JP2011102467A - Soundproof door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a soundproof door, which can perform ventilation while securing high sound insulating performance. <P>SOLUTION: A surface plate 5 has a surface-side opening 21, a back plate 7 has a reverse-side opening 23, and the surface-side opening 21 and the reverse-side opening 23 communicate with each other through a hollow portion 15 while being vertically separated to some degree. An acoustic material 41 and an acoustic material 43 are adhered to the inside surface of the surface plate 5 and the inside surface of the back plate 7 respectively, and an acoustic material 45 is provided between each of a top plate 9, a bottom plate 11 and lateral side plates and the hollow portion 15. Air enters from the outside of a room 71 through the surface-side opening 21, flows downwardly within the hollow portion 15, and runs into the room 71 through the reverse-side opening 23. Sound which has entered to the hollow portion 15 is absorbed by the acoustic materials 41, 43, and 45. Since the surface-side opening 21 and the reverse-side opening 23 are disposed with a vertical space to some degree, the sound which has entered to the hollow portion 15 through the reverse-side opening 23 is almost absorbed by the acoustic material 45 and silenced before it reaches the surface-side opening 21. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a soundproof door, and more particularly to a soundproof door provided with a vent.

As described in Patent Document 1, this type of soundproof door is such that the gap between the door and the opening is filled with packing, and in addition to exhibiting soundproof performance, there is almost no ventilation around the door. It will be a thing.
For example, in a karaoke box, a plurality of relatively small rooms are created in a building, karaoke facilities are provided in each room, and soundproof doors are provided at the entrances (openings) of each room. In such a karaoke box, the soundproof door is closed and the window is also closed to suppress the leakage of sound to the outside as much as possible. Therefore, ventilation cannot be performed around the door or through the window. For this reason, an exhaust port provided with a ventilation fan on the wall or ceiling of each room and an intake port different from this are provided.

JP 2005-299289 A

However, if an exhaust port provided with a ventilation fan for each room and an intake port different from this are provided, there is a problem that the construction cost increases. In particular, in a karaoke box, the number of rooms per store is large, and the cost when each room has both an exhaust port and an intake port becomes considerable.
The present invention has been made by paying attention to the above-mentioned conventional problems, and an object thereof is to provide a soundproof door having high soundproofing performance and allowing ventilation.

  The present invention has been made to solve the above-mentioned problems, and the invention of claim 1 communicates a door main body, a hollow portion formed in the door main body, and the hollow portion and the surface of the door main body. A soundproof door comprising a front side opening, a back side opening for communicating the hollow portion and the back surface of the door body, and a sound absorbing material provided on a surface surrounding the hollow portion.

  According to a second aspect of the present invention, in the soundproof door according to the first aspect, one of the front side opening and the rear side opening is provided above the center in the height direction of the door body, and the other is from the center in the height direction of the door body. A soundproof door is provided on the lower side.

  According to a third aspect of the present invention, in the soundproof door according to the first or second aspect, the front opening and the rear opening have a plurality of blades spaced apart from each other and arranged in an inclined posture facing the same direction. It is a characteristic soundproof door.

  According to a fourth aspect of the present invention, there is provided the soundproof door according to any one of the first to third aspects, wherein each of the front and back plates of the door body is formed opposite to each other and opposed to each other, and further, the opening for the viewing window connected to the hollow portion A transparent plate attached in a state of closing the window opening, a frame surrounding the space between the transparent plates facing each other, and a moisture absorption device that is provided in the frame and absorbs moisture in the space between the transparent plates It is a soundproof door characterized by having an agent.

  In the soundproof door of the present invention, the front side opening and the back side opening communicate with each other via a hollow portion, so that ventilation is possible between the front side and the back side of the door body, and the function as an intake / exhaust port can be exhibited. Since it is absorbed by the material, sufficient soundproof performance can be exhibited. Therefore, as a result of the soundproof door functioning as either an intake or exhaust port, it is only necessary to provide either the exhaust port or the intake port on the wall or ceiling of each room, greatly reducing construction costs. Is possible.

It is a perspective view of the soundproof door which concerns on embodiment of this invention. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is a figure which shows the state with which the soundproof door 1 of FIG. 1 was equipped in the room of the karaoke box.

A soundproof door 1 according to an embodiment of the present invention will be described with reference to the drawings.
Reference numeral 3 denotes a door body. The door body 3 includes a front plate 5, a back plate 7, a top plate 9, a bottom plate 11, and left and right side plates (not shown). Is formed.
A front side opening 21 communicating with the hollow portion 15 is formed in the front plate 5, and the front side opening 21 is provided above the center of the door body 3 in the height direction. Further, a back side opening 23 communicating with the hollow portion 15 is formed in the back plate 7, and the back side opening 23 is provided below the center of the door body 3 in the height direction. Accordingly, the front side opening 21 and the back side opening 23 communicate with each other through the hollow portion 15 in a state of being separated to some extent in the vertical direction.

  A plurality of slats 31 are supported in the front opening 21, and these slats 31 are arranged at an interval in the vertical direction in an inclined posture in which the front end portion is directed obliquely downward. A plurality of slats 33 are supported in the back side opening 23, and these slats 33 are arranged at intervals in the vertical direction in an inclined posture in which the front end portion of the back side faces obliquely downward. These blades 31 and 33 prevent the front side opening 21 and the back side opening 23 from being completely exposed, so that the front and back surfaces of the door body 3 are in a good-looking state.

Reference numerals 41 and 43 denote mat-like sound absorbing materials made of paper raw materials and the like, and the sound absorbing materials 41 and 43 have high sound absorbing performance. The sound absorbing material 41 is attached to the inner surface of the front plate 5, and the sound absorbing material 43 is attached to the inner surface of the back plate 7.
Reference numeral 45 denotes a sound absorbing material made of rock wool, and the sound absorbing material 45 is provided between the top plate 9, the bottom plate 11, the left and right side plates, and the hollow portion 15.

  Further, openings 51 and 53 for the viewing window 50 facing each other are formed at substantially center portions of the front plate 5 and the back plate 7, and these openings 51 and 53 are connected to the hollow portion 15. In addition, glass transparent plates 55 and 57 are fitted in the openings 51 and 53 so as to close the openings 51 and 53, respectively. The transparent plate 55 and the transparent plate 57 have different thickness dimensions.

  As shown in FIG. 3, a punching metal partition plate 59 surrounding the space 58 between the transparent plates 55 and 57 is fixed to the edges of the transparent plates 55 and 57. A mat-like sound absorbing material 60 is provided on the rear surface (the surface opposite to the space between the transparent plates 55 and 57) of the partition plate 59. The sound absorbing material 60 has a notch 62, and a hygroscopic agent (drying agent) 64 is accommodated in the notch 62. Further, the outer surface of the sound absorbing material 60 (the surface opposite to the partition plate 59) is covered with a plate material 66. That is, the space between the transparent plates 55 and 57 is surrounded by a frame-shaped body 68 including the partition plate 59, the sound absorbing material 60 and the plate material 66.

In addition, the door body 3 is provided with a vibration isolating material made of an anti-vibration rubber (not shown), and by absorbing sound (vibration) by this vibration isolating material and converting it into thermal energy, high sound insulation performance is exhibited. Can be done.
A push plate 61 is provided on the front plate 5, and a handle (not shown) is provided on the back plate 7.
In addition, a member to be attracted (not shown) made of a magnetic material is attached to a portion of the soundproof door 1 corresponding to a packing 81 described later.

FIG. 5 shows a state in which the soundproof door 1 is provided in the room 71 of the karaoke box.
Reference numeral 73 denotes a wall, and an opening 75 for entrance / exit is formed in the wall 73, and a frame 77 is provided in the opening 75. A door stopper 79 is formed on the frame 77, and a packing 81 is provided on the door stopper 79. The packing 81 is made of a soft synthetic resin and is formed in a tube shape. A magnet (not shown) is accommodated in the packing 81.
The soundproof door 1 is attached to the frame 77 so as to be freely opened and closed. As described above, the front side opening 21 and the back side opening 23 communicate with each other through the hollow portion 15, so that the front side and the back side of the door body 3 can be ventilated even when the soundproof door 1 is closed.
An exhaust port 85 is formed in the wall 73, and the exhaust port 85 is provided with a ventilation fan 87. An exhaust pipe 89 is connected to the exhaust port 85.

Next, the usage method of the soundproof door 1 is demonstrated.
The soundproof door 1 is closed in order to suppress the leakage of the sound outside the room 71 of the karaoke box as much as possible. As described above, the door stop portion 79 is provided with the packing 81 in which a magnet is accommodated, and a member to be attracted is attached to a portion corresponding to the packing 81 of the soundproof door 1. The member is attracted by the magnet, and the edge of the soundproof door 1 and the packing 81 are brought into close contact with each other. Thereby, the space between the edge of the soundproof door 1 and the packing 81 is almost completely closed, and the leakage of sound from the space between the edge of the soundproof door 1 and the packing 81 can be prevented.
When the ventilation fan 87 is operated for ventilation, air flows from the outside of the room 71 through the front opening 21 downward in the hollow portion 15, and flows into the room 71 through the back opening 23. The air in the room 71 is sucked toward the exhaust port 85 and is discharged out of the room 71 through the exhaust pipe 89.

Further, the sound generated in the room 71 travels toward the wall 73, the soundproof door 1, and the like. As described above, since the packing 81 is in close contact with the edge of the soundproof door 1, sound does not leak out of the room 71 from between the edge of the soundproof door 1 and the opening 75.
A part of the sound enters the hollow portion 15 from the back side opening 23 as indicated by an imaginary line arrow in FIG. However, as described above, the sound absorbing material 41 is attached to the inner surface of the front plate 5 and the sound absorbing material 43 is attached to the inner surface of the back plate 7, and the sound absorbing material 45 is attached to the top plate 9, the bottom plate 11, and Since it is provided between the side plate and the hollow portion 15, the sound that has entered the hollow portion 15 is absorbed by the sound absorbing materials 41, 43, and 45. Moreover, since the front side opening 21 and the back side opening 23 are spaced apart to some extent in the vertical direction, the sound that has entered the hollow portion 15 from the back side opening 23 is absorbed by the sound absorbing material 45 before reaching the front side opening 21. Disappears. Therefore, no sound leaks out of the room 71 from the front opening 21.

  Moreover, the soundproof door 1 can exhibit higher soundproofing performance than a conventional soundproof door having no hollow portion. That is, sound (vibration) generated on either the front plate 5 side or the back plate 7 side of the soundproof door 1 is diffusely reflected in the hollow portion 15 and is attenuated by the sound absorbing material 41, the sound absorbing material 43, and the sound absorbing material 45. And it is absorbed and disappears. Since such a soundproof door 1 has a function of diffusely reflecting sound in the hollow portion 15, it is possible to exhibit higher soundproofing performance than a conventional soundproof door having no hollow portion.

  Thus, since the soundproof door 1 can exhibit the function as an inlet, it is not necessary to provide an inlet different from the outlet 85 for each room. Therefore, the construction cost can be kept low. In addition, since the sound is absorbed by the sound absorbing materials 41, 43, and 45, sufficient soundproofing performance can be exhibited.

Moreover, since the soundproof door 1 is provided with the viewing window 50, the state of the room 71 of the karaoke box can be seen from the viewing window 50.
Since the frame body 68 is provided with a moisture absorbent (drying agent) 64, even if moisture enters the space 58 between the transparent plates 55 and 57 due to the moisture absorbent (drying agent) 64, the moisture is punched. It is sucked into the hygroscopic agent through a hole in the metal partition plate 59. Thereby, it can prevent that the transparent plates 55 and 57 cloud.
The thickness of the transparent plate 55 is 5 mm, and the thickness of the transparent plate 57 is 3 mm. Since the thickness is different, resonance can be prevented.

The embodiment of the present invention has been described in detail above. However, the specific configuration is not limited to this embodiment, and the present invention can be changed even if there is a design change without departing from the gist of the present invention. included.
In the above embodiment, the sound absorbing materials 41 and 43 are made of paper raw material and the sound absorbing material 45 is made of rock wool, but the sound absorbing material may be made of other materials such as glass wool.
In the above embodiment, the front side opening 21 is provided above the center of the door body 3 in the height direction, and the back side opening 23 is provided below the center of the door body 3 in the height direction. You may comprise the positional relationship of the back side opening 23 upside down.

In the above-described embodiment, the soundproof door 1 has a function as an intake port. However, for example, the exhaust port 85 may be used as an intake port, and the soundproof door 1 may have a function as an exhaust port.
In the above embodiment, the soundproof door 1 is provided in a karaoke box, but the soundproof door 1 may be provided in a music studio or the like.
In the above embodiment, the openings 51 and 53, the transparent plates 55 and 57, and the partition plate 59 are provided in the door main body 3. However, the opening 51 and the like may not be provided in the door main body 3.

  The present invention can be used in the manufacturing industry for doors and other joinery.

DESCRIPTION OF SYMBOLS 1 ... Soundproof door 3 ... Door main body 5 ... Front plate 7 ... Back plate 9 ... Top plate 11 ... Bottom plate 15 ... Hollow part 21 ... Front side opening 23 ... Back side opening 31, 33 ... Blades 41, 43 ... Sound absorption material 45 ... Sound absorption Material 51, 53 ... Opening 55, 57 ... Transparent plate 59 ... Partition plate 61 ... Push plate 71 ... Room 73 ... Wall 75 ... Opening 77 ... Frame 79 ... Door-to-door portion 81 ... Packing 85 ... Exhaust vent 87 ... Ventilation fan 89 ... Exhaust pipe 58 ... Space 60 between transparent plates ... Mat-shaped sound absorbing material 62 ... (Mat-shaped sound absorbing material) notch 64 ... Hygroscopic agent (drying agent) 66 ... Plate material 68 ... Frame-shaped body

Claims (4)

  A door main body, a hollow portion formed in the door main body, a front side opening for communicating the hollow portion and the surface of the door main body, a back side opening for communicating the hollow portion and the back surface of the door main body, and the hollow portion A soundproof door comprising a sound absorbing material provided on a surface surrounding the door.   In the soundproof door according to claim 1, one of the front side opening and the back side opening is provided above the center in the height direction of the door body, and the other is provided below the center in the height direction of the door body. Soundproof door characterized by that.   The soundproof door according to claim 1 or 2, wherein a plurality of slats are arranged in the front side opening and the back side opening in an inclined posture that are spaced apart from each other and facing the same direction.   The soundproof door according to claim 1, wherein an opening for a viewing window formed on a front plate and a back plate of the door body and opposed to each other and connected to a hollow portion is closed, and the opening for the window is closed. A transparent plate attached to each of the transparent plates, a frame surrounding the space between the transparent plates facing each other, and a hygroscopic agent provided in the frame to absorb moisture in the space between the transparent plates. Soundproof door.

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