JP2000300626A - Auxiliary lift device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an auxiliary lift device capable of helping an elderly people or a disability requiring nursing to move and allowing the elderly people or the disability having a function of some degree in his upper limbs to safely shift, etc., to a wheelchair at a place having a level difference on a floor. SOLUTION: This auxiliary lift device A has a supporter device 1, and a guiding supporter 10 is rotatably fixed between an upper fixing board 14 and a lower fixing board 11. A screw shaft 2 to be driven by an elevating/lowering driving device 3 is fixed to the supporter 10. An elevating and lowering body 4 to be elevated and lowered by the rotation of the shaft 2 is provided at the supporter 10. A transporting device 5 has a supporting plate 53 rotating in a horizontal direction to be opened/closed. The rotation of the body 4 with the rotation of the supporter 10 is executed by a rotation-driving device 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary lift device. More specifically, it can help the elderly and the disabled who need nursing care.For example, it is safe for the elderly and the disabled to transfer to a wheelchair or a toilet seat where there is a step on the floor. Related to what can be done.

[0002]

2. Description of the Related Art In today's aging society, it is an important social issue how to create a place where the elderly and the disabled who need nursing care or their caregivers can easily live. One such approach is barrier-free. Barrier-free is now used in the broad sense of removing social, institutional or psychological barriers, but originally it is meant to remove physical barriers such as eliminating steps in facilities. By promoting barrier-free, it is expected that elderly and handicapped people with physical disabilities can be assisted in their mobility and that their lives will be easier.

However, as a practical matter, it cannot be said that barrier-free is progressing in various facilities and general dwellings. Particularly in ordinary dwellings, if it is made barrier-free from the beginning of construction, it will be difficult to spread it if it is to be renovated later because it will be very expensive. For this reason, even in a home where the elderly or the disabled are, there is usually a step at the boundary between the rooms, such as a toilet and a bathroom, and in reality, the wheelchair cannot be moved.

[0004] As a countermeasure, a lift device for nursing care has been conventionally used to assist the movement of the elderly and the disabled. According to this device, an elderly person or a disabled person can be lifted or lowered with the help of a caregiver, so that the device can be moved on a stepped place such as a toilet or a bathroom.

[0005] As such a conventional apparatus, for example, there are a hoist type provided with rails on a ceiling portion and a mobile type provided with a suspender. What is in widespread use is not a hoist type, which is expensive and has a limited installation location to secure the strength of the ceiling, but a mobile type that is inexpensive and has a wide range of applications. In the movable type, a support is provided on a movable base having casters, and an arm is attached to the support so that the arm can be turned up and down,
In general, a structure is used in which an arm is driven by a hydraulic cylinder to raise and lower a suspension tool.

[0006]

However, the above-mentioned conventional nursing care lift apparatus has the following problems. That is, while having a caster and being movable and convenient,
There are many safety issues, such as being unstable when moving, and extremely dangerous if the caster is forgotten to fix when stopped. In addition, for the above reasons, the operation by the elderly or the disabled is dangerous, and the caregiver must always operate on the side. However, for example, even elderly people with disabilities such as paralysis in the lower limbs and people with disabilities can use the upper limb as normal, such as healthy people. It is also effective. Therefore, it is desirable that the elderly and disabled people move and live with their own powers as much as possible.However, the conventional structure is such that the elderly and disabled people can safely operate the lift device by themselves. is not.

(Object) The present invention solves the above-mentioned problems, and can assist the movement of the elderly and the disabled who need nursing care. For example, an object of the present invention is to provide an auxiliary lift device that enables an elderly person or a disabled person to safely transfer to a wheelchair or a toilet seat in a place where there is a step on a floor or a toilet.

[0008]

Means of the present invention taken to achieve the above object are as follows. According to the first invention, there is provided an assisting lift device for assisting the movement of a person, the supporting lift device having a column to be erected and a transfer means for transferring a person, moving up and down along the column, and An auxiliary lift device, comprising: an elevating body capable of turning in the circumferential direction of the column; and elevating means for elevating the elevating body.

According to a second aspect of the present invention, there is provided an auxiliary lift device for assisting a user to move to an arbitrary position, wherein the auxiliary lift device is provided in parallel with the support column, and is provided in parallel with the support column. A screw shaft that is rotationally driven in the forward and reverse directions by means, having a screw portion screwed with the screw shaft,
An auxiliary body, which is provided with an elevating body that is guided by the column and is raised and lowered by the rotation of the screw shaft, and that can turn, and a transfer unit that is provided on the elevating body and that transfers a person; Lift device.

A third aspect of the present invention is the auxiliary lift device according to the second aspect, wherein the screw shaft is covered with a cover member.

According to a fourth aspect of the present invention, there are provided first and second driving means for turning the elevating body.
Alternatively, it is an auxiliary lift device according to the third invention.

A fifth aspect of the present invention is characterized in that the transfer means has a structure in which a plurality of members are combined, and the members can be opened and closed so as to surround the user by moving the members. An auxiliary lift device according to the first, second, third or fourth invention.

According to a sixth aspect of the present invention, there is provided the first aspect, further comprising a stop means for sensing the height of the elevating body and stopping the elevating body at a predetermined height position. Second,
An auxiliary lift device according to the third, fourth or fifth invention.

The structure of the "elevating drive means" is not particularly limited, but in addition to those using a rotating screw shaft, those using a chain hung endlessly on a sprocket or a wire rope hung on a pulley, or Those utilizing air pressure, water pressure, hydraulic pressure, etc. can also be adopted.

The "post" can have a structure whose length can be adjusted according to the conditions of the installation location, but is not limited thereto. Also, as the fixed structure of the support,
For example, a structure in which the lower end is fixed to the floor, the upper and lower ends are fixed to the floor and the ceiling, or a structure in which the upper and lower ends are fixed to the floor and the side wall. Etc.,
It is not limited to these. In addition, the upright direction of the column is usually a vertical direction, but may be inclined.

The "elevating body" can be structured to expand and contract in the horizontal direction, or can be structured to bend and rotate in the horizontal direction at an intermediate portion, and further to the circumferential direction with the horizontal direction as the axis. A rotating structure can also be used. Further, the structure for rotating the elevating body may be, for example, a structure for rotating around a screw shaft, a structure for rotating around a support, or a structure for providing another rotation center.

The structure of the "transporting means" is not particularly limited as long as it can directly or indirectly safely transport the user (elderly or disabled). For example, fixed chairs, hanging chairs such as swings, hanging tools such as hammocks, ring-shaped ones that the user can hang on their elbows, and a gondola that can be put on a wheelchair, etc. is there.

The "cover member" may cover the whole or a part of the screw shaft, and its structure is not particularly limited. Also, the material is not particularly limited, and is, for example, metal, plastic, rubber (natural or synthetic), wood, or the like, and both hard and soft materials can be used.

The structure of the "stopping means" is not particularly limited as long as it can stop the elevating body at a predetermined height position. For example, a means using a limit switch or a means using an optical sensor is used as means for detecting the height position of the elevating body. Further, these sensing means are provided so as to be movable and adjustable along the column, but may be provided at other places such as a screw shaft.

(Operation) The auxiliary lift device according to the present invention operates as follows. First, a user himself or a caregiver who is an elderly person or a disabled person operates a controller or the like to adjust the height and the turning angle of the elevating body. The turning angle of the elevating body may be adjusted manually in some cases. The user can hold, support,
Be placed or suspended. This holding, supporting, placing or hanging may be performed by the user himself or by a caregiver.

When the lifting / lowering drive means is driven, the lifting / lowering body is guided along the columns to ascend or descend. When the height of the user being transferred by the lifting means transfer means reaches a predetermined height, the lifting body is stopped. Then, the elevating body is turned by the turning drive device or manually to move the user to a predetermined position. Thereafter, the user moves to, for example, a wheelchair, a toilet seat, or a bathtub, and completes the movement. As described above, the auxiliary lift device according to the present invention is configured such that the elevating body is moved up and down along the columns erected at the installation location, so that it is excellent in stability during operation and has a certain function for the upper limb and the elderly. For a disabled person, for example, the elderly or disabled person can safely transfer to a wheelchair on a floor with a step or a toilet seat in a toilet.

When the lifting drive means uses a screw shaft and the screw shaft is covered with a cover member, the lubricating oil applied to the screw shaft adheres to the user and becomes dirty, It is safe without having to worry about pinching clothing in the threaded part of the screw part.

In the apparatus having a drive means for rotating the elevating body, it is not necessary to manually rotate the elevating body.
This is particularly convenient when the user himself / herself operates the apparatus while being transferred by the transfer means.

In the case where the transfer means has a structure in which a plurality of members are combined and the members can be opened and closed so that the members can be moved to surround the user, if the user has a certain function in the upper limb, For example, it is possible to use such that the user enters the inside of the member and hangs on his / her elbow to be grasped. Therefore, as compared with the case where the whole body enters the hanging chair or the hanging tool, for example, the movement can be performed quickly by an amount that can be easily transferred.

In the apparatus having a stopping means for sensing the height of the elevating body and stopping the elevating body at a predetermined height position, the range in which the elevating body is raised and lowered is necessary and sufficient according to the purpose of use. Since it is possible to limit the range, it is possible to prevent the user from accidentally ascending to a high and dangerous position when the user himself uses it, and to use it safely.

[0026]

Embodiments of the present invention will be described in more detail with reference to the drawings. FIG. 1 is an explanatory view showing a first embodiment of an auxiliary lift device according to the present invention, FIG. 2 is an explanatory view of a main part showing a mounting structure of an elevating body, and FIG. FIG. 4 is an explanatory view showing the structure of the transfer device, and FIG. 5 is an explanatory diagram showing a state in which the transfer device is rotated upward.

The auxiliary lift device A includes a column device 1 erected vertically at an installation location, a screw shaft 2 serving as a vertical drive unit provided along the column device 1, and a vertical drive for driving the screw shaft 2. The apparatus 3, an elevating body 4 that moves up and down by rotation of the screw shaft 2, a transfer device 5 for transferring a user, and a turning drive device 6 that turns the elevating body 4
It has.

The support device 1 has a guide support 10 formed of a square tube (square tube) made of metal and having a required length. At the lower end of the guide post 10, a lower fixing plate 11 for fixing to the floor at the installation location is attached. Lower fixing plate 11
And the guide post 10 are mounted via a bearing 12, and the guide post 10 is rotatable. On the upper part of the guide support 10, there is provided an adjustment support 13 which is telescopic and capable of adjusting expansion and contraction. An upper fixing plate 14 for fixing to the ceiling is provided at the upper end of the adjustment column 13 through a bearing 15.
It is attached in the same way as 1.

On the lower and upper sides of the guide column 10, bearings 16 and 17 are provided to protrude. The screw shaft 2 is rotatably mounted between the bearings 16 and 17. The screw shaft 2 has a structure in which a screw portion is formed on a peripheral surface of a metal shaft over substantially the entire length. On the upper side of the screw shaft 2, an elevating drive device 3 for rotating and driving the screw shaft 2 is provided.

The lifting drive 3 has a motor 30. The rotation of the rotating shaft of the motor 30
And a worm wheel 32 provided on the screw shaft 2
And the power is transmitted to the screw shaft 2. The motor 30 can be controlled to rotate the rotating shaft in both the forward and reverse directions, whereby the screw shaft 2 can be rotated in both the forward and reverse directions. Reference numeral 33 denotes a case, and reference numeral 34 denotes a wired controller. The controller 34 can operate not only the lifting / lowering drive device 3 but also the turning drive device 6 described later.

The turning drive 6 is provided with the lower fixed plate 11
It is provided in. The turning drive 6 has a motor 60. The rotation of the rotating shaft of the motor 60 is controlled by a worm 61 and a worm wheel 62 provided on the guide post 10.
, And is transmitted to the guide column 10.
The motor 60 can be controlled to rotate the rotating shaft in both forward and reverse directions, whereby the guide post 10 can be rotated in both forward and reverse directions, similarly to the screw shaft 2. The elevating body 4 is attached to the guide column 10 so as to be able to move up and down. Reference numeral 63 denotes a case.

The elevating body 4 is made of metal, and is vertically inserted through the through hole 4 to be slidably fitted to the guide post 10.
It has 0. Inside the insertion hole 40, the guide post 10 is provided.
Rollers 41 that contact the front and rear side surfaces (guide surfaces) are provided at four locations on each side, two at the top and two at the bottom. Each roller 4
By the action of 1, the movement can be made smooth while supporting the force in the load direction in which the front part is lowered.

In the vicinity of the insertion hole 40, there is provided a screw hole 42 also penetrating vertically. The screw hole 42 is screwed with the screw shaft 2,
By rotating the screw shaft 2 in both forward and reverse directions,
The elevating body 4 moves up and down while being guided by the guide columns 10.
In this embodiment, the screw shaft 2 is driven. However, the screw shaft 42 may be fixed, and the screw hole 42 may be rotated to move up and down. The lifting body 4 is provided with an arm 43 having a required length.
A mounting hole 44 penetrating in the up-down direction is provided at the distal end of 3. The transfer device 5 is attached to the mounting hole 44.

Reference numeral 7 denotes an upper limit setting tool constituting stop means, which can be fixed to an arbitrary position on the guide column 10 by a fixing screw 70. A limit switch (not shown) is provided on the bottom surface side of the upper limit setting tool 7.
Rises and comes into contact with the limit switch, and when the switch is turned on, a control signal is sent and the lifting drive device 3 stops,
The lifting body 4 also stops. Alternatively, a lower limit setting device may be provided by attaching a device having a structure similar to that of the upper limit setting device 7 (the limit switch is on the upper surface side) below the elevating body 4.

The transfer device 5 is of a type used by a user with his or her elbows (or side parts) hung and hanging. The transfer device 5 has a base member 50. A pin (not shown in the figure) for mounting in the mounting hole 44 is provided at the bottom of the base member 50, and the lower portion of the mounting hole 44 is prevented from coming off by a fastening screw (not shown). . The base member 50 has a two-plate structure with one end hinged, and includes a fixed plate 501 and a movable plate 502 that rotates vertically. The pivotal support member 51 is provided on the upper surface of the movable plate 502.

The support member 51 is provided with support plates 52 and 53 curved in the horizontal direction so as to support the base end on the vertical axis. The support plates 52 and 53 are attached with the curved concave portions facing each other, and are rotatable in the horizontal direction. The support plates 52 and 53 are formed in a size and a shape that can surround a person's chest or torso when closed. In the present embodiment, the support plates 52, 53
Are rotated independently of each other, but by providing a gear at the center of rotation of both and meshing,
A structure in which both move at the same angle at the same time can be adopted.
On the upper portions of the support plates 52, 53, plastic contact members 54, 55 whose surfaces are made non-slip are attached. If there is no problem in strength, a flexible material can be used.

On the outer surfaces of the supporting plates 52 and 53, locking projections 57 for attaching the suspension belt 56 are provided at three places. The suspension belt 56 is usually attached across the support plate 52 and the support plate 53, but can also be attached to the locking projection 57 of one of the support plates, or can be removed if unnecessary. Note that the support plates 52 and 53 (including the contact members 54 and 55) can be turned upright to stand up, so that they are not in the way when not in use. In addition, when the user moves from a wheelchair or the like, the user does not get in the way and can come closer to the vehicle, which is convenient.

(Operation) FIG. 6 is an explanatory view showing a use state of the auxiliary lift device. Referring to FIGS. 1 to 6,
The operation of the auxiliary lift device according to the present invention will be described by taking, as an example, a case where a user moves from a bed to a wheelchair.

The user M himself / herself or the caregiver on the bed 8 operates the controller 34 to move the lifting / lowering driving device 3 and the turning driving device 6 to adjust the height and the turning angle of the lifting / lowering body 4. The support plates 52 and 53 of the transfer device 5 provided on the elevating body 4 are opened, and the body of the user M is inserted and closed. In addition, if necessary, the suspension belt 56 is hung on the buttocks or the legs to ensure that the weight is supported.

When the lifting drive 3 is driven, the lifting body 4 is guided along the guide column 10 and rises. When the height of the user M being transferred by the transfer device 5 of the lifting body 4 reaches a predetermined height, the lifting body 4 is stopped. Then, the elevating body 4 is turned by the turning drive device 6 to move the user M to the position of the seat of the wheelchair 9. Thereafter, the user M removes the suspension belt 56, opens the support plates 52 and 53, and moves to the wheelchair 9.

FIG. 7 is an explanatory view showing a second embodiment of the auxiliary lift device according to the present invention. In the drawings, the same or equivalent parts as those of the auxiliary lift device A are denoted by the same reference numerals (the same applies to FIGS. 8, 9, and 10 described later). In the present embodiment, the transfer means is the chair 5a.
Further, a turning drive device for turning the elevating body 4 is not provided, and the structure is such that the turning is performed by manual operation of a caregiver. That is, in order to fix the turning position of the elevating body 4,
A structure is employed in which a plurality of fixing pins 110 are inserted into and removed from locking holes (not shown) provided in the lower fixing plate 11.

FIG. 8 is an explanatory view showing a third embodiment of the auxiliary lift device according to the present invention. In the present embodiment, the transfer means is the hanging chair 5b. Since the hanging chair 5b can be grasped by the user M himself surrounded by the frame, the safety is higher than that of the chair 5a. A cover member 20 having a required length is provided above and below the elevating body 4. The cover member 20 is formed of a flexible plastic in a bellows hose shape.
, It is possible to expand and contract as the lifting body 4 moves up and down. According to this, it is possible to prevent the lubricating oil applied to the screw shaft 2 from adhering to the user M and contaminating the clothes, and preventing the clothing from being caught in the screwing portion between the screw shaft 2 and the screw hole 42. In addition, the turning of the elevating body 4 is performed by the turning drive device 6 as in the first embodiment.

FIG. 9 is an explanatory view of a main part of a fourth embodiment of the auxiliary lift device according to the present invention, and FIG. 10 is an explanatory plan view of the auxiliary lift device shown in FIG. In the present embodiment, the elevating body 4a is made of angle iron, and is lighter than the elevating body 4. A nut 45 for screwing the screw shaft 2 is fixed to the lower surface of the upper member on the rear side of the elevating body 4a. Further, roller attachments 18 are fixed to the upper and lower two portions of the vertical member at the rear end of the elevating body 4a,
A roller 19 is provided at the tip of each roller attachment 18.

Each roller 19 has a hollow guide support 10.
It is accommodated in the inside of a so as to be movable only in the vertical direction. An insertion groove 100 is provided over the entire length of the guide post 10a on the mounting side of the lifting / lowering body 4a, and the roller attachment 18 is inserted through the insertion groove 100. According to this structure, the elevating body 4a can move up and down in a horizontal state without rattling due to the rotation of the screw shaft 2. A transfer device 5c is attached to the tip of the arm 43 of the elevating body 4a at substantially the same height as the arm 43. The support plates 52a and 53a are
, And can be opened and closed in the horizontal direction. Note that the support plates 52a and 53a have
A contact member can be provided similarly to the transfer device 5 described above.

In the fourth embodiment of the auxiliary lift device A, the transfer device 5c has substantially the same height as the portion supporting the elevating body 4a, which is lower than that of the first embodiment. ing. Accordingly, when the weight of the user is applied to the transfer device 5c, the center of gravity is lowered, so that the stability is improved and the safety is improved. Further, for example, the arm 43 may be formed in a rod shape and provided horizontally, and may be structured to rotate in the axial direction at an intermediate portion. According to this, since the support plates 52a and 53a can be made vertical as needed, it is possible to prevent a business trip from the wall surface when turning it when not in use and attaching it to the wall. No. In the case of this structure, means (engagement, pin attachment, screw attachment, etc.) for fixing the support plates 52a, 53a in a horizontal state which is a normal use state is provided. The turning of the elevating body 4 is performed by a turning drive device 6 (not shown in FIGS. 9 and 10), as in the first embodiment.

The terms and expressions used in the present specification are merely illustrative and not restrictive, and do not exclude the terms and expressions equivalent to the above terms and expressions. Further, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the scope of the technical idea.

[0047]

The present invention has the above configuration and has the following effects. (A) The auxiliary lift device according to the present invention has excellent stability at the time of operation because the elevating body moves up and down along the column erected at the installation location, and the elderly and obstacles having some function in the upper limb. For example, an elderly person or a disabled person can safely transfer to a wheelchair in a place with a step on the floor or a toilet seat in a toilet.

(B) If the lifting drive means uses a screw shaft and the screw shaft is covered with a cover member, the lubricating oil applied to the screw shaft adheres to the user and becomes dirty, It is safe without having to worry about pinching clothes between the screw shaft and the screwed part of the screw part.

(C) In the apparatus provided with the driving means for rotating the elevating body, there is no need to manually rotate the elevating body, so that the user operates the apparatus in a state where the user himself is transported by the transport means. It is convenient when you do.

(D) If the transfer means has a structure in which a plurality of members are combined, and the members can be opened and closed so that the members can be moved to surround the user, the upper limb has a certain function. If so, for example, it is possible to use it by entering the inside of the member and hanging it with an elbow. Therefore, as compared with the case where the whole body enters the hanging chair or the hanging tool, for example, the movement can be performed quickly by an amount that can be easily transferred.

(E) If the height of the elevating body is sensed and the stopping means for stopping the elevating body at a predetermined height is provided, the range in which the elevating body moves up and down according to the purpose of use. Since it is possible to limit the range to a necessary and sufficient range, it is possible to prevent the user from accidentally ascending to a high and dangerous position, for example, when the user himself uses the device, and to use the device safely.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a first embodiment of an auxiliary lift device according to the present invention.

FIG. 2 is an explanatory view of a main part showing a mounting structure of the elevating body.

FIG. 3 is an explanatory view showing a state in which the elevating body is turning.

FIG. 4 is an explanatory view showing the structure of a transfer device.

FIG. 5 is an explanatory diagram showing a state in which the transfer device is rotated upward.

FIG. 6 is an explanatory diagram showing a use state of the auxiliary lift device.

FIG. 7 is an explanatory view of a main part of a second embodiment of the auxiliary lift device according to the present invention.

FIG. 8 is a main part explanatory view showing a third embodiment of the auxiliary lift device according to the present invention.

FIG. 9 is an explanatory view of a main part of a fourth embodiment of the auxiliary lift device according to the present invention.

FIG. 10 is an explanatory plan view of the auxiliary lift device shown in FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS A Auxiliary lift device 1 Support device 10, 10a Guide support 100 Insertion groove 11 Lower fixing plate 12 Bearing 13 Adjustment support 14 Upper fixing plate 15 Bearing 16, 17 Bearing 18 Roller attachment 19 Roller 2 Screw shaft 20 Cover member 3 Elevating Drive device 30 Motor 31 Worm 32 Worm wheel 33 Case 34 Controller 4, 4a Elevating body 40 Insertion hole 41 Roller 42 Screw hole 43 Arm 44 Mounting hole 45 Nut 5, 5c Transfer device 50 Base member 501 Fixed plate 502 Movable plate 51 Shaft Support members 52, 53 Support plates 52a, 53a Support plates 54, 55 Abutment members 56 Suspension belts 57 Locking projections 58 Shaft pins 6 Turning drive 60 Motor 61 Warm 62 Worm wheel 63 Case 7 Upper limit setting tool 70 Fixing screw 8 Bed 9Chair 5a chair 110 fixing pin 5b hanging seat

[Procedure amendment]

[Submission date] August 26, 1999 (1999.8.2
6)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

FIG.

FIG. 2

FIG. 3

FIG. 4

FIG. 5

FIG. 7

FIG. 6

FIG. 8

FIG. 9

FIG. 10

Claims (6)

[Claims] An assisting lift device for assisting the movement of a person, comprising an upright column, and a transfer means for transferring a person, moving up and down along the column and surrounding the column. An auxiliary lift device comprising: an elevating body (4) capable of turning in a direction; and elevating means for elevating the elevating body (4). 2. An auxiliary lift device for assisting a user to move to an arbitrary position, wherein the auxiliary lift device is provided in parallel with the support column, and is rotated in forward and reverse directions by a driving means. A driven screw shaft (2), having a screw portion screwed with the screw shaft (2);
Elevating body (4), which is guided by the support column by the rotation of the screw shaft (2) and ascends and descends, is capable of turning, and is provided on the elevating body (4), and includes transfer means for transferring a person. An auxiliary lift device. 3. The auxiliary lift device according to claim 2, wherein the screw shaft (2) is covered with a cover member (20). 4. The auxiliary lift device according to claim 1, further comprising a driving means for rotating the lifting body (4). 5. The transfer means combines a plurality of members,
The auxiliary lift device according to claim 1, 2, 3, or 4, wherein the auxiliary lift device has a structure that can be opened and closed so that the member can be moved to surround the user. 6. The lifting body (4) senses the height of the lifting body (4),
The auxiliary lift device according to any one of claims 1, 2, 3, 4, and 5, further comprising a stopping means for stopping (4) at a predetermined height position.