EP2801296B1 - Single spring element of a mattress spring support - Google Patents

Description

The invention relates to a single spring element of a Matratzenunterfederung according to the preamble of the main claim.

It is known an adjustable single spring element of a sitting or lying furniture, EP 1 969 972 A1 , Which has a foot part, with which it can be arranged on a solid base of a sitting or lying furniture and which has an upper part with a support surface for a mattress and is equipped with a spring function part arranged therebetween corresponding to the upper part locking devices.

Although the support surface of the known single spring element can tilt sideways laterally on the bearing surface and also the spring rate of this single spring element can be adjusted easily, but can not be gone from an interactive suspension under the construction of this known single spring element. In addition, the rigid support surface prevents the possibility of producing different variants of mattress suspension.

Also known is a spring element as part of a pad for a mattress, DE 20 2005 003 749 U1 , From a separate foot and two crosswise arranged shell-shaped, double superimposed spring arms made of elastic plastic, with each end twisting locked thereupon bearing surfaces, which also tilt laterally tilting at one-sided load, but due to design without vorhebestimmte abutment of the spring arms no interaction of its opposite support surface can generate.

The object of the invention is to provide an interactive single spring element of a Matratzenunterfederung with the possibility of creating a large variety wealth available, which can realize a one-sided load bearing surface a large travel, but at the same time the adjacent bearing surfaces interactively should be able to generate increased support the stored mattress ,

The solution of this object is achieved in conjunction with the features of the preamble according to the invention from the characterizing features of the first protection claim, in particular the fact that the functional part has a concave with its ends upwardly extending rocker arch, the center tilted down about a pivot axis and means lateral support springs elastically supported on the lower part and further characterized in that in the region of the upper ends of the Wippbogens a connecting these supporting arch and torsionally elastic bearings for pivot pin of the upper part are designed as corresponding locking devices.

By a variation of the bearing surfaces as small separate Teilauflagerflächen, which are held with their pivot pin each in a torsionally elastic support of the spring function part or as partially or fully interconnected adjacent Teilauflagerflächen, a large number of possible spring variants of the inventive single spring element can be realized. Furthermore, the combination of different individual spring elements makes it possible to produce a large number of possible embodiments of a wide variety of mattress overlays and spring characteristics.

Furthermore, according to the invention, a foot part and one or more mutually parallel and spaced spring functional parts are made into a one-piece, made of plastic base, injection-molded in particular, so that the single spring element consists essentially of a lower part and an upper part.

According to a particularly preferred embodiment of the upper part of the single spring element, this may itself consist of a plurality of separate Teilauflagerflächen or of a single component composed thereof. The pivot bearing provides for small Teilauflagerflächen and their eccentric load an elastic restoring force, as well as it provides a contribution to this with a one- or two-piece shell. -

Advantageously, each Teilauflagerfläche is provided for a mattress or the like with a torsionally elastic bearing, wherein the Teilauflagerflächen each with are equipped a pivot pin and either either independently or in pairs per spring function part or side connected to each other or all Teilauflagerflächen are rigidly connected together to form a one-piece shell. This substantially extends the possible wealth of variants of the single spring element as well as the mattress springs which can be constructed therewith.

The tilting function of the Wippbogens takes place all the stronger, the smaller the Teilauflagerflächen were selected, the elasticity of the torsionally elastic storage ensures that the Teilauflagerflächen continue to lie flat under the mattress to be supported.

According to a particularly preferred embodiment of the subject matter of the invention, the region of the upper support arc arranged above the pivot axis of the lower luffing bow is likewise concave and has a downwardly extending spring travel limit stop which, under heavy loading and strong elastic deformation of the spring function part, is located on the luffing arch below Stop comes. As a result, it is achieved in an advantageous manner that at very high load of a single spring element after a predetermined travel a very strong stiffening of the spring function part can be done because after conditioning of the spring limit stop on the luffing bow and the support sheet is used for elastic spring work with.

In a further advantageous embodiment of the invention, in each case between two arranged on a spring function part and interconnected Teilauflagerflächen connecting surfaces are provided, each of which is provided with a recess as a guide for a function slide, which is formed positionable above or next to the support arc, thereby influencing the Spring properties of the spring function part and thus can be taken on the single spring element. In the positioned over the support arch state, the rocking function of the single spring element is virtually turned off, so that the spring function part from the beginning to a much higher Has spring stiffness, as if the function slider is positioned next to the support arc.

The function slider has a slide plate, under which a slider head is arranged on a slide neck. The guide in the connecting surface between two Teilauflagerflächen has an insertion opening for the slide head and an elastic collar with locking surfaces for there hindurchschiebbaren but then locked in the opposite direction slide neck. As a result, a simple assembly of the function slider is guaranteed and also made an effective captive available.

According to a further advantageous embodiment of the invention, the pivot bearing bolts of the elastic pivot bearing are divided in the middle and have a bottom open vertical longitudinal gap, the torsionally elastic bearing has a extending into this longitudinal gap extending extension and extending around a bearing pivot pin on both sides extending locking lips, the also form a mounting hopper for the pivot pin and are elastically spreadable to its mounting in the torsionally elastic bearing, whereupon the rotary lobe bolt is locked in a form-fitting manner in the pivot bearing.

In order to hold a positioner placed over a support slide in position, the support arch is preferably equipped with side beads that lock the slide head side and so easily secure against lateral displacement.

Fig. 1

eine räumliche Ansicht eines Einzelfederelementes mit einteiligem Oberteil in einer Explosionsdarstellung von schräg oben,

Fig. 2

eine Seitenansicht des Gegenstandes der Fig. 1 in Explosionsdarstellung,

Fig. 3

eine räumliche Darstellung eines Einzelfederelementes mit einem zweigeteilten Oberteil von schräg oben,

Fig. 4

eine geschnittene Vorderansicht durch ein Oberteil gemäß Fig. 3 von rechts,

Fig. 5

eine geschnittene Vorderansicht eines komplett montierten Einzelfederelementes gemäß Fig. 3 von rechts,

Fig. 6

eine räumliche Ansicht eines Einzelfederelementes mit einem vierteiligen Oberteil in einer Explosionsdarstellung von schräg unten,

Fig. 7

eine räumliche Darstellung eines Unterteils eines Einzelfederelementes von schräg oben,

Fig. 8

eine räumliche Ansicht eines Funktionsschiebers in vergrößerter Darstellung von schräg unten,

Fig. 9

eine räumliche Ansicht eines einteiligen Unterteils von schräg unten,

Fig. 10

eine räumliche Ansicht eines durch Krafteinwirkung verformten Einzelfederelementes gemäß Fig. 6 von schräg vorne, und

Fig. 11

eine Vorderansicht des verformten Einzelfederelementes gemäß Fig. 10.

Hereinafter, some embodiments of the invention are described in more detail with reference to drawings. Show it:

Fig. 1

a spatial view of a single spring element with one-piece upper part in an exploded view obliquely from above

Fig. 2

a side view of the object of Fig. 1 in exploded view,

Fig. 3

a spatial representation of a single spring element with a two-part upper part obliquely from above,

Fig. 4

a sectional front view through an upper part according to Fig. 3 from the right,

Fig. 5

a sectional front view of a completely assembled single spring element according to Fig. 3 from the right,

Fig. 6

a spatial view of a single spring element with a four-part shell in an exploded view from below,

Fig. 7

a spatial representation of a lower part of a single spring element obliquely from above,

Fig. 8

a spatial view of a function slider in an enlarged view obliquely from below,

Fig. 9

a spatial view of a one-piece lower part of obliquely below,

Fig. 10

a spatial view of a deformed by force single spring element according to Fig. 6 from diagonally forward, and

Fig. 11

a front view of the deformed single spring element according to Fig. 10 ,

The single spring element consists of a lower part 1, an upper part 2 and a functional slide 3, wherein the lower part 1 is formed from a foot part 4 for placement on a fixed base and two parallel and spaced from each other spring functional parts 5, with which it is injection molded in one piece is, wherein such a spring function part 5 is a concave Wippenbogen 6, with a lower central pivot axis 7 and lateral support springs 8, which are supported as the luffing bow 6 with the pivot axis 7 on the foot part 4. At the upper ends of the concave Wippbogens 6 two torsionally elastic bearings 10 are arranged, each having a centrally upwardly extending projection 24 inside, as well as lateral locking lips 25, which also form an insertion funnel, in which a pivot pin 14 of the bearing surfaces 11 can be used, wherein a pivot bearing pin 14 has a vertical longitudinal gap 23, in which engages the extension 24 of the torsionally elastic bearing 10 in the mounted state. After assembly, the locking lips 25 surround the pivot bearing pin 14 and lock it form-fitting in the torsionally elastic bearing 10th

Between the individual Teilauflagerflächen 11 of the upper parts 2 of the embodiments according to the FIGS. 1 . 3 and 9 connecting surfaces 30 are provided, which are each equipped with a recess 20 designed as a guide for a function slide 3, wherein such a function slide 3, as in Fig. 8 shown, a slide plate 15 and a downwardly extending therefrom slide head 16 on a slide neck 17, which are inserted into the insertion opening 19 of the recess in the connecting surface 30, wherein between the insertion opening 19 and the guide 20, an elastic collar 18 with locking surfaces for the pushed there, but locked by the locking surfaces in the opposite direction slide neck 17 are provided.

In a position of the function slider 3 above the support bow 13, a tilting movement of the spring function part 5 of the single spring element is locked, whereas in a second position of the function slider 3 next to the support sheet 13 a rocking movement of the concave rocker arm 6 of the spring function part 5 is possible.

The support arc 13, which is also concave in the central region, there has a downward Federwegbegrenzungsanschlag 9, the at a strong force above the central pivot axis 7 of the concave rocker arm 6 comes to rest and then the spring rate of the spring function part 5 hardens strongly.

The single spring element can be equipped with different upper parts 2 and, for example, consist of four separate Teilauflagerfläche 11, as shown in the FIGS. 6 . 10 and 11 is shown, or as in Fig. 3 shown, from two separate Teilauflagerflächen 11, each composed of two interconnected Teilauflagerflächen 11 or also, as in the Fig. 1 and 9 is shown to be formed completely in one piece, wherein in this embodiment all Teilauflagerflächen 11 are connected by common connecting surfaces 30 with each other.

Zeichnerisch not shown, but encompassed by the scope, are single spring elements with three or more spring function parts 5 on a foot part 4 and a correspondingly increased number of possible Teilauflagerflächen eleventh

Claims (8)

1. Individual spring element of a mattress-underspring arrangement, made up of a foot part (4) for arranging on a fixed substructure, of an upper part (2, 12; 22) with a bearing surface (11) for a mattress and of a spring-function part (5) which is arranged between the foot part and the upper part and has latching devices which correspond with the upper part (2; 12; 22), wherein the spring-function part (5) has a curved rocker (6), which has its ends extending concavely upwards, characterized in that the curved rocker (6) extends downwards in the centre and, there, is supported elastically on the lower part (1) by means of lateral supporting springs (8) and such that it can be tilted about a pivot axis (7), and in that a curved support (13), which connects the ends of the curved rocker, and rotationally elastic bearing means (10) for rotational bearing bolts (14) of the upper part (2; 12; 22) are formed, as corresponding latching devices, in the region of said ends of the curved rocker, and in that a foot part (4) and one or more parallel and spaced-apart spring-function parts (5) are injection moulded from plastics material to form a single-piece lower part (1).
2. Individual spring element according to one of the preceding claims, characterized in that each rotationally elastic bearing means (10) equipped with a rotational bearing bolt (14) carries a bearing subsurface (11) for a mattress, and all the bearing sub-surfaces (11) are independent of one another or are connected to one another in pairs for each function part (5) or each side or, for each individual spring element, all the bearing sub-surfaces (11) are connected together and together form the upper part (2; 12; 22).
3. Individual spring element according to either of the preceding claims, characterized in that the curved support (13) is of likewise concave design in the region above the pivot axis (7) of the lower curved rocker (6) and has a downwardly extending spring-travel limiter (9) which, in the case of pronounced loading and pronounced elastic deformation of the spring-function part (5), ends up in abutment against the curved rocker (6).
4. Individual spring element according to one of the preceding claims, characterized by the provision, between two bearing sub-surfaces (11) connected to one another on a spring-function part (5), of a connecting surface (30), with a guide (20), in the form of an aperture, for a function slide (3), which is guided in said aperture-forming guide and is designed such that it can be positioned over or alongside the curved support (13).
5. Individual spring element according to Claim 4, characterized in that the function slide (3) has a slide plate (15), beneath which a slide head (16) is arranged on a slide neck (17), and the guide (20) has a widened introduction opening (19) for the slide head (16) as well as an elastic collar (18) with latching surfaces for the slide neck (17), which can be pushed through the collar (18) and locked thereby in the opposite direction.
6. Individual spring element according to one of the preceding claims, characterized in that a rotational bearing bolt (14) is split in the centre and has a vertical longitudinal gap (23) which is open in a downward direction, and in that the rotationally elastic bearing means (10) has, on its inside, an elastic extension (24) which extends into the longitudinal gap (23), and locking lips (25) which extend on either side around a rotational bearing bolt (14) mounted therein, form an installation funnel and can be spread open elastically by the rotational bearing bolt (14) in order for the rotational bearing bolt (14) to be installed in the rotationally elastic bearing means (10).
7. Individual spring element according to Claim 4, characterized in that the tilting movement thereof is locked when the function slide (3) is positioned above the curved support (13), and the spring-function part (5) as a whole elastically absorbs forces acting on it.
8. Individual spring element according to one of the preceding claims, characterized in that the curved support (13) has side beads (28), by means of which the slide head (16) is retained in a position in which it is locked above the curved support (13).

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