JP4909174B2 - Light rosette - Google Patents

Description

  The present invention relates to a rosette suitable for connecting optical cables.

Conventionally, an optical rosette for connecting an input-side optical cable led from the outdoors to an indoor side and an output-side optical cable connected to an indoor device is known or well known. For example, see http: // www. fujikura. co. jp / cnc / boxes. The optical termination box FDB-PR-12SC described in html (Non-patent Document 1) is of a pre-wiring module type and can be used to connect an input side optical cable and an output side optical cable indoors. it can. This optical termination box is comprised by the base | substrate member and the cover member which covers it. In the base member, since the optical cable on the input side introduced from the outside of the optical termination box extends to the module type connector, the optical cable on the input side and the optical cable on the output side are inserted by inserting the output side connector into the connector. And can be connected.
http: // www. fujikura. co. jp / cnc / boxes. html

  In an optical rosette such as the optical termination box, the position where the optical cable on the input side enters and the position of the input side connector into which the output side connector is to be inserted are fixed. For example, FTTH (Fiber To The Home) At the service work site, it is impossible to meet the demand for adjusting the direction in which the optical cable on the input side extends and the direction in which the optical cable on the output side extends in the vicinity of the optical termination box.

  Accordingly, an object of the present invention is to provide an optical rosette capable of adjusting the direction in which the input-side optical cable extends and the direction in which the output-side optical cable extends.

The present invention includes the first invention and the second invention. In order to solve the above-mentioned problems, the first and second inventions are directed to a connector plug attached to the end portion of the input optical cable and a connector socket attached to the end portion of the output optical cable. An optical rosette for connection.

In this optical rosette, the features of the first invention are as follows. The optical rosette is formed into a flat rectangular parallelepiped shape by a body that can accommodate the connector socket and a lid that can be removably fitted to the body and can be closed. The body has a rectangular bottom, and a first peripheral wall portion erecting from each peripheral edge of the rectangular bottom with respect to said bottom. Bottom of the rectangular and a plurality of sites groove penetrating the first wall portion so as to be able to guide the pre-SL output cable from the inside of the body toward the outside in the circumferential direction of the first wall portion Are formed on the first peripheral wall portion rising from the peripheral edge of the three sides . A first opening forming a part of the opening of the optical rosette for entering and retracting the connector plug is formed in a first peripheral wall portion that stands up from a peripheral edge of one side of the rectangular bottom portion . The lid has a rectangular top portion and a second wall portion which removably fitted to one of the inner and outer be formed respectively on the peripheral edge of the rectangular top section and the first wall portion. The second peripheral wall portion has a plurality of protrusions toward the groove that can enter the grooves and close the grooves in the inner and outer directions when the body is closed by the lid. And a protrusion selected from the plurality of protrusions is cut to allow the groove to guide the output optical cable from the inside to the outside of the body , and A second opening that forms the opening in cooperation with the first opening is formed. Of the four first peripheral wall portions, a front peripheral wall portion in which the first opening is formed, a rear peripheral wall portion parallel to the front peripheral wall portion, and orthogonal to and parallel to the front peripheral wall portion and the rear peripheral wall portion. A groove is formed in each of the two side peripheral wall portions and the side peripheral wall portion separated from the first opening.
In this optical rosette, the features of the second invention are as follows. The optical rosette is formed into a flat rectangular parallelepiped shape by a body that can accommodate the connector socket and a lid that can be removably fitted to the body and can be closed. The body includes a rectangular bottom portion and first peripheral wall portions that stand up from the periphery of the rectangular bottom portion with respect to the bottom portion. Grooves that penetrate the first peripheral wall portion are a plurality of portions in the circumferential direction of the first peripheral wall portion so that the output optical cable can be guided from the inside to the outside of the body, and the bottom of the rectangular shape It is formed in the 1st surrounding wall part which stands up from the periphery of three sides, respectively. A first opening forming a part of the opening of the optical rosette for entering and retracting the connector plug is formed in a first peripheral wall portion that stands up from a peripheral edge of one side of the rectangular bottom portion. The lid includes a rectangular top portion and a second peripheral wall portion that is formed on the periphery of the rectangular top portion and is detachably fitted to either the inside or the outside of the first peripheral wall portion. The second peripheral wall portion has a plurality of protrusions toward the groove that can enter the grooves and close the grooves in the inner and outer directions when the body is closed by the lid. And a protrusion selected from the plurality of protrusions is cut to allow the groove to guide the output optical cable from the inside to the outside of the body, and A second opening that forms the opening in cooperation with the first opening is formed. Of the four first peripheral wall portions, a front peripheral wall portion in which the first opening is formed, a rear peripheral wall portion parallel to the front peripheral wall portion, and orthogonal to and parallel to the front peripheral wall portion and the rear peripheral wall portion. A groove is formed in each of the two side peripheral wall portions and the side peripheral wall portion separated from the first opening. There is provided a shutter that can open and close the opening formed by the cooperation of the first and second openings and is biased in the closing direction. The color of the top of the lid is different from the color of the shutter.

  In one preferred embodiment of the present invention, there is provided a shutter that can open and close the opening formed by the cooperation of the first and second openings and is biased in the closing direction.

  In another preferred embodiment of the present invention, the shutter is interposed between the body and the lid and reciprocates in one direction, and the bottom portion of the body and the lid of the lid The top part is formed with either a slide groove capable of guiding the shutter that performs the sliding motion and slidably fitted to each other and a mating part that is a counterpart of the slide groove. Is formed with the other party.

In another preferred embodiment of the present invention, an inner surface of the top of the lid that faces the bottom when the body is closed by the lid is in contact with the connector socket housed in the body. Thus, a raised portion capable of pressing the connector socket toward the bottom is formed.

In the optical rosette according to the present invention, the second peripheral wall portion of the lid is fitted inside or outside the first peripheral wall portion of the body. When the first peripheral wall portion and the second peripheral wall portion are fitted, the projecting portion of the second peripheral wall portion enters the groove penetrating the first peripheral wall portion, thereby closing the groove. When setting the connector socket in this optical rosette, select the groove at the most appropriate position among the grooves formed on the body in order to introduce the end portion of the output optical cable into the body with the lid removed. For the lid, the projecting portion of the second peripheral wall portion that closes the groove is cut out by a tool such as a nipper, and the inside and outside of the optical rosette are penetrated in the groove. The output optical cable is passed through the groove, and the connector socket attached to the end portion of the output optical cable is fixed at a predetermined position in the body. After that, the body and the lid are fitted together. The connector socket can be connected to a connector plug that enters the opening of the optical rosette. Such an optical rosette can easily adjust the extending direction of the output optical cable and the extending direction of the input optical cable .

In the optical rosette in which the shutter is provided, when the connector plug and the connector socket are not connected, the shutter closes the opening, so that dust can be prevented from entering the optical rosette from the opening.

  The shutter slides, and can be guided to the bottom and the top of the optical rosette, and can be slidably fitted to each other, or one of a mating part that is a counterpart of the slide groove In the optical rosette in which the other side of the shutter is formed on the shutter, when the shutter is closed, dust is scattered between the shutter and the bottom and between the shutter and the top. It is easy to prevent intrusion.

In the optical rosette form with raised portions which can be pressed it abuts the housing a connector socket to wear the inner surface of the top portion, a connector socket, it is possible to arrange in place in only by the pressing . In addition, after the lid is closed, the connector socket can be prevented from moving in the optical rosette due to external impact or vibration.

  The details of the optical rosette according to the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a perspective view of the optical rosette 1. The optical rosette 1 is made in a flat rectangular parallelepiped, and has a body 2 and a lid 3 that are separably fitted to each other. The body 2 and the lid 3 are formed with an opening 6 through which an input connector plug 4 (see FIG. 2) enters and retracts. However, the illustrated opening 6 is in a state in which the shutter 7 provided inside thereof is closed. The shutter 7 is urged to close the opening 6, but can be opened by sliding a knob 8 extending above the lid 3 in the direction of arrow A. When the shutter 7 is opened, the front end of the output connector socket 13 (see FIG. 3) housed in the optical rosette 1 is viewed through the opening 6 so that the optical connection between the connector plug 4 and the connector socket 13 becomes possible.

  2 and 3 are a view similar to FIG. 1 of the optical rosette 1 in use, and a partially broken exploded perspective view of the optical rosette 1. However, the connector plug 4, the output optical cable 11, and the input optical cable 12 indicated by solid lines in FIG. 2 are indicated by virtual lines in FIG. 3. In the optical rosette 1 of FIG. 2, the knob 8 moves in the direction of arrow A to open the opening 6, and the connector plug 4 connected to the input optical cable 12 enters the opening 6 and is connected to the connector socket 13. The body 2 is fixed to a wall, but the illustration of the wall is omitted.

In FIG. 3, the body 2 has a substantially rectangular bottom portion 21 and a peripheral wall portion 22 rising from the periphery of the bottom portion 21. The peripheral wall 22, front wall portion 22a and a rear wall portion 22b in parallel to each other, these peripheral wall 22a, the first lateral peripheral wall portion 22c and the second side peripheral wall portion 22d in parallel to each other perpendicular to 22b include. A part 6a of the opening 6 is formed in the front peripheral wall portion 22a. Further, a shutter 7 is provided on the inner side of the front peripheral wall portion 22a. The shutter 7 is slidable in the direction of arrow A and the opposite direction while being guided by the front peripheral wall portion 22a and a guide wall 24 parallel thereto. 7 is biased in a closing direction by a spring 23 (see FIG. 5). A knob 8 is formed on the top 7 a of the shutter 7. In the peripheral wall portion 22, substantially U-shaped grooves 26 communicating with the inside and outside of the body 2 are formed at a plurality of portions in the circumferential direction of the peripheral wall portion 22. In the illustrated example, grooves 26a, 26b, and 26c are formed as grooves 26 in the front peripheral wall portion 22a, the rear peripheral wall portion 22b, and the first side peripheral wall portion 22c, respectively, and these grooves 26a, 26b, The output optical cable 11 can be passed through each of 26c. FIG. 3 shows an example in which the output optical cable 11 is passed through the groove 26c. A pair of hook receiving portions 27 are formed on the outer surfaces of the first and second side peripheral wall portions 22c and 22d, respectively, but only the hook receiving portion 27 formed on the second side peripheral wall portion 22d is shown in FIG. It is shown. Inside the body 2, in order to store the output optical cable 11 and the connector socket 13, a connector socket storage portion 28a, an output optical cable guide portion 28b, and an output optical cable holding portion 28c are formed. Further, the second side peripheral wall portion 22d in the vicinity of the storage portion 28a is formed with a notch portion 28e. When the connector socket 13 stored in the storage portion 28a is picked up, a fingertip is placed on the notch portion 28e. Can be put. The guide portion 28b is formed by a rib standing from the bottom portion 21, and the rib includes a linear shape and an arc shape. The holding portion 28 c extends from the rear peripheral wall portion 22 b, the first side peripheral wall portion 22 c, the guide portion 28 b, etc. so as to be parallel to the bottom portion 21, and is output between the holding portion 28 c and the bottom portion 21. The optical cable 11 can be inserted. A through hole 29 through which a screw (not shown) for fixing the body 2 to a wall or the like can be passed is formed in the bottom portion 21.

  The lid 3 shown in FIGS. 2 and 3 has a substantially rectangular top portion 31 and a peripheral wall portion 32 formed on the periphery of the top portion 31. The peripheral wall portion 32 includes a front peripheral wall portion 32a and a rear peripheral wall portion 32b that are parallel to each other, and a first side peripheral wall portion 32c and a second side peripheral wall portion 32d that are orthogonal to and parallel to the peripheral wall portions 32a and 32b. ing. A part 6b of the opening 6 is formed in the front peripheral wall portion 32a. As shown in FIG. 1, the part 6b includes a notch 6c with respect to the top 31, and the notch 6c is formed so that a part of the shutter 7 in a closed state can be seen. By making the color of the top 31 of the lid 3 different from the color of the shutter 7, the open / closed state of the shutter 7 can be known by looking at the top 31. The front peripheral wall portion 32a, the rear peripheral wall portion 32b, and the first side peripheral wall portion 32c are fitted into the grooves 26a, 26b, and 26c formed in the body 2 to close the grooves 26a, 26b, and 26c, respectively. A protruding portion 36 is formed, and the protruding portion 36 includes protruding portions 36a, 36b, and 36c. In each of the first side peripheral wall portion 32c and the second side peripheral wall portion 32d, a pair of hook portions 37 are formed on the inner surface, and a pair of small notches 38 are formed on the edge portions. When the lid 3 is closed with respect to the body 2, the peripheral wall portion 32 of the lid 3 is fitted to the outside of the peripheral wall portion 22 of the body 2, and the hook portion 37 is removably engaged with the hook receiving portion 27 of the body 2. . When the closed lid 3 is removed from the body 2, for example, a flat screwdriver (not shown) is inserted between the body 2 and the lid 3 in the notch 38 and elastically deformed by twisting the lid 3. The engagement between the two is disengaged from each other. The top portion 31 is formed with a long hole 33 for allowing the knob 8 of the shutter 7 to travel in the direction of arrow A in FIG. Further, on the inner surface of the top portion 31, a guide groove 34 for slidably fitting a rib 77 formed on the top portion 7 a of the shutter 7, and a raised portion 35 that can come into contact with the connector socket 13 housed in the body 2. Is formed. The raised portion 35 presses the connect socket 13 with which the raised portion 35 abuts toward the bottom portion 21 so that the tip end portion of the connector socket 13 is stored in a predetermined position with respect to the opening 6, and the connector socket 13 13 prevents the optical rosette 1 from swinging.

  4, 5, and 6 are an IV-IV arrow view, a VV arrow view, and a VI-VI arrow view in FIG. 1, and FIG. 5 and 6 show the internal shape of the shutter 7. However, in these drawings, only the shutter 7 is shown by a solid line, and the body 2 and the lid 3 are shown by a virtual line. The shutter 7 has a tip wall 7b formed so as to hang from the edge of the top 7a, and a pair of side walls 7c and 7d extending in the sliding direction in parallel with each other, and a knob 8 is formed on the outer surface of the top 7a. Has been. Each of the side walls 7c and 7d is formed with a hook portion 74c and a hook portion 74d between the pair of parallel cutout portions 72c and 73c and between the cutout portions 72d and 73d. In FIG. 5, one end of a coil spring 23 is attached to a protrusion 71 formed inside the shutter 7, and the other end of the coil spring 23 is a protrusion formed on the bottom 21 of the body 2. It is attached to the part 76. The spring 23 is in a contracted state and urges the shutter 7 in a direction opposite to the arrow A, that is, in a direction in which the opening 6 is closed, and the distal end wall 7b of the shutter 7 is a second side peripheral wall portion in the body 2. It is closely attached to the inner surface of 22d (see FIG. 3).

  In FIG. 6, the shutter 7 is located between the front peripheral wall portion 22 a and the guide wall 24, and the hook portions 75 c and 75 d of the hook portions 74 c and 74 d are formed on the front peripheral wall portion 22 a and the guide wall 24. , 79 are engaged from below in the figure to prevent the shutter 7 from coming out upward from between the front peripheral wall portion 22a and the guide wall 24. When the shutter 7 is set on the body 2, when the shutter 7 is inserted between the front peripheral wall portion 22a and the guide wall 24, the hook portions 74c and 74d are elastically deformed in a direction approaching each other in FIG. 75d pass between the hook receiving portion 78 and the hook receiving portion 79, and then elastically return to the state shown in FIG.

  In the optical rosette 1, the body 2 and the lid 3 can be obtained by injection molding a thermoplastic resin such as ABS resin. The shutter 7 can also be obtained by injection molding of a thermoplastic resin. The obtained body 2 is fixed to a wall surface or the like using an appropriate screw (not shown) after setting the shutter 7 and the spring 23. The body 2 stores the connector socket 13 in the storage portion 28a, and passes the output optical cable 11 connected to the connector socket 13 through one of the grooves 26a, 26b, and 26c. On the other hand, in the lid 3, one of the protrusions 36 a, 36 b, 36 c corresponding to the groove through the output optical cable 11 is selected from the grooves 26 a, 26 b, 26 c, and the protrusion is selected from the peripheral wall portion 32 of the lid 3. Cut with a tool such as a nipper or knife. The protrusion 36 formed of the thermoplastic synthetic resin is not particularly limited in its dimensions, but the thickness and width when the optical rosette 1 is used at home is about 1 to 5 mm, respectively. Since it is sufficient, it is easy to cut. When the lid 3 is closed, all the grooves 26 not passing through the output optical cable 11 in the body 2 can be closed by the protrusions 36 of the lid 3. The groove 26 used in this way is preferably formed so that the space generated when any of the protrusions 36 of the lid 3 is cut off and the lid 3 is closed is substantially the same as the cross-sectional shape of the output optical cable 11. Has been. Before closing the lid 3, the output optical cable 11 having a margin in the inside of the body 2 is laid along the rib of the guide portion 28 selected appropriately, and the appropriately selected restraint portion. The optical cable 11 for input is kept from moving on the inner side of the optical rosette 1 so as to be placed below the 28c. Between the body 2 and the closed lid 3, the hook portion 37 of the lid 3 engages with the hook receiving portion 27 of the body 2, so that the body 2 and the lid 3 are integrated, and the shutter 7 opens the opening 6. Closed.

The optical rosette 1 formed in this way is selected from the inside of the grooves 26a, 26b, and 26c in various directions, for example, in the direction in which the connector socket 13 and the connector plug 4 are connected. Thus, the output optical cable 11 can be extended in the same direction or a direction bent by 90 degrees or 180 degrees. However, in the optical rosette 1, the peripheral wall portion 32 of the lid 3 can be fitted to the outside of the peripheral wall portion 22 of the body 2 to prevent dust from entering between the peripheral wall portions 22, 32, and the shutter. 7 and the protrusions 36a, 36b, and 36c can prevent dust from entering, so that the connecting portion of the connector socket 13 is not contaminated with dust.

  Moreover, the optical rosette 1 can improve the effect as follows. That is, the body 2 and the lid 3 are provided with guide grooves 81, 82, and 34 (see FIGS. 3 and 6) capable of sliding the shutter 7 in the direction of arrow A and the opposite direction inside the opening 6. The lower end portions 86c and 86d (see FIG. 6) of the side walls 7c and 7d of the shutter 7 are slidably fitted into the guide grooves 81 and 82, and the rib 77 on the top portion 7a of the shutter 7 can be slid into the guide groove 34. Fit. Further, the distal end wall 7b of the shutter 7 which is in contact with the inner surface of the second side peripheral wall portion 22d of the body 2 when the shutter 7 is closed is the edge portions 83 and 84 of the opening 6 (see FIGS. 1 and 3). Hide in. Instead of the illustrated example, the shutter 7 is formed with a groove extending in the sliding direction, while the body 2 and the lid 3 are provided with a rib that fits into the groove inside the opening 6 to the light rosette 1. It is also possible to prevent intrusion of dust.

In the present invention, the design of the grooves 26 to be provided in the body 2 can be changed so that the position and the number thereof match the installation environment of the optical rosette 1. In order to respond to the design change, the projecting portion 36 to be provided on the lid 3 can also be changed in design . The lid 3 can also be made so that the peripheral wall portion 32 fits inside the peripheral wall portion 22 of the body 2.

  According to the present invention, the output optical cable can be extended in various directions, and dust can be prevented from entering, and an optical rosette having a simple structure can be manufactured.

The perspective view of an optical rosette. FIG. 2 is a view similar to FIG. 1 of the rosette in use. The partially broken exploded view of an optical rosette. The fragmentary sectional view which follows the IV-IV line of FIG. The fragmentary sectional view which follows the VV line | wire of FIG. The fragmentary sectional view which follows the VI-VI line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Optical rosette 2 Body 3 Lid 6 Opening 6a 1st opening 6b 2nd opening 7 Shutter 11 Output optical cable 12 Input optical cable 13 Connector socket 21 Bottom part 22,22a, 22b, 22c, 22d 1st surrounding wall part 26,26a, 26b 26c Groove 31 Top 32, 32a, 32b, 32c, 32d Second peripheral wall 36, 36a, 36b, 36c Protruding part 86c, 86d Fitting part 77 Fitting part 81 Slide groove (guide groove)
82 Slide groove (guide groove)

Claims (5)

An optical rosette for connecting a connector plug attached to an end portion of an input optical cable and a connector socket attached to an end portion of an output optical cable,
The optical rosette is formed in a flat rectangular parallelepiped shape by a body formed to be able to store the connector socket and a lid that can be removably fitted to the body and closed.
The body has a rectangular bottom, and a first peripheral wall portion erecting from each peripheral edge of the rectangular bottom with respect to said bottom, be guided towards the outside of the front SL output cable from the inside of said body Grooves that pass through the first peripheral wall portion are formed in the first peripheral wall portion that is a plurality of portions in the circumferential direction of the first peripheral wall portion and that stands up from the peripheral edges of the three sides of the rectangular bottom portion. And a first opening that forms a part of the opening of the optical rosette that allows the connector plug to enter and retreat is formed in a first peripheral wall portion that rises from a peripheral edge of one side of the rectangular bottom ,
The lid has a rectangular top portion and a second wall portion which removably fitted to one of the inner and outer be formed respectively on the peripheral edge of the rectangular top section and the first peripheral wall, the The second peripheral wall portion has a plurality of protrusions toward the groove that can enter the grooves and close the grooves in the inner and outer directions when the body is closed by the lid. The one protrusion selected from the plurality of protrusions is cut to allow the groove to guide the output optical cable from the inside of the body to the outside, and A second opening is formed which cooperates with the first opening to form the opening ;
Of the four first peripheral wall portions, a front peripheral wall portion in which the first opening is formed, a rear peripheral wall portion parallel to the front peripheral wall portion, and orthogonal to and parallel to the front peripheral wall portion and the rear peripheral wall portion. the light rosette grooves in the side wall portions of separating the first opening of the two side wall portions and form characteristically tare Rukoto respectively. An optical rosette for connecting a connector plug attached to an end portion of an input optical cable and a connector socket attached to an end portion of an output optical cable,
The optical rosette is formed in a flat rectangular parallelepiped shape by a body formed to be able to store the connector socket and a lid that can be removably fitted to the body and closed.
The body has a rectangular bottom portion and first peripheral wall portions that stand up from the periphery of the rectangular bottom portion with respect to the bottom portion, and guides the output optical cable from the inside to the outside of the body. A groove penetrating the first peripheral wall portion is formed in each of the first peripheral wall portions, which are a plurality of portions in the circumferential direction of the first peripheral wall portion, and are erected from the peripheral edges of the three sides of the rectangular bottom portion. In addition, a first opening forming a part of the opening of the optical rosette for entering and retracting the connector plug is formed in the first peripheral wall portion rising from a peripheral edge of one side of the rectangular bottom,
The lid includes a rectangular top portion, and a second peripheral wall portion that is formed on the periphery of the rectangular top portion and is detachably fitted to either the inside or the outside of the first peripheral wall portion, The second peripheral wall portion has a plurality of protrusions toward the groove that can enter the grooves and close the grooves in the inner and outer directions when the body is closed by the lid. The one protrusion selected from the plurality of protrusions is cut to allow the groove to guide the output optical cable from the inside of the body to the outside, and A second opening is formed which cooperates with the first opening to form the opening;
Of the four first peripheral wall portions, a front peripheral wall portion in which the first opening is formed, a rear peripheral wall portion parallel to the front peripheral wall portion, and orthogonal to and parallel to the front peripheral wall portion and the rear peripheral wall portion. A groove is formed in each of the two side peripheral wall portions and the side peripheral wall portion separated from the first opening,
A shutter that can open and close the opening formed by the cooperation of the first and second openings and is biased in a closing direction;
An optical rosette characterized in that the color of the top of the lid and the color of the shutter are different.   2. The optical rosette according to claim 1, further comprising a shutter that is capable of opening and closing the opening formed by the cooperation of the first and second openings and is biased in a closing direction. The shutter is interposed between the body and the lid and reciprocates in one direction, and the shutter that reciprocates the bottom of the body and the top of the lid includes the shutter. Either of a slide groove that can be guided and slidably fitted to each other and a mating portion that is a counterpart of the slide groove are formed, and the counterpart is formed on the shutter. The optical rosette according to claim 2 or claim 3 . When the body is closed by the lid, the inner surface of the top of the lid that faces the bottom is in contact with the connector socket housed in the body and can press the connector socket toward the bottom. The optical rosette in any one of Claims 1-4 in which the protruding part is formed.

Images