Cutting jig and cutting method of optical fiber

Patent metadata

Field	Value
Publication number	US-12158608-B2
Application number	US-202017613349-A
Country	US
Kind code	B2
Filing date	May 21, 2020
Priority date	May 24, 2019
Publication date	Dec 3, 2024
Grant date	Dec 3, 2024

Abstract

A cutting jig includes a fixing member for inserting a distal end portion of an optical fiber, and an inclination cutting unit movable with respect to the fixing member for cutting the distal end portion. The distal end portion is defined into a proximal end portion and a free end portion. The inclination cutting unit includes a one end edge of a closing plate and a blade portion incapable of relative movement to each other. The inclination cutting unit can perform a first movement and a second movement that is a greater movement amount than the first movement. The one end edge is brought into contact with the free end portion based on the first movement, and the free end portion moves to be inclined with respect to an extension line EL. A blade edge is brought into contact with the free end portion based on the second movement.

First claim

The invention claimed is:

1. A cutting jig comprising:
a fixing member having a through hole, wherein a distal end portion of an optical fiber is insertable into the through hole in a first direction, and wherein the fixing member is configured to fix the distal end portion in a state in which the distal end portion is inserted in the through hole,
a wall disposed at one side of the fixing member in the first direction and being movable from a first position to a second position with respect to the fixing member in a second direction perpendicular to the first direction, and
an inclination imparting portion and a blade portion, both of which are fixed on the wall,
wherein when the wall is disposed at the first position with respect to the fixing member, the inclination imparting portion and the blade portion are disposed away from the through hole in the second direction,
wherein when the wall is disposed at the second position with respect to the fixing member, the inclination imparting portion and the blade portion are overlapped with the through hole in the first direction,
wherein the fixing member is configured to fix the distal end portion of the optical fiber such that:
a proximal end portion is disposed at one side of the distal end portion and is fixed to the fixing member, and
a free end portion is located at an other side of the distal end portion in the first direction as compared with the proximal end portion, the free end portion being not fixed to the fixing member;

wherein the wall includes:
a slit disposed in the wall and extending in the second direction, the slit configured to have the free end portion of the optical fiber inserted into the slit, the slit being overlapped with the through hole in the first direction in a state in which the wall is disposed at the first position with respect to the fixing member;
wherein the inclination imparting portion is disposed at one side of the wall in the first direction or disposed in the slit; and
wherein the blade portion is disposed at an other side of the wall in the first direction to cut the free end portion when the free end portion is brought into contact with the inclination imparting portion and inclined by the contact.

2. The cutting jig according to claim 1 , further comprising a case having the wall, wherein
the fixing member is movably attached to the case.

3. The cutting jig according to claim 1 , wherein
the fixing member has a cylindrical portion, and the cylindrical portion is configured to fittingly receive an anchor member that is attached to the proximal end portion of the optical fiber.

4. The cutting jig according to claim 1 , wherein
the slit is capable of guiding the free end portion during the movement of the wall with respect to the fixing member.

5. The cutting jig according to claim 1 , wherein
the inclination imparting portion is an end portion of a closing member, the closing member closing a portion of an open end edge of the slit.

6. The cutting jig according to claim 1 , wherein
the inclination imparting portion is an end portion of a filling member, the filling member filling a portion of the slit.

7. The cutting jig according to claim 1 , wherein
the inclination imparting portion is an inner end edge, the inner end edge extending in an extending direction of the slit in the wall.

8. The cutting jig according to claim 1 , wherein
a blade edge of the blade portion is inclined with respect to the slit.

Assignees

• Nitto Denko Corp

Inventors

• Okada Kazumasa
• Kiyoshima Keita
• Tsujita Yuichi

Classifications

• B26B29/06 Primary

  Arrangements for guiding hand cutting tools (guiding equipment or arrangements for specific cutting tools, see the particular places, e.g. for hair trimming devices A45D24/36, for saw blades B27B11/02, B26B13/10) · CPC title

• B26B1/08

  with sliding blade {(with detachable blades B26B5/001)} · CPC title

• B26B5/006

  specially adapted for using razor blades as blades (B26B5/001 takes precedence) · CPC title

• B26B27/00

  Hand cutting tools not provided for in the preceding groups, e.g. finger rings for cutting string, devices for cutting by means of wires · CPC title

• G02B6/25 Primary

  Preparing the ends of light guides for coupling, e.g. cutting · CPC title