DE102008036667A1 - Box spring core for use in mattress, has couch surface whose region is provided with elastic covering layers which are connected with springs, where springs are covered by covering layers - Google Patents

Abstract

The spring core has springs (1) arranged one behind the other in a row and forming spring threads (2), which are connected with each other and together form a couch surface. The spring threads are inserted into a box, which is made of textile material. A region of the couch surface exhibits different suspension characteristic compared to adjacent regions of the couch surface. The region is provided with elastic covering layers (3), which are connected with the springs. The springs are covered by the covering layers, which exhibit different thicknesses.

Description

The The invention relates to a pocket spring core according to the preamble of Claim 1.

Around to improve the sleeping comfort of mattresses with such a Spring core are fitted, Become areas of the spring core with springs of different spring behavior or different-hardening provided, whereby in use certain parts of the body in relation to other softer or harder cushioned.

to Realization of these zones are different measures known. For example, spring cores are used in which the same long springs are arranged at different heights, so that when you hang up first softer and subsequently a harder Suspension results.

Further are springs for varying the spring rate used, the spring constant is different from each other Distinguish wire diameter or by changing the number of turns. Also has already been proposed, by a selection of different Material properties to produce a correspondingly changed spring behavior, as well as by a sidecut of the individual feathers.

Usually extend the changed in their spring characteristic Feathers of an area over the entire width of the spring core, this width being the length of a Federstrangs determined, of which several, parallel to each other are combined into one area.

to Manufacture of the pocket spring cores machines are used the for the manufacture of pocket spring cores are designed that are no different Have zones. Here are the prefabricated spring strands in their Length determined of the length of the pocket spring core, d. h., The individual springs are the length of Pocket spring cores in series after each other and are so with the next Spring strand connected in said machine, preferably glued, by enveloping the individual springs enveloping pockets quasi bellies be connected by an adhesive seam.

at the production of the zoned pocket spring cores, however, results that, as mentioned, the spring strands determined by the width of the pocket spring core, d. h., the to a pocket spring core zusammenzufügenden spring strands are here considerably shorter as with the non zoned pocket spring cores.

There, As described, the manufacturing machines that hold the spring strands together to be glued for the length are designed such a non zoned pocket spring core, is their production capacity not exhausted.

In As a consequence, this means that the zoned pocket spring core disproportionately expensive in its manufacture is.

Of the Invention is therefore the object of a pocket spring core of the generic type to develop further so that it is more efficient and thus more cost-effective can be produced.

These Task is accomplished by a pocket spring core with the characteristics of the Claim 1 solved.

By the invention can be applied to the production of single springs with different Federcharakteristik be waived, since a changed Suspension behavior of a predetermined range not by different Springs, but by a block of the area so to speak achieved by the inventive application of an elastic Covering is achieved on the predetermined range.

Thereby let yourself achieve a very efficient production of the pocket spring core, this being in its entirety initially as pocket spring core without Areas with different suspension behavior is produced, as described in the prior art. Only then is an application one or more cover layers, according to customer requirements.

D. h., the spring strands are now determined by the length of the spring core, reducing the capacity of the machine with which the spring strands be connected to a spring core, fully exploited. In the In practice, this means that a pocket spring core according to the invention in almost half of the Time can be produced, as is the case with a generic pocket spring core previously possible.

To Another idea of the invention is provided for the whole Pocket spring core to use the same springs. In principle conceivable is also different when needed in certain areas Use springs, for example, as edge reinforcement, although the corresponding spring strand in its entirety with respect to one other spring strand is equipped with different springs.

In addition to the manufacturing advantages that lead to a much cheaper production of the pocket spring core is particularly apparent emphasize that the design diversity of the new pocket spring core is much easier to implement. D. h., The production of desired areas with different suspension behavior can be realized with very simple measures.

So can If necessary, several areas can be provided, upper and / or lower side, Here, the width of the cover layers are also different can be like the length.

Conceivable is also, in their elastic behavior different cover layers use, which also affects the suspension behavior each covered area can be taken.

there the different elastic behavior can be achieved by a corresponding selection of different materials and / or different material thicknesses.

Further advantageous embodiments of the invention are characterized in the subclaims.

One embodiment will be described below with reference to the accompanying drawings.

The single figure shows a schematically illustrated pocket spring core according to the invention in a plan view.

In the figure, a pocket spring core is shown, which consists of a plurality of springs each mounted in a bag made of flexible, preferably textile material 1 consists. Several such springs 1 are arranged in a row one behind the other and thus result in a spring strand 2 ,

Usually, such a pocket spring core in plan is rectangular, with the spring strands 2 of which several are connected side by side, preferably by gluing, defining the longitudinal extent of the pocket spring core, while the width of the pocket spring core is defined by the abutting single springs 1 is determined. These connection areas are denoted by the reference numeral 4 Mistake.

The distances with which the individual springs 1 a spring strand 2 are arranged to each other, are determined by webs 5 , which are formed from the textile material, with which the individual springs 1 are enveloped, with the webs 5 be formed by, for example, welding two layers of the textile wrapper.

The spring strands 2 in their entirety together form a lying surface, which in the present embodiment has two areas which are different in their suspension retention with respect to the adjacent areas.

This different suspension behavior is achieved by the support and connection of a cover layer 3 with the underlying single feathers, each covering layer 3 extends over the entire width of the pocket spring core, but are different in width in the direction of the longitudinal extent.

This results in a different suspension behavior in the of the outer layers 3 reached covered areas.

Of course, this arrangement of the cover layers 3 only to be seen as an example and is, as already described, quite variable.

Claims (7)

Pocket spring core, consisting of a variety of springs ( 1 ), of which several in a row arranged one behind the other, each in a preferably formed of textile material pocket, a spring strand ( 2 ) and a plurality of juxtaposed spring strands together forming a lying surface ( 2 ), wherein at least one region of the lying surface is different in its suspension behavior with respect to the adjacent regions, characterized in that the at least one region with an elastic covering layer ( 3 ) provided with the springs ( 1 ) connected is. Pocket spring core according to claim 1, characterized in that the springs ( 1 ) of all spring strands ( 2 ) are the same. Pocket spring core according to claim 1 or 2, characterized in that on the top and / or bottom of the pocket spring core one or more, identical or different cover layers ( 3 ) are provided. Pocket spring core according to one of the preceding claims, characterized in that the cover layers ( 3 ) extend over the entire width of the lying surface. Pocket spring core according to one of the preceding claims, characterized in that the cover layers ( 3 ) are different in thickness. Pocket spring core according to one of the preceding claims, characterized in that the cover layers ( 3 ) from different elasti materials. Pocket spring core according to one of the preceding claims, characterized in that the cover layers ( 3 ) with the spring strands ( 2 ) are glued in the covering area.