KR20220107198A - Fiber Optic Tools - Google Patents

Abstract

The present invention relates to a base portion 11, an arm portion 12 extending from the base portion, a base blade portion 13 provided in the base portion, and an arm blade portion provided in the arm portion and facing the base blade portion ( 14) and a guide portion 17 provided on the base portion and including a pair of guide walls facing each other, wherein the guide portion is provided with a glass fiber covering between the pair of guide walls 15a and 15b. Through the fiber, the optical fiber is formed to be able to guide between the base blade part 13 and the arm blade part 14, at least a part of the arm part 12 is formed by an elastic member, and the base blade part 13 A tool for an optical fiber (1) capable of removing the coating by drawing the optical fiber with the optical fiber interposed therebetween by the arm blade portion (14).

Description

Fiber Optic Tools

The present disclosure relates to tools for optical fibers.

This application claims the priority based on Japanese Patent Application No. 2019-217959 of the application on December 2, 2019, and uses all the content described in this application.

A tool for removing the coating of an optical fiber is known. For example, in Patent Document 1, a pair of clamping portions sandwiching an optical fiber core wire, and a pair of resin fiber contact portions provided on opposite surfaces of the clamping portion, respectively, are provided, and the optical fiber core wire is connected at the fiber contact portion. An optical fiber coating removal jig capable of removing the coating of an optical fiber core wire by pulling out the optical fiber core wire from the sandwiched state is described.

Further, Patent Document 2 discloses a coating removal tool having a base portion and a cover portion, overlapping the cover portion and the base portion via an optical fiber to remove the optical fiber coating, and a base blade portion and a cover portion provided in the base portion. A coating removal tool is described which has a cover blade provided therein, a base portion has a first V groove for clamping an optical fiber, and a cover portion has a second V groove for clamping an optical fiber.

Japanese Patent Laid-Open No. 2014-66864 Japanese Patent Laid-Open No. 2018-28628

A tool for an optical fiber according to an aspect of the present disclosure,

base and

an arm portion extending from the base portion;

a base blade part installed on the base part;

an arm blade part installed on the arm part and facing the base blade part;

It is installed on the base portion and has a guide portion including a pair of guide walls facing each other,

The guide part is formed to be able to guide the optical fiber between the base blade part and the arm blade part through an optical fiber covered with a glass fiber between the pair of guide walls,

At least a portion of the arm portion is formed by an elastic member,

The coating can be removed by drawing the optical fiber with the optical fiber interposed therebetween by the base blade portion and the arm blade portion.

1 is a perspective view showing a first surface side of a tool for an optical fiber according to an embodiment of the present disclosure;
Fig. 2 is a plan view showing the first surface side of the optical fiber tool shown in Fig. 1;
Fig. 3 is a side view of the optical fiber tool shown in Fig. 1;
Fig. 4 is a cross-sectional view when the optical fiber tool is cut along the line AA in Fig. 2 and viewed from the direction of the arrow.
Fig. 5 is a cross-sectional view when the optical fiber tool is cut along the line BB in Fig. 2 and viewed from the direction of the arrow.
Fig. 6 is a cross-sectional view when the optical fiber tool is cut along the line CC of Fig. 2 and viewed from the direction of the arrow.
Fig. 7 is a cross-sectional view when the optical fiber tool is cut along the line DD in Fig. 2 and viewed from the direction of the arrow.
Fig. 8 is a diagram showing an example of use in the case where the optical fiber tool shown in Fig. 1 is used for a coating removal operation of an optical fiber.
Fig. 9 is a perspective view showing the second surface side of the tool for optical fibers shown in Fig. 1;
Fig. 10 is a plan view of the second surface side of the optical fiber tool shown in Fig. 9;
Fig. 11 is a diagram showing an example of use when the optical fiber tool shown in Fig. 9 is used at the time of the glass fiber cutting operation.
Fig. 12 is a diagram showing an example of use when the optical fiber tool shown in Fig. 9 is used for the operation of inserting a glass fiber into an optical connector.

[Problem to be solved by the present disclosure]

In the coating removal jig described in Patent Document 1, there is no invention of suppressing the displacement of the optical fiber during the coating removal operation. There exists a possibility that the removal of a coating|coating may become incomplete, or a glass fiber may be damaged.

On the other hand, although the coating removal tool described in patent document 2 has a V-groove which suppresses the position shift of an optical fiber, since it removes a coating|cover by opening/closing of a cover part, there existed room for improvement from a viewpoint of workability|operativity.

An object of the present disclosure is to provide a tool for an optical fiber capable of suppressing position shift of an optical fiber during a coating removal operation and improving workability.

[Effect of the present disclosure]

According to the structure of the said indication, the position shift of the optical fiber at the time of the operation|work of a coating removal can be suppressed, and workability|operativity can be improved.

[Description of embodiment of the present disclosure]

First, embodiments of the present disclosure will be listed and described.

A tool for an optical fiber according to an aspect of the present disclosure,

base and

an arm portion extending from the base portion;

a base blade part installed on the base part;

an arm blade part installed on the arm part and facing the base blade part;

It is installed on the base portion and has a guide portion including a pair of guide walls facing each other,

The guide part is formed to be able to guide the optical fiber between the base blade part and the arm blade part through an optical fiber covered with a glass fiber between the pair of guide walls,

At least a portion of the arm portion is formed by an elastic member,

The coating can be removed by drawing the optical fiber with the optical fiber interposed therebetween by the base blade portion and the arm blade portion.

According to this structure, the position shift of the optical fiber at the time of the operation|work of coating removal can be suppressed, and workability|operativity can be improved.

The optical fiber tool,

At least in the vicinity of the base blade part, it is preferable that the bottom surface between the pair of guide walls is inclined so as to become higher as it approaches the base blade part side.

According to this configuration, for example, since the bottom surface between the pair of guide walls has an inclination, the optical fiber is gently guided to the region between the base blade portion and the arm blade portion (hereinafter also referred to as "blade portion region"). can do. In addition, when the optical fiber is guided along an inclination, the presence of the guide wall makes it difficult for the optical fiber to fall out from the blade region.

The optical fiber tool,

In the end portions of the pair of guide walls on the side of the base blade portion, the distance between the pair of guide walls is preferably 250 µm or more and shorter than the lengths of the base blade portion and the arm blade portion.

According to this configuration, for example, since the length between the guide walls at the end of the arm blade portion is large compared to the outer diameter of the optical fiber, not only near the center of the blade area but also other parts of the blade area. By guiding the optical fiber, it becomes easy to remove the coating in other parts. As a result, it is possible to suppress the local deterioration of each blade portion, thereby improving the durability. In addition, it is also possible to form the blade portion with an inexpensive material depending on the required durability.

The optical fiber tool,

Further comprising a contact member provided on at least one of the base portion and the arm portion,

Preferably, the abutment member abuts against a predetermined member opposing the abutment member when the displacement amount of the arm portion exceeds a predetermined amount.

According to this configuration, for example, when the coating is removed, it is possible to prevent excessive pressure from being applied to the optical fiber. As a result, it is possible to reduce the possibility that the optical fiber is broken.

The optical fiber tool,

A pair of protective walls that are erected from the base part and face each other via the arm part are further provided,

When the arm portion is projected toward the protection wall from the opposite direction of the pair of protection walls, the arm portion is preferably located within a range in which the protection wall exists.

According to this configuration, it is possible to prevent, for example, during storage or transport of the optical fiber tool, that an unnecessary thing is sandwiched in the blade region, or that an unnecessary force is applied to the arm and the tool is damaged.

The optical fiber tool,

On a second surface of the base portion opposite to the first surface, which is a surface on the side on which the arm portion is present,

a first groove portion capable of positioning the optical fiber in the short-side direction of the base portion;

Preferably, a collision wall capable of positioning the optical fiber in the long-side direction of the base portion is provided.

According to this configuration, for example, it can be used not only as a tool for removing the coating but also as a tool for managing the length of the optical fiber in the cutting operation of the glass fiber after removing the coating of the optical fiber. That is, since two types of work can be performed with one tool, workability can be improved further.

The optical fiber tool,

On a second surface of the base portion opposite to the first surface, which is a surface on the side on which the arm portion is present,

a mounting part capable of attaching an optical connector;

In a state in which the optical connector is attached to the mounting portion, it is preferable to include a second groove portion capable of positioning the optical fiber in the short side direction of the base portion.

According to this configuration, for example, it can be used not only as a tool for removing the coating, but also as a tool for guiding the optical fiber when inserting the glass fiber after removing the coating of the optical fiber into the optical connector. That is, since two types of work can be performed with one tool, workability can be improved further.

The optical fiber tool,

On a second surface of the base portion opposite to the first surface, which is a surface on the side on which the arm portion is present,

a mounting part capable of attaching an optical connector;

and a second groove portion capable of positioning the optical fiber in a short-side direction of the base portion in a state in which the optical connector is attached to the mounting portion;

It is preferable that the said 1st groove part and the said 2nd groove part are formed in the same straight shape.

According to this configuration, for example, since three types of work can be performed with one tool, workability can be further improved. Moreover, since the 1st groove part and the 2nd groove part are formed in the same straight shape, manufacture becomes easy and the size reduction of a tool is also attained. In addition, at least one of the first groove portion and the second groove portion may be made to function in each of the cutting operation and the insertion operation.

The optical fiber tool,

It is preferable that it is an integrally molded article by resin.

According to this configuration, for example, since there is no need to combine a plurality of parts to create a tool at the time of work, workability can be improved.

[Details of embodiment of the present disclosure]

(tool for optical fiber)

Hereinafter, an example of embodiment of the tool for optical fiber which concerns on this indication is demonstrated, referring drawings. In addition, in the following description, also in different drawings, the same code|symbol is attached|subjected to the same or equivalent element, and overlapping description is abbreviate|omitted as appropriate.

Note that, in the following description, phrases such as "forward", "backward", "left", "right", "upward", and "downward" may be used, but these directions are explained It is a relative direction set for convenience. These directions are based on each direction shown in FIG. 1, and are also shown in each other figure. In addition, in the following description, "front-back direction" is a direction including "forward direction" and "rear direction". "Left-right direction" is a direction including "Left direction" and "Right direction". "Up and down" is a direction including "up" and "down". In addition, in this specification, not only the case where "the same" is strictly the same, but also the case where the difference between both is small enough and it evaluates as substantially the same is included.

The optical fiber tool according to the present embodiment has a function as a tool for removing the coating of an optical fiber, a function as an auxiliary tool for an optical fiber cutting operation, and a function as a tool for connecting an optical fiber and an optical connector. . The function as a coating removal tool can be realized, for example, by a structure formed on the first surface side of the tool for optical fiber. Further, the function as an auxiliary tool for the cutting operation and the function as the tool for the insertion operation can be realized, for example, by a structure formed on the second surface side, which is a surface opposite to the first surface side of the optical fiber tool.

(Configuration of the first surface side of the optical fiber tool)

First, with reference to FIGS. 1-7, the structure of the 1st surface side of the tool for optical fibers is demonstrated. 1 is a perspective view showing a first surface 10 side of a tool 1 for an optical fiber according to an embodiment of the present disclosure. FIG. 2 is a plan view showing the first surface 10 side of the tool 1 for optical fibers shown in FIG. 1 . 3 : is a side view of the tool 1 for optical fibers shown in FIG. 4 is a cross-sectional view when the optical fiber tool 1 is cut along the line A-A in FIG. 2 and the cut optical fiber tool 1 is viewed from the arrow direction shown along the line A-A. Fig. 5 is a cross-sectional view of the optical fiber tool 1 cut along the line B-B in Fig. 2, and the cut optical fiber tool 1 is viewed from the arrow direction shown on the line B-B. Fig. 6 is a cross-sectional view of the optical fiber tool 1 cut along the line C-C in Fig. 2 when viewed from the direction of the arrow shown along the line C-C. Fig. 7 is a cross-sectional view when the optical fiber tool 1 is cut along the line D-D in Fig. 2 and the cut optical fiber tool 1 is viewed from the arrow direction shown along the line D-D.

1 to 7 , on the first surface 10 side of the optical fiber tool 1, a base portion 11, an arm portion 12, a base blade portion 13, and an arm A blade portion 14, a guide portion 17, a pair of protective walls 18, a first space 21 for a holder, a first rib 22a, and a second rib 22b are provided. have. It is preferable that the tool 1 for optical fibers is an integrally molded article by resin, for example.

The base part 11 is a base which supports various structures, such as the arm part 12 and guide walls 15a and 15b, in the 1st surface 10 side. Although the shape of the base part 11 is not specifically limited, In the example of this embodiment, it has a rectangular shape elongate in the front-back direction.

As shown in FIG. 4, the arm part 12 is provided so that it may extend upward from the base part 11, and may also extend toward a forward direction. In addition, as shown in FIG. 2, the arm part 12 is formed in the U-shape when seen from the upward side. In other words, the arm portion 12 has a structure in which two arms extending from the base portion 11 are connected from the front side. Although there is no restriction|limiting in particular as a material of the arm part 12, At least a part of the arm part 12 is formed with the material which can elastically deform.

As shown in FIG. 6 , the base blade part 13 is provided in the base part 11 . The arm blade part 14 is provided in the arm part 12 . The base blade part 13 and the arm blade part 14 are provided along the left-right direction, and are specifically provided on the line C-C of FIG.

The blades of the base blade part 13 face upward, the blades of the arm blade part 14 face downward, and the blades of each other face each other. In the area of the blade part between the base blade part 13 and the arm blade part 14, the glass fiber is applied to the arm part 12 through an optical fiber covered with a coating (hereinafter, simply referred to as "optical fiber"). By applying a force from the direction side, the arm 12 is elastically deformed to approach the base 11 , and the optical fiber is sandwiched between the base blade 13 and the arm blade 14 . From that state, it is possible to remove the coating by drawing the optical fiber in the rear direction. Further, when the application of force to the arm portion 12 is stopped, the arm portion 12 returns to its original position. The distance between the base blade portion 13 and the arm blade portion 14 is not particularly limited as long as the state in which the optical fiber is sandwiched by a necessary and sufficient amount within the range in which the arm portion 12 is elastically deformable is realized. The distance between the base blade unit 13 and the arm blade unit 14 can be appropriately determined according to the diameter of the optical fiber to be removed.

Both ends of the base blade part 13 in the left-right direction protrude slightly upward from the center part of the base blade part 13. As shown in FIG. With this configuration, the center portion of each of the base blade portion 13 and the arm blade portion 14 leaves a slight gap so that they do not contact each other. Thereby, it can avoid that a blade directly contacts the glass fiber part contained in the coating part at the time of coating-removing. The gap between the gaps, that is, the amount of protrusion upward of both ends of the base blade unit 13 in the left-right direction can be appropriately determined according to the diameter of the optical fiber to be removed. In addition, instead of the base blade part 13, you may make the both ends in the left-right direction of the arm blade part 14 protrude. The material of the base blade part 13 and the arm blade part 14 is not particularly limited, and may be made of metal or resin.

Further, as shown in FIG. 7 , the base 11 is provided with two first ribs (contacting members) 22a , and the arm 12 is provided with two second ribs (contacting members). (22b) is installed. The first rib 22a and the second rib 22b are provided along the front-rear direction so as to be orthogonal to the line D-D of FIG. 2 on the front side of the base blade portion 13 and the arm blade portion 14, have. Each of the first ribs 22a and each of the second ribs 22b face each other.

When the optical fiber is interposed between the base blade part 13 and the arm blade part 14, when the amount of displacement in the downward direction of the arm part 12 exceeds a predetermined amount, the opposing first rib 22a and Abutment of the second rib 22b limits the amount of displacement in the downward direction. In addition, the limitation of the amount of displacement may be realized by only one of the first rib 22a and the second rib 22b. That is, when the amount of displacement in the downward direction of the arm portion 12 exceeds a predetermined amount without providing the first rib 22a, the second rib 22b and a predetermined member (eg, the base portion) (11)) may be in contact. Further, when the amount of displacement of the arm portion 12 in the downward direction exceeds a predetermined amount without providing the second rib 22b, the first rib 22a and a predetermined member (eg, the arm portion) (12)) may be in contact.

The guide portion 17 is formed in the vicinity of the base blade portion 13 and the arm blade portion 14 and on the rear side. The guide portion 17 has a pair of guide walls 15a and 15b facing each other, and an inclined surface 16 formed between the guide walls 15a and 15b. The guide portion 17 guides the optical fiber to the blade portion region between the base blade portion 13 and the arm blade portion 14 via the optical fiber between the guide wall 15a and the guide wall 15b. made possible.

The guide walls 15a and 15b are located between the two arms of the arm portion 12 . Guide walls 15a and 15b are erected from the base 11 along the front-rear direction. Moreover, at least in the vicinity of the base blade part 13, it is preferable that the distance between the guide wall 15a and the guide wall 15b becomes narrow as it approaches the base blade part 13 side.

Moreover, as shown in FIG. 6, the distance d1 between the guide wall 15a and the guide wall 15b in the edge part of the base blade part 13 side of the guide walls 15a and 15b. is shorter than the length d2 of the base blade portion 13 and the arm blade portion 14 . Although there is no restriction|limiting in particular as length of the distance d1, For example, it is preferable that it is 250 micrometers or more, and it is more preferable that it is 500 micrometers or more.

The height of the guide wall 15a is not particularly limited. For example, the height of the front end of the guide wall 15a is higher than the height of the lower end of the arm blade portion 14. it is preferable The height of the guide wall 15b is also the same as that of the guide wall 15a. With this configuration, it is easy to guide the optical fiber to the blade region. In addition, in this specification, "height" means a position in the vertical direction.

At least in the vicinity of the base blade part 13, the inclined surface 16 is inclined so that it may become high as it approaches the base blade part 13 side. The height of the rear end of the inclined surface 16 is lower than, for example, the height of the upper end of the base blade portion 13 . It is preferable that the height of the inclined surface 16 approaches the height of the edge part of the upper direction of the base blade part 13 as it goes from a rear direction side to a front direction side, for example.

A pair of protective walls 18 are erected from the base 11 so as to face each other via the arm 12 . Specifically, each of the protective walls 18 is provided at a position corresponding to at least the arm portion 12 among the left and right outer edges of the base portion 11 .

4 and 5, when compared at the same position in the front-back direction, the height of the protective wall 18 is higher than the height of the arm part 12. As shown in FIG. In other words, when the arm part 12 is projected toward each protective wall 18 from the direction (left-right direction) in which the pair of protective walls 18 oppose, the arm part 12 is each protective wall 18 . It is located within the existing range.

The first space 21 for the holder is formed in the vicinity of the guide portion 17 and on the rear side. The first space 21 for the holder has a pair of first guide walls 19a and 19b for the holder and a first impact wall 20 which are opposed to each other. The first space 21 for the holder is a space for guiding the optical fiber holder 32 (refer to Fig. 8), which will be described later.

The first guide walls 19a and 19b for holders are erected from the base 11 along the front-rear direction. The 1st collision wall 20 is erected from the base part 11 along the left-right direction. Moreover, the 1st collision wall 20 is provided in the vicinity of the edge part on the forward direction side of the 1st guide walls 19a and 19b for holders. The first space 21 for holders is a space surrounded by three first guide walls 19a and 19b for holders and the first collision wall 20 . The shape and size of the first space 21 for the holder can be appropriately determined according to the shape and size of the optical fiber holder 32 .

(Example of use as a tool for removing the coating)

Next, a method of using the optical fiber tool 1 at the time of the optical fiber coating removal operation will be described. FIG. 8 is a diagram showing an example of use when the optical fiber tool 1 shown in FIG. 1 is used for the optical fiber 33 coating removal operation.

In Fig. 8, the optical fiber cable 31 is, for example, a cable in which a tension member (not shown) and the optical fiber 33 are covered with a sheath. The optical fiber holder 32 is provided with a through hole (not shown) into which the optical fiber cable 31 can be inserted, for example, and can be fixed with the optical fiber cable 31 inserted into the through hole. . The optical fiber 33 is drawn out from the optical fiber cable 31 . The optical fiber 33 is formed by coating a glass fiber formed of, for example, quartz glass or the like with an ultraviolet curable resin or the like.

At the time of the coating removal operation, first, the optical fiber 33 is pulled out from the tip of the optical fiber cable 31, the optical fiber 33 is protruded from the optical fiber holder 32, and the optical fiber cable 31 is removed. It is fixed to the optical fiber holder (32). Next, the optical fiber holder 32 is positioned between the first guide walls 19a and 19b for the holder, and is moved from the rear side to the front side while making contact with the bottom surface of the first space 21 for the holder. , collide with the first impact wall 20 . During this series of operations, the optical fiber 33 moves between the guide walls 15a and 15b along the inclined surface 16 , and the blade region between the base blade portion 13 and the arm blade portion 14 . lead to In this state, a force is applied to the arm part 12 from the upward side, the optical fiber 33 is sandwiched by the base blade part 13 and the arm blade part 14, and the optical fiber 33 is pulled out further backward. Thus, it is possible to remove the coating.

In addition, by setting the distance between the first guide walls 19a and 19b for the holder to a length enough to allow the optical fiber holder 32 to move in the left and right direction to some extent, not only in the vicinity of the center of the blade region, It becomes easy to guide the optical fiber 33 also to the other part of the blade part area|region.

In addition, the tool 1 for optical fibers can also perform a coating removal operation without using the optical fiber holder 32 . In that case, it is sufficient to simply guide the optical fiber 33 drawn out from the optical fiber cable 31 to the blade region by the guide portion 17 . In the case of carrying out the coating removal operation without using the optical fiber holder 32, for example, instead of the first space 21 for the holder, a space corresponding to the shape and width of the optical fiber cable 31 may be provided. good night.

(Configuration of the tool for the optical fiber on the second surface side)

Next, with reference to FIG. 9 and FIG. 10, the structure of the 2nd surface side of the tool 1 for optical fiber is demonstrated. FIG. 9 is a perspective view showing the second surface 40 side of the tool 1 for optical fibers shown in FIG. 1 . FIG. 10 is a plan view of the second surface side of the tool 1 for optical fibers shown in FIG. 9 . Moreover, as shown in FIG. 3, the 2nd surface 40 is a surface on the opposite side to the 1st surface 10. As shown in FIG.

9 and 10, on the second surface 40 side of the optical fiber tool 1, a base 11, a first groove 41a, a second groove 41b, A second space 44 for a holder, a locking piece 45, a space 52 for an optical connector, a step 53, and third guide walls 54a and 54b for a holder are provided.

The base part 11 is a base which supports various structures also in the 2nd surface 40 side. The first groove portion 41a and the second groove portion 41b are grooves formed in the base portion 11 . The first groove portion 41a is formed from the rear side end of the base portion 11 to the second space for the holder located on the forward direction side of the side end. The width (length in the left-right direction) of the first groove portion 41a is, for example, equal to or slightly larger than the width of the optical fiber cable 31 . The second groove portion 41b is formed so as to extend in the front-rear direction in the vicinity of the center of the base portion 11 . The width of the second groove portion 41b is, for example, equal to or slightly larger than the width of the optical fiber cable 31 .

The 1st groove part 41a and the 2nd groove part 41b are formed in the same straight shape. In addition, the bottom surface of the 1st groove part 41a and the bottom surface of the 2nd groove part 41b have the same position in an up-down direction. At least one of the first groove portion 41a and the second groove portion 41b has a base portion ( 11) is involved in positioning of the optical fiber 33 in the short-side direction (left-right direction). In addition, for example, when not providing the 2nd space 44 for holders, the 1st groove part 41a and the 2nd groove part 41b may be connected, and you may form as one groove|channel.

The 2nd space 44 for holders is provided between the 1st groove part 41a and the 2nd groove part 41b so that it may connect with the 1st groove part 41a. The second space 44 for the holder has a pair of second guide walls 42a and 42b for the holder and a second impact wall 43 which are opposed to each other. The second space 44 for the holder is a space for guiding the optical fiber holder 32 during the glass fiber cutting operation.

The 2nd guide walls 42a and 42b for holders are erected from the bottom face of the base part 11 along the front-back direction. The 2nd collision wall 43 is erected from the bottom surface of the base part 11 along the left-right direction. Moreover, the 2nd collision wall 43 is connected with the 1st groove part 41a, It passes through the 2nd collision wall 43 from the 1st groove part 41a, and reaches the 2nd space 44 for a holder. It is possible. The 2nd space 44 for holders is a space surrounded by the 2nd guide walls 42a and 42b for holders, and the 2nd collision wall 43 in three rooms. The shape and size of the second space 44 for the holder can be appropriately determined according to the shape and size of the optical fiber holder 32 .

The locking piece 45 engages with a predetermined portion of the optical fiber holder 32 in a state in which the optical fiber holder 32 is disposed in the second space 44 for the holder, and the optical fiber holder 32 . It is possible to lock the

The space 52 for optical connectors is provided at the end of the base part 11 on the forward direction side. The optical connector space 52 is a space formed by the mounting portions 51a, 51b, 51c and 51d erected from the base 11, and is a space in which the optical connector 34 can be mounted. The structure of the mounting portions 51a, 51b, 51c and 51d is not particularly limited, and may be appropriately determined according to the shape of the optical connector to be mounted.

Step 53 is a flat portion provided so as to extend in the left and right directions from both ends of the second groove portion 41b in the upward direction. Further, third guide walls 54a and 54b for holders are provided at the ends on the left and right sides of the step 53, respectively. The step 53 and the third guide walls 54a and 54b for the holder function as rails for guiding the optical fiber holder 32 during the connection operation between the glass fiber and the optical connector.

The distance between the third guide walls 54a and 54b is shorter on the front side than on the rear side. On the omnidirectional side, the distance between the third guide walls 54a and 54b is equal to, for example, the width of the optical fiber holder 32 .

(Example of use as a tool for cutting work)

Next, the usage method of the tool 1 for optical fibers at the time of the cutting operation of a glass fiber is demonstrated. Fig. 11 is a diagram showing an example of use in the case where the optical fiber tool 1 shown in Fig. 9 is used at the time of a glass fiber cutting operation. In Fig. 11, for example, the rear side of the optical fiber 33 is a glass fiber from which the coating has been removed.

At the time of a cutting operation, first, the optical fiber holder 32 is pushed into the 2nd space 44 for a holder from the upward side of the 2nd space 44 for holders. In this state, the optical fiber holder 32 abuts against the second guide walls 42a and 42b for the holder, and is positioned in the short-side direction. Moreover, even if the optical fiber cable 31 is fitted into the 2nd groove part 41b, it becomes positioning in the short side direction.

Further, in the state in which the optical fiber holder 32 is pushed into the second space 44 for the holder, the optical fiber holder 32 abuts against the second collision wall 43, and is positioned in the longitudinal direction (front-to-back direction). it becomes a decision Further, in this state, the optical fiber holder 32 is also locked by the locking piece 45 .

As described above, with the optical fiber positioned in the short-side direction and the long-side direction, the glass fiber guided in the first groove portion 41a and protruding to the outside of the optical fiber tool 1 is cut with a predetermined cutting tool. By cutting using it, it becomes easy to adjust a glass fiber to an appropriate length.

(Example of use as a tool used for insertion work)

Next, the usage method of the tool 1 for optical fibers at the time of the operation|work of inserting a glass fiber into an optical connector is demonstrated. FIG. 12 is a diagram showing an example of use when the optical fiber tool 1 shown in FIG. 9 is used for the operation of inserting a glass fiber into the optical connector 34. As shown in FIG. In Fig. 12, for example, the front side of the optical fiber 33 is a glass fiber with the coating removed and cut to a predetermined length.

In the insertion operation, first, the optical connector 34 is attached to the optical connector space 52 . Next, the optical fiber holder 32 is brought into contact with the rear end of the step 53, and the optical fiber cable 31 is inserted into the first groove portion 41a to perform positioning in the short side direction. . Then, from this state, the optical fiber holder 32 is moved forward along the step 53 and the third guide walls 54a and 54b for the holder. Since the distance between the third guide walls 54a and 54b for the holder on the omnidirectional side is the same as the optical fiber holder 32, by moving the optical fiber holder 32 to the omnidirectional side as described above, A more precise positioning occurs in the unilateral direction. As a result, it becomes easy to insert the glass fiber in an appropriate position of the optical connector 34 .

As mentioned above, although this indication was demonstrated with reference to specific embodiment in detail, it is clear for those skilled in the art that various changes and correction can be added without deviating from the mind and range of this invention. In addition, the number, position, shape, etc. of the structural member demonstrated above are not limited to the said embodiment, In implementing this indication, it can change to a suitable number, position, shape, etc..

1: tool for optical fiber 10: first side
11: base part 12: arm part
13: base blade portion 14: arm blade portion
15a, 15b: guide wall 16: inclined plane
17: guide part 18: protective wall
19a, 19b: first guide wall for holder
20: first impact wall 21: first space for holder
22a: first rib 22b: second rib
31: optical fiber cable 32: optical fiber holder
33: optical fiber 34: optical connector
40: second surface 41a: first groove
41b: second groove portion 42a, 42b: second guide wall for holder
43: second impact wall 44: second space for holder
45: locking piece 51a, 51b, 51c, 51d: mounting part
52: space for optical connector 53: step
54a, 54b: third guide wall for holder

Claims (9)

base and
an arm portion extending from the base portion;
a base blade part installed on the base part;
an arm blade part installed on the arm part and facing the base blade part;
It is installed on the base portion and provided with a guide portion including a pair of guide walls facing each other,
The guide part is formed so as to be able to guide the optical fiber between the base blade part and the arm blade part through an optical fiber covered with a glass fiber between the pair of guide walls,
At least a portion of the arm portion is formed by an elastic member,
It is possible to remove the coating by drawing the optical fiber with the optical fiber interposed therebetween by the base blade portion and the arm blade portion.
Tools for optical fibers. The method of claim 1,
At least in the vicinity of the base blade part, the bottom surface between the pair of guide walls is inclined so as to become higher as it approaches the base blade part side.
Tools for optical fibers. 3. The method according to claim 1 or 2,
In the end of the pair of guide walls on the side of the base blade portion, the distance between the pair of guide walls is 250 µm or more, and is shorter than the length of the base blade portion and the arm blade portion.
Tools for optical fibers. 4. The method according to any one of claims 1 to 3,
Further comprising a contact member provided on at least one of the base portion and the arm portion,
The abutment member is configured to abut against a predetermined member opposing the abutment member when the displacement amount of the arm portion exceeds a predetermined amount.
Tools for optical fibers. 5. The method according to any one of claims 1 to 4,
A pair of protective walls that are erected from the base part and face each other via the arm part are further provided,
When the arm portion is projected toward the protection wall from the opposite direction of the pair of protection walls, the arm portion is located within a range in which the protection wall exists.
Tools for optical fibers. 6. The method according to any one of claims 1 to 5,
On a second surface of the base portion opposite to the first surface, which is a surface on the side on which the arm portion is present,
a first groove portion capable of positioning the optical fiber in the short-side direction of the base portion;
and a collision wall capable of positioning the optical fiber in the long side direction of the base part.
Tools for optical fibers. 7. The method according to any one of claims 1 to 6,
On a second surface of the base portion opposite to the first surface, which is a surface on the side on which the arm portion is present,
a mounting part capable of attaching an optical connector;
and a second groove portion capable of positioning the optical fiber in the short side direction of the base portion in a state in which the optical connector is attached to the mounting portion.
Tools for optical fibers. 7. The method of claim 6,
On a second surface of the base portion opposite to the first surface, which is a surface on the side on which the arm portion is present,
a mounting part capable of attaching an optical connector;
and a second groove portion capable of positioning the optical fiber in a short-side direction of the base portion in a state in which the optical connector is mounted on the mounting portion;
The first groove portion and the second groove portion are formed on the same straight line.
Tools for optical fibers. 9. The method according to any one of claims 1 to 8,
An integrally molded product made of resin
Tools for optical fibers.

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