JP5331979B2 - Removal tool and adapter removal method using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a removal tool, which facilitates the work of removing an adaptor and enables the user to perform it in a short time, and a method of removing the adaptor using this. <P>SOLUTION: The removal tool 11 is used to remove the adaptor 51, which is locked to a plugboard 53 by a plat spring 59 being closed by a mounting hole 61 at insertion into the mounting hole 61 of the plugboard 53 and the flat spring 59 opening after passage through the mounting hole 61. It has an adaptor pressing member 30, which is supported capably of backward and forward movement and abuts on the rear end in a direction of removing the adaptor 51, and a flat spring pressing member 35, which lies ahead of the adaptor pressing member 30 and closes the flat spring 59 when the adaptor pressing member 30 abuts on the adaptor 51 and shifts rearward. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a removal tool and an adapter removal method using the removal tool.

  The optical wiring board is provided with a connector connection board in which a large number of optical connector adapters are arranged. And in the connection change of the optical fiber cord, the optical connector plug of the optical fiber cord connected to the optical connector adapter at an arbitrary position of the connector connection board is extracted, and the connection is changed to another optical connector adapter (for example, Patent Document 1).

JP 2001-57683 A

  Incidentally, some adapters such as the optical connector adapter are locked to a wiring board by a leaf spring. When the adapter is inserted into the mounting hole of the wiring board, the leaf spring provided in the adapter is closed by the mounting hole and opened after passing through the mounting hole. In this way, the adapter is locked to the wiring board. With this configuration, the adapter can be easily attached to the wiring board.

  However, when removing this adapter from the wiring board, it is necessary to remove the adapter from the mounting hole while closing the leaf spring. Conventionally, this has been performed manually, which is very troublesome. In particular, when a large number of adapters are arranged in close proximity, it is necessary to perform work while considering interference with other adapters and cables connected to other adapters, and workability is poor. Work time has become longer. Further, in order to prevent the adapter from falling off, a two-person operation has been forced by a person holding the adapter while closing the leaf spring from the front side of the wiring board and a person pulling out the adapter from the rear side of the wiring board. If an adapter falls off and contacts an in-use optical fiber that is connected to another adapter, it can affect communication.

  An object of the present invention is to provide a removal tool that makes it easy to remove an adapter and allows the work to be performed in a short time, and a method for removing an adapter using the removal tool.

The removal tool according to the present invention that can solve the above-described problem is that the leaf spring is closed by the attachment hole when the plate body is inserted into the attachment hole, and the plate spring is opened after passing through the attachment hole. A tool for removing an adapter locked to the body,
An adapter pushing member supported so as to be movable back and forth in contact with the rear end of the adapter in the removing direction;
A plate spring pressing member is provided in front of the adapter pressing member and closes the plate spring when the adapter pressing member abuts against the adapter and moves rearward.

  In the removal tool according to the present invention, it is preferable that the adapter pushing member is urged forward by an urging spring and positioned at an initial use position.

  In the removal tool according to the present invention, it is preferable that a notch for escaping from an adjacent adapter with respect to the adapter to be removed is formed.

  In the removal tool according to the present invention, it is preferable that a tapered portion that escapes from a cable connected to an adjacent adapter with respect to the adapter to be removed is formed.

The adapter removal method of the present invention is a method of removing the adapter from the plate using the removal tool of the present invention,
After the removal tool is moved forward with respect to the adapter in the removal direction, the adapter pushing member is brought into contact with the rear end portion of the adapter and moved backward,
The leaf spring is closed by the leaf spring pressing member, and the adapter is pushed forward by the adapter pushing member to advance.

  In the detaching method according to the present invention, it is preferable that the adapter is pushed forward by the adapter pushing member to advance, thereby opening the leaf spring in the mounting hole and holding the adapter on the plate body.

  According to the removal tool of the present invention and the adapter removal method using the removal tool, the adapter pushing member is brought into contact with the rear end portion of the adapter and moved backward by advancing the removal tool relative to the adapter in the removal direction. Then, the leaf spring is closed by the leaf spring pressing member, and the adapter is pushed forward by the adapter pushing member to advance. For this reason, the removal work of the adapter is facilitated and can be performed in a short time. In addition, even if a large number of adapters are arranged in close proximity, the target adapter can be removed without interfering with other adapters and cables connected to other adapters. Damage to cables connected to the adapter can be prevented. Therefore, work reliability can be improved.

  Hereinafter, an example of an embodiment of a removal tool and an adapter removal method using the removal tool according to the present invention will be described with reference to the drawings.

  FIG. 1 shows an embodiment of a removal tool according to the present invention, in which (a) is a transparent side view, (b) is a transparent plan view, and (c) is a transparent front view. 2A and 2B show a state in which an adapter to be removed by a removal tool according to the present invention is attached to a wiring board, wherein FIG. 2A is a plan view and FIG. 2B is a side view. FIG. 3 is a plan sectional view showing a method of removing the adapter using the removal tool according to the present invention.

  As shown in FIG. 1, the removal tool 11 of the present embodiment is provided with a synthetic resin grip 12 that is gripped by an operator's hand when used at the rear end thereof. Moreover, the removal tool 11 has a metal bar member 13 that is embedded and fixed to the grip 12 and extends forward from the grip 12. A male screw 14 is formed on the front end side of the bar member 13.

  Further, the removal tool 11 has a base body 17 made of aluminum alloy that is fixed to the rod member 13 by being screwed to the male screw 14 of the rod member 13. The base body 17 is perpendicular to the base plate portion 18 so as to be parallel to each other from the base plate portion 18 extending forward from the bar member 13 and the edge portions on both sides in the width direction of the base plate portion 18. It has a pair of substantially rectangular extending plate portions 19 that extend. That is, the base body 17 has a U-shape when viewed from the front.

  A pair of guide pins 21 are fitted and fixed to the pair of extending plate portions 19 at intervals. These guide pins 21 protrude forward from the extending plate portion 19 in parallel with the bar member 13.

  In addition, a pair of insertion holes 23 opened forward are formed between the guide pins 21 in the extension plate portions 19 on both sides. Coil springs (biasing springs) 24 are respectively inserted into the insertion holes 23, and these coil springs 24 also protrude forward from the extension plate portion 19.

  Further, each of the extending plate portions 19 on both sides is formed with a stepped hole 26 having a large diameter on the side of the bar member 13 and a small diameter on the side opposite to the bar member 13 at a central position between the insertion holes 23 on both sides. Yes. A stepped guide rod 27 having a large diameter on the side of the bar member 13 and a small diameter on the side opposite to the bar member 13 is slidably inserted into the stepped hole 26. These guide rods 27 also project forward from the extension plate portion 19.

  An adapter pushing member 30 made of an aluminum alloy is provided on the front side of the extension plate portions 19 on both sides. These adapter pushing members 30 are respectively fixed to the guide rods 27, and the guide pins 21 are slidably fitted in the guide holes 31 on both ends. As a result, the adapter pushing members 30 can be moved back and forth with respect to the base body 17 by the guide rods 27 being guided by the stepped holes 26 and the guide holes 31 at both ends being guided by the guide pins 21. It is supported by. Further, each of the adapter pushing members 30 is biased forward by the coil spring 24 in a direction away from the base main body 17 and is brought into contact with the leaf spring holding member 35 and positioned at the initial use position.

A plate spring pressing member 35 made of aluminum alloy is fixed to the front side of the base body 17 with bolts 36 so as to be positioned in front of the adapter pressing member 30. The plate spring pressing member 35 is fixed to the front surface of the base plate portion 18 with bolts 36 and extends forward, and the adapter pressing member 30 from the edge portions on both sides in the width direction of the fixing plate portion 37. And a pair of substantially rectangular holding plate portions 38 extending perpendicularly to the base plate portion 18 so as to be positioned in front of the base plate portion 18. That is, the leaf spring pressing member 35 is also U-shaped when viewed from the front. Guide plates 40 are formed on the pressing plate portions 38 on the sides of the front end portions that are close to each other.
The adapter pressing members 30 on both sides protrude in directions closer to each other than the pressing plate portion 38.

  A notch 41 is formed in the intermediate portion of the fixed plate portion 37 in the width direction by moving backward from the presser plate portion 38, and the front end of the intermediate portion is opposite to the presser plate portion 38. In addition, a tapered portion 39 that is inclined in a direction away from the pressing plate portion 38 toward the rear side is formed.

Next, the adapter 51 that is removed by the removal tool 11 will be described.
As shown in FIG. 2, the adapter 51 is an adapter to which an optical connector 54 attached to an optical fiber core wire (cable) 52 is connected, and is used by being attached to a plate-like wiring board (plate body) 53. Is. The optical fiber core wire 52 may be in the form of an optical fiber or an optical fiber cord. The adapter 51 has a substantially rectangular parallelepiped shape with a flange portion 55 formed at the center, and a main body portion 56 is formed on both sides of the flange portion 55. A plurality of optical connectors 54, specifically, four optical fiber cores 52 can be connected in parallel to the main body portions 56 formed on both sides of the flange portion 55. Therefore, the main body 56 has a shape that is long in the arrangement direction of the optical fiber core wires 52.

  A pair of spring members 58 are attached to both sides in the length direction of the main body 56 on one side of the adapter 51. The spring member 58 is held by the main body 56 by sandwiching the main body 56 from both sides in the width direction. These spring members 58 are formed by cutting and raising plate springs 59 on both sides in the width direction of the respective main body portions 56. The leaf spring 59 is cut and raised so that the opposite end to the flange portion 55 is the base end and the flange portion 55 side is the leading end, and the flange portion 55 side is inclined so that the distance from the main body portion 56 increases. doing. Since the leaf spring 59 is elastically deformable, the leaf spring 59 can be opened and closed between an open state where the distance from the main body 56 is large and a closed state where the distance from the main body 56 is small. Further, the distance between the leaf spring 59 and the flange portion 55 is set to a dimension slightly larger than the thickness dimension of the wiring board 53.

  The wiring board 53 is formed with a rectangular mounting hole 61 into which the main body 56 on one side of the adapter 51 is inserted. The mounting hole 61 is a rectangular hole having a length and width equivalent to the length and width of the main body portion 56, and is formed such that the length direction thereof coincides with, for example, the vertical direction. A plurality of mounting holes 61 are formed in the wiring board 53 at equal intervals in the width direction by aligning the positions in the length direction, and also at equal intervals in the length direction by aligning the positions in the width direction. A plurality are formed. As a result, a plurality of adapters 51 are attached to the wiring board 53 at equal intervals in the width direction with their positions in the length direction aligned.

  When the adapter 51 is attached to the wiring board 53, the main body part 56 with the spring member 58 attached is first, and the main body part 56 is inserted into the attachment hole 61 to be attached to the wiring board 53. Then, the leaf spring 59 is inserted into the mounting hole 61 first from the base end side, and is pressed by the mounting hole 61 to be elastically deformed in the closing direction and contracted to fit the width of the mounting hole 61. The part 56 is approached. After the leaf spring 59 is closed by the mounting hole 61 in this way, when it passes through the mounting hole 61, it opens with an elastic restoring force. As a result, the wiring board 53 is held between the leaf spring 59 and the flange portion 55, and the adapter 51 is locked to the wiring board 53.

  Next, the removal method which removes the adapter 51 from the wiring board 53 using said removal tool 11 is demonstrated.

  The operator grasps the grip 12 of the removal tool 11 and aligns the position of the leaf spring pressing member 35 with the adapter 51 to be removed as shown in FIG. That is, the position of the removal tool 11 is determined so that the adapter 51 to be removed is positioned between the both pressing plate portions 38 of the leaf spring pressing member 35. From this state, when the operator advances the removal tool 11 in the removal direction (direction toward the adapter 51), the removal tool 11 enters the adapter 51 to be removed between the holding plate portions 38 of the leaf spring holding member 35. I will let you. At this time, the adapter 51 is guided between the pressing plate portions 38 by the guide surface 40 formed at the front end portion of the pressing plate portion 38. Since the optical connector 54 can be passed between the holding plate portions 38, between the adapter pressing members 30 and between the extending plate portions 19, the work can be performed even when the optical fiber core wire 52 is connected.

  When the operator further advances the removal tool 11 in the removal direction, the adapter pushing member 30 comes into contact with the rear end portion of the adapter 51 as shown in FIG. When the operator further advances the removal tool 11, the leaf spring pressing member 35 and the base body 17 move forward while the adapter pressing member 30 is stopped at the rear end of the adapter 51. As a result, the adapter pressing member 30 moves rearward with respect to the leaf spring pressing member 35 and the base body 17 and contracts the coil spring 24.

  Further, when the operator advances the removal tool 11 in the removal direction, as shown in FIG. 3C, the holding plate portion 38 of the plate spring holding member 35 rides on the plate spring 59 of the adapter 51 and pushes the plate spring 59. It will be elastically deformed and closed. Then, when the leaf spring 59 is closed to a position where it can pass through the mounting hole 61, the adapter 51 is released from the locking by the wiring board 53, whereby the contracted coil spring 24 returns to the initial position. Accordingly, the adapter pushing member 30 is pushed forward, and the adapter pushing member 30 pushes the adapter 51 forward to advance the wiring board 53. Then, as shown in FIG. 3D, the tip of the leaf spring 59 is positioned in front of the mounting hole 61. As a result, the adapter 51 is maintained in a state in which the lock to the wiring board 53 is released, and the adapter 51 can be pulled out in the removal direction. Therefore, the operator can remove the adapter 51 from the wiring board 53 by grasping and pulling out the adapter 51. Further, even if the removal tool 11 is retracted and removed from the adapter 51 in the state of FIG. 3D, the leaf spring 59 is opened in the attachment hole 61 and is held in the attachment hole 61 as shown in FIG. The adapter 51 can also be held on the wiring board 53 in a state where it can be easily removed from the back side of the wiring board 53.

  The width of the holding plate portion 38 of the leaf spring holding member 35 and the extending plate portion 19 of the base main body 17 are dimensions that can move without interfering with the adapter 51 adjacent to the side of the adapter 51 to be removed during the removing operation. Is set to Moreover, since the notch 41 is formed in the intermediate part of the width direction of the fixed plate part 37 of the leaf | plate spring pressing member 35 so that it may escape from an adjacent adapter, the adapter 51 adjacent to the adapter 51 of the removal object vertically. It is possible to remove the adapter 51 to be removed without interfering with. Furthermore, since the taper portion 39 is formed at the front end of the intermediate portion in the width direction of the fixed plate portion 37 so as to escape from the cable connected to the adjacent adapter, when removing the adapter 51 to be removed, It is possible to avoid the optical fiber core wire 52 drawn from the adapter 51 adjacent to the interference with the removal tool 11.

  As described above, according to the removal tool 11 and the removal method of the adapter 51 using the same according to the above embodiment, the adapter pushing member 30 is moved forward by moving the removal tool 11 in the removal direction with respect to the adapter 51. After making it contact | abut to the rear-end part of the adapter 51 and making it move back, the leaf | plate spring 59 is closed by the both pressing board parts 38 of the leaf | plate spring pressing member 35, and also the adapter 51 is pushed forward by the adapter pushing member 30, and it advances. It will be. For this reason, the removal work of the adapter 51 becomes easy and can be performed in a short time. Even when a large number of adapters 51 are arranged close to each other, the operator only has to hold the grip 12 and push the removal tool 11 forward. There is no need to reach out. That is, the adapter 51 to be removed can be removed without interfering with the other adapter 51 and the optical fiber core wire 52 drawn from the other adapter 51, and the optical fiber core wire 52 drawn from the other adapter 51 can be removed. Can be prevented. Further, as shown in FIG. 3E, the adapter 11 is held on the wiring board 53 in a state where it can be easily removed from the back surface side of the wiring board 53, and then the adapter 11 is pulled out from the back surface side of the wiring board 53. It becomes possible to carry out the work alone. Furthermore, it is possible to prevent a situation in which the adapter falls off and comes into contact with the optical fiber in use and affects communication. Therefore, work reliability can be improved.

  Further, since the adapter pushing member 30 is urged forward by the coil spring 24 and positioned at the initial use position, the connector 51 with the leaf spring 59 closed is moved in the removal direction by the urging force of the coil spring 24. Can do. The adapter pressing member 30 may not be configured to be biased forward by the coil spring 24, and may be configured to displace the adapter pressing member 30 forward by a lever or the like, for example.

  Further, the leaf spring pressing member 35 is formed with a notch 41 that escapes from the adapter 51 that is vertically adjacent to the adapter 51 that is to be removed, so that the adapter 51 that is to be removed can be removed without interfering with the adjacent adapter 51. It can be removed smoothly and workability can be improved.

  Further, the leaf spring holding member 35 is formed with a tapered portion 39 that escapes from the optical fiber core wire 52 connected to the adapter 51 that is vertically adjacent to the adapter 51 to be removed. Even if the optical fiber core wire 52 is in contact with the optical fiber core wire 52, the optical fiber core wire 52 can be gradually released, and the optical fiber core wire 52 can be prevented from being bent with a bending diameter smaller than the allowable bending diameter. Therefore, the work reliability can be further improved.

  In addition, the adapter 51 can be guided between the pressing plate portions 38 by the guide surface 40 formed at the front end portion of the pressing plate portion 38, and the adapter 51 can smoothly enter between the pressing plate portions 38. it can.

  In addition, in the said embodiment, although the case where the adapter 51 which can connect the four optical fiber core wires 52 to one side was illustrated and demonstrated, it is applicable also when removing another adapter. For example, when removing an adapter capable of connecting two optical fiber cores 52 on one side, each of the pressing plate portion 38 of the leaf spring pressing member 35, the adapter pressing member 30, and the extending plate portion 19 of the base body 17. A removal tool having a shorter length may be used. Further, the present invention can also be applied to an adapter to which a cable other than the optical fiber core wire 52 can be connected.

It is a figure which shows the removal tool which concerns on this embodiment, (a) is a permeation | transmission side view, (b) is a permeation | transmission top view, (c) is a permeation | transmission front view. It is a figure which shows the state which attached to the wiring board the adapter removed by a removal tool, (a) is a top view, (b) is a side view. It is a plane sectional view which shows the removal method of the adapter using a removal tool.

Explanation of symbols

11: Removal tool, 24: Coil spring (biasing spring), 30: Adapter pushing member, 35: Plate spring pressing member, 39: Tapered portion, 41: Notch, 51: Adapter, 52: Optical fiber core wire (cable) 53: Wiring board (plate), 59: Leaf spring, 61: Mounting hole

Claims (5)

A plate spring is closed by the mounting hole at the time of insertion into the mounting hole of the plate body, and is a tool for removing the adapter locked to the plate body by opening the plate spring after passing through the mounting hole,
An adapter pushing member supported so as to be movable back and forth in contact with the rear end of the adapter in the removing direction;
The have a said plate closing spring leaf spring holding member and the adapter push the adapter push member be in front than member moves rearward in contact with said adapter,
The removal tool characterized by the notch part which escapes from an adjacent adapter with respect to the adapter of removal object being formed . The removal tool according to claim 1,
The adapter pushing member is urged forward by an urging spring and is positioned at an initial use position. The removal tool according to claim 1 or 2,
The removal tool characterized by the taper part which escapes from the cable connected to the adapter adjacent to the adapter of removal object being formed . A method for removing the adapter from the plate using the removal tool according to any one of claims 1 to 3 ,
After the removal tool is moved forward with respect to the adapter in the removal direction, the adapter pushing member is brought into contact with the rear end portion of the adapter and moved backward,
A method of removing an adapter, wherein the leaf spring is closed by the leaf spring pressing member, and further the adapter is pushed forward by the adapter pushing member to advance . A method for removing an adapter according to claim 4 ,
A method for removing an adapter, wherein the adapter is pushed forward by the adapter pushing member to advance, thereby opening the leaf spring in the mounting hole and holding the adapter in the plate body .

Images