Furniture system

Abstract

To provide a furniture system which can be changed into various modes.SOLUTION: A furniture system 1 according to an embodiment includes a support structure 2 installed on a floor surface, a seat 30 supported by the support structure 2, an optional member 4 supported by the support structure 2 and arranged in a left-right direction of the seat 30 in a plan view, and a connection member 5 provided between the support structure 2 and the optional member 4 so as to be attachable to and detachable from each of the support structure 2 and the optional member 4, the connection member 5 being configured to change a relative positional relationship between the seat 30 and the optional member 4. The furniture system 1 is configured to be switchable between a first state in which the support structure 2 and the optional member 4 are connected without the connection member 5 and a second state in which the support structure 2 and the optional member 4 are connected via the connection member 5.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a furniture system. [Background technology]

[0002] BACKGROUND ART Chairs are known in offices, public facilities, and the like, in which a chair body having a seat is attached to a support rod that extends substantially horizontally (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. 2016 / 063826 Summary of the Invention [Problem to be solved by the invention]

[0004] Such chairs are used by a wide variety of people, and therefore may require a variety of configurations.

[0005] Therefore, an object of the present invention is to provide a fixture system that can be modified in various ways. [Means for solving the problem]

[0006] (1) A fixture system according to one aspect of the present invention comprises a support structure installed on a floor surface, a seat supported by the support structure, an optional member arranged in line with the left and right of the seat in a plan view and supported by the support structure, and a connecting member provided between the support structure and the optional member in a detachable manner with respect to each of the support structure and the optional member, and configured to change the relative positional relationship between the seat and the optional member, and configured to be switchable between a first state in which the support structure and the optional member are connected without the connecting member, and a second state in which the support structure and the optional member are connected via the connecting member. According to this aspect, when switched to the first state, the optional member is connected to the support structure without the connecting member. On the other hand, when switched to the second state, the optional member is connected to the support structure via the connecting member. Therefore, it is possible to provide a furniture system that can be changed into various forms.

[0007] (2) In the above aspect (1), the structure may be configured to be switchable between a third state in which the support structure and the optional member are connected via a connecting member different from that in the second state, and a fourth state in which the support structure and the optional member are connected via a connecting member different from that in the third state. According to this aspect, when switched to the third state, the optional member is connected to the support structure via a connecting member different from that in the second state. On the other hand, when switched to the fourth state, the optional member is connected to the support structure via a connecting member different from that in the third state. Therefore, it is possible to change to various other forms.

[0008] (3) In the above aspect (1) or (2), the optional member may include an armrest, and the armrest may be configured so that its vertical position relative to the seat can be changed by switching between the first state and the second state. According to this aspect, the height of the armrest relative to the seat can be changed. If the armrest is set higher than a predetermined height relative to the seat, it can assist the seated person in standing up. On the other hand, if the armrest is set lower than a predetermined height relative to the seat, the elbows are less likely to get in the way of people who want to sit comfortably.

[0009] (4) In the above aspect (2), the optional member may include an armrest, and when viewed from the left-right direction, the armrest may be configured to be able to change the inclination of the armrest relative to the seat by switching between the first state and the third state. According to this aspect, the inclination of the armrest relative to the seat can be changed to tilt forward or backward. When the armrest is tilted forward relative to the seat, it fits comfortably to the arms when sitting and makes it easier to place the hands on it when standing up. On the other hand, when the armrest is tilted backward relative to the seat, the elbows do not get in the way for people who want to sit comfortably when sitting and it helps them stand up when standing up.

[0010] (5) In the above aspects (2) or (4), the optional member may include an armrest, and the armrest may be configured so that its position in the fore-and-aft direction relative to the seat can be changed by switching between the first state and the fourth state. According to this aspect, by changing the front-to-back position of the armrest relative to the seat, it is possible to change the seat into various other forms.

[0011] (6) In any of the above aspects (1) to (5), the optional member may include armrests, and the armrests may be arranged on both sides of the seat in the left-right direction. According to this aspect, the seated occupant can use the armrests on both the left and right sides, which can more effectively assist the seated occupant in standing up.

[0012] (7) In any of the above aspects (1) to (6), the support structure may include a support rod extending in the left-right direction, the optional member may have an optional side recess recessed upward into which the support rod can fit, the connecting member may include a connecting main body portion disposed between the support rod and the optional member, the upper surface of the connecting main body portion may have a connecting side protrusion protruding upward into which the optional side recess can fit, and the lower surface of the connecting main body portion may have a connecting side recess recessed upward into which the support rod can fit. According to this aspect, when connecting without a connecting member, the support rod is fitted into the optional-side recess, thereby firmly connecting the optional member to the support rod. On the other hand, when connecting via a connecting member, the connecting-side protrusion is fitted into the optional-side recess and the support rod is fitted into the connecting-side recess, thereby firmly connecting the connecting member to each of the optional member and the support rod.

[0013] (8) In the above aspect (7), the connecting side convex portion may be fitted into the optional side recess, and the support rod may further include a receiving member fitted into the connecting side recess and fixed to the support rod by being tightened and fixed to the optional member via the connecting member. According to this aspect, with the connecting side convex portion engaged with the optional side recess and the support rod engaged with the connecting side recess, the receiving member is tightened and fixed to the optional member via the connecting member, thereby firmly fixing the optional member, connecting member, and receiving member to the support rod.

[0014] (9) In the above aspect (7), the connecting member may be fastened to the optional member with the connecting side convex portion engaged with the optional side recess, and the support rod may further include a receiving member that is fastened to the support rod by being fastened to the connecting member and engaged with the connecting side recess. According to this aspect, the connecting member is tightened and fixed to the optional member with the connecting side convex portion engaged with the optional side recess, and the receiving member is tightened and fixed to the connecting member with the support rod engaged with the connecting side recess, thereby firmly fixing the optional member, connecting member, and receiving member to the support rod.

[0015] (10) In any of the above aspects (1) to (9), the seat may be provided in plurality and arranged side by side in the left-right direction. According to this aspect, the relative positional relationship between the plurality of seats and the optional members can be changed by attaching and detaching the connecting members, which allows further modifications to various configurations.

[0016] (11) In any of the above aspects (1) to (10), the seat may further include a cushion member that is detachably provided above the seat and configured to change the position of the seat surface relative to the support structure. According to this aspect, when the cushion member is installed, the position of the seat surface relative to the support structure is raised, thereby assisting the seated occupant in standing up.

[0017] (12) In the above aspect (11), the cushion member may have a maximum thickness at a rear portion in the front-to-rear direction of the seat. According to this aspect, when the seat is tilted backward (for example, when the seat is designed to be deep to sit on), the seat surface can be raised so as to be flat. [Effects of the Invention]

[0018] According to one aspect of the present invention, a fixture system that can be modified in various ways can be provided. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 1 is a perspective view of a fixture system according to an embodiment. [Figure 2] FIG. 1 is an exploded perspective view of a fixture system according to an embodiment. [Figure 3] FIG. 2 is an exploded side view of the fixture system of the embodiment. [Figure 4] FIG. 1 is a side view of a fixture system according to an embodiment. [Figure 5] FIG. 2 is a front view of the fixture system according to the embodiment. [Figure 6] A side view showing a second state of the fixture system, including a cross section taken along line VI-VI in Figure 5. [Figure 7] FIG. 4 is a side view of the cushion member according to the embodiment. [Figure 8] FIG. 2 is a perspective view showing a first state of the fixture system of the embodiment. [Figure 9] FIG. 2 is a side view showing a first state of the fixture system of the embodiment. [Figure 10]FIG. 2 is a front view showing the first state of the fixture system of the embodiment. [Figure 11] A side view showing the first state of the fixture system, including the XI-XI cross section of Figure 10. [Figure 12] A side view showing the third state of the fixture system, including a cross section corresponding to Figure 11. [Figure 13] FIG. 10 is a side view showing a fourth state of the fixture system according to the embodiment. [Figure 14] A side view showing the state in which the back cushion and seat cushion are thickened in the furniture system of the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0020] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, expressions indicating relative or absolute arrangements, such as "parallel," "orthogonal," "center," and "coaxial," not only mean such arrangements strictly, but also include states in which the components are relatively displaced by an angle or distance to a degree that allows tolerances or the same function to be obtained. In the drawings used in the following description, the scale of each component may be changed to make it recognizable.

[0021] <Fixture system> Fig. 1 is a perspective view of a furniture system 1 according to an embodiment. Fig. 2 is an exploded perspective view of the furniture system 1 according to an embodiment. Fig. 3 is an exploded side view of the furniture system 1 according to an embodiment. Fig. 4 is a side view of the furniture system 1 according to an embodiment. 1 to 4, the furniture fixture system 1 is placed on a floor surface F. For example, the furniture fixture system 1 is installed in an office, a public facility, etc. The installation location of the furniture fixture system 1 is not limited to the above and can be changed as appropriate.

[0022] In the following description, each figure will appropriately show an XYZ coordinate system as a three-dimensional Cartesian coordinate system. In the XYZ coordinate system, the Z-axis direction is the vertical direction. The vertical direction is the direction perpendicular to the floor surface F on which the furniture system 1 is placed (corresponding to the up-down direction). The +Z side is the upper side, and may be simply referred to as the "upper side" hereinafter. The -Z side is the lower side, and may be simply referred to as the "lower side" hereinafter. The X-axis direction is a direction perpendicular to the Z-axis direction and is the left-right direction of the furniture system 1, and may be simply referred to as the "width direction" hereinafter. The +X side is the right side of the furniture system 1, and may be simply referred to as the "right side" hereinafter. The -X side is the left side of the furniture system 1, and may be simply referred to as the "left side" hereinafter. The Y-axis direction is a direction perpendicular to the X-axis direction and the Z-axis direction and is the front-to-back direction of the furniture system 1. The +Y side is the rear side of the furniture system 1, and may be simply referred to as the "rear side" hereinafter. The -Y side is the front side of the fixture system 1, and may be simply referred to as the "front side" hereinafter. Note that the terms "upper", "lower", "front", "rear", "left" and "right" are simply names used to describe the relative positional relationships of the various parts, and the actual positional relationships may be other than those indicated by these names.

[0023] Fig. 5 is a front view of the furniture system 1 according to the embodiment. Fig. 6 is a side view showing the furniture system 1 in a second state, including a cross section taken along line VI-VI in Fig. 5. Fig. 7 is a side view of the cushion member 6 according to the embodiment. Referring also to Figures 5 to 7, the furniture system 1 comprises a support structure 2, a seat 30 supported by the support structure 2, an optional member 4 supported by the support structure 2, and a connecting member 5 provided between the support structure 2 and the optional member 4.

[0024] <Support structure> The support structure 2 is installed on the floor surface F. The support structure 2 includes a support rod 20 extending in the left-right direction. The support rod 20 is formed, for example, from a metal material. Note that the support rod 20 only needs to be formed from a material with high strength and rigidity, since it must support the weight of the seat 30, optional member 4, and seated person. The material from which the support rod 20 is formed can be changed according to design specifications.

[0025] The support rod 20 is formed into a rectangular cross section that extends linearly in the left-right direction. When viewed from the left-right direction, the support rod 20 is formed into a rectangular shape that is long in the up-down direction. Legs 21 are attached to multiple points in the longitudinal direction of the support rod 20. The legs 21 are provided on both sides of the support rod 20 in the left-right direction. The support rod 20 is placed on the floor surface F via the legs 21.

[0026] <za> The seat 30 is supported by the support structure 2. The seat 30 has the function of supporting the buttocks of a seated person. A plurality of seats 30 are provided side by side in the left-right direction. The plurality of seats 30 have the same structure. In the example shown in the figure, three seats 30 are provided. However, two seats 30 may be provided, or four or more seats 30 may be provided. The number of seats 30 provided can be changed according to the design specifications.

[0027] The seat 30 constitutes a chair body 3 attached to the support structure 2. The chair body 3 includes a backrest 31 that supports the back of a seated person. The backrest 31 is formed in a gentle S-shape in side view. In the example shown in the figure, the backrest 31 extends upward from the rear end of the seat 30 in side view, then tilts upward and backward, and then extends upward again. The backrest 31 is not limited to the above, and may also extend straight upward from the rear end of the seat 30. Note that the backrest 31 does not have to be provided on the chair body 3. The installation manner of the backrest 31 can be changed according to design specifications.

[0028] The chair body 3 is supported by the support structure 2 by connecting the lower part of the seat 30 to the support rod 20. In the example shown in the figure, a pair of left and right seat support parts 32 are provided at the lower part of the seat 30. The seat support parts 32 extend downward from the underside of the left and right side edges of the seat 30. A female-threaded bolt fastening hole (not shown) is formed on the underside of the seat support parts 32.

[0029] A U-shaped seat bracket 33 that opens upward is fitted to the lower part of the support rod 20, which is rectangular in cross section. A bolt insertion hole that passes through in the vertical direction is formed in the seat bracket 33. With the support rod 20 fitted in the recess of the seat bracket 33, a bolt is inserted from below the seat bracket 33 through the bolt insertion hole, and the tip end portion of the bolt is tightened into a corresponding bolt fastening hole in the seat support part 32 (not shown).

[0030] The seat 30 is not limited to the above, and may be detachably connected to the support rod 20 by fitting or press-fitting. For example, the seat receiving bracket 33 does not have to be provided. For example, the seat 30 may be joined to the support rod 20 by welding. The manner in which the seat 30 is fixed to the support rod 20 can be changed according to the design specifications.

[0031] <Optional parts> The optional members 4 are supported by the support structure 2. The optional members 4 are arranged side by side in the left-right direction of the seat 30 in a plan view. In the example shown in the figure, two optional members 4 are provided. However, one optional member 4 may be provided, or three or more optional members 4 may be provided. The number of optional members 4 provided can be changed according to the design specifications.

[0032] The optional components 4 include armrests 40. The armrests 40 are arranged on both left and right sides of the seat 30. In the example shown in the figure, the armrests 40 are arranged on both left and right sides of the middle seat 30 in the left and right direction. Note that the armrests 40 may also be arranged on the outside left and right sides of the outer seats 30 in the left and right direction. The arrangement of the armrests 40 can be changed according to the design specifications.

[0033] The optional member 4 may be configured to include an article stand (not shown) supported by the support rod 20. For example, the article stand may be disposed between some of the adjacent chair bodies 3. For example, the article stand may be provided in place of one of the three seats 30. The installation mode of the article stand can be changed according to design specifications.

[0034] The armrest 40 comprises an armrest body 41 that supports the elbow of a seated occupant, and an armrest support portion 42 that extends downward from the underside of the armrest body 41. The armrest body 41 is formed into a rectangular frame shape in side view. In the example shown in the figures, the armrest body 41 includes an upper edge portion extending in the front-to-rear direction in side view, a front edge portion that extends downward from the front end of the upper edge at an angle to be positioned forward, a lower edge portion that extends downward from the lower end of the front edge at an angle to be positioned rearward in the front-to-rear direction, and a rear edge portion that extends in a gentle curve from the rear end of the lower edge toward the rear end of the upper edge. In the example shown in the figures, the armrest support portion 42 extends downward from the rear end of the lower edge portion.

[0035] The optional component 4 is provided with an optional component-side recess 4d that faces upward and into which the support rod 20 can fit. In the example shown in the figure, the optional component-side recess 4d is recessed upward from the underside of the armrest support part 42. A pair of front and rear wall parts of the armrest support part 42 have female-threaded bolt fastening holes 42j formed on the undersides of the wall parts.

[0036] <Connecting member> The connecting member 5 is provided between the support structure 2 and the optional member 4 so as to be detachable from each of the support structure 2 and the optional member 4. The connecting member 5 is configured so that the relative positional relationship between the seat 30 and the optional member 4 can be changed.

[0037] The connecting member 5 has a connecting body 50 disposed between the support rod 20 and the optional component 4. A connecting side protrusion 51 that protrudes upward and can fit into the optional component 4d is provided on the upper surface of the connecting body 50. A connecting side recess 52 that is recessed upward and can fit into the support rod 20 is provided on the lower surface of the connecting body 50.

[0038] The upper part of the connecting body 50 is formed in a plate shape that follows the XY plane. A bolt insertion hole 50h that penetrates in the up-down direction is formed in the upper part of the connecting body 50. The connecting side protrusion 51 is formed in a convex shape with front and rear edge portions that follow the front and rear inner surfaces of the option side recess 4d when viewed from the left and right. The lower part of the connecting body 50 (a pair of front and rear wall portions of the connecting side recess 52) is formed to surround the bolt 56 from the outside in the front-rear direction and the outside in the left and right directions.

[0039] The connecting side protrusion 51 is fitted into the optional side recess 4d. The support rod 20 is fitted into the connecting side recess 52. The furniture system 1 includes a receiving member 55 that is fastened to the support rod 20 by being fastened to the optional member 4 via the connecting member 5.

[0040] The receiving member 55 is formed in a U-shape that opens upward in a side view. A bolt insertion hole 55h that penetrates in the vertical direction is formed in the receiving member 55. The connecting side protrusion 51 is fitted into the option side recess 4d, the upper part of the support rod 20 is fitted into the connecting side recess 52, and the receiving member 55 is fitted into the lower part of the support rod 20. In this fitted state, a bolt 56 is inserted from below the receiving member 55 through the bolt insertion holes 50h, 55h, and the tip portion of the bolt 56 is tightened into the corresponding bolt fastening hole 42j of the armrest support part 42.

[0041] With the receiving member 55 fastened to the optional member 4 via the connecting member 5, the upper surface of the connecting main body 50 may abut against the lower surface of the armrest support portion 42, the upper surface of the connecting side protrusion 51 may abut against the upper bottom surface of the optional member side recess 4d, the front and rear edges of the connecting side protrusion 51 may abut against the front and rear inner surfaces of the optional member side recess 4d, respectively, the lower surface of the connecting main body 50 (the lower surfaces of the pair of front and rear wall portions of the connecting side recess 52) may abut against the upper surface of the receiving member 55, the upper surface of the support rod 20 may abut against the upper bottom surface of the connecting side recess 52, the front and rear outer surfaces of the support rod 20 may abut against the front and rear inner surfaces of the connecting side recess 52 and the inner surface of the recess of the receiving member 55, respectively, or the lower surface of the support rod 20 may abut against the bottom surface of the recess of the receiving member 55. This allows the optional member 4, connecting member 5, and receiving member 55 to be accurately and stably positioned relative to the support rod 20.

[0042] With the receiving member 55 fastened to the optional member 4 via the connecting member 5, a gap may be formed above the tip end portion of the bolt 56 in the bolt fastening hole 42j. This prevents the bolt 56 from bottoming out when fastened, allowing the optional member 4, connecting member 5, and receiving member 55 to be firmly fixed to the support rod 20.

[0043] <Cushioning material> The furniture system 1 includes a cushion member 6 that is detachably provided above the seat 30 and is configured to change the position of the seat surface relative to the support structure 2. For example, the cushion member 6 may be detachably fixed to the upper surface of the seat 30 with fastening members such as bolts, or may be placed on the upper surface of the seat 30 without using fastening members or the like. The installation mode of the cushion member 6 can be changed according to design specifications.

[0044] The cushion member 6 has a maximum thickness T at the rear portion in the front-to-rear direction of the seat 30. In the example shown in the figures, the cushion member 6 extends rearward from the front end of the cushion member 6 in a side view, and then extends at a rearward and downward inclination relative to the front-to-rear direction. The cushion member 6 has a maximum thickness T at its rear end portion. For example, the maximum thickness T may be set in the range of 40 mm to 60 mm. The maximum thickness T is not limited to the above and can be changed according to design specifications.

[0045] For example, a plurality of cushion members 6, 16 of different thicknesses may be prepared (see FIGS. 4 and 9). This allows the position of the seat surface to be changed by simply replacing the plurality of cushion members 6, 16. Specifically, the cushion member 16 (see FIG. 9) may be removed from the seat 30, and a thicker cushion member 6 (see FIG. 4) may be attached to the seat 30. The manner in which the plurality of cushion members 6, 16 of different thicknesses are replaced can be changed according to the design specifications.

[0046] Fig. 8 is a perspective view showing the first state of the furniture system 1 of the embodiment. Fig. 9 is a side view showing the first state of the furniture system 1 of the embodiment. Fig. 10 is a front view showing the first state of the furniture system 1 of the embodiment. Fig. 11 is a side view showing the first state of the furniture system 1, including a cross section taken along line XI-XI of Fig. 10. Referring also to Figures 8 to 11, the fixture system 1 is configured to be switchable between a first state in which the support structure 2 and the optional member 4 are connected without a connecting member 5, and a second state (see Figure 6) in which the support structure 2 and the optional member 4 are connected via a connecting member 5.

[0047] The example in Figure 11 shows the case where the furniture system 1 is switched to the first state. In the first state, the optional member 4 is connected to the support structure 2 without the connecting member 5. In the first state, the upper part of the support rod 20 is fitted into the optional member-side recess 4d, and the receiving member 55 is fitted into the lower part of the support rod 20. In this fitted state, a bolt 57 is inserted from below the receiving member 55 through the bolt insertion hole 55h, and the tip portion of the bolt 57 is tightened into the corresponding bolt fastening hole 42j of the armrest support part 42.

[0048] The example in Figure 6 shows the case where the furniture system 1 has been switched to the second state. In the second state, the optional member 4 is connected to the support structure 2 via the connecting member 5. In the second state, the connecting-side convex portion 51 is fitted into the optional-side concave portion 4d, the upper portion of the support rod 20 is fitted into the connecting-side concave portion 52, and the receiving member 55 is fitted into the lower portion of the support rod 20. In this fitted state, a bolt 56 is inserted from below the receiving member 55 through the bolt insertion holes 50h and 55h, and the tip portion of the bolt 56 is tightened into the corresponding bolt fastening hole 42j of the armrest support portion 42.

[0049] The armrest 40 is configured so that its vertical position relative to the seat 30 can be changed by switching between a first state and a second state. By switching between the first state and the second state, it is possible to change the height of the armrest 40 relative to the seat 30. In the first state, the armrest 40 is lowered to a predetermined level or lower relative to the seat 30 (see FIG. 11). In the second state, the armrest 40 is higher than a predetermined level relative to the seat 30 (see FIG. 6).

[0050] For example, the height H of the connecting member 5 may be set in the range of 40 mm to 60 mm. The height H of the connecting member 5 corresponds to the height in the vertical direction from the lower surface of the connecting main body 50 (the lower surfaces of the pair of front and rear wall portions of the connecting side recess 52) to the upper surface of the connecting main body 50. For example, the height H of the connecting member 5 may be set to the same size as the maximum thickness T of the cushion member 6. The height H of the connecting member 5 is not limited to the above and can be changed according to design specifications.

[0051] Fig. 12 is a side view showing the third state of the furniture system 1, including a cross section corresponding to Fig. 11. Fig. 13 is a side view showing the fourth state of the furniture system 1 of the embodiment. Referring also to Figures 12 and 13, the fixture system 1 is configured to be switchable between a third state in which the support structure 2 and the optional member 4 are connected via a connecting member 105 that is different from the second state, and a fourth state in which the support structure 2 and the optional member 4 are connected via a connecting member 205 that is different from the third state.

[0052] The example in Figure 12 shows the case where the furniture system 1 is switched to the third state. In the third state, the optional member 4 is connected to the support structure 2 via a connecting member 105 that is different from that in the second state. The connecting member 105 that is different from that in the second state includes a connecting body portion 150 that is disposed between the support rod 20 and the optional member 4.

[0053] An upper wall portion 150a formed in a plate shape is provided on the upper surface side of the connecting main body portion 150. In a side view, the upper wall portion 150a extends at an angle relative to the vertical direction so that the upper portion of the upper wall portion 150a faces the front side of the seat 30. A connecting side protrusion 151 that protrudes upward and forward and can fit into the option side recess 4d is provided on the upper surface of the upper wall portion 150a. A connecting side recess 152 that is recessed upward and can fit into the support rod 20 is provided on the lower surface side of the connecting main body portion 150. A lower wall portion 150b formed in a plate shape along the XY plane is provided on the lower surface side of the connecting main body portion 150 (the lower surface sides of the pair of front and rear wall portions of the connecting side recess 152).

[0054] A bolt insertion hole 150h is formed in the upper wall portion 150a, penetrating the upper wall portion 150a so as to slope downward toward the front in the up-down direction (in the thickness direction of the upper wall portion 150a). The connecting side protrusion 151 is formed in a convex shape having front and rear edges that follow the front and rear inner surfaces of the option side recess 4d when viewed from the left and right direction. The lower part of the connecting main body portion 150 (a pair of front and rear wall portions of the connecting side recess 152) is formed so as to surround the bolt 57 from the outside in the front-rear direction and the outside in the left and right directions. An internally threaded bolt fastening hole 150j is formed in the lower wall portion 150b.

[0055] The connecting member 105 is fastened and fixed to the optional member 4 with the connecting side protrusion 151 fitted into the optional side recess 4d. The support rod 20 is fitted into the connecting side recess 152. The furniture system 1 includes a receiving member 55 fastened and fixed to the connecting member 105 and thereby fixed to the support rod 20.

[0056] The receiving member 55 is formed in a U-shape that opens upward in a side view. A bolt insertion hole 55h that penetrates the receiving member 55 in the vertical direction is formed. With the connecting-side protrusion 151 fitted into the optional-option-side recess 4d, a bolt 58 is inserted through the bolt insertion hole 150h from below the upper wall portion 150a, and the tip portion of the bolt 58 is tightened into the corresponding bolt fastening hole 42j of the armrest support portion 42. Furthermore, the upper portion of the support rod 20 is fitted into the connecting-side recess 152, and the receiving member 55 is fitted into the lower portion of the support rod 20. With the bolts fitted in this manner, a bolt 57 is inserted from below the receiving member 55 through the bolt insertion hole 55h, and the tip portion of the bolt 57 is tightened into the corresponding bolt fastening hole 150j of the lower wall portion 150b.

[0057] When viewed from the left and right, the armrest 40 is configured to be switchable between a first state and a third state, thereby changing the inclination of the armrest 40 relative to the seat 30. In other words, the armrest 40 is configured to be switchable between the first state and the third state, thereby changing the inclination so that the upper part of the armrest 40 faces forward or backward in a side view in the up-down direction. Switching between the first state and the third state makes it possible to change the inclination of the armrest 40 relative to the seat 30 to a forward or backward inclination. In the third state shown in FIG. 12 , the armrest 40 is inclined forward relative to the seat 30. Although not shown, in another third state, the armrest 40 may be inclined backward relative to the seat 30.

[0058] For example, the inclination angle A of the upper surface of the upper wall portion 150a of the connecting member 105 may be set in the range of 5 degrees to 45 degrees. The inclination angle A corresponds to the acute angle formed by a line (XY plane) along the front-to-rear direction in a side view and a line along the upper surface of the upper wall portion 150a. The inclination angle A is not limited to the above and can be changed according to design specifications.

[0059] The example in Figure 13 shows the case where the furniture system 1 is switched to the fourth state. In the fourth state, the optional member 4 is connected to the support structure 2 via a connecting member 205 that is different from that in the third state. The connecting member 205 that is different from that in the third state includes a connecting body portion 250 that is arranged between the support rod 20 and the optional member 4.

[0060] The connecting body 250 is formed into a shape that follows the XY plane. In a side view, the connecting body 250 extends from above the support rod 20 toward the front side of the seat 30. A connecting side protrusion 251 that protrudes upward and can fit into the option side recess 4d is provided on the upper surface of the front part of the connecting body 250. A connecting side recess 252 that is recessed upward and can fit into the support rod 20 is provided on the lower surface of the rear part of the connecting body 250.

[0061] The connecting side protrusion 251 is fitted into the option side recess 4d, the upper part of the support rod 20 is fitted into the connecting side recess 252, and the receiving member 55 is fitted into the lower part of the support rod 20. With them fitted in this manner, a bolt may be inserted through the bolt insertion hole from below the front part of the connecting main body 250 and the tip part of the bolt may be tightened into the corresponding bolt fastening hole of the armrest support part 42, or a bolt may be inserted through the bolt insertion hole from below the receiving member 55 and the tip part of the bolt may be tightened into the corresponding bolt fastening hole at the rear part of the connecting main body 250 (not shown).

[0062] The armrest 40 is configured to be able to change its position in the front-to-rear direction relative to the seat 30 by switching between a first state and a fourth state. In the fourth state shown in Fig. 13, the armrest 40 is positioned forward relative to the seat 30. Although not shown, in another fourth state, the armrest 40 may be positioned rearward relative to the seat 30.

[0063] FIG. 14 is a side view showing the furniture system 1 of the embodiment in which the back cushion 8 and the seat cushion 6 are thickened. As shown in FIG. 14 , in the furniture system 1, both the back cushion 8 and the seat cushion 6 may be thicker than a predetermined thickness. The back cushion 8 corresponds to a cushion member detachably provided in front of the backrest 31. The seat cushion 6 corresponds to a cushion member having a seat surface. The furniture system 1 may include the seat cushion 6 and the back cushion 8. The lower part of the back cushion 8 may be sandwiched between the rear part of the seat cushion 6 and the lower part of the backrest 31. For example, the back cushion 8 may be detachably fixed to the front of the backrest 31 with fastening members such as bolts, or may be placed on the front of the backrest 31 without fastening members or the like. The installation manner of the back cushion 8 can be changed according to design specifications.

[0064] In the illustrated example, the back cushion 8 curves downward from the upper end of the back cushion 8 in a side view, following the front surface of the backrest 31. For example, the seat height L1 may be set in the range of 450 mm or more and 520 mm or less. The seat height L1 corresponds to the height from the floor F to the upper surface of the seat cushion 6 in the vertical direction. For example, the seat depth L2 may be set in the range of 360 mm or more and 400 mm or less. The seat depth L2 corresponds to the distance from the front end of the seat 30 to the front end of the back cushion 8 in the front-rear direction. The seat height L1 and / or the seat depth L2 are not limited to the above and can be changed according to design specifications.

[0065] For example, if only the seat is made higher (if the back cushion remains at the standard thickness and only the seat cushion is made thicker), the distance from the floor to the back of the seat will be longer compared to the length of the occupant's legs, which will cause the occupant to sit shallowly on the seat and lean back, making it difficult to maintain a comfortable posture. 14, both the back cushion 8 and the seat cushion 6 are thick, so even if the seat height L1 is increased, the seat depth L2 can be shortened. By making the back cushion 8 and the seat cushion 6 thick in this way, it is possible to maintain a more suitable posture compared to when only the seat cushion 6 is thickened.

[0066] For example, multiple back cushions 8, 18 with different thicknesses may be prepared (see FIGS. 9 and 14). This allows the position of the back to be changed by replacing the multiple back cushions 8, 18. Specifically, the back cushion 18 (see FIG. 9) may be removed from the backrest 31, and a thicker back cushion 8 (see FIG. 14) may be attached to the backrest 31. The manner in which the multiple back cushions 8, 18 with different thicknesses are replaced can be changed according to the design specifications.

[0067] <Action and effect> As described above, the furniture system 1 of the above embodiment comprises the support structure 2 placed on the floor surface F, the seat 30 supported by the support structure 2, the optional member 4 arranged side by side to the left and right of the seat 30 in a plan view and supported by the support structure 2, and the connecting member 5 provided between the support structure 2 and the optional member 4 so as to be detachable from each of the support structure 2 and the optional member 4 and configured to change the relative positional relationship between the seat 30 and the optional member 4. The furniture system 1 is configured to be switchable between a first state in which the support structure 2 and the optional member 4 are connected without the connecting member 5, and a second state in which the support structure 2 and the optional member 4 are connected via the connecting member 5. According to this configuration, when switched to the first state, the optional member 4 is connected to the support structure 2 without the connecting member 5. On the other hand, when switched to the second state, the optional member 4 is connected to the support structure 2 via the connecting member 5. Therefore, it is possible to provide a furniture system 1 that can be changed into various forms.

[0068] In the above embodiment, the support structure 2 is configured to be switchable between a third state in which the support structure 2 and the optional member 4 are connected via a connecting member 105 that is different from the second state, and a fourth state in which the support structure 2 and the optional member 4 are connected via a connecting member 205 that is different from the third state. According to this configuration, when switched to the third state, the optional member 4 is connected to the support structure 2 via a connecting member 105 that is different from that in the second state. On the other hand, when switched to the fourth state, the optional member 4 is connected to the support structure 2 via a connecting member 205 that is different from that in the third state. Therefore, it is possible to change to various other modes.

[0069] In the above embodiment, the optional member 4 includes an armrest 40. The armrest 40 is configured so that its position in the up-down direction relative to the seat 30 can be changed by switching between a first state and a second state. This configuration makes it possible to change the height of the armrest 40 relative to the seat 30. If the armrest 40 is set higher than a predetermined height relative to the seat 30, it can assist the seated person in standing up. On the other hand, if the armrest 40 is set lower than a predetermined height relative to the seat 30, the elbows are less likely to get in the way of people who want to sit comfortably.

[0070] In the above embodiment, the armrest 40 is configured so that the inclination of the armrest 40 relative to the seat 30 can be changed by switching between the first state and the third state when viewed from the left and right direction. This configuration makes it possible to change the inclination of the armrest 40 relative to the seat 30 to tilt forward or backward. When the armrest 40 is tilted forward relative to the seat 30, it fits comfortably to the arms when sitting and makes it easier to place the hands on it when standing up. On the other hand, when the armrest 40 is tilted backward relative to the seat 30, the elbows do not get in the way for people who want to sit comfortably when sitting and it helps them stand up when standing up.

[0071] In the above embodiment, the armrest 40 is configured so that its position in the front-rear direction relative to the seat 30 can be changed by switching between the first state and the fourth state. According to this configuration, by changing the front-to-back position of the armrest 40 relative to the seat 30, it is possible to change the seat in a variety of ways.

[0072] In the above embodiment, the armrests 40 are disposed on both sides of the seat 30 in the left-right direction. According to this configuration, the seated occupant can use the armrests 40 on both the left and right sides, which can more effectively assist the seated occupant in standing up.

[0073] In the above embodiment, the support structure 2 includes a support rod 20 extending in the left-right direction. The optional member 4 is provided with an option-side recess 4d that faces upward and into which the support rod 20 can fit. The connecting member 5 includes a connecting main body 50 that is disposed between the support rod 20 and the optional member 4. The upper surface of the connecting main body 50 is provided with a connecting-side protrusion 51 that protrudes upward and can fit into the option-side recess 4d. The lower surface of the connecting main body 50 is provided with a connecting-side recess 52 that faces upward and into which the support rod 20 can fit. According to this configuration, when connection is made without using the connecting member 5, the optional member 4 can be firmly connected to the support rod 20 by fitting the optional member side recess 4d into the support rod 20. On the other hand, when connection is made via the connecting member 5, the connecting side protrusion 51 is fitted into the optional member side recess 4d and the support rod 20 is fitted into the connecting side recess 52, thereby enabling the connecting member 5 to be firmly connected to each of the optional member 4 and the support rod 20.

[0074] In the above embodiment, the connecting-side protrusion 51 is fitted into the optional-side recess 4d. The support rod 20 is fitted into the connecting-side recess 52. The furniture system 1 includes a receiving member 55 that is fastened to the support rod 20 by being fastened to the optional member 4 via the connecting member 5. According to this configuration, with the connecting side convex portion 51 engaged with the optional side recess 4d and the support rod 20 engaged with the connecting side recess 52, the receiving member 55 is tightened and fixed to the optional member 4 via the connecting member 5, thereby firmly fixing the optional member 4, connecting member 5 and receiving member 55 to the support rod 20.

[0075] In the above embodiment, the connecting member 105 is fastened and fixed to the optional member 4 with the connecting side protrusion 151 fitted into the optional side recess 4d. The support rod 20 is fitted into the connecting side recess 152. The furniture system 1 includes a receiving member 55 fastened and fixed to the connecting member 105 and thereby fixed to the support rod 20. According to this configuration, the connecting member 105 is tightened and fixed to the optional member 4 with the connecting side convex portion 151 engaged with the optional side recess 4d, and the receiving member 55 is tightened and fixed to the connecting member 105 with the support rod 20 engaged with the connecting side recess 152, thereby firmly fixing the optional member 4, connecting member 105 and receiving member 55 to the support rod 20.

[0076] In the above embodiment, a plurality of seats 30 are provided side by side in the left-right direction. According to this configuration, the relative positional relationship between the plurality of seats 30 and the optional member 4 can be changed by attaching and detaching the connecting member 5. Therefore, it is possible to change the positional relationship in a variety of ways.

[0077] In the above embodiment, the cushion member 6 is provided detachably above the seat 30 and is configured so that the position of the seat surface relative to the support structure 2 can be changed. According to this configuration, when the cushion member 6 is installed, the position of the seat surface relative to the support structure 2 becomes higher, thereby helping the seated person to stand up.

[0078] In the above embodiment, the cushion member 6 has a maximum thickness T at the rear portion in the front-rear direction of the seat 30. According to this configuration, when the seat 30 is tilted backward (for example, when the seat 30 is designed to be deeply seated), the seat surface can be raised so as to be flat.

[0079] For example, if the seat is designed to be deep, it is likely that elderly people and pregnant women who require support for their legs and hips will have difficulty standing up. In contrast, according to the embodiment, by raising the armrests above a certain level relative to the seat or tilting the armrests forward relative to the seat, elderly people and pregnant women who require support for their legs and hips can be assisted in standing up.

[0080] For example, if the seat height is increased beyond a predetermined level, the standing-up assistance effect increases, but it is highly likely that it becomes difficult to sit comfortably. Also, even if the seat height remains standard and the armrest height is increased beyond a predetermined level, it can still assist in standing up. According to an embodiment, the relative positional relationship between the seat and the armrests is configured to be changeable, so the armrest height can be increased beyond a predetermined level. Therefore, the user can sit comfortably, while the high armrest height can assist in standing up.

[0081] Furthermore, according to the embodiment, even if multiple seats are configured as an integrated unit, some seats can have high armrests and other seats can have standard height armrests. For example, each seat can be a standard seat with a low seat and armrests, a first priority seat with a low seat and high armrests, or a second priority seat with a high seat and armrests. Therefore, multiple types of seats can be provided within a single furniture system.

[0082] <Modification> In the above embodiment, an example has been described in which the fixture system is switchable between a third state in which the support structure and the optional member are connected via a connecting member different from that in the second state, and a fourth state in which the support structure and the optional member are connected via a connecting member different from that in the third state. However, this is not limited to this. For example, the fixture system may be configured to be switchable from the first state or the second state to the third state, but not switchable to the fourth state. For example, the fixture system may be configured to be switchable from the first state or the second state to the third state or the fourth state. It is sufficient that the fixture system is configured to be switchable at least between the first state and the second state. The manner of switching to a state different from the second state can be changed according to the design specifications.

[0083] In the above embodiment, the optional component includes an armrest, but is not limited thereto. For example, the optional component may include a table. For example, the optional component may include a connecting component such as a USB (Universal Serial Bus) connector or a LAN (Local Area Network) connector. For example, the optional component may include at least one of an armrest, a table, and a connecting component, and / or a combination thereof. The configuration of the optional component can be changed according to design specifications.

[0084] In the above embodiment, an example has been described in which the armrest is configured to be changeable in its vertical position relative to the seat by switching between a first state and a second state, but this is not limited to this. For example, the armrest may be configured to be changeable in tilt relative to the seat, changeable in its front-to-back position relative to the seat, changeable in its left-to-right position relative to the seat, changeable in its rotation position around an axis along the vertical direction, or changeable in a combination of these by switching between the first state and the second state. It is sufficient for the furniture system to be configured so that the relative positional relationship between the seat and the optional component can be changed. The configuration for changing the relative positional relationship between the seat and the optional component can be changed according to design specifications.

[0085] In the above embodiment, an example has been described in which the armrest is configured to change its inclination relative to the seat by switching between a first state and a third state when viewed from the left and right, but this is not limited to this. For example, the armrest may be configured to change its position in the front-to-back direction relative to the seat, its position in the left-to-right direction relative to the seat, its rotational position around an axis along the up-down direction, or a combination of these, by switching between the first state and the third state. It is sufficient for the furniture system to be configured so that the relative positional relationship between the seat and the optional component can be changed. The configuration for changing the relative positional relationship between the seat and the optional component can be changed according to design specifications.

[0086] In the above embodiment, an example has been described in which the armrest is configured to be changeable in its position in the front-to-back direction relative to the seat by switching between the first state and the fourth state, but this is not limited thereto. For example, the armrest may be configured to be changeable in its position in the left-to-right direction relative to the seat by switching between the first state and the fourth state, or it may be configured to be changeable in its rotational position around an axis along the up-down direction, or it may be configured to be changeable in a combination of these. The furniture system may be configured so that the relative positional relationship between the seat and the optional component can be changed. The configuration for changing the relative positional relationship between the seat and the optional component can be changed according to the design specifications.

[0087] In the above embodiment, the armrests are disposed on both sides of the seat in the left-right direction, but this is not limiting. For example, the armrests may be disposed on one side of the seat in the left-right direction. For example, the armrests may be disposed on one side of the seat in the left-right direction, but not on the other side of the seat in the left-right direction. The arrangement of the armrests in the left-right direction of the seat can be changed according to the design specifications.

[0088] In the above embodiment, an example has been described in which the support structure includes a support rod extending in the left-right direction, but this is not limited thereto. For example, the support structure does not have to include a support rod extending in the left-right direction. For example, the support structure may include a support frame extending in a direction intersecting the left-right direction. For example, the optional member may be supported by the support frame. For example, the optional member may be supported on a part of the support structure other than the support rod. The configuration of the support structure can be changed according to design specifications.

[0089] In the above embodiment, an example has been described in which the optional component has an option-side recess that is recessed upward and into which the support rod can fit, but this is not limited to this. For example, the optional component may have an option-side abutment that can abut against the support rod. For example, the optional component may not have an option-side recess. For example, when connecting without a connecting component, the optional component may be fastened and fixed to the support rod with the option-side abutment abutting against the support rod. The manner in which the optional component is connected to the support rod can be changed according to the design specifications.

[0090] In the above embodiment, the connecting member includes a connecting body portion disposed between the support rod and the optional component, and the upper surface of the connecting body portion is provided with a connecting-side protrusion that protrudes upward and can fit into the optional component-side recess. However, this is not limited to this. For example, the upper surface of the connecting body portion does not need to be provided with a connecting-side protrusion. For example, when connecting via a connecting member, the connecting member may be fastened to the optional component with the upper surface of the connecting body portion abutting against the optional component. The manner in which the connecting member is connected to the optional component can be changed according to the design specifications.

[0091] In the above embodiment, an example was described in which the underside of the connecting body is provided with a connecting-side recess that is recessed upward and into which the support rod can fit, but this is not limited to this. For example, the underside of the connecting body does not have to be provided with a connecting-side recess. For example, when connecting via a connecting member, the connecting member may be tightened and fixed to the support rod with the underside of the connecting body abutting against the support rod. The manner in which the connecting member is connected to the support rod can be changed depending on the design specifications.

[0092] In the above embodiment, an example has been described in which the connecting-side convex portion is fitted into the optional-side recess, the support rod is fitted into the connecting-side recess, and the furniture system includes a receiving member fixed to the support rod by being fastened to the optional member via a connecting member. However, this is not limited to this. For example, the furniture system does not need to include a receiving member. For example, the connecting-side convex portion may be fitted into the optional-side recess and the support rod may be fastened to the optional member via a connecting member using a bolt or the like, with the connecting-side convex portion fitted into the optional-side recess and the support rod fitted into the connecting-side recess. For example, the optional member and the connecting member may be connected to the support rod by fitting or press-fitting the connecting-side convex portion into the optional-side recess and fitting or press-fitting the support rod into the connecting-side recess. The manner in which the optional member and / or connecting member are connected to the support rod can be changed according to design specifications.

[0093] In the above embodiment, an example has been described in which the connecting member is fastened to the optional member with the connecting-side convex portion fitted into the optional-side concave portion, the support rod is fitted into the connecting-side concave portion, and the furniture system includes a receiving member fastened to the support rod by being fastened to the connecting member. However, this is not limited to this. For example, the furniture system does not need to include a receiving member. For example, the connecting member may be fastened to the optional member with the connecting-side convex portion fitted into the optional-side concave portion, and the connecting member may be fastened to the support rod with a bolt or the like with the support rod fitted into the connecting-side concave portion. For example, the connecting-side convex portion may be fitted or press-fitted into the optional-side concave portion, and the support rod may be fitted or press-fitted into the connecting-side concave portion, thereby connecting the optional member and the connecting member to the support rod. The manner in which the optional member and / or connecting member are connected to the support rod can be changed according to design specifications.

[0094] In the above embodiment, an example was described in which multiple seats are arranged side by side in the left-right direction, but this is not limited to this. For example, multiple seats do not have to be provided. For example, the furniture system may have only one seat. The installation mode of the seats can be changed depending on the design specifications.

[0095] In the above embodiment, an example has been described in which a cushion member is provided detachably above the seat and configured to change the position of the seat surface relative to the support structure, but this is not limited to this. For example, the furniture system may not include a cushion member. For example, the seat may be configured to change the position of the seat surface relative to the support structure. The installation mode of the cushion member can be changed according to design specifications.

[0096] In the above embodiment, the cushion member has the maximum thickness at the rear portion in the front-to-rear direction of the seat, but this is not limiting. For example, the cushion member may have the maximum thickness at the front portion in the front-to-rear direction of the seat. For example, the cushion member may have the maximum thickness at the outer portions in the front-to-rear and / or left-to-right directions of the seat. For example, the cushion member may have a uniform thickness in the front-to-rear direction of the seat. The thickness of the cushion member can be changed according to design specifications.

[0097] The above describes preferred embodiments of the present invention, but the present invention is not limited to these, and additions, omissions, substitutions, and other modifications to the configuration are possible within the scope of the spirit of the present invention, and the above-mentioned modifications can also be combined as appropriate. [Explanation of symbols]

[0098] 1. Fixture system 2...Support structure 4...Optional parts 4d...Optional recess 5,105,205...Connecting members 6...Cushion member 20…Support rod 30…za 40...Armrest 50, 150, 250...Connecting body 51,151,251...Connection side convex part 52, 152, 252...Connection side recess 55...Receiving member F…Floor surface T: Maximum thickness

Claims

1. a support structure installed on a floor surface; a seat supported by the support structure; optional members arranged side by side in the left-right direction of the seat in a plan view and supported by the support structure; a connecting member provided between the support structure and the optional member so as to be detachable from each of the support structure and the optional member, and configured to change the relative positional relationship between the seat and the optional member; The optional member is configured to be switchable between a first state in which the support structure and the optional member are connected without the connecting member and a second state in which the support structure and the optional member are connected via the connecting member. Fixture system.

2. a third state in which the support structure and the optional member are connected via a connecting member different from that in the second state, and a fourth state in which the support structure and the optional member are connected via a connecting member different from that in the third state; The fixture system of claim 1 .

3. The optional member includes an armrest, The armrest is configured to be able to change its position in the up-down direction relative to the seat by switching between the first state and the second state. A fixture system according to claim 1 or 2.

4. The optional member includes an armrest, When viewed from the left-right direction, the armrest is configured to be switched between the first state and the third state, thereby changing the inclination of the armrest with respect to the seat. The fixture system of claim 2.

5. The optional member includes an armrest, The armrest is configured to be able to change its position in the front-rear direction relative to the seat by switching between the first state and the fourth state. A fixture system according to claim 2 or 4.

6. The optional member includes an armrest, The armrests are arranged on both sides of the seat in the left-right direction. A fixture system according to claim 1 or 2.

7. The support structure includes a support rod extending in the left-right direction, The optional member is provided with an optional-side recess that is recessed upward and into which the support rod can be fitted, the connecting member includes a connecting body portion disposed between the support rod and the optional member, a connecting-side protrusion that protrudes upward and can be fitted into the option-side recess is provided on the upper surface of the connecting body; A connecting side recess that is recessed upward and into which the support rod can be fitted is provided on the lower surface of the connecting body portion. A fixture system according to claim 1 or 2.

8. the connecting-side protrusion is fitted into the optional-side recess, The support rod is fitted into the connection-side recess, The apparatus further includes a receiving member that is fastened to the optional member via the connecting member and thereby fixed to the support rod. The fixture system of claim 7.

9. the connecting member is fastened and fixed to the optional member in a state in which the connecting-side convex portion is fitted into the optional-side concave portion, The support rod is fitted into the connection-side recess, The apparatus further includes a receiving member that is fastened to the connecting member and thereby fixed to the support rod. The fixture system of claim 7.

10. The seats are provided in plurality and arranged side by side in the left-right direction. A fixture system according to claim 1 or 2.

11. The seat further includes a cushion member that is detachably provided above the seat and configured to change the position of the seat surface relative to the support structure. A fixture system according to claim 1 or 2.

12. The cushion member has a maximum thickness at a rear portion in the front-rear direction of the seat. The fixture system of claim 11.

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