KR20020081654A - A flip type of cellular phone for hinge structure - Google Patents

Abstract

PURPOSE: A hinge structure for a mobile communication terminal is provided to stably open and close a flip cover as to a body and prevent that an impurity is permeated in a combination portion of the body and the flip cover by rotatably fixing the flip cover with a stable fixing force to the body and rotating both sides of a rotation body of a hinge structure according to a spring elastic supporting force. CONSTITUTION: Both sides of a hinge axis(220) are rotatably fixed to a fixed body(150) formed at both sides of an end of a body(100), and the hinge axis(220) is formed at an end of a flip cover(200). A rotation body(230) with a slope surface(250) is covered on the both sides of the hinge axis(220) by one body and is fixed to the both sides of the hinge axis(220). A compression spring(320) is inserted into the fixed body(150) in an axis direction in a state in which the hinge axis(220) is covered. A movement body(300) has a slope surface(310) at its one side to be contacted with the slope surface(250) of the rotation body(230), and the movement body(300) is slidingly moved by the slope surface(250) of the rotation body(230) when the rotation body(230) of the flip cover(200) is rotated for compressing the compression spring(320).

Description

Hinge structure for mobile terminal {A FLIP TYPE OF CELLULAR PHONE FOR HINGE STRUCTURE}

The present invention relates to a hinge structure for a mobile communication terminal, and more particularly, to a hinge structure for a terminal to improve the hinge structure of the flip type terminal to be easily rotated from the main body.

In general, a mobile communication terminal refers to a mobile terminal such as a mobile phone, a car phone, a wireless telephone, and the like, and the terminal performs a wireless communication function with a base station, and such a terminal is already widely used for its convenience. In addition, in order to meet the needs of subscribers are being further miniaturized, and the functionality is also increasing.

Currently, portable mobile communication terminals have been released with various shapes (eg, bar type, flip type) and functions according to the rapid development of electronic components. There is a trend.

Such a flip type terminal has a flip cover which is rotatable on the main body to protect a plurality of buttons to prevent malfunction of the buttons and to serve as a negative reflector during a call, and the flip cover has an elastic force at an end of the main body to rotate. It becomes the structure that becomes.

That is, a predetermined length protrudes on both sides of the coupling end of the flip cover and the rotating shaft is formed with an oval cam at the end, and the "c" type spring is provided on both sides of the coupling end of the main body and inserted and fixed in opposite directions. The cam of the rotating shaft is fitted into the groove of the spring.

Therefore, when the terminal user rotates the flip cover, the cam is rotated, and the large diameter side of the cam imparts a force to the upper and lower ends of the spring, and when the flip cover is initially applied with a predetermined external force, the cam is restored by the restoring force of the spring. Will rotate to the initial state.

However, the plate-shaped "c" shaped spring as described above is a problem that the bending end is broken or plastic deformation when repeated use for a long time to lose the holding force.

Therefore, the present invention was devised to solve the above problems, and an object of the present invention is to ensure that the flip cover is securely rotatably fixed to the main body constituting the mobile communication terminal and is also rotatable at both ends of the hinge structure for rotation. The spring contact force is rotated in the surface contact state, so that the flip cover is stably opened and closed with respect to the main body and foreign matter does not penetrate into the engaging portion of the main body and the flip cover.

1 is a perspective view of main parts of a hinge structure for a mobile communication terminal according to the present invention;

2 is a cross-sectional view of the coupling state of FIG.

3 is a cross-sectional view taken along the line "C-C" in FIG.

<Description of the symbols for the main parts of the drawings>

100: main body 150: fixed body

160: guide groove 200: flip cover

220: hinge axis 230: rotating body

300: moving body 320: compression spring

In order to achieve the above object, the present invention provides a hinge structure for a mobile communication terminal comprising a main body, a flip cover, and a hinge means for allowing the flip cover to be rotatable with respect to the main body, both ends of both ends of the main body. A hinge shaft fixed to the fixed body formed on the rotatable body, the hinge shaft being formed at the end of the flip cover on the outer peripheral surface of the middle part, and the rotating body having an inclined surface at both ends being integrally wrapped and fixed; Compression springs axially inserted into the fixing body in a state in which the hinge shaft is wrapped; And a movable body having an inclined surface on one side so as to contact the inclined surface of the rotating body and being slid by the inclined surface of the rotating body when the rotating body of the flip cover rotates to compress the compression spring.

Hereinafter, a hinge structure for a mobile communication terminal according to the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of a hinge structure according to the present invention in a known mobile communication terminal, Figure 2 shows a cross-sectional view of the coupling state of Figure 1, Figure 3 shows the operating state of the hinge structure.

The present invention, the main body 100, the flip cover 200, the hinge shaft 220 connecting them so that the flip cover 200 can be restored to the initial state after the rotation with respect to the main body 100, It is formed in the main body 100 and the fixed body 150 for rotatably fixing the hinge shaft 220, the compression spring 320 is inserted into the fixed body 150, and the slide in the fixed body 150 It comprises a moving body 300 to be moved, and a rotating body 230 provided at the end of the flip cover 200 to push the moving body 300 during rotation.

The main body 100 or the flip cover 200 is provided with a variety of communication devices on the inside in a conventional structure, and various communication means such as an LCD display function button and a number button microphone speaker on the outside.

The main body 100, the fixed body 150 is formed on both sides at one end, the fixed body 150 is formed to open the guide groove 160 on the opposite surface to each other, the guide groove 160 A hinge shaft fixing jaw 120, a moving body locking jaw 130 and a rotating body departure stop 140 are formed on the inner circumferential surface.

The flip cover 200 is rotated by being coupled between the fixed body 150 of the main body 100 is provided with a rotating body 230 at one coupling end, the rotating body 230 is a hinge shaft 220 Hinge shaft coupling groove 232 is formed so as to be fixed to the middle portion of the), both ends are formed inclined surface 250 symmetric with each other.

The hinge shaft 220 is an extension end 222 is formed so that both ends are rotatably fixed to the hinge shaft fixing jaw 120 in the fixing body 150, the compression spring 320 and the movable body 300 on the outer peripheral surface ) Is movably coupled, and the rotor 230 is integrally wrapped and fixed to the middle portion.

The compression springs 320 are respectively inserted into the fixed body 150 in a state of enclosing the hinge shaft 220, and are compressed and restored by being supported in the fixed body 150 according to the moving force of the movable body 300. .

The movable body 300, a hinge shaft guide hole 302 is formed in the middle so as to be linearly moved along the hinge shaft 220, one end is supported by the compression spring 320, the other end is the rotating body ( The inclined surface 310 is in contact with the inclined surface 250 of the 230.

That is, the movable body 300 is slid in one direction by the inclined surface 250 of the rotating body 230 when the rotating body 230 of the flip cover 200 is rotated to compress the compression spring 320.

In addition, the inclined surfaces 250 and 310 may have rounded inclination angles at the edges thereof to secure the flexibility of sliding contact, and the inclination angles of the inclined surfaces 250 and 310 may have inclination angles within a range of 15 degrees to 85 degrees. .

The operating state of the hinge structure for a mobile communication terminal configured as described above will be described.

In use, when the flip cover 200 is rotated in one direction as shown in FIG. 3, as shown in FIG. 2, the rotating body 230 formed at the coupling end of the flip cover 200 is coupled with the hinge shaft 220. At the same time, the inclined surface 250 of the rotating shaft 230 is rotated at a fixed position along the inclined surface 310 of the movable body 300 in contact with each other, so that the inclined surface 250 pushes the movable body 300. In this case, the movable body 300 compresses the compression spring 320 and rotates while the inclined surface of the rotor 230 is compressed to a 180 degree position.

After use, when a predetermined external force is applied to the flip cover 200, the rotary shaft 230 of the flip cover 200 rotates in the reverse direction, and at the same time, the compression spring 320 generates a restoring force and the movable body 300 is in an initial state. It is pushed in, successively the inclined surface 310 of the moving body 300 slides along the inclined surface of the rotating body 230 to return the flip cover 200 to the initial state.

Therefore, the hinge structure for a mobile communication terminal according to the present invention allows the flip cover to be fixed to the main body constituting the mobile communication terminal with a stable fixing force so as to be rotatable, and both ends of the rotating body of the hinge structure for rotation are spring-loaded. By being rotated by the intellect, the flip cover can be stably opened and closed with respect to the main body, and there is an effect of preventing foreign matter from penetrating into the engaging portion of the main body and the flip cover.

Claims (3)

In the hinge structure for a mobile communication terminal comprising a main body, a flip cover, and a hinge means for rotating the flip cover with respect to the main body, Both ends are fixed to the fixing body 150 is formed on both ends of the body 100, rotatable body 230 is formed at the end of the flip cover 200 on the outer peripheral surface of the intermediate portion and has an inclined surface 250 at both ends Hinge shaft 220 is wrapped integrally and fixed; Compression springs 320 are respectively axially inserted into the fixing body 150 in a state of wrapping the hinge shaft 220; It has an inclined surface 310 on one side so as to contact the inclined surface 250 of the rotating body 230, when the rotating body 230 of the flip cover 200 is rotated by the inclined surface 250 of the rotating body 230 A hinge structure for a mobile communication terminal, comprising: a mobile body 300 which is slid to compress the compression spring 320. The method of claim 1, Angle of the inclined surface (250, 310) of the rotating body 230 and the moving body 300 corresponding to the hinge structure for a mobile communication terminal, characterized in that to have an inclination angle within the range of 15 degrees to 85 degrees. The method according to claim 1 or 2, A hinge structure for a mobile communication terminal, wherein the edges of the inclined surfaces 250 and 310 have a rounding inclination angle.