WO-2026092137-A1 - ROTATING SHAFT MECHANISM, SUPPORT APPARATUS, AND FOLDING DEVICE

WO2026092137A1WO 2026092137 A1WO2026092137 A1WO 2026092137A1WO-2026092137-A1

Abstract

A rotating shaft mechanism (23), a support apparatus (20), and a folding device (100). The rotating shaft mechanism (23) comprises a base (231), a first structural member, and a first support member (238). The first structural member can rotate around a first axis relative to the base (231). The first support member (238) comprises first support sections (2381) and second support sections (2382) which are connected to each other, and the first support sections (2381) and the second support sections (2382) are arranged along the extension direction of the first axis; each of the first support sections (2381) is provided with a connection structure, and the first support member (238) is connected to the first structural member by means of the connection structure; and each of the first support sections (2381) comprises a metal structure, and each of the second support sections (2382) comprises a plastic structure. The first support member (238) is formed by connecting the first support sections (2381) and the second support sections (2382) which are made of different materials, so that the flatness of a support surface is good, thereby ensuring the support effect, and improving the reliability of the rotating shaft mechanism.

Inventors

ZHANG, Yaolei
MAO, Yongbo
YU, Dengpan
LI, Qiancheng

Assignees

荣耀终端股份有限公司

Dates

Publication Date: 20260507
Application Date: 20251014
Priority Date: 20241031

Claims (20)

A pivot mechanism for a folding device, the folding device including a folding screen, characterized in that it comprises: Base; A first structural member, which is rotatable relative to the base; A first support member is used to support the foldable screen portion. The first support member includes a first support segment and a second support segment that are connected to each other and made of different materials. The first support segment and the second support segment are arranged along the length direction of the first support member. The first support member is connected to the first structural member. The first support segment includes a metal structure.
The rotating shaft mechanism as described in claim 1 is characterized in that the first support section is a metal structure.
The rotating shaft mechanism as described in claim 1 or 2 is characterized in that the second support section comprises a plastic structure.
The rotating shaft mechanism as described in claim 3 is characterized in that the second support section is a plastic structure.
The rotating shaft mechanism according to any one of claims 1-4 is characterized in that, The material of the second support segment includes at least one of liquid crystal polymer, polyamide, carbon fiber reinforced liquid crystal polymer, glass fiber reinforced liquid crystal polymer, carbon fiber reinforced polyamide, and glass fiber reinforced polyamide.
The rotating shaft mechanism as described in claim 5, wherein the material of the second support section is glass fiber reinforced polyamide.
The rotating shaft mechanism according to any one of claims 1-6 is characterized in that, The material of the first support segment includes at least one of aluminum alloy, titanium alloy, and stainless steel.
The rotating shaft mechanism according to any one of claims 1-7 is characterized in that, The first support section and the second support section are an integral structural component.
According to claim 8, the rotating shaft mechanism is characterized in that the first support section and the second support section are integral structural parts formed by injection molding process.
The rotating shaft mechanism according to any one of claims 1-9 is characterized in that there are multiple first support segments and multiple second support segments, and the first support segments and the second support segments are arranged alternately along the length direction of the first support member.
The rotating shaft mechanism according to any one of claims 1-9 is characterized in that it further includes a third support section, the third support section being a metal structure; along the length direction of the first support member, the two ends of the second support section are respectively connected to the first support section and the third support section.
The rotating shaft mechanism according to any one of claims 1-11 is characterized in that, The first support segment has a first end face facing the second support segment, and the second support segment has a second end face facing the first support segment, with the second end face being fitted and connected to the first end face.
The rotating shaft mechanism as described in claim 12 is characterized in that one of the first end face and the second end face has a first groove, and the other has a first protrusion, wherein the first protrusion is located within the first groove.
The rotating shaft mechanism according to claim 13 is characterized in that, The first support member has a first support surface and a first surface facing away from each other, and the first support surface and the first surface are arranged along the thickness direction of the first support member; The first groove penetrates the first support surface; and/or the first groove penetrates the first surface.
The rotating shaft mechanism according to claim 14 is characterized in that, The first groove penetrates the first support surface, and the opening of the first groove on the first support surface is a first opening; along the arrangement direction of the first support surface and the first surface, at least a portion of the width of the first protrusion in a first direction is greater than the width of the first opening in the first direction; and/or, The first groove penetrates the first surface, and the opening of the first groove on the first surface is the second opening; along the arrangement direction of the first support surface and the first surface, at least a portion of the width of the first protrusion in the first direction is greater than the width of the second opening in the first direction. Wherein, the first direction is parallel to the first support surface and perpendicular to the arrangement direction of the first support segment and the second support segment.
The rotating shaft mechanism according to any one of claims 13-15 is characterized in that, The first support member has a first support surface; Along the direction from the opening of the first groove to the bottom wall, at least a portion of the width of the first protrusion in the first direction is greater than the width of the opening of the first groove in the first direction; wherein, the first direction is parallel to the first support surface and perpendicular to the arrangement direction of the first support segment and the second support segment.
The rotating shaft mechanism according to any one of claims 13-16 is characterized in that, The first support segment also has a first sub-support surface and a first sub-surface facing away from each other; The first end face has the first groove, which penetrates one of the first sub-support surface and the first sub-surface. The other of the first sub-support surface and the first sub-surface has a second groove, a portion of which penetrates the sidewall of the first groove, and the first protrusion fills the first groove and the second groove.
The rotating shaft mechanism according to any one of claims 1-17 is characterized in that the first support section has a connecting structure, and the first support member is connected to the first structural member through the connecting structure.
The rotating shaft mechanism according to claim 18 is characterized in that, The first structural component includes a first swing arm, one end of which is rotatably connected to the base to allow the rotating shaft mechanism to move between an unfolded state and a folded state.
The rotating shaft mechanism according to claim 19 is characterized in that, The first swing arm is provided with a sliding block, the first support section has a first sliding groove, the first sliding groove forms the connection structure, and the sliding block is slidably disposed in the first sliding groove.

Description

Rotating mechanism, support device and folding device This application claims priority to Chinese Patent Application No. 202411554515.6, filed with the State Intellectual Property Office of China on October 31, 2024, entitled "Rotating Mechanism, Support Device and Folding Equipment", the entire contents of which are incorporated herein by reference. Technical Field This application relates to the field of folding equipment technology, and in particular to a pivot mechanism, a support device, and a folding device. Background Technology With the advancement of technology, large-screen devices are becoming increasingly popular among consumers. To address the issues of traditional tablets being too large and inconvenient to carry, foldable screen devices have emerged. Foldable screen devices include a support device for supporting the foldable screen. This support device comprises two side shells and a hinge mechanism connecting the two side shells. The hinge mechanism supports the bendable portion of the foldable screen and is the core component of the foldable screen device. The hinge mechanism typically includes a support component. When the foldable screen device is in the unfolded state, the support surface of this component provides support for the foldable screen. The drop and impact reliability of the support component plays a crucial role in the overall reliability of the foldable screen device. Furthermore, the precision of the support component significantly impacts the performance of the foldable screen device; for example, the flatness of the support component determines the display effect of the foldable screen. In related technologies, the precision and reliability of the support component are often poor, which in turn leads to poor precision and reliability of the hinge mechanism. Summary of the Invention This application provides a pivot mechanism, a support device, and a folding device to address the problem of how to improve the reliability of the pivot mechanism. To achieve the above objectives, the embodiments of this application adopt the following technical solutions: In a first aspect, embodiments of this application provide a rotating shaft mechanism, which includes a base, a first structural member, and a first support member. The first structural member is rotatable relative to the base about a first axis. The first support member includes a first support segment and a second support segment connected to each other, the first support segment and the second support segment being arranged along the extension direction of the first axis; the first support segment has a connecting structure, and the first support member is connected to the first structural member through the connecting structure; the first support segment includes a metal structure, and the second support segment includes a plastic structure. The hinge mechanism provided in this application embodiment, by including a metal structure in the first support segment, achieves better strength and rigidity in the first support segment, thereby improving the overall strength and rigidity of the first support member and its support reliability. By including a plastic structure in the second support segment, the weight of the second support segment is reduced, resulting in a lighter overall weight for the first support member, which is beneficial for the thinner and lighter design of the hinge mechanism, and consequently, for the thinner and lighter design of the folding device using this hinge mechanism. Furthermore, by connecting the first support member with the second support segment and the second support segment, which are made of different materials, the length dimensions of the first and second support segments are relatively small. During actual manufacturing, the processing tolerances are small, resulting in higher precision. The dimensional tolerance in the length direction of the first support member is small, and the flatness of the first support surface is good, ensuring the effective support of the first support member for other components (such as the folding screen). In some possible implementations of the first aspect, the first support segment and the second support segment are integral structural components formed by injection molding. This design ensures a high connection strength between the first and second support sections, guaranteeing the reliability of the first support component. Simultaneously, the high degree of automation and efficiency of the injection molding process improves the production efficiency of the first support component, thereby enhancing the overall production efficiency of the rotating shaft mechanism. In some possible implementations of the first aspect, the first support segment has a first end face facing the second support segment, the second support segment has a second end face facing the first support segment, and the second end face is in contact with the first end face; one o