KR20070032457A - Hinge device of mobile communication terminal - Google Patents

Abstract

A hinge device of a mobile communication terminal is provided to configure a damping ring and oil for generating frictional resistance inside a hinge so that a folder or a flip of the terminal can be smoothly opened, thereby improving an opening/closing action. A hinge housing(100) consists of a cam receiver(110) and a hinge shaft insertion hole(120). A hinge shaft(200) is inserted into the insertion hole(120), and has the first fixed pin insertion unit(210) on one side. A hinge cam(300) is inserted into the cam receiver(110) as being mounted at the end of the hinge shaft(200), and is rotatable by being equipped with the second fixed pin insertion unit(340) and a frictional resistance unit(320). A sliding cam(400) interacts with the hinge cam(300), and reciprocates in the cam receiver(110). An elastic member(500) applies an elastic force in order to be compressed or elongated by reciprocating motion of the sliding cam(400). A frictional member generates frictional resistance by being installed in the frictional resistance unit(320) of the hinge cam(300).

Description

Hinge device of mobile communication terminal

1 is a perspective view showing a state in which the hinge device according to the present invention is applied to a mobile communication terminal.

Figure 2 is an exploded perspective view showing an exploded state of the hinge device according to the present invention.

3 is a cross-sectional view showing a cross section of one side of the hinge device according to the present invention.

* Description of symbols on main parts of the drawings *

10-main body 20-folder

11,21-Hinge Connection A-Hinge Device

100-Hinged housing 110-Cam housing

120-Hinge Shaft Inserts 200-Hinge Shafts

210-1st retaining pin insert 220-Stopper

300-Hinge Cam 310-Camp Profile

320-Friction resistance part 330-Hollow

340-Second retaining pin insert 350-Locking pin

400-Sliding Cam 410-Camp Profile

420-Hollow 500-Elastic member

600-Damping Ring 610-Oil for Friction Resistance

The present invention relates to a hinge, and more particularly, to a hinge device that can secure the improvement of the opening and closing by allowing the opening of the folder of the clamshell mobile communication terminal to be opened automatically and smoothly.

In general, a mobile communication terminal is a mobile communication device for a user in a location separated from each other to communicate through a base station. Recently, due to the rapid development of the electronic communication industry, mobile communication terminals have been added with various designs and additions of new functions, and the functions of the mobile communication terminals have been gradually expanded to enable the transmission of text messages and various information as well as internet access. It is also possible to transmit video calls or image information.

Accordingly, in order to secure a wider LCD screen, various types of terminals such as a folder type mobile communication terminal and a slide type mobile communication terminal have been released. The clamshell mobile communication terminal is configured to open and close a folder with respect to the main body using a hinge.

However, the conventional hinge has a problem in that the opening and closing speed of the hinge cam and the slide cam is rapidly rotated while passing through the cam portion of the cam as the hill portion and the valley portion of the hinge cam and the slide cam are operated by the spring force. Become

In addition, the hinge rotates rapidly, causing a problem of breakage and wear of the joint of the folder or the main body, causing frequent component replacement or economic loss.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and provides a hinge device that can be opened smoothly the folder or flip of the mobile communication terminal by configuring the damping ring and the oil for generating friction resistance inside the hinge. For the purpose of

The present invention for achieving this object is in the hinge of the mobile communication terminal is accommodated on one side of the main body of the mobile communication terminal to elastically open and close the folder or flip, the cam receiving portion and the hinge shaft insertion hole on one side The hinge housing provided, the hinge shaft is inserted into the hinge shaft insertion hole and has a first fixing pin insertion portion at one side, the cam receiving portion is inserted into the hinge shaft end and is equipped with a second fixing pin insertion portion and a frictional resistance portion. Rotatable hinge cam, a sliding cam installed to reciprocate in the cam receiving portion to interact with the hinge cam, an elastic member for applying elasticity to compress or extend by the reciprocating motion of the sliding cam, and the friction of the hinge cam It is characterized in that it is configured to include a friction member which is installed in the resistance unit to generate a frictional resistance.

And a fixing pin configured to penetrate through the first fixing pin insertion unit and the second fixing pin insertion unit to simultaneously rotate the hinge cam and the hinge shaft.

The friction member is a plurality of damping rings, the oil for friction resistance is interposed between the inner surface of the hinge housing that the outer peripheral surface of the damping ring is in contact.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

1 is a perspective view showing a state in which the hinge device according to the present invention is applied to a mobile communication terminal, Figure 2 is an exploded perspective view showing an exploded state of the hinge device according to the present invention, Figure 3 is a hinge device according to the present invention It is sectional drawing which shows the cross section of one side.

As shown in Figures 1 to 3, the hinge device (A) according to the present invention is a hinge housing 100, hinge shaft 200, hinge cam 300, sliding cam 400, elastic member 500, It is divided into friction members.

The hinge housing 100 has a cam receiving portion 110 open to one side in a cylindrical shape, and has a hinge shaft insertion hole 120 opposite the cam receiving portion 110. In addition, the outer circumferential surface of the hinge housing 100 is preferably accommodated in the hinge connection portion 11 of the main body 10 of the mobile communication terminal and at the same time take the form of flying the circumferential surface of both sides to prevent rotation.

The hinge shaft 200 is formed to insert and rotate in the hinge shaft insertion hole 120, the first fixing pin insertion portion 210 is formed at one end, the hinge in the opposite direction of the first fixing pin insertion portion 210 The shaft 200 is configured to include a stopper 220 so as not to be completely inserted into the hinge shaft insertion hole 120.

The hinge cam 300 is formed to rotate the inside of the cam receiving portion 110 of the hinge housing 100, and the camp profile having two top portions and valley portions in a continuous cam curve form. 310 is integrally provided, and a frictional resistance part 320 is provided at the bottom of the camp profile 310. In addition, the hinge cam 300 has a hollow structure as a whole, so that the hinge shaft 200 is positioned inside the hollow 330 of the hinge cam itself, and the second fixing pin insertion portion 340 of the hinge cam 300 is located. And the fixing pin 350 is inserted into the first fixing pin insertion portion 210 of the hinge shaft 200 to perform the same rotation. In addition, the adjacent outer circumferential surface of the second fixing pin insertion portion 340 of the hinge cam 300 is accommodated in the hinge connection portion 21 of the folder 20 of the mobile communication terminal, and at the same time the shape of the circumferential surface of both sides to blow to prevent rotation It is preferable to take.

The sliding cam 400 is formed to reciprocate back and forth within the cam receiving portion 110 of the hinge housing 100, and two vertex portions corresponding to the camp profile 310 of the hinge cam 300 ( and a camp profile 410 having a top portion and a valley portion in a continuous cam curve form. In addition, since the sliding cam 400 has a hollow structure as a whole, the hinge shaft 200 may be positioned inside the hollow 420 of the sliding cam 400 itself.

Here, the camp profile 310 of the hinge cam 300 and the camp profile 410 of the sliding cam 400 are changed according to the opening and closing angle and the intended use, and the camp profiles 310 and 410 are already many conventionally known. Since it is used, a detailed description of the internal structure and operation thereof will be omitted.

The elastic member 500 is located between the sliding cam 400 and the stopper 220 of the hinge shaft 200 and is compressed or extended by the reciprocating motion of the sliding cam 400 interlocked with the hinge cam 300. Apply elasticity. In addition, the coil spring may be used as the elastic member 500.

The friction member has a plurality of ring shapes mounted on the friction resistance portion 320 of the hinge cam 300, and causes friction with the inner side of the cam receiving portion 110 of the hinge housing 100. In one embodiment the friction member is composed of a plurality of damping ring (600). In addition, a frictional resistance generating oil 610 is interposed between the inner surfaces of the cam housing portion 110 of the hinge housing 100 that the outer circumferential surfaces of the damping rings 600 contact.

That is, the hinge shaft 200 is inserted through the hinge shaft insertion hole 120 of the hinge housing 100, and the elastic member 500 is connected to the hinge shaft 200 through the cam receiving portion 110 of the hinge housing 100. ) And the hinge shaft 200 is positioned inwardly through the hollow 420 of the sliding cam 400 to the upper side of the elastic member 500. In addition, the hinge cam 300 having a plurality of damping rings 600 is mounted to the upper side of the sliding cam 400, and the second fixing pin inserting portion 340 and the first fixing pin at the end of the hinge shaft 200 are inserted. It is fixed to the portion 210 using the fixing pin 350. In addition, an oil 610 for generating frictional resistance is added between the damping ring 600 and the inner side of the cam receiving portion 110.

Therefore, the rotation of the hinge cam 200 is friction with the inner side of the cam receiving portion 110 by the damping ring 600 and the oil for generating friction resistance 610, the rotational speed is lowered and can be opened and closed slowly. . That is, as illustrated in FIG. 1, the folder type mobile communication terminal to which the hinge device A is applied has a smooth operation feeling when the folder 20 is opened and closed, and the hinge connector 11 of the main body 10 or the folder 20 is opened. 21) Do not overdo it.

In addition, the hinge device A may adjust the rotation speed according to the number and material of the damping rings 600 and the viscosity of the oil 610 for generating frictional resistance.

On the other hand, the above description has been described taking the state applied to the folding mobile communication terminal as an example, the present invention can be applied to other types of portable electronic devices using a hinge, such as PDA, electronic notebook.

As mentioned above, although this invention was demonstrated in detail using the preferable embodiment, the scope of the present invention is not limited to a specific embodiment and should be interpreted by the attached claim. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

As described above, the hinge device of the mobile communication terminal according to the present invention allows the opening of a folder or flip in the mobile communication terminal to be automatically and smoothly opened, thereby preventing damage and damage to the hinge portion due to excessive opening, while being easy to use. Provides the effect to secure.

In addition, it is a structure that can adjust the rotational speed, the sense of luxury of the hinge, in particular implemented in the inside of the hinge, provides the effect to enable cam operation, rotational speed, sense control in the integrated module.

Claims (4)

In the hinge of the mobile communication terminal accommodated on one side of the main body of the mobile communication terminal to elastically open and close the folder or flip, A hinge housing having a cam receiving portion and a hinge shaft insertion hole at one side thereof; A hinge shaft inserted into the hinge shaft insertion hole and having a first fixing pin insertion portion at one side thereof; A hinge cam inserted into the cam receiving portion and mounted at an end of a hinge shaft and having a second fixing pin insert portion and a frictional resistance portion; A sliding cam installed to reciprocate the cam receiving portion by interacting with the hinge cam; An elastic member for applying an elastic force to be compressed or extended by the reciprocating motion of the sliding cam; A friction member installed in the frictional resistance portion of the hinge cam and causing frictional resistance; The hinge device of a mobile communication terminal, characterized in that configured to include. The method of claim 1, And a fixing pin configured to penetrate through the first fixing pin insertion unit and the second fixing pin insertion unit so that the hinge cam and the hinge shaft rotate at the same time. The method of claim 2, The friction member is a hinge device of a mobile communication terminal, characterized in that a plurality of damping ring. The method of claim 3, The hinge device of the mobile communication terminal, characterized in that the oil for friction resistance is interposed between the inner side of the hinge housing that the outer peripheral surface of the damping ring is in contact.

Images