Title:
A SPEED REDUCER FOR ROLLING BLINDS
Document Type and Number:
WIPO Patent Application WO/2005/121489
Kind Code:
A1
Abstract:
A speed reducer for rolling blinds comprises a sealed housing (2), a rotator (4) with vane blades (3) disposed in the sealed housing (2), a liquid substance filled in the sealed housing (2) and a shaft (5) rotatalbely extended through the sealed housing (2) coupling with the rotator (4), wherein the sealed housing (2) is composed of a cylinder (2a) and a cylinder cap (2c) sealing the opening (2b) thereof and an axle hole (4a) is disposed in the rotator (4) and extending thereinto, whereby the shaft (5) perforating through the cylinder cap (2c) with a perforation (2d) inserts into the axle hole (4a) of the rotator (4). The speed reducer for rolling blinds reduces the occurrence of a noise and causes a decreasing speed, which results in alleviating impact on a rolling blind when moving to the wind up position.
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Inventors:
ZHU XIANGRONG (CN)
Application Number:
PCT/CN2005/000811
Publication Date:
December 22, 2005
Filing Date:
June 08, 2005
Export Citation:
Assignee:
ZHU XIANGRONG (CN)
International Classes:
A47H1/13; E06B9/80; F16D57/00; (IPC1-7): E06B9/80; A47H1/13; F16D57/00
Domestic Patent References:
| WO2003058020A1 | 2003-07-17 |
Foreign References:
| US6591890B1 | 2003-07-15 | |||
| DE20116309U1 | 2002-01-17 | |||
| JPH0967987A | 1997-03-11 | |||
| CN2616651Y | 2004-05-19 |
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (Vantone New World Plaza 2 Fuchengmenwai Street, Beijing 7, CN)
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