DE6922054U - UPHOLSTERED BODY MADE OF COARSE FLAKE COMPOSITE, mainly mattresses and bed pads - Google Patents

Description

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The subject of the innovation are upholstered bodies, primarily mattresses, the core of which is made of coarse, curly, high-pore-sized Kujist foam and flockon composite.

Upholstered bodies have been known for a long time which consist entirely or primarily of latex or synthetic foam. Although these foams are porous and air-permeable when unpolluted, the air-permeability is reduced so much that an uncomfortable build-up of heat arises.

In order to increase the air permeability, more or less large recesses were made on the underside or in the interior, but this made the compressibility so great that it no longer corresponded to the intended use. You were forced to install springs. Compare as examples CM I650638, AS Io4o211, GM 174o953, GK 1 95162 ^. However, these springs offered such a small contact area for the foam on top that it was quickly rubbed and thus unusable. In addition, this procedure was associated with a lot of work.

Attempts have been made several times to achieve the lack of air permeability by using a conventional pen cover which is covered with a sheet of foam. Compare e.g. B. DGM 1 731 630. To make it even stronger 7.W , the foam body was provided with caverns, wi ·. they were already known from latex foam (see Fig. for GM 1 731 630).

Ultimately one tried to get closer to the goal only with hollow rubber bodies; compare French U.S. Patent 75,737.

L) .. so that the desired goal was not achieved, one makes polaterbodies with large and many recesses 1 but with foam of higher density. (See GM 1 69'i, 7> - 1 8 ^ 2 033, 323, 1 8't7 535, 1 887 872 and AS 1 oll lLio .;

Upholstered bodies have also become known where '

evenly distributed, rinnon-shaped depressions on one of the two surfaces should promote ventilation (AS 1 079 Öo6).

All of these constructions were so laborious that they found no market. Finally, it should be mentioned that they wanted to replace the spring core with a core made of cotton wool, kapok or seaweed covered with foam (DP 864

Swiss patent 416 ylik suggested placing a filling of plastic grains (styrofoam) between resilient foam cover material.

Mattresses and other upholstered bodies that had a core made of relatively solid flake composite material, which was covered on both sides by homogeneous foam sheets, appeared on the market at a loss. This Verburidmaterial is very poorly air-permeable, since it consists of crushed waste material, the 6 - 10 mm large flakes of which are wetted with foam reagents and then compressed to a relatively high density. The cells forming the foam are deformed in such a way that air can only flow through under pressure. Such cushion bodies in no way meet the requirements that must be made of an air-permeable cushion body.

It has now been found, surprisingly, that composite material consists of very coarse flakes mixed with a smaller proportion. fine flakes, which are wetted as a binder with Schiiuinrcagenzieri or a similar adhesive, meets all the requirements that can be placed on an upholstered body such as a mattress if the conventional manufacturing process is changed. It must be ensured that the voids between the coarse flakes remain largely in order to obtain a high level of air permeability.

While in the conventional flocked composite it was tried to fill all the cavities between the (luoinon) flocks with fresh foam and to achieve a good bond by pressing the material just joined, according to the invention, the fine flocks are initially well sprayed with foamable binder in the eddy current process and then are

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The coarse flakes are poured into the tfirbclkaual, briefly mixed with ucii bi'iiftzicn fine flakes ϊΐιη.ϊ, ς and tl.imi tossed into an Illockidrüi i'iusgts, leveled and through a press
briefly compressed so that the stronger binder in the fine flakes changes over to the less wetted coarse flakes. Then the pressure is reduced so that the flakes are almost back to their original size
expand. The freshness that forms on the fine flakes can expand into the cavities, but would not be able to fill them, because the amount of the Schaunireagoncia taken up
not sufficient for this, but sufficient to create a good bond between the flakes. But they are only foam bridges
arose between the flakes, between which there was enough
large cavities ensure good air permeability.

In addition, the composite material obtained in this way has a significantly lower structural weight and thus also a lower compressive strength. It comes very close to homogeneous block material, but has a much better air permeability. The annoying build-up of heat is thus avoided.

The so obtained lock material can be used in a known manner
Plates of any thickness can be split · Of course, these mixed flakes can also be pressed into three-dimensional shapes and allowed to harden, and then you get upholstery of any shape.

The new composite material is particularly well suited for the manufacture of mattresses and mattresses. Some embodiments are shown in the accompanying drawings. All figures represent cuts through flat or curved ones
Mattress body.

With 1 the mattress core made of Gi-obflockenverbund is referred to, with 2 the cover by homogeneous foam sheets.

In Figure 1 is the on core 1 and cover;. ',?; 2 existing Polsterkörpoi on the support surfaces again laminated with a fleece 3 made of wadding, wool or man-made fibers and encased in the usual way by a drill cover ^l i . Pos. 3 and ^l i is in the other representations of the overview

In Fig. Ii the grain 1 is cambered.

In fig. 3 it is shown how a friccation 5 in fig. 3b ciiK ¹ rounded test edge is created.

In Kig. h xxt the grain 1 plane-parallel and the üchaunistoff cover 2 profiled arched on the sides, which is simpler and cheaper than the embodiment according to Fig. 2. Between

The core and cover is a pressed pile 8 made of rubber hair or Gum coconut or chemical fiber incorporated for better To achieve load sharing. This Pießflor can of course

can also be incorporated into the other explanations.

In Fig. 5 it is shown that the curvature also by a Intermediate layer 9 can be achieved, while all other parts

plcin parallel.

Because all upholstery bodies show a certain permanent deformation in the course of time, the curvature of the body on the main load-bearing parts is completely lacking, although the coarse flake composite has so far shown this property less.

It can work technically. be beneficial and beneficial in use, to effect the padding of the coarse flake core by quilting the padding with the cover fabric.

As a result, the upholstery fabric retains its good appearance for longer slipping of the cover fabric is reliably avoided.

692205

Claims (1)

Expectations Upholstered bodies of all kinds, but mainly mattresses and ι Lying pads, characterized in that they ^! 1. have a highly porous core (l) made of chemically bonded coarse flakes of foam, which is optionally covered by a homogeneous foam panel (2) and a cover fabric (k) , optionally also has a lamination (3) made of wadding, wool or chemicals ) 2. Upholstered body according to claim 1, characterized in that that the lamination (3) of the core (l) with the cover fabric (4) is quilted, 3 · Mattress or overlay according to claims 1 and 2, characterized in that it is plane-parallel or curved by the shape of the core (1) or the cover (2) or by an insert (3) « 4. mattress or mattress according to claim 1 to 3 * thereby characterized in that the circumferential edges are milled out (5) and by the tension of the drill cover or upholstery fabrics (4) are strongly compressed, 5. Upholstered body according to one or more of claims 1 to 4, characterized in that the core (1) consists for the most part of chemically bonded coarse flakes of foam, between which a smaller proportion of fine flakes wetted with foam-forming binders is stored, the fresh foam of which creates the bond , but only partially fills the cavities.