WO2022118998A1

WO2022118998A1 - Foldable hinge device

Info

Publication number: WO2022118998A1
Application number: PCT/KR2020/017430
Authority: WO
Inventors: 민경진
Original assignee: 주식회사 한빛티앤아이
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2022-06-09

Abstract

A foldable hinge device is disclosed. The foldable hinge device, according to one embodiment, has a display panel attached thereto, connects a first body and a second body which are disposed on both sides thereof, and carries out a folding or unfolding operation by rotating the first body and the second body simultaneously, the foldable hinge device comprising: a finishing member which is disposed on both side surfaces of a first body and a second body, and has a plurality of partitions formed on the inner side thereof; a hinge unit part which is attached to the inner side of the finishing member so as to be foldably operated, and is connected to the first body and the second body; a first bracket which is connected to one side of the hinge unit part and rotates; a second bracket which is connected to the other side of the hinge unit part and rotates in the opposite direction from the first bracket; a first attachment plate which is attached to the first bracket and attached to the first body; and a second attachment plate which is attached to the second bracket and attached to the second body. Accordingly, the two bodies, to which a display panel is attached, are connected so as to enable the uniform implementation of an operation in which the bodies on both sides are folded or unfolded by opposite operations, and thus accuracy may be improved, noise may be prevented, and the effect of reducing manufacturing costs may be achieved by adopting a simple configuration.

Description

foldable hinge device

The present disclosure relates to a foldable hinge device, and more particularly, to a foldable hinge device that is applied to a foldable display device such as a foldable mobile phone or tablet to induce a folding or unfolding operation.

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.

While the size of electronic devices, such as mobile phones and e-books, has been reduced, display screens such as LCDs are on the rise. However, there is a limit to the enlargement of the display while reducing the size of the product.

For example, in order to satisfy the needs of consumers who prefer large display screens even though they are small electronic devices, liquid crystal screens are formed on both hinged bodies, and when the electronic device is unfolded, the two liquid crystal screens are combined to form one It is necessary to provide an electronic device of a type that forms a large screen, and also a hinge device of a type suitable for this is required.

Among the prior art, a terminal using a double hinge having two axes facing in different directions has been proposed.

A terminal having a double hinge includes a first hinge that rotates while maintaining the horizontal between the main folder and the subfolder, and includes a second hinge that rotates at a predetermined angle between the main folder and the subfolder, so that the angle between the subfolder and the main folder This was done so that it could be adjusted in various ways.

However, in the prior art, even if it has a double hinge, the angle is not evenly distributed in the process of folding or unfolding both members at the same angle, so there is a problem that the folding operation becomes unbalanced, and the thickness of the hinge device is greatly increased there was a problem with

The disclosed content connects the two bodies to which the display panel is attached, but the operation of folding or unfolding the two bodies by opposite operations can be equally implemented, so that the accuracy can be improved, and noise is prevented. It is an object of the present invention to provide a foldable hinge device that can reduce manufacturing costs by adopting a simple configuration.

The object of the embodiment is to connect the first body and the second body to which the display panel is attached, and to rotate the first body and the second body at the same time to fold or unfold the first body and the second body. 2 A finishing member disposed on both sides of the body and having a plurality of diaphragms formed therein; a hinge unit attached to the inside of the closing member and operated by folding and connected to the first body and the second body; a first bracket connected to one side of the hinge unit and rotated; a second bracket connected to the other side of the hinge unit and rotated in a direction opposite to the first bracket; a first attachment plate attached to the first bracket and attached to the first body; It can be achieved by a foldable hinge device including; a second attachment plate attached to the second bracket and attached to the second body.

According to one embodiment, the hinge unit portion is attached to the inside of the closing member, the hinge base portion consisting of an upper body and a lower body, and a shaft connected between the upper body and the lower body; A first intermediate body having a fitting hole through-coupled to the shaft of the hinge base portion, a connecting bar obliquely symmetrically formed on both sides of the first intermediate body, and a first hinge circuit formed with first and second hinge pins at the ends of both connecting bars Eastern; An insertion space into which the first intermediate body of the first hinge rotation part is inserted is formed, a second intermediate body having fitting holes for penetratingly coupled to the shaft of the hinge base part, and a connecting bar formed obliquely and symmetrically on both sides of the second intermediate body; It includes; a second hinge pivoting portion formed with third and fourth hinge pins at the ends of both connecting bars.

According to an embodiment, the first bracket is coupled to the third hinge pin of the second hinge rotating part, a long hole to which the first hinge pin of the first hinge rotating part is coupled is formed and rotated, and the second bracket is It is coupled to the second hinge pin of the first hinge rotating part, and a long hole to which the fourth hinge pin of the second hinge rotating part is coupled is formed and rotated.

According to an embodiment, each of the first and second attachment plates is formed on the first attachment plate or the second attachment plate, and when the first attachment plate or the second attachment plate is folded to be in a parallel state, it includes a stopper part that can be fixed in the folded state. do.

According to an embodiment, the stopper part is coupled to the first or second attachment plate and is coupled to a housing having holes symmetrically formed on both sides, and a stopper hole protruding through the through holes on both sides of the housing and coupled to the stopper hole formed in the diaphragm of the closing member or It consists of a spherical protrusion that is separated and a spring that provides a force to protrude the spherical protrusion, and the spring is inserted therein, and the spherical protrusion is coupled such that a portion thereof protrudes through a through hole formed in the wall surface of the housing.

According to the disclosed embodiment, the two bodies to which the display panel is attached are connected, but the operation of folding or unfolding the two bodies by opposing operations can be equally implemented so that accuracy can be improved, and noise generation is reduced. It can be prevented, and there is an effect of reducing the manufacturing cost by taking a simple configuration.

1 is an exploded perspective view showing a display device having a foldable hinge device formed thereon according to an embodiment;

2 is a side view showing a 'hinge unit part' of the foldable hinge device according to the embodiment;

3 is a front view showing a 'hinge unit part' of the foldable hinge device according to the embodiment;

4 is an exploded perspective view showing the coupling relationship between the 'hinge unit part' and the 'first and second attachment plates' of the foldable hinge device according to the embodiment;

5 is an exploded perspective view schematically showing a 'hinge unit part' of the foldable hinge device according to the embodiment;

6 is an exploded perspective view showing in detail a 'hinge unit part' of the foldable hinge device according to the embodiment;

7 is a plan view showing a folded state of the 'hinge unit part' of the foldable hinge device according to the embodiment;

8 is a plan view showing an unfolded state of the 'hinge unit part' of the foldable hinge device according to the embodiment;

9 is a perspective view showing a combination of a 'hinge unit part' and a 'first attachment plate' of the foldable hinge device according to the embodiment;

10 is a front view showing a 'stopper part' of the foldable hinge device according to the embodiment;

11 is an exploded perspective view of a 'stopper part' of the foldable hinge device according to the embodiment;

Hereinafter, preferred embodiments will be described in detail with reference to the accompanying drawings.

The embodiments to be described below are intended to describe in detail enough to be easily implemented by a person of ordinary skill in the art to which the present invention pertains, thereby limiting the technical spirit and scope of the present invention. doesn't mean

In addition, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of explanation, and terms specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. It should be noted that definitions of these terms should be made based on the content throughout this specification.

Of the accompanying drawings, FIG. 1 is an exploded perspective view showing a display device having a foldable hinge device formed thereon according to an embodiment, FIG. 2 is a side view showing a 'hinge unit part' of the foldable hinge device according to the embodiment, and FIG. 3 is an embodiment A front view showing the 'hinge unit part' of the foldable hinge device according to the embodiment, and FIG. 4 is an exploded view showing the coupling relationship between the 'hinge unit part' and the 'first and second attachment plates' of the foldable hinge device according to the embodiment A perspective view, FIG. 5 is an exploded perspective view schematically showing the 'hinge unit part' of the foldable hinge device according to the embodiment, and FIG. 6 is an exploded perspective view showing the 'hinge unit part' of the foldable hinge device according to the embodiment in detail 7 is a plan view showing a folded state of the 'hinge unit part' of the foldable hinge device according to the embodiment, and FIG. 8 is a plan view showing the unfolded state of the 'hinge unit part' of the foldable hinge device according to the embodiment, FIG. 9 is a perspective view showing the combination of the 'hinge unit part' and the 'first attachment plate' of the foldable hinge device according to the embodiment, and FIG. 10 is a front view showing the 'stopper part' of the foldable hinge device according to the embodiment; 11 is an exploded perspective view of the 'stopper part' of the foldable hinge device according to the embodiment.

As shown in FIG. 1 , in the display device in which the foldable hinge device is formed according to the embodiment, a first body B1 and a second body B2 having the same area and size are disposed on both sides, and the first body A display panel is attached to the front surfaces of (B1) and the second body (B2), the first body (B1) and the second body (B2) disposed on both sides are connected, and the first body (B1) and the second body (B2) are connected. It is configured to include a foldable hinge device (A) for folding or unfolding by rotating the body (B2) at the same time.

2 to 10, the foldable hinge device (A) is,

a finishing member 100 disposed on both sides of the first body B1 and the second body B2 and having a plurality of diaphragms 130 formed therein;

a hinge unit part (H) attached to the inside of the closing member 100 and operated by folding and connected to the first body (B1) and the second body (B2);

a first bracket 110 connected to one side of the hinge unit portion H and rotated;

a second bracket 120 connected to the other side of the hinge unit H and rotated in a direction opposite to the first bracket 110;

a first attachment plate (B11) attached to the first bracket (110) and attached to the first body (B1);

It is attached to the second bracket 120, the second attachment plate (B22) attached to the second body (B2); is configured to include.

The finishing member 100 has a length corresponding to the side length of the first body (B1) or the second body (B2), and an arc-shaped recess concave inward is formed, and the diaphragm 130 is formed horizontally on the inside. A pair of diaphragms 130 are formed to be spaced apart from each other in the upper and lower sides as shown in FIG. 3 .

A stopper part 200 to be described later is coupled between the pair of diaphragms 130 .

5 to 8, the hinge unit portion (H),

A hinge base portion 210 attached to the inside of the closing member 100 and composed of an upper body 212 and a lower body 214, and a shaft 216 connected between the upper body 212 and the lower body 214. ;

A first intermediate body 221 having a fitting hole 223 penetratingly coupled to the shaft 216 of the hinge base 210 and a connecting bar 222 formed symmetrically on both sides of the first intermediate body 221 . And, a first hinge pivoting portion 220 in which the first and

second hinge pins

224 and 225 are formed at the ends of the connecting bars 222 on both sides;

An insertion space 231 into which the first intermediate body 221 of the first hinge rotation part 220 is inserted is formed, and a fitting hole 232 that is coupled through the shaft of the hinge base part 210 is formed in the second middle A second hinge having a body 233, a connecting bar 227 obliquely symmetrically formed on both sides of the second intermediate body 233, and third and

fourth hinge pins

235 and 236 formed at the ends of the connecting bar 227 on both sides. The rotating part 230; is configured to include.

The first hinge rotating part 220 is coupled to the insertion space 231 of the second hinge rotating part 230 . That is, the first intermediate body 221 is fitted and coupled to the insertion space 231 between the second intermediate bodies 233 .

As such, the first hinge pivoting part 220 and the second hinge pivoting part 230 are coupled to form a first hinge pin 224 and a third hinge pin 235 on one side, and a second hinge pin 225 on the other side. ), a fourth hinge pin 236 is formed (see FIG. 5 ).

5 and 6, the first bracket 110 is formed integrally with a rectangular vertical plate 112 and the vertical plate 112, a long hole 116 is formed and a protruding horizontal plate 114. The top and bottom are symmetrically formed.

A fitting hole 118 is formed in the horizontal plate 114 so that the third hinge pin 235 of the second hinge rotating part 230 is coupled in addition to the long hole 116 .

The first hinge pin 224 of the first hinge rotating part 220 is coupled to the long hole 116 .

The second bracket 120 is formed integrally with a rectangular vertical plate 122 and the vertical plate 122, a long hole 126 is formed, and a protruding horizontal plate 124 is formed symmetrically on the top and bottom. .

A long hole 126 and a fitting hole 128 are formed in the horizontal plate 124, and the fitting hole 128 is coupled to the second hinge pin 225 of the first hinge rotating part 220, and the long hole ( The fourth hinge pin 236 of the second hinge rotating part 230 is coupled to the 126 .

Meanwhile, as shown in FIGS. 1 to 3, 9 and 10, the first attachment plate B11 or the second attachment plate B22 is respectively formed, and the first attachment plate B11 or the second attachment plate (B22) when folded so as to be in a parallel state, a stopper portion 200 to be fixed in the folded state; includes.

The stopper part 200 is coupled to the first attachment plate (B11) or the second attachment plate (B22) and protrudes through the through holes on both sides of the housing 250 having holes symmetrically formed on both sides, and the housing 250 is closed. It is composed of a spherical protrusion 240 coupled to or separated from the stopper hole 132 formed in the diaphragm 130 of the member 100, and a spring 260 providing a force to protrude the spherical protrusion 240, the spring ( 260) is inserted therein, and the spherical protrusion 240 is coupled such that a portion thereof protrudes through a through hole formed in the wall surface of the housing 250 .

Therefore, as shown in FIG. 1 or FIG. 3, when the hinge unit part H is folded, when the first attachment plate B11 and the second attachment plate B22 are arranged in parallel, the spherical projection 240 is a stopper hole. By being coupled to (132), a temporary fixing force can be exerted.

Therefore, the first body (B1) and the second body (B2) coupled to the first attachment plate (B11) or the second attachment plate (B22) can be maintained in close contact with each other, so that an unexpected closing can be prevented. have.

Hereinafter, the operation of the present embodiment will be described.

When the first body (B1) and the second body (B2) are rotated oppositely to both sides and unfolded, the spherical protrusion 240 of the stopper part 200 is pressed and drawn in, so that it is separated from the stopper hole 132 and a spring 260. is compressed while the first and second attachment plates B11 and B22 are rotated, respectively.

Accordingly, the first and

second brackets

110 and 120 attached to the first and second attachment plates B11 and B22 are rotated to both sides, and the first hinge pin 224 is moved along the long hole 116 of the first bracket 110 . While moving, the first hinge rotating part 220 is rotated to one side.

Accompanying this, the second hinge rotating part 230 is rotated to the other side while the fourth hinge pin 236 moves along the long hole 116 of the second bracket 120 .

Accordingly, the first hinge rotating part 220 and the second hinge rotating part 230 constituting the hinge unit part H are rotated equiangularly at opposite angles to the first body B1 and the second body B2. The rotation is made stably and rotated at the same angle to guide so that an even folding operation can be achieved.

Although described with reference to the preferred embodiment, it will be readily recognized by those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the invention, and all such changes and modifications fall within the scope of the appended claims. is self-evident

[Explanation of code]

100: finishing member 130: diaphragm

110: first bracket 120: second bracket

210: hinge base 220: first hinge rotating part

230: second hinge rotating part 200: stopper part

250: housing 240: spherical projection

260: spring

The technology of the present specification is a foldable hinge device, which can be used for industrial purposes.

Claims

A display panel is attached, and the first body and the second body disposed on both sides are connected, and the first body and the second body are rotated at the same time to fold or unfold,

a finishing member disposed on both sides of the first body and the second body and having a plurality of diaphragms formed therein;

a hinge unit attached to the inside of the closing member and operated by folding and connected to the first body and the second body;

a first bracket connected to one side of the hinge unit and rotated;

a second bracket connected to the other side of the hinge unit and rotated in a direction opposite to the first bracket;

a first attachment plate attached to the first bracket and attached to the first body;

A second attachment plate attached to the second bracket and attached to the second body;

The hinge unit part,

a hinge base part attached to the inside of the closing member and comprising an upper body and a lower body, and a shaft connecting between the upper body and the lower body;

A first intermediate body having a fitting hole through-coupled to the shaft of the hinge base portion, a connecting bar inclined and symmetrically formed on both sides of the first intermediate body, and a first hinge pin and a second hinge pin at the ends of both connecting bars, respectively. The formed first hinge rotation unit;

An insertion space is formed into which the first intermediate body of the first hinge pivoting part is inserted, a second intermediate body having fitting holes for penetratingly coupled to the shaft of the hinge base part, and the second intermediate body are formed obliquely and symmetrically on both sides of the second intermediate body It includes a connecting bar, and a second hinge pivoting portion having a third hinge pin and a fourth hinge pin formed at the ends of the connecting bars on both sides, respectively;

The first bracket is coupled to a third hinge pin of the second hinge rotating part, and a long hole to which the first hinge pin of the first hinge rotating part is coupled is formed and rotated;

The second bracket is coupled to the second hinge pin of the first hinge rotating part, and a long hole to which the fourth hinge pin of the second hinge rotating part is coupled is formed and rotated,

A stopper portion formed on the first or second attachment plate, respectively, and fixed in a folded state when the first attachment plate or the second attachment plate is folded to be in a parallel state;

The stopper part

a housing coupled to the first attachment plate or the second attachment plate and having through holes symmetrically formed on both sides thereof;

a spherical projection protruding through the through hole of the housing and coupled to or separated from the stopper hole formed in the diaphragm of the finishing member;

Consists of; a spring that provides a force to protrude the spherical protrusion;

The foldable hinge device, characterized in that the spring is inserted therein, and the spherical protrusion is coupled such that a part protrudes through a through hole formed in a wall surface of the housing.