KR20110006426U - Opening and closing mechanism of cellular phone - Google Patents

Abstract

The present invention allows the two hinge shafts, which are engaged by the rotating cam and the sliding cam in one small case, to be rotated by the mutual engagement of the two drive gears, so that the opening and closing operation of the mobile phone folder is made, thereby preventing external shock. The invention relates to a mobile phone folder opening and closing device that can maximize the stability and significantly reduce the production cost by changing the material and assembly process.

Opening and closing device of the mobile phone folder according to the present invention for this purpose, the first hinge arm is formed on the upper end of the mobile phone body; A second hinge arm formed at an upper end of the mobile phone folder; First and second hinge shafts on which both ends are fixedly disposed at each of the first and second hinge arms; Inserted into the first and second hinge shafts, respectively, sliding in the longitudinal direction along the first and second hinge shafts by the pressing of the spring, each of which is formed in a symmetrical valley and the mountain portion (symmetry) formed on one surface First and second sliding cams; The first and the second hinge shaft is formed integrally with each other and is rotatably installed, the first having a symmetrically formed valley and the ridge formed in mutually symmetrical rotation with the bone and the ridge of the first and second sliding cam And a second rotary cam; The first and second hinge shafts are formed integrally with each other so as to be rotatably installed, and are interlocked so as to be engaged with each other.

Description

OPENING AND CLOSING MECHANISM OF CELLULAR PHONE}

The present invention relates to an opening and closing device of a mobile phone folder, and in more detail, two hinge shafts that are engaged by a rotating cam and a sliding cam in one small case are rotated by interlocking of two driving gears. By opening and closing the mobile phone folder, the mobile phone folder can be opened and closed smoothly by click, and the stability is maximized against external impact, and the production cost can be greatly reduced by changing materials and processes. The opening and closing device of the mobile phone folder.

In general, mobile terminals such as mobile phones, PDAs, notebook computers, and DMB phones are widely used to wirelessly use services such as communication and broadcasting while moving in places other than a fixed location.

The portable terminal is one of the essential necessities that are indispensable in order to enjoy the convenience of life according to the information age. In particular, the mobile terminal is widely distributed to elementary, middle and high school students and the elderly.

As mentioned above, as the demand and user base rapidly increase in recent years, the portable terminal has been expected to expect a product to which new design or function is given.

The mobile terminal is coupled to the mobile phone body having a keypad and the mobile phone folder provided with a display panel so as to be mutually open and close, and may be classified into a folder method, a sliding method, and a swing method according to the opening / closing structure of the folder for the main body. .

In particular, the portable terminal for opening and closing the mobile phone folder in the folder method is one of the most applied in recent years because of various advantages such as easy to use, less trouble, and have a stylish design.

Such a folder-type portable terminal can open and close a mobile phone folder in a vertical direction with respect to the main body through a hinge device. The hinge device comprises a fixed cam, a mobile cam, an elastic member, a hinge shaft, and the like. As a result, the mobile phone folder can be opened or closed at a predetermined angle (approximately 0 to 180).

However, since the hinge of a conventional folding / closing cell phone is manufactured by a die-casting method, there is a limit in reducing the production cost due to an increase in the number of manufacturing processes or parts.

In addition, in the conventional case, since it is impossible to implement a micro hinge (length: 38 mm or less, width: 12.5 mm or less) of the double hinge, there is a limit to extending the size of the display LCD.

An object of the present invention is to provide an opening and closing device for a mobile phone folder, by injection molding a mobile phone folder opening and closing hinge such as a double hinge shaft and a drive gear, so that the risk of damage to external shock can be eliminated.

Another object of the present invention is to implement an ultra-small double hinge having a total length of about 34 to 38 mm and a width of about 11 to 12.5 mm, thereby opening and closing a mobile phone folder that can extend the size of a display (LCD) larger than before. To provide a device.

Still another object of the present invention is to provide an opening / closing device of a cellular phone folder which can significantly reduce the production cost by changing the material and process by manufacturing the hinge instead of the conventional die casting method.

Still another object of the present invention is to provide an opening and closing device of a cellular phone folder which is formed in the form of enclosing the entire hinge part in one case to block the inflow of foreign matters and prevent deformation such as distortion inside the hinge.

The opening and closing device of the mobile phone folder according to the present invention for achieving the above object, in the opening and closing device of the mobile phone folder supporting the mobile phone folder and the mobile phone main body so as to be openable and closed, the first hinge arm is formed on the upper end of the mobile phone body; and; A second hinge arm formed at an upper end of the cellular phone folder; First and second hinge shafts rotatably mounted to each other at a predetermined interval in the transverse direction, the both ends being fixedly disposed at each of the first hinge arm and the second hinge arm; The first and second hinge shafts are inserted into the first and second hinge shafts, respectively, and slide in the longitudinal direction along the first and second hinge shafts by pressing the first and second springs. First and second sliding cams symmetrically formed; Each of the first and second hinge shafts are integrally formed to be axially rotatable, and interlocked with the valleys and hills of the first and second sliding cams, the valleys and hills being symmetrically formed. First and second rotary cams each having a mold portion; The first and second hinge shafts are formed integrally with each other so as to be axially rotatable, the first and second drive gears being rotated to engage and engage with each other so as to open and close the mobile phone folder. It is characterized by.

Here, the first and second hinge shafts, the first and second sliding cams, the first and second rotary cams, and the first and second drive gears are mounted and accommodated therein, wherein the first and second Preferably, a case further includes a top and bottom cases configured to expose only both ends of the first and second hinge shafts for engagement with both ends of the hinge arm.

In addition, a hinge shaft cap may be fastened to the lower case through a screw to cover a central upper portion of the first and second hinge shafts on a central upper side of the first and second hinge shafts formed laterally spaced apart in the case. At the same time, the two first and second hinge axes are preferably supported to be rotatable through their semicircular through portions.

In addition, when the opening and closing device of the mobile phone folder is fully engaged, both ends of the first and second hinge shafts are inserted through and exposed from the case, and at the same time, two shaft guides for fastening and fastening both ends of the case are further provided. This is preferred.

As described above, according to the opening and closing device of the mobile phone folder of the new concept according to the present invention, two hinge shafts which are engaged by the rotating cam and the sliding cam in one small case rotate by mutual engagement of the two drive gears. By opening / closing the mobile phone folder, the mobile phone folder can be opened and closed smoothly by clicking, and the stability is maximized against external impact, and the production cost can be greatly reduced by minimizing the number of processes and parts. It is possible to block the inflow of foreign matter, and there is an effect that can prevent deformation such as distortion inside the hinge.

Hereinafter, in order to be described in detail so that those skilled in the art can easily implement the present invention, the most preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. .

1 is an explanatory view of the opening and closing device of the mobile phone folder according to the present invention, Figure 2 is a combined perspective view of the opening and closing device of the mobile phone folder according to the present invention, Figure 3 is an exploded perspective view of the opening and closing device of the mobile phone folder according to the present invention 4 is a cross-sectional view showing the operating state of the sliding cam and the rotary cam of the mobile phone folder opening and closing device according to the present invention, Figure 5 is a cross-sectional view showing the overall operating state of the mobile phone folder opening and closing device according to the present invention, It will be described together for convenience.

First, the opening and closing device 100 of a cellular phone folder according to the present invention is a portable electronic device such as a PDA (Personal Digital Assistant), a smartphone, a hand held PC, an MP3 / MP4 player, a game console, a laptop, and the like. As described above, all the devices described above that can be applied to the device will be referred to as a mobile phone (not given a drawing number).

In addition, such a mobile phone may be provided with a predetermined communication module such as a code division multiplexing access (CDMA) module, a Bluetooth module, an infrared communication module (IrDA), a wired / wireless LAN card, and may perform a predetermined multimedia playback function such as a game item. It may be provided with a microprocessor.

The cellular phone to which the opening and closing device 100 of the cellular phone folder according to the present invention is applied basically includes a cellular phone main body 1 and a cellular phone folder 2.

Such a mobile phone (not given a drawing number) may be an example of a general mobile phone having a vertical opening and closing method in which the mobile phone folder 2 rotates from 0 ° to 360 ° in the vertical direction with respect to the mobile phone main body 1.

In this case, the mobile phone main body 1 is configured with a keypad 1b, preferably the keypad 5 is formed as a qwerty keypad having a keyboard arrangement capable of inputting alphabets and Korean characters. The mobile phone folder 2 includes a display unit 2b such as a liquid crystal screen, a touch screen, etc., and the display unit 2b is configured to close the mobile phone folder 2 with respect to the mobile phone main body 1 when the mobile phone main body 1 is closed. The keypad portion 1b of FIG.

Here, the first and second hinge arms 1a are respectively provided at the upper ends of the mobile phone main body 1 and the mobile phone folder 2 so that the mobile phone folder 2 can be opened and closed at an angle of approximately 0 to 360 degrees with respect to the mobile phone main body 1. (2a) is fixed to the installation, the first and second hinge arms (1a) (2a) is connected to the opening and closing device 100 of the mobile phone folder according to the present invention.

That is, as shown, the opening and closing device 100 of the mobile phone folder according to the present invention, in the mobile phone folder opening and closing device for supporting the mobile phone folder 2 to open and close relative to the mobile phone body 1, the mobile phone main body A first hinge arm 1a formed at the upper end of (1); A second hinge arm (2a) formed at an upper end of the cellular phone folder (2); First and second hinge shafts 10 and 11 mounted on the first hinge arm 1a and the second hinge arm 2a, respectively rotatably mounted at a predetermined interval in the transverse direction, and fixed at both ends thereof. And; inserted into the first and second hinge shafts 10 and 11, respectively, by pressing the first and second springs 22 and 23, the first and second hinge shafts 10 and 11, respectively. First and second sliding cams 20 and 21 sliding along the lengthwise direction, each of which has a bone-shaped portion and a mountain-shaped portion (not shown); The first and second hinge shafts (10) (11) are formed integrally with each other so as to be axially rotated, and the valleys and the ridges of the first and second sliding cams (20) (21). First and second rotary cams 30 and 31 having a symmetrically formed valley and a ridge (not shown) which interlock with and rotate with (not shown); The first and second hinge shafts 10 and 11 are formed integrally with each other so as to be axially rotated, and interlock with each other so as to be engaged with each other, thereby opening and closing the mobile phone folder 2. The driving gears 50 and 51 are large.

Here, the hinge of the opening and closing device of the mobile phone folder according to the present invention is not a conventional die-casting (die-casting) method, but is manufactured by injection method is a feature of the present invention, in this case, the opening and closing hinge is It can be made into a microminiature of about 34 to 38 mm and a width of about 11 to 12.5 mm.

In addition, the opening and closing device 100 of the mobile phone folder according to the present invention, the compact case (3) for mounting and accommodating the above components therein is installed and accommodated the following components, the first and To expose only both ends 10a, 10b, 11a and 11b of the first and second hinge shafts 10 and 11 for engagement with both ends of the second hinge arms 1a and 2a. .

This case 3 is provided with various elements such as protrusions, ribs, grooves, holes, etc. for substantially supporting the components.

In addition, the case 3 includes an upper case 3a and a lower case 3b which are mutually coupled via a screw 4 or the like.

Both ends of the first hinge shaft 10, that is, one end 10a and the other end 10b are mounted to be pulled out of the case 3 through the through portions 5 formed at both ends of the case 3. The protruding both ends 10a and 10b are coupled to both ends of the first hinge arm 1a of the mobile phone body 1 through the fastening hole 12 and the bolt nut (not shown).

In addition, both ends of the second hinge shaft 11, that is, one end 11a and the other end 11b can also be drawn out of the case 3 through the penetrating portions 5 formed at both ends of the case 3. And both protruding ends 11a and 11b are coupled to both ends of the second hinge arm 2a of the mobile phone cover 2 through the fastening hole 12 and the bolt nut (not shown).

That is, the first and second hinge shafts 10 and 11 are rotatably mounted with respect to the penetrating portion 5 of the case 3 at regular intervals in the transverse direction in the case 3. The first hinge arm 1a of the mobile phone body 1 and the second hinge arm 2a of the mobile phone cover 2, respectively, connected to both ends of the first and second hinge shafts 10, 11, respectively. The first and second hinge shafts 10 and 11 are rotatable together.

In addition, a hinge shaft cap 60 is provided on the upper side of the center of the first and second hinge shafts 10 and 11 spaced apart in the transverse direction in the case 3 through a screw (not shown in the figure). The first and second hinge shafts 10 through the semicircular through-holes 61 of the first and second hinge shafts 10 and 11, respectively, while being fastened to (3b). (11) is supported to be rotatable.

Here, the first and second drive gears 50 and 51 are integrally formed on the first and second hinge shafts 10 and 11 on one side of the hinge shaft cap 60 on the upper side of the center. On the other side, the first and second rotary cams 30 and 31 are integrally formed on the first and second hinge shafts 10 and 11, respectively, so that the first and second hinge shafts 10 and 11 are respectively formed. And rotatable together.

One surface of the first and second rotary cams 30 and 31 integrally formed on the first and second hinge shafts 10 and 11 so as to be axially rotatable is provided with a valley portion and a mountain portion. (Not shown in the drawing) are symmetrically formed in plural, and on one surface of the first and second sliding cams 20 and 21 inserted into the first and second hinge shafts 10 and 11, respectively. Also, a plurality of valleys and a hill portion (not shown in the figure) are formed symmetrically, so that the valleys and the hill portions of the first and second rotary cams 30 and 31 are formed. Opening / closing device of the mobile phone folder according to the present invention by rotating the interlocking portion of the first and second sliding cams 20 and 21 and the valley portion (not illustrated) of the first and second sliding cams 20 and 21. ) Is operated by click.

In addition, the first and second springs 22 and 23 which provide elastic force to the first and second sliding cams 20 and 21, respectively, are flexible tension bars or torsion bars. It is preferable that the spring of any one type of coil type, bar type, plate type, pin type, fluid type, semi-fluid type, magnetic variable fluid type, rubber type.

The first and second drive gears 50 and 51 are integrally formed on the first and second hinge shafts 10 and 11 by inserter injection, respectively.

The first and second drive gears 50 and 51 are integrally formed on the first and second hinge shafts 10 and 11 so as to be rotatable, respectively, and each of the gears is formed on an outer circumference. ) Are rotated in engagement with each other, so that the first and second hinge shafts 10 and 11 can be rotated with each other, so that the mobile phone folder 2 can be opened and closed.

In addition, both ends 10a, 10b, 11a, 11b of the first and second hinge shafts 10, 11 are inserted through when the opening and closing device 100 of the mobile phone folder according to the present invention is fully coupled. Two hinge shaft guides 70 for fastening and fastening both ends of the case 3 at the same time of exposure are provided, so that the first and second hinge shafts 10 and 11 have a first position in terms of position and operability. And the second hinge shafts 10 and 11 are more stably supported.

Here, reference numeral 40 denotes a housing for covering the first and second rotary cams 30 and 31 and the first and second sliding cams 20 and 21, respectively, and 80 is an E-ring.

Although the present invention has been described in detail with reference to preferred embodiments, it is not intended to limit the present invention only to illustrate the present invention, and those skilled in the art can make various changes and modifications without departing from the gist and scope of the present invention. Of course, this is also within the scope of the present invention.

1 is an explanatory diagram of an opening and closing device of a mobile phone folder according to the present invention.

2 is a combined perspective view of the opening and closing device of the mobile phone folder according to the present invention.

3 is an exploded perspective view of the opening and closing device of the mobile phone folder according to the present invention.

4 is a cross-sectional view showing the operating state of the sliding cam and the rotary cam of the opening and closing device of the mobile phone folder according to the present invention.

5 is a cross-sectional view showing an overall operating state of the opening and closing device of the mobile phone folder according to the present invention.

-Explanation of symbols for the main parts of the drawings-

100: opening and closing device of the mobile phone folder according to the present invention

1: mobile phone main body 1a: first hinge arm

1b: keypad part 2: mobile phone folder

2a: 2nd hinge arm 3: case

4: screw 5: through part

10, 11: 1st and 2nd hinge axis 10a, 10b: Both ends of a 1st hinge axis

11a and 11b: both ends of the second hinge shaft 12: fastening hole

20, 21: first and second sliding cams 30, 31: first and second rotating cams

40: housing 50: first and second drive gear

60: hinge shaft cap 61: semi-circular arc through portion

70: hinge shaft guide 80: E-ring

Claims (4)

In the opening and closing device of the mobile phone folder supporting the mobile phone folder and the mobile phone main body so as to be openable and closed, A first hinge arm formed at an upper end of the mobile phone main body, A second hinge arm formed at an upper end of the mobile phone folder; First and second hinge shafts which are rotatably mounted to each other at a predetermined interval in the transverse direction, the both ends of which are fixedly disposed on the first hinge arm and the second hinge arm, respectively; The first and second hinge shafts are inserted into the first and second hinge shafts, respectively, and slide in the longitudinal direction along the first and second hinge shafts by pressing the first and second springs. First and second sliding cams formed symmetrically; Each of the first and second hinge shafts are integrally formed to be axially rotatable, and interlocked with the valleys and hills of the first and second sliding cams, the valleys and hills being symmetrically formed. First and second rotary cams having a mold; The first and second hinge shafts are formed integrally with each other so as to be axially rotatable, the first and second drive gears being rotated to engage and engage with each other so as to open and close the mobile phone folder. Opening and closing device of the mobile phone folder, characterized in that. The method of claim 1, The first and second hinge shafts, the first and second sliding cams, the first and second rotary cams, and the first and second drive gears are mounted and received therein, wherein the first and second hinge arms Opening and closing device of the mobile phone folder further comprises a case consisting of upper and lower cases to expose only the both ends of the first and second hinge shaft for fastening with both ends of the. The method of claim 1, A hinge shaft cap is fastened to the lower case by a screw on a central upper side of the first and second hinge shafts formed laterally spaced apart from the case to cover the upper center portion of the first and second hinge shafts. Opening and closing device of the mobile phone folder, characterized in that for supporting the two first and second hinge shafts rotatably through a semi-circular arc through. The method of claim 2, When fully coupled to the opening and closing device of the mobile phone folder, both ends of the first and second hinge shafts are inserted through and exposed from the case, and at the same time, two hinge shaft guides for fastening and fastening both ends of the case are further provided. Opening and closing device of the mobile phone folder.

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