KR102278924B1 - display devices having 2-axial hinge structure of ball type - Google Patents

Abstract

The disclosure relates to a display device including a ball type of a 2-axial hinge structure mounted on a folding unit to fold or unfold a portable display device, such as a smartphone or a tablet, which is foldable, capable of more smoothly folding a main body of a display device or a display unit. According to an embodiment of the disclosure, the display device including the ball type of 2-axial hinge structure includes: a main body having an input unit; a display unit hinged with the main body such that the display unit is relatively foldable; a first driving shaft mounted on left and right folding units of the main body, in which the first hinge is fixed to the first driving shaft; a second driving shaft provided in opposition to the first driving shaft, in which second hinges mounted left and right folding units of the display unit are fixed to the second driving shaft; and a swing structure having coupling holes formed in the same vertical line through left and right sides thereof, such that the first driving shaft and the second driving shaft are rotatably coupled to the coupling holes in a forward direction or reverse direction, wherein the main body or the display unit are relatively folded. In the swing structure, when the display unit is relatively folded within an arbitrary angle range, a plurality of first swing balls and second swing balls, which are arranged to move on the same plane along a first swing groove and a second swinging groove, which are curved, as any one of the first driving shaft and the second driving shaft rotated in the forward direction or the reverse direction is pressed, rotate another one of the first driving shaft and the second driving shaft in a counter direction.

Description

Display devices having 2-axial hinge structure of ball type

The present specification relates to a display device, and more specifically, a ball-type two-axis hinge structure mounted on a folding unit to fold or unfold a portable display device such as a smart phone or a tablet is provided. It relates to a display device.

Unless otherwise indicated herein, the material described in this section is not prior art to the claims of this application, and inclusion in this section is not an admission that it is prior art.

In general, portable foldable devices (so-called mobile devices) such as communication terminals, multimedia devices, and portable computers are connected to a display unit for displaying image information and the display unit to be collapsible relative to the display unit and include input means such as a keypad. It includes a body portion provided with. The mobile device has a folding structure that can be folded into a smaller size for convenience of portability.

Although not shown in the drawing, the driving gear is formed at arbitrary positions on the hinge shaft of the multi-axis type, and the main body having the keyboard part is formed by a plurality of driven gears formed to the same standard as the driving gear and interlocked with the driving gear by meshing (meshing) the The display unit for displaying image information can be folded relative to each other.

In this case, since the drive gear and the driven gear formed in the same standard consist of at least 4 parts, the manufacturing cost and assembly cost increase due to the increase in the number of parts, as well as the hinge structure composed of 4 gears in the folding part of the body part and the display part A space for mounting and a predetermined thickness are required, so that the electronic devices cannot meet the trend of thinning, weight reduction, and compactness, and thus the competitiveness of electronic devices is inferior.

On the other hand, in the case of a hinge device for a portable terminal, since the hinge part for folding the display part relative to the main body part is formed in a cam type, the folding of the display device is not smooth, and the reliability of the electronic device is lowered due to frequent failures.

Republic of Korea Patent Publication No. 10-2011-0139071

An embodiment of the present specification relates to a display device provided with a ball-type two-axis hinge structure so that the structure of the hinge structure can be easily changed in accordance with the trend of display devices that are thinner and lighter in thickness.

An embodiment of the present specification relates to a display device provided with a ball-type two-axis hinge structure so that the main body or the display unit of the display device can be relatively smoothly and smoothly folded.

According to an embodiment of the present specification to achieve the above and other purposes of the present specification,

a body provided with an input unit;

a display unit hingedly connected to the main body to be relatively foldable;

a first drive shaft to which a first hinge mounted on the left and right folds of the main body is fixed;

a second drive shaft to which a second hinge mounted to the left and right folds of the display unit to face the first drive shaft is fixed;

A swing structure in which coupling holes to which the first and second drive shafts are rotatably coupled in a forward or reverse direction are formed through the same vertical line on the left and right sides, and a swing structure for relatively folding the main body or the display unit;

The swing structure

When the main body or the display unit is relatively folded within an angle range, on the same plane along the curved first and second swing grooves by pressing any one of the first and second drive shafts rotated in the forward or reverse directions. Provided is a display device provided with a ball-type two-axis hinge structure characterized in that the other one of the first and second drive shafts is simultaneously rotated in opposite directions by a plurality of first and second swing balls arranged to be moved do.

The display device provided with the ball-type two-axis hinge structure according to the embodiment of the present specification having the above configuration has the following advantages.

Since the structure of the hinge structure can be easily changed according to the trend of display devices that are thinner and lighter, reliability of electronic devices is provided.

In addition, as the main body or the display unit of the display device is folded relative to each other more smoothly, the failure rate is reduced, and thus the electronic device has a commercial value.

1 is a perspective view of a main part of a hinge structure in a display device provided with a ball-type two-axis hinge structure according to a preferred embodiment of the present specification;
2 is an exploded perspective view of the biaxial hinge structure shown in FIG. 1;
Figure 3 (a, b) is a perspective view of the swing coupler and the connecting block constituting the two-axis hinge structure shown in Figure 1,
4 is a view for explaining a swing ball curved motion in the two-axis hinge structure shown in FIG. 1;
5 (a, b, c) is a view for explaining the relative folding (folding mode) of the main body or the display unit in the two-axis hinge structure shown in FIG. 1;
6 (a, b, c) is a view for explaining the relative folding (deployment mode) of the main body or the display unit in the two-axis hinge structure shown in FIG. 1;
FIG. 7 is a view of a display device to which the two-axis hinge structure shown in FIG. 1 is applied.

Hereinafter, a display device having a ball-type two-axis hinge structure according to a preferred embodiment of the present specification will be described in detail with reference to the accompanying drawings.

1 to 6 (a, b, c) and 7, a display device provided with a ball-type two-axis hinge structure according to an embodiment of the present specification (for example, a portable device such as a smartphone or tablet) Mobile devices (also referred to as 'portable electronic devices') are

a body 10 provided with an input unit;

a display unit 11 hingedly connected to the main body 10 to be relatively foldable;

a first drive shaft 13 to which a first hinge 12 mounted on the left and right folds of the main body 10 is fixed;

a second drive shaft 15 to which a second hinge 14 mounted to the left and right folds of the display unit 11 opposite to the first drive shaft 13 is fixed;

A coupling hole through which the first drive shaft 13 and the second drive shaft 15 are rotatably coupled in the forward or reverse direction is formed through the same vertical line on the left and right sides, and the main body 10 or the display unit 11 is relatively folded A swing structure (16) for

The aforementioned swing structure 16 is

When the main body 10 or the display unit 11 is relatively folded within an angle range, a curve (as an example, A plurality of first swing balls 19 and second swing balls 20 arranged to move on the same plane along the first swing groove 17 and the second swing groove 18 of the 'S' shape) It is characterized in that the other one of the first and second drive shafts 13 and 15 is rotated in the opposite direction at the same time by

According to a more preferred embodiment, as in FIGS. 1 and 2 , the swing structure 16 described above is

A connecting block 21 disposed in the middle and preventing the first and second swing balls 19 and 20 from being separated from the first and second swing grooves 17 and 18, and left and right sides of the connecting block 21 A swing member 24 including a left-right symmetrical left swing coupler 22 and a right swing coupler 23 that are closely attached and rotatably arranged in the forward or reverse direction;

a first body 25 in close contact with the upper surface of the swing member 24 and having a first swing groove 17 formed on the bottom surface so that the first swing ball 19 is seated and moved;

A second body in close contact with the bottom surface of the swing member 24, the second swing groove 18 is formed on the upper surface symmetrically with the first swing groove 17 so that the second swing ball 20 is seated and moved ( 26);

2 and 3 (b), the upper and lower connection pins 27 and the lower connection pin 28 which are formed to protrude at arbitrary positions on the upper and lower surfaces of the above-described connection block 21;

and first and second support holes 29 and 30 formed on the bottom and upper surfaces of the first and second bodies 25 and 26 so as to correspond to the upper connecting pin 27 and the lower connecting pin 28;

The first and second bodies 25 and 26 on the upper and lower portions of the swing member 24 by mutual coupling of the upper connecting pin 27 and the lower connecting pin 28 and the first and second support holes 29 and 30 It is characterized in that it is integrally fixed.

As in FIGS. 2, 5 (a, b), and 6 (a, b), the aforementioned first and second swing grooves 17 and 18 are

A first seating groove 31 of a straight line formed in the longitudinal direction on the middle side of the first and second bodies 25 and 26 so that the first and second swing balls 19 and 20 are seated;

It is formed on the inner periphery of the left and right first and second coupling holes 32 and 33 of the first and second bodies 25 and 26 so as to extend to the left and right sides of the first seating groove 31, and the first, It is characterized in that it includes a second seating groove 34 in the form of a circumference in which the two swing balls 19 and 20 are seated.

2 and 3 (a), the left and right swing couplers 22 so as to make a circular motion along the second seating groove 34 when the above-described first drive shaft 13 or second drive shaft 15 is rotated. , 23) with a swing protrusion 35 protruding from the upper surface and the bottom surface;

When the main body 10 or the display unit 11 is relatively folded within an arbitrary angle range, the first swing ball 19 or the second swing is caused by the swing protrusion 35 that moves in a circular motion in the second seating groove 34 . By pressing the ball 20 and moving along the first swing groove 17 or the second swing groove 18, the rotational force is transmitted to any one of the left and right swing couplers 22 and 23 to rotate do it with

2 and 3 (a, b), the left and right contact surfaces of the connection block 21 so as to be in close contact with the outer periphery of the aforementioned left and right swing couplers 22 and 23 and smoothly move in a circle. It is characterized in that it is formed in this curved surface.

Hereinafter, a display device provided with a ball-type two-axis hinge structure according to an embodiment of the present specification will be described with reference to the accompanying drawings.

As shown in Figs. 5 (a) and 6 (a), the body 10 is hinge-connected in a relatively foldable manner by the aforementioned first and second hinges 12 and 14 and first and second drive shafts 13 and 15. ) and the display device including the display unit 11 are commonly used in electronic devices such as portable smart phones or tablet PCs, which are the technical fields to which this specification is applied, so detailed descriptions of their configurations and methods of use will be omitted. .

5(a) and 7, when the above-described display device is relatively folded in the forward direction (clockwise) (ie, the main body 10 and the display unit 11 are unfolded from 180 degrees to 90 degrees or 0 degrees) The main body 10 on which the first hinge 12 is mounted is rotated in the forward direction (clockwise) around the first drive shaft 13 . At this time, the display unit 11 on which the second hinge 14 is mounted rotates in the reverse direction (counterclockwise direction) around the second drive shaft 15 .

In detail, when the first drive shaft 13 is rotated by the folding operation of the body 10, the left swing coupler 22 coupled to the first drive shaft 13 is rotated by an arbitrary angle in the circumferential direction, S-shaped by pressing the plurality of first swing balls 19 seated in the first swing groove 17 of the first body 25 by the rotation of the swing protrusion part 35 formed on the upper surface of the left swing coupler 22 to make a curved motion.

As shown in Figure 5 (b), the left swing coupler 22 by the rotation of the swing protrusion 35 of the left swing coupler 22, which is rotated in the forward direction (clockwise) by the above-described first drive shaft 13 rotation. As one end of the first swing ball 19 located in the second seating groove 34 of curve motion of

At the same time, as shown in FIG. 5(c), the upper surface of the second body 26 in close contact with the bottom surface of the swing member 24 is symmetrical with the first swing groove 17 of the first body 25. The second swing ball 20 seated in an S-shape is pressed in the formed second swing groove 18 to make a curved motion from the left to the right in the drawing along the second swing groove 18 .

As described above, when the first drive shaft 13 mounted on the main body 10 rotates, the first swing ball 19 is moved by the rotation of the swing protrusion 35 of the left swing coupler 22 of the first body 25 . A curved motion is made in an S-shape along the first swing groove 17 (moved from right to left) (see Fig. 5(a,b)), and at the same time, the second drive shaft mounted on the display unit 11 ( 15) During rotation, the second swing ball 20 is moved along the second swing groove 18 of the second body 26 by the rotation of the swing protrusion 35 of the right swing coupler 23, and the first swing ball 19 ) and the S-shaped curve in the opposite direction (moving from left to right) (see Fig. 5(a,c)).

For this reason, when the above-described first drive shaft 13 is rotated, the second drive shaft is caused by the first and second swing balls 19 and 20 that are curved in an S-shape along the first and second swing grooves 17 and 18 . As (15) is simultaneously interlocked and rotated in the opposite direction to the first driving shaft (13), the display device including the main body (10) and the display unit (11) can be relatively folded in the forward direction.

6(a) and 7, when the above-described display device is relatively folded in the reverse direction (counterclockwise direction) (ie, the main body 10 and the display unit 11 are folded from 0 degrees to 90 degrees or 180 degrees). The main body 10 on which the first hinge 12 is mounted is rotated in the reverse direction (counterclockwise direction) around the first driving shaft 13 . At this time, the display unit 11 on which the second hinge 14 is mounted rotates in the forward direction (clockwise) around the second driving shaft 15 .

To explain this in detail, as in Fig. 6(a,b), the right swing coupler 23 coupled to the second drive shaft 15 when the above-described second drive shaft 15 rotates in the forward direction (clockwise) also It rotates in the forward direction and is seated in the first swing groove 17 and the second seating groove 34 of the first body 25 by the rotation of the swing protrusion 35 formed on the upper surface of the right swing coupler 23 . The dog's first swing ball 19 is pressed to make a curved motion in an S-shape.

That is, by the rotation of the swing protrusion 35 of the right swing coupler 23 which is rotated in the forward direction by the above-described second drive shaft 15 rotation, the first position located in the second seating groove 34 of the right swing coupler 23 is rotated. As one end of the swing ball 19 is pressed, the first swing ball 19 makes an S-shaped curved motion from the left to the right in the drawing.

At the same time, as shown in FIG. 6 ( a , c ), the upper surface of the second body 26 in close contact with the bottom surface of the swing member 24 is symmetrical to the first swing groove 17 of the first body 25 . The second swing groove 18 and the second swing ball 20 seated in the S-shape in the second seating groove 34 of the right swing coupler 23 are pressed to make a curved movement from the right to the left in the drawing. will make it

As described above, when the second drive shaft 15 mounted on the main body 10 rotates in the forward direction, the first swing ball 19 is moved by the rotation of the right swing coupler 23 in the first swing of the first body 25 . A curved motion is made in an S-shape along the groove 17 and the second seating groove 34, and at the same time, the left swing coupler 22 is rotated in the reverse direction of the first drive shaft 13 mounted on the display unit 11. By the rotation of the second swing ball 20 in the opposite direction to the first swing ball 19 along the second swing groove 18 and the second seating groove 34 of the second body 26 S-shape to make a curved motion.

For this reason, when the aforementioned second drive shaft 15 is rotated, the first drive shaft is caused by the first and second swing balls 19 and 20 that are curved in an S-shape along the first and second swing grooves 17 and 18 . As the second drive shaft 15 and the second drive shaft 15 are simultaneously rotated and rotated in the opposite direction, the display device including the main body 10 and the display unit 11 can be relatively folded in the reverse direction.

Here, although the foregoing specification has been described with reference to preferred embodiments, those skilled in the art can variously modify and modify the present specification without departing from the spirit and scope of the present specification as set forth in the following claims. You will understand that you can change it.

10; main body
11; display unit
12; 1st hinge
13; 1st drive shaft
14; 2nd hinge
15; 2nd drive shaft
16; swing structure
17; 1st swing home
18; 2nd swing home
19; 1st swing ball
20; 2nd swing ball
21; connection block
22; left swing coupler
23; right swing coupler
24; swing member
25; 1st body
26; 2nd body
27; upper connecting pin
28; lower connecting pin
29; 1st support hole
30; 2nd support hole
31; 1st seating groove
32; first coupling hole
33; 2nd coupling hole
34; 2nd seating groove
35,35a; swing protrusion

Claims (6)

a body provided with an input unit;
a display unit hingedly connected to the main body in a relative foldable manner;
a first drive shaft to which a first hinge mounted on the left and right folds of the main body is fixed;
a second driving shaft to which a second hinge mounted to the left and right folds of the display unit to face the first driving shaft is fixed;
A swing structure in which coupling holes to which the first and second drive shafts are rotatably coupled in a forward or reverse direction are formed through the same vertical line on the left and right sides, and a swing structure for relatively folding the main body or the display unit;
The swing structure
When the main body or the display unit is relatively folded within an angle range, on the same plane along the curved first and second swing grooves by pressing any one of the first and second drive shafts rotated in the forward or reverse directions. A display device provided with a ball-type two-axis hinge structure, characterized in that the other one of the first and second drive shafts is simultaneously rotated in opposite directions by a plurality of first and second swing balls arranged to be moved. According to claim 1,
The swing structure
A connection block disposed in the middle and preventing the first and second swing balls from being separated from the first and second swing grooves, and a left-right symmetric type in close contact with the left and right sides of the connection block and rotatably arranged in the forward or reverse direction a swing member including a left swing coupler and a right swing coupler;
a first body in close contact with the upper surface of the swing member and having the first swing groove formed on the bottom surface so that the first swing ball is seated and moved;
a second body in close contact with the bottom surface of the swing member, the second swing groove being formed on the upper surface symmetrically with the first swing groove so that the second swing ball is seated and moved; A display device having a type two-axis hinge structure. 3. The method of claim 2,
upper and lower connecting pins protruding from the upper and lower surfaces of the connecting block;
and first and second support holes formed on the bottom and upper surfaces of the first and second bodies to correspond to the upper and lower connecting pins;
The first and second bodies are integrally fixed to the upper and lower portions of the swing member by mutual coupling of the upper and lower connecting pins and the first and second support holes. display device. 3. The method of claim 2,
The first and second swing grooves are
a first straight seating groove formed in the longitudinal direction on the middle side of the first and second bodies so that the first and second swing balls are seated;
It is formed on the inner periphery of the left and right first and second coupling holes of the first and second bodies so as to extend to the left and right sides of the first seating groove, and has a cylindrical shape on which the first and second swing balls are seated. A display device provided with a ball-type two-axis hinge structure comprising two seating grooves. 5. The method of claim 4,
Swing protrusions protruding from the top and bottom surfaces of the left and right swing couplers so that they can move in a circle along the second seating groove when the first or second drive shaft is rotated;
When the main body or the display unit is relatively folded within an angle range, the first swing ball or the second swing ball is pressed by the swing protrusion moving in a circular motion in the second seating groove to press the first swing ball or the second swing ball. A display device provided with a ball-type two-axis hinge structure, characterized in that it is rotated by transmitting a rotational force to any one of the left and right swing couplers as it moves along the swing groove. 3. The method of claim 2,
A display device provided with a ball-type two-axis hinge structure, characterized in that the left and right contact surfaces of the connection block are formed in a curved surface so as to be in close contact with the outer periphery of the left and right swing couplers to smoothly move in a circle.

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