KR20110005445U - Hinge device for mobile phone of folding type - Google Patents

Abstract

The hinge device for a portable terminal of a folding method according to an exemplary embodiment of the present invention, in a portable terminal having a first body and a second body opened and closed by a folding method, is configured to be connected to the first and second bodies. A hinge device, comprising: 에) a hinge housing fixed to the first body, ii) a hinge shaft mounted in an inner center direction of the hinge housing, and ⅲ) a hinge shaft mounted inside the hinge housing. A movable cam installed to be movable, iii) an elastic member fitted into the hinge shaft within the hinge housing and exerting elasticity with the movable cam, and iii) rotatable to the hinge shaft from the outside of the hinge housing. A rotary cam inserted into the cam and contacting the cam with each other, and ⅵ) wrapped around the rotary cam and rotatably installed on the hinge shaft, between the outer circumferences of the rotary cam. A cover member is formed to form a predetermined gap and is fixed to the second body.

Mobile terminal, folder, body, cam, cover, open and close

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 mobile terminal, and more particularly, to a folding mobile terminal capable of generating an opening and closing sound such as a click collision sound when opening and closing a cover of a main body. A hinge device.

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.

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.

In the related art, the folding type hinge device for a portable terminal is composed of a housing, a rotating cam, a mobile cam, an elastic member, and a hinge shaft, and the interaction of these components enables the cover to be opened or closed at a predetermined angle. .

On the other hand, in recent years, targeting the young consumer who is sensitive to the sensation has been commercialized folding type mobile terminal that can generate the opening and closing sound such as click collision sound when opening and closing the cover.

The folding portable terminal capable of generating the opening and closing sound of the cover is formed by forming a gap between the cover arm and the hinge arm of the body and the rotating cam and the housing of the hinge device, respectively, or by forming a gap between the mobile cam and the housing. As a click collision sound of the component through the opening and closing of the cover to generate a sound.

However, in the prior art, by forming a gap between the hinge arm of the cover and the main body and the rotating cam and the housing, and between the mobile cam and the housing as described above, the opening and closing sound of the cover can be generated through the gap, As a result, when the cover is opened and closed, the flow of the cover is generated, and the durability and reliability of the entire terminal are degraded, and the life span is shortened.

Therefore, an exemplary embodiment of the present invention has been created to improve the problems as described above, which can further improve the durability and reliability of the entire terminal, and can be implemented to open and close the sound of the cover while further extending the life. Provided is a hinge device for a folding portable terminal.

To this end, a folding device hinge device according to an exemplary embodiment of the present invention, in a mobile terminal having a first body and a second body that is opened and closed by a folding method, is connected to the first and second body A hinge housing fixed to the first body, ii) a hinge shaft mounted in an inner center direction of the hinge housing, and iii) the hinge inside the hinge housing. A movable cam movably mounted to the shaft, iii) an elastic member fitted into the hinge shaft within the hinge housing and exerting elasticity with the movable cam, and iii) a hinge shaft from the outside of the hinge housing. A rotatable cam rotatably fitted and in contact with the cam and the cam, and i) wrapped around the rotatable cam and rotatably installed on the hinge shaft, wherein Forming a predetermined gap between the opened and includes a cover member that is installed to be fixed to the second body.

The folding type hinge device for a portable terminal may implement an opening and closing sound due to a collision between the rotating cam and the cover member by the gap when the rotating cam rotates while the cam is in contact with the mobile cam.

In the folding-type hinge device for a mobile terminal, the cover member is formed as a square forming a shape with the rotary cam, and has a second coupling hole in which one end is opened and the hinge shaft can be fitted to the other end. Can be formed.

In the folding type hinge device for a portable terminal, the hinge housing may have a first coupling hole through which one end is opened and the hinge shaft may be fitted to the other end, and a flat part may be formed on both sides of an outer circumferential surface thereof.

In the folding-type hinge device for a mobile terminal, the hinge shaft may have a locking protrusion formed at one end of the hinge shaft to engage with the cover member.

In the folding-type hinge device for a mobile terminal, a ring groove may be formed at the other end of the hinge shaft, and the ring groove may be provided with a ring member for coupling the hinge shaft and the hinge housing.

In the folding-type hinge device for a portable terminal, the mobile cam may form a pair of first cam protrusions in cam contact with the rotary cam, and may form a planar section between the first cam protrusions.

In the folding-type hinge device for a portable terminal, the rotary cam may form a pair of second cam protrusions corresponding to each first cam protrusion of the mobile cam.

The folding type hinge device for a mobile terminal may implement a click opening of the first and second bodies by engaging the first cam protrusion of the mobile cam with the second cam protrusion of the rotary cam.

The folding type hinge device for a mobile terminal may implement a free-stop opening of the first and second bodies while contacting a second cam protrusion of the rotary cam in a planar section of the mobile cam. .

In the folding-type hinge device for a mobile terminal, the cover member may be in close contact with one side of the rotary cam, and may be installed in close contact with the locking projection.

According to the exemplary embodiment of the present invention as described above, when opening and closing the second body for the first body, the opening and closing sound is generated through a gap between the rotating cam and the cover member and the user feels auditory through the opening and closing sound. Since it can be provided, it is possible to further improve the marketability of the mobile terminal.

In addition, in the present embodiment, since the gap is formed only between the rotary cam and the cover member, and the gap is not formed for the coupling portion of the remaining configuration, the durability of the entire terminal does not occur when the portable terminal is opened or closed. And reliability can be improved, and the life can be extended.

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. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and like reference numerals designate like elements throughout the specification.

In addition, since the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, the present invention is not necessarily limited to those shown in the drawings.

In the drawings, the thickness of layers, films, panels, regions, etc., are exaggerated for clarity. In the drawings, the thicknesses of parts and regions are exaggerated for clarity.

1 is an exploded perspective view showing a folding type hinge device for a mobile terminal according to an exemplary embodiment of the present invention, FIG. 2 is a cross sectional view of FIG. 1, and FIG. 3 is a cross-sectional view taken along line AA of FIG. 2. to be.

Referring to the drawings, the mobile terminal 1 to which the hinge device 100 is applied according to an exemplary embodiment of the present invention basically performs a mobile communication function such as voice / video call, message transmission, data input, DMB, For example, a mobile communication terminal 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").

Here, the portable terminal 1 constitutes a keypad portion (not shown) on the front surface of the first body 2, and the keypad portion of the first body 2 on the front surface of the second body 3. The display part (not shown) is comprised as a liquid crystal panel or a touch screen which face | surfaces.

Until now, the hinge device 100 according to the exemplary embodiment of the present invention has been applied to a general mobile phone capable of mobile communication as the mobile 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.

The hinge device 100 according to the exemplary embodiment of the present invention, which is applied to the folding-type portable terminal 1 as described above, can improve durability and reliability of the entire terminal, and can extend the service life of the first and the second devices. It is made as a structure that can implement the opening and closing sounds of the two bodies (2, 3).

To this end, the folding device hinge device 100 according to an exemplary embodiment of the present invention is basically a hinge housing 10, a hinge shaft 20, a mobile cam 30, an elastic member ( 40), the rotary cam 50, and the cover member 60 is included, and this will be described for each configuration as follows.

In the present embodiment, the hinge housing 10 is fixedly fitted to the hinge arm 5 of the first body 2 in the portable terminal 1.

The hinge housing 10 is formed as a cylindrical body whose one end is opened and the first coupling hole 11 is formed at the other end, and has planar portions 13 parallel to each other on both sides of the outer circumferential surface thereof. In this case, the remaining sides except for the planar portion 13 is formed in a round shape.

In the present embodiment, the hinge shaft 20 is for supporting rotation of the first and second bodies 2 and 3 and is mounted in the inner center direction of the hinge housing 10.

The hinge shaft 20 is inserted into the housing 10 along the longitudinal direction of the hinge housing 10 and is rotatably fitted into the first coupling hole 11, and at one end, a predetermined friction as a head portion. A circular locking projection 21 having a face is formed.

In addition, a ring groove 23 is formed in the outer circumferential direction at the other end of the hinge shaft 20, that is, the end protruding to the outside through the first coupling hole 11 of the housing 10.

In this case, the ring member 90 is mounted to the ring groove 23 as an E-ring for coupling the hinge housing 10 and the hinge shaft 20.

In this embodiment, the movable cam 30 is installed to be movable along the axial direction on the hinge shaft 20 in the interior of the hinge housing 10, the housing so that it can be inserted into the hinge housing 10 It consists of a shape corresponding to (10).

The movable cam 30 forms a first insertion hole 31 into which the hinge shaft 20 can be fitted, and the rotary cam 50 on one surface facing the rotary cam 50 described later. A pair of first cam protrusions 33 in cam contact are formed, and a planar section 35 is formed between the first cam protrusions 33.

Here, the first cam protrusion 33 is formed to correspond to each other at 180-degree intervals on the edge side of the first insertion hole (31).

The elastic member 40 is to exert a resilient force to the mobile cam 30 in the hinge housing 10, it is made of a compression coil spring fitted to the hinge shaft 20 and supported by the mobile cam 30. .

That is, the elastic member 40 is supported on the inner wall surface of the hinge housing 10, one end of the inside of the hinge housing 10, the other end is supported by the mobile cam (30).

In the present embodiment, the rotation cam 50 as mentioned above is rotatably fitted to the hinge shaft 20 on the outside of the hinge housing 10, and is installed to be in cam contact with the mobile cam 30.

The rotary cam 50 has a substantially rectangular cross section and has a rounded corner, and forms a second insertion hole 51 into which the hinge shaft 20 can be fitted.

The rotary cam 50 has a pair of second cam protrusions 53 corresponding to the first cam protrusion 33 of the mobile cam 30 on the surface facing the mobile cam 30 in the second insertion hole 51. Are formed to correspond to each other at 180-degree intervals on the edge side.

In the present embodiment, the cover member 60 is rotatably installed on the hinge shaft 20 while surrounding the rotary cam 50 on the outside of the hinge housing 10, the second body (in the portable terminal 1) The hinge arm 6 of 3) is forcibly fitted and fixedly mounted.

That is, the cover member 60 surrounds the opposite side of the outer circumference of the rotating cam 50 and the surface on which the second cam protrusion 53 is formed, and the inner wall surface is in close contact with the opposite surface of the rotating cam 50. The friction surface of the engaging projection 21 of the hinge shaft 20 is provided in close contact with the outer wall surface corresponding to the inner wall surface.

The cover member 60 is formed as a square to form a combination with the rotary cam 50, one end is opened so that the rotary cam 50 can be fitted, the hinge shaft 20 is fitted to the other end The second coupling hole 61 is formed.

Here, a predetermined gap G is formed between the outer circumference of the rotary cam 50 and the inner circumferential surface of the cover member 60.

Briefly explaining the assembling process of the hinge device 100 in an exemplary embodiment of the present invention configured as described above, in the first embodiment the other end of the hinge shaft 20 to the first end of the cover member 60 2 Insert into the coupling hole (61). Then, the hinge shaft 20 stops at the outer wall of the cover member 60 with the locking protrusion 21.

Subsequently, the other end of the hinge shaft 20 is inserted into the second insertion hole 51 of the rotary cam 50, and the rotary cam 50 is inserted into the cover member 60. Another end portion is inserted into the first insertion hole 31 of the mobile cam 30 to cam-couple the mobile cam 30 and the rotary cam 50 to each other.

Then, the elastic member 40 is mounted on the hinge shaft 20, and the other end of the hinge shaft 20 is pressed into the first coupling hole in the hinge housing 10 while the elastic member 40 is compressed. When the ring member 90 is inserted into the ring groove 23 at the other end of the hinge shaft 20 protruding outwards through the first coupling hole 11 and inserted into the 11, Assembly of the hinge device 100 is completed.

Thus, the mobile cam 30 is in close contact with the rotary cam 50 by the elastic force of the elastic member 40 and the cam contact with the rotary cam 50, the rotary cam 50 is the second cam projection (53) ) Is opposite to the inner surface of the cover member 60.

In addition, the engaging projection 21 of the hinge shaft 20 is in close contact with the outer wall surface corresponding to the inner wall surface of the cover member 60, and between the outer periphery of the rotary cam 50 and the inner peripheral surface of the cover member 60. The predetermined gap G is formed.

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

First, in this embodiment, the close mode in which the first body 2 and the second body 3 of the portable terminal 1 face each other at 0 degrees is set as an initial starting point.

In the close mode, as shown in FIG. 4A, the second cam protrusion 53 of the rotary cam 50 is in close contact with the inclined section of the first cam protrusion 33 in the moving cam 30.

Therefore, the rotational cam 50 has a rotational force acting in a direction in which the second cam protrusion 53 is engaged with the first cam protrusion 33 of the movable cam 30 by the elastic force of the elastic member 40.

Thus, in the close mode, as the rotational force acts on the rotation cam 50 in the closing direction of the second body 3, the second body 3 as the cover has a predetermined torque with respect to the first body 2 as its rotational force. To provide a preload.

This means that when the first body 2 and the second body 3 are closed at 0 degrees, even if the position of the portable terminal 1 is changed, the second body 3 is connected to the first body 2 through the preload. Since it is possible to prevent a phenomenon such as being caused by its own weight, it is possible to further maximize the merchandise of the portable terminal (1).

In the above closed state, when the second body 3 is rotated upward in a predetermined section, the rotary cam 50 also rotates together with the cover member 60, and the second cam protrusion of the rotary cam 50 is rotated. 53 slips in close contact with the inclined section of the first cam protrusion 33 of the mobile cam 30 to reach the planar section 35 of the mobile cam 30.

Here, the second cam protrusion 53 of the rotary cam 50 presses the mobile cam 30 until the moment when it reaches the plane section 35 of the mobile cam 30, the mobile cam 30 is shown in FIG. As shown in 4b, the elastic member 40 is maximally compressed and moved in the pressing direction of the rotary cam 50 along the hinge shaft 20.

Therefore, the second cam protrusion 53 of the rotary cam 50 presses the mobile cam 30 and is positioned in the plane section 35 of the mobile cam 30, thereby allowing the second body of the portable terminal 1 to be moved. (3) is a click open method, which rotates for a predetermined period along the upper direction and maintains a stopped state (see FIG. 4C).

In this process, in this embodiment, since the predetermined gap G is formed between the outer circumference of the rotary cam 50 and the inner circumferential surface of the cover member 60, the rotary cam 50 rotates and the second cam thereof. When the projection 53 reaches the planar section 35 of the mobile cam 30 while slipping in close contact with the inclined section of the first cam protrusion 33 of the mobile cam 30, the projection G may reach the gap G. As a result, the rotating cam 50 collides with the inner circumferential surface of the cover member 60 to generate a collision sound (opening and closing sound).

In such a state, when the second body 3 is further rotated upward in a predetermined section, as shown in FIG. 4C, the second cam protrusion 53 of the rotary cam 50 moves in the plane section of the mobile cam 30 ( 35 is in close contact with the elastic restoring force of the elastic member 40, and in this section, the free-stop opening of the second body 3 is realized.

That is, in the above process, the rotary cam 50 is in close contact with the inner wall surface of the cover member 60 by the elastic force of the elastic member 40 and the outer wall surface of the cover member 60 is the locking projection of the hinge shaft 20 ( 21, the second body 3 stops rotation at any angle and the position of the mobile terminal 1 is reduced by the pressing force of the rotary cam 50 and the friction force between the locking projection 21 and the cover member 60. Even if it is changed, the opening angle is maintained.

Then, when the second body 3 is rotated further for a predetermined period in the upward direction, as shown in FIG. 4D, the second cam protrusion 53 of the rotary cam 50 is the planar section 35 of the mobile cam 30. ) And slips in close contact with the inclined section of the first cam protrusion 33 to be engaged with the first cam protrusion 33.

In the above process, the rotary cam 50 is rotated by the elastic restoring force of the elastic member 40, the movement cam 30 is moved to the original position along the hinge axis (20).

Therefore, as the rotary cam 50 rotates by the elastic restoring force of the elastic member 40, the elastic restoring force acts as a rotational force capable of rotating the second body 3 in the open direction. The second body 3 is automatically rotated by a predetermined section by the rotational force.

As a result, the second body 3 implements a click opening at about 180 degrees with respect to the first body 2. The rotation cam 50 is driven by the gap G, which is also mentioned in this process. It collides with the inner circumferential surface of the cover member 60 to generate a collision sound (opening and closing sound).

On the other hand, in the state in which the second body 3 is completely open with respect to the first body 2 as described above, when the second body 3 is closed, the second body 3 operates in the reverse order to the above procedure, and is also described in the closing section. Since the collision sound is generated through the action as described above, the description of the opposite operation and action will be omitted.

As described so far, the folding device hinge device 100 according to an exemplary embodiment of the present invention, when opening and closing the second body 3 with respect to the first body 2, the rotary cam 50 The opening and closing sound may be generated through the gap G between the cover member 60 and the cover member 60.

Therefore, in the present embodiment, it is possible to provide an audible feeling to the user by the opening and closing sound generated when the portable terminal 1 is opened and closed, thereby further improving the merchandise of the portable terminal 1.

In the present embodiment, the gap G is formed only between the rotary cam 50 and the cover member 60, and the engaging portions of the remaining components, for example, the hinge housing 10 and the cover member 60 and the respective hinge arms. Since no gap is formed between the mobile cams 30 and the hinge housing 10 between 5 and 6, the entire terminal does not occur when the portable terminal 1 is opened or closed. Its durability and reliability can be improved and its life can be extended even longer.

Although the preferred embodiment of the present invention has been described above, the present invention is not limited thereto, and it is possible to carry out various modifications within the scope of the utility model registration claims and the detailed description of the invention and the accompanying drawings. It is also natural to fall within the scope of the present invention.

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

1 is an exploded perspective view illustrating a folding device hinge device according to an exemplary embodiment of the present invention.

2 is a cross sectional view of FIG. 1.

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

4A to 4D are diagrams for describing an operation of a folding device hinge device according to an exemplary embodiment of the present invention.

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

10 ... hinge housing 11 ... first coupling hole

20 ... Hinge Shaft 21 ... Jam

30 ... moving cam 33 ... turning the first cam

40 ... elastic member 50 ... rotary cam

53 ... 2nd cam projection 60 ... Cover member

61 ... 2nd engagement hole G ... gap

Claims (9)

A portable terminal having a first body and a second body opened and closed by a folding method, the hinge device being configured to be connected to the first and second bodies. A hinge housing fixed to the first body; A hinge shaft mounted in an inner center direction of the hinge housing; A mobile cam movably installed in the hinge shaft in the hinge housing; An elastic member fitted to the hinge shaft in the hinge housing and exerting elastic force with the moving cam; A rotary cam rotatably fitted to the hinge shaft at an outer side of the hinge housing and in contact with the mobile cam; And A cover member surrounding the rotary cam and rotatably installed on the hinge shaft, forming a predetermined gap between the outer circumferences of the rotary cam and being fixed to the second body. Folding device for a hinge device for a mobile terminal comprising a. According to claim 1, When the rotary cam rotates while the cam is in contact with the mobile cam, the hinge hinge device for a mobile terminal of the folding type to implement the opening and closing sound according to the collision of the rotary cam and the cover member by the gap. According to claim 1, The cover member, A hinge device for a folding type portable terminal, which is formed as a square forming a shape in combination with the rotary cam, and forms a second coupling hole in which one end is opened and the hinge shaft is fitted in the other end. According to claim 1, The hinge housing has a folding type hinged device for a portable terminal, the first end of which is open and the other end forms a first coupling hole into which the hinge shaft can be fitted, and a flat part is formed on both sides of an outer circumferential surface thereof. According to claim 1, The hinge axis, Folding device hinge device for forming a locking projection formed on one side end engaging with the cover member. According to claim 1, The other end of the hinge shaft is formed with a ring groove, the ring groove hinge device for a folding type mobile terminal is provided with a ring member for coupling the hinge shaft and the hinge housing. According to claim 1, The mobile cam forms a pair of first cam protrusions in cam contact with the rotary cam, and forms a planar section between the first cam protrusions. The rotating cam hinge device for a folding type mobile terminal to form a pair of second cam projection corresponding to each of the first cam projection of the mobile cam. 8. The method of claim 7, The second cam protrusion of the rotary cam is engaged with the first cam protrusion of the mobile cam to implement click opening of the first and second bodies. The hinge device of a folding type mobile terminal which implements free-stop opening of the first and second bodies while the second cam protrusion of the rotary cam contacts the planar section of the mobile cam. 6. The method of claim 5, The cover member, A hinge device for a folding type mobile terminal that is in close contact with one side of the rotating cam and is installed in close contact with the locking projection.

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