ES1058657U - Adjustable headrest. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Adjustable head, of the type intended to be coupled to wheelchairs, characterized by being constituted by an essentially tubular structure (1) preferably arranged in the form of a cross comprising a transverse section constituted by separate telescopic arms (2) and divergent whose inner and extendable part is bent forward, being provided at their ends with respective fixing supports (3) suitable for fixing by conventional fastening systems, such as screw (4) and nut (5), to the tubular structure of the upper part of a wheelchair (s), the intersection with the vertical arm (6) comprising a joining element (7), of prismatic morphology and hollow interior, provided with separate screws (8) to which they are fastened and articulate the telescopic arms (2), it extends downwards in a solid tube (9) through which runs the vertical arm (6) at the upper end of which there is another tubular segment (10) solidari or hollow disposed perpendicular to that, through which runs the depth regulating tube (11) which is attached to the headrest (12) by means of a tightening nut (13) to a ball joint (14) located at its end. (Machine-translation by Google Translate, not legally binding)

Description

Adjustable head

Object of the invention

This Utility Model refers to a adjustable head primarily intended for coupling in wheelchairs that contributes to the function to which it is intended, several advantages that will be reported later, apart from others inherent in its organization and constitution.

Specifically, the new head is innovative thanks to its ease of assembly to the wheelchair, its compatibility with all brands and models of these, ensuring comfortable support for the user and for whose regulation does not require the help of additional tools, allowing also the folding of the chair without the need to disassemble it.

Background of the invention

In the extensive market of devices and instruments dedicated to people with mobility problems or disabilities, the wheelchair is one of the most extended. Such chairs, however, lack in most the cases of adequate support for support and / or support of the user head of the same, which should the need arise be added later independently, as already He said, it is not an integral part of the chair.

Currently and as a reference to the state of the technique, it should be mentioned that said backrest or head, usually be constituted by elements of complicated manipulation that in most cases they require the help of tools additional both for placement and removal, which should be done every time you want to fold and unfold the chair, as for the regulation of its position, being in the majority of the cases, said regulation of a limited nature.

Explanation of the invention.

With the present invention a head has been devised adjustable for use as a complement to the chairs wheels and the like, whose fundamental objectives are to correct the inconveniences mentioned above, guaranteeing support comfortable for the user thanks to the possibility of regulation very wide range without the use of any tools, also offering a hygienic support through the protective cover Removable and washable which is advantageously provided.

One of its main characteristics lies in its efficient folding method, which allows to unfold and fold the wheelchair without disassembling the head and without using tools, simply by a simple movement manual.

It is therefore the adjustable head object of the present invention an effective and comfortable product for the user for the versatility of its operation. This is so because it is adjustable in height, with respect to the horizontal plane, in depth with respect to the vertical plane and consequently with respect to the backrest of the chair, and it is also adjustable in the angle of inclination thanks to the kneecap mechanism that is provided, which allows a wide degree of movement of the headrest itself to adapt to any position.

More specifically, the adjustable head of the invention is constituted from an essentially structure tubular arranged in the form of a cross, from which the transverse section it is constituted by two telescopic articulated arms and divergent whose inner and extensible part is presented angled forward, being provided at their ends with two supports of fixation equally articulated. These supports are presented gaps on the bottom, being able to be fixed by conventional fixing systems, such as screw and nut, to the tubular structure of the upper part of the chair wheels.

The articulated union of the mentioned arms telescopic head to the intersection with the vertical arm It comprises an element of union, prismatic and internal morphology hollow, equipped with two screws to which they are held acting as axes, and that extends downwards in a supportive tube through from which the vertical arm that regulates the head height at the top end of which there is another segment tubular integral and hollow arranged perpendicular to that, to through which the depth regulating tube that runs joins the headrest by means of a tightening nut allowing the angle of rotation variation of this thanks to the existence of a kneecap at its end.

The regulation of the mentioned positions, both the headrest and the rest of the elements that adjust the depth and height of the adjustable head, it perform manually either with the element's own movement to move as in the case of the headrest, either by manually adjusting two threaded knobs for fixing that has for such use.

Brief description of the drawings

For a better interpretation of the invention, accompanies the present specification of some drawings in which a form of non-limiting example is illustrated embodiment of the adjustable head object of the invention.

In these drawings:

Figure 1. Shows an awakening of the elements which make up the adjustable head object of the invention.

Figure 2. Shows a perspective view of the invention with indication of the different movements and regulation possibilities.

Figure 3. Shows a perspective view Adjustable head side placed on the wheelchair.

Figures 4 to 6 respectively show paths rear views of the different folding phases and Adjustable head positioning on the wheelchair.

Description of an embodiment of the invention

In view of the commented figures and agree with the numbering adopted, you can see in them a exemplary embodiment of the invention comprising the parts indicated below.

The new adjustable head consists of an essentially tubular structure (1) arranged in the form of a cross comprising a cross section formed by two arms telescopic (2) divergent whose inner and extensible part is it presents layered forward, being provided at its ends of two fixing brackets (3) suitable for fixing by conventional fixing systems, such that screw (4) and nut (5) to the tubular structure of the upper part of the chair wheels (s).

The intersection with the vertical arm (6) the it constitutes a union element (7), of hollow prismatic morphology inside, equipped with two screws (8) to which they are attached and where the aforementioned arms are articulated telescopic (2). Said connecting element (7) extends towards below in a hollow solidary tube (9) through which the vertical arm (6) and whose upper end is another tubular segment (10) integral and hollow arranged perpendicularly to that, through which the regulating tube of depth (11) that is attached to the headrest (12) by means of a tightening nut (13) to a kneecap (14) located at its end.

It should be noted that the union of the supports of fixing (3) with the telescopic arms (2) is articulated and its extension will be conditioned by the dimensions of the chair at It will adapt. On the other hand, the union of said arms Extensible (2) to the connecting element (7) is also made of articulated shape acting the axle screws (8) in said joint.

It is a fundamental characteristic of the head Adjustable of the invention adjusting the arm adjustment vertical (6) that is done manually by tightening the fixing knob (15) located in the tubular segment (7), the adjustment of the depth regulating tube (11) which is also performed manually by tightening the fixing knob (16) located in the tubular segment (10), as well as the regulation of headrest (12) that allows a variation of very wide angle both lateral and vertical thanks to the kneecap (14) and that also graduates manually.

Another feature that advantageously differentiates to the adjustable head of the invention, consists in its ability to folded next to the chair without being disassembled. This is achieved by articulating the screws (8) of the telescopic arms (2) with the connecting element (7) than with a downward movement of the vertical arm (6) allow the folding of the tubular structure (1) while the chair is folded (s) Similarly, when deploying the chair (s) a movement towards above the vertical arm (6) allows its opening.

Finally a removable cover by systems conventional opening such as a zipper covers the headrest (12) in order to grant the head of greater hygiene by allowing washing.

Describe sufficiently the nature of the The present invention, as well as how to implement it, is it states that, within its essentiality, it may be taken to the practice in other embodiments that differ in detail from the one indicated by way of example, and which will reach also the protection that is collected as long as it is not altered, change or modify its fundamental principle.

Claims (5)

1. Adjustable head, of the type intended for coupling to wheelchairs, characterized by being constituted by an essentially tubular structure (1) preferably arranged in the form of a cross comprising a transverse section consisting of two telescopic arms (2) and divergent whose inner and extensible part is angled forward, being provided at its ends with two fixing brackets (3) suitable for fixing by conventional fixing systems, such as screw (4) and nut (5), to the tubular structure of the upper part of a wheelchair (s), the intersection with the vertical arm (6) comprising a connecting element (7), with a prismatic morphology and hollow interior, provided with two screws (8) to which they are attached and they articulate the telescopic arms (2), extend downwards in a solidarity tube (9) through which the vertical arm (6) runs at the upper end of which there is another tubular segment (10) integral and hole arranged perpendicularly to that, through which the depth regulating tube (11) that joins the head rest (12) runs through a clamping nut (13) to a ball joint (14) located at its end. 2. Adjustable head according to the preceding claim, characterized in that the union of the fixing brackets (3) with the extendable arms (2) is articulated and because the union of said extendable arms (2) are connected to the joint element (7 ) also in an articulated manner by acting the axle screws (8) of said joint. 3. Adjustable head according to claim 2, characterized in that the adjustment of the vertical arm adjustment (6) is done manually by tightening the fixing knob (15) located in the tubular segment (7), and because the adjustment of The regulation of the depth regulating tube (11) is done manually by tightening the fixing knob (16) located in the tubular segment (10). 4. Adjustable head according to claim 3, characterized in that the regulation of the headrest (12) is carried out manually and allows a very wide angle variation both lateral and vertical thanks to the ball joint (14). 5. Adjustable head according to claim 4, characterized in that by articulating the screws (8) of the telescopic arms (2) with the connecting element (7), a downward movement of the vertical arm (6) is achieved the folding of the tubular structure (1) allowing its permanence in the chair (s) when it is folded, and because an upward movement of the vertical arm (6) allows its opening when deploying the chair (s).