Chairs and desks

Abstract

To provide a chair which does not apply burden on a seated person.SOLUTION: A chair 10 includes a support base where a user can sit on an upper surface side and a bottom surface part 12 to be grounded is arranged on a lower surface side. The support base 11 includes: a sitting area 20 to be set in at least a part of the upper surface side; and a projection part 30A to be projected forward from the sitting area 20. The sitting area 20 is formed to be inclined forward with respect to a horizontal surface. The chair 10 has ear parts 40, 40 formed to be projected in a lateral direction with respect to the support base body 11. The ear parts 40, 40 are flush with a lower end part 13 of the support base 11 on the lower surface side of the support base 11. A sitting surface part 21 is arranged in the sitting area 20. A projection end 31 of the projection part 30 is formed by swelling in a curved surface shape.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a chair and a desk suitable for use with the chair, and more particularly to a chair and desk suitable for office work such as computer work. [Background technology]

[0002] Conventionally, a work desk has been used for various office work (for example, Patent Document 1). The office work includes, for example, operating a laptop computer placed on the desk, writing notes, etc. Furthermore, an office chair has been used to perform the office work (for example, Patent Document 2).

[0003] The desk described in Patent Document 1 has a rectangular top board, and when a laptop computer is placed on the top board, the cable is folded back at the back of the top board and guided downward. The middle part of the cable is stored in a storage compartment. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 7-34732 [Patent Document 2] Japanese Utility Model Application Publication No. 2-124063 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the desk described in Patent Document 1, the cables are folded back at the back of the tabletop, so if there is a wall in the depth direction of the desk, it is necessary to provide space between the wall and the back side of the desk. Therefore, it is necessary to set up the desk while taking into account the space at the back side of the desk as appropriate, which makes the desk installation complicated.

[0006] Furthermore, it is believed that when a person sits in the chair described in Patent Document 2, the posture of the person's upper body becomes upright or tilts backward. Therefore, when a person sits in the chair described in Patent Document 2 and works at a desk such as that described in Patent Document 1, the person needs to tilt their neck forward or tilt their upper body forward so that it is away from the backrest.

[0007] However, tilting the neck or posture forward places a great strain on the seated person. Therefore, when using the desks and chairs described in Patent Documents 1 and 2 to perform office work, it is difficult for the seated person to work for long periods of time. Furthermore, when forcing the seated person to lean forward as described above, the seated person may be tempted to cross their legs. However, chairs such as those described in Patent Document 2 have space at the knees, which may make it easy for the seated person to cross their legs. Thus, when a seated person crosses their legs, the seated person's posture is strained, which places a strain on the seated person's body.

[0008] Therefore, an object of the present invention is to provide a chair and a desk that does not put a burden on the person sitting on it, and also to provide a desk that allows for greater freedom in where it can be installed. [Means for solving the problem]

[0009] (1) The chair of the present invention, which is provided to solve the above-mentioned problems, is characterized in that it comprises a support base that can be seated on the upper side and has a bottom portion that can be placed on the lower side, and the support base has a seating area set on at least a part of the upper side and a protruding portion that protrudes forward beyond the seating area, and the seating area is formed so as to be tilted forward relative to the horizontal plane.

[0010] The chair described above has a protruding portion that protrudes forward from the seating area of the support base. Therefore, the protruding portion can separate the legs of the seated person, preventing the seated person from crossing their legs. This prevents the seated person from sitting in an awkward position, reducing the strain on the seated person's body. Furthermore, the seating area of the chair described above is formed so that it leans forward relative to the horizontal plane, allowing the seated person to naturally lean forward without strain. Therefore, a chair suitable for office work, particularly using a computer, can be provided.

[0011] (2) In the chair of the present invention described above, the support base has a support base main body formed to extend in the front-to-back direction and ear portions formed to protrude in the left-to-right direction relative to the support base main body, and it is preferable that the ear portions and the lower end portions of the support base main body are flush with each other on the underside of the support base.

[0012] With this configuration, the ears can prevent the support base body from tilting left or right, thereby preventing the chair from tipping left or right.

[0013] (3) The chair of the present invention may have a seat portion provided in the seating area, and the seat portion may be placed on the support base.

[0014] With this configuration, the seat surface portion can clearly indicate the seating position of the seated person, thereby preventing the seated person from sitting in a part other than the seating area, thereby preventing the seated person from being forced into an unnatural sitting posture.

[0015] (4) In the chair of the present invention described above, the protruding end of the protruding portion may be formed to bulge in a curved shape.

[0016] This configuration can reduce the impact when a seated person or the like comes into contact with the protruding portion. It also provides a chair with a rich design. The degree of bulging and curvature of the protruding end can be changed as needed. The shape of the protruding end can also be changed as needed to suit workability.

[0017] (5) In the chair of the present invention described above, it is preferable that either or both of the support base and the protruding portion are formed so as to increase in width from the front end side toward the rear side.

[0018] This configuration prevents the seated person from spreading their legs too far apart, allowing them to maintain a natural posture without strain. The width of the support base and protrusions in the left-right direction can be changed as needed to suit the seated person. The extent to which the support base and protrusions widen toward the rear can also be changed as needed.

[0019] (6) The desk of the present invention, which is provided to solve the above-mentioned problems, is a desk arranged to be paired with the above-mentioned chair, and has a top panel portion and support legs that support the top panel portion from below, and is characterized in that the top panel portion has a main area that extends in a planar shape across the depth and width directions, and a sub-area that protrudes toward the front in the depth direction from the main area, and the sub-area is provided on at least one of the widthwise sides of the main area.

[0020] The above-described desk is intended to be arranged to be paired with the above-described chair. Furthermore, since the top panel of the above-described desk is supported from below by support legs, a space is secured below the top panel to accommodate the chair and the feet of a seated person seated on the chair. Furthermore, the above-described desk has a main area whose top panel extends across the depth and width directions. Therefore, a seated person seated on the chair can work, for example, on a personal computer or the like placed on the main area in a natural, forward-leaning posture. Furthermore, the above-described desk allows a seated person to work while resting their elbows or arms on a secondary area (e.g., an armrest) provided on at least one of the widthwise sides of the main area. Therefore, a seated person seated on the chair can work while maintaining a moderate, forward-leaning posture without strain. This makes it possible to provide a desk suitable for the above-described chair.

[0021] (7) In the present invention, the surface of the sub-region may be formed so as to be continuous with the surface of the main region.

[0022] This configuration can prevent a difference in level between the surfaces of the sub-area and the main area, allowing the worker to use the sub-area smoothly.

[0023] (8) In the desk of the present invention described above, the main area may be formed in an arc shape that bulges out from the front side toward the back side in the depth direction.

[0024] With this configuration, the arc-shaped rear bulge at the rear of the main area can be used to abut against, for example, a flat wall. That is, the desk can be positioned so that the rear bulge faces the wall. This allows for a gap between both widthwise ends of the rear side of the desk and the wall. This allows for wiring from a computer or other device to be routed downward from the top surface of the tabletop through the gap. This eliminates the need for additional openings for wiring in the tabletop, allowing for a desk with a rich design.

[0025] Furthermore, the desk described above has an arc-shaped portion that bulges outward in an arc shape at the front of the main area in the depth direction. This allows a seated person sitting on the chair to approach the arc-shaped portion in a forward-leaning posture. This allows for a desk that is easy for the seated person to access the main area and is highly user-friendly. It also allows for a desk with a rich design.

[0026] (9) In the desk of the present invention described above, the support leg portion has a pair of side panels on both sides of the table top portion in the width direction, and a footrest is hung between the side panels along the width direction, and the footrest is preferably arranged at the lower end of the side panel at the rear side in the depth direction.

[0027] With this configuration, the footrest is positioned appropriately for the occupant who is seated in the chair and leaning forward, allowing the occupant to place their feet on the footrest naturally and without strain. This makes it possible to provide a desk that allows the occupant to work in a comfortable posture. [Effects of the Invention]

[0028] According to the present invention, it is possible to provide a chair or desk that does not put a burden on the person sitting on it, and also to provide a desk that allows for greater freedom in where it can be installed. [Brief explanation of the drawings]

[0029] [Figure 1] 1(a) is a plan view of a chair according to the present invention, and FIG. 1(b) is a bottom view of the chair. [Figure 2] FIG. 2(c) is a front view of the chair according to the first embodiment of the present invention, and FIG. 2(d) is a rear view of the chair. [Figure 3] FIG. 1(e) is a right side view of the chair according to the first embodiment of the present invention. [Figure 4] 1 is an explanatory diagram showing a state in which a seat portion is attached to a chair according to a first embodiment of the present invention. FIG. [Figure 5] 1 is an explanatory diagram showing a state in which the chair according to the present invention is used; [Figure 6] FIG. 1(a) is a plan view of a chair according to a second embodiment of the present invention, and FIG. 1(b) is a bottom view of the chair. [Figure 7] 10(c) is a front view of a chair according to a second embodiment of the present invention, and FIG. 10(d) is a right side view of the chair. [Figure 8] FIG. 1(a) is a plan view of a desk according to the present invention, and FIG. 1(b) is a bottom view of the desk. [Figure 9] (c) is a front view of the desk according to the present invention, and (d) is a rear view of the desk. [Figure 10] (e) is a left side view of the desk according to the present invention, and (f) is a right side view of the desk. [Figure 11]1 is an explanatory diagram showing a first state of use of a chair and a desk according to the present invention; [Figure 12] 1 is an explanatory diagram showing a first state of use of a chair and a desk according to the present invention as viewed from above; [Figure 13] FIG. 10 is an explanatory diagram showing a second state of use of the chair and desk according to the present invention. [Figure 14] FIG. 10 is an explanatory plan view of a second state of use of the chair and desk according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0030] <Regarding the first embodiment of the chair> A chair 10A according to a first embodiment of the present invention will be described in detail below with reference to Figures 1 to 5. Each of Figures 1 to 3 shows the chair 10A according to the present invention as viewed from five directions. Note that the left side view of the chair 10A according to the present invention is omitted because the right and left side shapes are symmetrical.

[0031] As shown in FIGS. 1 to 3, chair 10A includes a support base 11 (also referred to as support base main body 11) that constitutes the main body. In this embodiment, support base 11 is formed so that the main body extends from the front end toward the rear. In this embodiment, support base 11 widens from the front end toward the rear, and has a generally trapezoidal columnar shape. Support base 11 includes a bottom surface portion 12 formed on the underside, a seating area 20 that allows seating on the upper surface side, a protrusion 30 that protrudes forward beyond the seating area 20, a pair of ears 40, 40, etc.

[0032] The bottom surface portion 12 is formed in a flat shape on the underside of the support base main body 11. The bottom surface portion 12 is formed so as to be tilted forward with respect to the horizontal plane. Therefore, when the support base 11 is placed on the floor surface 1, the support base 11 is tilted forward (see FIG. 5).

[0033] The seating area 20 is formed to be inclined forward with respect to the horizontal plane. In this embodiment, the seating area 20 is formed flat on the upper surface side of the support base 11, and the bottom surface portion 12 is formed to be inclined forward with respect to the horizontal plane. Therefore, the seating area 20 is inclined forward with respect to the horizontal plane as a result of the bottom surface portion 12 inclining forward with respect to the horizontal plane. The degree of forward inclination of the seating area 20 with respect to the horizontal plane may be set to, for example, 3 to 10 degrees. Furthermore, the seating area 20 is configured so that a worker M (also referred to as seated person M) can be seated therein. In this embodiment, a seat surface portion 21 is formed as the seating area 20. Note that the seat surface portion 21 may be provided as appropriate, and it is also possible to seat directly or indirectly on the seating area 20 without providing the seat surface portion 21.

[0034] The seat surface portion 21 is a plate-like member formed to extend from near the center in the depth direction of the main body of the support base 11 toward the rear. The width of the seat surface portion 21 in the left-right direction is slightly larger than the width of the upper surface portion of the support base 11. As shown in FIG. 4 , a recess 22 is formed on the lower surface of the seat surface portion 21 to match the shape of the upper surface of the support base 11. The seat surface portion 21 can be detachably attached to the support base 11 by placing it on the upper surface of the support base 11 and engaging the recess 22 with the upper surface of the support base 11. Note that the seat surface portion 21 may be fixed to the support base 11. In this way, the provision of the seat surface portion 21 makes it possible to clearly indicate the position where the seated person M sits. This prevents the seated person M from sitting in a part other than the seating area. This prevents the seated person M from being forced into an unnatural sitting position.

[0035] The seat surface 21 is formed parallel to the upper surface of the support base 11, and as the support base 11 tilts forward, the seat surface 21 also tilts forward. Therefore, when seated, the seated person M can naturally and effortlessly adopt a forward-leaning posture in accordance with the seat surface 21. This makes it possible to provide a chair that is particularly suitable for office work using a computer, etc.

[0036] As shown in FIGS. 1 to 3, the protrusion 30A protrudes forward from the seat surface 21 (seating area 20). The protrusion end 31A of the protrusion 30A is formed to bulge in a curved shape. This can reduce the impact when a seated person M or the like comes into contact with the protrusion 30A. This also allows the chair 10A to have a rich design. The degree of bulging and curvature of the protrusion end 31A can be changed as appropriate. The shape of the protrusion end 31A can also be changed as appropriate to suit workability. The lower surface of the protrusion 30A is preferably formed to be flush with the bottom surface 12 of the support base 11. This allows the seating area 20 to tilt forward when the support base 11 is placed on the floor surface 1.

[0037] The ears 40, 40 are formed so as to protrude in the left-right direction relative to the support base main body 11. The lower ends 41, 41 of the ears 40, 40 are formed flush with the lower end 12 (also referred to as the bottom surface 12) of the support base main body 11 on the underside of the support base 11. Therefore, when the ears 40, 40 abut against the floor surface 1, it is possible to prevent the support base main body 11 from tilting left-right. This makes it possible to prevent the chair 10A from tipping left-right.

[0038] The above is the configuration of the chair 10A according to the first embodiment of the present invention. Next, the state of use of the chair 10A will be described below with reference to FIG.

[0039] As shown in the figure, when chair 10A is placed on floor surface 1, support base 11 tilts forward in accordance with the inclination of bottom surface 12. As a result, seat surface 21 tilts forward, and when seated person M sits on seat surface 21, seated person M assumes a forward-leaning posture. Furthermore, because protrusion 30A is positioned between both legs of seated person M, protrusion 30A can separate the legs of seated person M. This prevents seated person M from crossing their legs. This prevents seated person M from sitting in an awkward posture, and reduces the strain on the body of seated person M.

[0040] Furthermore, the protrusion 30A allows the seated person M to maintain a natural leg width. Furthermore, since the support base 11 and the protrusion 30A are formed so as to widen from the front end toward the rear, the seated person M's legs are prevented from spreading too far apart. This allows the seated person M to comfortably adopt a natural posture. Here, the left-right width of the support base 11 and the protrusion 30A can be changed as appropriate to suit the seated person M. Furthermore, the degree to which the support base 11 and the protrusion 30A widen toward the rear can also be changed as appropriate.

[0041] Furthermore, since the ears 40, 40 are in contact with the floor surface 1, tilting of the support base 11 in the left-right direction can be prevented even if the center of gravity of the seated person M moves in the left-right direction. Therefore, tipping over of the chair 10A can be prevented.

[0042] The above is a detailed description of the configuration and usage state of chair 10B according to a first embodiment of the present invention. Next, details of chair 10 according to a second embodiment of the present invention, in which the shape of protrusion 30A is modified, will be described below. Note that the second embodiment has the same configuration as chair 10 according to the first embodiment except for the shape of protrusion 30A, and therefore a description of the same configuration will be omitted. Also, please note that the same reference numerals are used for parts that are the same as those in the first embodiment.

[0043] <Regarding the second embodiment of the chair> 6 and 7 are four-sided views of a chair 10B according to a second embodiment of the present invention. The back view of the chair 10B is the same as that of the chair 10A according to the first embodiment (see FIG. 2(d)), and therefore is not shown. Furthermore, the right side view and left side view of the chair 10B are symmetrical, and therefore the left side view is not shown.

[0044] In the second embodiment, the protrusion 30B narrows toward the front side (front side) in the depth direction, and the protrusion end 31B is formed in a flat shape. That is, the protrusion 30B has a trapezoidal columnar shape. This improves workability. If design is prioritized, the protrusion end 31A of the protrusion 30A may be formed in a curved bulge shape as in the first embodiment.

[0045] The above is the configuration of the chair 10B according to the second embodiment of the present invention. Next, the desk 100 of the present invention, which is arranged to be paired with the above-mentioned chair 10 (10A, 10B), will be described in detail below with reference to Figures 8 to 12.

[0046] <About the desk> 8 to 10 are six-sided views of a desk 100 according to the present invention. The desk 100 comprises a top panel 110 and support legs 120 that support the top panel 110 from below.

[0047] 8(a), the top plate portion 110 is formed, for example, from a single plate-like member having a flat upper surface. The top plate portion 110 has a main region 111 and a sub-region 115. Note that the main region 111 and the sub-region 115 are separated for the sake of convenience of explanation, and the top plate portion 110 does not necessarily have to be separated into the main region 111 and the sub-region 115.

[0048] The main area 111 is an area that extends across the depth direction (front-to-back direction in the drawing) and width direction (left-to-right direction in the drawing) of the top panel 110. A personal computer, documents, and other work items can be placed on the upper surface of the main area 111. The main area 111 can be formed to an appropriate size suitable for office work, for example.

[0049] The main region 111 is formed in an arc shape that bulges from the near side toward the far side in the depth direction. This allows the main region 111 to have a far-side bulge 112. As shown in FIGS. 11 and 12 , by using the desk in a first configuration in which the far-side bulge 112 faces the window in a room, a user (worker M) can work in an open environment. Furthermore, the provision of the far-side bulge 112 allows wires from, for example, a laptop computer 5 to stably hang along the curved far-side bulge 112 and be guided downward from the upper surface of the top panel 110. Furthermore, as shown in FIGS. 13 and 14 , by arranging the desk in a second configuration in which the top panel 110 (desk 100) is arranged so that the protruding end of the far-side bulge 112 faces, for example, a wall 3 in the room, a gap can be formed between both left and right sides of the far-side bulge 112 and the wall 3. Therefore, for example, the wiring of the notebook computer 5 or the like can be led from the upper surface side of the top panel 110 to the lower side through the gap. Therefore, there is no need to form a separate opening for wiring in the top panel 110, and it is possible to provide a desk 100 with a rich design.

[0050] Furthermore, the main area 111 is formed with an arc portion 113 that bulges out in an arc shape toward the rear on the near side in the depth direction. Therefore, the seated person M seated on the chair 10 (10A, 10B) can approach the arc portion 113 in a forward-leaning posture. This makes it possible to provide a desk 100 that is easy for the seated person M to access the main area 111 and has good workability. It is also possible to provide a desk 100 that is rich in design.

[0051] In addition, by arranging the desk 100 to be paired with the chair 10 in the first form shown in Figures 11 and 12 or the second form shown in Figures 13 and 14, the occupant M seated in the chair 10 can work on a laptop computer 5 or the like placed in the main area 111 in a natural forward-leaning posture.

[0052] As shown in FIGS. 8 to 10 , the auxiliary area 115 is an area provided on at least one of the widthwise sides of the main area 111. In this embodiment, the auxiliary area 115 is provided on one right side of the widthwise side of the main area 111. The auxiliary area 115 is formed to protrude toward the front in the depth direction relative to the main area 111, forming an armrest. Therefore, as illustrated in the first configuration shown in FIGS. 11 and 12 and the second configuration shown in FIGS. 13 and 14 , a worker M (also referred to as a seated person M) can work with their elbows or arms resting on the auxiliary area 115. This allows the seated person M seated on the chair 10 to work while maintaining a moderately forward-leaning posture without strain. This makes it possible to provide a desk 100 that is suitable for the chair 10 described above. Furthermore, by arranging the auxiliary area 115, which functions as an armrest, along the wall 3 as shown in the first and second configurations, the desk 100 can be arranged to be used comfortably even in rooms where a large installation space is limited. Furthermore, by arranging the chair so that the user (worker M) faces the window when seated, as in the first form, it can be used in an open manner even when placed in a relatively small room. Therefore, even in situations where work or tasks must be performed in a room such as at home, such as in so-called teleworking, it can be used comfortably while minimizing the area of the room occupied by the desk and chair.

[0053] In this embodiment, the sub-region 115 is formed so that its surface is continuous with the surface of the main region 111. That is, the surface of the main region 111 and the surface of the sub-region 115 are formed flush with each other. This prevents steps from occurring on the surfaces of the sub-region 115 and the main region 111. Furthermore, the worker M can use the sub-region 115 smoothly.

[0054] The support leg 120 supports the top plate 110 from below. The support leg 120 has a pair of side plates 121, 121 erected on both sides of the top plate 110 in the width direction, and a footrest 122 disposed between the side plates 121, 121.

[0055] The side plates 121, 121 are set to an appropriate height that matches, for example, the chair 10. The side plates 121, 121 are formed in the depth direction from the front side to the back side. Therefore, the top plate 110 is supported by the side plates 121, 121 so as to be parallel to the floor surface 1. Therefore, a space is secured below the top plate 110 to accommodate the chair 10 and the legs of the seated person M seated on the chair 10.

[0056] As shown in Figures 10(e) and 10(f), the footrest 122 has a triangular cross section and extends in the width direction. The footrest 122 is placed between the side panels 121, 121 so as to slope upward from the front side to the back side in the depth direction. It is also desirable to position the footrest 122, for example, at the lower end of the side panels 121, 121 on the back side in the depth direction. This positions the footrest 122 in an appropriate position for the seated person M who is seated on the chair 10 and leans forward, allowing the seated person M to place their feet on the footrest 122 naturally and comfortably. It is also possible to provide a desk 100 that allows the seated person M to work in a comfortable posture.

[0057] The above are embodiments and modifications of the chair 10 and desk 100 of the present invention, but the chair 10 and desk 100 of the present invention are not limited to the above-mentioned embodiments and modifications, and various modifications can be made.

[0058] In this embodiment, the support base 11 is formed so that its width increases from the front side to the rear side. However, the shape of the support base 11 can be modified into various shapes. For example, the support base 11 can be formed into a triangular prism, a quadrangular prism, a trapezoidal prism, or the like. The support base 11 may also be formed so that its width increases from the upper end to the lower end. The seating area 20 of the support base 11 may be formed not only on a portion of the upper surface of the support base 11 but also over the entire surface. In this embodiment, the seating area 20 is configured to tilt forward by forming the bottom surface 12 of the support base 11 at an angle relative to the horizontal plane. However, various shapes of the seating area 20 that tilt forward relative to the horizontal plane can be employed. For example, the seating area 20 may be formed so as to tilt forward relative to the support base 11. The degree of forward tilt of the seating area 20 can be appropriately changed depending on the body shape of the seated person M, the type of work, and the like. The degree of forward tilt of the seating area 20 may be adjusted by, for example, a spacer.

[0059] The shape and size of the ears 40, 40 can be changed as appropriate to suit the support base main body 11. The positions at which the ears 40, 40 are formed can be arranged in various positions on the underside of the support base 11 as long as the positions are flush with the lower end 12 (bottom surface 12) of the support base main body 11. The number of ears 40 to be provided can be changed to suit the size of the support base 11. In such cases, it is desirable to arrange them in pairs on both the left and right sides.

[0060] In this embodiment, the seating area 20 is provided with a seat surface portion 21, but the seat surface portion 21 may be provided as appropriate, and the configuration may also be such that the seat surface portion 21 is not provided. When the seat surface portion 21 is provided, various types of seat surface portion 21 may be adopted, such as a type that is fixed to the support base 11 or a type that is detachable. The shape and size of the seat surface portion 21 may also be changed to various types. Furthermore, the seating area 20 and the seat surface portion 21 may be adopted in various types, such as a type that is divided into sections by color or a type in which part of the support base 11 is made of a different material (for example, an elastic material).

[0061] Furthermore, the shape and size of the protrusions 30 (30A, 30B) are not limited to those of the present embodiment, and various shapes and sizes may be adopted. The shape and size of the protrusions 30 may be formed to match the body shape of the seated occupant M, etc.

[0062] In this embodiment, the sub-area 115 on the desk 100 is provided on the right side of the main area 111 in the width direction, but the position where the sub-area 115 is provided can be changed as appropriate depending on the dominant hand of the worker M. For example, the sub-area 115 may be provided on both sides of the main area 111 in the width direction or on the left side in the width direction.

[0063] In this embodiment, the surface of the sub-region 115 is formed so as to be continuous with the surface of the main region 111. However, the surface of the sub-region 115 may be discontinuous with the surface of the main region 111. Whether the surfaces of the sub-region 115 and the main region 111 are continuous or discontinuous can be selected appropriately depending on the intended use of the sub-region 115 and the main region 111. The shape and size of the main region 111 can be changed appropriately depending on the intended use of the desk 100 and its installation location. The degree of bulging and the arc shape of the rear bulging portion 112 of the main region 111 can be changed appropriately. The degree of bulging and the arc shape of the arc portion 113 of the main region 111 can be changed appropriately depending on the body shape of the worker M and the forward tilt of the chair 10. The height of the top plate portion 110 of the desk 100 can be changed appropriately depending on the chair 10 used and the body shape of the worker M.

[0064] In this embodiment, the footrest 122 is hung between the side plates 121, 121 in the width direction, but the footrest 122 may be provided as needed. The shape and size of the footrest 122 can be changed as appropriate. In addition, not only one footrest 122 but also multiple footrests 122 can be provided.

[0065] The above are various modified examples of the chair 10 and desk 100 according to the present invention. Note that the present invention is not limited to the above-described embodiments and modified examples, and it will be readily apparent to those skilled in the art that other embodiments are possible within the scope of the claims and within the teachings and spirit of the present invention. [Industrial Applicability]

[0066] The chair of the present invention can be preferably used for office work such as working from home or working on a computer. The chair of the present invention can also be preferably used for watching television or reading. The desk of the present invention can also be preferably used for office work such as working on a computer. The desk of the present invention can also be preferably used as a pair with the chair of the present invention. [Explanation of symbols]

[0067] 1: Floor 3: Wall 10: Chair 10A: Chair 10B: Chair 11: Support stand (support stand body) 12: Bottom part (lower end part) 20: Seating area 21: Seat part 30:Protrusion 30A:Protrusion 30B:Protrusion 31A:Protruding end 31B:Protruding end 40:Ear part 41: Bottom end 100:Desk 110: Top plate 111: Main area 115: Sub-area 120: Support leg 121: Side panel 122: Footrest

Claims

1. A support base is provided which has a bottom surface portion on which the user can sit and which can be grounded on the bottom surface thereof, The support base is a seating area set on at least a portion of the upper surface side; a protruding portion that protrudes forward from the seating area and is positioned between the legs of the seated person, The seating area is formed to be tilted forward with respect to a horizontal plane, The protrusion is formed to tilt forward along the inclination of the seating area, and to prevent the seated person from crossing their legs by separating the legs of the seated person when they are seated in the seating area with the protrusion. A chair characterized by:

2. The support base is A support base main body formed to extend in the front-rear direction; Ear portions formed to protrude in the left and right directions relative to the support base body; and 2. The chair according to claim 1, wherein the ears and the lower end of the support base body are flush with each other on the underside of the support base.

3. A seating surface is provided in the seating area, 3. The chair according to claim 1, wherein the seat portion is placed on the support base.

4. The chair according to any one of claims 1 to 3, wherein the protruding end of the protruding portion is formed to bulge in a curved shape.

5. A chair as described in any one of claims 1 to 4, characterized in that either one or both of the support base and the protrusion are formed so as to widen from the front end side toward the rear end side.

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