JP2008046146A - Adapter for optical connector interconnection - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an adapter for optical connector interconnection capable of improving operability and reducing cost in the fabrication by performing light shielding in a plurality of insertion parts simultaneously by the use of a light shielding member consisting of one component. <P>SOLUTION: The adapter for optical connector interconnection includes sleeve holders 4 which are inserted to respective openings of a housing 1 having a plurality of openings on both ends capable of receiving optical connector plugs from both directions via split sleeves 3. The adapter for optical connector interconnection further includes an insertion part 12 which is removably locked between both openings of the housing 1 and a plurality of light shielding plates 13 of jutting out on the insertion part 12 so as to shield emission light from the sleeve holders 4 of the interior sides in respective openings at the same time. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an optical connector interconnection adapter that interconnects a pair of opposing optical connector plugs such as LC type connectors, for example.

When one optical connector plug is removed from the housing of the optical connector interconnection adapter that interconnects a pair of opposing optical connector plugs, the light emitted from the other optical connector plug is emitted from the sleeve holder inside the insertion portion. Leaks. In order to shield this emitted light, conventionally, as disclosed in Patent Document 1, a substantially L-shaped shutter plate is sandwiched and fixed on the bottom outer wall of the housing, and the rising portion of the shutter plate is placed in the insertion portion. There is a technology that is an adapter with a light-shielding shutter that faces the back side.
JP 2001-194562 A

  However, conventionally, each shutter plate is fixed to each of the plurality of insertion portions of the housing, and the rising portions of the shutter plates are faced to the back side in the insertion portion in an independent state. There is a problem that the cost is increased and the assembling work becomes very troublesome.

  Therefore, the present invention has been devised in view of the conventional circumstances as described above, and each insertion of a housing having a plurality of insertion portions with both end openings capable of receiving a bidirectional optical connector plug. In an optical connector interconnection adapter comprising a sleeve holder inserted through a split sleeve in the part, light shielding in a plurality of insertion parts can be performed simultaneously with a light shielding member made of one point component, thereby improving workability in manufacturing. An object of the present invention is to provide an optical connector interconnection adapter capable of reducing the cost.

  In order to solve the above-described problem, in the present invention, a sleeve holder inserted into each opening of a housing having a plurality of openings at both ends capable of receiving an optical connector plug from both directions via a split sleeve. An optical connector interconnection adapter comprising: an insertion portion that is detachably locked to the opening side of the housing; and an insertion portion that simultaneously shields light emitted from the sleeve holder inside each opening. A light-shielding member comprising a plurality of light-shielding plates protruding is provided.

  The light shielding member has a bifurcated shape extending from the insertion portion so as to simultaneously shield the insertion portion that is attached and locked between the two openings of the housing having two openings, and the light emitted from the sleeve holder on the inner side of both openings. And a pair of light-shielding plates provided in a protruding manner.

  The light-shielding member shields the light emitted from the sleeve holder on the back side in each opening and the insertion portion that is mounted and locked from the upper end side or the lower end side in each opening of the housing having three or more openings. It consists of a plurality of light shielding plates protruding from the insertion portion corresponding to each opening.

  On the inner side of the insertion portion, there is provided a locking piece that prevents the light shielding member attached between both openings from being detached.

  According to the present invention, for optical connector interconnection comprising a sleeve holder inserted through each split sleeve into each opening of a housing having a plurality of openings at both ends capable of receiving an optical connector plug from both directions. In the adapter, light shielding in a plurality of openings can be performed simultaneously with a light shielding member made of one point component, so that workability in manufacturing and cost reduction can be achieved.

  In particular, in any one of two-fiber or four-fiber optical connector interconnection adapters in which a pair of sleeve holders are arranged in opposite directions in an integral housing, for example, light shielding by a simple structure of one-point components With a member, light shielding in a plurality of openings can be performed simultaneously.

  Furthermore, since the locking piece for preventing the light shielding member attached between the openings from being detached is provided inside the insertion portion, it is possible to prevent the light shielding member from being detached due to the insertion / removal of the optical connector plug. .

The best mode for carrying out the present invention will be described below with reference to the drawings.
Reference numeral 1 shown in the drawing is an external housing constituting a two-fiber optical connector interconnection adapter for interconnecting a pair of opposing optical connector plugs such as LC type connectors.

  As shown in FIGS. 1, 2, and 5, the outer housing 1 is formed by a rectangular cylindrical body that allows a pair of opposed optical connector plugs P to be inserted into each other from both end openings. 2 (b) and FIG. 4, a central partition 6 is integrally formed at the center of the optical connector plug P from the inner side for mounting and holding the optical connector plug P tip. A pair of left and right sleeve holders 5 having a cylindrical shape protruding toward one opening side are provided.

  As shown in FIG. 3, a protrusion 7 having a guide groove 7a at the center of the lower surface for inserting the upper side of the inner housing 2 is formed in the outer housing 1 along the central longitudinal direction of the upper inner wall surface. Furthermore, a concave guide groove 7b is formed along the longitudinal direction for inserting the lower side of the inner housing 2 along the central longitudinal direction of the lower inner wall surface.

  Then, the split sleeve 3 is inserted into the sleeve holder 5 from the central partition 6 side, and a pair of left and right disposed at right angles to one end in the longitudinal direction of the rectangular plate body so as to face the central partition 6. The inner housing 2 formed by projecting a cylindrical sleeve holder 4 on each of the right-angle plates is inserted along the upper and lower guide grooves 7a and 7b from the other opening side of the outer housing 1, so that the central partition portion 6, both sleeve holders 4 and 5 are arranged to project in opposite directions. As a result, as shown in FIG. 2B, the split sleeve 3 is inserted into the sleeve holders 4 and 5.

Further, as shown in FIG. 1 or FIG. 3, one end side of the outer housing 1 is formed with arc-shaped notches 9 on the upper end surfaces of the side plates 1a and 1b and the central guide groove 7a. An arcuate notch 10 is also formed on the front upper end surface of the inner housing 2. Therefore, when the inner housing 2 is inserted into the outer housing 1 along both the upper and lower guide grooves 7a and 7b until it comes into contact with the central partition 6, as shown in FIG. 2 notches 10 coincide with each other.
Note that the notches 9 and 10 may be formed on both ends of the outer housing 1.

  Further, as shown in FIGS. 3 to 5, a light shielding member 11 for simultaneously shielding light emitted from the sleeve holder 4 (or the sleeve holder 5) on the inner side of both openings is provided on one end side of the outer housing 1. It is attached so that it can be detached.

  That is, as shown in FIGS. 3 and 6, the light shielding member 11 includes a U-shaped insertion portion 12 that is attached and locked to a groove portion 14 that is recessed from the front center of the inner housing 2 to the left and right side surfaces. And a pair of light-shielding plates 13 that are bifurcated from both ends of the insertion portion 12 and are bent so that both ends are directed outward.

  As shown in FIG. 6 (d), locking pieces 15 are directed to the inner wall surfaces of the insertion portion 12 facing each other inward to prevent the insertion portion 12 mounted in the groove portion 14 from being detached. Projected by cutting up. On the other hand, a locking hole 16 for locking the locking piece 15 is formed on the groove 14 side.

  As shown in FIG. 5, when the optical connector plug P is inserted into the opening, the light shielding plate 13 pushes the light shielding plate 13 against the inner wall surface of the opening, and when the optical connector plug P is extracted from the opening, Arbitrary spring pressure is applied outward from the insertion portion 12 so as to return the light shielding plate 13 to the light shielding position.

Next, an example of use, assembly, and operation of the best mode configured as described above will be described.
When assembling the adapter, first, as shown in FIG. 3, approximately half of the split sleeve 3 is inserted from the central partition 6 side of the outer housing 1 toward the inside of the sleeve holder 5.

  Then, the inner housing 2 is inserted along the upper and lower guide grooves 7a and 7b up to the position of the central partition 6 in the outer housing 1. At this time, the other substantially half of the split sleeve 3 is inserted into the sleeve holder 4 of the inner housing 2.

  Thus, as shown in FIG. 2 (a), the sleeve holders 4 and 5 protrude in opposite directions through the central partition 6, and the sleeve 3 is completely inserted into the sleeve holders 4 and 5. It will be inserted.

Further, the light shielding member 11 is mounted in the groove portion 14 of the inner housing 2.
At this time, the locking piece 15 of the insertion portion 12 is fitted and locked in the locking hole 16 of the groove portion 14. Then, as shown in FIG. 4, a pair of light shielding plates 13 extending from the both ends of the insertion portion 12 to expand toward the end are respectively attached to the sleeve holder 4 (or the sleeve holder 5) on the inner side of both openings. By facing each other, the emitted light from the sleeve holder 4 (or the sleeve holder 5) is simultaneously shielded.

  When the optical connector plugs P are interconnected, as shown in FIG. 5, the tip portions of the optical connector plugs P are inserted from both ends of the outer housing 1 and are inserted into the split sleeves 3 in the sleeve holders 4 and 5, respectively. The ferrule P1 is introduced. As a result, the optical connector plugs P are connected to each other.

  At this time, when the optical connector plug P is inserted into the opening on the side where the light shielding member 11 is mounted, the light shielding plate 13 is inserted into the opening by the optical connector plug P as shown in FIG. After the insertion of the optical connector plug P is completed, the side surface of the optical connector plug P is held by the spring pressure action of the light shielding member 11 as shown in FIG. 5B. When the optical connector plug P is extracted from the opening, the light shielding plate 13 is returned to the light shielding position by the elastic force of the light shielding member 11 itself.

  Further, instead of configuring the adapter for interconnecting optical connectors by the above-described two-core external housing 1, as shown in FIG. 7, an adapter for interconnecting optical connectors by the four-core external housing 1 may be configured. .

  That is, a total of four sleeve holders 5 that form a cylindrical shape projecting from the inside toward the one opening side for mounting and holding the tip recess of the optical connector plug in the central partition 6 in the outer housing 1. It has. Moreover, as shown in FIG. 7, the vertical partition part 8 is provided by integral molding from the center of the front-and-rear surface of the center partition part 6 toward the opening side so that the inside of the outer housing 1 may be divided into right and left along the longitudinal direction. Yes.

  And the protrusion provided with the guide groove 7a in the lower surface center for inserting the upper side of the inner housing 2 along the central longitudinal direction of these upper inner wall surfaces inside the left and right openings through the vertical partitioning portion 8. 7 are formed, and further, guide groove strips 7b are formed along the central longitudinal direction of these lower inner wall surfaces to insert the lower side of the inner housing 2.

  Then, like the two-fiber optical connector interconnection adapter described above, the split sleeve 3 is inserted into the sleeve holder 5 so that one end in the longitudinal direction of the rectangular plate body faces the central partition 6. Two inner housings 2 each formed by projecting a cylindrical sleeve holder 4 on each of a pair of right and left right-angle plates arranged at right angles to the right and left guide grooves from the left and right of the other opening side of the outer housing 1. By inserting along 7a, 7b, the four sleeve holders 4 and 5 are arranged in a projecting manner in opposite directions via the central partition 6. As a result, the split sleeve 3 is completely inserted into the sleeve holders 4 and 5.

A light shielding member 11 for simultaneously shielding light emitted from the sleeve holders at the inner side of both openings is detachably attached to one end side of the outer housing 1.
The light shielding member 11 has the same configuration as that used for the two-fiber optical connector interconnection adapter described above. That is, as shown in FIG. 3 and FIG. 6, a U-shaped insertion portion 12 that is attached and locked to a groove portion 14 that is recessed from the center of the front portion of the inner housing 2 to the left and right side surfaces, and the insertion portion 12. A pair of light-shielding plates 13 formed at both ends thereof, and a locking piece 15 for preventing separation from the groove portion 14 projecting from the insertion portion 12.

  When the light shielding members 11 configured in this way are mounted one by one in the groove portions 14 of the inner housing 2 that are fitted into the openings on both sides of the vertical partition 8 in the center of the outer housing 1, the respective locking pieces 15 are engaged with the grooves 14. The light is emitted from the sleeve holder 5 at the back of each opening by the light shielding plate 13 while being fitted and locked in the hole 16.

1 is a perspective view showing a two-core optical connector interconnection adapter in the best mode for carrying out the present invention. FIG. Similarly, it shows an optical connector interconnection adapter for two cores, (a) a plan view, (b) is a cross-sectional view taken along line XX in (a), (c) is a left side view, and (d) is a right side. FIG. It is a disassembled perspective view which shows the state which similarly inserts a split sleeve, an internal housing, and a light-shielding member in an external housing. Similarly, a state in which a split sleeve, an inner housing, and a light shielding member are inserted into the outer housing is shown, (a) is a longitudinal sectional view, and (b) is a YY sectional view of (a). Similarly, it shows a state in which an optical connector plug is inserted into an optical connector interconnection adapter for two cores, (a) is a partially cutaway sectional view during plug insertion, and (b) is a partially cutout in a plug insertion completed state. It is sectional drawing. An example of the light shielding member used for the optical connector interconnection adapter for 2 cores is shown, (a) is a plan view, (b) is a side view, (c) is a bottom view, and (d) is a front view. . It is a perspective view which shows the adapter for optical connectors for 4 cores.

Explanation of symbols

P Optical connector plug 1 External housing 2 Internal housing 3 Split sleeve 4, 5 Sleeve holder 6 Central partition 7 Projection 7a, 7b Guide groove 8 Vertical partition 9, 10 Notch 11 Light shielding member 12 Insertion part 13 Light shielding plate 14 Groove 15 Locking piece 16 Locking hole

Claims (4)

  An adapter for interconnecting an optical connector comprising a sleeve holder inserted into each opening of a housing having a plurality of openings at both ends capable of receiving an optical connector plug from both directions via a split sleeve, the housing And a light shielding member comprising a plurality of light shielding plates projecting from the insertion portion so as to simultaneously shield the light emitted from the sleeve holder on the inner side of each opening. An adapter for interconnecting optical connectors.   The light shielding member has a bifurcated shape extending from the insertion portion so as to simultaneously shield the insertion portion that is attached and locked between the two openings of the housing having two openings, and the light emitted from the sleeve holder on the inner side of both openings. The adapter for interconnecting optical connectors according to claim 1, comprising a pair of light shielding plates projecting from the optical connector.   The light-shielding member simultaneously shields the light emitted from the sleeve holder on the back side in each opening and the insertion portion that is attached and locked from the upper end side or the lower end side of each opening of the housing having three or more openings. 2. An optical connector interconnection adapter according to claim 1, comprising a plurality of light shielding plates protruding from the insertion portion corresponding to each opening.   The adapter for interconnecting optical connectors according to any one of claims 1 to 3, further comprising: a locking piece that prevents the light shielding member attached between the openings from being detached inside the insertion portion.

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