JPH11199139A - Bobbin cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bobbin cover which enhances the function of protecting its bobbin and is easy to use. SOLUTION: This bobbin cover is formed out of a cylindrical housing part 2 provided with an opening part 2b at one end, and with a bottom part 2a at the other end, and of a lid part 3 covering the opening part 2b, the opening part 2b and the lid part 3 are provided with a locking mechanism fixing them in such a way that they can be freely opened/closed, for example, the mechanism is equipped with a projection 3d and a projection receiving groove 25, in either inner side surface of the lid part 3 or the bottom part 2a, bar-like bobbin supporting parts 3c are vertically erected over to the inner side surface at plural places other than the center positions so as to be fixed thereto, and a receiving part 2d accepting the tip ends of the bobbin supporting parts 3, are fixed to the inner side surface of the other bottom part 2a or the lid part 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bobbin in which a linear body such as an optical fiber is wound around a body of an empty bobbin including a flange and a body, and a bobbin cover used for protecting the linear body.

[0002]

2. Description of the Related Art In order to protect a relatively small bobbin having a diameter of several tens of cm around which a linear body such as an optical fiber is wound, a rigid corrugated cardboard plate is bent in an arc shape so as to cover both sides of the bobbin. In this manner, a winding method or a method in which a bobbin is housed in a container composed of a cylinder and disks on both sides are adopted.

FIG. 4 shows an example of the latter container.
(A) shows the side view of the place where the container was opened and the place where it was closed. FIG. 4B is a cross-sectional view taken along the line AA when the container is closed, and FIG. 4C shows a locking portion of the lid of the container. In FIG. 4, the container 5 includes disk-shaped side plates 5a on both sides, and two arc-shaped lid members 5b connected to each other by hinges 5c joining the circumferential portions of the side plates 5a on both sides and both side edges thereof. . The lid member 5b can be closed or opened between the side plates 5a on both sides by hinges 5c fixed over the circumferential portions of the side plates 5a on both sides.

An engaging member 5e is fixed to the lid member 5b on the side opposite to the hinge 5c. When the lid member 5b is closed, the engaging members 5e are butted and fixed to the engaging member 5e. By inserting the engaging claw 5g into the locking portion 5f, the lid member 5b is closed so as not to be easily opened. 5h is an inner space of the container formed when the lid member 5b is closed, and there is a flange 6a and a trunk 6b.
The bobbin 6 having the body 6b and the linear body 6c wound thereon is accommodated therein. Reference numeral 5e denotes a handle, which is fixed to the lid member 5b so that the container containing the bobbin can be easily carried.

Japanese Patent Application Laid-Open No. 7-206270 describes a container for accommodating a bobbin, which comprises a cylindrical accommodating portion having a bottom and a lid for opening and closing the opening thereof. In the case of a container, the center of the cylindrical housing portion is provided with a central axis for passing through a shaft hole of a bobbin housed therein.

[0006]

The bobbin container used in the prior art described above accommodates a bobbin in a cylindrical internal space, but is the interior merely a cylindrical space? However, since the bobbin may rotate in the container because the cylinder has only the central axis, the winding of the wound linear body is loosened, and the linear body becomes tangled. Sometimes.

Further, the container is often made of a synthetic resin in order to reduce the weight. However, the locking claw and the locking portion may be broken by repeated insertion and removal, thereby shortening the life of the container. An object of the present invention is to provide a bobbin cover having a high protection function and a high durability, which solves the above problems.

[0008]

A bobbin cover according to the present invention comprises a bobbin having a flange portion and a body portion, the bobbin having a shaft hole connected to the inside of the body portion and a plurality of button holes at other locations. A bobbin cover that protects the linear body wound around the bobbin, the cylindrical housing having an opening at one end and a bottom at the other end, and a lid that covers the opening. The lid is provided with a locking mechanism for openably and closably fixed, and on one of the inner surfaces of the lid or the bottom, a rod-shaped bobbin supporting portion is fixed upright on the inner surface at a plurality of locations other than the center. A receiving part for receiving the tip of the bobbin supporting part is fixed to the other bottom part or the inner surface of the lid part.

Further, by providing shaft holes at the centers of the bottom and the lid, it is possible to support the bobbin and the bobbin cover by inserting a rod-shaped shaft into the center shaft hole with the bobbin accommodated in the bobbin cover. Since it can be stored, it can be easily stored in a storage rack or the like.

In addition, if a combination of a male screw and a female screw or a combination of a projection and a projection receiving groove is adopted as a locking mechanism between the opening and the lid, opening and closing are easy, and repeated opening and closing are possible. Can withstand. Further, if the handle is attached and fixed to the outer surface of the cylindrical portion, it is easy to carry by hand.

[0011]

FIG. 1A is a perspective view of an embodiment of a bobbin cover of the present invention and a bobbin accommodated therein, and FIG. 1B is a cross-sectional view thereof. A bobbin 1 is housed in a bobbin cover, and a linear body 1c is wound around an empty bobbin formed of a body 1d and a flange 1e. The flange 1e on both sides is provided with a shaft hole 1a and two button holes 1b.

The bobbin cover comprises a cylindrical housing 2 having an opening 2b at one end and a bottom 2a at the other end, and a lid 3 covering the opening 2b. The bobbin 1 is housed in the housing 2. Is done. The cover 3 has a shaft hole 3b provided at the center thereof, a rod-shaped bobbin support 3c standing upright on the inner surface, and an opening 2
b has a fitting portion 3a for locking the lid portion 3 and a projection 3d fixed to the fitting portion 3a. The bottom portion 2a has a shaft hole 2c provided at the center thereof, and a receiving portion 2d for receiving the tip of the bobbin support portion 3c is fixed to the inner surface thereof. Further, a projection receiving groove 2f is provided along the opening 2b of the housing portion 2 so that the projection 3d fixed to the fitting portion 3a of the lid portion 3 is fitted. 2e is fixed. The bobbin cover can be made of a metal plate or the like, but is desirably made of hard plastic in order to reduce the weight.

When the bobbin 1 is accommodated in the bobbin cover, the bobbin portion is supported while the bobbin 1 is supported by the lid 3 by passing the bobbin support portion 3c fixed to the lid portion 3 through the button hole 1b of the bobbin 1. It is inserted into the housing 2. When the tip of the bobbin supporting portion 3c reaches the receiving portion 2d fixed to the bottom portion 2a, the projection 3d is inserted into the projection receiving groove 2.
Rotate in f to fix the space between the housing 2 and the lid 3.
2A and 2B are a cross-sectional view and a side view illustrating a case of a locking mechanism that fixes the lid 3 to the housing 2 with a protrusion. FIG. 3 is a cross-sectional view and a side view showing an example of a locking mechanism using a female screw 2g provided along the opening 2b of the housing 2 and a male screw 3f provided in the lid 3.

Although FIGS. 1, 2 and 3 show two bobbin support portions 3c, the number and size of the bobbin support portions 3c may be adjusted to the number and size of the boring holes of the bobbin 1. 3
Sometimes there are more than books. 1, 2, and 3 show the example in which the bobbin support 3 c is fixed to the lid 3, the receiving portion 2 d of the bottom 2 a is fixed to the lid 3, and the bobbin support 3 is fixed.
c may be fixed to the bottom 2a side. Further, the shaft holes 2c and 3b provided in the lid 3 and the bottom 2a may not be provided. Handle 2
e is also attached as needed, and may not be present.

Incidentally, there is a case where a plastic film is wrapped around a linear body such as an optical fiber wound around the bobbin so as to prevent dust or the like from being applied thereto, and is accommodated in a bobbin cover. In such a case, if the bobbin supporting portion 3c and the shaft hole 3b are provided on the lid portion 3 side and the receiving portion 2d and the shaft hole 2c are provided on the bottom portion 2a side as shown in FIGS. The bobbin 1 and the linear body 1c wound therearound are less likely to be damaged.

First, the shaft hole 3b of the cover 3 of the bobbin cover is inserted through the rotation shaft of the device having the rotation shaft, and then the bobbin 1 is aligned with the bobbin support 3c of the cover 3 and the rotation shaft.
Through the through hole 1b and the shaft hole 1a. Then, while rotating the bobbin 1 by the rotation axis, the linear body 1
c Wrap a plastic film on top. Thereafter, the housing portion 1 is inserted so as to cover the bobbin 1, and the lid 3 and the housing portion 2 are locked by the protrusion 3d and the protrusion receiving groove 2f or the male screw 3f and the female screw 2g.

Thereafter, if the bobbin cover containing the bobbin 1 is removed from the rotating shaft by holding the handle 2e, the work of winding the wrap film and the work of storing the bobbin in the bobbin cover can be performed in a series of work. In the meantime, the bobbin or the linear body is less likely to be damaged due to rolling of the bobbin.

Since the bobbin shaft hole and the bobbin cover shaft hole are coaxial, even when the bobbin cover containing the bobbin is housed in a rack or the like for transportation or the like, a rod-shaped rod attached to the rack is required. Since the shaft can be held through the bobbin cover and the shaft hole of the bobbin, the shaft can be stably held in the rack.

[0019]

The bobbin cover according to the present invention comprises a cylindrical accommodation portion having an opening at one end and a bottom at the other end, and a lid for covering the opening. A lock mechanism for opening and closing is provided, and a rod-shaped bobbin support portion is fixed upright on the inner surface at a plurality of positions other than the center on the inner surface of one of the lid and the bottom. Since the receiving portion for receiving the tip of the bobbin support portion is fixed to the bottom surface or the inner surface of the lid portion, so that the bobbin flange does not contact the inner surface of the cylindrical portion by the bobbin support portion.
In addition, it can be supported so that it does not rotate, and the winding state of the linear body wound around the bobbin does not loosen, and it is suitable for housing a bobbin wound with an optical fiber or the like that is weak against impact, bending, etc. .

If the bobbin support portion is fixed to the inner surface of the lid portion and the receiving portion is fixed to the inner surface of the bottom portion, and a shaft hole is provided at the center of the lid portion and the bottom portion, the bobbin cover and the bobbin housed therein are provided. The bobbin cover and the bobbin can be supported by inserting a rotating shaft or a rod-shaped shaft through the shaft hole, so that a wrap sheet can be wound on a linear body wound on the bobbin, a storage operation on a rack, and the like. Becomes easier.

Further, if a combination of a male screw and a female screw or a combination of a projection and a projection receiving groove is adopted as a locking mechanism between the cylindrical portion and the lid portion, opening and closing can be easily performed, and repeated opening and closing can be performed. Can withstand. In addition, if the handle is attached and fixed to the outer peripheral surface of the cylindrical portion, it is easy to carry by hand.

[Brief description of the drawings]

FIG. 1A is a perspective view of an embodiment of a bobbin cover of the present invention and a bobbin accommodated therein, and FIG. 1B is a cross-sectional view thereof.

FIGS. 2A and 2B are a cross-sectional view and a side view illustrating an example of a mechanism for locking a housing section and a lid section of a bobbin cover.

FIGS. 3A and 3B are a cross-sectional view and a side view showing another example of a mechanism for locking a housing section and a lid section of a bobbin cover. FIGS.

FIG. 4 (A) is a side view showing an open state and a closed state of a conventional bobbin housing container,
(B) is an AA cross-sectional view of a closed position, and (C) is a perspective view showing a locking portion.

[Explanation of symbols]

 1: Bobbin 1a: Shaft hole 1b: Sharp hole 1c: Linear body 1d: Trunk 1e: Flange 2: Housing 2a: Bottom 2b: Opening 2c: Shaft hole 2d: Receiving portion 2e: Handle 2f: Protrusion receiving Groove 2g: Female screw 3: Lid 3a: Fitting portion 3b: Shaft hole 3c: Bobbin support 3d: Projection 3f: Male screw

Claims (2)

[Claims] 1. A locking device comprising: a cylindrical housing portion having an opening at one end and a bottom portion at the other end; and a lid covering the opening, wherein the opening and the lid are fixed to be openable and closable. Equipped with a mechanism,
On the inner surface of either the lid or the bottom, a rod-shaped bobbin support is fixed upright to the inner surface at a plurality of locations other than the center, and on the inner surface of the other bottom or the lid, A bobbin cover, wherein a receiving portion for receiving a tip of the bobbin supporting portion is fixed. 2. The bobbin cover according to claim 1, wherein the bottom and the lid have a shaft hole at the center.