WO2019124974A1

WO2019124974A1 - Lift chair

Info

Publication number: WO2019124974A1
Application number: PCT/KR2018/016241
Authority: WO
Inventors: 차영철
Original assignee: 주식회사 컴포트
Priority date: 2017-12-20
Filing date: 2018-12-19
Publication date: 2019-06-27
Also published as: KR20200067900A; JP2021505306A; JP7035195B2

Abstract

A lift chair, according to the present invention, comprises: a seat on which a user is capable of sitting; a link provided at a lower portion of the seat so as to lift the seat; a gas cylinder for providing a predetermined power to the link; and a lift force adjusting device for adjusting force by which the gas cylinder lifts the seat, wherein the lift force adjusting device includes: an angle adjusting lever directly or indirectly connected to one end of the gas cylinder so as to adjust an angle of the gas cylinder; and an angle adjusting case for accommodating the angle adjusting lever to be movable in the vertical direction.

Description

Standing-up chair

The present invention relates to an upright supporting chair which can help a user sitting on a seat to stand up, and can easily rotate the seat upwardly and forwardly by simple operation, and can easily adjust the lifting and rotating force of the seat without external power The present invention relates to a wheelchair and an upright supporting chair which can be used.

In modern society, chairs are used in situations such as work, leisure, and relaxation. Therefore, elderly or musculoskeletal sufferers who are able to live independently have more time to live in their chairs.

On the other hand, most elderly people with weak joints or musculoskeletal disorders have weak muscles and are unlikely to occur in a chair alone, and fall accidents due to erroneous central movement occur at the time of standing. To solve this problem, wheelchair and standing up chair have been recently developed for the elderly.

Korean Patent Laid-Open Publication No. 2011-0074342 discloses that when the end portion of the armrest portion is pressed by using the load of the upper body, the seat positioned parallel to the armrest portion is lifted up and simultaneously rotated so that the hip is lifted and the center of gravity of the upper body A functional chair for assisting an upright movement while moving forward is disclosed.

On the other hand, according to the related art, since the user has to operate with a force of a predetermined size or more for the standing-up assistant operation, it is difficult for the elderly person with weak muscles to voluntarily use. In addition, since the stand-up assistance operation is continuously performed according to the mechanically set rotation angle and stroke, it is difficult to assisting the user to stand in accordance with the body weight and body shape of the user, and in addition, There is a problem.

Korean Patent Laid-Open Publication No. 2011-002969 discloses an upright auxiliary chair capable of standing up and reclining when the electric driver is operated, the movement of the seat back and the back plate being guided by the seat guide.

Meanwhile, according to the related art, in addition to the electric motor, an external power or a battery for driving the motor must be provided since the power transmission portion such as a pinion and a lever is used for converting the power of the motor into a linear reciprocating motion in addition to the electric motor , Thereby complicating the structure and increasing the production cost.

An object of the present invention is to provide an upright supporting chair and a wheel chair which can rotate the seat forward by a simple operation. An object of the present invention is to provide an upright supporting chair capable of adjusting a vertical force suitable for a user's body shape by a simple operation.

Another object of the present invention is to provide an upright supporting chair and a wheelchair which can easily adjust the lifting and rotating force of the seat without external power.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a standing up chair having a seat tilting module capable of rotating the seat forward by a simple operation.

In particular, it is an object of the present invention to provide an upright auxiliary chair having separate mounting means for enabling the seat tilting module to be applied to various types of chairs.

The standing up chair according to an embodiment of the present invention comprises a seat on which a user is seated, a link means provided on the lower portion of the seat for standing up the seat, a gas cylinder for providing a predetermined power to the link means, And an upstanding auxiliary force regulating device for operating the angle? Of the gas cylinder in which the gas cylinder stands the sheet.

The standing assist force adjusting device includes an angle adjusting lever for adjusting an angle α of the gas cylinder and an angle adjusting case for vertically movably holding the angle adjusting lever 560. The angle? Of the gas cylinder is vertically movable so that the angle? Of the gas cylinder can be manipulated intuitively.

An upright supporting chair according to an aspect of the present invention includes a seat on which a user can sit, a chair body on which the seat is mounted, a pair of fixed frames And a seat tilting module disposed between the supporter and the seat, the seat tilting module for standing up and driving the seat to tilt forward. The supporter is adjustable in length. Accordingly, the seat tilting module has an advantage that it can be employed in various kinds of chairs.

The standing up chair according to the present invention can help the user sitting on the seat to stand up by the seat control lever being lifted up and tilted forward by the movement of the link means and the gas cylinder .

Particularly, by employing a four-bar link in a seat tilting module that assists standing of the seat, a stable standing and seating assist function can be provided to the user. , The seat can be driven in the same direction as the user's standing direction when the user sitting on the seat stands up. Further, when the user sits on the seat in a standing state, the seat can be driven in the same direction as the seating direction of the user. Therefore, even a person with weak muscles such as the elderly can easily provide stable standing and sitting assist functions by a simple operation.

Further, by using the standing assist force adjusting device, the angle? Of the gas cylinder for adjusting the lifting force and the rotational force of the seat can be adjusted.

In addition, since the angle (?) Of the gas cylinder can be intuitively operated without external power, the user can easily adjust the standing assist force to match the body weight and the body shape.

Further, since the length of the supporter supporting the seat tilting module can be easily adjusted, the seat tilting module can be easily adopted for a chair having various widths.

FIG. 1 is a perspective view illustrating an standing up chair according to an embodiment of the present invention. FIG.

2 is a perspective view showing a seat tilting module and a seat portion according to an embodiment.

3 and 4 are views showing the operating state of the seat tilting module in the operation of the standing up chair according to an embodiment.

FIGS. 5 and 6 are diagrams showing an operating state of the standing assist force adjusting device according to an embodiment.

7 is a partial enlarged view showing a standing lock in a seat tilting module according to one embodiment.

8 and 9 are views showing an operating state of the standing lock device according to an embodiment.

9 is a perspective view showing a standing up chair according to another embodiment of the present invention.

10 is a perspective view showing a seat tilting module and a seating portion according to another embodiment.

11 and 12 are views showing the operating state of the seat tilting module in the operation of the standing up chair according to the embodiment.

13 is a perspective view showing a supporter according to another embodiment.

14 is a bottom view showing a supporter in a first state according to another embodiment.

15 is a bottom view showing a supporter in a second state according to another embodiment.

17 is a bottom perspective view of a seat tilting module and a seating portion showing a state in which a fixing mechanism according to another embodiment is fixed to a side frame.

18 is a bottom perspective view of a seat tilting module and a seating portion showing a state in which a fixing mechanism according to another embodiment is fixed to a side frame.

19 is a partial enlarged view showing a fixed state of the fixing mechanism as seen from the inside according to another embodiment.

20 is a partially enlarged view showing a fixing state of the fixing mechanism viewed from the outside according to another embodiment.

FIG. 21 is a partially enlarged view showing a state in which the fixing mechanism seen from the inside is released in accordance with another embodiment. FIG.

FIG. 22 is a partially enlarged view showing an unlocked state of the fixing mechanism viewed from the outside according to another embodiment; FIG.

23 is a bottom view showing a supporter in a first state according to another embodiment.

24 is a bottom view showing a supporter in a second state according to another embodiment.

Hereinafter, the present embodiment will be described in detail with reference to the accompanying drawings. It should be understood, however, that the scope of the inventive concept of the present embodiment can be determined from the matters disclosed in the present embodiment, and the spirit of the present invention possessed by the present embodiment is not limited to the embodiments in which addition, Variations. In the drawings, the same members are denoted by the same reference numerals even if their numbers are different.

[Embodiment: An embodiment in which an angle adjusting lever is included to adjust the standing assist force]

FIG. 1 is a perspective view illustrating a standing up chair according to the present invention, and FIG. 2 is a perspective view showing a seat tilting module and a seat according to an embodiment of the present invention.

1 and 2, the standing upright chair 1 according to an embodiment of the present invention may include a chair body 10 formed of a plurality of

frames

111, 112, and 115. A plurality of

wheels

210 and 220 may be mounted on the chair body 10. Therefore, the chair body 10 can be moved by the user's operation by the plurality of

wheels

210, 220.

The plurality of

frames

111, 112 and 115 may include support frames 111 and 112 on which the

wheels

210 and 220 are mounted.

The support frames 111 and 112 may be provided as a pair and the pair of support frames 111 and 112 may include a first support frame 111 on which the auxiliary rotation wheel 210 is mounted, And a second support frame 112 on which the second support frame 220 is mounted. The main rotating wheel 220 may be provided with power for driving the standing up chair 1. The power may, for example, be provided by a motor. As another example, it is also possible that the power is provided as a force (attraction) of the user. Meanwhile, the auxiliary rotating wheel 210 may be used to change the direction. For this purpose, the auxiliary rotating wheel 210 may be rotatably coupled to the first support frame 111.

The standing up chair 1 may include a handle 113 extending from the second support frame 112 and capable of being held by the user. When the main rotation wheel 220 is positioned below the second support frame 112 with the second support frame 112 as the center, the handle 113 is positioned on the upper side of the second support frame 112 As shown in FIG.

The plurality of

frames

111, 112 and 115 may further include side frames 115 and 115 'connecting the first support frame 111 and the second support frame 112 to each other.

In the present embodiment, the side frames 115 and 115 'provided in the standing up chair 1 may be provided as a pair. In other words, the standing upright chair 1 includes a side frame 115 provided on one side of the chair body 10 and a side frame 115 'provided on the other side of the chair body 10 . The pair of side frames 115 and 115 ' For convenience of explanation, the side frame 115 provided on one side of the chair body 10 will be described, and the side frame 115 provided on the other side of the chair body 10 The description is omitted.

The side frame 115 may include a second side frame 117 connecting substantially the center of the first support frame 111 and the second support frame 112. The side frame 115 may further include a first side frame 116 connecting the first support frame 111 and the second support frame 112 on the upper side. The first side frame 116 may be disposed above the second side frame 117. The side frame 115 may further include a third side frame 118 connecting the first support frame 111 and the second support frame 112.

The plurality of

frames

111, 112 and 115 may further include a connection frame (not shown) connecting the side frames 115 and the side frames 115 '. The connection frame may connect the third side frame 117 on one side and the third side frame 117 'on the other side. In addition, the connection frames may be provided in plural, and a plurality of connection frames may connect the side frames 115 on one side and the side frames 115 ' on the other side.

In this embodiment, the connection frame may be omitted. It is also possible that the backrest 140 described below performs the function of the connection frame instead.

The chair body 10 may further include a back portion 140 on which the user can expect the back. The backrest 140 is configured to provide a predetermined cushion and to lean comfortably. Also, the backrest 140 is mounted in a state of being vertically or rearwardly inclined with respect to a seat (not shown). To this end, the backrest 140 may be disposed behind the seat tilting module 500 for manipulating the movement and tilt of the seat in the plurality of

frames

111, 112, 115 . For example, the backrest 140 may be formed of a surface material. A more detailed description of the always-on seat tilting module 500 is described below.

The chair body 10 may further include a footrest 180 for supporting a foot of a user who is seated on the seat.

A seating part 150 for supporting the seat tilting module 500 may be installed between the side frame 115 and the side frame 115 '. In other words, the seating part 150 can connect the side frames 115 on one side and the side frames 115 'on the other side.

On the seating part 150, a seat for seating the user can be positioned. The seat tilting module 500 may be disposed between the seat and the seating portion 150 to assist the user in standing up and sitting on the seat.

The seating part 150 may include a fixed frame 151 disposed between the side frame 115 and the side frame 115 '. The plurality of fixed frames 151 may be provided. In addition, a plurality of fixed frames 151 may be disposed adjacent to the second side frame 117 and the three side frames 118, respectively. In detail, the plurality of fixed frames 151 may include first to fourth fixed

frames

151a, 151b, 151c, and 151d. The first fixing frame 151a and the second fixing frame 151b may be disposed adjacent to the pair of second side frames 117 and 117 ', respectively. The third fixed frame 151c and the fourth fixed frame 151d may be disposed adjacent to each of the pair of third side frames 118 and 118 '.

The seating part 150 may further include a fixing part 160 for fixing each of the plurality of fixed frames 151 to adjacent side frames 117, 117 ', 118, 118'. The fixing portion 160 may connect the fixed frame 151 and the side frames adjacent to the fixed frame 151 to each other. The fixing part 160 may be screwed to the fixed frame 151 and the side frames adjacent to the fixed frame 151, respectively.

The seating part 150 may include a connection frame 152 connecting one of the plurality of fixed frames and the other. The connection frame 152 may have an approximately `X` shape. For example, the connection frame 152 may have a shape in which one frame and another frame cross each other. And the intersecting inner sides of the one frame and the other frame may be hingedly folded or unfolded. For example, when one frame and another frame of the connection frame 152 are folded, the connection frame 152 may have an approximately 'I' shape. At this time, it can be understood that the chair body 10 is folded. Accordingly, the user can more easily carry the standing up chair 1. As another example, when one frame and another frame of the connection frame 152 are rotated in directions away from each other, the connection frame 152 may have a substantially 'X' shape. At this time, it can be understood that the chair body 10 is unfolded (or installed) so that the user can be seated.

Meanwhile, a plurality of the connection frames 152 may be provided. For example, the connection frame 152 may include a first connection frame 152a and a second connection frame 152b. The first connection frame 152a may connect the first fixing frame 151a and the fourth fixing frame 151d. In addition, the second connection frame 152b may connect the second fixed frame 151b and the third fixed frame 151c.

The connection frame 152 may include the first connection frame 152a and the second connection frame 152b and the third connection frame 152c and the fourth connection frame 152d which are spaced apart from each other. The third connection frame 152c may connect the first fixing frame 151a and the fourth fixing frame 151d. The fourth connection frame 152d may connect the second fixed frame 151b and the third fixed frame 151c.

The first connection frame 152a and the second connection frame 152b are connected to each other in the forward and backward directions of the pair of second side frames (or in a direction in which the pair of second side frames extend long) The frame 152c and the fourth connection frame 152d.

The chair body 10 may further include a supporter 300 for mounting the seat tilting module 500 on the seating part 150. A plurality of supporters 300 may be provided. The plurality of supporters 300 may be mounted on the seating portion 150 to support the seat tilting module 500.

The seat tilting module 500 may be detachably mounted on the supporter 300. For example, the seat tilting module 500 may be screwed to the supporter 300. Since the seat tilting module 500 is detachably mounted to the supporter 300, the maintenance of the seat tilting module 500 can be simplified. The seat tilting module 500 may be welded to the supporter 300 and integrally fastened thereto. In this case, there is a problem that separation between the two is difficult, but the effect of a firm connection between the two can be obtained.

The chair body 10 may include a seat (not shown) provided for the user to sit on. The seat may be provided in a configuration in which the seat is comfortably seated by providing a predetermined cushion as a seat on which the user can sit. The seat may be located on a seat tilting module 500. The chair body 10 may provide a body of a wheelchair.

&Lt; Seat tilting module 500 for manipulating the movement and tilt of the sheet >

The chair body 10 is provided in a module form and may further include a seat tilting module 500 on which the seat is mounted. The seat tilting module 500 can provide a lift and a rotational force to the seat as an auxiliary force. For example, the horizontal seat can be tilted forward while being lifted up by the seat tilting module 500. Thus, the seat (and, of course, the user can easily assume the sitting state of the seat) can be provided with standing up assistance force for standing up the user from the seat tilting module 500.

In other words, the seat in the horizontal state can be raised and moved upward toward the front of the chair body 10 by the seat tilting module 500. At this time, the seat can be forwardly tilted while being upwardly moved by the seat tilting module 500. Therefore, since the direction in which the user who is seated on the seat is aligned with the direction in which the seat 500 is tilted while moving, the user can easily stand up. From the user's perspective, the user can easily stand by the standing assist force generated in the seat tilting module 500.

On the contrary, in a state in which the seat is moved upward forward, the seat tilting module 500 can always move the seat downward toward the rear of the chair body 10. The seat can be returned to the horizontal state in the process of moving downward toward the rear side. At this time, since the direction in which the user sits on the seat on the seat coincides with the direction in which the seat tilting module 500 moves the seat backward, the user can stably sit on the seat.

The seat tilting module 500 may include a seat control device 600 that controls the forward and backward movement of the seat. The seat tilting module 500 can move the seat in the horizontal state upward by operating the seat control device 600. [ Conversely, in a state in which the weight is placed on the seat, the seat control apparatus 600 can be operated. At this time, the seat tilting module 500 can restore the standing state of the seat in a horizontal state while moving the seat backward.

In the present embodiment, the seat control apparatus 600 is described as one configuration included in the seat tilting module 500. [ In another embodiment, the seat control apparatus 600 may be omitted according to the type and product specifications of the gas cylinder 540, which is the driving means of the seat tilting module 500. For example, when the seat control apparatus 600 is omitted, the seat control apparatus 600 may be mounted on the seat tilting module 500, The driving means compresses the gas cylinder 540 when an external force is applied to the seat, so that the entire length of the gas cylinder 540 can be reduced. On the contrary, when no external force is applied to the seat, the entire length of the gas cylinder 540 can be restored.

The seat tilting module 500 may further include a standing assist force adjusting device 550 for adjusting a standing assist force applied to the seat. The standing assist force adjusting device 550 can be achieved by variously setting the angle [alpha] of the gas cylinder 540. [ The fixing plate 520 disposed on the seating part 150 may be provided with an opening for installing the standing assist force adjusting device 550. The opening 521 may be disposed at a rear portion of the fixing plate 520. The standing assist force adjusting device 550 may be installed to be movable up and down with respect to the fixing plate 520 forming the opening 521. At least a portion of the standing assist force adjusting device 550 may be inserted into the opening 521. The rotation center of the gas cylinder 540 can be lowered when the standing assist force adjusting device 550 is installed on the fixing plate 520 while being inserted into the opening 521. Thus, a more compact seat tilting module 500) can be designed.

The angle? Of the gas cylinder can be adjusted by the standing assist force adjusting device 550. More precisely, the angle? Of the gas cylinder may mean a tilted state of the gas cylinder with respect to the fixed plate (520 in FIG. 2) with the rotating plate (510 in FIG. 2) standing up.

The upward force and the rotational force applied to the seat can be adjusted according to the angle? Of the gas cylinder. In other words, the force applied by the seat tilting module 500 perpendicular to the seat (hereinafter referred to as vertical force) can be varied. As the angle? Of the gas cylinder approaches 90 °, the normal force provided to the seat may increase. In contrast, as the angle? Of the gas cylinder approaches 0 deg., The vertical force applied to the seat tilting module 500 can be reduced. For example, a person with a heavy body weight can increase the vertical force by adjusting the angle? Of the cylinder. In summary, the angle? Of the cylinder is set differently based on the physical condition of the user, thereby providing a stable standing motion to the user.

The standing assist force can be adjusted by the above action.

FIG. 2 is a perspective view showing a seat tilting module and a seating unit according to an embodiment. FIG. 3 and FIG. 4 are views showing an operating state of the seat tilting module in operation of the standing up chair according to an embodiment.

Referring to FIGS. 2 to 4, the seat tilting module 500 may include a rotating plate 510 on which the seat is mounted. The seat may be mounted on the upper surface of the rotary plate 510. The rotary plate 510 may be formed in a plate shape, for example. The rotary plate 510 can be moved upward (or upright) in the horizontal direction forward by the four-bar link 530, which will be described later. In the process of rising the rotation plate 510, the rotation plate 510 can be inclined forward. In addition, the rotating plate 510 can be moved downward by the four-link link 530 in the standing state. As the rotary plate 510 moves downward, the rotary plate 510 can be returned to a horizontal state.

The seat tilting module 500 may further include a fixing plate 520 disposed on the seating part 150. The fixing plate 520 may be supported by the supporter 300. Also, the fixing plate 520 may be detachably coupled to the supporter 300. For example, the supporter 300 may be screwed to the supporter 300. However, it is not limited thereto, and it is possible to form a strong body by welding. The four-link 530 may be coupled to the fixing plate 520. Accordingly, the rotating plate 510 can be moved forward or backward with respect to the fixed plate 520. [

The seat tilting module 500 may further include the four-bar link 530 connecting the rotating plate 510 and the fixing plate 520. The four-bar link 530 may be provided as a pair. And a pair of four-link links 530 may be provided on both sides of the rotating plate 510 and the fixing plate 520, respectively.

The four-link 530 includes a first link 531 as a rotating link, a second link 532 as a fixed link, and third and

fourth links

531 and 532 hinged between the first and

second links

531 and 532.

Links

533 and 534, respectively. The first and

second links

531, 532, 533, and 534 may be formed in a plate shape having a 'C' shape in cross section.

The first link 531 may be fixed to the front end surface of the rotating plate 510. The second link 532 may be fixed to the rear end side of the fixing plate 520. The first link 531 may be vertically downwardly positioned with respect to the rotation plate 510 when the rotation plate 510 is in a horizontal state.

The second link 532 may be vertically upright relative to the fixing plate 520 when the rotating plate 510 is horizontal.

One end of the third link 533 may be hinged to the center of the first link 531. The other end of the third link 533 may be hinged to the upper end of the second link 532.

One end of the fourth link 534 may be hinged to the lower end of the first link 531. The other end of the fourth link 534 may be hinged to the lower end of the second link 532.

The seat tilting module 500 further includes the gas cylinder 540 that hinges between the lower portion of the rotating plate 510 and the upper portion of the fixing plate 520 and provides a driving force to the quadric link 530 . The gas cylinder 540 is hingedly connected to the upper portion of the first link 531 and the lower portion of the second link 532 by a cylinder to which a predetermined gas pressure can be applied in an internal compression space, Can provide a driving force to link 530. The gas cylinder 540 may include a cylinder body 541 hinged to a lower portion of the rotary plate 510 and a piston 542 accommodated in the cylinder body. The piston 542 may be connected to the standing assist force adjusting device 550.

The gas cylinder 540 may be connected to the seat control device 600, which will be described later. When the seat control lever 620 of the seat control device 600 to be described below is pulled, the size of the compression space inside the gas cylinder 540 can be varied by a predetermined gas pressure. At this time, if the externally applied force is smaller than the gas pressure, the total length of the gas cylinder 540 increases as the compression space increases. On the contrary, when the force externally acting is larger than the gas pressure, the length of the entire gas cylinder 540 is reduced as the compression space is reduced. The weight of the load can be understood as the weight of the user who is seated on the seat.

On the other hand, when the seat control lever 620 is pulled out, the size of the compression space inside the gas cylinder 540 can be fixed. Therefore, the length of the variable gas cylinder 540 can be maintained.

The standing upright chair 1 of the present embodiment can be used to adjust the weight of the user and the body shape by adjusting the pressure of the gas cylinder 540 by operating the seat control lever 620. [ In addition, even if the gas cylinder 540 having the same pressure is used, the angle? And the stroke of the gas cylinder can be adjusted by using the standing assist force adjusting device 550, Can provide power.

&Lt; Operation state of the seat tilting module 500 >

As shown in FIG. 3, when the user is seated on the seat, the rotation plate 510 and the fixing plate 520 can be maintained in a horizontal state. At this time, the gas cylinder 540 maintains a standing angle [alpha] 'set with respect to the fixing plate 520. [

When the user pulls the seat control lever 620 and moves slightly, the gas cylinder can move from FIG. 3 to FIG. 4 as the entire length of the gas cylinder 540 increases. At this time, the first, third, and

fourth links

531, 533, and 534 are rotated about the respective hinges while the second link 532 is fixed. Accordingly, the rotary plate 510 connected to the first link 531 can be moved upward and tilted forward. In addition, the rotating plate 510 performs a standing assist operation to push up the buttocks of the user. Thereafter, the gas cylinder 540 may be changed to a standing angle [alpha] set for the fixing plate 520, as shown in FIG.

Of course, when the user releases the pulling of the seat control lever 620 during the standing or sitting operation, the length of the gas cylinder 540 can be maintained as it is due to the characteristics of the gas cylinder 540. Thus, the user can maintain the standing angle level of the seat tilting module 500 at a desired position during a standing or sitting operation.

5 and 6 are partial enlarged views of the seat tilting module showing the operating state of the standing assist force adjusting device according to the embodiment.

4 to 6, the angle α between the gas cylinder 540 and the fixing plate 520 can be set by the standing assist force adjusting device 550. 4, an imaginary extension line l1 extending in the longitudinal direction of the gas cylinder 540 by the standing assist force adjusting device 550 and an imaginary extension line L1 extending in the longitudinal direction of the fixing plate 520 The angle between the imaginary extension line l2 extending to the center of the cylinder can be defined as the angle alpha of the cylinder.

The standing assist force adjusting device 550 may include an angle adjusting case 551 coupled to the fixing plate 520. In detail, the angle adjusting case 551 may be installed in the fixing plate 520 having the opening 552. At least a part of the angle adjusting case 551 may be installed to penetrate the opening 552. The angle regulating case 551 may have an open top shape. For example, the cross-section of the angle adjusting case 551 may be formed in a 'C' shape. The angle adjusting case 551 may be detachably coupled to the fixing plate 520. For example, the angle adjusting case 551 may be screwed to the fixing plate 520. As another example, the angle adjusting case 551 may be integrally formed with the fixing plate 520.

The angle adjusting case 551 is provided with an angle adjusting opening 552 for setting the angle alpha of the cylinder between the gas cylinder 540 and the fixing plate 520 and a plurality of

grooves

552a, 552b, 552c, 552d , 552e, 552f, and 552g may be formed. The plurality of grooves 552a through 552g includes a first groove 552a located at the uppermost position (the drawing), a fourth groove 552d located at the center and a seventh groove 552g located at the lowest position ). The plurality of grooves 552a to 552g may include a second groove 552b and a third groove 552c located between the first groove 552a and the fourth groove 552d, A fifth groove 552e and a sixth groove 552f located between the first groove 552d and the seventh groove 552g. The angle adjusting opening 552 may be elongated in a direction different from the extending direction of the imaginary extension line L2 formed in the fixing plate 520 in order to vary the angle α of the cylinder. In other words, the angle adjusting opening 552 extends to the fixed shaft 544 of the cylinder body 541 and the fixed shaft 543 of the piston 542 on the imaginary extension line ll formed in the gas cylinder 540 Can be formed to extend in the direction of a circular arc with the fixed axis 544 of the cylinder body 541 as the center of rotation.

The plurality of

grooves

552a, 552b, 552c, 552d, 552e, 552f, and 552g may be spaced apart from each other along the direction in which the angle adjusting opening 552 extends. The fixed shaft 543 coupled to the piston 542 of the gas cylinder 540 is engaged with any one of the plurality of

grooves

552a, 552b, 552c, 552d, 552e, 552f, and 552g, (?) can be set. The plurality of grooves 552a to 552g may have a groove shape corresponding to the fixed shaft 543. For example, the fixed shaft 543 may have a circular cross section. The plurality of grooves 552a to 552g may have a rounded shape corresponding to the circular shape of the fixed shaft 543. [

The standing assist force adjusting device 550 may further include an angle adjusting lever 560 connected to the fixed shaft 543 for operating the angle? Of the cylinder.

The angle adjusting lever 560 may include a lever body 561. The lever body 561 may have an external appearance extending in a direction parallel to the direction in which the angle adjusting opening 552 extends.

The angle adjusting lever 560 may further include an axial coupling portion 562 coupled to a fixed shaft 543 formed at one end of the piston 542. The shaft coupling portion 562 may be formed at one end of the lever body 561.

The angle adjusting lever 560 may include a handle 563 formed at the other end of the lever body 561. The handle 563 may be circular (or annular) with an open inside for convenience of gripping.

When the user applies an external force to the lever body 561 in the direction opposite to the gravity direction using the lever handle 563, the angle? Of the cylinder can be reduced. As the external force is applied to the lever body 561 in the direction opposite to the gravity direction, the fixing shaft 543 is engaged with the groove located above the currently engaged one of the plurality of grooves 552a to 552g . For example, when the lever shaft 563 is moved upward in a state where the fixed shaft 543 is hooked on the third groove 552c, the fixed shaft 543 is engaged with the first groove 552a and the second groove 552b, And the groove 552b. Formed between an imaginary extension line l1 formed in the extending direction of the gas cylinder 540 and a virtual extension line l2 formed in the extending direction of the fixing plate 520 as the fixed shaft 543 is moved upward. The angle? Of the cylinder can be reduced. Accordingly, the power of the gas cylinder 540 provided to the rotating plate 510 can be reduced.

Conversely, when the rotating plate 510 is lifted by the user in a state in which there is no load on the seat or the rotating plate 510 (or in a state in which the user is not seated), the fixing shaft 543 is moved upward Can be moved. At this time, the fixed shaft 543 can be released from the groove. When the rotary plate 510 is moved to the home position, the fixed shaft 543 can be moved downward by its own weight. At this time, the fixed shaft 543 may be engaged with a groove located downward.

For example, in a state where the fixed shaft 543 is engaged with the third groove 552c, the rotating plate 510 can be lifted and then moved back to its original position. At this time, the fixed shaft 543 may be engaged with any one of the fourth groove 552d and the fifth groove 552e. That is, the fixed shaft 543 can move downward. Formed between an imaginary extension line l1 formed in the extending direction of the gas cylinder 540 and a virtual extension line l2 formed in the extending direction of the fixing plate 520 as the fixed shaft 543 is moved downward. The angle? Of the cylinder can be increased. Accordingly, the power of the gas cylinder 540 provided to the rotating plate 510 can be increased. Of course, it is also possible for the user to increase the angle? Of the cylinder by moving the lever handle 563 in the gravity direction (downward in the drawing).

FIG. 7 is a partially enlarged view showing a standing lock device in a seat tilting module according to an embodiment, and FIGS. 8 and 9 are views showing an operating state of the standing lock device according to an embodiment.

7 to 9, the seat tilting module 500 may include a standing locking device 570 for preventing the rotating plate 510 from being arbitrarily raised. The upright locking device 570 fixes the upper end of the rotating plate 510 to prevent the rotating plate 510 from standing up arbitrarily. Accordingly, the user can safely carry or store the seat tilting module 500.

The upright locking device 570 may include the angle adjusting case 551 and a locking part case 571 provided on the upper side of the fixing plate 520. The lock portion case 571 may have a hexahedral shape having an open top. The standing lock device 570 may include a locking screw thread 572 penetrating the locking portion case 571.

The locking part screw 572 can be rotatably inserted into the locking part case 571. The locking part screw 572 can be horizontally moved to the locking part case 571. For example, when the locking screw 572 rotates in one direction, the locking screw 572 can move toward the inside of the locking portion case 571. On the contrary, when the locking screw 572 rotates in the other direction, the locking screw 572 can move toward the outside of the locking part case 571.

In other words, when the locking screw 572 rotates in one direction, the locking screw 572 can move in a direction to be inserted into the locking part case 571. When the locking screw 572 rotates in the other direction, the locking screw 572 can be moved in a direction in which the locking part case 571 is inserted and released.

The standing lock device 570 may further include a lock portion rotating member 573 rotatably coupled to the lock portion case 571. The level of the rotation of the lock portion rotating member 573 can be determined by being in contact with the lock portion screw 572 and rotated. The lock portion rotating member 573 may be formed in the shape of a bar extending vertically (in the drawing).

The lock portion rotating member 573 may be provided with a lock portion rotating shaft 574 which is rotatably coupled to the lock portion case 571. The lock portion rotation shaft 574 may be provided at the center of the lock portion rotation member 573. The locking part rotating member 573 can be easily rotated with respect to the locking part case 571 by the locking part rotating shaft 574. [ On the other hand, the locking part screw 572 can be brought into contact with the other end of the locking part rotating member 573. As the locking screw 572 is moved, the locking portion rotating member 573 which is in contact with the locking screw 572 can be interlocked.

The locking part rotating member 573 may further include a locking part locking protrusion 575 capable of fixing the rotating plate 510 according to the rotation level. The locking part locking protrusion 574 may protrude from one end of the locking part rotating member 572 toward the rotation plate 510. When the rotation plate 510 is in a horizontal state, the locking part locking protrusion 575 may be engaged with the rotation plate 510. To this end, the rotation plate 510 may be provided with a locking hole 510a through which the locking part locking protrusion 575 can be engaged. When the locking part locking protrusion 575 is engaged with the rotation plate 510, the rotation plate 510 can be fixed without standing.

Meanwhile, the locking screw 572 can move in a direction passing through the locking part case 571. At this time, the locking part screw 572 may be brought into contact with the other end of the locking part rotating member 573. The locking part screw 572 may move in a direction passing through the locking part case 571 to provide an external force to the locking part rotating member 573. Accordingly, the rotation plate 510 can be locked (or fixed) by the locking part locking protrusion 575.

The standing lock device 570 may include a locking portion elastic member 576 connecting the locking portion case 571 and the locking portion rotating member 573 to each other. The locking part elastic member 576 may be positioned above the center of the locking part rotating member 573. When the external force of the locking part rotating member 573 is blocked by the locking part screw 572 by the elastic member 576, the locking part rotating member 573 can be restored.

In summary, the locking screw 572 is inserted into the locking part case 571 to control the rotation of the locking part rotating member 573. When the locking screw 572 is rotated in one direction, the locking screw 572 can be moved toward the inside of the locking part case 571. The locking part screw 572 can move the locking part case 571 interlocked to the inside of the locking part case 571. Accordingly, the lock portion rotating member 573 can rotate around the lock portion rotating shaft 574. [ The locking part locking protrusion 575 can be moved in a direction opposite to the direction in which the locking part screw 572 is moved.

When the locking screw 572 is rotated in the other direction and moved toward the outside of the locking part case 571, the upper part of the locking part rotating member 573 is locked by the elastic member 576, And can be moved in the direction in which the screw 572 is moved. The locking part locking protrusion 575 may be inserted into the groove 510a formed in the rotation plate 510 to fix the rotation plate 510. [

According to the above configuration, when the seat tilting module 500 and the standing up chair 1 are separated from each other, the members can be conveniently carried and stored in a state in which the rotating plate 510 does not move. When the seat tilting module 500 and the standing up chair 1 are coupled to each other, the rotating plate 510 is moved according to the user's operation, so that the user can conveniently use the standing up chair according to the embodiment.

[Other embodiments: Standing auxiliary chair including seat tilting module applicable to various chairs]

FIG. 10 is a perspective view illustrating a standing up chair according to the present invention, and FIG. 2 is a perspective view showing a seat tilting module and a seat according to an embodiment.

10 and 11, the standing upright chair 1 according to an embodiment of the present invention may include a chair body 10 formed of a plurality of

frames

111, 112, and 115. A plurality of

wheels

210, 220.

The plurality of

frames

111, 112 and 115 may include support frames 111 and 112 on which the

wheels

210 and 220 are mounted.

The plurality of

frames

The plurality of

frames

Between the one side frame 115 and the other side frame 115 ', a seating part 150 supporting a seat tilting module 500 to be described below may be installed. In other words, the seating part 150 can connect the side frames 115 on one side and the side frames 115 'on the other side.

The chair body 10 may include a seat (not shown) provided for the user to sit on. The seat (not shown) is configured to allow the user to sit comfortably by providing a predetermined cushion as a seat. In addition, the seat may be located on the seat tilting module 500.

The chair body 10 further includes a backrest 140 on which a user can lean. The backrest 140 is configured to provide a predetermined cushion and to lean comfortably. Further, the backrest 140 is mounted in a state of being vertically or rearwardly inclined with respect to the seat. To this end, the backrest 140 may be disposed behind the seat tilting module 500 in the plurality of

frames

111, 112, and 115. The backrest 140 may be formed of, for example, a cotton material.

The chair body 10 is provided in a module form and may further include a seat tilting module 500 on which the seat is mounted. The seat tilting module 500 can provide a lift and a rotational force to the seat as an auxiliary force. For example, the horizontal seat can be tilted forward while being lifted up by the seat tilting module 500. Accordingly, the seat (and, of course, the user can easily assume the sitting state of the seat) can be provided with standing up assistance force for standing up the seat and the user from the seat tilting module 500.

In the present embodiment, the seat control apparatus 600 is described as one configuration included in the seat tilting module 500. [ Meanwhile, as another embodiment, the seat control apparatus 600 may be omitted depending on the type of the driving means (gas cylinder) of the seat tilting module 500. For example, when the seat control apparatus 600 is omitted, the driving means of the seat tilting module 500 may compress the driving means when an external force is applied to the seat, thereby reducing the overall length of the driving means . Conversely, when no external force is applied to the seat, the entire length of the driving means can be restored.

The seat tilting module 500 may further include a standing assist force adjusting device 550 for adjusting a standing assist force applied to the seat. The standing assist force adjusting device 550 can be achieved by setting the angle of the gas cylinder.

The fixing plate may be provided with an opening for installing the standing assist force adjusting device. The opening may be disposed at a rear portion of the fixing plate. The standing-up assist force adjusting device may be installed to be movable in the vertical direction with respect to the fixing plate forming the opening. At least a part of the standing assist force adjusting device can be inserted into the opening. When the standing assist force adjusting device is installed on the fixing plate while being inserted into the opening, the rotational center of the gas cylinder can be lowered, thereby making it possible to design a more compact seat tilting module 500.

The angle (? Or? ') Of the gas cylinder can be adjusted by the standing assist force adjusting device 550 so that the angle varies depending on the contracted or elongated state of the gas cylinder. More precisely, the angle? May mean a tilted state with respect to the fixed plate (520 in FIG. 2) of the gas cylinder, with the rotating plate (510 in FIG. 2) standing. The angle? Of the gas cylinder can be understood from FIG.

The upward force and the rotational force applied to the seat can be adjusted according to the angle? Of the gas cylinder. In other words, the force applied by the seat tilting module 500 perpendicular to the seat (hereinafter referred to as vertical force) can be varied. As the angle? Of the cylinder approaches 90 °, the normal force provided to the seat may increase. In contrast, as the angle? Of the gas cylinder approaches 0 deg., The vertical force applied to the seat tilting module 500 can be reduced. For example, a person with a heavy body weight can increase the vertical force by adjusting the angle? Of the cylinder. In summary, the angle? Of the cylinder is set differently based on the user's body condition, thereby providing a stable standing assistance force to the user.

&Lt; Configuration of the seating part 150 for seating the seat tilting module 500 >

The chair body 10 may further include a seat 150 on which the seat tilting module 500 is mounted. On the seating part 150, a seat for seating the user can be positioned. The seat tilting module 500 may be disposed between the seat and the seating portion 150 to assist the user in standing up and sitting on the seat.

frames

The seating part 150 may further include a fixing part 160 for fixing each of the plurality of fixed frames 151 to adjacent side frames 117, 117 ', 118, 118'. The fixing portion 160 may connect the fixed frame 151 and the side frames 117, 117 ', 118, 118' adjacent to the fixed frame 151 to each other. The fixing part 160 may be screwed to the fixed frame 151 and the side frames 117, 117 ', 118, 118' adjacent to the fixed frame 151, respectively.

The seating part 150 may include a connection frame 152 connecting one of the plurality of fixed frames and the other. The connection frame 152 may have an approximately `X` shape.

For example, the connection frame 152 may have a shape in which one frame and another frame intersect with each other. And the intersecting inner sides of the one frame and the other frame may be hingedly folded or unfolded. For example, when one frame and another frame of the connection frame 152 are folded, the connection frame 152 may have an approximately 'I' shape. The state in which the connection frame 152 is folded can be understood as a folded state of the chair body 10.

When the connecting frame 152 is folded, the user can more easily carry the standing up chair 1. As another example, when one frame and another frame of the connection frame 152 are rotated in directions away from each other, the connection frame 152 may have a substantially 'X' shape. At this time, it can be understood that the chair body 10 is unfolded (or installed) so that the user can be seated.

Referring to FIGS. 17 and 18, the connection frame 152 may have a plurality of connection frames 152. For example, the connection frame 152 may include a first connection frame 152a and a second connection frame 152b. The first connection frame 152a may connect the first fixing frame 151a and the fourth fixing frame 151d. In addition, the second connection frame 152b may connect the second fixed frame 151b and the third fixed frame 151c.

10 and 11, the chair main body 10 may further include a supporter 300 for mounting the seat tilting module 500 on the seating part 150. Referring to FIGS. A plurality of supporters 300 may be provided. The plurality of supporters 300 may be mounted on the seating portion 150 to support the seat tilting module 500.

The supporter 300 may be removably mounted on the

stationary frames

151a and 151b of the seating unit 150. [ The supporter 300 may have a length adjustable to correspond to a width formed between the first fixing frame 151a and the second fixing frame 151b. Accordingly, there is an advantage that various types of chairs having the first fixed frame 151a and the second fixed frame 151b, for example, a wheelchair can be applied (or compatible). The details of the length adjusting function of the supporter 300 will be described later.

The seat tilting module 500 may be detachably mounted on the supporter 300. For example, the seat tilting module 500 may be screwed to the supporter 300. Since the seat tilting module 500 is detachably mounted to the supporter 300, the maintenance of the seat tilting module 500 can be simplified. The seat tilting module 500 may be integrally welded to the supporter 300. In this case, the seat tilting module 500 is difficult to be separated from the supporter 300, but a strong fastening effect can be obtained.

12 and 13 are views showing an operating state of the seat tilting module in operation of the standing up chair according to an embodiment.

11 to 13, the seat tilting module 500 may include a rotation plate 510 on which the seat is mounted. The seat may be mounted on the upper surface of the rotary plate 510. The rotary plate 510 may be formed in a plate shape, for example. The rotary plate 510 can be moved upward (or upright) in the horizontal direction forward by the four-bar link 530, which will be described later. In the process of rising the rotation plate 510, the rotation plate 510 can be inclined forward. In addition, the rotating plate 510 can be moved downward by the four-link link 530 in the standing state. As the rotary plate 510 moves downward, the rotary plate 510 can be returned to a horizontal state.

fourth links

531 and 532 hinged between the first and

second links

531 and 532.

Links

533 and 534, respectively. The first and

second links

&Lt; Operation state of the seat tilting module 500 >

As shown in FIG. 12, when the user is seated on the seat, the rotating plate 510 and the fixing plate 520 can be maintained in a horizontal state. At this time, the gas cylinder 540 maintains a standing angle [alpha] 'set with respect to the fixing plate 520. [

When the user pulls the seat control lever 620 and moves slightly, the gas cylinder can move from FIG. 12 to FIG. 13 as the entire length of the gas cylinder 540 increases. At this time, the first, third, and

fourth links

531, 533, and 534 are rotated about the respective hinges while the second link 532 is fixed. Accordingly, the rotary plate 510 connected to the first link 531 can be moved upward and tilted forward. In addition, the rotating plate 510 performs a standing assist operation to push up the buttocks of the user. Thereafter, the gas cylinder 540 may be changed to a standing angle [alpha] set for the fixing plate 520 as shown in FIG.

&Lt; Configuration of Supporter 300 Variable in Horizontal Length >

14 is a perspective view showing a supporter according to an embodiment.

14, the supporter 300 includes a supporter main body 310 supporting the seat tilting module 500, a supporter auxiliary body 330 slidably received in the supporter

main body

310, 340 may be included. The supporter

auxiliary bodies

330 and 340 may be provided as a pair. The supporter

auxiliary bodies

330 and 340 may include a supporter first auxiliary body 330 and a supporter second auxiliary body 340. The supporter first auxiliary body 330 and the supporter second auxiliary body 340 may be spaced apart from each other with respect to the center of the supporter main body 310. The pair of supporter

auxiliary bodies

330 and 340 can slide in the left and right directions (in the drawing) with respect to the center of the supporter main body 310.

When any one of the pair of supporter

auxiliary bodies

330 and 340 is moved away from the center of the supporter main body 310 by a first predetermined length, the other one may be separated by the first predetermined length. On the other hand, if any one of the pair of supporter

auxiliary bodies

330 and 340 approaches the center of the supporter main body by the second set length, the other one may be as close as the second set length. In summary, the pair of supporter

auxiliary bodies

330 and 340 can be slid in the horizontal direction (or longitudinal direction) of the supporter main body 310 interlocked with each other. More details of the configuration in which the pair of supporter

auxiliary bodies

330 and 340 are interlocked with each other will be described later.

The supporter 300 may include a length fixing screw 370 for fixing the variable length of the supporter 300. The supporter 300 is formed on the supporter main body 310 and the pair of supporter

auxiliary bodies

330 and 340 and includes at least one through hole through which the length fixing screw 370 can pass 312, 332, 342). In detail, one or more main body through holes 312 may be formed in the supporter main body 310. In each of the pair of supporter

auxiliary bodies

330 and 340, one or more sub-body through

holes

332 and 342 may be formed.

The length fixing screws 370 may be provided as a pair. Any one of the pair of length fixing screws 370 may be attached to any one of the plurality of main body through holes 312 formed in the supporter main body 310 and the one of the plurality of first auxiliary body through holes 332 You can penetrate one. The other one of the pair of length fixing screws 370 is formed on the other one of the plurality of main body through holes 312 formed in the supporter main body 310 and the other one of the plurality of second auxiliary body through holes 342 Any one can penetrate.

The pair of length fixing screws 370 pass through the through

holes

312, 332 and 342 respectively formed in the supporter main body 310 and the pair of supporter

auxiliary bodies

330 and 340, 300 may be fixed.

&Lt; Configuration of supporter 300 to be mounted on seating part 150 of chair body 10 >

The supporter 300 may include a supporter mounting portion 350 detachably mounted on the fixed frame. In detail, the supporter mounting part 350 is bent upwardly at one end of each of the pair of supporter

auxiliary bodies

330 and 340, that is, at the outer end thereof. As a result, the inner space of the supporter can be secured and the respective members can be placed inside. The supporter mounting portion 350 may have a substantially 'A' shape so as to be hung on the fixed frame. The supporter mounting portion 350 may contact the upper surface of the fixed

frames

151a and 151b.

The supporter mounting portion 350 can be screwed to the fixed

frames

151a and 151b. In detail, a mounting hole 351 may be formed in the supporter mounting portion 350. Fixing holes (not shown) may be formed in the fixing

frames

151a and 151b corresponding to the mounting holes 351. The supporter 300 can be fixed to the side frames 115a and 151b of the chair body 10 by inserting bolts (not shown) into the mounting holes 351 and the fixing holes.

The supporter 300 may further include a supporter connection unit 360 connecting the supporter mounting unit 350 and the supporter

auxiliary bodies

330 and 340. The supporter connection part 360 may have a shape bent at least once. For example, the supporter connection portion 360 may have a substantially 'A' shape.

FIG. 15 is a bottom view showing a supporter in a first state according to an embodiment, and FIG. 16 is a bottom view showing a supporter in a second state according to an embodiment.

Referring to FIGS. 14 to 16, a gear 313 may be provided at the center of the supporter main body 310. The gear 313 may be cylindrical, for example, and may have a main uneven portion 314 formed around it. Each of the pair of supporter

auxiliary bodies

330 and 340 may have

sub irregularities

331 and 341 which are in contact with the main irregularities 314.

Any one of the sub concave / convex portions (first sub concave / convex portion) 331 and the other sub concave / convex portion (second sub concave / convex portion) 341 of the pair of supporter

auxiliary bodies

330 and 340 may be spaced apart from each other . In addition, any one of the sub-concave / convex portions 331 and the other sub-concave / convex portions 341 of the pair of supporter

auxiliary bodies

330 and 340 may be opposed to each other. The sub irregularities 331 and the other sub irregularities 341 of the pair of supporter

auxiliary bodies

330 and 340 may have the same length. Accordingly, when any one of the supporter

auxiliary bodies

330 and 340 of the pair of supporter

auxiliary bodies

330 and 340 is moved in one direction, the other one of the supporter auxiliary bodies 340 and the one of the supporter

auxiliary bodies

330 and 340 It can be moved in the opposite direction. Therefore, since the length of the supporter 300 can be easily adjusted by the user, the seat tilting module 500 can be easily mounted on a chair or a wheelchair having various widths.

FIG. 17 is a bottom perspective view of a seat tilting module and a seating portion showing a state in which a supporter fixing mechanism according to an embodiment is fixed to a side frame, FIG. 18 is a perspective view illustrating a state in which the supporter fixing mechanism according to an embodiment is fixed to a side frame Fig. 5 is a bottom perspective view of the seat tilting module and the seating portion showing the seat cushion.

14 to 18, the supporter 300 may further include a supporter securing mechanism 400 for securing the supporter 300 to the seating portion 150. The supporter fixing mechanism 400 can prevent the supporter 300 from being separated from the seating part 150 by an external force. The supporter fixing mechanism 400 may be rotatably installed in the supporter mounting portion 350. For example, when the supporter mounting portion 350 is mounted on the seating portion 150, the supporter fixing mechanism 400 may be contacted with and supported by the fixing frame 151 of the seating portion 150. In other words, the supporter 300 can be fixed to the seating part 150 by the supporter fixing mechanism 400.

Meanwhile, when the supporter fixing mechanism 400 is mounted on the seating part 150 and is rotated in one direction by the user, the supporter fixing mechanism 400 can be released from the fixing state. As the supporter fixing mechanism 400 is released, the supporter 300 can be separated from the seating part 150. [

Hereinafter, the configuration of the supporter fixing mechanism 400 will be described in detail.

FIG. 19 is a partial enlarged view showing a fixed state of the supporter fixing mechanism viewed from the inside according to an embodiment, and FIG. 20 is a partially enlarged view showing a fixed state of the supporter fixing mechanism viewed from the outside according to an embodiment.

FIG. 21 is a partially enlarged view showing a state in which the supporter fixing mechanism seen from the inside is disengaged according to an embodiment, and FIG. 22 is a partially enlarged view showing a disengaged state of the supporter fixing mechanism seen from the outside according to an embodiment.

19 to 22, the supporter fixing mechanism 400 includes a fixing mechanism body 410, a fixing screw 420 serving as a rotation center of the fixing mechanism body 410, And a second screw 460 for supporting the elastic member 430. The elastic member 430 may be formed of a metal material.

The fixing screw 420 may rotatably couple the fixing mechanism body 410 to the supporter mounting portion 350. A fixing mechanism hook 411 may protrude from one side of the fixing mechanism body 410.

The fixing mechanism body 410 may include a first round portion 412a that is in contact with and supported by the seating portion 150. [ The fixing mechanism body 410 may include a second round portion 412b formed at a portion opposite to the first round portion 412a with respect to the fixing mechanism hook portion 411. [ The second round portion 412b may slide on the seating portion 150. [ For example, when the second round portion 412b contacts and slides on the seating portion 150, the fixing mechanism body 410 can rotate in one direction (the direction toward the supporter main body 310) have.

A fixing mechanism protrusion 413 may be provided on the other side of the fixing mechanism body 410 opposite to the fixing mechanism hook 411. The elastic member 430 may be connected to the fixture projection 413. [ For example, one end of the elastic member 430 may be connected to the fixing projection 413.

The elastic member 430 is spring-shaped, and one end of the elastic member 430 can be fixed to the fixing mechanism projection 413, as described above. The other end of the elastic member 430 may be connected to the supporter mounting portion 350. Therefore, when the supporter fixing mechanism 400 is rotated to one side by an external force, restoring force can be accumulated in the elastic member 430. When the external force is interrupted, the supporter fixing mechanism 400 can return to its original position by the restoring force.

The supporter 300 may further include a first screw 450 passing through the fixing mechanism body 410 and the supporter mounting portion 350. The first screw 450 may rotate together with the fixing mechanism body 410. To this end, the supporter mounting portion 350 may be provided with an opening 352 for rotating the first screw 450. The opening 352 may be elongated in the left and right direction (the direction of the drawing) of the fixing mechanism body 410. The turning radius of the fixing mechanism body 410 rotating together with the first screw 450 can be determined by the area of the opening 352 formed in the supporter mounting portion 350. [

Hereinafter, a state in which the coupling between the supporter 300 and the seating part 150 is fixed by the supporter fixing mechanism 400 will be described

&Lt; Operation of supporter securing mechanism 400 for securing engagement between supporter and seat part >

18, the securing mechanism second round portion 412b of the supporter securing mechanism 400 is fixed to the seating portion 150 while the supporter 300 is seated on the seating portion 150, And can be brought into contact with and slid onto the frame 151. Fig. 21 and 22, the supporter fixing mechanism 400 may rotate toward the center of the supporter main body 310. In this case, As another example, when the user applies a force to the fixture projection 413 of the supporter fixing mechanism 400 without contacting the fixing mechanism second round portion 412b and the supporter fixing mechanism 400, The mechanism 400 may rotate toward the center of the supporter main body 310. Accordingly, the supporter 300 can be seated in the seating part 150.

17, when the supporter 300 is seated on the seating part 150, the fixing mechanism first round part 412a of the supporter fixing mechanism 400 is fixed to the fixing frame 150 of the seating part 150, (Not shown). 19 and 20, the supporter fixing mechanism 400 can be moved to the outside (in the drawing) of the supporter 300 by the restoring force of the elastic member 430. As shown in Figs. The fixing mechanism first round portion 412a may be in contact with and supported by the fixing frame 151 of the seating portion 150. [ Therefore, the supporter 300 can be stably fixed without being detached from the seating part 150. [ In other words, the coupling between the supporter 300 and the seating part 150 can be fixed by the fixing mechanism 400. [

Referring to FIGS. 18, 21 and 22, when the user applies a force to the fixing mechanism projection 413 of the supporter fixing mechanism 400, the supporter fixing mechanism 400 can secure the supporter main body 310, As shown in Fig. At this time, the fixed state of the coupling between the supporter 300 and the seating part 150 can be released. Therefore, the supporter 300 can be separated from the seating part 150. [

&Lt; Seat control device coupled to supporter >

Referring again to FIG. 11, the seat control device 600 may include the seat control lever 620 that operates the length and operation of the gas cylinder 540. The seat control lever 620 may have a lever shape that can be manipulated by a user's hand.

The seat control apparatus 600 may further include a seat lever case 610 in which the seat control lever 620 is received. The seat lever case 610 may be detachably attached to the supporter 300. The seat lever case 610 can be screwed to the supporter 300.

[Another embodiment: an upright supporting chair (1) including a length adjustable supporter (300)]

In this embodiment, the elastic member is applied to adjust the length of the supporter as compared with the previous embodiment.

In the present embodiment, the same reference numerals as those of the previous embodiment are used for the sake of convenience of description, and the detailed description of the configuration is omitted.

FIG. 23 is a bottom view showing a supporter in a first state according to still another embodiment, and FIG. 24 is a bottom view showing a supporter in a second state according to another embodiment.

23 and 24, the supporter 300 may include a pair of supporter

auxiliary bodies

330 and 340 and a supporter elastic member 380 connecting the supporter main body 310 have. The supporter elastic member 380 may include a supporter first elastic member 381 connecting the supporter main body 310 and the supporter first auxiliary body 330. The supporter elastic member 380 may further include a supporter second elastic member 382 connecting the supporter main body 310 and the supporter second auxiliary body 340. The supporter elastic member 380 may include, for example, a tension spring and a compression spring.

When at least one of the pair of supporter

auxiliary bodies

330 and 340 is moved in the direction of the center of the supporter main body 310 due to an external force acting on at least one of the pair of supporter

auxiliary bodies

330 and 340 , The restoring force can be accumulated in the supporter elastic member 380. [

Meanwhile, when the external force is interrupted, the pair of supporter

auxiliary bodies

330 and 340 may be provided with the restoring force. That is, the pair of supporter

auxiliary bodies

330 and 340 can move in a direction away from the center of the supporter main body 310.

In summary, if a user applies an external force to at least one of the pair of supporter

auxiliary bodies

330 and 340 and compresses the length of the supporter 300, the restoring force may be accumulated in the supporter elastic member 380 . When a user interrupts the external force while the supporter 300 is mounted on the pair of fixed frames, for example, the first fixing frame 151a and the second fixing frame 151b, the supporter elastic member 380 may be provided to the pair of supporter

auxiliary bodies

330, 340. The length of the supporter 300 can be adjusted according to the width (or length) formed between the pair of fixed

frames

151a and 151b. Therefore, the user can easily apply the supporter 300 to a chair having various widths without using a separate fixing device.

According to the present invention, a stable standing and sitting assist function can be provided to a person with weak muscles such as the elderly person by a simple operation.

According to the present invention, since the angle [alpha] of the gas cylinder can be intuitively manipulated, the user can easily adjust the standing assist force to fit the body weight and the body shape easily.

According to the present invention, the length of the supporter supporting the seat tilting module can be easily adjusted, so that the seat tilting module can be easily adopted for a chair having various widths, so that the standing assistance function can be extended to various articles.

Claims

A seat on which the user is seated;

A link provided at a lower portion of the seat to stand the seat;

A gas cylinder for providing a predetermined power to the link; And

Wherein the gas cylinder includes a standing assist force adjusting device for adjusting a force for standing the seat,

The standing-up assist force adjusting device comprises:

An angle adjusting lever directly or indirectly connected to one end of the gas cylinder to adjust the angle of the gas cylinder; And

And an angle adjusting case for accommodating the angle adjusting lever movably in the vertical direction.
The method according to claim 1,

When the angle adjusting lever is moved upward, the standing assist force is reduced,

Wherein when the angle adjusting lever is moved downward, the standing assist force is increased.
The method according to claim 1,

The link includes:

A rotating plate attached to a lower portion of the seat;

A fixing plate horizontally positioned below the rotary plate; And

And a four-bar link provided between the rotating plate and the fixed plate and communicating the rotating plate so as to be tilted forward with respect to the fixed plate,

Wherein the angle adjusting case is provided on the fixing plate.
The method of claim 3,

And the standing up auxiliary force adjusting device is disposed between the fixing plate and the gas cylinder.
The method of claim 3,

A fixed shaft is provided on one side of the gas cylinder,

And an angle adjusting opening formed in the angle adjusting case so as to extend in the direction intersecting a virtual imaginary line extending in the longitudinal direction of the fixing plate,

Wherein the angle adjusting lever is coupled to the fixed shaft,

And the fixed shaft can be moved along the angle adjusting opening.
6. The method of claim 5,

Wherein the angle-

A lever body,

A fixed shaft coupling portion provided at one end of the lever body and coupled to the fixed shaft,

And a handle provided at the other end of the lever body.
6. The method of claim 5,

Wherein the angle adjusting opening includes a plurality of grooves into which the fixing shaft can be engaged,

Wherein the angle of the gas cylinder is held by the fixed shaft being engaged with any one of the plurality of grooves.
The method of claim 3,

And an upstanding locking device provided on the fixing plate for selectively limiting the standing of the rotation plate.
9. The method of claim 8,

In the standing lock device,

A locking part case coupled to the fixing plate;

A lock portion rotatably supported on the lock portion case and capable of locking or unlocking the rotation plate; And

And a lock screw thread movably installed on the lock case so as to rotate one end of the lock part rotating member.
10. The method of claim 9,

And a locking part locking protrusion at the other end of the locking part rotating member, the locking part locking protrusion being capable of locking the rotation plate in a horizontal state so as to be restricted from rising.
10. The method of claim 9,

The standing-

And a lock portion elastic member connecting the lock portion rotation member and the lock portion case to restore the position of the lock portion rotation member.
A seat on which the user can sit;

A chair body on which the seat is mounted;

A seating part forming a lower portion of the chair body and having at least a pair of fixing frames provided on both sides of the chair body;

A supporter connecting between the pair of fixed frames; And

And a seat tilting module disposed between the supporter and the seat, the seat tilting module for standing up the seat and driving the seat to tilt forward,

Wherein the supporter is adjustable in length.
13. The method of claim 12,

The supporter includes:

A supporter main body supporting the seat tilting module;

A pair of supporter auxiliary bodies horizontally movable in the supporter main body; And

And a supporter mounting portion provided on the supporter auxiliary body and coupled to the fixed frame.
14. The method of claim 13,

The supporter includes:

A plurality of main body through holes formed in the supporter main body;

A plurality of auxiliary body through holes respectively formed in the pair of supporter auxiliary bodies; And

And a length fixing screw passing through the main body through hole and the auxiliary body through hole.
14. The method of claim 13,

Wherein the pair of supporter auxiliary bodies comprises:

A supporter first auxiliary body provided at one side of the supporter main body and horizontally movable within the supporter main body; And

And a supporter second auxiliary body provided on the other side of the supporter main body and horizontally movable within the supporter main body.
16. The method of claim 15,

Wherein the supporter main body includes a pinion rotatably arranged at a central portion thereof,

Wherein each of the supporter first auxiliary body and the supporter second auxiliary body includes a rack contacting the pinion.
16. The method of claim 15,

And the legs of the first auxiliary body of the supporter and the legs of the second auxiliary body of the supporter are arranged to face each other.
14. The method of claim 13,

And an elastic member is provided between the supporter main body and the supporter auxiliary body.
14. The method of claim 13,

Wherein the supporter is rotatably provided on the supporter mounting portion and includes a supporter fixing mechanism for fixing the coupling between the supporter and the fixed frame.
14. The method of claim 13,

Wherein the supporter mounting portion is provided by being bent upward at an outer end of the supporter auxiliary body,

And an end portion of the supporter mounting portion has an " a " shape.