1) An apparatus for erecting ribbed cardboard for protecting packed products, which comprises: a collecting device provided with gripping means which are mobile between a gripping station of a single blank sheet of ribbed cardboard from a store and a folding station of the sheet; a folding matrix, arranged in the folding station, destined to receive a single sheet of ribbed cardboard supplied by the collecting device and provided with a plurality of folding means; a forming punch destined to cooperate with the folding matrix, in the folding station, in order to fold opposite lateral flaps of the sheet by contact with the folding means, the forming punch being destined to retain the sheet on completion of the folding stage; a transfer device hingedly bearing the forming punch and destined to move the forming punch between the folding station and a release station of the sheet, which sheet is retained in a folded configuration by the forming punch in a packing line of the products.
2) The apparatus of claim 1, wherein the gripping means are borne by a frame which is destined to be moved with a rotating-translating movement between the gripping station and the folding station.
3) The apparatus of claim 2, wherein the frame is hinged by a connecting tie rod to a command lever which is angularly rotatable about a first axis, at least an arm being pivoted on the first axis independently of the command lever, the arm bearing the frame, hinged to a top thereof about a second axis parallel to the first axis.
4) The apparatus of claim 2, wherein the frame forms a plurality of parallel arms provided at ends thereof with the gripping means, the arms being destined to insert between the folding means and the folding matrix.
5) The apparatus of claim 1, wherein the transfer device comprises a first kinematism of main movement, which is destined to move the forming punch between the folding station and the release station of the sheet, and a second kinematism destined to function as a trim corrector in order to maintain the forming punch in an oriented position.
6) The apparatus of claim 5, wherein the oriented position is substantially a horizontal position.
7) The apparatus of claim 5, wherein the first kinematism of main movement comprises at least an oscillating arm pivoted to a base about a fixed rotation axis and rotatably bearing, at a free end thereof, about a further rotation axis parallel to the fixed rotation axis, a bracket constrained to an activating lever and rotatably bearing support means of the forming punch.
8) The apparatus of claim 7, wherein the trim-correcting second kinematism comprises a shaft borne rotatably by the bracket, according to the rotation axis, the shaft being hinged by a lever mechanism to the support means of the forming punch and constrained to an activating lever.
9) The apparatus of claim 1, wherein the forming punch comprises a body inferiorly exhibiting a flat work surface, having an essentially rectangular shape and substantially corresponding to a bottom surface and a transversal flap surface of the sheet of ribbed cardboard.
10) The apparatus of claim 9, wherein gripping means are located at the work surface of the forming punch, which gripping means are appropriately distanced and are destined to retain the sheet at an end of the folding stage.
11) The apparatus of claim 1, wherein tabs are associated to the forming punch, which tabs keep the folded longitudinal flaps of the sheet substantially vertical during a stage of transfer thereof to the packing line.
12) The apparatus of claim 1, wherein fixed abut means are associated to the folding matrix, which fixed abut means maintain a folded transversal flap of the sheet substantially vertical during the stage of transfer to the packing line.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. An absorbent article comprising:
an outer cover comprising a stretchable material;
a stretchable bodyside liner joined to the outer cover in a superimposed relation; and
an absorbent structure positioned in between the outer cover and the liner;
wherein the outer cover, liner and absorbent structure form a chassis having a longitudinal axis and a lateral axis, wherein the liner comprises three zones across a lateral direction, the three zones comprising a first edge zone, a middle zone, and a second edge zone, and wherein the middle zone is a uniaxial stretch material that stretches in a first direction, and the respective first and second edge zones stretch in a second direction that is different than the first direction and cannot stretch in the first direction.
2. The absorbent article of claim 1 wherein the respective first and second edge zones are biaxial.
3. The absorbent article of claim 1 the respective first and second edge zones are multiaxial.
4. The absorbent article of claim 1 wherein the uniaxial stretch material stretches substantially in the longitudinal direction.
5. The absorbent article of claim 1 wherein the uniaxial stretch material stretches substantially in the lateral direction.
6. The absorbent article of claim 5 wherein the outer cover is elastic.
7. The absorbent article of claim 5 wherein the liner is elastic.
8. The absorbent article of claim 5 wherein the absorbent structure is attached to the chassis by a longitudinally oriented bond.
9. The absorbent article of claim 1 wherein the outer cover comprises a biaxial material.
10. The absorbent article of claim 1 wherein the stretchable bodyside liner includes a first waist edge and a second waist edge, the second waist edge being opposite from the first waist edge, and wherein the first edge zone and the second edge zone extend substantially from the first waist edge to the second waist edge.
11. An absorbent article comprising:
an outer cover comprising a stretchable material;
a stretchable bodyside liner joined to the outer cover in a superimposed relation, the stretchable bodyside liner including a first waist edge and a second waist edge, the second waist edge being opposite from the first waist edge; and
an absorbent structure positioned in between the outer cover and the liner;
wherein the outer cover, liner and absorbent structure form a chassis having a longitudinal axis and a lateral axis, wherein the liner comprises three zones across a lateral direction, the three zones comprising a first edge zone, a middle zone, and a second edge zone, wherein the first edge zone and the second edge zone extend substantially from the first waist edge to the second waist edge, and wherein the middle zone is substantially limited to stretching in a direction parallel to the lateral axis, and the respective first and second edge zones can stretch in a direction that is not parallel to the lateral axis.
12. The absorbent article of claim 11 wherein the respective first and second edge zones are biaxial.
13. The absorbent article of claim 11 the respective first and second edge zones are multiaxial.
14. The absorbent article of claim 11 wherein the first edge zone and the second edge zone cannot stretch in the direction parallel to the lateral axis.
15. A disposable absorbent article comprising:
an outer cover; and
a stretchable bodyside liner joined to the outer cover in a superimposed relation;
wherein the outer cover and liner form a chassis having a longitudinal axis and a lateral axis, wherein the liner comprises three zones across a lateral direction, the three zones comprising a first edge zone, a middle zone having opposite longitudinal sides, and a second edge zone, and wherein the middle zone is substantially limited to stretching in a direction parallel to the lateral axis, and the respective first and second edge zone can stretch in multiple directions, the multiple directions not including the direction parallel to the lateral axis.
16. The disposable absorbent article of claim 15 wherein the outer cover is elastic.
17. The disposable absorbent article of claim 16 wherein the liner is elastic.
18. The disposable absorbent article of claim 15 further comprising a pair of flaps extending along each of the longitudinal sides of the middle zone.
19. The disposable absorbent article of claim 18 wherein the first edge zone and the second edge zone overlap the middle zone for forming the pair of flaps.
20. The disposable absorbent article of claim 15 wherein the outer cover is biaxially stretchable.
21. The disposable absorbent article of claim 20 further comprising a stretchable absorbent structure positioned in between the outer cover and the liner.
22. The disposable absorbent article of claim 21 wherein the absorbent structure is attached to the article by a bond oriented in the longitudinal direction.
23. The disposable absorbent article of claim 13 wherein the stretchable bodyside liner includes a first waist edge and a second waist edge, the second waist edge being opposite from the first waist edge, and wherein the first edge zone and the second edge zone extend substantially from the first waist edge to the second waist edge.