EP0900536A2 - Sommier à lattes - Google Patents
Sommier à lattes Download PDFInfo
- Publication number
- EP0900536A2 EP0900536A2 EP98440194A EP98440194A EP0900536A2 EP 0900536 A2 EP0900536 A2 EP 0900536A2 EP 98440194 A EP98440194 A EP 98440194A EP 98440194 A EP98440194 A EP 98440194A EP 0900536 A2 EP0900536 A2 EP 0900536A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- bed base
- base according
- leaf spring
- flange
- 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.)
- Withdrawn
Links
Images
Classifications
-
- 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
-
- 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
- A47C23/067—Slat supports adjustable, e.g. in height or elasticity
Definitions
- the present invention relates to a slatted base comprising a frame, at least a row of main slats arranged parallel to each other and mounted in the frame, this row forming a first damping means, at least one zone reinforced with at least one secondary slat arranged opposite and below a main batten, this secondary batten also being mounted in the frame, and at least one spring element associated with said secondary slat and with said main slat opposite forming a second damping means, said spring element comprising a leaf spring disposed between the secondary batten and the main batten in look and having a curved shape.
- Slatted bed bases in general have a first row of slats main intended to receive the mattress. These slats are mounted as part of the bed base by ball joints or any other connecting element intended to collect the movements of the ends of these slats.
- These box springs are usually reinforced in an area corresponding to the user's back area which represents the area where the weight is the highest. These reinforcements usually consist of slats side panels arranged below and opposite the corresponding main slats in said back region.
- These slats are also mounted as part of the box spring by ball joints or any other connecting element and are coupled to the main slats opposite by adjustable center distance sliders. These sliders allow you to adjust the bed base tension.
- box springs are equipped with a automatic tension adjustment according to the weight applied.
- One of the systems in the form of spring blades wavy over their entire length and arranged below the main slats in said dorsal area in place of the slats secondary.
- this system is not efficient enough since the wavy spring leaves are mounted without a secondary leaf. This has the effect of not not guarantee sufficient tension for correct maintenance during use.
- a other automatic adjustment system has a curved leaf spring arranged between a secondary batten and the main batten opposite. This leaf spring is mounted on one of the slats by sliding at its ends, its top being close to the other slat.
- This system is particularly effective because it allows constitute several levels or stages of damping which come into action one after the other and accumulate according to the weight to be supported. Nevertheless, the ends of this leaf spring are mounted directly by sliding on one of the main slats or secondary, creating a wood-on-wood friction when the leaf spring thus generating noise and premature wear of the corresponding slat and said ends.
- the object of the present invention is to overcome this drawback by proposing a slatted base with automatic tension adjustment system function of the applied weight, which is very flexible, progressive, noise-free and wear-free, while remaining a simple and economical system.
- a slatted base as defined in the preamble and characterized by that the ends of the leaf spring are mounted by rolling means on said secondary batten or said main batten opposite.
- the rolling means comprise at least one planar rolling bearing provided between said secondary batten or said main slat facing and each end of the blade comes out and at least one retaining flange surrounding at least each end of the leaf spring. said bearing and said corresponding slat.
- the rolling bearing advantageously comprises a cage and at least one roller mounted in free rotation in said cage and movable in translation in the direction of displacement of the end of the leaf spring.
- the bearing cage has two parallel internal grooves arranged to guide said roller in rotation and in translation.
- the bearing has at least two rollers parallel mounted in free rotation in said cage and movable in translation.
- the bearing cage can have a notch on its two opposite lateral sides, this notch having a width at least equal to that of the retaining flange.
- the retaining flange may include a lug arranged to engage in a hole correspondent provided in said slat.
- the rolling means comprise at least one guide flange and preferably two guide flanges, one of which lower flange arranged to be disposed between said slat and the retaining flange and an upper flange arranged to be disposed between said leaf spring and the flange of maintenance.
- Each guide flange advantageously comprises a base substantially rectangular and a stud projecting from said base, this stud being intended to be housed in a corresponding hole provided respectively in said slat and in said blade spring.
- each guide flange advantageously has two flanges conical provided on two parallel edges of said base and projecting from the side opposite the tenon, these edges defining between them a groove intended to receive the retaining flange.
- One of the conical edges is advantageously higher than the other and is arranged to bear against the retaining flange on the inside of the bed base.
- the retaining flange defines an interior housing whose height is at more equal to that formed by said slat. said planar rolling bearing, said end of the leaf spring with or without said guide flanges, so as to produce a tight fitting, without operating clearance.
- the rolling bearing and the rollers can be made of polyamide and the blade plywood spring.
- This leaf spring may also include, at its top, a shoe made in a noise-absorbing material.
- the main slats, the slat secondary and the leaf spring are produced in different thicknesses.
- Figure 1 illustrates a bed 1 equipped with a slatted base 2 formed of several parts articulated to each other to match the body of the user, this box spring being provided a row of parallel main slats 3 forming a flat surface intended for receive a mattress (not shown), these slats being mounted in a frame 4 peripheral.
- This box spring 2 has a reinforced zone 5, as will be seen in reference to Figure 2, in the dorsal area corresponding to the lower back of the user where the weight is greatest.
- the box spring 2 of the invention is not necessarily articulated.
- the base 2 includes said main slats 3 mounted outside said frame 4 by ball joints 6 and at least one secondary slat 7 mounted inside the frame 4 also by two ball joints 8 and arranged below and opposite one of the main slats 3.
- the reinforced zone 5 can extend beyond a secondary slat 7 and include for example a row of eight slats parallel and successive secondary to cover the entire dorsal area and even beyond if necessary.
- This reinforced zone 5 comprises at least one spring element associated with said secondary batten 7 and said main batten 3 opposite.
- the spring element consists of a spring leaf 9, preferably made of plywood, curved, disposed between said slats 3, 7, its slightly curved ends 9a being mounted on the secondary batten 7 by rolling means 10 which will be described later.
- the apex 9b of the leaf spring is directed towards the main batten 3.
- This apex 9b is also equipped with a pad 20 made of a noise-absorbing material for avoid any noise pollution when the main slat 3 comes into contact with the blade spring 9.
- This leaf spring 9 can also be mounted upside down, its ends 9a being mounted on the main batten 3 and its top 9b being directed towards the batten secondary 7.
- This leaf spring 9 is centered relative to the longitudinal axis of symmetry of the base 2 so as to balance the distribution of the forces transmitted by the main batten 3.
- FIG. 3 illustrates in more detail the means of bearing 10 for mounting the ends 9a of the leaf spring 9 on the batten secondary 7, or on the main batten 3 depending on the mounting variant chosen.
- These rolling means 10 comprise for each end 9a a plane bearing at bearing 11 disposed between said end 9a of the leaf spring and said slat 7 thus a retaining flange 12 surrounding said end 9a of the leaf spring, the bearing 11 and the corresponding slat 7.
- the retaining flange 12 reduces the degrees of freedom of said end 9a at a single translation substantially parallel to said plane bearing at bearing 11.
- the planar rolling bearing 11 comprises a substantially rectangular cage 13 receiving two rollers 14 mounted in free rotation and movable in translation in the direction of movement of the end 9a of said leaf spring represented by the arrows F.
- the thickness of the cage 13 is less than the diameter of the rollers 14 so that they can roll simultaneously on the secondary slat 7 and the end 9a of the blade spring.
- the bearing cage 13 has two parallel internal grooves 15 receiving the pins 14 'of the rollers 14 and arranged to guide them in rotation and in translation. The displacement in translation of the rollers 14 is limited by the length inside of this cage.
- This cage 13 also includes a recess 16 provided on its two opposite lateral sides and whose width L is at least equal to that of the retaining flange 12.
- the number of rollers 14 is not limited to two but can have at least one roller.
- the planar rolling bearing 11 and the rollers 14 are preferably made of polyamide to limit the coefficient of friction and noise.
- the retaining flange 12 has a shape of section ring substantially rectangular defining an interior housing 17 to receive the end 9a of the leaf spring, the planar rolling bearing 11 and the corresponding slat 7.
- the height H of the interior housing 17 is at most equal to that formed by the addition of the slat secondary 7, of the planar rolling bearing 11 and of the end 9a of the leaf spring, so as to carry out a tight assembly.
- the retaining flange 12 adheres to the blade spring 9 in their contact area.
- the circumference of the interior housing 17 of the flange holding 12 comprises a chamfer 18 to facilitate its mounting.
- This bridle of retaining 12 comprises a lug 19 arranged to engage in a corresponding hole (not shown) provided in said secondary slat 7 so as to be blocked in a fixed position. It is made in one piece in an elastic material and preferably rubber, allowing it to be deformed and stretched at the time of its mounting around the leaf spring. of the landing and the batten. It could also be made of any other material, in two symmetrical parts and assembled by interlocking for example.
- This retaining flange 12 also plays a role shock absorber. Indeed, the transverse displacement of the end 9a of the leaf spring according to arrow F automatically causes the elastic deformation of the flange retaining 12 in the same direction, this retaining flange being fixed to its part lower in the secondary batten 7 by its tenon 19.
- Each blade spring 9 is positioned on the secondary batten 7 which must receive it by by means of two planar rolling bearings 11 arranged under its ends 9a slightly curved.
- the retaining flange 12 is threaded around these parts 7, 11, 9a after being stretched and then is housed in the lateral recesses 16 of the bearing 11 and is positioned relative to the secondary slat 7 by means of its pin 19. Then, the secondary slats 7 are mounted in the box spring 2 in a traditional manner by example by means of the ball joints 8 illustrated in FIG. 3.
- planar bearings at bearing 11 thus favor this displacement since they are designed to avoid any floating wood on wood and therefore any wear and any generation of noise.
- the spring leaves 9 reach their damping limit, the secondary slats 7 come into action thus forming a third level of depreciation.
- FIGS. 6 and 7 illustrate an alternative embodiment of the rolling means 30.
- a planar rolling bearing 31 identical to the rolling bearing 11 and disposed between the secondary slat 7 and the end 9a of the leaf spring 9.
- a flange of support 32 surrounds the assembly formed by the secondary slat 7, the plane bearing bearing 31 and the leaf spring 9 and to which are added two guide flanges 33a, 33b arranged on either side of said assembly.
- the lower flange 33a is housed between the secondary slat 7 and the retaining flange 32 and the upper flange 33b is housed between the leaf spring 9 and the retaining flange 32.
- These flanges 33a, 33b are identical and are more particularly represented by FIG. 7.
- a base 34 substantially rectangular from which project a stud 35 placed substantially in the center of said base and two conical edges 36a, 36b provided on two edges parallel to said base and projecting from the side opposite to stud 35.
- the defined space between the two conical flanges 36a, 36b delimits a groove 37 intended to receive the retaining flange 32.
- the lug 35 of the lower flange 33a is intended to be housed in a corresponding hole provided in the secondary batten 7 and the lug 35 of the flange upper 33b is intended to be housed in a corresponding hole 38 provided in the blade spring 9.
- each flange 33a, 33b one of the conical flanges 36a is higher than the other 36b and is intended to rest on the retaining flange 32 on the inside of the box spring to provide greater contact surface when moving transverse of the end 9a of the leaf spring 9.
- These flanges 33a, 33b are produced preferably polyamide to limit the coefficient of friction and noise.
- each leaf spring 9 is positioned on the secondary slat 7 which must receive it via two flat bearings to bearing 31 arranged under its slightly curved ends 9a.
- the flanges 33a, 33b are set up and positioned respectively with respect to the slat secondary 7 and the leaf spring 9 so as to accommodate the pins 35 in the holes correspondents.
- the retaining flange 32 is threaded around these parts 33a, 7, 31, 9a and 33b after being stretched and then is housed in the grooves 37 of the flanges 33a, 33b as well as in the notches 16 of the rolling plane bearing 31 and is positioned by relative to the secondary batten 7 and spring leaf 9 by means of the pins 35.
- the secondary slats 7 are mounted in the box spring 2 in a traditional manner by example by means of the ball joints 8 illustrated in FIG. 3.
- the invention achieves the goals set. Moreover, the main slats, secondary slats and spring blades are produced in different thicknesses with different stiffnesses to further improve the damping performance obtained by this invention.
- rollers can be replaced with rows of balls or integrated directly in the ends 9a of the spring blades 9.
- the planar rolling bearing 11, 31, the guide flanges 33a, 33b and the retaining flange 12, 32 could also have different shapes and dimensions and be made of other materials.
Landscapes
- Rolling Contact Bearings (AREA)
- Springs (AREA)
- Bedding Items (AREA)
- Invalid Beds And Related Equipment (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
Description
- la figure 1 représente une vue en perspective d'un lit équipé d'un sommier à lattes articulé,
- la figure 2 est une section transversale du lit de la figure 1 dans la zone dorsale,
- la figure 3 est une vue de détail en perspective du sommier selon l'invention,
- les figures 4A et 4B sont respectivement une vue en perspective et une vue en coupe du palier à roulement illustré dans la figure 3,
- les figures 5A et 5B sont respectivement une vue en perspective et une vue en coupe de la bride de maintien illustrée dans la figure 3,
- la figure 6 est une vue de détail en plan d'une variante de réalisation de l'invention, et
- la figure 7 est une vue éclatée de la variante illustrée dans la figure 6.
Claims (18)
- Sommier à lattes (2) comportant un cadre (4), au moins une rangée de lattes principales (3) disposées parallèlement entre elles et montées dans ledit cadre et formant un premier moyen d'amortissement, au moins une zone renforcée (5) comportant au moins une latte secondaire (7) disposée en regard et en dessous d'une latte principale (3), cette latte secondaire (7) étant également montée dans ledit cadre, et au moins une lame ressort (9) disposée entre la latte secondaire (7) et la latte principale (3) en regard et présentant une forme courbe formant un second moyen d'amortissement, caractérisé en ce que les extrémités (9a) de cette lame ressort sont montées par des moyens de roulement (10, 30) sur ladite latte secondaire (7) ou ladite latte principale (3) en regard.
- Sommier selon la revendication 1, caractérisé en ce que les moyens de roulement (10, 30) comportent au moins un palier plan à roulement (11, 31) prévu entre ladite latte secondaire (7) ou ladite latte principale (3) en regard et chaque extrémité (9a) de la lame ressort et au moins une bride de maintien (12, 32) entourant au moins chaque extrémité de la lame ressort, ledit palier et ladite latte correspondante.
- Sommier selon la revendication 2, caractérisé en ce que le palier plan à roulement (11, 31) comporte une cage (13) et au moins un rouleau (14) monté en rotation libre dans ladite cage et mobile en translation dans le sens de déplacement (F) de l'extrémité de la lame ressort.
- Sommier selon la revendication 3, caractérisé en ce que la cage (13) du palier plan à roulement comporte deux rainures intérieures (15) parallèles agencées pour guider ledit rouleau (14) en rotation et en translation.
- Sommier selon la revendication 3, caractérisé en ce que le palier plan à roulement (11, 31) comporte au moins deux rouleaux (14) parallèles montés en rotation libre dans ladite cage et mobiles en translation.
- Sommier selon la revendication 3, caractérisé en ce que la cage (13) du palier plan à roulement comporte une encoche (16) sur ses deux côtés latéraux opposés, cette encoche ayant une largeur (L) au moins égale à celle de la bride de maintien (12, 32).
- Sommier selon la revendication 2, caractérisé en ce que la bride de maintien (12) comporte au moins un tenon (19) agencé pour s'engager dans un trou correspondant prévu dans ladite latte (7, 3).
- Sommier selon la revendication 2, caractérisé que ce que les moyens de roulement (30) comportent au moins un flasque de guidage (33a, 33b) agencé pour être disposé entre ladite latte (7, 3) et la bride de maintien (32) ou entre ladite lame ressort (9) et la bride de maintien (32).
- Sommier selon la revendication 8, caractérisé en ce que les moyens de roulement (30) comportent deux flasques de guidage, dont un flasque inférieur (33a) agencé pour être disposé entre ladite latte (7, 3) et la bride de maintien (32) et un flasque supérieur (33b) agencé pour être disposé entre ladite lame ressort (9) et la bride de maintien (32).
- Sommier selon la revendication 9, caractérisé en ce que chaque flasque de guidage (33a, 33b) comporte une base (34) sensiblement rectangulaire et un tenon (35) se projetant de ladite base (34), ce tenon étant destiné à se loger dans un trou correspondant prévu respectivement dans ladite latte (7, 3) et dans ladite lame ressort (9).
- Sommier selon la revendication 10, caractérisé en ce que chaque flasque de guidage (33a, 33b) comporte deux rebords coniques (36a, 36b) prévus sur deux bords parallèles de ladite base (34) du côté opposé au tenon (35), ces rebords définissant entre eux une rainure (37) destinée à recevoir la bride de maintien (32).
- Sommier selon la revendication 11, caractérisé en ce qu'un des rebords coniques (36a) est plus haut que l'autre (36b) et est agencé pour s'appuyer contre la bride de maintien (32) du côté intérieur du sommier.
- Sommier selon la revendication 8, caractérisé en ce que la bride de maintien (12, 32) définit un logement intérieur (17) dont la hauteur (H) est au plus égale à celle formée par ladite latte (7, 3), ledit palier plan à roulement (11, 31), ladite extrémité (9a) de la lame ressort avec ou sans les flasques de guidage (33a, 33b), de manière à réaliser un montage serré, sans jeu de fonctionnement.
- Sommier selon la revendication 2, caractérisé en ce que la bride de maintien (12, 32) est réalisée d'un seul tenant dans une matière élastique.
- Sommier selon la revendication 8, caractérisé en ce que le palier plan à roulement (11, 31), les rouleaux (14) et les flasques de guidage (33a, 33b) sont réalisés en polyamide.
- Sommier selon la revendication 1, caractérisé en ce que la lame ressort (9) est réalisée en bois multiplis.
- Sommier selon la revendication 2, caractérisé en ce que la lame ressort (9) comporte à son sommet (9b) un patin (20) réalisé dans une matière amortissant le bruit.
- Sommier selon la revendication 1, caractérisé en ce que les lattes principales (3), la latte secondaire (7) et la lame ressort (9) sont réalisées dans des épaisseurs différentes.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9711194A FR2768036B1 (fr) | 1997-09-05 | 1997-09-05 | Sommier a lattes |
FR9711194 | 1997-09-05 | ||
FR9716204A FR2772249B3 (fr) | 1997-09-05 | 1997-12-12 | Sommier a lattes |
FR9716204 | 1997-12-12 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0900536A2 true EP0900536A2 (fr) | 1999-03-10 |
EP0900536A3 EP0900536A3 (fr) | 1999-07-21 |
Family
ID=26233795
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98440194A Withdrawn EP0900536A3 (fr) | 1997-09-05 | 1998-09-04 | Sommier à lattes |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0900536A3 (fr) |
FR (2) | FR2768036B1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2862196B1 (fr) * | 2003-11-17 | 2007-05-25 | Abdellah Driss | Element de suspension et sommier de lit comprenant de tels elements |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR21027E (fr) * | 1916-10-06 | 1920-02-19 | Valmon Laforet | Chalits-sommiers |
CH506275A (de) * | 1969-04-28 | 1971-04-30 | Atelier Team Form | Matratzenunterlage |
DE4340893A1 (de) * | 1993-12-01 | 1995-07-27 | Martin Inhoffen | Lattenrost für Doppel- und Einzelbetten |
-
1997
- 1997-09-05 FR FR9711194A patent/FR2768036B1/fr not_active Expired - Fee Related
- 1997-12-12 FR FR9716204A patent/FR2772249B3/fr not_active Expired - Fee Related
-
1998
- 1998-09-04 EP EP98440194A patent/EP0900536A3/fr not_active Withdrawn
Non-Patent Citations (1)
Title |
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None |
Also Published As
Publication number | Publication date |
---|---|
FR2768036B1 (fr) | 1999-12-17 |
EP0900536A3 (fr) | 1999-07-21 |
FR2768036A1 (fr) | 1999-03-12 |
FR2772249A1 (fr) | 1999-06-18 |
FR2772249B3 (fr) | 2000-02-18 |
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