Furniture system

Abstract

To enable arrangement of furniture to be easily and flexibly shifted according to a mode of operation.SOLUTION: A furniture system comprises a first chair, a second chair, and a workbench. At least one of the first and second chairs is a conversion chair. The conversion chair enables conversion between a first position in which a seating direction is a first direction of heading for the workbench and a second position in which the seating direction is a second direction opposite to the first direction, and enables conversion of a backrest position.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to furniture systems. [Background technology]

[0002] Patent Document 1 discloses a technology that provides a space for workers to perform work such as office work. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2022-68537 Summary of the Invention [Problem to be solved by the invention]

[0004] In recent years, so-called shared offices and free address offices have become widespread, and there is a need for office environments that can accommodate a variety of work styles. However, the technology described in Patent Document 1 requires furniture to be moved, such as by lifting it, when changing the layout, and this may not be able to meet such needs.

[0005] The present disclosure aims to provide a furniture system that allows the arrangement of furniture in a space where a worker performs work to be changed more easily and flexibly depending on the type of work. [Means for solving the problem]

[0006] In order to solve the above problems, a furniture system according to one embodiment of the present disclosure comprises a first chair, a second chair, and a workbench located between the first chair and the second chair in a plan view, and at least one of the first chair and the second chair is a convertible chair whose backrest position can be converted between a first position in which the sitting direction is a first direction toward the workbench, and a second position in which the sitting direction is a second direction opposite to the first direction. [Effects of the Invention]

[0007] According to one aspect of the present disclosure, the arrangement of furniture in a space where a worker performs work can be easily and flexibly changed depending on the type of work. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic plan view of a furniture system according to a first embodiment of the present disclosure. [Figure 2] FIG. 1 is a schematic perspective view of an office space according to a first embodiment of the present disclosure. [Figure 3] 1 is a schematic perspective view of a furniture system according to a first embodiment of the present disclosure. FIG. [Figure 4] 1 is a schematic side view of a convertible chair according to a first embodiment of the present disclosure. [Figure 5] FIG. 10 is a schematic front view of a convertible chair according to a second embodiment of the present disclosure. [Figure 6] FIG. 10 is a schematic front view of a convertible chair according to a third embodiment of the present disclosure. [Figure 7] FIG. 10 is a schematic side view of a convertible chair according to a third embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Embodiment 1] An embodiment of the present disclosure will be described in detail below.

[0010] <Office space> In this embodiment, a furniture system will be described as an example that is placed in a work space such as an office where multiple workers work. However, the furniture system according to the present disclosure is not limited to this, and may be placed in a store such as a restaurant that requires chairs where customers can sit and tables that can be used by customers seated in those chairs.

[0011] 2 is a schematic perspective view showing a portion of the office space WS according to this embodiment. As shown in FIG. 2, the office space WS may be equipped with chairs, tables, desks, etc. for multiple workers to work in.

[0012] <Furniture System Overview> In the office space WS according to this embodiment, a furniture system 1 is constructed for workers in the office space WS to perform work, etc. The furniture system 1 according to this embodiment will be described with reference to Figs. 1 and 3.

[0013] FIG. 1 is a schematic plan view of a furniture system 1 according to this embodiment, and FIG. 3 is a schematic perspective view of the furniture system 1 according to this embodiment. In particular, FIGS. 1 and 3 show an extracted portion of the furniture system 1 according to this embodiment. FIG. 1 also shows a schematic plan view PL1 showing the furniture system 1 when the backrest 31 of a chair 11 (described below) is in a first position, and a schematic plan view PL2 showing the furniture system 1 when the backrest 31 of the chair 11 is in a second position. FIG. 3 also shows a schematic perspective view PA1 showing the furniture system 1 when the backrest 31 of the chair 11 is in the first position, and a schematic perspective view PA2 showing the furniture system 1 when the backrest 31 of the chair 11 is in the second position.

[0014] <Chairs and tables> The furniture system 1 includes a chair 11 which is a first chair, a chair 12 which is a second chair, a table 21 which is a first movable table, and a table 22 which is a second movable table.

[0015] The chair 11 has a backrest 31, a seat 32, and a grip 33. The backrest 31 is held above the seat 32 and toward the rear of the chair 11 in the seating direction by a link mechanism described later. The seat 32 has a seat surface 34 on its upper surface. The chair 11 supports a worker seated on the chair 11 with the backrest 31 and the seat surface 34 of the seat 32. The grip 33 is located, for example, at the end of the backrest 31 and has a structure that can be grasped by a worker or the like. The grip 33 is grasped to change the position of the backrest, as described later. In this embodiment, the grip 33 has a ring shape that protrudes from the side of the chair 11, as shown in FIG. 3, for example, which allows the worker or the like to grasp the grip 33. However, in this embodiment, the shape of the grip portion 33 is not limited to this, and for example, it may have a recess in part that allows it to be gripped by a worker or the like, in other words, it may not have an opening. The chair 11 may have an armrest 35 at one end of the seat portion 32 in a direction perpendicular to the seating direction of the chair 11. The armrest 35 may function as a partition of the furniture system 1. The chair 12 has the same configuration as the chair 11 except for its position and whether the backrest 31, which will be described later, can be moved.

[0016] Table 21 has a top plate 41 and legs 42 that support top plate 41 on the floor. Top plate 41 functions as a workbench on which items necessary for work can be placed by a worker seated on chair 11 or chair 12. Table 22 has the same configuration as table 21 except for the arrangement position.

[0017] Tables 21 and 22 are movable tables that can move on the floor surface on which they are installed, in other words, they are not fixed to the floor surface and can be repositioned, for example, within the office space WS. This allows furniture system 1 to change the positions of tables 21 and 22 within the office space WS, thereby improving the comfort of workers and simplifying storage of tables 21 and 22. For example, casters may be attached to legs 42 of tables 21 and 22.

[0018] Table 21 is located between chair 11 and chair 12 in a plan view. In other words, top plate 41 of table 21 functions as a work table located between chair 11 and chair 12 in a plan view. Table 22 is located on the opposite side of table 21 with chair 11 in between in a plan view. In other words, top plate 41 of table 22 functions as a second work table located on the opposite side of table 21 with chair 11 in between in a plan view.

[0019] Table 21 and table 22 are separate from chair 11 and chair 12. In other words, table top 41 of table 21 and table top 41 of table 22 are separate from chair 11 and chair 12. In this disclosure, "two members are separate" means that there is no mechanism connecting the two members and they can be separated from each other. Furthermore, even if two members are in a relationship in which they can be brought into contact with each other, they are included in the concept of "separate" as long as they are in a relationship in which they can be separated from each other without a connecting mechanism. Therefore, furniture system 1 does not require members, etc., to join chairs 11 and 12 to tables 21 and 22, making the configuration simpler.

[0020] <Convertible chair> At least one of chair 11 and chair 12 is a convertible chair. A convertible chair is a chair in which the position of the backrest 31 can be converted between a first position and a second position, which will be described later, by a mechanism, which will be described later. In particular, in this embodiment, the case in which chair 11 is a convertible chair will be described as an example. Further details of chair 11, which is a convertible chair, will be described in detail with further reference to FIG. 4.

[0021] FIG. 4 is a schematic side view of chair 11, which is a convertible chair. In this disclosure, the side of a chair, including chair 11, refers to the surface located on the end side in a direction perpendicular to the seating direction of the chair. Therefore, in this disclosure, a side view of the chair refers to viewing the chair in a direction perpendicular to the seating direction of the chair. In particular, FIG. 4 is a view of chair 11 as seen from the armrest 35 side. Therefore, in FIG. 4, parts located further back than the armrest 35 are shown with dotted lines. FIG. 4 shows backrest 31 as backrest 31A in a first position (to be described later) and backrest 31B in a second position (to be described later). In FIG. 4, backrest 31B, gripping portion 33 formed on backrest 31B, and link mechanism 36 (to be described later) connected to backrest 31B are shown with two-dot chain lines.

[0022] Assume that the backrest 31 of the chair 11 is in a first position (backrest 31A). In this case, the backrest 31A is located above the seat 32, on the opposite side from the table 21. Therefore, when the backrest 31 of the chair 11 is in the first position, the sitting direction of the chair 11 is a first direction DA1, which is the direction toward the table 21, as shown in the schematic plan view PL1 of FIG. 1. In this disclosure, the "direction toward the table 21" can be rephrased as the "direction toward the top board 41 of the table 21."

[0023] The chair 11 may have a link mechanism 36. The link mechanism 36 is rotatably connected to each of the backrest 31 and the seat 32, and supports the backrest 31 relative to the seat 32. In this case, the backrest 31 can be moved relative to the seat surface 34 of the seat 32 by rotating the link mechanism 36 around the seat 32 side as a fulcrum.

[0024] For example, suppose a worker or the like grasps grip portion 33 of backrest 31A and pulls backrest 31A toward table 21, in other words, in first direction DA1. In this case, backrest 31A moves via link mechanism 36, for example, over seat surface 34, and moves toward table 21 relative to seat portion 32. As a result, backrest 31 of chair 11 moves to a second position above seat portion 32, on the table 21 side, and becomes backrest 31B. When backrest 31 of chair 11 is in the second position, as shown in schematic plan view PL2 of FIG. 1, the sitting direction of chair 11 is opposite the direction toward table 21, in other words, a second direction DA2 opposite to first direction DA1.

[0025] In this embodiment, as described above, table 22 is located on the opposite side of chair 11 from table 21 in a plan view. Therefore, as shown in the schematic plan view PL2 of FIG. 1, when the backrest 31 of chair 11 is in the second position, the sitting direction of chair 11 is the direction toward table 22. In other words, when the sitting direction of chair 11 is the second direction DA2, the sitting direction of chair 11 is the direction toward table 22. In the present disclosure, "the direction toward table 22" can be rephrased as "the direction toward table top 41 of table 22."

[0026] In the present disclosure, the sitting direction of chair 11 does not have to completely coincide with the direction from chair 11 toward table 21 or table 22. For example, as long as a worker seated in chair 11 can work using table 21 or table 22, a difference between the sitting direction of chair 11 and the direction from chair 11 toward table 21 or table 22 is permissible. For example, the "direction opposite to the first direction" does not have to be a direction strictly parallel to the first direction. For example, if a worker seated in chair 11 can work using table 22, the sitting direction of chair 11 may be considered to be the second direction DA2, and the second direction DA2 may be considered to be the direction opposite to the first direction DA1.

[0027] <Rearrangement of furniture system> As shown in the schematic plan view PL1 of Fig. 1 and the schematic perspective view PA1 of Fig. 3, when the position of the backrest 31 of chair 11 is in the first position, two workers can sit on each of chairs 11 and 12, with table 21 between them. Therefore, when the position of backrest 31 of chair 11 is in the first position, furniture system 1 is in a first arrangement that allows multiple workers to work more efficiently using chairs 11, 12, and table 21.

[0028] On the other hand, as shown in the schematic plan view PL2 of FIG. 1 and the schematic perspective view PA2 of FIG. 3, when the position of the backrest 31 of chair 11 is in the second position, only the seating direction of chair 12 faces toward table 21, and the seating direction of chair 11 faces away from table 21. Therefore, when the position of backrest 31 of chair 11 is in the second position, even if one worker is working using chair 12 and table 21, furniture system 1 prevents chair 11 from being occupied by that single worker. In other words, when the position of backrest 31 of chair 11 is in the second position, furniture system 1 is in the second arrangement that allows one worker to work more efficiently using chair 12 and table 21. Furthermore, with the above configuration, furniture system 1 does not require separate chair and table sets for one worker to work and chair and table sets for multiple workers to work, and realizes chair and table layouts according to the number of workers. Therefore, the furniture system 1 achieves space saving, and enables more effective use of the space in which the furniture system 1 is installed.

[0029] Note that the chair 11 according to this embodiment may be capable of seating multiple workers side by side. In other words, when the backrest 31 of the chair 11 is in the second position, the furniture system 1 allows a smaller number of workers to perform work more efficiently than when the backrest 31 of the chair 11 is in the first position.

[0030] Furthermore, when the position of the backrest 31 of the chair 11 is in the second position, the backrest 31 of the chair 11 functions as, for example, a partition between the worker who is sitting in the chair 12 and working at the table 21 and the worker who is sitting in the chair 11. Therefore, when the position of the backrest 31 of the chair 11 is in the second position, the furniture system 1 improves the working comfort of the worker who is sitting in the chair 12 and working at the table 21.

[0031] As described above, the position of the backrest 31 of the chair 11 can be moved by moving the position of the backrest 31 between the first position and the second position without moving the chair 11 itself on the floor surface F. Therefore, the furniture system 1 can change the arrangement as described above by simply moving the position of the backrest 31 without the burden of, for example, lifting and moving the chair 11.

[0032] Therefore, the furniture system 1 makes it possible to more easily or quickly switch between the first and second arrangements described above depending on the type of work being performed by the worker. Therefore, the furniture system 1 makes it possible to easily and flexibly switch the arrangement of the chairs 11, 12, and table 21 in the work space WS depending on the type of work being performed by the worker.

[0033] The movement of the backrest 31 of the chair 11 between the first position and the second position is achieved by the backrest 31 moving relative to the seat surface 34. Therefore, the furniture system 1 makes it easier to change the above-mentioned arrangement compared to, for example, changing the sitting direction of the chair 11 by rotating the backrest 31 together with the seat 32. In addition, with the above configuration, the furniture system 1 can shorten the distance between the chair 11 and the table 21 required for changing the above-mentioned arrangement, thereby enabling more efficient use of the office space WS. However, this embodiment is not limited to this, and the movement of the backrest 31 of the chair 11 between the first position and the second position may also be achieved by, for example, rotating the backrest 31 together with the seat 32.

[0034] When the backrest 31 of the chair 11 is in the second position, the sitting direction of the chair 11 is a second direction DA2 toward the table 22. Therefore, even when the above-described arrangement is the second arrangement, the furniture system 1 enables a worker seated in the chair 11 to work using the table 22. Therefore, with the above configuration, the furniture system 1 can further improve the worker's work comfort, or enable more effective use of the space in which the furniture system 1 is placed.

[0035] Chair 12 may be a convertible chair. In this case, the seating direction of chair 12 is convertible between a first direction DB1, which is the direction from chair 12 toward table 21, and a direction opposite to first direction DB1, as shown in each drawing of FIG. 1, for example. When chair 12 is a convertible chair, furniture system 1 may further include another table that has the same configuration as table 21 or table 22 and is located on the opposite side of table 21 across chair 12 in a plan view.

[0036] However, the position of the backrest 31 of chair 12 may be fixed relative to the seat 32, for example, in which case the seating direction of chair 12 may always be the first direction DB1. In other words, at least one of chair 11 and chair 12 may be a convertible chair. In this case, chair 12, among the multiple chairs included in furniture system 1, may be positioned at the extreme end in the first direction DA1. In this case, furniture system 1 realizes the above-mentioned easy conversion of the arrangement without making chair 12 a convertible chair, thereby simplifying furniture system 1 while improving the comfort of work for the worker using furniture system 1.

[0037] In addition to chair 11 and chair 12, furniture system 1 may also include other chairs having the same configuration as chair 11 or chair 12. Furthermore, in addition to table 21 and table 22, furniture system 1 may also include other tables having the same configuration as table 21 or table 22. In this case, the chairs and tables included in furniture system 1 may be arranged alternately along the first direction DA1 or the second direction DA2, and multiple chairs may be convertible chairs whose seating direction can be switched between the first direction DA1 and the second direction DA2.

[0038] Although an example has been described in which the position of the backrest 31 of the chair 11 can be changed between a first position and a second position, this embodiment is not limited to this. For example, the backrest 31 of the chair 11 may be able to stop between the first position and the second position in the first direction DA1. In this case, workers or the like may be able to sit on the chair 11 from both the front and the back of the seat 32 in the first direction DA1.

[0039] <Chair legs> 4, chair 11 has, for example, a first leg 32A and a second leg 32B below seat 32 that contact floor F. First leg 32A and second leg 32B support seat 32 on floor F. Second leg 32B is spaced apart from first leg 32A in first direction DA1.

[0040] The first leg 32A and the second leg 32B do not have to be fixed to the floor surface F. In other words, the chair 11 may be movable on the floor surface F. In this case, the furniture system 1 allows the position of the chair 11 to be changed within the work space WS, thereby improving the comfort of the worker's work and making it easier to store the chair 11. Note that the chair 12 may also be movable on the floor surface F.

[0041] The first leg 32A and the second leg 32B may have casters, and the first leg 32A and the second leg 32B may have adjusters for adjusting the height and horizontality of the seat 34.

[0042] In the present disclosure, in a side view of the side of chair 11 seen in a direction perpendicular to the direction from chair 11 to table 21, the position of the outer end of first leg 32A in the direction from chair 11 to table 21 is defined as position EA, and the position of the outer end of second leg 32B in the direction from chair 11 to table 21 is defined as position EB. Positions EA and EB are each indicated by dotted lines in Figure 4. In this embodiment, as shown in Figure 4, grip portion 33 is located between positions EA and EB in the direction from chair 11 to table 21, regardless of whether backrest 31 is in the first position or the second position.

[0043] In this case, when a worker or the like grasps and pulls the grip portion 33 to move the position of the backrest 31 of the chair 11, the force acting on the grip portion 33 is more likely to act on the backrest 31 than on, for example, the seat portion 32. This makes it easier for a worker or the like to grasp the grip portion 33 and move the backrest 31 of the chair 11. Furthermore, when the backrest 31 is moved by grasping the grip portion 33 according to this embodiment, the chair 11 is less likely to tip over from the perspective of center of gravity balance than when the grip portion 33 is positioned outside, between positions EA and EB in the direction from the chair 11 toward the table 21. As described above, this embodiment does not exclude the case where the chair 11 is fixed to the floor, but the effect of making the chair 11 less likely to tip over is particularly beneficial when the chair 11 is not fixed to the floor.

[0044] This becomes more pronounced when the first leg 32A and the second leg 32B are not fixed to the floor surface F and the chair 11 is movable on the floor surface F. More specifically, with the above configuration, the furniture system 1 reduces movement of the chair 11 itself on the floor surface F, while making it easier to move the position of the backrest 31 more efficiently.

[0045] In addition, when viewed from the front of chair 11, gripping portion 33 may be located outside the outer end of first leg 32A or the outer end of second leg 32B in a direction perpendicular to the direction from chair 11 to table 21, for example, in the left-right direction of chair 11. In this disclosure, the front of a chair including chair 11 refers to the side on which the surface of the chair back that supports a seated worker or the like is located. Therefore, in this disclosure, a front view of a chair refers to looking at the surface of the chair back that supports a seated worker or the like from the direction opposite to the sitting direction of the chair.

[0046] <Display> The furniture system 1 further includes a display 51. The display 51 is disposed on at least one table top 41, for example, on the table top 41 of each of the tables 21 and 22. In particular, the display 51 is located on the side of the end 41A of the table top 41, which is one end side in the direction perpendicular to the direction from the chair 11 toward the table 21, in other words, in the direction perpendicular to the first direction DA1.

[0047] The display 51 has a display unit 52 that displays information on the top panel 41, on the side of the end 41B, which is the other end opposite the end 41A in the direction perpendicular to the first direction DA1. In other words, the display unit 52 of the display 51 is disposed so as to face the end 41B side of the top panel 41. Therefore, the display direction D51 of the display 51 is the direction from the end 41A side toward the end 41B side.

[0048] Therefore, furniture system 1 can display information on display 51 to a worker who is seated in chair 11 or chair 12 and working at table 21 or table 22. Furthermore, with the above configuration, furniture system 1 improves the worker's visibility of display 51 while reducing the interference caused by display 51 with the worker's work at table 21 or the like. Therefore, furniture system 1 further improves the worker's work comfort.

[0049] [Embodiment 2] Another embodiment of the present disclosure will be described in detail. For the sake of convenience, the same reference numerals will be used to designate components having the same functions as those described in the previous embodiment, and the description thereof will not be repeated.

[0050] <Opening that forms the grip part> The furniture system 1 according to this embodiment differs in configuration from the furniture system 1 according to the previous embodiment only in that it includes a chair 61 instead of the chair 11. The chair 61 according to this embodiment will be described in detail with reference to Fig. 5. Fig. 5 is a schematic front view of the chair 61 according to this embodiment.

[0051] The backrest 31 of the chair 61 has an opening 37 at least partially between it and the seat surface 34. In particular, the opening 37 penetrates the backrest 31 along the sitting direction of the chair 61. At least one opening 37 may be formed in the backrest 31, or, for example, multiple openings 37 may be formed.

[0052] The opening 37 is located, for example, on the upper side of the backrest 31. As a result, in the chair 61, the opening 37 forms a gripping portion that can be grasped by a worker or the like to move the position of the backrest 31. However, instead of the opening 37, the chair 61 in this embodiment may have a recess that is formed in the backrest 31 but does not penetrate the backrest 31, and the recess may be used as a gripping portion that can be grasped by a worker or the like.

[0053] Except for the above, chair 61 has the same configuration as chair 11. In other words, chair 61 is a convertible chair whose sitting direction can be changed between a first direction DA1 and a second direction DA2 by moving the position of backrest 31 between a first position and a second position. For the same reasons as those described above, furniture system 1 according to this embodiment, which is equipped with convertible chair chair 61, enables the arrangement of chair 61, chair 12, and table 21 in office space WS to be easily and flexibly changed depending on the type of work being performed by the worker. Note that chair 12 according to this embodiment may also have the same configuration as chair 61.

[0054] In this embodiment, by forming the gripping portion using the opening 37, the chair 61 does not have a gripping portion that protrudes outward from the outer shape of the backrest 31. This reduces interference between the gripping portion and other components in the office space WS, allowing the office space WS to be used more effectively. Furthermore, by reducing the structure that protrudes from the backrest 31 of the chair 61, the furniture system 1 improves the aesthetics of the office space WS.

[0055] Additionally, when viewed from the front of the chair 61, the grip portion of the chair 61 is likely to be located more inward than the outer end of the first leg 32A or the outer end of the second leg 32B, even in a direction perpendicular to the direction from the chair 61 to the table 21. This makes it more likely that the force exerted by gripping the grip portion of the chair 61 and pulling the backrest 31 will be a force for moving the backrest 31. Therefore, the upper configuration of the furniture system 1 makes it even easier for workers to grip the grip portion of the chair 61 and move the backrest 31.

[0056] In this way, the chair 61 with the opening 37 increases the degree of freedom in designing the chair 61, enabling a design that allows workers to more efficiently perform their work or rearrange the furniture system 1.

[0057] [Embodiment 3] A further embodiment of the present disclosure will now be described in detail.

[0058] <Lumbar support> The furniture system 1 according to this embodiment differs in configuration from the furniture system 1 according to any of the above-described embodiments only in that it includes a chair 71 instead of the chair 11 or the chair 61. The chair 71 according to this embodiment will be described in detail with reference to FIGS. 6 and 7.

[0059] FIG. 6 is a schematic front view of a chair 71 according to this embodiment, and FIG. 7 is a schematic side view of the chair 71 according to this embodiment. In particular, FIG. 7 shows the chair 71 as viewed from the armrest 35 side. Therefore, in FIG. 7, the various components located further back than the armrest 35 are indicated by dotted lines. FIG. 7 shows the backrest 31 and the lumbar support 39 (described later), with the backrest 31A and lumbar support 39A in a first position, the backrest 31B and lumbar support 39B in a second position, and the backrest 31C and lumbar support 39C in an intermediate position (described later). In FIG. 7, the backrest 31B, lumbar support 39B, and gripping portion 33 formed on the backrest 31B are indicated by two-dot chain lines. In FIG. 7, the backrest 31C, lumbar support 39C, and gripping portion 33 formed on the backrest 31C are also indicated by two-dot chain lines.

[0060] The backrest 31 of the chair 71 has an opening 38 at least partially between it and the seat surface 34. In particular, the opening 38 penetrates the backrest 31 along the sitting direction of the chair 61, and is formed in part of the lower end of the backrest 31 on the seat surface 34 side. Therefore, there is always a gap between the backrest 31 and the seat surface 34 on the seat surface 34 side.

[0061] The chair 71 further has a lumbar support 39. The lumbar support 39, together with the backrest 31 and the seat surface 34 of the seat portion 32, supports the worker or the like seated on the chair 71, and in particular supports the worker's lower back. When viewed from the front of the chair 71, the lumbar support 39 is located inside the opening 38.

[0062] Like the above-described chair 11 or chair 61, chair 71 according to this embodiment is a reversible chair in which the seating direction is changed by moving the position of backrest 31 between a first position and a second position. For the same reasons as those described above, furniture system 1 according to this embodiment, which is equipped with chair 71 that is a reversible chair, allows the arrangement of chair 71, chair 12, and table 21 in office space WS to be easily and flexibly changed depending on the type of work being performed by the worker.

[0063] Here, when the backrest 31 is in the first or second position, the lumbar support 39 moves in accordance with the movement of the position of the backrest 31 so as to be positioned on the seat surface 34 and in front of the backrest 31 in the sitting direction. The mechanism for moving the lumbar support 39 will be described in detail with reference to Figure 7.

[0064] Assume that the backrest 31 of the chair 11 is in a first position 31A, and the seating direction of the chair 11 is a first direction DA1 that faces the table 21. In this case, the lumbar support 39A is located on the front side of the backrest 31A in the first direction DA1.

[0065] For example, suppose a worker grasps the grip portion 33 of the backrest 31A and pulls it in the first direction DA1. In this case, the backrest 31A moves in the first direction DA1 relative to the seat 32 via a link mechanism (not shown in FIG. 7). Accordingly, the lumbar support 39A moves in the first direction DA1 in conjunction with the movement of the backrest 31A. For example, the chair 71 may have a link mechanism (not shown) that rotatably connects the lumbar support 39 and the seat 32. In this case, the link mechanism connecting the lumbar support 39 may be linked to the link mechanism connecting the backrest 31 and rotate around the seat 32 as a fulcrum, thereby moving the lumbar support 39 together with the backrest 31.

[0066] The distance that lumbar support 39 moves in first direction DA1 is shorter than the distance that backrest 31 moves in first direction DA1. Therefore, particularly when backrest 31 moves to the central position that is located in the center of seat portion 32 in first direction DA1 to become backrest 31C shown in Fig. 7, lumbar support 39 also moves to the central position to become lumbar support 39C.

[0067] As described above, lumbar support 39 is located inside opening 38 when chair 71 is viewed from the front. Therefore, as backrest 31 moves, lumbar support 39 passes between the inside of opening 38 and seat surface 34. As shown in Figure 7 in particular, backrest 31C and lumbar support 39C are positioned to overlap when chair 71 is viewed from the side.

[0068] While the backrest 31 moves from the first position to the second position, the positional relationship between the backrest 31 and the lumbar support 39 in the first direction DA1 is reversed. Therefore, when the backrest 31 becomes the backrest 31B located at the second position, the lumbar support 39 becomes the lumbar support 39B located on the front side in the second direction DA2 of the backrest 31B.

[0069] As described above, the chair 71 moves the position of the lumbar support 39 to an appropriate position for supporting the waist of the operator sitting on the chair 71 regardless of whether the position of the backrest 31 is the first position or the second position. Therefore, the furniture system 1 provided with the chair 71 improves the comfort of the operator's work more.

[0070] As described above, since the chair 71 has the opening 38 formed at the lower end on the seat surface 34 side of the backrest 31, the chair 71 can reduce the interference between the backrest 31 and the objects on the seat surface 34 such as the lumbar support 39 accompanying the movement of the backrest 31. For this reason, the furniture system 1 provided with the chair 71 having the opening 38 improves the degree of freedom in the design of the chair 71, and enables the design of the chair 71 particularly for improving the comfort of the operator's work more.

[0071] For example, instead of the lumbar support 39 that moves in conjunction with the movement of the backrest 31, the chair 71 may be provided with a seat cushion fixed to the upper part of the seat portion 32. In this case, as the backrest 31 moves, the seat cushion may pass through between the inside of the opening 38 and the seat surface 34. Thereby, the chair 71 enables the operator to sit on the seat cushion regardless of whether the position of the backrest 31 is the first position or the second position. Alternatively, the chair 71 may not be provided with the lumbar support 39. In this case, even when an object such as a load is placed on the seat surface 34, the chair 71 can pass the object through the inside of the opening 38, thereby enabling the position of the backrest 31 to be switched. In other words, the chair 71 reduces the interference between the backrest 31 and the object on the seat surface 34 when the position of the backrest 31 is switched.

[0072] <Contribution to SDGs> The furniture system 1 according to each embodiment provides a flexible work environment for workers in a space where work is performed, such as an office, thereby providing workers with a more comfortable work environment. Work performed in a space such as an office is the foundation of social or economic activity. Therefore, the furniture system 1, which provides users with a space where they can perform that work comfortably, contributes to the smooth promotion of social or economic activity by users and contributes to economic development. Such effects also contribute to the achievement of Goal 8 of the Sustainable Development Goals (SDGs) advocated by the United Nations, "Decent Work and Economic Growth," for example.

[0073] The present disclosure is not limited to the above-described embodiments, and various modifications are possible within the scope of the claims. Embodiments obtained by appropriately combining the technical means disclosed in different embodiments are also included in the technical scope of the present disclosure. [Explanation of symbols]

[0074] 1 Furniture System 11 Chair (first chair, convertible chair) 12 Chair (Second Chair) 21 tables 32A First Leg 32B Second leg 33 Gripping part 34 seat 37 Opening 41 Top plate (workbench) 51 Display 52 Display section DA1 First Direction DA2 Second Direction

Claims

1. The first chair, A second chair, a workbench located between the first chair and the second chair in a plan view, At least one of the first chair and the second chair is a convertible chair whose backrest position can be converted between a first position in which the seating direction is a first direction toward the workbench, and a second position in which the seating direction is a second direction opposite to the first direction.

2. The furniture system of claim 1 , wherein the work surface is separate from the first chair and the second chair.

3. The furniture system of claim 2 , wherein the work surface is a movable table top.

4. a second work table located on the opposite side of the work table across the convertible chair in a plan view; 4. The furniture system according to claim 1, wherein the second direction is towards the second work surface.

5. 4. The furniture system according to claim 1, wherein at least one of the first chair and the second chair is movable on a floor surface.

6. the convertible chair has a gripping portion that is gripped to change the position of the backrest, a first leg that contacts the floor surface, and a second leg that is spaced apart from the first leg in the first direction; 4. The furniture system of claim 1, wherein the gripping portion is located between the outer end of the first leg and the outer end of the second leg in a side view of the side of the convertible chair in a direction perpendicular to the direction from the convertible chair to the workbench, regardless of whether the backrest is in the first position or the second position.

7. a display provided on one end side of the work table in a direction perpendicular to the first direction in a plan view; The furniture system according to claim 1 , wherein a display portion of the display is arranged to face the other end of the work table.

8. 4. The furniture system of claim 1, wherein the back of the convertible chair has an opening at least partially between the back and the seat of the convertible chair.

9. 4. The furniture system of claim 1, wherein the backrest moves relative to the seat of the convertible chair between the first position and the second position.

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