KR100636531B1 - Mobile phone having keypad for upward-downward movement - Google Patents

Abstract

A mobile communication terminal with keypad raising devices is provided to allow a keypad to be raised as a front cover of the terminal slides on a body of the terminal, thereby realizing user convenience. A keypad(110) is equipped with a hinge combiner on a rear side. A horizontal moving member is combined with a front cover(200) of a mobile communication terminal, and has a restoring unit returning to an original position when the front cover(200) is closed, as sliding parallel in length direction of a body(100), in opposite direction as the front cover(200) slides on. More than one horizontal guide rail guides movement of the horizontal moving member. Each one side of more than one of keypad raising members(151,152) is connected to the horizontal moving member to raise the keypad(110) in a direction orthogonal to the sliding direction of the horizontal moving member, while the other sides are connected to the hinge combiner of the keypad(110). A vertical guide rail(160) guides a vertical raising action of the keypad(110).

Description

Mobile phone having keypad for up-downward movement

1 is a perspective view illustrating an exemplary sliding type mobile communication terminal.

2A and 2B are cross-sectional views of a lower end of a mobile communication terminal having a keypad raising device according to an embodiment of the present invention.

3A is a side cross-sectional view of the mobile communication terminal seen from A of FIG. 2A.

3B is a perspective view illustrating the horizontal moving member and the pivot member separately.

4A to 4C are side cross-sectional views illustrating a mobile communication terminal as seen in B of FIG. 2A, in which a keypad is raised according to sliding of a front cover.

<Description of main parts of drawing>

100: main body 110: keypad

120: display unit 150: horizontal moving member

151,152: keypad rising member 153: tension spring

154: pivot member 156: pin

157 groove 159 pogo pin

170: stopper 180: guide rail

190: guide rail pin 200: front cover

210: protrusion

The present invention relates to a mobile communication terminal having a sliding type keypad lifting device, and more particularly, a mobile communication device having a keypad lifting device for raising the keypad while the front cover of the mobile communication terminal slides on the main body. It relates to a terminal.

Mobile communication terminals can be generally classified into a flip-type, a folder-type, and a sliding-type according to their appearance or operation.

In general, a flip type mobile communication terminal has a display unit, such as a liquid crystal display (LCD), and a keypad for inputting keys on the same body, and protects the keypad by using a hinged front cover at the bottom of the mobile communication terminal. To have a way.

In addition, the folder-type mobile communication terminal can be opened and closed by connecting the two folder parts by a hinge, it means a mobile communication terminal of the method of forming a display unit and a keypad on the surface facing each other. The folder-type mobile communication terminal may close two folders to protect the display unit and the keypad, open the two folders to receive a call, or use a keypad to perform an intended function.

In addition, the sliding type mobile communication terminal is arranged so that the two sliding parts overlap each other, and the display unit and the keypad to each sliding part in the same direction. In general, the sliding type mobile phone may expose the display unit or the keypad on the rear side by sliding the front sliding part.

For example, the sliding type mobile communication terminal may expose the keypad formed on the rear sliding part by pushing up the front sliding part with the display. Meanwhile, as shown in FIG. 1, the display unit 120 formed at the front of the sliding method is integrally formed with the lower main body 100, and various function keys (navy keys) are provided at the lower end of the display. It is known to expose the keypad 110 by sliding the portion of the front cover 200 down.

Particularly, in the sliding type mobile communication terminal, a method of exposing the keypad 110 formed on the rear sliding part by sliding the front sliding part with the display unit 120 and the lower end of the display as shown in FIG. In the case of exposing the keypad 110 by sliding down a portion of the front cover 200 in which the separate function keys (navy keys) are separated, the height of the display unit 120 disposed in front of the display unit 120 is relatively high. The difference occurs in the height of the keypad 110, which is hidden at the bottom and exposed.

In this case, due to the generated height difference, the keypad 110 is formed in the shape shown in FIG. 1 in which the recess is recessed, thereby causing inconvenience when pressing a key of the keypad 110 adjacent to the front sliding part. Performing a task that requires a lot of key manipulation causes considerable inconvenience to the user.

The present invention has been invented to solve this problem, and as in the prior art, the keypad is provided with a keypad raising device for raising the keypad when the front cover is slid to overcome the difficulty of the user pressing a key due to the depression. An object of the present invention is to provide a mobile communication terminal.

An object of the present invention is a mobile communication terminal having a keypad raising device, the keypad having a hinge coupling portion on the back; The mobile communication terminal is coupled to be interlocked by the front cover and the connecting means, and as the front cover is slid, sliding in parallel in the longitudinal direction of the main body in the opposite direction, when the front cover is closed, to the original position Horizontal moving member with returning means; At least one horizontal guide rail for guiding movement of the horizontal moving member; At least one keypad lift member connected to the horizontal shift member for raising the keypad in a direction orthogonal to a sliding direction of the horizontal shift member, the other side of which is connected to a hinge coupling portion of the keypad: vertical rise of the keypad Guiding is achieved by providing a mobile communication terminal with a keypad lifting device, characterized in that it comprises a vertical guide rail.

Preferably, the horizontal moving members of the keypad lifting device are individually configured to be symmetrical on both sides of the mobile communication terminal, or may be integrally formed.

Preferably, the restoring means of the horizontal moving member is composed of a tension spring.

Also preferably, the connecting means of the horizontal movable member includes a projection projecting toward the main body direction on one side of the front cover and a pivot member that is pivoted in the opposite direction in a lever manner when it is opposed to the projection, the pivot A pin formed at one end of the member is coupled to a groove formed at one side of the horizontal movable member.

Preferably, the connecting means of the horizontal movable member may be driven by sliding in the opposite direction in engagement with the gear disposed on the front cover and the gear formed on the main body.

Preferably, the keypad is provided with a magnetic, and when the keypad lifting member is fully raised, a magnetic material is provided on the upper side of the keypad lifting guide rail so that the keypad is seated on the main body by the magnetic of the keypad.

Also preferably, the keypad device of the present invention is disposed on the rear portion of the keypad, and as the front cover slides, a second keypad lift portion is disposed at an end portion of the horizontal moving member reaching the lower region of the keypad. have.

Hereinafter, a mobile communication terminal having a keypad raising device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

In order to facilitate the description, the display unit formed at the front of the sliding type mobile communication terminal is integrally formed with the main body, and the front cover part having various function keys at the lower end of the display is slid down to expose the keypad. Although illustrated as being driven, the present invention is not limited to this type of sliding mobile communication terminal.

2A is a cross-sectional view of a lower end of a mobile communication terminal for explaining a mobile communication terminal having a keypad raising device according to an embodiment of the present invention. The mobile communication terminal of an embodiment of the present invention is composed of a display unit 120 disposed on the upper part of the front part, a front cover 200 slidably arranged, for example, a front sliding part and a main body 100.

2a schematically illustrates a connection configuration of the horizontal moving member 150 in which the front cover of the mobile communication terminal is coupled to be interlocked by the connecting means of the embodiment, for example, the pivot member 154. As shown in FIG. 2A, the guide pin 190 mounted at one side of the horizontal moving member 150 may move horizontally along the horizontal guide rail 180 formed at one side of the inner body 100. The horizontal guide rail 180 is formed in a shape to guide the guide pin 190 in a horizontal or desired direction.

Although the horizontal moving member 150 of the mobile communication terminal having the keypad raising device of FIG. 2A is configured independently on both sides of the mobile communication terminal, as shown in FIG. 2B, the horizontal moving member 150 May be integrally formed.

3A is a side cross-sectional view of the mobile communication terminal of FIG. 2A viewed from the A direction, and FIG. 3B is a perspective view illustrating the horizontal moving member 150 and the pivot member 154. As shown in FIG. 3A, the main body 100 includes a pivot member 154, a horizontal movable member 150, and keypad lifters 151 and 152. On the other hand, a protrusion 210 protruding toward the main body 100 is formed in a predetermined portion of the front cover 200. In addition, a stopper 165 is provided at one side of the main body of the mobile communication terminal 100 so as to limit the movement of the horizontal member 150.

As shown in Figure 3b, the horizontal movable member 150, preferably has a side shape of the letter c, the horizontal movable member 150 is a groove 157 in a portion protruding in the orthogonal direction from the lower end of one side Is formed, and the pin 156 protruding from the pivot member 154 in the groove 157 is coupled to reciprocate therein. Due to this coupling, when the pivot member 154 is pivoted from a, the height displacement with respect to the horizontal member 150 is compensated.

In addition, the restoring means, for example, the tension spring 153 is coupled to the lower inner side wall of the main body 100 formed on one side of the horizontal movable member 150, for example the guide pin 159. The keypad lifting member 152 is disposed at the other end corresponding to the end to which the pivot member 154 is coupled so that the keypad lifting member 152 is pivoted based on f. Is arranged to pivot. The keypad lifting member 151 is connected to the coupling hole formed on the back of the keypad 110 by a hinge pin can be a pivoting movement.

In addition, a vertical guide rail 160 is formed in an orthogonal direction over a portion where the rear surface side of the display unit 120 and the side surface of the keypad 110 receiving portion of the main body 100 are connected to each other. The vertical guide rail 160 is formed on the side of the main body 100 of the accommodation portion of the convenience keypad 110.

Figure 4 is a side cross-sectional view of the keypad up and down movement according to the vertical movement of the front cover 200 according to an embodiment of the present invention in the B direction of the mobile communication terminal of Figure 2a. Referring to Figure 4, it will be described that the mobile communication terminal equipped with a keypad lifting device in accordance with the component according to an embodiment of the present invention.

4A is a view illustrating a state in which the front cover 120 is closed. As shown in Figure 4a, in the state that the front cover 120 is closed, the pivot member 154 pivoting from a coupled to one side of the horizontal movable member 150 is not operated, accordingly, the tension spring ( 153 maintains its original state, and the keypad lift members 151 and 152 are also held in a closed state so that the keypad 110 and the horizontal moving member 150 make contact with each other at the shortest distance.

4B is a diagram illustrating a process of raising the keypad 110 while the front cover 200 is opened. When the front cover 200 slides downward along any sliding part (not shown) of the main body 100, the protrusion 210 disposed on the upper side of the front cover 200 maintains the original state. A portion h protruding toward the front cover 200 from a portion of the pivot member 154 is engaged to pivot the pivot member 154 in an upward direction in a lever manner. At this time, as the pin 156 of the pivot member 153 slides in the groove 157 of the pivot member 153, the pivot member 153 pushes the horizontal member 150 upward. The turning angle is preferably within 90 °, but may be turned higher.

When the horizontal member 150 slides upward toward the display unit 120 according to the pivoting movement of the pivot member 153, as shown in FIG. 4A, the keypad lift members 151 and 152 are closed. 4B, the end portion of the keypad lifting member is pivoted on the hinge shafts e and c formed on the rear surface of the keypad 11, thereby moving the keypad 110 to the vertical guide rail 160. As shown in FIG. , Along with 161).

4C is a diagram illustrating that the keypad 110 is fully raised by the keypad lifter. When the front cover 200 is fully slid and positioned at the lower end, the pivot member 153 pivots as much as possible so that the keypad upper members 151 and 152 are preferably perpendicular to the horizontal movement direction. The keypad 110 is raised as much as possible.

Although not illustrated in the drawings of the present invention, the magnetic keypad may be disposed on one side of the keypad 110, and the magnetic keypad may be coupled to a magnetic force at the upper end of the vertical guide rail 160 to fix the keypad. Preferably, the tension spring 153 has a force exceeding the magnetic force.

In another embodiment of the present invention, the front cover 200 and the horizontal moving member 150 has a gear unit for converting the linear movement of the front cover 200 by the connecting means of the horizontal moving member 150 to the rotary motion And it may be composed of a gear unit for converting the rotational movement back to a linear movement. Preferably, a rack gear is used, and the front cover 200 and the horizontal moving member 150 each have a straight tooth. Accordingly, by the downward and upward sliding of the front cover 200, the teeth of the gear portion can be engaged with each other and slide in the opposite direction.

In addition, the keypad lifter according to another embodiment of the present invention is disposed on the rear portion of the keypad, and is opened by the front cover so that the second keypad lifter is disposed at an end portion where the horizontal movable member reaches the lower area of the keypad. Thus, the keypad ascending operation can be divided into two steps.

 As can be seen from the above-described embodiments of the present invention, in the case of a mobile communication terminal which slides the front sliding part to expose the keypad of the rear sliding part, in the related art, the keypad is recessed, which causes inconvenience in pressing a key. When the front cover is slid by applying a mobile communication terminal having a keypad raising device of the keypad, the keypad is raised to overcome the problems in the prior art.

Claims (8)

As a mobile communication terminal with a keypad lift device, A keypad with a hinge coupling at the back; The mobile communication terminal is coupled to be interlocked by the front cover and the connecting means, and as the front cover is slid, sliding in parallel in the longitudinal direction of the main body in the opposite direction, when the front cover is closed, to the original position Horizontal moving member with returning means; At least one horizontal guide rail for guiding movement of the horizontal moving member; One side is connected to the horizontal movable member to raise the keypad in a direction orthogonal to the sliding direction of the horizontal movable member, the other side is one or more keypad lift member connected to the hinge coupling of the keypad: A mobile terminal with a keypad lifting device, characterized in that it comprises a vertical guide rail for guiding the vertical rise of the keypad. The method of claim 1, Mobile communication terminal having a keypad lifting device, characterized in that the horizontal moving member is configured to be symmetrically separated. The method of claim 1, A mobile communication terminal having a keypad raising device, characterized in that the horizontal member is formed integrally. The method of claim 1, Mobile communication terminal having a keypad lifting device, characterized in that the restoring means of the horizontal moving member is a tension spring. The method of claim 1, The connecting means of the horizontal movable member includes a protrusion extending toward the main body direction on one side of the front cover and a pivot member which is pivoted in the opposite direction in a lever manner when it is opposed to the protrusion, and is formed at one end of the pivot member. And a pin is coupled to a groove formed at one side of the horizontal moving member. The method of claim 1, The connecting means of the horizontal moving member is composed of a gear for converting the linear motion to the front cover into a rotational movement and a gear for converting the rotational movement back to a linear movement, the gears of the gears are engaged with each other sliding in the opposite direction Mobile communication terminal with a keypad lifting device, characterized in that the. The keypad raising device according to claim 1, wherein a magnetic material is provided on an upper end side of the keypad lifting guide rail so that the keypad is seated on the main body by the magnetic of the keypad when the keypad lifting member is completely raised. Equipped with a mobile terminal. The method of claim 1, And a second keypad lifter disposed at an end portion of the keypad, the second keypad lifter being disposed at an end portion of the keypad, which is opened by the cover to reach the lower region of the keypad.

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