DE8704721U1 - Adjustable connector for fiber optic cables - Google Patents

Description

• . , ·,..:": ;·' 87G12 08DE

lSiemens Aktiengesellschaft
Adjustable connector for fiber optic cables

5The invention relates to an adjustable plug connection for fiber-shaped optical waveguides consisting of an outer roller, an inner roller mounted eccentrically therein for rotation and a cylindrical holder for the optical fiber arranged eccentrically in the inner roller, the end face of which lies eccentrically in the holder, the axis of rotation of the inner roller being offset from the axis of the outer roller 5.?t.

Such a plug connection is known, for example, from DE PS 43 771. The solution described there has the disadvantage that conical holes must be provided in order to achieve a play-free fit of the individual parts. This means that drilling the holes is relatively laborious.

The object of the present invention is therefore to create an adjustable plug connection for fiber-shaped optical waveguides according to the type of the generic term, in which on the one hand a play-free fit of the individual parts against each other is ensured and on the other hand no complex conical holes have to be made.

To solve this problem, the invention provides that the inner roller is provided with protruding resilient parts on its inner and/or outer surface.

30Further embodiments of the invention are the subject of the subclaims.

In the following, embodiments of the invention are explained in more detail with reference to two figures.
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FIG 1 the plug connection in sectioned front view I

FlG 2 an example of the inner roller* |

FIG 1 shows a fiber-shaped optical waveguide 1 which is eccentrically seated in a cylindrical holder 2. By turning it, the fiber end face can be adjusted so that it is exactly opposite another fixed fiber end face and j

lOthe transmission losses are kept to a minimum. The socket 2 is rotatably mounted in an eccentric bore 3 of an inner roller 4. The inner roller is made of plastic and has ribs 5, 6. The ribs 5, 6 are therefore elastically deformable compared to the other metal parts of the plug-in connector.

15 connection. The socket 2 is seated in the bore 3 in such a way that a defined three-point seat in the roller 4 is produced by resting on the two ribs $ and a contact line 7. A remaining free space 8 can be filled with a pourable, hardenable plastic after adjustment. A groove 9

20facilitates the insertion of the plastic* The inner

Roller 4 is located in an externally mounted I

Bore 10 of an outer roller 11. The position of the roller 4 in the bore 10 is also fixed by a three-point support, defined by the two ribs 6 and a contact point 12.

25. Here too, the free space 8 can be filled with plastic via the groove 9.

In Fig. 2 is another embodiment of an inner roller with an external bore 14 already known from Fig. 1

30. The task of the ribs 5, 6 from Fig. 1, namely to define a f contact line, is fulfilled here by studs 15. These studs 15 are spring-loaded and sit in holes 16. The springs 17 acting on the studs 15 are mounted inside the holes 16. The surface of the eccentric holes

Spring-loaded studs 18 also emerge from the 35 projections 14, which form the contact points for a cylindrical optical fiber holder (not shown here).

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When assembling the plug connection, the fiber optic cable holder is pushed into the inner roller, the knobs 15 and 18 and springs 17 are placed in the hole. By compressing the springs 17, the inner roller 4 can be pushed into the outer roller 11.

Claims (4)

IMI t« ■ ■ · I * ■ 1 · · 87 6 1 2 O 8 DE Protection claims 1. Adjustable plug connection for fiber-shaped optical waveguides consisting of an outer roller, an inner roller mounted eccentrically therein and a cylindrical holder for the optical fiber arranged eccentrically in the inner roller, the front surface of which is located eccentrically in the holder, the axis of rotation of the inner roller being offset from the axis of the outer roller, characterized in that the inner roller (4) is provided with protruding resilient parts (15, 17) on its inner and/or outer surface. 2* Adjustable plug connection for fiber-shaped optical waveguides according to claim 1, characterized in that the inner roller (4) consists of a material that is more elastic than the outer roller (11) and the cylindrical holder (2) for the optical fiber (1). 3. Adjustable plug connection for fiber-shaped optical waveguides according to one of the preceding claims, characterized in that the inner roller (4) is provided on its inner and/or outer surface with two ribs (5, 6) oriented parallel to the direction of travel of the optical waveguide and, together with the contact line (7) to the outer roller (11) or the cylindrical holder (2), a support defined by three lines is created. 4. Adjustable connector for fiber optic cables according to claim 1, characterized in that the inner roller (4) and the holder (2) each have at least one groove (9) oriented parallel to the direction of travel of the fiber-shaped optical waveguide on their inner and/or outer surface.