KR101061155B1 - Folding device hinge device - 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 as a main body, a second body as a cover, a first hinge arm provided at an end of the first body, and the first body. And a second hinge arm provided at an end portion of the second body corresponding to the first hinge arm, wherein the first and second hinge arms are coupled to each other to form a rotation center axis of the first and second bodies. A hinge device for a folding type portable terminal configured to be connected to the first and second bodies to rotate the second body in an up and down direction with respect to the first body about the rotation center axis. Iv) first hinge points for rotatably supporting the first body on both sides of the first hinge arm, respectively, and ii) second hinges for rotatably supporting the second body. Respectively formed on both sides of the second hinge arm and, ⅲ) the first consists of a first and a second hinge point to the rotational center shaft and set different from each other.

Mobile terminal, folder, hinge, pivot axis, hinge point

Description

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

An exemplary embodiment of the present invention relates to a folding type mobile terminal, and more particularly, to a folding type hinge device for a folding type mobile terminal which opens and closes the cover while rotating the cover in a vertical direction with respect to the main body.

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.

The portable terminal is one of the essential necessities that are indispensable in order to enjoy the convenience of life according to the development of the information industry, and the mobile phone is widely distributed to elementary, middle and high school students and the elderly.

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.

In this case, the folding type mobile terminal includes a keypad part or a display part in a main body, and a display part in a cover, and the cover is formed by rotating the cover vertically in a state where the cover and the main body face each other (0 degrees). It can be opened and closed.

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.

12A illustrates a hinge device 301 for a folding portable terminal according to a first example of the related art, the hinge device 301 being a hinge forming a rotation center axis A of the cover 302 and the main body 303. Mounted on arm 304.

That is, the hinge device 301 is configured on the same axis of the rotation center axis A, and enables the relative rotation of the cover 302 and the body 303 as a complementary hinge action of the cam and the spring.

By the way, since the hinge apparatus 301 is comprised in the hinge arm 304 on the same axis of the rotation center axis A in the prior art, the protrusion size of the hinge arm 304 which forms the rotation center axis A is relatively large. Will increase.

Therefore, in the related art, the design of the portable terminal is limited by the size of the protrusion, and the overall thickness of the portable terminal is visually thick, and consequently, the merits and reliability of the portable terminal are deteriorated. have.

Meanwhile, in the related art, in order to improve the problems as described above, the gear type hinge device 401 according to the second example has been developed as shown in FIG. 12B.

The gear type hinge device 401 is formed by employing a gear (not shown) on each of the rotational central axes A of the cover 402 and the main body 403, and the hinge device 401 itself is a planar shape. As a result, the thickness of the portable terminal has an advantage of making the visual appearance thin.

However, since the gear-type hinge device 401 as described above employs gears that require precision machining, the manufacturing cost of the entire device is increased, thereby failing to secure a competitive advantage in the art. There is this.

On the other hand, in the prior art, as shown in FIG. 12C, the hinge device 501 according to the third example for rotating the cover 502 in the vertical direction with respect to the main body 503 in the wide phone type portable terminal is developed. Doing.

The portable terminal includes a first display unit 504 such as a liquid crystal screen on the cover 502 and a second display unit 505 such as a touch screen on the main body 503.

The hinge device 501 is configured to be connected to the cover 502 and the main body 503 at both sides between the cover 502 and the main body 503 to prevent rotation of the cover 502 and the main body 503. It is mounted on the rotation center axis A which it supports.

However, the hinge device 501 of the related art as described above has a first structure configured in an area between the hinge device 501 due to the overall length along the longitudinal direction (horizontal direction) of the lid 502 and the main body 503. And the area of the second display units 504 and 505 is relatively small.

For this reason, in the related art, since the image is displayed through the first and second display units 504 and 505 in a limited area, the user desires to use a multimedia service such as a video, a DMB, or a game as a large screen. I can't let that happen.

Accordingly, an exemplary embodiment of the present invention has been created to solve the above problems, and is a simple and simple structure, the hinge arm forming the rotation center axis by setting the hinge point different from the rotation center axis of the cover and the main body. Provides a hinge type device for a folding type mobile terminal that can significantly reduce the protrusion size, reduce the manufacturing cost of the entire device, and implement a large display.

To this end, a folding-type hinge device for a portable terminal according to an exemplary embodiment of the present invention includes a first body as a main body, a second body as a cover, a first hinge arm provided at an end of the first body, And a second hinge arm provided at an end portion of the second body corresponding to the first hinge arm, wherein the first and second hinge arms are coupled to each other to form a central axis of rotation of the first and second bodies. A portable terminal, comprising: a folding type hinge device for a portable terminal configured to be connected to the first and second bodies to rotate the second body in an up and down direction with respect to the first body about the rotation center axis And (i) first hinge points for rotatably supporting the first body on both sides of the first hinge arm, and ii) rotatably supporting the second body. Second hinge points are formed on both sides of the second hinge arm, respectively, and i) the first and second hinge points are different from the rotation center axis.

In the folding-type hinge device for a portable terminal, the first and second hinge points may be configured at positions outside the axis line of the rotation center axis with the rotation center axis therebetween.

In the folding type hinge device for a portable terminal, a first rotator may be rotatably mounted at each of the first hinge points.

In the folding-type hinge device for a mobile terminal, a second rotator may be rotatably mounted at each second hinge point.

In the folding-type hinge device for a portable terminal, the first and second rotators face each other on both sides of the first and second hinge arms, and may be configured to be connected to each other through an elastic member.

In the folding-type hinge device for a portable terminal, the first and second rotators are separated from each other when the second body is rotated by 0 to 90 degrees while the first and second bodies face each other. The second body may be configured to approach each other when the second body rotates in a 90 to 180 degree interval.

In the folding-type hinge device for a portable terminal, a housing for supporting the first and second rotators may be provided between the first and second rotators.

In the folding-type hinge device for a portable terminal, a hinge shaft constituting the first hinge point may be fitted and fixed to the first rotator.

In the folding device hinge device, the second rotator may be formed so that the hinge protrusions constituting the second hinge point protrudes integrally on both sides.

In the folding-type hinge device for a mobile terminal, the elastic member may include a pair of tension coil springs.

In the folding-type hinge device for a portable terminal, both ends of each of the tension coil springs may be fixed to the first and second rotators.

In the folding-type hinge device for a portable terminal, fixing grooves for fixing both ends of the tension coil spring may be formed in the first and second rotators, respectively.

In the folding-type hinge device for a portable terminal, the first and second rotators may form support protrusions for supporting both ends of the tension coil spring on the outside of the fixing groove.

In the folding-type hinge device for a portable terminal, each of the tension coil springs may have a small diameter portion having a smaller coiling outer diameter of a portion corresponding to each of the supporting protrusions on both end portions thereof.

In the folding-type hinge device for a portable terminal, the first and second rotators are formed to protrude stems in directions facing each other, and the elastic members can be fitted to both sides of the stem portions therebetween. Fixing grooves may be formed respectively.

In the folding-type hinge device for a mobile terminal, round guide protrusions may be integrally formed on both side surfaces of each stem.

In the folding-type hinge device for a mobile terminal, a guide groove to which the guide protrusion can be slidably coupled may be formed on an inner wall surface of the housing.

In the folding-type hinge device for a portable terminal, the housing may be formed in a form in which both ends thereof are open to allow the first and second rotators to be inserted therein.

In the folding-type hinge device for a portable terminal, the housing has a first support groove for supporting both ends of the hinge shaft at one end thereof, and a second support groove for supporting the hinge protrusions at the other end thereof. Can be.

In the folding-type hinge device for a portable terminal, the hinge shaft may pass through a through hole formed in the first rotator and be fixed to the first rotator through a washer.

The folding-type hinge device for a portable terminal may be provided with hinge brackets mounted on both sides of the hinge arms and coupling the hinge arms to form the rotational central axis.

The folding type hinge device for a mobile terminal may include forming the first hinge points on the hinge brackets on both sides of the first hinge arm, and the second hinges on the hinge brackets on both sides of the second hinge arm. You can form a point.

In the folding-type hinge device for a portable terminal, a first rotator rotatably supported at both sides of the hinge bracket and the first hinge arm may be mounted at each of the first hinge points.

In the folding-type hinge device for a portable terminal, second rotators rotatably supported at both sides of the hinge bracket and the second hinge arm may be rotatably mounted at each second hinge point.

The folding type hinge device for a portable terminal may be configured in a portable terminal in which lengths of the first and second bodies are relatively longer than widths, and the second body is rotatable in a longitudinal direction with respect to the first body. have.

The folding-type hinge device for a portable terminal may be configured in a portable terminal whose length of the first and second bodies is relatively longer than a width, and wherein the second body is rotatable in a width direction with respect to the first body. have.

According to the exemplary embodiment of the present invention as described above, since the first and second hinge points for supporting the rotation of the first and second bodies are set differently from the rotation center axis of the first and second bodies. As a result, the protruding size of the hinge arm forming the rotational central axis can be significantly reduced.

Therefore, in the present embodiment, since the protrusion size of the hinge arm forming the rotational center axis can be minimized as compared with the prior art, the design constraint of the mobile terminal can be minimized, and the overall thickness of the mobile terminal can be visually thin so that the portable Productivity and reliability of the terminal can be further improved.

In addition, in the present embodiment, unlike the conventional technology employing a relatively expensive gear hinge, since the rotator and the elastic member are provided as a simple structure, the manufacturing cost can be reduced and the weight of the portable terminal can be reduced.

In addition, in the present embodiment, since the first and second hinge points are set differently from the rotation center axes of the first and second bodies, and the rotation center axes are formed as a combination of the hinge brackets, the first and second body hinges are arranged in the longitudinal direction of the first and second bodies. It is possible to minimize the width of the entire hinge device according to.

Therefore, in the present embodiment, since the first display unit and the second display unit can be mounted as large screens on the front surfaces of the first and second bodies, various character information can be conveniently input as a touch operation of the QWERTY keyboard arrangement through the first display unit. In addition, a game or the like may be more conveniently used, and multimedia services such as DMB, video, and games may be conveniently used through the second display unit on the large screen.

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.

1 is a front configuration diagram illustrating an example of a folding-type portable terminal to which a hinge apparatus according to an exemplary embodiment of the present invention is applied, and FIG. 2 is an exploded perspective view of FIG. 1.

Referring to the drawings, the mobile terminal 1 to which the hinge device 100 according to an exemplary embodiment of the present invention is applied performs data input or DMB, while basically performing a mobile communication function such as voice / video call and message transmission. For example, a mobile communication terminal capable of using a multimedia service such as a video or a game may be used.

This portable terminal 1 comprises a first body 2 as a main body and a second body 3 as a lid.

The mobile terminal 1 is basically a vertical rotation method in which the second body 3 can be opened and closed while the second body 3 rotates in the vertical direction with respect to the first body 2 (which is conventional in the art). It can be configured as a general mobile phone of the "folding method").

In the present embodiment, the portable terminal 1 is placed in the vertical direction and viewed from the front, and in the following, the second body 3 of the portable terminal 1 is the first body 2 as shown in the drawing. It is based on the open state of, and the surface facing to the user can be defined as the front side.

In addition, the width directions of the first body 2 and the second body 3 may be defined in the left and right directions, and the longitudinal direction may be defined in the vertical direction.

Here, the first body 2 and the second body 3 of the portable terminal 1 are formed as a rectangular body having a length longer in the vertical direction than the width in the left and right directions.

That is, in the present embodiment, the second body 3 is rotated in the up and down direction along the length direction with respect to the first body 2 in this embodiment, thereby opening and closing the second body 3.

In addition, the portable terminal 1 constitutes a keypad 4 on the front surface of the first body 2 with reference to the drawings, and a display unit as a liquid crystal panel or a touch screen on the front surface of the second body 3. 5) is configured.

The definition of the direction as described above is a relative meaning, and 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.

Until now, the hinge device 100 according to an exemplary embodiment of the present invention has been applied to a general mobile phone capable of mobile communication as the portable terminal 1, but a PDA, PMP, smart phone, handheld PC, MP3 / It may be applied to portable electric and electronic devices such as 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.

On the other hand, the hinge device 100 according to an exemplary embodiment of the present invention applied to the portable terminal 1 as described above is between the first body 2 and the second body 3 of the portable terminal 1. It is configured to be interconnected to the bodies 2, 3.

To this end, first and second hinge arms 6 for mounting the hinge device 100 according to an exemplary embodiment of the present invention are provided at the upper end of the first body 2 and the lower end of the second body 3 in the drawing. And 7) are formed respectively.

The first hinge arm 6 is formed along the width direction (left and right directions) at the upper end of the first body 2, and the second hinge arm 7 corresponds to the first hinge arm 6. It is formed along the width direction (left-right direction) in the lower end part of (3).

Here, on both sides of the first hinge arm 6, first mounting portions 8 as mounting grooves for mounting the hinge device 100 according to the present embodiment are formed, respectively, and the second hinge arm 7 Both sides also form second mounting portions 9 as mounting grooves for mounting the hinge device 100, respectively.

That is, the first hinge arm 6 is made as a projection between the first mounting portions 8, and the second hinge arm 7 is made as a projection between the second mounting portions 9.

In addition, the first and second hinge arms 6 and 7 may be coupled to each other by first and second coupling parts 6a and 7a formed in each of them.

In this case, the first engagement portion 6a is formed as a coupling protrusion of a predetermined length protruding as a circular portion at the center of the first hinge arm 6, and the second engagement portion 7a is the second hinge arm 7. The groove 7b is provided at the center of the groove and is formed as a coupling protrusion of a predetermined length protruding as a circle on both sides thereof.

Thus, the first and second bodies 2, 3 have grooves between the second engaging portion 7a at the first hinge arm 6 of the first hinge arm 6 at the second hinge arm 7. It is rotatably supported while being coupled to 7b.

Here, the first and second coupling parts 6a and 7a are coupled to each other as mentioned, and thus constitute the rotation center axes A of the first and second bodies 2 and 3, and thus the second body 3 ) Is opened and closed by rotating along the up-down direction about the rotation center axis A with respect to the first body (2).

Hereinafter, a configuration of the folding-type portable terminal hinge apparatus 100 according to an exemplary embodiment of the present invention will be described in detail with reference to FIGS. 1 and 2 and FIGS. 3A, 3B and 4.

3A and 3B are an overall exploded perspective view showing the configuration of a hinge device for a folding portable terminal according to an exemplary embodiment of the present invention, Figure 4 is a hinge for a folding portable terminal according to an exemplary embodiment of the present invention It is a front block diagram which shows the structure of an apparatus.

Referring to the drawings, the folding device hinge device 100 according to an exemplary embodiment of the present invention forms a first hinge point (H1) on both sides of the first hinge arm (6), the second hinge The point H2 is formed on both sides of the second hinge arm 7, and is configured by setting differently from the rotational center axis A which has mentioned the first and second hinge points H1 and H2.

The first hinge point H1 is for rotatably supporting the first body 2 and is formed in the first mounting portion 8 of the first body 2, respectively.

The second hinge point H2 is rotatably supporting the second body 3 and is formed in the second mounting portion 9 of the second body 3, respectively.

These first and second hinge points (H1, H2) are connected to the first and second body (2, 3) of the mobile terminal 1, the relative rotation of the first and second body (2, 3) As a support, a detailed configuration thereof will be described later in more detail.

Here, unlike the prior art, the first and second hinge points H1 and H2 are not formed on the same axis of the rotation center axis A, and as mentioned above, the rotation center axis A is interposed therebetween. It is comprised in the position off the axis line of the rotation center axis A.

To this end, the hinge device 100 according to an exemplary embodiment of the present invention includes a first rotator 10, a second rotator 30, an elastic member 50, and a housing 70. If this is described by configuration, it is as follows.

In the present embodiment, the first rotator 10 is rotatably installed on both sides of the first hinge arm 6 in the first body 2, respectively, on the first mounting portions 8 on both sides thereof. Is mounted.

Each of the first rotators 10 substantially forms a first hinge point H1 at each of the first mounting portions 8, and both sides thereof (left and right sides in the drawing) are formed inside the first mounting portions 8. Facing the side wall is rotatably mounted at the first hinge point (H1).

The first rotator 10 includes a first body portion 11 and a first stem portion 17 formed integrally with the body portion 11.

The first body portion 11 has a semi-circular shape in overall shape, and has a through hole 12 penetrating to both sides in the center thereof.

And, the first body portion 11 is made of a flat surface on one side, the other side is to be equipped with an elastic member 50 to be further described later on both sides of the first stem portion 17 in the center Each of the first mounting spaces 13 can be formed.

On the other hand, the hinge shaft 14 constituting the first hinge point (H1) mentioned in the through-hole 12 of the first body portion 11 is fitted and fixed, the hinge shaft 14 ) Penetrates the through hole 12 and is installed to protrude to both sides of the first body part 11.

In this case, one end of the hinge shaft 14 has an outer diameter relatively larger than the inner diameter of the through hole 12 and supports an edge portion of the through hole 12 on one side of the first body portion 11. A locking projection 15 is formed.

Here, the other end of the hinge shaft 14 has an outer diameter relatively smaller than the inner diameter of the through hole 12, and has an outer diameter that can be forcibly fit into the through hole 12 between each end. .

In addition, a hollow washer 16 having the same outer diameter as the locking protrusion 15 is mounted at the other end of the hinge shaft 14.

The washer 16 is riveted to the other end thereof as a riveting method, and is formed as a locking protrusion for supporting the edge portion of the through hole 12 on the other side of the first body portion 11.

Therefore, the hinge shaft 14 is fixedly fitted to the through hole 12 of the first body portion 11, and the first through the washer 16 of the other end and the washer 16 of the other end. It is rotatably supported by the mounting part 8.

That is, the locking protrusion 15 and the washer 16 are rotatably fitted in the first hinge grooves 8a (see FIG. 2) respectively formed on inner wall surfaces of the first mounting portion 8 that face each other.

As a result, the first rotator 10 is rotatably supported in the first hinge groove 8a of the first mounting part 8 while the hinge shaft 14 is fixedly fitted to the through hole 12. As a result, it can be rotatably mounted to the first mounting portion (8).

In the above, the first stem portion 17 has sides extending on both sides of the first body portion 11 and the edges of the first body portion 11 between the first mounting spaces 13 mentioned above. The opposite edge of the round part).

In this case, the first guide protrusions 18 having a round shape are integrally projected on both side surfaces (left and right sides in the drawing) of the first stem portion 17 along a direction perpendicular to the inner center of the through hole 12. Is formed.

In this embodiment, the second rotator 30 is rotatably installed on both sides of the second hinge arm 7 in the second body 3, respectively, on the second mounting portions 9 on both sides thereof. Is mounted.

The second rotator 30 forms a second hinge point H2 at each of the second mounting parts 9, and both side surfaces thereof (left and right sides in the drawing) face the inner surface of the second mounting parts 9. And is rotatably mounted at the second hinge point H2.

The second rotator 30 includes a second body portion 31 and a second stem portion 37 formed integrally with the body portion 31.

The second body portion 31 has a semi-circular shape as a whole, and has a second stem portion 37 centered on one side thereof, and a second elastic member 50 which can be mounted on both sides thereof, which can be described later. The mounting space 33 is formed, and the other side is made of a flat surface.

On the other hand, on both sides of the second body portion 31 to form a hinge projection (35) constituting the second hinge point (H2) mentioned, respectively, the hinge projection (35) is the second body portion ( 31 is formed to protrude integrally in both directions from both side surfaces.

Here, the hinge protrusions 35 are rotatably fitted into second hinge grooves 9a (see FIG. 2) respectively formed on inner wall surfaces of the second mounting units 9 facing each other.

Accordingly, the second rotator 30 is rotatably supported by the second hinge groove 9a of the second mounting portion 9 so that each hinge protrusion 35 is rotated as a result of the second mounting portion 9. It can be mounted as possible.

In the above, the second stem portion 37 has sides extending on both sides of the second body portion 31 and the edges of the second body portion 31 between the second mounting spaces 33 mentioned above. The opposite edge of the round part).

In this case, the second guide protrusions 38 having a round shape are integrally formed on both side surfaces (left and right sides in the drawing) of the second stem portion 37 in a direction perpendicular to the center of the hinge protrusion 35. do.

In this embodiment, the elastic member 50 interconnects the first and second rotators 10, 30 facing each other on both sides of the first and second hinge arms 6, 7, and the first and the second 2 rotators (10, 30) to exert elasticity.

The elastic member 50 is provided as a pair for the first and second rotators 10 and 30 facing each other on both sides of the first and second hinge arms 6 and 7, and the first and second bodies. It consists of the tension coil spring 51 which can be tensioned to the (2, 3) side.

The tension coil springs 51 are provided as a pair for the first and second rotators 10 and 30 facing each other on both sides of the first and second hinge arms 6 and 7, hereinafter for convenience. , An example provided as a pair for the first and second rotators 10 and 30 facing each other on one side of the first and second hinge arms 6 and 7 will be described.

In each of these tension coil springs 51, both ends thereof are fixed to the first and second rotators 10, 30, respectively.

That is, one end of each of the tension coil springs 51 is fixed to the first mounting space 13 in the first body portion 11 of the first rotator 10, and the other end thereof is the second rotator 30. It is fixed to the second mounting space (33) in the second body portion (31) of.

To this end, a first fixing groove 21 for fixing one end of the tension coil spring 51 is formed in the first mounting space 13 of the first rotator 10.

In the second mounting space 33 of the second rotator 30, a second fixing groove 41 for fixing the other end of the tension coil spring 51 is formed.

The first and second rotators 10 and 30 form support protrusions 23 and 43 for supporting both end sides of the tension coil spring 51 fitted into the fixing grooves 21 and 41, respectively. The support protrusions 23 and 43 are formed as protrusions protruding in the directions facing each other from the outside of the first and second fixing grooves 21 and 41.

On the other hand, the tension coil springs 51 according to the present embodiment are both end portions thereof are supported by the support protrusions 23 and 43, so as to form small diameter portions 53 on both end sides thereof as shown in FIG. have.

Here, the small diameter portion 53 means a portion in which the coiling outer diameter of the portion corresponding to each of the support protrusions 23 and 43 is relatively smaller than the remaining portion (the large diameter portion).

The small diameter portion 53 is tensioned in a state in which both ends of the tension coil spring 51 are supported by the support protrusions 23 and 43, respectively, when the ends of the tension coil spring 51 are fixed to the first and second fixing grooves 21 and 41, respectively. Both ends of the coil spring 51 serve to prevent the first and second fixing grooves 21 and 41 from falling out.

In this embodiment, the housing 70 surrounds some of these rotators 10, 30 between the first and second rotators 10, 30, and supports the first and second rotators 10, 30. do.

The housing 70 is disposed between the first and second mounting portions 8, 9 facing each other on both sides of the first and second hinge arms 6, 7, and the first and second rotators 10, 30. ) Is formed as a case shape with both ends open to be insertable.

Here, the housing 70 has a first support groove 71 for supporting both ends of the hinge shaft 14 of the first rotator 10 at one edge end, the second rotator 30 at the other edge end The second support groove 72 for supporting each hinge projection 35 of the () is formed.

As shown in FIG. 6, the housing 70 has guide grooves 75 formed on inner wall surfaces corresponding to both side surfaces of the stem portions 17 and 37 of the first and second rotators 10 and 30. .

The guide groove 75 is a portion in which the first and second guide protrusions 18 and 38 of each stem portion 17 and 37 are slidably coupled to the first and second guide protrusions 18 and 38. It is made as a groove of the corresponding round form.

In this case, the guide groove 75 forms a shape with the first and second guide protrusions 18 and 38.

Accordingly, the first and second guide protrusions 18 and 38 of the first and second rotators 10 and 30 are slidably coupled to the guide groove 75, so that the housing 70 is formed of the first and the second guide protrusions 18 and 38. While supporting the rotators 10 and 30, the first and second bodies 2 and 3 guide the movement of the rotators 10 and 30 when opening and closing the first and second bodies 2 and 3. ) To prevent flow.

Hereinafter, the operation of the hinge device 100 for a folding-type portable terminal according to an exemplary embodiment of the present invention configured as described above will be described in detail with reference to the drawings and the accompanying drawings.

7 to 9 are views for explaining the operating state of the hinge device for a folding-type portable terminal according to an exemplary embodiment of the present invention.

First, in the present embodiment, as shown in FIG. 7, the closed state in which the display portion 5 of the second body 3 and the keypad portion 4 of the first body 2 face each other (0 degrees, hereinafter convenience). Phase is called the "first mode".

In the first mode, the first and second rotators 10, 30 are perpendicular to the central axis of rotation A of the first and second bodies 2, 3 and the first and second bodies 2, 3. The first and second stem portions 17 and 37 are slightly separated from each other at regular intervals in the thickness direction (up and down direction in the drawing).

In this case, the tension coil springs 51 of the elastic member 50 connect the first and second rotators 10 and 30, and while maintaining the original shape, the elastic force does not act or is stretched to a relatively small size. Corresponding elasticity may act on the rotators 10, 30.

In the first mode as described above, as shown in FIG. 8, the user lifts the second body 3 upward in a predetermined section (for example, 0 to 90 degrees section) of the entire rotation section (hereinafter, referred to as “for convenience”). 2 mode ").

That is, the second body 3 is rotated a predetermined section in an upward direction with respect to the first body 2 about the rotation center axis (A).

Then, since the first and second hinge points H1 and H2 according to the present embodiment are set differently from the rotational center axes A of the first and second bodies 2 and 3, the second mode is used. In the first and second rotators (10, 30) are rotated in the counterclockwise direction in the drawing with respect to the first and second hinge points (H1, H2) and the distance between them become far from each other.

Herein, the first and second rotators 10 and 30 have an arbitrary virtual center line connecting their rotation center points passing through the rotation center axis A in the direction of the first body 2 from the second body 3. It is located inclined downward.

In this case, the tension coil springs 51 of the elastic member 50 are spaced apart from each other by the first and second rotators 10 and 30, and thus are maximized by the first and second rotators 10 and 30. As the tension is reached, the inflection point is reached.

Then, the tension coil springs 51 provide their elastic restoring force to the respective rotators 10 and 30, and the elastic restoring force moves the second body 3 upward with respect to the first body 2. It acts as a driving force to rotate.

In the second mode as described above, the user applies a slightly more upward force on the second body 3.

Then, as shown in FIG. 9, the second body 3 is the remaining section of the entire rotation section along the upper direction about the rotation center axis A by the elastic restoring force of the tension coil spring 51 (for example, 90). ˜180 degrees) and automatically opens relative to the first body 2 (hereinafter referred to as " third mode " for convenience).

When the operation of the third mode is described in detail, as the force acts on the second body 3 in the second mode, the second body 3 rotates slightly upward, and at the same time the tension coil springs 51 is restored (compressed) to the original state after the inflection point.

Accordingly, the elastic restoring force of the tension coil springs 51 is provided to the first and second bodies 2 and 3 through the first and second rotators 10 and 30, so that the second body 3 is Instantaneous rotation is 90 degrees by the elastic restoring force of the tension coil springs 51 to automatically rotate in the upward direction in the remaining section.

In the above process, the first and second rotators 10 and 30 are close to each other while rotating counterclockwise in the drawing with respect to the first and second hinge points H1 and H2. To maintain the spacing.

In this case, the first and second rotators 10 and 30 are perpendicular to the rotation center axis A of the first and second bodies 2 and 3 and the length of the first and second bodies 2 and 3. It is positioned in the direction (left and right directions in the drawing).

On the other hand, when closing the second body 3 in a state in which the second body 3 is fully opened with respect to the first body 2 as described above, since the operation is performed in the reverse order to the above process, a more detailed description will be given below. It will be omitted.

As described so far, in the exemplary embodiment of the present invention, the hinge device 100 is configured on both sides of the hinge arms 6, 7 of the first and second bodies 2, 3, and the first and second hinges. Since the points H1 and H2 are set differently from the rotation center axes A of the first and second bodies 2 and 3, the hinge arms 6 and 7 forming the rotation center axes A are formed. The protrusion size can be significantly reduced.

Therefore, in the present embodiment, since the protrusion sizes of the hinge arms 6 and 7 forming the rotational center axis A can be minimized as compared with the prior art, the design constraint of the portable terminal 1 can be minimized. By making the overall thickness of the portable terminal 1 visually thin, the merchandise and reliability of the portable terminal 1 can be further improved.

And, in the present embodiment, unlike the prior art using a relatively expensive gear hinge to solve the problem of the protrusion as described above, since the rotator (10, 30) and the elastic member 50 is provided as a simple structure, fabrication The cost can be reduced and the weight of the portable terminal 1 can be reduced.

10 is a front configuration diagram showing another example of a folding-type portable terminal to which a hinge device is applied according to another exemplary embodiment of the present invention.

Referring to the drawings, the portable terminal 101 to which the hinge device 200 is applied according to another embodiment of the present invention has a first body 102 as a main body and a second body 103 as a cover when referring to the drawings. It is configured as a rectangular body whose length in the left and right directions is relatively longer than the width in the vertical direction.

The portable terminal 101 is opened and closed operation of the second body 103 by rotating the second body 103 in the vertical direction along the width direction with respect to the first body (102).

Referring to the drawings, the first display unit 104 as a touch screen is formed on the front surface of the first body 102, and the second display unit 105 as a liquid crystal display panel is formed on the front surface of the second body 103. ).

In this case, the first display unit 104 displays a menu key, a direction change key, a display of a qwerty-type key in a keyboard arrangement capable of inputting alphabets and Korean characters, and touch operation of the keys. This is done as a possible structure.

In addition, the second display unit 105 may display a function screen of the mobile terminal 101 as a touch operation of the first display 104, and display multimedia such as a DMB, a video, a game, and the like.

That is, the portable terminal 101 to which another exemplary embodiment of the present invention is applied may include a so-called qwerty phone or game phone, commonly referred to in the art as a wide phone.

On the other hand, the upper end of the first body 102 and the lower end of the second body 103, the first and second hinge arms 106, for mounting the hinge device 200 according to another exemplary embodiment of the present invention; 107), respectively.

The first hinge arm 106 is formed along the longitudinal direction (left and right directions) at the upper end of the first body 102, and the second hinge arm 107 corresponds to the first hinge arm 106. It is formed in the lower end part of 103 along the longitudinal direction (left-right direction).

Here, first and second mounting grooves 108 and 109 for mounting the hinge device 200 according to the present embodiment are formed on both sides of the first and second hinge arms 106 and 107, respectively.

Hereinafter, the configuration of a hinge type device 200 for a folding portable terminal according to another exemplary embodiment of the present invention will be described in detail with reference to FIGS. 10 and 11.

11 is a partially exploded perspective view showing the configuration of a hinge device for a folding portable terminal according to an exemplary embodiment of the present invention.

Referring to the drawings, the folding device hinge device 200 according to another exemplary embodiment of the present invention is based on the structure of the electrical embodiment, the center of rotation of the first and second body (102, 103) A hinge bracket 201 capable of forming the axis A and the first and second hinge points H1 and H2 is provided.

In this embodiment, the hinge brackets 201 face each other on both sides of the first and second hinge arms 106, 107 and are fixedly mounted on both sides of these hinge arms 106, 107, each hinge arm. And combines 106 and 107 and forms the central axis of rotation A of the first and second bodies 102 and 103.

Each of the hinge brackets 201 are fixed to both sides of the hinge arms 106 and 107 through fastening members JB such as bolts, and thus the first and second of the hinge arms 106 and 107 are fixed. The fastening part 202 which is coupled to the mounting grooves 108 and 109 and which can be fastened to both sides of the hinge arms 106 and 107 by the fastening member JB is formed to protrude.

Here, the fastening portion 202 is coupled to the coupling grooves (108a, 109a) formed in the first and second mounting grooves (108, 109) of each hinge arm (106, 107).

In addition, a pair of fastening holes 203 through which the fastening member JB is fastened is formed in the body of each hinge bracket 201, and the fastening holes 203 pass through the fastening part 202. Is formed.

Fastening grooves 108b and 109b through which the fastening member JB penetrating the fastening hole 203 may be coupled to the bottom surfaces of the coupling grooves 108a and 109a which have been mentioned in correspondence with the fastening holes 203. Forming.

On the other hand, when the hinge bracket 201 is based on a pair of facing each other on both sides of the first and second hinge arms (106, 107), the coupling portion 204 can protrude in the direction facing each other and can be mutually coupled ), Respectively.

The coupling part 204 is formed in the hinge bracket 201 on the side of the first hinge arm 106 to protrude toward the second hinge arm 107, and the coupling part 204 has a coupling hole 205. Is formed.

In the hinge bracket 201 on the side of the second hinge arm 107, the coupling portion 204 is formed to protrude toward the first hinge arm 106, and the coupling hole 204 is referred to as the coupling hole. Engaging projections 206 that can be rotatably fitted to 205 are formed to protrude in the longitudinal direction of the second hinge arm 107.

Thus, in the present embodiment, the hinge brackets 201 are mounted on both sides of the first and second hinge arms 106 and 107 and fixedly fixed to both sides thereof, and coupled to the pair of hinge brackets 201. 204 are formed respectively, and the rotation center axes A of the first and second bodies 102 and 103 are rotatably coupled to the coupling holes 205 of the coupling protrusions 206 of the respective coupling portions 204. Will form.

On the other hand, the hinge bracket 201 according to the present embodiment forms a first hinge point H1 supporting rotation of the first body 102 on both sides of the first hinge arm 106 as described above. Then, the second hinge point (H2) for supporting the rotation of the second body 103 on both sides of the second hinge arm 107 is formed.

Here, the first and second hinge points (H1, H2) are not formed on the same axis of the rotation center axis (A) as in the previous embodiment, and the rotation center thereof with the rotation center axis (A) in between. It is comprised in the position off the axis line of the axis A.

To this end, in the hinge device 200 according to another exemplary embodiment of the present invention, the first rotator 210 is rotatably mounted to the hinge brackets 201 corresponding to both sides of the first hinge arm 106. The second rotator 230 is rotatably mounted to the hinge brackets 201 corresponding to both sides of the second hinge arm 107.

In addition, the hinge device 200 interconnects the first and second rotators 210 and 230 facing each other on both sides of the first and second hinge arms 106 and 107 to the rotators 210 and 230. Between the elastic member 250 exhibiting elasticity and the first and second rotators 210 and 230, a part of the rotators 210 and 230 is wrapped to support the first and second rotators 210 and 230. Housing 270 is provided.

Here, the first rotator 210 includes a hinge axis 214 constituting the first hinge point (H1) as in the previous embodiment, the hinge axis 214 is a hinge bracket 201 and the first 1 is rotatably supported on both sides of the hinge arm 106.

That is, both ends of the hinge shaft 214 are rotatably fitted into the first hinge grooves 108c and 208c respectively formed in the first mounting groove 108 and the hinge bracket 201 of the first hinge arm 106. .

Accordingly, the first rotator 210 is rotatably supported at both ends of the hinge shaft 214 by the hinge brackets 201 and the first hinge grooves 108c and 208c of the first mounting groove 108. The first mounting groove 108 of the body 102 may be rotatably mounted to the hinge bracket 201.

In addition, the second rotator 230 includes a hinge protrusion 235 constituting the second hinge point (H2) as in the previous embodiment, the hinge protrusion 235 is a hinge bracket 201 and the first 2 hinge arms 107 are rotatably supported.

That is, the hinge protrusion 235 is rotatably fitted into the second mounting groove 109 of the second hinge arm 107 and the second hinge grooves 109c and 209c formed in the hinge bracket 201.

Accordingly, since the hinge rotator 235 is rotatably supported by the hinge brackets 201 and the second hinge grooves 109c and 209c of the second mounting groove 109, the second rotator 230 may be rotated. The second mounting groove 109 of the 103 may be rotatably mounted to the hinge bracket 201.

Since the rest of the configuration and operation of the hinge device for a folding-type portable terminal 200 according to another exemplary embodiment of the present invention as described above is the same as in the above embodiment, a more detailed description thereof will be omitted below.

As described above, in another exemplary embodiment of the present invention, the first and second hinge points H1 and H2 are set differently from the rotational center axis A of the first and second bodies 102 and 103. And, since the rotation center axis (A) is formed as a combination of the hinge bracket 201, it is possible to minimize the width of the entire hinge device 200 in the longitudinal direction of the first and second body (102, 103). .

Therefore, in the present embodiment, since the first display unit 104 and the second display unit 105 can be mounted on the front surfaces of the first and second bodies 102 and 103 as large screens, the first display unit 104 can be mounted. As a touch manipulation of the QWERTY keyboard arrangement through the user, various character information can be conveniently input or games can be used more conveniently.

In the present embodiment, the multimedia display such as DMB, video, game, etc. may be conveniently used through the second display unit 105 of the large screen.

In addition, in the present embodiment, it is possible to minimize the size of the entire hinge device 200, it is made of a simple configuration such as the rotator (210, 230) and the elastic member 250, it is possible to reduce the manufacturing cost, portable terminal The weight of 101 can be reduced.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited thereto, and various modifications and changes can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings. Naturally, it belongs to the scope of the invention.

Since these drawings are for reference in describing exemplary embodiments of the present invention, the technical idea of the present invention should not be construed as being limited to the accompanying drawings.

1 is a front configuration diagram illustrating an example of a folding-type portable terminal to which a hinge apparatus according to an exemplary embodiment of the present invention is applied.

2 is an exploded perspective view of FIG. 1.

3A and 3B are full exploded perspective views showing the configuration of a hinge device for a folding portable terminal according to an exemplary embodiment of the present invention.

4 is a front configuration diagram showing a configuration of a hinge device for a folding portable terminal according to an exemplary embodiment of the present invention.

5 is a perspective view illustrating an elastic member applied to a hinge apparatus for a folding portable terminal according to an exemplary embodiment of the present invention.

6 is a cross-sectional configuration diagram of a housing applied to a hinge device for a folding portable terminal according to an exemplary embodiment of the present invention.

7 to 9 are views for explaining the operation of the hinge device for a folding portable terminal according to an exemplary embodiment of the present invention.

10 is a front configuration diagram showing another example of a folding-type portable terminal to which a hinge device is applied according to another exemplary embodiment of the present invention.

11 is a partially exploded perspective view showing the configuration of a hinge device for a folding portable terminal according to an exemplary embodiment of the present invention.

12A to 12C illustrate a hinge apparatus for a folding portable terminal according to the related art.

<Description of reference numerals for the main parts of the drawings>

10, 210 ... First rotator 14, 214 ... Hinge axis

30, 230 ... 2nd rotator 35, 235 ... Hinge projection

50, 250 ... elastic member 51 ... tensile coil spring

70, 270 ... housing

Claims (17)

A first body serving as a main body, a second body serving as a lid, a first hinge arm provided at an end of the first body, and a second hinge arm provided at an end of the second body corresponding to the first hinge arm. In the portable terminal, wherein the first and second hinge arms are coupled to each other to form a central axis of rotation of the first and second bodies, A hinge device for a folding type portable terminal configured to be connected to the first and second bodies and to rotate the second body in an up and down direction with respect to the first body about the rotation center axis. First hinge points for rotatably supporting the first body on both sides of the first hinge arm, respectively Second hinge points for rotatably supporting the second body are respectively formed on both sides of the second hinge arm, The hinge device for a folding type portable terminal, wherein the first and second hinge points are formed at positions outside the axis line of the rotation center axis with the rotation center axis therebetween. delete The method according to claim 1, A first rotator is rotatably mounted at each of the first hinge points, and a second rotator is rotatably mounted at each of the second hinge points, And the first and second rotators face each other on both sides of the first and second hinge arms and are connected to each other through an elastic member. The method of claim 3, The first and second rotators, When the second body is rotated in the 0 ~ 90 degree section in the state where the first and the second body facing each other, and away from each other, The folding device hinge device of claim 2, wherein the second body is configured to be close to each other when the second body rotates in a 90 to 180 degree section. The method of claim 3, And a housing for supporting the first and second rotators between the first and second rotators. The method of claim 3, The first rotator is fixed to the hinge shaft constituting the first hinge point, The hinge device for a folding type portable terminal, wherein the hinge protrusions constituting the second hinge point are integrally protruded from both sides of the second rotator. The method of claim 3, The elastic member includes a pair of tension coil springs, each tension coil spring having both ends thereof fixed to the first and second rotators, And a fixing groove for fixing both ends of the tension coil spring to the first and second rotators, respectively. 8. The method of claim 7, The first and second rotators form a support protrusion for supporting both ends of the tension coil spring on the outside of the fixing groove, And each tension coil spring has a small diameter portion having a smaller outer diameter of the coiling portion of the portion corresponding to each of the supporting projections on both end portions thereof. The method of claim 3, The first and second rotators, A hinge device for a folding type portable terminal, wherein the stem parts are formed to protrude in a direction facing each other, and each of the stem parts is formed therebetween to form fixing grooves into which the elastic members can be fitted. The method of claim 9, The hinge device for a folding-type portable terminal, wherein the guide protrusions having a round shape are integrally protruded from both side surfaces of each stem. The method of claim 10, A housing for supporting the first and second rotators is provided between the first and second rotators, The folding device hinge device for forming a guide groove in which the guide protrusion is slidably coupled to the inner wall surface of the housing. The method according to claim 6, A housing for supporting the first and second rotators is provided between the first and second rotators, The housing is open at both ends to allow the first and second rotators to be inserted therein, and a first support groove for supporting both ends of the hinge shaft is formed at one end thereof, and a second support for supporting the hinge protrusions at the other end thereof. A hinge device for a folding mobile terminal having a groove formed therein. The method according to claim 6, The hinge axis, A hinge device for a folding type portable terminal which penetrates a through hole formed in the first rotator and is fixed to the first rotator through a washer. The method according to claim 1, Hinge hinge brackets mounted on both sides of the hinge arms and engaging the hinge arms and forming the rotational central axis, A hinge for a folding type mobile terminal, wherein the first hinge point is formed at each hinge bracket on both sides of the first hinge arm, and the second hinge point is formed at each hinge bracket at both sides of the second hinge arm. Device. 15. The method of claim 14, Each of the first hinge points is provided with a first rotator rotatably supported on both sides of the hinge bracket and the first hinge arm, Second rotators rotatably mounted to both sides of the hinge bracket and the second hinge arm at each of the second hinge points, And the first and second rotators face each other on both sides of the first and second hinge arms and are connected to each other through an elastic member. The method according to claim 1, The hinge device for a folding type portable terminal, wherein the length of the first and second bodies is relatively longer than a width, and the second body is configured to be rotatable in a longitudinal direction with respect to the first body. The method according to claim 1, The hinge device for a folding type portable terminal, wherein the length of the first and second bodies is relatively longer than the width, and the second body is configured to be rotatable along the width direction with respect to the first body.

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