JP2002006170A - Connector for optical fiber cord - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector for optical fiber cord capable of wiring an optical fiber cord connected to an optical communication device in a space as small as possible. SOLUTION: The connector for optical fiber cord 1 of this invention has a socket 3 (connector for device) which is connected to an optical transmission device A (optical communication device) and a bush 4 (connector for cord) which is connected to an optical fiber cord F, crossing the axis lines of the socket 3 and the bush 4 and wiring them only with a coated fiber Fa, and also has a body 2 for storing the coated fiber Fa at minimum curvature.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical fiber cord connector for connecting an optical fiber cord to an optical communication device.

[0002]

2. Description of the Related Art A data network repeater W which is an example of an optical communication system shown in FIG. 9 ((a) is a perspective view from the front and (b) is a perspective view from the side) has a plurality of optical transmission systems. A device (optical communication device) A is housed in a storage rack B, and an optical fiber cord F as an inter-device wiring is connected to each optical transmission device A via an optical fiber cord connector C. .

As shown in FIG. 10, the optical fiber cord F is composed of a fiber core Fa and an outer sheath Fb made of vinyl or the like for protecting the fiber core Fa. C is a body Ca that houses the distal end of the optical fiber cord F;
A socket (female connector) Cb as a device connection portion provided at the tip of the body Ca.

On the other hand, a plug (male connector) Ac connected to the socket Cb of the optical fiber cord connector C is provided on the panel Ap of the optical transmission device A, and the plug Ac is connected to the plug Ac. Is connected, the optical fiber cord F is connected to the panel A of the optical transmission device A.
It is drawn vertically from p.

[0005]

When the optical fiber cord F connected to the optical transmission device A via the optical fiber cord connector C is wired along the panel Ap of the optical transmission device A, As shown in FIG. 11, the optical fiber cord F needs to be curved.

However, as described above, the optical fiber cord F
Has a minimum radius of curvature R as a construction range that guarantees performance at the time of wiring, in addition to being hardly bent with a small radius of curvature because the outer sheath Fb is provided on the fiber core Fa.
Is regulated to about 40 mm.

Therefore, in order to wire the optical fiber cord F along the panel Ap of the optical transmission device A, the panel A
There is an inconvenience of requiring a large wiring space in which the overhang dimension S from p is 100 mm or more.

The present invention has been made in view of the above circumstances, and has as its object to provide an optical fiber cord connector capable of wiring an optical fiber cord connected to an optical communication device in as little space as possible. is there.

[0009]

In order to achieve the above object, an optical fiber cord connector according to the present invention comprises a device connecting portion connected to an optical communication device and a cord connecting portion connected to an optical fiber cord. Further, the device connection portion and the cord connection portion are provided in such a manner that their axes are substantially orthogonal to each other, and only the fiber core wire is wired between the device connection portion and the cord connection portion, and the fiber core wire is allowed to be the minimum. And a body accommodating it by being curved at the curvature.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the drawings showing embodiments. 1, 2 and 3
First, the first optical fiber cord connector according to the present invention will be described.
The following shows an example.

Optical fiber cord F as wiring between devices
Is composed of a fiber core Fa and an outer coating Fb for protecting the fiber core Fa, and the optical fiber cord connector 1 according to the present invention is attached to the tip of the optical fiber cord F. I have.

The optical fiber cord connector 1 (hereinafter referred to as a connector 1) includes a body 2 for accommodating a fiber core Fa of an optical fiber cord F, and a socket 3 attached to the body 2 as a device connection portion.
And a bush 4 as a cord connection portion.

The body 2 of the connector 1 is a hollow casing having a substantially fan-shaped side shape. A socket 3 is provided on a front wall 2a of the body 2, while a lower wall 2 is provided.
b, a bush 4 is provided.
The bush 4 and the bush 4 are installed so that their axes are substantially orthogonal to each other.

The bush 4 has an optical fiber cord F, more specifically, an outer coating Fb of the optical fiber cord F.
Are connected, and the fiber core Fa of the optical fiber cord F is connected to the socket 3 through the internal space 2s of the body 2.

That is, only the fiber core Fa of the optical fiber cord F is accommodated in the body 2 of the connector 1, and the socket 3 and the bush 4 are accommodated therein.
Are wired between

In the internal space 2s of the body 2, the fiber core Fa of the optical fiber cord F
Are housed in a state of being curved with a minimum allowable radius of curvature.

Here, the fiber core Fa of the optical fiber cord F can be curved with a much smaller radius of curvature than the case where the entire optical fiber cord F is curved. The fiber core Fa is curved with a radius of curvature r of about 30 mm.

Further, a guide 2g and a rib 2r for holding the posture of the fiber core Fa are formed inside the body 2, and the internal space 2s of the body 2 is formed by the action of the guide 2g and the rib 2r. Inadvertent deformation of the fiber core wire Fa is prevented.

As shown in FIG. 3A, a state in which the connector 1 having the above-described configuration is connected to the optical transmission device (optical communication device) A, that is, the socket 3 of the connector 1 is connected to the optical transmission device A
In the state where the connector 3 is connected to the plug Ac, the socket 3 and the bush 4 of the connector 1 are installed so that their axes are substantially orthogonal to each other.
The optical fiber cord F extending from the connector 1 is drawn out along the panel Ap of the optical transmission device A with respect to the plug Ac protruding vertically from p.

Further, in the connector 1 having the above-described configuration, the fiber core Fa is curved with the minimum allowable radius of curvature in the internal space 2s of the body 2, so that the optical transmission device is evident from FIG. Panel Ap in A
Overhang dimension S1 (about 50 mm) of connector 1 from
(a)) is significantly smaller than the overhang dimension S (100 mm or more) (FIG. 3 (b)) when the optical fiber cord F connected to the optical transmission device A via the conventional connector C is bent. Thus, the optical fiber cord F connected to the optical transmission device A can be wired with as little space as possible.

Here, when the above-mentioned connector 1 is completed, it becomes one product as an optical fiber cord with a connector.
The performance of the product can be ensured by strict checks, and the connector 1 can be made more compact by bending the fiber core wire Fa with a radius of curvature as small as possible.

The socket 3 as a device connecting portion of the connector 1 may employ a plug corresponding to the other party to be connected. In addition, as a device connection portion of the connector 1, not only one element of a connection mechanism including a socket and a plug but also one element of various connection mechanisms such as an SC plug and an FC plug can be used.

The optical fiber cord connector 10 (hereinafter referred to as a connector 10) according to the second embodiment of the present invention shown in FIGS. 4 and 5 has a body 12 for accommodating a fiber core Fa, and a The device includes a socket 13 attached to the device 12 as a device connection portion, and a plug 14 as a cord connection portion.

The body 12 of the connector 10 has a front wall 1
2a and lower wall 12b, socket 13 and plug 1
4 are installed such that their axes are substantially orthogonal to each other, and a fiber core Fa curved with a minimum allowable radius of curvature (about 30 mm) is accommodated in the internal space 12s of the body 12, and the fiber core is Fa is socket 13 and plug 1
4 is wired.

Further, inside the body 12, there are formed a guide 12g and a rib 12r for holding the posture of the fiber core wire Fa.
Is basically the same as the connector 1 described above, except that the bush 4 (see FIG. 1) as a device connecting portion is replaced with a plug 14.

In the connector 10 having the above-described configuration, the socket Fc provided at the end of the optical fiber cord F is connected to the plug 14 of the connector 10, and the socket 13 is connected to the optical transmission device A (see FIG. 3A). By connecting to the plug Ac (see FIG. 3A), the optical fiber cord F is connected to the optical transmission device A (see FIG. 3A).

Thus, according to the connector 10 having the above-described configuration, it is possible to wire the optical fiber cord connected to the optical transmission device with as little space as possible in the same manner as the connector 1 described above. Become.

Here, since the above-described connector 10 becomes one product in a completed state, the performance of the product can be ensured by strict checking such as measurement of transmission loss for each connector 10, and thus the fiber core wire can be secured. By bending Fa with a radius of curvature as small as possible, downsizing of the connector 10 is achieved.

It is needless to say that, instead of the socket 13 and the plug 14 of the connector 10, various components of a connection mechanism such as an SC plug and an FC plug can be employed.

The connector 20 for an optical fiber cord according to the third embodiment of the present invention shown in FIGS.
(Hereinafter, referred to as a connector 20) includes a body 22 accommodating the fiber core Fa of the optical fiber cord F, a socket 23 attached to the body 22 as a device connection portion, and a bush 24 as a cord connection portion. Is provided.

The body 22 of the connector 20 is a hollow casing having a rectangular side shape with one corner rounded. A socket 23 is provided on a front wall 22a of the body 22, while a lower wall 22b Is provided with a bush 24, and the socket 23 and the bush 24 are installed in such a manner that their axes are substantially orthogonal to each other.

The bush 24 has an optical fiber cord F, more specifically, an outer coating Fb of the optical fiber cord F.
Is connected, and the fiber core Fa of the optical fiber cord F is connected to the socket 23 through the internal space 22s of the body 22.

That is, only the fiber core Fa of the optical fiber cord F is accommodated in the body 22 of the connector 20, and is wired between the socket 23 and the bush 24.

The internal space 22s of the body 22
In the above, the fiber core wire Fa of the optical fiber cord F is accommodated in a state of being curved with a minimum allowable radius of curvature.

A cylindrical guide 22g for holding the posture of the fiber core Fa is formed inside the body 22, and the fiber core Fa is connected to the guide 22g.
Is wound in a manner of being wound over a range of 270 °.

Here, the fiber core Fa of the optical fiber cord F can be curved with a much smaller radius of curvature than the case where the entire optical fiber cord F is curved. The fiber core Fa is curved with a radius of curvature r of about 30 mm.

By the action of the guide 22g formed inside the body 22, careless deformation of the fiber core Fa in the internal space 22s of the body 22 is prevented.
It is prevented as much as possible.

As shown in FIG. 8A, a state in which the connector 20 having the above configuration is connected to the optical transmission device (optical communication device) A,
That is, in a state where the socket 23 of the connector 20 is connected to the plug Ac of the optical transmission device A, the socket 23 of the connector 20 and the bush 24 are installed so that their axes are substantially orthogonal to each other. The optical fiber cord F extending from the connector 20 with respect to the plug Ac protruding vertically from the panel Ap of A,
It will be drawn out along the panel Ap of the optical transmission device A.

In the connector 20 having the above configuration,
In the internal space 22s of the body 22, the fiber core F
Since a is curved with the smallest radius of curvature that can be tolerated,
As is clear from FIG. 8, the overhang dimension S20 (50 mm) of the connector 20 from the panel Ap in the optical transmission device A is shown.
(FIG. 8 (a)) shows the overhang dimension S (100 mm or more) when the optical fiber cord F connected to the optical transmission device A via the conventional connector C is bent (FIG. 8 (b)). The optical fiber cord F connected to the optical transmission device A can be wired in as small a space as possible.

Here, when the above-described connector 20 is completed, it becomes one product as an optical fiber cord with a connector. Therefore, the performance of the product is ensured by strict checking such as measurement of transmission loss for each product. The connector 20 can be made compact by bending the fiber core Fa with a radius of curvature as small as possible.

In the connector 20 having the above configuration,
In the internal space 22s of the body 22, the fiber core Fa is accommodated so as to be wound around the guide 22g within a range of 270 °, so that the socket 23 and the bush 24 are accommodated.
Are arranged close to each other.

Thus, the connector 20 is connected to the optical transmission device A.
When the optical fiber cord F is pulled in a state where the optical fiber cable F is connected, the moment generated due to the short distance between the socket 23 and the bush 24 is suppressed, and therefore, the damage at the connection portion between the optical transmission device A and the connector 20 is suppressed. Can be prevented as much as possible.

The socket 23 as a device connecting portion of the connector 20 may employ a plug corresponding to the other party to be connected. In addition, connector 2
0, not only one element of the connection mechanism consisting of a socket and a plug, but also an SC plug or F
It goes without saying that one element of various connection mechanisms such as a C plug can be adopted.

In each of the above-described first to third embodiments, it is not mentioned whether the fiber core of the optical fiber cord is single-core or multi-core. It goes without saying that the cord connector can be effectively applied to either single-core or multi-core optical fiber cords.

Further, in each of the above-described embodiments, the optical transmission device is exemplified as the optical communication device. However, the optical fiber cord connector according to the present invention connects the optical fiber cord to various optical communication devices. Of course, it can be effectively applied as a connector.

[0046]

As described above in detail, the optical fiber cord connector according to the present invention includes a device connection portion connected to an optical communication device and a cord connection portion connected to an optical fiber cord. Further, the device connecting portion and the cord connecting portion are provided in such a manner that their axes are substantially orthogonal to each other, and only the fiber core wire is wired between the device connecting portion and the cord connecting portion, and the fiber core wire is bent with a minimum allowable curvature. It is equipped with a body to be accommodated.

According to the above configuration, in a state where the optical fiber cord is connected to the optical communication device via the optical fiber cord connector, the optical fiber cord extending from the optical fiber cord connector extends along the panel of the optical transmission device. The overhang dimension of the optical fiber cord connector from the optical transmission device is smaller than the overhang dimension when the optical fiber cord connected to the optical transmission device via the conventional optical fiber cord connector is bent. Significantly smaller.

Therefore, according to the optical fiber cord connector according to the present invention, the optical fiber cord connected to the optical transmission device can be wired with as little space as possible.

[Brief description of the drawings]

FIGS. 1 (a) and 1 (b) are a front view and a side view showing a first embodiment of an optical fiber cord connector according to the present invention.

FIG. 2 is a side sectional view of the optical fiber cord connector shown in FIG.

3A and 3B are side views showing a wiring space in a state where the optical fiber cord connector shown in FIG. 1 is connected to an optical communication device, and a wiring space in a conventional optical fiber cord connector. FIG.

FIGS. 4A and 4B are a front view and a side view showing a second embodiment of the optical fiber cord connector according to the present invention.

FIG. 5 is a side sectional view of the optical fiber cord connector shown in FIG. 4;

FIGS. 6A and 6B are a front view and a side view showing a third embodiment of the optical fiber cord connector according to the present invention.

FIG. 7 is a side sectional view of the optical fiber cord connector shown in FIG. 6;

8 (a) and (b) are side views showing a wiring space in a state where the optical fiber cord connector shown in FIG. 7 is connected to an optical communication device, and a wiring space in a conventional optical fiber cord connector. FIG.

FIGS. 9A and 9B are a side view and a front view conceptually showing an optical communication device.

FIG. 10 is a side view showing a conventional optical fiber cord connector attached to an optical fiber cord.

FIG. 11 is a side view showing a state where a conventional optical fiber cord connector attached to an optical fiber cord is connected to an optical communication device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Optical fiber cord connector, 2 ... Body, 3 ... Socket (equipment connection part), 4 ... Bush (cord connection part), 10 ... Optical fiber cord connector, 12 ... Body, 13 ... Socket (equipment connection part) , 14: plug (cord connection), 20: optical fiber cord connector, 22: body, 23: socket (equipment connection), 24: bush (cord connection), F: optical fiber cord, Fa: fiber core wire A: Optical transmission device (optical transmission communication device).

Claims (1)

[Claims] An optical fiber cord connector for connecting an optical fiber cord to an optical communication equipment, comprising: an equipment connection part connected to the optical communication equipment; a cord connection part connected to the optical fiber cord; The device connection portion and the cord connection portion are provided in such a manner that their axes are substantially orthogonal to each other, and only the fiber core wire is wired between the device connection portion and the cord connection portion, and the smallest possible fiber core wire is allowed. A connector for an optical fiber cord, comprising: a body accommodating a bend at a curvature.