TWM519690U - Screw and axis moving together for biaxial pivot device - Google Patents

Description

Screw shaft synchronous double shaft pivot

The present invention relates to a screw shaft-spinning dual-axis pivoting device, in particular to a two-axis co-rotating pivoting device, which integrally forms a concave spiral portion in a double shaft for a slider to be connected to the axis in a manner closer to the axis The shaft reduces the longitudinal height of the entire pivot and increases drive stability.

A mobile electronic device such as a notebook computer basically consists of a display end and a system end that can be opened or closed relative to each other, and the components for enabling the display end and the system end to be opened and closed are mainly mounted on the display end and the host system. The pivot between the ends, the modern such electronic device can be operated through a two-axis co-rotating pivot so that the upper cover display screen can be positioned at various angles. In modern times, such electronic devices can further make the display end and the system end bend at a large angle such as 360° to form a flat deformation shape.

In the early days, the structure of such a biaxial pivot mainly had a first rotating shaft rotating together with the display end, and a second rotating shaft rotating together with the system end. However, in the existing multi-axis pivoting device, when opening a large angle, or when the display end and the system end are folded 360° in an overlapping state, usually one of the axes is first rotated to a specific angle, and then switched to The other axis rotates, except that the synchronous folding mechanism of the entire display end and the system end is quite complicated, and the manufacturing and assembly are troublesome and costly.

In modern times, such double-axis pivoting devices are mostly set as two-axis synchronous structures. The most common way is to provide an intermediate gear between the first rotating shaft and the second rotating shaft as described above. When the upper and lower ends respectively engage the first rotating shaft and the second rotating shaft to rotate one of the first rotating shaft and the second rotating shaft, the double shaft can generate the interlocking function through the intermediate gear.

However, the use of the two-axis synchronizing mechanism as described above may give rise to some disadvantages. For example, since the first rotating shaft and the second rotating shaft described above must be provided with a peripheral gear to engage the upper and lower ends of the intermediate gear, the entire pivot is made. The vertical height of the device is increased. Due to the increasingly thinner manufacturing trend of mobile electronic devices such as modern notebook computers, such structural design cannot be reduced due to the vertical height, which may cause problems in thin electronic devices; The use of the external gear and the intermediate gear in the shaft to drive the transmission mode is also less stable in the two-axis same motion effect. In addition, since such biaxial co-rotating pivots must take into account the use of the associated torsion members for deflection to different angles, there are usually many torsion pads and concave cam structures on the shaft, not only in the finished product. The number of parts is large, and the axial length after assembly is relatively increased.

The purpose of the present invention is to provide a screw-axis coaxial double-axis pivoting device, which can effectively reduce the longitudinal height of the entire two-axis synchronous pivoting device, and is more advantageous for the thin design trend of such a pivoting device.

Another object of the present invention is to provide a screw-axis coaxial double-axis pivoting device which can produce a more stable dual-axis synchronous function.

A further object of the present invention is to provide a screw-axis coaxial double-axis pivoting device, which can effectively reduce the number of finished parts.

To achieve the above objective, the present invention includes: a first pivot shaft and a second pivot shaft opposite to the first pivot shaft, wherein the first pivot shaft and the second pivot shaft are respectively disposed at one side of the shaft body An extension rod for assembling the fixing piece; the first pivot and The second pivot shaft body is respectively provided with an opposite spiral body portion and a reduced diameter shaft portion extending toward the other side end, and the first pivot shaft and the second pivot shaft are positioned by a buckle bracket; The spiral shaft segments are respectively provided with concave spiral portions integrally formed by the rod body, and the concave concave portions are respectively recessed by a set diameter of the outer peripheral surface of the first pivot shaft and the second pivot shaft toward the inner central shaft Forming opposite inner spirals respectively to the distances, so that the opposite inner spirals respectively form a smaller diameter shaft portion in the spiral shaft portion; and a slider which is disposed in the first step by a reciprocating displacement structure Between the pivot and the second pivot, the slider is provided with a central hole and is respectively provided with an upper spiral segment and a lower spiral segment at the upper and lower ends, and the upper spiral segment and the lower spiral segment are respectively provided with the above-mentioned auger The upper concave arc and the lower concave arc of the shaft portion of the smaller diameter body are formed, and the adjacent positions of the upper concave arc and the lower concave arc are respectively provided with upper and outer diameters corresponding to the outer diameter of the spiral shaft portion a concave arc and a lower concave arc, which are made up according to the above slider The concave arc and the lower concave arc are respectively connected to the partial concave spiral length of the concave spiral portion of the shaft portion of the spiral shaft body, and the upper outer concave arc and the lower outer concave arc are respectively engaged with the An outer peripheral surface of the shaft of the auger body; the reduced diameter shaft of the first pivot and the second pivot assembly two brackets of a set distance, and a torque positioning mechanism is disposed between the brackets; When any one of the pivot and the second pivot rotates, the slider is synchronously reciprocated, and the other pivot is interlocked during the reciprocating movement of the slider, since the slider is the upper concave arc of the upper spiral segment and the lower spiral segment And the lower concave arc is respectively connected to the concave spiral of the inner concave spiral portion integrally formed on the shaft of the spiral shaft body, so that the longitudinal height of the entire pivot can be effectively reduced, which is favorable for the thin design; Since the slider is driven closer to the axis, a more stable dual-axis simultaneous action can be produced.

In a possible embodiment, the torque positioning mechanism is disposed between the two separate brackets and the bracket, and the round shaft sleeves are respectively sleeved on the reduced diameter shaft portions, and the wrapped round shaft sleeves are respectively provided with shaft holes of a specific size and The torsion gap is inserted into the reduced diameter shaft portion, and the two ends of the wrapped circular sleeve are respectively provided with the round frame as the two separate brackets, so that one of the round frames is abutted on the spiral shaft portion and the reduced diameter Between the shaft portions, and one end of the reduced diameter shaft portion is locked and coupled after passing through another round frame.

Wherein, the round shaft sleeves are respectively provided with protruding pieces at both ends, and the round arms are respectively provided with slots at opposite positions for inserting the protruding pieces.

In a feasible embodiment, the slider reciprocating displacement structure includes positioning the lock slider between the first pivot and the second pivot by a pivot pin, and the shaft pin passes through the center of the slider via the buckle bracket a hole and engaging the end of the pin to one of the carrier surfaces of the two separate carriers.

Wherein, one of the frame surfaces is provided with a connecting seat, and the connecting seat cooperates with the buckled frame to lock both sides of the slider to become a stroke limiting device.

Another possible embodiment of the present invention includes: a first pivot shaft and a second pivot shaft opposite to the first pivot shaft, wherein the first pivot shaft and the second pivot shaft are respectively on the side of the shaft body An extension rod is arranged at the end for assembling the fixing piece; the first pivot shaft and the second pivot shaft body are respectively sleeved with opposite spiral shaft segments; the spiral rod body segments are respectively provided with a concave spiral integrally formed by the rod body The concave portion of the first pivot and the second pivot shaft are respectively recessed toward the inner central axis by a set radial distance to form opposite inner spirals, respectively, so that the relative The inner spirals respectively form a smaller diameter shaft portion in the auger body portion; and a slider, the slider is disposed on the first pivot shaft and the second pivot shaft in a reciprocating displacement structure The slider is provided with a central hole and is respectively provided with an upper spiral segment and a lower spiral segment at the upper and lower ends, and the upper spiral segment and the lower spiral segment are respectively provided with the shaft portion of the smaller diameter of the spiral shaft portion. The upper concave arc and the lower concave arc are respectively provided with an upper outer concave arc and a lower outer concave arc which are matched with the outer diameter of the spiral shaft portion in the adjacent positions of the upper concave arc and the lower concave arc. The slider causes the upper concave arc and the lower concave arc to be respectively connected to the partial concave spiral length of the concave spiral portion of the shaft portion of the screw shaft body, and the upper outer concave arc and the lower outer portion The concave arcs respectively abut the outer peripheral surface of the shaft of the auger body; and the two opposite brackets locate the first pivot and the second pivot of the auger body and limit the reciprocation of the slider For the displacement stroke, one of the outer ends of the bracket is respectively disposed on the first pivot and the second pivot. Torque and positioning member

10, 100‧‧‧ first pivot

20, 200‧‧‧ second pivot

11, 21‧‧‧ fixed piece

12, 22‧‧‧ auger body

13, 23‧‧‧ Reduce the diameter of the shaft

14‧‧‧ button carrier

15, 25‧‧‧ concave spiral

30, 300‧‧‧ slider

31‧‧‧ center hole

32‧‧‧Upper spiral

33‧‧‧Spiral section

34‧‧‧Upper concave arc

35‧‧‧ under concave arc

36‧‧‧Upper concave arc

37‧‧‧Under concave arc

38‧‧‧ axle pin

40, 50‧‧‧ round shaft bushing

41, 51‧‧‧ shaft hole

42, 52‧‧‧ Torque gap

43, 53‧‧‧ highlights

60,70‧‧‧round round shelf

61, 71‧‧‧ bolts

62‧‧‧ slots

63‧‧‧Connecting seat

90‧‧‧Outer bushing

120, 220‧‧‧ auger body

380‧‧‧ axle pin

600, 700‧‧‧relative shelves

800, 900‧‧‧ Torque and positioning components

Figure 1 shows a perspective view of a preferred embodiment of the present invention.

Figure 2 shows an exploded view of the main components of Figure 1.

Fig. 2A shows an enlarged view of the slider of Fig. 2.

Fig. 3 is a cross-sectional view showing the cross section taken along the line A-A in Fig. 1.

Fig. 3A is a cross-sectional view showing the cross section taken along line B-B of Fig. 3.

Fig. 4 is a perspective enlarged cross-sectional view showing the partial member of Fig. 1.

Figure 5 is a perspective view showing the angle of the other direction of the present pivot.

Figure 6 shows a perspective view of another possible embodiment of the present invention.

Fig. 7 is a partial exploded view of Fig. 6.

The novelty and other features of this creation will be combined with the details of the following figures. The explanation tends to be clear.

As shown in Figures 1 to 3, the entire pivot of the present invention can be shielded by an outer sleeve 90 that includes a first pivot 10 that sets the length of the shaft and an opposite second pivot. The shaft 20, the first pivot shaft 10 and the second pivot shaft 20 are respectively provided with extension rods at one side of the shaft body for assembling the fixing pieces 11, 21, so that the fixing pieces 11 and 21 can be combined and fixed respectively. The upper cover display end of the electronic device such as a computer and the host system end (not shown); the first pivot shaft 10 and the second pivot shaft 20 are respectively provided with opposite spiral shaft segments 12, 22 and to the other In the embodiment, the first pivot 10 and the second pivot 20 can be positioned by a button bracket 14; the auger body section 12 is 12 And 22 are respectively provided with inner concave spiral portions 15 and 25 integrally formed by the rod body, and the inner concave spiral portions 15 and 25 are respectively inwardly centered by the outer peripheral surface of the shaft body of the first pivot shaft 10 and the second pivot shaft 20 The shaft is recessed into a set radial distance to form opposing inner spirals, respectively, such that the opposing inner spirals are respectively in the auger section 12 22 forms a smaller diameter shaft portion.

A slider 30 is disposed between the first pivot 10 and the second pivot 20 in a reciprocating displacement structure. The slider 30 is provided with a central hole 31, and is provided with an upper spiral segment 32 and a lower spiral respectively at the upper and lower ends. In the segment 33, the upper spiral segment 32 and the lower spiral segment 33 are respectively provided with an upper concave arc 34 and a lower concave arc 35 which cooperate with the diameter of the shaft portion which forms a smaller diameter in the spiral shaft portions 12 and 22. In one embodiment, as shown in Figures 2 and 2A, the upper helical segment 32 is rotated backwards in a counterclockwise direction from front to back, and the lower helical segment 33 is rotated in a clockwise direction from front to back; The adjacent positions of the upper concave arc 34 and the lower concave arc 35 are respectively provided with an upper outer concave arc 36 and a lower outer concave arc 37 which match the diameter of the outer circumference of the spiral shaft portions 12 and 22 (please also refer to the second and fourth figures). ). As shown in the second, fourth, and fifth views, the upper concave arc 34 and the lower concave arc 35 are respectively connected to the slider according to the slider 30. The auger body segments 12, 22 are integrally formed with a partial concave spiral length of the concave spiral portions 15, 25, and the upper outer concave arc 36 and the lower outer concave arc 37 are respectively abutted to the auger body portion 12 , 22 the outer surface of the shaft.

The reduced-diameter shaft portions 13 and 23 of the first pivot shaft 10 and the second pivot shaft 20 can be assembled with two brackets of a set distance, and a torque positioning mechanism is disposed between the brackets. In the embodiment, the reduced diameter shaft portions 13 and 23 of the first pivot shaft 10 and the second pivot shaft 20 can be respectively sleeved with the torsion wrap round sleeves 40 and 50, and the round shaft sleeves 40 and 50 are respectively provided. The shaft holes 41, 51 and the torsion notches 42, 52 of a certain size enable the reduced diameter shaft portions 13, 23 to be inserted into the shaft holes 41, 51 of the round shaft sleeves 40, 50 in a tightly combined manner. The required pivotal positioning torque is generated by the torsion notches 42, 52 during deflection. The round shaft sleeves 40, 50 are respectively provided with round arms 60, 70, and one of the round frames 60 is abutted between the screw shaft portions 12, 22 and the reduced diameter shaft portions 13, 23 a shoulder formed; the round arms 60, 70 are respectively provided with upper and lower opposite through holes for respectively passing through the reduced diameter shaft portions 13, 23, and the ends of the reduced diameter shaft portions 13, 23 are passed through another After a set of round brackets 70, the outer bolts of the first pivot shaft 10 and the second pivot shaft 20 are locked by bolts 61 and 71, and the central bolts are locked to another circle. The outer end of the bracket 70. At the same time, in the embodiment, the round shaft sleeves 40, 50 are respectively provided with protruding pieces 43, 53 at the two ends, and the round arms 60, 70 are respectively provided with slots 62 at opposite positions (such as the second The figure shows only the opposite slots 62 of one of the round receptacles 60, and the slots of the other round receptacles 70 are not shown for insertion of the tabs 43, 53 to provide a preferred torque positioning function.

In this embodiment, the slider 30 is positioned between the first pivot 10 and the second pivot 20 by a shaft pin 38 for forming a reciprocating displacement structure on the shaft pin 38. Referring to Figures 3 and 5, the axle pin 38 can pass through the central hole 31 of the slider 30 via the button carrier 14, and the predetermined outer thread of the shaft pin 38 is locked to one of the round frames 60. In the surface connecting seat 63, the hook frame 14 and the connecting seat 63 can be pressed against the end faces of the slider 30, respectively, to become a restriction device for the reciprocating stroke of the slider 30.

According to the above structure, the slider 30 can be synchronously reciprocally displaced when any one of the first pivot 10 and the second pivot 20 is pivoted, and the other pivot is interlocked during the reciprocating movement of the slider 30. Achieve the function of two-axis simultaneous movement. Since the slider 30 is the upper concave arc 34 and the lower concave arc 35 of the upper spiral segment 32 and the lower spiral segment 33, respectively, the inner concave spiral portions 15 and 25 are integrally formed on the shaft portions 12 and 22 of the spiral shaft portion 12 and 22 respectively. Among the concave spirals, one of the advantages seen is that the longitudinal height of the entire pivot can be effectively reduced to facilitate the thin design, and the advantage is due to the slider 30. The upper spiral section 32 and the lower spiral section 33 are driven closer to the axes of the first pivot shaft 10 and the second pivot shaft 20, and can generate a more stable dual-axis synchronous function; at the same time, due to the use of the round frame 60, 70 positioning of the round sleeves 40, 50 to generate the torque positioning function can also reduce the amount of parts used, the axial length of the above-mentioned circular sleeves 40, 50 can also be selected according to the needs.

In another possible embodiment of the present invention shown in FIGS. 6 and 7, the slider 300 is also disposed between the spiral shaft portions 120 and 220 of the first pivot 100 and the second pivot 200. And directly positioning the auger shaft sections 120 and 220 of the first pivot shaft 100 and the second pivot shaft 200 with the opposite brackets 600 and 700 and restricting the reciprocating displacement stroke of the slider 300, and the one shaft pin 380 passes through the two opposite directions. The brackets 600 and 700 are opposite to the through hole and the central hole of the slider 300 for positioning and restricting the reciprocating displacement stroke of the slider 300; meanwhile, the first pivot 100 and the end of the second pivot 200 at the outer end of one of the brackets 700 The outer extension shaft body is respectively sleeved and fixed to fix most of the torque and positioning members 800, 900. In this embodiment, the torsion and positioning members 800, 900 can include a plurality of torsion springs and opposing positioning cams.

The present invention thus forms a biaxial co-rotating pivot, which can effectively reduce the longitudinal height of the entire pivot via the intermediate sliding member into the concave groove of the concave shaft, and is made closer to the transmission shaft center. The operation of the biaxial-like pivoting joint is more stable and reliable. It is unprecedented in the market and publications before the application, and the patent application is filed according to law.

The above embodiments are only used to facilitate the description of the present invention, and are not intended to be limiting, and various simple modifications and modifications that can be made by those skilled in the art in accordance with the embodiments, or alternatives to equal components, should still be included in the following Apply for a patent.

10‧‧‧First pivot

20‧‧‧Second pivot

11, 21‧‧‧ fixed piece

12, 22‧‧‧ auger body

14‧‧‧ button carrier

15, 25‧‧‧ concave spiral

30‧‧‧ Slider

32‧‧‧Upper spiral

33‧‧‧Spiral section

38‧‧‧ axle pin

40, 50‧‧‧ round shaft bushing

60,70‧‧‧round round shelf

61, 71‧‧‧ bolts

90‧‧‧Outer bushing

Claims (7)

A screw shaft synchronous double shaft pivoter comprising: a first pivot shaft and a second pivot shaft opposite to the first pivot shaft, wherein the first pivot shaft and the second pivot shaft are respectively respectively on the shaft body One end end is provided with an extension rod for assembling the fixing piece; and the first pivot shaft and the second pivot shaft body are respectively provided with opposite spiral shaft sections and a reduced diameter shaft body extending to the other side end, The first pivot shaft and the second pivot shaft are positioned by a buckle frame; the spiral shaft segments are respectively provided with concave spiral portions integrally formed by the rod body, and the concave concave portions are respectively formed by the first pivot The outer peripheral surface of the shaft and the second pivot shaft are recessed toward the inner central axis by a set radial distance to form opposite inner spirals, respectively, so that the opposite inner spirals respectively form a smaller diameter in the spiral shaft portion. a slider portion, the slider is disposed between the first pivot shaft and the second pivot shaft in a reciprocating displacement structure, the slider is provided with a central hole and is respectively provided with an upper spiral segment at the upper and lower ends a lower spiral section, wherein the upper spiral section and the lower spiral section are respectively provided with the above-mentioned auger The upper concave arc and the lower concave arc of the shaft portion of the smaller diameter portion are formed, and the adjacent positions of the upper concave arc and the lower concave arc are respectively provided with upper and outer diameters corresponding to the outer diameter of the spiral shaft portion a concave arc and a lower concave arc, wherein the upper concave arc and the lower concave arc are respectively connected to the partial concave spiral length of the concave spiral portion of the shaft portion of the screw shaft body according to the slider, and The upper outer concave arc and the lower outer concave arc respectively abut against the outer peripheral surface of the shaft body of the auger body; the first pivot shaft and the second pivot shaft reduce the shaft body to assemble two separate set distances And providing a torsion positioning mechanism between the brackets. The screw shaft center synchronous double shaft pivot device according to claim 1, wherein the torque positioning mechanism is disposed between the two separate brackets and the bracket, and the round shaft sleeve is respectively set on the reduced diameter shaft portion. The round shaft sleeves are respectively provided with shaft holes of a certain size and a torsion gap for inserting the above-mentioned shrinkage a small-diameter shaft portion, the two ends of the wrapped circular sleeve are respectively provided as round arms of the two separate brackets, such that one of the circular round frames abuts between the spiral shaft portion and the reduced diameter shaft portion, And one end of the reduced diameter shaft is locked and coupled after passing through another round frame. The screw shaft-shaft synchronous double-axis pivot device according to the second aspect of the invention, wherein the round shaft sleeves are respectively provided with protruding pieces at two ends, and the round-shaped receiving frames are respectively provided with slots for the opposite positions. Connect the above protruding piece. The screw shaft-synchronous biaxial pivot device of claim 1, wherein the slider reciprocating displacement structure comprises positioning the lock slider with the one pivot pin on the first pivot and the second pivot The axle pin passes through the center hole of the slider via the buckle bracket, and the end of the axle pin is engaged with one of the bracket surfaces of the two separate brackets. The screw shaft-centered synchronous double-axis pivoting device according to claim 4, wherein one of the bracket surfaces is provided with a connecting seat, and the connecting seat cooperates with the buckle-type bracket to lock the two sides of the slider Become a trip limit device. A screw shaft synchronous double shaft pivoter comprising: a first pivot shaft and a second pivot shaft opposite to the first pivot shaft, wherein the first pivot shaft and the second pivot shaft are respectively respectively on the shaft body The one end end is provided with an extension rod for assembling the fixing piece; the first pivot shaft and the second pivot shaft body are respectively sleeved with opposite spiral rod sections; the spiral rod body sections are respectively provided with the inner body integrally formed by the rod body a concave spiral portion, respectively, wherein the outer peripheral surface of the first pivot shaft and the second pivot shaft are recessed toward the inner central axis by a set radial distance to form opposite inner spirals, respectively The opposite inner spirals respectively form a smaller diameter shaft portion in the auger body portion; and a slider, the slider is disposed on the first pivot shaft and the second pivot shaft in a reciprocating displacement structure The slider is provided with a central hole and is respectively provided with an upper spiral segment and a lower spiral segment at the upper and lower ends, and the upper spiral segment and the lower spiral segment are respectively provided with the shaft portion of the smaller diameter of the spiral shaft portion. The upper concave arc and the lower concave arc are respectively provided with an upper outer concave arc and a lower outer concave arc which are matched with the outer diameter of the spiral shaft portion in the adjacent positions of the upper concave arc and the lower concave arc. The slider causes the upper concave arc and the lower concave arc to be respectively connected to the partial concave spiral length of the concave spiral portion of the shaft portion of the screw shaft body, and the upper outer concave arc and the lower outer portion The concave arcs respectively abut the outer peripheral surface of the shaft of the auger body; and the two opposite brackets locate the first pivot and the second pivot of the auger body and limit the reciprocation of the slider For the displacement stroke, one of the outer ends of the bracket is respectively disposed on the first pivot and the second pivot. Torque and positioning components. The screw shaft synchronous double shaft pivoting device according to claim 6, wherein a shaft pin passes through the two opposite brackets and the center hole of the slider for positioning and limiting the reciprocating displacement stroke of the slider.