Chair and desk

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 that can be suitably used together with the chair. More specifically, it relates to a chair and a desk suitable for office work such as PC work.

Background Art

[0002] Conventionally, in various office works, a work desk has been used (for example, Patent Document 1). As the above-mentioned office work, for example, operations such as a notebook computer placed on the desk and writing are performed. Also, when performing the above-mentioned office work, an office work chair is used (for example, Patent Document 2).

[0003] The desk described in Patent Document 1 has a top plate formed in a rectangular shape, and for a notebook computer placed on the top plate, a cable is folded downward on the back side in the depth direction of the top plate and guided downward. Also, the middle part of the cable is stored in a storage room.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, in the desk described in Patent Document 1, since the cable is folded on the back side in the depth direction of the top plate, when there is a wall in the depth direction of the desk, it is necessary to provide a space between the wall and the back side of the desk. Therefore, it is necessary to install the desk while appropriately considering the space on the back side of the desk, and there is a problem that the installation of the desk becomes complicated.

[0006] In addition, the chair described in Patent Document 2 is considered such that when a seated person sits down, the posture of the upper body of the seated person is upright or reclined. Therefore, when a seated person sits on the chair described in Patent Document 2 and performs work on a desk as described in Patent Document 1, it is necessary to tilt the head forward or tilt the upper body forward so that the upper body is separated from the backrest.

[0007] However, there is a problem that a great burden is imposed on the seated person in order to tilt the head forward or tilt the posture forward. Therefore, when performing office work or the like using the desk and chair described in Patent Documents 1 and 2, it has been difficult for the seated person to perform long-term work. Further, as described above, when the posture is forcibly tilted forward, the seated person may sometimes want to cross their legs as appropriate. However, in the chair described in Patent Document 2, since there is a space in front of the knees, there is a risk that the seated person can easily cross their legs. Thus, when the seated person crosses their legs, there is a problem that an unreasonable load is placed on the seated person's posture and a burden is placed on the seated person's body.

[0008] Therefore, an object of the present invention is to provide a chair and a desk that do not impose a burden on a seated person. Another object of the present invention is to provide a desk that can increase the degree of freedom in the installation location.

Means for Solving the Problems

[0009] (1) The chair of the present invention provided to solve the above-described problems includes a support base having a seating surface on the upper surface side and a bottom surface portion that can be grounded on the lower surface side, and the support base has a seating area set on at least a part of the upper surface side and a protruding portion that protrudes forward from the seating area, and the seating area is formed to be inclined forward with respect to the horizontal plane.

[0010] The above-described chair is configured to have a protruding portion that protrudes forward from the seating area of the support base. Therefore, since the space between the feet of the seated person can be partitioned by the protruding portion, the seated person can be prevented from crossing their legs. As a result, it is possible to prevent the seated person from sitting in an unnatural posture and reduce the burden on the body of the seated person. Further, since the seating area of the above-described chair is formed to incline forward with respect to the horizontal plane, the seated person can naturally assume a forward-inclined posture without difficulty. Therefore, it is possible to provide a chair particularly suitable for office work such as using a personal computer.

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

[0012] According to such a configuration, the ear portions can prevent the support base main body from tilting left and right. Therefore, it is possible to prevent the chair from tipping over in the left-right direction.

[0013] (3) In the chair of the present invention, a seat surface portion is provided in the seating area, and it is preferable that the seat surface portion is placed on the support base.

[0014] According to such a configuration, the seat surface portion can clarify the position where the seated person sits. Therefore, it is possible to prevent the seated person from sitting on a portion outside the seating area. As a result, it is possible to prevent the seated person from being forced into an unnatural seating posture.

[0015] (4) It is preferable that the protruding end of the protruding portion of the chair of the present invention described above is formed to bulge in a curved surface shape.

[0016] According to such a configuration, it is possible to mitigate the impact when the seated person or the like comes into contact with the protruding portion. Further, it is possible to provide a chair with high design quality. Here, the degree of bulging of the protruding end and the degree of the curved surface can be appropriately changed. Also, the shape of the protruding end can be appropriately changed according to the workability.

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

[0018] According to such a configuration, it is possible to suppress the legs of the seated person from opening too wide. Therefore, the seated person can take a natural posture without difficulty. Here, the width in the left - right direction of the support base and the protruding portion can be appropriately changed according to the seated person. Also, the degree of widening toward the rear side of the support base and the protruding portion can be appropriately changed.

[0019] (6) The desk of the present invention provided to solve the above - described problems is a desk arranged to be paired with the above - described chair, and has a top plate portion and support legs that support the top plate portion from below. The top plate portion has a main region that spreads in a planar shape in the depth direction and the width direction, and a sub - region that protrudes toward the front side in the depth direction with respect to the main region. The sub - region is provided on at least one of one side and the other side in the width direction of the main region.

[0020] The above - described desk is arranged to be paired with the above - described chair. Also, since the top plate portion of the above - described desk is supported by the support legs from below, a space for accommodating the chair and the legs of the seated person sitting on the chair is secured below the top plate portion. Further, the above - described desk has a main region where the top plate portion spreads on the surface in the depth direction and the width direction. Therefore, a seated person sitting on the chair can work on, for example, a personal computer placed on the main region in a natural forward - leaning posture. Also, the above - described desk allows the seated person to work with elbows or arms rested on a sub - region (for example, an elbow rest) provided on at least one of one side and the other side in the width direction of the main region. Therefore, a seated person sitting on the chair can work while maintaining a moderate forward - leaning posture without difficulty. Thereby, a desk suitable for the above - described chair can be provided.

[0021] (7) It is preferable that the surface of the sub-region of the present invention described above is formed so as to be continuous with the surface of the main region.

[0022] According to such a configuration, it is possible to suppress the occurrence of a step on the surfaces of the sub-region and the main region. Therefore, an operator can smoothly use the sub-region.

[0023] (8) It is preferable that the main region of the desk of the present invention described above is formed in an arc shape that bulges from the front side to the back side in the depth direction.

[0024] According to such a configuration, the arc-shaped back side bulging portion bulging on the back side in the depth direction of the main region can be used, for example, to abut against a flat wall. That is, the desk can be arranged so that the back side bulging portion of the desk faces the wall. Therefore, a gap can be secured between both side portions in the width direction on the back side of the desk and the wall. Thereby, wirings such as those of a personal computer can be led from the upper surface side to the lower surface side of the top plate portion through the gap. Therefore, it is not necessary to separately form an opening for wirings in the top plate portion, and a desk with excellent design can be provided.

[0025] Further, in the desk described above, an arc portion that bulges in an arc shape toward the back side direction is formed on the front side in the depth direction of the main region. Therefore, a seated person sitting on the chair can approach the arc portion in a forward leaning posture. Thereby, a desk with good workability that allows the seated person to easily access the main region can be provided. Also, a desk with excellent design can be provided.

[0026] (9) The desk of the present invention described above preferably has a pair of side plates on both sides in the width direction of the top plate portion, and a footrest is spanned along the width direction between the both side plates, and the footrest is arranged at the lower end side on the back side in the depth direction of the side plate.

[0027] According to such a configuration, since the footrest is positioned at an appropriate position with respect to a seated person who is sitting on the chair and is in a forward-leaning posture, the seated person can naturally place their feet on the footrest without difficulty. Thereby, it is possible to provide a desk that enables the seated person to work in a comfortable posture.

Advantages of the Invention

[0028] According to the present invention, it is possible to provide a chair and a desk that do not impose a burden on the seated person. In addition, it is possible to provide a desk that can increase the degree of freedom in the installation location.

Brief Description of the Drawings

[0029]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Embodiments for Carrying Out the Invention

[0030] ≪Regarding the First Embodiment of the Chair≫ The chair 10A according to the first embodiment of the present invention will be described in detail below with reference to FIGS. 1 to 5. Each of FIGS. 1 to 3 shows the chair 10A according to the present invention as viewed from five directions. Note that it should be noted that the left side view is omitted because the shape of the right side surface and the shape of the left side surface of the chair 10A according to the present invention are symmetric.

[0031] As shown in FIGS. 1 to 3, the chair 10A includes a support base 11 (also referred to as a support base body 11) that constitutes the main body. In the present embodiment, the support base 11 is formed so that the main body extends from the front end side toward the rear end side. In the present embodiment, the support base 11 is widened as it goes from the front end side toward the rear end side, and has a substantially trapezoidal columnar shape. The support base 11 includes a bottom surface portion 12 formed on the lower surface side, a seating area 20 that enables seating on the upper surface side, a protruding portion 30 that protrudes toward the front side of the seating area 20, a pair of ear portions 40, 40, etc.

[0032] The bottom surface portion 12 is formed in a planar shape on the lower surface side of the support base body 11. The bottom surface portion 12 is formed so as to be inclined 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 assumed to be inclined forward (see FIG. 5).

[0033] The seating area 20 is formed to incline forward with respect to the horizontal plane. In the present 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 incline forward with respect to the horizontal plane. Therefore, since the bottom surface portion 12 inclines forward with respect to the horizontal plane, the seating area 20 is made to incline 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. Also, the seating area 20 is configured such that an operator M (also referred to as a seated person M) can sit. In the present 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 may be configured to sit 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 support base 11 main body toward the back side. The seat surface portion 21 is formed such that the width 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, the seat surface portion 21 has a concave portion 22 formed on the lower surface side to conform to 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 side of the support base 11 and engaging the concave portion 22 with the upper surface side of the support base 11. Note that the seat surface portion 21 may be fixed to the support base 11. By providing the seat surface portion 21 in this way, the position where the seated person M sits can be clarified. Therefore, it is possible to prevent the seated person M from sitting on a portion outside the seating area. Thereby, it is possible to prevent an unreasonable burden from being placed on the sitting posture of the seated person M.

[0035] The seat surface portion 21 is formed parallel to the upper surface of the support base 11, and is configured to incline forward along with the forward inclination of the support base 11. Therefore, when the seated person M sits, the seated person M can naturally take a forward inclination posture without difficulty in accordance with the seat surface portion 21. Therefore, it is possible to provide a chair particularly suitable for office work such as using a personal computer.

[0036] As shown in FIGS. 1 to 3, the protruding portion 30A is formed to protrude forward from the seat surface portion 21 (seating area 20). The protruding end 31A of the protruding portion 30A is formed to bulge in a curved surface shape. Therefore, the impact when the seated person M or the like comes into contact with the protruding portion 30A can be alleviated. In addition, a chair 10A with rich design can be provided. Here, the degree of bulging of the protruding end 31A and the degree of the curved surface can be appropriately changed. In addition, the shape of the protruding end 31A can be appropriately changed according to the workability. Further, the lower surface side of the protruding portion 30A is preferably formed flush with the bottom surface portion 12 of the support base 11. Thereby, when the support base 11 is placed on the floor surface 1, the seating area 20 can be tilted forward.

[0037] The ears 40, 40 are formed to protrude in the left - right direction with respect to the support base main body 11. The lower end portions 41, 41 of the ears 40, 40 are formed flush with the lower end portion 12 (also referred to as the bottom surface portion 12) of the support base main body 11 on the lower surface side of the support base 11. Therefore, when the ears 40, 40 come into contact with the floor surface 1, the support base main body 11 can be suppressed from tilting left and right. Therefore, the chair 10A can be suppressed from falling down in the left - right direction.

[0038] The above is the configuration of the chair 10A according to the first embodiment of the present invention. Next, the usage state of the chair 10A will be described below with reference to FIG. 5.

[0039] As shown in the figure, when the chair 10A is placed on the floor surface 1, the support base 11 tilts forward according to the inclination of the bottom surface portion 12. Thereby, the seat surface portion 21 tilts forward, and when the seated person M sits on the seat surface portion 21, the seated person M assumes a forward - tilted posture. In addition, since the protruding portion 30A is located between both feet of the seated person M, the space between both feet of the seated person M can be partitioned by the protruding portion 30A. Therefore, the seated person M can be suppressed from crossing their legs. Thereby, the seated person M can be suppressed from sitting in an unnatural posture, and the burden on the body of the seated person M can be reduced.

[0040] In addition, due to the protruding portion 30A, the seated person M can maintain a natural foot width. Also, since the support base 11 and the protruding portion 30A are formed so as to widen from the front end side toward the rear side, it is possible to suppress the feet of the seated person M from opening too wide. Therefore, the seated person M can take a natural posture without difficulty. Here, the width of the support base 11 and the protruding portion 30A in the left-right direction can be appropriately changed according to the seated person M. Also, the degree of widening of the support base 11 and the protruding portion 30A toward the rear side can be appropriately changed.

[0041] In addition, since the ear portions 40, 40 are in contact with the floor surface 1, even if the center of gravity of the seated person M moves in the left-right direction, it is possible to suppress the support base 11 from tilting in the left-right direction. Therefore, it is possible to suppress the chair 10A from tipping over.

[0042] The above is the details regarding the configuration and usage state of the chair 10B according to the first embodiment of the present invention. Next, the details of the chair 10 according to the second embodiment of the present invention in which the shape of the protruding portion 30A is changed will be described below. Note that the second embodiment has the same configuration as the chair 10 according to the first embodiment except for the shape of the protruding portion 30A, so the description of the same configuration will be omitted. Also, note that the same parts as those in the first embodiment are denoted by the same reference numerals.

[0043] ≪Regarding the second embodiment of the chair≫ Figs. 6 to 7 are four views of the chair 10B according to the second embodiment of the present invention. Note that since the rear view of the chair 10B is the same as that of the chair 10A according to the first embodiment (see Fig. 2(d)), the illustration thereof is omitted. Also, since the right side view and the left side view of the chair 10B are symmetric, the left side view is omitted.

[0044] In the second embodiment, the protruding portion 30B is narrowed toward the front side (front side) in the depth direction, and the protruding end 31B is formed in a planar shape. That is, the protruding portion 30B has a trapezoidal columnar shape. Thereby, the workability can be improved. When giving priority to design, the protruding end 31A of the protruding portion 30A may be formed to bulge in a curved surface 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 arranged to be paired with the above-described chairs 10 (10A, 10B) will be described in detail below with reference to FIGS. 8 to 12.

[0046] ≪Regarding the desk≫ FIGS. 8 to 10 are six views of the desk 100 according to the present invention. The desk 100 includes a top plate portion 110 and support legs 120 that support the top plate portion 110 from below.

[0047] As shown in FIG. 8(a), the top plate portion 110 is formed of, for example, 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 divided for convenience of explanation, and the top plate portion 110 does not necessarily have to be divided into the main region 111 and the sub-region 115.

[0048] The main region 111 is a region that extends over the depth direction (front-rear direction in the drawing) and the width direction (left-right direction in the drawing) of the top plate portion 110 on the surface. Work computers, materials, and other work supplies can be placed on the upper surface of the main region 111. The main region 111 can be formed in an appropriate size suitable for office work, for example.

[0049] Further, the main area 111 is formed in an arc shape that bulges from the front side to the back side in the depth direction. Thus, the main area 111 is supposed to have a back-side bulging portion 112. Here, as shown in FIGS. 11 and 12, by using it in the first form arranged so that the back-side bulging portion 112 faces the window side in the living room, the user (operator M) can work in an open environment. Also, since the back-side bulging portion 112 is provided, for example, wiring such as a notebook computer 5 can be stably hung along the back-side bulging portion 112 having a curved shape and guided from the upper surface side to the lower surface side of the top plate portion 110. Further, as shown in FIGS. 13 and 14, by arranging it in the second form in which the top plate portion 110 (desk 100) is arranged so that the protruding end of the back-side bulging portion 112 faces, for example, the wall 3 inside the room, a gap can be formed between both left and right side portions of the back-side bulging portion 112 and the wall 3. Therefore, for example, wiring such as a notebook computer 5 can be guided from the upper surface side to the lower surface side of the top plate portion 110 through the gap. Therefore, it is not necessary to separately form an opening for wiring on the top plate portion 110, and a desk 100 with excellent design can be provided.

[0050] Also, an arc portion 113 that bulges in an arc shape toward the back side is formed in the main area 111 on the front side in the depth direction. Therefore, a seated person M sitting on the chair 10 (10A, 10B) can approach the arc portion 113 in a forward-leaning posture. Thereby, it is possible to provide a desk 100 with good workability that allows the seated person M to easily access the main area 111. Also, a desk 100 with excellent design can be provided.

[0051] Also, in the first form shown in FIGS. 11 and 12 and the second form shown in FIGS. 13 and 14, by arranging the desk 100 so as to be paired with the chair 10, the seated person M sitting on the chair 10 can work on a notebook computer 5 or the like placed on the main area 111 in a natural forward-leaning posture.

[0052] As shown in FIGS. 8 to 10, the sub-region 115 is a region provided on at least one of one side and the other side in the width direction of the main region 111. In the present embodiment, the sub-region 115 is provided on one side on the right side in the width direction of the main region 111. Further, the sub-region 115 is formed so as to protrude forward in the depth direction with respect to the main region 111, forming an elbow rest. Therefore, as exemplified in the first form shown in FIGS. 11 and 12 and the second form shown in FIGS. 13 and 14, the operator M (also referred to as the seated person M) can work with an elbow or an arm rested on the sub-region 115. Therefore, the seated person M sitting on the chair 10 can work while maintaining a moderately forward-leaning posture without difficulty. Thereby, the desk 100 suitable for the chair 10 described above can be provided. Further, as shown in the first form and the second form, by arranging the sub-region 115 functioning as an elbow rest along the wall 3, it can be arranged so as to be comfortably usable even in a living room where a large installation space cannot be secured. Further, by arranging it so as to face the window side in the state where the user (operator M) is seated as in the first form, even when it is arranged in a living room that is not so large, it can be used in an open manner. Therefore, even in a situation where work or operation must be performed in a living room such as at home like so-called telework, it can be comfortably used while minimizing the area occupied by the desk and chair in the living room.

[0053] Further, in the present embodiment, the surface of the sub-region 115 is formed to be 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 flush. Therefore, it is possible to suppress the occurrence of a step on the surfaces of the sub-region 115 and the main region 111. Further, the operator M can use the sub-region 115 smoothly.

[0054] The support legs 120 are configured to support the top plate portion 110 from below. The support legs 120 include a pair of side plates 121, 121 erected on both sides in the width direction of the top plate portion 110, and a footrest 122 disposed between the side plates 121, 121.

[0055] The side plates 121, 121 are set to an appropriate height corresponding to, for example, the chair 10. Further, the side plates 121, 121 are formed from the front side toward the back side along the depth direction. Accordingly, the top plate portion 110 is supported by the side plates 121, 121 so as to be parallel to the floor surface 1. Therefore, a space for accommodating the chair 10 and the feet of the seated person M seated on the chair 10 is secured below the top plate portion 110.

[0056] As shown in FIGS. 10(e) and 10(f), the footrest 122 is formed with a triangular cross-section and is formed to extend along the width direction. The footrest 122 is spanned between the side plates 121, 121 so as to slope upward from the front side toward the back side in the depth direction. Further, the footrest 122 is preferably disposed, for example, at the lower end side on the back side in the depth direction of the side plates 121, 121. Thereby, since the footrest 122 is positioned at an appropriate position with respect to the seated person M who is seated on the chair 10 and is in a forward-leaning posture, the seated person M can naturally place their feet on the footrest 122 without difficulty. Further, it is possible to provide a desk 100 that enables the seated person M to work in a comfortable posture.

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

[0058] In this embodiment, the support base 11 is formed to widen from the front side to the rear side. However, the shape of the support base 11 can be changed to various shapes. For example, the support base 11 can be formed into a triangular prism shape, a quadrangular prism shape, a trapezoidal prism shape, etc. Also, the support base 11 may be formed to widen from the upper end side to the lower end side. Further, the seating area 20 in the support base 11 may be formed not only on a part of the upper surface side of the support base 11 but also over the entire surface. Also, in this embodiment, by forming the bottom surface portion 12 of the support base 11 to be inclined with respect to the horizontal plane, the seating area 20 is configured to incline forward. However, various forms can be adopted as long as the seating area 20 inclines relatively forward with respect to the horizontal plane. For example, the seating area 20 may be formed to incline forward with respect to the support base 11. Also, the degree of forward inclination of the seating area 20 can be appropriately changed according to the body shape of the seated person M, the work content, etc. The degree of forward inclination of the seating area 20 may be adjusted, for example, by a spacer or the like.

[0059] Also, the shape and size of the ear portions 40, 40 can be appropriately changed according to the support base main body 11. Also, the position where the ear portions 40, 40 are formed can be arranged at various positions as long as it is a position where the lower end portion 12 (bottom surface portion 12) of the support base main body 11 is flush on the lower surface side of the support base 11. Also, the number of ear portions 40 provided can be changed according to the size of the support base 11. In such a case, it is desirable to arrange them in pairs on both sides in the left - right direction.

[0060] In this embodiment, the seating surface portion 21 is provided in the seating area 20. However, the seating surface portion 21 may be provided as appropriate, or a configuration without the seating surface portion 21 can also be adopted. When the seating surface portion 21 is provided, the seating surface portion 21 can adopt various forms such as being fixed on the support base 11 or being detachable. Also, the shape and size of the seating surface portion 21 can be changed to various ones. Further, the seating area 20 and the seating surface portion 21 can adopt various forms such as being partitioned by color - coding or changing a part of the material of the support base 11 (for example, a material having elasticity).

[0061] Further, the protruding portions 30 (30A, 30B) are not limited to those having the shape and size of the present embodiment, and those having various shapes and sizes can be adopted. The shape and size of the protruding portion 30 may be formed according to the body shape of the seated person M or the like.

[0062] In the present embodiment, the sub-region 115 in the desk 100 is provided on the right side in the width direction of the main region 111. However, the position where the sub-region 115 is provided can be appropriately changed according to the dominant hand of the operator M or the like. For example, the sub-region 115 may be provided on both sides in the width direction of the main region 111, or on the left side in the width direction.

[0063] In the present embodiment, the surface of the sub-region 115 is formed 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 surface of the sub-region 115 and the surface of the main region 111 are continuous or discontinuous may be appropriately selected according to the purpose of use of the sub-region 115 or the main region 111. Further, the shape and size of the main region 111 can be appropriately changed according to the purpose of use of the desk 100 and the installation location. Further, the degree of bulging and the shape of the arc of the bulging portion 112 on the back side of the main region 111 can be appropriately changed. Further, the degree of bulging and the shape of the arc of the arc portion 113 of the main region 111 can be appropriately changed according to the body shape of the operator M and the degree of forward inclination of the chair 10. Further, the height of the top plate portion 110 in the desk 100 can be appropriately changed according to the chair 10 to be used and the body shape of the operator M or the like.

[0064] In the present embodiment, the footrest 122 is spanned along the width direction between the both side plates 121, 121. However, the footrest 122 may be provided as needed. Further, the shape and size of the footrest 122 can be appropriately changed. Further, not only one footrest 122 but also a plurality of footrests can be provided.

[0065] The above are various modifications of the chair 10 and the desk 100 according to the present invention. It should be easily understood by those skilled in the art that the present invention is not limited to those exemplified in the above-described embodiments and modifications, and that other embodiments can exist within the scope of the teachings and spirit without departing from the scope of the claims.

Industrial Applicability

[0066] The chair of the present invention can be preferably used for office work such as working from home and PC work. Further, the chair of the present invention can also be preferably used for watching TV, reading, etc. Further, the desk of the present invention can be preferably used for office work such as PC work. Further, the desk of the present invention can be preferably used in a pair with the chair of the present invention.

Explanation of Signs

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

Claims

1. A desk that is paired with a chair, a top plate portion and a support leg portion that supports the top plate portion from below, A desk used in combination with a chair, a top plate portion and a support leg portion that supports the top plate portion from below, The chair includes a support base having a bottom surface portion that can be seated on the upper surface side and can be grounded on the lower surface side, The support base has a seating area set on at least a part of the upper surface side, and a protruding portion that protrudes forward from the seating area and is positioned between both legs of the seated person, The seating area may be formed to be inclined forward relative to a horizontal plane, The top plate portion is a main region that extends in a planar shape in the depth direction and the width direction and is formed in an arc shape that bulges from the front side toward the back side in the depth direction; a sub-region protruding toward the front side in the depth direction relative to the main region, The sub-area is provided on at least one of one widthwise side and the other widthwise side of the main area, and is usable by a person sitting on the chair by resting their elbows or arms on it. A desk characterized by:

2. 2. The desk according to claim 1, wherein the surface of the secondary area is formed so as to be continuous with the surface of the primary area.

3. 3. The desk according to claim 1, wherein the main area is formed in an arc shape that bulges out from the front side toward the back side in the depth direction.

4. The support leg portion has a pair of side plates on both sides of the top plate portion in a width direction, A footrest is placed between the two side panels along the width. The desk according to any one of claims 1 to 3, wherein the footrest is disposed on the lower end side of the side panel at the rear side in the depth direction.

5. The support leg portion has a pair of side plates on both sides of the top plate portion in a width direction, A footrest is placed between the two side panels along the width. The footrest is disposed on a lower end side of the side panel at a rear side in a depth direction, The desk according to any one of claims 1 to 4, characterized in that the sub-area and the footrest are configured to simultaneously provide a support point for a seated person who leans forward, thereby enabling a seated person who tends to lean forward to maintain a stable posture.

6. the main region has a rear end surface that protrudes furthest to the rear at a central portion and has an arc-shaped rear bulge portion that approaches the front side on both left and right sides, A desk as described in any one of claims 1 to 5, characterized in that by positioning the rear bulge portion so that it abuts against a wall, a gap is formed between both left and right sides of the rear bulge portion of the main area and the wall.

7. A desk and chair set including a chair and a desk arranged to be paired with the chair, The desk is: a top plate portion and a support leg portion that supports the top plate portion from below, It is used in combination with a chair, a top plate portion and a support leg portion that supports the top plate portion from below, The top plate portion is a main region that extends in a planar shape in the depth direction and the width direction and is formed in an arc shape that bulges from the front side toward the back side in the depth direction; a sub-region protruding toward the front side in the depth direction relative to the main region, The sub-area is provided on at least one of one widthwise side and the other widthwise side of the main area, and is usable by a seated person sitting on the chair by resting their elbows or arms on it, The chair is 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 has a seating area set on at least a part of the upper surface side, and a protruding portion that protrudes forward from the seating area and is positioned between both legs of the seated person, The seating area is formed to be inclined forward relative to the horizontal plane. A desk and chair set featuring:

8. A desk and chair set including a chair and a desk arranged to be paired with the chair, The desk is: a top plate portion and a support leg portion that supports the top plate portion from below, It is used in combination with a chair, a top plate portion and a support leg portion that supports the top plate portion from below, The top plate portion is a main region that extends in a planar shape in the depth direction and the width direction and is formed in an arc shape that bulges from the front side toward the back side in the depth direction; a sub-region protruding toward the front side in the depth direction relative to the main region, The sub-area is provided on at least one of one widthwise side and the other widthwise side of the main area, and is usable by a seated person sitting on the chair by resting their elbows or arms on it, The chair is 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 has a seating area set on at least a part of the upper surface side, and a protruding portion that protrudes forward from the seating area and is positioned between both legs of the seated person, The seating area is formed to be tilted forward with respect to a horizontal plane, The protruding portion is formed to tilt forward along the inclination of the seating area, and to prevent the occupant from crossing their legs when they are seated in the seating area by separating their legs with the protruding portion. A desk and chair set featuring:

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