Patent ID: 8944701
Filing Date: 2015-02-03
Classification: G02B

Abstract:
1. A plug part for an optical plug-in connection, comprising: a plug pin, in which an optical waveguide stub is held, said optical waveguide stub extending over a longitudinal mid-axis, and with a bush-like pin holder, comprising a pin receiving section, in which the plug pin is held in a fixed manner, and an optical waveguide receiving section, to which an end of an optical waveguide cable or an optical waveguide can be fixed in a manner resistant to tensile stress preventing any relative movement between said end of the optical waveguide cable or the optical waveguide and the plug pin, the optical waveguide receiving section having at least two casing parts which can be connected to one another, at least one casing part being fastened or being able to be fastened on the pin receiving section using a hinge in such a way that the casing part can be pivoted through a predetermined pivot angle between an open position and a closed position, wherein said optical waveguide receiving section in its closed position is non-moveable in relation to the plug pin and is non-moveable in the direction of the longitudinal mid-axis of the plug part, and the optical waveguide stub can be welded to a particular cable-side optical waveguide end, the end of the optical waveguide stub which is intended to be welded being located in the region of a touching face of the casing parts, wherein the touching face is substantially flat and the casing part exhibits at least at its cable-side end a recess to accommodate the first plastic casing of a waveguide end being welded to the waveguide stub, wherein at least one of said casing parts has at least one adhesive layer, which is preferably applied in the factory, for connecting said at least two casing parts in order to completely embed and to protect the optical waveguides which are welded to one another, wherein said adhesive layer consists of a double-sided adhesive tape covering the touching face, said adhesive tape further covering a groove for receiving the first casing of the cable-side waveguide in flat manner in order to surround the first plastic casing of the optical waveguide when the casing parts are closed and to provide a first strain-relief means for the optical waveguide.