TWM541536U - Thin biaxial pivot - Google Patents

Description

Thinned double shaft pivot

The present invention relates to a thinned double-axis pivot that effectively reduces the longitudinal total height of the power zone of such a pivot to thin the pivot and reduce the rotational stress experienced by the pivot during operation.

Most mobile electronic devices such as notebook computers use a dual-axis pivot to control the opening or closing action of the display screen cover and the host system end. Such a two-axis pivot device basically has two opposite mandrels, so that the two opposite cores The axis can be synchronized during the opening and closing of the display screen cover and the host system.

The existing two-axis pivoting device usually has a fixed receiving frame area, a power area and a torsion area arranged in series on the shafts of the two opposite mandrels, so that the fixed receiving frame area is respectively connected to display the upper cover of the screen and the host system end. And through the power zone to convey the screen cover and the host system end opening and closing process to achieve the two-axis co-movement, while forming the positioning torque through the torsion zone.

Conventional two-axis pivots must use a spur gear set to transmit power, making it difficult to reduce the longitudinal height and thickness of the entire biaxial pivot. In the evolving process of mobile electronic devices such as notebook computers, the product is thinned. It has become a trend that such dual-axis pivots using a spur gear power pack are not adequately suited for use in thinned electronic devices.

The purpose of this creation is to provide a thinned double-axis pivot that enables a dual-axis pivot The overall thickness is thinned to suit the design trend of such electronic devices.

The purpose of the present invention is to provide a thinned double-axis pivot that can effectively reduce the rotational stress experienced by the pivoting device during operation.

In order to achieve the above objective, the present invention includes: a first mandrel and a second mandrel, wherein the first mandrel and the second mandrel have a set length shaft, and the fixed body is sequentially disposed on the rod body a frame area, a power zone and a torsion zone; the power zone is respectively provided with non-codirectional left-handed and right-handed helical gears that can be engaged with each other on the rods of the first mandrel and the second mandrel; The two-axis co-rotation of the left-handed and right-handed helical gears in the same direction replaces the existing spur gear meshing transmission mechanism, which can effectively shorten the longitudinal height of the entire pivot and thin such a double-axis pivot.

Wherein, the non-codirectional left-handed and right-handed helical gears are more stable integrally formed with the shafts of the first mandrel and the second mandrel.

Wherein, the left-handed and right-handed helical gears of the non-codirectional left-handed and right-handed helical gears each have an angle of 45 degrees to reduce the rotational stress experienced during the rotating operation.

Wherein, the fixed frame area is respectively provided with an upper fixing frame and a lower fixing frame at one end of the first mandrel and the second mandrel, and the upper fixing frame and the lower fixing frame are selectable And riveting and fixing one end of the first mandrel and the second mandrel shaft respectively or in combination with a preset package structure.

In a possible embodiment, the torsion zone is arranged in a torsion stack by a plurality of torsion members, and the torsion member can preset an upper perforation and a lower perforation for respectively moving through the first mandrel and the second core. The shaft, the upper perforation and the lower perforation are respectively provided with a torsion notch that is open to the outside.

In another possible embodiment, the torsion zone may preset a plurality of positioning torsion members to be reversely arranged in a torsion structure, and the positioning torsion members are provided with two opposite straight flat flanges on one side, and A positioning torque gap is formed between the ends of the two straight flat flanges.

10‧‧‧First mandrel

20‧‧‧Second mandrel

30‧‧‧Fixed Shelf Area

31, 310‧‧‧Upper support

32, 320‧‧‧ fixed bracket

40‧‧‧Power Zone

41, 42‧‧‧ Non-co-rotating left-handed and right-handed helical gears

50, 50A, 50B‧‧‧ Torsion Zone

51‧‧‧ Positioning Shelf

52‧‧‧shims

53‧‧‧Torque shrapnel

60‧‧‧Fixed components

311, 321‧‧ ‧ package structure

501‧‧‧ Torque parts

502‧‧‧Perforated

503‧‧‧ underperture

504, 505‧‧‧ Torque gap

506‧‧‧ Positioning Torque Parts

507, 508‧‧‧ straight flat folding

509‧‧‧ Torque 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. 2A shows an enlarged view of the second gear set.

Fig. 3 is a schematic enlarged view showing the relative operation of the gear set of Fig. 1.

Fig. 4 is a front perspective view showing the operation of Fig. 1 at another angular position.

Fig. 5 is a view showing the state of actuation of Fig. 4.

Fig. 6 is a perspective view showing the second embodiment of the present creation.

Fig. 6A is an enlarged view showing a single stacked torque member of Fig. 6.

Fig. 7 is a perspective view showing the third embodiment of the present creation.

Fig. 7A is an enlarged view showing the axial grooved torque member 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 Figures 1, 2 and 2A, the present invention comprises a first mandrel 10 and a second mandrel 20, the first mandrel 10 and the second mandrel 20 having a set length shaft and The fixed body area 30, the power zone 40 and the torsion zone 50 are sequentially arranged on the rod body.

The fixed frame area 30 is respectively provided with an upper fixing frame 31 and a lower fixing frame 32 at one end of the first mandrel 10 and the second mandrel 20 to respectively connect the notebooks. a display screen of the mobile electronic device such as a computer and a host system end (not shown). In this embodiment, the upper fixed frame 31 and the lower fixed frame 32 are respectively coupled to the first mandrel 10 and the second The shaft of the mandrel 20 is riveted and fixed at one end.

The power zone 40 is respectively provided with non-codirectional left-handed and right-handed helical gears 41 and 42 that are engageable with each other on the rods of the first mandrel 10 and the second mandrel 20, in this embodiment. The non-codirectional left-handed and right-handed helical gears 41, 42 are integrally formed by the shafts of the first mandrel 10 and the second mandrel 20, respectively, and the non-co-rotating left-handed and right-handed mutually engaged The helical gears 41, 42 are non-codirectional left and right rotating gears, for example, one of which is a left-handed gear and the other of which is a right-handed gear, and in the preferred embodiment, the left-handed and right-handed angles Preferably, each angle is 45 degrees to reduce the rotational stress experienced during the rotation operation.

The torque zone 50 includes a plurality of positioning brackets 51 that move through the first mandrel 10 and the second mandrel 20, and the first mandrel 10 and the second mandrel, in this embodiment. 20 sets of consecutive spacers 52 and a plurality of torsion springs 53 moving through the first mandrel 10 and the second mandrel 20, such as a cup spring, are arranged side by side to form the torsion zone 50, and then The other ends of the first mandrel 10 and the second mandrel 20 are locked by a fixing member 60 such as a nut or a buckle to position the entire pivot.

As shown in FIGS. 3 to 5, the present invention uses the non-codirectional left-handed and right-handed helical gears 41, 42 in the power zone 40, so that the first mandrel 10 and the second mandrel 20 are electronic devices. When the screen cover or the main system end is opened and closed, a rotation operation is generated, and when any of the non-codirectional left-handed and right-hand helical gears 41 and 42 is rotated, the other gear is reversely rotated to form a pivot. The dual axis synchronization function. Since the non-codirectional left-handed and right-handed helical gears 41, 42 having a small longitudinal total height are used, the entire pivot can be effectively thinned.

In the second embodiment of the present invention shown in FIG. 6, the torsion zone 50A is arranged side by side by a plurality of torsion members 501 into a desired torque stacking structure. The torsion member 501 is provided with an upper perforation 502 and a lower perforation 503. The first mandrel 10 and the second mandrel 20 are respectively moved, and the upper perforation 502 and the lower perforation 503 are respectively provided with torsion notches 504 and 505 which are open outward.

In the third embodiment of the present invention shown in FIGS. 7 and 7A, the torsion zone 50B is reversely aligned by a plurality of positioning torsion members 506 into a desired torsion structure, and the positioning torsion member 506 is on one side. Having two opposing straight flanges 507, 508 and forming a desired positioning torque gap 509 between the ends of the two opposite straight flanges 507, 508; due to the space in a thinner pivot structure Small, the two opposite straight flanges 507, 508 can cooperate with two opposite mandrels for interlocking the upper and lower opposite cutting planes to form an automatic positioning function instead of a cam or the like. At the same time, it can also be seen that the upper fixed frame 310 and the lower fixed frame 320 can be fixedly assembled with one end of the mandrel in the package structure 311, 321 for convenient thinning. The riveted fixing structure as described above is replaced in a small space.

The creation thus forms an improved design of the two-axis pivot, which can effectively shorten the entire pivot by replacing the existing spur gear transmission mechanism by two-axis co-rotation through two non-codirectional left-hand and right-hand helical gears. The longitudinal height makes this type of biaxial pivot suitable for thin electronic products. At the same time, the entire two-axis articulated pivot can effectively reduce the rotational stress it is subjected to during operation.

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 mandrel

20‧‧‧Second mandrel

30‧‧‧Fixed Shelf Area

31‧‧‧Upper support

32‧‧‧Under fixed frame

40‧‧‧Power Zone

41, 42‧‧‧ Non-co-rotating left-handed and right-handed helical gears

50‧‧‧Torque Zone

60‧‧‧Fixed components

Claims (9)

A thinned two-axis pivoter includes: a first mandrel and a second mandrel, wherein the first mandrel and the second mandrel have a set length shaft, and are sequentially disposed on the rod body The fixed frame area, the power zone and the torsion zone are respectively disposed on the rods of the first mandrel and the second mandrel, and are respectively non-codirectional left-handed and right-handed helical gears that can be engaged with each other. The thinned biaxial pivoting device according to claim 1, wherein the non-coaxial left-handed and right-handed helical gears are a shaft-integrated structure of the first mandrel and the second mandrel. The thinned double-axis pivoting device of claim 1, wherein the non-codirectional left-handed and right-handed helical gears have a left-handed and right-handed angle of 45 degrees each. The thinned biaxial pivoting device of claim 1, wherein the fixed receiving frame is provided with an upper fixing bracket at one end of the first mandrel and the second mandrel, respectively. The fixed bracket and the lower fixing bracket are respectively riveted and fixed to one end of the first mandrel and the second mandrel shaft. The thinned biaxial pivoting device of claim 1, wherein the fixed receiving frame is provided with an upper fixing bracket at one end of the first mandrel and the second mandrel, respectively. The fixed frame and the lower fixed frame are respectively provided with a wrapping structure and are riveted and fixed to one end of the first mandrel and the second mandrel. The thinned biaxial pivoting device of claim 1, wherein the torsion zone is arranged side by side into a torsion stack structure by a plurality of torsion members. The thinned biaxial pivoting device of claim 6, wherein the torsion member is provided with an upper perforation and a lower perforation for respectively moving through the first mandrel and the second mandrel, Upper perforation The lower perforations are respectively provided with torsion notches that are open to the outside. The thinned biaxial pivoting device of claim 1, wherein the torsion zone is reversely arranged by a plurality of positioning torsion members and arranged in a torsion structure. The thinned biaxial pivoting device according to claim 8, wherein the positioning torsion member is provided with two opposite straight flat edges on one side, and at the ends of the two opposite straight flat flanges. A positioning torque gap is formed between them.