JP2007316688A - Antitheft device for portable electronic device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a means capable of separating easily a reinforcement plate made of a metal member for reinforcing an engagement part of a security lock used as an antitheft device for a portable type electronic device with an electronic device casing made of a thermoplastic resin member, in disposal of the portable electronic device. <P>SOLUTION: A recessed part 2c is formed on a rear cabinet 2 inner face of a lock key insertion through-hole reinforcement plate 15 peripheral part, in order to insert efficiently a bit 16a into an abutting face between a rear cabinet 2 and a lock key insertion through hole reinforcement plate 15, when separating the lock key insertion through-hole reinforcement plate 15 from the rear cabinet 2, by inserting the bit 16a of a driver 16 into the abutting face between the rear cabinet 2 and the lock key insertion through-hole reinforcement plate 15 made of the metal member attached onto the inner face of the rear cabinet 2 of the portable type electronic device made of a thermoplastic resin. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to theft damage in which portable electronic devices such as personal computers and liquid crystal televisions are taken away from stores during exhibitions, and portable electronic devices installed in offices are relocated without permission from predetermined installation locations. The present invention relates to an anti-theft device for a portable electronic device for preventing the above inconvenience, and more particularly to an engaging portion structure between a portable electronic device and a security lock constituting the anti-theft device.

With the progress of downsizing and weight reduction of personal computers, LCD TVs, video cameras, and other portable electronic devices, the portable electronic devices are frequently taken away during store display, and thefts are not frequent. In some cases, the portable electronic device installed at a place where a large number of specific parties come in and out is relocated without permission from the person in charge of management, and there is a difficulty in facility management. In order to deal with these problems, one end of a steel wire for locking the portable electronic device is locked to a rigid fixed object such as an exhibition stand or a desk, and the other end of the steel wire is connected to the portable electronic device. As an anti-theft device for electronic devices that are locked to the housing, a security lock called “Kensington Lock (trade name)” shown in FIG. 1B is widely applied as a de facto international standard, As seen in Patent Document 1, an invention relating to the security-lock function expansion has also been made.

FIG. 1B is an enlarged perspective view of the security lock described above. One end of the locking steel wire 12 is fixed to the security lock 11, and the other end of the locking steel wire 12 is locked to a rigid fixed object such as an exhibition stand. As shown in FIG. 1B, the surface perpendicular to the rotation axis of the lock key 11a at the tip of the security lock 11 is rectangular, and the rear cabinet of the liquid crystal television 1 as an example of the portable electronic device shown in FIG. The lock key 11a and the lock key base 11b of the security lock 11 are inserted into the rectangular lock key insertion hole 5 formed in the hole 2.

With the lock key 11a and the lock key base 11b inserted into the lock key insertion hole 5 of the rear cabinet 2, the key 13 shown in FIG. 1 (b) is inserted into the key hole 11c of the security lock 11, and the security lock 11 By rotating around the axis, the lock key 11a rotates 90 degrees along the chain line arrow as shown by a dotted line in FIG. 1 (b) and becomes orthogonal to the lock key base 11b. Is engaged with a lock key insertion hole 2a formed in the rear cabinet 2.

However, when the liquid crystal television 1 secured to a rigid fixed object by the security lock 11 and the securing steel wire 12 is strongly pulled due to intention such as removal, the back of the liquid crystal television 1 made of a thermoplastic resin member. Excessive mechanical stress is applied to the lock key insertion hole 5 of the cabinet 2, the lock key insertion hole 5 is destroyed, and the lock key 11 a at the tip of the security lock 11 is detached from the lock key insertion hole 5 of the rear cabinet 2, It becomes impossible to achieve the anti-theft purpose of the liquid crystal television 1.

In order to deal with the above problem, a lock key insertion hole reinforcing plate 15 is attached and reinforced to the lock key insertion hole 22a formed in the rear cabinet 22 of the liquid crystal television as shown in FIG. A rectangular lock key insertion hole 15a through which the lock key 11a at the tip of the security lock 11 shown in FIG. 1 (b) is inserted is formed substantially at the center of the lock key insertion hole reinforcing plate 15. Further, a plurality of welding holes 15b are formed on both sides of the lock key insertion hole 15a. A plurality of reinforcing plate welding studs 22b molded integrally with the rear cabinet 22 are inserted into a plurality of welding holes 15b formed in the lock key insertion hole reinforcing plate 15, and the lock key insertion hole reinforcing plate 15 is inserted. By pressing the protruding portion of the reinforcing plate welding stud 22b from the welding hole 15b with a hot iron heated to a temperature exceeding the softening temperature of the thermoplastic resin member, the leading end portion of the protruding portion of the reinforcing plate welding stud 22b becomes an umbrella. The lock key insertion hole reinforcing plate 15 is fixed to the rear cabinet 22.
JP 2000-137542 A

A security lock used as a theft prevention device for a portable electronic device is a metal lock key insertion hole reinforcing plate that reinforces a lock key insertion hole that engages with the portable electronic device casing made of a thermoplastic resin member. Provided is a means that allows easy separation at the time of disposal of the used portable electronic device and enables resource separation for resource reuse.

The lock key part of the security lock attached to the end of the steel wire for locking to prevent theft and movement of portable electronic devices such as personal computers and LCD TVs is placed on the resin casing of the portable electronic device. In the antitheft device for the portable electronic device comprising a lock key insertion hole reinforcing plate that reinforces the lock key insertion hole of the security lock provided, the inner surface of the resin casing with which the lock key insertion hole reinforcing plate abuts Reinforcing the metal lock key through-hole from the resin casing when the portable electronic device is disposed of after being used by inserting a wedge-shaped jig such as a driver bit into the recess. Efficient material separation work by separating the plates easily.

Resin with which a lock key insertion hole reinforcing plate abuts a wedge-shaped jig such as a driver bit in the antitheft device of the portable electronic device at the time of disassembly work and resource sorting work accompanying disposal after use of the portable electronic equipment When the metal lock key insertion hole reinforcing plate is separated from the resin casing by being inserted into a recess formed in a part of the inner surface of the made casing, the lock key insertion hole reinforcing plate is deformed, making disassembly difficult. In order to prevent this, a reinforcement bend is formed on at least one side of the lock key insertion hole reinforcing plate.

By forming a recess in a part of the inner surface of the resin casing where the lock key insertion hole reinforcing plate abuts, a driver's gap is formed between the resin casing and the surface where the metal lock key insertion hole reinforcing plate abuts. Inserting a wedge-shaped jig such as a bit to easily separate the metal lock key insertion hole reinforcing plate from the resin casing, and disassembling work and resource sorting work after use of the portable electronic device To promote the reuse of resources.

In the operation of separating the metal lock key insertion hole reinforcing plate from the resin casing at the time of disassembling work after the use of the portable electronic device by forming a reinforcement bend on at least one side of the lock key insertion hole reinforcing plate By improving the rigidity of the lock key insertion hole reinforcing plate and preventing the deformation, it is possible to improve the efficiency of the operation of separating the lock key insertion hole reinforcing plate from the resin casing.

FIG. 1A is a rear perspective view of a liquid crystal television as an example of a portable electronic device showing a first embodiment of the present invention. In FIG. 1A, 2 is a rear cabinet, 3 is a carrying handle, and 4 is a stand when the liquid crystal television is used as a desktop type. A rectangular lock key insertion hole 5 is formed in the rear surface of the rear cabinet 2, and the lock key 11 a and the lock key base 11 b of the security lock 11 shown in FIG. Is done.

FIG. 1B is an enlarged perspective view of the security lock 11. One end of a locking steel wire 12 is fixed to the security lock 11, and the other end of the locking steel wire 12 is locked to a rigid fixed object such as an exhibition stand. As shown in FIG. 1B, the surface perpendicular to the rotation axis of the lock key 11a at the tip of the security lock 11 is rectangular, and the rear cabinet of the liquid crystal television 1 as an example of the portable electronic device shown in FIG. The lock key 11 a and the lock key base 11 b of the security lock 11 are inserted into the rectangular lock key insertion hole 5 formed in the hole 2.

When the liquid crystal television 1 locked to a rigid fixed object by the security lock 11 and the locking steel wire 12 is pulled strongly by intention such as removal, the rear cabinet 2 of the liquid crystal television 1 made of a thermoplastic resin member. Excessive mechanical stress is applied to the lock key insertion hole 5 and the lock key insertion hole 5 is destroyed, and the lock key 11a at the tip of the security lock 11 is detached from the lock key insertion hole 5 of the rear cabinet 2, It becomes impossible to achieve the anti-theft purpose of the liquid crystal television 1.

In order to deal with the above problem, as shown in FIG. 2, a lock key insertion hole reinforcing plate 15 made of a metal member is formed on the inner surface side of the lock key insertion hole 5 formed in the rear cabinet 2 of the liquid crystal television 1. The breaking strength of the lock key insertion hole 5 formed in the rear cabinet 2 made of a resin member is improved. A plurality of reinforcing plate welding studs 2b molded integrally with the rear cabinet 2 are inserted into a plurality of welding holes 15b of the lock key insertion hole reinforcing plate 15, and a welding hole of the lock key insertion hole reinforcing plate 15 is inserted. The tip of the protruding portion of the reinforcing plate welding stud 2b is umbrella-shaped by pressing the protruding portion of the reinforcing plate welding stud 2b from 15b with a hot iron heated to a temperature exceeding the softening temperature of the thermoplastic resin. The lock key insertion hole reinforcing plate 15 is fixed to the rear cabinet 2.

FIG. 3 is a perspective view of the vicinity of the lock key insertion hole 2a formed in the rear cabinet 2 of the liquid crystal television in a state where the lock key insertion hole reinforcing plate 15 is not attached to the rear cabinet 2. FIG. A recess 2 c is formed on the inner surface of the rear cabinet 2 above the lock key insertion hole 2 a formed in the rear cabinet 2. When the lock key insertion hole reinforcing plate 15 is attached to the rear cabinet 2, a part of the recess 2c is exposed to the outside of the lock key insertion hole reinforcing plate 15 as shown in FIG. However, the lower part of the recess 2 c is covered with the lock key insertion hole reinforcing plate 15. FIG. 4B is a longitudinal sectional view cut along a cutting line indicated by a chain line AA in FIG.

5A is a perspective view showing the inner surface of the rear cabinet 2, and FIG. 5B is a longitudinal sectional view taken along a cutting line indicated by a chain line BB in FIG. 5A. The LCD 16 is discarded after use, and the bit 16a of the driver 16 is moved backward to separate the lock key reinforcing plate 15 made of metal material from the rear cabinet 2 made of resin material in order to separate the components by component for the purpose of resource reuse. A reinforcing plate welding stud 2b formed integrally with the rear cabinet 2 by inserting the bit 16a into a recess 2c formed on the inner surface of the rear cabinet 2 at the contact surface between the cabinet 2 and the lock key reinforcing plate 15. The lock key reinforcing plate 15 can be separated from the rear cabinet 2 by breaking.

However, when the rigidity of the lock key reinforcing plate 15 is insufficient, when the bit 16a of the driver 16 is inserted into the recess 2c as shown in FIG. 5, the lock key reinforcing plate 15 is deformed and integrated with the rear cabinet 2. In some cases, the reinforcing plate welding studs 2b formed on the rear side are not destroyed, and it becomes impossible to separate the lock key reinforcing plate 15 from the rear cannula 2. For this reason, as shown in FIG. 6 as the second embodiment of the present invention, at least one side of the lock key insertion hole reinforcing plate 25 straddling the recess formed between the lock key insertion hole reinforcing plate 25 and the inner surface of the rear cabinet. By forming the reinforcement bend 25c as shown in FIG. 6, the reinforcement bend 25c improves the rigidity of the lock key reinforcement plate 25, and the work of separating the lock key reinforcement plate 25 from the rear cabinet can be performed reliably.

FIG. 1 is a rear perspective view of a liquid crystal television according to the present invention, and FIG. 1B is an external perspective view of a security lock for locking an electronic device and a steel wire for locking. 2A is a perspective view of the inner surface of the rear cabinet of the liquid crystal television shown in FIG. 1, and FIG. 2B is an enlarged perspective view of a security lock engaging portion formed in the rear cabinet. It is a perspective view of the lock key penetration hole vicinity drilled in the back cabinet of the liquid crystal television in the state which does not attach a lock key penetration hole reinforcement board. 4A is a perspective view showing a state in which a lock key insertion hole reinforcing plate is attached to the lock key insertion hole on the inner surface of the rear cabinet, and FIG. 4B is along a cutting line AA in FIG. It is the longitudinal cross-sectional view cut | disconnected by. FIG. 5A is a perspective view showing a state in which a driver bit is inserted into a recess formed in the abutting surface of the rear cabinet inner surface and the lock key insertion hole reinforcing plate, and FIG. 5B is a view in FIG. It is a longitudinal cross-sectional view along the cutting line BB shown in FIG. It is a perspective view of the lock key penetration hole reinforcement board which formed reinforcement bending. It is a perspective view which shows the prior art example of the lock key penetration hole part of a back cabinet inner surface.

Explanation of symbols

1: LCD TV 2: Rear cabinet 2a: Lock key insertion hole 2b: Reinforcing plate welding stud 2c: Recess 3: Carrying handle 4: Stand 5: Lock key insertion hole 11: Security lock 11a: Lock key 11b: Lock key base 11c: Key hole 12: Locking steel wire 13: Key 15: Lock key insertion hole reinforcing plate 15a: Lock key insertion hole 15b: Welding hole 16: Driver 16a: Bit 22: Rear cabinet 22a: Lock key locking hole 22b: Reinforcing plate welding stud 25: Lock key insertion hole reinforcing plate 25a: Lock key insertion hole 25b: Welding hole 25c: Reinforcement bending portion

Claims (2)

For the purpose of preventing theft and movement of portable electronic devices such as personal computers and liquid crystal televisions, the lock key portion of the security lock attached to the end of the steel wire for locking is attached to the resin casing of the portable electronic device. In the antitheft device for a portable electronic device in which a reinforcing plate is disposed in a lock key insertion hole formed in the resin casing for engagement, one of the inner surfaces of the resin casing that the reinforcing plate contacts An anti-theft device for portable electronic equipment, characterized in that a recess is provided in the part. The antitheft device for a portable electronic device according to claim 1, wherein a lock key insertion hole reinforcing plate is provided on at least one side of the outer shape of the lock key insertion hole reinforcing plate straddling a recess provided on the inner surface of the resin casing. An anti-theft device for portable electronic equipment, characterized by forming a reinforced bend.

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