KR101210540B1 - Hinge device of folding type mobile phone - Google Patents

Abstract

According to an exemplary embodiment of the present invention, a folding-type hinge device for a portable terminal includes a first body having a first display unit and a second body having a second display unit and rotatably connected to the first body. In addition, when the first and second bodies are opened, the first and second display units are applied to a folding type mobile terminal having the same plane. I) A support plate of the first body supporting the first display unit and the A pair of hinge arms connected in parallel to the support plate of the second body supporting the second display unit, and ii) at least one through hole through which the flexible printed circuit can pass, disposed between the hinge arms A connecting arm which is configured at both ends of each of the hinge arms, and is disposed inside both ends of the connecting arm and is connected to the first and second bodies through the connecting arm. It may include a hinge assembly to form a central axis of rotation.

Description

Folding device hinge device for mobile device {HINGE DEVICE OF FOLDING TYPE MOBILE PHONE}

An exemplary embodiment of the present invention relates to a folding type mobile terminal, and more particularly, to a folding type hinge device for opening and closing a cover by rotating one of a cover and a main body in one direction. It is about.

In general, in order to use services such as broadcasting and communication wirelessly while moving in a place that is not a fixed location, mobile terminals such as mobile phones, PDAs, notebook computers, and DMB phones are frequently used.

In the portable terminal as described above, various methods are applied to open and close the cover with respect to the main body, and when divided into two, the mobile terminal can be classified into a folding method, a sliding method, and a swing method.

Among these, in the folding method, opening and closing operation of the cover is performed by rotating the cover of the portable terminal in the vertical direction with respect to the main body. The folding method of the cover is one of the methods mainly applied to a mobile terminal because of various advantages such as easy use, less trouble, and a stylish design.

The folding-type portable terminal as described above is opened and closed operation of the cover through a hinge device, such a hinge device is manufactured as a variety of structures around each manufacturer, such as employing a cam and a spring or employing a gear.

Meanwhile, recently, when a cover is opened in a folding manner so that multimedia services such as video, DMB, games, and the Internet can be used through a large display, the display unit of the cover and the display unit of the main body can be merged into one. I'm working on development.

Exemplary embodiments of the present invention have a simple structure and can increase the size of the display unit of the main body and the display unit of the cover, and when the cover and the main body of the hinge device for a folding-type portable terminal to be combined to a large screen when the cover is opened. To provide.

In addition, an exemplary embodiment of the present invention is to provide a folding-type hinge device for a portable terminal that is not exposed to the outside when the cover and the display unit of the main body is combined in a large screen.

To this end, the folding-type hinge device for a mobile terminal according to an exemplary embodiment of the present invention includes a first body having a first display unit and a second body rotatably connected to the first body having a second display unit. And being applied to a folding-type portable terminal in which the first and second display units form the same plane when the first and second bodies are opened, iii) a support plate of the first body supporting the first display unit. And a pair of hinge arms connected in parallel to a support plate of the second body supporting the second display unit, and ii) at least one through hole through which the flexible printed circuit can pass, between the hinge arms. A connecting arm disposed at the both ends of the hinge arm and disposed inside both ends of the hinge arm, the first and second connecting arms being disposed inside the both ends of the hinge arm. Rotation of the central body 2 may include a hinge assembly which forms the axis.

Further, in the folding type hinge device for a portable terminal, each hinge arm may include a support for supporting the connection arm and guiding a relative rotation with the connection arm.

Further, in the folding type hinge device for a portable terminal, each hinge arm may be formed with a connection hole connected to a passage hole of the connection arm.

In addition, in the folding-type hinge device for a portable terminal, mounting spaces for mounting the hinge assembly may be formed at both end sides, and the through holes may be formed between the both ends.

In addition, the folding type hinge device for a portable terminal may be configured in a portable terminal in which the first and second display units are respectively exposed to the outside while the first and second bodies face each other and are closed.

In addition, the folding-type hinge device for a portable terminal may rotate the first and second bodies by 90 and 180 degrees, respectively, by the hinge assembly.

In addition, in the folding-type hinge device for a portable terminal, when the first and second bodies are opened and closed, the hinge assembly is any one of a central axis of rotation of the first and second bodies through the hinge arm. It can provide elastic force to the.

In addition, the folding-type hinge device for a portable terminal may be embedded within a thickness range of the first and second bodies, and may be covered by the support plate when the first and second bodies are opened 180 degrees.

In addition, the folding type hinge device for a portable terminal may be configured in a support plate for supporting each display unit of the first and second bodies.

In addition, in the folding-type hinge device for a portable terminal, the hinge assembly is fixed to both end sides of the hinge arms, is disposed inside both end sides of the connection arms, and the first cam part is integrally formed at one end. A movable cam having a hinge axis, a second cam portion movably mounted in the longitudinal direction of the connecting arm and in cam contact with the first cam portion, and disposed inside both end sides of the connecting arm and moving; At least one spring member that exerts a resilience force to the cam may include.

Further, in the folding device hinge device, the hinge shafts may be arranged as a pair inside both ends of the connection arm.

In addition, in the folding device hinge device, the mobile cam may be integrally formed with a pair of second cams corresponding to the hinge axis.

In addition, in the folding-type hinge device for a portable terminal, the hinge shaft is mounted to both ends of the hinge arm through a fixing pin, and the fixing pin is coupled to both ends of the hinge arm and fastened to the other end of the hinge shaft. Can be.

Further, in the folding-type hinge device for a mobile terminal, first pinholes to which the fixing pins can be inserted are formed at both end sides of the hinge arm, and the fixing shaft can be fitted to the other end of the hinge shaft. The second pinhole may be formed.

Further, in the folding type hinge device for a portable terminal, the first and second cam portions form an interlocking portion and a valley portion, and when the first and second bodies are opened and closed, Preload by the spring member can be provided.

According to the exemplary embodiment of the present invention, when the first and second bodies are fully opened, the first and second display units may be combined into one to implement a large display, and thus, multimedia may be conveniently used.

In addition, in the present embodiment, since the support plate substantially supports the first and second display portions between the first and second bodies, the hinge device is not exposed to the outside when the display portions of the first and second bodies are combined into a large screen. As a result, the size of the first and second display units for the first and second bodies may be increased, and the reliability of the portable terminal may be further improved.

In addition, in the present embodiment, since the first and second bodies can be rotated by 90 degrees, the predetermined image can be comfortably viewed through either one of the first and second display units.

Further, in the present embodiment, since the preload of a predetermined torque can be sufficiently provided to these bodies while the first and second bodies are opened and closed, even if the position of the portable terminal is changed, the first and second bodies are rotated by their own weight. Can be prevented.

These drawings are for the purpose of describing an exemplary embodiment of the present invention, and therefore the technical idea of the present invention should not be construed as being limited to the accompanying drawings.
1 to 3 are perspective views illustrating a folding type mobile terminal to which a hinge device according to an exemplary embodiment of the present invention can be applied.
4 is a rear configuration diagram of FIG. 3.
5 is an exploded perspective view illustrating a folding portable terminal to which a hinge apparatus according to an exemplary embodiment of the present invention can be applied.
Fig. 6 is a coupling diagram illustrating a folding device hinge device according to an exemplary embodiment of the present invention.
7 is an exploded perspective view illustrating a hinge device for a portable terminal of a folding method according to an exemplary embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

In the drawings, the thickness is enlarged to clearly represent the layers and regions. In the drawings, for the convenience of explanation, the thicknesses of some layers and regions are exaggerated. Whenever a portion such as a layer, film, region, plate, or the like is referred to as being "on" or "on" another portion, it includes not only the case where it is "directly on" another portion but also the case where there is another portion in between.

In addition, since the sizes and thicknesses of the respective components shown in the drawings are arbitrarily shown for convenience of explanation, the present invention is not necessarily limited to those shown in the drawings.

In the following detailed description, the names of the components are divided into first, second, and the like in order to distinguish them because the names of the components are the same and are not necessarily limited thereto.

1 to 3 are perspective views showing a folding-type portable terminal to which a hinge device according to an exemplary embodiment of the present invention can be applied, and FIG. 4 is a rear configuration diagram of FIG. 3.

Referring to the drawings, the mobile terminal 1 to which the hinge device 100 is applied according to an exemplary embodiment of the present invention basically performs a mobile communication function such as voice / video call, message transmission, data input, DMB, For example, a mobile communication terminal that can use a multimedia information service such as a video, a game, and the Internet.

The portable terminal 1 includes a first body 2 and a second body 3, and the first and second bodies 2 and 3 may be opened and closed while rotating in the vertical direction or the left and right directions. It can also be configured as a general mobile phone in a folding manner.

Here, the first body 2 and the second body 3 of the portable terminal 1 have a rectangular shape in which the length in the horizontal direction (length direction) is relatively longer than the length in the vertical direction (width direction) based on FIG. 3. Is made as a body.

That is, in the embodiment, the portable terminal 1 opens and closes the first and second bodies 2 and 3 by rotating the first and second bodies 2 and 3 in the width direction.

However, the definition of such a direction is a relative meaning. Since the direction may vary depending on the position of the mobile terminal 1 with respect to the user, the reference direction is not necessarily limited to the reference direction of the present embodiment.

Meanwhile, the portable terminal 1 constitutes a first display unit 4 as a touch screen on the first body 2 based on the drawings, and the second display unit 5 as a touch screen also on the second body 3. ) Can be configured.

In other words, the first and second display units 4 and 5 may have the first and second bodies 2 and 3 closed as shown in FIG. 1 or the first and second bodies 2 and 3 as shown in FIG. 3) may be configured to be exposed to the outside in a partially open state while maintaining a certain angle.

Here, in the present exemplary embodiment, the first and second display units 4 and 5 are described as examples of the display window of the touch screen, but the present invention is not limited thereto, and the first and second display units 4 and 5 are not limited thereto. It will be appreciated that any one of these may be made of a liquid crystal display.

In this case, the first display unit 4 is disposed on the front surface of the first body 2 in the longitudinal direction to the top edge end, and the second display unit 5 is also in the longitudinal direction on the rear surface of the second body 3. Along the top edge. The first and second display units 4 and 5 display multimedia such as DMB, video, games, and the Internet.

The portable terminal 1 according to the exemplary embodiment of the present invention as described above will be further described later as in FIG. 2, with the first and second bodies 2 and 3 closed, as in FIG. 1. At least one of the first and second bodies 2 and 3 may be rotated by a predetermined angle (eg, 90 degrees) in one direction through the hinge device 100.

Here, the first and second bodies 2 and 3 may maintain a predetermined angle and display a predetermined image through the first and second display units 4 and 5. Therefore, in the present exemplary embodiment, a predetermined image may be conveniently viewed through one of the first and second display units 4 and 5.

In addition, as shown in FIG. 3, at least one of the first and second bodies 2 and 3 may have a predetermined angle in one direction through the hinge device 100, which will be described later. For example 180 degrees).

In the present embodiment, as shown in FIG. 3, the first and second displays 2 and 3 are opened by 180 degrees so that the first and second displays 4 and 5 form the same plane and extend along the length direction. Can be combined.

In this case, the first display unit 4 of the first body 2 and the second display unit 5 of the second body 3 are combined into one through the interface control of the display driving module according to the known technology. Through the display, multimedia and the like can be conveniently used.

In this case, instead of driving the first display unit 4 and the second display unit 5 to one screen, the first and second display units 4 and 5 drive the respective information separately. It is also possible to conveniently enter or use multimedia such as games more conveniently.

Until now, the hinge device 100 according to an exemplary embodiment of the present invention has been applied to a mobile communication terminal capable of mobile communication as the mobile terminal 1, but is not limited thereto, but is not necessarily limited to a PDA, a PMP, and a smart phone. It can also be applied to portable electronic devices such as handheld PCs, MP3 / MP4 players, game consoles, netbooks, and notebook computers.

The portable electronic device may include a predetermined communication module such as a code division multiplexing access (CDMA) module, a Bluetooth module, an infrared communication module (IrDA), a wired or wireless LAN card, and perform a multimedia play function such as a game item. It may be provided with a microprocessor.

5 is an exploded perspective view illustrating a folding portable terminal to which a hinge apparatus according to an exemplary embodiment of the present invention can be applied.

Referring to the drawings, the first and second bodies 2 and 3 of the portable terminal 1 to which the hinge device 100 can be applied according to the exemplary embodiment of the present invention are the first and second display units 4. And each case 6 for installing 5, and each support plate 7 capable of supporting the first and second display portions 4 and 5 together with the case 6.

These cases 6 and the support plate 7 is composed of the first and second bodies 2, 3 while being fastened to each other through fastening means such as bolts, and the hinge device 100 according to the present embodiment includes It can be configured on the support plate 7 at the connection end side of the second bodies 2, 3.

That is, the hinge device 100 according to the present embodiment is connected to the mounting ends 8 of the grooves provided at the connection ends of the first and second bodies 2 and 3, that is, at the connection end sides of the respective support plates 7. As it is mounted, it is embedded within the thickness range of the first and second bodies 2, 3 and may be mounted on the mounting part 8 in the same plane as the support plate 7.

Hereinafter, the configuration of the folding-type mobile terminal hinge apparatus 100 according to the exemplary embodiment of the present invention as described above will be described in detail with reference to the drawings and the accompanying drawings.

The following drawings show the components of the hinge device 100 according to the present embodiment on the basis of a state in which the first and second bodies 2 and 3 of the portable terminal 1 are opened at 180 degrees.

6 is a combined perspective view illustrating a folding device hinge device according to an exemplary embodiment of the present invention, and FIG. 7 is a view illustrating a folding device hinge device according to an exemplary embodiment of the present invention. Exploded perspective view.

Referring to the drawings, the hinge device 100 according to an exemplary embodiment of the present invention basically includes a pair of hinge arms 10, a connecting arm 20, and a hinge assembly 30. If this is described for each configuration as follows.

In this embodiment, the hinge arm 10 is connected to each support plate 7 in the first and second bodies 2, 3, and arranged in parallel to the mounting part 8 of the support plate 7. Can be.

Each of these hinge arms 10 is in the form of an arm with a set length, and includes a support 11 for supporting the connecting arm 20 which will be described further below and for guiding relative rotation with the connecting arm 20. Doing.

Here, the support portion 11 is formed with a round guide surface 13 for guiding a relative rotation with the connecting arm 20 between both ends of the hinge arm (10).

In addition, both end sides of the hinge arm 10 having the support 11 therebetween may be fastened to each support plate 7 of the first and second bodies 2 and 3 through a fastening means such as a bolt B. have.

To this end, fastening protrusions 14 to which bolts B can be coupled are integrally formed on both ends of the hinge arm 10, and a plurality of bolts B can be fastened to the fastening protrusions 14. Bolt holes 15 are formed.

In addition, circular mounting holes 16 are formed at both ends of the hinge arm 10 along the longitudinal direction. The mounting holes 16 will be further mentioned later.

In this embodiment, the connecting arm 20 is supported on the support 11 of each hinge arm 10, and can be arranged between these hinge arms 10.

The connecting arm 20 has a hinge assembly 30 at both ends thereof, which will be described later. For this purpose, the connecting arms 20 form mounting spaces 21 for mounting the hinge assembly 30, respectively.

The connecting arm 20 forms at least one passage hole 25 through which the flexible printed circuit 23 can pass. The through holes 25 may be formed in pairs between the mounting spaces 21 on both sides of the connecting arm 20.

Here, the flexible printed circuit 23 is for electrically connecting the electrical and electronic components, which are respectively configured to the first and second bodies 2, 3 of the portable terminal 1, a flexible PCB (FPCB), MCX (Micro Coaxial Cable) and the like.

On the other hand, each of the hinge arms 10 is formed with a pair of connecting holes 17 connected to the passage holes 25 of the connecting arms 20 to allow the flexible printed circuit 23 to pass therethrough.

In the present embodiment, the hinge assembly 30 is for rotating the bodies 2, 3 at 90 and 180 degrees, respectively, with the first and second bodies 2, 3 facing each other and closed. will be.

The hinge assembly 30 is configured at both end sides of each hinge arm 10, and is disposed at both ends of the connection arm 20, and is configured at both end sides of the hinge arm 10, and the connection arm 20. It can be arranged in each mounting space 21 of.

In this case, the hinge assembly 30 forms the rotation center axis A of the first and second bodies 2 and 3, respectively, as shown in FIG. An elastic force is provided to either one of the central axes A of rotation of the first and second bodies 2, 3 via the hinge arm 10 when the first and second bodies 2, 3 open and close.

6 and 7 and the above-described drawings, the hinge assembly 30 according to the present embodiment basically includes a hinge shaft 41, a moving cam 61, and a spring member 81. Doing.

In this embodiment, the hinge axis 41 is for forming the rotation center axis A (see FIG. 4) of the first and second bodies 2 and 3 as mentioned above, and each hinge arm 10. It is fixedly installed at both ends of the side.

The hinge shaft 41 is mounted along the longitudinal direction of the hinge arm 10 at both ends of each hinge arm 10, and the mounting hole 16 of the hinge arm 10 is provided through a fixing pin 43. It can be fixedly installed on.

The fixing pin 43 is a pair of pins are integrally connected, may be coupled to both ends of the hinge arm 10 and fastened to one end of the hinge shaft 41.

To this end, a pair of first pin holes 19 into which the fixing pin 43 is fitted is formed at both ends of the hinge arm 10, and at one end of the hinge shaft 41, the first pin holes 19 are formed. A pair of second pin holes 45 through which the fixing pin 43 passed through is fastened is formed.

That is, the hinge shaft 41 is fitted into the mounting hole 16 of the hinge arm 10, and the fixing pin 43 is coupled to the first pin hole 19 and simultaneously coupled to the second pin hole 45. It can be fastened to both end sides of the hinge arm (10).

The hinge shaft 41 may be disposed in the mounting space 21 of the connecting arm 20 in a state of being fixed to both end sides of the hinge arm 10.

At the other end of the hinge shaft 41 as described above, a first cam portion 47 consisting of a ridge and a valley is formed integrally along the circumferential direction. That is, since the hinge shaft 41 integrally forms the first cam portion 47, the hinge shaft 41 also functions as an actuating cam commonly referred to in the art.

Since these hinge shafts 41 are respectively configured on both end sides of each hinge arm 10, they are arranged as a pair inside both mounting spaces 21 of the connecting arm 20. As shown in FIG.

In the present embodiment, the movable cam 61 is commonly referred to in the art as a sliding cam, and corresponds to the hinge axis 41 in the mounting space 21 of the connecting arm 20 of the connecting arm 20. It is installed so that linear reciprocation is possible along the longitudinal direction.

The movable cam 61 includes a second cam portion 63 in cam contact with the first cam portion 47 of the hinge shaft 41. The second cam portion 63 consists of a ridge and a valley along the circumferential direction.

The mobile cam 61 is disposed inside the mounting space 21 of the connecting arm 20, and integrally forms a pair of second cam portions 63 corresponding to the pair of hinge shafts 41. .

On the other hand, since the first cam portion 47 of the hinge shaft 41 and the second cam portion 63 of the movable cam 61 as described above form a mountain-shaped portion and a bone-shaped portion that mesh with each other, the first and second bodies Upon opening and closing of (2, 3), these bodies (2, 3) can be provided with a preload by a spring member (81) which will be described further later.

In the above, the spring member 81 is mounted in the mounting space 21 of the connecting arm 20 in correspondence with the movable cam 61, and serves to exert elastic force with the movable cam 61.

The spring member 81 is provided as a plurality, for example three, and is formed as a spirally wound compression coil spring.

In this case, the spring member 81 is installed between the inner wall of the mounting space 21 and the moving cam 61, one end is supported on the inner wall surface, the other end is supported on the moving cam 61. do.

As described above, the hinge assembly 30 according to the present embodiment is composed of four groups, and is formed at both end sides of each hinge arm 10, and the arm inside the mounting space 21 of the connecting arm 20. Along the longitudinal direction of the hinge shaft 41, the moving cam 61 and the spring member 81 may be sequentially configured.

This hinge assembly 30 is arranged in a straight line along the pair of hinge arms 10 and has a central axis of rotation A of the first and second bodies 2 and 3 as mentioned above (A: FIGS. 4 and 6). Reference).

Reference numeral 91 not described in the drawings denotes a support bracket for supporting the hinge shaft 41.

Hereinafter, the operation of the folding-type mobile terminal hinge device 100 according to the exemplary embodiment of the present invention configured as described above will be described in detail with reference to the drawings disclosed above.

First, in the present embodiment, as shown in FIG. 1, a closed state in which the first and second bodies 2 and 3 of the portable terminal 1 face each other (0 degrees, hereinafter referred to as "first mode" for convenience). ) As the initial starting point.

In the first mode, the first display unit 4 is exposed to the outside of the front surface of the first body 2, and the second display unit 5 is exposed to the outside of the rear surface of the second body 3. .

In the hinge assembly 30, the first cam portion 47 of the hinge shaft 41 and the second cam portion 63 of the movable cam 61 are in a state where the hill portion and the valley portion are engaged with each other, and the spring member 81 is engaged. ) May maintain the original shape while the elastic force is not applied or compressed to a relatively small size to exert a corresponding elastic force to the mobile cam (61).

In this case, in the first mode, the first cam portion 47 of the hinge shaft 41 and the second cam portion 63 of the moving cam 61 come into contact with the cam as a set cam follow, so that the spring force of the spring member 81 is reduced. As a result, a preload of a predetermined torque is provided in the closing direction of the first and second bodies 2 and 3.

The preload acts on the hinge shaft 41 of the hinge assembly 30 as a rotational torque of a predetermined rotation angle range of the first and second bodies 2, 3, thereby causing the first and second bodies 2 And 3), it is possible to prevent the first and second bodies 2, 3 from being rotated by their own weight even if the position of the portable terminal is changed by providing sufficient preload.

In the first mode as described above, the user rotates at least one of the first and second bodies 2 and 3 at a predetermined interval in an upward direction with reference to the drawings (hereinafter referred to as "second mode for convenience"). ").

That is, any one of the first and the second body (2, 3) is rotated a predetermined section of the entire rotation section in the upward direction about the rotation center axis (A).

Then, the first cam portion 47 of the hinge shaft 41 corresponding to one of the rotational center axes A of the first and second bodies 2 and 3 is connected to the second cam portion of the moving cam 61. Slip in a predetermined follow-up section 63, thereby compressing the spring member 81 while moving the cam (61).

Here, the elastic restoring force of the spring member 81 is transmitted to the first cam portion 47 of the hinge shaft 41 through the moving cam 61.

In this state, the user applies a slightly more upward force on either of the first and second bodies 2, 3.

Then, the elastic restoring force of the spring member 81 transmitted to the first cam portion 47 of the hinge shaft 41 is transmitted to the hinge arm 10 of any one of the first and second bodies 2 and 3. The hinge arm 10 rotates automatically by the elastic restoring force of the spring member 81, and the first and second bodies 2 and 3 rotate at a predetermined angle (90 degrees) in the remaining sections of the entire rotation section. Is opened.

In this case, the first body 2 exposes the first display unit 4 to the front side, and the second body 3 exposes the second display unit 5 to the back side, and the bodies 2 and 3 are exposed. Maintains a predetermined angle and can display a predetermined image through the first and second display units 4 and 5.

Therefore, in the present embodiment, a predetermined image is conveniently viewed through either one of the first and second display units 4 and 5 while the first and second bodies 2 and 3 maintain a 90 degree angle. You can do it.

In the second mode, the first cam portion 47 of the hinge shaft 41 and the second cam portion 63 of the movable cam 61 come into contact with each other by cam contact, and thus, the first cam portion 47 is moved by the elastic force of the spring member 81. And a preload of a predetermined torque in the open direction of the second bodies 2, 3.

In this embodiment, in the second mode as described above, as shown in FIG. 3, one of the first and second bodies 2 and 3 may be further rotated by 90 degrees to maintain a final rotation angle of 180 degrees (hereinafter, for convenience. Called "third mode").

Since the 180 degree rotation operation of the first and second bodies 2 and 3 is the same as in the second mode, a detailed description thereof will be omitted.

Therefore, in the present exemplary embodiment, the first and second bodies 2 and 3 are fully opened at 180 degrees, and the first display unit 4 of the first body 2 and the second display unit of the second body 3 ( 5) are coplanar and can be merged into one along the longitudinal direction.

Here, the hinge device 100 according to the present embodiment is configured on the support plate 7 which substantially supports the first and second display units 4 and 5 between the first and second bodies 2 and 3. As the first and second bodies 2 and 3 are embedded within the thickness range of the first and second bodies 2 and 3, the first and second bodies 2 and 3 may be covered without being exposed to the outside by the support plate 7. have.

As a result, in the present embodiment, when the display units 4 and 5 of the first and second bodies 2 and 3 are joined to a large screen, the hinge device 100 is not exposed to the outside. The sizes of the first and second display units 4 and 5 with respect to 2 and 3 can be further increased, and the reliability of the portable terminal 1 can be further improved.

Similarly, in the above-described third mode, the first and second bodies 2 and 3 have the first cam part 47 and the second cam part 63 of the moving cam 61 as the cam follows the cam contact as the set cam follow. And a preload of a predetermined torque in the open direction of the second bodies 2, 3.

As described above, according to the folding device hinge device 100 according to the exemplary embodiment of the present invention, the first and second display units when the first and second bodies 2 and 3 are fully opened. By combining (4, 5) into one, a large-screen display can be realized, so that multimedia and the like can be conveniently used.

In addition, in the present embodiment, since the first and second bodies 2 and 3 can be rotated by 90 degrees, one of the first and second display units 4 and 5 can comfortably view a predetermined image. You may.

In the present embodiment, since the preload of the predetermined torque can be sufficiently provided to these bodies in the state where the first and second bodies 2 and 3 are opened and closed, even if the position of the portable terminal 1 is changed, It is possible to prevent the first and second bodies 2 and 3 from being rotated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, And it goes without saying that the invention belongs to the scope of the invention.

1 ... mobile terminal 2 ... first body
3 ... 2nd body 4 ... 1st display part
5 ... 2nd display part 6 ... Case
7. Support plate 8 ... Mounting part
10 ... connecting arm 11 ... support
16 ... Mounting hole 20 ... Connecting arm
21 ... Mounting space 23 ... Flexible printed circuit
30 ... hinge assembly 41 ... hinge shaft
47. First cam part 61 ... Moving cam
63. 2nd cam part 81 ... spring member

Claims (13)

A first body having a first display unit, and a second body having a second display unit and rotatably connected to the first body, wherein the first and second displays are opened when the first and second bodies are opened. As the addition is applied to the folding-type portable terminal forming the same plane,
A pair of hinge arms connected in parallel to a support plate of a first body supporting the first display unit and a support plate of a second body supporting the second display unit;
A connection arm having at least one passage hole through which the flexible printed circuit can pass, the connection arm disposed between the hinge arms; And
A hinge assembly configured at both end sides of each hinge arm and disposed inside both ends of the connection arm and defining a central axis of rotation of the first and second bodies via the connection arm,
The connecting arm has a mounting space for mounting the hinge assembly is formed on each side of the both ends, the hinge of the folding-type portable terminal, the passage hole is formed between the both ends.
The method according to claim 1,
Each of the hinge arms,
And a support for supporting the connection arm and guiding a relative rotation with the connection arm. The method according to claim 1,
Each of the hinge arms,
A hinge device for a folding type mobile terminal having a connection hole which can be connected to a passage hole of the connection arm.
delete The method according to claim 1,
The hinge device,
In a state in which the first and second bodies face each other and are closed, the first and second bodies are configured in a portable terminal exposed to the outside, respectively.
The hinge device for a folding type mobile terminal which rotates the first and second bodies by 90 and 180 degrees, respectively, by the hinge assembly.
The method according to claim 1,
When opening and closing the first and second body,
The hinge assembly is a folding device for a mobile terminal of the folding method to provide an elastic force to any one of the central axis of rotation of the first and second body through the hinge arm.
The method according to claim 1,
The hinge device,
A hinge device for a folding type portable terminal embedded in the thickness range of the first and second bodies, and covered by the support plate when the first and second bodies are opened 180 degrees.
The method of claim 7, wherein
The hinge device is a hinge type device for a portable terminal of the folding type configured on the support plate for supporting each display unit of the first and second body.
The method according to claim 1,
The hinge assembly,
A hinge shaft fixed to both end sides of each of the hinge arms, disposed inside both end sides of the connecting arm, and having a first cam portion integrally formed at one end thereof;
A movable cam mounted to the inside of the connecting arm so as to be movable along the longitudinal direction and having a second cam portion in cam contact with the first cam portion;
At least one spring member disposed inside both end sides of the connecting arm and exerting an elastic force with the movable cam;
Folding device for a hinge device for a mobile terminal comprising a.
10. The method of claim 9,
The hinge shaft is disposed as a pair inside both end sides of the connecting arm, and the movable cam is a folding type hinge device for a portable terminal in which a pair of second cam portions are formed integrally with the hinge shaft.
10. The method of claim 9,
The hinge shaft is mounted to both ends of the hinge arm via a fixing pin, the fixing pin is coupled to both ends of the hinge arm and hinged for the mobile terminal of the folding method coupled to the other end of the hinge axis.
12. The method of claim 11,
Both end sides of the hinge arm are provided with first pin holes into which the fixing pins can be fitted.
The hinge shaft is a hinge device for a folding-type portable terminal in which a second pin hole through which the fixing pin can be inserted is formed at the other end.
10. The method of claim 9,
The first and second cams form a ridge and a valley, which interlock with each other, and provide a preload by the spring member to these bodies when opening and closing the first and second bodies. Hinge device.

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