JPH0334721Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical fiber cutter that cuts the end face of an optical fiber into a mirror surface in an optical fiber connection.

Generally, when connecting optical fibers, after removing the secondary coating and buffer layer, the primary coating is removed using paper, absorbent cotton, gauze, etc. impregnated with an organic solvent. After this operation, the optical fiber is cut, but at this time, static electricity is generated due to the above-mentioned extraction, and the optical fiber from which the coating has been removed becomes electrically charged, making it easier for dust to adhere to the surface of the optical fiber. This dust deteriorates the alignment accuracy of the optical fibers in the connection and increases the connection loss. It also damages the optical fiber and causes deterioration in the strength of the connection part. Furthermore, in the case of a high-density cored wire having a structure in which multiple optical fibers are coated together, the charged optical fibers repel each other, causing the optical fibers to be disrupted and cut all at once, as shown in optical fiber cored wire A shown in Figure 1. etc. work efficiency will be significantly reduced. Conventional cutters had the above-mentioned drawbacks because no measures were taken against this static electricity.

The present invention is characterized in that an optical fiber cutting machine uses a plate-shaped elastic body made of a conductive polymer material as a member for supporting the optical fiber, and its structure is made of a conductive polymer material. A plate in which a plate-shaped elastic body made of It comprises a fixing member and a blade made of a highly hard material and provided above the optical fiber disposed on the plate-like elastic body of the plate.

With the above configuration, the present invention makes it possible to cut the optical fiber and remove static electricity from the optical fiber charged by the primary coating removal operation.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 2 is a diagram showing the state in which the cutter according to the present invention is used, and in this figure, reference numeral 1 denotes a conductive elastic plate made of conductive rubber, and 2 is a plate-shaped elastic body fixed to the lower surface of the elastic plate 1. It is a flexible metal plate. 3 is another metal plate, which is bent into a U-shape when viewed in side cross section. This metal plate 3 has one end positioned above one end of the plate-like elastic body 1, and the other end is fixed to the lower surface of one end of the metal plate 2. A fixing member 4 made of a rubber plate is fixed to the lower surface of one end of this metal plate 3, and this fixing member 4 can be brought into contact with the plate-like elastic body 1 by bending the metal plate 3. It's summery. Also 5
is a blade made of a highly hard material.

The optical fiber cutter of this embodiment is constructed as described above, and in order to cut the optical fiber using this, as shown in the figure, first cut the optical fiber from which the coating of the optical fiber core wire 6 has been removed. 7 (bare optical fiber) is placed on the plate-like elastic body 1, the tip of this optical fiber 7 is held between the plate-like elastic body 1 and the fixing member 4, and the optical fiber 7 is placed on the plate-like elastic body 1. The blade body 5 is brought into contact with the optical fiber 7 which is being bent, and then the plate-shaped elastic body 1 and the metal plate 2 are bent downward together with the optical fiber core wire 6 to cut the optical fiber 7 by brittle fracture.
The optical fiber 7 is formed with a mirror-like end surface. When cutting the optical fiber in this way,
A plate-shaped elastic body 1 in which the optical fiber 7 is made of conductive rubber.
, static electricity is removed through the elastic plate 1, the metal plate 2, and the human body. Therefore, when connecting optical fibers, dust is less likely to adhere to the optical fibers, and the work can be carried out smoothly.
In addition, in the case of high-density fibers, disturbances in the arrangement of the optical fibers due to static electricity are further removed, making the batch cutting process smoother.

In addition, in the above example, an example was shown in which conductive rubber was used as the conductive plate-shaped elastic body, but as the conductive plate-shaped elastic body, a metal sheet is often covered with a conductive polymer material. It may be a plastic with a low Young's modulus containing carbon grains, a rubber or plastic coated with metal by vapor deposition or plating, or the like.

However, even though it is conductive, a metal plate is not suitable because a hard material like a metal plate has a narrow tolerance range for pressure adjustment when bringing the blade into contact with the bare optical fiber, making it impossible to cut it correctly.

As explained above, according to the present invention, by using a plate-like elastic body made of a conductive polymer material to support the optical fiber, it is possible to eliminate the adhesion of dust without adding unnecessary effort to the conventional cutting operation. It is possible to remove static electricity from optical fibers, which causes the optical fibers to become disordered in high-density core wires. Therefore, there is an advantage that work efficiency in optical fiber connection can be significantly improved.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing a state in which bare optical fibers are disarranged due to static electricity, and FIG. 2 is a schematic diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Plate elastic body, 2... Metal plate, 3... Metal plate, 4... Fixed member, 5... Blade body, 6... Optical fiber core wire, 7... Bare optical fiber.

Claims (1)

[Claims for Utility Model Registration] A plate in which a plate-like elastic body made of a conductive polymeric material is attached to a flexible metal plate, and an optical fiber disposed on the plate-shaped elastic body of this plate. A fixing member that works with this plate to sandwich and fix a part of the plate, and a blade made of a high hardness material that is provided above the optical fiber that is placed on the plate-like elastic body of the plate. Equipped with an optical fiber cutting device.