JP2018163329A - Optical fiber cutting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an optical fiber cutting device, in which the mechanism for rotating a blade member can be simplified.SOLUTION: Provided is an optical fiber cutting device, comprising: a base 10 having a pair of clamps arranged in the longitudinal direction of an optical fiber 100 with a space therebetween; a blade member moving table, having a discoidal blade member 13, for moving the blade member between the pair of clamps and bringing the surface of the optical fiber into contact with the outer circumferential edge of the blade member to add a flaw; and a pressing member for forcibly bending the flaw-added part of the optical fiber and cutting the optical fiber. The blade member is rotatably fixed to the blade member moving table in order to change the position of the outer circumferential edge that comes in contact with the optical fiber. The base has a rotation member 42 rotatably fixed to the base, the blade member being engageable with the rotation member, making it possible to rotate the blade member by rotating the rotation member while the blade member and the rotation member are engaged, the engagement of the blade member and the rotation member being severable.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an optical fiber cutting device.

In the optical fiber cutting device, when cutting an optical fiber (optical fiber core wire), first, the blade member is brought into contact with the optical fiber to initially damage the surface of the optical fiber. Thereafter, the optical fiber is cut by bending a portion of the optical fiber that has been initially scratched. The blade member is worn every time the optical fiber is initially scratched. For this reason, conventionally, changing the part which contacts an optical fiber among blade members is considered (for example, refer to patent documents 1).
Patent Document 1 discloses an apparatus that changes a contact portion of a blade member with respect to an optical fiber by rotating the blade member with a driving force of a motor (drive source).

JP-A-6-186436

  However, in the apparatus described in Patent Document 1, a cam for rotating the blade member is provided on the blade member moving base that moves the blade member to scratch the surface of the optical fiber. For this reason, in order to provide the motor (drive source) which drives a cam in a blade member moving stand, it is necessary to lengthen the wiring connected to a motor, and the mechanism for rotating a blade member will become complicated.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide an optical fiber cutting device capable of simplifying a mechanism for rotating a blade member.

  The optical fiber cutting device according to the present invention includes a base having a pair of clamps arranged at intervals in the longitudinal direction of the optical fiber, and a disk-shaped blade member, and the blade member is the pair of blades. A blade member moving base that moves between the clamps of the optical fiber to bring the surface of the optical fiber into contact with the outer peripheral edge of the blade member and damages the optical fiber by cutting and bending the damaged portion of the optical fiber. A pressing member, and the blade member is pivotally fixed with respect to the blade member moving base in order to change the position of the outer peripheral edge contacting the optical fiber, and the base is A state in which the blade member and the rotation member can be engaged with each other, and the blade member and the rotation member are engaged with each other. The blade member can be rotated by rotating the rotation member with the blade. Engagement of wood and the pivot member is releasable.

  In the optical fiber cutting device, the blade member and the rotating member may be engaged only when the blade member moving base is moved to a predetermined position.

  In the optical fiber cutting device, the engagement between the blade member and the turning member may be released according to the turning position of the turning member.

  The optical fiber cutting device according to the present invention includes a base having a pair of clamps arranged at intervals in the longitudinal direction of the optical fiber, and a disk-shaped blade member, and the blade member is the pair of blades. A blade member moving base that moves between the clamps of the optical fiber to bring the surface of the optical fiber into contact with the outer peripheral edge of the blade member and damages the optical fiber by cutting and bending the damaged portion of the optical fiber. A pressing member, and the blade member is pivotally fixed with respect to the blade member moving base in order to change the position of the outer peripheral edge contacting the optical fiber, and the base is The rotating member has a rotating member fixed to the base so as to be rotatable. When the rotating member is rotated, power can be transmitted from the rotating member to the blade member to rotate the blade member. Yes, the power transmission between the blade member and the rotating member can be released, and the blade portion Power transmission between the rotating member and the torque acting on the blade member is released when it becomes a predetermined value or more.

  The optical fiber cutting device according to the present invention includes a base having a pair of clamps arranged at intervals in the longitudinal direction of the optical fiber, and a disk-shaped blade member, and the blade member is the pair of blades. A blade member moving base that moves between the clamps of the optical fiber to bring the surface of the optical fiber into contact with the outer peripheral edge of the blade member and damages the optical fiber by cutting and bending the damaged portion of the optical fiber. A pressing member, and the blade member is pivotally fixed with respect to the blade member moving base in order to change the position of the outer peripheral edge contacting the optical fiber, and the base is The rotating member has a rotating member fixed to the base so as to be rotatable. When the rotating member is rotated, power can be transmitted from the rotating member to the blade member to rotate the blade member. Yes, the power transmission between the blade member and the rotating member can be released, and the blade portion The moving table is further fixed to the blade member moving table so as to be rotatable, and further includes a manual operation rotating member that transmits power by rotating by a user and rotates the blade member. Further includes a window for exposing the manual operation turning member of the blade member moving base housed inside.

  In the optical fiber cutting device, the window may be provided on a bottom surface and / or a side surface of the base.

  Moreover, the said optical fiber cutting device WHEREIN: The said base may further have a cover for misrotation prevention which covers the said rotation member for manual operation.

  Further, in the optical fiber cutting device, the manual operation turning member may be exposed to the outside only when the blade member moving base is moved to a predetermined position.

  The optical fiber cutting device may further include a holding mechanism that holds at least one of the blade member and the rotating member at a predetermined rotating position.

  The optical fiber cutting device may further include a holding mechanism that holds at least one of the blade member, the rotating member, and the manual operation rotating member at a predetermined rotating position.

  Furthermore, in the optical fiber cutting device, the rotating member may be rotated by electromagnetic force.

  According to the present invention, when the rotation of the blade member is driven by a drive source such as a motor, the drive source may be connected to the rotation member provided on the base. That is, the drive source can be provided on the base. Therefore, the mechanism for rotating the blade member can be simplified, for example, the wiring (electrical wiring) for connecting to the drive source can be shortened.

1 is a perspective view showing an optical fiber cutting device according to an embodiment of the present invention. It is sectional drawing which shows the optical fiber cutting device which concerns on one Embodiment of this invention. 1 and 2, the rotating member attached to the base, the blade member moving base disposed at the first position, the blade member attached to the blade member moving base, and the blade member fixing member It is a perspective view which shows the rotation member for manual operation, a pressing member, etc. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3. FIG. 4 is an exploded perspective view showing a state in which the blade member and the pressing member are removed from the blade member moving base in the configuration shown in FIG. 3. It is a disassembled perspective view which shows the state which removed the blade member moving stand from the structure shown in FIG. It is a blade member fixing member with which the optical fiber cutting device which concerns on one Embodiment of this invention is equipped, (a) is a perspective view, (b) is the front view seen from the VIIb direction of (a), (c) is (a) It is the rear view seen from the VIIc direction. In the configuration shown in FIGS. 3, 5, and 6, the positional relationship between the rotating member attached to the base, the blade member fixing member attached to the blade member moving base, the manual operation rotating member, and the relay member is shown. It is a side view. 1 and 2, the rotating member attached to the base, the blade member moving base disposed at the second position, the blade member attached to the blade member moving base, and the blade member fixing member It is a perspective view which shows the rotation member for manual operation, a pressing member, etc. FIG. 10 is a side view showing a positional relationship among a rotating member attached to the base, a blade member fixing member attached to the blade member moving base, a manual operation rotating member, and a relay member in the configuration shown in FIG. 9. . In the optical fiber cutting device concerning other embodiments of the present invention, it is a side view showing the state where the blade member moving stand was arranged in the first position. In the optical fiber cutting device of FIG. 11, it is a side view which shows the state by which the blade member moving stand was distribute | arranged to the 2nd position. In the optical fiber cutting device concerning other embodiments of the present invention, it is a side view showing the state where the blade member moving stand was arranged in the first position.

Hereinafter, an embodiment of an optical fiber cutting device according to the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the optical fiber cutting device 1 of the present embodiment includes a base 10 having a pair of clamps 11 and 12, a blade member moving base 14 having a disk-like blade member 13, A pressing member 15. The base 10 includes a base portion 110 and a lid portion 17. The lid portion 17 is attached to the base portion 110 so as to be rotatable about the rotation shaft 16.

  The pair of clamps 11 and 12 are disposed with a gap in the longitudinal direction of the optical fiber 100. The pair of clamps 11 and 12 hold the optical fiber 100. The clamps 11 and 12 include lower clamps 11A and 12A and upper clamps 11B and 12B that sandwich the optical fiber 100 from the vertical direction (the vertical direction in FIGS. 1 and 2). Elastic pads such as rubber may be provided on portions of the lower clamps 11A and 12A and the upper clamps 11B and 12B that face each other (portions that sandwich the optical fiber 100).

  In the present embodiment, the pair of lower clamps 11 </ b> A and 12 </ b> A is disposed on the upper surface 10 a of the base 110. On the other hand, the pair of upper clamps 11 </ b> B and 12 </ b> B are provided on the lid portion 17. The optical fiber 100 can be gripped by the pair of clamps 11 and 12 by closing the lid portion 17 with respect to the base portion 110.

The blade member moving base 14 (hereinafter referred to as the blade base 14) moves the blade member 13 between the pair of clamps 11 and 12 to bring the surface of the optical fiber 100 into contact with the outer peripheral edge of the blade member 13. Injured. The blade base 14 is provided so as to be movable with respect to the base 10 so as to pass the blade member 13 between the pair of clamps 11 and 12. In the present embodiment, the blade base 14 is provided so as to be movable with respect to the base 110.
The moving direction of the blade base 14 may be a direction that intersects the longitudinal direction of the optical fiber 100 held by the pair of clamps 11 and 12 so that at least the surface of the optical fiber 100 can be damaged by the blade member 13. . In the present embodiment, the moving direction of the blade base 14 is a direction perpendicular to the longitudinal direction of the optical fiber 100 held by the pair of clamps 11 and 12.

In the present embodiment, the blade base 14 is accommodated in the base 110. Accordingly, most of the blade member 13 is disposed inside the base 110, and only a part of the blade member 13 protrudes from the upper surface 10 a of the base 110. The moving direction of the blade base 14 is a direction along the upper surface 10 a of the base 110.
As shown in FIG. 3, a shaft 32 is inserted through the blade base 14 of the present embodiment. The shaft 32 is a track that is attached to the inside of the base 110 and moves the blade base 14 in a predetermined linear direction with respect to the base 110. That is, the blade base 14 is movable in the longitudinal direction of the shaft 32.

As shown in FIG. 1-3, the disk-shaped blade member 13 provided in the above-described blade base 14 is arranged so that the disk plane is along the moving direction of the blade base 14. In the present embodiment, the disk plane of the blade member 13 is orthogonal to the longitudinal direction of the optical fiber 100 (the arrangement direction of the pair of clamps 11 and 12).
The blade member 13 is in contact with the surface of the optical fiber 100 held by the pair of clamps 11 and 12 in the middle of its movement path (while moving). 100 surfaces are injured.

The blade member 13 is fixed so as to be rotatable with respect to the blade base 14 in order to change the position of the outer peripheral edge contacting the surface of the optical fiber 100. Specifically, the blade member 13 is rotatable about an axis A1 of the blade member 13 (a line extending in a direction orthogonal to the paper surface in FIG. 2). Thereby, the position of the outer periphery part of the blade member 13 which contacts the optical fiber 100 can be changed.
When the optical fiber 100 is damaged, a predetermined length in the circumferential direction (hereinafter referred to as a contact length of the blade member 13) in contact with the surface of the optical fiber 100 among the outer peripheral edge of the blade member 13. For this reason, when changing the position of the outer peripheral edge of the blade member 13 in contact with the optical fiber 100, the blade member 13 may be rotated by an angle unit corresponding to the contact length of the blade member 13. The contact length of the blade member 13 may be a length obtained by equally dividing the entire circumference of the outer peripheral edge of the blade member 13 into a plurality of regions. The contact length of the blade member 13 in this embodiment is a length obtained by dividing the entire circumference of the outer peripheral edge portion of the blade member 13 into 16 equal parts.

As shown in FIGS. 1 and 2, the pressing member 15 cuts the optical fiber 100 by pushing and bending the scratched portion of the optical fiber 100 that is scratched by the blade member 13. In the present embodiment, the pressing member 15 is provided on the lid portion 17 in the same manner as the upper clamps 11B and 12B described above. The optical fiber 100 can be pushed and bent by the pressing member 15 by closing the lid portion 17 with respect to the base portion 110.
In the present embodiment, the rotation shaft 16 of the lid portion 17 is parallel to the axis A <b> 1 of the blade member 13, i.e., orthogonal to the moving direction of the blade member 13 and the blade base 14.

  The lid portion 17 of the present embodiment includes a lid body 18, a clamp attachment portion 19 to which a pair of upper clamps 11B and 12B are attached, and a pressing member attachment portion 20 to which a pressing member 15 is attached. Prepare. The lid body 18, the clamp attachment portion 19, and the pressing member attachment portion 20 are attached to the base portion 110 so as to be rotatable about the rotation shaft 16 independently of each other. The clamp attachment portion 19 and the pressing member attachment portion 20 are located on the front side of the lid body 18 in the direction in which the lid portion 17 is closed.

  A first spring 21 is provided between the lid body 18 and the clamp mounting portion 19. The gripping force of the pair of clamps 11 and 12 with respect to the optical fiber 100 can be ensured by the elastic force of the first spring 21. A second spring 22 is provided between the lid body 18 and the pressing member mounting portion 20. The second spring 22 can apply a bending force to the optical fiber 100 by the urging of the pressing member 15.

  The clamp mounting portion 19 is locked to the lid body 18 by a locking claw 23 formed on the lid body 18. This prevents the clamp mounting portion 19 from being excessively separated from the lid main body 18 by the biasing force of the first spring 21. Further, the pressing member mounting portion 20 is locked to the clamp mounting portion 19 by a locking portion (not shown) formed in the clamp mounting portion 19. Accordingly, the pressing member mounting portion 20 is prevented from being excessively separated from the lid body 18 and the clamp mounting portion 19 by the urging force of the second spring 22.

  Furthermore, in the optical fiber cutting device 1 of the present embodiment, the process of gripping, scratching, pushing and bending the optical fiber 100 is realized as a series of operations only by closing the lid portion 17 with respect to the base portion 110. It is configured. Hereinafter, this point will be described.

  A spring 24 that moves the blade base 14 by an elastic force is provided inside the base 110. One end of the spring 24 is held by the blade base 14, and the other end of the spring 24 is held by the base 110. The spring 24 expands and contracts in the moving direction of the blade base 14 as the blade base 14 moves.

  Inside the base 110, a push-in projection 25 formed integrally with the lid 17 is disposed. The pushing protrusion 25 pushes and moves the blade base 14 in a direction away from the rotation shaft 16 of the lid 17 when the lid 17 is opened with respect to the base 110. At this time, the spring 24 may contract elastically, but elastically expands in this embodiment.

  In addition, a locking member 26 that locks the blade base 14 in a state where the lid portion 17 is opened with respect to the base portion 110 is provided inside the base portion 110. The locking member 26 holds the blade base 14 at the position (the position shown in FIGS. 1 and 2) pushed by the pushing protrusion 25 by being locked to the blade base 14.

  On the other hand, a release projection 27 is provided on the lid 17. When the lid 17 is closed with respect to the base 110, the release protrusion 27 is pressed against the locking member 26 to release the locked state of the blade base 14 by the locking member 26. In other words, when the lid portion 17 is closed with respect to the base portion 110, the blade base 14 (and the blade member 13) passes between the pair of clamps 11 and 12 by the elastic force of the spring 24. The lid 17 moves in a direction approaching the rotation shaft 16.

  The timing of releasing the locked state of the blade base 14 by the locking member 26 may be after the optical fiber 100 is gripped by the pair of clamps 11 and 12 when the lid portion 17 is closed with respect to the base portion 110. . Thereby, the surface of the optical fiber 100 can be damaged by the blade member 13 in a state where the optical fiber 100 is held by the pair of clamps 11 and 12.

The blade base 14 and the pressing member attaching portion 20 are provided with positioning convex portions 28 and 29 that come into contact with each other when the lid portion 17 is closed with respect to the base portion 110. In a state in which the positioning projections 28 and 29 of the blade base 14 and the pressing member mounting portion 20 are in contact with each other, the pressing member 15 is positioned above the optical fiber 100 with a gap.
The timing of releasing the contact state between the positioning convex portions 28 and 29 is such that the locking state of the blade base 14 by the locking member 26 described above is released, and the blade base 14 is moved by a pair of clamps 11 and 11 by the elastic force of the spring 24. 12 after moving in a direction approaching the rotation shaft 16 of the lid portion 17 so as to pass through the space 12, that is, after the surface of the optical fiber 100 is damaged by the blade member 13.

  When the contact between the positioning protrusions 28 and 29 is released, the pressing member 15 is moved to the optical fiber by the elastic force of the second spring 22 disposed between the pressing member mounting portion 20 and the lid body 18. 100. Thereby, the damage of the optical fiber 100 grows and the optical fiber 100 is cut.

  In addition, the optical fiber cutting device 1 of the present embodiment has a structure for holding the optical fiber 100 on the pair of lower clamps 11A and 12A until the lid portion 17 is closed with respect to the base portion 110. Specifically, the optical fiber cutting device 1 of this embodiment includes a fiber holder 30 that holds the optical fiber 100 in a sandwiched state. The fiber holder 30 can be accommodated in a positioning recess 31 formed in the upper surface 10 a of the base 110. In a state where the fiber holder 30 is accommodated in the positioning recess 31, the optical fiber 100 held by the fiber holder 30 is against the base 110 and the lid portion 17 (the pair of clamps 11 and 12, the blade member 13, and the pressing member 15). Can be positioned.

  Specifically, the positioning recess 31 is formed in a groove shape extending in the arrangement direction of the pair of lower clamps 11A and 12A. The width dimension of the positioning recess 31 corresponds to the width dimension of the fiber holder 30. For this reason, in a state where the fiber holder 30 is accommodated in the positioning recess 31, the fiber holder 30 is restricted from moving in the width direction of the positioning recess 31 with respect to the base 110. Thereby, the optical fiber 100 held by the fiber holder 30 is fixed to the base 110 and the lid portion 17 (the pair of clamps 11 and 12, the blade member 13, and the pressing member 15) in the width direction of the positioning recess 31. Can be positioned.

The first end 31a of the positioning recess 31 in the arrangement direction of the pair of lower clamps 11A and 12A is positioned adjacent to the one lower clamp 11A. The front end 30 a of the fiber holder 30 facing the lower clamp 11 </ b> A can contact the first end 31 a of the positioning recess 31. On the other hand, the second end 31 b of the positioning recess 31 is open to the side surface 10 b of the base 110.
Therefore, by bringing the front surface 30a of the fiber holder 30 into contact with the first end 31a of the positioning recess 31, the optical fiber 100 held by the fiber holder 30 is moved in the longitudinal direction of the positioning recess 31 (a pair of lower clamps 11A, 11A, 12A can be positioned with respect to the base 110 and the lid 17 (a pair of clamps 11 and 12, the blade member 13, and the pressing member 15).

  In the optical fiber cutting device 1 of the present embodiment, the base 10 further includes a rotating member 42 as shown in FIGS. The rotation member 42 is fixed to the base 10 so as to be rotatable. Further, the rotating member 42 rotates the blade member 13 by transmitting power by rotating the rotating member 42. The power transmission between the blade member 13 and the rotating member 42 can be released. Hereinafter, this configuration will be specifically described.

The blade member 13 includes a blade member fixing member 41 (hereinafter referred to as a fixing member 41). The fixing member 41 may be formed integrally with the blade member 13, for example. In the present embodiment, the fixing member 41 is formed separately from the blade member 13 and is integrally fixed to the blade member 13. Thereby, the fixing member 41 is fixed to the blade base 14 together with the blade member 13 so as to be rotatable.
As shown in FIGS. 4-7, the fixing member 41 of this embodiment is formed in a disk shape. A circular insertion hole 44 through which a cylindrical blade shaft 43 protruding from the blade base 14 is inserted is formed in the central portion of the fixing member 41 viewed from the axial direction. The inner diameter dimension of the insertion hole 44 corresponds to the outer diameter dimension of the blade shaft 43. For this reason, in a state where the fixing member 41 is inserted through the blade shaft 43 of the blade base 14, the fixing member 41 can rotate about the axis A <b> 1 with respect to the blade base 14.

  The blade shaft 43 of the blade base 14 is inserted through the blade member 13 in the same manner as the fixing member 41. Thereby, the blade member 13 can rotate the axis A <b> 1 with respect to the blade base 14.

  In a state where the fixed member 41 and the blade member 13 are attached to the blade shaft 43 of the blade base 14, the blade member 13 and the fixed member 41 are arranged so as to overlap in the axial direction. On the opposing surfaces of the blade member 13 and the fixing member 41 facing each other in the axial direction, a concavo-convex portion for locking the blade member 13 and the fixing member 41 to each other is formed. In the present embodiment, the concavo-convex portion includes a convex portion 45 formed on the opposing surface of the fixing member 41, an insertion portion 46 formed on the opposing surface of the blade member 13 and into which the convex portion 45 of the fixing member 41 is inserted, It is constituted by. The insertion portion 46 of the blade member 13 may be, for example, a bottomed recess, but the insertion portion 46 of the blade member 13 in the present embodiment is a through-hole penetrating in the axial direction. By inserting the convex portion 45 of the fixing member 41 into the insertion portion 46 of the blade member 13, the blade member 13 and the fixing member 41 can be integrally rotated with respect to the blade base 14.

  As shown in FIGS. 4-6, the blade member 13 and the fixing member 41 of this embodiment are hold | maintained at the blade base 14 by being pinched | interposed between the blade base 14 and the pressing member 47 in the axial direction. Specifically, the fixing member 41 and the blade member 13 are formed in the blade shaft 43 after the shaft portion of the screw 48 is passed through the blade pressing member 47 after the fixing member 41 and the blade member 13 are sequentially attached to the blade shaft 43 of the blade base 14. The screw hole 49 is screwed. Accordingly, the fixing member 41, the blade member 13, and the pressing member 47 can be sandwiched between the blade base 14 and the head of the screw 48, and the blade member 13 and the fixing member 41 can be held on the blade base 14.

  As shown in FIG. 4, a spring member 50 is provided between the blade member 13 and the pressing member 47. The spring member 50 is elastically deformed by pressing the pressing member 47 toward the blade member 13 with the screw 48 or the like, and biases the blade member 13 toward the fixed member 41. Thereby, it can prevent that the blade member 13 attached to the blade base 14 rattles in the axial direction.

The pressing member 47 is formed with a convex portion 51 that is inserted into the insertion portion 46 of the blade member 13. Thereby, the blade member 13 and the pressing member 47 can be integrally rotated with respect to the blade base 14.
As shown in FIGS. 3, 5, and 6, the pressing member 47 is formed with a scale 52 that indicates the rotation position of the blade member 13 (particularly, the position of the outer peripheral edge of the blade member 13 that contacts the optical fiber 100). Yes. The scale 52 may indicate the positions of 16 positions on the outer peripheral edge of the blade member 13 in contact with the optical fiber 100 as in the illustrated example, but is not limited thereto. The scale 52 may be formed on the outer peripheral surface of the pressing member 47 as in the illustrated example, but is not limited thereto.

  The rotating member 42 can be engaged with the fixing member 41 (blade member 13) described above. In a state where the rotating member 42 is engaged with the fixing member 41, power can be transmitted to the fixing member 41 when the rotating member 42 is rotated, and the blade member 13 and the fixing member 41 can be rotated. . In the present embodiment, the rotating member 42 is disposed inside the base 110.

The power transmission between the blade member 13 and the rotation member 42 may not be released regardless of the rotation position (rotation angle) of the rotation member 42, for example. That is, the rotation member 42 may engage with the fixed member 41 regardless of the rotation position of the rotation member 42.
In the present embodiment, power transmission between the blade member 13 and the rotation member 42 is released according to the rotation position of the rotation member 42. That is, the rotation member 42 of the present embodiment is formed so as to be switched between an engagement state in which the rotation member 42 is engaged with the fixing member 41 and a disengagement state in which the rotation is not performed.

  More specifically, as shown in FIGS. 6 and 8, the rotating member 42 of the present embodiment includes an engaging portion 53 that engages with the fixing member 41 and a non-engaging state that does not engage with the fixing member 41. Part 54. The engaging portion 53 and the non-engaging portion 54 are arranged in the turning direction of the turning member 42. That is, in the rotating member 42 of this embodiment, the engaging part 53 is formed in a part of the circumferential direction. The number of the engaging parts 53 may be one, for example, and may be plural. When the number of the engaging portions 53 is plural, the plurality of engaging portions 53 may be arranged at equal intervals in the rotating direction of the rotating member 42. The number of the engaging parts 53 in this embodiment is two. Thereby, according to the rotation position of the rotation member 42, it can switch to the engagement state which the fixing member 41 and the rotation member 42 engage, and the isolation | separation state which does not engage.

The rotating member 42 of this embodiment is rotated by electromagnetic force. That is, the optical fiber cutting device 1 of the present embodiment includes a motor 55 (drive source) that rotates the rotation member 42. The motor 55 includes a motor main body 56, a motor shaft portion 57 that rotates with respect to the motor main body 56 by energization or the like, and a motor speed reducer 500. The motor 55 is fixed to the base 110 (base 10) via the attachment member 58 and the like.
In the present embodiment, the rotating member 42 is attached to the motor shaft portion 57. That is, the rotation member 42 of the present embodiment is attached to the base 10 via the motor 55 so as to be rotatable.

  In the present embodiment, the motor 55 operates by operating an operation switch 59 (for example, a push button switch) provided on the outer surface of the base 10 (the upper surface 10a of the base 110 in FIG. 1) as shown in FIG. . When the operation switch 59 is operated, the motor 55 rotates the rotation member 42 so that the blade member 13 rotates by a predetermined angle.

Moreover, the optical fiber cutting device 1 of this embodiment is provided with the rotation position measurement part 60 which measures the rotation position of the rotation member 42 and the motor shaft part 57, as shown to FIG.
In the present embodiment, the rotational position measuring unit 60 is arranged between the light emitting unit 61 and the light receiving unit 62 according to the rotational positions of the light emitting unit 61, the light receiving unit 62, the rotating member 42 and the motor shaft unit 57. And a shielding plate 63 that is positioned. The shielding plate 63 is formed in a semicircular shape centering on the axis A <b> 1 of the rotating member 42 and the motor shaft portion 57. The rotation positions of the rotation member 42 and the motor shaft portion 57 measured by the rotation position measuring unit 60 are used for controlling the motor 55 that rotates the rotation member 42 by a predetermined angle.

Furthermore, in the optical fiber cutting device 1 of the present embodiment, as shown in FIGS. 3, 5, 6, and 8-10, power transmission between the blade member 13 and the rotating member 42 is performed so that the blade base 14 is in a predetermined position. Only possible if moved. Hereinafter, this point will be specifically described.
In the present embodiment, as described above, the blade member 13 and the fixing member 41 are provided on the blade base 14, and the rotating member 42 is provided on the base 10. Further, the fixing member 41 and the rotating member 42 are arranged so as to be aligned in the moving direction of the blade base 14 (left-right direction in FIG. 8). Thereby, the rotation member 42 is engaged with the fixing member 41 only when the blade base 14 is moved to a predetermined position. Specifically, as shown in FIGS. 9, 10, the blade base 14 has a first position P <b> 1 where the fixing member 41 and the rotating member 42 can engage with each other as shown in FIGS. 3, 5, 6, and 8. The fixing member 41 and the rotating member 42 are movable between the second position P2 where they are not engaged with each other. That is, by moving the blade base 14 between the first position P1 and the second position P2, the fixed member 41 and the rotating member 42 are engaged with each other, and the disconnected state is not engaged with each other. And can be switched. 6, 8, and 10, since the blade base 14 is omitted, the first position P <b> 1 and the second position P <b> 2 of the blade base 14 are indicated by the blade member 13 attached to the blade base 14.

The first position P1 of the blade base 14 is a position after the blade base 14 is moved so as to damage the surface of the optical fiber 100 by the blade member 13 by closing the lid portion 17 with respect to the base 110, for example. Also good. As shown in FIGS. 1 and 2, the first position P <b> 1 of the blade base 14 in the present embodiment is a position where the blade base 14 has moved by opening the lid portion 17 with respect to the base portion 110.
On the other hand, the second position P2 of the blade base 14 may be arbitrary as long as the fixing member 41 is away from the rotating member 42 by the movement of the blade base 14 from the first position P1. The second position P2 of the blade base 14 in the present embodiment is a position after the blade base 14 is moved so that the surface of the optical fiber 100 is damaged by the blade member 13 by closing the lid portion 17 with respect to the base 110. It is.

The fixing member 41 and the rotating member 42 may be directly engaged, for example, but in this embodiment, are engaged via a relay member 64 as shown in FIGS. Similar to the fixing member 41, the relay member 64 is fixed to the blade base 14 so as to be rotatable. That is, the blade base 14 further includes a relay member 64. The axis of the relay member 64 is parallel to the axis A1 of the blade member 13.
The relay member 64 only needs to be arranged so as to be aligned in the moving direction of the blade base 14 with respect to at least the rotating member 42, and may be arranged at an arbitrary position with respect to the fixing member 41. In the present embodiment, the relay member 64 is disposed below the fixing member 41.

  In the above configuration, the rotation member 42 is engaged with the relay member 64, whereby the rotation of the rotation member 42 is transmitted to the relay member 64, and the relay member 64 rotates. Further, the rotation of the relay member 64 is transmitted to the fixing member 41, and the fixing member 41 rotates. That is, the blade member 13 rotates.

Further, in the optical fiber cutting device 1 of the present embodiment, the blade base 14 further includes a manual operation rotating member 65 (hereinafter referred to as an operation member 65). The operation member 65 is fixed to the blade base 14 so as to be rotatable. The operation member 65 rotates the blade member 13 by transmitting power by rotation by a user (an operator who handles the optical fiber cutting device 1). That is, the operation member 65 is a member that the user operates with fingers to manually rotate the blade member 13. The axis of the operation member 65 is parallel to the axis A1 of the blade member 13.
In this embodiment, the operation member 65 rotates the fixing member 41 by engaging with the fixing member 41 (blade member 13). For example, the operation member 65 may be directly engaged with the fixed member 41 or the rotating member 42, but in this embodiment, the operating member 65 is engaged with the fixed member 41 or the rotating member 42 via the relay member 64. The operation member 65 may be disposed at an arbitrary position with respect to the fixing member 41 and the relay member 64 so as not to interfere with the rotation member 42. In the present embodiment, the operation member 65 is disposed below the fixing member 41 and the relay member 64.

  The operation member 65 includes an operation unit 66 for operating with a user's finger. The operation unit 66 is formed in a disc shape. A plurality of depressions 67 are formed on the outer periphery of the operation unit 66. The plurality of depressions 67 are arranged at equal intervals in the circumferential direction of the operation unit 66. Each hollow portion 67 is formed in an arc shape when the operation portion 66 is viewed from the axial direction. Thereby, a user's fingertip can be fitted to the hollow part 67 and the operation member 65 can be easily rotated by a finger.

  In the above configuration, when the user operates and rotates the operation member 65, the rotation of the operation member 65 is transmitted to the relay member 64, and the relay member 64 rotates. Further, the rotation of the relay member 64 is transmitted to the fixing member 41, and the fixing member 41 rotates. That is, the blade member 13 rotates.

  As shown in FIGS. 2, 8, and 10, the operation member 65 is disposed inside the base 110, similarly to the fixing member 41 and the rotation member 42. However, the operation member 65 (particularly the operation unit 66) is exposed to the outside of the base 110 (base 10). That is, the base 110 further includes a window 10 </ b> D that exposes the operation member 65 to the outside of the base 110. The window 10D may be provided only on the side surface 10b of the base 110, for example, or may be provided on both the side surface 10b and the bottom surface 10c of the base 110. That is, the operation member 65 may be exposed only on the side surface 10b of the base 110, for example, or may be exposed on both the side surface 10b and the bottom surface 10c of the base 110. In the present embodiment, the window 10 </ b> D is provided on the bottom surface 10 c of the base 110. That is, the operation member 65 is exposed on the bottom surface 10 c of the base 110. Here, the side surface 10 b of the base 110 is a surface of the base 110 adjacent to the upper surface 10 a of the base 110, and the bottom surface 10 c of the base 110 is a surface of the base 110 facing away from the upper surface 10 a of the base 110. In the illustrated example, the operation portion 66 of the operation member 65 does not protrude from the bottom surface 10c (outer surface) of the base 110, but may protrude, for example.

  In the present embodiment, the operation member 65 of the blade base 14 is always exposed to the outside of the base 110 regardless of the position of the blade base 14 in the moving direction. That is, the operation member 65 is exposed to the outside of the base 110 regardless of whether the blade base 14 is disposed at the first position P1 or the second position P2.

  In the optical fiber cutting device 1 of the present embodiment, the base 110 (base 10) includes a misrotation prevention cover 68 that covers the operation member 65 exposed to the outside from the window 10D, for example, as shown in FIGS. Furthermore, you may have. For example, the cover 68 may be disposed so as to block only a part of the window 10D, but in the illustrated example, the cover 68 is disposed so as to block the entire window 10D. The cover 68 may be detachably attached to the base 110, or may be attached to the base 110 so as to open and close the window 10D of the base 110.

Moreover, the optical fiber cutting device 1 of the present embodiment includes a fixing member 41 (blade member 13), a rotation member 42, an operation member 65, and a relay member 64 as shown in FIGS. A holding mechanism 70 (latch mechanism) that holds at least one in a predetermined rotation position is further provided.
The holding mechanism 70 of this embodiment holds the fixing member 41 at a predetermined rotation position. The holding mechanism 70 is configured so that the fixed member 41 can be rotated from a predetermined rotation position when a movable torque of a predetermined value or more acts on the fixed member 41.

  The holding mechanism 70 is locked to any one locking portion 71 of the fixing member 41 by being elastically pressed against the outer periphery of the fixing member 41 and the plurality of locking portions 71 formed on the outer periphery of the fixing member 41. And a to-be-latched member 72. The plurality of locking portions 71 are arranged at equal intervals in the circumferential direction of the fixing member 41. The number of the locking portions 71 corresponds to the number of positions of the outer peripheral edge of the blade member 13 that contacts the optical fiber 100 (the number obtained by equally dividing the entire circumference of the outer peripheral edge). The number of the locking portions 71 in this embodiment is 16.

  When the locked member 72 is locked to any one of the locking portions 71, the fixing member 41 is held at a predetermined rotation position. Further, when a movable torque of a predetermined value or more acts on the fixed member 41, the locked member 72 moves against the elastic force of the locked member 72, so that the locked portion 71 and the locked member are moved. The locked state with the member 72 is released. Thereby, the fixing member 41 can be rotated from a predetermined rotation position.

Hereinafter, the holding mechanism 70 of the present embodiment will be described more specifically.
Each locking portion 71 may be, for example, a convex portion that protrudes outside the fixing member 41 in the radial direction, but in the present embodiment, it is a concave portion 73 that opens to the outside of the fixing member 41 in the radial direction. The concave portion 73 forming the locking portion 71 is formed in a V shape when the fixing member 41 is viewed from the axial direction. As shown in FIGS. 7, 8, and 10, the two inner side surfaces 73 a and 73 b of the recess 73 are inclined in opposite directions in the circumferential direction of the fixing member 41 with respect to the radial direction of the fixing member 41. The inclination angles of the two inner side surfaces 73a and 73b of the recess 73 with respect to the radial direction of the fixing member 41 are equal to each other. Thereby, the opening direction of the recessed part 73 which makes the latching | locking part 71 corresponds with the radial direction of the fixing member 41. FIG. The plurality of locking portions 71 constitute a locking gear 74.

As shown in FIGS. 5, 6, 8, and 10, the locked member 72 is a leaf spring formed in a strip shape. A first end portion in the longitudinal direction of the locked member 72 is fixed to the blade base 14. As shown in FIGS. 8 and 10, a locked portion 75 that is locked to the locking portion 71 of the fixing member 41 is formed at the second end in the longitudinal direction of the locked member 72.
The locked portion 75 may be a concave portion into which the locking portion 71 that is a convex portion can be inserted, for example. The locked portion 75 of the present embodiment is a convex portion 76 that can be inserted into the locking portion 71 that is the concave portion 73. The convex portion 76 forming the locked portion 75 is formed by bending a leaf spring. Although the convex part 76 may be formed in arbitrary shapes, in this embodiment, it is formed in the V shape corresponding to the concave part 73 formed in the fixing member 41.

  The convex portion 76 of the locked member 72 is inserted into the concave portion 73 of the fixing member 41 in a state where the locked member 72 is elastically bent and deformed. As a result, the locked portion 75 of the locked member 72 is elastically pressed against the outer periphery of the fixing member 41 by the elastic force of the locked member 72, and the locked portion 75 is locked to the locking portion 71. To do. In this state, when a movable torque of a predetermined value or more acts on the fixed member 41, the convex portion 76 of the locked member 72 is moved from the concave portion 73 of the fixed member 41 against the elastic force of the locked member 72. Pull out. Thereby, the latching state of the latching | locking part 71 and the to-be-latched part 75 is cancelled | released, and the fixing member 41 can be rotated from a predetermined rotation position.

  In the holding mechanism 70 described above, the magnitude of the movable torque that enables the fixing member 41 to rotate from a predetermined rotation position is, for example, the elastic force of the locked member 72 or the inner side surface 73a of the recess 73 of the fixing member 41. , 73b can be adjusted by changing the inclination angle.

  Further, in the optical fiber cutting device 1 of the present embodiment, as shown in FIG. 4, the upper portion of the fixing member 41, the operation member 65, and the relay member 64 attached to the blade base 14 is covered with the cover portion 80. . The cover portion 80 of the present embodiment includes a first cover portion 80A, a second cover portion 80B, and a third cover portion 80C. The first cover portion 80A covers a part of the fixing member 41 and the relay member 64 (particularly, a first relay gear 84A described later) from above. The second cover portion 80B covers the remaining portion of the relay member 64 (particularly, a second relay gear 84B described later) and a part of the operation member 65 (particularly the gear 83 of the operation member 65 described later) from above. The third cover portion 80C covers the operation portion 66 of the operation member 65 from above. The cover portion 80 may be integrally formed with the blade base 14 as in the illustrated example, but is not limited thereto.

Next, in the optical fiber cutting device 1 of the present embodiment, the engagement structure of the fixing member 41 (blade member 13), the rotation member 42, the operation member 65, and the relay member 64 will be described with reference to FIG. This will be specifically described.
In the present embodiment, the engaging structure of the fixing member 41, the rotating member 42, the operation member 65, and the relay member 64 (for example, the structure in which the fixing member 41 and the relay member 64 are engaged, the rotating member 42 and the relay member 64). And a structure in which the operation member 65 and the relay member 64 are engaged) are configured using gears. That is, the fixed member 41, the rotation member 42, the operation member 65, and the relay member 64 include gears 81, 82, 83, and 84, respectively.

4-7, the gear 81 of the fixing member 41 (hereinafter referred to as the rotation transmission gear 81) is directly engaged with the gear 82 of the rotation member 42 or the gear 83 of the operation member 65. However, in this embodiment, it engages with the gear 84 of the relay member 64. For example, the rotation transmission gear 81 may be formed separately from the locking gear 74 of the holding mechanism 70 described above and then fixed integrally. In the present embodiment, the rotation transmission gear 81 is formed integrally with the locking gear 74. . The rotation transmission gear 81 and the locking gear 74 are arranged in the axial direction of the fixed member 41.
The number of teeth of the rotation transmission gear 81 and the number of teeth of the locking gear 74 may be arbitrary. In the present embodiment, the number of teeth of the rotation transmission gear 81 is an integral multiple of the number of teeth of the locking gear 74. In the illustrated example, the number of teeth of the locking gear 74 is 16, and the number of teeth of the rotation transmission gear 81 is 32.

  In the fixing member 41 of the present embodiment, a partition wall portion 85 is formed between the rotation transmission gear 81 and the locking gear 74. The partition wall portion 85 is configured such that the gear 84 of the relay member 64 that engages with the rotation transmission gear 81 interferes with the locking gear 74 or the locked member 72 that locks with the locking gear 74 (particularly, the locked portion). 75) prevents the rotation transmission gear 81 from interfering.

In the present embodiment, as shown in FIGS. 6 and 8-10, the gear 82 of the rotating member 42 is engaged with the gear 84 of the relay member 64. The gear 82 of the rotating member 42 may be configured, for example, by arranging teeth on the entire circumference of the rotating member 42. The gear 82 of the rotating member 42 in the present embodiment is configured by forming teeth on a part of the rotating member 42 in the circumferential direction. That is, the gear 82 of the rotating member 42 in the present embodiment is an intermittent gear.
Of the gear 82 of the rotating member 42, the portion where the teeth are formed corresponds to the engaging portion 53 described above, and the portion where the teeth are not formed corresponds to the non-engaging portion 54 described above. The number of teeth constituting the same engaging portion 53 may be arbitrary, but is four in the present embodiment.

  The gear 82 of the rotating member 42 does not engage with the gear 84 of the relay member 64 when the motor 55 is stopped. That is, the rotating member 42 is arranged so that the non-engaging portion 54 faces the gear 84 of the relay member 64, and does not contact the relay member 64. The gear 82 of the rotating member 42 engages with the gear 84 of the relay member 64 only when being rotated by the motor 55.

  In the rotating member 42 of the present embodiment, the two engaging portions 53 are arranged at equal intervals in the circumferential direction of the rotating member 42 as described above. For this reason, every time the operation switch 59 is operated, the rotation member 42 rotates 180 degrees by the driving force of the motor 55 and stops at a rotation position where the rotation member 42 does not engage with the relay member 64. When the number of the engaging portions 53 is one, the rotating member 42 is rotated 360 degrees by the driving force of the motor 55 every time the operation switch 59 is operated, and is not engaged with the relay member 64. Stop at the moving position.

  In the present embodiment, as shown in FIGS. 4 and 6, the gear 83 of the operation member 65 is engaged with the gear 84 of the relay member 64. The gear 83 of the operation member 65 may be formed and fixed separately from the operation unit 66 described above, for example, but is formed integrally with the operation unit 66 in this embodiment. The gear 83 and the operation portion 66 of the operation member 65 are arranged in the axial direction of the operation member 65. The number of teeth of the gear 83 of the operation member 65 may be arbitrary.

  The number of gears 84 (hereinafter referred to as the relay gear 84) of the relay member 64 may be one, for example, but in the present embodiment, it is two as shown in FIGS. . The two relay gears 84 and 84 may be formed integrally, for example, but in the present embodiment, they are formed separately and then fixed to each other. The two relay gears 84 and 84 are arranged in the axial direction of the relay member 64.

  The diameter and the number of teeth of the two relay gears 84 and 84 are different from each other. Of the two relay gears 84, 84, the first relay gear 84 </ b> A engages with the rotation transmission gear 81 of the fixed member 41. The second relay gear 84B engages with the gear 82 of the rotating member 42 and the gear 83 of the operation member 65 at different positions in the circumferential direction. In the present embodiment, the first relay gear 84A has a smaller diameter than the second relay gear 84B, and the first relay gear 84A has fewer teeth than the second relay gear 84B.

  The specific number of teeth of the first relay gear 84A and the number of teeth of the second relay gear 84B may be arbitrary. In the present embodiment, the number of teeth of the second relay gear 84B is an integral multiple of the number of teeth of the first relay gear 84A. In the illustrated example, the number of teeth of the first relay gear 84A is 16, and the number of teeth of the second relay gear 84B is 32.

Next, an example of the operation | movement which changes the position of the outer peripheral part of the blade member 13 which contacts the optical fiber 100 in the optical fiber cutting device 1 of this embodiment is demonstrated.
In the present embodiment, as shown in FIGS. 3, 5, 6, and 8, the blade member 13 can be rotated using the driving force of the motor 55 in a state where the blade base 14 is disposed at the first position P1. it can. In this case, the user may operate an operation switch 59 (see FIG. 1) provided on the base 10.

  When the user operates the operation switch 59, the motor 55 rotates the rotation member 42. The motor 55 may rotate the rotating member 42 clockwise or counterclockwise. In the present embodiment, the motor 55 rotates the rotating member 42 by 180 degrees. The rotation of the rotation member 42 is transmitted to the fixed member 41 via the relay member 64. Here, since a movable torque of a predetermined value or more acts on the fixing member 41, the locking state between the locking portion 71 (one locking portion 71) of the fixing member 41 and the locked member 72 by the holding mechanism 70. Is released. Thereby, the fixing member 41 and the blade member 13 are rotated in a direction corresponding to the rotation direction of the rotation member 42.

  Here, the engaging portion 53 of the rotating member 42 that engages with the relay member 64 is formed only in a part of the rotating member 42 in the circumferential direction. Therefore, the engaging portion 53 of the rotating member 42 is temporarily engaged with the relay member 64 while the rotating member 42 rotates 180 degrees, and the relay member 64 and the fixing member that engages with the relay member 64. 41 is rotated by a predetermined angle. At this time, the predetermined angle at which the fixing member 41 rotates corresponds to the contact length of the blade member 13 that contacts the optical fiber 100 when the optical fiber 100 is damaged by the blade member 13. That is, the blade member 13 can be rotated by an angle unit corresponding to the contact length of the blade member 13 by rotating the rotation member 42 by 180 degrees.

  In the state after the fixing member 41 and the blade member 13 are rotated as described above, the locked member 72 of the holding mechanism 70 is locked to another locking portion 71 adjacent to the one locking portion 71. That is, the fixing member 41 and the blade member 13 are held by the holding mechanism 70 so as not to rotate. Further, the rotating member 42 stops at a rotating position where it does not engage with the relay member 64. In other words, the rotating member 42 is disposed such that the non-engaging portion 54 faces the relay member 64, and the power transmission between the blade member 13 and the rotating member 42 is released.

Moreover, in the optical fiber cutting device 1 of the present embodiment, as shown in FIGS. 3, 5, 6, and 8-10, the user can place the blade base 14 at either the first position P1 or the second position P2. However, by operating the operating portion 66 of the operating member 65, the blade member 13 can be manually rotated. The operation member 65 can be rotated clockwise or counterclockwise.
When the user rotates the operation member 65, the rotation of the operation member 65 is transmitted to the fixed member 41 via the relay member 64. Here, when a movable torque of a predetermined value or more acts on the fixing member 41, the locking state between the locking portion 71 (one locking portion 71) of the fixing member 41 and the locked member 72 by the holding mechanism 70 is released. Is done. Thereby, the fixing member 41 and the blade member 13 are rotated in a direction corresponding to the rotation direction of the operation member 65.

Thereafter, when the blade member 13 is rotated by an angle unit corresponding to the contact length, the locked member 72 is locked to another locking portion 71 adjacent to the one locking portion 71 by its own elastic force, The fixing member 41 and the blade member 13 are held by the holding mechanism 70 so as not to rotate.
The user senses the vibration or sound generated when the locked member 72 is locked to another locking portion 71 with his / her fingers or ears, so that the blade member 13 is rotated by an angular unit corresponding to the contact length. I can know that. The user can also know the rotational position of the blade member 13 by visually recognizing the scale 52 formed on the pressing member 47. That is, even if the blade member 13 is manually rotated, the blade member 13 can be rotated by an angle unit corresponding to the contact length of the blade member 13.

  When the blade member 13 is manually rotated as described above, the rotation member 42 is stopped at the rotation position that does not engage with the relay member 64 as described above. For this reason, as shown in FIGS. 6 and 8, even if the blade base 14 is disposed at the first position P <b> 1, the rotation of the operation member 65 is not transmitted from the relay member 64 to the rotation member 42. That is, even if the operation member 65 is rotated, it is possible to prevent the motor 55 from being loaded.

  In the present embodiment, the user operates the operation switch 59 continuously or continues to rotate the operation member 65, so that the blade member 13 is an integral multiple (2 times, 3 times, etc.) of the contact length. It can also be rotated by an angle corresponding to the length. Thereby, when there is a defect such as a chip in the predetermined region of the outer peripheral edge of the blade member 13, the predetermined region of the blade member 13 is simplified so that the predetermined region of the blade member 13 is not used for scratching the optical fiber 100. You can skip to.

As described above, according to the optical fiber cutting device 1 of the present embodiment, the blade member 13 is fixed to the blade base 14 so as to be rotatable, and the rotation member 42 that rotates the blade member 13 is the base. 10 is fixed so as to be rotatable. For this reason, when the rotation of the blade member 13 is driven by a drive source such as the motor 55, the drive source may be connected to the rotation member 42 provided on the base 10. That is, the drive source can be provided on the base 110 (base 10). Therefore, it is possible to simplify the mechanism for rotating the blade member 13, such as shortening the wiring (electrical wiring) for connecting to the drive source.
Further, as compared with the case where the driving source such as the motor 55 is provided on the blade base 14 that moves with respect to the base 110 (base 10), the deterioration of the driving source and wiring can be suppressed.

  Further, according to the optical fiber cutting device 1 of the present embodiment, the mechanism (transmission mechanism) that transmits the driving force of the driving source from the rotating member 42 and rotates the blade member 13 is configured only by the rotating member. can do. In the present embodiment, the transmission mechanism is configured only by rotating members (fixing member 41, rotating member 42, operation member 65, relay member 64). For this reason, for example, as in Patent Document 1, the transmission mechanism described above converts a rotational motion of the drive source into a linear motion of the operating pin, or converts a linear motion of the operating pin into a rotational motion of the blade member. As compared with the case where the mechanism is included, it is possible to suitably suppress the occurrence of a problem in the transmission mechanism. Further, the transmission mechanism can be configured simply as compared with the case including the motion conversion mechanism described above.

Moreover, in the optical fiber cutting device 1 of the present embodiment, power transmission between the blade member 13 provided on the blade base 14 and the rotating member 42 provided on the base 10 can be released. For this reason, by canceling the power transmission between the blade member 13 and the rotation member 42, it is possible to prevent a load from being applied to the drive source such as the motor 55 even if the blade member 13 is manually rotated. That is, the drive source can be protected.
Further, even if a malfunction occurs in a drive source such as the motor 55, a power source (for example, a battery) for driving the drive source, a control circuit, or the like, power transmission between the blade member 13 and the rotating member 42 is performed. By releasing, the blade member 13 can be manually rotated.

  Further, in the optical fiber cutting device 1 of the present embodiment, power transmission between the blade member 13 and the rotating member 42 is possible only when the blade base 14 is moved to a predetermined position (first position P1). . For this reason, by arranging the blade base 14 at a position other than the predetermined position (second position P2), the load is not applied to the drive source such as the motor 55, and even if a problem occurs in the drive source or the like, the blade The member 13 can be manually rotated.

  Further, in the optical fiber cutting device 1 of the present embodiment, the power transmission between the blade member 13 and the rotation member 42 is released according to the rotation position of the rotation member 42. Specifically, the rotating member 42 has an engaging portion 53 that engages with the fixing member 41 and a non-engaging portion 54 that does not engage with the fixing member 41 arranged in the rotating direction of the rotating member 42. Configured. For this reason, even if the blade base 14 is arranged at the first position P <b> 1, the engagement state in which the fixed member 41 and the rotation member 42 are engaged according to the rotation position of the rotation member 42, and the engagement Can be switched to a disconnected state. That is, even if the blade base 14 is arranged at the first position P1, the blade member 13 is not affected even if a load is applied to the drive source connected to the rotating member 42 and a problem occurs in the drive source or the like. It can be manually rotated.

Further, according to the optical fiber cutting device 1 of the present embodiment, the power transmission between the blade member 13 and the rotating member 42 is released in a state where the drive source such as the motor 55 is stopped. Specifically, the rotating member 42 is disposed such that the non-engaging portion 54 faces the relay member 64 and the fixing member 41. For this reason, the rotating member 42 does not come into contact with the relay member 64 or the fixing member 41. Thus, manual operation and driving are performed without performing an operation (for example, an operation of moving the blade base 14 from the first position P1 to the second position P2) to switch the fixing member 41 and the rotating member 42 from the engaged state to the disconnected state. The blade member 13 can be rotated by any driving by the source.
Moreover, when the blade base 14 is moved from the second position P2 to the first position P1, it is possible to prevent the turning member 42 from colliding with the relay member 64 and the fixing member 41. Therefore, the rotation member 42, the relay member 64, and the fixing member 41 can be protected.

Further, according to the optical fiber cutting device 1 of the present embodiment, the blade base 14 has the operation member 65 that transmits the power by the rotation of the user and rotates the blade member 13. The base 10 has a window 10D that exposes the operation member 65 of the blade base 14 accommodated therein. For this reason, the blade member 13 can be manually rotated at a position away from the blade member 13. Thereby, when rotating the blade member 13 manually, it can suppress that a user's hand touches the blade member 13. FIG.
Further, when the operation member 65 is exposed to the bottom surface 10c and the side surface 10b of the base 110 facing in a direction different from the top surface 10a of the base 110 where the blade member 13 is exposed, when the blade member 13 is manually rotated, It is possible to further suppress the user's hand from touching the blade member 13.

  Further, in the optical fiber cutting device 1 of the present embodiment, when the base 10 has a cover 68 for preventing erroneous rotation that covers the operation member 65 of the blade base 14 accommodated therein, the operation member 65 is unexpectedly formed. It is possible to prevent the blade member 13 from rotating unintentionally due to an external force.

  Further, the optical fiber cutting device 1 of the present embodiment includes a holding mechanism 70 that holds the fixing member 41 at a predetermined rotation position. Thereby, it can suppress that the blade member 13 rotates unexpectedly.

  In addition, the holding mechanism 70 according to the present embodiment has a plurality of locking portions 71 arranged on the outer periphery of the fixing member 41 and is elastically pressed against the outer periphery of the fixing member 41 so that any one of the locking portions 71 is pressed. A locked member 72 to be locked. Furthermore, when a movable torque of a predetermined value or more acts on the fixed member 41, the locked state between the locking portion 71 and the locked member 72 is released. Thereby, the fixed member 41 and the blade member 13 can be rotated by applying a movable torque of a predetermined value or more to the fixed member 41. Further, the blade member 13 can be held at a plurality of rotational positions.

Further, when the user manually rotates the blade member 13, the user can feel vibrations and sounds generated when the locked member 72 is locked to another locking portion 71 with fingers or ears. Thereby, the user can recognize that the rotation position of the blade member 13 has changed by the touch of a finger or the like.
The effects related to the above-described holding mechanism 70 can be similarly achieved even when the holding mechanism 70 is configured to hold the rotating member 42, the operation member 65, and the relay member 64 at predetermined rotating positions.

  Further, in the optical fiber cutting device 1 of the present embodiment, the number of teeth of the rotation transmission gear 81 in the fixed member 41 is an integral multiple of the number of teeth of the locking gear 74 and the first relay gear 84A in the relay member 64. Is an integral multiple of the number of teeth of the second relay gear 84B. Therefore, even if the gear 82 of the rotating member 42 and the second relay gear 84B are not always engaged, the locked member 72 is locked to the locking portion 71 of the locking gear 74. The second relay gear 84B is rotated at a position where the gear 82 of the rotating member 42 and the second relay gear 84B are correctly engaged (the teeth of the gear 82 of the rotating member 42 are between the teeth of the second relay gear 84B). Can be placed in a position where it can enter smoothly.

Thereby, when the gear 82 of the rotating member 42 rotates, it is possible to prevent the teeth of the gear 82 of the rotating member 42 and the teeth of the second relay gear 84B from colliding with each other. It is possible to prevent the rotation member 42 and the relay member 64 from being unable to rotate due to collision between the teeth of the gear 82 of the rotation member 42 and the tips of the teeth of the second relay gear 84B.
Even if the engaging portion 53 of the rotating member 42 is disposed so as to face the gear 84 of the relay member 64 in a state where the motor 55 is stopped, the blade base 14 is moved from the second position P2. It is also possible to prevent the teeth of the gear 82 of the rotating member 42 and the teeth of the second relay gear 84B from colliding with each other when moved to the first position P1.
Therefore, the gear 82 and the second relay gear 84B of the rotating member 42 can be protected.

  Further, according to the optical fiber cutting device 1 of the present embodiment, the upper portion of the fixing member 41, the operation member 65, and the relay member 64 attached to the blade base 14 is covered by the cover portion 80. For this reason, it can suppress suitably that a foreign material arrives at the fixing member 41, the operation member 65, and the relay member 64. FIG. In particular, fiber scraps generated when the surface of the optical fiber 100 is damaged by the blade member 13 above the fixing member 41, the operation member 65, and the relay member 64 reach the fixing member 41, the operation member 65, and the relay member 64. It can suppress suitably. Thereby, it can suppress that a malfunction arises in the mutual engagement state of the fixing member 41, the rotation member 42, the operation member 65, and the relay member 64 based on foreign materials, such as fiber waste. Therefore, it is possible to suppress the transmission of the rotation from the rotation member 42 or the operation member 65 to the fixed member 41 from being obstructed by the foreign matter.

  Although the details of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  In the optical fiber cutting device of the present invention, the operation member may be exposed to the outside from the window of the base only when the blade base is moved to a predetermined position, for example. For example, as illustrated in FIGS. 11 and 12, the operation member 65 is not exposed to the outside from the window 10 </ b> E of the base 110 (base 10) with the blade base 14 (blade member 13) disposed at the first position P <b> 1. The blade base 14 (blade member 13) may be exposed to the outside from the window 10E of the base 110 in a state where the blade base 14 (blade member 13) is disposed at the second position P2. Further, the operation member 65 is not exposed to the outside from the window 10E of the base 110 in a state where the blade base 14 (blade member 13) is disposed at the second position P2, for example, and the blade base 14 (blade member 13) is the first. You may expose outside from the window 10E of the base 110 in the state arrange | positioned in the position P1.

  In order to expose the operation member 65 to the outside from the window 10E of the base 110 (base 10) as described above, for example, the size of the window 10E of the base 110 may be adjusted. Specifically, the length dimension of the window 10E of the base 110 in the moving direction of the blade base 14 may be made shorter than the window 10D of the base 110 of the above embodiment illustrated in FIGS. Further, in order to expose the operation member 65 to the outside of the base 110 as described above, for example, a cover that covers only a part of the window 10D of the base 110 illustrated in FIGS.

When the operating member 65 is exposed to the outside from the window 10E (window 10D) of the base 10 only when the blade base 14 is arranged at a predetermined position, when the blade base 14 is arranged at a position other than the predetermined position, It is possible to prevent the blade member 13 from unintentionally rotating due to an external force acting on the operation member 65.
Further, when the operating member 65 is exposed to the outside of the base 110 only when the blade base 14 is disposed at the second position P2 where the fixing member 41 and the rotating member 42 are not engaged with each other, the operating member 65 is When the blade member 13 is rotated by the operation, it is possible to reliably prevent the rotation member 42 from rotating and applying a load to the drive source such as the motor 55.

The optical fiber cutting device of the present invention includes, for example, one rotation of at least one of a blade member (fixing member), a rotation member, an operation member, and a relay member that can be rotated. A rotation restricting mechanism (ratchet mechanism) that restricts rotation in the movement direction (first rotation direction) and allows rotation in the other rotation direction (second rotation direction) may be provided.
The rotation restricting mechanism may be provided separately from the holding mechanism, for example, or may be included in the holding mechanism 70F as shown in FIG.

  In the holding mechanism 70F illustrated in FIG. 13, the opening direction of the recess 73F forming the locking portion 71F of the locking gear 74F is the first rotation direction RF1 (with respect to the radial direction of the fixed member 41F (rotatable member)). It is inclined in the counterclockwise direction in FIG. Specifically, the front inner side surface 73Fa located on the front side of the first rotation direction RF1 of the two inner side surfaces 73Fa and 73Fb of the concave portion 73F formed in a V shape has a radial direction of the fixing member 41F. It is greatly inclined toward the first rotation direction RF1. The rear inner side surface 73Fb located on the rear side of the first rotation direction RF1 in the recess 73F may extend in the radial direction of the fixing member 41F without being inclined with respect to the radial direction of the fixing member 41F, for example. Further, the rear inner side surface 73Fb may be inclined toward the first rotation direction RF1 with a smaller inclination angle than the front inner side surface 73Fa with respect to the radial direction of the fixing member 41F, for example. That is, the locking gear 74F of the holding mechanism 70F constitutes a ratchet gear 91F. In the holding mechanism 70F, the convex portion 76F forming the locked portion 75F of the locked member 72F may be formed in any shape as long as it can be inserted into the concave portion 73F forming the locking portion 71F. It is formed in a V shape corresponding to the shape of 73F.

In the holding mechanism 70F configured as described above, the blade member 13 is allowed to rotate in the second rotation direction RF2 (clockwise direction in FIG. 13), and the rotation in the first rotation direction RF1 is allowed. Be regulated. That is, the holding mechanism 70F illustrated in FIG. 13 includes a rotation restricting mechanism 90F.
Since the optical fiber cutting device includes the above-described rotation restricting mechanism 90F, a predetermined region of the outer peripheral edge portion of the blade member 13 that has been damaged by scratching the surface of the optical fiber 100 is erroneously added to the optical fiber 100 again. It can suppress being used for a wound.

  In the optical fiber cutting device of the present invention, the mutual engagement structure of the blade member (fixing member), the rotating member, the operation member, and the relay member is not limited to being configured using gears. You may comprise using a belt etc.

  In the optical fiber cutting device of the present invention, power transmission between the blade member (fixing member) or the operation member and the rotating member is released when, for example, the torque acting on the blade member or the operation member becomes a predetermined position or more. May be. That is, the optical fiber cutting device according to the present invention, for example, a torque for releasing the power transmission between the blade member or the operation member and the rotating member when the torque acting on the blade member or the operation member becomes a predetermined position or more. You may provide a limiter part. For example, the torque limiter unit may use a frictional force or may use a magnetic force.

When the torque limiter unit uses frictional force, the torque limiter unit is configured to engage, for example, a rotating member and a relay member or blade member (fixed member) by frictional force, an operation member and a relay member or blade. The member (fixing member) may be engaged with the frictional force. Further, when the blade member (fixing member) and the operation member are engaged with each other by being connected by the belt wound around them, the torque limiter portion using the frictional force is, for example, a friction between the rotating member and the belt. The structure which engages with force may be sufficient.
When the torque limiter unit uses magnetic force, the torque limiter unit may be a magnetic coupling provided on, for example, a blade member (fixing member), an operation member, a rotating member, or a relay member.

When the optical fiber cutting device includes the above-described torque limiter unit, it is assumed that the blade base is disposed at the first position, and the blade member (fixing member), the operation member, and the rotating member are engaged. The rotation of the blade member (fixed member) and the operating member can be prevented from being transmitted to the rotating member when the movable torque acting on the blade member (fixed member) and the operating member becomes a predetermined value or more. . Thereby, when the blade member (fixing member) or the operation member is manually rotated, the load applied to the drive source such as a motor connected to the rotation member can be reduced, and the drive source can be protected. . In particular, when the predetermined value is set to be equal to or lower than the torque required for rotation of the shaft portion (motor shaft portion) of a drive source such as a motor, the drive source when the blade member (fixing member) or the operation member is manually rotated. It is possible to prevent the shaft portion from rotating. Therefore, the drive source can be reliably protected. Moreover, even if a problem occurs in the drive source or the like, the blade member can be manually rotated.
Further, when the optical fiber cutting device is provided with a torque limiter unit, an operation for releasing the power transmission between the blade member (fixing member) or the operation member and the rotating member (for example, moving the blade base from the first position to the second position). The blade member can be rotated either manually or driven by a drive source without performing the movement operation.

DESCRIPTION OF SYMBOLS 1 ... Optical fiber cutting device, 10 ... Base, 10a ... Upper surface, 10b ... Side surface, 10c ... Bottom surface, 10D, 10E ... Window, 11, 12 ... Clamp, 11A, 12A ... Lower clamp, 11B, 12B ... Upper clamp, DESCRIPTION OF SYMBOLS 13 ... Blade member, 14 ... Blade base (blade member moving base), 15 ... Pushing member, 17 ... Lid part, 41, 41F ... Fixing member (blade member fixing member), 42 ... Turning member, 53 ... Engagement , 54 ... non-engagement part, 55 ... motor (drive source), 64 ... relay member, 65 ... operation member (rotating member for manual operation), 68 ... cover, 70, 70F ... holding mechanism, 71, 71F ... Locking portion, 72, 72F ... member to be locked, 73, 73F ... concave portion, 74, 74F ... locking gear, 75, 75F ... locked portion, 76, 76F ... convex portion, 81 ... rotation transmission gear ( The gear of the fixing member 41), 82: the gear of the rotating member 42, 83: the operation The gear of the member 65, 84 ... the relay gear (the gear of the relay member 64), 84A ... the first relay gear, 84B ... the second relay gear, 90F ... the rotation restricting mechanism, 91F ... the ratchet gear, 100 ... the optical fiber, 110 ... base

Claims (11)

A base having a pair of clamps spaced apart in the longitudinal direction of the optical fiber;
A blade member moving table having a disk-shaped blade member, moving the blade member between the pair of clamps, and bringing the surface of the optical fiber into contact with the outer peripheral edge of the blade member, ,
A pressing member that presses and bends the scratched portion of the optical fiber to cut the optical fiber;
With
The blade member is fixed to be rotatable with respect to the blade member moving base in order to change the position of the outer peripheral edge portion in contact with the optical fiber,
The base has a rotating member fixed to the base so as to be rotatable,
It is possible to engage the blade member and the rotating member,
The blade member can be rotated by rotating the rotating member in a state where the blade member and the rotating member are engaged,
An optical fiber cutting device capable of releasing the engagement between the blade member and the rotating member.   The optical fiber cutting device according to claim 1, wherein the blade member and the rotating member can be engaged only when the blade member moving base moves to a predetermined position.   The optical fiber cutting device according to claim 1 or 2, wherein the engagement between the blade member and the rotating member is released according to a rotating position of the rotating member. A base having a pair of clamps spaced apart in the longitudinal direction of the optical fiber;
A blade member moving table having a disk-shaped blade member, moving the blade member between the pair of clamps, and bringing the surface of the optical fiber into contact with the outer peripheral edge of the blade member, ,
A pressing member that presses and bends the scratched portion of the optical fiber to cut the optical fiber;
With
The blade member is fixed to be rotatable with respect to the blade member moving base in order to change the position of the outer peripheral edge portion in contact with the optical fiber,
The base has a rotating member fixed to the base so as to be rotatable,
When the rotating member is rotated, the blade member can be rotated by transmitting power from the rotating member to the blade member,
Power transmission between the blade member and the rotating member can be released,
An optical fiber cutting device in which power transmission between the blade member and the rotating member is released when a torque acting on the blade member becomes a predetermined value or more. A base having a pair of clamps spaced apart in the longitudinal direction of the optical fiber;
A blade member moving table having a disk-shaped blade member, moving the blade member between the pair of clamps, and bringing the surface of the optical fiber into contact with the outer peripheral edge of the blade member, ,
A pressing member that presses and bends the scratched portion of the optical fiber to cut the optical fiber;
With
The blade member is fixed to be rotatable with respect to the blade member moving base in order to change the position of the outer peripheral edge portion in contact with the optical fiber,
The base has a rotating member fixed to the base so as to be rotatable,
When the rotating member is rotated, the blade member can be rotated by transmitting power from the rotating member to the blade member,
Power transmission between the blade member and the rotating member can be released,
The blade member moving table further includes a manual operation rotating member that is fixed to the blade member moving table so as to be rotatable, and transmits power by rotating by a user to rotate the blade member.
The said base is an optical fiber cutting device which further has a window which exposes the said rotation member for manual operation of the said blade member moving base accommodated in the exterior to the exterior.   The optical fiber cutting device according to claim 5, wherein the window is provided on a bottom surface and / or a side surface of the base.   The optical fiber cutting device according to claim 5, wherein the base further includes a cover for preventing erroneous rotation that covers the rotating member for manual operation.   The optical fiber cutting device according to any one of claims 5 to 7, wherein the manual operation turning member is exposed to the outside through the window only when the blade member moving base is moved to a predetermined position.   The optical fiber cutting device according to any one of claims 1 to 8, further comprising a holding mechanism that holds at least one of the blade member and the rotating member at a predetermined rotating position.   9. The holding mechanism for holding at least one of the blade member, the rotating member, and the manual operation rotating member at a predetermined rotating position. 9. Optical fiber cutting device.   The optical fiber cutting device according to any one of claims 1 to 10, wherein the rotating member is rotated by electromagnetic force.

Images