EP1364600A1 - Stiffness adjustment system for bed base ball joint - Google Patents

Stiffness adjustment system for bed base ball joint Download PDF

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Publication number
EP1364600A1
EP1364600A1 EP20030291216 EP03291216A EP1364600A1 EP 1364600 A1 EP1364600 A1 EP 1364600A1 EP 20030291216 EP20030291216 EP 20030291216 EP 03291216 A EP03291216 A EP 03291216A EP 1364600 A1 EP1364600 A1 EP 1364600A1
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EP
European Patent Office
Prior art keywords
cam
ball joint
arms
base
head
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Granted
Application number
EP20030291216
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German (de)
French (fr)
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EP1364600B1 (en
Inventor
Marc Delahousse
Olivier Gregoire
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Delahousse et Fils SA
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Delahousse et Fils SA
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Publication of EP1364600A1 publication Critical patent/EP1364600A1/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
    • A47C23/067—Slat supports adjustable, e.g. in height or elasticity

Definitions

  • the present invention relates to ball joints used as suspensions for box springs, and in particular a system for adjusting the firmness of these ball joints.
  • the ball joints are commonly used for slatted bases or multi-element type bed bases as described for example in the document EP-0 653 174.
  • the present invention provides an original arrangement of the ball joint and means which make it possible to modify at will its deformation capacity as well as its firmness, and this patella has the main advantage of having in itself this possibility of modifying its characteristics intrinsically.
  • the ball joint according to the invention is suitable for slatted type bed bases or multi-element type; it consists of: - a base which is designed to be fixed to the structure of said base, - a head which is arranged to accommodate and fix one or more slats or a tray, depending on the type of box spring, - a connection elastic between said base and said head, arranged to allow movement from the latter to the base according to at least one component perpendicular to this base, and this ball joint comprises, on the one hand, at the level of said connection elastic, a first part consisting of rigid arms arranged in a Vee, articulated on a plate which is integral either with said base or with said head, and a second spring portion, which extends between the free ends of said arms and said head or said base as the case may be, and on the other hand, means for adjusting and controlling the amplitude of the movement of said rigid arms, so as to modify at will the displacement capacity of said head relative to said base and, consecutively, the firmness of said ball
  • these means for adjusting and controlling the firmness of the ball joints are integrated and give it a kind of universal character.
  • this ball joint according to the invention can be installed anywhere on the bed base and be adjusted in situ as required.
  • the constituent elements of the patella namely the base, the head and the elastic connection between the two, are in the form monobloc made of thermoplastic material of the elastomer type.
  • the means for adjusting and control of the movement of the rigid arms and in particular of the opening of the angle of the Vee formed by these consist of at least one cam-shaped part, whose position is adjustable as required, in particular between said arms and a bearing surface forming a stop, arranged either at the level of the head or at the level of the base as appropriate.
  • the cam is in the form of a U whose branches are arranged with a wedge or ramp profile, which cam is guided like a drawer and it is centered on the connecting member which is interposed between the bearing surface making a stop and the plate provided with the articulations of the rigid arms.
  • the internal sides of the U-shaped cam have a sort of notch cooperating with the connecting member disposed between the surface making stop and the articulation plate of the arms, to establish at least two possibilities for adjusting the position of said cam.
  • the cam is in the form of an iron horse, clipped to the connecting member interposed between the bearing surface making a stop and the articulation plate of the arms, which connecting member is in the form of a cylindrical pivot and the branches of said cam are arranged in a wedge or ramp, with symmetry with respect to its axis of rotation.
  • the cam is in the form of a ring, interposed between the bearing surface making a stop and the hinge plate of the arm, which ring is centered and maneuvered by means of an axis which is guided in a orifice formed in said bearing surface, which axis is part of a member of the genus button to drive said cam in rotation, which cam is arranged with corner or ramp-like profiles, arranged symmetrically with respect to its axis of rotation.
  • the bearing surface forming a stop and the plate of articulation of the rigid arms are linked in one piece, by means of at least one offset connection wall thus forming a housing for the ring-shaped cam.
  • the rigid arms comprise, near their articulation on the plate, of the studs intended to bear on the profiles appropriate cams.
  • the profiles of the cams, wedge or ramp are arranged in the form of elastic strips, the side of which is on the chin, is in the plane of the bearing surface of the latter to put them in permanent contact with said lamellae, which lamellae form also as a return spring to keep the arms in the rest position.
  • the ball joint includes a base 1, or in other words a sole, arranged to be fixed to the structure of a box spring 2, and a head 3 arranged to accommodate one or more slats 4 or else a tray depending on the type of box spring, that is to say a slatted bed base or a multi-element bed base.
  • the base 1 and the head 3 are connected by an elastic connection 5.
  • This connection elastic 5 allows head 3 to move relative to base 1 according to at least a component perpendicular to the latter.
  • the firmness adjustment system 6 is located under the head 3, between the elastic connection 5 and this head 3. In the case of FIG. 2, the system firmness adjustment 6 is disposed between the base 1 and the elastic connection 5.
  • the elastic connection 5 consists of spring elements 10 shown diagrammatically on Figures 1 and 2, in the form of flexible blades. These elements 10 are, in Figure 1, two in number, interposed between the base 1 and arm 11. They come in the form of a portion of an ellipse for example.
  • the arms 11 constitute levers for deformation of the spring elements 10. They are interposed between these spring elements 10 and the head 3, forming a kind of open Vee.
  • the arms 11 are articulated on a plate 12 which is integral with the head 3.
  • the articulations 13 of the arms 11 on the plate 12 are relatively close to each other.
  • the free end 14 of these arms 11 is integral with the corresponding spring element 10.
  • the plate 12 used for articulation arms 11, is integral with the base 1.
  • the spring elements 10 are interposed between the free ends 14 of the arms 11 and the head 3.
  • the movement of the head 3 is accompanied by a movement of the arms 11, and in particular a pivoting of these arms 11 around their axes of articulation 13 respective and, at the same time, a deformation of the spring elements 10 is observed.
  • the arms 11 form a kind of Vé and the angle ⁇ between these arms varies according to their movement.
  • the amplitude of the movement of the arms 11 relative to the head 3, FIG. 1, or relative to the base 1, FIG. 2, is adjusted and controlled by means of the firmness adjustment system 6.
  • This firmness adjustment system 6 comprises means consisting of at least less a cam-shaped part 16 interposed between the arms 11 and a surface support 17 acting as a stop, located under the head 3 according to the embodiment of FIG. 1, and on the base 1 according to the embodiment of FIG. 2.
  • this ball joint can be installed everywhere on a bed base and, by a simple displacement of the cams 16, the adjustment of firmness can be carried out at will either directly during the confection of the box spring, either by the user himself.
  • FIG. 3 represents in a more concrete way an embodiment of the shown in Figure 1.
  • This ball joint shown in Figure 3 is a ball joint for slatted base, of the type trilattes.
  • This ball joint comprises a base 1 provided with orifices 21 to allow its fixing to the bed base, by means of complementary studs for example (not shown).
  • This base can also be fitted, as shown in the presents figure, with a housing 22 to allow the embedding of the third batten 23 which is simply sketched.
  • the upper part of the ball joint consists of the head 3 which comprises, laterally, housings or end pieces 24 to accommodate the ends of the slats superior 4.
  • the elastic link 5 consisting of arm 11 and spring elements 10.
  • the arms 11 are articulated on the plate 12; the joints 13 consist of a simple thinning of material.
  • the ball joint shown in Figure 3, is in one piece, made of thermoplastic material of the elastomer type for its constituent elements to namely the base 1, the head 3 and the elastic connection 5.
  • the element attached to this ball joint consists of the firmness adjustment 6 which comprises a cam-shaped part marked 16 with a in general and which is detailed in the following figures.
  • this cam is inserted between the head 3 and the elastic connection 5, that is to say between the bearing surface 17 arranged under said head 3 and the plate 12 which carries the articulations of the arms 11.
  • the arms 11, as shown in FIG. 3, are designed to transmit the movements of the head 3 to the spring elements 10. It is noted that the arms 11 and the spring elements 10 are in one piece.
  • the part serving as an arm 11 has a section important which gives it a certain rigidity while the part acting spring element 10 has a smaller and constant section; a section similar to the latter is also found at the joints 13 in particular.
  • the spring element 10 is in fact arranged between the arms 11 and complementary arms 25 which extend to the base 1 to which they are connected by a hinge 26 in the form of thinning.
  • the cam 16 is interposed between the upper surface of the plate 12 and the lower surface 17 of the head 3; this surface 17 acts as bearing surface or stop for said cam 16.
  • the cam 16 is installed on a connecting member which is interposed between the plate 12 and the cross member 31 of the head 3.
  • This connecting member is for example in the form of an axis or cylindrical pivot 30.
  • the arms 11 are in contact with the cam by means of protrusions or chucks 32 shaped near the joints 13.
  • the capacity of the arms 11 to pivot around their articulation 13 is controlled by cam 16. It is in fact the variation of the angle ⁇ , and its amplitude, which are regulated by the interaction of the cam 16 with studs 32.
  • FIG. 5 illustrates another concrete embodiment of a ball joint which corresponds here to the diagram in figure 2.
  • This ball joint comprises a base 1 arranged to be fixed to the bed base 2.
  • the firmness adjustment system 6 is here located between this base 1 and the elastic connection 5.
  • This elastic connection 5 differs appreciably from that of the diagram shown in FIG. 2, at the level of the spring element proper which consists of deformable ellipses 35.
  • the slats 4 are arranged in separate end pieces 24, which end pieces are each associated with the spring element 35 in the shape of an ellipse.
  • These spring elements in the form of ellipses are connected together by a cross member 37 situated slightly above the major axis of these ellipses. We find the arms 11 articulated on the plate 12 by means of joints 13 formed as above of a thinning of material.
  • These arms 11 in the form of rigid beams, extend respectively towards each of the ellipses 35, and are associated with the latter at their lower part.
  • the ends 14 of these arms 11 are located substantially in line with the end pieces 24 of slats, on the minor axis of each ellipse 35.
  • the operation of the firmness adjustment system 6 corresponds exactly to that shown in FIGS. 3 and 4.
  • the cam 16 is interposed between - the surface support 17 making a stop at the base 1, and - the plate 12 provided with articulations 13 of the arms 11.
  • the cam 16 is centered on the pivot 30 in the form of an axis, which serves as a connection between the plate 12 and the base 1.
  • Figure 6 shows the area of the ball joint where the adjustment system is located. firmness without the means which allow this adjustment to be made, that is to say without the cam 16.
  • This figure 6 corresponds to figure 4, without the cam 16.
  • This cam 16 is shown isolated in FIGS. 7 and 8, corresponding to one of the embodiments which will be detailed later.
  • Figure 7 shows the cam on the side of its surface which is in contact with the chin 32;
  • Figure 8 shows the same cam on the side of its surface which is in contact with the bearing surface 17 arranged under the head 3 or, as the case may be, on the sole 1 as for example in the cases shown in FIGS. 2 and 5.
  • Figure 9 is a section on 9-9 of Figure 6, top view, showing the arm 11, the chin pieces 32 on each of these arms 11, the plate 12 to which are linked the two arms 11 by means of the joints 13 which appear in dotted lines. Still in this figure 9, appears, in section, the connecting member 30 between the plate 12 and the head 3 of the ball joint. This cylindrical connecting member constitutes the pivot 30 of the cam 16 as shown in FIGS. 7 and 8.
  • This cam 16 is in the form of a horseshoe with a cavity cylindrical central unit 40 open, the inlet of which has a substantially smaller dimension to the diameter of said cylindrical central cavity 40 to allow it to be clipped onto the pivot 30.
  • FIG. 10 shows the cam 16 in a particular extreme position in which it is totally inactive.
  • Figure 14 shows the cam 16 in an extreme position where it is fully active, i.e. it has the effect of preventing movement of arm 11 relative to the head of the ball joint or to the base as appropriate.
  • the cam 16 is shown in FIG. 12 in a intermediate position which gives a certain freedom to the arms 11 and a certain angular travel.
  • cam 16 has a finger 42 which allows the operator to manipulate it and position it according to the desired firmness, in one previously detailed positions or in another position intermediate as appropriate.
  • the cam 16 has a central part 43 forming a hub in shape of open tube portion, which follows the pivot 30.
  • the active part of the cam that is to say profiles 44 arranged symmetrically with respect to the axis of rotation 46 of this cam. These profiles 44 correspond to a corner or a ramp which extends from a leading edge 47 thin to a fictitious edge 48 where the thickness reaches the thickness general of cam 16.
  • the amplitude of the movement of the cam, around its axis 46, is of the order of 80 to 90 ° for example.
  • axis L corresponding to the inactive position of the cam in which the studs 32 are located as shown in Figure 10, in the free areas of the cam 16 that is to say outside the profiles 44; still in FIG. 8, we also observe the axis B which corresponds to the blocking of the arms 11 as shown in FIG. 14 where we observe the chin pieces 32 positioned in areas of the cam 16 where its thickness is maximum, that is to say say that its thickness corresponds to the space between the studs 32 and the bearing surface 17 forming a stop arranged either on the head 3 or on the sole 1 as the case may be.
  • These axes L and B are located on either side of the finger 42 which allows the maneuvers of the cam 16.
  • the cam 16 is in the intermediate position, that is to say that there is a possibility of angular movement of the arms 11.
  • Figure 16 shows the horseshoe type cam 16 like the one shown Figures 7 to 15, with however a variant in the profile of the ramp.
  • the ramp can be in the form of an elastic strip 50 which is partially detached from the hub 43.
  • This strip 50 is in contact with the corresponding 32 mint as soon as the cam is placed in the active position to adjust the amplitude of the movement of the arms 11; this strip 50 also provides an effect spring aimed at bringing the arms 11 back to the rest position.
  • this cam corresponds strictly to that which has been detailed previously in connection with FIGS. 6 to 15.
  • the visible surface of FIG. 16 of this cam corresponds to the surface which is in contact with the bearing surface 17 forming a stop either at the level of the head 3 or at the level of the sole 1.
  • the strip 50 can be constantly in contact with its mint 32. It can also have a limited stroke by means of a stop 51 by example. This stop 51 extends radially from the hub 43.
  • Figure 17 shows, in perspective, the ball joint corresponding to Figure 3 and schematically in FIG. 1, equipped with a cam 16 as detailed in FIG. 16.
  • This cam 16 is integrated between the plate (not visible) supporting the arms 11 and the head 3 of the ball joint and in particular under the cross member 31 which extends between the two end pieces 24 where the ends of the slats 4 are housed.
  • Cam 16 is shown in a position which corresponds to the position intermediate, that is to say that the arms 11 can pivot around their joints 13 with a limited amplitude which is of the order of half the amplitude that one can observe when the cam 16 is in the inactive position for example.
  • Figure 18 corresponds to a section of the ball joint shown in Figures 17 and 3 along a vertical median plane passing through the axis of the cam 16.
  • This cam 16 is interposed between the plate 12 which comprises the articulations of the arms 11 and the surface support 17 forming a stop arranged under the head 3.
  • the housing 22 for installing a third batten which housing is located at the level of the sole 1 of the ball joint, between the holes 21 which allow the passage of the fixing studs.
  • Figure 19 shows a variant of the cam.
  • This 16 'cam is presented in the shape of a U. It moves like a drawer relative to the ball joint, parallel to the alignment of the upper slats for example if they are slats.
  • the internal sides of the central part 43 'of the U comprise, facing inside, a notch 52 which cooperates with the pivot 30 of the ball joint which serves as a guide, to fix several positions of this cam and several types of amplitude for the arm movement 11.
  • the external profiles 44 'forming a ramp or corner, are detached from the part central unit of the U to provide, as explained previously in FIG. 16, a certain elasticity at the cam. These profiles 44 'are also in the form of lamellae and are biased by the studs 32 arranged on the arms 11.
  • FIG 20 shows another variant of the cam.
  • This 16 "cam is has the form of a ring with a central part forming a hub 55 which is provided with a non-circular orifice 56 of the square or rectangular kind.
  • This port 56 cooperates with a drive square 57 as shown in Figure 21.
  • This square drive 57 is part of a button or knob 58 capable of being operated by the operator to move the 16 "cam and adjust the amplitude of the arm travel 11.
  • This 16 "cam has a ramp-shaped or wedge-shaped profile, as previously described in FIGS. 19 and 16, of elastic strips 60. When the cam is in the active position relative to the studs 32, these strips 60 can be in permanent contact with the chin rests.
  • strip-shaped ramps can have a variable thickness of as shown in FIG. 19, either by means of studs 61 which extend projecting from the strip as shown in FIG. 20.
  • Figures 22 and 23 show a ball joint of the type described in Figure 17 especially ; this ball joint is provided with a 16 "cam as shown in FIG. 20, operated by means of the button 58 as shown in FIG. 21.
  • the 16 "cam as shown in FIG. 23, is housed between the plate 12 provided articulations of the arms 11 and the bearing surface 17 forming a stop at the level of the head 3 of the patella.
  • the axis of the cam 16 " is constituted by the operating square 57 fitted on button 58, which button is guided and centered in a bore of the head top cross member 3.
  • This upper cross member 31 is connected to the plate 12 by means of a wall 63 which is offset from the outside of the ball joint, between the housings 24 provided for accommodate the ends of the slats.

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  • Pivots And Pivotal Connections (AREA)

Abstract

The swivel joint comprises a base (1), a head (3) receiving the end of a lath (4) and a resilient connection (5) interposed between them. The resilient connection comprises rigid articulated arms (11) which act on springs (10) according to the displacement of the head. The amplitude of the arm is adjusted and controlled by a cam system (16).

Description

La présente invention concerne les rotules utilisées en tant que suspensions pour les sommiers, et en particulier un système de réglage de fermeté de ces rotules.The present invention relates to ball joints used as suspensions for box springs, and in particular a system for adjusting the firmness of these ball joints.

Les rotules sont couramment utilisées pour des sommiers à lattes ou des sommiers du type multi-éléments comme décrits par exemple dans le document EP-0 653 174.The ball joints are commonly used for slatted bases or multi-element type bed bases as described for example in the document EP-0 653 174.

Dans le domaine des sommiers à lattes classiques, ou des sommiers du type multi-éléments, il est intéressant de pouvoir adapter la fermeté de l'élément de suspension, c'est-à-dire de la rotule, selon son emplacement sur le sommier.In the field of conventional slatted bed bases, or box springs of the type multi-element, it is interesting to be able to adapt the firmness of the element of suspension, that is to say of the ball joint, depending on its location on the bed base.

Dans le document FR-2 793 125 par exemple, des aménagements particuliers sont prévus pour faire varier l'élasticité de la rotule. Cette rotule se présente sous la forme d'une structure monobloc munie de lames déformables faisant ressort. Les aménagements particuliers réalisés au niveau de ces lames ressorts permettent, avec l'aide de pièces rapportées et interchangeables, de modifier la capacité de déformation de ces lames ressorts et/ou de modifier leur élasticité par l'adjonction d'éléments ressorts complémentaires.In document FR-2 793 125 for example, specific arrangements are provided to vary the elasticity of the patella. This ball joint is presented under the form of a monobloc structure provided with deformable blades making spring. The special arrangements made at the level of these leaf springs allow, with using interchangeable inserts, to modify the deformation capacity of these leaf springs and / or modify their elasticity by adding elements complementary springs.

La présente invention propose un aménagement original de la rotule et des moyens qui permettent de modifier à volonté sa capacité de déformation ainsi que sa fermeté, et cette rotule présente comme principal avantage, de posséder en elle-même cette possibilité de modification de ses caractéristiques de façon intrinsèque.The present invention provides an original arrangement of the ball joint and means which make it possible to modify at will its deformation capacity as well as its firmness, and this patella has the main advantage of having in itself this possibility of modifying its characteristics intrinsically.

La rotule selon l'invention convient pour des sommiers du type à lattes ou du type multi-éléments ; elle est constituée : - d'une embase qui est aménagée pour être fixée sur la structure dudit sommier, - d'une tête qui est aménagée pour accueillir et fixer une ou plusieurs lattes ou un plateau, selon le type de sommier, - d'une liaison élastique entre ladite embase et ladite tête, aménagée pour permettre un déplacement de cette dernière vers l'embase selon au moins une composante perpendiculaire à cette embase, et cette rotule comporte, d'une part, au niveau de ladite liaison élastique, une première partie constituée de bras rigides disposés en Vé, articulés sur une platine qui est solidaire soit de ladite embase, soit de ladite tête, et une seconde partie formant ressort, qui s'étend entre les extrémités libres desdits bras et ladite tête ou ladite embase selon le cas, et d'autre part, des moyens pour régler et contrôler l'amplitude du mouvement desdits bras rigides, de façon à modifier à volonté la capacité de déplacement de ladite tête par rapport à ladite embase et, consécutivement, la fermeté de ladite rotule.The ball joint according to the invention is suitable for slatted type bed bases or multi-element type; it consists of: - a base which is designed to be fixed to the structure of said base, - a head which is arranged to accommodate and fix one or more slats or a tray, depending on the type of box spring, - a connection elastic between said base and said head, arranged to allow movement from the latter to the base according to at least one component perpendicular to this base, and this ball joint comprises, on the one hand, at the level of said connection elastic, a first part consisting of rigid arms arranged in a Vee, articulated on a plate which is integral either with said base or with said head, and a second spring portion, which extends between the free ends of said arms and said head or said base as the case may be, and on the other hand, means for adjusting and controlling the amplitude of the movement of said rigid arms, so as to modify at will the displacement capacity of said head relative to said base and, consecutively, the firmness of said ball.

Selon l'invention, ces moyens de réglage et de contrôle de la fermeté de la rotule sont intégrés et lui confèrent en quelque sorte un caractère universel. En effet, cette rotule selon l'invention peut être installée en tout endroit du sommier et être réglée in situ selon les nécessités.According to the invention, these means for adjusting and controlling the firmness of the ball joints are integrated and give it a kind of universal character. Indeed, this ball joint according to the invention can be installed anywhere on the bed base and be adjusted in situ as required.

Toujours selon l'invention, les éléments constitutifs de la rotule à savoir l'embase, la tête et la liaison élastique entre les deux, se présentent sous une forme monobloc réalisée en matériau thermoplastique du type élastomère.Still according to the invention, the constituent elements of the patella, namely the base, the head and the elastic connection between the two, are in the form monobloc made of thermoplastic material of the elastomer type.

Selon une disposition préférentielle de l'invention, les moyens de réglage et de contrôle du mouvement des bras rigides et en particulier de l'ouverture de l'angle du Vé formé par ces derniers, sont constitués d'au moins une pièce en forme de came, dont la position est réglable selon les besoins, en particulier entre lesdits bras et une surface d'appui faisant butée, aménagée soit au niveau de la tête, soit au niveau de l'embase selon le cas.According to a preferred arrangement of the invention, the means for adjusting and control of the movement of the rigid arms and in particular of the opening of the angle of the Vee formed by these, consist of at least one cam-shaped part, whose position is adjustable as required, in particular between said arms and a bearing surface forming a stop, arranged either at the level of the head or at the level of the base as appropriate.

Selon un premier mode de réalisation, la came se présente sous la forme d'un U dont les branches sont aménagées avec un profil façon coin ou rampe, laquelle came est guidée comme un tiroir et elle est centrée sur l'organe de liaison qui est interposé entre la surface d'appui faisant butée et la platine munie des articulations des bras rigides.According to a first embodiment, the cam is in the form of a U whose branches are arranged with a wedge or ramp profile, which cam is guided like a drawer and it is centered on the connecting member which is interposed between the bearing surface making a stop and the plate provided with the articulations of the rigid arms.

Toujours selon l'invention, les flancs internes de la came en forme de U comportent une sorte de crantage coopérant avec l'organe de liaison disposé entre la surface faisant butée et la platine d'articulation des bras, pour établir au moins deux possibilités de réglage de la position de ladite came.Still according to the invention, the internal sides of the U-shaped cam have a sort of notch cooperating with the connecting member disposed between the surface making stop and the articulation plate of the arms, to establish at least two possibilities for adjusting the position of said cam.

Selon une variante de réalisation, la came se présente sous la forme d'un fer à cheval, clipsé sur l'organe de liaison interposé entre la surface d'appui faisant butée et la platine d'articulation des bras, lequel organe de liaison se présente sous la forme d'un pivot cylindrique et les branches de ladite came sont aménagées façon coin ou rampe, avec une symétrie par rapport à son axe de rotation.According to an alternative embodiment, the cam is in the form of an iron horse, clipped to the connecting member interposed between the bearing surface making a stop and the articulation plate of the arms, which connecting member is in the form of a cylindrical pivot and the branches of said cam are arranged in a wedge or ramp, with symmetry with respect to its axis of rotation.

Selon une autre variante de réalisation, la came se présente sous la forme d'un anneau, interposé entre la surface d'appui faisant butée et la platine d'articulation des bras, lequel anneau est centré et manoeuvré au moyen d'un axe qui est guidé dans un orifice formé dans ladite surface d'appui, lequel axe fait partie d'un organe du genre bouton pour entraíner ladite came en rotation, laquelle came est aménagée avec des profils façon coin ou rampe, disposés symétriquement par rapport à son axe de rotation.According to another alternative embodiment, the cam is in the form of a ring, interposed between the bearing surface making a stop and the hinge plate of the arm, which ring is centered and maneuvered by means of an axis which is guided in a orifice formed in said bearing surface, which axis is part of a member of the genus button to drive said cam in rotation, which cam is arranged with corner or ramp-like profiles, arranged symmetrically with respect to its axis of rotation.

Toujours selon l'invention, la surface d'appui faisant butée et la platine d'articulation des bras rigides, sont liées de façon monobloc, au moyen d'au moins une paroi de liaison décalée formant ainsi un logement pour la came en forme d'anneau. Still according to the invention, the bearing surface forming a stop and the plate of articulation of the rigid arms, are linked in one piece, by means of at least one offset connection wall thus forming a housing for the ring-shaped cam.

Toujours selon l'invention, les bras rigides comportent, à proximité de leur articulation sur la platine, des mentonnets destinés à prendre appui sur les profils appropriés des cames.Still according to the invention, the rigid arms comprise, near their articulation on the plate, of the studs intended to bear on the profiles appropriate cams.

Selon une autre disposition de l'invention, les profils des cames, façon coin ou rampe, sont aménagés sous la forme de lamelles élastiques dont la face située côté mentonnet, se situe dans le plan de la surface d'appui de ces derniers pour les mettre en contact de façon permanente avec lesdites lamelles, lesquelles lamelles font également office de ressort de rappel pour maintenir les bras en position repos.According to another arrangement of the invention, the profiles of the cams, wedge or ramp, are arranged in the form of elastic strips, the side of which is on the chin, is in the plane of the bearing surface of the latter to put them in permanent contact with said lamellae, which lamellae form also as a return spring to keep the arms in the rest position.

L'invention sera encore détaillée à l'aide de la description suivante et des dessins annexés, donnés à titre indicatif, et dans lesquels :

  • la figure 1 représente, sous la forme d'un schéma fonctionnel, une rotule selon l'invention correspondant à un premier mode de réalisation ;
  • la figure 2 représente une rotule, toujours sous la forme de schéma fonctionnel, correspondant à un second mode de réalisation ;
  • la figure 3 représente concrètement, une rotule pour sommier à lattes, correspondant à la rotule schématisée figure 1, cette rotule est représentée sous la forme d'une coupe selon 3-3 de la figure 18 ;
  • la figure 4 représente, d'une façon plus détaillée et en coupe, l'aménagement de la rotule au niveau de la came de réglage de fermeté ;
  • la figure 5 représente concrètement une rotule qui correspond au mode de réalisation schématisé figure 2 ;
  • les figures 6 à 15 illustrent le fonctionnement du système de réglage de fermeté selon l'invention, avec une came qui se présente en forme de fer à cheval ;
  • la figure 16 représente, en perspective, la came du système de réglage de fermeté, en forme de fer à cheval ;
  • la figure 17 représente, en perspective, la rotule de la figure 3, en perspective, faisant apparaítre la came du système de réglage de fermeté ;
  • la figure 18 représente une coupe de la rotule de la figure 17 et de la figure 3, selon 18-18 de la figure 3 ;
  • la figure 19 représente une variante de réalisation de la came du système de réglage de fermeté, en forme de U ;
  • la figure 20 représente une autre variante de la came, en forme d'anneau ;
  • la figure 21 représente, en perspective, le bouton de manoeuvre de la came représentée figure 20 ;
  • la figure 22 représente une rotule comportant un système de réglage de fermeté constitué d'une came en forme d'anneau comme représenté figure 20, et d'un bouton de manoeuvre comme représenté figure 21 ;
  • la figure 23 est une vue en coupe selon un plan médian vertical, de la rotule représentée figure 22.
The invention will be further detailed with the aid of the following description and the appended drawings, given for information only, and in which:
  • FIG. 1 represents, in the form of a functional diagram, a ball joint according to the invention corresponding to a first embodiment;
  • FIG. 2 represents a ball joint, always in the form of a functional diagram, corresponding to a second embodiment;
  • FIG. 3 represents concretely, a ball joint for slatted base, corresponding to the ball joint shown diagrammatically in FIG. 1, this ball joint is represented in the form of a section along 3-3 of FIG. 18;
  • Figure 4 shows, in more detail and in section, the arrangement of the ball at the level of the firmness adjustment cam;
  • FIG. 5 concretely represents a ball joint which corresponds to the embodiment shown diagrammatically in FIG. 2;
  • Figures 6 to 15 illustrate the operation of the firmness adjustment system according to the invention, with a cam which is in the form of a horseshoe;
  • FIG. 16 represents, in perspective, the cam of the firmness adjustment system, in the shape of a horseshoe;
  • Figure 17 shows, in perspective, the ball joint of Figure 3, in perspective, showing the cam of the firmness adjustment system;
  • Figure 18 shows a section through the ball joint of Figure 17 and Figure 3, along 18-18 of Figure 3;
  • FIG. 19 shows an alternative embodiment of the cam of the firmness adjustment system, in the shape of a U;
  • FIG. 20 shows another variant of the cam, in the form of a ring;
  • Figure 21 shows, in perspective, the operating button of the cam shown in Figure 20;
  • Figure 22 shows a ball joint comprising a firmness adjustment system consisting of a ring-shaped cam as shown in Figure 20, and an operating button as shown in Figure 21;
  • FIG. 23 is a sectional view along a vertical median plane, of the ball joint shown in FIG. 22.

Telle que représentée figures 1 et 2, la rotule comprend une embase 1, ou autrement dit une semelle, aménagée pour être fixée sur la structure d'un sommier 2, et une tête 3 aménagée pour accueillir une ou plusieurs lattes 4 ou encore un plateau selon le type de sommier, c'est-à-dire un sommier à lattes ou un sommier multi-éléments.As shown in Figures 1 and 2, the ball joint includes a base 1, or in other words a sole, arranged to be fixed to the structure of a box spring 2, and a head 3 arranged to accommodate one or more slats 4 or else a tray depending on the type of box spring, that is to say a slatted bed base or a multi-element bed base.

L'embase 1 et la tête 3 sont reliées par une liaison élastique 5. Cette liaison élastique 5 permet à la tête 3 de se déplacer par rapport à l'embase 1 selon au moins une composante perpendiculaire à cette dernière.The base 1 and the head 3 are connected by an elastic connection 5. This connection elastic 5 allows head 3 to move relative to base 1 according to at least a component perpendicular to the latter.

Dans le cas de la figure 1, le système de réglage de fermeté 6 est situé sous la tête 3, entre la liaison élastique 5 et cette tête 3. Dans le cas de la figure 2, le système de réglage de fermeté 6 est disposé entre l'embase 1 et la liaison élastique 5.In the case of FIG. 1, the firmness adjustment system 6 is located under the head 3, between the elastic connection 5 and this head 3. In the case of FIG. 2, the system firmness adjustment 6 is disposed between the base 1 and the elastic connection 5.

La liaison élastique 5 est constituée d'éléments ressorts 10 schématisés, sur les figures 1 et 2, sous la forme de lames flexibles. Ces éléments 10 sont, figure 1, au nombre de deux, interposés entre l'embase 1 et des bras 11. Ils se présentent sous la forme d'une portion d'ellipse par exemple.The elastic connection 5 consists of spring elements 10 shown diagrammatically on Figures 1 and 2, in the form of flexible blades. These elements 10 are, in Figure 1, two in number, interposed between the base 1 and arm 11. They come in the form of a portion of an ellipse for example.

Les bras 11 constituent des leviers de déformation des éléments ressorts 10. Ils sont interposés entre ces éléments ressorts 10 et la tête 3, formant une sorte de Vé ouvert.
Les bras 11 sont articulés sur une platine 12 qui est solidaire de la tête 3. Les articulations 13 des bras 11 sur la platine 12 sont relativement proches l'une de l'autre. L'extrémité libre 14 de ces bras 11 est solidaire de l'élément ressort 10 correspondant.The arms 11 constitute levers for deformation of the spring elements 10. They are interposed between these spring elements 10 and the head 3, forming a kind of open Vee.
The arms 11 are articulated on a plate 12 which is integral with the head 3. The articulations 13 of the arms 11 on the plate 12 are relatively close to each other. The free end 14 of these arms 11 is integral with the corresponding spring element 10.

Selon le mode de réalisation de la figure 2, la platine 12 servant à l'articulation des bras 11, est solidaire de l'embase 1. Les éléments ressorts 10 sont interposés entre les extrémités libres 14 des bras 11 et la tête 3.According to the embodiment of Figure 2, the plate 12 used for articulation arms 11, is integral with the base 1. The spring elements 10 are interposed between the free ends 14 of the arms 11 and the head 3.

Dans les deux formes de réalisation décrites ci-dessus, en relation avec les figures 1 et 2, le mouvement de la tête 3 s'accompagne d'un mouvement des bras 11, et en particulier d'un pivotement de ces bras 11 autour de leurs axes d'articulation 13 respectifs et, en même temps, on observe une déformation des éléments ressorts 10.In the two embodiments described above, in relation to the FIGS. 1 and 2, the movement of the head 3 is accompanied by a movement of the arms 11, and in particular a pivoting of these arms 11 around their axes of articulation 13 respective and, at the same time, a deformation of the spring elements 10 is observed.

Les bras 11 forment une sorte de Vé et l'angle α entre ces bras, varie selon leur mouvement.
L'amplitude du mouvement des bras 11 par rapport à la tête 3, figure 1, ou par rapport à l'embase 1, figure 2, est réglée et contrôlée au moyen du système de réglage de fermeté 6.The arms 11 form a kind of Vé and the angle α between these arms varies according to their movement.
The amplitude of the movement of the arms 11 relative to the head 3, FIG. 1, or relative to the base 1, FIG. 2, is adjusted and controlled by means of the firmness adjustment system 6.

Ce système de réglage de fermeté 6 comprend des moyens constitués d'au moins une pièce en forme de came 16 interposée entre les bras 11 et une surface d'appui 17 faisant office de butée, située sous la tête 3 selon le mode de réalisation de la figure 1, et sur l'embase 1 selon le mode de réalisation de la figure 2.This firmness adjustment system 6 comprises means consisting of at least less a cam-shaped part 16 interposed between the arms 11 and a surface support 17 acting as a stop, located under the head 3 according to the embodiment of FIG. 1, and on the base 1 according to the embodiment of FIG. 2.

On conçoit que le déplacement des cames 16 sous la tête 3 ou sur l'embase 1, permet de modifier la capacité de mouvement des bras 11 et en particulier l'amplitude de leur mouvement angulaire autour de leurs articulations respectives 13. Ce contrôle du mouvement des bras 11 influe sur la capacité de déformation des éléments élastiques 10 et permet de contrôler la fermeté de la rotule.It is understood that the movement of the cams 16 under the head 3 or on the base 1, makes it possible to modify the movement capacity of the arms 11 and in particular the amplitude their angular movement around their respective joints 13. This control of the movement of the arms 11 influences the deformation capacity of the elastic elements 10 and makes it possible to control the firmness of the patella.

Ainsi, cette rotule, selon le mode de réalisation des figures 1 et 2, peut être installée partout sur un sommier et, par un simple déplacement des cames 16, le réglage de fermeté peut être réalisé à volonté soit directement lors de la confection du sommier, soit par l'utilisateur lui-même.Thus, this ball joint, according to the embodiment of Figures 1 and 2, can be installed everywhere on a bed base and, by a simple displacement of the cams 16, the adjustment of firmness can be carried out at will either directly during the confection of the box spring, either by the user himself.

La figure 3 représente d'une façon plus concrète un mode de réalisation de la rotule schématisée figure 1.FIG. 3 represents in a more concrete way an embodiment of the shown in Figure 1.

Cette rotule représentée figure 3 est une rotule pour sommier à lattes, du type trilattes.This ball joint shown in Figure 3 is a ball joint for slatted base, of the type trilattes.

Cette rotule comprend une embase 1 munie d'orifices 21 pour permettre sa fixation sur le sommier, au moyen de tenons complémentaires par exemple (non représentés). Cette embase peut également être aménagée, comme représenté sur la présente figure, avec un logement 22 pour permettre l'encastrement de la troisième latte 23 qui est simplement esquissée.This ball joint comprises a base 1 provided with orifices 21 to allow its fixing to the bed base, by means of complementary studs for example (not shown). This base can also be fitted, as shown in the presents figure, with a housing 22 to allow the embedding of the third batten 23 which is simply sketched.

La partie supérieure de la rotule est constituée de la tête 3 qui comprend, latéralement, des logements ou embouts 24 pour accueillir les extrémités des lattes supérieures 4.The upper part of the ball joint consists of the head 3 which comprises, laterally, housings or end pieces 24 to accommodate the ends of the slats superior 4.

Entre la tête 3 et l'embase 1 on retrouve la liaison élastique 5 constituée des bras 11 et des éléments ressorts 10. Les bras 11 sont articulés sur la platine 12 ; les articulations 13 sont constituées d'un simple amincissement de matière.Between the head 3 and the base 1 there is the elastic link 5 consisting of arm 11 and spring elements 10. The arms 11 are articulated on the plate 12; the joints 13 consist of a simple thinning of material.

La rotule, représentée figure 3, se présente sous une forme monobloc, réalisée en matériau thermoplastique du type élastomère pour ses éléments constitutifs à savoir l'embase 1, la tête 3 et la liaison élastique 5. The ball joint, shown in Figure 3, is in one piece, made of thermoplastic material of the elastomer type for its constituent elements to namely the base 1, the head 3 and the elastic connection 5.

L'élément rapporté au niveau de cette rotule est constitué du système de réglage de fermeté 6 qui comprend une pièce en forme de came repérée 16 d'une manière générale et qui est détaillée sur les figures suivantes.The element attached to this ball joint consists of the firmness adjustment 6 which comprises a cam-shaped part marked 16 with a in general and which is detailed in the following figures.

Dans le mode de réalisation de la figure 3, cette came s'insère entre la tête 3 et la liaison élastique 5 c'est-à-dire entre la surface d'appui 17 aménagée sous ladite tête 3 et la platine 12 qui porte les articulations des bras 11.In the embodiment of FIG. 3, this cam is inserted between the head 3 and the elastic connection 5, that is to say between the bearing surface 17 arranged under said head 3 and the plate 12 which carries the articulations of the arms 11.

Les bras 11, comme représentés figure 3, sont conçus pour transmettre les mouvements de la tête 3 aux éléments ressorts 10. On remarque que les bras 11 et les éléments ressorts 10 sont monoblocs. La partie faisant office de bras 11 a une section importante qui lui confère une certaine rigidité alors que la partie faisant office d'élément ressort 10 a une section plus faible et constante ; une section similaire à cette dernière se retrouve d'ailleurs au niveau des articulations 13 notamment.The arms 11, as shown in FIG. 3, are designed to transmit the movements of the head 3 to the spring elements 10. It is noted that the arms 11 and the spring elements 10 are in one piece. The part serving as an arm 11 has a section important which gives it a certain rigidity while the part acting spring element 10 has a smaller and constant section; a section similar to the latter is also found at the joints 13 in particular.

Toujours dans le cas de la figure 3, l'élément ressort 10 est en fait aménagé entre les bras 11 et des bras complémentaires 25 qui s'étendent jusqu'à l'embase 1 à laquelle ils sont reliés par une articulation 26 en forme d'amincissement.Still in the case of FIG. 3, the spring element 10 is in fact arranged between the arms 11 and complementary arms 25 which extend to the base 1 to which they are connected by a hinge 26 in the form of thinning.

Comme détaillé figure 4, la came 16 est interposée entre la surface supérieure de la platine 12 et la surface inférieure 17 de la tête 3 ; cette surface 17 fait office de surface d'appui ou butée pour ladite came 16.As detailed in FIG. 4, the cam 16 is interposed between the upper surface of the plate 12 and the lower surface 17 of the head 3; this surface 17 acts as bearing surface or stop for said cam 16.

Comme détaillé plus loin, et selon les modes de réalisation, la came 16 est installée sur un organe de liaison qui est interposé entre la platine 12 et la traverse 31 de la tête 3. Cet organe de liaison se présente par exemple sous la forme d'un axe ou pivot cylindrique 30.As detailed below, and according to the embodiments, the cam 16 is installed on a connecting member which is interposed between the plate 12 and the cross member 31 of the head 3. This connecting member is for example in the form of an axis or cylindrical pivot 30.

Les bras 11 sont en contact avec la came au moyen de protubérances ou mentonnets 32 façonnés à proximité des articulations 13.The arms 11 are in contact with the cam by means of protrusions or chucks 32 shaped near the joints 13.

La capacité des bras 11 à pivoter autour de leur articulation 13, est contrôlée par la came 16. C'est en fait la variation de l'angle α, et son amplitude, qui sont réglées par l'interaction de la came 16 avec des mentonnets 32.The capacity of the arms 11 to pivot around their articulation 13 is controlled by cam 16. It is in fact the variation of the angle α, and its amplitude, which are regulated by the interaction of the cam 16 with studs 32.

La figure 5 illustre un autre mode de réalisation concret d'une rotule qui correspond ici au schéma de la figure 2.FIG. 5 illustrates another concrete embodiment of a ball joint which corresponds here to the diagram in figure 2.

Cette rotule comporte une embase 1 aménagée pour être fixée sur le sommier 2. Le système de réglage de fermeté 6 est ici situé entre cette embase 1 et la liaison élastique 5.
Cette liaison élastique 5 se distingue sensiblement de celle du schéma représenté figure 2, au niveau de l'élément ressort proprement dit qui est constitué d'ellipses déformables 35. Les lattes 4 sont disposées dans des embouts 24 séparés, lesquels embouts sont chacun associés à l'élément ressort 35 en forme d'ellipse. Ces éléments ressorts en forme d'ellipses sont reliés entre eux par une traverse 37 située légèrement au-dessus du grand axe de ces ellipses.
On retrouve les bras 11 articulés sur la platine 12 au moyen d'articulations 13 constituées comme précédemment d'un amincissement de matière. Ces bras 11 en forme de poutres rigides, s'étendent respectivement vers chacune des ellipses 35, et sont associés à ces dernières à leur partie inférieure. Les extrémités 14 de ces bras 11 se situent sensiblement à l'aplomb des embouts 24 de lattes, sur le petit axe de chaque ellipse 35.This ball joint comprises a base 1 arranged to be fixed to the bed base 2. The firmness adjustment system 6 is here located between this base 1 and the elastic connection 5.
This elastic connection 5 differs appreciably from that of the diagram shown in FIG. 2, at the level of the spring element proper which consists of deformable ellipses 35. The slats 4 are arranged in separate end pieces 24, which end pieces are each associated with the spring element 35 in the shape of an ellipse. These spring elements in the form of ellipses are connected together by a cross member 37 situated slightly above the major axis of these ellipses.
We find the arms 11 articulated on the plate 12 by means of joints 13 formed as above of a thinning of material. These arms 11 in the form of rigid beams, extend respectively towards each of the ellipses 35, and are associated with the latter at their lower part. The ends 14 of these arms 11 are located substantially in line with the end pieces 24 of slats, on the minor axis of each ellipse 35.

Le fonctionnement du système de réglage de fermeté 6 correspond exactement à celui qui est représenté figures 3 et 4. La came 16 est interposée entre - la surface d'appui 17 faisant butée au niveau de l'embase 1, et - la platine 12 munie des articulations 13 des bras 11. Les mentonnets 32 aménagés sur les bras 11, à proximité des articulations 13 de ces derniers, prennent appui sur la came 16.The operation of the firmness adjustment system 6 corresponds exactly to that shown in FIGS. 3 and 4. The cam 16 is interposed between - the surface support 17 making a stop at the base 1, and - the plate 12 provided with articulations 13 of the arms 11. The chin rests 32 arranged on the arms 11, near articulations 13 of the latter, bear on the cam 16.

Comme précédemment, la came 16 est centrée sur le pivot 30 en forme d'axe, qui sert de liaison entre la platine 12 et l'embase 1.As before, the cam 16 is centered on the pivot 30 in the form of an axis, which serves as a connection between the plate 12 and the base 1.

La figure 6 montre la zone de la rotule où se situe le système de réglage de fermeté sans les moyens qui permettent d'effectuer ce réglage, c'est-à-dire sans la came 16. Cette figure 6 correspond à la figure 4, sans la came 16. Cette came 16 est représentée isolée sur les figures 7 et 8, correspondant à l'un des modes de réalisation qui sera détaillé plus loin.Figure 6 shows the area of the ball joint where the adjustment system is located. firmness without the means which allow this adjustment to be made, that is to say without the cam 16. This figure 6 corresponds to figure 4, without the cam 16. This cam 16 is shown isolated in FIGS. 7 and 8, corresponding to one of the embodiments which will be detailed later.

La figure 7 montre la came du côté de sa surface qui est en contact avec les mentonnets 32 ; la figure 8 montre la même came du côté de sa surface qui est en contact avec la surface d'appui 17 aménagée sous la tête 3 ou, selon le cas, sur la semelle 1 comme par exemple dans les cas représentés figures 2 et 5.Figure 7 shows the cam on the side of its surface which is in contact with the chin 32; Figure 8 shows the same cam on the side of its surface which is in contact with the bearing surface 17 arranged under the head 3 or, as the case may be, on the sole 1 as for example in the cases shown in FIGS. 2 and 5.

La figure 9 est une coupe selon 9-9 de la figure 6, vue de dessus, montrant les bras 11, les mentonnets 32 sur chacun de ces bras 11, la platine 12 à laquelle sont liés les deux bras 11 au moyen des articulations 13 qui apparaissent en traits pointillés. Toujours sur cette figure 9, apparaít, en coupe, l'organe de liaison 30 entre la platine 12 et la tête 3 de la rotule. Cet organe de liaison de forme cylindrique, constitue le pivot 30 de la came 16 telle que représentée figures 7 et 8.Figure 9 is a section on 9-9 of Figure 6, top view, showing the arm 11, the chin pieces 32 on each of these arms 11, the plate 12 to which are linked the two arms 11 by means of the joints 13 which appear in dotted lines. Still in this figure 9, appears, in section, the connecting member 30 between the plate 12 and the head 3 of the ball joint. This cylindrical connecting member constitutes the pivot 30 of the cam 16 as shown in FIGS. 7 and 8.

Cette came 16 se présente sous la forme d'un fer à cheval avec une cavité centrale cylindrique 40 ouverte, dont l'entrée a une dimension sensiblement inférieure au diamètre de ladite cavité centrale cylindrique 40 pour permettre son clipsage sur le pivot 30. This cam 16 is in the form of a horseshoe with a cavity cylindrical central unit 40 open, the inlet of which has a substantially smaller dimension to the diameter of said cylindrical central cavity 40 to allow it to be clipped onto the pivot 30.

Cette came 16 est positionnée figures 10 à 15 sur le pivot 30. La figure 10 montre la came 16 dans une position particulière extrême dans laquelle elle est totalement inactive. La figure 14 montre la came 16 dans une position extrême où elle est active totalement, c'est-à-dire qu'elle a pour effet d'empêcher tout mouvement des bras 11 par rapport à la tête de la rotule ou à l'embase selon le cas.This cam 16 is positioned in FIGS. 10 to 15 on the pivot 30. FIG. 10 shows the cam 16 in a particular extreme position in which it is totally inactive. Figure 14 shows the cam 16 in an extreme position where it is fully active, i.e. it has the effect of preventing movement of arm 11 relative to the head of the ball joint or to the base as appropriate.

Entre ces deux cas extrêmes, la came 16 est représentée figure 12 dans une position intermédiaire qui confère une certaine liberté aux bras 11 et un certain débattement angulaire.Between these two extreme cases, the cam 16 is shown in FIG. 12 in a intermediate position which gives a certain freedom to the arms 11 and a certain angular travel.

On observe encore que la came 16 comporte un doigt 42 qui permet à l'opérateur de la manipuler et de la positionner selon la fermeté souhaitée, dans l'une des positions détaillées précédemment ou encore dans une autre position intermédiaire selon le cas.We also observe that the cam 16 has a finger 42 which allows the operator to manipulate it and position it according to the desired firmness, in one previously detailed positions or in another position intermediate as appropriate.

D'autre part, la came 16 comporte une partie centrale 43 formant un moyeu en forme de portion de tube ouvert, qui épouse le pivot 30. Autour de cette partie centrale, on trouve la partie active de la came, c'est-à-dire des profils 44 disposés symétriquement par rapport à l'axe de rotation 46 de cette came. Ces profils 44 correspondent à un coin ou une rampe qui s'étend d'un bord d'attaque 47 de faible épaisseur jusqu'à une arête fictive 48 où l'épaisseur atteint l'épaisseur générale de la came 16.On the other hand, the cam 16 has a central part 43 forming a hub in shape of open tube portion, which follows the pivot 30. Around this central part, there is the active part of the cam, that is to say profiles 44 arranged symmetrically with respect to the axis of rotation 46 of this cam. These profiles 44 correspond to a corner or a ramp which extends from a leading edge 47 thin to a fictitious edge 48 where the thickness reaches the thickness general of cam 16.

L'amplitude du mouvement de la came, autour de son axe 46, est de l'ordre de 80 à 90° par exemple. Comme représenté figure 8, on observe l'axe L correspondant à la position inactive de la came dans laquelle les mentonnets 32 sont situés comme représenté figure 10, dans les zones libres de la came 16 c'est-à-dire en dehors des profils 44 ; toujours figure 8, on observe également l'axe B qui correspond au blocage des bras 11 comme représenté figure 14 où l'on observe les mentonnets 32 positionnés dans des zones de la came 16 où son épaisseur est maximale, c'est-à-dire que son épaisseur correspond à l'espace entre les mentonnets 32 et la surface d'appui 17 formant butée aménagée soit sur la tête 3, soit sur la semelle 1 selon le cas. Ces axes L et B, se situent de part et d'autre du doigt 42 qui permet les manoeuvres de la came 16.The amplitude of the movement of the cam, around its axis 46, is of the order of 80 to 90 ° for example. As shown in Figure 8, we observe the axis L corresponding to the inactive position of the cam in which the studs 32 are located as shown in Figure 10, in the free areas of the cam 16 that is to say outside the profiles 44; still in FIG. 8, we also observe the axis B which corresponds to the blocking of the arms 11 as shown in FIG. 14 where we observe the chin pieces 32 positioned in areas of the cam 16 where its thickness is maximum, that is to say say that its thickness corresponds to the space between the studs 32 and the bearing surface 17 forming a stop arranged either on the head 3 or on the sole 1 as the case may be. These axes L and B are located on either side of the finger 42 which allows the maneuvers of the cam 16.

Tel que représenté sur les figures 12 et 13, la came 16 est en position intermédiaire c'est-à-dire qu'il existe une possibilité de débattement angulaire des bras 11. Un espace E existe entre les mentonnets 32 et chaque rampe des profils 44 de la came. As shown in FIGS. 12 and 13, the cam 16 is in the intermediate position, that is to say that there is a possibility of angular movement of the arms 11. A space E exists between the studs 32 and each ramp of the profiles 44 of the cam.

La figure 16 montre la came 16 du type fer à cheval comme celle représentée figures 7 à 15, avec cependant une variante au niveau du profil de la rampe.Figure 16 shows the horseshoe type cam 16 like the one shown Figures 7 to 15, with however a variant in the profile of the ramp.

En effet, la rampe peut se présenter sous la forme d'une lamelle élastique 50 qui est partiellement détachée du moyeu 43. Cette lamelle 50 est en contact avec le mentonnet 32 correspondant dès que la came est placée en position active pour régler l'amplitude du mouvement des bras 11 ; cette lamelle 50 procure également un effet ressort visant à ramener les bras 11 en position repos.Indeed, the ramp can be in the form of an elastic strip 50 which is partially detached from the hub 43. This strip 50 is in contact with the corresponding 32 mint as soon as the cam is placed in the active position to adjust the amplitude of the movement of the arms 11; this strip 50 also provides an effect spring aimed at bringing the arms 11 back to the rest position.

Le fonctionnement de cette came correspond strictement à celui qui a été détaillé auparavant en liaison avec les figures 6 à 15. La surface visible figure 16 de cette came correspond à la surface qui est en contact avec la surface d'appui 17 formant butée soit au niveau de la tête 3, soit au niveau de la semelle 1.The operation of this cam corresponds strictly to that which has been detailed previously in connection with FIGS. 6 to 15. The visible surface of FIG. 16 of this cam corresponds to the surface which is in contact with the bearing surface 17 forming a stop either at the level of the head 3 or at the level of the sole 1.

A noter aussi que la lamelle 50 peut être constamment en contact avec son mentonnet 32. Elle peut aussi avoir une course limitée au moyen d'une butée 51 par exemple. Cette butée 51 s'étend radialement à partir du moyeu 43.Note also that the strip 50 can be constantly in contact with its mint 32. It can also have a limited stroke by means of a stop 51 by example. This stop 51 extends radially from the hub 43.

La figure 17 montre, en perspective, la rotule correspondant à la figure 3 et schématiquement à la figure 1, équipée d'une came 16 telle que détaillée figure 16.Figure 17 shows, in perspective, the ball joint corresponding to Figure 3 and schematically in FIG. 1, equipped with a cam 16 as detailed in FIG. 16.

Cette came 16 est intégrée entre la platine (non visible) support des bras 11 et la tête 3 de la rotule et en particulier sous la traverse 31 qui s'étend entre les deux embouts 24 où se logent les extrémités des lattes 4.This cam 16 is integrated between the plate (not visible) supporting the arms 11 and the head 3 of the ball joint and in particular under the cross member 31 which extends between the two end pieces 24 where the ends of the slats 4 are housed.

La came 16 est représentée dans une position qui correspond à la position intermédiaire, c'est-à-dire que les bras 11 peuvent pivoter autour de leurs articulations 13 avec une amplitude limitée qui est de l'ordre de la moitié de l'amplitude que l'on peut observer lorsque la came 16 est en position inactive par exemple.Cam 16 is shown in a position which corresponds to the position intermediate, that is to say that the arms 11 can pivot around their joints 13 with a limited amplitude which is of the order of half the amplitude that one can observe when the cam 16 is in the inactive position for example.

La figure 18 correspond à une coupe de la rotule représentée figures 17 et 3 selon un plan vertical médian passant par l'axe de la came 16. Cette came 16 est interposée entre le plateau 12 qui comporte les articulations des bras 11 et la surface d'appui 17 formant butée aménagée sous la tête 3.Figure 18 corresponds to a section of the ball joint shown in Figures 17 and 3 along a vertical median plane passing through the axis of the cam 16. This cam 16 is interposed between the plate 12 which comprises the articulations of the arms 11 and the surface support 17 forming a stop arranged under the head 3.

On remarque figure 17 et figure 18, le logement 22 permettant d'installer une troisième latte, lequel logement se situe au niveau de la semelle 1 de la rotule, entre les orifices 21 qui permettent le passage des tenons de fixation.Note Figure 17 and Figure 18, the housing 22 for installing a third batten, which housing is located at the level of the sole 1 of the ball joint, between the holes 21 which allow the passage of the fixing studs.

La figure 19 représente une variante de la came. Cette came 16' se présente sous la forme d'un U. Elle se déplace comme un tiroir par rapport à la rotule, parallèlement à l'alignement des lattes supérieures par exemple s'il s'agit de lattes.Figure 19 shows a variant of the cam. This 16 'cam is presented in the shape of a U. It moves like a drawer relative to the ball joint, parallel to the alignment of the upper slats for example if they are slats.

Les flancs internes de la partie centrale 43' du U comportent, tourné vers l'intérieur, un crantage 52 qui coopère avec le pivot 30 de la rotule qui sert de guide, pour fixer plusieurs positions de cette came et plusieurs types d'amplitude pour le mouvement des bras 11.The internal sides of the central part 43 'of the U comprise, facing inside, a notch 52 which cooperates with the pivot 30 of the ball joint which serves as a guide, to fix several positions of this cam and several types of amplitude for the arm movement 11.

Les profils externes 44' formant rampe ou coin, sont détachés de la partie centrale du U pour procurer, comme expliqué précédemment figure 16, une certaine élasticité au niveau de la came. Ces profils 44' se présentent également sous la forme de lamelles et sont sollicités par les mentonnets 32 aménagés sur les bras 11.The external profiles 44 'forming a ramp or corner, are detached from the part central unit of the U to provide, as explained previously in FIG. 16, a certain elasticity at the cam. These profiles 44 'are also in the form of lamellae and are biased by the studs 32 arranged on the arms 11.

La figure 20 représente une autre variante de la came. Cette came 16" se présente sous la forme d'un anneau avec une partie centrale formant un moyeu 55 qui est muni d'un orifice 56 non circulaire du genre carré ou rectangulaire. Cet orifice 56 coopère avec un carré d'entraínement 57 comme représenté figure 21. Ce carré d'entraínement 57 fait partie d'un bouton ou mollette 58 susceptible d'être manoeuvrée par l'opérateur pour déplacer la came 16" et régler en conséquence l'amplitude du débattement des bras 11.Figure 20 shows another variant of the cam. This 16 "cam is has the form of a ring with a central part forming a hub 55 which is provided with a non-circular orifice 56 of the square or rectangular kind. This port 56 cooperates with a drive square 57 as shown in Figure 21. This square drive 57 is part of a button or knob 58 capable of being operated by the operator to move the 16 "cam and adjust the amplitude of the arm travel 11.

Cette came 16" comporte un profil en forme de rampe ou de coin constitué, comme décrit précédemment figures 19 et 16, de lamelles élastiques 60. Lorsque la came est en position active par rapport aux mentonnets 32, ces lamelles 60 peuvent être en contact permanent avec les mentonnets.This 16 "cam has a ramp-shaped or wedge-shaped profile, as previously described in FIGS. 19 and 16, of elastic strips 60. When the cam is in the active position relative to the studs 32, these strips 60 can be in permanent contact with the chin rests.

Ces rampes en forme de lamelles peuvent avoir une épaisseur variable soit de façon constante comme représenté figure 19, soit au moyen de plots 61 qui s'étendent en saillie sur la lamelle comme représenté figure 20.These strip-shaped ramps can have a variable thickness of as shown in FIG. 19, either by means of studs 61 which extend projecting from the strip as shown in FIG. 20.

Les figures 22 et 23 représentent une rotule du type de celle décrite figure 17 notamment ; cette rotule est munie d'une came 16" telle que représentée figure 20, manoeuvrée au moyen du bouton 58 comme représenté figure 21.Figures 22 and 23 show a ball joint of the type described in Figure 17 especially ; this ball joint is provided with a 16 "cam as shown in FIG. 20, operated by means of the button 58 as shown in FIG. 21.

La came 16", comme représenté figure 23, est logée entre la platine 12 munie des articulations des bras 11 et la surface d'appui 17 formant butée au niveau de la tête 3 de la rotule. L'axe de la came 16" est constitué par le carré de manoeuvre 57 aménagé sur le bouton 58, lequel bouton est guidé et centré dans un alésage de la traverse supérieure de la tête 3.The 16 "cam, as shown in FIG. 23, is housed between the plate 12 provided articulations of the arms 11 and the bearing surface 17 forming a stop at the level of the head 3 of the patella. The axis of the cam 16 "is constituted by the operating square 57 fitted on button 58, which button is guided and centered in a bore of the head top cross member 3.

Cette traverse supérieure 31 est reliée à la platine 12 au moyen d'une paroi 63 qui est décalée du côté de l'extérieur de la rotule, entre les logements 24 prévus pour accueillir les extrémités des lattes.This upper cross member 31 is connected to the plate 12 by means of a wall 63 which is offset from the outside of the ball joint, between the housings 24 provided for accommodate the ends of the slats.

Claims (10)

Rotule pour sommier du type à lattes ou du type multi-éléments, constituée - d'une embase (1) qui est aménagée pour être fixée sur la structure dudit sommier, - d'une tête (3) qui est aménagée pour accueillir et fixer une ou plusieurs lattes ou un plateau, selon le type de sommier, - d'une liaison élastique (5) entre ladite embase (1) et ladite tête (3), aménagée pour permettre un déplacement de cette dernière vers l'embase selon au moins une composante perpendiculaire à cette embase (1), caractérisée en ce qu'elle comporte, d'une part, au niveau de ladite liaison élastique (5), une première partie constituée de bras rigides (11) disposés en Vé, articulés sur une platine (12) qui est solidaire soit de ladite embase (1) soit de ladite tête (3), et une seconde partie formant ressort (10), qui s'étend entre les extrémités libres (14) desdits bras (11) et ladite tête (3) ou ladite embase (1) selon le cas, et, d'autre part, des moyens pour régler et contrôler l'amplitude du mouvement desdits bras (11) de façon à modifier à volonté la capacité de déplacement de ladite tête (3) par rapport à ladite embase (1) et, consécutivement, la fermeté de ladite rotule.Ball joint for slatted type or multi-element type base, consisting of - a base (1) which is arranged to be fixed to the structure of said base, - a head (3) which is arranged to receive and fix one or more slats or a plate, depending on the type of bed base, - an elastic connection (5) between said base (1) and said head (3), arranged to allow movement of the latter towards the base according to at least one component perpendicular to this base (1), characterized in that it comprises, on the one hand, at the level of said elastic connection (5), a first part consisting of rigid arms (11) arranged in a Vee, articulated on a plate (12) which is integral either with said base (1) or with said head (3), and a second spring part (10), which extends between the free ends (14) of said arms (11) and said head (3) or said base (1) as the case may be, and, on the other hand, means for adjusting and controlling er the amplitude of movement of said arms (11) so as to modify at will the displacement capacity of said head (3) relative to said base (1) and, consequently, the firmness of said ball joint. Rotule selon la revendication 1, caractérisée en ce que ses éléments constitutifs à savoir l'embase (1), la tête (3) et la liaison élastique (5) interposée entre les deux, se présentent sous une forme monobloc réalisée en matériau thermoplastique du type élastomère.Ball joint according to claim 1, characterized in that its constituent elements, namely the base (1), the head (3) and the elastic connection (5) interposed between the two, are in a single piece made of thermoplastic material of elastomer type. Rotule selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que les moyens de réglage et de contrôle du mouvement des bras rigides (11) sont constitués d'au moins une pièce en forme de came (16, 16', 16"), dont la position est réglable selon les besoins, en particulier entre lesdits bras (11) et une surface (17) faisant office de butée, aménagée soit au niveau de la tête (3), soit au niveau de l'embase (1) selon le cas.Ball joint according to either of Claims 1 and 2, characterized in that the means for adjusting and controlling the movement of the rigid arms (11) consist of at least one cam-shaped part (16, 16 ', 16 "), the position of which can be adjusted as required, in particular between said arms (11) and a surface (17) acting as a stop, arranged either at the level of the head (3) or at the level of the base ( 1) as appropriate. Rotule selon la revendication 3, caractérisée en ce que la came (16') se présente sous la forme d'un U dont les branches sont aménagées avec un profil (44') façon coin ou rampe, laquelle came (16') est guidée comme un tiroir, centrée sur l'organe de liaison en forme de pivot (30) interposé entre la surface (17) faisant butée et la platine (12) portant l'articulation des bras rigides (11).Ball joint according to claim 3, characterized in that the cam (16 ') is in the form of a U, the branches of which are arranged with a profile (44') in the form of a wedge or ramp, which cam (16 ') is guided like a drawer, centered on the pivot-shaped connecting member (30) interposed between the surface (17) forming a stop and the plate (12) carrying the articulation of the rigid arms (11). Rotule selon la revendication 4, caractérisée en ce que les flancs internes des branches de la came (16') en forme de U, comportent une sorte de crantage (52) coopérant avec l'organe de liaison en forme de pivot (30) interposé entre la surface (17) faisant office de butée et la platine (12) d'articulation des bras (11), pour établir au moins deux possibilités de réglage de la position de ladite came (16'). Ball joint according to claim 4, characterized in that the internal sides of the legs of the cam (16 ') in the shape of a U, comprise a sort of notch (52) cooperating with the connecting member in the form of a pivot (30) interposed between the surface (17) acting as a stop and the plate (12) of articulation of the arms (11), to establish at least two possibilities of adjusting the position of said cam (16 '). Rotule selon la revendication 3, caractérisée en ce que la came (16) se présente sous la forme d'un fer à cheval, clipsé sur l'organe de liaison en forme de pivot (30) interposé entre la surface d'appui (17) faisant office de butée et la platine (12) portant l'articulation des bras (11), laquelle came comporte des profils (44) aménagés façon coin ou rampe avec une symétrie par rapport à son axe de rotation (46).Ball joint according to claim 3, characterized in that the cam (16) is in the form of a horseshoe, clipped to the pivot-shaped connecting member (30) interposed between the bearing surface (17 ) acting as a stop and the plate (12) carrying the articulation of the arms (11), which cam has profiles (44) arranged in a corner or ramp manner with symmetry with respect to its axis of rotation (46). Rotule selon la revendication 3, caractérisée en ce que la came (16") se présente sous la forme d'un anneau interposé entre la surface d'appui (17) de la tête (3) et la platine (12) d'articulation des bras (11), lequel anneau est centré et manoeuvré au moyen d'un axe (57) qui est guidé dans un orifice formé dans ladite surface (17), lequel axe faisant partie d'un organe du genre bouton (58) aménagé pour entraíner ladite came en rotation, laquelle came (16") comporte des profils façon coin (61) ou rampe disposés symétriquement par rapport à son axe de rotation.Ball joint according to claim 3, characterized in that the cam (16 ") is in the form of a ring interposed between the bearing surface (17) of the head (3) and the hinge plate (12) arms (11), which ring is centered and maneuvered by means of an axis (57) which is guided in an orifice formed in said surface (17), which axis forming part of a button-like organ (58) arranged to drive said cam in rotation, which cam (16 ") has wedge-shaped profiles (61) or ramp arranged symmetrically with respect to its axis of rotation. Rotule selon la revendication 7, caractérisée en ce que la traverse (31) de la tête (3), comportant la surface d'appui (17) et la platine (12) d'articulation des bras rigides (11), sont liées de façon monobloc au moyen d'une paroi de liaison (63) décalée formant ainsi un logement pour la came (16") en forme d'anneau.Ball joint according to claim 7, characterized in that the crosspiece (31) of the head (3), comprising the bearing surface (17) and the plate (12) for articulation of the rigid arms (11), are linked by in a single piece by means of an offset connecting wall (63) thus forming a housing for the ring-shaped cam (16 "). Rotule selon l'une quelconque des revendications 3 à 8, caractérisée en ce que les bras rigides (11) comportent, à proximité de leur articulation sur la platine (12), des mentonnets (32) destinés à prendre appui sur les profils des cames (16, 16', 16") selon le cas.Ball joint according to any one of claims 3 to 8, characterized in that the rigid arms (11) comprise, near their articulation on the plate (12), studs (32) intended to bear on the profiles of the cams (16, 16 ', 16 ") as appropriate. Rotule selon l'une quelconque des revendications 3 à 9, caractérisée en ce que les profils des cames sont aménagés sous la forme de lamelles élastiques (50, 44', 60) dont la face située côté mentonnets, se situe dans le plan de l'extrémité de ces derniers de façon à les maintenir en contact direct avec lesdites lamelles, lesquelles lamelles faisant office de dispositif de rappel élastique des bras, vers leur position repos.Ball joint according to any one of Claims 3 to 9, characterized in that the profiles of the cams are arranged in the form of elastic lamellae (50, 44 ', 60), the face of which located on the chin side, lies in the plane of the end of the latter so as to maintain them in direct contact with said strips, which strips acting as elastic return device of the arms, towards their rest position.
EP03291216A 2002-05-24 2003-05-22 Stiffness adjustment system for bed base ball joint Expired - Lifetime EP1364600B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0206344 2002-05-24
FR0206344A FR2839870B1 (en) 2002-05-24 2002-05-24 FIRMITY ADJUSTMENT SYSTEM FOR BALL JOINT

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EP1364600A1 true EP1364600A1 (en) 2003-11-26
EP1364600B1 EP1364600B1 (en) 2008-09-03

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EP (1) EP1364600B1 (en)
AT (1) ATE406822T1 (en)
DE (1) DE60323292D1 (en)
ES (1) ES2314164T3 (en)
FR (1) FR2839870B1 (en)

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EP1649786A1 (en) * 2004-10-21 2006-04-26 Siegbert Hartmann Fitting for hinging the slat support members of an undermattress
EP1714588A1 (en) 2005-04-22 2006-10-25 Siegbert Hartmann Slat support with integrated stiffness adjustment
EP1754430A1 (en) * 2005-08-16 2007-02-21 Siegbert Hartmann Spring arrangement for supporting a mattress
FR2892907A1 (en) * 2005-11-10 2007-05-11 Creations Andre Renault Soc Pa Slat e.g. bed slat, support for forming slat support surface e.g. slatted bed base, has suspension section present in form of suspension arm extending under slat and comprising end with elastically deformable connection connected to slat
EP1790256A1 (en) * 2005-11-23 2007-05-30 Industrias Hidraulicas Pardo, S.A. Support for bed slats with elasticity adjustment
FR2898476A1 (en) * 2006-03-20 2007-09-21 Delahousse Et Fils Sa Subbase or batten type seat support, has elastic connection including arm whose one end is integrated to base and another end to head by intermediate articulation zone, where arm extends in direction of longitudinal axis of head
EP1894494A1 (en) * 2006-08-30 2008-03-05 Hans Ulrich Dipl.-Ing. Schwenk Spring system for mattresses
EP1927302A1 (en) * 2006-11-29 2008-06-04 Matra AG Bearing element for supporting slats on the bed base longitudinal supports
DE102008009450A1 (en) 2007-05-08 2008-11-13 Schwenk, Hans Ulrich, Dipl.-Ing. Height adjustable slatted bed base has cams or wedges to vary the spacing between the mounting and the slat supports
EP1969972A3 (en) * 2007-03-14 2011-03-16 Siegbert Hartmann Adjustable single spring-element of a seat or lounger
EP2526835A1 (en) * 2011-05-23 2012-11-28 Tournadre SA Standard Gum Suspension device for a bed base with adjustable stiffness
EP2666389A1 (en) * 2012-05-23 2013-11-27 Tournadre SA Standard Gum Suspension device for a bed base with adjustable stiffness
EP3087873A1 (en) * 2015-04-29 2016-11-02 Bekina NV Adjustable slat suspension device

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EP1649786A1 (en) * 2004-10-21 2006-04-26 Siegbert Hartmann Fitting for hinging the slat support members of an undermattress
EP1714588A1 (en) 2005-04-22 2006-10-25 Siegbert Hartmann Slat support with integrated stiffness adjustment
EP1754430A1 (en) * 2005-08-16 2007-02-21 Siegbert Hartmann Spring arrangement for supporting a mattress
FR2892907A1 (en) * 2005-11-10 2007-05-11 Creations Andre Renault Soc Pa Slat e.g. bed slat, support for forming slat support surface e.g. slatted bed base, has suspension section present in form of suspension arm extending under slat and comprising end with elastically deformable connection connected to slat
EP1790256A1 (en) * 2005-11-23 2007-05-30 Industrias Hidraulicas Pardo, S.A. Support for bed slats with elasticity adjustment
ES2285921A1 (en) * 2005-11-23 2007-11-16 Industrias Hidraulicas Pardo, S.A. Support for bed slats with elasticity adjustment
FR2898476A1 (en) * 2006-03-20 2007-09-21 Delahousse Et Fils Sa Subbase or batten type seat support, has elastic connection including arm whose one end is integrated to base and another end to head by intermediate articulation zone, where arm extends in direction of longitudinal axis of head
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EP1894494A1 (en) * 2006-08-30 2008-03-05 Hans Ulrich Dipl.-Ing. Schwenk Spring system for mattresses
EP1927302A1 (en) * 2006-11-29 2008-06-04 Matra AG Bearing element for supporting slats on the bed base longitudinal supports
EP1969972A3 (en) * 2007-03-14 2011-03-16 Siegbert Hartmann Adjustable single spring-element of a seat or lounger
DE102008009450A1 (en) 2007-05-08 2008-11-13 Schwenk, Hans Ulrich, Dipl.-Ing. Height adjustable slatted bed base has cams or wedges to vary the spacing between the mounting and the slat supports
EP2526835A1 (en) * 2011-05-23 2012-11-28 Tournadre SA Standard Gum Suspension device for a bed base with adjustable stiffness
FR2975574A1 (en) * 2011-05-23 2012-11-30 Tournadre Sa Standard Gum SUSPENSION DEVICE FOR SOMMIER WITH ADJUSTABLE STIFFNESS
EP2666389A1 (en) * 2012-05-23 2013-11-27 Tournadre SA Standard Gum Suspension device for a bed base with adjustable stiffness
US9072387B2 (en) 2012-05-23 2015-07-07 Tournadre Sa Standard Gum Suspension device for a bed base with adjustable stiffness
EP3087873A1 (en) * 2015-04-29 2016-11-02 Bekina NV Adjustable slat suspension device

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Publication number Publication date
EP1364600B1 (en) 2008-09-03
FR2839870A1 (en) 2003-11-28
DE60323292D1 (en) 2008-10-16
ES2314164T3 (en) 2009-03-16
ATE406822T1 (en) 2008-09-15
FR2839870B1 (en) 2004-08-27

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