KR100595623B1 - Mobile phone - Google Patents

Abstract

The present invention relates to a portable terminal, wherein a keypad having various key buttons protruding out of the front case of the terminal body and a printed circuit board on which the keypad is stacked are moved up and down through a transfer means, and the key buttons are selectively By being accommodated inside the front case, it is to provide a portable terminal that can prevent a malfunction due to a wrong key press in the standby state.

Handheld Terminal, Keypad, Key Button, Key Press

Description

Portable terminal {MOBILE PHONE}

1 is a view showing a portable terminal according to the present invention

Figure 2 is a portable terminal according to the present invention, a diagram showing an operating state thereof

<Description of Symbols for Main Parts of Drawings>

1: upper case 2: lower case

3: keypad 4: key button

5: printed circuit board 6: transfer means

7: drive device 8: screw part

9: nut part 10: control part

11: end key button 12: guide means

13: protrusion 14: guide groove

The present invention relates to a portable terminal, and more particularly, to a portable terminal capable of easily preventing a wrong key press by automatically adjusting the lifting and lowering of the key button.

Recently, the portable terminal has been widely used as a convenience that anyone can easily carry and use freely anywhere.

These portable terminals are classified into a bar type, a flip type, a folding type and a slide type terminal in appearance, and are classified into a wrist wearing type or a necklace wearing type type according to a wearing method.

On the other hand, in the case of a flip type or a folding type portable terminal, when not in use, various key buttons are protected by being covered with a flip or folder so as to prevent them from being damaged or misoperated from external pressure.

However, in the case of a bar-type portable terminal, key buttons for various operations are configured to protrude to the outside of the front of the main body. In the standby state, the key buttons are unintentionally pressed by an external force and thus the user is pressed. There was a problem that a malfunction such as an unwanted character is displayed on the terminal, or an unwanted call is made.

Accordingly, the present invention has been made to solve the above problems, and prevents malfunction due to incorrect key presses in the standby state, and at the same time automatically switches to a state for preventing such malfunctions, thereby preventing convenience of use. The purpose is to provide a portable terminal.

In order to achieve the above object, the portable terminal according to the present invention is a front / rear case is coupled, the terminal body to form an internal space; A printed circuit board disposed in the internal space; A keypad laminated on the printed circuit board and having a key button protruding out of the front case; Transfer means formed in the inner space and configured to raise / lower the keypad so that the key button can be selectively accommodated in the inner space; And a control unit for controlling the driving of the transfer means by a predetermined input operation.

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Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a view showing a portable terminal according to the present invention, Figure 2 is a portable terminal according to the present invention, a view showing an operating state thereof.

As shown, the portable terminal according to the present invention has a circuit for generating a key selection signal is implemented and a printed circuit board (5) installed in the interior space of the front / rear case (1/2) forming the terminal body, The keypad 3 is stacked on the printed circuit board 5 and includes various key buttons 4 formed to protrude to the outside of the front case 1.

In addition, the bottom of the printed circuit board 5 is provided with a transfer means 6 for raising and lowering the keypad 3 together with the printed circuit board 5, which will be described later.

That is, the conveying means 6 is integrally addressed to the driving device 7 such as a motor fixedly installed at one side of the lower case 2 and the driving device 7 to drive the driving device 7. And a nut part 9 integrally installed on the bottom surface of the printed circuit board 5 so that the screw part 8 rotates forward and reversely, and is coupled to face the screw part 8. Preferably it is provided in the center of the bottom surface of the printed circuit board (5).

Accordingly, the printed circuit board 5 and the keypad 3 may be raised or lowered by the driving of the driving device 7. The printed circuit board 5 may be driven by the driving device 7. And when the keypad 3 is lowered, various key buttons 4 protruding out of the front case 1 are accommodated in the front case 1 in a recessed manner.

In addition, the driving device 7 of the transfer means 6 is driven or not under the control of the control unit 10, the control unit 10 is a key button (4) provided on the keypad (3) Control operation of the driving device 7 and whether forward / reverse rotation is performed by judging a use state and a standby state by receiving an operation signal of an end key button 11 which is one of do.

That is, when the end key button 11, which is one of the key buttons 4 provided on the keypad 3, is pressed as a predetermined input operation to the control unit 10 in the use state and the predetermined time elapses, the control unit 10 ) Determines this as a standby state, and drives the driving device 7 so that the printed circuit board 5 and the keypad 3 can be lowered.

Accordingly, various key buttons 4 protruding out of the front case 1 are accommodated in the front case 1, thereby preventing malfunction due to incorrect key presses in the standby state.

On the contrary, when the end key button 11 is pressed in order to use the various key buttons 4 of the portable terminal in the standby state, the controller 10 determines that it is in the use state, and the printed circuit The driving device 7 is driven in the opposite direction as when the substrate 5 and the keypad 3 are lowered so that the printed circuit board 5 and the keypad 3 are raised.

On the other hand, the bottom of the printed circuit board 5 is provided with a guide means 12 for guiding the support when the printed circuit board 5 is raised / lowered, the guide means 12 is the printed circuit board 5 ) And a protrusion 13 protruding from one of the lower cases 2 to the other, and a guide groove 14 into which the protrusion 13 is inserted and slid. In the present invention, the printed circuit A protrusion 13 having a quadrangular cross section is formed on a bottom surface of the substrate 5, and a guide groove 14 is formed on the inner surface of the lower case 2 corresponding to the protrusion 13 to insert and slide the protrusion 13. It was.

Thus, the keypad 3 and the printed circuit board 5 can be lifted / lowered by the transfer means 6 without being separated by the guide means 12.

In addition, it is preferable that at least one guide means 12 is provided at each corner portion of the bottom surface of the printed circuit board 5.

As described above, according to the portable terminal according to the present invention, a keypad having various key buttons protruding out of the front case of the terminal body and a printed circuit board on which the keypad is stacked are transferred through a transfer means controlled by a controller. / By lowering and allowing the key button to be selectively accommodated inside the front case, not only prevents malfunction due to wrong key presses in the standby state, but also automatically switches the state to prevent such a malfunction. The convenience in use can be prevented from being impaired.

Claims (7)

Front and rear case is coupled, the terminal body to form an internal space; A printed circuit board disposed in the internal space; A keypad laminated on the printed circuit board and having a key button protruding out of the front case; Transfer means formed in the inner space and configured to raise / lower the keypad so that the key button can be selectively accommodated in the inner space; A portable terminal comprising a control unit for controlling the driving of the transfer means by a predetermined input operation. The method of claim 1, wherein the transfer means, A driving device installed in the inner space; A screw unit that is addressed to the driving device and rotates forward / backward according to the driving of the driving device; And a nut part installed on the bottom surface of the printed circuit board so as to be coupled to the screw part. The method of claim 1, The predetermined input operation is a portable terminal, characterized in that the pressing operation of one of the key button. delete The method according to claim 1 or 2, And a guide means installed on a bottom surface of the printed circuit board and supporting the lifting / lowering of the printed circuit board. The method of claim 5, wherein the guide means, A protrusion protruding from one of the printed circuit board and the lower case to another; Portable terminal, characterized in that it comprises a guide groove which is inserted and the protrusion is sliding. The method of claim 5, wherein the guide means, At least one four at each corner of the bottom surface of the printed circuit board, characterized in that the portable terminal.

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