 ₋₄ , respectively, and the extension member 18 is interposed between the strings 10 ₋₂ and 10 ₋₃ . Inserted.
When the instrument is placed horizontally, even if the bridge silencer is inadvertently removed from the hand at this time, the bridge silencer will fall on the strings 10 _-1 , 10 _-2 and 10 _-3 , 10 _-4. Never do.

  When the nut 19 is tightened in a state where the bridge 7 is inserted between the main body 2 and the pressure plate 17, the gap between the pressure plate 17 and the main body 2 is narrowed and the bridge silencer is fixed to the bridge 7.

Normally, the back surface 20 of the bridge 7 is a flat surface, and the front surface 21 is a slope that gradually increases in the direction of the bridge legs 11 and 12.
The extension 18 is disposed at an angle along the slope of the surface 21, and when the nut 19 is tightened, the bridge silencer is fixed to the bridge 7 with a large clamping pressure.

  Since the portion where the extension portion 18 contacts the surface 21 of the bridge 7 is flat, even if the bridge 7 is tightened with a large clamping pressure, the portion is not damaged. Needless to say, the attachment force of the bridge silencer to the bridge 7 is further increased by attaching rubber or leather with a large coefficient of friction on the surface where the extension 18 contacts the bridge 7. There is less concern about hurting.

  In a state where a bridge silencer having a predetermined weight is fixed to the bridge 7 with a strong clamping pressure, even if a resonance phenomenon occurs during performance, the bridge silencer does not come off the bridge 7 and fall off.

  By utilizing this fact, it becomes possible to further increase the silencing effect by further increasing the weight of the bridge silencer.

An improved configuration applied to the first embodiment is shown in FIG.
One means is to make the nut 19 heavy. For example, the nut 23 shown in FIG. 5 is made of a metal having a high density such as brass. In the case of a cello, the diameter is about 30 mm, the length is about 20 mm, and the weight is 100 grams.

A screw hole that engages with the bolt 14 is formed in the nut 23.
In this case, the total weight of the bridge silencer is as large as 200 grams, which is 100 grams of the main body 2 and 100 grams of the weight nut 23, and the silencing effect of the bridge silencer is increased. If a knurling for facilitating tightening is attached to the outer periphery of the weight nut 23, the operability of mounting and removing the bridge silencer is further improved.

  If a cushioning material made of rubber, leather, plastic, felt or the like is interposed between the weight nut 23 and the main body 2, it is possible to prevent generation of noise due to incomplete tightening.

  As another means, the weight of the main body 2 can be increased from 100 grams to 200 grams.

  By inserting the spring 24 between the main body 2 and the pinching plate 17, the attachment / detachment operation becomes easy. Further, when the nut is a large weight nut, if the decorative plate 25 is attached to the side of the weight nut that does not contact the main body, the appearance becomes beautiful. Further, if the retaining ring 26 is attached so that the nut 19 or the weight nut 23 does not come off when the bolt is screwed in, the attaching / detaching operation is further facilitated.

Example 2 will be described with reference to FIG.
The bridge silencer includes a main body 60, a pressure plate 17, bolts 61, and nuts 19.

  The main body 60 has a “U” shape in which two legs are formed to avoid a string or a “Y” shape in which three legs are formed. Has been planted.

  As in the first embodiment shown in FIG. 3, the pinching plate 17 is formed with a hole in which the bolt 14 is loosely fitted, and an extension for sandwiching the bridge is formed. The gap between the clamping plate 17 and the main body 60 is attached to the bridge by tightening the other end of the bolt 61 passing through the hole of the clamping plate 17 with the nut 19.

  Since other aspects, such as an attachment structure, are the same as that of Example 1 shown in FIG. 4, description is abbreviate | omitted.

FIG. 7 shows a modification of the first embodiment.
Pin receiving portions 27 and 28 are formed on the upper left and right ends of the main body 2 shown here, and pin receiving portions 29 and 30 corresponding to the pin receiving portions 28 and 29 are formed on the upper left and right ends of the pinching plate 17, By inserting the pin 31 in the order of the pin receiving portions 27-29-30-28, a hinge is configured.

By adopting such a configuration, not only does the pinching plate 17 not rotate when the nut 19 is rotated, but also the pinching pressure works reliably by the hinge.
Needless to say, the weight nut 23, the spring 24, the decorative plate 25, and the retaining ring 26 shown in FIG. 5 can be applied to the bridge silencer shown in FIG.

A third embodiment will be described with reference to FIG.
Unlike the bridge silencer of the first embodiment shown in FIGS. 3 to 6, the bridge silencer of the third embodiment does not have a mounting structure with a bolt penetrating the main body and a nut screwed to the bolt. .

  The main body 51 has a “U” shape in which two legs are formed or a “yo” shape in which three legs are formed in order to avoid a string. Pin receiving portions 53 and 54 are formed, and pin receiving portions 55 and 56 corresponding to the pin receiving portions 53 and 54 are formed on the upper left and right ends of the pinching plate 52, and the pins 59 are connected to the pin receiving portions 53-55-56. The hinge is formed by inserting in the order of -54.

  A coil spring 50 for generating a force for pressing the bridge between the main body 51 and the pressing plate 52 is attached between the pin receiving portions 55 and 56 constituting the hinge.

  When this bridge silencer is attached to a musical instrument, a gap is created by pulling the gripping portion 57 of the main body 51 and the gripping portion 58 of the pinching plate 52 together, and after gripping the bridge, the gripping portions are pulled toward each other by a spring.

Embodiment 4 will be described with reference to FIG.
In the bridge silencer of the embodiment described so far, the mounting member by the bolt-nut or hinge structure is arranged on the side surface of the main body, but the mounting member can also be arranged at the upper part of the main body.

  As shown in FIG. 9 (a), the main body 2 has a “U” shape in which two legs are formed or a “yo” shape in which three legs are formed in order to avoid a string. A screw hole is formed in the upper surface of the main body 2. The pinching plate 32 is bent in an L shape, and a hole 16 through which the knob bolt 33 can pass is formed on one surface thereof. The other surface bent in an L shape is an extension member 18 that sandwiches the bridge 7.

A method of attaching the bridge silencer thus configured to the bridge 7 will be described with reference to FIG.
The bridge silencer is inserted from above the string 10 with the legs 3 and 4 along the back surface 20 of the bridge 7. At that time, the extension bolt 18 of the pressure plate 32 is inserted in a position along the surface 21 of the bridge 7 with the knob bolt 33 loosened. In this state, the legs 3 and 4 are inserted between the strings 10 ₋₁ , 10 ₋₂ and 10 ₋₃ , 10 ₋₄ , respectively, and the extension member 18 is interposed between the strings 10 ₋₂ and 10 ₋₃ . Will be inserted. In the state where the musical instrument is placed horizontally, the bridge silencer is not dropped because it is on the plurality of strings 10 even if the hand is carelessly released at this time.

  By tightening the knob bolt 33 in a state where the bridge silencer is inserted into the bridge 7, the gap between the pressing plate 32 and the main body 2 is narrowed and the bridge silencer is fixed to the bridge 7. When the knob bolt 33 is tightened, one end of the clamping plate 32 is placed on the upper surface of the main body 2 as a fulcrum 22 and the extension member 18 at the other end bent in an L shape presses the surface 21 of the bridge 7. Since the extension member 18 is disposed at an angle along the slope of the surface 21, the bridge silencer is fixed to the bridge 7 with a strong pressing force by tightening the knob bolt 33.

  Also in this embodiment, since the portion where the extension member 18 contacts the surface 21 of the bridge 7 is flat, even if the bridge 7 is tightened with a strong pressing force, the portion is not damaged. It goes without saying that the attachment force of the bridge silencer to the bridge 7 is further increased by sticking rubber with a large coefficient of friction on the surface where the extension member 18 contacts the bridge 7. Concern will be further reduced.

By increasing the weight of the main body 2, it is possible to increase the silencing effect.
In addition, it is possible to increase the silencing effect by configuring the knob portion of the knob bolt 33 with a large member and further increasing its weight.

FIG. 10 shows a modification of the fourth embodiment.
In this modification, a spring 51 is disposed between the L-shaped pinching plate at the top of the main body 2 via the base of the knob bolt 33 and urges the L-shaped pressing plate so as to separate from the main body.
Similarly to the modification shown in the figure, the attachment / removal operation is facilitated by attaching the retaining ring 52 to the lower part of the knob bolt.

Example 5 will be described with reference to FIG.
In the bridge silencer of the embodiment described so far, the mounting member by the bolt-nut or hinge structure is arranged on the side surface of the main body, but the mounting member can also be arranged at the upper part of the main body.

  As shown in FIG. 9A, a screw hole is formed in the upper surface of the main body 2. The pinching plate 32 is bent in an L shape, and a hole 16 through which the knob bolt 33 can pass is formed on one surface thereof. The other surface bent in an L shape is an extension member 18 that sandwiches the bridge 7.

Example 2 will be described with reference to FIG.
This bridge silencer includes a main body 62, a pressure plate 32, bolts 63, and nuts 64.

  The main body 62 has a “U” shape in which two legs are formed or a “yo” shape in which three legs are formed to avoid a string, and a bolt 63 is implanted on the upper surface. Has been.

  The pinching plate 32 is bent in an L shape, and a hole through which the bolt 63 can pass is formed on one surface thereof. The other surface bent in an L shape is an extension member that sandwiches the bridge.

  The gap between the clamping plate 32 and the main body 62 is attached to the bridge by tightening the other end of the bolt 63 passing through the hole of the clamping plate 32 with a nut 64.

  Since other aspects, such as an attachment structure, are the same as that of Example 1 shown in FIG. 4, description is abbreviate | omitted.

  As described above, in any of the four embodiments, the bridge silencer can be attached to and detached from the bridge from above the bridge, and when the bridge silencer is inserted to some extent, the legs and the extension member have a plurality of strings. Since the bridge silencer will not fall and damage the instrument even if you take your hand carelessly in that state, you can operate with peace of mind.

  In addition, the mounting force of the bridge silencer can be obtained by tightening the screw member, and since the part that presses the bridge is flat, it can maintain a strong mounting force that prevents the bridge silencer from coming off even when a resonance phenomenon occurs. And there will be no dents on the bridge.

  As described above, according to the invention of the present application, it is possible to provide a silencer for a bowed instrument that is easy to attach and detach and has a great silencing effect.

Explanatory drawing of the conventional silencer. Explanatory drawing of the bridge silencer of prior invention. FIG. 3 is an explanatory diagram of a bridge silencer according to the first embodiment. FIG. 3 is an explanatory diagram of installation of the bridge silencer according to the first embodiment. FIG. 3 is an explanatory diagram of an improved example of Example 1. Explanatory drawing of the other improved Example of Example 1. FIG. Explanatory drawing of the bridge silencer of Example 2. FIG. Explanatory drawing of the bridge silencer of Example 3. FIG. Explanatory drawing of the bridge silencer of Example 4. FIG. Explanatory drawing of the improvement Example of Example 4. FIG. Explanatory drawing with a bridge silencer of Example 5. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Silencer 2,51,60,62 Main body 3,4 Leg part 5,6 Clamping part 7 Bridge 8 Thin part 9 Tailpiece 10 String 11,12 Bridge leg 14,44,33,61,63 Bolt 15,16 hole 17, 32 Clamping plate 18 Extension part 19 Nut 22 Support point 23 Weight nut 24, 50, 51 Spring 27, 28, 29, 30, 53, 54, 55, 56 Pin receiving part 31, 59 Pin 33 Grasp bolt 57, 58 Grip Part

Claims (15)

A bridge silencer that attaches to a bow of a bowed instrument to reduce the volume of the instrument:
The bridge silencer is composed of a main body having a large weight, a pinching plate that cooperates with the main body to pinch the bridge to fix the main body to the bridge, a bolt, and a nut;
The body is formed with at least one recess formed so as not to contact a string when the body is attached to the bridge;
A through hole having a diameter into which the bolt is loosely fitted is formed in the main body;
A through hole having a diameter into which the bolt is loosely fitted is formed in the pinching plate;
Bridge silencer. Increased the weight of the body;
The bridge silencer of claim 1. Increased the weight of the nut;
The bridge silencer of claim 1. Pin receiving portions are formed at both upper ends of the main body;
Pin receiving portions are formed at both upper ends of the pinching plate;
A pin is inserted into a pin receiving portion formed on the main body and a pin receiving portion formed on the pinching plate to form a hinge;
The bridge silencer of claim 1. A spring is interposed between the body and the clamping plate;
The bridge silencer of claim 1. A bridge silencer that attaches to a bow of a bowed instrument to reduce the volume of the instrument:
The bridge silencer is composed of a main body having a large weight, a pinching plate for clamping the bridge in cooperation with the main body and fixing the main body to the bridge, a bolt and a nut;
The body is formed with at least one recess formed so as not to contact a string when the body is attached to the bridge;
The bolt is implanted on a surface of the main body contacting the bridge;
A through hole having a diameter into which the bolt is loosely fitted is formed in the pinching plate;
Bridge silencer. Increased the weight of the body;
The bridge silencer of claim 6. Increased the weight of the nut;
The bridge silencer of claim 6. Pin receiving portions are formed at both upper ends of the main body;
Pin receiving portions are formed at both upper ends of the pinching plate;
A pin is inserted into a pin receiving portion formed on the main body and a pin receiving portion formed on the pinching plate to form a hinge;
The bridge silencer of claim 6. A spring is interposed between the body and the clamping plate;
The bridge silencer of claim 6. A bridge silencer attached to the bridge of a bowed instrument to reduce the volume of the instrument;
The bridge silencer includes a main body having a large weight, and a pinching plate that presses the bridge in cooperation with the main body and fixes the main body to the bridge;
An upper portion of the main body is formed with at least one concave portion formed so as not to contact the string when attached to the gripping member and the bridge, and pin receiving portions are formed at both ends of the upper portion;
Pin receiving portions are formed at both upper ends of the pinching plate;
A pin is inserted into a pin receiving portion formed on the main body and a pin receiving portion formed on the pinching plate to form a hinge;
A spring for biasing between the pressing plates is provided;
Bridge silencer. A bridge silencer attached to the bridge of a bowed instrument to reduce the volume of the instrument;
The bridge silencer includes a main body having a large weight, a pinching plate for pinching the bridge in cooperation with the main body to fix the main body to the bridge, and a bolt for attaching the pinching plate to the main body;
The body is formed with at least one recess formed so as not to contact a string when the body is attached to the bridge;
A nut portion into which the bolt is screwed is formed at an upper portion of the main body;
The pinching plate is L-shaped and has a loose fitting hole in which the bolt is loosely fitted;
Bridge silencer. A spring is interposed between the body and the clamping plate;
The bridge silencer of claim 12. A bridge silencer attached to the bridge of a bowed instrument to reduce the volume of the instrument;
The bridge silencer includes a main body having a large weight, a pinching plate for pinching the bridge in cooperation with the main body to fix the main body to the bridge, and a bolt for attaching the pinching plate to the main body;
The body is formed with at least one recess formed so as not to contact a string when the body is attached to the bridge;
The bolt is implanted on the upper surface of the body;
The pinching plate is L-shaped and has a loose fitting hole in which the bolt is loosely fitted;
Bridge silencer. A spring is interposed between the body and the clamping plate;
The bridge silencer of claim 14.

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