KR102250197B1 - Foldable Hinge Device to Accommodate the bend of the Screen - Google Patents

Abstract

Disclosed is a foldable hinge device with an accommodation groove for bending of a screen. According to an embodiment of the present invention, the foldable hinge device comprises: a first body and a second body formed in a plate shape and arranged symmetrically; an image part attached to the first body and the second body to be folded or unfolded and forming a bent arc-shaped part when folded; and a hinge device coupled to connect the first body and the second body and connected to rotate within a range between an unfolded state lying on the same plane and a folded state overlapping each other. The hinge device includes a rotating part coupled to the first and second bodies disposed on both sides to be rotated and a connection part connected to and supporting the rotating part to maintain a gap. The connection part is formed with an accommodation part formed in a concave recess to correspond to the bent arc-shaped part of the image part. Accordingly, a fine arc-shaped bent part of a flexible image part can be inserted into the accommodation part when the foldable hinge is folded, so that two bodies are not lifted up, thereby providing an effect of providing beautiful appearance.

Description

Foldable Hinge Device to Accommodate the bend of the Screen}

Disclosed is a foldable hinge device having an accommodating groove of a screen bent portion, and more particularly, a first body and a second body of an electronic device having a foldable display are rotatably connected, and the first and second bodies It relates to a foldable hinge device having an accommodating groove of a screen bent portion for smoothly setting the rotation angle between the bodies.

Unless otherwise indicated herein, the content described in this section is not prior art to the claims of this application, and inclusion in this section is not admitted to be prior art.

In recent years, in order to meet the demands of consumers who prefer a large display screen, the image part is attached to both bodies that rotate with hinges, and when the two bodies are unfolded, the image part is unfolded to form a single large screen. Display equipment needs to be provided, and a hinge device in a form suitable for this needs to be developed.

Meanwhile, in such a foldable display, since the material of the image portion is ultra-thin glass or ultra-thin synthetic resin, such a material is not completely folded like paper when folded, and an arc-shaped bent portion having a predetermined radius exists.

When the arc-shaped bent portion, which is inevitably generated when the image portion is folded in this way, cannot be accommodated in the hinge portion, a problem occurs in that both bodies are lifted when folded.

Korean Patent Registration No. 10-0909713

Disclosed is a foldable hinge device having an accommodating groove on a screen bend that prevents two bodies from being lifted by arranging a hinge structure in the area where the flexible image part is folded, but allows the fine arc-shaped bent part of the flexible image part to be inserted inside when folding Its purpose is to provide.

The object of the embodiment is formed in a plate shape of the same shape, the first body and the second body arranged symmetrically; An image part which is attached to the first body and the second body to be folded or unfolded, and when folded, a bent arc-shaped part is formed; A hinge device that is coupled to connect the first body and the second body and allows the first body and the second body to be unfolded or folded; including, and in the connection part, a concave concave portion corresponding to the bent arc-shaped part of the image part It can be achieved by an additionally formed foldable hinge device.

According to an embodiment, the hinge device includes: a rotating unit coupled to each of the first and second bodies on both sides and driven to rotate; And a connecting portion connected to the rotating portion and supporting the gap to be maintained, wherein the connecting portion is formed with a receiving portion having a concave concave portion corresponding to the bent arc-shaped portion of the image portion.

According to the disclosed embodiment, a hinge structure may be disposed in an area where the flexible display is folded to correct a variable length deviation of the flexible display during folding and unfolding, and a fine arc-shaped bent portion of the flexible image portion may be inserted inside during folding. So that the two bodies are not lifted, there is an effect that the appearance can be improved.

1 is an exploded perspective view of an unfolded foldable display device according to an embodiment;
2 is a perspective view of an expanded state of a'hinge device' in the foldable display device according to the embodiment;
3 is a partially enlarged perspective view of FIG. 3;
4 is an exploded perspective view of FIG. 3,
5 is a rear perspective view showing an image unit and a hinge device in an unfolded state of the foldable display device according to the embodiment;
6 is a front view of FIG. 5,
7 is a perspective view showing an image portion and a hinge device when the foldable display device according to the embodiment is folded;
8 is a front view of FIG. 7.

Hereinafter, preferred embodiments will be described in detail based on the accompanying drawings.

The embodiments to be described below are intended to be described in detail enough to allow those of ordinary skill in the art to carry out the invention easily, thereby limiting the technical spirit and scope of the present invention. I don't mean it.

In addition, the size or shape of the constituent elements shown in the drawings may be exaggerated for clarity and convenience of description, and terms specially defined in consideration of the configuration and operation of the present invention vary according to the intention or custom of users and operators. It should be noted that, and definitions for these terms should be made based on the contents throughout the present specification.

In the accompanying drawings, FIG. 1 is an exploded perspective view of an expanded state of a foldable display device according to an embodiment, FIG. 2 is a perspective view of an expanded state of a'hinge device' in the foldable display device according to the embodiment, and FIG. A partially enlarged perspective view in FIG. 3, FIG. 4 is an exploded perspective view of FIG. 3, FIG. 5 is a rear perspective view showing an image unit and a hinge device when the foldable display device according to the embodiment is unfolded, and FIG. 6 is the above diagram. FIG. 5 is a front view, FIG. 7 is a perspective view showing an image portion and a hinge device when the foldable display device according to the embodiment is folded, and FIG. 8 is a front view of FIG. 7.

A foldable display device according to an embodiment includes: a first body P1 and a second body P2 formed in a plate shape having the same shape and arranged symmetrically; An image portion P3 that is attached to the first body P1 and the second body P2 to be folded or unfolded; It is coupled to connect the first body (P1) and the second body (P2), the hinge device (A) to be folded and folded with the unfolded state lying on the same plane; comprises a.

The hinge device (A) includes a rotating portion (R) coupled to each of the first and second bodies (P1, P2) on both sides and driven to rotate; It is configured to include a; connecting portion 100 connected to the rotation portion (R) to support so that the gap is maintained.

In the connection part 100, a concave accommodation part 120 is formed to correspond to the bent arc part P3-2 of the image part P3.

The accommodating part 120 is formed to be concave in a shape selected from a semicircle, a square, and a triangle.

The rotating part R includes a first bracket 2a coupled to the first body P1 and a second bracket 2b coupled to the second body P2; First and second main shafts 4a and 4b disposed in parallel and coupled through one end of each of the first and second brackets 2a and 2b; Including a rotation guide unit 6 that is fitted to the outer surfaces of the first and second main shafts 4a and 4b, and guides the linear motion when the first and second main shafts 4a and 4b rotate. It is composed.

In addition, first and second link connectors 81 and 82 that are fitted to the outer surfaces of the first and second main shafts 4a and 4b and connected to the rotation induction part 6, and the first and second link connectors 81, 82), the first and second links 83a and 83b hinged to each other, and the first and second links 83a and 83b hingedly coupled to the first and second bodies P1 and P2, respectively. It includes; a moving part 8 consisting of two connecting plates 84 and 85.

Therefore, when the first and second bodies P1 and P2 are folded, the first and second bodies P1 and P2 are overlapped with each other), and the first and second connecting plates 84 and 85 can be brought close to each other. In addition, the first and second link connectors 81 and 82 may be moved to each other while moving along the first and second main axes 4a and 4b.

Each of the first body P1 and the second body P2 is made of a rectangular plate material having the same shape and size, and has an area corresponding to half the area of the image portion P3.

The first body P1 and the second body P2 have slide grooves P10 and P20 to which the first and second brackets 2a and 2b are slidably coupled, respectively.

Preferably, slide protrusions P13 and P23 are formed in the slide grooves P10 and P20, and the rail grooves 20a and 20b so that the slide protrusions P13 and P23 are inserted into each of the first and second brackets 2a and 2b. ) Is formed.

In each of the first and second brackets 2a and 2b, bosses 21a and 21b having a through hole are formed on one side, and rail grooves 20a and 20b having a predetermined length are formed on the other side.

As shown in Fig. 4, each of the first and second main shafts 4a and 4b is in the shape of a rod having the same length and diameter, and is preferably the same length as the long sides of the first and second bodies P1 and P2. The first and second brackets 2a and 2b are pierced through the bosses 21a and 21b formed at one end of each of the first and second brackets 2a and 2b, and are protruded from the outer circumferential surfaces of the first and second main shafts 4a and 4b. Two shaft pins 41a and 41b are formed, and the first and second main shafts 4a and 4b are arranged in parallel.

Referring to FIG. 4, the rotation induction part 6 is fitted to the outer surfaces of the first and second main shafts 4a and 4b, respectively, and the first and second pipe bodies 61 and 62 are provided with guide grooves 63 formed in the diagonal direction. ), a connecting rod 64 connected across one end of the first and second pipes 61 and 62, and a bracket having a fastening hole 650 for connecting the intermediate part of the first and second pipes 61 and 62 It is comprised of (65).

In addition, as shown in FIG. 4, the connection part 100 is formed on both sides of the contact part 160 overlappingly coupled to the bracket 65 of the rotation guide part 6 and the contact part 160. The two main shafts (4a, 4b) include both side rings 170 to be coupled through, respectively, and the receiving portions 120 concavely recessed are formed on the upper surface of the both side rings 170 and the contact portion 160.

The accommodating part 120 is formed to be concave in a shape selected from a semicircle, a square, and a triangle.

In addition, the receiving portion 60 is formed concave on the upper surface of the connecting rod 64 of the rotation induction portion 6.

First and second shaft pins 41a and 41b are respectively protruding from the first and second main shafts 4a and 4b.

Each of the first and second axis pins 41a and 41b of the first and second main shafts 4a and 4b are coupled to the guide grooves 63 of the first and second pipes 61 and 62, respectively. It guides the rotation of the shafts 4a and 4b.

In the guide groove 63, two guide grooves 63 are formed in a diagonal direction for each of the first and second pipe bodies 61 and 62, but the two guide grooves 63 are formed in opposite directions to be approximately'X'. It is arranged in a ruler shape.

The first and second shaft pins 41a and 41b are inserted into the two guide grooves 63, respectively, so that when the first and second main shafts 4a and 4b rotate, the first and second shaft pins 41a and 41b become guide grooves. It moves along the slope of (63).

In this way, the first and second shaft pins 41a and 41b move along the guide groove 63 to accurately guide the rotational operation of the first and second main shafts 4a and 4b. 2 It is guided to move linearly on the main shaft (4a, 4b).

When the rotation guide unit 6 moves in a straight line, the moving unit 8 hinged to the link 83 rotates at a horizontal, vertical or inclined angle within a 90° angle due to the inclination angle of the guide groove 63. As a result, the first and second brackets 2a and 2b may be unfolded or folded or obliquely unfolded.

The moving part (8) is fitted to the outer surface of the first main shaft (4a) and is fitted to the first link connector (81) connected to the rotation induction part (6) and the outer surface of the second main shaft (4b) The second link connector 82 to be coupled, the first and second links 83a and 83b hinged to the first and second link connectors 81 and 82, respectively, and the first and second links 83a and 83b. It is formed and is composed of first and second connecting plates 84 and 85 attached to the first body P1.

The first and second connecting plates 84 and 85 are coupled to the first and second bodies P1 and P2, respectively, and the first and second connecting plates 84 and 85 are respectively on both sides of the first and second links ( 83a, 83b) are connected, and the link 83 is hinge-connected with the first and second link connectors 81 and 82 integrally coupled with the rotation induction part 6, so that the first and second links 83a and 83b on both sides are connected. While rotating, the first and second link connectors 81 and 82 are connected to each other or are separated from each other.

The close operation between the first and second link connectors 81 and 82 on both sides is implemented when the first and second bodies P1 and P2 are folded as shown in FIG. 6.

On the contrary, the spaced operation between the first and second link connectors 81 and 82 is implemented when the first and second bodies P1 and P2 are in an unfolded state, as shown in FIGS. 5 and 6.

The first and second brackets 2a and 2b have first and second main shafts 4a and 4b coupled to one end, respectively.

7 and 8, when the first and second bodies P1 and P2 are folded, the first and second connecting plates 84 and 85 are brought close and the first and second link connectors 81 and 82 Are moved along the first and second main axes 4a and 4b, respectively, and are close to each other.

The first and second shaft pins 41a and 41b are fitted to the first and second pipes 61 and 62 of the rotation induction part 6, respectively.

Meanwhile, as shown in FIG. 4, first and second springs 52a and 52b are respectively coupled to the first and second main shafts 4a and 4b. That is, the first and second springs 52a and 52b are respectively coupled to the first and second main shafts 4a and 4b connected through the support 24, and the first and second brackets 2a on one side of the support 24 ,2b) is coupled, and the first and second springs 52a and 52b are coupled to the other side.

Preferably, the support 24 has a receiving portion 240 formed thereon. Accordingly, an arc-shaped portion P3-2 formed when the image portion is folded may be inserted into the receiving portion 240.

The first and second springs 52a and 52b have one end in close contact with the flange 25, and the other end in close contact with the first support plate 53 of the gear connection 5, thereby Since the coupling force can be increased, a temporary fixing force can be exerted when adjusting the angle.

The gear connection part 5 may maintain the rotation angles of the first main shaft 4a and the second main shaft 4b so that the rotation angles of the first main shaft 4a and the second main shaft 4b are the same.

The gear connection 5 includes a first support plate 53 supported by the first and second springs 52a and 52b and coupled to the first and second main shafts 4a and 4b, and the first support plate 53 The first and second main shafts (4a, 4b) are interposed between the second support plate (56) coupled to the first and second main shafts (4a, 4b) and the first and second support plates (53, 56), which are coupled in parallel. ), and the first and second gears 54a and 54b respectively coupled to each other, and a plurality of interlocking gears 55 that are toothly coupled to the first and second gears 54a and 54b.

The first and second gears 54a and 54b are pinion gears having the same number of teeth.

The plurality of interlocking gears 55 are pinion gears having a smaller number of teeth than the first and second gears 54a and 54b, and are provided in an even number so that the rotational driving of the first and second gears 54a and 54b are opposite to each other. It becomes possible to change direction so that it can be executed.

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

[Expand operation]

This will be described with reference to FIGS. 5 and 6. Fig. 5 is a perspective view showing the rear surface of the hinge device A since the image unit is located at the bottom.

5 and 6, when the first and second bodies P1 and P2 are stretched at intervals of 180°, the first and second bodies P1 and P2 are separated from the slide grooves P10 and P20. The first and second brackets 2a and 2b move while sliding in the combined state, and the first and second brackets 2a and 2b rotate in opposite directions and become horizontal.

In addition, the first and second main shafts 4a and 4b to which the first and second brackets 2a and 2b are coupled are rotated together,

The first and second shaft pins 41a and 41b move within the guide groove 63 of the first and second pipes 61 and 62 and are approximately located at the ends of the guide groove 63.

In addition, the gear connection part 5 may also be fixed in a state where the first and second gears 54a and 54b rotate and maintain a predetermined rotation angle (preferably 180°).

[Folded state]

7 and 8, when the first and second bodies P1 and P2 are rotated and folded at approximately 90° intervals, the first and second bodies P1 and P2 become slide grooves P10 and P20. ) And the first and second brackets 2a and 2b are moved while sliding in a coupled state, and the first and second brackets 2a and 2b are rotated to be in opposite directions, that is, almost vertical.

The first and second main shafts 4a and 4b to which the first and second brackets 2a and 2b are coupled are rotated together, and the first and second shaft pins 41a and 41b are the first and second pipes 61, 62), while moving within the guide groove 63, it is placed approximately in the middle of the guide groove 63.

In addition, the gear connecting portion 5 may also be fixed in a state where the first and second gears 54a and 54b rotate and maintain a predetermined rotation angle (preferably 90°).

Since the image portion P3 forms an arc-shaped portion P3-2 having a small radius when the middle portion is folded, the arc-shaped portion P3-2 is The first and second bodies P1 and P2 may be in close contact with each other because they may be simultaneously inserted into the receiving part 60 and the receiving part 240 of the support 24 on the upper surface.

Although it has been described in connection with the preferred embodiment, it will be readily recognized by those skilled in the art that various modifications and variations are possible without departing from the gist and scope of the invention, and all such changes and modifications fall within the scope of the appended claims. Is self-explanatory.

P1: first body P2: second body
P3: image part A: hinge device
2a: 1st bracket, 2b: 2nd bracket
4a: 1st main axis 4b: 2nd main axis
6: rotation induction part 8: moving part
41a, 41b: pin 52a: first, second spring
52b: second spring 61: first and second pipe bodies
62: second pipe body 63: guide groove
81: first link connector 82: second link connector
83a: first link 83b: second link
84: first connecting plate 85: second connecting plate
60, 120, 240: receiving part

Claims (8)

A first body (P1) and a second body (P2) formed in a plate shape and arranged symmetrically; An image part P3 that is attached to the first body P1 and the second body P2 to be folded or unfolded; A hinge device (A) coupled to connect the first body (P1) and the second body (P2) to open or fold the first body (P1) and the second body (P2); Including,
The hinge device (A),
Rotation drive at one end of each of the first bracket (2a) coupled to the first body (P1), the second bracket (2b) coupled to the second body (P2), and the first and second brackets (2a, 2b) The first and second main shafts (4a, 4b) and the first and second main shafts (4a, 4b), which are connected through each other and are arranged in parallel, are respectively fitted to the outer surfaces of the first and second main shafts (4a, 4b). A rotation unit (R) including a rotation guide unit 6 for guiding the linear motion to be induced during rotation of the unit;
Including; a connection part 100 connected to the rotation part R to support the gap to be maintained,
A receiving part 120 is formed in the connecting part 100 to accommodate the bent arc-shaped part P3-2 of the image part P3,
The rotation induction part 6 is fitted to the outer surfaces of the first and second main shafts 4a and 4b, respectively, and the first and second pipe bodies 61 and 62, wherein the guide groove 63 is formed in a diagonal direction, Including a connecting rod 64 connected across one end of the two pipes 61 and 62 and a bracket 65 connecting the intermediate portions of the first and second pipes 61 and 62 and having a fastening hole 650 A foldable hinge device, characterized in that.
The method of claim 1,
The connection part 100 is
A contact portion 160 coupled to the bracket 65 and a ring 170 formed on both sides of the contact portion 160 and through which the first and second main shafts 4a and 4b are respectively coupled,
Foldable hinge device, characterized in that the receiving portion 120 is formed on the upper surface of the ring 170 and the contact portion 160. delete delete The method of claim 1,
A foldable hinge device, characterized in that the receiving part 120 is formed on the upper surface of the connecting table 64 so that the arc-shaped part P3-2 formed when the image part is folded is inserted.
The method of claim 1,
And a gear connecting portion (5) for maintaining the rotation angles of the first and second main shafts (4a, 4b) to be equal to each other.
The method of claim 6,
The gear connection
First and second shaft pins (41a, 41b) fitted to the first and second pipe bodies (61, 62) of the rotation induction part (6), respectively, and the first and second shaft pins (41a, 41b) respectively 1,2 springs 52a and 52b;
The first support plate 53 supported by the first and second springs 52a and 52b and coupled to the first and second shaft pins 41a and 41b, and the first support plate 53 are coupled in parallel with the first, The first and second support plates 56 coupled to the biaxial pins 41a and 41b and interposed between the first and second support plates 53 and 56 and coupled to the first and second axis pins 41a and 41b, respectively. And two gears (54a, 54b) and a plurality of interlocking gears (55) toothedly coupled to the first and second gears (54a, 54b). The method of claim 7,
The first and second main shafts (4a, 4b) are coupled, the first and second springs (52a, 52b) are supported by a support (24); Including,
The support (24) is a foldable hinge device, characterized in that the receiving portion (240) is formed on the upper portion so that the arc-shaped portion (P3-2) formed when the image portion is folded is inserted.

Images