Nok Corporation

Takuro Nishimura

Hajime Yui

Kenichi Oba

Yoshihiro Kurano

Hidetoshi Saso

Takahiro Hayashi

Taiki Yuasa

Tetsuya Urakawa

Takayuki Horimoto

Ryo Tomita

A method of suctioning a gasket main body with a suction jig to separate the gasket main body from a carrier film. The method separates a gasket main body from a carrier film in a gasket including a combination of the gasket main body and the carrier film adhered thereto, where a suction jig is used to separate the carrier film and the gasket main body; the suction jig includes a suction surface at a position facing the carrier film; the suction surface being formed with a suction groove having a shape that corresponds with a planar shape of the gasket main body, the suction groove being formed with a plurality of suction paths across the entire periphery; and the gasket main body is suctioned to the suction groove with the suction force from the suction paths in the suction jig and separated from the carrier film.

Method for separating a gasket main body from a carrier film

A gasket with a carrier film containing a combination of a rubber-only gasket body and a carrier film holding the gasket body. The carrier film can be easily detached from the gasket body even when the gasket body adheres to the carrier film. In embodiments, the gasket contains a combination of a rubber-only gasket body and a carrier film holding the gasket body. A tab enlarging the plane area of the gasket body is integrally provided in the gasket body. As a method for handling the gasket, when the carrier film is detached from the gasket body, the carrier film is detached from the gasket body in a state where the gasket body is fixed to a base with the tab or the carrier film is detached from the gasket body with the tab in a state where the carrier film is fixed to the base.

Gasket, method for producing same, and method for handling same

A gasket is provided which is configured so that a gasket body is easily separated from a carrier film and the positional shift of the gasket body in stacking can be prevented. The gasket has a combination of a gasket body which contains only a rubber-like elastic body and which, in order to seal a gap between one member and the other member, is mounted in the other member and a carrier film separably stuck to one surface side in the thickness direction of the gasket body, in which an engagement portion is formed in the other surface in the thickness direction of the gasket body at a position corresponding to a portion to be engaged formed in the other member, and the gasket body is mounted in the other member by engagement of the engagement portion and the portion to be engaged.

Gasket and method for mounting same

The present invention improves the handling properties of a rubber-only gasket and the affixability thereof to an attachment position. To this end, the provided gasket is: obtained by combining a gasket body of the rubber-only type, and a carrier sheet that comprises a resin film and holds the gasket body in an un-adhered state; and characterized in that the gasket body is provided with an adhesive section or bonding section for adhering or bonding the gasket body to an attachment position when attaching the gasket body to the attachment position. The adhesive section or bonding section is prepared by providing the lateral surface of the gasket body with a projecting section, and coating the surface of the projecting section with an adhesive or bonding agent. The gasket body is to be used as a gasket for a fuel cell to be incorporated into a fuel cell stack.

Gasket and method of manufacturing the same

An object of the present invention is to make it possible to easily remove a carrier film when removing the carrier film from a gasket body in a carrier-film-equipped gasket, which includes a combination of a rubber-only type gasket body and a resinous carrier film that retains the gasket body, even if the gasket body is adhered to the carrier film. To fulfill the object, a step for peeling, against an adhesive force, the carrier film from the gasket body in a state in which the gasket body is fixed to a base, is carried out. As a preliminary step of the peeling step, the gasket body is pressed from the carrier film side by a pressing device thereby to decrease the adhesion area between the gasket body and the carrier film, and the peeling step is carried out in a state in which the adhesion area has been decreased.

Method for handling carrier-film-equipped gasket

The invention provides a gasket which improves a handling workability of a rubber only type gasket. The gasket of the invention is constructed by a combination of a rubber only type gasket main body, and a carrier sheet which is made of a resin film retaining the gasket main body in a non-bonded state, and the carrier sheet is provided with an air inflow port for making air flow into a portion between the carrier sheet and the gasket main body when the gasket main body is detached from the carrier sheet. A gasket retention portion having a three-dimensional shape which is deformed along an outer shape of the gasket main body is arranged at a position which laps over the gasket main body in a plane in the carrier sheet, and the gasket main body is partly accommodated within the gasket retention portion in a thickness direction.

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.

Growing community of inventors

Fujisawa, Japan

Takuro Nishimura