ES1224199U - Multifunctional wheelchair (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Multifunctional wheelchair (1) consisting of a wheelchair that changes its configuration, at the user's discretion, to adapt to its requirements, characterized by having a seat (2), with seat extension (2.1) and central window (2.2), a backrest (3) with extensible backrest (3.1) and backup support (3.2), an intermediate plate (4) with guide crown (4.1), a support plate (5) with lever/trigger (17)), two longitudinal stringers (6), four adjustable swivels (7), a transversal stringer (8), two columns (9), an endless screw (10), a thrust cylinder (4.2) and a motor (11) being possible the generation of turns or abatements on axes A (12), B (13) and C (14). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Multifunctional wheelchair.

Technical object of the invention

The present invention relates to a wheelchair that changes its configuration at the user's will to adapt to the needs that arise in his daily life. In initial form of chair with reclining seat and backrest, it allows to extract a headboard and a footboard that, once arranged all of them on the same plane, made a ninety degree turn on a vertical axis and placed at the appropriate height, become a kind of stretcher with the possibility of bringing it closer to a bed so that the user can slide towards it in order to achieve greater comfort or for night rest. Conceived especially for people with little mobility, is ready to place a wedge or pot under the seat.

Sector of the technique to which the invention relates

The invention that is presented affects the Current Needs Sector of Life, section on Health, Protection, Amusements in the paragraph of Medical and Veterinary Sciences, Hygiene of the International Patent Classification. From an industrial point of view, it affects the manufacture of wheelchairs of all kinds, especially those used by disabled people.

BACKGROUND OF THE INVENTION

Several registered inventions of wheelchairs are known because, in these times, society is paying special attention to people with some locomotive disability which is combined in parallel with regulations that promote the elimination of urban barriers in cities.

There are solutions of all kinds that facilitate the most common problems for this type of person. Many refer to folding chairs, others are especially suitable for hospitals, others serve to facilitate the rise of steps, others to facilitate the passage from the sitting position to the upright and the most modern that are self-propelled.

To give an idea of the registered inventions, some are mentioned, by way of example:

- ES-1008139 U Folding handicapped chair

- ES-2037796 T3 Folding wheelchair

- ES-1035667 U Wheelchair

- ES-2012673 A6 Wheelchair

- ES-2265247 To the convertible bed in a wheelchair

- ES-2030059 T3 Combination stretcher and chair

- ES-2369454 To the lift chair for handling disabled people

- ES-2284913 T3 Wheelchair that gets up

The first four inventions describe folding type solutions. The fifth cited describes a structure that can be transformed from the option bed or stretcher to chair. The sixth has no relationship because it is a stretcher with transformable elements that facilitate access to it.

The seventh allows the person occupying the chair to stand up and finally the one mentioned at the end has elements that modify the height of the seat.

However, the inventor does not know any solution that is similar to the one proposed in this document although there are aspects, in any of those cited, that have similarities or that approximate in certain details, especially the ES-2265247 A1, as we will see It has a feature that is reminiscent of the solution described here.

Summary description of the invention

The present invention relates to a wheelchair, transformable and folding whose configuration can be changed at will, according to the needs required by the user. It is a chair that must be handled by an assistant person who occupies it with a structure that includes the following components,

- seat

- backup

- intermediate plate

- general support with wheels

- extendable complement on the seat

- extendable complement in the backrest

- support complement for the backup

The seat, of square or rectangular shape, has a centered window in whose vertical, on the ground, a wedge or potty is placed.

In the lower part, a circular crown acting as a turning guide on the intermediate plate is joined.

In its lateral edges it has supports that serve to support the removable complement of the seat.

The backrest, also of square or rectangular shape, is foldable on the seat and can take any position in an arc of about 180 sexagesimal degrees. Inside, the removable backrest attachment is housed.

The intermediate plate has a shape similar to that of the seat with a window of circular shape, coinciding with that of the seat, where the circular guidewire existing in it is housed. The general support with wheels constitutes the supporting structure of the set.

It is formed by two longitudinal stringers joined by a transversal forming a set in "U." The longitudinal stringers are equipped with adjustable wheels that give manual mobility to the whole of the chair.The transverse spar has telescopic columns on both sides that allow vertical movements while being topped by a support plate that also has a shape reminiscent of the "U" of the stringers located near the ground. This plate is the one that defines the seat height of the chair that can vary thanks to the action of a motor that drives a vertical auger located between the two columns.

On the support plate are located the seat, the backrest and all the accessories mentioned above, which will be described later.

With these components, the invention can go from having the shape and functions of a chair to the shape and functions of a stretcher with several properties that make it very comfortable for the user to pass from the lying position on the stretcher to the position of lying in a bed of the usual.

That is to say, the invention is conceived thinking of users who have some type of locomotive disability, usually requiring the assistance of a caregiver who drives the chair, even though the inventor does not rule out a global motorization that allows the user's total autonomy of movements.

BRIEF DESCRIPTION OF THE DRAWINGS

Sixteen figures are included with the following meaning:

Figure 1

It shows us a schematic view, in perspective, of the chair of the invention, in which the following elements are distinguished:

1. - Chair

2. - Seat

2.1. - Extendable seat

2.2. - Window

3. - Backup

3.1. - Extensible backup

3.2. - Backup support

4. - Intermediate plate

4.1. - Guide crown

4.2. - Thrust cylinder

5. - Support plate

6. - Longitudinal stringer

7. - Wheel

8. - Crossbar

9. - Column

10. - Endless thyme

11. - Engine

12. - Axis A

13. - Axis B

14. - C axis

Figure 2

It represents the chair in top schematic view with the backrest folded down completely, having rotated on the "A" axis, so that it remains in the same plane as the seat.The seat and back extensions are collected.

15. - Ring

16. - Band

Figure 3

It represents the same top view of the previous figure with the difference of having the seat and back extensions removed.

Figure 4

Represents the chair in rear view with the back folded. In addition to elements already indicated, the following is indicated:

17. - Lever / trigger

Figure 5

It represents the chair in rear view with the raised backrest and the retractable backrest retracted. Supportive support is also shown.

Figures 6, 7, 8, 9, 10 and 11

They represent a series of positions in which the chair can be configured

18. - angle to decline

In (Fig.6) the position in which the seat, backrest, intermediate plate and support plate are in mutual contact is shown. The seat extensible and the extendable backrest are picked up.

In (Fig.7) the set of intermediate plate, seat, backrest and corresponding extenders have turned an angle "a" on the axis B by action of the thrust cylinder.

In (Fig.8) we want to suggest that the backrest, with its extensible, can take any position in a sexagesimal 180-degree arc by turning on the axis A.

The (Fig.9) shows the fully open backrest position with its extensible pickup.

The (Fig.10) shows an identical position of the backrest with its extendable extracted.

The (Fig. 11) shows the backrest and its extensible in the position of the previous figure forming a plane with the seat and with its extensible which, now, has been extracted.

Figure 12

Here the chair of the invention is represented, in line of points and top view, in the position of the previous figure that we can call "stretcher position", that is, seat, backrest and extendable extracted in the same plane. Note that the longitudinal beams are aligned with the "stretcher" in the same relative position as they have in the normal position of the "chair".

In line of continuous line the stretcher is represented after having experienced a 90-degree sexagesimal rotation on the C axis.

Figures 13 and 14

The (Fig. 13) repeats the position rotated in continuous line of the position of the (Fig. 12) and the (Fig. 14) is the corresponding view in elevation.

Figure 15

It represents the plan view of a bed.

19.- Bed

Figure 16

It represents the "stretcher" position inclined to favor the movement of the user from the stretcher to the bed.

Detailed explanation of an embodiment eg the invention

Multifunctional wheelchair (1) (Figs 1 to 16) consisting of a wheelchair that changes its configuration at the user's will to adapt to the needs that arise in their daily lives. In a preferred embodiment by its inventor, it has, as main elements, a seat (2), with seat extensible (2.1) and central window (2.2), a backrest (3) with extensible backrest (3.1) and support for backrest (3.2), an intermediate plate (4) with guide crown (4.1), a support plate (5), two longitudinal beams (6), four wheels (7), a transverse beam (8), two columns (9) ), an endless screw (10), a thrust cylinder (4.2) and a motor (11).

Part of these elements constitute the supporting structure of the chair (1) which, in profile view, has the form of a The lower part of this structure is formed by two longitudinal beams (6) joined, at one end, by the crossbar (8) showing, in superior vision, as a "U" that can move on the ground thanks to the existence of wheels (7), adjustable. In the joining vertices of the longitudinal beams (6) with the transverse (8) are raised columns (9), telescopic, which are joined in their upper part with a support plate (5) that is the support of the basic elements of the chair (1) as they are, an intermediate plate (4), the seat (2) and the backrest (3).

Between the columns (9), supported on the crossbar (8) is a screw (10) which, driven by the motor (11), allows the height of the seat (2) to be modified with respect to the floor. On the same transversal beam (8), slightly forward, the thrust cylinder (4.2) is placed whose utility is described below.

Above the support plate (5), also forming part of the general support structure, is the intermediate plate (4) provided with a circular hole centered and articulated on its front edge so that it can rotate on the B-axis (13) with hinges attached to the support plate (5) an angle of about 15 degrees. In the opposite part to said front edge contact with the upper part of the thrust cylinder (4.2) is established in such a way that, when the energy stored in said cylinder is released, acting on the lever / trigger (17) (Fig. 4), the lifting of the intermediate plate (4) occurs when the latter rotates on the B axis (13).

Following upwards, there is the seat (2), strictly speaking, of the chair (1) with a shape that can be rectangular or square, equipped with a window (2.2) designed for laying on the floor, when required , from a wedge or potty. On the underside of the seat (2), integral with it, is a guide ring (4.1) that fits, with a slight play, in the circular hole, cited above, existing in the intermediate plate (4). In this way, the virtual rotation axis (C) (14) is generated, which allows a rotation of the seat (2) on the intermediate plate (4) in the amount of any value of the possible 360 degrees.

On the seat (2), duly hinged, the backrest (3) is fitted whose shape is similar to that of the seat, although it is windowless. The backrest (3) is foldable on the seat (2) with 180-degree sexagesimal turns on the axis A (12) and can be locked in any position and secured by the back support (3.2).

Complementing the fundamental of the chair (1), that is, its seat (2) and backrest (3), there is an extendable seat (2.1) and a backrest extendable (3.1), which are removed by pulling them, then see which are equipped with a framework of bands (16) attached to their frames by means of rings (15) or any other procedure. When both extensibles are extracted, the bands (16) remain tight and when they are collected they remain with folds on themselves.

With this arrangement of all the components of the chair (1), if we assume that the backrest (3) is completely folded down with its extensible (3.1) removed and the seat, in itself, horizontal with its seat extensible (2.1) also extracted, as can be seen in (Fig.3), it turns out that the original chair (1), takes the form of a "stretcher" in which the seat extendable (2.1) makes foot and the extensible backrest ( 3.1) acts as headboard.

Under these conditions, it is possible to produce turns of the chair (1), converted into a "stretcher", one of whose turns, of 90 degrees, is outlined in (Fig.12) in which the longitudinal axis of the "stretcher" it is perpendicular to the longitudinal beams (6) which is also shown in (Fig.13) and in the profile view (Fig. 14) where it is implied that the height of the "stretcher" can be adjusted to that of a bed (19) activating the motor (11) which, as we have indicated before, moves the auger (10) by raising or lowering the support plate (5) and, of course, all the elements on top.

Adjusted the height, as shown in (Fig. 16), when the lever / trigger (17) is pulled, the thrust cylinder (4.2) that rotates the "stretcher" assembly on the B axis ( 13) producing a slope angle (18) that favors the passage of the user towards the bed (19). In the (Figs. 6 to 12) the different positions that the chair (1) of the invention can have are schematized, which, moreover, although it has not been represented, has the property of being foldable on itself reaching the shape of a parallelepiped of rectangular base.

Although the chair of the invention only has a motor that modifies the height of the seat, the inventor does not rule out a wider motorization to increase the autonomy because, under the conditions described, the user needs the help of another person to perform the different movements possible.

It is not considered necessary to broaden the content of this description so that a person skilled in the art can understand the scope and advantages derived from the invention, as well as develop and carry out the object of the invention. However, it should be understood that the invention has been described according to a preferred embodiment thereof, so that it may be susceptible to modifications without affecting or involving any alteration of the basis of said invention. That is, the terms in which this preferred description of the invention has been exposed, should always be taken in a broad and non-limiting manner.

Claims (4)

1. Multifunctional wheelchair (1) consisting of a wheelchair that changes its configuration, at the user's discretion, to adapt to its requirements, characterized by having a seat (2), with seat extension (2.1) and central window (2.2), a backrest (3) with extensible backrest (3.1) and backup support (3.2), an intermediate plate (4) with guide crown (4.1), a support plate (5) with lever / trigger (17) ), two longitudinal stringers (6), four steerable wheels (7), a crossbar (8), two columns (9), an endless screw (10), a thrust cylinder (4.2) and a motor (11) being possible the generation of turns or abatements on axes A (12), B (13) and C (14). 2. Multifunctional wheelchair, according to the first claim, characterized in that the axis A (12) allows turns, of up to 180 degrees, of the backrest (3) on the seat (2), the B axis (13) allows turns, of about 15 degrees, of the intermediate plate (4) on the support plate (5) and the C axis (14) allows turns, of 360 degrees, of the seat (2), with all its associated elements, on the intermediate plate (4) . 3. Multifunctional wheelchair, according to the first claim, characterized in that the seat extensible (2.1) and the backrest extensible (3.1) are equipped with bands (16) and rings (15) to form a footboard and a headboard respectively. 4. Multifunctional wheelchair, according to the first claim, characterized in that it is foldable.