GASKET AND MANUFACTURING METHOD FOR SAME

• Main Authors: HAYASHI, TAKAHIRO, YUI, HAJIME, SASO, HIDETOSHI, HORIMOTO, TAKAYUKI, KURANO, YOSHIHIRO, OBA, KENICHI, URAKAWA, TETSUYA, NISHIMURA, TAKURO
• Format: Patent
• Language: English; French
• Published: 28.03.2023
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; BASIC ELECTRIC ELEMENTS; BLASTING; CYLINDERS; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PISTONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SEALINGS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The purpose of this invention is to make it easy to handle all-rubber gaskets. To achieve this purpose, a gasket is characterized in that a gasket body of only rubber is combined with a carrier film that is made from a resin film to hold the gasket body in a non-adhesive state. A three-dimensional portion having a shape that is deformed along the external shape of the gasket body is provided at a position where the gasket body and a plane of the carrier film overlap, and a portion of the gasket body is contained in the three-dimensional section. The gasket body is used as a gasket for fuel cells incorporated into a fuel cell stack. La présente invention a pour objet de faciliter la manipulation de joints d'étanchéité tout caoutchouc. Pour atteindre cet objet, un joint d'étanchéité est caractérisé en ce qu'un corps de joint d'étanchéité uniquement constitué de caoutchouc est combiné à un film support fabriqué à partir d'un film de résine afin de maintenir le corps de joint d'étanchéité dans un état non adhésif. Une section tridimensionnelle ayant une forme qui est déformée le long de la forme externe du corps de joint d'étanchéité est amenée au niveau d'une position où le corps de joint d'étanchéité et un plan du film support se chevauchent, et une partie du corps de joint d'étanchéité est contenue dans la section tridimensionnelle. Le corps de joint d'étanchéité est utilisé sous la forme d'un joint d'étanchéité pour piles à combustible incorporées dans un empilement de piles à combustible.