Method of packaging a single mattress to a small size to be conveniently carried

Claim 1

A method of individually forming and packaging a mattress, including the steps of: reducing the thickness of an elastic structure of the mattress by pressing and feeding means cantileverly projecting; fitting a cover on said structure and on said pressing means to complete the mattress, said cover comprising foam padding with inside film and a closure means; fitting a flexible and substantially air-tight wrapper on the outside of said cover; moving away the mattress with said cover and said wrapper from said pressing and feeding means; closing the cover by said closure means; flattening the mattress together with its cover and the flexible wrapper; engaging a ribbon-shaped film to a rolling-up mandrel arranged to cooperate with a cylinder operating the compression by rolling and being elastically pushed toward said mandrel; inserting the flattened mattress between said mandrel and said compressing cylinder; rotating said mandrel and rolling up on said mandrel said ribbon-shaped film and said flattened mattress by compressing it by means of said cylinder which performs compression by rolling; continuing the rolling up of said ribbon-shaped film for at least a convolution around the mattress being rolled-up on the mandrel and cutting said film; circularly applying at least two adhesive ribbon-shaped strings at spaced apart positions on said at least one convolution of ribbon-shaped film around the rolled mattress in order to stabilize it; axially withdrawing the mandrel from the rolled mattress and putting said mattress in a box-like container.

Claim 2

A method of individually forming and packaging a mattress, including the steps of: reducing the thickness of an elastic structure of the mattress by pressing and feeding means cantileverly projecting; fitting a cover on said structure and on said pressing means to complete the mattress, said cover comprising foam padding with inside film and a closure means; fitting a flexible and substantially air-tight wrapper on the outside of said cover; moving away the mattress with said cover and said wrapper from said pressing and feeding means; closing the cover by said closure means; flattening the mattress together with its cover and the flexible wrapper; engaging a ribbon-shaped film to a rolling-up mandrel arranged to cooperate with a cylinder operating the compression by rolling and being elastically pushed toward said mandrel; inserting the flattened mattress between said mandrel and said compressing cylinder; rotating said mandrel and rolling up on said mandrel said ribbon-shaped film and said flattened mattress by compressing it by means of said cylinder which performs compression by rolling; continuing the rolling up of said ribbon-shaped film for at least a convolution around the mattress being rolled-up on the mandrel and cutting said film; circularly applying at least two adhesive ribbon-shaped strings at spaced apart positions on said at least one convolution of ribbon-shaped film around the rolled mattress in order to stabilize it; axially withdrawing the mandrel from the rolled mattress and putting said mattress in a box-like container.

Claim 6

A method of individually forming and packaging a mattress, including the steps of: reducing the thickness of an elastic structure of the mattress by pressing and feeding means cantileverly projecting; fitting a cover on said structure and on said pressing means to complete the mattress, said cover comprising foam padding with inside film and a closure means; fitting a flexible and substantially air-tight wrapper on the outside of said cover; moving away the mattress with said cover and said wrapper from said pressing and feeding means; closing the cover by said closure means; flattening the mattress together with its cover and the flexible wrapper; inserting the flattened mattress between a rolling-up mandrel and a cylinder operating the compression by rolling and being elastically pushed toward said mandrel; rotating said mandrel and rolling-up on said mandrel said flattened mattress by compressing it by means of said cylinder which performs compression by rolling; inserting a ribbon-shaped film between said cylinder and the mattress during the rolling-up; continuing the rolling up of said ribbon-shaped film for at least a convolution around the mattress being rolled-up on the mandrel and cutting said film; circularly applying at least two adhesive ribbon-shaped strings at spaced apart positions on said at least one convolution of ribbon-shaped film around the rolled mattress in order to stabilize it; axially withdrawing the mandrel from the rolled mattress and putting said mattress in a box-like container.

Claim 7

A method of individually forming and packaging a mattress, including the steps of: reducing the thickness of an elastic structure of the mattress by pressing and feeding means cantileverly projecting; fitting a cover on said structure and on said pressing means to complete the mattress, said cover comprising foam padding with inside film and a closure means; fitting a flexible and substantially air-tight wrapper on the outside of said cover; moving away the mattress with said cover and said wrapper from said pressing and feeding means; closing the cover by said closure means; flattening the mattress together with its cover and the flexible wrapper; inserting the flattened mattress between a rolling-up mandrel and a cylinder operating the compression by rolling and being elastically pushed toward said mandrel; rotating said mandrel and rolling-up on said mandrel said flattened mattress by compressing it by means of said cylinder which performs compression by rolling; inserting a ribbon-shaped film between said cylinder and the mattress during the rolling-up; continuing the rolling up of said ribbon-shaped film for at least a convolution around the mattress being rolled-up on the mandrel and cutting said film; circularly applying at least two adhesive ribbon-shaped strings at spaced apart positions on said at least one convolution of ribbon-shaped film around the rolled mattress in order to stabilize it; axially withdrawing the mandrel from the rolled mattress and putting said mattress in a box-like container.

Claim 8

A method of individually forming and packaging a mattress, including the steps of: reducing the thickness of an elastic structure of the mattress by pressing and feeding means cantileverly projecting; fitting a cover on said structure and on said pressing means to complete the mattress, said cover comprising foam padding with inside film and a closure means; fitting a flexible and substantially air-tight wrapper on the outside of said cover; moving away the mattress with said cover and said wrapper from said pressing and feeding means; closing the cover by said closure means; flattening the mattress together with its cover and the flexible wrapper; inserting the flattened mattress between a rolling-up mandrel and a cylinder operating (the compression) to compress the mattress by rolling and being elastically pushed toward said mandrel; rotating said mandrel and rolling-up on said mandrel said flattened mattress by compressing it by means of said cylinder which performs compression by rolling; circularly applying at least two adhesive ribbon-shaped strings at spaced apart positions around the rolled mattress in order to stablize it; axially withdrawing the mandrel from the rolled mattress and putting said mattress in a box-like container.

Claim 9

A method of individually forming and packaging a mattress, including the steps of: reducing the thickness of an elastic structure of the mattress by pressing and feeding means cantileverly projecting; fitting a cover on said structure and on said pressing means to complete the mattress, said cover comprising foam padding with inside film and a closure means; fitting a flexible and substantially air-tight wrapper on the outside of said cover; moving away the mattress with said cover and said wrapper from said pressing and feeding means; closing the cover by said closure means; flattening the mattress together with its cover and the flexible wrapper; inserting the flattened mattress between a rolling-up mandrel and a cylinder operating (the compression) to compress the mattress by rolling and being elastically pushed toward said mandrel; rotating said mandrel and rolling-up on said mandrel said flattened mattress by compressing it by means of said cylinder which performs compression by rolling; circularly applying at least two adhesive ribbon-shaped strings at spaced apart positions around the rolled mattress in order to stablize it; axially withdrawing the mandrel from the rolled mattress and putting said mattress in a box-like container.

Claim 10

An apparatus for packaging single mattresses including a structure elastically compressible, a cover with an opening provided with a closure means, and a flexible and substantially air-tight wrapper, said apparatus including: pressing and feeding means cantileverly projecting to reduce the thickness of said structure and feed said structure within the cover and flexible wrapper, the cover and the flexible wrapper being capable to fit on said means; squeezing compression means to flatten said mattress together with its cover and its flexible wrapper; a rolling up and pressing device including axially sliding and rotating mandrel means, on said mandrel means being provided for gripping a ribbon-shaped film, a compressing and rolling cylinder elastically urged towards said mandrel, and means for feeding said ribbon-shaped film for rolling it together with the flattened mattress; means for feeding and applying at least two ribbon-shaped adhesive strings around the mattress in rolled configuration on said mandrel; and means for axially moving said mandrel means to withdraw them from said mattress being in rolled configuration.

Claim 11

An apparatus for packaging single mattresses including a structure elastically compressible, a cover with an opening provided with a closure means, and a flexible and substantially air-tight wrapper, said apparatus including: pressing and feeding means cantileverly projecting to reduce the thickness of said structure and feed said structure within the cover and flexible wrapper, the cover and the flexible wrapper being capable to fit on said means; squeezing compression means to flatten said mattress together with its cover and its flexible wrapper; a rolling up and pressing device including axially sliding and rotating mandrel means, on said mandrel means being provided for gripping a ribbon-shaped film, a compressing and rolling cylinder elastically urged towards said mandrel, and means for feeding said ribbon-shaped film for rolling it together with the flattened mattress; means for feeding and applying at least two ribbon-shaped adhesive strings around the mattress in rolled configuration on said mandrel; and means for axially moving said mandrel means to withdraw them from said mattress being in rolled configuration.

Claim 17

An apparatus for packaging single mattresses including a structure elastically compressible, a cover with an opening provided with a closure means, and a flexible and substantially air-tight wrapper, said apparatus including: pressing and feeding means cantileverly projecting to reduce the thickness of said structure and feed said structure within the cover and flexible wrapper, the cover and flexible wrapper being capable to fit on said means; squeezing compression means to flatten said mattress together with its cover and its flexible wrapper; a rolling up and pressing device including axially sliding and rotating mandrel means, a compressing and rolling cylinder elastically urged towards said mandrel; means for feeding and applying at least two ribbon-shaped adhesive strings around the mattress in rolled configuration on said mandrel; and means for axially moving said mandrel means to withdraw them from said mattress being in rolled configuration.

Claim 18

An apparatus for packaging single mattresses including a structure elastically compressible, a cover with an opening provided with a closure means, and a flexible and substantially air-tight wrapper, said apparatus including: pressing and feeding means cantileverly projecting to reduce the thickness of said structure and feed said structure within the cover and flexible wrapper, the cover and flexible wrapper being capable to fit on said means; squeezing compression means to flatten said mattress together with its cover and its flexible wrapper; a rolling up and pressing device including axially sliding and rotating mandrel means, a compressing and rolling cylinder elastically urged towards said mandrel; means for feeding and applying at least two ribbon-shaped adhesive strings around the mattress in rolled configuration on said mandrel; and means for axially moving said mandrel means to withdraw them from said mattress being in rolled configuration.