KR20050039419A - A folder type of mobile communication terminal with paralleled two hinge - Google Patents

Abstract

According to the present invention, two parallel hinges, each of which is hinged to a folder unit and a main body, are hinged to each other so that the hinge angle of each hinge is reduced, so that two parallel hinges can be manufactured. Its purpose is to provide a clamshell mobile communication terminal having a.

In order to achieve the above object, the present invention provides a folder-type mobile communication terminal in which a folder unit 110 equipped with an LCD and a main body 120 equipped with a keypad are hinged to be unfolded or folded. Hinge 140 is formed on both sides, and the hinge 140 of one side is coupled to the folder unit 110, and the main body 120 includes a hinge portion 130 is coupled to the hinge 140 of the other side It is characterized by what is configured.

The folding mobile communication terminal having the two parallel hinges of the present invention configured as described above has a width equal to the width of the hinge portion between the folder portion and the main body, and the turning angle of the folder portion and the main body is small, and the elliptical shape or the egg shape is provided. A mobile communication terminal having a folder portion and a main body can be implemented.

Description

A Folder Type of Mobile Communication Terminal with Paralleled Two Hinge}

The present invention relates to a clamshell mobile communication terminal, and in particular, by combining two hinge shafts located in parallel to each of the folder portion and the main body to reduce the turning angles of the folder portion and the body, to realize the folder portion and the body of various shapes It is to provide a folding mobile communication terminal having two parallel hinges.

1 is a schematic diagram of a state in which a folder part and a main body of a clamshell mobile communication terminal according to the related art are disassembled.

As shown in FIG. 1, the folder type mobile communication terminal 1 includes a folder portion 10 on which an LCD is mounted, and a main body 20 on which a keypad 21 is mounted. The main body 20 is coupled to each other by the hinge 30 is configured so that the folder portion 10 can be folded or unfolded relative to the main body 20.

Looking at the hinge coupling relationship between the folder portion 10 and the main body 20 of the mobile communication terminal 1 in detail, hinge holders 35L and 35R are formed at both upper ends of the main body 20, respectively, and two hinge holders. The hinge case 31 formed in the folder part 10 is inserted and positioned between 35L and 35R. An elliptical groove 32 is formed at one end of the hinge case 31, and a circular groove 33 is formed at the other end thereof, and an elliptical groove 32 of the hinge case 31 has both ends rotated relative to each other and has a flexible hinge axis. 39 is inserted and positioned, the hinge shaft 39 is inserted into the groove 36 formed in one hinge holder 35R while the hinge shaft 39 is inserted into the elliptical groove 32 of the hinge case 31 and the other. The protrusion 37 formed in the hinge holder 35L is inserted into and positioned in the circular groove 33 of the hinge case 31.

On the other hand, the FPCB 40 extending from the LCD module 13 of the folder unit 10 is extended to the PCB accommodated in the body 20, the FPCB 40 to connect the LCD module 13 and the PCB It passes through the through hole 34 of the hinge case 31 and the through hole 38 of the hinge holder 35L. As shown in FIG. 1, a first through hole 34 is formed in the hinge case 31, a second through hole 38 is formed in the protrusion 37 of the hinge holder 35L, and the FPCB 40 is formed in the hinge case 31. The first and second through holes 34 and 38 connect the LCD module 13 and the PCB.

Here, the reason why the FPCB 40 is connected through the second through hole 38 of the protrusion 37 is that the turning angle of the folder part is large. As in the conventional clamshell mobile communication terminal, when the folder portion and the main body are connected by one straight hinge, the turning angle of the folder portion reaches about 150 °.

As the folder portion turns at such a large turning angle, when the FPCB extends directly to the main body through the hinge case, the FPCB is exposed to the outside by the turning portion of the folder, and the FPCB is damaged by the exposure of the FPCB and the water along the FPCB. This will flow into the main body and folder and cause a malfunction.

Therefore, the conventional mobile communication terminal connects the LCD module and the PCB through the hinge holder in order to prevent the FPCB from being exposed to the outside.

As such, the path of the FPCB is complicated to penetrate through the narrow second through hole of the hinge holder, which makes it difficult to manufacture and assemble the case of the mobile communication terminal.

In addition, in recent years, the production technology of the mobile communication terminal has been developed to perform various functions such as financial transactions, TV viewing, video information service (VOD), photography, etc. in addition to the function of transmitting and receiving voice and video messages. . As the various functions are added as described above, the FPCB becomes thicker, and there is a problem that the thickness of the FPCB is restricted depending on the size of the first and second through holes.

In addition, in the conventional mobile communication terminal, as the folder unit and the main body are connected by one straight hinge, as shown in FIG. 1, the lower end and the upper end of the main body connected to the hinge are formed in a straight line. When connecting the folder portion and the main body having an oval or egg shape by the hinge as described above, there is a disadvantage that the folder portion is expanded and interferes with the main body so that it is not spread out at a wide angle.

The present invention has been proposed in order to solve the problems of the prior art as described above, the hinge is coupled to the folder portion and the main body respectively to reduce the angle of rotation made by each hinge according to the turning of the folder portion FPCB straight through the hinge folder It has a structure connecting the main body and the main body, and also by making the hinge angle of each hinge small, providing a folding mobile communication terminal having two parallel hinges that do not interfere with the main body even if the folder of various shapes unfolds with respect to the main body. Its purpose is to.

In order to achieve the above object, the present invention provides a folder-type mobile communication terminal in which a folder on which an LCD is mounted and a main body equipped with a keypad are hinged to be unfolded or folded, and two hinges parallel to each other are provided on both sides. Is formed and the hinge of one side is coupled to the folder portion and the main body is characterized in that it comprises a hinge portion coupled to the hinge of the other side.

In addition, the hinge portion of the present invention is formed through holes corresponding to the folder portion and the main body, respectively, FPCB connecting the folder portion and the main body is located through the through holes.

In addition, the hinge of the present invention includes each hinge axis inserted into two grooves formed on one side of the hinge portion, and two protruding rods having the same center line as the center line of the hinge shaft on the other side of the hinge portion, The hinge shaft and the protruding rod are rotatably inserted into the grooves of the hinge holders formed in pairs in the folder portion and the main body, respectively.

In addition, the hinge shaft of the present invention is fixed to the housing, a movable cam which is located in the opening of the housing and formed with valleys and mountains at intervals of 90 °, and is inserted into and fixed to the groove formed in the hinge holder in accordance with the movable cam. A cam, a coil spring positioned inside the housing to push the movable cam, and a rotating shaft positioned through the housing, the coil spring, the movable cam, and the fixed cam.

In the following, with reference to the accompanying drawings, a preferred embodiment of a folding mobile communication terminal having two parallel hinges according to the present invention will be described in detail.

2A is a perspective view of a folded state of a folding mobile communication terminal having two parallel hinges according to one embodiment of the present invention, and FIG. 2B is a perspective view of an unfolded state of the mobile communication terminal shown in FIG. 2A. 3 is an exploded perspective view of the folder and the main body of the mobile communication terminal shown in FIG. 2B, and FIG. 4 is a cross-sectional view of the hinge shaft shown in FIG.

2A and 2B, two hinge holders 111L and 111R are formed at the lower end of the folder part 110, and two hinge holders 121L and 121R are also formed at the upper end of the main body 120. do. And both ends of the hinge portion 130 is inserted into these two pairs of hinge holders (111L, 111R; 121L, 121R) and hinged, respectively, the folder portion 110 and the main body (centering both ends of the hinge 130) ( 120 turns independently.

Hereinafter, the hinge unit configured as described above will be described in detail with reference to FIG. 3.

As shown in FIG. 3, the hinge portion 130 has two elliptical grooves 132 formed on the right side and two protruding rods 133 formed on the center line of the elliptical groove 132 on the left side thereof. 131 and hinge shafts 140 respectively inserted into elliptical grooves 132 of the hinge body 131.

The second through-holes through which the FPCB 150 passes through the upper and lower ends of the hinge body 131 are extended to the first through-hole 135 and the body 120 into which the FPCB 150 extending from the folder unit 110 is inserted. Balls 136 of FIGS. 5A and 5B are formed.

Meanwhile, as illustrated in FIG. 4, the hinge shaft 140 inserted into the hinge body 131 includes an elliptical housing 141, a movable cam 142 located at an opening of the housing 141, and a movable cam. The fixed cam 143 is inserted into and fixed to the grooves 112 and 122 formed in the hinge holders 111R and 121R, and the movable cam 142 is pushed out in the housing 141. The coil spring 144 includes a housing 141, a coil spring 144, a movable cam 142, and a rotating shaft 145 positioned through the fixed cam 143. Here, a valley and a mountain are formed at the contact surface of the movable cam 142 and the fixed cam 143 at intervals of 90 °, and the folder portion 110 and the main body 120 to which the fixed cam 143 is fixed are hinged 130. The fixed cam 143 and the movable cam 142 mate while turning about 75 ° with respect to. In addition, the hinge shaft 140 inserted into the elliptical groove 132 has the same center line as the protruding rod 133.

Hereinafter, the assembly relationship of the folding mobile communication terminal having two parallel hinges configured as described above will be described.

After inserting the hinge shafts 140 into the elliptical grooves 132 of the hinge body 131, the FPCB 150 extending from the LCD module 118 of the folder unit 110 and the first through hole 135, respectively. Passes through the second through hole 136.

Then, in a state in which the fixing cam 143 of the hinge shaft 140 is pushed toward the housing 141, the hinge body 131 is disposed between the two hinge holders 111L and 111R of the folder unit 110 and the body 120. Slide between two hinge holders (121L, 121R). Then, when the force applied to the fixing cam 143 is removed, the fixing cam 143 is formed in one of the hinge holders 111R and 121R by the extension of the coil spring 144 of the hinge shaft 140. ), The protruding rod 133 of the hinge body 131 is inserted into the grooves 112 and 122 of the other hinge holder (111L, 121L) is rotatably fixed.

In this state, the FPCB 150 penetrating through the hinge body 131 is fixed to the PCB 128 of the body 120.

In the folding mobile communication terminal having two parallel hinges assembled as described above, FIG. 5A is a cross-sectional view showing a hinge in a folded state, and FIG. 5B is a cross-sectional view showing a hinge in an unfolded state.

As shown in FIGS. 5A and 5B, the turning angle of each hinge axis in the folded and unfolded states of the folder unit 110 and the main body 120 is about 75 °. As such, as the folder unit 110 and the main body 120 rotate at an angle of about half with respect to 150 °, which is the rotation angle of the conventional folder unit 10, the first through hole 135 even if the folder unit 110 turns. ) Does not deviate, and the body 120 also pivots so as not to deviate from the second through hole 136. Therefore, even if the main body 120 and the folder unit 110 are expanded or folded, the FPCB 150 is not exposed to the outside.

In addition, as the folder portion 110 and the main body 120 rotate at an angle of 75 ° in a state where a width equal to the width of the hinge body 131 is formed, interference between the folder portion 110 and the main body 120 occurs. I never do that. Thus, as shown in Figures 2a and 2b, even the oval or egg-shaped folder and the main body can be configured to be expanded or folded.

As described in detail above, in the folding mobile communication terminal having two parallel hinges of the present invention, the FPCB is not exposed while the first through hole and the second through hole formed in the hinge body are accommodated by the folder part and the main body. In addition to preventing damage to the FPCB, water can be prevented from flowing along the FPCB.

In addition, in the folding mobile communication terminal having two parallel hinges of the present invention, since the FPCB extended from the folder part is directly connected to the PCB of the main body through the hinge body, the thickness of the FPCB according to passing through the hinge holder as in the prior art. There is an advantage that less restrictions, because the FPCB is connected through the first through hole and the second through hole facing the hinge body has the advantage that the case manufacturing and assembly of the mobile communication terminal is convenient.

In addition, the folding mobile communication terminal having two parallel hinges of the present invention has a margin of the hinge body between the folder portion and the main body, and the turning angle of the folder portion and the main body is small, and is elliptical or egg-shaped. It is possible to implement the shape of the mobile communication terminal on the.

Although the technical idea of the folding mobile communication terminal having two parallel hinges of the present invention has been described together with the accompanying drawings, it is intended to exemplify the best embodiments of the present invention. no.

1 is a schematic diagram of a state in which a folder part and a main body of a clamshell mobile communication terminal according to the related art are disassembled;

2A is a perspective view showing a folded state of a folding mobile communication terminal having two parallel hinges according to an embodiment of the present invention;

FIG. 2B is a perspective view illustrating an unfolded state of the mobile communication terminal illustrated in FIG. 2A;

3 is an exploded perspective view of the folder unit and the main body of the mobile communication terminal shown in FIG.

4 is a longitudinal cross-sectional view of the hinge axis shown in FIG. 3,

5A is a cross-sectional view illustrating a hinge portion of the mobile communication terminal illustrated in FIG. 2A.

FIG. 5B is a cross-sectional view illustrating the hinge portion of the mobile communication terminal shown in FIG. 2B.

   Explanation of symbols on the main parts of the drawings

1: Mobile communication terminal 10, 110: Folder part

20, 120: main body 130: hinge portion

150: FPCB 111L, 111R, 121L, 121R: hinge holder

131: hinge body 135, 136: through hole

140: hinge axis 142, 143: cam

Claims (4)

In a folder type mobile communication terminal in which a folder equipped with an LCD and a main body equipped with a keypad are hinged and unfolded or folded, Two hinges parallel to each other are formed on both sides, one side of the hinge portion is coupled to the folder portion, the main body includes two hinges characterized in that the hinge includes a hinge portion coupled to the other side terminal. The method of claim 1, The hinge portion has a through hole corresponding to the folder portion and the main body, respectively, and a FPCB connecting the folder portion and the main body is located through the through holes. Communication terminal. The method according to claim 1 or 2, The hinge includes a hinge shaft respectively inserted into two grooves formed on one side of the hinge portion, and two protruding rods having the same center line as the center line of the hinge shaft on the other side of the hinge portion, And the hinge shaft and the protruding rod are rotatably inserted into the grooves of the hinge holders formed in the folder portion and the main body, respectively. The method of claim 3, The hinge shaft may include a housing, a movable cam positioned at an opening of the housing and having a valley and a mountain formed at intervals of 90 °, a fixed cam inserted into a groove formed in the hinge holder and fixed to the movable cam, and the housing. A coil spring having two hinges, the coil spring being positioned inside the cylinder and pushing the movable cam, and a rotating shaft positioned through the housing, the coil spring, the movable cam and the fixed cam. Mobile terminal.