TWI550199B - Integral biaxial synchronous pivot - Google Patents

Description

One-piece dual-axis co-rotating pivot

The invention relates to an integrated two-axis co-rotating pivoting device, in particular to an integrally formed outer peripheral pinion transmission portion, which can reduce the overall height of the biaxial cooperating pivoting device under the pivoting member. Different height and height height pivots for different electronic device types can be formed through the selection of gears of different sizes and offset media.

A mobile electronic device such as a notebook computer basically consists of a display screen cover and a host system end that can be opened or closed relative to each other, so that the components for displaying the screen cover and the host system end can be opened and closed mainly on the display. A pivot between the upper cover of the screen and the system end of the main unit, such modern electronic devices can be operated by a dual-axis co-rotating pivot to position the upper cover display screen at various angles. In modern times, such electronic devices can further bend the display end and the system end into a flat shape at a large angle of, for example, 360°, and provide a deformed use type.

The existing structure of such a biaxial pivot mainly has a first rotating shaft rotating together with the upper cover display screen, and a second rotating shaft rotating together with the host 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.

To this end, the Republic of China new patent M477136 "double shaft synchronous torque pivot The staggered shaft helical gear transmission mechanism is provided with a helical gear transmission mechanism between the two opposite pivot shafts, and the two-axis synchronous rotation mechanism can be formed by using the simplified gear set to form a two-axis synchronous rotation mechanism in the torque pivoting device. Turning the turning process on or off is faster and smoother, and it is more conducive to installation in a narrow internal space, which is beneficial to the thinning of the device.

In the Republic of China, the new patent No. M483452 "Durable Synchronous Opening Mechanism" is provided with a first first transmission rod and a second transmission rod between the two opposite transmission portions, and a transmission portion is disposed between the transmission rods, and The rods on the shaft of the transmission rod are respectively provided with an oppositely engaging outwardly extending arc and a transmission protrusion to solve the disadvantages of the low strength, large volume and non-positioning function of the two-axis co-rotating pivot.

Regardless of the intermediate helical gear of the new type of M477136 "Double-axis co-rotating pivoting mechanism", or the helical gear-shaped intermediate transmission of the new type M483452 "Durable Cooperative Opening Mechanism" A common disadvantage is that the intermediate helical gear or the intermediate transmission are both fixed heights, and the pivoting of such pivots cannot be flexibly configured for different product designs, for example, as mobile electronic devices such as notebook computers. During the thinning process of the device, the overall height of the pivot assembly must be relatively reduced, but the height of the existing pivot structure of the prior art cannot be adjusted elastically.

SUMMARY OF THE INVENTION The object of the present invention is to provide an integrated two-axis co-rotating pivoting device which can reduce the number of parts and the cumulative tolerance during the manufacturing process, so that the overall height of the finished product of the pivot can be effectively reduced.

SUMMARY OF THE INVENTION The object of the present invention is to provide an integrated two-axis co-rotating pivot, the height of which can be optimized to match the height of the design product.

To achieve the above objects, the present invention comprises:

a first pivot shaft and an opposite second pivot shaft, wherein the first pivot shaft and the second pivot shaft are respectively provided with extension rods at one side end of the shaft body for assembling the fixing piece, The fixing piece respectively combines the upper cover display end of the fixed electronic device and the host system end; at the other side ends of the first pivot shaft and the second pivot shaft body respectively, a reduced diameter shaft portion is provided, and at the same time, the first pivot shaft And the second pivot shaft body is integrally formed on the first transmission portion and the second transmission portion of the outer peripheral surface pinion shaft; the first pivot shaft and the second pivot shaft respectively pass through the opposite through holes in the reduced diameter shaft portion A socket, a partition plate and a torsion positioning structure are disposed in the same manner, and the bracket is provided with two first shaft holes and a second shaft hole at different horizontal levels near the intermediate position for the first shaft hole And forming a height gap between the second shaft holes; a first medium gear and a second medium gear are respectively provided with central holes and are meshed with each other at one end, and the first medium gear and the second medium gear are respectively a first axle pin and a second axle pin positioned through the center hole in the first a shaft hole and a second shaft hole, the other end of the first medium gear is meshed with the first transmission portion, and the other end of the second medium gear is meshed with the second transmission portion; The face gear drive reduces the pivot member and optimizes the overall height of the pivot through the intermediate media gear and can be optimized for different height pivots required by different products.

In a possible embodiment, the receiving frame is provided with a recessed area at a position close to an intermediate position for providing the first shaft hole and the second shaft hole of the different horizontal levels, and the first shaft pin and the second shaft pin are a long diameter end is formed at one end to form a shoulder, and the other end is provided with a small diameter end, and the first shaft pin and the second shaft pin body respectively pass through the first medium gear and the second medium gear center a hole, and the small diameter end portion is respectively inserted into the first shaft hole and the second shaft hole, and the small diameter end portion is pierced A shaft hole and a second shaft hole extend into the recessed portion for local length machining positioning to move the first medium gear and the second medium gear between the large diameter end and the carrier.

Wherein, the horizontal gap between the first shaft hole and the second shaft hole is formed by selecting first and second medium gears of different sizes.

The horizontal gap between the first shaft hole and the second shaft hole is formed by the first medium gear and the second medium gear at different offset positions.

In another possible embodiment, the first medium gear and the second medium gear respectively form a short shaft end on both sides, and the first pivot shaft and the second pivot shaft are in the first transmission portion and the second One end of the transmission part is respectively provided with a groove portion, and one button type frame is provided with two opposite notch portions for fastening to the groove portion, and the button type frame is provided differently from the first shaft hole and the second shaft hole Positioning the first medium gear and the short shaft ends of the second medium gear on the opposite first and second shaft holes and the first positioning hole, respectively, with respect to the first positioning hole and the second positioning hole And between the second positioning holes.

10, 100‧‧‧ first pivot

11, 21‧‧‧ fixed piece

12, 22‧‧‧ Reduced diameter body

13, 130‧‧‧ first transmission

14, 24‧‧‧ Gasket

15, 25‧‧‧ cam

16, 26‧‧‧ Torsional shrapnel

17, 27‧‧‧ nuts

20, 200‧‧‧ second pivot

23, 230‧‧‧second transmission

30, 300‧‧‧ ‧ Shelf

31, 310‧‧‧ first shaft hole

32, 320‧‧‧Second shaft hole

33‧‧‧ recessed area

40‧‧‧Baffle

50, 500‧‧‧ first medium gear

51, 61‧‧‧ center hole

52‧‧‧First shaft pin

53, 63‧‧‧ large diameter end

54, 64‧‧‧ small diameter end

60, 600‧‧‧Second medium gear

62‧‧‧Second shaft pin

70‧‧‧ button carrier

71, 72‧‧ ‧ gap

73‧‧‧First positioning hole

74‧‧‧Second positioning hole

101, 201‧‧‧ Groove

501, 502, 601, 602‧‧‧ short shaft ends

A‧‧‧High level centerline

B‧‧‧Low-level centerline

S‧‧‧height clearance

Figure 1 shows a perspective view of a possible embodiment of the invention.

Fig. 2 is an exploded view of the first figure.

Fig. 3 is a partial perspective view of Fig. 1.

Fig. 4 is a cross-sectional view showing the operation of the transmission mechanism of Fig. 3 in the direction of the reduced diameter shaft.

Figure 5 is a perspective view showing another possible embodiment of the present invention.

Fig. 6 is a view showing an exploded view of the solid element of Fig. 5.

The novel features and other features of the invention are disclosed in the description

As shown in Figures 1 and 2, the present invention includes a first pivot 10 for setting the length of the shaft and an opposite second pivot 20, wherein the first pivot 10 and the second pivot 20 are respectively An extension rod is arranged at one end of the shaft body for assembling the fixing pieces 11 and 21, so that the fixing pieces 11 and 21 can respectively be combined with the upper cover display end of the electronic device such as a notebook computer and the host system end (not shown). And at the other side ends of the first pivot shaft 10 and the second pivot shaft 20, respectively, the reduced diameter shaft portions 12 and 22 are respectively provided, and at the same time, the first pivot shaft 10 and the second pivot shaft 20 are respectively respectively a first transmission portion 13 and a second transmission portion 23, which are integrally formed on the outer peripheral surface of the shaft body, and the shoulder portions of the first pivot shaft 10 and the second pivot shaft 20 and the reduced diameter shaft portions 12 and 22 After the sleeves 14 and 24 are respectively inserted into the sleeves, the flanges 12 and 22 are respectively sleeved through the opposite through holes, and the brackets 30 and the partitions 40 are sequentially disposed, and the reduced diameter shafts 12 and 22 are the same. After the cams 15, 25 and the torsion coil groups 16, 26 which are uniformly rotated, the locking nuts 17, 27 are locked by the locking nuts 17, 27 to the opposite external threads (not shown) of the reduced diameter shaft portions 12, 22. group Target entire pivot device. In this embodiment, the partition plate 40 is respectively provided with a concave wheel positioning structure at a position opposite to the cams 15, 25, so that the first pivot shaft 10 and the second pivot shaft 20 can simultaneously cooperate when rotating relative to each other. The torsion shrapnel sets 16, 26 form the desired torsion positioning structure.

The rack 30 is provided with two first shaft holes 31 and a second shaft hole 32 at different horizontal levels in a near intermediate position. In this embodiment, the first shaft hole 31 has a horizontal height slightly higher than The second shaft hole 32; a first medium gear 50 and a second medium gear 60 are respectively provided with central holes 51, 61 and are engaged with each other at one end, and are worn by a first shaft pin 52 and a second shaft pin 62. Positioning the central hole 51, 61 in the first shaft hole 31 and the second shaft hole 32 to make the first medium The other end of the gear 50 is meshed with the first transmission portion 13, and the other end of the second medium gear 60 is meshed with the second transmission portion 23.

In this embodiment, the bracket 30 is provided with a recessed area 33 at a position close to an intermediate position for providing a first shaft hole 31 and a second shaft hole 32, and the first shaft pin 52 and the second shaft pin 62 are Large end portions 53 and 63 are provided at one end to form a shoulder, and the other end is provided with small diameter ends 54, 64 to allow the first shaft pin 52 and the second shaft pin 62 to pass through the shaft body respectively. The first medium gear 50 and the second medium gear 60 have central holes 51 and 61, and the small diameter ends 54 and 64 are respectively inserted into the first shaft hole 31 and the second shaft hole 32, and the small diameter end portion 54 is inserted. And 64 are inserted out of the first shaft hole 31 and the second shaft hole 32 and extend into a partial length of the recessed portion 33 for positioning by punching or riveting, so that the first medium gear 50 and the second The media gear 60 is movably positioned between the large diameter ends 53, 63 and the carrier 30.

As shown in FIGS. 3 and 4, according to the above configuration, when any one of the first pivot 10 and the second pivot 20 is rotated by the opening and closing operation of the electronic device, the first pivot 10 is first. The transmission portion 13 interlocks with the first medium gear 50 that is engaged with the first transmission portion 13 at one end, and engages the other end of the first medium gear 50 to interlock the second medium gear 60 to drive the second medium gear 60 to the other end. The second transmission portion 23 synchronously interlocks the second pivot shaft 20. Since the first medium gear 50 is disposed at a higher horizontal center line A as illustrated, and the second medium gear 60 is disposed at a lower horizontal center line B with a height gap S therebetween, the present invention may be used differently The size of the first medium gear 50 and the second medium gear 60 or the different offset positions of the first medium gear 50 and the second medium gear 60 inward or outward to elastically adjust the size of the height gap S, the present invention can not only The overall pivot has a small overall height after assembly, and the overall height can be adapted to different electronic product designs to adjust the most suitable overall height of the pivot.

In another possible embodiment of the present invention shown in FIGS. 5 and 6, the first medium gear 500 and the second medium gear 600 can respectively form short shaft ends 501, 502, 601, 602 at both ends, The first frame hole 310 and the second shaft hole 320 are disposed at different horizontal levels, and the first pivot 100 and the second pivot 200 are at the first transmission portion 130 and the second One end of the transmission portion 230 is preset with the groove portions 101 and 201, and the first button frame 70 is provided with two opposite notch portions 71 and 72 for fastening to the groove portions 101 and 201. The button frame 70 is provided. There are opposite first positioning holes 73 and second positioning holes 74 at different horizontal levels from the first shaft hole 310 and the second shaft hole 320, so that the shaft pin and the relative machining positioning structure can be used without using the shaft pin The short shaft ends 501, 502, 601, 602 of the first medium gear 500 and the second medium gear 600 are respectively positioned on the opposite first shaft hole 310 and the second shaft hole 320, and the first positioning hole 73 and the second positioning hole. Between 74.

The invention thus forms a two-axis co-rotating pivoting device which can reduce the number of parts and the cumulative tolerance during the manufacturing process, and at the same time, the overall height of the finished product of the pivot can be effectively reduced, the height of the finished product of the pivot can be matched with the height of the designed product. Adjust the most suitable type.

The above embodiments are only used to exemplify the invention, and are not intended to be limiting, and various alternative modifications and modifications which may be made by those skilled in the art, or alternatives to equal components, should still be included in the following. Apply for a patent.

10‧‧‧First pivot

11, 21‧‧‧ fixed piece

13‧‧‧First Transmission

15, 25‧‧‧ cam

16, 26‧‧‧ Torsional shrapnel

17, 27‧‧‧ nuts

20‧‧‧Second pivot

23‧‧‧Second transmission

30‧‧‧ Shelf

33‧‧‧ recessed area

40‧‧‧Baffle

50‧‧‧First media gear

53, 63‧‧‧ large diameter end

60‧‧‧Second medium gear

Claims (4)

An integrated two-axis synchronous pivoting device includes: a first pivot shaft for setting a length of the shaft body and an opposite second 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 disposed at the end for assembling the fixing piece, and the fixing piece is respectively combined with the upper cover display end of the fixed electronic device and the host system end; and the other side ends of the first pivot shaft and the second pivot shaft body are respectively respectively disposed a first transmission portion and a second transmission portion integrally formed on the shaft shaft of the outer peripheral surface of the shaft body at the same time as the first pivot shaft and the second pivot shaft body; the first pivot shaft and the second transmission portion The pivot shafts respectively sleeve a bracket, a partition plate and a torsion positioning structure through the opposite through holes in the reduced diameter shaft body, and the bracket is provided with two first shaft holes at different horizontal levels and one near the intermediate position. a second shaft hole for forming a height gap between the first shaft hole and a second shaft hole; a first medium gear and a second medium gear are respectively provided with a center hole and are meshed with each other at one end, The first medium gear and the second medium gear are respectively a first shaft pin and a first Positioning the pin through the central hole in the first shaft hole and the second shaft hole, so that the other end of the first medium gear is meshed with the first transmission portion, and the other end of the second medium gear is The second transmission portion is engaged with the transmission; the carrier is provided with a concave portion at a position close to the intermediate position for providing the first shaft hole and the second shaft hole of the different horizontal levels, the first shaft pin and the second shaft The pin is provided with a large diameter end at one end to form a shoulder, and the other end is provided with a small diameter end, and the first shaft pin and the second shaft pin body respectively pass through the first medium gear and the second medium a central hole of the gear, and the small diameter end portion penetrates into the first shaft hole and the second shaft hole respectively, and the small diameter end portion passes through the first shaft hole and the second shaft hole and extends into the concave portion The partial length machining positioning positions the first medium gear and the second medium gear to be positioned between the large diameter end and the carrier. The integrated two-axis synchronous pivoting device according to claim 1, wherein the first medium gear and the second medium gear respectively form a short-axis end on both sides, the first pivot and the first The two pivots are respectively provided with a groove portion at one ends of the first transmission portion and the second transmission portion, and a button frame is provided with two opposite notch portions for fastening to the groove portion, and the buckle frame is provided with The first shaft hole and the second shaft hole are opposite to the first positioning hole and the second positioning hole at different horizontal levels, and the short side ends of the first medium gear and the second medium gear are respectively positioned at opposite positions A shaft hole and a second shaft hole are interposed between the first positioning hole and the second positioning hole. The integrated two-axis synchronous pivoting device according to claim 2, wherein a horizontal gap between the first shaft hole and the second shaft hole and the opposite first positioning hole and the second positioning hole The first medium gear and the second medium gear are formed in different sizes. The integrated two-axis synchronous pivoting device according to claim 1, wherein a horizontal gap between the first shaft hole and the second shaft hole and the opposite first positioning hole and the second positioning hole The first medium gear and the second medium gear are formed at different offset positions.