JPH0660891U - String tension control device for string instruments - Google Patents

Abstract

(57) [Summary] [Purpose] Tension or loosen a plurality of strings in various string instruments at the same time. [Structure] In a guitar, mandolin, or other stringed instrument in which a plurality of strings are wound around a head bobbin at one end and fixed at the other end in a body tailpiece, the tailpiece is used as a tensioner and A rotary operation body that is fitted into the internal space of the slide guide base fixed and integrated so that it can perform only a sliding action along the longitudinal direction of the string, and is rotatably supported by the slide guide base. The tensioner is pivotally connected and the turning operation of the turning operation body causes the tensioner to slide so that a plurality of strings are simultaneously tensioned or loosened and the tensioned state is locked.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a string tensioning device for a guitar, a mandolin, and various other stringed musical instruments, and in particular, it is designed so that a plurality of strings can be simultaneously tensioned or relaxed.

[0002]

[Prior art]

 For example, as shown in FIG. 16, a guitar, which is a kind of stringed instrument, has a body (10) forming a resonance box, a neck (11) of a certain length that is integrally projected from the body (10), and the neck (11). ) Head (12) and a plurality of bobbins (13) installed in parallel so as to be rotatable.

Then, one end of the string (14) is wound around each of the bobbins (13), and the other end of the string (14) is also integrated with the body (10) by a tail piece (15). ) Is attached and fixed. (16) is a plurality of frets traversing the neck (11), (17) is a string guide parallel to the frets (16), and (18) is also a bridge.

As suggested by the figure, the spool (13) is a rotary operation type consisting of a worm (19) continuous to the knob and a worm wheel (20) meshed with the worm (19). Is also known.

[0005]

[Problems to be solved by the device]

 However, in the above conventional product, when loosening the strings (14) in order to prevent peeling of the tail piece (15) and warp of the neck (11) during storage, the spool (13) is wound one by one on each string. Must be rotated in the return direction, which is extremely complicated.

Also, when the upper string (14) of the performance is to be tensioned, the spool (13) must be rotated in the tightening direction for each string, which is of course very troublesome and accurate. It is also difficult to perform such tuning. It is difficult to adjust the pitch (tone) of the string (14) to be high or low accurately and quickly, which is inconvenient for an amateur.

[0007]

[Means for Solving the Problems]

 The present invention is intended to improve such a problem. Due to the structure for this purpose, a plurality of strings are wound around a head bobbin at one end, and at the other end, a guitar in which the strings are latched and fixed to the tail piece of the body. For mandolin and other stringed instruments, the above-mentioned tailpiece is used as a tensioner, and is fitted into the internal space of the slide guide base fixedly integrated with the body so that only the sliding action along the longitudinal direction of the string can be performed, and the slide A rotary operation body rotatably supported by the guide base and the tensioner are pivotally connected to each other, and the operation of the rotation operation body causes the tensioner to slide so as to slide a plurality of strings. It is characterized in that it is set so that all of them can be simultaneously tensioned or relaxed and that the tensioned state can be locked.

[0008]

[Action]

 According to the above-mentioned configuration of the present invention, since the tensioner in which the other end (tail end) of the string is slidably locked and fixed, and the rotary operation body pivotally supported by the slide guide base are pivotally connected, When the turning operation body is turned, the turning action is converted into the linear slide movement of the tensioner, and the tensioner slides along the slide guide base, so that a plurality of strings are automatically moved at once. You will be instantly tense and will be locked under that tension.

Therefore, once the string is locked in such a tensioned state, the string can be tuned to a proper pitch (tone) by rotating the strings one by one, and the string can be played. When storing a stringed instrument, the tuning operation body is returned and rotated in the opposite direction while keeping the tuning state of the string as it is. Then, the tensioner slides back to automatically slam the string. It will be momentarily relaxed.

Therefore, in the case of playing again, it is sufficient to rotate the rotating operation body in the tension direction of the strings as in the above case, and it is not necessary to perform troublesome tuning every time each of the strings is operated. , You can improvise as it is.

[0011]

【Example】

 1 to 6 relate to a first embodiment of the present invention applied to a guitar, and (21) shows a tailpipe of the conventional product shown in FIG. It is a tensioner corresponding to the base (15), and includes a locking piece (22) for releasably locking and fixing one end (tail end) of the string (14), as well as the locking piece (22). ) To the direction in which one end of the string (14) is extended, the slide plate (23) is also provided so as to extend continuously, and is shaped into a generally T-shape in plan view.

That is, the conventional tailpiece (15) serves as a fixing member integrated with the body (10) as a fixing member, and in contrast to locking one end of the string (14), the tensioner (21) is As will be described later, the sliding action along the longitudinal direction of the string (14) can also be performed.

The other end of the string (14) is wound around the bobbin (13) of the head (12) in the same manner as the conventional product of FIG. 16, and the bobbin (13) is wound one by one. It goes without saying that the turning operation adjusts the tension to an appropriate tension.

Reference numeral (24) is a slide guide base formed in a flat rectangular tube shape in order to form a receiving tunnel for the slide plate (23) in the tensioner (21), the back surface of which is adhesive or screws, It is attached to and integrated with the surface of the body (10) by other fixing means.

Reference numeral (25) is a left and right pair of partition walls that divide the inside of the slide guide base (24) into upper and lower parts, and the slide plate (23) of the tensioner (21) is illegally tampered with in the lower space thereof. It is fitted so that it can perform only a sliding action along the longitudinal direction of the strings (14) without the risk of sideways swinging.

On the other hand, in the upper space communicating with the lower space in the slide guide base (24), a disk-shaped rotating operation body (26) is rotatably moved around its fulcrum by a vertical shaft (27). In addition to being pivotally attached, the eccentric part of the rotary operation body (26) and the slide plate (23) of the tensioner (21) are also pivotally connected via a connecting piece (28).

When the rotating operation body (26) is rotated around the fulcrum of the vertical shaft (27), the rotating action is converted into a linear slide motion of the slide plate (23). That is why. Reference numeral (29) is a handle led out from the circumferential surface of the rotating operation body (26) to the outside of the slide guide base (24), which is detachable from the rotating operation body (26). It can also be appropriately removed from the rotary operation body (26).

Further, (30) is a claw receiving notch provided on the circumferential surface of the rotating operation body (26), and (31) is a lock claw which is detachably engaged with the notch (30). The fulcrum shaft (32) parallel to the vertical shaft (27) is also rotatably attached to the slide guide base (24).

Reference numeral (33) is a spring member for urging the locking claw (31) to always engage with the claw receiving notch (30) of the rotating operation body (26), whereby the rotating operation body (2). Although 6) can be freely rotated in the tightening and tightening direction of the string (14), it is prevented from returning and rotating in the opposite relaxing direction.

Reference numeral (34) is an operating lever integrally guided from the lock claw (31) to the outside of the slide guide base (24), whereby the lock claw (31) is connected to the panel member (33). It is also possible to release the locked state with the rotating operation body (26) by rotating it while resisting the urging force, but this operation lever (34) can be omitted for installation. It doesn't matter.

According to the first embodiment having the above-mentioned configuration, the slide plate (23) of the tensioner (21) having the one end (tail end) of the string (14) slid and locked therein, and the rotating operation body (26). The eccentric part of the slide guide base (24) is pivotally connected to the eccentric part of the slide guide base (24), as shown in FIGS. When the handle (29) is rotated about the fulcrum of the vertical axis (27) by a fixed angle (θ), the rotating action is converted into a linear sliding motion of the slide plate (23), The slide plate (23) slides along the slide guide base (24), and a plurality of strings (14) are tightened at once and automatically.

The tension state is locked by the locking action of the locking claw (31) with respect to the claw receiving notch (30) of the rotating operation body (26), so that the rotating operation body is locked. There is no risk that the string (14) will loosen so that (26) will accidentally return and rotate.

Then, once locked in such a tensioned state, the string (14) is tuned to an appropriate pitch (tone) by rotating the spool (13) one by one, and the guitar is tuned. It is used for performance.

When storing the guitar, the operation lever (34) of the locking claw (31) is moved from the tensioned state of FIGS. 2 and 3 while maintaining the tuning state of the string (14) as it is. Is rotated against the spring member (33) to release from the claw receiving notch (30) of the rotating operation body (26), or the handle (29) of the rotating operation body (26) is also made of the spring material. The claw receiving notch (30) and the locking claw (31) are released from the locked state by directly rotating against the (33).

Then, the rotating operation body (26) is automatically returned and rotated as shown in FIGS. 4 and 5, and the slide plate (23) of the tensioner (21) is slid back. Therefore, the string (14) suddenly relaxes automatically. As a result, at the time of the next guitar performance, it is sufficient that the turning operation body (26) is turned up again by tightening the string (14) in the tension direction by the handle (29) as in the above. There is no need to perform a troublesome tuning every time 14). You can start playing improvisationally. In that case, by removing the handle (29) of the rotating operation body (26), the comfortable performance can be performed like the conventional product without being disturbed by the handle (29).

In the first embodiment, the inside of the slide guide base (24) is divided into upper and lower parts, and the slide plate (23) of the tensioner (21) and its rotating operation body (26) are in a stacking relationship. In this state, both of them are pivotally connected by a relatively short connecting piece (28), and the turning angle (θ) of the turning operation body (26) is set to about 180 degrees. .

However, as is apparent from the second embodiment of FIGS. 7 and 8, the slide plate (23) of the tensioner (21) and the disc-shaped turning operation body (26) are arranged in a non-stacked order. As a state, the slide guide base (24) is accommodated in one common internal space, and both are pivotally connected by a relatively long connecting piece (28), and at the same time, the rotating operation body (26). The rotation angle (θ) may be set to a small value of about 90 degrees.

Since the other structure and operation of the second embodiment are substantially the same as those of the first embodiment, it is necessary to enter the corresponding reference numerals to FIGS. 1 to 6 in FIGS. Therefore, the detailed description is omitted.

Next, FIGS. 9 to 13 show a third embodiment of the present invention, in which a rotary operation body (26a) for sliding the slide plate (23) of the tensioner (21) is seen in a plan view. And is rotatably and pivotally attached to the slide guide base (24a) by a horizontal shaft (27a).

That is, as shown in FIGS. 9 to 13, the slide guide base (24a) is shaped like a flat channel with an open surface, and the slide plate (21) of the tensioner (21) is formed in the inner space of the mold. 23) is also fitted so as to perform only a sliding action along the longitudinal direction of the string (14) without fear of lateral swinging.

Reference numeral (35) denotes a pair of left and right bearing masts that are integrally provided upright from a middle portion of the slide guide base (24a), and a horizontal shaft (27a) that penetrates both bearing masts (35) The base end of the rotary operation body (26a) is pivotally supported. Reference numeral (29 a) is a handle attached to the tip of the rotary operation body (26 a), and the fingertip of the operation hand is hung on this to move the rotary operation body (26 a) around the fulcrum of the horizontal shaft (27 a). Can be undulated.

Further, (36) is a pair of left and right locking hooks that are integrally erected from the middle of the slide plate (23) of the tensioner (21), and (28a) is a quadrangular frame section in plan view. Of the connecting ring, the base end of which is pivotally connected to the midway part of the rotary operation body (26a), and the tip end of which is also detachable from both locking hooks (36). It is locked.

Therefore, according to the third embodiment having the above-mentioned configuration, the connecting ring (36) is attached to the engaging hook (36) of the tensioner (21) in which one end (tail end) of the string (14) is engaged and locked. 28a) is locked, and the rotation operation body (26a) is rotated around the fulcrum of the horizontal shaft (27a) as shown in FIGS. 9 to 12, and is moved to the slide guide base (24a) from above. By laying it down so as to cover it, the plurality of strings (14) can be tensioned all at once and automatically.

In the tensioned state, as shown in FIGS. 10 and 11, the locking point (A) of the connecting ring (28a) with respect to the locking hook (36) and the rotation of the rotating operation body (26a). The acting force point (B) of the rotary operation body (26a) is a certain amount of eccentricity (H), rather than the consideration point (Y-Y) that linearly connects with the horizontal axis (27a) that is the fulcrum. The slide guide base (24a) sinks in the direction in which it exists, so that the turning operation body (26a) is flattened together with the slide guide base (24a), so that the slide guide base (24a) is accidentally raised. It is kept in a locked state in which it does not rotate back and there is no risk of loosening of the strings (14).

Further, as shown in FIGS. 9 to 12, from the locked state in which the string (14) is tensioned, the rotating operation body (26a) is raised around the fulcrum of the horizontal shaft (27a) as shown in FIG. For example, as the turning operation body (26a) returns and turns, the tensioner (21) slides back along the longitudinal direction of the string (14). Will be relaxed.

As a result, as described above based on the first embodiment, it is not necessary to tune each string (14) by rotating the bobbin (13) one by one. Based on this, the guitar can be stored and improvised.

Further, FIGS. 14 and 15 show a fourth embodiment of the present invention, in which a pair of left and right is placed on a horizontal shaft (27a) which serves as a fulcrum of rotation of the rotary operation body (26a). A pair of right and left rack gears (39), which are fixed to the pinion gear (37) so as to be integrally rotatable, and which are constantly meshed with the pinion gear (37), are arranged on the slide plate (23) of the tensioner (21). I have set up. Reference numeral (40) is a support shaft for attaching the idle gear (38) to the bearing mast (35) of the slide guide base (24a).

Therefore, when the turning operation body (26a) is laid down around the fulcrum of the horizontal shaft (27a) in the same manner as in the third embodiment, the slide plate (23) of the tensioner (21) moves. While the string (14) is tensioned by the sliding action, and when the rotating operation body (26a) is also erected, the slide plate (23) slides back to loosen the string (14). The initial purpose of the present invention can be achieved.

Since the other constructions and operations of the fourth embodiment are substantially the same as those of the third embodiment, only the corresponding reference numerals to those of FIGS. Although the detailed description thereof is omitted, it goes without saying that the present invention can be widely applied to not only the guitar of the illustrated embodiment but also the mandolin and various other stringed instruments.

As described above, in the present invention, a plurality of strings (14) are respectively wound around the bobbin (13) of the head (12) at one end and the tail pieces (15) of the body (10) at the other end. In a guitar, a mandolin, or other stringed instrument that is fixedly locked to the body, the inner space of the slide guide base (24) (24a) fixedly integrated with the body (10) using the tail piece (15) as a tensioner (21). To the sliding guide bases (24) and (24a) so that they can be slid only along the longitudinal direction of the strings (14). ) (26a) is pivotally connected to the tensioner (21), and the tensioner (21) is slid by the rotation operation of the rotation operators (26) (26a). It is set so that a plurality of strings (14) can be simultaneously tensioned or loosened at the same time and the tensioned state can be locked, so that the problem of the prior art described based on FIG. 16 is surely improved. There is an effect that anyone can play and use it conveniently.

That is, according to the above-mentioned configuration of the present invention, the plurality of strings (14) serve as a tensioner (21) in which a tail end of the string (14) is slidably locked and fixed, and a slide guide rail of the tensioner (21). Since the rotating operation bodies (26) (26a) pivotally supported by the slide guide bases (24) (24a) are pivotally connected via the connecting piece (28) and the connecting ring (28a), When the rotary operation body (26) (26a) is rotated, the tensioner (21) slides along the longitudinal direction of the string (14) so as to respond to this, and a plurality of the strings (14) are moved at once. In addition, it is automatically momentarily tightened, and the locked state is maintained.

Therefore, once the string (14) is locked in such a tensioned state, the string (14) is tuned to an appropriate pitch (tone) by turning the spool (13) one by one. While maintaining the state, the turning operation bodies (26) (26a) are turned in the opposite direction and turned, and the strings (14) are loosened and loosened by the sliding back tensioner (21). And it can be stored.

As a result, there is a risk that the tail piece (15) may be separated from the body (10) or the neck (11) may be bent due to the tension of the string (14) during storage of the stringed instrument. Therefore, the durability of the stringed instrument can be maintained.

Moreover, in the case of playing again, if the turning operation bodies (26) and (26a) are tightened and turned in the direction in which the strings (14) are tense, a plurality of strings (14) are turned. Since the book will be tensioned all at once and automatically while maintaining the appropriate tuning state, there is no need to tune each time the performance is started, which is extremely convenient especially for amateurs. It can be said that it is effective for improvisation.

[Brief description of drawings]

FIG. 1 is an overall schematic perspective view showing a first embodiment of the present invention applied to a guitar.

FIG. 2 is an enlarged plan view showing a tension state of a string by the tension operating device extracted from FIG.

FIG. 3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a plan view showing a relaxed state of the strings corresponding to FIG.

5 is a sectional view taken along line 5-5 of FIG.

6 is an enlarged cross-sectional view taken along line 6-6 of FIG.

FIG. 7 is a plan view corresponding to FIG. 2, showing a second embodiment of the present invention.

8 is a sectional view taken along line 8-8 of FIG.

FIG. 9 is a plan view corresponding to FIG. 2 showing a third embodiment of the present invention.

FIG. 10 is a side view of FIG. 9.

11 is a cross-sectional view taken along line 11-11 of FIG.

12 is a sectional view taken along line 12-12 of FIG.

13 is a side sectional view showing a relaxed state of the strings corresponding to FIG. 11. FIG.

FIG. 14 is a plan view corresponding to FIG. 9 showing a fourth embodiment of the present invention.

15 is an enlarged cross-sectional view taken along line 15-15 of FIG.

FIG. 16 is an overall schematic perspective view showing a conventional guitar.

[Explanation of symbols]

 (10) -Body (12) -Head (13) -Winding (14) -String (15) -Tailpiece (21) -Tensioner (24) -Slide guide base (24a) -Slide guide base (26) -Turning Motion control body (26a) / Rotation control body

Claims (1)

[Scope of utility model registration request] 1. A plurality of strings (14) are respectively wound around a bobbin (13) of a head (12) at one end, and fixed to the tailpiece (15) of a body (10) by snapping at the other end. In a guitar, mandolin, or other stringed instrument, the tail piece (15) is used as a tensioner (21) into the inner space of the slide guide bases (24) (24a) fixedly integrated with the body (10), and the string (14) of the string (14). A rotating operation body (26) (26a) that is fitted so as to perform only a sliding action along the longitudinal direction, and is rotatably supported by the slide guide base (24) (24a), and the tensioner ( 21) is pivotally connected to the string (1) and the turning operation body (26) (26a) is turned to slide the tensioner (21).
A string tension operation device for a stringed instrument, characterized in that a plurality of pieces of 4) are set so that they can be simultaneously tensioned or relaxed and the tensioned state can be locked.