JP2022067582A - Soundproof booth - Google Patents

Abstract

To provide an inexpensive soundproof booth that is easy to transport and assemble.SOLUTION: There is provided a soundproof booth composed of plate-shaped members connected to each other by hinges, including a front member with a door function, a right member and a left member connected to the front member by the hinge, a rear member connected to the right member and the left member by the hinge, and a roof member connected to the front member by the hinge. The right member, the left member, and the roof member are configured to be foldable by connecting two partial members by hinges, respectively. Among the plate-shaped members, members other than the rear member are foldable so as to overlap the rear member.SELECTED DRAWING: Figure 1

Description

The present invention relates to a soundproof booth that prevents damage caused by sound in the home or in the neighborhood.

Conventionally, various soundproof booths have been disclosed in order to avoid inconvenience to family members and neighbors when practicing vocals and musical instruments. In particular, since it costs 1 million yen to install a full-scale soundproof room, inexpensive structures and members have been proposed.

In order to reduce the price, a soundproof booth composed of paper panels as a material has been proposed (see Patent Documents 1 and 2). Further, those that can be assembled by an end user (see Patent Document 3) and those that can be folded when not in use (see Patent Document 4) have been proposed.

Japanese Unexamined Patent Publication No. 2009-215787 JP-A-2009-84991 Draft Registration No. 3176732 Japanese Unexamined Patent Publication No. 2006-31264 Published Practical Publication No. 59-51109, Showa 59-51109

However, the invention of the soundproof booth described in Patent Documents 1 and 2 has difficulty in obtaining a predetermined sound insulation effect and also has a difficulty in durability. The invention described in Patent Document 3 aims to be assembled by an end user, but has a problem that it is difficult to handle because the panel, which is a component, is large and heavy. Further, it is pointed out that the device disclosed in Patent Document 4 has a large number of component parts, and the depth of the folded object is not sufficiently small.

The subject matter of the present invention has been set in view of the above circumstances, and a main object of the present invention is to provide an inexpensive soundproof booth that is easy to transport, assemble and disassemble.

The soundproof booth of the present invention is a soundproof booth composed of plate-shaped members connected to each other by hinges, and is a front member having a door function, and a right member and a left member connected to the front member by the hinges. The right member, the left member, the rear member connected by the hinge, the front member and the roof member connected by the hinge, and the right member, the left member, and the roof member, respectively. A soundproof booth characterized in that two partial members are connected by hinges and configured to be foldable, and members other than the rear member among the plate-shaped members are configured to be foldable so as to overlap the rear member. Is.

A soundproof booth composed of a plurality of plate-shaped members connected to each other by hinges, a soundproof booth composed of plate-shaped members connected to each other by hinges, and a front member having a door function. It includes a right member and a left member connected to the front member by the hinge, a rear member connected to the right member and the left member by the hinge, and a roof member connected to the front member by the hinge. The right member, the left member, and the roof member are each configured by connecting two partial members with hinges so as to be foldable, so that a member other than the rear member of the plate-shaped member overlaps the rear member. Since it is foldable, it is possible to easily configure a soundproof booth with good soundproofing characteristics that can be stored compactly when not in use.

The soundproof booth according to claim 1 is the soundproof booth according to claim 1, wherein a soundproof material having a repeating shape with an uneven surface is attached to the inner surface of the plate-shaped member.

Since a soundproofing material having a repeating shape with an uneven surface is attached to the inner surface of the plate-shaped member, a soundproofing booth with excellent soundproofing characteristics can be configured in which standing waves are less likely to stand inside the soundproofing booth.

The soundproof booth according to claim 3 is the soundproof booth according to claim 2, wherein the soundproof booth is provided with a fall prevention device for preventing the soundproof booth from tipping over in a folded state.

Since the soundproof booth is provided with a fall prevention device that prevents the soundproof booth from tipping over in a folded state, the soundproof booth can be closed in a stable state when the soundproof booth is not used.

The soundproof booth according to claim 4 is characterized in that the fall prevention device is a stretchable tension rod arranged so as to be stretched between the floor and the ceiling where the soundproof booth is installed on the rear member. The soundproof booth according to claim 3.

Since the fall prevention tool is a stretchable tension rod arranged so as to be stretched between the floor and the ceiling where the soundproof booth is installed on the rear member, a reliable fall prevention effect can be expected.

In the soundproof booth according to claim 5, the tension rod connects one end to a telescopic portion composed of a first member and a second member housed therein, and a lower end portion of the second member housed in the first member. The pulling member is pulled out of the first member through a guide portion between the upper end portion of the first member and the lower end portion of the second member, and the pulling member fixed to the first member. The soundproof booth according to claim 4, further comprising a locking portion for locking the.

One end of the tension rod is connected to a telescopic portion composed of a first member and a second member housed therein, and a lower end portion of the second member housed in the first member, and the upper end portion of the first member. A pulling member pulled out of the first member through a guide portion between the lower ends of the second member, and a locking portion fixed to the first member and locking the pulling member. Since it is provided, the length of the tension rod can be easily adjusted, and a high fall prevention effect can be obtained for the soundproof booth in the closed state.

In the soundproof booth according to claim 6, after the soundproof booth is assembled, the roof member is fixed to the right member, the left member, and the rear member, and the front member, the right member, and the left member. The soundproof booth according to any one of claims 2 to 5, wherein a plurality of floor members are spread so as to be in contact with the lower portion of the rear member to form a floor surface.

After assembling the soundproof booth, the roof member is fixed to the right member, the left member, and the rear member, and is in contact with the front member, the right member, the left member, and the lower part of the rear member. Since the floor members of the above are laid out to form the floor surface, the shape of the soundproof booth after assembly can be stabilized.

The soundproof booth according to claim 7 is characterized in that at least the hinge connecting the front member and the right member and the left member, the right member and the left member and the rear member is a insertion / removal hinge. The soundproof booth according to any one of claims 2 to 6.

Since at least the hinge connecting the front member and the right member and the left member, the right member and the left member and the rear member is a insertion / removal hinge, assembly and disassembly can be easily performed.

The soundproof booth according to claim 8 is provided with square lumber on the edges of the roof member, the front member, the right member, the left member, and the rear member so as to surround the soundproof material, and the hinge is attached to the square lumber. The soundproof booth according to any one of claims 2 to 7, wherein the booth can be attached.

A square lumber is provided on the edges of the roof member, the front member, the right member, the left member, and the rear member so as to surround the soundproof material, and the hinge is attached to the square material, so that the soundproof booth is mechanically stable. It becomes a structure.

The soundproof booth according to claim 9 has irregularities on the surface of the soundproof material formed at regular intervals, and is located in a concave portion of the soundproof material facing the convex portions of the soundproof material when the soundproof booth is folded. The soundproof booth according to any one of claims 2 to 8, wherein the soundproof material is arranged so as to be used.

The surface irregularities of the soundproof material are formed at regular intervals, and the soundproof material is arranged so that the convex portions of the soundproof material facing each other when the soundproof booth is folded are located in the concave portions of the soundproof material facing each other. Therefore, the depth of the folded soundproof booth can be reduced.

FIG. 3 is an external view of the soundproof booth according to the embodiment, in a state where (A) the door is closed and (B) a state where the door is open. It is explanatory drawing of (A) the state which the roof member is folded, and (B) the state which the roof member is lowered down. It is explanatory drawing of the state which (A) the left and right members were folded while (B) the left and right members were folded. It is explanatory drawing that the tension rod expands and contracts by pulling out a belt. It is explanatory drawing of the locking part of a belt. It is explanatory drawing of the soundproof material which has the unevenness on the surface. It is explanatory drawing of the floor member. (A) is an explanatory view for assembling the plate-shaped member by a hinge attached to the plate-shaped member, and (B) is an explanatory view of the assembled plate-shaped member.

Conventional soundproof booths with good soundproofing characteristics are relatively expensive, and inexpensive simple types are said to have drawbacks in soundproofing characteristics and durability. Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention was born from the development of trial and error by the inventor in order to solve the problems of the conventional soundproof booth.

There are two types of sounds: "air sounds" that travel through the air and reach your ears, and "solid sounds" that you can hear footsteps and falling sounds of objects traveling through the floor and walls. "Air sound" is the sound transmitted through the air such as the sound of jet planes, automobiles, and musical instruments, and "solid sound" is the sound of footsteps and speakers on the upper floors, the sound of trains and trucks, and toilets. It is a sound that is heard by vibrating an object, such as the sound of drainage.

The ability of each part of a house to block noise is called sound insulation performance and is represented by a D value (a numerical value representing the sound insulation of air sound). In a wooden house with general specifications, the sound insulation performance of the wall is said to be about D-40 (outer wall) and D-30 (inner wall). If it is a detached house, the target that is considered to be noisy is the next house, and if it is an apartment house such as an apartment, the target is the next upper and lower floor dwelling units. Depending on the use of the living room or the like in the target house, the allowable noise is "about 40 to 45 dB" in the living room or the like.

On the other hand, the sound pressure level emitted from the musical instrument that is the sound source is 95 dB to 105 dB when playing the tenor saxophone or trumpet, so D-65 is required to make the sound pressure level acceptable in the living room about 40 to 45 dB. Desired. To lower the sound pressure level, there are sound absorption that absorbs the sound from the sound source and sound insulation that shields the sound between the sound source and the observation point, and it is necessary to combine both to improve the soundproofing effect.

Assuming that the sound insulation performance with the neighboring house is D-35 on average, the sound insulation performance required for the soundproof booth is D-30, which is a provisional target soundproof characteristic of the soundproof booth. Further, the invention of the present application also aims to make the packaging size smaller so that the invention can be purchased by an individual by mail order or the like. It is also important to provide a structure that can be easily assembled by an individual at a low cost.

The soundproof booth 100, which is an embodiment of the present invention developed based on the above requirements, will be described below. FIG. 1 is a perspective view of the appearance of the embodiment. The dimensions were about 90 cm or 120 cm in width, about 90 cm in depth, and about 200 cm in height. These dimensions are selected from the standard lengths of commercially available materials while listening to the user's voice.

The soundproof booth shown in FIG. 1A has a box-shaped shape and is configured by combining plate-shaped members. As the plate-shaped member, for example, a veneer plate is suitable. A soundproofing material 301 is attached to the inside of the plate-shaped member to improve the soundproofing characteristics. The front member 1 is provided with a door 2, and the front member 1 has a door function. The door 2 is provided with a window composed of two transparent acrylic plates. In FIG. 1, the soundproofing material 301 inside can be seen from the window of the transparent acrylic plate.

FIG. 1B shows a state in which the door 2 is opened. The soundproof material 301 is attached to the entire inside of the soundproof booth 100. When sound is incident on the soundproof material 301, friction and fine vibration are generated in the soundproof material to generate heat energy, thereby absorbing sound. Specifically, glass wool material, felt material, urethane sponge material, etc., which are porous soundproof materials, are excellent in cost performance. Further, it is preferable that the surface shape has irregularities to prevent the generation of standing waves due to sound reflection. The roof member 7 is divided into a roof front member 71 and a roof rear member 72. Further, the right member 3 shown in FIG. 1B is divided into a right front member 31 and a right rear member 32. The left member 6 (not shown) is also divided into a left front member 61 and a left rear member 62. A fall prevention tool 102 for preventing a fall when folded is fixed to the rear portion of the soundproof booth 100. The roof member 7 is provided with a hole 110 for attaching a ventilation fan.

Hereinafter, a state in which the soundproof booth 100 is folded will be described with reference to FIGS. 2 and 3. FIG. 2A shows the first stage of handling the roof member, in which the roof member 7 divided into two partial members, the roof front member 71 and the roof rear member 72, is first folded. Since the roof member 7 is divided, it is possible to prevent the roof member from hitting the ceiling when the roof member 7 is folded. FIG. 2B shows a state in which the roof member 7 divided into two pieces is lowered in front of the front member 1. A square lumber 405 is provided so as to surround the soundproof material 301 stretched on the inner surface of the plate-shaped member. This is for convenience when connecting plate-shaped members with hinges.

FIG. 3A shows how the left and right members are folded. The left and right members are divided into partial members of the right front member and the right rear member, and the left front member and the left rear member, respectively, and are connected by hinges, so that they can be easily folded. FIG. 3B shows how the left and right members are folded and the front member is pushed toward the rear member to realize a state in which the depth is significantly reduced as compared with the time of assembly. When all the plate members are folded so that the members other than the rear member overlap the rear member, the depth thereof is reduced to about 5 sheets obtained by adding the dimensions of the soundproof material to the plate-shaped member. In this state, there is a risk of falling back and forth, so the fall prevention tool 102 is fixed to the rear part. The fall prevention tool 102 has a variable length function, and can sufficiently stabilize a soundproof booth installed and folded between the floor and the ceiling. Further, in order to prevent the rear member 5 from falling, if the installation location of the soundproof booth 100 is near the wall surface, the rear member 5 may be supported by using a fall prevention tool having a fixed portion adhered to the wall surface. Further, although a protrusion is generated on the floor, a ski plate-shaped member may be fixed to the rear member 5.

It is preferable to attach the non-slip 103 to the mounting surface of the tension rod 102 for preventing the fall, which is in contact with the ceiling and the floor. A pedestal may be provided and a compression spring may be inserted in the receiving portion to urge the pedestal in the extension direction. Since the door is closed to ensure soundproofing, a ventilation fan capable of intake and exhaust for ventilation is provided. Further, an additional sound absorbing member may be used for the rear member in consideration of placing the soundproof booth near the wall near the neighboring house. The inside of the soundproof booth will also be supplied with the necessary power for lighting.

The structure of the variable length tension rod mainly arranged between the floor and the ceiling will be described with reference to FIGS. 4 and 5. The tension rod 102 used in the present invention has one end connected to a telescopic portion composed of a first member and a second member housed therein, and a lower end portion of the second member housed in the first member. A pulling member pulled out of the first member through a guide portion between the upper end portion of the member and the lower end portion of the second member, and a member fixed to the first member to lock the pulling member. It is characterized by having a stop and can be expanded and contracted. Here, the shapes of the first member and the second member are arbitrary, and in addition to a round pipe having a circular cross section and a square pipe having a square cross section, the second member moves up and down along a guide portion provided on the first member. It may be a flat plate. Further, a flexible rope or belt is suitable for the pulling member. The guide portion may be provided with a groove in the first member or the second member.

As the tension rod 102 used in the present invention, a round pipe was used as the first member 202 and the second member 201 within the first member 202. As shown in FIG. 4, it has a structure in which a small diameter pipe 201 and a large diameter pipe 202 are combined and a belt 203 is locked to the lower end portion of the small diameter pipe 201. The 201 may be locked to the small diameter pipe of the belt by fixing with a stud or a screw, but the end portion of the belt 203 may be adhered to the small diameter pipe 201.

Before adjusting the length of the tension rod, as shown in FIG. 4A, the small diameter pipe 201, which is the second member, is housed in the large diameter pipe 202, which is the first member, and one end at the end of the small diameter pipe. The locked belt 203 is pulled out through the space between the outer wall of the small diameter pipe and the inner wall of the large diameter pipe. In FIG. 4, the length of the small diameter pipe 201 is drawn longer than the length of the large diameter pipe 202, but the length of the small diameter pipe may be the same as or shorter than the length of the large diameter pipe. Further, it is desirable that the belt 203 is longer than the length of the small diameter pipe.

The principle of adjusting the length of the tension rod of the soundproof booth of the present invention will be described with reference to FIG. In FIG. 4, a buckle storage unit 205 containing a DC buckle that locks the belt is added to the upper end of the large-diameter pipe. In FIG. 4A, a tension rod in which the small diameter pipe 201 is housed in the large diameter pipe 202 and the length is short is drawn. The belt 203 protruding from the edge of the large-diameter pipe is passed through a DC buckle that functions as a locking portion housed in the locking portion container 205, and the extra length hangs down.

As shown in FIG. 4B, when the rope hanging out of the large-diameter pipe 202 of the belt 203 is pulled downward, one end of the belt 203 connected to the end of the small-diameter pipe 201 folded back by the DC buckle is lifted. , The small diameter pipe 201 moves upward and the length of the tension rod becomes longer.

FIG. 5 will explain how the belt 203 is passed through the DC buckle 206 housed in the DC buckle storage portion 205, which is the locking portion of the tension rod, and the belt is locked by the DC buckle 206. In FIG. 5A, the release lever 263 is pushed by a finger while the belt is passed, and the locking teeth 261 are floating. In this state, the belt 203 can move freely. In FIG. 5B, the locking tooth 261 is pressed against the roll, and when the small diameter pipe 201 is lowered and the belt is pulled in this state, the belt 203 is locked by the locking tooth 261. When the small diameter pipe goes down and the belt is pulled down, the lock becomes stronger.

As shown in FIG. 4A, the belt 203 passes between the roller 262 and the locking teeth 261 and is folded back at the edge of the large diameter pipe 202. The locking teeth 261 are urged in the roller 262 direction by a built-in spring, and when the belt is pulled in the direction of the arrow, the locking teeth bite into the belt and exhibit a locking function in which the movement of the belt is prevented. Then, when the release lever 263 is pushed, the belt can move freely and the locking function is released. In order to hold the locking tooth 261 in a floating state, the release lever 263 is pushed and the release holding lever 207 is tilted inward. When the release holding lever 207 is extended to the outside, the release lever 263 is lifted by the spring, the locking teeth 61 bite into the belt, and the movement of the belt is locked.

6 (A) and 6 (B) show the appearance of the soundproofing material used in the experiment. FIG. 6A has a shape of irregularities having regular irregularities in two orthogonal directions. FIG. 6B has a regular uneven shape in one direction. As shown in FIG. 3, when the soundproof booth is folded, the left and right members and the front member and the rear member face each other, so that the soundproof material attached to the inside of the left and right members faces the soundproof material of the front member and the rear member. become. At this time, if the unevenness of the soundproofing materials facing each other is arranged so as to fit each other, the gap between the soundproofing materials facing each other becomes smaller as in the soundproofing materials 303 and 304 of FIG. The depth dimension when folded can be reduced.

The floor member 400 shown in FIG. 7 is used to keep the box shape of the assembled soundproof booth 100 stable. The floor surface formed by the lower portions of the front member, the right member, the rear member, and the left member to be erected is filled with the floor member 400 with almost no gap. The shape of the floor member is arbitrary as long as it fills the floor surface without gaps, but a quadrangle is preferable. The shape of the upper part of the soundproof booth is stable because the roof member 7 is locked to the front member 1, the right member 3, the rear member 5, and the left member 6. The lower part of the soundproof booth is stabilized by the floor member, so that the overall shape of the soundproof booth 100 is stabilized.

It is important that the soundproof booth is easy to assemble because the plate-shaped members are delivered to the customer in a disjointed state. FIG. 8A shows a hinge attached to a square lumber 405 provided at the end of two plate-shaped members. The shaft material of the insertion / removal hinge 400 is inserted into the hole of the other insertion / removal hinge 401 to form a hinge that can be freely opened and closed. By using this insertion / removal hinge, even one person can easily assemble and disassemble. FIG. 8B shows how the rear member 5 is connected to the right rear member 32 by a hinge. The width of the rear member 5 is 120 cm, and the width of the right rear member 32 is 45 cm.

In the example, when a white noise source was placed inside the soundproof booth and the planned pressure level was measured outside the soundproof booth, an attenuation characteristic of about 30 dB was obtained. Since the member used for carrying out the present invention is mainly a commercially available standard product, it is possible to provide the soundproof booth according to the present invention to the market at a lower cost than the conventional product. Therefore, according to the present invention, it is possible to satisfy the demand of the market with less burden on the customer, which is attributed to the development of the industry.

1 Front member 2 Door 3 Right member 31 Right front member 32 Right rear member 5 Rear member 6 Left member 7 Roof member 71 Roof front member 72 Roof rear member 100 Soundproof booth 102 Strut rod 103 Non-slip 110 Ventilation fan hole 201 Small diameter pipe (2nd Element)
202 Large diameter pipe (first member)
203 Belt (pulling member)
205 Buckle storage 206 DC buckle 261 Locking tooth 262 Roller 263 Release lever 207 Release holding lever 301, 302, 303, 304 Soundproof material 400, 401 Insertion / removal hinge 402 Rear member 403 Right rear member
405 square lumber

Claims (9)

It is a soundproof booth composed of plate-shaped members connected to each other by hinges.
A front member having a door function, a right member and a left member connected to the front member by the hinge, a rear member connected to the right member and the left member by the hinge, and the front member and the hinge. A roof member to be connected is provided, and the right member, the left member, and the roof member are configured to be foldable by connecting two partial members with hinges.
A soundproof booth characterized in that a member other than the rear member among the plate-shaped members is foldable so as to overlap the rear member. The soundproof booth according to claim 1, wherein a soundproof material having a repeating shape with an uneven surface is attached to the inner surface of the plate-shaped member. The soundproof booth according to claim 2, wherein the soundproof booth is provided with a fall prevention device for preventing the soundproof booth from falling in a folded state. The soundproof booth according to claim 3, wherein the fall prevention tool is a stretchable tension rod arranged so as to be stretched between the floor and the ceiling where the soundproof booth is installed on the rear member. The tension rod is a stretchable portion composed of a first member and a second member that fits therein.
One end is connected to the lower end of the second member housed in the first member, and the outside of the first member passes through a guide portion between the upper end of the first member and the lower end of the second member. With the pulling member pulled out to
The soundproof booth according to claim 4, further comprising a locking portion fixed to the first member and locking the pulling member. After assembling the soundproof booth, the roof member is fixed to the right member, the left member, and the rear member, and is in contact with the front member, the right member, the left member, and the lower part of the rear member. The soundproof booth according to any one of claims 2 to 5, wherein the floor members of the above are spread to form a floor surface. 2. Soundproof booth. 2. The soundproof booth described in any of 7 to 7. The surface irregularities of the soundproof material are formed at regular intervals, and the soundproof material is arranged so that the convex portions of the soundproof material facing each other when the soundproof booth is folded are located in the concave portions of the soundproof material facing each other. The soundproof booth according to any one of claims 2 to 8, characterized in that.

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