KR20060033182A - A swivel type of mobile communication terminal with two shafts hinge to control swing angle of lcd part - Google Patents

Abstract

The present invention relates to a swivel type mobile communication terminal, and a swivel type mobile communication terminal having a two-axis hinge for preventing an error signal from being input by pressing the keypad of the main body at the edge of the LCD when swiping the LCD unit. The purpose is to provide.

In order to achieve the above object, the present invention pivots in a direction in which the LCD unit 103 is folded or unfolded with respect to the main body 105 by a hinge having two rotational axes positioned perpendicular to each other, and the LCD unit 103 rotates. In the swivel-type mobile communication terminal, the hinge body 230 and the hinge body 230 which is rotatably positioned and fixed to the main body 105 in a state where the first rotating shaft 210 penetrates in the longitudinal direction, and the middle of the hinge body 230. A first groove 231 formed in the portion and exposing a part of the first rotation shaft 210, a recess 233 formed on both sides of the opening of the first groove 231, and a position in the first groove 231. The second rotary shaft 220 and the first rotary shaft 210 and the second rotary shaft 220 are fixed to the LCD unit 103 and rotatably positioned to penetrate the first rotary shaft 210. Rotating block 240 positioned at 210 and the second rotating shaft 220 is fixed to the second rotating shaft 220 and matched with the recess 233 or Or including the recess 233, the stopper 260, the projections 261 are formed to be separated from it by the technical features that are configured.

As described in detail above, the swivel type mobile communication terminal of the present invention is positioned vertically with respect to the main body and rotated 90 degrees, so that the stopper is caught by the hinge body so that the LCD does not rotate in the vertical direction. Therefore, the LCD unit has a merit that it blocks in advance that an error signal is generated by pressing the keypad.

2-axis hinge, swivel mobile communication terminal, rotary block, hinge block, stopper

Description

A swivel type of mobile communication terminal with two shafts hinge to control swing angle of LCD part}

1A and 1B are schematic diagrams showing an operation relationship of a swivel mobile communication terminal according to the prior art;

FIG. 1C is a schematic diagram illustrating a state in which the LCD unit of the swivel-type mobile communication terminal shown in FIG. 1B rotates to press a keypad.

2A and 2B are schematic views showing a biaxial hinge according to an embodiment of the present invention,

Figure 3 is a perspective view of the hinge body shown in Figures 2a and 2b,

Figure 4 is a detailed view showing the hinge block shown in Figures 2a and 2b,

5 is a perspective view illustrating a first rotational axis and a second rotational axis of the biaxial hinge shown in FIGS. 2A and 2B;

FIG. 6 is a detailed view illustrating the second rotation axis illustrated in FIG. 5;

FIG. 7 is a perspective view illustrating an operation relationship of the biaxial hinge shown in FIGS. 2A and 2B.

Explanation of symbols on the main parts of the drawings

100: mobile communication terminal 103: LCD

105: main body 200: 2-axis hinge

210: first rotating shaft 220: second rotating shaft

230: hinge body 231: home

233: recess 240: rotation block

260: latch 260: stopper

261: convex portion 270: hinge block

The present invention relates to a swivel type mobile communication terminal, and more particularly, to prevent an error signal from being input by pressing the keypad of the main body at the edge of the LCD unit when swiveling the LCD unit.

As various functions are added to the mobile communication terminal, the design of the mobile communication terminal is also changing. The initial model of the mobile communication terminal has changed from a stick type to a flip type and a folder type. Recently, a swivel type mobile communication terminal has been developed.

Such a swivel type mobile communication terminal has a hinge having two rotation shafts coupled to it so that the LCD unit can be folded or unfolded with respect to the main body as in the conventional folding mobile communication terminal, and at the same time, the LCD unit rotates around its longitudinal axis of rotation. Has the ability to do

1A and 1B are schematic views showing an operation relationship of a swivel type mobile communication terminal according to the related art, and FIG. 1C is a state in which the LCD unit of the swivel type mobile communication terminal shown in FIG. Schematic shown.

1A and 1B, the swivel-type mobile communication terminal 10 includes an LCD unit 20 on which an LCD module 21 is mounted and a main body 30 on which a keypad 31 is mounted. The part 20 and the main body 30 are joined by a hinge 40 having two rotary shafts 41R and 41S.

Accordingly, the LCD unit 20 pivots about the hinge 40 to be unfolded or folded about the main body 30, and is rotatable about the rotary shaft 41S in the longitudinal direction of the LCD unit 20 together with the pivoting movement. . As shown in FIG. 1B through the function of the hinge 40 as described above, the LCD unit 20 is positioned vertically with respect to the main body 30, and the LCD unit 20 is rotated by 90 degrees. Can be. In this state, the user takes a picture while viewing the screen of the LCD unit 20 using a camera mounted on the side of the main body 30.

As shown in FIG. 1B, the LCD unit 20 is vertically positioned with respect to the main body 30 and rotated 90 degrees. Hereinafter, the LCD unit 20 is referred to as a "vertical state" for convenience.

However, since the LCD unit 20 is pivotable in the unfolded or folded direction in a vertical state, as shown in FIG. 1C, the LCD unit 20 pivots downward so that the corners of the LCD unit 20 are formed in the main body 30. The upper button, that is, the key button 33 of the keypad 31 is pressed.

As such, when the LCD unit 20 rotates and inputs an error signal, the mobile communication terminal 10 operates according to the input key signal, which is inconvenient for the user to cancel the input signal.

Looking at the structure of the general keypad 31, the navigation key 33N and various function keys 33F are located at the upper end of the keypad near the hinge 40 side. In the structure of the keypad 31 as described above, an error signal that can be input through the turning of the LCD unit 20 is generated in the navigation key 33N and the function key 33F.

The present invention is invented to solve the problems of the prior art as described above, in order to block the occurrence of an error signal by pressing the keypad of the main body by turning the LCD unit downward when the LCD unit and the main body is located in a vertical state. An object of the present invention is to provide a swivel type mobile communication terminal having a two-axis hinge that is configured so that the LCD does not turn downward in the vertical state.

In order to achieve the above object, the present invention provides a swiveling mobile communication terminal in which the LCD unit pivots in a direction in which the LCD unit is folded or unfolded with respect to the main body by a hinge having two rotational shafts located perpendicular to each other. A hinge body fixed to the main body and rotatably positioned in a state in which the rotating shaft penetrates in the longitudinal direction, and a first groove formed at an intermediate portion of the hinge body to expose a portion of the first rotating shaft, A recess formed on both sides of the opening of the first groove, a second rotation shaft positioned in the first groove and rotatably penetrating the first rotation shaft, and fixed to the LCD unit, the first rotation shaft and the second rotation shaft; A rotating block penetrating the rotating shaft and positioned in the first groove, and fixed to the second rotating shaft to rotate together with the second rotating shaft to be aligned with the concave portion; or And the convex portion is separated from the neck portion is configured to include a stopper formed as a technical feature.

In addition, a latch is fixed to an end of the second rotating shaft penetrating the rotating block of the present invention, the latch is formed at the edge of the second groove as much as 90 degrees arc, the rotating block inside the second groove The contacting protrusion is formed so that the second rotation axis is rotatable only by 90 degrees.

In addition, a hinge block in which the first rotating shaft penetrates along a center line is positioned at one inner surface of two opposing inner surfaces of the first groove of the present invention and fastened to a side of the rotating block.

In addition, the hinge block of the present invention includes a first block and a second block each having a cam curved surface formed in contact with each other, and an elastic body for pressing the second block toward the first block, the first block is It is fastened to the rotary block, the first rotating shaft passes through the elastic body and the first, second blocks.

In addition, a hole is formed on one inner surface of two opposite inner surfaces of the first groove of the present invention, a ball is positioned at an opening of the hole, and a coil spring for pushing the ball is located inside the hole. A slot is formed in a side of the rotary block with a circular arc of 160 degrees along the circumference of the through hole through which the first rotation shaft passes, and the slot is formed with a plurality of hemispherical grooves to match or separate with the ball moving along the slot. do.

In addition, three hemispherical grooves are formed in the slot of the present invention, and three hemispherical grooves are formed at points of 0 degrees, 90 degrees, and 160 degrees along the slots, respectively.

In addition, ring-shaped grooves are formed on both surfaces of the rotary block through which the second rotary shaft of the present invention penetrates, and a washer spring is positioned in each of the grooves to apply an elastic force to the outside of the rotary block.

Hereinafter, with reference to the accompanying drawings a preferred embodiment of a swivel-type mobile communication terminal having a two-axis hinge capable of controlling the turning angle of the LCD unit according to the present invention will be described in detail.

2A and 2B are schematic views showing a biaxial hinge according to an embodiment of the present invention, FIG. 3 is a perspective view of the hinge body shown in FIGS. 2A and 2B, and FIG. 4 is a view of FIGS. 2A and 2B. FIG. 5 is a detailed view of the hinge block shown in FIG. 2B, FIG. 5 is a perspective view illustrating a first axis and a second axis of rotation of the biaxial hinge illustrated in FIGS. 2A and 2B, and FIG. 6 is a second axis of rotation shown in FIG. 5. 7 is a perspective view illustrating an operation relationship of the biaxial hinge shown in FIGS. 2A and 2B.

As shown in Figure 2a and 2b, the swivel-type mobile communication terminal 100 is coupled to the LCD unit 103 and the main body 105 by a two-axis hinge (200). The biaxial hinge 200 includes a first rotating shaft 210 in which the LCD unit 103 pivots up and down with respect to the main body 105, and rotates while being positioned perpendicular to the first rotating shaft 210. It includes a second rotary shaft 220 for connecting the rotary shaft 210 and the LCD unit 103.

More specifically, as shown in FIGS. 2A and 3, the hinge body 230 of the biaxial hinge 200 fastened to the main body 105 has a groove 231 formed at an intermediate portion thereof, and the hinge body ( The first rotation shaft 210 is inserted and positioned in the longitudinal direction of 230. As such, an intermediate portion of the first rotation shaft 210 penetrating in the longitudinal direction of the hinge body 230 is partially exposed from the groove 231, and the second rotation shaft 220 is disposed on the first rotation shaft 210 in the groove 231. Located in the state penetrating).

In such a configuration, in the state in which the LCD unit 103 is perpendicular to the main body 105, the concave portion 233 has a predetermined curvature radius on both sides of the opening portion of the groove 231 corresponding to the second rotation shaft 220. ) Is formed. The function of the concave portion 233 will be described in detail after the overall description of the biaxial hinge.

On the other hand, as shown in Figure 4, the rotation block 240 is located in the groove 231 of the hinge body 230, the first rotating shaft 210 through the through hole 241 formed in the rotary block 240 In the state, the rotation block 240 is positioned in the groove 231 to be freely rotatable about the first rotation shaft 210.

In this state, the second rotary shaft 220 penetrates from the upper surface of the rotary block 240 to the lower surface of the rotary block 240 and protrudes from the lower surface of the rotary block 240. The latch 250 is fixed to the end. The latch 250 may rotate only by 90 degrees due to interference with the protrusion 243 protruding from the lower surface of the rotation block 240. Specifically, as shown in FIG. 4, 90 degrees of arcs 251 are formed at the edges of the latch 250, and protrusions 243 of the rotation block 240 are positioned inside the grooves 251. Therefore, when the latch 250 rotates, the protrusion 243 interferes with both ends of the groove 251 to prevent rotation of the latch 250. By the latch 250 and the protrusion 243 configured as described above, the second rotation shaft 220 eventually rotates only by an angle of 90 degrees formed by the groove 251 of the latch 250.

On the other hand, the stopper 260 for preventing the turning of the LCD unit 103 is fixed to the second rotating shaft 220 is located on the upper surface of the rotating block 240. The structure of the stopper 260 is configured such that both sides of the rectangular flat structure are convex with a radius of curvature equal to the radius of curvature of the recess 233. The stopper 260 is positioned in the groove 231 of the hinge body 230 to correspond to the recess 233 in a state of being fixed to the second rotation shaft 220.

In addition, as shown in Figure 4, in the rotary block 240, a through hole through which the first rotating shaft 210 passes through any one of two sides facing the inner surface of the groove 231 of the hinge body 230 Along the circumference of 241 a slot 245 is formed with an arc of 160 degrees. Three hemispherical grooves 247 are formed in the slot 245, and are formed at points of 0 degrees, 90 degrees, and 160 degrees, respectively.

The hole 235 is formed in the inner surface of the groove 231 corresponding to the slot 245 formed as described above, the coil spring 239 is positioned in the hole 235, and the ball ( 237 is located. The ball 237 protrudes to the opening of the hole 235 by the elastic force of the coil spring 239 and is located in a state where a part of the ball 237 is inserted into the slot 245 formed on the side of the rotation block 240. Therefore, when the second rotating shaft 220 is rotated, the rotating block 240 is rotated, the ball 237 is relatively moved along the slot 245 while the second rotating shaft 220 is 0 degrees, 90 degrees, When turning by 180 degrees, the hemispherical grooves 247 are respectively matched. As such, when the ball 237 is matched to the hemispherical groove 247, the rotation of the rotation block 240 is stopped, and when a force greater than the elastic force of the coil spring 239 acts on the second rotation shaft 220, the ball 237. The rotating block 240 rotates while leaving the hemispherical groove 247. That is, while the ball 237 is separated from the hemispherical groove 247, the coil spring 239 that applies the elastic force to the ball 237 is contracted so that the ball 237 is separated from the hemispherical groove 247.

In addition, as shown in Figure 5, in the rotating block 240, the hinge block 270 is fastened to the side opposite to the side on which the slot 245 is formed. The hinge block 270 is positioned to penetrate the first rotation shaft 210 along a center line thereof, and is divided into a left block 271 and a right block 273, and a left block 271 and a right block 273 are in contact with each other. The surfaces are located in contact with each other with cam cam surfaces formed. A coil spring 275 is positioned behind the right block 273 to press the right block 273 toward the left block 271. In this state, when the first rotation shaft 210 rotates, the left block 271 coupled to the rotation block 240 rotates, and the right block 273 is right along the first rotation shaft 210 along the cam curved surface. To reverse.

When the cam curved surface of the left block 271 and the cam curved surface of the right block 273 are located correspondingly, the cams of the left block 271 and the right block 273 are advanced by the elastic force of the coil spring 275. The surfaces match. Here, the cam curved surface is formed in the shape of a sin curve with respect to 160 degrees, which is an angle between the LCD unit 103 in an unfolded state and a folded state with respect to the main body 105.

On the other hand, a ring-shaped groove 249 is formed on each of the upper and lower surfaces of the rotary block 240 and one surface of the stopper and the latch corresponding thereto, and the ring-shaped groove (with the washer spring wrapped around the second rotating shaft 220). 249). As the washer spring is located in the ring-shaped groove 249, the elastic force of the washer spring acts to push the rotation block 240 and the latch 250 and the rotation block 240 and the stopper 260 mutually. The second rotation shaft 220 is prevented from rotating freely by the weight of the LCD unit 103.

The following describes the operation relationship of the mobile communication terminal according to such a two-axis hinge.

FIG. 6 (a) shows the hinge of the LCD part of the mobile communication terminal folded in the main body, and FIG. 6 (b) shows the LCD part unfolded 90 degrees perpendicular to the main body, and FIG. 6 (c) In the state of FIG. 6B, the LCD unit is rotated 90 degrees in a vertical state.

When the LCD unit 103 is extended 90 degrees from the state (a) of FIG. 6 to the state (b) of FIG. 6, the first rotation shaft 210 is the hinge body 230 while the second rotation shaft 220 is rotated 90 degrees. ) Rotates by 90 degrees, so that the rotary block 240 also rotates 90 degrees along the second axis of rotation (220). As the rotary block 240 rotates 90 degrees, the ball 237 is matched to the hemispherical groove located at 90 degrees among the three hemispherical grooves 247. As the ball 237 fits into the hemispherical groove 247, the second axis of rotation 220 is positioned as shown in FIG. 6B.

In this case, the stopper 260 is positioned to correspond to the upper end of the groove 231 formed in the hinge body 230, that is, the recess 233, and the horizontal side of the stopper 260 is positioned to correspond to the recess 233. . In this state, as shown in FIG. 6C, when the LCD unit 103 is rotated 90 degrees, the stopper 260 also rotates 90 degrees while the second rotation shaft 220 is rotated 90 degrees along the LCD unit 103. As the stopper 260 rotates 90 degrees in this manner, the convex portion 261 of the stopper 260 enters into the recess 233 of the groove 231.

In the state where the convex portion 261 of the stopper 260 and the concave portion 233 of the groove 231 are matched, the second rotation shaft 220 can rotate only 90 degrees in reverse rotation and does not rotate in the vertical direction. I can't.

Therefore, since the LCD unit 103 does not rotate in the vertical direction in the state where the LCD unit 103 is rotated 90 degrees while being perpendicular to the main body 105, the corners of the LCD unit 103 are formed in the main body 105. Will not touch the keypad.

In this state, in order to position the LCD unit 103 in an unfolded or folded state with respect to the main body 105, the LCD unit 103 is inverted 90 degrees in the state of FIG. 6C to FIG. 6B. The convex portion 261 of the stopper 260 is separated from the concave portion 233 of the groove 231 by rotation. When the LCD unit 103 is pivoted in the vertical direction, the second rotation shaft 220 is unfolded or folded while pivoting about the first rotation shaft 210.

Meanwhile, a hollow (221 in FIG. 2B) is formed in the second rotation shaft 220 to form a passage through which the FPCB connecting the main body 105 and the LCD unit 103 passes.

As described in detail above, the swivel-type mobile communication terminal having the two-axis hinge of the present invention has the LCD unit positioned vertically with respect to the main body and rotated 90 degrees. You will not turn. Therefore, the LCD unit has a merit that it blocks in advance that an error signal is generated by pressing the keypad.

In addition, the swivel-type mobile communication terminal having a two-axis hinge of the present invention, the first rotary shaft and the second rotary shaft is assembled as one in the hinge, the hinge block is also configured as one assembly component of the hinge, the configuration is simple There is an advantage in improving workability during assembly.

Although the technical idea of the swivel mobile communication terminal having a two-axis hinge of the present invention has been described above with the accompanying drawings, this is for illustrative purposes only and not for limiting the present invention.

Claims (7)

In a swivel type mobile communication terminal in which the LCD unit pivots in a direction in which the LCD unit is folded or unfolded with respect to the main body by a hinge having two rotation shafts positioned perpendicular to each other, A hinge body fixed to the main body and rotatably positioned in a state where the first rotating shaft penetrates in the longitudinal direction; A first groove formed at an intermediate portion of the hinge body and exposing a part of the first rotation shaft; Recesses formed on both sides of the opening of the first groove; A second rotation shaft positioned in the first groove and rotatably penetrating through the first rotation shaft and fixed to the LCD unit; A rotating block penetrating the first rotating shaft and the second rotating shaft and positioned in the first groove; And a stopper having a convex portion which is fixed to the second rotation shaft and rotates together with the second rotation shaft and is aligned with or is separated from the recess. The method of claim 1, A latch is fixed to an end portion of the second rotating shaft penetrating the rotating block. The latch has a second groove having an arc of 90 degrees at an edge thereof, and a protrusion formed in the rotating block in contact with the second groove. Swivel mobile communication terminal having a two-axis hinge, characterized in that the second rotation axis is configured to rotate only 90 degrees. The method according to claim 1 or 2, A swivel having a two-axis hinge, characterized in that the hinge block through which the first rotating shaft penetrates along a center line is positioned on one inner surface of two opposing inner surfaces of the first groove and fastened to a side of the rotating block. Type mobile communication terminal. The method of claim 3, The hinge block, A first block and a second block each having a cam curved surface formed on a surface in contact with each other, and an elastic body for pressing the second block toward the first block, The first block is fastened to the rotary block, the first rotating shaft is a swivel-type mobile communication terminal having a two-axis hinge, characterized in that penetrating through the elastic body and the first, second block. The method according to claim 1 or 2, Holes are formed in one inner surface of two opposing inner surfaces of the first groove, a ball is located in the opening of the hole, and a coil spring for pushing the ball is located in the hole. A slot is formed in a side of the rotary block with a circular arc of 160 degrees along the circumference of the through hole through which the first rotation shaft passes, and the slot is formed with a plurality of hemispherical grooves to match or separate with the ball moving along the slot. Swivel type mobile communication terminal having a two-axis hinge, characterized in that. The method of claim 5, And three hemispherical grooves are formed in the slots, and the three hemispherical grooves are formed at points of 0 degrees, 90 degrees, and 160 degrees along the slots, respectively. The method according to claim 1 or 2, Ring-shaped grooves are formed on both sides of the rotary block through which the second rotary shaft penetrates, and each of the grooves has a washer spring positioned to apply elastic force to the outside of the rotary block. Type mobile communication terminal.

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