EP3984414B1 - Suspension for upholstered furniture and bed with such a suspension - Google Patents
Suspension for upholstered furniture and bed with such a suspension Download PDFInfo
- Publication number
- EP3984414B1 EP3984414B1 EP21200643.1A EP21200643A EP3984414B1 EP 3984414 B1 EP3984414 B1 EP 3984414B1 EP 21200643 A EP21200643 A EP 21200643A EP 3984414 B1 EP3984414 B1 EP 3984414B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spring
- carrying means
- slats
- suspension
- suspension according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000000725 suspension Substances 0.000 title claims description 95
- 230000009975 flexible effect Effects 0.000 claims description 42
- 125000006850 spacer group Chemical group 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 210000001624 hip Anatomy 0.000 claims 1
- 238000005452 bending Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 5
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000011151 fibre-reinforced plastic Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004841 bisphenol A epoxy resin Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
- A47C23/002—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases with separate resilient support elements, e.g. elastomeric springs arranged in a two-dimensional matrix pattern
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
- A47C23/06—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using wooden springs, e.g. of slat type ; Slatted bed bases
- A47C23/062—Slat supports
- A47C23/063—Slat supports by elastic means, e.g. coil springs
- A47C23/064—Slat supports by elastic means, e.g. coil springs by elastomeric springs
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
- A47C23/06—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using wooden springs, e.g. of slat type ; Slatted bed bases
- A47C23/062—Slat supports
- A47C23/068—Slat supports with additional supports between the ends of the slats
Definitions
- the invention relates to a spring base for upholstered furniture with a frame and a number of spring slats spanning the base area bordered by the frame and held on two opposing bars of the frame in a juxtaposition, of which at least two are attached as bearing spring slats directly or with the interposition of spring slat holders to the spars are connected, between which two spring slats at least one spring slat not supported on the spar side is arranged, the spring slat group formed from the two spring slats and the at least one spring slat arranged between them being connected by suspension means extending between the end sections of these spring slats.
- a spring base can be designed as a slatted frame.
- a slatted frame includes a frame and a number of slats.
- the spring slats span the base area bordered by the frame.
- the frame is formed by two longitudinal bars and two transverse bars, the longitudinal bars determining the length of the slatted frame and the transverse bars determining the width of the same.
- the slats span the base of this frame parallel to the crossbars. The spring slats are thus held on the opposite longitudinal beams with such a sprung base.
- the slats of such a slatted frame determine the suspension comfort.
- Slats made of wood or composite materials are used as slats.
- double spring slats are sometimes also used, which are arranged in a stacked arrangement relative to one another.
- the two slats of such a double slat are held together by two cuffs enclosing them. These are in the longitudinal direction of the slats displaceable in order to be able to set the compression hardness of such a spring strip in this way. If these hardness adjustment slides are more in the middle area of the slats, the deflection behavior is softer than if they are in the outer areas of the slats.
- the slats can be connected directly to the spar.
- the spring slats are in many cases connected to the bars of the frame with the interposition of spring slat holders.
- the slat holders are made of or at least with the participation of elastomeric materials, so that they are involved in the compression work.
- Spring slat holders also allow the spring slat carried by them to be adjusted over a few angular degrees about a pivot axis running below the spring slat. Due to the elastomeric components of such a spring strip holder, it resumes its original position after being adjusted by a load.
- zones can be provided within the lower spring area that react more softly than others in terms of their deflection.
- softer zones are typically located in the shoulder area and/or in the hip area.
- EP 2 392 232 B1 proposed to arrange at least one spring slat not connected to the spars between two spring slats connected to a spar, hereinafter referred to as support spring slats.
- This at least one spring slat is connected to the two bearing spring slats with suspension means and is thus carried by them.
- an elastic element arranged between two adjacent spring slats is used as the support means. This is elastic in the direction of its longitudinal extension and in the transverse direction.
- the suspension spring slats are connected to the spars of the frame in such a way that they are perpendicular to the spar and parallel to the longitudinal extension about an axis are pivotally mounted on this female connector. Since the spring slats arranged between two support spring slats are not supported on the spar side, their deflection behavior depends on the elastic elements connecting them. Although the deflection behavior of these spring slats depends on the design of the elastic elements, it is typically significantly softer than the deflection behavior of the supporting spring slats carrying these spring slats.
- each spring slat requires an end support element to which the intermediate elastic element is connected. Since it is known that the original elasticity of elastomers decreases over time, it would also be desirable to build on this EP 2 392 232 B1 previously known concept with respect to its deflection behavior more permanent spring support could be provided.
- Another generic base is already from the DE 20 2013 007446 U1 known.
- the invention is therefore based on the object of further developing a spring base of the type mentioned at the outset in such a way that not only does the deflection behavior remain the same over a longer period of time, but it is also easier to manufacture and assemble and in which the possibility consists in influencing the deflection behavior of the at least one spring slat held by two support spring slats with simple means.
- each support means is elastically flexible, but has high tensile strength and extends from the first support spring strip via the at least one spring slat carried by this extends to the second spring slat and in which the spring slats connected by the suspension element each have a suspension element guide in which the suspension element is guided so that it can be displaced in the direction of its longitudinal extent and is held in a form-fitting manner in the radial direction relative to the suspension element.
- the suspension element has tensile strength in the direction of its longitudinal extension and is elastically flexible in the transverse direction. that means: flexible.
- This suspension means can thus be bent in the transverse direction to the longitudinal extension and, due to its elastic, flexible property, automatically returns to its starting position after the end of the loading situation, and thus also the spring slats carried by it.
- this support means is typically located in the area of the longitudinal end sections of the slats, is mounted in the first and second slats and extends continuously between them and thus also over the slats located between the two slats.
- each spring slat has a suspension element guide.
- the support means is guided in a longitudinally axial direction.
- the suspension element can therefore be moved in such a suspension element guide in the direction of its longitudinal extent.
- the suspension element In the suspension element guide, the suspension element is held in a form-fitting manner in its radial direction and thus in and against the deflection direction. This means that the suspension elements cannot be separated from such a suspension element guide in the radial direction.
- suspension element guides that are not closed circumferentially, this means that the opening following the longitudinal extent has a smaller opening width than the diameter of the suspension element.
- the spring slats are thus captively connected to the suspension element in the transverse direction.
- the cross-sectional geometry of the suspension element guide does not have to correspond to the cross-sectional geometry of the suspension element. Both can be different, even though in many cases the cross-sectional geometry of the suspension element guide will correspond to that of the suspension element.
- the at least one between the two Spring slats located spring slats deflect and pulls in this course by the associated increase in distance to the adjacent spring slats, if present, and to the spring slats or the support means to the extent of deflection.
- the flexibility of the suspension means easily deviates from its unloaded, typically horizontal course with different deflection depths of the flexible slats. Due to the elasticity of the support means, no additional restoring means are required in principle in order to bring the support means back into their unloaded position after a spring deflection process and thereby return the trough in the lying surface caused by the load to its original position.
- Such a spring base can be produced with simple means.
- the support means which are typically designed as flexible rods with elastic properties in the transverse direction, preferably fiber-reinforced plastic rods, carbon fibers preferably being used as the fiber, although rods made of other materials, such as spring steel, can be used.
- Fibre-reinforced plastic rods are preferred as load-bearing means due to their flexibility, even when the forces applied are low, and their typically smooth outer surface.
- rods are preferably used in which the fibers follow the longitudinal extension of the rod.
- such a rod may also include a fibrous structure in which the fibers are interwoven or otherwise engaged.
- the spring slats can be drilled through in the transverse direction as support means guides.
- adjacent spring slats have aligned bores as suspension element guides.
- Another advantage of this slat base lies in this simple installation. This advantage consists in the fact that the flexibility (the required bending moment) influences the deflection behavior of this at least one spring slat that is not supported on the spar side and is held by the adjacent bearing spring slats can be.
- the deflection behavior is harder than when using a more flexible suspension element.
- the manufacturer can, for example, provide several suspension elements, each with a different bending moment. Exchanging an already mounted suspension element is easily possible due to the tensile strength, which also requires compressive rigidity, and can be done by anyone. Such a suspension element can thus be easily pushed out of the suspension element guides. In this way, the suspension element can be pressed out of the outer edge of a spring-loaded slat at least to such an extent that it can be gripped by the protruding section and then pulled out as a whole. It is not necessary to dismantle the female slats from the slat holders.
- suspension element guides are designed as bores that reach through the spring slats, no additional elements are required in order to obtain the desired deflection comfort.
- suspension means Since the suspension means is subjected to tensile stress when a spring slat held between two suspension spring slats deflects, the reliability of such a suspension means does not depend on elasticity and therefore proves to be far more durable, with no changes in properties.
- Such a suspension element can have a circular cross section. It goes without saying that other cross-sectional geometries are also possible. Even if a rod is mentioned as the support means in the embodiment described above, it is not excluded that a tube can also be used as the support means, provided it has the desired flexibility.
- the support means connecting the spring slats to one another in the region of their ends transversely to their longitudinal extent can be somewhat greater in length have than determined by the distance between the side faces of the bearing spring slats pointing away from one another.
- the suspension element protrudes somewhat on the two side faces of the suspension spring slats that point away from one another.
- Projecting or protruding from the sides of the spring-loaded slats pointing away from one another can be 1 to 5 cm, for example. This usually allows a sufficient material reserve.
- an end cap is to be placed on the end of the suspension element as a stop, this must be taken into account with regard to the length of the section of the suspension element protruding from the suspension spring strip. A length of about 1 cm is considered sufficient for fitting an end cap forming a stop.
- the suspension element has a deduction on at least one end, but preferably on both ends. Even if movements of the suspension element in a direction transverse to the longitudinal extent of the spring slats are generally not to be expected, such stops ensure that the suspension element remains in its intended position and does not move out of the suspension element guide of a suspension spring slat as a result of various deflection processes.
- a stop can be provided, for example, by end caps, as already outlined above.
- a stop element engaging in the suspension element guide of these suspension spring slats is connected to the end face of the suspension element.
- this can be a screw that engages in the end face of the suspension element, the head of which represents the stop.
- the spring-loaded slats have blind holes on their mutually facing narrow sides, into which the ends of the suspension element engage.
- the support means or means are shorter than the distance between the two sides of the outer support spring slats that point away from one another.
- these can also have guide elements, for example sleeves, as support means guides. This will typically be arranged on the underside of the spring strips. Instead of such a sleeve, it is also possible to mount one or two spaced-apart eyelets on the underside of such a spring strip, through which the suspension element is passed.
- smooth displaceability of the suspension element(s) in the suspension element guides is provided in that the clear diameter of the suspension element guides is larger by a sufficient amount than the diameter of the suspension element.
- Suspension means with a circular cross-section geometry are particularly smooth-running.
- suspension element(s) Due to the high-tensile character of the suspension element(s), several spring slats that are not supported on the spar side can be arranged between two suspension spring slats, depending on the length of the area of the lower spring system that is softer in terms of its deflection characteristics, for example in the shoulder area or in the hip area.
- each end area of such a spring slat group comprising two support spring slats and at least one spring slat arranged between them and not supported on the spar side can have several support element guides adjacent to one another on each end area.
- the deflection characteristic of the flexible slats that are not supported on the spar side can be set up not only by using different suspension means with regard to their bending behavior, but also by the number of suspension means.
- a suspension means provided for soft deflection can be preassembled at the factory.
- the spring slats belonging to this group are arranged in alignment with one another in the unloaded position with regard to their support element guides. If a harder deflection behavior is desired, simply add an additional one Push the suspension elements into the suspension element guides of this spring slat group.
- spacer means are arranged between adjacent spring slats of such a spring slat group, by means of which it is ensured that the spacing of the spring slats from one another remains constant.
- These spacers can be sleeves or sleeve-like bodies, for example, through which the suspension element is guided. These spacers are supported with their end faces on the areas of the spring slats that enclose the openings of the suspension element guide.
- This in figure 1 Bed 1 which is only shown in part, has a spring base 2 designed as a slatted frame and one on the spring base 2 lying mattress 3.
- the spring base 2 comprises a frame 4, of which the figure shows a longitudinal beam 5 and a transverse beam 6, the latter in section.
- a plurality of spring strips 7 are arranged, which span the base of the frame 4 in the transverse direction.
- 7 spring elements 8 are connected to the slats, on the top of which the mattress 3 rests.
- the spring strips 7 are connected to spring strip holders 9 on the two longitudinal bars 5 lying opposite one another.
- the slats 7 are made of wood.
- the spring base 2 has a spring slat group 10 located in the shoulder area of the slatted frame, which is delimited by two supporting spring slats 11, 11.1 in the direction of the longitudinal extent of the bed 1.
- the support spring slats 11, 11.1 are basically constructed like the other spring slats 7 of the slat base 2 and are also connected in the same way by means of spring slat holders 9 to the two longitudinal bars 5 of the frame 4.
- These spring strips are referred to as support spring strips 11, 11.1, since in the exemplary embodiment shown they carry two spring strips 12, 12.1, which in turn are not connected to the longitudinal beams 5.
- These slats 12, 12.1 are also equipped with spring elements 8 that correspond to those of the slats 7.
- figure 2 shows the spring strip group 10 in a standalone representation.
- the slats 12, 12.1 not held on the spar side are connected to the two external support spring slats 11, 11.1 by two flexible rods 14 as support means.
- the flexible rods 14 are connected to the respective spring strips 11, 11.1, 12, 12.1 in the end section relative to their longitudinal extent. Because of the perspective, only one of the two flexible rods 14 can be seen.
- the flexible rod 14 serving as a support means has high tensile strength and penetrates through each spring slat 11, 11.1, 12, 12.1 in a bore that crosses it in the direction of the longitudinal extension of the spring base 2.
- the diameter of the bores is designed with sufficient play in relation to the diameter of the flexible rod 14 so that it can be displaced longitudinally in these bores without any significant resistance.
- the spring slat bores represent suspension element guides.
- the bores for the flexible rods 14 of the spring slats 11, 12, 11.1, 12.1 are aligned with unloaded spring base 2 with each other.
- the flexible rod 14 is a fiber-reinforced plastic rod with carbon fibers as fibers.
- the fibers extend in the longitudinal extent of the rod 14.
- an epoxy resin for example a bisphenol A epoxy resin, has been used as the binder.
- the flexible rods 14 have a fiber content of approximately 63% by volume.
- the flexible rod 14 has a smooth outer surface, which supports its smooth displaceability or its sliding within the bores in the spring slats 11, 12, 11.1, 12.1 that serve as support means guides.
- the diameter of the flexible rod 14 of this embodiment is about 4mm.
- the spring slat bores serving as support means guides in this exemplary embodiment have a diameter of approximately 6 mm.
- the material properties of the flexible rod ensure its tensile strength with a maximum elongation of 1 to 2% and sufficient flexibility in the direction transverse to its longitudinal extension.
- the representation of the spring strip group 10 in the figure 2 makes it clear that the two spring strips 12, 12.1 located between the support spring strips 11, 11.1 are held solely by the flexible rods 14.
- a deflection behavior of the spring slats 12, 12.1 is therefore dependent on the flexibility of the rods 14, that is to say the force that must be applied in order to be able to bend the rod 14 in the transverse direction to its longitudinal extent. Since the slats 12, 12.1 are not supported on the spar side, they form a particularly soft zone in the slat base 2.
- the flexible rods 14 have a length that is greater than the distance between the side faces of the two spring slats 11, 11.1 that point away from one another.
- the flexible rods 14 each have an end section 15, 15.1 that protrudes from each support spring strip 11, 11.1.
- the flexible rods 14 have a stop head or a corresponding element (not shown in the figures) at their end, which serves as a stop for limiting the longitudinal displacement of the flexible rods 14 relative to the support spring strips 11, 11.1.
- the spring slats 12, 12.1 located between the support spring slats 11, 11.1 of the spring slat group 10 and carried by them react particularly flexibly (softly).
- the deflection situation of the spring strip group 10 in the in figure 3 The load shown is in an isolated representation of the spring strip group 10 in figure 4 shown.
- the support spring strips 11, 11.1 move in the direction of one another about a virtual pivot axis which runs perpendicular to the plane of the longitudinal beam 5.
- the longitudinal displaceability of the flexible rods in the spring slat bores as support means guides is necessary so that this vertical movement of the spring slats 12, 12.1 can take place.
- This adjustment of the spring strips 12, 12.1 takes place against the restoring force of the flexible rods 14. It is therefore necessary to overcome a certain bending moment in the flexible rods 14 so that the in figure 4 deflection situation shown can occur.
- the bending moment required for the adjustment of the flexible rods 14 is to the expected load by a person lying on the mattress 3, for example in the figure 3 lateral position shown, adjusted.
- the deflection behavior of the spring slat group 10 and in particular its spring slats 12, 12.1 is used by the bending moment of the rods required for an adjustment in the transverse direction.
- the design of the spring slat holder 9 of the support spring slats 11, 11.1 with regard to their in figure 4 recognizable pivotability also influences the deflection behavior of the spring slats of the spring slat group 10.
- the choice of spring slat holder 9 can also influence the deflection behavior of the spring base 2.
- FIG. 5 shows a top view of another bed 1.1 with a spring base 2.1, as described in principle above.
- the spring slats 7.1 of the slat base 2.1 are held in pairs in a spring slat holder 9.1 as in the bed 1 as double spring slats.
- bed 1.1 has a section with a spring slat group 10.1 in which the deflection characteristics are softer than in the other areas of the slat base 2.
- the spring slat group 10.1 is shown below using the sectional view along section line AA figure 5 with reference to figure 6 explained.
- the spring slat group 10.1 also has two support spring slats 17, 17.1, which are designed as double spring slats. Between these spring slats 17, 17.1 are individual spring slats 18. The spring slats 18 are connected to the spring slats 17, 17.1 by two flexible rods 14.1, 14.2 connected. The flexible rods 14.1, 14.2 are located in the edge area of the spring strip group 10.1 adjacent to the spring strip holders 9.1. The spring slat group 10.1 works exactly as it is described for the spring slat group 10. The spring strip group 10.1 differs from the latter in the extension of the flexible rods 14.1, 14.2. These do not reach through the outermost peripheral spring slats of the support spring slats 17, 17.1.
- the flexible rods 14.1 engage in this with their respective ends in a blind hole 19, 19.1.
- the length of the flexible rods 14.1, 14.2 and the depth of the opposite blind holes 19, 19.1 is matched to one another in such a way that the end of a flexible rod 14.1, 14.2 is not pulled out of one of the blind holes 19, 19.1, even with the strongest permitted deflection.
Landscapes
- Springs (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Description
Die Erfindung betrifft eine Unterfederung für ein Polstermöbel mit einem Rahmen und einer Anzahl an die von dem Rahmen eingefasste Grundfläche überspannenden, an zwei einander gegenüberliegenden Holmen des Rahmens gehaltenen Federleisten in einer Nebeneinanderanordnung, von denen zumindest zwei als Tragfederleisten direkt oder unter Zwischenschaltung von Federleistenhaltern an die Holme angeschlossen sind, zwischen welchen beiden Tragfederleisten wenigstens eine nicht holmseitig abgestützte Federleiste angeordnet, wobei die aus den beiden Tragfederleisten und der zumindest einen zwischen diesen angeordnete Federleiste gebildete Federleistengruppe durch sich zwischen den Endabschnitten dieser Federleisten erstreckende Tragmittel verbunden sind.The invention relates to a spring base for upholstered furniture with a frame and a number of spring slats spanning the base area bordered by the frame and held on two opposing bars of the frame in a juxtaposition, of which at least two are attached as bearing spring slats directly or with the interposition of spring slat holders to the spars are connected, between which two spring slats at least one spring slat not supported on the spar side is arranged, the spring slat group formed from the two spring slats and the at least one spring slat arranged between them being connected by suspension means extending between the end sections of these spring slats.
Polstermöbel, wie beispielsweise Betten, wandelbare Sitz-Liegemöbel oder dergleichen verfügen in vielen Fällen über eine Unterfederung. Eine solche Unterfederung kann als Lattenrost ausgeführt sein. Ein solcher Lattenrost umfasst einen Rahmen und eine Anzahl an Federleisten. Die Federleisten überspannen die von dem Rahmen eingefasste Grundfläche. Bei einem Lattenrost für ein Bett ist der Rahmen durch zwei Längsholme und zwei Querholme gebildet, wobei die Längsholme die Länge des Lattenrostes und die Querholme die Breite desselben bestimmen. Die Federleisten überspannen die Grundfläche dieses Rahmens parallel zu den Querholmen. Die Federleisten sind bei einer solchen Unterfederung somit an den einander gegenüberliegenden Längsholmen gehalten.Upholstered furniture, such as beds, convertible seating/reclining furniture or the like, often has a spring base. Such a spring base can be designed as a slatted frame. Such a slatted frame includes a frame and a number of slats. The spring slats span the base area bordered by the frame. In a slatted frame for a bed, the frame is formed by two longitudinal bars and two transverse bars, the longitudinal bars determining the length of the slatted frame and the transverse bars determining the width of the same. The slats span the base of this frame parallel to the crossbars. The spring slats are thus held on the opposite longitudinal beams with such a sprung base.
Die Federleisten eines solchen Lattenrostes bestimmen den Federungskomfort. Als Federleisten werden solche aus Holz oder aus Komposit-Werkstoffen eingesetzt. Zum individuellen Einstellen der Härte der Federleisten werden mitunter auch Doppelfederleisten eingesetzt, die in einer Übereinanderanordnung zueinander angeordnet sind. Die beiden Federleisten einer solchen Doppelfederleiste sind durch zwei diese einfassende Manschetten zusammengehalten. Diese sind in Längsrichtung der Federleisten verschiebbar, um auf diese Weise die Einfederungshärte einer solchen Federleiste einstellen zu können. Befinden sich diese Härtegradeinstellschieber mehr im mittleren Bereich der Federleisten, ist das Einfederungsverhalten weicher, als wenn diese sich in äußeren Bereichen der Federleisten befinden.The slats of such a slatted frame determine the suspension comfort. Slats made of wood or composite materials are used as slats. For individual adjustment of the hardness of the spring slats, double spring slats are sometimes also used, which are arranged in a stacked arrangement relative to one another. The two slats of such a double slat are held together by two cuffs enclosing them. These are in the longitudinal direction of the slats displaceable in order to be able to set the compression hardness of such a spring strip in this way. If these hardness adjustment slides are more in the middle area of the slats, the deflection behavior is softer than if they are in the outer areas of the slats.
Die Federleisten können unmittelbar an dem Holm angeschlossen sein. Zur Erhöhung des Liegekomforts werden die Federleisten jedoch in vielen Fällen unter Zwischenschaltung von Federleistenhaltern an die Holme des Rahmens angeschlossen. Die Federleistenhalter sind aus oder zumindest unter Beteiligung von elastomeren Werkstoffen hergestellt, damit diese in die Einfederungsarbeit eingebunden sind. Federleistenhalter erlauben auch eine Verstellung der davon getragenen Federleiste über einige Winkelgrade um eine unterhalb der Federleiste verlaufende Schwenkachse. Aufgrund der elastomeren Bestandteile eines solchen Federleistenhalters nimmt dieser nach einer Verstellung durch eine Belastung wieder seine Ausgangsstellung ein.The slats can be connected directly to the spar. In order to increase the lying comfort, however, the spring slats are in many cases connected to the bars of the frame with the interposition of spring slat holders. The slat holders are made of or at least with the participation of elastomeric materials, so that they are involved in the compression work. Spring slat holders also allow the spring slat carried by them to be adjusted over a few angular degrees about a pivot axis running below the spring slat. Due to the elastomeric components of such a spring strip holder, it resumes its original position after being adjusted by a load.
Durch Verwendung von bezüglich ihrer Einfederungscharakteristik unterschiedliche Federleisten können innerhalb des Unterfederungsbereiches Zonen bereitgestellt werden, die hinsichtlich ihrer Einfederung weicher reagieren als andere. Bei Lattenrosten für Betten befinden sich weichere Zonen typischerweise im Schulterbereich und/oder im Hüftbereich.By using spring slats that differ in terms of their deflection characteristics, zones can be provided within the lower spring area that react more softly than others in terms of their deflection. With slatted frames for beds, softer zones are typically located in the shoulder area and/or in the hip area.
Zur Verbesserung eines körperangepassten Einfederungsverhaltens einer Unterfederung für ein Sitz-Liegemöbel ist in
Eine Realisierung eines Lattenrostes, wie in diesem Stand der Technik beschrieben, ist aufwendig. Für die Kopplung der elastischen Elemente zwischen zwei Federleisten benötigt jede Federleiste ein Endtragelement, an das das zwischengeschaltete elastische Element angeschlossen ist. Da bekanntermaßen bei Elastomeren die ursprüngliche Elastizität über die Zeit nachlässt, wäre es zudem wünschenswert, wenn aufbauend auf diesem aus
Ausgehend von diesem diskutierten Stand der Technik liegt der Erfindung daher die Aufgabe zugrunde, eine Unterfederung der eingangs genannten Art dergestalt weiterzubilden, dass nicht nur das Einfederungsverhalten über eine längere Zeit gleichbleibend ist, sondern die auch einfacher herstellbar und leichter montierbar ist und bei der die Möglichkeit besteht, das Einfederungsverhalten der zumindest einen von zwei Tragfederleisten gehaltenen Federleiste mit einfachen Mitteln zu beeinflussen.Proceeding from the discussed state of the art, the invention is therefore based on the object of further developing a spring base of the type mentioned at the outset in such a way that not only does the deflection behavior remain the same over a longer period of time, but it is also easier to manufacture and assemble and in which the possibility consists in influencing the deflection behavior of the at least one spring slat held by two support spring slats with simple means.
Gelöst wird diese Aufgabe erfindungsgemäß durch eine eingangs genannte, gattungsgemäße Unterfederung, bei der jedes Tragmittel elastisch flexibel, jedoch zugfest ist und sich von der ersten Tragfederleiste über die zumindest eine von dieser mitgetragene Federleiste bis zur zweiten Tragfederleiste erstreckt und bei der die durch das Tragmittel verbundenen Federleisten jeweils eine Tragmittelführung aufweisen, in der das Tragmittel in Richtung seiner Längserstreckung verschieblich geführt und in radialer Richtung zu dem Tragmittel formschlüssig gehalten ist.This object is achieved according to the invention by a generic slat base mentioned at the outset, in which each support means is elastically flexible, but has high tensile strength and extends from the first support spring strip via the at least one spring slat carried by this extends to the second spring slat and in which the spring slats connected by the suspension element each have a suspension element guide in which the suspension element is guided so that it can be displaced in the direction of its longitudinal extent and is held in a form-fitting manner in the radial direction relative to the suspension element.
Bei dieser Unterfederung ist das Tragmittel in Richtung seiner Längserstreckung zugfest und in Querrichtung elastisch flexibel. das heißt: biegsam. Dieses Tragmittel ist damit in Querrichtung zur Längserstreckung biegbar und stellt sich auf Grund seiner elastischen flexiblen Eigenschaft selbständig nach Beendigung der Belastungssituation wieder in seine Ausgangslage zurück und damit auch die von diesen getragenen Federleisten. Von Besonderheit bei dieser Unterfederung ist, dass dieses Tragmittel sich typischerweise in dem Bereich der längsseitigen Endabschnitte der Federleisten befindet, in der ersten und zweiten Tragfederleiste gelagert ist und sich durchgehend zwischen diesen erstreckt und somit auch über die zwischen den beiden Tragfederleisten befindlichen Federleisten. Zum Anschluss der Federleisten an ein solches Tragmittel verfügt jede Federleiste über eine Tragmittelführung. In dieser ist das Tragmittel in längsaxialer Richtung verschiebbar geführt. Das Tragmittel kann daher in einer solchen Tragmittelführung in Richtung seiner Längserstreckung bewegt werden. In der Tragmittelführung ist das Tragmittel in seiner radialen Richtung und somit in und entgegen der Einfederungsrichtung formschlüssig gehalten. Dies bedeutet, dass die Tragmittel in radialer Richtung nicht von einer solcher Tragmittelführung getrennt werden können. Im Falle von umfänglich nicht geschlossenen Tragmittelführungen bedeutet dieses, dass die der Längserstreckung folgende Öffnung eine kleinere Öffnungsweite aufweist als der Durchmesser des Tragmittels. Damit sind die Federleisten in Querrichtung bezüglich des Tragmittels an ein solches unverlierbar angeschlossen. Die Querschnittsgeometrie der Tragmittelführung muss nicht der Querschnittsgeometrie des Tragmittels entsprechen. Beide können unterschiedlich sein, auf wenn in vielen Fällen die Querschnittsgeometrie der Tragmittelführung derjenigen des Tragmittels entsprechen wird.In the case of this slatted base, the suspension element has tensile strength in the direction of its longitudinal extension and is elastically flexible in the transverse direction. that means: flexible. This suspension means can thus be bent in the transverse direction to the longitudinal extension and, due to its elastic, flexible property, automatically returns to its starting position after the end of the loading situation, and thus also the spring slats carried by it. A special feature of this slat base is that this support means is typically located in the area of the longitudinal end sections of the slats, is mounted in the first and second slats and extends continuously between them and thus also over the slats located between the two slats. To connect the spring slats to such a suspension element, each spring slat has a suspension element guide. In this, the support means is guided in a longitudinally axial direction. The suspension element can therefore be moved in such a suspension element guide in the direction of its longitudinal extent. In the suspension element guide, the suspension element is held in a form-fitting manner in its radial direction and thus in and against the deflection direction. This means that the suspension elements cannot be separated from such a suspension element guide in the radial direction. In the case of suspension element guides that are not closed circumferentially, this means that the opening following the longitudinal extent has a smaller opening width than the diameter of the suspension element. The spring slats are thus captively connected to the suspension element in the transverse direction. The cross-sectional geometry of the suspension element guide does not have to correspond to the cross-sectional geometry of the suspension element. Both can be different, even though in many cases the cross-sectional geometry of the suspension element guide will correspond to that of the suspension element.
Infolge der längsaxialen Verschieblichkeit der Federleisten gegenüber dem Tragmittel und umgekehrt kann die zumindest eine zwischen den beiden Tragfederleisten befindliche Federleiste einfedern und zieht in diesem Zuge durch die damit einhergehende Abstandsvergrößerung zu den benachbarten Federleisten, falls vorhanden, sowie zu den Tragfederleisten das bzw. die Tragmittel in dem Maße der Einfederung mit. Die Flexibilität des Tragmittels erlaubt die Abweichung von seinem unbelasteten typischerweise horizontalen Verlauf bei unterschiedlicher Einfederungstiefe der Federleisten ohne weiteres. Auf Grund der Elastizität der Tragmittel werden grundsätzlich keine zusätzlichen Rückstellmittel benötigt, um nach einem Einfederungsvorgang die Tragmittel wieder in ihre unbelastete Stellung zu bringen und hierdurch die durch die Belastung entstandene Mulde in der Liegefläche wieder in die Ausgangsstellung zurückzubilden.As a result of the longitudinal axial displaceability of the spring slats relative to the suspension element and vice versa, the at least one between the two Spring slats located spring slats deflect and pulls in this course by the associated increase in distance to the adjacent spring slats, if present, and to the spring slats or the support means to the extent of deflection. The flexibility of the suspension means easily deviates from its unloaded, typically horizontal course with different deflection depths of the flexible slats. Due to the elasticity of the support means, no additional restoring means are required in principle in order to bring the support means back into their unloaded position after a spring deflection process and thereby return the trough in the lying surface caused by the load to its original position.
Eine solche Unterfederung ist mit einfachen Mitteln herzustellen. Diesbezüglich bedarf es lediglich der Bereitstellung der Tragmittel, die typischerweise als flexible Stäbe mit elastischen Eigenschaften in Querrichtung ausgeführt sind, vorzugsweise faserverstärkte Kunststoffstäbe, wobei vorzugsweise Karbonfasern als Faser eingesetzt werden, auch wenn Stäbe aus anderen Materialien, wie beispielsweise Federstahl, eingesetzt werden können. Faserverstärkte Kunststoffstäbe werden als Tragmittel aufgrund ihrer Flexibilität auch bei geringeren angreifenden Kräften und ihrer typischerweise glatten Mantelfläche bevorzugt eingesetzt. Bei einer solchen Ausgestaltung werden vorzugsweise Stäbe eingesetzt, bei denen die Fasern der Längserstreckung des Stabes folgen. Ein solcher Stab kann jedoch auch ein Fasergebilde enthalten, bei dem die Fasern miteinander verwoben oder anderweitig miteinander in Eingriff gestellt sind. Als Tragmittelführungen können beispielsweise die Federleisten in Querrichtung durchgreifende Bohrungen dienen. Benachbarten Federleisten weisen in einem solchen Fall miteinander fluchtende Bohrungen als Tragmittelführungen auf. Zum Aufhängen einer oder mehrerer, zwischen zwei Tragfederleisten befindlichen Federleisten brauchen diese lediglich in einer Nebeneinanderanordnung gehalten und anschließend das Tragmittel durch die Tragmittelführungen hindurchgeführt zu werden. In dieser einfachen Montage liegt auch ein weiterer Vorteil dieser Unterfederung begründet. Dieser Vorteil besteht darin, dass über die Flexibilität (das benötigte Biegemoment) das Einfederungsverhalten dieser zumindest einen nicht holmseitig abgestützten und von den benachbarten Tragfederleisten gehaltenen Federleiste beeinflusst werden kann. Wird ein Tragmittel mit einer höheren Biegesteifigkeit eingesetzt, ist das Einfederungsverhalten härter als beim Einsatz eines biegeweicheren Tragmittels. Dieses erlaubt bei ein und demselben Lattenrost in einfacher Weise eine Anpassung an individuelle Bedürfnisse. Zu diesem Zweck können herstellerseitig beispielsweise mehrere Tragmittel mit jeweils unterschiedlichem Biegemoment bereitgestellt werden. Ein Austauschen eines bereits montierten Tragmittels ist aufgrund der Zugfestigkeit, welche auch eine Drucksteifigkeit bedingt, ohne weiteres möglich und kann von jedermann vorgenommen werden. Ein solches Tragmittel kann somit ohne Weiteres aus den Tragmittelführungen herausgedrückt werden. Somit kann das Tragmittel zumindest soweit aus dem äußeren Rand einer Tragfederleiste herausgedrückt werden, dass dieses an dem herausstehenden Abschnitt ergriffen und dann insgesamt herausgezogen werden kann. Eine Demontage der Federleisten aus Leistenhalterungen ist hierzu nicht erforderlich.Such a spring base can be produced with simple means. In this respect, it is only necessary to provide the support means, which are typically designed as flexible rods with elastic properties in the transverse direction, preferably fiber-reinforced plastic rods, carbon fibers preferably being used as the fiber, although rods made of other materials, such as spring steel, can be used. Fibre-reinforced plastic rods are preferred as load-bearing means due to their flexibility, even when the forces applied are low, and their typically smooth outer surface. In such an embodiment, rods are preferably used in which the fibers follow the longitudinal extension of the rod. However, such a rod may also include a fibrous structure in which the fibers are interwoven or otherwise engaged. For example, the spring slats can be drilled through in the transverse direction as support means guides. In such a case, adjacent spring slats have aligned bores as suspension element guides. To hang up one or more spring slats located between two support spring slats, they only need to be held in a side-by-side arrangement and then the suspension element must be guided through the suspension element guides. Another advantage of this slat base lies in this simple installation. This advantage consists in the fact that the flexibility (the required bending moment) influences the deflection behavior of this at least one spring slat that is not supported on the spar side and is held by the adjacent bearing spring slats can be. If a suspension element with a higher flexural rigidity is used, the deflection behavior is harder than when using a more flexible suspension element. This allows one and the same slatted frame to be easily adapted to individual needs. For this purpose, the manufacturer can, for example, provide several suspension elements, each with a different bending moment. Exchanging an already mounted suspension element is easily possible due to the tensile strength, which also requires compressive rigidity, and can be done by anyone. Such a suspension element can thus be easily pushed out of the suspension element guides. In this way, the suspension element can be pressed out of the outer edge of a spring-loaded slat at least to such an extent that it can be gripped by the protruding section and then pulled out as a whole. It is not necessary to dismantle the female slats from the slat holders.
Sind die Tragmittelführungen als die Federleisten durchgreifende Bohrungen ausgeführt, werden keine zusätzlichen Elemente benötigt, um den gewünschten Einfederungskomfort zu erhalten.If the suspension element guides are designed as bores that reach through the spring slats, no additional elements are required in order to obtain the desired deflection comfort.
Da bei einem Einfedern einer zwischen zwei Tragfederleisten gehaltenen Federleiste das Tragmittel auf Zug beansprucht wird, ist die Zuverlässigkeit eines solchen Tragmittels nicht von einer Elastizität abhängig und erweist sich daher als weitaus dauerhafter, und zwar ohne Eigenschaftsänderungen.Since the suspension means is subjected to tensile stress when a spring slat held between two suspension spring slats deflects, the reliability of such a suspension means does not depend on elasticity and therefore proves to be far more durable, with no changes in properties.
Ein solches Tragmittel kann einen kreisrunden Querschnitt aufweisen. Es versteht sich, dass auch andere Querschnittsgeometrien möglich sind. Auch wenn in der zuvor beschriebenen Ausführung als Tragmittel ein Stab genannt ist, ist nicht ausgeschlossen, dass als Tragmittel auch ein Rohr eingesetzt werden kann, vorausgesetzt, es verfügt über die gewünschte Flexibilität.Such a suspension element can have a circular cross section. It goes without saying that other cross-sectional geometries are also possible. Even if a rod is mentioned as the support means in the embodiment described above, it is not excluded that a tube can also be used as the support means, provided it has the desired flexibility.
Die die Federleisten im Bereich ihrer Enden quer zu ihrer Längserstreckung miteinander verbindenden Tragmittel können eine etwas größere Länge aufweisen, als durch den Abstand der voneinander wegweisenden Seitenflächen der Tragfederleisten bestimmt. Somit ragt das Tragmittel an den beiden voneinander wegweisenden Seitenflächen der Tragfederleisten etwas hervor. Dieses ist die Materialreserve, die sich beim Einfedern der zwischen diesen Tragfederleisten in die Tragmittelführung der Tragfederleisten einziehen kann. Ein Vorstehen bzw. Herausragen aus den voneinander wegweisenden Seiten der Tragfederleisten kann beispielsweise 1 bis 5 cm betragen. Dieses erlaubt in aller Regel eine hinreichende Materialreserve. Wenn eine Endkappe als Anschlag auf das Ende des Tragmittels aufgesetzt werden soll, ist dieses hinsichtlich der Länge des aus der Tragfederleiste herausragenden Abschnittes des Tragmittels zu berücksichtigen. Eine Länge von etwa 1 cm wird als ausreichend zum Aufsetzen einer einen Anschlag bildenden Endkappe angesehen.The support means connecting the spring slats to one another in the region of their ends transversely to their longitudinal extent can be somewhat greater in length have than determined by the distance between the side faces of the bearing spring slats pointing away from one another. Thus, the suspension element protrudes somewhat on the two side faces of the suspension spring slats that point away from one another. This is the material reserve that can pull in between these spring slats in the suspension element guide of the spring slats when the springs deflect. Projecting or protruding from the sides of the spring-loaded slats pointing away from one another can be 1 to 5 cm, for example. This usually allows a sufficient material reserve. If an end cap is to be placed on the end of the suspension element as a stop, this must be taken into account with regard to the length of the section of the suspension element protruding from the suspension spring strip. A length of about 1 cm is considered sufficient for fitting an end cap forming a stop.
In einem Ausführungsbeispiel einer solchen Ausgestaltung ist vorgesehen, dass das Tragmittel an zumindest einem, bevorzugt jedoch an beiden Enden einen Abschlag aufweist. Auch wenn Bewegungen des Tragmittels in Querrichtung zur Längserstreckung der Federleisten grundsätzlich nicht zu erwarten sind, wird durch derartige Anschläge sichergestellt, dass das Tragmittel in seiner bestimmungsgemäßen Position verbleibt und nicht auf einer die Tragmittelführung einer Tragfederleiste infolge mannigfaltiger Einfederungsvorgänge herauswandert. Ein solcher Anschlag kann beispielsweise durch Endkappen, wie vorstehend bereits skizziert, bereitgestellt sein. Möglich ist es auch, dass, sollte aus den voneinander wegweisenden Seiten der Tragfederleisten kein Tragmittelabschnitt hervorstehen, ein in die Tragmittelführung dieser Tragfederleisten eingreifendes Anschlagelement an die Stirnfläche des Tragmittels angeschlossen wird. Beispielsweise kann es sich hierbei um eine in die Stirnseite des Tragmittels eingreifende Schraube handeln, deren Kopf der Anschlag darstellt.In an exemplary embodiment of such a configuration, it is provided that the suspension element has a deduction on at least one end, but preferably on both ends. Even if movements of the suspension element in a direction transverse to the longitudinal extent of the spring slats are generally not to be expected, such stops ensure that the suspension element remains in its intended position and does not move out of the suspension element guide of a suspension spring slat as a result of various deflection processes. Such a stop can be provided, for example, by end caps, as already outlined above. It is also possible that, if no suspension element section protrudes from the sides of the suspension spring slats pointing away from one another, a stop element engaging in the suspension element guide of these suspension spring slats is connected to the end face of the suspension element. For example, this can be a screw that engages in the end face of the suspension element, the head of which represents the stop.
Gemäß einer anderen Ausgestaltung ist vorgesehen, dass die Tragfederleisten Sackbohrungen an ihren zueinander weisenden Schmalseiten aufweisen, in die die Enden des Tragmittels eingreifen. Bei einer solchen Ausgestaltung sind das bzw. die Tragmittel kürzer als der Abstand der beiden voneinander wegweisenden Seiten der äußeren Tragfederleisten.According to another embodiment, it is provided that the spring-loaded slats have blind holes on their mutually facing narrow sides, into which the ends of the suspension element engage. In such an embodiment, the support means or means are shorter than the distance between the two sides of the outer support spring slats that point away from one another.
Anstelle von die Federleisten in Querrichtung durchgreifende Bohrungen oder Sackbohrungen können diese als Tragmittelführungen auch Führungselemente aufweisen, beispielsweise Hülsen. Diese wird man typischerweise an der Unterseite der Federleisten anordnen. Anstelle einer solchen Hülse ist es auch möglich, an eine solche Federleiste unterseitig ein oder zwei mit Abstand zueinander angeordnete Ösen zu montieren, durch die das Tragmittel hindurchgeführt ist.Instead of bores or blind bores passing through the spring slats in the transverse direction, these can also have guide elements, for example sleeves, as support means guides. This will typically be arranged on the underside of the spring strips. Instead of such a sleeve, it is also possible to mount one or two spaced-apart eyelets on the underside of such a spring strip, through which the suspension element is passed.
Ebenfalls sind Ausgestaltungen einer solchen Unterfederung möglich, bei der einzelne Federleisten unterschiedliche Tragmittelführungen aufweisen.Configurations of such a spring base are also possible, in which the individual spring slats have different support means guides.
Eine leichtgängige Verschiebbarkeit des bzw. der Tragmittel in den Tragmittelführungen wird gemäß einem Ausführungsbeispiel dadurch bereitgestellt, dass der lichte Durchmesser der Tragmittelführungen um ein hinreichendes Maß größer ist als der Durchmesser des Tragmittels. Besonders leichtgängig sind Tragmittel mit kreisrunder Querschnittsgeometrie.According to one exemplary embodiment, smooth displaceability of the suspension element(s) in the suspension element guides is provided in that the clear diameter of the suspension element guides is larger by a sufficient amount than the diameter of the suspension element. Suspension means with a circular cross-section geometry are particularly smooth-running.
Aufgrund des zugfesten Charakters des bzw. der Tragmittel können zwischen zwei Tragfederleisten durchaus mehrere nicht holmseitig abgestützte Federleisten angeordnet sein, und zwar je nachdem, welche Länge der von seiner Einfederungscharakteristik her weichere Bereich der Unterfederung, beispielsweise im Schulterbereich oder im Hüftbereich, aufweisen soll.Due to the high-tensile character of the suspension element(s), several spring slats that are not supported on the spar side can be arranged between two suspension spring slats, depending on the length of the area of the lower spring system that is softer in terms of its deflection characteristics, for example in the shoulder area or in the hip area.
In einer Weiterbildung ist vorgesehen, dass in jedem Endbereich einer solchen Federleistengruppe umfassend zwei Tragfederleisten und zumindest eine zwischen diesen angeordnete, holmseitig nicht abgestützte Federleiste benachbart zueinander an jedem Endbereich mehrere Tragmittelführungen aufweisen können. Bei einer solchen Ausgestaltung lässt sich die Einfederungscharakteristik der nicht holmseitig abgestützten Federleisten somit nicht nur durch Einsatz hinsichtlich ihres Biegeverhaltens unterschiedlicher Tragmittel, sondern auch durch die Anzahl der Tragmittel einrichten. Bei einer solchen Ausgestaltung kann werksseitig ein für eine weiche Einfederung vorgesehenes Tragmittel vormontiert sein. Durch dieses sind die zu dieser Gruppe gehörenden Federleisten bei unbelasteter Stellung hinsichtlich ihrer Tragmittelführungen fluchtend zueinander angeordnet. Ist ein härteres Einfederungsverhalten gewünscht, wird schlichtweg ein zusätzliches Tragmittel in die Tragmittelführungen dieser Federleistengruppe einzuschieben.In a development it is provided that in each end area of such a spring slat group comprising two support spring slats and at least one spring slat arranged between them and not supported on the spar side can have several support element guides adjacent to one another on each end area. With such an embodiment, the deflection characteristic of the flexible slats that are not supported on the spar side can be set up not only by using different suspension means with regard to their bending behavior, but also by the number of suspension means. In such a configuration, a suspension means provided for soft deflection can be preassembled at the factory. As a result, the spring slats belonging to this group are arranged in alignment with one another in the unloaded position with regard to their support element guides. If a harder deflection behavior is desired, simply add an additional one Push the suspension elements into the suspension element guides of this spring slat group.
In einer Weiterbildung ist vorgesehen, dass zwischen benachbarten Federleisten einer solchen Federleistengruppe Abstandmittel angeordnet sind, durch die gewährleistet ist, dass der Abstand der Federleisten voneinander konstant bleibt. Bei diesen Abstandsmitteln kann es sich beispielsweise um Hülsen oder hülsenförmige Körper handeln, durch die das Tragmittel geführt ist. Diese Abstandshalter stützen sich mit ihren Stirnseiten an den die Mündungen der Tragmittelführung einfassenden Bereichen der Federleisten ab.In a further development it is provided that spacer means are arranged between adjacent spring slats of such a spring slat group, by means of which it is ensured that the spacing of the spring slats from one another remains constant. These spacers can be sleeves or sleeve-like bodies, for example, through which the suspension element is guided. These spacers are supported with their end faces on the areas of the spring slats that enclose the openings of the suspension element guide.
Nachfolgend ist die Erfindung anhand von Ausführungsbeispielen unter Bezugnahme auf die beigefügten Figuren beschrieben. Es zeigen:
- Fig. 1:
- Eine bezüglich ihres Rahmens in einem Längsschnitt gezeigte Unterfederung eines im Übrigen nicht näher dargestellten Bettes mit einer auf dieser aufgelegten Matratze,
- Fig. 2:
- eine vergrößerte Darstellung einer Gruppe von Federleisten der Unterfederung der
Figur 1 , - Fig. 3:
- das
Bett der Figur 1 mit einer auf der Matratze liegenden Person zum Visualisieren einer Einfederung der Unterfederung, - Fig. 4:
- die
Federleistengruppe der Figur 2 in einer vergrößerten Darstellung mit den eingefederten Federleisten in eingefederter Stellung gemäßFigur 3 , - Fig. 5:
- eine Draufsicht auf ein weiteres Bett mit abgenommener Matratze mit einer erfindungsgemäßen Unterfederung und
- Fig. 6:
- einen Schnitt entlang der Linie A -
A der Figur 5 .
- Figure 1:
- A spring support, shown in a longitudinal section with respect to its frame, of a bed, otherwise not shown in detail, with a mattress placed on it,
- Figure 2:
- an enlarged view of a group of spring slats of the spring base
figure 1 , - Figure 3:
- the bed of
figure 1 with a person lying on the mattress to visualize a deflection of the spring base, - Figure 4:
- the slat group of
figure 2 in an enlarged view with the spring-loaded slats in the spring-loaded position according to FIGfigure 3 , - Figure 5:
- a plan view of another bed with a removed mattress with a spring base according to the invention and
- Figure 6:
- a cut along the line A - A the
figure 5 .
Das in
Die Unterfederung 2 weist eine im Schulterbereich des Lattenrostes befindliche Federleistengruppe 10 auf, die durch zwei Tragfederleisten 11, 11.1 in Richtung der Längserstreckung des Bettes 1 begrenzt ist. Die Tragfederleisten 11, 11.1 sind grundsätzlich aufgebaut wie die übrigen Federleisten 7 der Unterfederung 2 und sind auch auf dieselbe Art und Weise mittels Federleistenhalter 9 an die beiden Längsholme 5 des Rahmens 4 angeschlossen. Als Tragfederleisten 11, 11.1 werden diese Federleisten bezeichnet, da diese bei dem dargestellten Ausführungsbeispiel zwei Federleisten 12, 12.1 tragen, die ihrerseits nicht an die Längsholme 5 angeschlossen sind. Auch diese Federleisten 12, 12.1 sind mit Federelementen 8 ausgerüstet, die denjenigen der Federleisten 7 entsprechen.The
Die Darstellung der Federleistengruppe 10 in der
Die flexiblen Stäbe 14 weisen eine Länge auf, die größer ist als der Abstand der voneinander wegweisenden Seitenflächen der beiden Tragfederleisten 11, 11.1. Die flexiblen Stäbe 14 ragen mit jeweils einem Endabschnitt 15, 15.1 aus jeder Tragfederleiste 11, 11.1 heraus.The
Typischerweise verfügen die flexiblen Stäbe 14 an ihrem Ende über einen Anschlagkopf oder ein entsprechendes Element (in den Figuren nicht dargestellt), der als Anschlag zum Begrenzen der Längsverschieblichkeit der flexiblen Stäbe 14 gegenüber den Tragfederleisten 11, 11.1 dient.Typically, the
Wird das Bett 1 und damit seine Unterfederung 2 belastet, wie beispielhaft in
Da die Federleistenbohrungen, in denen die flexiblen Stäbe 14 geführt sind, in unbelasteter Stellung der Federleistengruppe 10 miteinander fluchten, kann ohne weiteres ein flexibler Stab 14 herausgezogen und durch einen anderen mit einem anderen Biegemoment ausgetauscht werden, wenn ein für diese Zone weicheres oder härteres Einfederungsverhalten der Unterfederung 2 gewünscht wird.Since the spring slat bores, in which the
Nicht gezeigt ist in den Figuren, dass zwischen zwei benachbarten Federleisten 11, 12; 12, 12.1; 12.1, 11.1 jeweils ein Abstandselement angeordnet ist, welches sich an den zueinander weisenden Schmalseiten der jeweils benachbarten Federleisten 11, 12; 12, 12.1; 12.1, 11.1 stirnseitig abstützen. Auf diese Weise ist der Abstand dieser Federleisten 11, 12; 12, 12.1; 12.1, 11.1 voneinander dauerhaft definiert und ändert sich auch infolge eines oftmaligen Einfederns nicht. Als Abstandselemente dienen Hülsen, die von dem jeweiligen flexiblen Stab 14 durchgriffen sind. Als Abstandshülsen werden typischerweise Kunststoffhülsen verwendet. Auch der Einsatz anderer Abstandselemente ist möglich.What is not shown in the figures is that between two adjacent spring strips 11, 12; 12, 12.1; 12.1, 11.1 each arranged a spacer element is, which is on the mutually facing narrow sides of the adjacent spring strips 11, 12; 12, 12.1; 12.1, 11.1 support at the front. In this way, the distance between these spring strips 11, 12; 12, 12.1; 12.1, 11.1 are permanently defined from each other and do not change as a result of frequent deflection. Sleeves, through which the respective
Die Auslegung der Federleistenhalter 9 der Tragfederleisten 11, 11.1 hinsichtlich ihrer in
Deutlich erkennbar ist in
Die Federleistengruppe 10.1 verfügt ebenfalls über zwei Tragfederleisten 17, 17.1, die als Doppelfederleisten ausgeführt sind. Zwischen diesen Tragfederleisten 17, 17.1 befinden sich einzelne Federleisten 18. Die Federleisten 18 sind an die Tragfederleisten 17, 17.1 durch zwei flexible Stäbe 14.1, 14.2 angeschlossen. Die flexiblen Stäbe 14.1, 14.2 befinden sich im Randbereich der Federleistengruppe 10.1 benachbart zu den Federleistenhaltern 9.1. Die Federleistengruppe 10.1 funktioniert genauso, wie dieses zu der Federleistengruppe 10 beschrieben ist. Von letzterer unterscheidet sich die Federleistengruppe 10.1 durch die Erstreckung der flexiblen Stäbe 14.1, 14.2. Diese durchgreifen die äußersten randlichen Federleisten der Tragfederleisten 17, 17.1 nicht. In diese greifen die flexiblen Stäbe 14.1 mit ihrem jeweiligen Ende in eine Sackbohrung 19, 19.1 ein. Die Länge der flexiblen Stäbe 14.1, 14.2 und die Tiefe der einander gegenüberliegenden Sackbohrungen 19, 19.1 ist so aufeinander abgestimmt, dass auch bei der stärksten zugelassenen Einfederung das Ende eines flexiblen Stabes 14.1, 14.2 aus einer der Sackbohrungen 19, 19.1 nicht herausgezogen wird.The spring slat group 10.1 also has two
Die Erfindung ist anhand eines Ausführungsbeispiels beschrieben worden. Ohne den Umfang der geltenden Ansprüche zu verlassen, ergeben sich für einen Fachmann zahlreiche Möglichkeiten, diese umzusetzen, ohne dass dies im Rahmen dieser Ausführungen näher erläutert werden müsste.The invention has been described using an exemplary embodiment. Without departing from the scope of the applicable claims, there are numerous ways for a person skilled in the art to implement them, without this having to be explained in more detail within the scope of these statements.
- 1, 1.11, 1.1
- BettBed
- 2, 2.12, 2.1
- Unterfederungspring base
- 33
- Matratzemattress
- 44
- RahmenFrame
- 55
- Längsholmlongitudinal beam
- 66
- Querholmcross bar
- 7, 7.17, 7.1
- Federleistefemale connector
- 88th
- Federelementspring element
- 9, 9.19, 9.1
- Federleistenhalterslat holder
- 10, 10.110, 10.1
- Federleistengruppeslat group
- 11, 11.111, 11.1
- Tragfederleistesuspension slat
- 12, 12.112, 12.1
- Federleistefemale connector
- 14, 14.1, 14.214, 14.1, 14.2
- flexibler Stabflexible rod
- 15, 15.115, 15.1
- Endabschnittend section
- 1616
- Personperson
- 17, 17.117, 17.1
- Tragfederleistesuspension slat
- 1818
- Federleistefemale connector
- 19, 19.119, 19.1
- Sackbohrungblind hole
Claims (14)
- Suspension for an upholstered item of furniture, with a frame (4) and a number of spring strips (7, 7.1), spanning the basic area encompassed by the frame (4) and held by two opposing spars (5) of the frame (4) in an arrangement next to one another, of which at least two are connected to the spars (5) as carrier spring strips (11, 11.1) directly or with the intermediate arrangement of spring strip holders (9, 9.1), arranged between the said two carrier spring strips (11, 11.1; 17, 17.1) is at least one spring strip (12, 12.1) which is not supported on the spar side, wherein the spring strip group (10, 10.1), formed from the two carrier spring strips (11, 11.1; 17, 17.1) and from the at least one spring strip (12, 12.1) arranged between these carrier spring strips, is connected by carrying means (14) extending between the end sections of these spring strips (11, 11.1, 12, 12.1), characterised in that each carrying means (14) is elastically flexible but tension-resistant, and extends from the first carrier spring strip (11) over the at least one spring strip (12, 12.1; 18), which is carried together with the carrier spring strip, as far as the second carrier spring strip (11.1), and that the spring strips (11, 11.1, 12, 12.1) connected by the carrying means (14) comprise in each case a carrying means guide, in which the carrying means (14) is displaceably guided in the direction of its longitudinal extension and is held in the radial direction in positive fit to the carrying means (14).
- Suspension according to claim 1, characterised in that the carrying means (14) has a length which is greater than the distance interval between side surfaces facing away from one another of the carrying spring strips (11, 11.1).
- Suspension according to claim 1 or 2, characterised in that the carrying means is provided at least at one end with a stop in order to limit its displacement movement in the carrier means guide.
- Suspension according to claim 1, characterised in that the carrying means does not engage through the carrier spring strips (11, 11.1).
- Suspension according to any one of claims 1 to 4, characterised in that the carrying means are rods (14).
- Suspension according to claim 5, characterised in that the carrying means (14) are fibre-reinforced, in particular carbon fibre-reinforced, plastic rods, wherein the run of the fibre follows the longitudinal extension of the carrying means.
- Suspension according to any one of claims 1 to 6, characterised in that the carrying means guides of at least one spring guide are provided by holes engaging in the transverse direction through this spring strip.
- Suspension according to any one of claims 1 to 6, characterised in that at least some of the carrying means guides of the spring strips are provided by guide elements which are located on the underside of the spring strip.
- Suspension according to claim 8, characterised in that the carrying means guides are sleeve body elements.
- Suspension according to any one of claims 1 to 9, characterised in that spacer sleeve elements are arranged between two adjacent spring strips, through which the carrying means engage, by means of which two adjacent spring strips are held at a distance interval from one another.
- Suspension according to any one of claims 1 to 10, characterised in that at least two of these spring strips (12, 12.1), carried by the carrying means (14), are held between two carrying spring strips (11, 11.1).
- Suspension according to any one of claims 1 to 11, characterised in that the suspension (2) is a slatted frame for an item of sleeping furniture.
- Bed with a suspension according to claim 12.
- Bed according to claim 13, characterised in that the suspension comprises, in the shoulder region and/or in the hip region, a spring strip group (10) with two carrying spring strips (11, 11.1), and at least one spring strip (12, 12.1) located between these and carried by the carrying spring strips (11, 11.1).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202020105687.5U DE202020105687U1 (en) | 2020-10-05 | 2020-10-05 | Spring base for upholstered furniture |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3984414A1 EP3984414A1 (en) | 2022-04-20 |
EP3984414B1 true EP3984414B1 (en) | 2023-06-07 |
EP3984414C0 EP3984414C0 (en) | 2023-06-07 |
Family
ID=73019390
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21200643.1A Active EP3984414B1 (en) | 2020-10-05 | 2021-10-04 | Suspension for upholstered furniture and bed with such a suspension |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3984414B1 (en) |
DE (1) | DE202020105687U1 (en) |
ES (1) | ES2950175T3 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE502006006988D1 (en) * | 2006-09-21 | 2010-07-01 | Recticel Bedding Schweiz Ag | Bearing device with bearing elements for the support of support slats on the longitudinal members of a mattress of a bed |
FR2960754B1 (en) | 2010-06-03 | 2013-05-17 | Delahousse Et Fils Sa | SEATING OR SLEEPING DEVICE FOR SOMMIER CHASSIS OR SEAT |
DE202013007446U1 (en) * | 2013-08-22 | 2013-09-27 | Groll Gmbh & Co. Kg | Bed suspension with interacting areas |
-
2020
- 2020-10-05 DE DE202020105687.5U patent/DE202020105687U1/en active Active
-
2021
- 2021-10-04 ES ES21200643T patent/ES2950175T3/en active Active
- 2021-10-04 EP EP21200643.1A patent/EP3984414B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
ES2950175T3 (en) | 2023-10-05 |
EP3984414A1 (en) | 2022-04-20 |
DE202020105687U1 (en) | 2020-10-13 |
EP3984414C0 (en) | 2023-06-07 |
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