JP2006219932A - Ceiling suspended sound absorbing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ceiling suspended sound absorbing system easily constructed to the ceiling, having an accurate sound absorbing effect and constructing an atmosphere where announcement or the like for guide can be appropriately caught. <P>SOLUTION: The ceiling suspended system has a sound absorbing body installation rail 2 arranged at the lower face of the ceiling; locking members 3 having hinges 4 with springs attachable to and detachable from the sound absorbing body installation rail 2; hinges 9 provided at the lower parts of the locking members 3; protruding parts 8 connected to the hinges 9; and a sound absorbing body 6 integrated with the protruding parts 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a ceiling suspended sound absorbing system disposed on a ceiling.

  Conventionally, sound absorbing materials have been used on the walls and ceilings of buildings around noise sources to reduce reverberation.

As such a sound absorbing material, there are various types as shown below (see Patent Documents 1 to 3 and Non-Patent Documents 1 to 3 below).
JP 2003-122370 A JP 2003-122371 A JP 2003-150170 A Kazuhisa Ishikawa et al., “Development of sound absorbing material for low frequencies”, Showa Electric Wire Review, Vol. 53, no. 1 (2003), pp. 41-44 New product introduction, “Development of sound absorbing material for low frequency noise”, Showa Electric Wire Review, Vol. 52, no. 1 (2002), pp. 85 New product introduction, “Sound Absorbing Material for Low Frequency Noise (Broadband Type)”, Showa Electric Wire Review, Vol. 54, no. 1 (2004), pp. 65

  However, in concourses that are hallways in buildings such as railway stations and airports, announcements for guidance are drowned out by reverberation sounds such as passing sounds and noises of the railways, and are not well audible. Therefore, there is a need to construct a sound absorption system that can accommodate such spaces.

  Further, when a porous type sound absorbing material is used for the ceiling finishing material, there has been a problem that the deterioration over time is large.

  In view of the above circumstances, the present invention provides a ceiling-suspended sound absorption system that is easy to construct on the ceiling, has an accurate sound absorption effect, can improve the clarity of guidance broadcasts, and can reduce noise levels. The purpose is to do.

In order to achieve the above object, the present invention provides
[1] In a ceiling-suspended sound absorption system, a sound absorber installation rail disposed on the lower surface of the ceiling, a locking member having a spring-attached hinge that is detachable from the sound absorber installation rail, and a lower portion of the locking member It is characterized by comprising a hinge to be provided, a projecting portion connected to the hinge, and a sound absorber integrated with the projecting portion.

  [2] The ceiling-suspended sound absorbing system according to [1], wherein the spring-equipped hinge includes a knob part, a sandwiching part, and a coil spring wound around a shaft.

  [3] The ceiling-suspended sound absorbing system according to [1], wherein the sound absorbing body is a plate-shaped sound absorbing body.

  [4] The ceiling-suspended sound absorbing system according to [1], wherein the sound absorbing body is a cylindrical sound absorbing body.

  [5] The ceiling-suspended sound absorbing system according to [1], wherein the sound absorber mounting rails are arranged vertically and horizontally, and the sound absorbers are placed at desired positions of the vertical and horizontal sound absorber mounting rails according to noise sources. It is characterized by arranging.

  [6] The ceiling-suspended sound absorbing system according to [1], wherein an arrangement interval of the sound absorbing materials is adjusted.

  [7] The ceiling-suspended sound absorption system according to any one of [1] to [6], wherein the sound absorber is used as an advertising medium.

  [8] The ceiling-suspended sound absorbing material system according to [1], wherein the sound absorbing body is a lightweight body made of a porous sound absorbing member.

  [9] The ceiling-suspended sound absorbing material system according to [1], wherein the sound absorbing body has an acoustically reflective member in the center and porous sound absorbing members on both sides thereof.

  [10] The ceiling-suspended sound absorbing material system according to [1], wherein the sound absorbing body has a porous sound absorbing member inside, and a low frequency sound absorbing member in a frame shape outside thereof.

  [11] The ceiling-suspended sound absorbing system according to [1], wherein the sound absorbing body includes a porous sound absorbing member, an acoustic reflective member in the center thereof, and an outer side of the porous sound absorbing member. And a sound absorbing member for low frequency.

  According to the present invention, the following effects can be achieved.

  (1) The indoor sound absorption effect corresponding to the noise source can be easily improved.

  (2) Since the sound absorbing power in the room can be easily increased, it is possible to improve the clarity of the guidance broadcast and the like and reduce the noise level.

  (3) When a porous type sound absorbing material is used for the ceiling finishing material, there has been a problem that the deterioration over time is large. However, in the present invention, the sound absorbing body can be easily replaced, so that the maintainability is improved. .

  The ceiling-suspended sound absorbing material system of the present invention includes a sound absorber installation rail disposed on the lower surface of the ceiling, a locking member having a spring-attached hinge that is detachably attached to the sound absorber installation rail, and a lower portion of the locking member. A hinge provided on the hinge, a protrusion connected to the hinge, and a sound absorber integrated with the protrusion. Therefore, an indoor sound absorption effect corresponding to the noise source can be easily constructed.

  Hereinafter, embodiments of the present invention will be described in detail.

  FIG. 1 is a perspective view showing a configuration of a ceiling-suspended sound absorber showing an embodiment of the present invention, FIG. 2 is a front view thereof, and FIG. 3 is a cross-sectional view of a support portion of the ceiling-suspended sound absorber.

  In these drawings, 1 is a ceiling plate, 2 is a sound absorber installation rail as a fastener suspended from the ceiling plate 1, 3 is a locking member that is engaged with the sound absorber installation rail 2, and 4 This is a hinge with a spring of the locking member 3, and like the eyeball clip, a coil spring 4B is wound around the shaft 4A, and a nail 4D for opening the nipping part 4C is provided at the top and a nipping part 4C at the bottom. ing. 5 is a hanging portion integrated with the shaft 4A, 6 is a lightweight sound absorber (for example, a porous material or a breathable cloth), 7 is an upper surface portion of the sound absorber 6, and 8 is an upper surface portion 7 thereof. 9 is a hinge on which the projection 8 and the lower end of the hanging portion 5 are pivotally attached. The hinge 9 functions to reduce the external force when the sound absorber 6 receives wind pressure.

  Therefore, the sound absorber 6 can be easily placed at a predetermined position of the ceiling plate 1 by pushing the engaging member 3 upward from the rail 2 for mounting the sound absorber provided on the ceiling plate 1 and fitting it. . In that case, since the external force such as wind pressure applied to the sound absorber 6 is reduced by the hinge 9, the external force such as the wind pressure is hardly applied to the locking member 3 of the sound absorber 6, and the locking member 3 is stably stabilized. 6 can be supported.

  Further, when removing the sound absorber 6 from the sound absorber installation rail 2, if the knob 4 </ b> D is strongly picked up after the spring-loaded hinge 4 is slightly lifted, the pinching portion 4 </ b> C is detached from the sound absorber installation rail 2, The sound absorber 6 can be easily detached from the sound absorber installation rail 2.

  As described above, the sound absorber 6 can be easily attached to the sound absorber installation rail 2, and the sound absorber 6 can be easily detached from the sound absorber installation rail 2.

  Therefore, generally, the ceiling-suspended sound absorber of the present invention can easily perform the work on the ceiling, which is a high place where the attachment / detachment work is difficult.

  As a result, the sound absorber 6 can be disposed at a desired position of the sound absorber installation rail 2 in accordance with the position of the noise source, and the sound absorbing effect can be accurately achieved.

  FIG. 4 is a diagram showing an example in which a plurality of ceiling-suspended sound absorbers showing an embodiment of the present invention are used as an advertising medium.

  Advertisements such as letters and pictures can be applied to the plurality of ceiling-suspended sound absorbers 11 to 15 arranged horizontally.

  Thus, a plurality of ceiling-suspended sound absorbers can be effectively used.

  When the vicinity of the ceiling needs to be brightened, the sound absorbing body may be covered with a thin member that reflects light more.

  FIG. 5 is a sectional view showing the structure of a ceiling-suspended sound absorber showing an embodiment of the present invention.

  The ceiling-suspended sound absorber 21 shown in FIG. 5A is configured to be made of a porous material or a breathable cloth 22.

  In the ceiling-suspended sound absorber 31 shown in FIG. 5B, an acoustically reflective member 32 is disposed at the center, and a porous material and a breathable cloth 33 are disposed on both sides thereof.

  The ceiling-suspended sound absorber 41 shown in FIG. 5C has a low-frequency sound absorbing plate 43 (for example, a foam with a coating) in a frame shape with a porous material or a breathable cloth 42 disposed inside. Can be arranged. By adopting such a structure, particularly low frequency band noise can be effectively reduced.

  The ceiling-suspended sound absorber 51 shown in FIG. 5 (d) has an acoustically reflective plate 52 disposed in the center, porous fabrics 53 are provided on both sides thereof, and a frame-like low-profile on the outer surface. A frequency sound-absorbing plate 54 can be disposed.

  As described above, the sound absorbing body can be provided with a porous sound absorbing member, an acoustically reflective member can be provided at the center thereof, and a low frequency sound absorbing member can be provided outside the porous sound absorbing member.

  FIG. 6 is a view showing the structure of a ceiling-suspended sound absorber (columnar shape) according to another embodiment of the present invention.

  In this embodiment, a cylindrical sound absorber 51 is used instead of the plate-shaped sound absorber. In that case, it is desirable to consider using a light material so that the weight of the sound absorber 51 itself does not increase.

  FIG. 7 is a diagram showing an arrangement example of the ceiling-suspended sound absorber showing an embodiment of the present invention.

  In this figure, a sound absorber installation rail 62 as a fastener suspended from the ceiling board 61 is arranged vertically and horizontally, and is placed at a desired position of the rail 62 arranged vertically and horizontally corresponding to a noise source (not shown). A ceiling-suspended sound absorber 63 is disposed. The spacing between the ceiling-suspended sound absorbers 63 can also be set freely.

  FIG. 8 is a substitute photograph in place of a drawing in which the ceiling-suspended sound absorber of the present invention is placed on a trial basis, and FIG. 9 is a diagram showing the characteristics in the case of FIG. 8 and without the ceiling-suspended sound absorber. It is a figure which shows reverberation time (s) on a frequency (Hz) and a vertical axis | shaft, (circle) is a case without a sound-absorbing body, and ● is a case with a sound-absorbing body.

  As shown in FIG. 8, when the ceiling-suspended sound absorber (45 cm × 45 cm) is arranged vertically and horizontally on the ceiling of the room, the reverberation time (s) is reduced by about 1/3 compared to the case without the sound absorber. Is clear.

  As described above, according to the present invention, it is possible to easily increase the sound absorbing power in the room against the noise source by installing the ceiling-suspended sound absorbing body, so that the clarity of the guidance broadcast etc. is improved and the noise level is reduced. Is possible.

  In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.

  The ceiling-suspended sound absorbing material system of the present invention can be used as a ceiling-suspended sound absorbing material that can be constructed corresponding to a noise source.

It is a perspective view which shows the structure of the ceiling suspension sound-absorbing body which shows the Example of this invention. It is a front view of the ceiling suspended sound absorber showing an embodiment of the present invention. It is sectional drawing of the support part of the ceiling hanging sound absorber which shows the Example of this invention. It is a figure which shows the example which used the some ceiling-suspended sound absorber which shows the Example of this invention as an advertising medium. It is sectional drawing which shows the structure of the ceiling suspension sound-absorbing body which shows the Example of this invention. It is a figure which shows the structure of the ceiling suspension sound-absorbing body (column shape) which shows the other Example of this invention. It is a figure which shows the example of arrangement | positioning of the ceiling suspended sound absorber which shows the Example of this invention. It is a substitute photograph which replaces drawing which has arrange | positioned the ceiling suspension sound-absorbing body of this invention experimentally. It is a figure which shows the characteristic in the case of the case of FIG. 8, and the case where there is no ceiling suspension sound-absorbing body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,61 Ceiling board 2,62 Sound absorber installation rail 3 Locking member 4 Hinge with spring 4A Axis 4B Coil spring 4C Nipping part 4D Knob 5 Hanging part 6 Sound absorber 7 Upper surface part of sound absorber 8 Projection part of upper surface part 9 Hinge 11-15 A plurality of ceiling-suspended sound absorbers 21, 31, 41, 51, 63 Ceiling-suspended sound absorbers 22, 33, 42 Porous materials and breathable cloths 32 Acoustic reflective members 43, 54 Frame-shaped low frequency Sound absorbing plate 52 Acoustically reflective plate 53 Porous cloth with porous material 55 Cylindrical sound absorbing body

Claims (11)

(A) a sound absorber mounting rail disposed on the lower surface of the ceiling;
(B) a locking member having a spring-loaded hinge that is detachably attached to the sound absorber mounting rail;
(C) a hinge provided at a lower portion of the locking member;
(D) a protrusion that is connected to the hinge;
(E) A ceiling-suspended sound absorbing system comprising a sound absorbing body integrated with the protrusion.   The ceiling-suspended sound absorbing system according to claim 1, wherein the hinge with spring includes a knob portion, a sandwiching portion, and a coil spring wound around a shaft.   2. The ceiling-suspended sound absorbing system according to claim 1, wherein the sound absorber is a plate-shaped sound absorber.   The ceiling-suspended sound absorbing system according to claim 1, wherein the sound absorber is a cylindrical sound absorber.   The ceiling-mounted sound absorption system according to claim 1, wherein the sound absorber installation rails are arranged vertically and horizontally, and the sound absorbers are arranged at desired positions of the vertical and horizontal sound absorber installation rails corresponding to noise sources. A ceiling suspended sound absorbing system.   The ceiling-suspended sound absorbing system according to claim 1, wherein an interval between the sound absorbers is adjusted.   The ceiling-suspended sound absorbing system according to any one of claims 1 to 6, wherein the sound absorber is used as an advertising medium.   The ceiling-suspended sound absorbing system according to claim 1, wherein the sound absorber is a lightweight body made of a porous material.   The ceiling-suspended sound absorbing system according to claim 1, wherein the sound absorber has an acoustically reflective member in the center and porous sound absorbing members on both sides thereof.   The ceiling-suspended sound absorbing system according to claim 1, wherein the sound absorber has a porous sound absorbing member inside, and a low frequency sound absorbing member in a frame shape outside thereof.   2. The ceiling-suspended sound absorbing system according to claim 1, further comprising a porous sound absorbing member inside the sound absorbing body, an acoustically reflective member at the center thereof, and a low frequency outside of the porous sound absorbing member. A ceiling-suspended sound absorbing system having a sound absorbing member.