JP3014702U - Speaker grill mounting device for audio equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a speaker grill mounting device for audio equipment, which is excellent in sound permeability, decorativeness, and durability. [Composition] A flexible polyester open-cell polyurethane foam is cut into a polyurethane foam plate of the required thickness, and this polyurethane foam plate is heated and compressed to the required thickness to provide a high-density surface mounting plate main body, which is cut to the required outer edge. Then
Double-sided adhesive tape is placed on the surface of the speaker grill for adhesive bonding.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting device for a speaker grill for audio equipment.

[0002]

[Prior art]

 Conventionally, woven fabrics, knitted fabrics, processed products of metal plates (punching, lath nets, wire nets) and synthetic resin molded products have been mainly used as the mounting members of speaker grills for audio equipment.

Each of the above materials has been used for a long period of time, and there is a strong demand for the development of novel new materials by each product manufacturer.

[0004]

[Problems to be solved by the device]

 Regarding the physical properties required for speaker grills for audio equipment, sound permeability and decorativeness are the most important issues, but conventional high-density fabric products have poor sound permeability in terms of high density. However, since it is a woven fabric, it has a drawback that the outer peripheral portion of the grille is fluffed by the touch and the like. Therefore, the device for mounting the invention is proposed as a solution to these drawbacks.

[0005]

[Means for Solving Problems]

 The flexible polyester open-cell polyurethane foam is cut into a polyurethane foam plate of the required thickness, and the polyurethane foam plate is heat-compressed to the required thickness to provide a high-density surface mounting plate main body, which is cut to the required outer edge, This is a speaker grill mounting device for audio equipment, which is characterized in that it is adhered to the surface of the speaker grill.

A flexible polyester-based open-cell polyurethane foam is cut into a polyurethane foam plate having a required thickness, and the polyurethane foam plate is heat-compressed to a thickness of 1/2 to 1/10 to provide a high-density cover plate main body. , A double-sided adhesive tape with the holes corresponding to this speaker shall be attached, and the main surface of the mounting plate and the double-sided adhesive tape shall be cut into the required outer edges and adhered to the surface of the speaker grill. It is also good as a speaker grill mounting device for audio equipment.

A sound-permeable reinforcement thin plate may be attached to the back surface of the main body of the cover plate.

An intermediate adhesive part may be left on a part of the surface of the double-sided adhesive tape corresponding to the speaker.

The surface mainly composed of the cover plate and the surface of the speaker grill may be the same painted surface.

[0010]

[Action]

 Since the speaker grille mounting device for audio equipment of the present invention is as described above, since the main body of the mounting plate is a porous three-dimensional structure in which the skeleton part of polyurethane foam (three-dimensional mesh structure) is left, it is possible to achieve high density. Even if it is reduced in size, it has excellent sound transmission and exhibits a sound diffusion effect.

Since the general flexible polyurethane foam is a sponge product having a high foaming rate, it has a drawback that the tensile strength and the breaking strength are weak, and therefore it cannot be used for the speaker grill surface mounting for audio equipment. Is significantly improved in strength by heat-compressing the soft polyurethane foam, which is the raw material, to a thickness of 1/2 to 1/10, and its surface hardness and appearance are ideal physical properties for a speaker grill. Is what you get.

Currently, most of the housings of audio equipment produced are synthetic resin products from the viewpoint of productivity, and by using the main surface plate of this invention for the grill, the color tone and the texture of the grill and the housing match. It is easily obtained, has a low cost, and has an extremely elegant appearance.

Particularly, since the conventional high-density woven fabric product is a woven fabric because of its high density and poor sound permeability, it may fluff on the outer peripheral portion. The loudspeaker grille mounting device is strong and can remedy such drawbacks.

[0014]

【Example】

 DESCRIPTION OF THE PREFERRED EMBODIMENTS The speaker grill mounting device 1 for audio equipment according to the present invention will be described below with reference to the drawings, which are examples of a soft polyester urethane foam, which is an open-cell filter type, and the type, grade, and required sound of the audio equipment. Various raw materials such as transparency are used in consideration of various points, and as shown in FIG. 6, a urethane foam plate 2 (shown by a tentative line) cut to a required thickness is about 1/2 to 1/10. A high-density surface-mounting plate main body 3 having a thickness of ⅕ is provided by heat compression processing.

Reference numeral 4 is a double-sided adhesive tape for the main body of the front plate, the front and back sides of which are protected by release papers 5 and 6, and is adhered to the back surface of the main body 3 of the front plate, and is adhered to the speaker grill 7 for audio equipment. . As shown in FIG. 9, the adhesive tape 4 has a surface corresponding to the speaker, for example, cut-outs 8 and 9 for opening which reach the surface of the release paper 6 through the release paper 5 from the front side, When peeling off the release paper 5 on the side, the adhesive part 10 on the inner side of each of the notches 8 and 9 for opening is removed together from the release paper 6, and the adhesive is placed on the release paper 6 on the back side. The agent portion 10 is provided with a high frequency speaker opening 11 and a general speaker opening 12.

As shown in FIG. 12, a double-sided adhesive tape 4 for the main body of the mounting board is adhered to the back surface of the main body 3 of the mounting board, and then, as shown by a phantom line in the same figure, an outer edge cut 13 is made to make a cut on the back surface. The release paper 6 is cut and the cover plate 14 is provided.

The release paper 6 on the back surface of the cover plate 14 is peeled off and adhered to the speaker grill 7 for audio equipment. As shown in FIG. 3, the adhesive portion of the cover plate 14 of the speaker grill 7 for audio equipment is provided in the recessed portion 15 so that the surface of the cover plate 14 and the surface of the speaker grill 7 coincide with each other. There is.

As shown in FIG. 7, a sound-permeable reinforcing thin plate 17 having a large number of openings 16 is heat-welded to the back surface of the cover plate main body 3 formed by heating and compressing. Double-sided adhesive The tape 4 may be adhered.

As shown in FIG. 15, in the double-sided adhesive tape 4 mainly for a mounting board, an opening 12a for a general speaker may be provided in which a portion corresponding to the speaker is left with an intermediate adhesive portion 18 left. is there.

[0020]

[Effect of device]

 The physical properties required for the speaker grill are the elements most required for sound permeability and decorativeness, but the main component of this invention is to remove the film part of polyurethane foam (three-dimensional mesh structure) to create a skeleton structure. Since it is a porous three-dimensional structure with parts left, it has excellent sound permeability and also exhibits a sound diffusion effect.

Since flexible polyurethane foam is a sponge product having a high rate of foaming (density 28 to 70 kg / cubic meter), it has the drawback of weak tensile strength and rupture strength. By heat-compressing a flexible polyurethane foam to a thickness of 1/2 to 1/10, the strength was improved and the surface hardness, appearance, and other physical properties suitable for a speaker grill were obtained.

At present, most of the housings for audio equipment produced are synthetic resin products from the viewpoint of productivity, and by using the main surface plate of this invention for the grill, the color tone and the texture of the grill and the housing can be matched. It is easily obtained, has a low cost, and has an extremely elegant appearance.

In particular, since the conventional high-density woven fabric product is poor in sound permeability due to its high density and may be fluffed on the outer periphery of the grill, it is not suitable for the audio equipment of the present invention. Since the speaker grill mounting device is constructed as described above, it has strength and can remedy such a drawback.

Therefore, it is possible to provide a speaker grille mounting device for audio equipment, which is excellent in sound transparency, decorativeness, and durability.

[Brief description of drawings]

FIG. 1 is a partial front view of a large-sized television housing equipped with a speaker grill mounting device for audio equipment of the present invention.

FIG. 2 is a rear view of the same.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view of the entire outer appearance of a large-sized television casing.

FIG. 5 is a side end view showing a step in a manufacturing method of manufacturing the main body of the mounting plate, which is the main material of the speaker grill mounting device for an audio device according to the present invention.

FIG. 6 is a plan view showing the manufactured main body of the mounting plate.

FIG. 7 is a plan view of a sound-permeable reinforcing thin plate alone, which is also attached to the main body of the cover plate.

FIG. 8 is a side end view showing a state in which the sound transmission reinforcing plate is also attached to the main body of the cover plate.

FIG. 9 is a plan view showing a state in which a double-sided adhesive tape for adhering a main body of a mounting board is provided with a notch for removing a portion corresponding to a speaker as necessary.

FIG. 10 is a sectional view taken along line BB of FIG.

FIG. 11 is a plan view showing a state in which the release paper on the side to be bonded to the main body of the cover plate is also peeled off and the double-sided adhesive tape is provided with holes for general speakers.

FIG. 12 is a plan view showing a state in which a double-sided adhesive tape having speaker openings is provided mainly on a surface mounting plate and a notch for cutting to a required outer shape edge is formed in accordance with a television set casing.

FIG. 13 is a sectional view taken along line C-C of FIG.

FIG. 14 is a rear view showing a state in which a surplus outside the outer edge cutout has been removed and the backside transfer paper of the finished mounting plate has been partially peeled off.

FIG. 15 is a rear view showing another example of the adhesive distribution state of the general speaker openings corresponding to the speakers on the mounting board.

[Explanation of symbols]

 1 Speaker grille mounting device for audio equipment 2 Urethane foam board 3 Main surface mounting board 4 Double-sided adhesive tape for main surface mounting board 5 Release paper 6 Release paper 7 Speaker grille for audio equipment 8 Opening notch 9 Opening notch 10 Adhesion Agent portion 11 High-frequency speaker opening 12 General speaker opening 12a General speaker opening 13 Outer edge notch 14 Outer plate 15 Recessed portion 16 Opening hole 17 Sound transmission reinforcement thin plate 18 Intermediate adhesive portion

Claims (5)

[Scope of utility model registration request] 1. A flexible polyester-based open-cell polyurethane foam is cut into a polyurethane foam plate having a required thickness, and the polyurethane foam plate is heated and compressed to a required thickness to provide a high-density surface mounting plate main body, which has a required outer edge. A speaker grill mounting device for audio equipment, characterized by being cut into pieces, and having a double-sided adhesive tape interposed on the surface of the speaker grill for adhesive mounting. 2. A flexible polyester-based open-cell polyurethane foam is cut into a polyurethane foam plate having a required thickness, and this polyurethane foam plate is heat-compressed to a thickness of 1/2 to 1/10 to provide a high-density cover plate main body. , A double-sided adhesive tape with the required holes on the surface corresponding to this speaker should be attached, and the main surface of the mounting plate and the double-sided adhesive tape should be cut into the required outer edges and then adhered to the surface of the speaker grill. A speaker grill mounting device for audio equipment. 3. The speaker grill cover mounting device for an audio equipment according to claim 1, wherein a sound-permeable reinforcing thin plate is attached to the back surface of the cover plate main body. 4. The speaker grill for audio equipment according to claim 1, wherein an intermediate adhesive portion is left on a part of a surface of the double-sided adhesive tape corresponding to the speaker. Cover equipment. 5. The sound according to claim 1, claim 2, claim 3 or claim 4, wherein the surface of the main body plate and the surface of the speaker grill have the same painted surface. Speaker grill mounting equipment for equipment.