JPH077780A - Speaker system - Google Patents

Abstract

PURPOSE:To provide a speaker system provided with an appropriately exchangeable grill by a simple structure. CONSTITUTION:The grill 1 for which pressing work is executed to the prescribed width of a peripheral edge part and a frame part 3 is formed and a groove 7 to be engaged with the frame part are provided around the front surface part of a speaker cabinet and the frame part 3 of the grill 1 is fitted to the groove. An aromatic material 5 can be provided in the grill. Since the need of sticking two parts with each other as before is eliminated, manufacturing processes can be simplified, also since a grill base using a metallic die is not used, cost can be suppressed at low and the grill with a different color or the like can be freely exchanged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker system for audio and the like, and more particularly to an improvement of a speaker grill on the front surface of a speaker.

[0002]

2. Description of the Related Art Generally, in a speaker system, a speaker grill (hereinafter referred to as a grill) is used for the purpose of protecting and decorating a speaker diaphragm.

Conventionally, as a structure of a grill, there is known a structure in which a cloth such as a saran net is attached to a resin-molded grill base. FIG. 11 shows a conventional example of a speaker system with a grill based on a resin grill base. As shown in the figure, the conventional grill 15 includes a cloth material 13 called a jersey on a grill base 12 made of resin.
Is pasted. A protrusion 14 is provided on the grill base 12. As shown in FIG. 12, the grill 1
5 is fixed by inserting the protrusion 14 into the fixing hole 16 provided in the peripheral portion of the speaker cabinet 8.

Further, as another example of the conventional grill, instead of the cloth material 13, urethane foam is molded into a block shape,
It is known that this urethane block is fixed to a grill base.

[0005]

However, in the former example (FIG. 11) using the former resin grill base, a die is required to mold the grill base, resulting in high cost. Further, since the structure of the grill is composed of two parts, the grill base and the cloth material to be attached, there is a problem that the work of adhering the cloth material to the grill base is required, which is troublesome.

In the latter conventional example, in addition to the problem of high cost for the grill base, there was the problem that the quality of urethane deteriorated with the passage of time and became unusable. An object of the present invention is to provide a speaker system having a grill which has a simple structure and can be appropriately replaced.

[0007]

In a speaker system according to the present invention, a grill having an elastic portion formed by crimping is formed in a predetermined width at a peripheral end portion, and a groove with which the elastic portion is engaged is provided around a front surface portion. And a cabinet.

[0008]

According to the present invention, since the peripheral portion of the speaker grill is provided with the elastic portion subjected to the crimping process, the speaker grill itself has strength and it is necessary to reinforce using the grill base. There is no. Further, since the speaker grill itself has strength, the speaker grill can be attached only by engaging this elastic portion with the groove provided around the front portion of the cabinet.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of the present invention will be described with reference to the drawings. (I) First Example A first example of the present invention is shown in FIGS.

In the first embodiment, the present invention is applied to a round speaker system which is often found in vehicles.
FIG. 1 shows the overall shape of the grill in the first embodiment. Figure 1
(A) shows the grill 1 seen from the front. For the constituent material of the grill, for example, nylon-based or polyester-based fibers having thermoplasticity are used.

FIG. 1B shows a cross section of the grill 1. Surface yarn 2 made of polyester or the like is intermediate yarn 4 made of nylon or the like
The structure is woven by double Russell knitting. According to the size of the speaker, this structure is provided with, for example, a frame 3 which is cut into a circular shape in the first embodiment and is subjected to thermocompression bonding at the peripheral end. The frame portion 3 may be provided around the grill 1 so as to have flexibility by being hardened to a certain degree of hardness with an adhesive or the like, without being subjected to thermocompression bonding. In this case, the material of the grill may be one that does not have thermoplasticity.

The frame 3 should have a working width that is sufficient to fit it into a groove 7 provided in a cabinet 8 described later. In the above grill structure, FIG.
As shown in (b), it is also possible to permeate the intermediate yarn 4 with an aromatic agent or to attach aromatic particles 5 to give an aromatic effect as a speaker system.

In the case of double raschel knitting, the grille alone can be self-supporting by making the intermediate thread 4 a rigid material. Further, by providing the frame portion 3, the grill 1 as a whole has a higher strength than before processing, and the grill 1 can be sufficiently self-supported without using a reinforcing member such as a conventional grill base.

FIG. 2 is a cross-sectional view showing how the grill according to the first embodiment is attached to a round speaker cabinet.
In the speaker cabinet 8 to which the speaker 6 is attached, a groove 7 is provided all around the periphery of the front surface of the speaker. By utilizing the flexibility of the grill 1 and the frame portion 3 and fitting the frame portion 3 into the groove 7, the grill 1 is attached to the speaker system.

FIG. 3 shows how to attach the grill 1.
As shown in the figure, the entire grill 1 is bent and pressed toward the speaker in the figure, and the frame 3 is fitted into the groove 7. Grill 1
Since the frame portion 3 provided on the outer peripheral portion has flexibility to be freely bent, it is suitable for a method of attaching such a portion while distorting it.

FIG. 4 shows a method of removing the grill 1.
Once the entire grill 1 is pushed in the direction of the speaker 6, the entire grill is curved and the frame 3 is disengaged from the groove 7. Removal is completed by pulling the entire removed grill 1 in the direction of the arrow in the figure. Since the entire material of the grill 1 is flexible, the central portion of the grill can be picked.

Generally, a speaker system for vehicle mounting is
There are many round speaker systems as in this embodiment. The speaker cannot be used without a grill because it is used in an environment with much dust in the air. Therefore, the importance of vibrating surface protection is increased for the grill, but at the same time, the grill is heavily soiled, and the conventional grill requires frequent cleaning.

However, since the grill of this embodiment can be manufactured from a uniform material, the shape of the grill can be freely selected by the cutting method and can be easily manufactured only by a mechanical process. Is. Therefore, a grill that can be easily attached and detached can be provided at low cost, and if the grill becomes dirty, it can be replaced immediately.

FIG. 7 shows an example in which the shape of the groove in the first embodiment is modified. In this modification, depending on the size and shape of the speaker system, it is easier to attach / detach a groove provided at a necessary and sufficient number of places than the groove provided on the entire circumference of the cabinet as in the first embodiment.

FIG. 7A shows an example of a cabinet in which grooves 7 are provided at four locations around the cabinet 8 for fixing the speaker 6. As shown in the figure, the grill 1 is pressed in the direction of the arrow in the figure, and the frame 3 is fitted and fixed in the four grooves 7. In this modified example, the frame portions 3 can be fitted into the corresponding grooves 7 in order, so that the mounting work is easy and the attachment / detachment is easier than when the grooves are provided on the entire circumference.

FIG. 7B shows an example in which the shape of the groove of the first embodiment is similarly modified and the groove 7 is provided at two symmetrical positions. In this modified example, the grill can be attached / detached more easily than the example of (a), and the fixing is completed only by inserting the frame portions 3 into the grooves 7 at the two upper and lower locations. (II) Second Embodiment FIGS. 5 and 6 show a second embodiment of the present invention. The second embodiment is an application of the present invention to a box type speaker system.

FIG. 5 shows a front view of the grill 1 in the second embodiment. Match the box-shaped cabinet 6 and grill 1
Is shaped into a rectangle. As in the first embodiment, the internal structure is knitted by double Russell knitting or the like with polyester or other surface yarn being nylon or the like intermediate yarn.
The four sides of the braided material cut into rectangles are
Similar to the embodiment, the frame portion 3 subjected to thermocompression bonding is provided according to the depth of the groove 7 to be attached, which will be described later.

FIG. 6 shows a method of attaching / detaching the grill 1 in the second embodiment. The cabinet 8 is provided with grooves 7 around the four sides of the upper, lower, left and right sides, and can be freely attached and detached in both directions indicated by arrows in the figure. The mounting method is as in the first embodiment, while the entire grill is distorted while the frame 3 on the four sides of the grill 1 is grooved 7.
Fit in. For the removal, the removal method of the first embodiment is applied correspondingly.

The grill 1 is made of a lightweight material, and if the material itself is made self-supporting by double-rassel knitting and the peripheral portion is thermocompression bonded, a speaker system having a relatively large area as in this embodiment is used. But it can be fully applied.

FIG. 8 shows a modification of the groove in the second embodiment. In this modification, a groove 7 is provided on the upper and lower sides of the front surface of a rectangular cabinet 8. In this case, the attachment of the grill is completed only by sliding the frame portion 3 of the grill 1 along the groove 7 from the side in the direction of the arrow in the figure, and it is easier to attach and detach than providing the groove on the entire circumference.

As can be seen from the modified examples shown in FIGS. 7 and 8, if the position of the groove where the grill can be fixed is set,
The shape of the groove provided in the speaker cabinet can be variously modified regardless of the first and second embodiments.

Next, FIG. 9 shows an example of a device for facilitating the removal of the grill 1 in the second embodiment. Figure 9
(A) is an example in which holes for attachment and detachment are provided inside the grill. The holes 9 are provided at appropriate positions on the grill 1 with a suitable size, for example, such that a few fingers can be inserted. Next, the periphery of the hole 9 is subjected to thermocompression bonding to increase its strength. If such a structure is provided, it can be used as a handle when removing the hole 9, and the grill can be easily removed.

FIG. 9B shows an example in which a tag for removal is provided on the front face of the grill by the same device as the removal of the second embodiment. The joints 11 at both ends of the tag 10 made of cloth or the like, which is cut to an appropriate length, are adhered or sewn to the outer skin 2 on the front surface of the grill 1. If such a mechanism is provided, the grill 1 can be easily removed by pulling the tag, as in the example of FIG. 9A.

According to the above-described example of the device for removal, even if the cabinet is large, it is possible to easily attach and remove by providing a hole or a tag in a part of the grill. (III) Third Embodiment FIG. 10 shows a third embodiment.

In the present embodiment, the fragrance is permeated into the grill in each of the above-mentioned embodiments, or fragrance particles are attached to the grill to promote the fragrance effect. The shape of the grill may be any shape regardless of the above-mentioned embodiments. In the figure, for simplicity, only the grill 1 and the speaker 6 are shown.

In the figure, a large number of aromatic particles 5 are attached to the intermediate yarn 4. It is assumed that an electric signal including information such as music is applied to the speaker 6 by a code (not shown). When the diaphragm of the speaker 6 vibrates due to this electric signal, air amplitude corresponding to the electric signal is generated on the front surface of the diaphragm. The amplitude of this air passes through the inside of the grill 1 provided close to the front surface. On this occasion,
This air vibration activates the fragrance function of the fragrance particles 5, and the fragrance generated from the fragrance particles is discharged to the front surface along with the air vibration.

In other words, the grill 1 according to the present invention has the aroma generating function in addition to the speaker protection and design functions. In addition, since the fragrance function is obtained by utilizing the forced air flow of the speaker vibration, the fragrance effect is high.

In the third embodiment, aromatic particles are used as the aroma source, but the grill material may be impregnated with an aromatic agent to obtain the same effect.
Further, the present invention can be applied to various types of speaker systems because the grill shape can be modified into an arbitrary shape regardless of the above embodiments. The groove for fitting the grill can be modified in many ways according to the shape of the speaker.

[0034]

As described above, according to the present invention, it is not necessary to attach two parts to each other, which is required in the prior art. Therefore, the process for manufacturing the grill can be saved, and the mold is not used. The manufacturing cost can be kept low. Therefore, the grills of different colors can be freely replaced according to the color and mood of the car or room, which can greatly contribute to maintaining the hygiene of the speaker system and improving the design.

Further, the fragrance function or the like can be easily incorporated in the grill, and the fragrance effect can be promoted by the movement of the air in the speaker. Even if the aroma effect disappears, the grill can be easily replaced, so you can easily enjoy other scents.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a speaker grille in a first embodiment.

FIG. 2 is a partial cross-sectional view showing the speaker system in the first embodiment.

FIG. 3 is a partial cross-sectional view showing a method for mounting the speaker grill.

FIG. 4 is a partial cross-sectional view showing a method for removing the speaker grill.

FIG. 5 is an explanatory diagram showing a speaker grille according to a second embodiment.

FIG. 6 is an explanatory diagram showing a method for attaching and detaching the speaker grille according to the second embodiment.

FIG. 7 is an explanatory diagram showing a modified example of the groove in the first embodiment.

FIG. 8 is an explanatory diagram showing a modification of the groove in the second embodiment.

FIG. 9 is an explanatory diagram showing an example of a device for removal in the second embodiment.

FIG. 10 is an explanatory diagram of an aroma effect in the present invention.

FIG. 11 is a cross-sectional view showing a speaker grill in a conventional example.

FIG. 12 is an explanatory diagram showing a method for mounting a speaker grill in a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Speaker grill in this invention 2 ... Skin material 3 ... Frame part 4 ... Intermediate thread 5 ... Aromatic particle 6 ... Speaker 7 ... Groove 8 ... Speaker cabinet 9 ... Hole 10 ... Tag 11 ... Joining part 12 ... Grill base 13 ... Cloth material 14 ... Projection portion 15 ... Speaker grille in the conventional example 16 ... Fixing hole

Claims (1)

[Claims] 1. A cover member having an elastic portion formed by crimping in a predetermined width at a peripheral end portion, and a cabinet having a groove around the front portion for engaging the elastic portion. Speaker system