KR102130551B1 - Chair with standing up aid - Google Patents

Abstract

The present invention relates to a standing auxiliary chair that can rotate the seat forward by a simple operation, and can easily adjust the standing angle of the seat without external power.
The standing auxiliary chair according to the present invention is disposed between a seat on which a user can sit, a chair body on which the seat is mounted, a seating portion forming a lower portion of the chair body, and the seat and the seating portion, It includes a seat tilting module to drive inclined forward by standing up. The seat tilting module has a lower locking device detachably mounted to the seating portion.
Therefore, since the seat tilting module can be easily separated and mounted on the chair body, maintenance of the seat tilting module is easy. In addition, when the user carries the standing auxiliary chair without being seated, the seat tilting module may be separated from the chair body, and then the chair body may be folded to be transported together with the seat tilting module. Therefore, there is an advantage that the portability of the standing auxiliary chair is improved. In addition, the seat tilting module is detachably mounted to the chair body, and thus, it can be employed in various types of chairs.

Description

Standing Chair {CHAIR WITH STANDING UP AID}

The present invention relates to a standing auxiliary chair that can help a user sitting on a seat to lift the seat upward and rotate it forward by a simple operation, and easily adjust the lift and rotation power of the seat without external power. It is about standing upright chair that can.

In general, a chair is a piece of furniture for a person to sit on, and is composed of a backrest, seats, armrests, and legs supporting them.

In modern society, as chairs are used in situations such as work life, leisure life, and relaxation, the time spent sitting on a chair increases a lot, and elderly people with musculoskeletal disorders who are self-reliant can spend more time living in a chair.

However, the elderly with weak joints or those with musculoskeletal disorders have weak muscles, so it is difficult to get up from a chair alone, and many fall accidents occur due to incorrect center movement when standing. In order to solve this problem, in recent years, a large number of standing chairs and wheelchairs for the elderly have been developed.

In Korean Patent Publication No. 2011-0074342, when the end portion of the armrest is pressed using the load of the upper body, the seat located in parallel with the armrest is lifted and rotated at the same time, lifting the hips and simultaneously lifting the center of gravity of the upper body. A functional chair that assists a standing motion while moving forward is disclosed.

On the other hand, according to the prior art, since the standing auxiliary means for providing the standing auxiliary operation is formed integrally with the chair body, maintenance is difficult, and there is a problem in carrying when carrying.

An object of the present invention is to provide a standing auxiliary chair that enables detachable standing means for providing lift and rotational force to a seat.

In one aspect, the standing auxiliary chair of the present invention is disposed between a seat on which a user can sit, a chair body on which the seat is mounted, a seating portion forming a lower portion of the chair body, and the seat and the seating portion. , A seat tilting module that drives the seat upright and tilts forward. The seat tilting module has a lower locking device detachably mounted to the seating portion.

According to the present invention, by the operation of the seat control lever, the seat is lifted upward by the seat tilting module and tilted forward, thereby helping the user sitting on the seat to stand.

In addition, since it is easy to remove and mount the seat tilting module to the chair body, there is an advantage of easy maintenance for the seat tilting module.

In addition, when the user carries the standing auxiliary chair without being seated, the seat tilting module may be separated from the chair body, and then the chair body may be folded to be transported together with the seat tilting module. Therefore, there is an advantage that the portability of the standing auxiliary chair is improved.

1 is a perspective view of a standing auxiliary chair according to a first embodiment of the present invention.
2 to 4 are views showing a part of the leg rest tilting module and the leg rest control lever according to the first embodiment.
5A to 5B are side cross-sectional views showing an operating state of the legrest tilting module according to the first embodiment.
6 is a schematic view showing the installation structure of the weight measuring means according to the first embodiment.
7 is a perspective view of a standing auxiliary chair according to a second embodiment of the present invention.
8 is a perspective view illustrating a seat tilting module applied to a standing auxiliary chair in the second embodiment.
9A to 9B are views showing an operating state of the seat tilting module during operation of the standing auxiliary chair according to the second embodiment.
Fig. 10 is a schematic view showing a seat control lever applied to a standing auxiliary chair in the second embodiment.
11 is a schematic view showing a mounting structure of a weight measurement sensor applied to a standing auxiliary chair in the second embodiment.
12 is a graph showing the stress acting on the gas cylinder according to the installation angle of the gas cylinder during operation of the standing auxiliary chair in the second embodiment.
13 is a graph showing the stroke of the gas cylinder according to the installation angle of the gas cylinder during operation of the standing auxiliary chair according to the second embodiment.
14 is a perspective view of a standing auxiliary chair according to a third embodiment of the present invention.
15 is a perspective view illustrating a seat tilting module applied to a standing auxiliary chair according to a third embodiment.
16 and 17 are views showing an operating state of the seat tilting module during operation of the standing auxiliary chair according to the third embodiment.
18 is a side view of the seat tilting module to which the standing angle adjusting device for adjusting the standing angle of the gas cylinder according to the third embodiment is applied.
19 is a partially enlarged view of a seat tilting module showing a standing angle adjusting device according to a third embodiment.
20 is a graph showing the vertical force of the gas cylinder according to the stroke change of the seat tilting module according to the third embodiment.
21 is a partially enlarged view of a standing assisting chair for explaining a combined structure of the seat tilting module and the standing assisting chair according to the third embodiment.
22 is a partial side view of a standing auxiliary chair for explaining a state in which the seat tilting module according to the third embodiment is mounted on the standing auxiliary chair.
23 is a view showing a state in which the pressing portion of the locking device is pressed so that the seat tilting module is detached from the standing auxiliary chair in FIG. 22.
24 is a view showing a part of a standing auxiliary chair for explaining a plurality of levers provided in the standing auxiliary chair according to the third embodiment.
Fig. 25 is a partially enlarged view of a standing auxiliary chair showing the seat control lever according to the third embodiment.
26 is a schematic view showing a height adjustment lever applied to a standing auxiliary chair according to a third embodiment.
27 is a partially enlarged view of a standing auxiliary chair viewed from the front according to a fourth embodiment of the present invention.
28 is a partially enlarged view of a standing auxiliary chair viewed from the side according to the fourth embodiment.
29 is a perspective view showing a plurality of frames constituting the chair body according to the fourth embodiment.
30 is a perspective view of the seat tilting module according to the fourth embodiment.
31 is a partially enlarged view showing a lower locking device of the seat tilting module according to the fourth embodiment.
FIG. 32 is a partially enlarged view showing the lower locking device in which the lock is released in FIG. 31.
33 to 35 are partial enlarged views showing a process in which the seat tilting module is mounted to the standing auxiliary chair.
36 is a partially enlarged view showing a process in which the seat tilting module is separated from the standing auxiliary chair.
37 is a perspective view of a standing auxiliary chair according to a fifth embodiment of the present invention.

Hereinafter, the present embodiment will be described in detail with reference to the accompanying drawings. However, the scope of the spirit of the invention possessed by the present embodiment may be determined from the information disclosed by the present embodiment, and the spirit of the invention possessed by the present embodiment may be implemented by adding, deleting, or changing elements to the proposed embodiment. It will be said to include variations.

<First Example>

1 is a perspective view of a standing auxiliary chair according to a first embodiment of the present invention.

The standing auxiliary chair of the present invention includes a base 110, a seat 120, a backrest 130, a pair of armrests 140 and 150, and a leg support 160, as shown in FIG. It is configured to include a footrest tilting module 170, a seat control lever 180, and a footrest control lever 190.

Here, the standing auxiliary chair refers to an article capable of assisting the operation when the seated object stands on all types of chairs that can be seated, such as a wheelchair or a sofa for the disabled.

The base 110 is provided in a form of fixing the entire standing auxiliary chair to the floor, and it is possible to prevent the musculoskeletal system, such as the elderly and the elderly, from stably assisting the standing motion of the weak user and to prevent the chair from falling over.

The seat 120 is a seat plate that can be seated by a user, and is configured to provide comfortable cushion by providing a predetermined cushion. In addition, the seat 120 is mounted in a horizontal state on the upper side of the base 110. As the seat tilting module (not shown) having a link structure using a gas spring is separately provided, the seat 120 is tilted forward. It is installed to be, and the rotation angle is adjusted by the seat control lever 180.

In an embodiment, the seat tilting module (not shown) is a type of module, fixed to the upper side of the base 110, and configured to mount the seat 120 and the backrest 130 and the leg support 160 Because it can be applied to the existing chair configuration, it is possible to easily implement a standing auxiliary chair that can rotate the seat 120 forward, and can be configured in various forms.

The backrest portion 130 is provided to allow the user to lean back, and is similarly configured to provide a predetermined cushion to lean comfortably. In addition, the backrest portion 130 is mounted in a vertical state or inclined rearward to the upper side of the base 110, and is installed to be fixed to the base 110 or a separate seat tilting module (not shown).

The armrest parts 140 and 150 are provided to place the user's hands and arms, and are composed of a right armrest part 140 and a left armrest part 150 on both sides of the seat 120, and likewise, the base 110 ) Or a separate seat tilting module (not shown).

In an embodiment, a handle lever (not shown) of the seat control lever 180 is exposed on the front surface of the right armrest part 140, and the leg support control lever is provided on the front surface of the left armrest part 150. The handle lever 191 of FIG. 190 (FIG. 4) is configured to be exposed, but is not limited.

In addition, the armrest portions 140 and 150 may have a predetermined space secured therein, and may be configured to open and close the space by a separate cover, and a separate cover has a medication time alarm setting button (not shown). It may be provided.

Of course, the inside of the armrests 140 and 150 includes a shelf that can be easily taken out and unfolded, or can store health-related products, but is not limited.

The leg support 160 is provided to allow a user to raise a leg, and is similarly configured to provide a predetermined cushion to comfortably raise the leg. In addition, the leg support 160 is mounted to be vertically downward in front of the seat 120, and is installed to be rotatable in the horizontal direction as the leg support tilting module 170 to be described below is mounted. The angle of rotation is adjusted by the footrest control lever 190 to be described.

Since the leg support tilting module 170 is a type of module, it is mounted under the seat 120 and the leg support 160 so as to connect the seat 120 and the leg support 160 to each other. By applying it, the leg support 160 can be easily rotated to a desired angle, and the detailed configuration will be described below.

The seat control lever 180 is provided to adjust a rotation angle of the seat tilting module (not shown), and is installed to expose some handle levers (not shown) on the right armrest 140, and the seat tilting module It is connected so as to control the operation of (not shown), and the detailed configuration may be omitted in various ways.

The leg rest control lever 190 is provided to adjust the rotation angle of the leg rest 160, likewise installed in the left armrest 150 so that some handle levers are exposed, and the leg rest tilting module 170 It is connected to control the operation of the, detailed configuration will be described in detail below.

2 to 4 are views showing a part of the leg support tilting module and the leg support control lever applied according to the first embodiment.

According to the present invention, as shown in Figures 2 to 4, the leg support tilting module 170 has a first fixed frame 121 bolted to the lower side of the seat 120 and a lower part of the leg support 160. A pair of second fixed frames 161 that are bolted, and a pair of support springs 171 supporting the leg support 160 in the horizontal direction as the seat 120, and the support springs 171 ) Is composed of a brake means to stop the movement, the brake means, a rotating shaft (172), a ratchet (ratchet: 173), a pawl (pawl: 174), a moving plate (175) and a fixed plate (176), Compression spring 177 may be configured.

The support springs 171 are installed to provide an elastic force for supporting the leg support 160 in the horizontal direction like the seat 120, with a predetermined interval in the horizontal direction below the leg support 160. Located, both ends are fixed to the first and second fixed frames (121,161).

In an embodiment, a plurality of holes 121h are provided at regular intervals in the up/down direction on the side portion of the first fixing frame 121, and a hole is also provided on the side portion of the second fixing frames 161. 161h) is provided, one end of the support springs 171 is selectively bolted to one of the holes 121h of the first fixing frame, and the other end of the support springs 171 is the second It may be fitted into the holes 161h of the fixing frames, or may be fixed as it is structurally molded during assembly, and is not limited.

The rotating shaft 172 is installed so that both ends thereof are engaged with the axial direction of the supporting springs 171 to rotate like the supporting springs 171, the lower portion of which is provided by the first and second fixing frames 121 and 161. It is installed to be rotatable as it is supported.

The ratchet 173 is installed around the central side of the rotating shaft 172, the outer circumferential surface of the rotating shaft 172 and the inner circumferential surface of the ratchet 173 has a predetermined form of straight portions 172L, 173L that are in flat contact with each other. As provided, the rotation shaft 172 and the ratchet 173 are installed to rotate in engagement with each other. Of course, the ratchet 173 is geared to the outer circumferential surface, and is configured to be engaged with the pole 174 to be described below. Therefore, when the ratchet 173 is engaged with the following pole 174, it is configured to stop the rotating shaft 172.

The pole 174 is formed with a predetermined tooth on one side so as to be selectively engaged with the gear teeth of the ratchet 173, the other end of the pole 174 is connected to the hinge (174a), the pole ( One end of 174) is installed to be moved to the ratchet 173 side. Therefore, when the pole 174 rotates at a predetermined angle around the hinge 174a, the teeth of the pole 174 can selectively engage the gear teeth of the ratchet 173 to fix the rotating shaft 172. have.

The movable plate 175 is installed to be movable with the other end of the pole 174 while being connected to the other side of the pole 174, while the fixed plate 176 is provided with the movable plate 175 It is fixed in the spaced apart position. In an embodiment, the fixing plate 176 is a type of a square case so that the hinge 174a of the pole 174 is fixed, or a compression spring 177 and an operation shaft 194 to be described below can be configured to be built in. It may be composed of, but is not limited to.

The compression spring 177 is supported at both ends between the moving plate 175 and the fixing plate 176. As the compression spring 177 is supported by the fixing plate 176, the elastic force of the compression spring 177 is It provides a force to push the moving plate 175 and the pole 174 toward the ratchet 173 side.

On the other hand, the leg support control lever 190 is configured to mechanically transmit the movement of the user's hand to the moving plate 175 to control the operation of the leg support tilting module 170, the handle lever 191 And, it may be composed of a wire 192, the operation lever 193, and the operation shaft 194.

The handle lever 191 is provided on one of the armrests 140 and 150 (shown in FIG. 1) and is configured to be pulled by a user.

The wire 192 is provided to transmit the movement of the handle lever 191, it is preferable to embed so as not to be exposed in appearance.

The operation lever 193 is configured in the form of a lever that transmits the movement of the wire 192 to the operation shaft 194 to be described below, one end is connected to the wire 192, the other end is It is hingedly connected to the operation shaft 194 to be described, and is supported horizontally outside the fixing plate 176 at the same time. Of course, based on the operation lever 193, the wire 192 and the operation axis 194 to be described below are installed in opposite directions.

The operation shaft 194 connects between the moving plate 175 and the operation lever 193, and is installed to penetrate the compression spring 177 and the fixing plate 176. In an embodiment, it is preferable that the operation lever 193 and the operation shaft 194 are hinged so as to transmit movement even if they are fixed in a state where they intersect with each other in an installation structure.

In addition, the other end of the operation lever 193 may be provided with a hole 193h that can be hinged to each other with the operation shaft 194, and the position of the hole 193h is a force that the user can pull by hand. In consideration of the above, the operation lever 193 and the operation shaft 194 may be provided at positions intersecting each other.

5A to 5B are side cross-sectional views showing an operating state of the legrest tilting module according to the first embodiment.

When the user pulls the handle lever to adjust the angle of the leg rest 160, the operation lever 193 and the operation shaft 194 are pulled by a wire (not shown) as shown in FIG. 5A, and compressed accordingly. When the spring 177 is compressed and one end of the moving plate 175 and the pole 174 is pulled, the teeth of the pole 174 are released from the gear teeth of the ratchet 173, so that the rotation shaft 172 The restraint is released, and the leg rest 160 is supported by the seat 120 only by the support springs 171.

Therefore, when the user raises the leg on the leg support 160, the weight of the leg is greater than the elastic force of the support springs 171, so that the seat as the leg support 160 is rotated around the rotation axis 172. It is inclined in the downward direction of the 120, it is possible to adjust the angle of the leg support 160.

Of course, when the user lowers the leg from the leg support 160, the angle of the leg support 160 can be adjusted to be level with the seat 120 by the elastic force of the springs 161.

Thereafter, when the user releases the pull of the handle lever in order to maintain the angle of the leg support 160, the operation lever 193 and the operation shaft 194 of the operation lever 193 by a wire (not shown) as shown in FIG. 5B. When the pull is released, and the compression spring 177 is released in its original state, and one end of the moving plate 175 and the pole 174 is returned to the original position, the teeth of the pole 174 are connected to the ratchet 173. The rotation shaft 172 is constrained according to the engagement with the gear teeth, and the leg support 160 is mechanically supported by the ratchet 173 and the pole 174 to the seat 120.

Therefore, even if the user raises the leg on the leg support 160, the angle of the leg support 160 can be maintained as it is, and the user can rest comfortably.

6 is a schematic view showing the installation structure of the weight measuring means according to the first embodiment.

The weight measuring means applied to the present invention can accurately measure the weight while the user sits on the seat 120 (shown in FIG. 1) and raises the leg on the leg support 160 (shown in FIG. 1) as shown in FIG. It is provided so that the user is seated seat 120 (shown in Figure 1) is mounted on the lower surface of the upper plate 211, and the upper plate 211 spaced apart by a separate member fixed by a separate member 212 and , It may be composed of a weight measurement sensor 213 installed to connect between the top plate 211 and the middle plate (212).

In this embodiment, the upper plate 211 and the middle plate 212 may be configured in a form included in a sheet tilting module (not shown) provided to separately rotate the sheet 120 (shown in FIG. 1 ), but is limited. It is not.

It is preferable that the weight measurement sensors 213 are respectively installed in at least four places to reduce measurement errors, and holes in which the weight measurement sensors 213 may be respectively installed at four corner portions of the middle plate 212. (212H) is provided.

At this time, the weight measurement sensor 213 may be composed of a plate-shaped piezoelectric element, the outer circumferential portion 213a bolted around the hole 212H of the middle plate 212 and the outer circumferential portion 213a bent inside It consists of an inner circumferential portion 213b bolted to the upper plate 211 in a possible form, and a measuring portion 213c that generates a voltage change according to the degree to which the inner circumferential portion 213b is bent relative to the outer circumferential portion 213a. It can be, but is not limited to.

Of course, the voltage change measured by each weight measurement sensor 213 can be averaged and then accurately converted into weight.

Therefore, when the user sits on the seat 120 (shown in FIG. 1) and lifts the foot on the leg support 160 while the user sits on the seat 120, the user's weight is the seat 120 (shown in FIG. 1) and the top plate 211. In all, the inner circumferential portion 213b is bent downward with respect to the outer circumferential portion 213a, and the inner circumferential portion 213b is bent with respect to the outer circumferential portion 213a as the top plate 211 is moved downward. A voltage change occurs according to the degree, and the body weight can be accurately measured according to the voltage change.

<Second Example>

The second embodiment will be described below.

This embodiment differs from the first embodiment in a configuration in which a preferred seat tilting module is implemented in detail.

In addition, description of the same configuration as that of the first embodiment is omitted.

7 is a perspective view showing a standing assistant chair according to a second embodiment.

The standing auxiliary chair according to the second embodiment of the present invention includes a base 310, a seat 320, a backrest portion 330, and a pair of armrest portions 340 and 350 as shown in FIG. , A leg support 360, a seat tilting module 370, a seat control lever 380, and a leg support control lever 390.

8 is a perspective view illustrating a seat tilting module applied to a standing auxiliary chair in the second embodiment.

The seat tilting module 370 of this embodiment includes a rotating plate 371, a fixing plate 372, a four-section link 373, and a gas cylinder 374 as illustrated in FIG. 8.

Of course, in order to stably drive the seat tilting module 370, the four sections link 373 and the gas cylinder 374 are provided in pairs so as to connect both sides of the rotating plate 371 and the fixing plate 372, respectively. Preferably, only one of the four links 373 and the gas cylinder 374 is shown in the drawing for convenience.

The rotating plate 371 is a plate shape in which the seat 320 is mounted on the upper surface, and the first link 431 of the four-section link 373 to be described below is fixed to both front sides, and the first link 431 ) Is installed to be rotated forward as it is rotated forward.

In an embodiment, the rotating plate 371 is composed of an upper plate 411 and a middle plate 412 installed so as to be spaced apart from the lower side thereof, in order to mount the weight measuring sensor 413 (shown in FIG. 11) to be described below. The upper plate 411 is fixed to the lower surface of the sheet 320, and the middle plate 412 is spaced apart from the lower side of the upper plate 411 by the weight measurement sensors 413 (shown in FIG. 11). Fixed, but not limited.

The fixing plate 372 is a plate shape fixed to the upper side of the base 310 (shown in FIG. 7 ), and the second link 432 of the four-section link 373, which will be described below, is fixed to both rear sides. The second link 432 is maintained in a fixed state.

The fourth link 373 is a third link that is hinged between the first link 431, which is a kind of rotating link, the second link 432, which is a kind of fixed link, and the first and second links 431, 432. ,4 links (433, 434).

In detail, the first link 431 is fixed to the front side of the middle plate 711 of the rotating plate 371, while the second link 432 is fixed to the rear side of the fixing plate 372, the rotating plate When the (371) is viewed based on the horizontal state, the first and second links 431 and 432 are both positioned vertically downward with respect to the rotating plate 371, and the cross section may be configured as a plate shape having a'U' shape. .

In addition, the third link 433 is hinged to the center of the first link 431 and the upper portion of the second link 432, and the fourth link 434 is the first link 431. The lower portion is hinged to the lower portion of the second link 432, and the third and fourth links 433 and 434 may be configured in a bar shape.

In this case, the first and second links 431 and 432 may be provided with a plurality of holes 431h and 432h at regular intervals in order to easily change the hinged position of the gas cylinder 374 to be described below. However, the installation angle of the gas cylinder 374 may be appropriately adjusted according to the user's weight and body shape according to the simulation result.

In addition, a separate fixing frame 432a for fixing the armrest portions 340 and 350 (shown in FIG. 7) may be provided at one side of the second link 432, and in addition, a backrest portion 330 or the like may be provided. Various frames for fixing may be additionally provided, but are not limited thereto.

The gas cylinder 374 is a cylinder that can be provided with a predetermined gas pressure in the compression space therein, and is hinged to connect between the upper portion of the first link 431 and the lower portion of the second link 432. , It provides a driving force to the section 4 link 373. Of course, the gas cylinder 374 is connected to the seat control lever 380 (shown in Figure 7), which will be described below.

Accordingly, when the seat control lever 380 (shown in FIG. 7) to be described below is pulled, the size of the compressed space inside the gas cylinder 374 is varied by a predetermined gas pressure, and the force acting from the outside is greater than the gas pressure. If small, the overall length of the gas cylinder 374 increases as the compression space increases, but if the force acting from the outside is greater than the gas pressure, the overall length of the gas cylinder 374 decreases as the compression space decreases. do.

On the other hand, when releasing the seat control lever 380 (shown in FIG. 7) to be described below, by fixing the size of the compressed space inside the gas cylinder 374, the entire length of the gas cylinder 374 is maintained.

Of course, the pressure of the gas cylinder 374 is preferably used to suit the user's body weight and body shape, but even if the gas cylinder 374 having the same pressure is used, the installation angle and stroke of the gas cylinder 374 are adjusted. It is possible to provide a standing assist motion suitable for a user's weight and body shape.

9A to 9B are views showing an operating state of the seat tilting module during operation of the standing auxiliary chair according to the second embodiment.

When the user sits on the seat, as shown in Fig. 9A, the rotating plate 371 and the fixing plate 372 are kept in a horizontal state, and the gas cylinder 374 has a predetermined installation angle (a) with respect to the rotating plate 371 ).

When the user pulls the seat control lever 380 (shown in FIG. 7) to be explained below and slightly lifts the buttocks, the overall length of the gas cylinder 374 increases and moves from FIGS. 9A to 9B, the second link While the 432 is fixed, the first, third, and fourth links 431, 433, and 434 are rotated around each hinge, and accordingly, the rotating plate 371 connected to the first link 431 is At the same time as it moves upward, it is inclined toward the front, and a standing assist motion is performed in which the seat of the user pushes up.

On the other hand, when the user pulls the seat control lever 380 (shown in FIG. 7) to be described below and puts weight on the seat with the buttocks, the overall length of the gas cylinder 374 decreases and moves from FIGS. 9B to 9A. At the same time, the rotating plate 371 moves downward and returns to a horizontal state, and a stable seating assist operation is performed in a state where the user's buttocks are seated on the seat.

Of course, when the user releases the pulling of the seat control lever 380 (shown in FIG. 7 ), which will be described below, when standing or sitting, the length of the gas cylinder 374 is maintained due to the characteristics of the gas cylinder 374. Because it can be, the user can stop at a desired position during a standing or sitting motion.

Fig. 10 is a schematic view showing a seat control lever applied to a standing auxiliary chair in the second embodiment.

The seat control lever 380 of the present invention includes a handle lever 381, a main wire 382, a distribution lever 383, and a pair of distribution wires 384 and 385 as shown in FIG. do.

The handle lever 381 is provided on one of the armrests 340 and 350 (shown in FIG. 7) and is configured to be pulled by a user's hand.

The main wire 382 is provided to transmit the movement of the handle lever 381, and it is preferable to embed it so as not to be exposed in appearance.

The dispensing lever 383 is provided to be movable by the main wire 382, the center of which is hinged and can be fixed to the rear of the fixing plate 372 (shown in FIG. 8), but is not limited.

The distribution wires 384 and 385 are provided with a pair, and are installed to connect between the two sides and levers of the gas cylinders 374 and 375, respectively, about the hinge of the distribution lever 383.

Thus, when the user pulls the handle lever 381, the movement of the handle lever 381 is transmitted to the distribution lever 383 by the main wire 382, and the hinge of the distribution lever 383 is centered. When both ends thereof are moved, and the movement of the distribution lever 383 is transmitted to the levers of the gas cylinders 374 and 375 by the distribution wires 384 and 385, the gas cylinders 374 and 375 ) Is provided with a predetermined gas pressure in the internal compression space, and the entire length of the gas cylinders 374 and 375 may be changed according to the magnitude of the force provided from the outside, thereby assisting a standing or sitting operation.

On the other hand, when the user releases the pulling state of the handle lever 381, the distribution lever 383 is returned to the original state by the main wire 382, and the gas is generated by the distribution wires 384 and 385. When the levers of the cylinders 374 and 375 are also returned to the original state, the entire length of the gas cylinders 374 and 375 can be fixed as the size of the internal compression space of the gas cylinders 374 and 375 is fixed. The standing or seating motion can be stopped.

11 is a schematic view showing a mounting structure of a weight measurement sensor applied to a standing auxiliary chair in the second embodiment.

The weight measurement sensor according to the present invention is provided so as to accurately measure the weight in the user's sitting state as shown in FIG. 11, the rotating plate 371 on which the seat 320 (shown in FIG. 7) on which the user sits is mounted is shown. 8) is preferably provided inside.

As described above, the rotating plate 371 (shown in FIG. 8) is configured in a form in which the upper plates 411 and 412 are separated from each other, and the upper plate 411 and the middle plate 412 by the weight measurement sensor 413. ) Are connected to each other.

In detail, it is preferable that the weight measurement sensors 413 are respectively installed in at least four places to reduce measurement errors, and the weight measurement sensors 413 are respectively installed in four corner portions of the middle plate 412. The holes 412H are provided.

At this time, the weight measurement sensor 413 may be composed of a plate-shaped piezoelectric element, the outer circumferential portion 413a bolted around the hole 412H of the middle plate 412 and the outer circumferential portion 413a bent inside It consists of an inner circumferential portion 413b that is bolted to the upper plate 411 in a possible form, and a measuring portion 413c that generates a voltage change according to the degree to which the inner circumferential portion 413b is bent relative to the outer circumferential portion 413a. It can be, but is not limited to.

Of course, the voltage change measured by each weight measurement sensor 413 can be averaged and then accurately converted into weight.

Accordingly, when the user lifts the foot while sitting on the seat 320 (shown in FIG. 7 ), the user's weight acts on both the seat 320 (shown in FIG. 7) and the top plate 411. 411) as the downward movement of the inner peripheral portion 413b is bent downward with respect to the outer peripheral portion 413a, the inner peripheral portion 413b is bent with respect to the outer peripheral portion 413a, a voltage change occurs, The body weight can be accurately measured according to the voltage change.

12 is a graph showing the stress acting on the gas cylinder according to the installation angle of the gas cylinder during operation of the standing auxiliary chair in the second embodiment, and FIG. 13 is a gas cylinder during standing auxiliary operation of the standing auxiliary chair according to the present invention It is a graph showing the stroke of the gas cylinder according to the installation angle of.

The installation angle (a) of the gas cylinder applied to the standing auxiliary chair of the present invention is varied downwardly with respect to the horizontal plane within a range of 10° to 90° at 10° intervals, and an external load of 60 kg is applied to increase the standing angle of the present invention. You can see the simulation result that the rotation angle of the rotating plate applied to is reciprocated for 5 seconds to a target angle of 25° upward with respect to the horizontal plane.

As a result of the above simulation, the stress change acting on the gas cylinder appears as shown in FIG. 12, the stress acting on the gas cylinder gradually decreases in the rising section where the user stands up, and the gas acting on the gas cylinder in the stop section where the user completely occurs The stress is reduced to the lowest, and the stress acting on the gas cylinder gradually increases in the descending section where the user is seated.

However, as the installation angle (a) of the gas cylinder increases from 10° to 60°, the stress acting on the gas cylinder decreases over the rising and falling sections, whereas when the installation angle of the gas cylinder increases to 70°, the cylinder The stress acting on the gas cylinder becomes larger at the beginning of the rising section or at the end of the falling section than when the installation angle is 60°. In addition, as the installation angle of the gas cylinder increases from 70° to 90°, the stress acting on the gas cylinder over the rising and falling sections becomes large as a whole.

Therefore, considering the stress acting on the gas cylinder, it is preferable that the installation angle of the gas cylinder is determined within a range of 20° to 60°.

On the other hand, as a result of the above simulation, the stroke change of the gas cylinder appears as shown in FIG. 13, the stroke of the gas cylinder gradually increases in the rising section where the user stands, and the stroke of the gas cylinder is maximized in the stop section where the user completely occurs. The stroke of the gas cylinder gradually decreases in the descending section where the user is seated.

However, as the installation angle (a) of the gas cylinder increases from 10° to 70°, the maximum stroke of the gas cylinder gradually increases to 45 mm or more, whereas when the installation angle (a) of the cylinder increases to 90°, the gas cylinder The stroke is rather reduced to 70 mm.

Therefore, in order to freely design the installation angle (a) of the gas cylinder within a range of 10° to 90°, it is preferable that the stroke of the gas cylinder is determined to be 45 mm or more.

<Example 3>

In this embodiment, compared to the previous embodiments, there is a difference in the configuration of adjusting the standing angle of the seat tilting module and the configuration detachably mounted on the standing auxiliary chair.

14 is a perspective view showing a standing assistant chair according to a third embodiment.

Referring to FIG. 14, the standing auxiliary chair 5 according to the third embodiment of the present invention may include a chair body 50 formed of a plurality of frames. A plurality of wheels 610 and 620 may be mounted on the chair body 50. Therefore, the chair body 50 may be moved by the user's manipulation by the plurality of wheels 610 and 620. More details of the plurality of frames will be described later.

The chair body 50 may include a seat (530) provided to allow a user to sit. The seat 530 is a seat plate to which a user can sit, and is configured to provide comfortable cushion by providing a predetermined cushion. Further, the seat 530 may be located on a seat tilting module 800 to be described below. More details of the seat tilting module 800 will be described later.

The chair body 50 further includes a backrest portion 540 on which the user can lean. The backrest portion 540 is configured to lean comfortably by providing a predetermined cushion. In addition, the backrest portion 540 is mounted in a vertical state or inclined backward with respect to the seat 530. To this end, the backrest portion 540 may be disposed behind the seat tilting module 800 in the plurality of frames.

The chair body 50 may further include a footrest 580 for supporting the user's foot.

The chair body 50 is provided in a module form, and may further include a seat tilting module 800 on which the seat 530 is mounted. The seat tilting module 800 may provide an upward force and a rotational force to the seat 530. For example, the seat 530 in a horizontal state may be lifted upward by the seat tilting module 800 and tilted forward. In other words, the horizontal seat 530 may be moved upward toward the front of the chair body 50 by the seat tilting module 800. At this time, the seat 530 may be inclined forward while being moved upward by the seat tilting module 800. Accordingly, since the direction in which the user seated on the seat 530 stands and the direction in which the seat 800 moves is inclined coincide, the user can stand up easily.

Conversely, in the state in which the seat 530 is moved upward, the seat tilting module 800 may always move the seat 530 downward toward the rear of the chair body 50. The seat 530 may be returned to a horizontal state in a downward movement toward the rear. At this time, since the direction in which the user sits on the seat 530 and the direction in which the seat tilting module 800 moves the seat 530 backward are identical to the seat 530, the user can stably place the seat 530. Can be seated on.

The seat tilting module 800 may include a seat control lever 730 that adjusts the front and rear movement of the seat 530. By the operation of the seat control lever 730, the seat tilting module 800 may move the seat 530 in a horizontal state upward upward. The user may operate the seat control lever 730 after placing the weight on the seat 530 in a standing state. At this time, the seat tilting module 800 may restore the horizontal state while moving the seat 530 in an upright position downward.

The seat tilting module 800 sets an upright angle adjustment device (850 in FIG. 18) for setting an upright angle (standing angle of a gas cylinder, referring to'α' in FIG. 18) in which the seat 530 stands up from the bottom surface. It may further include. An opening (821 in FIG. 15) in which the standing angle adjusting device 850 is installed may be formed in the fixing plate 820. The opening 821 may be disposed at a rear portion of the fixing plate 820. In addition, the standing angle adjusting device 850 may be rotatably installed with respect to the fixing plate 820 forming the opening 821. In other words, at least a part of the standing angle adjusting device 850 may be inserted into the opening 821. In addition, the rest of the standing angle adjusting device 850 may be fixed to the fixing plate 820. When the standing angle adjusting device 850 is inserted into the opening 821 and fixed to the fixing plate 820, since the rotation center of the gas cylinder 840 can be lowered, the more compact seat tilting module 800 It has the advantage of being able to design.

The standing angle α may be set by the standing angle adjusting device 850. The lifting force and the rotational force applied to the seat 530 may be adjusted according to the standing angle α. In other words, a force (hereinafter, vertical force) applied vertically to the sheet 530 by the sheet tilting module 800 may be changed. The vertical force provided to the sheet 530 may increase as the standing angle α approaches 90°. Conversely, as the standing angle approaches 0°, the vertical force applied to the seat tilting module 800 may decrease. For example, the heavier a person can increase the vertical force by greatly adjusting the standing angle α. In summary, there is an advantage in that a stable standing motion can be provided to the user by differently setting the standing angle α based on the user's body condition.

The chair body 50 may further include a supporter 700 on which the seat tilting module 800 is mounted. The supporter 700 may be installed on the plurality of frames. The supporter 700 may be screwed to at least one of the plurality of frames. Alternatively, the supporter 700 may be formed integrally with at least one of the plurality of frames. Meanwhile, the seat tilting module 800 may be detachably mounted on the supporter 700. In one example, the seat tilting module 800 may be screwed to the supporter 700. Since the seat tilting module 800 is detachably mounted on the supporter 700, maintenance of the seat tilting module 800 is simplified.

The plurality of frames may include a pair of support frames 510 and 510` forming the appearance of the standing auxiliary chair 5. The pair of support frames 510 and 510` may be spaced apart from each other. A plurality of wheels 610 and 620 may be mounted on the support frames 510 and 510`.

Meanwhile, in the present embodiment, the pair of support frames 510 and 510` have the same configuration. Therefore, for convenience of description, only one support frame 510 is described, and a detailed description of the other support frame 510` is omitted.

The support frame 510 may include a first support frame 511 on which the auxiliary rotating wheel 610 is mounted, and a second support frame 512 on which the main rotating wheel 620 is mounted. The main rotating wheel 620 may be provided with power for driving the standing auxiliary chair 5. The power may be provided by a motor, for example. As another example, the power may be provided by a user's power (manpower). On the other hand, the auxiliary rotating wheel 610 may be used for the purpose of changing the direction. To this end, the auxiliary rotating wheel 610 may be rotatably coupled to the first support frame 511.

The support frame 510 extends from the second support frame 512 and may further include a handle 513 that the user can grip. When the main rotary wheel 620 is positioned below the second support frame 512 around the second support frame 512, the handle 513 is an upper side of the second support frame 512 Can be formed on.

The plurality of frames may further include a side frame 515 connecting the first support frame 511 and the second support frame 512 to each other. The side frame 515 may include a second side frame 517 connecting approximately the centers of the first support frame 511 and the second support frame 512. In addition, the side frame 515 may further include a first side frame 516 connecting the first support frame 511 and the second support frame 512 to an upper side. The first side frame 516 may be disposed above the second side frame 517. In addition, the side frame 515 may further include a third side frame 518 connecting the lower side of the first support frame 511 and the second support frame 513.

The plurality of frames may further include a connection frame 519 and a fixed frame 520 connecting one side frame 515 and the other side frame 515 ′. The connection frame 519 may connect the third side frame 518 on one side and the third side frame 518 ′ on the other side to each other. The connection frame 519 may be provided in plural, and the connection frame provided in plural may connect the side frame 515 on one side and the side frame 515 ′ on the other side to each other. The fixed frame 520 may connect the second side frame 517 on one side and the second side frame 517 ′ on the other side to each other. Meanwhile, the supporter 700 may be coupled to the second side frame 517 on one side and the second side frame 517` on the other side. In other words, the supporter 700 may connect the second side frame 517 on one side and the second side frame 517 ′ on the other side to each other.

The connection frame 519 may support the supporter 700. The supporter 700 may be contacted and supported on the upper surface of the connection frame 519. Therefore, when a load is generated on the seat tilting module 800 by the seat of the user's seat 530, the weight of the load is distributed to at least one of the plurality of frames by the connection frame 519. Can. Therefore, there is an advantage that the durability of the standing auxiliary chair 5 is improved and the user's wearing stability is improved.

On the other hand, in another embodiment, the supporter 700 is provided in a pair, it is also possible that each supporter 700 is coupled to both sides of the seat tilting module 800. At this time, the bottom surface of the seat tilting module 800 may be supported by the connection frame 519.

In this specification, since the seat tilting module 800 is seated on the connection frame 519 and the fixed frame 520, the connection frame 519 and the fixed frame 520 are referred to as seating portions 519 and 520. Name it

15 is a perspective view showing a seat tilting module applied to a standing auxiliary chair according to a third embodiment.

Before describing FIG. 15, the direction of the seat tilting module 800 is defined.

The right side of the seat tilting module 800 shown in the figure can be understood as the front of the actual seat tilting module 800. And the left side of the seat tilting module 800 shown in the drawing can be understood as the rear of the actual seat tilting module 800. In addition, the upper side of the sheet tilting module 800 shown in the drawing may be understood as an upper side of the actual sheet tilting module 800. In addition, the lower portion of the sheet tilting module 800 shown in the drawing may be understood as a lower side of the actual sheet tilting module 800.

Hereinafter, the seat tilting module 800 will be described with reference to FIG. 15.

The seat tilting module 800 may include a rotating plate 810 on which the seat 530 is mounted. The seat 530 may be mounted on an upper surface of the rotating plate 810. The rotating plate 810 may be provided in a plate shape, for example. The rotating plate 810 may be moved upward (or stand up) from the horizontal state to the front by the four-section link 830, which will be described below. And in the process of the rotating plate 810 standing, the rotating plate 810 may be inclined forward. In addition, the rotating plate 810 may be moved downward toward the rear by the four-section link 830 in a standing state. In the process that the rotating plate 810 is moved downward toward the rear, the rotating plate 810 may be returned to a horizontal state.

The seat tilting module 800 may further include a fixing plate 820 disposed above the connection frame 519. The fixing plate 820 may be supported by the supporter 700. In addition, the fixing plate 820 may be detachably coupled to the supporter 700. In one example, the fixing plate 820 may be screwed to the supporter 700. Meanwhile, the four-section link 830 may be coupled to the fixed plate 820. Therefore, the rotating plate 810 may be moved forward or backward with respect to the fixed plate 820.

The seat tilting module 800 may further include a four-section link 830 connecting the rotating plate 810 and the fixing plate 820. The four-section link 830 may be provided in a pair. In addition, a pair of four-section links 830 may be provided on both sides of the rotating plate 810 and the fixing plate 820, respectively.

The section 4 link 830 is a third link, the third link is connected to the first link 831, a fixed link, the second link 832, and the first and second links 831, 832 are hinged. Links 833, 834 may be included. In detail, the first link 831 may be fixed to the front end side of the rotating plate 810. The second link 832 may be fixed to the rear end side of the fixing plate 820. When the rotating plate 810 is viewed with reference to a horizontal state, the first link 831 may be positioned vertically downward with respect to the rotating plate 810. In addition, the second link 832 may be positioned vertically upward with respect to the fixing plate 820. The first and second links 831 and 832 may be formed in a plate shape having a “U” shape in cross section, for example. The upper portion of the second link 832 may be hinged to the central portion of the first link 831. In addition, the lower portion of the second link 832 may be hinged to the lower portion of the first link 831.

The seat tilting module 800 may further include a gas cylinder 840 hinge-connecting between the lower portion of the rotating plate 810 and the upper portion of the fixing plate 820, and providing a driving force to the four-section link 830. have. The gas cylinder 840 is a cylinder that can be provided with a predetermined gas pressure in an internal compression space, and is hingedly connected between the upper portion of the first link 831 and the lower portion of the second link 832. It provides the driving force to the section link (830). The gas cylinder 840 may include a cylinder body 841 hinged to a lower portion of the rotating plate 810 and a piston 842 accommodated inside the cylinder body 841. The piston 842 may be connected to the standing angle adjusting device 850.

The gas cylinder 840 may be connected to a seat control lever 730 (see FIG. 24), which will be described below. Pulling the handle lever 732 of the seat control lever 730 to be described below, the size of the compression space inside the gas cylinder 840 can be varied by a predetermined gas pressure. At this time, if the force acting from the outside is less than the gas pressure, the overall length of the gas cylinder 840 increases as the compression space increases. Conversely, when the force acting from the outside is greater than the gas pressure, the length of the entire gas cylinder 840 decreases as the compression space decreases. The weight of the load may be understood as, for example, the weight of the user sitting on the seat 530.

Meanwhile, when the handle lever 732 is pulled out, the size of the compressed space inside the gas cylinder 840 may be fixed. Thus, a variable length of the gas cylinder 840 can be maintained. The pressure of the gas cylinder 840 is preferably used to fit the user's body weight and body shape, but even if the gas cylinder 840 of the same pressure is used, the installation angle and stroke of the gas cylinder 840 are adjusted to the user It can provide a standing assist motion suitable for body weight and body shape.

16 and 17 are views showing an operating state of the seat tilting module when the standing auxiliary chair is operated according to an embodiment.

As shown in FIG. 16, when the user sits on the seat, the rotating plate 810 and the fixing plate 820 are kept horizontal. At this time, the gas cylinder 840 maintains the standing angle α set with respect to the fixed plate 820.

When the user pulls the handle lever 732 and lifts the buttocks slightly, the entire length of the gas cylinder 840 increases and the gas cylinder 840 can move from FIGS. 16 to 17. At this time, while the second link 832 is fixed, the first, third, and fourth links 831, 833, and 834 are rotated around each hinge. Accordingly, the rotating plate 810 connected to the first link 831 may move upward and be inclined toward the front. In addition, the rotating plate 810 is a standing assist operation in which the seat pushes up the user's buttocks.

On the other hand, when the user pulls the handle lever 732 and simultaneously puts weight on the seat with the buttocks, the gas cylinder 840 may move from FIGS. 17 to 16 as the overall length decreases. At this time, the rotating plate 810 is moved downward and at the same time it is returned to its original state in a horizontal state. In addition, the rotating plate 810 provides a stable seating assist operation in a state where the user's buttocks are seated on the seat.

Of course, if the user releases the pull of the handle lever 732 during the standing or seating operation, the length of the gas cylinder 840 may be maintained due to the characteristics of the gas cylinder 840. Therefore, the user can stop at the desired position during the standing or sitting operation.

18 is a side view of a seat tilting module to which a standing angle adjusting device for adjusting a standing angle according to a third embodiment is applied, and FIG. 19 is a partially enlarged view of a seat tilting module showing a standing angle adjusting device according to a third embodiment to be.

17 to 19, the standing angle α between the gas cylinder 840 and the fixing plate 820 may be set by the standing angle adjusting device 850. In other words, as shown in the figure, the virtual extension line (l1`) extending in the longitudinal direction of the gas cylinder 840 by the standing angle adjusting device 850 and the longitudinal direction of the rotating plate 810 The standing angle α may be formed between the virtual extension lines 11 extending.

The standing angle adjusting device 850 may include an angle adjusting case 851 coupled to the fixing plate 820. In detail, the angle adjustment case 851 may be installed on the fixing plate 820 forming the opening 821. At least a portion of the angle adjustment case 851 may penetrate the opening 821. The angle adjustment case 851 may have a shape with an open top. For example, the angle adjustment case 851 may be formed in a'U' shape in cross section. The angle adjustment case 851 may be detachably coupled to the fixing plate 820. For example, the angle adjustment case 851 may be screwed to the fixing plate 820. In another embodiment, the angle adjustment case 851 may be formed integrally with the fixing plate 820 forming the opening 821.

A rotation opening 852 and a rotation hole 853 for setting a standing angle α between the gas cylinder 840 and the fixing plate 820 may be formed in the angle adjustment case 851. The rotating opening 854 may be formed to extend and extend in a direction intersecting with respect to the virtual extension line 1 formed on the fixing plate 820 so that the standing angle α is variable. A first rotation shaft 860 serving as a first rotation center may be penetrated through the rotation opening 854. In addition, a second rotational shaft 857 serving as a second rotational center may be penetrated through the rotation hole 853. More detailed information on which the standing angle α is set as the first center of rotation and the second center of rotation will be described later.

The standing angle adjusting device 850 may include a first rotating member 854 coupled to the gas cylinder 840. A cylinder body 841 or a piston 842 of the gas cylinder 840 may be coupled to the first rotating member 854. For example, when the piston 842 is coupled to the first rotating member 854, the cylinder body 841 may be coupled to the rotating plate 810. As another example, when the cylinder body 841 is coupled to the first rotating member 854, the piston 842 may be coupled to the rotating plate 810. A first through hole 854a through which the first rotation shaft 860 passes may be formed in the first rotation member 854. The first through hole 854a may be formed on one surface of the first rotating member 854 and the other surface facing the one surface, respectively. In addition, the first rotating member 854 and the gas cylinder 840 may rotate with a first rotational shaft 860 inserted into the first through hole 854a as a first rotational center.

The standing angle adjusting device 850 may further include a second rotating member 855 positioned between the first rotating member 854 and the angle adjusting case 851. A second through hole (not shown) through which the first rotation shaft 860 passes may be formed in the second rotation member 855. The second through hole (not shown) may be formed on one surface of the second rotating member 855 and the other surface facing the one surface. In addition, the first rotation shaft 860 may penetrate the first through hole 854a and the second through hole (not shown).

The first rotation shaft 860 may include a bolt 861 and a nut 862 to act as a support shaft for rotation. The second rotating member 855 may connect the first rotating member 854 and the standing angle adjusting lever 868 for adjusting the standing angle α. To this end, a third through hole 855b through which the second rotation shaft 867 coupled to the standing angle adjustment lever 868 may pass may be formed in the second rotation member 855. The third through hole 855b may be formed on one surface of the second rotating member 855 and the other surface facing the one surface, respectively. The second rotation shaft 867 may penetrate the rotation hole 853 and the third through hole 855b. In addition, when the second rotating shaft 867 is rotated by the standing angle adjusting lever 868, the second rotating member 855 and the first rotating member 854 rotate the second rotating shaft 857 to the second It can be rotated around the center of rotation.

For example, when the second rotating shaft 867 rotates in the first direction (clockwise on the drawing), the second rotating member 855 and the first rotating member 854 may include the second rotating shaft 857 ) May be rotated in the first direction. At this time, the first rotating member 854 and the first rotating shaft 860 may be moved upward along the rotating opening 852. At this time, the standing angle α may be increased.

Conversely, when the second rotating shaft 867 rotates in a second direction (ccw, counterclockwise in the drawing) opposite to the first direction, the second rotating member 855 and the first rotating member 854 ) May rotate in the second direction about the second rotation axis 867. At this time, the first rotating member 854 and the first rotating shaft 860 may be moved downward along the rotating opening 852. At this time, the standing angle α may be reduced.

Meanwhile, a plurality of locking grooves 852a, 852b, and 852c may be formed in the rotary opening 852 to maintain the standing angle α set by the second rotational center rotation of the gas cylinder 840. have. Each of the plurality of locking grooves 852a, 852b, and 852c may be formed by opening downward from the rotary opening 852. The plurality of locking grooves 852a, 852b, and 852c may include a second locking groove 852a formed at the center of the rotary opening 852. In addition, the plurality of locking grooves 852a, 852b, and 852c may further include a first locking groove 852a formed on an upper portion of the rotary opening 852. The second locking groove 852a may be formed above the second locking groove 852b. The plurality of locking grooves 852a, 852b, and 852c may further include a third locking groove 852c formed below the rotary opening 852. The third locking groove 852c may be formed below the second locking groove 852b.

The gas cylinder 840, the first rotating member 854, and the second rotating member 855 may be rotated to the second rotation center by the operation of the standing angle adjustment lever 868. At this time, the first rotating shaft 860 penetrating the first rotating member 854 and the second rotating member 855 may move upward or downward along the rotary opening 852. In addition, the first rotation shaft 860 may be engaged with any one of the plurality of locking grooves 852a, 852b, and 852c. When the first rotation shaft 860 is engaged in any one of the plurality of locking grooves 852a, 852b, and 852c, the standing angle α may be maintained.

In the present specification, the standing angle α formed by the first rotating shaft 860 being engaged with the third locking groove 852c is referred to as a first set angle d1. The standing angle α formed by the first rotational shaft 860 being engaged with the second locking groove 852b is referred to as a second setting angle d2. The standing angle α formed by the first rotational shaft 860 engaging the first locking groove 852a is referred to as a third set angle d3.

The first set angle d1 may be greater than the second set angle d2. In addition, the second set angle d2 may be greater than the third set angle d3.

The user can manually adjust the standing angle α using the first center of rotation.

In addition, the user can set the standing angle α to any one of a plurality of preset angles (for example, the first to third set angles) using the second rotation center, so that it is suitable for the body's weight quickly. The standing angle α can be set. The set standing angle α is adjusted to the locking groove so that the position is fixed to a preset value.

20 is a graph showing the vertical force of the gas cylinder according to the stroke change according to the third embodiment.

Before explaining FIG. 20, the configuration of the graph shown in FIG. 20 will be described.

The X-axis means the stroke change of the gas cylinder 840.

Y-axis means the vertical force applied to the gas cylinder 840.

The rhombus graph shows the magnitude of the vertical force according to the stroke change of the gas cylinder 840 at the first set angle d1 when the set weight is applied to the rotating plate 810. The square graph shows the magnitude of the vertical force according to the stroke change of the gas cylinder 840 at the second set angle d2 when the set weight is applied to the rotating plate 810. The circle graph shows the magnitude of the vertical force according to the stroke change of the gas cylinder 840 at the third set angle d3 when the set weight is applied to the rotating plate 810.

16, 17 and 20, when the X-axis value is S1, each graph represents a state in which the gas cylinder 840 is extended. In other words, when the X-axis value is S1, the rotating plate 810 is moved upward toward the front. And the user may be in a standing state. In this embodiment, S1 may be '0' as a default value with no stroke change.

On the other hand, when the X-axis value is S11, each graph means a state in which the gas cylinder 840 is compressed due to a load applied to the rotating plate 810. In other words, when the X-axis value is S11, the rotating plate 810 may be in a horizontal state. In addition, the user may be seated in the seat 530.

The larger the vertical angle α, the larger the vertical force of the gas cylinder 840 applied to the rotating plate 810 (or sheet 530). For example, when the standing angle α is the first set angle d1, the magnitude of the vertical force of the gas cylinder 840 is largest. In addition, as the standing angle α increases to the second set angle d2 and the third set angle d3, the magnitude of the vertical force gradually decreases. Accordingly, when the standing angle α is the first set angle d1, the lifting force applied to the rotating plate 810 or the seat 530 may be greater than when the set angles d2 and d3 are different. In addition, as the standing angle α becomes smaller and smaller, a rising force applied to the rotating plate 810 and the seat 530 may increase.

Accordingly, the heavier the user's weight, the higher the vertical angle of the gas cylinder 840 by increasing the standing angle α. Accordingly, the user can stand up easily.

Alternatively, the lighter weight of the user may reduce the vertical angle of the gas cylinder 840 by reducing the standing angle α. Accordingly, the user can stand up stably. In summary, the standing angle α can be adjusted according to the user's weight, thereby providing a more stable standing assist operation to the user.

21 is a partially enlarged view of the standing auxiliary chair for explaining the coupling structure between the supporter and the standing auxiliary chair according to the third embodiment.

14 and 21, the supporter 700 may include a supporter body 701 forming an exterior. The supporter body 701 may be provided with an open top. In one example, the supporter body 701 may have a'U' shape. The seat tilting module 800 may be seated and supported on the supporter body 701. The seat tilting module 800 may be detachably coupled to the supporter body 701.

The supporter 700 may further include a supporter fixing member 702 for fitting the supporter body 701 to the standing auxiliary chair 50. The supporter fixing member 702 may have an approximately `┐` shape. It may be fitted to the fixed frame 520. Since the supporter body 701 can be fitted to the fixing frame 520 by the supporter fixing member 702, the user can easily mount or detach the seat tilting module 800 on the chair body 50. I can do it.

In this embodiment, it is described that the supporter fixing member 702 is coupled to the fixing frame 520. However, in another embodiment, the fixing frame 520 is omitted, and it is also possible that the supporter fixing member 702 is fitted to the second side frame 517.

Meanwhile, the supporter 700 may further include a locking device 710 capable of selectively restraining or restraining the fitting of the supporter fixing member 702. The supporter fixing member 702 may be constrained by the locking device 710 while being fitted to the fixing frame 520. In this case, it is possible to reduce the phenomenon that the fitting engagement of the supporter fixing member 702 is released due to external impact or attraction.

The locking device 710 may include a pressing portion 713 for releasing the fitting of the supporter fixing member 702 in a restrained state. In addition, the locking device 710 may further include a device housing 711 in which at least a portion of the pressing portion 713 is accommodated. When the pressing portion 713 is pressed, the pressing portion 713 may be introduced into the device housing 711. And the lock of the locking device 710 may be released. Accordingly, the fitting of the supporter fixing member 702 can be released.

The locking device 710 may further include a device fixing part 712 for fixing the device housing 711 to the supporter body 701. The device fixing part 712 may be screwed to at least one of the supporter body 701 and the device housing 711. Alternatively, the device fixing part 712 may be integrally formed with at least one of the device housing 711 and the supporter body 701.

FIG. 22 is a partial side view of a standing auxiliary chair for explaining a state in which the seat tilting module according to the third embodiment is mounted on the standing auxiliary chair, and FIG. 23 is a lock so that the seat tilting module is detached from the standing auxiliary chair in FIG. 22. It is a view showing a state in which the pressing portion of the device is pressed.

22 and 23, at least a portion of the pressing portion 713 may be accommodated inside the device housing 711. In detail, the cross section of the pressing portion 713 may have a substantially trapezoidal shape. When pressed, the pressing portion 713 may include a pressing portion contact surface 714 that slides on at least one surface of the locking portion 715, which will be described later. More details of the locking portion 715 will be described later.

The locking device 710 may further include a locking portion 715 whose position is changed by the pressing portion 713. The locking portion 715 may have a shape extending downward to gradually narrow the area. In one example, the cross section of the locking portion 715 may be formed in a substantially trapezoidal shape. When the pressing portion 713 is not pressed, at least a portion of the locking portion 715 may maintain a state protruding to the outside. In other words, when the pressing part 713 is not pressed, the locking part 715 may maintain a protruding state in a direction to close the fixing frame 520 in the device housing 711.

Meanwhile, a lock portion groove 716 into which the pressing portion 713 can be inserted may be formed in the lock portion 715. A lock portion first contact surface 717 through which the pressing portion contact surface 714 can slide may be formed in the lock portion groove 716. The first contact surface 717 of the locking portion may have a shape in which the contact surface 714 of the pressing surface is inclined in a direction opposite to the inclined direction in order to contact the pressing portion contact surface 714.

When the pressing portion 713 is pressed, the pressing portion 713 may be lowered (on the drawing). At this time, while the pressing portion contact surface 714 is sliding on the locking portion first contact surface 717, the locking portion 715 may be moved rearward (rightward in the drawing). When the pressing portion 713 is pressed to the maximum, the locking portion 715 may be accommodated in the device housing 711. Accordingly, the locking of the locking device 710 may be released so that the fitting coupling between the supporter fixing member 702 and the fixing frame 520 can be disengaged.

The locking portion 715 may further include a locking portion second contact surface 719 for fitting the fixing frame 520 and the supporter body 701. As another example, when the fixing frame 520 is fitted to the locking portion 715, the fixing frame 520 is sliding to the second contact surface 719 of the locking portion while being fitted to the supporter fixing member 702. Can be. Meanwhile, in the process of sliding the fixed frame 520 to the second contact surface 719 of the lock portion, the lock portion 715 may be moved rearward.

The locking device 710 may further include an elastic member 718 for restoring the lock portion 715 having a variable position to its original position. The elastic member 718 may be disposed between the locking portion 715 and the device housing 711. When the position of the locking portion 715 is changed, a restoring force may be accumulated in the elastic member 718. The elastic member, for example, may include a compression spring.

For example, when the locking part 715 is moved to the rear of the device housing 711 by the pressing of the pressing part 713, the locking part 715 can compress the elastic member 718. . Therefore, a restoring force may be accumulated in the elastic member 718. When the pressing force of the pressing portion 713 is blocked, the restoring force accumulated in the elastic member 718 may be provided to the locking portion 715. Therefore, the locking portion 715 can be restored to its original position. At this time, a stopper (not shown) may be provided inside the device housing 711 to prevent the locking part 715 from protruding outside the device housing 711.

As another example, in the process of the fixing frame 520 sliding on the second contact surface 719 of the locking portion, the locking portion 715 may be moved to the rear of the device housing 711. In addition, the locking portion 715 can compress the elastic member 718. Therefore, a restoring force may be accumulated in the elastic member 718. When the supporter fixing member 702 is fitted to the fixing frame 520, external force applied to the locking portion 715 may be blocked. Therefore, the locking portion 715 may be restored to its original position by the restoring force of the elastic member 718.

In addition, in this embodiment, since the seat tilting module 800 can be detachably mounted on the fixed frame 520, it can be applied to various types of chairs.

In this embodiment, the wheelchair is folded, stored or transported during storage or transport. At this time, since the seat tilting module 800 can be easily separated from the wheelchair, the user can fold the wheelchair for storage or transportation. That is, since the seat tilting module 800 can be detachably mounted on the wheelchair, the wheelchair has an advantage of easy storage and transportation.

24 is a view showing a part of an upright assisting chair for explaining a plurality of levers provided in the upstanding assisting chair according to the third embodiment, and FIG. 25 is an upstanding assisting chair showing the seat control lever according to the third embodiment It is a partially enlarged view, and FIG. 26 is a schematic view showing a height adjustment lever applied to a standing auxiliary chair according to the third embodiment.

24 to 26, a seat control lever capable of manipulating the length of the gas cylinder 840 of the seat tilting module 800 is attached to any one of the first to third side frames 516, 517, and 518. 730 may be provided. For example, the seat control lever 730 may be provided on the second side frame 517.

The seat control lever 730 may include a handle lever 732 for manipulating the length of the gas cylinder 840. The handle lever 732 may have a lever shape that can be operated by a user's hand. In addition, the handle lever 732 is configured to be pulled by a user's hand.

The seat control lever 730 may further include a seat lever case 731 in which the handle lever 732 is accommodated. The seat lever case 731 may be installed on the second side frame 517. Meanwhile, the seat lever case 731 may be detachably mounted to any one of the first to third side frames 516, 517, and 518. Since the position of the seat lever case 731 can be changed according to a user's preference, there is an advantage of improving user convenience. For example, when the user is the left hand, the seat lever case 731 may be mounted on a frame located on the left side of the chair body.

The seat control lever 730 may further include a wire 733 connecting the handle lever 732 and the gas cylinder 840. The wire 733 is provided to transmit the movement of the handle lever 732 to the lever 734 of the gas cylinder 840. The wire 733 is preferably embedded so as not to be exposed to the outside.

When the user pulls the handle lever 732, a force pulling the handle lever 732 may be transmitted to the lever 734 of the gas cylinder 840 by the wire 733. When the force pulling the handle lever 732 is transmitted to the lever 734 of the gas cylinder 840, a predetermined gas pressure may be provided to the internal compression space of the gas cylinder 840. In addition, the entire length of the gas cylinder 840 may be changed according to the amount of force provided from the outside. Accordingly, the seat tilting module 800 may assist the user in standing or sitting.

On the other hand, when the user stops pulling the handle lever 732, the lever 734 of the gas cylinder 840 may be returned to the original state by the wire 733. Accordingly, the size of the internal compression space of the gas cylinder 840 may be fixed. In addition, the entire length of the gas cylinder 840 may be fixed. Accordingly, the standing or seating operation of the seat tilting module 800 can be stopped.

Meanwhile, the seat control lever 730 may further include a brake adjustment device 740 capable of stopping the movement of the wheel 60.

The brake adjusting device 740 further includes a brake lever 742 capable of stopping the movement of the wheel 60 by a user's manipulation, and a brake lever case 741 in which the brake lever 742 is accommodated. can do. The brake lever case 741 may be installed on the second side frame 517 as an example.

<Example 4>

The fourth embodiment will be described below.

This embodiment reveals that there is a difference in the structure in which the seat tilting module is mounted on the chair body in comparison with the third embodiment.

In this embodiment, detailed description of the same configuration as in the third embodiment is omitted. Note that, in this embodiment, reference numerals having the same configuration as the third embodiment are used.

FIG. 27 is a partially enlarged view of the standing auxiliary chair as viewed from the front according to the fourth embodiment, and FIG. 28 is a partially enlarged view of the standing auxiliary chair as viewed from the side according to the fourth embodiment, and FIG. 29 is the fourth embodiment It is a perspective view showing a plurality of frames constituting the chair body.

27 to 29, the standing auxiliary chair 5 according to the fourth embodiment of the present invention may include a chair body 50 formed of a plurality of frames.

The plurality of frames may include a pair of support frames 510 and 510` forming the appearance of the standing auxiliary chair 5. The support frame 510 includes first support frames 511 and 511`, second support frames 512 and 512 ′ spaced apart from the first frames 511 and 511`, and a handle 513 can do.

The plurality of frames form a side surface, and may include a side frame 515 connecting the first support frame 511 and the second support frame 512. The side frame 515 includes a first side frame 516 and a second side frame (516) connecting the upper, central, and lower portions of the first support frame 511 and the second support frame 512, respectively. 517) and a third side frame 518.

The chair body 50 may further include a seating portion 550 disposed between the side frame 515 on one side and the side frame 515 ′ on the other side. A seat (not shown) for seating of the user may be positioned on the seating portion 550. In addition, a seat tilting module 800 may be disposed between the seat and the seating portion 550 to assist the standing and seating of a user seated in the seat. More details of the seat tilting module 800 will be described later.

The seating portion 550 may include a fixed frame 551 disposed between the side frame 515 on one side and the side frame 515 ′ on the other side, respectively. The fixed frame 551 may be provided in plural. In addition, the plurality of fixed frames 551 may be disposed adjacent to the second side frame 517 and the three side frame 518. In detail, the plurality of fixed frames 551 may include first to fourth fixed frames 552, 553, 554, and 555. The first fixed frame 552 and the second fixed frame 553 may be disposed adjacent to the pair of second side frames 517 and 517`, respectively. In addition, the third fixed frame 554 and the fourth fixed frame 555 may be disposed adjacent to each of the pair of third side frames 518 and 518`.

The seating portion 550 further includes a fixing portion 556 for fixing the third fixing frame 554 and the fourth fixing frame 555 to each of the pair of third side frames 518 and 518`. It can contain.

The seating portion 550 may include a connection frame 561 connecting one of the plurality of fixed frames 552 to 554 with the other. The connection frame 561 may have an approximately `Ｘ` shape. For example, the connection frame 561 may have a shape in which one frame and the other frame intersect each other. In addition, the inner surfaces intersecting each other of the one frame and the other frame may be hinged to be folded or unfolded. For example, when one frame and the other frame of the connection frame 561 are folded, the connection frame 561 may have an approximately'I' shape. At this time, the chair body 50 may be understood to be folded. Accordingly, the user can more easily carry the standing auxiliary chair 5. As another example, when one frame and the other frame of the connection frame 561 rotate in a direction away from each other, the connection frame 561 may have an approximately'X' shape. At this time, the chair body 50 may be understood to be unfolded (or installed) so that the user can sit down.

Meanwhile, a plurality of connection frames 561 may be provided. For example, the connection frame 561 may include a first connection frame 562 and a second connection frame 563. The first connection frame 562 may connect the first fixed frame 552 and the fourth fixed frame 555. In addition, the second connection frame 563 may connect the second fixed frame 553 and the third fixed frame 554.

The first connection frame 562 and the second connection frame 563 may be disposed spaced apart from each other. For example, the first connection frame 562 and the second connection frame 563 are in the front-rear direction (or a pair of second side frames 517) of the pair of second side frames 517 and 517`. , 517`) in a long extending direction).

The seating portion 550 may further include an auxiliary frame 571 connecting the first connection frame 562 and the second connection frame 563 to each other. The auxiliary frame 571 may be provided in a pair. For example, the auxiliary frame 571 may include a first auxiliary frame 572 and a second auxiliary frame 573 spaced apart from the first auxiliary frame 572. Seats on which the user can sit may be disposed on the first and second auxiliary frames 572 and 573. In addition, a seat tilting module 800 may be disposed between the seat and the first and second auxiliary frames 572 and 573 to assist a user standing in the seat. The seat tilting module 800 may be detachably mounted on the first and second auxiliary frames 572 and 573. Since the seat tilting module 800 is easily detached and mounted on the standing auxiliary chair 5, maintenance of the seat tilting module 800 is easy. More details of the seat tilting module 800 will be described later.

30 is a perspective view of the seat tilting module according to the fourth embodiment.

Referring to FIG. 30, the seat tilting module 800 may include a rotating plate 810 on which the sheet is mounted, and a fixing plate 820 positioned on the seating portion 550. The section 4 link 830 is a third link, the third link is connected to the first link 831, a fixed link, the second link 832, and the first and second links 831, 832 are hinged. Links 833, 834 may be included.

The seat tilting module 800 may further include a gas cylinder 840 hinge-connecting between the lower portion of the rotating plate 810 and the upper portion of the fixing plate 820, and providing a driving force to the four-section link 830. have. The gas cylinder 840 is hinged between the upper portion of the first link 831 and the lower portion of the second link 832 to provide a driving force to the four-section link 830. The gas cylinder 840 may include a cylinder body 841 hinged to a lower portion of the rotating plate 810 and a piston 842 accommodated inside the cylinder body 841.

The gas cylinder 840 may be connected to a seat control lever 730 (shown in FIG. 24), which will be described below. Pulling the handle lever 732 of the seat control lever 730 to be described below, the size of the compression space inside the gas cylinder 840 can be varied by a predetermined gas pressure.

Meanwhile, when the handle lever 732 is pulled out, the size of the compressed space inside the gas cylinder 840 may be fixed. Thus, a variable length of the gas cylinder 840 can be maintained.

In the lower portion of the seat tilting module 800, a lower locking device 750 for mounting and fixing to the seating portion 550 may be additionally provided. The lower locking device 750 may be coupled to the fixing plate 820. In addition, the lower locking device 750 may be fixed (or constrained) so that the fixing plate 820 mounted on the seating portion 550 is not separated.

The lower locking device 750 may include a device housing 751 forming an exterior. The device housing 751 is provided in a pair, and may have an'U' shape with one surface open. In addition, each of the pair of device housings 751 may be disposed at a position corresponding to each of the pair of four-section links 830.

In this embodiment, the device housing 751 is described as being provided as a pair, but the device housing 751 may be formed integrally.

Meanwhile, the device housing 751 may include a mounting opening 753 to which the auxiliary frame 571 can be mounted (or inserted). In order to mount the auxiliary frame 571, a plurality of the mounting openings 753 may be formed in a direction in which the auxiliary frame 571 is extended (or in the front-rear direction of the device housing 751 ).

The lower locking device 750 may further include a rotating mechanism 760 capable of selectively opening and closing the mounting opening 753. The rotating mechanism 760 may be provided in plural, and may be provided in a number corresponding to the number of the mounting openings 753. The rotating mechanism 760 may rotate with one point of the device housing 751 as a center point. In detail, the rotation mechanism 760 may rotate clockwise or counterclockwise with the first projection 751a as the center of rotation.

The lower locking device 750 may further include a connecting member 752 connecting the rotating mechanism 760 provided in plural. The rotating mechanism 760 provided in plural by the connecting member 752 may be interlocked together. For example, when any one of the plurality of rotating mechanisms 760 is moved in the clockwise direction, the remaining rotating mechanism 760 may be moved together in the clockwise direction by the connecting member 752.

The lower locking device 750 may further include an elastic member 754 that restores the variable position of the rotating mechanism 760. The elastic member may connect the rotating mechanism 760 and the device housing 751. The elastic member 754, for example, may include a tension spring. When the rotating mechanism 760 is rotated by the external force in the first direction (the direction in which the mounting opening 753 is opened), a restoring force may be accumulated in the elastic member 754. And when the external force provided to the rotating mechanism 760 is blocked, the rotating mechanism 760 is rotated in a second direction (the direction in which the mounting opening 753 is closed) opposite to the first direction by the restoring force. Can. Accordingly, the rotating mechanism 760 can be restored to its original position.

In this embodiment, the first direction can be understood as the outer direction of the device housing 751. Also, the second direction may be understood as a direction toward the center of the device housing 751.

In this embodiment, when the rotating mechanism 760 is rotated in one direction, the rotating mechanism 760 may rotate in the other direction by the restoring force of the elastic member 754. Meanwhile, as another embodiment, the elastic member 754 is omitted, and the rotating mechanism 760 rotated in one direction can rotate in the other direction by its own weight. For example, when the rotating mechanism 760 is mounted on the mounting opening 753, the rotating mechanism 760 may rotate in the second direction by its own weight. As another example, when the rotating mechanism 760 is separated from the mounting opening 753, the rotating mechanism 760 rotated in the first direction may be rotated in the second direction by its own weight.

When the locking portion 765 is rotated in the second direction while the auxiliary frame 571 is mounted on the mounting opening 753, the mounting opening 753 is closed by the locking portion 765. Can. At this time, the auxiliary frame 571 may be fixed to the lower locking device 750. Conversely, when the locking portion 765 is rotated in the first direction by the elastic member 754, the mounting opening 753 may be opened. In this case, the auxiliary frame 571 mounted on the mounting opening 753 may be separated from the mounting opening 753.

FIG. 31 is a partially enlarged view showing the lower locking device of the seat tilting module according to the fifth embodiment, and FIG. 32 is a partially enlarged view showing the lower locking device in FIG.

31 and 32, the device housing 751 may include a first protrusion 751a protruding inward. The first protrusion 751a may penetrate a point of the rotating mechanism 760. For example, the first protrusion 751a may be inserted into a hole 762 formed in the center of the rotating mechanism 760.

The rotating mechanism body 761 may further include a second protrusion 751b to which one side of the elastic member 754 is fixed. The second protrusion 751b may be formed to protrude toward the inside of the device housing 751.

The rotating mechanism 760 may include a rotating mechanism body 761 forming an appearance. The rotating mechanism body 761 may include the hole 762 through which the first protrusion 751a is inserted. The hole 762 may be formed in the center of the rotating mechanism body 761 as an example. The rotating mechanism body 761 may be rotated in a clockwise or counterclockwise direction while being inserted into the first protrusion 751a.

The rotating mechanism body 761 may further include a locking portion protrusion 764 that fixes the other side of the elastic member 754. Since one side of the elastic member 754 is fixed to the device housing 751 and the other side is fixed to the rotating mechanism body 761, the rotating mechanism body 761 restores the restoring force by the elastic member 754. Can be provided.

The rotating mechanism body 761 may further include a locking portion 765 that selectively opens and closes the mounting opening 753. The locking portion 765 may be formed to be rounded at a predetermined curvature from the rotating mechanism body 761. The locking portion 765 may be formed to be round toward the center of the rotating mechanism body 761. In other words, the locking portion 765 may be formed to be rounded in a direction to close the mounting opening 753.

The locking portion 765 may include a locking portion first surface 765a forming an inner surface and a locking portion second surface 765b forming an outer surface. The first surface 765a of the locking portion and the second surface 765b of the locking portion may be formed to be rounded toward the mounting opening 753.

In summary, the rotary mechanism 760 of the lower locking device 750 can open or close the mounting opening 753. For example, by an external force, the rotating mechanism 760 may be rotated in the first direction. Therefore, the mounting opening 753 can be opened. Therefore, the auxiliary frame 571 may be mounted on the mounting opening 753. Conversely, when the external force is blocked, the rotation mechanism 760 may be rotated in the second direction by the restoring force. Therefore, the mounting opening 753 may be closed by the rotating mechanism 760. That is, an installation space in which the auxiliary frame 751 can be mounted may be formed between the mounting opening 753 and the rotating mechanism 760. When the auxiliary frame 571 is mounted on the mounting space, the auxiliary frame 751 may be restrained from being disengaged from the mounting opening 753 by the locking portion 765.

The auxiliary frame 571 may be fixed by the mounting opening 753 and the rotating mechanism 760.

Hereinafter, a process in which the seat tilting module is mounted and detached from the standing auxiliary chair will be described.

33 to 35 are partial enlarged views showing a process in which the seat tilting module is mounted to the standing auxiliary chair.

33 to 35, the seat tilting module 800 may be mounted on the seating portion 550 of the standing auxiliary chair 50. At this time, the lower locking device 750 of the seat tilting module 800 may be mounted on the auxiliary frame 571 of the seating portion 550. In detail, in the process in which the lower locking device 750 is mounted on the seating portion 550, the locking portion 765 of the lower locking device 750 contacts the outer circumferential surface of the auxiliary frame 571. At this time, the second surface 765b of the locking portion slides toward the outside of the device housing 751 while being in contact with the auxiliary frame 765b. In other words, the locking portion 765 rotates in the first direction. Accordingly, the mounting opening 753 is opened, and the auxiliary frame 571 may be mounted (or inserted) into the mounting opening 753.

In the process in which the auxiliary frame 571 is mounted on the mounting opening 753, a restoring force may be accumulated in the elastic member (see 754 of FIG. 32).

When the auxiliary frame 571 is mounted on the mounting opening 753, the restoring force of the elastic member 754 may be provided to the locking portion 765. Therefore, the locking portion 765 rotates in the second direction by the restoring force. Here, when the auxiliary frame 571 is installed, the auxiliary frame 571 is inserted into the mounting opening 753 so that the auxiliary frame 571 is no longer on the second surface 765b of the locking portion. It can be understood as not being contacted.

When the first surface 765a of the locking portion contacts the outer circumferential surface of the auxiliary frame 571, rotation in the second direction of the locking portion 765 may be limited. Accordingly, the auxiliary frame 571 may be fixed by the locking portion 765 and the mounting opening 753.

36 is a partially enlarged view showing a process in which the seat tilting module is separated from the standing auxiliary chair.

Referring to FIG. 36, the always-tilt seat module 800 may be separated from the seating portion 550 of the standing auxiliary chair 50. In one example, when the user provides a force to the connecting member 572 in an upward direction (opposite to the direction of gravity), the connecting member 572 moves to the inside (second direction) of the device housing 751 Can be. In addition, the locking part 765 may open the mounting opening 753 while moving toward the outside (first direction) of the device housing 751.

According to this action, the user releases the seat tilting module 800 and unlocks the locking means of the seat tilting module 800 (lower locking device 750) and separates the seat tilting module 800 in a single operation. Actions can be performed together.

As another example, the user may provide a pressing force so that the connecting member 572 moves inside the device housing 751. Accordingly, the connecting member 572 may be moved inside the device housing 751, and the locking portion 765 may be moved outside the device housing 751. Therefore, the mounting opening 753 can be opened. When the mounting opening 753 is opened, the lower locking device 750 of the seat tilting module 800 may be separated from the auxiliary frame 571 of the seating portion 550.

According to this action, the direction in which the user applies the force is primarily to change the direction of the force applied to the inside of the device housing 751 and thereafter to the upper side, thereby unlocking the locking means of the seat tiling module 800. And separating action of the seat tilting module 800. However, the change in direction of the force may be insignificant to the user's perception.

Meanwhile, in the process in which the seat tilting module 800 is separated from the seating portion 550, a restoring force may be accumulated in the elastic member (see 754 of FIG. 32 ). When the auxiliary frame 571 is completely separated (or detached) from the mounting opening 753, the restoring force may be provided to the locking portion 765. Therefore, the locking portion 765 can rotate in the second direction. Here, when the auxiliary frame 571 is completely separated, the auxiliary frame 571 is completely separated from the mounting opening 753, so that the auxiliary frame 571 is further provided on the first surface 765a of the locking portion. It can be understood that no abnormal contact has been made.

<Fifth Example>

The fifth embodiment will be described below.

This embodiment is characterized in that the seat tilting module is applied to the reclining chair compared to the previous embodiments.

In this embodiment, reference numerals for the same configuration are used in comparison with the third embodiment.

37 is a perspective view of a standing auxiliary chair according to the fifth embodiment.

Referring to FIG. 37, the reclining chair 9 according to the fifth embodiment includes a leg portion 910, a seat 920, a backrest portion 930, and a pair of armrest portions 940 and 950, It is configured to include a seat tilting module 800 and a seat control lever 730. In addition, the reclining chair 9 has a backrest rotation module (not shown) for rotating the backrest part 930 with respect to the seat 920, and a backrest rotation module control lever 980 for controlling the backrest rotation module. It may further include.

The leg portion 910 may support the sheet 920 in a substantially horizontal shape at a predetermined height from the lower side. The leg portion 910 may be provided as a plurality of frames, and the plurality of frames may be disposed in a form surrounding the sheet 920. A seat tilting module 800 may be disposed above the leg 910.

The seat 920 is a seat plate to which a user can sit, and is configured to provide a predetermined cushion to sit comfortably. The seat 920 is installed so as to be erected by the rotating plate 810 (shown in FIG. 15) of the seat tilting module 800 so as to be tilted forward, and whether it is upright can be determined by a seat control lever (not shown). have.

The backrest portion 930 is provided to allow the user to lean back, and is similarly configured to provide a predetermined cushion to lean comfortably. In addition, the backrest portion 930 is mounted in a vertical state or inclined rearward to the upper side of the leg portion 910, to be installed behind the fixed plate 820 (shown in FIG. 15) of the seat tilting module 800. Can.

The deployment angle of the backrest part 930 with respect to the seat 920 may be varied by the backrest rotation module (not shown). The deployment angle may be understood as an angle formed between one surface of the sheet 920 and one surface of the backrest portion 930 adjacent to the sheet 920. The deployment angle of the backrest part 930 may be controlled stepwise or steplessly by the backrest angle adjustment lever 980. In the state in which the backrest angle adjustment lever 980 is pulled, the deployment angle of the backrest part 930 may be changed by an external force. In addition, when the backrest angle adjustment lever 960 is in an initial position (not in a pulled state), the backrest part 930 may maintain the deployment angle.

The armrest parts 940 and 950 are provided to place the user's hands and arms, and are composed of a right armrest part 940 and a left armrest part 950 on both sides of the seat 920, described below. It is installed to be fixed to the seat tilting module 800 to be. In this embodiment, the right armrest 940 is configured to expose the handle lever of the seat control lever 730 to be described below.

The reclining chair 9 may further include a leg support 960 and a leg support control lever (not shown). The leg support 960 is provided to allow a user to raise a leg, and is similarly configured to provide a predetermined cushion to comfortably raise it. In addition, the leg support 960 may be mounted to be vertically downward in front of the seat 920. The reclining chair 9 is installed to be rotatable in a horizontal direction as a separate leg rest rotation module (not shown) is mounted, and its standing angle is adjusted by the leg rest control lever. The leg support control lever (not shown) is provided to adjust the standing angle of the leg support 960, likewise, it may be installed such that some handle levers are exposed on the left armrest 950. In addition, the legrest control lever may be connected to control the operation of a separate legrest rotation module.

The seat tilting module 800 is a type of module, and is fixed to the upper portion of the leg portion 910, and is configured to mount the seat 920, the backrest portion 930, and the leg support, thereby contributing to the existing chair configuration. By applying, it is possible to implement a standing auxiliary chair that can easily rotate the seat 920 forward. Of course, the seat tilting module 800 can control its operation by the seat control lever 730.

The seat control lever 730 is provided to adjust the standing angle of the seat tilting module 800. The right armrest 940 is installed so that the seat control lever 730 is exposed, and the seat control lever 730 is directly connected to a gas cylinder 840 (shown in FIG. 15) of the seat tilting module 800. Can be.

Features, structures, effects, etc. described in the above embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, features, structures, effects, and the like exemplified in each embodiment may be combined or modified for other embodiments by a person having ordinary knowledge in the field to which the embodiments belong. Therefore, it should be interpreted that contents related to such combinations and modifications are included in the scope of the present invention.

In addition, although the embodiments have been mainly described above, these are merely examples and do not limit the present invention, and those skilled in the art to which the present invention pertains are exemplified above in a range that does not depart from the essential characteristics of the present embodiment. It will be appreciated that various modifications and applications are possible. For example, each component specifically shown in the embodiments can be implemented by modification. And differences related to these modifications and applications should be construed as being included in the scope of the invention defined in the appended claims.

Claims (10)

A seat on which the user can sit;
A chair body on which the seat is mounted;
A seating portion forming a lower portion of the chair body; And
It is disposed between the seat and the seating portion, and includes a seat tilting module to drive the seat upright and tilted forward,
The seat tilting module includes a lower locking device so that the seat tilting module is detachably locked and mounted on the seating portion,
The lower locking device,
A device housing having a mounting opening into which the seating portion can be inserted,
It is rotatably coupled to the device housing, and includes a rotating mechanism for selectively opening and closing the mounting opening,
When the seat tilting module is mounted on the seating portion, the rotating mechanism slides to the seating portion to open the mounting opening.
delete According to claim 1,
The mounting opening and the rotating mechanism are provided in plural,
A standing auxiliary chair, characterized in that the rotating mechanism is disposed in each of the plurality of mounting openings.
The method of claim 3,
Further comprising a connecting member for connecting a plurality of rotating mechanisms to each other,
The standing auxiliary chair, characterized in that the plurality of rotating mechanisms are interlocked by the connecting member.
According to claim 1,
The seating portion,
Supporting the seat tilting module, a plurality of connection frames spaced apart from each other,
It includes an auxiliary frame connecting the plurality of connection frames to each other,
The auxiliary frame is a standing auxiliary chair, characterized in that selectively restrained or released by the lower locking device.
The method of claim 5,
The connection frame includes a pair of frames,
Standing pair of chairs, characterized in that the pair of frames are formed to cross each other.
According to claim 1,
The seat tilting module,
The rotating plate attached to the lower portion of the sheet,
And a fixed plate horizontally located under the rotating plate,
A standing auxiliary chair provided between the rotating plate and the fixing plate and including a four-section link interlocking the rotating plate so that the rotating plate can be inclined toward the front.
The method of claim 7,
The lower locking device is a standing auxiliary chair, characterized in that coupled to the fixed plate.
A seat on which the user can sit;
A chair body on which the seat is mounted;
A seat tilting module that drives the seat upright and tilts forward;
A seating part forming a lower portion of the chair body and having a connection frame supporting the seat tilting module; And
It is provided on the lower portion of the seat tilting module and includes a lower locking device detachably mounted to the connection frame,
The lower locking device,
A device housing in which a plurality of mounting openings into which the connection frame can be inserted are formed,
A plurality of rotating mechanisms rotatably coupled to the device housing and selectively opening and closing the mounting opening,
It includes a connecting member for connecting the plurality of rotating mechanisms to each other,
When a force opposite to the direction of gravity is provided to the connecting member, the connecting frame is moved to the inside of the device housing to release the lock, and the rotating mechanism is rotated to the outside of the device housing to open the mounting opening. Features a standing stool.

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