KR20060042658A - Mobile communication terminal with shake prevention key button - Google Patents

Abstract

The present invention is equipped with a mobile communication terminal is a key button for operating a variety of functions as well as a call is a vertical height is designed to be high due to the structural factors of the mobile communication terminal, including two or more functions in one key When the button is designed to be operated, the gap and flow gap generated excessively between the key button and the object are minimized to prevent shaking of the key button, and the injection molding is easily separated from the mold.

The configuration of the present invention, there is provided a flow preventing member for forming a pressing portion while having a predetermined height to prevent the shaking of the key button by reducing the gap formed between the injection molding and the key button by positioning the key button up between the key button and the keypad. A mobile communication terminal having a flow preventing key button is provided.

      Button, pad, floating, shake, terminal, injection

Description

Mobile Communication Terminal with Shake Prevention key button             

1A is a plan view illustrating a state in which a key button is provided on a conventional general keypad.

Figure 1b is a cross-sectional view showing a state cut along the A-A line of 1a is coupled between the key button and the injection molding.

2A is a plan view showing another example in which a key button is provided on a conventional general keypad.

FIG. 2B is a cross-sectional view showing the state cut along the line B-B of FIG.

Figure 3a is a plan view showing a flow preventing key button of the present invention.

3B is a cross-sectional view illustrating a state in which a flow preventing key button is coupled to an injection molded product, taken along line C-C of FIG. 3A.

Figure 3c is a perspective view showing a flow preventing member of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: Keypad 12: Key Button

14: actuator 16: injection molding

20: guide rib 22: flange

30: flow preventing member

The present invention relates to a mobile communication terminal having a flow preventing key button, and more particularly, in the case where the vertical height of the key button is designed high, and the vertical height is high so that two or more functions can be operated by one key button. When designed, it is to minimize the gap and flow gap that is excessively formed between the key button and the injection molding, to prevent the shaking of the key button, and also to facilitate the separation of the injection molding from the mold.

In general, a widely used mobile communication terminal is provided with a plurality of key buttons to perform a variety of functions, the user presses the corresponding key button to be used. In addition, the design is improved and various new functions (e.g. camera function, camcorder function, editing function, MP3 function, TV reception function) are added, and with it, it is possible to perform two or more functions with one key button. Has also changed.

1A is a plan view showing a state in which a key button is provided in a conventional keypad, and FIG. 1B is a cross-sectional view showing a state cut along the line A-A of FIG.

Referring to the accompanying drawings, first, a plurality of key buttons 12 are properly arranged and arranged on an upper surface of the keypad 10, and one actuator (one actuator) is provided on one key button 12 on the bottom of the keypad 10. 14) consists of a corresponding structure. Therefore, when the key button 12 is pressed, the corresponding actuator 14 is pressed to operate the corresponding function.

However, as mentioned above, there is a case in which the vertical height of the key button 12 is designed to be high due to the structural change of the mobile communication terminal. In this case, the gradient angle formed with the injection molding 16 gradually increases from the lower end of the key button 12 toward the upper end for the smooth operation of the key button 12, thereby increasing the gap a1. In the upper end of the (12), there is a problem that the gap a1 is excessively formed so that the key button 12 is severely shaken.

In addition, when the vertical height of the key button 12 is increased, the guide rib 20 of the injection molding 16 which guides the key button 12 accordingly becomes relatively long, and accordingly, Since the depth of the mold is deeply formed, it is difficult to take out the injection molded product 16 from the mold, and when taking out, the injection molded product 16 is damaged or deformed.

On the other hand, Figure 2a is a plan view showing another example in which a key button is provided on a conventional general keypad, Figure 2b is coupled between the key button and the injection molding, showing a state cut along the line BB of Figure 2a It is a cross section. 1A and 1B, the same components will be described with the same reference numerals.

Referring to the accompanying drawings, a plurality of key buttons 12 are provided on an upper surface of the keypad 10, and a pair of actuators 14 is provided on a bottom surface of the keypad 10 corresponding to one key button 12. Are composed of a structure that is fixed to each other with a predetermined interval. Accordingly, when one side of the key button 12 is pressed, only the corresponding portion is lowered to the eccentric state while the corresponding actuator 14 is pressed to operate the corresponding function, so that the key button ( 12) the seesaw movement is to be able to operate two or more functions on one key button 12.

However, a smooth seesaw is required so that two or more functions can be operated in one key button 12 as described above. In order to smooth the seesaw motion of the key button 12 as described above, a guide rib of the injection molding 16 is basically used. The flow gap D1 must be sufficiently ensured between 20 and the flange 22 of the key button 12 and basically a gap a2 must be provided between the key button 12 and the injection molding 16. Therefore, when the flow gap D1 and the gap a2 become larger, there is a problem in that the shaking of the key button 12 occurs more severely, as described in the above-mentioned problem.

Accordingly, the present invention has been proposed to solve the above problems, when the vertical height of the key button is designed to be high, and when the vertical height is designed to operate two or more functions with one key button, The purpose is to prevent the shaking of the key button through the structural improvement to minimize the gap and flow gap generated excessively between the key button and the injection molding, and also to facilitate the ejection of the injection molding from the mold.

In order to achieve the above object, the present invention provides a pressing portion having a predetermined height to prevent the shaking of the key button by reducing the gap formed between the injection molding and the key button by positioning the key button up between the key button and the keypad. There is a technical feature in a mobile communication terminal having a flow preventing key button provided with a flow preventing member.

In addition, the flow preventing member has a plurality of pressing portions are arranged symmetrically with each other so as to be individually pressed during the seesaw movement, and the movement preventing key buttons, each actuator is located on the bottom of the keypad corresponding to the pressing portion There are technical features in mobile communication terminals.

In addition, the flow preventing member is formed in a cross shape, and has a technical feature in a mobile communication terminal having a flow preventing key button is set for each end of the horizontal and vertical pressing portion is set.

Hereinafter, a preferred embodiment of the present invention will be described in detail based on the accompanying drawings.

Figure 3a is a plan view showing a flow preventing key button of the present invention, Figure 3b is a flow preventing key button is coupled to the injection molding, a cross-sectional view showing a state cut along the line C-C of Figure 3a. In addition, the same reference numerals are assigned to the same parts as in the related art, and other descriptions will be omitted.

Referring to the accompanying drawings, first, between the key button 12 and the keypad 10, the flow preventing member 32 having appropriately formed the pressing portion 30 while having a predetermined height vertically is located in contact with each other It is fixed to each face. This flow preventing member 32 is made of a shape having a skin portion so as not to be pressed simultaneously between the actuator 14 to be described later while the seesaw movement in the up, down, left, right direction as shown in Figure 3c attached to the accompanying drawings. In one preferred embodiment, a cross is formed. However, this shape is only one example for easily explaining the present invention, and other shapes may be appropriately modified.

In addition, the actuator 14 is installed on the bottom surface of the keypad 10 perpendicularly corresponding to the flow preventing member 32. In this case, when one actuator 14 is installed, the center of the flow preventing member 32 It will be most preferable to be installed at the corresponding position vertically, when the plurality of actuators 14 are installed, when the key button 12 is pressed while the seesaw movement in the up, down, left, right direction, the corresponding function Most preferably, the actuators 14 are respectively positioned to correspond to the pressing portions 30 at each end forming the horizontal and vertical portions of the flow preventing member 32 so as to operate independently.

That is, in the drawing shown in the present invention, the actuator 14 is positioned so that the cross-flow flow preventing member 32 performs the seesaw movement in the up and down directions, and also includes the left and right, including the same. The actuator 14 is further provided to perform two functions by performing the seesaw movement in the right direction and is illustrated as a structure capable of independently operating four functions on one key button 12.

When the flow preventing member 32 is disposed between the key button 12 and the keypad 10 as in the present invention, the key button 12 is in an ascending position by the vertical height of the flow preventing member 32. As the gradient angle formed between the 12 and the injection molding 16 is narrowed, the gap a3 is fine but reduced, thereby minimizing the shaking of the key button 12 and improving the aesthetics.

In addition, when the key button 12 is lifted by the flow preventing member 32, the flange 22 of the key button 12 is naturally located in the upper portion, even between the guide ribs 20 of the injection molding 16. As the flow gap D2 is reduced, severe flow phenomenon of the key button 12 is prevented, and the guide rib 20 is also shortened to facilitate the extraction of the injection molding 16 from the mold.

When using the flow prevention key button 12 of the present invention, while maintaining the installation height of the key button 12, there is no problem in the operation of the seesaw movement of the key button 12, and at the same time Shake is minimized to increase the reliability of the product.

 As described above, the present invention is provided with a flow preventing member having a pressing portion for positioning the key button up between the key button and the keypad, and a gap formed between the injection molded product and the key button, and a support gap between the injection rib and the key button. By reducing, there is an effect of preventing the shaking of the key button.

In addition, the gap for the gradient angle between the key button and the injection molding is reduced, and when viewed from the outside, the aesthetics can be improved. Also, the guide rib of the injection molding is formed to have a short length so that the ejection of the injection molding from the mold can be easily effected. You can also expect.

Claims (3)

In the mobile communication terminal consisting of a keypad having an actuator and a key button on the top and bottom, coupled to the injection molding,  Between the key button and the keypad is positioned to raise the key button to reduce the gap formed between the injection molding and the key button to prevent the shaking of the key button is provided with a flow preventing member for forming a pressing portion having a predetermined height Mobile communication terminal with a flow prevention key button. The method of claim 1, The flow preventing member has a flow preventing key button, characterized in that the plurality of pressing parts are arranged symmetrically with each other so as to be individually pressed while the seesaw movement, and the actuators are located on the bottom of the keypad corresponding to the pressing parts. Mobile communication terminal equipped.         The method according to claim 1 or 2, The flow preventing member is formed in a cross shape, the mobile communication terminal having a flow preventing key button, characterized in that the pressing portion is set at each end forming a horizontal and vertical.

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