JP4662906B2 - Sound transmission plate mounting structure, and audio output device and display device having the mounting structure - Google Patents

Description

  The present invention relates to a sound transmitting plate mounting structure in which a sound transmitting plate can be easily removed from a cabinet, and an audio output device and a display device having the mounting structure.

  In devices with speakers, such as electronic musical instruments, audio equipment, and display devices including liquid crystal display devices, sound transmission plates (speaker nets) made of punching metal, etching metal, etc. are welded to cabinets made of synthetic resin moldings at high frequency. There is something to install by. According to this sound transmission plate mounting structure, the sound transmission plate and the cabinet can be completely fixed by high frequency welding, so that the sound transmission plate and the equipment case are rattled by vibrations during the sound generation of the speaker, generating noise. There is nothing to do. However, in this sound transmission plate mounting structure, the sound transmission plate and the cabinet are completely fixed, so when disassembling the equipment, the sound transmission plate and the cabinet cannot be separated, and the resources are reused. There is also a problem that it is not preferable.

FIG. 8 is a cross-sectional view showing a part of the sound transmitting plate mounting structure that can separate the sound transmitting plate from the cabinet. In FIG. 8, reference numeral 103 denotes the sound transmitting plate.
A plurality of claw portions 104 are provided on the lower side of the sound transmission plate 103 that is substantially rectangular in plan view. The cabinet 100 includes an insertion hole 102 through which each claw portion 104 is inserted, and a locking projection 101 provided on the upper side of the insertion hole 102. The locking projection 101 includes a bottom surface 101c, a tip surface 101a, and a contact surface 101b.
In this structure, the lower side end portion of the sound transmitting plate 103 is bent along the lower surface of the insertion hole 102 of the cabinet 100, and further bent at the entry side of the insertion hole 102, so that the claw portion 104 becomes the insertion hole 102. Insert. Then, the front end of the claw 104 is bent at the corner between the bottom surface 101c (the upper peripheral surface of the insertion hole 102) of the locking projection 101 and the front end surface 101a so as to be along the front end surface 101a. The claw portion 104 is folded back at the corner with the contact surface 101b, the tip portion of the claw portion 104 is brought into contact with the contact surface 101b, and the claw portion 104 is locked to the locking convex portion 101.

In Patent Document 1, a plurality of legs formed below the periphery of a sound transmitting plate are inserted into a plurality of leg holes formed in a cabinet, and the sound transmitting plate is rotated to turn the foot at the tip of the leg. An invention of a sound transmitting plate mounting structure is disclosed in which a fixing ring having a protrusion on the lower side corresponding to the leg portion is fitted to the outside of the sound transmitting plate after engaging with the leg hole.
JP-A-2005-020115

However, in the sound transmitting plate mounting structure shown in FIG. 8, when the sound transmitting plate 103 is removed from the cabinet 100, it is difficult to remove the claw portion 104 from the locking projection 101 even if the claw portion 104 is gripped. The periphery must be grasped with pliers or the like, the sound transmitting plate 103 is forcibly pulled to the back side of the cabinet 100, the claw 104 is forcibly deformed, and the claw 104 is removed from the insertion hole 102 and disassembled. There was a problem that the removal workability of the transmission plate 103 was poor.
In the mounting structure of Patent Document 1, when removing the sound transmitting plate from the cabinet, the locking of the fixing ring to the cabinet must be mechanically released from the back side of the cabinet, and there is a problem that the work is complicated. It was.

  The present invention has been made in view of such circumstances, and the sound transmission plate includes a plurality of claw portions in a part of the peripheral portion, and the cabinet includes an insertion hole through which each claw portion is inserted, and a periphery of the insertion hole. A part of the surface protrudes inward, the tip surface that folds the nail part inserted along the part of the peripheral surface, and the nail part is further folded and brought into contact with the end part of the tip surface. A locking projection having a contact surface, and the contact surface is inclined with respect to a part of the peripheral surface so that the locking projection becomes thinner from the insertion side to the back side of the insertion hole. By configuring, when removing the sound transmitting plate from the cabinet using pliers, etc., it is easy to grip the tip of the claw part of the sound transmitting plate, and slide it along the inclination of the contact surface while holding the tip. By crushing, it is possible to easily release the locking of the leading end to the locking projection, and the sound transmitting plate can be easily And to provide a mounting structure of a sound transmitting plate that can be disassembled from the cabinet.

  In the present invention, the front end surface is configured to be inclined with respect to a part of the peripheral surface so that the locking convex portion becomes thinner from the insertion side to the back side of the insertion hole. An object of the present invention is to provide a sound transmitting plate mounting structure that can be crushed while further sliding the tip of the claw part with its sliding surface slid onto the tip surface, and can easily take out the claw from the insertion hole. And

  And this invention is a nail | claw, when a cabinet is equipped with the projection part provided in the side facing the latching convex part of an insertion hole, and the recessed part provided in the opposite side to the latching convex part of a projection part. The tip of the part is easily pressed against the protrusion, and the tip is easily crushed, and one end of a tool such as pliers is locked in the recess so that the tip of the claw can be easily grasped by the other end of the tool. An object of the present invention is to provide a sound transmitting plate mounting structure.

  Further, according to the present invention, the cabinet includes the concave portion and is provided with a cabinet half provided on a side through which sound is transmitted and a cabinet half provided on a side opposite to the side through which sound is transmitted, The cabinet half is configured to be fitted into the recess, so that the recess for locking one end of a tool such as pliers also serves as the fitting portion of the cabinet half. An object of the present invention is to provide a sound transmitting plate mounting structure in which a device having a structure is compact.

  In addition, the present invention includes a sound source, a cabinet that covers the sound source, and a sound transmission plate that covers the sound source and the cabinet and transmits sound generated by the sound source to the outside. An object of the present invention is to provide an audio output device that can be easily disassembled by configuring the sound transmitting plate to be attached to a cabinet.

  The present invention includes a display surface, a sound source, a cabinet that covers the periphery of the display surface and the sound source, and a sound transmission plate that covers the sound source and the portion of the cabinet that covers the sound source. An object of the present invention is to provide a display device that can be easily disassembled by configuring the sound transmission plate to be attached to the cabinet by the transmission plate mounting structure.

  The sound transmitting plate mounting structure according to the present invention is a structure in which a sound transmitting plate that transmits sound generated by a sound source to the outside is attached so as to cover a part or all of a cabinet that covers the sound source. Has a plurality of claw portions in a part of the peripheral portion, and the cabinet includes an insertion hole through which each claw portion is inserted, and a part of the peripheral surface of the insertion hole protrudes inward. A front end surface that bends and extends along the claw portion that is inserted along the portion, and a latching convex portion that has a contact surface on which the end portion of the front end surface is further folded and brought into contact. In the mounting structure in which the claw portion is locked to the distal end surface and the contact surface, the contact surface is formed so that the locking convex portion becomes thinner from the entrance side to the back side of the insertion hole. It is characterized by being inclined with respect to a part of the peripheral surface.

  In the present invention, since the contact surface is inclined, when the sound transmitting plate is removed from the cabinet using a tool such as pliers, the tip of the sound transmitting plate is easily grasped and the tip is grasped. By sliding along the inclination of the contact surface in the state and crushing the claw part into a flat shape, it is possible to easily release the locking of the tip part to the locking convex part and pull it out from the insertion hole, easily The sound transmission plate can be dismantled from the cabinet.

  In the sound transmitting plate mounting structure according to the present invention, the distal end surface is inclined with respect to a part of the peripheral surface so that the locking convex portion becomes thinner from the entrance side to the back side of the insertion hole. It is characterized by that.

  In the present invention, it is possible to crush while further sliding the tip end portion of the claw portion on which the contact surface is slid to the tip surface, and the claw portion can be easily taken out from the insertion hole.

  In the sound transmitting plate mounting structure according to the present invention, the cabinet includes a protruding portion in which a portion facing the part of the peripheral surface of the insertion hole protrudes inward, and a side opposite to the insertion hole of the protruding portion. And a recess provided on the surface.

In the present invention, it is easy to crush the tip by pressing the tip of the claw on the projection.
And it becomes easy to grasp the front-end | tip part of a nail | claw part by the other end part of a tool by latching one end part of tools, such as pliers, in a recessed part.

  In the sound transmitting plate mounting structure according to the present invention, the cabinet has the concave portion, and is provided with a cabinet half provided on the side that transmits sound and a cabinet half provided on the side opposite to the side that transmits sound. The cabinet half is configured to be fitted into the recess.

  In the present invention, since the recess for locking one end of a tool such as pliers also serves as the fitting portion of the cabinet half, the structure of the device having the sound transmitting plate mounting structure is simplified and compact.

  The audio output device according to the present invention is an audio output device including a sound source, a cabinet that covers the sound source, and a sound transmission plate that covers the sound source and the cabinet and transmits sound generated by the sound source to the outside. The sound transmission plate is attached to the cabinet by any one of the sound transmission plate mounting structures.

  In the present invention, disassembly can be performed easily.

  A display device according to the present invention covers a display surface, a sound source, a peripheral portion of the display surface and a cabinet that covers the sound source, the sound source, and a portion of the cabinet that covers the sound source, and is generated by the sound source. In a display device including a sound transmission plate that transmits the sound to the outside, the sound transmission plate is attached to the cabinet by any one of the sound transmission plate attachment structures described above.

  In the present invention, disassembly can be easily performed in a display device such as a liquid crystal television receiver.

  According to the sound transmitting plate mounting structure of the present invention, the abutment surface of the locking projection of the cabinet that contacts the tip of the claw portion of the sound transmitting plate is from the insertion side of the insertion hole through which the claw portion is inserted. Since it is configured to incline with respect to a part of the peripheral surface of the insertion hole so that the locking convex portion becomes thinner toward the back side, the sound transmitting plate is removed from the cabinet using a tool such as pliers. In this case, it is easy to grasp the tip of the claw portion of the sound transmitting plate, slide it along the inclination of the abutment surface while grasping the tip, and crush the claw portion into a flat shape, thereby easily engaging the tip. It is possible to release the locking to the stop convex portion and to remove the sound transmitting plate from the cabinet.

  In addition, according to the sound transmitting plate mounting structure of the present invention, the periphery of the insertion hole is arranged such that the front end surface of the locking projection is thinner from the entrance side to the back side of the insertion hole. Since it is configured to incline with respect to a part of the surface, it can be crushed while further sliding the tip of the claw part sliding the contact surface to the tip surface, and the claw part can be easily inserted into the insertion hole. Can be taken out from.

  According to the sound transmitting plate mounting structure of the present invention, the cabinet is provided on the side of the insertion hole facing the locking projection and on the side opposite to the locking projection of the projection. Since the tip part of the claw part is pressed against the projection part and the tip part is easily crushed, and the other end part of the pliers is locked with the one end part of the pliers or the like in the recess part. It becomes easier to grip the tip of the nail.

  Furthermore, according to the sound transmitting plate mounting structure of the present invention, the cabinet has the recess and is provided on the opposite side of the side through which the sound is transmitted, and the cabinet half provided on the side through which the sound is transmitted. The cabinet half is configured to be fitted into the recess, so that the recess for locking one end of a tool such as pliers is the fitting part of the cabinet half. Also, the structure is simplified, and the device having the sound transmitting plate mounting structure is compact.

  The sound output device of the present invention includes a sound source, a cabinet that covers the sound source, and a sound transmission plate that covers the sound source and the cabinet and transmits sound generated by the sound source to the outside. Since the sound transmitting plate is mounted on the cabinet by the mounting structure of the transmitting plate, disassembly can be easily performed.

  According to the display device of the present invention, the display surface, the audio output unit that transmits the sound generated by the sound source to the outside, the cabinet that covers the peripheral portion of the display surface and the sound source, the sound source, and the sound source of the cabinet are covered. Since the sound transmitting plate is attached to the cabinet by any one of the sound transmitting plate mounting structures described above, disassembly can be easily performed.

Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof.
Embodiment 1 FIG.
FIG. 1 is a cross-sectional view illustrating a partial configuration of the display device 9 according to Embodiment 1 of the present invention, and FIG. 2 is a schematic front view illustrating the configuration of the front cabinet 91 of the display device 9.

  The display device 9 as a liquid crystal television receiver has a substantially rectangular shape when viewed from the front, a display unit 92 having a display surface 92a for displaying a TV image, a front cabinet 91 that covers the periphery of the display surface 92a, and a display surface 92a. And a rear cabinet 93 that covers the back side.

An audio output device 4 is attached to the lower part of the display device 9.
The sound output device 4 covers the sound source 1 such as a woofer, the cabinet 2 that covers the sound source 1 and is connected to the front cabinet 91 of the display device 9, covers the front surface of the cabinet 2 and the sound source 1, and is generated by the sound source 1. And a sound transmission plate 3 having a large number of sound transmission holes for transmitting sound to the outside. The sound transmission plate 3 is formed in a substantially rectangular shape having a horizontal length longer than a vertical length.
The sound source 1 includes a woofer that generates a low-frequency sound wave, a squawker that generates a medium-high sound wave, and a tweeter that generates a high-frequency sound wave, and these are juxtaposed in a lateral direction.

The cabinet 2 is made of synthetic resin or aluminum, has a support portion for supporting two sets of sound sources 1 on both sides in the lateral direction and a hole for allowing sound to pass therethrough, and a plurality of insertion holes 20, 20,. They are spaced apart in the longitudinal direction.
A locking projection 21 extending inward is provided on the upper side of each insertion hole 20 of the cabinet 2, and further on the lower side of the insertion hole 20 from the locking projection 21. An extended protrusion 22 is provided.

The locking projection 21 is formed so that the claw portion 31 is located at the back of the insertion hole 20 when a bottom surface 21c that is the upper peripheral surface of the insertion hole 20 and a claw portion 31 of the sound transmission plate 3 described later are inserted into the insertion hole 20. A tip surface 21a that is bent along the side, and a contact surface 21b that folds and contacts the tip portion of the claw portion 31 at a corner with the tip surface 21a. The contact surface 21b is inclined with respect to the bottom surface 21c at an angle of approximately 10 °, for example, so that the locking projection 21 becomes thinner from the insertion side of the insertion hole 20 toward the back side. This angle is not limited to 10 °. And the front end surface 21a also inclines upward so that the latching convex part 21 becomes thin toward the back | inner side from the entrance side of the insertion hole 20. FIG.
The protrusion 22 has an extended surface 22 b that is the lower peripheral surface of the insertion hole 20. A recess 22 a is provided on the opposite side of the extended surface 22 b of the protrusion 22 of the cabinet 2. A guide surface 22c that is inclined and continues to the recess 22a is provided on the inner side of the protrusion 22, and the bottom end of the rear cabinet 93 is fitted into the recess 22a by being guided by the guide surface 22c. ing.

  The sound transmission plate 3 is formed by forming a metal plate such as stainless steel into a rectangular shape corresponding to the cabinet 2, and has the sound transmission holes on the entire surface or a portion corresponding to the sound source 1. The claw portions 31, 31... Inserted into the insertion holes 20 are provided on the lower side portion of the sound transmission plate 3, and the claw portions 32, 32,.

The claw portion 31 has a plate shape or a rectangular frame shape.
3A and 3B are perspective views showing a claw portion 31 having a rectangular frame shape, where FIG. 3A is a perspective view showing a state where the claw portion 31 is unfolded, and FIG. 3B is a perspective view showing a state where the claw portion 31 is bent. FIG.
As shown in FIG. 3 (b), the claw portion 31 is bent twice so that the side view is U-shaped and is locked to the locking convex portion 21.

In the display device 9 configured as described above, the lower side end of the sound transmitting plate 3 is bent along the surface of the protrusion 22, and further bent at the entry side of the insertion hole 20 to insert the claw portion 31 into the insertion hole. 20 is inserted. Then, the claw portion 31 is bent at the corner portion between the bottom surface 21c and the tip surface 21a so as to follow the tip surface 21a, and further bent at the corner portion between the tip surface 21a and the contact surface 21b, and the tip portion of the claw portion 31 is abutted. The nail | claw part 31 is made to contact | abut on the contact surface 21b, and the latching convex part 21 is latched.
And the nail | claw part 32 provided in the upper side part of the sound transmission board 3 is penetrated by the penetration hole 91a provided in the connection part of the front cabinet 91 and the cabinet 2, and the claw part 32 is latched, and sound transmission is carried out. The plate 3 is attached to the cabinet 2.

Below, the operation | work when dismantling the display apparatus 9 and removing the sound transmissive board 3 from the cabinet 2 is demonstrated.
4 to 6 are partially enlarged cross-sectional views showing the locking protrusion 21 and the protrusion 22.
First, as shown in FIG. 4, the fitting of the rear cabinet 93 to the recess 22a of the protrusion 22 is released.
Then, one end portion of the pliers 10 is hooked on the concave portion 22a, the other end portion of the pliers 10 is hooked on the tip portion of the claw portion 31 that is in contact with the contact surface 21b, and the latching convex portion 21 and the projection portion 22 are sandwiched. In this state, the tip is slid along the inclination of the contact surface 21b.

  Next, as shown in FIG. 5, the tip portion of the claw portion 31 on which the contact surface 21 b is slid is further slid to the tip surface 21 a, and the other end portion of the pliers 10 holds the nail on the extended surface 22 b of the projection portion 22. The tip part of the part 31 is pressed, and the tip part is crushed so as to be folded in half.

  Then, as shown in FIG. 6, the tip end portion of the claw portion 31 folded in half is extracted from the insertion hole 20.

In the mounting structure of the sound transmission plate 3 of the display device 9 of the present embodiment configured as described above, the contact surface 21b of the locking projection 21 of the cabinet 2 is from the entrance side of the insertion hole 20 to the back side. Since the locking convex portion 21 is inclined upward so as to become thin, when the sound transmitting plate 3 is removed from the cabinet 2 using the pliers 10, the tip portion of the claw portion 31 can be easily grasped. By sliding along the inclination of the contact surface 21b while gripping the portion, the locking of the tip portion to the locking convex portion 21 can be easily released.
Then, the tip of the claw portion 31 on which the abutment surface 21b is slid is further slid onto the tip surface 21a inclined upward, and the tip is pressed against the protruding portion 22 and crushed. The part 31 can be taken out from the insertion hole 20.

In the above-described embodiment, the case where the recess 22a also serves as the fitting portion to the cabinet 2 at the bottom end of the rear cabinet 93 has been described, but the present invention is not limited to this. However, it is preferable that the concave portion 22a also serves as the fitting portion because the configuration of the display device 9 becomes simple and compact.
In the above embodiment, the case where the cabinet 2 includes the protrusions 22 is described. However, the present invention is not limited to this. The pliers 10 are hooked on one end of the pliers 10 to the lower end of the cabinet 2. You may make it hold | suppress the front-end | tip part of the nail | claw part 31 with the other end part. However, it is preferable to provide the protruding portion 22 because the tip end portion of the claw portion 31 can be easily pressed and crushed against the extending surface 22b of the protruding portion 22.

Embodiment 2. FIG.
FIG. 7 is a partially enlarged cross-sectional view showing the locking projection 23 and the projection 22 of the cabinet 2 of the display device according to Embodiment 2 of the present invention. The display device according to the second embodiment has the same structure as the display device 9 except that the shape of the locking projection 23 is different from the shape of the locking projection 21 of the display device 9 according to the first embodiment. .

  The locking convex portion 23 according to the present embodiment is configured so that the bottom surface 23c that forms one surface of the insertion hole 20 and the claw portion 31 when the claw portion 31 of the sound transmission plate 3 is inserted through the insertion hole 20. A distal end surface 23a that is bent along the back side of the insertion hole 20 and an abutment surface 23b that abuts the distal end portion of the claw portion 31 at the corner with the distal end surface 23a are provided. The contact surface 23b is inclined at an angle of, for example, approximately 10 ° so that the locking projection 23 becomes thinner from the insertion side of the insertion hole 20 toward the back side. The distal end surface 23a is inclined downward from the entry side of the insertion hole 20 toward the back side.

  Also in the present embodiment, the abutment surface 23b is inclined so that the locking projection 23 becomes thinner from the insertion side of the insertion hole 20 through which the claw portion 31 is inserted toward the back side. When the sound transmitting plate 3 is removed from the cabinet 2 using the, the tip of the claw portion 31 of the sound transmitting plate 3 can be easily grasped, and the tip can be slid along the inclination of the contact surface 23b. Thus, the locking of the distal end portion to the locking convex portion 21 can be easily released. And since the front end surface 23a is inclined downward, the locking of the end of the pliers 10 slid along the contact surface 23b to the contact surface 23b is released at the front end of the contact surface 23b. The nail | claw part 31 can be crushed quickly.

In the first and second embodiments, the case where the metal sound transmission plate 3 is used has been described. However, the present invention is not limited to this, and the sound transmission plate 3 may be made of synthetic resin. Good.
In the first and second embodiments, the structure for attaching the sound transmitting plate 3 to the cabinet 2 according to the present invention is applied to a display device as a liquid crystal television receiver. However, the present invention is not limited to this. However, the present invention may be applied to other display devices, may be applied to a single audio output device, or may be applied to other electronic devices including the audio output device.

It is sectional drawing which shows the structure of a part of display apparatus which concerns on Embodiment 1 of this invention. It is a schematic front view which shows the structure of the front cabinet of a display apparatus. It is a perspective view which shows the nail | claw part which is rectangular frame shape. It is a partially expanded sectional view which shows a latching convex part and a projection part. It is a partially expanded sectional view which shows a latching convex part and a projection part. It is a partially expanded sectional view which shows a latching convex part and a projection part. It is a partially expanded sectional view which shows the latching convex part and projection part of the cabinet of the display apparatus which concern on Embodiment 2 of this invention. It is sectional drawing which shows a part of attachment structure of the sound transmission board which can isolate | separate a sound transmission board from a cabinet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sound source 2 Cabinet 20 Insertion hole 21, 23 Locking convex part 21a, 23a Tip surface 21b, 23b Contact surface 21c, 23c Bottom 22 Projection part 22a Concave 22b Extension surface 22c Guide surface 3 Sound transmission board 31 Claw part 4 Audio | voice output Device 9 Display device 91 Front cabinet 92 Display unit 92a Display surface 93 Rear cabinet

Claims (6)

A sound transmitting plate that transmits the sound generated by the sound source to the outside is a structure that is attached so as to cover a part or all of the cabinet that covers the sound source,
The sound transmitting plate has a plurality of claw portions on a part of the peripheral edge portion,
The cabinet is
An insertion hole for inserting each nail part,
A part of the peripheral surface of the insertion hole protrudes inward, a tip surface that is bent along the claw part inserted along the part of the peripheral surface, and an end part of the tip surface of the claw part And a locking projection having an abutting surface to be folded back and
In the mounting structure in which the claw portion is locked to the tip surface and the contact surface,
The sound transmitting plate, wherein the contact surface is inclined with respect to a part of the peripheral surface so that the locking convex portion becomes thinner from the entrance side to the back side of the insertion hole. Mounting structure.   The sound transmitting plate according to claim 1, wherein the front end surface is inclined with respect to a part of the peripheral surface so that the locking convex portion is thinner from the insertion side to the back side of the insertion hole. Mounting structure. The cabinet is
A projecting portion in which a portion facing a part of the peripheral surface of the insertion hole protrudes inward;
The sound transmitting plate mounting structure according to claim 1, further comprising: a concave portion provided on a side opposite to the insertion hole of the protrusion. The cabinet has the concave portion, and is composed of a cabinet half provided on the side that transmits sound, and a cabinet half provided on the side opposite to the side that transmits sound,
The sound transmitting plate mounting structure according to claim 3, wherein the cabinet half is configured to be fitted into the recess. In an audio output device including a sound source, a cabinet that covers the sound source, and a sound transmission plate that covers the sound source and the cabinet, and transmits sound generated by the sound source to the outside.
5. The sound output device according to claim 1, wherein the sound transmission plate is attached to the cabinet by the sound transmission plate mounting structure according to any one of claims 1 to 4. Sound that covers the display surface, the sound source, the peripheral edge of the display surface and the cabinet that covers the sound source, the sound source and the portion of the cabinet that covers the sound source, and transmits the sound generated by the sound source to the outside In a display device comprising a transmission plate,
A display device, wherein the sound transmission plate is attached to the cabinet by the sound transmission plate mounting structure according to claim 1.

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