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EP-4735936-A1 - OPTICAL FIBER CUTTING DEVICE

EP4735936A1EP 4735936 A1EP4735936 A1EP 4735936A1EP-4735936-A1

Abstract

An optical fiber cutting device includes a pedestal part and a main body part. A fiber holder holding an optical fiber is placeable on the pedestal part. The main body part includes a scratching blade scratching the optical fiber. The main body part includes a first attaching portion and a second attaching portion to which the pedestal part is attachable. In a state in which the scratching blade is at a position to scratch the optical fiber, the first attaching portion and the second attaching portion are positioned on opposite sides from each other with respect to the scratching blade, and the first attaching portion, the scratching blade, and the second attaching portion are arranged in one direction.

Inventors

  • Sagae shutA
  • IWAMATSU MAKOTO

Assignees

  • Fujikura Ltd.

Dates

Publication Date
20260506
Application Date
20240627

Claims (14)

  1. An optical fiber cutting device comprising: a pedestal part on which a fiber holder holding an optical fiber is placeable; and a main body part including a scratching blade scratching the optical fiber, wherein the main body part includes a first attaching portion and a second attaching portion to which the pedestal part is attachable, and, in a state in which the scratching blade is at a position to scratch the optical fiber, the first attaching portion and the second attaching portion are positioned on opposite sides from each other with respect to the scratching blade, and the first attaching portion, the scratching blade, and the second attaching portion are arranged in one direction.
  2. The optical fiber cutting device according to claim 1, wherein the pedestal part has a placement surface on which the fiber holder is placed, the main body part includes a clamp clamping the optical fiber, the clamp has a clamping surface supporting the clamped optical fiber, the placement surface when the pedestal part is attached to the first attaching portion and the placement surface when the pedestal part which has been attached to the first attaching portion is attached to the second attaching portion are substantially parallel to the clamping surface, and a distance between the placement surface and the clamping surface when the pedestal part is attached to the first attaching portion is substantially equal to a distance between the placement surface and the clamping surface when the pedestal part which has been attached to the first attaching portion is attached to the second attaching portion.
  3. The optical fiber cutting device according to claim 2, wherein the pedestal part has a first positioning surface parallel to the placement surface, the first attaching portion has a first attaching portion surface parallel to the first positioning surface, the second attaching portion has a second attaching portion surface parallel to the first positioning surface, the first positioning surface and the first attaching portion surface are in surface contact when the pedestal part is attached to the first attaching portion, and the first positioning surface and the second attaching portion surface are in surface contact when the pedestal part is attached to the second attaching portion.
  4. The optical fiber cutting device according to claim 3, wherein the pedestal part includes a first pressing part pressing the first positioning surface against the first attaching portion surface or the second attaching portion surface when the pedestal part is attached to the first attaching portion or the second attaching portion.
  5. The optical fiber cutting device according to claim 3 or 4, wherein the pedestal part has two or more first positioning surfaces.
  6. The optical fiber cutting device according to claim 5, wherein the pedestal part includes: a first side edge portion positioned on one side in a cross direction intersecting a direction in which the pedestal part is attached to the first attaching portion or the second attaching portion; and a second side edge portion positioned on a side opposite to the first side edge portion in the cross direction, and the pedestal part has the first positioning surface provided on the first side edge portion, and the first positioning surface provided on the second side edge portion.
  7. The optical fiber cutting device according to claim 1, wherein the pedestal part has a placement surface on which the fiber holder is placeable, the pedestal part includes a protruding portion protruding in a first direction or a second direction, the first direction being a direction parallel to the placement surface among attaching directions in which the pedestal part is attached to the first attaching portion or the second attaching portion and a second direction being a direction intersecting the placement surface among the attaching directions, the first attaching portion has a first fitting recessed portion into which the protruding portion is fitted when the pedestal part is attached, and the second attaching portion has a second fitting recessed portion into which the protruding portion is fitted when the pedestal part is attached.
  8. The optical fiber cutting device according to any one of claims 2 to 6, wherein the pedestal part includes a protruding portion protruding in a first direction or a second direction, the first direction being a direction parallel to the placement surface among attaching directions in which the pedestal part is attached to the first attaching portion or the second attaching portion, and a second direction being a direction intersecting the placement surface among the attaching directions, the first attaching portion has a first fitting recessed portion into which the protruding portion is fitted when the pedestal part is attached, and the second attaching portion has a second fitting recessed portion into which the protruding portion is fitted when the pedestal part is attached.
  9. The optical fiber cutting device according to claim 7 or 8, wherein a cross-sectional shape of the protruding portion perpendicular to the first direction is a circular shape, and a cross-sectional shape of the first fitting recessed portion or the second fitting recessed portion perpendicular to the first direction is an oval shape with a major axis thereof extending in a direction intersecting the placement surface.
  10. The optical fiber cutting device according to any one of claims 1 to 9, wherein the pedestal part has a second positioning surface intersecting a first direction which is a direction parallel to the placement surface among attaching directions in which the pedestal part is attached to the first attaching portion or the second attaching portion, the first attaching portion has a first attaching portion side surface which is in surface contact with the second positioning surface when the pedestal part is attached, and the second attaching portion has a second attaching portion side surface which is in surface contact with the second positioning surface when the pedestal part is attached.
  11. The optical fiber cutting device according to claim 10, wherein in a state in which the scratching blade is at a position to scratch the optical fiber, a distance between the first attaching portion side surface and the scratching blade in a normal direction of the first attaching portion side surface is substantially equal to a distance between the second attaching portion side surface and the scratching blade in a normal direction of the second attaching portion side surface.
  12. The optical fiber cutting device according to claim 10 or 11, wherein the pedestal part includes a second pressing part pressing the second positioning surface against the first attaching portion side surface or the second attaching portion side surface when the pedestal part is attached to the first attaching portion or the second attaching portion.
  13. The optical fiber cutting device according to any one of claims 1 to 12, further comprising a waste bin part having an accommodating space which is capable of accommodating fiber scraps generated from the optical fiber and being attachable to either the first attaching portion or the second attaching portion.
  14. The optical fiber cutting device according to claim 13, wherein the waste bin part includes a third pressing part pressing the waste bin part against the first attaching portion or the second attaching portion when the waste bin part is attached to the first attaching portion or the second attaching portion.

Description

OPTICAL FIBER CUTTING DEVICE The present invention relates to an optical fiber cutting device. 　　Priority is claimed on Japanese Patent Application No. 2023-104994 filed on June 27, 2023, the content of which is incorporated herein by reference. Patent Document 1 discloses an optical fiber cutting device including a main body part provided with a scratching blade for scratching an optical fiber, a fiber holder holding the optical fiber, and a lid connected to the main body part to be openable and closable. A user grips the optical fiber to be cut with one hand and sets the gripped optical fiber in the fiber holder. Thereafter, the optical fiber is pressed against the scratching blade by closing the lid with the other hand. Thereby, the optical fiber is scratched and cut. FIG. 1 is a perspective view of an optical fiber cutting device according to an embodiment of the present invention in a first attaching state.FIG. 2 is an exploded view illustrating the optical fiber cutting device of FIG. 1.FIG. 3 is a perspective view of the optical fiber cutting device according to the embodiment of the present invention in a second attaching state.FIG. 4 is an exploded view illustrating the optical fiber cutting device of FIG. 3.FIG. 5 is a view illustrating an attaching portion according to the embodiment of the present invention.FIG. 6 is a view of the attaching portion in FIG. 5 from an arrow VI.FIG. 7 is a view illustrating a pedestal part according to the embodiment of the present invention.FIG. 8 is a view in which the pedestal part of FIG. 7 is vertically turned over.FIG. 9 is a view of the pedestal part in FIG. 7 from an arrow IX.FIG. 10 is a view illustrating a waste bin part according to the embodiment of the present invention.FIG. 11 is a view of the waste bin part in FIG. 10 from an arrow XI. Hereinafter, an optical fiber cutting device according to an embodiment of the present invention will be described on the basis of the drawings. As illustrated in FIG. 1, an optical fiber cutting device 1 according to the present embodiment includes a main body part 10, a pedestal part 20, and a waste bin part 40. A fiber holder 30 that holds an optical fiber F is able to be placed on the pedestal part 20. The fiber holder 30 may be fixed to the pedestal part 20 with screws, or may be fixed with means other than screws (for example, magnets, or the like). A configuration of the fiber holder 30 is not particularly limited as long as it is able to hold the optical fiber F, and may be changed as appropriate. The main body part 10 includes a scratching blade 11 that scratches the optical fiber F extending from the pedestal part 20. The scratching blade 11 has a flat plate shape (disc shape in the illustrated example). The scratching blade 11 according to the present embodiment scratches the optical fiber F by sliding in a direction parallel to the scratching blade 11. The scratching blade 11 may be configured to be movable between a position at which the optical fiber F is scratched (scratching position) and a position at which the optical fiber F is not scratched (non-scratching position). Note that, in the following description, unless otherwise specified, a positional relationship of parts with the scratching blade 11 at the scratching position will be described. The main body part 10 according to the present embodiment includes a base part 13 in which the scratching blade 11 is provided and an opening/closing part 14 connected to the base part 13 to be openable and closable. The base part 13 includes a connection end portion 13a to which the opening/closing part 14 is connected, and a free end portion 13b positioned on a side opposite to the connection end portion 13a. As illustrated in FIGS. 1 to 4, the main body part 10 includes a first attaching portion 50A and a second attaching portion 50B. In a longitudinal direction of the optical fiber F (a longitudinal direction X to be described later), the first attaching portion 50A and the second attaching portion 50B are positioned on opposite sides from each other when viewed from the scratching blade 11. In other words, it is also possible to understand that, in a state in which the scratching blade 11 is at a position to scratch the optical fiber F, the first attaching portion 50A and the second attaching portion 50B are positioned on opposite sides from each other with respect to the scratching blade 11. In a state in which the scratching blade 11 is at a position to scratch the optical fiber F, the first attaching portion 50A, the scratching blade 11, and the second attaching portion 50B are arranged in one direction (the longitudinal direction X to be described later). Either the pedestal part 20 or the waste bin part 40 is attached to each of the attaching portions 50A and 50B. That is, the optical fiber cutting device 1 according to the present embodiment may take two states: a first attaching state (FIGS. 1 and 2) and a second attaching state (FIG