KR100550661B1 - Cellular phone and automatic revolution method of the cellular phone of - Google Patents

Abstract

The present invention relates to a foldable cellular phone and a method for automatically rotating a folder of the cellular phone, comprising: a main body having a keypad and provided with a hinge rotated in a lateral direction; A folder having a liquid crystal display for displaying data transmitted and received from the main body; A driving source installed at a lower end of the folder in a transverse direction to generate a driving force; A power transmission unit having one side connected to a driving source to be rotated by the driving force of the driving source, the other side being fixed to the folder, transmitting the driving force of the driving source to the folder, and rotating the folder in an open state; And a rotation control unit connected to the power transmission unit and embedded in a cylindrical housing installed perpendicular to the hinge of the main body to control rotation of the power transmission unit to enable automatic rotation and manual rotation of the folder. It is operated by the method according to the configuration, and can be automatically rotated by the rotating means, as well as manually rotated folder has a convenient effect in use.

Mobile, phone, folder, rotate, auto

Description

{Cellular phone and automatic revolution method of the cellular phone of}

1 is a perspective view showing a mobile phone according to the prior art.

FIG. 2 is a longitudinal sectional view of the pivoting portion of the mobile telephone shown in FIG. 1; FIG.

3 is a perspective view showing a mobile phone according to the present invention;

4 is a partial cutaway sectional view showing an embodiment of the folder rotating means by cutting a part of the mobile telephone shown in FIG.

5 is an exploded perspective view showing the configuration of the rotation control unit of the folder rotation means shown in FIG.

6 is a cross-sectional view schematically showing an operating state of the rotation control unit shown in FIG.

FIG. 7 is a flowchart showing an embodiment of a folder autorotating method by the mobile phone shown in FIG. 4; FIG.

8 is a cross-sectional view schematically showing another embodiment of the folder rotating means provided in the mobile telephone of FIG.

FIG. 9 is a flowchart showing another embodiment of a folder automatic rotating method by the cellular phone of FIG. 8; FIG.

10 is a use state showing the use of the mobile phone according to the present invention as a general camera.

<Description of Signs of Major Parts of Drawings>

50: main body 52: keypad

58: hinge 60: folder

62 liquid crystal display window 80 rotation means

89: rotation control unit 90: rotation completion detection means

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cellular phone, comprising a main body having a keypad and a folder having a liquid crystal display window.

In general, mobile phones are classified into a bar type, in which a keypad is exposed, a flip type in which a keypad is covered with a cover, and a folder type in which a body is folded in half. My brother is currently the dominant.

Such a clamshell-type mobile phone is configured such that a folder having a liquid crystal display window is foldably connected to a main body having a keypad, so that the keypad of the main body is opened and closed by a folder, and is disclosed in Japanese Patent Application Laid-Open No. Mobile phone described in Japanese Patent Application Laid-Open No. 11-30226) is configured not only to allow the folder to be folded about the main body, but also to satisfy the various needs of the user by allowing the folder to rotate in an open state.

The mobile phone described in the Japanese Patent Application Laid-Open No. 1 is well illustrated in FIG. 1, and FIG. 1 is a perspective view showing a mobile phone according to the prior art, and as shown, the mobile phone according to the prior art has a keypad 3. And a folder (2) having a liquid crystal display (1) and foldably fixed to the main body (4).

At this time, one end of the main body 4 is provided with a pair of cylindrical support shafts 5 and cylindrical hinges 5a rotatably fixed between the pair of support shafts 5, and the folder 2 is The lower end is connected to this hinge 5a and folded in the A direction shown.

Here, to explain in more detail that the folder 2 is connected to the hinge (5a), the folder 2 is provided with a cylindrical rotating part 10 for rotating the folder 2 in the B direction shown at the lower end, The pivot 10 is pivotally fixed perpendicularly to the hinge 5a of the main body 4 so that the hinge 5a and the folder 2 are connected to each other.

On the other hand, Figure 2 is a longitudinal cross-sectional view showing the rotating part of the mobile phone shown in Figure 1, showing the configuration of the rotating part 10 provided in the lower end of the folder (2), as shown in the rotating part ( 10 is a cylindrical rotary shaft (6) having a hollow connected to the folder (2), a fixed shaft (7) fixedly coupled to the rotary shaft (6) and fixed to the hinge (5a) provided on the main body (4), and a fixed shaft It consists of a nut (8) coupled to (7) and a coil spring (9) constrained by the nut (8).

More specifically, the rotating shaft 6 has an inward flange 6a formed inward at the lower end, and the fixed shaft 7 has a boss 7a protruding at the center, and a thread is formed on the outer circumferential surface of the boss 7a. .

Then, the boss 7a of the fixed shaft 7 is inserted through the inward flange 6a into the hollow of the rotation shaft 6, and the coil spring 9 and the nut 8 on the outer circumferential surface of the boss 7a after the penetration. Are sequentially locked.

Of course, the nut 8 is coupled to the thread of the boss 7a, and the coil spring 9 is locked between the nut 8 and the inward flange 6a of the rotation shaft 6, which nut 8 is inward and inward. The coil spring 9 is not separated out of the boss 7a by the flange 6a.

Therefore, when the folder 2 is rotated in the B direction shown in FIG. 1 by the user's operation, the rotating shaft 6 is rotated in the B direction which is the user's operation direction while being elastically supported by the coil spring 9, As a result, the folder 2 is rotated about the pivot 10.

In the mobile phone according to the related art configured as described above, since the hinge 5a rotatably fixed to the support shaft 5 of the main body 4 is rotated, the folder 2 can be folded, and the folder 2 is opened. In this case, the folder 2 can be rotated with the rotation unit 10 as an axis, so that the user can see the liquid crystal display window 1 of the folder 2 in a desired direction.

However, since the mobile phone according to the prior art rotates the folder 2 in the B direction by manual operation, the user has to grip the main body 4 with one hand and rotate the folder 2 with the other hand. there is a problem.

In addition, since the two hands must be used to rotate the folder 2 as described above, there is a problem that the folder 2 cannot be rotated in the B direction when the object is held in one hand.

On the other hand, when the camera shown in the main body 4 is mounted, the image captured by the camera is displayed on the liquid crystal display window 1 of the folder 2 to check the photographing state.

However, in order to show the image taken by the camera on the opposite side of the camera, the liquid crystal display (1), that is, the folder (2) must be rotated to the opposite side of the camera, and to do so, the folder (2) must be rotated to the opposite side by hand. There is discomfort.

The present invention was created in order to solve such a conventional problem, and can be rotated automatically or manually in a state in which the folder is opened with respect to the main body to position the liquid crystal display in a direction desired by the user, and a rotating means for rotating the folder. An object of the present invention is to provide a cellular phone having a structure in which the structure does not interfere with the liquid crystal display window of the folder.

Another object of the present invention is to provide a mobile phone in which a folder is automatically or manually rotated when the camera is mounted on the mobile phone so that the captured image can be easily checked on the other side of the camera.

In order to achieve the above object, a mobile telephone according to the present invention includes a main body having a keypad and provided with a hinge rotated in a lateral direction;

A folder having a liquid crystal display for displaying data transmitted and received from the main body;

A driving source installed at a lower end of the folder in a transverse direction to generate a driving force;

A power transmission unit having one side connected to a driving source to be rotated by the driving force of the driving source, the other side being fixed to the folder, transmitting the driving force of the driving source to the folder, and rotating the folder in an open state;

And a rotation control unit connected to the power transmission unit and embedded in a cylindrical housing installed perpendicular to the hinge of the main body to control rotation of the power transmission unit to enable automatic rotation and manual rotation of the folder. do.

In addition, the present invention includes the steps of (1) receiving a rotation signal of the folder;

(2) determining whether the folder is open to rotate the folder according to the rotation signal input;

(3) if the folder is opened, determining whether the LCD screen of the folder faces the front;

(4) rotating the folder by driving the motor when the driving direction of the motor is set according to the determination result;

(5) turning the folder rotated by the driving of the motor by a set angle to complete the rotation;

And (6) terminating the rotation operation of the folder by blocking the drive signal of the motor as the rotation of the folder is completed.

In addition, the present invention comprises the steps of (1) receiving a rotation signal of the folder;

(2) determining whether the folder is open to rotate the folder according to the rotation signal input;

(3) if the folder is opened, determining whether the LCD screen of the folder faces the front;

(4) rotating the folder by driving the motor when the driving direction of the motor is set according to the determination result;

(5) determining whether the rotation completion sensor for detecting the rotational motion of the folder is “on” as the rotation of the folder rotated by the driving of the motor is completed;

(6) if the rotation completion sensor is "on" as a result of the determination, blocking the drive signal of the motor to terminate the rotation operation of the folder;

Hereinafter, with reference to the accompanying drawings will be described a mobile phone according to an embodiment of the present invention.

3 is a perspective view showing a mobile phone according to the present invention, FIG. 4 is a partial cutaway sectional view showing an embodiment of a folder rotating means by cutting a part of the mobile phone shown in FIG. 3, and FIG. An exploded perspective view showing the configuration of the rotation control unit of the folder rotation means shown in Figure 6, and Figure 6 is a schematic cross-sectional view showing the operating state of the rotation control section shown in FIG.

As shown in FIG. 3, the mobile phone according to the present invention is folded by being fixed to a main body 50 including a keypad 52 and a transmitting microphone 54 and a hinge 58 fixed to one side of the main body 50. And a folder 60 including a liquid crystal display window 62 and a receiving speaker 64.

Here, the main body 50 has a pair of cylindrical support shafts 56 on both sides of the end portion, and a cylindrical hinge 58 is rotatably fixed in a horizontal direction between the pair of support shafts 56.

Then, the lower end of the folder 60 is connected to the hinge 58 orthogonal state so that the folder 60 is folded in the A direction shown, and the rotating means 80 to rotate the open folder 60 in the B direction ) Is installed.

That is, as the pivoting means 80 extending from the bottom of the folder 60 is connected to the hinge 58, the folder 60 is folded with respect to the main body 50 while being rotated in the A direction along with the hinge 58, When the folder 60 is opened by the rotation of the hinge 58, the folder 60 is rotated in the B direction with the rotation means 80 as the rotation axis.

At this time, the rotation means 80 may automatically rotate the folder 60 by the motor M, which will be described later, and operate the folder 60 manually when the motor M is not driven.

On the other hand, reference numeral SW is a switch for operating the motor (M) provided in the rotation means 80, C is a camera capable of imaging is provided on one side of the hinge 58 to rotate the hinge 58 about the axis. Although illustrated, an example may be selectively provided on one side of the folder 60 or the main body 50.

Hereinafter, in the description of the present invention, the operation in which the folder 60 is rotated and opened and closed in the A direction is referred to as "folding", and the operation in which the folder 60 is rotated to change the direction of the liquid crystal display 62 is represented as "rotation". do.

Here, with reference to Figure 4 with reference to the rotating means 80, which is the greatest feature of the present invention, the rotating means 80 is installed in the transverse direction inside the lower end of the folder 60 as shown to generate a driving force It includes a motor (M) and the power transmission unit (MG, SG) is connected to the rotary shaft (S) of the motor (M) which is a drive source for transmitting the rotational force generated in the motor (M) in the vertical direction.

At this time, the motor M is a geared motor provided with a speed reducer having a reduction ratio of approximately 500 to 600: 1 so that forward and reverse rotation is possible, and a torque for rotating the folder 60 is output. The reducer may be configured with a plurality of planetary gears to amplify the driving torque of the motor M, and may invalidate the cogging torque generated from the motor M. FIG.

On the other hand, since the motor M is installed in the lateral direction and does not interfere with the liquid crystal display window 62, the size of the liquid crystal display window 62 is not reduced even when the rotation means 80 is provided.

Subsequently, the rotation means 80 is vertically connected to the power transmission parts MG and SG to control the rotation of the rotating power transmission parts MG and SG, and the rotation control part 89. It is installed on the outer circumferential surface of the rotating control unit 89, and includes a housing (H) that is embedded in a vertical state fixed to the hinge (58).

Here, the power transmission unit (MG, SG) is composed of a pair of bevel gears interlocked with each other, as shown, driven gear MG and driven gear meshed to the drive gear (MG) connected to the rotating shaft of the motor (M). (SG).

However, it is obvious that other mechanical devices including cams or joints that can vertically transmit the rotational force of the motor M may be applied to the power transmission units MG and SG, not to the illustrated bevel gears.

On the other hand, the driven gear (SG) of the power transmission unit (MG, SG) has a shaft (S ') formed in the lower portion, this shaft (S') is a folder (60) by the fixing means (W, SR) To be one.

Here, the fixing means (W, SR) is a snap to firmly fixed to the folder (60) by pressing the washer (W) and the washer (W) to be fitted to the outer periphery of the shaft (S ') as its enlarged view by its elastic force It is made of a ring SR, and in some cases, only one of the washer W and the snap ring SR may be selectively applied.

In order to reinforce the fixing force of the fixing means W and SR, the outer circumferential surface of the shaft S 'may be intermittently processed, and the fixing means W and SR may be fastened and fixed to the intermittent processed portion.

On the other hand, on the outer circumferential surface of the shaft (S ') can be installed a bearing (B) in order to increase the rotational efficiency of the folder (60), such a bearing (B) is applicable to both rolling bearings and sliding bearings.

Meanwhile, the rotation controller 89 is vertically fixed to the lower end of the shaft S 'and connected to the driven gear SG, and the rotation of the power transmission units MG and SG is controlled by the connection.

The rotation controller 89 is coupled to the male cam 84 connected to the shaft S 'of the driven gear SG and the male cam 84 at the lower portion of the male cam 84 to constrain the male cam 84. The female cam 86 and the lower portion of the female cam 86 is made of an elastic member 88 to elastically support the male and female cams (84, 86) to maintain a coupled state.

At this time, the female cam 86 selectively restrains and releases the male cam 84 while vertically reciprocating up and down according to the rotation of the male cam 84.

On the other hand, the male cam 84 is formed to extend the central axis (sh) in the lower portion so as not to be separated from the hinge 58 of the main body 50, the central axis (sh) penetrates the female cam 86 as shown Thus, the housing H is fixed to the hinge 58.

Of course, the central axis (sh) is formed with a projection at the lower end so as to be fixed to the hinge 58, the projection is caught is fixed to the outer peripheral surface of the hinge (58).

In addition, a through hole is formed in the female cam 86, the housing H, and the hinge 58 so that the central axis sh can be penetrated.

Here, the projection formed on the lower end of the central axis (sh) may be formed of a fastening member such as a nut, unlike shown.

That is, the central shaft sh can be fixed to the hinge 58 by forming a screw thread at the lower end of the central shaft sh to fasten the nut.

Referring to FIG. 5 with respect to the rotation control unit 89 as described above, the male cam 84 is a projection 84a having a tapered surface at the end opposite to the shaft S 'of the driven gear SG. The female cam 86 has a groove 86a corresponding to the protrusion 84a of the male cam 84.

The male and female cams 84 and 86 may be coupled to each other by the protrusions and the grooves 84a and 86a, and the male cams 84 are constrained to the female cam 86 by this coupling.

In addition, the female cam 86 is slid downward by the projections and the tapered surfaces formed in the grooves 84a and 86a during the rotation of the male cam 84, thereby releasing the male cam 84 from restraint.

On the other hand, the outer circumferential surface of the female cam 86 guides the vertical reciprocating motion of the female cam 86 when the female cam 86 is slipped down, and also prevents the female cam 86 from rotating. ) Is formed to protrude at least one.

Of course, in order for the female cam 86 to be prevented from rotating by the anti-rotation piece 86b, an accommodation groove corresponding to the anti-rotation piece 86b must be formed on the inner circumferential surface of the housing H, and the housing H is accommodated. By locking the anti-rotation piece 86b in the groove, the female cam 86 can function as an anti-rotation function and a guide.

Here, reference numeral 86c in FIG. 5 denotes a through hole through which the central axis sh of the male cam 84 passes.

The folder 60 can be rotated by the rotation means 80 composed of the motor M, the power transmission units MG, SG, and the rotation control unit 89 as described above.

The rotation operation of the folder 60 by the rotation means 80 will be described later. Looking at the configuration of the mobile phone according to the present invention again, the present invention shows the folder 60 as shown in FIG. And folder state detection means (Ma, H1 to H3) provided in the main body (50) for detecting a folded state and a rotating state of the folder (60).

Here, if the folder state detection means (Ma, H1 to H3) will be described in detail, the folder state detection means (Ma, H1 to H3) is electrically connected to a control IC (not shown) for controlling the rotation means (80). In the configuration, the magnet Ma embedded in the lower end side of the folder 60 and the main body 50 and the hinge 58 of the main body 50 are respectively installed to correspond to the magnet Ma. The first to third Hall elements H1 to H3 sense magnetic fields.

When the first to third Hall elements H1 to H3 are described correctly, the first and second Hall elements H1 and H2 are embedded at both sides of the upper end of the main body 50, respectively. H3) is built in the hinge 58 is installed.

Therefore, as shown in FIG. 4, when the folder 60 is opened, the third Hall element H3 corresponds to the magnet Ma, and applies the magnet Ma detection signal to the control IC, which controls the folder by the signal. Note that 60 is open.

However, when the folder 60 is rotated to 180 ° in the normally open state as shown in the drawing, and the third hall element H3 cannot detect the magnet Ma, the third hall element H3 is a magnet ( Ma) Since the detection signal is not applied to the control IC, the control IC recognizes that the folder 60 is rotated.

On the contrary, when the folder 60 is folded and closed, the magnet Ma faces the first or second hole elements H1 and H2, and in this case, the first and second hole elements H1 and H2 are magnets. Ma) The detection signal is applied to the control IC so that the control IC can recognize the closing of the folder 60.

That is, when the folder 60 is closed in the normally open state as shown in FIG. 4, the magnet Ma faces the second hole element H2. However, if the folder 60 is rotated 180 ° in the normal open state, the magnet is closed. Ma faces the first hall element H1.

Therefore, when the control IC receives the magnet Ma detection signal from the first hall element H1, the control IC recognizes that the folder 60 is closed after 180 ° rotation, and the magnet Ma from the second hall element H2. Upon receiving the detection signal, the folder 60 is recognized as closed in the normal open state.

The folder state detection means (Ma, H1 ~ H3) can be configured as a non-contact as described above, alternatively can also be configured as a contact type configured as a switch type, in the case of a contact type of the magnet (Ma) Protrusions are formed at the positions, and contact switches corresponding to the protrusions should be formed at the positions of the first to third Hall elements H1 to H3.

On the other hand, the folder 60 can be rotated to 180 ° exactly by setting the time to rotate the folder 60 to 180 ° or the driving frequency of the motor M required to be rotated to the control IC.

In addition, as shown in FIG. 4, the rotation preventing means (P, ST) for stopping the rotation of the folder 60 is installed in the housing (H) of the folder 60 and the rotating means (80) of the folder (60). Accurate rotation can be induced.

Here, the rotation preventing means (P, ST) will be described, the anti-rotation means (P, ST) is a lower projection (P) protruding at the lower end of the folder 60, and the lower projection on the upper end of the housing (H) It is provided to correspond to (P) is made of a stopper (ST) to stop the rotation of the folder 60 by stopping the lower projection (P) rotated together during the rotation of the folder (60).

When the lower projection P is stopped by the stopper ST, the overload current of the rated current is generated in the motor M driven by stopping the rotation of the folder 60, so that the control IC senses the overload current. It is to be designed to stop the operation of (M).

On the other hand, the stopper ST prevents the rotation of the lower projection P as described above, so that the folder 60 opened in the normal state is prevented from rotating beyond the set rotation angle of 180 °.

Accordingly, the folder 60 is prevented from rotating by 180 ° or more, which is the rotation angle set by the rotation preventing means P and ST, so that the wires that are not shown, which are electrically connected to the folder 60 and the main body 50, are flexible. It is possible to prevent twisting of the flexible pcb.

In this case, the limit switch may be provided on one side of the stopper ST so that the driving power of the motor M is cut off when the lower protrusion P contacts the stopper ST. You can also use a switch.

Of course, when the limit switch is provided, when the limit switch cuts off the driving power of the motor M, the rotation operation of the folder 60 ends.

On the other hand, reference numeral 59 shown in Fig. 4 is a rotating device made of a motor for rotating the hinge 58 to automatically fold the folder 60 of the mobile phone, the hinge 58 and the support shaft as necessary Optionally, it may be provided in the 56, and when the rotating device is provided, the folder 60 of the cellular phone can be automatically folded by driving the rotating device.

Referring to the operation of the mobile phone according to the present invention configured as described above are as follows.

First, referring to FIG. 4, the automatic rotation operation of the folder 60 will be described. As shown in the drawing, the folder 60 closed by the main body 50 is opened by manual or automatic operation by the rotation device 59. The magnet Ma of the folder 60 faces the third hole element H3.

At this time, the third hall element H3 detects the magnet Ma and applies a detection signal to the control IC to inform that the folder 60 is opened in a normal state.

Then, when the switch SW for driving the motor M is operated, the control IC rotates the motor M of the rotation means 80 forward according to the signal sensed by the third hall element H3, and the motor (M) rotates the rotary shaft (S) and the drive gear (MG) while being driven.

Then, the elastic member 88 of the rotation control unit 89 elastically supports the female cam 86 so that the male cam 84 and the female cam 86 are coupled to each other, thereby the male cam 86 to the male cam 86 84), the driven gear SG is not rotated.

At this time, since the drive gear SG is not rotated, the drive gear MG is circumferentially rotated in an external state along the gear of the driven gear SG, and the motor M also rotates by the rotation of the drive gear MG. do.

Then, the folder 60 fixed integrally with the motor M due to the rotation of the motor M rotates the shaft S 'of the driven gear SG with the shaft, and this rotational operation is performed on the shaft S'. It is made smoothly by the fastened bearing (B).

The rotated folder 60 rotates forward by 180 ° according to the driving time or the driving frequency of the motor M set in the control IC so that the liquid crystal display 62 faces the opposite side of the initial position shown in FIG. 4.

Then, the user can check the liquid crystal display 62 on the other side. Accordingly, when the image is captured using the camera C, the photographed subject is displayed on the liquid crystal display 62 facing the opposite side.

Of course, the 180 ° rotation of the folder 60 is not controlled by the driving time or the driving frequency of the motor M, and the rotation prevention means P and ST having the limit switches as described above are applied to the folder 60 to rotate the 180 ° rotation of the folder 60. You can also precisely control the rotation.

On the other hand, when the rotation of the folder 60 is completed, the magnet Ma installed in the folder 60 is located on the opposite side of the third hole element H3, so that the third hole element H3 cannot detect the magnet Ma. It becomes impossible.

At this time, when the user closes the folder 60 by manual or automatic operation, the folder 60 is rotated together with the hinge 58 to shield the main body 50, and thus the magnet Ma is the first hole. It faces the element H1.

The first Hall element H1 applies a magnet sensing signal to the control IC. The control IC rotates the folder 60 by 180 ° so that the liquid crystal display 62 is inverted toward the opposite side. Notice that it is closed by state.

Therefore, when the switch SW which drives the motor M of the rotation means 80 is manipulated later, the control IC operates the motor (so that the folder 60 is inverted again so that the liquid crystal display window 62 is in a normal state facing the front side). Reverse M).

That is, when the user opens the folder 60 in which the liquid crystal display 62 is opposite, and operates the switch SW, the control IC applies the reverse rotation signal to the motor M, thereby inverting the folder 60. Rotate to the normal state.

At this time, since the folder 60 is reversely rotated in the reverse order of the above operation in which the folder 60 is rotated forward by 180 ° in the normal state, detailed description thereof will be omitted.

After the folder 60 returns to the normal state as described above, when the user closes the folder 60 again, the magnet Ma faces the second hole element H2, and the second hole element H2 is the folder. A magnet (Ma) sensing signal is applied to the control IC so that the control IC recognizes that 60 is closed in the normal state.

Therefore, the cellular phone according to the present invention completes the folder 60 automatic rotation operation and the folding operation by the above-described method.

As described above, the rotated folder 60 may be rotated by 180 ° in the front and rear, respectively, and may rotate 360 ° in the rear after rotating 180 ° forward.

That is, the folder 60 can be rotated 180 ° in the forward rotation while the folder 60 is normally open, and after being rotated 180 ° in the forward rotation, 360 ° can be rotated again in the reverse rotation.

At this time, the folder 60 is rotated by 180 ° or 360 °, and then the rotation is prevented by the lower protrusion P and the stopper ST of the rotation preventing means P and ST, and thus, the main body 50 and the folder. The wiring not shown connecting 60 is prevented from twisting.

As described above, the mobile phone according to the present invention automatically rotates the folder 60 by the above-described operation. In contrast, the rotation of the folder 60 by manual operation will be described below.

If the user rotates the folder 80 manually, the folder 60 is rotated, but the driven gear SG and the drive gear MG of the power transmission units MG and SG are connected to the reducer of the motor M. As the rotation of the planetary gear is prevented due to the engagement of the planetary gears provided therewith, they remain engaged with each other.

Therefore, the folder 60 is rotated, but the drive gear MG and the driven gear SG are not rotated.

However, the shaft S 'of the driven gear SG fixed to the folder 60 is rotated together with the folder 60 as the folder 60 is rotated.

At this time, the male cam 84 is also rotated by the rotation of the shaft S ', and the male cam 84 is rotated while sliding the female cam 86 down by Δl as shown in FIG. Compress it.

Then, the male cam 84 is pivotally supported in the groove 86a of the female cam 86 by moving away from the restraint of the female cam 86, thereby enabling manual rotation of the folder 60.

Even when the folder 60 is rotated by the manual operation, the folder 60 is prevented from rotating by the lower protrusion P and the stopper ST constituting the rotation preventing means P and ST, and the magnet Ma And the rotational state and folding state of the folder 60 are sensed by the folder state detection means Ma, H1 to H3 composed of the first to third hole elements H1 to H3.

On the other hand, when the manual rotation of the folder 60 is terminated, the male and female cams 84 and 86 of the rotation control unit 89 are combined again to prevent the flow of the folder 60.

That is, the folder 60 is not rotated even if a shock or external force is applied to the folder 60 as the rotation controller 89 is coupled when the rotation is completed.

The method for automatic folder rotation of the mobile phone according to the present invention constructed and operated as described above is well illustrated in FIG. 7, and FIG. 7 is an embodiment of the method for automatically rotating folders by the mobile phone shown in FIG. 4. An example flowchart is shown.

As shown in the drawing, the automatic folder turning method of a mobile phone according to an embodiment of the present invention operates a switch SW for driving the motor M of the turning means 80 to input a turning signal of the folder 60. Step S1, and determining whether or not the folder 60 is opened in order to rotate the folder 60 in accordance with the input signal (S2).

At this time, when the folder 60 is opened, the first and second Hall elements H1 and H2 do not detect the magnet Ma, and the current waveform becomes low. On the contrary, the folder 60 is not opened. In this case, any one of the first and second Hall elements H1 and H2 detects the magnet Ma, and the current waveform becomes high.

If the waveforms of the first and second Hall elements H1 and H2 become high, the next step is performed after opening the closed folder 60 in step S2.

Subsequently, the present invention provides a method for determining whether the folder 60 is opened, but is opened in a normal state to open the liquid crystal display 62 toward the front side, or is opened in an abnormal state so that the liquid crystal display 62 faces to the opposite side ( S3).

At this time, when the liquid crystal display window 62 is opened in the normal state, the third hall element H3 detects the magnet Ma and the current waveform is high. As a result, the control IC opens the folder 60 in the normal state. It is recognized.

Subsequently, according to the present invention, the driving direction of the motor M is set according to the direction of the liquid crystal display 62 of the folder 60, and the motor 60 is driven to rotate the folder 60 according to this setting. (S4) is included.

Here, in step S4, the motor M may be rotated forward (S4a) or reversely rotated (S4a ′) in the direction of the LCD screen 62 of the folder 60.

That is, when the direction of the LCD screen 62 faces the front side, the motor M is rotated forward so that the folder M rotates in the forward direction, and when the direction of the LCD screen 62 faces the opposite side, the folder M Rotate the motor (M) so that) rotates in the reverse direction.

Still further, according to the present invention, the rotation operation of the folder 60 is completed or the operation of the rotation preventing means P or ST is completed as the driving time or the driving frequency of the motor M set in the control IC is completed. In step S5, the rotation operation of the folder 60 is completed.

Finally, as the rotation of the folder 60 is completed, the driving signal of the motor M is blocked to terminate the automatic rotation operation of the folder 60 (S6).

On the other hand, Figure 8 is a cross-sectional view schematically showing another embodiment of the folder rotating means provided in the mobile phone of Figure 3, all the configuration and the same as the rotating means 80 of the embodiment of the present invention described above, power transmission unit The difference is that the rotation completion detection means 90 for detecting the completion of the rotation of the folder 60 at the lower portion of the driven gear SG constituting the MG and SG further terminates the rotation operation of the folder 60. .

Therefore, in the description, the same components as the above-described exemplary embodiments of the present invention are denoted by the same reference numerals, and redundant description of the same configuration and operation will be omitted.

As shown, the rotation means 80 according to another embodiment includes a motor M, a power transmission unit MG. SG, and a power transmission unit consisting of a drive gear MG and a driven gear SG connected thereto. MG. SG) and a housing (H) surrounding the rotation control unit (89) and the rotation control unit (89).

In addition, a rotation completion sensor 90 is provided at a lower portion of the driven gear SG, and the rotation completion detection sensor 90 is first and second spaced apart at intervals of 180 ° from the lower surface of the driven gear SG. Rotation that is fixed to the second fixed terminal (92, 92 ') and the lower portion of the first and second fixed terminal (92, 92') connected to any one of the first and second fixed terminal (92, 92 ') It consists of a terminal 94.

At this time, the rotary terminal 94 is preferably fixed to the folder 60 side as shown in the figure.

The rotation completion sensor 90 configured as described above may be configured as a contact type in which the first and second fixed terminals 92 and 92 'are in contact with the rotary terminal 94 to output an electric signal. It can be configured as a non-contact type, such as a conventional magnetic sensor or photosensor, which interacts with each other to output an electrical signal.

The rotation completion sensor 90 is applied to the control IC not shown when the electrical signal is output by the interaction of the components, the control IC recognizes that the rotation of the folder 60 by the signal is completed The drive signal applied to the motor M is blocked to terminate the rotation operation of the folder 60.

As described above, the operation of the mobile telephone according to another embodiment of the present invention having the rotation completion sensor 90 is driven by first driving the motor M to drive the gear MG to the gear of the driven gear SG. The folder 60 is rotated by circumferentially rotating.

Then, the rotary terminal 94 provided in the folder 60 is rotated with the folder 60 is located on the opposite side of the original position.

That is, the rotary terminal 94 facing the first fixed terminal 92 in the drawing faces the second fixed terminal 92 'positioned on the opposite side as the folder 60 rotates.

At this time, the rotary terminal 94 is connected to the second fixed terminal 92 'to generate an electrical signal and apply the signal to the control IC. The control IC has the rotary terminal 94 of 180 ° according to this signal. Since the rotation is at an angle, the drive of the motor M is stopped by recognizing that the rotation of the folder 60 is completed.

Then, as the driving of the motor M is stopped, the rotation operation of the folder 60 ends.

On the other hand, it is possible to check the opening state of the folder 60 by checking which one of the first and second fixed terminals 92, 92 'is connected to the rotation terminal 94 of the rotation completion sensor 90.

That is, it can be seen whether the liquid crystal display 62 of the folder 60 faces the front side or the rear side according to the connection state of the rotation completion sensor 90.

If the first fixed terminal 92 is connected to the rotary terminal 94 as shown in FIG. 8, the folder 60 is rotated so that the liquid crystal display 62 of the folder 60 faces the front side, and the second fixed terminal is reversed. When the terminal 92 is connected, the folder 60 is rotated so that the liquid crystal display 62 of the folder 60 faces the rear side.

Therefore, not only the rotation of the folder 60 is completed by the rotation completion sensor 90, but also the open state of the folder 60 can be known.

On the other hand, Figure 9 is a view showing a method for the automatic folder rotation method of the mobile phone according to another embodiment described above, a flow diagram showing another embodiment of the automatic folder rotation method of the mobile phone exactly in Fig. It is a chart.

As shown in the drawing, the automatic folder turning method of the mobile phone according to another embodiment of the present invention allows a rotation signal of the folder 60 to be input by operating a switch SW for driving the motor M of the turning means 80. Step S11 and determining whether or not the folder 60 is opened in order to rotate the folder 60 in accordance with the input signal (S12).

At this time, when the folder 60 is opened, the first and second Hall elements H1 and H2 do not detect the magnet Ma, and the current waveform becomes low. On the contrary, the folder 60 is not opened. In this case, any one of the first and second Hall elements H1 and H2 detects the magnet Ma, and the current waveform becomes high.

If the waveforms of the first and second Hall elements H1 and H2 become high, the next step is performed after opening the closed folder 60 in step S12.

Subsequently, the present invention provides a method for determining whether the folder 60 is opened, but is opened in a normal state to open the liquid crystal display 62 toward the front side, or is opened in an abnormal state so that the liquid crystal display 62 faces to the opposite side ( S13).

At this time, when the liquid crystal display window 62 is opened in the normal state, the third hall element H3 detects the magnet Ma and the current waveform is high. As a result, the control IC opens the folder 60 in the normal state. It is recognized.

Subsequently, according to the present invention, the driving direction of the motor M is set according to the direction of the liquid crystal display 62 of the folder 60, and the motor 60 is driven to rotate the folder 60 according to this setting. (S14) is included.

Here, in step S14, the motor M may be rotated forward (S14a) or reversely rotated (S14a ′) in the direction of the LCD screen 62 of the folder 60.

That is, when the direction of the LCD screen 62 faces the front side, the motor M is rotated forward so that the folder M rotates in the forward direction, and when the direction of the LCD screen 62 faces the opposite side, the folder M Rotate the motor (M) so that) rotates in the reverse direction.

On the other hand, when the rotation of the folder 60 by the drive of the motor M, the rotation completion detection sensor 90 for detecting whether the rotation operation of the folder 60 is completed is also operated together.

Still further, the present invention performs steps S15 and S15 'to determine whether the rotation of the folder 60 is completed and the rotation completion sensor 90 is " ON &quot;.

At this time, step S15 is when the folder 60 is rotated in the forward direction by the forward drive of the motor (M), step S15 'is a case where the folder 60 has been rotated in the reverse direction by the reverse drive of the motor (M). If it is.

Finally, the present invention is the step of terminating the automatic rotation operation of the folder 60 by blocking the drive signal of the motor (M) in accordance with the completion of the rotation of the folder 60 and the rotation completion detection sensor 90 "on". (S16) is included.

The mobile telephone according to the embodiment and the other embodiment of the present invention constructed and operated as described above may rotate the folder 60 automatically by driving the rotation means 80 when the folder 60 is opened. .

In addition, according to the folder automatic rotation method of the mobile phone according to the present invention consisting of the steps S1 to S6, or S11 to S16 automatically detects the folded state or the rotated state of the folder 60 to suit the state of the folder 60 Not only can be automatically rotated, but can also be terminated automatically when the rotation is completed.

On the other hand, Figure 10 is a state diagram showing the use of the mobile phone according to the present invention as a general camera, as shown in the folder 60 is rotated by the rotating means 80, the liquid crystal display window 62 is on the opposite side Then, the folder 60 is folded into the main body 50, and the camera C is rotated in the direction of the subject to capture the image.

Then, the captured optical image is displayed on the liquid crystal display window 62, and the user checks a subject to be photographed through the liquid crystal display window 62, and then operates the switch SW that functions as a shutter to take a picture.

Therefore, the mobile phone according to the present invention can be used by operating like a general camera as shown, and thus can be conveniently used as a general camera.

The above embodiment is merely a description of the preferred embodiment of the present invention, the scope of application of the present invention is not limited to such, and can be changed as appropriate within the scope of the same idea.

Therefore, the shape and structure of each component shown in the embodiment of the present invention can be carried out by modifying, it is natural that the modification of the shape and structure belong to the appended claims of the present invention.

As described above, according to the mobile phone according to the present invention, not only can the folder opened in the main body be automatically rotated, but also can be rotated manually. In addition, when the folder is automatically rotated, the user can rotate the folder with one hand. Since the liquid crystal display window can be positioned in a desired direction while controlling the rotation, there is an effect of improving convenience in use of the mobile telephone.

In addition, there is an advantage that the structure of the rotation means for rotating the folder does not interfere with the liquid crystal display window of the folder so that the size of the liquid crystal display window does not have to be reduced.

Claims (25)

A main body having a keypad and provided with a hinge rotated in a lateral direction; A folder having a liquid crystal display for displaying data transmitted and received from the main body; A driving source installed at a lower end of the folder in a transverse direction to generate a driving force; A power transmission unit connected to one side of the driving source to be rotated by the driving force of the driving source and fixed to the other side to transfer the driving force of the driving source to the folder to rotate the folder in an open state; A mobile telephone capable of being connected to the power transmission unit and embedded in a housing installed perpendicular to the hinge of the main body and including a rotation control unit for controlling the rotation of the power transmission unit to enable automatic and manual rotation of the folder. To The power transmission unit is composed of a pair of bevel gears consisting of a drive gear connected to the drive source and a driven gear having a shaft engaged with the drive gear and fixed to the folder, The rotation control unit has a male cam having one side connected to the power transmission unit and a tapered protrusion formed at both sides thereof, and a groove corresponding to the protrusion of the male cam formed to selectively insert the projection of the male cam into the groove. It is installed under the female cam and the female cam that constrains the cam, and when the male cam is constrained to the female cam, the female cam is elastically supported to maintain the restraint state. A mobile phone, characterized in that it further comprises an elastic member. delete The method of claim 1, And a fixing means for fixing the folder to an outer circumferential surface of the shaft provided in the driven gear. The method of claim 3, wherein The fixing means includes a ring-shaped washer; And a snap ring laminated to the washer and pressing the washer with an elastic force. The method of claim 3, wherein The shaft of the driven gear further comprises a bearing for increasing the rotational efficiency of the folder on the outer circumferential surface in contact with the folder. delete The method of claim 1, The projection of the male cam is formed with a central axis extending downward, the central axis penetrates the hinge of the female cam, the housing and the main body is fixed to the outer peripheral surface of the hinge. The method of claim 1, The female cam has at least one protruding anti-rotation piece formed on an outer circumferential surface, and an accommodation groove corresponding to the anti-rotation piece is formed on an inner circumferential surface of the housing, and the female cam is accommodated in the receiving groove. Mobile phone, characterized in that the rotation is prevented. The method of claim 1, The main body and the folder further comprises a folder state detecting means for detecting an open state or a folded state of the folder. The method of claim 9, The folder state detecting means includes a magnet provided in the folder; And at least one hall element provided in the main body so as to correspond to the magnet and detecting the state of the folder when the magnetic field of the magnet is detected. The method of claim 1, The rotating control unit including the housing and the folder, the mobile phone further comprises a rotation preventing means for stopping the rotation when the rotating folder is rotated by a set angle. The method of claim 11, The anti-rotation means includes a lower protrusion protruding from the lower portion of the folder to rotate together with the folder; And a stopper provided in the housing so as to correspond to the lower protrusion and stopping the rotation of the folder by corresponding to the lower protrusion rotated together with the folder. The method of claim 12, And the stopper further comprises a limit switch on one side of which stops the driving of the driving source when the lower projection corresponds to the lower projection so that the rotation of the folder is terminated. The method of claim 1, And the folder and the power transmission unit further include rotation completion detection means for detecting when the rotation of the folder is completed and stopping driving of the driving source. The method of claim 14, The rotation completion detecting means includes at least one fixed terminal provided in the power transmission unit; And a rotating terminal provided in the folder so as to correspond to the fixed terminal and rotating when the folder is rotated to correspond to the fixed terminal to sense that the rotation of the folder is completed. The method of claim 15, The fixed terminal is composed of two mobile phones, characterized in that spaced apart at intervals of 180 ° on both sides of the power transmission. The method according to claim 15 or 16, And the fixed terminal and the rotating terminal are respectively composed of a magnet and a hall element to detect a rotation completion state of the folder by detecting a magnetic field. In the folder automatic rotation method of a mobile phone that can talk wirelessly, (1) receiving a rotation signal of a folder; (2) determining whether the folder is open to rotate the folder according to the rotation signal input; (3) if the folder is opened, determining whether the LCD screen of the folder faces the front; (4) rotating the folder by driving the motor when the driving direction of the motor is set according to the determination result; (5) turning the folder rotated by the driving of the motor by a set angle to complete the rotation; And (6) terminating the rotation operation of the folder by cutting off the drive signal of the motor as the rotation of the folder is completed. The method of claim 18, The step (2) further comprises the step of opening the closed folder when the folder is not opened; automatic folder rotation method of a mobile phone characterized in that it further comprises. The method of claim 18, And said step (4) includes rotating the motor forward when the liquid crystal screen of the folder faces the front side in the step (3). The method of claim 18, The step (4) includes the step of rotating the motor reversely when the liquid crystal screen of the folder in the step (3) does not face the front; auto-rotating folder for a mobile phone comprising a. In the folder automatic rotation method of a mobile phone that can talk wirelessly, (1) receiving a rotation signal of a folder; (2) determining whether the folder is open to rotate the folder according to the rotation signal input; (3) if the folder is opened, determining whether the LCD screen of the folder faces the front; (4) rotating the folder by driving the motor when the driving direction of the motor is set according to the determination result; (5) determining whether the rotation completion sensor for detecting the rotational motion of the folder is “on” as the rotation of the folder rotated by the driving of the motor is completed; (6) if the rotation completion sensor is "on" as a result of the determination, blocking the drive signal of the motor to end the rotation operation of the folder. The method of claim 22, The step (2) further comprises the step of opening the closed folder when the folder is not opened; automatic folder rotation method of a mobile phone characterized in that it further comprises. The method of claim 22, The step (4) includes the step of forward rotation of the motor when the liquid crystal screen of the folder in the (3) the front facing; the automatic folder rotation method of a mobile phone comprising a. The method of claim 22, The step (4) includes the step of rotating the motor reversely when the liquid crystal screen of the folder in the step (3) does not face the front; auto-rotating folder for a mobile phone comprising a.

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