JPS59137054A - Device for transporting patients - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention enables persons with significant handicaps to move without the assistance of others within a normal residence designed for able-bodied persons. It becomes possible to rotate,
Concerning devices for transporting patients.

BACKGROUND OF THE INVENTION Various, somewhat improved types of motorized wheelchairs are known. These wheelchairs are necessarily cumbersome, heavy and expensive. The width of these wheelchairs makes it impossible to easily move them from one residence to another, and even when they are foldable, they still require a bulky and large-sized vehicle boot. If the wheelchair were equipped with a motor, it would require less force and immobility for a handicapped person to handle it, but it would still be heavy and expensive.

OBJECTS OF THE INVENTION The main object of the invention is to provide a compact size, which allows passage through doorways of normal width, and a low bulk, which allows transport in a car boot. It differs from traditional wheelchairs in that it is light in weight and requires only a small amount of energy and small movements of one upper limb to allow the disabled person to make all the movements he or she desires within the home. The object of the present invention is to provide a device for the transportation.

Another object of the invention is to provide a device of the above type, which is capable of moving about very short distances with considerable precision, and which is often required in crowded dwellings.

A further object of the invention is to provide a device of the type mentioned above, which produces a rehabilitation effect on the lower part of the lower limbs and is used by handicapped persons with the aid of the upper limbs.

The main object of the invention is to provide a frame with wheels, at least one wheel for driving and one wheel for guiding, the frame being suitable for use with a chair such as a chair with a seat for accommodating a disabled person. a support surface for supporting the legs of the seat, the frame having a steering member terminating at a height lower than the height of the seat and located on one side of the space occupied by the seat; serving to support the drive means and a mechanism for controlling one or more guiding wheels having guide members located on one side of the space reserved for the seat; do.

The driving means is arranged laterally of the device at a lower height than the seat of the chair and has two ends which are easily accessible from one side and the other side of the area reserved for the seat. Preferably it consists of a shaft. Each end of the shaft supports a removable control wheel, which in a variant can be replaced by a removable pawl lever, if desired. The mechanism for controlling the two guide wheels consists of a handlebar with a neutral position located at a height lower than the height of the seat and provided laterally of the device, the handlebar having two opposite ends thereof. Each one has an extension of the pup in it.

In one embodiment of the invention, the frame has two parallel vertical sides spaced laterally of the device, and the support surface is provided on the outside of these two sides. Each side consists of two spaced plates, a non-guiding wheel is provided between the two plates of each side, and at least one non-guiding wheel is a belt, more preferably a notched belt. The belt extends to a pulley fixed on a shaft on which at least one steering member is provided, the belt passing around the tread of the wheel.

More preferably, said frame comprises two footrests, said footrests being movable between a first position in which they are placed on the ground and a second position in which they are raised from the ground.

According to a preferred embodiment of the invention, the footrest has an extension, which allows the footrest to be supported by the frame and placed in an extended position in a first position of the footrest and in a second position of the footrest. The knot rest is connected to a horizontal bar that rotates between a retracted position and a retracted position. Furthermore, the driving wheels are rotationally fixed on a transverse shaft, on which shaft -h two cams with locking and uncoupling means are mounted. Each cam is properly aligned with an extension of the footrest such that each extension is spaced apart from the corresponding cam when the footrest is in the first position and when the cam is activated by the retaining means when the footrest is in the second position. When it comes into contact with the corresponding cam.

(Structure and operation of the invention) Embodiments of the present invention will be described below with reference to the drawings.

The device according to the invention essentially comprises a frame 1/-frame 1 mounted on a plurality of wheels. Said wheels preferably consist of two guiding wheels 2 and two non-guiding wheels 3.4, in this example the guiding wheels 2 being the rear wheels and the non-guiding wheels 3.4. One of the wheels, wheel 3, is a driving wheel. The frame l has a support surface 5 for supporting the four legs of a seat, such as a chair, shown in thin lines in FIG.

The support surface 5 is provided as close as possible to the ground on which the wheels 2-4 roll. The support surface 5 can also be dimensioned to accommodate a chair 6 of type I, but according to an aspect of the invention it is suitable for chairs 6, which are often used, and whose width exceeds the entrance of a normal indoor door. If the chair is of such a width that it can be passed through without difficulty, it is desirable to provide a support surface 5 capable of accommodating several types of chairs. The width of the frame l is slightly wider than the width of the chair 6. In order to improve stability, it is advantageous for some of the support surfaces 5, in this case the rear support surface, to be surrounded by sleeves 7 facing the sliding surfaces of the corresponding legs.

The chair 6 has a seat 8. From the ground towards −L, the frame l ends at a lower height than the seat 8 , so that the frame l is located below the seat 8 .

The frame l serves to support means for driving the drive wheels 3. This means has a shaft 9 which extends across the device a short distance below the seat 8 and is located close to the top of the device. On both sides of the place reserved for the seat 8, the shaft 9
provides a free end reserved for the steering member. The ends of each 0 are used to support the control wheel 10 and have a claw-like shape 8-1.
It is provided to support 1. One or the other of these steering members 1O111 is controlled as a function of the effectiveness of one or the other upper limb of the person sitting on the seat 8 and as a function of the desired movement of the person sitting on the seat 8 ( It can be used to move the device as a function of the type of rotation of the control wheel or the reciprocating movement of the pawl lever 11.

The two steering members are removable and interchangeable from one side of the device to the other.

The frame 1 also serves to support a mechanism for controlling the guide wheels 2. This mechanism is the handlebar 12
, the bar 12 having a neutral position for linear displacement of the device, in which the bar is arranged laterally of the device.

At both ends of the handlebar 12, extension parts 13 are provided, and the extension parts 13 can be retracted as shown on the left hand side of FIG. 3, and can be retracted as shown on the right hand side of the same figure. It can be stretched. Each extension 13 is connected to one or the other of the handicapped person 1: as a function of the mobility of the limb.
It forms an easily accessible steering member on one side or the other side of the space reserved for the seat 8 of the chair 6. Each extension 13 can be extended or retracted as required, either to pass through a doorway or to steer a steering wheel 10 or 1/bar 11.

The handlebar 12 and the guide wheel 2 are the control arm
15 are connected in a known manner with the aid of vertical rods 14 (FIG. 4). Control arm 1
5 rotates with the articulated parallelogram part 17 via an auxiliary arm IB, and the wheels 2 are connected to the parallelogram part 17 in the direction of their orientation.

The drive wheel 3 and the transverse shaft 9 are connected in a known manner with the aid of pulleys and belts.

It should be noted that in the preferred embodiment described herein, the chassis l has two spaced apart parallel sides 18.1.
It has 9. Each of these sides 18.18 includes two parallel plates 18A, 18B and 19A, 19 held apart by a spacer.
It is composed of B. The support surface 5 includes an outer plate 18A,
19A is slightly outside the width defined by the distance separating them.

On each side 18.13, plates 18A, 18B and IIIA
, 19B are spaced apart by a distance necessary to provide the non-guiding wheels 3 and 4 between these plates, respectively. These wheels 3.4 are fixed on a transverse shaft 20, the drive wheel 3 extending between the two plates 18A, 18B of the side part 18 as far as a pulley 22 fixed on the shaft 9. It is surrounded by a belt 21. Preferably, the wheel 3, the pulley 22 and the belt 21 are provided with a cutout, the belt 21 passing around the tread of the wheel 3, so that the belt 21 is disposed between the tread and the ground. , the device is clamped under the load of the chair and the person sitting on the chair. Pin-type drives are also useful, as they can substantially eliminate the effects of side-slip. Due to the notch in the belt 21, slight movements of the steering member 1O111 cause a corresponding displacement of the device. Therefore, the device can be operated with high precision.

The device described above can be used by a person sitting on the chair 6 with his or her lower legs hanging in front of the chair 6.

For handicapped people, in front of the place reserved for the seat 6, the side part 18.1 is provided by the frame l.
Foot rest supported between 8 (footrest is a platform) 23
It is often preferable to provide

Each footrest 23 slopes rearwardly at an angle of about 30'' to the ground and extends from the side 18 up to the movable crossbar 25.
．． Preferably, it has an extension 24 extending between 18. The crossbar 25 is arranged between the sides 18.18 in the forward position shown in FIG. Ensure a clearance between the This position is referred to as the second position, and the first position is such that the lower surface of the footrest 23 rests on the ground when the movable horizontal bar 25 is in the forward position. In this example, the crossbar 25 constitutes the lower side of the frame and the upper side 26 of the frame is supported and articulated between the two sides 18.18.
5 is rotatable. ” - on the side 26 there is a lever 2
7 is fixed, and 8-27 extends rearward and is easily accessible from behind and below the seat 8 of the chair 6. (Figure 2). The lever 27 moves along a vertical tube 28 which accommodates and guides the vertical rod 14 to which the handlebar 12 is fixed. Hook means (
(not shown) are provided for connecting the lever 27 to the tube 28 in alignment with the forward and retracted positions of the movable crossbar 25.

One end of the extension part 24 is connected to a movable horizontal bar 25. The lower end of the extension 24 is connected to the footrest 23, but in the vicinity of its lower end, between the sides 18.19, the extension 24 rests and can slide freely over it. A fixed support crossbar 28, which is movable, is provided. The effect of this fixed support bar 28 is that when the movable cross bar 25 is in the forward position, the extension 24 moves forward and pivots a little around the fixed support bar 29. The footrests 23 touch the ground at least by their ends. This allows people with handicaps who walk with their feet dragging or sliding on the ground to use the footrest without actually raising their feet and without the risk of imbalance from standing on one foot. You can step on 23. If this person changes direction in the standing position on the footrest 23 and then sits on the chair 6, another person operates the lever 27 and moves the lever 27 to the outside position of the footrest 23. It is connected to the vertical tube 28.

Below the extension 24, the shaft 20 supporting the wheel 3.4 crosses a position higher and rearward than the position of the fixed support bar 29. As a result, when the movable horizontal bar 25 is in the forward position, the extension part 24 comes forward and rotates forward around the fixed support bar 28, so that the extension part 24 moves forward from the shaft 6. 20.

The shaft 20 supports an axially sliding bushing 30 which itself supports two offset cams 31 corresponding to each of the extensions 24. These cams 31 are secured to or separated from the shaft 20 by locking means 32. A locking means 32 is provided between the shaft 20 1 and the bushing 30 , and is activated or inactive depending on the axial position of the bushing 30 . In Fig. 4, locking means 3
2 is inactive.

A reinforcing rib 33 in the form of an elongate is provided on the lower surface of each extension portion 24 . When the bushing 30 is displaced and the locking means 32 are activated, the corresponding surface of the cam 31 cooperates with the rib 33. When the movable crossbar 25 is in the forward position and the footrest 23 is in contact with the ground, the bushing 30 and the cam 31 are axially displaceable until they are located under the rib 33. Thus, when a person sits on the chair 6 and the movable horizontal bar 25 returns to its retracted position with the aid of the lever 27, the extension 24 rests on the cam 31-1- by means of their reinforcing ribs 33. be placed. As a result, the extension 24 extends above the fixed support rod 28 by -L.
rise During displacement of the device, the shaft 20 rotates the bushing 30 and the offset cam 31. The extension 24 and footrest 23 are then continuously and repeatedly raised and lowered by an amount determined by the profile of the cam 31. Therefore, the movable horizontal bar 25 is connected by a spindle to a small part side that is a part of the frame. cam 31
may be of a type with adjustable offset.

Although the device of the present invention imposes a small continuous M-down motion on one foot, it is useful in various situations for joint ankylosis or in the early stages of rehabilitation.

[Brief explanation of the drawing]

FIG. 1 is a front perspective view of the device according to the invention with the footrest in position for movement; FIG. 2 is a view similar to FIG. FIG. 3 is a perspective view of the device shown in FIG. 1 seen from the rear, and FIG. 4 is a view of the device seen from below. 1-m-frame, 2-m-guide wheels, 3, 4
---1 non-guide wheel, 5-m-support surface, 6--
Chair, 8-m-seat, 8-m-shaft, 1
0.11---A steering member. 12-11 to handle-113-m-extension, 18,1
ll-m-side part, 20-11 horizontal shaft, 21-11 belt, 22-11 pulley, 23-m-footless, 24-m-extension part, 25-m-horizontal bar, 3
1--offset cam; 32--locking means; Patent applicant: Bernard Louis Emile Deyu Fresne Patent application agent: Megumi Yamamoto - 9

Claims (8)

[Claims] (1) a frame having at least one drive wheel and two guide wheels, the frame including a support surface for supporting a conventional chair; and further means for driving the drive wheel and the guide. A device for transporting a patient, comprising a guide member acting on a drive wheel, wherein the means for driving the drive wheel comprises a shaft arranged transversely of the device in the upper part of the device. Apparatus, characterized in that the shaft has at least one easily accessible end on one side of the frame supporting a removable and replaceable steering member. (2) Two opposing ends of the shaft are easily accessible on one side and the other side of the frame, respectively, and the two opposing ends support any one of the steering members. Equipment described in Section. 3. A device according to claim 1 or 2, wherein the removable and replaceable steering member comprises at least one steering wheel and one pawl-like lever. (4) said guide member comprises a handlebar located in two parts of said device, said handlebar having a neutral position in which it is disposed laterally of said device, and said handlebar having two opposite ends thereof; 2. A device as claimed in claim 1, having a pup extension in each of the pupae. (5) the shaft supports a pulley rotationally fixed and surrounded by a belt, the belt passing around the tread of the drive wheel, such that the belt is between the drive wheel and the ground; 2. A device according to claim 1, wherein the device is clamped by a holder. (6) said frame has two spaced apart vertical sides, said pulley and said belt are protected by a casing, and at least one said side has two parallel spaced apart plates; 2. Apparatus as claimed in claim 1, in which the belt and the pulley including the drive wheel and which are rotationally fixed on the shaft are housed between the two side plates. (7) The drive wheel is a front wheel and the shaft."
- rotationally fixed at - and further comprising two footrests, a first position in which they are placed on the ground and a second position in which they are raised to one side of the ground. said shaft, on which at least one driving wheel is fixed, comprises two cams having engaging and disengaging means, each footrest being adapted to cooperate with a corresponding cam; 2. The footrest of claim 1, further comprising extensions, each extension being spaced apart from a cam when the footrest is in a first position and abutting a cam when the footrest is in a second position. equipment. (8) the shaft supports an axially slidable bushing on which the two cams are rotationally fixed, the bushing being in a rest position where it disengages from the shaft or when it is locked; 8. A device as claimed in claim 7, adapted to be brought into an operative position into engagement for rotation with said shaft by means. (8) Each footrest extension has a lower surface provided with an elongated reinforcing rib, said rib extending from the corresponding cam when said bushing is in the operating position and said footrest is in a second position. 9. A device according to claim 8, which is placed on a surface.