JP2021505306A - Standing auxiliary chair - Google Patents

Abstract

The standing auxiliary chair according to the present invention includes a seat on which a user can sit, a link provided below the seat to stand the seat, a gas cylinder that provides a predetermined power to the link, and the gas. The standing assisting force adjusting device includes a standing assisting force adjusting device for adjusting the force with which the cylinder erects the seat, and the standing assisting force adjusting device is directly attached to one end of the gas cylinder or so as to adjust the angle of the gas cylinder. It includes an angle adjusting lever that is indirectly connected and an angle adjusting case that houses the angle adjusting lever so as to be movable in the vertical direction.

Description

The present invention relates to a standing assist chair that can assist a user sitting in a seat to stand up, and the seat can be raised upward and at the same time rotated forward by a simple operation, and the raising force of the seat can be obtained without external power. And the wheelchair and the standing assist chair whose rotational force can be easily adjusted.

In modern society, chairs are used in situations such as work life, leisure life, and rest, so that people spend more time sitting in chairs, but elderly people who can live independently and musculoskeletal disorders. Those have more time to live in chairs.

On the other hand, elderly people with weak joints and people with musculoskeletal disorders have weak muscle strength, so it is difficult for them to get up from the chair by themselves, and many fall accidents occur due to incorrect center movement when standing up. Recently, wheelchairs and standing assist chairs for the elderly have been developed to solve such problems.

According to Korean Publication No. 2011-0074342, when the end of the arm rest is pressurized by using the load of the upper body, the seat located parallel to the arm rest is lifted upward and rotated at the same time. As a result, a functional chair that assists the standing motion while pushing up the butt and moving the center of gravity of the upper body to the front is disclosed.

On the other hand, according to the prior art, since the user has to operate with a force of a certain magnitude or more for the standing assist operation, it is difficult for the elderly and the like with weak muscles to voluntarily use it. In addition, since the standing assisting motion is continuously performed by the mechanically set rotation angle and stroke, not only is it difficult to assist the standing up according to the weight and body shape of the user, but also a sudden movement of the center of gravity causes a fall or the like. There is a problem that an accident can occur.

Korean Publication No. 2011-002969 discloses a standing assist chair capable of standing support and reclining operation by guiding the movement of the left side of the chair and the backrest by a seat guide when the electric drive is activated. To.

On the other hand, according to the prior art, in addition to the electric motor for the standing assist operation, a power transmission unit such as a pinion and a rack for converting the power of the motor into a linear reciprocating motion is adopted. There is a problem that external power or a battery for driving must be provided, which not only complicates the structure but also increases the cost.

An object of the present invention is to provide a standing assist chair and a wheelchair capable of rotating the seat forward by a simple operation.

An object of the present invention is to provide an upright assisting chair that can adjust a vertical force suitable for a user's body shape with a simple operation.

Another object of the present invention is to provide a standing assist chair and a wheelchair in which the ascending force and the rotational force of the seat can be easily adjusted without external power.

An object of the present invention is to provide an upright auxiliary chair provided with a seat tilt module capable of rotating the seat forward with a simple operation.

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

The standing auxiliary chair of the present invention according to one embodiment is provided with a seat on which a user can sit, a link means provided under the seat, and a link means for raising the seat, and a gas that provides a predetermined power to the link means. Includes a cylinder and a standing assist force adjusting device for manipulating the angle (α) of the gas cylinder from which the gas cylinder raises the seat.

The standing assist force adjusting device includes an angle adjusting lever for adjusting the angle (α) of the gas cylinder, and an angle adjusting case for accommodating the angle adjusting lever 560 so as to be vertically movable. The angle (α) of the gas cylinder can be intuitively operated by providing the gas cylinder angle (α) adjusting lever so as to be movable up and down.

The standing auxiliary chair according to one aspect of the present invention forms a seat on which the user can sit, a chair body to which the seat is mounted, and a pair of chair bodies formed below the chair body and joined to both side surfaces of the chair body. A seating portion provided with a fixed frame, a supporter connecting between the pair of fixed frames, and a seat tilt module arranged between the supporter and the seat and driving the seat to stand up and tilt forward. Including. The length of the supporter can be adjusted. Therefore, the seat tilt module has an advantage that it can be used in various types of chairs.

The standing assist chair according to the present invention can assist the user sitting on the seat to stand by operating the seat control lever to push up the seat by the movement of the link means and the gas cylinder and at the same time tilting forward.

In particular, by adopting a four-section link for the seat tilt module that assists the seat standing, it is possible to provide the user with a stable standing and seating assist function. When the user sitting on the seat stands up, the seat is driven in the same direction as the user's standing direction. Also, when the user sits in the seat in an upright position, the seat is driven in the same direction as the user's seating direction. Therefore, it is possible to provide a stable standing and seating assist function to a person with weak muscle strength such as an elderly person with a simple operation.

Further, the angle (α) of the gas cylinder for adjusting the ascending force and the rotational force of the seat can be adjusted by using the standing assisting force adjusting device.

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

Further, the present invention has an advantage that the length of the supporter supporting the seat tilt module can be easily adjusted, and the seat tilt module can be easily adopted for chairs having various widths.

It is a perspective view which illustrated the standing auxiliary chair which concerns on one Example of this invention. It is a perspective view which shows the seat tilt module and the resting part which concerns on one Example. It is a drawing which illustrated the operating state of the seat tilt module at the time of operation of the standing auxiliary chair which concerns on one Example. It is a drawing which illustrated the operating state of the seat tilt module at the time of operation of the standing auxiliary chair which concerns on one Example. It is a drawing which illustrated the operating state of the standing assist force adjusting device which concerns on one Example. It is a drawing which illustrated the operating state of the standing assist force adjusting device which concerns on one Example. It is a partially enlarged view which shows the standing lock device in the seat tilt module which concerns on one Example. It is a drawing which illustrated the operating state of the standing lock device which concerns on one Example. It is a perspective view which illustrated the standing auxiliary chair which concerns on another Example of this invention. It is a perspective view which shows the seat tilt module and the resting part which concerns on another Example. It is a drawing which illustrated the operating state of the seat tilt module at the time of operation of the standing auxiliary chair which concerns on one Example. It is a drawing which illustrated the operating state of the seat tilt module at the time of operation of the standing auxiliary chair which concerns on one Example. It is a perspective view which shows the supporter which concerns on another Example. It is a bottom view which shows the supporter of the 1st state which concerns on another Example. It is a bottom view which shows the supporter of the 2nd state which concerns on another Example. It is the bottom perspective view of the seat tilt module and the resting part which shows the state which the fixing device which concerns on another Example is fixed to the side frame. It is the bottom perspective view of the seat tilt module and the resting part which shows the state which the fixing device which concerns on another Example is released from the side frame. It is a partially enlarged view which shows the fixed state of the fixing device seen from the inside which concerns on another Example. It is a partially enlarged view which shows the fixed state of the fixing device seen from the outside which concerns on another Example. It is a partially enlarged view which shows the fixing release state of the fixing device seen from the inside which concerns on another Example. It is a partially enlarged view which shows the fixing release state of the fixing device seen from the outside which concerns on another Example. It is a bottom view which shows the supporter of the 1st state which concerns on still another Example. It is a bottom view which shows the supporter of the 2nd state which concerns on still another Example.

Hereinafter, the details will be described with reference to the drawings attached to the present embodiment. However, the scope of the idea of the invention of the present embodiment is determined from the matters disclosed in the present embodiment, and the idea of the invention of the present embodiment adds, deletes, or changes components to the proposed embodiment. It shall include variations of implementation such as. In the description of the drawings, the same members are numbered the same.

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

<Structure of standing auxiliary chair 1 including a plurality of frames and wheels>

FIG. 1 is a perspective view showing an upright auxiliary chair according to the present invention, and FIG. 2 is a perspective view showing a seat tilt module and a seating portion according to an embodiment.

With reference to FIGS. 1 and 2, the upright auxiliary chair 1 according to an embodiment of the present invention can include a chair body 10 formed of a plurality of frames 111, 112, 115. A plurality of wheels 210 and 220 are 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 and 220.

The plurality of frames 111, 112, 115 may include support frames 111, 112 on which the wheels 210, 220 are mounted.

The pair of support frames 111 and 112 may be provided, and the pair of support frames 111 and 112 includes a first support frame 111 on which the auxiliary rotary wheels 210 are mounted and a second support frame on which the main rotary wheels 220 are mounted. 112 can be included. The main rotary wheel 220 is provided with power for driving the standing auxiliary chair 1. The power is provided by a motor, for example. As another example, the power may be provided by the power of the user (human power). On the other hand, the auxiliary rotary wheel 210 may be used for the purpose of switching the direction. For this purpose, the auxiliary rotary wheel 210 is rotatably coupled to the first support frame 111.

The standing auxiliary chair 1 may include a handle 113 that extends from the second support frame 112 and can be gripped by the user. When the main rotary wheel 220 is located below the second support frame 112 with the second support frame 112 as the center, the handle 113 is formed on the upper side of the second support frame 112.

The plurality of frames 111, 112, 115 may further include side frame 115, 115'that interconnects the first support frame 111 and the second support frame 112.

In this embodiment, a pair of side frames 115 and 115'provided in the standing auxiliary chair 1 is provided. That is, the standing auxiliary chair 1 can include a side frame 115 provided on one side surface of the chair body 10 and a side frame 115'provided on the other side surface of the chair body 10. The pair of side frames 115 and 115'have the same configuration as each other. Therefore, for convenience of explanation, the side frame 115 provided on one side of the chair body 10 will be described, and the description of the second side frame 115'provided on the other side surface of the chair body 10 will be omitted. ..

The side surface frame 115 can include a second side surface frame 117 that connects the first support frame 111 and the substantially center of the second support frame 112. The side surface frame 115 may further include a first side surface frame 116 that connects the first support frame 111 and the upper side of the second support frame 112. The first side surface frame 116 is arranged above the second side surface frame 117. Further, the side surface frame 115 may further include a third side surface frame 118 that connects the lower side of the first support frame 111 and the second support frame 112.

The plurality of frames 111, 112, 115 may further include a connecting frame (not shown) that connects the side frame 115 on one side and the side frame 115'on the other side. The connecting frame can interconnect the third side frame 117 on one side and the third side frame 117'on the other side. Further, a plurality of the connecting frames are provided, and the plurality of connecting frames can interconnect the side frame 115 on one side and the side frame 115'on the other side.

In this embodiment, the connecting frame can be omitted. Then, the backrest portion 140, which will be described later, can replace the function of the connecting frame.

The chair body 10 can further include a backrest portion 140 on which the user can hold his / her back. The backrest 140 is configured to provide a predetermined cushion so that it can be comfortably held. Further, the backrest portion 140 is mounted in a state of being perpendicular to a seat (not shown) or in a state of being tilted rearward. To this end, the backrest 140 is arranged in the plurality of frames 111, 112, 115 behind the seat tilting module 500 for manipulating the movement and tilting of the seat. The backrest portion 140 may be provided with a cotton material as an example. A more detailed description of the seat tilt module 500 will be described later.

The chair body 10 can further include a footrest portion 180 for supporting the foot of the user seated on the seat.

A resting portion 150 for supporting the seat tilt module 500 is installed between the side frame 115 on one side and the side frame 115'on the other side. That is, the anchoring portion 150 can interconnect the side frame 115 on one side and the side frame 115'on the other side.

A seat for the user to sit on is positioned on the resting portion 150. Further, the seat tilt module 500 that assists the user sitting on the seat to stand up and sit is arranged between the seat and the seating portion 150.

The anchoring portion 150 can include a fixed frame 151 arranged between the side frame 115 on one side and the side frame 115'on the other side, respectively. A plurality of the fixed frames 151 may be provided. Further, the plurality of fixed frames 151 are arranged so as to be adjacent to the second side surface frame 117 and the three side surface frames 118, respectively. Specifically, the plurality of fixed frames 151 can include the first to fourth fixed frames 151a, 151b, 151c, 151d. The first fixed frame 151a and the second fixed frame 151b are arranged so as to be adjacent to the pair of second side surface frames 117 and 117', respectively. Further, the third fixed frame 151c and the fourth fixed frame 151d are arranged so as to be adjacent to each of the pair of third side surface frames 118 and 118'.

The anchoring portion 150 may further include a fixing portion 160 that fixes each of the plurality of fixing frames 151 to adjacent side frame 117, 117', 118, 118'. The fixing portion 160 can interconnect the fixed frame 151 and the side frame adjacent to the fixed frame 151. Then, the fixing portion 160 is screwed to each of the fixed frame 151 and the side frame adjacent to the fixed frame 151.

The anchoring portion 150 may include a connecting frame 152 that connects any one of the plurality of fixed frames with another. The connecting frame 152 can have a substantially "X" shape. As an example, the connecting frame 152 can have a shape in which one frame and another frame intersect each other. Then, the intersecting inner surfaces of the one frame and the other frame are hinged and folded or unfolded. As an example, when one frame and the other frame of the connecting frame 152 are folded, the connecting frame 152 can have a substantially "I" shape. At this time, it can be understood that the chair body 10 is folded. As a result, the user can more easily carry the standing auxiliary chair 1. As another example, when one frame of the connecting frame 152 and the other frame rotate in directions away from each other, the connecting frame 152 can have a substantially "X" shape. At this time, it can be understood that the chair body 10 is expanded (or installed) so that the user can sit down.

On the other hand, a plurality of the connecting frames 152 may be provided. As an example, the connecting frame 152 can include a first connecting frame 152a and a second connecting frame 152b. The first connecting frame 152a can connect the first fixed frame 151a and the fourth fixed frame 151d. Further, the second connecting frame 152b can connect the second fixed frame 151b and the third fixed frame 151c.

The connecting frame 152 can include the first connecting frame 152a and the second connecting frame 152b, and the third connecting frame 152c and the fourth connecting frame 152d that are separately arranged. The third connecting frame 152c can connect the first fixed frame 151a and the fourth fixed frame 151d. Then, the fourth connecting frame 152d can connect the second fixed frame 151b and the third fixed frame 151c.

The first connecting frame 152a and the second connecting frame 152b are the third connecting frame 152c and the fourth connecting frame 152c in the front-rear direction of the pair of second side frame frames (or the direction in which the pair of second side frame frames are extended long). It is arranged in parallel with the connecting frame 152d.

The chair body 10 can further include a supporter 300 for installing the seat tilt module 500 in the anchoring portion 150. A plurality of the supporters 300 are provided. Then, the plurality of supporters 300 can be attached to the anchoring portion 150 to support the seat tilt module 500.

The seat tilt module 500 is detachably attached to the supporter 300. As an example, the seat tilt module 500 is screwed to the supporter 300. Since the seat tilt module 500 is detachably mounted on the supporter 300, there is an advantage that the maintenance of the seat tilt module 500 is easy. The seat tilt module 500 is welded to the supporter 300 and integrally fastened. In this case, although there is a problem that it is difficult to separate the two, it is possible to obtain a firm fastening effect between the two.

The chair body 10 may include a seat (not shown) provided so that the user can sit on it. The seat is provided as a seat on which the user can sit by providing a predetermined cushion so that the user can sit comfortably. The sheet is located on the sheet tilt module 500. The chair body 10 can provide a wheelchair body.

<Seat tilt module 500 for controlling the movement and tilt of the seat>

The chair body 10 is provided in a modular form and may further include a seat tilt module 500 to which the seat is mounted. The seat tilt module 500 can provide the seat with an ascending force and a rotational force as auxiliary forces. As an example, the horizontal seat can be lifted upward by the seat tilt module 500 and at the same time tilted forward. Thereby, the seat (of course, a state in which the user is sitting on the seat can be easily assumed) is provided with the standing assist force for the user to stand from the seat tilt module 500.

That is, the seat in the horizontal state is moved upward by the seat tilt module 500 toward the front of the chair body 10 and stands up. At this time, the seat can be tilted forward while being moved forward and upward by the seat tilt module 500. Therefore, the direction in which the user seated on the seat stands up coincides with the direction in which the seat 500 tilts while moving, so that the user can easily stand up. From the user's point of view, the user can easily stand up by the standing assist force generated from the seat tilt module 500.

On the contrary, in the state where the seat is moved forward and upward, the seat tilt module 500 can move the seat downward toward the rear of the chair body 10. The seat can return to a horizontal state in the process of being moved downward toward the rear. At this time, since the direction in which the user sits on the seat coincides with the direction in which the seat tilt module 500 moves the seat rearward, the user can stably sit on the seat.

The seat tilt module 500 can include a seat control device 600 that adjusts the forward and backward movement of the seat. By operating the seat control device 600, the seat tilt module 500 can move the seat in the horizontal state forward and upward. On the contrary, the seat control device 600 is operated with the weight placed on the seat. At this time, the seat tilt module 500 restores the upright seat to the horizontal state while moving it backward and downward.

In this embodiment, the seat control device 600 is described as one configuration included in the seat tilt module 500. On the other hand, in another embodiment, the seat control device 600 can be omitted depending on the type and product specifications of the gas cylinder 540 that is the driving means of the seat tilt module 500. As an example, the seat control device 600 may be mounted at another position by a method such as a button type instead of a lever. As another example, when the seat control device 600 is omitted, the driving means of the seat tilt module 500 compresses the gas cylinder 540 when an external force is applied to the seat, and the entire gas cylinder 540 is compressed. The length is reduced. On the contrary, when no external force is applied to the sheet, the entire length of the gas cylinder 540 is restored.

The seat tilt module 500 can further include a standing assist force adjusting device 550 that adjusts the standing assisting force applied to the seat. The standing assist force adjusting device 550 is achieved by setting the angle (α) of the gas cylinder 540 in various ways. The fixing plate 520 arranged on the anchoring portion 150 is formed with an opening for installing the standing assist force adjusting device 550. The opening 521 is arranged at the rear portion of the fixing plate 520. Then, the standing assist force adjusting device 550 is installed so as to be movable in the vertical direction with respect to the fixing plate 520 forming the opening 521. At least a part of the standing assist force adjusting device 550 is inserted into the opening 521. When the standing assist force adjusting device 550 is installed in the fixing plate 520 in a state of being inserted into the opening 521, the rotation center of the gas cylinder 540 can be lowered, so that the more compact seat tilt module 500 can be used. There is an advantage that design is possible.

The angle (α) of the gas cylinder is adjusted by the standing assist force adjusting device 550. More precisely, the angle (α) of the gas cylinder means an inclined state of the gas cylinder with respect to the fixed plate (520 of FIG. 2) in a state where the rotating plate (510 of FIG. 2) is upright. Can be done.

The ascending force and rotational force applied to the seat are adjusted according to the angle (α) of the gas cylinder. That is, the force applied perpendicularly to the seat by the seat tilt module 500 (hereinafter, vertical force) is variable. As the angle (α) of the gas cylinder approaches 90 °, the normal force provided to the seat increases. On the contrary, as the angle (α) of the gas cylinder approaches 0 °, the normal force applied to the seat tilt module 500 becomes smaller. As an example, the heavier the person, the greater the vertical force can be increased by adjusting the angle (α) of the cylinder. That is, there is an advantage that a stable standing motion can be provided to the user by setting the angle (α) of the cylinder to be different based on the physical condition of the user.

The standing assist force is adjusted by the above actions.

<Detailed configuration of seat tilt module 500>

FIG. 2 is a perspective view showing the seat tilt module and the resting portion according to the embodiment, and FIGS. 3 and 4 show the operating state of the seat tilt module when the standing auxiliary chair according to the embodiment is operating. It is a drawing.

With reference to FIGS. 2 to 4, the seat tilt module 500 can include a rotating plate 510 on which the seat is mounted. The sheet is mounted on the upper surface of the rotating plate 510. The rotating plate 510 can have a plate shape as an example. The rotating plate 510 can be moved (or stood up) forward from the horizontal state by the four-bar link 530 described below. Then, in the process in which the rotary plate 510 is erected, the rotary plate 510 can be tilted forward. Further, the rotating plate 510 can be moved downward toward the rear by the four-section link 530 in an upright state. The rotary plate 510 can return to the horizontal state while the rotary plate 510 is moved downward toward the rear.

The seat tilt module 500 may further include a fixing plate 520 located above the anchoring portion 150. The fixing plate 520 is supported by the supporter 300. Further, the fixing plate 520 is separably coupled to the supporter 300. As an example, the supporter 300 is screwed to the supporter 300. It should be noted that the present invention is not limited to this, and can be firmly integrated by welding. On the other hand, the 4-section link 530 is connected to the fixing plate 520. Therefore, the rotating plate 510 can move forward or backward with respect to the fixed plate 520.

The seat tilt module 500 can further include the four-bar link 530 connecting the rotating plate 510 and the fixing plate 520. A pair of the four-section links 530 is provided. Then, the pair of four-bar links 530 may be provided on both side surfaces of the rotating plate 510 and the fixing plate 520, respectively.

The four-section link 530 is a third and fourth link 533 hinged between the first link 531 which is a rotary link, the second link 532 which is a fixed link, and the first and second links 531 and 532. 534 can be included. As an example, the first and second links 531, 532, 533, and 534 can have a plate shape having a "U" cross section.

The first link 531 is fixed to the side surface of the front end of the rotating plate 510. The second link 532 is fixed to the side surface of the rear end of the fixing plate 520. When the rotary plate 510 is viewed with reference to the horizontal state, the first link 531 is positioned so as to be perpendicular to the rotary plate 510 downward.

When the rotating plate 510 is viewed with reference to the horizontal state, the second link 532 is positioned so as to be perpendicular to the fixed plate 520 upward.

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

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

The seat tilt module 500 may further include the gas cylinder 540, which is hinged between the lower part of the rotating plate 510 and the upper part of the fixing plate 520 to provide driving force to the four-bar link 530. The gas cylinder 540 is hinged between the upper part of the first link 531 and the lower part of the second link 532 as a cylinder in which a predetermined gas pressure is provided to the internal compression space, and is connected to the fourth link 530. It can provide driving force. The gas cylinder 540 may include a cylinder body 541 hinged to the bottom of the rotating plate 510 and a piston 542 housed inside the cylinder body. The piston 542 is connected to the standing assist force adjusting device 550.

The gas cylinder 540 is connected to the seat control device 600 described below. By pulling the seat control lever 620 of the seat control device 600 described later, the size of the compressed space inside the gas cylinder 540 changes according to a predetermined gas pressure. At this time, if the force acting on the outside is smaller than the gas pressure, the total length of the gas cylinder 540 increases due to the increase in the compression space. On the contrary, when the force acting on the outside is larger than the gas pressure, the compression space is reduced and the length of the entire gas cylinder 540 is reduced. The weight of the load can be understood as the weight of the user seated on the seat.

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

The standing auxiliary chair 1 of this embodiment can be used so as to match the weight and body shape of the user by operating the seat control lever 620 to adjust the pressure of the gas cylinder 540. Further, even if a gas cylinder 540 having the same pressure is used, the standing assist force adjusting device 550 is used to adjust the angle (α) and stroke of the gas cylinder to assist the standing up according to the weight and body shape of the user. Can provide power.

<Operating state of seat tilt module 500>

As shown in FIG. 3, when the user is seated on the seat, the rotating plate 510 and the fixing plate 520 can maintain the horizontal state. At this time, the gas cylinder 540 maintains the standing angle (α') set with respect to the fixing plate 520.

When the user pulls and slightly moves the seat control lever 620, the gas cylinder can be moved from FIG. 3 to FIG. 4 while increasing the overall length of the gas cylinder 540. At this time, with the second link 532 fixed, the first, third, and fourth links 531, 533, and 534 rotate about their respective hinges. As a result, the rotating plate 510 connected to the first link 531 can move upward and at the same time tilt forward. Then, the rotating plate 510 performs an upright assisting operation in which the seat pushes up the user's buttocks. After that, as shown in FIG. 4, the gas cylinder 540 is changed to the standing angle (α) set with respect to the fixing plate 520.

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 is maintained as it is due to the characteristics of the gas cylinder 540. Therefore, the user can maintain the standing angle level of the seat tilt module 500 at a desired position during the standing or sitting operation.

<Configuration and operating state of the standing assist force adjusting device 550>

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

With reference to FIGS. 4 to 6, the cylinder angle (α) between the gas cylinder 540 and the fixing plate 520 is set by the standing assist force adjusting device 550. That is, as shown in FIG. 4, the virtual extension line l1 extended in the length direction of the gas cylinder 540 and the virtual extension line l1 extended in the length direction of the fixing plate 520 by the standing assist force adjusting device 550. The angle between the extension line l2 and the cylinder can be defined as the angle (α) of the cylinder.

The standing assist force adjusting device 550 can include an angle adjusting case 551 coupled to the fixing plate 520. Specifically, the angle adjusting case 551 is installed on the fixing plate 520 having the opening 552. At least a part of the angle adjusting case 551 is installed so as to penetrate the opening 552. The angle adjusting case 551 can have a shape with an open top. As an example, the cross section of the angle adjusting case 551 is formed in a "U" shape. The angle adjusting case 551 is separably coupled to the fixing plate 520. As an example, the angle adjusting case 551 is 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 includes an angle adjusting opening 552 for setting the angle (α) of the cylinder between the gas cylinder 540 and the fixing plate 520, and a large number of grooves 552a, 552b, 552c, 552d, 552e. 552f and 552g are formed. The large number of grooves 552a to 552g include a first groove 552a located at the uppermost side (on the drawing), a fourth groove 552d located at the center, and a seventh groove 552g located at the lowermost side (on the drawing). Can include. Further, the large number of grooves 552a to 552g include the second groove 552b and the third groove 552c located between the first groove 552a and the fourth groove 552d, and the fourth groove 552d and the seventh groove 552g. A fifth groove 552e and a sixth groove 552f located between them can be included. In order to make the angle (α) of the cylinder variable, the angle adjusting opening 552 is formed so as to be elongated in a direction different from the extension direction of the virtual extension line l2 formed in the fixing plate 520. Will be done. That is, the angle adjusting opening 552 sets the distance l3 between the fixed shaft 544 of the cylinder body 541 and the fixed shaft 543 of the piston 542 on the virtual extension line l1 formed in the gas cylinder 540 as the fixed shaft 544 of the cylinder body 541. It is formed by being extended long in the arc direction centered on.

A large number of grooves 552a, 552b, 552c, 552d, 552e, 552f, 552g are formed at set intervals along the direction in which the angle adjusting opening 552 is extended. A fixed shaft 543 coupled to the piston 542 of the gas cylinder 540 is locked to any one of the large number of grooves 552a, 552b, 552c, 552d, 552e, 552f, 552g, and the angle (α) of the cylinder is determined. Is set. The large number of grooves 552a to 552g can have a groove shape corresponding to the fixed shaft 543. For example, the fixed shaft 543 can have a circular cross section. The large number of grooves 552a to 552g can have a round shape so as to correspond to the circular shape of the fixed shaft 543.

The standing assist force adjusting device 550 is connected to the fixed shaft 543 and may further include an angle adjusting lever 560 for operating the angle (α) of the cylinder.

The angle adjusting lever 560 can include a lever body 561. As an example, the lever body 561 can have an appearance extended in a direction parallel to the direction in which the angle adjusting opening 552 is extended.

The angle adjusting lever 560 can further include a shaft coupling portion 562 that couples with a fixed shaft 543 formed at one end of the piston 542. The shaft coupling portion 562 is formed at one end of the lever body 561.

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

When the user applies an external force to the lever body 561 in the direction opposite to the direction of gravity by using the lever handle 563, the angle (α) of the cylinder decreases. Specifically, by providing the lever body 561 with an external force in a direction opposite to the direction of gravity, the fixed shaft 543 is located above the currently locked groove among the large number of grooves 552a to 552g. Locked in the groove. As an example, when the lever handle 563 is moved upward while the fixed shaft 543 is currently locked to the third groove 552c, the fixed shaft 543 is moved to either the first groove 552a or the second groove 552b. Locked in one. By moving the fixed shaft 543 upward, it is formed between the virtual extension line l1 formed in the extension direction of the gas cylinder 540 and the virtual extension line l2 formed in the extension direction of the fixed plate 520. The angle (α) of the cylinder is reduced. As a result, the power of the gas cylinder 540 provided to the rotary plate 510 is reduced.

On the contrary, when the rotating plate 510 is lifted by the user when the seat or the rotating plate 510 is not loaded (or the user is not resting), the fixed shaft 543 may move upward. it can. At this time, the fixed shaft 543 is released from the groove. Then, when the rotating plate 510 moves to the original position, the fixed shaft 543 can move downward due to its own weight. At this time, the fixed shaft 543 is locked in the groove located below.

For example, in a state where the fixed shaft 543 is locked in the third groove 552c, the rotating plate 510 can be lifted and then moved to the original position again. At this time, the fixed shaft 543 is locked to any one of the fourth groove 552d and the fifth groove 552e. That is, the fixed shaft 543 can move downward. By moving the fixed shaft 543 downward, it is formed between the virtual extension line l1 formed in the extension direction of the gas cylinder 540 and the virtual extension line l2 formed in the extension direction of the fixed plate 520. The angle (α) of the cylinder is increased. As a result, the power of the gas cylinder 540 provided to the rotary plate 510 is increased. Of course, the user can also move the lever handle 563 in the direction of gravity (the direction up and down in the drawing) to increase the angle (α) of the cylinder.

<Configuration of standing lock device 570>

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

With reference to FIGS. 7-9, the seat tilt module 500 can include an upright lock device 570 for preventing the rotating plate 510 from being arbitrarily upright. By fixing the upper end portion of the rotating plate 510 by the standing lock device 570, it is possible to prevent the rotating plate 510 from being arbitrarily raised. This allows the user to safely transport or store the seat tilt module 500.

The upright locking device 570 can include the angle adjusting case 551 and a locking case 571 provided on the upper side of the fixing plate 520. The lock portion case 571 can have a hexahedral shape with a substantially upper side open. The upright lock device 570 can include a lock screw 572 that penetrates the lock case 571.

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

That is, when the lock portion screw 572 rotates in one direction, the lock portion screw 572 can move in the direction of being inserted into the lock portion case 571. Then, when the lock portion screw 572 rotates in the other direction, the lock portion screw 572 can move in the direction of being inserted and released from the lock portion case 571.

The upright lock device 570 can further include a lock portion rotating member 573 that is rotatably coupled to the lock portion case 571. The level at which the lock portion rotating member 573 rotates in conjunction with the contact with the lock portion screw 572 is determined. The lock portion rotating member 573 is formed in a bar shape that extends vertically (on the drawing).

The lock portion rotating member 573 may be provided with a lock portion rotating shaft 574 that is rotatably coupled to the lock portion case 571. The lock portion rotation shaft 574 may be provided substantially at the center of the lock portion rotation member 573. The lock portion rotating member 573 can be easily rotated with respect to the lock portion case 571 by the lock portion rotating shaft 574. On the other hand, the lock portion screw 572 can come into contact with the other end of the lock portion rotating member 573. Then, by moving the lock portion screw 572, the lock portion rotating member 573 that comes into contact with the lock portion screw 572 is interlocked.

The lock portion rotating member 573 can further include a lock portion locking projection 575 that can determine whether or not to fix the rotating plate 510 according to the rotation level. The lock portion locking projection 574 is formed so as to project from one end of the lock portion rotating member 572 toward the rotating plate 510. When the rotary plate 510 is in the horizontal state, the lock portion locking projection 575 is locked to the rotary plate 510. For this purpose, the rotating plate 510 may be provided with a locking hole 510a to which the locking projection 575 can be locked. When the lock portion locking projection 575 is locked to the rotary plate 510, the rotary plate 510 is fixed without standing up.

On the other hand, the lock portion screw 572 can move in the direction of penetrating the lock portion case 571. At this time, the lock portion screw 572 can come into contact with the other end of the lock portion rotating member 573. Then, the lock portion screw 572 can move in a direction of penetrating the lock portion case 571 to provide an external force to the lock portion rotating member 573. As a result, the locking (or fixing) of the rotating plate 510 by the locking portion locking projection 575 is released.

The upright locking device 570 can include a locking portion elastic member 576 that interconnects the locking portion case 571 and the locking portion rotating member 573. The lock portion elastic member 576 can be located above the central portion of the lock portion rotating member 573. When the elastic member 576 interrupts the external force of the lock portion rotating member 573 by the lock portion screw 572, the lock portion rotating member 573 is restored.

That is, the lock portion screw 572 can be inserted into the lock portion case 571 to control the rotation of the lock portion rotating member 573. When the lock portion screw 572 rotates in one direction, the lock portion screw 572 can move toward the inside of the lock portion case 571. Then, the lock portion screw 572 can be moved to the inside of the lock portion case 571 in conjunction with the lock portion case 571. As a result, the lock portion rotating member 573 can rotate about the lock portion rotating shaft 574. Then, the lock portion locking projection 575 can move in the direction opposite to the direction in which the lock portion screw 572 moves.

On the other hand, when the lock portion screw 572 rotates in the other direction and is moved toward the outside of the lock portion case 571, the upper portion of the lock portion rotating member 573 is moved by the elastic member 576 to the lock portion screw 572. Can move in the direction in which it moves. Then, the lock portion locking projection 575 is inserted into the groove 510a formed in the rotary plate 510, and the rotary plate 510 can be fixed.

According to the above configuration, when the seat tilt module 500 and the standing auxiliary chair 1 are separated, each member can be conveniently transported and stored in a state where the rotating plate 510 does not move. Similarly, when the seat tilt module 500 and the standing auxiliary chair 1 are combined, the rotating plate 510 can be moved according to the movement of the user so that the user can conveniently use the standing auxiliary chair according to the embodiment. it can.

[Another Example: Standing Auxiliary Chair Includes Seat Tilt Module Applicable to Various Chairs]

<Structure of standing auxiliary chair 1 including a plurality of frames and wheels>

FIG. 10 is a perspective view showing an upright auxiliary chair according to the present invention, and FIG. 2 is a perspective view showing a seat tilt module and a seating portion according to an embodiment.

With reference to FIGS. 10 and 11, the upright auxiliary chair 1 according to an embodiment of the present invention can include a chair body 10 formed of a plurality of frames 111, 112, 115. A plurality of wheels 210 and 220 are 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 and 220.

The plurality of frames 111, 112, 115 may include support frames 111, 112 on which the wheels 210, 220 are mounted.

The pair of support frames 111 and 112 may be provided, and the pair of support frames 111 and 112 includes a first support frame 111 on which the auxiliary rotary wheels 210 are mounted and a second support frame on which the main rotary wheels 220 are mounted. 112 can be included. The main rotary wheel 220 is provided with power for driving the standing auxiliary chair 1. The power is provided by a motor, for example. As another example, the power may be provided by the power of the user (human power). On the other hand, the auxiliary rotary wheel 210 may be used for the purpose of switching the direction. For this purpose, the auxiliary rotary wheel 210 is rotatably coupled to the first support frame 111.

The standing auxiliary chair 1 may include a handle 113 that extends from the second support frame 112 and can be gripped by the user. When the main rotary wheel 220 is positioned below the second support frame 112 with the second support frame 112 as the center, the handle 113 is formed above the second support frame 112.

The plurality of frames 111, 112, 115 may further include side frame 115, 115'that interconnects the first support frame 111 and the second support frame 112.

In this embodiment, a pair of side frames 115 and 115'provided in the standing auxiliary chair 1 is provided. That is, the standing auxiliary chair 1 can include a side frame 115 provided on one side surface of the chair body 10 and a side frame 115'provided on the other side surface of the chair body 10. The pair of side frames 115 and 115'have the same configuration as each other. Therefore, for convenience of explanation, the side frame 115 provided on one side of the chair body 10 will be described, and the description of the second side frame 115'provided on the other side surface of the chair body 10 will be omitted. ..

The side surface frame 115 can include a second side surface frame 117 that connects the first support frame 111 and the substantially center of the second support frame 112. The side surface frame 115 may further include a first side surface frame 116 that connects the first support frame 111 and the upper side of the second support frame 112. The first side surface frame 116 is arranged above the second side surface frame 117. Further, the side surface frame 115 may further include a third side surface frame 118 that connects the lower side of the first support frame 111 and the second support frame 112.

The plurality of frames 111, 112, 115 may further include a connecting frame (not shown) that connects the side frame 115 on one side and the side frame 115'on the other side. The connecting frame can interconnect the third side frame 117 on one side and the third side frame 117'on the other side. Further, a plurality of the connecting frames are provided, and the plurality of connecting frames can interconnect the side frame 115 on one side and the side frame 115'on the other side.

In this embodiment, the connecting frame can be omitted. Then, the backrest portion 140, which will be described later, can replace the function of the connecting frame.

Between the side frame 115 on one side and the side frame 115'on the other side, a seating portion 150 for supporting a seat tilting module 500, which will be described later, is installed. That is, the anchoring portion 150 can interconnect the side frame 115 on one side and the side frame 115'on the other side.

The chair body 10 may include a seat (not shown) provided so that the user can sit on it. The seat (not shown) is configured as a seat on which the user can sit, providing a predetermined cushion so that the user can sit comfortably. Further, the seat is positioned on the seat tilt module 500.

The chair body 10 further includes a backrest 140 that allows the user to lean back. The backrest 140 is configured to provide a predetermined cushion so that it can be comfortably held. Further, the backrest portion 140 is mounted in a state of being perpendicular to the seat or in a state of being tilted rearward. For this purpose, the backrest portion 140 is arranged behind the seat tilt module 500 in the plurality of frames 111, 112, 115. The backrest 140 may be provided with a cotton material as an example.

The chair body 10 can further include a footrest portion 180 for supporting the foot of the user seated on the seat.

The chair body 10 is provided in a modular form and may further include a seat tilt module 500 to which the seat is mounted. The seat tilt module 500 can provide the seat with an ascending force and a rotational force as auxiliary forces. As an example, the horizontal seat can be lifted upward by the seat tilt module 500 and at the same time tilted forward. Thereby, the seat (of course, a state in which the user is sitting on the seat can be easily assumed) is provided with the seat and the standing assist force for standing the user from the seat tilt module 500.

That is, the seat in the horizontal state is moved upward by the seat tilt module 500 toward the front of the chair body 10 and stands up. At this time, the seat can be tilted forward while being moved forward and upward by the seat tilt module 500. Therefore, the direction in which the user seated on the seat stands up coincides with the direction in which the seat 500 tilts while moving, so that the user can easily stand up. From the user's point of view, the user can easily stand up by the standing assist force generated from the seat tilt module 500.

On the contrary, in the state where the seat is moved forward and upward, the seat tilt module 500 can move the seat downward toward the rear of the chair body 10. The seat can return to a horizontal state in the process of being moved downward toward the rear. At this time, since the direction in which the user sits on the seat coincides with the direction in which the seat tilt module 500 moves the seat rearward, the user can stably sit on the seat.

The seat tilt module 500 can include a seat control device 600 that adjusts the forward and backward movement of the seat. By operating the seat control device 600, the seat tilt module 500 can move the seat in the horizontal state forward and upward. On the contrary, the seat control device 600 is operated with the weight placed on the seat. At this time, the seat tilt module 500 restores the upright seat to the horizontal state while moving it backward and downward.

In this embodiment, the seat control device 600 is described as one configuration included in the seat tilt module 500. On the other hand, in another embodiment, the seat control device 600 can be omitted depending on the type of the driving means (gas cylinder) of the seat tilt module 500. As an example, when the seat control device 600 is omitted, the driving means of the seat tilt module 500 is compressed when an external force is applied to the seat, and the total length of the driving means is reduced. Is done. On the contrary, when no external force is applied to the seat, the entire length of the driving means is restored.

The seat tilt module 500 can further include a standing assist force adjusting device 550 that adjusts the standing assisting force applied to the seat. The standing assist force adjusting device 550 is achieved by setting the angle of the gas cylinder.

The fixing plate is formed with an opening for installing the standing assist force adjusting device. The opening is arranged at the rear portion of the fixing plate. Then, the standing assisting force adjusting device is installed so as 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 is inserted into the opening. When the standing assist force adjusting device is installed on the fixing plate while being inserted into the opening, the rotation center of the gas cylinder can be lowered, so that a more compact seat tilt module 500 can be designed. There is an advantage.

The standing assist force adjusting device 550 adjusts the angle (α or α') of the gas cylinder (the angle changes depending on the contracted or extended state of the gas cylinder). More precisely, the angle (α) can mean an inclined state of the gas cylinder with respect to the fixing plate (520 of FIG. 2) in a state where the rotating plate (510 of FIG. 2) is upright. The angle (α) of the gas cylinder can be understood with reference to FIG.

The ascending force and rotational force applied to the seat are adjusted according to the angle (α) of the gas cylinder. That is, the force applied perpendicularly to the seat by the seat tilt module 500 (hereinafter, vertical force) is variable. As the angle (α) of the cylinder approaches 90 °, the normal force provided to the seat increases. On the contrary, as the angle (α) of the gas cylinder approaches 0 °, the normal force applied to the seat tilt module 500 becomes smaller. As an example, the heavier the person, the greater the vertical force can be increased by adjusting the angle (α) of the cylinder. That is, there is an advantage that a stable standing assist force can be provided to the user by setting the angle (α) of the cylinder to be different based on the physical condition of the user.

<Structure of the resting portion 150 for resting the seat tilt module 500>

The chair body 10 can further include a resting portion 150 on which the seat tilt module 500 is mounted. A seat for the user to sit on is positioned on the resting portion 150. Further, the seat tilt module 500 that assists the user sitting on the seat to stand up and sit is arranged between the seat and the seating portion 150.

The anchoring portion 150 can include a fixed frame 151 arranged between the side frame 115 on one side and the side frame 115'on the other side, respectively. A plurality of the fixed frames 151 may be provided. Further, the plurality of fixed frames 151 are arranged so as to be adjacent to the second side surface frame 117 and the three side surface frames 118, respectively. Specifically, the plurality of fixed frames 151 can include the first to fourth fixed frames 151a, 151b, 151c, 151d. The first fixed frame 151a and the second fixed frame 151b are arranged so as to be adjacent to the pair of second side surface frames 117 and 117', respectively. Further, the third fixed frame 151c and the fourth fixed frame 151d are arranged so as to be adjacent to each of the pair of third side surface frames 118 and 118'.

The anchoring portion 150 may further include a fixing portion 160 that fixes each of the plurality of fixing frames 151 to adjacent side frame 117, 117', 118, 118'. The fixing portion 160 can interconnect the fixed frame 151 and the side frames 117, 117', 118, 118'adjacent to the fixed frame 151. Then, the fixing portion 160 is screw-coupled to the fixing frame 151 and the side frames 117, 117', 118, 118' adjacent to the fixing frame 151, respectively.

The anchoring portion 150 may include a connecting frame 152 that connects any one of the plurality of fixed frames with another. The connecting frame 152 can have a substantially "X" shape.

As an example, the connecting frame 152 can have a shape in which one frame and another frame intersect each other. Then, the intersecting inner surfaces of the one frame and the other frame are hinged and folded or unfolded. As an example, when one frame and the other frame of the connecting frame 152 are folded, the connecting frame 152 can have a substantially "I" shape. The state in which the connecting frame 152 is folded can be understood as the chair body 10 being folded.

When the connecting frame 152 is folded, the user can more easily carry the standing auxiliary chair 1. As another example, when one frame of the connecting frame 152 and the other frame rotate in directions away from each other, the connecting frame 152 can have a substantially "X" shape. At this time, it can be understood that the chair body 10 is expanded (or installed) so that the user can sit down.

Briefly explaining the configuration of the connecting frame 152 with reference to FIGS. 17 and 18, a plurality of the connecting frames 152 may be provided. As an example, the connecting frame 152 can include a first connecting frame 152a and a second connecting frame 152b. The first connecting frame 152a can connect the first fixed frame 151a and the fourth fixed frame 151d. Further, the second connecting frame 152b can connect the second fixed frame 151b and the third fixed frame 151c.

The connecting frame 152 can include the first connecting frame 152a and the second connecting frame 152b, and the third connecting frame 152c and the fourth connecting frame 152d that are separately arranged. The third connecting frame 152c can connect the first fixed frame 151a and the fourth fixed frame 151d. Then, the fourth connecting frame 152d can connect the second fixed frame 151b and the third fixed frame 151c.

The first connecting frame 152a and the second connecting frame 152b are the third connecting frame 152c and the fourth connecting frame 152c in the front-rear direction of the pair of second side frame frames (or the direction in which the pair of second side frame frames are extended long). It is arranged in parallel with the connecting frame 152d.

With reference to FIGS. 10 and 11, the chair body 10 can further include a supporter 300 for installing the seat tilt module 500 in the anchoring portion 150. A plurality of the supporters 300 are provided. Then, the plurality of supporters 300 can be attached to the anchoring portion 150 to support the seat tilt module 500.

The supporter 300 is detachably attached to the fixed frames 151a and 151b of the anchoring portion 150. The supporter 300 may be provided so as to be adjustable in length so as to correspond to the width formed between the first fixed frame 151a and the second fixed frame 151b. Therefore, there is an advantage that it can be applied (or compatible) to various types of chairs having the first fixed frame 151a and the second fixed frame 151b, for example, a wheelchair. More detailed contents regarding the length adjusting function of the supporter 300 will be described later.

The seat tilt module 500 is detachably attached to the supporter 300. As an example, the seat tilt module 500 is screwed to the supporter 300. Since the seat tilt module 500 is detachably mounted on the supporter 300, there is an advantage that the maintenance of the seat tilt module 500 is easy. The seat tilt module 500 may be welded to the supporter 300 and integrally fastened. In this case, although there is a problem that it is difficult to separate the two, it is possible to obtain a firm fastening effect between the two.

<Detailed configuration of seat tilt module 500>

12 and 13 are drawings illustrating the operating state of the seat tilt module when the standing auxiliary chair according to the embodiment is operating.

With reference to FIGS. 11 to 13, the seat tilt module 500 can include a rotating plate 510 on which the seat is mounted. The sheet is mounted on the upper surface of the rotating plate 510. The rotating plate 510 can have a plate shape as an example. The rotating plate 510 can be moved (or stood up) forward from the horizontal state by the four-bar link 530 described below. Then, in the process in which the rotary plate 510 is erected, the rotary plate 510 can be tilted forward. Further, the rotating plate 510 can be moved downward toward the rear by the four-section link 530 in an upright state. The rotary plate 510 can return to the horizontal state while the rotary plate 510 is moved downward toward the rear.

The seat tilt module 500 may further include a fixing plate 520 located above the anchoring portion 150. The fixing plate 520 is supported by the supporter 300. Further, the fixing plate 520 is separably coupled to the supporter 300. As an example, the supporter 300 is screwed to the supporter 300. It should be noted that the present invention is not limited to this, and can be firmly integrated by welding. On the other hand, the 4-section link 530 is connected to the fixing plate 520. Therefore, the rotating plate 510 can move forward or backward with respect to the fixed plate 520.

The seat tilt module 500 can further include the four-bar link 530 connecting the rotating plate 510 and the fixing plate 520. A pair of the four-section links 530 is provided. Then, the pair of four-bar links 530 may be provided on both side surfaces of the rotating plate 510 and the fixing plate 520, respectively.

The four-section link 530 is a third and fourth link 533 hinged between the first link 531 which is a rotary link, the second link 532 which is a fixed link, and the first and second links 531 and 532. 534 can be included. As an example, the first and second links 531, 532, 533, and 534 can have a plate shape having a "U" cross section.

The first link 531 is fixed to the side surface of the front end of the rotating plate 510. The second link 532 is fixed to the side surface of the rear end of the fixing plate 520. When the rotary plate 510 is viewed with reference to the horizontal state, the first link 531 is positioned so as to be perpendicular to the rotary plate 510 downward.

When the rotating plate 510 is viewed with reference to the horizontal state, the second link 532 is positioned so as to be perpendicular to the fixed plate 520 upward.

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

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

The seat tilt module 500 may further include the gas cylinder 540, which is hinged between the lower part of the rotating plate 510 and the upper part of the fixing plate 520 to provide driving force to the four-bar link 530. The gas cylinder 540 is hinged between the upper part of the first link 531 and the lower part of the second link 532 as a cylinder in which a predetermined gas pressure is provided to the internal compression space, and is connected to the fourth link 530. It can provide driving force. The gas cylinder 540 may include a cylinder body 541 hinged to the bottom of the rotating plate 510 and a piston 542 housed inside the cylinder body. The piston 542 is connected to the standing assist force adjusting device 550.

The gas cylinder 540 is connected to the seat control device 600 described below. By pulling the seat control lever 620 of the seat control device 600 described later, the size of the compressed space inside the gas cylinder 540 changes according to a predetermined gas pressure. At this time, if the force acting on the outside is smaller than the gas pressure, the total length of the gas cylinder 540 increases due to the increase in the compression space. On the contrary, when the force acting on the outside is larger than the gas pressure, the compression space is reduced and the length of the entire gas cylinder 540 is reduced. The weight of the load can be understood as the weight of the user seated on the seat.

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

The standing auxiliary chair 1 of this embodiment can be used so as to match the weight and body shape of the user by operating the seat control lever 620 to adjust the pressure of the gas cylinder 540. Further, even if a gas cylinder 540 having the same pressure is used, the standing assist force adjusting device 550 is used to adjust the angle (α) and stroke of the gas cylinder to assist the standing up according to the weight and body shape of the user. Can provide power.

<Operating state of seat tilt 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 maintain the horizontal state. At this time, the gas cylinder 540 maintains the standing angle (α') set with respect to the fixing plate 520.

When the user pulls and slightly moves the seat control lever 620, the gas cylinder can be moved from FIG. 12 to FIG. 13 while increasing the overall length of the gas cylinder 540. At this time, with the second link 532 fixed, the first, third, and fourth links 531, 533, and 534 rotate about their respective hinges. As a result, the rotating plate 510 connected to the first link 531 can move upward and at the same time tilt forward. Then, the rotating plate 510 performs an upright assisting operation in which the seat pushes up the user's buttocks. After that, the gas cylinder 540 is changed to the standing angle (α) set with respect to 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 is maintained as it is due to the characteristics of the gas cylinder 540. Therefore, the user can maintain the standing angle level of the seat tilt module 500 at a desired position during the standing or sitting operation.

<Configuration of supporter 300 with variable left and right length>

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

With reference to FIG. 14, the supporter 300 can include a supporter main body 310 on which the seat tilt module 500 is supported, and a supporter auxiliary body 330, 340 that is slidably housed in the supporter main body 310. .. A pair of the supporter auxiliary bodies 330 and 340 is provided. The supporter auxiliary body 330 and 340 can 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 are arranged 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 be slid in the left-right direction (on the drawing) with reference to the center of the supporter main body 310.

When any one of the pair of supporter auxiliary bodies 330 and 340 is separated from the center of the supporter main body 310 by the length of the first setting, the other one is also separated by the length of the first setting. On the contrary, if any one of the pair of supporter auxiliary bodies 330 and 340 is brought closer to the center of the supporter main body by the length of the second setting, the other one is also brought closer by the length of the second setting. .. That is, the pair of supporter auxiliary bodies 330 and 340 can be interlocked with each other and can slide in the horizontal direction (or the length direction) of the supporter main body 310. More detailed contents regarding 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 can include a length fixing screw 370 for fixing the variable length of the supporter 300. Further, the supporter 300 may include one or more through holes 312, 332, 342 formed in the supporter main body 310 and the pair of supporter auxiliary bodies 330, 340 and through which the length fixing screw 370 can penetrate. it can. Specifically, one or more main body through holes 312 are formed in the supporter main body 310. Then, one or more sub-body penetration holes 332 and 342 are formed in each of the pair of supporter auxiliary bodies 330 and 340.

A pair of the length fixing screws 370 are provided. Any one of the pair of length fixing screws 370 is one of the plurality of main body through holes 312 formed in the supporter main body 310 and any one of the plurality of first auxiliary body through holes 332. Can be penetrated. Then, the other one of the pair of length fixing screws 370 is formed in the other one of the plurality of main body through holes 312 formed in the supporter main body 310 and in the plurality of second auxiliary body through holes 342. Any one of them can be penetrated.

The length of the supporter 300 is fixed by the pair of length fixing screws 370 penetrating through holes 312, 332, and 342 formed in the supporter main body 310 and the pair of supporter auxiliary bodies 330 and 340, respectively. Will be done.

<Structure of supporter 300 attached to the seat 150 of the chair body 10>

The supporter 300 can include a supporter mounting portion 350 that is detachably mounted on the fixed frame. Specifically, the supporter mounting portion 350 is bent upward and extended to one end, that is, the outer end portion of each of the pair of supporter auxiliary bodies 330 and 340. As a result, it is possible to secure an inner space of the supporter so that each member can be placed inside. The supporter mounting portion 350 may have a substantially “┐” shape in order to be locked and supported by the fixed frame. The supporter mounting portion 350 can come into contact with the upper surfaces of the fixed frames 151a and 151b.

The supporter mounting portion 350 is screwed to the fixed frames 151a and 151b. Specifically, a mounting hole 351 is formed in the supporter mounting portion 350. Then, fixed holes (not shown) are formed in the fixed frames 151a and 151b corresponding to the mounting holes 351. By inserting bolts (not shown) into the mounting holes 351 and the fixing holes, the supporter 300 is fixed to the side frames 115a and 151b of the chair body 10.

The supporter 300 can further include a supporter connecting portion 360 that connects the supporter mounting portion 350 and the supporter auxiliary bodies 330 and 340. The supporter connecting portion 360 can have a shape that is bent at least once. As an example, the supporter connecting portion 360 can have a substantially "┐" shape.

FIG. 15 is a bottom view showing the supporters in the first state according to one embodiment, and FIG. 16 is a bottom view showing the supporters in the second state according to one embodiment.

With reference to FIGS. 14 to 16, a gear 313 is provided at the center of the supporter main body 310. The gear 313 can have a cylindrical shape as an example, and a main uneven portion 314 is formed around the gear 313. Sub-concavo-convex portions 331 and 341 that intersect the main concavo-convex portion 314 are formed in each of the pair of supporter auxiliary bodies 330 and 340.

Any one of the sub-concavo-convex portions (first sub-concavo-convex portion 331 and the other one sub-concavo-convex portion (second sub-concavo-convex portion 341)) of the pair of supporter auxiliary bodies 330 and 340 can be separated from each other. The sub-concavo-convex portion 331 of any one of the pair of supporter auxiliary bodies 330 and 340 and the other sub-concave-convex portion 341 can face each other, and any of the pair of supporter auxiliary bodies 330 and 340. One sub-concavo-convex portion 331 and the other sub-concavo-convex portion 341 can have the same length as each other. Therefore, one of the pair of supporter auxiliary bodies 330 and 340 is one of the supporter auxiliary bodies 330. When moved in the direction, the other one supporter auxiliary body 340 can move in the opposite direction to the one of the supporter auxiliary bodies 330, so that the user can easily adjust the length of the supporter 300. Therefore, the effect that the seat tilt module 500 can be easily attached to a chair or a wheelchair having various widths is obtained.

<Structure of the supporter fixing device 400 for attaching the supporter 300 to the attachment portion 150>

FIG. 17 is a bottom perspective view of the seat tilt module and the anchoring portion showing a state in which the supporter fixing device according to one embodiment is fixed to the side frame, and FIG. 18 is a bottom perspective view of the supporter fixing device according to one embodiment on the side frame. It is the bottom perspective view of the seat tilt module and the resting part which shows the state which the fixing is released.

With reference to FIGS. 14-18, the supporter 300 can further include a supporter fixing device 400 for being fixed to the anchoring portion 150. The supporter fixing device 400 can prevent the supporter 300 from being separated from the anchoring portion 150 by an external force. The supporter fixing device 400 is rotatably installed on the supporter mounting portion 350. As an example, when the supporter mounting portion 350 is mounted on the anchoring portion 150, the supporter fixing device 400 is in contact with and supported by the fixing frame 151 of the anchoring portion 150. That is, the supporter 300 is fixed to the anchoring portion 150 by the supporter fixing device 400.

On the other hand, the supporter fixing device 400 is released from being fixed when the supporter fixing device 400 is rotated in one direction by the user while being attached to the anchoring portion 150. When the supporter fixing device 400 is released from the fixing, the supporter 300 is separated from the anchoring portion 150.

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

<Structure of supporter fixing device 400>

FIG. 19 is a partially enlarged view showing a fixed state of the supporter fixing device seen from the inside according to one embodiment, and FIG. 20 is a partially enlarged view showing a fixed state of the supporter fixing device seen from the outside according to one embodiment. is there.

FIG. 21 is a partially enlarged view showing the unfixed state of the supporter fixing device seen from the inside according to one embodiment, and FIG. 22 is a partially enlarged view showing the unfixed state of the supporter fixing device seen from the outside according to one embodiment. It is a figure.

With reference to FIGS. 19 to 22, the supporter fixing device 400 includes a fixing device body 410, a fixing screw 420 which is a rotation center of the fixing device body 410, and an elastic member for restoring the rotation of the fixing device. A 430 and a second screw 460 that supports the elastic member 430 can be included.

The fixing screw 420 can rotatably connect the fixing device body 410 to the supporter mounting portion 350. Then, a fixing device hook portion 411 is formed so as to project on one side of the fixing device body 410.

The fixture body 410 may include a first round portion 412a that is in contact with and supported by the anchoring portion 150. Further, the fixing device body 410 can include a second round portion 412b formed in a portion opposite to the first round portion 412a with reference to the fixing device hook portion 411. The second round portion 412b can slide on the anchoring portion 150. As an example, when the second round portion 412b contacts and slides on the anchoring portion 150, the fixture body 410 can rotate in one direction (the direction in which the supporter faces the main body 310).

A fixing device protruding portion 413 may be provided on the other side of the fixing device body 410 opposite to the fixing device hook portion 411. The elastic member 430 is connected to the fixing device protrusion 413. As an example, one end of the elastic member 430 is connected to the fixing device protrusion 413.

The elastic member 430 is in the form of a spring, and as described above, one end thereof is fixed to the fixing device protrusion 413. The other end of the elastic member 430 is connected to the supporter mounting portion 350. Therefore, when the supporter fixing device 400 is rotated to one side by an external force, a restoring force is accumulated in the elastic member 430. Then, when the external force is cut off, the supporter fixing device 400 can be returned to the original position by the restoring force.

The supporter 300 may further include a first screw 450 that penetrates the fixture body 410 and the supporter mounting portion 350. The first screw 450 can rotate together with the fixture body 410. For this purpose, the supporter mounting portion 350 is formed with an opening 352 for the rotation of the first screw 450. The opening 352 is formed long in the left-right (on the drawing) direction of the fixture body 410. The area of the opening 352 formed in the supporter mounting portion 350 determines the radius of gyration of the fixture body 410 that rotates with the first screw 450.

Hereinafter, a state in which the connection between the supporter 300 and the anchoring portion 150 is fixed by the supporter fixing device 400 will be described.

<Supporter fixing device 400 operation to fix the bond between the supporter and the anchoring part>

Referring to FIG. 18, in the process of the supporter 300 being anchored to the anchoring portion 150, the fixing instrument second round portion 412b of the supporter fixing instrument 400 comes into contact with the fixing frame 151 of the anchoring portion 150. And can be slid. At this time, as shown in FIGS. 21 and 22, the supporter fixing device 400 can rotate toward the center of the supporter main body 310. As another example, the supporter fixing device is obtained by a user applying a force to the fixing device protruding portion 413 of the supporter fixing device 400 without contact between the fixing device second round portion 412b and the supporter fixing device 400. The 400 can rotate toward the center of the supporter main body 310. As a result, the supporter 300 can be attached to the attachment portion 150.

Referring to FIG. 17, when the supporter 300 is anchored to the anchoring portion 150, the fixing instrument first round portion 412a of the supporter fixing instrument 400 comes into contact with the fixing frame 151 of the anchoring portion 150. Be supported. Specifically, as shown in FIGS. 19 and 20, the supporter fixing device 400 can be moved to the outside (on the drawing) of the supporter 300 by the restoring force of the elastic member 430. The fixing device first round portion 412a is in contact with and supported by the fixing frame 151 of the anchoring portion 150. Therefore, the supporter 300 is stably fixed to the anchoring portion 150 without detaching. That is, the bond between the supporter 300 and the anchoring portion 150 is fixed by the fixing device 400.

<Uncoupling operation between the supporter and the anchoring part>

With reference to FIGS. 18, 21, and 22, the supporter fixing device 400 is directed toward the center of the supporter main body 310 by applying a force to the fixing device protrusion 413 of the supporter fixing device 400. Can rotate. At this time, the fixed state of the bond between the supporter 300 and the anchoring portion 150 is released. Therefore, the supporter 300 is separated from the anchoring portion 150.

<Seat control device connected to the supporter>

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

The seat control device 600 can further include a seat lever case 610 in which the seat control lever 620 is housed. The seat lever case 610 is separably installed in the supporter 300. The seat lever case 610 is screwed to the supporter 300.

[Another Example: Standing Auxiliary Chair 1 Including Supporter 300 with Adjustable Length]

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

In this embodiment, for convenience of explanation, drawing reference numerals having the same configuration as those in the previous embodiment are used, and detailed description of the configuration is omitted.

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

With reference to FIGS. 23 and 24, the supporter 300 can include each of the pair of supporter auxiliary bodies 330 and 340 and a supporter elastic member 380 that connects the supporter main body 310. Specifically, the supporter elastic member 380 may include a supporter first elastic member 381 that connects the supporter main body 310 and the supporter first auxiliary body 330. Further, the supporter elastic member 380 may further include a supporter second elastic member 382 that connects the supporter main body 310 and the supporter second auxiliary body 340. The supporter elastic member 380 can include, for example, tension and compression springs.

When an external force acts on at least one of the pair of supporter auxiliary bodies 330 and 340 and at least one of the pair of supporter auxiliary bodies 330 and 340 is moved toward the center of the supporter main body 310, the supporter Restoring force is accumulated in the elastic member 380.

On the other hand, when the external force is cut off, the restoring force is provided to the pair of supporter auxiliary bodies 330 and 340. That is, the pair of supporter auxiliary bodies 330 and 340 can move in a direction far from the central portion of the supporter main body 310.

That is, when the user applies an external force to at least one of the pair of supporter auxiliary bodies 330 and 340 to compress the length of the supporter 300, the restoring force is accumulated in the supporter elastic member 380. Then, when the user attaches the supporter 300 to the pair of fixed frames, for example, the first fixed frame 151a and the second fixed frame 151b, and shuts off the external force, the restoring force of the supporter elastic member 380 is increased. It is provided to the pair of supporter auxiliary bodies 330 and 340. Then, the length of the supporter 300 is adjusted so as to match 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, it is possible to provide a stable standing and sitting assist function to a person with weak muscle strength such as an elderly person with a simple operation.

According to the present invention, since the angle (α) of the gas cylinder can be intuitively manipulated, the user can easily and conveniently adjust the standing assist force to suit the weight and body shape.

According to the present invention, the length of the supporter supporting the seat tilt module can be easily adjusted, the seat tilt module can be easily adopted for chairs having various widths, and the standing assist function can be extended to various articles. be able to.

Claims (20)

A seat where the user can sit and
A link provided at the bottom of the sheet to erect the sheet,
A gas cylinder that provides a given power to the link,
An erection assisting force adjusting device for adjusting the force with which the gas cylinder erects the seat, and
Including
The standing assist force adjusting device is
An angle adjusting lever that is directly or indirectly connected to one end of the gas cylinder so as to adjust the angle of the gas cylinder.
An upright auxiliary chair including an angle adjusting case that houses the angle adjusting lever so as to be movable in the vertical direction. When the angle adjusting lever moves upward, the standing assist force becomes smaller.
The standing assisting chair according to claim 1, wherein when the angle adjusting lever moves downward, the standing assisting force increases. The link is
The rotating plate attached to the bottom of the sheet and
A fixing plate horizontally located under the rotating plate and
A four-bar link provided between the rotating plate and the fixing plate and communicating with the rotating plate so that the rotating plate can be tilted forward with respect to the fixing plate.
Including
The upright auxiliary chair according to claim 1, wherein the angle adjusting case is provided on the fixing plate. The standing assisting chair according to claim 3, wherein the standing assisting force adjusting device is arranged between the fixing plate and the gas cylinder. A fixed shaft is provided on one side of the gas cylinder.
The cylinder angle adjusting case guides the fixed shaft and includes an angle adjusting opening formed long extending in the angle adjusting case in a direction intersecting a virtual line extending in the length direction of the fixing plate.
The upright auxiliary chair according to claim 3, wherein the angle adjusting lever is coupled to the fixed shaft and the fixed shaft can be moved along the angle adjusting opening. The angle adjustment lever
With the lever body
A fixed shaft coupling portion provided at one end of the lever body and coupled to the fixed shaft,
The standing auxiliary chair according to claim 5, which includes a handle provided at the other end of the lever body. The angle adjusting opening includes a plurality of grooves to which the fixed shaft is locked.
The upright auxiliary chair according to claim 5, wherein the angle of the gas cylinder is maintained by locking the fixed shaft to any one of the plurality of grooves. The standing auxiliary chair according to claim 3, further comprising an standing lock device provided on the fixing plate and selectively restricting the standing of the rotating plate. The standing lock device includes
A lock case that is connected to the fixing plate and
A lock portion rotating member that is rotatably supported by the lock portion case and can lock or unlock the rotating plate.
The upright auxiliary chair according to claim 8, further comprising a lock portion screw movably installed in the lock portion case so that one end of the lock portion rotating member can be rotated. The standing auxiliary chair according to claim 9, wherein the other end of the locking portion rotating member includes a locking portion locking projection capable of locking the rotating plate in a horizontal state so as to be restricted from standing. The standing lock device is
The standing auxiliary chair according to claim 9, further comprising a lock portion elastic member that connects the lock portion rotating member and the lock portion case and restores the position of the lock portion rotating member. A seat where the user can sit and
The chair body to which the seat is attached and
A resting portion that forms the lower part of the chair body and has at least a pair of fixed frames provided on both sides of the chair body.
A supporter that connects between the pair of fixed frames and
Includes a seat tilt module that is located between the supporter and the seat and drives the seat to stand up and tilt forward.
The supporter is an upright auxiliary chair characterized in that the length is adjustable. The supporter
The supporter main body that supports the seat tilt module and
A pair of supporter auxiliary bodies that can be moved horizontally inside the supporter main body,
The standing auxiliary chair according to claim 12, further comprising a supporter mounting portion provided on the supporter auxiliary body and coupled to the fixed frame. The supporter
A plurality of main body through holes formed in the supporter main body,
A plurality of auxiliary body through holes formed in each of the pair of supporter auxiliary bodies, and
The upright auxiliary chair according to claim 13, further comprising a length fixing screw penetrating the main body through hole and the auxiliary body through hole. The pair of supporter auxiliary bodies
A supporter first auxiliary body provided on one side of the supporter main body and horizontally movable inside the supporter main body,
The standing auxiliary chair according to claim 13, further comprising a supporter second auxiliary body provided on the other side of the supporter main body and horizontally movable inside the supporter main body. The supporter main body includes a pinion that is rotatably located in the center.
The standing auxiliary chair according to claim 15, wherein each of the supporter first auxiliary body and the supporter second auxiliary body includes a rack in contact with the pinion. The standing auxiliary chair according to claim 15, wherein the rack of the supporter first auxiliary body and the rack of the supporter second auxiliary body are arranged so as to face each other. The standing auxiliary chair according to claim 13, wherein an elastic member is provided between the supporter main body and the supporter auxiliary body. The upright auxiliary chair according to claim 13, wherein the supporter is rotatably provided on the supporter mounting portion and includes a supporter fixing device for fixing a bond between the supporter and the fixing frame. The supporter mounting portion is provided by being bent upward from the outer end portion of the supporter auxiliary body.
The standing auxiliary chair according to claim 13, wherein the end portion of the supporter mounting portion has a "┐" shape.

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