JP2003116189A - Speaker cabinet and method for manufacturing speaker cabinet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a speaker cabinet having high quality external appearance with no connection surface appearing in any surface and also provided with high strength, and a method for manufacturing the speaker cabinet. SOLUTION: In this speaker cabinet 1, an edge face at 45 deg. with respect to each plate surface is formed at four sides of a front plate 10, a rear plate 20, a left side plate 30, a right side plate 40 a top plate 50 and a bottom plate 60 made of wood, and the speaker cabinet 1 is assembled by connecting opposed edge faces with each other. Also, in connection faces where the respective edge faces are connected, a tenon groove 2 (2a to 2c) and a tenon rail part 3 (3a to 3c) formed respectively on the respective opposed edge faces are interfitted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker cabinet having a high quality appearance and high strength, and a method for manufacturing the speaker cabinet.

[0002]

2. Description of the Related Art Conventionally, in the production of a speaker cabinet, a method of combining a plurality of plate materials by combining them in a zigzag manner has been widely used because of its ease of assembly.

However, most of the methods of combining a plurality of plate materials by combining them with each other are,
As a result of joining the end portion of the plate surface of the plate material orthogonal to this plate material, the end surface of the plate material and the plate surface of the other plate material are flush with each other to form one plane of the speaker cabinet. .

For this reason, since the end face which is the wood mouth appears on the surface and the joint portion between the end face and the plate surface, that is, the joint surface appears as a groove on the plane of the speaker cabinet, the wood grain is present at that portion. There is a problem in that the quality of the speaker cabinet is deteriorated in appearance due to the interruption. Especially, the front of the speaker cabinet is most noticeable,
Since it can be said to be a main part of the appearance of the speaker cabinet, it was important to prevent the groove and the like from appearing at least on the front surface of the speaker cabinet.

Therefore, in the conventional speaker cabinet, the end face of the front plate located in front is formed at an angle of about 45 degrees with respect to the plate face of the front plate, and the ceiling plate joined to the front plate is formed. Similarly, for the plate, the bottom plate, the right side plate, and the left side plate, there is one that adopts a three-way fastening structure in which end faces having an angle of about 45 degrees with respect to the plate face are formed and the end faces are opposed to each other and joined. .

FIG. 1 shows a cross section of a speaker cabinet 100 having such a structure as an example of a conventional speaker cabinet. Here, the left side in the figure is the front side, and the right side is the back side. As shown in the drawing, a joint surface P is formed at a joint portion between the end surface of the front plate 110 of the speaker cabinet 100 and the end faces of the top plate 150 and the bottom plate 160 at 45 degrees with respect to the plate surface of the front plate 110. It will be.

On the back side of the speaker cabinet 100, there are tenon portions (121a, 121b, etc.) formed on the end faces located on four sides of the back plate 120, the top plate 150, and the bottom plate 1.
60 and the groove (15) formed on the left and right side plates (not shown).
1, 161 etc.), the back plate 120 is joined.

According to this structure, since the joint surface P of the front plate 110 appears on the side of the speaker cabinet 100 in appearance, that is, it does not appear on the plate surface of the front plate 110, the front surface side It was possible to improve the appearance of the speaker cabinet 100 from the front plate 110 side.

[0009]

However, for example, in the conventional speaker cabinet 100 shown in FIG. 1, the appearance from the front plate 110 side is improved, while the back plate 120 side has a wooden mouth. Thus, the end surface R which is a surface appears on the surface, and the joint surface Q appears as a groove on the plate surface of the back plate 120, so that the front plate 110 side and the back plate 120 side do not have the same finished state.

Therefore, when observed from various angles, the sense of unity is lacking in design, and it cannot be said that the speaker cabinet 100 as a whole has sufficient appearance. Therefore, in order to improve the appearance of the speaker cabinet 100, the front plate 1
It was important to provide the speaker cabinet 100 with a sense of unity in design, for example, by making the finished state of the 10 side and the back plate 120 side the same.

Regarding the joining of the back plate 120, since the top plate 150, the bottom plate 160, and both side plates are not provided with a so-called three-way fastening structure similar to the front plate 110, the back surface of the speaker cabinet 100 is not used. It could not be said that the side had sufficient strength.

An object of the present invention is to provide a speaker cabinet and a speaker cabinet manufacturing method which have a high-quality appearance in which a joint surface does not appear on any of the surfaces and have high strength.

[0013]

The present invention has the following configuration.

(1) A rectangular parallelepiped speaker cabinet constructed by joining six rectangular plate members, in which the four end surfaces of each plate member including the back plate member are attached to the plate surface of each member. While forming at an angle of about 45 degrees, each plate material,
It is characterized in that the end faces are opposed to each other and joined.

In this structure, the end faces formed at an angle of about 45 degrees with respect to the plate surfaces of the four sides of each plate member including the plate member for the back face are joined to each other, and the end faces are joined to each other. Since the joined surface does not appear on the plate surface of any plate material, all flat surfaces including the back side will have the same finished appearance, thus unifying the speaker cabinet design and overall appearance. The property is improved.

(2) Of the facing end faces, one end face is provided with a mortise groove portion, and the other end face is provided with a mortar rail portion to be fitted into the mortise groove portion.

In this structure, when the end faces of the plate members are joined to each other so that the end faces of the plate members are joined to each other, the groove portion on one end face of the joint face and the groove portion on the other end face are fitted to each other. The positioning of the speaker cabinet is facilitated, and the area of the joint portion is increased to increase the joint strength of each joint portion, thereby improving the strength of the entire speaker cabinet.

(3) Of the plate materials, the above-mentioned groove grooves are formed on the end faces of the four sides of the top plate and the bottom plate, the above-mentioned groove portions are formed on the four sides of the front plate and the back plate, and the left side plate and the right side plate are formed. It is characterized in that the hoso rail portion is formed on the upper and lower sides, and the hoso groove portions are formed on the left and right sides of the left side plate and the right side plate.

In this structure, the groove portions are formed on four sides of the top plate and the bottom plate, and are formed on the top plate and the bottom plate among the sides of the front plate, the back plate, the left side plate and the right side plate. Since the hoso rail portion is formed at a position to be fitted with the hoso groove portion, the bottom plate is installed, and the hoso rail formed on each of the front plate, the back plate, the left side plate, and the right side plate from above. By fitting the portion into the groove portion, provisional fastening at the time of assembling the plate material is facilitated, convenience of assembly is achieved, and sophistication of positional accuracy is achieved.

(4) The top plate and the bottom plate, the front plate and the back plate, and the right side plate and the left side plate are made of common members, respectively.

In this structure, since the common members are used for the top plate and the bottom plate, the front plate and the back plate, and the right side plate and the left side plate, six faces of a rectangular parallelepiped are used. Compared with the case where different members are used for the plate members constituting the above, the types of required members are reduced, and the cost of the manufactured speaker cabinet is reduced.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION A speaker cabinet and a method for manufacturing the speaker cabinet of the present invention will be described below with reference to the drawings.

2 and 3 are views showing the configuration of the speaker cabinet 1 of the present invention.

As shown in FIG. 1, the speaker cabinet 1 of the present invention comprises a wooden front plate 10, a back plate 20, and a left side plate 3.
0, the right side plate 40, the top plate 50, and the bottom plate 60. Since FIG. 2 is a perspective view of 45 degrees,
In the figure, the end faces of the front plate 10 and the back plate 20 (as will be described later, the end faces are formed at 45 degrees with respect to the plate face) and the hoso rail portion 3 (3 formed on the end faces.
Although there is a portion in which the contours of the shapes a, 3b) are not shown, the portion actually has the shape shown in FIGS. 3 and 4.

The front plate 10 is formed with unit holes 11 (11a, 11b) for mounting speaker units (not shown) and baffle holes 12, respectively. Further, the back plate 20 facing the front plate 10 is formed with a unit hole 21 into which a power unit (not shown) including a line input terminal, a power supply unit and the like is mounted.

Here, the unit holes 11 (11a, 11
b), since the front plate 10 and the back plate 20 before forming the baffle hole 12 and the unit hole 21 have the same shape, the plate material to be used for the front plate 10 can be used as the back plate 20. Therefore, it is not necessary to prepare different kinds of plate materials for the front plate 10 and the back plate 20, respectively. Similarly, the left side plate 30 and the right side plate 40
The same plate material is used for, and the same plate material is used for the top plate 50 and the bottom plate 60, so that the types of plate materials required are reduced and the cost of the speaker cabinet 1 is reduced. ing.

Further, the front plate 10, the back plate 20, the left side plate 30,
As shown in FIG. 3, each of the four sides of the right side plate 40, the top plate 50, and the bottom plate 60 has an end face formed at 45 degrees with respect to each plate face. Note that, for convenience, the side and the end face of each plate material are used synonymously. Further, as will be described later, since the joint surface P is constituted by the end faces, the reference numeral P is given to the position of each end face in the figure. Further, in the figure, the unit holes 11 (11a, 11
b), the baffle hole 12, and the unit hole 21 are omitted.

As shown in the figure, the front plate 10, the back plate 20,
On each side of the left side plate 30, the right side plate 40, the top plate 50, and the bottom plate 60, the mortise groove portions 2 (2a to 2c) or the mortar rail portions 3 (3a to 3c) are formed.

The front plate 10 and the back plate 20 are provided with the hoso rail portions 3 (3a, 3b) on all four sides.

The left side plate 30 and the right side plate 40 are provided with the hoso rail portions 3c on the upper and lower sides in the drawing, and on the left and right sides, the hoso groove portions 2 are formed.
b is formed.

The top plate 50 and the bottom plate 60 are provided with the groove portions 2 (2a, 2c) on all four sides.

At this time, the hoso groove portion 2 and the hoso rail portion 3 are shaped to fit with each other, and the alphabets such as 2a and 3a of the respective groove portions 2 and 3 are attached. The equal groove portion 2 and the horizontal groove portion 3 are fitted together.

FIG. 4A is a sectional view of the speaker cabinet 1. In addition, FIG. 4B shows the groove 2 (2a).
~ 2c) and the hoso rail part 3 (3a to 3c) are shown in an enlarged manner to show an example of their shapes.

For example, in FIG. 4B, an adhesive is applied to the joint surface P, and the end surface of the top plate 50 and the end surface of the back plate 20 are joined by the adhesive. Similarly, adhesives are used for the other joints.

In this manner, the end faces of the front plate 10, the back plate 20, the left side plate 30, the right side plate 40, the top plate 50, and the bottom plate 60 located on four sides are respectively joined by an adhesive agent or the like to thereby make a speaker cabinet. 1 is assembled.

At the time of assembling the speaker cabinet 1, for example, the bottom plate 60 is installed, and the hoso rail portions 3a of the back plate 20 and the hoso rail portion 3c of the left side plate 30 are fitted into the hoso groove portions 2a and 2c of the bottom plate 60, respectively. Then, the bottom plate 60, the back plate 20, and the left side plate 30 are kept structurally stable. This is provided with the tenon groove portions 2a and 2c on the four sides of the bottom plate 60, and corresponding to the other plate materials, the tenon groove portions 2 (2a to 2) respectively.
c) and the hoso rail part 3 (3a to 3c), the hoso groove part 2 (2a to 2c) and the hoso rail part 3 (3).
This is because the combination of a to 3c) is adopted. That is, gravity acts on the hoso rail part 3 a of the back plate 20 and the hoso rail part 3 c of the left side plate 30, but the lower side of the hoso rail part 3 a of the back plate 20 and the hoso rail part 3 c of the left side plate 30 is below the hoso groove part of the bottom plate 60. Gravity is maintained by the bottom plate 60, the back plate 20, and the left side plate 30 because they are held by 2a and 2c.
It does not act to destabilize the structure of, and the structure remains stable unless an external force acts.

As a result, the speaker cabinet 1 is
Temporary fastening and the like become easy, and the assembling work can be performed easily.

As shown in FIG. 4 (a), the front plate 10
In both the plate surface of the back plate 20 and the plate surface of the back plate 20, the joint surface P, which is a mouthpiece, does not appear on the surface in appearance, so that the front plate 10 and the back plate 20 can be in the same finished state. In addition, the left side plate 30, the right side plate 40, the top plate 50, and the bottom plate 60 can be similarly finished. Therefore, the speaker cabinet 1 has a unified design as a whole, and the appearance of the speaker cabinet 1 is improved.

FIG. 5 shows a state in which the grill net 4 of the speaker cabinet 1 is mounted, and FIG. 6 shows a state in which the grill net 4 of the speaker cabinet 1 is removed. FIG. 7 is a perspective view showing the outer appearance of the speaker cabinet 1 from the rear left side.

In the present embodiment, since all the plate members are joined by the so-called three-way fastening, when the speaker cabinet 1 is used with the grill net mounted, it is naturally used with the grill net removed. Even in such a case, the wood mouth, which is the joint surface of each plate material, is not noticeable in appearance. Furthermore, as shown in FIG.
Even when viewed from the 0 side, that is, from the back side, the wood entrance does not appear on each plate surface of the speaker cabinet 1 in appearance, and it can be said that the appearance is improved. In addition, all joint surfaces are so-called three-way fastening, and the groove portions 2 (2a to 2c) are formed on each joint surface.
Also, the speaker cabinet 1 is improved in strength and airtightness because it is fitted with the hoso rail part 3 (3a to 3c).

This is because the back plate 20 is required to have high accuracy in the assembly process in order to maintain the appearance quality.
As a result, this is due to the improved adhesion of the clasp joints as compared to conventional back plates such as the back plate 120 in FIG.

FIG. 8 is a diagram showing frequency characteristics of a speaker system to which the speaker cabinet 1 is applied. As shown in the figure, the speaker system exhibits flat frequency characteristics over a relatively wide range of frequencies.

FIG. 9 is a perspective view of 45 degrees similarly to FIG. 2, and shows an example of a method of manufacturing the speaker cabinet 1. In this manufacturing method, the left side plate 30 and the right side plate 4 are
0, the top plate 50, and the bottom plate 60 are used as an integrated plate material, and V-shaped notches 5 (5a to 5c) are formed at the boundaries of the left side plate 30, the right side plate 40, the top plate 50, and the bottom plate 60. Has been done. Regarding the joining of the plate materials, the front plate 10 and
By assembling the back plate 20 and the plate material in which the left side plate 30, the right side plate 40, the top plate 50, and the bottom plate 60 are integrated, the respective plate materials can be easily joined.

[0044]

As described above, according to the present invention, the following effects can be obtained.

(1) The end faces formed at an angle of approximately 45 degrees with respect to the plate surfaces of the four sides of each plate member including the plate member for the back face are joined to each other, and the end faces are joined to each other. Since the joint surface does not appear on the plate surface of any plate material,
All flat surfaces including the back side can be made to have the same finished appearance, the design of the speaker cabinet can be unified, and the overall appearance can be improved.

(2) When the plate members are joined with their end faces facing each other, the groove portion of one end face of the joint face and the hosel rail portion of the other end face are fitted to each other. In addition, the area of the joint portion can be increased, the joint strength of each joint portion can be increased, and the strength of the entire speaker cabinet can be improved.

(3) The above-mentioned groove portions are formed on four sides of the top plate and the bottom plate, and among the sides of each plate material of the front plate, the back plate, the left side plate, and the right side plate, the top plate and the bottom plate are formed. Since the hoso rail portion is formed at a position to be fitted with the hoso groove portion, the bottom plate is installed, and the hoso rail portions formed on the front plate, the back plate, the left side plate, and the right side plate are arranged from above the bottom plate. By fitting in the groove portion, temporary fixing at the time of assembling the plate material can be easily performed, convenience of assembly can be achieved, and sophistication of positional accuracy can be achieved.

(4) Since the common members are used for the top plate and the bottom plate, the front plate and the back plate, and the right side plate and the left side plate, six sides of a rectangular parallelepiped are formed. As compared with the case where different members are used for the respective plate members, the types of required members can be reduced, and the cost of the manufactured speaker cabinet can be reduced.

Therefore, it is possible to provide a speaker cabinet and a speaker cabinet manufacturing method which have a high-quality appearance in which a joint surface does not appear on any of the surfaces and which has high strength.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a configuration of a conventional speaker cabinet.

FIG. 2 is a diagram showing a configuration of a speaker cabinet of the present invention.

FIG. 3 is a diagram showing a configuration of each plate member of the speaker cabinet of the present invention.

FIG. 4 is a cross-sectional view of the speaker cabinet of the present invention.

FIG. 5 is a diagram showing a state in which a grill net of a speaker cabinet is attached.

FIG. 6 is a view showing a state in which a grill net of the speaker cabinet is removed.

FIG. 7 is a perspective view showing the appearance of the speaker cabinet from the left rear side.

FIG. 8 is a diagram showing frequency characteristics of a speaker system to which a speaker cabinet is applied.

FIG. 9 is a diagram showing an example of a method for manufacturing the speaker cabinet 1.

[Explanation of symbols]

1-speaker cabinet 2 (2a to 2c) -Hoso groove part 3 (3a-3c) -Hosolail part 10-top plate 11 (11a to 11b) -Unit hole 12-baffle hole 20-backboard 21-Unit hole 30-left side plate 40-right side plate 50-top plate 60-bottom plate

Claims (4)

[Claims] 1. A rectangular parallelepiped speaker cabinet configured by joining six rectangular plate members, wherein four end faces of each plate member including a plate member for a back surface are substantially formed with respect to the plate surface of each member. A speaker cabinet characterized in that it is formed at an angle of 45 degrees and the respective plate members are joined with their end faces facing each other. 2. The loudspeaker according to claim 1, wherein one of the facing end surfaces has a groove portion formed on one end surface, and the other end surface has a groove portion which fits into the groove portion. cabinet. 3. The top plate and the bottom plate of the plate member are formed with the groove grooves on the four end faces thereof, and the front plate and the back plate are formed with the groove grooves on the four sides, and the left and right plates are vertically arranged. The speaker cabinet according to claim 2, wherein the hoso rail portion is formed on a side, and the hoso groove portions are formed on left and right sides of the left side plate and the right side plate. 4. A method of manufacturing a speaker cabinet, wherein common members are used for the top plate and the bottom plate, the front plate and the back plate, and the right side plate and the left side plate.