Inclined posture enabling device with rising mechanism

Abstract

To enable a person who has difficulty in standing or walking to shift from a seated position to a standing state and to have an inclined posture in the standing state.SOLUTION: A device has a rotation part 1 and a foundation 2 supporting the rotation part. The rotation part 1 has a fixing part 18 for fixing a user, an actuator 14 driving the fixing part 18, and a mechanism which has a seat surface when seated and has no seat surface when standing. The foundation 2 has a supporting member 22 which is rotatably connected to the rotation part 1 and prevents the rotation part 1 from falling and a foundation leg member 23.SELECTED DRAWING: Figure 5C

Description

[Technical Field]

[0001] The present invention relates to a device that enables people with standing or walking disabilities to adopt an inclined posture while standing. [Background technology]

[0002] As a prior art, a wheelchair that changes the position of a disabled person from a sitting position to a standing position is known (see, for example, Patent Document 1).

[0003] Furthermore, Patent Document 2 is known as a device that enables disabled people to move while standing. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] US Patent No. 7151778 B2 [Patent Document 2] Japanese Patent No. 5259629 Summary of the Invention [Problem to be solved by the invention]

[0005] Generally, in wheelchairs that allow the user to stand, the support point for maintaining the standing position is located near the user's feet. Therefore, if the user leans forward while standing, the center of gravity will be in front of the support point, and the user will be at risk of tipping forward along with the wheelchair. Therefore, in order to prevent the wheelchair from tipping over while standing, the part that secures the human body when the user is in the standing position is not completely upright, but is designed to be slightly tilted behind the user, so that the user is secured in a position that does not lean forward. Additionally, moving a wheelchair in an upright position increases the risk of tipping over. For example, if the wheelchair is moving at a constant speed while standing, applying the brakes can cause it to tip forward.

[0006] In the device of Patent Document 2, the part that fixes the chest cannot be tilted, so the user cannot assume an inclined posture after being fixed to the device. Also, although the device described in Patent Document 2 allows for movement for the purpose of rehabilitation, it is not suitable for use by disabled people for the movement required in daily life.

[0007] The present application has been made to solve the above-mentioned problems, and by using a structure having a rotating part and a base that supports the rotating part, it is possible for a person with a disability to stand up and assume an inclined posture while standing. In addition, by assuming an inclined posture while standing, it is possible for the person with a disability to move around in daily life using a cane. [Means for solving the problem]

[0008] The device disclosed in the present application is characterized in that it has a rotating unit and a base that supports the rotating unit, the rotating unit has a fixing unit that fixes the user, and the base that supports the rotating unit has a support member that is rotatably connected to the rotating unit and prevents the rotating unit from falling over. [Effects of the Invention]

[0009] The device disclosed in this application allows a disabled person to transition from a sitting position to a standing position and then assume an inclined position while standing. [Brief explanation of the drawings]

[0010] [Figure 1A] FIG. 1 is a perspective view of the device in a seated position according to the first embodiment; [Figure 1B] FIG. 1 is a perspective view of the device in the first embodiment in an upright position. [Figure 2A] 1 is a perspective view of a rotating part of the device according to the first embodiment. [Figure 2B] FIG. 1 is a perspective view of a base of the device according to the first embodiment; [Figure 3] FIG. 1 is a perspective view of a portion of the device according to the first embodiment where a cane is attached. [Figure 4A] 1 is a side view of a user in a sitting position in the first embodiment; [Figure 4B] 1 is a side view of a user in a standing position according to the first embodiment; [Figure 4C] 1 is a side view of a user in a tilted position in embodiment 1. [Figure 5A] 1 is a perspective view of a user in a seated position in the first embodiment; [Figure 5B] 1 is a perspective view of a user in a standing position according to the first embodiment; [Figure 5C] 1 is a perspective view of a user in a tilted position in the first embodiment; [Figure 6] A diagram showing the movement principle of the present invention [Figure 7A] FIG. 10 is a perspective view of the device in a seated position according to the second embodiment; [Figure 7B] FIG. 10 is a perspective view of the device in the upright position according to the second embodiment. [Figure 7C] FIG. 10 is a side view of the device in the sitting position according to the second embodiment. [Figure 7D] FIG. 10 is a side view of the device in the standing position according to the second embodiment. [Figure 7E] FIG. 10 is a perspective view of a fixing portion of the device according to the second embodiment. [Figure 8A] FIG. 10 is a rear perspective view of the device according to the third embodiment when placed on the floor. [Figure 8B] FIG. 10 is a rear perspective view of the device in the seated position according to the third embodiment. [Figure 8C] FIG. 10 is a rear perspective view of the device in the third embodiment in an upright position. [Figure 8D] FIG. 10 is a rear view of the device in the third embodiment placed on the floor. [Figure 8E] FIG. 10 is a rear view of the device in a seated position according to the third embodiment. [Figure 8F] FIG. 10 is a rear view of the device in the upright position according to the third embodiment. [Figure 8G] FIG. 10 is a rear view illustrating the details of the device according to the third embodiment. [Figure 8H] FIG. 10 is a bottom view of the bolt pressing member after sliding in the third embodiment. [Figure 8J] FIG. 10 is a bottom view of the bolt pressing member before sliding in the third embodiment. [Figure 8K] FIG. 10 is a side view of the bolt pressing member after sliding in the third embodiment. [Figure 8L]FIG. 10 is a side view of the bolt pressing member before sliding in the third embodiment. [Figure 9A] In the third embodiment, the user [Figure 9B] 10 is a side view of a user in a sitting position in embodiment 3. [Figure 9C] 10 is a side view of a user in a standing position in a third embodiment. [Figure 10A] FIG. 10 is a perspective view of a floor surface state according to a third embodiment of the present invention; [Figure 10B] 10 is a perspective view of a user in a seated position in a third embodiment; [Figure 10C] 10 is a perspective view of a user in a standing position in a third embodiment; [Figure 11A] 10 is a perspective view of the fourth embodiment when the angle of the support member of the base is changed; [Figure 11B] 10 is a side view of the fourth embodiment when the angle of the support member of the base is changed; [Figure 12A] FIG. 10 is a perspective view of the device in the normal state according to the fifth embodiment. [Figure 12B] FIG. 10 is a perspective view of a state in which the device according to the fifth embodiment presses the ground pressing member; [Figure 12C] 10 is a side view of the device in the normal state according to the fifth embodiment. [Figure 12D] FIG. 10 is a side view of the device according to the fifth embodiment, showing a state in which the ground pressing member is pressed. [Figure 13A] 10 is a perspective view of the device of the fifth embodiment leaning against a staircase. [Figure 13B] 10 is a perspective view of the device of the fifth embodiment extending the ground pressing member to climb stairs. [Figure 13C] 10 is a side view of the device of embodiment 5 leaning against a staircase. [Figure 13D] A side view of the device of embodiment 5 extending the ground pressing member to climb stairs. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, preferred embodiments of the device according to the present invention will be described with reference to the drawings. The same reference numerals are used to designate the same contents and corresponding parts, and detailed descriptions thereof will be omitted. In the following embodiments, redundant descriptions of components with the same reference numerals will also be omitted.

[0012] In the following embodiments, the shapes of the components and the positional relationships of the components are shown, but these are merely examples and are not intended to be limiting. The shapes and positional relationships can be freely changed within the scope of the invention.

[0013] <Embodiment 1> Fig. 1A is a perspective view of the device according to this embodiment in a seated position, and Fig. 1B is a perspective view of the device in a standing position. Fig. 2A is a perspective view of a rotating unit 1 of the device according to this embodiment, and Fig. 2B is a perspective view of a base 2 of the device. As shown in Figs. 1A and 1B, the device is composed of a rotating unit 1 and a base 2 that supports the rotating unit.

[0014] When explaining the positional relationships, we use x, y, and z. The x direction is the left-right direction as seen from the user. The y direction is the front-to-back direction as seen from the user. The z direction is the height direction (height direction).

[0015] 1A to 2A, the rotating part 1 has a rotating shaft 11 on the bottom. The axial direction of the rotating shaft 11 is the x direction, and the rotating shaft 11 is connected to a support column z12 and a support column y13 in the z direction and y direction.

[0016] The support pillar z12 is connected to a seat component 15. The seat component 15 is composed of a frame x15a, a rotatable pin support 15b, a U-shaped crank 15c, and a crank support pillar 15d. The plate 16 is connected to the frame x15a using the rotatable pin support 15b, the U-shaped crank 15c, and the crank support pillar 15d to form a parallel crank mechanism. The U-shaped crank 15c and the crank support pillar 15d are collectively referred to as the crank part.

[0017] Plate 16 is connected to a fixed part 18 that fixes the user's upper body and rear legs 17 of the chair. Plate 16 and the crank part are connected by a parallel crank mechanism, so the angle of plate 17 does not change even if the crank part rotates and changes its angle. Since the angle of plate 17 does not change, the angle between fixed part 18 and rear legs 17 also does not change. The fact that the angle of fixed part 18 does not change has the effect of allowing the angle of the user's upper body to be kept the same whether standing or sitting. In addition, the fact that the angle of rear legs 17 does not change has the effect of preventing the legs from sticking out in the y direction when standing and causing no obstruction to the surrounding area when moving.

[0018] The area surrounded by the frame 15a and the U-shaped crank 15c forms the seating surface. A cushion is placed on the seating surface (not shown).

[0019] The fixing part 18 that fixes the upper body of the user is composed of a back plate 18a that the back is attached to and a magnetic chuck 18b. The magnetic chuck 18b can also be replaced by a belt.

[0020] The magnetic chuck 18b is disposed on the back plate 18a. The magnetic force of the magnetic chuck 18b can be switched on and off. When wearing magnetic clothing on the user's body (particularly the back of the upper body), the user brings their body close to the fixing part 18 and turns on the magnetic force of the fixing part 18, thereby fixing their body to the fixing part 18. When removing their body from the fixing part 18, they turn off the magnetic force.

[0021] In addition to the magnetic chuck, it is possible to use an electromagnetic coil to switch the magnetic force on and off. When fixing with a belt, the belt can be attached to the back plate 18a.

[0022] It is also possible to secure the body with a cloth or plastic (resin) belt without using the magnetic chuck 18b. However, when a belt is used, it is wrapped around the outside of regular clothing, making the belt visible to third parties and unsightly. With the magnetic chuck mechanism, the user can wear magnetic clothing inside regular clothing, making the belt invisible to third parties, and thus has the advantage of being able to secure the body to the securing part 18 without unsightly appearance.

[0023] 1A and 2A, the support column y13 is configured to extend in the z direction after passing under the support member 22, but it may be configured to extend in the z direction on the front side of the support member 22 and lean against the support member 22. In that case, the support column y13 is configured to extend in the y and z directions above the support member 22 to the position where the actuator 14 is to be attached.

[0024] The actuator 14 will now be described. In this embodiment, the actuator 14 is a gas spring 14a. The gas spring 14a is attached to the support y13 via a rotatable pin support. The actuator 14 can be replaced by a bolt jack or a hydraulic jack in addition to the gas spring 14a.

[0025] The rod at the tip of gas spring 14a is connected via a rotatable pin support to support post 15d, which is connected to the center of U-shaped crank 15c. When pressure in the gas part of gas spring 14a is released, the rod extends, and support post 15d and U-shaped crank 15c are pushed up in the z direction while rotating. Because fixed part 18 is connected to U-shaped crank 15c via plate 16, when U-shaped crank 15c is pushed up, fixed part 18 is also pushed up. In this way, fixed part 18 rises from the position of the back of the chair to a position around the chest when standing, allowing the user to transition from a sitting position to a standing position.

[0026] When the fixed part 18 is located near the back of the chair, the U-shaped crank 15c is on the xy plane. On the other hand, when the fixed part 18 is located near the chest position when standing, the U-shaped crank 15c is on the xz plane. In other words, the rotating part 1 has a seat when the fixed part 18 is located near the back of the chair, and has a mechanism that hides the seat when the fixed part 18 is located near the chest position when standing.

[0027] The drive switch for the actuator 14 can be attached to the cane 3 or the belt of the fixed part 18. In this embodiment, it is effective to connect the drive switch for the gas spring 14a to the cane 3. This is because, to release the pressure of the gas spring 14a and extend the rod, the drive switch must be pressed while the pressure on the gas part is below a certain value. Conversely, to compress the pressure of the gas spring 14a and shorten the rod, the pressure on the gas part must be above a certain value. In other words, to stand up, the user must rest their weight on the cane 3 to keep the pressure on the gas part below a certain value. Therefore, if the drive switch is attached to the cane 3, the user can operate the pressure changeover switch while resting their weight on the cane 3. This is the same principle as the mechanism for adjusting the seat height of a typical chair. To raise the seat, the user lifts their weight, and to lower the seat, the user applies pressure due to their weight.

[0028] As shown in Figures 1A, 1B, and 2B, the base 2 that supports the rotating part 1 has bearing members 21. Two bearing members 21 are connected to support both ends of the rotating shaft 11. The bearing members 21 have bearings inside (not shown). The bearings may be plain bearings or rolling bearings. The rotating shaft 11 is connected to the bearings to enable rotation.

[0029] The bearing member 21 has support members 22 on the front and rear sides to prevent the rotating part 1 from falling over.

[0030] The support member 22 extends a certain distance in the y direction, and then extends a certain distance in the z direction, and is fixed to connect the two bearing members 21. Because the two bearing members 21 are connected by the support member 22, they are fixed at a constant distance from each other in the x direction. This prevents the rotating shaft 11 from falling off the bearing. For example, when the rotating shaft 11 moves in the x direction, the support post z12 hits the bearing member 21, so it does not fall off.

[0031] The rotation angle of the rotating unit 1 is determined by specifying the extension distance in the y direction and the extension distance in the z direction of the support member 22. For example, if the extension distance in the y direction is increased, the rotating unit 1 can tilt forward more. Conversely, if the extension distance in the y direction is decreased, the support column z12 will immediately come into contact with the support member 22, and the angle at which the rotating unit 1 can tilt forward will become smaller.

[0032] In the drawings (e.g., FIG. 1A), the support member 22 on the front side is rectangular and the support member 22 on the rear side is circular, but any shape is acceptable. The support column z12 and the support member 22 can be designed so that they contact at a specified angle.

[0033] The assembly procedure involves passing the rotary shaft 11 through the two bearing members 21 and then fixing the support member 22.

[0034] The support members 22 are components that prevent the user from falling to the ground when the rotating unit 1 rotates. The support members 22 are arranged on the front and back sides so that the support columns z12 come into contact with the support members 22 when the rotating unit 1 rotates to a certain angle. As a result, when the rotating unit 1 rotates to a certain angle, the support columns z12 come into contact with the support members 22, preventing the rotating unit 1 from rotating beyond the certain angle. This structure also allows the user to take forward and backward leaning positions.

[0035] The bearing member 21 has base leg members 23 that support the rotating part 1 in the x direction, which is opposite to the direction of the rotating shaft 11. This makes it possible to prevent the entire device from tipping over back and forth or side to side. In particular, to prevent the device from tipping over forward, it is effective to make the shape such that the longitudinal direction is forward.

[0036] As shown in Figure 3, it is possible to provide a cane attachment part 3a on the fixed part 18 so that the cane 3 can be removably hung on the cane attachment part 3a. The installation location of the cane attachment part 3a is not limited to the fixed part 18. This allows the user to use the cane 3 only when moving (when necessary), and hang the cane 3 on the cane 3 hanger when not needed, freeing both hands. The cane attachment part 3a does not have to be a component part of the device.

[0037] How to use the device according to the present invention will be explained with reference to Figures 4A to 5C. As shown in Figures 4A and 5A, the user sits on the seat. The user secures their body to the securing part 18 using a belt or magnetic force. The user operates the actuator 14 to transition from a seated position to a standing position as shown in Figures 4B and 5B. As shown in Figures 4C and 5C, the user leans forward and moves using the cane 3.

[0038] The principles of tilting and walking with the device of the present invention using a cane are explained using Figure 6. The center of the circle represents the rotation axis 11 of the device. The radius R of the circle represents the distance from the rotation axis 11 to the shoulder of the user using the device. The circle also represents the trajectory of the shoulder movement when the user tilts. First, because the fixed unit 1 is rotatably connected to the base 2, the user can tilt up to the point where the rotating unit 1 hits the support member 22. Next, the principles of walking with a cane are explained. When a user leans at an angle θ from an upright position without holding anything, the user's shoulder moves downward by R(1-cosθ). Next, assume that the user holds the cane 3, places the cane 3 on the ground, and tilts the rotating unit 1 by an angle θ. In this case, the cane 3 hits the ground, preventing the user's shoulder from moving downward by R(1-cosθ). Instead, the entire device, including the user, floats upward by R(1-cosθ). Furthermore, as the user tilts the device by an angle θ, the center of gravity is positioned forward of the rotation axis 11, so the entire device floats by R(1-cosθ), and at the same time, the entire device moves forward until the rotation axis 11 and the center of gravity are aligned vertically. This is the principle of movement of the present invention. It is a principle that does not rely solely on the user's arm strength, but utilizes the geometric movement of the center of gravity. Imagine moving forward using two crutches.

[0039] In the first embodiment, the actuator 14 that moves the fixed part 18 up and down is a gas spring 14a. The mechanism that hides the seat is a mechanism that uses a parallel crank. Specifically, the gas spring 14a applies rotational motion to the seat. This causes the seat to fit within the xz plane and become hidden. Furthermore, because the fixed part 18 is connected to the seat by a parallel crank mechanism, even if the seat component 15 rotates, the fixed part 18 remains upright, allowing the user to be in a standing position.

[0040] The user's feet may be on the ground or may be provided with foot rests on the device.

[0041] Unless otherwise specified, the components can be connected by joining using joint components, joining by welding, joining by bolts, or the like.

[0042] <Embodiment 2> 7A to 7D show a second embodiment of the present invention. Fig. 7A and Fig. 7C are a perspective view and a side view of the device in a sitting position according to this embodiment. Fig. 7B and Fig. 7D are a perspective view and a side view of the device in a standing position according to this embodiment.

[0043] The second embodiment differs from the first embodiment in the actuator 14 that moves the fixed portion 18 up and down, and the mechanism that hides the seat portion.

[0044] As shown in FIGS. 7A and 7B, the rotating part 1 has a rotating shaft 11 at the bottom, and the rotating shaft 11 is connected to a support column y' 13 and a support column z' 12 in the y and z directions.

[0045] The support pillar z'12 extends up to the chest area of ​​the human body and serves as a rail for moving the fixing part 18 up and down.

[0046] The fixed part 18 is attached to the support column z'12 so as to be able to move up and down. The fixed part 18 has a bearing in the center, and the support column z'12 is placed through the bearing. This allows the fixed part 18 to move up and down smoothly on the support column z'12. The bearing of the fixed part 18 may be a plain bearing or a rolling bearing. In addition to bearings, smooth up and down movement is possible by using a spline bearing between the support column z'12 and the fixed part 18.

[0047] A belt 18c and a member 18d for supporting the crotch are fixed to the fixing part 18. The user puts the belt 18c around the torso, stands up, and has the crotch supported by the member 18d, enabling the user to stand up.

[0048] The crotch support member 18d may be omitted, and the crotch area may also be supported by the belt 18c.

[0049] The fixed portion 18 has attached to its lower portion a seat component 15 formed by combining a flat bar and a rotatable pin support 15b. For the sake of explanation, these will be referred to as flat bar A 151, flat bar B 152, and flat bar C 153. The rotatable pin support 15b is, for example, a hinge.

[0050] Flat bar A151 is simply fixed to fixing portion 18, and is rotatably fixed to flat bar B152 using a hinge. Flat bar B152 is rotatably fixed to flat bar A151 and flat bar C153 using hinges, respectively. Flat bar C153 is rotatably fixed to flat bar B152 using a hinge, and is rotatably fixed to bearing member 21 using, for example, a plain bearing. Each rotatable portion is attached with the x direction as its rotation axis.

[0051] The flat bars B152 form the seating surface. A notched seating surface 15f is arranged between the two flat bars B152. The notches in the notched seating surface 15f are provided to avoid the member 18d that supports the crotch when the user is standing. The user sits on the notched seating surface 15f.

[0052] The flat bar is an example, and may be a cylinder or a prism, and the cross-sectional shape does not matter. In terms of configuration, the flat bar A 151 may be omitted, and the flat bar B 152 may be fixed directly to the fixing part 18.

[0053] Since the flat bar B152 may expand so that it is positioned on the xy plane in the rear direction (y direction) when viewed from the user, it is a good idea to place a member near the hinge to prevent it from expanding in the rear direction.

[0054] In the second embodiment, the actuator 14 that raises and lowers the fixed portion 18 is a bolt jack mechanism. Components related to the bolt jack mechanism will be described using the reference numeral 14 and alphanumeric characters.

[0055] The support pillar y' 13 extends a certain distance in the y direction and then extends in the z direction. A threaded part 14d is fixed to the part of the support pillar y' 13 extending in the z direction. The threaded part 14d is fixed so that the bolt 14c can move in the z direction. In addition, the part of the support pillar y' 13 extending in the z direction is in contact with the support member 22 on the rear side.

[0056] A bolt 14c is passed through the threaded part 14d. As shown in Fig. 7E, the tip of the bolt 14c is placed against the enclosed area 18e of the fixing part 18. The head of the bolt 14c is connected to an electric device 14b that has a motor, a battery, and a mechanism for rotating the bolt. For example, this could be an electric ratchet or an impact driver.

[0057] The enclosed area 18e is a mechanism for preventing the bolt c from coming off the fixed part, and is the enclosed area when four plates are welded to the fixed part 18, for example.

[0058] The electric device 14b is fixed at a constant distance from the fixed portion 18 using a part 14e that fixes the positional relationship between the electric device and the pressing portion. When the electric device 14b is driven and the bolt 14c is screwed in, the bolt 14c moves upward (in the z direction). Because the tip of the bolt 14c is in contact with the fixed portion 18, when the bolt 14c moves upward, the fixed portion 18 is pushed up by the bolt 14c. Because the fixed portion 18 and the electric device 14b are fixed at a constant distance by the part 14e, when the fixed portion 18 is pushed up, the electric device 14b also moves upward together with the fixed portion 18. This prevents the electric device 14b from coming off the head of the bolt 14c.

[0059] When the fixing portion 18 is pushed up by the bolt 14c, the user moves from a sitting position to a standing position.

[0060] Furthermore, because flat bar A151 is fixed to fixed part 18, when fixed part 18 is raised, flat bar A151 also moves upward. Accordingly, flat bar B152 and flat bar C153 also move upward while rotating. Flat bar B152 (seat), which was on the xy plane, is pulled upward while rotating, so that flat bars A151, B152, and C153 become aligned in the xz plane, and the seat is hidden.

[0061] That is, as shown in Fig. 7C, when the fixed part 18 is located near the back of the chair, the flat bar B 152 is disposed on the xy plane in the forward direction. Also, as shown in Fig. 7D, when the fixed part 18 is located near the chest when standing, the flat bars A 151, B 152, and C 153 are aligned in a straight line and fit within the xz plane. Thus, when the fixed part 18 is located near the back of the chair, the seat portion is present, and when the fixed part 18 is located near the chest when standing, the seat portion is hidden.

[0062] By reversing the screwing direction of the electric device 14b, the fixed part moves downward (z direction), making it possible to transition from a standing position to a sitting position.

[0063] In the second embodiment, the actuator 14 that moves the fixed part 18 up and down is a bolt jack. The mechanism that hides the seat part is a mechanism that uses multiple flat bars A151, B152, and C153 and a rotatable pin support (hinge) 15b. When the fixed part 18 is pushed up by the bolt jack, the seat part with the hinge attached below the fixed part 18 is pulled up, and the seat part that was on the xy plane fits into the xz plane and becomes hidden.

[0064] <Embodiment 3> 8A to 10C show a third embodiment of the present invention. 8A to 8F are perspective views and rear views of the device of this embodiment in a floor state, a seated state, and a standing state. FIG. 8G is an explanatory diagram of the details of the device in this embodiment. 8H and 8J are detailed part A of FIG. 8G, and are bottom views of the bolt pressing member 14g and the slotted bolt pressing member 18h before and after sliding. 8K and 8L are side views of the detailed part B of FIG. 8G, showing the elongated bolt pressing member 14h before and after sliding. 9A to 10C are side views and perspective views of the present embodiment in which the user is in a floor state, a sitting state, and a standing state.

[0065] The problem that the third embodiment aims to solve is explained below. Wheelchair users have difficulty moving from the floor to the wheelchair and vice versa (from the wheelchair to the floor). The problem that the third embodiment aims to solve is to enable the user to move from the floor to a seated position and back.

[0066] The differences between embodiment 2 and embodiment 3 will be explained. In embodiment 2, there is one actuator 14. In embodiment 3, there are two actuators 14. Furthermore, the enclosed area 18e in embodiment 2 is replaced by a bolt pressing member 14g and a slotted bolt pressing member 14h in embodiment 3. In embodiment 3, a notch 18f is provided in the fixing portion of embodiment 2. Other structures are basically the same between embodiment 2 and embodiment 3.

[0067] As shown in Figures 8A to 8F, two threading components 14d are attached to the portion of the support column y' 13 extending in the z direction, at different heights and angled to the left and right. An actuator 14 is attached to each of the upper and lower threading components 14d. (Here, actuator 14 refers to the group of components represented by the alphanumeric character 14.)

[0068] The upper actuator 14 is used when transitioning between a seated and standing position. The lower actuator 14 is used when transitioning between a seated and floor position. A bolt 14c is connected to each of the two threaded parts 14d. The bolt 14c for the lower threaded part 14d is used when transitioning from floor to seated position. The bolt B 14c for the upper threaded part 14d is used when transitioning from seated to standing position.

[0069] The structure of the actuator 14 is the same as that of the bolt jack in embodiment 2. The bolt 14c of the upper actuator 14 is pressed against the elongated bolt pressing member 14h, and the bolt 14c of the lower actuator 14 is pressed against the bolt pressing member 18g.

[0070] As shown in Figure 8H, the four sides of the bolt pressing member 14g and the bolt pressing member with slot 18h are bent. This structure prevents the bolts from coming loose. Instead of bending the four sides, plates may be welded to the four sides.

[0071] The bolt pressing member 14g is attached so as to be movable along the support column z' 12. The bolt pressing member 14g is fixed to the electric device 14b via a part 14e that fixes the positional relationship between the electric device and the pressing portion.

[0072] As shown in FIGS. 8D to 8F, the slotted bolt pressing member 18h is fixed to the electric device 14b via a part 14e and a rail 14f that fix the positional relationship between the electric device and the pressing portion.

[0073] The role of the rail 14f will now be explained. A certain stroke (push-up) distance is required to lift a person from a seated position to a standing position. In other words, in this embodiment, the bolt 14c of the upper actuator 14 must be at least a certain length to allow the user to move from a seated position to a standing position. Accordingly, the part 14e, which fixes the relative positions of the electric device and the pressing part, also needs to be approximately the same length as the bolt 14c. Therefore, the fixed part 18 and the electric device 14b are connected by the part 14e and the rail 14f. The part 14e and the rail 14f are slidable and fixed so that they cannot come off. The part 14e is designed to be able to fit inside the rail 14f. For example, this can be achieved by providing a protrusion on the part 14e so that it can hook onto the end of the rail 14f. In this way, when in an upright position, the length of part 14e and rail 14f is approximately the same as that of bolt 14c, but when in a floor position, part of part 14e enters rail 14f, making it shorter than bolt 14c, and making it possible to lower fixed part 18 to the floor position.

[0074] 8H and 8J, the slotted bolt pressing member 14h has a slotted hole A 144 and a slotted hole B 145. The slotted bolt pressing member 14h is fixed to the fixing part 18 using the slotted hole A144, a small bolt A141, and a nut (not shown) so as to be slidable in the x direction.

[0075] The nut used for the small bolt A141 is a part that prevents the slotted bolt pressing member 14h from falling off the fixed part 18. Furthermore, the nut does not need to be tightly tightened, but rather needs to be loosely tightened so that the member 14h can slide.

[0076] The fixed portion 18 is provided with a notch 18f. The notch 18f is provided in the fixed portion 18 to prevent the bolt 14c and threaded part 14d of the upper actuator 14 from interfering with the fixed portion 18. As a result, when in a seated position, the bolt pressing member 14h with an elongated hole can be slid in the direction of opening the notch 18f, as shown in Figures 8H to 8J, to avoid the bolt 14c and threaded part 14d of the upper actuator 14. This makes it possible to operate the lower actuator and move further downward, from the seated position to the floor.

[0077] Conversely, when transitioning from a sitting position to a standing position, the slotted bolt pressing member 14h is slid in the direction of closing the notch 18f as shown in Figures 8J to 8H so that the bolt 14c of the upper actuator 14 is pressed against the slotted bolt pressing member 14h, and the upper actuator 14 is operated to transition to a standing position.

[0078] Figures 8H and 8K show the elongated bolt pressing member 14h sliding to close the notch 18f, and Figures 8J and 8L show the elongated bolt pressing member 14h sliding to open the notch 18f.

[0079] Furthermore, the elongated bolt pressing member 14h is fixed to the electric device 14b via a part 14e that fixes the positional relationship between the electric device and the pressing portion, a rail 14f, a small bolt B142, and a nut (not shown). Because the bolt 14c at the end of the electric device 14b is fixed to the threaded portion 14d, the entire upper actuator 14 cannot slide in the x direction together with the member 14h. Therefore, as shown in Figures 8H to 8L, a bolt fixing bar 143 and an elongated hole B145 are provided. When the member 14h is slid in the x direction, the small bolt B142 hits the bolt fixing bar 143 and cannot move in the x direction. Therefore, the upper actuator 14 remains in its original position, and only the member 14h can slide in the x direction.

[0080] The nut used for the small bolt B142 is a part for fixing the part 14e and the rail 14f to the slotted bolt pressing member 14h. The nut should not be tightly fastened, but should be loosely fastened so that the member 14h can slide.

[0081] The seat surface, which is made by combining flat bars and hinges below the fixed part 18, has the same configuration as in embodiment 2. As shown in Figure 8A, when the fixed part 18 is lowered to the floor, the flat bars A, B, and C fold together to form one piece.

[0082] 9A to 10C, the usage of this embodiment will be described. It is assumed that the user is standing on the floor, and the notch 18f of the fixing portion 18 is open.

[0083] As shown in FIGS. 9A and 10A, the user secures their body to the fixed part 18 on the floor. As shown in FIGS. 9B and 10B, the lower motorized device 14b is driven to transition from the floor to a sitting position. The slotted bolt pressing member 14h of the fixed part 18 is slid in the x direction until it fills the notch 18f and contacts the bolt 14c. As shown in FIGS. 9C and 10C, the upper motorized device 14b is driven to transition from the sitting position to a standing position.

[0084] Transitioning from standing to sitting and from sitting to the floor involves reversing the steps above.

[0085] <Embodiment 4> Figures 11A and 11B show the base 2 in this embodiment. Figures 11A and 11B are a perspective view and a side view showing variations when the angle of the support member 22 of the base 2 in this embodiment is changed.

[0086] The fourth embodiment is characterized in that the angle of the support member 22 of the base 2 is changeable. Other than that, the configurations of the rotating part 1, the actuator 14, etc. can be the same as those of the first to third embodiments.

[0087] As shown in FIGS. 11A and 11B, the support member 22 has an angle adjustment mechanism 24. The role of the support member 22 is to keep the rotation angle of the rotating unit 1 constant. By adjusting the angle of the support member 22, the positions at which the support columns z12 and y13 contact the support member 22 can be changed, thereby changing the rotation angle of the rotating unit 1. This makes it possible to narrow the rotation angle of the rotating unit 1 and achieve fixed positions in an upright position, a forward-leaning position, and a backward-leaning position. It is also possible to widen the rotation angle of the rotating unit 1 and achieve forward-leaning and backward-leaning positions at larger angles.

[0088] The angle adjustment mechanism 24 of the support member 22 can be realized by using a ratchet mechanism. For example, it is possible to adopt a mechanism used in the reclining mechanism of a chair.

[0089] <Embodiment 5> 12A to 13D show a fifth embodiment of the present invention. Fig. 12A and Fig. 12C are a perspective view and a side view of the device in this embodiment in a normal state (before the ground pressing member 30 is pressed in). Fig. 12B and Fig. 12D are a perspective view and a side view of the device in this embodiment after the ground pressing member 30 has been pressed in. 13A and 13C are perspective and side views of the device of this embodiment leaning against stairs, and Fig. 13B and 13D are perspective and side views of the device of this embodiment climbing stairs with the ground pressing member 30 extended.

[0090] In the fifth embodiment, a ground pressing member 30 that can be driven toward the ground and an actuator 14 that drives the ground pressing member are added to the support columns y, y' 13 of the device described in the first to third embodiments. In addition, the base 2 has the support angle change mechanism of the fourth embodiment.

[0091] First, let us explain the problem that these components are intended to solve. Wheelchair users cannot go up and down stairs by themselves, so they are forced to rely on multiple people to carry their wheelchair or to search for an elevator. The device of this embodiment enables disabled people to go up stairs by themselves.

[0092] As shown in FIGS. 12A to 12D, the actuator 14 that drives the ground pressing member 30 has the same configuration as the actuator 14 that drives the fixed part 18 in the second and third embodiments. The electric device 14b and the ground pressing member 30 are constrained to a fixed positional relationship using a part 14e so that the tip of the bolt 14c contacts the ground pressing member 30. The ground pressing member 30 has a mechanism (not shown) that prevents the bolt 14c from coming loose. For example, the bolt 14c is pressed against an area surrounded by plates on the four sides of the ground pressing member 30.

[0093] The actuator 14 that drives the ground pressing member 30 can also be replaced by a hydraulic jack or a gas spring 14a.

[0094] The threaded part 14d is attached to the support posts y, y' 13. When the bolt 14c is jacked using the electric device 14b, the entire device is lifted. This mechanism can be used to climb stairs. By adjusting the angle of the rotating part 1 (by having the user assume a tilted position), it is possible to obtain a propulsive force in an obliquely upward direction.

[0095] 12A to 13D, when going up and down stairs, it is preferable that the base 2 has a rotatable protrusion 31 at the tip of the base leg member 23. The protrusion 31 is covered with an elastic material that has a frictional force. As a result, when going up and down stairs, the protrusion 31 can be hooked onto the step of the stairs, and the frictional force will prevent the user from slipping down, allowing the user to go up and down the stairs.

[0096] The protrusion 31 is fixed to the tip of the base leg member 23 so that it can rotate around the x-axis and fix its position after rotation. The angle of rotation can be changed and fixed using the angle adjustment mechanism 24. This allows the protrusion to be positioned on the upper side in the z-direction when not on stairs, so that it does not interfere with normal movement. When on stairs, the user can rotate the protrusion and position it on the lower side in the z-direction so that it can be hooked onto a step.

[0097] When going up stairs, the user uses the angle adjustment mechanism 24 of the support member 22 to tilt the angle of the rotating unit 1 toward the front and fix it. When going down stairs, the user tilts it toward the back and fixes it. The user adjusts the center of gravity to avoid falling headfirst when going up or down stairs.

[0098] When descending stairs, only the protrusion 31 is used, and the ground pressing member 30 and the actuator 14 do not need to be used.

[0099] <Embodiment 6> In the first to fifth embodiments, in order for the user to move, the user needs to hold the cane 3. In the sixth embodiment, a device will be described in which the cane 3 is fixed to the device, and the user can move by taking a forward leaning posture without holding the cane 3.

[0100] For example, in a device according to the present invention as shown in FIG. 3, the cane 3 is fixed so that it touches the ground. Furthermore, the cane 3 is attached to one of the components of the rotating unit 1 so that its angle does not change as the rotating unit 1 rotates. For example, the cane 3 is attached to the support z12 of the rotating unit 1 or to the fixed part 18 so that its angle does not change due to the crank mechanism. The reason why the cane 3 is prevented from rotating together with the rotating unit 1 is to ensure that the bottom surface of the cane 3 (the part that comes into contact with the ground) can contact the ground parallel to the ground. If the cane 3 were to rotate together with the rotating unit 1, the bottom surface of the cane 3 would contact the ground at an angle rather than parallel to the ground, causing the user to float together with the base 2 and be unable to move.

[0101] With this structure, the user can simply lean forward without holding the cane 3, causing the cane 3 to press against the ground, lifting the base 2 along with the user, and moving forward a distance equal to the center of gravity (the same movement principle as shown in Figure 6).

[0102] In this embodiment, if the cane 3 is adjusted to a length that just touches the ground when the user is standing, the cane 3 will be too long when the user is sitting, so a length adjustment mechanism is required. For example, the cane 3 can be made up of two parts, one for holding the cane 3 and one for touching the ground, and the part that touches the ground can be designed to fit inside the part for holding the cane 3.

[0103] 3, the cane 3 does not touch the ground, but imagine the cane 3 extended to the point where it touches the ground. The crank mechanism is configured between the rotating shaft 11 and the support 12 or fixed part 18.

[0104] <How users with weak grip strength can operate the device> This section explains the parts that require user operation. For example, some people with spinal cord injuries lack grip strength. For users without grip strength, a design that assumes grip strength will not allow them to use the actuator 14 of this device, the angle change mechanism 24 of the support member 22, or fix their body to the fixed part 18. Taking such cases into consideration, it is necessary to design the device so that it can be operated even without grip strength.

[0105] The basic design method is to connect a ring to the end of a general operating unit via a string or wire. The end ring is then attached to any part of the device within the user's reach. Details are explained below.

[0106] This section explains how a user with limited grip strength can operate the gas spring 14a. Generally, the drive switch for the gas spring 14a is located at the head of the drive unit of the gas spring 14a. When the drive switch is pressed down, the gas moves, causing the drive unit to expand and contract. A lever is often used as the mechanism for pressing down the switch.

[0107] In this device, the lever of the gas spring 14a is connected to a ring via a string or the like. The ring is large enough to fit a finger through. The ring is attached to a location within the user's reach. For example, the ring is attached to the belt 18c of the fixed part 18 or the cane 3. This allows the user to operate the gas spring 14a by putting their finger through the ring and pulling the ring with their shoulder.

[0108] A method for a user with poor grip strength to operate the electric device 14b (for example, an electric ratchet) will be described. Generally, the drive switch of the electric device 14b is a push-type switch. A component that can be driven in the push-down direction is placed in front of the switch. This component is tied to a ring with a string or the like. The ring is attached in a location within the user's reach. This allows the user to operate the electric device 14b by putting their finger through the ring and pulling the ring with their shoulder.

[0109] The following explains how a user with no grip strength can operate the angle change mechanism 24 of the support member 22. Rings that can be passed through the fingers are fixed to the front and back sides of the front-side support member 22 and the back-side support member 22 (four locations in total) via strings or the like. The reason for placing them in four locations is to allow four types of movement: forward and backward for the front-side support member 22 and forward and backward for the back-side support member 22. The rings are attached in locations that are within the user's reach. The user can operate the angle change mechanism of the support member 22 by passing their fingers through the rings and pulling the rings with their shoulders.

[0110] The magnetic force of the magnetic chuck 18b can be switched on and off, and the slotted bolt pressing member 14h can be slid in the x direction using the ring in the same manner as described above.

[0111] For canes 3 used by users who lack grip strength, a Lofstrand clutch structure that can be used even without grip strength is suitable. The structure of a Lofstrand clutch is similar to the cane 3 shown in Figure 3.

[0112] For users who have grip strength and can move their arms, a design similar to that described above may be used, but it is also possible to use a simpler design, such as using a normal cane 3 or a design without a ring.

[0113] <Notes> Each part can be designed to be disassembled. This has the effect of making the device itself easier to transport. For example, the base leg member 23 can be disassembled into two parts. This makes it easier to transport the device by disassembling the parts, even if the base leg member 23 is designed with its longitudinal direction facing forward.

[0114] The present invention is not limited to the above-described embodiments, but includes various modified embodiments. For example, the above-described embodiments have been described in detail to clearly explain the present invention, and are not necessarily limited to those including all of the configurations. Furthermore, the configuration of one embodiment can be added to the configuration of another embodiment. Furthermore, it is possible to add, delete, or replace part of the configuration of each embodiment with the configuration of another embodiment. [Explanation of symbols]

[0115] 1: Rotating part, 2: Base, 3: Cane, 3a: Cane attachment part, 4: User, 5: Stairs 11: Rotation axis, 12: Support z z', 13: Support y y', 14: actuator, 14a: gas spring, 14b: electric device (for example, electric ratchet), 14c: bolt, 14d: threaded part, 14e: part for fixing the positional relationship between the electric device and the pressing part, 14f: rail, 14g: bolt pressing member, 14h: elongated hole bolt pressing member, 15: Seat component, 15a: Frame x, 15b: Rotatable pin support, 15c: U-shaped crank, 15d: Crank support, 15e: Support, 15f: Notched seat, 16: Plate, 17: Rear leg, 18: fixing part, 18a: back plate, 18b: magnetic chuck, 18c: belt, 18d: crotch support member, 18e: enclosed area, 18f: notch in fixing part, 21: bearing member, 22: support member, 23: base leg member, 24: angle adjustment mechanism, 30: Ground pressing member, 31: Rotatable protrusion, 141: Small bolt A, 142: Small bolt B, 143: Bolted bar, 144: Slotted hole A, 145: Slotted hole B, 151: Flat bar A, 152: Flat bar B, 153: Flat bar C,

Claims

1. A device for a person with a disability to stand or walk to assume an inclined posture, the device has a rotating part and a base supporting the rotating part; The rotating part is A fixing portion for fixing a user is provided, The base is rotatably connected to the rotating part, A support member that prevents the rotating part from falling over have An apparatus characterized in that

2. The rotating part is An actuator for driving the fixed portion is provided.

2. The device of claim 1 .

3. The rotating part is When the fixed portion is located at a position substantially corresponding to the back of a chair, the fixed portion has a seat portion; The seat portion has a mechanism that hides the seat portion when the fixing portion is located at approximately the chest position when the user is standing.

3. The device according to claim 1 or 2.

4. The base is The base leg member has a longitudinal direction in front of the user.

4. The device according to claim 1, wherein the first and second electrodes are connected to the first and second electrodes.

5. The support member is Has an angle adjustment mechanism 5. The device according to claim 1, wherein the first and second electrodes are connected to a first electrode.

6. The fixing portion is Has a mechanism to switch magnetic force on and off 6. The device according to claim 1, wherein the first and second electrodes are connected to a first electrode.

7. The rotating part is A member that presses the device toward the ground; an actuator that drives the pressing member; have 7. The device according to any one of claims 1 to 6.

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