KR100504425B1 - Portable radiotelephone being automatically/manually folded - Google Patents

Abstract

The present invention relates to a folding portable wireless terminal having a main body and a sub body installed to be opened and closed automatically and manually at a predetermined angle by a predetermined opening and closing device on the main body. By the power of the terminal is driven by the drive motor, the deceleration module using the cycloid gear method receives the rotational force of the drive motor and the opening and closing angle for opening and closing the terminal automatically or manually by receiving the rotational force of the reduction module It is set, and includes a hinge module for applying a preload at the maximum opening and closing position of the terminal.

Description

Foldable handheld wireless terminal for both automatic and manual use {PORTABLE RADIOTELEPHONE BEING AUTOMATICALLY / MANUALLY FOLDED}

The present invention relates to a foldable portable wireless terminal consisting of a main body and a sub body installed to be opened and closed at a predetermined angle on the main body. Particularly, a deceleration module using a cycloidal gear system is provided. The present invention relates to an automatic and a manual folding portable wireless terminal having a switchgear applied.

As portable wireless terminals become more and more popular, terminals of various functions and designs are appearing. In addition, the terminal is becoming smaller and lighter and smaller, and at the same time, the diversity of its functions is being highlighted. Therefore, in order to satisfy the needs of the consumers as described above, there is an emphasis on reducing the volume of the terminal to the maximum while maintaining or improving the function.

In addition, as the terminal becomes smaller and lighter while maximizing the variety of functions, users are increasingly seeking convenience, and terminal manufacturers are racing to solve the inconvenience caused when the user uses the terminal.

In recent years, a portable wireless terminal is a folder type consisting of a main body, which is a main body rather than a bar type, and a sub body, which is a folder installed to be opened and closed at a predetermined angle by a predetermined opening and closing device on the main body. type or flip-up type terminals are becoming mainstream. The reason for using such a folder type terminal is that the sub-body (including the flip cover or folder) connected to the main body protects a number of key buttons formed on the main body to prevent the malfunction of the device and plays the role of a negative reflector during a call. Because it collects the notes. Moreover, in the folder type terminal, the wide LCD module can be separately mounted in the folder portion, which is advantageous in miniaturizing the product and in implementing a variety of functions.

On the other hand, the above-described folder type terminal has been released to automatically open so that the folder can be opened simply by a button operation outside the terminal in order to satisfy the diversified needs of the user, and to increase the ease of use. In addition, the automatic opening and closing function of the terminal described above is configured to be opened by manual use.

A small drive motor is used for the automatic switching device of the automatic and manual combined terminal. However, although the simple flip degree can be opened only by the rotational force of the drive motor, it is difficult to open and close a sub body having a predetermined weight such as a folder. Therefore, the deceleration module that can reduce the number of revolutions while increasing the rotational force of the drive motor is applied to the switchgear.

Existing reduction modules have been used to increase planetary gear and pinion gears in multiple stages on a predetermined cylindrical housing to increase the rotational force and reduce the rotational speed of the original drive motor.

However, as described above, the deceleration module composed of the planetary gear has a relatively low reduction ratio even when a plurality of gears are used, and the gears that are engaged due to long use wear out and cause malfunction of the terminal. The use of a relatively large number of gears to output a high rotational torque occupies a lot of installation space and has a problem against the miniaturization of the terminal.

In order to solve the above problems, an object of the present invention is an automatic and manual combined portable wireless terminal having a deceleration module capable of outputting a relatively excellent reduction ratio and high rotational torque while using a small installation space. To provide.

Another object of the present invention is to provide an automatic and manual combined portable wireless terminal having a deceleration module configured to have excellent wear resistance even after a long opening and closing operation.

Still another object of the present invention is an automatic and manual dual-use portable wireless terminal having a reduction module configured to be relatively superior in wear resistance, and to output an excellent reduction ratio and high rotational torque, compared to a reduction module composed of a general planetary gear. To provide.

It is still another object of the present invention to provide an automatic and manual dual use portable wireless terminal using a deceleration module to which a cycloid gear method is applied as an opening and closing device of a terminal.

In order to solve the above object, the present invention provides a folding portable wireless terminal having a main body and a sub body installed to be opened and closed automatically and manually at a predetermined angle by a predetermined opening and closing device on the main body. In one embodiment, the opening and closing device includes a driving motor driven by a user's button operation and a terminal driven by a user's button operation, a deceleration module using a cycloid gear method that receives a rotational force of the driving motor, and a terminal receiving the rotational force of the reduction module. The opening and closing angle for opening and closing the automatic or manual is set, characterized in that it comprises a hinge module for applying a preload at the maximum opening and closing position of the terminal.

More specifically, the deceleration module according to the present invention is installed to extend with the drive motor and the hollow module housing is formed in the longitudinal direction on the inner circumferential surface, the hollow module housing, the housing is accommodated in the module housing and the rotating shaft of the drive motor A fixed shaft having a coaxial shaft and receiving rotational force is formed on one side, and on the other side, an eccentric disk formed to have an eccentric shaft different from the rotating shaft, and an eccentric shaft of the eccentric disk are inserted to rotate while drawing an inscribed circle. A predetermined length that is formed between the cyclic rod formed with a circular hole, and the plurality of curved grooves formed on the inner circumferential surface of the module housing and the plurality of curved grooves formed on the outer circumferential surface of the cycloid disk to support rotation of the cycloid disk. Roller and the rotational force of the cycloid disc Receiving by the imide structure is characterized in that it comprises a rotary disc for delivering the hinge module.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Although the present invention illustrates and describes a folder type terminal, other terminals that are opened and closed at a predetermined angle on the main body, such as flip type terminals, flip-up type terminals, and foldable PDAs It can be applied to various folding terminals such as notebook computers.

1 is a perspective view of an automatic and manual folding portable wireless terminal 100 according to the present invention, which is composed of a main body 110, which is a main body, and a folder 120, which is a sub body installed to be opened and closed on the main body. . The main body 110 is provided with a keypad assembly 111 having a plurality of key buttons to assist the user in entering data. The keypad assembly 111 may additionally include a navigation keypad. Under the keypad assembly 111, a microphone device 112 for transmitting a voice to the other party is installed. In addition, a button 115 may be installed on one side of the main body 110 to automatically open the A sub-axis on the main body.

The folder 120 is provided with a display device 121 for outputting data or other information input by the keypad assembly 110. Preferably, the display device 121 may be installed with a color wide LCD module. More preferably, a touch screen LCD may be installed to perform a data input function together. The speakerphone device 122 capable of receiving a voice of the other party is installed on the display device.

Thereafter, an opening and closing device (10 of FIG. 2) connecting the main body 110 and the folder 120 is installed at a coupling portion of the main body 110 and the folder 120. In this drawing, the center hinge arm 123 formed in the folder 120 is coupled while being interposed between the side hinge arms 113 formed on both sides of the main body 110. In this case, the opening and closing device 10 according to the present invention may be installed in the center hinge arm 123 and the side hinge arm 113.

Opening and closing device according to the present invention to be described later is a drive motor, a reduction module for increasing the rotational force of the drive motor and reducing the number of rotations, and the opening and closing angle for opening and closing the terminal automatically or manually by receiving the rotational force of the reduction module It is set and consists of a hinge module for applying a preload at the maximum opening and closing position of the terminal.

In this case, the driving motor and the deceleration module may be fixedly installed at any one of the main body or the sub body of the terminal, and the hinge module shearing the rotational force of the deceleration module may be fixedly installed at the rest of the main body or the sub body. have.

In this figure, the drive motor and the reduction module are installed on the center hinge arm of the folder, and the hinge module is installed on the side hinge arm of the main body.

FIG. 2 is an exploded perspective view illustrating an automatic and manual combined switching device applied to the terminal of FIG. 1 according to the present invention, and FIG. 3 illustrates a state in which a driving motor, a deceleration module, and a hinge module of the switching device according to the present invention are coupled to each other. The combined perspective view shown.

The reduction module according to the present invention has a relatively excellent reduction ratio even when installed in a small number of stages, and applies a cycloidal gear (cycloidal gear) method that can output a high rotational torque. The cycloid gear method is a method using a curve that is drawn at a point on the circumference when rolling a circle while circumscribed or inscribed a predetermined circumference.

In addition, the speed reduction module shown in the present invention adopts a two-stage method using two cycloid disks, but may be configured in one or multiple stages. In the description of the drawings, a sideloid disk installed first will be described. Finally, the rotating disk that delivers power to the hinge module has a second rotating disk installed in advance.

The reduction module according to the present invention is installed to extend with the drive motor 20, the hollow module housing 40 is formed with a plurality of curved grooves 41 in the longitudinal direction on the inner peripheral surface, and the module housing 40 A fixed shaft 31 which is accommodated in the rotation shaft 21 of the driving motor 20 and receives a rotational force is formed on one side thereof, and on the other side, the eccentric shaft 32 which is different from the rotation shaft 21. Cycroid formed with a circular eccentric shaft rotation hole 51 is formed so that the eccentric disk 30 and the eccentric shaft 32 of the eccentric disk 30 is inserted to rotate while inscribed in a certain circle. The cycloid disk is interposed between the disk 50 and the plurality of curved grooves 62 formed on the inner peripheral surface of the module housing 40 and the plurality of curved grooves 52 formed on the outer peripheral surface of the cycloid disk 50. Roll of constant length to support rotation of 60 And a rotating disk 70 'which receives the rotational force of the cycloid disk 50 by a predetermined guide structure and transmits it to the hinge module.

In addition, between the eccentric disk 30 and the drive motor 20, a housing connector 22 which supports the drive motor 20 and fixes the module housing 40 on the drive motor 20 is further included. Can be installed. At this time, the rotation shaft 21 of the drive motor 20 is penetrated through the connector 22 and then fixed to the fixed shaft 31 of the eccentric disk 30 so that the eccentric disk when the drive motor 20 rotates 30 also rotates together. At this time, the eccentric shaft 32 protruding on the other side of the eccentric disk 30 is also eccentrically rotated together. In this case, a seat bearing 11 may be further installed between the eccentric disk 30 and the cycloid disk 50 to minimize frictional force.

In addition, the diameter of the eccentric shaft rotation hole 51 of the cycloid disk 50 is larger than the diameter of the eccentric shaft 32 so that the eccentric shaft 32 of the eccentric disk 50 can perform the eccentric motion. It is formed to.

The predetermined guide structure receiving the rotational force of the cycloid disk 53 and transmitting it to the hinge module includes at least one hole 53 formed on the surface of the cycloid disk 50 and the hole 53. It consists of at least one projection 72 'formed on the face of the rotating disk 70' for insertion. Preferably, the holes 53 may be arranged in a circular shape around the eccentric shaft rotation hole 51 of the cycloid disk 50, and the projection 72 'of the rotating disk 70'. It may also be formed in a position corresponding to the holes 53. Also in this case, a predetermined bearing (15 in FIG. 6) for minimizing frictional force between the projection of the rotating disk 70 'and the hole 53 of the cycloid disk 50 into which the projection 72' is inserted. This is posted. More preferably oil bearings can be provided (shown in FIG. 6). In addition, when the cycloid disk 50 rotates, the diameter of the hole 53 of the cycloid disk 50 is the rotation disk 70 'so that the rotational force can be smoothly transmitted to the rotating disk 70'. It is formed to be at least larger than the diameter of the projection (72 ') formed in. The fixed shaft 71 ′ of the rotating disk 70 ′ is formed in the center of the rotating disk 70 ′ because it receives the rotational force of the cycloid disk 50 and transmits it to the hinge module.

Although the above-described deceleration module has described a configuration having a single stage of the cycloid disk 50, the plurality of cycloid disks 50, 50 ', the rotating disks 70, 70' and the rollers 80, 80 ' It can be formed in multiple stages by alternating. In this figure, it comprised two steps.

Accordingly, another eccentric shaft 71 may be formed on the other side of the rotating disk 70 coupled with the cycloid disk 50, and the eccentric shaft 71 is the center of the other cycloid disk 50 ′. It is inserted into the eccentric shaft rotation hole 51 'formed in the eccentric motion. In this case, the fixed shaft 71 'formed on the other side of the other rotating disk 70' may be shaped in the center of the other rotating disk 70 '. For example, when two or more stages of the cycloid disk are applied, each rotating disk installed in the middle has an eccentric shaft on the other side, and has a fixed shaft formed at the center only on the other side of the rotating disk.

After storing all the above-mentioned components, the disk-shaped cap 12 is finally fixedly installed on the module housing 40. In this case, the fixed shaft 71 'of the rotating disk 70' protrudes to the outside of the cap 12 so that the hinge cam 210 of the hinge module, which will be described later, is fixed to the fixed shaft 71 '. do. The disc cap 12 and the connector 22 may be fixed to both ends of the module housing 40 by various methods such as serration, spot welding, caulking, and the like.

The hinge module according to the present invention, which receives the rotational force of the reduction module configured as described above, has a predetermined bone portion 211 fixed to rotate together with the fixed shaft 71 'of the rotation disk 70' of the reduction module. It has a hinge cam 210 and the mountain 221 is engaged with the bone portion 211 of the hinge cam 210, it is installed to face the hinge cam 210, a predetermined length on the opposite side The hinge shaft 220 is formed so that the rotating shaft 222 and the rotating shaft 222 of the hinge shaft 220 is penetrated, the hinge housing 220 to the hinge shaft 220 to translate only in the axial direction ( 230 and a hinge spring 240 for pressing the hinge shaft 220 in the hinge cam 210 in the hinge housing 230.

The rotating shaft 222 of the hinge shaft 220 penetrates through the hinge spring 240 installed in the hinge housing 230, and then a part thereof protrudes out of the hinge housing 230 to have an E-ring ( 251). Preferably, a seat bearing 252 may be installed between the ear ring 251 and the hinge housing 230.

In addition, a guide slit 233 having a predetermined length is formed on the hinge housing 230 in a longitudinal direction, and the guide slit 233 is inserted into the guide slit 233 on the outer circumferential surface of the hinge shaft 220 to guide only translational movement in the axial direction. A protrusion 223 is formed.

4 is a partial cross-sectional view showing a state in which the opening and closing device 10 according to the present invention is installed on the terminal, and the drive motor 20 and the reduction module are fixedly installed on the center hinge arm 123 of the folder 120. The hinge module is extended with the deceleration module to receive the rotational force and is fixedly installed on the side hinge arm 113 of the main body. Accordingly, when a predetermined button (115 in FIG. 1) on the terminal is pressed, the driving motor 20 is rotated, and the rotational force and the rotational speed of the driving motor 20 are transmitted to the reduction module to provide a low rotational speed and a high rotational force. Is output to have. At this time, the rotation force output through the reduction module is large enough to allow the hinge cam 210 to rotate while retracting the hinge shaft 220 to the rear. That is, the rotational force transmitted by the deceleration module is set to a size such that at least the bone portion 211 of the hinge cam 210 retracts the hinge shaft 220 to ride over the mountain portion 221.

On the other hand, when the drive motor 20 is manually operated, since the deceleration module does not rotate the idle, the hinge cam 210 rearwards the hinge shaft 220 according to the force pressed by the user. It works while retreating.

5 is a partial cross-sectional view showing the configuration of the reduction module using the cycloid gear according to the present invention, Figure 6 is another embodiment of FIG.

As shown in FIG. 5, when the reduction module is coupled, the eccentric shaft 32 of the eccentric disk 30 is inserted into the eccentric shaft rotation hole 51 of the cycloid disk 50. In this case, the diameter of the eccentric shaft rotation hole 51 is larger than the diameter of the eccentric shaft 32 of the eccentric disk 30 so that the eccentric shaft 32 rotates while inscribed in the hole 51. do. At this time, the sike is supported by the roller 80 installed between the plurality of curved grooves 52 formed on the outer circumferential surface of the cycloid disk 50 and the curved groove 41 formed on the inner circumferential surface of the module housing 40. Lloyd's disc 50 will rotate itself. At this time, the projections 72 'of the rotating disk 70' are inserted into the plurality of holes 53 formed in the periphery of the eccentric shaft rotation hole 51 of the cycloid disk 50, whereby the cycloid disk The rotational force of 50 can be transmitted to the rotating disk 70 '.

In addition, as shown in FIG. 6, a predetermined bearing 15 is interposed between the hole 53 of the cycloid disk 50 and the projection 72 'of the rotating disk 70' to minimize frictional force. Also preferred.

Although not shown, detection means for stopping the driving motor by detecting the maximum opening position and the maximum closing position of the terminal by the control unit when the terminal is automatically opened or closed may be used. As the detection means, a photo sensor having a light emitting portion and a light receiving portion can be used. In addition, it is also possible to use a Hall sensor that operates by sensing the magnetic force of the magnet. In addition, an encoder provided on the rotating shaft of the drive motor to detect the rotation speed may be used, and other known detection means may be used.

Apparently, there are many ways to modify these embodiments while remaining within the scope of the claims. In other words, there may be many other ways in which the invention may be practiced without departing from the scope of the following claims.

The automatic and manual combined folding terminal according to the present invention can output a relatively excellent reduction ratio and high rotation torque than other reduction modules because it uses the cycloid gear method as the reduction module, and the installation space is small, thus miniaturizing the terminal. There is an effect that can contribute.

1 is a perspective view of an automatic and manual dual use portable wireless terminal according to the present invention;

Figure 2 is an exploded perspective view showing the automatic and manual combined opening and closing device applied to the terminal of Figure 1 according to the present invention;

3 is a perspective view showing a coupled state of the drive motor and the reduction module and the hinge module of the opening and closing device according to the present invention;

4 is a partial cross-sectional view showing a state in which the opening and closing device according to the present invention is installed on the terminal;

5 is a partial cross-sectional view showing the configuration of a reduction module using a cycloid gear according to the present invention; And

6 shows another embodiment of FIG. 6 in accordance with the present invention;

<Description of Major Symbols in Drawing>

20: drive motor 30: eccentric disk

40: module housing 50, 50 ': cycloid disc

70, 70 ': rotating disk 80: roller

210: hinge cam 220: hinge shaft

230: hinge housing 240: hinge spring

Claims (14)

In the folding portable wireless terminal having a main body and a sub body installed to be opened and closed automatically and manually at a predetermined angle by a predetermined opening and closing device on the main body, The opening and closing device, A driving motor driven by a power of the terminal by a user's button manipulation; A deceleration module using a cycloid gear method receiving the rotational force of the driving motor; The opening and closing angle for opening and closing the terminal automatically or manually is set by receiving the rotational force of the reduction module, and includes a hinge module for applying a preload at the maximum opening and closing position of the terminal. The hinge module, A hinge cam having a predetermined bone portion formed on a rotation axis of the reduction module to rotate together with the reduction module; A hinge shaft having a hill-shaped portion engaged with the valley portion of the hinge cam, the hinge shaft being disposed to face the hinge cam, and having a rotation axis of a predetermined length formed on an opposite surface thereof; A hinge spring for urging the hinge shaft in the hinge cam direction; And The hinge shaft and the hinge spring is sequentially received, the rotating shaft of the hinge shaft is fixed after passing through, the hinge shaft is characterized in that it comprises a hinge housing installed so as to linearly move only in the axial direction Foldable handheld wireless terminal. The method of claim 1, The reduction module having the drive motor and the hinge cam is fixed to any one of the main body or sub body of the terminal; Hinge shaft receiving the rotational force of the reduction module and the hinge housing in which the hinge spring is housed, characterized in that the automatic hand and portable folding portable terminal, characterized in that the fixed installation in place of the remaining portion of the main body or sub body. The method of claim 1, The deceleration module, A hollow module housing installed to extend with the driving motor and having a plurality of curved grooves formed in a longitudinal direction on an inner circumferential surface thereof; An eccentric disk accommodated in the module housing, the fixed shaft having a coaxial with a rotational shaft of the drive motor and receiving a rotational force on one side thereof, and having an eccentric shaft different from the rotational shaft on the other side; A cycloid disk having a circular eccentric shaft rotation hole so that the eccentric shaft of the eccentric disk is inserted to rotate while inscribed in a circle; A roller having a predetermined length interposed between the plurality of curved grooves formed on the inner circumferential surface of the module housing and the plurality of curved grooves formed on the outer circumferential surface of the cycloid disk to support rotation of the cycloid disk; Automatic and manual folding portable wireless terminal, characterized in that it comprises a rotating disk for receiving the rotational force of the cycloid disk by a predetermined guide structure to deliver to the hinge module. The method of claim 3, wherein And a housing connector for supporting the drive motor and fixing the module housing on the drive motor between the eccentric disk and the drive motor. The method of claim 3, wherein Between the eccentric disk and the cycloid disk, the seat bearing for minimizing the friction force is further installed, characterized in that the automatic portable folding handheld terminal. The method of claim 3, wherein A predetermined guide structure for receiving the rotational force of the cycloidal disk and transmitting it to the hinge module is at least one hole formed on the surface of the cycloid disk and at least one formed on the surface of the rotating disk to be inserted into the hole Automatic and manual folding portable wireless terminal, characterized in that consisting of a projection. The method of claim 6, And a predetermined bearing is provided between the projection of the rotating disk and the hole of the cycloid disk into which the projection is inserted to minimize frictional force. delete The method of claim 1, The rotational force transmitted by the deceleration module is set to a size such that at least the bone portion of the hinge cam retracts the hinge shaft to ride over the mountain portion. The method of claim 1, The rotating shaft of the hinge shaft passes through a hinge spring installed in the hinge housing, and then part of the hinge shaft protrudes out of the hinge housing and is fixed by a seat bearing and an E-ring. terminal. The method of claim 1, A guide slit having a predetermined length is formed on the hinge housing in a longitudinal direction, and a guide protrusion is formed on the outer circumferential surface of the hinge shaft to be inserted into the guide slit to perform linear movement only in the axial direction. Portable wireless terminal. delete In the folding portable wireless terminal having a main body and a sub body installed to be opened and closed automatically and manually at a predetermined angle by a predetermined opening and closing device on the main body, The opening and closing device, A driving motor driven by a power of the terminal by a user's button manipulation; A hollow module housing installed to extend with the driving motor and having a plurality of curved grooves formed in a longitudinal direction on an inner circumferential surface thereof; An eccentric disc accommodated in the module housing, the fixed shaft having a coaxial axis with the rotational shaft of the drive motor and receiving a rotational force on one side thereof, and having an eccentric shaft different from the rotational shaft on the other side; A cycloid disk having a circular eccentric shaft rotation hole so that the eccentric shaft of the eccentric disk is inserted to rotate while inscribed in a circle; A roller having a predetermined length interposed between the plurality of curved grooves formed on the inner circumferential surface of the module housing and the plurality of curved grooves formed on the outer circumferential surface of the cycloid disk to support rotation of the cycloid disk; A rotating disk that receives the rotational force of the cycloid disk by a guide structure; A hinge cam having a predetermined bone portion fixed to rotate together with the rotating disk; A hinge shaft having a hill-shaped portion engaged with the valley portion of the hinge cam, the hinge shaft being disposed to face the hinge cam, and having a rotation axis of a predetermined length formed on an opposite surface thereof; A hinge housing installed to penetrate the rotating shaft of the hinge shaft and allowing the hinge shaft to linearly move only in the axial direction; And And a hinge spring for urging the hinge shaft in the hinge cam direction in the hinge housing. The method of claim 13, The rotating force transmitted to the hinge cam by the rotating disk is set to a size that at least the bone portion of the hinge cam retracts the hinge shaft to ride over the mountain portion.