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Cordless Window Shade and Spring Drive System Thereof

一种弹簧驱动、窗帘的技术，应用在窗/门、门/窗保护装置、建筑等方向，能够解决增加卷簧盒重量、复杂等问题

Active Publication Date: 2016-05-11
TEH YOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the assembly of such coil spring boxes is usually very complicated, and the torsion force of the spring must be transmitted to the roller through multiple moving parts, which will disadvantageously increase the weight of the coil spring box in the window covering

Method used

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  • Cordless Window Shade and Spring Drive System Thereof
  • Cordless Window Shade and Spring Drive System Thereof
  • Cordless Window Shade and Spring Drive System Thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] figure 1 A top view showing a cordless curtain 100 according to an embodiment of the present invention, figure 2 depicts a top view of the window covering 100, and image 3 A schematic diagram showing the fully unfolded state of the curtain 100 is shown. "Cordless curtains" means curtains that do not require exposed operating cords. The window covering 100 includes a top rail 102 , a shade structure 104 , and a bottom 106 disposed at the bottom of the shade structure 104 . The top rail 102 can be of any type and shape. The top rail 102 can be fixed to the top of the window, and the shielding structure 104 and the bottom 106 can be suspended from the top rail 102 .

[0031] The shielding structure 104 may be any suitable structure. For example, the shielding structure 104 can be a honeycomb structure of fabric material (as shown), a venetian blind, or a plurality of vertically distributed and parallel plates.

[0032] The bottom portion 106 is disposed at the bott...

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PUM

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Abstract

The invention provides a cordless window shade and a spring drive system thereof. The spring drive system for a cordless window shade includes multiple rotary drums respectively connected with suspension cords, and one or more springs respectively connected with the rotary drums. The rotary drums are operatively connected with each other, so that they can synchronously rotate to wind and unwind the suspension cords. Moreover, each of the rotary drums is connected with an end of one spring. The spring torque can act to sustain a bottom part of the window shade at any desired height, and drive rotation of the rotary drums to wind the suspension cords when the bottom rail is raised upward.

Description

technical field [0001] The present invention relates to a cordless window covering and a spring drive system for the window covering. Background technique [0002] There are many types of curtains on the market, such as Venetian blinds, Roman blinds and honeycomb blinds. When the curtain is lowered, the window can be shaded to reduce the light entering the room and improve privacy. Generally, the curtain is provided with a control cord, wherein the control cord can drive the bottom rail of the curtain to rise or fall. In particular, the bottom rail can be raised by retracting the suspension with a drum, and the suspension can be extended from the drum to lower the bottom rail. [0003] However, since the problem that the control cord might strangle a child has been noticed, a cordless window shade has been developed. This cordless shade raises and lowers the bottom rail with the help of an electric motor or coil box. The spring box used in curtains usually consists of mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06B9/262E06B9/32E06B9/322
CPCE06B9/322E06B2009/3222E06B9/262E06B9/30E06B9/384E06B9/386E06B2009/2627
Inventor 黄清添游福来
Owner TEH YOR CO LTD