DE9012069U1 - Pocket spring core - Google Patents

Description

The invention relates to a pocket spring core with a plurality of parallel chains of pocketed springs, each chain having a continuous row of springs which are tightly covered by a cloth-like covering and connected to one another by this, the pockets of a chain thus formed having transverse connecting seams for delimiting the springs which are directed parallel to the longitudinal axes of the springs, and the adjacent chains are also mechanically connected to one another.

Such pocket spring cores are known, for example, from EP O 154 076 Bl.

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parallel chains are connected to each other by means of adhesive. Pocket spring cores are also known from the state of the art, in which
a mechanical connection is made by means of continuous/connecting threads.

The use of adhesive is disadvantageous in that on the one hand additional material, namely the
Adhesive must be used and on the other hand application devices for the adhesive must be provided as well as waiting times for the curing of the
The mechanical connection systems known to date require considerable expenditure on equipment,
In addition, the arrangement of connecting threads
both in production and in
Further processing of the 5-pin spring core is disadvantageous.

Based on the current state of the art, the
invention is based on the task of creating a pocket

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li'ilerkcrii y, &eegr; t &igr;. &agr;&pgr; % s ge ma (Jc r Art. to slacken, I".'&igr;. the (lie connection d" r ben;i(_ h IM rt of chains without external transducers &igr;,&iacgr;&Igr; takes place.

To solve this problem , the invention proposes: "because the chains in the area of the connecting wires extend over half the chain height, each one to the flowing edge."; open slots on the chain. where i s<· &eegr ; , that in each case a first number of chains with' rectified slots':, at a distance from each other &eegr; a &eegr; which are arranged in parallel, since a large number of chains are arranged at right angles to the first number of chains, parallel to and at a distance from each other, the slots of which are aligned in the same direction as each other, but opposite to the slots of the first number , and that the first and second number of chains are arranged with interlocking slots in rows and columns, the distances formed between parallel rows being formed by elements of the second AP number of chains inserted into the gaps of the elements of the first number of chains.

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filled in so that the elements of each subsequent -ei ie or column are staggered from one another.

With the design according to the invention, it is only necessary to provide the slots in the area of the chain seams. These slots formed in this way can then be arranged in rows and columns at right angles to one another and, with interlocking slot areas, bring about the direct connection of the pocket spring core without additional material. It is therefore not necessary to use adhesive joints, welded joints, seam joints, clamp joints or the like. *

The inventive

Training creates a spring core in which the :\

Chains at relatively tight." Pack of the bagged rj

I springs are arranged in rows and columns, whereby the chains are connected to one another to form the ink spring core exclusively by overlapping the slot areas. In this way, an exact external dimensional accuracy of the

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The spring core is thus achieved without the springs being pushed together in length and width, as the position is precisely fixed by the insertion slots formed in the vicinity. In addition, a close surface area with ¹ pocketed springs is achieved, which leads to a high stability of the spring core. In addition, a high degree of hardness of the pocket spring core is achieved, ^which was previously only achievable with the state of the art technology by using a higher wire thickness of the spring elements.

A preferred further development is seen in that a double connecting seam is formed between the pocketed springs of a chain and the insertion slot is formed between these connecting seam pairs.

This ensures that when arranging the separating slots the connecting seam is not severed, which could lead to

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&ugr; e s w e&igr; ' e r e&igr; it may be advantageous that between

each connecting seam pair of a chain »in web of

d « m U m h ü ] 1 u &eegr; g s m a t e r i a 1 of the g ·..-1 a ? ~ h t e &eegr; springs are formed.

An embodiment of the invention is shown in the drawing and described in more detail below.

It shows :

Fig. 1 A pocket spring core according to the invention. In view;

Fig. 2 also in side view; Fig. 3 a detail in enlarged view

Fig. 4 shows another detail in isometric view.

The pocket spring core 1 consists of a multitude of parallel chains 2, 3 of pocketed springs,

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whereby each chain 2, 3 has a continuous row of springs 4, which are tightly covered by a cloth-like covering and are connected to one another by arches. The pockets of a chain 2, 3 thus formed have transverse connecting seams 5 to delimit the springs 4. These connecting seams 5 are directed parallel to the longitudinal axes of the springs 4. The adjacent chains 2, 3 are mechanically connected to one another. For this purpose, the chains 2, 3 have insertion slots 6 in the area of the connecting seams 5, which extend over half the chain height and are each open to the same edge. A first number of chains 2 are arranged with slots 6 in the same direction at a distance from one another, parallel to one another, while a second number of chains 3 are arranged at right angles 7 to the first number of chains 2, parallel to and at a distance from one another. Their slots 6 are also aligned in the same direction, to

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the slots 6 of the first number but running in opposite directions . The first and second number of chains 3 are arranged in rows and columns with interlocking slots 6, as can be seen in particular in Figure 1. The spaces formed between the parallel rows or 3 are filled by elements of the second number of chains inserted into the gaps between the elements of the first number of chains 2. In this way, the elements of each following row or column are arranged offset from one another. In order to avoid the springs U being exposed in the slot area when the slots are formed, i.e. no longer being completely enclosed by the pocket, the connecting seam 5 can be designed as a double seam, with the insertion slot b being formed between these connecting seam pairs. If this is necessary for dimensioning reasons, a web made of the surrounding material can be inserted between each pair of connecting seams 5 of a chain 2 or 3.

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&bull; *' 1 &igr; · · · · · *
.* · · - ^: : : * *·:: *· the pocketed wrapping material forms his. Springω -*<· out-

My invention, 2IJ &diams;- an extremely simple system for the production of ' .? grinding cores for laying, in which all aids for forming the connection can be dispensed with.

The invention is not limited to the exemplary embodiment but is variable in many ways within the scope of the disclosure.

All new individual and combination features disclosed in the description and/or drawing are considered essential to the invention.

Claims (2)

Schlaraffia 10075/90 ■ '* - 10 - Protection claims: 1. Pocket spring core with a plurality of parallel chains of pocketed springs, each chain having a continuous row of springs which are tightly covered by a cloth-like covering and are connected to one another by this, the pockets of a chain thus formed having transverse connecting seams for delimiting the springs which are directed parallel to the longitudinal axes of the springs, the adjacent chains being mechanically connected to one another.d, characterized in that the chains (2, 3) in the area of the connecting seams (5) have insertion slots (b) which extend over half the chain height and are each open to the same edge, that a first number of chains (2) with identically directed slots (6) are arranged parallel to one another at a distance from one another, Schlaraffia 10075/90 -11- are arranged ^such that a second number of chains (Z) are directed parallel to the first number of chains (Z) and are arranged running along them; -;in that the slots (b) are equidistant to one another, but opposite to the slots ('' of the first number, and that the first and second number of chains (2, 3) are arranged with one in the engaging slots (6) in 7 rows and columns, the spaces formed between parallel rows being filled by elements of the second number of chains (3) inserted into the gaps between the elements of the first number of chains (2), so that the elements of each subsequent row or column are arranged offset from one another. 2. Pocket spring according to claim 1, characterized in that a double connecting seam (5) is formed between the pocketed springs (4) of a chain (2, 3) and the insertion slot (6) is formed between these connecting seam pairs. Schlaraffia 10075/90 . Bags., ederk <i rn according to claim _', characterized in 1 &ldquor; U a- Ji-O ~ . . -; I -:_.J U Lj.. J .. i. .-.__. &Lgr; «-ti IIUCI., HOI· i.«13tllCll J &Ggr; U &Ggr; HI 'CI ULIIUUIIgDIIdIIL[JdCJI (, -, ) of a chain (2 or 3) a web is formed from the covering material of the linked springs (4).