JP2004313476A - Level difference mobile lift - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To offer a level difference mobile lift which assists a user in moving safely and easily in a place with a level difference. <P>SOLUTION: The level difference mobile lift has a parallel elevation mechanism consisting of a parallel linkage mechanism 14, a motor 16, and a piston 17, and a rotary control mechanism consisting of the motor 26, a shaft 27, and a gear box 28. A seat 23 electrically goes up and down, and rotates by the parallel elevation mechanism and the rotary control mechanism. Since it is not necessary to take an unnatural attitude when rotating the seat in contrast to a case of manual rotation, there is possibility neither that the user is forced to be pained nor that the user may lose balance and may fall from the seat. Also, a handrail 24 is circular and is arranged with a gradient in relation to the seat surface. Thereby, since the handrail 24 reaches a level not to hinder a transfer to the seat on the seat side, it is possible to easily use a lift. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a step-moving lift for a physically handicapped or elderly person (migration-restricted person) to easily move on a stepped place such as the entrance of a Japanese house.
[0002]
[Prior art]
In order to allow a person who is restricted to move easily to move, a barrier-free method for eliminating a step is required. Public facilities and public roads are gradually becoming barrier-free by the government. On the other hand, barrier-free interior of ordinary houses is more important than public facilities in daily life of people with mobility restrictions. For this reason, various measures have been taken such as minimizing small-scale steps and providing slopes where necessary. Furthermore, there are cases where elevators are installed in ordinary houses.
[0003]
In addition, in order for a person who has restricted movement to participate in society, it is necessary that the person who has restricted movement can easily go outside. When a person with a movement restriction goes outside, he must go through the entrance. In a Japanese house, there is generally a step of several tens of cm between a door frame (hereinafter referred to as an upper row) and a dirt floor (lower row). If a slope is provided to eliminate this step, the length of the slope requires several meters, so it is difficult to provide the slope at a narrow entrance of an ordinary house. Of course, elevators cannot cope with steps of about several tens of cm.
[0004]
Therefore, it has been proposed to provide a lift for moving the step in the lower part of the entrance or the like. Various types of lifts have been devised, including a type that lifts a user (movement-restricted person) and moves in the horizontal direction. For example, Patent Literature 1 proposes a type of lift that raises and lowers a seat. With this lift, when the user goes outdoors, first raise the seat from the top of the entrance to a height that makes it easy to sit down, and after the user sits down on the seat, lower the seat to a height that makes it easy to rise to the bottom, so that from the top to the bottom You can get off easily. When entering indoors, the user can go up from the bottom to the top by the reverse procedure. In this lift, a parallel link provided between the lower part of the seat and the pedestal moves up and down while keeping the seat surface horizontal.
[0005]
[Patent Document 1]
JP-A-2002-345899 (FIG. 1)
[0006]
Further, in the lift for moving a step in Patent Document 1, the seat can be rotated. For example, when the user sits on the seat from the upper row, the back turns to the lower row, and when getting off the seat at the lower row, it turns to the lower row. Rotation is required.
[0007]
This lift can be used by both a person using a wheelchair and a person walking on their own with the aid of a walking stick or the like. When a person using a wheelchair transfers from an indoor (upper) wheelchair to an outdoor (lower) wheelchair, the user places the side of the indoor wheelchair on the side of the lift seat and lifts the wheelchair from the wheelchair. I skid on my seat and transfer. After turning the lift seat to turn and lower the seat, the user lays the outdoor wheelchair on the side of the lift seat and transfers from the lift seat to the outdoor wheelchair.
[0008]
If the user can walk on his / her own using a cane, etc., first, when moving from the upper row to the lift seat, sit back on the seat with the back facing the lower row, then rotate the seat to face the lower row, Put your feet on the floor and get up from the seat.
[0009]
This rotation of the seat is performed manually. In addition, a brake is provided on the step-movement lift so that the seat does not rotate except when necessary.
[0010]
[Problems to be solved by the invention]
When the user uses the lift for stepping movement alone, the user who is unable to walk has to rotate the seat by manually pushing a fixed side such as a surrounding wall or the lower part of the lift. Therefore, the user must take an unnatural posture when rotating the seat. This is painful for a user with a disability, and in the worst case, the user may lose his balance and fall off the seat. If the user forgets to apply the brake, the seat may unexpectedly rotate when getting on or off the seat, and the user may fall.
[0011]
Further, in the lift of Patent Literature 1, since the bar material serving as the backrest extends to the side of the seat, the backrest becomes an obstacle when the vehicle slides between the lift seat and the wheelchair and is transferred. Also, when getting on or off the seat, the user's clothes may be caught on the tip of the backrest. On the other hand, it is not preferable to eliminate the backrest from the viewpoint of the stability of the body when sitting on the seat and the safety of preventing falling from the seat.
[0012]
The present invention has been made in order to solve such a problem, and an object of the present invention is to provide a step-moving lift that assists a user to safely and easily move on a step. To provide.
[0013]
[Means for Solving the Problems]
A step-moving lift according to the present invention made to solve the above-described problem is a lift for moving a step,
a) a pedestal for mounting on the lower floor;
b) a parallel lifting mechanism provided on the pedestal;
c) a seat provided at the upper end of the parallel lifting mechanism;
d) a rotation drive mechanism for rotating the seat by a motor;
It is characterized by having.
[0014]
Embodiments and effects of the present invention
The step-lift according to the present invention is intended to allow a user to sit on a seat, move up and down and rotate the seat safely and easily on a step. For this purpose, this step moving lift is configured as follows.
[0015]
The lift for moving the step has a pedestal for mounting on the floor below the step. A parallel lifting mechanism is mounted on the pedestal. The parallel elevating mechanism is a mechanism that can elevate and lower the seat while holding the seat surface horizontal (including a case where the seat is slightly inclined as necessary). For example, the mechanism includes a well-known parallel link and actuator. Can be.
[0016]
A seat is provided at the upper end of the lifting mechanism. Further, a rotation drive mechanism for rotating the seat is provided. Therefore, the user does not need to rotate the seat by himself in an unreasonable posture. Further, it is possible to prevent the user from falling off the seat due to loss of balance during rotation. Further, since the seat does not unexpectedly rotate without providing a separate brake, there is no risk of the user falling over when getting on or off the vehicle.
[0017]
Further fixed to the seat of this step moving lift, so as to go around the seat in an inclined plane, to be lower than the seat surface at the seated portion of the seat and higher than the seat surface at the back portion of the seat. It is desirable to provide a rounded handrail. This handrail can be used as a backrest at the back of the seat. In addition, since it is circular as a whole, there is no protruding portion around, and it does not catch on the clothes and the like of the user. Further, by making the center of the circle coincide with the center of rotation of the seat, contact and collision with the surroundings when the seat rotates can be avoided. Thereby, the lift of the present invention can be more suitably used in a narrow place such as the entrance of a general house. In addition, even when the chair of the lift is rotated with the wheelchair as close as possible to the seat of the lift when transferring between the seat of the lift and the wheelchair, the seat of the lift does not contact the wheelchair.
[0018]
The seating surface is preferably circular in shape according to the shape of the handrail from the viewpoint of design, but from a practical viewpoint, any shape may be used as long as the seating surface fits inside the handrail.
[0019]
The seat may be an ordinary seat having a square (or circular) seating surface, a backrest, and an armrest. In this case, it is desirable that the armrest be a flip-up type, particularly in consideration of transfer to and from a wheelchair.
[0020]
Further, it is desirable to provide a stopper at the lower part of the seat that comes into contact with the floor when the seat is lowered to the lowest position. Thereby, the stability of the step-movement lift in a state where the seat is lowered can be further increased. Further, it is desirable that the height of the stopper be adjustable. By adjusting the stopper by the user, the height when the seat is lowered most can be set according to the user's physique.
[0021]
It is desirable to provide a remote controller for the user to perform operations of raising and lowering and rotating the seat. Thereby, the user can operate the lift in a more comfortable posture. This remote control may be either wireless or wired.
[0022]
【Example】
FIG. 1 shows an embodiment of a lift for moving a step according to the present invention. The pedestal 11 is formed of a frame formed by welding a shaped steel in the shape of a "sun", and feet 12 whose height can be adjusted are provided at the four corners. By adjusting the height of the feet 12, the lift can be stably installed even when the floor surface has irregularities. A support (fixed support) 13 is provided upright on one side of the pedestal 11, and a parallel link mechanism 14 is rotatably attached to the fixed support 13. At the other end of the parallel link mechanism 14, a seat column 20 is held vertically. A seat support 22 is fixed to an upper end of the seat support 20, and a seat 23 is rotatably mounted on the seat support 22. A stopper 21 is provided at a lower end of the seat support 20. The stopper 21 may be vertically movable by a screw.
[0023]
An elevating motor 16 is fixed to the crosspiece passed to the center of the frame of the pedestal 11, and a piston 17 driven by the motor 16 pushes up / down one link of the parallel link mechanism 14.
[0024]
A seat rotation motor 26 is fixed to an upper portion of the seat column 20. The rotational power of the seat rotation motor 26 is transmitted to a gear box 28 via a shaft 27, decelerated by the gear box 28, the rotation direction is changed, and the seat 23 is rotated.
[0025]
The seat 23 has a circular handrail 24 as well as a circular seating surface. The handrail 24 is formed by processing one pipe into a circular shape, and is provided to be inclined with respect to the seat surface. In the seating portion of the seat, the handrail 24 dives below the seating surface, and is slightly higher than the seating surface in the back portion of the seat, and is a backrest. The handrail 24 is fixed to the seat 23 by welding or the like on the side surface (position intersecting with the seat surface) of the seat 23, and is also fixed to the seat 23 by a stay on the back surface.
[0026]
The pedestal 11 is further provided with a control box 29. The control box 29 receives electric power from a household power supply and controls electric power supplied to the elevating motor 16 and the rotating motor 26. Thereby, the elevation and rotation of the seat are controlled. Therefore, the wiring from the control box 29 is connected to the household power source, the elevation motor 16 and the rotation motor 26, respectively.
[0027]
A remote control 30 is connected to the control box 29. The remote controller 30 is provided with four buttons, which correspond to raising, lowering, turning left, and turning right of the seat 23, respectively. While pressing the button, the seat continues each operation. The remote controller 30 is provided with a hook to be hooked on the handrail 24 or the like when the lift is not used.
[0028]
The operation of the lift for moving a step according to the present embodiment will be described. When the seat 23 is raised, electric power is supplied from the control box 29 to the elevating motor 16 by operating the remote controller 30. The rotation of the lifting motor 16 causes the piston 17 to push up the parallel link mechanism 14 and raise the seat 23. When lowering the seat 23, an operation reverse to that at the time of raising is performed. When the elevating motor 16 is stopped at any position within the range in which the elevating can be performed, the elevating motor 16 is fixed at that position by the brake built in the motor, and the seat 23 is stably held at the height at that time. Is done.
[0029]
When rotating the seat 23, electric power is supplied from the control box 29 to the rotation motor 26 by operating the remote controller 30. The rotation driving force of the rotation motor 26 rotates the seat 23 via the shaft 27 and the gear box 28. As in the case of lifting, the rotation of the seat can be stopped at an arbitrary position, and the brake is automatically applied at the stop position.
[0030]
FIG. 2 shows a state where the seat 23 is lowered to the lowest position. At this time, the stopper 21 at the lower end of the seat column 20 comes into contact with the floor surface. In the case where the height of the stopper 21 can be adjusted by a screw, the user sets the stopper 21 at the height of the seat 23 so that the user can easily get on and off the lower stage. It is possible to prevent the seat 23 from being excessively lowered by the remote controller 30 or the like, or from being insufficiently lowered. In addition, the step-moving lift is stabilized when the seat 23 is lowered. It is convenient that the upper end position of the seat 23 can be set in the same manner, and the ascent of the seat 23 stops at that position. FIG. 2 shows a state where the seat 23 is rotated counterclockwise by 90 ° when viewed from above from the state of FIG.
[0031]
FIG. 3 illustrates an example of a state in which the lift for moving a step according to the present embodiment is mounted on the soil at the entrance of a Japanese house. At the entrance of a Japanese house, there is a step between the entrance frame 31 and the soil floor 32. The step-movement lift 10 is installed in a position between the soil spaces 32 as close as possible to the frame 31.
[0032]
A method for a user to go from indoor to outdoor using the step-lifting lift of the present invention will be described with reference to FIG. First, the user moves the seat 23 up and down by operating the remote controller 30 of the step moving lift 10 in the frame 31, and rotates the seat 23 so that the front of the seat 23 faces the direction of the frame 31. After the seat 23 is set to a height and an orientation easy to sit on from the frame 31, the user sits on the seat 23 with his / her back on the dirt floor 32 ((a), (b)). Next, the user rotates the seat 23 with the remote controller 30 so that the front of the seat 23 faces the direction of the dirt 32 ((c)), and further lowers the seat 23 to a height where the dirt 32 can easily rise ((d)). . As described above, when the stopper 21 is adjusted to such a height in advance, the user can keep pressing the down button of the remote controller 30 without being aware of the stop position. When the descent operation stops, the user stands up in the dirt floor 32.
[0033]
In this manner, the seat 23 can be set to a height suitable for the user both when the user sits on the seat 23 from the frame 31 and when the user stands up from the seat 23 to the floor 32. In addition, when the user sits on the seat 23 from the frame 31 and when the user stands on the soil floor 32 from the seat 23, the direction of the user is different. Therefore, the seat 23 must be rotated. Since the operation is performed by the motor, the user does not need to manually rotate the seat. This eliminates the need for the user to take an unnatural posture during the rotation of the seat, so that the user does not have to suffer pain and also prevents accidents such as the user losing balance and falling off the seat. be able to. Further, since the seat does not rotate manually, it is possible to prevent the seat from unexpectedly rotating due to the force applied by the user.
[0034]
Although the method in which the user goes from indoor to outdoor has been described here, when the user enters from indoor to outdoor, it is possible to use the step moving lift of the present invention by a procedure reverse to the above method. it can.
[0035]
Next, a method in which a user transfers from an indoor wheelchair to an outdoor wheelchair using the step-movement lift of the present invention will be described with reference to FIG. First, the user lays the wheelchair 41 for indoor use sideways on the lift 10 for stepping movement in the frame 31. In addition, the user operates the remote controller 30 to move the seat 23 up and down so that the height of the seat surface of the seat 23 is adjusted to the height of the seat surface of the indoor wheelchair 41, and the side surface of the seat 23 and the indoor wheelchair. The seat 23 is rotated in the horizontal direction so that the side of the seat 41 is aligned. In this state, the user slides from the indoor wheelchair 41 to the seat 23 and transfers ((a)).
[0036]
Here, the handrail 24 is installed obliquely to the seat surface of the seat 23 as described above, and a part of the handrail 24 passes below the seat surface. No. Further, since the handrail 24 is circling, the clothes of the user are not caught on the handrail 24 during transfer.
[0037]
Next, the user operates the remote controller 30 to rotate the seat 23 horizontally so that the side surface of the outdoor wheelchair 42 and the side surface of the seat 23 are aligned ((b)). Further, the seat 23 is lowered so that the height of the seating surface of the outdoor wheelchair 42 and the height of the seating surface of the seat 23 match ((c)). Next, the user slides from the seat 23 to the outdoor wheelchair 42 and transfers ((d)). In this way, the user can go outdoors by the outdoor wheelchair 42.
[0038]
The lift for moving steps according to the present invention can be used not only at the entrance but also at various places where steps exist, such as between a bed and a floor.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a lift for moving a step according to the present invention.
FIG. 2 is a perspective view illustrating a state in which the lift for moving the step according to the present embodiment is lowered to the lowest position.
FIG. 3 is a perspective view showing an example of installation of a step-moving lift according to the embodiment.
FIG. 4 is a perspective view showing an example of use of the lift for moving a step according to the embodiment.
FIG. 5 is a perspective view showing an example of use of the lift for moving a step according to the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Lift for step difference movement 11 ... Pedestal 12 ... Foot 13 ... Fixed support 14 ... Parallel link mechanism 16 ... Elevating motor 17 ... Piston 20 ... Seat support 21 ... Stopper 22 ... Seat receiver 23 ... Seat 24 ... Handrail 26 ... Seat Rotating motor 27 Shaft 28 Gear box 29 Control box 30 Remote controller 31 Frame 32 Soil 41 Indoor wheelchair 42 Outdoor wheelchair

Claims (5)

A lift for moving a step,
a) a pedestal for mounting on the lower floor;
b) a parallel lifting mechanism provided on the pedestal;
c) a seat provided at the upper end of the parallel lifting mechanism;
d) a rotation drive mechanism for rotating the seat by a motor;
A lift for moving a step, comprising: Orbiting around the seat in an inclined plane, having a circular handrail fixed so as to be lower than the seating surface at the seating portion of the seat and higher than the seating surface at the back portion of the seat. The lift for moving a step according to claim 1. The step-moving lift according to claim 1, wherein a stopper is provided at a lower portion of the seat to contact the floor when the seat is lowered to a lowermost position. The step-lift according to claim 3, wherein the height of the stopper is adjustable. The step-movement lift according to any one of claims 1 to 4, further comprising a remote controller that operates the motor and the lifting mechanism.

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