DE2924662A1 - SHAPED FOAM UPHOLSTERY PILLOW - Google Patents

Description

de surface (seat, backrest) with molded elevations equip the same design and size.

The former manufacturing processes are cumbersome and wage-intensive. The last-mentioned procedure is much more rational; an optimal adaptation to the human body is by no means given. The aforementioned upholstery cushions occur under load always indentation deformations, d. i.e., in addition to the directly loaded areas - e.g. B. in automobile seats through the thighs of the passenger - and also the unloaded neighboring areas through lateral kinking Deformed tensile stresses. This means that it is not possible to set the desired local differences in hardness.

The object of the invention is that an upholstered cushion is found that is appropriate for the body and for the use has optimal indentation hardness characteristics.

This is achieved according to the invention in that

a) the elevations with the actual pillow consist of one piece and

b) There are groups of elevations of different geometry.

This ensures that the surveys are carried out simultaneously can be foamed with the upholstery during the foam molding process and that, for example, with seats in the Elevations of a different geometry can be provided in the area of the buttocks than in the area of the less stressful areas Thigh. As stated above, the elevations can have a wide variety of designs.

Size and height are also of particular influence.

Le A 19 749

030063/0058

BAYER AKTIENGESELLSCHAFT 5090 Leverkusen, Bayerwerk

Central area Mr / RBg

Patents, trademarks and licenses June 18, 1979

Molded foam cushion

The invention is directed to a foam-molded cushion, the surface of which has elevations in the form of cylinders, cones, truncated cones, pyramids, truncated pyramids, spherical caps, cuboids, prisms, ribs and
has the like.

Such upholstery cushions are used in the furniture sector and, above all, in the vehicle sector.

To achieve a comfortable and body-appropriate upholstery quality is the choice of the right indentation hardness-Character-IQ of vital importance.

Attempts have therefore been made to glue block foam blanks with different compressive strengths. Another solution was to foam or foam around prefabricated molded parts.

Another known possibility is to work out recesses that are separate from one another, whereby by reduction of the load-bearing foam volume, a reduction in hardness in some areas of upholstery elements is achieved became.

After all, it is already known during manufacture

of upholstered cushions by foaming the

Le A 19 749

030063/0058

ORIGfNAL INSPECTED

- r-

Used to manufacture the foam-molded cushion a reaction system, for example polyurethane foam high indentation hardness. The areas of the cushion that are to be made softer are obtained by dimensioning the knobs accordingly. It can be used in this way upholstered cushions with increasing produce different hardnesses, in which the transition from one degree of hardness to the other is almost stepless can be adjusted.

Further advantages of the upholstery cushion according to the invention can be seen in the fact that you can no longer see the bumps after attaching the cover and that even in the burdened Condition as a result of the open spaces between the elevations, a considerable improvement in air-conditioning Sitting comfort is given.

The upholstery cushion according to the invention is shown in a drawing shown using the example of an automobile seat and explained in more detail below. Show it:

Fig. 1 the pillow in plan view and

Fig. 2 shows the cushion in section along line A-B in

Fig. 1.

The upholstery cushion 1 has side reinforcements 2, between which the actual seat surface 3 extends. This seat 3 has three groups 4, 5, 6 of frustum-like Elevations 7 of different sizes and heights covered.

Le A 19 749

030063/0058

Claims (1)

Claim Form-foamed upholstery cushion, the surface of which has elevations in the form of truncated cylinders, cones, truncated cones, Pyramids, truncated pyramids, spherical caps, cuboids, prisms, ribs on and / or on, characterized in, that a) the elevations (7) with the actual cushion (1) consist of one piece and b) Groups (4, 5, 6) of surveys (7) of different types Geometry are present. Le A 19 749 030063/0058