Chair

Abstract

A chair is disclosed. A chair of the present disclosure comprises the following: a chair body having a base frame; a first support component provided on the base frame which moves in response to a movement of a user while supporting the user's hips and back; and a second support component provided on the base frame which elastically supports the first support component and moves in coordination with a back support body of the first support component when the first support component is moved, wherein, through the interaction of the three support components, a wide range of positional changes is possible and the center of gravity shifts in accordance with the user's position, thereby maintaining overall equilibrium.

Description

BACKGROUND Technical area

[0001] The present disclosure relates to a chair, and more precisely to a chair whose position angle is automatically adjusted by actuation in response to a movement by a user from a position in which the user is working intensively to an angle in which the user can lie down and rest. Description of the related area

[0002] Generally, office or student chairs are used with desks in offices or homes for working or studying, and they typically belong to a different technical field than seats installed in motor vehicles. The seat, which is one of the components of such an office chair, serves to support the user's buttocks.

[0003] In such chairs of the related field, the legs of the chairs are not fixed to the floor, so that most of the chairs as a whole, including the legs, can be moved as desired, and these chairs have been proposed with various functions such as height adjustment, rotation and adjustment of the backrest angle.

[0004] Recently, the amount of time modern people spend sitting in chairs has gradually increased. Consequently, when sitting in a chair for extended periods, the weight of the upper body is concentrated on the sacrum and hip joints, and the force exerted on the hard, rigid seat can induce pain and numbness. As a result, users change their sitting position to alleviate the pain, which in turn perpetuates poor posture, potentially leading to lower back tension or conditions such as scoliosis. When the buttocks are pressed into close contact with the seat, sitting becomes uncomfortable, blood circulation is disrupted, skin color changes, and keratin buildup occurs, all of which are detrimental to health and appearance.

[0005] According to existing chairs, the component that supports the user's back and the component that supports the buttocks are not moved in a connected manner, such that they are insufficient to provide ergonomic support for user movement, and improvements are needed in this regard.

[0006] Although a Curble chair has been disclosed in the related field, it is limited to being used as a floor chair in rooms or on the floor or on existing chairs, and thus has limitations on being used as a general office chair or desk chair.

[0007] The above description provides background information to help understand the present revelation and does not refer to related territory that is well known in the field. SUMMARY

[0008] Therefore, one objective of the present disclosure is to provide a chair whose position angle is automatically adjusted by actuation in response to a movement by a user from a case in which the user is performing intensive work to an angle in which the user can lie down and rest.

[0009] According to one aspect of the present disclosure, a chair can be provided comprising: a chair body having a base frame; a first support component provided on the base frame and configured to move in response to a movement of a user while supporting the user's hips and back; and a second support component provided on the base frame and configured to support the first support component and to move in coordination with a back support body of the first support component when the first support component is moved, the second support component assisting the rolling of a hip support body of the first support component and elastically supporting the back support body of the first support component.

[0010] The first support component may include: the hip support body, which is movably provided on the base frame and configured to support a user's hips; the back support body, which is connected to the hip support body and is supported by the second support component while supporting a user's back; and a rotation guide element, which is rotatably coupled to the back support body and configured to guide a rotation of the first support component by being guided by a guide arm provided on the second support component.

[0011] The second support component may include: a base support body that carries the back support body; a connecting plate having one side coupled to the base frame and another side coupled to the base support body; a guide arm provided on the connecting plate and configured to guide movement of the back support body; and a first elastic support component provided on the base support body and configured to elastically support the back support body.

[0012] The chair may further include: a leg support component that is movably provided on the base frame and configured to support the legs of a user; and a center of gravity displacement component that is provided on the second support component and configured to control a movement of a center of gravity of the first support component.

[0013] Furthermore, according to another aspect of the present disclosure, a chair can be provided comprising: a chair body having a base frame and a base support arm provided on the base frame; a first support component spaced apart from the base frame and configured to move in response to a movement of a user while supporting the user's hips and back; and a second support component arranged between the base frame and the first support component and configured to support the first support component and to move in coordination with a back support body of the first support component when the first support component moves, the first support component and the second support component moving forward when the back support body and a base support body of the second support component tilt backward.

[0014] The first support component may include: a base roller provided on the base support arm; and at least one base support roller rotatably provided on the base frame and configured to support a connecting plate of the second support component, and wherein the second support component may further include a roller element provided on the base support body, connected to the base roller and configured to prevent the base roller from separating from the base support body.

[0015] The chair may further include a lumbar support provided on the back support body and configured to support the back of a user, whereby the lumbar support can prevent a disturbing effect on the user's back by moving backward when the back support body tilts backward.

[0016] According to one aspect of the present disclosure, a chair can be provided comprising: a chair body having a base frame; a first support unit arranged on the base frame and configured to support the hips and back of a user; and a second support unit provided on the base frame and configured to support the first support unit, wherein a portion of the second support unit, which supports the hips of the user, moves forward when the first support unit tilts backward.

[0017] The first support unit may include: a first hip support component located on an upper section of the base and configured to support a portion of the second support unit that supports the user's hips; a first back support component connected to the first hip support component and configured to support the user's back; and a first elastic support component provided on the first back support component and configured to be elastically supported by the second support unit in a portion corresponding to the first back support component when the first back support component tilts backward.

[0018] The second support unit may include: a second hip support component, which is movably supported by the base frame and coupled to the first hip support component; a second back support component, which is rotatably coupled to the chair body and connected to the second hip support component; and a stop component, which is provided on the second hip support component and configured to limit movement of the second hip support component.

[0019] The second hip support component may include: a second hip support body, wherein an upper section thereof is detachably coupled to a first hip support body of the first hip support component; and a second hip support frame, which is movably coupled in a front-back direction to the base frame and is detachably coupled to the second hip support body, wherein the chair body may further include an elastic body support component provided on the base frame and elastically supporting movement of the second hip support frame.

[0020] The chair may also include a lumbar support component, which is provided on a first back support component of the first support unit and is configured to support the lumbar region of a user.

[0021] The embodiments of the present disclosure can provide a chair in which the position angle is automatically adjusted by moving in response to movements of a user from a case in which the user is performing intensive work to an angle in which the user can lie down and rest.

[0022] Furthermore, since the hip support body and the back support body move in response to a user's movement, it is possible to support the user's back and hip areas more effectively.

[0023] Furthermore, since the second support component carries the first support component and is carried by the third support component when the first support component tilts, a uniform movement can be achieved and the tilting can also be achieved uniformly.

[0024] Furthermore, the center of gravity shifts due to the forward movement of the center of gravity displacement component or the first support component and the second support component when the back support body and the base support body tilt backward, thereby preventing the risk of the chair tipping over. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a side view schematically showing a chair according to an embodiment of the present disclosure; Fig. 2 is a side view showing schematically the state in which a first support component, which is in Fig. 1 is shown, separated from a second support component; Fig. 3 is a view that shows the operation of a lumbar support, which is in Fig. Figure 1 illustrates and schematically demonstrates the state in which a support movement component has been actuated and the lumbar support has been moved backwards by the rotation of a rotation guide element; Fig. Figure 4 is an enlarged view of the lumbar support area, which is located in Fig. 3 is shown; Fig. 5 is another embodiment of the lumbar support, which is described in Fig. 3 is shown. Fig. Figure 6 is a view that schematically illustrates the state in which the first support component and the second support component, which are in Fig. 1 shown, have been tilted backwards; Fig. 7 is a view illustrating the operation of the present embodiment and schematically illustrating the process by which a back support body, which is supported by a base support body, is inclined; Fig. Figure 8 is a view that schematically illustrates a center of gravity displacement component of the present embodiment; Fig. Figure 9 is a view that schematically illustrates the operation of the center of gravity displacement component, which is in Fig. 8 is shown; Fig. Figure 10 is a view that schematically illustrates a support plate which is in Fig. 1 is shown; Fig. Figure 11 is a side view that schematically illustrates a chair according to a further embodiment of the present disclosure; Fig. Figure 12 is a view that schematically illustrates the state in which a back support body and a base support body, which are in Fig. 11 shown, have been tilted backwards and a hip support body and a connecting plate have been moved forwards; and Fig. 13 is an enlarged view that schematically shows the area of ​​a basic role that is in Fig. Figure 11 illustrates this. DETAILED DESCRIPTION

[0025] It is necessary to refer to the accompanying drawings, which explain preferred embodiments of the present disclosure, and to the contents of the accompanying drawings in order to assist in a sufficient understanding of the present disclosure, the functional advantages of the present disclosure, and the problems solved by implementing the present disclosure.

[0026] The present disclosure is described in detail below by describing exemplary embodiments of the present disclosure with reference to the accompanying drawings. Identical reference numerals given in the drawings indicate identical components.

[0027] Fig. Figure 1 is a side view schematically showing a chair according to one embodiment of the present disclosure. Fig. 2 is a side view showing schematically the state in which a first support component, which is in Fig. 1 shown, has been separated from a second support component, Fig. 3 is a functional view of a lumbar support, which is in Fig. Figure 1 shows, and schematically illustrates the state in which a support movement component has been actuated and the lumbar support has been moved backwards by a rotation of a rotation guide element. Fig. Figure 4 is an enlarged view of the lumbar support area, which is located in Fig. 3 is shown, and Fig. 5 is another embodiment of the lumbar support, which is described in Fig. 3 is shown.

[0028] Furthermore, Fig. 6 A view that schematically illustrates the state in which the first support component and the second support component, which are in Fig. 1 shown, have been tilted backwards, Fig. 7 is a view illustrating the operation of the present embodiment and schematically illustrating the process by which a back support body, which is supported by a base support body, is inclined. Fig. Figure 8 is a view that schematically illustrates a center of gravity displacement component of the present embodiment, Fig. Figure 9 is a view that schematically illustrates the operation of the center of gravity displacement component, which is in Fig. 8 is shown, and Fig. Figure 10 is a view that schematically illustrates a support plate which is in Fig. 1 is shown.

[0029] As shown in the figures, a chair according to the present embodiment comprises the following: a chair body 100 having a base frame 110; a first support component 200 provided on the base frame 110 which moves in response to a movement of a user while supporting the user's hips and back; a second support component 300 provided on the base frame 110 which elastically supports the first support component 200 and moves in coordination with a back support body 220 of the first support component 200 when the first support component 200 is moved; a third support component 400 which is connected to the second support component 300 and elastically supports a base support body 310 of the second support component 300; and a center-of-gravity displacement component 500 which is provided on the base frame 110 and on the second support component 300 and controls the displacement of the first support component 200.

[0030] The stool sample 100 contains, as in Fig. Figure 1 shows a base frame 110, a support column 120 which supports the lower surface of the base frame 110, several support legs 130 which are provided on the support column 120, and several wheel elements 140 which are provided on the several support legs 130.

[0031] A leg support component provided on the chair body 100 extends forward from the chair body 100 and can support the leg area of ​​the user.

[0032] In the present embodiment, the leg support component includes a load sensor, provided on the hip support body 210 or on the base frame 110, which detects a load exerted by the user, and a drive unit, provided on the base frame 110, which extends the leg support element forward or returns it to its original position. In the present embodiment, the drive unit can include a known drive component containing a cylinder or a motor.

[0033] In the present embodiment, the leg support component can be controlled such that it only operates when the first support component 200 tilts backwards in relation to the chair body 100.

[0034] The first support component 200 is provided on the base frame 110 and can move in response to a user's movement while supporting the user's hips and back.

[0035] In the present embodiment, the first support component contains 200, as shown in Fig. Figure 1 shows the following: a hip support body 210, which is movably provided on the base frame 110 and supports the hips of a user; a back support body 220, which is connected to the hip support body 210 and is supported by the second support component 300 while supporting the back of a user; a rotation guide element 230, which is rotatably provided on the back support body 220 and guides the tilting of the back support body 220; and a support movement component 240, which is provided on the back support body 220 in such a way that it is connected to the rotation guide element 230 and moves a lumbar support 221, which is provided on the back support body 220.

[0036] The hip support body 210 of the first support component 200 supports the hips of a user and contains, as in Fig. Figure 1 shows a support plate 211 and a body hole 212, which is provided through the side walls of the hip support body 210 and carries guide rollers 321 of the second support component 300 on the side walls of the hip support body 210.

[0037] In the present embodiment, the support plate 211, which directly supports the hips of a user, contains, as in Fig. Figure 10 shows a planar section 211a and a curved section 211b, which is convexly curved from one end of the planar section 211a towards the supporting leg 130.

[0038] In the present embodiment, when the first support component 200 tilts backwards, the flat section 211a, which supports the hips of a user, is arranged on a connecting plate 320 in such a way that the rotation guide element 230 can engage smoothly with a guide arm 330.

[0039] In the present embodiment, the planar section 211a can be provided in an area adjacent to the back support body 220 of the first support component 200.

[0040] Furthermore, in the present embodiment, a pair of guide rollers 321 can be provided on the side wall of the hip support body 210 in which the body opening 212 is formed, as shown in Fig. Figure 1 shows that in the present embodiment, the pair of guide rollers 321 can support the hip support body 210 when the hip support body 210 tilts, such that the hip support body 210 can tilt in a stable manner.

[0041] The back support body 220 of the first support component 200, which supports the back of a user, can move together with the hip support body 210 in response to a movement of a user.

[0042] In the present embodiment, the lumbar support 221, which supports the lumbar region of a user, can be provided on the back support body 220, as shown in Fig. Figure 1 shows that in the present embodiment, the lumbar support 221 is moved backward by the support movement component 240 when the back support body 220 tilts backward, as shown in Figure 1. Fig. Figure 7 shows that it is possible to minimize discomfort in the back of a user due to the pressure from the lumbar support 221 in a lying position.

[0043] Furthermore, in the present embodiment, the lumbar support 221 can be directly connected to the support movement component 240, as shown in Fig. 5 is shown, and are actuated by these. That is, the connecting element 242, which connects the rotation guide element 230 and the pair of support rollers 241, is connected to the lumbar support 221 and not to the back support body 220, making it possible to move the lumbar support 221 forwards and backwards.

[0044] The rotation guide element 230 of the first support component 200 is rotatably connected to the back support body 220 and is supported by the guide arm 330, which is provided on the second support component 300, and can be moved together with the back support body 220 when the first support component 200 tilts backwards.

[0045] In this embodiment, the rotary guide element 230 has several teeth that can mesh with teeth provided on the guide arm 330.

[0046] Furthermore, in the present embodiment, the rotation guide element 230 can be connected to the multiple support rollers 241 provided on the back support body 220 by means of the connecting element 242.

[0047] The support movement component 240 of the first beam component 200 contains, as in Fig. Figure 3 shows the following: a pair of support rollers 241, one of which is rotatably coupled to the upper end of the lumbar support 221 and the other is arranged higher; and a connecting element 242, which connects the pair of support rollers 241, the back support body 220 and the rotation guide element 230 and transmits the rotation force of the rotation guide element 230 to the lumbar support 221 in order to adjust the extent of the protrusion of the lumbar support 221.

[0048] In the present embodiment, the rotational force of the rotational guide element 230 is transferred to the connecting element 242, and the connecting element 242 is, as shown in Fig. As shown in Figure 3, the upper end of the lumbar support 221 is connected in such a way that it is possible to move the lumbar support 221 backwards. Accordingly, in a lying position of the user, the section of the lumbar support 221 projecting forwards from the front of the back support body 220 is almost completely removed, thus preventing discomfort in the user's back caused by the disruptive influence, i.e., the pressure from the lumbar support 221.

[0049] The second support component 300 is provided on the base frame 110 and elastically supports the first support component 200, and when the first support component 200 is moved, as in Fig. As shown in Figure 7, some components can move in coordination with the back support body 220 of the first support component 200.

[0050] In the present embodiment, the second support component contains 300, as shown in Fig. Figure 1 shows the following: a base support body 310, which supports the back support body 220 of the first support component 200; a connecting plate 320, one side of which is coupled to the base frame 110 and the other side of which is connected to the base support body 310; a guide arm 330, which is provided on the connecting plate 320 and guides a movement of the base support body 310 and a movement of the back support body 220; a first elastic support component 340, which is provided on the base support body 310 and elastically supports the back support body 220; and a head support component 350, which is provided on the base support body 310 and supports the head of a user.

[0051] The base support body 310 of the second support component 300 can be moved in such a way that it tilts backwards together with the back support body 220, as shown in Fig. 6 is shown.

[0052] The connecting plate 320 of the second support component 300 can have one side that is coupled to the base frame 110 and the other side on which the base support body 310 is provided in such a way that it is inclined backwards.

[0053] In the present embodiment, the connecting plate 320 can be directly connected to the base support body 310 and the base support body 310 can have elasticity, wherein the base support body 310 can be moved in such a way that it tilts backwards, or it can be connected to the back support body 220 by the guide arm 330.

[0054] Furthermore, in the present embodiment, toothing is provided on the lower surface of the connecting plate 320, as shown in Fig. 2 is shown, and the teeth mesh with the drive gear 530 of the center-of-gravity displacement component 500. As a result, the chair body 100 can be moved backward when the center of gravity is shifted and the drive gear 530 is actuated, as shown in Fig. Figure 9 is shown. In the present embodiment, the chair body 100 can be held in position while the other components can be moved.

[0055] Furthermore, in the present embodiment, as in Fig. 1 and Fig. As shown in Figure 2, guide rollers 321 are provided on the connecting plate 320. In the present embodiment, the guide rollers 321 are rotatably mounted on the side of the connecting plate 320, such that the hip support body 210 can be supported stably and evenly when the first support component 200 tilts backward or returns to its original position. That is, in the present embodiment, the guide rollers 321 are arranged in contact with the area of ​​the hip support body 210 that has the body opening 212, such that the hip support body 210 can be supported. In the present embodiment, a pair of guide rollers 321 can be spaced apart on the side of the base frame 110.

[0056] The guide arm 330 of the second support component 300 is provided on the connecting plate 320 and can guide a movement of the rotary guide element 230 and can also guide the base support body 310 in such a way that it tilts backwards when the first support component 200 tilts backwards.

[0057] In the present embodiment, the guide arm 330 can be provided on both sides of the connecting plate 320 and can have teeth and mesh with the rotary guide element 230.

[0058] The first elastic support component 340 of the second support component 300 is provided on the base support body 310, as shown in Fig. 3 is shown, and can elastically support the tilting back support body 220.

[0059] In the present embodiment, the first elastic support component 340 contains, as in Fig. Figure 3 shows the following: a first support block 341 provided on the base support body 310; a first rod 342 for elastic support, rotatably coupled to the first support block 341; a first support ball 343 provided on the first rod 342 for elastic support and supporting the back support body 220; and a first spring element 344 having one side provided on the base support body 310 and the other side connected to the first rod 342 for elastic support, and supporting the first rod 342 for elastic support.

[0060] Before the back support body 220 tilts backwards, in the present embodiment the first support ball 343 of the first elastic support component 340 and the back support body 220 are spaced apart from each other, as shown by the dotted lines in Fig. Figure 7 shows that when a user's load is applied to the back support body 220 in this state, the back support body 220 tilts backward, and as the load continues to be applied to the back support body 220, the back support body 220 comes into contact with the first support ball 343 and the elastic spring 344 contracts. As the load continues to be applied to the back support 220, the first support ball 343 also comes into contact with the back base support body 310, such that the back support body 220 and the base support body 310 together tilt backward and reach the state of the solid line shown in Figure 7. Fig. Figure 7 is shown. In this state, the second elastic spring 344 of the second support component 300 is also contracted.

[0061] The head support component 350 of the second support component 300 is provided at the upper section of the base support body 310, as shown in Fig. 1 is shown, and can support the head or neck of a user.

[0062] The third support component 400 elastically supports the second support component 300, as shown in Fig. 2 is shown, and contains, as in Fig. Figure 2 shows a support plate 410 coupled to the connecting plate 320, and a second elastic support component 420 having one side coupled to the support plate 410 and the other side coupled to the base support body 310, elastically supporting the base support body 310.

[0063] In the present embodiment, the second elastic support component 420 contains, as in Fig. Figure 1 shows the following: a second support block 421 provided on the support plate 211; a second rod 422 for elastic support, rotatably coupled to the second support block 421; a second support ball 423 provided on the second rod 422 for elastic support and supporting the back support body 220; and a second elastic spring 424 having one side provided on the base support body and the other side connected to the second rod 422 for elastic support, and supporting the second rod 422 for elastic support.

[0064] If the user shifts the center of gravity of the chair by leaning back or in any other way, the center of gravity shifting component 500 can shift the center of gravity of the chair so that it corresponds to the shifted center of gravity.

[0065] In the present embodiment, the center of gravity displacement component 500 contains, as in Fig. Figure 8 shows the following: a first pressure sensor 510, which is provided on the connecting plate 320 and detects a pressure exerted on the connecting plate 320; a second pressure sensor 520, which is provided on the connecting plate 320 spaced apart from the first pressure sensor 510 and detects a pressure exerted on the connecting plate 320; and a drive gear 530, which is rotatably provided on the base frame 110 and moves the second support 300 by meshing with the teeth provided on the lower surface of the connecting plate 320.

[0066] In the present embodiment, the first pressure sensor 510 is as shown in Fig. 8 is shown, arranged between a guide roller 321 and a guide arm 330 and the second pressure sensor 520 can be arranged between the pair of guide rollers 321.

[0067] In the present embodiment, the drive gear 530 can be connected to and rotated by a drive unit, such as a drive motor provided on the base frame 110.

[0068] Although Fig. Figure 9 illustrates that the chair body 100 is moved; however, the present disclosure is not limited to this and the second support 300 may be configured to move.

[0069] Fig. Figure 11 is a side view illustrating schematically a chair according to a further embodiment of the present disclosure. Fig. Figure 12 is a view that schematically illustrates the state in which a back support body and a base support body, which are in Fig. 11 are shown, have been tilted backwards and a hip support body and a connecting plate have been moved forwards, and Fig. Figure 13 is an enlarged view that schematically shows the range of basic roles that are in Fig. The figures shown in 11 illustrate this.

[0070] A chair 1a according to the present embodiment, as in Fig. Figure 11 differs from the design described above in that the structure is simplified and safety is ensured by shifting the center of gravity when tilting using a mechanical mechanism.

[0071] A stool body 100a, as in Fig. Figure 11 shows a base support arm 150 projecting from the rear end of a base frame 110a and a base roller 160 rotatably coupled to the upper section of the base support arm 150.

[0072] In the present embodiment, the structure in which the base roller 160 and the roller element 360 are connected by a connecting component can perform a separation prevention function to prevent the base support body 310 from disengaging when the base support body 310 tilts. Furthermore, the base support body 310 can be tilted naturally by rolling friction between the base support body 310 and the base roller 160.

[0073] In the present embodiment, several base support rollers 170 are spaced apart on the upper surface of the base frame 110, as shown in Fig. Figure 12 shows the forward and backward movement of the connecting plate 320.

[0074] The roller element 360 can be provided on the base support body 310 of the second support component 300 (300a), as described above.

[0075] The lumbar support 221 of the present embodiment and the embodiment described above can be arranged such that its main portion is located behind the back support body 220, as shown in Fig. 14 is shown.

[0076] Fig. Figure 14 is a perspective view that schematically illustrates a chair according to one embodiment of the present disclosure. Fig. 15 is a perspective view from behind of Fig. 1, Fig. 16 is a view of the right side of Fig. 1, Fig. 17 is a rear view of Fig. 1, Fig. 18 is a view that includes the main components of Fig. 1 illustrates, and Fig. 19 is a view of the left side of Fig. 18.

[0077] Fig. Figure 20 is a perspective view illustrating a first support unit and a lumbar support component, which are shown in Fig. 18 are shown, Fig. 21 is a front view of Fig. 20, Fig. Figure 22 is an enlarged perspective view illustrating a first elastic support component, which is in Fig. 20 is shown, Fig. Figure 23 is a perspective view illustrating a second support unit, which is located in Fig. 18 is shown, Fig. 24 is a view of the right side of Fig. 23 and Fig. 25 is a perspective view of a single part, illustrating the stop component, which is in Fig. 23 is shown.

[0078] Furthermore, Fig. 26 a perspective view showing the configuration except for the second hip support body, which is in Fig. 23 is shown, illustrating Fig. 27 is a top view of Fig. 26, Fig. Figure 28 is a perspective view showing the configuration except for the second and third levers, which are shown in Fig. 26 are shown, illustrating Fig. 29 is a perspective view of a single part, illustrating that the second hip support frame, which is in Fig. 28 shows that it has been separated from the base frame. Fig. Figure 30 is a perspective view illustrating the state of use of the present embodiment, i.e., a user sitting on the chair, and Fig. 31 is a perspective view that shows the user, who is in Fig. Figure 30 illustrates this, showing him leaning back.

[0079] As shown in these figures, a chair 1b according to the present embodiment comprises the following: a chair body 1000 having a base frame 1100; a first support unit 2000 arranged on the base frame 1100 and supporting the hips and back of a user; a second support unit 3000 provided on the base frame 1100 and supporting the first support unit 2000; a lumbar support component 4000 provided on a first back support component 2200 of the first support unit 2000 and supporting the lumbar region of a user; and a lever component 5000 provided on the chair body 1000 and on the second support unit 3000.

[0080] The stool sample 1000 contains, as in Fig. Figure 15 shows the following: a base frame 1100; a support column 1200, which supports the lower surface of the base frame 1100; several support legs 1300, which are provided on the support column 1200; several wheel elements 1400, which are provided on the several support legs 1300; a base support arm 1500, which is provided behind the base frame 1100 and is coupled to a second back support frame 3210 of the second support unit 3000 and a lumbar connecting element 4300 of the lumbar support component 4000; an elastic body support component 1600, which is provided on the base frame 1100 and elastically supports a movement of a second hip support frame 3120 of the second support unit 3000; a bending frame 1700, which is provided on the upper section of the base frame 100; several body support rollers 1800, which are coupled to the bending frame 1700 and support the side walls of the second hip support frame 3123;and a leg support component 1900 coupled to the front of the base frame 1100 and raised by the second hip support frame 3120 to support a user's feet as the second hip support frame 3120 moves forward.

[0081] In the present embodiment, the elastic body support component 1600, which guides the second hip support frame 3120 such that it moves in the longitudinal direction of the base frame, includes, as shown in Fig. Figure 15 shows a body 1610 for elastically supporting the body, which is provided on the base frame 1100; a shaft 1620 for elastically supporting the body, which has an end coupled to the body 1610 for elastically supporting the body, and a body spring 1630 coupled to the shaft 1620 for elastically supporting the body.

[0082] The first support unit 2000, which directly supports the back and hip areas of a user, includes a first hip support component 2100, which is located on the upper section of the base frame 1100 and supports the area of ​​the second support unit 3000, which supports the hips of a user; a first back support component 2200, which is connected to the first hip support component 2100 and supports the back of a user; and a first elastic support component 2300, which is provided on the first back support component 2200 and elastically supports the second support unit 3000 in the area corresponding to the first back support component 2200 when the first back support component 2200 tilts backward.

[0083] The first hip support component 2100 of the first support unit 2000, which directly supports a user's hips, contains, as shown in Fig. Figure 20 shows the following: a first hip support body 2110; a first support arm 2120 provided behind the first hip support body 2110; a lumbar support shaft 2130 provided on the first hip support body 2110 in the area where the first support arm 2120 is provided and which carries the lumbar support component 4000; a separation prevention body 2140 provided on the side wall of the first hip support body 2110 and which locks and carries a stop component roller 3350 of a stop component 3300; a separation prevention cover 2150 which is detachably coupled to the separation prevention body 2140 and locks one side of a prevention hole 2141 provided on the separation prevention body 2140; and a first spring 2160, which is coupled to the lumbar support shaft 2130 and elastically supports the first back support frame 2210.

[0084] In the present embodiment, the lower surface of the first hip support body 2110 can be placed on the upper section of the second hip support body 3110, which is in Fig. 23 shown, can be worn and can be locked and worn by the stop component roller 3350 of the stop component 3300, preventing it from disengaging.

[0085] The first back support component 220 of the first support unit 2000 can be rotatably coupled to the lumbar support shaft 2130, as shown in Fig. 20 is shown.

[0086] In the present embodiment, the first back support component contains 2200, as shown in Fig. Figure 20 shows a first back support frame 2210 rotatably coupled to the lumbar support shaft 2130, and a first back support body 2220 coupled to the first back support frame 2210.

[0087] In the present embodiment, a first lumbar projection hole can be provided on the first back support frame 2210, as shown in Fig. 22 is shown.

[0088] In the present embodiment, a second lumbar projection hole can be provided on the first back support body 2220, as shown in Fig. Figure 1 shows that in the present embodiment, the first lumbar support projection hole 2211 and the second lumbar support projection hole 2221 can be connected to each other in such a way that a lumbar support 4100 of the lumbar support component 4000 can move in the front-back direction of the first back support body.

[0089] The first elastic support component 2300 of the first support unit 2000 can, as in Fig. 22 is shown to be coupled to the rear of the first back support frame 2210 in such a way that the first back support body 2220 is evenly supported by the second back support body when the first back support frame 2210 tilts backwards.

[0090] In the present embodiment, the first elastic support component contains 2300, as shown in Fig. Figure 22 shows a first shaft 2310 for elastic support, coupled to the upper rear of the first back support frame 2210; a first body 2320 for elastic support, rotatably coupled to the first shaft 2310 for elastic support; a first elastic spring 2330, having one side coupled to the first shaft 2310 for elastic support and the other side supporting the interior of the first body 2320 for elastic support; and a first roller 2340 for elastic support, provided at the lower end of the first body 2320 for elastic support.

[0091] In the present embodiment, when the first back support component 2200 tilts towards the second back support component 3200 and comes into contact with the second back support frame 3210, the area of ​​the first body 2320 for elastic support, with which the first roller 2340 for elastic support, which is in Fig. 22 is shown, coupled, move close to the first back support frame 2210 and elastically support the first back support component 2200.

[0092] The second support unit 3000 is provided on the base frame 1100, carries the first support component and moves forward when the first back support component 2200 tilts backward, in such a way that the center of gravity shifts forward, thereby preventing the chair body 1000 from tipping over.

[0093] In the present embodiment, the second carrier unit contains 3000, as shown in Fig. Figure 26 shows a second hip support component 3100, which is movably mounted on the base frame 1100 and with which the first hip support component 2100 is coupled; a second back support component 3200, which is rotatably coupled to the chair body 1000 and is connected to the second hip support component 3100; and a stop component 3300, which is provided on the second hip support component 3100 and limits a movement of the second hip support component 3100.

[0094] The second hip support component 3100 of the second support unit 300 contains, as in Fig. Figure 25 shows a second hip support body 3110 and a second hip support frame 3120, which is detachably coupled to the lower section of the hip support body and is coupled in such a way that it moves in the front-back direction of the base frame 1100.

[0095] In the present embodiment, as in Fig. As shown in Figure 25, receiving grooves 3111 are provided on both side walls of the second hip support body 3110 and the stop component 3300 can be detachably coupled to the receiving grooves 3111.

[0096] In the present embodiment, several first coupling elements 3121 can be provided on the upper section of the second hip support frame 3120, as shown in Fig. Figure 26 shows that in the present embodiment, the multiple first coupling elements 3121 can be detachably coupled to the lower surface of the second hip support body 3110 using screws or bolts.

[0097] In the present embodiment, a movement guide hole 3122 can be provided in the second hip support frame 3120, as shown in Fig. Figure 29 shows that in the present embodiment, the movement guide hole 3122 can be provided in the longitudinal direction of the second hip support frame 3120 and can be provided as a spaced-apart pair. In the present embodiment, the elastic body support component 1600 can be exposed above the movement guide hole 3122, as shown in Figure 29. Fig. 28 is shown.

[0098] In the present embodiment, a pair of second coupling elements 3123 can be provided spaced apart behind the second hip support frame 3120, as shown in Fig. Figure 29 shows that in the present embodiment, the second coupling elements 3123 can support the rear end of the shaft 1620 for elastic support of the body, as shown in Fig. 26 is shown. If the second hip support frame 3120 in the present embodiment is in relation to Fig. When moved forward 26, the shaft 1620 can be exposed to the rear by the amount of movement of the second hip support frame 3120 from the second coupling elements 3123 for elastic support of the body.

[0099] In the present embodiment, the second back support component 3200 of the second support unit 3000 has one side rotatably coupled to the base support arm 1500 and the other side rotatably coupled to the second hip support frame 3120 and can provide a force that can move the second hip support frame 3120 forward when the first back support component 2200 tilts backward, as shown in Fig. 16 is shown.

[0100] In the present embodiment, the second back support component 3200 comprises a second back support frame 3210, the lower section of which is rotatably coupled to the base support arm 1500; and a headrest 3220, which is provided at the upper end of the second back support frame 3210, as shown in Fig. 26 is shown.

[0101] In the present embodiment, a frame connecting member 3211, which is rotatably coupled to the second hip support frame 3120, can be provided at a lower end of the second back support frame 3210, as shown in Fig. 28. In the present embodiment, a first hole 3212 and a second hole 3213 can be provided on the second back support frame 3210, as shown in Fig. As shown in Figure 28, a lumbar connecting element 4300 of the lumbar support component 4000 can be inserted into the first hole 3212, and a lumbar cover 4200 of the lumbar support component 4000 can be inserted into the second hole 3213. The lumbar cover 4200 inserted into the second hole 3213 can project rearward from the second back support frame 3210, as shown in Figure 28. Fig. 31 is shown.

[0102] Furthermore, in the present embodiment, a sliding guide hole 3214 can be provided on the lower section of the second back support frame 3210, as shown in Fig. 28 is shown, such that the lower section of the second back support frame 3210 slides in relation to the base support arm 1500.

[0103] In the present embodiment, the stop component 3300 of the second support unit 300 is provided on the second hip support body 3110 and is locked and supported by the prevention hole 2141 of the separation prevention body 2140, making it possible to prevent the second hip support body 3110 from disengaging.

[0104] In the present embodiment, the stop component 3300 can be, as in Fig. Figure 25 shows the following components: a stop component body 3310, which is detachably coupled to the receiving groove 3111 of the second hip support body 3110 by screws or bolts; a stop component shaft 3320, wherein both ends of this shaft are coupled to the inner wall of the stop component body 3310; a stop component spring 3330, which is coupled to the stop component shaft 3320 in such a way that it can be extended and contracted; a motion block 3340, which is movably coupled to the stop component shaft 3320 and is elastically supported by the stop component spring 3330; and a stop component roller 3350, which is rotatably coupled to the motion block 3340 and is locked and supported by the locking hole 2141 of the separation prevention body 2140.

[0105] In the present embodiment, the motion block 3340 can be provided as a pair spaced apart from each other, as in Fig. 25 is shown, and the pair of motion blocks 3340 can be elastically supported by the stop component spring 3330.

[0106] The lumbar support component 4000 is, as in Fig. 20 is shown, provided on the first back support component 2200 and can support the lumbar region of a user.

[0107] In the present embodiment, the lumbar support component 4000 comprises the following: several lumbar supports 4100 projecting forward from the first back support body 2220, as shown in Fig. Figure 1 shows a lumbar support cover 4200 arranged behind the first back support frame 2210, supporting the multiple lumbar supports 4100 to prevent the lumbar supports from disengaging, and projecting rearward from the second back support frame 3210 when the first back support frame 2210 tilts backward, as shown in Figure 1. Fig. 31; and a lumbar connecting element 4300, which is provided on a lower section of the lumbar cover 4200 and is rotatably coupled to the first support arm 2120, as shown in Fig. 20 is shown.

[0108] In this embodiment, the lumbar connecting element 4300, as in Fig. Figure 10 shows a connecting hole 4310, and the connecting hole 4310 can be coupled to the first support arm. Furthermore, in this embodiment, the connecting hole 4310 is formed in a curved shape such that it is possible to guide the lumbar connecting element 4300 in such a way that it rotates along a semi-elliptical path.

[0109] The lever component 5000 includes a first lever 5100, which is provided on the first hip support component 2100, as shown in Fig. 2 shown, and includes a second lever 5200 and a third lever 5300, which are provided on the second hip support component 3100, as shown in Fig. 27 is shown.

[0110] The embodiments of the present disclosure can provide a chair whose position angle is automatically adjusted by moving in response to a movement of a user from a case in which the user is performing intensive work to an angle in which the user can lie down and rest. Description of reference symbols 1,1a,1b Chair 100,100a Stool body 110,110a Basic frame 111 level section 112 curved section 120 support column 130 support leg 140 wheel element 150 base support arm 160 basic roll 170 Base support roller 200,200a first support component 210 hip support bodies 211 Carrier plate 211a level section 211b curved section 212 Body Hole 220 back support bodies 221 Lumbar support 230 Rotary guide element 240 Support movement component 241 Carrier roller 242 Connecting element 300 second support component 310 Base support body 320 connecting plate 321 Leadership role 330 guide arm 340 first elastic support component 341 first support block 342 first rod for elastic support 343 first carrier sphere 344 first elastic spring 350 Head support component 360° roller element 400 third support component 410 Carrier plate 420 second elastic support component 421 second support block 422 second bar for elastic support 423 second support sphere 424 second elastic spring 500 Center of gravity shift component 510 first pressure sensor 520 second pressure sensor 530 drive gear 1000 stool samples 1100 base frame 1200 support column 1300 support leg 1400 wheel element 1500 base support arm 1600 elastic body support component body 1610 bodies for elastic carrying of the 1620 wave for elastic support of the body 1630 Body spring 1700 bending frames 1800 Body carrier role 1900 leg support component 2000 first carrier unit 2100 first hip support component 2110 first hip support body 2120 first support arm 2130 Lumbar support shaft 2140 Separation prevention body 2141 Prevention hole 2150 Separation prevention cover 2160 first spring 2200 first back support component 2210 first back support frame 2211 first lordosis protrusion hole 2220 first back support body 2221 second lordosis protrusion hole 2300 first elastic support component 2310 first wave for elastic wearing 2320 first body for elastic wearing 2330 first elastic spring 2340 first roll for elastic carrying 3000 second carrier unit 3100 second hip support component 3110 second hip support body 3111 Recording groove 3120 second hip support frame 3121 first coupling element 3122 Motion guide hole 3123 second coupling element 3200 second back support component 3210 second back support frame 3211 Frame connecting link 3212 first hole 3213 second hole 3214 Sliding guide hole 3220 Headrest 3300 Stop component 3310 Stop component body 3320 Stop component shaft 3330 Stop component spring 3340 Movement block 3350 Stop component roller 4000 lumbar support component 4100 Lumbar support 4200 lumbar support 4300 lumbar connecting element 4310 Gliedloch 5000 lever component 5100 first lever 5200 second lever 5300 third lever

[0111] The embodiments of the present disclosure can provide a chair whose position angle is automatically adjusted by moving in response to a movement of a user from a case in which the user is performing intensive work to an angle in which the user can lie down and rest.

Claims

[1] Chair comprising the following: a chair body that has a basic frame; a first support component, which is provided on the base frame and configured to move in response to a user's movement while supporting the user's hips and back; and a second support component, which is provided on the base frame and configured to Wearing the first support component and Moving in coordination with a back support body of the first support component when the first support component is moved, wherein the second support component supports the rolling of a hip support body of the first support component and elastically supports the back support body of the first support component. [2] Chair according to claim 1, wherein the first support component comprises: the hip support body, which is movably provided on the base frame and is configured to support the hips of a user; the back support body, which is connected to the hip support body and supported by the second support component while carrying the back of a user; and a rotation guide element that is rotatably coupled to the back support body and is configured to guide a rotation of the first support component by guiding it through a guide arm provided on the second support component. [3] Chair according to claim 1, wherein the second support component comprises: a base support body that carries the back support body; a connecting plate having one side coupled to the base frame and the other side connected to the base support body; a guide arm that is provided on the connecting plate and configured to guide a movement of the back support body; and a first elastic support component, which is provided on the base support body and is configured to elastically support the back support body. [4] Chair according to claim 1, wherein the chair body further comprises: a leg support component that is movably provided on the base frame and configured to support the legs of a user; and a center of gravity displacement component that is provided on the second support component and is configured to control a movement of a center of gravity of the first support component. [5] Chair comprising the following: a chair body comprising a base frame and a base support arm provided on the base frame; a first support component that is spaced apart from the base frame and configured to move in response to a user's movement while supporting the user's hips and back; and a second support component, which is positioned between the base frame and the first support component and is configured to Carrying the first support component, and Moving in coordination with a back support body of the first support component when the first support component moves, whereupon, when the back support body and a base support body of the second support component tilt backwards, the first support component and the second support component move forwards. [6] Chair according to claim 5, wherein the chair body further comprises: a base roller which is rotatably mounted on the base support arm; and at least one base support roller, which is rotatably provided and configured on the base frame to support a connecting plate of the second support component, and wherein the second support component further includes a roller element which is provided on the base support body, is connected to the base roller and is configured to prevent the base roller from separating from the base support body. [7] Chair according to claim 1 or 5, further comprising a lumbar support provided on the back support body and configured to support the back of a user, wherein the lumbar support prevents an adverse effect on the user's back by moving backward when the back support body tilts backward. [8] Chair comprising the following: a chair body that has a basic frame; a first support unit, which is positioned on the base frame and configured to support the hips and back of a user; and a second support unit, which is provided on the base frame and configured to support the first support unit, as the first support unit tilts backward, an area of ​​the second support unit, which supports the hips of a user, moves forward. [9] Chair according to claim 8, wherein the first support unit comprises: a first hip support component, which is located on an upper section of the base and is configured to support an area of ​​the second support unit that supports the hips of a user; a first back support component that is connected to the first hip support component and configured to support the back of a user; and a first elastic support component, which is provided and configured on the first back support component, to be elastically supported by the second support unit in an area corresponding to the first back support component when the first back support component tilts backwards. [10] Chair according to claim 9, wherein the second support unit comprises: a second hip support component, which is movably supported by the base frame and coupled to the first hip support component; a second back support component, which is rotatably coupled to the chair body and connected to the second hip support component; and a stop component that is provided and configured on the second hip support component to limit movement of the second hip support component. [11] Chair according to claim 10, wherein the second hip support component comprises: a second hip support body, an upper section of which is detachably coupled to a first hip support body of the first hip support component; and a second hip support frame, which is movably coupled to the base frame in a front-back direction and is detachably coupled to the second hip support body, wherein the chair body further includes an elastic body support component which is provided on the base frame and elastically supports a movement of the second hip support frame. [12] Chair according to claim 8, further comprising a lumbar support component provided on a first back support component of the first support unit and configured to support the lumbar region of a user.

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