EP1031302A2 - Mattress - Google Patents

Abstract

The elastic properties of the mattress can be locally changed by inserts (10, 11, 13) which directly adjoin each other in the recesses (2, 3, 4) of the mattress core. The inserts extend over the entire width of the mattress and the foam core (1) has as edge layers a cover layer (5) and base layer (6) held spaced from each other by webs (7, 8, 9) which are preferably stuck in. The hollow interspaces form the recesses for the inserts. the inserts can be cubed or prismatic blocks whose cross section corresponds in height and width to half the overall height of the mattress

Description

The present invention relates to a mattress with a multi-part core made of elastic material, in particular a foam core, latex core or the like, in a coating and with one or more recesses in the horizontal central region of the longitudinal section and with transverse to the lying direction provided in the recess or recesses Inserts or inserts for changing the elastic locally Characteristics of the mattress, with the inserts or Inserts in the recess or recesses immediately lie together.

A multi-part mattress is known from US Pat. No. 4,389,743 A, the one-piece circumferential area and one of this surrounding, removable central area. Either the circumferential area, which represents the edge of the bed, as well as the removable in the longitudinal direction of the bed The lying area as the central area has a foam core are cast in the coil springs. So that the Edge of the bed and the lying area different hardness and have elastic properties.

It is also known to have a mattress made of three layers build up by three layers of foam different physical properties superimposed and of be held together in a common wrapping. In this It also makes sense to have recesses on the surface a foam mattress with a body-shaped Foam foam.

EP 0 945 090 A2 describes a mattress or a mattress core described, which is divided in two parallel to the lying surface is and has approximately cylindrical cavities, in each an approximately cylindrical insert is inserted. The used Materials can have different degrees of hardness. The division of the mattress and the successive Degrees of hardness have emerged in this configuration as not proven to be useful. AT 279 082 B discloses cylindrical longitudinal channels in a mattress core and inserts in the sense of plugs that partially fill the channels. This changes the degree of cushioning of a mattress.

Finally, EP 0 290 674 A1 shows a mattress an elastic plastic material. This mattress is in the The core is in two parts and the upper part is open at the bottom Chambers for spring elements. A flat plate-like The lower part is used for the cover, with holding fasteners for Fixing the two parts to each other are provided.

A mattress of the type mentioned is from FR-2 631 530 A known. This mattress has several open top ones Cavities in which inserts can be inserted. The Inserts have a cross section that is equilateral Matches trapezoid. There is always an alternating bet with the longer parallel side down and one with the longer one Parallel side inserted upwards. The stakes can have different hardness; therefore is an individual adjustment the hardness or elasticity in the head, shoulder, back and pelvic area possible, as is the case with orthopedic Are the case due to medically shaped pads is.

The disadvantage here is that the edges of the inserts, in particular when inserts of different hardness meet, be perceived as uncomfortable when lying down. Moreover accumulates in the joints between uses Dirt on.

The invention aims to provide a mattress at the outset mentioned type so that the pollution is lower and lying down is perceived as more pleasant, although the individual adjustment of the mechanical properties easy to perform specifically for the individual body areas is.

This is the case with a mattress of the type described above in that the inserts or inserts overlap span the entire width of the mattress and that the core, especially foam core, as a top layer and a top layer has a bottom layer, preferably by webs are glued, are kept at a distance from each other, wherein the hollow spaces the recess or the recesses form for the inserts or inserts.

This structure with two connected by foam webs relatively thin foam layers is manufacturing technology cheap and extremely convenient for transportation because this Structure rolled up very easily without middle layer and Can be transported to save space. They will be separate Inserts or inserts transported. The recesses are so big that they each have several of them close together can accommodate lying inserts, so that the middle position taken from the foam mattress to some extent and can be cleaned separately in small pieces. At the same time, this offers the possibility of inserting them trained pieces and building the horizontal middle layer to manufacture from different foams that result exchanged the same size or by purchase by others can be replaced. Using a color code, for example Inserts can be provided in three degrees of hardness optionally inserted according to the recommendation of an orthopedic surgeon or be inserted. Since the stakes over the The entire width of the mattress can extend from seen from both sides like the different Inserts are arranged. Due to the top layer Gaps between the inserts or inserts covered so that they cannot be perceived as unpleasant and are also protected against pollution.

The inserts or inserts can be cuboid or prismatic blocks are formed, the cross section in Height and preferably also width about half the total height corresponds to the mattress. Thus, the inserts or Measure inserts in cross section about 15x15 cm, taking the mattress has a total height of approx. 30 cm.

It is advantageous if at least some inserts or Inserts within a rectangular or cuboid outline are X-shaped in cross section. The X shape the cross section gives the insert made of foam material special mechanical properties. By touch with the top layer and the bottom layer as well as the mutual Touching adjacent inserts only via the Edge surfaces of the legs of the X shape become the contact surfaces reduced and the insertion due to reduced friction facilitated.

All types of mattresses should be cleaned from time to time. Because of the body moisture on the one hand and the dust on the other hand, dirt accumulates very quickly in the mattress which is an ideal breeding ground for dust mites. If like cleaning a foam mattress, then it is usually surprising how much dirt in the Cleaning device is collected. On the enlarged, in Inside the mattress, exposed surfaces of the inserts The dirt accumulates primarily, so that cleaning is significantly facilitated when these inserts are removed.

A preferred embodiment is characterized in that that the inserts or inserts correspond to a cross section an essentially equilateral triangle or have an essentially equilateral trapezoid and the inserts or inserts in the recess or recesses inserted in each case rotated by 180 ° about the longitudinal axis are, and that the webs through inclined surfaces to the cross-sectional shape the inserts or inserts are adapted. This embodiment enables particularly easy insertion the inserts: one pushes the inserts - starting from the walkways - one after the other. You have sideways Space, except of course for the last slot (in the middle between two adjacent bridges). But if you now the slightly higher upper layer, you can - due to the oblique Side surfaces - create a little game here, too the last slot can also be easily inserted can. But even if you are betting from above (e.g. through a slot), sloping side surfaces are favorable.

It is particularly advantageous if the inserts or inserts have a groove on the sloping side surfaces. Between the grooves then have an area (in the following head section called), which can be tilted relatively easily. If such a head section is excessively loaded on one edge it tilts so that the opposite edge something is pushed out, so that at this point the the mattress lying body is supported a little more, which somewhat reduces the excessive burden.

It is advantageous if the grooves are approximately semicircular in section are and have a diameter that is 25-35% corresponds to the length of the oblique sides of the trapezoid or triangle and if the centers of the grooves are the sloping sides divide approximately in a 1: 2 ratio, with the shorter section the shorter parallel side of the trapeze or the Top of the triangle is facing.

The invention also enables at least some of the Inserts or inserts as water-filled containers with a to form elastic wrapping. The special properties a waterbed is very much appreciated by some people. It can be arranged by alternating X-shaped arrangement Foam inserts and cuboid water-filled Insert or insert an individual lying comfort achieve. If a gel is used instead of water then there is a special damping of the deformation of the Mattress accessible. These inserts or inserts could be in Longitudinal direction and / or in the transverse direction through partitions in Chambers can be divided. Overflow is also possible from chamber to chamber through openings in the partition walls enable. This version can also be used for water-filled Inserts can be used.

It is undisputed today that many people are on Earth's rays react and that a metallic shield here Can remedy. It is therefore expedient if at least some of the inserts or inserts have a metallic surface or have insert or if in the recesses of the Mattress for the metal foil inserts inserted or glued are.

It is particularly useful if the top layer and / or the Bottom layer an opening, especially a slot for easier Insertion or exchange of the inserts or inserts having. This makes it easier to slide in laterally, but also allows insertion from above. The slot can extend across the entire width of the mattress core or at a distance, e.g. 20 cm to the left or right edge, end. For the insertion one becomes the mattress store so that the slot faces upwards. The mattress comes after inserting and / or inserting the blocks in a coating. When using the mattress appears it is expedient that the slots point downwards.

A specific embodiment is characterized in that that the slot can be closed by a Velcro fastener or the like is.

Alternatively or additionally, those adjacent to the slot can be used Areas of the top layer or bottom layer form-fitting interlock. This can be done by the Slot is meandering (like a puzzle). It can but also take place in that the adjacent areas overlap and has an area that protrudes into corresponding ones Depressions of the other area protrude.

Finally, it is advantageous if the inserts or inserts can be fixed in position by means of Velcro strips in the recesses are.

In summary, this results for the mattress according to the invention decisive advantages in hygiene and orthopedic Design of hardness and elasticity properties the mattress along its length. The mostly less critical The area of the legs can still be consistently with one Recess for inserts which are used as "bearings" for inserts of different degrees of hardness and elasticity serves. A standard mattress according to the invention thus offers already a lot of possibilities to vary the properties the mattress. Of course, the slots or Inserts can also be purchased in the desired degrees of hardness become.

An embodiment of a mattress according to the invention is shown in the drawings. Fig. 1 shows a top view a first embodiment of a mattress, Fig. 2nd a side view thereof, Fig. 3 an insert thereof in Top view, Fig. 4 shows another embodiment of an inventive Mattress in side view and Fig. 5 an insert of which in an enlarged view.

A foam core 1 has recesses 2, 3, 4, which by shaping the core or by a structure of a foam top layer 5, a bottom layer 6 and by glued-in webs 7, 8, 9 as spaces have arisen. Inserts can be inserted into these recesses 2, 3, 4 10, 11 in the form of cuboid, prismatic or similar blocks are inserted from the side, the are also made of foam. Inserts 10, 11 can have different mechanical properties (e.g. hardness, elasticity). They can be taken individually and cleaned and it can be arranged alternatively differently hard inserts 10, 11 the mattress in their whole length and width without gaps or also in zones the requirements and the subjective lying comfort be adjusted accordingly.

2 and 3 show a special form of an insert 10. This block has an approximately X-shaped cross section and provides through the resulting V-shaped channels for good interior Ventilation of the mattress. The impurities are also concentrated in these channels or stick to the enlarged Surface of this slot 10. The shape also has an effect on the elasticity. Furthermore, the contact surfaces with the inner walls of the recesses less than cuboid Inserts 11 so that insertion is easier becomes. A channel-shaped auxiliary device can be used for this, that has a smooth surface and that after Insert the inserts 10, 11 again from the recesses 2, 3, 4 is pulled out. But of course it is also possible the inserts 10, 11 with a smooth covering provided so that the friction during insertion is reduced becomes. 2 only two inserts 10 are shown as an example. It is clear that a mattress consistently with inserts 10 or consistently with inserts 11 or with two inserts 10, 11 and also with inserts of others Type or can be equipped from other materials.

2, the chamber 3 has a slot 12 as an example on (shown in dashed lines), which in the position of use of the Mattress 1 is facing downwards. The slot 12 can over the entire width of the mattress. When filling with the inserts 10, 11, the tabs, which on the Connect slot 12, held to the side and the slots 10, 11 are inserted as inserts. If the slot 12 ends on both sides in front of the side edges of the mattress 1, then there is a central opening, the size of which is sufficient Insert blocks for chamber 3. It can be viewed from the side be acted upon and helped. The blocks can also inserted from the side and through the slot 12 of Be aligned or drawn in to support. The Slot 12 can of course be provided in all chambers 2, 3, 4 his.

4 shows a mattress, the inserts 13 has in cross section the shape of an isosceles Have trapezes. The top layer 5 is with the bottom layer 6 glued over two edge-side webs 7. There is additional still two inner webs 8, 9, which, however, only are glued to the bottom layer 6. For changing the slots 13 one turns the mattress 1 over so that the floor layer 6 is on top lies. The bottom layer 6 can now be due to the slot 6 unfold around the two webs 7 so that the slots 13 can be easily inserted. As can be seen from this figure overlap the two adjoining slot 12 Area of the bottom layer 6, and they interlock positively.

It is of course also possible to omit the slot 12 and all webs 7, 8, 9 both with the bottom layer 6 and to be glued to the top layer 5. In this case, the Inserts 13 are inserted from the side, what is easier if you turn the mattress over in this case too and then pulls the floor layer 6 up a little: as a result the oblique sides of the slots 13 then also arise the last time you insert it (that's the one that exactly between two adjacent webs 7, 8, 9) Game, so that this last slot without an auxiliary device can be brought into place.

The position of the fixed webs 8, 9 within the mattress - if available - should be about 30 cm from the transverse center line the mattress. With that they come in the area of the waist of the user, no matter how the mattress is placed. With a 2 m long mattress, the mattress is divided into three equally large recesses (each around 60 cm long) divided, as shown in Fig. 4. (Each recess takes three stakes 13.)

Special mention should be made of the grooves 14 in the inclined surfaces of the slots 13 are provided. Thereby creates a head portion 15 that can tilt slightly. Becomes therefore an edge of an insert 13 is particularly heavily loaded and pushed in is the opposite edge pushed something out. Through the top layer 5, the pressure of Edges spread over a certain area so that this is not perceived as unpleasant.

The extent of the tilting movement depends on the exact location and Size of the groove. The following geometry has proven to be favorable (see Fig. 5): The trapezoid has a length of 240 mm Parallel side, a 50 mm shorter parallel side and a height of 90 mm. For the oblique sides this results a length of 130 mm. The diameter of the semicircular Groove should be 25-35% of the length of the oblique side, e.g. e.g. 40 mm. The center of the semicircular groove should be closer to the shorter parallel side and the Divide the oblique side approximately in a ratio of 1: 2. Thus it results e.g. a distance of the groove of 70 mm to the longer parallel side and a distance of 20 mm to the shorter parallel side.

Claims (14)

Mattress with a multi-part core made of elastic material, in particular a foam core (1), latex core or the like, in a cover and with one or more recesses (2, 3, 4) in the horizontal central region of the longitudinal section and with transverse to the lying direction in the Recess or the recesses (2, 3, 4) provided inserts (10, 11, 13) or inserts for locally changing the elastic properties of the mattress, the inserts (10, 11, 13) or inserts in the recess or Recesses (2, 3, 4) lie directly next to one another, characterized in that the inserts (10, 11, 13) or inserts extend over the entire width of the mattress and that the core, in particular foam core (1), has a top layer as edge layers (5) and has a bottom layer (6) which are held at a distance from one another by webs (7, 8, 9), which are preferably glued in, the hollow spaces between the recess or the recesses (2, 3, 4 ) for the inserts (10, 11, 13) or inserts. Mattress according to claim 1, characterized in that the inserts (10, 11, 13) or inserts are designed as cuboid or prismatic blocks, the cross-section of which corresponds in height and preferably also in width to approximately half the total height of the mattress. Mattress according to one of claims 1 or 2, characterized in that at least some inserts (10) or inserts are X-shaped in cross-section within a rectangular or cuboid outline. Mattress according to one of claims 1 or 2, characterized in that the inserts (13) or inserts have a cross section corresponding to an essentially equilateral triangle or an essentially equilateral trapezoid and the inserts (13) or inserts in the recess or the recesses are inserted rotated by 180 ° about the longitudinal axis, and that the webs (7, 8, 9) are adapted to the cross-sectional shape of the inserts (13) or inserts by inclined surfaces. Mattress according to claim 4, characterized in that the inserts (13) or inserts have a groove (14) on the oblique side surfaces. Mattress according to claim 5, characterized in that the grooves (14) are approximately semi-circular in section and have a diameter which corresponds to 25-35% of the length of the oblique sides of the trapezoid or triangle. Mattress according to claim 5 or 6, characterized in that the center points of the grooves divide the oblique sides approximately in a ratio of 1: 2, the shorter section facing the shorter parallel side of the trapezoid or the tip of the triangle. Mattress according to one of claims 1 to 7, characterized in that at least some of the inserts or inserts are designed as water-filled containers in an elastic covering. Mattress according to one of claims 1 to 8, characterized in that at least some of the inserts or inserts are designed as containers filled with a gel in an elastic covering. Mattress according to one of claims 1 to 9, characterized in that at least some of the inserts or inserts have a metallic overlay or insert or that metal foils are inserted or glued into the recesses of the mattress for the inserts. Mattress according to one of claims 1 to 10, characterized in that the top layer (5) and / or the bottom layer (6) has an opening, in particular a slot (12) for easier insertion or exchange of the inserts (10, 11, 13) or has inserts. Mattress according to claim 11, characterized in that the slot (12) can be closed by a Velcro fastener or the like. Mattress according to claim 11 or 12, characterized in that the areas of the top layer (5) or bottom layer (6) adjoining the slot (12) interlock positively. Mattress according to one of claims 1 to 13, characterized in that the inserts (10, 11, 13) or inserts can be fixed in position by means of Velcro pieces in the recess or the recesses (2, 3, 4).

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