JP2006047919A - Optical transceiver and optical transceiver holding mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical transceiver and an optical transceiver holding mechanism with which the play of an optical connector is eliminated. <P>SOLUTION: The optical transceiver 201 has an optical connector insertion hole 202 for inserting the optical connector 101 and an optical connection part 203 is provided in the optical connector insertion hole 202 for optically connecting the light incident/emitting part 102 of the end of the optical connector 101. The length from an entrance 204 of the optical connector insertion hole 202 to the optical connection part 203 is longer than the overall length of the optical connector 101, and thus the optical connector 101 does not run off the optical transceiver 201. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mechanism for mounting an optical system on a communication device that performs optical communication, and relates to an optical transceiver and an optical transceiver holding mechanism that eliminate wobbling of an optical connector.

  A communication device that performs optical communication incorporates an optical transceiver that is connected to an optical fiber that is a communication path with the outside and is in charge of optical communication. The optical transceiver is not incorporated in the communication device in a fixed manner, but is provided with a window in the communication device, and the optical transceiver is inserted into the window for use. As a result, the optical transceiver can be appropriately replaced in response to a failure of the optical transceiver and various communication specifications.

  As shown in FIGS. 7A and 7B, a one-sided opening container called a cage 501 for accommodating the optical transceiver 301 is provided, and a connection terminal (for electrical connection) is provided at the back of the cage 501. Although not visible in the figure, the area indicated by the arrow 502 is provided. The optical transceiver 301 accommodates optical elements and electronic circuits necessary for optical transmission and reception in a substantially rectangular parallelepiped transceiver body, and a connection terminal (insertion side) for electrical connection is provided at one end of the transceiver body. If the optical transceiver 301 is inserted into the cage 501 through the window, the connection terminals are electrically connected to each other, and the communication device and the transceiver 301 can transmit information to each other.

  On the other hand, the optical fiber 601 serving as a communication path is not fixedly connected to the optical transceiver 301, but an optical connector insertion hole 302 is provided in the optical transceiver 301, and the optical connector 101 attached to one end of the optical fiber 601 is connected. The optical connector is inserted into the optical connector insertion hole 302 for use. The entrance 304 of the optical connector insertion hole 302 is provided at the end opposite to the connection terminal for electrical connection so that the optical connector 101 can be inserted into the optical transceiver 301 in a state where the optical transceiver 301 is inserted into a communication device. The illustrated optical transceiver 301 includes two optical connector insertion holes 302 arranged side by side to connect two optical fibers 601 for transmission and reception, and each optical connector insertion hole 302 has an optical connector. 101 is inserted.

  As shown in FIG. 8, the optical connector 101 is formed in a cylindrical or rectangular tube shape having an appropriate length. Although not shown, the optical connector 101 has an optical fiber end, a lens, and the like. A light incident / exit section 102 is formed. The optical axis faces the optical connector 101. The optical connector insertion hole 302 of the optical transceiver 301 has a depth shorter than the total length L of the optical connector 101. Here, the depth refers to the length lc from the entrance 304 of the optical connector insertion hole 302 to the optical coupling portion 303. Although not shown, the optical coupling unit 303 is provided with a lens, a light emitting element, and a light receiving element, and the optical axes of the optical coupling unit 303 and the light incident / exiting unit 102 are matched.

Japanese Patent Laid-Open No. 2001-91795

  In the prior art, the depth of the optical connector insertion hole is shorter than the total length L of the optical connector. For this reason, as shown in FIG. 8, the portion on the proximal end side of the optical connector 101 protrudes from the optical transceiver 301. In addition, the depth of the cage 501 (see FIG. 7) that accommodates the optical transceiver 301 (from the cage entrance 503 to the connection terminal connection position 502) is also shorter than the total length L of the optical transceiver 301, and light from the surface of the communication device. The optical transceiver 301 is held in the cage 501 while a part of the transceiver 301 is out.

  As shown in FIG. 9, when any of the forces F <b> 1 to F <b> 4 is applied to the portion of the optical connector 101 protruding outward from the optical transceiver 301, a force is applied to the tip of the optical connector 101 inside the optical transceiver 301. F5 or F6 occurs. Since the force F5 or F6 is a lever force with an unspecified part of the optical connector as a fulcrum, even if the magnitudes of the forces F1 to F4 are weak, the magnitude of the force F5 or F6 increases. 101 or the optical transceiver 301 is damaged. Further, the vertical stroke generated on the proximal end side of the optical connector 101 by the forces F1 to F4 also causes the reverse vertical stroke (in the same direction in some cases) at the distal end portion. Since the optical connector 101 has a light incident / exit section at the tip of the optical connector and is optically coupled to the optical coupling section in the optical transceiver, if even a slight stroke occurs, the optical coupling is weakened and communication is adversely affected. There is a concern that The forces F1 to F4 are also generated by the weight of the optical connector 101 and the optical fiber 601, and are also generated by an unexpected accident in which an operator applies extra force during handling or hits an object. Further, in the drawing, the direction of the forces F1 to F6 is the vertical direction, but the problem is the same for the force applied in the side direction (direction intersecting the paper surface).

  As described above, since a part of the base end side of the optical connector protrudes out of the optical transceiver, there arises a problem of optical coupling fluctuation (referred to as wiggle) due to wobbling of the optical connector. On the other hand, if the diameter of the optical connector insertion hole is reduced to control wobble, it becomes difficult to insert and remove the optical connector, and the manufacturing error and clearance for absorbing the temperature expansion are lost. It is not preferable to reduce the diameter of the connector insertion hole. There is also an example in which wobble is not regulated and the optical transceiver is wobbled together with wobble that occurs in the optical connector so that optical coupling can be maintained. Because it is, it is not perfect.

  Accordingly, an object of the present invention is to provide an optical transceiver and an optical transceiver holding mechanism that solve the above-described problems and eliminate wobbling of the optical connector.

  In order to achieve the above object, an optical transceiver of the present invention has an optical connector insertion hole for inserting an optical connector, and optically couples with an optical input / output portion at the tip of the optical connector in the optical connector insertion hole. In the optical transceiver provided with the coupling portion, the length from the entrance of the optical connector insertion hole to the optical coupling portion is longer than the entire length of the optical connector.

  A guide hole is formed in parallel with the optical connector insertion hole, and a drawer member that is guided by the guide hole and can be pulled out / stored from the guide hole is provided. The drawer member is engaged with at least a part of the optical connector. An engaging portion is formed, and the optical connector may be inserted into the optical connector insertion hole in association with the drawer member guided into the guide hole.

  The optical connector is formed with a raised portion having a pressure receiving surface that protrudes toward the drawer member and faces the rear end of the optical connector, and the drawer member faces the pressure receiving surface as the engaging portion. An engagement surface may be formed.

  The raised portion is formed of a member having elasticity in the height direction of the raised portion, and a shoulder portion widened laterally is formed on the raised portion, and the optical connector insertion hole interferes with the shoulder portion. A compression wall that deforms the ridge in a direction in which the height of the ridge is reduced is provided, and a wall hole that restores the deformation of the bulge by releasing the shoulder in a part of the compression wall is formed, and the drawer The member is formed with an inclined pressing surface that is inclined with respect to the raised portion from the front end side of the optical connector and deforms the raised portion in a direction in which the height of the raised portion is lowered when the drawer member is pulled out. May be.

  You may comprise the said drawer member so that extraction from the said guide hole is possible.

  In the transceiver holding mechanism of the present invention, a window is provided in the communication device, a cage for accommodating the optical transceiver inserted from the window is provided in the communication device, and an optical connector is inserted into the optical transceiver. In the optical transceiver holding mechanism configured as described above, the depth of the cage is formed to be longer than a distance from the distal end of the optical transceiver to the proximal end portion of the optical connector by a predetermined value or more.

  A guide is provided in parallel with the cage, and an in-cage drawer member that can be drawn into and out of the window is provided along the guide. The optical connector is raised from the optical transceiver toward the guide. A raised portion having a pressure-receiving surface facing the rear end direction is formed; an engagement surface facing the pressure-receiving surface is formed on the drawer member in the cage; and the optical connector previously inserted in the optical transceiver is pulled out The optical transceiver may be guided to the back of the cage by pushing it into the cage with a member.

  The cage is provided with a mechanism for latching the optical transceiver when the optical transceiver is inserted all the way into the cage, and a button for releasing the latch mechanism is provided at the base end of the optical transceiver, The button may be operated from the outside of the cage entrance with a delatching lever.

  The present invention exhibits the following excellent effects.

  (1) No wobbling of the optical connector.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  The main object of the present invention is to prevent the base end portion of the optical connector that is a rigid body from protruding outward from the optical transceiver or from the window of the communication device. From the entrance to the base end, it is housed in an optical transceiver or in a communication device, and a highly flexible optical fiber protrudes from the entrance of the optical connector insertion hole or from the window. The force that causes the wobbling of the connector is no longer applied. This eliminates wobbling of the optical connector.

  There are two types of configurations for this purpose. One is an optical transceiver in which the depth of the optical connector insertion hole is larger than before, and the other is a communication device in which the depth of the cage is larger than before. . In any case, it is preferable to add a configuration for facilitating sending and pulling out the optical connector from the entrance or window. Each embodiment will be described below.

  As shown in FIG. 1, an optical transceiver 201 according to the present invention has an optical connector insertion hole 202 for inserting an optical connector 101, and an optical input at the tip of the optical connector 101 is inserted into the optical connector insertion hole 202. In the optical transceiver 201 provided with the optical coupling unit 203 that optically couples with the emitting unit 102, the length from the entrance 204 of the optical connector insertion hole 202 to the optical coupling unit 203 (hereinafter referred to as the depth of the optical connector insertion hole 202) is optical. The connector 101 is formed longer than the entire length.

  The object of the invention can be achieved if the depth of the optical connector insertion hole 202 is equal to the total length of the optical connector 101, but here, in consideration of a margin such as bending of the optical fiber, the la is larger than the total length L of the optical connector 101. Just made it longer. In the conventional configuration shown in FIG. 8, since the portion on the base end side of the optical connector 101 protrudes from the optical transceiver by lb, the depth of the optical connector insertion hole is L-lb. In the invention, the depth of the optical connector insertion hole 202 is L + la.

  The optical transceiver 201 according to the present invention forms a guide hole 205 in parallel with the optical connector insertion hole 202, and is provided with a drawer member 206 that is guided by the guide hole 205 and can be pulled out / stored from the guide hole 205. An engaging portion 207 that engages with at least a part of the optical connector 101 is formed in the drawer member 206, and the optical connector 101 enters the optical connector insertion hole 202 along with the drawer member 206 that is guided into the guide hole 205. It is supposed to be inserted. The guide hole 205 may be formed by making the upper wall of the optical transceiver 201 thicker than in the prior art. The drawer member 206 may protrude slightly from the guide hole 205 so that it can be picked up with a finger when it is housed in the guide hole 205 most deeply.

  It is arbitrary which part of the optical connector 101 is engaged with the engaging part 207, but in this embodiment, the optical connector 101 is provided with a raised part and engaged with the raised part. The part 207 is engaged. Furthermore, in this embodiment, the optical connector 101 has a raised portion 104 that has a pressure receiving surface 103 that protrudes toward the pull-out member 206 (upward in the drawing) and faces the rear end direction (leftward in the drawing) of the optical connector 101. The pull-out member 206 has an engaging surface 208 facing the pressure receiving surface 103 as an engaging portion 207 that engages with the raised portion 104.

  The structure of the raised portion 104 is arbitrary as long as it can engage with the engaging portion 207, but in this embodiment, a latch / delatching lever (hereinafter referred to as a lever) 105 that is conventionally provided in the optical connector 101. Is used for the raised portion 104 as it is.

  As shown in FIG. 2A, the lever 105 as the raised portion 104 is formed of a member having elasticity in the height direction of the raised portion (the vertical direction in the drawing). Specifically, a lever 106 is configured by forming a hinge 106 integrally with the optical connector 101 on the upper surface of the optical connector 101 and extending one end of the hinge 106 while inclining toward the rear end. That is, the lever 105 has elasticity in the height direction due to the spring property of the hinge 106. The lever 105 is formed with a shoulder 107 widened laterally. The shoulder 107 is intermediate between the pressure receiving surface 103 formed at the highest position of the lever 105 and the hinge 106, and is wider than the pressure receiving surface 103 in the side direction (direction perpendicular to the paper surface). . The optical connector insertion hole 202 is provided with a compression wall 209 that interferes with the shoulder 107 and deforms the lever 105 in a direction in which the height of the bulge is lowered. Further, the shoulder 107 is released to a part of the compression wall 209. A wall hole 210 that restores the deformation of the lever 105 is formed.

  Here, when attention is paid to the lever 105 in FIG. 2B, it can be seen that the shoulder 107 is compressed by the compression wall 209 and the lever 105 is in a low posture. When the optical connector 101 is inserted into the optical connector insertion hole 202 and the shoulder 107 reaches the compression wall 209, the lever 105 is compressed. When the optical connector 101 is inserted all the way into the optical connector insertion hole 202, the shoulder 107 is fitted into the wall hole 210, the lever 105 is raised, and the state shown in FIG. Thereafter, the optical connector 101 cannot be pulled out toward the entrance 204 unless the lever 105 is compressed. That is, the latch state is entered.

  The drawer member 206 is inclined with respect to the lever 105 from the front end side (right side in the drawing) of the optical connector 101, and is inclined to deform the lever 105 in a direction in which the height of the ridge is lowered when the drawer member 206 is pulled out. A pressing surface 211 is formed. Accordingly, the drawer member 206 is formed with a hollow portion sandwiched between the engagement surface 208 and the inclined pressing surface 211. The inclined pressing surface 211 hits against the back side portion of the pressure receiving surface 103 of the lever 105 and compresses the lever 105. This portion is conventionally a portion that the operator presses downward with a finger. In the present invention, the lever 105 is pushed down by pulling out the drawer member 206 and causing the inclined pressing surface 211 to ride on the lever 105. When the lever 105 is compressed, the shoulder 107 is detached from the wall hole 210 and the optical connector 101 can be pulled out. That is, the state is delatched.

  The manner in which the optical connector 101 is inserted into the optical transceiver 201 in FIG. 1 will be described. First, as shown in FIG. 3, the pullout member 206 is pulled out from the guide hole 205 and the hollow portion with the engaging portion 207 is optical. It should be outside the transceiver 201. The tip of the optical connector 101 is applied to the entrance 204 of the optical connector insertion hole 202, and the lever 105 is engaged with the engaging portion 207. As a result, the engagement surface 208 of the pull-out member 206 contacts the pressure receiving surface 103 of the lever 105. Therefore, when the drawer member 206 is pushed into the guide hole 205, the optical connector 101 is also inserted into the optical connector insertion hole 202 together. When the lever 105 enters from the entrance 204 and the shoulder 107 reaches the compression wall 209, the shoulder 107 is compressed by the compression wall 209 and the lever 105 is lowered, but the pressure receiving surface 103 extends from the engagement surface 208. Since it does not come off, if the drawer member 206 is continuously pushed into the guide hole 205, the optical connector 101 is also pushed into the optical connector insertion hole 202. When the shoulder 107 reaches the wall hole 210, the above-described latch state is obtained. Conventionally, this latch state is generated at the position of the optical connector 101 when the optical coupling is achieved when the light incident / exiting portion 102 at the tip of the optical connector 101 reaches the optical coupling portion 203. Therefore, the latch and the optical coupling can be achieved only by pushing the drawing member 206 into the guide hole 205.

  At this time, as shown in FIG. 1, the optical connector 101 is entirely accommodated in the optical transceiver 201 from the distal end portion to the proximal end portion, and a highly flexible optical fiber 601 is formed from the entrance 204 of the optical connector insertion hole 202. It will be in the state where it is hanging out. Therefore, the force that causes the wobble is not applied to the optical connector 101. 4 is a perspective view of the state of FIG. 1 (drawing member 206 is omitted). As is apparent from this appearance, the optical connector that is completely in the optical transceiver 201 is not subjected to force even if an accident occurs.

  As shown in FIGS. 1, 2 (a) and 2 (b), when the optical connector 101 is to be extracted, the drawer member 206 is pulled out from the guide hole 205. When the pull-out member 206 is pulled out, when the inclined pressing surface 211 compresses the lever 105, the shoulder 107 is detached from the wall hole 210 and enters the delatching state described above. Since there is nothing that holds the optical connector 101 in the delatched state, the optical connector 101 can be pulled out by simply pulling out the optical fiber 601 together with the pull-out member 206 from the outside of the entrance 204.

  The drawer member 206 may be provided with a stopper so that the entire length of the drawer member 206 cannot be pulled out from the guide hole 205, or may be separated from the optical transceiver by being pulled out. Since the optical connector 101 cannot be inserted when the drawer member 206 is removed, only an operator holding the drawer member 206 can insert the optical connector 101, and an unqualified person inserts the optical connector 101. It is prevented.

  Next, as shown in FIG. 5, in the transceiver holding mechanism according to the present invention, a window 403 is provided on the front panel 402 of the communication device 401, and the communication device 401 is mounted on the substrate 404 and inserted through the window 403. In the optical transceiver holding mechanism in which the optical connector 101 is inserted into the front optical transceiver 301, the depth D of the cage 405 is changed from the front end of the optical transceiver 301 to the optical connector 101. It is formed longer than the distance d to the base end by a predetermined value or more. Although not shown, the optical transceiver 301 has a connection terminal (insertion side) for electrical connection and a connection terminal (reception side) for electrical connection at the back of the cage 405. The terminals fit together. The tip position of the optical transceiver 301 when this fitting is performed is the innermost depth D of the cage 405.

  In this embodiment, the optical connector 101 has a conventional configuration. The optical transceiver 301 is also a conventional button latch type (details will be described later).

  A guide 406 is provided in the cage 405 in parallel with the cage 405. The cage 405 is made of a metal plate for the purpose of preventing unnecessary radiation, but the guide 406 is not limited to metal. An in-cage drawer member 407 is provided along the guide 406 so as to be drawn into / out of the window 403. The optical connector 101 is formed with a raised portion 104 having a pressure receiving surface 103 that protrudes from the optical transceiver 301 toward the guide 406 and faces toward the rear end of the optical connector 101. This raised portion 104 uses a latch / delatching lever 105 that is conventionally provided in the optical connector 101 as it is. Similar to the engagement surface 208 described in the configuration of FIG. 2, an engagement surface 408 that faces the pressure receiving surface 103 is formed on the in-cage drawer member 407.

  The state of inserting the optical transceiver 301 and the optical connector 101 of FIG. 5 into the communication device 401 will be described. First, as shown in FIG. 6, the optical connector 101 is inserted into the optical transceiver 301 in advance. Since both the optical transceiver 301 and the optical connector 101 have the conventional configuration, the optical connector 101 is latched by the optical transceiver 301 with a part protruding from the optical transceiver 301. The in-cage drawer member 407 is pulled out from the guide 406 so that the portion of the engagement surface 408 is out of the communication device 401. While the tip of the optical transceiver 301 is positioned in the window 403 of the communication device 401, the optical transceiver 301 is brought into contact with the pressure receiving surface 103 of the lever 105 against the engagement surface 408 of the in-cage drawer member 407. When the in-cage drawer member 407 is pushed into the guide 406, the optical connector 101 and the optical transceiver 301 are inserted into the cage 405 in the communication device 401 together. In this way, the optical transceiver 301 is guided to the innermost depth D of the cage 405, and the connection terminals for electrical connection are fitted.

  At this time, the optical connector 101 is entirely accommodated in the communication device 401 up to the base end portion, and a highly flexible optical fiber protrudes from the window 403. Therefore, the force that causes the wobble is not applied to the optical connector 101.

  Next, the operation when the optical transceiver 301 and the optical connector 101 are disconnected from the state of FIG. 5 will be described.

  First, a latch / delatching mechanism of a button latch type optical transceiver will be described as a premise. FIG. 12 shows the appearance of a button latch type optical transceiver. A button 1201 is provided below the entrance 304 of the optical connector insertion hole 302 at the base end of the optical transceiver 301.

  As shown in FIG. 13, the button 1201 extends for an appropriate length toward the distal end of the optical transceiver 301. The button 1201 can be slid toward the tip of the optical transceiver 301. On the other hand, a latching protrusion 1202 protruding downward is provided on the lower surface of the optical transceiver 301. This latching projection 1202 is adapted to fit into a projection receiving hole on the lower surface of the cage (not shown). The protrusion receiving hole is provided in the leaf spring (not shown) by cutting a part of the metal plate constituting the cage to form a leaf spring.

  As shown in FIG. 14, the tip of the button 1201 is tapered, and when the button 1201 slides, a leaf spring is generated at the tapered tip. When the leaf spring occurs, the latching projection 1202 can be removed from the projection receiving hole.

  As described above, there is a conventional technique in which when the button 1201 is pushed, the latch is released and the optical transceiver 301 can be taken out of the cage.

  Further, as shown in FIG. 15A, a connection terminal (inserted side) 1501 for electrical connection is accommodated in the back of the cage 501 of the prior art, and a leaf spring 1502 is attached to the innermost wall. It has been. As shown in FIG. 15B, the leaf spring 1502 has a free end raised toward the optical transceiver insertion port 1503.

  As shown in FIG. 16A, when the optical transceiver 301 is inserted into the cage 501 and the connection terminal 1603 of the optical transceiver 301 is securely brought into contact with the connection terminal 1501 of the cage 501, the leaf spring 1502 is biased. The However, at the same time, the latching projection 1202 fits into the projection receiving hole 1601, so that the optical transceiver 301 is latched.

  Here, since the button 1201 is out of the front panel 402, the button 1201 can be slid with a finger. When the button 1201 is slid, the tip of the button 1201 opens the leaf spring 1602 and the latching projection 1202 comes out of the projection receiving hole 1601. At that time, the leaf spring 1502 pushes back the optical transceiver 301, and the state shown in FIG. In this state, even if the force for sliding the button 1201 is lost, the state shown in FIG. Thereafter, as shown in FIG. 16C, the optical transceiver 301 comes out of the cage 501 by pulling the optical fiber 601, the optical connector 101, or the optical transceiver 301.

  Based on the above, FIG. 17 is a diagram in which the back of the cage of the present invention (the tip of the optical transceiver) and the latch / delatching mechanism in the state of FIG. 5 are added to FIG.

  As shown in FIG. 17, in the transceiver holding mechanism according to the present invention, the depth of the cage 405 is formed longer than the distance from the distal end of the optical transceiver 301 to the proximal end of the optical connector 101 by a predetermined value or more. . The entrance of the cage 405 opens in the vicinity of the window 403 of the front panel 402, but the depth of the cage 405 is deeper than that of the cage 501 in FIG. The optical transceiver 301 has a connection terminal (insertion side) 1603 for electrical connection at the tip of the optical transceiver 301, and a connection terminal (reception side) 1501 for electrical connection at the back of the cage 405. It is designed to fit. In this state, the leaf spring 1502 is biased. A latching projection 1202 is fitted in the projection receiving hole 1601. Further, the latch / delatching lever 1701 provided in the optical connector 101 is pushed into the guide 406 while the cage pull-out member 407 is in the same latched state as in FIG.

  In the state of FIG. 17, the optical transceiver 301 is latched in the cage 405. To cancel this, the button 1201 must be pressed. However, unlike the conventional cage structure seen in FIG. 16, the button 1201 is located inside the front panel 402 because the depth of the cage 405 is large. Therefore, as shown in FIG. 18, in the present invention, a delatching rail 1801 is provided at the lower portion of the cage 405. The delatching rail 1801 is provided with ribs 1802 for supporting and sliding the bottom surface of the optical transceiver 301 on both sides of the button 1201 and a groove 1803 between the ribs 1802. A delatching lever described later is inserted into the groove 1803.

  As shown in FIG. 19A, the delatching lever 1901 is a bar or plate having an appropriate length inserted into the groove 1803 described above. When the delatching lever 1901 is inserted, the delatching lever 1901 reaches the button 1201 as shown in FIG. 19B, and when further pushed, the latch of the cage 405 is released. This is as described in FIG.

  Thereafter, when the force to push the delatching lever 1901 is removed, the leaf spring 1502 pushes back the optical transceiver 301, and the state shown in FIG. When the optical transceiver 301 is pushed back, the optical connector 101 and the in-cage drawer member 407 integrated with the optical transceiver 301 are pushed back by the same amount. In this state, the delatching lever 1901 becomes unnecessary and is removed.

  Next, in FIG. 20, if the in-cage drawer member 407 or the optical fiber 601 is pulled out, the optical connector 101 and the optical transceiver 301 integrated therewith can be pulled out.

  Next, an embodiment using a latching member and a delatching member in the optical transceiver of the present invention will be described.

  As shown in FIG. 10, the delatching member 1001 is a plate-like member that is formed separately from the optical transceiver 201 and is guided into the guide hole 205 of the optical transceiver 201 and can be inserted into the guide hole 205. A downwardly inclined surface 1002 is formed at the tip. The other members are the same as in FIG.

  When the delatching member 1001 is inserted into the guide hole 205, the inclined surface 1002 hits the top 111 of the raised portion 104, and the top 111 is pressed downward. As a result, as already described with reference to FIG. 2, the shoulder 107 is detached from the wall hole 210 and is in a delatched state. Thereafter, the optical connector 101 can be removed by pulling the optical fiber 601 lightly.

  The delatching member 1001 may be managed by an operator when not in use, and an unqualified person who does not have the delatching member 1001 is prevented from removing the optical connector 101.

  As shown in FIG. 11, the latching member 1003 is a plate-like member that is formed separately from the optical transceiver 201 and is guided by the guide hole 205 of the optical transceiver 201 and can be inserted into the guide hole 205. A facing surface 1004 facing the pressure receiving surface 103 is formed at the tip. The other members are the same as in FIG.

  When the optical connector 101 is inserted into the optical connector insertion hole 202, the latch member 1003 is inserted into the guide hole 205 together. Even if the optical connector 101 is inserted alone, the pressing force cannot be applied to the optical connector 101 when entering the depth to some extent, but when the latch member 1003 is attached, the facing surface 1004 presses the pressure receiving surface 103. Therefore, the optical connector 101 can be advanced to the back. As described above with reference to FIG. 2, the shoulder 107 is compressed by the compression wall 209 and the lever 105 is lowered, but the pressure receiving surface 103 is disengaged from the facing surface 1004 (corresponding to the engaging surface 208 in FIG. 2). Therefore, if the latch member 1003 is continuously pushed into the guide hole 205, the optical connector 101 is also pushed into the optical connector insertion hole 202, and latching is achieved.

  The latch member 1003 may be managed by an operator when not in use, and an unqualified person who does not have the latch member 1003 is prevented from inserting the optical connector 101.

It is a sectional side view of the optical transceiver which shows one Embodiment of this invention. 2A and 2B are enlarged views of a main part of the optical transceiver in FIG. 1, in which FIG. FIG. 2 is a side sectional view of the optical transceiver of FIG. 1 when pulled out. It is an external appearance perspective view of the optical transceiver of FIG. It is a sectional side view of the optical transceiver holding mechanism which shows one Embodiment of this invention. FIG. 6 is a side sectional view of the optical transceiver holding mechanism of FIG. 5 when pulled out. It is an external appearance perspective view of the conventional optical transceiver, (a) represents the time of optical connector insertion, (b) represents the time of optical connector non-insertion. It is a sectional side view of the conventional optical transceiver. It is a sectional side view of the conventional optical transceiver. It is a sectional side view of the optical transceiver holding mechanism which shows one Embodiment of this invention. FIG. 11 is a side sectional view of the optical transceiver holding mechanism of FIG. 10 when pulled out. FIG. 6 is a perspective view of a button latch type optical transceiver used in the optical transceiver holding mechanism of FIG. 5. It is a side view of the optical transceiver of FIG. It is a side view at the time of button push of the optical transceiver of FIG. (A) is a sectional side view of a conventional cage, (b) is a plan sectional view of a conventional cage. (A), (b), (c) is a sectional side view at different timing when the optical transceiver of FIG. 12 is inserted into and extracted from the conventional cage. FIG. 6 is a detailed side sectional view of the optical transceiver holding mechanism of FIG. 5. FIG. 18 is a perspective view of a cage entrance portion of the optical transceiver holding mechanism of FIG. 17. (A), (b), (c) is a sectional side view in a different timing when an optical transceiver is pulled out by the optical transceiver holding mechanism of FIG. FIG. 20 is a side sectional view of the optical transceiver holding mechanism of FIG. 17 at the timing after FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 101 Optical connector 102 Light entrance / exit part 103 Pressure receiving surface 104 Raised part 105 Lever 201 Optical transceiver 202 Optical connector insertion hole 203 Optical coupling part 204 Entrance 205 Guide hole 206 Pull-out member 207 Engagement part 208 Engagement surface 209 Compression wall 210 Wall hole 211 Inclined pressing surface 405 Cage 406 Guide 407 Cage drawer member

Claims (8)

  In an optical transceiver having an optical connector insertion hole for inserting an optical connector, and an optical coupling portion that optically couples with an optical input / output portion at the tip of the optical connector in the optical connector insertion hole, the optical connector insertion hole An optical transceiver characterized in that the length from the entrance to the optical coupling portion is longer than the total length of the optical connector.   A guide hole is formed in parallel with the optical connector insertion hole, and a drawer member that is guided by the guide hole and can be pulled out / stored from the guide hole is provided. The drawer member is engaged with at least a part of the optical connector. 2. The light according to claim 1, wherein an engaging portion is formed, and the optical connector is inserted into the optical connector insertion hole in association with the drawer member guided into the guide hole. Transceiver.   The optical connector is formed with a raised portion having a pressure receiving surface that protrudes toward the drawer member and faces the rear end of the optical connector, and the drawer member faces the pressure receiving surface as the engaging portion. The optical transceiver according to claim 2, wherein an engagement surface is formed.   The raised portion is formed of a member having elasticity in the height direction of the raised portion, and a shoulder portion widened laterally is formed on the raised portion, and the optical connector insertion hole interferes with the shoulder portion. A compression wall that deforms the ridge in a direction in which the height of the ridge is reduced is provided, and a wall hole that restores the deformation of the bulge by releasing the shoulder in a part of the compression wall is formed, and the drawer The member is formed with an inclined pressing surface that is inclined with respect to the raised portion from the front end side of the optical connector and deforms the raised portion in a direction in which the height of the raised portion is lowered when the drawer member is pulled out. The optical transceiver according to claim 3.   The optical transceiver according to claim 2, wherein the drawer member is configured to be able to be extracted from the guide hole.   In the optical transceiver holding mechanism in which a window is provided in the communication device, a cage is provided in the communication device to accommodate the optical transceiver inserted from the window, and an optical connector is inserted into the optical transceiver. A transceiver holding mechanism, wherein a depth of the cage is formed to be longer than a predetermined value by a distance from a distal end of the optical transceiver to a proximal end portion of the optical connector.   A guide is provided in parallel with the cage, and an in-cage drawer member that can be drawn into and out of the window is provided along the guide. The optical connector is raised from the optical transceiver toward the guide. A raised portion having a pressure-receiving surface facing the rear end direction is formed; an engagement surface facing the pressure-receiving surface is formed on the drawer member in the cage; and the optical connector previously inserted in the optical transceiver is pulled out 7. The transceiver holding mechanism according to claim 6, wherein the optical transceiver is guided to the back of the cage by being pushed into the cage by a member. The cage is provided with a mechanism for latching the optical transceiver when the optical transceiver is inserted all the way into the cage, and a button for releasing the latch mechanism is provided at the base end of the optical transceiver, 8. The transceiver holding mechanism according to claim 6, wherein the button is operated by a delatching lever from outside the entrance of the cage.

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