Latch lock and lock pin used for this latch lock

Abstract

To make a latch lock installed on a cabinet inoperable to be unlocked from the outside.SOLUTION: A latch lock 10, which is placed on an exterior panel 3 to secure the exterior panel 3 to a main frame 2 of a cabinet 1, includes a latch bolt 12 that can move in and out from a lock case 11 and an operating lever 13 that operates in and out of the latch bolt 12. A small hole 12a is provided in the latch bolt 12, and inserting a lock pin 14 into the small hole 12a prevents the latch bolt 12 from being retracted into the lock case 11.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a latch lock for fixing an exterior panel of a cabinet to a main body frame, and a lock pin used in the latch lock. [Background technology]

[0002] For example, in the case of a cabinet for storing electronic devices, latch locks are attached to exterior panels such as side panels and back panels, and the latch locks are designed to engage with receiving parts on the main frame so that the exterior panels can be easily removed after installation for maintenance of the stored items such as servers (Patent Document 1).

[0003] An example of a latch lock that can be attached to such a cabinet is described in Patent Document 2. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-280771 [Patent Document 2] Japanese Patent Application Laid-Open No. 2002-4686 Summary of the Invention [Problem to be solved by the invention]

[0005] In recent years, the leakage of personal information to the outside has become a problem, and although access to electronic devices inside the cabinet is originally limited to authorized personnel, as part of further strengthening security, there is a demand to make the exterior panels of the cabinet difficult to open.

[0006] For this reason, cabinets for storing electronic devices and the like are now mainly ones whose exterior panels cannot be easily removed.

[0007] However, many of the cabinets currently in use have exterior panels that can be easily removed by unlocking the latch locks, which poses a security problem. However, replacing all of these cabinets with cabinets whose exterior panels cannot be easily removed would be extremely costly and would take a lot of time to complete.

[0008] Therefore, an object of the present invention is to provide a latch lock that can easily turn a cabinet into one whose exterior panels cannot be easily removed without replacing the cabinet, and a lock pin to be used with this latch lock. [Means for solving the problem]

[0009] In order to solve the above problem, the invention of claim 1 provides a latch lock that is disposed on an exterior panel to fix the exterior panel to the main body frame of a cabinet. Lock pins used in And, The latch lock is The latch bolt is retractable from the lock case, and the operating lever operates the retraction and retraction of the latch bolt. was established small hole Difference Insert be captured By The aforementioned Latch bolt The aforementioned Prevents the lock from being pulled into the lock case The support rods are formed at both ends of a support rod that is formed to a length that, when inserted through the front opening of the cabinet, reaches the small hole of the latch bolt of the latch lock located at the farthest side of the latch locks fixed to the exterior panel on the side surface, and after being inserted into the small hole, the middle part of the support rod is held on the inner surface of the exterior panel, and the support rods are formed to a length that can be inserted into the small holes of the latch bolts of the front and rear latch locks fixed to the exterior panel on the side surface, respectively. , characterized by: [Effects of the Invention]

[0012] According to the invention of claim 1, even in the case of an existing cabinet using a latch lock, by inserting a lock pin into the small hole of the latch bolt and preventing the latch bolt from being retracted into the lock case, the latch lock can be maintained in a locked state, making it impossible to remove the exterior panel from the main frame.

[0013] Furthermore, a small hole is formed in the latch bolt of an existing latch lock, and the latch bolt can be reliably prevented from being retracted with a simple structure in which a lock pin is inserted into this small hole.

[0014] This means that there is no need for a new latch lock with a locking mechanism to lock the latch bolt's in and out movement; simply modifying an existing latch lock makes it possible to lock the latch bolt and prevent the exterior panel from being removed from the outside.

[0015] Claim 1 According to the invention, the lock pin is formed at the tip of a support rod that is long enough to reach the small hole of the latch bolt of the latch lock located at the back when inserted through the front opening of the cabinet. Therefore, after opening the front opening door, the lock pin can be inserted into the small hole of the latch bolt at the back even in a narrow space where electronic devices are placed, and the latch bolt can be easily locked without having to remove the electronic devices from inside the cabinet.

[0016] Furthermore, since the support rod that locks the latch bolt is held on the inner surface of the exterior panel, the locked state of the latch bolt can be maintained.

[0017] Claim 1 According to the invention, the support rod is formed at both ends and is formed to a length that allows it to be inserted into the small holes of the latch bolts of the front and rear latch locks fixed to the exterior panel on the side, so that two latch bolts can be locked simultaneously, thereby improving work efficiency. [Brief explanation of the drawings]

[0018] [Figure 1] 1 is an exploded perspective view showing a cabinet to which the present invention is applied, with exterior panels removed; [Figure 2] 3 and 4 show a latch lock according to an embodiment of the present invention, and this figure is a horizontal cross-sectional view showing a state in which the latch bolt protrudes from the latch case. [Figure 3] 3 is a horizontal cross-sectional view showing a state in which the operating lever is lifted and the latch bolt is retracted from the state shown in FIG. 2. FIG. [Figure 4] FIG. [Figure 5]FIG. [Figure 6] This is an internal view of the exterior panel (side panel) seen from the inside. DETAILED DESCRIPTION OF THE INVENTION

[0019] The present invention will be described below based on the illustrated embodiments.

[0020] (Embodiment 1) The cabinet 1 to which the latch lock 10 of this embodiment 1 is applied comprises, for example, a main body frame 2 assembled into a vertically elongated rectangular parallelepiped shape, exterior panels 3 covering both the left and right sides and the back of the main body frame 2, and a front opening door 4 for opening and closing the front opening.

[0021] The main body frame 2 is assembled into a vertically long rectangular parallelepiped shape by a bottom frame 5, four support columns 6, and a top frame 7 (see FIG. 1).

[0022] The exterior panels 3 on both the left and right sides are provided with latch locks 10 at four locations: two at the top left and right, and two at the top and bottom center left and right.

[0023] The latch lock 10 has a latch bolt 12 that moves in and out laterally relative to a rectangular lock case 11. When the latch bolt 12 protrudes (extending operation), it engages with a locking portion 6a formed on the support 6, thereby locking the latch lock 10, and when the latch bolt 12 retracts (inserting operation), it comes out of the locking portion 6a, thereby unlocking the latch lock.

[0024] A small hole 12a is formed at a position closer to the lock case 11 from the tip of the latch bolt 12, and a lock pin 14 can be inserted and removed into this small hole 12a.

[0025] The latch bolt 12 is moved in and out by an operating lever 13 provided on the surface of the lock case 11; when the operating lever 13 is raised, the latch bolt 12 is retracted (in operation), and when it is returned to its original position, the latch bolt 12 is protruded (out operation).

[0026] Such a latch lock 10 is fixed to the exterior panel 3 by fitting a lock case 11 from the outside into a latch lock mounting hole 3a formed in the exterior panel 3, and the elastic locking claw 11a provided on the lock case 11 overcomes the latch lock mounting hole 3a.

[0027] The cabinet 1 is constructed by incorporating the exterior panel 3, to which the latch lock 10 is attached, into the main body frame 2.

[0028] Specifically, the latch bolts 12 are retracted by raising the operating levers 13 of all of the latch locks 10 attached to the exterior panel 3 relative to the lock cases 11. Next, the exterior panel 3 is positioned so as to cover the space between the two support posts 6 of the main frame 2 and pressed toward the support posts, aligning the latch bolts 12 of the latch locks 10 with the locking portions 6a formed on the support posts, and then lowering (returning to their original state) the operating levers 13 of each latch lock 10, whereby the latch bolts 12 are locked with the locking portions 6a and the latch locks 10 are placed in a locked state, thereby attaching the exterior panel 3 to the support posts 6.

[0029] Furthermore, when the operating lever 13 of the latch lock 10 is raised while the exterior panel 3 is attached to the main frame 2, the latch bolt 12 is released from the engaging portion 6a of the support 6, and the exterior panel 3 can be removed from the main frame 2.

[0030] The latch lock 10 allows the exterior panel 3 to be easily removed, while a lock pin 14 is inserted into a small hole 12a of the latch bolt 12 to prevent access to the electronic equipment inside the cabinet 1.

[0031] The small hole 12a of the latch bolt 12 is a through hole, and the lock pin 14 has a head at the upper end to prevent it from slipping out of the small hole 12a. The upper end of the lock pin 14 may not have a head, but may be bent, for example, into an L-shape. The small hole 12a may also be a bottomed hole instead of a through hole.

[0032] By inserting a lock pin 14 into the small hole 12a of the latch bolt 12, even if an attempt is made to operate the operating lever 13, the lock pin 14 inserted into the latch bolt 12 gets caught on the lock case 11, making it impossible to retract the latch bolt 12, and therefore making it impossible to remove the exterior panel 3 from the main frame 2.

[0033] Specifically, when the latch lock 10 is in the locked state, the small hole 12a of the latch bolt 12 is located between the support post 6 and the lock case 12. By inserting the lock pin 14 from above into the small hole 12a of the latch bolt 12 in this state, the latch bolt 12 is locked. In other words, when the lock pin 14 is inserted into the small hole 12a of the latch bolt 12, the retracting action of the latch bolt 12 is prevented, and therefore the latch bolt 12 cannot come out of the locking hole 6a of the support post 6, and the locked state is maintained.

[0034] By maintaining the latch bolt 12 in the locked state, it is possible to prevent the exterior panel 3 from being removed from the outside.

[0035] According to the latch lock 10 of this embodiment 1, a small hole 12a is simply formed in the latch bolt 12 of the latch lock 10, so that it is only necessary to perform drilling on the existing latch lock 10, and there is no need to replace the cabinet 1 itself, nor is there any need to replace it with a new latch lock with a complex locking mechanism, making it possible to prevent removal from the outside of the exterior panel 3 in a time- and economically advantageous manner.

[0036] (Embodiment 2) In this second embodiment, the lock pin in the first embodiment is modified, and a lock pin 14a is formed at the tip (rear end) of a relatively long support rod 20.

[0037] Specifically, the lock pin 14a is formed integrally with the support rod 20, and the tip of the support rod 20 is bent into a hook shape (shown in the upper part of FIG. 6).

[0038] The latch lock 10 located on the back side of the exterior panels 3 located on the left and right sides from the front opening uses this support rod 20 to lock the door.

[0039] This is particularly used when the space between the left or right exterior panel 3 and the internal electronic device is narrow and it is difficult to reach the latch lock at the back.

[0040] The support rod 20 has a length that allows the lock pin 14a at its tip to be inserted into the small hole 12a of the latch bolt 12 of the latch lock 10 on the far side.

[0041] The tip of the support rod 20 is bent to fit along three faces of the lock case 11 of the latch lock 10 (the face on the latch bolt 12 side, the top face, and the face on the front side), and the tip functions as a lock pin 14a.

[0042] In addition, a holding means 21 for holding the support rod 20 on the inner surface of the exterior panel 3 is provided in the center of the length of the support rod 20, and after the lock pin 14a is inserted into the latch bolt 12, that state is maintained.

[0043] The holding means 21 may be such that the support rod 20 is hung on a hook attached to the inner surface of the exterior panel 3, or the support rod 20 may be attached to the exterior panel 3 with adhesive tape.

[0044] According to the lock pin 14a of this embodiment 2, when inserted from the front opening of the cabinet 1, it is formed at the tip of the support rod 20 which is formed to a length that reaches the small hole 12a of the latch bolt 12 of the latch lock 10 located at the rear side. Therefore, the lock pin 14 can be inserted into the small hole 12a of the latch bolt 12 at the rear side even in a narrow space where electronic devices are placed, and the latch bolt 12 can be easily locked without removing the electronic devices from inside the cabinet 1.

[0045] Furthermore, since the support rod 20 that locks the latch bolt 12 is held on the inner surface of the exterior panel 3, the locked state of the latch bolt 12 can be maintained.

[0046] (Embodiment 3) In this third embodiment, lock pins are formed on both ends of the support rod 20 in the second embodiment.

[0047] The support rod 20A in embodiment 3 has lock pins 14b integrally formed at both ends thereof, with the rear end lock pin 14b being inserted into the small hole 12a of the latch bolt 12 of the latch lock 10 on the rear side of the exterior panel 3, and the front end lock pin 14b being formed to a length that allows it to be inserted into the small hole 12a of the latch bolt 12 of the latch lock 10 on the front side of the exterior panel 3 (shown at the bottom in Figure 6).

[0048] Both ends of the support rod 20A are bent into a hook shape, and similar to the bending of the tip (rear end) of the support rod 20 in embodiment 2, they are bent to fit along the three faces of the lock case 11 of the latch lock 10 (the face on the latch bolt 12 side, the top face, and the front or rear face), and each of the ends functions as a lock pin 14b.

[0049] In addition, a holding means 21 for holding the support rod 20A on the inner surface of the exterior panel 3 is provided at the center of the length of the support rod 20A, and after the lock pins 14b are inserted into the latch bolts 12, that state is maintained.

[0050] As for the holding means 21, as in the above-mentioned second embodiment, the support rod 20A may be hung on a hook attached to the inner surface of the exterior panel 3, or the support rod 20A may be attached to the exterior panel 3 with adhesive tape.

[0051] According to the lock pin 14b of the third embodiment, since the lock pins 14b are formed on both ends of the support rod 20A, the balance between the front and rear is good and a stable locked state can be maintained.

[0052] The above describes the embodiments of the present invention, but the specific configuration is not limited to the above-mentioned embodiments, and even if there are design changes within the scope of the present invention that do not deviate from the gist of the present invention, they are included in the present invention.

[0053] For example, in the above embodiment, the latch bolt 12 of the latch lock 10 is of the seesaw type, but the present invention is not limited to this, and a slide type latch bolt may also be used. [Explanation of symbols]

[0054] 1 cabinet 2 Main frame 3 Exterior panels 10 Latch Lock 11 tablet cases 12 Latch bolt 12a small hole 13 Operating lever 14 Locking pin 20 Support rod 14a Locking pin 21 Holding means 20A support rod 14b Lock pin

Claims

[Claim 1] A lock pin used in a latch lock that is arranged on an exterior panel to fix the exterior panel to a main body frame of a cabinet, The latch lock has a latch bolt that can be inserted and removed from the lock case, and an operating lever that operates the insertion and removal of the latch bolt. By inserting the operating lever into a small hole provided in the latch bolt, the latch bolt is prevented from being retracted into the lock case. When the latch locks are inserted through the front opening of the cabinet, the support rod is formed at both ends of the support rod that is formed to a length that reaches the small hole of the latch bolt of the latch lock located at the back of the latch locks fixed to the exterior panel on the side surface, After being inserted into the small hole, the middle portion of the support rod is held by the inner surface of the exterior panel, The latch bolts of the front and rear latch locks fixed to the exterior panel on the side surface are formed to a length that can be inserted into the small holes, respectively. A lock pin characterized by:

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