JPS628003Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Technical field of the invention A light source and a detector are connected to both ends of the manufactured optical fiber in order to test its frequency characteristics, attenuation, etc.

This invention relates to an adapter for coupling the optical fiber and the test element used in such cases.

(b) Purpose of the invention In order to test an optical fiber, it is necessary to attach and detach an adapter to the optical fiber each time a test is performed. For this purpose, an adapter that can be easily attached and detached and that holds the optical fiber in a manner that does not interfere with measurement is required.

This device was devised to meet these demands; it is an adapter in which an optical fiber can be inserted by rotating a lever, and the optical fiber is sandwiched between elastic bodies when the lever is turned back to its original position. It provides:

(c) Example of the invention First, an external view of an example of this invention is shown in Fig. 1. In FIG. 1, 1 is an optical fiber, 8 is a lever, 11 is a fiber holding part, and 12 is a connector part.

FIG. 1 shows a state in which the lever 8 is rotated, the optical fiber 1 is inserted up to the connector part 12, and the optical fiber 1 is held by the fiber holding part 11. . 1st
Since the lever 8 shown in the figure can be operated with one touch as described later, the optical fiber 1 can be easily inserted into or removed from the adapter.

Next, an external view of the main parts of the fiber suppressor 11 is shown in FIG. In FIG. 2, 2 is an elastic body, 3 is a fiber retainer, 4 is an elastic body, 5 is a fiber retainer, 6 is a protrusion, 7 and 9 are rotating shafts, and 10 is a spring.

The elastic bodies 2 and 4 shown in FIG. 2 are made of elastic material such as rubber or plastic, and are attached to the fiber retainers 3 and 5, respectively.

The shaft 7 has a protrusion 6 for rotating the fiber retainer 5.
At the same time, the lever 8 shown in FIG. 1 is attached to the tip of the shaft 7. Therefore, rotating the lever 8 causes the shaft 7 to rotate.

The shaft 9 rotatably holds the fiber holder 5, and the spring 10 presses the fiber holder 5 against the fiber holder 3 so that the elastic body 2 and the elastic body 4 are brought into pressure contact with each other by the elasticity of the spring 10.

FIG. 2 shows a state in which by rotating the shaft 7 in the direction of the arrow, the protrusion 6 rotates the fiber retainer 5 against the elasticity of the spring 10, opening the space between the elastic bodies 2 and 4. . In this state, the optical fiber 1 can be passed between the elastic bodies 2 and 4 and inserted into the connector portion 12. in this case,
A stopper is attached to the shaft 7 to prevent the shaft 7 from rotating too much.

Next, a diagram of changes in FIG. 2 is shown in FIG. 3. FIG. 3 shows a state in which the optical fiber 1 has been inserted up to the connector part 12 in FIG. be.

Since the lever 8 only rotates the shaft 7, it requires less rotational force and can be operated with a single touch.

Next, a configuration diagram of the connector section 12 is shown in FIG.
FIG. 4 shows the optical fiber 1 connected to the tip 1 of the connector part 12.
This shows the state in which up to 3 have been inserted. As shown in FIG. 4, the optical fiber 1 inserted up to the tip 13 is connected to a light source and a detector via a connector portion 12.

In this case, the connector part 12 only guides the optical fiber 1, and the fiber holding part 11
The optical fiber 1 is held by the elasticity of the spring 10 and the elasticity of the elastic bodies 2 and 4.

(d) Effects of the invention According to this invention, the optical fiber 1 can be inserted into or removed from the adapter by rotating the lever 8 with a single touch operation. 1 can be easily attached to and detached from the adapter.

Furthermore, since the optical fiber 1 is held between the elastic bodies 2 and 4 by the elasticity of the spring 10, no unreasonable force that would deform the optical fiber 1 is applied, and the measurement of the optical fiber 1 is not hindered. do not have.

[Brief explanation of the drawing]

Figure 1 is an external view of the embodiment according to this invention, Figure 2
The figure is an external view of the main part of the fiber holding part 11,
This figure is a variation of FIG. 2, and FIG. 4 is a configuration diagram of the connector 12. 1... Optical fiber, 2... Elastic body, 3... Fiber suppressor, 4... Elastic body, 5... Fiber suppressor,
6...Protrusion, 7...Shaft, 8...Lever, 9
... Shaft, 10 ... Spring, 11 ... Fiber holding part, 12 ... Connector part, 13 ... Tip.

Claims (1)

[Claims for Utility Model Registration] A fiber retainer 3 to which an elastic body 2 is attached, a fiber retainer 5 to which an elastic body 4 is attached, a shaft 7 with a rotating protrusion 6 of the fiber retainer 5, and a lever for rotating the shaft 7. 8, a shaft 9 that rotatably holds the fiber retainer 5, and a spring 10 that presses the elastic body 2 and the elastic body 4, and by rotating the lever 8, the protrusion 6 moves the fiber retainer 5 to the fiber retainer 3. the optical fiber 1 from between the elastic body 2 and the elastic body 4.
The optical fiber adapter is characterized in that the protrusion 6 is separated from the fiber holder 5 by returning the rotation of the lever 8, and the optical fiber 1 is sandwiched between the elastic body 2 and the elastic body 4 by the elasticity of the spring 10.