KR20070010588A - Hinge apparatus of a mobile communication terminal or device - Google Patents

Abstract

A hinge device of a mobile terminal is provided to prevent a failure of a mobile terminal from being generated by absorbing an impact generated when a sub-unit of the mobile terminal is closed, and to reduce an A/S frequency rate. A buffer unit(35) is formed within a hinge housing(34) and absorbs an impact generated when a sub-unit contacts with a main unit according to its rotational movement. A support(36) is formed in contact with the buffer unit(35) and reduces the rotation of the sub-unit. A hinge shaft(31) is installed at one of the main unit and the sub-unit and connected with the other remaining one so as to make a rotational movement. A hinge cam(32) is positioned to face the hinge shaft(31) and slidably moved according to the rotational movement of the hinge shaft(31). A hinge spring(33) is installed at the hinge cam(32) and provides a returning force to the hinge cam(32).

Description

Hinge apparatus of a mobile communication terminal or device

1 is a perspective view showing a state in which the sub-unit of the mobile communication terminal is tangled according to the present invention.

2 is a perspective view showing a state in which the subunit of the mobile communication terminal according to the present invention opened.

3 is an exploded perspective view of a hinge device of a mobile communication terminal according to the present invention;

4 is a cross-sectional view of a hinge device of a mobile communication terminal according to the present invention.

5 is a cross-sectional view showing the hinge device of the mobile communication terminal is installed on the left and right sides of the mobile communication terminal according to the present invention.

Figure 6a is a perspective view of when the subunit of the mobile communication terminal completely flipped in accordance with the present invention.

Figure 6b is a perspective view when the subunit of the mobile communication terminal according to the present invention is tilted 90 °.

Figure 6c is a perspective view when the subunit of the mobile communication terminal according to the present invention is tilted 15 °.

Figure 6d is a perspective view showing a state when the subunit of the mobile communication terminal completely closed in accordance with the present invention.

<Explanation of symbols on main parts of the drawings>

10: main unit 11: antenna unit

12: keypad 13: microphone unit

20: Subunit 21: Earpiece

22: LC Div 23: Center Hinge Arm

30: hinge device 31: hinge shaft

31a: shaft 32: hinge cam

32a: ridge 32b: bone

32c: hinge spring fixing part 33: hinge spring

34: hinge housing 35: buffer unit

35a: spring holder 35a ′: fixing part

35a ″: sponge part 35b: spring

36: support

The present invention relates to a mobile communication terminal, and more particularly, to a hinge unit of a mobile communication terminal connecting the sub unit and the main unit and the sub unit and the main unit.

In general, a mobile communication terminal is a portable terminal for performing a voice call with a user of another mobile communication terminal through a mobile communication network, and includes a cellular phone, a hand held phone (HHP), a CT-2, and a PCS ( personal communication service) A mobile device such as a phone.

Currently, such a portable terminal coexists with a method of opening and closing a subunit and a main unit by hinge-combining the subunit and a main unit according to a method of opening and closing the subunit, and sliding the subunit in the main unit.

In general, a mobile communication terminal having a hinged combination of a subunit and a main unit, which opens and closes up and down, includes a subunit, a main unit, and a hinge device connecting the subunit and the main unit.

Such a mobile communication terminal generates an impact when the subunit is opened and closed, causing a failure in the liquid crystal, the main board and various devices of the mobile communication terminal.

In order to alleviate the impact applied to the mobile communication terminal, a mobile communication terminal having an open and close button on the main unit and automatically opening and closing the subunit without pressing the button directly by the user when the button is pressed is shown in the related art. However, such a mobile communication terminal feels frustrating because the opening and closing speed of the subunit is too slow for the users to use, so when opening and closing actually open manually.

The present invention has been made to solve the above-mentioned problems of the prior art, and a hinge device of a mobile communication terminal which absorbs the shock generated when the subunit of the mobile communication terminal is closed to protect the mobile phone liquid crystal, the main board and various devices. The purpose is to provide.

The hinge device of the mobile communication terminal according to the present invention for solving the above problems is a shock absorbing unit having one end connected to the inner surface of the hinge housing to absorb the shock generated when the sub unit is closed to the main unit by the rotational movement; It is located inside the hinge housing, it characterized in that it comprises a support for absorbing the impact by slowing the closing speed of the sub-unit in contact with the buffer unit.

In addition, the hinge housing is installed in one of the main unit and the sub-unit and connected to the other hinge hinge shaft, the hinge shaft is positioned facing the hinge shaft, the sliding movement by the rotation of the hinge shaft The hinge cam is installed in the hinge cam, and the hinge spring is provided to provide a return force to the hinge cam.

In addition, the hinge housing has a through hole formed at one end thereof so that one side of the hinge shaft penetrates to be coupled to one of the main unit and the sub unit, and the other end is blocked so that the hinge spring can be supported. It is done.

In addition, the hinge housing is characterized in that it is arranged to face left and right in the mobile communication terminal.

In addition, the shock absorbing unit is a spring holder for contacting the support first when the sub unit is struck by the main unit to absorb the shock, and a spring fixed to the spring brace to absorb the shock generated when the sub unit is struck Characterized in that configured.

The spring holder may include a fixing part fixed to the inner side of the hinge housing, and a sponge part connected to one side of the fixing part and absorbing the shock generated when the sub unit is squeezed.

In addition, the support is characterized in that formed on the hinge cam.

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

1 is a perspective view showing a state in which the sub-unit of the mobile communication terminal is tangled according to the present invention, Figure 2 is a perspective view showing a state in which the sub-unit of the mobile communication terminal according to the present invention is opened.

As shown in FIG. 1 and FIG. 2, the mobile communication terminal includes a main unit 10, a subunit 20, and a hinge device 30 connecting the main unit 10 and the subunit 20. It is composed.

An antenna device 11 is installed at the top of the main unit 10, and a keypad 12 including a plurality of function keys or numeric keys is arranged below the antenna device 11, and the keypad 12 is arranged. The microphone device 13 is installed downward.

In addition, the main unit 10 has side arms 14 and 15 formed between the antenna device 11 and the keypad 12.

The subunit 20 has an earpiece 21 including a speaker at the top thereof, and the LCD unit 22 is positioned below the frying earpiece 21.

In addition, a center hinge arm 23 is formed at a lower end of the sub unit 20, and the hinge device 30 is mounted on the center hinge arm 23.

3 is an exploded perspective view of a hinge device of a mobile communication terminal according to the present invention, Figure 4 is a cross-sectional view of the hinge device of the mobile communication terminal according to the present invention, Figure 5 is a hinge device of the mobile communication terminal according to the present invention is moved It is sectional drawing which shows the state installed in the left and right of a communication terminal.

As shown in FIGS. 3 to 5, the hinge device 30 is positioned to face the hinge shaft 31 and the hinge shaft 31 which are combined with the sub unit 20 to rotate. A hinge cam 32 for sliding movement by the rotational movement of the hinge shaft 31, a hinge spring 33 installed at the hinge cam 32, and providing a return force to the hinge cam 32; The hinge unit 31, the hinge cam 32, and the hinge spring 34 in which the hinge springs 33 are accommodated, and the sub unit 20 is rotated by the rotation of the sub unit 20. A shock absorbing unit 35 having one end connected to the inner side of the hinge housing 34 and the inside of the hinge housing 34 so that the shock generated when the main unit 10 is closed may be absorbed. The support 36 for absorbing shock by contacting the 35 and slowing the closing speed of the subunit 20 is provided. It is configured to hereinafter.

One side of the hinge shaft 31 extends a shaft 31a having a cylindrical shape in the rotational axis direction, and the other side is provided with a ridge 31b in the horizontal direction.

A pair of planes and a pair of curved surfaces face each other at the end of the shaft 31a, and the direction in which the pair of curved surfaces face each other and the direction in which the mountain portion 31b extends are perpendicular to each other.

On the other hand, the engaging grooves 14a and 15a are formed in the side arms 14 and 15 formed in the main unit 10 so that the shaft 31a formed in the hinge shaft 31 can be caught.

The hinge cam 32 has a pair of ridges 32a formed in the hinge shaft 31 direction, a valley 32b formed between the ridges 32a, and an inner side of the hinge housing 34. It is composed of a hinge spring fixing portion 32c formed along.

On the other hand, the support 36 has a plate shape, and is installed in the hinge cam 32.

The hinge spring 33 is mounted to the hinge spring fixing part 32c and installed inside the hinge housing 34.

The hinge housing 34 has a through hole 34a formed at one end thereof, and a cylindrical shaft 31a formed at the hinge shaft 31 penetrates and is coupled to the sub unit 20, and the other end of the hinge spring go. It is closed to support the front part 32c and the hinge spring 33, and the upper part is completely opened so that the hinge housing cover 34 'is mounted.

A locking hole 34b is formed at both upper ends of the hinge housing 34 so that the hinge housing cover 34 'may be mounted, and the hinge housing cover 34' is provided at the locking hole 34b. A locking projection 34'a is formed to be caught and fixed.

On the other hand, the hinge housing 34 is disposed to face left and right with the center hinge arm 23 formed in the main unit 10.

The shock absorbing unit 35 is first contacted with the support 36 when the sub unit 20 is struck, and a cylindrical spring holder 35a for absorbing shock and the spring unit 35a is fixed to the subunit. It consists of a spring (35b) for absorbing the shock generated when the 20 is squeezed, the spring holder (35a) is fixed to the inside of the hinge housing 34 (35a ') and the fixing portion ( 35a ') is composed of a sponge portion 35a' that is connected to one side and absorbs the shock generated when the subunit is squeezed.

Looking at the operation of the present invention configured as described above are as follows.

6A is a perspective view when the subunit of the mobile communication terminal according to the present invention is completely flipped, FIG. 6B is a perspective view when the subunit of the mobile communication terminal according to the present invention is tilted at 90 degrees, and FIG. 6C is a present invention. Fig. 6D is a perspective view of the subunit of the mobile communication terminal according to the present invention when FIG. 6D is completely closed.

When the subunit 20 of the mobile communication terminal is completely retracted from the main unit 10, the support 36 is not in contact with the shock absorbing unit 35, and the shock absorbing unit 35 is the sponge part 35a. I) and the maximum height is maintained due to the elastic force of the spring 35b.

When the subunit 20 starts to close, the hinge shaft 31 starts to rotate to move the hinge cam 32 in a horizontal direction so that the hinge spring fixing part 32c and the hinge spring 33 are the same. It is in close contact with the right wall of the hinge housing 34.

When the sub unit 20 is tilted by 90 °, the support 36 formed on the hinge cam 32 rotates like the hinge cam 32 to approach the shock absorbing unit 35.

When the subunit 20 is inclined 15 °, the support 36 is in contact with the buffer unit 35.

When the sub unit 20 is inclined to 15 ° or less and completely closes to the main unit 10, the support 36 is a sponge part 35a ˝ and the spring constituting the shock absorbing unit 35. The shock generated when the subunit 20 is closed while being in close contact with 35 b is sequentially absorbed by the elastic force of the sponge part 35a 'and the spring 35b.

As described above, the hinge device of the mobile communication terminal according to the present invention has been described with reference to the illustrated drawings. However, the present invention is not limited to the above-described embodiments and drawings, and various modifications are made by those skilled in the art within the scope of the technical idea of the present invention. Of course, variations are possible.

That is, the hinge housing may be formed in the main unit as well as formed in the subunit.

In the hinge device of a mobile communication terminal according to the present invention configured as described above, a hinge housing for accommodating a hinge shaft, a hinge cam, and a hinge spring is formed in one of a main unit and a sub unit, and the inside of the hinge housing A shock absorbing unit and a support for absorbing shock by slowing the closing speed of the subunit by being in contact with the buffer unit so that the shock generated when the subunit is closed to the main unit by the rotational movement of the subunit can be absorbed. Is provided, it is possible to absorb the shock generated when the subunit of the mobile communication terminal is closed to prevent the occurrence of a failure in the mobile communication terminal, there is an advantage that can reduce the A / S frequency rate.

In addition, the hinge housing has a through hole formed at one end thereof so that one side of the hinge shaft penetrates and is coupled to the sub unit, and the other end is blocked to support the hinge spring, and the hinge housing is connected to the mobile communication. Since the hinge housings are arranged to face each other, there is an advantage in that the hinge housing is structurally balanced in the force distribution than when the hinge housing is installed only on one side of the mobile communication terminal, thereby stably opening and closing the subunit.

Claims (7)

A buffer unit formed inside the hinge housing and absorbing a shock generated when the sub unit comes into contact with the main unit by a rotational movement; The hinge device of the mobile terminal, characterized in that the hinge housing is formed in contact with the buffer unit is configured to reduce the rotation of the sub-unit. The method of claim 1, The hinge housing may include a hinge shaft installed at one of the main unit and the sub unit and connected to the other one to rotate; A hinge cam positioned to face the hinge shaft and configured to slide by a rotational movement of the hinge shaft; The hinge device of the mobile communication terminal is installed in the hinge cam, characterized in that for receiving a hinge spring for providing a return force to the hinge cam. The method of claim 2, The hinge housing has a through hole formed at one end thereof so that one side of the hinge shaft penetrates to be coupled to one of the main unit and the sub unit, and the other end is blocked so that the hinge spring can be supported. The hinge device of the mobile communication terminal. The method of claim 2 or 3, And the hinge housing is disposed to face the mobile communication terminal from side to side. The method of claim 1, The shock absorbing unit includes a spring holder for first contacting the support when the sub unit is struck by the main unit to absorb shocks; The hinge device of the mobile terminal, characterized in that the spring is fixed to the spring fixed to absorb the shock generated when the sub-unit is struck. The method of claim 6, The spring holder is fixed to the inner side of the hinge housing; One side of the fixing portion is connected to the hinge unit of the mobile communication terminal, characterized in that consisting of a sponge to absorb the shock generated when the sub-unit is struck. The method of claim 1, The support is a hinge device of a mobile communication terminal, characterized in that formed on the hinge cam.

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