JP2005146691A - Extraction preventive device for package and host apparatus with extraction prevention function - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an extraction prevention apparatus of a package and a host apparatus with extraction prevention function preventing extraction and drop out of incorrect package. <P>SOLUTION: In a package 1 having a package body 2 constituted to be freely inserted or extracted to a host apparatus and an engaging member 5 engaging with the host apparatus in a host apparatus when inserting and regulating extraction of the package body 2, a key member 21 provided with a protrusion 23 for removing the engaging member 5 engaging with the host apparatus is separately provided from the package body 2, a key hole 11 in/from which the key member 21 is inserted or extracted is formed in the package body 2. A space 13 where the protrusion can move from a posture with which the protrusion 23 does not interfere with the engaging member 5 to a posture in which the protrusion 23 interferes with the engaging member 5 to displace the engaging member 5, is formed in a part of the key hole 11. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a package provided with a lock mechanism, and more particularly to a package removal prevention device and a host device with a removal prevention function that prevent unauthorized removal and removal of the package.

  A host device that performs optical communication has a transceiver that is actually connected to the optical fiber and is in charge of optical communication (in the narrow sense, only interconversion between optical signals and electrical signals, including in a broad sense up to low-level protocol processing). Incorporated. Some of the transceivers are not fixedly incorporated in the host device, but are provided with a window in the host device and the transceiver is inserted into the window for use. As a result, the transceiver can be appropriately exchanged in response to the failure of the transceiver and various communication specifications.

  In the host device, a one-sided opening container called a cage for accommodating a transceiver inserted from a window is provided, and a connection terminal (receiving side) for electrical connection is provided at the back of the cage. The transceiver 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. When the transceiver is inserted into the cage through the window, the connection terminals are electrically connected to each other so that the host device and the transceiver can transmit information to each other.

  A member that incorporates an electronic circuit, such as a transceiver, and that can be incorporated in a host device is generally called a package.

  In recent years, there has been provided a hot-pluggable package in which the package can be attached and detached so that no inappropriate power is applied to the package and no power supply short-circuit occurs even when the host device is in operation.

  On the other hand, the package is provided with a lock mechanism so that the package detachable from the host device does not fall off due to accidental vibration or shock, and the electrical connection is maintained reliably. Specifically, when the package exists at a certain position for electrical connection by the connection terminal, the engagement member is displaced in a direction crossing the insertion direction and engages with a cage that is a part of the host device. Is provided in the package body. Since the engaging member is displaced in a direction crossing the direction of the package insertion and engages with the cage, the package is locked. When the package is extracted, it is sufficient that the engaging member is displaced in the opposite direction to a position where it does not engage with the cage.

  In order to perform an operation of displacing the engaging member from a position engaging with the cage to a position not engaging, a movable member is conventionally provided in the package. Since the engaging member is disposed at a deep position so as to engage with the cage, in order to operate the engaging member from outside the window of the host device, a part of the engaging member reaches the engaging member, and a part of the engaging member A movable member appearing outside is required.

US Pat. No. 6,439,918

  The above-described conventional locking mechanism is provided in order to prevent the package from dropping off due to accidental vibration or shock, and electrical connection is not uncertain, and can be unlocked by simple operation when replacing the package. . However, since it is a simple mechanism, the lock mechanism may be moved by strong vibration or impact, and the lock may be released.

  On the other hand, focusing on security, the package has problems of theft and diversion. Since the package is detachable from the host device, it can be easily stolen, and the security is low for the user. And if the stolen package is resold or diverted, profits and credibility are unjustly impaired for the manufacturer.

  Accordingly, an object of the present invention is to solve the above-described problems and provide a package removal prevention device and a host device with a removal prevention function that prevent unauthorized removal and removal of a package.

  In order to achieve the above object, an extraction preventing device of the present invention includes a package main body configured to be freely inserted into and extracted from a host device, and the package main body engaging with the host device in the host device at the time of insertion. A key member having a protrusion for removing the engaging member engaged with the host device is provided separately from the package main body. Forms a key hole for inserting and extracting the key member, and the projection interferes with the engagement member from a position where the projection does not interfere with the engagement member in a part of the key hole, thereby displacing the engagement member It forms a space that can be exercised up to the posture to be moved.

  Formed on the package body is a key stopper that interferes with the protrusion in a posture that interferes with the engagement member from the direction in which the key member is pulled out and does not interfere with the protrusion in a posture that does not interfere with the engagement member. May be.

  A spring that biases and holds the engaging member engaged with the host device may be provided.

  A convex portion is formed on the key member at a different distance from the protrusion for each individual key member, and a wall that interferes with the convex portion and restricts the movement of the key member is formed in the key hole. A recess that allows the movement of the key member is formed on the wall by separating the key hole from the movable space and separating the key hole by a distance corresponding to the convex portion, and accommodating the convex portion so as to be movable. Also good.

  The space in which the protrusion can move may be a space in which the protrusion can rotate around the key member, and the engaging member may be disposed in the rotatable space.

  The host device according to the present invention includes a one-sided open container having a fitting hole to be engaged with the engaging member while inserting and accommodating the package, and the package disposed at the back of the one-sided open container And a connection terminal to be electrically connected to the connection terminal.

  The present invention exhibits the following excellent effects.

  (1) If the key member is removed, it is possible to prevent unauthorized removal and dropping of the package.

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

  A side sectional view and a front view of a package according to the present invention are shown in FIG. 1, and a side view and a plan view of a key member according to the present invention are shown in FIG.

  As shown in FIG. 1, a package main body 2 as a housing of the package 1 is formed in a substantially rectangular parallelepiped and can be inserted into a box-shaped cage 3 having one end opened. FIG. 1 shows a state in which the package body 2 has already been inserted into the cage 3 and the locking mechanism is working. That is, the fitting hole 4 is provided on one side (here, the bottom surface) of the cage 3, and a part of the engaging member 5 in the package body 2 is fitted into the fitting hole 4. Since a part of the engagement member 5 is fitted in the insertion hole 4 and engaged with the cage 3, the package body 2 cannot be extracted. The direction of extraction is the left direction in the figure.

  The engaging member 5 is formed integrally with a flat plate 6 and a lock protrusion 7 protruding from the flat plate 6 toward the bottom of the cage 3. The flat plate 6 is attached to the package body 2 at a position in the back in the insertion direction via a rotary shaft 8 or a hinge, and receives a force directed downward from the cage 3 by a not-shown butterfly spring or plate spring. With this force, the state in which the lock protrusion 7 is fitted in the fitting hole 4 is maintained.

  The package body 2 is not entirely contained in the cage 3, but the tip end side (hereinafter referred to as the head portion 9) in the extraction direction protrudes from the opening of the cage. On the other hand, although not shown, a connection terminal (receiving side) for electrical connection is provided at the back of the cage 3, and a connection terminal (insertion) as a connection partner is provided at the distal end in the insertion direction of the package body 2. In the state of FIG. 1 in which the locking mechanism is working, the connection terminals are securely connected to each other.

  The cage 3 is provided inside a host device (not shown). There is a front panel of the host device around the arrow P in the figure, and the right side of the figure from the arrow P is inside the host device. A window is provided on the front panel of the host device, and the package 1 is inserted into the cage 3 through this window.

  Receptacles 10 and 10 for inserting transmitting and receiving optical fiber connectors are provided on the end face of the head 9 of the package 1. A keyhole 11 is provided below the receptacles 10 and 10. The opening shape of the key hole 11 substantially matches the cross section of the key member described later.

  As shown in FIG. 2, the key member 21 has a protrusion 23 protruding in one radial direction at the tip of an elongated shaft 22 and a handle 24 at the opposite end. The shaft 22 has a length that reaches from the tip of the head 9 of the package 1 of FIG. 1 to at least the flat plate 6 of the engaging member 5. When the key member 21 is inserted into the key hole 11, the protrusion 23 faces the lower surface of the flat plate 6 and becomes parallel, and the handle 24 remains outside the head 9. The handle 24 is flat and has an appropriate width so that the key member 21 can be handled by picking it with a fingertip.

  As can be seen from the front view of FIG. 1, the key hole 11 is configured such that the key member 21 is inserted into the key hole 11 with the protrusion 23 laid down horizontally.

  The key hole 11 has a low height at the tip of the head 9 of the package 1 so that the key member 21 with the protrusion 23 lying horizontally can pass through, and extends into the head 9 of the package 1 while maintaining the height. Although the key passage 12 is formed, the protrusion 23 spreads upward in the vicinity of the engaging member 5, and the protrusion 23 interferes with the engaging member 5 from a position where the protrusion 23 does not interfere with the engaging member 5. A space (hereinafter, referred to as a rotation chamber 13) that can move to a posture that displaces 5 is formed. A vertical wall parallel to the end face of the package 1 is formed at a position where the key passage 12 exits to the turning chamber 13. This vertical wall serves as a key stopper 14 that prevents the key member 21 from coming off the package 1.

  Next, the operation of the package according to the present invention will be described with reference to FIGS. Here, as shown in FIG. 1, it is assumed that the package 1 is locked and the key member 21 is removed first. As a first step, the key member 21 of FIG. 2 is inserted into the keyhole 11 of FIG. At this time, since the protrusion 23 is laid horizontally, the tip of the shaft 22 of the key member 21 sinks under the flat plate 6 and the protrusion 23 becomes parallel to the lower surface of the flat plate 6 as shown in FIG. In this state, the protrusion 23 does not interfere with the engaging member 5.

  In the second step, the key member 21 is rotated using the handle 24. When the key member 21 rotates, the protrusion 23 rises upward, so that the protrusion 23 interferes with the lower surface of the flat plate 6 that is a part of the engaging member 5.

  In the third step, the key member 2 is still rotated. As shown in FIG. 4, the protrusion 23 that contacts the flat plate 6 rises further, so that the flat plate 6 is lifted, and the entire engaging member 7 is lifted about the rotating shaft 8. Along with this, the lock projection 7 is detached from the fitting hole 4. That is, the package 1 is unlocked.

  In the fourth step, the key member 21 is pulled in the direction in which it is removed from the key hole 11. At this time, since the projection 23 is in a posture of being raised by interfering with the engaging member 5, it is higher than the height of the key passage 12, and when the key member 21 is pulled, the projection 23 interferes with the key stopper 14. . Therefore, the key member 21 cannot be removed from the package 1 any more, but the package 1 can be removed from the cage 3 because the lock with the cage 3 has already been released.

  Thereafter, the key member 21 can be removed from the package 1, but the operation is the same as the operation (described later) when the key member 21 is locked after the package 1 is inserted into the cage 3 and locked.

  Next, when the package 1 is inserted into the cage 3 and locked, the key member 21 is inserted into the package 1 in advance and the key member 21 is rotated in the same manner as in the third step so that the lock protrusion 7 is lowered from the package body 2. Keep it from protruding. When the package 1 is inserted into the cage 3 in this state, the lock protrusion 7 passes through the front edge of the cage 3 (approximately around the arrow P) and comes directly above the fitting hole 4. That is, the same state as in FIG.

  In the fifth step, the key member 21 is rotated in the reverse direction. Then, the protrusion 23 lies horizontally and becomes parallel to the lower surface of the flat plate 6.

  In the sixth step, the flat plate 6 returns to the original state by the force of the butterfly spring. Along with this, the lock projection 7 is fitted into the insertion hole 4, and the same state as in FIG. 3, that is, the state where the latch is achieved.

  In the seventh step, the key member 21 is extracted from the package 1. Since the protrusion 23 is horizontal and does not interfere with the engaging member 5, it is lower than the height of the key passage 12 and does not interfere with the key stopper 14. Therefore, the key member 21 comes out of the package 1. As a result, the state shown in FIG. 1 is restored.

  After the latch is achieved in this way, the package 1 is reliably electrically connected to the host device and locked, so that it can be used for communication with high reliability. On the other hand, the extracted key member 21 is stored by an operator (person who is qualified to extract the package).

  As described above, since the key member provided separately from the package body is inserted through the key hole to release the lock, the lock cannot be released if the key member is removed. Therefore, it is possible to prevent an unqualified user from extracting the package or easily stolen the package. In addition, since the member that moves the engaging member in the unlocking direction is not incorporated in the package as in the conventional case and is separated as a key member, the lock is released even when subjected to strong vibration or impact. There is nothing. In addition, the package can be prevented from dropping due to an accident.

  In the above embodiment, the attitude of the protrusion is changed by rotating the key member. However, the key member is not limited to rotation, and the protrusion may interfere with the engaging member by parallel movement or swing.

  Next, another embodiment of the present invention will be described.

  As shown in FIG. 5, the key member 21 a has a convex portion 51 formed at an appropriate distance from the protrusion 23 in addition to the configuration of the key member 21 of FIG. 2. The distance between the protrusions is made different for each individual key member 21a.

  On the other hand, as shown in FIG. 6, the package 1 a is formed with a wall 61 that restricts the movement of the key member 21 a by interfering with the convex portion 51 of the key member 21 a in the key hole 11 in addition to the configuration of the package 1 of FIG. 1. The protrusion 51 is movably accommodated in the wall 61 at a distance corresponding to the distance between the protrusions from the key stopper 14 which is the end of the movable space of the protrusion 23. A recess 62 that allows movement is formed. The distance between the key stopper recesses is different for each individual package 1a, and is matched only with the distance between the protrusions of the specific key member 21a. As a result, only the specific key member 21a can rotate in a one-to-one correspondence with the specific package 1a.

  The operation of this package shown in FIGS. 7 and 8 is almost the same as that described with reference to FIGS. 3 and 4. However, when the key member 21a is inserted into the key hole 11 as the first step, the projection 51 Is laid horizontally in the same manner as the protrusion 23. In the second and third steps, when the key member 21 a is rotated using the handle 24, the protrusion 51 rises upward and enters the recess 62 together with the protrusion 23 rising upward. If the convex part 51 is located in front of or behind the concave part 62 at this time, the convex part 51 interferes with the wall 61, so that the key member 21a cannot be rotated. Therefore, the protrusion 23 does not lift the flat plate 6 and the lock is not released. That is, only the key member 21a corresponding to the individual of the package 1a, that is, the matching key can be unlocked.

  According to this configuration, only a legitimate administrator who has a matching key can extract the package, and a user having the key member 21a having a different convex portion position cannot extract the package, so that security is further improved.

  Next, an embodiment in which the key member of the present invention is applied to a lock mechanism in which an engaging member is fixedly provided on the package body and a part of the cage is engaged with the engaging member will be described.

  As shown in the side sectional view of FIG. 9, the key hole 11 of the package 1c is formed with a bottom hole 91 for the protrusion 23 of the key member 21 to protrude below the bottom surface. It covers the bottom hole 91. A part of the back wall of the bottom hole 91 protrudes below the bottom surface of the package 1c to form an engagement member 92. Therefore, when the package 1c is viewed from the bottom, it can be seen that the bottom hole 91 and the triangular engagement member 92 are adjacent to each other. On the other hand, when viewed from the bottom, the cage is formed with a tongue 94 sandwiched between two notches 93. A triangular window 95 into which the engaging member 92 is fitted is formed in the tongue portion 94. The tongue portion 94 has only one side connected to the cage 3 and has flexibility (elasticity).

  As shown in FIG. 10, the key member 21c is substantially the same as the key member 21 of FIG.

  As shown in FIG. 11, since the engagement member 92 is fitted in the triangular window 95 of the tongue 94, the package 1c is locked. When the protrusion 23 is laid horizontally and the key member 21 c is inserted into the key hole 11, the protrusion 23 comes to a position facing the bottom hole 91. At this time, when the key member 21c is rotated using the handle 24, the projection 23 descends downward, so that the projection 23 pushes the tongue portion 94 downward as shown in FIG. 12, and the tongue portion 94 bends. It will be. When the engagement member 92 is removed from the triangular window 95, the lock is released, and when the key member 21c is pulled, the protrusion 23 is hooked on a part of the package 1c, so that the package 1c can be extracted. When the package 1c is extracted, the protrusion 23 that has pushed the tongue 94 escapes, so that the tongue 94 returns to its original position.

  Thereafter, when the package 1c is inserted, if the package 1c is pushed in a state where the package 1c is not in the key member 21c or the protrusion 23 is lying even if the key member 21c is inserted, the engaging member 92 is moved. The tongue 94 is pushed down by hitting the tip of the tongue 94. When the engaging member 92 comes to the triangular window 95, the bending of the tongue portion 94 is restored, and the engaging member 92 is fitted into the triangular window 95 to achieve locking.

  Even in this configuration, if the key member 21c is managed, the package 1c can be prevented from being removed.

It is the sectional side view and front view of a package which show one Embodiment of this invention. It is the side view and top view of a key member which show one Embodiment of this invention. FIG. 3 is a side sectional view in which the key member of FIG. 2 is inserted into the package of FIG. 1. FIG. 3 is a side sectional view in which the key member of FIG. 2 is inserted into the package of FIG. 1. It is the side view and top view of a key member which show one Embodiment of this invention. It is the sectional side view and front view of a package which show one Embodiment of this invention. FIG. 6 is a side sectional view of the package of FIG. 6 with the key member of FIG. 5 inserted. FIG. 6 is a side sectional view of the package of FIG. 6 with the key member of FIG. 5 inserted. It is a sectional side view, a front view, a package bottom view, and a cage bottom view of a package showing an embodiment of the present invention. It is the side view and top view of a key member which show one Embodiment of this invention. FIG. 11 is a side sectional view in which the key member of FIG. 10 is inserted into the package of FIG. 9. FIG. 11 is a side sectional view in which the key member of FIG. 10 is inserted into the package of FIG. 9.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Package 2 Package main body 3 Cage 4 Insertion hole 5 Engagement member 6 Flat plate 7 Lock protrusion 21 Key member 23 Projection

Claims (6)

  A package having a package body configured to be freely inserted into and removed from a host device, and an engagement member that engages the host device in the host device when inserted and restricts the removal of the package body. A key member provided with a protrusion for removing the engaging member engaged with the host device is provided separately from the package body, and a key hole for inserting and removing the key member is formed in the package body. A package in which a space is formed in a part of a key hole so that the protrusion can move from a position where the protrusion does not interfere with the engagement member to a position where the protrusion interferes with the engagement member and displaces the engagement member. Anti-extraction device.   Formed on the package body is a key stopper that interferes with the protrusion in a posture that interferes with the engagement member from the direction in which the key member is pulled out and does not interfere with the protrusion in a posture that does not interfere with the engagement member. The package extraction preventing apparatus according to claim 1, wherein:   3. The package removal preventing apparatus according to claim 1, further comprising a spring that biases and holds the engaging member in a state of being engaged with the host device.   A convex portion is formed on the key member at a different distance from the protrusion for each individual key member, and a wall that interferes with the convex portion and restricts the movement of the key member is formed in the key hole. A concave portion that allows movement of the key member is formed by accommodating the convex portion in a wall at a distance corresponding to the convex portion, which is different for each individual keyhole from the movable space of the convex portion. 4. The apparatus according to claim 1, wherein the package is prevented from being pulled out.   The space in which the protrusion can move is a space in which the protrusion can rotate around the key member, and the engaging member is disposed in the rotatable space. Or a package pull-out prevention device. Electrical connection between the one-sided open container having an insertion hole to be engaged with the engaging member while inserting and accommodating the package, and the connection terminal of the package disposed at the back of the one-sided open container A host device with a pull-out prevention function characterized by comprising a connection terminal as a counterpart.

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