KR20110034189A - Hinge device for mobile terminal - Google Patents

Abstract

The hinge device for a portable terminal of the present invention is coupled to the first hinge shaft 110, the second hinge shaft 120 which is installed at a distance from the first hinge shaft, and the first and second hinge shafts, respectively. A pair of rotating bodies 140 each having an interlocking gear and a rotating cam 150 integrally connected to each other, and the first and second hinge shafts are connected to each other, and are installed in contact with the rotating cam. A linear movable cam 160 capable of linear movement along the hinge axis, a pair of elastic members 170 inserted into the first and second hinge axes to impart elastic force to the linear movement cam, and one side of the pair of rotating bodies In the first and second hinge shafts to each other, but the first connecting member 180 for connecting the first and second hinge shafts rotatably respectively, and the first and second hinge shafts on one side of the pair of elastic members A second connecting member 190 for connecting the first and second hinge shafts to be rotatable, respectively, and both ends of the first hinge shaft. And a first bracket 210 fastened to both ends of the second bracket and fixed to the main body, and a second bracket 220 fastened to both ends of the second hinge shaft and fixed to the cover.

Description

Hinge Apparatus for Mobile Terminals {HINGE APPARATUS FOR MOBILE PHONE}

The present invention relates to a hinge device for a portable terminal, and more particularly, a portable terminal for connecting two units in a device having two units coupled to each other to be folded or unfolded (for example, a mobile phone, a PDA, a notebook, etc.). It relates to a hinge device for.

In general, in order to wirelessly use services such as communication and broadcasting while moving in a place other than 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 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.

The portable terminal is a main body provided with a keypad and a cover provided with a display panel are coupled to each other so as to be open and close, and can be classified into a folding method, a sliding method, and a swing method according to the opening and closing structure of the cover for the main body. In particular, the portable terminal for opening and closing the cover in a folder method is one of the most applied in recent years due to various advantages such as easy to use, less trouble, and a stylish design.

1 illustrates an example of a portable terminal to which a conventional hinge device is applied, and the portable terminal is divided into a main body 3 and a cover 6, and the main body 3 includes a key input unit 4, a talker unit 5, and the like. The cover 6 is provided with a display unit 7, a sign language unit 8, and the like. Here, the lid 6 is connected via the main body 3 and the hinge device 10 to open and close.

Figure 2 is an exploded perspective view showing a hinge device for a conventional portable terminal, Figure 3 is an assembled cross-sectional view showing the hinge device shown in FIG. As shown in Figures 2 and 3, the hinge device 10 is a cylindrical outer cylinder 11, a fixed cam member 12, which one end is rotatably assembled inside the outer cylinder 11, The mobile cam member 14 installed and assembled to be movable along the longitudinal direction inside the outer cylinder 11, and the fixed cam member 12 and the mobile cam member 14 installed inside the outer cylinder 11 are always It consists of an elastic member 16 for applying a force to contact each other, and a hinge shaft 18 for supporting the outer cylinder 11 and the fixed cam member 12 in a rotatable state.

The hinge device 10 configured as described above is mainly the outer cylinder 11 is assembled in the hole (6b) of the upper assembly piece (6a) is formed in the center of the edge of the cover 6 of the mobile terminal, fixed cam member 12 ) Is assembled to the hole 3b of the lower assembly piece 3a formed on both sides of the edge of the portable terminal main body 3.

However, when using the hinge device for a conventional portable terminal configured as described above should have a structure in which the upper assembly piece and the lower assembly piece are formed on the cover and the main body of the portable terminal, respectively, to provide a factor for increasing the thickness of the portable terminal. do. Therefore, it is very difficult to slim down, downsize, and refine the design of the mobile terminal. Furthermore, since the upper assembly piece and the lower assembly piece protrude from each other, there is a risk of cracking, and when the portable terminal is manufactured in a slim type, the strength of the upper assembly piece and the lower assembly piece may become weak.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, and as the main parts have a structure exposed to the outside of the portable terminal, it is possible to reduce the thickness of the main body and the cover of the portable terminal It is an object of the present invention to provide a hinge device for a portable terminal capable of slimming, miniaturizing, and designing a terminal.

In addition, another object of the present invention is to provide a hinge device for a portable terminal, which is easy to manufacture by using two connection members having a simple structure so that a pair of rotating bodies can rotate smoothly in engagement with each other.

In addition, the present invention has another object to provide a hinge device for a mobile terminal capable of limiting the rotation angle through a simple stopper surface for limiting the rotation angle of the cover on the surface of the pair of rotors.

The present invention relates to a hinge device for connecting a main body and a cover of a mobile terminal, the first hinge axis, the second hinge axis which is provided at a distance from the first hinge axis, and coupled to the first and second hinge shafts, respectively. And a pair of rotating bodies each having a rotating gear and a rotating cam integrally engaged with each other, the first and second hinge shafts are connected to each other, and are installed in contact with the rotating cams to form a straight line along the first and second hinge axes. A movable linear movable cam, a pair of elastic members inserted along the first and second hinge axes to impart elastic force to the linear movable cam, and the first and second hinge shafts connected to one side of the pair of rotating bodies. The first and second hinge shafts are connected to each other so that the first and second hinge shafts are rotatably connected, and the first and second hinge shafts are rotatable on one side of the pair of elastic members, respectively. A second connecting member connected to each other, and both end portions of the first hinge Is engaged with the shaft side end portions characterized in that the first bracket, and the side end portions to attach to the body and a second bracket fixed to the cover can be fastened to each side end portion in the second hinge axis.

The pair of rotors of the present invention may each have a stopper surface for limiting the rotational angle of the cover in some section of the geared surface.

The second connecting member of the present invention may further function as a spacer to fill the empty space generated by the small length occupied by the rotating body, the linear moving cam and the elastic member in comparison with the length of the first and second hinge shafts.

The surface of the second connection member of the present invention may further have a seating surface formed lower than both sides thereof and used as a space in which a flexible printed cable connecting the main body and the cover is installed.

Engaging grooves are formed at both end portions of the first and second hinge shafts of the present invention, respectively, and the engaging grooves are in close contact with one side surfaces of the first and second connecting members, respectively. The first and second hinge shafts may be installed, and fastening rings may be installed to prevent play between the parts.

The present invention may further include a case member which surrounds and protects a pair of rotating bodies, a linear moving cam, a pair of elastic members, first and second connecting members, and a fastening ring together.

The present invention can reduce the thickness of the main body and the cover of the mobile terminal as the main parts have a structure that is exposed to the outside of the mobile terminal, it is possible to slim down, miniaturized and refine the design of the mobile terminal.

In addition, the present invention has the advantage of convenient manufacturing by using two connecting members of a simple structure so that a pair of rotating bodies can rotate smoothly to mesh with each other.

In addition, the present invention has the advantage that the rotation angle can be limited through a simple stopper surface for limiting the rotation angle of the cover on the surface of the pair of rotors.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a hinge device for a portable terminal according to the present invention will be described in detail.

4 and 5 are an exploded perspective view and an assembled perspective view of a hinge device for a portable terminal according to an embodiment of the present invention, and FIGS. 6 and 7 show only some components of the hinge device for a portable terminal shown in FIG. It is a perspective view which shows the closed state and the open state, respectively. 8 and 9 are separate and assembled perspective views showing the hinge device for a mobile terminal according to an embodiment of the present invention at different angles, and FIGS. 10 and 11 are views of the hinge device for the mobile terminal shown in FIG. 8. Only a few components are shown to show a closed state and an open state, respectively.

As shown in Figures 4 to 11, the hinge device 100 for a mobile terminal according to this embodiment is the first hinge shaft 110, the first hinge shaft 110 is provided with a predetermined distance from the first 2 hinge shafts 120, a pair of rotary bodies 140, which are respectively coupled to the first hinge shaft 110 and the second hinge shaft 120, the rotary cam 150 is integrally formed, and the rotary cam ( 150 of the linear movement cam 160 installed in contact with the state, the pair of elastic members 170 that always apply force to the linear movement cam 160, and the first and second hinge shafts 110 and 120 First and second connecting members 180 and 190 and first and second connecting members 180 and 190 which connect both sides to each other and connect the first and second hinge shafts 110 and 120 to be rotatable, respectively. Two pairs of fastening rings 130 fitted around both sides of the first and second hinge shafts 110 and 120 so as to be located at both sides of the respective ends, and both ends of both ends of the first hinge shaft 110. First bracket 210 coupled to each other, and both ends of the second hinge Consists of the second bracket 220 is fastened to each end of the 120.

The first and second hinge shafts 110 and 120 are coupled and installed to rotate integrally with the rotating body 140. The rotating body 140 is made using a pair of gears which mesh with each other and rotate. That is, the gear 140 is formed along the circumference of the rotating body 140, and the gear may be configured to be continuously formed at equal intervals along the surface circumference or may not be formed in some sections.

The hinge device 100 for the portable terminal of this embodiment is configured to have a stopper surface 142 having a mount height of the gear without forming a gear in a portion of the rotating body 140 which is engaged with and rotated, thereby covering the cover of the portable terminal. It can limit the rotation angle of. In general, since the cover (first unit or second unit) of the portable terminal is configured to open about 150 to 160 degrees with respect to the main body (second unit or first unit), the stopper surface of the rotating body 140 in this embodiment. By forming 142 at a point of 150 to 160 degrees, the rotation angle of the cover of the mobile terminal can be limited. At this time, the position of the stopper surface 142 formed on the rotating body 140 may be configured to open to a position of 150 ~ 160 ° or less. By the rotating body 140 as described above, the first hinge shaft 110 and the second hinge shaft 120 rotate in opposite directions.

One end of the rotating body 140, the rotary cam 150 is integrally formed, the linear cam (160) is always in close contact with the rotary cam 150 by the elastic member 170. The linear movement cam 160 is installed to be linearly movable along the longitudinal direction of the first hinge shaft 110 and the second hinge shaft 120.

The linear movement cam 160 is installed in a state in which the first hinge shaft 110 and the second hinge shaft 120 are connected to each other and in contact with the pair of rotating cams 150, and the first and second hinges. It is configured to be linearly moved along the axes (110, 120). That is, the linear movement cam 160 is configured to have a through hole penetrating in a linearly movable size along the first and second hinge axes 110 and 120 and a cam surface on one side thereof.

The elastic member 170 is installed to always apply a force to the linear cam (160) so that the rotary cam 150 and the linear cam (160) in close contact with each other. The elastic member 170 is formed using a compression coil spring or the like, and is installed along a central axis line around the first hinge shaft 110 and the second hinge shaft 120.

Cam faces (not shown) 162 having cam diagrams consisting of an uphill section and a downhill section are formed on the surfaces of the rotary cam 150 and the linear mobile cam 160 facing each other. Since the specific structure of the cam surface 162 can be implemented in the same structure as the cam surface of the rotary cam and linear movement cam generally used for the hinge apparatus of a portable terminal, detailed description is abbreviate | omitted.

The first connection member 180 connects both sides of the first and second hinge shafts 110 and 120 at one side of the pair of rotating bodies 140, and the second connection member 190 has a pair of elasticities. It is installed to connect both sides of the first and second hinge shafts (110, 120) in close contact with the end of the member 170. The first and second connection members 180 and 190 may have a gap between the first and second hinge shafts 110 and 120 so that the gears of the pair of rotating bodies 140 rotate smoothly with each other. It acts as a restraint to prevent play.

On the other hand, the second connecting member 190 has a small length occupied by the rotating body 140, the linear movement cam 150 and the elastic member 170 in preparation for the length of the first and second hinge shafts (110, 120) It serves as a spacer to fill the empty space generated by. In addition, the second connection member 190 has a seating surface 192 formed lower than both sides at its upper end. The seating surface 192 is used as a space in which a flexible printed cable connecting the main body and the cover of the mobile terminal is installed.

Fastening ring 130 is composed of a metal ring of the "E" shape (also referred to as "E-ring"), the engaging grooves formed on both end portions of the first hinge shaft 110 and the second hinge shaft 120, respectively (112, 122) are fitted and fastened respectively. The fastening ring 130 is in close contact with one side surfaces of the first and second connection members 180 and 190, respectively, and the first and second hinge shafts may include the first and second connection members 180 and 190. In addition to preventing the departure from the 110, 120, it serves to prevent the play between the parts.

The first bracket 210 and the second bracket 220 have a "c" shape in which both ends are bent at approximately right angles. Both ends of the first and second brackets 210 and 220 are fastened to both ends of the first and second hinge shafts 110 and 120. Therefore, the first bracket 210 rotates integrally with the first hinge shaft 110, and the second bracket 220 rotates integrally with the second hinge shaft 120. Here, the first bracket 210 is assembled and installed in the main body or cover of the mobile terminal, and the second bracket 220 is assembled and installed in the cover or main body of the mobile terminal.

The hinge device 100 for a portable terminal according to this embodiment includes a case member for wrapping and protecting both pairs of fastening rings 130 positioned at both sides of the first and second hinge shafts 110 and 120, respectively. ) May be further provided. In this case, the case member has a form in which the first and second hinge shafts 110 and 120 wrap and protect the parts in a rotatable state.

In the above description of the technical details of the hinge device for a mobile terminal of the present invention together with the accompanying drawings, which describes the best embodiment of the present invention by way of example and does not limit the present invention.

In addition, it is obvious that any person skilled in the art can make various modifications and imitations within the scope of the appended claims without departing from the scope of the technical idea of the present invention.

1 is a conceptual diagram illustrating an example of a portable terminal to which a conventional hinge device is applied;

Figure 2 is an exploded perspective view showing a hinge device for a conventional portable terminal,

3 is an assembled sectional view showing the hinge device shown in FIG.

4 and 5 are an exploded perspective view and an assembled perspective view of the hinge device for a portable terminal according to an embodiment of the present invention,

6 and 7 are only perspective views showing a closed state and an open state, respectively, by showing only some components of the hinge device for a mobile terminal shown in FIG. 4;

8 and 9 are an exploded perspective view and an assembled perspective view showing a hinge device for a mobile terminal according to an embodiment of the present invention from different angles,

10 and 11 are only perspective views showing a closed state and an open state by showing only some components of the hinge device for the mobile terminal shown in FIG.

  ♠ Explanation of symbols on the main parts of the drawing ♠

100: hinge device 110: first hinge shaft

120: second hinge shaft 130: fastening ring

140: rotating body 150: rotating cam

160: linear movement cam 170: elastic member

180: first connecting member 190: second connecting member

210: first bracket 220: second bracket

Claims (6)

In the hinge device for connecting the body and the cover of the mobile terminal, The first hinge axis, A second hinge shaft spaced apart from the first hinge shaft, A pair of rotors which are respectively coupled to the first and second hinge shafts and integrally have a gear and a rotary cam rotated in engagement with each other; A linear movable cam which is connected to the first and second hinge shafts and is in contact with the rotary cam, and which is linearly movable along the first and second hinge axes; A pair of elastic members inserted and installed along the first and second hinge axes to impart elastic force to the linear cam; A first connection member which connects the first and second hinge shafts to each other at one side of the pair of rotating bodies so that the first and second hinge shafts are rotatable, respectively; A second connection member connecting the first and second hinge shafts to each other at one side of the pair of elastic members, and connecting the first and second hinge shafts to be rotatable, respectively; A first bracket having both ends coupled to both ends of the first hinge shaft and fixed to the main body, and Both ends of the hinge device for a mobile terminal, characterized in that it comprises a second bracket which is fastened to both ends of the second hinge shaft fixed to the cover. The method according to claim 1, The pair of rotors has a stopper surface for limiting the angle of rotation of the cover on a portion of the surface on which the gear is formed, each hinge device for a mobile terminal. The method according to claim 2, The second connecting member further functions as a spacer to fill the empty space generated as the length of the rotating body, the linear moving cam and the elastic member is smaller than the length of the first and second hinge axis. Hinge device for mobile terminal. The method of claim 3, The hinge of the mobile terminal further comprises a mounting surface formed on the surface of the second connection member lower than both sides thereof and used as a space for installing a flexible printed cable connecting the main body and the cover. Device. The method according to claim 4, Engaging grooves are formed at both end portions of the first and second hinge shafts, respectively, and the engaging grooves are in close contact with one side surfaces of the first and second connecting members, respectively. A hinge device for a mobile terminal, characterized in that fastening rings are provided, respectively, to prevent separation from the first and second hinge shafts and to prevent play between the parts. The method according to claim 5, And a case member for wrapping and protecting the pair of rotating bodies, the linear moving cam, the pair of elastic members, the first and second connecting members, and the coupling ring.

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