KR100858607B1 - Docking station of hinge structure - Google Patents

Abstract

The present invention relates to a docking station hinge structure of a portable hybrid computer. The present invention relates to a rotational eccentric force acting on a cradle hinge portion through cradle rotation and a rotational eccentric force acting on a stand hinge portion through arm rotation. The cradle hinge portion and the stand hinge portion are symmetrically fixed to each other so as to be offset, and the cradle hinge portion and the stand hinge portion respectively act upon rotation of the cradle portion and the arm portion among the components of the docking station. As the rotational eccentric force is offset by the cradle hinge and the stand hinge, which are fixed in a mutually symmetrical structure as described above, there is an excellent effect of achieving a rotational balance of the ducking station.

Portable Hybrid Computer, Portable Computer, Docking Station, Cradle, Arm, Stand, Hinge Structure, Rotational Eccentricity, Rotational Balance

Description

Docking station of hinge structure

1 is a perspective view of a docking station to which a conventional portable computer is coupled.

Figure 2 is an exploded perspective view of the support means of the components of the conventional ducking station.

3 is a cross-sectional view showing a state where a conventional portable computer is connected to a docking station.

Figure 4 is an exploded perspective view of the docking station to which the hinge structure of the docking station of the present invention is applied.

5 is an enlarged perspective view of the cradle hinge / cylindrical hinge portion and the stand hinge / cylindrical hinge portion which are components of the docking station hinge structure.

6 is an exploded perspective view of a portable computer which is a hybrid computer mounted to a docking station to which the present invention is applied, and an operating state diagram of the portable computer.

7 is an exploded perspective view of the cradle portion of the components of the docking station.

8 is an exploded perspective view of the rotation guide member of the components of the cradle;

9 is an exploded perspective view of the stand portion of the components of the docking station.

10 is an exploded perspective view of the arm portion of the components of the docking station.

Figure 11 is a cradle portion and the arm portion is rotated through the symmetrical hinge structure of the docking station so that the cradle portion is in close contact with the top and bottom surface of the stand portion.                 

12 is a state in which rotation eccentric force is applied to the cradle hinge portion and the stand hinge portion according to the cradle portion and the arm portion rotation.

Explanation of symbols on the main parts of the drawings

100. Web Pad 200. Stylus Fan

300. Keyboard unit 400. Docking station

410. Cradle 420. Portable computer holder

440. Rear cover 450. Swivel guide member

451. Rotating guide top plate 452. Rotating guide top plate

453. Incision groove 454. Columnar protrusion

455. Hanging projections 456. Strike groove

457. Cradle Hinge 458. Cylindrical Hinge

460. Portable Computer Separator 500. Stand

510.Stand case 520.Center of gravity plate

525. Stand hinge 530. Cylindrical hinge

535. Sliding switch 540. Expansion device separator

600. Arm 700. Portable Computer

The present invention relates to a docking station of a portable hybrid computer, and more particularly, a docking station, that is, an arm, which allows data input from a desk or a table through a portable hybrid computer (hereinafter, referred to as a portable computer). A docking station comprising a first rotating step of rotating the cradle portion in which the portable computer is mounted in the front and rear directions of the arm portion, and a second rotating step of rotating the arm portion in the front and rear directions of the stand portion with respect to the stand portion. Among the components of the fixed cradle portion and the arm by the rotation of the cradle hinge and the stand hinge portion by the rotation of the eccentric force is fixed to each other so that the mutual symmetrical structure, the mutual balance during the rotational action of the docking station Hinge structure of the docking station It relates.

In general, in order to put a portable computer on a desk or a table and conveniently input data, a docking station for mounting the portable computer may be provided. Such a docking station may include a portable computer manufactured by each manufacturer. In order to provide a user with a separate docking station according to its shape, special purpose of use, and driving conditions, the docking station structure manufactured by each manufacturer is composed of different structures. As an example of the docking station manufactured by the present invention, a structure of a functional expansion device of an electronic device manufactured by Toshiba, Japan (JP-A-5-189086, hereinafter referred to as a docking station) will be described.

As shown in Fig. 1, the docking station has a mounting portion 22 to which an electronic device (hereinafter referred to as a portable computer) 1 is mounted, and at the same time, expands the function of the portable computer 1. A main body 16 having means 17 and a computer connector 12 mounted on the main body 16 in a state of being connected to the expansion means 17 and detachably protruding from the mounting portion 22. Support means for supporting the formed main body connector 26 and the main body connector 26 to move in the left and right and up and down direction, and at the same time to move in the disengaging direction (front and rear direction) of the computer connector 12. Consists of.

As shown in FIG. 2, the supporting means pushes the connector holder 28 to which the main body connector 26 is fixed, and the connector holder 28 to a standby position along the disengaging direction of the computer connector 12. And a support member for supporting the movable position between the loading positions, and pressing means for pressing the connector holder 28 fixed to the main body 16 toward the standby position.

As shown in FIG. 2, the support member is fixed to the support bracket 32 on which the connector holder 28 is fixedly supported by a screw, and to the support bracket 32 around the pressing means. And a support frame 40 to support the support bracket 32 so that the support bracket 32 to which the connector holder 28 is fixed by the pressing means can move in the distal direction, and the support bracket. It consists of the guide sleeve 52 which is inserted in the guide hole 38 which penetrated the 1st vertical part 32b of the 32, and is fixed to the said support frame 40 by a screw.

As shown in Figure 2, the pressing means is composed of a leaf spring 46 formed in a predetermined form. In addition, a plurality of earth units 70 are fixed at predetermined positions of the main body 16 mounting part 22 to prevent component damage of the portable computer 1 mounted on the main body mounting part 22 in the event of overcurrent.

In the main body 16, an ejector mechanism (not shown) for separating the portable computer 1 mounted on the main body mounting portion 22 is provided, and the ejector mechanism is shown in FIG. It is connected to the press lever 58 provided at the lower left and right ends of the main body connector 26, and when the operation knob 60 of the ejector mechanism is operated in the X direction, the press lever by the mechanical linkage of the ejector mechanism. While the 58 is operated, the portable computer 1 mounted on the main body mounting portion 22 is configured to be separated from the main body 16.

In this case, as shown in FIG. 3, when an external force acts while the portable computer 1 is coupled to the main body 16 which is a conventional ducking station, the tapered cylindrical portion of the guide sleeve 52 and the support bracket ( The main body connector 26 coupled with the computer connector 12 is moved up and down or left and right by a predetermined gap formed between the guide holes 38 of the 32, and the external force is canceled to offset the computer connector 12 and the main body connector 26. ) Damage is prevented.

However, in the case of the conventional docking station, only the function of allowing the portable computer 1 to recognize the expansion device (device) of the docking station through the portable computer 1 and through the main body connector 26 is provided. On the basis of the direction in which the portable computer 1 is coupled to the main body 16, the portable computer 1 mounted on the main body 16 is rotated in the front-rear direction of the main body 16 according to a user's purpose of use. It is of a single part shape structure that cannot be performed, as well as a rotational eccentric force applied to the hinge or the rotating member when the main body 16 is rotated while the portable computer 1 is mounted on the main body 16. Since there is no hinge structure or the like configured to offset the pressure, the conventional docking station can be rotated according to a user's working position or a specific place while the portable computer 1 is mounted on the main body 16. The development of a docking station using a hinge structure in which the rotating structure is used, and the rotating eccentric force applied to the hinge and the rotating member by the rotating structure is canceled is required.

The present invention has been made in order to solve the above problems, the first rotation step of rotating the cradle portion in which the portable computer is mounted relative to the arm portion in the front and rear direction of the arm portion, and the arm portion before and after the stand portion relative to the stand portion The cradle is capable of offsetting each rotational eccentric force acting on the cradle hinge portion and the stand hinge portion due to the rotation of the cradle portion and the arm portion among the components of the docking station consisting of the rotating structure of the second rotating step rotating in the direction The hinge part and the stand hinge part are fixed to each other by diagonal or inverted line symmetrical structures, and thus the purpose is to achieve mutual balance when the ducking station rotates.

The object of the present invention, the cradle hinge portion and the stand so that the eccentric rotation force acting on the cradle hinge portion through the cradle portion and the rotation eccentric force acting on the stand hinge portion through the arm portion rotation The hinge parts can be solved by the docking station hinge structure of the present invention, which is fixed to be symmetrical to each other, which will be described in detail with reference to the accompanying drawings.

Figure 4 is an exploded perspective view of the docking station to which the hinge structure of the docking station of the present invention is applied, Figure 5 is an enlarged perspective view of the cradle hinge / cylindrical hinge and the stand hinge / cylindrical hinge of the components of the docking station hinge structure It is shown.

In the hinge structure of the docking station 400 of the present invention, the cradle portion 410 on which the portable computer 700 is mounted through the cradle hinge portion 457 among the components of the docking station 400 is placed around the arm portion 600. The cradle according to the user's purpose by the first rotation step of rotating in the direction and the second rotation step of rotating the arm portion 600 in the front and rear direction of the stand portion 500 through the stand hinge portion 525. In the hinge structure of the docking station configured to use the portable computer 700 mounted on the cradle portion 410 by rotating the portion 410 and the arm portion 600, respectively;

When the cradle portion 410 rotates at the upper end of the arm portion 600 through the cradle hinge portion 457, the cradle portion 410 and the cradle hinge portion 457 fixed to the upper end of the arm portion 600. Rotational eccentric force applied, and when the arm portion 600 is rotated at the top of the stand portion 500 through the stand hinge portion 525, the arm portion 600 is fixed to the bottom and the stand portion 500 The cradle hinge 457 and the stand hinge portion 525 are symmetrical to each other so that the rotational eccentric force applied to the stand hinge portion 525 can be mutually canceled. 410 and the arm portion 600 is fixed to the stand portion 500 of the lower side is configured to achieve mutual balance during the rotation action of the docking station 400.

Hereinafter, the hinge structure of the docking station of the present invention will be described in detail.

In the docking station hinge structure of the present invention, the cradle portion 410 on which the portable computer 700 is mounted based on the arm portion 600 rotates in the front-rear direction of the arm portion 600, and the stand. The cradle portion 410 of the components of the docking station 400 made of a rotating structure of the second rotating step in which the arm portion 600 rotates in the front and rear directions of the stand portion 500 with respect to the portion 500. And the symmetrical structure so as to offset each rotational eccentric force applied to the cradle hinge portion 457 and the stand hinge portion 525 by the rotation of the arm portion 600, In order to achieve mutual balance during rotation, the configuration of the portable computer 700 mounted on the docking station 400 of the present invention will be briefly described as follows.

6 is an exploded perspective view of a portable computer which is a hybrid computer mounted to a docking station to which the present invention is applied and shows an operating state of the portable computer.

The portable computer 700 includes a web pad 100 having a plurality of panels and a main system, as shown in FIG. The key pad 320 has a rotary member 330 coupled to a rear end portion thereof, and overlaps the web pad 100 by the rotary member 330 and rotates the overlapped web pad 100 by a predetermined angle. It is comprised by the keyboard part 300 which has.

In the case of the portable computer 700 configured as described above, in the state where the keyboard unit 300 is coupled and overlapped, data and the like may be input to the portable computer 700 using the stylus fan 200 as an input device. When the web pad 100 is rotated at a predetermined angle with the keyboard part 300 superimposed and coupled to the web pad 100 as shown, the input device of the web pad 100 is connected to the keyboard in the stylus fan 200. While switching to the unit 300, it is possible to put a large amount of data, such as put on a desk or table like a conventional notebook.

In addition, in the case of the portable computer 700, the web pad 100 and the keyboard unit 300 are overlapped and coupled, so that the portable computer 700 can be easily taken as in the conventional web pad form. Again, there is a feature that can easily input data through the stylus fan 200 or the keyboard unit 300.

In addition, the portable computer 700 configured as described above is mounted on the docking station 400 consisting of a cradle portion 410, a stand portion 500, and an arm portion 600 so as to be used in a desktop form. The configuration of the docking station 400 will be described briefly as follows.

Figure 7 shows an exploded perspective view of the cradle portion of the components of the docking station, Figure 8 shows an exploded perspective view of the rotation guide member of the components of the cradle portion.

As shown in FIG. 7, the cradle 410 includes a portable computer holder 420 on which the portable computer 700 is placed;

A rear cover 440 fixed to a rear surface of the portable computer holder 420;

It is inserted into and fixed in the through holes 422 and 442 formed at predetermined positions of the portable computer holder 420 and the rear cover 440, respectively, and is mounted on the portable computer holder 420 according to a user's purpose of use. A rotation guide member 450 serving as a guide to rotate (circumferentially) the portable computer 700 at a predetermined angle;

The portable computer 700 mounted on the portable computer holder 420 is detached from each other by being fixed to the inside of the holder rear cover 440 and by a multi-stage cam movement made by an external force applied to the separating handle 461. It consists of a portable computer disconnecting device (460).

Reference numerals 424, 443 are guide rails, 430, 434, 437 are ground members, drive connectors, orientation switches, and 444, 468, 472 are striking members, fastening members, It shows a detachment member.

In addition, 475 shows a coupling protrusion to which the fastening member 468 is fixed.

As shown in FIGS. 7 and 8, the rotation guide member 450 is inserted into the through hole 422 of the portable computer holder 420 to rotate to serve as a rotation guide of the portable computer holder 420. A guide top plate 451;                     

A rotation guide lower plate 452 inserted into the through hole 442 of the cradle rear cover 440 and serving as a rotation guide of the cradle rear cover 440;

An incision groove 453 formed at a predetermined length on a circumferential surface of the connector PCB 435 which protrudes between the rotation guide upper plate 451 and the rotation guide lower plate 452 so as to flow freely;

It is formed on the circumferential surfaces of the upper and lower plates 451 and 452, respectively, so that the screen mode of the portable computer 700 is switched to a portrait or landscape landscape mode when the cradle 410 is rotated by a predetermined angle. A circumferential protrusion 454 for switching an orientation switch 437 fixed to the rear of the portable computer holder 420;

The circumference may be caught by the angle limiting projection 436 on the rear surface of the mounting plate 421 formed at a predetermined angle to prevent the portable computer 700 mounted on the portable computer holder 420 from being rotated by a predetermined angle or more. A protrusion 455 integrally formed at one end of the protrusion 454;

When the cradle unit 410 rotates by a predetermined angle, the portable computer 700 may be rotated by a predetermined angle through the striking action of the striking member 444 mounted on one side of the cradle rear cover 440. An impact groove 456 spaced apart at a predetermined angle on the circumferential surface of the rotation guide member 450;

The cradle portion 410 on which the portable computer 700 is mounted is fixed to the other side of the arm mounting groove 459 formed at a predetermined length in the center of the rotation guide lower plate 452, and the front and rear directions of the arm portion 600 are fixed. A cradle hinge part 457 fixed to the other end of the arm part 600 and a screw so as to be rotated;

While supporting the connector PCB 435 lines leaked out through the arm mounting groove 459, the cradle hinge portion 457 is opposed to the cradle hinge portion 457 to prevent the rotational force of the cradle portion 410 from being biased to one side. The arm mounting groove 459 is composed of a cylindrical hinge portion 458 fixed to one side.

Figure 9 shows an exploded perspective view of the stand portion of the components of the docking station.

As shown in FIG. 9, the stand part 500 includes a stand case 510 including an upper cover 511 and a lower case 512 coupled to each other by screws;

A center of gravity plate 520 inserted into and fixed to the entire surface of the lower case 512 to prevent the docking station 400 from falling over by the weight of the cradle 410 on which the portable computer 700 is mounted; ;

An arm seating portion 521 formed in a curved shape so that the lower portion of the arm portion 600 is seated at a predetermined position on the top of the center of gravity plate 520;

A center of gravity plate on one side of the arm seating portion 521 so that the lower portion of the arm portion 600 is seated and fixed to the arm seating portion 521 so that the arm portion 600 can be rotated in the front and rear direction of the stand portion 500. (520) a stand hinge portion 525 fixed to a predetermined position and one end of the arm portion 600 by screws;

Is inserted into and fixed to the other side of the arm seating portion 521 opposite to the stand hinge portion 525 in order to prevent the rotational force of the arm portion 600 rotated in the front and rear direction of the stand portion 500 to one side. A cylindrical hinge portion 530;

The cylindrical hinge 530 is mounted at a predetermined position in front of the cylindrical hinge part 530, and is switched to the switch contact groove 630 of the arm part 600 so that the stylus fan 200 can be input when the arm part 600 is in close contact with the arm part 600. A sliding switch 535 for converting a program into a driven screen;

The stand 500 is mounted on the upper side of the center of gravity plate 520 and the expansion device (CD-ROM, FDD Drive) 570 inserted into the stand 500 through a multi-stage cam action by lever 541 rotational force. Expansion device separation device (540) for separating in);

It is installed and fixed at a predetermined position on the top of the center of gravity plate 520, and the stand part 500 is composed of a stand part main board 560 coupled with a communication means and an input / output means so that separate communication and input / output can be performed.

Reference numerals 523 and 565 denote arm mounting cover and covers of communication means and input / output means, and 511a, 513, 514, and 514a indicate bending prevention plates, expansion device insertion holes, and guide rails. (515) 516, 522, and 522a represent a tension ground member, a female screw fixing protrusion, a guide rail insertion hole, and an insertion protrusion insertion hole.

In addition, 524 represents a coupling groove into which the cylindrical hinge portion 530 is inserted.

Figure 10 shows an exploded perspective view of the arm portion of the docking station components.                     

As shown in FIG. 10, the arm unit 600 includes a front arm plate 610 and a rear arm plate 620 having a predetermined curvature, and the front and rear arm plates 610 and 620. The upper end is fixed to the cradle hinge portion 457 fixed to the other side of the arm mounting groove 459 of the rotation guide member 450, the lower end is fixed to one side of the arm seating portion 521 of the stand portion 500 The cradle portion 410 fixed to the stand hinge portion 525 and on which the portable computer 700 is mounted by free rotation of the upper and lower portions of the arm portions 600 fixed to the hinge portions 457 and 525. ) Is to be supported by the stand portion (500).

In this case, the upper and lower ends of the arm part 600 are formed in a semi-circular shape so that rotation can be desired in a fixed state to each of the hinge parts 457 and 525, and the arm part 600 The other side of the lower peripheral surface of the switch contact groove to switch the sliding switch 535 mounted on the other side of the arm seating portion 521 of the stand portion 500, that is, the front of the cylindrical hinge portion 530 630 is formed.

In addition, a coupling groove 640 is formed at the other lower end inner circumferential surface of the arm part 600 so that the binding protrusion 531 formed on the circumferential surface of the cylindrical hinge portion 530 may be inserted and fixed.

First rotation of the cradle portion 410 on which the portable computer 700 is mounted based on the arm portion 600 among the docking station 400 components configured as described above is rotated in the front-rear direction of the arm portion 600. As shown in FIG. 5, the cradle hinge portion 457 serving as a step serves to form a ??-shape fixed to the other side of the arm mounting groove 459 of the lower guide 452 of the rotary guide member 450. The first hinge member 457a and the upper portion of the arm portion 600 are fixed with screws, and the first hinge member 457a may be rotated at the upper portion of the arm portion 600. And a cradle portion 410 fixed to the upper portion of the arm portion 600 by the cradle hinge portion 457, the second hinge member 457b having a planar shape to be inserted into and fixed to the front and rear direction of the arm portion 600. It is a structure formed to be rotated.

In addition, in order to prevent the rotational force of the cradle 410 from being biased to one side when the cradle 410 is rotated by the first rotating step, as shown in FIGS. 4 to 5, the cradle hinge The cylindrical hinge portion 458 is fixed to a predetermined position that is opposite to the branch portion 457, that is, at one side of the arm mounting groove 459.

On the other hand, the arm portion 600 supporting the cradle portion 410 with respect to the stand portion 500 of the components of the ducking station 400 is rotated in the front and rear direction of the stand portion 500 As shown in FIG. 5, the stand hinge part 525 serving as the second rotating step has a cylindrical shape and a first hinge member having a predetermined length in a planar shape so as to be fixed to a lower end of the arm part 600 by a screw. 526 and a second hinge member 527 fixed to a center of gravity center plate 520 at one side of the arm seating portion 521 by a screw and inserted into and fixed to the first hinge member 526. The arm part 600 seated and coupled to the part 521 is formed to be rotated in the front and rear directions with respect to the stand part 500.

In addition, in the cylindrical portions of the first hinge member 526 and the second hinge member 527, an arm portion 600 seated and coupled to the arm seating portion 521 is provided in the front-rear direction of the stand portion 500. The locking step 528 is formed to prevent the rotation of the predetermined angle or more.

In addition, in order to prevent the rotational force of the arm unit 600 from being biased to one side when the arm unit 600 is rotated by the second rotating step, as shown in FIGS. 4 to 5, the stand hinge The cylindrical hinge portion 458 is inserted into and fixed to a predetermined position opposite the branch portion 525, that is, the other side of the arm seating portion 521.

At this time, a binding protrusion 531 is formed on the circumferential surface of the cylindrical hinge portion 530 so as to be inserted into and fixed to the coupling groove 640 formed at the other inner circumferential surface of the lower end of the arm portion 600.

11 is a view illustrating a state in which the cradle portion and the arm portion are rotated through the symmetrical hinge structure of the docking station so that the cradle portion is in close contact with the top and the bottom surface of the stand portion, and FIG. 12 shows the cradle hinge portion according to the cradle portion and the arm portion rotation. It shows a state in which the rotation eccentric force is applied to the stand hinge.

In the hinge structure of the docking station 400 as described above, when the cradle portion 410 pulls the cradle portion 410 such that the bottom surface of the cradle portion 410 is in close contact with the top of the stand portion 500, the portable computer based on the arm portion 600. The cradle portion 410 on which the 700 is mounted rotates in the front direction of the arm portion 600 while the first rotation step in which the angle between the cradle portion 410 and the arm portion 600 opens. 12 through the arm mounting groove (see FIG. 8) 459 of the rotation guide lower plate 452 and the cradle hinge portion 457 screwed to the other end of the upper portion of the arm portion 600, as shown in FIG. When the eccentric force is applied, and as shown in Figure 11, after pulling the cradle portion 410 further to close the bottom of the cradle portion 410 to the bottom surface, based on the stand portion 500 The arm part 600 also rotates in the front direction of the stand part 500. Through the second rotation step of narrowing the angle between the arm portion 600 and the stand portion 500 is fixed to the lower side of the arm portion 600 and the arm seating portion (see Fig. 9) (521) side When the rotational eccentric force is applied to the stand hinge portion 525 as shown in FIG. 12, the hinge structure of the ducking station 400 is in an oblique state, that is, the arm portion 600 as shown in FIG. 4. Since the upper and other symmetrical structures are fixed to the lower end of the arm portion 600, respectively, the rotational eccentric force applied to the cradle hinge portion 457 and the stand hinge portion 525 is As the mutual offset is offset, the overall rotational balance of the docking station 400 is well matched to achieve a smooth rotation.

As described above, the portable computer 700 applied to the present invention is referred to as a web pad 100, a PDA, a tablet PC, and the like, and in particular, the web pad 100 and / or the web pad 100 according to the embodiment of the present invention. Although the portable computer 700 coupled to the keypad 300 is described, the embodiment of the present invention is not limited to the web pad 100, and may be used by applying the above-described PDA or tablet PC. Make sure you know it.

 The hinge structure of the docking station of the present invention, the cradle hinge portion and the eccentric rotation force acting on the cradle hinge portion through the cradle portion, and the rotation eccentric force acting on the stand hinge portion through the arm portion rotation to offset each other and The stand hinge parts are symmetrically fixed to each other, and when the cradle part and the arm part rotate among the components of the docking station, rotational eccentric forces acting on the cradle hinge part and the stand hinge part are mutually symmetrical as described above. While offset by the cradle hinge and the stand hinge fixed in the structure, there is an excellent effect to achieve a rotational balance of the ducking station accordingly.

Claims (6)

A first rotating step of rotating the cradle portion in which the portable computer is mounted through the cradle hinge portion among the components of the docking station in the front and rear direction of the arm portion, and a second rotating step of rotating the arm portion in the front and rear direction of the stand portion via the stand hinge portion. A hinge portion of a docking station configured to use a portable computer mounted on the cradle portion by rotating the cradle portion and the arm portion according to a user's purpose of use; Rotational eccentric force acting on the cradle hinge fixed to the cradle portion and the upper end of the cradle portion and the cradle portion at the upper end of the arm portion through the cradle hinge portion, and the upper end of the stand portion through the stand hinge portion. When the arm rotates, the cradle hinge and the stand hinge portion are symmetrical to each other so that the rotational eccentric force acting on the stand hinge portion fixed to the lower end of the arm portion and the stand portion may be mutually symmetrical to each other. The hinge portion of the ducking station, characterized in that fixed to the portion. According to claim 1, wherein the cradle hinge portion and the stand hinge portion, the rotational eccentric force acting on the cradle hinge portion and the rotation eccentric force acting on the stand hinge portion, the other side of the upper end of the arm portion and The hinge portion of the ducking station, characterized in that fixed to the structure symmetrical to each other on the lower end of the arm. 2. The cylindrical hinge portion of claim 1, wherein the cylindrical hinge portion is fixed to a predetermined position opposite to the cradle hinge portion in order to prevent the cradle portion from being biased to one side when the cradle portion is rotated by the first rotating step. Hinge of the ducking station. The cylindrical hinge part is fixed to a predetermined position opposite to the stand hinge part, in order to prevent the rotational force of the arm part from being biased to one side when the arm part is rotated by the second rotating step. Hinge of the ducking station. 5. The hinge portion of the ducking station according to claim 4, wherein a binding protrusion is formed on a circumferential surface of the cylindrical hinge portion so as to be inserted into and fixed to a coupling groove formed on the other inner circumferential surface of the lower end of the arm portion. A cradle portion on which a portable computer is mounted; A stand portion for seating the cradle on a floor and allowing separate communication and input and output to the portable computer; An arm portion connecting the stand portion and the cradle portion so that the stand portion supports the cradle portion; And According to the user's purpose of use, the cradle portion in which the portable computer is mounted through the cradle hinge portion is rotated in the front-back direction of the arm portion, and the second rotation stage in which the arm portion is rotated in the front-back direction of the stand portion through the stand hinge portion. A docking station hinge portion configured to use the portable computer mounted on the cradle portion by rotating the cradle portion and the arm portion, respectively, when the cradle portion rotates at the upper end of the arm portion through the cradle hinge portion. Rotational eccentric force acting on the cradle hinge portion fixed to the upper end of the arm, and when the arm portion rotates at the upper end of the stand portion through the stand hinge, acts on the stand hinge portion fixed to the lower end of the arm and the stand The cradle hinge portion and the stent so that rotational eccentric forces can cancel each other out. The cradle portion by a hinge structure that is part symmetrical to each other and dakking station hinge part, characterized in that fixed to the extended portion; Docking station comprising a.

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