JP5877144B2 - Optical fiber cutting device - Google Patents

Description

  The present invention relates to an optical fiber cutting device.

  Conventionally, as an optical fiber cutting device for cutting an optical fiber, a flaw is formed on the side surface of the exposed optical fiber made of glass from which the coating of the optical fiber strand is removed, and the side opposite to the part where the flaw is formed By pressing the side surface of the optical fiber, one that cuts the optical fiber using the scratch as a trigger is disclosed (see Patent Documents 1 to 5). The cut optical fiber is fusion-spliced, for example, with other cut optical fibers butting the cut surfaces.

JP-A-2-238406 JP-A-6-82637 JP 2005-301142 A JP 2005-55479 A JP 2012-73375 A

  For example, when the cut surface of the optical fiber is inclined with respect to the central axis of the optical fiber or the cut surface is not flat, connection failure may occur when the cut optical fibers are fusion-bonded. Therefore, the optical fiber cutting device is required to cut the optical fiber so as to more stably form a high-quality cut surface that is perpendicular and flat to the central axis of the optical fiber.

  This invention is made | formed in view of the above, Comprising: It aims at providing the optical fiber cutting device which can cut | disconnect an optical fiber so that a good-quality cut surface may be formed more stably.

  In order to solve the above-described problems and achieve the object, an optical fiber cutting device according to the present invention includes a placement unit for placing an optical fiber, a feed cam that rotates by operation of an operation lever, and a guide. A blade mounted on a linear guide having a rail and a slide block that linearly moves on the guide rail, abuts against the feed cam, and is pushed by the rotation of the shaft of the feed cam to linearly move on the linear guide A support member, a blade that is placed on the blade support member, moves with a linear motion of the blade support member, and forms a scratch on the side surface of the optical fiber placed on the placement portion; A main body that houses the mounting portion, the feed cam, the blade support member, and the blade, a lid that can be opened and closed on the main body, and a portion that is provided on the lid and that forms the scratch on the optical fiber. Press the opposite side And a pressing member for cutting the optical fiber, wherein the feed cam and the blade support member are in contact with each other at a position shifted from an extension line in the longitudinal direction of the guide rail. .

  The optical fiber cutting device according to the present invention is characterized in that, in the above-mentioned invention, the feed cam has a rolling bearing and abuts against the blade support member at the rolling bearing.

  The optical fiber cutting device according to the present invention is characterized in that, in the above-mentioned invention, the blade support member has a bearing guide member that contacts the rolling bearing by point contact or line contact.

  The optical fiber cutting device according to the present invention is the optical fiber cutting device according to the above invention, wherein the pressing member is inserted through a through-hole formed in the lid and fixed with a pressing force applied from a side surface, and the pressing force is It is characterized in that the directions are distributed in two directions.

  In the optical fiber cutting device according to the present invention, in the above invention, the pressing member includes a pressing portion that presses the optical fiber, and a supporting portion that supports the pressing portion, and the supporting portion has a cross-sectional outer periphery. A protrusion is provided on a side surface of the substantially arc-shaped main body.

  The optical fiber cutting device according to the present invention is the above-described invention, wherein the lid is provided at a position where the lid collides with the main body before colliding with the main body when the lid is closed, and the impact with which the lid collides with the main body is provided. An impact mitigating member for mitigating the above is provided.

  The optical fiber cutting device according to the present invention is the optical fiber cutting device according to the above invention, wherein the impact reducing member is pressed from an initial position when the lid is pressed and completely closed, and is restored to the initial position when the lid is opened. It is configured.

  The optical fiber cutting device according to the present invention is the optical fiber cutting device according to the above-described invention, wherein the impact relaxation member, a feed roller connected to the impact relaxation member by a gear mechanism including a one-way clutch, and the optical fiber are cut. An optical fiber waste collecting unit having a waste box containing the optical fiber waste generated by the gear mechanism including the one-way clutch, the feed roller does not rotate when the impact reducing member is pressed down, The feed roller is configured to rotate when the impact mitigating member is restored to the initial position, and the optical fiber waste is sent to the waste bin by the rotation of the feed roller. .

  The optical fiber cutting device according to the present invention is characterized in that, in the above-mentioned invention, the optical fiber waste collecting part is detachably attached to the main body.

  According to the present invention, there is an effect that an optical fiber can be cut so as to form a high-quality cut surface more stably.

FIG. 1 is a schematic perspective view of the optical fiber cutting device according to Embodiment 1 with its lid opened. FIG. 2 is a perspective view showing a state in which the optical fiber folder and the optical fiber are set in the optical fiber cutting device shown in FIG. FIG. 3 is a perspective view showing a state in which the lid is closed from the state of FIG. FIG. 4 is a perspective view of the state of FIG. 3 viewed from another direction. FIG. 5 is a side view showing a state where the lid is completely closed from the state of FIG. 3. FIG. 6 is a perspective view showing the structure of the optical fiber cutting part. FIG. 7 is a perspective view showing the blade support member and the blade. FIG. 8 is a perspective view showing an operation lever, a shaft member, a feed cam, a blade support member, a blade, and a linear guide. FIG. 9 is a perspective view showing a state in which the pressing member is attached to the lid. FIG. 10 is a perspective view showing a fixed state of the pressing member. FIG. 11 is a diagram for explaining how to apply force when the pressing member is fixed. FIG. 12 is a top view showing a shaft member, a feed cam, a blade support member, a blade, and a linear guide. FIG. 13 is a diagram for explaining an operation for forming a flaw in an optical fiber. FIG. 14 is a diagram for explaining an operation for forming a flaw in an optical fiber. FIG. 15 is a diagram illustrating an operation of pressing and cutting an optical fiber. FIG. 16 is a diagram illustrating an operation of pressing and cutting an optical fiber. FIG. 17 is a schematic perspective view of the optical fiber cutting device according to Embodiment 2 with its lid opened. 18 is a side view of the optical fiber cutting device shown in FIG. FIG. 19 is a perspective view showing a state in which the optical fiber folder and the optical fiber are set in the optical fiber cutting device shown in FIG. FIG. 20 is a perspective view illustrating a fixed state of the pressing member according to the first modification. FIG. 21 is a perspective view illustrating a fixed state of the pressing member according to the second modification.

  Embodiments of an optical fiber cutting device according to the present invention will be described below in detail with reference to the drawings. Note that the present invention is not limited to the embodiments. In the drawings, the same or corresponding elements are denoted by the same reference numerals as appropriate, and repeated descriptions are omitted as appropriate. Furthermore, it should be noted that the drawings are schematic, and dimensional relationships between elements may differ from actual ones. Even between the drawings, there are cases in which portions having different dimensional relationships and ratios are included.

(Embodiment 1)
FIG. 1 is a schematic perspective view of the optical fiber cutting device according to Embodiment 1 of the present invention with the lid opened. FIG. 2 is a perspective view showing a state in which the optical fiber folder and the optical fiber are set in the optical fiber cutting device shown in FIG. FIG. 3 is a perspective view showing a state in which the lid is closed from the state of FIG. FIG. 4 is a perspective view of the state of FIG. 3 viewed from another direction. FIG. 5 is a side view showing a state where the lid is completely closed from the state of FIG. 3.

  The optical fiber cutting device 100 includes a main body 1 and a detachable optical fiber scrap collecting unit 2 attached to the main body 1. The main body 1 includes a placement unit 3 for placing the optical fiber folder H that holds the optical fiber F to be cut, a placement / operation unit 5 including an operation lever 4 for performing a cutting operation, And a cutting unit 6 having a mechanism for cutting the optical fiber F. The cutting part 6 is provided with a cutting part main body 7 and a lid 9 provided so as to be openable and closable so as to cover a later-described blade of the cutting part main body 7 by a hinge block 8.

  As shown in FIG. 2, the optical fiber folder H includes a folder main body H1 in which a groove H1a for accommodating the optical fiber F is formed, and a lid H2. The lid H2 is provided on the folder body H1 so as to be openable and closable by a hinge or the like. The optical fiber F is accommodated in the groove H1a with the coating removed from the tip by a predetermined length to expose the glass optical fiber Fa, and held in the optical fiber folder H by closing the lid H2. Is done. The optical fiber folder H holding the optical fiber F is placed and fixed on the placement unit 3. The fixing between the folder main body H1 and the lid H2 and the fixing between the optical fiber folder H and the mounting portion 3 can be performed by, for example, a magnetic force. For this reason, for example, the placement unit 3 and the lid H2 may incorporate a magnet member, and the folder body H1 may be made of a ferromagnetic material.

  As shown in FIGS. 6 to 8, the cutting portion main body 7 includes a shaft member 10 having an operation lever 4 attached to one end thereof and supported by the cutting portion main body 7 so as to be rotatable about the shaft, and the other end of the shaft member 10 A feed cam 11 attached to the section, a blade support member 12 disposed adjacent to the feed cam 11, a blade 13 supported by the blade support member 12 for forming a scratch on the optical fiber Fa, and a blade And a linear motion guide 14 on which the support member 12 is placed.

  The blade support member 12 is pressed against the feed cam 11 by a spring 15 so as to contact the feed cam 11. The blade support member 12 has a guide member 12a for starting the pressing of the optical fiber Fa.

  The linear motion guide 14 has a guide rail 14a and a slide block 14b. The blade support member 12 is placed on the guide rail 14 a, and the slide block 14 b is fixed to the cutting unit body 7. With this linear motion guide 14, the blade support member 12 and the blade 13 can perform a linear motion for cutting the optical fiber Fa.

  Moreover, the cutting | disconnection part main body 7 and the lid | cover 9 are each provided with clamp 15a-15d which clamps the part which the optical fiber Fa of the optical fiber strand F exposed. In the cutting unit body 7, the clamp 15 a and the clamp 15 b are configured such that when the optical fiber folder H holding the optical fiber F is placed on the placement unit 3, the portion where the optical fiber Fa is exposed is the clamp 15 a. It arrange | positions so that it may be mounted in the clamp 15b (refer FIG. 2). In the lid 9, the clamp 15c and the clamp 15d are arranged such that when the lid 9 is closed, the clamp 15a and the clamp 15c abut and the clamp 15b and the clamp 15d abut. An elastic material such as rubber is used for the portions of the clamps 15a to 15d that are in contact with the optical fiber Fa so as not to damage the optical fiber Fa made of glass.

  The lid 9 further has a pressing member 16 disposed at a position between the clamp 15a and the clamp 15b. The pressing member 16 is provided under a removable protective cover 9a attached to the lid 9 (see also FIG. 3). FIG. 9 is a perspective view showing a state where the pressing member 16 is attached to the lid. The pressing member 16 includes a pressing portion 16a, a supporting portion 16b, and a pressing start pin 16c. A groove 16aa for avoiding contact between the pressing portion 16a and the blade 13 is formed at the tip of the pressing portion 16a. Moreover, the front-end | tip part of the press part 16a is comprised with the elastic body material like rubber | gum so that it may not be damaged when it contacts with the optical fiber Fa which consists of glass. The support portion 16b has a protrusion 16ba having an arcuate outer periphery on the side surface of the main body having an arcuate cross section. The pressing start pin 16c is provided so as to extend from the protrusion 16ba to the pressing portion 16a. The pressing member 16 is inserted and fixed in a through hole 9b formed under the protective cover 9a of the lid 9 and having substantially the same shape as the cross section of the support portion 16b.

  FIG. 10 is a perspective view showing a fixed state of the pressing member. The support portion 16b has a flat surface 16bb on its side surface, and after being inserted into the through hole 9b, the screw hole formed on the side surface of the lid 9 so as to communicate with the through hole 9b has a metallic property such as brass. The disc 17 and the spring 18 are inserted, and a screw 19 is screwed and fixed. Note that the tip of the screw 19 has a protrusion shape, and the protrusion is fitted to the ring of the spring 18 so that the direction of the elastic force of the spring 18 is not shifted and works stably along the central axis. Become. Further, by interposing the disc 17 between the spring 18 and the flat surface 16bb, the pressing force due to the elasticity of the spring 18 is uniformly applied to the flat surface 16bb.

  FIG. 11 is a diagram for explaining how to apply force when the pressing member is fixed. As shown in FIG. 11, the protrusion 16ba of the support portion 16b is provided in a direction D1 inclined by about 45 degrees from the direction of the pressing force F1 by the spring 18. Therefore, when the pressing force F1 is applied to the flat surface 16bb, not only the force F11 in the direction of the pressing force F1 but also the force F12 in the direction perpendicular thereto is dispersed on the inner wall of the through hole 9b in the protrusion 16ba. It will be hung. As a result, the pressing member 16 is more unlikely to be displaced, such as rotating or moving, as compared with the case where a force is applied only in the direction of the pressing force F1, and the posture becomes stable.

  Next, the optical fiber waste collection unit 2 will be described. As shown in FIG. 1, the optical fiber debris collection unit 2 includes an impact relaxation member 20 provided so as to protrude upward from the main body of the optical fiber debris collection unit 2, and a feed roller disposed in the vicinity of the clamp 15a. 21 and a waste box 22 (see also FIGS. 4 and 5) disposed in the vicinity of the feed roller 21. The lid 9 is provided with a driven roller 23 that comes into contact with the feed roller 21 when the lid 9 is closed.

  The impact mitigating member 20 is configured to be stored in the main body of the optical fiber debris collection unit 2 when it is pressed by an external force by a spring mechanism (not shown), and then restored to the original position when the external force is removed. Yes. Further, the impact relaxation member 20 and the feed roller 21 are connected by a gear mechanism including a one-way clutch provided inside the main body. In this one-way clutch, when the impact reducing member 20 is pressed from the initial position (the position of the impact reducing member 20 when the lid 9 is fully opened as shown in FIG. 1), the feed roller 21 does not rotate, When the relaxation member 20 is restored to the initial position, the feed roller 21 is configured to rotate.

  The cutting part body 7 will be further described. FIG. 12 is a top view showing a shaft member, a feed cam, a blade support member, a blade, and a linear guide. The feed cam 11 has a rolling bearing 11a. The blade support member 12 has a bearing guide member 12b (see also FIG. 7). The blade support member 12 is pressed against the feed cam 11 by a spring 15 (see FIG. 6) so that the bearing guide member 12b and the rolling bearing 11a of the feed cam 11 come into contact with each other. Here, as shown in FIG. 12, the position where the bearing guide member 12b and the rolling bearing 11a are in contact with each other is a position shifted from the longitudinal extension line of the guide rail 14a of the linear guide 14 to the left side of the drawing. . As a result, when the blade support member 12 is pressed against the feed cam 11, a force F4 perpendicular to the longitudinal direction D2 of the guide rail 14a is applied to the guide rail 14a on which the blade support member 12 is placed, The guide rail 14a is pressed against the slide block 14b.

  In the slide block 14b, the blade 13 moves in a direction perpendicular to the axial direction of the optical fiber Fa when the optical fiber folder H holding the optical fiber F is placed on the placement portion 3. It arrange | positions so that it may be fixed to the cutting part main body 7. FIG. The blade 13 is supported by the blade support member 12 so that the direction D3 of the blade is parallel to the direction of linear motion by the linear motion guide 14.

Next, a usage method and operation of the optical fiber cutting device 100 will be described.
First, the lid 9 of the optical fiber cutting device 100 is opened as shown in FIG. 1, and the optical fiber folder H holding the optical fiber strand F is placed on the placement portion 3 as shown in FIG. Since the lid 9 opens at an opening angle of 90 degrees or more with respect to the placement unit 3, the operation of placing the optical fiber folder H on the placement unit 3 is facilitated. Alternatively, after the optical fiber folder H is mounted and fixed on the mounting unit 3, the optical fiber F may be mounted on the optical fiber folder H.

  At this time, the portion where the optical fiber Fa is exposed is placed on the clamps 15 a and 15 b and the feed roller 21.

  Next, the lid 9 is closed as shown in FIG. Here, the lid 9 can be opened and closed smoothly without applying a load in order to facilitate the opening and closing operation. Therefore, when the lid 9 is closed, the lid 9 may close vigorously with its own weight. When the lid 9 directly contacts the cutting portion main body 7 at that time, the position of the optical fiber F may be shifted due to the impact. In particular, when the lid 9 is mainly made of a metallic member and has a weight, the impact is increased.

  Here, each mechanism of the optical fiber folder H and the cutting unit 6 is configured so that a linear scratch in a direction perpendicular to the central axis of the optical fiber Fa is formed when the blade 13 forms a scratch on the glass optical fiber. The position has been adjusted. Therefore, when the position of the optical fiber F is displaced, there is a problem that the scratches are inclined, and it may be impossible to cut with good quality.

  On the other hand, in the optical fiber cutting device 100, since the impact mitigating member 20 is provided so as to protrude upward from the main body of the optical fiber debris collection unit 2, the lid 9 can be closed even if the lid 9 closes vigorously. Impacts the impact mitigating member 20 before colliding with the main body 1 (cutting section main body 7), so that the impact transmitted to the main body 1 when the lid 9 is closed is mitigated. Thereby, the positional deviation of the optical fiber F is prevented. Therefore, it is preferable that the impact relaxation member 20 is made of a material such as a resin that can reduce the impact caused by the contact. Further, the impact mitigating member 20 is configured to be stored in the main body of the optical fiber debris collection unit 2 when it is pressed by an external force by a spring mechanism (not shown), and then restored to the original position after the external force is removed. Therefore, the shock is further alleviated.

  Thereafter, as shown in FIG. 5, a load is applied to the lid 9 to completely close the lid 9. As a result, the impact relaxation member 20 is pushed down, and the impact relaxation member 20 is completely stored in the main body of the optical fiber waste collection unit 2. Further, when the lid 9 is completely closed, the optical fiber Fa is clamped by the clamps 15 a to 15 d and also by the feed roller 21 and the driven roller 23. Thereby, the optical fiber Fa is fixed.

  Next, an operation of depressing the operation lever 4 is performed. Then, the shaft member 10 rotates about the shaft, and thereby the feed cam 11 rotates about the shaft member 10. Since the feed cam 11 pushes the blade support member 12 via the rolling bearing 11a, the blade support member 12 placed on the linear motion guide 14 performs a linear motion.

  13 and 14 are diagrams for explaining the operation of forming a flaw in the optical fiber. FIG. 13 is a view of the state before the operation lever 4 is pressed as viewed from the placement unit 3 side. The optical fiber Fa is placed on the clamp 15a.

  When the operation lever 4 is pressed, the feed cam 11 rotates and the blade support member 12 is pushed via the rolling bearing 11a, so that the blade support member 12 moves linearly. As a result, as shown in FIG. 14, the blade supporting member 12 passes under the optical fiber Fa, and at this time, the blade 13 forms a scratch on the optical fiber Fa.

  Here, there may be a slight gap of, for example, 1 μm to 3 μm on only one side between the guide rail 14a and the slide block 14b. On the other hand, the diameter of the optical fiber Fa is, for example, 125 μm, but the cut surface of the optical fiber Fa may be inclined about 2 to 3 degrees with respect to the central axis even if the scratch is slightly deviated by about 0.2 μm. is there.

  In contrast, in this optical fiber cutting device 100, the blade support member 12 moves linearly with the guide rail 14a being pressed against the slide block 14b as shown in FIG. Moves in a straight line without its trajectory blurring. As a result, the flaw that the blade 13 attaches to the optical fiber Fa becomes stable in the direction of the flaw. Therefore, it is possible to stably cut the optical fiber Fa so as to have a good quality cut surface by using this scratch.

  In this optical fiber cutting device 100, when the feed cam 11 rotates, the rolling bearing 11a pushes the blade support member 12 while rolling on the bearing guide member 12b. As a result, since the contact resistance between the feed cam 11 and the blade support member 12 is rolling resistance, the frictional force is small, and wear or scratches are less likely to occur at the contact point between the feed cam 11 and the blade support member 12. Therefore, the direction of the force with which the feed cam 11 pushes the blade support member 12 is stabilized, and the blade support member 12 can stably perform linear motion.

  The bearing guide member 12b has a cylindrical shape, and the outer periphery on the side in contact with the feed cam 11 has an arc shape. In this case, the contact between the rolling bearing 11a and the bearing guide member 12b is a point contact or a line contact, and the contact area is reduced. Therefore, the direction of the force with which the feed cam 11 pushes the blade support member 12 is further stabilized. Thereby, the blade support member 12 can perform a linear motion more stably.

On the other hand, FIGS. 15 and 16 are diagrams illustrating an operation of pressing and cutting an optical fiber.
FIG. 15 is a view of the state before the operation lever 4 is pressed, as viewed from the optical fiber waste collecting unit 2 side. The optical fiber Fa is placed on the clamp 15a. Further, the pressing portion 16a and the pressing start pin 16c are urged downward by a spring mechanism (not shown) built in the pressing member 16, and the pressing start pin 16c is pressed against the guide member 12b.

  When the operation lever 4 is pressed, the blade support member 12 is linearly moved by the feed cam 11. As a result, as described above, the blade support member 12 passes under the optical fiber Fa, and at this time, the blade 13 scratches the optical fiber Fa. Further, as shown in FIG. 16, after the left end of the guide member 12 b on the left side of the paper passes just below the pressing start pin 16 c, the pressing portion 16 a and the pressing start pin 16 c move downward by the elastic force of the spring mechanism. And the press part 16a presses the optical fiber Fa in which the crack was formed. As a result, the optical fiber Fa is cut.

  Here, as shown in FIG. 11, the pressing member 16 has a stable posture without displacement due to the presence of the protruding portion 16 ba, and therefore a preferable direction with respect to the optical fiber Fa, that is, the central axis of the optical fiber Fa. It is possible to apply a pressing force in the vertical direction. As a result, the optical fiber Fa can be cut more stably so as to have a good quality cut surface. In addition, the part (the part mounted on the clamp 15a and the feed roller 21) cut off by cutting the optical fiber Fa becomes optical fiber waste.

  Thereafter, when the operation lever 4 is further pressed, the feed cam 11 pushes up the lid 9 and the lid 9 jumps up, and the impact reducing member 20 pressed by the lid 9 is restored to the initial position. At this time, as described above, the feed roller 21 is rotated by the gear mechanism including the one-way clutch, and the optical fiber waste cut in cooperation with the driven roller 23 is sent to the waste box 22. As a result, the optical fiber waste is collected in the waste bin 22.

  When the pressing of the operation lever 4 is released, the feed cam 11, the blade support member 12 and the blade 13 are returned to the initial positions (FIG. 13) by the restoring force of the spring 15 (see FIG. 6).

  In the optical fiber cutting device disclosed in Patent Document 3, the optical fiber is cut and the optical fiber waste is collected by pressing the operation lever. Therefore, in the optical fiber cutting device, the mechanism that cuts by the operation lever and the mechanism that collects the optical fiber waste are connected across the cut portion of the optical fiber.

  On the other hand, in this optical fiber cutting device 100, the operation lever 4, the cutting part 6 connected to the operation lever 4, and the optical fiber waste collecting part 2 are separated. Therefore, since the optical fiber waste collection part 2 is detachable, the function expandability is improved, and the connecting part is unnecessary, so that the size and weight are reduced.

  As described above, the optical fiber cutting device 100 according to Embodiment 1 can cut an optical fiber so as to form a high-quality cut surface more stably.

(Embodiment 2)
FIG. 17 is a schematic perspective view of the optical fiber cutting device according to Embodiment 2 of the present invention with the lid opened. 18 is a side view of the optical fiber cutting device shown in FIG. FIG. 19 is a perspective view showing a state in which the optical fiber folder and the optical fiber are set in the optical fiber cutting device shown in FIG.

  An optical fiber cutting device 200 according to the second embodiment includes a main body 1 including a placement / operation unit 5 and a cutting unit 6 similar to those of the optical fiber cutting device 100. However, the main body 1 is different from the optical fiber cutting device 100 in that a detachable side cover 24 is attached in place of the optical fiber debris collection unit 2.

  The side cover 24 includes an impact relaxation member 25 provided so as to protrude upward from the main body of the side cover 24. As with the impact mitigating member 20, the impact mitigating member 25 is configured to be stored in the main body of the side cover 24 when it is pressed with an external force, and then restored to its original position when the external force is removed. However, unlike the impact relaxation member 20, the impact relaxation member 25 is not connected to the gear mechanism.

  About the usage method and operation | movement of this optical fiber cutting device 200, it is substantially the same as that of the optical fiber cutting device 100. Therefore, the optical fiber cutting device 200 can cut the optical fiber so that the cut surface is more stable and good quality. However, the optical fiber cutting device 200 does not collect the optical fiber waste, and the impact mitigating member 25 mainly acts to mitigate the impact when the lid 9 is closed.

  In the above embodiment, the protrusion 16ba is provided on the pressing member 16 so that the direction of the pressing force for fixing the pressing member 16 is dispersed. However, the structure for dispersing the pressing force is not limited to the one provided with the protrusions.

  FIG. 20 is a perspective view illustrating a fixed state of the pressing member according to the first modification. Similar to the pressing member 16, the pressing member 16A according to the first modification includes a pressing portion, a supporting portion 16Ab, and a pressing start pin. The supporting portion 16Ab has a concave portion 16Aba whose outer periphery is an arc shape on the side surface. Have. The support portion 16Ab has a flat surface 16Abb on its side surface. A through hole 9Ab having substantially the same shape as the cross section of the support portion 16Ab is formed in the lid, and the pressing member 16A is inserted and fixed in the through hole 9Ab.

  The concave portion 16Aba of the support portion 16Ab is provided in a direction inclined by approximately 45 degrees from the direction of the pressing force F1 by the spring. Therefore, as in the case of the support portion 16, when the pressing force F1 is applied, the pressing force F1 is applied to the inner wall of the through hole 9Ab in two directions in the recess 16Aba. As a result, the pressing member 16A is less likely to be displaced and has a stable posture.

  FIG. 21 is a perspective view illustrating a fixed state of the pressing member according to the second modification. The pressing member 16B according to Modification 2 is configured by a pressing member 16Ba having the same shape as the pressing member 16A and a columnar pressing member 16Bb. A through hole 9b having the same shape as that in the case of FIG. 9 is formed in the lid. The pressing members 16Ba and 16Bb are inserted and fixed in the through holes 9b. At this time, the pressing member 16Bb is inserted into the recess 16Baa of the pressing member 16Ba and the recess of the through hole 9b. Also in this case, the pressing force F1 by the spring is applied in two directions to the inner wall of the through hole 9b. As a result, the pressing member 16B is less likely to be displaced and has a stable posture.

  In the above-described embodiment, the protrusion 16ba of the pressing member 16 and the recess 16Aba of the pressing member 16A have an arcuate outer periphery in cross section, but the shape is not limited to the arc shape, and the inner wall of the through hole to be inserted and fixed is used. Any shape in which the direction of the applied pressing force is dispersed may be used, and for example, a wedge shape may be used.

  Further, in the above embodiment, the feed cam 11 and the blade support member 12 are in contact with each other by the rolling bearing 11a and the bearing guide member 12b. The blade support member 12 may be in contact, and when the feed cam 11 feeds the blade support member 12, the contact members may slide.

  Further, the present invention is not limited by the above embodiment. What was comprised combining each component mentioned above suitably is also contained in this invention. Further effects and modifications can be easily derived by those skilled in the art. Therefore, the broader aspect of the present invention is not limited to the above-described embodiment, and various modifications can be made.

DESCRIPTION OF SYMBOLS 1 Main body 2 Optical fiber waste collection | recovery part 3 Mounting part 4 Operation lever 5 Mounting / operation part 6 Cutting part 7 Cutting part main body 8 Hinge block 9 Lid 9a Protective cover 9b, 9Ab Through-hole 10 Shaft member 11 Feeding cam 11a Rolling bearing 12 Blade support member 12a Guide member 12b Bearing guide member 13 Blade 14 Linear motion guide 14a Guide rail 14b Slide block 15 Spring 15a, 15b, 15c, 15d Clamp 16, 16A, 16B, 16Ba, 16Bb Press member 16a Press part 16aa Groove 16b , 16Ab Support portion 16ba Protrusion portion 16bb, 16Abb Flat surface 16c Pressing start pin 16Aba, 16Baa Recess 17 Disc 18 Spring 19 Screw 20, 24 Impact mitigation member 21 Feed roller 22 Waste box 23 Follow roller 24 Side cover 25 Impact mitigation Member 100, 200 Optical fiber cutting device F Optical fiber strand Fa Optical fiber H Optical fiber folder H1 Folder body H1a Groove H2 Lid

Claims (8)

A placement section for placing the optical fiber;
A feed cam that rotates by an operation of the control lever;
It is mounted on a linear motion guide having a guide rail and a slide block that linearly moves on the guide rail, abuts against the feed cam, and is pushed by the shaft rotation of the feed cam to linearly move on the linear motion guide. A blade support member;
A blade that is mounted on the blade support member, moves with a linear motion of the blade support member, and forms a scratch on the side surface of the optical fiber mounted on the mounting portion;
A main body that houses the placement portion, the feed cam, the blade support member, and the blade;
A lid provided on the main body so as to be openable and closable;
A pressing member that is provided on the lid and cuts the optical fiber by pressing a side surface of the optical fiber opposite to the part where the scratch is formed;
With
The feed cam and the blade support member are in contact with each other at a position shifted from the extension line in the longitudinal direction of the guide rail,
The pressing member is inserted through a through-hole formed in the lid, fixed with a pressing force applied from a side surface, and configured so that the direction of the pressing force is dispersed in two directions. An optical fiber cutting device. The optical fiber cutting device according to claim 1, wherein the feed cam has a rolling bearing and abuts against the blade support member at the rolling bearing. 3. The optical fiber cutting device according to claim 2 , wherein the blade support member has a bearing guide member that contacts the rolling bearing by point contact or line contact.   The pressing member includes a pressing portion that presses the optical fiber, and a supporting portion that supports the pressing portion, and the supporting portion includes a protrusion on a side surface of the main body having a substantially arc-shaped outer periphery. The optical fiber cutting device according to claim 1, wherein: Provided in a position impinging on lid before the lid when closing the front Kifuta impinges on said body, characterized in that it comprises a shock absorbing member for relaxing an impact said lid impinges on the body The optical fiber cutting device according to any one of claims 1 to 4 . The impact damper is claimed in claim 5 in which the pressed from the initial position when fully closed by pressing the lid, characterized in that it is configured to restore the open when the initial position the lid Optical fiber cutting device. A placement section for placing the optical fiber;
A feed cam that rotates by an operation of the control lever;
It is mounted on a linear motion guide having a guide rail and a slide block that linearly moves on the guide rail, abuts against the feed cam, and is pushed by the shaft rotation of the feed cam to linearly move on the linear motion guide. A blade support member;
A blade that is mounted on the blade support member, moves with a linear motion of the blade support member, and forms a scratch on the side surface of the optical fiber mounted on the mounting portion;
A main body that houses the placement portion, the feed cam, the blade support member, and the blade;
A lid provided on the main body so as to be openable and closable;
A pressing member that is provided on the lid and cuts the optical fiber by pressing a side surface of the optical fiber opposite to the part where the scratch is formed;
An optical fiber debris collection unit mounted on the main body, provided at a position where the lid collides with the lid before the lid collides with the main body when the lid is closed , and the lid collides with the main body An optical fiber having an impact mitigating member for mitigating an impact, a feed roller connected to the impact mitigating member by a gear mechanism including a one-way clutch, and a waste box for accommodating optical fiber waste generated by cutting the optical fiber. A waste collection section ;
With
The impact relaxation member is configured to be pressed from an initial position when the lid is pressed and completely closed, and to be restored to the initial position when the lid is opened.
The feed cam and the blade support member are in contact with each other at a position shifted from the extension line in the longitudinal direction of the guide rail,
The gear mechanism including the one-way clutch is configured such that the feed roller does not rotate when the impact reducing member is pressed, and the feed roller rotates when the impact reducing member is restored to the initial position. And the said optical fiber waste is sent to the said waste box by the said feed roller rotating. The optical fiber cutting device characterized by the above-mentioned. The optical fiber cutting device according to claim 7 , wherein the optical fiber scrap collecting unit is detachably attached to the main body.

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