WO1998022070A1

WO1998022070A1 - Device for lifting up people from a sitting to an upright position

Info

Publication number: WO1998022070A1
Application number: PCT/EP1997/005299
Authority: WO
Inventors: Zarko Lalovic
Original assignee: Zarko Lalovic
Priority date: 1996-11-16
Filing date: 1997-09-26
Publication date: 1998-05-28
Also published as: DE19647498A1

Abstract

The invention relates to a device for lifting up people from a sitting to an upright position, comprising a frame (12) and a foot rest (18) mounted thereon, which has a lifting device (21) comprising at least one cable pull device (26) having a strap (31), wherein the foot rest (18) and the lifting device (21) mounted thereon are rotationally fitted on the frame (12) by means of a rotating drive unit (41).

Description

DEVICE FOR RISING UP PERSONS FROM A SITTING TO AN UPRIGHT POSITION

The invention relates to a device for raising people from a seated to an upright position according to the preamble of claim 1.

From DE-U 295 07 316 a device for straightening people from a seated position into an upright position has become known, which is particularly intended for use in toilets. The aim of this is to ensure that persons who are dependent on a wheelchair due to their disability or illness and are therefore not able to switch independently from a wheelchair to a toilet due to their physical condition can switch independently from bed to a wheelchair or the like, with the help this device allows such a change without the support of a third person. Especially when changing from a wheelchair to a toilet, the presence of a helper often causes discomfort. This person feels disturbed in their privacy.

This device, which is provided in particular as a lifting device in toilets, has a crane-like device which has a horizontally arranged swivel arm on which a carriage with a cable pulling device is arranged to be horizontally displaceable. A lifting device arranged on a rope can be moved up and down by the cable pulling device, as a result of which the person raised by a belt is held upright on a platform arranged on the lifting device. Here, a stopper comes to rest on a section of the lifting device, as a result of which further Rolling up the rope allows lifting the device and thus turning. Thus, an independent change from a wheelchair to a toilet can be made possible. However, this device has the disadvantage that there is a fixed arrangement.

Furthermore, a device for erecting people has become known from the company ARJO Systeme für Rehabilitation GmbH in Hofheim. This device has a U-shaped chassis with a platform on which a column arranged at right angles to the chassis is provided. A knee brace is arranged as an abutment in the lower area of the column. At the upper end of the column, a lifting device is arranged pivotably about an axis of rotation which is fixed to the vertical column and has a right and left arm which is directed towards the person to be erected. Ropes are provided at the end of these arms, on which a sling cushion or a belt is fastened, which is placed around the body of the person to be erected. The lifting device is driven by a motor, as a result of which the free ends of the arms move along an arc of a circle due to the axis of rotation which is fixedly arranged to the column. H. seen from a seated position, first a tensile force is exerted on the person, which acts vertically upwards. This can lead to severe constrictions in the armpit area. Especially with very frail people, this is perceived with great discomfort.

Due to its chassis, this device enables mobile use. However, this device also has the disadvantage that the user of such an erecting device is dependent on a third person who operates the lifting device.

The invention is therefore based on the object of providing a device for straightening people which can be used universally and also enables use of the toilet without a helper.

This object is achieved by the features of claim 1.

The rotatable arrangement of the footrest and the lifting device arranged thereon to the frame makes it possible for, for example, a device positioned on a toilet to switch independently from a wheelchair to the Toilet is possible without the help of a third person. The person can drive up to the device with their wheelchair and move to an upright position after putting on the belt. A rotary drive can then be actuated, which means that any rotational position can be set. As soon as the erect person is above the toilet, the lifting device can be actuated again to get into a sitting position.

It is particularly advantageous that the rotary drive can be operated by the person using the device himself. In particular, such a device can be installed in public toilets, so that the independence of people who are dependent on the wheelchair can be increased.

According to an advantageous embodiment of the invention, it is provided that the footrest and lifting device can be rotated through 360 °. The rotary drive is advantageously designed such that rotation can take place regardless of the direction of rotation and the number of rotations is unlimited.

According to a further advantageous embodiment of the invention it is provided that an indexable rotation can be provided. As a result, a defined number of degrees of, for example, 90 ° or 180 ° can be entered, for example, when the device is used as a changeover aid for the toilet, so that a risk of injury to a device positioned near a wall can also be excluded.

According to a further advantageous embodiment of the invention it is provided that the rotary drive is arranged below the footrest. This increases the accessibility and size of the footrest and minimizes the risk of injury.

According to a further advantageous embodiment of the invention it is provided that a rotary drive is arranged between a base plate arranged on a frame and the footrest. This is advantageously designed as a chain gear drive. Likewise, a gear or friction gear as well as a belt drive or the like can be used. The preferably used chain gear drive can also make it possible for a gear ratio to be provided between a driven and driving gear, so that minimal Forces are required to turn the footrest with the lifting device and the person standing on the footrest.

According to a further advantageous embodiment of the invention, it is provided that a substantially vertically upwardly projecting axis is provided on the driving gearwheel, at the free end of which a handwheel is arranged. This enables a manual rotation of the footrest with the lifting device. This configuration makes it possible that such devices for erecting and moving people are particularly suitable for publicly accessible toilets. Furthermore, such devices, for example for use in public toilets, are made of metallic materials that can meet the hygiene requirements.

According to a further advantageous embodiment of the invention, it is provided that a driven gear wheel with a radial bearing accommodating the footrest is provided in the axis of rotation. This enables direct drive to take place, which at the same time enables a space-saving design. Furthermore, it is advantageously provided that the footrest has support roller bearings which are uniformly spaced apart from one another in the edge region and hold the footrest plane-parallel to the base axis and enable rotation.

According to a further advantageous embodiment of the invention it is provided that the footrest has a locking device which engages on the base plate. This enables the set position of the footrest and the lifting device to the frame to be maintained after a desired rotation, for example to enable the person sitting upright or the person seatable on the footrest to be transported from the bed to the toilet during transport, for example, without this the preferably mobile frame can rotate relative to the footrest and lifting device.

According to a further advantageous embodiment of the invention it is provided that the frame, the base plate and the lifting device are arranged with releasable connections to one another. This can make it possible for such a lifting device to be packed together in a small installation space in order to be able to make such devices transportable by car. Furthermore, be provided that the lifting device can also be provided by an advantageously designed plug-in coupling for the tubular linkage. The frame, which is advantageously formed from struts and is formed by four struts arranged at right angles to one another, can likewise be arranged via releasable connections to one another. These releasable connections can be provided, for example, in the form of screw connections or snap-in and snap connections. Plug connections can also enable quick assembly and disassembly of the device.

According to a further advantageous embodiment of the invention, it is provided that the lifting device has a column with a first section on which a footrest is arranged. This is followed by a second section which is chamfered at a certain angle with respect to the first column, which preferably runs vertically upwards. A preferably manually operable cable pull device is provided on this second section. Above the second section there is in turn a third section running essentially vertically upward, which has a deflection roller at its free upper end. This advantageous embodiment of the column of the lifting device, which essentially corresponds to a hyperbolic sinus function, enables a balance of forces to be created as soon as the user has been transferred in an upright position via the cable pulling device or lifting device. For this purpose, it is advantageously provided that the first section is arranged on the footrest outside the axis of rotation. At the same time, this enables a balance to be achieved between a person held upright and the lifting device, so that the common center of gravity lies in or near the axis of rotation.

According to a further advantageous embodiment of the invention, it is provided that the cable pull device has a transmission gear, so that simple manual operation is provided. In addition, the cable pulling device advantageously has a locking device, which can be maintained immediately after the cable pulling device has been actuated, irrespective of whether it has been erected or set down, the position last set. This ensures the operation of such a device without it being possible for the person to be suddenly lowered in an upright position. Further embodiments and advantageous embodiments of the invention are specified in the description, the patent claims and the drawings.

In the drawing, a preferred embodiment is shown in more detail. Show it:

1 is a schematic side view of the device according to the invention,

2 shows a schematic side view according to arrow A in FIG. 1,

Fig. 3 is a plan view of the device according to the invention with a partial section of a footrest and

4 shows an advantageous development of the device according to FIG. 2.

1 to 4, the device 11 according to the invention for erecting people from a seated to an upright position is shown schematically. This device 11 has a frame 12 on which, for example, rollers 13 are arranged. This chassis enables the device 11 to be moved freely in the room and can be brought up to a bed or a chair. Alternatively, it can be provided that instead of the rollers 13 guide elements are provided, which are arranged in rails or guides or the like. This is particularly advantageous in applications that require a certain reciprocating movement of the device. Furthermore, it can be provided that the frame can be fixed in place on the floor.

The frame is formed by struts 14, 15, the struts 14 being shorter than the struts 15. The two struts 14 are spaced parallel to one another and arranged at right angles to the struts 15 which are also spaced parallel to one another. A substantially H-shaped frame 12 can thereby be formed. The rollers 13 are arranged on the outer free ends of the struts 15, so that the frame can have a high degree of stability. A base plate 17 is detachably fastened between the struts 14. This advantageously has a rectangular basic shape. A footrest 18 is provided parallel to the base plate 17, which is also plate-shaped and has a rectangular or square base area. The footrest 18 is rotatable relative to the base plate 17 the axis of rotation 19 mounted. A lifting device 21 is arranged on the footrest 18 outside the axis of rotation 19. This lifting device 21 has a column 25 with a first vertical first section 22 arranged at right angles to the footrest 18, which merges into a second section 23 and has an inclination with respect to the first section 22. The second section 23 is followed by a third section 24, which projects essentially vertically upwards. The second and third sections 23, 24 receive a cable pulling device 26, which consists of a cable winch 27 with at least one deflection roller 28 and a cable 29, on the free end of which a belt 31 or loop cushion is provided. The cable winch 27 advantageously has a gear ratio, so that a power-saving actuation by a hand crank 32 is made possible. From this winch 27, the rope 29 runs over a plurality of deflection rollers 28 within the second and third sections 23, 24 of the tubular column 25. At the upper end of the third section 24, the rope 29 emerges from the tubular third section 24.

A knee support 33 is provided in the first section 22 of the lifting device 21. This knee brace 33 is fastened in its central area to the first section 22 and engages in the outer area on tubes 34 which are arranged in mirror image to the lifting device 21. These tubes 34 are further designed as a type of railing, so that on the one hand the person to be erected can find a secure hold on a horizontal section 36 and the vertical sections 37 can at the same time prevent the footrest 18 from sliding sideways.

Between the base plate 17 and the footrest 18, a rotary drive 41 is provided which can be operated manually via a handwheel 42. The handwheel 42 is advantageously arranged in a transition region between the first and the second section 22, 23, so that the user has good access to the handwheel 42 both in an approximately seated position and in an upright position. From this, a vertically arranged axis 43 leads to the rotary drive 41, the axis 43 penetrating the footrest 18 and having a first gear 46 at its end arranged between the base plate 17 and the footrest 18. This first gear 46 is in rotary connection with a second gear 48 via a drive chain 47. The axis of rotation 19 of the second gear 48 lies in the axis of rotation 19 of the lifting device 21. The second gear 48 is connected to the base plate 17 via a radial bearing 49 attached. The first gear 46 is small compared to the second gear 48, so that a reduction is possible in order to be able to rotate the footrest 18 and lifting device 21 simply relative to the frame 12 even when the weight of the user acts on the footrest 18.

On the base plate 17 or footrest 18, support roller bearings 51 are provided, which are advantageously arranged uniformly distributed on a circular diameter, not shown, in the outer edge region of the footrest 18 and the base plate 17. This can make it possible for the load outside the axis of rotation 19 to be absorbed by a person standing on the footrest 18 and for a slight rotation to be made possible. The support roller bearings 51 are arranged via a screw connection to the base plate 17 and / or base plate 18, so that they can be replaced easily and quickly as needed after wear.

The lifting device 21 has a course of the first to third sections 22 to 24 of the column 25 which roughly corresponds to a sinus hyperbolic function. The lower end of the first section 22 is arranged eccentrically to the axis of rotation 19. It can thereby be achieved that, when the lifting device is actuated, a balance can be achieved by the deflection point 52, which is also outside the axis of rotation 19 and in the opposite direction, and which has a common center of gravity which is in or near the axis of rotation 19. This in turn ensures that one-sided loading of the radial bearing 49 and the support roller bearing 51 can be avoided. In addition, the footrest 18 and the lifting device 21 can be rotated more easily. The height of the deflection point 52 is dimensioned such that a user of average size is transferred from a seated position to an upright position, in which the resulting tensile force forms a diagonally upward tensile force. This allows simple and comfortable alignment for the user, in which a uniform alignment movement is made possible. In addition, this tensile force, which runs diagonally upwards, makes it possible for the belt 31 or the loop cushion not to cut into the armpit area during the erection process.

Furthermore, an auxiliary device 71, as shown in FIG. 4, can optionally be provided, which can be attached to the column 25. The auxiliary device 71 has an articulated connection 72, via which the auxiliary device 71 can be attached to the column 25 is. The articulated connection 72 is advantageously fitted in the first section 22 of the column 25. Alternatively, this can also be arranged on the second section or at an otherwise suitable position of the lifting device 21. The articulated connection 72 can be fastened to the column 25 via a detachable screw connection. Struts 73 engage the articulated connection 72 and receive a support tube 74 at an opposite end. The support tube 74 is designed as a bracket which has two angled free ends 76. These free ends point to the user. Depending on the size and stature of the user, the free ends 76 may be adjustable to the width of the rib cage so that these free ends 76 can be positioned under the armpits of the user to aid in straightening the seated person into an upright position.

The struts 73 are formed in two parts, so that their length can in turn be adjusted to the person via a clamp connection.

The combination of the auxiliary device 71 and the belt 31 can advantageously make it possible for the person to be transferred into an upright position in a pleasant manner. At the same time, an upright position of the spine can be maintained, so that the person can be properly straightened from an orthopedic point of view.

The auxiliary device 71 can advantageously have a quick-release device on the articulated connection 72, so that it can be attached and removed either easily and quickly. A sheathing is advantageously provided on the support tube 74, so that there is a soft contact surface. This sheath can be, for example, a foam or other resilient material or padding.

Furthermore, it is advantageously provided, as shown in FIG. 4, that a strap 81 is provided between the pulling rope 29 and the loop 31, which receives the loop in a U-shape, so that the loop is distributed evenly and comfortably on the back, without the chest being constricted.

The device 11 described in Figures 1 to 4 is particularly intended for robust use in public toilets. Metallic material is largely used for this. In addition, the manual drive is particularly suitable for because otherwise expensive measures for explosion protection would be required. Furthermore, it is provided that the knee support 33 and the belt 31 are made of a soft plastic material, which can meet the requirements for hygiene.

Alternatively, it can be provided that an electric motor-driven rotary drive 41 is provided for domestic needs or in hospitals. The energy required for this can be provided via accumulators, which can also be arranged on the footrest 18. In addition, the cable pulling device 26 can also be electrically driven. Another possible embodiment is the use of other materials such as plastic or fiber-reinforced plastic, in particular for the knee brace 33 and the belt 31.

Furthermore, it can be provided according to the invention that the releasable connections 16 of the frame 12 are designed as easily and quickly releasable connections. These can be snap or snap connections, for example, or simple screw threads or the like. Furthermore, it can be provided that the lifting device 21 has plug connections between the sections 22, 23 and 24, as a result of which this column 25 can be folded together to a small structural dimension. It is advantageously provided that the lifting device 21 is arranged with its first section 22 detachable from the footrest 18, as is the axis of rotation 43. This can make it possible for devices 11 of this type to be dismantled quickly and easily for transport and require a small installation space. Furthermore, it can be provided that 16 articulated connections are provided instead of the detachable connections, so that the device 12 can be folded to a small size, so that it can also be stowed in the car in analogy to the wheelchair.

Furthermore, it can be provided that an anti-slip covering is provided on the footrest 18 so that a secure hold can be provided.

This device 11 can be used as follows:

A person sitting in a wheelchair, for example, can drive the wheelchair to the device 11, the wheelchair being able to be positioned between the struts 15 of the frame 12 and the strut 14. After the belt 31 around the Chest is placed, the legs can be placed on the footrest 18. The user can then bend forward in the direction of the lifting device 21 and actuate the hand crank 32 of the cable winch 27, so that the belt 31 is slowly moved diagonally upward in the direction of the deflection point 52. After the user is in an upright position, he can operate the handwheel 42 to initiate rotation. This rotation can be predetermined so that, for example, locking devices are provided which restrict rotation for a specific range of rotation. After the rotary movement has been carried out, the user can again operate the hand crank in order to slowly move into a seated position. The cable winch 37 is advantageously designed in such a way that a locking device engages immediately after the end of the actuation, in order to prevent the cable 29 from coming loose on its own. This device according to the invention provides that a third person is not required, for example when changing from a wheelchair to a toilet, provided that the device 11 has been positioned in front of the toilet.

If a person is to be moved from one place to another with the device 11 over a long distance, a locking device 61 is actuated, which arranges the footrest 18 in a rotationally fixed manner relative to the base plate 17. This can ensure that an unwanted rotational movement of the footrest 18 and lifting device 21 is avoided during transport. This locking device 61 can cooperate with stops which are provided for limiting the rotary movement. Such a locking device 61 can be designed as a plug element which is resiliently arranged on the footrest or as a bolt which can be inserted and locked into a bore in the base plate 17. For such a transport it can be provided that a seat can be attached to the base plate 17, the footrest 18 or to the frame 12 on which the person can sit during the transport. The seat can be removed after use.

Claims

EXPECTATIONS

1. Device for raising people from a seated to an upright position with a frame (12) and a footrest (18) arranged thereon, on which a lifting device (21) is arranged, which has at least one cable pulling device (26) with a belt ( 31), characterized in that the footrest (18) and the lifting device (21) arranged thereon can be rotated relative to the frame (12) with a rotary drive (41).

2. Device according to claim 1, characterized in that the footrest (18) can be rotated through a plurality of 360 ° to the frame (12).

3. Apparatus according to claim 1 or 2, characterized in that the footrest (18) is rotatable independently of the direction of rotation to the frame (12).

4. Device according to one of the preceding claims, characterized in that an indexable rotation is provided with a definable number of degrees.

5. Device according to one of the preceding claims, characterized in that the rotary drive (41) is arranged below the footrest (18).

6. Device according to one of the preceding claims, characterized in that the rotary drive (41) has a preferably flat gear, which can be actuated manually with a handwheel (42).

7. Device according to one of the preceding claims, characterized in that between a frame (12) forming struts (14, 15) a base plate (17) is arranged on the spaced apart the platform (18) is rotatably mounted.

8. Device according to one of the preceding claims, characterized in that a gear (46, 47, 48) is arranged between the base plate (17) and the footrest (18).

9. The device according to claim 8, characterized in that a sprocket gear is provided.

10. The device according to Anspmch 8, characterized in that a belt gear or friction gear is provided.

11. Device according to one of the preceding claims, characterized in that the rotary drive (41) has a first gear (46) which is arranged on an axis (43) and has a handwheel (42) at its opposite end.

12. Device according to one of the preceding claims, characterized in that in the axis of rotation (19) of the footrest (18) and lifting device (21) a second gear (48) on the base plate (17) is provided, which via a timing chain (47 ) is connected to the first gear (46).

13. Device according to one of the preceding claims, characterized in that between the base plate (17) and the footrest (18) support roller bearings (51) are preferably distributed uniformly over the circumference.

14. Device according to one of the preceding claims, characterized in that a radial bearing is provided in the axis of rotation (19) between the base plate (17) and the footrest (18), which preferably receives the second gear (48).

1 5. Device according to one of the preceding claims, characterized in that a locking device (61) is provided on the footrest (18) or base plate (17), which secures the footrest (18) rotatably to the base plate (17).

16. The apparatus according to claim 1, characterized in that the frame (12) has four struts (14, 15) arranged at right angles to one another, the shorter struts (14) being arranged between the longer struts (15).

17. The apparatus according to claim 16, characterized in that rollers (13) are arranged at the free ends of the struts (15).

18. The apparatus according to claim 16, characterized in that at the free ends of the struts (15) suitable guide elements are arranged for rails.

19. Device according to one of the preceding claims, characterized in that the lifting device (21) has a column (25) with a first section (22) which is arranged on a footrest (18), with a second section (23) a cable pulling device (26) and a third section (24) with a deflection point (52).

20. The device according to Anspmch 19, characterized in that the cable pulling device (26) has a reduction gear and changes automatically into a locked position after actuation.

21. The apparatus according to Anspmch 19, characterized in that the height of the deflection point (52) for the footrest (18) is arranged in such a way that the cable pulling direction (26) extends diagonally upwards onto the deflection point (52) as seen by the person to be erected.

22. The apparatus according to claim 19, characterized in that the deflection point (52) of the lifting device (21) is offset at an upper end by a larger amount to the axis of rotation (19) than the lower end on the footrest (18) engaging end.

23. The device according to claim 19, characterized in that the deflection point (52) of the lifting device (21) is offset by an amount with respect to the axis of rotation (19), so that the person's center of gravity in or near the axis of rotation (19) when the person is upright. lies.

24. The device according to claim 1, characterized in that the lifting device (21) has a column (25) with a course which is approximated to a sinus hyperbolic function.

25. The device according to claim 1, characterized in that the frame (12), the base plate (17), the footrest (18) and lifting device (21) are arranged with releasable connections (16) to each other.

26. The apparatus according to claim 1, characterized in that the rotary drive (41) is formed by an electric motor.

27. The device according to Anspmch 19, characterized in that an auxiliary device (71) can be attached to the column (25), which can be positioned under the armpits of the person to be erected.

28. The device according to claim 27, characterized in that the auxiliary device (71) in the direction of the free end of the column (25) is pivotable.

29. The device according to claim 27 or 28, characterized in that the auxiliary device (71) has a hinge connection (72) which can be mounted by the column (25), struts (73), preferably two struts, between the hinge connection (72 ) and a support tube (74) are arranged.

30. The device according to Anspmch 29, characterized in that the support tube (74) has two free ends facing the user and spaced apart from one another.

31. The device according to claim 30, characterized in that the free ends (76) is flexibly adjustable to the body size of the person to be erected.

32. Device according to one of claims 29 to 31, characterized in that the support tube (74) has a flexible sheathing, preferably a foam sheathing.

33. Apparatus according to claim 29, characterized in that the distance between the articulated connection (72) and the support tube (74) is variable.