WO2009131360A2

WO2009131360A2 - Chair for correcting posture

Info

Publication number: WO2009131360A2
Application number: PCT/KR2009/002079
Authority: WO
Inventors: 박창준
Original assignee: Park Chang Joon
Priority date: 2008-04-21
Filing date: 2009-04-21
Publication date: 2009-10-29
Also published as: WO2009131360A3

Abstract

Disclosed is a chair for correcting posture to enable a user to conveniently sit in the correct posture. The chair for correcting posture comprises: a main seat which is installed at the upper part of a seat support to support the user’s buttocks; a movable seat which is installed in front of the upper part of the main seat to support the user’s femur and permits a seesaw movement around a pivot connected to the main seat along a longitudinal direction; and a backrest which is installed at the rear end of the seat support to support the user’s back. Also, the chair comprises: an axis which is installed in the center of the upper part of the main seat along a lateral direction; a left movable seat which is installed at the upper front left side of the main seat to support the user’s left femur, wherein the rear end of the left movable seat is connected to the axis in order to pivot around the axis; a right movable seat which is installed at the upper front right side of the main seat to support the user’s right femur, wherein the rear end of the right movable seat is connected to the axis in order to pivot around the axis; and the backrest which is installed at the rear end of the seat support to support the user’s back.

Description

Posture chair

The present invention relates to a chair, and more particularly, to a posture-correcting chair in which the mobility of the legs is improved so that a seated person can always sit comfortably in a correct posture.

The spine of a sitting person is under greater pressure than the standing person. For a long time, a person who works in a chair feels pain in his lower back and neck because his back is bent and his neck is inclined forward. If the seated person's sitting position is incorrect, degenerative changes in the spine may occur, causing disc herniation, commonly referred to as 'Disk disease'.

In order for the seated person to sit on the chair in a correct position, a chair suitable for the body type must be selected. The seated person's seating position should be placed deep in the back of the seat with the back of the seat so that the back is supported by the backrest. Also, keep your back straight and at a right angle so your head does not lean forward. Your knees should be as wide as your shoulders and your feet should be slightly wider than your knees.

The inventor has invented and filed a chair of PCT International Patent Application Publication No. WO2007 / 139365. The chair of this patent document is a pair of side plates mounted parallel to each other and rotatably mounted between the side plates and their height from front to back of the side plates to move the seat's buttocks backwards. Is composed of a plurality of rollers mounted progressively lower and backrests mounted on the rear of the side plates.

Therefore, while the seated buttocks are supported by rolling rollers, the back of the seat is naturally supported by the weight, and the back and the waist are stably supported by the backrest, so that the seated person can always sit in a correct posture.

However, all the prior art chairs including the chairs of the patent document as described above have a problem in that they cannot stably support both legs whose position and posture change from time to time according to the behavior of the seated person. In addition, even if the seated person is sitting in a correct posture on the chair, if you keep the same posture there is a disadvantage that the pelvis and spine follow. In particular, a load is applied to the pelvis and spine every time the seated person moves his leg, and muscle stress is increased, causing pain.

On the other hand, a pair of armrests supporting the seated arm is mounted on both sides of the seat. However, the structure that the seated person puts on the upper surface of the armrests with the palms facing down and the back of the hands facing up does not consider the orthopedic neutral position at all, causing pain in the shoulder and wrist joints. have. The orthopedic neutral position is an ideal position where the carpal joint is not internally rotated and pronation, that is, the palm is facing inward of the body.

The present invention has been made in order to solve the various problems of the prior art as described above, the object of the present invention is to improve the mobility of the legs by a structure that stably supports the thighs of the seated person moving in a sitting position, It is to provide a posture correction chair that can maintain a comfortable posture.

Another object of the present invention is to provide a posture correction chair that can correct the posture of the seated person comfortably.

Still another object of the present invention is to provide a posture correction chair capable of stably supporting the side and back of the seated person in the left and right directions to correct the posture of the neck.

Still another object of the present invention is to provide a posture correction chair which allows the forearm of the seated person supported by the armrests to be naturally placed in an orthopedic neutral position.

Features of the present invention for achieving the above object, the seat support; A main seat installed on the seat support to support the buttocks of the seated person; An exercise seat installed at the upper front of the main seat to support the thighs of the seated occupants and the seesaw movement about a pivot connected to the main seat in a longitudinal direction; At the rear end of the seat support is a posture correction chair consisting of a backrest is installed to support the back of the seated person.

Another feature of the invention, the seat support; A main seat installed on the seat support to support the buttocks of the seated person; An axis mounted along the width direction in the upper center of the main seat; A left movement seat installed at the upper front left side of the main seat so as to support the left thigh of the seated seat, and having a rear end connected to the shaft to rotate about the shaft; A right movement seat installed at the upper front right side of the main seat to support the right thigh of the seated seat, and having a rear end connected to the shaft to rotate about the shaft; At the rear end of the seat support is a posture correction chair consisting of a backrest is installed to support the back of the seated person.

1 is a perspective view showing the configuration of a first embodiment of a posture correction chair according to the present invention;

Figure 2 is a side view showing a posture correction chair of a first embodiment according to the present invention,

Figure 3 is a perspective view showing the configuration of the main seat and the exercise seat in the posture correction chair of the first embodiment according to the present invention,

Figure 4 is a perspective view separately showing the configuration of the main seat and the exercise seat in the posture correction chair of the first embodiment according to the present invention,

Figure 5 is a side view showing the configuration of the main seat and the exercise seat in the posture correction chair of the first embodiment according to the present invention,

Figure 6 is a front view showing the configuration of the main seat and the exercise seat in the posture correction chair of the first embodiment according to the present invention,

Figure 7 is a front view showing to explain the operation of the exercise seat in the posture correction chair of the first embodiment according to the present invention,

8 is a rear view showing the configuration of the headrest in the posture correcting chair of the first embodiment of the present invention;

Figure 9 is a perspective view showing the configuration of the armrest in the posture correction chair of the first embodiment of the present invention,

10 is a perspective view showing the configuration of another embodiment of the armrest in the posture correction chair of the first embodiment of the present invention.

11 is a perspective view showing the configuration of a second embodiment of a posture correction chair according to the present invention;

12 is a side view showing a posture correcting chair in a second embodiment according to the present invention;

Figure 13 is a perspective view showing the configuration of the main seat, the left movement seat and the right movement seat in the posture correction chair of the second embodiment according to the present invention,

14 is a perspective view separately showing the configuration of the main seat, the left exercise seat and the right exercise seat in the posture correction chair of the second embodiment according to the present invention;

Figure 15 is a side view showing the configuration of the main seat and the right movement seat in the posture correction chair of the second embodiment according to the present invention,

Figure 16 is a side view showing to explain the operation of the main seat and the right movement seat in the posture correction chair of the second embodiment according to the present invention,

17 is a front view showing the configuration of the main seat, the left exercise seat and the right exercise seat in the posture correcting chair of the second embodiment according to the present invention;

18 is a front view illustrating the operation of the left movement seat and the right exercise seat in the posture correcting chair according to the second embodiment of the present invention.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments associated with the accompanying drawings.

Hereinafter, preferred embodiments of the posture correction chair according to the present invention will be described in detail with reference to the accompanying drawings.

First, Figures 1 to 7 show the configuration of the first embodiment of the posture correction chair according to the present invention. 1 and 2, the posture correction chair of the first embodiment is composed of a seat support (Seat Support: 10), the main seat (Main Seat: 20), the exercise seat (30) and the backrest (50). . The seat support 10 is composed of a base 12 and a leg 14 connected to the lower surface of the base 12. The leg 14 is configured to be movable by the plurality of wheels 16.

1 to 5, the main seat 20 is installed on the upper rear of the base 12 so as to support the buttocks of the seated person. The main seat 20 is composed of a bottom plate 22, a pair of

side plates

24, 26 and a plurality of first rollers 28. The bottom plate 22 of the main seat 20 is mounted on the upper surface of the base 12. The seat support 10 may be configured as a leg frame of various structures and shapes that are fixed to the bottom plate 22 of the main seat 20 as necessary.

As shown in FIG. 4 and FIG. 5, the

side plates

24 and 26 are arranged parallel to each other along the longitudinal direction on both sides of the upper surface of the base plate 22. The

side plates

24, 26 are configured to be about 2/3 of the length from the rear end of the base plate 22 to the total length of the base plate 22. A plurality of shaft holes 24a and 26a facing each other are formed in the inner surfaces of the

side plates

24 and 26. Upper portions of the shaft holes 24a and 26a are open.

Covers

24b and 26b are mounted on the upper surfaces of the

side plates

24 and 26 to cover the upper portions of the shaft holes 24a and 26a.

The first rollers 28 are mounted in parallel along the width direction of the main seat 10 so as to rotate between the

side plates

24 and 26. The first rollers 28 are composed of a shaft 28a and a cylindrical body 28b supporting the buttocks of the seated person. Both ends of the shaft 28a are fitted to be rotatable in the shaft holes 24a and 26a of the

side plates

24 and 26. Between the shaft holes 24a and 26a and the shaft 28a, the bearing 28c which supports the rotation of the shaft 28a is respectively mounted. The cylindrical body 28b is attached to the outer surface of the shaft 28a located between the

side plates

24 and 26. As shown in FIG. The cylindrical body 28b may be made of a flexible material, for example, urethane, silicone rubber, or soft plastic. In the embodiment of the present invention, the shaft 28a of the first rollers 28 may be fixed to the

side plates

24, 26, and the cylindrical body 28b may be mounted to rotate on the shaft 28a. Can be.

Referring back to FIGS. 1 to 5, the exercise seat 30 is installed to support the thigh of the seated person in the upper front of the base plate 22 and to perform a seesaw motion in the vertical direction. The exercise seat 30 includes a pivot 32, a seesaw plate 34, a pair of

side plates

36 and 38 and a plurality of second rollers 40.

The pivot 32 is arrange | positioned along the longitudinal direction in the center of the upper surface of the base plate 22. As shown in FIG. The rear end of the pivot 32 is fixed to a boss 32a attached to the center of the upper surface of the bottom plate 22. The seesaw plate 34 is connected to the center of the upper surface so as to rotate by the support of the bearing 32b at the tip of the pivot 32. Both sides of the bottom surface of the seesaw plate 34 are supported by and restrained on the top surface of the bottom plate 22. Therefore, the seesaw plate 34 is rotated about the pivot 32 when viewed from the front of the chair 10 to seesaw movement in the vertical direction. In the embodiment of the present invention, the boss 32a may be configured as a bearing for supporting the rotation of the pivot 32, and the tip of the pivot 32 may be fixed to the seesaw plate 34.

The

side plates

36 and 38 are arranged parallel to each other along the longitudinal direction on both sides of the upper surface of the seesaw plate 34. The

side plates

36 and 38 have a plurality of

shaft holes

36a and 38a which are formed to face each other. The second rolls 40 are mounted in parallel with the first rolls 28 so as to rotate between the

side plates

36, 38. The second rollers 40 are composed of a shaft 40a and a cylindrical body 40b supporting the thigh of the seated person. The cylindrical body 40b is mounted on the outer surface of the shaft 40a positioned between the

side plates

36 and 38. Both ends of the shaft 40a are fitted to be rotatable in the shaft holes 36a and 38a of the

side plates

36 and 38. Between the shaft holes 36a and 38a and the shaft 40a, the bearing 40c which supports the rotation of the shaft 40a is respectively mounted.

2 and 5, the first rollers 28 and the second rollers 40 are gradually lower in height from the front to the rear to move the seat of the occupant to the rear by rolling motion. It is equipped to lose. One or more third rollers 42 are additionally mounted between the

side plates

36 and 38 so as to be located in front of the uppermost roller 40-1 having the highest height among the second rollers 40. .

The shaft 42a, the cylinder 42b, and the bearing 42c of the third roller 42 are the same as the shaft 40a, the cylinder 40b, and the bearing 40c of the second rollers 40. Consists of. 1 to 5 show that one third roller 42 is mounted. When a plurality of third rollers 42 are mounted, the plurality of third rollers may be mounted such that their height gradually decreases toward the front of the upper roller 40-1. 1, 3 and 4, the

cylinders

28b, 40b, 42b of each of the first, second and

third rollers

28, 40, 42 can comfortably support the buttocks and thighs of the seated person. Although it is shown that it is formed so as to have a bend, it is illustrative and the

cylindrical bodies

28b, 40b, 42b may be made to have the same diameter or may be changed into a plurality of balls (Ball).

2 and 4 to 6, a plurality of elastic members 44 are mounted between the bottom plate 22 of the main seat 20 and the seesaw plate 34 of the exercise seat 30. The elastic members 44 impart an elastic force that biases the exercise seat 30 upward so that the exercise seat 30 maintains balance. The elastic members 44 may be composed of a compression coil spring, a leaf spring, or the like.

1 and 2, the backrest 50 is divided into a left backrest 52 and a right backrest 54 so as to stably wrap and support the back of the seated person. The left and

right backrests

52 and 54 are mounted in front of the backrest support 60. The back support 60 is connected to the rear end of the base 12. The left and

right backrests

52 and 54 may be configured to be rotated in the left and right or up and down directions to adjust the angle of supporting the seat of the seated person, and may be configured to move up and down with respect to the backrest support 60. In addition, the left and

right backrest

52, 54 may be mounted to the backrest support 60 to adjust the width to each other. Although the backrest 50 is shown and described as being divided into the left backrest 52 and the right backrest 54, the backrest 50 may be composed of a single member supporting the back of the seated person. In this case, the backrest of the single member is connected to the rear end of the base 12, and the backrest support 60 can be deleted.

The posture correcting chair of the first embodiment according to the present invention includes a cover 70 covering the first, second and

third rollers

28, 40, 42. The cover 70 includes a mesh belt 72, an elastic band 74 having an elastic force, and an adhesive cloth 76 (trade name: Velcro).

The mesh belt 72 has one end and the other end and is configured to wrap the first, second and

third rollers

28, 40, and 42. One end of the elastic band 74 is connected to one end of the mesh belt 72. The adhesive cloth 76 is composed of a plurality of hooks 76a and a plurality of loops 76b that attach and detach the hooks 76a. The hooks 76a are connected to the other end of the mesh belt 72, and the loops 76b are connected to the other end of the elastic band 74. When the hooks 76a of the adhesive cloth 76 are attached to the loops 76b, the mesh belt 72 surrounds the first, second and

third rolls

28, 40, 42.

1, 2 and 8, a head restraint (Headrest 80) for supporting the head (H) of the seated person is mounted on the upper back support (60). The head restraint 80 is composed of a left head restraint 82 and a right head rest 84 so as to stably support the occipital head and temporal head of the seated person. Each of the left and

right headrests

82 and 84 is composed of

support members

82a and 84a, a flexible joint 82b and 84b and a

support bar

82c and 84c.

The supporting

members

82a and 84a are disposed above the back support 60 so as to support the occipital head and the temporal head of the seated person in the left and right directions. The

support members

82a and 84a may be configured as cushion members to comfortably support the head of the seated person. One end of the

flexible joints

82b and 84b is fixed to the

support members

82a and 84a. The

flexible joints

82b and 84b are made of a material having elastic restoring force with respect to external force, such as a spring bar, a spring plate, rubber, so that the positions of the

support members

82a and 84a can be varied. It may be composed of synthetic rubber. One end of the support bars 82c and 84c is connected to the other end of the

flexible joints

82b and 84b, and the other end is fixed to the upper end of the back support 60. In the embodiment of the present invention, the support bars 82c and 84c may be mounted to adjust the height of the

support members

82a and 84a with respect to the backrest support 60. In addition, the left and

right head restraints

82 and 84 may be connected to the backrest 50.

1, 2 and 9, a pair of armrests 90 for supporting the arm (A) of the seated person to the longitudinal direction of the main seat 20 on both sides of the base 12 of the seat support (10) It is mounted accordingly. The armrests 90 are curved in an ergonomic shape to support the forearm of the seated person, ie, comfortably and stably from the wrist to the elbow. Grooves 90a are formed along the longitudinal direction on the upper surface of the armrests 90 so as to comfortably and stably position the arm A of the seated person. Each of the armrests 90 is connected to both sides of the base 12 by a support frame 92. In front of the upper surface of the armrests 90 is mounted a projection member 94 for guiding the forearm of the seated person in the orthopedic neutral position. The screw 94a is fixed to one side of the protruding member 94, and the screw 94a is fastened to the armrests 90 to be detachable. 1, 2 and 9 is shown by way of example the protrusion member 94 is composed of a sphere.

On the other hand, in the chair for posture correction of the first embodiment according to the present invention, the height adjustment device that can adjust the height and angle of the main seat 20 between the seat support 10 and the main seat 20 according to the body shape of the seated person , An angle adjusting device may be provided. In addition, the height and width of the armrests 90 can be configured to be adjustable by a known height adjustment device, width adjustment device. The head restraint 80 and the armrest 90 may be deleted as necessary.

Now, the operation of the posture correcting chair of the first embodiment according to the present invention having such a configuration will be described.

1 and 2, when the seated person is seated in the main seat 20, the hip of the seated person is supported by the first rollers 28 and the seated thigh is supported by the second rollers 40. do. The buttocks of the seat occupant are slid backwards by riding the first rollers 28 and the second rollers 40 which are gradually lowered toward the rear by the weight. At this time, the movement of the buttocks, the first and

second rollers

28 and 40 are made smoothly and smoothly by the rolling motion. The rolling motion of the first and

second rollers

28 and 40 may give a massage effect to the buttocks and hips of the seated person. In addition, natural ventilation is provided between the first and

second rollers

28 and 40 supporting the buttocks of the seater, thereby preventing the seater's skin disease and improving health.

The seated back of the seated person touches the left and

right backrests

52 and 54 by naturally moving the hips of the seated person from the front of the main seat 20 to the back. The left and

right backrests

52 and 54 are supported stably while wrapping the seat back and waist of the seated person, and also straighten the seated person's waist. The left and

right head restraints

82 and 84 support the occupant's back head from side to side stably and comfortably. Therefore, the seated person can always sit in the correct position in the chair of the present invention.

When the first, second and

third rollers

28, 40, 42 are wrapped in the cover 70, natural ventilation is achieved through the mesh belt 72 of the cover 70. The mesh belt 72 is tensioned by the elastic force of the elastic band 74 to cover the valleys formed between the first, second and

third rollers

28, 40, 42. The buttocks and thighs of the seated person are supported by the tensioned mesh belt 72. Therefore, as the hip and thigh muscles sag, the phenomenon of being caught in the bone between the first, second and

third rollers

28, 40 and 42 is prevented, thereby improving the seating comfort of the seated person.

6 and 7, the left and right thighs of the seated person are supported on the left and right sides of the second rolls 40 with respect to the center of the second rolls 40, respectively. When the seated person moves or moves the left and right thighs, the posture or the center of gravity of the left and right thighs supported by the second treads 40 is changed, and the left and right sides of the second treads 40 are moved by the left and right thighs. The load applied is varied. The seesaw plate 34 is rotated about the pivot 32 in accordance with the fluctuation of the load acting on the left and right sides of the second rollers 40 to seesaw.

The movement of the left and right thighs is comfortably supported by the second rollers 40 that are moved together with the seesaw plate 34 so that the seater's pelvis and spine are correctly corrected, and the pressure applied to the pelvis and spine is reduced. In addition, due to the incorrect posture of the seated person can be alleviated the muscle stress imparted to the muscles can reduce fatigue, increase concentration.

1, 2 and 9, when the seated person places the arm A on the armrests 90, the forearm from the wrist to the elbow is comfortably and stably supported in the groove 90a of the armrests 90. do. The palm of the seated person is supported by the protruding member 94 so that the forearm does not face the upper surface of the armrests 90 so that the orthopedic neutral position, ie, the back of the hand, maintains an ideal posture parallel to the forearm. Therefore, the extended position of the internal organs is prevented to prevent pain, carpal tunnel syndrome, and humeral trauma, also called tennis elbow.

10 shows another embodiment of the protruding member that can maintain the forearm of the seated person in an orthopedic neutral position. Referring to FIG. 10, the protrusion member 96 is integrally formed with the armrests 90 so as to support the palm of the seated person in front of the upper surface of the armrests 90. The integrated structure of the armrests 90 and the protrusion member 96 may be configured by injection molding the plastic material.

1, 2 and 8, the

support members

82a and 84a of the left and

right head restraints

82 and 84 support the seater's head H from side to side stably and comfortably. As the seat head H is supported by the

support members

82a and 84a, the

support members

82a and 84a are subjected to an external force. The

flexible joints

82b and 84b are elastically deformed by the external force applied to the

support members

82a and 84a. The positions of the supporting

members

82a and 84a are varied by the elastic deformation of the

flexible joints

82b and 84b, thereby stably supporting the head and the back of the seated person. Since the weight of the head H is distributed and supported by the supporting

members

82a and 84b, the weight concentrated on the cervical spine of the seater is reduced, and the muscle stress applied to the neck muscles is alleviated, so that even when the seated person is sitting for a long time, the fatigue is significantly reduced. do.

On the other hand, when the head H of the seated person is biased in one direction, the supporting

members

82a and 84a, which are returned to their original positions by the elastic restoring force of the

flexible joints

82b and 84b, adjust the posture of the seated head H and the neck. Will be corrected. According to the posture correction of the head (H) and neck, the seated person can always sit in the correct posture in the posture correction chair according to the present invention.

11 to 18 show a second embodiment of the posture correcting chair according to the present invention. 11 and 12, the posture correcting chair of the second embodiment is the seat support 110, the main seat 120, the shaft 130, the left seating seat 140, the right seating seat 150, elastic The member 160, the backrest 170, the backrest support 180, the cover 190, the headrest 200, and the armrest 210 are configured. The seat support 110, the backrest 170, the back support 180, the cover 190, the head rest 200, and the armrest 210 of the posture correcting chair of the second embodiment are the seat support 10 of the first embodiment. ), Backrest 50, backrest support 60, head restraint 80, armrests 90 and the same basic configuration and operation, so detailed description thereof will be omitted.

The seat support 110 is composed of a base 112, a leg 114 and a plurality of wheels (116). The main seat 120 is installed to support the buttocks of the seated person at the upper rear of the base 112. The main seat 120 includes a bottom plate 122, a pair of

side plates

124 and 126, and a plurality of first rollers 128. The shaft 130 is mounted in the upper center of the main seat 120 so as to rotate along the width direction, and the first rollers 128 in front of the first rollers 128 of the main seat 120. It is arranged parallel to.

11 to 15, each of the left movement seat 140 and the right movement seat 150 is mounted on the front left and right sides of the main seat 120 so as to support the left and right thighs of the seated person. The left movement seat 140 includes a pair of

levers

142 and 144 and a plurality of second rollers 146. The pair of

levers

142 and 144 are arranged in parallel with each other at intervals on the front left side with respect to the center of the main seat 120. The rear ends of the

levers

142 and 144 are connected to the shaft 130 so as to rotate about the shaft 130. The

levers

142 and 144 have a plurality of

shaft holes

142a and 144a which are formed to face each other. The plurality of second rollers 146 are rotatably mounted between the

levers

142 and 144. The second rollers 146 are composed of a shaft 146a and a cylindrical body 146b. Both ends of the shaft 146a are fitted to rotate in the

shaft holes

142a and 144a of the

levers

142 and 144. The cylindrical body 146b is mounted on the outer surface of the shaft 146a located between the

levers

142 and 144.

The right movement seat 150 includes a pair of

levers

152 and 154 and a plurality of third rollers 156. The pair of

levers

152 and 154 are arranged in parallel with each other at intervals on the front right side with respect to the center of the main seat 120. The rear ends of the

levers

152, 154 are connected to the shaft 130 so as to rotate about the shaft 130. The

levers

152 and 154 have a plurality of

shaft holes

152a and 154a which are formed to face each other. The plurality of third rollers 156 are rotatably mounted between the

levers

152 and 154. The second rollers 146 and the third rollers 156 are arranged to be aligned with each other along the width direction of the main seat 120. The axis 156a and the cylindrical body 156b of the third rollers 156 are configured in the same manner as the axis 146a and the cylindrical body 146b of the second rollers 146. 14 to 16, the second roller 146 and the third roller 156 which are adjacent to the first rollers 128 among the second rollers 146 and the third rollers 156. While each

cylindrical body

146b, 156b is shown mounted on a shaft 130, these

cylindrical bodies

146b, 156b may be mounted on

shafts

146a, 156a.

As shown in FIGS. 12 and 15, the first rolls 128, the second rolls 146 and the third rolls 156 move the seated hip of the seat back by rolling motion. For this purpose, the height is gradually lowered from the front to the rear. The

levers

142 and 144 and the lever 152 are positioned in front of the top rollers 146-1 and 156-1 having the highest height among the second rollers 146 and the third rollers 156. One or more fourth rollers 148 and fifth rollers 158 are additionally mounted between the plurality of rollers 154. The fourth roller 148 and the fifth roller 158 are aligned along the width direction of the main seat 120. A plurality of elastic members 160 are mounted between the bottom plate 122 and the first and levers 142, 144, 152 and 154 of the main seat 120.

The elastic members 160 impart an elastic force that biases the left and right movement seats 140 and 150 upward so that the left and right movement seats 140 and 150 maintain balance. The support pin (162) is coupled to the upper and lower portions of the elastic member 160 by the elastic force of the elastic member 160. The upper end of the support pin 162 stably supports the

levers

142 and 144 of the left movement seat 140 and the

levers

152 and 154 of the right movement seat 150, respectively. The cover 190 surrounds the first, second, third, fourth, and

fifth rolls

128, 146, 148, 156, and 158 to enhance seating comfort of the seated occupant. The cover 190 includes a mesh belt 192, an elastic band 194 having an elastic force, and an adhesive cloth 196. Adhesive cloth 196 is composed of a plurality of hooks (196a) and a plurality of loops (196b) that can attach and detach the hook (196a).

In the posture-correcting chair of the second embodiment having such a configuration, when the seated person sits in the main seat 120, the hip of the seated person is supported by the first rollers 128 of the main seat 120. In addition, the left and right lateral thighs of the seated person are supported by the second rollers 146 of the left movement seat 140 and the third rollers 156 of the right movement seat 150, respectively.

The hip of the seated person is slid backwards by riding the first, second and

third rollers

128, 146 and 156, which are gradually lowered by the weight. At this time, the movement of the buttocks, the first, second and third rollers (128, 146, 156) are made smoothly and smoothly by the cloud movement. Therefore, the buttocks of the seat occupant is located behind the main seat 120, and the seat of the seat is stably supported by the left and

right backrests

172 and 174 of the backrest 170 so that the waist is extended. The left and

right head restraints

82 and 84 of the head rest 200 support the seat head's back head stably and comfortably from side to side. Therefore, the seated person can always sit in the correct posture to the posture correction chair of the second embodiment according to the present invention.

15, 17 and 18, the posture or weight of the left and right thighs supported by the second roll 146 and the third roll 156 when the seated person moves or moves the left and right thighs The center is varied and the load applied to the second and

third rollers

146 and 156 is varied by the movement of the left and right thighs. The

levers

142 and 144 of the left movement seat 140 are rotated in the vertical direction about the shaft 130 according to the load variation, and the second rollers 146 comfortably support the movement of the left thigh. The

levers

152 and 154 of the right side movement seat 150 are rotated up and down about the shaft 130 according to the load variation, and the third rollers 156 comfortably support the movement of the right thigh.

In this way, the left and right thighs are comfortably supported by the second rollers 146 of the left movement seat 140 and the third roller 156 of the right movement seat 150 that are rotated in the vertical direction. The pelvis and spine are corrected correctly and the pressure exerted on the pelvis and spine is relieved. In addition, due to the incorrect posture of the seated person can be alleviated the muscle stress imparted to the muscles can increase the concentration.

The embodiments described above are merely to describe preferred embodiments of the present invention, the scope of the present invention is not limited to the described embodiments, those skilled in the art within the spirit and claims of the present invention It will be understood that various changes, modifications, or substitutions may be made thereto, and such embodiments are to be understood as being within the scope of the present invention.

As described above, according to the posture-correcting chair according to the present invention, the structure supporting the thigh of the seated person moving in a sitting position improves the mobility of the leg and stably supports the thigh so that the user can always maintain a comfortable posture. There is. In addition, by correcting the posture of the seated and comfortably to reduce the pressure applied to the pelvis and spine of the seated, there is an effect that the muscle stress applied to the muscles is alleviated to increase the concentration. The left and right head restraints support the occupant's temporal and posterior heads in the left and right directions to disperse the weight of the head and prevent concentration of load on the cervical spine, thereby greatly reducing the fatigue of the seated person. In addition, the adjustable position of the left and right head restraints can be adjusted to maintain the neck always in the right posture, and the forearm of the seated person supported by the armrests can naturally maintain the orthopedic neutral position.

Claims

A seat support;

A main seat installed on the seat support to support the buttocks of the seated person;

An exercise seat installed at an upper front of the main seat so as to support the thigh of the seated seat, and a seesaw movement centering around a pivot connected to the main seat in a longitudinal direction;

Posture correction chair consisting of a backrest is installed to support the back of the seated on the rear end of the seat support.
The method of claim 1, wherein the main seat,

A bottom plate mounted on an upper portion of the seat support;

A pair of side plates arranged parallel to each other along a longitudinal direction on both sides of an upper surface of the bottom plate;

A posture composed of a plurality of first rollers that are rotatably mounted between the side plates, the height of which is gradually lowered from the front of the side plates toward the rear to move the buttocks of the seat back. Orthodontic chair.
According to claim 1, The exercise seat,

A seesaw plate connected to the seesaw movement around the pivot;

A pair of side plates arranged parallel to each other along a longitudinal direction on both sides of an upper surface of the seesaw plate;

A posture chair comprising a plurality of second rollers that are mounted to rotate between the side plates.
The posture chair according to claim 1, further comprising a plurality of elastic members mounted between the main seat and the exercise seat to provide an elastic force for upwardly biasing the exercise seat.
The plurality of first rolls and the plurality of second rolls of claim 1, wherein each of the main seat and the exercise seat is mounted at a progressively lower height from the front to the rear to move the hip of the seated seat backward. And a third roller is further mounted so as to be positioned in front of the uppermost roller of the highest height among the second rollers, and surrounds the first rollers, the second rollers and the third roller. A posture correction chair further comprising a cover.
The method of claim 5, wherein the cover,

A mesh belt surrounding the first rollers, the second rollers and the third roller, and having one end and the other end;

An elastic band connected to one end of the mesh belt;

And an adhesive cloth having a plurality of hooks connected to the other end of the mesh belt and a plurality of loops connected to the elastic band and capable of attaching and detaching the hooks.
The chair for posture correction according to claim 1, wherein a left head restraint and a right head restraint are mounted on an upper part of the back support so as to support the occipital head and the temporal head of the seat.
According to claim 1, A pair of armrests are mounted along the longitudinal direction of the main seat so as to support the arm of the seater on both sides of the seat support, the forearm of the seater in front of the upper surface of the armrests of the armrests A posture-correcting chair equipped with a protruding member that supports the palm of the seated person so that the palm of the seated person is maintained in the orthopedic neutral position when supported on the upper surface.
A seat support;

A main seat installed on the seat support to support the buttocks of the seated person;

An axis mounted in a width direction in an upper center of the main seat;

A left movement seat installed at the upper front left side of the main seat to support the left thigh of the seated seat, and having a rear end connected to the shaft to rotate about the shaft;

A right movement seat installed at the upper front right side of the main seat to support the right thigh of the seated seat, and having a rear end connected to the shaft to rotate about the shaft;

Posture correction chair consisting of a backrest is installed to support the back of the seated on the rear end of the seat support.
The method of claim 9, wherein the main seat,

A bottom plate mounted on an upper portion of the seat support;

A pair of side plates arranged parallel to each other along a longitudinal direction on both sides of an upper surface of the bottom plate;

A posture composed of a plurality of first rollers that are rotatably mounted between the side plates, the height of which is gradually lowered from the front side of the side plates toward the rear side to move the buttocks of the seat back. Orthodontic chair.
10. The method of claim 9, wherein the left movement seat,

A pair of levers arranged in parallel with each other at intervals on the front left side with respect to the center of the main seat and connected to the shaft so that a rear end can rotate about the shaft;

A posture chair comprising a plurality of second rollers mounted to rotate between the levers.
The seat of claim 9, wherein the right seat is

A pair of levers arranged in parallel with each other at intervals on the front right side with respect to the center of the main seat and connected to the shaft so that a rear end thereof can rotate about the shaft;

An orthodontic chair comprising a plurality of third rollers mounted to rotate between the levers.
10. The apparatus of claim 9, wherein a plurality of seats are provided to impart an elastic force for upwardly biasing the left and right movement seats between the main seat and the left movement seat, and the main seat and the right movement seat, respectively. Posture correction chair further comprising elastic members.
The plurality of first rollers of claim 13, wherein each of the main seat, the left movement seat, and the right movement seat is gradually lowered in height from the front to the rear to move the hip of the seat back. And a plurality of second rollers and a plurality of third rollers, wherein the second rollers and the third rollers are aligned along the width direction of the main seat, and the first rollers and the second rollers. The posture correction chair further comprising a cover surrounding the girdles and the third roller.
10. The chair for posture correction according to claim 9, wherein a left head restraint and a right head restraint are mounted on the upper back support so as to support the occipital head and the temporal head of the seat.
10. The method of claim 9, wherein a pair of armrests are mounted along the longitudinal direction of the main seat so as to support the arm of the seater on both sides of the seat support, the forearm of the seater in front of the upper surface of the armrests of the armrests A posture-correcting chair equipped with a protruding member that supports the palm of the seated occupant so as to remain in the orthopedic neutral position when supported on the upper surface.