JP2009168847A - Reinforcement device for optical fiber connection part and its removing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To achieve improved efficiency of operation and recycling of resources in connection change or the like of an optical fiber. <P>SOLUTION: On each opposing face of first and second rectangular members 11, 12, there are stuck urethane 14, an electrode plate 15 and adhesive 16. In detail, on the face of the first rectangular member 11, urethane 141 for clamping a coated optical fiber 20 is stuck and, on both sides of it, electrode plates 151, 153 are stuck. Then, the electrode plate 151 is coated with a first liquid 161, while the electrode plate 153 is coated with a first liquid 163. Meantime, the face of the second rectangular member 12 is stuck with urethane 142 and, on both sides of it, electrode plates 152, 154 are stuck. Then, the electrode plate 152 is coated with a second liquid 162, while the electrode plate 154 is coated with a second liquid 164. The adhesive 16 is a two-liquid reaction type adhesive in which hardening starts by contact of two liquids (first and second liquids) and is provided with energizing detachability. Incidentally, the adhesive 16 may be one-liquid reaction type alternatively. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a reinforcing device for an optical fiber connecting portion and a method for removing the same.

Conventionally, in fusion splicing, which is one of optical fiber connection methods, there are a step of splicing an optical fiber and a step of reinforcing the connected portion. It takes a long time. Therefore, a technique for improving the reinforcing process has been proposed. For example, Patent Document 1 discloses a reinforcing member and a reinforcing method that can reinforce an optical fiber connecting portion quickly and reliably and advance an optical fiber connecting step and the like quickly and reliably.
JP 2005-250294 A

  However, in the technique of Patent Document 1, when there is a change in the connection of the optical fiber or the like, the reinforcing member at the connection portion of the optical fiber cannot be easily removed. The member cannot be reused. That is, there is a problem that work such as connection change becomes inefficient and resources cannot be reused.

  The present invention has been made in view of the above-described problems, and its main purpose is to improve work efficiency and reuse resources in changing the connection of optical fibers.

  In order to solve the above-described problems, the present invention provides an apparatus for reinforcing an optical fiber connection portion, the first plate member having one surface for sandwiching the connection portion of the optical fiber, and the first plate member A second plate member having one surface facing the one surface and sandwiching the connecting portion of the optical fiber; a first electrode plate fixed to one surface of the first plate member; A second electrode plate fixed to a position facing the first electrode plate when sandwiching the connecting portion of the optical fiber among one surface of the two plate members, the first electrode plate, and the second electrode And an electrically peelable adhesive that peels from the first electrode plate and the second electrode plate when a predetermined voltage is applied between the first electrode plate and the second electrode plate while bonding the plates. It is characterized by.

  According to this configuration, when the connection portion of the optical fiber is sandwiched between the two plate members, the electrode plates fixed to the two plate members are bonded by the current-peeling adhesive. When it is desired to remove the adhesive, the adhesive can be peeled from the electrode plate by applying a predetermined voltage between the two electrode plates sandwiching the adhesive. According to this, since the plate member once bonded to sandwich the connection portion of the optical fiber can be easily removed without damaging it, the efficiency of work such as connection change of the optical fiber and the plate member etc. Resources can be reused.

Moreover, the present invention is an optical fiber connecting portion reinforcing device, wherein the first plate member and the second plate member are connected to each other so as to be freely opened and closed.
According to this configuration, since both plate members are connected so as to be openable and closable, both plate members necessary for sandwiching the optical fiber connecting portion are not separated, so that the management of the plate members is facilitated.

Further, the present invention is an optical fiber connecting portion reinforcing device, wherein the first electrode plate is fixed to both sides of a position where the optical fiber connecting portion is sandwiched on one surface of the first plate member. The second electrode plate is fixed to a position opposite to the first electrode plate fixed to both sides of the position of sandwiching the optical fiber connecting portion on one surface of the second plate member. It is characterized by that.
According to this configuration, the electrode plates are provided on both sides of the position where the optical fiber connecting portion is sandwiched between the two opposing surfaces of the two plate members, and the opposing electrode plates are bonded to each other by the electrically peelable adhesive. The fiber connection portion can be reliably reinforced.

Further, the present invention is a reinforcing device for an optical fiber connection portion, wherein the first electrode plate is centered on a position of sandwiching the connection portion of the optical fiber in one surface of the first plate member. The first electrode plate fixed to the side opposite to the connected portion, and the second electrode plate fixed to the side opposite to the connected portion of one surface of the second plate member. It is fixed to the position which opposes.
According to this configuration, on the two opposing surfaces of the two plate members, the electrode plate is provided on the opposite side of the connecting portion of the two plate members, with the position where the optical fiber connecting portion is sandwiched as the center, and the opposing electrode plates Since they are bonded to each other with an electrically peelable adhesive, the optical fiber connecting portion can be easily reinforced.

The present invention is also a method for removing a reinforcing device for an optical fiber connecting portion, wherein the step of applying a predetermined voltage between the first electrode plate and the second electrode plate and the polarity of the positive and negative are reversed. Applying a predetermined voltage again between the first electrode plate and the second electrode plate.
According to this method, since a predetermined voltage is applied between the two electrode plates, the positive electrode plate is peeled off from the adhesive, and the polarity is reversed and a predetermined voltage is applied between the two electrode plates. The electrode plate that has newly become a positive electrode and the adhesive peel off. According to this, since the electrode plate and the adhesive can be peeled off by a simple operation of applying a predetermined voltage, work efficiency such as connection change of the optical fiber can be improved and resources such as members can be reused. It becomes possible.

  In addition, the problems disclosed in the present application and the solutions thereof will be clarified by the column of the best mode for carrying out the invention and the drawings.

  According to the present invention, it is possible to improve work efficiency and reuse resources in changing the connection of optical fibers.

  Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings. An apparatus for reinforcing an optical fiber connection portion according to an embodiment of the present invention provides electrodes on both sides of an electrically peelable adhesive when the connection portion is reinforced by sandwiching the optical fiber connection portion using a pair of members. By adhering the members in a state in which a member is provided, a voltage is applied between both electrodes when a connection change or the like occurs, whereby the members once adhered can be easily removed. According to this, work such as connection change of the optical fiber can be proceeded efficiently, and it can be reused without damaging resources such as members.

≪Structure of reinforcement device≫
FIG. 1A is a perspective view of a reinforcing device 10 for reinforcing a fusion splicing portion (optical fiber connecting portion) U of an optical fiber core wire 20 described as an embodiment of the present invention. The reinforcing device 10 includes a first rectangular member (first plate member) 11 and a second rectangular member (second plate member) 12. The first and second rectangular members 11 and 12 are both made of resin. Examples of the resin include ABS (Acrylonitrile Butadiene Styrene) resin, nylon resin, PBT (PolyButylene Terephthalate) resin, PPS (PolyPhenylene Sulfide) resin, and the like. A material other than resin can be used as the material of the first and second rectangular members 11 and 12.

  The long sides 11a and 12a of the first and second rectangular members 11 and 12 are connected to each other by a flexible connecting portion 13 formed of a thin resin. For example, the connecting portion 13 is formed integrally with the first and second rectangular members 11 and 12 at the time of molding. By forming the connecting portion 13 integrally with the first and second rectangular members 11 and 12 at the time of molding, the reinforcing device 10 can be efficiently produced. The first and second rectangular members 11 and 12 can be opened and closed with the connecting portion 13 as a fulcrum.

  FIG. 1B and FIG. 1C are side views of the reinforcing device 10 as viewed from the + X direction of FIG. FIG. 1B shows a state in which the first and second rectangular members 11 and 12 are opened. FIG. 1C shows a state in which the first and second rectangular members 11 and 12 are closed. In addition, it can replace with thin resin and can comprise the connection part 13 with a hinge (it is also called a hinge). Further, the first and second rectangular members 11 and 12 may be independent without providing the connecting portion 13.

  The fusion splicing portion U of the optical fiber core wire 20 to be reinforced is sandwiched between the first rectangular member 11 and the second rectangular member 12.

  FIG. 2 is a cross-sectional view of the optical fiber core 20 showing the structure of the optical fiber core 20 used in the present embodiment. The optical fiber core 20 has a structure in which an optical fiber strand 23 in which an optical fiber 21 made of quartz or the like is covered with a UV (Ultra Violet) plastic 22 is covered with a covering material 24 such as nylon.

  As shown in FIG.1 (c), the urethane 14, the electrode plate 15, and the adhesive agent 16 are adhere | attached on each surface which the 1st and 2nd rectangular members 11 and 12 with which the optical fiber core wire 20 is pinched | interposed. ing. Specifically, urethane 141 is bonded to the surface of the first rectangular member 11, and electrode plates (first electrode plates) 151 and 153 are bonded to both sides thereof. A conductive plate 171 is provided between the electrode plates 151 and 153, and an electrode 181 protrudes from the end of the conductive plate 171. The first liquid 161 is applied to the electrode plate 151, and the first liquid 163 is applied to the electrode plate 153. On the other hand, urethane 142 is bonded to the surface of the second rectangular member 12, and electrode plates (second electrode plates) 152 and 154 are bonded to both sides thereof. A conductive plate 172 is provided between the electrode plates 152 and 154, and an electrode 182 projects from the end of the conductive plate 172. Then, the second liquid 162 is applied to the electrode plate 152, and the second liquid 164 is applied to the electrode plate 154.

  The adhesive 16 is composed of two liquids (first liquid 161 and 163 and second liquid 162 and 164) that are not hardened as a single substance. Mixed type adhesive. Further, the adhesive 16 has a current peeling property (a property that peels off when a voltage is applied). For example, the current-releasable adhesive “Electrelease (trademark)” is characterized by the fact that when a current of 5 to 50 V is applied for a short time (10 seconds to several minutes), it is electrochemical at the interface between the adherend and the adhesive. Reaction occurs, and the adhesive strength on the positive electrode side decreases. Furthermore, when the polarity is changed and the current is turned on twice, the adhesive surface can be peeled cleanly. In addition, it exhibits high adhesion to conductive materials mainly composed of metals. Another example of adhesive 16 is an electrically controlled delamination adhesive in the packaging and distribution industry (reference: http://www.storaenso.com/CDAvgn/showDocument/0,,4392,00.pdf). .

  In the present embodiment, the first liquids 161 and 163 are applied to the surfaces of the electrode plates 151 and 153 on the first rectangular member 11 side, and the second liquid 162 and the electrode plates 152 and 154 on the second rectangular member 12 side are provided. 164 is applied respectively. The amount of the adhesive 16 applied to the surface of the electrode plate 15 of each of the first and second rectangular members 11 and 12 is the same as that of the optical fiber core when the fusion splicing portion U of the optical fiber core wire 20 is sandwiched. The line 20 is fixed between the urethanes 141 and 142, and is adjusted so as not to protrude from the periphery of the electrode plate 15 of the first and second rectangular members 11 and 12. According to this configuration, the electrode plates 15 are provided on both sides of the urethane 14 (141, 142) for fixing the fusion splicing portion U on the two opposing surfaces of the rectangular members 11, 12, and two sets of electrode plates 15 are provided. Since they are bonded to each other by the electrically peelable adhesive 16, the fusion splicing portion U can be reliably reinforced.

  In addition, about each of the 1st and 2nd rectangular members 11 and 12, one electrode plate 15 is provided in the edge part far from the connection part 13 instead of the edge part of both sides, and the two electrode plates which face each other 15 may be bonded with an adhesive 16. According to this configuration, the electrode plate 15 is provided on one side of the urethane 14 that fixes the fusion splicing portion U on the two opposing surfaces of both the rectangular members 11 and 12, and the pair of electrode plates 15 are electrically separated. Therefore, the fusion splicing portion U can be easily reinforced.

≪Reinforcement device adhesion method≫
Next, a method of bonding the reinforcing device 10 described above will be described. The reinforcing device 10 is used after connecting predetermined portions of the optical fiber core wire 20 by fusion splicing. In the first step, the fusion splicing portion U of the optical fiber core wire 20 is positioned at a predetermined position of the second rectangular member 12. In this positioning, the fusion splicing portion U is exactly the length of the second rectangular member 12 so that the optical fiber core wire 20 is parallel along the longitudinal direction of the first rectangular member 11 and the second rectangular member 12. It is performed so as to be located at an intermediate position in the direction.

  In the next step, the first and second rectangular members 11 and 12 are joined by bending the connecting portion 13 as a fulcrum so as to sandwich the optical fiber core wire 20. At this time, the first liquid 161 and the second liquid 162, and the first liquid 163 and the second liquid 164 applied to the electrode plates 15 of the first rectangular member 11 and the second rectangular member 12, respectively. The adhesive 16 is cured by contact. Until the adhesive 16 is completely cured, the first and second rectangular members 11 and 12 are held by hand, or are fixed using a fixing tool such as a clip. When the adhesive 16 is cured, the urethane 14 of the first and second rectangular members 11 and 12 is fixed in a state where the optical fiber core wire 20 is sandwiched.

  In addition, by using a two-component reaction type (mixed type) adhesive as described above, the electrode plate 15 (151, 152, 153, 154) of the reinforcing device 10 is preliminarily attached to the electrode plate 15 without worrying about natural curing. It is also possible to apply the first liquid 161, 163 and the second liquid 162, 164 in advance. For this reason, since the electrode plate 15 of the reinforcing device 10 can be brought into the site in a state where the adhesive 16 has been applied in advance, the work at the site is simplified and the work can be speeded up. In addition, the reinforcement work can be completed in a shorter period of time by using an adhesive 16 having a high curing speed.

  The adhesive 16 is not limited to a two-component reactive adhesive, and may be a one-component reactive adhesive.

≪Removal method of reinforcement device≫
Next, a method for removing the reinforcing device 10 once bonded will be described. In the first step, the rectangular member 11 is removed from the adhesive 16. Specifically, a low voltage of 5 to 50 V is applied between the electrodes 181 and 182 using a predetermined voltage source. In that case, the electrode 181 is connected to the positive electrode of the voltage source, and the electrode 182 is connected to the negative electrode of the voltage source. By doing so, a low voltage of 5 to 50 V is applied between the conductive plates 171 and 172, between the electrode plates 151 and 152, and between the electrode plates 153 and 154, respectively. As a result, the strength between the electrode plate 151 and the adhesive 161 and the strength between the electrode plate 153 and the adhesive 163 are reduced, and the adhesives 161 and 163 are peeled off from the surfaces of the electrode plates 151 and 153, respectively. .

  In the next step, the rectangular member 12 is removed from the adhesive 16. Specifically, after the rectangular members 11 and 12 are closed again, a low voltage of 5 to 50 V is applied between the electrodes 181 and 182 using a predetermined voltage source. In that case, the electrode 181 is connected to the negative electrode of the voltage source, and the electrode 182 is connected to the positive electrode of the voltage source. By doing so, a low voltage of 5 to 50 V is applied between the conductive plates 171 and 172, between the electrode plates 151 and 152, and between the electrode plates 153 and 154, respectively. As a result, the strength between the electrode plate 152 and the adhesive 162 and the strength between the electrode plate 154 and the adhesive 164 are reduced, and the adhesives 162 and 164 are peeled off from the surfaces of the electrode plates 152 and 154, respectively. .

  According to the embodiment of the present invention described above, when the fusion splicing portion U is fixed by the urethane 14 fixed to the first rectangular member 11 and the second rectangular member 12, both the rectangular members 11, 12 are used. Since the electrode plate 15 fixed to the substrate is bonded by the electrically-peelable adhesive 16, a voltage is applied between the two electrodes 181 and 182 when both the rectangular members 11 and 12 are to be removed for connection change or the like. As a result, the adhesive 16 can be peeled off from the electrode plate 15. According to this, since both the rectangular members 11 and 12 once bonded to fix the fusion splicing portion U can be easily removed without damaging them, work efficiency such as optical fiber connection change and the like can be improved. Resources such as materials can be reused.

  Further, according to the method of removing the reinforcing device, a voltage is applied between the two electrodes 181 and 182, so that the electrode plate 15 connected to the positive electrode through the conductive plate 17 and the adhesive 16 are peeled, and the polarity is reversed. Since the voltage is applied between the two electrodes 181 and 182, the electrode plate 15 newly connected to the positive electrode through the conductive plate 17 and the adhesive 16 are peeled off. According to this, since the electrode plate 15 and the adhesive 16 can be peeled off by a simple operation of applying a voltage, work efficiency such as optical fiber connection change and reuse of resources such as members Is possible.

  Although the best mode for carrying out the present invention has been described above, the above embodiment is intended to facilitate understanding of the present invention and is not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and equivalents thereof are also included in the present invention.

(A) is a perspective view of the reinforcement apparatus 10 for reinforcing the fusion splicing part U of the optical fiber core wire 20 described as one embodiment of the present invention, and (b) shows the reinforcement apparatus 10 in (a). It is a side view which shows the state which opened the 1st and 2nd rectangular members 11 and 12 seen from the + X direction of (a), (c) is the 1st and 2nd which looked at the reinforcement apparatus 10 from the + X direction of (a). It is a side view which shows the state which closed the rectangular members 11 and 12 of this. It is sectional drawing of the optical fiber core wire 20 explaining the structure of the optical fiber core wire 20 demonstrated as one Embodiment of this invention.

Explanation of symbols

10 Reinforcing Device 11 First Rectangular Member (First Plate Member)
12 Second rectangular member (second plate member)
13 Connecting part 14, 141, 142 Urethane 15 Electrode plate 151, 153 Electrode plate (first electrode plate)
152, 154 Electrode plate (second electrode plate)
DESCRIPTION OF SYMBOLS 16 Adhesive 161,163 Adhesive, 1st liquid 162,164 Adhesive, 2nd liquid 17,171,172 Conductive plate 18,181,182 Electrode 20 Optical fiber core wire 21 Optical fiber 22 UV (Ultra Violet) plastic 23 Optical fiber 24 Coating material U Fusion splicing part (optical fiber connecting part)

Claims (5)

A first plate member having one surface for sandwiching a connecting portion of the optical fiber;
A second plate member having one surface facing the one surface of the first plate member to sandwich the connecting portion of the optical fiber;
A first electrode plate fixed to one surface of the first plate member;
Of the one surface of the second plate member, a second electrode plate fixed to a position facing the first electrode plate when sandwiching the connection portion of the optical fiber,
The first electrode plate and the second electrode plate are bonded together, and a predetermined voltage is applied between the first electrode plate and the second electrode plate, and the first electrode plate and the second electrode plate are peeled off. An electrically peelable adhesive;
An apparatus for reinforcing an optical fiber connecting portion. It is the reinforcement apparatus of the optical fiber connection part of Claim 1, Comprising:
The said 1st board member and the said 2nd board member are connected so that opening and closing is possible. The reinforcement apparatus of the optical fiber connection part characterized by the above-mentioned. It is the reinforcement apparatus of the optical fiber connection part of Claim 1 or Claim 2, Comprising:
The first electrode plate is fixed to both sides of a position of sandwiching the connection portion of the optical fiber in one surface of the first plate member,
The second electrode plate is fixed to a position opposite to the first electrode plate fixed to both sides of a position of sandwiching the optical fiber connecting portion on one surface of the second plate member. An apparatus for reinforcing an optical fiber connecting portion. It is the reinforcement apparatus of the optical fiber connection part of Claim 2, Comprising:
The first electrode plate is fixed to the opposite side of the connected portion around the position where the optical fiber connecting portion is sandwiched, on one surface of the first plate member,
The second electrode plate is fixed to a position of the one surface of the second plate member facing the first electrode plate fixed to the side opposite to the connected portion. Reinforcing device for optical fiber connection. A method for removing a reinforcing device for an optical fiber connecting portion according to any one of claims 1 to 4,
Applying a predetermined voltage between the first electrode plate and the second electrode plate;
Reversing positive and negative polarities and reapplying a predetermined voltage between the first electrode plate and the second electrode plate;
A method for removing a reinforcing device for an optical fiber connecting portion.

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