KR100992750B1 - Opening/closing device of mobile phone - Google Patents

Abstract

The present invention relates to an open / close device of a portable terminal, comprising: a slide type portable terminal including a top folder portion sliding on one side of a bottom folder portion, the slide type portable terminal mounted on the bottom folder portion to generate a driving force and a first pinion on a rotating shaft thereof; A motor with a gear, a second pinion gear mounted to interlock with the first pinion gear, a third pinion gear interlocked with the second pinion gear and inserted into the top folder, and the third pinion gear Since the rack gear formed inside the top folder is provided to be engaged with the upper and lower parts, the opening and closing operation of the top folder is automatically driven by a motor so that the user's convenience can be increased.

Description

Switching device of portable terminal {OPENING / CLOSING DEVICE OF MOBILE PHONE}

1 is a perspective view showing a closed state of a conventional slide-type portable terminal,

2 is a perspective view showing an open state of the slide-type portable terminal of FIG.

3 is a front view showing an opening and closing device of a mobile terminal according to one embodiment of the present invention;

4 is a cross-sectional view showing a state in which the top folder is closed by operating the opening and closing device of the portable terminal;

5 is a cross-sectional view showing a state in which the top folder unit is opened by operating the opening and closing device of the portable terminal;

** Description of the symbols for the main parts of the drawings **

10: top folder portion 20: bottom folder portion

31: inlet groove 32: motor

33: first pinion gear 34: support

35: second pinion gear 36: third pinion gear

37: Lex Gear

The present invention relates to an opening and closing device of a portable terminal, and more particularly, to facilitate the user's convenience by sliding and opening and closing the top folder by the drive of the rack gear and pinion gear mounted inside the top folder.

As the function of the portable terminal advances, functions beyond the wireless communication such as a camera function and a multimedia playback function are added to the portable terminal beyond simple wireless communication means, and such multimedia functions are used to improve the display portion of the portable terminal and realize high speed communication. It is gradually expanding its range of applications, and it is already commercialized, making portable terminals the ultimate portable entertainment system.

Such portable terminals are generally classified into bar type, flip type, and folder type portable terminals, and according to IMT-2000 service, camera function, wireless Internet, etc., various types of information are displayed as images. There is a need for introducing a liquid crystal screen.

In the case of a bar type portable terminal or a flip type portable terminal, there is a problem in that the size of the entire portable terminal is increased in order to mount a large liquid crystal screen. Only less than half the size of a portable terminal could accommodate an LCD screen. Correspondingly, in recent years, a slide type portable terminal capable of mounting a large liquid crystal screen as a small sized portable terminal is provided by overlapping a liquid crystal screen displaying image information and a keypad for inputting information in the same space.                         

1 to 3 is a view showing the configuration of a conventional slide-type portable terminal, Figure 1 is a perspective view showing a closed state of a conventional slide-type portable terminal, Figure 2 is an open state of the slide-type portable terminal of FIG. It is a perspective view showing.

As shown in the drawing, the conventional slide-type portable terminal 1 includes a top folder 10 which can be moved by sliding up and down, including an LCD, which will be described later, and a keypad which is in charge of communication control and an input device. The bottom folder (bottom folder) is equipped with 20 is configured.

The top folder unit 10 includes a liquid crystal display (LCD) 11 which displays various image information, a receiver 12 formed of a speaker for receiving a voice during a call and delivering the voice to a user; It is composed of a top folder casing 13 formed to surround the LCD (11) and the receiving portion (12).

The bottom folder unit 20 includes a keypad 21 for inputting information by a user, a transmitter 22 formed as a microphone so that the user transmits voice, and an upper end of the bottom folder unit 20 for receiving a communication signal. An antenna 23, a main PCB (not shown) in charge of communication control, a battery 24 formed to be detachably attached to the bottom of the bottom folder to supply power to the main PCB, and formed to surround the main PCB A bottom folder casing 26 is provided.

Here, the opening and closing device of the conventional slide-type portable terminal 1 is configured such that the top folder part 20 is opened and closed by vertical movement with respect to the bottom folder part 10, and more specifically, the bottom folder part 20. In order to facilitate the opening and closing operation of the guide groove 18 and the guide groove 18 formed in parallel to each other in the longitudinal direction in the rear side both sides of the top folder portion 10, the guide groove 18 to be moved up and down It consists of a guide protrusion 25 formed on the front of the bottom folder casing (26). That is, the top folder part 10 moves up and down by engaging the guide protrusion 25 formed in the bottom folder part 20 along the guide groove 18 formed in the top folder part 10 with respect to the bottom folder part 20. By opening and closing the portable terminal.

In the opening and closing device of the slide-type portable terminal, the portable terminal is opened by the user pushing the top folder 10 upward by a thumb, and the user mainly moves the top folder 10 to the thumb. As a result, the portable terminal is closed by being pulled downward.

However, the conventional slide-type portable terminal 1 is configured to push up or pull down the top folder part 10 manually by a finger, so that the top folder part 10 is attached to the bottom folder part 20 with a finger. There is a problem that the user is required to apply a certain amount of force until stopping against.

An object of the present invention devised in view of the above point is to provide an opening and closing device of a portable terminal that allows the top folder to be automatically opened and closed in using a slide type portable terminal to increase user convenience.

Opening and closing device of a portable terminal for achieving the object of the present invention as described above in the slide-type portable terminal comprising a top folder that is slid to one side of the bottom folder portion, is mounted to the bottom folder to generate a driving force A motor having a first pinion gear mounted thereon, a second pinion gear mounted to interlock with the first pinion gear, a third pinion gear interlocked with the second pinion gear and inserted into the top folder; And a rack gear formed in the top folder part to be engaged with the third pinion gear.

In addition, the bottom folder portion is preferably provided with a support for supporting the first pinion gear, the second pinion gear and the third pinion gear to be rotatable.

In addition, the top folder portion is effective that the third pinion gear is inserted into the top folder portion is provided with an inlet groove formed to penetrate in a rectangular shape along the rack gear to be engaged with the rack gear.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, an opening and closing device of a portable terminal according to one embodiment of the present invention will be described in detail with reference to the accompanying drawings. The same parts as in the conventional structure will be described with the same reference numerals.

3 is a front view showing an opening and closing device of a portable terminal according to an embodiment of the present invention, Figure 4 is a cross-sectional view showing a state in which the top folder is closed by operating the opening and closing device of the portable terminal, Figure 5 is a opening and closing device of the portable terminal Is a cross-sectional view showing a state in which the top folder is opened, and as illustrated, a portable terminal equipped with an opening and closing device according to an embodiment of the present invention includes a top folder which can be moved by sliding up and down including a liquid crystal screen (Top folder). Unit 10 and a bottom folder unit 20 that is in charge of communication control and equipped with a keypad as an input device, and the top folder unit 10 displays various image information. : Liquid crystal display 11, a receiver 12 formed of a speaker for receiving a voice during a call and delivering the voice to a user, and a top folder cable formed to surround the LCD 11 and the receiver 12. It consists of washing (13).

The bottom folder unit 20 includes a keypad 21 for inputting information by a user, a transmitter 22 formed as a microphone so that the user transmits voice, and an upper end of the bottom folder unit 20 for receiving a communication signal. An antenna 23, a main PCB (not shown) in charge of communication control, a battery 24 formed to be detachably attached to the bottom of the bottom folder to supply power to the main PCB, and formed to surround the main PCB A bottom folder casing 26 is provided.

Guide grooves 18 and inlet grooves 31 and the guide grooves formed in parallel to each other in the longitudinal direction in the rear side of the top folder 10 in order to facilitate the opening and closing operation of the bottom folder portion 20, and the guide It is formed by a guide projection 25 formed on the front of the bottom folder casing 26 to be engaged with the groove 18 and the inlet groove 31 to move up and down.

The driving force is generated inside the bottom folder part 20, and a predetermined length into the top folder part 10 is provided through the inflow groove 31 and the motor 32 having the first pinion gear 33 mounted thereon. The support portion 34 is formed to protrude so as to flow in, and the support portion 34 is engaged with the second pinion gear 35 and the second pinion gear 35 interlocked with and engaged with the first pinion gear 33. The third pinion gear 36 is mounted, and the inside of the top folder part 10 is along the inflow groove 31 so as to be engaged with the extension gear part 36a formed to extend on one side of the second pinion gear 36. The rack gear 37 is mounted in the longitudinal direction.                     

The portable terminal configured as described above is opened as shown in FIG. 5 while the top folder unit 10 is closed as shown in FIG. 4 while being used to make a call with another person, search for information, or input text. When the motor is to be opened, the motor 32 is rotated by supplying power to the motor 32, and the rotation of the first pinion gear 33 mounted on the rotation shaft of the motor 32 is transmitted to the second pinion gear 35. When the rotation of the second pinion gear 35 is transmitted to the third pinion gear 36, the rotating third pinion gear 36 moves the lag gear 37 engaged with the extension gear portion 36a. By being pushed upward, the top folder part 10 on which the lex gear 37 is mounted is opened upward.

On the contrary, in order to switch the open top folder part 10 from the open state to the closed state after the use of the portable terminal is completed, the power supplied to the motor 32 is converted to rotate in the opposite direction to the above, and the opposite direction to the above. Rotation of the first pinion gear 33 mounted on the rotation shaft of the motor 32 rotating in the direction of the second is transmitted to the second pinion gear 35, and rotation of the second pinion gear 35 is transmitted to the third pinion gear 36. ), The third pinion gear 36 that rotates in the opposite direction to the upper side pulls out the gear gear 37 engaged with the extension gear portion 36a in the upward direction, whereby the rack gear 37 is mounted. The top folder part 10 is closed in the downward direction.

As described above, the opening and closing apparatus of the portable terminal according to the present invention includes the first pinion gear 33, the second pinion gear 35, the third pinion gear 36 and the third pinion gear ( The guide protrusion 25 formed in the bottom folder portion 20 is moved up and down along the guide groove 18 formed in the top folder portion 10 by the relative movement of the rack gear reciprocating in the longitudinal direction in engagement with 36). The top folder 10 of the portable terminal is opened and closed by.

As described above, the opening and closing apparatus of the portable terminal according to the present invention engages the first pinion gear, the second pinion gear and the third pinion gear and the third pinion gear rotated by the motor, and the reciprocating gear in the longitudinal direction. The top folder of the portable terminal is opened and closed by engaging the guide protrusion formed in the bottom folder part along the guide groove formed in the top folder part by the relative movement and moving up and down, thereby providing the convenience of the user and improving the reliability of the product. have.

Claims (3)

In the slide-type portable terminal provided with a top folder that slides on one side of the bottom folder, A motor mounted to the bottom folder to generate a driving force; A first pinion gear mounted to a rotation shaft of the motor; A second pinion gear mounted to be interlocked with the first pinion gear; A third pinion gear interlocked with the second pinion gear and inserted into the top folder; It includes a gear gear interlocked with the third pinion gear, and formed inside the top folder portion, A guide protrusion protrudes from the front of the bottom folder portion. An inlet groove is formed at a rear surface of the top folder part in parallel with the rack gear and is recessed toward the front surface of the top folder part. The second pinion gear or the third pinion gear is rotated in the inflow groove, The guide protrusion opening and closing device of the portable terminal, characterized in that inserted into the inlet groove to guide the movement of the top folder. The opening and closing apparatus of a portable terminal according to claim 1, wherein the bottom folder part includes a support part rotatably supporting the second pinion gear and the third pinion gear. delete

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