MANUFACTURING SYSTEM AND MANUFACTURING METHOD FOR SHEET-LIKE STRUCTURE

Abstract

An object of the present invention is to provide a manufacturing system and a method for manufacturing sheet-like structures. The manufacturing system of sheet-like structures contains a loosened portion forming apparatus by which plural loosened portions, which are substantially U-shaped, are formed on a cord member, and plural linear portions, which connect each of the plural loosened portions, are formed substantially linearly; and a sewing apparatus by which each of the plural absorbing members and each of the plural linear portions are sewn with a thread member.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows a plan view of the sheet-like structure of Example 1;

FIG. 2 shows a cross section of X-X′ line in FIG. 1;

FIG. 3 shows a plan view of a sheet-like structure of Example 2;

FIG. 4 shows a plan view of a conventional sheet-like structure;

FIG. 5 shows a view describing a manufacturing system in the first embodiment of the present invention;

FIG. 6 shows an enlarged view of area A in FIG. 5;

FIG. 7 shows a view describing a step of forming a loosened portion in FIG. 6;

FIG. 8 shows a perspective view of area A shown in FIG. 6;

FIG. 9 shows an enlarged view of area B in FIG. 5;

FIG. 10 shows an enlarged view of area C in FIG. 5;

FIG. 11 shows a view describing a manufacturing system in the second embodiment of the present invention;

FIG. 12 shows a view describing a manufacturing system in the third embodiment of the present invention; and

FIG. 13 shows a view describing a manufacturing system in the fourth embodiment of the present invention.

Claims

1. A manufacturing system for a sheet-like structure comprising: a sheet member with a prescribed form; and a cord member sewn onto a predefined surface of the sheet member with a specified thread member and having an extended portion extending from an outer edge of the predefined surface on which a non-sewn area without the specified thread member is formed, the system comprising: a loosened portion forming apparatus to form plural loosened portions on a cord member reeled out in a specified direction, the loosened portions are substantially U-shaped and extending in the direction different to a specified direction, and plural substantially linear portions which connect each of the plural loosened portions respectively;an arranging apparatus to arrange each of the plural sheet members so as to be in contact with each of the plural linear portions formed by the loosened portion forming apparatus;a sewing apparatus to sew each of the plural sheet members arranged by the arranging apparatus and each of the plural linear portions which come in contact with the plural sheet members with a thread member;a thread member cutting apparatus to cut thread connecting portions which are parts of the thread member formed so as to connect a specified sheet member of the plural sheet members on which each of the plural linear portions are sewn by the sewing apparatus and other sheet members which lie adjacent to the specified sheet member; anda cord member cutting apparatus to cut cord connecting portions which are parts of the cord member formed so as to connect a specified sheet member of the plural sheet members and other sheet members which lie adjacent to the specified sheet member at a specified position.

2. The manufacturing system for a sheet-like structure according to claim 1, further comprising a cord member reeling-out apparatus to reel out the cord member in the specified direction.

3. The manufacturing system for a sheet-like structure according to claim 1, wherein the loosened portion forming apparatus is configured to arrange the plural linear portions substantially linearly at specified intervals.

4. The manufacturing system for a sheet-like structure according to claim 3, wherein the sewing apparatus is configured to sew each of the plural linear portions, arranged substantially linearly at specified intervals by the loosened portion forming apparatus, onto each of the plural sheet members along a straight line formed by the plural linear portions.

5. The manufacturing system for a sheet-like structure according to claim 1, wherein the cord member cutting apparatus comprises an apparatus configured to extend the cord connecting portions substantially linearly.

6. The manufacturing system for a sheet-like structure according to claim 1, wherein the sheet-like structure further comprises a sewn area formed on a free end side of the extended portion and including a predefined thread member and the loosened portion forming apparatus is configured to lengthen each length of the plural linear portions in a specified direction to be longer than the length along the specified direction of the plural sheet members which are arranged in contact with the respective plural linear portions by the arranging apparatus.

7. The manufacturing system for a sheet-like structure according to claim 1, wherein the sheet member is a sheet-like absorbing member comprising a specified absorbing layer with liquid absorbability coated with a surface material of thin film form, and the manufacturing system for the sheet-like structure further comprises a sheet-like member forming apparatus to apply the surface material to the absorbing layer.

8. A method for manufacturing a sheet-like structure, containing: a sheet member with a prescribed form; and a cord member sewn onto a predefined surface of the sheet member with a specified thread member and having an extended portion extended from an outer edge of the predefined surface on which a non-sewn area without the specified thread member is formed, the method comprising steps of: forming plural loosened portions on a cord member reeled out in a specified direction, the loosened portions are substantially U-shaped and extending in the direction different to a specified direction, and plural linear portions which connect each of the plural loosened portions respectively, substantially linearly;arranging each of the plural sheet members so as to be in contact with the respective plural linear portions formed in the step of forming the loosened portions;sewing each of the plural sheet members arranged in the arranging step and each of the plural linear portions which come in contact with the plural sheet members with a thread member;cutting thread connecting portions which are parts of the thread member formed so as to connect a specified sheet member of the plural sheet members on which each of the plural linear portion are sewn in the sewing step and other sheet members which lie adjacent to the specified sheet member; andcutting cord connecting portions which are parts of the cord member formed so as to connect a specified sheet member of the plural sheet members and other sheet members which lie adjacent to the specified sheet member at a specified position.

9. The method for manufacturing a sheet-like structure according to claim 8, further comprising reeling-out a cord member wherein the cord member is reeled out in the specified direction.

10. The method for manufacturing a sheet-like structure according to claim 8, wherein the step of forming the loosened portions comprises arranging the plural linear portions substantially linearly at specified intervals.

11. The method for manufacturing a sheet-like structure according to claim 10, wherein each of the plural linear portions, arranged substantially linearly at specified intervals in the step of forming the loosened portions, is sewn onto each of the plural sheet members along a straight line formed by the plural linear portions in the sewing step.

12. The method for manufacturing a sheet-like structure according to claim 8, wherein the step of cutting the cord member comprises extending the cord connecting portions substantially linearly.

13. The method for manufacturing a sheet-like structure according to claim 8, wherein the sheet-like structure comprises a sewn area formed on a free end side of the extended portion and including a predefined thread member and in the step of forming the loosened portions, each length of the linear portions is lengthened in a specified direction, to be longer than the length of the sheet members, which are arranged in contact with the cord member by the arranging apparatus.

14. The method for manufacturing a sheet-like structure according to claim 8, wherein the sheet member is a sheet-like absorbing member comprising a specified absorbing layer with liquid absorbability coated with a surface material of thin film form, and the method for manufacturing sheet-like structures further comprises forming a sheet-like member in which the surface material is applied to the absorbing layer.