Rotating Shaft Mechanism, Support Apparatus, and Foldable Screen Device

Patent metadata

Field	Value
Publication number	US-2024147645-A1
Application number	US-202318548839-A
Country	US
Kind code	A1
Filing date	Jan 4, 2023
Priority date	Jan 18, 2022
Publication date	May 2, 2024
Grant date	—

Abstract

A rotating shaft mechanism, a support apparatus, and a foldable screen device, and relates to the field of foldable screen device technologies. The rotating shaft mechanism includes a rotating shaft base, a shaft cover, a first swing arm, and a first drive mechanism. The shaft cover is located on a back side of the rotating shaft base, the first swing arm is rotatably connected to the rotating shaft base, and the first swing arm can rotate between an unfolded position and a folded position relative to the rotating shaft base. The first drive mechanism is connected between the first swing arm and the shaft cover, and when rotating from the unfolded position to the folded position, the first swing arm drives, by using the first drive mechanism, the shaft cover to move toward the rotating shaft base.

First claim

1 . A rotating shaft mechanism, comprising:
a rotating shaft base; a shaft cover located on a back side of the rotating shaft base; a first swing arm rotatably connected to the rotating shaft base, wherein the first swing arm is configured to rotate between an unfolded position and a folded position relative to the rotating shaft base; and a first drive mechanism connected between the first swing arm and the shaft cover, wherein when rotating from the unfolded position to the folded position, the first swing arm drives, by the first drive mechanism, the shaft cover to move toward the rotating shaft base.

2 . The rotating shaft mechanism of claim 1 , wherein the first drive mechanism comprises a second swing arm that is rotatably connected to the rotating shaft base, the first swing arm is drivably connected to the second swing arm, and the second swing arm is drivably connected to the shaft cover, and wherein when rotating from the unfolded position to the folded position, the first swing arm drives the second swing arm to rotate relative to the rotating shaft base, and further drives, by the second swing arm, the shaft cover to move toward the rotating shaft base.

3 . The rotating shaft mechanism of claim 2 , wherein the first drive mechanism comprises a first sliding groove and a first sliding member, wherein one of the first sliding groove and the first sliding member is disposed on the first swing arm, the other of the first sliding groove and the first sliding member is disposed on the second swing arm, and the first sliding member is slidably connected in the first sliding groove, and wherein the first swing arm is drivably connected to the second swing arm by a sliding pair formed by the first sliding groove and the first sliding member.

4 . The rotating shaft mechanism of claim 3 , wherein a first axis comprises rotation axes of the second swing arm and the rotating shaft base, wherein the first sliding groove has a first end and a second end, and a distance from the first end to the first axis is less than a distance from the second end to the first axis, and wherein when the first swing arm is at the unfolded position, a vertical distance from the first end to a foldable screen is greater than a vertical distance from the second end to the foldable screen, and when the first swing arm rotates from the unfolded position to the folded position, the first sliding member slides from the first end to the second end along the first sliding groove.

5 . The rotating shaft mechanism of claim 2 , wherein the first drive mechanism further comprises an actuating member that is fastened relative to the second swing arm, and the second swing arm is drivably connected to the shaft cover by using the actuating member.

6 . The rotating shaft mechanism of claim 5 , wherein the second swing arm comprises an end part that is drivably connected to the first swing arm, and a distance from the end part to a rotation center of the second swing arm is a first distance, wherein an end part of the actuating member that is drivably connected to the shaft cover is eccentrically disposed relative to the rotation center of the second swing arm, and a distance from the end part of the actuating member to the rotation center of the second swing arm is a second distance, and wherein the first distance is less than the second distance.

7 . The rotating shaft mechanism of claim 5 , wherein the first drive mechanism further comprises a second sliding groove and a second sliding member, wherein one of the second sliding groove and the second sliding member is disposed on the actuating member, the other of the second sliding groove and the second sliding member is disposed on the shaft cover, and the second sliding member is slidably connected in the second sliding groove, and wherein the actuating member is drivably connected to the shaft cover by a sliding pair formed by the second sliding groove and the second sliding member.

8 . The rotating shaft mechanism of claim 4 , further comprising:
a door plate rotatably connected to the first swing arm; and a second drive mechanism connected between the door plate and the rotating shaft base, wherein when rotating from the unfolded position to the folded position, the first swing arm drives, by the second drive mechanism, an end of the door plate that is close to the rotating shaft base to tilt toward a side away from the foldable screen relative to an end that is of the door plate that is away from the rotating shaft base.

9 . The rotating shaft mechanism of claim 8 , wherein the second drive mechanism comprises a door plate swing arm rotatably connected to the rotating shaft base, wherein a third sliding groove is disposed on the door plate, the door plate swing arm slidably penetrates into the third sliding groove, and when the first swing arm rotates from the unfolded position to the folded position, a rotation angle of the door plate swing arm relative to the rotating shaft base is greater than a rotation angle of the first swing arm relative to the rotating shaft base.

10 . The rotating shaft mechanism of claim 2 , wherein there are two first swing arms symmetrically disposed on two opposite sides of the rotating shaft base, wherein there are two first drive mechanisms respectively connected between the two first swing arms and the shaft cover, and wherein the rotating shaft mechanism further comprises a synchronization mechanism connected between the two first swing arms, or connected between second swing arms of the two first drive mechanisms.

11 . The rotating shaft mechanism of claim 10 , wherein the synchronization mechanism comprises a drive slider located between the second swing arms of the two first drive mechanisms, wherein the drive slider is slidably connected to the rotating shaft base in a length direction of the rotating shaft base, and the drive slider is drivably connected to the second swing arms of the two first drive mechanisms, and wherein when rotating from the unfolded position to the folded position, either of the second swing arms of the two first drive mechanisms drives the drive slider to slide in the length direction of the rotating shaft base, and drives the other second swing arm to synchronously rotate from the unfolded position to the folded position.

12 . The rotating shaft mechanism of claim 11 , wherein one of a spiral sliding groove and a slider is disposed on the drive slider, and the other of the spiral sliding groove and the slider is disposed on the second swing arm, and wherein a center line of a spiral extension path of the spiral sliding groove is parallel to a slidable direction of the drive slider, and the slider is slidably disposed in the spiral sliding groove.

13 . The rotating shaft mechanism of claim 3 , further comprising a damping mechanism disposed between the first swing arm and the rotating shaft base, or disposed between the first sliding groove and the first sliding member, or disposed between the second swing arm and the rotating shaft base.

14 . The rotating shaft mechanism of claim 13 , wherein an end surface of the first sliding groove in a length direction of the rotating shaft base is a friction surface, wherein the damping mechanism is connected to the first sliding member, and when sliding along the first sliding groove, the first sliding member drives the damping mechanism to move along the friction surface, and wherein the damping mechanism comprises a friction member and an elastic member, the friction member is located on a side faced by the friction surface, and the elastic member is configured to apply, to the friction member, elastic force point

Assignees

• Honor Device Co Ltd

Inventors

• Zhang Yaolei
• Zhou Guotong
• Yan Bin
• Zhang Yihe

Classifications

• H05K5/0226 Primary

  Hinges · CPC title

• F16C11/04 Primary

  Pivotal connections (hinges for doors, windows or wings E05D) · CPC title

• H04M1/022 Primary

  The hinge comprising two parallel pivoting axes · CPC title

• H04M1/0268

  including a flexible display panel · CPC title

• G06F1/1681

  Details related solely to hinges (hinge details related to the transmission of signals or power are classified in G06F1/1683) · CPC title