The present invention relates to a method for manufacturing furniture such as tables, chairs, beds, etc.
The invention also relates to furniture obtained with this method.
A method is known, described in EP2346374, for the production of furniture such as sofas, beds, chairs, etc., starting from a block of expanded polystyrene material (EPS), which is cut and then milled on machine tools to obtain a blank of said material, having a desired shape and corresponding to that of the piece of furniture or of a part of the piece of furniture to be made.
The blank, once made, is then coated on by spraying its surface with polymeric material, in particular, a polyurethane resin, obtaining a furniture component having an EPS core and a rigid external cover of a few millimetres thick. The coated furniture component is very light and rigid, and replaces the wooden or metal frame of classic furniture components. The component is then upholstered in fabric, rubber or leather, or padded, possibly equipped with accessories, to obtain the final piece of furniture.
As described in EP2346374, the strength of the composite material of the furniture component is much higher than the basic strength of the uncoated blank, which is of plain expanded polystyrene. In fact, the hardening of the polymeric material creates a particularly hard and resistant shell that collaborates with the core formed by the blank. The addition of the upholstery and accessories to the component allows to obtain furniture of comparable strength with the existing wooden ones, even if of considerably reduced weight. In addition to the reduction of production costs and weights, the component thus created has a considerable advantage in the freedom of design by the creators of new and fancy shapes, which would be particularly complex to make of wood or metal.
The technology described above is particularly suitable for monolithic furniture, while it has limitations where furniture components, at least one of which is made in the manner described above, must be connected together. In fact, while wood and metal can be drilled to insert screws or connecting hardware, the components made with a coated polystyrene core, while being easily drilled, do not offer much resistance to screws and can bear with great difficulty connecting furniture hardware.
There are known tables with the function of a school desk that include an EPS core sandwiched between two rigid panels, as described in CN201094456Y. Threaded bushings are provided to support the table legs by the rigid panels. A polyurethane foam strip is applied around the perimeter with a shockproof function for children.
In the following description, the term furniture means any piece of furniture for furnishing homes, offices, schools, boats, etc., while the term seat means any piece of furniture designed to be able to sit, such as a chair, armchair, sofa, stool, rocking chair, bench, deck chair, etc.
It is an object of the present invention to provide a method for the production of a piece of furniture such as a seat, a bed, a table, etc., which allows to produce furniture components, having a core of expanded polystyrene coated with polymeric material, which can be easily connected to each other.
It is another object of the present invention to provide a method for the production of a piece of furniture such as a seat, a bed, a table, which allows to make components with a core of expanded polystyrene coated with polymeric material, which can be connected to each other in a resistant and stable way.
These and other objects are achieved by a method for producing a piece of furniture such as a seat, a bed, a table, the piece of furniture comprising at least one furniture component, the method comprising the steps of:
In this way, the step of coating the blank and the insert by at least one coating layer of polyurethane material, making sure that the coating layer of polyurethane resin covers both the blank and the insert, creates a rigid “bridge” shell that connects them solidly along a junction line between them, allowing the insert to be solidly and stably integral to the blank. The connection portion, by engaging with the expanded polystyrene blank, allows an extremely safe anchorage for other furniture components, and is able to receive loads distributed by the furniture component, for example the weight of a person sitting on a seat or laying on a bed, or the weight of an object on a table, as well as concentrated loads, such as a binding reaction of a table foot or an armchair leg that transmits a load to the floor, or the concentrated load of a staple or of a riveting of upholstery or other lining elements of leather or fabric.
The insert, made of wood or other rigid material, can be a simple board, or it can be a reinforcing rib, a frame, or even a combination of several insert portions. The insert can be made by milling from a blank a corresponding shape of the interface surface, so as to copy the shape of the interface surface, and so that it can be solidarized to it, preferably by gluing it up to stably joining the interface surface and the engagement portion over the entire contact region between them.
The connection portion that the insert provides can be a simple surface for applying an external connecting element, such as a self-tapping screw, a nail, a staple. Alternatively, the connection portion may comprise a furniture hardware, such as a nut, a bush, a stud, a barrel joint, an eccentric joint, etc.
In particular, the connection portion can be a threaded bushing, like an eccentric connector also called “spider”, which is inserted from the side of the engagement portion before the insert is fixed, for example by gluing, to the interface surface, and then a nut screw emerges from the side of the connection portion, via a through hole made in the insert between the engagement portion and the connection portion.
To allow easy access to the connection portion, the polyurethane coating resin layer can be removed, or preferably not applied. In this case, it is sufficient to cover the connection portion at the time of application of the polyurethane coating resin layer, so that the latter, preferably applied by spraying or spreading, does not cover the connection portion or penetrate it.
The covering of the connection portion to prevent it from being covered with the polyurethane material can be done manually, for example with a portion of tape or a removable cap or mask. In the case of robotic spraying, the covering of the connection portion can be done automatically, with masks positioned by the spraying robot itself or by a robot cooperating concurrently with the spraying.
In a further possible embodiment, the furniture component is a first furniture component, and a second furniture component is provided, the further steps being provided of: making the second furniture component, so that the second furniture component comprises a second insert made of rigid material, the second insert having a second connection portion configured to be connected with the connection portion of the first furniture component. Then, the solid connection of the first furniture component and the second furniture component is achieved by integrally joining the insert of the first furniture component and the second insert through the connection portion of the first furniture component and the second connection portion.
In a further possible embodiment, the blank is a first blank, the method further comprising the steps of: making a second blank of expanded polystyrene with a density between 15 and 25 kg/mc, the second blank being configured to act as a core for the second furniture component; realization in the second blank of a second interface surface; making the second insert of rigid material having an engagement portion configured to engage with the second interface surface and a connection portion opposite the engagement portion; insertion of the insert into the second interface surface so that the engagement portion is engaged with the second interface surface and the connection portion faces away from the second blank; coating the second blank and on the second insert by at least one coating layer of polyurethane material, so that the coating layer entirely covers the blank and the second insert with the exception of at least one part of the second connection portion.
In a possible embodiment of the method, the furniture component is a seat. In this case, the blank is a EPS blank comprising a backrest portion and a seat portion. In this case, the interface surface is made by making a recess or a coupling surface in the seating portion. The insert can have the form of a board element and a portion of its edge embodies the engagement portion of the insert, while the connection portion is embodied by the lower face of the table, to which a second furniture component, which can comprise a support of the seat to the floor, in particular, a frame having legs or a base, can be fixed, by means of furniture hardware. Therefore, the coating layer of polyurethane material completely covers the blank at the seat and the board, thus reinforcing the solidarity between them, with the exception of connection portions of the lower face of the insert.
In particular embodiments, the engagement portion is selected among: the whole edge of the board; one part of the edge of the board, while the other part of the edge forms a free edge of the seat.
In another possible embodiment, in which the furniture component is a backrest of a seat, the EPS blank has the shape of a backrest, without a seat. In this case, the interface surface is formed by a lower edge of the backrest blank, the insert is an arched element having a shape that copies the lower edge, and the engagement portion is the upper edge of the element arc, while the connection portion is embodied by the lower face of the arched element. To the latter, therefore, a second furniture component can be fixed, again by means of furniture hardware, which can comprise an intermediate board to which legs can then be fixed or a base can be fixed for supporting the seat to the floor, or directly a frame having legs, or a base can be fixed.
The coating layer of polyurethane material entirely covers the backrest blank and the arched element, creating a rigid bridge along their joint area, and reinforcing the solidarity between them, with the exception of portions of the lower face which serve as connection.
In addition to the arched element, in a particular embodiment, at least one arched reinforcement can be provided that extends in a groove made in the backrest, internally or externally to the user back support area. The coating layer of polyurethane material completely covers the arched reinforcement, or the coating layer of polyurethane material covers the groove and acts as an adhesive between the arched reinforcement and the groove. This arched reinforcement, for example made of hardboard or other rigid or otherwise strong material and able to withstand concentrated loads, has the main function of acting as a tapping or anchoring area for upholstery for furniture or other aesthetic elements, made of leather or fabric.
In a possible embodiment, an arched bandage applied externally to the arched element is provided; in particular, reinforcing boards are provided substantially orthogonal to the arched element, possibly provided with bracing that engage with recesses made in the backrest blank.
In these embodiments, the arched shape is purely exemplary, and could also be a polygonal shape, or other curved-line or broken-line geometric shape, responsive to the structure of the furniture component.
In another possible embodiment, the furniture component is a backrest of a seat, the blank is an EPS blank with a backrest shape and the interface surface is formed by a lower edge of the backrest blank. However, the insert is not an arched element but a frame, having a perimeter portion that copies the lower edge, and the engagement portion is the perimeter portion of the frame. In this case, the polyurethane resin layer may not cover the entire insert, but may only partially cover the frame, both on the outer edge and adjacent to the perimeter portion, to create in these areas a rigid and tenacious connection bridge in the vicinity of the junction area between the board and the backrest blank. Alternatively, the coating layer of polyurethane material entirely covers the backrest blank and the frame, reinforcing the solidarity between them, with the exception of the connection portion. A connection portion can be embodied by the lower face of the frame, to which a second furniture component, which can comprise legs or a base for supporting the seat to the floor, can be fixed, by means of furniture hardware. The upper face of the frame can also be used to fasten furniture components, for example by means of strapping.
In a possible particular embodiment, ribs can be fixed to the frame which extend in grooves made in the backrest and which are also covered by the layer of polyurethane resin. Such ribs, made of wood or hardboard, can be used as additional connection portions for tapping upholstery or other leather or fabric lining.
In yet another possible embodiment, the furniture component is a seat with a base and the blank is an EPS blank with a seat-like shape with an integrated base, for example a monolithic seat formed by a backrest portion, a seat portion, any armrest portions, and a base portion. The entire blank can be made by single milling from EPS block or preformed blank. As an alternative to the monolithic solution, the blank can also be made of several semi-finished EPS components glued together.
In this embodiment, the interface surface is the lower face of the base portion, and the insert is a base reinforcement, or base board which has the engagement portion corresponding to an upper face of its own configured to mate with the lower face of the base portion. In this case, the polyurethane resin layer that covers the semi-finished seat with base also may cover part or all of the base reinforcement, or entirely covers only the side faces of the base reinforcement, or even a part of the lower face.
In a possible embodiment, the blank with base comprises a seat portion, and the interface surface is made by making a recess in the seat portion, and a further insert is provided in the form of a frame element and a portion of its edge embodies the engagement portion of the insert.
In a possible embodiment, the frame element, entirely coated with polyurethane resin with the exception of connection portions, on the upper face, allows the anchoring of a second furniture component, in the form of a strapping board, anchored to the frame insert by means of furniture hardware.
Also in this embodiment, the seat blank with base can have the seat portion entirely made of EPS, i.e. the semi-finished monolithic block, or made of several semi-finished EPS components glued together.
In another possible embodiment, the furniture component is a table, or tea table, and the blank is a table-shaped EPS blank table top and legs, in particular, an inverted U-shaped table-like blank. The interface surface is formed by a lower edge of the legs and the insert is a shaped bar configured to copy the lower edge of each leg. The engagement portion is an upper face of the bar, and the polyurethane resin layer covers the bar at least partially adjacent to the lower edge, to create in these areas a rigid and tenacious connection bridge in the vicinity of the joint area between them.
In this embodiment, the connection portion is embodied by the lower face of the bar, to which a second furniture component can be fixed, by means of furniture hardware, for example a table foot having an aesthetic function, or a base element.
In a particular embodiment of the table or small table, a further interface surface is provided, made by making a recess in the table top in which a table top board element engages along its edge, and wherein the polyurethane resin layer covers the table-shaped blank and also partially or totally covers the board element. This table top board has the function of conferring a desired flatness to the table, compensating for any deformations due to shrinkage induced by the polyurethane resin.
In a possible embodiment in which the furniture component is a table, the blank can be a monolithic table in EPS, comprising both a table top and a central base. Even in this case, the entire blank can be made from a single milling from EPS block or preformed blank, or it can be made from multiple semi-finished EPS components glued together.
In this case, the interface surface can be a perimeter recess in the base and the insert is a base board with a central hole, and at least the upper edge of the base board embodies the engagement portion. The connection portion is the lower face of the base board to which a second furniture component can be fixed as a ballast, for example of metal, engaged in a further recess in the base and placed above a support board, which is connected to the base board by means of furniture hardware, previously inserted in the latter before coupling with the interface surface and the application of the polyurethane coating resin layer.
In a particular embodiment, a second connection portion can be made on the lower face of the support board, by means of furniture hardware, where support foot elements can be fixed.
In possible embodiments of the table, an upper interface surface in the table top can be made, and an upper reinforcing element selected from a stretcher made of rigid material or a board can be provided.
In this case, the application of an upper board on the upper reinforcing element and the application of a second layer of resin between the table top and the upper board can be provided.
Alternatively, or in addition, the application of a resin layer on the upper interface surface can be provided before applying the upper reinforcing element.
As a further possibility, the application can be provided of an upper board on the upper reinforcing element and the application of a polyurethane coating resin layer which covers the upper board and also all the monolithic table blank and insert. The upper board, in particular, can be perforated to allow the coating layer of polyurethane resin to penetrate it.
In a further possible embodiment, the furniture component is a chaise longue portion, the blank is a shaped monolithic blank and the interface surface is made on a lateral face of the shaped monolithic blank.
The insert can be a rigid profile also shaped so as to copy the shaped portion and so as to couple with the side face. Therefore, the engagement portion is embodied by the lateral edge of the rigid profile, while the connection portion is embodied both by the connecting face of the rigid profile opposite the lateral edge and by at least one of the free faces of the rigid profile.
This connection portion has a double function. The first is to connect a second furniture component formed by an identical shaped monolithic blank which shares the rigid profile. In this case, the polyurethane coating layer integrates the first and the second furniture component with the rigid profile. The second is that on at least one of the free faces of the rigid profile there are connection portions for other components and for fixing upholstery or other leather or fabric coverings.
In a particular embodiment of the chaise longue, the shaped monolithic blank can have opposite lower ends which each have a further insert, the edge of which embodies the engagement portion with the interface surfaces, embodied by the ends of the blank. In this case, the polyurethane coating layer integrates the insert with the ends.
The invention will be illustrated below with the description of some embodiments, given by way of non-limiting example, with reference to the attached drawings in which:
With reference to
As described in EP2346374, the description of which is to be considered incorporated by reference, the blank 11 can be obtained by milling or cutting from a block or from a molded blank, with a mechanical processing which can also be done in a robotic manner.
The blank 11, for simplicity of presentation, is schematically shown in
According to the invention, in the blank 11, an interface surface 12 is made (
The interface surface 12 can be a recess or a protuberance, or it can also be a reference surface such as a flattening to achieve a desired shape. For example, and for simplicity of presentation, the interface surface 12 is shown as a rectangular recess in
Still according to the invention, an insert 13 is made of rigid material such as wood, hard plastic, metal, laminate such as HPL. The rigid insert 13, as shown in
The connection portion 15 can be a simple surface for applying an external connecting element, such as a self-tapping screw, a nail, a tapping. Or it may comprise a fastener 15a for furniture, such as a nut bush, a stud, a barrel joint, an eccentric, etc.
As shown in
The bonding can be carried out in any known way, for example by means of glues or adhesives, for example specific adhesives of the known type for wood/polystyrene, hard plastic/polystyrene, metal/polystyrene, foils/polystyrene, etc.
This first solidarization is followed, according to the invention, by a second solidarization, shown schematically in
This coating can be done by spraying, manually or for example with a robot 31 symbolically indicated with an icon in
The covering can be made with the exception of at least one part 16 (
The covering of the connection portion 15 to prevent it from being coated with the polyurethane material can be done manually, for example with a portion of strip 16 or a removable cap or capsule. In the case of robotic spraying 31, the covering of the connection portion can also be done automatically, in a manner not shown, by masks positioned by the spraying robot itself or by a robot cooperating in conjunction with the spraying.
The sum of the above first and second solidarizations thus forms the furniture component 10 (
The connection portion 15 can be used to attach a leg or base of a seat or a table, or to connect two components both made with the method according to the invention, as well as to fix the furniture component to a support, or for resting the furniture on a floor or other support surface, etc.
As shown schematically in
The second furniture component 20 can also be made starting from a second blank 21 of expanded polystyrene with a density between 15 and 25 kg/mc, which acts as a core for the second furniture component 20, and has a second interface surface 22, with which a second insert 23 made of rigid material can engage, having a second engagement portion 24 configured to engage with the second interface surface 22 and a connection portion 25 opposite to the second engagement portion.
Also the blank 21 and the second insert 23 are then covered with at least one layer of coating layer 30 of polyurethane material, so that the coating layer 30 completely covers the blank 21 and the second insert 23 except of at least one part of the second connection portion 25. The two components 10 and 20, then, can be joined together through the inserts 15 and 25 respectively solidarized to them by means of the layer of polyurethane resin 30.
In the following description of specific embodiments of the method, specific examples of furniture such as chairs or tables are depicted and described, being it clear that such examples are purely exemplary ones.
With reference to
The rigid insert 13 can be a board element 43 of a shape corresponding to the recess 42, and a portion of its outline 44 embodies the engagement portion 14 of the rigid insert 13, while the connection portion 15 can be formed by the lower central part 45 of the board element 43 under the seat, to which a second furniture component can be fixed, not shown for simplicity. This second furniture component can be a frame having legs or forming a base, and can be fixed, by means of furniture hardware not shown, to the lower central part 45, which acts as a connection portion 15 with principles similar to that shown in
In particular, in
The contour 44 of the board element 43 can be glued with glue or other adhesives to the EPS of the edge 42, or simply forced therein. Subsequently, after having protected any threaded and connecting elements with the base, in a way not shown, it is completely covered together with the blank 41, forming the polyurethane resin layer 30 uniformly arranged to cover the blank and the any EPS/wood/metal connection areas. In this way, the board element 43, well integrated with the seated blank 41, allows the concentrated loads to be directly transferred to an underlying base.
This description of the manufacturing steps of the blank 41 and of the polyurethane resin layer 30 which also covers the insert 43, can be applied by a person skilled in the art to any piece of furniture made according to the invention, object of the present description or in any case made according to the present invention.
With reference to
In the embodiments of
In an alternative embodiment of a seat 40″, shown in
To allow a stable support of the board element 43, the seat 41a can have a lower support crosspiece 41e, also made of pieces starting from the EPS blank to obtain the blank 41. Also for this embodiment of
With reference to
As shown in
With reference to
In the particular embodiment of the backrest of
The interface surface 12 can be made by making recesses, for example grooves that extend along the lower edge 52 of the backrest blank 51, to facilitate the application and sealing of the glue that defines a first solidarization with the arched element 53. For this purpose, the rigid insert 13 having arch-shaped portion 53 has the engagement portion 14 corresponding to its own edge 54 which can be smooth or also grooved, which mates the interface surface 12 formed by the lower edge 52.
The connection portion 15 can be embodied by the lower face 55 of the arched insert 53, to which a second furniture component can be fixed, not shown for simplicity, and which can be an intermediate board to which then, legs or a base, or a frame having legs or forming a base, can be attached. Therefore, the second furniture component can be fixed, by means of furniture hardware, to the lower face 55 which acts as a connection portion 15 with principles similar to that shown in
In particular, in
As shown in
In
Therefore, the rigid insert 13, here formed by arched element 53, in addition to supporting the concentrated loads transmitted by connection with another piece of furniture, also allows to support the concentrated loads of fastening the upholstery by means of fastening elements 35 or the like. The aforementioned description of the application phases of the coating 37 and of an eventual elastic layer 36 can be applied by a person skilled in the art to any piece of furniture made according to the invention, object of the present description or in any case according to the present invention. Therefore, it is understood that this description of application of the coating applies, mutatis mutandis, to the other embodiments according to the invention
With reference to
In this embodiment at least one arched reinforcement 56 which runs in a groove 52′ made in the backrest can be provided. As shown in
In both cases of
As shown in
With reference to
In this embodiment, in particular, reinforcing boards 57 can be provided substantially orthogonal to the arched element 53, possibly provided with braces 57′ which are connected to parts of the engagement portion 12, which is embodied by recesses 52″ made in the backrest-shaped blank 51. In this way, the backrest 50 is able to support concentrated connection loads both at a face 55 of the arched element 53, and at the reinforcement boards 57, where further furniture components, such as legs, bases or seats, can be connected with spider hardware 15a or other furniture hardware.
Also in the alternative embodiment of the backrest of
In this embodiment, the rigid insert 13 can be a frame 53′ having a perimeter portion 54, while the engagement portion 14 can be the perimeter portion 54 of frame 53′. In particular, the EPS backrest-shaped blank 51 has the interface surface 12 formed by the lower edge 52 which copies the perimeter portion 54, on which it rests, and to which is glued so as to become integral with the frame 53′. The engagement portion 14 corresponding to the perimeter portion 54 can be smooth, or it can also be grooved to facilitate gluing.
The rigid insert 13 in the form of frame 53′ can be made of rigid material, for example wood or other structural material, and can be obtained by cutting and then milling from a blank containing it, also making grooves 55a for stapling and making through notches 55b to tie elastic straps and fix the fabric or leather.
The polyurethane resin layer 30 preferably does not cover the entire frame 53′ but it covers a part of it adjacent to the perimeter portion 54, so as to greatly strengthen its solidarity with the EPS backrest blank 51.
The connection portion 15 can be embodied by the lower face 55 of the frame insert 53′, to which a second furniture component can be fixed, with applicable structure similar to that shown in
In particular, in
As shown in
As shown in
In this embodiment variant, in addition to the frame 53′, ribs 58 can be fixed which extend in grooves 59 made in the backrest blank 51. The ribs 58 can also be covered by the polyurethane resin layer 30. Ribs 58 can be substantially vertical and made of wood. The grooves 59 can be deep so as to enclose ribs 58, which can be used to connect the backrest to other interfaces or to fix covering layers such as rubber, leather, fabric.
With reference to
With reference to
The base board 63 can comprise a connection portion 15 formed by a base face 65 which can contact directly with the floor by means of shaped foot elements 65a or can act as a connection for further foot elements which can be connected by spider hardware, screws, plates, etc., not shown. Furthermore, the base face 65 allows an upholstery 37 of leather or fabric to be fixed around it, in correspondence with folded flaps 37a.
As shown in
As shown in
In this embodiment the blank with base 61 comprises a seat portion 61a, and the interface surface 12 can be made by making a recess 62′ in the seat portion 61a, and a further rigid insert 13 can be provided having the form of a frame element 63′ and a portion of its edge 64′ embodies the engagement portion 14 of the rigid insert 13.
Also in this embodiment, in addition to what already described for
With reference to
In a further embodiment, shown in
In this embodiment, the rigid insert 13 can be a bar 73 shaped so as to copy the lower edge 72, while the engagement portion 14 that can be an upper face 74 of the bar 73. In this case, the polyurethane resin layer 30 covers the bar at least partially adjacent to the lower edge 72. The connection portion 15 can be embodied by the lower face 75 of the bar, to which a second furniture component, or foot elements, can be fixed, by means of furniture hardware 15a. Hence, the blank 71 can be placed on the bars 73 which may have grooves for fixing any covering fabric or leather.
In addition, a further interface surface 12′ can be provided, obtained by making a recess 72′ in the table top 71a in which a board element 73′ is fixed along one of its edges 74′. The polyurethane resin layer 30 covers the blank at table 71 and also partially or totally covers the board element 73′.
Board element 73′ can be made of wood and serves to support, together with the coating resin layer 30, the distributed and point loads that may arise during the use of the table. The upper board element 73′ can therefore be “incorporated” in the recess 72′ made by milling in the table-shaped EPS blank 71 and also incorporated under the coating resin layer 30.
With reference to
In this embodiment, the interface surface 12 can be a flat perimeter surface 82 or a perimeter recess under the base 81b and the rigid insert 13 can be embodied by a base board 83, while the engagement portion 14 can be the upper face of the base board 83, or at least a portion of the edge 84 of the base board 83.
The connection portion 15 can be embodied by the lower face 85 of the base board 83 to which a second furniture component 20 can be fixed, such as a ballast 88, for example of metal. In particular, the ballast 88 can be placed above a support board 88a and engageable in a further recess 89 in the base 81b. The base board 83 has the lower face 85 from which spider hardware, bushings or other furniture hardware can emerge, to connect, as a second furniture component 20, while the ballast 88 can be connected to the base board 83 by means of the support board 88a.
The polyurethane resin layer 30 which covers the blank 81 also covers the base board 83 laterally. The base board 83 had already been solidified with the blank 81 by means of glue before spraying with polyurethane 30, which therefore provides a further solidarization.
Furthermore, in this embodiment a second connection portion 88′ can be made on the lower face of the support board 88a for the connection, by means of furniture hardware, of foot elements, not shown.
In a possible embodiment, again with reference to
In a further embodiment, shown in
In this embodiment, an upper interface surface 82′ in the table top 81a, and an upper reinforcing element in the form of a board 86′ can be provided. In this case, the application of a coating 30″ of polyurethane resin on the upper interface surface 82′ can be provided before the application of the upper reinforcing board element 86′. Therefore, the application of the polyurethane coating resin layer 30 which covers the upper reinforcing element on the board 86′ and also the whole monolithic table-shaped blank 81 and laterally the insert 83 can be provided. In a possible variant, the upper board 86′ can be drilled with holes 86′a, to allow the polyurethane coating resin layer 30 to penetrate it for solidarization to the underlying resin layer 30″.
With reference to
With reference to
In a possible embodiment, the interface surface 12 can be a lateral face 92 of the shaped monolithic blank 91 and the rigid insert 13 can be a rigid profile 93 that copies the shaped portion 91 so as to couple with the lateral face 92. The engagement portion 14 can be the lateral edge 94 of the rigid profile 93 while the connection portion 15 can be the connecting face 95 of the rigid profile 93 opposite the lateral edge 94.
In the possible embodiment shown, in particular, a second furniture component 90′ provided that can be an identical shaped monolithic EPS blank 91′ which shares the rigid profile 93. The polyurethane coating layer 30 integrates the first and the second furniture component 90 and 90′ with rigid profile 93.
Furthermore, the chaise longue-shaped monolithic blank 91 can have lower ends 92′ which provide a further insert 93′ whose edge 94′ embodies the engagement portion 14 which engages with the end 91a, while the polyurethane coating layer 30 integrates the insert 93′ with the ends 92′.
The semi-finished monolithic shaped chaise longue 91 can be a milled EPS element while the inserts 93 and 93′ can be a longitudinal wooden board milled according to an identical shape and two opposite wooden base foot elements. The semi-finished monolithic shaped chaise longue 91 and 91′ and the inserts 93 and 93′ are glued together and then further solidarized with the polyurethane coating layer 30. The insert 93 has the function of stiffening the structure and balancing any “shrinkage” of the polyurethane coating layer 30 in the when curing. This allows creating monolithic blanks shaped like a chaise longue 91 and 91′ as milled parts made of EPS, i.e. two distinct parts avoiding undercuts, since the two blanks can be milled resting on one side.
Further foot elements not shown can be mounted using furniture fasteners on connecting faces 95′ of the inserts 93′, which support the concentrated loads of the foot elements and allow the fabric or leather 37 to be stapled as indicated in
The above description of embodiments of the invention is able to show the invention from the conceptual point of view so that others, using the known art, will be able to modify and/or adapt these forms in various applications specific embodiments without further research and without departing from the inventive concept and, therefore, it is understood that such adaptations and modifications will be considered as equivalent to the specific embodiments. The means and materials for carrying out the various functions described may be of various nature without thereby departing from the scope of the invention. It is understood that the expressions or terminology used have a purely descriptive purpose and, therefore, are not limiting.
Number | Date | Country | Kind |
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102020000021613 | Sep 2020 | IT | national |
Filing Document | Filing Date | Country | Kind |
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PCT/IB2021/058321 | 9/13/2021 | WO |