WO2023221788A1 - 双向开合分段扭力摩擦转轴机构 - Google Patents

双向开合分段扭力摩擦转轴机构 Download PDF

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Publication number
WO2023221788A1
WO2023221788A1 PCT/CN2023/092481 CN2023092481W WO2023221788A1 WO 2023221788 A1 WO2023221788 A1 WO 2023221788A1 CN 2023092481 W CN2023092481 W CN 2023092481W WO 2023221788 A1 WO2023221788 A1 WO 2023221788A1
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Prior art keywords
rotating shaft
closing
opening
sides
flat
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PCT/CN2023/092481
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English (en)
French (fr)
Inventor
魏梦凯
张恩燮
张建南
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杭州安费诺飞凤通信部品有限公司
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Publication of WO2023221788A1 publication Critical patent/WO2023221788A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections

Definitions

  • the present invention relates to a hinge, and in particular, to a hinge applied to a portable mobile terminal or its holder.
  • the friction shaft mechanism that realizes this kind of multi-stage torque output has not yet been able to realize the bidirectional function. That is, no matter when installing or plugging in and out, if there is a need to install it reversely or it is installed reversely by mistake, the friction shaft hinge needs to remain in its original state. Some have the function of multi-section hinges.
  • the technical problem to be solved by the present invention is to provide a two-way opening and closing segmented torque friction rotating shaft mechanism, so that multiple different friction torque outputs can be achieved regardless of whether it is installed correctly or reversely.
  • the present invention adopts the following technical solutions:
  • the two-way opening and closing segmented torsion friction rotating shaft mechanism includes a rotating shaft and a shaft sleeve.
  • the shaft sleeve is elastic with an axial opening slit, and uses the elasticity to surround the rotating shaft; characterized in that, the shaft sleeve A connecting handle is provided, the connecting handle and the opening slit are located on both radial sides of the shaft sleeve, and the shaft sleeve is provided with convex structures on both sides of the radial line corresponding to the connecting handle and the opening slit.
  • the structure is symmetrical relative to the position of the radial line;
  • the rotating shaft includes an arc surface and flat positions are provided on both sides of the arc surface, and the flat positions are symmetrically arranged relative to the cross-sectional centerline of the rotating shaft,
  • the center line of the cross section passes through the center of the rotation shaft; the central angle corresponding to the flat position is greater than the central angle corresponding to the convex structure.
  • the protruding structures with symmetrical positions on both sides have the same shape, and the flat structures with symmetrical positions on both sides have the same shape.
  • the flat position is a plane and is close to the center line of the cross section, and the central angle between the midpoints of the two flat positions is 110° to 150°.
  • the rotating shaft is an arc surface with the same diameter between flat positions.
  • the shape of the protruding structure is an isosceles trapezoidal protrusion.
  • the protruding structure is in a clearance fit with the surface of the flat position during a certain rotation angle in the flat position; in a free state, the protruding structure is in a free state.
  • the distance between the starting structure and the center of the circle is smaller than the radius of the arc surface.
  • the rotating shaft is provided with a connecting portion for connecting with the rotating body, and the connecting handle is fixedly connected or plugged into the base body.
  • the present invention has a simple structure, can realize bidirectional opening and closing segmented torque output, can meet the functional needs of formal installation or reverse installation, and can enable bidirectional opening and closing to have basically consistent segmented torque output.
  • Figure 1 is a front view of an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view along line A-A of FIG. 1 .
  • Figure 3 is an exploded view of the embodiment of the present invention.
  • Figure 4 is a schematic diagram of the clockwise opening process, the counterclockwise opening process and the enlargement of part B according to the present invention.
  • Figure 5 is a cross-sectional view of the shaft sleeve of the present invention.
  • Figure 6 is a cross-sectional view of the rotating shaft of the present invention.
  • Figure 7 is a schematic diagram of forward and reverse segmented torque output according to the embodiment of the present invention.
  • the bidirectional opening and closing segmented torsion friction rotating shaft mechanism includes a rotating shaft 1 and
  • the shaft sleeve 2 has an axial opening slit 21 and is elastic, and uses the elasticity to sandwich the rotating shaft 1 .
  • the shaft sleeve 2 is provided with a connecting handle 22.
  • the connecting handle 22 and the opening slit 21 are located on both radial sides of the shaft sleeve 2, and the shaft sleeve 2 is in the radial direction corresponding to the connecting handle 22 and the opening slit 21.
  • Protruding structures 23 are respectively provided on both sides of the line F1.
  • the protruding structures 23 are symmetrical in position relative to the radial line F1; the rotating shaft 1 includes an arc surface 11 and flat positions are provided on both sides of the arc surface 11. 12.
  • the position of the flat position 12 is symmetrically arranged with respect to the cross-sectional center line F2 of the rotating shaft, and the cross-sectional center line F2 passes through the center of the circle of the rotating shaft 1 .
  • the central angle corresponding to the flat position 12 is greater than the central angle corresponding to the protruding structure 23 .
  • the symmetrical protruding structures 23 on both sides have the same shape, and the symmetrical flat portions 12 on both sides have the same shape.
  • the flat position 12 is a plane and is close to the cross-sectional center line F2, and the central angle between the midpoints of the two flat positions is 110° to 150°. This allows the torque in the initial opening stage to be relatively small, or even zero, and the torque in the closing stage to gradually decrease to relatively small.
  • the rotating shaft 1 has the same diameter between the flat positions 12.
  • the shape of the protruding structure 23 is an isosceles trapezoidal protrusion, and the protruding structure 23 is in clearance fit with the surface of the flat position 12 during a certain rotation angle in the flat position 12 , in the free state, the distance between the convex structure 23 and the center of the circle is smaller than the radius of the arc surface 11 , so that when the convex structure 23 cooperates with the arc surface 11 , the torsion force reaches the maximum value.
  • the rotating shaft 1 is provided with a connecting portion 13 for connecting to a rotating body (such as a screen or a bracket, etc.), and the connecting handle 22 is fixedly connected or plugged into a base body (such as a base or a keyboard).
  • a rotating body such as a screen or a bracket, etc.
  • the connecting handle 22 is fixedly connected or plugged into a base body (such as a base or a keyboard).
  • the convex position of the sleeve 2 and the flat position of the rotating shaft 1 enter an interference state.
  • the amount of interference gradually increases and reaches the maximum value, and the torque also increases from zero to the maximum;
  • the sleeve 2 and the rotating shaft 1 adopt a combination of convex and flat special-shaped profiles. Different combination forms and positions can provide the amount of interference required at different angles; different amounts of interference provide the friction and friction that change during the rotation process. Torque; the symmetrical arrangement of the contour can provide the same torque during clockwise and counterclockwise rotation.
  • the shaft sleeve has two convex structures, which are symmetrically arranged with each other and each convex structure is symmetrical to itself; the rotating shaft also has two flat positions. , the two are symmetrically arranged with each other, and each flat structure is a chord of the circumference, which is symmetrical to itself; the convex structure and the flat structure cooperate with each other to form two sets of interference fits.
  • the two sets of structures are The same function is realized during the movement, and the functions are superimposed on each other, realizing the function of the product rotating clockwise and counterclockwise at the same angle and having the same force value effect.
  • This solution can provide multi-stage torque and consistent opening and closing torque in both directions.
  • the supporting products can be used in both directions, eliminating the difference between the front and back of the product and ensuring foolproof use.
  • the solution of this embodiment can provide practical functional experiences such as easy opening (opening with low torque or no torque), constant angle force value (30-110 degrees), and reduced torque for excessive opening angles (>110 degrees) to avoid overload damage. ;
  • contours are arranged asymmetrically or on one side, asymmetrical torque can be provided; through the position and combination of contours, a variety of torque solutions can be provided.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Abstract

一种双向开合分段扭力摩擦转轴机构，包括转轴（1）和轴套（2），轴套（2）开设有轴向开口缝而有弹性，并利用弹性包夹转轴；轴套（2）设置连接柄（22），连接柄（22）和开口缝（21）位于轴套（2）的径向两侧，且轴套（2）在连接柄（22）和开口缝（21）所对应的径向线两侧分别设置凸起结构（23），凸起结构（23）相对于径向线的位置对称；转轴（1）包括圆弧表面（11）且在圆弧表面（11）的两侧设置扁位（12），扁位（12）的位置相对于转轴（1）的横截面中线对称设置，横截面中线经过转轴（1）的圆心；扁位（12）所对应的圆心角大于凸起结构（23）所对应的圆心角。该机构结构简单，能够实现双向开合分段扭力输出，能满足正装或被反装的功能需要，并能使得双向开合具有一致的分段扭力输出。

Description

双向开合分段扭力摩擦转轴机构 技术领域
本发明涉及铰链，尤其涉及一种应用于便携式移动终端或其支架的铰链。
背景技术
对于应用于便携式移动终端或其支架的摩擦转轴铰链，有需要实现多段不同扭力的使用需求。比如打开一段角度内，扭力较小且扭力变化不大或不变，在经过第一段角度后，随着角度不断增大，扭力也逐渐增大；在经过这一段后，继续增大角度时，扭力又不再变化或变化不大；在经过这一段后，继续增大角度时，扭力又逐渐减小。
目前实现这种多段扭力输出的摩擦转轴机构还未见能够实现双向功能，也即，不管在安装或插拔使用时，一旦有需求装反或被误装反时，需要摩擦转轴铰链仍然保持原有的多段铰链的功能。
发明内容
本发明所要解决的技术问题是提供一种双向开合分段扭力摩擦转轴机构，以不论正装或被反装，都能实现多段不同的摩擦扭力输出。为此，本发明采用以下技术方案：
双向开合分段扭力摩擦转轴机构，包括转轴和轴套，所述轴套开设有轴向开口缝而有弹性，并利用所述弹性而包夹所述转轴；其特征在于，所述轴套设置连接柄，所述连接柄和所述开口缝位于轴套的径向两侧，且所述轴套在连接柄和开口缝所对应的径向线两侧分别设置凸起结构，所述凸起结构相对于所述径向线的位置对称；所述转轴包括圆弧表面且在圆弧面的两侧设置扁位，所述扁位的位置相对于所述转轴的横截面中线对称设置，所述横截面中线经过转轴的圆心；所述扁位所对应的圆心角大于所述凸起结构所对应的圆心角。
在采用上述技术方案的基础上，本发明还可采用以下进一步的技术方案，或 对这些进一步的技术方案组合使用：
两侧的位置对称的所述凸起结构的形状相同，两侧的位置对称的所述扁位的形状相同。
所述扁位为平面，且靠近所述横截面中线，两个扁位中点之间的圆心角为110°至150°。
所述扁位在横截面中线的两侧各有一个，所述凸起结构在所述径向线的两侧各一个。
所述转轴在扁位之间为直径相同的圆弧面。
所述凸起结构的形状为等腰梯形凸起，所述凸起结构在所述扁位中的一段转动角度中，为与所述扁位的表面间隙配合；在自由状态下，所述凸起结构距圆心的距离小于所述圆弧面的半径。
所述转轴设置连接部位而与用于和转动体连接，所述连接柄与基体固定连接或插接。
由于采用本发明的技术方案，本发明结构简单，能够实现双向开合分段扭力输出，能满足正装或被反装的功能需要，并能使得双向开合具有基本一致的分段扭力输出。
附图说明
图1为本发明实施例的主视图。
图2为图1的A-A剖视图。
图3为本发明实施例的爆炸图。
图4为本发明顺时针打开过程、逆时针打开过程及B部位放大的示意图。
图5为本发明的轴套剖视图。
图6为本发明转轴的剖视图。
图7为本发明实施例的正反转分段扭力输出示意图。
具体实施方式
参照附图。本发明所提供的双向开合分段扭力摩擦转轴机构，包括转轴1和 轴套2，所述轴套2开设有轴向开口缝21而有弹性，并利用所述弹性而包夹所述转轴1。所述轴套2设置连接柄22，所述连接柄22和所述开口缝21位于轴套2的径向两侧，且所述轴套2在连接柄22和开口缝21所对应的径向线F1两侧分别设置凸起结构23，所述凸起结构23相对于所述径向线F1的位置对称；所述转轴1包括圆弧表面11且在圆弧面11的两侧设置扁位12，所述扁位12的位置相对于所述转轴的横截面中线F2对称设置，所述横截面中线F2经过转轴1的圆心。所述扁位12所对应的圆心角大于所述凸起结构23所对应的圆心角。
两侧的位置对称的所述凸起结构23的形状相同，两侧的位置对称的所述扁位12的形状相同。
所述扁位12为平面，且靠近所述横截面中线F2，两个扁位中点之间的圆心角为110°至150°。使得打开起步阶段的扭力可以比较小，甚至为零，在闭合阶段的扭力也能逐渐下降为比较小。
所述扁位12在横截面中线F2的两侧各有一个，所述凸起结构23在所述径向线F1的两侧各一个，所述转轴1在扁位12之间为直径相同的圆弧面11，如图7所示，形成正反转双向开合均四段扭力输出。
本实施例中，所述凸起结构23的形状为等腰梯形凸起，所述凸起结构23在所述扁位12中的一段转动角度中，为与所述扁位12的表面间隙配合，在自由状态下，所述凸起结构23距圆心的距离小于所述圆弧面11的半径，使得当转至凸起结构23与圆弧面11配合时，扭力达到最大值。
所述转轴1设置连接部位13而与用于和转动体(比如屏幕或支架等)连接，所述连接柄22与基体(比如基座或键盘)固定连接或插接。
本实施例的顺时针和逆时针转动的扭力分段输出均为：
1.0～10度，轴套2与转轴1为间隙配合，不提供扭力；
2.10～30度，轴套2凸起与转轴1扁位进入过盈状态，过盈量逐渐增加，达到最大值，扭力也从零增大到最大；
3.30～110度，轴套2凸起与转轴1圆弧过盈，且过盈量不变，提供恒定扭 力；
4.110～130度，轴套2凸起与转轴1扁位进入过盈状态，过盈量逐渐减小，扭矩减小。
本发明中，轴套2与转轴1采用凸起与扁位组合异型轮廓，不同组合形式及位置可以提供不同角度所需的过盈量；不同过盈量提供了转动过程中变化的摩擦力及扭矩；轮廓对称排布可提供顺时针与逆时针转动过程的相同扭矩，轴套有两个凸起结构，两者相互对称排布且每个凸起结构自身对称；转轴同样有两个扁位，两者相互对称排布，且每个扁位架构为圆周的弦，自身对称；凸起结构和扁位相互配合，可形成两组过盈配合，由于特殊的对称设计，使得两组结构在运动过程中实现相同的功能，且功能为相互叠加效果，实现了产品顺时针和逆时针旋转相同角度有相同力值效果的功能。此解决方案可提供多段扭力且双向开合力矩一致，配套产品可双向使用，消除产品正反差异，做到使用防呆。本实施例的方案可提供：容易打开(开启低扭矩或无扭矩)、使用角度力值恒定(30～110度)、打开角度过大扭矩降低(>110度)避免过载损坏等实用性功能体验；
另外，如轮廓非对称排布或者单侧排布，则可提供不对称的扭矩；通过轮廓排布位置及组合方式，还可提供多种扭矩方案。
以上所述仅为本发明的具体实施例，但本发明的结构特征并不局限于此，任何本领域的技术人员在本发明的领域内，所作的变化或修饰皆涵盖在本发明的保护范围之中。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含。术语“安装”、“设置”、“设有”、“连接”、“相连”、“套接”应做广义理解。例如，可以是固定连接，可拆卸连接，或整体式构造；可以是机械连接，或电连接；可以是直接相连，或者是通过中间媒介间接相连，又或者是两个装置、元件或组成部分之间内部的连通。对于本领域普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
在本发明的描述中，需要理解的是，术语“一端”、“另一端”、“外侧”、“内侧”、“水平”、“端部”、“长度”、“外端”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。用语“第一”、“第二”也仅为说明时的简洁而采用，并不是指示或暗示相对重要性。

Claims (7)

  1. 双向开合分段扭力摩擦转轴机构，包括转轴和轴套，所述轴套开设有轴向开口缝而有弹性，并利用所述弹性而包夹所述转轴；其特征在于，所述轴套设置连接柄，所述连接柄和所述开口缝位于轴套的径向两侧，且所述轴套在连接柄和开口缝所对应的径向线两侧分别设置凸起结构，所述凸起结构相对于所述径向线的位置对称；所述转轴包括圆弧表面且在圆弧面的两侧设置扁位，所述扁位的位置相对于所述转轴的横截面中线对称设置，所述横截面中线经过转轴的圆心；所述扁位所对应的圆心角大于所述凸起结构所对应的圆心角。
  2. 如权利要求1所述的双向开合分段扭力摩擦转轴机构，其特征在于，两侧的位置对称的所述凸起结构的形状相同，两侧的位置对称的所述扁位的形状相同。
  3. 如权利要求1所述的双向开合分段扭力摩擦转轴机构，其特征在于，所述扁位为平面，且靠近所述横截面中线，两个扁位中点之间的圆心角为110°至150°。
  4. 如权利要求1所述的双向开合分段扭力摩擦转轴机构，其特征在于，所述扁位在横截面中线的两侧各有一个，所述凸起结构在所述径向线的两侧各一个。
  5. 如权利要求1所述的双向开合分段扭力摩擦转轴机构，其特征在于，所述转轴在扁位之间为直径相同的圆弧面。
  6. 如权利要求1所述的双向开合分段扭力摩擦转轴机构，其特征在于，所述凸起结构的形状为等腰梯形凸起，所述凸起结构在所述扁位中的一段转动角度中，为与所述扁位的表面间隙配合；在自由状态下，所述凸起结构距圆心的距离小于所述圆弧面的半径。
  7. 如权利要求1、2、3、4、5或6所述的双向开合分段扭力摩擦转轴机构，其特征在于，所述转轴设置连接部位而与用于和转动体连接，所述连接柄与基体固定连接或插接。
PCT/CN2023/092481 2022-05-16 2023-05-06 双向开合分段扭力摩擦转轴机构 WO2023221788A1 (zh)

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CN202221171289.XU CN217842350U (zh) 2022-05-16 2022-05-16 双向开合分段扭力摩擦转轴机构
CN202221171289.X 2022-05-16

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