JP3056767U - Speaker mounting unit - Google Patents

Abstract

(57) [Summary] In a speaker mounting unit, a speaker is securely mounted by absorbing a variation in thickness of an outer edge portion of the speaker. The speaker is mounted without chatter without using a damping material such as a nonwoven fabric. SOLUTION: A support 1 is provided with a clamping portion 4 which cooperates with a seating surface 12 of the support 1 to clamp an outer edge portion 110 of a speaker 100. The holding portion 4 includes a pair of projecting portions 13a, 13a.
b, and has a bent beam portion 41 extending between them. The outer edge 11 of the speaker 100 is located between the beam 41 and the seat 12.
When 0 is inserted, the beam portion 41 bends and deforms due to its elasticity to absorb variations in the thickness of the outer edge portion 110, and at the same time,
The beam portion 41 presses the outer edge portion 110 against the seat surface 12 to suppress occurrence of chatter during speaker operation.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a speaker mounting unit.

[0002]

[Prior art]

 The applicant of the present application has proposed a speaker mounting unit useful in a case where the space for mounting a speaker to a cabinet of an apparatus is limited to a small place, such as a video-integrated television (Japanese Patent Application No. 9-9535). No. has been proposed earlier. In this speaker mounting unit, pressing pieces are provided at a plurality of positions of a plate-like support having sound emission holes, and the outer edge of the speaker is provided on a back surface of the support with a seat surface provided on the back side of the support. It is possible to attach the speaker to the support by holding it with the holding piece.

FIG. 7 shows a speaker mounting unit proposed in Japanese Utility Model Application No. 9-9535 and a speaker mounting unit B having the same structure as that of the speaker mounting unit. In this device, the outer edge 110 of the speaker 100 is sandwiched between the support 1 having a seat surface 12 on the back surface on which the outer edge 110 of the speaker 100 is superimposed, in cooperation with the seat surface 12. A plurality of presser pieces 2 are distributed to a plurality of places (three places in the figure). In the speaker mounting unit B in the illustrated example, three holding pieces 2... Are L-shaped fixed holding pieces that protrude inward from the mounting pieces 3 that are obliquely raised on one side of the rectangular support 1. 21 and a box-shaped fixing press formed by cutting off the lower end of an inner wall 15 of a hollow box-shaped portion 14 provided on a side wall 13 raised on another side of the support 1 in a slit shape. It comprises a piece 22 and a movable pressing piece 24 which is connected to the other side of the support 1 via a hinge 23 so as to be opened and closed.

When the speaker 100 is mounted on the speaker mounting unit B shown in FIG. 7, the speaker 100 is placed on the support 1, and its outer edge 110 is fixed to the seating surface 12 of the support 1 and the fixing pressing piece 21. The movable presser piece 24 is closed inward via a hinge 23, and is inserted into the screw insertion hole 26 of the movable presser piece 24. A procedure is performed in which the inserted set screw is screwed into the support 1 and the movable holding piece 24 is fixed to the support 1.

[0005]

[Problems to be solved by the invention]

 However, in the speaker mounting unit B described with reference to FIG. 7, the inner wall 15 of the box-shaped fixing press piece 22 as the press piece 2 has a structure that cannot be flexibly deformed due to its structure. Therefore, when the thickness of the outer edge portion 110 of the speaker 100 varies, the variation cannot be absorbed. That is, when the outer edge 110 is thin, the outer edge 11 cannot be reliably held by the cooperation of the box-shaped fixing press piece 22 and the seating surface 12. When the outer edge 110 is thick, it is difficult to insert the outer edge 11 into the slit 25. When the speaker 100 is attached to the speaker mounting unit B in the procedure described above with reference to FIG. 7 particularly when the thickness of the outer edge portion 11 is small, when the speaker 100 is operated, the box-shaped fixing press piece 22 It has been found that chatter may occur.

[0008] Therefore, as shown in FIG. 8, a flexible damping material 5 made of a nonwoven fabric is provided so as to straddle the rear surface side and the outer peripheral surface side of the outer edge portion 110 of the speaker 100. When the seating surface 12 of the support 1 and the inner side wall 15 of the box-shaped fixing pressing piece 22 cooperate with each other to press the outer edge 110 of the speaker 100 via the support member 5, the above-described chatter occurs. That was gone.

However, if the vibration damping material 5 made of nonwoven fabric is used extra, the number of parts and the number of assembling steps increase accordingly, which leads to a rise in manufacturing cost.

The present invention has been made under the above circumstances. Even if the thickness of the outer edge of the speaker varies, it can be reliably mounted by absorbing the variation in the thickness of the outer edge. Speaker mounting that allows the speaker to be mounted without chatter without using damping material such as non-woven fabric, and without using other extra parts or materials. It is intended to provide a unit for use.

A further object of the present invention is to provide a speaker mounting unit which can be manufactured by only slightly improving the speaker mounting unit B described in FIG.

[0010]

[Means for Solving the Problems]

 The speaker mounting unit according to the present invention sandwiches the above-mentioned outer edge of the speaker in cooperation with the above-mentioned seating surface on a plate-like support having a seating surface on the back surface on which the outer edge of the speaker overlaps. And a pair of protrusions provided on the support outside the seating surface and spaced from each other with a space therebetween, and provided between the protrusions. And a beam portion which comes into contact with the outer edge portion of the speaker superposed on the seating surface and presses the outer edge portion against the seating surface.

With this configuration, the variation in the thickness of the outer edge of the speaker inserted between the seat and the beam is absorbed by the elastic deformation of the beam. Therefore, the speaker can be securely mounted regardless of whether the outer edge of the speaker is thin or thick.

Further, since the beam portion of the holding portion has a property of pressing the outer edge of the speaker against the seating surface of the support member, the beam portion has a property of exerting a pressure suppressing effect (hereinafter referred to as a “pressing force”). This is useful for suppressing chatter when the speaker is operated. In the present invention, the beam portion of the clamping portion can be formed by removing a part of the inner wall 15 of the box-shaped fixing press piece 22 described with reference to FIG. This point will be described in more detail in the description of the embodiment below.

It is desirable that the support, the pair of protrusions, and the beam are formed by an integrally molded synthetic resin. According to this, not only the effect of absorbing the variation in the thickness of the outer edge of the speaker due to the beam portion is exerted well, but also the elasticity of the beam portion is favorably exhibited by the elasticity inherent to the synthetic resin. Become so.

[0014] The pair of protrusions can be formed by plate-like side walls that are raised at the outer edge of the support. The “side wall portion” here can be formed by the side wall portion 13 described with reference to FIG.

It is desirable that the beam portion bends into a shape that comes into contact with the outer edge portion of the speaker superimposed on the seating surface and projects above the outer edge portion. If the beam is bent in this way, even if the distance between the pair of protrusions is reduced, the beam can be formed longer than the distance between the pair of protrusions. It becomes easy to exhibit bending deformation and elasticity.

[0016] A structure in which the holding portion and the holding piece that cooperates with the seating surface to hold the outer edge portion of the speaker are separately provided on the support at different locations. Can be adopted. By doing so, the outer edge of the speaker is clamped by the cooperating operation of the clamping portion and the holding piece and the seating surface which are distributed to different places, and the mounting stability is improved. In this case, it is possible to adopt a configuration in which the holding portion and the holding piece are separately provided at three positions of the support body. It is possible to secure high mounting stability by minimizing the number of holding pieces and holding pieces.

A paper rim provided on the front side of the outer edge of the speaker is superimposed on the seat surface, and the beam is provided on a back side of the outer edge of the speaker. It is desirable that the speaker be in contact with the diaphragm of the speaker and the metal frame holding the border frame.

In general-purpose speakers (eg, dynamic speakers) used for audio-visual equipment (AV equipment), a diaphragm is generally held by a metal frame having a front-spread shape. A paper rim having a predetermined thickness is fixed to the outer periphery of the plate, and the rim projects slightly forward from the outer periphery of the frame. Therefore, when such a general-purpose speaker is mounted on the speaker mounting unit according to the present invention, the mounting structure is as described above. That is, the paper-made rim provided on the front side of the outer edge of the speaker is superimposed on the bearing surface of the support, and the beam of the clamping portion holds the diaphragm of the speaker and the rim. The metal frame that is in contact.

Among the above-mentioned general-purpose speakers, a general and easily available speaker is a so-called round speaker having a regular circular rim. As a speaker mounting unit for mounting such a speaker, it is desirable that the seating surface is formed in a shape that matches the rounded edge, and in such a case, a paper-made unit is used. The elasticity of the rim itself exerts a damping effect, which helps to reduce chatter when the speaker is operated.

It is desirable that a sound emission hole is formed in a portion of the support surrounded by the seating surface. In this case, the sound emitted from the speaker is transmitted to the front through the sound output hole.

It is desirable that the support has a mounting piece for a cabinet of a device such as an audiovisual device. Such a speaker mounting unit can be mounted on a cabinet using a mounting piece.

[0022]

[Embodiment of the invention]

 1 is a schematic perspective view showing the speaker mounting unit A and the speaker 100 according to the present invention, FIG. 2 is a schematic perspective view showing an enlarged main part of the speaker mounting unit A, and FIG. FIG. 4 is an enlarged explanatory view showing a main part of FIG. 3, FIG. 5 is an enlarged cross-sectional view taken along line VV of FIG. 3, and FIG. 6 is a view of VI- of FIG. It is a VI line expanded sectional view.

The difference between the speaker mounting unit A shown in FIG. 1 and the speaker mounting unit B described with reference to FIG. 7 is that a clamping portion 4 is provided instead of the box-shaped fixing press piece 22 in FIG. The other points are the same as those of the speaker mounting unit B described with reference to FIG. 7, and the same or corresponding parts will be denoted by the same reference characters.

As shown in FIGS. 1 to 4, the clamping portion 4 includes a pair of projecting portions 13 a and 13 b which are provided outside the bearing surface 12 of the support 1 and are spaced from the support 1 with a space therebetween. And a beam portion 41 provided between the projecting portions 13a and 13b. The support 1, the pair of protrusions 13 a and 13 b, and the beam 41 are integrally formed of synthetic resin. Therefore, the beam portion 41 is provided with elasticity or bending deformation characteristic of the synthetic resin. The pair of protrusions 13a and 13b are formed by plate-like side walls 13 raised on the outer edge of the support 1, and the side walls 13 are the speaker mounting unit described with reference to FIG. B corresponds to the side wall 13.

The clamping portion 4 corresponds to a portion in which a part of the inner wall 15 of the box-shaped fixing press piece 22 described with reference to FIG. 7 is cut in a slit shape and the remaining portion is formed as a beam portion 41. I do. Therefore, as shown in FIG. 2, the clamping portion 4 has a slit 25 provided between the seat surface 12 and the beam portion 41, an upper plate portion 42, and an upper plate portion 42. A slit-shaped gap 43 provided between the beam section 41 and the beam section 41 is provided. The width of the slit 25 is slightly smaller than the thickness of the outer edge 110 of the speaker 100, and the gap 43 has a function of absorbing the bending deformation of the beam 41. The holding portion 4 is hollow, and a protruding portion 13b on one side is provided with a planar wall portion 13c as shown by a broken line in FIG.

As shown in FIG. 2, the pair of protrusions 13 a and 13 b are displaced from each other in the inward and outward directions D, and the beam 41 has one end 41 a on one side. The other end portion 41b extends at right angles to the one end portion 41a from the other protrusion portion 13b, and the other end portion 41b extends from the other protrusion portion 13b at right angles to the one end portion 41a. The portion 41b is connected to the other by an inclined portion 41c. When the beam portion 41 is bent in this manner, the beam portion 41 is longer than the distance between the pair of projecting portions 13a and 13b, so that the beam portion 41 is easily bent and has elasticity.

In addition, in the speaker mounting unit A, the outer edge 110 of the speaker 100 is sandwiched between the support 1 and the seating surface 12 in the same manner as described with reference to FIG. A plurality of holding pieces 2 to be attached are distributed to a plurality of places (two places in the illustrated example), and these holding pieces 2 include a fixed holding piece 21 and a movable holding piece 24. In FIG. 1, reference numeral 16 denotes a sound emission hole formed inside the bearing surface 12 of the support 1.

When the speaker 100 is mounted on the speaker mounting unit A shown in FIG. 1 or the like, the speaker 100 is placed on the support 1, and its outer edge 110 is fixed to the seating surface 12 of the support 1 and the fixing pressing piece 21. Then, the movable holding piece 24 is closed inward via the hinge 23, and the set screw inserted into the screw insertion hole 26 of the movable holding piece 24 is inserted. The procedure of screwing 27 into the support 1 side and fixing the movable holding piece 24 to the support 1 is performed. When the speaker 100 is mounted in such a procedure, even if the thickness of the outer edge 110 of the speaker 100 varies, the variation is absorbed by the beam 41 being deformed by its elasticity.

When the speaker 100 is mounted, the beam 41 of the clamping portion 4 is slightly deformed and pushed up by the outer edge 110 of the speaker 100 pushed into the slit 25, so that the beam 41 is The outer edge 110 of the speaker 100 is pressed against the seating surface 12 by the elastic return force. At this time, the resilience of the beam portion 41 exerts a vibration damping effect, and chatter when the speaker 100 is operated is suppressed. In addition, as shown in FIG. 6, the fixing holding piece 24 is useful for fixing the outer edge 110 of the speaker 100 in cooperation with the seat surface 12. The same applies to the movable holding piece 24.

In the illustrated speaker 100, a diaphragm (not shown) is held by a metal frame 120 having a front-spread shape, and the outer peripheral portion of the diaphragm has a predetermined thickness. The paper-made rim 130 is firmly fixed, and the rim 130 protrudes slightly forward from the outer periphery of the frame 120 as shown in FIGS. Therefore, when such a general-purpose speaker 100 is mounted on the speaker mounting unit A, as shown in FIGS. 5 and 6, a paper border provided on the surface side of the outer edge portion 110 of the speaker 100 is used. The portion 130 is superimposed on the bearing surface 12 of the support 1, and the beam portion 41 of the clamping portion 4 contacts the metal frame 120 of the speaker 100. In this case, the elasticity of the paper rim 130 itself exerts a vibration damping effect, which helps to suppress chatter when the speaker 100 is operated. Further, the illustrated speaker 100 is a round speaker, and the rim portion 130 is a perfect circle. The seating surface 12 is formed in a shape that matches the rounded edge 130.

The mounting piece 3 provided on the support 1 is mounted on a cabinet of a device such as an audiovisual device.

[0032]

[Effect of the invention]

 According to the present invention, even if the thickness of the outer edge of the speaker varies, it is possible to absorb the variation in the thickness of the outer edge and securely mount the speaker. It is possible to provide a speaker mounting unit capable of mounting a speaker in a state where chatter does not occur without using a vibration material and without using other extra parts or materials. Further, the speaker mounting unit according to the present invention has an advantage that it can be manufactured by making only a slight improvement to the speaker mounting unit B described in FIG.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a speaker mounting unit and a speaker according to the present invention.

FIG. 2 is an enlarged schematic perspective view of a main part of a speaker mounting unit.

FIG. 3 is a rear view in a state where a speaker is mounted on the speaker mounting unit.

FIG. 4 is an explanatory diagram showing an enlarged main part of FIG. 3;

FIG. 5 is an enlarged sectional view taken along line VV of FIG. 3;

FIG. 6 is an enlarged sectional view taken along line VI-VI of FIG. 3;

FIG. 7 is a schematic perspective view showing a conventional speaker mounting unit and a speaker.

FIG. 8 is a cross-sectional view for explaining a conventional problem.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support body 2 Pressing piece 3 Mounting piece part 4 Nipping part 12 Seat surface 13 Side wall part 13a, 13b Projection part 16 Sound emission hole 41 Beam part 100 Speaker 110 Speaker outer edge part 120 Frame body 130 Edge part

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[Procedure amendment]

[Submission date] October 16, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 7

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claim 8

[Correction method] Change

[Correction contents]

Claims (10)

[Utility model registration claims] 1. A plate-like support having, on the back side, a seat surface on which the outer edge portion of a speaker overlaps, is provided with a pressing portion which cooperates with the seat surface to hold the outer edge portion of the speaker. The holding portion is provided between the pair of protrusions, which are provided outside the seating surface and is opposed to the support at a distance from the support, and is provided between the protrusions and overlaps the seating surface. And a beam portion which comes into contact with the outer edge of the loudspeaker and presses the outer edge against the seat surface. 2. The speaker mounting unit according to claim 1, wherein the support, the pair of protrusions, and the beam are formed of a synthetic resin. 3. The speaker mounting unit according to claim 2, wherein the pair of projecting portions are plate-like side walls that are raised on the outer edge of the support. 4. The speaker mounting unit according to claim 2, wherein the beam portion is bent so as to come into contact with the outer edge portion of the speaker superimposed on the seating surface and to protrude over the outer edge portion. . 5. The supporting member is provided with the pressing portion and a pressing piece which cooperates with the seating surface and clamps the outer edge portion of the speaker in separate places. The speaker mounting unit according to any one of claims 1, 2, 3, and 4. 6. The speaker mounting unit according to claim 5, wherein the holding portion and the pressing piece are provided separately at three positions of the support. 7. A paper edge provided on the front side of the outer edge of the speaker is superimposed on the seating surface, and the beam is provided on the back side of the outer edge of the speaker. The first, second, third, fourth, fifth, and fifth aspects of the present invention are configured to contact the diaphragm of the speaker and the metal frame holding the edge frame. 6. The speaker mounting unit according to any one of 6. 8. The method according to claim 1, wherein the seating surface is formed in a shape that matches the rounded edge.
Claim 2, Claim 3, Claim 4, Claim 5, Claim 6,
A speaker mounting unit according to claim 7. 9. A sound emission hole is formed in a portion of the support body surrounded by the seating surface, wherein the sound emission hole is opened. The speaker mounting unit according to claim 7. 10. The apparatus according to claim 1, wherein said support has a mounting piece for an equipment cabinet. A speaker mounting unit according to claim 9.