KR101137669B1 - Open and close structure of slide type mobile communication terminal - Google Patents

Abstract

The present invention relates to a slide-type mobile communication terminal, and more particularly to an opening and closing operation of the slide-type mobile communication terminal. In the conventional slide-type mobile communication terminal, when the slide part is opened by the slide motion with respect to the main body part, the front part of the main body part and the slide part are parallel with each other, and the front part of the main body part and the rear part of the slide part are in contact with each other. Since the user does not consider the angle formed by the user's mouth and ears when making a call using the terminal, there is a problem in that the contact between the mobile communication terminal and the user is inferior and visibility is not considered because the angle of view of the LCD screen is not considered. The present invention is to change the coupling structure of the main body portion and the slide portion to open the slide type mobile communication terminal to open the front and the slide portion at a constant angle to solve the problem of inferior contact feeling during the call and the visibility of the LCD screen To increase.

Description

OPEN AND CLOSE STRUCTURE OF SLIDE TYPE MOBILE COMMUNICATION TERMINAL}

1 is a perspective view illustrating an open state of a slide unit of a conventional slide type mobile communication terminal;

FIG. 2 is a cross-sectional view taken along line II-II of FIG. 1;

3 is an exploded perspective view showing an exploded slide type mobile communication terminal of the present invention;

4 is a longitudinal side view of a slide-type mobile communication terminal of the present invention;

Figure 5 is a side view in the width direction of the slide-type mobile communication terminal of the present invention,

6 and 7 are perspective views showing the structure of the first link and the second link of the slide-type mobile communication terminal of the present invention,

8 is an operation diagram showing the operation of the slide-type mobile communication terminal of the present invention.

DESCRIPTION OF REFERENCE NUMERALS

10: main body 16a: rear case

16b: front case 17: guide rail

17a: stopper 18: guide protrusion

19a: limiting projection 19b: limiting projection                 

19c: elastic spring 20: slide

23: slide casing 24: through groove

30: first link 31: guide wheel

33: coupling pin 34: coupling pin ball

40: second link 42: connection pin

43: rotating pin

The present invention relates to a mobile communication terminal, and more particularly, to a structure in which the slide portion is opened while forming a constant angle with respect to the main body portion of the mobile communication terminal in the opening and closing operation of the slide-type mobile communication terminal.

In general, a bar type, flip type, and folder type mobile communication terminals have been used. With the introduction of IMT-2000 services, camera functions, and wireless Internet, mobile communication terminals display a variety of information as images, and therefore, a necessity for introducing a large liquid crystal screen has been required.

In the case of a bar type mobile terminal or a flip type mobile terminal, the size of the entire mobile communication terminal was increased in order to mount a large LCD screen. In the case of a folder type mobile terminal, a large LCD screen was larger than a bar type or a flip type mobile terminal. This could be used, but could only accommodate less than half the size of the mobile terminal. In response to this, recently, a liquid crystal display for displaying image information and a keypad for inputting information are superimposed in the same space, and thus a slide type mobile communication terminal capable of mounting a large liquid crystal display as a small mobile communication terminal is used. have.

1 is a perspective view illustrating an open state of a slide unit of a conventional slide type mobile communication terminal, and FIG. 2 is a sectional view taken along line II-II of FIG. 1.

As shown in Figs. 1 and 2, the conventional slide-type mobile communication terminal includes a main body 10 and a liquid crystal display 21, which are in charge of communication control and are equipped with a keypad 11 as an input device. It is composed of a slide unit 20 that can move by sliding.

The main body 10 includes a keypad 11 through which a user inputs information, a microphone 12 configured to transmit a voice by the user, and an antenna 13 formed on an upper end of the main body 10 to receive a communication signal. ), A circuit board (not shown) in charge of communication control, a battery (14) formed to be detachably attached to the rear of the main body to supply power to the circuit board (not shown), and formed to surround the circuit board. A rear case 16a and a front case 16b are provided.

The slide unit 20 includes a liquid crystal display 21 for displaying various image information, a receiver 22 for receiving a voice during a call and transmitting the voice to a user, and the liquid crystal display 21 and a receiver 22 It consists of a slide casing 23 formed to surround.

Here, the opening and closing device of the conventional slide-type mobile communication terminal is configured such that the slide unit 20 is opened and closed by vertical movement with respect to the main body unit 10, and more specifically, the opening and closing operation of the main body unit 10 is performed. The guide protrusion 18 formed in the front case 16b and the guide groove 25 formed on the rear surface of the slide part 20 to move up and down in engagement with the guide protrusion 18 for smoothly moving. . That is, the slide unit 20 with respect to the main body unit 10 is mobile communication by moving up and down by engaging the guide protrusion 18 formed in the main body unit 10 along the guide groove 25 formed in the slide unit 20. The terminal is opened and closed.

However, in the opening and closing structure of the slide type mobile communication terminal as described above, when the slide unit 20 is opened by the slide motion with respect to the main body unit 10, the front and the slide unit 20 of the main body unit 10 are closed. Opening is completed in a state where a part of the front case 16b and a part of the rear surface of the slide unit 20 are in contact with each other in parallel. When the user makes a call to the mobile communication terminal opened as described above, the angle formed by the user's mouth and ears is not considered, and thus there is a problem in that the contact between the user and the mobile communication terminal is inferior.

In addition, due to the structure in which the slide unit 20 is always parallel and open with respect to the main body unit 10, there is a problem in that the user cannot provide a clear image of the LCD screen 21, thereby reducing visibility.

The present invention has been made in view of the above problems of the conventional slide-type mobile communication terminal, and is opened while forming a predetermined angle with respect to the main body by changing the opening and closing structure of the conventional slide-type mobile communication terminal. It is an object of the present invention to provide an opening and closing structure of the slide-type mobile communication terminal is completed.

In order to achieve the object of the present invention, the main body consisting of a combination of the front case and the rear case; A slide unit slidably coupled to the main body unit; A first link inserted into a slide groove formed in the front case of the main body portion and a through groove formed through the rear surface of the slide portion at a position corresponding to the slide groove to form a predetermined angle when the slide portion is opened with respect to the front surface of the main body portion; A second link; It provides an opening and closing structure of the slide-type mobile communication terminal comprising a guide rail for guiding the movement of the first link and the second link formed in the rear case of the main body.

Hereinafter, the opening and closing device of a mobile communication terminal according to the present invention will be described in detail with reference to an embodiment shown in the accompanying drawings.

However, the same reference numerals are given to the same parts as the above-described configuration, and detailed description thereof will be omitted.

Figure 3 is an exploded perspective view showing an exploded view of the slide-type mobile communication terminal of the present invention, Figure 4 is a longitudinal side view of the slide-type mobile communication terminal of the present invention, Figure 5 is the width of the slide-type mobile communication terminal of the present invention 6 and 7 are perspective views showing the structure of the first link and the second link of the slide-type mobile communication terminal of the present invention, and FIG. 8 is a view illustrating the operation of the slide-type mobile communication terminal of the present invention. It is also working.                     

3 to 5, the opening and closing structure of the slide-type mobile communication terminal according to the present invention is a main body portion 10 having a constant internal space by the combination of the front case (16b) and the rear case (16a) and The first link 30 and the second link for opening the slide unit 20 and the slide unit 20 to be slidably coupled to the main body 10 and the main body 10 to form a predetermined angle. It consists of 40.

Connection pins 32 and 42 to be described later are inserted into the front case 16b of the main body portion 10 so that the slide grooves 12 having a predetermined length are formed to penetrate on both sides so as to slide. A plurality of guide rails 17 having a yaw-shaped cross section for guiding the slide movement of the first link 30 and the second link 40 are formed on both sides, respectively. The guide rail 17 has a plate shape between the guide rails 17 in a direction perpendicular to the longitudinal direction of the guide rails 17 to limit the movement of the first link 30 and the second link 40. The stoppers 17a, 17b, 17c, and 17d of the guide wheels 41 of the second link 40 when the slide unit 20 is opened to maintain the angle formed by the second link 40 at regular intervals. The protruding protrusion 19a is formed on the bottom surface of the guide rail 17 adjacent to the stopper 17a in contact with the bottom surface. The restricting protrusion 19a is provided with an elastic spring 19c at a lower end thereof to elastically move in a direction perpendicular to the guide rail 17, and a protrusion groove 19b recessed in a lower end surface of the guide rail 17. Is inserted into

The through pins 24 are formed at positions corresponding to the slide grooves 12 so that the connecting pins 32 and 42 are inserted into the rear sides of the slide unit 20 so that the connecting pins 32 and 42 can rotate at a predetermined angle. The pin ring 26 of the through groove 24 in the slide unit 20 is rotatably coupled to the coupling pin 33 of the first link 30 and the rotation pin 43 of the second link 40. Form on both sides.

6 and 7, the first link 30 includes a plurality of guide wheels 31, a coupling pin 33, and a connecting pin 32, and the second link 40 includes a plurality of guide links 31. It consists of two guide wheels 41, a single connecting pin 42 and the rotary pin 43.

The first link 30 has a member that is fixedly coupled to the pin ring 26 on one side and a connecting pin 36 having an 'I' shape, on which the tubular coupling pin hole 34 is mounted on the other side, and on one side. A connecting pin having a plurality of tubular coupling pin holes 34 formed at a predetermined interval so that the disc-shaped guide wheel 31 is rotatably mounted and the coupling pin hole 34 is inserted at the other side thereof. 32). The connecting pins 32 and 36 are coupled to each other in a rotatable manner by inserting a coupling pin into the coupling pin hole 34. Elastic springs between the connecting pins 32 and 36 to prevent the connecting pin 32 from applying pressure to the front surface of the slide unit 20 to prevent the slide unit 20 from being separated from the main body unit 10. Fit (35). The connection pin 32 is fixedly coupled to the pin ring 26 formed inside the slide unit 20 in parallel with the front of the slide unit 20, and one side of the other connection pin 36 is the connection pin. The guide wheel 31 rotatably mounted to the 32 and mounted on the other side is slidably seated on the guide rail 17 to connect the main body 10 and the slide 20.

The second link 40 is in the shape of 'I' rotatably mounted to the guide wheel 41 of the disk-shaped slideably seated on the guide rail 17 on one side and the pin ring 26 on the other side. And a rotation pin 43 rotatably mounted thereto, and the guide wheel 41 and the rotation pin 43 are connected to each other at a predetermined distance through the connection pin 42.

The opening and closing structure of the slide-type mobile communication terminal according to the present invention operates as follows.

As shown in FIG. 8A, in the state in which the slide unit 20 is closed, the guide wheels 31 and 41 are in contact with the stoppers 17b and 17d, respectively. As the slide movement starts, the guide wheels 31 and 41 are separated from the stoppers 17b and 17d, and the guide wheels 31 and 41 rotate along the guide rails 17 and move forward. When the user pushes the slide unit 20 with a stronger force when the guide wheel 41 of the second link 40 comes into contact with the limiting protrusion 19a, the guide wheel 41 causes the limiting protrusion. 19a is pressed and the elastic spring 19c mounted at the lower end of the limiting projection 19a is compressed. When the guide wheel 41 is further advanced while pressing the front of the limiting projection (19a) the guide wheel 41 is in contact with another stopper (17a) the slide movement of the guide wheel 41 is limited and pressed The restricted protrusion 19a is restored by the elastic spring 19c to be in the state (b) of FIG. 8. In this state, when the slide unit 20 is further advanced, the connecting pin 42 of the second link 40 forms a right angle with the front surface of the main body unit 10, and at the same time, the slide unit 20 is A predetermined angle is formed with respect to the front surface of the main body part 10, and it will be in the state shown in FIG.8 (c). If the slide unit 20 is further advanced in the above state, the guide wheel 31 of the first link 30 comes into contact with the stopper 17c, thereby limiting the slide movement of the slide unit 20 and simultaneously. An angle formed by the connection pin 42 with the front surface of the main body 10 is over the right angle, and thus the state of FIG. 8 (d) is obtained. At this time, since the slide portion 20 is pressed toward the front of the main body portion 10 by the elastic spring 35 mounted on the first link 30, the main body portion 10 and the slide portion 20. The angle formed therebetween is maintained and the slide portion 20 is not separated from the main body portion 10.

The closing action of the slide part 20 operates in the reverse order of the opening action. When the slide unit 20 is pulled down in the state of FIG. 8D, the guide wheel 41 of the second link 40 is separated from the stopper 17a and the connecting pin of the second link 40 is removed. Reference numeral 42 is at right angles to the front surface of the main body 10 again to be in the state (c) of FIG. If the slide portion 20 is further pulled down, the formed angle disappears and becomes the state of FIG. When the slide unit 20 is slid continuously in the closing direction, the elastic spring 19c mounted at the lower end of the limiting protrusion 19a is compressed to slide the guide wheel 41 while pressing the limiting protrusion 19a. To exercise. When the guide wheel 41 passes the limiting protrusion 19a, the limiting protrusion 19a is restored by the elastic spring 19c and the guide wheels 31 and 41 are stopped as the slide motion is further progressed. When it comes in contact with (17b, 17d), the slide movement is limited and the state of Fig. 8 (a) is completed, the closing action of the slide unit 20 is completed.

The opening and closing structure of the slide-type mobile communication terminal according to the present invention changes the coupling structure of the main body part and the slide part so that the front and the slide part of the main body part are opened at a constant angle when the slide-type mobile communication terminal is opened to move with the user during a call. It provides an effect of increasing the adhesion of the communication terminal and the visibility of the LCD screen mounted on the slide portion.

Claims (5)

A main body configured by a combination of the front case and the rear case; A slide unit slidably coupled to the main body unit; A first link inserted into a slide groove formed in the front case of the main body portion and a through groove formed through the rear surface of the slide portion at a position corresponding to the slide groove to form a predetermined angle when the slide portion is opened with respect to the front surface of the main body portion; A second link; And a guide rail for guiding movement of the first link and the second link formed on the rear case of the main body. The method of claim 1, And a plurality of plate-shaped stoppers are provided on the guide rail at regular intervals to limit the movement of the first link and the second link. The method of claim 1, The first link is composed of a combination of a plurality of guide wheels, coupling pins and connecting pins, and the second link is a slide type mobile communication terminal, characterized in that formed by the combination of a plurality of guide wheels, a single rotating pin and a connecting pin. . The method of claim 3, Restriction protrusions are mounted on both bottom surfaces of the guide rails to limit the slide motion of the plurality of guide wheels of the second link when opening the slide type mobile communication terminal to maintain the angle formed between the main body part and the slide part. Slide type mobile communication terminal characterized in that. The method of claim 3, The first link further comprises an elastic spring mounted between the plurality of connecting pins to maintain the angle formed when the slide unit is opened with respect to the main body.

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