JP4474568B2 - Electronic device and rotatable display lock device - Google Patents

Description

  The present invention relates to an electronic device such as a communication device or a personal computer (hereinafter abbreviated as a personal computer) having a display unit for displaying information such as images and characters, and in particular, the display unit can be rotated with respect to the device body. The present invention relates to an electronic apparatus and a movable display lock device.

  In recent years, node-type personal computers and portable communication devices equipped with a display panel such as a liquid crystal display have become increasingly lighter and smaller, and the number of users has greatly increased accordingly. However, in a general notebook computer or the like, the main body having a keyboard and the display having a display panel are connected to each other by a hinge so that the arrangement direction of the display cannot be freely set. For example, when a salesperson presents his / her products at a customer site, the display panel of a laptop computer is often rotated 180 ° instead of the salesperson side to explain to the customer side. It is very inconvenient for a normal computer.

  In order to solve this problem, the personal computer disclosed in Patent Document 1 shown below is provided with a tilt mechanism (connecting portion) 43 for opening and closing the liquid crystal display 42 in the main body 41 as shown in FIG. A rotation shaft 44 for rotating the liquid crystal display 42 is provided. The tilt mechanism 43 is also equipped with a lock mechanism 45. The lock mechanism 45 includes a ball-shaped lock 46 for fixing the liquid crystal display 42. When the tilt mechanism 43 is rotated 180 °, the lock mechanism 45 has a ball-shaped lock. 46 is engaged to lock.

JP 09-282051

However, the configuration as shown in FIG. 17 has the following problems.
(1) The structure of the tilt mechanism becomes complicated. In the structure shown in FIG. 17, the tilt mechanism 43 that opens and closes the liquid crystal display 42 is equipped with the rotation shaft 44 and the lock mechanism 45 that rotate the screen 180 °. As the weight of the biaxial hinge mechanism 43 increases, the structure becomes complicated.
(2) It is difficult to suppress the backlash of the liquid crystal display. As shown in FIG. 17, the lock mechanism 45 for fixing the liquid crystal display 42 is provided in the tilt mechanism 43, so that the lock mechanism is longer than the horizontal length of the tilt mechanism 43. 45 cannot be provided away from the rotating shaft 44. In general, it is preferable to provide the lock mechanism 45 at a position as far as possible from the rotation shaft 44 in order to suppress the rotation play and the play in the gravity direction in the liquid crystal display 42. However, in the configuration of Patent Document 1, in order to increase the distance between the rotation shaft 44 and the lock mechanism 45, it is necessary to increase the left and right widths of the tilt mechanism 43, which not only increases the size of the tilt mechanism 43 but also increases the weight. Therefore, a large force is required to open and close the liquid crystal display 42.
(3) Low degree of design freedom In the configuration shown in FIG. 17, the lock mechanism 45 must be provided on the tilt mechanism 43 in order to rotate the liquid crystal display 42 in the opening / closing direction with respect to the main body 41. . For this reason, the arrangement | positioning position of the rotating shaft 44 and the lock mechanism 45 is restrict | limited, and the freedom degree of design becomes low.

  Depending on the configuration of the electronic device such as a portable communication terminal that allows viewing of TV broadcasts or a portable information terminal that transmits and receives e-mails and various information, the rotation axis is positioned away from the central width of the main unit. Although there is a demand to provide, it is difficult to satisfy the configuration shown in FIG.

  The present invention has been made in view of the above problems, and an object of the present invention is an electronic apparatus that can stably fix a display unit that can be opened and closed and rotated with respect to a main body unit with a relatively simple configuration. And providing a locking device thereof.

  An electronic apparatus according to the present invention opens and closes a first unit having a display panel for displaying information such as images and characters, a second unit having an operation unit on a main surface, and the first unit and the second unit. And at least one locking shaft provided at a predetermined distance from the rotation axis of the connection portion on the lower side of the first unit. A locking mechanism provided on a main surface of the second unit and engaged with the locking shaft of the first unit, and detachably holding the locking shaft. To do.

  According to the present invention, with a relatively simple configuration, it is possible to suppress the rotation backlash in the rotation direction of the display unit that can be opened and closed and rotated and the wobbling play in the gravity direction. On the other hand, it becomes possible to fix stably.

  An electronic apparatus according to an embodiment of the present invention includes a first unit having a display panel on which images, characters, or data are displayed (hereinafter also referred to as “display unit” as appropriate), data necessary for the display, and various types of data. A second unit containing an electronic circuit for processing information (hereinafter also referred to as a “main body part” as appropriate) and an input operation unit provided on the main surface of the main body part, and the connecting part is a main body; The display unit is connected to the unit so as to be openable and closable and rotatable. Here, a biaxial hinge having a rotating shaft that rotates the display unit with respect to the main body unit and an opening / closing shaft that opens and closes is employed as the connecting unit. In addition, at the lower position of the display portion, there is provided at least one locking shaft in which the axis of the opening / closing shaft of the biaxial hinge is aligned with the shaft center. A lock mechanism is provided that is rotatably supported.

  Since the lock mechanism rotatably supports the locking shaft, the lock mechanism functions as a single bearing in the opening / closing direction. Therefore, the main body can be configured even when the opening / closing mechanism (two-axis hinge mechanism) is mounted on the rotation shaft. In contrast, the display unit can be operated in the opening / closing direction. Since the biaxial hinge mechanism is provided on the rotating shaft, the biaxial hinge mechanism only needs to perform the original movement, and the configuration of the biaxial hinge mechanism does not increase in size or complexity. In addition, the length of the biaxial hinge mechanism is not limited, and the distance between the rotary shaft and the lock mechanism can be increased, so that the above-described rotation play and wobbling play can be reliably suppressed. Furthermore, the degree of freedom when the rotation axis of the display unit is provided in the main body can be increased. Embodiments of the present invention will be described below with reference to the drawings.

1. First Embodiment FIG. 1 is a perspective view of a notebook personal computer which is an electronic apparatus according to a first embodiment of the present invention, and FIG. 2 is a schematic diagram showing the relationship between a biaxial hinge mechanism, a rotating shaft and a locking shaft.

  The notebook computer 1 includes a display unit 2 (corresponding to the first unit) equipped with a display panel such as a liquid crystal display or an organic EL panel on which images, characters or data are displayed, and data necessary for display on the display panel. Or it has the main-body part 3 (equivalent to a 2nd unit) in which the electronic circuit which processes various information was incorporated, and the input operation part 4 provided in the main surface of the main-body part 3. FIG. The operation unit 4 is generally composed of a keyboard as shown in FIG. 1, but may be composed of a touch panel or the like. As the input operation unit, a touch panel may be mounted on the display screen of the display unit 2.

  The display unit 2 of the notebook computer 1 is connected to the main body unit 3 by a biaxial hinge mechanism provided at the central portion on the rear side of the main surface of the main body unit 3, and the opening / closing direction 2 a and / or the rotation direction with respect to the main body unit 3. 2b is freely rotatable. The notebook computer can be closed or opened by rotating the display unit 2 in the opening / closing direction 2a, and the display screen of the opened display unit 2 is directed in the opposite direction by rotating in the rotation direction 2b. be able to. The biaxial hinge mechanism is provided on the rotary shaft portion 5 for rotating the display portion 2 in the rotational direction 2b with respect to the main body portion 3, and the opening and closing direction of the display portion 2 with respect to the main body portion 3. And a biaxial hinge mechanism 6 that is rotated by 2a.

  Furthermore, according to the present embodiment, at least one locking shaft 7 is provided at a predetermined distance from the rotation shaft portion 5 on the lower side portion of the display portion 2, and the main body portion facing the lower side portion of the display portion 2. A lock mechanism 8 is provided at a position on the main surface 3 at a predetermined distance from the rotary shaft 5 so as to releasably hold the locking shaft 7 of the display unit 2. According to the present embodiment, the locking shaft 7 is configured by providing the notch portion 10 near the left and right ends of the lower side portion of the display portion 2 and horizontally placing the shaft body on the notch portion 10.

  As shown in FIG. 2, the rotation axis 11 a of the biaxial hinge mechanism 6 is aligned with the axis 12 of the locking shaft 7. An insertion passage 14 is formed in the rotary shaft portion 5 and the biaxial hinge mechanism 6, and a cable 13 connected from the main body portion 3 to the display portion 2 can be connected via the insertion passage 14. In FIG. 2, the rotation shaft portion 5 has a tubular shape, and the display portion 2 can rotate in the direction of the arrow 2 b with the axis 11 b as a rotation axis. 2 is an example of the biaxial hinge mechanism, and the present invention is directed to the display unit 2 in the opening / closing direction 2a and / or the rotational direction 2b. It is possible to adopt a biaxial hinge mechanism having an arbitrary structure that can be rotatably connected to.

  FIG. 3 is a longitudinal sectional view taken along line 3a-3a in FIG. 1 in a state where the lock mechanism and the locking shaft are engaged, and FIG. 4 is an exploded perspective view of the lock mechanism.

  The lock mechanism 8 is provided with a lock holder 19 that is urged by a coil spring 18 (corresponding to a first urging means) in a housing portion 17 that is recessed in the main body portion 3. A lock cover 20 is fixed on the accommodating portion 17. Since the entire coil holder 18 is urged upward by the coil spring 18, a tip portion of a claw member described later projects from the opening 21 of the lock cover 20.

  In the hook holder 19, the first claw member 22 and the second claw member 23 are supported by a lock pin 24 so as to be swingable, thereby constituting a clamping part. A compression coil spring 25 (corresponding to the second biasing means) that biases the upper end portion in the closing direction is interposed between the lower end portions of the first pawl member 22 and the second pawl member 23. The upper end portions of the 22 and the second claw member 23 are urged in the direction of sandwiching like “clothespin”.

  As shown in FIGS. 3 and 4, a receiving surface 26 and a shaft groove 27 are formed at the distal ends of the first claw member 22 and the second claw member 23. The receiving surface 26 is tapered (for example, C chamfered) so that when the first claw member 22 and the second claw member 23 are closed, the foremost portions of the claw members 22 and 23 have a valley-shaped inclined surface. It is composed by processing it. A shaft groove 27 (corresponding to a clamping recess) is provided below the receiving surface 26 so that the locking shaft 7 can smoothly rotate in a state where the first claw member 22 and the second claw member 23 are closed. The inner diameter is configured.

  The outer portion of the first claw member 22 or the second claw member 23 is a guide surface 29. The locking shaft 7 of the display unit 2 that has been rotated is guided by the guide surface 29 and smoothly guided onto the shaft groove 27. Such a guide surface 29 is preferably formed in a tapered shape (for example, C chamfered shape) as shown in FIG. 3 or a gently changing curved surface.

  A pressing piece 28 of the lock holder 19 protrudes on the rear surface side of the main body 3 of the housing part 17, and the pressing piece 28 is lowered by the fingertip against the coil spring 18, whereby the upper surface of the main body part of the claw members 22 and 23. The projecting width from can be reduced.

  5 to 10 are partial cross-sectional views for explaining the engaging operation between the locking shaft and the locking mechanism, and the operation will be described with reference to FIGS.

  As shown in FIG. 5, when the display unit 2 is rotated, the locking shaft 7 at the left and right ends of the display unit 2 contacts either the first claw member 22 or the second claw member 23 depending on the rotation direction. . 5-7 has shown the case where the 1st nail | claw member 22 is contacted.

  When the rotation of the display unit 2 further proceeds, as shown in FIG. 6, the locking shaft 7 moves to ride on the first claw member 22 by the action of the guide surface 29, and the force due to the movement of the locking shaft 7 is The force is transmitted to the lock holder 19 via the lock pin 24, and the force is pushed down together with the lock holder 19. In this state, the coil spring 18 is compressed, and when the locking shaft 7 is positioned on the valley-shaped receiving surface 26 as shown in FIGS. As shown in FIG. 10, the distal ends of the first claw member 22 and the second claw member 23 to be closed by the compression coil spring 25 are opened, and the locking shaft 7 is introduced into the shaft groove 27 as shown in FIG. Become. When the locking shaft 7 is received in the shaft groove 27, the compression coil spring 25 urges the first claw member 22 and the second claw member 23 to close the distal ends, so that the locking shaft 7 is moved into the shaft groove 27. The locking shaft 7 can be stably held in the state of being caught.

  Thus, the coil spring 18 is compressed as the locking shaft 7 moves in the horizontal direction, and the protruding position of the receiving surface 26 can be lowered, and the action of the guide surface 29 and the receiving surface 26 enables smooth and stable operation. The locking shaft 7 can be guided into the shaft groove 27. Further, since the first claw member 22 and the second claw member 23 are closed at the same time when the locking shaft 7 is inserted into the shaft groove 27, there is also an advantage that a “click” sound is generated and it can be confirmed that it is firmly held. is there. Note that when the lock mechanism 8 and the locking shaft 7 are disengaged, the pressing piece 28 is moved downward with a finger.

  In this embodiment, the lock holder 19 is pushed downward by the movement of the locking shaft 7 in a direction parallel to the main surface of the main body 3 (that is, the lateral direction), and the engagement between the locking shaft 7 and the shaft groove 27 is reduced. In this configuration, the combination is automatically performed. The operator can also operate to push the pressing piece 28 downward with a finger in advance to lower the protruding position of the receiving surface 26 and guide the locking shaft 7 to the receiving surface 26.

  Further, as shown in FIGS. 1 and 2, in the present embodiment, the locking shaft 7 is supported by a shaft groove 27 extending in the longitudinal direction at a position away from the rotation center 11b of the rotation shaft portion 5, so The backlash angle becomes extremely small, and the backlash can be strongly suppressed as compared with the ball-shaped lock disclosed in Patent Document 1 described above.

2. Second Embodiment FIGS. 11 to 13 are partial cross-sectional views for explaining an engaging operation between a locking shaft and a lock mechanism according to a second embodiment.

  As shown in FIGS. 11 to 12, in the second embodiment, a through hole 31 is provided on the lower surface of the lock holder 19, and a tapered rib 32 (corresponding to a regulating member) extending upward from the through hole 31 is provided in the housing portion 17. Is provided. When the first claw member 22 and the second claw member 23 are pushed down by the movement of the locking shaft 7, the tapered surfaces 35 of the tapered ribs 32 open the leading ends of the first claw member 22 and the second claw member 23. The first claw member 22 and the second claw member 23 are configured to push the base side in the direction.

  With such a configuration, when the locking shaft 7 pushes down the front end portions of the first claw member 22 and the second claw member 23, the front end portion is urged by the tapered surface 35 so as to be positively opened. Therefore, the receiving operation of the locking shaft 7 from the receiving surface 26 to the shaft groove 27 can be performed smoothly.

  As shown in FIG. 14, instead of the tapered rib 32, a straight rib 33 having a chamfered contact portion is used as the restricting member, and the gap between the ribs 33 is set to the second claw member 22 and the second claw member 22. A similar effect can be obtained by making the distance between the rear end portions of the claw members 23 smaller. In this case, you may form the outer surface of the rear-end part of the 1st nail | claw member 22 and the 2nd claw member 23 in a taper surface.

3. Other Embodiments The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention. For example, although the compression coil spring is used as the biasing means in the above embodiment, the biasing means is not limited to the coil spring. For example, elastic means such as a torsion spring (torsion spring) 34 illustrated in FIG. 15 and a plate spring 34 illustrated in FIG. 16 may be used.

  Moreover, in the said Example, although the locking mechanism 8 is provided only in one end, it is also possible to hold | maintain the display part 2 more stably by providing in two places of both ends.

4). Various Aspects of the Present Invention According to the first aspect of the present invention, the lock mechanism can detachably hold the locking shaft so that the display unit can be held more stably. In particular, the locking mechanism pinches the locking shaft so that the locking mechanism can rotate freely, so that the locking mechanism functions as a bearing on one side in the opening and closing direction, and even with a configuration in which the biaxial hinge mechanism is mounted on the rotating shaft, The display panel can be operated in the opening / closing direction. Since the biaxial hinge mechanism is provided on the rotating shaft, the biaxial hinge mechanism only needs to perform its original movement, so the configuration of the biaxial hinge mechanism does not increase in size or complexity. In addition, the length of the biaxial hinge mechanism is not limited, and the distance between the rotary shaft and the lock mechanism can be increased, so that it is possible to reliably suppress rotation play and wobbling play. Furthermore, the degree of freedom when the rotation axis of the display panel is provided in the main body can be increased.

  According to the second aspect of the present invention, the lock mechanism is housed in the housing portion of the main body, and the support portion of the lock mechanism protrudes from the surface of the main body and is biased upward by the first biasing means in the housing portion. In this state, it can be moved up and down. Accordingly, the lock mechanism can be moved downward with respect to the lock shaft that has moved to the position where the lock mechanism is disposed by the rotation of the display unit, and the lock shaft can be supported by or removed from the lock mechanism. It becomes easy to do.

  According to the third aspect of the present invention, a lock holder that is urged by the first urging means is provided in the accommodating portion, and the first claw member and the second claw member are supported by the lock pin in the lock holder, A shaft groove as a holding recess is formed at the upper ends of the first claw member and the second claw member, and the first claw member and the second claw member are biased by the second urging means so as to prevent the shaft groove from spreading. It is energized. Thereby, when the locking shaft moves on the shaft groove, the first claw member and the second claw member are moved upward by the first urging unit and overcome the urging force of the second urging unit, A shaft groove between the first claw member and the second claw member opens to receive the locking shaft. Further, in the state where the locking shaft is held in the shaft groove, the first claw member and the second claw member are kept closed by the second urging means, so that the locking shaft is firmly fitted in the shaft hole. Can hold.

  According to the fourth aspect of the present invention, the outer portions of the first claw member and the second claw member serve as gentle guide surfaces, and the locking shaft that has been moved by the rotation of the display unit is smoothly placed on the shaft groove by the guide surfaces. Since it is configured to guide, the locking shaft can be smoothly guided into the shaft groove without applying an excessive force.

  According to the fifth aspect of the present invention, a trough-shaped receiving surface that temporarily holds the locking shaft is formed at the distal ends of the first claw member and the second claw member, and the locking shaft is passed through the receiving surface. Since it is configured to be guided into the shaft groove, the locking shaft can be reliably guided into the shaft groove.

  According to the sixth aspect of the present invention, a through hole is provided in the lock holder, a restriction member extending upward from the through hole is provided in the housing portion, and when the lock holder moves downward, the restriction member is a shaft groove. The lower end side of the first claw member and the second claw member is pushed from both sides in the opening direction. Thereby, when the lock holder moves downward, the shaft groove is positively opened, and it is easy to smoothly guide and remove the locking shaft into the shaft groove.

  In addition, it can also comprise so that the lock holder can be moved below against the 1st biasing means by protruding the press piece of a lock holder from an accommodating part, and moving the press piece below. When the operator moves the pressing piece downward, the amount of protrusion from the surface of the main body portion of the lock mechanism can be reduced to facilitate the introduction of the locking shaft, and the locking shaft can be easily taken out from the shaft groove. .

  The present invention can be applied to a display unit locking mechanism of an electronic device in which the display unit can be rotated biaxially, that is, can be opened and closed and rotated freely. The present invention can be applied to electronic devices having a structure that can be connected.

FIG. 1 is a perspective view of a notebook personal computer to which an embodiment of the present invention is applied. FIG. 2 is a schematic diagram showing the relationship between the biaxial hinge mechanism, the rotating shaft, and the locking shaft in the present embodiment. 3 is a longitudinal sectional view taken along line 3a-3a in FIG. 1 in a state where the lock mechanism and the locking shaft are engaged. 4 is an exploded perspective view of the lock mechanism shown in FIG. FIG. 5 is a partial cross-sectional view for explaining the engaging operation between the locking shaft and the lock mechanism in the lock mechanism shown in FIG. FIG. 6 is a partial cross-sectional view for explaining the engaging operation between the locking shaft and the lock mechanism in the lock mechanism shown in FIG. FIG. 7 is a partial cross-sectional view for explaining the engagement operation between the locking shaft and the lock mechanism in the lock mechanism shown in FIG. FIG. 8 is a partial cross-sectional view for explaining the engaging operation between the locking shaft and the lock mechanism in the lock mechanism shown in FIG. FIG. 9 is a partial cross-sectional view for explaining the engagement operation between the locking shaft and the lock mechanism in the lock mechanism shown in FIG. FIG. 10 is a partial cross-sectional view for explaining the engagement operation between the locking shaft and the lock mechanism in the lock mechanism shown in FIG. FIG. 11 is a partial cross-sectional view for explaining the engaging operation between the locking shaft and the locking mechanism in the locking mechanism according to the second embodiment of the present invention. FIG. 12 is a partial cross-sectional view for explaining the engagement operation between the locking shaft and the lock mechanism in the lock mechanism shown in FIG. FIG. 13 is a partial cross-sectional view for explaining the engagement operation between the locking shaft and the lock mechanism in the lock mechanism shown in FIG. FIG. 14 is a partial cross-sectional view for explaining the engaging operation of the locking shaft and the locking mechanism in the locking mechanism according to another embodiment of the present invention. FIG. 15A is a partial cross-sectional view for explaining the engagement operation of the locking shaft and the lock mechanism in the lock mechanism according to the modification of the first embodiment of the present invention, and FIG. It is a perspective view which shows an example of a structure of a biasing means. FIG. 16 is a partial cross-sectional view for explaining the engaging operation of the locking shaft and the locking mechanism in the locking mechanism according to another modification of the first embodiment of the present invention. FIG. 17 is a partial cross-sectional view of a personal computer for explaining a coupling mechanism and a locking mechanism between a display unit and a main body unit in the background art.

Explanation of symbols

1 Notebook PC (electronic equipment)
2 Display (first unit)
2a Opening / closing direction 2b Rotating direction 3 Main body (second unit)
4 Operation unit 5 Rotating shaft 6 Biaxial hinge 7 Locking shaft 8 Locking mechanism 10 Notch 11a Opening shaft 11b of biaxial hinge 12 Rotating shaft 12 of biaxial hinge 12 Shaft center 17 of receiving shaft 17 Housing 18 Coil spring (first Energizing means)
19 Lock holder 22 First claw member 23 Second claw member 24 Lock pin 25 Compression coil spring (second urging means)
26 Receiving surface 27 Shaft groove (clamping recess)
28 Pressing piece 29 Guide surface 31 Through hole 32 Tapered rib (regulating member)
33 Linear rib (regulating member)

Claims (11)

A first unit having a display panel for displaying information such as images and characters, a second unit having an operation portion on the main surface, and a connection for connecting the first unit and the second unit so as to be openable and closable and rotatable. An electronic device having
At least one locking shaft provided at a predetermined distance from the rotation axis of the connecting portion at the lower side of the first unit;
A lock mechanism provided on a main surface of the second unit and in a position to engage with the locking shaft of the first unit, and detachably holding the locking shaft;
An electronic device comprising: The electronic apparatus according to claim 1, wherein an axis of an opening / closing shaft of the connecting portion is coincident with that of the locking shaft. The said connection part is a biaxial hinge by which the said rotating shaft is arrange | positioned perpendicularly | vertically with respect to the said main surface, and the said opening-and-closing axis | shaft is arrange | positioned in parallel with respect to the said main surface. Electronic equipment. The lock mechanism includes a holding portion that detachably holds the locking shaft, and first urging means that urges the holding portion upward, and the holding portion holds the locking of the first unit. The electronic device according to claim 1, wherein the electronic device protrudes from the main surface of the second unit so as to be movable up and down so as to come into contact with a shaft. The clamping portion has a structure in which a first claw member and a second claw member are supported by a lock pin, and the locking shaft is provided on the upper end facing surface of each of the first claw member and the second claw member. A holding recess is formed,
The electronic apparatus according to claim 4, wherein the clamping unit further includes second urging means that urges the first claw member and the second claw member in a direction in which the clamping recess is closed. The outer surface of each upper end portion of the first claw member and the second claw member is configured as a guide surface that guides the locking shaft that has been moved by the rotation of the first unit to the clamping recess. An electronic device comprising the display panel according to claim 3. A trough-shaped receiving surface on which the locking shaft falls is formed at the tops of the upper end portions of the first claw member and the second claw member, and the locking shaft that has fallen on the receiving surface serves as the first claw. 7. An electronic apparatus comprising a display panel according to claim 6, wherein the electronic device is inserted into the holding recess of the member and the second claw member. A regulating member extending upward is provided in a path in which the clamping part moves up and down, and when the clamping part moves downward and contacts the regulating member, the lower ends of the first claw member and the second claw member are inside. The electronic device according to any one of claims 5 to 7, wherein the holding recess is opened by being pushed. A first unit having a display unit for displaying information such as images and characters, a second unit having an operation unit on a main surface, and a connection for connecting the first unit and the second unit so as to be openable and closable and rotatable. A locking device for an electronic device having:
At least one locking shaft provided at a predetermined distance from the rotation axis of the connecting portion at the lower side of the first unit;
Clamping means provided on a main surface of the second unit at a position to engage with the locking shaft of the first unit, and detachably holding the locking shaft;
A device for locking an electronic device, comprising: A personal computer comprising the locking device according to claim 9. A portable communication device comprising the lock device according to claim 9.

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