WO2014207634A1 - Structure pour matelas et machine et procédé de fabrication de la structure pour matelas - Google Patents

Structure pour matelas et machine et procédé de fabrication de la structure pour matelas Download PDF

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Publication number
WO2014207634A1
WO2014207634A1 PCT/IB2014/062472 IB2014062472W WO2014207634A1 WO 2014207634 A1 WO2014207634 A1 WO 2014207634A1 IB 2014062472 W IB2014062472 W IB 2014062472W WO 2014207634 A1 WO2014207634 A1 WO 2014207634A1
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WO
WIPO (PCT)
Prior art keywords
elastic material
springs
row
band
feeding
Prior art date
Application number
PCT/IB2014/062472
Other languages
English (en)
Inventor
Diano Tura
Original Assignee
Flexfor S.R.L.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Flexfor S.R.L. filed Critical Flexfor S.R.L.
Publication of WO2014207634A1 publication Critical patent/WO2014207634A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/04—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas with spring inlays
    • A47C27/06—Spring inlays
    • A47C27/063—Spring inlays wrapped or otherwise protected
    • A47C27/064—Pocketed springs

Definitions

  • This invention relates to a structure for a mattress, and a machine and a method of making the structure for a mattress.
  • the invention is applicable in particular to the furniture industry and, more specifically, to the production and manufacture of mattresses for beds.
  • a first prior art solution is that of the so-called “bagged" springs, that is, wherein each row of springs (at right angles to the direction of extension of the mattress) is equipped with one or more casings made of soundproofing material with a low coefficient of friction in order to prevent, during compression, that the coils of a spring rub against those of the adjacent spring creating an annoying squeaking noise.
  • the aim of this invention is to provide a structure for a mattress, and a machine and a method of making the structure for a mattress which overcome the above-mentioned drawbacks of the prior art.
  • the aim of this invention is to provide a structure for a mattress which is easy to make and of a very high quality.
  • Another aim of this invention is to provide a method for making a structure for a mattress which is fast and highly automated.
  • the aim of this invention is also to provide a machine for making a structure for a mattress which is fast and efficient, and capable of making a structure of a very high quality.
  • the structure for a mattress according to this invention defines a support surface for a user extending along a longitudinal direction of main extension and comprises a plurality of rows of springs extending along a direction transversal to the longitudinal direction between a first and a second end, wherein each spring is housed inside a casing.
  • the structure also comprises a plurality of bands made from elastic material, each interposed between two rows of successive springs and extending parallel to them, wherein each band is fixed to the two rows of springs adjacent to it by at least one cord made of adhesive material extending along the transversal direction.
  • each adhesive cord extends substantially continuously between the first and the second end of each row of springs.
  • this type of structure is very strong and easy to make, since the adhesive cord is applied continuously for the full length of the bands.
  • the plurality of bands described also comprises at least a plurality of first bands and a plurality of second bands, wherein the first bands have a compliance, along a direction at a right angle to the support surface, which is greater than that of the second bands.
  • the structure for a mattress comprises at least one rigid zone, containing the second bands, and at least one soft zone, containing the first bands.
  • first and the second bands are made, respectively, with a first and a second elastic material with predetermined features.
  • the mattress has zones with different rigidity, which are able to respond in a different manner to the stresses imparted by the different parts of the body which they are designed to receive.
  • the structure is advantageously made using the machine according to this invention, which comprises means for feeding at least one row of bagged springs configured for making at least one row of predetermined length and means for feeding at least one elastic material configured for making at least one band of the elastic material with a length substantially equal to the above-mentioned predetermined length.
  • the machine also comprises a pre-assembly station equipped with at least one gluing unit designed for applying at least one cord of adhesive material along the row of springs and/or along the band and configured for moving the row of springs and the band towards each other until abutting them making a portion of the structure for mattresses.
  • a forming station operatively located downstream of the pre-assembly station, there is a forming station, designed to receive the portion of the structure made in the pre-assembly station and equipped with movement means designed to position it in a zone for forming the structure.
  • the machine according to this invention makes it possible to abut and connect together a band of elastic material and a row of bagged springs in an automatic and fast fashion, considerably increasing the production capacity of the company.
  • the means for feeding at least one elastic material comprise at least a first unit for feeding at least a first elastic material and at least a second unit for feeding the second elastic material (different from the first elastic material).
  • the means for feeding at least one elastic material comprise at least one selector element configured for picking up alternately the first elastic material from the first feed unit or the second elastic material from the second feed unit.
  • the selector element is controlled by a control unit, associated with the feed means and with the assembly station, and programmed for controlling the selector element on the first or on the second feed unit as a function of a predetermined configuration of the mattress to be made.
  • FIGS. 1a and 1b are schematic plan views of two different embodiments of a mattress structure according to this invention.
  • FIGS. 2a and 2b show details of sections lla-lla and llb-llb of Figure 1a;
  • FIG. 3 is a perspective view of a machine for making the mattress structure of Figures 1a and 1b, according to this invention
  • Figure 4 is a schematic plan view of the machine of Figure 3.
  • the numeral 1 denotes a mattress structure according to this invention, preferably made using the machine for making a structure for mattresses 100, which is also an object of this invention.
  • the structure 1 for mattresses is the core of the mattress, that is, the elastic structure which, in use, is surrounded by the cover.
  • the structure 1 is a substantially elastic structure mainly planar. More specifically, the structure 1 defines a support surface "A" for a user extending along a main longitudinal direction of extension "B".
  • the longitudinal direction “B” is preferably the direction of lying of the user, that is, that corresponding to the main direction of extension of a single “place" of the mattress.
  • the structure 1 is an elastic structure, comprising a plurality of springs 2 (helical) distributed in the support surface "A" and oriented with the central axis at right angles to the surface. It should be noted that the central axis of the springs 2 corresponds to an operating direction of the springs 2, that is, the line along which the compression/extension cycles occur.
  • the springs 2 are positioned in rows 3, transversal preferably at right angles, to the longitudinal direction "B".
  • the structure 1 is equipped with a plurality of rows 3 of springs 2 extending along a direction "C" transversal to the longitudinal direction "B" between a first end 3a and a second end 3b.
  • Each spring 2 has a relative outer side periphery (defined by the coils) adjacent to, that is, abutting, the outer side periphery of the spring 2 alongside it.
  • the rows 3 are parallel to each other and arranged one after another along the longitudinal direction "B".
  • each spring 2 of a row 3 is aligned, along the longitudinal direction "B", with a corresponding spring 2 of the adjacent row 3.
  • each spring 2 of a row 3 is substantially interposed between two springs 2 of the adjacent row 3.
  • the rows 3 are offset from each other in such a way as to give greater strength or compactness to the structure.
  • each spring 2 comprises a first helical body 2a extending along the above-mentioned central axis between a relative first end and a relative second end, and a second helical body 2b extending inside the first body 2a along the central axis between a relative first end, proximal to the first end of the first body, and a relative second end positioned at a predetermined axial distance from the second end of the first body 2a.
  • each spring 2 is defined by a pair of helical elastic elements which are coaxial with each other and positioned one inside the other.
  • axial distance in this text means a distance measured along the central axis of the spring 2.
  • this gives the mattress a gradual compliance and is more suitable for the needs of the consumer.
  • first helical body 2a has greater length and reduced stiffness compared with the second helical body 2b, positioned inside the first body 2a.
  • the structure 1 comprises a casing 4 for containing each spring 2.
  • the casing can be unique for the entire row of springs 2.
  • each spring 2 is equipped with its own casing, connected to the casing 4 of the next spring 2.
  • the casing 4 is preferably made of covering material, not self-supporting. Even more preferably, the casing 4 is made of fabric or non-woven fabric, in any case a material with a low friction coefficient and low noise level.
  • non-self-supporting is used to mean an extremely rollable material, which can be stored, for example, in rolls, and which can be easily wrapped around the spring 2 to incorporate it.
  • the casing 4 is made using a piece of the material wound around the spring 2.
  • the low coefficient of friction of the material is to be assessed as a function of the noise.
  • reduction of the noise level which originates from the rubbing of two or more springs (of two adjacent springs 2, or two helical bodies 2a, 2b of the same spring 2, as described in more detail below).
  • the casing 4 (and, thus, the piece) is made from non-woven fabric (or similar material).
  • the casing 4 could be made from fabric or mesh.
  • the casing 4 of each spring 2 has at least one neck 5 interposed between the second end of the second body 2b of the spring 2 and the second end of the first body 2a. In that way, a first compartment 4a is formed, containing a portion of the first body 2a and the second body 2b, and a second compartment 4b, containing an end portion of the first body 2a.
  • the second helical body 2b is completely contained inside the first compartment 4a, whilst the end portion of the first helical body 2a is located only in the second compartment 4b, preventing an excessive offset between the two helical bodies 2a, 2b and, consequently, considerably reducing the noise of the spring 2.
  • the structure 1 comprises a plurality of bands 6 made from elastic material, each interposed between two rows 3 of successive springs 2 and extending parallel to them.
  • elastic material means a material in which the elastic properties are related to the properties of the material itself, and not of its structure (as, for example, occurs in the springs).
  • the bands 6 of material are made of one or more of the following materials:
  • Each band 6 is a strip (or wall) of the elastic material extending parallel to the rows 3 of springs 2, interposed between two successive rows 3.
  • the band 6 extends between a relative first end 6a and a relative second end 6b along a respective direction of extension which is transversal, preferably at a right angle, to the longitudinal direction "B".
  • the direction of extension corresponds to or is parallel to the transversal direction "C” along which the rows 3 of springs 2 extend.
  • the structure 1 extends along the relative longitudinal direction "B", between a first edge 1a and a second edge 1b, with alternating rows 3 and bands 6, parallel to each other and extending at right angles to the above- mentioned longitudinal direction "B", parallel to the support surface "A".
  • the first end 6a of each band 6 faces the first end 3a of the respective rows 3 of springs 2.
  • the second end 6b of each band 6 faces the second end 3a of the respective rows 3 of springs 2.
  • the rows 3 of springs 2 have an extension along the transversal direction "C" corresponding to those of the bands 6.
  • the presence of elastic bands 6 (made of noise-free material) interposed between the rows 3 of successive springs 2 makes it possible to considerably reduce the noise emitted by the structure 1 , that is, by the mattress.
  • the presence of the bands 6 also makes it possible to make the structure 1 particularly articulated.
  • each band 6 is fixed to two rows 3 of springs 2 adjacent to it by at least one cord 7 made of adhesive material extending along the transversal direction "B".
  • the adhesive cord 7 extends substantially continuously between the first 3a and the second end 3b of each row 3 of springs 2.
  • the adhesive cord 7 extends substantially continuously between the first 6a and the second end 6b of each band 6.
  • the cord 7 is substantially a continuous strip of adhesive material.
  • the distribution of adhesive material is constant (that is, uniform) along the entire extension of the rows 3 and of the bands 6, thereby improving the quality of the mattress.
  • a continuous adhesive cord 7 makes it possible to create the structure 1 , and, more specifically, the coupling between each row 3 and the respective band 6, in a simple, fast and automated fashion.
  • the structure 1 comprises at least a plurality of first bands 9 and a plurality of second bands 10, wherein the first bands 9 have a compliance along a direction at a right angle to the support surface "A", which is different to that of the second bands 10.
  • the structure also comprises a plurality of third bands 8, having a compliance which is different both from the first bands 9 and from the second bands 10.
  • the first bands 9 have a compliance, along a direction at a right angle to the support surface "A", greater than that of the second bands 10 and, where present, that of the third bands 8.
  • the third bands 8 have a compliance along a direction at a right angle to the support surface "A" which is intermediate between that of the first bands 9 and that of the second bands 10.
  • the first bands 9 are bands with a maximum compliance, that is to say, soft.
  • the second bands 10 are bands with a minimum compliance, that is to say, rigid.
  • the third bands 8 are bands with a compliance which is intermediate between the compliance of the first bands 9 and that of the second bands 0.
  • the structure 1 comprises at least one rigid zone "R”, containing the second bands 10, and at least one soft zone “S”, containing the first bands 9.
  • the structure 1 also comprises an intermediate zone "I”, containing the third bands 8.
  • Figures 1a and 1b show:
  • first bands 9 positioned at a zone for receiving the head and a zone for receiving the buttocks
  • second bands 10 positioned at a zone for receiving the shoulders
  • the arrangement of the bands 6 is symmetrical relative to a median line parallel to the transversal direction "C", of the structure 1.
  • the mattress that is, the structure 1
  • the structure 1 described above is made using a machine 100 for making structures for mattresses, which is also an object of this invention.
  • the machine 100 comprises means 101 for feeding at least one row 3 of springs 2, means 109 for feeding at least one elastic material 60 designed to make at least one band 6 of the material (corresponding to the band 6 described above).
  • the springs 2 of the row 3 are preferably housed inside the casings 4, with all the above-mentioned advantages.
  • the machine 100 comprises a pre-assembly station 103 configured for moving the row 3 of springs 2 and the band 6 towards each other until abutting them making a portion "P" of the structure 1 for mattresses.
  • portion of the structure is used in this text to define a row 3 of springs 2 coupled (using adhesive) to a respective band 6.
  • the pre-assembly station 103 is equipped with at least one gluing unit 114 designed for applying at least one cord 7 of adhesive material along the row 3 of springs and/or along the band 6 so as to allow a mutual fixing once they are abutted against each other.
  • the machine 100 comprises at least one unit 102 for feeding a continuous chain 30 of springs 2 to which are associated separating means 105 designed for separating a portion 30a of the chain 30, so as to make the above-mentioned row 3 of springs 2.
  • the feeding means 101 are preferably defined by the feed unit 102 and by the separating means 105.
  • the separating means 105 could be operatively positioned upstream of the pre-assembly station 103, or, in a preferred embodiment, operatively positioned downstream of the pre-assembly station 103 for separating a portion 30a of the chain 30 once the i ⁇ respective band 6 has already been applied (that is, to separate the j3 ⁇ 4 portion "P").
  • the feed unit 102 comprises a transversal member 102a extending horizontally along a respective main direction and a pulling element 102b movable along a first direction "D", corresponding to the main direction of the transversal member 102a, for moving the chain 30 of * springs 2 towards the pre-assembly station 103.
  • the pulling element t 02b moves along the transversal member 02a.
  • the pulling element 102b is defined by a conveyor belt 104, x even more preferably by two conveyor belts opposite to (and superposing) each other for acting on both ends of the springs 2.
  • the feed unit 102 is movable along the first direction "D" for moving the row 3 entering or through the pre-assembly station 103.
  • the feed unit 102 is associated with a measuring element 106 designed to measure the length of the portion of chain 30 entering or feeding out of the pre-assembly station 103.
  • the machine 100 comprises a control unit 107 associated with the measuring element 106 and the separating means 105 and configured for controlling the separating means 105 as a function of a signal received by the measuring element 106; more specifically, the signal representing the reaching of the predetermined length of the portion 30a of chain 30.
  • the separating means 105 are defined by a blade or by a laser.
  • the means 105 could comprise other elements or devices designed to allow the cutting of the cord.
  • the "predetermined length" of the row 3 is preferably a value preset by a user in a programmable memory (not illustrated) associated with the control unit 107.
  • the value may be expressed as a length or as a number of springs 2 for each row 3.
  • the measuring element 06 or the measuring means 106) is defined by an encoder associated with the conveyor belt 104, in particular to a relative pulley.
  • the separating means 105 are positioned at an outlet section of the pre-assembly station 103.
  • the measuring element and the separating means could be made in a different manner, provided they are designed for making the row 3 of springs 2 separating them from the chain 30.
  • the feed means 101 comprise, operatively positioned upstream of the feed unit, a plurality of units (loaders, not illustrated) for storing springs 2, each containing a respective type of springs 2.
  • the types of springs 2 are differentiated by type of structure and/or stiffness and/or other parameters regarding the elastic response to the stresses.
  • control unit 107 is also associated with the storage units and configured for activating the storage unit corresponding to the type of springs 2 selected by the operator (either manually or by entering data in the memory).
  • the machine 100 also comprises, as mentioned above, means 109 for feeding at least one elastic material 60, designed for making at least one band 6 of elastic material 60 of length substantially equal to the predetermined length.
  • elastic material means a material in which the elastic properties are related to the properties of the material itself, and not of its structure (for example, spring).
  • the bands 6 of material are made of one or more of the following materials:
  • the means 109 for feeding the elastic material 60 are also equipped with a cutting element 110 designed for cutting the elastic material 60 in such a way as to make the bands 6 of predetermined length.
  • the cutting element 110 is distinct from the separating means 105 and is operatively located upstream of the pre-assembly station 103.
  • the feed means 109 are configured in such a way as to provide, at the infeed to the pre-assembly station 103, a predetermined measuring band 6.
  • the cutting element could coincide with the separating means 105; in that embodiment, the elastic material 60 is introduced into the pre-assembly station 103, and glued to the chain 30; only then are the separating means 105 activated by the control unit for making the portion "P" of the structure 1 , simultaneously making the band 6 and the row 2.
  • the means 109 comprise a pulling element 111 operating on the elastic material 60 to grip it and pull it into the pre-assembly station 103 and, preferably, a sensor element (not illustrated) configured for measuring a parameter correlated with the length of a segment of elastic material 60 "pulled" into the pre-assembly station 103.
  • the control unit 107 is also associated with the means 109 for feeding the elastic material 60, set up to receive from the sensor element a signal representing the length of the segment and configured for activating the cutting element 110 as a function of a predetermined value of the signal.
  • the elastic material 60 is stored in rolls 61.
  • the machine 100 is associated with at least one roll 61 of elastic material 60 to be processed to obtain the bands 6.
  • the means 109 for feeding the elastic material 60 comprise at least one roller 112 on which the elastic material 60 can be rolled (in rolls).
  • the roller 112 is rotatable about a relative axis to unroll the elastic material 60.
  • the pulling element 1 1 is equipped with a clamp (or gripper) 111a operating on a free end of the roll 60 for pulling it inside the pre- assembly station 103.
  • the roller is rotatable about a horizontal axis of rotation.
  • the pulling element 111 is at least partly movable along a second direction
  • the means 109 are positioned above the means 101.
  • the elastic material 60 is located above the chain 30.
  • the pulling means 111 are positioned higher that the feed unit 102.
  • the means 109 are positioned side by side with the means 101.
  • the means 109 for feeding the elastic material 60 comprise at least a first unit 109a for feeding a first elastic material 60a and at least a second unit 109b for feeding a second elastic material 60b different from the first elastic material 60a.
  • the means 109 for feeding the elastic material 60 comprise a third unit 109c for feeding a third elastic material 60c.
  • the first elastic material 60a (with which the first bands 9 are made) has a compliance greater than that of the second elastic material 60b (with which the second bands 0 are made).
  • the third elastic material 60c (with which the third bands 8 are made) has a compliance which is intermediate between that of the first elastic material 60a and that of the second elastic material 60b.
  • compliance is used to mean substantially a" value which is (inversely) proportional to the rigidity of the elastic material along the direction of use.
  • the means 109 comprise a first 112a, a second 112b and a third roller 112c on which the first 60a, the second 60b and the third 60c elastic material are wound, respectively.
  • the means 109 would comprise only the first 112a and the second roller 112b.
  • the number of rollers 112 is preferably directly proportional to the number of types of elastic material 60 used.
  • the means 109 for feeding the elastic material 60 comprise at least one selector element 113 configured to pick up alternatively the first elastic material 60a from the first feed unit 09a or the second elastic material 60b from the second the feed unit 109b (and, where present, the third elastic material 60c from the third feed unit 109c).
  • the selector element is associated with the feed units 109a, 109b, 109c for moving them such a way as to position the end of the elastic material 60 selected in the proximity of the clamp 111a, or of the pick-up zone.
  • the selector element 113 is defined by a carriage 113a configured to translate the rollers 112 and the rolls 61.
  • control unit 107 (which is associated with the feed means 109) is programmed to control the selector element 113 (that is, the carriage 13a) for positioning the first feed unit 109a or the second the feed unit 109b (or, where present, the third feed unit 109c) at the clamp 11 a as a function of a predetermined configuration of the mattress to be made.
  • the carriage 113a is movable between:
  • the selector element could be associated with the clamp 11 a for positioning it at the free end of the elastic material 60 selected.
  • the pulling means could comprise as many clamps (or grippers) as there are elastic materials 60 (or rolls) and the selector element 113 configured simply for activating one or other of the clamps according to the signal received from the control unit 107.
  • the machine 100 comprises a pre-assembly station 103.
  • the pre-assembly station comprises at least one infeed, designed for the infeed of the row 3 and the band 6 (or of the chain 30 and the elastic material 60). In some embodiments, there are two infeeds, separate from each other, each associated with the means 101 or with the means 109.
  • the pre-assembly station 103 comprises an outfeed 118, designed for the outfeed of the portion "P" of the structure 1 made by the joining of a band 6 and a row 3.
  • the means 101 for feeding the row 3 of springs 2 and the means 109 for feeding the elastic material 60 are positioned at a same side of the pre- assembly station 103.
  • the pre-assembly station 103 is equipped with at least one gluing unit 114 designed for applying a quantity of adhesive material along the row 3 of springs 2 and/or along the band 6 of elastic material 60.
  • the gluing unit 114 is preferably positioned at the joining zone wherein each row 3 is fixed to the respective band 6.
  • the gluing unit 114 and the band 6 or the row 3 are movable relative to each other along the first direction "D" or the second direction ⁇ ".
  • the movement can depend on the feed unit 02, the pulling means 1 1 or the gluing unit 114.
  • the gluing unit 114 comprises a spraying nozzle 1 4a movable parallel to the first direction "D" and/or the second direction ⁇ ", inside the pre-assembly station 103, for applying the adhesive material on the row 3 or on the band 6.
  • the spraying nozzle 114a is designed for applying the adhesive material with substantial continuity, defining a continuous cord 7 as described above with regard to the structure 1.
  • an applicator roller or the like may be used in place of the spraying nozzle.
  • the pre-assembly station 103 comprises a tipping portion (not illustrated) located downstream of the gluing means and configured for tipping the portion "P" from a lying down position to an upright position.
  • a tipping portion located downstream of the gluing means and configured for tipping the portion "P" from a lying down position to an upright position.
  • the tipping portion preferably defined by a loose zone interposed between the infeed and outfeed of the pre-assembly station 103, allows the portion "P" to be tipped thus allowing a more simple forming of the structure 1.
  • the machine 100 also comprises a forming station 116 operatively located downstream of the pre-assembly station 103 and designed to receive the portion "P" of the structure 1 made in the pre-assembly station 103.
  • the forming station is equipped with movement means 15 designed to position it in a forming zone "Z" of the structure .
  • the movement means 115 are designed for moving the portion "P" in the forming zone "Z” in such a way as to abut it with a previous portion "P" in order to make the structure 1.
  • the forming station 116 is equipped with a respective gluing unit 120 operating upstream of the movement means 115 and configured for applying at least a cord 7 of adhesive material along the portion "P".
  • the gluing unit 120 of the forming station 116 is configured for distributing the glue on the face of the row 3 of springs or the band 6 of the portion "P" facing the previous or next portion "P" to be abutted.
  • the gluing unit 116 of the forming station 120 comprises at least one spraying unit 120a (or applicator) located at the forming zone "Z" and movable along the portion "P" of the structure for making the cord 7 of adhesive material.
  • the movement means 115 are designed for moving the portion "P" towards a part of the structure 1 made previously.
  • the movement means 115 are preferably operating along a third direction "F", at right angles to the first direction "D" and the second direction "E".
  • the movement means 115 are movable between a home position, proximal to at least an infeed of the forming station 116 and an operating position, proximal to an outfeed 118 of the forming station.
  • the movement means 115 comprise a pushing unit 115a oriented along the first direction "D" and movable between the home position and the operating position.
  • the pushing unit 115a is defined by a transversal member extending along the first direction "D", parallel to the transversal member 102a, and movable at right angles to it.
  • the actuation of the pushing unit 115a is preferably hydraulic or pneumatic, but it might be electrical or even of another type.
  • the machine 1 also comprises further movement means 119 configured to translate the part of the portion of the structure 1 made at least partly outside the forming station 116.
  • the further movement means 119 are located at the outfeed 118 of the forming station 116 and operate to translate the structure 1 outside.
  • the further movement means 9 enter into operation (that is to say, they are actuated by the control unit 107) to translate the part of the structure 1 by at least one step (equal to the thickness of the portion "P") through the outfeed 118.
  • step is used to denote the distance corresponding to the thickness, along the longitudinal direction "B" of the structure 1 , of the portion "P".
  • the control unit 107 is programmed for:
  • control unit 107 defines a working cycle of the machine 1 , repeated a plurality of times one after the other.
  • the further movement means 119 are defined by a conveyor belt 119a movable away from the outfeed 118 of the forming station 116.
  • Another object of this invention is a method for making a structure 1 for mattresses, in particular the structure 1 described above.
  • the method comprises preparing at least one row 3 of springs 2 (preferably housed inside casings 4), having a predetermined length delimited by a first end 3a and a second end 3b.
  • this step is performed by feeding a continuous chain 30 of bagged springs 2 cutting it when the predetermined length is reached. Preparing at least one band 6 made of elastic material 60 having a length equal to the predetermined length.
  • this step is performed by feeding a roll 61 of elastic material 60 and cutting it when the predetermined length is reached.
  • At least two rolls of elastic material are prepared, preferably three, and one is selected as a function of a desired configuration of the structure 1.
  • At least a first band 9 and a second band 10 are prepared, preferably also a third band 8.
  • the first 9, the second 10 or, if present, the third band 8 is selected alternately as a function of a predetermined configuration of the mattress to be made.
  • the method then comprises the application of at least a cord 7 of adhesive material along the row 3 or the band 6.
  • the cord 7 is continuous and is applied by spraying adhesive material along the entire row 3 or the entire band 6.
  • the application of the cord 7 of adhesive material is executed by applying the adhesive material with substantial continuity between the first end 3a and the second end 3b of each row 3 of springs or between the ends of the band 6.
  • the method then is repeated in alternate steps, feeding and gluing alternately the band 3 or the row 6 and joining them to obtain a structure wherein each row 3 is interposed between two bands 6 or vice versa.
  • the invention achieves the preset aims and brings important advantages.
  • the structure for mattresses according to this invention as well as being particularly resistant and adaptable to the requirements of the user, can be made automatically with ease and speed.
  • the machine which makes it can operate in a fast and controlled fashion, considerably increasing the working production of the structure.
  • the possibility of controlling several distinct elastic materials allows a multitude of different structures to be made with a single machine, without having to set up the machine each time.

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  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

L'invention concerne une structure pour matelas définissant une surface de support (A) pour un utilisateur s'étendant le long d'une direction d'extension longitudinale principale (B) comprenant une pluralité de rangées (3) de ressorts (2) s'étendant le long d'une direction (C) transversale à la direction longitudinale (B) entre une première extrémité (3a) et une seconde extrémité (3b), chaque ressort (2) étant logé à l'intérieur d'un corps (4), et une pluralité de bandes (6) composées d'un matériau élastique (60), chacune étant interposée entre deux rangées (3) de ressorts successifs (2) et s'étendant parallèlement à celles-ci, chaque bande (6) étant fixée aux deux rangées (3) de ressorts (2) adjacentes à celle-ci par au moins un cordon (7) composé d'un matériau adhésif s'étendant le long de la direction transversale (B).
PCT/IB2014/062472 2013-06-24 2014-06-20 Structure pour matelas et machine et procédé de fabrication de la structure pour matelas WO2014207634A1 (fr)

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ITRN2013A000026 2013-06-24
IT000026A ITRN20130026A1 (it) 2013-06-24 2013-06-24 Struttura per materasso, macchina e metodo di realizzazione di detta struttura per materasso.

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ITUA20162736A1 (it) * 2016-04-20 2017-10-20 Quarrata Forniture S R L Macchina e procedimento di confezionamento di materassi
WO2018073035A1 (fr) * 2016-10-17 2018-04-26 Agro Holding Gmbh Carcasse à ressorts ensachés et procédé pour la fabrication de la carcasse à ressort ensachés
WO2020042547A1 (fr) * 2018-08-31 2020-03-05 广州市联柔机械设备有限公司 Matelas à ressorts ensachés maintenu avec un matériau en bande au niveau d'une surface latérale de celui-ci et dispositif de fabrication et procédé associé
CN113860252A (zh) * 2021-09-15 2021-12-31 广州市联柔机械设备有限公司 一种袋装弹簧床网制备装置及方法

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US4907309A (en) 1987-08-24 1990-03-13 Andreas Breckle Pocket-spring core mattress
DE4031651A1 (de) * 1990-10-05 1992-04-09 Hueser Schlaraffia Werke Taschenfederkern
EP0624545A1 (fr) * 1993-05-14 1994-11-17 Toledo Fjederindlaeg A/S Procédé de fabrication d'un ressort inséré
FR2750584A1 (fr) * 1996-07-03 1998-01-09 Productions Marcel Maceron Et Carcasse a ressorts internes, notamment matelas, et son procede de realisation
FR2799622A1 (fr) * 1999-10-18 2001-04-20 Oniris Sa Matelas a ressorts ensaches

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Publication number Priority date Publication date Assignee Title
US4907309A (en) 1987-08-24 1990-03-13 Andreas Breckle Pocket-spring core mattress
DE4031651A1 (de) * 1990-10-05 1992-04-09 Hueser Schlaraffia Werke Taschenfederkern
EP0624545A1 (fr) * 1993-05-14 1994-11-17 Toledo Fjederindlaeg A/S Procédé de fabrication d'un ressort inséré
FR2750584A1 (fr) * 1996-07-03 1998-01-09 Productions Marcel Maceron Et Carcasse a ressorts internes, notamment matelas, et son procede de realisation
FR2799622A1 (fr) * 1999-10-18 2001-04-20 Oniris Sa Matelas a ressorts ensaches

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUA20162736A1 (it) * 2016-04-20 2017-10-20 Quarrata Forniture S R L Macchina e procedimento di confezionamento di materassi
WO2017182921A1 (fr) * 2016-04-20 2017-10-26 QUARRATA FORNITURE S.r.L. Machine et procédé pour emballer des matelas
WO2018073035A1 (fr) * 2016-10-17 2018-04-26 Agro Holding Gmbh Carcasse à ressorts ensachés et procédé pour la fabrication de la carcasse à ressort ensachés
US11633048B2 (en) 2016-10-17 2023-04-25 Agro Holding Gmbh Pocket-spring core and method for producing the pocket-spring core
WO2020042547A1 (fr) * 2018-08-31 2020-03-05 广州市联柔机械设备有限公司 Matelas à ressorts ensachés maintenu avec un matériau en bande au niveau d'une surface latérale de celui-ci et dispositif de fabrication et procédé associé
EP3821765A4 (fr) * 2018-08-31 2022-05-25 Guangzhou Lianrou Machinery & Equipment Co., Ltd. Matelas à ressorts ensachés maintenu avec un matériau en bande au niveau d'une surface latérale de celui-ci et dispositif de fabrication et procédé associé
CN113860252A (zh) * 2021-09-15 2021-12-31 广州市联柔机械设备有限公司 一种袋装弹簧床网制备装置及方法
CN113860252B (zh) * 2021-09-15 2022-06-24 广州市联柔机械设备有限公司 一种袋装弹簧床网制备装置及方法
US11834324B2 (en) 2021-09-15 2023-12-05 Guangzhou Lianrou Machinery & Equipment Co., Ltd. Device and method for manufacturing pocket spring bed net

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