KR20040034192A - Control apparatus for slant angle of portable computer - Google Patents

Abstract

PURPOSE: A device for adjusting inclination of a portable computer is provided to make a user conveniently use a structure such as a joining structure of various parts, an installing structure of a stylus pen, a supporting structure of the portable computer, and an attaching/detaching structure of an HDD(Hard Disk Drive), and realize efficient assembly on a manufacturing process. CONSTITUTION: An inclination adjusting lever(171) is rotated forward/rearward at a predetermined angle by having a rotational shaft inserting groove(171a) supporting front/rear rotation at a head part and an elastic hanging projection(171b) for giving an operation feeling according to the rotational angle, and installing to a rear cover(210). A rotational shaft(172) guides the rotation of the inclination angle adjusting lever. A leaf spring(173) rotates the rotation of the inclination angle adjusting lever forward/rearward at the predetermined angle. A stopper(174) limits the rotation of the inclination adjusting lever over the predetermined angle.

Description

Control device for slant angle of portable computer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable computer system, and more particularly, to a portable computer system having improved user convenience and manufacturing efficiency.

More specifically, the user can conveniently use mechanical structures such as a coupling structure of various components mounted on a portable computer system, a mounting structure of a stylus used as an input means, a supporting structure of a portable computer system, a removable structure of a hard disk drive, and the like. The present invention relates to a portable computer system improved to enable efficient assembly in a manufacturing process.

In line with the times, most systems in use today are small, light and portable. These include note book personal computers, personal digital assistants, and smart phones.

Notebook computers or portable digital terminals, which are typically portable computers, have two types depending on input methods. One type is equipped with a keyboard, which is a basic input device, and the operation is performed around the keyboard, and the pen has a keyboard pad type configured to serve as a pointing device. It has a form of a touch pad that can hold a computer with a hand and operate the computer with only a pen or hand with the other hand.

Here, a portable computer, referred to as a notebook computer, is lighter and smaller in volume than a general desktop computer, and can be easily carried, thereby providing a lot of conveniences that cannot be obtained in a general desktop computer. In addition, the use of the computer is hardly restricted by the place, and the use range of the computer is further expanded.

1 is an exploded perspective view of a conventional wallet PC.

Referring to FIG. 1, the hardware of a conventional wallet PC 10 includes a front housing 20, a rear housing 30, a frame 40, a screen 60, a board 70, and the like. The frame 40, the screen 60, the board 70, and the like are installed in an internal space formed by the combination of the front housing 20 and the rear housing 30. The screen 60 and the board 70 are coupled to the frame 40 and installed in the inner space. The screen 60 and the board 70 have a structure that is not directly coupled to the front housing 20 or the rear housing 30. This structure prevents the impact from being transmitted directly to the screen 60 and the board 70 when an impact is applied to the housings 20 and 30 from the outside. This structure can prevent the screen 60 and the board 70 from being damaged by an external impact. The frame 40 is formed to have a structure seated in the front housing 20 and the rear housing 30. The frame 40 is coupled to the front housing 20 by screws 76. The screw 76 is coupled to the boss 24, which is formed in the front housing 20, through a fixing rib formed in the frame 40.

In this conventional wallet PC, the frame 40 is configured to be coupled to the front housing 20 by only one screw 76. Of course, the frame 40 may be configured to be coupled to the rear housing 30, and the frame 40 may be coupled to the front housing 20 or the rear housing 30 in various other ways.

The frame 40 has a first face 42 and a second face 44, which are faces opposite each other. The first face 42 and the second face 44 may be any face on the frame 40. The screen 60 is coupled to the first side 42, and the board 70 is coupled to the second side 44. The display screen of the screen 60 is exposed to the outside through the opening 22 formed in the front housing 20. The configuration for coupling the screen 60 and the board 70 to the frame 40 can be used in various ways.

Conventionally, a plurality of supporting ribs 46 have been used. The supporting ribs 46 are formed from the side of the frame 40. That is, the supporting ribs 46 are formed from the sides of the first face 42 and the second face 44. This configuration means that a plurality of devices can be combined in a stacked form on the frame 40. This method can be easily realized by those skilled in the art. The board 70 may maintain a constant height from the second surface 44. This can be effectively used when electronic circuits are installed on both sides of the board 70. This configuration can also be obtained in various ways.

In the related art, ribs 48 are formed on the second surface 44 to support the board 70.

The battery case 52 is integrally formed in the frame 40. The battery case 52 is equipped with a battery (not shown). The battery is attached / removed to / from the battery case 52 via a door 32 installed in the rear housing 30.

Conventionally, the speaker mounting portion 28 is formed so that the speaker can be installed on the inner surface of the front housing 20 where the battery case 52 is located. This structure makes it possible to efficiently use the internal space of the wallet PC 10, and to facilitate the assembly or disassembly of the speaker. The speaker may be coupled or disassembled through the door 32 without disassembling the wallet PC 10. Battery terminals 74 may be installed on the board 70. The battery terminals 74 allow the board 70 to be directly coupled to the battery case 52 when the board 70 is coupled to the frame 40.

The boards 70 may have switches 72 having various functions. For example, since the wallet PC 10 is implemented to use the system through a simple operation, various function buttons are provided. These switches 72 are actuated by buttons 26 installed in the front housing 20. The configuration and operation of the buttons 26 and switches 27 are omitted. Since the wallet PC 10 is made small, there is a difficulty in configuring an electronic circuit in a small space. The positions of the buttons 26 for activating the switches 72 are configured to correspond to the switches 72, respectively. The switches 72 should each be in the range of motion of the corresponding buttons 26. If the switches 72 are not in the range of motion of the buttons 26, the switches 72 will not operate. In the related art, mediums 50 were used when the switches 72 were not in the range of motion of the buttons 26. The mediums 50 are formed integrally with the frame 40. These mediums 50 are located between the switches 72 and the buttons 26, respectively. When a user externally presses any one of the buttons 26 to operate a predetermined function, a medium corresponding to the button is operated. The switch corresponding to this medium is then activated. By the mediums 50, even if the switches 72 are installed at a position out of the movement range of the buttons 26, the operations of the switches 72 are normally performed.

The wallet PC 10 may use a method of inputting data on the screen 60 with a stylus 80. The stylus 80 may also be called a pen or pen stylus. Various types of techniques may be used for the stylus input method. For example, there is a technique of using a conductive stylus in a stylus input method. The conductive stylus is connected to the wallet PC by a cord. The code has an internal conductor that electrically connects the stylus and the wallet PC to enable a write function on the screen. The wallet PC 10 of the present embodiment uses screen write technology that requires no code. Screens used in such techniques are also called touch screens. In addition, the conventional wallet PC 10 allows the stylus 80 to be mounted inside the wallet PC 10. The stylus 80 is mounted to the supporter 54 formed in the frame 40. The supporter 54 may be configured in various forms. The supporter 54 is formed to have an inner surface having the same shape as the outer circumferential surface of the stylus 80. When the stylus 80 is mounted to the supporter 54, the stylus 80 is fixed by a hook 56 so as not to be detached from the supporter 54 arbitrarily. The hook 56 is coupled to a groove 82 formed on the outer circumferential surface of the stylus 80 so that the stylus 80 does not escape from the supporter 54. The hook 56 is formed in a direction in which the stylus 80 is attached / detached to / from the supporter 54. This hook 56 is formed in the form of a free end. By the structure of this free end, the hook 56 can elastically move on the inner surface of the supporter 54. In addition, the hook 56 is formed to protrude in a direction in contact with the outer circumferential surface of the stylus 80.

A first notch 29 is formed in the front housing 20, and a second notch 34 is formed in the rear housing 30. The first notch 29 and the second notch 34 form an opening when the front housing 20 and the rear housing 30 are coupled to each other. Through the opening by the first notch 29 and the second notch 34, the stylus 80 is attached / detached to / from the supporter 54.

The screen 60 and the board 70 of the wallet PC 10 are coupled to the frame 40 and located inside the wallet PC 10. The screen 60 and the board 70 do not have a coupling relationship with the front housing 20 and the rear housing 30 of the wallet PC 10. The frame 40 is coupled to the front housing 20 by one screw 76, and the screen 60 and board 70 are supported by the frame 40. An insulator (not shown) having elastic properties may be used at a portion where the screen 60 contacts the front housing 20. In addition, the battery case 52 may be integrally formed on the frame 40. The battery terminals 74 (see FIG. 2) installed in the battery case 52 may be installed on the board 70. The battery terminals 74 are directly coupled when the board 70 is mounted to the frame 40.

However, in the related art, a screen, a board, and the like are sequentially coupled to each other, starting from one top or bottom case, and the remaining cases are fastened. This process has a problem in that all parts must be joined at once in the manufacturing process, and all of them must be disassembled even when only the board or screen part is rested.

In addition, there is a supporting rib in case of a collision on the lower case side, but it is weak in the impact applied directly to the screen. That is, since the screen is opened through the opening part of the wallet PC, foreign matter may be introduced from the outside, and a problem of damage may occur due to a direct impact.

The present invention has been made in order to solve the above problems, the coupling structure of the various components mounted on the portable computer system, the mounting structure of the stylus pen used as an input means, the supporting structure of the portable computer system, the hard disk drive removable structure, etc. The purpose of the present invention is to provide a portable computer system that can be conveniently used by the user and can be efficiently assembled in a manufacturing process.

In detail, the button assembly can be fastened by the rear cover and the hook and the hook engaging groove method, so that a separate fastening means such as a screw is not required to increase the efficiency of manufacturing and repair work.

In detail, the power switch is to turn on the power by pressing the power switch with a predetermined force and to restore the original position by the tension action.

In detail, the hard disk drive detachment device combines a sliding method of the hard disk and at the same time enables direct connector connection.

Specifically, the stylus holder is intended to receive / draw the stylus in a push-push manner.

The inclination-angle adjusting device is provided so as to transmit a predetermined feeling of operation to the inclination control lever so that it can be folded and folded before and after a predetermined inclination angle.

In addition, an object of the present invention is to provide a portable computer system that can facilitate the maintenance and repair of the product by separating and coupling the devices mounted on the front cover and the rear cover.

1 is an exploded perspective view of a portable computer having a frame capable of mounting a plurality of conventional devices.

2 is an exploded perspective view showing a portable computer system according to an embodiment of the present invention.

3 is a perspective view showing a state in which a plurality of devices are coupled to the rear cover according to an embodiment of the present invention.

4 and 5 are exploded perspective views of the button assembly according to an embodiment of the present invention.

6 is a view showing a state before and after fastening the button assembly according to an embodiment of the present invention.

7A and 7B are exploded perspective views of a power switch according to an exemplary embodiment of the present invention.

8 is a combined state diagram of a power switch according to an embodiment of the present invention.

9 is an exploded perspective view of the stylus holder according to the present invention.

10 is an operational state diagram of a stylus holder according to an embodiment of the present invention.

11 is a storage / withdrawal state of the stylus according to an embodiment of the present invention.

12 and 13 are exploded perspective view showing a hard disk drive detachment apparatus according to an embodiment of the present invention.

14 is an exploded perspective view of an insulating and separating structure of a hard disk drive according to an exemplary embodiment of the present invention.

15 to 17 are views illustrating a coupling process of an insulating and separating structure of a hard disk drive according to an exemplary embodiment of the present invention.

18 is a view showing a sliding coupling operation state on the bracket of the hard disk drive according to an embodiment of the present invention.

19 is a combined state diagram of a hard disk drive according to an embodiment of the present invention.

20 is an operational state diagram of the inclination angle adjustment device according to an embodiment of the present invention.

Figure 21 is an exploded perspective view of the inclination angle adjustment device according to an embodiment of the present invention.

22 is a view showing a coupling process of the tilt angle adjusting device according to an embodiment of the present invention.

Figure 23 is an operating state diagram of the inclination angle adjustment device according to an embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

100... Portable Computer 110 ... Front Cover

120 transparent panel 121 double-sided tape

122 ... LCD panel 126 ... Digitizer panel

170 ... Tilt angle adjuster 200 ... Stylus

210.Rear cover 220 ... Stylus holder

230 ... power switch 240 ... button assembly

250 ... HDD Detach 254 ... HDD

265 Battery remover

Tilt angle adjusting device of a portable computer according to the present invention for achieving the above object,

A case forming an external appearance of the device, the case comprising a frame-shaped front cover which forms one external appearance of the device and which is open on the inside thereof, and a rear cover which is coupled to the front cover to form the other external appearance of the device; A main board mounted inside the case and having various circuit components installed therein; Display means for outputting various kinds of information; Information storage means for storing various kinds of information; A digitizer for inputting information; In the portable computer system comprising a button assembly for controlling the operation of the device by the user's operation, the inclination angle for adjusting the inclination angle with respect to the ground in accordance with the use state of the portable computer on both sides of the upper bottom of the rear cover It further comprises an adjustment device.

Preferably, the inclination angle adjusting device, the rotating shaft insertion groove for supporting the front / rear rotation in the head portion and the elastic piece engaging protrusion for giving a sense of operation according to the degree of rotation is coupled to the rear cover and the inclination angle to rotate before / after a predetermined angle A degree adjusting lever; A rotating shaft for guiding the rotation of the tilt angle adjusting lever; A leaf spring for rotating the tilt angle adjusting lever forward and backward at a predetermined angle; It characterized in that it comprises a stopper for limiting the rotation of the tilt angle adjustment lever more than a predetermined angle.

Preferably, the leaf spring is mounted on the leaf spring seating portion formed in the rear cover body portion and the left / right side is coupled to the inner jaw of the leaf spring seating portion, the two-stage elastic piece is made of "V" shape It is characterized in that it is coupled to the elastic piece engaging projection of the inclination angle adjustment lever.

Preferably, the inclination angle adjusting device is characterized in that it is coupled to the left / right of the upper side of the long side of the rear cover.

Preferably, the inclination angle adjusting device is characterized in that it is coupled to the left / right of the upper side of the short side of the rear cover.

Hereinafter, with reference to the accompanying drawings as follows.

Figure 2 is an exploded perspective view of a portable computer system according to an embodiment of the present invention, Figure 3 is a coupling state of the rear cover according to the present invention, Figures 4 to 8 is a view showing a coupling structure of the button assembly and the power switch, 9 to 11 are views illustrating a stylus holder, FIGS. 12 to 19 are views illustrating a detachable device of a hard disk drive, and FIGS. 20 to 23 are views illustrating a tilt angle adjusting device.

Referring to Figures 2 to 4, the portable computer system according to the present invention is coupled to the front cover 110, the display means is mounted on the inside and the rear cover 201 is mounted on the information processing components such as the main board, etc. Thus, the appearance of the device is achieved.

The front cover 110 includes a transparent panel 120 attached to the upper surface with a double-sided tape, an LCD panel 122 and a digitizer panel 126 stacked and coupled inside the front cover, and an edge of the LCD panel 122. A sealing member 125, which is closely attached between the transparent panels 120, is mounted, and a main board 180 on one side of the rear cover 210, a button assembly 240 on one side, and a power switch 230. And the stylus holder 220, the HDD detachment device 250 for storing the hard disk drive on the other side inside, the battery detachment device 265 is mounted.

Referring to the accompanying drawings, a portable computer system according to the present invention as described above is as follows.

Referring to Figure 2 described in detail with respect to the components mounted on the front cover 110 as follows. For convenience of description, a portrait direction having a longer vertical direction than a horizontal direction will be described as a default mode.

The front cover 110 is made of plastic, and the rear cover 210 is made of magnesium to increase heat dissipation of heat generated therein, and to make the device lightweight.

First, the front cover 110 has an open structure inside and a transparent panel insertion groove 111a is formed at the front outer circumferential surface to attach the transparent panel 120 to the front, and the LCD panel 122 and Digitizer panel 126 is coupled.

The rear cover 210 includes a system main body (HDD, a main board, etc.) for driving the system, a battery detaching device 265, an HDD detaching device 250, a stylus holder 220 for storing the stylus 200, and various kinds thereof. Buttons 242 and 243 and a power switch 230 for function control are combined.

In this case, the front transparent panel 120 and the LCD panel 122 mounted on the front cover 110 may prevent the foreign substances such as dust from flowing into the transparent panel 120 and the LCD in a cleaning room. The bonding process of the panel 122 is performed.

Referring to the component coupling structure of the front cover as follows.

As shown in FIG. 2, the transparent panel 120 is made of a transparent material having a predetermined strength and is attached to the transparent panel insertion groove 111a on the front surface of the front cover 110. In an embodiment, the attachment member corresponds to a double-sided tape. The double-sided tape 121 is formed in a band shape having a different width and length than the horizontal, and is first attached to the outer edge of the bottom surface of the transparent panel 120, and the transparent panel 120 having the double-sided tape 121 is attached to the front cover. It is attached and fixed to the transparent panel insertion groove 111a formed on the front outer circumferential surface of the 110. As a result, the transparent panel 120 is fixed to the front cover 110 without any screw fastening.

The fixing frame 124 is fastened to the left and right sides of the outer peripheral frame 123 for supporting the LCD panel with the screws 101. That is, after aligning the screw holes formed in the left and right corners of the outer peripheral frame 123 and the screw holes 102 of the fixing frame 124, the screws 101 are used from the front of the LCD panel 122 to the rear direction. Tighten it.

A band-shaped sealing member (gasket) 125 is attached between the LCD panel 122 and the outer periphery frame 123, and the sealing member 125 attached to the LCD panel 122 is adhered to the front cover 110. Is attached to the double-sided tape 121 attached to the edge of the transparent panel 120. Then, the LCD panel 122 is fastened by fastening the LCD panel 122 to the boss (not shown) of the front cover 110 with the screw 101 through the threaded holes 102 processed above and below the fixing frame 124. 110).

In addition, the double-sided tape 121 integrally fixes the transparent panel and the transparent panel insertion groove 111a to the outer region, and the transparent panel 120 and the sealing member 125 are attached to the inner region.

As described above, the LCD panel 122 is blocked by the sealing member 125 having the predetermined thickness, the double-sided tape 121, and the transparent panel 120, so that foreign matters from the outside may be blocked.

In addition, the LCD panel 122 and the digitizer panel are fastened by fastening the digitizer panel 126 with the screws 101 through the screw holes 102 formed in the frames 123 and 124 to stack the digitizer panel 126 on the rear surface of the LCD panel. 126 are stacked and joined. In this LCD fastening structure, the LCD panel 122 is primarily supported from the inside to the frame, and then fastened to the internal boss so that the screw fastening structure is not exposed to the front surface of the front cover 110.

In addition, since the transparent panel 120 is coupled to the front surface of the front cover 110, the external shock is not dispersed and transmitted to the LCD panel 122, as well as the double-sided tape 121 and the sealing member 125 are external. It has a certain buffering effect against the impact to minimize the impact transmitted to the panel. In addition, by sealing the display portion of the LCD panel 122 on the front and side portions of the LCD panel 122, it is possible to block the inflow of foreign substances to improve the reliability of the product.

In addition, a support member (not shown) for supporting the heterogeneous display panels 122 and 126 coupled to the front cover 110 in an “L” shape with a screw 101 on the front cover 110. Tighten. Thus, the panel fastening work is completed.

In addition, the inverter circuit board for driving the LCD panel 122 and the inverter cable are connected, and the LCD inverter circuit board and the digitizer controller board are positioned and coupled to the rear surface of the digitizer panel 126. In addition, the LCD panel 122 and the digitizer panel 126 are each provided with an inverter inside the upper part to supply appropriate voltages, and by connecting an auxiliary battery electrically to the inverter, when the main battery is replaced or the battery capacity is insufficient, information about the system is provided. The system can be powered from seconds to minutes for minimal work, such as preventing losses.

The front cover 110, which has completed the coupling process as described above, is coupled to the rear cover 210. The rear cover 210 includes a main board 180, an HDD and a battery electrically connected to the main board. Combined. The HDD is coupled to the HDD detachment device 250 and the battery detachment device 265, respectively.

In addition, the stylus holder 220 for mounting / withdrawing the stylus 200 is mounted, and combines a button assembly 240 including buttons and switches for controlling various functions to one side.

At the bottom of the motherboard 180 mounted on the rear cover 210, a disk drive socket for interfacing with a CD-ROM drive, a floppy disk drive, and the like is electrically connected. When the disk drive socket is not used, foreign matters are introduced. To prevent this, it includes a socket-protection lever that opens when you engage the drive connector and closes when you disconnect the drive connector.

The main board 180 is electrically connected to the PCMCIA card storage unit 183 and the USB port at the upper right side thereof, and a communication port 184 including a serial communication port and a LAN port at the center thereof. An Infrared Data Association (IrDA) for infrared communication is connected. And a port cover for protecting the communication port.

A coupling structure of a hard disk drive, a stylus, and a button assembly mounted on the rear cover 210 coupled to the front cover 110 will be described below.

Meanwhile, the button assembly 240 and the stylus holder 220 are coupled to the upper right side of the rear cover 210, the HDD detachment unit is coupled to the lower side of the rear cover 210, and the inclination angle control unit is coupled to the upper end of the rear cover 210. Is as follows.

First, the coupling structure of the button assembly will be described with reference to FIGS. 4 to 7.

The button assembly 240 is coupled to the upper right side of the rear cover 210, and the stylus holder 220 is coupled to receive the stylus 200 into the button assembly 240.

The button assembly 240 is coupled to a plurality of function buttons in the upper right corner. This function button is composed of a push operation means including a power switch, a quick button, a tap button, an Esc button, a personal information management button 242, and a rotation operation means composed of a jog switch 243 and the like. The jog switch moves in the up / down direction with respect to the center to perform level adjustment and menu movement with up / down functions corresponding to the enter and up / down directions for OSD adjustment. In addition, the personal information management button, which is one of the function buttons, acts as a pop-up menu when the power is turned off or executes another program, thereby providing information on the pop-up menu on the screen. The pop-up menu information includes user's personal information or schedule information.

As shown in FIG. 3, the power switch 230 is coupled to the upper right fourth curved assembly 144 of the rear cover 210, and the stylus 200 accommodated in the stylus holder 220 passes through the upper surface thereof. The pen through hole 220a which can be formed is formed.

Referring to FIGS. 4 and 5, the button assembly 240 includes a button cover 241 having a plurality of function buttons at the upper right side, and a button substrate 244 having a plurality of contact switches. The cover 241 is provided with a function button such as a power button, a quick button, a tap button, an Esc button, a button 242 including a personal information management button, a jog dial 243, and the like. By a predetermined elastic force.

In addition, the button cover 241 is integrally formed with various function buttons 242, the jog switch 243 is coupled separately. The button cover 241 is provided with a substrate fixing hook 245 to be coupled to the button substrate 244, a first hook locking groove 246 and a second hook locking jaw 247 protruding inwardly at a lower end thereof, and on one side thereof. A mounting protrusion groove 248 is formed in the groove. A hook groove 245a is formed in the button substrate 244 opposite thereto, and the first and second hooks 246a and 247a formed zigzag in the rear cover 210 to which the button assembly 240 is coupled. And the left / right is formed with a mounting projection 248a is coupled to the mounting groove 248.

Then, when the button cover 241 and the button substrate 244 are coupled to each other, when the button substrate 244 is brought into close contact with the button cover 241, the substrate fixing hook 245 formed on the button cover 241 is connected to the button substrate ( 242 is hooked to the hook groove 245a, and each function button of the button cover 241 corresponds to the contact switch of the button substrate 242, and the jog switch 243 is coupled to correspond to the jog contact switch. .

After the button assembly 240 is positioned on the rear cover 210 as shown in FIG. 5, the button cover 241 is inclined (θ = 30 degrees) as shown in FIG. 6 to cover the rear cover 210. Position it at the joint of. At this time, the first hook engaging groove 246 protruding inwardly in the lower center of the button cover 241 is inserted into the first hook 246a protruding inwardly in the center of the rear cover 210, and then the button cover 241 is inserted into the first hook hooking groove 246. When it is raised, the second hook hooking jaw 247 of the button cover 241 is caught by the second hook 247a protruding outward from the left / right side of the first hook 246a. That is, the first hook locking groove 246 and the second hook locking jaw 247 are projected inwardly spaced apart in the same line at the lower end of the button cover, and corresponding to the first hook 246a and the second hook ( Since 247a is zigzag, forces for supporting each other are generated at the time of engagement.

At this time, the mounting protrusion 248a protruding upward from the rear cover 210 is inserted into the mounting groove 248 formed at one side of the button cover 241, and the screw is fastened to the screw through hole to engage the hook method. To secure the button assembly together. The hooking method of the present embodiment can increase process efficiency by minimizing a separate fastening means such as a screw. As another embodiment, a method of adopting only a hook type fastening without omitting the seating protrusion 248a may be possible. .

In addition, the power switch 230 includes a tension protrusion groove 233 protruding inward, a hook 234 formed at both sides of the groove 233, and a tension bar extending from the tension protrusion groove 233 to the left to be inclined. 235).

As shown in FIG. 7A, when the power switch 230 is fitted through the power switch guide groove 231 of the curved assembly 144, the hooks 234 formed on both sides of the power switch 230 may be formed. The tension protrusion groove 233 that is fitted into the power switch guide groove 231 and protrudes inwardly into the power switch 230 is inserted between the tension protrusion 236 of the button substrate 244 to complete the coupling of the power switch 230. . Here, as shown in FIG. 4, the tension protrusion 236 interlocks with the spring 237 interpolated on one side.

When the power switch 230 is turned on / off in such a state, when the power switch 230 is slightly pushed and pushed to the right, the power switch 230 moves to the right along the power switch guide groove 231 and at the same time the tension protrusion groove 233. The tension protrusion 236 inserted into the spring moves while pressing the spring, and at the same time, the tension bar 235 formed inside the power switch is in surface contact with the button substrate 244 to have a predetermined elastic restoring force. As a result, the power switch is contacted to enable the function control.

Here, the light emitting diode is turned on / off to inform the operation state of the power switch 230, the emitted state is emitted to the outside through the transparent power switch.

In addition, since the tension protrusion 236 moves in the opposite direction (left) again by the restoring force of the spring 237 being pressed, the tension protrusion groove 233 is moved to its original position, and the tension protrusion groove 233 is provided. The elastic restoring force transmitted to the tension bar 235 formed at one side of the side helps to move the power switch 230 back to the original position. On the other hand, the jog switch 243 is coupled to the other side of the button substrate 244, and moves up and down with respect to the center, so as to level up / down functions corresponding to the enter and up / down directions for OSD adjustment. Perform adjustments and menu navigation. Referring to the operation structure, a step 231a is formed in the middle portion of the power switch guide groove 231 to move to the right only while the power switch 230 is pressed. At this time, the tension bar 235 is provided by the tension bar 235 to return to the original state while the power switch 230 is pressed. In addition, when the external force is not applied to the power switch 230, the tension protrusion groove 233 and the tension protrusion When the power switch 230 is separated and the power switch 230 is pressed, the tension protrusion groove 233 and the tension protrusion 236 are combined to push the power switch 230 to the right. ) Can also be configured to work. That is, the safety switch structure can be implemented so that the power switch 230 can operate only when the power switch 230 is pressed.

Meanwhile, the holder 220 for accommodating the stylus 200 will be described with reference to FIGS. 9 to 11.

In order to accommodate the stylus 200, the stylus holder 220, various function buttons and jog switches are coupled to the upper right side of the rear cover 210 as shown in FIG. 2. The upper right curved assembly 144 of the rear cover 210 is provided with a power switch on the right side, and pen penetrating holes 220a through which the stylus 200 accommodated in the stylus holder 220 can pass. Is formed.

As shown in FIG. 9, the stylus holder 220 includes a pen barrel 221 through which the stylus penetrates, a pen tip press portion 223 inserted into an end of the pen barrel 221, and a pen tip press portion 223 and a rear end. It is composed of a push-push button 222 that is fixed to the cover and includes a push button portion 224 for transmitting the indentation / restoring force by the elastic force to the pen tip indentation 223.

When the stylus is stored in the stylus holder, when the stylus 200 penetrates and is inserted into the pen through hole 220a formed in the curved assembly 144 and the pen barrel 221 extending therefrom, the inserted stylus ( The pen tip of 200 is pressed into the pen tip press portion 223 of the push-push button 222 and is received therein.

Here, the pen tip press portion 223 has a pen tip receiving groove 223a therein, and is installed as an inner circumferential surface of the pen tip receiving groove 223a when the pen tip is received in the pen tip receiving groove 223a. The indentation bar 223b presses and supports the pen tip of the stylus 200 with a predetermined elastic force.

And, as shown in (a) (b) of FIG. 10, the pen tip indentation unit 223 operates in a push-push method at every moment when external force flows into the push button unit 224, and the stylus The storage and withdrawal to the stylus holder 220.

The spring 224b is press-fitted and restored so that the pen tip push-in part moves forward / backward between the pen tip push-in part 223 and the push button part 224, and the pen tip push-in part 223 and the push button part 224. In the left / right side of the) is formed a groove 224a and the projection 223c for the guide to guide the front / rear movement.

When the stylus 200 is accommodated, the pen tip press portion 223 coupled with the pen tip is pushed completely by the guide grooves and the protrusions 223c and 224a in the rearward direction to be coupled to the push button portion 224. And the spring 224b therein is press-fitted. At this time, the stop projection 223d rotated on one side of the pen tip press portion 223 is caught by the stop groove 224e formed at the end thereof along the inner guide jaw 224c of the push button portion 224 of FIG. As shown in b), the pen tip press portion 223 is stopped.

On the contrary, when the stylus 200 is to be pulled out, when the stylus 200 inserted into the stylus holder 220 is pushed once more, the pen tip press portion 223 containing the pen tip is pushed back in the rearward direction. At this time, the stop protrusion 223d caught by the stop groove 224e is separated, and accordingly, the pen tip pressing portion 223 moves forward from the push button portion 224 to allow the user to move the stylus 200 by hand. By pushing forward enough to grab, the stylus is drawn out as shown in FIG.

Here, the stop projection 223d of the pen tip press portion 223 is T-shaped, and the vertical (1) hemispherical rotation shaft 223e is inclined into a 45 degree hemispherical shape to be fitted inside the spring 224b to be coupled between the springs. And a horizontal (-) stop bar 223f has a "V" shaped stop groove after the protrusion protruding upwardly thereof is guided along the inner guide jaw 224c of the push button portion 224. 224e, and, on the contrary, when an external force is applied to the pen tip indenting portion 223, the protrusion is released from the stop groove 224e and moves back along the outer surface of the guide jaw 224c.

When the stylus 200 is mounted as shown in FIG. 10A, when the stylus 200 is penetrated by the pen barrel 221, the pen tip portion of the stylus 200 is press-fitted into the pen tip of the push-push button 222. The part 223 is press-fitted and fixed. At this time, the pen tip pressing part 223 is pushed inward by an external force and then inserted into the push button part 224. At this time, the rotating shaft 223e of the stopper is rotated and placed in a state of 45 degrees, and the stop button 223d protruding from the tip of the pen tip pressing part 223 is guided to the guide jaw, and then the push button part 224. Is locked to the stop groove 224e. Double a, the tip of the pen tip 223 and the push button 224 between the spring 224b therein is press-fitted to transmit the elastic force between each other.

In addition, when the stylus 200 is pulled out as shown in FIG. 10B, when the stylus 200 is pushed once in all directions, the pen tip press portion 223 containing the pen tip is push button portion 224. While pushing in the direction, the stop projection 223d is separated from the stop groove 224e. At this time, the pen tip pressing portion 223 is pushed forward by the elastic force acting between the pen tip pressing portion 223 and the push button portion 224 to move the stylus 200 to the front end of the stylus holder 220. By pushing to the first storage position, the stylus 200 is to the outside to the extent that the user can grab.

The push button portion and the pen tip press-fit portion may be integrally formed.

In another embodiment of the push-push operation, the stylus 200 may be linked with the on / off of the power switch by the push-push operation when the stylus 200 is received and withdrawn from the stylus holder 220. That is, after the power switch is mounted inside the push button unit 224, the power switch may be turned on / off by interlocking with the pen tip pressing part 223 at the time of taking out and storing the stylus.

In an embodiment, a press-fit bar for press-fitting the stylus may be installed at a circumferential surface of a specific position of the pen case and may press the body portion of the press-fit stylus. At this time, the press-fit spring is a structure that allows the front / rear flow, and may form a band on the body portion of the opposing stylus.

In an embodiment, the press-fit bar may be made of rubber or wire.

11 to 20 are diagrams illustrating a detachable structure of a hard disk drive and an insulation and detachment structure of an HDD in the structure.

As illustrated in FIG. 11, the hard disk drive 245 is coupled to a lower side of the rear cover 210 in a detachable structure. An HDD detachment device for accommodating the HDD 254 is as follows.

The HDD detachment apparatus is largely comprised of an HDD detachment apparatus 250, an HDD 254 accommodated therein, and an HDD cover 255.

The HDD detachment device 250 has an HDD accommodating groove 253 on which one side is opened for coupling with the HDD connector 181, and an L-shaped detachable protrusion guide on the inner side upper and lower portions for attaching and detaching the HDD 254. Grooves 251 are formed. In addition, a hook 252 protruding downward from the left and right centers of the outer surface, and a seating groove 257 and a screw through hole 259 are formed above and below the outer surface, respectively.

The HDD detachment device 250 is coupled to a portion of the rear cover 210 that is open to the lower side of the rear cover 210, and the hook 252 of the HDD detachment device 250 is engaged to the left / right center of the HDD bracket coupling hole 250a. Hook hooking groove 252a and the inwardly projecting mounting protrusions (not shown) are formed to protrude.

Then, when the HDD detachment device 250 is coupled inward from the inside of the HDD bracket coupling hole 250a, the HDD detachment device 250 is inserted into the HDD bracket coupling hole 250a in the form of interference fit, and at the same time, The hook 252 of the HDD detachment device 250 is hooked to the hook locking groove 252a, and the external seating grooves 257 are fitted to the seating protrusions, respectively.

In addition, the HDD detachment apparatus 250 is fastened and fastened with a screw 258 through the screw through hole 259 and the screw hole 259a from the inside to completely fix the rear cover 210.

In the coupling operation of the HDD 254, in order to couple the HDD 254 to the internal HDD accommodating groove 253 of the HDD detacher 250, a detachable protrusion protruding from the upper and lower sides of the HDD 254 may be provided. 254a is inserted into the L-shaped detachable protrusion guide groove 251, and when pushed forward, the detachable protrusion 254a slides along the L-shaped detachable protrusion guide groove 251, thereby providing a HDD 254. Sliding in all directions is in close contact. At this time, the male connector 254b of the HDD 254 is connected to the HDD female connector 181 of the motherboard 180. That is, when the HDD detachment protrusion 254a is inserted along the vertical portion of the L-shaped detachable protrusion guide groove 251 and then pushes forward along the horizontal portion, the male connector provided in the HDD 254 is provided. 254b is connected to the female connector 181 for the HDD connected to the motherboard. This has the effect that the HDD can be accommodated in the HDD storage device without additional screws. In addition, the connector 181 and the HDD male connector 254b of the motherboard can be directly connected to each other without a separate cable.

The HDD accommodating groove 253 is almost equal to the length of the HDD 254 plus the L-shaped detachable protrusion guide groove 251. When the HDD is completely coupled, the HDD accommodating groove 253 may be formed in the L-shaped detachable protrusion groove 251. Space is left behind the HDD accommodating groove 253 by the length.

Finally, the cover fastening protrusion 256 formed on the side of the HDD cover 255 is covered with the cover fastening groove 256a by covering the cover with the HDD cover 255 on the outside of the rear cover 210 as shown in FIG. 12. By inserting and fastening with screws 258 on the opposite side, the storing operation of HDD 254 is completed.

At this time, the separation prevention protrusion 255a protruding from the rear rear end of the HDD cover 255 spans the rear end surface of the HDD 254 connected to the main board 180 so that the HDD is electrically disconnected and separated from the rear direction. And prevent separation.

A description will be given of the HDD insulation and isolation structure with reference to FIGS. 14 to 20.

As shown in FIG. 14, an insulation film 260 for insulation of the HDD 254, a “” “shaped film fixing plate 261 for fixing the insulation film 260, and separation for separation of the HDD 254 are provided. Handle 262.

The insulating film 260 has the same size as the top surface of the HDD and has a structure in which both fixing parts 260a can be folded. The film fixing plate 261 is bent inwardly at both sides to form a detachable protrusion through hole 261a corresponding to the detachable protrusion 254a of the HDD 254.

As shown in FIG. 15, the center portion of the insulating film 260 is in close contact with the inner surface of the film fixing plate 261, and the both fixing parts 260a are folded to the outside both sides of the film fixing plate 261 and attached by an adhesive or the like.

The separation handle 262 is attached to the insulating film 260 in close contact with the inner surface of the film fixing plate 261 as shown in FIG. 16, and a portion of the separation handle 262 is formed of the insulating film fixing plate ( 261).

At this time, the insulating film fixing plate 261 with the insulating film is in close contact with the upper surface and the left / right side of the HDD, and when the fastening protrusion 254a is fastened through the detachable protrusion through hole 261a as shown in FIG. 261 is fixed to the HDD 254. Here, the removal protrusion 254a is a screw as an example.

That is, the detachable protrusion 254a is separated from the HDD 254, and the film fixing plate 261 is positioned above the HDD 254, and then the detached plurality of detachable protrusions are provided through the plurality of detachable protrusion through holes 261a. When the 254a is fastened to the original position, the film fixing plate 261 is closely attached to the HDD 254 and integrally coupled to the HDD 254. At this time, an insulating film 260 is placed between the circuit element of the HDD 254 and the film fixing plate 261, and the separation handle 262 is exposed to the outside of the HDD.

The HDD 254 is positioned on the HDD detachment apparatus 250 as shown in FIG. 18, and then pushes in the direction of the force F1 to detach or detach the protrusion 254a of the HDD 254. Sliding in the front direction (F1) along the guide groove 251 is coupled. At this time, as the HDD 254 is coupled to the HDD detachment apparatus 250, the connectors are connected to each other.

And, as shown in Figure 19 by covering the HDD detachment device 250, the HDD 254 is fastened with a cover 255, the departure prevention jaw (255a) is to prevent the departure of the HDD (254).

Here, the HDD removal handle 262 is located inside the HDD cover 255, so that when removing the HDD cover 255, the separation handle 262 is exposed to the outside as shown in FIG. When pulling out 262, the connectors are separated from each other, and the HDD 254 is separated from the HDD detachment apparatus 250 by moving away from the rearward direction F2. This makes it easy to remove the HDD.

The insulating film 260 may shock or electrically protect the HDD 254, and the film fixing plate 261 may be made of stainless steel. In an embodiment, the detaching handle may be attached or coupled to a position that does not electrically affect the HDD.

Although the structure of the HDD detachment device has been described in which the HDD is vertically coupled to the detachment device, the HDD detachment device may be provided horizontally. That is, by forming a "a" shaped detachable protrusion guide groove on the left and right inlet of the HDD detachable device, and having a detachable protrusion at the rear end of the HDD, the HDD is slidingly coupled to the detachable device and finally detached to the detachable protrusion guide groove. The projection is inserted to complete the coupling, and by combining the HDD cover in the rearward or upward direction, the coupling can be completed.

On the other hand, when the portable computer is used as a long side or a short side is combined with the inclination control device to give a certain inclination to the bottom surface of the portable computer.

20 to 23 is a view showing the inclination angle adjustment device of a portable computer according to the present invention.

Figure 20 (a) is a state diagram using the tilt angle of the portable computer by the tilt angle adjusting device, (b) is a view showing a tilt angle adjusting device coupled to the bottom of the portable computer.

Such portable computers, that is, portable computers, are used in landscape or portrait mode depending on the usage mode. At this time, for convenience of the user to provide a tilt control device as shown in Figure 20 that can adjust the overall tilt angle with respect to the use direction of the portable computer.

In an embodiment, in order to adjust the inclination when the portable computer is used as the long side (or short side), the inclination angle adjusting device 170 is installed at both sides of the bottom of the rear cover 210. The tilt angle adjusting device 170 is for adjusting the tilt angle of the panel when the portable computer is used as a long side.

Referring to FIGS. 21 and 22, an inclination angle adjustment lever 171 rotates forward and backward by a predetermined angle with respect to the bottom surface of the rear cover 210, and a rotation shaft 172 for rotation of the inclination angle adjustment lever. And, the leaf spring 173 for transmitting the elastic force to be folded and adjusted at a predetermined inclination angle of the inclination angle adjustment lever 171, and the stopper 174 for stopping the inclination angle adjustment lever 171 at a predetermined inclination angle It is composed of

Here, the head portion of the inclination angle control lever 171, the rotary shaft insertion groove 171a to which the left / right rotation shaft 172 is coupled, the elastic piece engaging protrusion 171b for interlocking with the elastic piece according to the degree of rotation of the lever. Is formed.

The leaf spring 173 is the body portion is seated on the leaf spring seating portion 175 and the left / right locking projection 173c is coupled to the inner jaw of the leaf spring seating portion 175, the two-stage elasticity The piece 173a has a "V" shape and is coupled to the elastic piece engaging protrusion 171b of the inclination angle adjustment lever 171.

The stopper 174 is fixed to the stopper fixing projections 174a protruding outward at the left and right ends into the stopper fixing protrusion grooves 175b formed at the left and right sides of the leaf spring seating portion 175.

The leaf spring seating portion 175 is formed at the upper end of the lever coupling groove 170a, and the stopper support protrusion 175a protrudes upward in the center thereof, thereby supporting the support protrusion through hole 173b formed in the body of the leaf spring 173. It penetrates into the central part of the stopper 174, and prevents the stopper 174 from moving.

When the inclination adjustment device is coupled to the inclination adjustment device to the rear cover, as shown in Fig. 22 (a) (b), the body portion of the leaf spring 173 is the upper lever engaging groove 170a of the rear cover 210. The leaf spring seating portion 175 formed on one side of the seat spring seating portion 175, the locking jaw of the leaf spring 173 and the locking projection 173c of the leaf spring 173 is coupled to the leaf spring 173 is the leaf spring seating portion It is seated at 175 and fixed.

At this time, the stopper support protrusion 175a protruding upward in the center of the leaf spring seating portion 175 penetrates through the support protrusion through hole 173b formed in the center of the body of the leaf spring 173. Then, the stopper 174 is positioned on the leaf spring seating portion 175 and then fitted with an interference fit, and the left / right stopper fixing protrusion 174a is fitted into the stopper fixing protrusion groove 175b. At the same time, the stopper support protrusion 175a is fitted into the center support groove of the stopper 174. As a result, the leaf spring body is seated on the leaf spring seating portion 175 and the stopper is fitted thereon.

Then, after positioning the inclination adjustment lever 171 in the inward direction by pressing the lever adjustment groove 171c formed on the left and right of the head portion of the inclination adjustment lever 171 on the rotation shaft 172, the inclination adjustment lever 171 As shown in (c), the rotation shaft coupling groove 171a is coupled to the rotation shaft 171.

At this time, the elastic piece 173a extending to one side of the leaf spring 173 is coupled to the head upper elastic piece locking projection 171b of the inclination adjustment lever 171, and the inclination adjustment lever 171 is a lever coupling groove ( By seating on 170a), the tilt adjusting device is fully coupled to the rear cover 210.

Referring to FIG. 23, when the portable computer 100 is to be used at a predetermined inclination angle, when the inclination adjustment lever 171 provided at the lower portion of the rear cover 210 is pulled at an angle, the inclination adjustment lever 171 When the elastic piece engaging protrusion 171b tries to move in the opposite direction by transferring tension to the upper elastic piece engaging protrusion 171b in the opposite direction to be flipped by the elastic piece 173a of the leaf spring 173, The inclination adjustment lever 171 rotating about the rotation axis 172 moves by itself in the direction to be flipped and stops by contacting the stopper 174. Here, the stopper 174 is used as a rubber material for the buffer and stop of the inclination adjustment lever 171.

And in order to rotate to the state of FIGS. 23A and 23C centering on the state of FIG. 23B, the elastic piece engaging protrusion 171b and the elastic piece 173a are "V" in a shape corresponding to each other. Combined in the shape of a child, the tilt angle adjustment lever 171 by the rotation axis 172 when the predetermined angle moves by transmitting the opposite force to the rotation axis 172, the tilt angle adjustment lever 171 is folded and folded operation Makes it possible.

Then, as shown in (b) of FIG. 20, the portable computer can be used in a state of being positioned at a predetermined tilt angle by the tilt adjusting device.

On the contrary, as shown in (a) of FIG. 23, the inclination angle of the inclination adjustment device 170 with respect to the bottom surface is eliminated. At this time, in Figure 23 (b), when the inclination adjustment lever 171 is pulled back to the original position, the elastic piece of the leaf spring (173) to the head-side elastic piece engaging projection (171b) of the inclination adjustment lever 171 By receiving the force opposite to the direction to return to the original position by the (173a), the inclination adjustment lever 171 is inserted into the lever engaging groove 170a by the force pushing the elastic piece (173a).

As described above, in order to adjust the inclination angle of the portable computer, when the inclination angle adjustment lever 171 is flipped by a predetermined inclination angle, it moves by the desired inclination angle by the inner elastic piece 173a and the elastic piece locking protrusion 171b. It allows you to use it at a certain tilt angle. On the contrary, in order to eliminate the inclination angle of the inclination angle adjustment lever 171, when the inclination angle adjustment lever 171 is pulled out, the inclination angle adjustment lever by the inner elastic piece 173a and the elastic piece locking projection 171b. 171 is inserted into the lever engaging groove 170a of the rear cover 210, so that a portable computer can be used without an inclination angle.

Further, since the lever detachment grooves 171a are formed on both sides of the head of the inclination angle adjustment lever 171 to detach / detach the inclination angle adjustment lever 171, the inclination angle adjustment lever 171 is upright. When pulled out, the lever detachable groove 171a is removed from the rotation shaft 172. That is, since the lever detachment groove 171a of the inclination-angle adjustment lever 171 is forcibly inserted into the rotation shaft 172, it is possible to separate when pulling from the rotation shaft 172.

The portable computer as described above will be described with reference to the accompanying drawings.

In the portable computer 100, an LCD panel 122, a digitizer panel 126, and a main board 180 for system operation are combined into one pad. By combining the device with a double assembly, a button assembly for controlling various functions on the rear cover, a device for attaching and detaching an HDD, a battery detaching device, a stylus holder for taking out and storing the stylus, and an inclination angle adjustment for adjusting the tilt of the portable computer. It provides a single pad that functions as a portable computer.

In addition, by combining the removable keyboard portion to the portable computer 100, or through the communication port to enable the notebook computer as well.

Accordingly, the portable computer 100 can be used alone and can be used using the stylus 200. Alternatively, the keyboard can be selectively mounted on the portable computer 100 to use the keyboard, mouse, and stylus 200 when necessary. 100), when a user wants to edit a simple document and access the web, when the user inputs a character or inputs a specific menu to the portable computer 100 using the stylus 200, the corresponding function Can be performed. That is, when inputting a character to be input using the stylus 200 or selecting a specific menu, the digitizer controller controls the coordinates of the digitizer panel 126 corresponding to the RF signal generated by the stylus 200. After decrypting, it passes to the motherboard (180). Then, the main board 180 is controlled to perform an operation corresponding to the input information.

When a key signal is input using an input device such as a keyboard and a mouse, the key signal input through the USB port and the keyboard connector is transferred to the central processing unit through the USB bus. The central processor displays the LCD panel 122 in response to the key signal.

When only the portable computer 100 is used, when the display information is changed to the screen mode to be used, the screen mode is changed to the portrait mode or the landscape mode. That is, when the display information selects 1024 * 768 or 768 * 1024 as an example, the display state is changed to the corresponding screen mode.

As described above, the portable computer according to the present invention mounts an LCD panel, a digitizer panel, and a main system for operating the system on one pad. In providing a computer.

In addition, by mounting a display panel on the front cover and a motherboard, button assembly, HDD, battery, and stylus holder for system operation on the rear cover, the front cover and the rear cover can be structurally separated to facilitate maintenance bosses. It has an effect.

In addition, it is possible to fasten the hook assembly to the button assembly, there is an effect that can simplify the fastening operation.

In addition, by fastening the sliding method of the HDD, there is an effect that can be combined without the screw fastening work according to the combination of the HDD.

In addition, by providing the withdrawal / storage of the stylus from the stylus holder installed in the cover in a push-push method, it minimizes the loss due to the detachment of the stylus, there is an effect that can be brought clean because it is installed inside.

Claims (5)

A case forming an external appearance of the device, the case comprising a frame-shaped front cover which forms one external appearance of the device and which is open on the inside thereof, and a rear cover which is coupled to the front cover to form the other external appearance of the device; A main board mounted inside the case and having various circuit components installed therein; Display means for outputting various kinds of information; Information storage means for storing various kinds of information; A digitizer for inputting information; In the portable computer system comprising a; button assembly for controlling the operation of the device by a user's operation, And an inclination angle adjusting device for adjusting an inclination angle with respect to the ground in accordance with the use state of the portable computer on both sides of the upper bottom surface of the rear cover. The method of claim 1, The inclination angle adjustment device is coupled to the rear cover having a rotating shaft insertion groove for supporting the front / rear rotation at the head portion and the elastic piece engaging projection for giving a sense of operation in accordance with the degree of rotation, the inclination angle adjustment lever to rotate a certain angle before and after Wow; A rotating shaft for guiding the rotation of the tilt angle adjusting lever; A leaf spring for rotating the tilt angle adjusting lever forward and backward at a predetermined angle; And a stopper for limiting rotation of the tilt angle adjusting lever by a predetermined angle or more. The method of claim 2, The leaf spring has a body portion is seated on the leaf spring seating portion formed in the rear cover, the left / right side is coupled to the inner jaw of the leaf spring seating portion, the two-stage elastic piece is "V" shaped to adjust the inclination angle Tilt angle adjusting device of a portable computer, characterized in that coupled to the elastic piece engaging projection of the lever. The method of claim 3, And the inclination angle adjusting device is coupled to the left and right upper sides of the long sides of the rear cover. The method of claim 4, wherein The inclination angle adjustment device is a tilt angle adjustment device of a portable computer, characterized in that coupled to the left and right of the upper bottom side of the short side of the rear cover.