JP2014061088A - Furniture with top plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide furniture with a top plate being installed and transferred without requiring a large-scale construction, allowing a person located near the top plate to perform conversation or the like without being obstructed by masking sound, and capable of effectively inhibiting persons around to listen to voice of the conversation.SOLUTION: Furniture A with the top plate includes a furniture body having the top plate 1; and a sound masking speaker 4 provided under the top plate 1 with a string 33 as a buffer body interposed itself and the top plate 1 of the furniture body.

Description

  The present invention relates to furniture with a top board that can exhibit a sound masking effect.

  In an office building or the like, if sound or speech leaks between adjacent rooms or between distant desks, it can be felt noisy, or privacy or information security can be protected. In order to alleviate or eliminate this problem, a sound masking facility that applies a masking effect and a cocktail party effect has been devised.

  For example, the following Patent Document 1 discloses a system that masks the sound and speech of an adjacent room by emitting a masking sound such as pink noise and white noise from a speaker installed on the ceiling (or behind the ceiling) of the floor. Yes. However, a heavy speaker must be fixed directly to the ceiling, which takes time and effort.

  In addition, such sound masking may cause the sound masking sound to be applied to people who are talking through a desk or the like or those in the vicinity, which may interfere with the conversation. Furthermore, if it is desired to change the effective range of sound masking in response to the rearrangement of desks, it may be necessary to relocate the sound masking equipment.

JP 2008-233672-A

  This invention is made paying attention to such a situation, and it aims at providing the furniture with a top plate which can prevent or suppress all the problems mentioned above.

  In order to solve the above-described problems, in the present invention, a speaker that emits a masking sound such as pink noise or white noise is incorporated into the furniture with a top plate. That is, one of the furniture with a top plate according to the present invention is a sound provided under the top plate with a buffer body interposed between the furniture main body having the top plate and the top plate of the furniture main body. And a masking speaker.

  Here, the furniture with a top plate means the whole furniture in which the top plate is arranged at a position lower than the user's head, and is a concept including a desk, a table, and the like. The speaker is a concept including not only a normal type having a diaphragm itself but also a type that emits sound by vibrating an attachment object. Further, the shock absorber may be any material as long as it can prevent or suppress the vibration of the speaker from being transmitted to the top plate and functioning as the vibration plate. It is a concept that encompasses bushes and strings made of synthetic resin.

  With such a configuration, the masking sound emitted from the speaker is mainly diffused outward from the space below the top plate. However, the space above the top plate and in the vicinity of the periphery of the top plate is shielded by the top plate, and the masking sound from the speaker is difficult to reach. Therefore, a person located near the periphery of the top board can directly talk or perform a video conference without being surrounded by masking sounds. On the other hand, the masking sound radiated from the bottom of the top plate reaches the space away from the top plate, and the masking effect is exhibited.

  In addition, another one of the furniture with a top plate according to the present invention is a furniture main body having a top plate, a furniture main body having a top plate and a curtain plate arranged under the top plate, and a curtain plate of the furniture main body. And a sound masking speaker attached to the head. Even with such a configuration, the main effect of the present invention, that is, a person located near the periphery of the top board can directly talk or perform a video conference without being masked by the masking sound. On the other hand, it is possible to obtain an effect that the masking effect is exerted by the arrival of the masking sound radiated from under the top plate in the space apart from the top plate.

  In the former furniture with a top plate, when the furniture body is provided with a curtain plate arranged under the top plate, a speaker is preferably attached to the curtain plate.

  As a specific aspect of the curtain plate in the furniture with a top plate described above, one composed mainly of one flat plate material, one formed by intersecting a plurality of flat plate materials, or a cylinder And the like.

  When a speaker is attached to a curtain plate, it is desirable that the curtain plate is suspended and supported under the top plate via the buffer. In particular, when using a speaker of a type that allows the curtain to function as a diaphragm for generating sound, it is essential to provide a buffer at this location.

  According to the present invention, installation and relocation can be performed without involving a large-scale construction, and a person located near the top board can perform a conversation or the like without being interrupted by masking sound. It is possible to provide a furniture with a top plate that can effectively suppress the voice of the conversation or the like from being heard by the surrounding people.

The whole perspective view of the furniture with a top plate concerning one embodiment of the present invention. The side view of the furniture with a top plate concerning the embodiment. The bottom perspective view showing the important section of furniture with a top board concerning the embodiment. The sectional side view which shows the principal part of the furniture with a top plate which concerns on the same embodiment. Schematic which shows the usage condition of the furniture with a top plate which concerns on the embodiment. The top view of the furniture with a top plate which concerns on other embodiment of this invention. The top view of the furniture with a top plate which concerns on other embodiment of this invention. The top view of the furniture with a top plate which concerns on other embodiment of this invention.

  An embodiment of the present invention will be described with reference to the drawings. In FIG. 1, the whole outline | summary of the furniture A with a top plate of this embodiment is shown. The furniture with a top plate of the present embodiment includes a top plate 1, a plurality of legs 2 supporting the four corners of the top plate 1, a curtain plate 3 suspended and supported on the lower surface 1a of the top plate 1, And a speaker 4 attached to the curtain 3.

  As shown in FIGS. 1 to 3, the top plate 1 has, for example, a rectangular shape in plan view, and has a wiring insertion window 11 for taking in and out the wiring at the center. A wiring receiver 12 is provided below the wiring insertion window 11. The wiring receiver 12 has a cage shape having a large number of openings, and is fixed to the lower surface of the top plate 1 using screws 13. A desktop panel 14 that divides the top plate surface into two areas of use is attached to the top surface of the top plate 1.

  As shown in FIGS. 1 to 3, the leg body 2 includes a leg support 22 having a caster 21 at the lower end, and a top board receiving portion that is fixed to the upper end of the leg support 22 and supports the lower surface 1 a of the top board 1. 23, and the top plate receiving portion 23 is fixed to the top plate 1 using screws (not shown).

  The curtain plate 3 is mainly composed of a single flat plate material. Specifically, as shown in FIGS. 1 to 3, the mounting slit 31 is formed in the vicinity of the upper edge of the synthetic resin plate having translucency, which is a flat plate material, and the air permeability and design are provided in the vicinity of the lower edge. The decorative slit 32 for improving the property is formed. The curtain plate 3 is suspended and supported by a wiring receiver 12 provided on the lower surface 1a of the top plate 1 via a strip 33 made of synthetic resin, which is a band that is a buffer inserted through the mounting slit 31. Yes. The curtain plate 3 in this embodiment is disposed at a position that defines two lower limb spaces corresponding to the two use areas partitioned by the desktop panel 14. The curtain plate 3, the top plate 1, and the leg 2 constitute a furniture body. The speaker 4 is attached to one surface of the curtain plate 3.

  The speaker 4 is, for example, a type that generates sound using the curtain 3 as a vibrating body. As shown in FIG. 4, the speaker 4 is attached to the frame 5 and has an annular shape around the axis. A magnetic circuit 6 having a magnetic gap 65 formed, a drive body 7 provided in association with the magnetic gap 65 of the magnetic circuit 6 and capable of moving back and forth along the axial direction, and an operation of moving the drive body 7 back and forth. And a damper 8 supported by the frame 5 in an allowed state.

  As shown in FIG. 4, the frame 5 has a cylindrical shape and includes a flange 51 on the outer periphery of one end. The magnetic circuit 6 is mounted on the inner periphery of the frame 5, and the outer peripheral edge 81 of the damper 8 is attached to the lower surface 52 of the flange 51. A terminal mounting portion 53 is provided in a part of the flange portion 51, and a pair of terminals 55 are provided at both ends of the insulating base 54 attached to the terminal mounting portion 53. The frame 5 is integrally made of synthetic resin.

  As shown in FIG. 4, the magnetic circuit 6 includes a first permanent magnet 61 having a disk shape and a yoke 62 having a bowl shape attached to one end surface forming one pole of the first permanent magnet 61. A disk-like plate 63 attached to the other end surface forming the other pole of the first permanent magnet 61, and a disk-like plate attached to the opposite side of the plate 63 to the first permanent magnet 61. The annular magnetic gap 65 is formed between the inner peripheral surface of the yoke 62 and the outer peripheral surface of the plate 63. The yoke 62 and the plate 63 are made of a magnetic material. In addition, when it is set as the structure which clamped the plate 63 which is an iron plate between the 1st, 2nd permanent magnets 61 and 64 in this way, the effect | action which strengthens a magnetic field is acquired.

  As shown in FIG. 4, the driving body 7 includes a coil bobbin 71 having a cylindrical shape and a voice coil 72 wound around the coil bobbin 71, and the voice coil 72 is positioned in the magnetic gap 65. I am letting. Both ends of the voice coil 72 are electrically connected to the terminal 55 via lead wires 74, respectively. At the outer end of the coil bobbin 71, a hook-shaped attachment portion 73 is formed, and this attachment portion 73 is attached to the curtain plate 3 that functions as the vibrating body.

  As shown in FIG. 4, the damper 8 has an annular shape formed of a plate material having a ripple shape and is elastically deformable, and the inner peripheral edge 82 is easily displaced in the thickness direction with respect to the outer peripheral edge 81. Configured to get. The coil bobbin 71 of the driving body 7 is supported by the inner peripheral edge 82 of the damper 8.

  The speaker 4 is connected to a sound reproducing device for reproducing the sound S output through the speaker 4. The sound masking sound S signal supplied to the speaker 4 is pink noise whose power tends to be inversely proportional to the frequency at least in the audible range, and the power tends to be substantially uniform regardless of the frequency at least in the audible range. Examples include white noise. However, environmental noises such as bird roaring, background music, etc. may be superimposed on these noises.

  Incidentally, the magnitude of the masking sound S emitted from the speaker 4 may be feedback-controlled. For example, a sensor (such as a microphone) (not shown) for measuring the sound field is installed under the top board 1 and applied from the sound reproducing device to the speaker 4 according to the sound field measured through the sensor. The signal intensity of the masking sound S is adjusted to increase or decrease.

  With this configuration, when the sound reproducing device gives sound signals for sound masking to both terminals 55 of the speaker 4, the entire screen 3 vibrates and the masking sound for sound masking is generated. S is generated. As schematically shown in FIG. 5, the masking sound S is emitted mainly in a direction perpendicular to both surfaces of the curtain plate 3, and is gradually diffused to the surroundings. On the other hand, the area above and near the top plate 1 is a space where the masking sound S does not reach so much due to the emission direction of the masking sound S and the sound insulation effect by the top plate 1. Therefore, people B sitting toward the top board 1 can talk with each other without being obstructed by the masking sound S. The same effect can also be obtained when a person B sitting toward the top board 1 performs a video conference or the like via a personal computer (not shown) placed on the top board 1. Moreover, since the masking effect by the masking sound S is caused in the space apart from the top plate 1 of the furniture A with the top plate according to this embodiment, for example, in the vicinity of the hallway C or other furniture D. Persons E and F are less likely to hear voices caused by conversation or the like occurring near the top of the top board 1.

  Therefore, by using this furniture A with a top board, it becomes possible to carry out a clear direct conversation, a conversation through a video conference system, etc. in a state where it is difficult for sound to be transmitted to the surroundings. Moreover, since the sound masking speaker 4 is mounted on the furniture A with a top board, construction on a building such as a ceiling is not required, and installation can be performed easily. Moreover, since the area where the sound masking effect is exhibited can be changed simply by moving the furniture A with the top plate, the relocation work of the speakers arranged on the ceiling or the like is not required. If it is furniture A with a top plate which has a caster like this embodiment, especially it can move easily and it can move freely and can produce various masking effects.

  The present invention is not limited to the embodiment described in detail above.

  That is, in the above-described embodiment, a case has been described in which a string that is a buffer is interposed between a curtain plate that is an attachment target and a top plate, and a speaker that uses the curtain plate as a vibrating body is used. Alternatively, the curtain plate may be fixed to the top plate without using a cushioning material, and a normal type speaker having an original diaphragm (such as cone paper) may be attached to the curtain plate. In this case, it is preferable to interpose a buffer between the curtain and the speaker. Further, the number of speakers is not limited to one and may be plural.

  Further, the top plate is not limited to the desk type used by two people as in the above embodiment, but the table type used by one person or the table type used by three or more people. Etc. The planar shape of the top plate may be a polygon other than a rectangle, a circle, an oval, an ellipse, or the like.

  Further, the object to be attached to the speaker is not limited to the curtain plate. Of course, even when the speaker is attached to the curtain plate, the form and the mounting position of the curtain plate can be variously modified. Examples of the curtain plate other than the above-described embodiment include a curtain plate formed by crossing a plurality of flat plate materials, a cylindrical plate, and the like.

  For example, the furniture with a top plate X schematically shown in FIG. 6 is a flat plate material positioned under the desk-type rectangular top plate X1 used by one person and on the opposite side of the top plate X1. Is a plate-like curtain plate X3 that is suspended and supported via a buffer such as a string (not shown), and a speaker X4 is attached to the curtain plate X3. Such a configuration is suitable for a task in which a user has a conversation toward a personal computer placed on a top board, a screen of a television, or the like. The furniture with a top plate Y schematically shown in FIG. 7 includes a top plate Y1 that forms a table-type square that can be used by three or more people from the periphery. The curtain plate Y3 arranged under the top plate Y1 is configured by orthogonally crossing four flat plate materials Y31 suspended and supported on the top plate Y1 via a buffer such as a string (not shown). . In this case, as shown in the figure, the speaker Y4 is preferably provided on each of the planar materials Y31 having different normal directions. The furniture Z with a top plate schematically shown in FIG. 8 is provided with a table top circular Z1 that can be used by three or more people from the periphery. The top plate Z1 has a wiring insertion window Z11 in the center. A wiring receiver Z12 is provided below the wiring insertion window Z11. A curtain plate Z3 is suspended and supported by the wiring receiver Z12 through a buffer such as a string (not shown). That is, the curtain plate Z3 is disposed under the top plate Z1. This curtain plate Z3 is cylindrical. In this example, a speaker Z4 is provided at one place on the curtain plate Z3.

  Other specific configurations of each part can be variously modified without departing from the spirit of the present invention.

  The present invention can be applied to furniture with a top plate such as a desk or a table used in an office.

A ... Furniture with top plate 1 ... Top plate 3 ... Curtain plate 33 ... Buffer (string)
4 ... Speaker

Claims (7)

A furniture body having a top plate, and a sound masking speaker provided under the top plate with a buffer interposed between the top plate of the furniture body, Furniture with a baking sheet. A furniture with a top board, comprising: a furniture body having a top board and a curtain plate arranged under the top board; and a sound masking speaker attached to the curtain board of the furniture body. The furniture with a top panel according to claim 1, wherein the furniture body includes a curtain plate disposed under the top panel, and the speaker is attached to the curtain panel. The furniture with a top plate according to claim 2 or 3, wherein the curtain is mainly composed of a single flat plate material. The furniture with a top plate according to claim 2 or 3, wherein the curtain plate is configured by intersecting a plurality of flat plate materials. The furniture with a top plate according to claim 2 or 3, wherein the curtain plate is cylindrical. The furniture with a top plate according to claim 2, 3, 4, 5, or 6, wherein the curtain plate is suspended and supported under the top plate via the buffer body.

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