EP0834272A1 - Slatted bed base with two layers of slats - Google Patents

Slatted bed base with two layers of slats Download PDF

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Publication number
EP0834272A1
EP0834272A1 EP97402271A EP97402271A EP0834272A1 EP 0834272 A1 EP0834272 A1 EP 0834272A1 EP 97402271 A EP97402271 A EP 97402271A EP 97402271 A EP97402271 A EP 97402271A EP 0834272 A1 EP0834272 A1 EP 0834272A1
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EP
European Patent Office
Prior art keywords
batten
slats
leaf spring
bed base
slat
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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Application number
EP97402271A
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German (de)
French (fr)
Inventor
Thierry Vischel
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Individual
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Individual
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Publication date
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Publication of EP0834272A1 publication Critical patent/EP0834272A1/en
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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
    • 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 present invention relates to a box spring comprising at least one upper batten and one batten lower.
  • two levels of transverse slats in wood are provided in the central area of the box spring intended to normally receive the kidneys and a user's pelvis, that is, the part of the body of the heaviest user.
  • the first level of slats is defined by upper slats and is coplanar with the slats of the other areas of the box spring, when the bed base is flat.
  • the second slat level is defined by slats lower, called reinforcement slats, which are underlying respectively to the upper slats in the central area of the box spring and can come in contact with them.
  • the lower and upper slats are matched using plastic sliders.
  • two firmness adjustment sliders are slidably mounted in the vicinity of both central areas of an upper batten and a batten lower so as to increase or decrease the stiffness of the lower pair of slats and higher, by moving the sliders more or less, and thus increase or decrease the firmness of the area central of the box spring.
  • the range variation in the stiffness of the pair of slats upper and lower is very small due to the firm and constant coupling of two slats by the cursor.
  • the central area of the box spring offers stiffness relatively high whatever the load supported.
  • the present invention aims to provide a arrangement of upper and lower slats, the stiffness is also adjustable, but which for a given setting, offers stiffness progression in load function, and thus more damping progressive load.
  • a box spring comprising at least one upper batten and a lower batten, is characterized in that it comprises a leaf spring curved having ends slidably mounted on one of the upper and lower slats and a vertex located substantially close to each other upper and lower slats.
  • Terms “substantially close to” means in the sense of the invention “a short distance from” or “in contact of”.
  • the leaf spring is a batten curved in noble material, such as wood, in harmony with the slats of the traditional box springs.
  • the spring to blade is a convex slat in the direction of the slat superior.
  • Leaf spring ends then slide against the lower batten and the top of the leaf spring is located substantially below or in contact with the upper batten.
  • the leaf spring is a convex slat towards the slat lower.
  • Leaf spring ends lean on or hang from the upper batten and the top of the leaf spring is located substantially above or in contact with the lower batten.
  • the central regions of the slats upper and lower between their ends may be free at rest, including the case appropriate at the start of the low deflection of the batten higher until contact with said other of upper and lower slats with the top of the arched batten. Then, under increasing load heavy, the upper batten pushes the arched batten to deflect with the ends of it deviating and sliding on said one of the upper slats and lower. So when the load is relatively light, the amortization is relatively flexible, while when the load is heavy, depreciation is gradually hard for ultimately maintain the charge.
  • the stiffness of the arrangement of the three slats according to the invention is thus much more progressive than the arrangement of two slats according to the prior art.
  • the ends of the box spring have slots or orifices through which said one upper and lower slats. Thanks to these slots or holes, the ends of the leaf spring can slide on said one of the upper slats and lower not only during depreciation of a charge, but also when the user want to change the position of the leaf spring on along said one of the upper slats and lower to increase stiffness to one side of the bed base and reduce the stiffness of the other longitudinal side of the box spring.
  • the box spring can be removable of said one of the upper and lower slats without it being removed from the frame of the box spring so as to easily and quickly interchange the leaf spring with another leaf spring having a different stiffness, or position the leaf spring on another blade of the box spring.
  • the bed base comprises at least one other leaf spring, smaller or larger, supported by the aforementioned leaf spring.
  • the bed base comprises at least one other leaf spring, more or less curved than the aforementioned leaf spring, having ends slidingly supported on said one of the slats upper and lower.
  • the summit of the other leaf spring can be located substantially at near said other of the upper slats and lower, or above or below the spring to first mentioned blade.
  • the box spring comprises two upper slats located substantially above of the lower batten, the top or the ends of the leaf spring being located partly below each of the upper slats.
  • the stiffness of the slat arrangements lower and upper may be different in the same area of the box spring, or between areas different. More generally, when the box spring includes at least two upper slats respectively below two lower slats, two leaf springs are provided which are mounted respectively between the upper slats and the lower slats, which have stiffness different resulting from characteristics dimensional and / or mechanical differences between leaf springs.
  • an arrangement of slats for box spring includes an upper slat 1 and a lower slat 2 extending one above on the other transversely between two long sections 3 of the box spring frame.
  • the upper slat 1 again called “comfort batten”
  • the lower batten 2 also called “batten” reinforcement “or” counter-batten ", is at rest substantially straight, or upwardly convex.
  • the upper batten is thus more flexible than the batten lower.
  • each of the two fastening means 40 includes a single cushioning piece 40, called a ball joint, made of elastomer which has two lower holes for trunnions to be fixed in the underside of the respective long pan 3.
  • Two holes overlapping oblongs 41 and 42 are provided in the room damping 40 to plug in by force ends of the lower and upper slats 1 and 2.
  • Part 40 has other holes in part lower and upper and laterally so that the part 40 can be compressed and pivoted towards the front and back of the box spring along the long side respective 3.
  • each of the two fastening means includes a shock absorber connecting piece 43, called a ball joint, and a fixing support 44.
  • a shock absorber connecting piece 43 called a ball joint
  • Two ends 11 of two neighboring upper slats and parallels 1 in the box spring are coupled to two ends of two lower and parallel slats 2 into the box spring via the shock absorber link 43.
  • Part 43 has four sleeves plastics receiving the ends of the batten and bonded by an elastomer.
  • the connecting piece is embedded pivot about a horizontal axis in the support 44 removably embedded in the face inside of the long pan.
  • a leaf spring under the shape of a small arched batten 5 is interposed in the intermediate space between slats 1 and 2.
  • the batten 5 is curved upwards, i.e. clearly convex towards the upper slat 1.
  • the arrow F of the arched batten 5 is significantly less than the distance D between the slats 1 and 2, so that the upper slat 1 substantially convex is not in contact with the apex 51 of the arched batten 5.
  • the arched batten 5 according to the illustrated example is substantially in arc of circle, the portion of the lower slat 2 underlying to the arched batten constituting the cord C of the arc of a circle.
  • the batten 5 is curved in an elliptical or parabolic arc, preferably vertically symmetrical in order to balance the pressures exerted by the ends 52 of the batten curved 5 on the lower batten 2.
  • the ends 52 of the arched batten 5 form two simple sliding supports on the upper side of the lower batten 2.
  • the ends 52 of the arched batten are notched with two longitudinal slots 53 having a width substantially equal to that of the slat lower 2.
  • the slots 53 constitute sliders crossed and thus guided by the slat lower 2 and have sufficient depth so that the arched batten 5 can flourish in increasing its curvature without the ends 52 becoming release batten 2 when a load is applied to the top 51 of the arched batten 5.
  • the slots 53 are rectangular; according to other variants, the two slides formed by the slot pairs 53 and lower slat 2 can be of circular profile, triangular, trapezoidal or dovetailed, or you.
  • the slots 53 can almost completely frame two sections transverse of the lower batten 2 thanks to two projections 531 located at the ends of the slots of arched batten and underlying the lower batten, this prevents any involuntary release of the arched batten of the lower batten; in that case, the arched batten 5 is threaded onto the batten lower 2 before mounting the latter between the long sections 3.
  • the slots 53 are replaced by holes 53a crossed by the lower batten 5a, as shown in Figure 6.
  • the arched batten 5 is substantially positioned in the middle of the lower batten 2, and the apex 51 of the arched batten is thus substantially under the center of the upper batten 2.
  • a load CH is applied to the upper batten 1, for example when a person sits or lies down on the mattress supported by the box spring, the slat superior 1 deflects appreciably, and quickly the middle of the upper batten is sliding on the top 51 of the arched batten 5.
  • the slat arched 5 is deflected and the ends 52 of the batten 5 move away from each other while being guided along the lower batten 2 which plays its reinforcement role especially at the end of the deformation of the arched batten 5.
  • the damping of the battens under the weight of the load is thus progressive, and more and more resistant.
  • the constitution of the latte curved 5, material and dimensions, are determined so that the arched batten can return to its initial configuration when the load is removed, that is to say so that the deflection of the slat curved does not reach a critical value predetermined and is not irreversible.
  • the arched batten 5 is a batten wooden plywood, such as beech, which is composed of 3, 4 or 5 thin layers of beech glued together on the others and molded into a hanger.
  • the slat curved 5 at rest has an arrow F of 2.5 cm approximately and an active length C between ends support 52 of about 25 cm.
  • the thickness of the slat curved 5 is between 5 and 10 mm, like the slats 1 and 2, and has at least at the ends 52 a width less than 1.5 times the width of the lower batten 2.
  • the slots 53 can be covered with a surface layer of material anti-friction reducing the coefficient of friction between the arched batten 5 and the lower batten 2, or well formed in anti-friction material tips press fit and / or glued to ends of the arched batten.
  • the anti-friction material is a polymer, a resin epoxy, or a fluorinated plastic, such as PTFE.
  • the arched batten 5 is of thermoformed plastic, for example a olefinic polymer, such as polyethylene, polyvinyl chloride (PVC), or polystyrene, preferably transparent, or is metallic, by example in aluminum, or is in fiberglass.
  • a olefinic polymer such as polyethylene, polyvinyl chloride (PVC), or polystyrene
  • PVC polyvinyl chloride
  • polystyrene preferably transparent, or is metallic, by example in aluminum, or is in fiberglass.
  • a strip of copper or of copper alloy 54 is supported by the slat arched 5.
  • one or both slats upper 1 and lower 2 can support a strip of copper or copper alloy 14, 24.
  • the strip 54, 14, 24 is located on one of the upper faces or lower of the respective slat 5, 1, 2, and embedded in a longitudinal groove of the slat respective, or glued to the respective slat.
  • the lower reinforcing slats are for example 4, 5 or 6 in number and are situated in a central rectangular zone Z 3 of the bed base, where the kidneys and / or the pelvis of the user normally are rest, as shown in FIG. 2.
  • each of the lower slats supports a curved slat which can be positioned by sliding on the respective lower slat independently of the other curved slats, for example substantially in the center or laterally to the left or to right depending on the comfort desired by the user.
  • the bed base has several rectangular zones Z 1 to Z 5 delimited by separately adjustable sub-frames, manually or by electric motor MO, as shown in FIG. 2, the zone where the curved slats are installed can be fixed, or mobile.
  • zones Z 1 to Z 5 of the bed base have respective curved slats, the curved slats of one of the zones possibly having stiffnesses different from the curved slats of another zone.
  • the difference in stiffness results from curved slats having different lengths of rope C, that is to say different useful lengths between support ends 52, and / or different thicknesses e, and / or different arrows F, and / or different compositions and therefore mechanical characteristics of the curved slats, such as different longitudinal elastic modules, called Young E modules.
  • the stiffness of the curved slats is greater in the central zone Z 3 where the user's kidneys rest , than in zones Z 2 and Z 4 where normally the shoulders and thighs rest respectively, these two zones Z 2 and Z 4 often being mobile.
  • the reduction in stiffness and therefore the increase in flexibility for curved slats having given compositions and sections is obtained by increasing the useful length C and / or by reducing the deflection F.
  • the stiffness of a arched batten 5 located between at least one batten upper 1 and a lower slat 2 is modified by adding one or more curved slats.
  • one or more curved slats are arranged concentrically to the arched batten master 5 and are superimposed on the upper side and / or lower side of the slat mistress 5, and are preferably shorter than the master batten 5.
  • a 5S upper batten and a batten lower 51 are supported by the master batten curved 5 by means of two stirrups or sleeves sliding doors 55 in plastic.
  • curved slats are supported by a common lower slat 5.
  • two curved slats 5G and 5D preferably identical and symmetrically arranged are mounted on a slat lower 2 and receive a left charge CHG and a straight charge CHD, as shown in Figure 5.
  • the split or perforated ends 52G and 52D of the 5G and 5D curved slats are sliding on the common lower slat 2, and the vertices 51G and 51D of the 5G and 5D curved slats are located below of the upper batten 1, for example respectively to the left and to the right of the center of upper batten.
  • one of the two arched slats is shorter than the other batten and located below said other batten.
  • a lower slat 2a extends below both of two upper slats.
  • the summit 51a of a curved batten 5a according to the invention, the ends 52a, here at holes 53a, rest on the lower slat 2 is located under the gap between the two upper slats la and under parts central areas of the upper slats.
  • the width of the area at the top of the slat curved 5a, or the width l5 of the curved slat is substantially equal to the sum of the width l1 of a top batten la and the width lI of the gap between the two upper slats.
  • the two upper slats la and the lower slat 2a have their ends assembled in two pivoting fixing means suitable for receiving only three ends of the batten.
  • the two fixing means for fixing the ends of the three slats each consist of for example of a damping part 45 in elastomer as shown in figure 7.
  • Two holes upper oblongs 46 in room 45 receive at forces the ends of the upper slats.
  • a lower oblong hole 47 in room 45 receives at forces the end of the lower batten 2a.
  • In lower part of part 45 are formed two cylindrical holes 48 for passing two pins fixing on the respective long pan.
  • Between the oblong holes 46 and 47 and under hole 47 substantially other holes are drilled to cushion any load on the slats while ensuring pivoting in a parallel plane with long sides.
  • the batten lower 2a is replaced by two slats lower parallel and underlying the slats upper, having ends that plug into two adjacent oblong holes replacing the hole lower oblong 47.
  • a curved batten 5b according to the invention between two slats 1b and 2b is turned over relative to the slat 5 shown in Figure 1, and thus convex towards the lower batten 2b.
  • the ends 52b of the arched batten 5b are mounted at sliding on the underside of the slat upper 1b, and can be suspended from them by two slots or orifices 53b of one of the types described above.
  • the curved slat 5b is either above the lower batten 2b, or at contact of the lower batten 2b.
  • the top 51b of the slat 5b has a longitudinal groove or lumen 56 which is crossed longitudinally by the slat lower 2b.
  • a groove or light can be also provided in the arched batten 5 shown in the Figure 1 to receive the central part of the upper batten 1.
  • the batten upper deflects appreciably and the arched batten gradually deflects.
  • the top 51b of the latte curved 5b is supported by flattening substantially on the stiffer lower reinforcement strip 2b, while that the ends 52b of the arched batten move apart from each other and are guided along the batten superior 1b.
  • a curved slat 1b convex down can be superimposed on several others curved slats, as shown in figure 4, and / or associated with other arched slats mounted at sliding under the upper batten 1b, in a way analogous to the variant according to FIG. 5, and / or slidably mounted under two upper slats and above a bottom batten, in a way similar to the variant according to FIG. 6.

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  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Invalid Beds And Related Equipment (AREA)

Abstract

The bed base comprises an upper batten (1) and a lower batten (2) which extend one above the other between two ends (3) of the bed frame. The batten ends are fixed by an elastomer shock absorbing piece (40) to the frame ends. An arched leaf spring (5) has its ends (52) mounted to slide on lower batten and a top (51) situated under or in contact with the upper batten. The ends of the leaf spring have slots (53) passed through by the lower batten. The bed upper and lower battens have an adjustable stiffness and for a given adjustment offer progressive stiffness as a function of their load as well as progressive shock absorbing of the load.

Description

La présente invention concerne un sommier comprenant au moins une latte supérieure et une latte inférieure.The present invention relates to a box spring comprising at least one upper batten and one batten lower.

Dans un tel sommier pour lit à zones réglables ou fixes, deux niveaux de lattes transversales en bois sont prévus dans la zone centrale du sommier destinée à recevoir normalement les reins et le bassin d'un usager, c'est-à-dire la partie du corps de l'usager la plus lourde. Le premier niveau de lattes est défini par des lattes supérieures et est coplanaire avec les lattes des autres zones du sommier, lorsque le sommier est plat. Le second niveau de lattes est défini par des lattes inférieures, dites lattes de renfort, qui sont sous-jacentes respectivement aux lattes supérieures dans la zone centrale du sommier et peuvent venir en contact avec celles-ci.In such a box spring for adjustable areas or fixed, two levels of transverse slats in wood are provided in the central area of the box spring intended to normally receive the kidneys and a user's pelvis, that is, the part of the body of the heaviest user. The first level of slats is defined by upper slats and is coplanar with the slats of the other areas of the box spring, when the bed base is flat. The second slat level is defined by slats lower, called reinforcement slats, which are underlying respectively to the upper slats in the central area of the box spring and can come in contact with them.

Les lattes inférieures et supérieures sont appariées au moyen de curseurs en matière plastique. En particulier, deux curseurs de réglage de fermeté sont montés à coulissement au voisinage à la fois des zones centrales d'une latte supérieure et d'une latte inférieure de manière à augmenter ou diminuer la raideur de la paire de lattes inférieure et supérieure, en écartant plus ou moins les curseurs, et ainsi augmenter ou diminuer la fermeté de la zone centrale du sommier.The lower and upper slats are matched using plastic sliders. In particular, two firmness adjustment sliders are slidably mounted in the vicinity of both central areas of an upper batten and a batten lower so as to increase or decrease the stiffness of the lower pair of slats and higher, by moving the sliders more or less, and thus increase or decrease the firmness of the area central of the box spring.

Pour une position donnée des curseurs, la plage de variation de la raideur de la paire de lattes supérieure et inférieure est très faible en raison du couplage ferme et constant de deux lattes par le curseur. Malgré le réglage en position du curseur, la zone centrale du sommier offre une raideur relativement élevée quelle que soit la charge supportée.For a given cursor position, the range variation in the stiffness of the pair of slats upper and lower is very small due to the firm and constant coupling of two slats by the cursor. Despite the cursor position adjustment, the central area of the box spring offers stiffness relatively high whatever the load supported.

La présente invention vise à fournir un agencement de lattes supérieure et inférieure dont la raideur est également réglable, mais qui pour un réglage donné, offre une progression de la raideur en fonction de la charge, et ainsi un amortissement plus progressif de la charge.The present invention aims to provide a arrangement of upper and lower slats, the stiffness is also adjustable, but which for a given setting, offers stiffness progression in load function, and thus more damping progressive load.

A cette fin, un sommier comprenant au moins une latte supérieure et une latte inférieure, est caractérisé en ce qu'il comprend un ressort à lame cintré ayant des extrémités montées à glissement sur l'une des lattes supérieure et inférieure et un sommet situé sensiblement à proximité de l'autre des lattes supérieure et inférieure. Les termes "sensiblement à proximité de" signifient au sens de l'invention "à une faible distance de" ou "au contact de".To this end, a box spring comprising at least one upper batten and a lower batten, is characterized in that it comprises a leaf spring curved having ends slidably mounted on one of the upper and lower slats and a vertex located substantially close to each other upper and lower slats. Terms "substantially close to" means in the sense of the invention "a short distance from" or "in contact of".

Par exemple, le ressort à lame est une latte cintrée en matière noble, telle que bois, en harmonie avec les lattes des sommiers traditionnels.For example, the leaf spring is a batten curved in noble material, such as wood, in harmony with the slats of the traditional box springs.

Selon une première réalisation, le ressort à lame est une latte convexe en direction de la latte supérieure. Les extrémités de ressort à lame s'appuient alors à glissement sur la latte inférieure et le sommet du ressort à lame est situé sensiblement au-dessous de ou au contact de la latte supérieure.According to a first embodiment, the spring to blade is a convex slat in the direction of the slat superior. Leaf spring ends then slide against the lower batten and the top of the leaf spring is located substantially below or in contact with the upper batten.

Selon une seconde réalisation, le ressort à lame est une latte convexe en direction de la latte inférieure. Les extrémités de ressort à lame s'appuient à glissement sur ou sont suspendues à la latte supérieure et le sommet du ressort à lame est situé sensiblement au-dessus de ou au contact de la latte inférieure.According to a second embodiment, the leaf spring is a convex slat towards the slat lower. Leaf spring ends lean on or hang from the upper batten and the top of the leaf spring is located substantially above or in contact with the lower batten.

Dans chaque agencement à trois lattes selon l'invention, les régions centrales des lattes supérieure et inférieure entre leurs extrémités peuvent être libres au repos, y compris le cas échéant au début de la faible déflexion de la latte supérieure jusqu'au contact de ladite autre des lattes supérieure et inférieure avec le sommet de la latte cintrée. Puis, sous la charge de plus en plus lourde, la latte supérieure pousse la latte cintrée à défléchir avec les extrémités de celle-ci s'écartant et glissant sur ladite une des lattes supérieure et inférieure. Ainsi, lorsque la charge est relativement légère, l'amortissement est relativement souple, tandis que lorsque la charge est lourde, l'amortissement est progressivement dur pour finalement maintenir la charge. La raideur de l'agencement des trois lattes selon l'invention est ainsi beaucoup plus progressive que l'agencement de deux lattes selon la technique antérieure.In each arrangement with three slats according to the invention, the central regions of the slats upper and lower between their ends may be free at rest, including the case appropriate at the start of the low deflection of the batten higher until contact with said other of upper and lower slats with the top of the arched batten. Then, under increasing load heavy, the upper batten pushes the arched batten to deflect with the ends of it deviating and sliding on said one of the upper slats and lower. So when the load is relatively light, the amortization is relatively flexible, while when the load is heavy, depreciation is gradually hard for ultimately maintain the charge. The stiffness of the arrangement of the three slats according to the invention is thus much more progressive than the arrangement of two slats according to the prior art.

Les extrémités du ressort à lame du sommier ont des fentes ou des orifices traversés par ladite une des lattes supérieure et inférieure. Grâce à ces fentes ou orifices, les extrémités du ressort à lame peuvent glisser sur ladite une des lattes supérieure et inférieure non seulement pendant l'amortissement d'une charge, mais également lorsque l'usager souhaite modifier la position du ressort à lame le long de ladite une des lattes supérieure et inférieure pour augmenter la raideur vers un côté longitudinal du sommier et diminuer la raideur de l'autre côté longitudinal du sommier. The ends of the box spring have slots or orifices through which said one upper and lower slats. Thanks to these slots or holes, the ends of the leaf spring can slide on said one of the upper slats and lower not only during depreciation of a charge, but also when the user want to change the position of the leaf spring on along said one of the upper slats and lower to increase stiffness to one side of the bed base and reduce the stiffness of the other longitudinal side of the box spring.

Le ressort à lame du sommier peut être amovible de ladite une des lattes supérieure et inférieure sans que celle-ci soit retirée du cadre du sommier de manière à facilement et rapidement interchanger le ressort à lame avec un autre ressort à lame ayant une raideur différente, ou positionner le ressort à lame sur une autre lame du sommier.The box spring can be removable of said one of the upper and lower slats without it being removed from the frame of the box spring so as to easily and quickly interchange the leaf spring with another leaf spring having a different stiffness, or position the leaf spring on another blade of the box spring.

Pour modifier la raideur de l'agencement à trois "lattes" selon l'invention, un ou plusieurs ressorts à lame cintrés peuvent être ajoutés. Selon une première variante, le sommier comprend au moins un autre ressort à lame, plus petit ou plus grand, supporté par le ressort à lame précité. Selon une seconde variante, le sommier comprend au moins un autre ressort à lame, plus ou moins cintré que le ressort à lame précité, ayant des extrémités s'appuyant à glissement sur ladite une des lattes supérieure et inférieure. Le sommet de l'autre ressort à lame peut être situé sensiblement à proximité de ladite autre des lattes supérieure et inférieure, ou au-dessus ou au-dessous du ressort à lame premièrement précité.To change the stiffness of the three-way arrangement "slats" according to the invention, one or more springs curved blades can be added. According to one first variant, the bed base comprises at least one other leaf spring, smaller or larger, supported by the aforementioned leaf spring. According to one second variant, the bed base comprises at least one other leaf spring, more or less curved than the aforementioned leaf spring, having ends slidingly supported on said one of the slats upper and lower. The summit of the other leaf spring can be located substantially at near said other of the upper slats and lower, or above or below the spring to first mentioned blade.

Selon une autre réalisation, le sommier comprend deux lattes supérieures situées sensiblement au-dessus de la latte inférieure, le sommet ou les extrémités du ressort à lame étant situé en partie au-dessous de chacune des lattes supérieures.According to another embodiment, the box spring comprises two upper slats located substantially above of the lower batten, the top or the ends of the leaf spring being located partly below each of the upper slats.

Les raideurs des agencements de lattes inférieure et supérieure peuvent être différentes dans une même zone du sommier, ou entre zones différentes. Plus généralement, lorsque le sommier comprend au moins deux lattes supérieures respectivement au-dessous de deux lattes inférieures, il est prévu deux ressorts à lame qui sont montés respectivement entre les lattes supérieures et les lattes inférieures, et qui ont des raideurs différentes résultant de caractéristiques dimensionnelles et/ou mécaniques différentes entre ressorts à lame.The stiffness of the slat arrangements lower and upper may be different in the same area of the box spring, or between areas different. More generally, when the box spring includes at least two upper slats respectively below two lower slats, two leaf springs are provided which are mounted respectively between the upper slats and the lower slats, which have stiffness different resulting from characteristics dimensional and / or mechanical differences between leaf springs.

D'autres caractéristiques et avantages de la présente invention apparaítront plus clairement à la lecture de la description suivante de plusieurs réalisations préférées de l'invention en référence aux dessins annexés correspondants dans lesquels :

  • la figure 1 est une vue en perspective schématique d'un agencement d'une latte supérieure et d'une latte inférieure supportant une latte cintrée dans un sommier selon une première réalisation de l'invention ;
  • la figure 2 est une vue en bout d'une extrémité à fente en té de la latte cintrée ;
  • la figure 3 est une vue en perspective d'un sommier réglable comportant au moins une zone de lattes avec lattes cintrées selon l'invention ;
  • la figure 4 est une vue de côté longitudinale d'un agencement de lattes avec un ressort à lame du type multilatte cintrée selon une première variante de l'invention ;
  • la figure 5 est une vue de côté longitudinale d'un agencement de lattes avec deux lattes cintrées sur une latte inférieure commune selon une seconde variante de l'invention ;
  • la figure 6 est une vue en coupe transversale au voisinage d'une extrémité d'un agencement de lattes selon une autre variante de l'invention, comprenant une latte inférieure avec une latte cintrée selon l'invention chevauchant le dessous de deux lattes supérieures ;
  • la figure 7 est une vue en perspective d'une pièce d'amortissement pour la variante selon la figure 6 ; et
  • la figure 8 est une vue en perspective schématique d'un agencement d'une latte supérieure, d'une latte inférieure et d'une latte cintrée dont les extrémités sont montées à glissement sur la latte supérieure selon une seconde réalisation de l'invention.
Other characteristics and advantages of the present invention will appear more clearly on reading the following description of several preferred embodiments of the invention with reference to the corresponding appended drawings in which:
  • Figure 1 is a schematic perspective view of an arrangement of an upper batten and a lower batten supporting a curved batten in a box spring according to a first embodiment of the invention;
  • Figure 2 is an end view of a t-slot end of the arched batten;
  • Figure 3 is a perspective view of an adjustable base comprising at least one area of slats with curved slats according to the invention;
  • FIG. 4 is a longitudinal side view of an arrangement of slats with a leaf spring of the curved multilate type according to a first variant of the invention;
  • Figure 5 is a longitudinal side view of an arrangement of slats with two curved slats on a common lower slat according to a second variant of the invention;
  • Figure 6 is a cross-sectional view in the vicinity of one end of an arrangement of slats according to another variant of the invention, comprising a lower slat with a curved slat according to the invention overlapping the underside of two upper slats;
  • Figure 7 is a perspective view of a damping piece for the variant according to Figure 6; and
  • Figure 8 is a schematic perspective view of an arrangement of an upper batten, a lower batten and a curved batten whose ends are slidably mounted on the upper batten according to a second embodiment of the invention.

En référence à la figure 1, un agencement de lattes pour sommier comprend une latte supérieure 1 et une latte inférieure 2 s'étendant l'une au-dessus de l'autre transversalement entre deux longs-pans 3 du cadre du sommier. La latte supérieure 1, encore appelée "latte de confort", est au repos sensiblement convexe vers le haut et est propre à soutenir un matelas. La latte inférieure 2, encore appelée "latte de renfort" ou "contre-latte", est au repos sensiblement rectiligne, ou convexe vers le haut. La latte supérieure est ainsi plus flexible que la latte inférieure.Referring to Figure 1, an arrangement of slats for box spring includes an upper slat 1 and a lower slat 2 extending one above on the other transversely between two long sections 3 of the box spring frame. The upper slat 1, again called "comfort batten", is at rest substantially convex upwards and is suitable for supporting a mattress. The lower batten 2, also called "batten" reinforcement "or" counter-batten ", is at rest substantially straight, or upwardly convex. The upper batten is thus more flexible than the batten lower.

Les extrémités 11, 12 de chacune des lattes supérieure et inférieure 1 et 2 sont fixées à pivotement et de manière amovible contre les faces intérieures en regard des longs-pans 3 par deux moyens de fixation connus représentés schématiquement dans la figure 1.The ends 11, 12 of each of the slats upper and lower 1 and 2 are fixed at pivoting and removably against the faces interior facing long sections 3 by two known fixing means shown diagrammatically in figure 1.

Selon une première variante, chacun des deux moyens de fixation 40, comme montré à gauche dans la figure 1, comprend une seule pièce d'amortissement 40, dite rotule, en élastomère qui présente deux trous inférieurs pour des tourillons à fixer dans la face inférieure du long-pan respectif 3. Deux trous oblongs superposés 41 et 42 sont prévus dans la pièce d'amortissement 40 pour y enficher à force des extrémités des lattes inférieure et supérieure 1 et 2. La pièce 40 comprend d'autres trous en partie inférieure et supérieure et latéralement afin que la pièce 40 puisse être compressée et pivoter vers l'avant et l'arrière du sommier le long du long-pan respectif 3.According to a first variant, each of the two fastening means 40, as shown on the left in the Figure 1, includes a single cushioning piece 40, called a ball joint, made of elastomer which has two lower holes for trunnions to be fixed in the underside of the respective long pan 3. Two holes overlapping oblongs 41 and 42 are provided in the room damping 40 to plug in by force ends of the lower and upper slats 1 and 2. Part 40 has other holes in part lower and upper and laterally so that the part 40 can be compressed and pivoted towards the front and back of the box spring along the long side respective 3.

Selon une seconde variante, chacun des deux moyens de fixation, comme montré à droite dans la figure 1, comprend une pièce de liaison amortisseur 43, dite rotule, et un support de fixation 44. Deux extrémités 11 de deux lattes supérieures voisines et parallèles 1 dans le sommier sont accouplées à deux extrémités de deux lattes inférieures et parallèles 2 dans le sommier par l'intermédiaire de la pièce de liaison amortisseur 43. La pièce 43 a quatre manchons plastiques recevant les extrémités de latte et liés par un élastomère. La pièce de liaison est encastrée à pivotement autour d'un axe horizontal dans le support 44 encastré de manière amovible dans la face intérieure du long-pan. Lorsque le sommier comporte des sous-cadres réglables à l'intérieur du cadre du sommier, les supports 44 peuvent être encastrés dans les longs-pans de l'un des sous-cadres.According to a second variant, each of the two fastening means, as shown on the right in the Figure 1, includes a shock absorber connecting piece 43, called a ball joint, and a fixing support 44. Two ends 11 of two neighboring upper slats and parallels 1 in the box spring are coupled to two ends of two lower and parallel slats 2 into the box spring via the shock absorber link 43. Part 43 has four sleeves plastics receiving the ends of the batten and bonded by an elastomer. The connecting piece is embedded pivot about a horizontal axis in the support 44 removably embedded in the face inside of the long pan. When the box spring has adjustable sub-frames inside the frame of the box spring, supports 44 can be recessed in the long sections of one of the sub-frames.

Selon l'invention, un ressort à lame sous la forme d'une petite latte cintrée 5 est intercalé dans l'espace intermédiaire entre les lattes 1 et 2. La latte 5 est cintrée vers le haut, c'est-à-dire nettement convexe en direction de la latte supérieure 1. Au repos, la flèche F de la latte cintrée 5 est sensiblement inférieure à la distance D entre les lattes 1 et 2, si bien que la latte supérieure 1 sensiblement convexe n'est pas en contact avec le sommet 51 de la latte cintrée 5. La latte cintrée 5 selon l'exemple illustré est sensiblement en arc de cercle, la portion de la latte inférieure 2 sous-jacente à la latte cintrée constituant la corde C de l'arc de cercle.According to the invention, a leaf spring under the shape of a small arched batten 5 is interposed in the intermediate space between slats 1 and 2. The batten 5 is curved upwards, i.e. clearly convex towards the upper slat 1. At rest, the arrow F of the arched batten 5 is significantly less than the distance D between the slats 1 and 2, so that the upper slat 1 substantially convex is not in contact with the apex 51 of the arched batten 5. The arched batten 5 according to the illustrated example is substantially in arc of circle, the portion of the lower slat 2 underlying to the arched batten constituting the cord C of the arc of a circle.

Selon d'autres variantes, la latte 5 est cintrée en arc elliptique ou parabolique, de préférence symétrique verticalement afin d'équilibrer les pressions exercées par les extrémités 52 de la latte cintrée 5 sur la latte inférieure 2.According to other variants, the batten 5 is curved in an elliptical or parabolic arc, preferably vertically symmetrical in order to balance the pressures exerted by the ends 52 of the batten curved 5 on the lower batten 2.

Les extrémités 52 de la latte cintrée 5 forment deux simples appuis glissants sur la face supérieure de la latte inférieure 2. Selon la réalisation illustrée, les extrémités 52 de la latte cintrée sont entaillées de deux fentes longitudinales 53 ayant une largeur sensiblement égale à celle de la latte inférieure 2. Les fentes 53 constituent des coulisseaux traversés et ainsi guidés par la latte inférieure 2 et présentent une profondeur suffisante pour que la latte cintrée 5 puisse s'épanouir en augmentant sa courbure sans que les extrémités 52 se dégagent de la latte 2 lorsqu'une charge est appliquée sur le sommet 51 de la latte cintrée 5. Selon la réalisation illustrée, les fentes 53 sont rectangulaires ; selon d'autres variantes, les deux glissières formées par les couples de fente 53 et latte inférieure 2 peuvent être à profil circulaire, triangulaire, trapézoïdal ou en queue d'aronde, ou en té. Pour toutes ces variantes, comme montré pour un profil en té dans la figure 2, les fentes 53 peuvent encadrer presque complètement deux sections transversales de la latte inférieure 2 grâce à deux ressauts 531 situés aux extrémités des fentes de latte cintrée et sous-jacents à la latte inférieure, ce qui empêche tout dégagement involontaire de la latte cintrée de la latte inférieure ; dans ce cas, la latte cintrée 5 est enfilée sur la latte inférieure 2 avant le montage de cette dernière entre les longs-pans 3. Selon d'autres variantes, les fentes 53 sont remplacées par des orifices 53a traversés par la latte inférieure 5a, comme montré à la figure 6.The ends 52 of the arched batten 5 form two simple sliding supports on the upper side of the lower batten 2. According to the embodiment illustrated, the ends 52 of the arched batten are notched with two longitudinal slots 53 having a width substantially equal to that of the slat lower 2. The slots 53 constitute sliders crossed and thus guided by the slat lower 2 and have sufficient depth so that the arched batten 5 can flourish in increasing its curvature without the ends 52 becoming release batten 2 when a load is applied to the top 51 of the arched batten 5. According to the illustrated embodiment, the slots 53 are rectangular; according to other variants, the two slides formed by the slot pairs 53 and lower slat 2 can be of circular profile, triangular, trapezoidal or dovetailed, or you. For all these variants, as shown for a tee profile in Figure 2, the slots 53 can almost completely frame two sections transverse of the lower batten 2 thanks to two projections 531 located at the ends of the slots of arched batten and underlying the lower batten, this prevents any involuntary release of the arched batten of the lower batten; in that case, the arched batten 5 is threaded onto the batten lower 2 before mounting the latter between the long sections 3. According to other variants, the slots 53 are replaced by holes 53a crossed by the lower batten 5a, as shown in Figure 6.

En pratique, la latte cintrée 5 est sensiblement positionnée au milieu de la latte inférieure 2, et le sommet 51 de la latte cintrée est ainsi sensiblement sous le centre de la latte supérieure 2. Lorsqu'une charge CH est appliquée sur la latte supérieure 1, par exemple lorsqu'une personne s'assoie ou s'allonge sur le matelas supporté par le sommier, la latte supérieure 1 défléchit sensiblement, et rapidement le milieu de la latte supérieure s'appuie à glissement sur le sommet 51 de la latte cintrée 5. Progressivement sous l'effet de la charge, la latte cintrée 5 est défléchie et les extrémités 52 de la latte 5 s'écartent l'une de l'autre tout en étant guidées le long de la latte inférieure 2 qui joue son rôle de renfort surtout à la fin de la déformation de la latte cintrée 5. L'amortissement des lattes sous le poids de la charge est ainsi progressif, et de plus en plus résistant. La constitution de la latte cintrée 5, matériau et dimensions, sont déterminés afin que la latte cintrée puisse revenir à sa configuration initiale lorsque la charge est retirée, c'est-à-dire de sorte que la déflexion de la latte cintrée n'atteigne pas une valeur critique prédéterminée et ne soit pas irréversible.In practice, the arched batten 5 is substantially positioned in the middle of the lower batten 2, and the apex 51 of the arched batten is thus substantially under the center of the upper batten 2. When a load CH is applied to the upper batten 1, for example when a person sits or lies down on the mattress supported by the box spring, the slat superior 1 deflects appreciably, and quickly the middle of the upper batten is sliding on the top 51 of the arched batten 5. Gradually under the effect of the load, the slat arched 5 is deflected and the ends 52 of the batten 5 move away from each other while being guided along the lower batten 2 which plays its reinforcement role especially at the end of the deformation of the arched batten 5. The damping of the battens under the weight of the load is thus progressive, and more and more resistant. The constitution of the latte curved 5, material and dimensions, are determined so that the arched batten can return to its initial configuration when the load is removed, that is to say so that the deflection of the slat curved does not reach a critical value predetermined and is not irreversible.

Par exemple, la latte cintrée 5 est une latte multiplis en bois, tel que hêtre, qui est composée de 3, 4 ou 5 couches minces de hêtre collées les unes sur les autres et moulées en un cintre. Pour un sommier de lit avec des lattes 1, 2 de longueur de 80 cm environ, et une distance D de 3 cm entre lattes supérieures 1 et lattes inférieures 2, la latte cintrée 5 au repos présente une flèche F de 2,5 cm environ et une longueur active C entre extrémités d'appui 52 d'environ 25 cm. L'épaisseur de la latte cintrée 5 est comprise entre 5 et 10 mm, comme les lattes 1 et 2, et a au moins au niveau des extrémités 52 une largeur inférieure à 1,5 fois la largeur de la latte inférieure 2.For example, the arched batten 5 is a batten wooden plywood, such as beech, which is composed of 3, 4 or 5 thin layers of beech glued together on the others and molded into a hanger. For a bed base with slats 1, 2 of length 80 about cm, and a distance D of 3 cm between slats upper 1 and lower slats 2, the slat curved 5 at rest has an arrow F of 2.5 cm approximately and an active length C between ends support 52 of about 25 cm. The thickness of the slat curved 5 is between 5 and 10 mm, like the slats 1 and 2, and has at least at the ends 52 a width less than 1.5 times the width of the lower batten 2.

Afin d'éviter l'usure par frottement des fentes d'extrémité 53, particulièrement lorsque la latte cintrée 5 est en bois, les fentes 53 peuvent être recouvertes d'une couche superficielle en matière anti-friction diminuant le coefficient de frottement entre la latte cintrée 5 et la latte inférieure 2, ou bien être formées dans des embouts en matière anti-friction emmanchés à force et/ou collées aux extrémités de la latte cintrée. Par exemple, la matière anti-friction est un polymère, une résine époxyde, ou une matière plastique fluorée, telle que PTFE.In order to avoid wear by friction of the slots end 53, especially when the batten arched 5 is made of wood, the slots 53 can be covered with a surface layer of material anti-friction reducing the coefficient of friction between the arched batten 5 and the lower batten 2, or well formed in anti-friction material tips press fit and / or glued to ends of the arched batten. For example, the anti-friction material is a polymer, a resin epoxy, or a fluorinated plastic, such as PTFE.

Selon d'autres variantes, la latte cintrée 5 est en matière plastique thermoformée, par exemple un polymère oléfinique, tel que polyéthylène, du polychlorure de vinyle (PVC), ou un polystyrène, de préférence transparent, ou est métallique, par exemple en aluminium, ou est en fibre de verre.According to other variants, the arched batten 5 is of thermoformed plastic, for example a olefinic polymer, such as polyethylene, polyvinyl chloride (PVC), or polystyrene, preferably transparent, or is metallic, by example in aluminum, or is in fiberglass.

Afin dans une certaine mesure d'éliminer un excès d'électricité statique et de réguler l'équilibre bio-électromagnétique de l'usager reposant sur le sommier, une bande de cuivre ou d'alliage cuivré 54 est supportée par la latte cintrée 5. De même, l'une ou les deux lattes supérieure 1 et inférieure 2 peuvent supporter une bande de cuivre ou d'alliage cuivré 14, 24. La bande 54, 14, 24 est située sur l'une des faces supérieure ou inférieure de la latte respective 5, 1, 2, et encastrée dans une rainure longitudinale de la latte respective, ou collée sur la latte respective.In order to some extent to eliminate a excess static electricity and regulate the bio-electromagnetic balance of the user resting on the box spring, a strip of copper or of copper alloy 54 is supported by the slat arched 5. Similarly, one or both slats upper 1 and lower 2 can support a strip of copper or copper alloy 14, 24. The strip 54, 14, 24 is located on one of the upper faces or lower of the respective slat 5, 1, 2, and embedded in a longitudinal groove of the slat respective, or glued to the respective slat.

Selon une première réalisation de sommier, les lattes inférieures de renfort sont par exemple au nombre de 4, 5 ou 6 et sont situées dans une zone rectangulaire centrale Z3 du sommier, là où normalement les reins et/ou le bassin de l'usager reposent, comme montré à la figure 2. Selon l'invention, chacune des lattes inférieures supporte une latte cintrée qui peut être positionnée par glissement sur la latte inférieure respective indépendamment des autres lattes cintrées, par exemple sensiblement au centre ou latéralement à gauche ou à droite en fonction du confort souhaité par l'usager. Lorsque le sommier a plusieurs zones rectangulaires Z1 à Z5 délimitées par des sous-cadres réglables séparément, manuellement ou par moteur électrique MO, comme montré à la figure 2, la zone où les lattes cintrées sont installées peut être fixe, ou mobile.According to a first embodiment of the bed base, the lower reinforcing slats are for example 4, 5 or 6 in number and are situated in a central rectangular zone Z 3 of the bed base, where the kidneys and / or the pelvis of the user normally are rest, as shown in FIG. 2. According to the invention, each of the lower slats supports a curved slat which can be positioned by sliding on the respective lower slat independently of the other curved slats, for example substantially in the center or laterally to the left or to right depending on the comfort desired by the user. When the bed base has several rectangular zones Z 1 to Z 5 delimited by separately adjustable sub-frames, manually or by electric motor MO, as shown in FIG. 2, the zone where the curved slats are installed can be fixed, or mobile.

Selon une autre réalisation, plusieurs zones Z1 à Z5 du sommier comportent des lattes cintrées respectives, les lattes cintrées de l'une des zones pouvant avoir des raideurs différentes des lattes cintrées d'une autre zone. La différence de raideurs résulte de lattes cintrées ayant différentes longueurs de corde C, c'est-à-dire différentes longueurs utiles entre extrémités d'appui 52, et/ou différentes épaisseurs e, et/ou différentes flèches F, et/ou différentes compositions et donc caractéristiques mécaniques des lattes cintrées, telles que différents modules d'élasticité longitudinaux, dits modules d'Young E. Par exemple, la raideur des lattes cintrées est plus importante dans la zone centrale Z3 où les reins de l'usager reposent, que dans les zones Z2 et Z4 où normalement les épaules et les cuisses reposent respectivement, ces deux zones Z2 et Z4 étant souvent mobiles. La diminution de la raideur et donc l'augmentation de la flexibilité pour des lattes cintrées ayant des compositions et sections données est obtenue en augmentant la longueur utile C et/ou en diminuant la flèche F.According to another embodiment, several zones Z 1 to Z 5 of the bed base have respective curved slats, the curved slats of one of the zones possibly having stiffnesses different from the curved slats of another zone. The difference in stiffness results from curved slats having different lengths of rope C, that is to say different useful lengths between support ends 52, and / or different thicknesses e, and / or different arrows F, and / or different compositions and therefore mechanical characteristics of the curved slats, such as different longitudinal elastic modules, called Young E modules. For example, the stiffness of the curved slats is greater in the central zone Z 3 where the user's kidneys rest , than in zones Z 2 and Z 4 where normally the shoulders and thighs rest respectively, these two zones Z 2 and Z 4 often being mobile. The reduction in stiffness and therefore the increase in flexibility for curved slats having given compositions and sections is obtained by increasing the useful length C and / or by reducing the deflection F.

Selon deux autres variantes, la raideur d'une latte cintrée 5 située entre au moins une latte supérieure 1 et une latte inférieure 2 est modifiée en ajoutant une ou plusieurs lattes cintrées.According to two other variants, the stiffness of a arched batten 5 located between at least one batten upper 1 and a lower slat 2 is modified by adding one or more curved slats.

Selon une première variante, une ou plusieurs lattes cintrées sont disposées concentriquement à la latte cintrée maítresse 5 et sont superposées sur la face supérieure et/ou la face inférieure de la latte maítresse 5, et sont de préférence plus courtes que la latte maítresse 5. Selon l'exemple illustré à la figure 4, une latte supérieure 5S et une latte inférieure 51 sont supportées par la latte maítresse cintrée 5 au moyen de deux étriers ou manchons coulissants 55 en matière plastique.According to a first variant, one or more curved slats are arranged concentrically to the arched batten master 5 and are superimposed on the upper side and / or lower side of the slat mistress 5, and are preferably shorter than the master batten 5. According to the example illustrated in the Figure 4, a 5S upper batten and a batten lower 51 are supported by the master batten curved 5 by means of two stirrups or sleeves sliding doors 55 in plastic.

Selon une seconde variante qui est avantageuse pour un lit à deux places avec une largeur de 140 cm environ, plusieurs lattes cintrées sont supportées par une latte inférieure commune 5. Par exemple, deux lattes cintrées 5G et 5D, de préférence identiques et disposées symétriquement sont montées sur une latte inférieure 2 et reçoivent une charge gauche CHG et une charge droite CHD, comme montré à la figure 5. Les extrémités fendues ou trouées 52G et 52D des lattes cintrées 5G et 5D s'appuient à glissement sur la latte inférieure commune 2, et les sommets 51G et 51D des lattes cintrées 5G et 5D sont situés au-dessous de la latte supérieure 1, par exemple respectivement à gauche et à droite du centre de latte supérieure. Selon une autre variante ayant des effets analogues à celle selon la figure 4, l'une des deux lattes cintrées est plus courte que l'autre latte et située dessous ladite autre latte.According to a second variant which is advantageous for a double bed with a width of 140 cm approximately, several curved slats are supported by a common lower slat 5. For example, two curved slats 5G and 5D, preferably identical and symmetrically arranged are mounted on a slat lower 2 and receive a left charge CHG and a straight charge CHD, as shown in Figure 5. The split or perforated ends 52G and 52D of the 5G and 5D curved slats are sliding on the common lower slat 2, and the vertices 51G and 51D of the 5G and 5D curved slats are located below of the upper batten 1, for example respectively to the left and to the right of the center of upper batten. According to another variant having effects similar to that according to FIG. 4, one of the two arched slats is shorter than the other batten and located below said other batten.

Selon une autre variante montrée à la figure 6, une latte inférieure 2a s'étend au-dessous à la fois de deux lattes supérieures la. Le sommet 51a d'une latte cintrée 5a selon l'invention dont les extrémités 52a, ici à orifices 53a, s'appuient sur la latte inférieure 2 est situé sous l'interstice entre les deux lattes supérieures la et sous des parties des zones centrales des lattes supérieures. Par exemple, la largeur de la zone au sommet de la latte cintrée 5a, ou la largeur ℓ5 de la latte cintrée, est sensiblement égale à la somme de la largeur ℓ1 d'une latte supérieure la et de la largeur ℓI de l'interstice entre les deux lattes supérieures. Dans cette réalisation, les deux lattes supérieures la et la latte inférieure 2a ont leurs extrémités rassemblées dans deux moyens de fixation à pivotement propres à ne recevoir que trois extrémités de latte.According to another variant shown in FIG. 6, a lower slat 2a extends below both of two upper slats. The summit 51a of a curved batten 5a according to the invention, the ends 52a, here at holes 53a, rest on the lower slat 2 is located under the gap between the two upper slats la and under parts central areas of the upper slats. By example, the width of the area at the top of the slat curved 5a, or the width ℓ5 of the curved slat, is substantially equal to the sum of the width ℓ1 of a top batten la and the width ℓI of the gap between the two upper slats. In this realization, the two upper slats la and the lower slat 2a have their ends assembled in two pivoting fixing means suitable for receiving only three ends of the batten.

Les deux moyens de fixation pour fixer les extrémités des trois lattes sont constitués chacun par exemple d'une pièce d'amortissement 45 en élastomère comme montré à la figure 7. Deux trous oblongs supérieurs 46 dans la pièce 45 reçoivent à force les extrémités des lattes supérieures la. Un trou oblong inférieur 47 dans la pièce 45 reçoit à force l'extrémité de la latte inférieure 2a. En partie inférieure de la pièce 45 sont ménagés deux trous cylindriques 48 pour y passer deux tourillons de fixation sur le long-pan respectif. Entre les trous oblongs 46 et 47 et sous le trou 47 sensiblement central sont pratiqués d'autres trous afin d'amortir toute charge exercée sur les lattes tout en assurant un pivotement dans un plan parallèle aux longs-pans. Selon une autre variante, la latte inférieure 2a est remplacée par deux lattes inférieures parallèles et sous-jacentes aux lattes supérieures, ayant des extrémités s'enfichant dans deux trous oblongs adjacents remplaçant le trou oblong inférieur 47.The two fixing means for fixing the ends of the three slats each consist of for example of a damping part 45 in elastomer as shown in figure 7. Two holes upper oblongs 46 in room 45 receive at forces the ends of the upper slats. A lower oblong hole 47 in room 45 receives at forces the end of the lower batten 2a. In lower part of part 45 are formed two cylindrical holes 48 for passing two pins fixing on the respective long pan. Between the oblong holes 46 and 47 and under hole 47 substantially other holes are drilled to cushion any load on the slats while ensuring pivoting in a parallel plane with long sides. According to another variant, the batten lower 2a is replaced by two slats lower parallel and underlying the slats upper, having ends that plug into two adjacent oblong holes replacing the hole lower oblong 47.

Selon une seconde réalisation montrée à la figure 8, une latte cintrée 5b selon l'invention entre deux lattes 1b et 2b est retournée par rapport à la latte 5 montrée à la figure 1, et ainsi convexe en direction de la latte inférieure 2b. Les extrémités 52b de la latte cintrée 5b sont montées à glissement sur la face inférieure de la latte supérieure 1b, et peuvent être suspendues à celles-ci par deux fentes ou orifices 53b de l'un des types décrits ci-dessus. Au repos, la latte cintrée 5b est soit au-dessus de la latte inférieure 2b, soit au contact de la latte inférieure 2b. Par exemple, comme montré à la figure 8, le sommet 51b de la latte 5b comporte une rainure ou lumière longitudinale 56 qui est traversée longitudinalement par la latte inférieure 2b. Une telle rainure ou lumière peut être également prévue dans la latte cintrée 5 montrée à la figure 1 pour y recevoir la partie centrale de la latte supérieure 1. Lorsqu'une charge CHb est appliquée sur la latte supérieure 1b, la latte supérieure défléchit sensiblement et la latte cintrée défléchit progressivement. Le sommet 51b de la latte cintrée 5b s'appuie en s'aplatissant sensiblement sur la latte inférieure de renfort 2b plus rigide, tandis que les extrémités 52b de la latte cintrée s'écartent l'une de l'autre et sont guidées le long de la latte supérieure 1b.According to a second embodiment shown in Figure 8, a curved batten 5b according to the invention between two slats 1b and 2b is turned over relative to the slat 5 shown in Figure 1, and thus convex towards the lower batten 2b. The ends 52b of the arched batten 5b are mounted at sliding on the underside of the slat upper 1b, and can be suspended from them by two slots or orifices 53b of one of the types described above. At rest, the curved slat 5b is either above the lower batten 2b, or at contact of the lower batten 2b. For example, like shown in Figure 8, the top 51b of the slat 5b has a longitudinal groove or lumen 56 which is crossed longitudinally by the slat lower 2b. Such a groove or light can be also provided in the arched batten 5 shown in the Figure 1 to receive the central part of the upper batten 1. When a CHb load is applied to the upper batten 1b, the batten upper deflects appreciably and the arched batten gradually deflects. The top 51b of the latte curved 5b is supported by flattening substantially on the stiffer lower reinforcement strip 2b, while that the ends 52b of the arched batten move apart from each other and are guided along the batten superior 1b.

Comme décrit précédemment pour une latte cintrée 1 convexe vers le haut, une latte cintrée 1b convexe vers le bas peut être superposée à plusieurs autres lattes cintrées, comme montré à la figure 4, et/ou associée à d'autres lattes cintrées montées à glissement sous la latte supérieure 1b, d'une manière analogue à la variante selon la figure 5, et/ou montées à glissement sous deux lattes supérieures et au-dessus d'une latte inférieure, d'une manière analogue à la variante selon la figure 6.As previously described for an arched batten 1 convex upwards, a curved slat 1b convex down can be superimposed on several others curved slats, as shown in figure 4, and / or associated with other arched slats mounted at sliding under the upper batten 1b, in a way analogous to the variant according to FIG. 5, and / or slidably mounted under two upper slats and above a bottom batten, in a way similar to the variant according to FIG. 6.

Les diverses réalisations et variantes de l'invention décrites ci-dessus peuvent être combinées entr'elles sans sortir de l'objet de la présente demande de brevet.The various realizations and variants of the invention described above can be combined between them without departing from the object of this patent application.

Claims (12)

Sommier comprenant au moins une latte supérieure (1, 1b) et une latte inférieure (2, 2b), caractérisé en ce qu'il comprend un ressort à lame cintré (5, 5b) ayant des extrémités (52) montées à glissement sur l'une (2, 1b) des lattes supérieure et inférieure et un sommet (51) situé sensiblement à proximité de l'autre (1, 2b) des lattes supérieure et inférieure.Bed base comprising at least one slat upper (1, 1b) and a lower batten (2, 2b), characterized in that it comprises a leaf spring bent (5, 5b) having ends (52) mounted at sliding on one (2, 1b) of the upper slats and lower and a vertex (51) located substantially at proximity of the other (1, 2b) of the upper slats and lower. Sommier conforme à la revendication 1, dans lequel les extrémités (52) du ressort à lame (5) s'appuient à glissement sur la latte inférieure (2) et le sommet (51) du ressort à lame est situé sensiblement au-dessous de ou au contact de la latte supérieure (1).Bed base according to claim 1, in which the ends (52) of the leaf spring (5) slide against the lower batten (2) and the top (51) of the leaf spring is located substantially below or in contact with the slat upper (1). Sommier conforme à la revendication 1, dans lequel les extrémités (52b) du ressort à lame (5b) s'appuient à glissement sur ou sont suspendues à la latte supérieure (1b) et le sommet (51b) du ressort à lame est situé sensiblement au-dessus de ou au contact de la latte inférieure (1b).Bed base according to claim 1, in which the ends (52b) of the leaf spring (5b) lean on or hang from the upper batten (1b) and the top (51b) of the spring blade is located substantially above or at contact of the lower batten (1b). Sommier conforme à l'une quelconque des revendications 1 à 3, dans lequel les extrémités (52, 52a, 52b) du ressort à lame ont des fentes (53, 53b) ou des orifices (53a) traversés par ladite une (2, 2a, 1b) des lattes supérieure et inférieure.Bed base in accordance with any of the claims 1 to 3, wherein the ends (52, 52a, 52b) of the leaf spring have slots (53, 53b) or orifices (53a) through which said one (2, 2a, 1b) upper and lower slats. Sommier conforme à l'une quelconque des revendications 1 à 4, dans lequel le ressort à lame (5, 5b) est amovible de ladite une (2, 1b) des lattes supérieure et inférieure sans que celle-ci soit retirée du cadre (3) du sommier.Bed base in accordance with any of the claims 1 to 4, wherein the leaf spring (5, 5b) is removable from said one (2, 1b) of the slats upper and lower without this being removed from the frame (3) of the box spring. Sommier conforme à l'une quelconque des revendications 1 à 5, dans lequel le ressort à lame (5, 5b) est une latte cintrée en bois.Bed base in accordance with any of the claims 1 to 5, wherein the leaf spring (5, 5b) is a curved wooden slat. Sommier conforme à l'une quelconque des revendications 1 à 6, dans lequel les extrémités (52, 52b) du ressort à lame (5, 5b) sont recouvertes de matière anti-friction, ou comprennent chacune un embout en matière anti-friction.Bed base in accordance with any of the claims 1 to 6, wherein the ends (52, 52b) of the leaf spring (5, 5b) are covered with anti-friction material, or each include a anti-friction tip. Sommier conforme à l'une quelconque des revendications 1 à 7, dans lequel une bande en cuivre ou alliage cuivré (54, 14, 24) est supportée par le ressort à lame (5), ou la latte supérieure (1) ou la latte inférieure (2).Bed base in accordance with any of the claims 1 to 7, wherein a copper strip or copper alloy (54, 14, 24) is supported by the leaf spring (5), or the upper batten (1) or the lower batten (2). Sommier conforme à l'une quelconque des revendications 1 à 8, comprenant au moins un autre ressort à lame (5S, 5I) supporté par le ressort à lame (5) précité.Bed base in accordance with any of the claims 1 to 8, comprising at least one other leaf spring (5S, 5I) supported by the spring blade (5) mentioned above. Sommier conforme à l'une quelconque des revendications 1 à 8, comprenant au moins un autre ressort à lame (5G, 5D) ayant des extrémités (52G, 52D) montées à glissement sur ladite une (2) des lattes supérieure et inférieure.Bed base in accordance with any of the claims 1 to 8, comprising at least one other leaf spring (5G, 5D) having ends (52G, 52D) slidably mounted on said one (2) of upper and lower slats. Sommier conforme à l'une quelconque des revendications 1 à 8, comprenant deux lattes supérieures (la) situées sensiblement au-dessus de la latte inférieure (2a), le sommet (51a) ou les extrémités (52b) du ressort à lame (5a, 5b) étant situé en partie au-dessous de chacune des lattes supérieures.Bed base in accordance with any of the Claims 1 to 8, comprising two slats upper (la) located substantially above the lower batten (2a), the top (51a) or the ends (52b) of the leaf spring (5a, 5b) being located partly below each of the slats higher. Sommier conforme à l'une quelconque des revendications 1 à 8, comprenant des ressorts à lame (5, 5b) montés respectivement entre des lattes supérieures (1, 1b) et des lattes inférieures (2, 2b), et ayant des raideurs différentes.Bed base in accordance with any of the Claims 1 to 8, comprising leaf springs (5, 5b) mounted respectively between slats upper (1, 1b) and lower slats (2, 2b), and having different stiffnesses.
EP97402271A 1996-10-02 1997-09-29 Slatted bed base with two layers of slats Withdrawn EP0834272A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9612099A FR2753894B1 (en) 1996-10-02 1996-10-02 DOUBLE LEVEL OF LATTES
FR9612099 1996-10-02

Publications (1)

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EP0834272A1 true EP0834272A1 (en) 1998-04-08

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EP97402271A Withdrawn EP0834272A1 (en) 1996-10-02 1997-09-29 Slatted bed base with two layers of slats

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FR (1) FR2753894B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1186261A2 (en) * 2000-09-11 2002-03-13 Esperides S.R.L. Slat holders for bed rests with high flexibility
ES2173012A1 (en) * 1999-07-09 2002-10-01 Flex Equipos De Descanso Sa System to limit deformation of bed frame slats
EP2060208A1 (en) * 2007-11-19 2009-05-20 Oniris Mounting piece for a suspension member
EP3066960A1 (en) * 2015-03-10 2016-09-14 Recticel Schlafkomfort GmbH Suspension spring for a mattress support and mattresses support having at least one such suspension spring
EP3260725A1 (en) * 2016-06-21 2017-12-27 Continental Automotive GmbH Leaf spring assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2414978A (en) * 1942-12-02 1947-01-28 Robert A Richardson Box springs and method for making same
DE2020456A1 (en) * 1969-04-28 1970-11-12 Team Form Ag Mattress pad
EP0118652A1 (en) * 1983-01-13 1984-09-19 Matra AG Slat-type bed bottom
DE8708160U1 (en) * 1987-06-10 1987-07-23 Rössle & Wanner GmbH, 7403 Ammerbuch Spring slat element for a slatted frame

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2414978A (en) * 1942-12-02 1947-01-28 Robert A Richardson Box springs and method for making same
DE2020456A1 (en) * 1969-04-28 1970-11-12 Team Form Ag Mattress pad
EP0118652A1 (en) * 1983-01-13 1984-09-19 Matra AG Slat-type bed bottom
DE8708160U1 (en) * 1987-06-10 1987-07-23 Rössle & Wanner GmbH, 7403 Ammerbuch Spring slat element for a slatted frame

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2173012A1 (en) * 1999-07-09 2002-10-01 Flex Equipos De Descanso Sa System to limit deformation of bed frame slats
EP1186261A2 (en) * 2000-09-11 2002-03-13 Esperides S.R.L. Slat holders for bed rests with high flexibility
EP1186261A3 (en) * 2000-09-11 2002-05-08 Esperides S.R.L. Slat holders for bed rests with high flexibility
EP2060208A1 (en) * 2007-11-19 2009-05-20 Oniris Mounting piece for a suspension member
FR2923692A1 (en) * 2007-11-19 2009-05-22 Oniris Soc Par Actions Simplif FASTENING TIP FOR A SUSPENSION ASSEMBLY
EP3066960A1 (en) * 2015-03-10 2016-09-14 Recticel Schlafkomfort GmbH Suspension spring for a mattress support and mattresses support having at least one such suspension spring
EP3260725A1 (en) * 2016-06-21 2017-12-27 Continental Automotive GmbH Leaf spring assembly

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Publication number Publication date
FR2753894A1 (en) 1998-04-03
FR2753894B1 (en) 1999-02-05

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