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Patent Searching and Data


Title:
RETRACTABLE/EXTENSIBLE SHADE
Document Type and Number:
WIPO Patent Application WO/2018/018727
Kind Code:
A1
Abstract:
A retractable/extensible shade, comprising a bracket (300) and a retraction/extension device. The retraction/extension device comprises a synchronous pulley set (1) and winding assemblies (3). The synchronous pulley set (1) comprises at least one coil spring (12) and at least two synchronous pulleys (11) rotatably disposed on a mounting base (400), both ends of each coil spring (12) being fixedly connected to the two synchronous pulleys (11) respectively, so as to be wound on the two synchronous pulleys (11) in opposite directions. Each winding assembly (3) comprises a fixed base (31), a winding shaft (32) rotatably disposed on the fixed base (31), and a transmission shaft (33). The transmission shaft (33) is connected to at least one of the synchronous pulleys (11) directly or by means of a transmission assembly (2). The winding shaft (32) passes through the transmission shaft (33) and is coaxial with the transmission shaft (33. The extension directions of the axes of the transmission shafts (33) of the winding assemblies (2) are the same. The mounting base (400) and the fixed base (31) are separately and fixedly connected to the bracket (300). A limiting groove (301) is provided on the bracket (300). The extension direction of the central line of the limiting groove (301) is the same as that of the central line of the transmission shaft (33). Limiting protrusions (401, 312) matching the limiting groove (301) are provided on the mounting base (400) and the fixed base (31) respectively. The limiting protrusions (401, 312) are engaged in the limiting groove (301). By means of the mutual matching between the limiting protrusions and the limiting groove on the bracket, it is ensured that the synchronous pulley set and winding assemblies can be arranged along extension directions of the axes of the transmission shafts after being mounted, thereby avoiding staggering and facilitating mounting.

Inventors:
HUANG, Jiehren (2 Gugang Road, Taicang, Jiangsu 0, 215400, CN)
Application Number:
CN2016/099510
Publication Date:
February 01, 2018
Filing Date:
September 21, 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; E06B9/38
Foreign References:
CN205876133U2017-01-11
CN106089002A2016-11-09
CN205876134U2017-01-11
CN106050108A2016-10-26
CN205805377U2016-12-14
CN205162690U2016-04-20
CN104847244A2015-08-19
CN202031462U2011-11-09
CN200996260Y2007-12-26
JPH0642544Y21994-11-09
Attorney, Agent or Firm:
SUZHOU CREATOR PATENT & TRADEMARK AGENCY LTD. (No.93 Ganjiang West Road, Suzhou, Jiangsu 2, 215002, CN)
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