BG61795B1 - Lying padding - Google Patents

Abstract

The padding consists of first thin supporting layer (2) madeof standard flexible material having great wear- andbreaking-resistance which has elongated basic form and is used asa strong supporting part, and of a considerably thinner secondlayer (3) fixed or integrated to layer (2) which consists ofporous or puffy soft material forming the mattress part (3). Thelatter is divided in several elongated parts (5, 6, 7) by mean oflongitudinal slots (4, 4'). Parts (5, 6, 7) are connected to eachother by supporting layer (2) in sections (8, 8'), forminglongitudinal lines for folding enabling the folding of the paddingin a packet form where the two side parts (6, 7) are foldedinwards to the middle part (5), and the supporting layers (2) ofthe respective side mattress parts (6, 7) are turned one againstthe other.10 claims, 14 figures

Description

Field of application

The invention relates to a bed support consisting on one side of a thin first layer of a versatile flexible material with high abrasion and tear resistance, having a substantially elongated base shape and forming a supporting element, for example, to allow the pad to be used as a stretcher, and on the other hand, consisting of a much thinner second layer of elongated base form, which is permanently bonded or integrated with the carrier layer and which consists of porous or fluffy soft material designed to form a mattress. m for convenient placement on the substrate.

BACKGROUND OF THE INVENTION

The bearing bed of the type described above is known from PCT application WO87 / 04614 (PCT / SE / 00062). According to a preferred embodiment of this known bedding, the two layers are fully integrated with each other by forming them from the same polymeric material, for example polyethylene, with the thin carrier layer having a thickness of about 0.6 to 1 mm and a density of 0 , 9 to 1.0 kg / dm ³ , while the thick porous layer has a thickness of about 5 mm and a density that is significantly (many times) reduced, for example about 0.05 kg / dm ³ . Thus, according to a preferred embodiment, the bearing pad has a total thickness of about 6 mm, thereby enabling it to be wound into a helically wound roll, which can be easily stored, for example in a backpack. An important advantage of a known pad is that it can be quickly and easily used as a stretcher when needed. For this reason, this product is particularly suitable for outdoor use and for many activities. For example, the pad may be placed in a soldier's backpack and perform a dual function, i.e. not only to serve as a heat insulating and load leveling pad for sleeping on twigs or the like, but also as a flexible stretcher structure in the event that the soldier or people near him are injured.

The disadvantage of this bed rest is that, due to its limited thickness (6 mm according to the preferred embodiment), it gives too little opportunity or even poor damping properties and poor load distribution. If the pad is placed directly on a solid, even surface, for example on a solid bed base, the relatively thin, porous layer does not provide any comfort for rest.

Another major drawback is the fact that very rarely or almost never large enough stretchers are available in or near some sites, such as in railway and subway cars, there is often only one or several (in the worst case, none ) stretchers available, which are often in difficult of access areas, sometimes even forgotten by the appropriate staff. In the case of mass casualties with many injured people, the absence of a sufficient number of easily accessible stretchers is a circumstance that hinders rescue operations, delaying them sometimes to such an extent that the injuries are seriously aggravated and become fatal.

Various types of flexible, stretcher-like, bedding for human rescue and evacuation purposes are disclosed in WOA-91/18576, US-A-4 124 908, US-A-4 186 453 and US-A-4 442 557. However, these known bearing pads do not have slots in the mattress, which are characteristic features of the invention and which form longitudinal folding lines to allow the pads to be folded.

WO-A-86/02814 describes a mattress-like bed support that can be folded into a seat-shaped package. In this case, however, the folding takes place laterally and the support has no longitudinal slots of the type that characterize the invention. The pad disclosed in this document cannot be used as a stretcher. Registered Norwegian Industrial Design No. 68206 has a known bedding with lateral recesses for folding.

SUMMARY OF THE INVENTION

The invention is intended to further refine the pad known in WO87 / 04614 in such a way that it can, in addition to serve as a stretcher, be used as a comfortable pad to lie directly on a flat, solid surface. Thus, the main object of the invention is to provide a pad that, in a standby state, in which it can immediately be used as a stretcher, can be used in the usual way as a damping element and / or as a soft load-distributing element, performing in whole or in part these features. In other words, for a long time when stored or ready, the pad can be used as a damping and / or supporting small part, for example in the form of a backrest or a seat-forming part, which can then be quickly and easily converted to a stretcher .

The bearing pad comprises a thin carrier layer of versatile flexible material with high abrasion and tear resistance, having a substantially elongated base shape and forming support element, for example to allow the pad to be used as a stretcher. The support structure also includes a much thinner second layer with the same elongated base form, which is fixedly or integrally filled with the carrier layer and which consists of a porous or fluffy soft material designed to form a mattress for convenient placement on the support. According to the invention, the mattress portion is divided into at least two elongated portions by at least one longitudinal dividing slot. These parts are connected together by means of a carrier layer, in regions forming longitudinal folding lines, which allow the pad to be folded into a package in which at least one lateral mattress portion is folded inward to the other, the middle mattress portion, and the supporting ones the layers of the respective mattress parts are facing each other.

According to the invention, the pad has a mattress at least 30 mm thick. preferably at least 50 mm.

According to the invention, the separating slit has a depth equal to the thickness of the mattress portion in order to cut the mattress portion completely to the carrier layer.

According to the invention, the mattress includes a middle mattress that is wider, for example twice than the two lateral mattresses located on either side of the middle mattress. The side mattresses are formed by dividing slots.

According to the invention, the pad is wrapped in a wrapping flexible envelope in standby or storage state.

According to the invention, the envelope is disposed externally on the backing sheet in its folded state, with the envelope keeping the parts of the mattress pressed together.

According to the invention, the envelope is disposed on the substrate in a position where the different mattress parts are unfolded or in a common plane, whereby the envelope wraps the insert comprehensively in contact with the surfaces of the mattress parts.

According to the invention, each side mattress is divided into two sections through a slot.

According to the invention, each lateral mattress portion is divided into two plate-shaped mattress portions by a different slit substantially parallel to the carrier layer and these portions are connected along their longitudinal lateral edges by a reinforcing layer immovably connected to the carrier layer.

According to the invention, at least one mattress portion is shorter than the total length of the pad in the region of at least one of the two opposite short sides of the middle mattress portion.

Description of the figures

The invention is explained in more detail with the accompanying figures, of which:

Figure 1 is a perspective view of a bed support according to the invention ready for use as a stretcher;

FIG. 2 is a perspective view of the folded stand, in which it is packaged in a wrapping envelope; FIG.

Figure 3 is a schematic cross-sectional view showing the pad packaged in another envelope;

FIG. 4 is a similar side view showing three different parts included in the pad and each of them is enclosed separately by different parts of the envelope;

Figure 5 is a side view similar to an alternative embodiment of the pad;

Figure 6 is a view illustrating another alternative embodiment of the pad;

Fig. 7 is a perspective view corresponding to Fig. 1 showing an exemplary embodiment with an alternative surface design for lying on the substrate;

8 is a schematic perspective view showing the bedding as part of an interior;

Figure 9 is a side sectional side view showing a bed support provided with air ducts;

FIG. 10 is a side view showing an exemplary embodiment with two resting pads placed in a common envelope; FIG.

Figure 11 is a side view showing a further alternative embodiment of the invention;

Figure 12 is a perspective view showing a further alternative embodiment;

Figure 13 is a cross-sectional view showing the pad of Figure 12 surrounding a patient;

Figure 14 is a perspective view of another alternative embodiment of the invention.

Examples of carrying out the invention

Figure 1 shows a bearing pad, which in its entirety is numbered 1 and which contains, on the one hand, a first thin carrier layer 2 of versatile flexible material with high abrasion resistance and high tear strength and, on the other hand, considerable a thicker second layer 3 which is fixedly connected or integrated (united) with the first layer and which consists of a porous or fluffy soft material, designed to form a mattress that allows it to be conveniently disposed on it. Preferably, the two layers 2 and 3 can be made in the manner shown in WO-A-04614, i.e. from the same polymeric material, for example polyethylene or propylene, wherein the material of the solid, thin and carrier layer 2 has several times the density of that of the porous layer 3. It is also possible for the two layers to be made of different materials and then attach to each other for example with some kind of glue or by thermal welding. In the example shown, each of the two layers has a rectangular basic shape, although it is possible to give them a slightly beveled shape. In both cases, however, the basic shape is extended so that the length of the pad is always greater than its greatest width.

According to the invention, the layer 3 forming the soft mattress portion of the bed support is divided by one or more longitudinal dividing slots 4, 4 'into several longitudinal portions 5, 6, 7 that are connected together by the thin support layer 2. the mattress portions 5, 6, 7 connected together are achieved in the portions 8, 8 'which form longitudinal folding lines allowing folding of the bed support in a package in which the two mattress portions 6 and 7 fold inwards to the middle mattress part 5 so that the portions 2 ', 2 ", 2'" of the carrier layer are inverted ati each other.

According to a preferred embodiment of the invention, the mattress part 3 has a thickness of at least 30 mm, preferably at least 50 mm, by which the pad 1 can be used as a traditional mattress, in particular in a folded position, for example in a hospital bed. According to the example of Figure 1, the mattress portion, i. the thick soft layer 3 is expected to have a thickness of 50 mm, while at the same time the length of the pad is 2000 mm. Preferably, the middle mattress portion 5 has a width in the range of 600-800 mm, while the width of each individual lateral mattress portion 6 and 7 is about half the width of the middle portion

5. Therefore, in the folded position shown in Fig. 3, the pad receives the shape of a parallelepiped about 100 mm thick, about 2000 mm long and 600-800 mm wide. Of course, length and thickness can deviate from these absolute values.

As can be seen in figure 1, tapes 9 can be connected to the thin and sturdy support layer 2, which on the one hand may consist of wearing straps and, on the other hand, straps for connecting the side portions around the body. of the lying man.

According to a preferred embodiment of the invention, each individual dividing slit 4 has a depth equal to the thickness of the mattress portion 3, so that the latter is cut to the carrier layer 2. In other words, the separating slots keep the lateral mattresses 6 and 7 completely separate from the middle mattress part 5. Folding occurs only along said sections 8, 8 of the carrier layer 2.

Although the side sections 6 and 7 are the same width according to the example of FIG. 1, they may also have different widths.

According to a preferred embodiment of the invention, the bearing pad 1, which is folded along the folding lines, is packaged in a wrapping flexible envelope. An exemplary embodiment of such an envelope 10 is shown in Figure 2. In this case, the envelope comprises a wide surface which is located against the folded inward side portions 6 and 7 and on the peripheral portions 11 extending along the long and short sides. which peripheral parts 11 are kept elastically tensioned on the upper side of the middle mattress portion 5, for example by means of a flexible tensioning belt 12, for example in the form of a rubber strap. Preferably, the envelope 10 is of a suitable textile material, for example velvet fabric, furniture fabric or similar fabric. The envelope 10 can be easily and quickly removed from the packing pad 1 for use as a stretcher. According to an essential aspect of the invention, the kit 13 shown in Figure 2 and comprising the packaged resting pad 1 and the enclosing envelope 10 can be used in many different circumstances, for example as a backrest or a seating portion, e.g. room or in a vehicle. Thus, when stored or on standby for a long period of time, this kit can be used, for example, as a furniture-forming element and then quickly transformed into a lifeline. This is a significant advantage in maintaining a large amount of stretchers easily accessible in various public places such as trains, public buildings, departmental warehouses and more.

Figure 3 shows a possible envelope 14 that encloses and covers the two opposite wide surfaces of the package and at least the longitudinal side edges such that the envelope is endless. According to this embodiment, the envelope may also cover the short edges of the package. In this case, too, the envelope may be made of textile material, although other materials are also possible, such as corrugated plastic, adhesive plastic or similar material. Provision must be made for the envelope 14, as well as the envelope 11, to hold the mattresses 5, 6, 7 together and to press them together in a folded position.

Figure 4 shows an alternative embodiment according to which the envelope 15 comprises three different parts 15 ', 15 ", 15'", each of which separately covers the different mattress parts 5, 6, 7. Thus in this case the envelope is disposed on the bed support when the individual mattress parts are folded or in a common plane, the envelope being fully enclosed by the mattress parts and in contact with their surfaces.

Figure 5 shows an exemplary embodiment in which the portions 2 "and 2" of the carrier layer have a smaller width than the lateral mattress portions 6 and 7 of the mattress portion. In this embodiment, the outer longitudinal end portions of the lateral mattresses become more flexible and softer than the embodiment of Figure 1.

Figure 6 shows an exemplary embodiment according to which each individual side portion is in turn divided into two portions 6 ', 6' and 7 ', 7' by corresponding longitudinal dividing slots 4 'and 4' '. In this exemplary embodiment, the lateral mattress portions can be more easily connected to the body of the patient.

Figure 7 shows an exemplary embodiment in which an uneven structure is attached to the upper surface 6 of the middle mattress portion 5, for example in the form of longitudinal grooves, to reduce the risk of wounding when the pad 1 is exposed. used for a long period of time as a mattress, for example for hospital beds.

Figure 9 shows an exemplary embodiment according to which the various layers of the parts of the bearing bed 1 are made with air ducts 17, which assist in the removal of moisture and vapors from the bed, and which can cause upward flow of air to the lying body. for example, bringing air to the border area between the mattresses.

Figure 10 shows an exemplary embodiment according to which two identical bearing pads 1 are adjacent to one another, wherein the surfaces of the bearing of the middle mattress portions 5 are in contact. According to this embodiment, the lateral mattress portions 6 and 7 are folded inward to the middle portions, thus forming a pack four times larger than the individual mattress layer 3. The packet is then put into an envelope.

Figure 11 shows an exemplary embodiment according to which each individual lateral mattress portion is divided into two lamellar portions 19, 19 'by another slot 18, 18' parallel to the carrier layer 2, which portions 19, 19 'are connected together along their longitudinal lateral edges by a support layer 20 protruding from the carrier layer 2. As can be seen in figure 12, the plate portion 19 'immediately adjacent to the lying surface of the middle mattress portion 5 may be severed from the outer plate portion 19. Thus, the arms of the lying patient or h eyelids can be positioned between the two lamellae and can be immobilized after the outer lamellae are connected to each other, for example by straps 9. Thus, when the bed support is used as a stretcher, not only the body and legs of the patient can be permanently fixed and stationary, but also the hands of the patient, which is important, for example, in rescue operations in difficult circumstances.

Figure 14 shows an exemplary embodiment according to which the middle mattress portion 5 consists on one side of a bottom separate layer 21 and, on the other hand, of a plurality of surface constituent mattresses 22, 22 ', etc. These individual surface mattress members 22, 22 'may have different densities to best meet the requirements for the lying surface, which are different for different parts of the body.

In practice, the longitudinal dividing slots 4, 4 'forming the folding lines in the various embodiments of the invention, along which the individual parts of the mattress are folded together, can be implemented in various ways. One way is to cut or cut the porous material after its fabrication as a homogeneous continuous mattress. Alternatively, already in connection with the production of the porous layer, the latter is formed so that the separating slots of the desired depth and shape are formed immediately. In this context, it should be emphasized that the cross-sectional shape of the individual slit 4, 4 'may preferably be triangular or otherwise bevelled so that the wedge-beveled edges are formed in the mattress portions adjacent to each other. Slots 4 and 4 'can also be made by melting or pressing.

Possible modifications of the invention

It is obvious that the invention is not limited to the exemplary embodiments described and shown in the figures. Thus, within the scope of the invention, it is possible to incorporate electrically conductive material into the mattress part 3 in a manner known per se, for example electrically conductive polymer fibers whose conductivity is so selected that heat is generated during an electric current. In other words, the mattress portion can be kept warm at the appropriate temperature by electrically powered. In practice, the electrically conductive material in this case should be positioned in close proximity to the thin support layer, in order to avoid the risk of it being pressed or stretched due to possible deformation of the bearing pad. This ensures that the same electrical resistance of the material is maintained while ensuring a uniform heating temperature. Moreover, the geometric shape of the backing pad can vary greatly. Thus, instead of a rectangular basic shape of the respective mattress parts, it may also have a slightly beveled or wedge-shaped shape. It should also be noted that the soft and porous mattress layer may consist of two or more sublayers. In addition, the solid support layer 2 can be practically designed (molded) with handles or recesses forming grips to allow the article to be used as a stretcher. Further, it is possible to provide the support layer with longitudinal pockets in which reinforcing bars can be inserted if necessary.

Claims (10)

1. A bearing pad comprising, on the one hand, a first thin carrier layer (2) of versatile flexible material with high abrasion and tear resistance having a substantially elongated base shape and forming support member, for example to allow the support to be used as stretcher and, on the other hand, a much thinner second layer (3) with the same elongated base form, which is fixedly or integrally filled with the carrier layer (2) and which consists of porous or fluffy soft material designed to form a mattress part for the doodle positioning on the support, characterized in that the mattress portion (3) is divided into two or more elongated portions (5, 6, 7) by at least one longitudinal dividing slot (4, 4 '), which portions are connected together by means of a carrier layer (2) at most in the portions (8, 8 ') forming longitudinal folding lines which allow the pad to be folded into a package in which at least one lateral mattress portion (6, 7) is folded inwards to the other (5), and the supporting layers (2) of the respective parts are facing each other. A recumbent bed according to claim 1, characterized in that the mattress part (3) has a thickness of at least 30 mm, preferably at least 50 mm. A recumbent bed according to claim 1 or 2, characterized in that the separating slot (4, 4 ') has a depth equal to the thickness of the mattress portion (3) in order to cut the mattress portion (3) completely to the carrier layer (2). A bed support according to claims 1 to 3, characterized in that the mattress part (3) includes a middle mattress part (5) that is wider, for example twice, than the two lateral mattress parts (6, 7), located on either side of the middle mattress portion (5), wherein the lateral mattress pieces (6 and 7) are formed by dividing slots (4, 4 '). A bed support according to any one of claims 1 to 4, characterized in that it is wrapped in a wrapping flexible envelope (10, 14, 15) in standby or storage state. A bed support according to claim 5, characterized in that the envelope (10, 14) is disposed externally on the bed support (1) in its folded state, wherein the envelope maintains the parts (5, 6, 7) of the mattress part pressed together. A bed support according to claim 5, characterized in that the envelope (15) is disposed on the support in a position where the different mattress parts (5, 6, 7) are folded or in a common plane, the envelope being wrapped comprehensively. and the substrate is in contact with the surfaces of the parts (5, 6, 7). A bed support according to any one of claims 4 to 7, characterized in that each side mattress part (6) is divided into two parts (6, 6 ') by a slot (4). A bed support according to any one of claims 4 to 7, characterized in that each lateral mattress portion is divided into two lamellar mattress pieces (19, 19 ') by another slot (18) substantially parallel of the carrier layer (2), and which parts (19, 19 ') are connected along their longitudinal side edges by a reinforcing layer (20) fixedly connected to the carrier layer (2). A bed support according to any one of the preceding claims, characterized in that at least one mattress portion (19, 19 ') is shorter than the total length of the pad (1), in the area of at least one of the opposite short sides of the middle mattress (5).