KR20100130036A - Automatic hinge device for mobile phone - Google Patents

Abstract

PURPOSE: An automatic hinge device for a mobile terminal is provided to automatically rotate a display panel from a main body by a one touch operation with weak power. CONSTITUTION: A cam assembly is inserted into a rotation shaft in the lower part of a button unit. When a display panel semi-automatically rotates by a manual operation, the cam assembly contacts a cam. When the button unit operates, the cam assembly uncoupled cam coupling. A main elastic member(600) is arranged in the lower part of the cam assembly in a housing. One end of the main elastic member is fixed to the rotation shaft. The other end of the main elastic member is fixed to the housing while rotation power is provided.

Description

Automatic hinge device for mobile terminal {AUTOMATIC HINGE DEVICE FOR MOBILE PHONE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic hinge device for a mobile terminal, and more particularly, to a mobile terminal for opening a display panel from a main body by one-touch operation, automatically rotating or semi-automatically rotating as a manual operation. An automatic hinge device.

In general, mobile terminals such as mobile phones, PDAs, notebook computers, and DMB phones are widely used to wirelessly use services such as communication and broadcasting while moving in places other than a fixed location.

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

As mentioned above, as the demand and user base rapidly increase in recent years, the portable terminal has been expected to expect a product to which new design or function is given.

The portable terminal is coupled to the main body and the display panel is provided to open and close each other, and can be classified into a folding hinge method, a sliding method, and a swing method according to the opening and closing structure of the cover for the main body.

In addition, as various functions of the mobile terminal are required, the user may not directly edit the multimedia, but the user directly edits the multimedia, or when playing the game, the main body and the cover are hinged to each other along the longitudinal direction to improve the convenience of operation. Unfolding of the body is also very popular with consumers.

In particular, the portable terminal for opening and closing the cover in the folder method is one of the most applied in recent years because of various advantages such as easy to use, less trouble, and a stylish design.

Such a folder-type portable terminal can open and close the display panel in a vertical direction with respect to the main body through a hinge device. The hinge device comprises a fixed cam, a mobile cam, an elastic member, a hinge shaft, and the like. By the interaction of the cover it is possible to open or close the cover at a predetermined angle.

On the other hand, in recent years, an automatic hinge device which operates as a one-touch operation is applied to the above-described folder type portable terminal. When the user presses a button, the display panel is automatically rotated and opened from the main body.

However, as the portable terminal to which the automatic hinge device according to the related art is applied has to open the display panel automatically from the main body, an elastic member that exhibits a large rotational force is applied, and a function of fixing and releasing the rotational force of the elastic member There is a disadvantage that a large force is required for the user to operate the one-touch button.

That is, the automatic hinge device developed for the purpose of improving the convenience of the user requires a greater force for the user to operate the one-touch button for performing the function. There is a problem that cannot be met.

In addition, the automatic hinge device according to the prior art as described above has a problem in that the display panel cannot be opened by manual operation, and in order to realize both the automatic operation by the button operation and the manual operation by the user, the total number of parts is increased. The cost increases, and at the same time the complexity of the operating mechanism makes the design of the product difficult.

Accordingly, the present invention has been invented to solve the above problems, and an object of the present invention is to automatically rotate the display panel from the main body as a one-touch operation with a small force, or as a manual operation of the user according to the user's convenience. The present invention provides an automatic hinge device for a portable terminal that improves ease of use and operability by rotating and opening the display panel semi-automatically from the main body.

The automatic hinge device for a portable terminal according to an embodiment of the present invention for achieving the above object is to rotate the display panel semi-automatically by manual operation with respect to the main body of the portable terminal, or to automatically rotate the display panel by one-touch operation. An automatic hinge device for a portable terminal interconnecting the main body and the display panel, the housing comprising: a housing mounted to the display panel between the main body and the display panel; A rotating shaft having one end inserted into the housing and rotatably mounted; A rotating head fixed to the rotating shaft through a fixing pin while being fitted to the other end of the rotating shaft and fixed to the main body between the main body and the display panel; A button unit installed between the rotary shaft and the rotary head to enable pressing operation on the rotary shaft; A cam assembly fitted to the rotary shaft at a lower portion of the button unit and cam contacted with each other when the display panel is rotated by manual operation; And a main elastic member disposed inside the housing at a lower portion of the cam assembly, and one end of which is fixed to the rotary shaft and the other end of which is fixed to the housing in a state where a rotation force is provided.

The cam assembly may be disposed below the button unit, the first cam being detachably coupled to each other according to the operation of the button unit with the rotary shaft therebetween; A snap ring mounted on the outer circumferential surface of the first cam, the snap ring providing elasticity to the first cam; And a cam protrusion fixed to the rotary shaft at a lower portion of the first cam, to receive elastic force from the main elastic member, and to have a cam contact with the first cam at a position corresponding to each other along the circumferential direction. Characterized in that the second cam is formed.

The button unit includes a trigger button which is fitted to the rotary shaft, a conical body portion inserted into the housing, and a protrusion fitted to the rotary head, the trigger button being slidably reciprocated on the rotary shaft; A spring holder disposed below the trigger button in the housing and fixed to an inner wall of the housing; And a spring interposed between the trigger button and the spring holder to exert elastic force on the trigger button.

The main elastic member is mounted to the housing through a bayonet cap, the both ends are formed in a coil shape having first and second bent portions bent toward the center of the circle, respectively, the first bent portion is fixed to the rotating shaft , The second bent portion is characterized by consisting of a torsion and compression spring is fixed to the bayonet cap.

The rotating shaft is formed at one end with a first locking groove for fixing the first bent portion of the main elastic member, the bayonet cap is installed to be detachably attached to the housing in a cylindrical shape, to fix the second bent portion It characterized in that the second locking groove is formed for.

The bayonet cap is characterized in that the second locking groove is formed on one surface, a tool groove is formed on the other surface, and locking projections are formed on both sides corresponding to the outer circumferential surface, respectively.

The housing has slots formed on both sides of the outer circumferential surface thereof, respectively, and each slot is formed with an insertion groove into which one of the engaging projections can be inserted, and a fixing groove formed at the other end with the engaging projections fixed thereto. It is done.

The housing is formed in a cylindrical shape, characterized in that the mounting grooves are formed respectively on both sides corresponding to the inner peripheral surface along the longitudinal direction.

The first cam is formed on both sides of the outer circumferential surface corresponding to each mounting groove of the housing according to the operation of the button unit and is formed with projections fitted into the respective mounting grooves, and the body portion is formed on one surface corresponding to the button unit. It is characterized in that the operating groove is formed to be mutually coupled.

The first cam has a cam follower formed on one surface of the second cam cam contacting with the cam protrusion, and the cam follower is formed by contacting each cam protrusion from the cam groove and a cam groove into which the respective cam protrusions are completely inserted. It characterized in that the inclined surface is rounded along the circumference of the first cam to move the second cam to the main elastic member side.

The trigger button is characterized in that the pin slot through which the fixing pin penetrates at a position corresponding to the fixing pin is formed along the longitudinal direction of the protrusion.

The spring holder is formed in a ring shape, and on the outer circumferential surface corresponding to each of the mounting grooves, the spring holder is fitted into each of the mounting grooves, and mounting protrusions are formed in the center thereof, respectively, and the housings correspond to the fixing holes. A fitting hole is formed at a position, and each of the fitting holes is provided with mounting pins, and each of the mounting pins is characterized in that it is inserted into the fixing hole of each mounting protrusion.

The second cam is formed in a cylindrical shape, the locking end is formed along the outer peripheral surface circumference to be caught by the housing, the locking jaw is formed in the interior of the housing corresponding to the locking end is formed along the inner peripheral surface circumference .

According to the automatic hinge device for a portable terminal according to the embodiment of the present invention as described above, the button unit is mounted in the state coupled to the cam to lock and release the rotational force of the main elastic member for automatically rotating the display panel from the main body By implementing through the cam assembly to release the cam coupling by the operation of, the user can improve the ease of use by enabling one-touch operation with less force than conventional.

In the present embodiment, when the user directly rotates the display panel by a set angle, the rotational force of the main elastic member can rotate the display panel from the main body to open the display panel, thereby automatically operating through one-touch operation of the button unit and the user's manual operation. By implementing all the semi-automatic operations by the operation, the operability can be improved.

Therefore, in the present embodiment, the display panel can be automatically or manually opened from the main body according to the user's convenience, thereby satisfying the needs of consumers and securing a competitive advantage in the art.

In this embodiment, the display panel can be automatically or semi-automatically opened from the main body by a simple configuration through the button unit and the cam assembly without any additional device, thereby reducing the number of parts, reducing the manufacturing cost, and simplifying the assembly process and parts. The productivity can be improved, and the portable terminal can be miniaturized and slimmed.

In addition, assembling structure can be improved by applying a coupling structure through the bayonet cap to facilitate mounting in a state in which the rotational force and the compressive force of the main elastic member serving to open the display panel are increased.

Accordingly, the automatic hinge device for a mobile terminal according to the embodiment of the present invention simplifies the operating mechanism in automatically opening the display panel by one-touch operation or semi-automatically opening the display panel by manual operation according to the user's convenience and request. This facilitates the product design, and also has the effect of maximizing the commercialization of the mobile terminal.

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

Prior to this, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, which can be replaced at the time of the present application It should be understood that there may be various equivalents and variations.

1 is a perspective view illustrating an example of a portable terminal to which a hinge apparatus for a portable terminal according to an embodiment of the present invention is applied.

Referring to the drawings, the portable terminal 3 to which the automatic hinge device 1 for a portable terminal according to an exemplary embodiment of the present invention is applied basically includes a main body 5 and a display panel 7. According to the user's convenience, the main body 5 and the display panel may be automatically rotated by the user's manual operation, or the semi-automatically opened by rotating the display panel 7 from the main body 5 by a user's manual operation. 7) are interconnected.

Examples of such a mobile terminal 3 may include a general mobile phone of a vertical opening / closing method (commonly referred to in the art as a “folder type”) in which the display panel 7 rotates in a vertical direction with respect to the main body 5. .

In this case, the main body 5 is configured with a keypad portion 9, and the display panel 7 is a lid including a display portion such as a liquid crystal screen and a touch screen, and the keypad portion 9 of the main body 5 and Face to face.

Here, the portable terminal 3 has a structure capable of rotating the display panel 7 up and down from the main body 5 through the automatic hinge device 1 according to the present embodiment.

The portable terminal 3 automatically rotates the display panel 7 in an up and down direction through an automatic hinge device 1 according to an exemplary embodiment of the present invention and automatically operates as a one-touch operation at a set open angle with respect to the main body 5. It can be opened and closed (see FIG. 2).

The portable terminal 3 also has a structure in which the display panel 7 can be opened at a set opening angle with respect to the main body by a user's manual operation (see Fig. 2).

Accordingly, the operation mode of the portable terminal 3 may be divided into a first mode M1, a second mode M2, and a third mode M3 as shown in FIG. 2.

The first mode M1 refers to a case in which the display panel 7 faces the keypad 9 of the main body 5, and the second mode M2 indicates that the display panel is user in the first mode M1. This means that the button is automatically opened at a set angle as the button is pressed inward from the outside of the portable terminal by the one-touch operation of.

The third mode M3 refers to a case in which the display panel 7 is opened at a set angle by a user's manual operation instead of a one-touch operation in the first mode M1.

In order to implement the respective operation modes M1 to M3 as described above, as shown in FIGS. 1 and 2, the portable terminal 3 is automatically hinged between the main body 5 and the display panel 7. Apparatus 1 is applied.

Accordingly, in the portable terminal 3 applied to the exemplary embodiment of the present invention, the display panel 7 faces the keypad portion 9 of the main body 5 (first mode), according to the user's convenience. It can be opened automatically as a one-touch operation with a small force (second mode) or can be opened manually by a user's manual operation (third mode).

Accordingly, the user can automatically open the display panel 7 as a one-touch operation from the main body 5 for convenience, or the user can open and use it manually.

In this specification, the configuration and operation of the automatic hinge device 1 according to the embodiment of the present invention is applied to the folder-type portable terminal 3 as an example, but the present invention is specifically applied to only the mobile phone as mentioned. It is not limited.

That is, the portable terminal 3 according to the exemplary embodiment of the present invention is a portable digital assistant (PDA), a smart phone, a hand held PC, an MP3 / MP4 player, a game machine, a laptop, or the like. It can also be applied to electrical and electronic devices.

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. May be provided with a microprocessor.

On the other hand, in the manner in which the automatic hinge device 1 according to the embodiment of the present invention is applied, the housing 100 is fixed to the display panel 7, and the rotating head 300 connected to the rotating shaft 200 has a main body ( 5) is fixedly mounted, and the housing 100 is rotated together with the display panel 7, for example.

However, on the contrary, the housing 100 may be fixed to the main body 5, and the rotating head 300 may be connected to the display panel 7 to rotate.

Hereinafter, the rotating head 300, which has been described in the former manner, is connected to the rotating shaft 200 and fixed to the main body 5, and the housing 100 is connected to the display panel 7 and together with the display panel 7. It will be described based on the method of rotation.

The configuration of the automatic hinge device 1 according to the exemplary embodiment of the present invention applied to the portable terminal 3 as described above will be described in detail with reference to FIGS. 3 to 9.

3 and 4 are a perspective view and an exploded perspective view of an automatic hinge device for a portable terminal according to an embodiment of the present invention, Figure 5 is a cross-sectional view taken along line AA of Figure 3, Figure 6 is a portable according to an embodiment of the present invention A rear perspective view of a first cam in a cam assembly applied to an automatic hinge device for a terminal, FIG. 7 is a cross-sectional view taken along line BB of FIG. 6, and FIG. 8 is applied to an automatic hinge device for a portable terminal according to an embodiment of the present invention. Figure 2 is a front perspective view of the second cam in the cam assembly, Figure 6 is a front and back perspective view of the bayonet cap according to an embodiment of the present invention.

Referring to the drawings, the automatic hinge device 1 for a portable terminal according to an exemplary embodiment of the present invention is basically a housing 100, a rotating shaft 200, a rotating head 300, a button unit 400, Cam assembly 500, and the main elastic member 600, which will be described in more detail by configuration as follows.

First, in the present embodiment, the housing 100 is mounted to the display panel 7 between the main body 5 and the display panel 7, as shown in FIGS. 3 to 5.

The housing 100 is formed in a cylindrical shape and the mounting grooves 110 are formed on both sides of the inner peripheral surface along the longitudinal direction, respectively.

Each of the mounting grooves 110 is formed in the protruding block 111 protruding integrally along the longitudinal direction on both sides of the outer circumferential surface of the housing 100.

In this embodiment, the mounting groove 110 is described as an embodiment formed in the protruding block 111 protruding integrally on the outer peripheral surface of the housing 100, but is not limited to this, protruding block It may be formed on the inner peripheral surface of the housing 100 without the 111.

The protruding block 111 of the housing 100 is a display panel 7 without being independently rotated in a state in which the housing 100 mounted inside one side of the display panel 7 is mounted on the display panel 7. It will be fixed to rotate together.

In this embodiment, one end of the rotating shaft 200 is inserted into the housing 100 and is rotatably mounted.

The rotating head 300 is fixed to the rotating shaft 200 through a fixing pin 310 in a state of being fitted to the other end of the rotating shaft 200, and between the main body 5 and the display panel 7. Is fixed to the body (5).

The rotating head 300 has a cylindrical shape, and a mounting hole 320 is formed at the center thereof so that the rotating shaft 200 is inserted, and both outer circumferential surfaces thereof are formed with a flat mounting surface.

Here, each mounting surface has a function of fixing to the main body 5 while preventing the rotation in the state that the rotary head 300 is mounted to the main body (5).

The pinhole 330 is formed in the center of each mounting surface so that the fixing pin 310 is inserted.

On the other hand, the rotating shaft 200 is formed in a flat plane, both sides of the other end to which the rotary head 300 is fitted, respectively, and a through hole 210 through which the fixing pin 310 penetrates in the center of each plane. Is formed.

In this embodiment, the button unit 400 is installed to enable the pressing operation on the rotary shaft 200 between the rotary shaft 200 and the rotary head 300.

The button unit 400 is composed of a trigger button 410, a spring holder 420, and a spring 430.

First, the trigger button 410 is inserted into the rotating shaft 200, the body portion 411 is inserted into the housing 100, and the protrusion 413 is fitted to the rotating head 300. Is done.

Here, the body portion 411 is made of a conical shape whose outer diameter is gradually increased from one end to the other end side.

The trigger button 410 has a pin slot 415 through which the fixing pin 310 penetrates at a position corresponding to the fixing pin 310 along the longitudinal direction of the protrusion 413.

The trigger button 410 is installed to be slidably reciprocated on the rotary shaft 200, the protrusion 413 is mounted to protrude at a predetermined interval from the rotary head 300.

That is, the trigger button 410 is set between the rotary shaft 200 and the rotary head 300 with the inner circumferential surface inserted into the rotary shaft 200 and the outer circumferential surface inserted into the rotary head 300. It is mounted to be movable by the interval.

Here, the fixing pin 310 is inserted into the pin hole 330 of the rotating head 300 to sequentially pass through the pin slot 415 of the trigger button 410 and the fixing hole 210 of the rotating shaft 200. In a state, it is fixedly mounted to the rotating head (300).

Accordingly, the trigger button 410 is prevented from being separated between the rotation shaft 200 and the rotation head 300.

And the pin slot 415 of the trigger button 410 is formed long along the longitudinal direction of the protrusion 413, the trigger button 410 is prevented from being separated by the fixing pin 310 is the rotary shaft A function of allowing the reciprocating movement of the pin slot 415 by the length between the 200 and the rotating head 300.

In the present embodiment, the spring holder 420 is disposed below the trigger button 410 inside the housing 100 and is fixed to an inner wall surface of the housing 100.

The spring holder 420 is formed in a ring shape and is fitted into each mounting groove 110 of the housing 100 on an outer circumferential surface corresponding to each mounting groove 110 of the housing 100, and a fixing hole in the center thereof. Mounting protrusions 423 are formed, respectively, 421 is formed.

In the housing 100, fitting holes 113 are formed at positions corresponding to the fixing holes 421.

Each of the fitting holes 113 is equipped with a mounting pin 115 is inserted into the fixing hole 421 of each of the mounting protrusion 423.

Accordingly, the spring holder 420 is fixed to the set position inside the housing 100.

And the spring 430 is made of a coil spring, interposed between the trigger button 410 and the spring holder 420 to exert a repulsive force on the trigger button 410.

That is, when the user presses the protrusion 413 of the trigger button 410, the trigger button 410 is moved toward the spring holder 420 to compress the spring 430, and the compression of the compressed spring 430 The compressive force restores the trigger button 410 back into place after the rotation operation of the display panel 7.

Here, the first washer 440 is preferably interposed between the body 413 and the spring 430 of the trigger button 410.

In the present embodiment, the cam assembly 500 is fitted to the rotary shaft 200 in the lower portion of the button unit 400, the cam contact with each other during the semi-automatic rotation of the display panel 7 by manual operation When the button unit 200 is operated, the cam coupling is released.

As shown in FIGS. 4 to 8, the cam assembly 500 includes a first cam 510, a snap ring 520, and a second cam 530.

First, the first cam 510 is disposed in the lower portion of the button unit 400 inside the housing 100, and the button unit 400 is operated with the rotation shaft 200 interposed therebetween. Depending on the mutually coupled.

Here, the first cam 510 is preferably composed of two semi-circular.

As shown in FIGS. 4 and 6, the first cam 510 is separated according to the operation of the button unit 400 on both sides of the outer circumferential surface corresponding to each mounting groove 110 of the housing 100. A projection 511 fitted into each of the mounting grooves 110 is formed, and an operation groove 513 that is coupled to the body portion 411 of the trigger button 410 on one surface corresponding to the button unit 400. Is formed.

The operation groove 513 is formed in a conical shape whose inner diameter is smaller than the inner diameter of the other end so as to correspond to the body portion 411 of the trigger button 410.

When the body 411 of the trigger button 410 is inserted, the overall inner diameter of the operation groove 513 is the first cam 510 composed of two by the body 411 is the rotary shaft 200 ) Is smaller than the outer diameter of the body portion 411 of the trigger button 410 to be separated from each other.

In the present exemplary embodiment, two first cams 510 are formed in a semicircular shape, but the present invention is not limited thereto. The shape of the housing 100 and the first cam 510 and the first cam 510 are not limited thereto. The number can be changed according to the separation method.

The snap ring 520 is mounted on the outer circumferential surface of the first cam 510, respectively, to provide elasticity to the first cam 510.

In the present embodiment, the second cam 530 is fitted on the rotating shaft 200 at the lower portion of the first cam 510 and is provided with elastic force from the main elastic member 600.

As shown in FIG. 7, the second cam 530 has cam protrusions 531 formed at corresponding positions along the circumferential direction on one surface of the second cam 530 so as to be in cam contact with the first cam 510.

Here, the second cam 530 is formed in a cylindrical shape, the engaging end 533 is formed along the outer peripheral surface circumference to be caught inside the housing 100.

In addition, the housing 100 has a locking step 117 formed along the inner circumference of the inner surface corresponding to the locking end 533.

That is, the second cam 530 is inserted into the housing 100 such that the locking end 533 is caught by the locking jaw 117, thereby preventing movement toward the first cam 510.

Here, it is preferable that the second washer 540 is interposed between the locking end 533 and the locking step 117.

Meanwhile, in the present embodiment, as shown in FIG. 8, the cam follower CF is formed on one surface of the second cam 530 that is in cam contact with the cam protrusion 531. do.

The cam follower CF includes a cam groove 515 in which the cam protrusions 531 are completely inserted so that the first cam 510 and the second cam 530 form a cam defect. An inclined surface 517 rounded around the first cam 510 to move the second cam 530 toward the main elastic member 600 by contact with each cam protrusion 531.

That is, when the display panel 7 is rotated by a set angle by manual operation of a user, the second cam 530 is rotated by the rotational force of the main elastic member 600 while the second cam 530 is rotated. The display panel 7 is opened semi-automatically.

At this time, the cam projections 531 are moved in cam contact with the inclined surface 517 from the cam groove 515, in which the second cam 530 is the opposite direction of the first cam 510 It is moved by the height of the inclined surface 517 toward.

In the present embodiment, the main elastic member 600 is disposed in the lower portion of the cam assembly 500 in the housing 100, one end is fixed to the rotary shaft 200, the other end in the state provided with a rotational force It is fixed to the housing 100.

Here, the main elastic member 600 is mounted to the housing 100 through the bayonet cap 610, and both ends have first and second bent portions 601 and 603 bent toward the circle center, respectively. It is made of coil shape.

The first bent portion 601 of the main elastic member 600 is fixed to the rotary shaft 200, the second bent portion 603 is made of a torsion and compression spring is fixed to the bayonet cap 610. desirable.

On the other hand, the general torsion spring is used to use the rotational force generated at both ends, the compression spring is used to use the elastic force, in the present embodiment the main elastic member 600 and the function of the torsion spring Compression spring can be implemented in a complex way.

Here, in the present embodiment has been described as an embodiment in which both ends of the main elastic member 600 is bent toward the center of the circle, but is not limited to this, according to the application method of the main elastic member 600 Both ends may be formed vertically, or may be shortly bent toward the outside of the circle center, and the shape thereof may be changed.

In this embodiment, the rotating shaft 200 has a first locking groove 220 for fixing the first bent portion 601 of the main elastic member 600 at one end.

And the bayonet cap 610 is, as shown in Figure 9, is detachably installed in the housing 100 in a cylindrical shape, the second hook for fixing the second bent portion 603 on one surface Grooves 611 are formed.

The bayonet cap 610 has the second locking groove 611 formed on one surface thereof, and a tool groove 613 on which the tool is inserted is formed on the other surface thereof, and the locking protrusions 615 are formed on both sides corresponding to the outer circumferential surface thereof. Is formed.

Corresponding to the locking protrusion 615, the housing 100 has slots 120 formed on both sides of the outer circumferential surface of one end portion on which the bayonet cap 610 is mounted.

Each of the slots 120 has an insertion groove 121 into which the respective locking protrusions 615 can be inserted is formed at one end, and a fixing groove 121 at which the locking protrusion 615 is caught and fixed is formed at the other end. .

That is, when the bayonet cap 610 is mounted, the worker opens the second bent portion 603 of the main elastic member 600 through the second locking groove 611 of the bayonet cap 610. In a fixed state, the tool is inserted into the tool groove 613 and rotated to increase the rotational force and the compressive force on the main elastic member 600.

In this state, after each engaging projection 615 is inserted into the insertion groove 121 of the housing 100, the bayonet cap 610 in the fixing groove 123 by rotating along the respective slots 120 again. By hanging the locking projection 615 of the), it is to complete the assembly to the housing 100 while providing a sufficient rotational force and compression force to the main elastic member 600.

Therefore, when the user presses the trigger button 410 of the button unit 400 as a one-touch operation, the cam assembly 500 according to the embodiment of the present invention configured as described above. The first cam 510 of) is separated inside the housing 100.

Then, the cam coupling with the first cam 510 is released from the second cam 530, and the rotary shaft 200 and the rotary head 300 are rotated by the rotational force of the main elastic member 600. As the rotatable head 300 is fixed to the main body 5, the housing 100 is rotated to automatically open the display panel 7 by rotating the display panel 7 from the main body 5.

On the other hand, if the user rotates the display panel 7 from the main body 5 by a manual operation rather than a one-touch operation by a set angle or more, the main elastic member 600 is semi-automatic from the main body 5 by the rotational force of the main elastic member 600. The display panel 7 is rotated and opened.

In this case, the second cam 530 is rotated together with the rotary shaft 200, and at the same time, each cam protrusion 531 is to move the inclined surface 517 from the cam groove 515 of the first cam 510. Accordingly, the second cam 530 is moved toward the main elastic member 600 while being moved in cam contact state.

Hereinafter, the operation and operation of the automatic hinge device 1 for a mobile terminal according to the embodiment of the present invention configured as described above will be described in detail with reference to the drawings and the accompanying drawings.

First, in this embodiment, as shown in Fig. 2, the first mode M1 in which the main body 5 of the portable terminal 3 and the display panel 7 face each other is set as an initial starting point.

In the description of the operation, the rotation of the display panel 7 from the main body 5 for convenience of description will be described separately in the upper and lower directions.

FIG. 10 is a view for explaining a second mode in which the display panel is opened and opened from the main body by a one-touch operation in the automatic hinge device for a portable terminal according to the embodiment of the present invention.

Referring to the drawings, in the first mode M1 in which the main body 5 and the display panel 7 face each other, the trigger button 410 of the button unit 400 is as shown in FIG. 10 (S1). The protrusion 413 protrudes outward of the portable terminal 3.

In this case, the first cam 510 and the second cam 530 of the cam assembly 500, each cam protrusion 531 of the second cam 530 is in the cam groove 515 of the cam follow (CF). It is seated and in a cam-coupled state.

Thus, in the first mode (M1), the maximum cam force is greater than the resilience force of the main elastic member 600 in a state where the cam assembly 500 is cam-coupled to each other, the body through the preload by the cam force (5) or the display panel 7 can prevent the phenomenon such as spreading due to its own weight, thereby improving the merchandise of the portable terminal 3.

In this state, when the user presses the protrusion 413 of the trigger button 410 as a one-touch operation, the trigger button 410 is inserted into the housing 100 as shown in (S2) of FIG. .

In this case, the spring 430 is maintained in a compressed state between the trigger button 410 and the spring holder 420 by the trigger button 410 inserted into the housing 100.

Here, the body portion 411 of the trigger button 410 is inserted into the operation groove 513 of the first cam 510, at this time, the outer diameter of the conical body portion 411 of the same operation groove ( 513 is formed larger than the inner diameter to separate the first cam 510 consisting of two.

Then, the first cam 510 is separated with the rotary shaft 200 interposed therebetween, and the protrusions 511 are inserted into the respective mounting grooves 110 of the housing 100. The second cam 530 is released from cam coupling with the first cam 510.

Here, each of the snap rings 520 mounted on the first cam 510 is maintained in an open state.

When the cam coupling of the first cam 510 and the second cam 530 is released, the main elastic member 600 provides a rotational force to the rotation shaft 200 to rotate the rotation shaft 200.

Then, the housing 100 is rotated in place of the rotating head 300 fixed to the main body 5, whereby the housing 100 moves the display panel 7 upward from the main body 5. It will open automatically by turning toward.

Here, the trigger button 410 is separated from the first cam 510, and then returned to the initial position by the compression force of the spring 430.

That is, the trigger button 410 operated by the user's one-touch operation releases the cam coupling of the cam assembly 500 which fixed the rotational force of the main elastic member 600.

Accordingly, while the main elastic member 600 is released, the portable terminal 3 automatically opens the display panel 7 from the main body 5 by transmitting the rotational force to the rotary shaft 200. The mode M2 is entered.

In this state, when the user rotates the display panel 7 downward, the rotating head 300 and the rotating shaft 200 are rotated, and at the same time, the second cam 530 is also rotated.

Then, each cam protrusion 531 of the second cam 530 is returned to its original position. At this time, the first cam 510, which was separated, is rotated by the compression force of the respective snap rings 520. Are mutually coupled with).

In this state, when the portable terminal 3 enters the first mode M1 in which the display panel 7 faces the main body 5, the first cam 510 is fully engaged, and the first cam 510 is fully engaged. Each cam protrusion 531 of the second cam 530 is seated on each cam groove 515 of the first cam 510 so that the first cam 510 and the second cam 530 are cam-coupled.

As described above, the automatic hinge device 1 according to the present embodiment automatically displays the display panel through the above-described action as a one-touch operation according to the user's convenience in a state where the main body 5 and the display panel 7 face each other. (5) open can be implemented.

Thus, in the present embodiment, as described above, the display panel 7 is automatically rotated and opened from the main body 5 as a one-touch operation, thereby improving user convenience.

FIG. 11 is a view for explaining a third mode in which the display panel is opened and opened from the main body by a user's manual operation in the automatic hinge apparatus for a portable terminal according to the embodiment of the present invention.

Referring to the drawings, in this embodiment, the trigger button 410 of the button unit 400 in the same state as the first mode M1 of FIG. 2 in which the main body 5 and the display panel 7 face each other. As shown in FIG. 11 (S10), the protrusion 413 protrudes outward of the portable terminal 3.

In this case, each of the first cam 510 and the second cam 530 is in the state where the cam protrusions 531 are seated in the cam groove 515 of the cam follower CF and are mutually cam-coupled.

Accordingly, the main elastic member 600 is maintained in a fixed state by the cam assembly 500 coupled to the cam, and the main body 5 and the display panel through the preload by the elastic force of the main elastic member 600. (7) prevents such a phenomenon from spreading due to its own weight.

In this state, the user rotates the display panel 7 upward directly from the main body 5.

Then, the housing 100 is rotated together with the display panel 7 as shown in FIG. 11 (S20), and at the same time, the first cam 530 is also rotated.

Here, the trigger button 410 of the button unit 400 is maintained to protrude to the outside of the portable terminal (3).

In this state, when the user continues to rotate the display panel 7 in the upper direction of the main body 5 and the display panel 7 is rotated more than a set angle, the rotational force of the fixed main elastic member 600 is released. This rotational force causes the housing 100 to automatically rotate.

In this case, the first cam 510 is rotated together with the housing 100, and thus, each cam protrusion 531 of the second cam 530 is separated from the cam groove 515 to thereby incline the inclined surface 517. Therefore, it is moved in the cam contact state.

Then, the second cam 530 is moved toward the main elastic member 600 by the respective cam protrusions 531, and when the display panel 7 is completely opened from the main body 5, each cam The protrusion 531 is located at the highest point of the inclined surface 517.

At this time, the display panel 7 is in a third mode M3 in which the display panel 7 is rotated semi-automatically from the main body 5 in the upward direction and opened as shown in FIG. 2 (M3). .

That is, when the display panel 7 is opened from the main body 5 by manual operation by the user, when the display panel 7 is rotated upward by a set angle or more, the rotational force of the main elastic member 600 is operated. The display panel 7 is rotated semi-automatically to open.

Here, the first cam 510 is rotated along the inclined surface 517 while the cam is in contact with the second cam 530 to move the second cam 530 toward the main elastic member 600. In this case, the preload due to the elastic force of the main elastic member 600 may be prevented from being rotated downward toward the main body 5 by its own weight.

On the other hand, when the display panel 7 is returned to the state of the first mode M1 in the state where the display panel 7 is opened from the main body 5 by a user's manual operation, the above process is reversed. It works as

Here, the main elastic member 600 has a rotational force in the direction opposite to the rotation direction when operated by the rotary shaft 200, and by the compression by the first cam 510 and the second cam 530 The second cam 530 has a rotational force in the inclined direction of the inclined surface 517.

In this state, when the display panel 7 is rotated downward by more than a set angle, the inclined direction of the second cam 530 is changed, and at this time, the cam force is greater than the rotational force of the main elastic member 600. As it acts greatly, the display panel 7 is provided with a preload to rotate downward.

Accordingly, each cam protrusion 531 of the second cam 530 is semi-automatically toward the cam groove 515 in cam contact state along the inclined surface 517 by the cam force and the compressive force of the main elastic member 600. The second cam 530, which has been moved to the main elastic member 600 side, is moved to its original position at the same time.

Then, the cam protrusion 531 of the second cam 530 is seated in the cam groove 515 and cam-coupled to the first cam 510, in which the cam force is greater than the rotational force of the main elastic member 600. As a result, the portable terminal 3 maintains the state of the first mode M1 in which the display panel 7 faces the main body 5.

That is, when the automatic hinge device 1 according to the present invention is closed again from the main body 5 in a state in which the display panel 7 is semi-automatically opened by manual operation, the display panel 7 is lower than the set angle downward. When rotated to, the preload is applied by the cam force to close the display panel 7 semi-automatically.

At this time, the display panel 7 is rotated downward more stably by the rotational force of the main elastic member 600 acting in the opposite direction to the cam force is closed.

As described so far, the automatic hinge device 1 for a portable terminal according to an exemplary embodiment of the present invention uses the display panel 7 when the main body 5 and the display panel 7 face each other. For convenience, it can be opened automatically as a one-touch operation or semi-automatically opened as a manual operation.

Therefore, when the automatic hinge device 1 for a portable terminal according to the embodiment of the present invention configured as described above is applied, the main elastic member 600 which automatically rotates the display panel 7 from the main body 5 is applied. By implementing the function of fixing or releasing the rotational force through the cam assembly 500, which is mounted in the cam-coupled state to release the cam coupling through the operation of the button unit 400, the user can operate one-touch with less force than before. It is possible to improve the ease of use.

In the present embodiment, when the user directly rotates the display panel 7 by a set angle, the rotation force of the main elastic member 600 may rotate and open the display panel 7 from the main body 5 so as to open the button unit. By implementing both the automatic operation through the one-touch operation of the 400 and the semi-automatic operation by the manual operation of the user, the operability can be improved.

Therefore, in the present embodiment, the display panel 7 can be opened automatically or manually from the main body according to the user's convenience, thereby satisfying the needs of consumers and securing a competitive advantage in the art.

In this embodiment, the display panel 7 can be opened automatically or semi-automatically from the main body 5 by a simple configuration through the button unit 400 and the cam assembly 500 without any additional device, thereby reducing the number of parts. It can reduce the manufacturing cost, improve the productivity by simplifying the assembly process and parts, and can reduce the size and slimness of the portable terminal.

In addition, the assembly structure is improved by applying a coupling structure through the bayonet cap 610 so that the display panel 7 can be easily mounted while increasing the rotational force and the compressive force of the main elastic member 600 functioning to open the display panel 7. Can be.

Accordingly, the automatic hinge device 1 for a portable terminal according to the embodiment of the present invention automatically opens the display panel 7 as a one-touch operation or semi-automatically as a manual operation according to the user's convenience and request. In order to facilitate the product design by simplifying the operating mechanism to open, it is possible to further maximize the merchandise of the portable terminal (3).

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this and is given by the person of ordinary skill in the art to the following, Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

1 is a perspective view showing an example of an automatic hinge device for a portable terminal according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating states of operation modes of a portable terminal to which an automatic hinge device for a portable terminal according to an exemplary embodiment of the present invention is applied.

3 is a perspective view of an automatic hinge device for a portable terminal according to an embodiment of the present invention.

4 is an exploded perspective view of an automatic hinge device for a portable terminal according to an embodiment of the present invention.

5 is a cross-sectional view taken along the line A-A of FIG.

6 is a rear perspective view of the first cam in the cam assembly applied to the automatic hinge device for a portable terminal according to an embodiment of the present invention.

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6.

8 is a front perspective view of a second cam in a cam assembly applied to an automatic hinge device for a portable terminal according to an embodiment of the present invention.

9 is a front and rear perspective view of the bayonet cap according to an embodiment of the present invention.

FIG. 10 is a view for explaining a second mode in which the display panel is opened and opened from the main body by a one-touch operation in the automatic hinge device for a portable terminal according to the embodiment of the present invention.

FIG. 11 is a view for explaining an operating state of a third mode in which an automatic hinge device for a portable terminal according to an embodiment of the present invention is opened by opening a display panel from a main body by a user's manual operation.

Claims (12)

In the automatic hinge device for a portable terminal, which rotates the display panel with respect to the main body of the portable terminal as a manual operation or semi-automatically, or interconnects the main body and the display panel to automatically rotate the display panel as a one-touch operation. A housing mounted to the display panel between the main body and the display panel; A rotating shaft having one end inserted into the housing and rotatably mounted; A rotating head fixed to the rotating shaft through a fixing pin while being fitted to the other end of the rotating shaft and fixed to the main body between the main body and the display panel; A button unit installed between the rotary shaft and the rotary head to enable pressing operation on the rotary shaft; A cam assembly fitted to the rotary shaft at the lower portion of the button unit, the cam contacting each other when the display panel is semi-automatically rotated by manual operation, and releasing the cam coupling when the button unit is operated; And A main elastic member disposed inside the housing at a lower portion of the cam assembly, and one end of which is fixed to the rotating shaft and the other end of which is fixed to the housing while a rotational force is provided, The cam assembly A first cam disposed under the button unit, the first cam being detachably coupled to each other according to the operation of the button unit with the rotary shaft interposed therebetween; A snap ring mounted on the outer circumferential surface of the first cam, the snap ring providing elasticity to the first cam; And The cam protrusion is fixed to the rotary shaft in the lower portion of the first cam, is provided with a resilient force from the main elastic member, and the cam protrusions on the one surface corresponding to each other along the circumferential direction so that the cam contact with the first cam An automatic hinge device for a portable terminal, characterized by comprising a second cam formed. The method of claim 1, The button unit A trigger button fitted to the rotary shaft and having a conical body portion inserted into the housing and a protrusion fitted to the rotary head, the trigger button being slidably reciprocated on the rotary shaft; A spring holder disposed below the trigger button in the housing and fixed to an inner wall of the housing; And And a spring interposed between the trigger button and the spring holder to exert elastic force on the trigger button. The method of claim 1, The main elastic member is mounted to the housing through a bayonet cap, and both ends are formed in a coil shape having first and second bent portions bent toward the circle center, respectively. And the first bent portion is fixed to the rotating shaft, and the second bent portion is formed of a torsion and a compression spring fixed to the bayonet cap. The method of claim 3, The rotating shaft is formed with a first engaging groove for fixing the first bent portion of the main elastic member at one end, The bayonet cap has a cylindrical shape and is detachably installed in the housing, wherein the second locking groove for fixing the second bent portion is formed. The method of claim 4, wherein The bayonet cap is the second locking groove is formed on one surface, the tool groove is formed on the other surface, the automatic hinge device for a mobile terminal, characterized in that the locking projections are formed on both sides corresponding to the outer peripheral surface. The method of claim 5, The housing has slots formed on both sides of the outer circumferential surface thereof, respectively, and each slot is formed with an insertion groove into which one of the engaging projections can be inserted, and a fixing groove formed at the other end with the engaging projections fixed thereto. An automatic hinge device for a portable terminal. The method of claim 2, The housing is formed in a cylindrical shape, the automatic hinge device for a mobile terminal, characterized in that the mounting grooves are formed respectively on both sides corresponding to the inner peripheral surface along the longitudinal direction. The method of claim 7, wherein The first cam is formed on both sides of the outer circumferential surface corresponding to each mounting groove of the housing according to the operation of the button unit and is formed with projections fitted into the respective mounting grooves, and the body portion is formed on one surface corresponding to the button unit. Automatic hinge device for a mobile terminal, characterized in that the operating groove is formed to be coupled to each other. The method of claim 1, The cam follow is formed on one surface of the first cam is in contact with the cam projection of the second cam, The cam follow is a cam groove in which the cam projections are completely inserted, and the cam grooves are inclined rounded along the circumference of the first cam so as to move the second cam toward the main elastic member by contact with the cam projections. An automatic hinge device for a portable terminal, characterized in that made. The method of claim 2, The trigger button is an automatic hinge device for a mobile terminal, characterized in that the pin slot through which the fixing pin penetrates at a position corresponding to the fixing pin along the longitudinal direction of the protrusion. The method of claim 7, wherein The spring holder is formed in a ring shape, on the outer circumferential surface corresponding to each of the mounting grooves are fitted into the respective mounting grooves, and mounting protrusions having a fixing hole in the center are formed, respectively. The housing is formed with fitting holes at positions corresponding to the fixing holes, and each of the fitting holes is equipped with mounting pins, And each mounting pin is inserted into the fixing hole of each mounting protrusion. The method of claim 1, The second cam is formed in a cylindrical shape, the engaging end is formed along the outer peripheral surface circumference to be caught by the housing, and the locking jaw is formed along the inner peripheral surface circumference in the interior of the housing corresponding to the locking end Automatic hinge device for mobile terminal.

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