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Patent Searching and Data


Title:
WINDING ASSEMBLY AND RETRACTABLE/EXTENSIBLE SHADE
Document Type and Number:
WIPO Patent Application WO/2018/018719
Kind Code:
A1
Abstract:
A retractable/extensible shade, comprising a shade body (100), a cord (200) for driving the retraction/extension of the shade body, and a retraction/extension device for retracting/extending the cord. The retraction/extension device comprises winding assemblies (3). The winding assembly comprises a fixed base (31) and a winding shaft (32) rotatably disposed on the fixed base. A cord passing hole (310) and a plurality of cord guiding holes (311) for the cord to sequentially pass through are provided on the fixed base, the cord guiding holes being provided at different positions on the fixed base, the cord passing hole being located between the outer wall of the winding shaft and the plurality of cord guiding holes. The cord passing hole is provided at a position, which corresponds to one end portion of the winding shaft, on the fixed base. The outer wall of the winding shaft obliquely extends along the axis of the winding shaft in a gradual expansion manner. The cord passing hole is provided at a position, which corresponds to a larger-diameter end portion of the winding shaft, on the fixed base. When the cord is located in the cord guiding holes at different positions, tension forces of the cord are different. Therefore, the cord can be made to pass through corresponding cord guiding holes, so as to adjust the tension force of the cord according to a change in the weight of the shade body.

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Inventors:
HUANG, Jiehren (2 Gugang Road, Taicang, Jiangsu 0, 215400, CN)
Application Number:
CN2016/098778
Publication Date:
February 01, 2018
Filing Date:
September 13, 2016
Export Citation:
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Assignee:
SUZHOU HONGREN WINDOW DECORATIONS CO., LTD (2 Gugang Road, Taicang, Jiangsu 0, 215400, CN)
International Classes:
E06B9/262
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT & TRADEMARK AGENCY LTD. (No.93 Ganjiang West Road, Suzhou, Jiangsu 2, 215002, CN)
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