JP3325246B2 - Sound insulation door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulating door which suppresses sound transmission. The present invention is, for example, a toilet room,
Audio room, bedroom, guest room, living room, business room, study room,
For homes where sound insulation is required, such as computer rooms,
Applicable to each door for business use.

[0002]

2. Description of the Related Art In recent years, there has been a strong demand for sound insulation in a room such as a toilet. For this reason, if the airtightness of the sound-insulating door is increased in order to reduce the propagation of sound, a problem arises in that the air permeability communicating between the inside and outside of the door is reduced. In this case, it becomes difficult to close the door when the door is closed. Further, when a ventilation fan is provided in the room, if the ventilation fan in the room is operated with the door closed, the room tends to be negative pressure.
In this case, when the door is opened, there is a problem that the door is difficult to open due to the negative pressure.

[0003] In recent years, a barrier-free structure has been adopted in a structure such as a house so as to eliminate a step on the floor surface and smooth the floor surface so as not to obstruct the elderly or the like. When the barrier-free structure is adopted, a gap tends to be generated between the floor surface and the door bottom surface. If the gap formed between the floor surface and the door bottom surface is large, the sound insulation of the door is reduced, so that measures to eliminate or reduce the gap are taken. However, when such a measure is adopted, although the sound insulation is improved, a problem arises in that the air permeability communicating between the inside and outside of the door is reduced.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide communication between the inside and outside of a door by utilizing a gap below a door bottom surface while ensuring sound insulation. It is an object of the present invention to provide a sound insulation door capable of improving air permeability.

[0005]

According to a first aspect of the present invention, there is provided a sound insulating door including a door bottom surface facing a floor surface, and a mounting component provided in an intermediate region of the door bottom surface in a door thickness direction. A sound insulating door having a sound insulating property attached with a gap formed between a bottom surface and a floor surface, wherein the mounting component is a door.
Moves downwards due to the closure of
A sound-insulating member that suppresses sound transmission through the space,
The sound door includes a first opening that opens on the door surface, a second opening that opens on the door bottom surface, and a communication path that connects the inside and outside of the door by connecting the first opening and the second opening. And a communication path portion of the communication path along the door surface direction is deviated from a center line of the sound insulating door in the door thickness direction in a cross section along the door thickness direction. So as to avoid the sound insulation member
It is characterized by being formed in .

A sound-insulating door according to a second aspect of the present invention includes a door bottom surface facing the floor surface, and a mounting component provided in an intermediate region of the door bottom surface in the door thickness direction. A sound insulating door having a sound insulating property attached with a gap formed between the door and the mounting component, with the closing of the door
Move downward to contact or approach the floor surface
The sound insulation door has a sound insulation member that suppresses sound transmission, and the sound insulation door connects a first opening that opens on a door surface, a second opening that opens on a bottom surface of the door, and the first opening and the second opening. And the first opening and the second opening are elongated and extend in a slit shape along the door width direction, and the communication passage is provided in the door width direction. And extending so as to avoid the sound insulation member .

According to the sound insulating door of the first and second aspects of the present invention, the first opening that opens on the door surface, the second opening that opens on the door bottom surface, and the communication passage that communicates the first opening and the second opening. By utilizing the gap between the door bottom surface and the floor surface, air permeability communicating between the inside and outside of the door is ensured.

Further, according to the sound insulation door according to the first invention and the second invention, the first opening is opened on the door surface,
The second opening is open at a door bottom surface facing the floor surface. Therefore, when the room is closed by the sound insulation door, an outsider can be suppressed from seeing through the inside of the room through the communication passage.

[0009] A mounting component is provided in an intermediate area in the door thickness direction on the door bottom surface of the sound insulating door. In this case, the mounted components may interfere with the communication path, and the width of the communication path may be reduced, or the communication path may not be formed. In this regard, according to the sound insulating door according to the first and second aspects of the present invention, the communication passage portion along the door surface in the communication passage is:
In the cross section along the door thickness direction, the sound insulation door is arranged so as to be deviated from the center line of the door in the door thickness direction. Therefore, it is possible to prevent the passage width of the communication passage from being reduced or the communication passage from being unable to be formed due to the influence of the mounted component.

According to the sound-insulating door of the second aspect, the first opening and the second opening extend in a slit shape along the door width direction, and the communication passage also extends along the door width direction. As a result, the ventilation cross section increases.

[0011]

According to the sound-insulating door according to the first and second aspects of the present invention, the door bottom surface facing the floor surface and the mounting component provided in the middle of the door bottom surface in the door thickness direction are provided. that features.

According to the sound insulation doors of the first and second inventions, the sound insulation door is mounted with a gap formed between the door bottom surface and the floor surface. The gap is preferably small in consideration of the sound insulation, but if the gap is small, the smoothness of the operation of the sound insulation door is impaired. Therefore, it is preferable to determine the width of the gap in consideration of such circumstances.

According to the sound insulating doors of the first and second aspects of the present invention, it is preferable that a material having a sound absorbing or sound insulating property is incorporated. Thereby, propagation of sound through the sound insulation door is suppressed. Examples of the material having such a sound absorbing or sound insulating property include a foam lump such as urethane foam, an aggregate of foam beads, an aggregate of fibers such as glass fiber, and a cloth.

According to the sound-insulating doors of the first and second aspects, the first opening opens on the door surface. The first opening is preferably formed near the lower part in the height direction of the sound insulating door, but may be formed near the center in the height direction of the sound insulating door, or in some cases, or the height of the sound insulating door. It may be formed near the upper part in the direction.

[0015] The second opening is opened at the door bottom surface facing the floor surface. The communication path connects the first opening and the second opening. First
The cross-sectional area and the opening shape of the opening and the second opening can be appropriately selected in consideration of factors such as design properties and the strength of the sound insulation door. The communication passage may have an inverted L-shape or an inverted J-shape in a cross section along the thickness direction of the door.

According to a preferred embodiment of the sound insulation door according to the first and second inventions, the length of the communication passage is set to be longer than the thickness of the sound insulation door. In this case,
The sound propagation distance can be increased, and sound attenuation can be ensured by increasing the propagation distance. For example, (length of communication passage / thickness of door) = 1.1-40 can be set, although it differs depending on the type and size of the sound insulation door. However, it is not limited to this.

It is preferable that at least a part of the communication path is covered with a material having a sound absorbing or sound insulating property. This further restricts sound propagation. Examples of the material having a sound absorbing or sound insulating property include a foamed mass such as a urethane foam layer, an aggregate of foamed beads, an aggregate of fibers such as glass fibers, and a cloth.

According to a preferred embodiment of the sound-insulating door according to the first and second aspects of the present invention, the communication passage is directed along the thickness direction of the door and communicates with the first opening, and the door communication surface is directed toward the door surface. And a vertical communication passage communicating with the second opening. The length of the vertical communication passage can be set larger than the length of the horizontal communication passage. As a result, the sound propagation distance can be increased, and sound attenuation can be ensured by increasing the propagation distance. Assuming that the length of the vertical communication passage is MA and the length of the horizontal communication passage is MB, (MA / MB) =
1.1 to 40. However, it is not limited to this.

Further, according to the sound insulation door according to the first invention and second invention, the tower mounting parts, form a door bottom sound insulation means
It adopts a sound insulating member that can be formed. Sound insulation of the door bottom sound insulation means
The member closes a gap between the door bottom surface and the floor surface, and suppresses sound transmission through the gap.

As a typical door bottom sound insulation means, for example, a means provided with a sound insulation member capable of adjusting the opening amount of a gap between the door bottom surface and the floor surface, and an operating portion for operating the sound insulation member is employed. can do. In this case, with the closing of the door, the operating unit switches to a sound insulation position where the sound insulation member contacts or approaches the floor surface. With the opening of the door, the operating unit switches to a retreat position for retreating the sound insulating member away from the floor surface. The sound insulating member can be made of an elastically deformable material such as rubber or soft resin so as to enhance the sealing property between the door bottom surface and the floor surface.

When the sound insulation member of the door sound insulation means is in the sound insulation position, sound transmission between the door bottom surface and the floor surface is suppressed. When the sound insulating member of the door bottom sound insulating means is in the retracted position, contact friction between the sound insulating member of the door bottom sound insulating means and the floor is reduced or avoided, and the movement of the sound insulating door when opening and closing is controlled by the sound insulating member of the door bottom sound insulating means. Can be suppressed, and smooth operation of the sound insulation door is ensured.

[0022]

(Embodiment 1) A first embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows an overall front view of the sound insulating door 1, FIG. 2 shows a front view near the lower portion of the sound insulating door 1, and FIG. 3 shows a cross section of the lower portion of the sound insulating door 1 along the door thickness direction. 4 shows the vicinity of the door bottom surface, and FIGS. 5 to 7 show the door bottom sound insulation means.

As shown in FIG. 1, a sound insulating door 1 according to this embodiment is for opening and closing an entrance of a toilet room.
It has a knob 1x for opening and closing operation. Outside the sound insulation door 1,
An outer frame 18 whose lower part is open is provided. Outer frame 18
Are upper frame 18a and side frames 18b and 18c facing each other.
With. The sound insulation door 1 is attached to the outer frame 18 so as to be rotatable via a pivot support 1r. A gap FA (see FIG. 3) is formed between the door bottom surface 1c and the floor surface F in order to ensure the rotational operability of the sound insulating door 1.

As shown in FIG. 3, in the sound-insulating door 1, decorative plates 10 which enhance the appearance design and have a sound insulating property are arranged on the outer surface side so as to face each other. A sound insulation sheet 12 that can function as a sound insulation member is arranged inside each decorative plate 10. Between the sound insulating sheets 12, a sound absorbing material 13, which can function as a sound insulating member having excellent sound absorbing properties and sound insulating properties, is buried over substantially the entirety of the sound insulating door 1. The sound absorbing material 13 is made of a foamed mass such as a urethane foam layer, which is a porous body having bubbles, or an aggregate of foamed beads in consideration of weight reduction, sound insulation, cost, and the like. Since the above configuration is adopted, the sound insulating door 1 of the present embodiment is excellent in sound insulating properties.

The door surfaces 1a and 1b of the sound insulating door 1 face each other. One door surface 1a is in the toilet room K1.
Face to face. The other door surface 1b of the sound insulation door 1 faces the outside of the room. The door bottom surface 1c of the sound insulating door 1 faces the floor surface F. The floor surface F is flat and has a barrier-free structure in which a step that can be an obstacle is not formed.

The sound insulating door 1 has a first opening 21 that opens near the lower part of the door surface 1a, and a second opening 22 that opens at the door bottom surface 1c. Since the first opening 21 is formed near the lower part of the door surface 1a, the user can use the first opening 21.
The opening 21 is difficult to visually recognize, and the degree of freedom in selecting the overall appearance of the sound insulating door 1 can be ensured. Second opening 2
Since the second opening 2 is formed on the door bottom surface 1c, the user cannot visually recognize the second opening 22 in a normal state, so that the appearance design of the sound insulating door 1 is not affected.

The first opening 21 is provided with a decorative body 3 for improving the appearance design. The makeup body 3 includes an upper first makeup body 31 and a lower second makeup body 32.

As shown in FIGS. 1 and 2, the first opening 21
Is elongated in a slit shape along the door width direction, that is, in the direction of arrow D, while opening on the door surface 1a. The communication passage 23 is also elongated and extends in the door width direction, that is, along the arrow D direction. Similarly to the first opening 21, the second opening 22 is also elongated and extends in a slit shape along the door width direction, that is, the direction of the arrow D, and the length of the second opening 22 is the first opening 21.
It is about the same as the length.

In FIG. 2, the length of the first opening 21 along the direction of arrow D, the length of the second opening 22 along the direction of arrow D, and the length of the communication passage 23 along the direction of arrow D are shown. L
1, and the height of the communication passage 23 is indicated as h1. When the total width L2 of the sound insulating door 1 is set to 100, the length L1 is set to 60 to 95, but is not limited thereto.

As shown in FIG. 3, the communication passage 23 has a substantially inverted L-shape in cross section. That is, the communication passage 23 is directed along the door thickness direction, that is, along the arrow T direction, and communicates with the first opening 21. 2
And a vertical communication path 23b communicating with the second communication path 2. Since the horizontal communication passage 23a and the vertical communication passage 23b are formed in such a direction as to intersect with each other, the propagation distance of the sound propagating through the communication passage 23 is ensured while ensuring the air permeability communicating between the inside and the outside of the sound insulation door 1. Can be increased, the sound attenuation can be improved, and the sound insulation can be improved.

In this embodiment, when the length of the vertical communication passage 23b is MA and the length of the horizontal communication passage 23a is MB in FIG. 3, the length MA of the vertical communication passage 23b is MA. Is set to be larger than the passage length dimension MB of the horizontal communication passage 23a. Specifically, (MA / MB) =
It is set to 1.2 to 5. However, it is not limited to this.

The length MA of the vertical communication passage 23b is as follows.
It means the length between the intersection Pn where the center line Pa of the vertical communication passage 23b intersects with the center line Pb of the horizontal communication passage 23a and the second opening 22. The passage length dimension MB of the horizontal communication passage 23a means a length between an intersection Pn where the center line Pb of the horizontal communication passage 23a intersects with the center line Pa of the vertical communication passage 23b and the first opening 21. .

In this embodiment, since the length of the vertical communication passage 23b is relatively long, the length of the communication passage 23 is set longer than the average thickness of the sound insulating door 1. Thereby, the propagation distance of the sound propagating through the communication path 23 can be increased, which is advantageous for ensuring sound attenuation. In addition, it is set in the range of (length dimension of the passage length of the communication passage 23 / average thickness dimension of the sound insulation door 1) = 1.2 to 5. However, it is not limited to this. Note that the length dimension of the communication passage 23 is the first opening 21.
Means the length of the center line of the communication path 23 extending from the first opening 22 to the second opening 22.

According to the present embodiment, as shown in FIG. 3, the vertical communication passage 23b is disposed so as to be offset from the center line P1 of the sound insulating door 1 in the door thickness direction, that is, in the direction of the arrow T. As will be described later, it is formed so as to avoid the frame 5 and the sound insulating member 60 which are mounted components. Communication passage 23
Are formed inside a sound absorbing material 13 which is a material having sound absorbing and sound insulating properties. For this reason, the communication path 23 is
And directly faces the sound absorbing material 13. Thereby, sound propagation through the communication path 23 is more effectively attenuated.

In this embodiment, as shown in FIG. 3, an arrow T which is the thickness direction of the door bottom surface 1c of the sound insulating door 1 is provided.
A frame 5 functioning as a mounting component is fixed in an intermediate region in the direction. The frame 5 extends in the door width direction of the sound insulating door 1, that is, in the direction of arrow D (see FIG. 4), and is formed of a material such as a metal such as aluminum or a hard resin. It has a function of reinforcing the vicinity of the bottom and a function of retracting and housing a sound insulating member 60 described later. The frame 5 has a U-shaped cross section, has two standing walls 50 facing each other, and a horizontal wall 51 connecting the standing walls 50 to each other, and the lower surface is open.

Near the door bottom surface 1c of the sound insulation door 1, a door bottom sound insulation means 6 is mounted. Door sound insulation means 6
A movable sound insulation member 60 extending as a mounting component extending in the door width direction of the sound insulation door 1, that is, the direction of arrow D (see FIG. 4), and the sound insulation member 6 with the opening and closing of the sound insulation door 1.
An operating mechanism 62 (see FIG. 6) as an operating unit for automatically raising and lowering the zero. The sound insulation member 60 is formed of a material having sound insulation properties, such as rubber or soft resin, and is disposed in the storage chamber 53 of the frame 5 fixed to the bottom of the sound insulation door 1. Actuating mechanism 62 (see FIG. 6)
Are provided near the lower portions of both ends in the width direction of the sound insulating door 1.

As shown in FIG. 3, the sound insulating member 60 and the frame 5
Is provided in the middle area of the door bottom surface 1c in the direction of the arrow T, which is the direction of the thickness of the door, so that the sound insulation member 60 disposed in the frame 5 for improving the sound insulation is provided by the first opening 21 and the second
It is located between the first opening 21 and the second opening 22 in the direction of arrow T in order to enhance the sealing performance between the opening 22 and the opening 22.

As shown in FIG. 6 and FIG.
Are a plurality of lifting pins 63 integrally held by the sound insulating member 60, a coil-shaped lifting spring 64 as a tension spring interposed between the head 63 c of the lifting pin 63 and the sound insulating member 60. A horizontal pin-shaped actuator 65 movable in the directions of arrows D1 and D2 which are the door width directions;
In the direction of arrow D2, and the flange 65c of the
A coil-shaped urging spring 66, which is a compression spring that is brought into contact with the end plate 1m, a pressing projection 67 integrally fixed to the sound insulating member 60, and a pressing projection 67 and the actuator 65 are disposed. And a sphere 68 functioning as an operating force direction changing member. The head 6 of the actuator 65 is actuated by the urging force of the urging spring 66.
5a is urged in the direction of arrow D2, and the end plate 1m of the sound insulating door 1
Projecting outward.

When the sound insulating door 1 is open, the sound insulating member 60 is lifted in the direction of the arrow C2 by the urging force of the lifting spring 64, and the retracted position H moves away from the floor F.
A has been switched. Therefore, the lifting spring 64 functions as a retracting unit that retracts the sound insulating member 60.

As can be understood from FIG. 5, when the sound-insulating door 1 is turned in the direction of arrow F1 and the sound-insulating door 1 is closed, the head 18 of the actuator 65 is moved by the portion 18x of the outer frame 18 to which the sound-insulating door 1 is attached. The part 65a is pushed in the direction of arrow D1. When the operating element 65 is pressed in the direction of the arrow D1 in this manner, the spherical body 68 is pressed downward by the inclined surface 65m of the operating element 65 as can be understood from FIG.
7 moves downward, that is, in the direction of arrow C1, whereby the sound insulating member 60 moves in the same direction.
Contacts or approaches the floor surface F. As a result, the sound insulation member 6
0 is switched to the sound insulation position HB. In this case, since the sound insulation member 60 closes the gap FA between the door bottom surface 1c and the floor surface F, the sound insulation is further enhanced.

On the other hand, when the sound-insulating door 1 is rotated and opened in the direction of arrow F2 (see FIG. 5),
8x is released from pushing the head 65a of the actuator 65. For this reason, the operating element 65 is urged by the urging spring 66 in the direction of the arrow D2, and the operating element 65 automatically returns to a position where the flange 65c of the operating element 65 contacts the end plate 1m. For this reason, the sound insulating member 60 is automatically lifted in the direction of arrow C2 by the urging force of the lifting spring 64, becomes the retracted position HA, and the gap width between the door bottom surface 1c and the floor surface F increases. If the sound insulation member 60 rises from the floor F in this way,
The contact friction between the sound insulation member 60 and the floor surface F is reduced or avoided, so that the sound insulation member 60 can be prevented from interfering with the movement of the sound insulation door 1, and the rotation operation of the sound insulation door 1 becomes smooth.

The operating element 65, the sphere 68, and the pressing protrusion 67 constitute an operating force direction changing mechanism for changing the direction of an external force applied to lower and close the sound insulating member 60.

As can be understood from the above description, according to the present embodiment, since the first opening 21, the second opening 22, and the communication passage 23 are formed, the sound insulation door 1 is closed. Even so, good air permeability between the inside and outside of the sound insulating door 1 can be obtained by utilizing the gap FA below the door bottom surface 1c.
Therefore, when the sound insulation door 1 is closed, it is possible to suppress a problem that the sound insulation door 1 becomes difficult to close. Furthermore, even when the sound insulation door 1 is closed and the room K1 is sealed, the ventilation of the room K1 can be ensured. Further, when a ventilation fan is provided in the room K1, the closed room K1 is easily made negative pressure by the operation of the ventilation fan.
Accordingly, it is possible to prevent the pressure in the room K1 from becoming negative. For this reason, when opening the sound insulation door 1 in the closed state, it is possible to suppress a problem that the sound insulation door 1 becomes difficult to open due to negative pressure in the room K1.

Further, according to the present embodiment, the first opening 21 is formed in the door surface 1a, the second opening 22 is formed in the door bottom surface 1c, and the communication passage 23 has an inverted L-shape. Is formed. That is, the communication passage 23 is the sound insulating door 1
It does not directly penetrate in the thickness direction of the door. Therefore, even when the thickness of the sound insulating door 1 is small, it is advantageous to secure a sound propagation distance, and the sound attenuation can be improved.

Further, according to this embodiment, since the second opening 22 is formed in the door bottom surface 1c facing the floor surface F, which is difficult to see, the outside person is prevented from seeing through the communication passage 23. it can. Although the second opening 22 for preventing see-through is formed in the door bottom surface 1c, the first opening 21 is formed in the door surface 1a facing the room K1, so that the door is prevented while preventing see-through by an outsider. Air permeability between the inside and outside can be ensured.

According to the present embodiment, as shown in FIG. 3, the vertical communication passage 23b has a cross section along the thickness direction of the door with respect to the center line P1 of the sound insulating door 1 in the direction of the thickness of the door, that is, the direction of the arrow T. It is arranged to be biased. Therefore, due to space limitations, even when the frame body 5 or the sound insulation member 60 as a mounting component is disposed in the middle area in the door thickness direction of the door bottom surface 1c, the vertical communication passage having the increased passage width dc is used. 2
3b can be formed inside the sound insulating door 1, and the amount of ventilation communicating between the inside and outside of the door can be increased.

When the length of the communication path is short, the sound propagation distance is shortened accordingly, so that the sound propagation property tends to be improved and the sound insulation property tends to be reduced. In this respect, according to the present embodiment, the vertical communication passage 23b of the communication passage 23 is located on the door surface 1b side with respect to the center line P1 of the sound insulating door 1 in the door thickness direction, that is, the direction of the arrow T, that is, the first opening 21. It is arranged so as to be biased to the side away from the camera. For this reason, the passage length of the horizontal communication passage 23a can be lengthened, and the sound propagation distance can be further increased.
Sound insulation can be improved.

Further, according to the present embodiment, the first opening 21 and the second opening 22 are elongated in the width direction of the door, that is, in the direction of arrow D, and extend in a slit shape. Further, the communication passage 23 is also elongated in the door width direction, that is, in the direction of arrow D. For this reason, while ensuring the sound insulation performance of the sound insulation door 1, the ventilation cross-sectional area can be increased, and the amount of ventilation per unit time can be increased.

Further, since the first opening 21 is formed in an elongated slit shape and is formed at the lower portion of the sound insulation door 1, it is difficult for a user to visually recognize the presence of the first opening 21. Does not detract from the design of the appearance.
In particular, according to the present embodiment, as shown in FIG.
The height position of the first opening 21 formed in the chamber wall 10
0 is provided so as to correspond to the height position of the upper end 101a of the lower skirting board 101 at the lower part of the room wall 100. Does not impair the appearance design.

In addition, according to this embodiment, when the sound insulating door 1 is closed and the room K1 is closed, the sound insulating member 60 comes into contact with or approaches the floor F, and the sound insulating member 60 is switched to the sound insulating position HB. Have been. As a result, the sound insulation door 1
When the toilet is closed and the toilet is used, the sound insulation can be further enhanced, and the discomfort caused by sound propagation can be reduced. On the other hand, when the sound insulating door 1 is rotated and opened, the sound insulating member 60 is automatically lifted by the urging force of the lifting spring 64 to be in the retracted position HA, and the gap width between the door bottom surface 1c and the floor surface F increases. Therefore, the opening operability of the sound insulating door 1 can be ensured.

(Embodiment 2) FIG. 8 shows Embodiment 2. The second embodiment has basically the same configuration as the first embodiment, and basically has the same operation and effect. Hereinafter, the different parts will be mainly described.

As shown in FIG. 8, the horizontal communication passage 23a constituting the communication passage 23 is formed by a diagonal passage 23e which extends diagonally upward from the door surface 1a of the sound insulating door 1 toward the inside of the door.
It has. The oblique passage 23e is formed by an upper first makeup body 31b and a lower second makeup body 32b that constitute the makeup body 3B. As described above, since the oblique passage 23e is directed obliquely upward, it is prevented that the inside of the communication passage 23 is visually recognized by the naked eye K2 of the person on the door surface 1a side.

Further, since the oblique passage 23e is directed obliquely upward, even when the sound insulating door 1 is thinner than in the case where it is directed along the horizontal direction, the communication passage 23 is The overall path length can be increased, which can contribute to an increase in sound propagation distance, and can further contribute to a reduction in sound insulation.

Third Embodiment FIG. 9 shows a third embodiment. The third embodiment has basically the same configuration as the first embodiment, and basically has the same operation and effect. In this embodiment, as shown in FIG.
Are directed along the thickness direction of the door, that is, in the direction of arrow T. The first opening 21 is provided on the first upper side constituting the makeup body 3C.
It is formed of a makeup body 31c and a lower second makeup body 32c. The first opening 21 is formed not in the lower part of the door surface 1a of the sound insulating door 1 in the height direction but in a substantially middle area.

Fourth Embodiment FIG. 10 shows a fourth embodiment. The fourth embodiment has basically the same configuration as the first embodiment, and basically has the same operation and effect. Hereinafter, the different parts will be mainly described. In the present embodiment, as shown in FIG. 10, the lower part of the sound insulating door 1 on the side of the decorative plate 10 on the side of the door surface 1 b facing the first opening 21 along the direction of the arrow D which is the door width direction. The extended honeycomb structure 8 is embedded. The honeycomb structure 8 includes a pair of plate portions 80 and 81 facing each other, and a bent intermediate plate portion 83 arranged between the plate portions 80 and 81. In the upper part of the plate portion 80, a window 80w facing the horizontal communication passage 23a is formed. A plurality of vertical communication passages 23b are formed by the curved intermediate plate portion 83.
Are juxtaposed. Since the honeycomb structure 8 has a reinforcing function, the vicinity of the bottom of the sound insulating door 1 can be strengthened while forming the vertical communication passage 23b.

(Other Embodiments) In each of the above embodiments, the door surface 1a of the sound insulating door 1 faces the room K1 and the first opening 21 faces the room K1 as described above. . However, depending on the case, contrary to the above, the sound insulation door 1 may be used in a form in which the other door surface 1b faces the room K1 and the first opening 21 faces the outside of the room.

In each of the above embodiments, the toilet K
1 is a door used in an environment where both sound insulation and air permeability are required, such as an audio room, a bedroom, a guest room, and a business room. Of course, it can be applied to In addition, the present invention is not limited to the embodiment described above and shown in the drawings, but can be implemented with appropriate modifications as needed.

[0059]

According to the sound insulating doors of the first and second aspects of the present invention, the ventilation between the inside and outside of the door is ensured by utilizing the gap below the bottom of the door. Therefore, good air permeability that communicates between the inside and outside of the door can be obtained. Therefore, it is possible to suppress the sound insulation door from being difficult to close and the sound insulation door from being difficult to open due to negative pressure in the room.

According to the sound insulating doors of the first and second aspects, the first opening is formed in the door surface and the second opening is formed in the door.
The opening is formed in the bottom surface of the door facing the floor surface, so that the communication passage does not directly penetrate the sound insulating door in the thickness direction of the door. Therefore, even when the thickness of the sound insulating door is thin, a sound propagation distance can be secured, which is advantageous for securing sound attenuation. Further, since the second opening for ensuring air permeability is formed in the bottom surface of the door, it is possible to prevent see-through through the communication passage while ensuring air permeability communicating between the inside and outside of the door.

According to the sound-insulating door of the first invention, the communication passage portion along the door surface in the communication passage has a cross section along the door thickness direction, which is located at the center line of the sound insulation door in the door thickness direction. It is arranged to be biased with respect to. For this reason, even if the mounted component is provided in the middle area of the door bottom surface in the door thickness direction, it is possible to form a communication passage having a large passage width and a large ventilation amount, and a ventilation passage between the inside and outside of the door. The amount can be increased.

According to the sound insulating door of the second aspect, the first opening and the second opening are elongated in the door width direction, and the communication passage is also extended in the door width direction. Therefore, not only when the thickness of the sound insulating door is thick, but also when the thickness of the sound insulating door is thin, the ventilation cross-sectional area can be increased while ensuring sound insulation, and the amount of ventilation is increased. be able to.

[Brief description of the drawings]

FIG. 1 is a front view of a sound insulating door according to a first embodiment.

FIG. 2 is an enlarged front view of the vicinity of a lower portion of the sound insulating door according to the first embodiment.

FIG. 3 is a sectional view taken along line W3-W3 of FIG. 2;

FIG. 4 is a perspective view of the vicinity of a door bottom surface of the sound insulating door.

FIG. 5 is a cross-sectional view of a pivot portion of the sound insulating door.

FIG. 6 is a longitudinal sectional view of the vicinity of an operation mechanism of a door bottom sound insulation unit.

FIG. 7 is a sectional view near the bottom of the sound insulating door.

FIG. 8 is a cross-sectional view of the vicinity of a lower portion of the sound insulation door according to the second embodiment.

FIG. 9 is a cross-sectional view of the vicinity of a lower portion of the sound insulation door according to the third embodiment.

FIG. 10 is a cross-sectional view of the vicinity of a lower portion of the sound insulating door according to the fourth embodiment.

[Explanation of symbols]

In the figure, 1 is a sound insulation door, 1a and 1b are door surfaces, 1c is a door bottom, 21 is a first opening, 22 is a second opening, 23 is a communication passage, 23a is a horizontal communication passage, 23b is a vertical communication passage, and 23e. Is an oblique passage, 5 is a frame body (mounted parts), 6 is a door bottom sound insulation means, 60 is a sound insulation material (mounted parts), 62 is an operation mechanism (operation part), HA is a retracted position, HB is a sound insulation position, and F is Floor, F
A indicates a gap, D indicates a door width direction, T indicates a door thickness direction, and Y indicates a door surface direction.

Continuation of the front page (56) References JP-A-8-284546 (JP, A) JP-A-11-270246 (JP, A) JP-A-11-131926 (JP, A) JP-A 62-182386 (JP) , U) Shokai Sho 57-133792 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E06B 5/20 E06B 7/20

Claims (6)

(57) [Claims] 1. A door bottom surface facing a floor surface, and a mounting component provided in an intermediate region in a door thickness direction of the door bottom surface, wherein a gap is formed between the door bottom surface and the floor surface. A sound-insulating door having a sound-insulating property attached thereto, wherein the mounting component moves downward with the closing of the door and moves downward.
Contacting or approaching to suppress sound propagation through the gap
The sound insulating door has a first opening that opens on the door surface, a second opening that opens on the bottom surface of the door, and connecting the first opening and the second opening to open and close the door. And a communication passage portion along the door surface direction of the communication passage, wherein a cross section along the door thickness direction of the sound insulating door in the door thickness direction is provided. A sound-insulating door, wherein the sound-insulating door is arranged so as to be deviated from a center line so as to avoid the sound insulating member . 2. The communication path according to claim 1, wherein the communication path includes a horizontal communication path extending along the thickness direction of the door, and a vertical communication path extending along the surface direction of the door. A sound insulating door, wherein the communication passage is arranged so as to be biased toward a side away from the first opening with respect to the center line in the thickness direction of the door. 3. The sound insulation door according to claim 2, wherein the vertical communication passage is set longer than the horizontal communication passage. 4. A door bottom surface facing a floor surface and a mounting component provided in an intermediate region in a door thickness direction of the door bottom surface, wherein a gap is formed between the door bottom surface and the floor surface. A sound insulating door having a sound insulating property, wherein the mounted component moves downward with the closing of the door and moves downward.
Contacting or approaching to suppress sound propagation through the gap
The sound insulating door has a first opening that opens on the door surface, a second opening that opens on the bottom surface of the door, and connecting the first opening and the second opening to open and close the door. and a communication passage communicating, and said first opening, said second opening is extended in elongated slit shape along the door width direction, the communicating passage is said along said door width direction A sound insulation door extending so as to avoid the sound insulation member . 5. The method according to claim 1, wherein :
Te, in addition to the gap between the opening of the adjustable sound insulating member between the front SL door bottom and the floor, provided with an actuation unit for actuating the sound insulating member, with the closing of the door, the actuating portion Switches the sound insulation member to a sound insulation position where the sound insulation member contacts or approaches the floor surface, and switches the operation unit to a retreat position where the operation unit moves the sound insulation member away from the floor surface when the door is opened. Sound insulation door. 6. Either one of claims 1 to 5, sound insulation door passage length of the communicating passage is characterized in that it is longer than the thickness dimension of the sound insulation door.