TWM594178U - Bi-axial hinge device - Google Patents

Abstract

A dual-axis hinge includes a first pivot, a second pivot, a gear set, and a switching wheel set. The second pivot axis is parallel to the first pivot axis. The gear set includes a first gear, a second gear, and a connecting portion parallel to the first pivot and the second pivot. The first gear is connected to the connecting portion, and the second gear is connected to the second pivot and meshes with the first gear. The switching wheel set includes a first switching wheel and a second switching wheel. The first switching wheel is connected to the first pivot and is provided with a first recess, and the second switching wheel is connected to the connecting part and is provided with a second recess. The first concave portion and the second concave portion selectively mesh with each other as the switching wheel set is driven by the gear set, so as to avoid an empty stroke during rotation.

Description

Biaxial hub

This creation is about a kind of hinge, and especially about a two-axis hinge that can reduce the pivoting empty stroke.

Generally, a mobile electronic device such as a notebook computer is generally composed of a screen and a host that can be opened and closed relative to each other, and a component for enabling the screen and the host to open and close is a hinge installed between the screen and the host. The structure of the conventional dual-axis hinge is mainly to have the first rotating shaft and the screen rotate together, and the second rotating shaft and the host rotate together. However, when this type of hinge device is opened at a large angle, or when the screen and the host are to be folded over 360 degrees, usually one of the rotation shafts is rotated to a certain angle before switching to the other rotation shaft, but this pivot There will be a problem that the empty stroke cannot be driven during the rotation.

The prior art paragraph is only used to help understand the content of the creation. Therefore, the content disclosed in the prior art paragraph may include some conventional technologies that are not known to those with ordinary knowledge in the technical field to which they belong. The content disclosed in the previous technical paragraph does not mean that the content or the problem to be solved by one or more embodiments of this creation has been known or recognized by those with ordinary knowledge in the technical field before the application for this creation.

The technical problem to be solved by the dual-axis hinge provided by this creation is that the conventional dual-axis hinge has an empty travel problem when pivoting.

This creation provides a two-axis pivot, including a first pivot, a second pivot, a gear set, and a switching wheel set. The second pivot axis is parallel to the first pivot axis. The gear set includes a first gear, a second gear, and a connecting portion parallel to the first pivot and the second pivot. The first gear is connected to the connecting portion, and the second gear is connected to the second pivot and meshes with the first gear. The switching wheel set includes a first switching wheel and a second switching wheel. The first switching wheel is connected to the first pivot and is provided with a first recess, and the second switching wheel is connected to the connecting part and is provided with a second recess. The first concave portion and the second concave portion selectively mesh with each other as the switching wheel set is driven by the gear set, so as to avoid an empty stroke during rotation.

Further, the first concave portion has a first contact surface and two first clamping edges respectively formed on opposite sides of the first contact surface. The second concave portion has a second contact surface and two second clamping edges respectively formed on opposite sides of the second contact surface. The two first clamping edges selectively contact the outer peripheral surface of the second switching wheel, the second contact surface, and the two second clamping edges as the switching wheel set is driven by the gear set; the two second clamping edges are driven by the gear set with the switching wheel set While selectively contacting the outer peripheral surface of the first switching wheel, the first contact surface and the two first clamping edges.

Further, the first contact surface is an arc surface, and the radius of curvature of the first contact surface is smaller than the radius of the first switching wheel. The second contact surface is an arc surface, and the radius of curvature of the second contact surface is smaller than the radius of the second switching wheel.

Further, the dual-axis hinge further includes a cam group adjacent to the switching wheel group. The cam set includes a plurality of cams and a plurality of elastic members. The cams and the elastic members are sleeved on the first pivot and the second pivot, respectively, so that when the cams are pressed against the elastic forces of the elastic members, the These cams keep against each other.

In an embodiment of the present creation, the first gear, the second switching wheel, and the connecting portion are each separate elements, and the connecting portion is penetrated between the first gear and the second switching wheel.

In an embodiment of the present invention, the first gear is provided with a first perforation, the second switching wheel is provided with a second perforation, the connecting portion is penetrated between the first and second perforations, and the connecting portion, the first perforation and the first The two perforations each have a non-circular cross-sectional shape corresponding to each other.

In an embodiment of the present creation, the dual-axis hinge further includes a space group disposed between the gear set and the switching wheel set. The spacer group includes a first spacer, and the first pivot, the second pivot and the connecting portion are respectively penetrated through the first spacer.

In an embodiment of the present invention, the gear set includes a first connecting member, and the first pivot passes through the first connecting member, the first spacer, and the first switching wheel. The switching wheel set includes a second connecting member, and the second pivot shaft passes through the second gear, the first spacer, and the second connecting member.

In an embodiment of the present invention, the first connecting member and the first switching wheel are separate components, and the second connecting member and the second gear are separate components.

In an embodiment of the present creation, the spacer group includes a second spacer and a third spacer. The first spacer is located between the second spacer and the third spacer, and the first pivot, the second pivot, and the connecting portion pass through the second spacer and the third spacer.

In another embodiment of the present creation, the first gear, the second switching wheel and the connecting portion are formed as an integral element, and the connecting portion is formed on the end surfaces of the first gear and the second switching wheel.

In another embodiment of the present creation, the gear set includes a first connecting member, and the first pivot passes through the first connecting member and the first switching wheel. The switching wheel set includes a second connecting member, and the second pivot shaft passes through the second gear and the second connecting member.

In another embodiment of the present creation, the first connector and the first switching wheel are formed as an integral element, and the second connector and the second gear are formed as an integral element.

In another embodiment of the present creation, the dual-axis hinge further includes a space group disposed between the gear set and the switching wheel set. The spacer group includes a second spacer and a third spacer, and the first pivot, the second pivot, and the connecting portion pass through the second spacer and the third spacer.

Based on the above, the biaxial pivot device of the present invention is provided with a gear set and a switching wheel set, and the switching wheel set is driven by the gear set to reduce the empty stroke of switching when the first pivot shaft and the second pivot shaft pivot to each other.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, the following examples are given in detail, together with the attached drawings for detailed description as follows.

The aforementioned and other technical contents, features and effects of this creation will be clearly presented in the following detailed description with reference to one embodiment of the drawings. Directional terms mentioned in the following embodiments, such as up, down, front, back, left, right, etc., are only for the directions referring to the accompanying drawings. Therefore, the terms of these directions are only for illustration, not for limiting this creation.

Please refer to FIG. 1 to FIG. 3, the first embodiment of the dual-axis pivot includes a first pivot 10, a second pivot 20 parallel to the first pivot 10, a gear set 30, a switching wheel Group 40, an interval group 50 provided between the gear group 30 and the switching wheel group 40, and a cam group 60 adjacent to the switching wheel group 40. The gear set 30 includes a first gear 31, a second gear 32 and a connecting portion 33 parallel to the first pivot 10 and the second pivot 20. The first gear 31 is connected to the connecting portion 33, and the second gear 32 is connected to the second pivot 20 and meshes with the first gear 31. The switching wheel group 40 includes a first switching wheel 41 and a second switching wheel 42. The first switching wheel 41 is connected to the first pivot 10 and is provided with a first concave portion 411. The second switching wheel 42 is connected to the connecting portion 33 and is provided with a second concave portion 421. The first concave portion 411 and the second concave portion 421 selectively mesh with each other as the switching wheel set 40 is driven by the gear set 30, so that the biaxial pivot pivots at a small angle to reduce the idle stroke of switching.

In order to enable the first concave portion 411 and the second concave portion 421 to smoothly mesh with each other, the first concave portion 411 has a first contact surface 412 and two first clamping edges 413 formed on opposite sides of the first contact surface 412 respectively. The second concave portion 421 has a second contact surface 422 and two second clamping edges 423 formed on opposite sides of the second contact surface 422 respectively. The two first clamping edges 413 selectively contact the outer peripheral surface of the second switching wheel 42, the second contact surface 422 and the two second clamping edges 423 as the switching wheel set 40 is driven by the gear set 30. The two second clamping edges 423 selectively contact the outer peripheral surface of the first switching wheel 41, the first contact surface 412 and the two first clamping edges 413 as the switching wheel set 40 is driven by the gear set 30. Further, the first contact surface 412 is an arc surface, and the radius of curvature of the first contact surface 412 is smaller than the radius of the first switching wheel 41. The second contact surface 422 is an arc surface, and the radius of curvature of the second contact surface 422 is smaller than the radius of the second switching wheel 42.

The cam group 60 includes a plurality of cams 61 and a plurality of elastic members 62. The cams 61 and the elastic members 62 are sleeved on the first pivot 10 and the second pivot 20, respectively, so that the cams 61 are subjected to the elasticity When the elastic force of the piece 62 is pressed against, the cams 61 keep against each other. Understandably, the cams 61 can move along the first pivot axis 10 and the second pivot axis 20 depending on design changes, and the elastic members 62 can provide elastic elements such as elastic pieces.

In this embodiment, each of the first gear 31, the second switching wheel 42 and the connecting portion 33 is a separate element, and the connecting portion 33 passes through the first gear 31 and the second switching wheel 42. The first gear 31 is provided with a first through hole 311, the connecting portion 33 is penetrated through the first through hole 311, the second switching wheel 42 is provided with a second through hole 424, and the connecting portion 33 is through the first through hole 311 and the second through hole 424, The connecting portion 33, the first through hole 311, and the second through hole 424 each have a non-circular cross-sectional shape corresponding to each other, such as an oval shape. The spacer group 50 includes a first spacer 51, and the first pivot 10, the second pivot 20 and the connecting portion 33 are respectively penetrated by the first spacer 51. The gear set 30 includes a first connecting member 34 through which the first pivot 10 penetrates the first connecting member 34, the first spacer 51 and the first switching wheel 41. The switching wheel set 40 includes a second connecting member 43, and the second pivot 20 penetrates the second gear 32, the first spacer 51 and the second connecting member 43. The first link 34 and the first switching wheel 41 are each separate elements, and the second link 43 and the second gear 32 are separate elements. The spacer group 50 further includes a second spacer 52 and a third spacer 53, the first spacer 51 is located between the second spacer 52 and the third spacer 53, and the first pivot 10 and the second pivot 20 and the connecting portion 33 are penetrated by the second spacer 52 and the third spacer 53.

Please refer to FIG. 4 to FIG. 11, which respectively show the action schematic diagrams of the dual-axis hinge of this embodiment, which are located at the position of 0 degrees to 360 degrees. FIGS. 4 and 5 show that the first pivot 10 and the second pivot 20 are at the initial position, that is, the 0-degree position. At this time, the first contact surface 412 of the first recess 411 of the first switching wheel 41 faces but does not contact the first The outer peripheral surface of the second switching wheel 42, and the two first clamping edges 413 abut on the outer peripheral surface of the second switching wheel 42. 6 and 7 show that the first pivot shaft 10 and the second pivot shaft 20 swing to each other to a 180-degree position. At this time, the first contact surface 412 of the first concave portion 411 of the first switching wheel 41 faces but does not contact the second The second contact surface 422 of the second concave portion 421 of the switch wheel 42 and the two first clamping edges 413 respectively abut the two second clamping edges 423. 8 and 9 show that the first pivot shaft 10 and the second pivot shaft 20 pivot to each other to a 360-degree position. At this time, the first contact surface 412 of the first recess 411 of the first switching wheel 41 does not face the second switching wheel 42. The second contact surface 422 of the second concave portion 421 of the second switching wheel 42 faces but does not contact the outer peripheral surface of the first switching wheel 41, and the two second clamping edges 423 abut against the outer periphery of the first switching wheel 41 surface. 10 and FIG. 11 show that the first pivot shaft 10 pivots at a small angle relative to the second pivot shaft 20, and drives the switching wheel set 40 through the gear set 30 so that the first concave portion 411 and the second concave portion 421 mesh with each other, and the first switching wheel Any one of the first clamping edges 413 of the first concave portion 411 of 41 can be engaged with any of the second clamping edges 423 of the second concave portion 421 of the second switching wheel 42 to reduce the idle stroke of switching.

FIG. 12 is an exploded schematic view of the second embodiment of the authoring biaxial hub. The structure of the second embodiment of the present invention is substantially the same as the first embodiment, the difference is that the first gear 31a of the gear set 30a, the connecting portion 33a, and the second switching wheel 42a of the switching wheel set 40a are formed as an integral element and connected The portion 33a is formed on the end surfaces of the first gear 31a and the second switching wheel 42a. Understandably, the connecting portion 33a may be formed in two parts, one part of which is formed on the end surface of the first gear 31a, and the other part is formed on the end surface of the second switching wheel 42a opposite to the first gear 31a. The gear set 30a includes a first connecting member 34a, the first pivot 10 is passed through the first connecting member 34a and the first switching wheel 41a, the switching wheel set 40a includes a second connecting member 43a, and the second pivot 20 is passed through In the second gear 32a and the second connecting member 43a, the first connecting member 34a and the first switching wheel 41a are formed as an integral component, and the second connecting member 43a and the second gear 32a are formed as an integrated component, thereby greatly reducing the number of parts . The spacer group 50a only includes a second spacer 52a and a third spacer 53a, and the first pivot 10, the second pivot 20 and the connecting portion 33a are penetrated by the second spacer 52a and the third spacer 53a.

Based on the above, the biaxial hub of the present invention is provided with gear sets 30, 30a and switching wheel sets 40, 40a, and the gear sets 30, 30a drive the switching wheel sets 40, 40a to make the first pivot 10 and the second When the pivot shafts 20 pivot to each other, the idle stroke of switching is reduced. In addition, the first connecting piece 34a and the first switching wheel 41a can be formed as an integrated element, and the second connecting piece 43a and the second gear 32a can be formed as an integrated element, thereby greatly reducing the number of parts and simplifying the assembly process.

However, the above are only examples of this creation, and the scope of the implementation of this creation cannot be limited by this, that is, any simple equivalent changes and modifications made in accordance with the scope of the patent application for this creation and the new description content are still It is within the scope of this creative patent. In addition, any embodiment or scope of patent application of this creation does not need to achieve all the purposes or advantages or features disclosed by the cost creation. In addition, the abstract part and title are only used to assist the search of patent documents, not to limit the scope of the rights of this creation. In addition, the terms "first" and "second" mentioned in this specification or the scope of patent application are only used to name the element or distinguish different embodiments or ranges, not to limit the number of elements. Upper or lower limit.

10: The first pivot 20: Second pivot 30, 30a: gear set 31, 31a: the first gear 311: First punch 32, 32a: second gear 33, 33a: connecting part 34, 34a: the first connector 40, 40a: switch wheel set 41, 41a: the first switching wheel 411: first recess 412: first contact surface 413: First card edge 42, 42a: Second switching wheel 421: Second recess 422: second contact surface 423: Second card edge 424: second perforation 43, 43a: second connector 50, 50a: interval group 51: First spacer 52, 52a: second spacer 53, 53a: third spacer 60, 60a: cam group 61: Cam 62: Elastic piece

FIG. 1 is a schematic view of the appearance of the first embodiment of the creative biaxial hub. FIG. 2 is an exploded schematic view of the biaxial hub shown in FIG. 1. FIG. 3 is a schematic cross-sectional view of the dual-axis hinge shown in FIG. 1. 4 and 5 are schematic diagrams of the operation of the biaxial hinge shown in FIG. 6 and 7 are schematic diagrams of the operation of the biaxial hinge shown in FIG. 8 and 9 are schematic diagrams of the operation of the dual-axis hinge shown in FIG. 10 and 11 are schematic diagrams of the operation of the biaxial hinge shown in FIG. 1, showing that the switching wheels are engaged with each other. FIG. 12 is an exploded schematic view of the second embodiment of the authoring biaxial hub.

10: The first pivot

20: Second pivot

30: Gear set

31: First gear

311: First punch

32: Second gear

33: Connection

34: First connector

40: switch wheel set

41: The first switching wheel

411: first recess

413: First card edge

42: Second switching wheel

421: Second recess

423: Second card edge

424: second perforation

43: Second connector

50: interval group

51: First spacer

52: Second spacer

53: Third spacer

60: cam group

61: Cam

62: Elastic piece

Claims (14)

A dual-axis hub includes: A first pivot; A second pivot, parallel to the first pivot; A gear set includes a first gear, a second gear, and a connecting portion parallel to the first pivot and the second pivot, the first gear is connected to the connecting portion, and the second gear is connected to the The second pivot shaft meshes with the first gear; and A switching wheel set includes a first switching wheel and a second switching wheel, the first switching wheel is connected to the first pivot and is provided with a first concave portion, and the second switching wheel is connected to the connecting portion and is provided with a A second recess, the first recess and the second recess selectively engage with each other as the switching wheel set is driven by the gear set. The dual-axis hinge according to claim 1, wherein the first concave portion has a first contact surface and two first clamping edges respectively formed on opposite sides of the first contact surface, and the second concave portion has a second The contact surface and two second clamping edges formed on opposite sides of the second contact surface respectively, the two first clamping edges selectively contact the outer peripheral surface of the second switching wheel as the switching wheel set is driven by the gear set , The second contact surface and the two second clamping edges, the two second clamping edges selectively contact the outer peripheral surface of the first switching wheel, the first contact surface, and the switching wheel set driven by the gear set The two first card edges. The biaxial hinge device according to claim 2, wherein the first contact surface is an arc surface, and the radius of curvature of the first contact surface is smaller than the radius of the first switching wheel, and the second contact surface is an arc surface, and The radius of curvature of the second contact surface is smaller than the radius of the second switching wheel. The biaxial hub according to claim 3, further comprising: a cam group adjacent to the switching wheel group, the cam group includes a plurality of cams and a plurality of elastic members, the cams and the elastic members are respectively sleeved The first pivot shaft and the second pivot shaft are arranged so that when the cams are pressed against the elastic members, the cams keep against each other. The dual-axis hinge according to any one of claims 1 to 4, wherein the first gear, the second switching wheel, and the connecting portion are each separate elements, and the connecting portion is passed through the first gear and The second switching wheel. The dual-axis hinge according to claim 5, wherein the first gear is provided with a first perforation, the second switching wheel is provided with a second perforation, and the connecting portion passes through the first perforation and the second perforation, And the connecting portion, the first through hole and the second through hole each have a non-circular cross-sectional shape corresponding to each other. The dual-axis hinge according to claim 5, further comprising: a space group disposed between the gear set and the switching wheel group, the space group includes a first spacer, and the first pivot, The second pivot and the connecting portion are respectively penetrated through the first spacer. The dual-axis hinge according to claim 7, wherein the gear set includes a first connecting member, the first pivot passing through the first connecting member, the first spacer and the first switching wheel, the The switching wheel set includes a second connecting member, the second pivot passing through the second gear, the first spacer, and the second connecting member. The dual-axis hinge according to claim 8, wherein the first connecting member and the first switching wheel are separate components, and the second connecting member and the second gear are separate components. The dual-axis hinge according to claim 7, wherein the spacer group includes a second spacer and a third spacer, the first spacer is located between the second spacer and the third spacer, and The first pivot, the second pivot, and the connecting portion pass through the second spacer and the third spacer. The dual-axis hinge according to any one of claims 1 to 4, wherein the first gear, the second switching wheel, and the connecting portion are formed as an integral element, and the connecting portion is formed on the first gear and the The end face of the second switching wheel. The dual-axis hinge according to claim 11, wherein the gear set includes a first connecting member, the first pivot is passed through the first connecting member and the first switching wheel, and the switching wheel group includes a first Two connecting parts, the second pivot is penetrated between the second gear and the second connecting part. The dual-axis hinge according to claim 12, wherein the first link and the first switching wheel are formed as an integral element, and the second link and the second gear are formed as an integral element. The dual-axis hub according to claim 11, further comprising: a spacer set between the gear set and the switching wheel set, the spacer set including a second spacer and a third spacer, and The first pivot, the second pivot, and the connecting portion pass through the second spacer and the third spacer.

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