JPH048475Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a finger rest that is attached to a recorder for music education.

[Conventional technology]

To play a recorder, the tone holes are opened and closed while holding the tube between the fingertips, but a finger rest is sometimes provided on the back of the tube to make it easier to hold the tube. As a conventional finger rest,
When manufacturing the recorder tube, the finger rest is formed integrally with the tube, or the finger rest is formed separately from the tube and is fixed to the surface of the tube by adhesive (Utility Model Publication No. 62-32309) etc. are known.

The recorder is widely used as an educational instrument not only in Japan but also in other countries around the world, and is used for music learning in the lower grades of elementary school in all countries. When playing a musical instrument, it may be difficult to operate the tone holes with your fingertips while holding the tube body, so in such cases, providing a finger rest on the tube body will be a great help in learning how to use the instrument. Helpful.

[Problems that ideas should solve]

As mentioned above, it has been known in the past to provide a finger rest on a recorder, but since this type of conventional finger rest is integrally fixed to the tube body, the conditions for the finger rest position vary depending on the individual. Despite these differences, there is a drawback in that it is not possible to freely select an easy-to-use position for the finger rest. In addition, the finger rest shown in Utility Model Publication No. 62-32309 allows you to temporarily fix the finger rest to the tube body and select a position that suits you.
After selecting the position, the finger hook part is fixed to the pipe body with adhesive, so it is difficult for children in lower grades to select the position and fix it with adhesive.
Furthermore, once the device is fixed with adhesive, the finger hook position cannot be changed, which makes it difficult to use.

[Means to solve the problem]

In order to solve the above-mentioned conventional problems, the present invention allows for easy attachment by freely selecting the finger hooking position even on the conical tube body of the recorder, and also provides sufficient clamping force after being attached. The object of the present invention is to provide a finger rest that can be stably fixed to a tube body and whose attachment position can be freely changed as necessary.

As a specific means for that purpose, the present invention is a finger hook made of synthetic resin to be fitted into the recorder tube, which has a bottom surface of a predetermined length along the length direction of the recorder tube and both sides. The tubular body clamping part has an arcuate cross section and a thumb support part that protrudes below the bottom of the clamping part and has a surface parallel to the arcuate cross section of the clamping part. The portion has an inner diameter that is slightly smaller than the outer diameter of the recorder tube such that both side surfaces can tightly pinch the outer peripheral surface of the recorder tube by a spring force. The thumb support part straddles both sides of the tubular body holding part, and the thumb support part is formed into an arc shape that faces each other, and the length of the arc is larger than the radius of the outer circumferential surface of the tubular body. It is characterized by having a predetermined width.

[Effect]

In the finger rest according to this invention, a tube clamping part with arc-shaped both sides is fitted from the bottom of the tube into the position where the thumb support part of the recorder's tube is to be attached, and both sides of the clamping part It is installed by sandwiching the outer peripheral surface of the tube. When the clamping part is fitted to the outer peripheral surface of the tube, since the inner diameter of the clamping part is slightly smaller than the outer diameter of the tube, both sides of the clamping part having a predetermined length are pressed against the outer peripheral surface of the tube by spring force. to properly secure the finger rest in its designated mounting position. The clamping force of the clamping portion having a predetermined length on the tubular body functions to support the weight of the tubular body by the thumb. Furthermore, since the clamping part is formed in a well-arc shape whose arc length is larger than the outer half circumferential surface of the tube body, the clamping part can hold the tube with one end pushed out by the outer circumferential surface of the tube body. Once fitted to the outer circumferential surface of the body, it will not easily fall off in the direction in which it was fitted into the tubular body unless the holding portions are pushed out again. However, when the clamping part is fitted to the outer peripheral surface of the tube,
It is possible to slide the tube while maintaining appropriate hardness while receiving frictional force with the outer circumferential surface of the tube in the front-rear direction along the length direction of the tube. Therefore, even after the clamping part has been attached to the outer circumferential surface of the tube, if you want to change the setting position of the thumb support part that is determined by the gripping part, it is possible to move the mounting position of the clamping part to the desired position even with the help of a child. , the proper position of the thumb support can be easily obtained.

Furthermore, the thumb support is made of a plate with a surface parallel to the cross section of the tubular body clamping part, and this plate has a predetermined width so that it straddles both sides of the clamping part. This helps to accurately suppress the force that tends to expand outward on both sides, and to ensure the tube body clamping force of the clamping part when the thumb support part is supported by the thumb.

〔Example〕

The finger rest of the recorder according to the present invention will be explained with reference to the embodiment shown in the drawings. Fig. 1 is a perspective view of the finger rest attached to the recorder, where 1 shows the tube body of the recorder, and 2 shows the finger rest according to this invention. ing. This finger hook 2 is located at the fourth tone hole B to G provided on the front side of the recorder tube body 1.
It is attached to the back side of the tube in the range where the 6th sound hole E to the 6th sound hole G are located, preferably in the part where the 5th sound hole F is located.

FIG. 2 shows a first embodiment of this finger rest 2,
This finger rest 2 is molded from synthetic resin,
It is composed of a tube holding part 3 having an arcuate cross section so as to sandwich the outer circumferential surface of the recorder tube 1, and a thumb support part 5 projecting below this tube holding part 3.

The tube holding portion 3 includes a bottom surface 3a having a predetermined length Y along the length direction of the tube body 1, and a bottom surface 3a having a predetermined length Y along the length direction of the tube body 1.
and both side surfaces 4 having a predetermined length L extending upward from both sides of a, and these bottom surfaces 3a.
The and both side surfaces 4 are in the shape of arcs facing each other so that the outer circumferential surface of the tube 1 can be tightly sandwiched by a spring force when viewed from the caliber cross section of the tube 1. Further, the inner diameter of the arc-shaped both side surfaces 4 including the bottom surface 3a is slightly smaller than the outer diameter of the tubular body 1 at the position where the finger rest 2 is to be attached. Further, the inner diameter including the bottom surface 3a on the inside of the arc-shaped both side surfaces 4 is such that the upper edge 4 of the both side surfaces 4 is such that the length of the arc is greater than a semicircle.
A has a so-called semi-arc-shaped cross section that extends upward along the arc of the side surface 4.

The tubular body holding part 3 must have a sufficient length for the bottom surface 3a and both side surfaces 4, have an inner diameter slightly smaller than the outer diameter of the tube body 1, and further have a length on both side surfaces 4. Since the edge 4a has a well-arc cross section extending upward, the arc can obtain a strong spring force, and when it is fitted into the outer peripheral surface of the tube body 1, the both side surfaces 4 Due to its own spring force, it comes into close contact with the outer circumferential surface of the tube 1, and firmly clamps and holds the outer circumferential surface of the tube from both sides.

On the other hand, the thumb support part 5 protruding below the gripping part 3 is made of a plate that is oriented perpendicular to the length direction of the gripping part 3, that is, parallel to the cross section of the gripping part 3. The plate has a predetermined width W such that the plate straddles both side surfaces 4 forming an arc of the holding portion 3. The thumb support part 5 may be protruded from any part below the clamping part 3, but in the finger rest 2 shown in FIG. It is located below.

As mentioned above, the fact that the plate forming the thumb support part 5 has a width W such that it spans both sides 4 of the holding part 3 is such that the plate forming the thumb support part 5 has a width W that extends over both sides 4 of the clamping part 3. It helps to suppress. Furthermore, when the thumb is supported by the thumb support part 5 with the holding part 3 fitted into the tube body 1 as described above, the thumb support part 5
receives a force that bends the tube body 1 in the length direction, but when the thumb support portion 5 receives such a force, a force that tightens the tube body 1 from both sides acts on both sides 4. Therefore, a more advantageous state is given to the clamping force of the clamping part 3.

As shown in FIG. 1, when the clamping part 3 is clamped on the outer circumferential surface of the tubular body 1 and the thumb support part 5 is substantially protruded from the lower surface of the tubular body 1, the thumb of the right hand is supported by the thumb support part 5. By placing it on the lower surface of the section 5, the weight of the tubular body 1 can be supported by the thumb via the thumb support section 5.

3 and 4 show both side surfaces 4 of the holding part 3.
An example is shown in which the length is shorter than the length of the bottom surface 3a. When the length of both side surfaces 4 is shortened in this way, both side surfaces 4 can be used for any part of the recorder tube body 1, which has a tapered shape that becomes thinner toward the tip. This helps to properly hold the outer circumferential surface of the finger rest 2 in close contact with the outer circumferential surface of the finger rest 2, and also makes it easy to move the finger rest 2 when the finger rest 2 is moved along the tube body 1 for the purpose of selecting a mounting position.

As mentioned above, the thumb support part 5 may be protruded from any part below the holding part 3, and the thumb support part 5 may be protruded from any part of the finger rest 2 shown in FIGS. 2, 3, 5, and 6.
In this case, the thumb support part 5 is provided below the front edge of the bottom surface 3a of the clamping part 3, but as shown in FIG. Good too. If it is preferable for the thumb to come into direct contact with the tube body 1 depending on the recorder player's preference, the thumb support part 5 can be used to hold the thumb as shown in the finger rest 2 shown in FIGS. 2, 3, 5, and 6. The one provided below the front edge of the bottom surface 3a is used.

Furthermore, as shown in FIG. 5, it is preferable to provide a rib 6 between the back surface of the thumb support part 5 and the bottom surface 3a of the holding part from the viewpoint of reinforcing the thumb support part 5. In addition, if a metal plate spring 7 curved in an arc shape is integrally bonded and fixed to the outer circumferential surface of the clamping part 3 as shown in FIG. This is preferred because it can increase the force.

〔effect〕

As described above, in the finger hook of the recorder according to the present invention, the bottom surface and both side surfaces forming the tube holding part have a predetermined length, and the inner diameter of the tube holding part is the outer diameter of the recorder tube. Since the arc is slightly smaller than the diameter of the recorder tube and is larger than the radius of the outer diameter of the recorder tube, it can be attached to the tube with an extremely stable clamping force when fitted to the tube. In addition to being able to freely move and select the mounting position in this state, the finger rest can be easily handled by children. In addition, in this finger rest, the thumb support part is parallel to the cross section of the tubular body clamping part and is formed from a plate with a width that spans both sides of the grip part, so the thumb can be hung on this thumb support part. As a result, both side surfaces of the clamping portion tighten the tubular body, thereby providing a good finger grip that can further stabilize the clamping force on the tubular body during use.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a recorder equipped with a finger rest according to the present invention. FIG. 2 is a perspective view showing the specific shape of the finger rest of the present invention. 3 to 6 are perspective views showing shapes in other embodiments. 2...Finger hook, 3...Tube body clamping part, 3a...Bottom surface of the clamping part, 4...Both sides of the clamping part, 5...Thumb support part, 6...Rib, 7...Metal plate spring.

Claims (1)

[Claims for Utility Model Registration] (1) A finger rest made of synthetic resin to be fitted into the recorder tube, which has a bottom surface and both sides of a predetermined length along the length of the recorder tube. The tubular body clamping part has an arcuate cross section and a thumb support part that protrudes below the bottom of the clamping part and has a surface parallel to the arcuate cross section of the clamping part. The portion has an inner diameter that is slightly smaller than an outer diameter of the recorder tube such that both side surfaces can tightly clamp the outer circumferential surface of the recorder tube by a spring force. The thumb support part is formed in a superior arc shape, forming circular arcs facing each other and having a length larger than the radius of the outer circumferential surface of the tube body, and the thumb support part is configured to straddle both sides of the tube body holding part. A recorder finger rest characterized by having a predetermined width. (2) The finger rest for a recorder according to claim 1, wherein the length of the bottom surface and both side surfaces of the tubular body clamping part are the same, and the thumb support part is formed at the front edge of the bottom surface of the tubular body clamping part. (3) The recorder finger rest according to claim 1, wherein the length of both side surfaces of the tubular body clamping part is formed shorter than the length of the bottom surface, and the thumb support part is formed at the front edge of the bottom surface of the tubular body clamping part. . (4) The recorder finger rest according to claim 1, wherein the length of both side surfaces of the tubular body clamping part is formed shorter than the length of the bottom surface, and the thumb support part is formed at the center of the bottom surface of the tubular body clamping part. . (5) The finger rest for a recorder according to claim 2, wherein a reinforcing rib along the length of the tubular body clamping part is connected between the back surface of the thumb support part and the bottom surface of the tubular body clamping part. (6) The finger rest for a recorder according to claim 2, wherein a metal reinforcing plate spring is attached to the outer circumferential surface of the bottom of the tube holding portion.