Seiko Epson Corporation

Seiko Epson Company

Shigemi Sasaki

Noriaki Ozawa

Ikuo Tokunaga

Yoshimitsu Misawa

Tsutomu Saito

A bonding agent having an adhesive and a curing agent is formed on a bonding surface of a dial member. A transfer sheet is attached to a convex side of the dial members, and a release sheet is attached to its bonding agent side to form a dial label. When this dial label is attached to a dial base, the release sheet is peeled off and the dial label is attached to the dial base. The transfer sheet is peeled off together with the excess of the bonding agent, and then the bonding agent is cured by a curing agent. Since the bonding agent in the peripheral portions of the dial members is cured while bonding force is maintained, there is no adherence of fine particles of foreign matter, and a satisfactory appearance can be obtained.

Sheet-like adhesive labels, method of attaching said adhesive labels, dials, method of manufacturing dials and timepieces

In a structure in which a rotating bezel is mounted on a case body, the present invention provides the structure which permits the rotating bezel to be mounted and removed without difficulty even if a brittle material and a deformation difficult material is used in the rotating bezel. When the rotating bezel is pushed downward, the lower end of the engaging rib of the rotating bezel is abutted against the upper end of the holding rib of a glass fixing ring and stress is applied thereby so that the elastically deformable section of the glass fixing ring is elastically deformed inward, that is, toward the side where a clearance is formed. As a result, the engaging rib goes over the holding rib and the rotating bezel is kept in a held state as shown in the figure.

Mounting structure of rotating bezel and watch with the same

A bonded body uses an adhesive having high water resistance to realize an adhesive-fixed structure having excellent waterproof properties and exhibiting relatively low changes in properties of the adhesive layer over time. The adhesive-fixed body of the present invention can be obtained by bonding and fixing a body and a glass cover as exterior pairs of a watch with an adhesive layer. The adhesive of the invention can be a curable adhesive containing 100 parts by weight of prepolymer resin having polytetramethylene oxide as a main chain and methacryl groups or acryl groups at both ends of the main chain or in side chains, 50 to 300 parts by weight of at least one selected from acrylic monomers or methacrylic monomers comprising isobornyl acrylate, isobornyl methacrylate or a mixture thereof, and a coupling agent.

Adhesive-fixed body electronic apparatus and watch

A bonding structure of a timepiece case such as the glass, bezel, case band, pipe, core and case back. Seams bonded with the bonding agent are both durable and waterproof. The bonding agent includes relative to:

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Chino, Japan

Shigemi Sasaki