RESIN JOINED BODY PRODUCTION DEVICE AND RESIN JOINED BODY PRODUCTION METHOD

Provided is an apparatus for producing an adhesion-free joined-resin product and a method for producing the joined-resin product having strong joining force without deteriorating optical properties and decreasing mechanical strength of resin members. The apparatus for producing the joined-resin product according to the present invention is an apparatus for producing a joined resin product in which two or more resin members are joined and includes a surface treatment mechanism and a joining mechanism. The surface treatment mechanism includes an electrode unit generating ionized gas and a member holding mechanism arranged at a position separated from the electrode unit by a space and holding the resin member, and activates a surface to be joined of the resin member held by the member holding mechanism, by the ionized gas generated by the electrode unit. The joining mechanism bonds the two or more resin members together where at least one of surfaces to be joined each other is activated by the surface treatment mechanism, at the respective surfaces to be joined.