Wire body winding device and wire body manufacturing method

Patent metadata

Field	Value
Publication number	US-12208987-B2
Application number	US-202017774920-A
Country	US
Kind code	B2
Filing date	Nov 6, 2020
Priority date	Nov 7, 2019
Publication date	Jan 28, 2025
Grant date	Jan 28, 2025

Abstract

A wire body winding device includes a rotating plate that rotates together with a drive shaft, a bobbin that is attached to the rotating plate and winds a wire body, and a locking portion that is attached to the rotating plate and locks the wire body. The locking portion includes a base member fixed to the rotating plate and a guide member disposed so as to overlap the base member. The locking portion has a base end portion at which the guide member is fixed to the base member and a tip end portion configured to receive the wire body. The locking portion has a shape in which a distance between the base member and the guide member increases gradually from the base end portion toward the tip end portion.

First claim

The invention claimed is:

1. An optical fiber winding device, comprising:
a rotating plate that rotates together with a drive shaft;
a bobbin that is attached to the rotating plate and winds an optical fiber; and
a locking portion that is attached to the rotating plate and locks the optical fiber,
wherein the locking portion includes
a base member fixed to the rotating plate and
a guide member disposed so as to overlap the base member,

the locking portion has a base end portion at which the guide member is fixed to the base member and a tip end portion configured to receive the optical fiber,
the guide member has a gradient in which the distance between the base member and the guide member increases from the base end portion toward the tip end portion,
the base member has a flat portion with no gradient,
the locking portion has a shape in which a distance between the base member and the guide member increases gradually from the base end portion toward the tip end portion, and
the gradient of the guide member with respect to the base member is 1/200 or more and 1/50 or less.

2. The optical fiber winding device according to claim 1 ,
wherein a thickness of the guide member is thinner from the base end portion toward the tip end portion.

3. The optical fiber winding device according to claim 1 ,
wherein the base member and the guide member are made of metal.

4. The optical fiber winding device according to claim 1 ,
wherein the guide member includes a facing surface facing the base member, and
wherein the facing surface includes:
a contact region that is contactable with the optical fiber, and
inclined surface regions that are provided at both sides of the contact region in a direction intersecting with a direction from the base end portion toward the tip end portion and that have an inclination away from the base member as being away from the contact region.

5. The optical fiber winding device according to claim 1 ,
wherein the base member and the guide member are separated by a given gap at a starting point where the distance between the base member and the guide member increases, which is located at an end of the base end portion.

6. An optical fiber manufacturing method, comprising:
locking an optical fiber by a locking portion provided on a rotating plate that rotates together with a drive shaft at a time of bobbin switching; and
continuously winding the optical fiber while switching the bobbin that is detachably attached to the rotating plate,
wherein the locking portion includes
a base member fixed to the rotating plate and
a guide member disposed so as to overlap the base member,

the locking portion has a base end portion at which the guide member is fixed to the base member, and a tip end portion configured to receive the optical fiber,
the guide member has a gradient in which the distance between the base member and the guide member increases from the base end portion toward the tip end portion,
the base member has a flat portion with no gradient,
the gradient of the guide member with respect to the base member is 1/200 or more and 1/50 or less, and
a distance between the base member and the guide member increases gradually from the base end portion toward the tip end portion, and the optical fiber is held and locked between the base member and the guide member at the time of the bobbin switching.

Assignees

• Sumitomo Electric Industries

Inventors

• Yamazaki Takashi

Classifications

• B65H2701/32

  Optical fibres or optical cables · CPC title

• B65H57/04

  Guiding surfaces within slots or grooves · CPC title

• B65H65/00 Primary

  Securing material to cores or formers (arrangements for securing ends of material to cores, formers, supports or holders, e.g. reels, B65H75/28) · CPC title

• B65H2701/31

  Textiles threads or artificial strands of filaments · CPC title

• B65H75/28

  Arrangements for positively securing ends of material · CPC title