KR100895171B1 - Hinge device for portable wireless terminal - Google Patents

Abstract

The hinge device of the portable wireless terminal according to the present invention protrudes to one end of the center hinge arm of the folder, and is coupled to the side hinge arm through the inner side surface of the main body side hinge arm on one side, and a predetermined movement trajectory according to the rotation of the folder. Hinge stopper to form a; A hinge dummy fixed to the side hinge arm and coupled to the hinge module and having guide grooves formed along a movement trajectory of the hinge stopper; First and second sidewalls that limit the range of movement of the hinge stopper at both ends of the guide groove, and a stepped surface having a predetermined height protrudes at one end of the guide groove so that a third portion is formed between the first sidewall and the second sidewall. Sidewalls are provided. The hinge device is configured such that the stopper is first stopped by the third side wall while the stopper moves along the guide groove, and further rotates to be secondarily stopped by the second side wall. Since the opening operation of the folder is stopped at a position within 180 degrees while expanding, it is convenient to use, and even if the hinge device is slightly damaged, the folder can be kept in a stable stop state by the stopper and the hinge pile.

Folder, hinge device, stopper, hinge pile

Description

HINGE DEVICE FOR PORTABLE WIRELESS TERMINAL}             

1 is a perspective view showing a conventional portable wireless terminal,

2 is an exploded perspective view illustrating a main body and a folder of a portable wireless terminal having a hinge device according to an embodiment of the present invention separated from each other;

3 is a perspective view showing a side hinge arm of the portable wireless terminal body shown in FIG.

4 is an exploded perspective view illustrating a hinge module of the portable wireless terminal illustrated in FIG. 2;

5 is an exploded perspective view showing the configuration of the hinge device of the portable wireless terminal shown in FIG.

6 is an exploded perspective view showing another configuration of the hinge device of the portable wireless terminal shown in FIG.

Description of the main parts of the drawing

400: hinge module 450: hinge stopper

460a and 460b: hinge pile 463: first side wall                 

465: second sidewall 467: third sidewall

469a: step surface 469b: stopper groove

The present invention relates to a portable wireless terminal, and more particularly to a hinge device of a portable wireless terminal.

Typically, portable wireless terminals are classified into bar type, flip type, and folder type terminals according to their appearance.

The bar terminal is a type in which a data input / output means and a handset module are mounted in a main body housing, and a keypad, which is a data input means, is always exposed, which may cause a malfunction. There is a limit to miniaturization due to securing problems.

The flip terminal comprises a main body, a flip, and a hinge device for connecting the main body and the flip, wherein the main body is equipped with a data input / output means and a handset module, and the flip is the data input means. However, the malfunction of the flip-type terminal is limited due to the problem of securing the distance between the transmitter and the receiver.

The folder-type terminal includes a main body, a folder, and a hinge device for rotatably connecting the main body and the folder so that the folder is opened and closed by rotating the folder. A malfunction of the keypad can be prevented, and in the call mode, the folder can be opened to secure a sufficient distance between the talker and the talker, which is advantageous in miniaturization.

1 is a perspective view showing a conventional portable wireless terminal, a perspective view showing a foldable terminal 100.

As shown in FIG. 1, the conventional foldable terminal 100 is coupled to the main body 110 and the folder 150 so as to be opened and closed by rotating by a hinge device (not shown).

The main body 110 is provided with a keypad 113 and a talker 115 on the housing 111, and side hinge arms 117 are respectively installed on both sides of the upper end.

In the folder 150, the display device 153 is exposed on the housing 151, and a receiver 155 is installed at an upper end thereof. In addition, a center hinge arm 157 interposed between the side hinge arms 117 of the body housing 111 at a lower end of the folder housing 151 to rotatably couple the folder 150 to the body 110. ) Is installed. The center hinge arm 157 is provided with a predetermined hinge device.

Such conventional hinge devices are disclosed in US Pat. No. 6,292,980 (September 25, 2001) and the like, which are issued to the applicant. The disclosed hinge device uses a hinge cam and a hinge shaft, each of which has a hill portion and a valley portion, and a spring which comes into close contact with the hinge cam and the hinge shaft in a hinge housing, thereby utilizing the curved surface of the hill portion and the valley portion and the elastic force of the spring. The principle is to open and close a folder or flip.                         

Meanwhile, as the mobile communication service is diversified, various additional devices such as a camera lens module are installed in the portable wireless terminal, and various types of terminals such as a two-axis rotation method capable of inverting the front and rear with the folder open are released. It is becoming.

However, since the opening angle of the conventional hinge device is limited to 150 degrees in the state where the main body and the folder are open, it is difficult to achieve a proper harmony with the display device in operating the camera lens module. That is, when the camera lens module shoots toward the rear side of the terminal, it is convenient for the user to open the folder by 180 degrees to match the shooting direction of the camera lens module with the display direction of the shooting screen. The opening angle of the folder is limited to around 150. In addition, the hinge cam and the hinge shaft in the conventional hinge device is made of synthetic resin in consideration of the smooth operation, there is a problem that the hinge cam and the hinge shaft is worn and the correct opening angle is not maintained when the terminal is used for a long time.

In order to solve the above problems, it is an object of the present invention to provide a hinge device of a portable wireless terminal that can properly match the direction of the camera lens module with the direction of the photographed image displayed on the display device.

Another object of the present invention is to extend the opening angle of the folder to 180 degrees of the portable wireless terminal that can provide convenience to the user by appropriately matching the direction of the shooting image displayed on the display device with the shooting direction of the camera lens module In providing a hinge device.

It is still another object of the present invention to provide a hinge device of a portable wireless terminal that can accurately maintain the opening angle of a folder even when used for a long time.

In order to achieve the above object, the present invention is a body having a side hinge arm is formed on each side of both ends of the end, a folder formed with a center hinge arm coupled between the side hinge arm, and the center hinge arm is accommodated in the In a portable wireless terminal having a hinge module for rotatably coupling the main body and a folder,

It is accommodated to be movable in the longitudinal direction on one side of the hinge module, protrudes to one end of the center hinge arm, is coupled to the side hinge arm through the inner side of the side hinge arm, the predetermined according to the rotation of the folder A hinge stopper forming a moving trajectory of the hinge stopper; And

A hinge pile fixed to the side hinge arm of one side and coupled to the hinge module, and having a guide groove formed along a movement trajectory of the hinge stopper;

First and second sidewalls that limit the range of movement of the hinge stopper at both ends of the guide groove, and a stepped surface having a predetermined height protrudes at one end of the guide groove so that a third portion is formed between the first sidewall and the second sidewall. A side wall is provided, and the step surface discloses a hinge device of a portable wireless terminal extending from a selected one of the first or second side wall.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, if it is determined that the detailed description of the related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

2 is an exploded perspective view illustrating a main body 210 and a folder 250 of a portable wireless terminal 200 having a hinge device according to an exemplary embodiment of the present invention, and FIG. 3 is shown in FIG. It is a perspective view which shows the side hinge arm 217 of the portable radio terminal main body 210. As shown in FIG. 2 and 3, the hinge device according to the preferred embodiment of the present invention includes a hinge module 400 accommodated in the center hinge arm 257 of the folder 450 and a side hinge of the main body 210. Hinge piles 460a and 460b received in the arm 217 and coupled to the hinge module 400 are provided.

4 is an exploded perspective view illustrating the hinge module 400 of the portable wireless terminal 200 illustrated in FIG. 2. As shown in FIG. 4, the hinge module 400 includes a hinge shaft 420, a hinge cam 430, an elastic means 440, and a hinge stopper 450 in the hinge housing 410.

The hinge housing 410 has a closed end 412 in the longitudinal direction, an open end 411a having a shaft hole 411b formed in the other end thereof, and an accommodation space 413 having one side wall open therein. do. In addition, a guide groove 415 having a predetermined length is formed on an inner wall of the hinge housing 410.                     

The hinge shaft 420 protrudes outward from the open end 411a of the hinge housing 410 through the ridge portion 421 having a curved surface at one end and the shaft hole 411b at the other end thereof. Is provided. One end of the hinge protrusion 423 is formed with a step surface 427 is supported on the inner wall of the hinge housing 410 or is supported by the hinge stopper 450. The hinge shaft 420 rotates in the hinge housing 410 and is fixedly coupled to the main body 210 of the portable wireless terminal. That is, the hinge protrusion 423 protrudes outward of the hinge housing 410 and is coupled to the main body 210. In addition, in order to be fixed to the main body 210, the other end of the hinge protrusion 423 is formed with a plane 425 on the outer peripheral surface.

The hinge cam 430 is formed at one end thereof with a valley portion 431 facing the hill portion 421 of the hinge shaft 420, and is accommodated in the hinge housing 410 to be valley with the hill portion 421. The mold 431 is in sliding contact. In addition, a guide protrusion 433 engaged with the guide groove 415 of the hinge housing 410 is formed on an outer circumferential surface of the hinge cam 430. Accordingly, when the hinge shaft 420 rotates, the hinge cam 430 is linearly reciprocated in the hinge housing 410.

The elastic means 440 preferably uses a coil spring. One end of the elastic means 440 is supported on the inner wall of the closed end 412 of the hinge housing 410, the other end is to support the other end of the hinge cam 430. The elastic force provided by the elastic means 440 presses the hinge cam 430 in a direction to closely contact the ridge portion 421 of the hinge shaft 420 and the valley portion 431 of the hinge cam 430. do.                     

The hinge stopper 450 is fixedly coupled to the inner wall of the hinge housing 410 as a flat plate corresponding to the shape of the inner wall of the open end 411a of the hinge housing 410. The hinge stopper 450 has a through hole 451 through which the hinge protrusion 423 of the hinge shaft 420 passes, and a stopper protruding outside the open end 411a of the hinge housing 410 on one side. 453 is provided. In order to secure the coupling of the hinge stopper 450, a predetermined mounting groove 419 may be formed on an outer circumferential surface of the open end 411a of the hinge housing 410. The hinge protrusion 423 of the hinge shaft 420 is fixedly coupled to the main body 210, while the stopper 453 is curved reciprocally in the direction of the outer circumferential surface of the hinge protrusion 423.

5 and 6 are exploded perspective views showing the configuration of the hinge device of the portable wireless terminal 200 shown in FIG.

Referring to FIG. 5, the hinge dummy 460a constituting the hinge device will be described.

The hinge dummy 460a is accommodated in the side hinge arm 217 (shown in FIG. 3) of the terminal body 210, and the dummy hole 461 to which the hinge protrusion 423 of the hinge module 400 is coupled. Is provided, the guide groove 462 is formed along the movement trajectory of the stopper 453 formed by the opening and closing operation of the folder (250). The stopper 453 is a sliding curve reciprocating motion on the guide groove 462.

First and second sidewalls 463 and 465 are formed at both ends of the guide groove 462, respectively. The movement trajectory of the stopper 453 is limited to a range within 180 degrees by the first and second side walls 463 and 465. That is, the angle at which the folder 250 is opened may be up to 180 degrees from the main body 210.

In addition, a stepped surface 469a having a predetermined height protrudes from one end of the guide groove 462 to form a third sidewall 467 between the first sidewall 463 and the second sidewall 465. Stepped surface 469a extends from the second sidewall 465. A stopper groove 469b corresponding to the stepped surface 469a and the stopper 453 is recessed.

The stopper 453 is in contact with the first sidewall 463 of the hinge dummy 460a with the folder 250 closed by the body 210, and the folder 250 is moved from the body 210. The stopper 453 is in contact with the third side wall 467 in an open state of about 150 degrees.

That is, the third side wall 467 stops the rotation of the folder 250 in a state in which the folder 250 is opened by about 150 degrees from the main body 210. At this time, if the user rotates the folder 250 further, the hinge stopper 450 moves on the stepped surface 469a while retreating to the inside of the hinge housing 410. When the folder 210 continues to rotate so that the stopper 453 and the stopper groove 469b face each other, the stopper 453 and the stopper groove 469b are aligned with each other by an elastic force provided by the elastic means 440. The stopper 453 is no longer moved by the second sidewall 465 and is stopped. Therefore, the folder 250 maintains a stable stop state when the folder 250 is opened by 180 degrees from the main body 210. The folder 250 is stopped in two stages by the second side wall 465 and the third side wall 467, and the third side wall 467 sets the stopping angle of the folder 250 according to the terminal. It can be set at various positions within the range of FIGS.

Meanwhile, the hinge dummy 460b illustrated in FIG. 6 has an inclined surface 469c inclined by a predetermined angle between the first sidewall 463 and the second sidewall 465 formed at both ends of the guide groove 462. The inclined surface 469c extends from the second sidewall 465 to contact the guide groove 462 at a position where the stopper 453 moves in a range of 150 degrees. This makes the stopper 453 easily move along the inclined surface 469c when the folder 250 is first opened at a 150 degree angle and then further opened by a user's operation. A stopper groove 469d corresponding to the stopper 453 is formed on the inclined surface 469c to stop the movement of the stopper 453 when the folder 250 is opened by 180 degrees from the main body 210. do. A fixing jaw (not shown) may be formed at a point where the inclined surface 469c and the guide groove 462 contact each other to more stabilize the stop state of the stopper 453.

In addition, instead of the stepped surface 469a or the inclined surface 469c, a protrusion having the same shape as the ridge 421 of the hinge shaft 420 may be formed on the guide groove 462 to form the stopper 453. You can also set the stop position.

When the hinge module 400 is accommodated in the center hinge arm 257 of the folder 250, the hinge protrusion 423 and the stopper 453 protrude to one end of the center hinge arm 257, and the hinge The dummy 460 is fixed to the side hinge arm 217 of the body 210. The protruding hinge protrusion 423 is coupled to the dummy hole 461 of the hinge pile 460, and the stopper 453 is positioned on the guide groove 462. When the folder 250 rotates, the hinge protrusion 423 is fixed to the dummy hole 461 so that the hinge protrusion 423 rotates with respect to the hinge housing 410, and the stopper 453 is the guide groove 462. Will move on. The folder 250 is first stopped at a position where the stopper 453 and the third side wall 467 or the inclined surface 469c and the guide groove 462 are connected to each other. The first stop state of the folder 250 is about 150 degrees to the main body 210, which is a general voice call mode. When the user further opens the folder 250, the hinge stopper 453 retreats to the inside of the hinge housing 410 and the stopper 453 moves on the stepped surface 469a or the inclined surface 469c. . If the folder 250 is continuously rotated, the stopper 453 is in contact with the second side wall 465, and the hinge stopper 450 is advanced toward the hinge dummy 460 to stop the stopper 453 and the stopper. The grooves 469b and 469d are engaged. Accordingly, the folder 250 is opened by 180 degrees from the main body 210, and the folder 250 is engaged with the stopper 453 and the stopper grooves 469b and 469d to maintain a stable fixed state. do.

In the foregoing detailed description of the present invention, specific embodiments have been described. However, it will be apparent to those skilled in the art that various modifications can be made without departing from the scope of the present invention.

As described above, the hinge device of the portable wireless terminal according to the present invention is easy to use by setting the stop angle in two stages while expanding the opening angle of the folder, and even if the hinge cam or the hinge shaft is worn down for a long time, the hinge The side wall of the dummy or the stopper groove or the like is used to keep the stop position of the folder stable. In addition, as the opening angle of the folder is extended to 180 degrees, the terminal equipped with the camera lens module or the like may achieve harmony between the camera lens module and the display device in more various directions. In addition, when photographing the rear of the terminal, the user opens the folder up to 180 degrees so that the user can conveniently shoot by matching the shooting direction of the camera lens module with the display direction of the display device.

Claims (5)

A main body having side hinge arms formed at both ends of one end thereof, a folder having a center hinge arm coupled between the side hinge arms, and a hinge module accommodated in the center hinge arm to rotatably couple the main body and the folder to each other; In a portable wireless terminal provided, It is accommodated to be movable in the longitudinal direction on one side of the hinge module, protrudes to one end of the center hinge arm, is coupled to the side hinge arm through the inner side of the side hinge arm, the predetermined according to the rotation of the folder A hinge stopper forming a moving trajectory of the hinge stopper; And It is further provided with a hinge pile fixed to the side hinge arm of one side, coupled to the hinge module, the guide groove is formed along the movement trajectory of the hinge stopper, First and second sidewalls that limit the range of movement of the hinge stopper at both ends of the guide groove, and a stepped surface having a predetermined height protrudes at one end of the guide groove so that a third portion is formed between the first sidewall and the second sidewall. A side wall is provided, wherein the stepped surface extends from the second side wall hinge device of a portable wireless terminal. According to claim 1, The hinge stopper is a hinge device of a portable wireless terminal, characterized in that the movement is first stopped by the third side wall, and when the folder is further rotated, the movement is secondarily stopped by the second side wall through the third side wall. . The method of claim 2, And the hinge stopper movement trajectory is 180 degrees between the first sidewall and the second sidewall. According to claim 1, And a stopper groove on which the end of the hinge stopper is fixed on the stepped surface. According to claim 1, The stepped surface is a hinge device of a portable wireless terminal, characterized in that formed in the inclined surface at a predetermined angle with respect to the guide groove.

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