JPS5833523B2 - Optical fiber coating stripper - Google Patents

Description

[Detailed description of the invention] The present invention relates to an optical fiber coating stripper.

Normally, an optical fiber is protected by covering the outer periphery of a fiber wire consisting of a core and a cladding with nylon or the like.

When connecting this optical fiber in the longitudinal direction,
The coating is removed and the fiber strands are connected by heat fusion or the like.

Strippers commonly used to remove coatings include cutters and wire strippers.
The strands of optical fibers are susceptible to external damage, and even the slightest scratch on the surface can cause breakage.

Therefore, great care is required in removing the coating.

However, it is difficult to remove the coating over several lengths without damaging the strands using the above-mentioned stripper.

Therefore, there is a problem in that removing the coating requires skill and cannot be done easily by anyone.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a sheathing stripper that allows even an unskilled person to easily and reliably remove the sheathing of an optical fiber.

The optical fiber sheathing stripper of the present invention has a pair of clamping blocks provided with a groove for clamping the optical fiber and a blade that crosses the groove. At least one pair of guide pins are provided on both sides, the other of the clamping blocks is provided with a guide pin storage hole for storing the guide pins, and the pair of clamping blocks are arranged in a groove-to-groove, blade-to-blade, guide pin-to-guide pin storage hole. It is characterized by facing each other so that they match each other.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

Note that the following explanation is not intended to limit the scope of the present invention.

In the figure, 1 is a coating stripper, and 2 and 3 are a pair of clamping blocks.

The clamping blocks 2 and 3' have semicircular grooves 2 on their mating surfaces 2A and 3A, respectively, for clamping the optical fiber F in the longitudinal direction.
B and 3B are provided.

In this embodiment, the longitudinal groove is a semicircular groove, but the groove is not limited to a semicircle, and may be a V-groove, for example.

These grooves 2B and 3B have a groove diameter that is large enough to form an insertion hole that allows the optical fiber F held between them to be pulled out with a small force when they are aligned facing each other.

In addition, grooves 2B and 3B are provided on the mating surfaces 2A and 3A, respectively.
Grooves 2C and 3C, which are deeper than the grooves 2B and 3B, are provided to cross the grooves.

Metal plates 2D are placed in these grooves 2C and 3C. 3D is embedded in each.

These metal plates 2D and 3D have a notch blade 2 in the center with a radius approximately 0.15 mm larger than the strand radius of the optical fiber F.
It has E t3E.

These metal plates 2D and 3D are one end surface 2F in the longitudinal direction of the clamping blocks 2 and 3.

Screw 2G screwed into the screw hole provided on the 3rd floor.

3G, the centers of the notch blades 2E, 3E are fixed so as to coincide with the center lines of the longitudinal grooves 2B, 3B.

Furthermore, two pairs of guide pins 2H and 2J are provided on the mating surface 2A of the holding block 2, one on each side with a longitudinal groove 2B in between.

The guide pins 2J, 2J on one side of the inner longitudinal groove 2B of these guide pins 2H, 2J are slightly shorter than 2H, 2H.

Guide pins 2 are provided on the mating surface 3A of the clamping block 3 at positions corresponding to the guide pins 2H and 2J provided on the mating surface 2A.
H.

2J storage holes 2K are provided.

A pair of clamping blocks 2 and 3 like this have a side surface 2L.
, 3L are connected by a spring-loaded screw 4, and normally the mating surfaces 2A and 3A are opposed to each other and matched by a spring.

At this time, the longitudinal grooves 2B and 3B, the notch blades 2E and 3E
and each match.

Also, the sides 2L and 3L of the clamping blocks 2 and 3, respectively.
L-shaped handles 5, 5 are attached to each.

In order to remove the coating from the optical fiber F using the optical fiber stripper 1 constructed in this way, the handles 5.5 provided on the clamping blocks 2 and 3 are moved in the direction of the arrow A in FIG. The mating surfaces 2A and 3A are opened as shown in FIG.

The mating surfaces 2 of the clamping blocks 2 and 3 opened in this way
The end of the optical fiber F whose coating is to be removed is fitted into the longitudinal grooves 2B and 3B provided in A t 3 A.

To fit the optical fiber F, it is sufficient to insert the optical fiber F between the guide pins 2H and 2J and release the handles 5 and 5.

The clamping block 2.3 has its mating surfaces 2At3A aligned with each other by a spring attached to the screw 4, thereby clamping the optical fiber.

Optical fiber F fitted between guide pins 2H and 2J
Since it is held by the guide pin 2H22J while the holding block 23 is tightly fitted together, it does not protrude outside the groove.

The optical fiber F clamped by the clamping block 2°3 has a mating surface 2A.

The outer periphery of the coating is cut into a ring shape by the notch blades 2E and 3E provided at 3A.

By pulling out the optical fiber F in the direction of arrow B in FIG. 1, the coating of the optical fiber F is removed.

During this coating stripping, the portions from which the coating is removed are guided by the longitudinal grooves 2B and 3B, so that the coating can be removed in a stable manner without damaging the strands.

As explained above, the optical fiber coating stripping device of the present invention has a pair of clamping blocks, each of which has a groove provided in the longitudinal direction on its mating surface, and one of the clamping blocks has a groove in the longitudinal direction. At least one pair of guide pins are provided on both sides of the groove, and a storage hole that can accommodate the guide pin is provided on the other side, so the optical fiber can be inserted into the clamping block by simply fitting it into the guide pin without protruding from the groove. be held between.

In addition, since the optical fiber held by the holding block can be guided by the groove and pulled out in a straight line, anyone can easily and reliably remove the coating without any special skill required, without damaging the surface of the optical fiber. be able to.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of an optical fiber coating stripper of the present invention, and FIG. 2 is a perspective view showing the inside of the same embodiment. 1... Optical fiber coating stripper, 2, 3...
・・Pinching flock, 2A, 3A・・・・Matching surface, 2
B t 3 B・・・・・・Longitudinal groove, 2E, 3
E: Notched blade.

Claims (1)

[Claims] 1. An optical fiber coating stripping device having a pair of clamping blocks provided with a groove for clamping the optical fiber and a blade that crosses the groove, wherein one of the clamping blocks is provided with at least a pair of guide pins on both sides of the groove. , the other of the clamping blocks is provided with a guide pin storage hole for storing the guide pin, and the pair of clamping blocks are arranged so that they face each other so that grooves and grooves, blades and blades, and guide pins and guide pin storage holes match, respectively. An optical fiber coating stripper characterized by: