Abstract: The invention relates to a central part for an eyeglass hinge, comprising: a first articulation region, which is designed to connect, with articulation about a first articulation axis, the central part to a frame of eyeglasses; a second articulation region, which is designed to connect, with articulation about a second articulation axis, the central part to a temple of the eyeglasses; and a cable guide opening, which extends through the central part perpendicularly to the articulation axes and is designed for the feeding of a cable from the temple to the frame through the central part, the cable guide opening being open in the direction of the articulation axes at least on one side.

Abstract: An electrically weldable spring hinge for eyeglasses includes a housing open on a bottom side having a cavity into which a spring element may be inserted and in which at least one support element is provided. The spring hinge additionally includes a hinge element displaceably supported in the housing. The at least one support element is essentially centrally located in the region of an open end face section of the housing and, starting from a base area of the housing, protrudes into the cavity in a freestanding manner. A welding button for electrically welding the housing to the eyeglass element is provided on the bottom side of the support element facing an eyeglass element.

Abstract: The invention relates to an electrically weldable spring hinge (1) for eyeglasses, comprising a housing (3) which is open on a bottom side (15) and has a cavity (17) into which a spring element (7) may be inserted and in which at least one support element (19) is provided, and a hinge element (5) which is displaceably supported in the housing (3). According to the invention, the at least one support element (19) is essentially centrally located in the region of an open end face section (S) of the housing (3) and, starting from a base area (B) of the housing (3), protrudes into the cavity (17) in a freestanding manner, and a welding button (23) for electrically welding the housing (3) to the eyeglass element is provided on the bottom side (21) of the support element (19) facing an eyeglass element.