JP3207312B2 - Laminated state holder for laminated optical connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention is laminated state holding for holding a plurality of a pair of stacked light connector against a stacked optical connectors are collectively connected with the optical connector stacked in the stacking state a stacked pin About the tool.

[0002]

2. Description of the Related Art In order to simultaneously connect a plurality of optical connectors to a plurality of other optical connectors and collectively connect the plurality of optical connectors, a plurality of optical connectors are collectively integrated using laminated pins. There has been proposed a ferrule stacking method and a stacked optical connector in which an integrated set of stacked optical connectors are abutted and connected collectively by an elastic clip attached to the side surface of each ferrule. Kaihei 4-215607).

The laminating method and the laminated optical connector have an advantage that a plurality of optical connectors can be compactly laminated as compared with a method of laminating a plurality of optical connectors in a housing. However, in the lamination method and the lamination type optical connector, a retaining ring is used for retaining the laminated pin, and since the retaining ring is a small part due to the configuration, the attaching / detaching work is complicated when laminating the optical connector or the like. Therefore, there is a problem that parts are easily lost.

Further, in the above-described laminating method and the laminated optical connector, a clip is used to hold a laminated state of a set of laminated optical connectors which are abutted and connected collectively. However, each optical connector constituting the laminated optical connector has a shape close to a square so that ferrules can be easily laminated. For this reason, when attaching a clip to a set of stacked optical connectors connected collectively, the end of each optical connector may be chipped by the elastic force acting from the clip, and the pressing force in the butting direction decreases. In addition, there has been a problem that a plurality of stacked optical connectors are displaced in the stacking direction or the butting direction.

[0005] The present invention has been made in view of the above points.
In, and to provide a stacked state holder of stacked light connector capable of retaining the stacked state without shifting the plurality of optical connectors which is the product layer in the stacking direction and the joining direction.

[0006]

According to a first aspect of the present invention, there is provided a multilayer optical connector having a laminated state holder according to the present invention.
The plurality of ferrules are collectively laminated with a small degree of freedom in the laminating direction by a lamination pin inserted into a lamination hole formed at a corresponding position on both sides of each ferrule of the plurality of optical connectors. Removable attachment of detachable plate
And assembled together, butted together
At the rear of each ferrule of a set of stacked optical connectors
Elastic contact with rear part of ferrule via formed guide
And press the corresponding ferrules in the butting direction.
Pressing part, which is locked to each of the ferrules,
And a restricting piece for restricting the side of the ferrule.
A plurality of locking members detachably attached to
It is detachably engaged, and the locking members are arranged at predetermined intervals.
A pair of stacking members comprising an alignment member for holding and a holding member;
The above-mentioned set which is attached to the optical connector
A multilayer optical connector is had a structure that holds the stacked state.

[0007]

[0008]

In the laminated optical connector, the laminated holes formed at the corresponding positions on both sides of each of the ferrules of the plurality of optical connectors are aligned and stacked, and the laminated pins are inserted into the aligned laminated holes, respectively. When the retaining plate is integrally attached to the end, the plurality of ferrules are collectively laminated with a small degree of freedom in the laminating direction. The laminated optical connectors assembled in this manner are connected collectively by abutting each other, and when the laminated state holder is attached from each side,
Each pressing portion of the locking member held at a predetermined arrangement interval by the alignment member and the holding member elastically abuts on the rear portion of the ferrule via a guide portion formed on the rear portion of the ferrule, and each regulating piece engages with the ferrule. Stop. Accordingly, the displacement of the stacked optical connectors in the stacking direction and the butting direction is regulated, and the stacked state is maintained.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS. The laminated optical connector 1 is shown in FIG.
As shown in FIG. 1, a plurality of optical connectors 2 are collectively laminated with a small degree of freedom in the laminating direction by laminating pins 3 and 3. Here, the laminated pins 3 and 3 have a flat head at the upper part, a mounting groove (not shown) formed at the lower part in the circumferential direction, the upper part is connected by the connecting plate 4, and the lowermost part. A retaining plate 5 is detachably mounted in the lower mounting groove extending from the optical connector 2 to prevent the laminated pins 3 from coming off.

As shown in FIGS. 2 and 3, the optical connector 2 has a tape fiber 2b attached to a ferrule 2a, and a portion where the tape fiber 2b extends from the rear in the direction in which the ferrule 2a abuts. 2c, the optical fiber cores (not shown) of the tape fiber 2b are joined to the front end face 2d of the ferrule 2a.
It is exposed to. The ferrule 2a has a front portion projecting in a stepped manner and flange portions 2e, 2e formed on both sides of the rear portion. A formed guide portion 2g is provided. Further, the ferrule 2a has a laminated hole 2 vertically penetrating through each flange portion 2e.
h are formed, and pin holes 2j, 2j through which fitting pins (not shown) are inserted are formed between the laminated holes 2h, 2h in the front-rear direction. Each of the pin holes 2j is used when the laminated optical connector 1 is brought into contact with another laminated optical connector 1 and connected collectively.
The fitting pins are inserted and the corresponding ferrules 2a, 2a
This is used when positioning.

The connecting plate 4 is a thin metal plate having a shape corresponding to the width direction of the optical connector 2, and has an insertion hole 4a (see FIG. 5) through which each laminated pin 3 is inserted on both sides. The retaining plate 5 is a metal plate having a shape corresponding to the width direction of the optical connector 2 similarly to the connecting plate 4, and the laminated pin 3
The slit 5a having a width substantially equal to the diameter of the mounting groove (FIG. 4)
Is formed in the width direction.

[0012] The thus configured Ru product layer type optical connector 1
Are laminated and assembled as follows. First,
The plurality of optical connectors 2 are stacked so that the laminated holes 2h formed in the respective flange portions 2e coincide with each other, and the connecting plate 4 is placed on the uppermost optical connector 2 so that the insertion holes 4a coincide with the laminated holes 2h. I do.

Next, the lamination pins 3, 3 are sequentially inserted into the insertion holes 4a and the plurality of lamination holes 2h from above the stacked optical connectors 2. Next, a retaining plate 5 is provided in each of the mounting grooves of the laminated pins 3 and 3 extending from the lowermost optical connector 2.
Are attached together. Thereby, the plurality of optical connectors 2
As shown in FIG. 1, FIG. 4, and FIG. 5, the stacked optical connector 1 is easily assembled. At this time, since the retaining pins 5 are integrally mounted in the mounting grooves, the laminated pins 3 are not pulled out even if a pulling force acts upward. Further, when the laminated optical connector 1 is disassembled into individual optical connectors 2, the disassembly can be easily performed by the reverse procedure.

In the laminated optical connector 1 in which the plurality of optical connectors 2 are laminated as described above, after the fitting pins are inserted into the pin holes 2j, 2j of each optical connector 2, another laminated optical connector 2 is formed. Batch connection is made with the connector 1. Then, the stacked optical connectors 1, 1 connected collectively are provided with stacked state holders (hereinafter, referred to as "holders") 10, 10 from both sides.

As shown in FIGS. 6 to 9, the holder 10 includes the same number of clips 11, alignment plates 12 and holding plates 13 as the optical connector 2. As shown in FIGS. 6 and 7, the clip 11 has elastic pressing portions 11 b, at both ends of a widthwise long plate member having a holding portion 11 a formed at the center.
11b is curved, and four stopper pieces 11c are formed at positions adjacent to the holding portion 11a. The clip 11 is removably mounted over the corresponding optical connectors 2 and 2 of the collectively connected laminated optical connectors 1 and 1 and pressed in a butt direction, and a plurality of stacked optical connectors 2 are stacked. Regulate direction deviation.

As shown in FIG. 9, a plurality of holding grooves 12a for holding the holding portion 11a of the clip 11 are formed at predetermined intervals in accordance with the lamination pitch of the plurality of optical connectors 2, and the alignment plate 12 is held at both ends. Tapered guide portions 12b, 12b are provided for smoothly guiding attachment and detachment with the plate 13.
The alignment plate 12 is detachably engaged with the holding plate 13,
The holding portions 11a are held by the holding grooves 12a, and the plurality of clips 11 are held at predetermined intervals according to the lamination pitch of the optical connector 2.

The holding plate 13 has loop-shaped engaging portions 13a, 13a which are detachably engaged with the guide portions 12b, 12b of the alignment plate 12 at both ends of the elongated metal plate.
The holder 10 is configured as described above. When the holder 10 is mounted from both sides of the laminated optical connectors 1 and 1 connected collectively, the pressing portions 11b and 11b of each clip 11 are attached to the flanges of the corresponding optical connectors 2 and 2. The ferrule 2 is elastically deformed while being guided by the arc-shaped guide portions 2g, 2g provided on the portions 2e, 2e.
a elastically comes into contact with the rear part of a. In parallel with this, the clip 11 has a step-like locking portion 2f provided on each of the four ferrules 2a at corresponding positions.
Abut.

Here, when the holder 10 is mounted on the laminated optical connectors 1 and 1 connected collectively, in each laminated optical connector 1, each laminated optical connector 2 has a slight degree of freedom in the laminating direction. Further, since each pressing portion 11b of the clip 11 is elastically deformed while being guided by the guide portion 2g when mounted on the ferrule 2a, each clip 11 is smoothly mounted without exerting excessive stress on the ferrule 2a. Therefore, the ferrule 2a is not damaged.

Accordingly, as shown in FIGS. 10 and 11, the multilayer optical connectors 1, 1 connected collectively are provided with the holder 10, and the pressing of the clip 11 elastically abutting the rear portion of each ferrule 2a. Pressed in the butting direction by the portions 11b, 11b, and the locking portions 2 of each ferrule 2a
The stopper pieces 11c abutting on f restrict displacement of the stacked optical connectors 2 in the stacking direction, and the stacked state is maintained.

When the connection of the laminated optical connectors 1 and 1 is released, the holder 10 can be easily detached from the laminated optical connectors 1 and 1 by pulling the holder to the side. The connection of the optical connectors 1 and 1 can be easily released simply by pulling the stacked optical connectors 1 and 1 apart.

[0021]

As is apparent from the foregoing description, according to the multilayer optical connectors stacked state holder of data of the present invention, a plurality of optical connectors laminated in one pair of stacked light connector lump sum connected This provides an excellent effect that the optical connector can be attached and detached without causing breakage, and can be held in a stacked state without shifting a plurality of stacked optical connectors in the stacking direction or the butting direction.

[Brief description of the drawings]

FIG. 1 is a front view of a laminated optical connector of the present invention.

FIG. 2 is a plan view of an optical connector constituting the laminated optical connector of FIG.

FIG. 3 is a side view of an optical connector constituting the laminated optical connector of FIG. 1;

FIG. 4 is a side view of the laminated optical connector of FIG. 1;

FIG. 5 is a plan view of the laminated optical connector of FIG. 1;

FIG. 6 is a plan view of a clip constituting a stacked state holder for holding a stacked state of the stacked optical connectors which are connected together by abutting each other.

FIG. 7 is an arrow view of the clip of FIG. 6 viewed from the arrow direction.

FIG. 8 is an assembly view of the laminated state holder.

9 is a sectional view taken along the line VIV-VIV of FIG.

FIG. 10 is a plan view showing a state in which a laminated state holder is mounted on the laminated optical connectors which are connected together by abutting each other.

FIG. 11 is a side view of FIG. 10;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 laminated optical connector 2 optical connector 3 laminated pin 5 retaining plate 10 laminated state holder 11 clip (locking member) 11 b pressing portion 11 c stopper piece (restriction piece) 12 alignment plate 13 holding plate

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Toshihiko Ota 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Inside Furukawa Electric Co., Ltd. (72) Inventor Jun Yamakawa 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Inside Electric Industry Co., Ltd. (72) Inventor Hiroyuki Yamada 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric Co., Ltd. (72) Inventor Etsuo Tanabe 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Furukawa Electric (72) Inventor Shinji Nagasawa 1-6-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (56) References JP-A-4-216511 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) G02B 6/38

Claims (1)

(57) [Claims] A plurality of ferrules are collectively laminated with a small degree of freedom in a laminating direction by laminating pins inserted into lamination holes formed at corresponding positions on both sides of each ferrule of a plurality of optical connectors. A set of stacked optical connectors that are assembled by detachably attaching a retaining plate to the end of the pin, butted together and connected together, are connected to the rear of the ferrule via the guide formed at the rear of each ferrule. It has a pressing portion that elastically abuts and presses the corresponding ferrules in the butting direction, and a restricting piece that locks to each of the ferrules and restricts displacement in the stacking direction, and is attached to and detached from the side of each of the ferrules. A plurality of locking members which are freely mounted, and an alignment member and a holding member which are detachably engaged with each other and hold each of the locking members at a predetermined arrangement interval; A laminated state holder for a laminated optical connector, wherein said set of laminated optical connectors, which are integrally mounted on a connector and connected collectively, are kept in a laminated state.