LT4183B - Lying underlay - Google Patents

Abstract

The horizontal foundation consists of a thin first layer (2), from the one side, made of thoroughly flexible material, highly resistant to wear, having an essentially prolonged foundation shape and a forming holder, and, from the other side, the much thicker layer (3), which is permanently connected to or joined with the holder layer (2) and which consists of a porous or fluffy soft material intended to form the mattress part. The mattress part (3) is divided by one or several lengthwise cuts (4, 4<1>), into which several prolonged sections (5, 6, 7) are to be considered to a joint holder layer (2), or rather the parts (8, 8<1>) forming lengthwise folding lines, that allow the horizontal foundation to be folded into a package, where two sections (6, 7) of the mattress are folded inside towards the other section (5), when the holder layers (2) of the respective sections are turned to face each other.

Description

Purpose of the Invention

The present invention relates to a horizontal base consisting on the one hand, of a thin first layer of a fully flexible material with high wear resistance, having a substantially elongated base shape and forming a carrier such as a horizontal base as a stretcher, and on the other , in the form of an elongated base, a substantially thicker second layer which is permanently attached to or joined to the carrier layer and consists of a porous or fluffy soft material for forming a portion of the mattress which is comfortable to rest on the base.

State of the art

In general, the horizontal basis for the type described above is WO 87/04614 (PCT / SE 87/00062), first disclosed by the applicant. According to an embodiment of this known horizontal substrate, the two layers are closely bonded together to form a thin carrier layer of 0.6 mm to 1 mm to form one and the same polymeric material, such as polyethylene.

-2-j thick and a density of 0.9 kg / dm to 1.0 kg / dm, whereas a thick, porous layer is about 5 mm thick and has a density that is many times smaller, for example about 0.05 kg / dm ³ . Thus, according to the embodiment according to the present invention, the horizontal base is about 6 mm in total thickness; this allows it to be wound on a spirally wound reel that can easily be placed, for example, on a backpack or backpack. The essential advantage of this known horizontal base is that it can be used quickly and smoothly as a stretcher when needed. For this reason, this product is particularly well suited for outdoor use and mass events. For example, a horizontal base can be conveniently placed in a soldier's backpack and serve a dual function, serving not only as thermal insulation and a substantial burden for leveling the base of the sleeper on a tree top or the like, but also as a flexible stretcher design for the soldier. or persons close to him would be injured. Further, the disadvantage of this horizontal base is that its limited thickness (6mm in the embodiment shown) yields a very mediocre, if not explicit, poor shock absorption and load-bearing ability. In this way, when the substrate is simply laid on a hard, flat surface, such as the bottom of a hard bed, the relatively thin porous layer does not offer any reliable comfort.

Another common drawback, as understood by the Applicant and forming the basis of the present invention, is the fact that stretchers are rarely in close proximity or never in sufficient quantities in common types of establishments. For example, on a train or subway train, the seats, often only one, or perhaps a few stretchers (at worst, not at all) are ready, which, more often than not, are often hidden in hard-to-reach places, sometimes neglected by responsible staff. If an accident with many people's injuries occurs, the absence of a stretcher that is readily available causes circumstances that make the required rescue work much more difficult and troublesome, sometimes to the extent that the injuries are seriously worsened and even become fatal.

Objectives and Features of the Invention

The present invention seeks to further improve the base unit known from WO 87/04614 such that, in addition to being used as a stretcher, it can also be used as a convenient horizontal base simply on a flat solid surface. Thus, the main object of the invention is to provide a base unit whose ready-to-use form, when ready for use as a stretcher, can be used conventionally as a soft element for shock absorption and / or load distribution, e.g. In other words, the stored or ready-to-use unit can be useful for a long time as a shock absorbing and / or support soft part, e.g., in the form of a support part for a support or seat forming part, and then quickly and easily converted into a stretcher.

According to the present invention, at least the most important object thereof is achieved by the features set forth in the description of claim 1. Further, embodiments of the invention are set forth in the dependent claims.

Further explanation of the prior art

Various forms of flexible, stretcher-type horizontal bases for rescue and patient evacuation have been previously disclosed in WO-A-91/18576, US-4,124,908, US-A-4,186,453, and US-A-4,442,557. the bases are lacking in the notches in the mattress which are characteristic of the present invention and which form longitudinal bending lines in order to fold the horizontal base into the package.

Further, WO-A-86/02814 discloses a mattress-type bed base that can be folded into a seating package. However, in this case, the bends are arranged horizontally, and the bed base lacks any longitudinal notches such as those of the present invention. Also, the substrate is not shown suitable for use as a stretcher in this document. It is also known from Norwegian Design Registration No. 68206, providing a horizontal base with horizontal bend marks.

Brief description of the accompanying drawings

FIG. 1 is a perspective view showing a horizontal base of the invention ready for use as a stretcher;

FIG. 2 is a perspective view showing the same folded horizontal substrate ready to be wrapped in a cover;

FIG. 3 is a schematic cross-sectional view showing a base wrapped in another shell.

FIG. 4 is a similar end view showing the three different sections forming the base, each of which is individually covered by separate portions of the cover;

FIG. 5 is an end view showing an alternative embodiment of the base;

FIG. 6 is an end view illustrating another alternative embodiment of the substrate;

FIG. 7 is a perspective view according to FIG. 1, showing an embodiment with an alternative horizontal base surface design;

FIG. 8 is a schematic perspective view illustrating the use of a horizontal base as part of an interior;

FIG. 9 is an end partial sectional view showing a horizontal base having aeration passages;

FIG. 10 is an end view showing an embodiment with two horizontal bases just enclosed in a common shell;

FIG. 11 is a rear view showing another alternative embodiment of the invention;

FIG. 12 is a perspective view showing another alternative embodiment;

FIG. 13 is a cross-sectional view showing the base of FIG. 12, with patient inside; and

FIG. 14 is a perspective exploded view illustrating another alternative embodiment of the invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

FIG. 1 shows a horizontal base, generally referred to as 1, consisting of, on the one hand, a thin first layer 2 of a fully flexible material with high wear resistance and, on the other, a significantly thicker second layer 3 permanently bonded to or joined by with the first layer and consisting of a porous or fluffy soft material to form part of the mattress, this allows for a comfortable rest on it. It is useful that both layers 2, 3 can be made in the manner disclosed in WO-A-87/04614, i.e. one of the same polymeric material, for example polyethylene or polypropylene, having a high density, a thin layer and a support layer 2. many times higher than the density of the porous layer 3. In addition, it is also possible to make two layers of different materials and then join them to each other, for example by some form of bonding or by thermal welding. In the example shown, each of the two layers has a rectangular base shape, although it is possible to give them a slightly trapezoidal shape. Furthermore, in both cases the shape of the base is lengthened to the extent that the base is always longer than its maximum width.

According to the invention, the layer 3 forming the soft base portion of the mattress is divided by one or more longitudinal notches 4, 4 'into a plurality of elongated section portions 5, 6, 7 which are held together by a thin carrier layer 2. co-extending in portions 8, 8 'forming longitudinal bending lines allowing the horizontal base to be folded into a package in which two sections 6, 7 are folded inwardly towards the middle section 5 with portions 2', 2, 2 'of the bearing layer rotated to each other .

In a preferred embodiment of the invention, the mattress portion 3 is at least 30 mm thick, preferably at least 50 mm, so that the horizontal layer in question can be used as a normal mattress, namely in its folded configuration, e.g. According to the example of FIG. 1 part of the mattress, i.e. thick soft layer 3 must be approximately 50 mm thick at the base length of 2 000 mm. Advantageously, the middle section 5 is then 600 to 800 mm wide, whereby the width of each individual section 6, 7 is about half the width of the middle section 5. Therefore, the bent forms shown in Figs. 3, the horizontal base takes the form of a parallelogram, about 100 mm thick, about 2000 mm long and 600 to 800 mm wide. Of course, length and width can also deviate from these absolute values.

As can be seen from Figs. 1, the straps 9 may be connected to a thin and strong supporting layer 2, the straps may be formed, on the one hand, by holding straps and, on the other hand, by straps for holding parts together against the body of the lying person.

According to the embodiment of the present invention, each individual dividing notch 4 is of a height equal to the thickness of the mattress portion 3 so as to pass the latter to the carrier layer 2. In other words, the dividing notches 6, 7 laterally apart from the middle section 5. 8, 8 'of the above-mentioned carrier layer 2 parts.

Although the sections 6, 7 according to Example FIG. 1 is of equal width, they can also be of different widths.

According to an embodiment of the present invention, the horizontal layer which is folded along the bending lines in question is folded into a covering flexible shell. One possible embodiment of such a sheath 10 is shown in Figs. 2. In this case, the sheath comprises a large surface placed in front of the inwardly folded sections 6, 7, the peripheral portions 11 of which extend along both sides of the long and short side portions 11, elastic tension tape 12, figure: rubber band. It is useful when the cover 10 is made of a suitable textile material, for example, a fluffy fabric, furniture material or the like. It should be clear that the casing 10 can be easily and quickly removed from the packed horizontal base for later use as a stretcher. According to an essential aspect of the present invention, block 13 shown in FIGS. 2 and consisting of a wrapped horizontal base 1 and a covering casing 10 may be used as a result under different circumstances, e.g. as a support forming part for the backrest or as a seat forming part, for example, in a room or in a vehicle. In this way, the unit in the form of a storage or preparation can be used for a long time as, for example, a furniture-forming element, after which it can be rapidly transformed into a life support. This provides the essential advantage of keeping a large number of stretchers within easy reach of various public institutions such as trains, public buildings, office floor lobby and so on.

FIG. 3 shows an alternative shell 14, which wraps and covers two opposed large surfaces of the package and at least extends half the edges, the shell being infinite. In this embodiment, the shell may also cover the short ends of the packet. Also, in this case, the cover may be made of a textile material, although other materials are also flexible, such as shrink plastic, adhesive plastic or the like. It should be noted that the shell 14, like the shell 11, holds the sections 5, 6,7 of the mattress together and compresses these parts with one another when folded.

FIG. 5 shows an alternative embodiment in which the shell 15 consists of three different sectors 15 ', 15, 15', each of which separately covers different mattress sections 5, 6, 7. Therefore, in this case the shell is placed on a horizontal base with the individual mattress sections bent or in the common plane, the wrap envelopes the sections of the mattress completely and is in contact with their surfaces.

FIG. 5 illustrates an embodiment in which the carrier layer portions 2, 2 'have a smaller width than the mattress portion sections 6, 7. In this embodiment, the outer longitudinal section portions become more flexible and softer than in the embodiment of FIG. 1.

FIG. 6 shows an embodiment in which each individual section is divided into two sections-sections 6 ', 6 and 7', in the order shown in 7, respectively, the respective dividing notch 4, 4 '. In this embodiment, the sections may be more readily associated with the patient's body.

FIG. 7 illustrates an embodiment of providing an uneven surface structure, such as longitudinal fibers, to the upper surface 16 'of the middle section 5 of the mattress portion to reduce the risk of bedsores when used as a mattress over a prolonged period, such as a hospital bed.

FIG. 9 illustrates an embodiment in which the various layers of the horizontal base sections are provided with continuous ventilation ducts 17 which help to remove moisture and vapor from the base and which can bring air jet upward toward the resting body, e.g.

FIG. 10 shows an embodiment in which two similar horizontal bases are believed to lie adjacent to each other, with horizontal surfaces of the central section 5 in contact with one another. According to this embodiment, the sections are folded inwardly towards the middle sections, thus forming a package of four fold thicknesses relative to the individual mattress layer 3, and the package is then enclosed in a shell.

FIG. 11 shows an embodiment in which the individual section is divided into two plate-shaped portions 19, 19 'incised 18, 18' parallel to the carrier layer 2, the portions 19, 19 'of which are held together by a longitudinal rib reinforced layer 20 which protrudes from the carrier layer 2. As can be seen in Figs. 12, the plate portion 19 'adjacent to the horizontal surface of the central section 5 may be shorter than the outer plate portion 19. The sleeping patient or person may thus have their arms positioned between the two plate portions and may be held in place by connecting the outer plate portions to one other, such as straps 9. Thus, when the horizontal base is used as a stretcher, not only the patient's torso and legs can be held firmly fixed and immobile, but also the patient's hands are important, for example in connection with rescue operations in harsh environmental conditions.

Finally, FIG. 14 illustrates an embodiment in which the middle section 5 of the mattress portion is formed, on the one hand, by the lower sublayer 21 and, on the other, by a plurality of outer portion members 22, 22 'and so on. These individual surface elements 22, 22 'may have different densities due to best meet the requirements of horizontal surfaces that are different for different body parts.

In practice, longitudinal notches formed by bending lines in different embodiments of the invention, along which lines different sections of the mattress can be folded inwardly toward each other, can be made in a variety of ways. One way is to cut or cut out the porous material after applying it to the entire mattress. Another way, in connection with the production of an already porous layer, is to form the layer so that the notches and shapes of the dividing notches are immediately formed. In this regard, it is pointed out that the cross-sectional shape of the individual incision may be useful when triangular or otherwise tapered so that the wedge-shaped edge portions are formed adjacent to one another in the mattress sections. The notches can also be made by melting or pressing.

Modifications of the invention are possible

Obviously, the invention is not limited to the embodiments described and shown in the drawings. Thus, it is obvious that the invention encompasses joining electrically conductive materials to a portion of the mattress in a known manner, for example, electrically conductive polymeric fabrics, the conductivity of which is selected so that heat is produced when the current is applied. In other words, the portion of the mattress can retain heat at a temperature suitable for its purpose by supplying electricity. In practice, the electrically conductive material in question should be positioned very close to the thin support layer so as to eliminate the risk of being compressed or broken due to the possibility of horizontal substrate deformation. In this way, it is guaranteed that the material will always maintain the same electrical resistance, thus creating a uniform heating temperature. In addition, the geometric shape of the horizontal base may vary most. In this way, in addition to the corresponding sections of the mattress, a rectangular base may also be slightly tapered or wedge-shaped. It should also be stated that the soft porous layer of the mattress may consist of two or more layers. It may also be mentioned that the strong carrier layer 2 may be practically indicated with handles or handle-shaped recesses for use as a stretcher. Further, the carrier can be provided with longitudinal pockets in the layer, into which rigid rods can be inserted if necessary.

Claims (10)

DEFINITION OF INVENTION A horizontal base consisting on the one hand of a thin first layer (2) of a fully flexible material with high wear resistance, having a substantially elongated base shape and forming a carrier, for example, allowing the horizontal base to be used as a stretcher, a substantially thicker second layer (3) in the form of a uniformly elongated base permanently attached to or joined to the carrier layer (2) and consisting of a porous or fluffy soft material for forming a portion of the mattress which is comfortable to rest on the base, so that the mattress part (3) is divided into two or more elongated sections (5, 6, 7) by at least one longitudinal notch (4, 4 '), the sections being held together by the supporting layer (2), more precisely the parts (8, 8') bend lines that allow the horizontal base to be folded into a package containing at least one mattress The section (6, 7) is bent inwardly towards one another (5) with the support layers (2) of the respective sections turned to each other. Horizontal base according to claim 1, characterized in that the mattress part (3) is at least 30 mm thick, more preferably at least 50 mm. Horizontal base according to claim 1 or 3, characterized in that the dividing notch (4, 4 ') has a height equal to the thickness of the mattress part (3) in order to completely divide the latter into the support layer (2). Horizontal base according to any one of the preceding claims, characterized in that the mattress part (3) consists of a middle section (5) which, for example, is twice as wide as two sections (6, 7) on both sides of the middle section. dividing notches (4, 4 ') 5. Horizontal base according to any one of the preceding claims, characterized in that it is packaged in a ready-made or storage form in a covering flexible shell (10,14,15). 6. The horizontal support according to claim 5, characterized in that the sheath (10, 14) is disposed on the outside of the horizontal folded base (1), the cover (5, 6, 7) being respectively pressed against each other. 7. Horizontal base according to claim 5, characterized in that the cover (15) is placed on the base when the different sections of the mattress are different. 5 (5, 6, 7) folded or in a common plane with the shell completely covered and in contact with the surfaces of the sections (5, 6, 7). Horizontal base according to any one of claims 4 to 7, characterized in that, by its replacement, its individual section (6) is divided into two sections (6 ', 6) by a notch (4). Horizontal base according to any one of claims 4 to 7, characterized in that the individual section is divided into two plate-shaped parts (19, 19 ') with a notch (18) substantially parallel to the supporting layer (2), the parts being held together. a reinforced layer (20) extending along the longitudinal edges and protruding from the supporting layer. Horizontal base according to any one of the preceding claims, characterized in that, at least after the mattress section, the carrier layer is extended to at least one of two opposite short sides, thereby forming the end portion without the mattress layer.