ES2338513B2 - TILT CHAIR. - Google Patents

Abstract

Tilt chair

The tilting chair is an aid for people with reduced mobility; It allows us to sit softly, sit with your legs raised and get up with a slight effort

The tilting chair forms a structure unique, without internal moving elements. It incorporates a footrest, 2 support profiles curved in the center and straight at the ends and 2 front handles.

The user goes up to the footrest (which is supported by the floor) and then fits into the seat. The weight of body makes the chair swing to the sitting position. To the time the torso descends the legs rise, acting as counterweight.

The user is seated at a higher height, with It maintains its potential energy.

To get up, just grab the front handles and lean the body forward; the chair will swing to the starting position.

Description

Tilt chair

Technical sector

The present invention is framed within the means to help you sit or get up while having footrest, the group that corresponds to the classification International is A61G 5/14.

State of the art

There is currently a group of appliances that help you sit and get up without raising your legs; They are the cushions that are placed on top of the chair. Go equipped with springs that store the potential energy of the user when sitting and they return it when they get up.

These devices pose several drawbacks, such as the loss of spring elasticity with continued use and the need to adjust its strength according to the weight of each user. In addition, the majority of potential users are elderly advanced and short, and for them 2 pitfalls arise important; The first is that by placing one of these elements the seat height is increased above the chair, so they will sit with their feet dangling; the second pitfall is that they need a protrusion that stops against the leading edge of the chair to prevent it from sliding backwards, this highlight forces sit more apart from the backrest, which does not hold the area lumbar.

If we also want to sit with our legs raised we must go to the lift chairs that have mechanically extendable footrest.

These armchairs pose another series of drawbacks, since they house complex leverage systems and independent motors for both functions. All this implies the need for an electrical supply, the operation of a keypad, a high weight and an increase in cost.

Detailed description of the invention

The tilting chair that we present allows us sit gently, sit with your legs raised (avoiding leg swelling) and getting up with a slight effort.

All with an extremely simple design, A unique structure without internal moving elements.

The basis of the present invention is to execute from Simultaneously the action of sitting with that of raising the legs; With the tilting chair, we managed to move to a position of sitting with your torso higher than in a conventional chair (about 10 cm more) and the legs raised to medium height.

In this position the center of gravity of the user remains at almost the same height and therefore is the same user who conserves his potential energy; is removed from this it forms the need for any mechanical element that stores said energy or that the contribution from the outside.

When sitting, the weight of our body drives legs up until you sit comfortably in relax position; when we get up, the legs act as a counterweight minimizing effort.

Figure 1 shows the elements that They differentiate the tilting chair from the conventional one.

First the footrest (1) and next to it the heel stop (2).

The 2 support profiles (3) remind those of a rocking chair, but its form and function are completely different; since they do not serve to rock but to sit and get up; the profiles are straight at both ends to provide some bases stable both when climbing into the chair and when sitting; the Central curve maintains the tangency between the straight ends. For minimizing impacts on the ground at the end of each tour is enough with putting some strips of adhesive weatherstrip at these ends.

The 2 front handles (4) are very helpful To sit and get up.

Finally the 2 armrests (5) extend forward to join the front handles.

In the following figures we see the sequence of use of the tilting chair.

Figure 2 shows the tilting chair empty and in side view; it rests on the ground on a point of the curved area

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In figure 3 the user pushes down a front handle (4) until the footrest (1) rests on the ground; at the same time the seat increases its inclination.

The user goes up to the footrest (figure 4) enough with putting one foot on top so that the chair is immobilized; So can move safely to stand with your back to the seat and with the heels in contact with the stop (2).

In figure 5 the user grabs the armrests at body height; the chair remains motionless while the center of gravity of the user remains on the part straight support profile (3).

In figure 6 the user supports the buttocks in the seat and straighten the torso so that the back also does contact with the backrest; in this way the center of gravity is move over the curved area of the support profile and the chair begins to swing back.

Figure 7 shows the medium situation road; the torso descends slightly while the legs (which act as a counterweight) they increase a distance significantly higher; on the other hand, as the center of gravity is it moves backwards, so does the foothold on the ground, preventing the moment from increasing. For these 2 reasons the decline is Produces smoothly.

In figure 8 the chair has reached the end of route, the user is sitting stably since the center gravity is again placed on a straight area of the profile of support for. The seat height is greater than in a conventional chair so that the user conserves his potential energy. The feet are raised to medium height firmly supported on the footrest and the heel stop.

To get up from the chair (figure 9) the user must grab the front handles (4) and tilt the torso forward; so that the center of gravity is achieved place on the curve of the support profiles and the chair begins to swing forward.

Figure 10 shows the position in the middle of the movement; the legs descend transferring their energy potential to the torso; the foothold now pursues forward to the center of gravity, thus slowing the movement.

In figure 11 the end of path, the center of gravity is placed on the feet and the seat has raised the buttocks.

With the help of the front handles, the user finishes standing up (figure 12).

Claims (2)

1. Swing chair with a unique structure, without moving elements, for people with reduced mobility, which allows you to remain seated with your legs elevated, characterized by incorporating a platform (1) that resting directly on the floor allows the user to stand on she before sitting down; and being attached to the structure of the chair by means of 2 curved support rails (3) that allow an angle of rotation of the chair greater than 40 °, it makes it possible for the legs to act as a counterweight when sitting and standing up; said platform (1) acting as a footrest while keeping the legs elevated at mid-height when the user is sitting.

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2. Tilt chair according to the first claim characterized in that it incorporates 2 front posts (4) fixed to the front ends of the support rails (3) and to the armrests (5) that extend, serving as a lever to push the chair into position Starting, with the platform resting on the ground, allowing the user to grab securely when sitting and standing up, also acting as a counterweight and supporting the user to finish joining.