TWM666632U - Pivot mechanism - Google Patents

Abstract

The present application is a pivot mechanism, including a rotating support, a support lever assembly, a toothed bar assembly and a pivot assembly. The support lever assembly is movably connected to the rotating support and includes a crossbar, a first support lever and a second support lever. The first support lever and the second support lever are configured correspondingly. The toothed bar assembly includes a first toothed bar and The second gear, the first gear and the second gear are respectively connected to the first bracket lever and the second bracket lever and are arranged correspondingly; the pivot assembly includes a first pivot and a second pivot, each pivot includes a rotating shaft, a cam assembly and an elastic body, the rotating shaft penetrates the elastic body and the cam assembly and has a gear meshed with the first gear for transmission. In this way, not only the force is evenly distributed and the supporting force is sufficient, but also the action is stable and reliable.

Description

Pivot mechanism

The present application relates to the technical field of a pivot mechanism, and in particular to a pivot mechanism used in electronic devices.

Traditional laptops are mostly equipped with a single screen. If more screens or a larger viewing size is needed, an external screen is usually required, which causes inconvenience in use. In addition, although these dual-screen solutions can expand the viewing size, they cannot adjust the position of the viewing area, which affects their convenience in use.

Related companies have therefore developed dual-screen notebook computers to meet a wide range of usage needs, in which the hinge mechanism plays a key role in opening or closing the screen. In the process of folding the small screen, the existing hinge mechanism often causes various problems such as unsmooth folding or unstable closing due to uneven force and insufficient support.

In view of this, the author has devoted himself to the research and application of the above existing technologies, trying his best to solve the above problems, which has become the goal of the author's improvement.

One purpose of this application is to provide a pivot mechanism that not only has even force and sufficient supporting force, but also operates stably and reliably.

In order to achieve the above-mentioned purpose, the present application provides a pivot mechanism, including a rotating support, a support lever assembly, a tooth assembly and a pivot assembly, wherein the support lever assembly is movably connected to the rotating support, the support lever assembly includes a crossbar, a first support lever and a second support lever, the first support lever and the second support lever are respectively pivoted to the crossbar and are correspondingly arranged; the tooth assembly includes a first tooth and a second tooth, one end of the first tooth is pivoted to the first support lever, and one end of the second tooth is pivoted to the second support lever. and is configured corresponding to the first gear; the pivot assembly includes a first pivot and a second pivot configured coaxially with the first pivot, the first pivot includes a first rotating shaft, a first cam set and a first elastic body, the first rotating shaft penetrates the first elastic body and the first cam set and has a first gear meshing with the first gear for transmission, the second pivot includes a second rotating shaft, a second cam set and a second elastic body, the second rotating shaft penetrates the second elastic body and the second cam set and has a second gear meshing with the second gear for transmission.

The detailed description and technical contents of this application are described below with the help of drawings. However, the attached drawings are only provided for reference and description and are not used to limit this application.

Please refer to Figures 1 to 8. The present application provides a pivot mechanism, which is mainly used in an electronic device 8. The electronic device 8 can be a laptop with dual screens. The laptop of this embodiment has a seat plate 81, a large screen 82 (see Figure 6), a small screen 83 (see Figure 6) and other related devices and components. The pivot mechanism mainly includes a rotating bearing frame 10, a bracket lever assembly 20, a gear assembly 30 and a pivot assembly 40.

Please refer to Figures 1 to 3. The swivel support frame 10 is located between the large screen 82 and the base plate 81 of the electronic device 8 (as shown in Figure 6) to provide support for the large screen 82 to be lifted up or covered down. The bracket lever assembly 20, the gear assembly 30 and the pivot assembly 40 are arranged below the small screen 83 (as shown in Figure 6).

The support lever assembly 20 is movably connected to the rotating support frame 10, and mainly includes a cross bar 21, a first support lever 22, a second support lever 23 and a vertical plate 24. The cross bar 21 is connected to the rotating support frame 10 through the vertical plate 24. One end of the first support lever 22 is hinged to one end of the cross bar 21, and one end of the second support lever 23 is hinged to the other end of the cross bar 21 and is configured corresponding to the first support lever 22.

The gear assembly 30 mainly includes a first gear 31 and a second gear 32. One end of the first gear 31 is pivoted to one end of the first bracket lever 22 away from the aforementioned cross bar 21. One end of the second gear 32 is pivoted to one end of the second bracket lever 23 away from the aforementioned cross bar 21 and is configured corresponding to the first gear 31. The seat plate 81 has two limit bars 811. The first gear 31 and the second gear 32 are respectively located on one side of each limit bar 811 to limit the moving direction of the first gear 31 and the second gear 32.

Continuing to refer to FIG. 4 and FIG. 5 , the pivot assembly 40 mainly includes a first pivot 41 and a second pivot 42 coaxially arranged with the first pivot 41. The first pivot 41 includes a first rotating shaft 411, a first cam assembly 412 and a first elastic body 413. The first rotating shaft 411 penetrates the first elastic body 413 and the first cam assembly 412, and the first rotating shaft 411 has a first gear 4111 meshing with the first gear 31 for transmission. The second pivot 42 includes a second shaft 421, a second cam set 422 and a second elastic body 423. The second shaft 421 penetrates the second elastic body 423 and the second cam set 422, and the second shaft 421 has a second gear 4211 meshing with the second gear 32 for transmission.

In one embodiment, the first rotating shaft 411 further includes a first baffle 4112, a first belt rotating middle section 4113 and a first belt rotating end section 4114. The first baffle 4112 is located at the side of the first gear 4111 and clamps the first gear 31 together with one of the aforementioned limiting strips 811. The first belt rotating middle section 4113 extends away from the first baffle 4112, and the first belt rotating end section 4114 extends away from the first belt rotating middle section 4113. Similarly, the second rotating shaft 421 also includes a second baffle 4212, a second belt rotating middle section 4213 and a second belt rotating end section 4214. The second baffle 4212 is located at the side of the second gear 4211 and clamps the second gear 32 by cooperating with the aforementioned other limiting strip 811. The second belt rotating middle section 4213 extends away from the second baffle 4212, and the second belt rotating end section 4214 extends away from the second belt rotating middle section 4213.

In one embodiment, the first cam assembly 412 includes a first movable cam 4121 and a first static cam 4122. The first movable cam 4121 is sleeved on the first rotating middle section 4113 and clamps the first elastic body 413 together with the first baffle 4112. The first movable cam 4121 rotates along with the first rotating shaft 411. The second cam assembly 422 also includes a second movable cam 4221 and a second static cam 4222. The second movable cam 4221 is sleeved on the second rotating middle section 4213 and clamps the second elastic body 423 together with the second baffle 4212. The second movable cam 4221 rotates along with the second rotating shaft 421.

In one embodiment, the pivot assembly 40 further includes a fixed plate 43, a pivot plate 44 and a sleeve 45, wherein the aforementioned first static cam 4122 and the second static cam 4222 are fixedly connected to the corner ends of the fixed plate 43, one side of the pivot plate 44 is fixed to the seat plate 81, and the other side of the pivot plate 44 and the sleeve 45 are connected by passing through the first rotating shaft 411 and the second rotating shaft 421, wherein the first belt rotating end section 4114 and the second belt rotating end section 4214 are respectively connected to the sleeve 45, so that the sleeve 45 rotates following the first rotating shaft 411 and the second rotating shaft 421.

Please refer to FIG. 3 again. In one embodiment, the pivot mechanism further includes a support frame 50 and a bearing assembly 60. The support frame 50 is disposed on the lower side of the gear assembly 30 and connected to the pivot assembly 40 through the fixing plate 43. The bearing assembly 60 mainly includes a first bearing 61 and a second bearing 62. The first bearing 61 and the second bearing 62 are disposed on opposite sides of the support frame 50 to provide the support frame 50 with sliding movement.

Please refer to Figures 6 to 8. When the large screen 82 is closed, it is located above the small screen 83. One side of the large screen 82 is connected to the rotating support frame 10, and the small screen 83 is fixed to the base plate 81. The fixed plate 43 of the pivot assembly 40 is connected to the support frame 50, and the pivot plate 44 of the pivot assembly 40 is connected to the base plate 81. The side of the support frame 50 away from the fixed plate 43 is slidably connected to the support seat assembly 60; the first rotating shaft 411 of the pivot assembly 40 is engaged with the first gear 31 through its first gear 4111 for transmission.

Please refer to FIG. 9 to FIG. 12. During operation, the large screen 82 is lifted upward, and the support frame 10 is rotated to push the longitudinal plate 24 out, and the crossbar 21, the first bracket lever 22 and the second bracket lever 23 are displaced, and the first gear 31 and the second gear 32 are respectively engaged with the first gear 4111 and the second gear 4211 for transmission, and the first gear 4111 and the second gear 4211 rotate to drive the first shaft 411 and the second shaft 421 to rotate accordingly, and the first shaft 411 and the second shaft 421 rotate. When the first movable cam 4121 and the second movable cam 4221 are engaged and positioned relative to the first static cam 4122 and the second static cam 4222, the sleeve 45 rotates along with the first rotating shaft 411 and the second rotating shaft 421. The first movable cam 4121 and the second movable cam 4221 act on the first static cam 4122 and the second static cam 4222, so that the other end of the support frame 50 slides relative to the first bearing seat 61 and the second bearing seat 62, and the seat plate 81 supporting the small screen 83 rises upward.

The above is only the preferred embodiment of the present invention and is not intended to limit the patent scope of the present invention. Other equivalent variations that utilize the patent spirit of the present invention should all fall within the patent scope of the present invention.

<This application> 10: Rotating support frame 20: Support lever assembly 21: Crossbar 22: First support lever 23: Second support lever 24: Vertical plate 30: Gear assembly 31: First gear 32: Second gear 40: Pivot assembly 41: First pivot 411: First rotating shaft 4111: First gear 4112: First baffle ring 4113: First belt rotating middle section 4114: First belt rotating end section 412: First cam assembly 4121: First moving cam 4122: First static cam 413: First elastic body 42: Second pivot 421: Second rotating shaft 4211: Second gear 4212: Second baffle ring 4213: Second belt rotating middle section 4214: Second belt rotating end section 422: Second cam assembly 4221: Second movable cam 4222: Second static cam 423: Second elastic body 43: Fixed plate 44: Pivot plate 45: Sleeve 50: Support frame 60: Seat assembly 61: First seat 62: Second seat 8: Electronic device 81: Seat plate 811: Limit strip 82: Large screen 83: Small screen

FIG. 1 is a schematic diagram of the hinge mechanism of the present application applied to an electronic device assembly.

FIG. 2 is a perspective view of the hinge mechanism of the present application applied to an electronic device assembly.

FIG. 3 is a bottom view of the hinge mechanism of the present application applied to an electronic device.

FIG. 4 is a schematic diagram of the combination of the gear assembly and the pivot assembly of the present application.

FIG. 5 is an exploded view of the pivot assembly of the present application.

FIG. 6 is a cross-sectional view (I) of the hinge mechanism of the present application applied to an electronic device assembly.

FIG. 7 is a cross-sectional view (II) of the hinge mechanism of the present application applied to an electronic device assembly.

FIG8 is a cross-sectional view (III) of the hinge mechanism of the present application applied to an electronic device assembly.

FIG. 9 is a schematic diagram (I) showing the application of the hinge mechanism in use in an electronic device.

FIG. 10 is a schematic diagram (II) showing the application of the hinge mechanism in use in an electronic device.

FIG. 11 is a cross-sectional view (I) of the hinge mechanism of the present application when it is used in an electronic device.

FIG. 12 is a cross-sectional view (II) of the hinge mechanism of the present application when it is used in an electronic device.

10: Rotating support frame

20: Bracket lever assembly

30: Gear assembly

31: First tooth

32: Second tooth

40: Pivot assembly

8: Electronic devices

81: Seat plate

811: Limit bar

Claims (8)

A pivot mechanism includes: a rotating support frame; a support lever assembly movably connected to the rotating support frame, the support lever assembly includes a crossbar, a first support lever and a second support lever, the first support lever and the second support lever are respectively pivoted to the crossbar and are correspondingly arranged; a tooth assembly includes a first tooth and a second tooth, one end of the first tooth is pivoted to the first support lever, one end of the second tooth is pivoted to the second support lever and is correspondingly arranged with the first tooth; and A pivot assembly includes a first pivot and a second pivot coaxially arranged with the first pivot, the first pivot includes a first rotating shaft, a first cam set and a first elastic body, the first rotating shaft penetrates the first elastic body and the first cam set and has a first gear meshing with the first gear, the second pivot includes a second rotating shaft, a second cam set and a second elastic body, the second rotating shaft penetrates the second elastic body and the second cam set and has a second gear meshing with the second gear. The pivot mechanism as described in claim 1 further includes a support frame, which is arranged on the lower side of the gear assembly and connected to the pivot assembly. The pivot mechanism as described in claim 2 further includes a bearing seat assembly, which includes a first bearing seat and a second bearing seat. The first bearing seat and the second bearing seat are arranged on opposite sides of the support frame to provide sliding movement of the support frame. A pivot mechanism as described in claim 1, wherein the pivot assembly further includes a fixed plate, the first cam set includes a first static cam, the second cam set includes a second static cam, and the first static cam and the second static cam are fixedly connected to the fixed plate. A pivot mechanism as described in claim 4, wherein the pivot assembly further includes a pivot plate, the first shaft further includes a first rotating middle section, the first cam set further includes a first movable cam, the first rotating middle section sequentially passes through the first movable cam, the first static cam and the pivot plate, the second shaft further includes a second rotating middle section, the second cam set further includes a second movable cam, the first rotating middle section sequentially passes through the second movable cam, the second static cam and the pivot plate, thereby causing the first movable cam and the second movable cam to rotate following the first shaft and the second shaft. A pivot mechanism as described in claim 5, wherein the pivot assembly further includes a sleeve, the first rotating shaft further includes a first rotating end segment, the second rotating shaft further includes a second rotating end segment, the first rotating end segment and the second rotating end segment are used to be connected to the sleeve together, so that the sleeve rotates following the first rotating shaft and the second rotating shaft. A pivot mechanism as described in claim 5, wherein the first pivot further includes a first elastic body, the second pivot further includes a second elastic body, the first rotating shaft further includes a first baffle ring, the second rotating shaft further includes a second baffle ring, the first elastic body is clamped between the first baffle ring and the first movable cam, and the second elastic body is clamped between the second baffle ring and the second movable cam. A pivot mechanism as described in claim 1, wherein the support lever assembly further includes a longitudinal plate, and the transverse rod is connected to the rotating support frame through the longitudinal plate.

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