JPH0656547B2 - Ceramics musical instrument manufacturing method - Google Patents

Description

The present invention relates to a method of manufacturing a musical instrument using ceramics.

(Prior Art) Conventionally, a ceramic musical instrument is known by, for example, Ocarina.

(Problems to be Solved by the Invention) However, ceramic musical instruments are limited to small ones due to their difficulty in manufacturing, and it is extremely rare to produce a large musical instrument or a complicated musical instrument. there were. In particular, delicate musical instruments such as stringed instruments are required to have an accurate shape and a homogeneous material, so that it is almost impossible to manufacture ceramics as a raw material. The present invention is to solve this manufacturing problem.

(Means for Solving the Problems) In order to achieve the above-mentioned problems, in the present invention, a plurality of unfired ceramic thin plates are respectively formed into predetermined shapes, and the ceramic thin plates are further laminated in a predetermined order. In the method for manufacturing a ceramic musical instrument, in which the laminate is fired after forming the laminate, at least one of the ceramic thin plates is a thin plate before lamination,
While forming a hole that becomes hollow inside the stack during stacking,
Similarly, it is a gist to form a vent for communicating the hole with the outside of the laminate at the time of stacking.

(Operation) According to the present invention, the weight of the whole laminated body is reduced as the weight of the ceramic thin plate having the holes is reduced. Further, the air in the pores expanded by the heating during firing is discharged to the outside of the laminated body through the ventilation holes.

(Example) The manufacture of thin ceramic plates has been rapidly developed in recent years.
Ceramic powder, for example, alumina powder, is mixed with an organic binder such as polyvinyl butyral and an appropriate plasticizer, an alumina sheet is formed by the doctor blade method, punched into a desired size and shape, and the alumina ceramic thin plate portion is manufactured by high temperature firing. This technique is widely used for manufacturing IC substrates. In addition, the rolling method,
At present, it is easy to compare ceramic thin plates, such as papermaking and spraying on paper, even for large areas. In particular, the paper-shaped molded product before firing is not only cut into various shapes and various punching processes can be easily performed, but also the firing shrinkage is kept constant due to the two-dimensional homogeneity, and the shape and dimension are precise. Work is possible.

Therefore, an embodiment in which the present invention is embodied in a method of manufacturing a body of a solid electric guitar using the ceramic thin plate 1 manufactured by the above-described various methods will be described.

In order to manufacture the body of the solid electric guitar, first, the ceramic thin plate 1 is molded into a shape corresponding to each part of the body. The shape at this time is
Decide in consideration of shrinkage during firing. Fig. 1 A, B,
Symbols C and C show a part of the ceramic thin plates 1a, 1b and 1c molded in this way. In this case, the ceramic thin plate 1 that does not appear on the body surface is provided with holes 3 at appropriate positions on the surface of the thin plate 1 as shown in FIG. 1D for the purpose of weight reduction.

Next, as shown in FIG. 2, the ceramic thin plates 1 formed into these are laminated to form a laminated body 2 of the electric guitar body. Here, final molding is performed on the side edges and minute portions of the laminate 2. In the figure, A, B, C
Indicates the thin plates 1a, 1b, and 1c of FIGS. 1A, 1B, and 1C, respectively.

Then, if the laminated body 2 is fired in a firing furnace, it is joined and integrated (not shown). At the site sealed in the laminated body 2, the enclosed air may expand or contract due to temperature change during firing or cooling to deform the body shape. Therefore, when the holes 3 are formed in the ceramic thin plate 1, the thin grooves 4 leading from the holes 3 to the side edges are formed on the ceramic thin plate 1. The narrow groove 4 serves as a vent hole 5 that opens to the side edge of the laminated body 2 and can prevent deformation and expansion during firing.

FIG. 4 shows an example in which the present invention is applied to manufacture of an electric guitar having a neck structure. In this embodiment, the neck portion 6 of the solid electric guitar is extended to the body portion 7 to form a laminated body 2a in which the ceramic thin plates 1 are laterally laminated in FIG. Also in this embodiment, it can be manufactured by the method described above,
The same effect can be obtained.

The method of the present invention is not limited to the electric guitar described above, but can be applied to mandolin and other wide range of musical instruments.

(Effects of the Invention) According to the present invention, not only can the weight of the laminate be reduced, but also when the laminate is fired, the air that expands in the holes can escape from the vent to the outside of the laminate. Due to the air expansion action, it is possible to reliably prevent the laminated body from being deformed.

[Brief description of drawings]

FIG. 1 is a plan view of an unfired ceramics thin plate, FIG. 2 is a sectional view of a laminated body, FIG. 3 is a partially enlarged view of FIG. 2, and FIG. 4 is a side view of another embodiment. 1 ... Ceramic thin plate, 2 ... Laminated body, 3 ... Hole,
5 ... Vent

 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-56-37151 (JP, A) JP-A-55-79597 (JP, A) JP-A-56-111615 (JP, A) JP-A-55- 74593 (JP, A) JP 55-74594 (JP, A) JP 56-155060 (JP, A) JP 55-15147 (JP, A)

Claims (1)

[Claims] 1. A laminate (2) is formed by forming a plurality of unfired ceramics thin plates (1) each into a predetermined shape, and further laminating the ceramics thin plates (1) in a predetermined order. Then, in the method for manufacturing a ceramic musical instrument, wherein the laminate (2) is fired, at least one of the ceramic thin plates (1) is a thin plate before lamination, and is hollow in the laminate (2) during lamination. While forming a hole (3) to be the same, a ventilation hole (5) which connects the hole (3) and the outside of the laminate (2) at the time of stacking is also formed. Manufacturing method of musical instrument.