JPS5926385Y2 - Keyboard wind instrument case - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improved keyboard holding structure for a case that houses a keyboard wind instrument.

Cases for keyboard wind instruments such as Pianica (trade name) are conventionally manufactured using a resin molding method, and have a structure in which the main body and the lid are connected via a hinge to open and close freely. A musical instrument is housed, covered with a lid, and carried by hanging via a carrying handle formed on the main body and the lid.

Incidentally, among musical instruments, pianos, organs, etc. are all used in a fixed state, but small musical instruments are often carried around.

In particular, keyboard wind instruments are transported more frequently than other small instruments, and since they are mainly used for music education for infants and elementary school students, we cannot expect them to be handled and stored with much care.
Since musical instruments are easily handled roughly, they are likely to be damaged if they are carried in an unstable position.

Therefore, it is necessary to take some kind of fixing means to prevent the musical instrument from shaking inside the case during transportation.

On the other hand, keyboard wind instruments themselves are very cheap, so
I can't afford to spend too much on the case.

For the reasons mentioned above, conventional cases have a structure in which a protrusion is provided on the inner surface of the lid, and when the case is closed, this protrusion hits the top surface of the non-keyboard part of the instrument and presses the instrument down. .

However, in conventional devices with this type of structure, since the protrusion has a single-plate structure, the contact between the edge and the instrument is close to a line contact, and if a strong impact is applied to the case from the outside,
Because the impact force is borne by this extremely small contact area, the surface of the instrument can be scratched, or in severe cases, it can become dented or the paint can peel off.

In addition, because of the single-plate structure, when the case was opened, the edges of the single-plate protrusions gave a sharp feel, which was not desirable in terms of design.

This design allows the instrument to be held stably in the case while being carried, and provides sufficient protection against external shocks.
Moreover, the object is to provide a storage case for a keyboard wind instrument that has an excellent internal appearance in terms of design.

In order to achieve this objective, this invention has a hollow double-wall structure presser protrusion on the inner surface of the lid for pressing the upper surfaces of the left and right non-keyboard parts of the instrument housed in the main body. .

A more detailed explanation will be given below with reference to the drawings.

Fig. 1 shows the external appearance of the case of this invention, in which the main body 1 and the lid 2 are connected by a hinge 4 (not shown), and the handle half formed on the main body and the lid is in a state in which the case is closed. Together, they constitute a carrying handle 3.

FIG. 2 shows an example of the cross-sectional structure of the case, and in this case, the main body 1 side is formed into a hollow double wall structure to protect the musical instrument M housed therein.

In this case, the lid 2 has a single-plate structure, but there is a hollow double-walled protrusion 2 that protrudes inward, that is, toward the main body.
4 on its inner surface.

The protrusion 24 is sized and shaped so that its free end surface is brought into pressure contact with the non-keyboard upper surface Ma of the musical instrument M when the lid 2 is closed, and serves as a press against the musical instrument M.

The formation position of the protrusion 24 is, for example, as shown in FIG.
This corresponds to the non-keyboard sections on both sides of the keyboard.

In terms of process, the presser projection having a hollow double wall structure as described above is formed by a resin blow molding method as generally disclosed in, for example, Japanese Patent Publications No. 46-14152 and No. 46-14153. It's advantageous.

In this case, the main body, lid, and hinge may be integrally molded, or may be molded separately and then connected to each other.

In any case, according to this invention, in addition to the cushioning properties of the hollow double wall structure, that is, the ability to absorb external shocks, the presser foot protrusion makes relatively large surface contact with the instrument. , can effectively prevent damage to musical instruments.

In addition, the interior appearance has a mellow feel and is not sharp, which is desirable from a design standpoint.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the external appearance of a case according to this invention, FIG. 2 is a cross-sectional view showing an example of the cross-sectional structure in the width direction, and FIG. 3 is a cross-sectional view showing the cross-sectional structure in the longitudinal direction. 1... Body, 2... Lid, 24...
...Musical instrument presser protrusion, 3...Bundle, 4...
...Hinge, M...Musical instrument.

Claims (1)

[Scope of utility model registration request] It consists of a main body, a lid, and a hinge connecting these parts, and has a hollow double-wall structure presser protrusion on the inner surface of the lid for pressing the upper surface of the left and right non-keyboard parts of the instrument housed in the main body. A case for a keyboard wind instrument.