Device for producing fused sheet body, and method for producing fused sheet body

• Main Authors: YAMADA KUNITOSHI, IWASAKI ATSUSHI, IMAI KOJI, YANASHIMA TAKUO, HAMAMOTO SHINJI
• Format: Patent
• Language: English
• Published: 03.02.2016
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BANDAGES, DRESSINGS OR ABSORBENT PADS; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PERFORMING OPERATIONS; PROSTHESES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; TREATMENT OR PROTECTION OF EYES OR EARS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A device (20) for producing a fused sheet body is provided with: an irradiation head (35) having a lens (351); a support member (21) for transporting a belt-like sheet laminate (10); and a pressing member (24) for applying pressure to the sheet laminate (10). The support member (21) has slit-like opening parts (27) through which laser light (30) can pass. In cross-sectional view, both end parts (21e) of the support member (21) forming the opening parts (27) have tapered parts (211), the space therebetween being wider towards the irradiation head (35) than towards the pressing member (24). The production device (20) cuts the sheet laminate (10), to which pressure is applied, by irradiating same with laser light (30) along the opening parts (27), and fuses the cut edges while the edges overlap, thereby continuously producing a fused sheet body (3) having sealed edges (4).