DE29719323U1 - Memory module for optical fibers - Google Patents

Description

Storage module for optical fiber

The invention relates to a memory module for optical fibers.

Devices for data transmission in optical networks such as distribution racks have options for changing connections made via optical fibers. The "pigtails" (connection cables) used for this must have a certain excess length, which are then stored in a storage module.

Such a cable storage module is known from the published patent application DE 4 322 142 A1 and is permanently mounted on a flat module. The excess length of the pigtail is wound onto a coil body. Figure-of-eight storage units are also known. However, storing the fiber optic wires or fiber optic fibers in many of these storage devices involves a lot of work. Damage often occurs during handling.

The object of the invention is therefore to provide a storage module for optical fibers that can store the excess lengths in a particularly simple manner and also protects the optical fiber from damage. Furthermore, the storage module should also be able to be handled independently of modules and easily mounted on them. 30

The object is achieved by a memory module according to claim 1. Advantageous further developments are specified in the dependent claims.

The particular advantage lies in the simplicity of the device and its ease of use. By twisting the two halves of the module against each other, the optical fiber

GR 97 G 2836

(fiber or wire) without twisting. Either end of the optical fiber can be wound up. The wound up optical fiber is completely protected by the storage module. 5

Once the desired length has been reached, the optical fiber can be led out at several points on the memory module.

The memory module can be attached to an assembly using simple snap fasteners. Both parts of the memory module can also be secured against twisting using additional snap fasteners.

An embodiment of the invention is explained in more detail with reference to figures.

Show it:

Figure 1 shows a winding body of a memory module,

Figure 2 the winding body in side view,

Figure 3 a module cover,

Figure 4 the module cover in side view,

Figure 5 a locking device for fixing the winding body

in the module cover and

Figure 6 shows the storage module before the winding body and module cover are assembled.

In Figure 1 and Figure 2, the winding body (1) of the storage module is shown in top view and side view.

This also consists of the module cover 6 shown in Figures 3 to 5. The optical fiber, a fiber or a wire, is wound onto a very short winding cylinder (2). A flange (3) ensures that the optical fiber is held in place at the side. A feedthrough opening 4 is used to feed the optical fiber through.

97 G2836

The module cover (6) shown in Figure 3 and Figure 4 is placed over the winding body (1). Its cylinder casing 7 encloses the winding cylinder 1 and together with its flange 3 forms an annular winding chamber. Recesses (8) in the cylinder casing ensure that the other end of the optical fiber can be led out at the desired location. The module cover has a counter ring (9) that prevents the optical fiber from slipping between the two parts. The counter ring can also be designed as a wider surface or be formed by the side part of the module cover itself.

In Figure 5, the cylinder casing has additional locking lugs (11) so that it can be rotatably locked to the winding body. The locking mechanism can also be provided in the area of the hub.

The winding body and the module cover are provided with spokes (5) and hub 10 so that installation in the central axis is possible.

Figure 6 shows the memory module before assembly. The optical fiber (13) is guided through one of the feedthrough openings 7 in the winding body (1) and through one of the recesses 8 in the module cover. The winding body is then inserted into the cylinder cover and the optical fiber is fixed, for example, on the side of the plug (14) by thumb pressure. The free end is now wound up by turning the module cover in the direction of the arrow. The plug-side part of the optical fiber can also be wound up by turning the other part. The cylinder cover has locking lugs (12) with which it can be attached to an assembly. Central fastening with the help of a screw or a press fit is also possible.

Claims (6)

GR 97 G 2S36 Protection claims 1. Storage module for an optical waveguide (13) with a narrow cylindrical winding body (1), characterized in that the winding body (1) has a winding cylinder (2) which is delimited on one side by a circular flange (3) which has at least one feedthrough opening (4), that a module cover (6) is provided which comprises the winding cylinder (2) and the flange (3) of the winding body (1) and has at least one recess (8) in its casing (7), and
that the winding body (1) and the module cover (6) can be rotated relative to one another, whereby the optical waveguide (13) is wound up. 2. Memory module according to claim 1,
characterized in that a locking device (11) is provided, by means of which the winding body (1) rotatably locks into the module cover (6). 3. Storage module according to claim 1 or claim 2, characterized in that the module cover (6) has several recesses (8) in its cylinder jacket (7). 4. Memory module according to claim 3,
characterized in that the module cover (6) has a plurality of through openings (4) in its cylinder jacket (7). 5. Memory module according to one of the preceding claims, characterized in that mounting locking devices (12) are provided for fastening to an assembly. GR 97 G 2836 6. Storage module according to one of the preceding claims, characterized in that the winding body (1) and the module cover (6) can be fixed to one another in a non-rotatable manner.