JP4332885B2 - String support method for stringed instruments - Google Patents

Description

  The present invention relates to a string support method for a stringed instrument in which each string of a stringed instrument having a solid solid body is supported by a bridge fixed to the surface of the body.

  The general structure of a guitar as a conventionally known stringed instrument is that one end of each string is locked by a peg (pincushion) provided on the head of the neck, and the other end of each string is the surface of the body. By being supported by a bridge fixed to the bridge, the vibration of each string is transmitted to the body via the bridge.

  By the way, the acoustic guitar transmits the string vibration of each string to the resonance cylinder via the bridge, thereby converting the vibration energy of each string into acoustic energy. There is a need for a system that converts sound components.

  On the other hand, since the electric guitar is provided with a pickup device that converts string vibration into an electric signal, the acoustic characteristics of the body are not so much required, and it is formed into a predetermined shape by a piece of wood or plywood or the like. Generally, it is a solid type solid structure. Therefore, in the case of an electric guitar having a solid body, the acoustic characteristics of the body currently depend on the selection of the material, and as a result of using an expensive material, the price of the musical instrument increases.

  However, the bridge that transmits vibration energy to the face plate of the body and the solid body are also vibrating bodies, and it is an excellent tone that forcibly transmits the string vibration of each string transmitted to the bridge to the body. It becomes one factor to put out.

  Therefore, in a conventional musical instrument, Patent Document 1 is referred to as a prior art of a vibration transmission system related to a bridge. In the invention of this document, a lever mechanism is provided between the string and the bridge, and by matching the mechanical impedance between the string and the surface plate, the vibration energy of the string is forcibly transmitted to the surface plate, thereby producing a rich sound volume. It is something to get.

  However, the technique of Patent Document 1 is intended for a hollow acoustic guitar having a surface plate on the body, and as a specific configuration, a lever having one end supported by a beam between a bridge and a string. Therefore, the structure for supporting the strings is complicated, and the lever structure is exposed around the bridge, so that the exterior of a conventional electric guitar is different.

Further, Patent Document 2 exists as a prior art relating to an electric guitar having a solid body, and this is a fitting in which the body main body and the neck main body are formed in different structures and formed in the center of the back surface of the body main body in the width direction. The extension of the neck body is fitted into the groove and fixed with a bolt or an adhesive, and is not improved to forcibly transmit the string vibration of each string to the body.
JP 2005-156648 A JP 2003-330466 A

  In addition, there are a lot of conventional technologies related to bridges for electric guitars, but most of them are designed to realize irregular tuning with a simple structure. In solid-type electric guitars, bridges transmitted from each string In fact, it is impossible to find a conventional technique in which string vibration is forcibly transmitted to the body.

  The present invention has been made in view of the above circumstances, and in a stringed musical instrument of a solid type body, by improving the structure for transmitting the string vibration of each string transmitted to the bridge to the inside of the body, the reverberation sound of the string vibration Another object of the present invention is to provide a string support method for a stringed instrument that improves the sustainability and can produce an excellent tone.

In order to solve the above problem, the string support method for a stringed instrument according to claim 1 of the present invention is a stringed instrument that transmits string vibration of each string provided to a stringed instrument having a solid body to the body via a bridge. One end of the sonic high-conductivity element is pressed against a bridge fixed to the body, and the sonic high-conductivity element is a metal pipe or a pipe made of a high-conductivity chemical synthetic material. By burying the pipe in a press-contact state partway through the formed vertical hole, the string vibration of the bridge is forcibly transmitted to the entire interior of the body through the pipe .

  According to the string supporting method of the stringed instrument of the present invention, it becomes possible to forcibly transmit the string vibration of each string transmitted to the bridge to the body via the sonic high conductivity element (metal pipe or metal plate). Thus, the string vibration transmitted from each string is forcibly and efficiently transmitted to the entire interior of the body, and the reverberation sound and sustainability of the string vibration can be improved, thereby making it possible to produce an excellent timbre.

  In the present invention, the sonic high-conductivity element (metal pipe or metal plate) is provided inside the body, so that the appearance is the same as that of a conventional stringed instrument, and its material is small and inexpensive. As a result, the price of improved stringed instruments will not rise.

  Embodiments of the present invention will be described below with reference to the drawings. As the stringed instrument according to the present invention, an electric guitar having a solid body will be taken as an example, and description will be made separately for each embodiment depending on the difference in the bridge structure.

  As will be apparent from the following description, the stringed instrument according to the present invention does not necessarily include an electric element such as a pickup device that converts string vibration generated in each string into an electric signal. The present invention can be applied to any stringed instrument having a body structure in which the following metal pipe can be provided on the body.

  The overall structure of the stringed musical instrument according to this embodiment is the same as that of a conventional electric guitar in appearance. That is, as shown in FIG. 8, one end of each string 2, 2,... Is locked by pegs (pin spools) 4, 4,. The other end is supported by a bridge 6 fixed to the surface of the body 5, whereby the string vibration of each of the strings 2, 2... Is transmitted to the body 5 through the bridge 6. The body 5 is constituted by a solid body having a solid structure formed in a predetermined shape by one piece of wood or plywood. In the structure of the electric guitar 1 shown in FIG. 8, a tremolo arm 20 is fixed to the bridge 6, and an arming operation for swinging the tremolo arm 20 can be performed.

  The stringed instrument according to this embodiment is an electric guitar called “telecaster type”, and as shown in FIG. 1 or 2, the string vibrations of the strings 2, 2... Provided in the stringed instrument 1 having the solid body 5. Is transmitted to the body 5 through the bridge 6. One end of the sonic high conductivity element is pressed into the bridge 6 fixed to the body 5, and the sonic high conductivity element is embedded in the body 5. A metal pipe 7 is used as a highly conductive element. However, it is also possible to use a pipe made of a high-conductivity chemical synthetic material such as carbon as the sonic high-conductivity element.

  That is, in the stringed musical instrument according to this embodiment, as shown in FIG. 1 or FIG. 2, the bridge 6 of this embodiment has a tail piece 6b formed at the end of a flat plate-like bridge plate 6a. A plurality of saddles 8, 8... Are arranged in accordance with the number of strings (for example, 6). Each saddle 8 is capable of adjusting the tension of each string by an adjusting screw 9 screwed into the tail piece 6b. Each of the strings 2, 2... Attached at one end to the pegs 4, 4... Of the head portion 3 a (see FIG. 8) is a locking screw that is screwed into the saddles 8, 8. 10 and 10, the saddles 8 are inserted downward from the inside of the saddles 8, and are inserted into the vertical holes 11 formed on the body 5 side. Further, the other end of each of the strings 2, 2... Is fixed by a locking member 12 provided at the lower end of each vertical hole 11, 11.

  In the above configuration, in this embodiment, the metal pipe 7 (see FIG. 3) is embedded having a length of about two-thirds of the upper part of the vertical holes 11, 11... Formed corresponding to the number of strings. It has a configuration. The metal pipe 7 uses a metal pipe made of titanium, stainless steel, copper, or the like in addition to a true-cast pipe which is an excellent sonic high-conductivity element (that is, a material having a low vibration damping rate and a good transmission of sound vibration). Good.

  Further, the embedding depth of the metal pipe 7 is about two-thirds of the thickness of the body 5 in this embodiment. This is because the lower end of the metal pipe 7 is not exposed on the back surface of the body 5 and the body 5 In order not to affect the strength of the body 5 as much as possible, it does not prevent the depth of the body 5 from becoming more than two thirds of the thickness.

  The outer diameter of the metal pipe 7 is preferably 3 to 10 mm. However, the outer diameter of the metal pipe 7 needs to be slightly larger than the inner diameter of the vertical hole 11. It is mounted in a state of being pressed into the vertical hole 11.

  Further, as shown in FIG. 1 (a), the upper end of the metal pipe 7 is embedded in a state protruding slightly from the surface of the body 5, and at the position covering the metal pipe 7 as shown in FIG. 1 (b). By tightening and fixing the bridge 6 with the set screw 13, the upper end of the metal pipe 7 is pressed against the lower surface of the bridge 6. Therefore, even if the metal pipe 7 is not joined to the bridge 6 by welding or the like, the metal pipe 7 and the bridge 6 can be kept in a pressure contact state, and the string vibrations of the strings 2, 2,. It is possible to forcibly transmit to the metal pipe 7.

  Also, the metal pipe 7 is transmitted from six strings by being provided in the vertical holes 11, 11 at both ends of the vertical holes 11, 11... Provided according to the number of strings (for example, six). It becomes possible to transmit the string vibration of the bridge 6 to the body 5 in a well-balanced manner.

  In the present embodiment, as described above, the upper end of the metal pipe 7 is pressed into contact with the lower surface of the bridge 6, and is pressed into contact with the vertical holes 11, 11. The string vibration of the bridge 6 is efficiently transmitted in the direction along the plane of the body 5 through the metal pipe 7, and the string vibration is forcibly transmitted to the entire interior of the body 5. It becomes possible to do.

  The stringed musical instrument according to the present embodiment is an electric guitar called “Les Paul type”. As shown in FIGS. 4A and 4B, each string 2, provided in the stringed musical instrument 1 having the solid body 5, In the stringed instrument 1 that transmits the string vibrations 2... To the body 5 through the bridge 6, one end of the sonic high-conductivity element is pressed against the bridge receiving member 14 for fixing the bridge 6 to the body 5, and the sonic high-conductivity element Is embedded in the body 5, and a metal pipe 7 is used as the sonic high-conductivity element. However, also in this embodiment, a pipe made of a highly conductive chemical synthetic material such as carbon can be used as the sonic high conductivity element.

  That is, in the stringed musical instrument according to the present embodiment, as shown in FIGS. 4A and 4B, both ends of the horizontally long rod-shaped bridge piece 15 constituting the bridge 6 are bridged through the height adjusting screw 16, Are arranged in the bridge piece 15 in accordance with the six strings, and each string 2, 2,... Is arranged in a locking groove provided in each saddle 17. It is configured to be locked by 17 a and fixed by a fixing member 18 provided at a lower end portion of the body 5. It is possible to adjust the tension of each string 2 by adjusting the tightening of the adjusting screws 19, 19... Screwed to the bridge piece 15.

  In the present embodiment, in the above configuration, the bridge receiving members 14 and 14 that support the bridge piece 15 at both ends are embedded in the upper portion of the body 5, and the metal pipe 7 is formed in the extension portion in the depth direction of each bridge receiving member 14. The structure is embedded. With such a configuration, the lower end of each bridge receiving member 14 and the upper end of the metal pipe 7 are in contact with each other in a pressure contact state, and the string vibration of each string 2, 2,. It is possible to forcibly transmit to the metal pipes 7 and 7 via 14.

  Further, in this embodiment, the metal pipe 7 uses a metal pipe 7 made of titanium, stainless steel, copper, or the like in addition to a true-cast pipe excellent in acoustic conduction efficiency, as in the first embodiment. For the same reason as above, the depth is preferably about two thirds of the body 5, and the outer diameter of the metal pipe 7 is preferably substantially the same as the outer diameter of the bridge receiving member 14.

  In the present embodiment, the metal pipe 7 is provided at the installation positions of the bridge receiving members 14 and 14 that support both ends of the bridge piece 15, so that the string vibration of the bridge 6 transmitted from the six strings is generated. It becomes possible to transmit to the body 5 with good balance.

  Also in the present embodiment, as described above, the upper end of the metal pipe 7 is pressed into contact with the lower end of the bridge receiving member 14, and each metal pipe 7 is pressed into contact with the body 5, and the metal pipe 7 is further connected to the body 5. The string vibration of the bridge 6 is transmitted in the direction along the plane of the body 5 via the bridge receiving member 14 and the metal pipe 7 so that the string vibration of each string is transmitted to the body. 5 can be forcibly transmitted to the entire interior.

  The stringed instrument according to the present embodiment is an electric guitar called “Stratocaster type”, and bridges the string vibration of each string 2, 2... Provided in the stringed instrument 1 having the solid body 5 as shown in FIG. In a stringed musical instrument having a bridge block 6c that is transmitted to the body 5 via the bridge 6 and is coupled to the bridge 6 in a suspended state, a gap before and after the bridge block 6c that is accommodated with a gap in the accommodation groove 23 formed in the body 5 In this configuration, a high-acoustic-conducting element is sandwiched between 22a and 22b in a pressure contact state, and the metal pipe 7 or the metal plate 27 is used as the high-acoustic-conducting element.

  That is, as shown in FIG. 5, the structure of the bridge 6 is substantially the same as that of the first embodiment. However, the bridge block 6c is fixed in a suspended state on the lower surface of the bridge plate 6a, and the bridge block 6c is housed in the housing groove 23 formed in the body 5 with gaps 22a and 22b opened in the front and rear. Also, the bridge block 6c is formed with a required number of vertical holes 26, 26... Through which the strings 2, 2,... Are inserted, and each string 2 is fixed by a locking member 26a at the lower end of the bridge block 6c. .

  In such a configuration, the stringed musical instrument according to the present embodiment has a configuration in which the metal pipe 7 or the metal plate 27 is sandwiched in the gaps 22a and 22b between the storage groove 23 and the bridge block 6c as a sonic high-conductivity element. Furthermore, it is also possible to use a pipe or plate made of a highly conductive chemical synthetic material such as carbon as another acoustic high conductivity element. As the metal pipe 7 or the metal plate 27, it is preferable to use a metal material made of titanium, stainless steel, copper, or the like in addition to a true casting excellent in acoustic conduction efficiency. The outer diameter of the metal pipe 7 should be 3 mm or more, and the thickness of the metal plate 27 should correspond to the gap 22a or 22b.

  Also in the above-described configuration, the lower end of the bridge block 6c fixed to the bridge plate 6a and the metal pipe 7 or the metal plate 27 are joined in a pressure contact state, so that the string vibrations of the strings 2, 2,. The string vibration of the strings 2, 2,... Transmitted to the metal pipe 7 or the metal plate 27 is forcibly transmitted to the metal pipe 7 or the metal plate 27 via the bridge block 6c fixed to the bridge 6a. Can be forcibly transmitted to the inside of the body 5.

  Further, in relation to the present embodiment, FIG. 6 shows a structure that enables an arming operation. In this figure, the tremolo arm 20 is fixed to the bridge plate 6a of the bridge 6, and the end of the bridge plate 6a is fixed to the body 5 with a set screw 24a in order to enable the arming operation of the tremolo arm 20. The plate 24 is configured to be rotatable by a hinge 25.

  In addition, in the back surface recess 28 of the body 5, one end of the spring 29 is connected to a metal fitting 29a at the lower end of the bridge block 6c, and the other end is connected to a metal fitting 29b fixed to the back surface recess 28. By opening gaps 22a and 22b in front and rear of the storage groove 23 in which the block 6c is stored, the bridge block 6c can be swung back and forth during arming. By adopting a configuration in which the metal pipe 7 or the metal plate 27 is sandwiched in a pressure contact state, the string vibrations of the strings 2, 2,... Are forcibly transmitted to the metal pipe 7 or the metal plate 27 as described above, and the body 5 Can be forcibly transmitted to the inside.

  In such a configuration, the arming operation cannot be performed in a state where the metal pipe 7 or the metal plate 27 is sandwiched between the front and rear gaps 22a and 22b of the storage groove 23, but the metal pipe 7 and the metal plate 27 Since it is possible to perform an arming operation by removing, each metal pipe 7 is preferably configured to be attachable and detachable.

  In the electric guitar called `` Stratocaster type '' as described above, it is possible to produce a vibrato effect that raises and lowers the pitch by performing an arming operation with a tremolo arm provided on the bridge. In the configuration of 3, the sonic high-conductivity element such as the metal pipe 7 or the metal plate 27 sandwiched between the gaps 22a and 22b before and after the storage groove 23 needs to be removed in order to perform the arming operation.

  The fourth embodiment can perform the arming operation of the tremolo arm 20 without requiring the operation of removing the sonic high-conductivity element such as the metal pipe 7 or the metal plate 27, and is provided with the sonic high-conductivity element according to the present invention. By doing so, the timbre improvement of the string vibration is realized.

  As a structure for this purpose, as shown in FIGS. 7A and 7B, string vibrations of the strings 2, 2... Provided in the stringed instrument 1 having the solid body 5 are transmitted to the body 5 via the bridge 6. In the stringed musical instrument having the bridge block 6 coupled to the bridge 6 in a suspended state, the bridge 6 is coupled to the body 5 so as to be swingable, and a gap is formed in the receiving groove 23 formed in the body 5. The bridge block 6c is brought into contact with the end of the sonic high-conductivity element 30 fixed to the back surface recess 28 of the body 5 and the lower end of the bridge block 6c is With the structure stretched in the direction of the conductive element 30, the entire bridge 6 can be swung by arming the tremolo arm 20 fixed to the bridge 6. It is intended.

  In detail, the bridge block 6c coupled to the bridge 6 in a suspended state is fixed to the upper surface of the body 5 with a set screw 24a or the like, but is completely fixed to the body 5. Instead, the bridge plate 6a can be swung with the set screw 24a as a fulcrum by setting the set screw 24a in a fastened state.

  Further, in this embodiment, the bridge block 6c is accommodated in the accommodation groove 23 formed in the body 5 with front and rear gaps 22a and 22b, and a back surface recess 28 is formed on the back surface of the body 5, and this back surface recess One end of the sonic high-conductivity element 30 made of a metal plate or the like is fixed to the plurality of screws 31, while the side surface of the bridge block 6 c is in contact with the other end of the sonic high-conductivity element 30. In the present embodiment, the sonic high-conductivity element 30 is not limited to the metal plate as described above, but may be composed of a pipe or plate made of a highly conductive synthetic material in addition to the metal pipe.

  Further, the lower end portion of the bridge block 6 c is stretched in the direction of the sonic high-conductivity element 30 by an elastic member such as a spring 29. In such a configuration, as shown in FIG. 7B, the bridge block 6c is formed with a plurality of vertical holes 26, 26... That pass through the strings 2, 2,. A fastener 29a or a latch for fixing one end of each spring 29 between a plurality of locking grooves 26b, 26b,... A state in which the bridge block 6c is stretched in the direction of the sonic high-conductivity element 30 by providing a hole (not shown) and fixing the other end of each spring 29 to each fastener 29 fixed to the side wall of the storage groove 23. It is.

  With such a configuration, the end of the sonic high-conductivity element 30 abuts on the bridge block 6c, and the string vibrations of the strings 2, 2,... Are transmitted to the sonic high-conductivity element 30 via the bridge block 6c. It becomes possible to forcibly transmit the vibration of the high conductivity element 30 to the body 5.

  In addition, according to the present embodiment, the above structure enables the vibrato effect of swinging the entire bridge 6 by arming the tremolo arm 20 fixed to the bridge to raise and lower the pitch. Become.

  According to the string supporting method of the stringed instrument of the present invention, in the stringed instrument of the solid type body, the string vibration of each string transmitted to the bridge is forcibly transmitted to the entire body through the metal pipe, and the echo sound and the sustain of the string vibration are sustained. By improving the performance, it can be used as a string support method for a stringed musical instrument that can produce an excellent timbre.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure of the bridge periphery which concerns on Example 1 of this invention, It is sectional drawing which shows the condition which cut | disconnected the body longitudinally in the location which embedded the metal pipe (a bridge is shown by a side), (a) is bridge | bridging The situation before fixing, (b) shows the situation after fixing the bridge. It is sectional drawing of the bridge periphery which concerns on Example 1 of this invention, and is the sectional view on the AA line of FIG.1 (b). It is a perspective view of the metal pipe used for the Example of this invention. (a) is a figure of the bridge periphery which concerns on Example 1 of this invention, and is sectional drawing which shows the condition which cut | disconnected the body longitudinally in the location which embedded the metal pipe (bridge is shown by the side), (b ) Is a sectional view taken along line BB in FIG. It is sectional drawing which shows the condition which cut | disconnected the body to the vertical direction regarding the bridge periphery which concerns on Example 3 of this invention (a bridge is shown by a side). It is sectional drawing of the bridge periphery which concerns on the structure which actualized Example 3 of this invention, and is sectional drawing which shows the condition which cut | disconnected the body longitudinally. It is a figure of the bridge periphery which concerns on Example 4 of this invention, (a) is sectional drawing which shows the condition which cut | disconnected the body of the bridge periphery in the vertical direction, (b) looks up the accommodation groove | channel of a bridge body from the bottom face It is a figure which shows the situation. It is a top view which shows the external appearance of the electric guitar of the conventional solid type body.

Explanation of symbols

1 Stringed instruments (electric guitar)
2 string 3 neck
3a Head 4 pegs (thread winding)
5 Body 6 Bridge 6a Bridge plate 6b Tail piece 6c Bridge block 7 Metal pipe (acoustic high conductivity element)
8 Saddle 9 Adjustment screw 10 Locking screw 11 Vertical hole 12 Locking member 13 Set screw 14 Bridge receiving member 15 Bridge piece 16 Adjustment screw 17 Saddle 17a Locking groove 18 Fixing member 19 Adjustment screw 20 Tremolo arm 21 Tremolo device 22a, 22b Gap 23 Storage groove 24 Support plate 24a Set screw 25 Hinge 26 Vertical hole 26a Locking member 26b Locking groove 27 Metal plate (sonic high-conductivity element)
28 Back surface recessed part 29 Spring 29a, 29b Stop metal fitting 30 Sonic high conductivity element 31 Set screw

Claims (1)

In a stringed instrument that transmits string vibration of each string provided to a stringed instrument having a solid body to the body via a bridge,
One end of the sonic high-conductivity element is pressed against the bridge fixed to the body ,
The sonic high-conductivity element is a metal pipe or a pipe made of a high-conductivity chemical synthetic material, and the pipe is embedded in a press-contact state to the middle of a vertical hole formed to insert each string supported by a bridge into the body. By
A string support method for a stringed instrument, wherein the string vibration of the bridge is forcibly transmitted to the entire interior of the body through the pipe .