JPH073436Y2 - Winding tool for string winder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to a winding tool for a thread winding device provided in a stringed instrument such as a guitar.

<Prior Art> A stringed instrument such as a guitar is provided with a thread winding device for spreading the strings, and a large number of the thread winding devices are arranged in parallel at the head portion of the stringed instrument.

Such a bobbin winder has a take-up shaft for winding a string and a manual knob for rotating the take-up shaft. By rotating the knob with fingers, the string is wound on the take-up shaft. It is configured to be wound up.

Therefore, in this type of stringed instrument, it is necessary to sequentially operate a large number of bobbin winders in order to stretch the string or adjust the tension of the string, which is a troublesome task. I got it.

For this reason, conventionally, the above-described bobbin winding device is driven by a manually operated winding tool, whereby the string is quickly wound.

As shown in FIG. 6, such a take-up device is provided with a bobbin winder 1
It has a long-mouthed receiving portion 3 integrally formed of synthetic resin or the like so that the knob piece 2 can be fitted therein, and a handle 4 which pivotally supports one end in the longitudinal direction of the receiving portion 3. After inserting the knob piece 2 into the receiving portion 3, the knob piece 4 is rotated by rotating the handle 4 so that the winding shaft 5 moves in the chord winding direction or the string unwinding direction. It is configured to rotate to.

<Problems to be Solved by the Invention> In the conventional winding tool, since the shape of the receiving portion 3 into which the knob 2 is fitted is constant, when the size of the knob 2 becomes large, the receiving portion 3 is fixed inside the receiving portion 3. Therefore, there is an inconvenience that it is not possible to share one winder between a stringed instrument of a different type, for example, a bass guitar and an electric guitar, and therefore a winder. There is a problem in that it is troublesome to separately prepare the above-mentioned items for various string instruments or to store several kinds of winding tools.

<Means for Solving the Problems> In the winder of the present invention, the receiving portion 10 that receives the knob piece 2 of the bobbin winding device 1 is composed of two outer wall pieces 12 and 13 having an L-shaped cross section.

One of the outer wall pieces is connected to the connecting piece 30 as the base piece 12, and the other is slidably attached to the base piece 12 as the movable piece 13.

As shown in FIG. 5, the base piece 12 and the movable piece 13 are combined so that the short side 123,133 of the base 12 and the movable side 13 are brought close to the other long side 124,134 so as to form a long opening. The movable piece 13 is fixed to the base piece 12 by a fixed screw 15, and the fixed screw 15 is extended so that the movable piece 13 can be slidably displaced with the long side 134 parallel to the base piece 12. It is inserted in the hole 131.

<Action> Since the winder of the present invention is such a one, if the movable piece 13 is slidably displaced as shown by the chain line in FIG. 5, the opening length of the receiving portion 10 can be increased, and accordingly, the receiving portion 10 can be extended. The shape of the receiving chamber 11 can be changed according to the size of the tab on the side of the bobbin winder accommodated in the portion 10.

<Embodiment> FIG. 1 is a perspective view of the winder of the present invention, showing a receiving portion 10, a handle 20 and a connecting piece 30.

The receiving part 10 has a long receiving chamber 11 having a front opening so that the knob 2 of the bobbin winding device 1 can be inserted therein. The receiving chamber 11 changes its length in the longitudinal direction. It is configured to do things.

For this reason, the receiving portion 10 is, as shown in FIGS. 1 and 4,
Two outer wall pieces having an L-shaped cross section are combined in a butt shape with each other, and one of the outer wall pieces is used as a base piece 12, which is connected to the connecting piece 30 by a support shaft 14, Piece
On the other hand, the other outer wall piece is used as the movable piece 13 for the base piece 12.
Is slidably attached to.

The movable piece 13 is provided with a long hole 131, and the fixed screw 15 is inserted into the long hole 131, and the fixed piece 15 fixes the movable piece 13 to the position after the sliding displacement.

The base piece 12 is provided with upper and lower guide grooves 121 and 121 ', and two upper and lower projections 132 and 132' which are provided on the inner surface of the movable piece 13 are fitted into the guide grooves 121 and 121 '.

As shown in FIG. 5, the movable piece 13 has its short side 133 approaching the end of the long side 124 of the base piece 12, and the base piece 12 has
The short side 123 of the movable side 13 is assembled so as to be close to the end of the long side 134 of the movable side 13, so that both longitudinal walls of the receiving chamber 11 are the length of the base piece 12 and the movable piece 13. The walls on the other two sides of the receiving chamber 11 formed on the side sides 124 and 134 are the movable piece 13 and the base piece.
It will be formed on the shorter side 133,123 with 12.

The movable piece 13 can be slidably displaced while keeping the long side 134 thereof parallel to the long side 124 of the base piece 12 as indicated by the chain line in FIG. 5, whereby the opening length of the receiving chamber 11 is increased. Is increased.

When the opening length is increased in this way, the short side 123,133 of the base piece 12 and the movable piece 13 and the other long side 124,134 in contact with this are shown in FIG. A space S as shown is generated, but this does not cause any trouble in fitting the knob.

As shown in FIG. 2, the support shaft 14 is fixed to the base piece 12, and the fixing screw is provided at the center of the base portion of the base piece 12.
It has a screw hole 141 into which 15 is screwed.

The grip 20 has one end of the connecting piece 30 rotatably supported at the tip thereof, so that the connecting piece 30 has a connecting hole.
31 is provided, the reduced end 21 of the handle 20 is loosely fitted in the connecting hole 31, and the reduced end 21 is rotatably connected by the set screw 22.

An end portion of the connecting piece 30 opposite to the connecting hole 31 is formed in a connecting portion 32 for rotatably and non-detachably supporting the support shaft 14 of the receiving portion 10. As shown in FIGS. 2 and 3, a bearing portion 321 that inserts the support shaft 14, a retaining ring 322 that retains the support shaft 14, and a bottom surface 323 formed on the side facing the receiving portion 10. Are provided, and an appropriate number of, for example, four small holes 324 are provided on the bottom surface thereof.

A torque adjusting mechanism 40 is provided in the connecting portion 32 of the connecting piece 30, and the torque adjusting mechanism 40 includes a connecting means 41 for connecting the receiving portion 10 and the connecting piece 30 by a frictional force, and the connecting means 41. The adjusting means 42 adjusts the frictional force of the means 41 by an external operation.

The coupling means 41 couples the receiving portion 10 and the connecting piece 30 with each other by a predetermined frictional force, and when the strength of the rotational force with respect to the receiving portion 10 exceeds the frictional force, the receiving portion is received. Ten
Is set so as to release the connection between the connecting piece 30 and the connecting piece 30, and in the embodiment, the friction plate 411 fixed to the support shaft 14 of the receiving portion 10, for example, a convex line is sequentially provided in the circumferential direction to form an uneven surface. The formed disc and the connecting portion 32 so as to come into contact with the plate surface of the friction plate 411.
The pusher 412 protruding from the small hole 324, the spring 413 that urges the presser 412 toward the friction plate 411, and the bearing 321 of the coupling portion 32 are fitted and attached so as to serve as a fulcrum of the spring 413. And an annular pressing plate 414.

In the embodiment, the adjusting means 42 is a knob dial 421 screwed to the bearing portion 321 so as to press the pressing plate 414.
And a pressing portion 422 protruding inside the knob dial so as to come into contact with the pressing plate 414.The dial 421 is rotated to move the pressing portion 422 forward and backward in the direction of the pressing plate 414. Accordingly, it is designed to increase or decrease the pressing force of the spring 413.

Therefore, according to this embodiment, after the pressing force of the pressing element 412 against the friction plate 411 is determined by the adjusting means 42, the grip 20
When the rotating shaft is rotated, the rotational movement of the connecting piece 30 centered on the support shaft 14 is transmitted to the friction plate 411 via the pressing element 412, and this force causes the support shaft 14 to rotate. And the receiving part 10 fixed to this are rotated. When the string is tense due to the rotation of the receiving portion 10 as described above, the rotating torque is increased accordingly, and finally, the rotating force exceeding the predetermined frictional force is applied to the presser 412. It will be a matter.

In this state, the presser 412 cannot connect the friction plate 411 and only moves while rubbing the uneven surface of the friction plate 411, so that the receiving portion 10 is stationary without receiving the rotational force. , The string will be stretched with a predetermined tension.

In the embodiment described above, the base piece 12 is connected to the connecting piece 30 via the torque adjusting mechanism 40, but in the winder of the present invention, the base piece 12 may be directly connected to the connecting piece 30. In this case, the base piece 12 and the connecting piece 30 may be molded as one body as in the conventional case.

<Effect of the Invention> The winder of the present invention displaces the movable piece 13 in this way,
Since the opening length of the receiving portion 11 formed in 10 can be changed, it can be used in common for various bobbin winders having different lengths of the picking pieces, and therefore 1 for various string instruments of different types and structures. Since it is sufficient to prepare a number of winding tools, there is an effect that the conventional inconvenience in use and storage can be eliminated.

[Brief description of drawings]

Fig. 1 is a perspective view of the winder of the present invention, and Fig. 2 is Fig. 1-2.
2 is a cross-sectional view taken along line 3-2 of FIG. 2, FIG. 4 is an exploded perspective view of the winder of the present invention, and FIG. 5 is a main part of the winder of the present invention. A side view and FIG. 6 are perspective views of a conventional winding tool. In the figure, 10 is a receiving part, 11 is a receiving chamber, 12 is a base piece, 13 is a movable piece, 15 is a fixed screw, 20 is a handle, and 30 is a connecting piece.

Claims (1)

[Scope of utility model registration request] 1. A receiving portion, into which a pin of a bobbin winder provided on a stringed instrument is inserted, and a connecting piece having the receiving portion at one end thereof.
A base having an L-shaped section which is continuous with the connecting piece, and a movable section having an L-shaped section which is slidably attached to the base piece. A piece, and a fixed screw for fixing the movable piece to the base piece at a desired position, the base piece and the movable piece, with their long sides facing each other so as to form a long receiving chamber, The short side of one side is combined so as to contact the end of the long side of the other, and the long side of the movable piece is slidably displaced while keeping the parallel state with the long side of the base piece to open the opening of the receiving chamber. A winding tool for a string winding device of a stringed instrument configured so as to increase the pitch.