JP2019219441A - Cap attaching/detaching tool - Google Patents

Abstract

To provide a cap attaching/detaching tool that, when a cap attached to a connection port connecting an optical connector is attached/detached, can restrain the cap from being dropped.SOLUTION: A cap attaching/detaching tool of a cap, which is a cap 1 attached to a connection port connecting an optical connector, having a cap head part 2 provided with a flange 3 and a hole part 4 formed in the cap head part comprises a cap holding part 11 that is provided with a housing part 13 to have the cap head part housed therein and an insertion part 14 to be inserted into the hole part.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a cap attaching / detaching tool.

  2. Description of the Related Art As an optical wiring unit constituting an optical connection box, an optical wiring box, or the like, a type in which a plurality of optical fiber housing trays are inserted into a housing and housed is known. Each of the optical fiber storage trays housed in the housing has an optical connector plug (hereinafter sometimes simply referred to as an “optical plug”) attached to and detached from the connection port from the near side (operator side). A plurality of possible optical adapters are provided. Regarding an optical adapter provided in such an optical wiring unit, for example, Patent Document 1 discloses a dustproof cap for protecting a connection port when an optical plug is not inserted.

JP 2010-145974 A

  By arranging optical fiber storage trays with a plurality of optical adapters in a multi-stage manner in the housing, connection ports for a plurality of optical plugs are densely arranged on the front side (operator side) of the optical wiring unit. Sometimes. An operator grasps each cap by hand with respect to the connection ports arranged at high density in this manner, and attaches / detaches the cap. For this reason, the cap may be dropped at the time of attachment and detachment.

  An object of the present invention is to provide a cap attaching / detaching tool capable of suppressing dropping of a cap when attaching / detaching a cap attached to a connection port for connecting an optical connector.

  Some embodiments of the present invention are caps attached to a connection port for connecting an optical connector, the cap comprising a cap head provided with a flange, and a hole formed in the cap head. A cap attaching / detaching tool for a cap, comprising: a cap holding portion provided with an accommodating portion for accommodating the cap head and an insertion portion inserted into the hole. .

  Other features of the present invention will be apparent from the description in the specification and the drawings described below.

  According to some embodiments of the present invention, when a cap attached to a connection port for connecting an optical connector is attached / detached, dropping of the cap can be suppressed.

FIG. 1A is a perspective view of the cap attaching / detaching tool 10 of the present embodiment in an initial state. FIG. 1B is an enlarged view of the cap holding portion 11 in FIG. 1A. FIG. 2 is a perspective view of the optical wiring unit 90. FIG. 3A is a perspective view of the cap attaching / detaching tool 10 of the present embodiment in a holding state. FIG. 3B is an enlarged view of the cap holding portion 11 in FIG. 3A. FIG. 4A is a perspective view of the cap attaching / detaching tool 10 of the present embodiment with the cap 1 in a holding state. FIG. 4B is an enlarged view of the cap holding portion 11 in FIG. 4A. 5A and 5B are cross-sectional views in which the cap holding portion 11 of the cap attaching / detaching tool 10 of the present embodiment with the cap 1 in the holding state is enlarged. FIGS. 6A to 6C are cross-sectional views of the cap attaching / detaching tool 10 of the present embodiment showing a state in which the cap 1 is held. 7A and 7B are plan views of a cap attaching / detaching tool 10 according to a modification of the present embodiment, showing a state in which the cap 1 is held.

  At least the following matters will be apparent from the description of the specification and the drawings described below.

  A cap attached to a connection port for connecting an optical connector, a cap head provided with a flange, and a cap attaching / detaching tool for the cap having a hole formed in the cap head, A tool for attaching and detaching a cap, which has a cap holding portion provided with an accommodation portion for accommodating the cap head and an insertion portion inserted into the hole, is apparent. According to such a cap attaching / detaching tool, when the cap attached to the connection port for connecting the optical connector is attached / detached, the cap can be prevented from dropping.

  It is desirable to have an operation unit that switches between a holding state in which the insertion unit is inserted into the hole and a holding release state in which the holding state is released in a state where the cap head is housed in the housing unit. This makes it possible to prevent the cap from dropping when the cap attached to the connection port for connecting the optical connector is attached or detached.

  It is preferable that the cap holding portion further includes a spring for restoring a positional relationship between the housing portion and the insertion portion. This makes it possible to easily switch from the holding state to the holding release state.

  It is preferable that an end face of the insertion portion when inserted into the hole projects beyond an end surface of the cap holding portion when the insertion portion is not inserted into the hole. Thereby, it is possible to further suppress the cap held by the cap holding portion from falling upward.

  It is preferable that the operating section has a plurality of cap holding sections, and the operation section inserts the insertion sections of the plurality of cap holding sections respectively into the holes of the plurality of caps. Thereby, when attaching and detaching the plurality of caps attached to the connection port for connecting the optical connector, the caps can be prevented from dropping.

=== This embodiment ===
<Overview of Cap Removal Tool 10>
FIG. 1A is a perspective view of the cap attaching / detaching tool 10 of the present embodiment in an initial state. FIG. 1B is an enlarged view of the cap holding portion 11 in FIG. 1A.

  In the following description, each direction is defined as shown in the figure. That is, the direction in which the insertion portion 14 of the cap holding portion 11 protrudes (see FIGS. 3A and 3B) is referred to as “front-back direction”, the side of the cap holding portion 11 as viewed from the operation unit 12 is referred to as “front”, and The side is called “rear”. The direction in which the cap head 2 is inserted into the housing 13 (see FIGS. 6A and 6B) is referred to as “vertical direction”, the side of the insertion opening 15 in the housing 13 is referred to as “up”, and the opposite side is referred to as “down”. I do. Also, a direction orthogonal to the “front-back direction” and the “up-down direction” is referred to as “left-right direction”, the right side when viewed from the front is referred to as “right”, and the opposite side is referred to as “left”.

  The cap attaching / detaching tool 10 is a tool for attaching / detaching a cap attached to a connection port for connecting an optical connector. As shown in FIG. 2 described later, a cap 1 is attached to a connection port 94 of an optical adapter 93 provided in an optical fiber storage tray 92 of the optical wiring unit 90. The cap attaching / detaching tool 10 of this embodiment is a tool for attaching / detaching a cap attached to the connection port of such an optical adapter. However, the cap attaching / detaching tool 10 of the present embodiment may be a tool for attaching / detaching a cap attached to a connection port of an optical adapter provided other than the optical fiber storage tray 92 of the optical wiring unit 90. Further, the connection port to which the cap is attached is not limited to the connection port of the optical adapter 93 as shown in FIG. 2, and may be, for example, a connection port of an optical receptacle.

  The cap attaching / detaching tool 10 of the present embodiment can prevent the cap from dropping when the cap is attached to or detached from the connection port by holding the cap with the cap holding portion 11 shown in FIG. 1A. In the following description, a state in which the cap is held by the cap holding unit 11 may be referred to as a “holding state”. Further, a state in which the cap is not held by the cap holding unit 11 may be referred to as a “holding released state”. Note that the “hold release state” may be referred to as an “initial state”. FIG. 1 shows the cap attaching / detaching tool 10 of the present embodiment in a holding release state (initial state). The detailed configuration of the cap attaching / detaching tool 10 of the present embodiment will be described later.

  FIG. 2 is a perspective view of the optical wiring unit 90. In FIG. 2, in order to illustrate a comparison between a state in which the cap is attached to the connection port and a state in which the cap is not attached to the connection port, a plurality of optical adapters arranged in the optical fiber accommodation tray 92 are shown. Of the connection ports 94 of 93, the connection port 94 on the right side of the optical fiber storage tray 92 shows a state in which the cap 1 is mounted, and the connection port 94 on the left side of the optical fiber storage tray 92 is mounted with the cap 1. It is in a state where it has not been removed (removed).

  The optical wiring unit 90 branches an optical fiber cable having a plurality of cores into optical fiber cables for each single core, and connects each end of the branched single core optical fiber cable to a device outside the optical wiring unit 90. It is a device that can be terminated. The optical wiring unit 90 has a housing 91 and a plurality (three in this case) of optical fiber storage trays 92 slidably provided with respect to the housing 91. A plurality of optical adapters 93 for connecting optical fiber cables (not shown) inside and outside of the optical wiring unit 90 with a connector are arranged on the front side of the optical fiber accommodation tray 92. In the present embodiment, the optical adapter 93 is an optical adapter for connecting LC connectors to each other, but is not limited to this.

  As shown in FIG. 2, a plurality of (here, 12) optical adapters 93 are arranged in the left-right direction in the optical fiber storage tray 92 in the optical wiring unit 90 of the present embodiment. In each of the optical adapters 93, four connection ports 94 of a single-core type optical plug are arranged. Therefore, the optical fiber storage tray 92 has a total of 48 connection ports 94 in the left-right direction. However, the arrangement direction and the number of the optical adapters 93 are not limited to this. Further, the arrangement direction and the number of the connection ports 94 in the optical adapter 93 are not limited thereto.

  As shown in FIG. 2, a cap 1 is attached to a connection port 94 of the optical adapter 93. The cap 1 is a member that protects the connection port 94. The cap 1 is, for example, a dustproof cap. That is, when the cap 1 is attached to the connection port 94, dust or the like is prevented from entering the inside of the connection port 94.

  The cap 1 has a cap body 5 and a cap head 2.

  The cap body 5 is a part of the cap 1 that is attached to the connection port 94. The cap head 2 is a part of the cap 1 that is not attached to the connection port 94 and protrudes from the connection port 94 to the outside. The cap head 2 is also a part held by the cap holding part 11 of the cap attaching / detaching tool 10. The cap head 2 has a flange 3 and a hole 4. The flange 3 is a portion that protrudes outside the outer periphery of the cap body 5. The hole 4 is a hole formed from the end face of the cap 1 on the cap head 2 side toward the cap body 5. The hole 4 is also a part to be inserted into the insertion part 14 of the cap holding part 11. A hole 4 is formed in the cap 1 in order to make the cap 1 thinner and suppress distortion during molding.

  As described above, the optical fiber housing tray 92 of the optical wiring unit 90 shown in FIG. 2 has a total of 48 connection ports 94 in the left-right direction. Further, in the optical wiring unit 90 shown in FIG. 2, since three optical fiber storage trays 92 are stacked, a plurality (here, 144) of the optical wiring units 90 are provided on the near side (operator side) of the optical wiring unit 90. The connection ports 94 are arranged at a high density. The cap 1 may be attached to each of the connection ports 94 arranged at such a high density. In the case where the cap 1 is manually attached and detached without using the cap attaching / detaching tool 10 of the present embodiment, the operator grasps the cap head 2 of the cap 1 to be attached and detached by hand, for example. Will be done. However, it may be difficult to pinch the cap 1 attached to the connection ports 94 arranged at high density by hand. For this reason, when attaching and detaching the cap 1 to and from the connection port 94, the cap 1 may be dropped unexpectedly. Further, although not shown in FIG. 2, an optical plug may already be connected to the connection port 94 other than the one to which the cap 1 is attached or detached. In this case, when attaching or detaching the cap 1, the optical fiber cable extending from the optical plug to the near side (operator side) may be touched, and the possibility of the cap 1 dropping unexpectedly may increase. Furthermore, touching the optical fiber cable extending from the optical plug may cause bending or damage to the optical fiber cable, thereby increasing the loss.

  As shown in FIG. 1A, the cap attaching / detaching tool 10 of the present embodiment has an elongated shape in the front-rear direction. An operation unit 12 is provided at a rear end of the cap attaching / detaching tool 10, and a cap holding unit 11 is provided at a front end of the cap attaching / detaching tool 10. Here, as will be described later, the operation unit 12 is a part held by the operator's hand, and the cap holding unit 11 is a part that holds the cap 1. That is, there is no need to pinch the cap head 2 of the cap 1 to be detached. This can prevent the cap 1 from dropping unexpectedly when the cap 1 is attached to or detached from the connection port 94.

  Further, as shown in FIG. 1A, in the cap attaching / detaching tool 10 of the present embodiment, the operation unit 12 held by the operator and the cap holding unit 11 holding the cap 1 are separated by a predetermined distance. . Therefore, for example, when attaching the cap 1 to be attached / detached to the connection port 94, the operator can make only the cap holding unit 11 holding the cap 1 approach the connection port 94. Thereby, it is possible to prevent the user from touching the optical fiber cable extending from the optical plug connected to the connection port 94 other than the object to which the cap 1 is attached or detached. In addition, the attaching / detaching operation of the cap 1 by the cap attaching / detaching tool 10 of the present embodiment will be described later.

<Structure of the cap attaching / detaching tool 10>
FIG. 3A is a perspective view of the cap attaching / detaching tool 10 of the present embodiment in a holding state. FIG. 3B is an enlarged view of the cap holding portion 11 in FIG. 3A. FIG. 4A is a perspective view of the cap attaching / detaching tool 10 of the present embodiment with the cap 1 in a holding state. FIG. 4B is an enlarged view of the cap holding portion 11 in FIG. 4A. 5A and 5B are enlarged sectional views of the cap holding portion 11 of the cap attaching / detaching tool 10 of the present embodiment with the cap 1 in the holding state.

  The cap attaching / detaching tool 10 has a main body part 20 and a slide part 21 inserted through the main body part 20. As described above, the operation unit 12 is provided at the rear end of the cap attaching / detaching tool 10 composed of the main body unit 20 and the slide unit 21, and the cap attaching / detaching tool 10 is provided at the front end thereof. A holding unit 11 is provided.

  The cap holding unit 11 is a part that holds the cap 1 when the cap 1 is attached or detached. The cap holding unit 11 holds the cap 1 by restricting the cap head 2 of the cap 1 from coming off the cap holding unit 11 in the front-back direction, the left-right direction, and the up-down direction. As shown in FIGS. 4A and 4B, the cap holding unit 11 holds the cap 1 such that the cap body 5 projects from the cap holding unit 11 on the front side. Accordingly, the operator can easily attach and detach the cap 1 to and from the connection port 94 simply by relatively moving the cap body 5 of the cap 1 held by the cap holding section 11 to the connection port 94 of the optical adapter 93. Can be.

  The cap holding part 11 has a housing part 13 and an insertion part 14.

  The housing section 13 is a section for housing the cap head 2 of the cap 1 held by the cap holding section 11. The housing 13 is a portion provided at the front end of the main body 20 described above. As shown in FIGS. 4A to 5B, in the cap attaching / detaching tool 10 of the present embodiment, the cap 1 is restricted from moving downward by the bottom surface of the accommodating portion 13 accommodating the cap head 2.

  As shown in FIGS. 3A to 4B, an insertion port 15 is provided on the upper side of the storage unit 13. The insertion port 15 is a part for taking the cap head 2 of the cap 1 into and out of the storage unit 13. The insertion opening 15 is a portion of the cap holding unit 11 that forms the storage unit 13, the upper side of which is cut out.

  In addition, as shown in FIGS. 3A to 4B, a throttle unit 17 is provided on the front side of the storage unit 13. The squeezing section 17 is a part that restricts the movement of the cap head 2 in the left-right direction, the downward direction, and the forward direction. As shown in FIG. 4B, in the cap attaching / detaching tool 10 of the present embodiment, the cap main body 5 that protrudes from the cap holding unit 11 to the front side is placed on the narrowing unit 17. Thereby, the movement of the cap 1 in the left-right direction and the downward direction is restricted. Further, in the cap attaching / detaching tool 10 of the present embodiment, the inner periphery of the portion of the squeezed portion 17 on which the cap body 5 is placed is formed smaller than the outer periphery of the flange 3 of the cap head 2. For this reason, even if the cap head 2 accommodated in the accommodating portion 13 moves forward with respect to the cap holding portion 11, the flange 3 of the cap head 2 hits the squeezing portion 17 and the cap head 2 is 11 cannot be moved further forward. Thereby, it is possible to prevent the cap 1 held by the cap holding unit 11 from coming off to the front side.

  Further, as shown in FIG. 3B, an inner end face 22 is provided on the rear side of the housing 13. The inner end face 22 is a part that regulates the backward movement of the cap head 2. Even if the cap head 2 accommodated in the accommodating portion 13 moves rearward with respect to the cap holding portion 11, the cap head 2 hits the inner end face 22 and the cap head 2 moves with respect to the cap holding portion 11. Above, it cannot move to the rear side.

  The insertion portion 14 is a portion that restricts the upward movement of the cap head 2. The insertion portion 14 is a portion provided at the front end of the slide portion 21 described above. The insertion portion 14 is inserted into the hole formed in the main body portion 20 described above, and can protrude from the inner end surface 22 to the housing portion 13. As shown in FIG. 1B described above, in the cap attaching / detaching tool 10 of the present embodiment in the holding release state (initial state), the insertion portion 14 is retracted to the rear side and does not protrude from the storage portion 13. However, as shown in FIG. 3B, in the cap attaching / detaching tool 10 of the present embodiment in the holding state, the insertion portion 14 protrudes forward, and protrudes from the housing portion 13. As shown in FIG. 4B, in the cap attaching / detaching tool 10 of the present embodiment in the holding state, the cap 1 is accommodated in the accommodating portion 13, and the insertion portion 14 is inserted into the hole 4 formed in the cap head 2. Will be done.

  As described above, the insertion port 15 is provided above the storage section 13, and the cap head 2 of the cap 1 is inserted into and removed from the storage section 13 through the insertion port 15 in the holding release state (initial state). It is possible. However, in the holding state, the insertion portion 14 is inserted into the hole 4 of the cap head 2 so that the cap head 2 accommodated in the accommodation portion 13 moves upward with respect to the cap holding portion 11. The inner wall surface of the hole 4 of the cap head 2 hits the insertion portion 14 so that the cap head 2 cannot move further upward with respect to the cap holding portion 11. Thereby, it is possible to prevent the cap 1 held by the cap holding unit 11 from being pulled upward.

  As described above, downward movement of the cap head 2 is restricted by the bottom surface of the housing portion 13 that forms the cap holding portion 11. Then, the squeezing portion 17 of the housing portion 13 prevents the cap head 2 from moving in the left-right direction, the downward direction, and the front direction with respect to the cap holding portion 11. In addition, the cap end 2 cannot be moved rearward with respect to the cap holder 11 due to the inner end surface 22 of the housing 13. Further, the cap head 2 cannot be moved upward with respect to the cap holding part 11 by the insertion part 14 constituting the cap holding part 11. Therefore, the cap holding unit 11 can hold the cap 1 by restricting the cap head 2 of the cap 1 from coming off the cap holding unit 11 in the front-back direction, the left-right direction, and the up-down direction. In addition, as described above, the two parts that restrict the downward movement of the cap head 2 with respect to the cap holding part 11 are the bottom surface of the housing part 13 and the squeezed part 17 of the housing part 13. However, either may be sufficient.

  As described above, in the cap attaching / detaching tool 10 of the present embodiment in the holding state, the cap 1 is accommodated in the accommodating portion 13, and the insertion portion 14 is inserted into the hole 4 formed in the cap head 2. I have. That is, as shown in FIGS. 5A and 5B, the position (X1) of the front end surface of the insertion portion 14 is located on the front side of the position (X2) of the rear end surface of the cap head 2. Thereby, even if the cap head 2 accommodated in the accommodating portion 13 moves upward with respect to the cap holding portion 11, the inner wall surface of the hole 4 of the cap head 2 hits the insertion portion 14, and the cap head 2 Cannot move further upward with respect to the cap holding portion 11.

  However, desirably, in the cap attaching / detaching tool 10 of the present embodiment in the holding state, as shown in FIGS. 5A and 5B, the position (X1) of the front end surface of the insertion portion 14 is the position of the front end surface of the cap holding portion 11. It may be located on the front side of the position (X3). In other words, the end surface (X1) of the insertion portion 14 when the insertion portion 14 is inserted into the hole 4 of the cap head 2 is the end surface (the external surface) of the cap holding portion 11 when the insertion portion 14 is not inserted into the hole 4. It may project beyond the end face 23, X3). Thereby, it is possible to further suppress the cap 1 held by the cap holding unit 11 from falling upward. That is, as shown in FIGS. 5A and 5B, in the cap attaching / detaching tool 10 according to the present embodiment in the holding state, the cap head 2 is easily moved in and out of the housing portion 13 in order to make the cap head 2 easily come in and out. The accommodating portion 13 may be formed such that a gap 24 is provided between the position (X2) of the side end surface and the internal end surface 22. Even when such a gap 24 is provided, it is possible to further suppress the cap 1 held by the cap holding portion 11 from falling upward. However, if the insertion portion 14 is inserted into the hole 4 formed in the cap head 2 (the position (X1) of the front end surface of the insertion portion 14 is greater than the position (X2) of the rear end surface of the cap head 2). (If it is also located on the front side), the position (X1) of the front end face of the insertion section 14 may not be located on the front side than the position (X3) of the front end face of the cap holding section 11.

  The operation unit 12 is a part held by an operator when attaching and detaching the cap 1. The operation unit 12 is also a part that switches between a state in which the cap 1 is held (holding state) and a state in which the cap 1 is not held (holding released state). The operation unit 12 has operation buttons 18. The operation button 18 is a part formed integrally with the insertion part 14 of the cap holding part 11. For this reason, when the operation button 18 moves to the front side, the insertion portion 14 also moves to the front side, and protrudes from the housing portion 13. Similarly, when the operation button 18 moves to the rear side, the insertion portion 14 also moves to the rear side, so that the insertion portion 14 is retracted to the rear side without projecting from the housing portion 13.

  As described above, when the insertion portion 14 protrudes forward, the insertion portion 14 is inserted from the hole 4 formed in the cap head 2, and the cap head 2 moves upward with respect to the cap holding portion 11. become unable. Thereby, the cap 1 is in a holding state. When the insertion portion 14 is retracted rearward, the insertion portion 14 is pulled out from the hole 4 formed in the cap head 2 of the cap 1, and the cap head 2 moves upward with respect to the cap holding portion 11. It becomes possible. That is, the cap head 2 of the cap 1 can be put into and taken out of the housing 13 through the insertion opening 15. As a result, the cap 1 enters the holding release state. As described above, by moving the operation button 18 of the operation unit 12 in the front-rear direction, the insertion unit 14 also moves in the front-rear direction, and holds the cap 1 (holding state) and the cap 1. The state can be switched between a non-holding state (a holding release state). In addition, in the cap attaching / detaching tool 10 of the present embodiment, the operation unit 12 may not be provided.

<Attachment / detachment of cap 1>
FIGS. 6A to 6C are cross-sectional views of the cap attaching / detaching tool 10 of the present embodiment showing a state in which the cap 1 is held.

  6A to 6C show the manner in which the cap 1 is held by the cap attaching / detaching tool 10 of the present embodiment when the cap 1 attached to the connection port is removed, in the order of FIGS. 6A to 6C. When removing the cap 1 attached to the connection port, the operator first holds the cap attaching / detaching tool 10 in his / her hand, and moves the cap holding unit 11 to the cap head 2 side of the cap 1. As described above, the insertion slot 15 is provided in the storage section 13 of the cap holding section 11. As shown in FIG. 6A, the worker inserts the cap head 2 into the insertion port 15, and passes the cap head 2 through the insertion port 15 and stores it in the storage section 13 (see FIG. 6B). When the cap head 2 is housed in the housing portion 13 through the insertion opening 15, the cap attaching / detaching tool 10 of the present embodiment is in an initial state (retained release state). That is, the insertion portion 14 of the cap holding portion 11 is moved rearward, and is retracted rearward without protruding from the housing portion 13. For this reason, the cap head 2 can be housed in the housing 13 through the insertion opening 15.

  After the state shown in FIG. 6B, the operator presses the operation button 18 of the operation unit 12 forward. When the operation button 18 moves to the front side, the insertion portion 14 integrally formed with the operation button 18 also moves to the front side, and protrudes from the housing portion 13. When the insertion portion 14 protrudes forward, the insertion portion 14 is inserted from the hole 4 formed in the cap head 2, and the cap head 2 cannot move upward with respect to the cap holding portion 11 ( See FIG. 6C). Thereby, the cap 1 is in a holding state. Then, the worker moves the cap attaching / detaching tool 10 from the connection port toward the front (rear side) while holding the cap 1, whereby the cap 1 is removed from the connection port.

  When attaching the cap 1 to the connection port, the cap attaching / detaching tool 10 operates in the order shown in FIG. 6C to FIG. 6A. That is, when attaching the cap 1 to the connection port, the operator first holds the cap attaching / detaching tool 10 holding the cap 1 in his hand, and moves the cap holding unit 11 to the connection port side (see FIG. 6C). . After attaching the cap 1 to the connection port, the operator moves the operation button 18 of the operation unit 12 to the rear side. When the operation button 18 moves to the rear side, the insertion portion 14 integrally formed with the operation button 18 also moves to the rear side, and is in a state of being retracted into the housing portion 13. When the insertion portion 14 is retracted rearward, the insertion portion 14 is pulled out from the hole 4 formed in the cap head 2, and the cap head 2 can move upward with respect to the cap holding portion 11. (See FIG. 6B). As a result, the cap 1 enters the holding release state. Then, the operator can pull out the cap head 2 from the housing portion 13 through the insertion opening 15 (see FIG. 6A).

  As shown in FIGS. 6A to 6C, the cap holding unit 11 of the present embodiment has a spring 16. The spring 16 is a member for restoring the positional relationship between the housing portion 13 and the insertion portion 14. The spring 16 is arranged between a member provided with the housing 13 and a member provided with the insertion portion 14. Specifically, the front end of the spring 16 is supported by a member provided with the housing portion 13, and the rear end of the spring 16 is supported by a member provided with the insertion portion 14. When holding the cap 1, when the member provided with the insertion portion 14 is pressed forward by pressing the operation button 18 of the operation portion 12 forward, the spring 16 is compressed and deformed, and the insertion portion 14 is It moves to the front side with respect to the accommodation part 13. When the compression-deformed spring 16 is restored, the insertion portion 14 moves rearward with respect to the housing portion 13 and returns to the original position. This makes it possible to easily switch from the holding state to the holding release state. However, the cap holding part 11 of the present embodiment does not have to have the spring 16.

<Modification>
7A and 7B are plan views of a cap attaching / detaching tool 10 according to a modification of the present embodiment, showing a state in which the cap 1 is held.

  In the above-described embodiment, the optical adapter 93 is an optical adapter for connecting LC connectors. As shown in FIG. 2, the cap 1 is attached to the connection port 94 of the single-core type optical connector plug, and the cap attaching / detaching tool 10 removes the cap 1 attached to each connection port 94 by one. It could be attached and detached one by one. However, in the cap attaching / detaching tool 10 of the present modification, an optical adapter having a plurality of adjacent connection ports such as an optical adapter for connecting DLC connectors can be used. That is, the insertion portions 14 provided in the plurality (here, two) of the cap holding portions 11 can be respectively inserted into the holes 4 of the plurality (here, two) of the caps 1.

=== Others ===
The embodiments described above are intended to facilitate understanding of the present invention, and are not intended to limit the present invention. The present invention can be changed and improved without departing from the gist thereof, and it goes without saying that the present invention includes its equivalents.

1 cap, 2 cap head, 3 flange, 4 holes,
5 cap body, 10 cap attaching / detaching tool, 11 cap holder,
12 operation part, 13 accommodation part, 14 insertion part, 15 insertion port,
16 spring, 17 aperture, 18 operation button, 19 handle,
20 body part, 21 slide part, 22 internal end face, 23 external end face,
24 gap, 90 optical wiring unit, 91 housing,
92 Optical fiber storage tray, 93 Optical adapter, 94 Connection port

Claims (5)

A cap attached to a connection port for connecting an optical connector, a cap head provided with a flange, and a cap attaching / detaching tool for the cap having a hole formed in the cap head,
A cap attaching / detaching tool, comprising: a cap holding portion including a housing portion in which the cap head is housed and an insertion portion inserted into the hole. It is a cap attachment / detachment tool according to claim 1,
An operation unit that switches between a holding state in which the insertion section is inserted into the hole and a holding release state in which the holding state is released in a state in which the cap head is housed in the housing section. Cap removal tool. It is a cap attaching / detaching tool according to claim 2,
The cap attaching / detaching tool, further comprising: a spring for restoring a positional relationship between the housing section and the insertion section. A cap attaching / detaching tool according to any one of claims 1 to 3,
An end face of the insertion portion when inserted into the hole projects from an end surface of the cap holding portion when the insertion portion is not inserted into the hole. tool. It is a cap attaching / detaching tool according to claim 2,
Having a plurality of the cap holding portions,
The cap attachment / detachment tool, wherein the operation unit causes the insertion portions provided in the plurality of cap holding units to be respectively inserted into the holes of the plurality of caps.

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