• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
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    • 专利摘要:
    "INDIVIDUALLY PACKED COIL SPRINGS WITH DAMPING CUSHIONS, AND PACKED SPRING MATTRESSES WITH SUCH PACKED COIL SPRINGS" The present invention relates to an individually bagged coil spring (2) for use in a bed or seat product , as well as a pocket spring mattress (1) that includes such pocket coil springs (2). The individually bagged coil spring (2) comprises: a coil spring (4) having an exhaust (41) and a lower end (42); a housing (31) forming a bag that houses said coil spring (2); and a cushion pad (5) located above said upper end (41) of the coil spring (2). The housing (31) thereby provides a first compartment (21) that houses the coil spring (4), and a second compartment (22) that houses the cushion pad (5), in which the first and second compartments (21, 22) are separated from each other.
    公开号:BR112015025693B1
    申请号:R112015025693-7
    申请日:2014-04-08
    公开日:2021-02-23
    发明作者:BENGT Häger；Robert Ahlqvist；Kenneth Edling；Jörgen THURESSON
    申请人:Carpe Diem Beds Of Sweden Ab；
    IPC主号:
    专利说明:

    TECHNICAL FIELD
    [001] The present invention relates to an individually pocketed coil spring, and a pocket spring mattress comprising such individually pocketed coil springs, for use in a mattress, cushions and other bed or seat products. BACKGROUND OF THE INVENTION
    [002] A common technique for manufacturing spring mattresses is the so-called bagging technique. This means that the springs are placed in bags, that is, the springs are individually surrounded by a coating material. In this way, the springs are relatively and individually resilient so that they can flex individually without affecting the adjacent springs and, therefore, increase comfort for the user because their weight will be more evenly distributed over the surface that receives the load.
    [003] A known form of packaged spring assembly comprises a plurality of rows of parallel springs joined together by gluing, stapling, welding or the like, thereby securing the rows of springs together. Each row of springs comprises a strip of fabric wrapped around a plurality of helical springs which are aligned in a row. The springs can extend in the direction of the width or length of the mattress.
    [004] To create such a row of springs a plurality of coil springs are aligned in a row and a strip of fabric is wrapped around the row of coil springs aligned to create two layers, one on each side of the row of springs. The edges of the fabric band are joined together with a longitudinal fastening line that extends longitudinally along the row of springs. The outermost edges of the fabric band are joined together with the outermost transversal lines of attachment to prevent the outermost springs from leaving the fabric band. Between the adjacent coil springs, the transverse fastening lines generally extend parallel to the geometric axis of the coil springs, separating the strip of fabric into individual bags, each bag containing a coil spring.
    [005] However, lying directly on the mattress with pocket springs is usually not comfortable, and to provide good sleep and comfort at rest, it is usually required to add a layer of padding or similar on the top of the mattress. Such a filling layer is often mounted together with the pocket spring mattress, to form a coated padded mattress. Alternatively, a separate filling mattress can be loosely extended over the top of the bagged spring mattress. However, a drawback of such an additional top layer is that it reduces the individual resilience of the bag units, and provides not so good distribution.
    [006] For this purpose, it was proposed in EP1 330 171 to connect foam or other cushioning or padding materials to the top of each helical spring, and to house each foam / padding unit and helical spring, inside each individual bag. This provides an additional padding layer that maintains the inherent individual resilience of the pocket spring loaded mattress.
    [007] However, a drawback of the previously proposed mattress is that the connection of the foam / padding with the coil spring is relatively complicated and expensive to reach. In addition, there is a great risk that the foam / padding will be deformed or disconnected, and, for example, pushed into helical spring convolutions. This will significantly deteriorate both the appearance and the comfort of the mattress.
    [008] Therefore, individual helical pocket springs and a mattress with pocket glue are needed which is easier and / or cheaper to manufacture, but at the same time provides at least equivalent comfort compared to state-of-the-art pocket spring mattresses. . It is also necessary that each individual pocket coil springs and pocket spring mattresses that distribute better resilience and responsiveness and that allow the use of reduced amounts of cushioning or cushioning material on the top of the bed or seat product when the spring set is complete. Furthermore, it is necessary that such individual pocket springs and pocket spring mattresses are stronger and that they maintain their properties for a long period of time and use. SUMMARY OF THE INVENTION
    [009] Therefore, an objective of the present invention is to overcome at least partially these problems, and to provide an individually improved pocket spring, and an improved pocket spring mattress comprising such individually pocketed spring springs.
    [010] These, and other objectives that will be clear from the description that follows, are achieved by the individually bagged coil spring and a bagged spring mattress according to the attached claims.
    [011] According to a first aspect of the invention, an individually bagged coil spring is provided for use in a bed or seat product, said individually bagged coil spring comprising: a coil spring having an upper end and a lower end; a bag-forming housing that includes said coil spring; and a cushion pad located above said helical spring outlet; wherein the housing provides a first compartment that surrounds the helical spring, and a second compartment that surrounds the mortar-cement pad, said first and second compartments being separated from each other.
    [012] The present invention provides individually pocketed coil springs, each comprising a cushion pad, preferably positioned essentially straight above the corresponding coil spring. Providing at least one cushion pad inside each individual bag, each helical spring works independently, resulting in a more comfortable bed or seat product. Thereby, the individual resilience of the bags is maintained, providing excellent comfort and pressure distribution. For such bag units, no additional padding layers are required, as a cushion pad is already incorporated into each bag unit.
    [013] Furthermore, the manufacture of such bag units is relatively simple and inexpensive, as it is not necessary to connect the cushion pad directly to the coil springs. Instead, the cushion pad is arranged in a separate compartment, arranged at the top of the bag that includes the coil spring. This makes it possible to use a conventional manufacturing process to make bagged spring mattresses, and simply add a separate compartment at the top of each bag unit to incorporate the cushion pad. Thereby, the present invention lends itself very well to automated and inexpensive manufacturing, and it is also relatively simple to incorporate additional steps of providing a separate compartment for the cushion pad and to insert such cushion pads in said compartments in the process of being previously known and used manufacturing processes.
    [014] In addition, the fact that the coil spring and the cushion pad in each bag unit are separate from each other, and arranged in separate compartments, ensures that the cushion pad will always remain in place. The lining material of the coil spring housing prevents the cushion pad from moving during use. Consequently, the appearance and comfort of the mattress will remain even over a period of prolonged use.
    [015] Therefore, each bag can be seen here as a common external cover, and a common partition wall connected to or integrated with the external cover, and which extends between the helical spring and the cushion pad, thereby separating the two compartments.
    [016] The extension of the dividing wall between the junctions for the external cover preferably exceeds that of the lateral dimensions of the coil springs and the cushion pads. Due to this arrangement, the part of the partition wall against which the spring and the cushion pad are touching is movable between an upper end position and a lower end, without affecting the outer covering of the dividing areas of the partition wall for the roof. external. In this way, each pair of springs and cushion pads can flex individually between these end positions within the extension area within the bag. Such an arrangement of the present description being movable between an upper and lower end position is itself known from US 6 397 418 by the same applicant, the description of which is fully incorporated herein by reference.
    [017] The dimensions of the bag, that is, the filling layer, coil springs and cushion pads are preferably such that the coil springs are maintained in a polarized state, and in which the dividing walls are not in the position of upper end, when no external pressure is applied. Preferably, the partition walls are also not in the lower end position, but somewhere between those end positions. As a result, bag units become more independently resilient. Furthermore, this ensures that the overall dimensions of the bag units are maintained even if the dimensions of the cushion pads are changed during use. For example, it is common for cushion pads of this type to lose part of their initial shape during use, and, for example, to lose part of their initial thickness. However, the polarized coil spring and the partition wall not being in the uppermost position will compensate for this, and the upper surface of the bag units and the mattress will be kept in the same shape and position. Therefore, the mattress comprising such bag units will keep its upper surface flat and level, and consequently, its original appearance, even after a period of substantial use, and even when some deterioration of the cushion pads has occurred.
    [018] The wrapper preferably comprises a first piece of fabric that forms said first compartment, and a second piece of fabric that forms said second compartment. Thereby, the first piece of fabric can be used in a conventional manner to provide individually pocketed coil springs, and a second piece of fabric can then be added to provide the additional compartment for housing the cushion pad. Preferably, the first piece of fabric entirely houses the helical spring, and the second piece of fabric is arranged to partially accommodate the first compartment, and to be attached to the first piece of fabric.
    [019] In a preferred embodiment, the second piece of fabric is attached to the first piece of fabric along a few transverse connecting lines that extend parallel to the longitudinal direction of the helical spring, said connecting lines preferably consisting of a junction of surface, such as an adhesive, solder or the like. As a result, the connection of the second piece of fabric can be easily incorporated into the conventional pocket spring manufacturing process.
    [020] However, alternatively, the first compartment and the second compartment can be formed by a single piece of fabric. For example, it is possible to arrange the S-shaped fabric to form separate compartments, as described in Document US 6 397 418 by the same applicant, the description of which is fully incorporated herein by reference.
    [021] The helical spring preferably comprises an upper end turn, a lower end turn and a plurality of convolutions between said end turns. Preferably, the coil spring comprises from 2 to 10 convolutions, and more preferably from 5 to 8 convolutions.
    [022] The individually bagged coil spring may also comprise a second cushion pad located below said lower end of said coil spring, said second cushion pad being disposed in a third compartment, said third compartment being separated from said first and second compartments. Therefore, each bag unit in this way contains two cushion pads located above and below the helical spring end turns. Thereby, the cushion pads will be provided on both sides of the mattress, which makes the mattress usable with both sides facing upwards. The cushion pads at both ends can be identical or similar, thereby providing equal properties on both sides. This will increase the longevity of the bag and mattress units. However, the cushion pads can be different, thereby providing the user with a choice between different properties by selecting which side to use as the upper side.
    [023] At least one cushion pad preferably includes at least one piece of foam, and preferably foam made of urethane or latex. At least one cushion pad preferably comprises a piece of cloth attached to a piece of foam.
    [024] Preferably, each cushion pad comprises a piece of foam. The cushion pad can be, for example, a piece of urethane or foam latex, and optionally sandwiched between one or two pieces of cloth. However, it is contemplated in the present invention that the cushion pad comprises several pieces of foam. In addition to foam, other materials such as cotton can be used to form the cushion pad.
    [025] At least one cushion pad preferably has a square configuration. Thereby, the cushion pads will essentially cover the entire upper surface of a mattress formed by such bag units. However, alternatively the cushion pads may have a circular, hexagonal, octagonal shape, and many other geometric configurations are possible.
    [026] The casing is preferably made of a textile material that can be welded.
    [027] In accordance with another aspect of the present invention, there is provided a pocket spring mattress for use in a bed or seat product, which comprises a plurality of parallel springs or individually pocketed springs, in which at least one, and preferably essentially all, of said individually pocketed coil springs is an individually pocketed coil spring of the type discussed above.
    [028] Through this additional aspect of the invention, similar objectives and advantages are obtained as commented above with respect to the first aspect of the invention.
    [029] Therefore, the bagged bed or seat product of the present invention may comprise a plurality of parallel springs of individually pocketed coil springs. The adjacent springs of the springs are joined together using conventional methods such as gluing, ultrasonic welding, or using conventional fasteners such as curving rings. The set of parallel spring springs can optionally be joined to upper and lower edge wires generally rectangular located in the upper and lower planes of the bed or seat product. To complete the bed or seat product of the present invention, a cover cushion can optionally be placed over the spring assembly and a cushion cover placed over the bagged spring mattress.
    [030] Each spring of the springs preferably comprises a row of individual coil springs, a strip of fabric that surrounds the coil springs and a plurality of cushion pads placed on top of the coil springs outside the fabric that houses the coil springs. The strip of fabric on each spring is divided into a plurality of bags by spaced transverse fastening lines. Each bag contains one of the coil springs, and an additional compartment above each coil spring includes at least one cushion pad located above the coil spring. A cushion pad or additional pads can be located below the coil spring in an additional compartment.
    [031] When forming a row of springs, when a strip of fabric has been wrapped around a row of aligned coil springs, the longitudinal edges of the strip of fabric are joined together with a longitudinal fastening line in any known manner, such as sewing, welding or gluing. Opposite layers of the fabric strip on opposite sides of the coil springs are joined together between the coil springs with transverse fixing lines, which similarly can be ultrasonic welds, seam lines, glue lines or any other devices for fixing the layers together. Additional compartments for housing the cushion pads can be provided by means of additional pieces of fabric, or by wrapping the same fabric in a way that provides additional compartments.
    [032] Therefore, each row of individually pocketed coil springs preferably preferably comprises a plurality of aligned coil springs, a strip of fabric surrounding said aligned coil springs, said strip of fabric being divided into a plurality of bags by lines spaced transverse connection points, each bag containing a helical spring.
    [033] The fabric strip preferably comprises at least one longitudinal connecting line that extends parallel to the longitudinal direction of the strip, which defines said bolds together with the plurality of transverse connecting lines that extends transversely to the longitudinal direction of the strip.
    [034] In one embodiment, each spring is formed by a first piece of fabric that forms the said bags, and a second piece of fabric is used to form the second compartments. In this embodiment, the second piece of fabric is preferably connected to the first piece of fabric along spaced transverse connecting lines.
    [035] Each parallel row preferably comprises a plurality of interconnected bagged coil springs, and in which the parallel rows are arranged side by side and interconnected by a surface fixation between the abutting surfaces, in which the surface fixation is adapted to interconnect the rows preferably it comprises at least one of bonding and welding.
    [036] Other aspects, benefits and advantageous features of the invention will be clear from the description that follows and from the claims. DESCRIPTION OF THE DRAWINGS
    [037] These and other aspects of the present invention will now be described in more detail, with reference to the accompanying drawings showing the currently preferred embodiments of the invention.
    [038] Figure 1 shows a schematic perspective view of an embodiment of a mattress according to an embodiment of the present invention.
    [039] Figure 2 shows a cross-sectional view of an individually bagged coil spring according to a first embodiment of the present invention.
    [040] Figure 3 shows a cross-sectional view of an individually bagged coil spring according to a second embodiment of the present invention.
    [041] Figure 4 is a schematic and partially cross-sectional view, which illustrates several method steps for the production of the individually pocketed helical springs of Figure 2.
    [042] Figures 5a and 5b are seen in schematic perspectives, which illustrate several method steps for the production of individually pocketed coil springs in Figure 3.
    [043] Figure 6 is a schematic view illustrating a manufacturing apparatus to be used in combination with the method illustrated in Figure 5. DETAILED DESCRIPTION
    [044] With reference to Figures 1 to 3, a mattress 1 is illustrated that encompasses the invention of this application. Although a mattress is illustrated, the present invention can be used to build any bed or seat product. This mattress 1 comprises a plurality of individually bagged coil spring units 2.
    [045] The mattress 1 here is formed of a plurality of strips or rows 3 of the individually pocketed coil spring units 2. Each row 3 of the bagged coil springs 2 preferably comprises a fabric cover or fabric band 31 within which it is situated. a row or column of helical springs aligned. The individual bags here are formed by longitudinal connecting lines 32, which extend along the rows, for example, at the top or in the middle of the rows, and by transverse connecting lines 33, which extend in the axial direction of the rows. The rows adjacent to the rows 3 can be secured together by fixing the surface to the adjacent surfaces, for example, by gluing, ultrasonic welding, bending rings or any other means.
    [046] In the aforementioned modalities, individually bagged coil spring units are arranged as continuous rows, arranged side by side, and extending parallel to each other, in a direction of the width or length of the mattress, or any or set of springs . However, several alternative configurations are possible. For example, rows can occur non-linearly, in serpentine shapes or similar. In addition, individually pocketed coil spring units can be supplied as single units, or shorter rows, consisting of only a few individually pocketed coil springs.
    [047] As best seen in Figures 2 and 3, each individually bagged coil spring unit comprises a bag 31 that forms the bag, and provides a first compartment 21 that includes a coil spring 4, and a second compartment 22 that includes a cushion pad 5. The first and second compartments are separated from each other. Each coil spring has an upper end 41 and a lower end 42. The second compartment 22 is arranged above the first compartment 21, so that the cushion pad 5 is located above the upper end 41 of the helical spring 4. Therefore, the pads damping elements can therefore be held in place only by being housed in the compartments, without the need for any additional fixing.
    [048] In the exemplary modalities mentioned above, two compartments are provided, and cushion pads are provided only on one side of the mattress. However, it is also possible to provide three or more compartments. For example, individually pocketed coil spring units may comprise a compartment housing a cushioning pad at both the upper and lower ends of the coil springs. Thereby, the cushion pads will be provided on both sides of the mattress.
    [049] The coil spring preferably comprises an upper end turn, a lower end turn and a plurality of convolutions between said end turns. Preferably, the coil spring comprises from 1 to 10 convolutions, and more preferably from 5 to 8 convolutions.
    [050] Each wrapper / bag contains at least one, and preferably only a helical spiral spring. The springs can have a spiral loop with a diameter of approximately 2 to 10 cm, and preferably around 6 cm. Preferably, helical springs are cylinder-shaped, having upper and lower turns that have a smaller diameter than the turns in the center of the springs. However, alternatively all convolutions may have an identical diameter, or may have variations in diameter. For example, helical springs can be in the form of an hourglass helical spring or any other spring shape.
    [051] The cushion pads can be formed by a single material, or by several different materials. For example, the cushion pads may have a layered structure, for example, comprising a foam center piece, an upper piece of fabric and a lower piece of fabric. The upper and lower fabric pieces can be glued or otherwise attached to the upper and lower surfaces of the foam centerpiece. Alternatively, the cushion pad may comprise a single piece or several pieces of foam with or without any piece of cloth. The foam piece can be made of polyurethane, latex or any other conventional foam material. Alternatively, cotton pads or any other material can be used. Gel pads can also be used, optionally housed in enclosures.
    [052] Although the cushion pads are illustrated as being generally square, they may alternatively have any other shape or configuration, such as cylindrical, rectangular foam or any other desired shape. Similarly, the height of the cushion pads may vary as deemed appropriate and suitable for any particular application.
    [053] Different damping pads / coil springs can also be used in individually pocketed coil spring units to provide various properties in the different parts of the mattress. This is because, for example, it is used to form zones that have different properties on the mattress.
    [054] As shown in Figure 1, mattress 1 has a generally planar top surface, formed from individually resilient cushion pads.
    [055] The compartments in the enclosure can be provided in several ways, and two exemplary modalities are illustrated in Figures 2 and 3.
    [056] In the modality of Figure 2, the first compartment and second compartment are formed by a single piece of fabric. The wrapping material is here arranged in an S shape to form separate compartments, similar to the disclosure in US 6 397 418 by the same applicant, the description of which is fully incorporated herein by reference. A first part of the wrapping material forms the first compartment 21, and the compartment is closed by the longitudinal connecting line 32, sense arranged on the side of the unit. Part of the material extends past the longitudinal connection line 32, and is taken back towards the other side of the unit, and connected to the side of the first compartment 21 by means of a second longitudinal connection line 34. Thereby, the second compartment 22 is formed at the top of the first compartment 21.
    [057] In a preferred embodiment, illustrated in Figure 3, a first piece of wrapping material is used to form the first compartment, and a second piece of fabric forms the second compartment. Therefore, in this embodiment, the first piece of wrapping material forms conventional bags for bagging coil springs, and the second piece of fabric forms the second additional compartment for housing the cushion pad.
    [058] The first piece of fabric thereby preferably houses the coil spring entirely, and the second piece of fabric is arranged to be placed over the top of the first compartment, partially housing the first compartment, and to be attached to the first piece of fabric. fabric.
    [059] The second piece of fabric can be connected to the first compartment by means of longitudinal connecting lines 35, and / or by means of transverse connecting lines. In a preferred embodiment, the second piece of fabric is attached to the first piece of fabric only along the transverse connecting lines that extend parallel to the longitudinal direction of the helical spring. The transverse connecting lines can coincide with the transverse connecting lines 33 that separate the bags housing the coil springs, and can be formed simultaneously with and / or by these transverse connecting lines 33. Thereby, the connection of the second part of fabric can be easily incorporated into the conventional bag spring manufacturing process.
    [060] The connecting lines mentioned above, arranged longitudinally or transversely, preferably consist of a surface junction, such as an adhesive, a weld or the like. The connecting lines can be arranged as straight or non-straight continuous lines, or as discontinuous lines, comprising points or the like arranged along a line.
    [061] In Figure 4, a schematic production method and production device is illustrated for a continuous row of individually pocketed coil springs of the type commented above with reference to Figure 2.
    [062] First, a continuous fabric is folded or rolled to form two layers of fabric connected together on one side. Alternatively, two separate layers of fabric can be connected together on one side. The compressed coil springs are inserted between the layers, as shown in position A. Next, the layers are connected together at the open end, along a longitudinal connecting line 32, thereby encircling the coil spring. In this position, helical springs can be rotated, if inserted in a rotated position, and allowed to expand. One of the layers extends past the connection line 32. Then, a cushion pad 5 is arranged on the top of the encircled helical spring. This stage is shown in position B. The extended layer is therefore rolled over the cushion pad, as shown in position C.
    [063] The rolled-up layer can be connected on the other side along a longitudinal connecting line 34. However, it is also possible to connect the rolled-up layer only over the transversal connecting lines. This state is illustrated in Figure D.
    [064] Then, the transverse connecting lines 33 are formed, dividing the row into separate bags, so that each individual unit comprises two compartments, and so that each compartment comprises only a helical spring or only a cushion pad. This state is illustrated in Figure E. The transverse connection lines 33 here serve a dual purpose both for separating the compartments that house the helical springs from each other, and to connect the material that forms the second compartment to the first compartment.
    [065] The transverse connecting lines 33 can, for example, be formed by welding. For example, it is possible to use a heating element 6, which is movable towards the row, thereby applying heat to form solder in desired positions. However, other ways of forming welds are possible, as is well known to those skilled in the art.
    [066] In Figure 5, a schematic production method and production device is illustrated to produce a continuous row of individually pocketed coil springs of the type commented above with reference to Figure 3.
    [067] First, a continuous fabric is folded or rolled to form two layers of fabric connected together on one side. Alternatively, two separate layers of fabric can be connected together on one side. Compressed helical springs are inserted between the layers. Then, the layers are connected together at the open end, along a longitudinal connecting line 32, thereby surrounding the inserted coil spring. In this position, helical springs can be rotated, and allowed to expand. This state is illustrated schematically in Figure 5a.
    [068] Next, a second piece of fabric is provided above the coil springs, and the cushion pads are provided between the housed coil springs and the second piece of fabric. This is illustrated schematically in Figure 5a.
    [069] The second piece of fabric is rolled over the cushion pads and over the top of the helical springs housed. Then, the transverse connecting lines 33 are formed, dividing into separate bags, so that each individual unit comprises two compartments, and so that each compartment comprises only a helical spring and only a cushion pad. The transverse connecting lines 33 here serve a dual purpose both for separating the compartments that house the helical springs from each other, and for connecting the second material that forms the second compartments of the first compartments. This is schematically illustrated in Figure 5b.
    [070] As in the previous example, the transverse connecting lines 33 can, for example, be formed by welding. For example, it is possible to use a heating element, such as ultrasonic welding equipment, that is movable in the direction of the row, thereby applying heat to form solder in the desired positions. However, other ways of forming welds are also possible, as is well known to those skilled in the art.
    [071] Each transverse clamping line 33 preferably extends generally from an upper surface of the spring row to a lower surface of the spring row, and therefore extends approximately the entire height of the spring row. However, the transverse fastening lines 33 can be of any desired length. In addition, there may be several transverse fastening lines 33 between adjacent bags.
    [072] The first and second pieces of fabric can be supplied continuously and simultaneously, as shown schematically in Figure 6. Therefore, the first fabric can be supplied from a first roll 61 of material, and the second fabric can be supplied from a second roll 62 of material. The fabrics are then guided to a manufacturing apparatus 63 where the materials are formed into bags each bag having two compartments, as commented above. The cushion pads are preferably provided between the fabric sheets. For example, pre-cut cushion pads can be provided in a storage tank 64 or other form of supply, and be dispensed between the two sheets of fabric by a dispenser 65 or similar. Alternatively, the cushion pads can be supplied in a continuous row, which is cut to suitable lengths, just before being dispensed.
    [073] Through this arrangement, it is possible to correctly position the cushion pads in a very convenient and efficient way. The cushion pads will be moved along with the fabric blades throughout the manufacturing process and will be secured and held in a correct position by the friction of the blades.
    [074] Therefore, in both methods mentioned above, it is possible to use a continuous manufacturing process to manufacture mattresses with pocket springs, and simply add a separate compartment at the top of each bag unit to incorporate the cushion pad. Thereby, the present invention lends itself very well to automated and inexpensive manufacturing, and it is also relatively simple to incorporate the additional steps of providing a separate compartment for the cushion pad and to insert such cushion pads in said compartments in the processes previously known and used.
    [075] To form the bagged spring mattress for use in a bed or seat product, comprising a plurality of parallel rows and individually bagged coil springs, the rows formed as commented above can be connected together, side by side, it is providing surface fixations between adjacent surfaces. For example, it is possible to use glue, velcro, ultrasonic welding clamps or the like to connect such rows.
    [076] The set of parallel rows of springs can optionally be joined to the generally rectangular, upper and lower edge wires located in the upper and lower planes of the bed or seat product. To complete the bed or seat product of the present invention, a cover cushion can optionally be placed over the spring assembly and a cushion cover placed above the bagged spring mattress.
    [077] Each row of springs preferably comprises a row of individual coil springs, a strip of fabric surrounding the coil springs and a plurality of cushion pads placed on top of the coil springs outside the fabric covering the coil springs. The strip of fabric in each row is divided into a plurality of bags by spaced apart transverse fastening lines. Each bag contains one of the springs, and an additional compartment above each coil spring includes at least one cushion pad located above the coil spring. An additional cushion pad or pads can be located below the coil spring in an additional compartment.
    [078] One skilled in the art understands that the present invention is in no way limited to the preferred embodiments above. On the contrary, many modifications and variations are possible within the scope of the appended claims. For example, more than one cushioning pad can be arranged in each helical spring unit individually bagged. Furthermore, individually pocketed coil spring units can be assembled in various ways, in the form of parallel rows, rows arranged in various patterns, or by separate individual units. In addition, the separate compartments of the units can be formed in various ways, for example, by a single strip of fabric, or by two or more separate pieces of fabric. These and other modifications to the bag units and the mattress formed by such units form part of the present invention, as defined by the appended claims.
    权利要求:
    Claims (14)
    [0001]
    1. Individually bagged coil spring (2) for use in a bed or seat product, said individually bagged coil spring (2) comprising: a coil spring (4) having an upper end (41) and a lower end ( 42); CHARACTERIZED by the fact that it also comprises a first wrapper formed from a single first piece of fabric and that forms a bag that houses said helical spring (4); a second wrapper formed from a single second piece of fabric; and a cushion pad (5) located above said upper end (41) of the helical spring (4); wherein the first housing provides a first compartment (21) which houses the coil spring (4), and the second housing provides a second compartment (22) which houses the cushion pad (5), said first and second compartments (21 , 22) being separated from each other by a portion of the first wrapper, and in which the single second piece of fabric is attached to the single first piece of fabric along transverse connecting lines (33) that extend parallel to a longitudinal direction of the helical spring (4), said connection lines (33) comprising surface junctions.
    [0002]
    2. Individually bagged coil spring (2), according to claim 1, CHARACTERIZED by the fact that the first piece of fabric entirely houses the coil spring (4), and the second piece of fabric is arranged to partially accommodate the first compartment (21), and to be attached to the first piece of fabric.
    [0003]
    3. Helical spring individually bagged (2), according to claim 2, CHARACTERIZED by the fact that the surface junction of the connection lines comprises an adhesive, a weld or the like.
    [0004]
    4. Individually bagged coil spring (2) according to any one of claims 1 to 3, CHARACTERIZED by the fact that the coil spring (4) comprises an upper end turn (41), a lower end turn (42) and a plurality of convolutions between said end turns.
    [0005]
    5. Individually bagged coil spring (2) according to any one of claims 1 to 4, CHARACTERIZED by the fact that it additionally comprises a second cushion pad located below said lower end (42) of said coil spring (4), said second cushion pad being arranged in a third compartment, said third compartment being separated from said first and second compartments (21, 22).
    [0006]
    6. Individually bagged coil spring (2) according to any one of claims 1 to 5, CHARACTERIZED by the fact that the at least one cushion pad (5) includes at least one piece of foam, and preferably foam made of urethane or latex.
    [0007]
    7. Individually bagged coil spring (2) according to any one of claims 1 to 6, CHARACTERIZED by the fact that the at least one cushion pad (5) has a square configuration.
    [0008]
    8. Individually bagged coil spring (2) according to any one of claims 1 to 7, CHARACTERIZED by the fact that the at least one cushion pad (5) comprises a piece of cloth attached to a piece of foam.
    [0009]
    9. Individually bagged coil spring (2) according to any one of claims 1 to 8, CHARACTERIZED by the fact that the wrapper is preferably a weldable textile material.
    [0010]
    10. Mattress with pocket spring (1) to be used in a bed or seat product, CHARACTERIZED by the fact that it comprises a plurality of parallel rows (3) of individually pocketed coil springs (2), in which at least one, and preferably essentially all said individually pocketed coil springs (2), is an individually bagged coil spring (2) as defined in any one of claims 1 to 9.
    [0011]
    11. Mattress with pocket spring (1), according to claim 10, CHARACTERIZED by the fact that each of said rows (3) of individually pocketed coil springs (2) comprises a plurality of aligned coil springs (4), a strip of fabric surrounding said aligned helical springs, said strip of fabric being divided into a plurality of bags by spaced apart transverse connecting lines (33), each bag containing a helical spring (4).
    [0012]
    12. Mattress with bagged spring (1), according to claim 11, CHARACTERIZED by the fact that said strip of fabric additionally comprises at least one longitudinal connecting line (32) which extends parallel to the longitudinal direction of the row (3 ), which defines said bags together with the plurality of transverse connecting lines (33) extending transversely to the longitudinal direction of the row (3).
    [0013]
    13. Mattress with bagged spring (1), according to claim 11 or 12, CHARACTERIZED by the fact that each of said rows (3) is formed by a first piece of fabric that forms said bags, and a second piece of fabric forming said second compartments (22), wherein said second piece of fabric is connected to said first piece of fabric along said transverse connecting lines (33).
    [0014]
    14. Mattress with pocket spring (1), according to any one of claims 10 to 13, CHARACTERIZED by the fact that each parallel row (3) comprises a plurality of interconnected helical pocket springs (2), and in which the parallel rows (3) are arranged side by side and interconnected by fixing the surface between the abutting surfaces, wherein the surface fixing adapted to interconnect the rows (3) preferably comprises at least one of bonding and welding.
    类似技术:
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    BR112015025693B1|2021-02-23|INDIVIDUALLY PACKED HELICAL SPRINGS WITH DAMPING CUSHIONS, AND PACKED SPRING MATTRESSES WITH SUCH HELICIDE SPRINGS
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    同族专利:
    公开号 | 公开日
    WO2014166927A1|2014-10-16|
    AU2014253201A1|2015-10-29|
    EP2789267A1|2014-10-15|
    CN105101846A|2015-11-25|
    MX366552B|2019-07-12|
    BR112015025693A2|2017-07-18|
    EP2789267B1|2015-05-20|
    US20180303245A1|2018-10-25|
    HRP20150693T1|2015-11-06|
    ES2545057T3|2015-09-08|
    RU2015140495A|2017-05-12|
    CA2909009C|2021-03-30|
    DK2789267T3|2015-07-20|
    RU2643593C2|2018-02-02|
    US10993545B2|2021-05-04|
    CN105101846B|2017-04-12|
    PL2789267T3|2016-02-29|
    AU2014253201B2|2018-03-08|
    WO2014166927A8|2015-04-30|
    MX2015014197A|2016-05-10|
    US10098474B2|2018-10-16|
    NZ713019A|2018-07-27|
    US20160045034A1|2016-02-18|
    CA2909009A1|2014-10-16|
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    法律状态:
    2019-01-08| B25D| Requested change of name of applicant approved|Owner name: CARPE DIEM BEDS OF SWEDEN AB (SE) ; STARSPRINGS AB (SE) Owner name: CARPE DIEM BEDS OF SWEDEN AB (SE) ; STARSPRINGS AB |
    2019-01-15| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-04-22| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-09-29| B07A| Technical examination (opinion): publication of technical examination (opinion) [chapter 7.1 patent gazette]|
    2021-01-19| B09A| Decision: intention to grant|
    2021-02-23| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 08/04/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP13162725.9|2013-04-08|
    EP20130162725|EP2789267B1|2013-04-08|2013-04-08|Individually pocketed coil springs with cushoning pads, and pocket spring mattresses with such pocketed coil springs|
    PCT/EP2014/057011|WO2014166927A1|2013-04-08|2014-04-08|Individually pocketed coil springs with cushoning pads, and pocket spring mattresses with such pocketed coil springs|
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