JP2010232924A - Ceiling material with speaker function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively suppress solid-state propagation to a periphery by preventing vibration of a ceiling decorative sheet from being propagated via an installation frame to a building body. <P>SOLUTION: In the ceiling material with a speaker function, a vibrator 6 is mounted on the rear face of a thin ceiling decorative sheet 5 that also functions as a diaphragm disposed parallel to a ceiling surface 1, the lower surface part 5c of the ceiling decorative sheet 5 becomes an interior decorative face, and an installation frame 3 mounted on the ceiling surface 1 has an opening 16 exposing downward the central portion of the interior decorative surface of the ceiling decorative sheet 5. A holding means for holding the outer circumferential part of the ceiling decorative sheet 5 is constituted of a pair of upper and lower magnets 7 and 8 mounted while facing repulsively to each other at respective positions facing in a vertical direction A, in the lower surface part 5c of the outer circumference of the ceiling decorative sheet 5 and an internal upper surface part 3b of the installation frame 3. Magnetic repulsive force between both the magnets 7 and 8 is utilized to lift the ceiling decorative sheet 5 up to a position in no contact with the installation frame 3. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a ceiling material having a speaker function.

  2. Description of the Related Art Conventionally, a speaker device that generates a sound by housing a diaphragm in a speaker housing and vibrating the diaphragm with a vibrator attached to the back surface of the diaphragm is known (for example, patents). Reference 1).

  In this type of speaker device, vibration is transmitted to the air when the diaphragm emits sound, but as a reaction, the speaker housing itself also vibrates. It is a problem. In particular, in a mounting structure in which the speaker device is directly attached to the ceiling surface, vibration is transmitted to the adjacent room or the surrounding space by solid propagation, and the noise caused by vibration or resonance is transmitted to the person in the surrounding space. May give pleasure. For this reason, there is a problem that the structure for mounting the speaker device becomes complicated, such as the necessity of interposing a vibration absorbing member between the speaker device and the ceiling surface.

JP 7-59193 A

  The present invention was invented in view of the above-described conventional problems, and the object of the present invention is to prevent the vibration of the ceiling decorative panel that also serves as the diaphragm from propagating to the building housing side, and to the surroundings. It is providing the ceiling material with a speaker function which can suppress solid propagation effectively.

  In order to solve the above-mentioned problem, the present invention has a vibration exciter 6 attached to the back surface of a thin-walled ceiling decorative plate 5 that also serves as a diaphragm arranged in parallel with the ceiling surface 1 serving as a mounting surface. The lower surface portion 5c of the ceiling decorative plate 5 serves as an interior decorative surface, and the mounting frame 3 attached to the ceiling surface 1 is provided with holding means for holding the outer peripheral portion of the ceiling decorative plate 5 and the ceiling decorative plate. 5 is a ceiling member with a speaker function provided with an opening 16 that exposes a central portion of the interior decorative surface 5 downward, wherein the holding means includes the lower surface portion 5c of the outer peripheral portion of the ceiling decorative plate 5 and the attachment. It consists of a pair of upper and lower magnets 7 and 8 attached to each position facing in the up-down direction A with the inner upper surface portion 3b of the frame 3 so as to face each other in a repelling direction. It is characterized in that the ceiling decorative plate 5 is floated to a position where it does not contact the mounting frame 3 by using the magnetic repulsive force between the two magnets 7 and 8.

  With this configuration, in addition to the original function as a ceiling building material, a speaker function can be added by the ceiling decorative plate 5 with the vibrator 6, and the pair of magnets 7 and 8 are repelled from each other. The ceiling decorative plate 5 can be floated inside the mounting frame 3 by a simple holding structure that is mounted in the facing direction, whereby vibration of the mounting frame 3 itself can be suppressed, and the vibration of the ceiling decorative plate 5 can be suppressed. Propagation to the building frame via 3 can be suppressed.

  Further, it is preferable that a cushioning member 15 having a cushioning property is interposed in the gap 9 in the lateral direction B between the outer peripheral end surface 5b of the ceiling decorative plate 5 and the inner peripheral surface 3a of the mounting frame 3 opposed thereto. In this case, since the buffer member 15 can prevent the wobbling operation in the lateral direction B of the ceiling decorative board 5 that vibrates in the floating state, the vibration suppressing effect of the mounting frame 3 itself can be enhanced.

  In addition, the pair of left and right second magnets 10 and 11 are repelled from each other at positions facing each other in the lateral direction B between the outer peripheral end surface 5b of the ceiling decorative plate 5 and the inner peripheral surface 3a of the mounting frame 3 opposed thereto. A pair of upper and lower third magnets 12 and 13 are mounted at respective positions facing the vertical direction A between the upper surface portion 5a of the ceiling decorative plate 5 and the inner lower surface portion 3c of the mounting frame 3 while being mounted facing each other. It is preferable to mount them facing each other so that they repel each other. In this case, the wobbling operation in the horizontal direction B or the vertical direction A of the ceiling decorative plate 5 that vibrates in the floating state is caused by the magnetic repulsive force of the second magnets 10 and 11, The magnetic repulsive forces of the three magnets 12 and 13 can be suppressed, respectively, and the stability of the ceiling decorative plate 5 is further increased, so that the contact and friction between the ceiling decorative plate 5 and the mounting frame 3 can be avoided more reliably.

  The present invention makes it possible to suppress vibration of the mounting frame itself by using the magnetic repulsive force between a pair of upper and lower magnets to float inside the mounting frame, and to suppress vibration propagation to the building frame. As a result, it is possible to effectively suppress unpleasant vibrations and solid sound propagation to neighboring rooms and surrounding spaces. Furthermore, it is not necessary to interpose an elastic member for absorbing vibration between the mounting frame and the building frame to which the mounting frame is mounted, and the mounting structure can be simplified.

It is side surface sectional drawing of the ceiling material with a speaker function of one Embodiment of this invention. It is a disassembled perspective view of the base frame part of a mounting frame same as the above, and a ceiling decorative board. It is explanatory drawing of other embodiment of this invention.

  Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.

  FIG. 1 is a side sectional view of a ceiling member 2 with a speaker function of the present embodiment. Although the ceiling material 2 of this example is used as a decorative ceiling that protrudes from the ceiling surface 1 and is attached thereto, the ceiling material 2 is not limited to this and may be configured to be embedded in a part of the ceiling surface 1.

  The mounting frame 3 of this example is formed in a flat hollow shape, and an opening 16 surrounded by a base frame portion 4 is provided on the lower surface, and this opening 16 serves as a sound emission port.

  A ceiling decorative plate 5 that also serves as a diaphragm is accommodated in the mounting frame 3. As shown in FIG. 2, the ceiling decorative board 5 is formed in a rectangular shape, and excitation for exciting the ceiling decorative board 5 according to an acoustic signal from a signal processing device (not shown) is provided at the center of the back surface. A vessel 6 is attached.

  A pair of upper and lower magnets 7 and 8 are attached to the outer peripheral portion of the lower surface portion 5c of the ceiling decorative plate 5 and the inner upper surface portion 3b of the base frame portion 4 of the mounting frame 3 so as to face each other in a repulsive direction. ing. In the example shown in FIG. 2, one magnet 7 is attached along the four sides of the lower surface portion 5 c of the ceiling decorative plate 5, and the inner upper surface of the base frame portion 4 positioned below the lower surface portion 5 c of the ceiling decorative plate 5. The other magnet 8 is attached along the part 3b. The pair of magnets 7 and 8 are formed of rectangular parallelepiped rod magnets, and are attached so that the surfaces facing each other are different magnetic poles, that is, N poles or S poles, and a magnetic repulsive force generated between the magnets 7 and 8. Is set to a size that allows the ceiling decorative plate 5 with the vibrator 6 to float up to a position where it does not contact the mounting frame 3.

  Thus, according to the ceiling material 2 configured as described above, in addition to the original function as a ceiling building material, a speaker function can be added, and the lower surface portion 5b of the ceiling decorative plate 5 that also serves as a diaphragm is an interior decorative surface. Therefore, the appearance as a decorative ceiling can be obtained.

  Here, when the ceiling decorative plate 5 is arranged inside the mounting frame 3, the ceiling decorative plate 5 is lifted by the magnetic repulsive force generated between the pair of upper and lower magnets 7, 8 and vibrates at a position where it does not contact the mounting frame 3. Therefore, the vibration of the mounting frame 3 itself can be suppressed, so that the vibration of the ceiling decorative plate 5 can be prevented from propagating to the ceiling surface 1 side through the mounting frame 3, The effect of suppressing unpleasant vibrations and solid sound propagation to neighboring rooms and surrounding spaces can be obtained. In addition, since it is not necessary to intervene vibration-absorbing rubber for suppressing vibration propagation between the mounting frame 3 and the ceiling surface 1, an effect of simplifying the mounting structure of the mounting frame 3 can be obtained.

  Further, in this example, a cushioning cushioning member 15 is provided in the gap 9 in the lateral direction B between the outer peripheral end surface 5b of the ceiling decorative plate 5 and the inner peripheral surface 3a of the mounting frame 3 opposed thereto. Here, an air bag is used as the buffer member 15. With this air cushion, it is possible to prevent the floating operation of the ceiling decorative plate 5 that vibrates in the floating state in the lateral direction B, and the outer peripheral end surface 5b of the ceiling decorative plate 5 does not come into contact friction with the mounting frame 3, thereby suppressing solid propagation. There is an advantage that can be further increased.

  FIG. 3 shows still another embodiment in which second magnets 10 and 11 and third magnets 12 and 13 are provided in addition to the pair of upper and lower magnets 7 and 8 (first magnets) of the embodiment of FIG. It is. In this example, the pair of left and right second magnets 10 and 11 are repelled from each other at positions facing each other in the lateral direction B between the outer peripheral end surface 5b of the ceiling decorative plate 5 and the inner peripheral surface 3a of the mounting frame 3 opposed thereto. They are mounted facing each other. Further, from the inner peripheral surface 3 a of the mounting frame 3, a convex rib 20 protrudes inward from a position above the ceiling decorative plate 5, and the upper surface portion 5 a of the ceiling decorative plate 5 and the inner lower surface portion of the convex rib 20. A pair of upper and lower third magnets 12 and 13 are attached to respective positions facing 3c in the vertical direction A so as to face each other in a repulsive direction. The second magnets 10 and 11 and the third magnets 12 and 13 are preferably composed of rectangular parallelepiped rod-like magnets like the first magnets 7 and 8. Thus, the wobbling action in the lateral direction B of the ceiling decorative board 5 that is levitated by the first magnets 7 and 8 can be suppressed by the magnetic repulsive force of the second magnets 10 and 11, and the wobbling action in the vertical direction A of the ceiling decorative board 5. Can be suppressed by the magnetic repulsive force of the third magnets 12 and 13, thereby further improving the stability of the ceiling decorative plate 5 in the vertical and horizontal directions, and the contact and friction between the ceiling decorative plate 5 and the mounting frame 3 can be reliably avoided. Thus, the vibration propagation to the ceiling surface 1 side can be further suppressed.

  In the said embodiment, although the permanent magnet was illustrated as the magnet 7,8; 10,11; 12,13, it is also possible to use an electromagnet.

DESCRIPTION OF SYMBOLS 1 Ceiling surface 2 Ceiling material 3 Mounting frame 3a Inner peripheral surface 3b Inner upper surface part 3c Inner lower surface part 5 Ceiling decorative plate 5a Upper surface part 5b Outer peripheral end surface 5c Lower surface part 6 Exciter 7,8 First magnet 9 Lateral gap 15 Buffer member 16 Opening A Vertical direction B Horizontal direction

Claims (3)

  A vibrator is attached to the back side of the thin ceiling decorative plate that doubles as a diaphragm arranged in parallel with the ceiling surface to be mounted, and the lower surface of the ceiling decorative plate is an interior decorative surface, A speaker function comprising a mounting frame attached to a ceiling surface and provided with holding means for holding the outer peripheral portion of the ceiling decorative plate and an opening that exposes a central portion of the interior decorative surface of the ceiling decorative plate downward The ceiling member is a ceiling member, and the holding means is opposed to each other in a reciprocal direction at respective positions facing the lower surface portion of the outer peripheral portion of the ceiling decorative plate and the inner upper surface portion of the mounting frame in the vertical direction. The ceiling decorative plate is floated to a position where it does not contact the mounting frame using a magnetic repulsive force between the magnets. Speaker function with a ceiling material.   2. The speaker function according to claim 1, wherein a cushioning member having cushioning properties is interposed in a lateral gap between the outer peripheral end surface of the ceiling decorative plate and the inner peripheral surface of the mounting frame facing the ceiling decorative plate. With ceiling material. A pair of left and right second magnets are mounted facing each other in a direction opposite to each other in a lateral direction between an outer peripheral end surface of the ceiling decorative plate and an inner peripheral surface of the mounting frame facing the ceiling decorative plate. A pair of upper and lower third magnets are attached to each of the upper face portion of the ceiling decorative plate and the inner lower face portion of the mounting frame facing each other in the vertical direction so as to face each other in a repulsive direction. Item 10. A ceiling material with a speaker function according to Item 1.

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