Cutting device

Patent metadata

Field	Value
Publication number	US-2025289071-A1
Application number	US-202519220920-A
Country	US
Kind code	A1
Filing date	May 28, 2025
Priority date	Dec 27, 2022
Publication date	Sep 18, 2025
Grant date	—

Abstract

A blade member is disposed above a cutting unit. The blade member is a substantially disc-shaped member, and the circumferential part serves as a blade tip. The blade member is stored in positioning members. When the positioning members are caused to counterpose and are then joined to each other, a slit is formed at the upper portion of the positioning members. A pair of projections projecting to the inner surface side are formed at one of the counterposing edges of the slit. The projections are formed at two positions with the center axis of the blade member therebetween. One surface of the blade member comes into surface-contact with the inner surface of the positioning member, and the blade member is pressed in the direction of the slit by an elastic member, whereby a tapered part on the other surface of the blade member comes into point-contact with the projections and is positioned therein.

First claim

1 . A cutting device for cutting an optical fiber, the cutting device comprising:
a base; a disc-shaped blade member; a positioning member for restricting a position of the blade member, the positioning member being provided on the base; a support part for supporting the blade member, the support part being disposed so as to be variable in height with respect to the base; and a first elastic member that presses the support part to a positioning portion of the positioning member with respect to the base, wherein the positioning member includes a slit; a projection is formed as the positioning portion on one of facing edges of the slit so as to project toward an inner surface side; the projection is formed at two places with an axis of the blade member therebetween when viewed from above; the blade member is stored inside the positioning member; one surface of the blade member is in surface-contact with an inner surface of the positioning member; and the first elastic member presses the blade member toward the slit so that a tapered portion on the other surface of the blade member is positioned by being in point-contact with each projection and a tip of the blade member protrudes to a surface side of the slit.

2 . The cutting device according to claim 1 , wherein a pair of the projections are disposed at positions that are symmetrical with respect to a vertical centerline passing through the axis of the blade member.

3 . The cutting device according to claim 1 , wherein when viewed from an axial direction of the blade member, a tip of the projection is formed in an arc shape and an arc-shaped portion of the projection is in point-contact with the tapered portion of the blade member.

4 . The cutting device according to claim 1 further comprising:
a second elastic member that presses the blade member in a direction of the support part, which is the axial direction of the blade member, wherein
the second elastic member presses the one surface of the blade member to the inner surface of the positioning member.

Assignees

• Furukawa Electric Co Ltd

Inventors

• Komatsuzaki Akihiro
• Akiyama Tomohiro

Classifications

• B23D47/08 Primary

  of devices for bringing the circular saw blade to the workpiece or removing same therefrom · CPC title

• B26D3/16

  Cutting rods or tubes transversely {(cutting tubes longitudinally B26D3/001)} · CPC title

• G02B6/25 Primary

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