TWM540458U - Dual shaft type hinge - Google Patents

Description

Biaxial hinge

The present invention relates to a hinge, and more particularly to a biaxial hinge for a display unit of an electronic device and a keyboard input unit.

At present, there are common electronic devices that can be covered or folded in the market. In addition to the original keyboard input unit, the display unit can also perform input operations in a touch manner, and due to the change of the operation mode, the existing electronic device In addition to the original usage mode, the display unit can be flipped to 360 degrees via the structure of the two-axis hinge to overlap the back of the keyboard input unit.

The above-mentioned two-axis hinge structure can be referred to the "two-axis linkage type rotating shaft" of Taiwan New Patent Publication No. TWM508190, and the two-axis linkage structure is mainly driven by the transmission column when the first shaft drives the first rotating wheel to rotate at an angle. So that the second wheel rotates the same angle synchronously with the second shaft. However, due to its low precision and inconvenient measurement, it is not the same as the automatic control method to change the "slanting back to the official 360-degree dual-axis synchronous damping shaft" similar to the Chinese Utility Model Patent No. CN205064574U. The same mechanism.

The advantage of the above-mentioned co-moving mechanism is that it can accurately get out the required size through the computer, but the two sides of the transmission worm are clamped by the fixing piece and the pressing piece, and the two worms are axially slid to respectively position the two. On the shaft core. After it is installed in the electronic device, the structural strength of the worm is weak due to the fixing piece and the pressing piece. When the display unit and the keyboard input unit rotate relative to each other to generate a large force on the three worms, the fixing will be caused. The piece and the pressing piece are opened to offset the driving worm, or the two worms are axially slid, so that the stability of the driving worm itself and the synchronous movement with other worms cannot be improved, and the user can easily touch When the screen is on, it causes the screen to shake.

In view of this, in order to provide a structure different from the conventional technology and to improve the above-mentioned shortcomings, the creator has accumulated many years of experience and continuous research and development improvements, and this creation has not been produced.

One of the purposes of the present invention is to provide a biaxial hinge by positioning a transmission helical gear in a receiving seat having structural strength, respectively fastening two mandrels with a connecting clasp and making two cores The two helical gears on the shaft respectively mesh with the structure of the above-mentioned transmission helical gear, and the 俾 can effectively limit the position so that the double mandrels can be kept parallel to each other to avoid the skew, and the respective helical gears are activated to prevent the helical gears. The sliding is loose, and then installed in the electronic device, and when the user touches the screen, the screen can be stably fixed for convenient operation.

For the purpose of the above creation, the biaxial hinge provided by the present invention comprises a first mandrel, a second mandrel and an opposite steering mechanism. The first mandrel is juxtaposed with the second mandrel; the relative steering mechanism includes a first helical gear, a second helical gear, a third helical gear, a receiving seat and a connecting buckle. The first helical gear is coaxially disposed on the first mandrel; the second helical gear is coaxially disposed on the second spindle; the third helical gear is located between the first helical gear and the second helical gear, and is respectively coupled to the first a helical gear and a second helical gear for driving the first spindle and the second spindle to rotate in opposite directions; the receiving seat has a receiving space for positioning the third helical gear, and one side of the receiving seat has a first a positioning portion, the other end of the housing has a first shaft portion and a second shaft portion for respectively axially connecting the first shaft and the second shaft; and the connecting buckle has a a second positioning portion for connecting and positioning the first positioning portion, one end of the connecting buckle has a first fastening portion for fastening the first spindle, and the other end of the connecting buckle has a second fastening portion for fastening the Second mandrel.

In operation, the accommodating seat has a first open arc slot and a second open arc slot communicating with the accommodating space to respectively receive the first helical gear and the second helical gear; the accommodating seat further has a connection with the accommodating space. The first positioning hole and the second positioning hole, the first positioning hole and the second positioning hole are located on the same axis, and the third helical gear is axially connected by a shaft bolt, and the two ends of the shaft bolt are respectively connected to the first positioning hole and the second Positioning holes.

In implementation, one end of the shaft bolt has a bolt head for axially connecting the first positioning hole, and the bolt head gradually converges toward the opposite end of the shaft bolt, so that the bolt head forms a gasket structure to block the third helical gear One side, and the second positioning hole gradually converges from the outer side to the inner side, so that the opposite ends of the shaft bolt are pressed and deformed to be locked in the second positioning hole corresponding to the shaft, thereby positioning the third helical gear in the accommodating space Among them.

In implementation, the first positioning portion is at least one protrusion extending axially from a side of the receiving seat, and the second positioning portion is formed on the surface of the connecting buckle and corresponding to at least one perforation of the at least one protruding post .

In implementation, the above-mentioned studs are provided with at least two, and the at least two studs are arranged in a longitudinal direction and a lateral direction.

In the implementation, the first fastening portion includes a first positioning hole and a first gap that communicate with each other, and the first spindle passes through the first notch and is positioned in the first positioning hole; the second fastening portion includes the mutual connection. The second positioning hole and the second notch are disposed in the second positioning hole after the second mandrel passes through the second notch; the first notch and the second notch are located on the same side of the connecting cleat.

The first housing portion and the second shaft portion The two ends of the connecting piece are formed, and the connecting piece has a fourth positioning portion for connecting and positioning the third positioning portion.

In the implementation, the third positioning portion is at least one protrusion extending axially from one side of the seat body, and the fourth positioning portion is formed on the plate surface of the connecting piece and corresponding to the at least one perforation of the third positioning portion.

In implementation, the fourth positioning portion further includes a firmware formed on the surface of the connecting piece and communicating with one of the at least one perforating groove, and a firmware that is coupled to the positioning groove and can be integrated with the third positioning portion. . And the stud is provided with at least two, and the at least two studs are arranged in a longitudinal direction and a lateral direction.

In practice, the present invention further includes a first torsion unit, a first friction unit, a second torsion unit and a second friction unit. The first torsion unit and the first friction unit are coaxially coupled to the first mandrel, and the second The torsion unit and the second friction unit are coaxially coupled to the second mandrel; wherein the first friction unit and the second friction unit are connected to each other.

In order to facilitate a deeper understanding of this creation, it is detailed later:

The biaxial hinge of the present invention comprises an opposite steering mechanism, which is respectively connected with two first and second mandrels which are juxtaposed and rotatable relative to each other, and one end of the first mandrel is connected to a first connecting bracket The first connecting bracket is connected to the display unit of the electronic device, one end of the second spindle is connected to a second connecting bracket, and the second connecting bracket is connected to the keyboard input unit, so that when the user flips the display unit, the display unit drives the first spindle And interlocking the relative steering mechanism and the second spindle to make the display unit and the keyboard input unit at an angle.

Please refer to the first embodiment of the present invention, which includes a first mandrel 2, a first friction unit 3, a first torsion unit 4, and a second embodiment. The spindle 5, a second friction unit 6, a second torsion unit 7, and an opposite steering mechanism 8.

One end of the first mandrel 2 is connected to the first connecting bracket 21, the first connecting bracket 21 is connected to the display unit of the electronic device, and the other end of the first mandrel 2 is coupled to the first friction unit 3 and the first torsion unit 4; One end of the two spindles 5 is connected to the second connecting bracket 51, the second connecting bracket 51 is connected to the keyboard input unit, and the other end of the second spindle 5 is connected to the second friction unit 6 and the second torsion unit 7. The first torsion unit 4 and the second torsion unit 7 respectively include a plurality of axially stacked annular elastic pieces, a plurality of axially butted annular annular washers, and an end sealing nut, and further include a plurality of a connecting piece of the shaft hole, which is disposed to overlap with the washers or disposed between the elastic pieces and the washers, thereby serving as a source of rotational torque of the first mandrel 2 and the second mandrel 5; A friction unit 3 and a second friction unit 6 are connected to each other. The first friction unit 3 and the second friction unit 6 respectively include a plurality of axially stacked and notched clips, or a plurality of shafts only The connecting pieces of the holes are laminated to compensate the rotational torque of the first torsion unit 4 and the second torsion unit 7 to elastically adjust the rotational friction torque generated by the first mandrel 2 and the second mandrel 5 and have freedom The effect of stagnation.

The relative steering mechanism 8 includes a first helical gear 81 , a second helical gear 82 , a third helical gear 83 , a receiving seat 84 , and a connecting buckle 85 . The first helical gear 81 is coaxially disposed on the first spindle 2, and the first helical gear 81 can be directly mounted on the first spindle 2, or the first helical gear 81 and the first spindle 2 can be tightly coupled to each other. The second helical gear 82 is coaxially disposed on the second spindle 5, and the second helical gear 82 can be directly mounted on the second spindle 5, or the second helical gear 82 and the second spindle 5 can be They are closely matched to each other.

The accommodating seat 84 has an accommodating space 841 for accommodating the third helical gear 83. The two ends of the accommodating seat 84 have a first open arc slot 847 and a second open arc slot 848 communicating with the accommodating space 841. The first positioning gear 842 and the second positioning hole 843 are connected to the receiving space 841, and the first positioning hole 842 and the second positioning hole 842 and the second positioning hole 842 are respectively disposed on the two sides of the receiving seat 84. The positioning holes 843 are located on the same axis, and the third helical gears 83 are axially coupled by a shaft bolt 831. The two ends of the shaft bolts 831 are respectively axially connected to the first positioning holes 842 and the second positioning holes 843. One end of the shaft bolt 831 has a bolt head 832 for axially connecting the first positioning hole 842, and the bolt head 832 gradually converges toward the opposite end of the shaft bolt 831, so that the bolt head 832 forms a washer structure 833 One side of the triple helical gear 83. As shown in FIG. 3, since the first positioning hole 842 penetrates one side of the housing 84 with the same aperture, the first and second helical gears are blocked in order to prevent the bolt 832 from approaching the third helical gear 83 (81, 82). The action is solved by the washer structure 833 to solve this problem.

The second positioning hole 843 gradually converges from the outside to the inside, and the opposite ends of the shaft bolt 831 are pressed and deformed to be locked in the corresponding second positioning holes 843, so that the third helical gear 83 is positioned in the accommodating space 841. It is located between the first helical gear 81 and the second helical gear 82. The two ends of the accommodating space 841 extend through a through hole to communicate with the first and second open arc grooves (847, 848), so that the third helical gear 83 respectively meshes the first helical gear 81 and the second helical gear 82, thereby transmitting The first mandrel 2 and the second mandrel 5 are rotated in opposite directions. In addition, one side of the accommodating seat 84 axially extends out of the two laterally arranged two studs, the two studs are used as the first positioning portion 844, and the other ends of the accommodating seat 84 have the first shaft connection respectively. The first shaft portion 845 and the second shaft portion 846 each have a shaft hole for respectively axially connecting the first spindle 2 and the second spindle 5 .

The connecting clip 85 is a plate. The connecting clip 85 has two perforations on the surface of the connecting plate 85. The positions of the two perforations correspond to the positions of the two studs of the first positioning portion 844, for example, in the double center. When the shafts are shortly spaced, the corresponding two protrusions and the two perforations can be arranged in a lateral direction. The two perforations are used as the second positioning portion 851, thereby connecting and positioning the first positioning portion in the second positioning portion 851. After the portion 844, the connecting clasp 85 is brought into close proximity to one side of the receiving seat 84. When implemented, the first positioning portion 844 can also be a block extending axially from one side of the receiving seat 84 as shown in FIG. 4, and the block can be matched with the long and short spacing between the double mandrels. Lengthen its longitudinal length or lateral length. The second positioning portion 851 is formed on the side of the plate surface of the connecting clip 85 and corresponds to a gap of the position of the block, so that the connecting clip 85 can be obtained after the notch of the connecting clip 85 is engaged with the block. Guided to be positioned without tilting. In addition, as shown in FIG. 5, the first positioning portion 844 may also be two blocks extending axially from one side of the receiving seat 84, and the second positioning portion 851 is formed on the surface of the connecting buckle 85. Two notches on the two sides corresponding to the positions of the two clamping blocks can also be arranged on the side of one of the receiving seats 84 when the respective locking blocks are respectively engaged in the respective notches.

One end of the connecting clip 85 has a first fastening portion 852. The first fastening portion 852 is provided with a first positioning hole 853 and a first notch 854 that communicate with each other. The other end of the connecting buckle 85 has a second end. The fastening portion 855 and the second fastening portion 855 are provided with a second positioning hole 856 and a second notch 857 that communicate with each other. The diameter of the first positioning hole 853 is larger than the width of the first notch 854, the diameter of the second positioning hole 856 is larger than the width of the second notch 857, and the first notch 854 and the second notch 857 are located on the same side of the connecting clip 85. Thereby, when the connecting clip 85 is fastened to the first mandrel 2 and the second mandrel 5, the first mandrel 2 can be positioned in the first positioning hole 853 after passing through the first notch 854, and After the second mandrel 5 passes through the second notch 857, it is positioned in the second positioning hole 856, and then matches the first shaft portion 845 and the second shaft portion 846 at the opposite ends of the receiving seat 84 to A helical gear 81 and a second helical gear 82 are each limited to the first open arc slot 847 and the second open arc slot 848 to prevent slippage and misalignment.

Please refer to FIG. 6 and FIG. 7 , which is a second embodiment of the present biaxial hinge 1 , which is different from the first embodiment in that the receiving seat 84 includes a body 86 and a connecting piece 87 . The accommodating space 841 is formed on the base 86. One side of the seat body 86 has two protrusions extending in the axial direction opposite to the first positioning portion 844, and the two protrusions are used as the third positioning. Part 861. The first shaft joint portion 845 and the second shaft joint portion 846 are formed at two ends of the connecting piece 87. The plate surface of the connecting piece 87 has two perforations, and the positions of the two perforations and the second positioning portion 861 are convex. Corresponding to the position of the column, for example, when the distance between the double mandrels is long, the corresponding two protrusions and the two perforations can be arranged in the longitudinal direction, and the two perforations are used as the fourth positioning portion 871. Thereby, after the fourth positioning portion 871 is coupled and positioned to the third positioning portion 861, the connecting piece 87 can be adjacent to one side of the seat body 86.

In the above embodiment, the technical means for making the connecting piece 87 adjacent to one side of the base 86 can also be formed as a positioning groove 873 on the surface of the connecting piece 87 as shown in FIGS. A fastener 874 is fitted, and a through hole 872 is inserted through the connecting piece 87 and communicates with the positioning groove 873. The through hole 872, the positioning groove 873 and the sealing member 874 are combined into a fourth positioning portion 871. In practice, since the through hole 872 corresponds to the position of the third positioning portion 861, and the size of the through hole 872 is slightly longer than the longitudinal or lateral shape of the positioning groove 873, it can be made through die casting (Die -Casting) The third positioning portion 861 of the seat 86 formed after the metal powder injection molding (MIM) is not limited to being a stud or a plurality of studs, and can be passed through the through hole 872 and the sealing member 874. In combination, the base 86 and the connecting piece 87 are joined and fixed. After the third helical gear 83 and the shaft bolt 831 are mounted and positioned in the seat 86, the first spindle 2 and the second spindle 5 are respectively coupled to the first shaft joint 845 and the second shaft of the connecting piece 87. The first helical gear 81 and the second helical gear 82 are respectively engaged with the third helical gear 83, so that the first positioning portion 844 of the base 86 abuts the second connecting buckle 85 between the two spindles. The positioning portion 851 is fixed in position.

Therefore, the creation has the following advantages: 1. The creation unit positions the third helical gear in the accommodating seat, and respectively fastens the two mandrels with the connecting buckles, and then passes through one side of the accommodating seat. a positioning portion is positioned to abut the second positioning portion of the corresponding portion of the buckle to position each other to help the two helical gears on the two spindles respectively engage the third helical gear, thereby effectively limiting the three spirals The gears allow the respective helical gears to be actuated to prevent axial slippage of the helical gears, and the two spindles can be kept parallel to each other to avoid skewing, and then mounted in the electronic device, and the user touches On the screen, the screen can be held in place for easy operation. 2. The creation can split the accommodating seat into a seat body and a connecting piece for manufacturing and processing; and through the opposite sides of the axial direction of the seat body, respectively, a positioning structure is provided for each corresponding connecting piece and connecting buckle The piece can help to assemble to position. 3. The first helical gear of the present invention is coaxially fixed on the first mandrel, the second helical gear is coaxially fixed on the second mandrel, and the connecting clasp is connected to the first mandrel and the second by fastening. The mandrel, therefore, allows the first fastening portion at one end of the connecting clip to be conveniently and quickly positioned on one side of the first helical gear, and the second fastening portion at the other end of the connecting buckle is conveniently and quickly positioned in the first One side of the two helical gears to speed up assembly, thereby reducing production costs.

In summary, according to the above disclosure, this creation can achieve the intended purpose, providing a biaxial hinge that is not only easy to assemble, but also makes the operation of each helical gear element more reliable. The value of the new patent application.

1‧‧‧Biaxial hinge
2‧‧‧First mandrel
21‧‧‧First connecting bracket
3‧‧‧First friction positioning unit
4‧‧‧First torsion unit
5‧‧‧Second mandrel
51‧‧‧Second connection bracket
6‧‧‧Second friction positioning unit
7‧‧‧second torsion unit
8‧‧‧ relative steering mechanism
81‧‧‧First helical gear
82‧‧‧Second helical gear
83‧‧‧third helical gear
831‧‧‧ shaft bolt
832‧‧‧ tying head
833‧‧‧Washer structure
84‧‧‧ 容座
841‧‧‧ accommodating space
842‧‧‧First positioning hole
843‧‧‧Second positioning hole
844‧‧‧First Positioning Department
845‧‧‧First shaft joint
846‧‧‧Second shaft joint
847‧‧‧First open arc slot
848‧‧‧Second open arc slot
85‧‧‧Connecting clips
851‧‧‧Second Positioning Department
852‧‧‧First fastening
853‧‧‧First positioning hole
854‧‧‧ first gap
855‧‧‧Second Fastener
856‧‧‧Second positioning hole
857‧‧‧ second gap
86‧‧‧ body
87‧‧‧Connecting piece
861‧‧‧ Third Positioning Department
871‧‧‧Four Positioning Department
872‧‧‧Perforation
873‧‧‧ positioning groove
874‧‧‧Frequency

Fig. 1 is an exploded view of the first embodiment of the present invention. Figure 2 is a perspective view of the first embodiment of the present invention. Figure 3 is a cross-sectional view showing the first embodiment of the present invention. 4 and 5 are exploded views of the different embodiments of the receptacle and the connecting clasp of the first embodiment of the present invention. Figure 6 is a partial exploded view of the relative steering mechanism of the second embodiment of the present invention. Figure 7 is a schematic perspective view of the seat body of the second embodiment of the present invention. Figure 8 is a schematic view showing the fourth positioning portion of the connecting piece in another configuration. Figure 9 is a cross-sectional view showing the assembly of the second embodiment of the present invention.

1‧‧‧Biaxial hinge

2‧‧‧First mandrel

21‧‧‧First connecting bracket

3‧‧‧First friction unit

4‧‧‧First torsion unit

5‧‧‧Second mandrel

51‧‧‧Second connection bracket

6‧‧‧Second friction unit

7‧‧‧second torsion unit

8‧‧‧ relative steering mechanism

81‧‧‧First helical gear

82‧‧‧Second helical gear

83‧‧‧third helical gear

831‧‧‧ shaft bolt

84‧‧‧ 容座

841‧‧‧ accommodating space

842‧‧‧First positioning hole

843‧‧‧Second positioning hole

844‧‧‧First Positioning Department

845‧‧‧First shaft joint

846‧‧‧Second shaft joint

847‧‧‧First open arc slot

848‧‧‧Second open arc slot

85‧‧‧Connecting clips

851‧‧‧Second Positioning Department

852‧‧‧First fastening

853‧‧‧First positioning hole

854‧‧‧ first gap

855‧‧‧Second Fastener

856‧‧‧Second positioning hole

857‧‧‧ second gap

Claims (11)

A biaxial hinge includes: a first mandrel; a second mandrel juxtaposed with the first mandrel; and an opposite steering mechanism, comprising: a first helical gear disposed coaxially on the first a second helical gear is coaxially disposed on the second mandrel; a third helical gear is disposed between the first helical gear and the second helical gear, and respectively meshes the first helical gear a helical gear and the second helical gear for driving to rotate the first spindle and the second spindle relative to each other; a receiving seat has an accommodating space for positioning the third helical gear, One side of the accommodating seat has a first positioning portion, and the other end of the accommodating seat has a first shaft portion and a second shaft portion for respectively axially connecting the first shaft and the first shaft a second mandrel; and a connecting clip having a second positioning portion for coupling and positioning the first positioning portion, and one end of the connecting buckle has a first fastening portion for fastening the first spindle The other end of the connecting clip has a second fastening portion for fastening the second spindle. The two-axis hinge according to claim 1, wherein the receiving seat has a first open arc slot and a second open arc slot connected to the receiving space to respectively receive the first spiral a gear and the second helical gear; the receiving seat further has a first positioning hole and a second positioning hole communicating with the receiving space, wherein the first positioning hole and the second positioning hole are located on the same axis, and The third helical gear is axially coupled by a shaft bolt, and the two ends of the shaft bolt are respectively axially connected to the first positioning hole and the second positioning hole. The biaxial hinge according to claim 2, wherein one end of the shaft bolt has a bolt end for axially connecting the first positioning hole, and the bolt head gradually converges toward the opposite end of the shaft bolt. Forming a gasket structure to abut against one side of the third helical gear; the second positioning hole gradually converges from the outer side toward the inner side, and the opposite end of the shaft bolt is pressed and deformed to be engaged with the corresponding shaft And connecting the second positioning hole, so that the third helical gear is positioned in the accommodating space. The biaxial hinge according to claim 1, wherein the first positioning portion is at least one protrusion extending axially from a side of the receiving seat, and the second positioning portion is formed on the Connecting the surface of the buckle and corresponding to at least one perforation of the at least one protrusion. The biaxial hinge according to claim 4, wherein the stud is at least two, and the at least two studs are arranged in a longitudinal direction or a lateral direction. The biaxial hinge according to claim 1, wherein the first fastening portion comprises a first positioning hole and a first notch communicating with each other, after the first mandrel passes the first notch Positioning in the first positioning hole; the second fastening portion includes a second positioning hole and a second notch communicating with each other, and the second mandrel is positioned after the second notch The second notch and the second notch are located on the same side of the connecting clip. The biaxial hinge according to claim 1, 2, 4 or 6, wherein the accommodating seat comprises a body and a connecting piece, and the accommodating space is formed on the seat body, the seat body One side has a third positioning portion, and the first shaft portion and the second shaft portion form two ends of the connecting piece, the connecting piece has a fourth positioning portion for connecting and positioning the third positioning portion unit. The biaxial hinge according to claim 7, wherein the third positioning portion is at least one protrusion extending axially from a side of the seat body, and the fourth positioning portion is formed on the connection. The plate surface of the sheet and corresponding to at least one perforation of the third positioning portion. The biaxial hinge according to claim 8, wherein the fourth positioning portion further comprises a plate surface formed on the connecting piece and communicates with one of the at least one perforating groove and is fitted to the positioning groove. And a firmware that can be integrated with the third positioning portion. The biaxial hinge according to claim 8, wherein the stud is at least two, and the at least two studs are arranged in a longitudinal direction or a lateral direction. The biaxial hinge according to claim 1, further comprising a first torsion unit, a first friction unit, a second torsion unit and a second friction unit, the first torsion unit and the first The friction unit is coaxially coupled to the first mandrel, and the second torsion unit and the second friction unit are coaxially coupled to the second mandrel. The first friction unit and the second friction unit are connected to each other.