CN114761907A - Folding hinge device - Google Patents
Folding hinge device Download PDFInfo
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- CN114761907A CN114761907A CN202180006164.3A CN202180006164A CN114761907A CN 114761907 A CN114761907 A CN 114761907A CN 202180006164 A CN202180006164 A CN 202180006164A CN 114761907 A CN114761907 A CN 114761907A
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- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
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- 238000004519 manufacturing process Methods 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
Abstract
In order to solve the above problems, the present invention provides a folding hinge device which can realize stable opening and closing by simultaneously rotating both ends of a portable terminal machine at a uniform angle. The folding hinge device of the present invention comprises: a hinge frame 100; a first hinge arm having one end rotatably mounted to one end of the hinge bracket 100 and the other end connected to one lateral end of the display screen of the portable terminal; a second hinge arm having one end rotatably mounted to the other end of the hinge bracket 100 and the other end connected to the other lateral end of the display screen of the portable terminal; and the link sliding block slides when the first hinge arm and the second hinge arm rotate through connection, so that the first hinge arm and the second hinge arm rotate at the same rotation angle.
Description
Technical Field
The present invention relates to a foldable hinge device, and more particularly, to a foldable hinge device in which a flexible display screen is mounted on a portable terminal, which is long and can be folded in a lateral direction.
Background
In general, mobile terminals such as mobile phones, PDAs, notebook computers, and DMB phones are often used to wirelessly utilize services such as communication and broadcasting during movement in non-stationary places.
The portable terminal is one of indispensable accessories for enjoying life convenience brought by the information age, and particularly, the popularization range of the mobile phone is extremely wide, and the portable terminal relates to primary schools, junior middle school students, high school students, old people and the like.
As described above, as the demand and user level of portable terminals have increased dramatically in recent years, consumers using the same wish to continue to use products carrying new designs or functions.
In the first place, a main body having a dial pad and a cover having a display panel are combined to be openable and closable with each other, and the main body is classified into a foldable type, a sliding type, and a swing type according to the opening and closing structure of the cover.
Currently, with the development of touch screen technology, bar-type smartphone-like portable terminals that do not require a dial pad are becoming the mainstream. The bar-shaped portable terminal is provided with a display screen having a size corresponding to the entire area of the front surface.
In addition, with the development of flexible display technology, portable terminals equipped with a foldable display are expected to become the mainstream of the second generation.
The portable terminal using the flexible display screen may provide: a display screen equal to the size of the conventional portable terminal in horizontal and vertical directions when carried and larger than the conventional product when unfolded.
However, the length of the flexible display screen changes when it is folded, and the hinge device applied to the conventional foldable portable terminal cannot be used.
Therefore, there is an urgent need to develop a new folding hinge device that allows both ends of the flexible display screen to be uniformly folded at the same angle and can cope with length variation.
[ Prior Art documents ]
[ patent literature ] A
Korean Korea patent No. 10-2019-0124110
Disclosure of Invention
Problems to be solved by the invention
In order to solve the above drawbacks, the present invention provides a foldable hinge device, comprising: the two ends of the portable terminal machine which is extended transversely can be rotated at the same angle to realize stable opening and closing, and the holding posture of the hinge arm is strengthened to improve the rotating force.
Means for solving the problems
In order to achieve the above object of the present invention, a folding hinge device of the present invention includes:
a hinge bracket having a long length toward a length direction;
a first hinge arm having one end facing a direction crossing the longitudinal direction at right angles, rotatably mounted to one end of the hinge frame, and the other end connected to one end of the portable terminal display screen in the transverse direction;
a second hinge arm having one end facing a direction crossing the longitudinal direction at right angles, rotatably mounted to the other end of the hinge frame, and the other end connected to the other transverse end of the display screen of the portable terminal;
A link slider provided at the hinge bracket to be linearly slidably movable toward the length direction and transmitting a rotation force of the first hinge arm and the second hinge arm to each other so that the first hinge arm and the second hinge arm are simultaneously rotated at the same rotation angle by being connected,
the hinge bracket includes:
a first rotating part inserted into the first hinge arm and rotating;
a second rotating part inserted into the second hinge arm and rotating;
a first rotation protrusion is formed at an inner side of the first rotation part in the longitudinal direction, a first rotation groove is formed at a side of the first hinge arm in the longitudinal direction, the first rotation groove is inserted into the first rotation protrusion and has a semi-arc shape,
a second rotation protrusion is formed at an inner side of the second rotation portion toward the longitudinal direction, and a first rotation groove is formed at a side portion of the second hinge arm toward the longitudinal direction, the first rotation groove being inserted into the second rotation protrusion and having a semi-arc shape.
Further comprising:
a first holding unit that elastically adds a held posture to the first hinge arm when the first hinge arm rotates;
a second holding unit that elastically adds a held posture to the second hinge arm when the second hinge arm rotates,
The first holding means is provided on both sides of the first rotating portion, and the second holding means is provided on both sides of the second rotating portion.
Two side parts of the first hinge arm are convexly provided with a first rotating cam part in a bending way,
the first holding unit includes:
a holding cam, one end of which is curved and protruded toward the first rotating cam part, and which is connected to the first rotating cam part to perform a left and right sliding movement when the first hinge arm rotates;
a guide shaft assembled to the hinge bracket to guide the left and right movement of the holding cam;
a spring elastically supporting the holding cam toward the first rotating cam portion.
The first hinge arm forms a first link groove into which the link slider is inserted,
the second hinge arm forms a second link groove into which the link slider is inserted,
the first link groove and the second link groove are long in a diagonal direction and are bilaterally symmetrical, so that the first hinge arm and the second hinge arm rotate symmetrically with each other.
One end of the link slider is provided with a first link pillar that slides along the first link groove when the first hinge arm rotates.
The first holding unit includes:
a first holding shaft fitted to a side of the hinge frame,
and a first holding arm having one end rotatably fitted to the first holding shaft and the other end connected to the first hinge arm so as to rotate about the first holding shaft when the first hinge arm rotates.
The other end of the first hinge arm is provided with a first connecting groove in the shape of a long groove,
the other end of the first holding arm includes a first connecting shaft that is inserted into the first connecting groove and slides.
The first holding unit includes:
a guide rod, one end of which is fixed on the side part of the hinge frame along with the first retaining arm;
a slider which can slide along with the guide rod;
an elastic member elastically supporting the slider toward the first holding arm.
One end of the first holding arm is formed with a first holding cam portion in a curved manner along the periphery of the first holding shaft,
one end of the guide rod is formed with a first guide cam portion that is curved along the circumference of the first holding shaft and is connected to the first holding cam portion.
The end of the guide rod is formed with a fixing part for supporting the elastic member.
Comprising cam means for converting a linear movement of said link slider into a rotational movement of said first hinge arm and said second hinge arm.
In the above-mentioned cam means, the cam means,
a guide portion for converting a linear motion of the link slider into a rotational motion of the first hinge arm and the second hinge arm is formed on the link slider or on either one of the first hinge arm and the second hinge arm,
the link slider or the other of the first hinge arm and the second hinge arm is formed with a sliding portion that moves along with the guide portion.
Effects of the invention
As described above, the folding hinge device of the present invention has the following technical effects.
When the connection is realized, the first hinge arm 200 and the second hinge arm 300 are rotated at the same angle by the left and right movement of the link slider 400, thereby solving the problems of reduction in production efficiency, damage and the like in the connection structure using the gear teeth in the conventional art, softening the rotation, and improving the durability.
The side surfaces of the first link groove 210 are inclined in opposite directions with respect to the center line, thereby minimizing friction and softening rotation when the side surfaces of the first link groove 210 contact the first link supporting pole 410 of the link slider 400.
When the first linking support 410 slides along with the first linking groove 210, the linking roller rotates, thereby reducing friction with the side surface of the first linking groove 210, making the rotation soft, and reducing vibration and noise.
Further, the first holding means 500 is provided on both sides of the first hinge arm 200, and the second holding means 600 is provided on both sides of the second hinge arm 300, so that the posture is maintained strongly and the rotational force of the hinge is increased.
Drawings
Fig. 1 is a perspective view of an unfolded state of a folding hinge device according to embodiment 1 of the present invention.
Fig. 2 is an exploded perspective view of the folding hinge device according to embodiment 1 of the present invention.
Fig. 3 is a plan view of the folding hinge apparatus according to embodiment 1 of the present invention in an unfolded state.
Fig. 4 is a bottom view of the foldable hinge device according to embodiment 1 of the present invention in an unfolded state.
Fig. 5 is a sectional view showing an unfolded state of the folding hinge device according to embodiment 1 of the present invention.
Fig. 6 is a perspective view of the folding hinge device according to embodiment 1 of the present invention.
Fig. 7 is a folded bottom view of the folding hinge device according to embodiment 1 of the present invention.
Fig. 8 is a cross-sectional view of the folding hinge device according to embodiment 1 of the present invention in a folded state.
Fig. 9 is a perspective view of the folding hinge apparatus according to embodiment 2 of the present invention in an unfolded state.
Fig. 10 is an exploded perspective view of the folding hinge device according to embodiment 2 of the present invention.
Fig. 11 is another oblique view of the first hinge arm of the folding hinge device according to embodiment 2 of the present invention.
Fig. 12 is a sectional view showing an unfolded state of the folding hinge device according to embodiment 2 of the present invention.
Fig. 13 is a perspective view of the folding hinge device according to embodiment 2 of the present invention in a folded state.
Fig. 14 is a cross-sectional view of the folding hinge device according to embodiment 2 of the present invention in a folded state.
Detailed Description
In describing the invention in detail below, specific embodiment 1 in which the invention may be practiced will be illustrated with reference to the accompanying drawings. These examples 1 are described in detail so that those skilled in the art can sufficiently practice the present invention. It should be understood that the various embodiments 1 of the present invention, although different, are not necessarily mutually exclusive. For example, the specific shape, structure, and characteristics described in one embodiment 1 may be implemented as another embodiment 1 without departing from the spirit and scope of the present invention. It is also to be understood that the location or arrangement of individual elements within each of the illustrated embodiments 1 may be modified without departing from the spirit and scope of the invention. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is defined only by the appended claims, along with the full scope of equivalents to which such claims are entitled. In the drawings, like numerals refer to the same or similar functionality throughout the several views.
Hereinafter, preferred embodiment 1 of the present invention will be described in more detail with reference to the drawings.
Example 1
As shown in fig. 1 to 7, the folding hinge device according to embodiment 1 of the present invention is composed of a hinge bracket 100, a first hinge arm 200, a second hinge arm 300, a link slider 400, a first holding unit 500, and a second holding unit 600.
The hinge bracket 100 is provided at the bottom of the center of the display screen of the portable terminal, and has a flat hexahedral shape.
The display screen is made of flexible materials, transversely extends, and can be folded and unfolded.
Such the hinge bracket 100 is respectively equipped with the first hinge arm 200, the second hinge arm 300, the link slider 400, and the first holding unit 500, which will be described below.
Specifically, the hinge bracket 100 is formed with: the first hinge part 110 to which the first hinge arm 200 is inserted and the second hinge part 120 to which the second hinge arm 300 is inserted.
The first hinge part 110 and the second hinge part 120 are spaced apart from each other in the left-right direction and are symmetrical in the diagonal direction.
First rotating protrusions 111 are formed at both inner side protrusions of the first hinge part 110, and second rotating protrusions 121 are formed at both inner side protrusions of the second hinge part 120.
The first and second rotating protrusions 111 and 121 protrude in an arc shape to guide the rotation of the first and second hinge arms 200 and 300, respectively.
In the hinge frame 100, first holding portions 130, in which the first holding units 500 are respectively disposed, are formed on both sides of the first hinge portion 110, and second holding portions 140, in which the second holding units 600 are respectively disposed, are formed on both sides of the second hinge portion 120.
The first hinge arm 200 is rotatably mounted to the first hinge part 110 and connected to one end of the display screen of the portable terminal.
Specifically, one end of the first hinge arm 200 is inserted into the first hinge portion 110, and has a semi-cylindrical shape, and the other end has a flat square plate shape for supporting one end of the display screen.
In the first hinge arm 200, a first link groove 210 into which the link slider 400 is inserted is formed on an outer circumferential surface of one end, and a first rotation groove 220 into which the first rotation protrusion 111 is inserted is formed on both side surfaces of one end.
The first link groove 210 is elongated in a diagonal direction, that is, the first link groove 210 is opened and has a diagonal shape inclined from the left side to the right side.
The first link groove 210 is inserted with the first link support 410 of the link slider 400, and when the first hinge arm 200 rotates, the link slider 400 moves left and right, and the second hinge arm 300, which will be described later, rotates together with the first hinge arm 200.
The side surface of the first link groove 210 is inclined toward the second hinge arm 300 at one end and inclined toward the opposite direction of the second hinge arm 300 at the other end with respect to the center line of the first link groove 210.
In this manner, the side surfaces of the first link groove 210 are inclined in opposite directions with respect to the center line, so that when the side surfaces of the first link groove 210 are brought into contact with the first link supporting pillar 410 of the link slider 400, friction is minimized, and rotation is softened.
First rotating cam portions 230 connected to the first holding unit 500 are formed on both side surfaces of one end of the first hinge arm 200. The first rotating cam part 230 is curved along the outer circumference of the first rotating groove 220, and the center part thereof is protruded toward the second hinge arm 300. Such a first rotating cam part 230 is connected to the first holding unit 500, and adds a fixing force to prevent any rotation when the first hinge arm 200 is unfolded or folded.
The second hinge arm 300 has the same shape as the first hinge arm 200, and is symmetrical to the first hinge arm 200 in a diagonal direction.
Specifically, one end of the second hinge arm 300 is rotatably mounted to the second hinge part 120, and the other end is connected to the other end of the display screen of the portable terminal.
Further, the second hinge arm 300 has one end in a semi-cylindrical shape and the other end in a flat square plate shape.
In the second hinge arm 300, a second link groove 310 into which the second link supporting rod 420 of the link slider 400 is inserted is formed on an outer circumferential surface of one end, and a second pivoting groove 320 into which the second pivoting protrusion 121 is inserted is formed on both side surfaces of one end.
The second link groove 310 is formed in an elongated hole shape in a diagonal direction, and is bilaterally symmetrical to the second link groove 310.
The second link groove 310 rotates the second hinge arm 300 at the same angle as the first hinge arm 200 by the left and right movement of the link slider 400. However, since the second link groove 310 is symmetrical to the first link groove 210, the rotation direction is opposite.
A second rotating cam portion 330 connected to the first holding unit 500 is formed at both side surfaces of one end of the second hinge arm 300. The second rotating cam part 330 is curved along the outer circumference of the first rotating groove 220 with a center portion protruding toward the first hinge arm 200. Such a second rotation cam part 330 is connected to the first holding unit 500, and adds a fixing force to prevent any rotation when the second hinge arm 300 is unfolded or folded.
In addition, when the first hinge arm 200 and the second hinge arm 300 rotate, the link slider 400 slides in a left and right direction, and the first hinge arm 200 is connected to the second hinge arm 300 so as to rotate simultaneously at the same rotation angle.
Specifically, the link slider 400 is inserted to the lower portion of the hinge bracket 100 to be movable left and right, and includes a first link support 410 inserted into the first link groove 210 at one end and a second link support 420 inserted into the second link groove 310 at the other end.
Specifically, the first link strut 410 is composed of a first strut shaft 411 and a first strut roller 412.
The first pillar shaft 411 has a cylindrical shape, one end of which is fixedly mounted to one end of the link slider 400, and the other end of which protrudes toward the first hinge arm 200.
The first column roller 412 has a larger diameter than the first column shaft 411, is cylindrical, and is rotatably mounted to the other end of the first column shaft 411.
Such first pillar runner 412 is inserted into the first link groove 210, is connected to a side surface of the first link groove 210, and rotates while sliding along the first link groove 210 when the first hinge arm 200 rotates.
Thus, when the first linking support 410 slides along the first linking groove 210, the linking roller rotates, thereby reducing friction with the side surface of the first linking groove 210, making the rotation soft, and reducing vibration and noise.
The second linking post 420 is symmetrical to the first linking post 410 in a diagonal direction, and has the same structure as the first linking post 410 except for the insertion of the second linking groove 310, and thus, a detailed description thereof will be omitted.
In addition, the first holding units 500 are respectively assembled to the first holding portions 130 of the hinge bracket 100, elastically press the first hinge arms 200, and add a holding posture.
The first holding unit 500 is composed of a holding cam 510, a guide shaft 520, and a spring 530.
The holding cam 510 has a cylindrical shape, and has a holding cam surface 511 with one end curved and convex toward the first rotating cam part 230 and a guide groove 512 formed at the other end for inserting the guide shaft 520.
The guide shaft 520 has a circular shaft shape, one end of which is fixedly mounted to the hinge bracket 100 and the other end of which is inserted into the guide groove 512.
The spring 530 is disposed between the holding cam 510 and the hinge bracket 100, and elastically supports the holding cam 510 toward the first hinge arm 200, while enclosing the guide shaft 520 by the compression coil spring 530.
The first holding unit 500 elastically presses the first rotating cam part 230 of the first hinge arm 200 to prevent the first hinge arm 200 from being rotated arbitrarily, and is automatically rotated to a minimum bending point when the maximum bending point of the first rotating cam part 230 passes the maximum bending point of the holding cam 510 when the first hinge arm 200 is rotated.
The second holding units 600 are respectively mounted to the second holding parts 140 of the hinge brackets 100, and have the same configuration as the first holding unit 500 except that they are connected to the second hinge arms 300 in a posture for adding holding to the second hinge arms 300, and thus, a detailed description thereof will be omitted.
The folding hinge apparatus according to embodiment 1 of the present invention is configured as described above, and when the first hinge arm 200 is folded, the second hinge arm 300 and the first hinge arm 200 simultaneously rotate in opposite directions at the same angle as the link slider 400 slides left and right.
That is, when the first hinge arm 200 rotates, the link slider 400 moves to the left side as the first link post 410 moves to the left side along the first link groove 210, and the second hinge arm 300 rotates by the interlocking of the second link post 420 and the second link groove 310.
Thus, when the connection is realized, the first hinge arm 200 and the second hinge arm 300 are rotated at the same angle by the left and right movement of the link slider 400, so that the problems of reduction in production efficiency, damage and the like in a connection structure using gear teeth in the conventional art are solved, the rotation is softened, and the durability is improved.
The first holding units 500 are respectively provided at both sides of the first hinge arm 200, and the second holding units 600 are respectively provided at both sides of the second hinge arm 300, thereby enhancing the posture holding and the hinge rotation force.
Example 2
As shown in fig. 9 to 14, the folding hinge device according to embodiment 2 of the present invention is composed of a hinge bracket 100, a first hinge arm 200, a second hinge arm 300, a link slider 400, a first holding unit 500, and a second holding unit 600.
The hinge bracket 100 is provided at the bottom of the center of the display screen of the portable terminal, and has a flat hexahedral shape.
The display screen is made of flexible materials, transversely extends, and can be folded and unfolded.
The hinge frame 100 is respectively provided with the first hinge arm 200, the second hinge arm 300, and the link slider 400, which will be described below.
Specifically, the hinge frame 100 includes a first hinge part 110 to which the first hinge arm 200 is inserted and a second hinge part 120 to which the second hinge arm 300 is inserted.
The first hinge portion 110 and the second hinge portion 120 are spaced apart from each other in the left-right direction and are symmetrical in the diagonal direction.
First rotating protrusions 111 are formed at both inner side protrusions of the first hinge part 110, and second rotating protrusions 121 are formed at both inner side protrusions of the second hinge part 120.
The first and second rotating protrusions 111 and 121 protrude in an arc shape to guide the rotation of the first and second hinge arms 200 and 300, respectively.
The first hinge arm 200 is rotatably mounted to the first hinge part 110, and is connected to one end of the display screen of the portable terminal.
Specifically, one end of the first hinge arm 200 is inserted into the first hinge portion 110, and has a semi-cylindrical shape, and the other end thereof has a flat square plate shape and supports one end of the display screen.
In the first hinge arm 200, a first link groove 210 into which the link slider 400 is inserted is formed on an outer circumferential surface of one end, and a first pivot groove 220 into which the first pivot protrusion 111 is inserted is formed on both side surfaces of one end.
The first link groove 210 has a long hole shape in a diagonal direction, that is, the first link groove 210 is opened and has a diagonal shape inclined from the left side to the right side.
The first link groove 210 is inserted with the first link support 410 of the link slider 400, and when the first hinge arm 200 rotates, the link slider 400 moves left and right, and the second hinge arm 300, which will be described later, rotates together with the first hinge arm 200.
And, the side of the first link groove 210 is inclined toward the second hinge arm 300 at one end and toward the opposite direction of the second hinge arm 300 at the other end with respect to the center line of the first link groove 210.
In this manner, the side surfaces of the first link groove 210 are inclined in opposite directions with respect to the center line, thereby minimizing friction and softening rotation when the side surfaces of the first link groove 210 are brought into contact with the first link supporting pillars 410 of the link sliders 400.
And, a first coupling groove 240 is formed at the other end of the first hinge arm 200.
The first coupling groove 240 is a portion coupled to a first holding arm 560 of the first holding unit 500, which will be described later, and has an elongated hole shape, and 1 on each side.
The second hinge arm 300 has the same shape as the first hinge arm 200, and is symmetrical to the first hinge arm 200 in a diagonal direction.
Specifically, one end of the second hinge arm 300 is rotatably mounted to the second hinge part 120, and the other end is connected to the other end of the display screen of the portable terminal.
Further, the second hinge arm 300 has one end in a semi-cylindrical shape and the other end in a flat square plate shape.
In the second hinge arm 300, a second link groove 310 into which the second link supporting rod 420 of the link slider 400 is inserted is formed on an outer circumferential surface of one end, and a second pivoting groove 320 into which the second pivoting protrusion 121 is inserted is formed on both side surfaces of one end.
The second link groove 310 has a long hole shape in a diagonal direction, and is symmetrical to the second link groove 310 in the left-right direction.
The second link groove 310 rotates the second hinge arm 300 at the same angle as the first hinge arm 200 by the left and right movement of the link slider 400. However, since the second link groove 310 is symmetrical to the first link groove 210, the rotation direction is opposite.
And, the other end of the second hinge arm 300 is formed with a second coupling groove 340.
The second coupling groove 340 is a portion coupled to a second holding arm 570 of the first holding unit 500, which will be described later, and is formed as a long hole-shaped groove.
In addition, when the first hinge arm 200 and the second hinge arm 300 rotate, the link slider 400 slides in a left and right direction, and the first hinge arm 200 is connected to the second hinge arm 300 so as to rotate simultaneously at the same rotation angle.
Specifically, the link slider 400 is inserted to the lower portion of the hinge bracket 100 to be movable left and right, and includes a first link support 410 inserted into the first link groove 210 at one end and a second link support 420 inserted into the second link groove 310 at the other end.
Specifically, the first link column 410 is composed of a first column shaft 411 and a first column roller 412.
The first pillar shaft 411 has a cylindrical shape, one end of which is fixedly mounted to one end of the link slider 400, and the other end of which protrudes toward the first hinge arm 200.
The first column roller 412 has a larger diameter than the first column shaft 411, is cylindrical, and is rotatably mounted to the other end of the first column shaft 411.
Such first pillar runner 412 is inserted into the first link groove 210, is connected to a side surface of the first link groove 210, and rotates while sliding along the first link groove 210 when the first hinge arm 200 rotates.
Thus, when the first linking support 410 slides along the first linking groove 210, the linking roller rotates, thereby reducing friction with the side surface of the first linking groove 210, making the rotation soft, and reducing vibration and noise.
The second linking support 420 is symmetrical to the first linking support 410 in a diagonal direction, and the remaining structure except that the second linking groove 310 is inserted is the same as the first linking support 410, and thus, a detailed description thereof will be omitted herein.
In addition, when the first hinge arm 200 and the second hinge arm 300 rotate, the first holding unit 500 elastically adds a holding posture to the first hinge arm 200 and the second hinge arm 300, respectively, and is composed of a first holding shaft 551, a second holding shaft 552, a first holding arm 560, a second holding arm 570, a guide rod 580, a slider 590, and an elastic member 595.
The first and second holding shafts 551 and 552 are provided on one side of the hinge frame 100, are arranged in parallel at intervals in the width direction, and have one ends fixed to the hinge frame 100.
The first holding arm 560 has one end rotatably attached to the first holding shaft 551 and the other end connected to the first hinge arm, so that the first hinge arm rotates about the first holding shaft 551.
The other end of the first holding arm 560 is fixedly assembled with a first connection shaft 561 inserted into the first connection groove 240.
One end of the first connection shaft 561 is fixed to the first holding arm 560, and the other end thereof is inserted into the first connection groove 240, and slides along the first connection groove 240 when the first hinge arm 200 rotates.
Further, a first holding cam portion 562 is formed at one end of the first holding arm 560 so as to be bent along the periphery of the first holding shaft 551. The first holding cam portion 562 is connected to a first slider cam portion 591 of the slider 590 described below.
The second holding arm 570 has one end rotatably attached to the second holding shaft 552 and the other end connected to the second hinge arm 300, so that the second hinge arm 300 rotates about the second holding shaft 552.
Wherein, the other end of the second holding arm 570 is fixedly assembled with a second coupling shaft 571 inserted into the second coupling groove 340.
One end of the second connecting shaft 571 is fixed to the second holding arm 570, and the other end is inserted into the second connecting groove 340, and when the second hinge arm rotates, the second connecting shaft slides along the second connecting groove 340.
A second holding cam portion 572 is formed at one end of the second holding arm 570 so as to be bent along the periphery of the second holding shaft 552. The second retaining cam portion 572 is coupled to a second slider cam portion 592 of the slider 590, which is described below.
The guide bar 580 has a long bar shape on the left and right sides, is disposed between the first holding shaft 551 and the second holding shaft 552, and has one end fixed to a side portion of the hinge frame 100.
A fixing portion 581 for wrapping the first and second holding shafts 551 and 552 is formed at the other end of the guide bar 580, and the fixing portion 581 functions to support the elastic member 595 so as not to move.
When the first holding arm 560 rotates, the slider 590 presses the first holding arm 560 while moving along the guide rod 580.
Specifically, the slider 590 is wrapped around the guide rod 580, and a first slider cam portion 591 is formed to protrude at one end to face the first holding cam portion 562.
The first block cam portion 591 is curved along the periphery of the first holding shaft 551, like the first holding cam portion 562.
Also, a second slider cam portion 592 is formed to protrude from the other end of the slider 590 so as to face the second holding cam portion 572.
The second slider cam portion 592 is curved along the periphery of the second holding shaft 552, similarly to the second holding cam portion 572.
Such a slider 590 is connected to the elastic member 595 to be elastically supported toward the first holding arm 560.
The elastic member 595 is composed of a compression coil spring, and is respectively assembled to the first holding shaft 551 and the second holding shaft 552, and has one end connected to the slider 590 and the other end connected to the fixing portion 581 of the guide rod 580.
Such an elastic member 595 supports the slider 590 toward the first and second holding arms 560 and 570, and a first slider cam portion 591 and a second slider cam portion 592 supporting the slider 590 press the first and second holding cam portions 562 and 572, respectively.
The second holding unit is provided on the other side of the hinge frame 100, and is identical to the first holding unit 500 except that it is symmetrical to the first holding unit 500 in the left and right directions, and thus, a detailed description thereof will be omitted.
The present invention is not limited thereto, and those skilled in the art can implement modifications in various forms without departing from the spirit and scope of the appended claims, and therefore, it should be construed that such modifications fall within the scope of the present invention.
Claims (12)
1. A folding hinge device, characterized in that:
the method comprises the following steps:
a hinge frame having a long length toward a length direction;
a first hinge arm, one end of which faces to the direction crossing with the length direction at right angle, and is rotatablely assembled at one end of the hinge frame, and the other end is connected with one transverse end of the display screen of the portable terminal machine;
a second hinge arm, one end of which faces to the direction crossing with the length direction at right angle, and is rotatablely assembled at the other end of the hinge frame, and the other end is connected with the transverse other end of the display screen of the portable terminal machine;
a link slider provided at the hinge bracket to be linearly slidably movable toward the length direction and transmitting a rotation force of the first hinge arm and the second hinge arm to each other so that the first hinge arm and the second hinge arm are simultaneously rotated at the same rotation angle by being connected,
the hinge bracket includes:
a first rotating part inserted into the first hinge arm and rotating;
a second rotating part inserted into the second hinge arm and rotating;
a first rotation protrusion is formed at an inner side of the first rotation part in the longitudinal direction, a first rotation groove is formed at a side of the first hinge arm in the longitudinal direction, the first rotation groove is inserted into the first rotation protrusion and has a semi-arc shape,
A second rotation protrusion is formed at an inner side of the second rotation portion toward the longitudinal direction, and a first rotation groove is formed at a side portion of the second hinge arm toward the longitudinal direction, the first rotation groove being inserted into the second rotation protrusion and having a semi-arc shape.
2. The folding hinge assembly of claim 1, wherein:
further comprising:
a first holding unit that elastically adds a held posture to the first hinge arm when the first hinge arm rotates;
a second holding unit that elastically adds a held posture to the second hinge arm when the second hinge arm rotates,
the first holding units are provided on both sides of the first rotating portion, and the second holding units are provided on both sides of the second rotating portion.
3. The folding hinge device of claim 2, wherein:
two side parts of the first hinge arm are convexly provided with a first rotating cam part in a bending way,
the first holding unit includes:
a holding cam, one end of which is curved and protruded toward the first rotating cam part, and which is connected to the first rotating cam part to perform a left-right sliding movement when the first hinge arm rotates;
A guide shaft assembled to the hinge bracket to guide the left and right movement of the holding cam;
a spring elastically supporting the holding cam toward the first rotating cam portion.
4. The folding hinge assembly of claim 1, wherein:
the first hinge arm forms a first link slot into which the link slider is inserted,
the second hinge arm forms a second link slot into which the link slider is inserted,
the first and second link grooves are formed in a long hole shape toward a diagonal direction and are bilaterally symmetrical, so that the first and second hinge arms rotate symmetrically with each other.
5. The folding hinge assembly of claim 4, wherein: one end of the link slider is provided with a first link pillar that slides along the first link groove when the first hinge arm rotates.
6. The folding hinge device of claim 2, wherein:
the first holding unit includes:
a first holding shaft fitted to a side of the hinge frame,
and a first holding arm having one end rotatably fitted to the first holding shaft and the other end connected to the first hinge arm so as to rotate about the first holding shaft when the first hinge arm rotates.
7. The folding hinge device of claim 6, wherein:
the other end of the first hinge arm is formed with a first connecting groove in the shape of a long groove,
the other end of the first holding arm includes a first connecting shaft inserted into the first connecting groove and slidably moved.
8. The folding hinge device of claim 6, wherein:
the first holding unit includes:
one end of the guide rod is fixed on the side part of the hinge frame in parallel with the first retaining arm;
a slider which can slide along with the guide rod;
an elastic member elastically supporting the slider toward the first holding arm.
9. The folding hinge device of claim 8, wherein:
one end of the first holding arm is formed with a first holding cam portion in a curved manner along the periphery of the first holding shaft,
one end of the guide rod is formed with a first guide cam portion that is curved along the periphery of the first holding shaft and is connected to the first holding cam portion.
10. The folding hinge device of claim 8, wherein: the end of the guide rod is formed with a fixing part for supporting the elastic member.
11. The folding hinge assembly of claim 1, wherein: comprising cam means for converting a linear movement of said link slider into a rotational movement of said first hinge arm and said second hinge arm.
12. The folding hinge assembly of claim 11, wherein:
in the above-mentioned cam means, the cam means,
a guide portion for converting a linear motion of the link slider into a rotational motion of the first hinge arm and the second hinge arm is formed on the link slider or on either of the first hinge arm and the second hinge arm,
the link slider or the other of the first hinge arm and the second hinge arm is formed with a sliding portion that moves along with the guide portion.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2020-0134328 | 2020-10-16 | ||
| KR20200134328 | 2020-10-16 | ||
| KR1020210013106A KR102317806B1 (en) | 2020-10-16 | 2021-01-29 | Foldable hinge apparatus |
| KR10-2021-0013106 | 2021-01-29 | ||
| PCT/KR2021/013430 WO2022080716A1 (en) | 2020-10-16 | 2021-09-30 | Foldable hinge device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114761907A true CN114761907A (en) | 2022-07-15 |
| CN114761907B CN114761907B (en) | 2023-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180006164.3A Active CN114761907B (en) | 2020-10-16 | 2021-09-30 | Folding hinge device |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR102317806B1 (en) |
| CN (1) | CN114761907B (en) |
| WO (1) | WO2022080716A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023106602A1 (en) * | 2021-12-08 | 2023-06-15 | 삼성전자주식회사 | Hinge assembly and electronic device comprising same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180313399A1 (en) * | 2016-01-25 | 2018-11-01 | Fujitsu Limited | Hinge and electronic apparatus |
| US20190166703A1 (en) * | 2017-11-28 | 2019-05-30 | Samsung Electronics Co., Ltd. | Foldable display device |
| KR20190124110A (en) * | 2018-04-25 | 2019-11-04 | (주)오라컴디스플레이 | Infolding Hinge Structure for Flexible Display Panel |
| CN110544429A (en) * | 2018-05-28 | 2019-12-06 | 株式会社普莱斯科 | Folding display device |
| KR20200101229A (en) * | 2019-02-19 | 2020-08-27 | 삼성전자주식회사 | Structure of Hinge and Foldable Display Device including the same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101875855B1 (en) * | 2014-02-17 | 2018-07-06 | 삼성전자주식회사 | Hinge apparatus and foldable display apparatus having the same |
| KR102595230B1 (en) * | 2016-10-13 | 2023-10-30 | 삼성전자주식회사 | Foldable electronic device including flexible display |
| KR102108151B1 (en) * | 2018-02-13 | 2020-05-11 | 주식회사 다이아벨 | Folding Hinge Apparatus and Electronic Device having it |
| KR102587589B1 (en) * | 2019-02-19 | 2023-10-12 | 삼성전자주식회사 | A hinge structure and an electronic device comprising the same |
| KR102601837B1 (en) * | 2019-02-19 | 2023-11-15 | 삼성전자주식회사 | A hinge module and a foldable electronic device including the same |
-
2021
- 2021-01-29 KR KR1020210013106A patent/KR102317806B1/en active IP Right Grant
- 2021-09-30 CN CN202180006164.3A patent/CN114761907B/en active Active
- 2021-09-30 WO PCT/KR2021/013430 patent/WO2022080716A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180313399A1 (en) * | 2016-01-25 | 2018-11-01 | Fujitsu Limited | Hinge and electronic apparatus |
| US20190166703A1 (en) * | 2017-11-28 | 2019-05-30 | Samsung Electronics Co., Ltd. | Foldable display device |
| KR20190124110A (en) * | 2018-04-25 | 2019-11-04 | (주)오라컴디스플레이 | Infolding Hinge Structure for Flexible Display Panel |
| CN110544429A (en) * | 2018-05-28 | 2019-12-06 | 株式会社普莱斯科 | Folding display device |
| KR20200101229A (en) * | 2019-02-19 | 2020-08-27 | 삼성전자주식회사 | Structure of Hinge and Foldable Display Device including the same |
Also Published As
| Publication number | Publication date |
|---|---|
| KR102317806B1 (en) | 2021-10-25 |
| WO2022080716A1 (en) | 2022-04-21 |
| CN114761907B (en) | 2023-11-07 |
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