KR200460815Y1 - Multi Functional Chair - Google Patents

Abstract

The functional chair according to the present invention, in a chair including a top plate and a leg, includes a back plate and a folding portion for folding the back plate based on one side of the top plate, and the back plate is folded when the back plate is folded. A folding leg for supporting the back plate, a first support for connecting each of the folding legs in a horizontal direction, and a second support for connecting the first support and the back plate in a vertical direction between each of the folding legs; Support portion comprising; one end is pivotally coupled to a portion where the second support is connected to the backrest plate and the other end is provided with a reference bar having a locking bar for seating the user's foot and one end pivoting to one side of the backrest plate. Capable of being coupled and the other end is connected to the lower end of the second support via a connecting portion, but the length is elastically adjustable And a lower leg movement part including a first connecting rod and one end connected to the engaging bar portion and the other end connected to the lower end of the second support via a connecting portion, the second connecting rod being elastically adjustable. It is characterized by. According to the functional chair according to the present invention, the user can stimulate the muscles of various parts of the body by allowing the user to perform various movements in a lying position as well as a sitting posture while the back plate is folded to be horizontal as the top plate. Can be.

Description

Functional chair {Multi Functional Chair}

The present invention relates to a functional chair, and more particularly, to a chair consisting of a back plate, a top plate, and a leg, the back plate is folded in various states such as a sitting position as well as a lying posture in a state in which the back plate is horizontally aligned with the top plate. The present invention relates to a functional chair capable of exercising to stimulate muscles of various parts of the body.

In general, a chair is used as a tool for a person to sit. Modern people use a chair in various situations such as an examination, a work life, and a leisure life.

If you are sitting in a chair for a long time or using a computer or learning, it is difficult to maintain a correct posture at all times, so it is common to sit in a sloppy posture or one side biased position. The less movement of the muscles to tighten the muscles not only makes the whole body as well as slow digestion, the concentration of the upper body loads on the hips and lower back because the blood circulation is not smooth, adversely affecting health.

In order to solve this problem, it can be seen that Korean Patent Publication No. 10-2004-0090881 discloses a multipurpose fitness chair.

The above technology is provided with the upper arm strength member, arm strength member, hand grip member, etc. in the chair to solve the problems such as blood circulation and lack of exercise by making it easy to exercise without spending a separate time in the sitting position It has the advantage of being able to exercise only in a sitting posture, but it is limited to the area where it can be exercised. There is this.

In addition, Korea Utility Model No. 20-2009-0002329 'Car fitness chair' is composed of a back seat, seat plate, foot bar, connecting rod, sewing rod, fixing screw, and usually, the connecting rod is placed under the seat plate, To do this, fold the back of the car chair back, loosen the fixing screw under the seat plate, and then pull out the footrest rod and connecting rod from the bag and tighten the fixing screw to fix the sit-up.

Although the above technique can be exercised while the back is tilted back, the type of exercise is limited and the parts that can be stimulated only by the sit-up exercise can also be said to have a great effect on the user's exercise. There is a problem that can not be.

Therefore, there is a need to provide a new and advanced functional chair that can improve the problems described above.

The present invention has been devised to overcome the problems of the technology, in the chair consisting of the back plate and the top plate and legs, the back plate is folded in a state as laid down as well as the top plate in a state where the user sits down as well as lying down The main purpose is to be able to exercise lower body.

Another object of the present invention is to allow the various components to be stably arranged and accommodated when the back plate is erected.

Still another object of the present invention is to provide a fixed portion on the reference stage of the lower extremity movement portion to easily adjust the length of the reference stage.

A further object of the present invention, the back plate is folded so that the user can perform the sit-up exercise in a lying posture in a state made to be horizontal, such as the top plate.

A further object of the present invention is to allow a user to exercise upper body, including chest exercise, using the functional chair according to the present invention.

In order to achieve the above object, the functional chair according to the present invention, in the chair comprising a top plate and a leg, a hinge to the back plate and the back plate connected to one side of the top plate is rotated based on one side of the top plate And a foldable portion including a stopper to allow the back plate to be fixed at an angle, wherein the back plate is formed at both ends of the back plate to rotate the back plate when the back plate is horizontal to the top plate. A support part including a folding leg for supporting, a first support for connecting each of the folding legs in a horizontal direction, and a second support for connecting the first support and the backrest plate in a vertical direction between the folding legs; One end is rotatably coupled to a portion where the second support is connected to the back plate At the end, the base having a locking bar for seating the user's foot and one end thereof are rotatably coupled to one side of the backrest plate, and the other end is connected to the lower end of the second support via a connecting portion, but the length is elastically adjusted. Possible first connecting rod and one end is connected to the engaging bar portion and the other end is connected to the lower end of the second support including a connecting portion via a connecting portion, including a lower leg movement portion made of elastically adjustable second connecting rod It features.

In addition, the connecting portion is characterized in that consisting of a ring formed to surround a portion of the outer peripheral surface of the second support in the state in which the first and second connecting rods are coupled.

In addition, the second support is characterized in that it comprises a receiving groove that one side of the outer peripheral surface is extended in the longitudinal direction to provide a space in which the first and second connecting rods can be accommodated when the back plate is erected.

In addition, the reference stage is formed so that the small diameter pipe is inserted into the large diameter pipe, a plurality of through-holes are formed in the small diameter pipe, the chimney-shaped insertion tube is formed in both ends of the large diameter pipe, The insert tube is formed in an open cylindrical shape, the upper part of which is inserted into the insertion tube and the vertical stand extending vertically from the bottom surface center portion of the fixing tube to the upper portion of the insertion tube, can be rotated from the extending end of the vertical stand A fixing portion formed of a first spring extending to be bent so as to be bent so that one side is in contact with the upper opening of the insertion tube, and one end of which is coupled to the bottom surface of the fixed tube and extends to surround the vertical stand. It is characterized by including.

In addition, the top plate includes a pair of guide tubes and crossbars each of which is coupled to each other via a through-hole formed on one side of the top plate and a crossbar vertically extending from both ends of the crossbar, each of the top plate It is characterized in that it further comprises a whole body movement portion comprising a foot fixing bar which is inserted into the guide tube through the through-hole formed in and drawn out and drawn out and a fixing means for fixing the foot fixing bar in a predetermined length drawn out state; It is done.

In addition, the legs formed on the opposite side of the surface connected to the back plate in the upper plate is further formed with a third support connecting the two legs, the third support is each in the 'V' shape in the center portion An extension end portion is extended to include a movable base formed to abut the opposite side of the upper plate, the leg is formed with the third support and one end is connected to both legs formed with the third support, respectively, It is characterized in that the other end further comprises a second spring connected to each of the movable table.

In addition, the upper plate is formed on both sides of the upper plate is characterized in that the chest movement portion is further formed to allow the user to exercise the upper body by elastically flowing from side to side.

According to the functional chair according to the present invention,

1) The user can exercise while completely lying down to effectively solve various health problems caused by sitting for a long time,

2) by using the lower extremity and thigh exercise to exercise the lower body strength,

3) Sit-ups can strengthen abdominal muscles,

4) Can develop various upper body muscles including chest muscles.

1 is a perspective view showing the configuration of a functional chair according to the present invention.
Figure 2 is a perspective view showing an embodiment of a functional chair according to the present invention.
Figure 3 is a perspective view of the lower limb movement unit according to the present invention.
Figure 4 is a perspective view showing the configuration of the whole body movement unit according to the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings are not drawn to scale and wherein like reference numerals in the various drawings refer to like elements.

1 is a perspective view showing the configuration of a functional chair according to the present invention, Figure 2 is a perspective view showing an embodiment of a functional chair according to the present invention.

As can be seen from Figures 1 and 2, the functional chair according to the present invention is a chair including a top plate 100 and a leg 10, the back plate 200 connected to one side of the top plate 100 is folded By providing a flat space with the top plate 100 so that the user can perform a variety of exercises in the lying position as well as the sitting position.

These functional chairs are a variety of exercise equipment that can stimulate the muscles of each part of the body to exercise, lower limbs and thighs to exercise the lower body and chest exercise to the upper body, whole body exercise for sit-ups, etc. It may be formed to include. The configuration and operation of each of the motion units will be described later.

As can be seen from Figure 1, the functional chair according to the present invention is used as a tool for a person sitting at the same time having a function as an exercise device, and provides a basic seating space of the top plate 100 and the top plate 100 In the chair formed of the leg 10 is formed at each vertex to support the top plate 100, the back plate 200 is connected to one side of the top plate 100 is formed, the back plate 200 and The back plate 200 may be stably folded, including a folding portion 210 formed at a portion to which the top plate 100 is connected and a support portion formed at the back plate 200, and more easily in this state. It basically includes the lower extremity exercise unit to make the lower body exercise.

The folding portion 210 is formed at a portion where the top plate 100 and the backrest plate 200 are connected to each other so that the backrest plate 200 can be rotated, and the top plate using a pivoting means such as a hinge. The back plate 200 is rotated on the basis of one side of the (100).

The top plate 100 and the back plate 200 may be provided as described above, respectively, to provide a connection portion, that is, a folding portion 210 at the outside, but are integrally provided to have the folding portion 210 therein. It is also possible to be able to deform by.

That is, when trying to exercise in the lying posture, the upper plate 100 is rotated so as to extend in a direction opposite to the formed side so that it can be positioned to have the same height as the upper plate 100, which normally serves as a backrest of a chair. Since the upper plate 100 should be bent and fixed close to the vertical to perform the above, it is preferable to include a fixing means such as a stopper so that the backrest plate 200 can be selectively rotated and fixed.

The support part includes a folding leg 223, a first support 221, and a second support 222, and the folding leg 223 rotates the back plate 200 to have the same height as that of the upper plate 100. Supporting the back plate 200 from the ground when it is disposed in the position so that the arrangement state can be maintained firmly, the opposite sides of the connecting surface of the back plate 200 and the top plate 100 It is provided with folding type. The folding leg 223 has a structure similar to a folding leg formed on a folding table and the like, and after folding the folding leg 223 to be perpendicular to the back plate 200, the back plate 200 is the top plate 100. When rotated horizontally, as shown in FIG. 2, the folding leg 223 supports the back plate 200.

The first support 221 is to prevent the deformation and damage of the folding leg 223 by connecting a predetermined portion of each of the two folding legs 223 horizontally, as shown in FIGS. It is preferably formed at the extension end side portion of 223).

The second support 222 connects the first support 221 and the backrest plate 200 in a vertical direction, and increases durability of the folding leg 223 like the first support 221. The lower extremity movement to be described later and organically to enable a smoother lower extremity movement.

By using the above-mentioned folding portion 210 and the support portion, the user can usually perform the function of a chair that can be seated, and when the user wants to exercise, the user can lie down and exercise while the back plate 200 is extended. Modern people who sit and live while they are not limited to sitting posture without having to visit outside facilities can easily perform various sports.

Figure 3 is a perspective view showing the configuration of the lower limb movement unit according to the present invention.

Referring to FIG. 3, the lower extremity exercise part organically acts with the second support 222 to enable the user to more easily exercise the lower body. The reference table 234 and the first connecting table 231 and The second connecting rod 232 is configured.

The reference stage 234 is formed of a pipe or the like, one end of which is rotatably coupled to a portion where the second support is connected to the backrest plate, and the other end includes a locking bar formed in a direction perpendicular to the reference stage 234. Allow the user's feet to be seated.

The first and second connecting rods 231 and 232 have a shape such that the length of the first and second connecting rods 231 and 232 may be adjusted by using a material having elasticity such as a spring therein. Is rotatably coupled to one side of, the other end is connected to the lower end of the second support 222, the second connecting portion 232 is one end portion end side portion (hanging bar is formed in the reference base 234) The other end) and the other end is connected to the lower end of the second support 222.

In particular, the second support 222 and the first and second connecting rods 231 and 232 are connected to each other via the connecting portion 233, and the connecting portion 233 is the first and second connecting rods 231 and 232 and the second support. By allowing the connection point of 222 to be moved along the second support 222 to support the load to enhance the durability of the back plate 200 and the support and at the same time the reference table 234 It is to make the lifting easier.

The connection part 233 is formed of a ring formed to surround a part of the outer circumferential surface of the second support 222 in a state in which the first and second connection bands 231 and 232 are coupled, along a length direction of the second support 222. Sliding movement is possible, and the coupling means is formed in the ring to be coupled to the first and second connecting rods (231,232), the coupling means is formed to be rotatable so that the connecting portion 233 is the second When sliding along the support 222, the coupling portion of the first and second connecting rods 231 and 232 and the connecting portion 233 can be stably folded as necessary.

Referring to FIG. 3, the second support 222 may be provided with a receiving groove 222a to accommodate the first and second connecting rods 231 and 232, which is vertically supported by the back plate 200. When standing close to function as a chair, the first and second connecting rods 231 and 232 are accommodated in the accommodation grooves 222a formed in the second support 222, so that the first and second connecting rods 231 and 232 are more clean and stable. To be stored.

The accommodating groove 222a has one side of the outer circumferential surface of the second support 222 which extends along the length direction, and may be formed similarly to the shapes of the first and second connecting tables 231 and 232. will be.

When the receiving groove 222a is formed as described above, the receiving groove 222a is formed to surround a portion of the outer circumferential surface of the second support 222 on which the sliding support moves along the longitudinal direction of the second support 222. The connecting portion 233 may further include a protrusion 233a to be fitted into the receiving groove 222a as shown in FIG. 2, wherein the protrusion has a shape of the receiving groove 222a. It is preferable that the connecting portion 233 is moved along the outer circumferential surface of the second support 222 while the protrusion 233a is fitted in the receiving groove 222a.

Referring to the embodiment of the lower extremity movement part, when the functional chair according to the present invention is utilized as a chair as shown in Figure 1, the connecting portion 233 is the upper portion of the second support 222, that is, the back plate When the first and second connecting rods 231 and 232 are folded upward by being positioned at the side of the 200, the length of each of the first and second connecting rods 231 and 232 is deformed to match the folded state. At this time, when the reference stage 234 is folded to the side in which the first and second support members are formed and the support portion is folded toward the backrest plate 200 side, the support portion and the lower leg movement part stand together with the backrest plate 200. Are kept.

Referring to Figure 2 when the user intends to exercise, the folding portion folds the support leg 223 is perpendicular to the backrest plate 200, and then back plate using the folding portion 210 When the 200 is extended, the connection part 233 is moved to the lower part of the second support 222 by the pressure applied by the back plate 200 being extended, and the lengths of the first and second connection tables 231 and 232 are extended. Is adjusted to maintain a stable stretched state to support the load of the user sitting or lying on the backrest plate 200 and the backrest plate 200.

In the state in which the back plate 200 is opened, the user is seated on the back plate 200 to fix the foot to the locking bar of the base table 234, and then the base table 234 up and down by the force of the lower body. By lowering and lowering the bar can be exercised, in the usual state that the connecting portion 233 is moved to the lower portion of the second support 222, the connecting portion 233 gradually raises the locking bar upward by the force of the user's lower body. At the same time, the length of the second connecting rod 232 is elastically increased to stimulate the lower body strength of the user. In this case, the length of the first connecting rod 231 is slightly reduced, and the second connecting rod 232 is applied to the second connecting rod 232 so that the connecting portion 233 does not suddenly move by moving elastically. The pressure is transmitted through the connection part 233 to disperse, thereby enabling more efficient muscular exercise.

As described above, the elastic force of the first and second connecting rods 231 and 232 is organically acted, so that the reference stage 234 does not suddenly move due to the user's force, so that the user can exercise the lower leg more stably and efficiently. It is.

Referring back to FIG. 2, the reference stage 234 may further include a fixing part 240 that is formed to be adjustable in length in consideration of the user's height, and may be fixed at a specific length.

The reference stage 234, by using two pipes of different diameters, it is preferable to be able to adjust the length by inserting the small diameter pipe in the large diameter pipe by sliding movement. At this time, the reference base 234 includes a fixing part 240 to be fixed at a specific length, the fixing part 240 is inserted tube formed in the chimney shape formed on one side of the large diameter pipe 234a and a plurality of through-holes formed at one side of the small diameter pipe are inserted to prevent the two pipes from flowing with each other. As shown in FIG. 2, the handle 243 and the vertical stand 242 are shown. , The first spring 244 and the fixed tube 241.

Fixing tube 241 is formed in a cylindrical shape with an upper portion is made of a height shorter than the height of the insertion tube (234a) is inserted into the insertion tube (234a). The bottom surface of the fixing tube 241 is connected to the vertical bar 242, the vertical bar 242 is coupled to the bottom surface center portion and extends vertically from the inside of the fixing tube 241 to the top of the insertion tube (234a).

The handle 243 is bent to extend below 90 ° from the extending end of the vertical stand 242, but the hinge portion is formed in the connecting portion of the handle 243 and the vertical stand 242 to be rotatably coupled The central portion of the length of the handle 243 is formed to be in contact with one side of the opening of the insertion tube 234a to elevate the fixing tube 241 on the principle of the lever as shown in FIG. 3.

The first spring 244 extends to the bending point of the handle 243 surrounding the handle 243 in a state where one end is coupled to the bottom surface of the fixed tube 241. This spring allows the up and down movement of the fixing tube 241 to be made elastic, so that the lifting movement of the fixing tube 241 can be more easily performed.

Referring to the embodiment of the fixing portion 240, holding the extension end of the handle 243 and pressing downwards the handle 243 is rotated at the extension end of the vertical stand 242 due to the hinge to the vertical When the stand 242 is raised in a vertical state to lift the fixed tube 241 and release the handle 243, that is, when the extension end of the handle 243 is located at the upper side of the fixed tube 241. The fixed tube 241 is lowered due to the load. In this way it is possible to adjust the length of the reference stage 234 by adjusting the position of the specific through-hole and the insertion tube (234a).

Figure 4 is a perspective view showing the configuration of the whole body movement unit according to the present invention.

As illustrated in FIG. 4, the upper plate 100 according to the present invention has a whole body exercise unit 110 for allowing a user to do sit-up exercise.

The whole body 110 is formed of a guide tube 111 and the foot fixing bar 112 and the fixing means 113, the guide tube 111 is made of a pair, but one end of each of the top plate 100 It is coupled to the through-hole formed on one side of the) is formed to extend to the back side (the direction in which the leg 10 extends from the top plate 100) of the top plate 100, that is to say through holes It means that one end of the pipe-shaped guide tube 111 is included is extended in the direction in which the leg 10 is extended to the through-hole.

Foot fixing bar 112 has the same length as the separation distance of the both guide pipes 111 and the outer circumferential surface is vertical in the same direction at both ends of the cross and formed so as to correspond to the through hole of the guide pipe 111, respectively It includes an extended longitudinal bar, the end of the longitudinal extension is inserted into the guide tube 111, respectively, the longitudinal rod is drawn in and out in the guide tube 111 in a sliding movement manner. At this time, it is preferable that the shape of the outer circumferential surface of the foot fixing bar 112 and the shape of the inner circumferential surface of the guide tube 111 are made circular so as to allow easier sliding movement.

Fixing means 113, so that the extraction degree of the foot fixing bar 112 can be adjusted according to the user's convenience, the foot fixing bar 112 and the guide tube 111 are provided with a through-hole, respectively, withdraw the appropriate level In this state, both holes may be corresponded to be fastened by fastening using a fastener or the like, and a means such as the fixing part 240 may be used as necessary.

Referring to one embodiment of the whole body exercise unit 110 having the above-described configuration, usually, the longitudinal rods 112b are all inserted into the guide tube 111 and the crossbars 112a are formed on the surface of the upper plate 100. Is stored in a shape in which the user wants to sit up, the foot fixing bar 112 is pulled out from the guide tube 111 in a state of lying down and the user's foot is inserted into the foot fixing bar 112. To fix it.

The user can perform a sit-up exercise in a state where the user's foot is fixed in the foot fixing bar 112 by the above-described method, and after the exercise is finished, the foot fixing bar 112 is inserted into the guide tube 111 again. By doing so, the foot fixing bar 112 does not protrude to the outside of the upper plate 100, so that when used as a chair again, there is no foreign object or discomfort even when the user is seated.

Referring back to FIGS. 1 and 2, the thigh exercise unit is used as a means for strengthening the thigh muscle strength of the user, and includes a movable table 121, a knee protector, and a second spring 122.

In order to provide the thigh movement part, a third support 11 must be formed on the whole, and the third support 11 is provided at both ends of opposite sides of the side connected to the back plate 200 in the upper plate 100. By connecting the legs 10 formed in each, it has the same shape and function as the first support 221.

As shown in FIG. 1, the movable table 121 is rotatably coupled at a central portion of the third support 11 to extend in a 'V' shape, and an extended end portion thereof faces the upper plate 100. It is formed to abut the side. The extension end of the movable table 121 is preferably further extended beyond the opposite side of the upper plate 100 so that the user's knee is in contact with this portion.

The extended end of the movable base 121 is positioned as if caught inside the user's knee so that the movable base 121 is coupled with the third support 11 so that the movable base 121 can be retracted and opened by the lower extremity muscle of the user. Should be able to be rotated to a certain level.

Since the user's knee is in contact with the extension end of the movable table 121, it is preferable to have a knee protector 121a made of a soft material such as sponge or cotton, and the knee protector 121a is the movable table 121a. It is formed to surround all the extended ends of the) to protect the user's knee skin.

The second spring 122 is made of a pair of elastic material to impart elasticity to the movable base 121, and the second spring 122 has one end of the second support 222 formed therein. It is connected to a predetermined portion of the leg 10, and the other end is connected to a predetermined portion of the left and right moving base 121, respectively, so that the user can tighten the extension end of the moving base 121 with the force of the lower body When elasticity is given to the user to stimulate the lower body strength.

That is, when describing an embodiment of the thigh exercise unit, the user is seated on the top plate 100 in a state in which the second spring 122 is installed, spreading both legs and opening the movable table 121 on the inside of the left and right legs, respectively. Place it in Thereafter, the movable table 121 is moved while moving left and right in an open and closed manner, and at this time, the user can perform a lower body movement due to the elasticity of the second spring 122. Using the thigh exercise unit, as well as the exercise of the inner thigh muscles can be combined with the sphincter exercise.

This thigh exercise unit is provided so as to exercise in a seated state, even when using the functional chair according to the present invention, that is, the backrest plate 200 is not rotated, that is, sitting on a chair to study or study In the case of the back, you can exercise more time to ensure more efficient use of time.

In addition, by using the functional chair according to the present invention as described above, it is possible to exercise the upper body, including chest movement, for this purpose may be additionally included in the chest movement.

Chest exercise unit is formed on both sides of the upper plate 100 to allow the user to exercise the muscles by lifting and spreading the chest exercise unit by the force of the chest, shoulders and arms, the flex bar 131 and the third spring 132 )

The curved bar 131 is formed in a pair and has a shape such as 'b' including a vertical extension part 131a and a horizontal extension part 131b as a whole, and the horizontal extension part 131b is connected to the upper plate 100 through a connecting means. Bar is rotatably coupled to both sides of the bar, the vertical extension portion 131a of the curved bar 131 extends to both upper sides of the upper plate 100 so that the user can grip.

The third spring 132 is formed so as to connect the two horizontal extension portion (131b) on the back side of the upper plate 100 so as to have elasticity in the bending bar 131 is retracted and spread will be.

This chest movement part is to allow the user to exercise the chest and shoulders and arms by holding both the bending bar 131 with both hands, and then inwardly and spread outwards after sitting on the top plate 100.

As described so far, the configuration and operation of the functional chair according to the present invention have been expressed in the above description and the drawings, but this is merely an example, and the spirit of the present invention is not limited to the above description and the drawings, and the technical features of the present invention. Of course, various changes and modifications are possible without departing from the spirit.

10: Leg 11: Third Support
100: top 110: body exercise part
111: guide tube 112: foot fixing bar
121: movable arm 121a: knee guard
122: second spring 131: bending bar
131a: vertical extension 131b: horizontal extension
132: third spring 200: back plate
210: folds 221: first support
222: second support 222a: receiving groove
223: folding leg 231: first connecting rod
232: second connecting rod 233: connecting portion
233a: projection 234: reference frame
234a: insertion tube 235: locking bar
240: fixed part 241: fixed tube
242: vertical stand 243: handle
244: first spring

Claims (7)

In a chair including a top plate and a leg,
A back plate connected to one side of the top plate;
A foldable part including a hinge for pivoting the back plate to one side of the top plate and a stopper for allowing the back plate to be fixed at an angle;
The back plate is,
At least two folding legs formed at both ends of the back plate and supporting the back plate when the back plate is rotated to be parallel with the top plate, a first support for connecting the folding legs in a horizontal direction; A support including a second support for connecting the first support and the backrest plate in a vertical direction between each folding leg;
A reference table having a locking bar having one end rotatably coupled to a portion where the second support is connected to the back plate and having a rest bar for seating the user's foot at the other end;
A first connecting rod having one end rotatably coupled to one side of the back plate and the other end connected to a lower end of the second support via a connecting portion, and having an elastically adjustable length;
Characterized in that it comprises a; the lower end of the movement portion is connected to the engaging bar portion and the other end is connected to the lower end of the second support via a connecting portion via a second connecting rod elastically adjustable length; Functional chair. The method of claim 1,
The connecting portion
Consists of a ring formed to surround a portion of the outer circumferential surface of the second support in a state in which the first and second connection bars are coupled,
The chair is characterized in that the sliding movement along the longitudinal direction of the second support. The method of claim 1,
The second support,
One side of the outer peripheral surface of the functional chair characterized in that it comprises a receiving groove that extends in the longitudinal direction to provide a space that can accommodate the first and second connecting rod when the back plate is erected. The method of claim 1,
The reference band,
The small diameter pipe is formed to be inserted into the large diameter pipe, a plurality of through holes are formed in the small diameter pipe, the insertion tube is formed in the outer side of the large diameter pipe to be able to pass through,
Inside the insertion tube,
A fixed tube formed in an open cylindrical upper portion and inserted into the insertion tube;
Vertical stand extending vertically from the bottom center portion of the fixed tube to the upper portion of the insertion tube,
A handle extending from the extending end of the vertical stand so as to be rotated by a hinge, the one side of which is in contact with the upper opening of the insertion tube;
And one end of which is coupled to the bottom surface of the fixed tube and comprises a first spring extending to surround the vertical stand. The method of claim 1,
The top plate,
A pair of guide tubes having one end coupled to each other through a through hole formed at one side of the upper plate,
A foot bar including vertical bars extending vertically from both ends of the horizontal bar and the horizontal bar, wherein each of the vertical bars is inserted into the guide tube through the through hole and is moved in and out by sliding;
Further provided with; the whole body movement portion comprising a fixing means for allowing the foot fixing bar to be fixed in a state drawn out a certain length;
Functional chair, characterized in that to perform the sit-up exercise in the state fitted with the foot fixed bar. The method of claim 1,
A third support for connecting the two legs is further formed on the leg formed on the opposite side surface of the surface connected to the back plate in the upper plate,
The third support,
It extends in the 'V' shape at the center portion, respectively, and includes a moving table formed so that the extension end portion is in contact with the opposite side of the upper plate,
In the leg and the movable table on which the third support is formed,
And a second spring, one end of which is respectively connected to both legs on which the third support is formed, and the other end of which is respectively connected to the movable table. The method of claim 1,
On the top plate,
The chest is formed on both sides of the upper plate to move elastically from side to side to allow the user to exercise the upper body; is characterized in that the functional chair is further formed.

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