JP4855310B2 - Optical wiring unit - Google Patents

Description

  The present invention relates to an optical wiring unit that constitutes an optical wiring board, an optical wiring box, and the like, and more particularly to an optical wiring unit that is configured by storing an optical component storage case such as an optical branching unit in a rack.

Conventionally, as an optical wiring unit, an optical component storage case composed of an optical branching unit or the like is inserted and stored in a rack (see Patent Documents 1 to 3).
In the optical fiber storage unit described in Patent Document 1, a plurality of optical fiber storage trays can be stored in the housing. The optical fiber storage tray is supported by the housing so that it can be pulled out by a slide rail. The optical fiber storage tray stops at the pull-out position when the clip attached to the tray is locked to the slide rail.
The light distribution panel described in Patent Document 2 can store a plurality of light branching units in a panel case. The optical branching unit described in Patent Document 3 is configured to be housed in a wiring rack.
JP 2006-227041 A JP 2000-275447 A JP-A-11-231147

In the above-described prior art, if an optical fiber cord or the like connected to the optical component storage case is touched and bent by an operator during insertion / removal or the like, a loss may occur in the transmitted optical signal. is there.
Further, when the slide rail is used, there is a problem that the structure is complicated and the cost is increased.
The present invention has been made in view of such circumstances, and can prevent loss during the insertion / extraction work of an optical fiber cord or the like with respect to an optical component storage case, and can realize cost reduction. An object is to provide a wiring unit.

The present invention is an optical wiring unit comprising an optical component storage case having a connection portion to which an optical connector is connected on one end surface, and a rack for storing the optical component storage case, wherein the optical component storage The case includes a storage case main body in which the connection portion is formed, a handle formed so as to protrude from the storage case main body, and a first portion that is locked to the rack at a storage position where the storage case main body is stored in the rack. comprising 1 a latch, a second latch, wherein the storage case body is engaged with the rack pull-out position drawn out in the one side from the stowed position, the first latch includes a first base portion, the first A first other extension portion extending from the base to the other direction opposite to the one, and the first other extension portion includes a first that can be locked to the rack from the one side at the extraction position. The other locking projection is formed The second latch includes a second base formed on the other side of the first base and a second first extension extending from the second base to the one side, and the second first extension. Is formed with a second one locking projection that can be locked to the rack from the other side at the drawer position, and the first other extending portion is elastically deformed toward the storage case body, By pressing and elastically deforming the second one extending portion, the first other locking convex portion and the second first locking convex portion are displaced to release the locking to the rack. Provided is an optical wiring unit capable of releasing any one of the movement restrictions of the main body from the drawing position.
In the optical wiring unit of the present invention, the first latch has a first one locking projection that can be locked to the rack from the other side in the storage position, and the handle portion extends from the storage case body. And a handle extending portion extending from the handle portion main body to the other, the handle extending portion elastically deforms toward the storage case main body, presses the first latch, and The second one locking projection can be released from the one side at the storage position by releasing the locking to the rack by displacing the first one locking projection. A pressing portion having a pressing portion base portion formed on the other side of the second latch and a pressing extension portion extending from the pressing portion base portion to the one side is formed on the storage case body, and the pressing portion is formed. The rolled part is elastically deformed toward the storage case body. By Rukoto, good as possible is released constituting engagement for said rack said second latch by displacing the pressed second other engaging convexed latch portion.
In the optical wiring unit of the present invention, the second latch includes a second other extension portion extending from the second base portion to the other side, and the second other extension projection portion includes the second other locking projection portion. The second other locking projection is displaced by elastically deforming the second other extending portion being pressed by the pressing extension, and releasing the locking to the rack, The movement restriction of the storage case body from the storage position to the other side is released, and the first latch includes a first one extension part extending from the first base part to the one side, and the first one extension part. The first one locking projection is formed on the portion, and the first one locking projection is displaced by elastically deforming the first one extending portion being pressed by the handle extending portion. The storage position of the storage case body is released by releasing the lock on the rack. Good configured so as to release the movement restriction of al the to one.
In the optical wiring unit of the present invention, the rack includes a plate on one side and a plate on the other side provided on the other side, and the locking position of the first one locking projection with respect to the rack. Is the one side plate, and the locking position of the second other locking projection with respect to the rack may be the other side plate.
In the optical wiring unit of the present invention, the other surface of the first one locking projection is an inclined surface that gradually approaches the storage case body toward the other, and the one surface of the second other locking projection. However, it is good also as a structure which is an inclined surface which leaves | separates from the said storage case main body gradually toward the said other.

According to the optical wiring unit of the present invention, the optical component storage case includes the first latch that is locked to the rack at the storage position and the second latch that is locked to the rack at the extraction position. Only the component storage case can be pulled out, and an optical fiber cord or the like can be inserted and removed.
For this reason, the optical fiber cord connected to the other optical component storage case is not affected, and the optical signal is not lost.
In addition, since the first and second latches are configured to be locked to the rack, the structure is simple, so that the cost can be reduced.

Hereinafter, an example of an optical wiring unit according to the present invention will be described with reference to the drawings.
1A and 1B are views showing an optical component storage case 10 used in this optical wiring unit, where FIG. 1A is a rear view, FIG. 1B is a front view, and FIG. 1C is a front view. FIG. 2 is an enlarged front view showing a main part of the optical component storage case 10. FIG. 3 is an enlarged front view showing the first latch 30. FIG. 4 is an enlarged front view showing the second latch 40. FIG. 5 is an overall perspective view of the optical component storage case 10. FIG. 6 is an explanatory diagram showing an example of the internal configuration of the optical component storage case 10. FIG. 7 is a perspective view showing a state in which the optical component storage case 10 is stored in the rack 60. FIG. 8 is a front view showing the front plate 61 of the rack 60. 9 and 10 are enlarged views showing a main part of the front plate 61. FIG. FIG. 11 is a front view showing the rear plate 62 of the rack 60.

As shown in FIG. 7, the optical wiring unit includes an optical component storage case 10, a rack 60 for storing the optical component storage case 10, and a panel case 80 for storing them.
As shown in FIGS. 1 and 2, the optical component storage case 10 includes a storage case main body 11, a handle portion 20 formed to protrude in front of the storage case main body 11, and a second portion formed at the rear of the handle portion 20. 1 latch 30, a second latch 40 formed behind the first latch 30, and a pressing portion 50 formed behind the second latch 40.
Hereinafter, the right side in FIG. 2 may be referred to as the front, and the left side may be referred to as the rear.

The storage case body 11 is formed in a substantially rectangular plate-like case shape, and a first connection portion 13 to which an optical connector is connected is formed on a front end surface 12 which is one end surface, and the rear end surface is the other end surface. A second connection portion 15 to which the optical connector is connected is formed on the end surface 14.
The first connection unit 13 is an output connector, and examples thereof include an optical connector adapter (hereinafter simply referred to as an adapter) to which a single-core optical connector such as an LC connector, an SC connector, or an MU connector can be connected.
The 2nd connection part 15 is an input connector, and can illustrate the adapter which can connect single core optical connectors, such as LC connector, SC connector, and MU connector.

As shown in FIG. 2, the handle portion 20 is gripped by an operator when inserting and pulling out the optical component storage case 10, and forwards from the upper end portion of the front end surface 12 of the storage case body 11. A protruding handle body 21, a base 22 that protrudes upward from the front of the handle body 21, and a handle extension 23 that extends rearward from the upper end of the base 22.
The handle extension 23 is formed in a plate shape that can be bent and deformed elastically up and down, and extends rearward from the upper end surface 16 of the storage case main body 11 at a substantially constant distance.
As will be described later, the height of the handle portion 20 is lower than that of the first and second latches 30 and 40 and is not locked to the rack 60 when inserted into the rack 60.

As shown in FIGS. 2 and 3, the first latch 30 includes a base portion 31 that protrudes upward from the upper end surface 16 of the storage case body 11, and a first front extension portion 32 that extends forward from the top of the base portion 31 (first 1 extension part) and the 1st back extension part 33 (1st other extension part) extended back from the upper part of the base 31.
The front and rear extending portions 32 and 33 are plate-shaped that can be bent and deformed elastically up and down, and are formed substantially parallel to the upper end surface 16.

A first front locking projection 34 (first one locking projection) protruding upward is formed at the tip of the first front extension 32.
The first front locking projection 34 has a front surface 34a that is substantially perpendicular to the upper end surface 16, and a rear surface 34b that is an inclined surface that gradually descends rearward. The first front locking projection 34 is formed so as to protrude above the upper surface of the first front extension 32. The first front locking protrusion 34 can be detachably locked to the front plate 61 by bending deformation of the first front extension 32.
Since the extending portions 32 and 33 are substantially the same height as the handle extending portion 23 of the handle portion 20, the first latch 30 is formed higher than the handle portion 20 by the amount of the first front locking convex portion 34. Will be.
A contact piece 35 extending forward is formed at the tip of the first front extension 32. The contact piece 35 has reached a position below the tip of the handle extension 23.

A first rear locking projection 36 (first other locking projection) protruding upward is formed at the tip of the first rear extension 33.
The first rear locking projection 36 is an inclined surface in which the front surface 36 a gradually rises rearward, and the rear surface 36 b is substantially perpendicular to the upper end surface 16. The first rear locking projection 36 can be engaged with and disengaged from the front plate 61 by bending deformation of the first rear extension 33.

As shown in FIGS. 2 and 4, the second latch 40 includes a base 41 that protrudes upward from the upper end surface 16 of the storage case main body 11, and a second front extension 42 (a first extension) that extends forward from the top of the base 41. 2 one extension part) and the 2nd back extension part 43 (2nd other extension part) extended back from the upper part of the base 41.
The front and rear extending portions 42 and 43 are plate-shaped that can be elastically bent up and down, and are formed substantially parallel to the upper end surface 16.

A second front locking projection 44 (second one locking projection) protruding upward is formed at the tip of the second front extension 42.
The second front locking projection 44 has a front surface 44a that is substantially perpendicular to the upper end surface 16, and a rear surface 44b that is an inclined surface that gradually descends rearward. The second front locking projection 44 is formed so as to protrude above the upper surface of the second front extension 42. The second front locking projection 44 can be detachably locked to the rear plate 62 by bending deformation of the second front extension 42.
Since the extending portions 42 and 43 are substantially the same height as the handle extending portion 23 of the handle portion 20, the second latch 40 is formed higher than the handle portion 20 by the amount of the second front locking convex portion 44. Will be.
A contact piece 45 extending forward is formed at the tip of the second front extension 42. The contact piece 45 reaches a position below the tip of the first rearward extension 33.

A second rear locking projection 46 (second other locking projection) protruding upward is formed at the tip of the second rear extension 43.
The second rear locking projection 46 is an inclined surface in which the front surface 46 a gradually rises rearward, and the rear surface 46 b is substantially perpendicular to the upper end surface 16.
A contact piece 47 extending rearward is formed at the tip of the second rearward extension 46.

As shown in FIG. 2, the pressing portion 50 includes a base portion 51 that protrudes upward from the rear portion of the upper end surface 16, and a pressing extension portion 52 that extends forward from the upper end portion of the base portion 51.
The pressing extension 52 is formed in a plate shape that can be bent and deformed elastically up and down, and is formed substantially parallel to the upper end surface 16. The tip of the pressing extension 52 reaches the position above the contact piece 47.

  As shown in FIG. 5, a protrusion 17 having a rectangular cross section is formed on the lower end of the storage case body 11 in the front-rear direction, and a key protrusion having a rectangular cross section is formed on the lower surface of the protrusion 17. The part 18 is formed over the front-rear direction. The key convex portion 18 is formed not at the central portion in the thickness direction of the protruding portion 17 but at a position biased to one side in the thickness direction.

  Since the storage case body 11 can be made of plastic, it is advantageous in terms of cost.

  FIG. 6 shows an example of the internal structure of the storage case body 11. In this example, the first connection portion 13 and the second connection portion 15 are optically connected via optical couplers 91 and 92. .

As shown in FIG. 7, the rack 60 includes a rectangular frame-shaped front plate 61 having an insertion opening 65, a rectangular frame-shaped rear plate 62 having an insertion opening 66, an upper plate portion 63, and a lower plate portion. 64.
As shown in FIGS. 8 and 9, the upper frame 61 a of the front plate 61 is formed with an upper fitting recess 70 having a shape corresponding to the upper end portion of the optical component storage case 10.

As shown in FIGS. 8 and 10, a lower fitting recess 71 having a shape corresponding to the lower end portion of the optical component storage case 10 is formed in the lower frame 61 b.
The lower fitting recess 71 includes a rectangular base recess 72 that follows the cross-sectional shape of the protrusion 17, and a key recess 73 formed in the bottom edge 72 a of the base recess 72.
The key concave portion 73 is formed in a rectangular shape along the cross-sectional shape of the key convex portion 18, and the key convex portion 18 is fitted therein.
Since the key concave portion 73 has a shape corresponding to the key convex portion 18, the key concave portion 73 is formed not at the center portion of the bottom edge portion 72 a but at a position biased in the thickness direction of the optical component storage case 10.
For this reason, the optical component storage case 10 can be inserted into the rack 60 only with the front end face 12 facing forward.
In the illustrated example, the key convex portion 18 is formed in the optical component storage case 10 and the key recess 73 is formed in the rack 60 to be fitted thereto. A recess may be formed, and a key protrusion that can be fitted into the key recess may be formed in the rack.

As shown in FIG. 11, the upper fitting recess 70 is also formed in the upper frame 62 a of the rear plate 62 in the same manner as the front plate 61.
A lower fitting recess 74 having a shape corresponding to the lower end of the optical component storage case 10 is formed in the lower frame 62b. The lower fitting recess 74 has a shape that is opposite to the lower fitting recess 71 of the front plate 61.

As shown in FIG. 7, the upper plate portion 63 is provided between the upper frame 61 a of the front plate 61 and the upper frame 62 a of the rear plate 62. A plurality of guide slits 68 into which the upper end portion of the optical component storage case 10 can be inserted are formed in the upper plate portion 63 along the front-rear direction.
The width of the guide slit 68 is substantially the same as the width of the upper fitting recess 70 and is formed at a position corresponding to the upper fitting recess 70.
The lower plate portion 64 is provided between the lower frame 61 b of the front plate 61 and the lower frame 62 b of the rear plate 62. A plurality of guide slits 69 into which the lower end portion of the optical component storage case 10 can be inserted are formed in the lower plate portion 64 along the front-rear direction.
The width of the guide slit 69 is substantially the same as the width of the lower fitting recesses 71 and 74 and is formed at a position corresponding to the lower fitting recesses 71 and 74.

Next, the operation performed by the optical wiring unit will be described.
As shown in FIG. 12, the optical component storage case 10 can be inserted into the rack 60 from the front insertion opening 65 with the front end face 12 facing forward.
As shown in FIG. 13, the optical component storage case 10 is inserted into the rack 60 along the guide slits 68 and 69 and reaches the storage position P1.
As shown in FIG. 15, at the storage position P <b> 1, the first front locking protrusion 34 of the first latch 30 is locked to the front plate 61.

When an operator pinches the handle body 21 and the handle extension 23 of the handle portion 20 and elastically bends and deforms the handle extension 23 downward, the distal end of the handle extension 23 extends forward in the first direction. The contact piece 35 of the part 32 is pressed downward, and the first front extension part 32 is elastically bent and deformed downward.
As a result, the first front locking projection 34 moves downward, the locking to the front plate 61 is released, and the optical component storage case 10 can move forward.

As shown in FIGS. 14 and 16, when the operator pulls the handle portion 20 forward, the optical component storage case 10 moves forward, and the second front locking convex portion 44 of the second latch 40 is moved to the front plate 61. Lock to. This position is referred to as a drawing position P2.
The operator can perform an insertion / extraction operation of the optical fiber cord and the like with respect to the first connection portion 13 at the drawing position P2. For this reason, the optical fiber cord connected to the other optical component storage case 10 in the storage position P1 is not affected.
As shown in FIG. 14, the optical component storage case 10 at the pull-out position P2 can be moved rearward and returned to the storage position P1 after the work is completed. When the optical component storage case 10 is moved rearward, it is preferable that the first rearward extending portion 33 is bent and deformed downward so that the first rearward locking convex portion 36 is not caught on the front plate 61.

As shown in FIG. 17, the optical component storage case 10 can be inserted into the rack 60 from the rear insertion opening 66 with the front end face 12 facing forward.
As described above, since the handle portion 20 is formed lower than the first and second latches 30 and 40, the handle portion 20 is not locked to the front plate 61 and the rear plate 62 even when inserted into the rack 60.

As shown in FIG. 18, the optical component storage case 10 can also be inserted into the rack 60 from the insertion opening 65 on the front side with the front end face 12 facing rearward.
As shown in FIG. 19, it can be inserted into the rack 60 from the rear insertion opening 66 in the same posture.
As shown in FIG. 20, the optical component storage case 10 disposed at the storage position P1 can be pulled out rearward from the storage position P1 with the front end face 12 facing rearward.
Thus, the insertion direction of the optical component storage case 10 with respect to the rack 60 is not limited.

In the optical wiring unit, the optical component storage case 10 includes the first latch 30 that is locked to the rack 60 at the storage position P1, and the second latch 40 that is locked to the rack 60 at the pull-out position P2. Only an optical component storage case 10 can be pulled out, and an optical fiber cord or the like can be inserted and removed.
For this reason, the optical fiber cord connected to the other optical component storage case 10 is not affected, and the optical signal is not lost.
In addition, since the first and second latches 30 and 40 are configured to be locked to the rack 60, the structure is simple, so that the cost can be reduced.

  Further, in the optical component storage case 10, since the first front extending portion 32 can be elastically deformed downward by the handle portion 20 and the first latch 30 can be unlocked, the unlocking operation is easy. It is.

Further, since the handle portion 20 is lower than the first and second latches 30 and 40, as shown in FIG. 17, the rack 60 extends from the rear insertion opening 66 with the front end face 12 facing forward. Can be inserted in.
Thus, since the insertion direction with respect to the rack 60 of the optical component storage case 10 is not limited, the application range can be widened. For example, even if work cannot be performed from one of the front side and the rear side, work from the other side is possible.
Moreover, when removing the optical component storage case 10, it can remove from the rear insertion opening 66, without touching the optical fiber cord etc. which were connected to the 1st connection part 13 of the front side. Therefore, the other optical component storage case 10 is not affected and no loss occurs.

In the optical component storage case 10 of the illustrated example, when inserting and pulling out the rack 60, the pressing extension 52 is elastically bent and deformed downward to press the contact piece 47 downward as necessary. The second rear locking projection 46 can be lowered so that it does not lock the rack 60.
Further, the first rear extension 33 is elastically bent and deformed downward to press the contact piece 45 downward, and the second front locking projection 44 is lowered so that it does not lock the rack 60. Can be.

FIGS. 21 and 22 show another example of the optical component storage case. The optical component storage case 100 shown here includes a storage case main body 101, a handle 20, a first latch 30, and a second latch. 40 and a pressing portion 50.
The storage case main body 101 includes a main body portion 102 and an extra length storage portion 103 attached to the rear end of the main body portion 102.
A connecting portion 13 is provided on the front end surface 12 of the main body portion 102.
The extra length storage unit 103 can store the extra length 104 and the fusion splicing unit 105.

23 and 24 show another example of the optical component storage case. The optical component storage case 110 shown here includes a storage case main body 111, a handle portion 20, a first latch 30, and a second latch. 40 and a pressing portion 50.
A first connection portion 13 is provided on the front end surface 12 of the storage case main body 111.
A second connection portion 15 is provided on the rear end surface 14. As the 2nd connection part 15, a multi-core adapter, for example, MT adapter, can be mentioned.

25 and 26 show another example of the optical component storage case. The optical component storage case 120 shown here includes a storage case main body 121, a handle 20, a first latch 30, and a second latch. 40 and a pressing portion 50.
First to third connection portions 122 to 124 are provided on the front end surface 12 of the storage case main body 121.
The optical component storage case 120 is connected so that the connection parts 122 to 124 constitute an optical coupler.

  The optical component storage case in the present invention is not limited to the illustrated example, and may be configured as an optical splitter, an optical filter, or the like.

It is a figure which shows the optical component storage case used for an example of the optical wiring unit which concerns on this invention, (a) is a rear view, (b) is a front view, (c) is a front view. It is a front view which expands and shows the principal part of the optical component storage case shown in FIG. It is a front view which expands and shows the 1st latch of the optical component storage case shown in FIG. It is a front view which expands and shows the 2nd latch of the optical component storage case shown in FIG. It is a whole perspective view of the optical component storage case shown in FIG. It is explanatory drawing which shows the example of an internal structure of the optical component storage case shown in FIG. It is a perspective view which shows the state in which the optical component storage case shown in FIG. 1 is accommodated in the rack. It is a front view which shows the front board of the rack shown in FIG. It is an enlarged view which shows the principal part of the front board shown in FIG. It is an enlarged view which shows the principal part of the front board shown in FIG. FIG. 8 is a front view showing a rear plate of the rack shown in FIG. 7. It is explanatory drawing which shows operation which accommodates the optical component storage case shown in FIG. 1 in a rack. It is explanatory drawing which shows the state which accommodated the optical component storage case shown in FIG. 1 in the rack. It is explanatory drawing which shows the state which pulled out the optical component storage case shown in FIG. 1 from the rack. It is explanatory drawing which shows the state which accommodated the optical component storage case shown in FIG. 1 in the rack. It is explanatory drawing which shows the state which pulled out the optical component storage case shown in FIG. 1 from the rack. It is explanatory drawing which shows operation which accommodates the optical component storage case shown in FIG. 1 in a rack. It is explanatory drawing which shows operation which accommodates the optical component storage case shown in FIG. 1 in a rack. It is explanatory drawing which shows operation which accommodates the optical component storage case shown in FIG. 1 in a rack. It is explanatory drawing which shows the state which pulled out the optical component storage case shown in FIG. 1 from the rack. It is a front view which shows the other example of the optical component storage case used for an example of the optical wiring unit of this invention. It is explanatory drawing which shows the example of an internal structure of the optical component storage case shown in FIG. It is a front view which shows the other example of the optical component storage case used for an example of the optical wiring unit of this invention. It is explanatory drawing which shows the example of an internal structure of the optical component storage case shown in FIG. It is a front view which shows the other example of the optical component storage case used for an example of the optical wiring unit of this invention. It is explanatory drawing which shows the example of an internal structure of the optical component storage case shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10, 100, 110, 120 ... Optical component storage case 11, 101, 111, 121 ... Storage case main body, 12 ... Front end surface, 13 ... 1st connection part, 18 ... Key convex part (uneven part), 20 ... Handle part, 21 ... handle part main body, 23 ... handle extension part, 30 ... first latch, 32 ... first front extension part (first one extension part), 34 ... first front locking convex part (first 1. One locking projection), 40 ... second latch, 60 ... rack, 65, 66 ... insertion opening, 73 ... key recess (uneven portion).

Claims (5)

An optical wiring unit comprising an optical component storage case having a connection portion to which an optical connector is connected on one end face, and a rack for storing the optical component storage case,
The optical component storage case includes a storage case body in which the connection portion is formed,
A handle formed to protrude from the storage case body;
A first latch that latches to the rack at a storage position where the storage case body is stored in the rack;
A second latch that engages with the rack at a drawer position where the storage case body is pulled out from the storage position to the one side;
The first latch includes a first base and a first other extension extending from the first base to the other direction opposite to the one, and the first other extension includes the pull-out position. The first other locking projection that can be locked to the rack from the one side is formed,
The second latch includes a second base portion formed on the other side of the first base portion, and a second one extension portion extending from the second base portion to the one side, and the second one extension portion includes , A second one locking projection that can be locked to the rack from the other side at the extended position is formed,
The first other extension portion is elastically deformed toward the storage case main body, and the second one extension portion is pressed and elastically deformed, whereby the first other engagement protrusion and the second one engagement portion. An optical wiring unit characterized in that the movement restriction of either the one or the other of the storage case main body from the pulling-out position can be released by displacing the locking projection to release the locking to the rack. . The first latch has a first one locking projection that can be locked to the rack from the other side in the storage position;
The handle portion has a handle portion main body protruding from the storage case main body, and a handle extending portion extending from the handle portion main body to the other side.
The handle extending portion is elastically deformed toward the storage case body, and can press the first latch to displace the first one locking projection to release the locking to the rack.
The second latch has a second other locking projection that can be locked to the rack from the one side in the storage position,
The storage case main body is formed with a pressing portion having a pressing portion base formed on the other side of the second latch and a pressing extension portion extending from the pressing portion base to the one side.
The pressing extension portion can be elastically deformed toward the storage case main body, thereby pressing the second latch and displacing the second other locking projection to release the locking to the rack. The optical wiring unit according to claim 1. The second latch includes a second other extension portion extending from the second base portion to the other side, and the second other extension projection portion is formed with the second other locking protrusion.
The second other locking projection is displaced when the second other extension is pressed against the pressing extension and is elastically deformed to release the locking to the rack. The movement restriction from the storage position to the other is released,
The first latch includes a first one extending portion that extends from the first base to the one side, and the first one extending protrusion is formed with the first one locking protrusion.
The first one-projection protruding portion is displaced by the first one-extension portion being pressed by the handle extension portion and elastically deforming to release the latch to the rack. The optical wiring unit according to claim 2, wherein the restriction on movement from the storage position to the one side is released . The rack includes a plate on one side and a plate on the other side provided on the other side.
The locking position of the first one locking projection with respect to the rack is the one side plate, and the locking position of the second other locking projection with respect to the rack is the other side plate. The optical wiring unit according to claim 2 or 3. The other surface of the first one locking projection is an inclined surface that gradually approaches the storage case body toward the other,
5. The optical wiring according to claim 2 , wherein one surface of the second other locking projection is an inclined surface that gradually moves away from the storage case body toward the other. unit.

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