TWI693011B - Bending support frame - Google Patents

Abstract

A bendable support frame includes a support unit, at least a concentric pivot unit, and at least a synchronous pivot unit. The support unit includes a plurality of support members extending in a first direction and arranged side by side in sequence, each support member has a support surface, and a setting surface opposite to the support surface. The supporting surfaces are arranged next to each other in sequence to be suitable for setting a flexible screen. The concentric pivot unit includes a plurality of concentric pivot groups respectively disposed between two adjacent support members, which can enable the two adjacent support members to lean against the neutral layer of the flexible screen The first axis is relative pivot of the axis. The synchronous pivoting unit includes a plurality of synchronous pivoting groups which are respectively arranged between three adjacent supporting members and enable the supporting members to synchronously pivot.

Description

Bending support frame

The invention relates to a foldable support frame, in particular to a foldable support frame provided for a flexible screen.

In recent years, the research and development of flexible screens has gradually matured, and it is more and more commonly used in general electronic products. However, when designing products, the support frame or chassis used for the flexible screen is often unable to cooperate. The circumference of the flexible screen changes when it is folded, which causes the flexible screen to be damaged by being pulled when it is bent. Therefore, the design of the support frame or the cabinet is a serious subject.

Therefore, an object of the present invention is to provide a bendable support frame that can improve at least one of the problems in the prior art.

Therefore, in some embodiments, the flexible support frame of the present invention is suitable for providing a flexible screen. The flexible support frame includes a support unit, at least a concentric pivot unit, and at least one Synchronous pivot unit. The support unit includes a plurality of support members extending in a first direction and arranged side by side in sequence, each support member has a support surface, and a setting surface opposite to the support surface, the support surfaces are sequentially arranged adjacent to each other For the flexible screen setting. The concentric pivot unit includes a plurality of concentric pivot groups respectively disposed between two adjacent support members, and each concentric pivot group includes one of the concentric pivot groups A first pivoting member on the installation surface of the support member, and a second pivoting member on the installation surface of the other support member, the first pivoting member has an arc shape formed toward the first direction A first slide rail, the second pivoting member has a second slide block formed in the first direction and slidably corresponding to the first slide rail, the center of curvature of the first slide rail is lower than that The supporting surface is away from the setting surface and leans against the neutral layer of the flexible screen in its thickness direction, so that the two adjacent supporting members can pass through the center of curvature and parallel to the first direction. One axis is the axis relative pivot. The synchronous pivot unit includes a plurality of synchronous pivot groups respectively disposed between three adjacent support members, each synchronous pivot group includes a first base provided on the installation surface of the support member in the middle, Two second bases respectively provided on the installation surface of the support on both sides, and two synchronous pivoting mechanisms provided on the first base and respectively provided on the two second bases, each synchronous pivot The rotating mechanism can be pivotally pivoted on the first base with the second axis parallel to the first direction as the axis, and can pivotally pivot with the third axis parallel to the first direction as the axis The second synchronous pivoting mechanism can be connected to each other in a relatively rolling manner, so that the support members on both sides can synchronously pivot relative to the support member in the middle. The foldable support frame can be switched between an expanded state and a collapsed state. In the expanded state, the support surfaces of the support members are sequentially adjacent to each other along a second direction perpendicular to the first direction The support planes extending along the second direction are arranged and jointly formed, and in the collapsed state, the support surfaces of the support members jointly form a support arc surface protruding outward.

In some embodiments, the second pivoting member further has an arc-shaped second sliding rail formed toward the first direction, and the first pivoting member also has a sliding direction formed toward the first direction and slidably Corresponding to a first slider protruding from the second slide rail, the first axis passes through the center of curvature of the first slide rail and the center of curvature of the second slide rail.

In some embodiments, the first slider has a cylindrical shape corresponding to the second slide rail, and the second slider has a cylindrical shape corresponding to the first slide rail.

In some embodiments, each synchronous pivoting mechanism has a synchronous pivoting member rotatably pivoted on the first base along a second axis parallel to the first direction, and slidably connected to the A synchronous pivoting member and a sliding member rotatably pivoted on a corresponding second base along a third axis parallel to the first direction, the synchronous pivoting members of the two synchronous pivoting mechanisms can be relatively rollingly connected to each other .

In some embodiments, the contact surface between the two synchronized pivoting members is a toothed surface that meshes.

In some embodiments, the two ends of the support members are respectively two support shell members, and each support shell member has an accommodating space inside, and the installation surface of the support shell member faces the accommodating space .

In some embodiments, a cover unit is further included. The cover unit includes a base and two cover plates. The base extends along the first direction and is provided on the installation surface of the support members in the middle. The base has two installation parts respectively provided on the installation surface at two adjacent sides in the first direction, and a connection connected between the two installation parts and extending in the first direction at intervals from the support Each accommodating space of the supporting shell has an opening toward the base, the cover plates are respectively slidably corresponding to the openings along the second direction, and the cover plates can be perpendicular to the The first direction is slidably pivoted on the installation portion of the base.

In some embodiments, each cover plate has a bottom plate portion opposed to the installation surfaces, and two extensions respectively extending from the two edges of the bottom plate portion in the first direction toward the installation surfaces Side panels.

In some embodiments, each setting portion of the base has two pivoting sliding grooves facing the connecting portion and corresponding to the cover plates respectively pivoted, the pivoting sliding grooves are formed along the first direction and Adjacent to the connecting portion, it extends in a direction perpendicular to the first direction, and each cover plate further has two pivots extending from the bottom plate portion and correspondingly protruding from the corresponding pivoting sliding grooves of the setting portions, respectively Connect the convex column.

In some embodiments, it further includes at least one torsion unit. The torsion unit includes a third base and two torsion bar members. The third base is disposed on the middle of the support member. One end of the torsion bar members is pivotally fitted to the third base, and the other ends are respectively slidably pivoted to the side plates of the cover plates along the second direction.

In some embodiments, at least two positioning mechanisms are further included, the positioning mechanisms are respectively provided on the supporting shells and respectively correspond to the cover plates, and each positioning mechanism includes a positioning mechanism provided on the corresponding supporting shells. The fixing member, an engaging member slidably provided on the fixing member along the first direction, and an elastic element connected between the fixing member and the engaging member, the side plate portion of each cover plate faces the first At least one first engaging groove and at least one second engaging groove corresponding to the corresponding engaging parts are formed in the direction, and in the expanded state, each engaging part is correspondingly engaged with the corresponding first engaging groove , In the folded state, each engaging piece is correspondingly engaged in the corresponding second engaging groove, and between the expanded state and the folded state, each engaging piece abuts the corresponding cover plate Of the side panel.

The present invention uses multiple concentric pivot groups provided between two adjacent support members to enable the two adjacent support members to lean against the first of the neutral layer of the flexible screen The axis is a pivot relative to the axis to prevent the bendable support frame from being between the deployed state and the collapsed state Pull the flexible screen during conversion to avoid damage to the flexible screen, and the synchronization pivot mechanism of the synchronization pivot groups enables the support members located on both sides of the three adjacent support members to be synchronized The ground pivots relative to the support members located in the middle, so that the support members can pivot synchronously.

10: Foldable support frame

1: Support unit

11: Support

110: support shell

110a: the first shell

110b: second shell

110c: accommodating space

110d: opening

111: Support surface

112: setting surface

113: Installation slot

2: Concentric pivot unit

21: Concentric pivot group

211: The first pivot

211a: the first slide

211b: First slider

212: Second pivot piece

212a: Second slider

212b: Second rail

3: Synchronous pivot unit

31: Synchronous pivot group

311: The first pedestal

312: Second base

313: Synchronous pivot mechanism

314: Synchronous pivot

314a: Toothed surface

314b: Chute

315: Slider

315a: bump

316: Shaft parts

4: Cover unit

41: Base

411: Setup Department

411a: Pivot chute

412: Connection

42: Cover

421: bottom plate

421a: Pivot post

422: Side panel

422a: pivot chute

422b: First engagement slot

422c: Second engagement slot

5: Torque unit

51: Third base

511: pivot hole

512: Rip

52: Torsion bar

521: First convex column

522: Second convex column

6: Positioning mechanism

61: fixings

62: snap fitting

621: Engagement Department

63: elastic element

20: Flexible screen

20a: Neutral layer

A1: The first axis

A2: Second axis

A3: Third axis

D1: First direction

D2: Second direction

S: line space

Other features and functions of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a perspective view of an embodiment of the bendable support frame of the present invention; FIG. 2 is an embodiment of A perspective view viewed from another perspective; FIG. 3 is a perspective exploded view of FIG. 2; FIG. 4 is a further exploded perspective view of FIG. 3; FIG. 5 is a perspective view illustrating the concentric pivoting of the concentric pivot unit of this embodiment Figure 6 is a perspective exploded view of Figure 5; Figure 7 is a cross-sectional view illustrating the state of the concentric pivot group of this embodiment when it has not been relatively pivoted; Figure 8 is a cross-sectional view illustrating the concentric pivot of this embodiment 9 is a perspective view illustrating the synchronous pivoting unit of the synchronous pivot unit of this embodiment; FIG. 10 is an exploded perspective view of FIG. 9; FIG. 11 is a cross-sectional view illustrating the embodiment FIG. 12 is a cross-sectional view illustrating the state of the synchronous pivot group of the embodiment after relative pivoting; FIG. 13 is a cross-sectional view of the embodiment in the expanded state; 14 is a cross-sectional view of the embodiment between the expanded state and the collapsed state; FIG. 15 is a cross-sectional view of the embodiment in the collapsed state; FIG. 16 is an incomplete exploded perspective view of one of the embodiments, illustrating the The cover unit, the torque unit and the positioning mechanism of the embodiment, the concentric pivot unit and the synchronous pivot unit are omitted in the figure; and FIG. 17 to FIG. 19 are multiple cross-sectional views of the process of the embodiment from the expanded state to the collapsed state, The covering unit, torsion unit and positioning mechanism of this embodiment will be described.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same numbers.

Referring to FIGS. 1 to 4, an embodiment of the foldable support frame 10 of the present invention is suitable for setting a flexible screen 20. The foldable support frame 10 includes a support unit 1 and three concentric The pivot unit 2, two synchronized pivot units 3, a cover unit 4, two torsion units 5, and four positioning mechanisms 6. It should be noted that, in other embodiments, the foldable support frame 10 may not include the covering unit 4, the torsion unit 5, and the positioning mechanism 6, which is not limited by this embodiment. .

The support unit 1 includes a plurality of support members 11 extending in a first direction D1 and arranged side by side in sequence, and the support members may be, for example, plastic parts or metal parts. Each supporting member 11 has a supporting surface 111 and a setting surface 112 opposite to the supporting surface 111. The supporting surfaces 111 are sequentially arranged next to each other for the flexible screen 20 to be installed. In this embodiment, the support members 11 at the two ends are respectively two support shell members 110 extending in a second direction D2 perpendicular to the first direction D1, each supporting The casing 110 has a first casing 110a and a second casing 110b assembled together, and an accommodating space 110c defined by the first casing 110a and the second casing 110b and located inside, the volume The housing space 110c can accommodate a plurality of electronic components (not shown) and other related parts (not shown) electrically connected to the flexible screen 20. The support surface 111 and the installation surface 112 of the support shell 110 are located in the first housing 110 a, and the installation surface 112 of the support shell 110 faces the accommodating space 110 c. Each supporting member 11 further has a mounting groove 113 for accommodating the flexible screen 20, and the supporting surfaces 111 are respectively located at the bottom of the mounting grooves 113. It should be noted that although the number of the support members 11 is seven in this embodiment, the number of the support members 11 can be adjusted according to demand, and is not limited to this.

Referring to FIGS. 4 to 8, the concentric pivot units 2 are spaced apart from the support members 11 along the first direction D1, and each concentric pivot unit 2 includes two support members 11 that are respectively disposed adjacent to each other Between multiple concentric pivot groups 21. Each concentric pivot group 21 includes a first pivot member 211 disposed on the installation surface 112 of one of the support members 11 and a second pivot member 212 disposed on the installation surface 112 of the other support member 11. The first pivoting member 211 and the second pivoting member 212 may be metal members, for example. The first pivoting member 211 has an arc-shaped first sliding rail 211a formed toward the first direction D1, and the second pivoting member 212 has a sliding direction corresponding to the first direction D1 and slidably protrudes from A second slider 212a of the first slide rail 211a, the center of curvature of the first slide rail 211a is farther from the supporting surface 111 than the setting surface 112 and leans on the flexible screen 20 in its thickness direction Of the neutral layer 20a, so that the two adjacent support members 11 can relatively pivot about the first axis A1 passing through the center of curvature and parallel to the first direction D1. In detail, in this embodiment, the center of curvature of the first slide rail 211a and the first axis A1 coincide with the neutral layer 20a, but in a variant embodiment, the center of curvature of the first slide rail 211a And the first axis A1 is biased against the neutral layer 20a but does not coincide with the neutral layer 20a, that is, the center of curvature of the first slide rail 211a and the position of the first axis A1 can be in accordance with The design requirements are adjusted slightly, and are not limited to this embodiment. In this embodiment, the second pivoting member 212 also has an arc-shaped second sliding rail 212b formed toward the first direction D1, and the first pivoting member 211 also has a forming toward the first direction D1 A first slider 211b protruding from the second slide rail 212b is slidably corresponding to the first axis A1 through the center of curvature of the first slide rail 211a and the center of curvature of the second slide rail 212b. And the first slider 211b has a cylindrical shape corresponding to the second slide rail 212b, and the second slider 212a has a cylindrical shape corresponding to the first slide rail 211a. Moreover, both the first pivoting member 211 and the second pivoting member 212 are composed of a plurality of stamping pieces, and the first slider 211b and the second slider 212a are in the form of a rotating shaft member and are disposed through The first pivoting member 211 and the second pivoting member 212, the first pivoting member 211 and the second pivoting member 212 made of stamped sheet not only have high accuracy, but also can save production costs, but not This is a limitation. It should be noted that in a modified embodiment, the second slide rail 212b and the first slider 211b may also be omitted. In this modified embodiment, the structure of the second slide 212a and the first slide rail The structure of 211a corresponds, that is to say, the shape of the second slider 212a needs to match the unevenness of the first slide rail 211a to prevent the second slider 212a from sliding relative to the first slide rail 211a Turning situation.

Referring to FIGS. 4, 9 to 12, the synchronous pivot units 3 are spaced apart from the support members 11 along the first direction D1 and are respectively located between adjacent concentric pivot units 2, and the Between the synchronous pivoting unit 3 and the concentric pivoting unit 2 in the middle there are two wire-passing spaces S for the connecting wires (not shown) between the electronic components mentioned above, but the concentric pivoting The arrangement of the unit 2 and the synchronous pivot units 3 can be changed according to requirements. And, although in this embodiment, the concentric pivot The number of the rotating units 2 is three and the number of the synchronous pivoting units 3 is two, but the number of the above two only needs to be at least one and the number can be adjusted according to requirements, not limited to this embodiment. Each synchronous pivot unit 3 includes a plurality of synchronous pivot groups 31 respectively disposed between three adjacent support members 11, and each synchronous pivot group 31 includes a setting surface 112 disposed on the support member 11 located in the middle A first base 311, two second bases 312 respectively disposed on the installation surface 112 of the support members 11 on both sides, and the first base 311 respectively disposed on the two second bases Two synchronous pivoting mechanisms 313 of 312, each synchronous pivoting mechanism 313 can be pivotally mounted on the first base 311 with the second axis A2 parallel to the first direction D1 as the axis, and can be parallel The third axis A3 in the first direction D1 is pivotally pivoted on the corresponding second base 312, and the two synchronous pivoting mechanisms 313 can be connected to each other in a rolling manner so that the support members 11 on both sides It can pivot synchronously with respect to the support 11 located in the middle. In detail, each synchronous pivot mechanism 313 has a synchronous pivot member 314 rotatably pivoted on the first base 311 along a second axis A2 parallel to the first direction D1, and slidably connected The synchronous pivoting member 314 is rotatably pivoted on a corresponding sliding member 315 of the second base 312 along a third axis A3 parallel to the first direction D1. The synchronizing pivot members 314 of the two synchronizing pivot mechanisms 313 can be connected to each other in a relatively rolling manner, and the contact surface between the two synchronizing pivot members 314 is an intermeshing tooth surface 314a. In this embodiment, the synchronous pivoting member 314 has a sliding slot 314b extending along the second direction D2, and the sliding member 315 has a protrusion 315a slidably protruding from the sliding slot 314b, thereby The synchronous pivoting member 314 and the sliding member 315 are relatively slidably connected to each other. In a variant embodiment, the sliding groove 314b is formed on the sliding member 315, and the protrusion 315a is formed on the synchronous pivoting member 314. Each synchronization pivot group 31 further includes a plurality of rotations interposed between the first base 311 and the synchronization pivot 314, and between the second base 312 and the slider 315 The shaft member 316 allows the above-mentioned members to be pivotally connected to each other, but not limited to this. The above-mentioned synchronous pivoting units 3 have a small space ratio, and the structure is simple and reliable. In addition, it should be noted that the concentric pivot unit 2 and the synchronous pivot units 3 can be worn on the support members 11 and fixed by welding or gluing as in this embodiment, in a variant embodiment In this case, it may be fixed to the supporting members 11 via a screw lock method or other fixing methods.

Referring to FIGS. 4, 13 to 15, the concentric pivoting unit 2 and the synchronous pivoting units 3 enable the bendable support frame 10 to switch between an expanded state and a collapsed state (See Figures 13 to 15). In the unfolded state, the supporting surfaces 111 of the supporting members 11 are sequentially arranged adjacent to the second direction D2 and jointly form a supporting plane extending in the second direction D2. In the collapsed state, the The supporting surfaces 111 of the supporting member 11 jointly form a supporting arc surface protruding outward, and in this embodiment, in the collapsed state, the supporting shell members 110 are parallel to each other and abut against each other. With reference to FIGS. 8 and 12, by means of a plurality of concentric pivot groups 21 respectively disposed between two adjacent support members 11, the two adjacent support members 11 can be biased against the flexible The first axis A1 of the neutral layer 20a of the screen 20 is relatively pivoted to prevent the flexible support 10 from pulling the flexible screen when switching between the expanded state and the collapsed state 20, to prevent the flexible screen 20 from being damaged as a result, and by the synchronization pivot mechanism 313 of the synchronization pivot groups 31, the support members 11 on the two sides of the three adjacent support members 11 can be synchronously opposed to each other The supporting member 11 in the middle pivots, so that the supporting members 11 can pivot synchronously. It should be noted that the support surfaces 111 of the support members 11 are all flat in this embodiment. Therefore, in the collapsed state, the support arc surfaces formed by the support surfaces 111 of the support members 11 are substantially The upper part is composed of a plurality of planes, but in a variant embodiment, the supporting surface 111 of the supporting member 11 is also It can be a curved surface, and should not be limited to this embodiment.

3, 16 to 19, the cover unit 4 includes a base 41, and two cover plates 42, the base 41 extends along the first direction D1 and is disposed in the middle of the support member 11面112. The base 41 has two installation portions 411 respectively provided on the installation surface 112 at two sides adjacent to the first direction D1 in a semicircular plate shape, and connected between the two installation portions 411 and connected to the A connecting portion 412 of the supporting member 11 extending in the first direction D1 at intervals. The arc edges of the setting portions 411 face the setting surface 112 of the supporting member 11 so that the bendable supporting frame 10 is retracted In the closed state, the installation surfaces 112 of the supporting members 11 can abut against the arc edges of the installation portions 411. The accommodating space 110c of each supporting shell member 110 has an opening 110d facing the base 41 and through which the connecting wires (not shown) between the electronic components mentioned above pass, and the cover plates 42 can respectively extend along the second The direction D2 slidably corresponds to the openings 110d, and the cover plates 42 are slidably pivoted on the installation portion 411 of the base 41 in a direction perpendicular to the first direction D1. Each cover plate 42 has a bottom plate portion 421 opposite to the installation surfaces 112, and respectively extends from two sides of the bottom plate portion 421 in the first direction D1 toward the installation surfaces 112 and abuts against the installation surfaces 112. The two side plate portions 422 of the installation surface 112 are described. The base 41 and the cover plates 42 can cover the concentric pivoting unit 2, the synchronous pivoting unit 3, the connecting wires or other internal components between the aforementioned electronic components (see FIG. 4), to Optimize visual aesthetics. In more detail, each setting portion 411 of the base 41 has two pivoting sliding grooves 411a facing the connecting portion 412 and corresponding to the cover plates 42 respectively, the pivoting sliding grooves 411a along the first A direction D1 is formed and extends adjacent to the connecting portion 412 in a direction perpendicular to the first direction D1. Each cover plate 42 further has a portion extending from the bottom plate portion 421 and correspondingly protruding from the setting portions 411 The two pivoting protrusions 421a of the corresponding pivotal sliding groove 411a are The pivotal sliding grooves 411a extending by the connecting portion 412 make the bendable support frame 10 switch between the expanded state and the collapsed state, and the cover plates 42 are respectively opposite to the support shells When the member 110 slides along the second direction D2, the end edge of the bottom plate portion 421 of the cover plate 42 adjacent to the connecting portion 412 can slide close to the connecting portion 412 to cover the concentric pivoting unit 2 more effectively , The synchronous pivot unit 3, the connecting wire or other internal components between the aforementioned electronic components. Although, in the present embodiment, the pivotal sliding grooves 411a are inclined from the side of the mounting portion 411 away from the mounting surfaces 112 and extend opposite to each other toward the mounting surfaces 112, and the pivots The angle between the extending direction of the connecting slot 411a and the second direction D2 is 45 degrees, but the extending direction of the pivoting slot 411a and the above-mentioned angle can follow the movement of the pivoting protrusion 421a of the cover plate 42 The adjustment of the trajectory is not limited to this embodiment.

Referring to FIG. 3, FIG. 16 to FIG. 19, the torsion units 5 are provided in the support members 11 in the middle and adjacent to the installation portions 411 of the base 41, respectively. Each torsion unit 5 includes a third base 51 and two torsion bars 52, wherein the third base 51 is composed of a plurality of stamping pieces, but not limited to this. The third base 51 is disposed on the middle installation surface 112 of the support members 11. One end of the torsion bar members 52 is pivotally mounted on the third base 51 in close fit, and the other ends can be along the The second direction D2 is pivotally disposed on the side plate portions 422 of the cover plates 42. In detail, the third base 51 is formed with two pivot holes 511 corresponding to the torsion bar members 52 respectively, and each side plate portion 422 of each cover 42 is formed with a corresponding torsion bar member 52 and A pivot slide 422a extending along the second direction D2, each torsion bar 52 has a first protrusion 521 located at one end of the pivot hole 511 through the corresponding pivot hole 510 A second convex post 522 at one end is slidably and rotatably threaded through the corresponding pivoting sliding groove 422a. When the foldable support 10 is in the expanded state and the collapsed state, During the time conversion, the cover plates 42 are driven by the support shells 110 to pivot relative to the mounting portion 411 of the base 41, so as to drive the torsion bar 52 of the torsion unit 5 relative to the third base 51 pivots, because the first protrusion 521 of the torsion bar 52 fits tightly through the pivot hole 511 of the third base 51, so the connection between the two is at the torsion bar 52 pivot When rotating, a torsion force that prevents the torsion bar 52 from pivoting is generated, and the torsion force is transmitted to the support shells 110 through the cover plates 42 respectively, so that the bendable support frame 10 can be positioned in steps Any state between the expanded state and the collapsed state. It should be noted that in other variations, the number of torque units 5 may be one or more than three, which is not limited. In addition, in the present embodiment, each third base 51 is further formed with a split 512 communicating between the pivot holes 511, and the third base 51 is more easily elastically deformed by the split 512. Therefore, the first protrusion 521 of the torsion bar 52 can be easily installed in the pivot holes 511.

16-19, the positioning mechanisms 6 are respectively provided in groups on the support shells 110, and the positioning mechanisms 6 respectively correspond to the side plate portions 422 of the cover plates 42. Each positioning mechanism 6 includes a fixing member 61 provided on the installation surface 112 of the corresponding supporting shell member 110, an engaging member 62 slidably provided on the fixing member 61 along the first direction D1, and connected to the An elastic element 63 between the fixing element 61 and the engaging element 62, the engaging element 62 and the elastic element 63 are disposed inside the fixing element 61, and the engaging element 62 has a side facing the corresponding side plate portion 422 The engaging portion 621 is pushed up by the elastic element 63 so that the engaging portion 621 protrudes from the fixing member 61. Each side plate portion 422 of each cover plate 42 is formed with a first engaging groove 422b and a second engaging groove 422c corresponding to the engaging portion 621 of the corresponding engaging member 62 toward the first direction D1, In the expanded state, the engaging portion of each engaging member 62 621 is correspondingly engaged with the corresponding first engaging groove 422b. In the folded state, the engaging portion 621 of each engaging piece 62 is correspondingly engaged with the corresponding second engaging groove 422c. When in the expanded state Between this folded state, the engaging portion 621 of each engaging piece 62 abuts the portion of the side plate portion 422 of the corresponding cover 42 between the first engaging groove 422b and the second engaging groove 422c. In this way, the positioning and locking force of the foldable support frame 10 in the expanded state and the collapsed state is strengthened to facilitate user operation. It should be noted that, in a modified embodiment, the number of positioning mechanisms 6 may be only two, which is not limited to this embodiment.

In summary, the present invention uses a plurality of concentric pivot groups 21 provided between two adjacent support members 11 to enable the two adjacent support members 11 to lean against the flexible type The first axis A1 of the neutral layer 20a of the screen 20 pivots relative to the axis to prevent the bendable support frame 10 from pulling the flexible screen 20 when switching between the expanded state and the collapsed state To prevent the flexible screen 20 from being damaged, and the synchronization pivot mechanism 313 of the synchronization pivot groups 31 enables the support members 11 located on both sides of the three adjacent support members 11 to be synchronized with respect to each other The support members 11 located in the middle pivot, so that the support members 11 can pivot synchronously.

However, the above are only examples of the present invention, and should not be used to limit the scope of the present invention. Any simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still classified as This invention covers the patent.

10: Foldable support frame

1: Support unit

11: Support

110: support shell

110a: the first shell

112: setting surface

2: Concentric pivot unit

21: Concentric pivot group

3: Synchronous pivot unit

31: Synchronous pivot group

4: Cover unit

41: Base

411: Setup Department

411a: Pivot chute

412: Connection

42: Cover

421: bottom plate

421a: Pivot post

422: Side panel

422a: pivot chute

422b: First engagement slot

422c: Second engagement slot

5: Torque unit

51: Third base

52: Torsion bar

522: Second convex column

6: Positioning mechanism

61: fixings

62: snap fitting

621: Engagement Department

D1: First direction

D2: Second direction

S: line space

Claims (11)

A bendable support frame is suitable for setting a flexible screen. The bendable support frame includes: A support unit includes a plurality of support members extending in a first direction and arranged side by side in sequence, each support member has a support surface, and a setting surface opposite to the support surface, the support surfaces are sequentially adjacent to each other Arrange for the flexible screen setting; At least the concentric pivot unit includes a plurality of concentric pivot groups respectively disposed between two adjacent support members, and each concentric pivot group includes a first pivot member disposed on the installation surface of one of the support members And a second pivoting member provided on the installation surface of the other supporting member, the first pivoting member has a first sliding rail formed in the first direction and curved, the second pivoting member The member has a second slider formed in the first direction and slidably corresponding to the first slide rail, the center of curvature of the first slide rail is farther from the supporting surface than the support surface and is biased A neutral layer in the thickness direction of the flexible screen, so that two adjacent support members can pivot relative to each other about a first axis passing through the center of curvature and parallel to the first direction; and At least one synchronous pivot unit, including a plurality of synchronous pivot groups respectively disposed between three adjacent support members, each synchronous pivot group includes a first base disposed on the installation surface of the support member located in the middle A base, two second bases respectively provided on the installation surfaces of the supporting members on both sides, and two synchronous pivoting mechanisms provided on the first base and respectively provided on the two second bases, each The synchronous pivoting mechanism can pivotally rotate on the first base with a second axis parallel to the first direction as the axis, and can pivotally pivot with a third axis parallel to the first direction as the axis For the corresponding second base, the two synchronous pivoting mechanisms can be connected to each other in a relatively rolling manner, so that the support members on both sides can synchronously pivot relative to the support member in the middle The foldable support frame can be switched between an expanded state and a collapsed state. In the expanded state, the support surfaces of the support members are sequentially adjacent to each other along a second direction perpendicular to the first direction The support planes extending along the second direction are arranged and jointly formed, and in the collapsed state, the support surfaces of the support members jointly form a support arc surface protruding outward. The bendable support frame according to claim 1, wherein the second pivoting member further has a second sliding rail formed in the first direction and curved, and the first pivoting member further has a The first direction is formed to slidably correspond to a first slider protruding from the second slide rail, and the first axis passes through the center of curvature of the first slide rail and the center of curvature of the second slide rail. The bendable support frame according to claim 2, wherein the first slider has a cylindrical shape corresponding to the second slide rail, and the second slider has a cylindrical shape corresponding to the first slide rail. The foldable support frame according to claim 1, wherein each synchronous pivot mechanism has a synchronous pivot rotatably pivoted on the first base along a second axis parallel to the first direction And a sliding member that is slidably connected to the synchronous pivoting member and can be pivotally mounted on the corresponding second base along a third axis parallel to the first direction, the synchronization of the two synchronous pivoting mechanisms The pivot members can be connected to each other in a relatively rolling manner. The bendable support frame according to claim 4, wherein the contact surface between the two synchronous pivoting members is a toothed surface that meshes. The bendable support frame as described in any one of claims 1 to 5, wherein the support members at the two ends are respectively two support shell members, and each support shell member has a The installation space, the installation surface of the supporting shell member faces the accommodation space. The foldable support frame according to claim 6, further comprising a cover unit, the cover unit includes a base, and two cover plates, the base extends along the first direction and is located in the support members The installation surface of the middle, the base has two installation portions respectively provided on the installation surface at two adjacent sides in the first direction, and is connected between the two installation portions and spaced apart from the support A connecting portion extending in the first direction, the accommodating space of each supporting shell has an opening toward the base, the cover plates are respectively slidably corresponding to the openings in the second direction, and the The cover is slidably pivoted on the installation portion of the base in a direction perpendicular to the first direction. The bendable support frame according to claim 7, wherein each cover plate has a bottom plate portion opposed to the installation surfaces, and the edges of the bottom plate portion in the first direction The two side plate portions extending from these installation surfaces. The foldable support frame according to claim 8, wherein each setting portion of the base has two pivoting sliding grooves facing the connecting portion and corresponding to the cover plates for pivoting respectively, the pivoting The chute is formed along the first direction and extends adjacent to the connecting portion in a direction perpendicular to the first direction, and each cover plate further has a correspondence extending from the bottom plate portion and correspondingly protruding from the setting portions, respectively The two pivotally connected lugs of the pivot slot of The bendable support frame according to claim 8, further comprising at least one torsion unit, the torsion unit includes a third base, and two torsion bar members, the third base is disposed in the support members Located on the installation surface of the middle, one end of the torsion bars is pivotally fitted to the third base, and the other end is respectively pivotally mounted to the side plates of the cover plates in the second direction. The bendable support frame according to claim 10, further comprising at least two positioning mechanisms, the positioning mechanisms are respectively provided on the support shells and correspond to the cover plates, and each positioning mechanism includes a A fixing member corresponding to the supporting shell member, an engaging member slidably provided on the fixing member along the first direction, and an elastic element connected between the fixing member and the engaging member, each cover plate At least one first engaging groove and at least one second engaging groove corresponding to the corresponding engaging member are formed on the side plate portion of the side, and each engaging member correspondingly engages in the expanded state Corresponding first engaging groove, in the closed state, each engaging piece correspondingly engages in the corresponding second engaging groove, and between the expanded state and the closed state, each engaging piece Against the side plate portion of the corresponding cover plate.

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