KR19990040317U - Prefabricated drum - Google Patents

Abstract

In the case of manufacturing drum drums used to match the rhythms of folklore-specific spears, etc., the outer surface of individual drum members forming a cylindrical drum can be precisely finished in a predetermined shape, and then both sides of the drum members are formed. It is to be easily fixed by the bonding means and the adhesive formed on the.

According to a preferred embodiment, the outer surface is finished to a predetermined curvature in the longitudinal direction, the drum member is processed at a predetermined angle both sides to form a cylindrical drum barrel in close contact with each other; It is formed so as to be fitted to both sides of the drum member, the adhesive is applied to both sides of the drum member to increase the adhesive strength of the drum member when forming the drum through continuous bonding of the drum member, the drum member It provides a prefabricated drum barrel characterized in that it is provided with a predetermined coupling means to guide the bonding position of the.

Due to this, the coupling means formed on both sides of the drum barrel member after the finishing processing of the individual drum barrel member outer surface forming a cylindrical drum barrel to form a drum drum used to match the short and long period when playing the folk-specific window, etc. Easily fixed by the adhesive can reduce the work process to increase the work efficiency, and the production of the drum can be easily mass production is possible because it has the advantage of significantly lowering the price of the book.

Description

Prefabricated drum

The present invention relates to a prefabricated drum barrel, and more particularly, when manufacturing a drum drum used to match rhythms when playing a folk-specific window or the like, the outer side of each drum drum member forming a cylindrical drum barrel is defined. The present invention relates to a prefabricated drum barrel which can be easily fixed by an adhesive means and an adhesive formed on both sides of the drum barrel member, after finishing the shape precisely.

As shown in FIG. 3, a general drum is made of paulownia wood, etc., and a drum barrel 2 formed in a cylindrical shape by closely contacting individual drum members 1 whose outer surface is processed with a predetermined curvature in the longitudinal and horizontal directions, and a cowhide The upper and lower plates (3, 4) made of a back and tightly attached to the upper and lower ends of the drum (2) is bound by a string not shown.

The above-described drum barrel 2 is made by cutting the solid wood of paulownia tree into a predetermined length so as to match the size of the drum barrel 2 (small drum, large drum, etc.), and then the two drum barrel members 1 on both sides. Both sides are exquisitely processed at a predetermined angle so as to form a cylinder when closely contacting, and after applying a predetermined adhesive on both sides of the drum member 1, the drum member 1 is brought into close contact to form a cylindrical drum 2.

At this time, in order to prevent the occurrence of a gap between the drum member (1) by the close contact of the neighboring drum member (1) is fitted the iron (5, 6) on the upper and lower sides of the drum barrel (2). At this time, each of the drum member (1) described above is to hit each of the drum member (1) with a tool such as a hammer to maintain a uniform height.

Therefore, after curing the adhesive, the above-mentioned iron blades 5 and 6 are separated from the drum barrel 2, and then a predetermined curvature in the longitudinal direction is applied to the outer surface of the aforementioned drum member 1 by using a predetermined processing machine. By precisely processing to have a predetermined drum 2 is completed.

However, in the case of manufacturing the drum 2 as described above, there is a problem that the price of the product is increased as the workability is significantly lowered due to the increase in the number of work is lost, the competitiveness is lost.

Accordingly, an object of the present invention is to produce a drum, which is used to align folk-specific windows, etc., when the drum is used. It is to provide a prefabricated drum barrel to be easily fixed by the coupling means and the adhesive formed in the reduced work process to increase the work efficiency.

Another object of the present invention is to provide a prefabricated drum barrel to facilitate the production of the drum can be mass production is possible to significantly lower the price of the drum to increase the competitiveness.

1 is an exploded perspective view of a drum to which a prefabricated drum according to an embodiment of the present invention is applied;

Figure 2 is a cross-sectional view of the prefabricated drum barrel according to an embodiment of the present invention,

3 is an exploded perspective view of a drum according to the prior art,

Figure 4 is an exploded perspective view of the main portion of the prefabricated drum pain according to another embodiment of the present invention.

* Explanation of symbols used in the main part of the drawing

11: drum member

11A: Protrusion Pin

11B: engagement hole

12: Northern

13: tops

14: bottom plate

21: drum member

21A: protrusion

21B: Groove

The object of the present invention described above is in a drum having a cylindrical drum and a top and bottom plates that are in close contact with upper and lower ends of the drum and are strap-supported by a string: the outer surface is finished with a predetermined curvature in the longitudinal and transverse directions, and the pieces are continuously A drum member which is processed at both sides to have a predetermined angle to form a cylindrical drum in close contact; It is formed so as to be fitted to both sides of the drum member, the adhesive is applied to both sides of the drum member to increase the adhesive strength of the drum member when forming the drum through continuous bonding, and the adhesion position of the drum member It is achieved by providing a prefabricated drum barrel characterized in that it is provided with a predetermined engaging means for guiding.

According to a preferred embodiment, the predetermined coupling means, an arc-shaped protrusion is formed on one side of the drum member, the groove is coupled to the protrusion on the other side of the drum member.

According to a preferred embodiment, the predetermined coupling means, the protrusion pin is formed on one side of the drum member, the coupling hole is coupled to the protrusion pin is formed on the other side of the drum member.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to assist in understanding the technical contents of the present invention, and thus the technical scope of the present invention is not limited.

1 and 2, both sides of the drum member 11 whose outer surface is finished to a predetermined curvature in the longitudinal and transverse directions form a cylindrical drum 12 when the drum members 11 are in close contact with each other. It is processed at a predetermined angle so as to apply an adhesive to both sides of the drum member 11 described above to increase the adhesive strength of the drum member 11 when forming the drum 12 by continuous bonding of the drum member 11. Predetermined coupling means for guiding the bonding position of the member 11 is formed on both sides of the drum member (11). The above-described coupling means has a protrusion pin 11A formed on one side of the drum member 11, and a coupling hole 11B coupled to the protrusion pin 11A on the other side of the drum member 11 is formed.

As shown in FIG. 4, which shows another embodiment of the present invention, the above-described coupling means has an arc-shaped protrusion 21A formed on one side of the drum member 21, and the other side of the drum member 21. In the groove 21B which is coupled to the above-described protrusion 21A is formed.

That is, the above coupling means, formed to correspond to the two sides of the above-described individual drum member 11 is formed to correspond to the drum tube member 11 by bonding both sides of the drum member 12 when forming the cylindrical drum barrel 11 Increasing the adhesive strength of the), and is formed to have a function of guiding the adhesive position of the drum member 11 will belong to the technical scope of the present invention.

Referring to the manufacturing method of the prefabricated drum according to an embodiment of the present invention configured as described above are as follows.

The solid wood of paulownia is cut to a predetermined length to fit the size of the drum 12 (small drum, large drum, etc.), and then the predetermined surface of each drum barrel member 11 has a predetermined curvature in the longitudinal and horizontal directions. Processing by using a processing machine, the both sides of the drum member 11 is machined at a predetermined angle to form a cylindrical drum 12 when the two sides of the drum member 11 is in close contact with each other.

Therefore, by applying a predetermined adhesive to both sides of the drum member 11 described above, by continuously engaging the engaging pin (11A) and the coupling hole (11B) formed so as to be fitted to the drum member 11 side. To form a cylindrical drum 12. Thereafter, the bending degree of the curved surface of the drum member 11 described above may be removed by a finishing operation by sandpaper or the like by the fitting tolerance of the protrusion pin 11A and the coupling hole 11B.

For this reason, when forming the cylindrical drum 12 by closely contacting both sides of the aforementioned drum member 11, the fitting pin 11A and the coupling hole 11B formed on both sides of the drum member 11 described above. By increasing the adhesive strength of the drum member 11 described above, and guides the bonding position of the drum member 11, the production of the drum barrel 12 is simple and mass production is possible.

As described above, according to a preferred embodiment, the drum drum after finishing the individual drum barrel member forming the cylindrical drum barrel to form a drum drum used for aligning the folk window, etc. It can be easily fixed by the bonding means and adhesives formed on both sides of the member to reduce the work process and increase the work efficiency, and the production of the drum can be easy and mass production is possible, so the price of the drum can be drastically lowered to increase the competitiveness. To have one advantage.

Claims (2)

In a drum having a cylindrical drum and the upper and lower plates in close contact with the upper and lower ends of the drum barrel is supported by a strap: A drum member whose outer surface is finished to a predetermined curvature in the longitudinal and transverse direction, and is processed at predetermined angles on both sides so as to form a cylindrical drum barrel in close contact with each other continuously; And It is formed so as to be fitted to both sides of the drum member, the adhesive is applied to both sides of the drum member to increase the adhesive strength of the drum member when forming the drum through continuous bonding of the drum member, the drum member Prefabricated drums, characterized in that provided with a predetermined coupling means for guiding the bonding position. The method of claim 1, wherein the predetermined coupling means; An arc-shaped protrusion is formed on one side of the drum member, the groove is coupled to the other side of the drum member is formed prefabricated drum is formed.