CN114746785A - Tool for optical fiber - Google Patents
Tool for optical fiber Download PDFInfo
- Publication number
- CN114746785A CN114746785A CN202080084000.8A CN202080084000A CN114746785A CN 114746785 A CN114746785 A CN 114746785A CN 202080084000 A CN202080084000 A CN 202080084000A CN 114746785 A CN114746785 A CN 114746785A
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- CN
- China
- Prior art keywords
- optical fiber
- base
- arm
- tool
- cutter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000013307 optical fiber Substances 0.000 title claims abstract description 177
- 239000011247 coating layer Substances 0.000 claims abstract description 25
- 239000003365 glass fiber Substances 0.000 claims abstract description 25
- 230000003287 optical effect Effects 0.000 claims description 29
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000010410 layer Substances 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 description 16
- 239000011248 coating agent Substances 0.000 description 14
- 238000000576 coating method Methods 0.000 description 14
- 239000000835 fiber Substances 0.000 description 12
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000005253 cladding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/245—Removing protective coverings of light guides before coupling
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
- G02B6/56—Processes for repairing optical cables
- G02B6/566—Devices for opening or removing the mantle
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
An optical fiber tool (1) is provided with: a base part (11); an arm portion (12) extending from the base portion; a base cutter unit (13) provided to the base unit; an arm cutter portion (14) provided on the arm portion and facing the base cutter portion; and a guide portion (17) which is provided on the base portion and includes a pair of guide walls facing each other, the guide portion being formed so that an optical fiber in which a glass fiber is covered with a coating layer can be passed between the pair of guide walls (15a, 15b), the optical fiber can be guided between the base cutter portion (13) and the arm cutter portion (14), at least a part of the arm portion (12) is formed of an elastic member, and the coating layer can be removed by pulling out the optical fiber in a state in which the optical fiber is sandwiched between the base cutter portion (13) and the arm cutter portion (14).
Description
Technical Field
The present invention relates to an optical fiber tool.
The present application claims priority based on japanese patent application No. 2019-217959, which was filed on 12/2/2019, and the entire contents of the description in the application are cited.
Background
Tools for removing the cladding of optical fibers are known. For example, patent document 1 describes an optical fiber coating removal jig which has a pair of clamping portions for clamping an optical fiber core wire and a pair of resin-made optical fiber contact portions provided on the opposite surfaces of the clamping portions, and which is capable of removing a coating of the optical fiber core wire by pulling out the optical fiber core wire from a state in which the optical fiber core wire is clamped by the optical fiber contact portions.
Patent document 1: japanese patent laid-open No. 2014-66864
Patent document 2: japanese patent laid-open publication No. 2018-28628
Disclosure of Invention
An optical fiber tool according to an embodiment of the present invention includes:
a base part;
an arm portion extending from the base portion;
a base cutter portion provided to the base portion;
an arm cutter portion provided on the arm portion and opposed to the base cutter portion; and
a guide portion provided to the base portion and including a pair of guide walls facing each other,
the guide portion is formed so as to be capable of guiding an optical fiber, which is formed by covering a glass fiber with a coating layer, between the pair of guide walls, to a space between the base cutter portion and the arm cutter portion,
at least a portion of the arm portion is formed of an elastic member,
the optical fiber is drawn out with the optical fiber sandwiched between the base cutter portion and the arm cutter portion, whereby the coating layer can be removed.
Drawings
Fig. 1 is a perspective view showing the 1 st surface side of an optical fiber tool according to an embodiment of the present invention.
Fig. 2 is a plan view showing the 1 st surface side of the optical fiber tool shown in fig. 1.
Fig. 3 is a side view of the tool for optical fibers shown in fig. 1.
Fig. 4 is a cross-sectional view of the optical fiber tool cut along line a-a of fig. 2, as viewed in the direction of the arrows.
Fig. 5 is a cross-sectional view of the optical fiber tool cut along line B-B of fig. 2, as viewed in the direction of the arrows.
Fig. 6 is a cross-sectional view of the optical fiber tool cut along the line C-C of fig. 2, as viewed in the direction of the arrows.
Fig. 7 is a cross-sectional view of the optical fiber tool cut along line D-D of fig. 2, as viewed in the direction of the arrows.
Fig. 8 is a view showing an example of use of the optical fiber tool shown in fig. 1 in a coating removal operation of an optical fiber.
Fig. 9 is a perspective view showing the 2 nd surface side of the optical fiber tool shown in fig. 1.
Fig. 10 is a plan view of the 2 nd surface of the optical fiber tool shown in fig. 9.
Fig. 11 is a view showing an example of use of the optical fiber tool shown in fig. 9 in a case where the tool is used for cutting a glass fiber.
Fig. 12 is a diagram showing an example of use in a case where the optical fiber tool shown in fig. 9 is used for an operation of inserting a glass fiber into an optical connector.
Detailed Description
[ problems to be solved by the invention ]
The coating removal jig described in patent document 1 does not consider the positional deviation of the optical fiber at the time of the operation of suppressing the removal of the coating, and there is a possibility that the optical fiber is displaced with respect to the optical fiber contact portion at the time of removing the coating, and the coating cannot be completely removed, or the glass fiber is damaged.
On the other hand, the coating layer removing tool described in patent document 2 has a V-groove for suppressing the positional deviation of the optical fiber, but since the coating layer is removed by opening and closing the lid portion, there is room for improvement from the viewpoint of workability.
The invention aims to provide a tool for an optical fiber, which can inhibit the position deviation of the optical fiber during the coating layer removing operation and improve the operation performance.
[ Effect of the invention ]
According to the above-described configuration of the invention, the positional deviation of the optical fiber during the operation of removing the coating layer can be suppressed, and the operability can be improved.
[ description of embodiments of the invention ]
First, embodiments of the present invention will be described.
An optical fiber tool according to an embodiment of the present invention includes:
a base part;
an arm portion extending from the base portion;
a base cutter portion provided to the base portion;
an arm cutter portion provided on the arm portion so as to face the base cutter portion; and
a guide portion provided on the base portion and including a pair of guide walls facing each other,
the guide portion is formed so as to be capable of guiding an optical fiber, which is formed by covering a glass fiber with a coating layer, between the pair of guide walls, to a space between the base cutter portion and the arm cutter portion,
at least a portion of the arm portion is formed of an elastic member,
the optical fiber is drawn out with the optical fiber sandwiched between the base cutter portion and the arm cutter portion, whereby the clad layer can be removed.
According to this configuration, the positional deviation of the optical fiber during the coating layer removing operation can be suppressed, and the workability can be improved.
The tool for an optical fiber is provided with a tool,
preferably, at least in the vicinity of the base cutter portion, a bottom surface between the pair of guide walls is inclined so as to become higher as approaching the base cutter portion side.
According to this configuration, for example, the bottom surface between the pair of guide walls is inclined, so that the optical fiber can be smoothly guided to the region between the base blade portion and the arm blade portion (hereinafter also referred to as "blade region"). Further, when the optical fiber is guided along the inclination, the optical fiber can be made less likely to be detached from the cutter portion region by the presence of the guide wall.
The tool for an optical fiber is provided with a tool,
preferably, the distance between the pair of guide walls is 250 μm or more at the end portions of the pair of guide walls on the base blade side, and is shorter than the lengths of the base blade portion and the arm blade portion.
According to this configuration, for example, the length between the guide walls at the end on the arm-cutting blade side is longer than the outer diameter of the cladding of the optical fiber, and therefore, the optical fiber is guided not only to the vicinity of the center of the cutting blade region but also to other portions of the cutting blade region, and the cladding is easily removed at the other portions. As a result, local deterioration of each cutter portion can be suppressed, and durability can be improved. Further, the cutter portion can be formed of an inexpensive material in accordance with the required durability.
The tool for an optical fiber is provided with a tool,
it is preferable that the base portion further includes an abutting member provided at least one of the base portion and the arm portion,
the contact member contacts a predetermined member facing the contact member when the displacement amount of the arm portion exceeds a predetermined amount.
According to this structure, for example, excessive pressure can be prevented from being applied to the optical fiber when the clad layer is removed. As a result, the possibility of occurrence of fiber breakage can be reduced.
The tool for an optical fiber is provided with a tool,
preferably, the robot further comprises a pair of protection walls provided upright from the base portion and opposed to each other via the arm portion,
when the arm portion is projected from a direction in which the pair of protection walls face each other toward the protection wall, the arm portion is located within a range in which the protection wall exists.
According to this configuration, for example, when the optical fiber tool is stored or transported, it is possible to prevent an excessive portion from being caught in the cutting blade region or an excessive force from being applied to the arm portion to cause damage.
The tool for an optical fiber is provided with a tool,
preferably, the base portion has a 2 nd surface opposite to a 1 st surface, which is a surface on the side where the arm portion exists, the 2 nd surface including:
a 1 st groove portion capable of positioning the optical fiber in a width direction of the base portion; and
and a collision wall capable of positioning the optical fiber in a longitudinal direction of the base portion.
According to this configuration, for example, not only the tool for removing the coating layer but also the tool for managing the length of the optical fiber in the cutting operation of the glass fiber after the coating layer of the optical fiber is removed can be used. That is, since 2 kinds of work can be performed by one tool, the workability can be further improved.
The tool for an optical fiber is provided with a tool,
preferably, the base portion has a 2 nd surface opposite to a 1 st surface, which is a surface on the side where the arm portion exists, the 2 nd surface including:
a loading unit capable of loading an optical connector; and
and a 2 nd groove section capable of positioning the optical fiber in the width direction of the base section in a state where the optical connector is mounted on the mounting section.
According to this configuration, for example, not only the tool for removing the coating layer but also the tool for guiding the optical fiber when the glass fiber from which the coating layer of the optical fiber is removed is inserted into the optical connector can be used. That is, since 2 kinds of work can be performed by one tool, the workability can be further improved.
The tool for an optical fiber is provided with a tool,
preferably, the base portion has a 2 nd surface opposite to a 1 st surface, which is a surface on the side where the arm portion exists, the 2 nd surface including:
a loading unit capable of loading an optical connector; and
a 2 nd groove part capable of positioning the optical fiber in the width direction of the base part in a state where the optical connector is mounted on the mounting part,
the 1 st groove and the 2 nd groove are formed on the same straight line.
According to this configuration, for example, 3 kinds of work can be performed by one tool, and thus the workability can be further improved. Further, since the 1 st groove portion and the 2 nd groove portion are formed in the same straight line, the manufacturing becomes easy, and the tool can be downsized. In addition, at least one of the 1 st groove portion and the 2 nd groove portion can be made to function during the cutting operation and the insertion operation, respectively.
The tool for an optical fiber is provided with a tool,
preferably, the molded article is an integrally molded article made of a resin.
According to this configuration, for example, it is not necessary to assemble a plurality of members and manufacture a tool or the like at the time of work, and therefore workability can be improved.
[ details of embodiments of the present invention ]
(tool for optical fiber)
Next, an example of an embodiment of an optical fiber tool according to the present invention will be described with reference to the drawings. In the following description, the same or corresponding elements are denoted by the same reference numerals even in different drawings, and overlapping description is omitted as appropriate.
In the following description, terms such as "front direction", "rear direction", "left direction", "right direction", "upper direction", and "lower direction" are used in some cases, but these directions are set as relative directions for convenience of description. These directions are based on the respective directions shown in fig. 1, and are also shown in the other respective drawings. In the following description, the "front-rear direction" is a direction including the "front direction" and the "rear direction". The "left-right direction" is a direction including the "left direction" and the "right direction". The "up-down direction" is a direction including an "up direction" and a "down direction". In the present specification, the term "equal" includes not only a case where the two are exactly equal but also a case where the difference between the two is sufficiently small and the two can be evaluated to be substantially equal.
The optical fiber tool according to the present embodiment has a function as a tool for removing a coating layer of an optical fiber, a function as an auxiliary tool for cutting an optical fiber, and a function as a tool for connecting an optical fiber and an optical connector. The function of the tool for removing the coating layer can be realized by, for example, a structure formed on the 1 st surface side of the tool for optical fiber. The function of the auxiliary tool for the cutting operation and the function of the tool for the insertion operation can be realized by a structure formed on the 2 nd surface, which is the surface of the tool for the optical fiber opposite to the 1 st surface, for example.
(Structure on the 1 st surface side of optical fiber tool)
First, the structure of the 1 st surface side of the optical fiber tool will be described with reference to fig. 1 to 7. Fig. 1 is a perspective view showing a 1 st surface 10 side of an optical fiber tool 1 according to an embodiment of the present invention. Fig. 2 is a plan view showing the 1 st surface 10 side of the optical fiber tool 1 shown in fig. 1. Fig. 3 is a side view of the optical fiber tool 1 shown in fig. 1. Fig. 4 is a cross-sectional view of the optical fiber tool 1 cut along the line a-a of fig. 2, and the cut optical fiber tool 1 is viewed from the direction of the arrow indicated by the line a-a. Fig. 5 is a cross-sectional view of the optical fiber tool 1 cut along line B-B of fig. 2, and the cut optical fiber tool 1 is viewed from the direction of the arrow shown along line B-B. Fig. 6 is a cross-sectional view of the optical fiber tool 1 cut along the line C-C of fig. 2, and viewed from the direction of the arrow indicated by the line C-C. Fig. 7 is a cross-sectional view of the optical fiber tool 1 cut along line D-D of fig. 2, as viewed in the direction of the arrow indicated by line D-D.
As shown in fig. 1 to 7, a base portion 11, an arm portion 12, a base cutter portion 13, an arm cutter portion 14, a guide portion 17, a pair of protection walls 18, a 1 st space 21 for a holder, a 1 st rib 22a, and a 2 nd rib 22b are provided on the 1 st surface 10 side of the optical fiber tool 1. The optical fiber tool 1 is preferably an integrally molded product made of resin, for example.
The base portion 11 is a base for supporting various structures such as the arm portion 12 and the guide walls 15a and 15b on the 1 st surface 10 side. The shape of the base portion 11 is not particularly limited, but in the present embodiment, the base portion has a rectangular outer shape that is long in the front-rear direction.
As shown in fig. 4, the arm portion 12 is provided to extend upward from the base portion 11 and to extend forward. As shown in fig. 2, the arm portion 12 is formed in a U shape when viewed from above. In other words, the arm portion 12 is a configuration in which 2 arms extending from the base portion 11 are connected on the front direction side. The material of the arm portion 12 is not particularly limited, but at least a part of the arm portion 12 is formed of an elastically deformable material.
As shown in fig. 6, the base cutter portion 13 is provided to the base portion 11. The arm cutter portion 14 is provided to the arm portion 12. The base cutter portion 13 and the arm cutter portion 14 are provided in the left-right direction, specifically, on the line C-C of fig. 2.
The cutters of the base cutter portion 13 face upward, the cutters of the arm cutter portion 14 face downward, and the cutters face each other. In the cutter portion region between the base cutter portion 13 and the arm cutter portion 14, an optical fiber (hereinafter, also simply referred to as "optical fiber") in which a glass fiber is covered with a coating layer is passed through, and a force is applied to the arm portion 12 from above, whereby the arm portion 12 is elastically deformed to approach the base portion 11, and the optical fiber is sandwiched between the base cutter portion 13 and the arm cutter portion 14. From this state, the optical fiber is pulled out in the backward direction, and the clad layer can be removed. Further, if the force application to the arm portion 12 is stopped, the arm portion 12 returns to the original position. The distance between the base cutter portion 13 and the arm cutter portion 14 is not particularly limited as long as it can achieve a state in which the optical fiber is sandwiched by a necessary and sufficient amount within a range in which the arm portion 12 is elastically deformable. The distance between the base cutter portion 13 and the arm cutter portion 14 can be appropriately determined according to the diameter of the optical fiber to be coated.
Both ends in the left-right direction of the base cutter portion 13 slightly protrude upward from the central portion of the base cutter portion 13. With the above-described structure, the base cutter unit 13 and the arm cutter unit 14 can be kept away from each other with a slight gap in the central portion thereof. Therefore, when the coating layer is removed, the cutter can be prevented from directly contacting the glass fiber part included in the coating part. The interval of the gap, that is, the amount of protrusion of the base cutter portion 13 in the upward direction at both ends in the left-right direction can be appropriately determined according to the diameter of the optical fiber to be coated. Instead of the base cutter portion 13, both ends of the arm cutter portion 14 in the left-right direction may be protruded. The material of the base cutter portion 13 and the arm cutter portion 14 is not particularly limited, and may be made of metal or resin.
As shown in fig. 7, the base portion 11 is provided with 21 st ribs (contact members) 22a, and the arm portion 12 is provided with 2 nd ribs (contact members) 22 b. The 1 st and 2 nd ribs 22a and 22b are provided in the front-rear direction so as to be orthogonal to the line D-D in fig. 2 on the front side of the base cutter portion 13 and the arm cutter portion 14. The 1 st and 2 nd ribs 22a and 22b are opposed to each other.
When the amount of displacement of the arm 12 in the downward direction exceeds a predetermined amount when the optical fiber is sandwiched between the base cutter portion 13 and the arm cutter portion 14, the opposing 1 st rib 22a and 2 nd rib 22b abut against each other, thereby restricting the amount of displacement in the downward direction. Further, the restriction of the displacement amount may be achieved only by either one of the 1 st rib 22a and the 2 nd rib 22 b. That is, the 1 st rib 22a may not be provided, and the 2 nd rib 22b may abut against a predetermined member (for example, the base portion 11) when the amount of displacement of the arm portion 12 in the downward direction exceeds a predetermined amount. Further, the 2 nd rib 22b may not be provided, and the 1 st rib 22a may abut against a predetermined member (for example, the arm portion 12) when the amount of displacement of the arm portion 12 in the downward direction exceeds a predetermined amount.
The guide portion 17 is formed in the vicinity of the base cutter portion 13 and the arm cutter portion 14 and on the rear side. The guide portion 17 has a pair of guide walls 15a, 15b opposed to each other and a slope 16 formed between the guide walls 15a and 15 b. The guide portion 17 is formed to pass the optical fiber between the guide wall 15a and the guide wall 15b, and is capable of guiding the optical fiber to a blade portion region between the base blade portion 13 and the arm blade portion 14.
The guide walls 15a and 15b are located between 2 arms of the arm portion 12. The guide walls 15a and 15b are provided upright from the base portion 11 along the front-rear direction. Further, it is preferable that the distance between the guide wall 15a and the guide wall 15b becomes narrower as approaching the base cutter portion 13 side, at least in the vicinity of the base cutter portion 13.
As shown in fig. 6, the distance d1 between the guide wall 15a and the guide wall 15b at the base cutter portion 13-side end of the guide walls 15a and 15b is shorter than the length d2 of the base cutter portion 13 and the arm cutter portion 14. The length of the distance d1 is not particularly limited, but is, for example, preferably 250 μm or more, and more preferably 500 μm or more.
The height of the guide wall 15a is not particularly limited, but for example, the height of the end portion on the front side of the guide wall 15a is preferably higher than the height of the end portion on the lower side of the arm cutter portion 14. The height of the guide wall 15b is also the same as that of the guide wall 15 a. According to the above configuration, the optical fiber can be easily guided to the cutter portion region. In the present specification, the term "height" refers to a position in the vertical direction.
The inclined surface 16 is inclined so as to be higher at least in the vicinity of the base cutter portion 13 as approaching the base cutter portion 13 side. The height of the rear end of the inclined surface 16 is lower than the height of the upper end of the base cutter portion 13. The height of the slope 16 is preferably closer to the height of the end portion on the upper side of the base blade 13, for example, as going from the rear side to the front side.
A pair of protection walls 18 are provided upright from the base portion 11 so as to face each other via the arm portion 12. Specifically, each of the protection walls 18 is provided at a position corresponding to at least the arm portion 12, out of the outer edge on the left direction side and the outer edge on the right direction side of the base portion 11.
As can be seen from fig. 4 and 5, when the positions in the front-rear direction are compared with each other, the height of the protection wall 18 is higher than the height of the arm 12. In other words, when the arm 12 is projected toward each of the protection walls 18 from a direction (left-right direction) in which the pair of protection walls 18 face each other, the arm 12 is located within a range in which each of the protection walls 18 exists.
The retainer 1 st space 21 is formed in the vicinity of the guide portion 17 and on the rear side. The retainer 1 st space 21 has a pair of retainer 1 st guide walls 19a and 19b and a 1 st collision wall 20 opposed to each other. The holder-use first space 21 is a space for guiding an optical fiber holder 32 (see fig. 8) described later.
The retainer 1 st guide walls 19a and 19b are provided to stand from the base portion 11 in the front-rear direction. The 1 st collision wall 20 is provided upright from the base portion 11 in the left-right direction. The 1 st collision wall 20 is provided in the vicinity of the end portions of the 1 st cage guide walls 19a and 19b on the forward side. The retainer 1 st space 21 is a space surrounded by three sides by the retainer 1 st guide walls 19a and 19b and the 1 st collision wall 20. The shape and size of the holder-use 1 st space 21 can be appropriately determined in accordance with the shape and size of the optical fiber holder 32.
(example of use as a tool for removing coating layer)
Next, a method of using the tool 1 for an optical fiber in the optical fiber coating layer removing operation will be described. Fig. 8 is a view showing an example of use of the optical fiber tool 1 shown in fig. 1 in a coating removal operation of the optical fiber 33.
In fig. 8, the optical cable 31 is, for example, a cable in which a tension member (not shown) and an optical fiber 33 are covered with a sheath. The optical fiber holder 32 has, for example, a through hole (not shown) into which the optical fiber cable 31 can be inserted, and can be fixed in a state in which the optical fiber cable 31 is inserted into the through hole. The optical fiber 33 is pulled out from the optical cable 31. The optical fiber 33 is formed by coating a glass fiber made of, for example, quartz glass with an ultraviolet curable resin or the like.
In the coating removal operation, first, the optical fiber 33 is pulled out from the distal end of the optical fiber cable 31, and the optical fiber cable 31 is fixed to the optical fiber holder 32 so that the optical fiber 33 protrudes from the optical fiber holder 32. Next, the fiber holder 32 is positioned between the holder 1 st guide walls 19a and 19b, and moved from the rear side to the front side while being in contact with the bottom surface of the holder 1 st space 21, and collides with the 1 st collision wall 20. During this series of operations, the optical fiber 33 moves along the inclined surface 16 between the guide walls 15a and 15b, and is guided to the blade portion region between the base blade portion 13 and the arm blade portion 14. In this state, a force is applied to the arm portion 12 from above, and the optical fiber 33 is sandwiched by the base cutter portion 13 and the arm cutter portion 14 and pulled out in the backward direction, whereby the clad can be removed.
Further, by setting the distance between the holder-use 1 st guide walls 19a and 19b to a length to slightly move the optical fiber holder 32 in the left-right direction, it is easy to guide the optical fiber 33 not only to the vicinity of the center of the cutter portion region but also to guide the optical fiber 33 to other portions of the cutter portion region.
Further, the optical fiber tool 1 can perform the coating removal operation without using the optical fiber holder 32. In this case, only the optical fiber 33 pulled out from the optical fiber cable 31 may be guided to the cutter portion region by the guide portion 17. In addition, when the coating removal work is performed without using the optical fiber holder 32, for example, a space corresponding to the shape and width of the optical fiber cable 31 may be provided instead of the holder-use 1 st space 21.
(construction of the 2 nd surface side of the optical fiber tool)
Next, the structure of the 2 nd surface side of the optical fiber tool 1 will be described with reference to fig. 9 and 10. Fig. 9 is a perspective view showing the 2 nd surface 40 side of the optical fiber tool 1 shown in fig. 1. Fig. 10 is a plan view of the 2 nd surface of the optical fiber tool 1 shown in fig. 9. As shown in fig. 3, the 2 nd surface 40 is a surface opposite to the 1 st surface 10.
As shown in fig. 9 and 10, the optical fiber tool 1 is provided with a base portion 11, a 1 st groove portion 41a, a 2 nd groove portion 41b, a holder 2 nd space 44, a locking piece 45, an optical connector space 52, a step 53, and holder 3 rd guide walls 54a and 54b on the 2 nd surface 40 side.
The base portion 11 is a base for supporting various structures also on the 2 nd surface 40 side. The 1 st groove portion 41a and the 2 nd groove portion 41b are grooves formed in the base portion 11. The 1 st groove portion 41a is formed from the rear direction side end of the base portion 11 to the 2 nd space for the retainer located on the front direction side of the side end. The width (length in the left-right direction) of the 1 st groove portion 41a is, for example, equal to or slightly larger than the width of the optical fiber cable 31. The 2 nd groove portion 41b is formed to extend in the front-rear direction near the center of the base portion 11. The width of the 2 nd groove 41b is also equal to or slightly larger than the width of the optical fiber cable 31, for example.
The 1 st groove portion 41a and the 2 nd groove portion 41b are formed in the same straight line. The bottom surfaces of the 1 st groove 41a and the 2 nd groove 41b are located at the same vertical position. At least one of the 1 st groove portion 41a and the 2 nd groove portion 41b is involved in positioning the optical fiber 33 in the width direction (left-right direction) of the base portion 11 at the time of cutting operation of the glass fiber or at the time of connecting operation of the glass fiber to an optical connector 34 (see fig. 12) described later. For example, when the holder 2 nd space 44 is not provided, the 1 st groove portion 41a and the 2 nd groove portion 41b may be connected to form one groove.
The holder 2 nd space 44 is provided to connect the 1 st groove portion 41a between the 1 st groove portion 41a and the 2 nd groove portion 41 b. The retainer 2 nd space 44 has a pair of retainer 2 nd guide walls 42a and 42b and a 2 nd collision wall 43 opposed to each other. The holder 2 nd space 44 is a space for guiding the optical fiber holder 32 during the glass fiber cutting operation.
The retainer 2 nd guide walls 42a and 42b are provided to stand from the bottom surface of the base portion 11 in the front-rear direction. The 2 nd collision wall 43 is provided upright from the bottom surface of the base portion 11 in the left-right direction. The 2 nd collision wall 43 is connected to the 1 st groove portion 41a, and can reach the 2 nd space 44 for the retainer from the 1 st groove portion 41a through the 2 nd collision wall 43. The retainer 2 nd space 44 is a space surrounded by three sides by the retainer 2 nd guide walls 42a and 42b and the 2 nd collision wall 43. The shape and size of the holder 2 nd space 44 can be determined appropriately according to the shape and size of the optical fiber holder 32.
The locking piece 45 can engage with a predetermined portion of the optical fiber holder 32 to lock the optical fiber holder 32 in a state where the optical fiber holder 32 is disposed in the holder 2 nd space 44.
The optical connector space 52 is provided at the end of the base portion 11 on the front side. The optical connector space 52 is a space formed by the mounting portions 51a, 51b, 51c, and 51d provided upright from the base portion 11, and is a space in which the optical connector 34 can be mounted. The configuration of the loading portions 51a, 51b, 51c, and 51d is not particularly limited as long as it is appropriately determined according to the shape of the optical connector to be loaded.
The step 53 is a flat portion extending in the left-right direction from both end portions of the 2 nd groove portion 41b on the upper side. Further, holder 3 rd guide walls 54a and 54b are provided at left and right end portions of the step 53, respectively. The step 53 and the holder 3 rd guide walls 54a and 54b function as guide rails for guiding the optical fiber holder 32 during the connection operation between the glass fiber and the optical connector.
The distance between the 3 rd guide walls 54a and 54b is shorter on the front side than on the rear side. On the front direction side, the distance between the 3 rd guide walls 54a and 54b is, for example, equal to the width of the fiber holding frame 32.
(example of use as a tool for cutting work)
Next, a method of using the tool 1 for optical fiber in the operation of cutting glass fiber will be described. 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 in the operation of cutting a glass fiber. In fig. 11, for example, the rear side of the optical fiber 33 is a glass fiber with a coating removed.
In the cutting operation, first, the fiber holder 32 is pushed into the holder 2 nd space 44 from above the holder 2 nd space 44. In this state, the fiber holder 32 abuts on the holder 2 nd guide walls 42a and 42b, and positioning in the width direction is performed. The optical cable 31 is fitted into the 2 nd groove 41b, and is also positioned in the width direction.
In addition, in a state where the fiber holder 32 is pushed into the holder-use 2 nd space 44, the fiber holder 32 abuts against the 2 nd collision wall 43, and positioning in the longitudinal direction (front-rear direction) is performed. In this state, the fiber holder 32 is also locked by the locking piece 45.
As described above, in a state where the optical fiber is positioned in the width direction and the longitudinal direction, the glass fiber guided by the 1 st groove portion 41a and protruding to the outside of the optical fiber tool 1 is cut by using a predetermined cutting tool, whereby it is easy to adjust the glass fiber to an appropriate length.
(example of use as a tool for use in insertion work)
Next, a method of using the optical fiber tool 1 in the operation of inserting the glass fiber into the optical connector will be described. Fig. 12 is a diagram showing an example of use in the case where the optical fiber tool 1 shown in fig. 9 is used for the operation of inserting the glass fiber into the optical connector 34. In fig. 12, for example, the coating layer is removed from the front side of the optical fiber 33, and the optical fiber is cut into a glass fiber having a predetermined length.
In the insertion operation, the optical connector 34 is first mounted in the optical connector space 52. Next, the optical fiber holder 32 is brought into contact with the rear-side end of the step 53, and the optical fiber cable 31 is fitted into the 1 st groove 41a to be positioned in the width direction. Then, from this state, the fiber holder 32 is moved forward along the step 53 and the holder 3 rd guide walls 54a and 54 b. Since the distance between the holder 3 rd guide walls 54a and 54b on the front side is equal to the distance between the fiber holders 32, the fiber holders 32 can be positioned more strictly in the width direction by moving the fiber holders 32 to the front side as described above. As a result, the glass fiber can be easily inserted into the appropriate position of the optical connector 34.
While the present invention has been described in detail and with reference to the specific embodiments, it will be apparent to one skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope thereof. The number, position, shape, and the like of the components described above are not limited to those of the above embodiments, and may be changed to those suitable for carrying out the present invention.
Description of the reference numerals
1: tool for optical fiber
10: 1 st plane
11: base part
12: arm part
13: base cutter part
14: arm cutter part
15a, 15 b: guide wall
16: inclined plane
17: guide part
18: protective wall
19a, 19 b: no. 1 guide wall for retainer
20: 1 st collision wall
21: no. 1 space for retainer
22 a: the 1 st rib
22 b: rib No. 2
31: optical cable
32: optical fiber holder
33: optical fiber
34: optical connector
40: the 2 nd surface
41 a: the 1 st groove part
41 b: the 2 nd groove part
42a, 42 b: no. 2 guide wall for retainer
43: no. 2 collision wall
44: no. 2 space for retainer
45: clamping stop piece
51a, 51b, 51c, 51 d: loading part
52: space for optical connector
53: step
54a, 54 b: no. 3 guide wall for retainer
Claims (9)
1. An optical fiber tool comprising:
a base part;
an arm portion extending from the base portion;
a base cutter portion provided to the base portion;
an arm cutter portion provided on the arm portion and opposed to the base cutter portion; and
a guide portion provided to the base portion and including a pair of guide walls facing each other,
the guide portion is formed so as to be capable of guiding an optical fiber, which is formed by covering a glass fiber with a coating layer, between the pair of guide walls, to a space between the base cutter portion and the arm cutter portion,
at least a portion of the arm portion is formed of an elastic member,
the optical fiber is drawn out with the optical fiber sandwiched between the base cutter portion and the arm cutter portion, whereby the clad layer can be removed.
2. The tool for optical fiber according to claim 1,
at least in the vicinity of the base cutter portion, a bottom surface between the pair of guide walls is inclined so as to become higher as approaching the base cutter portion side.
3. The tool for optical fiber according to claim 1 or 2,
the distance between the pair of guide walls is 250 [ mu ] m or more at the end of the pair of guide walls on the base cutter side, and is shorter than the length of the base cutter and the arm cutter.
4. The tool for optical fiber according to any one of claims 1 to 3,
further comprises an abutting member provided to at least one of the base portion and the arm portion,
the contact member is configured to contact a predetermined member facing the contact member when a displacement amount of the arm portion exceeds a predetermined amount.
5. The tool for optical fiber according to any one of claims 1 to 4,
and a pair of protection walls provided upright from the base portion and opposed to each other via the arm portion,
when the arm portion is projected from a direction in which the pair of protection walls face each other toward the protection wall, the arm portion is located within a range in which the protection wall exists.
6. The tool for optical fiber according to any one of claims 1 to 5,
the base part has a 2 nd surface opposite to the 1 st surface, which is a surface on the side where the arm part exists, and includes:
a 1 st groove portion capable of positioning the optical fiber in a width direction of the base portion; and
and a collision wall capable of positioning the optical fiber in a longitudinal direction of the base portion.
7. The tool for optical fiber according to any one of claims 1 to 6,
the base part has a 2 nd surface opposite to the 1 st surface, which is a surface on the side where the arm part exists, and includes:
a loading unit capable of loading an optical connector; and
and a 2 nd groove section capable of positioning the optical fiber in the width direction of the base section in a state where the optical connector is mounted on the mounting section.
8. The tool for optical fiber according to claim 6,
the base part has a 2 nd surface opposite to the 1 st surface, which is a surface on the side where the arm part exists, and includes:
a loading unit capable of loading an optical connector; and
a 2 nd groove part capable of positioning the optical fiber in the width direction of the base part in a state where the optical connector is mounted on the mounting part,
the 1 st groove and the 2 nd groove are formed on the same straight line.
9. The tool for optical fiber according to any one of claims 1 to 8,
which is an integrally molded article made of resin.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019217959A JP7475849B2 (en) | 2019-12-02 | 2019-12-02 | Fiber Optic Tools |
| JP2019-217959 | 2019-12-02 | ||
| PCT/JP2020/044559 WO2021112050A1 (en) | 2019-12-02 | 2020-11-30 | Tool for optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114746785A true CN114746785A (en) | 2022-07-12 |
| CN114746785B CN114746785B (en) | 2024-05-17 |
Family
ID=76220257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080084000.8A Active CN114746785B (en) | 2019-12-02 | 2020-11-30 | Tool for optical fiber |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP7475849B2 (en) |
| KR (1) | KR20220107198A (en) |
| CN (1) | CN114746785B (en) |
| BR (1) | BR112022010741A2 (en) |
| TW (1) | TW202127073A (en) |
| WO (1) | WO2021112050A1 (en) |
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| JP2014066864A (en) | 2012-09-26 | 2014-04-17 | Seiwa Giken:Kk | Optical fiber coating removal tool |
-
2019
- 2019-12-02 JP JP2019217959A patent/JP7475849B2/en active Active
-
2020
- 2020-11-30 CN CN202080084000.8A patent/CN114746785B/en active Active
- 2020-11-30 BR BR112022010741A patent/BR112022010741A2/en unknown
- 2020-11-30 WO PCT/JP2020/044559 patent/WO2021112050A1/en active Application Filing
- 2020-11-30 KR KR1020227018636A patent/KR20220107198A/en unknown
- 2020-12-02 TW TW109142441A patent/TW202127073A/en unknown
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| JP2528497Y2 (en) * | 1987-12-17 | 1997-03-12 | 株式会社白山製作所 | Flat optical fiber stripper |
| US4969703A (en) * | 1989-09-12 | 1990-11-13 | The United States Of America As Represented By The United States Department Of Energy | Optical fiber stripper positioning apparatus |
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Also Published As
| Publication number | Publication date |
|---|---|
| BR112022010741A2 (en) | 2022-08-23 |
| TW202127073A (en) | 2021-07-16 |
| WO2021112050A1 (en) | 2021-06-10 |
| JP2021089311A (en) | 2021-06-10 |
| KR20220107198A (en) | 2022-08-02 |
| JP7475849B2 (en) | 2024-04-30 |
| CN114746785B (en) | 2024-05-17 |
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