JP2006323086A - Optical fiber connecting part storage device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical fiber connecting part storage device in which downsizing and a low cost are achieved by a reduction in the size of an outer shape and workability is improved by simplifying clamping of an optical fiber. <P>SOLUTION: The optical fiber connecting part storage device includes: a receiving-side member 31 having a coated optical fiber connecting part storage section 32 storing a coated optical fiber connecting part in which the coated optical fibers are connected together, and an optical fiber coating clamp section 33 constituted of a projecting structure to clamp the coating of the optical fibers; and a pressing-side member 35 fitted to the receiving-side member 31 to cover it. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an optical fiber connection portion storage device that is used for extending a wiring cable and stores an optical fiber connection portion.

  FIG. 4 is an exploded top view showing an optical rosette which is an example of a conventional optical fiber connector housing device. As shown in FIG. 4, the optical rosette is composed of an optical fiber connector housing body 11 and a cover 12. The optical fiber connector housing body 11 is provided with a cable gripping portion 14 for gripping the indoor optical fiber 13, and the core wire 15 of the indoor optical fiber 13 is wound and stored in the extra-long core wire storage portion 16. The core wire connecting portion for connecting the core wires 15 is accommodated in the connection portion accommodating portion 17.

  5 and 6 are front views showing a tension member gripping tool as an example of a conventional optical fiber gripping tool. After loosening the mounting screw 22 of the tension member gripping tool 21 as shown in FIG. 5A, the tension member 24 provided inside the sheath of the optical fiber cable 23 is removed as shown in FIG. 5B. In the exposed state, as shown in FIG. 6, the tension member 24 is attached to the tension member gripping tool 21 and the attachment screw 22 is tightened to grip the tension member 24 to the tension member gripping tool 21.

  As conventional technology, optical fiber core wires to be connected are connected by a fusion sleeve or mechanical splice, and an extra length of the optical fiber core wire required when connecting or reconnecting the optical fiber core wires is secured. There is known an optical rosette or the like provided with an extra long core wire storage part for storing the extra length of the optical fiber core wire. In addition, there are known optical fiber gripping methods using a cable gripping portion, a method of gripping using a Kevlar material provided inside the cable, and the like.

As a known technique related to the present invention, a technique of connecting an optical cable using an optical cable connector at the time of wiring cable extension construction is known (for example, see Patent Document 1).
JP 2004-29155 A

  When using an optical rosette having a conventional extra long core wire storage section, in addition to the optical fiber connection section storage section, an extra long core wire storage section for securing the extra core length is required. The body size has increased, and it has been necessary to provide an installation space suitable for the size of the case. In addition, since a cable gripping member, a tension member, a Kevlar, or the like is used for gripping an optical fiber, a dedicated gripping member or cable processing is required for the gripping.

  The present invention has been made in view of the above circumstances, and an optical fiber connection portion that enables downsizing and cost reduction by reducing the outer size and improving workability by simplifying gripping of the optical fiber. An object is to provide a storage device.

  In order to achieve the above object, an optical fiber connector housing apparatus according to the present invention includes an optical fiber core wire connector housing portion in which an optical fiber core wire connector in which optical fiber core wires are connected to each other, and an optical fiber. A receiving side member including an optical fiber covering and holding portion having a protruding structure for holding the covering, and a pressing side member fitted so as to cover the receiving side member.

  In the optical fiber connection portion storage device of the present invention, an elongated body having a U-shaped cross section is used as a receiving member, an optical fiber core wire connection portion storage portion is provided at the center portion, and optical fibers are provided at both ends. A coating gripping portion is provided, and an optical fiber coating gripping portion having a protruding structure for gripping the coating of the optical fiber is provided at both ends of the elongated body having a U-shaped cross section as a pressing side member. is there.

  The optical fiber connection portion storage device of the present invention is characterized in that a plurality of protrusions protruding in the pulling and pushing directions of the optical fiber are provided as the protrusion structure of the optical fiber covering and gripping portion.

  Further, the optical fiber connection portion storage device of the present invention has a protruding structure of the optical fiber coating gripping portion that protrudes at an angle of 45 ° in the optical fiber pulling direction and protrudes at an angle of 45 ° in the optical fiber pushing direction. A protrusion is provided.

  Further, the optical fiber connection portion storage device of the present invention is characterized in that, as the protrusion structure of the optical fiber coating gripping portion, protrusions protruding in the optical fiber pulling direction and protrusions protruding in the optical fiber pushing direction are alternately provided. It is what.

  Further, the optical fiber connection portion storage device of the present invention is characterized in that the protrusion structure protruding in the optical fiber and the protrusion protruding in the push direction of the optical fiber are provided in the same number as the protrusion structure of the optical fiber coating gripping portion. It is what.

  Moreover, the optical fiber connection part accommodating apparatus of the present invention is characterized in that a fixing hole is provided in the receiving side member.

  Since the optical fiber connector storage device of the present invention can be reduced in size by reducing the outer size, it is easy to improve the aesthetics of the optical wiring in the building and secure the installation space, and to reduce the number of components. It is possible to reduce the cost, and further simplifying the gripping of the optical fiber leads to an improvement in workability, exerts an effect on the spread of the optical wiring, and has an effect of simplifying the extension connection work of the optical fiber, for example. .

  Embodiments of the present invention will be described below in detail with reference to the drawings.

  FIG. 1 is an exploded perspective view showing an optical fiber connector housing apparatus according to an embodiment of the present invention. In FIG. 1, a receiving side member 31 made of an elongated body having a U-shaped cross section is provided with an optical fiber core wire connection portion storage portion 32 at the center, and the optical fiber core wire connection portion storage portion 32 has an optical fiber. An optical fiber core wire connecting portion in which the core wires are connected by mechanical splice connection or the like is stored. Optical fiber coating and gripping portions 33 each having a protruding structure are provided at both ends of the receiving member 31, and the optical fiber coating and gripping portions 33 are gripped by the optical fiber coating. The receiving member 31 is provided with a plurality of fixing holes 34. A screw is inserted into the fixing hole 34 and attached to a building or the like for optical wiring.

  The receiving side member 31 is fitted so as to cover a pressing side member 35 made of an elongated body having a U-shaped cross section. Optical fiber coating and gripping portions 36 each having a protruding structure are provided at both ends of the pressing side member 35, and the optical fiber coating and gripping portion 36 holds the optical fiber coating.

  FIG. 2A is an exploded perspective view showing a use state of the optical fiber connection portion storage device according to the embodiment of the present invention, and FIG. 2B is an optical fiber connection portion storage according to the embodiment of the present invention. It is a perspective view which shows the use condition of an apparatus. In FIG. 2A, an optical fiber core wire connection portion 37 connected by mechanical splice connection or the like is disposed in the optical fiber core wire connection portion storage portion 32 of the receiving member 31, and the optical fiber core wire connection portion 37. Is connected to the optical fiber core 38. A coating 40 of an indoor optical fiber 39 is arranged on the optical fiber coating gripping portion 33 of the receiving side member 31, and an optical fiber core wire 38 is built in the indoor optical fiber 39. Thereafter, in FIG. 2B, the receiving side member 31 is fitted so as to cover the pressing side member 35. In this case, the coating 40 of the indoor optical fiber 39 is gripped by the optical fiber coating gripping portions 36 provided at both ends of the pressing side member 35.

  FIG. 3 is a perspective view showing the protrusion structure of the optical fiber coating gripping part according to the embodiment of the present invention. In FIG. 3, as the protrusion structure of the optical fiber coating grips 33 and 36, there are provided four protrusions 41 that project at an angle of 45 ° in the optical fiber pulling direction and project at an angle of 45 ° in the push-in direction of the optical fiber. The four protrusions 42 are integrally provided. Each of the protrusions 41 and 42 is formed in a triangular pyramid cross section, and is formed by forming a curved concave portion at the center.

  The protrusion structure of the optical fiber coating gripping portion may be configured such that protrusions protruding in the optical fiber pulling direction and protrusions protruding in the optical fiber pushing direction are alternately provided.

  Further, as the protrusion structure of the optical fiber covering and gripping portion, any number of protrusions protruding in the optical fiber pulling direction and protrusions protruding in the optical fiber pushing direction may be provided.

  Also, other methods may be used for fitting the receiving side member and the pressing side member. For example, a concave portion is provided in the receiving side member, a convex portion is provided in the pressing side member corresponding to the concave portion, and the convex portion is inserted into the concave portion. Then, the pressing side member may be fitted so as to cover the receiving side member.

  That is, the optical fiber connection unit storage device according to the present embodiment includes a pressing member and a receiving member, and forms a casing by fitting the pressing member and the receiving member. The optical fiber core wire connection portion is stored in the optical fiber core wire connection portion storage portion of the receiving member, and the indoor optical fiber or the optical fiber core cord is held by the optical fiber coating grips at both ends of the holding side member and the receiving side member. It has a function of gripping the entire coating. Therefore, the shape of the receiving side member only needs a space that can store the optical fiber core wire connecting portion storage portion and the optical fiber coating gripping portion, and hardly needs a space for storing the extra length of the core wire.

  As described above, the optical fiber connection portion storage device according to the present embodiment does not require the exposure of the optical fiber core portion and the connection extra length in the connection of the optical fiber, and the connection portion by a fusion sleeve, a mechanical splice, or the like. Can be stored. Further, the connection portion is not limited to the type of connection. For example, a connecting portion using an SC connector or an MTRJ connector may be used. Further, the number of optical fiber cores that can be stored can be stored regardless of the number of optical fiber cores such as one, two, four cores, and eight cores, the shape of single fibers, tapes, and the like. Regardless of the type and shape of the optical fiber such as the indoor optical fiber or optical cord, the coated portion can be used without using a tension member or Kevlar material in the indoor optical fiber or optical cord, or in the optical fiber core. The optical fiber can be gripped by the optical fiber connector housing device itself without any influence.

  In addition, it is necessary to reconnect the optical fiber by eliminating the need for a dedicated cable gripping member and cable processing by adopting a structure that can directly cover the covered portion of the indoor optical fiber or optical cord with the optical fiber connection storage device. By securing the extra length of the core wire with a cable part that does not tear the coating, such as indoor optical fiber, the size of the housing of the optical fiber connection storage device can be reduced without the need for the extra cable length storage portion. It can be installed even if the installation space is small.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, constituent elements over different embodiment examples may be appropriately combined.

It is a disassembled perspective view which shows the optical fiber connection part accommodating apparatus which concerns on the example of embodiment of this invention. (A) is a disassembled perspective view which shows the use condition of the optical fiber connection part accommodating apparatus which concerns on the example of embodiment of this invention, (b) is the use condition of the optical fiber connection part accommodating apparatus which concerns on the example of embodiment of this invention. FIG. It is a perspective view which shows the protrusion structure of the optical fiber coating | coated holding part which concerns on the example of embodiment of this invention. It is a decomposition | disassembly top view which shows the optical rosette which is an example of the conventional optical fiber connection part storage apparatus. It is a front view which shows the state before attachment of the tension member holding tool which is an example of the conventional optical fiber holding tool. It is a front view which shows the state after attachment of the tension member holding tool which is an example of the conventional optical fiber holding tool.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 31 ... Reception side member, 32 ... Optical fiber core wire connection part accommodating part, 33 ... Optical fiber coating | coated holding part, 34 ... Fixing hole, 35 ... Holding side member, 36 ... Optical fiber coating | coated holding part.

Claims (7)

An optical fiber core wire connection portion storage portion for storing an optical fiber core wire connection portion in which optical fiber core wires are connected to each other, and an optical fiber coating gripping portion having a protruding structure for gripping the optical fiber coating. Side members;
An optical fiber connection portion storage device comprising: a pressing side member fitted so as to cover the receiving side member. As the receiving member, an elongated body having a U-shaped cross-section is used, an optical fiber core wire connecting portion storage portion is provided in the center portion, and optical fiber coating gripping portions are provided at both ends,
2. The optical fiber connection according to claim 1, wherein the holding member is provided with an optical fiber coating holding portion having a protruding structure for holding the optical fiber coating at both ends of the elongated body having a U-shaped cross section. Department storage device.   3. The optical fiber connection portion storage device according to claim 1, wherein a plurality of protrusions protruding in a pulling direction and a pushing direction of the optical fiber are provided as the protrusion structure of the optical fiber covering and gripping portion.   4. The protrusion structure of the optical fiber covering and gripping portion is provided with a plurality of protrusions that protrude at an angle of 45 ° in the optical fiber pulling direction and protrude at an angle of 45 ° in the optical fiber pushing direction. The optical fiber connection part accommodating apparatus of description.   5. The optical fiber according to claim 3, wherein the protrusion structure of the optical fiber covering and gripping portion includes a protrusion protruding in the pulling direction of the optical fiber and a protrusion protruding in the pushing direction of the optical fiber. Connection unit storage device.   6. The projection structure of the optical fiber covering and gripping portion is provided with the same number of projections protruding in the optical fiber pulling direction and protrusions protruding in the optical fiber pushing direction. Optical fiber connector storage device.   7. The optical fiber connection portion storage device according to claim 1, wherein a fixing hole is provided in the receiving side member.

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