JP4341750B2 - Locking device for theft prevention of portable devices - Google Patents

Description

  The present invention relates to an anti-theft locking device for portable devices such as notebook computers, and more particularly, to an anti-theft locking device for portable devices for preventing the theft of notebook computers, etc. It is about.

  Conventionally, as this type of anti-theft locking device, for example, a fixed stopper and a sliding stopper that are locked to a rectangular hole provided in a notebook computer etc. on an outer cylinder connected to a wire fixed to a desk leg or the like In some cases, the sliding stopper is moved and locked in the above rectangular hole by inserting the key into the cylinder in the outer cylinder and turning it (see, for example, Patent Document 1). reference).

By the way, this type of locking device uses a rectangular lock hole formed in a housing of a notebook computer or the like to connect the portable device to a fixed object such as a desk leg. Therefore, it is desirable that this type of locking device is formed so that the portable device can be easily and quickly connected to the fixed object by inserting the insertion portion of the cylinder lock into the lock hole.
However, in the conventional product, as described above, after the fixed stopper and sliding stopper are inserted into the lock hole, the key is inserted into the cylinder (rotor) and turned, and the sliding stopper is moved and locked to the lock hole. Similarly, when releasing the lock, it was necessary to insert the key into the cylinder and turn it in the opposite direction to release the locked state.
Therefore, according to the conventional product, there is a problem that the connecting operation is troublesome, cannot be performed quickly, and is unusable.
Utility Model Registration No. 3062010

The present invention has been proposed in view of such problems of the prior art.
Therefore, the technical problem to be solved by the present invention is to provide a portable device antitheft locking device that can be easily and quickly connected to a portable device with a single touch and is easy to use. It is in.

The present invention employs the following technical means in order to solve the above problems.
That is, as shown in FIG. 1 and the like, the present invention is formed by a cable 1 having one end 1a connected to a fixed object 2, and a cylinder lock 3 connected to the other end 1b of the cable 1, and this cylinder The lock 3 includes an insertion portion 5 to be inserted into the lock hole 4a of the casing of the portable device 4 and a release mechanism 6 for releasing the connection state between the insertion portion 5 and the portable device 4. The portion 5 is formed of a pair of operating pieces 7 that move toward and away from each other in a direction orthogonal to the axial direction of the rotor 3a of the cylinder lock 3, and at the tip of each operating piece 7 at the peripheral edge inside the lock hole 4a. The locking portion 71 to be locked is a locking device for preventing theft of the portable device 4 formed so as to protrude outward in the direction in which the operating piece 7 is brought into contact with and separated from. Between the plate-like operating piece 7 and the operating piece 7 Is formed by a plate-shaped fixing piece 8 is sandwiched in contact with Sakuhen 7, the tip 5a of the insertion portion 5, the cylinder lock 3 by the locking portion 71 toward the insertion direction is formed in a taper When the insertion portion 5 is inserted into the lock hole 4a at the same position in the cylinder lock 3 of the operation piece 7 and the fixed piece 8 as the rear portion of the cylinder lock 3, the operation piece is formed. 7 is returned to the direction of separating from each other, which is an urging direction, and the distal end 5a of the insertion portion 5 is restored to a substantially arrow shape in a side view of the cylinder lock 3, and the spring 9 that connects the insertion portion 5 to the portable device 4 A storage hole 10 is formed in a window shape, and a spring 9 whose spring diameter substantially matches the width in the plate thickness direction of the space part S is formed in a space S formed by combining the storage holes 10 in the spring pressure direction. It housed by matching the moving direction of the operation piece 7, release of the The structure 6 is formed of a cam member that is connected to the rear end of the rotor 3a and rotates together with the rotor 3a, and this cam member is disposed in the cylinder lock 3 so as to be separated from the base end 72 of the operating piece 7. When the cam member rotates together with the rotor 3a against the force of the spring 9 when the cylinder lock 3 is unlocked, the operating piece 7 is provided. At the same time, the locking portion 71 moves in a direction approaching each other, and the locking state between the locking portion 71 and the lock hole 4a is released (Claim 1).

  In the case of the present invention, the cable 1 is not limited to one in which wires or the like are twisted together or one that is covered with a jacket, and includes, for example, a metal wire, a resin wire, or a rope. Further, here, the locking portion 71 is formed in a tapered shape so as to be formed in a substantially arrow shape in a side view of the cylinder lock 3. When the tip 5 a of the insertion portion 5 is inserted into the lock hole 4 a, the operation piece 7 is formed. When the locking portion 71 is completely moved into the housing through the lock hole 4a by being pushed by, for example, the upper and lower edges of the lock hole 4a and gradually moving closer to each other, it is engaged by the restoring force of the spring 9. It means that the stop portion 71 is returned and the locking portion 71 is tapered so as to be locked to the inner peripheral surface of the lock hole 4a. Therefore, in the case of the present invention, the taper of the locking portion 71 is not limited to the inclined surface as long as it is formed so as to be easily inserted into the lock hole 4a, and may be formed in an arc shape, for example.

Further, in the case of the present invention, the pin-shaped guide members 11 for guiding the operating piece 7 are paired on both sides of the fixed piece 8 with the accommodation hole 10 of the spring 9 formed in the fixed piece 8 interposed therebetween. It is preferable that the protruding guide portion 12 through which the pin-shaped guide member 11 is passed is formed in the operating piece 7 in the shape of an elongated hole extending in the moving direction of the operating piece 7 (Claims). 2 ).
This is because according to this, the operation piece 7 can be moved in a stable state by the guide member 11. Here, the elongated hole shape means that it is formed in a groove shape or a long hole shape having a width slightly larger than the diameter of the pin-shaped guide member 11.

Further, in the present invention described in claim 1 or 2 , it is preferable that the cross section of the cam member in a direction orthogonal to the axial direction of the rotor 3a of the cylinder lock 3 is formed in an elliptical shape (claim 3 ).
Because, according to this, even if the key 13 is rotated in either the forward or reverse direction, the operation piece 7 can be moved in a direction approaching each other, so that the connection between the lock hole 4a and the locking portion 71 can be released. Because it will improve.

In the present invention, the tip of the insertion portion is formed in a substantially arrow shape, and when the insertion portion is inserted into the lock hole, the operating piece is restored, and the tip of the insertion portion is restored to a substantially arrow shape so that the insertion portion is portable. A spring for connecting to the device is provided in the rear part of the cylinder lock, and a release mechanism for releasing the connected state is formed by a cam member. The cam member is connected between the base ends of the operating pieces, and the outer peripheral surface is engaged with the base end. When the cam member rotates together with the rotor, the operating pieces are moved in a direction approaching each other so that the locked state between the locking portion and the lock hole can be released.
Therefore, according to the present invention, the user can connect the portable device to a fixed object by one-touch by simply inserting the insertion portion into the lock hole, and the cylinder lock is opened using the key only when the locked state is released. All you need to do is lock it. Therefore, according to this, the connecting operation with the portable device can be performed easily, quickly and easily.

In the case of the present invention, since the insertion portion is formed by superposing three layers of the operating piece and the fixed piece, the insertion portion can be thinned so as to be easily inserted into the lock hole while maintaining the strength. In the case of the present invention, since the operating piece slides in contact with the fixed piece, the movement of the operating piece can be stabilized, and furthermore, since only one spring is required, the assembling cost and the part cost can be reduced.

Hereinafter, the best mode for carrying out the present invention will be described.
As shown in FIG. 1 and the like, the present invention is formed by a cable 1 whose one end 1a is connected to a fixed object 2 and a cylinder lock 3 connected to the other end 1b of the cable 1. The cable 1 is configured by housing twisted wires in a resin thin tube, and one end 1a is formed in a ring shape. The cylinder lock 3 is formed with an insertion portion 5 to be inserted into the lock hole 4a of the casing of the portable device 4 and a release mechanism 6 for releasing the connection state between the insertion portion 5 and the portable device 4. ing.

  The insertion portion 5 includes a pair of plate-like operating pieces 7 that move toward and away from each other in a direction orthogonal to the axial direction of the rotor 3a (rotary cylindrical member having a key insertion hole) of the cylinder lock 3, and the operating pieces 7 The plate-shaped fixed piece 8 is sandwiched between and in contact with the operating piece 7. A locking portion 71 that locks to the inner peripheral surface of the lock hole 4 a protrudes outward from the distal end of each operating piece 7 in the direction in which the operating piece 7 moves toward and away. Specifically, in FIG. 4, FIG. 11, etc., the locking portion 71 of the operation piece 7 on the near side is protruded downward from the lower side of the protruding portion 8 a of the fixed piece 8 and the locking portion of the operation piece 7 on the back side is locked. The portion 71 protrudes upward from the upper side of the protruding portion 8 a of the fixed piece 8. And the front-end | tip 5a of the insertion part 5 is formed in the substantially arrow shape by the side view of the cylinder lock 3, when the latching | locking part 71 of each operation piece 7 is formed in a taper-like inclined surface toward the insertion direction. Yes.

Further, according to the present invention, when the insertion portion 5 is inserted into the lock hole 4a at the rear portion of the cylinder lock 3, the operating piece 7 is returned in the direction of being separated from each other, which is the urging direction, and the tip 5a of the insertion portion 5 is connected to the cylinder lock. 3, a spring 9 that is restored to a substantially arrow shape when viewed from the side and connects the insertion portion 5 to the portable device 4 is housed. In this embodiment, the spring 9 is a cylindrical compression coil spring. As shown in FIGS. 9 and 10, the operating piece 7 and the fixed piece 8 have a storage hole 10 for the spring 9 formed in a window shape at a position in the cylinder lock 3. As shown in the figure, the storage hole 10 is formed in a main body portion 7b, 8b orthogonal to the protruding portions 7a, 8a of the operating piece 7 and the fixed piece 8, and in this embodiment, a vertically long rectangle. . Spring 9, FIG. 3, as shown in FIG. 4 or the like, the thickness direction of the width and the spring diameter of the space S in which each housing hole 10 is made is combined is formed to the thickness substantially matching. Then, the spring 9 has a space S in which the spring pressure direction coincides with the moving direction of the operating piece 7. For example, the operating piece 7 on the near side is always elastic downward and the operating piece 7 on the back side is always It is housed in a bullet shape above. In this case, the operation piece 7 on the near side is prevented from moving downward by locking the upper end of the guide portion 12 to an upper guide member 11 described later, and the operation piece 7 on the back side is Since the lower end of the guide portion 12 is locked to the lower guide member 11, the upward movement is prevented. As shown in FIG. 10, the vertical width D1 of the protruding portion 7a of the operating piece 7 and the vertical width D2 of the protruding portion 8a of the fixed piece 8 are selected to be smaller than the vertical length of the lock hole 4a. The vertical widths D1 and D2 are formed in the same size so that the heights of the vertical widths D1 and D2 are aligned when the operating piece 7 moves in the direction of approaching each other during unlocking.

Further, in the present invention according to this embodiment, the pin-shaped guide members 11 for guiding the operation piece 7 are sandwiched between the holding holes 10 of the springs 9 formed on the fixed piece 8 on both surfaces of the fixed piece 8, respectively. One pair is projected. In this embodiment, the guide member 11 is provided through the pin hole 8c (see FIGS. 9 and 10) of the fixed piece 8. The fixed piece 8 is fixed to the rear part of the cylinder lock 3 via the guide member 11. Further, a guide portion 12 through which the guide member 11 is passed and engaged is formed in the operating piece 7 in the shape of an elongated hole extending in the moving direction of the operating piece 7. In the case of this embodiment, the guide portion 12 is formed to have a width slightly larger than the diameter of the pin-shaped guide member 11, one of which is cut out from the storage hole 10 and formed into a groove shape, and the other is formed into a long hole shape. ing.

  The release mechanism 6 is formed of a cam member that is connected to the rear end of the rotor 3a and rotates together with the rotor 3a. The cam member as the release mechanism 6 is provided between the base ends 72 of the operation pieces 7 arranged in a spaced manner in the cylinder lock 3 with the outer peripheral surface engaged with the base ends 72. The height of the base end 72 and the above-described locking portion 71 is greatly different. In this embodiment, the cam member is formed in an elliptical cross section in a direction perpendicular to the axial direction of the rotor 3a, and is covered with a protrusion 3b having a reduced diameter at the rear end of the rotor 3a so as to be integrated with the rotor 3a. It is provided in the shape. In the present invention, when the cam member as the release mechanism 6 is rotated against the force of the spring 9 together with the rotor 3a when the cylinder lock 3 is unlocked, the locking portion 71 together with the operating piece 7 approaches each other. It moves to the direction to perform, and the latching state of the latching | locking part 71 and the lock hole 4a is cancelled | released.

Next, the operation of the present invention will be described.
First, as shown in FIG. 1 and the like, the user fixes one end 1 a of the cable 1 to a fixed object 2 such as a desk leg, and then grips the cylinder lock 3 to connect the insertion portion 5 to the portable device 4. Insert into the lock hole 4a. As the operating piece 7 is inserted, the operating piece 7 is gradually moved so as to be pushed by the upper and lower mouth edges of the lock hole 4a and approach each other. When the engaging portion 71 completely enters the housing through the lock hole 4a, the operating piece 7 is restored to the original arrow shape by the restoring force of the spring 9, and the engaging portion 71 is located inside the lock hole 4a. Lock to the circumference. Thereby, the portable apparatus 4 is connected to the fixed object 2 through the product of the present invention.

  Thus, when the connection between the product of the present invention and the portable device 4 is released, first, the key 13 (see FIG. 2 etc.) is inserted into the key hole of the rotor 3a of the cylinder lock 3, and the rotor 3a is turned to unlock. . Then, the cam member as the release mechanism 6 rotates together with the rotor 3a, and the interval between the base ends 72 of the operating piece 7 is expanded as shown in FIG. At this time, in FIG. 6, FIG. 8, etc., the operation piece 7 on the near side moves upward while compressing the spring 9, and the upper side is pulled up to the position of the upper side of the protruding portion 8 a of the fixed piece 8. Further, the operation piece 7 on the back side moves downward while compressing the spring 9, and is pulled down to a position where the lower side coincides with the lower side of the fixed piece 8. As a result, the locking portions 71 of the operating pieces 7 are accommodated within the vertical width D2 of the protruding portion 8a of the fixed piece 8, so that the insertion portion 5 can be pulled out and the insertion portion 5 and the portable device 4 can be connected. Can be canceled.

In the above place, the present invention is realized by forming a guide groove for guiding the operating piece 7 and the fixed piece 8 in the rear portion of the cylinder lock 3 in place of the guide member 11 in the above example. good.

It is principal part sectional drawing which shows suitable one Embodiment of the locking tool of this invention. It is a principal part perspective view of the locking device same as the above at the normal time. It is a principal part expanded sectional view in the III-III line of FIG. It is a principal part perspective view of the normal time before insertion of a locking tool same as the above. It is principal part sectional drawing at the time of unlocking of a locking tool same as the above. It is a principal part perspective view at the time of unlocking of a locking tool same as the above. It is a principal part expanded sectional view in the VII-VII line of FIG. It is a principal part perspective view at the time of unlocking of a locking tool same as the above. It is a disassembled perspective view of an operation piece, a fixed piece, and a spring. A is a side view of the operation piece on the near side, B is a side view of the fixed piece, and C is a side view of the operation piece on the back side. FIG. 2 shows a normal state of the locking device, wherein A is a rear view of the cylinder lock, B is a cross-sectional view of the main part viewed from the right side of the cylinder lock, and C is a cross-sectional view of the main part viewed from the left side. FIG. 2 shows a state when the locking device is unlocked, in which A is a rear view of the cylinder lock, B is a cross-sectional view of main parts viewed from the right side of the cylinder lock, and C is a cross-sectional view of main parts viewed from the left side.

DESCRIPTION OF SYMBOLS 1 Cable 1a One end 1b The other end 2 Fixed object 3 Cylinder lock 3a Rotor 4 Portable apparatus 4a Lock hole 5 Insertion part 5a Tip 6 Release mechanism 7 Operation piece 71 Locking part 72 Base end
8 fixed pieces 9 springs
10 storage holes
S space

Claims (3)

One end is formed of a cable connected to a fixed object and a cylinder lock connected to the other end of the cable. The cylinder lock is inserted into a lock hole of a housing of the portable device, A release mechanism for releasing the connection state between the part and the portable device, and the insertion part is formed of a pair of operating pieces that move toward and away from each other in a direction orthogonal to the axial direction of the rotor of the cylinder lock. In order to prevent theft of portable devices, a locking portion that locks to the inner peripheral edge of the lock hole is projected to the outside in the direction in which the operating piece contacts and separates at the tip of each operating piece. The locking part is formed by a pair of plate-like operating pieces and a plate-like fixed piece sandwiched between the operating pieces and in contact with the operating pieces . The tip is engaged in the insertion direction. Parts are shaped in a substantially arrow-shaped when viewed from the side of the cylinder lock by being formed into a tapered, in the same position in the cylinder lock of the operating piece and a fixed piece a rear portion of the cylinder lock, lock the insertion part hole , The operating piece is returned to the direction of separating from each other, which is the urging direction, and the tip of the insertion portion is restored to a substantially arrow shape in a side view of the cylinder lock, and the spring receiving hole for connecting the insertion portion to the portable device Is formed in the shape of a window, and a spring in which the width in the plate thickness direction and the spring diameter substantially coincide with the space formed by combining the respective storage holes, the spring pressure direction matches the moving direction of the operating piece housed by said release mechanism is connected to the rear end of the rotor is formed with a cam member that rotates together with the rotor, the cam member, the operation member disposed in spaced-shaped into the cylinder lock Between the base ends, this base end has an outer peripheral surface When the cam member is rotated against the force of the spring together with the rotor when the cylinder lock is unlocked, the locking portion moves together with the operating piece in the direction of approaching the locking portion. A locking device for preventing theft of a portable device, wherein the locked state between the lock hole and the lock hole is released. The antitheft locking device for a portable device according to claim 1, wherein a pin-shaped guide member for guiding the operating piece sandwiches a spring accommodation hole formed in the fixing piece on both sides of the fixing piece. And a guide portion through which the pin-shaped guide member is passed is formed in the operating piece in the shape of an elongated hole extending in the moving direction of the operating piece. Locking tool for theft prevention of mold devices. The antitheft locking device for a portable device according to claim 1 or 2, wherein a cross section of the cam member in a direction perpendicular to the axial direction of the rotor of the cylinder lock is formed in an elliptical shape. Locking tool for theft prevention of portable devices.

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