JP4017230B2 - Standing assist device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a standing assistance device, and more particularly, to a standing assistance device that assists in standing up from a state of sitting on a Japanese tatami mat, a chair, a Western style toilet seat, or the like.
[0002]
[Prior art]
This type of standing assistance device facilitates rising by raising or tilting the seating surface. As means for raising or inclining the seating surface, those using an electric gear mechanism or an airbag are known.
[0003]
The stand-up assisting device using the electric gear mechanism has drawbacks such that the applicable chairs are limited, it becomes heavy and difficult to move, and it cannot be manufactured at low cost.
[0004]
On the other hand, the standing assistance device using an air bag is equipped with an air bag under the seating surface and inflates it to raise or forward tilt the seating surface. Can be applied, and can be manufactured at low cost.
[0005]
[Problems to be solved by the invention]
In order to stand up from a sitting state with a small force, it is necessary to smoothly move the center of gravity on the seating surface to the position of the center of gravity when standing. The standing assistance device must assist the movement of the center of gravity.
[0006]
In this regard, the conventional example is still insufficient because it simply raises or tilts the seating surface, and it is merely enough to assist in moving the buttocks away from the seating surface. It is not enough to assist.
[0007]
An object of this invention is to show the standing assistance apparatus which assists the gravity center movement of the person who sits more effectively.
[0008]
It is another object of the present invention to provide a standing assistance device that can be easily applied to an existing chair or the like.
[0009]
Another object of the present invention is to provide a stand-up assisting device that can be manufactured at low cost.
[0010]
It is another object of the present invention to provide a standing assistance device having a function of assisting seating.
[0011]
[Means for Solving the Problems]
  The stand-up assisting device according to the present invention includes a base material, a seat surface material rotatably connected to the front end portion of the base material, and can be bent at at least one intermediate position, the base material, and the seat surface material. A raising member that is disposed between and lifts up the portion of the seating surface material that supports the collar portion in the front-up direction, a raising member formed of an airbag, and a driving member that drives the raising member, The rear portion of the base material and the rear portion of the seat surface material are coupled to each other, and a pulling means for pulling the seat surface material toward the base material is provided.
[0012]
Thereby, it is possible to move the center of gravity of a sitting person in the front-up direction with a very simple and lightweight configuration, and to easily stand up. Since the seating surface material is bent, the butt portion comes into close contact without sliding on the seating surface material, and a space is formed below the thigh, so that it is easy to stand up.
[0013]
  When the raising member is an airbag, the weight can be significantly reduced, the carrying can be facilitated, and the manufacturing cost can be reduced.By combining the rear part of the base material and the rear part of the seating material and providing a pulling means for pulling the seating material toward the base material, when the seating material is lifted by the raising member, The portion on which the collar portion is placed can be relatively flattened, and the lifted seating material can be stabilized.
[0014]
By providing a recess to accommodate the raising member on the surface of the base material and the seat surface material, the raising member can be accommodated inside the base material and the seat surface material in close contact with each other, making it easy to carry and store Become.
[0016]
  Lifting memberExhaust vent with adjustable opening degree that exhausts air from the air bagIt is possible to have a function of assisting seating..
[0017]
  The seat surface material includes a central surface material on which the collar portion is mainly mounted, a front surface material positioned in front of the central surface material, and a rear surface material positioned on the rear side of the central surface material.Do. Thereby, when the center face material is lifted by the raising member, the front face material is extended, so that the center face material can be lifted up and forward in a relatively horizontal state. As a result, the center of gravity of the sitting person can be brought closer to the center of gravity in the standing state, and the standing can be facilitated.
[0018]
By providing the first elastic member that draws the rear portion of the center face material toward the base material, the center face material can be lifted in a state close to horizontal.
[0019]
The rear part of the rear face material and the front part of the central face material are joined together, and when the seat surface material is lifted by the raising member, a second elastic material is provided to raise the rear face material from the central face material. Will push the buttock of the person who is sitting forward with the rear material, which will also help smooth standing up.
[0020]
  Base material as a base materialInBy providing the close assisting member to be in close contact, the seating surface material is easily brought into close contact with the base material in the sitting state, and the sitting comfort is improved. The close assisting member is, for example, a magnetic coupling member that is installed at a position where the base member and the seating member face each other and couples with a magnetic force, and thus can have a desired function at low cost.
[0021]
  The stand-up assisting device according to the present invention comprises a base material and first, second and third face materials which are sequentially connected so as to be bent, and the front end portion of the first face material is used as the front end portion of the base material. A seat member rotatably connected to the base member, and the base member and the seat member. The first member, the second member and the third member of the seat member are individually lifted. 1, 2nd and 3rd raising members, and a driving member for driving the first, 2nd and 3rd raising members, wherein the first raising member serves as the first airbag. And the second raising member comprises two airbags separated by a support plate having an end connected between the first face material and the second face material, The three raising members are provided with two airbags separated by another support plate having ends connected between the second face material and the third face material, and are seated When the person stands, the first, second, and third face materials are lifted so as to tilt forward, and the second face material is lifted relatively more flat than the first and third face materials. It is characterized by.
[0022]
By doing in this way, it can carry in the front up direction in the state which put the buttocks of the person who sat down on the 2nd face material stably. Autonomous rising is also facilitated by the forward tilting of the first face material. By tilting the second face material forward, the collar portion is pushed from the back surface, which also leads to assisting the rising. As a result, it does not require a great force to stand up from the sitting state, and can stand up easily.
[0023]
Since the first, second and third raising members are made of airbags, the weight can be significantly reduced, the carrying can be facilitated, and the manufacturing cost can be reduced.
[0024]
Since the second and third raising members are each composed of two airbags separated by a support plate, it is easy to adjust the degree of lifting, and appropriate changes in the shape of the seating material when assisting to stand up It becomes easy to set to something.
[0025]
Since the first, second, and third raising members have the return buffer function, the function of assisting the seating is also provided. The return buffer function can be realized, for example, by providing an exhaust port that can be selectively closed in the airbag and appropriately adjusting the opening degree.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0027]
FIG. 1 shows a central sectional view (a) and a plan view (b) of an embodiment of the present invention. FIG. 1 shows a state where an airbag to be equipped under a seating surface is inflated.
[0028]
The configuration of this embodiment will be described. Reference numeral 10 denotes a base plate installed on a seating surface such as a chair, and reference numeral 12 denotes a seating surface plate that supports the buttocks of a person to be seated. The base plate 10 and the seating surface plate 12 are coupled by hinges 14 and 14 at their front ends 10 a and 12 a, and the airbag 16 is disposed between the base plate 10 and the seating surface plate 12. For example, the base plate 10 is installed on the seat surface of an existing Western-style chair or a Japanese-style seat chair. The peripheral surface of the airbag 16 has a bellows shape.
[0029]
The seat surface plate 12 can be bent to the base plate 10 side by hinges 18 and 18 in the middle. Appropriate for attracting the seat plate 12 to the base plate 10 between the vicinity of the rear end 12b of the seat surface plate 12 opposite to the hinge 14 and the vicinity of the rear end 10b of the base plate 10 opposite to the hinge 14 as well. The springs 20 and 20 having a large tensile force are stretched over. The air bag 16 is coupled to the seat plate 12 between the hinge 18 and the rear end 12b. As a result, when the seat plate 12 is rotated about the hinge 14 by the inflation of the airbag 16 and is about to leave the base plate 16, the springs 20, 20 cause the rear end 12 b of the seat plate 12 to be connected to the base plate. As a result, the seat surface plate 12 is bent toward the base plate 10 at the hinge 18 portion, and the portion between the hinge 18 and the rear end 10b is kept relatively horizontal in the forward direction. Move to. The spring 20 is accommodated in a hollow stretchable pipe 22. A cushioning material 24 that is flexible against bending is fixed on the entire surface of the seating surface plate 12.
[0030]
In addition, recesses 10c and 12c for housing the airbag 16 in a contracted state are formed on the surfaces of the base plate 10 and the seat plate 12 facing each other. Thereby, when the airbag 16 is contracted, the seat surface plate 12 is in close contact with the base plate 10 and is in parallel with the base plate 10, so that the whole can be made flat with the airbag 16 stored. Easy to carry. A cross-sectional view of the airbag 16 in a contracted state is shown in FIG.
[0031]
An intake / exhaust opening 16 a is provided on one side of the airbag 16. That is, the opening 16a is connected to the exhaust side of the compressor 28 via the valve 26a and is connected to the intake side of the compressor 28 via the valve 26b. The exhaust side of the compressor 28 and the valve 26a communicate with the outside air via the valve 26c. The intake side of the compressor 28 is also in communication with outside air via a valve 26d.
[0032]
When the airbag 16 is inflated, the valves 26b and 26c are closed and the valves 26a and 26d are opened. Conversely, when exhausting from the airbag 16, the valves 26a and 26d are closed and the valves 26b and 26c are opened. The operation switch 30 controls power on / off of the compressor 28 and opening / closing of the valves 26a to 26d. The operation switch 30 is disposed, for example, at the foot as a foot switch or at a position where the hand can be reached while sitting (for example, a side surface of a chair).
[0033]
When it is desired to provide a seating assist function in the present embodiment, an exhaust opening that can be closed by a valve is provided, and when the airbag 16 is inflated, the opening is closed. The valve can be opened. When a person who wants to sit down sits on the cushion 24, the air in the airbag 16 is gradually discharged from the exhaust opening by the pressure, and the airbag 16 contracts. Finally, the seat surface plate 12 comes into close contact with the base plate 10 as shown in FIG. It is only necessary to set the air discharge resistance of the exhaust opening so that the movement of the seat plate 12 during this period is performed gently and stably.
[0034]
3, 4, and 5 are side views showing how the seat plate 12 moves when the airbag 16 in the contracted state is inflated. FIG. 3 is an initial state or someone is seated. FIG. 4 shows a state in which the airbag 16 is slightly inflated, and FIG. 5 shows a state in which the airbag 16 is inflated to the maximum.
[0035]
The operation of the present embodiment will be described with reference to FIGS. In an initial state or a state in which someone is seated, the seat surface plate 12 is in a position in close contact with the base plate 10 as shown in FIGS. The operation switch 30 opens the valves 26 a and 26 d and closes the valves 26 b and 26 c to operate the compressor 28 and supply compressed air to the airbag 16. Then, the airbag 16 is inflated, and the seat surface plate 12 is rotated around the hinge 14 and is lifted from the base plate 10. However, since the rear end 12b of the seating surface plate 12 is pulled toward the rear end 10b of the base plate 10 by the spring 20, the seating surface plate 12 is moved toward the base plate 10 at the hinge 18 portion as shown in FIG. It is slightly bent, and the inclined surface of the front portion (between the hinge 14 and the hinge 18) of the seat plate 12 is steeper than the inclined surface of the rear portion (between the hinge 18 and the end portion 12b) of the seat plate 12. When the airbag 16 is further inflated, as shown in FIG. 5, the inclination of the front portion of the seat plate 12 (between the hinge 14 and the hinge 18) becomes steep, and the rear portion of the seat plate 12 (the hinge 18 and the end portion 12b). Is carried forward without increasing the tilt angle.
[0036]
In this way, in this embodiment, the portion of the seat plate 12 with which the buttocks contact (the portion between the hinge 18 and the rear end 12b) is relatively horizontal than the front portion (between the hinge 14 and the hinge 18). Keep moving and move forward. This allows the sitting person to be pushed forward while being lifted a little, so the center of gravity is lifted slightly and carried forward, and even people with weak knee strength can stand up easily. Become. Since the front portion of the seat plate 12 (between the hinge 14 and the hinge 18) is relatively standing, it does not press the lower side of the thigh of the seated person, which also facilitates rising. .
[0037]
In the case of a structure in which the seating surface is simply lifted up or the seating surface is tilted while the entire seating surface is flat without providing a bendable portion by the hinge 18, the seated person's buttocks are pushed diagonally forward Although it moves, the amount of movement is small, and since it is shaped to slide down on the seating surface, the acting force that lifts the center of gravity and carries it forward is weakened. In the present embodiment, there is no such problem, and the buttock or the center of gravity of the sitting person can be moved upward and forward in a stable state.
[0038]
Although described as an embodiment applied to a normal chair, a hole is formed in the center portion of the seating surface plate 12, and the airbag 16 is also configured as a hollow structure or selectively disposed in the peripheral portion to ensure a passage for excrement By doing so, it can be applied to Western-style toilet seats.
[0039]
Next, a second embodiment of the present invention will be described. FIG. 6 shows a side view of the seating portion of the embodiment. In this embodiment, the seat plate is divided into three parts, and bendable portions are provided at two locations so that the seat plate itself has the shape of a chair. As a result, it becomes possible to move the buttocks of the person sitting in a stable state in the front-up direction, and the rise can be further facilitated.
[0040]
The configuration of the embodiment shown in FIG. 6 will be described. Reference numeral 40 denotes a base plate installed on a seating surface such as a chair, and reference numeral 42 denotes a seating surface plate that supports the buttocks of a person who sits down. As described above, in this embodiment, the seating surface plate 42 basically includes three surface materials 44, 46, 48, and the front end of the surface material 44 is connected to the front end of the base plate 40 by a hinge 50, The rear end of the face member 44 is connected to the front end of the support plate 54 by a hinge 52. The front end of the support plate 54 is further connected to the front end of the face member 46 by a hinge 56. The rear end of the face member 46 is connected to the front end of the support plate 60 by a hinge 58. The front end of the support plate 60 is further connected to the front end of the face material 48 by a hinge 62. The face material 46 and the support plate 54 have the same depth, that is, the width in the front-rear direction, and the face material 48 and the support plate 60 also have the same depth in the front-rear direction.
[0041]
Between the base plate 40 and the face material 44, between the base plate 40 and the support plate 54, between the support plate 54 and the face material 46, between the base plate 40 and the support plate 60, and between the support plate 60 and the face. Airbags 64, 66, 68, 70, and 72 having a bellows-like periphery are attached between the members 48. The airbags 64, 66, 68, 70 and 72 are coupled to the compressor 74, supplied with compressed air from the compressor 74, and exhausted. Although not shown, the compressor 74 is also provided with a ventilation switching mechanism similar to the valves 26a to 26d of the embodiment shown in FIG. 1 so that the compressor 74 can be used for exhaust. The operation switch 76 controls power on / off and intake / exhaust of the compressor 74.
[0042]
The inflating force of the airbags 64 to 72 when compressed air is supplied by the compressor 74 is set as follows. That is, the inflating force of the airbags 66 and 70 is set so that the airbags 66 and 70 lift the support plates 54 and 60 substantially horizontally and raise the support plate 60 higher than the support plate 54, respectively. The inflating force of the airbags 64, 68, 72 is set so that the airbag 68 slightly tilts the face material 46 forward while the airbags 64, 72 cause the face materials 44, 48 to largely lean forward. Since the inflation of the airbag 68 is negligible, the support plate 54 may be omitted and the airbag 66 and the airbag 68 may be integrated in this respect, but the plate member 46 is more stable in the illustrated embodiment. Easy to convert. Since the airbags 66 and 68 perform the function of supporting the weight of a seated person, they need to be as strong as possible.
[0043]
The support plates 54 and 60 (and the airbags 66 and 70) maintain the inclination angles of the face members 46 and 48 in an appropriate state when the seat plate 42 is lifted from the base plate 40, and the face members 46 and 48 It is provided to make it difficult to twist and is stable, and may be omitted. When the support plates 54 and 60 are omitted, the airbags 66 and 68 are integrated, and the airbags 70 and 72 are also integrated.
[0044]
As in the embodiment shown in FIG. 1, a cushioning material 78 that is flexible against bending is attached to the surface of the seating surface plate 42.
[0045]
The operation of this embodiment will be described. FIG. 7 is a side view showing the movement of the seating surface plate 42 by the inflation of the airbags 64 to 72 in a wire frame. In the state in which the airbags 64 to 72 are contracted, the face members 44, 46, 48 and the support plates 54, 60 of the seat surface plate 42 are in close contact with the base plate 40, and the cushion material 78 is the same as a normal seat surface. In addition, it is horizontal and flat.
[0046]
When the compressor 74 is operated by the operation switch 76 to supply compressed air to the airbags 64 to 72, the support plate 60 is the highest due to the expansion of the airbags 66 and 70, and then the support plate 54 is lifted high. 64 is rotated around the hinge 50 so that the face member 44 is tilted forward by the expansion of 64, and the airbag 72 is rotated around the hinge 56 so that the face member 46 is slightly tilted forward by the expansion of the airbag 68. As a result of the expansion, the face member 48 is rotated around the hinge 62 so that the face member 48 is inclined forward as much as the face member 44.
[0047]
Further, when compressed air is supplied to the airbags 64 to 72, the inclination of the face materials 44 and 48 is increased, but the inclination of the face material 46 is slightly increased.
[0048]
The buttocks of the seated person are exclusively on the face material 46. Accordingly, as can be easily understood from FIG. 6 due to the movement of the face materials 44, 46, and 48, the person sitting is carried forward and upward by the face material 46 in a substantially horizontal state. . Since the buttock of the person on which the face material 48 is sitting is pushed forward from the back surface, a greater force is not required to move the center of gravity than in the embodiment shown in FIG.
[0049]
The inflated airbags 64 to 72 can be exhausted and contracted by the compressor 74. Of course, seating is performed in the state where the airbags 64 to 72 are inflated, and the air in the airbags 64 to 72 is discharged to the outside by the pressure, so that the seating can be performed as in the embodiment shown in FIG. You can also help. The risk and anxiety of suddenly falling back can be alleviated or eliminated.
[0050]
Next, a description will be given of a third embodiment of the present invention in which the standing assistance effect is further improved while using a smaller number of airbags as compared with the embodiment shown in FIG. FIG. 8 shows a longitudinal sectional view of the embodiment in the middle of standing assistance, and FIG. 9 shows a plan view taken along line AA of FIG.
[0051]
The configuration of the embodiment shown in FIGS. 8 and 9 will be described. Similarly to the base plates 10 and 40, 110 is a base plate installed on a seating surface of a chair or the like, and 112 is a seating surface plate that supports the buttocks of a person to be seated. Similar to the seat plate 42, the seat plate 112 of the present embodiment is basically composed of three face members 114, 116, 118 divided in the front-rear direction. The front end of the face member 114 is connected to the front end of the base plate 110 by a hinge 120, and the rear end of the face member 114 is connected to the front end of the face member 116 by a hinge 122 so that the face member 116 can be bent toward the base plate 110. . The rear end of the face member 116 is connected to the front end of the face member 118 by a hinge 124 so that the face member 118 can be bent in a direction away from the base plate 110. However, although not shown in the drawing, a stopper mechanism is provided on the face members 116 and 118 so that the face member 118 can be bent only to a predetermined angle of about 30 ° with respect to the face member 116.
[0052]
Iron plates 126 are fixed at three locations on the rear end of the face material 118. As shown in FIG. 9, magnets 128 are provided so as to face the iron plate 126 at three corresponding locations on the rear end of the base plate 110. It is fixed. When seated, that is, when the seating surface 112 is in close contact with the base plate 110, the iron plate 126 and the magnet 128 facing each other are in close contact with each other by magnetic force, thereby stabilizing the seating surface 112 at a fixed position with respect to the base plate 110. be able to.
[0053]
Like the spring 20, the spring 130 pulls the rear end of the face material 116 toward the base material 110 between two points on both sides of the rear end of the face material 116 and two corresponding positions of the base material 110. Is over. In this embodiment, a spring 132 having a tensile force is passed between the rear end of the face member 118 and the front end of the face member 116 on both sides. As shown in FIG. 8, the surface material 118 is separated from the base material 110 to an angle regulated by the above-described stopper mechanism, that is, in a free state by the spring 132. The acting force of the spring 132 is such that the face material 118 can move to a position parallel to the face material 116 by placing the buttocks of the person sitting on the face material 118.
[0054]
Between the base plate 110 and the face material 116, airbags 134 and 134 that lift the face material 116 by being inflated are arranged. In this embodiment, two airbags 134 are provided, one on each side. Thereby, the wobble on the left and right can be reduced or prevented during the standing assistance. A supply / exhaust mechanism having the same configuration as the valves 26a to 26d and the compressor 28 of the embodiment shown in FIG. These air supply / exhaust mechanisms can be operated with a single operation switch, and the two airbags 134 and 134 can be inflated or contracted simultaneously.
[0055]
A cushion material 136 is placed on the top surfaces of the face materials 114, 116, and 118 so as to cover the whole. However, the cushion material 136 may be fixed only to the face material 116.
[0056]
When the airbag 134 is inflated, the rear end of the face member 116 is pulled toward the base plate 110 by the spring 130, so that the face member 114, 116 can be simply folded with the hinge 122. An excessive tensile force acts on the. Furthermore, it is difficult to lift the face material 116 in the front-up direction while being as horizontal as possible.
[0057]
Therefore, in this embodiment, the face material 114 is extendable in the front-rear direction. That is, the face material 114 was divided into two parts, a front part 114a and a rear part 114b, and both were mortiseed and joined. A cross-sectional structure of the coupling portion is shown in FIG. FIG. 10A shows a contracted state, and FIG. 10B shows an extended state. A deep recess 138 is provided in the rear portion 114b, and a corresponding protrusion 140 is provided in the front portion 114a to fit into the recess 138 in the rear portion 114b. A tension spring 142 is inserted into the recess 138. The tension spring 142 is always lightly biased in a direction in which the front portion 114a (projection 140) is pulled in the rear portion 114b (in the recess 138), that is, in a direction in which the face material 114 is contracted.
[0058]
A slot 144 is opened next to the recess 138, and a pin 146 that fits into the slot 144 is planted next to the protrusion 140. The face material 114 can be expanded and contracted as long as the pin 146 can move within the slot 144. For example, in this embodiment, the face material 114 can be extended by about 1 to 5 cm.
[0059]
FIG. 8 shows a state in which the airbag 134 is inflated to assist in standing. As in the previous embodiment, as the airbag 134 contracts by exhausting from the airbag 134, the seating surface material 112 approaches the base plate 110 by the contraction force of the spring 130, and the surface material 116 becomes the base plate. The iron plate 126 and the magnet 128 are brought into close contact with each other. In the process, the face material 114 is contracted by the tension spring 142. As a result, the face material 112 is in close contact with the base plate 110, and the surface of the cushion material 136 is also substantially flat.
[0060]
When the user wants to stand up from the seated state, the airbag 134 is inhaled by an operation switch and a compressor (not shown), and the airbag 134 is inflated. Then, mainly the intermediate face member 116 is pushed up, but the front end of the face member 116 is coupled to the front end of the base plate 110 via the face member 114, and the rear end of the face member 116 is directed to the base plate 110 by the spring 130. Therefore, the face material 116 is lifted forward. However, since the face material 114 can be expanded and contracted and the face material 114 expands against the acting force of the tension spring 142 as the face material 116 is lifted, the face material 116 is the same as the embodiment shown in FIG. As compared with the embodiment shown in FIG.
[0061]
When the face material 116 is slightly lifted, the iron plate 126 is separated from the magnet 128. Then, the face material 118 stands like a back plate by the acting force of the spring 132. This has the effect of slightly pushing the buttocks of the person sitting forward. This also serves to assist standing.
[0062]
In the present embodiment, since the foremost face material 114 of the seating surface plate 112 extends during the standing assistance, the face material 116 on which the collar portion is placed can be moved in the front-up direction in a relatively near-horizontal state. By these actions, standing can be assisted more stably than in the above-described embodiment.
[0063]
The configuration in which the foremost face member 114 can be expanded and contracted is also effective when applied to the embodiment shown in FIG. 1 and the embodiment shown in FIG. In other words, the front part of the seat part on which the collar part is placed is also lifted when standing, so that the seat part on which the collar part is placed can be moved upward and forward in a forward tilted state that is higher and more horizontal. is there. By making the face material 114 extendable, it can be prevented from being destroyed by an excessive pulling force applied to this portion when the airbag is inflated.
[0064]
【The invention's effect】
As can be easily understood from the above description, according to the present invention, standing can be effectively assisted with a very simple structure. Since it has a simple structure and few components, it can be manufactured at low cost. The use of an air bag makes it lighter, easier to carry, and easier to install on an existing chair.
[0065]
Moreover, it can also be used for assisting seating by moving the seat surface in the opposite direction during seating.
[Brief description of the drawings]
FIG. 1 is a central sectional view and a plan view of a first embodiment of the present invention.
FIG. 2 is a central sectional view of the airbag 16 in a deflated state.
FIG. 3 is a side view of the embodiment shown in FIG. 1 in an initial state.
4 is a side view showing a state where the airbag 16 is slightly inflated in the embodiment shown in FIG.
5 is a side view showing a state where the airbag 16 is inflated to the maximum in the embodiment shown in FIG. 1. FIG.
FIG. 6 is a side view of a second embodiment of the present invention.
7 is a side view showing a state of movement of the seating surface plate 42 by expansion of the airbags 64 to 72 in a wire frame. FIG.
FIG. 8 is a longitudinal sectional view of a third embodiment of the present invention.
9 is a plan view seen from the line AA in FIG.
10 is a cross-sectional view of an expansion / contraction mechanism portion of the face material 114. FIG.
[Explanation of symbols]
10: Base plate
10a: Front end of the base plate 10
10b: rear end of the base plate 10
10c: Recess of the base plate 10
12: Seat plate
12a: Front end of the seat plate 12
12b: Rear end of the seating surface plate 12
12c: Recess of the seat plate 12
14: Hinge
16: Airbag
16a, 16b: Opening of the airbag 16
18: Hinge
20: Spring
22: Hollow elastic pipe
24: Cushion material
26a, 26b, 26c, 26d: valve
28: Compressor
32: Valve
30: Operation switch
40: Base plate
42: Seat plate
44, 46, 48: Face material
50: Hinge
52: Hinge
54: Support plate
56: Hinge
58: Hinge
60: Support plate
62: Hinge
64, 66, 68, 70, 72: airbag
74: Compressor
76: Operation switch
78: Cushion material
110: Base plate
112: Seat plate
114, 116, 118: Face material
114a: Front portion of the face material 114
114b: Rear portion of face material 114
120, 122, 124: Hinge
126: Iron plate
128: Magnet
130, 132: Spring
134: Airbag
136: Cushion material
138: Recess
140: protrusion
142: Tension spring

Claims (10)

A base material;
A seat surface that is pivotally connected to the front end of the base material and can be bent at at least one intermediate position;
A raising member that is disposed between the base material and the seat surface material and lifts a portion of the seat surface material that supports the collar portion in the front-up direction, and is a raising member that includes an airbag;
A drive member for driving the raising member ;
A stand-up assisting device, comprising: a pulling means for connecting the rear portion of the base material and the rear portion of the seat surface material and pulling the seat surface material toward the base material . The in plane relative to each other of the base member and the seat surface material, standing aid of claim 1 which is provided a recess for accommodating the raised upper member. The electromotive upper material, to exhaust the air in the air bag, standing aid as claimed in claim 1 or 2 comprising an adjustable outlet opening degree. Central surface material to which the seat surface material buttocks rests primarily front member which is located before the central surface material, and any one of claims 1 to 3 comprising a face material after positioned to the rear side than the center surface material 1 The standing assistance device according to item. Furthermore, the standing assistance apparatus of Claim 4 which comprises the 1st elastic material which draws the rear part of the said center surface material to the said base board. Furthermore, the rear part of the rear surface material and the front part of the central surface material are connected, and the rear surface material is raised from the central surface material when the seat surface material is lifted by the raising member. The standing assistance apparatus according to claim 4 or 5 , comprising an elastic material. Furthermore, the standing aid device according to the seat surface material to any one of claims 1 to 6 comprising a close contact assisting member for close contact with the base material. The standing assisting device according to claim 7 , wherein the close assisting member is a magnetic coupling member that is installed at a position where the base member and the seating member face each other and couples with a magnetic force. A base material;
A seat surface material comprising first, second and third face materials sequentially connected so as to be bent, and a front end portion of the first face material rotatably connected to a front end portion of the base material;
First, second and third raising members which are arranged between the base material and the seat surface material and individually lift the first, second and third surface materials of the seat surface material;
A driving member for driving the first, second, and third raising members ,
The first raising member comprises a first airbag;
The second raising member comprises two airbags separated by a support plate having an end connected between the first face material and the second face material;
The third raising member comprises two airbags separated by another support plate having an end connected between the second face material and the third face material;
When the seated person stands, the first, second, and third face materials are lifted so as to tilt forward, and the second face material is relatively flatter than the first and third face materials. Standing assistance device characterized by lifting to The standing assisting device according to claim 9 , wherein the first, second and third raising members have a return buffer function.

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