JP2007332578A - Security lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a security lock which is equipped with a lever for swinging an engaging member, and which can be easily attached to a rectangular slit. <P>SOLUTION: This security lock comprises a connecting implement which is attached to the rectangular slit of an appliance, and a cable which is linked to the connecting implement. The connecting implement 20 comprises: a casing 30 which is linked to the cable 100, and the opening of which is provided on the side of a leading end; a first engaging member 90 which is almost vertically protruded in an axial direction from the leading end of the casing, and in which a claw piece 91 is formed at a leading end; a second engaging member which is arranged in parallel with the first engaging member in an axial direction from the opening, the leading end of which has a claw piece 96, which is supported swingably with respect to the first engaging member, in which an engaging groove 98 is provided in a recessed state on the side of a base end, and which is laterally provided with the lever 99 for swing; an urging member 95 for urging the second engaging member; a regulation member 80 which is arranged slidably toward the second engaging member, and the leading end of which is engaged with the engaging groove so as to regulate the swing of the second engaging member; and a locking means 40 for the regulation member. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a security lock capable of connecting cables to devices such as desktop computers, notebook computers, liquid crystal displays, and other personal computer related devices in order to protect them from being taken out or stolen.

In notebook computers and liquid crystal displays, a rectangular slit is opened in the casing, and a connector with one end of the cable connected to the slit is inserted, and the other end of the cable is attached to a fixed object such as a pillar or desk. By hanging, these instruments are prevented from being taken out or stolen (see, for example, Patent Document 1).
The connector has a first engagement member fixed to the casing and a second engagement member that rotates with respect to the first engagement member and has a claw piece at the tip. The engagement member is rectangular. The coupling tool is fixed to the rectangular slit by rotating or swinging the second engagement member in a state of being fitted in the slit.

Japanese Patent Laid-Open No. 10-508917

The connecting tool incorporates locking means such as an 80,000 lock (also referred to as “80,000 tablets” or “tubular lock”). The 80,000 lock cylinder can be rotated integrally with the second engagement member. When the cylinder is rotated by a round key that locks and unlocks the 80,000 lock, the second engagement member rotates integrally. To do.
Therefore, attachment of the coupler to the rectangular slit requires the following procedure. First, a round key is inserted into the 80,000 lock, and the second engagement member is aligned with the first engagement member. In this state, the engaging member is inserted into the rectangular slit, the round key is twisted, and the second engaging member is rotated. Thereby, an engaging member engages with a rectangular slit and a connector is attached to an instrument. Then remove the round key.
To remove the connector from the rectangular slit, the procedure is the reverse of the above.

That is, in order to engage the engaging member with the rectangular slit, it is necessary to perform an operation such as twisting the round key while the engaging member is inserted into the rectangular slit. Sometimes it fell out of the slit.
Moreover, in order to confirm whether the shape of the coupling tool fits the rectangular slit of the instrument, there is a problem in that it is necessary to operate the round key even when the coupling tool is temporarily fixed to the instrument.

Although a twisted wire is generally used as the cable, the cable is only attached to the casing so as to be rotatable, and the end of the cable cannot be tilted. Therefore, the degree of freedom of the cable is low. .
However, since the rectangular slit of the instrument is generally formed on the side or back of the instrument, particularly on the notebook computer, it is close to the bottom surface. As a result, the cable is bent, and the return force of the cable makes it difficult to mount, and the usability may be deteriorated.

  An object of the present invention is to provide a security lock that includes a lever that swings an engaging member and can be easily attached to a rectangular slit.

In order to solve the above problems, the security lock of the present invention is:
In a security lock comprising a connector attached to a rectangular slit formed in the instrument to prevent theft of the instrument, and a cable connected to the connector,
The connector is
A casing in which one end of the cable is connected and has an opening on the tip side;
A first engagement member that protrudes substantially perpendicularly in the axial direction from the tip of the casing and has a claw piece extending in the lateral direction at the tip;
A claw piece is provided in parallel to the first engagement member in the axial direction from the opening of the casing, and has a claw piece formed in a direction opposite to the first engagement member at the tip, and with respect to the first engagement member A second engagement member supported so as to be capable of swinging, the second engagement member including an engagement groove recessed on the base end side, and a protrusion projecting within the swing surface, the tip of which is a side surface of the casing A second engagement member comprising a swing lever protruding from the
An urging member that urges the second engaging member in an inclined direction;
A regulating member that is slidably arranged toward the second engaging member, and whose tip engages with the engaging groove of the second engaging member to regulate swinging of the second engaging member;
Locking means for allowing and preventing sliding of the regulating member;
With

  It is desirable that the outer periphery of the casing has a cable stopper for rotatably connecting the cable, and the cable stopper supports the cable so that the cable can be tilted backward from the lateral direction.

  According to the security lock of the present invention, the biasing means aligns the inclined second engaging member with the first engaging member by operating the swing lever, and inserts the second engaging member into the rectangular slit of the instrument. Can do. When the swing lever is released in this state, the second engagement member returns to the inclined state again by the biasing force of the biasing means, and the engagement member engages with the rectangular slit. As a result, the coupling tool is attached to the instrument, and by operating the locking means from this state, the regulating member engages with the second engaging member, and the swinging of the second engaging member is regulated. The installation of the coupler is completed.

  In addition, according to the security lock of the present invention, the cable is not only rotatably attached to the connector, but also can be tilted rearward from the side of the casing. There is an advantage that the degree of freedom of the cable is high and the cable can be hardly bent.

Hereinafter, the security lock (10) of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of the security lock 10 of the present invention, and FIG. 2 is an exploded view. 3 is a bottom view of the connector (20), FIG. 4 is a side view, and FIG. 5 is a rear view. 6 to 9 are cross-sectional views of the connector (20). FIGS. 6 to 8 are cross-sectional views taken along line AA in FIG. 3, and FIG. 9 is a cross-sectional view along line B-- in FIG. It is sectional drawing which follows B. More specifically, FIGS. 6 and 7 are views in which the locking means (40) is in an unlocked state, and FIG. 7 is a view in which the second engaging member (94) is swung, FIGS. 8 is a diagram showing the locking means (40) in a locked state.

  As shown in FIG. 1, the security lock (10) includes a connector (20) connected to a rectangular slit formed in a housing of a device such as a personal computer, and a cable connected to the connector (20) ( 100). In FIG. 1, the cable (100) is shown by being bundled by the cable locking members (107), (107), and (107), but when actually used, the cable locking members (107) (107) (107) is removed as appropriate.

As shown in FIGS. 1 to 5, the connector (20) includes a cylindrical first casing (22) that forms a base-end-side outer shell of the connector (20), and the first casing (22). A second casing (30) is rotatably connected to the distal end side and forms a distal outer shell of the connector (20).
From the tip of the second casing (30), the tips of the engaging members (90), (90), (94) that fit into the rectangular slits of the instrument protrude, and inside the casings (22), (30), Support means (70) for supporting the engaging members (90), (90), (94), a restricting member (80) for restricting the swing of the engaging member (94), and a lock for retracting the restricting member (80) Means (40).

The first casing (22) is open at both ends as shown in FIGS. 2 and 6 to 9, and as shown in FIGS. A cable stopper (23) is provided so as to support 100) in a rotatable and tiltable manner.
The cable stopper (23) is connected to the insertion hole (24) for inserting a ball joint (101) (described later) attached to the tip of the cable (100), and is continuous with the insertion hole (24). A receiving portion (25) for rotatably supporting (101) is provided, and a guide groove (26) for guiding the ball joint (101) to be tiltable is provided in the receiving portion (25). The guide groove (26) opens from the side of the first casing (22) toward the base end, and supports the cable (100) so that it can tilt from the side of the connector (20) toward the rear. is doing. Further, the guide groove (26) is formed to be narrower than the receiving portion (25) to prevent the ball joint (101) from falling off.

As shown in FIG. 2, the second casing (30) is closed at the distal end side, and a rectangular opening (31) through which the engaging members (90), (90) and (94) protrude from the distal end closed surface. Has been established. The base end side of the second casing (30) is opened as shown in FIG. 6 and the like, and a step portion (32) that fits at the tip end of the first casing (22) is formed on the base end peripheral surface. ing.
Further, as shown in FIG. 9, a fixing hole (33) for connecting the second casing (30) integrally with support means (70) to be described later is formed on the side surface of the second casing (30). On the base side surface of the second casing (30), as shown in FIG. 6 and the like, a notch (34) for projecting a swing lever (99) of a second engagement member (94) described later is provided. Is formed.
A soft cushioning member (37) is attached to the tip of the second casing (30) to prevent wobbling of the connector (20) when the connector (20) is attached to the device. The buffer member (37) has an opening (38) at a position corresponding to the opening (31) of the second casing (30).

  Cylindrical support means (70) is accommodated inside the casing (22) (30), and the support means (70) includes engagement members (90) (90) (94), a base on the tip side. The biasing means (82), the regulating member (80), and the locking means (40) are accommodated on the end side.

As shown in FIG. 2 and the like, the support means (70) is a cylindrical member, the distal end side is formed with a small diameter, and the proximal end peripheral surface is in contact with the proximal end of the first casing (22). A collar member (71) is projected.
A recess (72) having a rectangular cross section is formed on the tip side of the support means (70) as shown in FIGS. A slide hole (73) communicating with the notch (34) of the second casing (30) is formed on the short side surface of the recess (72). A mounting hole (74) to which the urging member (95) for urging the second engagement member (94) is attached is formed on the opposing surface.
Further, as shown in FIGS. 2 and 9, support holes (75) and (75) for supporting a swing support shaft (70a) to be described later are opened at the approximate center of the long side surface of the recess (72). ing. A bottomed fixing hole (76) communicating with the fixing hole (33) of the second casing (30) is formed on the base end side of the support hole (75). With the second casing (30) covered with the support means (70), the fixing hole (33) and the fixing hole (76) are aligned, the fixing pin (35) is inserted, and the support means (70 ) And the second casing (30) are fixed.
As shown in FIGS. 6 to 9, a through hole (77) having a rectangular cross section is formed in the bottom surface of the recess (72), and a regulating member (80) to be described later is formed in the through hole (77). Can be infested.

  On the proximal end side of the support means (70), a lock means accommodating portion (78) having a circular cross section is formed. The accommodating portion (78) communicates with the recess (72) through the through hole (77), and a lock means (40) is provided on the peripheral surface of the accommodating portion (78) as shown in FIG. A slide guide (79) that guides the slidably is established. Further, at a position facing the slide guide (79), a locking hole (79a) into which the locking rod (61) of the locking means (40) is fitted in a retractable manner on the tip side of the slide guide (79). ) Has been established.

  As shown in FIGS. 2 and 6 to 9, the lock means accommodating portion (78) includes an urging means (82) and a lock means (40) having a restricting member (80) protruding therein. Is done. The urging means (82) urges the lock means (40) toward the base end side in the support means (70). An example of the biasing means (82) is a conical spring as shown in the figure.

As the lock means (40) accommodated in the lock means accommodating portion (78), a so-called 80,000 lock can be exemplified. A well-known thing can be used for 80,000 lock.
For example, as shown in FIG. 2, a first disc body (50) arranged inside a lock cylinder (41) so as to be rotatable by a round key (110) and slidable to the lock cylinder (41), and a lock cylinder (41) and a second disk body (60) slidably arranged.

The lock cylinder (41) is slidably fitted in the lock means accommodating portion (78) of the support means (70). As shown in FIGS. 2 and 6, etc., on the peripheral surface of the lock cylinder (41), the guide member (42) and the slide member (79) formed at the lock means accommodating portion (78) are opposed to each other. A hole (44) for attaching the holding ring (43) of the guide member (42) is formed. Further, the locking means (40) is pushed most in the housing portion (78), and the locking hole (45) on the lock cylinder (41) side is positioned at a position facing the locking hole (79a) of the housing portion (78). ) Has been established.
Further, a wide recess (46) is formed on the inner surface of the lock cylinder (41) so that the first disk body (50) can rotate and slide by a predetermined angle. Further, a groove (47) narrower than the recess (46) is formed so as to be able to slide the second disc body (60) facing the recess (46).
On the proximal end side of the lock cylinder (41), a hook (48) is formed inward so that the first disc body (50) does not fall off.

The first disc body (50) includes an annular insertion hole (51) into which the round key (110) is inserted, and a plurality of tumbler holes (52) (52) formed along the insertion hole (51). Have Tumbler pins (53) and (53) are inserted into the tumbler holes (52), respectively. The length of the tumbler pins (53) and (53) varies depending on the concave grooves (111) and (111) formed on the circumferential surface of the round key (110), and the round key (110) is inserted into the insertion hole ( When the tips of the tumbler pins (53) and (53) are aligned in the state of being inserted into 51), the first disk body (50) can be rotated with respect to the second disk body (60) and unlocked. The base ends of the tumbler pins (53) and (53) are partially prevented from falling off by hitting the hooks (48) of the lock cylinder (41). 4
On the peripheral surface of the first disc body (50), a ridge (54) is formed that fits into the recess (46) inside the lock cylinder (41). The protrusion (54) is formed to be narrower than the recess (46), and the first disc body (50) is accommodated in the lock cylinder (41) and rotated at a predetermined angle and shaft. Directional sliding is allowed.
Further, a release piece (55) for retracting a locking rod (61) of the second disk body (60), which will be described later at the time of unlocking, projects from the tip of the first disk body (50) at an eccentric position. Yes.

The second disc body (60) is formed with a protrusion (62) slidably fitted in the groove (47) of the lock cylinder (41) on the peripheral surface, and the second engagement member (94) at the tip. A restricting member (80) having a rectangular cross section for preventing the oscillation of the projection is provided.
The second disc body (60) has a plurality of bottomed tumbler holes (63) communicating with the tumbler holes (52) of the first disc body (50) in the unlocked state. As shown in FIGS. 2 and 6, etc., tumbler pins (64) and (64) are inserted into the tumbler holes (63), and the tumbler pins (64) and (64) are springs (65) (65 ) Is biased toward the base end side.

Further, as shown in FIGS. 2 and 6, etc., the second disc body (60) has a circular recess (66) into which the release piece (55) of the first disc body (50) enters, as shown in FIGS. ) Is formed, and holes (67) and (68) are formed in the bottom portion of the recess (66) so as to communicate with the recess (66) and pass through the circumferential surface of the second disc body (60). Yes. The hole (67) may be semicircular in cross section, and the hole (68) may be circular in cross section.
A locking rod (61) having a semicircular tip cross section is slidably inserted into the semicircular hole (67). The base end of the locking rod (61) has a cylindrical shape, and can be moved backward by being pushed by the release piece (55) of the first disc body (50).
A guide member (42) having a small diameter at the tip is inserted into the circular hole (68) by a holding ring (43).
A compression coil spring (69) is inserted between the locking rod (61) and the guide member (42), and pushes the locking rod (61) outward from the semicircular hole (67). Energized.

The engaging members (90), (90), (94) housed in the recesses (72) of the support means (70) are a pair of left and right first engaging members (90), (90) that cannot swing, The second engaging member (94) is provided between the first engaging members (90) and (90) and is supported so as to be swingable and fixable.
The first engaging members (90) and (90) and the second engaging member (94) protrude from the opening (31) of the second casing (30), respectively, and have claw pieces extending laterally at the tips ( 91) (91) (96) are formed. The claw pieces (91) and (91) of the first engagement members (90) and (90) and the claw pieces (96) of the second engagement member (94) are formed in opposite directions.
The engaging members (90), (90), (94) are provided with support holes (92), (92), (97) for loosely fitting the swing support shaft (70a), respectively.

The base end side of the first engagement member (90) (90) is formed wide so that it can be fitted in the recess (72) of the support means (70) so as not to swing. Engagement grooves (93) and (93) into which the member (80) is fitted are formed.
Further, the base end side of the second engagement member (94) is formed to be narrow so as to be swingable within the recess (72), and at the center of the base end side, the regulating member (80) An engagement groove (98) into which is fitted is formed.
Further, from the side surface of the second engagement member (94), a swing lever (99) that can be operated by the user is projected, and the swing lever (99) is mounted on the swing support shaft (70a). , Projecting from the slide hole (73) of the recess (72), and the tip projecting from the notch (34) formed in the second casing (30).

  A cable (100) is attached to the connector (20). As shown in FIG. 2, the cable (100) has a ring (105) formed at one end and a mounting hole (106) for press-fitting the ball joint (101) at the other end. . The spherical joint (101) is composed of a spherical portion (102) whose outer peripheral shape is substantially spherical and a flange portion (103) extending from the spherical portion (102), and the tip of the flange portion (103) is retained (104). Is installed around.

  The ball joint (101) is inserted into a cable stopper (23) formed in the first casing (22). The ball joint (101) is inserted into the cable (100) with the collar (103) inserted from the receiving part (25) side of the cable stopper (23) and the retaining part (104) passing through the guide groove (26). Press fit into the mounting hole (106).

  By attaching the cable (100) to the connector (20), the security lock (10) of the present invention is produced.

  With respect to the security lock (10) having the above configuration, the operation of the locking means (40) and the swinging operation of the second engagement member (94) will be described.

  First, hang the cable (100) on a fixed object such as a pillar or desk leg, and insert the connector (20) into the ring (105) of the cable (100) to secure the security lock (10) to the fixed object. Install.

In this state, the security lock (10) is connected to the instrument.
In FIG. 6, the second engagement member (94) is displaced from the first engagement member (90) by the urging force of the urging member (95). From this state, when the swing lever (99) is pulled in the direction of arrow A in FIG. 6, the second engagement member (94) swings about the swing support shaft (70a), as shown in FIG. The first engagement member (90) and the second engagement member (94) overlap. Thereby, the engaging members (90) and (94) can reduce the thickness of the second engaging member (94) in the swinging direction, and can be easily inserted into the rectangular slit of the instrument.
When the user releases his / her hand from the swing lever (99), the second engaging member (94) is moved by the urging force of the urging means (82) as shown in FIG. ) To return to a misaligned position. Thereby, the claw pieces (91) and (96) of the engaging members (90) and (94) are hooked on the rectangular slit, and the connector (20) is attached to the rectangular slit of the instrument.

  From this state, the connector (20) can be removed from the rectangular slit by pulling the swing lever (99) again in the direction of arrow A in FIG. Therefore, the connector (20) can be temporarily fixed to the instrument without unlocking with the round key (110).

  The cable (100) is rotatable with respect to the connector (20) when the connector (20) is attached to the device or in a state where the connector (20) is attached to the device, and the guide groove ( 26) can be tilted from the side to the rear. The second casing (30) from which the engaging members (90) (94) protrude is rotatable with respect to the first casing (22). Therefore, the degree of freedom of the cable (100) with respect to the connector (20), particularly the engaging members (90) and (94) is high, the cable (100) is difficult to bend, and an excessive force is unlikely to act on the cable (100). . Therefore, for example, when attaching the connector (20) to the instrument in a narrow work space, or after moving the instrument on the desk after connecting the security lock (10), or moving the instrument near an obstacle such as a wall. The cable (100) rotates and tilts relative to the connector (20) even when the second casing (30) rotates relative to the first casing (22) within the connector (20). Therefore, the workability can be improved, and the load applied to the cable (100), the coupling tool (20), the rectangular slit of the instrument can be reduced as much as possible, and the breakage of these can be prevented.

In order to fix the connector (20) to the rectangular slit, as shown in FIG. 8, the base end of the locking means (40) is pushed in from the state of FIG. When the locking means (40) is pushed from the base end against the urging force of the urging means (82), the restricting member (80) is engaged with the engaging groove (93) of the engaging members (90) (90) (94). ) (93) (98) and the second engagement member (94) becomes unable to swing. Further, the locking rod (61) is fitted into the locking hole (79a) of the support means (70), and the locking means (40) cannot be retracted.
As a result, the connection between the device and the connector (20) is completed, and the device is connected to a fixed object such as a pillar via the connector (20) and the cable (100) to protect against theft or removal. be able to.

The connector (20) can be removed from the instrument in the following manner.
First, the round key (110) is inserted into the insertion hole (51), and the tumbler pins (53) and (53) are aligned by the concave grooves (111) and (111) of the round key (110). When the round key (110) is rotated from this state, the first disk body (50) rotates with respect to the second disk body (60), and the release piece (55) is used for locking from the locking hole (79a). Retract the rod (61). When the locking rod (61) comes out of the locking hole (79a), the urging force of the urging means (82) causes the locking means (40) to move to the proximal side as shown in FIG. 6 from the state of FIG. The restricting member (80) that has been pushed back and restricts the second engaging member (94) from swinging is disengaged from the engaging groove (98) of the second engaging member (94), and the second engaging member (94) is in a swingable state. When the locking means (40) is retracted and unlocked, the round key (110) may be removed from the connector (20).

  After unlocking, when the swing lever (99) is pulled in the direction of arrow A in FIG. 6, the second engagement member (94) swings about the swing support shaft (70a). As shown, the first engagement member (90) and the second engagement member (94) overlap. As a result, the engaging members (90) and (94) can be pulled out from the rectangular slit of the instrument, the connection with the instrument is released, and the instrument can be moved.

  In the above embodiment, the first engagement member (90) is supported by the support shaft (70a), but the first engagement member (90) may be formed directly on the second casing (30). Good. Further, the support shaft (70a) may be structured to be supported by the first engagement member (90) without penetrating the support means (70). The first engagement member (90) has a pair of left and right structures sandwiching the second engagement member (94), but may be either one.

  INDUSTRIAL APPLICABILITY The present invention is useful as a security lock that can be temporarily connected by connecting to an instrument and operating a lever without a key. Further, since the cable has a high degree of freedom with respect to the connection tool, it is difficult to apply an excessive force to the cable, and the cable is useful as a security lock that facilitates connection to the device and arrangement of the device after connection.

It is a perspective view of the security lock of the present invention. It is an exploded view of the security lock of this invention. It is a bottom view of a coupling tool. It is a side view of a coupling tool. It is a rear view of a coupling tool. It is sectional drawing of the coupling tool in alignment with line AA of FIG. 3, Comprising: The unlocked state is shown. FIG. 4 is a cross-sectional view of the connector taken along line AA in FIG. 3, showing a state where the second engagement member is swung. It is sectional drawing of the coupling tool in alignment with line AA of FIG. 3, Comprising: The locked state is shown. It is sectional drawing of the coupling tool in alignment with line BB of FIG. 3, Comprising: The locked state is shown.

Explanation of symbols

(10) Security lock
(20) Connecting tool
(40) Locking means
(80) Restriction member
(90) First engaging member
(94) Second engaging member
(99) Swing lever
(100) Cable

Claims (2)

In a security lock comprising a connector attached to a rectangular slit formed in the instrument to prevent theft of the instrument, and a cable connected to the connector,
The connector is
A casing in which one end of the cable is connected and has an opening on the tip side;
A first engagement member that protrudes substantially perpendicularly in the axial direction from the tip of the casing and has a claw piece extending in the lateral direction at the tip;
It has a claw piece arranged in parallel to the first engagement member from the opening of the casing, and formed at the tip in a direction opposite to the first engagement member, and can swing with respect to the first engagement member. The second engagement member is supported by the engagement groove, and the second engagement member protrudes from the side surface of the casing. A second engagement member having a swing lever;
An urging member for urging the second engaging member in an inclined direction;
A regulating member that is slidably arranged toward the second engaging member, and whose tip engages with the engaging groove of the second engaging member to regulate swinging of the second engaging member;
Locking means for allowing and preventing sliding of the regulating member;
Security lock characterized by comprising.   2. The security lock according to claim 1, wherein a cable stopper for rotatably connecting the cable is provided on an outer periphery of the casing, and the cable stopper supports the cable so that the cable can be tilted rearward from the lateral direction. .

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