ES1092607U - Wheelchair with folding seat and backrest (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Wheelchair with displaceable seat comprising a rigid frame (2) supported on two front wheels (4) and two rear wheels (3) with the front wheels (4) of smaller diameter than the rear wheels (3) provided in the inner part of footrest (9) with armrests (6) at half height of the upper part of the frame (2) with the possibility of collapsing and with some push sleeves (1) in the upper part characterized by the seat-backrest forming a only element can also be separated constituted by a plurality of pieces (8) each of said pieces (8) being attached to the sides of the frame (2) grooved by the internal part so that when operating the buttons (7) of collection and unfolded, the pieces (8) are folded from the top to the bottom, being collected in the inner part near the footrests (9) and leaving a large free space under the user that allows him to remain without effort directly sitting on the surface under the chair. (Machine-translation by Google Translate, not legally binding)

Description

Wheelchair with folding seat.

Object of the invention

The present invention deals with a wheelchair that allows the User to position themselves on a surface directly from the chair without making great effort and without the help of third parties, it is a chair whose seat and backrest joined or separated, composed of a plurality of pieces that slide or are collected towards the user's feet, folding so that the user is directly on the desired surface.

Background of the invention

The wheelchair are chairs adapted to allow the movement of people who cannot stand, whether due to temporary or permanent illness with problems of locomotion or reduced mobility, or even for people with lower limb pain.

There are electric and manual wheelchairs and are generally foldable to save space and transport them more comfortably.

Over time this type of chairs has undergone a great evolution providing more autonomy to the user, as well as greater comfort and equality before others, the object of any type of wheelchair is to allow the user the maximum functionality, comfort, mobility and achieve greater autonomy

So the chair must be designed to fit people and their needs, there are different chairs designed for specific needs, in this sense, for example, wheelchairs that allow the user to rise are known, for example the ES2260997 patent that it is a wheelchair with a folding seat to raise the user, allowing him to gain effective height, thanks to a gas lift cylinder system similar to that mounted on any office chair with the activation of two lever levers located under the armrests of said chair, the seat pivots on an axis located in its front area thus raising its rear part formed by a curved part where the user will be seated.

There are other types of wheelchairs that can be used as a toilet chair directly are aluminum chairs with folding armrests that allow lateral transfer and with removable and adjustable footrests in height, the seat is soft and has a horseshoe shape so it can be used both as a shower chair or as a toilet by placing it on it.

However, these even providing a greater degree of autonomy to the user, do not allow its direct positioning on a surface such as a chair, a bench, a side of a bed, an armchair, a toilet etc., without extra efforts, on the other hand and In most cases, third-party help is needed.

Description of the invention

The proposed invention fully and satisfactorily solves the above-mentioned problem, it is a wheelchair with a seat and backrest with a collection system for the collection and stretching of the seat and backrest.

The chair has a chassis-like frame on which the rest of the components are placed, thus it has two rear and two front wheels, two side armrests and two footrests. In the upper part are the push sleeves intended for manual driving of the chair by a third party.

The seat and back of the chair are united being a single element comprising a plurality of rectangular upholstered pieces, the seat and the backrest can also be separated, to create comfort, and joined to the frame of the chair by its sides through a mechanism for the deployment and folding of the seat and backrest that are attached to a turning system connected to the control buttons for collecting and stretching the seat and backrest arranged on one of the armrests of the chair so that it User is the one who picks up and stretches the seat and backrest.

In the lower part of the chair it has a turning button powered by a battery for the movement of the pieces.

Under the seat and backrest there is a lot of free space. In this way, when the user wishes to go to the bathroom, place the chair on the toilet, press the control button and the backrest seat begins its movement

top down, being collected in the lower part of the chair so that the user is directly sitting on the toilet without any effort and without the help of anyone.

As an aid to carry out this action, folding side plates are available so that the user of the chair rests on them while the seat is folding or unfolding.

To rest on the surface, once the seat and backrest have been collected, we move the chair manually or through the forward control buttons at the necessary moment, the opposite would be done, we would bring the chair to the front, we would activate the seat movement button and supported on the armrests and the plates the seat would slide under the user so that it sits on the effortlessly.

Description of the drawings

To complete the description that is being made and in order to help an understanding of the characteristics of the invention according to a preferred example of the practical implementation thereof, an integral part of said description is accompanied by a set of drawings where, for illustrative purposes and not limiting the following has been represented.

Figure (1) shows a view of the chair of the invention where the seat-back is extended in its position.

Figure (2) shows a view of the chair of the invention without the representation of the seat-backrest where the large free space remaining under the chair is observed, once said seat-backrest is mined.

Figure (3) shows a view of the frame or chassis of the chair of the invention.

Figure (4) shows a view of the chair of the invention where the fully folded seat-back is observed.

Figure (5) shows a schematic view of the connection of the seat-backrest to the grooved internal part of the frame where it travels.

Preferred Embodiment of the Invention

The proposed invention concerns a wheelchair with a movable seat that comprises a rigid frame (2) that is the base on which the rest of the elements are arranged, this frame (2) has in its upper part some pushing sleeves ( 1) arranged so that a third party can grab the chair in the lower part are the footrests (9), in the central part at the appropriate height the armrests (6) that could be of the type of those who fold down, the set are supported on the two front wheels (4) of smaller diameter than the rear (3).

The part on which the user rests would be the backrest seat arranged on the sides of the frame along its length, this chair is characterized in that the seat and the backrest are a single element not being differentiated from each other, thus this seat - backrest can also be separated and constituted by a plurality of pieces (8) each of said pieces (8) being joined by the sides of the frame (2) grooved by the internal part so that when the buttons (7) are activated by The pieces (8) have been collected and unfolded from the top to the bottom, being collected in the inner part close to the footrests (9) leaving a large free space under the user, which allows you to effortlessly sit directly on the surface underneath the chair and in the same way for the deployment of the seat the chair is placed under the surface in which the user is located and the control buttons (7) are moved the user sitting on the chair effortlessly.

As a complement to help the user of the chair and in order that their effort is as little as possible during the movement of the seat-backrest, folding strips (11) are used arranged on the sides of the frame (2) that allow support of the user on them until they finish the operation.

The pieces (8) are a seat-back that are attached to the sides of the frame (2) through a turning mechanism (10) that allow the movement of collection and stretching of the seat-back.

The chair also has a motor (5) located in the lower part of the chair that gives the chair its own autonomy both for the movement of the seat-backrest and for printing movement to the chair itself and moving it.

Claims (4)

one.

 Wheelchair with movable seat comprising a rigid frame (2) supported on two front wheels (4) and two rear wheels (3) with the front wheels (4) being smaller in diameter than the rear wheels (3) provided on the inside of footrests (9) with armrests (6) at half height of the upper part of the frame (2) with the possibility of folding down and with push sleeves (1) in the upper part characterized in that the seat-backrest forms a single element they can also be separated constituted by a plurality of pieces (8) each of said pieces (8) being attached to the sides of the frame (2) grooved by the internal part so that when the collection and unfolding buttons (7) are operated , the pieces (8) are folded from the top to the bottom being collected in the inner part near the footrests (9) and leaving a large free space under the user that allows you to be effortlessly directly sitting on re the surface under the chair.

2.

 Wheelchair with folding seat according to claim 1 characterized in that the pieces (8) are attached to the sides of the frame (2) through a rotation rotation system that allow the movement of collection and stretching of the seat-backrest.

3.

 A wheelchair with a folding seat according to claim 1, because the sides of the frame (2) are provided with folding plates (11) so that the user is supported on said plates (11) when the seat-backrest is moved.

Four.

 Wheelchair with folding seat according to previous claims characterized in that it has an engine

(5) located in the lower part of the chair (9) that gives the chair its own autonomy both for folding and unfolding the seat-back and for printing movement to the chair itself. The material for the manufacture of this chair are all the materials that are suitable for the manufacture of it.