KR101138539B1 - Hinge apparatus for mobile phone - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable communication device configured to extend and rotate a terminal in a portable terminal, and includes a portable device including a first and a second housing and a hinge device rotatably coupling the first and second housings. A terminal, comprising: a button unit for rotating or slidingly moving, a hinge module for extending and rotating the second housing from the first housing as the button unit is slidably moved, and the rotation of the second housing at a predetermined angle. It is characterized by consisting of a hinge stopper for limiting, thereby improving the ease of use when using the terminal as a remote control and other additional functions, as well as video from any location using the wide screen of the communication device There is an advantage that can facilitate viewing.

Mobile terminal, first and second housing, button portion, hinge module, hinge stopper portion.

Description

Hinge device for mobile terminal {HINGE APPARATUS FOR MOBILE PHONE}

1 is a perspective view showing a state in which a folder is opened and closed in a conventional foldable portable terminal.

Figure 2 is an exploded perspective view showing a hinge device in a conventional foldable portable terminal.

Figure 3 is a perspective view showing a coupling state of a conventional hinge device.

Figure 4 is an exploded perspective view showing the configuration of the hinge device of a mobile terminal according to the first embodiment of the present invention.

5 is an exploded perspective view showing a coupling state of a hinge device of a portable terminal according to a first embodiment of the present invention.

6 is a perspective view showing a state before opening and closing a second housing of a hinge device of a mobile terminal according to a first embodiment of the present invention in a first housing;

7 is a perspective view of the hinge device of FIG.

8 is a perspective view showing a state in which the second housing is opened by 150 degrees in the first housing in the hinge device of the mobile terminal according to the first embodiment of the present invention.

9 is a perspective view of the hinge device of FIG.

10 is a perspective view showing a state in which the second housing is opened 180 degrees from the first housing in the hinge device of the mobile terminal according to the first embodiment of the present invention;

11 is a perspective view of the hinge device of FIG.

12 is an exploded perspective view showing the configuration of a hinge device of a portable terminal according to a second embodiment of the present invention.

13 is an exploded perspective view showing a hinge locking device of the hinge device of a portable terminal according to a second embodiment of the present invention;

14 is an exploded perspective view showing the inside of the hinge locking device of the hinge device of the portable terminal according to the second embodiment of the present invention;

15 is a perspective view illustrating a coupling state of a hinge device of a portable terminal according to a second embodiment of the present invention;

16 is a perspective view showing a state before opening and closing a second housing of a hinge device of a mobile terminal according to a second embodiment of the present invention in a first housing;

Figure 17 is a side view of the hinge device of Figure 16;

18 is a perspective view showing a state in which the second housing is opened by 150 degrees in the first housing in the hinge apparatus of the mobile terminal according to the second embodiment of the present invention.

Figure 19 is a side view of the hinge device of Figure 18

20 is a side view illustrating an operating state of the hinge locking device of the hinge device of the portable terminal according to the second embodiment of the present invention;

FIG. 21 is a perspective view illustrating a state in which the second housing is opened 180 degrees from the first housing in the hinge apparatus of the mobile terminal according to the second embodiment of the present invention; FIG.

FIG. 22 is a perspective view of the hinge device of FIG. 21; FIG.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal, and more particularly, to a hinge device of a portable terminal configured to extend and rotate the housing of the terminal in stages.

In general, the term “portable communication device” refers to a device that a user can carry and perform wireless communication with a counterpart. Such portable communication devices are referred to as HHP, CT-2 cellular phones, digital phones, PCS phones and PDAs, and are classified into various types in appearance. For example, wireless terminals are classified into bar-type, flip-type, or folder-type wireless terminals according to their appearance. The bar-type wireless terminal means that the single housing is configured as a bar-type, and the flip-type wireless terminal means that the flip or cover is rotatably configured by the hinge device in the bar-type housing. The terminal means that the folder is configured to be rotatably connected to the single bar-shaped housing by a hinge device and to be folded.

The above-mentioned conventional portable terminals essentially have an antenna device, a data input / output device, and a data transmission / reception device. Of course, the data input device is commonly used as a keypad for inputting data mainly by a finger pressing operation, a touch pad or a touch screen is also used.

In addition, the display function according to the data output device commonly uses a liquid crystal display (LCD).

Such flip-type or clamshell terminals have excellent sound sensitivity, and are currently in a generalized trend because they are advantageous for miniaturization and light weight of the main body.

As shown in FIG. 1, the conventional folding portable terminal 1 is coupled to the main body 2 and the folder 3 so as to be opened at a predetermined opening and closing angle by the hinge device 4.

The main body 2 is equipped with various key buttons 2a and a microphone device 2b, the folder 3 is provided with a liquid crystal display 3a and a speaker device 3b, both sides of the main body 2 The side hinge arm 2c is installed in it.

At the lower end of the folder 3, a center hinge arm 3c is interposed between the side hinge arms 2c of the main body 2 to rotatably couple the folder 3 to the main body 2. . The center hinge arm 3c is provided with a predetermined hinge device 4.

As shown in Figs. 2 and 3, the hinge device 4 is provided with a hinge shaft 4a and a hinge cam 4b each having a ridge and a valley, respectively, and the hinge shaft 4a and the hinge cam 4b. By accommodating the spring 5 in close contact with the hinge housing 4c, the folder 3 is opened and closed using the curved surface of the ridge portion and the valley portion and the elastic force of the spring 5.

At this time, as shown in FIG. 1, when the folder 3 is rotated in the range of about 0 ° to 150 ° from the main body 2, the folder 3 is rotated by a predetermined angle or more. Provides the force to open automatically when no more force is applied. The hinge device 4 then provides the stopping force of the folder at about 150 °.

In addition, in recent years, the mobile terminal 1 has a tendency to gradually increase the additional function of sending and receiving text messages or video transmission and reception in addition to the call function.

However, the hinge device of the conventional mobile terminal is convenient to call when the folder is opened and closed by about 150 ° from the main body, but when the terminal is used as a remote controller and other additional functions, the folder is not opened or closed by more than 150 °, which is inconvenient to use. There were a lot.

In addition, when watching a video using the terminal, the folder of the terminal obstructs the screen so that the entire screen cannot be seen, and the screen is not easily seen by light when the screen is tilted for viewing the video.

Accordingly, an object of the present invention is to provide a hinge device for a portable terminal configured to rotate the terminal in stages in the portable terminal.

Another object of the present invention is to provide a hinge device of a mobile terminal, which makes it easy to use the terminal by using a remote control and other additional functions by configuring a hinge device to rotate the terminal in stages in the mobile terminal. It is.

Still another object of the present invention is to provide a hinge device of a portable terminal that can be rotatably extended at an open angle according to a call usage of the portable terminal to facilitate watching a video.

In order to achieve the above object, a first embodiment of the present invention is a portable terminal comprising a hinge device for rotatably coupling a first housing, a second housing, and a first housing and a second housing,

A button unit which rotates or slides;

A hinge module extending and rotating the second housing from the first housing as the button unit slides; And

Characterized in that the hinge stopper portion for restricting the rotation of the second housing step by step at a predetermined angle.

In addition, in order to achieve the above object, a second embodiment of the present invention is a portable terminal comprising a hinge device for rotatably coupling a first housing, a second housing, and a first housing and a second housing,

A button unit rotated or pressed;

A hinge module extending and rotating the second housing from the first housing according to the pressing of the button unit; And

And a hinge locking device for constraining or releasing the rotation of the second housing step by step at a predetermined angle.

Hereinafter, with reference to the accompanying drawings will be described in detail the first preferred embodiment of the present invention.

As shown in FIG. 4, the hinge device 10 of the portable terminal includes a button unit 50, a hinge module 60, and a hinge stopper unit 70. The button unit 50 can rotate or slide. The first housing 20 is exposed to the outside so that the hinge module 60 moves the second housing 30 away from the first housing 20 by sliding the button unit 50. It is mounted in the center hinge arm 31 provided in the second housing 30 so as to be extended by forklift, and the hinge stopper part 70 gradually rotates the second housing 30 at a predetermined angle. It is mounted in the center hinge arm 31 so as to be limited to.

8 and 10, the center hinge arm 31 is coupled to one end of the second housing 30 so as to be coupled to a pair of side hinge arms 21 formed at both ends of the first housing 20. Protrudingly formed, the center hinge arm 31 is formed with an exposure hole 32 to expose the button portion 50 to the outside.

4 and 5, the hinge module 60 includes a shaft rod 61, a hinge shaft 62, a hinge cam 63, a hinge spring 64, and a hinge housing 65. The shaft rod 61 is formed to extend in the longitudinal direction so as to penetrate with the hinge shaft 62, the hinge cam 63 and the hinge spring 64, the central portion of the hinge shaft 62 A shaft hole 63a is formed in the shaft rod 61 so as to pass through the shaft rod 61, and one end of the hinge shaft 62 faces the cam side mount portion and the valley portion provided in the hinge cam 63, which will be described later. The shaft-side mount portion and the valley-shaped portion are formed to be seen, and the shaft-side mount portion and the valley portion are composed of a slanted portion and a steep steep portion with asymmetrical left and right, and the first end of the hinge shaft 62 at the tile end. Engaged with the side hinge arm 21 provided in the housing 20 The shaft 62a is formed to protrude, and the hinge cam 63 is placed to face the hinge shaft 62, and the shaft side mount portion and the valley portion in the direction of the axis A1 of the hinge shaft 62. Corresponding to each other, the cam-side mount portion and the valley portion are formed, and in accordance with the rotation of the second housing 30, the sliding movement in the direction of the axis (A1), the hinge spring 64 is the respective mountain portion And one end thereof is coupled to a fixing protrusion formed on the hinge cam 63 so as to be in sliding contact with the curved surface of the valley portion.

The hinge housing 65 accommodates the shaft rod 61, the hinge shaft 62, the hinge cam 63, and the hinge spring 64 sequentially, and receives the shaft 62b of the hinge shaft 62. It is provided in the center hinge arm 31 of the second housing 30 so as to protrude.

5 and 6, one end of the hinge housing 65 protrudes the shaft 62b of the hinge shaft 62 to the side hinge arm 21 of the first housing 20. Is coupled in the direction, the end of the hinge housing 65, the end of the shaft rod 61 is protruded to engage the snap ring 66 to the end of the rod 61, the stopper cam 72 to be described later It is intended to be combined with).

7, 9 and 11, the hinge stopper 70 is composed of a locker 71, a stopper cam 72, and an elastic means 73, the locker 71 is The button unit 50 is formed vertically in the longitudinal direction, and is provided below the button unit 50 so as to rotate together with the second housing 30 and slide in the direction of the axis A1. The stopper cam 72 guides and locks the locker 71 when the second housing 30 rotates, and moves the locker 71 by sliding the extension of the second housing 30. It is coupled to one end of the shaft rod 61 in the direction of the axis A1 so as to guide and rotate the guide.

9 and 11, the stopper cam 72 is recessed to be coupled to the locker 71, and guide means 74 guides and restrains the rotation of the locker 71. Is formed, and the guide means 74 is composed of first and second guide contact portions 74a and 74b.

8 and 9, the first guide contact portion 74a is in contact with the locker 71 that rotates with the second housing 30 to limit rotation of the second housing 30 at 150 degrees. It is.

10 and 11, the second guide contact portion 74b slides and moves the locker 71 in the direction of the axis A1 to guide and move away from the first guide contact portion 74a. The second guide contact portion 74b is formed at a position adjacent to the first guide contact portion 74a to limit the extended rotation of the second housing 30 at 180 degrees, and the second guide contact portion 74b is disposed in the direction of the axis A1. 1 It is formed to be stepped with the guide contact portion 74a.

The elastic means 73 consists of a coil spring.

The operation of the hinge device of the mobile terminal according to the first embodiment of the present invention having the above configuration will be described in more detail with reference to FIGS. 1 to 11.

As shown in FIG. 6, the terminal includes first and second housings 20 and 30.

As shown in FIG. 8, a pair of side hinge arms 21 are formed at both ends of the first housing 20, and the center is rotatably coupled to the side hinge arms 21 at the second housing 30. The hinge arm 31 protrudes.

In this state, as shown in FIG. 8, since the exposure hole 32 is formed in the center hinge arm 31 to expose the button portion 50 to the outside, the button portion 50 is exposed to the exposure hole 32. To be mounted exposed.

At this time, the center hinge arm 31 is provided with a hinge module 60 extending and rotating the second housing 30 from the first housing 20 in accordance with the sliding movement of the button unit 50. .

4 and 5, the hinge module 60 includes a hinge housing 65, a hinge shaft 62 in the hinge housing 65, and a shaft of the hinge shaft 62. The shaft rod 61 is penetrated through the hole 62a, and the hinge shaft 62 has a hinge cam 63 in which the shaft-side mount portion and the valley portion and the cam-side mount portion and the valley portion face each other. The hinge spring 64 is sequentially coupled to the fixing protrusion 63a formed on the hinge cam 63 in the direction (A1).

In this state, as shown in FIGS. 8 and 10, at one end of the hinge housing 65, the shaft 62b of the hinge shaft 62 protrudes and engages with the side hinge arm 21 of the first housing 20. do.

5 and 6, the tile end of the hinge housing 65 has one end of the shaft rod 61 protruding therefrom and fastening a snap ring 66 to the rod 61, and the protruding shaft. The stopper cam 72 is coupled to one end of the rod 61.

In this state, as shown in FIG. 8, the second housing 30 is rotated in a direction away from the first housing 20.

The center hinge arm 31 of the second housing 30 also rotates, and the hinge housing 65 also rotates together.

At this time, as shown in FIG. 8, the hinge cam 63 is slidably moved in the axis A1 direction in the hinge housing 65, and at the same time, the button part 50 also rotates together.

As shown in FIG. 9, the locker 71 formed below the button unit 50 also rotates together.

The locker 71 is in contact with the first guide contact portion 74a formed in the stopper cam 72 and limits the rotation of the second housing 30 at 150 degrees.

In this state, as shown in FIG. 10, when the user rotates the second housing 30 to extend, the button 50 is slidably moved in the direction of the axis A1.

In this case, as shown in FIG. 11, the locker 71 of the button unit 50 is also slidably moved, and the locker 71 is guided by being separated from the first guide contact portion 74a and the first guide contact ( The second guide contact portion 74b formed at an adjacent position of the portion A1) is contacted.

As shown in FIG. 10, the locker 71 performs rotational rotation of the second housing 30 and restricts rotation of the second housing 30 at 180 degrees. The locker 71 is also extended and rotated together.

Here, as shown in FIG. 8, when the user rotates the second housing 30 in a close direction from the first housing 20, the user rotates the second housing 30 in the reverse direction again. ), The locker 71 is slid again in the direction of the axis A1, is separated from the second guide contact portion 74b, and comes into contact with the first guide contact portion 74a.

At this time, as shown in Figure 9, the locker 71 is provided with a coil spring 73 in the axis (A1) direction to provide an elastic force so that the locker 71 is sliding movement.

In this state, as shown in FIGS. 6 and 7, the second housing 30 is rotated and the locker 71 is also rotated together. At this time, the second housing 30 is in the original position and the first housing is also rotated. It is located in front of the (20).

In addition, the operation of the hinge device of the mobile terminal according to the second embodiment of the present invention having the above configuration will be described in more detail with reference to FIGS. 12 to 22.

As shown in FIG. 18, the terminal includes first and second housings 20 and 30.

16 and 18, a pair of side hinge arms 21 are formed at both ends of the first housing 20, and the second housing 30 is rotatable with the side hinge arms 21. The center hinge arm 31 to be joined is projected.

In this state, as shown in FIGS. 18 and 21, since the exposure hole 32 is formed in the center hinge arm 31 to expose the button portion 100 to the outside, the button portion 100 is exposed to the exposure hole. (32).

At this time, as shown in Figure 15, the hinge module for extending the second housing 30 from the first housing 20 in accordance with the sliding movement of the button unit 100 in the center hinge arm (31) 200).

12, the hinge module 200 includes a hinge housing 205, a hinge shaft 202 in the hinge housing 205, and a shaft hole 202 b of the hinge shaft 202. The shaft rod 201 through and coupled to the shaft rod 201 and having a hinge cam 203 facing the hinge shaft 202 and hinged to the fixing protrusion 203a formed on the hinge cam 203 in the axial A1 direction. Engage the springs 204 sequentially.

In this state, the shaft 202a of the hinge shaft 202 protrudes at one end of the hinge housing 205 and is coupled to the side hinge arm 21 of the first housing 20.

As shown in FIGS. 12 and 13, the tile end of the hinge housing 205 protrudes one end of the shaft rod 201 and fastens the snap ring 206. The end of the protruding shaft rod 201 The stopper cam 303 is formed integrally.

13 and 14, a hinge locking device 300 is configured in the center hinge arm 31 to restrain or release the rotation of the second housing 30 stepwise at a predetermined angle.

In this state, as shown in FIGS. 16 and 18, the second housing 30 is rotated in a direction away from the first housing 20.

As shown in FIG. 17, the center hinge arm 31 of the second housing 30 also rotates, and the hinge housing 205 also rotates together.

At this time, the hinge cam 203 is slid in the direction of the axis A1 in the hinge housing 205, and at the same time the button unit 100 also rotates together.

The locker 302 and the housing 301 formed below the button unit 100 also rotate together.

As shown in FIG. 13, an accommodation space 301a is formed in the locking housing 301, and a locker 302, the stopper cam 303, and an elastic means 304 are formed in the accommodation space 301a. It is provided.

As shown in FIG. 17, the stopper cam 303 is formed to be recessed to engage with the locker 302 and is provided with guide means 305 for guiding and constraining rotation of the locker 302. .

18 and 19, the locker 302 is in contact with the first guide surface 305a formed in the stopper cam 303 and limits the rotation of the second housing 30 at 150 degrees.

In this state, as shown in FIG. 20, when the user rotates the second housing 30 to extend, when the button portion 100 is pressed, the locking housing 301 together with the button portion 100 performs a linear movement. At the same time, the locker 302 also linearly moves away from the first guide surface 305a.

As shown in FIG. 22, the locker 302 is separated from the first guide surface 305a and guided to the second guide surface 305b formed at a position adjacent to the first guide surface 305a.

As shown in FIG. 20, the locking housing 301 guides the locker 302 which is separated from the first guide surface 305a to the second guide surface 305b while pressing the button unit 100. There is provided a leaf spring 400 to provide an elastic force.

At this time, the locker 302 is guided along the second guide surface 305b and in contact with the third guide surface 305c formed at a position adjacent to the second guide surface 305b.

As shown in FIG. 21, the locker 302 rotationally rotates the second housing 30 and restricts rotation of the second housing 30 at 180 degrees. The locker 302 is also extended and rotated.

Here, as shown in FIGS. 13 and 15, a coil spring, which is an elastic means 304, is provided in the locking housing 301 to allow the button unit 100 to linearly move. The coil spring 304 is coupled to the spring supporting member 304a and provided in the accommodation space 301a of the locking housing 301.

At this time, the coil spring 304 is coupled to a spring support protrusion 304b formed in the accommodation space 301a.

The hinge device of the mobile terminal according to the present invention described above is not limited to the above-described embodiments and drawings, and various substitutions, modifications, and changes can be made without departing from the technical spirit of the present invention. It will be apparent to those of ordinary skill in the art.

As described above, according to the hinge apparatus of the mobile terminal according to the present invention,

By constructing a hinge device that rotates the terminal step by step in the mobile terminal, it can be rotated to extend at an open angle of 150 degrees according to the call usage of the terminal to facilitate the use of the communication device as a remote control and other additional functions. In addition, there is an effect that can improve the ease of use, and provide a wide screen to facilitate watching the video in any position.

Claims (18)

A portable terminal comprising a first and a second housing and a hinge device for rotatably coupling the first and second housings, A button unit which rotates or slides; A hinge module extending and rotating the second housing from the first housing as the button unit slides; And And a hinge stopper unit for restricting rotation of the second housing step by step at a predetermined angle. The center hinge arm of claim 1, wherein a center hinge arm protrudes from one end of the second housing to engage with a pair of side hinge arms formed at both ends of the first housing. The center hinge arm further comprises an exposure hole for exposing the button unit to the outside. According to claim 1, The hinge module, Shaft rod formed to extend in the longitudinal direction, A shaft hole penetrating the shaft rod is formed, and at one end, a shaft-side mount portion and a valley portion are formed, and the shaft-side mount portion and the valley portion have a gentle inclination and a steep slope in asymmetrical directions, and the tile end protrudes. A hinge shaft coupled to the first housing, The hinge cam is placed facing the hinge shaft and has a cam side mount portion and a valley portion facing each other in the axial direction of the hinge shaft, and the sliding cam moves in accordance with the rotation of the second housing. and, A hinge spring which is placed in the axial direction and coupled to a fixing protrusion formed on the hinge cam so that one end thereof is in sliding contact with the curved surfaces of each of the ridges and the valleys; And a hinge housing configured to sequentially receive the shaft rod, the hinge shaft, the hinge cam, and the hinge spring. According to claim 3, One end of the hinge housing is protruded the shaft of the hinge shaft is coupled to the side hinge arm of the first housing, The tile end is a hinge device of a mobile terminal, characterized in that one end of the shaft rod protrudes. The locker according to claim 3, wherein the hinge stopper portion is formed vertically in the longitudinal direction of the button portion, rotates together with the second housing, and slides in the axial direction; It is coupled to one end of the shaft rod in the axial direction, and guides and locks the locker when the second housing is rotated, while sliding the locker and guide rotation when the second housing is extended rotation With stopper cam, The hinge device of the portable terminal, characterized in that it is provided in the axial direction and configured to provide an elastic force to enable the sliding movement of the locker. 6. The hinge device of claim 5, wherein the stopper cam is recessed to engage with the locker and is provided with guide means for guiding and restraining the rotation of the locker. 7. The apparatus of claim 6, wherein the guide means comprises: a first guide contact in contact with the locker that rotates with the second housing to limit rotation of the second housing at 150 degrees; Provided at a position adjacent to the first guide contact portion to slide the locker in the axial direction so as to move the locker away from the first guide contact portion to guide and contact the joint to rotate the rotation of the second housing at 180 degrees. A hinge device of a portable terminal, characterized in that it comprises a second guide contact for limiting. 8. The hinge device of claim 7, wherein the second guide contact portion is stepped in the axial direction. The hinge device of a portable terminal according to claim 5, wherein the elastic means is made of a coil spring. A portable terminal comprising a first and a second housing and a hinge device for rotatably coupling the first and second housings, A button unit rotated or pressed; A hinge module extending and rotating the second housing from the first housing according to the pressing of the button unit; And And a hinge locking device for restraining or releasing the rotation of the second housing step by step at a predetermined angle. The center hinge arm of claim 10, wherein a center hinge arm protrudes from one end of the second housing to engage with a pair of side hinge arms formed at both ends of the first housing. The center hinge arm further comprises an exposure hole for exposing the button unit to the outside. The hinge module of claim 10, further comprising: a shaft rod formed to extend in a longitudinal direction; A hinge shaft having a shaft hole penetrating the shaft rod and coupled to the first housing; A hinge cam placed facing the hinge shaft; A hinge spring placed in the axial direction of the hinge shaft and pressing the hinge cam; And a hinge housing configured to sequentially receive the shaft rod, the hinge shaft, the hinge cam, and the hinge spring. The locking device of claim 12, wherein the hinge locking device unit comprises: a locking housing formed below the button unit to form an accommodation space; A locker formed vertically in the longitudinal direction of the button portion in the accommodation space of the locking housing, rotating together with the second housing, and linearly rotating as it is pressed; It is integrally formed on one end of the shaft rod and coupled to the locker, guides and locks the locker when the second housing is rotated, and guides the locker when the second housing is extended. With stopper cam which restrains and, The hinge device of a portable terminal, characterized in that it is composed of elastic means for providing an elastic force to enable the linear movement of the locker. 14. The stopper cam of claim 13, wherein the stopper cam is recessed to engage with the locker. And a guide means for guiding and restraining the rotation of the locker. 15. The apparatus of claim 14, wherein the guide means comprises: a first guide surface in contact with the locker that rotates with the second housing to limit rotation of the second housing at 150 degrees; A second guide surface provided at a position adjacent to the first guide surface to guide the locker separated from the first guide surface; And a third guide surface provided at a position adjacent to the second guide surface to guide the locker along the second guide surface and to contact and limit the extended rotation of the second housing at 180 degrees. The hinge device of a mobile terminal. The method of claim 13, wherein the elastic means is made of a coil spring, is provided with a spring support member coupled to the coil sping to support the spring, The hinge device of the portable terminal, characterized in that the spring projection coupled to the spring is further formed in the receiving space of the locking housing. The lock housing of claim 13, wherein the locking housing further includes a leaf spring for pressing the button and providing an elastic force to guide the locker, which is separated from the first guide surface, to the second guide surface. The hinge device of the mobile terminal. A portable terminal comprising a first and a second housing and a hinge device for rotatably coupling the first and second housings, And a hinge module configured to extend the second housing from the first housing and to restrict the rotation of the second housing step by step at a predetermined angle, according to a button portion that is slidably moved or pressed. Hinge device.

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