JP7577041B2 - Work booth installation structure - Google Patents

Description

The present invention relates to an installation structure for a work booth to be installed in a room inside a building.

In recent years, there has been a demand for environments where telework can be done in places other than the workplace, with the aim of reducing the frequency of commuting to the workplace, etc. It is difficult to create a suitable environment for teleworking at home, and in addition, in the work environment of offices, etc., the number of opportunities for online meetings has increased, and meetings at one's desk have become more common. As a result, attention has been focused on partitioning the large indoor space of a building and installing multiple work booths in part of the space using partition walls, and using these work booths for users' telework or individual work in the office, etc.

In this way, when dividing a large room into work booths with partitions and creating spaces inside for small meetings of one or two people or for teleworking, if the partitions are enclosed all the way up to the ceiling, it may become necessary to install expensive ceiling equipment such as smoke and gas detectors, sprinklers, ventilation systems, etc., individually on the ceiling inside the work booth, which means the equipment to be installed on the ceiling and the ceiling structure will be large-scale, making the installation efficiency of the work booth poor.

Generally, in large indoor spaces, the necessary number of ventilation systems, sprinklers, fire alarms, and other disaster prevention equipment are already installed in the ceiling as required by law, and it is desirable to use these as they are for the sake of efficient installation of the work booth.

In this way, in order to use ceiling equipment already installed in the ceiling of a room and eliminate the need for additional installation work or reduce the number of pieces to be installed, it is necessary to ensure that when dividing the room into work booths, each work booth does not interfere with the operation of the ceiling equipment in the shared space.

As an example of this type of technology for setting up a conference room, work area, work booth, etc., inside a room, Patent Document 1 discloses a partition-type semi-open private room device in which private rooms are divided into spaces by four walls, an open-type transom section is provided at the top of the front and back walls, and a sound-absorbing eave-like member is provided at the top of the side walls that protrudes into the interior of the private room.

In addition, in the system shown in Patent Document 2, in two rooms adjacent to each other through a partition, an open transom is formed at the top of the partition, and not only is sound-absorbing material provided on the ceiling surface above the partition, but sound-absorbing material is also provided on the wall facing the open transom to prevent sounds such as conversations from the next room from entering the room.

Patent No. 3940025 Patent No. 5325488

When installing a work booth inside a building like this, it is possible to adopt a layout in which the room is divided into a shared space, with shared ceiling equipment installed on the ceiling and the floor used as an aisle, and the work booth, and in the work booth, a transom with an opening is provided at the top of the partition wall material on the shared space (aisle) side, and the opening of this transom connects the inside of the work booth to the external ceiling equipment.

In such cases, sounds generated in the common space outside the work booth or in other work booths will enter the work booth through the opening, causing a noise problem in which sounds and voices from neighboring booths can be heard. If clearly identifiable sounds enter the work booth, this poses a major problem in that it becomes difficult to concentrate on work within the work booth. Furthermore, if multiple work booths are installed, the sounds from the other work booths will spread to the other work booths through the common space, again causing the problem of being unable to concentrate on work or meetings.

To address this noise problem, sound-absorbing material may be provided on the inside of the booth, but in a booth with limited space, if the sound-absorbing material is not positioned appropriately, it can be difficult to effectively solve the noise problem.

In addition, when providing a protruding eaves-like member on the upper end of the partition wall as in Patent Document 1, a special structure of eaves-like member is required, and the volume of the space inside the booth is reduced by the protrusion. In addition, if the ceiling equipment installed on the ceiling is, for example, a sprinkler, the protruding eaves-like member can cause water sprinkler failure in the event of a fire, which is problematic.

In addition, when using the sound-absorbing structure of Patent Document 2, even if ceiling equipment such as sprinklers is installed in the ceiling, speakers are required to generate masking sounds. Furthermore, in order to obtain a structure that transmits the masking sounds to the underside of the ceiling, the ceiling must be divided in a way that avoids the ceiling equipment, and sound-absorbing ceiling materials with sound-absorbing material must be installed together with sound-transmitting ceiling materials without sound-absorbing material. This not only requires a complex design, but also inevitably requires large-scale construction work on the ceiling of the room.

The present invention was made in consideration of these points, and its purpose is to make it possible to plan ceiling equipment without distinguishing between work booths and shared spaces in a layout that divides the room into a shared space and work booths as described above. In other words, the aim is to create a comfortable sound environment inside the work booth by suppressing the intrusion of noise from outside the booth into the booth using only the structure inside the work booth, while maintaining the structure of the shared ceiling part of the large room where the work booth is installed as it is.

To achieve the above object, in this invention, when a room in a building is divided into a work booth and the remaining common space, an opening that communicates with the common space is formed in the upper part of two adjacent wall materials out of the multiple partition wall materials that make up the work booth, which is rectangular in plan view, and a sound absorbing section with an area equal to or greater than a predetermined amount calculated for the volume of the space within the booth is provided on at least the upper part of the inner surface of the booth of the remaining two wall materials.

Specifically, the first invention is directed to an installation structure in which a work booth that is rectangular in plan view is installed in part of a room in a building where ceiling equipment is provided on the ceiling.

The room is divided into the work booth and a shared space other than the work booth. The work booth is formed into a rectangular shape in a plan view by connecting multiple partition wall materials that stand on the floor of the room, and each partition wall material is placed on or fixed to the floor of the room, and the side end of each partition wall material is fixed to the side end of the adjacent other partition wall material or to the wall of the room. The partition wall materials include two first partition wall materials that reach the height from the floor to the ceiling of the room, and two second partition wall materials that have communication ports at their upper ends or upper sides that connect the inside and outside of the work booth, and one side of the floor of the work booth is 600 to 2000 mm. The two second partition wall materials are arranged adjacent to each other in an L-shape in plan view, and the work booth is installed so that the two second partition wall materials face the shared space, and the operation of the ceiling equipment located in one of the ceilings of the shared space and the work booth reaches the other of the shared space and the work booth through the communication opening of the second partition wall material, and a sound absorbing section is provided on at least the upper part of the inner surface of the work booth of the first partition wall material facing the second partition wall material having the communication opening.

In this first invention, ceiling equipment is already installed on the ceiling of a room in a building, and the room is divided into a rectangular work booth in a plan view and a shared space other than the work booth. The partition wall of the work booth has two first partition wall materials and two second partition wall materials, and the first partition wall material is at a height from the floor to the ceiling of the room, while the second partition wall material has a communication port at its upper end or upper side that connects the inside and outside of the work booth. The work booth is installed so that the two second partition walls with communication openings face the common space, so that the inside of the work booth is connected to the common space through the communication openings of the second partition walls, and when the ceiling equipment located in one of the ceilings of the common space and the work booth is activated, the operation of the ceiling equipment extends to the other of the common space and the work booth through the communication openings. For example, if the ceiling equipment in the common space is a sprinkler, water sprayed from the sprinkler will rain down into the work booth through the communication openings, and the operation of the sprinkler in the work booth will not be hindered. Also, if the ceiling equipment is a ventilation device, the contaminated air in the common space or the work booth will be ventilated by the ventilation device through the communication openings.

In addition, since the second partition wall material faces the common space, noise from the common space will invade the work booth through the communication opening of the second partition wall material, which will generate noise. However, since the second partition wall material faces the first partition wall material and has a sound absorbing section at least on the upper part of the first partition wall material, the sound that invades the work booth from the common space through the communication opening is absorbed and reduced by the sound absorbing section located opposite the communication opening, and is then prevented from being transmitted into the work booth. In other words, by absorbing the noise that invades through the communication opening (sound invading from the common space) by the sound absorbing material located at an appropriate position, the clarity of the sound transmitted to the worker working in a standing or sitting position in the work booth decreases, and although the sound itself can be heard, it becomes difficult to hear the content, and it is expected that the sound will not be distracting and will not interfere with the work. Therefore, even if there is a communication opening that connects to the common space, the inside of the work booth can be kept quiet and comfortable enough to concentrate even if sound is heard.

Furthermore, the above-mentioned sound environment can be created simply by forming communication openings in the two second partition wall materials of the work booth and providing sound absorbing sections at the top of the two first partition wall materials. The ceilings of the common space and work booths can be maintained in the same state as they were in the original room before the work booths were installed, eliminating the need for extensive large-scale construction work to change the structure of the ceilings. This allows the work booths to be easily installed at low cost, which increases installation efficiency.

In addition, since the side of the floor of the work booth is 600 to 2000 mm, the floor area of the work booth is small, making it ideal for meetings, teleworking, and other purposes, and providing a small-space work booth with a favorable internal sound environment.

The second invention is characterized in that in the work booth installation structure of the first invention, the area of the sound absorbing section is set according to at least the volume of the internal space of the work booth and the height position of the sound absorbing section relative to the communication port. This makes it possible to obtain a sound absorbing section with a preferred area.

The third invention is characterized in that in the work booth installation structure of the first or second invention, the sound absorbing section is provided in a range from the upper end of the first partition wall material to a height position half the ceiling height. In this way, by concentrating the sound absorbing material on the upper side of the first partition wall material at a height position half the ceiling height, it becomes possible to provide efficient noise countermeasures for workers who concentrate on work while seated in the work booth.

The fourth invention is characterized in that in the work booth installation structure of any one of the first to third inventions, a sound absorbing section is also provided on the inner surface of the work booth below the communication opening in the second partition wall material.

In this fourth invention, a sound absorbing section is also provided on the inner surface of the second partition material below the communication opening, and this sound absorbing section is located opposite the first partition material. Therefore, even if all of the sound that enters the work booth from the communication opening is not absorbed by the sound absorbing section at the top of the first partition material and some of it is reflected, the reflected intruding sound is absorbed by the sound absorbing section below the communication opening that faces the first partition material. This further reduces the sound that enters the work booth, making it possible to maintain an even quieter, more comfortable sound environment inside the booth that allows you to concentrate on your work.

The fifth invention is characterized in that in the work booth installation structure of any one of the first to fourth inventions, the second partition wall material is provided with an entrance that connects the inside of the work booth to a common space.

In this fifth invention, by providing an entrance in the second partition wall material, the entrance can be provided in a favorable position that has minimal adverse effect on the sound environment inside the work booth.

The sixth invention is characterized in that, in the work booth installation structure of the fifth invention, a door is provided to open and close the entrance connecting the inside of the work booth to the common space, and a sound absorbing section is provided on the inside surface of the door. The sound absorbing section on the inside surface of the door further reduces the sound that penetrates into the work booth, making it possible to maintain an even quieter and more comfortable sound environment inside the booth.

The seventh invention is characterized in that in the work booth installation structure of any one of the first to sixth inventions, the upper end of the second partition wall material is provided with an open transom having an opening within a frame, and the opening of the open transom constitutes a communication port.

In the seventh invention, an open transom is provided at the upper end of the second partition wall material, so that the height of the second partition wall material can be adjusted to match the height of the first partition wall material, resulting in a work booth with partition wall materials of uniform height.

The eighth invention is characterized in that in the work booth installation structure of any one of the first to sixth inventions, the second partition wall material is lower in height than the ceiling of the room, and a communication port is formed in the space between the upper end of the second partition wall material and the ceiling of the room.

In this eighth invention, a communication opening for the work booth can be formed simply by making the second partition material a so-called low partition that is lower than the first partition material, making it easy to form the communication opening.

The ninth invention is characterized in that in the work booth installation structure of any one of the first to eighth inventions, the sound absorbing section is a plurality of sound absorbing panels that are detachably fixed to the inner surface of the work booth of the base material on which the sound absorbing section is provided. The base material on which the sound absorbing section is provided means a partition wall material or a door.

In this ninth invention, the sound absorbing section is a sound absorbing panel that can be attached and detached to the inner surface of the work booth made of the base material, so the position, area, etc. of the sound absorbing section can be easily adjusted by changing the number and position of the sound absorbing panels.

The tenth invention is characterized in that in the work booth installation structure of any one of the first to eighth inventions, the sound absorbing section is a sound absorbing body integrally embedded in the inner surface of the work booth of the base material on which the sound absorbing section is provided. The base material is a partition wall material or a door.

In this tenth invention, the sound absorbing section is made up of a sound absorbing body that is integrally embedded in the base material beforehand, so that simply by installing the work booth using the base material, a sound absorbing structure can be automatically formed inside, making installation easy.

The eleventh invention is a work booth installation structure according to any one of the first to tenth inventions, characterized in that at least the first partition wall material is fixed to the ceiling of the room.

In this eleventh invention, at least the first partition wall material of the work booth is fixed to the ceiling of the room, so that the work booth can be stably installed in the room.

As explained above, according to the present invention, in a layout in which a rectangular work booth in plan view is installed inside a room equipped with ceiling equipment on the ceiling, and separated from the rest of the shared space, the partition wall materials are two first partition wall materials that reach the ceiling and two second partition wall materials that have a communication port at the top that connects the work booth space and the shared space, and the two second partition wall materials are arranged in an L-shape in plan view, and a sound absorbing section is provided at least on the upper part of the inner surface of the work booth of the first partition wall material facing the second partition wall material with the communication port. This allows the structure of the ceiling part of the room in which the work booth is installed to be maintained as it is, eliminating the need for large-scale construction work, while the structure inside the work booth alone prevents noise (sound) from the shared space outside the booth from entering the booth, and reduces the clarity of the sound inside the work booth (making it difficult for the worker to hear the content of the sound), creating a comfortable sound environment inside the work booth for the worker.

FIG. 1 is a plan view showing a schematic diagram of a work booth installed indoors in a first embodiment of the present invention. FIG. 2 is an exploded view showing the work booth with the partition wall material expanded. FIG. 3 is a view corresponding to FIG. 2 and showing a second embodiment. FIG. 4 is a view corresponding to FIG. 2 and showing a third embodiment.

The following describes in detail the embodiments of the present invention with reference to the drawings. The following description of the embodiments is merely exemplary in nature and is in no way intended to limit the present invention, its applications, or its uses.

(Embodiment 1)
In Fig. 1, R denotes a large room in a building where, for example, several to several tens of people can line up desks and chairs to work, and the height of its ceiling C from the floor F (both shown in Fig. 2) is, for example, about 2000 mm to 3000 mm (2850 mm in the illustrated example). A number of ceiling devices A, A, ... are installed in advance at predetermined intervals on the ceiling C of this room R as disaster prevention equipment and ventilation equipment. The ceiling devices A are installed in the required number based on laws and regulations, and are, for example, detectors for smoke and gas, sprinklers, ventilation equipment, etc., and Fig. 1 shows a sprinkler as an example.

In this way, in room R, where ceiling devices A, A, ... as disaster prevention equipment or ventilation equipment are installed on the ceiling C, a work area, for example, rectangular in plan view, is partitioned in part, not shown, and this partitioning of the work area divides room R into the work area and the rest of the common area. Although not shown, the common area contains multiple desks, chairs, table sets, sofas, etc. for shared use.

The work area is separated from the common area by a soundproof partition wall (not shown) that extends from the floor F to the ceiling C, and inside the work area, as shown in FIG. 1, six work booths B, B, ... each rectangular in plan view, are installed. In the following explanation, the six work booths B, B, ... are numbered as the first to sixth work booths, and in FIG. 1, the numbers of the first to sixth work booths B, B, ... are indicated by circled numbers.

The six work booths B, B, ... have the same shape in plan view and the same floor area. These work booths B, B, ... are divided into groups of three, for example, the first to third work booths B, B, ... and the fourth to sixth work booths B, B, ..., and the three work booths B, B, ... are lined up in a straight line to form two parallel rows, with a gap between the work booths B, B, ... in both rows. As a result, the work area divided into room R is divided into the two rows of six work booths B, B, ... and a shared space S, which is the space other than the work booths B, B, .... The shared space S is made up of the space between the two rows of work booths B, B, ... and the spaces on both sides of each row in the row direction, and the floor F is used as an aisle.

The partition wall of the work area is also formed with an entrance (not shown) that can be opened and closed by a door, and workers who use the work booth B to work can enter and exit from the common area to the common space S within the work area through this entrance. Furthermore, a communication port (not shown) is formed at the top of the partition wall of the work area, connecting the inside of the work area with the common area.

In addition, in the present invention, it is not necessary to divide room R into a work area and a common area and install work booth B in the work area; work booth B can be installed anywhere inside room R.

In the example shown in FIG. 1, some of the ceiling equipment A, A, ... already installed throughout room R are placed on the ceiling C of the shared space S. Since the ceiling equipment A, A, ... is installed in advance on the ceiling C of room R, depending on the layout of the work booths B, B, ..., it may also be located on the ceiling C inside the booths B.

Each work booth B has a rectangular floor with one side measuring 600 to 2000 mm. With a floor side of this length, the floor area of the work booth B is small, making it ideal for use in small meetings, telework, and other purposes. In the illustrated example, the work booth B has a width of 1500 mm and a depth of 1500 mm.

Each work booth B is formed into a rectangular shape in a plan view by connecting four (or more) partition wall materials 1, 1, 2, 2 that are fixed and stand on the floor F of the room R. In each row of three work booths B, B, ..., the same partition wall material 1 that serves as the partition between adjacent work booths B, B is shared.

Each partition wall material 1, 2 is a vertically long, narrow plate (see FIG. 2) and is formed, for example, from a steel panel material which is a non-combustible material. The lower end of each partition wall material 1, 2 is fixed (or may simply be placed) to the floor F of the room R, and the side ends are fixed to the side ends of the other adjacent partition wall materials 1, 2. When the work booth B is installed near a partition wall of the work area or next to the wall of the room R, that partition wall or the wall of the room R may be used, and the two adjacent partition wall materials 1, 2 are fixed at their side ends to the wall of the room R.

The partition wall materials 1, 2 of each work booth B are composed of four sheets, two first partition wall materials 1,1 and two second partition wall materials 2,2, or three first partition wall materials 1,1,... and one second partition wall material 2. Both the first and second partition wall materials 1,2 have a height that reaches from the floor F to the ceiling C of the room R, and the upper end of each partition wall material 1,2 is fixed to the ceiling C.

In general, a structure in which a wall is firmly fixed to the ceiling and floor is considered to be a structure with a partition wall, and the surface of the wall is required to be non-flammable. On the other hand, a wall that is fixed only to the floor or wall of a room, or placed on the floor, is considered to be furniture, and its surface may be flame-retardant rather than non-flammable, and in some areas it may be equipment that does not require consideration of non-flammability or flame retardancy.

In this embodiment, the partition wall materials 1 and 2 are fixed to the ceiling C of the room R and are considered to be structures, so steel, a non-combustible material, is used for the partition wall materials 1 and 2. Furthermore, the partition wall materials 1 and 2 only need to be secured to the ceiling C to the minimum extent necessary to prevent them from collapsing. This eliminates the need for reinforcement work on the ceiling C or the back side of the ceiling C.

In this way, the four partition wall materials 1, 2 of each work booth B are fixed to the ceiling C of the room R, so that the work booths B, B, ... are stably installed inside the room R.

The present invention is characterized by the installation structure of the first, third, fourth and sixth work booths B, B, ... located at both ends of the row of three work booths B, B, ... in each row. As shown in Figure 1, the four work booths B, B, ... are located at both the top and bottom ends of the work booths B, B, ... in each row on the left and right sides of the figure. These work booths B, B, ... are composed of four panels: two first partition wall materials 1, 1 and two second partition wall materials 2, 2.

Figure 2 shows the first and sixth work booths B, B located at one end of each row (the bottom end of the left row and the top end of the right row in Figure 1) with the four partition wall materials 1, 1, 2, 2 unfolded, as seen from inside the work booth B. The third and fourth work booths B, B located at the other end of each row (the top end of the left row and the bottom end of the right row in Figure 1) are also not shown, but are similar to the first and sixth work booths B, B at one end of each row, differing only in that they are reversed left and right in Figure 2.

Continuing the explanation based on the first and sixth work booths B, B, the two second partition wall materials 2, 2 face the shared space S outside the work booth B. The shared space S facing the second partition wall material 2 corresponds not only to the space between the two rows of work booths B, B, ... but also to the spaces on both sides of each row in the row direction (both the top and bottom in FIG. 1). These second partition wall materials 2, 2 are fixed to the ceiling C at their upper ends, like the two first partition wall materials 1, 1, but at their upper ends, a communication opening 4 is provided that connects the internal space of the work booth B with the shared space S. Specifically, an open transom 5 having an opening 5b in a rectangular frame 5a is integrally provided as a part of the upper end of each second partition wall material 2, and the above-mentioned communication opening 4 is constituted by the opening 5b of the open transom 5. Generally, a transom has an opening formed within a frame, and the opening is covered with a partition plate such as acrylic or glass, a louver, etc., but in the present invention, an opening is used that is open as it is without a partition plate or louver. The height of the opening 5b (communication opening 4) of the open transom 5 is preferably 500 to 700 mm, and its left and right width is preferably close to the entire width of the second partition wall material 2, as long as it fulfills the function required from the viewpoint of disaster prevention and ventilation when the ceiling device A is operated. The communication opening formed in the upper part of the partition wall of the work area also has the same function as the communication opening 4 in the upper part of the second partition wall material 2.

The two first partition wall materials 1, 1 are arranged adjacent to each other, and are arranged in an L-shape in plan view. The two second partition wall materials 2, 2 are also arranged adjacent to each other, and are arranged in an L-shape in plan view. That is, in the work booth B, one first partition wall material 1 is arranged to face one second partition wall material 2, and the other first partition wall material 1 is arranged to face the other second partition wall material 2.

One of the two second partition wall materials 2, 2 faces the shared space S between the two rows of work booths B, B, ..., and the other faces the shared space S of the space next to each row of work booths B, B, .... In this way, each of the first and sixth work booths B, B is installed so that the two second partition wall materials 2, 2 both face the shared space S, and the two communication openings 4, 4 (openings 5b of the open transom 5) face the ceiling equipment A, A, ... in the ceiling part C of the shared space S, so that the operation of the ceiling equipment A, A, ... in the shared space S reaches into the work booth B through the communication openings 4, 4 of the second partition wall materials 2, 2. That is, if ceiling equipment A is a sprinkler, water from the sprinkler is released into work booth B through the communication ports 4, 4; if it is a ventilation system, air from the ventilation system flows into work booth B through the communication ports 4, 4; and if ceiling equipment A is a detector, smoke, gas, etc. in work booth B reaches the detector through the communication port 4.

Although not shown, even when ceiling equipment A is located in the ceiling section C of each work booth B, the operation of the ceiling equipment A reaches the shared space S outside the work booth B through the communication openings 4, 4 of the second partition wall materials 2, 2. In other words, the work booth B is installed so that the operation of the ceiling equipment A located in the shared space S facing the two second partition wall materials 2, 2 and in one of the ceiling sections C in the work booth B reaches the shared space S and the other inside the work booth B through the communication openings 4, 4 of the second partition wall materials 2, 2.

Furthermore, one of the second partition wall materials 2 facing the shared space S in the space between the two rows of the work booths B, B, ... is provided with an entrance 15 that connects the inside of the work booth B to the shared space S, and workers working in the work booth B can enter the work booth B from the shared space S or exit from the work booth B to the shared space S through this entrance 15. This entrance 15 is opened and closed by an entrance door 16.

In FIG. 1, 21 denotes a desk installed in each work booth B on the opposite side to the entrance 15 (the inner back side of the work booth B), and 22 denotes a chair.

The communication opening formed in the upper part of the partition wall of the work area and the communication opening 4 in the upper part of the second partition wall material 2 of each work booth B are arranged so as not to face each other.

In this way, two first partition wall materials 1, 1 are arranged facing each other on the second partition wall materials 2, 2, which have a communication opening 4 at their upper ends. Each of these first partition wall materials 1 has a sound absorbing section 10 provided at least on the upper part of the inner surface of the work booth B. The sound absorbing section 10 is provided within a range of, for example, 800 mm or more height downward from the upper end of the first partition wall material 1 (ceiling part C of room R) and across the entire left-right width of the first partition wall material 1. By lowering the position of the bottom end of this sound absorbing section 10, its area can be expanded.

Specifically, the sound absorbing section 10 is made up of a number of sound absorbing panels 11, 11, ... arranged side by side. Although not shown, each sound absorbing panel 11 is a rectangular panel with a sound absorbing material attached to its surface, and has a magnet (magnetic pole) on its back side, which removably fixes the panel to the inner surface of the first partition wall material 1 made of steel as the base material by the magnetism of the magnet. Note that hook-and-loop fasteners, hooks, double-sided tape, etc. may be used instead of magnets, and in the same manner, the sound absorbing panel 11 can be removably fixed to the inner surface of the first partition wall material 1 (base material). If the purpose is to use the work booth B for a long period of time, the above-mentioned double-sided tape or adhesive construction may be used, although there is no advantage to making it removable.

Each sound-absorbing panel 11 is, for example, a square of 300 mm, 450 mm, or 600 mm. In FIG. 2, 12 sound-absorbing panels 11, 11, ... of 450 mm square are fixed to the inner surface of the first partition wall material 1 in a row of three panels horizontally and four columns vertically. The number and arrangement of the sound-absorbing panels 11 can be changed according to the space on the inner surface of the first partition wall material 1. For example, the 300 mm square sound-absorbing panels 11 may be arranged in four to six panels horizontally and two to four columns vertically, the 450 mm square sound-absorbing panels 11 may be arranged in three to four panels horizontally and one to three columns vertically, and the 600 mm square sound-absorbing panels 11 may be arranged in two to three panels horizontally and one to two columns vertically. For example, it is preferable to use the product name "Offtone Magnet Panel N" manufactured by Daiken Corporation as the sound-absorbing panel 11 of 450 mm square.

The area of the sound absorbing part 10 is preferably set according to at least the volume of the internal space of the work booth B and the height position of the sound absorbing part 10 relative to the communication opening 4. When providing the sound absorbing part 10 with an area equal to or greater than the predetermined amount calculated for the volume of the space in the work booth B, for example, per 6.5 ^m3 , the sound absorbing part 10 may be provided with a sound absorbing panel 11 having a sound absorbing performance with a reverberation chamber sound absorption coefficient of 0.8 or more in the 500 Hz band and a reverberation chamber sound absorption coefficient of 0.9 or more in the 1 kHz band or more, of 1.2 to 3.6 ^m2 . The position of the sound absorbing part 10 when it is installed depends on the work environment in the work booth B. For example, when a desk 21 is installed and work is performed in a seated position on a chair 22, the opposite surface of the communication opening 4 is the most effective when installing the sound absorbing panel 11 of the same area. For example, the most effective arrangement is from the ceiling surface of the upper end of the first partition wall material 1, which is the opposite surface of the communication opening 4, to a height position of at least 1 m from the upper surface of the floor part F. The next most effective height is up to a height of 1 m from the floor surface below the communication opening 4 of the second partition wall material 2, as shown in the later-described embodiment 2 (see FIG. 3) and embodiment 3 (see FIG. 4). The next most effective height is a height not reaching 1 m from the floor surface of the first partition wall material 1 which faces the communication opening 4, and the next most effective height is a height not reaching 1 m from the floor surface of the second partition wall material 2. When an opening such as an entrance/exit 15 is provided in the work booth B, it is difficult to provide the sound absorbing section 10 at or around the opening, but it is also possible to provide the sound absorbing section 10 inside the booth B using an opening/closing member (entrance/exit door 16) which opens and closes the opening as a base material.

On the other hand, the second and fifth work booths B, B, located in the middle of the rows of three work booths B, B, ..., are composed of four panels: three first partition wall materials 1, 1, ... and one second partition wall material 2. Only the one second partition wall material 2 faces the shared space S between the two rows of work booths B, B, ..., and although not shown, an open transom 5 is provided only at the upper end of the second partition wall material 2, and its opening 5b serves as a communication port 4, connecting the inside of the work booths B2, B5 to the shared space S (the space between the two rows of work booths B, B, ...).

Facing the second partition wall material 2 with the open transom 5, a single first partition wall material 1 is located on the opposite side of the shared space S in the space between the rows of work booths B, B, ... and has a sound absorbing section 10 (not shown) removably attached to the upper part of its inner surface, and this sound absorbing section 10 is made up of a number of sound absorbing panels 11, 11, ... as described above.

Therefore, in this embodiment, the room R in the building is divided into, for example, six work booths B, B, ... arranged in two rows, and the remaining shared space S. The first, third, fourth and sixth work booths B, B, ... located at the end of each row are formed, for example, by connecting two first partition wall materials 1, 1 and two second partition wall materials 2, 2 to form a rectangle in a plan view, and a communication port 4 (opening 5b of the open transom 5) that communicates the space inside the work booth B with the shared space S is provided at the upper end of each of the two second partition wall materials 2, 2 facing the shared space S. Therefore, the inside of the work booth B is connected to the shared space S through the communication ports 4, 4 of the two second partition wall materials 2, 2, and when the above-mentioned ceiling equipment A, A, ... located on the ceiling part C of the shared space S is operated, its operation acts on the inside of the work booth B through the communication ports 4, 4. For example, if ceiling equipment A is a sprinkler, water sprayed from the sprinkler will also fall into work booth B through the communication ports 4, 4, and the operation of the sprinkler within work booth B will not be hindered, and the effect of the fire extinguishing operation will be ensured within work booth B.

In addition, even if the ceiling equipment A is located in the ceiling portion C of each work booth B, the operation of the ceiling equipment A extends to the shared space S outside the work booth B through the communication openings 4, 4 of the second partition wall materials 2, 2 in the same manner as described above.

In this way, by simply forming the communication openings 4, 4 through the openings 5b of the transoms 5 in the two second partition wall materials 2, 2 facing the shared space S of the work booth B, the operation of the ceiling equipment A located in the ceiling part C of the shared space S can be used in the work booth B, or the operation of the ceiling equipment A located in the ceiling part C of the work booth B can be used in the shared space S. Therefore, the shared space S and the ceiling part C of the work booth B can be maintained in the original state of the ceiling part C in the original room R before the work booths B, B, ... were partitioned and installed in the room R, and large-scale construction work to change the structure of the ceiling part C is not required at all. In particular, it is not necessary to separately install expensive ventilation equipment or disaster prevention equipment (sprinklers, fire alarms) as the ceiling equipment A. This makes it possible to easily install the work booths B, B, ... at low cost, thereby increasing the installation efficiency.

The two second partition wall materials 2, 2 face the common space S, and the second partition wall material 2 has a communication opening 4, which causes noise such as the sound of people talking in the common space S to infiltrate into the work booth B through the communication opening 4. However, in the work booth B, the two second partition wall materials 2, 2 face the corresponding first partition wall materials 1, 1, and the sound absorbing section 10 is provided at least on the upper part of the first partition wall material 1 at the opposing position. Therefore, the sound that infiltrates into the work booth B from the common space S through the communication opening 4 is absorbed and reduced by the sound absorbing section 10 at the position opposite the communication opening 4, and is suppressed from being transmitted into the work booth B thereafter, so the clarity of the sound heard in the work booth B decreases. In other words, for the workers working in the work booth B, if the sound is heard clearly, they will be distracted by the content and find it difficult to concentrate on their work, whereas if the sound heard is unclear, they will recognize that there is sound, but will not be distracted by the content. In this way, inside work booth B, the clarity of the sound outside work booth B is reduced, maintaining a comfortable sound environment that allows for concentration.

Specifically, the communication openings 4, 4 at the top of the two second partition wall materials 2, 2 of the work booth B face the shared space S in the work area and open toward said shared space S, so that in a certain work booth B, noise generated in the shared space S of the working area and noise generated in other work booths B that is absorbed and reduced in size within said other work booths B and then leaks into the shared space S in the work area through the communication opening 4 provided near the ceiling C enter said specific work booth B through the communication opening 4 provided near the ceiling C. If a communication opening that connects the inside and outside of the work area is opened in the upper part of the partition wall of the work area, noise from the shared area enters the shared space S in the work area through said communication opening, and further enters from this shared space S into said work booth B through the communication opening 4 located near the ceiling C of the work booth B. Even if these various types of noises enter work booth B, the clarity of the noise (voice) is reduced by the sound absorbing section 10 within work booth B, maintaining a comfortable sound environment within work booth B where workers can concentrate.

Furthermore, room R is divided into a work area where work booths B, B, ... are installed, and a common area, and the work area is separated from the common area by a partition wall with soundproofing function. Therefore, if the partition wall is structured so that there is no communication opening at the top, the voice (noise) from the common area will not directly enter each work booth B, and the voice that enters directly into the work booths B, B, ... will be noise only for the work area, and the noise entering work booth B can be kept to a minimum.

In this way, in the work booth B, the above-mentioned sound environment can be created simply by providing a sound absorbing section 10 on the upper part of the two first partition wall materials 1, 1 that face the two second partition wall materials 2, 2, each of which has a communication port 4 at its upper end. This results in a small-space work booth B with an optimal sound environment inside.

The sound absorbing section 10 is composed of a number of sound absorbing panels 11, 11, ... that are removably fixed to the first partition wall material 1, and the number and position of the sound absorbing panels 11, 11, ... can be easily changed by attaching and detaching them, making it easy to adjust the position, area, etc. of the sound absorbing section 10.

In addition, if the entrance 15 for entering and exiting the work booth B from the shared space S were formed in the first partition wall material 1 having the sound absorbing section 10, the space required for the sound absorbing section 10 would be affected by the size required for the entrance 15, making it difficult to secure a large space for the sound absorbing section 10. In contrast, in this embodiment, the entrance 15 is provided in the second partition wall material 2 having the communication opening 4, so a large space can be secured for the sound absorbing section 10, enhancing the sound absorption effect. Therefore, the entrance 15 is provided in a favorable position that has little adverse effect on the sound environment inside the work booth B.

Furthermore, an open transom 5 having an opening 5b that serves as a communication opening 4 is provided at the upper end of the second partition wall material 2, so that the height of the second partition wall material 2 can be aligned with the height of the ceiling C to match the height of the first partition wall material 1, thereby obtaining work booths B, B, ... in which the heights of the partition wall materials 1, 2 are uniform.

(Embodiment 2)
Fig. 3 shows a second embodiment of the present invention. In the following embodiments, the same parts as those in Fig. 1 and Fig. 2 are denoted by the same reference numerals, and detailed description thereof will be omitted.

This embodiment is a modification of the work booth installation structure of the first embodiment, and in the two second partition wall materials 2, 2 having an open transom 5, an opening lower sound absorbing section 12 is also provided on the inner surface of the second partition wall material 2 below the transom opening 5. This sound absorbing section 12 is structured by arranging multiple sound absorbing panels 11, 11, ... that can be attached and detached to the second partition wall material 2, similar to the sound absorbing section 10 of the first partition wall material 1, but the number of sound absorbing panels 11 is less than that of the sound absorbing section 10 of the first partition wall material 1, and the area is relatively small. The opening lower sound absorbing section 12 is, for example, fixed to the inner surface of the second partition wall material 2 with three sound absorbing panels 11, 11, ... of 450 mm square arranged in a row horizontally and vertically. The other configuration is the same as that of the first embodiment.

Therefore, this embodiment also provides the same effect as embodiment 1. In particular, in this embodiment, not only the sound absorbing section 10 on the inner surface of the first partition wall material 1, but also the sound absorbing section 12 is additionally provided on the inner surface of the second partition wall material 2 below the opening 5b (communication opening 4) of the open transom 5, and this sound absorbing section 12 is located opposite the first partition wall material 1. Therefore, even if the sound that enters the work booth B from the opening 5b (communication opening 4) of the open transom 5 is not absorbed by the sound absorbing section 10 at the top of the first partition wall material 1 and is partially reflected, the reflected intruding sound is absorbed by the sound absorbing section 12 below the open transom 5 facing the first partition wall material 1. This makes the overall sound that enters the inside of the work booth B even smaller, further reducing the clarity of the sound heard in the work booth B, and the advantage of being able to maintain a more comfortable sound environment in which it is easier to work inside the booth B is obtained.

(Embodiment 3)
FIG. 4 shows a third embodiment in which the open transom 5 located at the upper end of the second partition wall material 2 is eliminated.

In this embodiment, no open transom 5 is provided at the upper end of the second partition wall material 2, and the second partition wall material 2 is configured as a so-called low partition, with the height position of the upper end being approximately 500 to 700 mm lower than the ceiling height. This creates a space (gap) between the upper end of the second partition wall material 2 and the ceiling part C of the room R, and this space creates a communication opening 4 with a height of 500 to 700 mm on the upper side of the second partition wall material. The rest of the configuration is the same as in embodiment 1.

Therefore, this embodiment can achieve the same effect as the first embodiment. Also, in this embodiment, the communication opening 4 for the work booth can be formed simply by making the second partition wall material 2 a low partition that is lower than the first partition wall material 1, making it easier to form the communication opening 4.

In addition, in this embodiment 3, as in embodiment 2, a sound absorbing section 12 below the opening may be provided on the inner surface of the second partition wall material 2 below the communication opening 4.

Other Embodiments
The present invention is not limited to the above-mentioned embodiments, and includes various modified embodiments. For example, in the above-mentioned embodiments, the partition wall materials 1 and 2 are made of a non-combustible material such as steel, but in the case of a structure in which the partition wall materials 1 and 2 are not fixed to the ceiling C, the partition wall materials 1 and 2 are regarded as furniture, and therefore can be made of a material other than a non-combustible material.

In addition, in each of the above embodiments, the sound absorbing section 10, 12 is composed of a plurality of sound absorbing panels 11, 11, ... that are attached and detached by suction to the partition wall material 1, 2, but it may also be composed of a sound absorbing body that is integrally embedded in the partition wall material 1, 2 (base material).

In addition, within each work booth B, for example in the partition wall material below the desk 21, an acoustic device that emits background noise or masking sound into the work booth B can be installed, which is expected to further reduce the clarity of sound within the work booth B and make the sound environment even more suitable.

The number and layout of the work booths B installed in room R may be changed, as long as they are installed so that room R is divided into work booths B and the other shared space S.

This invention is extremely useful and has a high industrial applicability because it does not require ceiling construction or complicated ceiling construction design when installing a work booth with a good sound environment in a small space within a large room, and can be installed using existing ceiling equipment as is, making installation highly efficient.

R: Room C: Ceiling section F: Floor section A: Ceiling equipment B: Work booth S: Common space 1: First partition wall material 2: Second partition wall material 4: Communication opening 5: Opening transom 5b: Opening 10: Sound absorbing section 11: Sound absorbing panel 12: Sound absorbing section below the opening 15: Entrance 16: Access door

Claims (11)

An installation structure in which a work booth having a rectangular shape in plan view is installed in a part of a room in a building where a ceiling device is provided on a ceiling portion,
The room is divided into the work booth and a common space other than the work booth,
The work booth is formed into a rectangular shape in a plan view by connecting a plurality of partition wall materials standing on the floor of the room,
Each partition wall material is placed on or fixed to the floor of the room, and a side end of each partition wall material is fixed to a side end of another adjacent partition wall material or to a wall of the room;
The partition wall material includes two first partition wall materials having a height extending from the floor to the ceiling of the room, and two second partition wall materials each having a communication port at an upper end or upper side thereof for communicating between the inside and the outside of the work booth;
The floor of the work booth has a side length of 600 to 2000 mm.
The two second partition wall materials are arranged adjacent to each other in an L-shape in a plan view,
the work booth is installed such that the two second partition wall materials face the common space, and the operation of the ceiling equipment located in one of the ceiling parts of the common space and the work booth reaches the other of the common space and the work booth through the communication port of the second partition wall material;
A work booth installation structure, characterized in that a sound absorbing section is provided on at least an upper portion of an inner surface of the work booth of a first partition material facing a second partition material having a communication opening. In the work booth installation structure of claim 1,
A work booth installation structure characterized in that the area of the sound absorbing portion is set in accordance with at least the volume of the internal space of the work booth and the height position of the sound absorbing portion relative to the communication port. In the work booth installation structure according to claim 1 or 2,
A work booth installation structure, characterized in that the sound absorbing section is provided in a range from the upper end of the first partition wall material to a height position half the ceiling height. In any one of claims 1 to 3, the work booth installation structure comprises:
A work booth installation structure, characterized in that a sound absorbing section is also provided on the inner surface of the work booth below the communication opening in the second partition wall material. In any one of claims 1 to 4, the work booth installation structure comprises:
A work booth installation structure characterized in that the second partition wall material is provided with an entrance/exit connecting the inside of the work booth to a common space. In the work booth installation structure of claim 5,
A work booth installation structure characterized in that a door is provided for opening and closing an entranceway connecting the inside of the work booth with a common space, and a sound absorbing part is provided on the inner side of the door of the work booth. In any one of claims 1 to 6, the work booth installation structure comprises:
A work booth installation structure characterized in that an open transom having an opening within a frame is provided at the upper end of the second partition wall material, and the opening between the open transoms forms a communication port. In any one of claims 1 to 6, the work booth installation structure comprises:
A work booth installation structure characterized in that the second partition wall material is lower in height than the ceiling of the room, and a communication port is formed in the space between the upper end of the second partition wall material and the ceiling of the room. In the work booth installation structure according to any one of claims 1 to 8,
A work booth installation structure, characterized in that the sound absorbing portion is a plurality of sound absorbing panels that are detachably fixed to the inner surface of the work booth of the base material on which the sound absorbing portion is provided. In the work booth installation structure according to any one of claims 1 to 8,
A work booth installation structure, characterized in that the sound absorbing portion is a sound absorbing body integrally embedded in the inner surface of the work booth of the base material on which the sound absorbing portion is provided. In the work booth installation structure according to any one of claims 1 to 10,
A work booth installation structure, characterized in that at least a first partition wall material is fixed to a ceiling portion of a room.

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