JPS589268Y2 - Shamisen thread winding loosening device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a shamisen, particularly a practice shamisen, for preventing the thread winding from loosening.

A ridge part is integrally provided between the Ebi-o and the formal dress provided on one side of the neck, facing each other, to form the thread warehouse, and a toothed flange ring for inserting the thread winding is fitted into this ridge part. equipped.

The neto hanger on the body, which is installed on the other side of the neck, has a string attached to the protrusion and a thread attached to the thread, and the instrument is played by turning the thread and tuning the strings.

However, the pegs loosen during a performance, causing them to go out of tune, so they have to be adjusted, but since it is difficult for beginners to tune the strings, it is strongly desired that the pegs do not become loose during a performance. The reality is that

The present invention was devised in response to the above-mentioned needs, and is intended to prevent the peg from loosening during performance and to enable string tuning.

Hereinafter, the configuration and effects of the present invention will be explained with reference to the drawings.

The attached drawings show the main parts of the present invention, and in FIGS. 1 and 2, the reference numeral 1 indicates a shamisen peg, which has a tapered shape and a circular cross section at the front end. The grip has a hexagonal cross section.

Wood or hard synthetic resin materials are generally used for practice shamisen.

A hooking piece 3 is provided on the gripping surface of the thread winding via a leaf spring 2.

The bobbin winder 1 configured in this way has a threaded section 4 constituting a thread warehouse.
It is inserted into the toothed flanged ring 5 for inserting a thread winding.

The flanged ring is made of metal, and small teeth are intermittently carved on the outer peripheral surface of the flanged ring.

The tip of the locking piece 3 is tapered so as to engage with this tooth trough.

Therefore, the material of the hanging piece is preferably metal in consideration of strength.

In addition, consideration is given to rounding the corner edges to prevent fingers from being injured by the hook.

Due to the repulsive force of the leaf spring 2, the tip of the locking piece 3 is engaged with the tooth valley carved on the outer peripheral surface of the collar of the bobbin winding insertion ring 5, thereby preventing the bobbin winding 1 from loosening. be done.

Furthermore, when tuning the string, by grasping the locking piece 3 and the peg together, the distal end of the locking piece rises and disengages using the leaf spring 2 as a fulcrum, so that the peg can be rotated to tune the string.

The mounting position of the leaf spring 2 is a fulcrum position that allows the hanging piece 3 to rise and fall, and the bottom of the leaf spring is fixed to a groove bored in a part of the bobbin or to the bobbin surface, and the top of the spring is fixed to the back side of the hook piece.

The height of the leaf spring is determined by the thickness of the thread winding and the size of the collar of the thread winding insertion ring.

FIG. 3 shows an example of a ring 5 with a toothed flange for inserting a bobbin winding, in which toothing is provided intermittently on the outer surface of the collar. This is an example in which a locking piece 3 is provided, and the tip of the locking piece is engaged between the teeth provided on the bobbin winding insertion ring 5 by the urging of a leaf spring.

In this case, a coil spring may be considered, but since the spring is distorted by the loosening force of the thread, it is necessary to provide two or more coil springs with different winding directions.

Considering the installation and distortion of the spring, a plate spring is preferable.

Two or more hanging pieces 3 can be provided as necessary.

As a modification of the structure of the present invention, one end of the hooking piece 3 is cut out in a bifurcated shape, so that each of the forked protrusions 2a can be fed out between the teeth of the toothed flange ring for inserting the bobbin winder 1. It can be provided on the grip surface.

In this example, instead of the leaf spring, a slide member 2' is inserted into the gripping surface of the bobbin 1 and fitted into the dovetail groove A.

FIGS. 4 and 5 show one example, and the same reference numerals as those in FIG. 1 appear in the same way.

Furthermore, some shamisen have a pincushion insertion ring that does not have teeth on the flange and is fitted in the edge.

In this case, it is used in place of the toothed flanged ring.

According to the present invention, the peg will not come loose during a performance, the string can be tuned, and it can be easily modified into an existing peg, providing practical effects.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an explanatory drawing showing the main parts thereof, FIG. 2 is a plan view thereof, FIG. 3 is an explanatory drawing showing another embodiment, and FIG. FIG. 5, an explanatory drawing showing another example of the configuration, is a plan view thereof. 1...pin spool, 2...plate spring, 3...
...Latching piece, 4...Adhesive part, 5...
Ring with toothed flange.

Claims (1)

[Scope of utility model registration request] It consists of a hooking piece 3 provided on the gripping surface of the bobbin 1 via a leaf spring 2, and a toothed slot for inserting the bobbin bobbin fitted into the tip of the hooking piece and the rim 4 that constitutes the thread store. A shamisen pincushion loosening stopper that engages the interdental part of a flange ring 5.