CN114830061B - Folding hinge device - Google Patents
Folding hinge device Download PDFInfo
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- CN114830061B CN114830061B CN202180006169.6A CN202180006169A CN114830061B CN 114830061 B CN114830061 B CN 114830061B CN 202180006169 A CN202180006169 A CN 202180006169A CN 114830061 B CN114830061 B CN 114830061B
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- 230000036544 posture Effects 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001690 polydopamine Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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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
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1675—Miscellaneous details related to the relative movement between the different enclosures or enclosure parts
- G06F1/1681—Details related solely to hinges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
-
- 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
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
- G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
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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
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
- H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
- H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
- H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Signal Processing (AREA)
- Mathematical Physics (AREA)
- Telephone Set Structure (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
In order to solve the above problems, the present invention provides a folding hinge device for enabling both ends of a portable terminal to simultaneously rotate at a uniform angle to realize stable opening and closing. The folding hinge device of the present invention includes: a hinge base; the first swing arm is rotatably assembled on the hinge base and is connected with one end of a display screen of the portable terminal; the second swing arm is rotatably assembled on the hinge base and is connected with the other end of the display screen of the portable terminal; a first hinge shaft and a second hinge shaft arranged side by side at a distance from each other on one side of the hinge base; a first hinge arm having one end connected to the first swing arm and the other end rotatably coupled to the first hinge shaft; a second hinge arm having one end connected to the second swing arm and the other end rotatably coupled to the second hinge shaft; and the link sliding block is connected with the first hinge arm and the second hinge arm, and can slide along the link guide piece when the first hinge arm and the second hinge arm rotate, 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 folding hinge device, and more particularly, to a folding hinge device which is provided in a portable terminal to which a flexible display screen is applied, and which can stably fold and unfold the display screen by being improved.
Background
In general, in order to wirelessly use services such as communication and broadcasting during a mobile process in a non-stationary place, portable terminals such as mobile phones, PDAs, notebook computers, and DMB mobile phones are often used.
The portable terminal is one of indispensable necessities for enjoying life convenience brought by the informatization age, and particularly, the popularization range of mobile phones is extremely wide, and the portable terminal relates to primary schools, middle-high school students, even the elderly and the like.
As described above, with the recent rapid increase in demand and user level of portable terminals, consumers using the same desire to continue to use products carrying new designs or functions.
The portable terminal is first combined with a main body with dial keyboard and a cover with display board in a mutually openable and closable manner, and is divided into a folding type, a sliding type, a swinging type and the like according to the cover opening and closing structure of the main body.
Currently, with the development of touch screen technology, a bar-shaped smart phone-shaped portable terminal that does not require a dial pad is becoming mainstream. The bar-shaped portable terminal is provided with a display screen, and the size of the display screen corresponds to the whole area in front.
In addition, with the development of flexible display technology, portable terminals equipped with a folding display are expected to become the mainstream of the second generation.
The portable terminal to which the flexible display screen is applied may provide: and the portable terminal is equal to the display screen which is of a traditional portable terminal in transverse and vertical sizes and is larger than a traditional product when being unfolded.
However, the flexible display screen is changed in length when folded, and cannot use the hinge device applied to the conventional folder-type portable terminal.
Therefore, there is an urgent need to develop a novel folding hinge device that enables both ends of a flexible display screen to be uniformly folded at the same angle and can cope with a change in length.
[ Prior Art literature ]
[ patent literature ]
Korean national publication patent No. 10-2019-014110
Disclosure of Invention
Problems to be solved
In order to solve the above-mentioned drawbacks, the present invention provides a folding hinge device capable of enabling both ends of a portable terminal to simultaneously rotate at a uniform angle to realize stable opening and closing.
Solution to the problem
In order to achieve the above object of the present invention, a folding hinge device of the present invention includes:
a hinge base;
the first swing arm is rotatably assembled on the hinge base and is connected with one end of a display screen of the portable terminal;
the second swing arm is rotatably assembled on the hinge base and is connected with the other end of the display screen of the portable terminal;
a first hinge shaft and a second hinge shaft arranged side by side at a distance from each other on one side of the hinge base;
a first hinge arm having one end connected to the first swing arm and the other end rotatably coupled to the first hinge shaft;
a second hinge arm having one end connected to the second swing arm and the other end rotatably coupled to the second hinge shaft;
and the link sliding block is connected with the first hinge arm and the second hinge arm, and can slide along the link guide piece when the first hinge arm and the second hinge arm rotate, so that the first hinge arm and the second hinge arm rotate at the same rotation angle.
The first hinge arm or the link slider is formed with a first link groove, the second hinge arm or the link slider is formed with a second link groove, the first link groove and the second link groove are long-hole-shaped towards the diagonal direction, and the link slider is quasi-symmetrical, so that the first hinge arm and the second hinge arm rotate symmetrically.
The other of the first hinge arm and the link slider is provided with a first link stay that slides along the first link groove when the first hinge arm rotates.
The first hinge arm is provided with a first link groove connected with one end of the link slider, the second hinge arm is provided with a second link groove connected with the other end of the link slider, and the first link groove and the second link groove are in long hole shapes towards the diagonal direction and are symmetrical with respect to the link slider, 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 strut which slides along the first link groove when the first hinge arm rotates.
The hinge base is provided with a first swinging part which is inserted into the first swinging arm to rotate, a first swinging bulge is formed on the inner side of the first swinging part, a half-arc-shaped first swinging groove is formed on the side part of the first swinging arm, and the half-arc-shaped first swinging groove is inserted into the first swinging bulge to guide the sliding rotation.
Further comprises: and a holding unit which is attached to the first hinge shaft and elastically adds a holding posture to the first hinge arm when the first hinge arm rotates.
A side portion of the first hinge arm is formed with a first rotating cam, and the holding unit includes: a holding cam connected to the first rotating cam to slide along with the first hinge shaft when the first hinge arm rotates; and an elastic member elastically supporting the holding cam toward the first rotating cam.
Effects of the invention
As described above, when the folding hinge device of the present invention is connected, the first hinge arm and the second hinge arm can be simultaneously rotated at the same angle by the linear movement of the link slider, thereby solving the problems of reduced production efficiency, damage, etc. occurring in the connection structure using gear teeth in the conventional technology, softening the rotation, and improving durability.
Drawings
Fig. 1 is an oblique view showing an unfolded state of the 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 another exploded perspective view of the folding hinge device according to embodiment 1 of the present invention.
Fig. 4 is a perspective view showing a folded state of the folding hinge device according to embodiment 1 of the present invention.
Fig. 5 is a bottom view showing an unfolded state of the folding hinge device according to embodiment 1 of the present invention.
Fig. 6 is a bottom view showing a folded state of the folding hinge device according to embodiment 1 of the present invention.
Fig. 7 is a cross-sectional view from A-A in fig. 1.
Fig. 8 is a sectional view showing a folded state of the folding hinge device according to embodiment 1 of the present invention.
Fig. 9 is an oblique view showing an unfolded state of the folding hinge device according to embodiment 2 of the present invention.
Fig. 10 is an exploded perspective view of a folding hinge device according to embodiment 2 of the present invention.
Fig. 11 is another exploded perspective view of the folding hinge device according to embodiment 2 of the present invention.
Fig. 12 is a plan view showing an unfolded state of the folding hinge device according to embodiment 2 of the present invention.
Fig. 13 is a perspective view showing a folded state of the folding hinge device according to embodiment 2 of the present invention.
Detailed Description
In the following detailed description of the invention, reference will be made to the accompanying drawings to illustrate a specific embodiment 1 in which the invention may be practiced. These examples 1 are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments 1 of the present invention, although not identical, 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 positions or arrangements of the individual components in each of the described embodiment 1 may be modified without departing from the spirit and scope of the present 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 scope of the appended claims, appropriately interpreted, along with the full range of equivalents to which the claims are entitled. In the drawings, like reference numerals designate identical or similar functions in the several layers.
Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
Example 1
As shown in fig. 1 to 8, the folding hinge device according to embodiment 1 of the present invention is composed of a hinge base 100, a first swing arm 200, a second swing arm 300, a first hinge shaft 410, a second hinge shaft 420, a link guide 450, a first hinge arm 500, a second hinge arm 600, a link slider 700 and a holding unit 800,
the hinge base 100 is provided on the bottom surface of the central portion of a display screen of a portable terminal, and has a flat hexahedral shape.
The display screen is made of flexible material, and can be folded and unfolded to be folded with a portion configuring the hinge base 100 as a center.
And, one end of the hinge base 100 is formed with: a first swing portion 110 in which the first swing arm 200 is interposed and a second swing portion 120 in which the second swing arm 300 is interposed.
The first swing portion 110 and the second swing portion 120 are spaced apart from each other in the right-left direction and are symmetrical to each other in the diagonal direction.
Further, the first swing portion 110 is formed with first swing protrusions 130 protruding from both inner sides thereof, and the second swing portion 120 is formed with second swing protrusions 140 protruding from both inner sides thereof.
The first swing protrusion 130 and the second swing protrusion 140 are protruded in an arc shape, and guide the sliding rotation of the first swing arm 200 and the second swing arm 300.
In addition, in the first swing arm 200, one end is inserted into the first swing portion 110, and the other end is connected to one end of the portable terminal display screen.
Specifically, one end of the first swing arm 200 has a semi-cylindrical shape, and a semi-arc-shaped first swing groove 210 is formed at both left and right sides thereof, into which the first swing protrusion 130 is inserted.
The other end of the first swing arm 200 is flat and plate-shaped to support one end of a display screen of the portable terminal.
The other end of the first swing arm 200 is formed with a first chute 220 connected to the first hinge arm 500 described below.
The first sliding groove 220 has an arc-shaped slot shape, and the curvature thereof is smaller than that of the first swing groove 210.
The second swing arm 300 is symmetrical to the first swing arm 200 with respect to the hinge base 100, and has one end inserted into the second swing portion 120 and the other end connected to the other end of the portable terminal display.
Specifically, one end of the second swing arm 300 has a semi-cylindrical shape, and a semi-arc-shaped second swing groove 310 is formed at both left and right sides thereof, into which the second swing protrusion 140 is inserted.
The other end of the second swing arm 300 is flat and plate-shaped to support the other end of the portable terminal display.
The second swing arm 300 has a second slide groove 320 formed at the other end thereof, which is connected to the second hinge arm 600 described below.
The second sliding groove 320 is in an arc-shaped slot shape, and the curvature thereof is smaller than that of the second swinging groove 310.
The first hinge shaft 410 and the second hinge shaft 420 have a circular long bar shape, and one end is fixed to one side of the hinge base 100 without rotating and is laterally elongated.
And, the first hinge shaft 410 and the second hinge shaft 420 are vertically symmetrical with each other with respect to the link guide 450 described below,
such first hinge shaft 410 and the second hinge shaft 420 are rotation shafts of the first hinge arm 500 and the second hinge arm 600 described below, and function to guide movement of the holding unit 800 described below.
The link guide 450 is provided between the first hinge shaft 410 and the second hinge shaft 420, and guides the link slider 700, which will be described later, to slide in a lateral direction.
Specifically, the link guide 450 is composed of a first fixing member 451, a second fixing member 452, and a guide rod 453.
In the first fixing member 451, one end is mounted on one end of the first hinge shaft 410, and the other end is mounted on one end of the second hinge shaft 420.
And, the center of the first fixing member 451 fixes one end equipped with the guide rod 453.
In the second fixing member 452, one end is mounted to the other end of the first hinge shaft 410, and the other end is mounted to the other end of the second hinge shaft 420.
And, the center of the second fixing member 452 is fixed with the other end of the guide rod 453.
The guide rod 453 is in a long rod shape toward the lateral direction, one end of the guide rod 453 is fixedly mounted on the first fixing member 451, and the other end of the guide rod 453 is fixedly mounted on the second fixing member 452.
The guide rods 453 are disposed between the first hinge shaft 410 and the second hinge shaft 420 so as to be parallel to each other, and guide the movement of the link slider 700.
In the first hinge arm 500, one end is connected to the first swing arm 200, and the other end is rotatably mounted on the first hinge shaft 410, connected to the link slider 700 described below, and coupled to the second hinge arm 600.
Specifically, one end of the first hinge arm 500 is provided with a first link shaft 510 inserted into the first chute 210.
When the first swing arm 200 performs sliding rotation, the first link shaft 510 slides along the first sliding groove 210, so that the first hinge arm 500 rotates.
And, a first link groove 520 is formed at the outer circumference of the other end of the first hinge arm 500.
The first link groove 520 is inserted into a first link post 710 of the link slider 700, which will be described later, and when the first hinge arm 500 is rotated, the link slider 700 is moved left and right, so that the second hinge arm 600, which will be described later, is rotated simultaneously with the first hinge arm 500.
The side surface of the first link groove 520 is inclined in a left direction and the other end is inclined in a right direction with respect to a center line of the first link groove 520.
In this way, the side surfaces of the first link groove 520 are inclined in opposite directions with respect to the center, thereby minimizing friction between the side surfaces of the first slide groove 220 and the link slider 700 and softening rotation.
Further, a first rotating cam 530 connected to the holding unit 800 is formed at both sides of the other end of the first hinge arm 500.
The first rotating cam 530 is bent at a certain angle toward the holding unit 800 with respect to the first hinge shaft 410 as a center, is connected to the holding unit 800, and applies a fixing force to the first hinge arm 500 to prevent any rotation.
The first hinge arm 500 is spaced apart from the first link groove 520. The first hinge arm 500 may be manufactured by injection molding, and the first link groove 520 may be additionally processed by CNC or the like, which may reduce productivity. However, when the first hinge arms 500 are separated right and left with respect to the first link grooves 520, CNC processing is not required, and the first hinge arms can be manufactured by only injection molding, which can improve productivity.
The second hinge arm 600 is symmetrical to the first hinge arm 500 centering on the link guide 450, specifically, one end is connected to the second swing arm 300 through a second link shaft 610, and the other end is rotatably mounted to the second hinge shaft 420.
In the second hinge arm 600, a second link groove 620 is formed in the outer circumferential surface of the other end, and a second rotating cam 630 connected to the holding unit 800 is formed at both side portions.
The second link groove 620 is symmetrical to the first link groove 520 centering on the link guide 450, and is inserted into a second link post 720 of the link slider 700 described below.
The second rotating cam 630 is bent at a certain angle toward the holding unit 800 around the second hinge shaft 420, is connected to the holding unit 800, and applies a fixing force to the second hinge arm 600 to prevent any rotation.
The second hinge arm 600 is spaced apart from the second link groove 620.
In addition, the link slider 700 is hexahedral to wrap around the link guide 450, and may slide in a lateral direction along with the link guide 450.
And, the link slider 700 is formed with protrusions: a first link post 710 inserted into the first slide slot 220 and a second link post 720 inserted into the first link slot 520.
And, the first link stay 710 is rotatably equipped with a first link roller 730, and the second link stay 720 is rotatably equipped with a second link roller 740.
The first linking roller 730 rotates by friction with the inner side surface of the first linking groove 520 when the first hinge arm 500 rotates, and the second linking roller 740 rotates by friction with the inner side surface of the second linking groove 620.
Such first and second link rollers 730 and 740 may reduce vibration and noise generated when the first and second hinge arms 500 and 600 and the link slider 700 function as a link.
When the first hinge arm 500 is rotated, the link slider 700 slides in the left-right direction along with the link guide 450, and the second hinge arm 600 is simultaneously rotated in a direction symmetrical to the first hinge arm 500.
In the conventional art, in order to simultaneously implement the rotation of the first hinge arm 500 and the second hinge arm 600, gears are coupled to each other, but gear teeth have disadvantages of limitation in miniaturization of components, difficulty in processing, and increase in production cost, and have disadvantages of weak external impact resistance and low durability.
However, the present invention can enable the first hinge arm 500 and the second hinge arm 600 to be interlocked by the sliding structure of the first sliding chute 220 and the first link stay 710, thereby reducing the size of the components, achieving miniaturization, and reducing the production cost and improving the durability because of the convenience of processing.
In addition, the holding unit 800 is mounted on the first hinge shaft 410 and the second hinge shaft 420, elastically presses the first hinge arm 500 and the second hinge arm 600, and adds a holding posture.
Specifically, the holding unit 800 is composed of a holding cam 810, an elastic member 820, and a supporting member 830.
The holding cam 810 has a cylindrical shape at one end thereof, and is configured to wrap the first hinge shaft 410, and has a cylindrical shape at the other end thereof, and is configured to wrap the second hinge shaft 420.
In the holding cam 810, a first holding cam 811 corresponding to the first rotating cam 530 is formed at one end, and a second holding cam 812 corresponding to the second rotating cam 630 is formed at the other end.
The holding cams 810 are formed of two members, and are symmetrically disposed on both left and right sides with respect to the first hinge arm 500 and the second hinge arm 600, and the holding posture is added to both side portions of the first hinge arm 500 and the second hinge arm 600.
The elastic member 820 is composed of a compression coil spring, and is composed of 4 pieces, and is respectively assembled at both ends of the first hinge shaft 410 and both ends of the second hinge shaft 420. In this elastic member 820, one end is connected to the holding cam 810, and the other end is connected to the supporting member 830, and the holding cam 810 is elastically supported toward the first hinge arm 500 or the second hinge arm 600, thereby forming a holding posture.
In this way, the holding cam 810 and the elastic member 820 are provided on both sides of the first hinge arm 500 and the second hinge arm 600, respectively, and the holding posture is added in the direction facing each other, so that the interval is minimized when the first hinge arm 500 and the second hinge arm 600 are rotated, and vibration and shake are reduced.
The support 830 is cylindrical and is mounted on the first rotation shaft 410 or the second rotation shaft 420.
In this supporting member 830, one end is connected to the other end of the elastic member 820 to support the elastic member 820, and the other end is connected to the first fixing member 451 or the second fixing member 452.
The folding hinge device according to embodiment 1 of the present invention is composed of the above-described configuration, and when the portable terminal is folded, the first hinge arm 500 rotates in the counterclockwise direction centering on the first hinge shaft 410 as the first swing arm 200 slides and rotates in the counterclockwise direction, and the link slider 700 slides in the left direction by the interlocking action of the first link slot 520 and the first link post 710.
Wherein, due to the movement of the link slider 700, the second hinge arm 600 and the second swing arm 300 are also simultaneously rotated in a clockwise direction, so that the other end of the first swing arm 200 and the other end of the second swing arm 300 face each other.
On the contrary, when the portable terminal is unfolded, as the first swing arm 200 is rotated in the clockwise direction, the first hinge arm 500 is rotated in the clockwise direction centering on the first hinge shaft 410, the link slider 700 is slid in the right direction, and at the same time, the second hinge arm 600 and the second swing arm 300 are rotated in the counterclockwise direction.
Thus, when connection is achieved, the first hinge arm 500 and the second hinge arm 600 simultaneously rotate at the same angle through the left-right movement of the link slider 700, thereby solving the problems of reduced production efficiency, damage and the like occurring in the connection structure using gears in the conventional art, softening the rotation, and improving durability.
And, support is provided for the first hinge arm 500 and the second hinge arm 600, so that the first rotating cam 530 and the second rotating cam 630 are prevented from being arbitrarily rotated in a folded or unfolded state as they are engaged with the holding cam 810 of the holding unit 800, thereby achieving stability in use.
Example 2
As shown in fig. 9 to 13, the folding hinge device according to embodiment 2 of the present invention is composed of a hinge base 100, a first swing arm 200, a second swing arm 300, a first hinge shaft 410, a second hinge shaft 420, a link guide 450, a first hinge arm 500, a second hinge arm 600, a link slider 700, and a holding unit 800.
The configuration of the hinge base 100, the first swing arm 200, the second swing arm 300, the first hinge shaft 410, and the second hinge shaft 420 in embodiment 2 is the same as that in embodiment 1, and therefore, a detailed description thereof will be omitted here.
In embodiment 2, the link guide 450 is provided between the first hinge shaft 410 and the second hinge shaft 420, and guides the link slider 700 described below to slide in the lateral direction.
Specifically, the link guide 450 is composed of a first fixing member 451, a second fixing member 452, and a guide rod 453.
The first fixing member 451 is composed of 2 pieces, and is fixedly assembled to one end of the first hinge shaft 410 and one end of the second hinge shaft 420, respectively.
And, the center of the first fixing member 451 fixes one end equipped with the guide rod 453.
The second fixing member 452 is composed of 2 pieces, which are identical to the first fixing member 451, and is respectively assembled to the other end of the first hinge shaft 410 and the other end of the second hinge shaft 420.
Such first and second fixing members 451 and 452 support the elastic member 820 of the holding unit 800 toward the link slider 700.
And, the center of the second fixing member 452 fixes the other end of the guide rod 453.
The guide rod 453 is in a long rod shape toward the lateral direction, one end of the guide rod 453 is fixedly mounted on the first fixing member 451, and the other end of the guide rod 453 is fixedly mounted on the second fixing member 452.
The guide rods 453 are disposed between the first hinge shaft 410 and the second hinge shaft 420 so as to be parallel to each other, and guide the movement of the link slider 700.
* Unlike embodiment 1, the first hinge arm 500 is not separated from the first link groove 520 in the right and left direction, but is formed as a single piece, and the second hinge arm 600 is not separated from the second link groove 620 in the right and left direction, but is formed as a single piece.
In embodiment 2, the link slider 700 is hexahedral to cover the circumference of the link guide 450, and is slidable in the lateral direction along with the link guide 450.
And, the link slider 700 is formed with protrusions: a first link post 710 inserted into the first slide slot 220 and a second link post 720 inserted into the first link slot 520.
The first link pillar 710 is cylindrical, and a protrusion is formed at one side of the link slider 700.
Such a first link stay 710 is inserted into the first link groove 520, and when the first hinge arm 500 is rotated, the link slider 700 moves along with the link guide 450 under the guide of the first link groove 520.
Similarly, the second link strut 720 is also cylindrical, and a protrusion is formed on the other side of the link slider 700.
Such a second link stay 720 is inserted into the second link groove 620, and when the second hinge arm 600 is rotated, the link slider 700 moves along with the link guide 450 under the guide of the second link groove 620.
In addition, the holding unit 800 is mounted on the first hinge shaft 410 and the second hinge shaft 420, elastically presses the first hinge arm 500 and the second hinge arm 600, and adds a holding posture.
Specifically, the holding unit 800 is composed of a holding cam 810 and an elastic member 820.
The holding cam 810 has a cylindrical shape at one end thereof, and is configured to wrap the first hinge shaft 410, and has a cylindrical shape at the other end thereof, and is configured to wrap the second hinge shaft 420.
In the holding cam 810, a first holding cam 811 corresponding to the first rotating cam 530 is formed at one end, and a second holding cam 812 corresponding to the second rotating cam 630 is formed at the other end.
The holding cams 810 are composed of 2 pieces, and are symmetrically disposed on both left and right sides with respect to the first hinge arm 500 and the second hinge arm 600, and the holding postures are added to both side portions of the first hinge arm 500 and the second hinge arm 600.
The elastic member 820 is composed of a compression coil spring, and is composed of 4 pieces, and is respectively assembled at both ends of the first hinge shaft 410 and both ends of the second hinge shaft 420. In this elastic member 820, one end is connected to the holding cam 810 and the other end is connected to the first fixing member 451 or the second fixing member 452 of the link guide 450.
Such elastic member 820 elastically supports the holding cam 810 toward the first hinge arm 500 or the second hinge arm 600, forming a held posture.
In this way, the holding cam 810 and the elastic member 820 are provided on both sides of the first hinge arm 500 and the second hinge arm 600, respectively, and the holding posture is added in the direction facing each other, so that the interval is minimized when the first hinge arm 500 and the second hinge arm 600 are rotated, and vibration and shake are reduced.
The folding hinge device according to embodiment 2 of the present invention is composed of the above-described configuration, and when the portable terminal is folded, the first hinge arm 500 rotates in the counterclockwise direction centering on the first hinge shaft 410 as the first swing arm 200 slides and rotates in the counterclockwise direction, and the link slider 700 slides in the left direction by the interlocking action of the first link slot 520 and the first link post 710.
Wherein, due to the movement of the link slider 700, the second hinge arm 600 and the second swing arm 300 are also simultaneously rotated in a clockwise direction, so that the other end of the first swing arm 200 and the other end of the second swing arm 300 face each other.
On the contrary, when the portable terminal is unfolded, as the first swing arm 200 is rotated in the clockwise direction, the first hinge arm 500 is rotated in the clockwise direction centering on the first hinge shaft 410, the link slider 700 is slid in the right direction, and at the same time, the second hinge arm 600 and the second swing arm 300 are rotated in the counterclockwise direction.
Thus, when connection is achieved, the first hinge arm 500 and the second hinge arm 600 simultaneously rotate at the same angle through the left-right movement of the link slider 700, thereby solving the problems of reduced production efficiency, damage and the like occurring in the connection structure using gears in the conventional art, softening the rotation, and improving durability.
And, support is provided for the first hinge arm 500 and the second hinge arm 600, so that the first rotating cam 530 and the second rotating cam 630 are prevented from being arbitrarily rotated in a folded or unfolded state as they are engaged with the holding cam 810 of the holding unit 800, thereby achieving stability in use.
The invention is not limited thereto and modifications may be made by those skilled in the art without departing from the spirit and scope of the following claims, and it is therefore to be construed that such modifications fall within the scope of the invention.
Claims (5)
1. A folding hinge device, characterized in that:
a hinge base;
the first swing arm is rotatably assembled on the hinge base and is connected with one end of a display screen of the portable terminal;
the second swing arm is rotatably assembled on the hinge base and is connected with the other end of the display screen of the portable terminal;
a first hinge shaft and a second hinge shaft arranged side by side at a distance from each other on one side of the hinge base;
a link guide fitted between the first hinge shaft and the second hinge shaft;
a first hinge arm having one end connected to the first swing arm and the other end rotatably coupled to the first hinge shaft;
a second hinge arm having one end connected to the second swing arm and the other end rotatably coupled to the second hinge shaft;
the link sliding block can enable the first hinge arm and the second hinge arm to simultaneously rotate at the same rotation angle along with the sliding of the link guide piece when the first hinge arm and the second hinge arm rotate through connection,
either one of the first hinge arm or the link slider is formed with a first link groove,
either one of the second hinge arm or the link slider is formed with a second link groove,
the first link groove and the second link groove are long holes in the diagonal direction, and the link sliding block is quasi-symmetrical, so that the first hinge arm and the second hinge arm rotate symmetrically.
2. The folding hinge device according to claim 1, wherein: the other of the first hinge arm and the link slider is provided with a first link stay that slides along the first link groove when the first hinge arm rotates.
3. The folding hinge device according to claim 1, wherein: the hinge base is provided with a first swinging part which is inserted into the first swinging arm to rotate, a first swinging bulge is formed on the inner side of the first swinging part, a half-arc-shaped first swinging groove is formed on the side part of the first swinging arm, and the half-arc-shaped first swinging groove is inserted into the first swinging bulge to guide the sliding rotation.
4. The folding hinge device according to claim 1, wherein: further comprises: and a holding unit which is attached to the first hinge shaft and elastically adds a holding posture to the first hinge arm when the first hinge arm rotates.
5. The folding hinge device of claim 4, wherein:
the holding unit includes:
a holding cam which is slidable with the first hinge shaft and the second hinge shaft;
and an elastic member having one end connected to the holding cam and providing elastic support toward the first hinge arm or the second hinge arm.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2020-0155572 | 2020-11-19 | ||
| KR20200155572 | 2020-11-19 | ||
| KR1020210013109A KR102284053B1 (en) | 2020-11-19 | 2021-01-29 | Foldable hinge apparatus |
| KR10-2021-0013109 | 2021-01-29 | ||
| PCT/KR2021/013431 WO2022108101A1 (en) | 2020-11-19 | 2021-09-30 | Foldable hinge device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114830061A CN114830061A (en) | 2022-07-29 |
| CN114830061B true CN114830061B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180006169.6A Active CN114830061B (en) | 2020-11-19 | 2021-09-30 | Folding hinge device |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR102284053B1 (en) |
| CN (1) | CN114830061B (en) |
| WO (1) | WO2022108101A1 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102284053B1 (en) * | 2020-11-19 | 2021-08-02 | (주)케이에이치바텍 | Foldable hinge apparatus |
| KR102505457B1 (en) * | 2021-08-31 | 2023-03-06 | 주식회사 에스코넥 | Foldable display apparatus with hinge device |
| KR20230036267A (en) * | 2021-09-07 | 2023-03-14 | 삼성전자주식회사 | Hinge assembly and electronic device comprising the same |
| KR102575372B1 (en) * | 2021-10-14 | 2023-09-08 | 주식회사 파인엠텍 | Hinge device of foldable mobile device using flexible display panel |
| KR102523273B1 (en) * | 2021-10-14 | 2023-04-21 | 주식회사 파인엠텍 | Hinge device of foldable mobile device using flexible display panel |
| KR102579765B1 (en) * | 2021-10-14 | 2023-09-19 | 주식회사 이엠비 | Hinge device of foldable mobile device using flexible display panel |
| KR102493176B1 (en) * | 2021-11-02 | 2023-01-31 | 유아이엘 주식회사 | Multi step hinge assembly for folder type portable device |
| WO2023106602A1 (en) * | 2021-12-08 | 2023-06-15 | 삼성전자주식회사 | Hinge assembly and electronic device comprising same |
| CN118167731A (en) * | 2022-01-18 | 2024-06-11 | 荣耀终端有限公司 | Synchronous mechanism, rotating shaft mechanism and electronic equipment |
| WO2024054068A1 (en) * | 2022-09-07 | 2024-03-14 | 삼성전자 주식회사 | Hinge module and electronic device comprising same |
| CN115405615A (en) * | 2022-09-13 | 2022-11-29 | 维沃移动通信有限公司 | Hinge mechanism and electronic device |
| CN117823518A (en) * | 2022-09-29 | 2024-04-05 | 荣耀终端有限公司 | Rotating mechanism and foldable electronic device |
| CN115653999A (en) * | 2022-10-26 | 2023-01-31 | 维沃移动通信有限公司 | Hinge assembly and electronic device |
| CN116677705B (en) * | 2022-12-01 | 2024-07-19 | 荣耀终端有限公司 | Transmission assembly of hinge, hinge and foldable electronic equipment |
| CN118188693A (en) * | 2022-12-14 | 2024-06-14 | 维沃移动通信有限公司 | Hinge mechanism and electronic device |
| CN115949665B (en) * | 2023-03-10 | 2023-08-29 | 荣耀终端有限公司 | Hinge mechanism and foldable electronic equipment |
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2021
- 2021-01-29 KR KR1020210013109A patent/KR102284053B1/en active IP Right Grant
- 2021-09-30 CN CN202180006169.6A patent/CN114830061B/en active Active
- 2021-09-30 WO PCT/KR2021/013431 patent/WO2022108101A1/en active Application Filing
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| CN202484068U (en) * | 2011-07-13 | 2012-10-10 | 三星电子株式会社 | Gear cam installation device of double-shaft hinge device for portable terminal |
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| CN111580599A (en) * | 2019-02-19 | 2020-08-25 | 三星电子株式会社 | Hinge module and foldable electronic device including the same |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2022108101A1 (en) | 2022-05-27 |
| CN114830061A (en) | 2022-07-29 |
| KR102284053B1 (en) | 2021-08-02 |
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