Functional seat

Abstract

To provide a sitting chair that can stably support a user's waist and back, provide a heating function, and maintain comfort by effectively circulating air through a pattern formed on a cushion, even when the user sits for a long time.SOLUTION: A functional legless chair comprises: a first support unit 10 for supporting a user's waist; a second support unit 30 supporting the user's buttocks and thighs; and a connection support unit 50 connecting the first support unit and the second support unit. The first support unit 10 comprises: a support coupling part surrounding and supporting the user's waist. The second support unit 30 comprises: a depressing support part in shape that is recessed in a shape corresponding to the user's buttocks; lower support parts; and a heating unit for heating a part of the second support unit 30.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a chair, specifically to a functional chair that stably supports a user's correct posture and provides comfort when the user sits down. [Background technology]

[0002] A chair is a piece of furniture designed for a user to sit on. Not only students and office workers, but many people sit on chairs for long periods of time in their daily lives to study or work. When sitting on a chair and continuing to do a certain task, the user's upper body tends to lean forward, and the user's waist or back moves away from the back of the chair. Therefore, even if you sit on a conventional chair designed to correct your posture, your waist and back cannot be supported stably, and sitting for a long period of time can cause problems such as pain in your waist or back or poor posture.

[0003] For this reason, many posture correction chairs have been introduced that provide comfort to the user's lumbar spine and help them maintain good posture while resting or working. However, there are not many chairs that are designed to accommodate the user's forward / backward and side-to-side movements, and especially chairs that are designed to provide continuous and stable support for the lower back even when the upper body is tilted forward while working.

[0004] Conventional types of posture correction chairs can be roughly divided into those that focus on the backrest, those that focus on the seat, and those that combine the two. Among them, a recent trend is the development of many products that focus on the structure of the backrest.

[0005] Korean Patent Publication No. 10-2012-0061581 discloses a legless chair that supports the lumbar spine. A legless chair is generally composed of a seat and a backrest, and refers to a chair without legs that is designed so that the seat can be separated from the floor. However, when a user sits down to work, there is a problem that the user's waist and back cannot be stably supported due to the inclination of the upper body.

[0006] Korean Patent No. 10-1598473 discloses a chair that uses the principle of leverage to naturally support the user's waist and back as the user leans forward. Although it has an excellent function of stably supporting the waist and back, it is difficult to smoothly release heat and circulate air when seated for a long time. In addition, it does not have a heating function for use in winter, and the cushion pad attached to the chair is difficult to remove.

[0007] On the other hand, the part of the seat that comes into contact with the user's buttocks is curved, so when the user sits down, the seat may tilt left and right and sway.

[0008] In addition, the upper part of the chair (backrest) that supports the lower back and back is not divided into multiple parts, and the lower part (seat) that supports the buttocks is also not divided into multiple parts. In this case, there is a problem that the body pressure applied to the chair when the user sits down cannot be distributed.

[0009] Furthermore, angled ribs are disclosed to reinforce the strength of the part connecting the waist and buttocks. However, the angled ribs have a problem of shrinkage occurring when the chair is injection molded. Summary of the Invention [Problem to be solved by the invention]

[0010] The present disclosure aims to solve the problem of enabling a user to maintain comfort through smooth heat release and air circulation when seated for a long period of time.

[0011] The problem to be solved by the present disclosure is to provide a heating function.

[0012] The present disclosure aims to solve the problem of preventing the seat surface from swaying from side to side when a user is seated.

[0013] The present disclosure aims to solve the problem of improving the distribution of body pressure applied to a chair when a user is seated.

[0014] The present disclosure aims to solve the problem of making it easy to attach and detach the cushion and pad.

[0015] The present disclosure aims to solve the problem of improving the phenomenon of mold shrinkage during injection molding. [Means for solving the problem]

[0016] In order to solve the above-mentioned problems, the present invention provides a functional chair including a first support part that supports at least a part of the user's waist when the user is seated; a second support part that is located in front of and below the first support part when the user is seated, and supports at least a part of the user's left and right buttocks and thighs; and a connecting support part that connects the first support part and the second support part; the first support part is connected to the connecting support part and supports the user's waist in a wrapping manner; and a plurality of upper support parts extending upward from the support connecting part, and the second support part includes a recessed support part that is recessed in a shape corresponding to the user's left and right buttocks; and a plurality of lower support parts formed by extending forward from the recessed support part.

[0017] In addition, the first support part is inclined toward the front as it rises upward from the support connecting part, and the second support part is inclined toward the front as it moves forward from the recessed support part, and the connecting support part connects the first support part and the second support part in the form of a curved surface protruding backward, so that when a user is seated, the first support part and the second support part can rotate in the same direction.

[0018] The multiple upper support parts include a first upper support part extending upward from the support connecting part and supporting the lumbar vertebrae of the user; and a second upper support part and a third upper support part extending upward from the support connecting part and located on both sides of the first upper support part; the first support part further includes a first opening located between the first upper support part and the second upper support part and separating the first upper support part and the second upper support part; and a second incision located between the first upper support part and the third upper support part and separating the first upper support part and the third upper support part.

[0019] The plurality of lower support parts include a first lower support part and a second lower support part extending forward from the recessed support part, the second support part being located between the first lower support part and the second lower support part, and further including a forward cutout portion separating the first lower support part and the second lower support part.

[0020] Meanwhile, the second support part includes a fastening hole part formed through the recessed support part; and a protruding detachable part that is detachably connected to the fastening hole part; and the protruding detachable part protrudes from the rear surface of the second support part when connected to the fastening hole part.

[0021] The fastening hole portion includes a first fastening hole located between a center of the second support portion along a width direction of the second support portion and one side of the second support portion, and a second fastening hole located between a center of the second support portion along a width direction of the second support portion and the other side of the second support portion, and the protruding detachable portion includes a first protruding bridge detachably coupled to the first fastening hole, and a second protruding bridge detachably coupled to the second fastening hole, and the first protruding bridge and the second protruding bridge may protrude from a rear surface of the second support portion when coupled to the first fastening hole and the second fastening hole, respectively.

[0022] Meanwhile, the functional chair further includes a hip center hole formed through the recessed support part; a heating part for heating at least a part of the second support part; and a cable for supplying power to the heating part;

[0023] The cable is passed through the hip center hole from the rear surface of the second support to the front surface of the second support and is electrically connected to the heating unit.

[0024] That is, the recessed support part includes a protruding recess formed by a portion of the region between the hip center hole and the connecting support part of the recessed support part being raised upward in a direction from the hip center hole to the connecting support part, and the cable is inserted through a space formed below the protruding recess and is electrically connected to the heating part.

[0025] On one hand, the connecting and supporting part is formed by penetrating the connecting and supporting part, and includes a first curved surface hole and a second curved surface hole arranged side by side in the left-right direction of the connecting and supporting part; a central rib part located between the first curved surface hole and the second curved surface hole; a first rib part located between one side surface and the first curved surface hole on the outer surface of the connecting and supporting part, connecting the first supporting part and the second supporting part; and a second rib part located between the other side surface and the second curved surface hole on the outer surface of the connecting and supporting part, connecting the first supporting part and the second supporting part. At least a part of the first rib part is provided in a wavy shape in the direction from the first curved surface hole toward one side surface, and at least a part of the second rib part is provided in a wavy shape in the direction from the second curved surface hole toward the other side surface.

[0026] On one hand, the functional seat includes an upper cushion part detachably coupled to the first supporting part; and a lower cushion part detachably coupled to the second supporting part.

[0027] The upper cushion part includes a first cushion detachably coupled to the first upper supporting part; a second cushion detachably coupled to the second upper supporting part; and a third cushion detachably coupled to the third upper supporting part. The lower cushion part includes a first pad detachably coupled to a position contacting one of the user's left and right buttocks; and a second pad detachably coupled to a position contacting the other of the user's left and right buttocks.

[0028] the first upper support part, the second upper support part, and the third upper support part each include a first through hole, a second through hole, and a third through hole formed therethrough, the second support part includes a first coupling hole and a second coupling hole formed therethrough, the first cushion includes a first cushion hook provided at a position opposite to the first through hole, the second cushion includes a second cushion hook provided at a position opposite to the second through hole, the third cushion includes a third cushion hook provided at a position opposite to the third through hole, the first pad includes a first pad hook provided at a position opposite to the first coupling hole, and the second pad includes a second pad hook provided at a position opposite to the second coupling hole, and the first cushion hook, second cushion hook, third cushion hook, first pad hook, and second pad hook can be hook-coupled by being inserted into the first through hole, the second through hole, the third through hole, the first coupling hole, and the second coupling hole, respectively.

[0029] The upper cushion part has a surface that comes into contact with the user's waist that is partially recessed in the shape of a groove, and includes an upper cushion vent that forms a path for air movement, and the lower cushion part has a surface that comes into contact with the user's left and right buttocks that is partially recessed in the shape of a groove, and includes a lower cushion vent that forms a path for air movement.

[0030] The first cushion, the second cushion, and the third cushion each have a portion of their surface that comes into contact with the user's waist that is recessed in the shape of a groove, and each include a first upper channel, a second upper channel, and a third upper channel that form a path for air to circulate toward the top.

[0031] The second support portion includes a first hip hole, one side of both sides of the second support portion being closer than the other side, and formed by penetrating the second support portion; and a second hip hole, the other side of both sides of the second support portion being closer than the one side, and formed by penetrating the second support portion; the first pad includes a first pad through hole, which is provided facing the first hip hole, and formed by penetrating the first pad; the second pad includes a second pad through hole, which is provided facing the second hip hole, and formed by penetrating the second pad; the first pad includes a first communication channel, which is connected to the first pad through hole and the first hip hole, and a part of a surface that comes into contact with either one of the buttocks is recessed in the shape of a groove to form a path for air to circulate forward, and the second pad includes a second communication channel, which is connected to the second pad through hole and the second hip hole, and a part of a surface that comes into contact with the other buttocks is recessed in the shape of a groove to form a path for air to circulate forward.

[0032] The support further includes a hip center hole formed through the recessed support part, and a portion of the air entering through the hip center hole can pass between the first pad and the second pad and move toward the front incision.

[0033] The first pad is positioned to be spaced apart on at least one of both sides of the first communication channel and includes (at least) a first front channel formed by being recessed in the shape of a groove, and the second pad is positioned to be spaced apart on at least one of both sides of the second communication channel and includes (at least) a second front channel formed by being recessed in the shape of a groove.

[0034] Additionally, the first and second forward channels are each provided with a curvilinear configuration.

[0035] Meanwhile, the connecting support part includes a first curved hole and a second curved hole which are formed penetrating the connecting support part and arranged side by side in the left-right direction of the connecting support part, and the second support part includes a hip center hole formed penetrating the recessed support part; a first hip hole formed penetrating the second support part, with one side of both sides of the second support part positioned closer than the other side in front of the hip center hole; and a second hip hole formed penetrating the second support part, with the other side of both sides of the second support part positioned closer than the one side in front of the hip center hole.

[0036] The first support portion, the second support portion and the connecting support portion are made of an elastic material and can be injection molded as a single unit. Effect of the Invention

[0037] The present disclosure allows users to remain comfortable even when seated for long periods of time through smooth heat dissipation and air circulation.

[0038] The present disclosure is provided with a heating function.

[0039] The present disclosure can prevent the seat from swaying from side to side when the user is seated.

[0040] The present disclosure can improve the distribution of body pressure applied to a chair when a user is seated.

[0041] The present disclosure allows the cushion and pad to be easily removed and attached.

[0042] The present disclosure can improve the shrinkage phenomenon during injection molding. [Brief description of the drawings]

[0043] [Figure 1] Figure 1 shows an example of a conventional functional chair. [Diagram 2] 2(a) to 2(c) are diagrams of an embodiment of a functional seat described in this disclosure. [Diagram 3]Figure 3 shows the principle of leverage in a functional zaisu chair. [Figure 4] Figures 4(a) and 4(b) show how the functional chair distributes the user's body pressure when the user is seated. [Diagram 5] 5(a) and 5(b) are partial cross-sectional views of a functional chair. [Figure 6] 6(a) and 6(b) are diagrams showing the hook connection of the cushion part. [Figure 7] 7(a) and 7(b) are diagrams showing a method for attaching and detaching the cushion part. [Figure 8] 8(a) and 8(b) are diagrams showing air movement paths formed in a functional chair. [Figure 9] 9(a) and 9(b) are diagrams showing protrusions formed on the floor surface of a functional chair. [Figure 10] FIG. 10(a) or FIG. 10(d) illustrates a protruding detachable portion that is provided so as to be detachable from the floor surface of the functional chair. [Figure 11] 11(a) and 11(b) show a separation space provided between the floor and the second support part to protect the cables passing under the second support part. [Figure 12] FIG. 12(a) or FIG. 12(c) illustrates another embodiment of the functional seat described in the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0044] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. The configurations and control methods of the devices described below are for explaining the embodiments of the present disclosure, and are not intended to limit the scope of the disclosure. The same reference numerals are used throughout the specification to indicate the same components.

[0045] The specific terminology used herein is for ease of description only and is not intended to limit the scope of the illustrative embodiments.

[0046] For example, expressions such as "same" and "same as" not only indicate a strictly identical state, but also include a state in which there is a tolerance (allowable error) or a difference to the extent that the same function is obtained.

[0047] For example, expressions indicating relative or absolute configuration such as "in the direction of XX", "along the direction of XX", "as well as", "vertically", "at the center", "concentric" or "coaxial" not only indicate such a configuration strictly, but also include a state of relative displacement with a tolerance or an angle or distance to the extent that the same function is obtained.

[0048] The use of terms such as "first, second, third" before components described below is intended to avoid confusion of the components, and does not represent the order, importance, or hierarchical relationship of the components. For example, an invention including only the second component without the first component can be realized.

[0049] As used herein, the singular expression includes the plural expression unless the context clearly indicates otherwise.

[0050] In this specification, the terms hips and buttocks are medical terms that refer to the upper part of the hip region that is connected to the gluteus medius or pelvis, and the lower part of the buttocks, which is the part with many muscles that touch the ground when sitting. In other words, it refers to the lower part of the buttocks that comes into contact when wearing pants.

[0051] The buttocks are the fleshy areas on either side of the back below the waist and above the thighs. Thus, the upper part of the buttocks is the hips and the lower part is the buttocks.

[0052] Although the meaning may differ in Europe and the US, in this specification, hips is the part of the body that corresponds to the gluteus medius muscle, and buttocks is the part of the body that corresponds to the gluteus maximus muscle. Also, since there are two buttocks on the human body, left and right, they must be used in the plural, but in this specification, both buttocks are meant unless it is clear that only one buttock is being expressed, such as one buttock or the other buttock.

[0053] Fig. 1 shows an example of a conventional functional chair 1. Referring to Fig. 1, the functional chair 1 includes a hip support part 30 into which the thighs and buttocks of a user sit when seated, a lumbar support part 10 into which the back of the user sits when seated, and a connecting support part 50 that connects the hip support part 30 and the lumbar support part 10 with a curved surface and into which the user's hips and part of the lumbar region sit.

[0054] The lumbar support portion (10) includes lumbar support air holes (71) formed through the lumbar support portion (10) for air circulation when a user is seated.

[0055] The connecting support part (50) also includes connecting support part air holes (73a, 73b) formed through the connecting support part (50) for air circulation when a user is seated. The connecting support part first air hole (73a) and the connecting support part second air hole (73b) are provided symmetrically in the height direction of the functional seat (1) and can be located below the waist support part air hole (71).

[0056] The hip support 30 also includes a plurality of hip support air holes 75a, 75b, 75c formed through the hip support 30 for air circulation when a user is seated.

[0057] The waist support portion (10) and the hip support portion (30) are portions that the user's waist and buttocks can directly contact, and the functional chair (1) can further include cushion portions (91, 92) for the user to sit comfortably and be supported.

[0058] The cushion portions (91, 92) may include a lumbar cushion (91) separated along the outer shape of the lumbar support portion (10) and a hip cushion (92) separated along the outer shape of the hip support portion (30).

[0059] For smooth air circulation, it is also conceivable that a part of the lumbar cushion (91) is separated so that the lumbar cushion (91) and the lumbar support air hole (71) do not overlap each other.

[0060] The hip cushion (92) corresponds to the air holes (75a, 75b, 75c) of the hip support parts, respectively, and a part of the hip cushion (92) may be separated so that the air channels (65a, 65b, 65c) of the hip support parts and the hip cushion (92) do not overlap each other.

[0061] The lumbar cushion (91) includes a lumbar support central channel portion (61a) provided in the shape of a groove between the air holes (73a, 73b) of the connecting support portion and the air holes (71) of the lumbar support portion in a direction from the air holes (73a, 73b) of the connecting support portion to the air holes (71) of the lumbar support portion to form a passage through which air passes. Also, the lumbar cushion (91) includes lumbar support peripheral channel portions (61b) provided in the shape of a groove in a direction from the air holes (73a, 73b) of the connecting support portion toward both sides of the lumbar support portion (10).

[0062] In addition, the hip cushion (92) may include a hip support portion, a hip support portion first air channel (65a) for allowing air to flow forward from the hip support portion first air hole (75a), a hip support portion second air channel (65b) and a hip support portion third air channel (65c) for allowing air to flow forward from the hip support portion first air hole (75a), the hip support portion second air hole (75b) and the hip support portion third air hole (75c), respectively.

[0063] The central channel portion (61a) of the lumbar support portion and the peripheral channel portion (61b) of the lumbar support portion are not formed of a separate material, but may be formed by recessing a part of the lumbar cushion (91). That is, the lumbar cushion (91) may have a recessed pattern.

[0064] Similarly, the hip support air channels (65a, 65b, 65c) may not be formed of a separate material, but may be formed by depressing a portion of the hip cushion (92), i.e., the hip cushion (92) may have a recessed pattern.

[0065] However, the lumbar support part (10) does not include any separate portion through which air can move, except for the lumbar support part air hole (71) located along the lumbar support part (10) toward the upper part of the functional chair (1). In addition, the lumbar cushion (91) attached to the lumbar support part (10) is also formed as a single unit and attached to the lumbar support part (10), so that it does not have any structure for discharging or inflowing air, except for the lumbar support part central channel part (61a) and the lumbar support part peripheral channel part (61b).

[0066] Similarly, the hip support part (30) is separate and does not include any part through which air can move, except for the air holes (75a, 75b, 75c) of the hip support part along the hip support part (30) toward the front of the functional seat (1). Furthermore, the hip cushion (92) attached to the hip support part (30) is also formed as a single unit and attached to the hip support part (30), so there is no structure for letting air in or out, except for the air channels (65a, 65b, 65c) of the hip support part.

[0067] Therefore, although the conventional functional chair (1) described above can stably support the user's waist and back, there is a limit to its air circulation structure for discharging heat generated by the user's body heat when used for long periods of time, since the lumbar cushion (91), hip cushion (92), waist support part (10) and hip support part (30) do not have sufficient passages for air circulation.

[0068] Furthermore, since there is no separate incision in the hip support portion (30) or the lumbar support portion (10), there may be a problem that the pressure exerted by the user on the lumbar support portion (10) or the hip support portion (30) when the user sits down cannot be dispersed.

[0069] Meanwhile, the connecting support part (50) may include a plurality of curved ribs (55) for reinforcing the strength of the connecting support part (50). The curved ribs (55) may be formed by folding a part of the connecting support part (50) into a sharp wrinkle shape, without using a separate material. However, the cross section of the curved rib (55) located on the connecting support part (50) cut in the width direction of the functional seat (1) may be a V-shaped angled rib. The curved ribs (55) may be formed by extending long from the hip support part (30) toward the lumbar support part (10).

[0070] However, the sharp-cut curved rib (55) does not take into consideration the manufacturing method of the functional seat (1) which is formed as a single unit excluding the cushion. Generally, conventional functional seat (1) is made of polymer material, and injection molding is mainly used for this purpose. In this case, the cohesive force is concentrated on the sharp-cut curved rib, which is prone to shrinkage deformation, so there is a possibility that the product will not be made according to the planned design.

[0071] In addition, the lumbar cushion 91 and the hip cushion 92 can be fixedly connected to the lumbar support part 10 and the hip support part 30, respectively, using a connecting material. Therefore, once the lumbar cushion 91 and the hip cushion 92 are attached, they are difficult to separate, which may cause inconvenience to a user who wants to wash the cushions 91, 92.

[0072] Furthermore, the conventional functional chair (1) does not provide a heating function for cold environments.

[0073] In addition, the hip support portion 30 is not flat when viewed from the width direction of the functional chair 1, but is gently curved downward and recessed. Therefore, depending on the material of the floor on which the functional chair 1 is used, the functional chair 1 may not be able to be fixed to the left and right and may sway.

[0074] Referring to FIG. 2(a), the functional chair (100) described in the present disclosure includes a first support part (110) that supports at least a portion of the user's waist when the user is seated, a second support part (130) that is located in front of and below the first support part (110) when the user is seated and supports at least a portion of the user's left and right buttocks and thighs, and a connecting support part (150) that connects the first support part (110) and the second support part (130).

[0075] In this specification, the direction in which a user sits on the functional chair (100) is the front, the direction behind the second support part (130) is the rear, and both sides or left and right directions indicate the width direction of the functional chair (100).

[0076] The first support part (110), the second support part (130) and the connecting support part (150) are made of an elastic material having flexibility to support the waist and buttocks. In addition, the first support part (110), the second support part (130) and the connecting support part (150) are not separate parts connected together, but can be formed as an integrated part during manufacturing.

[0077] That is, the material of the functional seat 100 may be a polymer material, and the functional seat 100 may be manufactured by injection molding.

[0078] Referring to Figures 2(b) and 2(c), the first support part (110) is connected to the connecting support part (150) and includes a support connecting part (115) that supports the user by wrapping around the waist, and a plurality of upper support parts (111, 112, 113) extending upward from the support connecting part (115).

[0079] The support and connection part (115) is a curved material and can be divided into a plurality of upper support parts (111, 112, 113) separated from the connecting support part (150) by a plurality of cutouts. When a user sits down, the support and connection part (115) faces the user's hips, lower back, or lower back. The support and connection part (115) can also partially contact the lower part of the upper cushion part (310) described later.

[0080] The upper corners of the upper support parts (111, 112, 113) are curved for the safety of the user.

[0081] The second support portion (130) may include a recessed support part (135) having a recessed shape corresponding to the left and right buttocks of the user and a plurality of lower support parts (131, 132) extending forward from the recessed support part (135).

[0082] The recessed support parts 135 are curved to contact the left and right buttocks of the user. That is, the recessed support parts 135 are recessed to fit the curves of the left and right buttocks. This is in consideration of the shape of the user's body parts.

[0083] The recessed support part (135) is connected to the connecting support part (150) and is provided in the form of a curved surface, similar to the support coupling part (115). The recessed support part (135) is the part that comes into contact with the floor and is supported when the functional chair (100) is placed on the floor.

[0084] The first support part (110) may be inclined forward as it rises upward from the support coupling part (115). And, the connecting support part (150) is connected to a curved surface protruding backward from the first support part (110) and the second support part (130).

[0085] That is, when the first support part (110) and the second support part (130) are considered as a plane and the functional chair (100) is viewed from one side, an acute angle can be formed between the first support part (110) and the second support part (130). As a result, when a user sits down, if the front part of the second support part (130) moves down due to the user's weight, the first support part (110) rotates toward the user to support the user's waist. Therefore, when the user sits down, the first support part (110) and the second support part (130) will rotate in the same manner, either clockwise or counterclockwise.

[0086] The plurality of upper support parts (111, 112, 113) include a first upper support part (111) extending upward from the support connecting part (115) and supporting the lumbar region of the user, and a second upper support part (112) and a third upper support part (113) extending upward from the support connecting part (115) and located respectively on both sides of the first upper support part (111).

[0087] The first upper support part (111), the second upper support part (112) and the third upper support part (113) may each be extended upwardly in a separated form from the support connecting part (115).

[0088] Therefore, the first support portion (110) may further include a first opening (117) located between the first upper support part (111) and the second upper support part (112) and separating the first upper support part (111) and the second upper support part (112), and a second cutout (119) located between the first upper support part (111) and the third upper support part (113) and separating the first upper support part (111) and the third upper support part (113).

[0089] Similarly, the plurality of lower support parts (131, 132) include a first lower support part (131) and a second lower support part (132) extending forward from the recessed support part (135), and the second support part (130) is disposed between the first lower support part (131) and the second lower support part (132), and may further include a forward cutout portion (137) separating the first lower support part (131) and the second lower support part (132).

[0090] Also, the lower support parts (131, 132) are provided with curved shear angles for the safety of users.

[0091] 4(a) and 4(b), this is to effectively distribute the weight of the user through the functional chair 100. When the user sits down, the load of the user per unit area of ​​the functional chair 100 can be called body pressure.

[0092] If the first support part (110) is formed of a single member, when a user leans his / her waist against the first support part (110), the user's waist will not come into contact with all surfaces of the first support part (110). Accordingly, the force acting on the first support part (110) by the user's waist is concentrated only on a part of the first support part (110), which may cause deformation and damage to the first support part (110) and the connecting support part (150).

[0093] Therefore, it would be more advantageous for dispersing the user's body pressure to support the user's lower back with multiple members arranged in the left and right direction, rather than supporting the user's lower back with a single member. Multiple members will better encase the user's lower back than a single member, and the surface area that comes into contact with the user's lower back will be larger.

[0094] Similarly, the second support part can support the left and right buttocks and parts of the left and right thighs of the user. Therefore, unlike the multiple upper support parts (111, 112, 113) which are divided into three, it is considered more effective to divide the multiple lower support parts (131, 132) into two and support one of the user's buttocks and a part of one of the thighs in the same direction.

[0095] This allows the user's body pressure applied by the left and right buttocks and thighs to be effectively distributed.

[0096] 2(b) and 2(c), the functional chair (100) includes an air hole part (200) including at least one through hole formed through the first support part (110), the second support part (130), or the connecting support part (150). This is to prevent the user from getting stuffy because the user's body heat cannot escape due to close contact between the user and the functional chair (100) when the user sits for a long time. For this reason, the functional chair (100) allows the user's waist and buttocks (hips, buttocks) to come into contact with the outside air.

[0097] Specifically, the connecting support part (150) includes a first curved hole (251) and a second curved hole (252) that are formed penetrating the connecting support part (150) and arranged side by side in the left-right direction of the connecting support part (150).

[0098] In addition, the second support part (130) includes a hip center hole (233) formed by penetrating the recessed support part (135), a first hip hole (231) formed by penetrating the second support part (130) with one side of the second support part (130) positioned closer than the other side in front of the hip center hole (233), and a second hip hole (232) formed by penetrating the second support part (130) with the other side of the second support part (130) positioned closer than the one side in front of the hip center hole (233).

[0099] However, this is only one example. As long as air can pass through, the number, position, and size of the air holes may be changed.

[0100] Meanwhile, the first support part (110) and the second support part (130) may further include detachable cushions or pads in the upper support parts (111, 112, 113) and the lower support parts (131, 132). In Fig. 2(b) and Fig. 2(c), the approximate positions of the upper cushion part (310) located on the first support part (110) and the lower cushion part (320) located on the second support part (130) are illustrated by dotted lines. This will be described later.

[0101] 3, the first support part 110 may be inclined forward as it rises upward from the support coupling part 115. The connecting support part 150 connects the first support part 110 and the second support part 130 as a curved surface protruding backward.

[0102] The recessed support part (135) contacts the floor surface (G) to support the functional seat (100). The floor surface may be a soft surface such as a chair or sofa with a cushion, or a hard floor surface.

[0103] When the user sits down, the front part (RF) of the second support part (130) moves from T to T', and the connecting support part (150) also moves from A to A'. Eventually, the upper part of the first support part (110) will also move from W to W' through the connecting support part (150).

[0104] This movement is achieved by a rotational movement about a part of the recessed support part (135) and the connecting support part (150) as a reference point.

[0105] That is, when the first support part (110) and the second support part (130) are considered as a plane and the functional chair (100) is viewed from one side, an acute angle can be formed between the first support part (110) and the second support part (130). As a result, when a user sits down, the front part of the second support part (130) moves down due to the user's weight, and the first support part (110) tilts toward the user to support the user's waist. Therefore, when viewed from the side as in Figure 3, when the user sits down, the first support part (110) and the second support part (130) rotate in the same manner, either clockwise or counterclockwise.

[0106] The functional seat (100) may further include a through hole formed through the functional seat (100) in addition to the air hole portion (200).

[0107] 4(b), this is for coupling with the cushion part (300) provided in the functional seat chair (100). That is, the first upper support part (111), the second upper support part (112) and the third upper support part (113) include a first through hole (191), a second through hole (192) and a third through hole (193) formed therethrough, respectively. And, the second support part (130) includes a first coupling hole (195) and a second coupling hole (196) formed therethrough.

[0108] The number of each of the first through hole (191), the second through hole (192), the third through hole (193), the first connecting hole (195) and the second connecting hole (196) may be at least one.

[0109] As an example, Fig. 4(b) illustrates two upper first through holes (1911a, 1911b) formed through the first upper support part (111). Also, in the portion of the support coupling part (115) located below the first upper support part (111), two lower first through holes (1912a, 1912b) for coupling a first cushion (311, see Fig. 7) are illustrated together with the two upper first through holes (1911a, 1911b).

[0110] Also, Fig. 4(b) illustrates an upper second through hole (1921) formed through the second upper support part (112) and a lower second through hole (1922) in the supporting and connecting part (115) located below the second upper support part (112), for connecting a second cushion (312, see Fig. 7) to the second upper support part (112). Fig. 4(b) illustrates an upper third through hole (1931) formed through the third upper support part (113) and a lower third through hole (1932) in the supporting and connecting part (115) located below the third upper support part (113), for connecting a third cushion (313, see Fig. 7) to the second upper support part (112).

[0111] This is just an example, and the positions, number, and size of the through holes may be changed as desired. That is, the lower first through holes (1912a, 1912b), the lower second through hole (1922), and the lower third through hole (1932) may also be located in the upper support parts (111, 112, 112) instead of the support connecting part (115).

[0112] 4(a), the second support portion (130) includes a first coupling hole (195) and a second coupling hole (196) formed through the second support portion (130). The first coupling hole (195) is for coupling a first pad (321, see FIG. 7) to the first lower support part and a part of the recessed support part (135), and the second coupling hole (196) is for coupling a second pad (322, see FIG. 7) to the second lower support part and another part of the recessed part (135).

[0113] As an example of the first connecting holes (195), Fig. 4(a) illustrates three first connecting holes (1951, 1952, 1953) located on the left side of the recessed support part (135) or on the first lower support part (131). As an example of the second connecting holes (196), Fig. 4(a) illustrates three second connecting holes (1961, 1962, 1963) located on the right side of the recessed support part (135) or on the second lower support part (132).

[0114] 5(a) illustrates a cross section of the central rib portion (155) located on the connecting support portion (150), and FIG. 5(b) illustrates a cross section of the second rib portion (152) located on the connecting support portion (150).

[0115] 2(b), the connecting support part (150) includes a first curved hole (251) and a second curved hole (252) that are formed penetrating the connecting support part (150) and are arranged side by side in the left-right direction of the connecting support part (150). The connecting support part (150) includes a central rib part (155) located between the first curved hole (251) and the second curved hole (252), a first rib part (151) located between one side of the outer surface of the connecting support part (150) and the first curved hole (251) to connect the first support part (110) and the second support part (130), and a second rib part (152) located between the other side of the outer surface of the connecting support part (150) and the second curved hole (252) to connect the first support part (110) and the second support part (130). The first rib portion (151) and the second rib portion (152) may be symmetrical in shape.

[0116] FIG. 2(a) shows the positions of line CC' for showing the cross section of the central rib portion (155) in FIG. 5(a) and line D-D' for showing the cross section of the second rib portion (152) in FIG. 5(b).

[0117] 5(a) shows a cross section of the central rib portion 155. Referring to FIG. 5(a), the central rib portion 155 is recessed backward between the first curved hole 251 and the second curved hole 252, and the recessed portion has a curved surface with a very large radius of curvature.

[0118] Referring to FIG. 5(b), the first rib portion (151) and the second rib portion (152) are provided in the form of a fold having a valley extending in a direction from the second upper support part (112) toward the recessed support part (135) to reinforce the rigidity of the connecting support part.

[0119] In the conventional functional seat (1), the first rib portion (151) and the second rib portion (152) are provided with angled folds. However, when the functional seat (100) is manufactured by injection molding, the cohesive force is concentrated at the sharp folds, which may cause the product to shrink more than expected. To compensate for this, the functional seat (100) described in this disclosure is provided with wavy folds instead of sharp folds.

[0120] This can be a repeating sinusoidal wave or corrugated, as long as it is pleated and has smooth curves without any sharp bends.

[0121] That is, at least a portion of the first rib portion (151) is formed in a wavy shape in a direction from the first curved hole (251) toward the one side surface, and at least a portion of the second rib portion (152) is formed in a wavy shape in a direction from the second curved hole (252) toward the other side surface.

[0122] Fig. 6 illustrates the hook connections (or snap-fit ​​connections) that connect to the first through hole (191), the second through hole (192), the third through hole (193), the first connection hole (195), and the second connection hole (196). Fig. 6(a) shows the front surface (112a) of the second upper support part as viewed from the front, and Fig. 6(b) shows the rear surface of the second upper support part as viewed from the rear.

[0123] The cushion part (300) can be detachably attached to the functional seat (100). For this purpose, the cushion part (300), the first support part (110) and the second support part (130) are attached to each other using a hook-and-loop fastener (Velcro (registered trademark)). However, considering the size of the cushion part (300) and the body pressure of the user that is applied for a long time, it is preferable to use a snap-fit ​​connection or a hook connection.

[0124] For this purpose, the cushion part (300) also includes hooks that can be connected to the first through hole (191), the second through hole (192), the third through hole (193), the first connecting hole (195) and the second connecting hole (196) at their respective positions.

[0125] As an example, Figures 6(a) and 6(b) illustrate an upper first hook (3411) inserted into the second through hole (192) of the second upper support part (112).

[0126] Referring to Fig. 7(a), there is shown a cushion part (300) that can be detached from the functional seat (100). The cushion part (300) can include an upper cushion part (310) that can be detached from the first support part (110) and a lower cushion part (320) that can be detached from the second support part (130).

[0127] That is, the functional chair (100) may further include an upper cushion part (310) that is detachably connected to the first support part (110) and a lower cushion part (320) that is detachably connected to the second support part (130).

[0128] The cushion part (300) is provided with elasticity by putting cotton or sponge inside the cushion part (300) to provide comfort when a user sits down.

[0129] The upper cushion part (310) may include a first cushion (311) that is detachably connected to the first upper support part (111), a second cushion (312) that is detachably connected to the second upper support part (112), and a third cushion (313) that is detachably connected to the third upper support part (113).

[0130] That is, the number of the upper cushion parts (310) is the same as the number of the upper support parts (111, 112, 113). Therefore, the first cutout part (117) is located between the first cushion (311) and the second cushion (312), and the second cutout part (119) can be located between the first cushion (311) and the third cushion (313).

[0131] The lower cushion portion (320) includes a first pad (321) that is detachably attached to a position that contacts either the left or right buttock of the user, and a second pad (322) that is detachably attached to a position that contacts the other buttock of the user.

[0132] That is, the number of the lower cushion parts (320) is the same as the number of the lower support parts (131, 132).

[0133] Referring to FIG. 8(b), the first pad (321) is disposed to face the first hip hole (231) and includes a first pad through-hole (3211) formed through the first pad (321), and the second pad (322) is disposed to face the second hip hole (232) and includes a second pad through-hole (3221) formed through the first pad (321).

[0134] Therefore, the first hip hole (231) and the first pad through hole (3211) are in communication with each other, providing a passage for air to flow. Similarly, the first hip hole (231) and the second pad through hole (3221) are in communication with each other, providing a passage for air to flow.

[0135] The first pad (321) and the second pad (322) may be round in shape according to the shape of the second support.

[0136] 7(a), the first cushion (311) includes a first cushion hook (341) aligned to face the first through hole (191). The second cushion (312) includes a second cushion hook (342) aligned to face the second through hole (192). Also, the third cushion (313) includes a third cushion hook (343) aligned to face the third through hole (193).

[0137] The first cushion hook (341), the second cushion hook (342) and the third cushion hook (343) may be positioned inside the first cushion (311), inside the second cushion (312) and inside the third cushion (313), respectively.

[0138] Alternatively, the first cushion hook (341) may be provided in such a manner that a head (upper portion) of the first cushion hook (341) is exposed on a surface of the first cushion (311) that contacts the user, and a hook portion of the first cushion hook (341) penetrates the first cushion (311) to face the first through hole (191). The hook portion of the first cushion hook (341) is coupled to the first through hole.

[0139] This is to form a recess on the surface of the first cushion (311) that comes into contact with the user, forming part of a passage for circulating air, and to prevent the sponge or cotton that may be located inside the first cushion from moving on its own and flowing to one side.

[0140] The second cushion hook (342) and the third cushion hook (343) are also provided on the second cushion (312) and the third cushion (313), respectively, in the same shape as the first cushion hook (341), and will be connected to the second through hole (192) and the third through hole (193), respectively.

[0141] As an example, referring to Fig. 7(a), two first cushion hooks (341) are provided on each of the upper and lower parts of the first cushion (311). The head (upper part) of the hook located on the upper part of the first cushion (311) is located inside the first cushion and is not exposed when viewed from the front. Therefore, this is shown roughly with dotted lines. However, the head of the hook located on the lower part of the first cushion (311) may be visible from the outside.

[0142] The above hook positions, hook sizes, and number of hooks are merely examples, and the hook positions, sizes, and number may vary.

[0143] 7(a) shows an example in which the second cushion (312) includes the second cushion hooks (3421, 3422) at the top and bottom, respectively. The third cushion (313) is similar.

[0144] That is, the first cushion hook (341), the second cushion hook (342), and the third cushion hook (343) can be inserted into the first through hole (191), the second through hole (192), and the third through hole (193), respectively, to form a hook connection.

[0145] Fig. 7(b) shows an example of separating the lower second through hole (1922) and the lower second hook (3422). A user can simply remove the upper cushion part (310) by separating the hooks provided on each cushion, and then reconnect them for use. Therefore, for example, an old cushion can be replaced with a new cushion.

[0146] When joining the cushions together, they can be rejoined by inserting the hooks attached to each cushion into the through holes that face each hook.

[0147] The same is true for the lower cushion part (320). Referring to Fig. 8(b), the first pad (321) includes a first pad hook (351) provided at a position facing the first coupling hole (195), and the second pad (322) includes a second pad hook (352) provided at a position facing the second coupling hole (196).

[0148] That is, the first pad hook (351) and the second pad hook (352) can be inserted into the first fastening hole (195) and the second fastening hole (196) respectively to be hook-fastened.

[0149] FIG. 8(b) illustrates an example in which the first pad hook (351) is provided as three hooks (1951, 1952, 1953) and the second pad hook (352) is also provided as three hooks (1961, 1962, 1963).

[0150] On the other hand, by using a different hook or utilizing the hooks attached to the cushion part, it is possible to attach other objects to the through holes (191, 192, 193) or the connecting holes (195, 196).

[0151] 8(a) and 8(b) show ventilation holes provided in the functional seat (100) to maintain a comfortable sitting experience even when the user sits on the seat for a long period of time.

[0152] When a user sits down, air can flow in and out through the air hole part (200), and the cushion part (300) has a pattern on the surface that comes into contact with the user to form something like an air passage.

[0153] The upper cushion part (310) includes an upper cushion vent (360) having a groove-shaped recess on a surface that comes into contact with the user's waist, and the lower cushion part (320) includes a lower cushion vent (380) having a groove-shaped recess on a surface that comes into contact with the user's left and right buttocks, and the lower cushion part (320) includes a lower cushion vent (380) having a groove-shaped recess on a surface that comes into contact with the user's left and right buttocks, and the lower cushion vent (360) forming a path for air movement.

[0154] That is, the upper cushion vent 360 and the lower cushion vent 380 are extended long and are provided in the form of an open channel.

[0155] Referring to FIG. 8(a), the first cushion (311), the second cushion (312) and the third cushion (313) each have a surface that comes into contact with the user's waist that is recessed in the shape of a groove, and each cushion includes a first upper channel (361), a second upper channel (362) and a third upper channel (363) that provide a path for air to circulate toward the top.

[0156] In addition, air moving between the first cushion (311) and the second cushion (312) can be quickly released to the outside through the first opening (117). And, air moving between the first cushion (311) and the third cushion (313) can be quickly released to the outside through the second opening (119).

[0157] The first upper channel (361) is provided as a plurality of channels each having a curved shape toward both sides of the first cushion so that air can move toward the first opening (117) and the second opening (119).

[0158] The length, location and number of channels can vary as long as they move air quickly.

[0159] 8(b), the first pad (321) is connected to the first pad through hole (3211) and the first hip hole (231), and a part of the surface that comes into contact with either the left or right hip is recessed in the shape of a groove to include a first communication channel (381) that forms a path for circulating air forward. The second pad (322) is connected to the second pad through hole (3221) and the second hip hole (232), and a part of the surface that comes into contact with the other hip is recessed in the shape of a groove to include a second communication channel (385) that forms a path for circulating air forward.

[0160] In addition, the first pad (321) may be located at least on one of both sides of the first communication channel (381) and have at least one first front channel formed by being recessed in a groove shape, and the second pad (322) may be located at least on one of both sides of the second communication channel (385) and have at least one second front channel formed by being recessed in a groove shape.

[0161] 8(b) shows an example in which each pad has one communication channel and two front channels. That is, the first pad (321) includes two first front channels (3821, 3822) spaced apart from both sides of the first communication channel (381). And the second pad (322) includes two second front channels (3861, 3862) spaced apart from both sides of the second communication channel (382). The first front channels (3211, 3212) and the second front channels (3861, 3862) are formed in a curved shape.

[0162] Meanwhile, when the first pad (321) and the second pad (322) are attached to the second support part (130), they can be positioned so as not to overlap with the hip center hole (233). Therefore, a part of the air that enters through the hip center hole (233) can move toward the front incision (137) through between the first pad (321) and the second pad (322).

[0163] The space between the first pad 321 and the second pad 322 remains empty even when a user is seated, so that a passage for air movement can be formed.

[0164] Referring to FIG. 9(a), the functional chair (100) further includes a first protrusion (1391) and a second protrusion (1392) protruding from the rear surface of the second support portion (130) to support the second support portion (130).

[0165] The functional chair (100) may sway from side to side when a user sits on it due to the recessed support part (135) formed with a curved surface. When the functional chair (100) is used on a soft floor such as a sofa or cushion chair, the floor surface is deformed according to the shape of the functional chair (100). Therefore, the side-to-side movement of the functional chair (100) can be minimized.

[0166] However, when the functional chair (100) is used on a hard floor, some users may feel that the functional chair (100) sways significantly. The first protrusion (1391) and the second protrusion (1392) are provided to reduce the swaying of the functional chair (100).

[0167] That is, the first protrusion (1391) and the second protrusion (1392) can be formed at a certain distance to the left and right of the hip center hole (233). In other words, the first protrusion (1391) and the second protrusion (1392) are provided on the left and right sides of the second support part (130), respectively. If the second support part (130) is given a force in the right direction and tries to rotate, the second protrusion (1392) is in contact with the floor surface, so the functional chair (100) can be prevented from rotating. Conversely, if the second support part (130) is given a force in the left direction and tries to rotate, the first protrusion (1391) is in contact with the floor surface, so the functional chair (100) can be prevented from rotating.

[0168] That is, the first protrusion (1391) and the second protrusion (1392) will play a role like a lever for fixing the curved recessed support part (135) to the floor surface.

[0169] 9(b) illustrates a cross section taken along a line indicated as CS1-CS2 passing through the first protrusion 1391. The first protrusion 1391 may also be shaped to protrude from the rear surface 130b of the second support.

[0170] FIG. 9 illustrates an example of a functional seat (100) including protrusions (1391, 1392) formed to protrude to suppress left - right sway and a kind of legs. The first protrusion (1391) and the second protrusion (1392) are fixed to the second support portion (130) in a form protruding from the second support portion (130).

[0171] However, when the user is seated, the left - right movement (lateral sway) of the functional seat (100) may be necessary depending on the use environment.

[0172] For example, the lateral sway of the functional seat (100) to the left and right may be effective for the user's core muscle training. The core muscles refer to the skeleton and muscles related to the muscles of the spine (the vertical axis of the human body), the abdomen, the waist, the pelvis, and the diaphragm (the horizontal axis). Strengthening such core muscles also helps to maintain the body's balance and correct posture. A certain degree of left - right sway of the functional seat (100) may be useful for the core muscle training.

[0173] On the other hand, depending on the use environment, the user may prefer to suppress the lateral sway of the functional seat (100). Therefore, it is desirable that the user can choose the left - right movement of the functional seat (100) according to the use environment.

[0174] For this reason, FIG. 10(a) or FIG. 10(d) illustrates an example of a protruding detachable portion (138) which is a leg that the user can detach. That is, FIG. 9 illustrates an example in which protrusions (1391, 1392) functioning as legs are integrally formed with and fixed to the second support portion (130). On the other hand, FIG. 10 illustrates an example in which the protruding detachable portion (138) functioning as a leg can be detached from the second support portion (130) by the user's selection.

[0175] 10(a) and 10(c), the second support part (130) further includes a fastening hole part (198) formed through the recessed support part (135) and a protruding detachable part (138) detachably coupled to the fastening hole part (198), and the protruding detachable part (138) may protrude from the rear surface of the second support part (130) when coupled to the fastening hole part (198).

[0176] Therefore, when the protruding detachable portion (138) is coupled to the fastening hole portion (198), Like the protrusions (1391, 1392) described above, the lateral rocking of the functional chair (100) can be suppressed.

[0177] The fastening hole portion (198) may be formed through the second support portion (130), specifically, the recessed support part (135), to connect the protruding detachable portion (138).

[0178] The protruding detachable portion 138 and the fastening hole portion 198 are connected by a hook connection, but this is only one example, and other connection methods for detachment are also possible.

[0179] Specifically, the first protruding bridge (1381) and the second protruding bridge (1382) can be hook-coupled to the first fastening hole (1981) and the second fastening hole (1982) respectively.

[0180] The fastening hole portion (198) includes a first fastening hole (1981) located between the center of the second support portion (130) and one side of the second support portion (130) along the width direction of the second support portion (130), and a second fastening hole (1982) located between the center of the second support portion (130) and the other side of the second support portion (130) along the width direction of the second support portion (130).

[0181] The second support portion (130) includes a first fastening hole (1981) and a second fastening hole (1982) which are spaced apart from the hip center hole (233) to a certain extent on the left and right sides, respectively.

[0182] In addition, the protruding detachable portion (138) includes a first protruding bridge (1381) detachably coupled to the first fastening hole (1981) and a second protruding bridge (1381) detachably coupled to the second fastening hole (1982). The first protruding bridge (1381) and the second protruding bridge (1382) may protrude from the rear surface of the second support portion (130) when coupled to the first fastening hole (1981) and the second fastening hole (1982), respectively.

[0183] Meanwhile, when the first protruding bridge (1381) and the second protruding bridge (1382) are respectively connected to the first fastening hole (1981) and the second fastening hole (1982), the first protruding bridge (1381) and the second protruding bridge (1382) can rotate around the first fastening hole (1981) and the second fastening hole (1982) respectively.

[0184] In order to prevent this and to guide the protruding detachable portion (138) to be attached to the fastening hole portion (198) in a uniform manner, the second support portion (130) includes a leg detachable portion (197) in which a certain area having the fastening hole portion (198) from the recessed support part (135) is recessed to match the size of the surface to which the protruding detachable portion (138) is attached.

[0185] 10(c) shows a second detachable portion (1972) having a recessed support part (135) that is recessed to accommodate the size of the surface of the second protruding bridge (1382) facing the second fastening hole (1982). The second detachable portion (1972) is recessed and includes a second recessed surface (1972a) that forms the surface to which the second protruding bridge is attached, and a second recessed side surface (1972b) that forms the side surface of the second recessed surface (1972a) and connects the second recessed surface (1972a) to the rear surface (130b) of the second support part, and the second fastening hole (1982) can be disposed on the second recessed surface (1972a).

[0186] The recessed second detachable part (1972) is not bulging out to correspond to the recessed shape of the front surface of the second support part, i.e., the surface on the side where the user sits, but may be formed by removing a portion of the rear surface (130b) of the second support part in the thickness direction.

[0187] When the second protruding bridge (1382) is hook-connected to the second fastening hole (1982) located in the second recessed surface (1972a), the second recessed side surface (1972b) prevents the second protruding bridge (1382) from rotating.

[0188] Also, when the user connects the second protruding bridge (1382) to the second fastening hole (1982), the connection is guided by the second recessed side (1972b), making it easier to connect the second protruding bridge (1382) to the second fastening hole (1982).

[0189] Also, the second protruding bridge (1382) and the second detachable portion (1972) are not symmetrical like a sphere when viewed from above, but are asymmetrical.

[0190] For example, the first protruding bridge (1381) and the second protruding bridge (1382) may each be longer front to back than left to right.

[0191] Therefore, it is believed that the second protruding bridge (1382) can be prevented from rotating in place, and the user can always connect the second protruding bridge (1382) in a fixed direction.

[0192] Although not shown in the drawings, the first detachable part (1971), which performs the same function as the second detachable part (1972), also includes a first recessed surface and a first recessed side surface which perform the same function as the second detachable part (1972), and the first fastening hole (1981) would be located on the first recessed surface.

[0193] Therefore, the first protruding bridge (1381) and the first fastening can also be connected to a first detachable part (not shown) in which the recessed support part (135) is recessed according to the size of the surface facing the first fastening hole (not shown).

[0194] 10(b) illustrates the state in which the first protruding bridge (1381) is hook-coupled to the first fastening hole (1981). The first protruding bridge (1381) has a protruding hook (1381a) on a surface facing the first fastening hole (1981), and the first protruding bridge (1381) can be coupled to the rear surface (130b) of the second support part through the protruding hook (1381a).

[0195] Although not shown in the drawings, the second protruding bridge (1382), like the first protruding bridge (1381), may also have a protruding hook for coupling to the rear surface (130b) of the second support.

[0196] Figure 10(d) shows the first protruding bridge (1381) before it is connected to the second support part (130) through the first fastening hole (1981). The same is true for the second protruding bridge (1382).

[0197] Conversely, the user can apply pressure to the protruding hooks provided on the first protruding bridge (1381) and the second protruding bridge (1382) while they are connected to the second support part (130) to cause the protruding hooks to slip out through the first fastening hole (1981) and the second fastening hole (1982), thereby separating the first protruding bridge (1381) and the second protruding bridge (1382) from the second support part (130).

[0198] Fig. 11(a) illustrates a heating unit (910) for heating the functional chair (100). The functional chair (100) may require a heating function to warm the user's buttocks when seated depending on the usage environment. For this reason, the functional chair (100) may include a heating unit (910) for heating at least a portion of the second support part (130).

[0199] The heating part (910) is provided so as to be able to heat not only the second support part (130) but also the first support part (110).

[0200] Also, the heating unit (910) may use a heat ray. However, considering that the functional seat is made in the form of a thin and curved sheet, it is preferable that the heating unit (910) is provided in the form of a film. The film heater can be flexibly deformed, so that it can be attached to the upper surface of the second support part according to the shape of the second support part.

[0201] In Fig. 11(a), the position of the film heater is indicated by a dotted line. To use the film heater, an external power supply is required. Although a battery can be used, the functional chair (100) does not have enough space to accommodate a battery, considering the usage time of the heating unit (910).

[0202] For this purpose, the functional seat (100) further includes a cable (915) for supplying power to the heating unit (910). The cable (915) is inserted from the rear surface of the second support part (130) to the front surface of the second support part (130) through the hip center hole (233) and is electrically connected to the heating unit (910).

[0203] However, even if the cable (915) passes through the hip center hole (233), there is a risk that the cable (915) may be disconnected (opened) by the second support part. To prevent this, a space is required for the cable (915) to pass safely from the rear of the functional seat (100) to the hip center hole (233).

[0204] To this end, the recessed support part includes a protruding recess (2331) formed by an area located behind the hip center hole in a direction from the hip center hole toward the connecting support part, and the cable (915) is inserted into the hip center hole (233) through a space formed below the protruding recess, and is electrically connected to the heating part (910).

[0205] 11(b) shows an enlarged view of a portion cut by CR1-CR2. The cable (915) can be located under the area located behind the hip center hole in the area located between the hip center hole (233) and the connecting support part (150). If the cable (915) is repeatedly pressed by the recessed support part (135), the cable (915) may break.

[0206] Therefore, the recessed support part (135) further includes a protruding recess (2331) formed by a portion of the area located between the hip center hole (233) and the connecting support part (150) in the recessed support part (135) being raised upward in a direction from the hip center hole (233) toward the connecting support part (150), and the cable (915) is inserted through a space (2332) formed below the protruding recess (2331) and is electrically connected to the heating part (910).

[0207] 11(b) is an example showing that the cable (915) passes through the space (2332) formed under the recessed support part (135) by the protruding recess (2331). Since the space (2332) is secured even when the pressure of the user's weight is applied to the recessed support part (135), the risk of the cable (915) being cut off can be minimized.

[0208] Fig. 12(a) or Fig. 12(c) shows another embodiment of the functional seat chair (1000). A plurality of upper support parts (1110) are provided for dispersing pressure from the user's body, but referring to Fig. 12(a), another embodiment is shown in which the upper support part (1110) includes a first upper support part (1111) and a second upper support part (1112) separated from each other, and includes only one cutout between the first upper support part (1111) and the second upper support part (1112).

[0209] However, the lower support part (1150) is also divided into two because it must support both buttocks and thighs separately.

[0210] Therefore, referring to FIG. 12(b) and FIG. 12(c), the upper cushion portion (1310) also has two cushions which can be detached from the first upper support part (1111) and the second upper support part (1112), respectively.

[0211] The first upper part (1111) may include at least one through hole (not shown) for attaching and detaching a cushion to and from the first upper support part (1111). Similarly, the second upper support part (1112) may include at least one through hole (not shown) for attaching and detaching a cushion to and from the second upper support part (1112).

[0212] The present disclosure may be modified and implemented in various ways, and the scope of the rights is not limited to the above-mentioned embodiments. Therefore, if the modified embodiments include elements of the claims of the present disclosure, they are considered to belong to the scope of the rights of the present disclosure. [Explanation of symbols]

[0213] 100: Chair 110: First support part 115: Support joint part 111: First upper support part 112: Second upper support part 113: Third upper support part 117: First incision 119: Second incision 130: Second support part 131: First lower support part 132: Second lower support part 135: Depression support part 139: Projection part 150: Connection support part 151: First rib portion 152: Second rib portion 155: Center rib section 230: Hip hole section 300: Cushion part 310: Upper cushion part 320: Lower cushion section 900: Heating section 915: Cable

Claims

[Claim 1] a first support portion that supports at least a portion of the user's waist when the user is seated; A second support portion that is located in front of and below the first support portion when the user is seated, and supports at least a portion of the user's left and right buttocks and left and right thighs; and A connecting support portion connecting the first support portion and the second support portion; The first support portion A support coupling part connected to the connecting support part and supporting the user by wrapping the user's waist; and a plurality of upper support parts formed extending upward from the support coupling parts; The second support part is a recessed support part having a shape corresponding to the left and right buttocks of the user; and a plurality of lower support parts formed and extending forward from the recessed support part; The connection support portion is A functional chair including a first curved hole and a second curved hole formed through the connecting support part and arranged side by side in the left and right direction of the connecting support part, The functional chair is a central rib portion located between the first curved hole and the second curved hole; a first rib portion located between an inner side surface of the outer surface of the connecting support portion and the first curved hole, connecting the first support portion and the second support portion; and a second rib portion located between the inner other side surface of the outer surface of the connecting support portion and the second curved hole, connecting the first support portion and the second support portion; The first rib portion At least a portion of the first rib portion is formed in a wavy shape in a direction from the first curved hole toward the one side surface, At least a portion of the second rib portion is formed in a wavy shape in a direction from the second curved hole to the other side surface. Functional chair.

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