TWI647390B - Multi-section switching pivot - Google Patents

Abstract

A multi-segment switching pivot, comprising a first shaft and a second shaft sequentially moving through the related members, and arranging a first concave cam group between the inner partition and the intermediate positioning partition, and located at the above a second concave cam group between the intermediate positioning partition and the outer partition; the first concave cam group and the second concave cam group are respectively formed by the opposite upper and lower concave wheels and the intermediate cam, and the upper concave wheel is respectively provided with a short concave arc The lower concave wheel is respectively provided with a plurality of rotation angle control devices, and the second concave cam group and the intermediate positioning partition plate are provided with a fixed point angle control device; thereby, the switching device and the like can be maintained without using a switching piece or a switching pin. The multi-stage switching rotation of such a biaxial pivot is performed under the flat shape of the pivot.

Description

 Multi-section switching pivot  

SUMMARY OF THE INVENTION The present invention is directed to a multi-segment switching pivot that enables such multi-angle pivots to perform an adjustment rotation of a multi-segment planing pivot without the use of additional switching devices.

An electronic device such as a notebook computer is generally composed of a host system end and a liquid crystal display screen that can be opened, and a pivot connection is used as an action axis at the opposite end of the host system end and the liquid crystal display screen end. In use, the LCD screen can be opened with the pivot as the action axis, or the two can be relatively closed or stored for use when not in use.

This type of notebook computer can be used to adjust the display end and the system end into a variety of different operating angles through the setting of the two-axis pivoting device, and even bend 360° into a flat plate shape, providing a type of operation such as a tablet computer. And the type of use.

The existing structure using the two-axis pivoting device mainly has 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.

In the folding control mechanism of the existing such a biaxial pivot, a switching piece sleeved on the shaft body is usually used to control one axis to rotate to a set angle, and then switch to another axis, since the switching piece is set at The axial position of the actuating mechanism to control the axial movement relatively increases the length of the entire pivot, which is not advantageous for the miniaturization of the overall length of the pivot.

Subsequently, although there is a pivot design which can reduce the axial length of the above-mentioned switching piece, it is basically necessary to use the switching device, and there is a disadvantage that the member is complicated and the stability of the entire pivot is affected. At the same time, when the multi-stage rotary biaxial pivot is turned from the closed state to 360°, the biaxial displacement will change, especially when the position is turned to 180°, the whole pivot will protrude from the electronic equipment booth. The surface in a flat state makes it difficult to place such an electronic device on the table top.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a multi-segment switching pivot that allows for multi-stage switching of such dual-axis pivots without the use of switching devices such as switching tabs or switching pins.

Another object of the present invention is to provide a multi-segment switching pivot that can be used to flatten the surface of the pivotal device and the electronic device when rotated to a set angle, thereby facilitating stable flat laying of the electronic device on the table top.

In order to achieve the above objective, the present invention comprises: a first shaft and a second shaft disposed opposite to the first shaft, wherein the first shaft and the second shaft respectively combine an upper connecting piece and a lower connecting piece, wherein The connecting piece and the lower connecting piece respectively combine a screen display end and a system end of an electronic device; the first axis and the second axis sequentially move through an inner positioning plate, a torsion elastic piece group, an inner partition, An intermediate positioning partition and an outer partitioning plate and an outer positioning plate are further assembled by the assembling member; the first shaft and the second shaft are combined with the interlocking structure and located at the inner partition and the intermediate positioning partition a first concave cam group, and a second concave cam group between the intermediate positioning partition and the outer partition, so that the first concave cam group and the second concave cam group are located on both sides of the intermediate positioning partition The first concave cam set includes a concave wheel on one side, a concave wheel disposed on a side of the concave wheel opposite to the lower side, and a concave wheel on the one side and a concave wheel on the one side One side intermediate cam; the second concave cam set includes a concave side on the other side, a lower side concave wheel on the other side opposite the concave wheel, and a other side intermediate cam between the other side upper concave wheel and the other side lower concave wheel; the first shaft and the second shaft Separating the structure through the one-side upper concave wheel and the one-side lower concave wheel of the first concave cam group, and the other side upper concave wheel and the other side lower concave wheel of the second concave cam group; the first concave cam group And the concave wheel on one side of the second concave cam group and the concave wheel on the other side are respectively provided with short concave arcs, and the one lower concave wheel and the other lower concave wheel are respectively provided with long concave arcs as a multi-stage rotation angle control device The concave cam on the side of the first concave cam group on both sides of the intermediate positioning partition plate and the short concave arc on the concave side of the second concave cam group are located at opposite positions, one side of the first concave cam group The long concave arc relative position of the concave wheel and the second concave cam group on the other side lower concave wheel; the one side intermediate cam of the first concave cam group and the other side intermediate cam of the second concave cam group are respectively provided with the upper convex portion And the lower convex portion, and the intermediate cams on the one side are respectively connected to the inner partition and the intermediate positioning partition by a movable lifting structure The upper side intermediate cam is assembled between the intermediate positioning partition and the outer partition by a movable lifting structure; and the upper convex portion and the lower convex portion are respectively directed toward the one side upper concave wheel and the other side a concave wheel, and a side concave wheel and a lower side concave wheel; the two sides of the slot of the intermediate positioning partition and the concave groove on the other side of the second concave cam group and the other side concave wheel are respectively fixed angle control The second shaft can reverse the angle for the first rotation, and the second shaft rotates at the other angle by the first shaft, and then the second shaft can be reversed by an angle for the third segment. When rotating, it is possible to perform multi-stage switching rotation of such a pivot without using a switching device.

In a possible embodiment, the long concave arcs are respectively provided with positioning concave portions at both ends for different rotation stages.

Wherein, the movable lifting structure comprises one side intermediate cam of the first concave cam group and the other intermediate cam of the second concave cam group respectively provided with two side extension portions; the inner partition plate and the intermediate positioning partition plate and the intermediate positioning partition The plate and the outer baffle are respectively provided with opposite slots; the two side extensions of the one side intermediate cam are respectively movably assembled in the opposite slots of the inner partition and the intermediate positioning partition, the other side of the middle side The two side extensions of the cam are respectively movably assembled to the opposite slots of the intermediate positioning partition and the outer partition.

Wherein, the fixed point angle control device comprises two opposite upper positioning bumps and lower positioning bumps on one side surface of the intermediate positioning partition, and the second opposite to the upper positioning bump and the lower positioning bump The concave cam and the other lower concave wheel on the other side of the concave cam group are respectively provided with an upper stopper shoulder and a lower stopper shoulder which set a rotation angle.

In a possible embodiment, the torsion spring group is composed of a plurality of single elastic pieces, and each of the elastic pieces is respectively provided with a shaft hole for passing through the first shaft and the second shaft, and each of the shaft holes is provided with The externally connected notch portion is configured to form a positioning torque when the first shaft and the second shaft are rotated.

10‧‧‧ first axis

11‧‧‧Upper connecting piece

12‧‧‧Internal positioning board

13‧‧‧Internal partition

14‧‧‧ outer partition

15‧‧‧Outer positioning plate

16, 17 ‧ ‧ assembly components

131, 141‧‧‧ slots

20‧‧‧second axis

21‧‧‧ Lower connecting piece

30‧‧‧Torque shrapnel

31‧‧‧Shrap

32, 33‧‧‧ shaft hole

34, 35‧‧ ‧ gap

40‧‧‧First concave cam set

41‧‧‧One side concave wheel

42‧‧‧One side concave wheel

43‧‧‧One side intermediate cam

411‧‧‧short concave arc

421‧‧‧ long concave arc

431, 432‧‧ ‧ extensions on both sides

433‧‧‧Upper convex

434‧‧‧ Lower convex

4211, 4212‧‧‧ positioning recess

50‧‧‧Intermediate positioning partition

51‧‧‧ slots

52‧‧‧Upper positioning bumps

53‧‧‧ positioning bump

60‧‧‧Second concave cam set

61‧‧‧The other side of the concave wheel

62‧‧‧Other side concave wheel

63‧‧‧The other side intermediate cam

611‧‧‧short concave arc

621‧‧‧ long concave arc

612, 622‧‧‧ upper stop shoulder

613, 623‧‧‧ lower stop shoulder

631, 632‧‧‧ both sides of the extension

633‧‧‧Upper convex

634‧‧‧ Lower convex

6211, 6212‧‧‧ positioning recess

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

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

Figure 3 shows a larger detail of the A section in Figure 2.

Figure 4 is a schematic view showing the switching mechanism of the present invention in a closed state.

Fig. 5 is a view showing the state of rotation of the first stage of the switching mechanism of Fig. 4.

Fig. 5A is a view showing the state of the pivot of the present invention in Fig. 5.

Figure 6 is a view showing the state of rotation of the second stage of the switching mechanism of the present invention.

Fig. 6A is a view showing the state of the pivot of the present invention in Fig. 6.

Fig. 7 is a view showing the state of rotation of the third stage of the switching mechanism of the present invention.

Fig. 7A is a view showing the state of the pivot of the present invention in Fig. 7.

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

As shown in FIGS. 1 to 3, the present invention includes a first shaft 10 and a second shaft 20 disposed opposite the first shaft 10. The first shaft 10 and the second shaft 20 are respectively combined with an upper connecting piece. 11 and the connecting piece 21, the upper connecting piece 11 and the lower connecting piece 21 respectively combine a screen display end of an electronic device and a system end (not shown).

The first shaft 10 and the second shaft 20 sequentially pass through an inner positioning plate 12, a torsion spring group 30, and an inner partition plate 13, and pass through a first concave cam group 40 and an intermediate positioning partition 50. And a second concave cam set 60, then passed through an outer partition 14 and an outer positioning plate 15, and then combined by the assembly members 16, 17. The first shaft 10 and the second shaft 20 move through the inner positioning plate 12, the torsion spring group 30, the inner partition 13, the intermediate positioning partition 50, the outer partition 14 and the outer positioning plate 15, and at the same time The first concave cam group 40 is located between the inner partition plate 13 and the intermediate positioning partition 50, and the second concave cam group 60 is located between the intermediate positioning partition 50 and the outer partition 14 on the opposite side, so that The first concave cam set 40 and the second concave cam set 60 are located on both sides of the intermediate positioning partition 50.

The first concave cam set 40 includes a concave wheel 41 on one side, a concave wheel 42 disposed on a side of the concave wheel 41 on the one side, and a concave wheel 41 and a concave side on the one side. a side intermediate cam 43 between the 42; the second concave cam set 60 includes a top side upper concave wheel 61, a lower side concave wheel 62 disposed opposite the lower side upper concave wheel 61, and the other side a second intermediate cam 63 between the upper concave wheel 61 and the other lower concave wheel 62; the first shaft 10 and the second shaft 20 pass through the first constituent elements while passing through the first structure in a linked structure The concave cam 41 and the one side lower concave wheel 42 on one side of the concave cam group 40, and the other side upper concave wheel 61 and the other side lower concave wheel 62 of the second concave cam group 60.

The one-side upper concave wheel 41 and the other-side upper concave wheel 61 of the first concave cam group 40 and the second concave cam group 60 are respectively provided with short concave arcs 411, 611, one side lower concave wheel 42 and the other side lower concave wheel 62, the long concave arcs 421, 621 are respectively provided as the multi-segment rotation angle control device. In this embodiment, the long concave arcs 421, 621 are respectively provided with two positioning recesses 4211, 4212, 6211, 6212; The short concave arcs 411, 611 of the other side upper concave wheel 41 of the first concave cam group 40 and the second concave cam group 60 of the second concave cam group 60 located on both sides of the intermediate positioning partition 50 are located opposite each other. Position (in this embodiment, the short concave arc 411 faces downward, and the short concave arc 611 faces upward); the one side concave wheel 42 of the first concave cam group 40 and the other concave side of the second concave cam group 60 are concave The long concave arcs 421, 621 of the wheel 62 are also in opposite positions (in this embodiment, with the set angle of rotation, the long concave arc 421 is diagonally downward, and the long concave arc 621 is obliquely upward). The one side intermediate cam 43 of the first concave cam group 40 and the other side intermediate cam 63 of the second concave cam group 60 are respectively provided with two side extension portions 431, 432, 631, 632, and upper convex portions 433, 633 and Lower convex portions 434, 634; the two side extension portions 431, 432 of the one side intermediate cam 43 are respectively connected to the opposite slots 131, 51 of the inner partition plate 13 and the intermediate positioning partition 50 by a movable lifting structure. The two side extensions 631, 632 of the other side intermediate cam 63 are respectively coupled to the opposite slots 51, 141 of the intermediate positioning partition 50 and the outer partition 14 by a movable lifting structure; and the upper convex portion 433, The 633 and the lower convex portions 434 and 634 are respectively oriented toward the one side upper concave wheel 41 and the other side upper concave wheel 61, and the one side lower concave wheel 42 and the other side lower concave wheel 62. At the same time, the surface of the slot 51 of the intermediate positioning partition 50 is provided with two opposite upper positioning bumps 52 and lower positioning bumps 53 with respect to one of the upper positioning bumps 52 and the lower positioning bumps 53. The upper and lower concave wheels of the concave cam group (the second concave cam group 60 in this embodiment) (in this embodiment, the other upper concave wheel 61 and the other lower concave wheel 62) are respectively provided with setting rotation. The angled upper stop shoulders 612, 622 and the lower stop shoulders 613, 623 (please also refer to Figures 3 and 4) are provided as fixed point angle control means.

In this embodiment, the torsion spring group 30 is composed of a plurality of single elastic pieces 31, and each of the elastic pieces 31 is respectively provided with a shaft hole 32 of a set size diameter passing through the first shaft 10 and the second shaft 20. And each of the shaft holes 32 and 33 is provided with a notch portion 34, 35 communicating with the outside for the positioning torque required for the stroke of the first shaft 10 and the second shaft 20 to rotate.

Figure 4 is a view showing the switching mechanism of the present invention in a closed state. At this time, the convex portion 433 of the one intermediate cam 43 of the first concave cam group 40 is pressed against the short concave arc 411 of the concave wheel 41 on one side, and the lower convex portion 434 is crimped to the outer peripheral edge of the one side lower concave wheel 42; the second concave cam group 60 presses the upper convex portion 633 against the outer peripheral edge of the other upper concave wheel 61, and the lower convex portion 634 is crimped to the other. One end of the side concave cam 62 is positioned at the concave portion 6211, and at the same time, the lower stop shoulder 613 of the other upper concave wheel 61 is blocked against the upper positioning projection 52 of the intermediate positioning partition 50, and The upper stop shoulder portion 622 of the other side lower concave wheel 62 is caused to abut against the lower positioning projection 53 of the intermediate positioning partition 50. At this time, the state position of the entire pivot is as shown in Fig. 1.

As shown in FIG. 5, when the second shaft 20 is reversed by an angle (100°) in the counterclockwise direction for the first rotation, the one side concave wheel 42 of the first concave cam group 40 is turned into a long length. The concave arc 421 is upward, so that the convex portion 433 on one side intermediate cam 43 can be disengaged from the short concave arc 411 of the one upper concave wheel 41, and is prepared to descend so that the lower convex portion 434 enters the long concave arc 421 of the one lower concave wheel 42. a positioning recess 4212 at one end (refer to FIG. 6); the second concave cam group 60 causes the lower convex portion 634 of the other side intermediate cam 63 to be positioned by the one end along the long concave arc 621 during the one rotation. Moving to the other end positioning recess 6212, the first rotation process is completed, and the rotation state of the entire pivot is as shown in FIG. 5A. As shown in Fig. 6, the first shaft 10 can be rotated forward by an angle (e.g., 180°) in a clockwise direction. The second rotation of the row causes the second concave cam set 60 to move the upper stop shoulder 612 to the upper positioning projection 52 of the intermediate positioning partition 50 due to the rotation of the concave wheel 61 on the other side. The short concave arc 611 of the side upper concave wheel 61 faces the upper convex portion 633 of the other side intermediate cam 63, so that the other side intermediate cam 63 is in the released state, while the one side intermediate cam 43 is forced to fall into the one side lower concave wheel 42. The positioning recess 4212 of one end of the long concave arc 421, at this time, the rotation state of the entire pivot is as shown in FIG. 6A, and is formed by the angle of 100° shown in FIG. 5A through the almost flat state of 180°. ° Angle. As shown in Fig. 7, the second shaft 20 can then be reversed by an angle (e.g., 80) in the counterclockwise direction for the third rotation, until the other side of the second concave cam set 60 is recessed 62. The position of the other end positioning recess 6212 of the long concave arc 621 of the second rotation process is moved to the lower positioning shoulder 53 of the lower positioning shoulder 623 against the lower positioning projection 53 of the intermediate positioning partition 50, in the process, another The side intermediate cam 63 is forced to rise, and the upper convex portion 633 is pressed against the short concave arc 611 of the concave pulley 61 on the other side. At this time, the state position of the entire pivoter is 360° as shown in FIG. 7A, that is, the upper connecting piece 11 is located at 180 degrees from the original position in the upper connecting piece 11 in FIG. The underground connecting piece 21 is located at a position where the lower connecting piece 21 in Fig. 1 is turned 180 degrees from the original position. On the other hand, the first shaft 10 and the second shaft can be folded back to the 0° angle closed state shown in FIG. 1 and FIG. 4 in accordance with the reverse procedure of the above-described multi-step operation.

The invention thus forms a multi-segment switching pivoting device which can perform multi-stage pivotal angular rotation adjustment without using a switching device such as a switching piece or a switching pin, which not only simplifies the constituent elements of such a pivoting device, but also reduces The axial length of the entire pivot is more advantageous for the pivot to lie flat when performing an angular displacement of, for example, 180°, and to be placed in a flat state with the screen display end and the system end of the spread electronic device for placement on the table top.

The above embodiments are only intended to be illustrative of the present invention and are not intended to be limiting, and various modifications and modifications may be made to the skilled person in the art.

Claims (6)

 A multi-segment switching pivot, comprising: a first shaft and a second shaft disposed opposite to the first shaft, wherein the first shaft and the second shaft respectively combine an upper connecting piece and a lower connecting piece, wherein the upper shaft The connecting piece and the lower connecting piece respectively combine a screen display end and a system end of an electronic device; the first axis and the second axis sequentially move through an inner positioning plate, a torsion elastic piece group, an inner partition, An intermediate positioning partition and an outer partitioning plate and an outer positioning plate are further assembled by the assembling member; the first shaft and the second shaft are combined with the interlocking structure and located at the inner partition and the intermediate positioning partition a first concave cam group, and a second concave cam group between the intermediate positioning partition and the outer partition, so that the first concave cam group and the second concave cam group are located on both sides of the intermediate positioning partition Wherein: the first concave cam group comprises a concave wheel on one side, a concave wheel disposed on a side of the concave wheel opposite to the lower side, and a concave wheel on one side and a concave wheel on one side One side intermediate cam; the second concave cam set includes a concave side on the other side a further side concave wheel disposed on the opposite side of the upper concave wheel, and a side intermediate cam located between the other side upper concave wheel and the other side lower concave wheel; the first shaft and the second shaft Passing the one-side upper concave wheel and the one-side lower concave wheel of the first concave cam group, and the other side upper concave wheel and the other side lower concave wheel of the second concave cam group, respectively, in the interlocking structure; the first concave cam The concave wheel on one side of the group and the second concave cam group and the concave wheel on the other side are respectively provided with short concave arcs, and the one lower concave wheel and the other lower concave wheel are respectively provided with long concave arcs for multi-stage rotation angle control. a device; the concave cam on one side of the first concave cam group on both sides of the intermediate positioning partition plate and the short concave arc on the other side of the second concave cam group are located at opposite positions, one side of the first concave cam group a concave position of the concave wheel and the second concave cam group on the other side of the concave wheel; the one side intermediate cam of the first concave cam group and the other side intermediate cam of the second concave cam group are respectively provided with an upper convex a lower portion and a lower convex portion, and the intermediate cams on the one side are respectively connected to the inner partition and the middle by a movable lifting structure Between the plates, the other side intermediate cam is assembled between the intermediate positioning partition and the outer partition by a movable lifting structure; and the upper convex portion and the lower convex portion are respectively oriented toward the one side of the concave wheel and the other a side upper concave wheel, and one side lower concave wheel and the other side lower concave wheel; both side surfaces of the slot of the intermediate positioning partition and the other side upper concave wheel and the other side lower concave wheel of the second concave cam group are respectively fixed Angle control device.    The multi-segment switching pivot device of claim 1, wherein the multi-segment rotation angle control device comprises a plurality of positioning concave portions respectively disposed on the long concave arcs.    The multi-segment switching pivot of the first aspect of the first concave cam group, wherein the one side intermediate cam of the first concave cam group and the other intermediate cam of the second concave cam group are respectively provided with two side extension portions; The partition plate and the intermediate positioning partition plate and the intermediate positioning partition plate and the outer partition plate respectively have opposite slot holes; the two side extension portions of the one side intermediate cam are respectively movably assembled to the inner partition plate and the intermediate positioning partition plate In the opposite slots, the two side extensions of the other side intermediate cam are respectively movably assembled to the opposite slots of the intermediate positioning partition and the outer partition.    The multi-segment switching pivot device of claim 1, wherein one side surface of the intermediate positioning partition is provided with two opposite upper positioning bumps and lower positioning bumps, relative to the upper positioning bumps. And the second concave cam group of the lower concave positioning cam and the other lower concave wheel are respectively provided with an upper stopper shoulder and a lower stopper shoulder which are set to a rotation angle.    The multi-segment switching pivot device of claim 3, wherein the side surface of the slot of the intermediate positioning partition is provided with two opposite upper positioning bumps and lower positioning bumps relative to the upper positioning. The second concave cam group of the second concave cam group of the bump and the lower positioning bump is respectively provided with an upper stopper shoulder and a lower stopper shoulder which are set to a rotation angle.    The multi-segment switching pivot of claim 1, wherein the torsion spring group is composed of a plurality of single elastic pieces, and each of the elastic pieces is respectively provided with an axis for passing through the first shaft and the second shaft. The hole, each of the shaft holes is provided with a notch portion communicating with the outside to form a positioning torque when the first shaft and the second shaft rotate.