KR100642125B1 - Rotation mechanism of cellular terminal - Google Patents

Abstract

Disclosed is a rotating device for a communication terminal for rotating a liquid crystal display provided in a vertical direction to be elongated in a horizontal direction. Such a rotating device includes a rotating part fixed to the second body, a fixing part fixed to the first body and coupled to the rotating part so that the second body is rotated from the first body in a direction in which the contact surfaces are crossed with each other, and the rotating part is fixed by the fixing part. It is prevented and coupled to the recess formed in the rotating portion in one or more phases to apply a predetermined braking force to the rotation of the second body to generate a clutch member for generating a predetermined braking force, and generates an elastic force for pressing the clutch member toward the rotating part side. It has an elastic member to make. The rotating device for a communication terminal can rotate a display to lengthen the LCD screen in a horizontal direction, thereby displaying a movie of a normal size or the like using the entire LCD screen.

Terminal, LCD Screen, Rotation

Description

ROTATION MECHANISM OF CELLULAR TERMINAL}

1 is a perspective view of a general communication terminal,

2 is an exploded perspective view of a communication terminal which is an embodiment of the present invention;

3 is an exploded perspective view of the rotating apparatus shown in FIG. 2;

4 is another perspective view of FIG.

5 and 6 is a cross-sectional view of the coupling state of the rotary device shown in FIG.

7 and 8 are cross-sectional view of the use state of the rotating device shown in FIG.

9 is a perspective view of the coupling state of the communication terminal shown in FIG.

10 and 11 are perspective views of the use state of the communication terminal shown in FIG.

<Explanation of symbols for main parts of drawing>

100: first body 110: second body

112: liquid crystal display 200: rotating part

202: third locking projection 210: the rotating shaft portion

212: annular groove 214: through hole

216: hemispherical groove 220: fixed part

222: rotation ball 224: insertion hole

226: rotation limit protrusion 228: protrusion

230: braking ring 232: first locking projection

234: second locking projection 240: ball

250: seed spring 252: opening

260: seeding 262: washer

270: screw

The present invention relates to a rotating device for a communication terminal, and more particularly, to rotate a liquid crystal screen so as to lengthen the liquid crystal screen installed in the vertical direction in the communication terminal in the horizontal direction.

1 illustrates a communication terminal such as a general mobile phone.

The communication terminal shown in this figure allows the cover 20 provided with the liquid crystal display 22 to be opened and closed from the main body 10 via the hinge device 30. The hinge device 30 only serves to guide the cover 20 from the closed position to the open position from the main body 10.

On the other hand, various characters and image information are displayed on the liquid crystal display 22, and recently, a movie can be viewed through the liquid crystal display 22 due to an increase in memory and an improvement in communication service.

On the other hand, in the general communication terminal, the liquid crystal display 22 is generally installed long in the vertical direction. However, in movies, the normal screen is long in the horizontal direction. Therefore, in order to watch a movie normally, a long LCD screen in the horizontal direction is required.

In the case of displaying a movie on the LCD screen 22 of a general communication terminal that does not meet these requirements, there is a problem in that a portion of the LCD screen 22 that is vertically long cannot be used to display a small size image.

In addition, in the case of using the entirety of the LCD screen 22 that is long in the vertical direction, it is necessary to narrow the horizontal direction and increase the vertical direction of the displayed screen, thereby causing an abnormal screen to be screened.

The present invention has been made to solve the above problems, and an object of the present invention is to rotate the liquid crystal screen installed in the vertical direction in the communication terminal to be elongated in the horizontal direction, the normal image using the entire LCD screen It is to be able to display.

The present invention for achieving the above object, a rotating part fixed to the second body; A fixing part fixed to a first body and coupled to the rotating part such that the second body is rotated in a direction in which contact surfaces are alternated from the first body; A clutch member prevented from being rotated by the fixing unit and coupled to a recess formed in the rotating unit at one or more phases to apply a predetermined braking force to the rotation of the second body to generate a predetermined braking force; And it provides a rotary device for a communication terminal comprising an elastic member for generating an elastic force for pressing the clutch member toward the rotating portion.

A rotating shaft portion is formed in the center region of the rotating portion, and a rotating hole in which the rotating shaft portion is rotatably inserted is formed in the central region of the fixed portion, and the locking shaft portion passing through the rotating hole is fastened to prevent separation of the rotating shaft portion. The member is joined.

A through hole for passing a signal line connected to the second body from the first body is formed in the central region of the rotating shaft portion.

The fixing portion is formed with an insertion hole for allowing the clutch member to flow to the elastic member side and the rotating portion side, and accommodates the clutch member to move the clutch member together when the fixing portion rotates.

The clutch member is made of a ball, and the recess is made of a hemispherical groove to which the ball is partially coupled.

The recess is formed at a position where the second body is closed on the first body and the second body is coupled to the clutch member in a state where the second body is rotated 90 degrees or 180 degrees from the first body.

The elastic member is formed of a seed spring for elastically pressing the clutch member and the inner surface to the recessed side.

The fixing part is provided with a protrusion protruding toward the elastic member, the opening of the elastic member is caught by the protrusion and rotates together with the fixing part.

The rotating device for the communication terminal is provided with braking means for preventing the rotating part from excessively rotating in a specific direction.

As another example, the rotating device for the communication terminal may be installed such that the rotating part is rotated in both directions from the fixing part, and a braking means is installed to prevent the rotating part from being rotated any further while being rotated at a predetermined angle in both directions. do.

The braking means may include: a braking ring rotatably installed between the rotating part and the fixing part, a first catching protrusion formed on the rotating part side, and a second catching protrusion formed on the fixing part side; A third catching protrusion formed on the rotating part and braking in contact with the first catching protrusion; And the fixing parts to be positioned on both sides of the second locking protrusions at intervals of the sum of the first locking protrusions, the second locking protrusions, and the third locking protrusions, respectively, in the direction of rotation of the rotating unit. Accordingly, it is made of a rotation limiting projection for stopping the braking ring in contact with one end of the both ends of the second engaging projection.

Hereinafter, a preferred embodiment of a communication terminal to which the rotary device according to the present invention is applied will be described in detail.

Figure 2 is an exploded perspective view of a communication terminal according to an embodiment of the present invention, Figure 3 and Figure 4 is an exploded perspective view of the rotary device shown in Figure 2, Figures 5 and 6 are coupled states of the rotary device shown in Figure 3 It is a cross section.

Opening and closing device shown in this figure, the rotating part 200 is fixed to the second body 120; A fixing part 220 fixed to the first body 100 and coupled to the rotating part 200 such that the second body 110 is rotated in a direction in which contact surfaces are alternated from the first body 100; Rotation is prevented by the fixing unit 220, and coupled to the recess formed in the rotating unit 200 at one or more phases to apply a predetermined braking force to the rotation of the second body 110 to generate a predetermined braking force. Clutch member for making; And an elastic member for generating an elastic force for pressing the clutch member toward the rotation part 200.

The rotating shaft portion 210 is formed in the center region of the rotating part 200, and the rotating hole 222 is formed in the central region of the fixing part 220 so that the rotating shaft portion 210 is rotatably inserted. Rotating member 210 is passed through the coupling member for preventing the separation of the rotary shaft 210 is coupled.

The fastening member includes a washer 262 and a seed ring 260 coupled to the annular groove 212 formed in the rotary shaft 210.

A through hole 214 is formed in the central region of the rotation shaft 210 to pass a signal line connected from the first body 100 to the second body 110.

The fixing part 220 allows the clutch member to flow to the elastic member side and the rotating part 200 side, and the insertion hole 224 to accommodate the clutch member to move the clutch member together when the fixing unit 220 rotates. ) Is formed.

Clutch member is made of a ball 240, the main portion is made of a hemispherical groove 216 to which the ball 240 is coupled.

The hemispherical groove 216 has a ball in a state in which the second body 110 is closed on the first body 100 and the second body 110 is rotated 90 ° or 180 ° from the first body 100 ( Respectively formed at positions joined to 240.

The elastic member is made of a seed spring 250 for elastically pressing the ball 240 and the inner surface in contact with the hemispherical groove 216.

The fixing part 220 is provided with a protrusion 228 protruding toward the seed spring 250, and the opening 252 of the seed spring 250 is caught by the protrusion 228 and rotates together with the fixing part 220.

The rotating part 200 and the fixing part 220 are fixed to the first body 100 and the second body 110 using the screw 270.

On the other hand, the rotating unit 200 is installed so as to rotate in both directions from the fixing unit 220, the braking means for preventing further rotation in a state in which the rotating unit 200 is rotated by a predetermined angle in both directions is installed.

The braking means is rotatably installed between the rotating part 200 and the fixing part 220, and a first catching protrusion 232 is formed at the rotating part 200, and the second at the fixing part 220. A braking ring 230 having a locking protrusion 234 formed thereon; A third locking protrusion 202 formed in the rotating unit 200 and braking in contact with the second locking protrusion 234; And the first locking projections 232, the second locking projections 234, and the third locking projections 202 at intervals of the sum of the lengths of the second locking projections 234. It is formed, it is made of a rotation limiting protrusion 226 for braking the braking ring 230 in contact with one end of the both ends of the second engaging projection 234 according to the rotation direction of the rotation part 200.

The rotation limiting projections 226 are positioned at both sides of the second locking projections 234 at intervals corresponding to the sum of the first locking projections 232, the second locking projections 234, and the third locking projections 202, respectively. Accordingly, when the fixing parts 220 are rotated in both directions, the fixing parts 220 may be rotated exactly 180 ° so that the second locking protrusions 234 may be caught by the third locking protrusions 202.

The control unit of the communication terminal having such a configuration, the liquid crystal screen 112 outputs an image output to the liquid crystal screen 112 installed in the second body 110 in a state in which the fixing unit 220 is rotated 90 ° and 180 ° It rotates by the same angle in the direction opposite to the rotation direction of has a function to be displayed correctly. To this end, the control unit has a separate sensor (not shown) for measuring the rotation angle of the fixing unit 220.

Hereinafter will be described the operation of the rotary device for a communication terminal as described above.

7 and 8 are cross-sectional views of the state of use of the rotary device shown in Figure 3, Figure 9 is a perspective view of the coupling state of the communication terminal shown in FIG. State perspective view.

The second body 110 of the communication terminal is normally closed to the first body 100, as shown in FIG.

In this state, as shown in FIG. 6, the ball 240 receiving the elastic force of the seed spring 250 is coupled to the hemispherical groove 216 of the rotating part 200 to generate a predetermined braking force to stop the rotating part 200. Accordingly, the rotating unit 200 and the second body 110 coupled thereto maintain the stopped state.

Meanwhile, when the user rotates the second body 110 in the lateral direction as shown in FIG. 9, the rotating part 200 fixed to the second body 110 starts to rotate about the rotating shaft part 210.

In the initial rotation operation of the rotating part 200, the ball 240 overcomes the pressing force of the seed spring 250 and rotates away from the hemispherical groove 216 of the rotating part 200 by the rotating operation of the rotating part 200.

Subsequently, when the second body 110 is rotated by 90 ° as shown in FIG. 10, the ball 240 is inserted into the hemispherical groove 216 of the rotating part 200 again and receives a pressing force of the seed spring 250 to generate a braking force. . Therefore, the second body 110 is able to maintain a state rotated 90 ° by receiving a predetermined braking force.

In addition, when the second body 110 is rotated by 90 °, the LCD screen 112 is elongated in the horizontal direction, and the controller detects the rotation of the rotating unit 200 from the sensor information and outputs it to the LCD screen 112. Display the image long in the horizontal direction. In this state, the user may view a movie or the like in a normal size through the LCD screen 112.

Subsequently, when the user continuously rotates the second body 110, the rotating part 200 fixed to the second body 110 starts to rotate about the rotating shaft part 210 again. At this time, the ball 240 is fixed by the fixing part 220 to overcome the pressing force of the seed spring 250 and to rotate away from the hemispherical groove 216 of the rotating part 200.

Subsequently, when the second body 110 is rotated 180 ° as shown in FIG. 11, the ball 240 is inserted into the hemispherical groove 216 of the rotating part 200 again and receives a predetermined braking force by receiving the pressing force of the seed spring 250. Generate. Accordingly, the second body 110 may maintain the rotated state by 180 ° by receiving a predetermined braking force.

In this process, the third locking protrusion 202 of the rotating part 200 pushes the first locking protrusion 232 of the brake ring 230 to rotate together, and the second locking protrusion 234 of the brake ring 230 is the rotating part. At the time when the 200 is rotated 180 °, the rotational limiting protrusion 226 of the fixing part 220 is caught so that the rotating part 200 is no longer rotated in the same direction.

As described above, when the second body 110 is rotated 180 °, the LCD screen 112 is lengthened again in the vertical direction, and the controller detects the rotation of the rotating unit 200 from the sensor information and outputs it to the LCD screen 112. The image is displayed long in the vertical direction. In this state, the user uses the unique function of the communication terminal.

Meanwhile, a process of closing the second body 110 in an open state from the first body 100 is performed in the reverse order.

In the above embodiment has been described in the case where the opening and closing device is installed in the portion connecting the first body 100 and the second body 110, the opening and closing device of the present invention is a hinge portion rotatably installed from the main body of the communication terminal It can also be installed and used to rotatably couple the display to the support.

As described above, the present invention has the effect of displaying a movie of a normal size by using the entire liquid crystal screen by rotating the display to lengthen the liquid crystal screen in the horizontal direction.

In the above, the present invention has been described as an embodiment, but the present invention is not limited to the above-described embodiments, and the present invention is not limited to the above-described claims, and has a general knowledge in the field of the present invention without departing from the gist of the present invention. Anyone who grows up will be able to make various variations.

Claims (11)

A rotating part fixed to the second body; A fixing part fixed to a first body and coupled to the rotating part such that the second body is rotated in a direction in which contact surfaces are alternated from the first body; A clutch member prevented from being rotated by the fixing unit and coupled to a recess formed in the rotating unit at one or more phases to apply a predetermined braking force to the rotation of the second body to generate a predetermined braking force; And It includes an elastic member for generating an elastic force for pressing the clutch member toward the rotating portion, The clutch member is made of a ball, the recess is a rotating device for a communication terminal, characterized in that consisting of a hemispherical groove to which the ball is coupled. The method according to claim 1, wherein the rotating shaft portion is formed in the central region of the rotating portion, In the central region of the fixed portion is formed a rotating hole rotatably inserted into the rotating shaft portion, Rotating device for a communication terminal, characterized in that the coupling member for preventing the separation of the rotating shaft portion is coupled to the rotating shaft portion passing through the rotating hole. The rotating device of claim 2, wherein a through hole is formed in a central region of the rotating shaft to pass a signal line connected to the second body from the first body. The method of claim 1, wherein the fixing portion, Rotation for a communication terminal, characterized in that the clutch member is allowed to flow to the elastic member side and the rotating part side, and an insertion hole for accommodating the clutch member to move the clutch member together when the fixing unit is rotated. Device. delete The method of claim 1, wherein the recess is in a position where the second body is coupled to the clutch member in a state in which the second body is closed on the first body and the second body is rotated 90 ° or 180 ° from the first body. Rotating device for a communication terminal, characterized in that each formed. The rotating device of claim 1, wherein the elastic member is formed of a seed spring for elastically pressing the clutch member and the inner side to elastically press the recessed portion. The rotating device of claim 7, wherein the fixing part is provided with a protrusion protruding toward the elastic member, and the opening of the elastic member is caught by the protrusion and rotates together with the fixing part. The rotating device for a communication terminal of claim 1, And a braking means for preventing the rotation part from being excessively rotated in a specific direction. The rotating device for a communication terminal of claim 1, The rotating part is installed to rotate in both directions from the fixed portion, Rotating device for a communication terminal, characterized in that it further comprises a braking means for preventing any further rotation in the state in which the rotating portion is rotated by a predetermined angle in both directions. The method according to claim 9 or 10, wherein the braking means, A braking ring rotatably installed between the rotating part and the fixed part, a first locking protrusion formed on the side of the rotating part, and a second locking protrusion formed on the fixed side; A third catching protrusion formed on the rotating part and braking in contact with the first catching protrusion; And It is formed in the fixed portion so as to be located on both sides of the second locking projection at intervals of the sum of the first locking projection, the second locking projection and the third locking projection, respectively, according to the direction of rotation of the rotating part And a rotation limiting protrusion for stopping the braking ring in contact with one end of both end portions of the second catching protrusion.

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