Hinge

Abstract

A hinge comprises a base, a first rotating member, a second rotating member, and a synchronous unit. The first rotating member is arranged on the base and can rotate relative to the base around a first rotation axis between an extended position and a retracted position. The second rotating member is arranged on the base and can rotate relative to the base around a second rotation axis between an extended position and a retracted position. The synchronous unit comprises a first rack linked to the first rotating member, a second rack linked to the second rotating member, and at least one synchronous gear rotatably arranged on the base and meshed between the first rack and the second rack to make the first rack and the second rack move in opposite directions. The synchronous unit enables the first rotating member and the second rotating member to move synchronously with each other.

Description

Technical Field

[0001] The invention relates to a hinge, in particular to a hinge with synchronous motion effect. Background Art

[0002] Generally, hinges usually need to use multiple gears to achieve the synchronous movement effect, and the number of the gears may be as many as eight, so the size of such hinges is usually large. In addition, the backlash between the multiple gears will also cause the problem of idle travel during the synchronous movement. Summary of the invention

[0003] An object of the present invention is to provide a hinge that can improve at least one disadvantage of the prior art.

[0004] In some embodiments of the hinge of the present invention, it includes a base, a first rotating member, a second rotating member, and a synchronous unit. The first rotating member is arranged on the base and can rotate between an extended position and a retracted position relative to the base around a first rotation axis. The second rotating member is arranged on the base and can rotate between an extended position and a retracted position relative to the base around a second rotation axis. The synchronous unit includes a first rack connected to the first rotating member and linked with the first rotating member, a second rack connected to the second rotating member and linked with the second rotating member, and at least one synchronous gear rotatably arranged on the base and meshed between the first rack and the second rack and causing the first rack and the second rack to move in opposite directions. When the first rotating member and the second rotating member slide from the extended position to the retracted position in opposite directions relative to the base due to the reverse movement of the first rack and the second rack, the first rotating member and the second rotating member change from an extended state to a retracted state relative to the base.

[0005] In some embodiments, the first rotating axis and the second rotating axis are parallel to the front-to-back direction, the base has a first slide groove and a second slide groove extending along the left-right direction, the first rack and the second rack can be slidably disposed in the first slide groove and the second slide groove along the left-right direction, respectively, and the first rack and the second rack are each engaged with the co-moving gear in the front-to-back direction.

[0006] In some embodiments, a first guide protrusion extending along the left-right direction is provided in the first slide groove, the first rack has a first guide groove extending along the left-right direction and correspondingly matching with the first guide protrusion, and a second guide protrusion extending along the left-right direction is provided in the second slide groove, and the second rack has a second guide groove extending along the left-right direction and correspondingly matching with the second guide protrusion.

[0007] In some implementations, the base further has a gear groove connected between the first sliding groove and the second sliding groove, and the co-moving gear is rotatably disposed in the gear groove.

[0008] In some embodiments, the first rack has a first rack portion slidably disposed in the first slide groove, and a first connecting portion extending from the first rack portion toward the outside of the first slide groove, the second rack has a second rack portion slidably disposed in the second slide groove, and a second connecting portion extending from the second rack portion toward the outside of the second slide groove, and the synchronous unit also includes a first connecting rod connected between the first connecting portion and the first rotating member and extending along the front-to-back direction, and a second connecting rod connected between the second connecting portion and the second rotating member and extending along the front-to-back direction.

[0009] In some embodiments, the first connecting portion of the first rack has a first slot formed along the front-to-back direction and extending along the up-down direction, the second connecting portion of the second rack has a second slot formed along the front-to-back direction and extending along the up-down direction, the first connecting rod is disposed on the first rotating member and can be slidably inserted into the first slot of the first connecting portion along the up-down direction, and the second connecting rod is disposed on the second rotating member and can be slidably inserted into the second slot of the second connecting portion along the up-down direction.

[0010] In some embodiments, the base has a first track structure extending around the first rotation axis, and a second track structure extending around the second rotation axis. The first rotating member has a first sliding structure slidably disposed on the first track structure, and the first rotating member can rotate between the extended position and the folded position around the first rotation axis relative to the base through the cooperation between the first track structure and the first sliding structure. The second rotating member has a second sliding structure slidably disposed on the second track structure, and the second rotating member can rotate between the extended position and the folded position around the second rotation axis relative to the base through the cooperation between the second track structure and the second sliding structure.

[0011] In some embodiments, the base has two first track structures and two second track structures, the hinge includes two first rotating parts corresponding to the two first track structures, and two second rotating parts corresponding to the two second track structures, the first connecting rod is arranged between the two first rotating parts and can slide and rotatably pass through the first slot hole of the first connecting part along the up and down directions, and the second connecting rod is arranged between the two second rotating parts and can slide and rotatably pass through the second slot hole of the second connecting part along the up and down directions.

[0012] In some embodiments, the first rotation axis and the second rotation axis are parallel to the front-to-back direction, the base has a first setting groove and a second setting groove, the first rotating member is set in the first setting groove, the first track structure has two first concave rails formed along the front-to-back direction on the inner wall surface defining the first setting groove and located on both sides of the first rotating member along the front-to-back direction, the first sliding structure has two first convex strips formed along the front-to-back direction and slidably set on the two first concave rails, the second rotating member is set in the second setting groove, the second track structure has two second concave rails formed along the front-to-back direction on the inner wall surface defining the second setting groove and located on both sides of the second rotating member along the front-to-back direction, and the second sliding structure has two second convex strips formed along the front-to-back direction and slidably set on the two second concave rails.

[0013] The hinge of the present invention enables the first rotating member and the second rotating member to move synchronously with each other through the first rack connected to and interlocked with the first rotating member, the second rack connected to and interlocked with the second rotating member, and the synchronous gear meshed between the first rack and the second rack and making the first rack and the second rack move in opposite directions. In this way, the number of gears in the hinge is reduced, so as to reduce the volume of the hinge and reduce the problem of idle travel caused by gear backlash during synchronous movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Other features and effects of the present invention will be clearly presented in the embodiments with reference to the accompanying drawings, in which:

[0015] Figure 1 is a three-dimensional diagram of an embodiment of a hinge of the present invention, wherein two first rotating members and two second rotating members of the embodiment described in the diagram are respectively located in an unfolded position;

[0016] Figure 2 yes Figure 1 A stereogram of the embodiment in another viewing angle;

[0017] Figure 3 yes Figure 1 A three-dimensional exploded view of

[0018] Figure 4 yes Figure 2 A three-dimensional exploded view of

[0019] Figure 5 is a three-dimensional diagram of the embodiment, in which the two first rotating members and the two second rotating members of the embodiment are respectively located in a retracted position; and

[0020] Figure 6 yes Figure 5 A stereoscopic image of the embodiment in viewed from another perspective. DETAILED DESCRIPTION

[0021] See also Figures 1 to 4 An embodiment of the hinge 100 of the present invention includes a base 1, two first rotating members 2, two second rotating members 3, and a co-acting unit 4.

[0022] The base 1 has two first arrangement grooves 11 spaced and arranged side by side along a front-to-back direction D1, two second arrangement grooves 12 spaced and arranged side by side along the front-to-back direction D1, two first track structures 13 extending around a first rotation axis A1 parallel to the front-to-back direction D1 and respectively formed at the two first arrangement grooves 11, and two second track structures 14 extending around a second rotation axis A2 parallel to the front-to-back direction D1 and respectively formed at the two second arrangement grooves 12. The first arrangement groove 11 and the second arrangement groove 12 are spaced and arranged side by side along a left-to-right direction D2, and the first rotation axis A1 and the second rotation axis A2 are spaced and arranged side by side along the left-to-right direction D2. However, in a variant embodiment, the first arrangement groove 11 and the second arrangement groove 12 may be arranged alternately along the front-to-back direction D1, and in this case, the first rotation axis A1 and the second rotation axis A2 may overlap each other, which is not limited to this embodiment.

[0023] See also Figure 1 and Figures 3 to 5 The two first rotating members 2 are respectively disposed in the two first setting grooves 11 of the base 1, and each first rotating member 2 has a first sliding structure 21 slidably disposed on the corresponding first track structure 13. Each first track structure 13 of the base 1 has two first concave rails 131 formed along the front-to-back direction D1 on the inner wall surface defining the first setting groove 11 and located on both sides of the first rotating member 2 along the front-to-back direction D1, and the first sliding structure 21 has two first convex strips 211 formed along the front-to-back direction D1 and slidably disposed on the two first concave rails 131. Through the cooperation between the first concave rails 131 of the first track structure 13 and the first convex strips 211 of the first sliding structure 21, the two first rotating members 2 can rotate relative to the base 1 around the first rotation axis A1 between an extended position and a retracted position.

[0024] The two second rotating members 3 are respectively arranged in the two second setting grooves 12 of the base 1, and each second rotating member 3 has a second sliding structure 31 slidably arranged on the corresponding second track structure 14. Each second track structure 14 of the base 1 has two second concave rails 141 formed along the front-to-back direction D1 on the inner wall surface defining the second setting groove 12 and located on both sides of the second rotating member 3 along the front-to-back direction D1, and the second sliding structure 31 has two second convex strips 311 formed along the front-to-back direction D1 and slidably arranged on the two second concave rails 141. Through the cooperation between the second concave rails 141 of the second track structure 14 and the second convex strips 311 of the second sliding structure 31, the two second rotating members 3 can rotate relative to the base 1 around the second rotation axis A2 between an extended position and a retracted position.

[0025] It should be noted that the first rotating member 2 and the second rotating member 3 of this embodiment are rotatably matched with the base 1 by using a concave track and a convex strip, and in this embodiment, the first rotation axis A1 and the second rotation axis A2 are located above the hinge 100 along a vertical direction D3, which can reduce the thickness of the hinge 100 in the vertical direction D3 relative to another physical rotation axis (not shown) and a pivot hole (not shown), but is not limited to this. In addition, in other variations, the first track structure 13 and the second track structure 14 may also have a first convex strip 211 and a second convex strip 311, respectively, and the first sliding structure 21 and the second sliding structure 31 may also have a first concave track 131 and a second concave track 141, respectively.

[0026] See also Figure 1 , Figure 2 , Figure 4 and Figure 6The synchronous unit 4 includes a first rack 41 connected to the first rotating member 2 and linked with the first rotating member 2, a second rack 42 connected to the second rotating member 3 and linked with the second rotating member 3, two synchronous gears 43 rotatably disposed on the base 1 and meshed between the first rack 41 and the second rack 42 and causing the first rack 41 and the second rack 42 to move in opposite directions, a first linkage rod 44, and a second linkage rod 45. In this embodiment, the base 1 also has a first slide groove 15 and a second slide groove 16 formed through the vertical direction D3 and extending along a left-right direction D2, and a gear groove 17 connected between the first slide groove 15 and the second slide groove 16. A first guide ridge 151 extending along the left-right direction D2 is provided in the first slide groove 15, the first rack 41 has a first rack portion 411 slidably disposed in the first slide groove 15 and meshing with the two co-moving gears 43, and a first connecting portion 412 extending upward from the first rack portion 411 toward the outside of the first slide groove 15, the first rack portion 411 has a first guide groove 411a extending along the left-right direction D2 and correspondingly cooperating with the first guide ridge 151. A second guide convex strip 161 extending along the left-right direction D2 is provided in the second slide groove 16, the second rack 42 has a second rack portion 421 slidably disposed in the second slide groove 16 and meshing with the two co-moving gears 43, and a second connecting portion 422 extending upward from the second rack portion 421 toward the outside of the second slide groove 16, and the second rack portion 421 has a second guide groove 421a extending along the left-right direction D2 and correspondingly matched with the second guide convex strip 161. Through the corresponding matching of the first guide convex strip 151 and the first guide groove 411a and the corresponding matching of the second guide convex strip 161 and the second guide groove 421a, the first rack 41 and the second rack 42 can be slidably disposed in the first slide groove 15 and the second slide groove 16 respectively along the left-right direction D2. Furthermore, the first rack 41 and the second rack 42 are respectively meshed with the co-moving gear 43 in the front-to-rear direction D1. The arrangement of the first rack 41, the co-moving gear 43 and the second rack 42 can further reduce the thickness of the base 1 in the up-down direction D3.

[0027] The first connecting portion 412 of the first rack 41 has a first slot 412a formed through the front-to-back direction D1 and extending along the up-down direction D3. The first connecting rod 44 is extended along the front-to-back direction D1 and is arranged between the two first rotating parts 2. It can slide and rotatably pass through the first slot 412a of the first connecting portion 412 of the first rack 41 along the up-down direction D3, and is further connected between the first rack 41 and the two first rotating parts 2 so that the first rack 41 and the two first rotating parts 2 are linked to each other. The second connecting portion 422 of the second rack 42 has a second slot hole 422a formed through the front-to-back direction D1 and extending along an up-down direction D3. The second connecting rod 45 is extended along the front-to-back direction D1 and is arranged between the two second rotating members 3. It can slide and rotate through the second slot hole 422a of the second connecting portion 422 of the second rack 42 along the up-down direction D3, and is further connected between the second rack 42 and the two second rotating members 3 so that the second rack 42 and the two second rotating members 3 are linked to each other. In detail, the first slot hole 412a and the second slot hole 422a extending along the up-down direction D3 can allow the first connecting rod 44 and the second connecting rod 45 to move along the up-down direction D3 with the two first rotating parts 2 and the two second rotating parts 3, but limit the relative movement of the first connecting rod 44 and the second connecting rod 45 relative to the first rack 41 and the second rack 42 in the left-right direction D2, thereby making the first rack 41 and the first connecting rod 44 and the second rack 42 and the second connecting rod 45 move synchronously in the left-right direction D2, and further making the first rack 41 and the two first rotating parts 2 linked to each other, and making the second rack 42 and the two second rotating parts 3 linked to each other.

[0028] Two setting columns 171 are provided in the gear groove 17 of the base 1, and the two co-moving gears 43 are rotatably provided in the two setting columns 171 in the gear groove 17 and meshed between the first rack 41 and the second rack 42. The rotation of the two co-moving gears 43 can limit the first rack 41 and the second rack 42 to only move in the opposite direction, thereby enabling the two first rotating members 2 and the two second rotating members 3 respectively linked to the first rack 41 and the second rack 42 to move synchronously in opposite directions.

[0029] See also Figure 1 , Figure 2 , Figure 5 and Figure 6When the two first rotating members 2 and the two second rotating members 3 move in the opposite direction relative to the base 1 from the unfolded position (see Figure 1 ) slides to the retracted position (see Figure 5 ), the two first rotating members 2 and the two second rotating members 3 change from an expanded state to a retracted state relative to the base 1. The two first rotating members 2, for example, can be provided together in a first body (not shown), and the two second rotating members 3, for example, can be provided together in a second body (not shown), so that the first body and the second body are expanded and retracted along with the two first rotating members 2 and the two second rotating members 3. Further, the number of the first rotating members 2 and the number of the second rotating members 3 can also be only one each, not limited to the present embodiment. In addition, it should be noted that the number of the synchronous gears 43 can also be only one or more than three in other variations of the implementation. The increase in the number of the synchronous gears 43 can reduce the idle stroke condition between the first rack 41 and the second rack 42 and the synchronous gear 43 during the synchronous process.

[0030] In summary, the hinge 100 of the present invention enables the two first rotating members 2 and the two second rotating members 3 to move synchronously with each other through the first rack 41 connected to the first rotating member 2 and interlocked with the first rotating member 2, the second rack 42 connected to the second rotating member 3 and interlocked with the second rotating member 3, and the synchronous gear 43 meshed between the first rack 41 and the second rack 42 and enabling the first rack 41 and the second rack 42 to move in opposite directions. In this way, the number of gears in the hinge 100 is reduced, so as to reduce the volume of the hinge 100 and reduce the idle travel problem caused by gear backlash during the synchronous movement.

[0031] The above are merely embodiments of the present invention and should not be used to limit the scope of the present invention. That is, any simple equivalent changes and modifications made according to the claims and description of the present invention still fall within the scope of the present invention.

Claims

1. A hinge, characterized in that: The hinge comprises: Pedestal; A first rotating member, disposed on the base and capable of rotating relative to the base around a first rotation axis between an extended position and a retracted position; A second rotating member, disposed on the base and capable of rotating relative to the base around a second rotation axis between an extended position and a retracted position; as well as The synchronous unit includes a first rack linked to the first rotating member, a second rack linked to the second rotating member, and at least one synchronous gear rotatably arranged on the base and meshing between the first rack and the second rack to make the first rack and the second rack move in opposite directions. When the first rotating member and the second rotating member slide from the extended position to the retracted position in opposite directions relative to the base due to the reverse movement of the first rack and the second rack, the first rotating member and the second rotating member change from the extended state to the retracted state relative to the base. In which, the base has a first track structure extending around the first rotation axis, and a second track structure extending around the second rotation axis, the first rotating member has a first sliding structure slidably arranged on the first track structure, and the first rotating member can rotate between the extended position and the folded position around the first rotation axis relative to the base through the cooperation between the first track structure and the first sliding structure, and the second rotating member has a second sliding structure slidably arranged on the second track structure, and the second rotating member can rotate between the extended position and the folded position around the second rotation axis relative to the base through the cooperation between the second track structure and the second sliding structure.

2. The hinge according to claim 1, characterized in that: The first rotating axis and the second rotating axis are parallel to the front-to-back direction, the base has a first slide groove and a second slide groove extending in the left-right direction, the first rack and the second rack can be slidably arranged in the first slide groove and the second slide groove respectively in the left-to-right direction, and the first rack and the second rack are respectively engaged with the co-moving gear in the front-to-back direction.

3. The hinge according to claim 2, characterized in that: A first guide ridge extending along the left-right direction is provided in the first slide groove, and the first rack has a first guide groove extending along the left-right direction and correspondingly matched with the first guide ridge. A second guide ridge extending along the left-right direction is provided in the second slide groove, and the second rack has a second guide groove extending along the left-right direction and correspondingly matched with the second guide ridge.

4. The hinge according to claim 2, characterized in that: The base also has a gear groove connected between the first sliding groove and the second sliding groove, and the co-moving gear is rotatably arranged in the gear groove.

5. The hinge according to claim 4, characterized in that: The first rack has a first rack portion slidably disposed in the first slide groove, and a first connecting portion extending from the first rack portion toward the outside of the first slide groove. The second rack has a second rack portion slidably disposed in the second slide groove, and a second connecting portion extending from the second rack portion toward the outside of the second slide groove. The synchronous unit also includes a first connecting rod connected between the first connecting portion and the first rotating member and extending along the front-to-back direction, and a second connecting rod connected between the second connecting portion and the second rotating member and extending along the front-to-back direction.

6. The hinge according to claim 5, characterized in that: The first connecting portion of the first rack has a first slot hole formed along the front-to-back direction and extending along the up-down direction, the second connecting portion of the second rack has a second slot hole formed along the front-to-back direction and extending along the up-down direction, the first connecting rod is arranged on the first rotating member and can be slidably inserted into the first slot hole of the first connecting portion along the up-down direction, and the second connecting rod is arranged on the second rotating member and can be slidably inserted into the second slot hole of the second connecting portion along the up-down direction.

7. The hinge according to claim 6, characterized in that: The base has two first track structures and two second track structures, the hinge includes two first rotating parts corresponding to the two first track structures, and two second rotating parts corresponding to the two second track structures, the first connecting rod is arranged between the two first rotating parts and can slide and rotatably pass through the first slot hole of the first connecting part along the up and down directions, and the second connecting rod is arranged between the two second rotating parts and can slide and rotatably pass through the second slot hole of the second connecting part along the up and down directions.

8. The hinge according to claim 1, characterized in that: The first rotating axis and the second rotating axis are parallel to the front-to-back direction, the base has a first setting groove and a second setting groove, the first rotating member is arranged in the first setting groove, the first track structure has two first concave rails formed along the front-to-back direction on the inner wall surface defining the first setting groove and located on both sides of the first rotating member along the front-to-back direction, the first sliding structure has two first convex strips formed along the front-to-back direction and slidably arranged on the two first concave rails, the second rotating member is arranged in the second setting groove, the second track structure has two second concave rails formed along the front-to-back direction on the inner wall surface defining the second setting groove and located on both sides of the second rotating member along the front-to-back direction, and the second sliding structure has two second convex strips formed along the front-to-back direction and slidably arranged on the two second concave rails.

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