TWM634895U - Linkage rod type pivot device and portable electronic device using the same - Google Patents

Abstract

The invention is a link-type pivot device, which includes two device connection seats and at least one linkage assembly. The interlocking assembly enables the connecting seats of the two devices to be turned over synchronously. Each interlocking assembly has a connecting piece and a first outer linking piece, a first inner linking piece, a second inner linking piece and a connecting piece pivoted in sequence. The second outer linkage. The first outer linkage, the first inner linkage, the connector and one of the device connection seats are connected to form a four-bar linkage; the second outer linkage, the second inner linkage, the connector and another device connection seat are connected to form a four-bar linkage mechanism. Another four-bar linkage. A protruding friction portion is formed on the first outer linking member, which abuts against and rubs against the connecting seat of the device to prevent the connecting seats of the two devices from turning over relative to each other, thereby generating stable resistance to meet the feeling of turning over and saving space.

Description

Link type hub and portable electronic device using same

The invention relates to a hinge device, especially a link type hinge device suitable for a flexible display.

With the gradual maturity of flexible screen technology, the current portable electronic devices such as mobile phones and tablets have begun to use flexible screens to design the electronic devices to be foldable, so that the electronic devices can be folded in half for easy storage when not in use . Although the flexible screen has a certain degree of flexibility compared with the traditional one, it is still necessary to ensure that the screen has a large enough bending radius in the half-folded state, and at the same time, it is necessary to ensure that the flexible screen will not be stretched during the folding and unfolding process or squeeze. In order to meet the requirements of flexible screens, electronic devices need to use link-type hinges to achieve the folding function.

However, although the link-type hinge can meet the requirements of the flexible display, it is not easy to generate stable resistance during the folding and unfolding process to satisfy the user feeling.

The hub of a traditional electronic device, such as a notebook hub, will be provided with a rotational resistance generator (or torque generator) on the axis of the hub. When the hub is rotated by an external force, the rotational resistance generator will move against the axis. Generate strong reverse torque to slow down the rotation of the hinge, so as to provide a better use feeling. However, if a rotational resistance generator is installed at the axis of the link type hinge, the axis of the hinge must also be designed thicker to withstand the powerful torque of the rotational resistance generator without damage, but the thicker axis It will lead to a substantial increase in the volume of the link-type hub, which cannot meet the thin and light requirements of portable electronic devices.

Therefore, the link type hinge device of the prior art really needs to be improved.

In view of the above-mentioned shortcomings and deficiencies of the prior art, the invention provides a link-type hinge that takes into account both thinness and stable resistance.

In order to achieve the above creative purposes, the technical means used in this creation is to design a link-type hub, including a first device connecting seat and a second device connecting seat; At least one linkage component, which connects the first device connection base and the second device connection base, and makes the first device connection base and the second device connection base relatively synchronously turn over: each of the at least one linkage component has a connector, which is elongated; A first outer linkage piece, a first inner linkage piece, a second inner linkage piece and a second outer linkage piece pivotally arranged on the connecting piece in sequence, wherein The two ends of the first outer linking piece are respectively pivoted with the connecting piece and the first device connecting seat; a first friction part protrudes from the first outer linking part, and the first friction part can abut against and rub against the first The device connecting seat is used to prevent the first device connecting seat from turning over synchronously with the second device connecting seat; The two ends of the first internal linkage are respectively a first connection end and a first seat end; the first connection end pivots the connecting piece, and the first seat end pivots the first device connection seat; The two ends of the second internal linkage are respectively a second connection end and a second seat end; the second connection end pivots the connecting piece, and the second seat end pivots the second device connection seat; Two ends of the second outer linking member are respectively pivoted to the connecting member and the second device connecting seat.

In order to achieve the above creation purpose, this creation further provides a portable electronic device, including Same as the link type hinge mentioned above; a first support plate, which is connected to the first device connection seat of the link type hinge; A second support plate is connected to the second device connecting seat of the link type hinge.

The advantage of this creation is that the first outer link of the linkage assembly protrudes from the first friction part, and when the first device connection seat and the second device connection seat are turned over, the first friction part can rub the first device connection seat To generate moderate resistance to limit the relative inversion of the first device connection seat and the second device connection seat; that is to say, the first friction part can make the link type hinge generate stable resistance during folding and unfolding to satisfy the use feeling .

Furthermore, the resistance generated by the first friction part rubbing against the connecting seat of the first device will not form a torque on the axis of the link-type hinge, so the axis of the link-type hinge can be designed to be thinner, thereby enabling The overall volume of the hub is reduced to meet the thin and light requirements of portable electronic devices.

Further, in the link-type hinge, the first connecting end of the first inner link is formed with a first engaging portion; the second connecting end of the second inner link is formed with a second engaging portion. portion, the second engaging portion engages with the first engaging portion of the first internal linkage to make the second internal linkage and the first internal linkage reversely rotate.

Further, in the above-mentioned link-type hinge device, the two ends of the second outer linkage of the at least one linkage assembly are respectively pivoted with the connecting piece and the second device connection base; on the second outer linkage A second friction part is formed in the protrusion, and the second friction part can abut against and rub against the second device connection seat to prevent the first device connection seat and the second device connection seat from turning over synchronously.

Further, in the above-mentioned link-type hub, wherein the first device connection seat includes a main body forming a first container; at least one first elastic piece is arranged in the first container of the main body The two ends of each of the at least one first elastic piece of the first device connecting seat are respectively a fixed end and a free end, the fixed end of the at least one first elastic piece is fixed to the main body, and the at least one first elastic piece is fixed to the main body. The free end extends toward the first outer link of the at least one link assembly and is adjacent to the first outer link; the first outer link of the at least one link assembly passes through the first cavity, the The first friction portion can abut against and rub against the at least one first elastic piece of the first device connection base to prevent the first device connection base from turning over synchronously with the second device connection base.

Further, in the above-mentioned link-type hinge device, a first deployment positioning hole is formed on each of the at least one first elastic piece of the first device connecting seat; the first device connecting seat and the second device connecting seat Can be turned away from each other to an unfolded state; in the unfolded state, the first friction part of the at least one linkage component passes through the first unfolded positioning hole of the at least one first elastic piece to limit the first device connecting seat And the connecting seat of the second device is turned over relatively.

Furthermore, in the above-mentioned link-type hinge device, each of the at least one first elastic sheet of the first device connecting seat is formed with a first unfolding positioning hole and a first folding positioning hole, and the first unfolding positioning The distance between the hole and the fixed end of the at least one first elastic piece is different from the distance between the first folding positioning hole and the fixed end of the at least one first elastic piece; the first device connecting seat and the second device connecting seat can be Turn away from each other to an unfolded state or turn close to each other to a folded state; in the unfolded state, the first friction part of the at least one linkage component passes through the first unfolded position of the at least one first elastic sheet hole to limit the relative turning of the first device connection seat and the second device connection seat; in the retracted state, the first friction part of the at least one linkage component passes through the first retracted part of the at least one first elastic piece The positioning hole is folded to restrict the relative turning of the first device connection base and the second device connection base.

Further, in the above-mentioned link-type hinge, wherein the number of the at least one first elastic piece is plural, and the first elastic pieces are arranged at intervals; An outer link can abut against and rub against one of the first elastic pieces of the first device connection base to prevent the first device connection base and the second device connection base from turning over relative to each other.

Furthermore, in the above-mentioned link-type hinge, a spacer is interposed between any two adjacent first elastic pieces.

The technical means adopted by this creation to achieve the predetermined creation purpose are further described below in conjunction with the drawings and the preferred embodiments of this creation.

Please refer to FIG. 1 , FIG. 12 and FIG. 13 , the link-type hinge device of the invention includes a first device connection base 10 , a second device connection base 20 and a plurality of linkage components 30 . The first device connection seat 10 and the second device connection seat 20 are preferably respectively connected to a first support plate A1 and a second support plate A2 of a portable electronic device A. The screen (not shown in the figure) is pasted on the first support plate A1 and the second support plate A2, and the link type hinge device of this invention is hidden under the flexible screen. The portable electronic device A is preferably a foldable mobile phone or a tablet computer.

Please refer to FIG. 1 to FIG. 4 , the aforementioned first device connecting seat 10 includes a main body 11 , a plurality of first elastic pieces 12 and a plurality of spacers 13 . The main body 11 is formed with a first cavity 111 (as shown in FIG. 2 ), and the first elastic pieces 12 are arranged in the first cavity 111 at intervals, and specifically, any two adjacent fixed ends 121 of the first elastic pieces 12 A spacer 13 is interposed therebetween, so that the first elastic pieces 12 are spaced in the first container 111 .

The first elastic piece 12 is preferably elongated, and its two ends are respectively a fixed end 121 and a free end 122 (as shown in FIGS. 2 and 4 ). The fixed end 121 of the first elastic piece 12 is fixed to the main body 11 . An elastic seam 14 is formed between the two free ends 122 of any two adjacent first elastic pieces 12 .

Please refer to Fig. 3, Fig. 6, Fig. 9 and Fig. 11, the first elastic piece 12 is preferably formed with a first unfolding positioning hole 123 and a first folding positioning hole 124, the first unfolding positioning hole 123 and The distance D1 between the fixed end 121 of the first elastic piece 12 is different from the distance D2 between the first folding positioning hole 124 and the fixed end 121 of the first elastic piece 12 . The so-called distance D1 between the first deployment positioning hole 123 and the fixed end 121 of the first elastic piece 12 refers to the distance D1 between the first expansion positioning hole 123 and the position where the first elastic piece 12 is fixed and cannot be deformed. The larger the distance D1, the first The deployment positioning hole 123 is located at the place where the first elastic piece 12 has a relatively large floating amount and is easily deformed. In this embodiment, since the first elastic piece 12 is interposed and fixed to the main body 11 through the spacer 13, the distance D1 refers to the distance between the edge of the spacer 13 and the center of the first expansion positioning hole 123, while the distance D2 It refers to the distance between the edge of the spacer 13 and the hole center of the first folding positioning hole 124 .

The aforementioned second device connecting seat 20 is preferably symmetrical to the first device connecting seat 10, that is, the second device connecting seat 20 includes a main body 21, a plurality of second elastic pieces 22 and a plurality of spacers 23, and the main body 21 forms a second The container 211, the fixed end 221 of the second elastic piece 22 is fixed in the second container 211 of the main body 21, an elastic seam is formed between the two free ends 222 of any two adjacent second elastic pieces 22, and each second elastic piece 22 A second unfolding positioning hole 223 and a second folding positioning hole 224 are formed thereon.

Please refer to FIG. 2 to FIG. 4 , the linkage assembly 30 is connected to the first device connecting base 10 and the second device connecting base 20 , and makes the first device connecting base 10 and the second device connecting base 20 relatively turnable. The linkage assembly 30 is preferably arranged in a staggered manner with the first elastic pieces 12 of the first device connection base 10 . In other preferred embodiments, there may be only one linkage assembly 30 .

Each link assembly 30 has a connecting piece 31, and a first outer linking piece 32, a first inner linking piece 33, a second inner linking piece 34 and a second outer linking piece pivotally arranged on the linking piece 31 in sequence 35. The so-called pivoting in sequence means that the first outer link 32, the first inner link 33, the second inner link 34 and the second outer link 35 pivotally set the connecting piece 31 and follow the length direction of the connecting piece 31 sequentially arrangement. The connecting piece 31 is elongated; the two ends of the first outer linking piece 32 are respectively pivoted to connect the connecting piece 31 and the first device connecting seat 10 . A first friction portion 321 protrudes from the first outer linkage member 32 , and the first friction portion 321 can abut against and rub against the first device connecting base 10 to prevent the first device connecting base 10 and the second device connecting base 20 from turning over relative to each other.

In this embodiment, the first outer link 32 is passed through the first slot 111 of the main body 11, and the first outer link 32 of each link assembly 30 is passed through one of the elastic seams in the first slot 111. 14; in other words, the plurality of free ends 122 of each first elastic piece 12 of the first device connection base 10 extends toward the first outer linkage 32 and is adjacent to one of the first outer linkages 32 .

The first friction part 321 of the first outer linkage 32 of each linkage assembly 30 can abut against and rub against the corresponding first elastic piece 12 on the first device connection seat 10 to prevent the first outer linkage 32 from contacting the first device connection seat. The relative rotation of 10 can prevent the first device connecting base 10 and the second device connecting base 20 from turning over relative to each other. In addition, when the first device connection base 10 and the second device connection base 20 are turned over to a specific position, the first friction part 321 will pass through (sink into) the first deployment positioning hole 123 or the first retraction position on the first elastic piece 12 . The positioning hole 124 is folded to limit the relative turning of the first device connection base 10 and the second device connection base 20 . In other preferred embodiments, the first friction part 321 can also rub against other positions of the first device connection base 10 to generate resistance.

The two ends of the first inner linking member 33 are respectively a first connecting end 331 and a first seat end 332, the first connecting end 331 is pivoted to the connecting member 31, and the first seat end 332 is pivoted to the first device connection seat 10; Thereby, the first device connection base 10, the connecting member 31, the first outer linkage 32 and the first inner linkage 33 jointly form a four-bar linkage mechanism; when the first outer linkage 32 and the first device connection base 10 rotate relatively , the first inner linkage member 33 will also rotate relative to the first device connection base 10 .

The first connecting end 331 of the first inner linking member 33 forms a first engaging portion 333 , and the first engaging portion 333 is preferably a tooth formed on a periphery of the first seat end 332 .

The two ends of the second inner linkage 34 are respectively a second connection end and a second seat end; the second connection end is pivotally provided with the connector 31, and the second seat end is pivotally provided with the second device connection seat 20; Two device connection bases 20, connectors 31, the second outer linkage 35 and the second inner linkage 34 jointly form a four-bar linkage; when the second outer linkage 35 rotated relative to the second device connection base 20, the second The inner link 34 will also rotate relative to the second device connection base 20 .

The second connecting end of the second inner link 34 is formed with a second engaging portion 343, and the second engaging portion 343 engages the first engaging portion 333 of the first inner link 33 to make the second inner link 34 and the first inner link move. The member 33 rotates in the opposite direction, so that the relative movement between the first device connection seat 10 and the second device connection seat 20 is symmetrical to the linkage assembly 30. In this way, the first friction part 321 of the first outer linkage member 32 will also prevent and limit the first The two inner linkages 34 rotate relative to the second device connection base 20 to more completely prevent and limit the relative inversion of the first device connection base 10 and the second device connection base 20 .

Two ends of the second outer linking member 35 are respectively pivotally provided with the connecting member 31 and the second device connecting base 20 . A second friction part 351 protrudes from the second outer link 35, and the second friction part 351 can abut against and rub against the second device connection seat 20 to prevent the first device connection seat 10 from turning over relative to the second device connection seat 20. ; Specifically, the second friction portion 351 is to rub against the second elastic piece 22 of the second device connection seat 20 to prevent overturning.

The specific connection mode between the second outer linkage member 35 and the second device connecting seat 20 is the same as the specific connection mode between the aforementioned first outer linkage member 32 and the first device connecting seat 10, that is, the second friction part 351 will also pass through ( Insert into) the second unfolding positioning hole 223 or the second retracting positioning hole 224 on the second elastic piece 22 to restrict the relative turning of the first device connecting seat 10 and the second device connecting seat 20 , and the rest of the specific details will not be repeated.

Please refer to FIG. 5 to FIG. 8, FIG. 12 and FIG. 13, the first device connection base 10 and the second device connection base 20 can be turned away from each other to an unfolded state (as shown in FIG. 5) or close to each other Turn it over to a folded state (as shown in Figure 8). In the unfolded state, the first support plate A1 and a second support plate A2 preferably jointly form a larger plane; the first device connecting seat 10 and the second device connecting seat 20 are preferably turned over 180 degrees from the unfolded state to the folded state. folded state.

Please refer to FIG. 5 and FIG. 9 , in the unfolded state, the first friction part 321 of the linkage assembly 30 passes through the first deployment positioning hole 123 of the first elastic piece 12 , while the second friction part 351 passes through the second elastic piece. The second deployment positioning hole 223 of 22 is used to limit the relative inversion of the first device connection base 10 and the second device connection base 20 .

Please refer to FIG. 8 and FIG. 11 . In the folded state, the first friction part 321 passes through the first folding positioning hole 124 of the first elastic piece 12 , while the second friction part 351 passes through the second elastic piece 22 . The second folding positioning hole 224 is used to limit the relative turning of the first device connection base 10 and the second device connection base 20 .

Please refer to FIG. 6 and FIG. 10 , when between the unfolded state and the collapsed state, the first friction part 321 abuts against and rubs against the first elastic piece 12 to generate resistance, and at the same time, the first elastic piece 12 is moderately deformed to achieve resistance. Stablize.

In other preferred embodiments, there may be only one linkage component 30 ; the first outer linkage 32 is also passed through the first cavity 111 of the main body 11 .

Other features of this creation are as follows:

First, the first friction part 321 abuts and rubs against the first elastic piece 12 of the first device connection seat 10 to generate frictional resistance. Because the first elastic piece 12 is a sheet body, it has appropriate elasticity, even if the component size or Even if there is a slight deviation in the assembly position, the resistance generated by the first friction part 321 can still be kept roughly stable, which will not cause obvious difference in the use feeling.

Second, the unfolding force and closing force of the portable electronic device A can be easily designed to be asymmetrical. The so-called deployment force refers to the force required to force the first friction part 321 to disengage from the first deployment positioning hole 123 ; the so-called closing force refers to the force required to force the first friction part 321 to disengage from the second deployment positioning hole 223 . The opening force and the closing force are determined by the aforementioned distance D1 and distance D2. In this creation, only changing the positions of the first opening positioning hole 123 and the second opening positioning hole 223, or changing the shape of the spacer 13 can achieve the distance change. Due to the effect of D1 and distance D2, it can be easily designed to be easy to unfold but not easy to close, which is more convenient to use.

To sum up, the invention protrudes and forms the first friction part 321 on the first outer link 32 of the linkage assembly 30. When the first device connection seat 10 and the second device connection seat 20 are turned over, the first friction part The part 321 can rub against the first device connecting seat 10 to generate moderate resistance to limit the relative turning of the first device connecting seat 10 and the second device connecting seat 20; that is to say, the first friction part 321 can make the link type hinge Stable resistance is generated during folding and unfolding to satisfy the use feeling and save space.

The above description is only a preferred embodiment of this creation, and does not impose any formal restrictions on this creation. Although this creation has been disclosed as above with a preferred embodiment, it is not used to limit this creation. Anyone in the technical field has Ordinary knowledgeable persons, without departing from the scope of this creative technical solution, may use the technical content disclosed above to make some changes or modify them into equivalent embodiments with equivalent changes. The technical essence of the creation Any simple modification, equivalent change and modification made to the above embodiments still belong to the scope of the technical solution of the creation.

10: The first device connection seat 11: Subject 111: the first container 12: The first shrapnel 121: fixed end 122: free end 123: The first expansion positioning hole 124: The first folding positioning hole 13: spacer 14: Elastic seam 20: Second device connection seat 21: Subject 211: Second storage tank 22: Second shrapnel 223: Second deployment positioning hole 224: The second folding positioning hole 221: fixed end 222: free end 23: Spacer 30: Linkage components 31: connector 32: The first outer linkage 321: The first friction part 33: The first inner link 331: the first connection end 332: The first seat end 333: the first engaging part 34: The second internal linkage 343: Second engaging part 35: The second outer linkage 351: Second friction part A: Portable Electronic Devices A1: The first support plate A2: Second support plate D1: distance D2: distance

Fig. 1 is the three-dimensional appearance diagram of this creation. Figure 2 is an exploded view of the three-dimensional components of this creation. Fig. 3 is an exploded view of three-dimensional components of multiple linkage components of the invention. Figure 4 is a schematic top view of this creation, in which only one of the multiple linkage components is shown. Fig. 5 to Fig. 8 are the sectional action diagrams of this creation. FIG. 9 is a schematic cross-sectional view of the present invention along the cut plane line A-A of FIG. 5 , showing that the first friction portion of the first outer linkage passes through the first deployment positioning hole of the first device connecting seat. FIG. 10 is a schematic cross-sectional view of the present invention along the section line B-B in FIG. 6 , showing that the first friction part abuts against and rubs against the first elastic piece to generate resistance, and at the same time, the first elastic piece is moderately deformed to stabilize the resistance. FIG. 11 is a schematic cross-sectional view of the present invention along the line C-C of FIG. 8 , showing that the first friction part of the first outer linkage passes through the first folding positioning hole of the connecting seat of the first device. FIG. 12 is a schematic side view of the portable electronic device of the present invention in an unfolded state. FIG. 13 is a schematic side view of the portable electronic device of the invention in a folded state.

12: The first shrapnel

123: The first expansion positioning hole

124: The first folding positioning hole

30: Linkage components

31: connector

32: The first outer linkage

321: The first friction part

33: The first inner link

331: the first connection end

332: The first seat end

333: the first engaging part

34: The second internal linkage

343: Second engaging part

35: The second outer linkage

351: Second friction part

Claims (9)

A link-type hinge, comprising a first device connection base and a second device connection base; at least one linkage component, which connects the first device connection base and the second device connection base, and connects the first device The seat and the second device connection seat can be reversed synchronously: each of the at least one linkage assembly has a connecting piece, which is elongated; a first outer linkage piece, a first inner linkage pivotally arranged on the linkage piece piece, a second inner linkage piece and a second outer linkage piece, wherein the two ends of the first outer linkage piece are respectively pivoted with the connecting piece and the first device connecting seat; a protrusion is formed on the first outer linkage piece The first friction part, the first friction part can be against and rub against the first device connection seat to prevent the first device connection seat and the second device connection seat from turning over synchronously; the two ends of the first inner linkage are respectively A first connection end and a first seat end; the first connection end pivots the connecting piece, and the first seat end pivots the first device connection seat; the two ends of the second inner linkage are respectively a first Two connection ends and a second seat end; the second connection end pivots the connecting piece, the second seat end pivots the second device connection seat; the two ends of the second outer linkage piece pivot the connecting piece respectively and the second device connecting seat. The link type hinge device as claimed in claim 1, wherein the first connecting end of the first inner link is formed with a first engaging portion; the second connecting end of the second inner link is formed with a second engaging portion portion, the second engaging portion engages with the first engaging portion of the first internal linkage to make the second internal linkage and the first internal linkage reversely rotate. The link type hinge device as described in claim 1 or 2, wherein the two ends of the second outer linkage of the at least one linkage assembly are respectively pivoted to the connecting piece and the second device connecting seat; the second outer linkage A second friction part protrudes from the moving part, and the second friction part can abut against and rub against the second device connection seat to prevent the first device connection seat and the second device connection seat from turning over synchronously. The link-type hinge device as claimed in claim 1 or 2, wherein the first device connection seat includes a main body forming a first container; at least one first elastic piece is arranged in the first container of the main body In the groove; the two ends of each of the at least one first elastic piece of the first device connection seat are respectively a fixed end and a free end, the fixed end of the at least one first elastic piece is fixed to the main body, and the at least one first elastic piece is fixed to the main body. The free end of the elastic piece extends toward the first outer link of the at least one link assembly and is adjacent to the first outer link; the first outer link of the at least one link assembly passes through the first cavity The first friction portion can abut against and rub against the at least one first elastic piece of the first device connecting seat to prevent the first device connecting seat and the second device connecting seat from turning over synchronously. The link-type hinge device as described in claim 4, wherein each of the at least one first elastic piece of the first device connecting seat is formed with a first deployment positioning hole; the first device connecting seat and the second device connecting seat Can be turned away from each other to an unfolded state; in the unfolded state, the first friction part of the at least one linkage component passes through the first unfolded positioning hole of the at least one first elastic piece to limit the first device connecting seat And the connecting seat of the second device is turned over relatively. The link type hinge device as described in claim 4, wherein each of the at least one first elastic piece of the first device connection seat is formed with a first unfolding positioning hole and a first folding positioning hole, and the first unfolding positioning The distance between the hole and the fixed end of the at least one first elastic piece is different from the distance between the first folding positioning hole and the fixed end of the at least one first elastic piece; the first device connecting seat and the second device connecting seat can be Turn away from each other to an unfolded state or turn close to each other to a folded state; in the unfolded state, the first friction part of the at least one linkage component passes through the first unfolded position of the at least one first elastic sheet hole to limit the first device connector and The second device connecting seat is turned over relatively; in the folded state, the first friction part of the at least one linkage component passes through the first folded positioning hole of the at least one first elastic piece to limit the connection of the first device The seat and the second device connection seat are turned over relative to each other. The link type hinge device as described in claim 4, wherein the number of the at least one first elastic piece is plural, and the first elastic pieces are arranged at intervals; the number of the at least one linkage component is plural, and the first piece of each linkage component An outer link can abut against and rub against one of the first elastic pieces of the first device connection base to prevent the first device connection base and the second device connection base from turning over relative to each other. The link type hinge according to claim 7, wherein a spacer is interposed between any two adjacent first elastic pieces. A portable electronic device, comprising a link-type hub according to any one of claims 1 to 8; a first support plate connected to the first device connecting seat of the link-type hub; A second support plate is connected to the second device connecting seat of the link type hinge.

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