US20060033250A1 - Suspension device for a bed or seat base of the multi-element type - Google Patents
Suspension device for a bed or seat base of the multi-element type Download PDFInfo
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- US20060033250A1 US20060033250A1 US11/257,976 US25797605A US2006033250A1 US 20060033250 A1 US20060033250 A1 US 20060033250A1 US 25797605 A US25797605 A US 25797605A US 2006033250 A1 US2006033250 A1 US 2006033250A1
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- Prior art keywords
- suspension structure
- foot
- suspension
- top plate
- slat
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
- A47C23/002—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases with separate resilient support elements, e.g. elastomeric springs arranged in a two-dimensional matrix pattern
Definitions
- the invention relates to a universal suspension device for a bed or a seat, for placing between a support surface and a padding element.
- the invention relates to an individual suspension device for a bed or seat base of the multi-element type, the device being for interposing between a platform determining a support surface and a padding element such as a mattress, and comprising a foot for fixing to an element of the platform, a suspension structure fixed to the foot, and a top plate carried by the suspension structure and serving as a support for the padding element, said suspension structure being circularly symmetrical about a vertical axis.
- suspension devices are placed in rows and columns and are fixed to rigid slats constituting the platform.
- the elements are commonly symmetrical about a transverse midplane and about a longitudinal midplane, and their hardness is not uniform, depending on the slope imparted to the top plate.
- WO 01/15572 describes an individual suspension device comprising a foot and a suspension structure in which the suspension structure, on its own and at rest, is in the form of a central ring having a plurality of resilient radial arms diverging therefrom.
- the ends of these arms have means for fixing to a ring of the foot.
- the arms take up the shape of spherical sectors that are separated by lateral openings, but they are then subjected to elastic stress, and in the event of one of the fixing means breaking, they necessarily return to a radial position.
- DE 29 903 423 presents the state of the art closest to the invention and it provides a hollow suspension structure of spherical shape made out of a foam of resilient synthetic material, having holes at its top and bottom ends for fixing to the foot and to the top plate by means of clips. After assembly, the suspension structure is normally airtight, and it functions like a balloon. The problem which arises is that of providing leak tightness around the holes.
- the invention proposes a novel type of suspension in which the question of air tightness no longer arises.
- the invention achieves this object by the suspension structure on its own and at rest being in the form of a one-piece hollow sphere comprising a plurality of sectors separated from one another by lateral openings and made of a flexible synthetic material or a vulcanized rubber of hardness lying in the range 40 on the Shore A scale to 70 on the Shore D scale.
- the wall of the suspension structure contributes to supporting compression and bending forces when a load is to be carried, and the inside of the structure is advantageously open to atmospheric pressure.
- the foot has means for preventing it from turning after it has been fixed to the platform element.
- the suspension structure and the top plate have co-operating means for connecting them together in traction and in rotation about the axis of symmetry of said suspension structure.
- These means preferably comprise a bayonet fixing system and a clip system.
- the foot and the suspension structure can be made as a single piece. They can also be made as two separate pieces. In which case the suspension structure and the foot include co-operating means enabling them to be connected together in traction and in rotation about the axis of symmetry of said suspension structure.
- connection between the suspension structure and the foot can be implemented in various ways, either by a dovetail slideway system together with a clip system for locking the two pieces together after they have been assembled, or by a clip system with a tenon being positioned in a mortise, or by a bayonet system in combination with a clip system, or by a clamp device guided by a slideway during assembly, together with a device for locking against rotation and which takes up its position automatically at the end of assembly.
- the mutual connection means are formed on the two pieces during molding thereof.
- the suspension structure can be spherical and comprise sectors alternating with lateral openings that are regularly distributed about the axis of symmetry of said structure.
- the dimensions and the thickness of said sectors are determined as a function of the desired stiffness.
- its internal cavity can contain a removable stiffening member placed on its axis of symmetry, said member advantageously having a plug at its top end which is received in a through orifice formed in a head for fixing the top plate and formed at the top end of the suspension structure.
- FIG. 1 is a perspective view of a first embodiment of a suspension device of the invention
- FIG. 2 is a section view on a vertical transverse plane through the FIG. 1 suspension device
- FIGS. 3 and 4 are perspective views showing respectively the bottom and top faces of the foot of the FIG. 1 device
- FIGS. 5 and 6 are perspective views respectively showing the bottom and top faces of the suspension structure of the FIG. 1 device
- FIGS. 7 and 8 are perspective views showing respectively the bottom and top faces of the top plate of the FIG. 1 suspension device
- FIGS. 9 and 10 are perspective views of the stiffening member placed inside the suspension structure of the FIG. 1 device;
- FIG. 11 is a section view on a vertical plane of symmetry through a first variant of the FIG. 1 suspension device;.
- FIG. 12 is a perspective view of the suspension structure of the FIG. 11 device
- FIG. 13 is a perspective view of the foot of the FIG. 11 device
- FIG. 14 is a perspective view of a second variant of the FIG. 1 suspension device
- FIG. 15 is a perspective view of the foot of FIG. 14 ;
- FIG. 16 is a perspective view from beneath of the suspension structure of FIG. 14 ;
- FIG. 17 is a perspective view of a third variant of the FIG. 1 suspension device
- FIG. 18 is a perspective view of the top face of the foot of the FIG. 17 suspension device, and a view from beneath of the FIG. 17 suspension structure;
- FIGS. 19 and 20 are perspective views respectively of the bottom face and of the top face of a foot in a fourth variant of the invention.
- FIG. 21 is a perspective view of a suspension structure suitable for fitting on the foot of FIGS. 19 and 20 ;
- FIGS. 22 and 23 are perspective views respectively of a suspension structure and of a foot constituting a fifth variant of the invention.
- FIGS. 24 and 25 are perspective views respectively of a suspension structure and of a foot constituting a sixth variant of the invention.
- FIGS. 26 and 27 are perspective views respectively of a suspension structure and of a foot constituting a seventh variant of the invention.
- FIG. 28 is a section view on a vertical transverse plane showing a second embodiment of a suspension device of the invention.
- FIG. 29 is a perspective view of the suspension structure of the FIG. 28 device.
- FIG. 30 is a perspective view of the foot of the FIG. 28 device
- FIG. 31 is a perspective view of the top plate of the FIG. 28 device.
- FIG. 32 is a section through a third embodiment of the invention.
- FIG. 33 is a perspective view of a cap suitable for the first embodiment of the invention as shown in FIGS. 1 to 10 :
- FIG. 34 is a section view on a vertical transverse plane through an eighth variant of the first embodiment of the invention.
- FIGS. 35 and 36 are perspective views respectively showing the bottom and top faces of the foot of the FIG. 34 variant
- FIGS. 37 and 38 are perspective views respectively showing the bottom and top faces of the suspension structure of the FIG. 34 device
- FIG. 39 is a side view of the inside face of a slat support.
- FIG. 40 is a perspective view of a slat support.
- FIGS. 1 to 10 show an individual suspension device 1 of a multi-element base, for a seat or a bed for example, constituting a preferred embodiment of the invention.
- the suspension device 1 is for fixing to a slat of a support platform (not shown in the figures), and it essentially comprises three elements: a foot 2 for fixing to a slat, a suspension structure 3 mounted on the foot 2 , and a top plate 4 carried by the suspension structure 3 .
- the plate 4 serves as a support for a padding element, e.g. a mattress which is not shown in the drawings.
- the suspension device 1 can also include a stiffening member 5 which enables the stiffness of the suspension device 1 to be modified depending on its position within the base.
- the base comprises a plurality of suspension devices disposed in juxtaposed rows and columns.
- the foot 2 which is shown in detail in FIGS. 3 and 4 is made of a suitable rigid synthetic material such as polypropylene or polyamide, by molding, or else it is made of metal. It has a central orifice 6 enabling it to be fixed to a slat by means of a screw, and on its bottom face 2 a it has a stud 7 for being received in a hole formed in the slat, so as to prevent the foot 2 from turning after it has been fixed to the slat.
- the foot 2 also includes, on its top face 2 b, two lateral tongues 8 a and 8 b which extend in the same direction parallel to the slat, and it has a hole 9 located above the stud 7 .
- the tongues 8 a and 8 b serve to retain the suspension structure 3
- the hole 9 serves to prevent the suspension structure 3 from moving, in particular from turning after it has been mounted, as explained below.
- the suspension structure 3 shown in detail in FIGS. 5 and 6 is circularly symmetrical about a vertical axis X. It is made of a flexible synthetic material of the thermoplastic elastomer (TPE) type or a vulcanized rubber. The hardnesses of the materials are adapted to the loads that are to be supported. These hardnesses lie preferably in the range 40 on the Shore A scale to 70 on the Shore D scale.
- the suspension structure 3 is in the form of a sphere having three sectors 10 a, 10 b, 10 c separated by three lateral openings 11 a, 11 b, 11 c which are regularly spaced apart around the axis X. The circumferential extent of the sectors 10 a, 10 b, 10 c and of the lateral openings 11 a, 11 b, 11 c around the axis of revolution X is substantially equal to 60°.
- the sectors 10 a, 10 b, 10 c connect a fixing head 12 for the plate 4 situated in the top zone of the suspension structure 3 to a bottom 13 situated in its bottom zone.
- the bottom 13 is generally plane and has a thick zone 14 on its top face extending between the sector 10 a and the opposite opening 11 a.
- a tongue 15 is cut out by means of a U-shaped slot in the thick zone 14 .
- a stud 16 is formed on the bottom face of the tongue 15 .
- the width of the thick zone 14 is equal to the distance between the two tongues 8 a and 8 b on the foot 2 .
- the thickness of the bottom 13 outside the thick zone 14 is equal to the distance between the tongues 8 a, 8 b of the foot 2 and the top race 2 b of said foot.
- the openings 11 b, 11 c are put into register with the ends of the tongues 8 a and 8 b and the bottom 13 is slid under the tongues 8 a and 8 b.
- the tongues 8 a and 8 b are guided by the edges of the thick zone 14 .
- a vertical force is applied to its end.
- the stud 16 moves down again on being received in the hole 9 of the base 2 .
- the suspension structure 3 is then prevented from being pulled away by the tongues 8 a and 8 b which act as clamps, and it is prevented from turning about the axis X by the stud 16 received in the hole 9 .
- the positioning of the stud 16 is naturally determined as a function of the position of the hole 9 relative to the axis X.
- the head 12 of the suspension structure 17 is in the form of a neck having a through orifice 17 on the axis X.
- the head 12 is designed to be received in a central orifice 18 formed in the top plate 4 .
- the peripheral wall of the head 12 is generally cylindrical and it terminates at the top end of the suspension structure 3 to form two radially opposite flange portions 19 a and 19 b.
- Respective axial ribs 20 are formed on the peripheral wall of the head 12 beneath each of the flange portions 19 a and 19 b.
- the head 12 is connected to the sectors 10 a, 10 b, 10 c via an annular shoulder 21 serving as a support for the top plate 4 .
- the top plate 4 which is shown in detail in FIGS. 7 and 8 is generally rectangular or square in shape. It could equally well have any other geometrical shape. The essential point is that the shapes of the top plates fitted to a base, for example, should be complementary and suitable for associating with one another.
- the plate 4 can be made of any kind of material, in particular of a thermoplastic material, wood, or in a multi-component laminate. It can be covered in cloth for reasons of appearance. It preferably has a plurality of slots or openings enabling air to pass through the padding element that it supports. Its central orifice 18 matches the dimensions of the fixing head 12 and its flange portions 19 a and 19 b.
- the central orifice 18 has diametrically opposite projections 22 which slide between the ends of the flange portions 19 a and 19 b while the plate 4 is being put into the fixing head 12 .
- Each projection 22 has a groove 23 for co-operating with a rib 20 after the plate 4 has been turned through one-fourth of a turn about the axis X.
- the axial and circumferential dimensions of the projections 22 are such that after being turned through one-fourth of a turn about the axis X, the projections 22 are received under the flange portions 19 a and 19 b, and the grooves 23 co-operate with the ribs 20 .
- This type of fastening is known, is referred to as a “bayonet” fastening, and requires no further explanation.
- the top plate 4 After being put into place, the top plate 4 is prevented from moving relative to the suspension structure 3 , both axially and in rotation.
- FIGS. 9 and 10 are detail views of a one-piece stiffening member 5 made by molding a material similar to the material used for making the suspension structure 3 .
- This stiffening member 5 is inserted into the suspension structure 3 on its axis X via the orifice 17 in the head 12 for fixing the top plate 4 .
- this member comprises a plug 24 which closes the orifice 17 .
- the plug 24 has means enabling it to be fixed in the orifice 17 , for example by turning the stiffening member 5 relative to the suspension structure 3 during assembly.
- the stiffening member 5 is interposed between the bottom 13 and the head 12 for fixing the top plate 4 .
- the stiffening member 5 serves to make the suspension harder in those zones of the base where loads are assumed to be greater.
- the orifice 17 of the fixing head 12 is closed by a cap 90 , shown in FIG. 33 .
- FIGS. 11 to 13 show a first variant of the above-described suspension device.
- the bottom 13 of the suspension structure 3 is of uniform thickness and it presents a groove 30 facing the lateral opening 11 a which serves to guide a middle wall connecting a tongue 31 formed on the top face 2 b of the foot 2 to said foot 2 .
- the foot 2 On its bottom face 2 a, the foot 2 also has a tenon 32 for quick fastening to a slat, and two lateral hooks 33 a, 33 b which engage the edges of the slat, and on its top face 2 b the foot has a clip device 34 facing the free end of the tongue 31 which serves to prevent the suspension structure 3 from moving relative to the foot 2 after assembly.
- the head 12 for fixing the top plate 4 is solid and at its periphery it has a plurality of housings 35 into which resilient fingers formed in the central orifice of the top plate 4 are clipped, as described in the Applicants' French patent application FR 98/00187, and which can be seen in the top plate 4 shown in FIG. 31 .
- FIGS. 14 to 16 show a second variant of the invention.
- the foot 2 has a central orifice 6 for receiving a screw for fixing it to a slat, and a stud 7 which projects from its bottom face 2 a for preventing it from turning on the slat.
- the foot 2 can also have a plurality of studs 7 in alignment or a rib on its bottom face 2 a so as to enable it to be docked blind in a groove formed in the slat so as to enable the foot 2 to be installed more accurately and more quickly on the platform that defines the support surface.
- the suspension structure 3 is fixed on the foot 2 by means of a bayonet fastening.
- the top face 2 b of the foot 2 has three curvilinear hooks 40 a, 40 b, 40 c facing towards the axis of the foot 2
- the bottom 13 presents three hooks 41 a, 41 b, 41 c facing radially outwards and co-operating with the hooks 40 a, 40 b, 40 c when the bottom is turned about its own axis X, then coinciding with the axis of the foot 2 .
- Ribs 42 formed on top of the hooks 41 a, 41 b, 41 c co-operate with grooves 43 formed in the hooks 40 a, 40 b, 40 c, respectively, so as to prevent the suspension structure 3 from turning relative to the foot 2 once assembled therewith.
- the head 12 for fixing the top plate 4 is similar to that shown in FIGS. 11 and 12 , however it could equally well be similar to that shown in FIGS. 2 and 6 .
- FIGS. 17 and 18 show a third variant of the invention.
- the foot 2 On its top face, the foot 2 has two opposite hooks 44 a and 44 b that are directed radially outwards and that engage the nearest walls of a rectangular opening 45 formed in the center of the bottom 13 of the suspension structure 3 and dimensioned so as to allow the hooks 44 a and 44 b to pass through.
- the foot 2 On its top face, the foot 2 also has two studs 46 a and 46 b which slide on circularly arcuate ramps formed in the bottom face of the bottom 13 and which are received in holes formed in the bottom face of the bottom 13 so as to lock the suspension structure 3 on the foot 2 after being turned through one-fourth of a turn.
- the means for connecting together the suspension structure 3 and the foot 2 comprise a slideway of dovetail shape.
- the bottom 13 of the suspension structure 3 has a rib 50 on its bottom face, which rib is of dovetail section and extends from the axis X to the edge of the bottom 13 , and is suitable for being slidably inserted into a groove 51 likewise of dovetail section formed in the top face 2 b of the foot 2 .
- the foot 2 also presents two parallel walls 52 a, 52 b projecting from its bottom face 2 a suitable for being placed on either side of a slat, and a central stud 53 which is received in a hole formed in the slat.
- FIGS. 22 and 23 show a fifth variant of the invention.
- the bottom 13 of the suspension structure 3 has a central hole 54 in which a half-ball 55 formed on the top face 2 b of the foot 2 can be clipped.
- a tenon 56 is formed on the bottom face of the bottom 13 . This tenon 56 is received in a mortise 57 formed in the top face 2 b of the foot 2 , and serves to prevent the suspension structure 3 from turning relative to the foot 2 .
- the foot 2 also has side walls 52 a and 52 b and a stud 53 as in the fourth variant, enabling it to be assembled on a slat and prevented from turning relative thereto.
- the foot 2 has a central orifice 6 in its top face 2 b enabling it to be fixed to a slat by means of a screw.
- This central orifice is surrounded by a rectangular structure 60 which is received in a rectangular opening 61 formed in the center of the bottom 13 .
- the rectangular structure 60 is fitted with resilient tongues 62 a and 62 b which engage the rims of the rectangular opening 61 , as can be seen in FIG. 24 .
- FIGS. 26 and 27 show a seventh variant of the invention.
- the bottom face of the bottom 13 presents a central ball 63 which can be slid along a radial groove 64 formed in the top face 2 b of the foot 2 .
- Other means serve to prevent the suspension structure 3 from turning relative to the foot 2 after being assembled thereto.
- FIGS. 28 to 31 show a second embodiment of the invention.
- This suspension device 1 likewise comprises a foot 2 as shown in FIG. 30 , a suspension structure 3 of spherical shape as shown in FIG. 29 , and a top plate of square shape as shown in FIG. 31 .
- the suspension structure 3 presents a head 12 for fixing the top plate 4 , which head has a cylindrical wall terminated by an annular flange 70 for retaining resilient fingers 71 provided on the inside wall of the central orifice 18 in the top plate 4 .
- the inside wall of this orifice 18 also has notches 72 suitable for being placed astride opposite radial ribs 73 a and 73 b formed in the top portion of the sphere at the bottom of the head 12 so as to prevent the top plate 4 turning about the axis X relative to the suspension structure 3 after they have been assembled together.
- the suspension structure 3 In its bottom hemisphere, the suspension structure 3 has three sectors 10 a, 10 b, and 10 c which are separated by slots 11 a, 11 b, and 11 c of small circumferential extent. Compared with the first embodiment, the suspension structure 3 does not have a bottom member 13 in its bottom zone. The bottom ends of the sectors 10 a, 10 b, and 10 c are thus free.
- the foot 2 Beneath its bottom face, the foot 2 has side walls 52 a and 52 b suitable for receiving a slat between them, and it has a tenon 54 for fixing it to the slat, while on its top face 2 b it has an upwardly flared neck 75 made up of three elements that are regularly spaced apart around the axis of the foot 2 , each presenting an upwardly-extending rib 76 on its outside face of circumferential size matching the width of a slot 11 a, 11 b, or 11 c.
- the bottom ends of the sectors 10 a, 10 b, and 10 c are urged elastically outwards, it is possible to fit the bottom portion of the suspension structure 3 over the neck. 75 so that the ribs 76 are received in the slots 11 a, 11 b, and 11 c.
- FIG. 32 shows a third embodiment of the invention.
- the foot 2 and the suspension structure are made as a single piece.
- the foot 2 presents two tenons 80 a and 80 b on its bottom face 2 a enabling it to be fastened quickly in holes formed in a slat, and optionally an abutment 81 which bears against a side face of the slat.
- FIG. 33 shows a cap 90 having two tabs 91 a and 91 b suitable for sliding into the gap between the flange portions 19 a and 19 b of the head 12 and the projections 22 of the top plate 4 in the first embodiment of the invention as described above after the top plate 4 has been turned through one-fourth of a turn and non-return snap-fastening has taken place.
- the cap 90 can be made of overmolded cloth or as a piece of plastics material worked by thermocompression. It can carry attractive markings or decoration.
- FIGS. 34 to 38 show an eighth variant of the suspension device as described with reference to FIGS. 1 to 10 .
- the foot 2 differs from that shown in FIGS. 3 and 4 by the fact that it has a notch 100 in its periphery extending between the free ends of the lateral tongues 8 a and 8 b. On its bottom face 2 a, extending along the notch 100 , it also has a flange 101 situated above the support surface of the slat.
- the top face 2 b of the foot 2 does not have the hole 9 shown in FIG. 4 .
- This top face 2 b presents portions of extra thickness 102 a and 102 b in register with the lateral tongues 8 a and 8 b.
- the suspension structure 3 fitted onto the foot 2 and shown in detail in FIGS. 37 and 38 has a fixed zone 14 on the top face of the bottom 13 like the suspension structure 3 shown in FIGS. 5 and 6 , which thick zone is located between the lateral tongues 8 a and 8 b once the suspension structure 3 has been mounted on the foot 2 , and on the bottom face of the bottom 13 it has parallel ribs 103 a and 103 b which are located between the portions 102 a and 102 b of extra thickness on the top face 2 b of the foot, once the suspension structure 3 has been mounted on the foot 2 .
- the ribs 103 a and 103 b are placed beneath the thick zone 14 and they are parallel to the side edges of said thick zone 14 .
- the suspension structure 3 Beneath the bottom face of the bottom 13 , and in register with the lateral opening 11 a, the suspension structure 3 also presents a hook 104 which engages in the notch 100 and whose end co-operates with the flange 101 to lock the suspension structure 3 on the foot 2 .
- the suspension structure 3 is similar to that shown in FIGS. 5 and 6 concerning its sectors 10 a, 10 b, 10 c, its lateral openings 11 a, 11 b, 11 c, and its head 12 for fixing a top plate 4 .
- FIGS. 39 and 40 show a support 110 for one end of a slat of a base, the slat being represented by dashed lines. Suspension devices 1 as described above are mounted on such slats, being placed side by side.
- the support 110 has a vertical wall 111 for placing against the inside face of a long side member and for being fixed thereto by screws passing through orifices 112 a and 112 b formed in the wall 111 , or by tenons formed on said vertical wall 111 , or by a hooking angle member resting on the top face of the long side member.
- a cradle 113 extends horizontally from the bottom region of the vertical wall 111 .
- the cradle 113 presents two end zones 114 a and 114 b that curve upwards.
- the middle zone of the cradle 113 carries a resilient tongue 115 which carries one end of a slat.
- a respective resilient element namely a side lip 116 which bears against a corresponding flank of the slat, and an upside-down U-shaped resilient element 117 whose free end 118 bears against the top face of a slat.
- the lateral lips 116 clamp against the flanks of the slat, thus accommodating variations in manufacturing dimensions.
- the resilient elements 117 serve to prevent the slats from moving upwards, while the resilient tongue 115 compensates for variations in slat thickness and also serves to damp a set of suspension devices 1 fixed on the slat.
- the top plate 4 is in the form of a quadrangle and it is symmetrical about longitudinal and transverse planes containing the axis X.
- the top plate 4 fitted to suspension devices 1 located at the edges of a base can carry top plates 4 of slightly different shape.
- the systems for fixing the plate 4 to the head 12 of the suspension structure 3 enable the plate 4 to be held stationary relative to the structure 3 when subjected to traction along the axis X and when subjected to twisting about the axis X.
- the systems for fixing the suspension structure 3 to the foot 2 and for fixing the foot 2 to a slat of the support platform are same applies.
Abstract
The invention provides an individual suspension device for a bed or seat base of the multi-element type, the device being for interposing between a platform determining a support surface and a padding element such as a mattress, and comprising a foot for fixing to an element of the platform, a suspension structure fixed to the foot, and a top plate carried by the suspension structure and serving as a support for the padding element, said suspension structure being circularly symmetrical about a vertical axis, wherein the suspension structure is a single hollow piece and is made of a flexible synthetic material or a vulcanized rubber having hardness lying in the range 40 on the Shore A scale to 70 on the Shore D scale.
Description
- The invention relates to a universal suspension device for a bed or a seat, for placing between a support surface and a padding element.
- More precisely, the invention relates to an individual suspension device for a bed or seat base of the multi-element type, the device being for interposing between a platform determining a support surface and a padding element such as a mattress, and comprising a foot for fixing to an element of the platform, a suspension structure fixed to the foot, and a top plate carried by the suspension structure and serving as a support for the padding element, said suspension structure being circularly symmetrical about a vertical axis.
- In general, such individual suspension devices are placed in rows and columns and are fixed to rigid slats constituting the platform. The elements are commonly symmetrical about a transverse midplane and about a longitudinal midplane, and their hardness is not uniform, depending on the slope imparted to the top plate.
- WO 01/15572 describes an individual suspension device comprising a foot and a suspension structure in which the suspension structure, on its own and at rest, is in the form of a central ring having a plurality of resilient radial arms diverging therefrom. The ends of these arms have means for fixing to a ring of the foot. After these arm ends have been assembled to the ring of the foot, the arms take up the shape of spherical sectors that are separated by lateral openings, but they are then subjected to elastic stress, and in the event of one of the fixing means breaking, they necessarily return to a radial position.
- DE 29 903 423 presents the state of the art closest to the invention and it provides a hollow suspension structure of spherical shape made out of a foam of resilient synthetic material, having holes at its top and bottom ends for fixing to the foot and to the top plate by means of clips. After assembly, the suspension structure is normally airtight, and it functions like a balloon. The problem which arises is that of providing leak tightness around the holes.
- Starting from that state of the art, the invention proposes a novel type of suspension in which the question of air tightness no longer arises.
- The invention achieves this object by the suspension structure on its own and at rest being in the form of a one-piece hollow sphere comprising a plurality of sectors separated from one another by lateral openings and made of a flexible synthetic material or a vulcanized rubber of hardness lying in the range 40 on the Shore A scale to 70 on the Shore D scale.
- Thus, only the wall of the suspension structure contributes to supporting compression and bending forces when a load is to be carried, and the inside of the structure is advantageously open to atmospheric pressure.
- In order to make it easier to position the top plate relative to the foot and to the platform element, the foot has means for preventing it from turning after it has been fixed to the platform element.
- The suspension structure and the top plate have co-operating means for connecting them together in traction and in rotation about the axis of symmetry of said suspension structure. These means preferably comprise a bayonet fixing system and a clip system.
- The foot and the suspension structure can be made as a single piece. They can also be made as two separate pieces. In which case the suspension structure and the foot include co-operating means enabling them to be connected together in traction and in rotation about the axis of symmetry of said suspension structure.
- The connection between the suspension structure and the foot can be implemented in various ways, either by a dovetail slideway system together with a clip system for locking the two pieces together after they have been assembled, or by a clip system with a tenon being positioned in a mortise, or by a bayonet system in combination with a clip system, or by a clamp device guided by a slideway during assembly, together with a device for locking against rotation and which takes up its position automatically at the end of assembly.
- In any event, the mutual connection means are formed on the two pieces during molding thereof.
- The suspension structure can be spherical and comprise sectors alternating with lateral openings that are regularly distributed about the axis of symmetry of said structure. The dimensions and the thickness of said sectors are determined as a function of the desired stiffness.
- In order to modify the stiffness of the suspension structure, its internal cavity can contain a removable stiffening member placed on its axis of symmetry, said member advantageously having a plug at its top end which is received in a through orifice formed in a head for fixing the top plate and formed at the top end of the suspension structure.
- Other advantages and characteristics of the invention appear on reading the following description of various embodiments made with reference to the accompanying drawings, in which:
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FIG. 1 is a perspective view of a first embodiment of a suspension device of the invention; -
FIG. 2 is a section view on a vertical transverse plane through theFIG. 1 suspension device; -
FIGS. 3 and 4 are perspective views showing respectively the bottom and top faces of the foot of theFIG. 1 device; -
FIGS. 5 and 6 are perspective views respectively showing the bottom and top faces of the suspension structure of theFIG. 1 device; -
FIGS. 7 and 8 are perspective views showing respectively the bottom and top faces of the top plate of theFIG. 1 suspension device; -
FIGS. 9 and 10 are perspective views of the stiffening member placed inside the suspension structure of theFIG. 1 device; -
FIG. 11 is a section view on a vertical plane of symmetry through a first variant of theFIG. 1 suspension device;. -
FIG. 12 is a perspective view of the suspension structure of theFIG. 11 device; -
FIG. 13 is a perspective view of the foot of theFIG. 11 device; -
FIG. 14 is a perspective view of a second variant of theFIG. 1 suspension device; -
FIG. 15 is a perspective view of the foot ofFIG. 14 ; -
FIG. 16 is a perspective view from beneath of the suspension structure ofFIG. 14 ; -
FIG. 17 is a perspective view of a third variant of theFIG. 1 suspension device; -
FIG. 18 is a perspective view of the top face of the foot of theFIG. 17 suspension device, and a view from beneath of theFIG. 17 suspension structure; -
FIGS. 19 and 20 are perspective views respectively of the bottom face and of the top face of a foot in a fourth variant of the invention; -
FIG. 21 is a perspective view of a suspension structure suitable for fitting on the foot ofFIGS. 19 and 20 ; -
FIGS. 22 and 23 are perspective views respectively of a suspension structure and of a foot constituting a fifth variant of the invention; -
FIGS. 24 and 25 are perspective views respectively of a suspension structure and of a foot constituting a sixth variant of the invention; -
FIGS. 26 and 27 are perspective views respectively of a suspension structure and of a foot constituting a seventh variant of the invention; -
FIG. 28 is a section view on a vertical transverse plane showing a second embodiment of a suspension device of the invention; -
FIG. 29 is a perspective view of the suspension structure of theFIG. 28 device; -
FIG. 30 is a perspective view of the foot of theFIG. 28 device; -
FIG. 31 is a perspective view of the top plate of theFIG. 28 device; -
FIG. 32 is a section through a third embodiment of the invention; -
FIG. 33 is a perspective view of a cap suitable for the first embodiment of the invention as shown in FIGS. 1 to 10: -
FIG. 34 is a section view on a vertical transverse plane through an eighth variant of the first embodiment of the invention; -
FIGS. 35 and 36 are perspective views respectively showing the bottom and top faces of the foot of theFIG. 34 variant; -
FIGS. 37 and 38 are perspective views respectively showing the bottom and top faces of the suspension structure of theFIG. 34 device; -
FIG. 39 is a side view of the inside face of a slat support; and -
FIG. 40 is a perspective view of a slat support. - FIGS. 1 to 10 show an
individual suspension device 1 of a multi-element base, for a seat or a bed for example, constituting a preferred embodiment of the invention. Thesuspension device 1 is for fixing to a slat of a support platform (not shown in the figures), and it essentially comprises three elements: afoot 2 for fixing to a slat, asuspension structure 3 mounted on thefoot 2, and atop plate 4 carried by thesuspension structure 3. - The
plate 4 serves as a support for a padding element, e.g. a mattress which is not shown in the drawings. Thesuspension device 1 can also include astiffening member 5 which enables the stiffness of thesuspension device 1 to be modified depending on its position within the base. The base comprises a plurality of suspension devices disposed in juxtaposed rows and columns. - The
foot 2 which is shown in detail inFIGS. 3 and 4 is made of a suitable rigid synthetic material such as polypropylene or polyamide, by molding, or else it is made of metal. It has acentral orifice 6 enabling it to be fixed to a slat by means of a screw, and on itsbottom face 2 a it has astud 7 for being received in a hole formed in the slat, so as to prevent thefoot 2 from turning after it has been fixed to the slat. Thefoot 2 also includes, on itstop face 2 b, twolateral tongues hole 9 located above thestud 7. Thetongues suspension structure 3, and thehole 9 serves to prevent thesuspension structure 3 from moving, in particular from turning after it has been mounted, as explained below. - The
suspension structure 3 shown in detail inFIGS. 5 and 6 is circularly symmetrical about a vertical axis X. It is made of a flexible synthetic material of the thermoplastic elastomer (TPE) type or a vulcanized rubber. The hardnesses of the materials are adapted to the loads that are to be supported. These hardnesses lie preferably in the range 40 on the Shore A scale to 70 on the Shore D scale. Thesuspension structure 3 is in the form of a sphere having threesectors lateral openings sectors lateral openings - The
sectors head 12 for theplate 4 situated in the top zone of thesuspension structure 3 to a bottom 13 situated in its bottom zone. The bottom 13 is generally plane and has athick zone 14 on its top face extending between thesector 10 a and theopposite opening 11 a. Atongue 15 is cut out by means of a U-shaped slot in thethick zone 14. Astud 16 is formed on the bottom face of thetongue 15. The width of thethick zone 14 is equal to the distance between the twotongues foot 2. The thickness of the bottom 13 outside thethick zone 14 is equal to the distance between thetongues foot 2 and thetop race 2 b of said foot. To mount thesuspension structure 3 on thefoot 2, theopenings tongues tongues tongues thick zone 14. - To enable the
stud 16 of the bottom 13 to rise onto thetop face 2 a of thefoot 2, a vertical force is applied to its end. Once the bottom 13 is fully engaged on thefoot 2, thestud 16 moves down again on being received in thehole 9 of thebase 2. Thesuspension structure 3 is then prevented from being pulled away by thetongues stud 16 received in thehole 9. The positioning of thestud 16 is naturally determined as a function of the position of thehole 9 relative to the axis X. - The
head 12 of thesuspension structure 17 is in the form of a neck having a throughorifice 17 on the axis X. Thehead 12 is designed to be received in acentral orifice 18 formed in thetop plate 4. The peripheral wall of thehead 12 is generally cylindrical and it terminates at the top end of thesuspension structure 3 to form two radially oppositeflange portions axial ribs 20 are formed on the peripheral wall of thehead 12 beneath each of theflange portions head 12 is connected to thesectors annular shoulder 21 serving as a support for thetop plate 4. - The
top plate 4 which is shown in detail inFIGS. 7 and 8 is generally rectangular or square in shape. It could equally well have any other geometrical shape. The essential point is that the shapes of the top plates fitted to a base, for example, should be complementary and suitable for associating with one another. Theplate 4 can be made of any kind of material, in particular of a thermoplastic material, wood, or in a multi-component laminate. It can be covered in cloth for reasons of appearance. It preferably has a plurality of slots or openings enabling air to pass through the padding element that it supports. Itscentral orifice 18 matches the dimensions of the fixinghead 12 and itsflange portions central orifice 18 has diametricallyopposite projections 22 which slide between the ends of theflange portions plate 4 is being put into the fixinghead 12. Eachprojection 22 has agroove 23 for co-operating with arib 20 after theplate 4 has been turned through one-fourth of a turn about the axis X. The axial and circumferential dimensions of theprojections 22 are such that after being turned through one-fourth of a turn about the axis X, theprojections 22 are received under theflange portions grooves 23 co-operate with theribs 20. This type of fastening is known, is referred to as a “bayonet” fastening, and requires no further explanation. After being put into place, thetop plate 4 is prevented from moving relative to thesuspension structure 3, both axially and in rotation. -
FIGS. 9 and 10 are detail views of a one-piece stiffening member 5 made by molding a material similar to the material used for making thesuspension structure 3. This stiffeningmember 5 is inserted into thesuspension structure 3 on its axis X via theorifice 17 in thehead 12 for fixing thetop plate 4. At its top end, this member comprises aplug 24 which closes theorifice 17. Theplug 24 has means enabling it to be fixed in theorifice 17, for example by turning the stiffeningmember 5 relative to thesuspension structure 3 during assembly. The stiffeningmember 5 is interposed between the bottom 13 and thehead 12 for fixing thetop plate 4. The stiffeningmember 5 serves to make the suspension harder in those zones of the base where loads are assumed to be greater. When the stiffeningmember 5 is not required, theorifice 17 of the fixinghead 12 is closed by acap 90, shown inFIG. 33 . - FIGS. 11 to 13 show a first variant of the above-described suspension device. The bottom 13 of the
suspension structure 3 is of uniform thickness and it presents agroove 30 facing thelateral opening 11 a which serves to guide a middle wall connecting atongue 31 formed on thetop face 2 b of thefoot 2 to saidfoot 2. On itsbottom face 2 a, thefoot 2 also has atenon 32 for quick fastening to a slat, and twolateral hooks top face 2 b the foot has aclip device 34 facing the free end of thetongue 31 which serves to prevent thesuspension structure 3 from moving relative to thefoot 2 after assembly. Thehead 12 for fixing thetop plate 4 is solid and at its periphery it has a plurality ofhousings 35 into which resilient fingers formed in the central orifice of thetop plate 4 are clipped, as described in the Applicants' French patent application FR 98/00187, and which can be seen in thetop plate 4 shown inFIG. 31 . - FIGS. 14 to 16 show a second variant of the invention. The
foot 2 has acentral orifice 6 for receiving a screw for fixing it to a slat, and astud 7 which projects from itsbottom face 2 a for preventing it from turning on the slat. Thefoot 2 can also have a plurality ofstuds 7 in alignment or a rib on itsbottom face 2 a so as to enable it to be docked blind in a groove formed in the slat so as to enable thefoot 2 to be installed more accurately and more quickly on the platform that defines the support surface. Thesuspension structure 3 is fixed on thefoot 2 by means of a bayonet fastening. For this purpose, thetop face 2 b of thefoot 2 has threecurvilinear hooks 40 a, 40 b, 40 c facing towards the axis of thefoot 2, and the bottom 13 presents threehooks hooks 40 a, 40 b, 40 c when the bottom is turned about its own axis X, then coinciding with the axis of thefoot 2.Ribs 42 formed on top of thehooks grooves 43 formed in thehooks 40 a, 40 b, 40 c, respectively, so as to prevent thesuspension structure 3 from turning relative to thefoot 2 once assembled therewith. As can be seen in FIGS. 14 to 16, thehead 12 for fixing thetop plate 4 is similar to that shown inFIGS. 11 and 12 , however it could equally well be similar to that shown inFIGS. 2 and 6 . -
FIGS. 17 and 18 show a third variant of the invention. On its top face, thefoot 2 has twoopposite hooks 44 a and 44 b that are directed radially outwards and that engage the nearest walls of arectangular opening 45 formed in the center of the bottom 13 of thesuspension structure 3 and dimensioned so as to allow thehooks 44 a and 44 b to pass through. On its top face, thefoot 2 also has twostuds suspension structure 3 on thefoot 2 after being turned through one-fourth of a turn. - In a fourth variant of the invention shown in FIGS. 19 to 21, the means for connecting together the
suspension structure 3 and thefoot 2 comprise a slideway of dovetail shape. For this purpose, the bottom 13 of thesuspension structure 3 has arib 50 on its bottom face, which rib is of dovetail section and extends from the axis X to the edge of the bottom 13, and is suitable for being slidably inserted into agroove 51 likewise of dovetail section formed in thetop face 2 b of thefoot 2. Thefoot 2 also presents twoparallel walls bottom face 2 a suitable for being placed on either side of a slat, and acentral stud 53 which is received in a hole formed in the slat. -
FIGS. 22 and 23 show a fifth variant of the invention. The bottom 13 of thesuspension structure 3 has acentral hole 54 in which a half-ball 55 formed on thetop face 2 b of thefoot 2 can be clipped. Atenon 56 is formed on the bottom face of the bottom 13. Thistenon 56 is received in amortise 57 formed in thetop face 2 b of thefoot 2, and serves to prevent thesuspension structure 3 from turning relative to thefoot 2. Thefoot 2 also hasside walls stud 53 as in the fourth variant, enabling it to be assembled on a slat and prevented from turning relative thereto. - In a sixth variant of the invention shown in
FIGS. 24 and 25 , thefoot 2 has acentral orifice 6 in itstop face 2 b enabling it to be fixed to a slat by means of a screw. This central orifice is surrounded by arectangular structure 60 which is received in arectangular opening 61 formed in the center of the bottom 13. Therectangular structure 60 is fitted withresilient tongues rectangular opening 61, as can be seen inFIG. 24 . -
FIGS. 26 and 27 show a seventh variant of the invention. The bottom face of the bottom 13 presents acentral ball 63 which can be slid along aradial groove 64 formed in thetop face 2 b of thefoot 2. Other means (not shown inFIG. 27 ) serve to prevent thesuspension structure 3 from turning relative to thefoot 2 after being assembled thereto. - FIGS. 28 to 31 show a second embodiment of the invention. This
suspension device 1 likewise comprises afoot 2 as shown inFIG. 30 , asuspension structure 3 of spherical shape as shown inFIG. 29 , and a top plate of square shape as shown inFIG. 31 . Thesuspension structure 3 presents ahead 12 for fixing thetop plate 4, which head has a cylindrical wall terminated by anannular flange 70 for retainingresilient fingers 71 provided on the inside wall of thecentral orifice 18 in thetop plate 4. The inside wall of thisorifice 18 also hasnotches 72 suitable for being placed astride oppositeradial ribs 73 a and 73 b formed in the top portion of the sphere at the bottom of thehead 12 so as to prevent thetop plate 4 turning about the axis X relative to thesuspension structure 3 after they have been assembled together. - In its bottom hemisphere, the
suspension structure 3 has threesectors slots suspension structure 3 does not have abottom member 13 in its bottom zone. The bottom ends of thesectors foot 2 hasside walls tenon 54 for fixing it to the slat, while on itstop face 2 b it has an upwardly flaredneck 75 made up of three elements that are regularly spaced apart around the axis of thefoot 2, each presenting an upwardly-extendingrib 76 on its outside face of circumferential size matching the width of aslot sectors suspension structure 3 over the neck. 75 so that theribs 76 are received in theslots -
FIG. 32 shows a third embodiment of the invention. In this case thefoot 2 and the suspension structure are made as a single piece. Thefoot 2 presents twotenons bottom face 2 a enabling it to be fastened quickly in holes formed in a slat, and optionally anabutment 81 which bears against a side face of the slat. -
FIG. 33 shows acap 90 having twotabs flange portions head 12 and theprojections 22 of thetop plate 4 in the first embodiment of the invention as described above after thetop plate 4 has been turned through one-fourth of a turn and non-return snap-fastening has taken place. Thecap 90 can be made of overmolded cloth or as a piece of plastics material worked by thermocompression. It can carry attractive markings or decoration. - FIGS. 34 to 38 show an eighth variant of the suspension device as described with reference to FIGS. 1 to 10. The
foot 2 differs from that shown inFIGS. 3 and 4 by the fact that it has anotch 100 in its periphery extending between the free ends of thelateral tongues bottom face 2 a, extending along thenotch 100, it also has aflange 101 situated above the support surface of the slat. Thetop face 2 b of thefoot 2 does not have thehole 9 shown inFIG. 4 . Thistop face 2 b presents portions ofextra thickness lateral tongues - The
suspension structure 3 fitted onto thefoot 2 and shown in detail inFIGS. 37 and 38 has a fixedzone 14 on the top face of the bottom 13 like thesuspension structure 3 shown inFIGS. 5 and 6 , which thick zone is located between thelateral tongues suspension structure 3 has been mounted on thefoot 2, and on the bottom face of the bottom 13 it hasparallel ribs portions top face 2 b of the foot, once thesuspension structure 3 has been mounted on thefoot 2. Theribs thick zone 14 and they are parallel to the side edges of saidthick zone 14. Beneath the bottom face of the bottom 13, and in register with thelateral opening 11 a, thesuspension structure 3 also presents ahook 104 which engages in thenotch 100 and whose end co-operates with theflange 101 to lock thesuspension structure 3 on thefoot 2. Thesuspension structure 3 is similar to that shown inFIGS. 5 and 6 concerning itssectors lateral openings head 12 for fixing atop plate 4. -
FIGS. 39 and 40 show asupport 110 for one end of a slat of a base, the slat being represented by dashed lines.Suspension devices 1 as described above are mounted on such slats, being placed side by side. Thesupport 110 has avertical wall 111 for placing against the inside face of a long side member and for being fixed thereto by screws passing throughorifices wall 111, or by tenons formed on saidvertical wall 111, or by a hooking angle member resting on the top face of the long side member. Acradle 113 extends horizontally from the bottom region of thevertical wall 111. Thecradle 113 presents twoend zones cradle 113 carries aresilient tongue 115 which carries one end of a slat. At the end of eachcurved zone side lip 116 which bears against a corresponding flank of the slat, and an upside-down U-shapedresilient element 117 whosefree end 118 bears against the top face of a slat. - The end of a slat is inserted from above into the space defined by the
resilient tongue 115 and the ends of thelateral lips 116 and theresilient elements 117. - The
lateral lips 116 clamp against the flanks of the slat, thus accommodating variations in manufacturing dimensions. Theresilient elements 117 serve to prevent the slats from moving upwards, while theresilient tongue 115 compensates for variations in slat thickness and also serves to damp a set ofsuspension devices 1 fixed on the slat. - In the various embodiments of the invention as described above, the
top plate 4 is in the form of a quadrangle and it is symmetrical about longitudinal and transverse planes containing the axis X. Clearly, thetop plate 4 fitted tosuspension devices 1 located at the edges of a base can carrytop plates 4 of slightly different shape. In all cases, the systems for fixing theplate 4 to thehead 12 of thesuspension structure 3 enable theplate 4 to be held stationary relative to thestructure 3 when subjected to traction along the axis X and when subjected to twisting about the axis X. The same applies to the systems for fixing thesuspension structure 3 to thefoot 2 and for fixing thefoot 2 to a slat of the support platform.
Claims (23)
1-22. (canceled)
23. An individual suspension device for a bed or seat base of the multi-element type, the device being for interposing between a platform determining a support surface and a padding element such as a mattress, and comprising a foot for fixing to an element of the platform, a suspension structure fixed to the foot, and a top plate carried by the suspension structure and serving as a support for the padding element, said suspension structure being circularly symmetrical about a vertical axis,
wherein the suspension structure is in the form of a one-piece hollow sphere comprising a plurality of sectors separated from one another by lateral openings and made of a flexible synthetic material or a vulcanized rubber of hardness lying in the range 40 on the Shore A scale to 70 on the Shore D scale, and
wherein the sectors are free of internal stress when the suspension structure is motionless and inactive.
24. A device according to claim 23 , wherein the foot has means for preventing it from turning after it has been fixed to the platform element.
25. A device according to claim 23 , wherein the suspension structure and the top plate have co-operating means for connecting them together in traction and in rotation about the axis of symmetry of said suspension structure.
26. A device according to claim 25 , wherein the connection between the suspension structure and the top plate is provided by a bayonet system.
27. A device according to claim 25 , wherein the suspension structure has a head at its top end for fixing the top plate which head is received in an orifice formed in the top plate.
28. A device according to claim 27 , wherein the fixing head has a through orifice formed on the axis of symmetry of the suspension structure.
29. A device according to claim 25 , wherein the foot and the suspension structure are made as a single piece.
30. A device according to claim 23 , wherein the suspension structure and the foot include co-operating means for connecting them together in traction and in rotation about the axis of symmetry of said suspension structure.
31. A device according to claim 30 , wherein the suspension structure is in the form of a sphere having a plurality of sectors separated by lateral openings that are regularly spaced apart around the axis of symmetry of said suspension structure.
32. A device according to claim 31 , wherein the sectors are connected to a bottom member situated in the bottom zone of the suspension structure.
33. A device according to claim 31 , wherein the co-operating means providing connection between the suspension structure and the foot are formed in the bottom and the top face of the foot.
34. A device according to claim 33 , wherein the co-operating means providing connection between the suspension structure and the foot comprise two lateral tongues forming clamps and formed on the top face of the foot, being designed to engage the bottom member, and a locking system for preventing the suspension structure from moving relative to the foot after assembly.
35. A device according to claim 34 , wherein the tongues are guided during assembly by a slideway system.
36. A device according to claim 34 , wherein the locking system comprises a hook co-operating with a flange.
37. A device according to claim 33 , wherein the co-operating means providing connection between the suspension structure and the foot comprise a bayonet system and a clip system.
38. A device according to claim 33 , wherein the co-operating means providing connection between the suspension structure and the foot comprise a groove and a rib of dovetail shape.
39. A device according to claim 33 , wherein the co-operating means providing connection between the suspension structure and the foot comprise a ball formed on one of said pieces and clipping in a housing formed in the other one of said pieces, and a tenon-and-mortise system for preventing the two pieces from turning relative to each other after the ball has been clipped into place.
40. A device according to claim 33 , wherein the co-operating means providing connection between the suspension structure and the foot comprise a ball formed on one of said pieces and suitable for sliding in a groove formed in the other one of said pieces.
41. A device according to claim 32 , wherein the sectors have free bottom ends capable of being splayed apart radially so as to be placed around a flared neck formed on the top face of the foot, the neck presenting actually-extending outwardly-projecting ribs which are received in the lateral openings of the sphere after assembly.
42. A device according to claim 23 , wherein the padding element is a mattress.
43. A support for the end of a base slat having a plurality of devices according to claim 23 mounted thereon, the support comprising a vertical wall for fixing against the inside wall of a long side of said base, a cradle extending horizontally from the bottom region of said wall and terminating in two upwardly-curved lateral zones, a resilient tongue supported by the middle zone of said cradle for supporting the end of said slat, a resilient lateral lip provided at the end of each lateral zone to bear against a respective flank of said slat, and a resilient element in the form of an upside-down U-shape whose free end is to come into abutment against the top face of said slat.
44. A method for producing an individual suspension device for a bed or seat base of the multi-element type, the device being for interposing between a platform determining a support surface and a padding element such as a mattress, and comprising a foot for fixing to an element of the platform, a suspension structure fixed to the foot, and a top plate carried by the suspension structure and serving as a support for the padding element, said suspension structure being circularly symmetrical about a vertical axis,
wherein, the suspension structure is molded in the form of a one-piece hollow sphere comprising a plurality of sectors separated from one another by lateral openings and made of a flexible synthetic material or a vulcanized rubber of hardness lying in the range 40 on the Shore A scale to 70 on the Shore D scale, and
wherein the sectors are resiliently biased towards expansion only when the suspension device is compressed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US11/257,976 US20060033250A1 (en) | 2001-05-02 | 2005-10-25 | Suspension device for a bed or seat base of the multi-element type |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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FR0105861 | 2001-05-02 | ||
FR0105861A FR2824246A1 (en) | 2001-05-02 | 2001-05-02 | MULTI-ELEMENT-TYPE SUSPENSION SUSPENSION DEVICE |
US10/133,663 US6994333B2 (en) | 2001-05-02 | 2002-04-26 | Suspension device for a bed or seat base of the multielement type |
US11/257,976 US20060033250A1 (en) | 2001-05-02 | 2005-10-25 | Suspension device for a bed or seat base of the multi-element type |
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US10/133,663 Division US6994333B2 (en) | 2001-05-02 | 2002-04-26 | Suspension device for a bed or seat base of the multielement type |
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US11/257,976 Abandoned US20060033250A1 (en) | 2001-05-02 | 2005-10-25 | Suspension device for a bed or seat base of the multi-element type |
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US10/133,663 Expired - Fee Related US6994333B2 (en) | 2001-05-02 | 2002-04-26 | Suspension device for a bed or seat base of the multielement type |
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WO2001015572A1 (en) * | 1999-09-01 | 2001-03-08 | Siegbert Hartmann | Elastic body |
DE20001616U1 (en) * | 2000-01-31 | 2001-03-08 | Froli Kunststoffwerk Fromme H | Bearing element for seating or lying areas |
-
2001
- 2001-05-02 FR FR0105861A patent/FR2824246A1/en not_active Withdrawn
-
2002
- 2002-04-25 ES ES02291047T patent/ES2277990T3/en not_active Expired - Lifetime
- 2002-04-25 AT AT02291047T patent/ATE347294T1/en not_active IP Right Cessation
- 2002-04-25 EP EP02291047A patent/EP1269894B1/en not_active Expired - Lifetime
- 2002-04-25 DE DE60216540T patent/DE60216540T2/en not_active Expired - Lifetime
- 2002-04-26 US US10/133,663 patent/US6994333B2/en not_active Expired - Fee Related
-
2005
- 2005-10-25 US US11/257,976 patent/US20060033250A1/en not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US122111A (en) * | 1871-12-26 | Improvement in springs for upholstery purposes | ||
US124436A (en) * | 1872-03-12 | Improvement in spring bed-bottoms | ||
US5426799A (en) * | 1989-06-08 | 1995-06-27 | Superba S.A. | Mattress system |
US5149066A (en) * | 1991-02-11 | 1992-09-22 | Aeroflex International Incorporated | Isolator with improved symmetrical response to shock and vibration forces |
US5632473A (en) * | 1992-10-01 | 1997-05-27 | Dias Magalh+E,Otl A+Ee Es Queiroz; Jo+E,Otl A+Ee O | Elastic spring and spring support for mattress, chair or upholstery |
US5588165A (en) * | 1993-11-10 | 1996-12-31 | Senne Lizenz & Produkte Gmbh | Cushioning assembly having plastic springs for supporting a pad |
US6477727B1 (en) * | 1997-07-18 | 2002-11-12 | Froli Kunststoffwerk Heinrich Fromme Ohg | Bearing element for upholstery support for a seat or bed system |
US6427990B1 (en) * | 1999-09-01 | 2002-08-06 | Siegbert Hartmann | Spring body |
US6435490B1 (en) * | 2001-02-08 | 2002-08-20 | Lockheed Martin Corporation | Dual hemisphere elastomer mount |
US6533258B2 (en) * | 2001-02-08 | 2003-03-18 | Lockheed Martin Corporation | Barrel elastomer mount |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105873817A (en) * | 2013-10-21 | 2016-08-17 | 塞莱皇家股份公司 | Support element for the human body |
US20160257363A1 (en) * | 2013-10-21 | 2016-09-08 | Selle Royal S.P.A. | Support Element for the Human Body |
US20160257364A1 (en) * | 2013-10-21 | 2016-09-08 | Selle Royal S.P.A. | Support Element for the Human Body |
CN106061826A (en) * | 2013-10-21 | 2016-10-26 | 塞莱皇家股份公司 | Support element for the human body |
US9957009B2 (en) * | 2013-10-21 | 2018-05-01 | Selle Royal S.P.A. | Support element for the human body |
TWI631037B (en) * | 2013-10-21 | 2018-08-01 | 莎莉皇家S P A 公司 | Support element for the human body |
TWI631038B (en) * | 2013-10-21 | 2018-08-01 | 莎莉皇家S P A 公司 | Support element for the human body |
US10183715B2 (en) * | 2013-10-21 | 2019-01-22 | Selle Royal S.P.A. | Support element for the human body |
CN106604860A (en) * | 2014-10-20 | 2017-04-26 | 塞莱皇家股份公司 | Modular support element for human body |
CN106604860B (en) * | 2014-10-20 | 2020-08-07 | 塞莱皇家股份公司 | Modular support element for the human body |
Also Published As
Publication number | Publication date |
---|---|
FR2824246A1 (en) | 2002-11-08 |
ES2277990T3 (en) | 2007-08-01 |
US20020163114A1 (en) | 2002-11-07 |
EP1269894B1 (en) | 2006-12-06 |
EP1269894A1 (en) | 2003-01-02 |
ATE347294T1 (en) | 2006-12-15 |
US6994333B2 (en) | 2006-02-07 |
DE60216540D1 (en) | 2007-01-18 |
DE60216540T2 (en) | 2007-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |