JP2014034145A5 - - Google Patents

Claims (9)

The first and second sheet-like objects are partially joined to form a joint, and the first sheet-like object protrudes at a portion other than the joint, and the inside becomes a cavity. A method of manufacturing a composite sheet forming a plurality of convex portions,
Using a first roll having a concavo-convex shape on the peripheral surface and a second roll having a concavo-convex shape meshing with the concavo-convex shape of the first roll, the bite between both rolls An uneven shape forming step for forming the unevenness in the first sheet-like material by biting the first sheet-like material into the mating portion;
While holding the first sheet-like material in an unevenly shaped state on the peripheral surface of the first roll, the second sheet-like material is overlaid on the first sheet-like material, The intermediate sheet is manufactured by joining the sheet-like material of 2 at a portion corresponding to the convex portion of the first roll in the first sheet-like material to form a plurality of first joining portions. Process,
Using a third roll having a concavo-convex shape different from the concavo-convex shape of the first roll on the peripheral surface, the first sheet-like object side of the composite sheet intermediate is held on the peripheral surface of the third roll. In such a state, the two sheet-like materials constituting the composite sheet intermediate are joined at a portion corresponding to the convex portion of the third roll to form a second joint on the composite sheet intermediate. And a joining step to
The said 2nd junction part is a manufacturing method of the composite sheet currently formed in the pattern which connects one said 1st junction part and the other said 1st junction part adjacent to this.   The composite sheet intermediate obtained in the intermediate manufacturing step is used for the first roll and the third roll using the fourth roll arranged so that the peripheral surfaces thereof face each other. Directly transferred from the peripheral surface of the roll to the peripheral surface of the fourth roll and held by the peripheral surface of the fourth roll, and further from the peripheral surface of the fourth roll to the peripheral surface of the third roll The method for producing a composite sheet according to claim 1, wherein the composite sheet is directly transferred to the sheet.   The said 1st, 3rd and 4th roll is a manufacturing method of the composite sheet of Claim 2 comprised respectively so that a sheet | seat can be hold | maintained by the suction from the inside of a roll. The uneven shape of the peripheral surface of the third roll is a shape that can accept the unevenness of the first sheet-like material in the composite sheet intermediate on the peripheral surface,
In the joining step, the composite sheet intermediate is held on the peripheral surface in a state where the concave and convex shaped first sheet-like object side and the concave and convex shape of the peripheral surface of the third roll are engaged with each other. The manufacturing method of the composite sheet as described in any one of Claims 1-3. A composite sheet produced by the production method according to any one of claims 1 to 4,
The first and second sheet-like objects are partially joined to form a joint, and the first sheet-like object protrudes at a portion other than the joint, and the inside becomes a cavity. A composite sheet forming a plurality of convex portions,
A composite sheet having a plurality of first joint portions formed in a regular pattern in a dotted pattern and a second joint portion connecting the plurality of first joint portions adjacent to each other as the joint portions.   The composite sheet according to claim 5, wherein the plurality of convex portions are arranged in a staggered manner.   The regular pattern of the first joint portion includes a plurality of virtual polygons arranged on one surface of the composite sheet without gaps, and the first joint portions having a predetermined shape on all the tops of the plurality of polygons. The composite sheet according to claim 5 or 6, wherein the composite sheet is a pattern in which are arranged.   The composite sheet according to claim 7, wherein all the first joint portions overlap the second joint portions.   The composite according to 7 or 8, wherein the second joining portion includes a linear portion extending in a direction intersecting with both the transport direction of the sheet and the direction orthogonal to the transport direction when the composite sheet is manufactured. Sheet.