JPS5918417Y2 - Optical fiber cable connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connector for optical fiber cables, and is particularly suitable for butt-connecting a large number of optical fibers at once.

The connector of the present invention is composed of a substrate, a holding plate, and a pair of holding members.

The board is plate-shaped as a whole, and a protrusion with a flat surface is formed in the center, and this protrusion has many grooves cut in parallel to the length of the board. The exposed portions of a large number of optical fibers are inserted and butted against each other.

The holding plate is for pressing the optical fibers that are butted against each other.

The pair of holding members are positioned at both ends of the substrate to hold the non-exited portions of a large number of optical fibers in parallel with each other. The substrate is configured to be slidable in the length direction of the substrate.

When in use, a pair of holding members holding a large number of non-exited optical fibers are positioned at both ends of the board, the outgoing parts of each optical fiber are fitted into the grooves of the board, and the slidable side of the holding member is positioned at both ends of the board. A large number of optical fibers are brought together by sliding them together.

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

FIG. 1 is a perspective view of an optical fiber connector according to the present invention, in which 1 is a plate-shaped substrate, 6 and 7 are holding members located at both ends of this substrate 1, and clamp plates 2 and 4 and a presser. Board 3
, 5, and 8 is a holding plate located at the center of the substrate 1.

This will be explained in more detail with reference to FIG.

That is, the substrate 1 has a protrusion 1a at the center, and a large number of V-shaped grooves 9 parallel to the axial direction are carved on the flat upper surface.

In addition, 11 and 12 are four tapped holes and two through holes formed at both ends of the substrate 1, 13 is a screw hole provided in the above-mentioned protrusion 1a, and 14 is a jig (not shown). ) is a through hole for fixing the substrate 1 to the substrate 1.

The clamp plates 2, 4 are provided with a large number of V-shaped grooves 15, 16 in the axial direction of their upper surfaces into which the non-extracted portions of the optical fibers are inserted.

Note that 17 and 18 are 2 holes formed to sandwich these grooves.
4 tapped holes 19 are formed in each month of the clamp plate 2.
The through holes 20 are four elongated holes formed in each month of the clamp plate 4.

And these screw holes 17, 18, through hole 19, long hole 20
corresponds to the through hole 12 and screw hole 11 described above.

The holding plates 3 and 5 are plate-like bodies with smooth upper and lower surfaces that are placed on the clamp plates 2 and 4, and have through holes 21 and 22 at positions corresponding to the screw holes 17 and 18, and through holes 19 and 19. and long 7L
Through holes 23 and 24 are provided at positions corresponding to 20, respectively.

As shown in FIG. 3, the presser plate 8 has a length equal to that of the protruding portion 1a, and has a tapered cutout near both ends of the lower surface, and has through holes 25 provided at positions corresponding to the screw holes 13.

Next, the order and assembly procedure for connecting optical fibers using each member having such a configuration will be explained with reference to FIGS. 2 and 3.

First, each of the plurality of optical fibers of one optical cable is tapped out, and the unextended portion of each of the tapped out fibers is inserted into the V-shaped groove 15 of the clamp plate 2 so that the tapped portion of each fiber is just from the end of the clamp plate 2. Insert it so that it sticks out.

Next, the holding plate 3 is placed over the clamping plate 2, the screws 26 are screwed into the screws 17 through the through holes 21, and the non-opening portion is inserted between the clamping plate 2 and the holding plate 3 for inspection to form the holding member 6. do.

This holding member 6 is cut using a cutter device that makes the lengths of the fibers even, and placed on the left end of the substrate 1. 9, respectively.

Next, the holding member 6 is fixed onto the substrate 1 by screwing the screw 27 into the tapped hole 11 through 23° 19.

Next, each of the plurality of optical fibers of the other optical cable is tapped out, and the unextended portion of each of the tapped out fibers is inserted into the V-shaped groove 16 of the clamp plate 4 so that the tapped portion of each fiber is just at the end of the clamp plate 4. The presser plate 5 is placed over the clamp plate 4, and the screw 29 is screwed into the tapped hole 18 through the through hole 22.
The holding member 7 is constructed by sandwiching and fixing the non-protruding portion between the holding member 5 and the holding plate 5.

This holding member 6 is applied to a cutter device to align the opening length,
It is placed on the right side end of the substrate 1, and the outlet portions of each fiber are inserted into the grooves 9 of the substrate 1, respectively.

Next, position the presser plate 8 on the protrusion 1a and tighten the screw 28.
Pass it through the through hole 25 and lightly screw it into the screw hole 13 to temporarily secure it.

Next, the screws 30 are inserted into the elongated holes 24 and 20 and lightly screwed into the screw holes 11 to temporarily fix the holding member 7 to the substrate 1.

In this way, the screw 30 is inserted into the screw 1 through the elongated hole 24.20.
1, the holding member 7 can slide left and right on the end of the substrate 1.

At this stage of temporary fixing, the fibers do not need to be butted against each other, but only need to be properly inserted into the V-groove 9.

Finally, the holding member 7 is slid left and right to butt the optical fibers together.

After the butt is completed, the screws 28 are strongly tightened to fix the protruding portion of the holding plate 8, and then the screws 30 are tightened to fix the holding member 7 to the substrate 1, thereby completing the connection work of the optical cables on both sides.

As described above, when connecting multi-core optical fiber cables together on a board, the present invention holds both cables by respective holding members, and allows at least one of the holding members to slide relative to the board. This makes it possible to easily butt connect the optical fibers all at once, which is extremely effective.

Note that in order to ensure the above-mentioned butt adjustment, it is optional to form the presser plate attached to the substrate from a transparent material.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the optical fiber connector according to the present invention, FIG. 2 is an exploded perspective view, and FIG. 3 is a sectional view.

Claims (1)

[Scope of utility model registration request] A substrate that is generally plate-shaped and has a groove formed in its central protrusion in the longitudinal direction into which at least one optical fiber outlet is inserted, and an optical fiber outlet that is inserted into the groove of this substrate. It includes a presser plate that presses, and a pair of holding members that are placed on both ends of the substrate and hold a non-exit portion of at least one optical fiber, and at least one of the holding members holds the length of the substrate. An optical fiber cable connector characterized by being configured to be slidable in the horizontal direction.