TWM550963U - Parallelism stability mechanism for rotation shaft of biaxial synchronous pivot device - Google Patents

Description

Two-axis co-rotating pivot shaft parallelism stabilizing mechanism

The present invention relates to a parallelism stabilization mechanism for a rotating shaft of a two-axis synchronous pivot, in particular to a parallelism that maintains the relative pivots of the two-axis synchronous pivoting device, so that the operation of such a dual-axis synchronous pivoting device More stable and reliable.

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 structure of the early two-axis pivoting device 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, when such an early two-axis pivot is opened at a large angle, or the display end and the system end are folded over 360° in an overlapping state, usually one of the axes is first rotated to a specific angle, and then switched to another One-axis rotation, in addition to the entire display end and the system side of the synchronous folding mechanism is quite complicated, manufacturing and assembly is more troublesome and costly.

In the modern two-axis pivoting device, a helical gear transmission mechanism is arranged between the two opposite pivots, and a two-axis synchronous rotating mechanism can be formed on the torque pivoting device with a simplified gear set to make the double The shaft torsion pivoting mechanism opens and closes the rotation process more quickly and smoothly, and is more advantageous for installation in a narrow internal space, which is advantageous for thinning of the device.

However, no matter what kind of synchronous rotation mechanism is adopted for such a biaxial co-rotating pivot, how to ensure that the two axes of the upper and lower opposite sides maintain the originally set parallelism during the operation of the two relative pivots or in the long-term frequent use situation, Will affect the relative displacement of the upper cover screen display end and the host system end can be stable and reliable, but most of the existing such dual-axis synchronous pivots only use a simple fastening tab to connect the upper and lower relative pivots, so that this type of application The electronic equipment of the two-axis co-rotating pivot is less stable during operation and less durable.

The purpose of the present invention is to provide a parallelism stabilization mechanism for a shaft of a two-axis co-rotating pivot, which can effectively increase the parallel stability of the two relative pivots of the two-axis co-rotating pivot to improve the operation function and precise control of the two-axis. Features and make the entire pivoter more durable.

In order to achieve the above objective, the present invention includes: 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 assembly and fixing a fixing piece is respectively combined with an upper cover display end of the electronic device and a host system end; and the other side ends of the first pivot shaft and the second pivot shaft body are respectively provided with a reduced diameter shaft portion, the first The pivot shaft and the second pivot shaft body are respectively provided with a transmission gear, and a concave neck of a certain size and an axial width is respectively disposed between the end of the transmission gear and the first pivot shaft and the second pivot shaft; And an upper and lower opposite through hole for the non-coupling structure to pass through the reduced diameter shaft portion of the first pivot shaft and the second pivot shaft, wherein the middle partition plate is provided with two extending pieces for positioning an intermediate gear, The upper and lower ends of the intermediate gear respectively mesh with the transmission teeth of the first pivot and the second pivot a rear partition is disposed at the rear of the middle partition to pass through the reduced diameter shaft portion of the first pivot shaft and the second pivot shaft to sleeve the torque elastic assembly and assemble a plurality of axial force washers to generate the required Angle positioning and torsion; the concave portion of the first pivot and the second pivot is provided with a parallelism maintaining mechanism of the first pivot and the second pivot, and the parallelism maintaining mechanism comprises two opposite To the installed buckle piece, the buckle piece is provided with upper and lower reverse notches, such that the opening of one of the notches faces one side, and the opening of the other notch faces the other side, and is disposed at a middle position of the buckle piece body. An axial positioning structure; the buckles reversely mounted in the same manner are fastened in a staggered manner to the concave necks of the first pivot and the second pivot through the upper and lower reverse notches on different sides, and The axial positioning structure forms an axial positioning of the buckle; the two opposite pivots are assembled in a reverse staggered manner via the buckles, and then combined with the axial positioning structure provided on the buckle, so that The parallelism of the two relative axes is more stable, which helps to enhance such dual axes. Pivot opening and closing operation of stability, and the entire device is more durable and reliable pivot.

In a possible embodiment, the axial positioning structure comprises a protruding piece on one side of the buckle piece, and a card interface corresponding to the protruding piece size of the protruding piece is punched on the other side, so that the protruding piece is And the card interface is card-coupled to each other due to the reverse setting.

In another possible embodiment, the buckle is punched with a central through hole, and the buckle is riveted into the axial positioning structure via the central through hole by a rivet.

In a further embodiment, at least one of the buckles is disposed, and the axial positioning structure includes a concave notch on each side of the central position of the buckle, and two extension pieces of the middle partition The end portion further extends the engaging piece that matches the size of the concave notch, so that the engaging piece is engaged with the concave notch to form an axial positioning structure.

10‧‧‧First pivot

100‧‧‧second pivot

11, 101‧‧‧ extension rod

12, 102‧‧‧ Reduced diameter body

13, 103‧‧‧ Transmission gears

14, 104‧‧‧ protrusions

15, 105‧‧‧ concave neck

20, 200‧‧‧ partition

21, 22‧‧‧through holes

23, 24, 230, 240‧‧‧ extensions

25, 26‧‧‧ transverse through holes

27‧‧‧Intermediate gear

28‧‧‧ axle pin

29‧‧‧Components

30‧‧‧ outer partition

31, 32‧‧‧ holes

40, 50‧‧‧Torque shrapnel

41, 51‧‧‧ nuts

61, 62, 63, 71, 72, 73‧‧‧ axial force washers

80, 90, 800, 900, 806‧‧‧

81, 82, 91, 92, 801, 802, 901, 902‧‧ ‧ up and down reverse gap

83, 93‧‧‧ protruding pieces

84, 94‧‧‧ card interface

231, 241‧‧‧ card tabs

803, 903‧‧‧ central through hole

805‧‧‧ Rivets

807, 808‧‧‧ concave gap

Fig. 1 is a perspective view showing the first embodiment of the present creation.

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

Fig. 3 is a partially enlarged cross-sectional view showing the first drawing.

Fig. 4 is a partially enlarged perspective sectional view showing Fig. 1;

Fig. 5 is an exploded perspective view showing the third embodiment of the present invention.

Fig. 6 is a perspective view showing the partial member assembly of Fig. 5.

Fig. 7 is an exploded perspective view showing the third embodiment of the present invention.

Fig. 8 is a perspective view showing the combination of the partial members of Fig. 7.

The novelty and other features of the present invention will be apparent from the following detailed description of the embodiments of the drawings.

As shown in FIGS. 1 to 3, in the first possible embodiment of the present invention, a first pivot 10 for setting the length of the shaft body and an opposite second pivot 100 are included. The shaft 10 and the second pivot shaft 100 are respectively provided with extension rods 11 and 101 at one end of the shaft body for assembling fixing pieces (not shown), so that the fixing pieces can be combined and fixed respectively for electronic equipment such as a notebook computer. a cover display end and a host system end (not shown); and at the other side ends of the first pivot 10 and the second pivot 100, respectively, a reduced diameter shaft portion 12, 102 is provided, the reduced diameter The upper and lower surfaces of the shaft portions 12 and 102 are respectively provided with a cutting plane for selectively interlocking or non-linking related components, and at the same time, the first pivot 10 and the second pivot 100 are respectively provided with transmission gears 13 and 103, respectively. In an embodiment, the gear teeth Concave necks 15, 105 of a certain axial width are provided between the ends of the wheels 13, 103 and the projections 14, 104 of the first pivot 10 and the second pivot 100, respectively.

A middle partition plate 20 is provided with upper and lower opposite through holes 21, 22 for passing through the reduced diameter shaft portions 12, 102 of the first pivot shaft 10 and the second pivot shaft 100 in a non-coupling structure, the middle partition plate 20 is further provided with two extending pieces 23, 24 for respectively defining the opposite lateral through holes 25, 26 in the extending pieces 23, 24, and a middle center hole may be disposed between the extending pieces 23, 24. a gear 27, and a shaft pin 28 passes through the lateral through holes 25, 26 and the center hole to position the intermediate gear 27, and the upper and lower ends of the intermediate gear 27 are respectively meshed and coupled to the first pivot 10 and the second The transmission gears 13, 103 of the pivot 100. In this embodiment, the middle partition 20 is integrally connected to a set of connectors 29.

An outer partition plate 30 is disposed behind the middle partition plate 20, and the outer partition plate 30 is provided with upper and lower opposite holes 31, 32, and also passes through the first pivot shaft 10 and the second pivot shaft 100 in a non-coupling structure. The diameter shaft portions 12 and 102 are reduced, and the reduced diameter shaft portions 12 and 102 are passed through the upper and lower opposite holes 31 and 32, and the torsion elastic piece groups 40 and 50 are respectively sleeved, and then locked by the nuts 41 and 51, respectively. The outer outer teeth of the reduced diameter shaft portions 12, 102 are reduced. Between the end faces of the transmission gears 13, 103 and the side surface of the intermediate partition 20, the other side surface of the intermediate partition 20, and the side surface of the outer partition 30, and the other side surface of the outer partition 30 and the torsion A plurality of axial force washers 61, 62, 63, 71, 72, 73 combined with the reduced diameter shaft portions 12, 102 may be respectively disposed between the shrapnel groups 40, 50 to generate a desired angular position. And torque.

The main feature of the present invention is that a parallelism maintaining mechanism of the first pivot 10 and the second pivot 100 is provided along the concave necks 15, 105 of the first pivot 10 and the second pivot 100, and this embodiment The parallelism maintaining mechanism includes two oppositely disposed buckles 80, 90, The buckles 80 and 90 are provided with at least upper and lower reverse notches 81, 82, 91, 92 such that the openings of one of the notches 81, 91 face one side, and the openings of the other notches 82, 92 face the other side. In the embodiment, the axial positioning structure includes the protruding pieces 83, 93 on the side of the buckles 80 and 90, and the axial positioning structure is disposed on the side of the buckles 80 and 90. The other side is provided with a card interface 84, 94 sized to match the projections 83, 93. Please also refer to FIG. 4, and the buckles 80 and 90 which are reversely mounted in the same manner can be fastened to the opposite first pivots in a staggered manner by the upper and lower reverse notches 81, 82, 91, 92 on different sides. The concave neck portions 15, 105 of the shaft 10 and the second pivot shaft 100, at the same time, the protruding piece 83 of one of the fastening pieces 80 is fastened to the card interface 94 of the other fastening piece 90, and the protruding piece 93 of the other fastening piece 90 Then, the card interface 84 of the buckle 80 is fastened to form a stable axial positioning structure.

As shown in the fifth embodiment of the present invention, as shown in the fifth embodiment of the present invention, the buckles 800 and 900 are disposed in opposite directions, and the buckles 800 and 900 are provided with upper and lower reverse notches 801 and 802. 901, 902, the openings of one of the notches 801, 901 are oriented toward one side, the openings of the other notches 82, 92 are oriented toward the other side, and axial positioning is provided at a position close to the middle of the buckles 800, 900. In the embodiment, the axial positioning structure includes the central through holes 803 and 903 of the buckles 800 and 900, and the buckles 800 and 900 can pass through the central through hole 803 with a rivet 805. 903 riveting to form a stable axial positioning structure (see Figure 6).

In the third embodiment of the present invention shown in FIGS. 7 and 8, at least the package or the buckle 806 is also provided with a gap in the upper and lower directions, and an axial positioning structure is disposed at a position close to the middle portion of the buckle 806. In this embodiment, the fastening piece 806 is respectively provided with concave notches 807 and 808 on both sides of the central position, and the ends of the two extending pieces 230 and 240 of the intermediate partition 200 further extend to fit the concave notch 807. The 808-sized latching tabs 231 and 241, after the latching tabs 806 are fastened to the upper and lower pivots, the latching tabs 231 and 241 can be simultaneously engaged with the recessed notches 807 and 808 (refer to FIG. 8). The axial positioning structure is formed.

Since the two opposite rotating shafts of the two-axis co-rotating pivot are assembled in a reverse staggered manner via the fastening elements, and then combined with the axial positioning structure provided on the fastening element piece, the two opposite rotating shafts are combined. The parallelism is more stable, and the operation is more precise and accurate, which helps to improve the stability of the opening and closing action of such a double-axis synchronous pivoting device, and makes the entire pivoting device more durable and reliable.

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

100‧‧‧second pivot

11, 101‧‧‧ extension rod

13, 103‧‧‧ Transmission gears

14, 104‧‧‧ protrusions

20‧‧‧ middle partition

24‧‧‧Extension

28‧‧‧ axle pin

29‧‧‧Components

30‧‧‧ outer partition

40, 50‧‧‧Torque shrapnel

41, 51‧‧‧ nuts

80, 90‧‧‧"

83, 93‧‧‧ protruding pieces

84, 94‧‧‧ card interface

Claims (5)

A two-axis co-rotating pivot shaft parallelism stabilizing mechanism comprises: a first pivot shaft and an opposite second pivot shaft, wherein the first pivot shaft and the second pivot shaft are respectively disposed at one end of the shaft body An extension rod is provided for assembling the fixing piece, and the fixing piece is respectively combined with the upper cover display end of the electronic device and the host system end; and the other side of the first pivot shaft and the second pivot shaft body are respectively provided with a reduced diameter a shaft portion, the first pivot shaft and the second pivot shaft body are respectively provided with a transmission gear, and the end of the transmission gear and the first pivot shaft and the second pivot shaft are respectively provided with a concave groove of a specific size and axial width a middle plate; a middle partition plate is provided with upper and lower opposite through holes for the non-coupling structure to pass through the reduced diameter shaft portion of the first pivot shaft and the second pivot shaft, and the middle partition plate is provided with two extending pieces Positioning an intermediate gear, the upper and lower ends of the intermediate gear respectively mesh with the transmission gears of the first pivot and the second pivot; the outer partition is provided with an outer partition for passing through the first pivot and The second pivoting reduced diameter shaft body is sleeved with a torsion elastic piece group and assembled with a plurality of axial force washers The angular positioning and the torsion force required for the first angle and the concave portion of the second pivot are provided with the parallelism maintaining mechanism of the first pivot and the second pivot, and the parallelism maintaining mechanism comprises two The cleats are reversely mounted, and the cleats are provided with upper and lower reverse notches so that the opening of one of the notches faces one side, and the opening of the other notch faces the other side, and the cleat piece The middle portion is provided with an axial positioning structure; the buckles which are reversely mounted in the same manner are fastened in a staggered manner to the concave necks of the first and second pivots via the upper and lower reverse notches on different sides. And forming the axial positioning of the cleat in the axial positioning structure. The biaxial co-rotating pivot shaft parallelism stabilizing mechanism according to claim 1, wherein the axial positioning structure comprises a protruding piece on one side of the buckle piece, and one side is punched on the other side. Match The card interface of the protruding piece size of the protruding piece is combined. The biaxial co-rotating pivot shaft parallelism stabilizing mechanism according to claim 1, wherein the axial positioning structure comprises a central through hole in the buckle, and the buckle is fastened by a rivet. The sheet is riveted through the central through hole. A two-axis co-rotating pivot shaft parallelism stabilizing mechanism comprises: a first pivot shaft and an opposite second pivot shaft, wherein the first pivot shaft and the second pivot shaft are respectively disposed at one end of the shaft body An extension rod is provided for assembling the fixing piece, and the fixing piece is respectively combined with the upper cover display end of the electronic device and the host system end; and the other side of the first pivot shaft and the second pivot shaft body are respectively provided with a reduced diameter a shaft portion, the first pivot shaft and the second pivot shaft body are respectively provided with a transmission gear, and the end of the transmission gear and the first pivot shaft and the second pivot shaft are respectively provided with a concave groove of a specific size and axial width a middle plate; a middle partition plate is provided with upper and lower opposite through holes for the non-coupling structure to pass through the reduced diameter shaft portion of the first pivot shaft and the second pivot shaft, and the middle partition plate is provided with two extending pieces Positioning an intermediate gear, the upper and lower ends of the intermediate gear respectively mesh with the transmission gears of the first pivot and the second pivot; the outer partition is provided with an outer partition for passing through the first pivot and The second pivoting reduced diameter shaft body is sleeved with a torsion elastic piece group and assembled with a plurality of axial force washers The angular positioning and the torsion required for the first angle and the concave portion of the second pivot are provided with the parallelism maintaining mechanism of the first pivot and the second pivot, and the parallelism maintaining mechanism includes at least a buckle piece, wherein the buckle piece is provided with upper and lower reverse notches, such that the opening of one of the notches faces one side, the opening of the other notch faces the other side, and an axial direction is provided at a middle position of the buckle piece body. a positioning structure; the buckle is fastened to the concave neck of the first pivot and the second pivot via the upper and lower reverse notches of different sides, and The axial positioning structure forms an axial orientation of the cleat. The biaxial co-axial pivot shaft parallelism stabilizing mechanism of claim 4, wherein the axial positioning structure comprises a concave notch on each side of the central portion of the buckle, the middle partition The end portions of the two extending pieces further extend out of the engaging piece sized to fit the concave notch, so that the engaging piece is engaged with the concave notch.