KR20170143440A - Usb port locking device - Google Patents

Abstract

A USB port locking device makes it difficult to unlock a USB port to realize security with high reliability. In the USB port locking device (L), an insertion case (7) is inserted into a USB port to block the insertion case (7). The blocked state is locked by hooking a locking claw (811) protruding from a hole (73) of the insertion case (7) into a slit (92) of an outer frame (91) of the USB port. The locked state is maintained by a visible cylinder lock (2). When the insertion case (7) is drawn from the USB port, a dedicated key is inserted into a key hole (40) of the cylinder lock (2) to unlock the cylinder lock (2), and an inner cylinder (4) is pushed towards the insertion case (7) to unlock by an unlocking unit (41).

Description

USB Port Locking Device {USB PORT LOCKING DEVICE}

The present invention locks the insertion case by inserting the insertion case into a USB (Universal Serial Bus) port (car entrance) installed in a PC or the like, locks the lock claw provided in the insertion case to the slit of the outer frame of the USB port, To a USB port lock device that prevents access to the USB port and prevents leakage of information.

Today, the spread of PCs is rapidly spreading, and various information is recorded and stored in a large amount in the PC. Meanwhile, in order to steal such information, unauthorized access to PCs and information leakage are constantly present.

Among the unauthorized accesses to this PC, a recent problem is leakage of information due to access to the USB port. When connecting an external storage device such as a USB memory to a USB port, it is necessary to take measures to prevent access to the USB port since data in the PC can be simply copied.

Therefore, the insertion case is inserted into the USB port to prevent access to the USB port, and the lock claw provided in the insertion case is locked by engaging with the slit on any surface of the outer frame of the USB port, A USB port locking device (USB lock mechanism and releasing mechanism) is proposed in Japanese Utility Model Registration No. 3135047 (paragraphs 0009 to 1988, FIGS. 5 to 7).

In the USB port locking device of this document, a housing (insertion case) having an opening having the same external shape as the shape of a USB device (male terminal) used as a standard is used. Through this opening, the USB lock mechanism is plugged into the USB port. A male terminal of a USB port of a standard size is formed with a cutout (slit) in the outer frame plane portion thereof, and a pressing spring is formed. A hole is provided in the housing to correspond to the position. The housing material is made of non-ferrous metal such as the current USB device (male type terminal), and it can be a non-conductive material as it does not require electrical connection. Then use the gap provided in this hole and cutout to lock and lock the USB port. In other words, since the claw portion is protruded from the hole of the housing and is positioned so as to mesh with the gap of the cutout of the USB port, when the USB lock mechanism is inserted, it is completely engaged with the claw portion.

In order to obtain such a structure, the claw portion is connected to a guide portion connecting from the claw portion to an end portion of the housing which has no opening. When the USB lock mechanism is inserted, the guide portion maintains its position with slight warpage until the claw enters the gap provided in the cutout, and the claw portion is surely digging into the gap and meshing with each other. The material of the guide portion is suitably non-conductive in nature such as plastic.

Normally, two holes are provided on the same plane to match the cut-out of the USB device (male terminal). For this reason, there may be only one claw portion and one guide portion, but it is preferable to provide two claw portions and two guide portions. It is also possible to provide a hole and a claw portion corresponding to the cutout of the side surface of the USB port.

In this way, the claw portion and the USB port can not be completely disengaged from each other. If you try to force it out, the USB port or USB lock mechanism will be damaged. As a result, it is possible to lock the port without using software at all.

The USB lock mechanism of this document is provided with a lock release receiving portion connected to the guide portion and receiving the lock release member. As shown below, to receive the lock releasing member and detach the claw portion from the gap of the cutout. Therefore, in the case where two claw portions and two guide portions are provided in correspondence to the two cutouts on the plane of the USB port, the unlocking receiving portion is formed in a plate shape connecting between the two guide portions, It is suitable to be disposed.

Further, the claw portion, the guide portion, and the lock releasing receiving portion may be cut in the side surface as described above, or may not be provided in two places. For example, it is possible to provide two unlocked receivers for receiving the unlocking members by providing two holes, claws, and guide portions, respectively, by using two notches on the side of the opposing side, connecting the two guide portions successively.

Further, the lock release receiving portion may be either a hard material or an elastic material as long as the claw portion can be removed by receiving the lock releasing member, and the shape thereof can be appropriately changed in accordance with the shape of the unlocking member.

The housing is provided with a thin film serving as an inlet of the unlocking member on the end surface without the opening of the housing and a cavity in the direction toward the unlocking receiving portion. That is, in order to release the locked lock, the user tears the unlocking member to pass through the cavity and pushes it further, pushing the unlocking member against the unlocking receiving portion and pushing or pushing the guide portion to move the claw portion from the notch I have to remove it and then unlock it. Therefore, the thin film may be of such strength and material as to be torn when a person depresses the unlocking member with an appropriate force. For example, thin plastic. That is, in order to release the lock, the thin film must be torn, and the history of the cracks remains at a glance.

In this manner, whether or not an unauthorized access has occurred can be easily recognized at a glance without using any software. Also, if individual identification information such as a serial number is given to the housing, whether or not a separate housing is mounted after the disassembly can be easily recognized.

The release mechanism of the lock provided separately from the lock mechanism includes a rod-shaped or plate-shaped member so as to be inserted into the opening.

It is preferable to have a releasing recess provided so as to be engaged with the unlocking receiving portion when the thin film is torn and inserted and the claw portion is detached while depressing the guide. As a result, the releasing recess is engaged with the lock releasing receiving portion, and it is possible to extract the locking mechanism safely and easily.

According to the above configuration, it is possible to prevent information leakage by preventing access to the USB port itself without requiring any software, and it is possible to recognize the history of unauthorized access, Lt; / RTI >

However, in the above-described conventional USB port locking device (lock mechanism and releasing mechanism), a thin film serving as an entrance of the unlocking member and a cavity in the direction of the unlocking receiving portion are provided on the end surface of the housing, The unlocking member is torn to pass through the thin film of the end surface and is further pushed to push the unlocking member against the unlocking receiving portion and to push down or push the guide portion so that the claw portion is cut out of the outer frame plane portion, So that the lock is loosened. Therefore, even if the lock releasing member itself is not used, if it is enough to push the guide portion against the unlocking receiving portion by passing through the rod or the plate material, that is, the cavity of the housing, There is a possibility that security with high reliability can not be obtained.

SUMMARY OF THE INVENTION It is an object of the present invention to solve such a conventional problem, and it is an object of the present invention to provide a USB port locking apparatus of this kind, which is capable of making it difficult to release a lock after a USB port is closed and locked, .

To achieve the above object, a USB port locking apparatus of the present invention includes:

In a USB port lock device that plugs into a USB port, locks it, locks it, and prevents access to the USB port,

A substantially tubular cover case having openings at both ends thereof,

An outer cylinder having openings at both ends thereof and fixed in place in the cover case; and a lock releasing portion having a front end formed in a wedge shape at a front end thereof, the lock releasing portion having a key hole at the rear end side, A plurality of pin holes are provided between the inner cylinder to be inserted, the outer cylinder and the inner cylinder, and are movably arranged in the respective pin holes of the outer cylinder, and a plurality of pressing bodies are urged by the spring members toward the inner cylinder side And a plurality of driver pins movably disposed in the respective pin holes of the inner cylinder and resiliently biased to the respective lock pins of the outer cylinder, wherein the lock pins are in a steady state in a locked state, The lock is unlocked by inserting a dedicated key into the keyhole so that the inner cylinder moves in the front end direction of the outer cylinder in the outer cylinder And the type of cylinder lock that,

A spring member disposed in the cylinder lock and biasing the inner cylinder toward the rear end side of the outer cylinder in a steady state and pressing and holding the unlocking portion of the inner cylinder in the front end opening of the outer cylinder,

A hole arranged at a position opposite to the slit on one side of the outer frame of the USB port is provided on the circumference when the USB port is inserted into the USB port, An insertion case which is connected to a front end opening of the cover case so as to allow the unlocking portion of the inner cylinder to move forward and backward and which protrudes from the front end opening to the outside of the cover case,

Wherein the insertion case is formed with a plate spring disposed along the surface having the hole in the substantially cylindrical shape of the insertion case, the one end being supported on the front end side of the insertion case, A lock member having a lock claw extending obliquely along the wedge shape at the tip of the release portion and protruding from the hole in the middle portion and capable of being hooked to the slit of the USB port

And,

The lock claw protruding from the hole of the insertion case is locked by engaging with the slit of the outer frame of the USB port, and the lock is locked when the insertion case is inserted into the USB port, The state is maintained by the cylinder lock in the steady state as a steady state,

When the insertion case is pulled out from the USB port, the cylinder lock is unlocked by inserting the key into the key hole of the cylinder lock, and the inner cylinder is pushed toward the insertion case side against the biasing force of the spring member in the unlocked state , The lock releasing portion is advanced in the insertion case and the lock member is displaced in a direction in which the lock claw is separated from the slit of the USB port to release the lock

.

In this USB port locking device, it is preferable that the cover case, the outer cylinder, and the inner cylinder are each formed in a flat square shape and the whole is formed into a flat, square shape.

In this USB port locking device, two holes are formed in one side surface of the insertion case corresponding to two slits arranged in parallel on one surface of the outer frame of the USB port, A width plate extending from the front end along the side surface to the position of each of the holes and having two lock claws protruding from the respective holes to the outside of the insertion case; And the front end of the wide plate is connected to the front end of the one side of the insertion case at the front end of the one side of the insertion case It is preferable to fix it by caulking.

According to the USB port locking device of the present invention, the insertion port is inserted into the USB port by the above-described configuration, thereby closing the USB port with the insertion case, and the lock claw protruding from the hole of the insertion case is inserted into the USB port The lock is made by engaging with the slit of the frame, and the lock state is maintained as the steady state by the cylinder lock in the locked state, thereby making it difficult to release the lock after the USB port is closed and locked, and highly reliable security can be realized . When the insertion case is pulled out from the USB port, the cylinder lock is unlocked by inserting a dedicated key into the keyhole of the cylinder lock, and in this unlocking state, the inner cylinder is pushed toward the insertion case side against the urging force of the spring member, The locking member is moved forward in the insertion case to displace the lock claw in the direction away from the slit of the USB port to release the lock so that only the manager of the key can easily release the locking of the USB port. Effect.

Fig. 1 is a diagram showing the configuration of a USB port locking device according to one embodiment of the present invention. Fig. 1 (a) is a side sectional view and Fig. 1 (b) is a rear sectional view.
FIG. 2 is a plan view showing a state in which the USB port is locked by a USB port locking device, and FIG. 2 (b) is a side sectional view.
FIG. 3 is a side view showing a state in which the lock by the USB port locking device of the USB port is released. FIG. 3 (b) And Fig. 3 (c) is a side sectional view.
Fig. 4 is a diagram showing a configuration of a general USB port. Fig. 4 (a) is a side view and Fig. 4 (b) is a front view.

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments for carrying out the present invention will be described with reference to the drawings.

FIG. 4 shows a general USB port, and FIG. 1 shows a USB port locking device.

Here, the USB port will be described first.

4, the USB port P includes an outer frame 91 made of a metal having a substantially square prism shape, a plastic electrode support member 94 disposed in the outer frame 91, And a plurality of electrodes (not shown) disposed on the support member 94. [ Particularly, the outer frame 91 is formed into a substantially quadrangular tubular shape which is entirely flat so that the insertion port 90 is wide in the longitudinal direction and narrow in the width direction by spring steel or the like. In addition, on each side of the outer frame 91, a pushing spring 93 for pushing a USB terminal (male) to be inserted into the USB port P is protruded inward. In the illustrated embodiment, two roughly U-shaped slits 92 are formed in parallel on two large planes, two roughly triangular pushing springs 93 are arranged in parallel, and one small U- 92 are formed, and one substantially triangular pressing spring 93 is disposed. Each of these pushing springs 93 is curved or bent inward as a whole and is curved or bent toward the outside so that the USB terminal P inserted in the USB port P is reliably pressed and held, The USB port (P) can be easily inserted and removed.

Hereinafter, a USB port locking device of the present invention will be described.

1, the USB port locking device L inserts the insertion case 7 into the already-described USB port P to prevent this, and locks the lock claw 811 provided in the insertion case 7 to the USB port P Is locked by engaging with the slit 92 on one side of the outer frame 91 of the main body P to prevent access to the USB port P to prevent leakage of information. In particular, the USB port locking device L comprises a cover case 1, a cylinder lock 2, a spring member 6, an insertion case 7, and a lock member 8.

In this USB port locking device L, one surface of the outer frame 91 of the USB port P, in this case, one surface of the outer frame 91 facing the surface on which the electrodes of the electrode supporting member 94 are disposed Two lock claws 811 are provided in the insertion case 7 in correspondence with the two slits 92 arranged in parallel on the left side surface 91s (hereinafter referred to as the left side surface 91s of the outer frame 91) Two lock claws 811 are engaged with the two slits 92 to be locked.

The cover case 1 is formed in a substantially cylindrical shape having openings 10 at both ends thereof. In this embodiment, the cover case 1 is formed by polypropylene in the shape of a square barrel, more specifically, the entirety of the barrel is formed into a substantially flat, And a long flat rectangle with a narrow width in the width direction (transverse direction). In this embodiment, the front opening 10 is formed with a flange 11 having a predetermined width around its entire periphery, and the opening area is slightly smaller than the opening 10 at the rear end.

The cylinder lock 2 has an outer cylinder 3 having openings 31 and 32 at both ends and fixedly arranged in the cover case 1 and an unlocking portion 41 for forming a wedge- And has a keyhole 40 on the rear end side and is provided with an inner cylinder 4 inserted into the outer cylinder 3 so as to be movable in the axial direction of the outer cylinder 3 and a plurality of fins 4 arranged between the outer cylinder 3 and the inner cylinder 4, And a plurality of lock pins 35 (35) arranged movably in the respective pin holes (33) of the outer cylinder (3) and pressed against the inner cylinder (4) by spring members (34) And a plurality of driver pins 45 that are movably disposed in the respective pin holes 43 of the inner cylinder 4 and resiliently pressed against the respective lock pins 35 of the outer cylinder 3, 3 is inserted into the keyhole 40 so that the inner cylinder 4 is inserted into the one end of the outer cylinder 3 in the outer cylinder 3, So that it can be moved in the direction of incense.

The outer cylinder 3 is formed by zinc alloy die casting and has a length substantially equal to the axial length of the inner side of the cover case 1 and slightly smaller than the hollow section inside the cover case 1, 32, in this embodiment, it is formed into a flat, substantially rectangular cylindrical shape, and is fittable in the cover case 1. In this embodiment, The hollow portion 36 between the both end openings 31 and 32 of the outer cylinder 3 has a long rectangular rectangular front end hollow portion 361 having a short axial length and a large hollow section, 361, and the axial length is longer than the front-end hollow portion 361. The upper portion of the outer barrel is slightly thicker than the front-end hollow portion 361 and the hollow section is slightly smaller than the front-end hollow portion 361 And the length in the axial direction is slightly longer than the combined length of the front end side hollow portion 361 and the intermediate hollow portion 362. When the upper end portion of the outer barrel is in the middle of the intermediate hollow portion 362, Side hollow portion 363 that is thicker than the hollow portion 362 and has a hollow cross-section that is smaller than the intermediate hollow portion 362. 36 and 363 on the front end side, the middle end, and the rear end side, the difference in thickness between the upper portion of the front end hollow portion 361 and the upper portion of the intermediate hollow portion (-), Stepped portions 364 and 365 are formed between the intermediate hollow portion 362 and the rear end side hollow portion 363, respectively. The rear end side hollow portion 363 is formed at a position eccentric to the axial center of the outer cylinder 3, eccentrically slightly below the axial center in this embodiment. The pin hole 33 is formed through the outer peripheral surface of the outer cylinder 3 and the inner peripheral surface of the outer cylinder at four positions in the axial direction at right angles to the axial direction on the upper portion of the rear end side hollow portion 363. A cylindrical lock pin 35 having a bottom in each of these pin holes 33 is movably attached to the pin hole 43 of the inner cylinder 4 with a coil spring as a spring member 34 interposed therebetween. Mounting holes 37 for connecting and fixing the insert case 7, which will be described later, are formed at one end and both upper and lower sides of the right and left sides of the outer cylinder 3.

The inner tube 4 is made of zinc alloy die cast and has the same length as the length of the hollow portion 36 of the outer tube 3 and has openings 401, 402, which in this embodiment is flat and has a substantially rectangular cylindrical shape, and can be inserted and inserted into the hollow portion 36 of the outer cylinder 3. [ The front end side (front end surface) of the upper half is formed in a wedge shape so that the front end of the inner tube 4 is provided with the unlocking portion 41 Respectively. In this embodiment, the wedge shape of the unlocking portion 41 is inclined at a predetermined angle from the front end of one side (right side) of the unlocking portion 41 to the front and rear middle portion of the other side (left side) (In the shape of a right triangle in plan view) (see Fig. 2 (a)). The hollow portion between the both end openings 401 and 402 of the inner cylinder 4 is formed into a keyhole 40 from the lock release portion 41 at the front end to the rear end at the lower half side in a convex section shape. The pin hole 43 corresponds to the pin hole 33 of the outer cylinder 3 and has four portions in the axial direction from the upper portion to the rear end portion of the inner cylinder 4 and an outer peripheral surface and an inner peripheral surface As shown in FIG. Driver pins 45 having the same diameter and different lengths are provided in the pin holes 43 so as to be movable in the vertical direction and are elastically pressed by the lock pins 35 of the outer cylinder 3. [ The upper portion of the inner cylinder 4 is formed with a receiving portion 47 for a coil spring which is formed by a U-shaped rising portion having a U-shaped cross section which is open at the rear side of the unlocking portion 41, The inner cylinder 4 is inserted into the hollow portion 36 of the outer cylinder 3 so that the receiving portion 47 is disposed on the upper portion of the intermediate hollow portion 362 of the outer cylinder 3, The rear portion is engaged with the step portion 365 between the intermediate hollow portion 362 and the other end side hollow portion 363 so that the unlocking portion 41 at the front end is engaged with the outer cylinder 3, So as to be movable in the axial direction of the outer cylinder (3).

The key 5 is formed of brass and consists of the blade 51 and the head 52 so that the concavo-convex shape of the edge of the blade 51 naturally matches the key code of the cylinder lock 2. [ In this embodiment, since the cylinder lock 2 is constituted by four code pins and four stepped portions having different lengths, 256 different kinds of keys are possible by the fourth power of 4.

The key 5 is provided with a key hole 5 in the rear end face of the inner cylinder 4 when the key 5 is inserted into the key hole 40 of the cylinder lock 2 on the base portion of the concave- Convex engaging portion 53 having a height capable of abutting only the upper edge portion of the inner cylinder 40 (opening 402) and a length necessary for moving the inner cylinder 4 within the outer cylinder 3 by a predetermined distance are formed do.

The cylinder lock 2 is configured in this manner, and the insertion case 7, which will be described later, is attached to the front end thereof and is integrally incorporated in the cover case 1. [

The spring member 6 is disposed in the cylinder lock 2 and urges the inner cylinder 4 toward the rear end side of the outer cylinder 3 in a steady state to urge the unlocking portion 41 of the inner cylinder 4 to the outer cylinder 3). In this embodiment, a coil spring is employed as the spring member 6, and the coil spring 6 is disposed axially in the receiving portion 47 of the upper portion of the inner cylinder 4 of the cylinder lock 2, The inner cylinder 4 is pressed against the rear end side of the outer cylinder 3 to press the rear portion of the receiving portion 47 in the upper portion of the inner cylinder 4 against the intermediate hollow portion 362 And presses the stepped portion 365 between the rear end side hollow portions 363 so as to press and hold the unlocking portion 41 of the inner cylinder 4 in the front end opening 31 of the outer cylinder 3. [

The insertion case 7 has an approximately tubular shape that can be inserted into the USB port P and has openings 71 and 72 at both ends thereof and is inserted into the USB port P, The inner side of the tubular portion of the insertion case 7 is formed so as to allow the unlocking portion 41 of the inner tube 4 to move forward and backward with a hole 73 disposed at a position opposed to the slit 92 on one side of the inner case 4 Is connected to the front end opening (10) of the cover case (1) so as to protrude from the front end opening (10) to the outside of the cover case (1). In this embodiment, the insertion case 7 is formed in a flattened cylindrical shape having a substantially flat rectangular cross section, which is substantially the same as the shape of the outer frame of the connector of the USB device (male terminal) generally used by the steel plate, And the opening 72 at the rear end is substantially equal to the sectional shape of the unlocking portion 41 so as to allow the unlocking portion 41 of the inner cylinder 4 to be inserted into the vertical central portion thereof It forms a square. When the insertion case 7 is connected to the front end opening 10 of the cover case 1, the upper end of the opening 72 is covered with a plate. When the insertion member 7 is connected to the front end opening 10 of the cover case 1, All. On the right side surface of the insertion case 7 corresponding to the left side surface 91s of the outer frame 91 of the USB port P is formed a slit 92 on the left side surface of the outer frame 91 Two holes 73 are formed in correspondence with the center portion. Each hole 73 is formed in a rectangular shape. A fixing portion 74 for fixing the locking member 8 to be described later is formed at the front end of the right side surface of the insertion case 7 and the insertion case 7 is fixed to the cover case 1 at the rear end side of both right and left side surfaces. An attachment hole 75 is formed for connection and fixing in the front end opening of the housing. In this embodiment, the fixing portion 74 is composed of a pair of U-shaped protruding pieces 741, and the front end edge portion of the right side surface of the insertion case 7 is symmetrical about the center in the width direction, And each folded back into a substantially U-shape in the inward direction. The attachment holes 75 are symmetrically formed on the upper and lower sides of the insert case 7 with the center in the width direction as a symmetrical center at the rear end side of the left and right side surfaces of the insert case 7.

The lock member 8 is formed of a leaf spring disposed along the right side surface having the hole 73 in the cylindrical shape of the insertion case 7 and has one end supported on the front end side of the insertion case 7, 73 protruding from the hole 73 at an intermediate portion of the USB port P so as to extend obliquely along the wedge shape at the tip of the unlocking portion 41 of the inner cylinder 4 in the left surface direction opposite to the right side having the USB port P, And a lock claw 811 that can be hooked on the slit 92 of the lock claw. In this embodiment, the lock member 8 is made of stainless steel and extends from the front end along the right side in the cylindrical shape of the insertion case 7 to the position of each hole 73, A wide rectangular plate 81 having two lock claws 811 protruding outward from the lock plate 8 and a lock claw 811 of the rectangular plate 81, And a narrow rectangular plate 82 having an inclined surface 821 which can be brought into contact with the tip wedge shape of the unlocking portion 41 at the end. The front end of the wide rectangular plate 81 is inserted into and fixed to the fixed portion 74 of the front end of the right side surface of the insertion case 7, that is, the pair of U-shaped protrusions 741 The two locking claws 811 protrude outward from the respective holes 73 on the right side surface of the insertion case 7 and the rear side inclined surface 821 protrudes from the right side surface toward the left side surface Extend obliquely.

The rear end side of this insertion case 7 is disposed in the front end opening 31 of the outer cylinder 3 of the cylinder lock 2 and the insertion holes 37 of the front end of the outer cylinder 3 and the insertion hole 37 of the insertion case 7 The pin 77 is passed between the attachment holes 75 at the rear end and both ends of the pin 77 are caulked and connected to the front end of the outer cylinder 3. [ The tip end of the unlocking portion 41 is disposed in the insertion case 7 in such a manner as to be able to move back and forth in contact with the rear end inclined surface 821 of the lock member 8. The cylinder lock 2 having the insertion case 7 engaged therewith is integrally incorporated in the cover case 1 so that the insertion case 7 protrudes from the front end opening 10 of the cover case 1. [

In this way, the USB port locking device L is closed by inserting the insertion case 7 into the USB port P, and this state is detected by the lock claws (not shown) projecting from the respective holes 73 of the insertion case 7 811 are locked by being engaged with each slit 92 of the outer frame 91 of the USB port P and this lock state is maintained by the cylinder lock 2 in the steady state as a steady state. When the insertion case 7 is pulled out from the USB port P, the cylinder lock 2 is unlocked by inserting a dedicated key 5 into the key hole 40 of the cylinder lock 2, The lock releasing portion 41 is advanced in the insertion case 7 by pushing the locking member 4 against the urging force of the spring member 6 and pushing it toward the insertion case 7, 821 are displaced in the direction in which each lockle 811 is separated from each slit 92 of the USB port P to release the lock.

Figs. 2 and 3 show examples of use of the USB port locking device L. Fig.

When the USB port P is to be locked in the USB port lock apparatus L, the user inserts the portion of the cover case 1 of the USB port lock apparatus L into the insertion case 7 Plug it into the USB port (P). By inserting the insertion case 7 into the USB port P, the USB port P is closed by the insertion case 7 and the two slits 92 of the outer frame 91 of the USB port P are closed, Two lock claws 811 protruding from the two holes 73 of the insertion case 7 are caught (locked) in the lock claws 811 (central portions of the slits 92) And is held by the cylinder lock 2 in the locked state. The engagement of the four lock pins 35 of the outer cylinder 3 with the four pin holes 43 of the inner cylinder 4 allows the inner cylinder 4 to move toward the insertion case 7 in the outer cylinder 3 The locking member 8 can not be pushed by the lock releasing portion 41 of the inner cylinder 4 so that the slits 92 of the lock claws 811 ) Is maintained.

When releasing the lock of the USB port P, a dedicated key 5 is inserted into the key hole 40 of the cylinder lock 2 of the USB port locking device L as shown in Fig. 3 (a) Whereby the cylinder lock 2 is released. The driver pins 45 in the respective pin holes 43 of the inner cylinder 4 are pushed up in accordance with the concavo-convex shape of the blade 51 of the key 5 by the insertion of the dedicated key 5, A mating surface between the lock pin 35 and the driver pin 45 disposed in the respective pin holes 33 and 43 of the inner cylinder 3 and the inner cylinder 4 is formed in a shear line state between the outer cylinder 3 and the inner cylinder 4. [ The inner cylinder 4 can be moved toward the insertion case 7 in the outer cylinder 3. In this case, 3 (c), the upper edge portion of the key hole 40 of the inner cylinder 4 is pressed by the convex engagement portion 53 of the key 5 by the pressing operation of the key 5, When the inner cylinder 4 is pushed toward the insertion case 7 in the outer cylinder 3, the lock releasing portion 41 at the front end of the inner cylinder 4 advances in the insertion case 7, The lock member 8 moves between the lock member 8 and the right side surface of the insertion case 7 while pushing up the inclined surface 821 and moves the entire lock member 8 obliquely toward the left side surface of the insertion case 7. As a result, each lock claw 811 escapes from each slit 92 of the USB port P and is immersed in the insertion case 7 from each of the holes 73 on the right side surface of the insertion case 7, The engagement of the lock claw 811 with each slit 92 is released. In the unlocked state of the lock claw 811, when the USB port locking device L is pulled out of the USB port P by holding the portion of the cover case 1 by hand, the lock of the USB port P is released .

As described above, according to this USB port locking device L, the insertion case 7 is inserted by being inserted into the USB port P, and the closed state is prevented from being inserted into the hole 73 of the insertion case 7 Each lock claw 811 is locked by being engaged with each slit 92 of the outer frame 91 of the USB port P and the lock state is set to a steady state and the lock state of the cylinder lock 2 So that it is difficult to release the lock after the USB port P is closed and locked, thereby achieving highly reliable security. When the insertion case 7 is pulled out from the USB port P, the cylinder lock 2 is unlocked by inserting the dedicated key 5 into the key hole 40 of the cylinder lock 2, The lock releasing portion 41 is advanced in the insertion case 7 by pushing the locking member 4 against the urging force of the spring member 6 and pushing the locking member 4 toward the insertion case 7, The claw 811 is displaced in the direction away from each slit 92 of the USB port P to release the lock so that only the manager of the key 5 can easily release the lock of the USB port P .

In the USB port locking device L, the cylinder lock 2 is inserted into the keyhole 40 of the inner cylinder 4 by inserting the key 5, and the inner cylinder 4 is locked in the outer cylinder 3 with the key 5, the cover case 1, the outer cylinder 3, and the inner cylinder 4 are each formed in the shape of a flat square, and the whole device is formed into a flat square shape, The thickness of the entire apparatus can be made as thin as possible. Therefore, even if two or more USB ports (P) are installed in parallel on the rear or side of the PC body, it is possible to lock the two USB ports (P) to the two USB port locking devices Only one USB port P can be locked with one USB port lock device L so as not to interfere with the use of the other USB port P.

In this USB port lock device L, since the cylinder lock 2 is composed of four code pins and four stepped portions having different lengths, 256 different keys can be formed by 4th power of 4, and more reliable security Can be realized.

In this USB port lock device L, 256 different keys are used. However, each time the number of arrays of pins is increased by one, the number of keys can be increased by four, and the number of arrays of pins is increased to realize more reliable security. It is possible.

In this USB port locking device L, two locking claws 811 are provided in the insertion case 7 in correspondence with two slits 92 arranged in parallel on one surface of the outer frame 91 of the USB port P. [ And two lock claws 811 are engaged with the two slits 92 to lock the USB ports P. However, in the case where one slit is provided on one side of the outer frame of the USB port P, one A lock claw may be provided, and one lock claw may be engaged with one slit to lock.

L ... USB port lock device
One… Cover Case
10 ... Opening
11 ... flange
2… Cylinder lock
3 ... Outer tube
31 ... Opening
32 ... Opening
33 ... Pin hole
34 ... Spring member (coil spring)
35 ... Lock pin
36 ... Hollow portion
361 ... The front-
362 ... Intermediate hollow portion
363 ... The rear-
364 ... Stepped portion
365 ... Stepped portion
37 ... Mounting hole
4… Inner tube
401 ... Opening
402 ... Opening
40 ... Keyhole
41 ... The lock releasing portion
43 ... Pin hole
45 ... Driver pin
46 ... Hollow portion
47 ... Receiving portion
5 ... key
51 ... blade
52 ... head
53 ... The convex-
6 ... Spring member (coil spring)
7 ... Insert case
71 ... Opening
72 ... Opening
73 ... hole
74 ... [0035]
741 ... Stone
75 ... Mounting hole
77 ... pin
8… Lock member
81 ... Wide Square Plate
811 ... Rockcloth
82 ... Narrow rectangular plate
821 ... incline
P ... USB port
90 ... parenthesis
91 ... Outer frame
91s ... The left side of the outer frame
92 ... Slit
93 ... Press spring
94 ... Electrode supporting member

Claims (3)

In a USB port lock device that plugs into a USB port, locks it, locks it, and prevents access to the USB port,
A substantially tubular cover case having openings at both ends thereof,
An outer cylinder having openings at both ends thereof and fixed in place in the cover case; and a lock releasing portion having a front end formed in a wedge shape at a front end thereof, the lock releasing portion having a key hole at the rear end side, A plurality of lock pins that are provided between the inner cylinder to be inserted, the outer cylinder, and the inner cylinder so as to be movable in the respective pin holes of the outer cylinder, and which are pressed against the inner cylinder side by a spring member, And a plurality of driver pins which are movably disposed in the respective pin holes and are resiliently pressed against the lock pins of the outer cylinder, are in a steady state in a steady state and are unlocked by inserting a dedicated key into the key hole , A type of cylinder in which the inner cylinder is movable in the front end direction of the outer cylinder in the outer cylinder And Lock,
A spring member disposed in the cylinder lock and biasing the inner cylinder toward the rear end side of the outer cylinder in a steady state and pressing and holding the unlocking portion of the inner cylinder in the front end opening of the outer cylinder,
A hole formed at a position opposite to the slit on one side of the outer frame of the USB port is provided on the circumference when the USB port is inserted into the USB port, An insertion case which is connected to a front end opening of the cover case so as to allow the unlocking portion of the inner cylinder to move forward and backward and which protrudes from the front end opening to the outside of the cover case,
Wherein the insertion case is formed with a plate spring disposed along the surface having the hole in the substantially cylindrical shape of the insertion case, the one end being supported on the front end side of the insertion case, A lock member having a lock claw protruding from the hole at an intermediate portion and capable of hanging on a slit of the USB port,
And,
The lock state is locked by engaging the lock claw projecting from the hole of the insertion case with the slit of the outer frame of the USB port, and the locked state is a normal state Is held by the cylinder lock in a locked state,
When the insertion case is pulled out from the USB port, the cylinder lock is unlocked by inserting the key into the key hole of the cylinder lock, and the inner cylinder is pushed toward the insertion case side against the biasing force of the spring member in the unlocked state , The lock releasing portion is advanced in the insertion case and the lock member is displaced in a direction in which the lock claw is separated from the slit of the USB port to release the lock
The USB port lock device. The USB port locking device according to claim 1, wherein the cover case, the outer cylinder, and the inner cylinder are each formed in a flat square shape, and the whole is formed into a flat square shape. The insertion case according to claim 1 or 2, wherein two holes are formed in one side surface of the insertion case, corresponding to two slits arranged in parallel on one surface of an outer frame of the USB port, A width plate extending from a front end to a position of each of the holes along the one side face and having two lock claws protruding from the respective holes to the outside of the insertion case; And the front end of the wide plate is connected to the front end of the one side of the insertion case at the front end of the one side of the insertion case And the locking member is caulked and fixed.

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