JPH0670684B2 - Optical fiber cutter - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an optical fiber cutting device, and more particularly, to post-processing after cutting easily and safely without touching cutting waste of an optical fiber core. The present invention relates to a desk-top type optical fiber core cutting device that can be used.

[Conventional technology]

A conventional optical fiber cutting device is described in, for example, Proceedings No.250 of the National Conference of the Communication Division of the Institute of Electronics and Communication Engineers of 1986, and FIG. 7 shows an optical fiber cutting device of this type.

In FIG. 7, reference numeral 1 denotes a processing table on which fixed gripping bases 2A and 2B are provided in a protruding manner, and a depression member 2C is provided with a pillow member 4 capable of contacting the lower surface of the optical fiber core wire 3.
5A and 5B are grip clamps that are openably and closably attached to fixed grip bases 2A and 2B via hinges (not shown), and 6A and
6B is an elastic member disposed in each of the gripping clamps 5A and 5B, 7A and 7B are elastic members disposed in each of the fixed gripping bases 2A and 2B, and 8 is a blade for cutting the core wire 3.

In the optical fiber cutting device configured as described above, the fiber core wire 3 set on the fixed gripping bases 2A and 2B is held by the gripping clamps 5A and 5B, and the upper surface of the core wire 3 is held by the blade 8. A fine scratch is made on the upper surface of the pillow member 4, and the pillow member 4 is pushed up from below, so that tensile stress and bending stress are simultaneously generated in the scratch generation portion to perform cutting. However, after cutting, post-processing is performed such that the cord scraps 3S generated after pulling up the gripping clamps 5A and 5B upwards are removed by hand or removed by tweezers, a cotton swab or the like.

[Problems to be solved by the invention]

Therefore, during such post-processing of cutting waste, the core waste 3S may adhere to the elastic member 6B of the grip clamp 5B, or the core waste 3S may be broken during the processing and stick to the operator's skin. In addition, the scattering of the fragments sometimes poses a hazard to the people in the vicinity, resulting in difficulty and danger of workability.

SUMMARY OF THE INVENTION An object of the present invention is to provide an optical fiber cutting device, which pays attention to the above-mentioned problems and, in order to solve the problems, safely and surely post-processes the core wire cutting chips.

[Means for solving problems]

In order to achieve such an object, according to the present invention, an optical fiber line is placed on a fixed holding base of a processing table, and an end portion side of the optical fiber line, which is a cutting waste, can be held between the fixed holding base. In an optical fiber cutting device that has an upright clamp means, which is required to raise the clamp means after the optical fiber line is cut to remove the cutting chips from the fixed gripping base, the end of the fixed gripping base on the optical fiber line side. The optical fiber cable is supported from below with the fixed gripping table, and the movable gripping table is movable in the direction of the optical fiber cable. The tilting table is mounted on the processing table and tilts in conjunction with the moving operation of the movable gripping table. And a means for abutting the cutting waste on the movable gripping table and removing the cutting scraps.

[Action]

According to the present invention, when the cutting of the core wire is completed, the clamp means holding the cutting waste is flipped up,
Since the cutting debris removing means is located above the cutting debris, if the cutting debris is attached to the clamping means, the cutting debris is brought into contact with the removing means and dropped onto the elastic member. After that, the cutting debris is moved while being placed on the elastic member by the movement operation of the movable gripping base along the core line direction, and when the cutting debris is moved by a predetermined distance, the cutting debris engaged by the dead weight of the removing means is scrapped. It can be dropped into the reservoir, and the cutting waste can be post-processed safely and reliably without the need for manual labor.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail and specifically with reference to the drawings.

FIG. 1 shows an embodiment of the present invention. Where 12 is the guide shaft
A movable gripping base movably supported by 13A and 13B in a direction parallel to the core wire 3, a support spring 14 for the movable gripping base 12,
Reference numeral 17B is an elastic member fitted and provided on the movable holding table 12. Therefore, in this example, the elastic member 17B is fixed to the fixed gripping table 2
It is provided so as to straddle B, and therefore also serves as an elastic member provided on the fixed gripping base 2B. When the movable gripping base 12 moves backward as shown in FIG.
B also moves with the movable gripper 12.

Reference numeral 15 is an L-shaped clamp provided as a cutting waste removing means provided adjacent to the grip clamp 5B, and a blade-shaped first protrusion 16A, a second protrusion 16B, and a guide member 16C are provided on the lower surface side of the L-shaped clamp 15. Further, a rod-shaped stopper member 16D is provided so as to project. Then, here, the processing table 1 of the L-shaped clamp 15
The end 15A on the side attached to is formed in a tapered surface as shown in FIG. 3, and when the L-shaped clamp 15 is opened at a maximum angle (hereinafter referred to as an offset angle) θ ° as shown by a broken line, The end portion 15A of the tapered surface abuts the side surface of the table 1 so that the open state is maintained. The offset angle θ ° is 90 ° or less, and is set smaller than the opening angle of the grip clamp 5B. In the set state of the L-shaped clamp 15 indicated by the solid line, the guide member 16C of the clamp 15 as shown in the figure.
Is kept in contact with the movable gripping table 12. Furthermore,
In FIG. 1, reference numeral 18 denotes a cord waste storage case provided on the processing table 1 so as to be drawn out.

Next, the relative positional relationship between the L-shaped clamp 15 and the fixed gripping base 2B and the movable gripping base 12 will be described with reference to FIGS. 4 and 5.

FIG. 4 shows a state in which the cutting operation is completed and the movable gripping table 12 is not moved yet and is kept at a position in contact with the fixed gripping table 2B. At this time, the L-shaped clamp 15 is kept open by its own weight while the guide member 16C is in contact with the movable holding table 12 as shown in FIG. Further, here, the length of the cord waste protruding from the fixed gripping base 2B to the recess 2C is R, the width of the fixed gripping base 2B is M, the width of the movable gripping base 12 is N, and further,
In the L-shaped clamp 15, the dimension from the tip side to the first protrusion 16A is Q, and the length of the guide member 16C from the tip is L.
In case of, Q ≒ R, L ≒ M + N, and Q is several mm from N
It is set to be short.

Therefore, when the movable gripping base 12 is moved to the right from the state shown in FIG. 4 and the state of FIG. 5 is passed even a little, the end of the core wire scrap 3S on the cut side is fixed to the fixed gripping base 2B. When the guide member 16C is dislocated from the movable gripping base 12 at the same time as the position is released, and the locked state is released, the L-shaped clamp is released.
15 is tilted by its own weight, and is kept flat when its stopper member 16D comes into contact with the upper surface of the table 1.

Next, the processing operation when the core wire scrap 3S is processed by tilting the L-shaped clamp 15 to such a flat state will be described with reference to FIGS. 6A to 6E.

First, FIG. 6A shows the movement operation of the movable gripping base 12 in the state where the core scrap 3S does not exist, in which the movable gripping base 12 moves from the position shown at the left end to the position shown at the right end. Is possible. Therefore, when the core wire waste 3S is sufficiently short as shown in FIG. 6B, the elastic member 17B is caused by the first protrusion 16A of the L-shaped clamp 15 which has been tilted to a flat state.
The core wire scrap 3S held above is flipped up and falls as shown at the left end thereof. Further, even if such a timing is deviated and remains on the elastic member 17B as shown in the center, it is removed in the process of moving the movable gripping table 12 to the right end position. It can be dropped (see FIG. 1) and stored.

Furthermore, as shown in FIG. 6C, in the case of a slightly long scrap 3S, the core scrap 3S repelled by the first protrusion 16A is about to fall to the second stage at the next stage shown in the center. Then, the movable gripping table 12 falls by the time it reaches the right end. Further, in the case of the extremely long waste 3S, it is broken by being bent as shown in FIGS. 6D and 6E, and is broken into pieces and falls into the storage case 18, respectively.

In the above description, the case where the cut portion and the portion that becomes the core wire waste is not coated with the fiber tape of the multi-core fiber is described, but the fiber is a single fiber and the coating is performed. Needless to say, the same effect can be obtained by the optical fiber cutting device of the present invention even in the case where there is no such situation.

〔The invention's effect〕

As described above, according to the present invention, the L-shaped clamp is operated by its own weight and is provided on the lower surface side of the L-shaped clamp only by moving the movable gripper in a direction perpendicular to the cutting direction. The first projection and the second projection allow cutting waste to be dropped and stored in the storage case below from the movable gripping table, and the optical fiber can be safely and securely handled without directly touching it or using special equipment. It has become possible to carry out the treatment of cutting waste.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of the configuration of the optical fiber cutting device of the present invention, FIG. 2 is a perspective view showing a state in which the movable holding table is moved, and FIG. Explanatory drawing showing that the mold clamp is kept in an open state, FIGS. 4 and 5 are explanatory views of relative positions of the L-shaped clamp and the movable gripping base in an offset state and a set state, FIGS. 6A to 6E. FIGS. 7A and 7B are schematic views each showing a state in which core wastes of various lengths are processed by the optical fiber cutting device of the present invention, and FIG. 7 is a perspective view showing an example of the configuration of a conventional optical fiber cutting device. 1 ... Processing table, 2A, 2B ... Fixed gripping base, 3 ... Optical fiber core wire, 3S ... Core wire scrap, 4 ... Pillow member, 5A, 5B ... Gripping clamp, 6A, 6B, 7A, 7B, 17B ... Elastic member , 8 ... Blade, 12 ... Movable gripping base, 13A, 13B ... Guide shaft, 14 ... Spring, 15 ... L-shaped clamp, 15A ... End, 16A, 16B ... Projection, 16C ... Guide member, 16D ... Stopper member.

Claims (5)

[Claims] 1. An upside down clamp means capable of placing an optical fiber line on a fixed holding base of a processing table and holding an end side of the optical fiber line, which is a cutting waste, with the fixed holding base. In the optical fiber cutting device, comprising: after cutting the optical fiber line, erecting the clamping means to remove the cutting scraps from the fixed gripping base, the optical fiber line end portion of the fixed gripping base. A movable gripping base that supports the optical fiber line from below together with the fixed gripping base and is movable in the direction of the optical fiber line, and a tilting mount on the processing table, and a moving operation of the movable gripping base. And a means for abutting against the cutting waste on the movable gripping table and removing the cutting scraps, the optical fiber cutting device. 2. The optical fiber cutting device according to claim 1, wherein the movable gripping base has an elastic member extending up to the fixed gripping base, and the cutting is performed via the elastic member. An optical fiber cutter characterized in that debris is retained. 3. The optical fiber cutting device according to claim 1 or 2, wherein the removing means has a higher angle than the upright angle of the removing means before interlocking with the moving operation of the movable gripping table. An optical fiber cutting device which is small and is held at an angle of 90 degrees or less. 4. The optical fiber cutting device according to any one of claims 1 to 3, wherein the removing means contacts at least one cutting scrap on the movable gripping table. An optical fiber cutting device having a section, wherein the protrusion contacts the cutting waste and causes the cutting waste to drop downward when the movable gripping table moves. 5. The optical fiber cutting device according to any one of claims 1 to 4, further comprising a case for accommodating the cutting waste below a moving range of the movable holding table. An optical fiber cutting device.