JPH0241601Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a fixing device for fixing an adapter to which an optical fiber is connected.

(Prior art) Conventionally, as shown in FIG.
1 was connected to the adapter 22, which was sandwiched between the vertical plate portions 23a of a set of L-shaped fixtures 23, and the horizontal plate portions 23b of the fixtures 23 were fixed to the fixing plate 25 via screws 24. Therefore, a tool for screwing is required, which makes the fixing work troublesome, and there is also the problem that the fixing loosens due to vibration or the like.

(Problems to be Solved by the Invention) In view of the above-mentioned problems, the present invention was devised for the purpose of easily and reliably fixing the adapter of the optical fiber connection part in the desired position without using any tools. It is.

(Means for Solving the Problems) The present invention includes a substrate with numerous protrusions arranged at a fixed pitch, adapter fitting holes that are open on the bottom plate and both sides, and adapter fitting holes that are opened on the bottom plate and both sides. A pair of protrusion fitting holes are provided on both sides of the mating hole, and a fixture is provided at a pitch that is the same as or an integral multiple of the pitch of the protrusions on the substrate, and an adapter connected to an optical fiber is inserted into the adapter fitting hole. In the fitted state, the adapter is fixed to the substrate by pressing the fixture from above the substrate and fitting the protrusions of the substrate into the respective protrusion fitting holes.

(Embodiment) An embodiment of the present invention is shown in FIGS. 1 to 4.

The substrate A is made of resin or rubber, and has a flat plate 1 with numerous protrusions 2 protruding in a diagonal manner. The pitch of 2 is p.

Fixture B is also made of resin or rubber, and has projecting portions 4 on both sides of the lower end of the rectangular parallelepiped main body 3 in the length direction to form an inverted T-shape, and has a flat bottom surface. ing. The main body 3 is provided with adapter fitting holes 7 that are open on both sides in the width direction and the bottom surface for fitting an adapter 6 to which an optical fiber 5 is connected. Matching holes 8 are provided perpendicularly through the lower surface.

The pitch P of the pair of protrusion fitting holes 8 provided in each projecting portion 4 is twice the pitch P of the protrusion 2, and the pitch P between the protrusion 2 and the protrusion fitting hole 8 is twice that of the protrusion 2.
The respective diameters are such that the protrusion 2 is fitted into the protrusion fitting hole 8 only when the fixture B is pressed against the substrate A.

Note that 9 in the figure indicates a connector attached to the end of the optical fiber 5 to be connected.

Then, connect each connector 9 attached to the end of each optical fiber 5 to be connected to the adapter 6,
This adapter 6 is fitted into the adapter fitting hole 7 of the fixture B. In this state, fixing tool B
When each protrusion fitting hole 8 is pressed against the tip of the protrusion 2 of the substrate A, the protrusion 2 of the substrate A is fitted into the protrusion fitting hole 8 of the fixture B, and the optical fiber 5
The adapter 6 connected to the adapter 6 is fixed at a desired position on the board A. In this embodiment, since the pitch P of the pair of protrusion fitting holes 8 is twice the pitch P of the protrusion 2, each protrusion fitting hole Since the lower end of the adapter 6 is supported by another protrusion 2 between the set of protrusions 2 fitted with the adapter 8, the fixed state of the adapter 6 to the substrate A is stabilized.

Moreover, as shown in FIGS. 2 and 3,
When the protrusion 2 is fitted into the protrusion fitting hole 8 and the fixture B is fixed to the board A, the fixture B is supported by the four surrounding protrusions 2, so it is securely fixed to the board A. Therefore, fixture B will not fall even if it receives external force.

In addition, in order to securely fix the fixture B and the protrusion 2, as shown in FIG. Alternatively, as shown in FIG. 7B, a plurality of tongues 14 may be provided at the lower end of the protrusion fitting hole 8, and the tongues 14 may be brought into elastic contact with the protrusion 2.

Also shown in FIG. 6 is another embodiment of the fixture B'. This fixture B' is provided with a deformable plate 10 facing upward on each overhanging part 4 of the fixture B, and the lower end of the fixture B' The protrusion fitting hole 8 and two sets of grooves 11, 1 opened on the lower surface inside the protrusion fitting hole 8.
2 is provided. Then, when fixing fixture B' to board A or removing it,
When a force is applied to the deformable plate 10 in the direction of arrow Q, the portion of each protrusion fitting hole 8 of fixture B' is slightly elastically deformed in the direction of arrow R. Therefore, the work of fixing or removing the fixture B' becomes easier.

Although the substrate A of the above embodiment has numerous protrusions 2 provided on the plate 1 in a diagonal manner at a constant pitch, they may also be provided in a grid pattern. The pitches of the countless protrusions 2 may be made partially different.

(Effects) As described above, according to the present invention, it is possible to easily fix the adapter of the optical fiber connection part in the desired position without using any tools, and moreover, it is possible to securely fix the adapter without loosening even due to vibration etc. This makes it possible to improve the efficiency of the adapter fixing work.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a fixture B and the connecting part of the optical fiber, and FIG. 2 is a perspective view of the adapter 6 of the connecting part of the optical fiber 5 fixed to the substrate A via the fixture B. , FIG. 3 is a plan view of a state in which a plurality of adapters 6 are fixed to the board A;
The figure is a cross-sectional view taken along the line -- in FIG. 3, and FIGS.
3. A partially enlarged cross-sectional view of the fixed state of the fixture B provided with the tongue piece 14 and the protrusion 2, FIG. 6A is a partially cutaway perspective view of another fixture B', and FIG. ,
FIG. 7 is a front view of a conventional adapter fixing device. Explanation of symbols of main parts: A: Substrate, B: Fixture, 2: Projection, 5: Optical fiber, 6: Adapter, 7: Adapter fitting hole, 8: Projection fitting hole.

Claims (1)

[Scope of utility model registration request] Numerous protrusions 2 are provided at a constant pitch on the substrate A, and an adapter fitting hole 7 that is open at the bottom and both sides is provided, and a pair of protrusions are fitted on both sides of the adapter fitting hole 7. The mating hole 8 consists of a fixture B provided at the same pitch as the pitch of the projections 2 of the substrate A or an integral multiple thereof, and the adapter 6 to which the optical fiber 5 is connected is fitted into the adapter fitting hole 7. In this state, press the fixture B from above the board A and fit the protrusions into the fitting holes 8 of the board A.
An adapter fixing device for optical fiber connection, characterized in that an adapter 6 is fixed to a substrate A by fitting the protrusions 2 of the above.