WO2020237461A1 - 平面涡卷弹簧及窗帘驱动装置 - Google Patents

平面涡卷弹簧及窗帘驱动装置 Download PDF

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Publication number
WO2020237461A1
WO2020237461A1 PCT/CN2019/088568 CN2019088568W WO2020237461A1 WO 2020237461 A1 WO2020237461 A1 WO 2020237461A1 CN 2019088568 W CN2019088568 W CN 2019088568W WO 2020237461 A1 WO2020237461 A1 WO 2020237461A1
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Prior art keywords
scroll spring
section
curtain
length
torque
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English (en)
French (fr)
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雷振邦
雷兴邦
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Individual
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Priority to PCT/CN2019/088568 priority Critical patent/WO2020237461A1/zh
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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47H—FURNISHINGS FOR WINDOWS OR DOORS
    • A47H5/00—Devices for drawing draperies, curtains, or the like
    • A47H5/14—Apparatus for lowering curtains or the like
    • 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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
    • F16F1/04—Wound springs
    • F16F1/10—Spiral springs with turns lying substantially in plane surfaces

Definitions

  • This application relates to the technical field of curtain accessories, and in particular to a flat scroll spring and a curtain driving device.
  • the drawstring connected to the curtain is wound on the reel, and the reel can be rotated by the driving device, so that the drawstring is wound on or from the reel Released to achieve the lifting of the curtain.
  • Some curtain driving devices use flat spiral springs to provide driving force.
  • the outer ends of the flat spiral springs are wound and fixed on an intermediate shaft parallel to the central axis of the flat spiral spring itself, and the intermediate shaft is connected to the reel drive.
  • the pull rope drives the reel to rotate in the positive direction, which in turn drives the intermediate shaft to rotate in the positive direction.
  • the reeds of the flat spiral spring are wound onto the intermediate shaft one by one; At the same time, only need to pull the curtain down slightly, the flat scroll spring will drive the intermediate shaft to rotate in the reverse direction under the action of its own elastic force. At the same time, the reed will gradually withdraw from the intermediate shaft and retract and wind, and the intermediate shaft Drive the winding wheel to rotate in the reverse direction to recover the rope, and then drive the curtain up.
  • the forming radius of curvature of the reed after bending and forming gradually increases from the inner ring to the outer ring, and the smaller the forming radius of curvature of the reed, the greater the torque that can be provided. Therefore, The torque provided by the traditional flat spiral spring is gradually reduced from the inner ring to the outer ring. Since the change trend of the torque of the traditional flat scroll spring is not compatible with the change trend of the weight that the curtain driving device needs to support, it cannot meet the curtain driving demand well.
  • the torque provided by the flat spiral spring is gradually reduced from the outer ring to the inner ring, which roughly corresponds to the changing trend of the weight supported by the curtain driving device. It can drive the curtain fabric up and down better.
  • the torque change rate of the working section of this flat scroll spring is relatively constant, while the change rate of the weight that the curtain driving device needs to support is not constant. Specifically, the higher the curtain rises, the curtain driving device needs to support The smaller the rate of change of the weight, therefore, the flat spiral spring with a constant rate of torque change will still affect the smoothness of the driving curtain.
  • the technical problem to be solved by the embodiments of the present application is to provide a flat spiral spring that can provide torque with different rates of change in different working sections.
  • a further technical problem to be solved by the embodiments of the present application is to provide a curtain driving device that can provide a stable supporting force during the lifting and lowering process of the curtain.
  • a planar scroll spring the torque provided by the working section of the reed of the planar scroll spring gradually decreases from the outer ring to the inner ring
  • the The working section is composed of a first length section and a second length section connected to the inner end of the first length section.
  • the torque decreases by a first decrement value per unit length.
  • the outer ring gradually decreases toward the inner ring.
  • the torque decreases according to each unit length.
  • the second decrease value gradually decreases from the outer ring to the inner ring, and the first decrease value is less than The second decrement value.
  • the starting end of the leaf spring of the outermost circle of the working section of the planar scroll spring is provided with a straight outer fixing section.
  • the end of the leaf spring of the innermost circle of the working section of the planar scroll spring is provided with an internal fixing part.
  • the embodiment of the present application also provides a curtain driving device, including a middle rotating shaft, a core shaft and a flat scroll spring, the outer end of the flat scroll spring is fixed to the middle rotating shaft and the inner end is fixed to the center rotating shaft.
  • the planar scroll spring is the planar scroll spring described in any one of the above.
  • the embodiments of the present application divide the working section of the planar scroll spring into a first length section and a second length section, and within the first length section, The provided torque decreases according to each unit length.
  • the first decreasing value gradually decreases from the outer ring to the inner ring.
  • the supplied torque decreases by the second decreasing value per unit length.
  • the first decrement value is smaller than the second decrement value, thereby making the torque distribution of the working section of the planar scroll spring and the support required when the curtain rises to different heights
  • the force is better matched, so as to always provide the stable and effective supporting force required by the curtain, and make the lifting and lowering of the curtain more stable.
  • Fig. 1 is a schematic diagram of a three-dimensional structure of an embodiment of a planar scroll spring of the present application.
  • Fig. 2 is a schematic diagram of the torque distribution along the length of an embodiment of the planar scroll spring of the present application.
  • Fig. 3 is a graph of actually measured torque-number of turns of an embodiment of the planar scroll spring of the present application.
  • Fig. 4 is a schematic structural diagram of an embodiment of the curtain driving device of the present application.
  • an embodiment of the present application provides a flat spiral spring 1.
  • the torque provided by the working section L AC of the reed 10 of the flat spiral spring 1 is from the outer ring 11 to the inner ring 12 is gradually reduced, the working segment from the first segment length L AB and adapter to an end section of a length L AB in the first section of the second length L BC configuration, in the first section length L AB,
  • the torque T decreases according to each unit length.
  • the first decreasing value gradually decreases from the outer ring 11 to the inner ring 12.
  • the torque T decreases according to each unit length.
  • the second decrement value gradually decreases from the outer ring 11 to the inner ring 12, and the first decrement value is smaller than the second decrement value.
  • the working section L AC of the reed 10 mentioned in the present application refers to the spring segment that is stressed when the curtain is moved from the fully contracted initial position to the maximum position of the curtain.
  • the ring 11 and the inner ring 12 are both relative concepts, that is, relatively speaking, the outer ring 11 is far from the axis, and the inner ring 12 is closer to the axis. Taking the reed located in the middle layer as an example, it is relatively The reed on the outer side is the inner ring 12, and the reed on the inner side is the outer ring 11.
  • FIG. 3 it is a broken line graph of the torque-turn relationship drawn by actually measuring the torque of the planar scroll spring 1 provided by the embodiment of the present application.
  • the abscissa in the figure represents the direction from the outermost ring to the inner ring. In the actual measurement, the torque is measured every 0.2 laps.
  • the ordinate represents the measured torque T value, and the unit is N ⁇ m. Since the flat spiral spring 1 is wound one by one, obviously, the length of each outer ring 11 will be greater than the length of each inner ring 12, that is, the number of turns corresponding to each unit length will be changed by The outer ring 11 increases to the inner ring 12 successively. Therefore, in combination with FIG. 3, it can also be found that the distribution trend of the torque T along the length of the reed 10 is basically the same as that shown in FIG. 2.
  • the provided torque T decreases according to each unit length.
  • the first decreasing value gradually decreases from the outer ring 11 to the inner ring 12.
  • the provided torque T decreases by the second The decrement value gradually decreases from the outer ring 11 to the inner ring 12, and the first decrement value is smaller than the second decrement value, so that the torque T distribution of the working section L AC of the planar scroll spring 1 and the curtain rise and fall to The supporting force required at different height positions is better matched, so that the curtain can always provide the stable and effective supporting force required by the curtain, and the lifting of the curtain is more stable.
  • a flat outer fixing section 3 is provided at the beginning of the reed 10 of the outermost ring of the working section L AC of the planar scroll spring.
  • the outer fixed section 3 can be used to be fixed to the intermediate rotating shaft 4 for receiving the wound flat spiral spring 1.
  • the outer fixing section 3 can be an I-shaped piece, a T-shaped piece, or a rectangular piece with a round hole, etc., which can fix the starting end of the reed 10 of the outermost ring of the planar scroll spring 1 to the corresponding The structure on the middle shaft 4.
  • the outer fixing section 3 provided in this embodiment is designed as a non-working section and is designed as a straight structure, which does not generate torque by itself, and can be more conveniently fixed to the corresponding intermediate shaft 4, and enhances the assembly of the planar scroll spring 1 during use effectiveness.
  • the end of the reed 10 of the innermost ring of the working section L AC of the planar scroll spring 1 is further provided with an internal fixing portion 6.
  • the inner fixing portion 6 can be used for fixing to the mandrel 5 for receiving the wound flat spiral spring 1.
  • the inner fixing portion 6 is composed of one or several rounds of circular reeds with a radius of curvature smaller than that of the innermost reed 10 of the working section L AC .
  • the flat scroll spring 1 can be conveniently wound and fixed on the corresponding mandrel 5, with a smaller matching gap, avoiding the shaking of the flat scroll spring 1 during operation, and improving the use of curtains. The stability.
  • the embodiment of the present application also provides a curtain driving device 7, including a middle rotating shaft 4, a mandrel 5, and a flat spiral spring 1.
  • the flat spiral spring 1 The outer end of is fixed to the intermediate shaft 4 and the inner end is fixed to the mandrel 5, and the planar spiral spring 1 is the planar spiral spring 1 as described above.
  • the aforementioned flat spiral spring 1 is used to provide driving power, and the intermediate rotating shaft 4 is connected to the reel of the draw rope, so that the reel can be driven. Since the working section L AC of the planar scroll spring 1 is divided into a first length section L AB and a second length section L BC , in the first length section L AB , the provided torque T is based on each unit The first decreasing value of the length decreases gradually from the outer ring 11 to the inner ring 12. In the second length section L BC , the provided torque T decreases according to each unit length.
  • the second decreasing value decreases from the outer ring 11 gradually decreases toward the inner ring 12, and the first decrement value is smaller than the second decrement value, so that the torque T distribution of the working section L AC of the planar scroll spring 1 is compared with the difference when the curtain rises to different height positions.
  • the required supporting force is better matched, so that the smooth and effective supporting force required by the curtain can always be given, and the lifting of the curtain is more stable.
  • the embodiments of the present application divide the working section of the planar scroll spring into a first length section and a second length section, and within the first length section, The provided torque decreases according to each unit length.
  • the first decreasing value gradually decreases from the outer ring to the inner ring.
  • the supplied torque decreases by the second decreasing value per unit length.
  • the first decrement value is less than the second decrement value, thereby making the torque distribution of the working section of the planar scroll spring and the support required when the curtain rises to different heights
  • the force is better matched, so as to always provide the stable and effective supporting force required by the curtain, and make the lifting and lowering of the curtain more stable.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)

Abstract

一种平面涡卷弹簧(1)，平面涡卷弹簧(1)的簧片(10)的工作段(L AC)所提供的扭矩由外圈(11)向内圈(12)逐渐减小，工作段(L AC)由第一长度区段(L AB)和衔接于第一长度区段(L AB)内端的第二长度区段(L BC)构成，在第一长度区段(L AB)内，扭矩按照每一单位长度减小第一递减值由外圈(11)向内圈(12)逐渐减小，在第二长度区段(L BC)内，扭矩按照每一单位长度减小第二递减值由外圈(11)向内圈(12)逐渐减小，第一递减值小于第二递减值。可使得平面涡卷弹簧(1)的工作段(L AC)的扭矩分布与帘布升降到不同高度位置时所需的支撑力更好地相匹配，从而始终能给帘布所需要的平稳、有效的支撑力，使帘布的升降更为平稳。

Description

平面涡卷弹簧及窗帘驱动装置 技术领域
本申请涉及窗帘配件技术领域，尤其涉及一种平面涡卷弹簧及窗帘驱动装置。
 背景技术
在无拉绳窗帘中，与帘布相连接的拉绳绕设于绕线轮上，绕线轮可在驱动装置驱动下旋转，而使拉绳被绕至绕线轮上或从绕线轮上释放出来，从而实现帘布的升降。
一些窗帘驱动装置采用平面涡卷弹簧来提供驱动力，平面涡卷弹簧的外端卷绕固定在与平面涡卷弹簧自身中心轴平行的中转轴上，所述中转轴与绕线轮传动相连，中转轴旋转时会带动绕线轮旋转，反之亦然。需放下帘布时，可手动下拉帘布，拉绳带动绕线轮正向旋转，进而带动中转轴正向旋转，平面涡卷弹簧的簧片则逐圈卷绕至中转轴上；而要升起帘布时，只需将帘布稍微向下拉动一下，平面涡卷弹簧即会在自身弹力作用下驱动中转轴反向旋转，同时簧片又将逐步逐圈从中转轴退出并回缩卷绕，而中转轴带动绕线轮反向旋转回收拉绳，进而带动帘布上升。
传统的平面涡卷弹簧在成型时，簧片弯曲成型后的成型曲率半径是由内圈向外圈逐渐增大，而簧片的成型曲率半径越小，所能提供的扭矩越大，因此，传统的平面涡卷弹簧所提供的扭矩是由内圈向外圈逐渐减小。由于这种传统平面涡卷弹簧的扭矩的变化趋势与窗帘驱动装置需要支撑的重量的变化趋势不适配，而并不能很好地满足窗帘驱动需求。
在另一种现有的无操作绳窗帘中，采用的平面涡卷弹簧所提供的扭矩是自外圈向内圈逐渐减小，这大致吻合窗帘驱动装置所需支撑的重量的变化趋势，可较好地驱动窗帘的帘布升降。但是，这种平面涡卷弹簧的工作段的扭矩变化率相对恒定，而窗帘驱动装置需要支撑的重量的变化率却并非恒定，具体来说，帘布上升到越高的位置，窗帘驱动装置需要支撑的重量的变化率越小，因此，扭矩变化率恒定的平面涡卷弹簧仍然会影响驱动帘布升降的平稳性。
 技术问题
本申请实施例要解决的技术问题是，提供一种平面涡卷弹簧，能在不同工作区段提供不同变化率的扭矩。
本申请实施例进一步要解决的技术问题是，提供一种窗帘驱动装置，能在帘布升降过程中提供平稳的支撑力。
 技术解决方案
为解决上述技术问题，本申请实施例提供如下技术方案：一种平面涡卷弹簧，所述平面涡卷弹簧的簧片的工作段所提供的扭矩由外圈向内圈逐渐减小，所述工作段由第一长度区段和衔接于第一长度区段内端的第二长度区段构成，在所述第一长度区段内，所述扭矩按照每一单位长度减小第一递减值由外圈向内圈逐渐减小，在所述第二长度区段内，所述扭矩按照每一单位长度减小第二递减值由外圈向内圈逐渐减小，所述第一递减值小于所述第二递减值。
进一步地，所述平面涡卷弹簧的工作段最外圈的簧片的起始端设有平直的外固定段。
进一步地，所述平面涡卷弹簧的工作段最内圈的簧片末端设有内固定部。
另一方面，本申请实施例还提供一种窗帘驱动装置，包括中转轴、芯轴和平面涡卷弹簧，所述平面涡卷弹簧的外端固定至所述中转轴上而内端固定至所述芯轴上，所述平面涡卷弹簧为如上任一项所述的平面涡卷弹簧。
 有益效果
通过采用上述技术方案，本申请实施例的有益效果如下：本申请实施例通过将平面涡卷弹簧的工作段分为第一长度区段和第二长度区段，在第一长度区段内，所提供的扭矩按照每一单位长度减小第一递减值由外圈向内圈逐渐减小，在所述第二长度区段内，所提供的扭矩按照每一单位长度减小第二递减值由外圈向内圈逐渐减小，而且所述第一递减值小于所述第二递减值，由此使得平面涡卷弹簧的工作段的扭矩分布与帘布升降到不同高度位置时所需的支撑力更好地相匹配，从而始终能给帘布所需要的平稳、有效的支撑力，使帘布的升降更为平稳。
 附图说明
图1是本申请平面涡卷弹簧一个实施例的立体结构示意图。
图2是本申请平面涡卷弹簧一个实施例的沿长度的扭矩分布示意图。
图3是本申请平面涡卷弹簧一个实施例的实际测量的扭矩-圈数关系曲线图。
图4是本申请窗帘驱动装置一个实施例的结构示意图。
本申请的实施方式
下面结合附图和具体实施例对本申请作进一步详细说明。应当理解，以下的示意性实施例及说明仅用来解释本申请，并不作为对本申请的限定，而且，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互结合。
如图1及图2所示，本申请一个实施例提供一种平面涡卷弹簧1，所述平面涡卷弹簧1的簧片10的工作段L AC所提供的扭矩由外圈11向内圈12逐渐减小，所述工作段由第一长度区段L AB和衔接于第一长度区段L AB内端的第二长度区段L BC构成，在所述第一长度区段L AB内，所述扭矩T按照每一单位长度减小第一递减值由外圈11向内圈12逐渐减小，在所述第二长度区段L BC内，所述扭矩T按照每一单位长度减小第二递减值由外圈11向内圈12逐渐减小，所述第一递减值小于所述第二递减值。
应当理解的是，本申请中所提及的簧片10的工作段L AC是指帘布从完全收缩的初始位置到帘布移动到最大位置时受力的簧片段，本申请中所提及的外圈11和内圈12均是相对的概念，即相对而言，离轴心远的为外圈11，离轴心近的为内圈12，以位于中间层的簧片为例，其相对于位于其外侧的簧片即为内圈12，而相对于位于其内侧的簧片即为外圈11。
如图3所示，是对本申请实施例提供的平面涡卷弹簧1的扭矩进行实际测量得到的数据而绘制的扭矩-圈数关系折线图，图中的横坐标代表由最外圈向内圈的圈数，在实际测量时以每隔0.2圈测量一次扭矩，纵坐标代表测得的扭矩T值，单位为N·m。由于平面涡卷弹簧1是依次逐圈卷绕的，明显地，每一圈外圈11的长度会大于每一圈内圈12长度，也就是说，每一单位长度对应的圈数将会由外圈11向内圈12依次增多，由此，结合图3所示，亦可发现沿簧片10长度的扭矩T分布趋势与图2所示的扭矩T分布趋势基本相同。
在本实施例中，通过将平面涡卷弹簧1的工作段L AC分为第一长度区段L AB和第二长度区段L BC，在第一长度区段L AB内，所提供的扭矩T按照每一单位长度减小第一递减值由外圈11向内圈12逐渐减小，在所述第二长度区段L BC内，所提供的扭矩T按照每一单位长度减小第二递减值由外圈11向内圈12逐渐减小，而且所述第一递减值小于所述第二递减值，由此使得平面涡卷弹簧1的工作段L AC的扭矩T分布与帘布升降到不同高度位置时所需的支撑力更好地相匹配，从而始终能给帘布所需要的平稳、有效的支撑力，使帘布的升降更为平稳。
结合图1所示，在本申请的一个可选实施例中，所述平面涡卷弹簧的工作段L AC最外圈的簧片10的起始端设有平直的外固定段3。在具体应用时，可参考图4所示，所述外固定段3可用于固定至用于接收卷绕平面涡卷弹簧1的中转轴4上。所述外固定段3可以是工字形片体、T字形片体或带圆孔的矩形片体等各种可以将平面涡卷弹簧1的最外圈的簧片10的起始端固定至相应的中转轴4上的结构。本实施例所提供的外固定段3作为非工作段而被设计为平直结构，本身不会产生扭矩，可更方便固定至相应的中转轴4上，提升平面涡卷弹簧1使用时的组装效率。
结合图1所示，在本申请的另一个可选实施例中，所述平面涡卷弹簧1的工作段L AC最内圈的簧片10末端还设有内固定部6。在具体应用时，可参考图4所示，所述内固定部6可用于固定至用于接收卷绕平面涡卷弹簧1的芯轴5上。所述内固定部6由一圈或者几圈曲率半径比工作段L AC最内圈簧片10更小的圆形簧片构成。本实施例通过设计内固定部6，可方便地将平面涡卷弹簧1卷绕固定于相应的芯轴5上，配合间隙更小，避免平面涡卷弹簧1在工作时晃动，提高窗帘使用时的稳定性。
在本申请另一个实施例中，如图4所示，本申请实施例还提供一种窗帘驱动装置7，包括中转轴4、芯轴5和平面涡卷弹簧1，所述平面涡卷弹簧1的外端固定至所述中转轴4上而内端固定至所述芯轴5上，所述平面涡卷弹簧1为如前所述的平面涡卷弹簧1。
本申请实施例通过采用前述的平面涡卷弹簧1来提供驱动动力，而由中转轴4连接至拉绳的绕线轮，而可以对绕线轮进行驱动。由于采用的平面涡卷弹簧1的工作段L AC分为第一长度区段L AB和第二长度区段L BC，在第一长度区段L AB内，所提供的扭矩T按照每一单位长度减小第一递减值由外圈11向内圈12逐渐减小，在所述第二长度区段L BC内，所提供的扭矩T按照每一单位长度减小第二递减值由外圈11向内圈12逐渐减小，而且所述第一递减值小于所述第二递减值，由此使得平面涡卷弹簧1的工作段L AC的扭矩T分布与帘布升降到不同高度位置时所需的支撑力更好地相匹配，从而始终能给帘布所需要的平稳、有效的支撑力，使帘布的升降更为平稳。
以上所述的具体实施例，对本申请的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请的具体实施例而已，并不用于限定本申请的保护范围，凡在本申请的精神和原则之内，所做的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。
 工业实用性
通过采用上述技术方案，本申请实施例的有益效果如下：本申请实施例通过将平面涡卷弹簧的工作段分为第一长度区段和第二长度区段，在第一长度区段内，所提供的扭矩按照每一单位长度减小第一递减值由外圈向内圈逐渐减小，在所述第二长度区段内，所提供的扭矩按照每一单位长度减小第二递减值由外圈向内圈逐渐减小，而且所述第一递减值小于所述第二递减值，由此使得平面涡卷弹簧的工作段的扭矩分布与帘布升降到不同高度位置时所需的支撑力更好地相匹配，从而始终能给帘布所需要的平稳、有效的支撑力，使帘布的升降更为平稳。

Claims (4)

  1. 一种平面涡卷弹簧，所述平面涡卷弹簧的簧片的工作段所提供的扭矩由外圈向内圈逐渐减小，其特征在于：所述工作段由第一长度区段和衔接于第一长度区段内端的第二长度区段构成，在所述第一长度区段内，所述扭矩按照每一单位长度减小第一递减值由外圈向内圈逐渐减小，在所述第二长度区段内，所述扭矩按照每一单位长度减小第二递减值由外圈向内圈逐渐减小，所述第一递减值小于所述第二递减值。
  2. 根据权利要求1所述的平面涡卷弹簧，其特征在于：所述平面涡卷弹簧的工作段最外圈的簧片的起始端设有平直的外固定段。
  3. 根据权利要求1所述的平面涡卷弹簧，其特征在于：所述平面涡卷弹簧的工作段最内圈的簧片末端设有内固定部。
  4. 一种窗帘驱动装置，包括中转轴、芯轴和平面涡卷弹簧，所述平面涡卷弹簧的外端固定至所述中转轴上而内端固定至所述芯轴上，其特征在于：所述平面涡卷弹簧为如权利要求1~3任一项所述的平面涡卷弹簧。
PCT/CN2019/088568 2019-05-27 2019-05-27 平面涡卷弹簧及窗帘驱动装置 Ceased WO2020237461A1 (zh)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110024064A1 (en) * 2009-08-01 2011-02-03 Philip Ng Spring assist for multi band roller shade
CN104302861A (zh) * 2012-02-27 2015-01-21 亨特道格拉斯工业公司 具有抗衡装置的卷帘
CN205805379U (zh) * 2016-04-12 2016-12-14 黄贤德 弹簧马达
US20170275943A1 (en) * 2016-03-22 2017-09-28 Anli Spring Co., Ltd. Unequal-torque coil spring and a spring motor thereof
CN206889541U (zh) * 2017-05-27 2018-01-16 雷振邦 窗帘驱动装置的平面涡卷弹簧
CN208152908U (zh) * 2018-04-24 2018-11-27 雷振邦 电动窗帘

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110024064A1 (en) * 2009-08-01 2011-02-03 Philip Ng Spring assist for multi band roller shade
CN104302861A (zh) * 2012-02-27 2015-01-21 亨特道格拉斯工业公司 具有抗衡装置的卷帘
US20170275943A1 (en) * 2016-03-22 2017-09-28 Anli Spring Co., Ltd. Unequal-torque coil spring and a spring motor thereof
CN205805379U (zh) * 2016-04-12 2016-12-14 黄贤德 弹簧马达
CN206889541U (zh) * 2017-05-27 2018-01-16 雷振邦 窗帘驱动装置的平面涡卷弹簧
CN208152908U (zh) * 2018-04-24 2018-11-27 雷振邦 电动窗帘

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