TWI626528B - Synchronizable full flip pivot - Google Patents

Abstract

The invention provides a synchronous full flip pivot device, which is applied to an electronic device. The electronic device includes a main body and an upper cover. The synchronous full flip hinge comprises: a base, a full flip mechanism, and an elastic component. , two cranks. The base comprises two circular shaft holes and a sliding slot. The circular shaft hole edge is provided with a semicircular annular channel, and the sliding slot is disposed between the two circular axial holes. The full turning mechanism comprises two transmission shafts, two connecting rods and a sliding block. The driving shaft has a positioning body at a side wall thereof, and the two driving shafts are respectively sleeved with the two circular shaft holes, and the positioning body is located In the channel, two ends of the two links are respectively connected with one of the transmission shaft and the slider, and the slider is located in the sliding slot. The elastic component is sleeved on the two transmission shafts to provide a source of resistance when the transmission shaft rotates. The two cranks are configured to be coupled to the other end of the drive shaft at one end and to be coupled to the main body or the upper cover at the other end.

Description

Synchronizable full flip pivot

The invention relates to a hinge, in particular to a hinge device which uses a link mechanism instead of a gear, and can avoid the dead point of the mechanism and can be fully flipped synchronously.

At present, the pivot of the notebook computer is mostly applied to the opening and closing of the screen and the keyboard main body. In order to achieve different application functions, the notebook computer with touch screen can form different use purposes by different pivot opening and closing angles. When the upper cover is open 0~130 degrees, it can be regarded as a general notebook computer. If you want to display it on a tablet computer, you can completely flip it, that is, the opening angle reaches 360 degrees, and it is operated by touch screen. The requirements for the pivot are much higher than usual.

The typical co-rotating shaft mechanism includes gears, cams and connecting rods. Among them, the gear has the advantage of stable torque and is also the mainstream in the market. Since the cam has difficulty in positioning relative motion, it cannot be used alone, and must be combined with other transmission mechanisms to be constructed, which is inconvenient. Although the linkage mechanism can achieve synchronous relative motion, the rotational torque is not constant, there is an unstable factor, and the stroke dead point must be properly handled to meet the requirements.

The main object of the present invention is to provide a synchronous full-flip hinge for double-axis synchronous flipping with a link transmission mechanism for an electronic device having an upper cover, which can avoid formation of a dead point and achieve an effective synchronous flip.

In order to achieve the above object, the present invention is achieved by the following technical means, wherein the synchronous full flip pivot device of the present invention is applied to an electronic device, the electronic device comprising a main body and an upper cover, the synchronous full flip The hinge includes: a base, a full turning mechanism, and two cranks. The utility model comprises two circular shaft holes and a sliding groove, wherein each of the circular shaft hole edges is provided with a semicircular annular groove, and the sliding groove is disposed between the two circular axial holes. The full reversing mechanism includes two transmission shafts, a first connecting rod, a second connecting rod and a sliding block. The driving shaft has a positioning body at a side wall thereof, and the two ends of the driving shaft respectively and the circular shape The shaft hole is sleeved, and the positioning body is located in the channel, and the two ends of the first link are respectively connected with one of the transmission shaft and the slider, and the two ends of the second link are respectively connected to the other of the transmission The shaft and the slider are combined and the slider is located in the chute. The two cranks respectively include a first end and a second end, and the first end is configured to be combined with the other end of the drive shaft, and the second end is configured to be combined with the main body or the upper cover.

In a preferred embodiment of the invention, the two drive shafts are disposed parallel to one another.

In a preferred embodiment of the invention, the full flip mechanism is used to perform a full flip motion, which refers to a flip motion from an angle of 0 degrees to 360 degrees.

In a preferred embodiment of the present invention, the synchronizable full flip pivot further includes a resilient assembly including two compression springs and two locking members, and the two compression springs respectively fit into the two bases of the drive shaft. And fixed by the lock.

In a preferred embodiment of the present invention, the end surface of the end of the transmission shaft has a positioning post, and the first connecting rod has a positioning hole at each end thereof, and the first connecting rod passes through the positioning hole and the positioning post and the positioning rod respectively The slider is sleeved.

In the preferred embodiment of the present invention, the end surface of the end of the transmission shaft has a positioning post, and the two ends of the second connecting rod respectively have a positioning hole, and the second connecting rod passes through the positioning hole and the positioning post and the positioning rod The slider is sleeved.

In the preferred embodiment of the present invention, the two channels are respectively disposed on two sides of the circular shaft hole adjacent to the sliding slot.

In a preferred embodiment of the present invention, the base includes a first connecting portion and a second connecting portion, the first connecting portion has a through hole for combined connection with the electronic device, and the second connecting portion has two The circular shaft hole and the chute.

In a preferred embodiment of the invention, the first link and the second link have the same length.

In order to achieve the above objects and effects, the technical means and constructions of the present invention are described in detail with reference to the preferred embodiments of the present invention. The features and functions are as follows, and the benefits are fully understood, but it should be noted that the contents are not It constitutes a limitation of the present invention.

Please refer to FIG. 1 , FIG. 2 and FIG. 3A , which are a schematic structural view, a perspective exploded view and a closed state diagram of a preferred embodiment of the synchronous full flip pivot device of the present invention. The synchronizable full flip pivot 1 of the present invention is applied to an electronic device. The electronic device includes at least a main body 81 and an upper cover 82. The hinge can assist the opening and closing of the main body 81 and the upper cover 82. The synchronizable full flip pivot 1 includes a base 2, a full flip mechanism 3, a resilient assembly 4 and two cranks 5.

The base 2 is a carrier that can be fixed in combination with the electronic device and can carry the remaining constituent elements of the hinge. In the preferred embodiment, the base 2 includes a first connecting portion 21 and a second connecting portion 22. The first connecting portion 21 has a through hole 211 for screwing with the electronic device. The second connecting portion 22 has two circular shaft holes 221 and a sliding slot 222, and each of the circular shaft holes 221 is provided with a semicircular annular channel 223. The chute 222 is a linear trough body and is disposed between the two circular shaft holes 221 . Preferably, the two channels 223 are respectively disposed on the side of the circular shaft hole 221 adjacent to the sliding slot 222, but are not limited thereto, and the two channels 223 may be respectively disposed on the two circular shaft holes. 221 is away from the side of the chute 222.

The full flip mechanism 3 is used to perform a full flip motion, which refers to a flip motion from an angle of 0 degrees to 360 degrees. The full turning mechanism 3 includes two drive shafts (31a, 31b), a first link 32, a second link 33, and a slider 34. The two transmission shafts (31a, 31b) are similar in structure and arranged in parallel with each other. Taking the drive shaft 31a as an example, the drive shaft 31a has a positioning body 3111 at one end of the side of the drive shaft 31a, and a positioning post 3112 is formed on the end surface of the end. It is worth mentioning that, in order to make the two transmission shafts can be synchronously opened and closed, and the full rotation movement without dead points, the positioning positions of the positioning bodies 3111 of the two transmission shafts (31a, 31b) may be slightly different. The ends of the two transmission shafts (31a, 31b) are respectively sleeved with the two circular shaft holes 221, and the positioning body 3111 is located in the channel 223. When the transmission shafts (31a, 31b) are rotated, the The positioning body 3111 moves in synchronization with the channel 223 and provides a limit function. The first link 32 and the second link 33 have the same length, and the first link 32 has a first positioning hole 321 at each end thereof, and the first link 32 passes through the first positioning holes 321 respectively. The positioning post 3112 and the slider 34 of one of the drive shafts 31a are sleeved and combined. The second connecting rod 33 has a second positioning hole 331 at each end of the second connecting rod 33. The second connecting rod 33 is respectively coupled to the positioning post 3112 of the other driving shaft 31b and the slider 34 through the second positioning holes 331. And the slider 34 is located in the sliding slot 222.

The elastic assembly 4 is configured to provide a source of resistance when the two transmission shafts (31a, 31b) are rotated, and includes two compression springs 41 and two locking members 42. The two compression springs 41 are respectively inserted into the two transmission shafts (31a, 31b). Abutting against the base 2 and fixing its position through the lock 42.

The two cranks 5 respectively include a first end 51 and a second end 52. The first end 51 is configured to be coupled to the other end of the drive shaft, and the second end 52 is configured to be coupled to the main body 81 or the upper cover 82. The second end of one of the cranks can be combined with the main body 81, and the second end of the other crank can be combined with the upper cover 82. Therefore, when the drive shafts (31a, 31b) are rotated, the main body 81 and the upper cover can be simultaneously driven. 82 for opening and closing.

In another embodiment of the present invention, the full flip mechanism 3 further includes a third link (not shown), a fourth link (not shown), and a second slider (not shown). The third link, the fourth link, and the second slider are assembled in the same manner as the first link 32, the second link 33, and the slider 34. Different from the preferred embodiment of the present invention, the sliding slot 222 can be slightly divided into an upper sliding groove portion, the slider 34 is disposed on the upper sliding groove portion for linear reciprocating motion, and the second sliding block is disposed in the sliding groove portion. Make a linear reciprocating motion. In the above manner, it is possible to avoid the problem that the other drive shaft rotates incorrectly when the drive shaft (31a or 31b) is rotated to the axis of the drive shaft, the positioning post and the slider are collinear.

With the above structure and composition design, the following is a description of the use and operation of the present invention:

Please refer to FIG. 3B and FIG. 3C , which are schematic diagrams 1 and 2 of the open state of the preferred embodiment of the synchronous full flip pivot device of the present invention. When the two cranks 5 are subjected to an external force to perform a rotational displacement motion 91, the two transmission shafts (31a, 31b) are simultaneously rotated, and the positioning body 3111 also performs a displacement movement along the channel 223, and the first A link 32 and a second link 33 are coupled by the pulling of the positioning post 3112 to cause the slider 34 to perform a reciprocating displacement motion in the sliding slot 222. By designing the length of the channel 223, the maximum opening and closing angle of the synchronous full flipping hinge 1 can be controlled. When the positioning body 3111 is displaced to the edge of the channel 223, it is the maximum value of the opening and closing angle of the hinge. In the preferred embodiment, the maximum opening and closing angle of the hinge is 360 degrees.

Please refer to FIG. 4, which is a simulated geometric relationship diagram of a preferred embodiment of the synchronous full flip pivot of the present invention. Assume that the distance between the positioning post and the axis of the end face of the drive shaft is a, the length of the first link and the second link is b, and the distance between the axes of the two drive shafts is d, then the first link and the second link The horizontal projection amount c can be as shown in formula (1):

(1)

Where θ is the rotation angle of the positioning post 3112 centered on the axis of the drive shaft.

Through the geometric relationship, it can be inferred that the vertical distance X between the axis of the two transmission shafts and the center point of the slider can be as shown in formula (2):

; (2)

That is, the vertical distance x and the rotation angle θ of the two transmission shaft axes and the center point of the slider are in a certain relationship, and the rotation directions of the two transmission shafts are opposite, which meets the requirements of the biaxial synchronous rotation of the flip type electronic device. In actual design, there are 2b>d+2a (twice the length of the first link, which needs to be greater than the distance between the axis of the two transmission shafts and the distance between the axis of the two positioning posts and the end face of the transmission shaft) Restrictions can prevent the dead point of the mechanism from affecting the drive.

Therefore, referring to all the drawings, when using the present invention, compared with the conventional technology, the following advantages are realized: (1) The present invention provides a synchronous full-flip hinge device, wherein the two transmission shafts can be synchronized and synchronized. Open and close, and can achieve the technical characteristics of 0 ° to 360 degrees full flip. (2) The synchronous full-flip hinge of the present invention has a small number of parts, low cost, and can avoid a dead point of the mechanism.

Through the above detailed description, it can fully demonstrate that the object and effect of the present invention are both progressive in implementation, highly industrially usable, and are new inventions not previously seen on the market, and fully comply with the invention patent requirements. , 提出 apply in accordance with the law. The above is only the preferred embodiment of the present invention, and is not intended to limit the scope of the embodiments and the scope of the present invention. Those skilled in the art should be able to Combinations of equivalent substitutions and obvious variations are intended to be included within the scope of the invention.

1‧‧‧Synchronized full flip pivot
2‧‧‧Base
21‧‧‧First connection
211‧‧‧through hole
22‧‧‧Second connection
221‧‧‧Circular shaft hole
222‧‧ ‧ chute
223‧‧‧ channel
3‧‧‧Full turning mechanism
31a, 31b‧‧‧ drive shaft
3111‧‧‧ Positioning body
3112‧‧‧Positioning column
32‧‧‧First Link
321‧‧‧First positioning hole
33‧‧‧second link
331‧‧‧Second positioning hole
34‧‧‧ Slider
4‧‧‧Flexible components
41‧‧‧Compression spring
42‧‧‧Locker
5‧‧‧ crank
51‧‧‧ first end
52‧‧‧ second end
81‧‧‧ Subject
82‧‧‧Upper cover
91‧‧‧Rotational displacement motion
a, d, X‧‧‧ distance
B‧‧‧ Length
C‧‧‧ horizontal projection θ‧‧‧ rotation angle

1 is a schematic structural view of a preferred embodiment of a synchronous full flip pivot of the present invention. 2 is a perspective exploded view of a preferred embodiment of a synchronous full flip pivot of the present invention. 3A is a schematic view showing the closed state of the preferred embodiment of the synchronous full flip pivot of the present invention. 3B-3C are schematic diagrams 1 and 2 of an open state of a preferred embodiment of a synchronous full flip pivot according to the present invention. 4 is a schematic geometrical relationship diagram of a preferred embodiment of a synchronizable full flip pivot of the present invention.

Claims (10)

A synchronous full flip pivot is applied to an electronic device. The electronic device includes a main body and an upper cover. The synchronous full flip hinge includes: a base including two circular shaft holes and a sliding slot, each of which The circular shaft hole edge is provided with a semicircular annular channel, the sliding slot is disposed between the two circular shaft holes; a full turning mechanism includes two transmission shafts, a first connecting rod and a second connecting rod And a slider having a positioning body at a side wall of one end of the transmission shaft, the ends of the two transmission shafts being respectively sleeved with the two circular shaft holes, and the positioning body is located in the channel, the first connection The two ends of the rod are respectively coupled with one of the transmission shaft and the slider, and the two ends of the second rod are respectively coupled with the other of the transmission shaft and the slider, and the slider is located in the sliding slot; The two cranks respectively include a first end and a second end, and the first end is configured to be combined with the other end of the drive shaft, and the second end is configured to be combined with the main body or the upper cover. The synchronizable full flip pivot device of claim 1, wherein the two transmission shafts are disposed in parallel with each other. The synchronizable full flip pivot device of claim 1, wherein the full flip mechanism is used to perform a full flip motion, and the full flip motion refers to a flip motion from an angle of 0 degrees to 360 degrees. The synchronous full-flip hinge of claim 1, wherein the synchronous full-flip hinge further comprises an elastic component, the elastic component comprises two compression springs and two locking fasteners, and the two compression springs are respectively inserted The two drive shafts abut against the base and are fixed by the lock. The synchronous full-flip pivoting device according to the first aspect of the invention, wherein the end surface of the end of the transmission shaft has a positioning post, and the first connecting rod has a positioning hole at each end thereof, and the first connecting rod transmits The positioning holes are respectively sleeved with the positioning post and the slider. The synchronous full-flip pivoting device of claim 1, wherein the end surface of the end of the transmission shaft has a positioning post, and the second connecting rod has a positioning hole at each end, and the second connecting rod transmits The positioning holes are respectively sleeved with the positioning post and the slider. The synchronizable full flip pivot device of claim 1, wherein the two channels are respectively disposed on two sides of the circular shaft hole adjacent to the sliding slot. The synchronous full-flip hinge of claim 1, wherein the two channels are respectively disposed on two sides of the circular shaft hole away from the sliding slot. The synchronizable full flip pivot device of claim 1, wherein the base includes a first connecting portion and a second connecting portion, the first connecting portion has a through hole for the electronic device In combination, the second connecting portion has two circular shaft holes and the sliding slot. The synchronizable full flip pivot device of claim 1, wherein the first link and the second link have the same length.