KR100789664B1 - A cellular phone having slide-folding opening and closing mechanism - Google Patents

Abstract

A portable terminal having a slide folding opening/closing device is provided to enable a sub body to perform a folding operation again after being slid from a main body and to automatically rotate, thus the sub body can be opened at convenient angle for a user despite the sliding opening/closing type portable terminal. A hinge unit comprises as follows. The first cam(40) is fixed to a folding body(30), and is consecutively equipped with a mountain unit and a valley unit on one side. A housing(50) is fixed to a main body(10). The second cam(60) is contained in the housing(50), is capable of advancing/retreating toward the first cam(40) while rotation within the housing(50) is unavailable, and is equipped with a valley unit and a mountain unit corresponding to the mountain unit and the valley unit of the first cam(40). A compression torsion spring(70) pushes the second cam(60) toward the first cam(40), and is supported on the housing(50) or the second cam(60) to generate force which rotates the first cam(40).

Description

A mobile terminal having a slide folding switch {A CELLULAR PHONE HAVING SLIDE-FOLDING OPENING AND CLOSING MECHANISM}

1 is a cutaway perspective view of a mobile terminal according to one embodiment of the present invention;

2 is an exploded perspective view of the hinge device shown in FIG.

3 is a front view of the engaged state of the hinge device shown in FIG.

4 and 5 are a perspective view for showing the coupling relationship of the main components constituting the hinge device shown in FIG.

6 is a perspective view of the inside of the mobile terminal shown in FIG. 1 transparently;

7 is a perspective view of a state in which the sub body of the portable terminal shown in FIG. 6 is closed;

8 is a perspective view of a sub body of the mobile terminal illustrated in FIG. 7 in a slid state;

FIG. 9 is a perspective view of a state in which the sub body of the portable terminal illustrated in FIG. 7 is folded.

<Explanation of symbols for main parts of drawing>

10: main body 20: sub body

30: folding body 40: the first cam

42: ridge 44: bone

46: guide shaft 48: square

50: housing 60: second cam

62: first fixing groove 70: compression torsion spring

72: first hanger 74: second hanger

80: spring fixing portion 82: square hole

84: second fixing groove 90: E-ring

92: washer

The present invention relates to a portable terminal having a slide-folding opening and closing device, and in particular, by allowing the sub-body to slide from the main body and then to the folding operation and to be automatically rotated, the sub-body is convenient for the user even in the sliding-opening and closing mobile terminal. Is to open.

Recently, as the penetration rate of portable wireless terminals increases, additional functions that are suitable for the user's taste are required for the portable terminal, as well as simple functions of wireless communication.

In response to these demands, portable terminals have evolved from a general bar type to a flip type, a flip up type, a folder type, and the like. To achieve.

This is because the folder type terminal has enough space to adopt the wide LCD module as a display device, and because it is folded in half and portable, the portability is superior to other terminals.

On the other hand, it is possible to have a display device having a wide LCD module of a similar size as a folder type terminal, and at the same time, a slide type terminal capable of contributing to the miniaturization of the terminal is known.

Such a slide type terminal has an additional advantage that the sub body corresponding to the cover is opened and closed by a sliding operation on the main body, and is opened and closed by a new operation while maintaining the advantages of the existing folder type terminal.

As such a slide type terminal, a sliding type portable wireless terminal is disclosed in Utility Model Registration No. 2003-0000136.

In the terminal disclosed in the present application, as a guide means for guiding the sub body on the main body, guide slits are formed in the longitudinal direction on both sides of the main plate, and guide ribs slidably coupled to the guide slits are formed on the slide plate.

In the terminal, the guide rib is slid along the guide slit so that the slide plate and the sub body are linearly opened and closed from the main plate and the main body.

On the other hand, in such a sliding terminal, the sub body having the LCD screen moves in parallel from the main body with the keypad. Therefore, the keypad and the LCD screen always maintain 180 ° in parallel.

When the user uses the LCD screen of the terminal for text communication and DMB reception, the user places the terminal in front of the user and alternately works by switching between the keypad of the main body and the LCD screen of the sub body.

In this case, the distance of the terminal branch from the user is about 40cm, and the angle of opening of the main body and the sub body from the user's eyes is about 20 °. Therefore, even in this case, it is most convenient for the terminal to maintain an opening angle of about 160 °.

However, the conventional sliding type terminal has an opening angle of 180 ° of the main body and the sub body, so that the user may feel uncomfortable even when viewing the LCD screen.

As described above, the conventional sliding type terminal has a disadvantage in that the sub body is simply opened from the main body in a slide operation, and thus the opening angle of the main body and the sub body is 180 °, resulting in inconvenience in use.

The present invention has been made to solve the above problems, and an object of the present invention is to slide the sub body back to the folding operation and to automatically rotate after the sub body is slid from the main body, so that the sub body in the sliding opening and closing type mobile terminal To open at an angle convenient to the user.

The present invention for achieving the above object, the main body;

A sub body partially in surface contact with the main body;

A folding body slidably holding the sub body and placed side by side with the main body; And

A portable terminal having a slide folding opening and closing device comprising a hinge means for rotating the folding body from the main body to the folding operation and automatically when the sub body is slid from the upper surface of the main body to move completely toward the folding body. To provide.

The hinge means,

A first cam fixed to one side of the main body or the folding body and having a ridge and a valley formed continuously on one surface thereof;

A housing fixed to a side of the main body or the folding body in which the first cam is not fixed;

A second cam contained in the housing, the second cam having a shape in which the rotation is impossible in the housing and the forward and backward movement toward the first cam is possible, and the valley portion and the valley portion corresponding to the valley portion and the valley portion are formed; And

And a compression torsion spring that pushes the second cam toward the first cam and is simultaneously supported by the housing or the second cam to generate a force to rotate the first cam.

A guide shaft penetrating the housing is formed in the first cam, and a square portion is formed in the guide shaft.

A spring fixing part having a shape that is rotated inside the housing by an angle at which the folding body is folded is installed, and the spring fixing part is formed with a square hole to which the square part is coupled to be coupled to the guide shaft.

One end of the compression torsion spring may be fixed to the spring fixing part.

The spring fixing part may limit the rotation angle of the first cam and the folding body as the rotation angle is limited in the housing by its shape.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1 is an exploded perspective view of a portable terminal according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the hinge device shown in FIG. 1, and FIG. 3 is a front view of the coupled state of the hinge device shown in FIG. 2. 4 and 5 are perspective views for showing the coupling relationship of the main components constituting the hinge device shown in Figure 2, Figure 6 is a perspective view showing the inside of the portable terminal shown in FIG.

The terminal shown in this figure includes a main body 10; A sub body 20, part of which is in surface contact with the main body 10; A folding body 30 which slidably holds the sub body 20 and which is parallel to the main body 10; And a hinge means for rotating the folding body 30 from the main body 10 in a folding operation and automatically when the sub body 20 is slid from the upper surface of the main body 10 and completely moves toward the folding body 30. Is done.

In the main body 10, a keypad is installed at a portion facing the sub body 20, and various substrates, chips, and the like are embedded therein. An upper surface of the sub body 20 is provided with a liquid crystal display for displaying the output signal of the main body 10.

When the sub body 20 spans the main body 10, the bottom surface of the sub body 20 contacts the top surface of the main body 10 so that the folding body 30 is not folded, but the sub body 20 does not operate. ) Is completely moved toward the main body 10, the folding rotation of the folding body 30 is possible.

The sub body 20 is slidably coupled to the folding body 30 by a conventional guide rib coupling structure or a rod and holder coupling structure. The sub body 20 is only in surface contact with the main body 10 and is not mechanically connected to the opening and closing structure. However, the signal line for driving the display unit installed in the sub body 20 is connected to the sub body 20 from the main body 10.

The hinge means includes: a first cam 40 fixed to the folding body 30 and having a ridge portion 42 and a valley portion 44 continuously formed on one surface thereof; A housing 50 fixed to the main body 10; It is contained in the housing 50, it is impossible to rotate in the housing 50 and the forward and backward toward the first cam 40 has a shape possible, the bone corresponding to the ridge 42 and the valley 44 A second cam 60 (not shown) and a mountain portion (not shown) formed; And a compression torsion spring 70 for pushing the second cam 60 toward the first cam 40 and simultaneously supporting the housing 50 or the second cam 60 to rotate the first cam 40. )

A guide shaft 46 penetrating the housing 50 is formed in the first cam 40, and a square portion 48 is formed in the guide shaft 46.

A spring fixing part 80 having a shape that is rotated inside the housing 50 by an angle at which the folding body 30 is folded is installed, and a square hole in which the square part 48 is coupled to the spring fixing part 80 is installed. 82 is formed and engaged with the guide shaft 46.

One end of the compression torsion spring 70 is formed with a first hook portion 72 that is bent, and a second fixing groove 62 is formed on the second cam 60 to catch the first hook portion 72. The first hook portion 72 is inserted into the first fixing groove 62 to fix one end of the compression torsion spring 70.

In addition, the second hook portion 74 is bent at the other end of the compression torsion spring 70, and the second fixing groove 84 is formed at the spring fixing portion 80 to catch the second hook portion 74. The second hook portion 74 is inserted into the second fixing groove 84 to fix the other end of the compression torsion spring 70.

Compression torsion spring 70 is similar in shape to a general compression spring to generate the expansion force, while both ends are fixed to the second cam 60 and the spring fixing portion 80 to generate a torque which is a function of the torsion spring. As the material of the compression torsion spring 70, it is necessary to use a metal material which is excellent in elasticity and restoring force and which is not easily damaged by a lot of displacement in a long time.

The spring fixing part 80 serves to limit the rotation angle of the first cam 40 and the folding body 30 as the rotation angle is limited in the housing 50 by its shape.

The guide shaft 46 passes through the center of the second cam 60, the compression torsion spring 70, and the housing 50, and the e-ring 90 and the washer 92 protrude out of the housing 50. Is coupled to prevent separation of the guide shaft 46.

Since the main body 10, the folding body 30, and the sub body 20 are horizontal, the compression torsion spring 70 moves the first cam 40 and the folding body 30 from the main body 10. It installs in the state which accumulated the force to rotate by folding operation.

Hereinafter, the operation of the mobile terminal having the above configuration will be described.

FIG. 7 is a perspective view of a sub body of the portable terminal shown in FIG. 6 in a closed state, FIG. 8 is a perspective view of a sub body of the portable terminal shown in FIG. 7, and FIG. 9 is of FIG. A perspective view of the sub body of the mobile terminal in a folded state.

In the state where the sub body 20 is closed to the main body 10, the compression force of the compression torsion spring 70 is applied to the second cam 60 so that the ridge portion 42 and the valley portion () of the first cam 40 ( 44 is coupled to the valley 44 and the hill 42 of the second cam 60 to generate a predetermined braking force.

And the torque of the compression torsion spring 70 acts in the direction of rotating the guide shaft 46, the first cam 40 and the folding body 30, the sub-body 20 and the upper surface of the main body 10 Since the upper and lower surfaces of the folding body 30 are respectively extended, the folding rotation of the folding body 30 is not performed as shown in FIG. 7.

When the user pushes the sub body 20, as shown in FIG. 8, the sub body 20 is slid to move all from the upper surface of the main body 10 toward the folding body 30.

Accordingly, the force that prevented the rotation of the folding body 30 is lost, and the folding body 30 is in a state in which the folding operation can be rotated.

Therefore, the torque of the compression torsion spring 70 is transmitted to the folding body 30 through the guide shaft 46 and the first cam 40 so that the folding body 30 rotates in the folding operation.

Since the folding body 30 rotates together with the sub body 20, when the sub body 20 and the display part rotate at an appropriate angle with respect to the main body 10 as shown in FIG. 9, the spring fixing part 80 is connected to the housing ( The rotation of the guide shaft 46 and the first cam 40 and the folding body 30 is stopped because it can no longer rotate within 50.

In this way, the angle formed by the sub body 20 and the main body 10 becomes an angle that is convenient for the user to view and suitable for communication.

The restoring of the sub body 20 to the initial position is performed in the reverse order to the above process.

As described above, according to the present invention, the sub-body is slid from the main body and then rotated again by folding operation and automatically, so that the sub-body can be maintained at a convenient angle for the user even in a sliding opening / closing portable terminal. have.

In the above, the present invention has been described as a specific embodiment, but the present invention is not limited to the above-described embodiment, and the present invention is not limited to the scope of the present invention as claimed in the claims, and has ordinary knowledge in the field to which the present invention belongs. Anyone who grows up will be able to make various variations.

Claims (4)

delete Main body; A sub body in surface contact with the main body; A folding body slidably holding the sub body and placed side by side with the main body; And When the sub-body is slid from the upper surface of the main body to move completely toward the folding body, it comprises a hinge means for rotating the folding body from the main body in the folding operation and automatically, The hinge means, A first cam fixed to one side of the main body or the folding body and having a ridge and a valley formed continuously on one surface thereof; A housing fixed to a side of the main body or the folding body in which the first cam is not fixed; A second cam contained in the housing, the second cam having a shape in which the rotation is impossible in the housing and the forward and backward movement toward the first cam is possible, and the valley portion and the valley portion corresponding to the valley portion and the valley portion are formed; A compression torsion spring that pushes the second cam toward the first cam and is simultaneously supported by the housing or the second cam to generate a force to rotate the first cam; A guide shaft formed in the first cam to penetrate the housing; And It comprises a spring fixing portion that rotates with the guide shaft, One end of the compression torsion spring is fixed to the second cam, the other end is fixed to the spring fixing portion, the portable terminal having a slide folding opening and closing device, characterized in that for generating a force for rotating the first cam. The method according to claim 2, The spring fixing portion has a shape that is rotated inside the housing by the angle at which the folding body is folded, The guide shaft is formed with a square portion, The spring fixing part is a mobile terminal having a slide folding opening and closing device characterized in that the square hole is coupled to the square portion is coupled to the guide shaft. The portable terminal of claim 3, wherein the spring fixing part limits the rotation angles of the first cam and the folding body as the rotation angle is limited in the housing by the shape thereof.

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