Title:
CURTAIN DRIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/249292
Kind Code:
A1
Abstract:
A curtain driving device, which is used for driving a winding drum (1) provided with a curtain cloth, wherein the driving device comprises a first driving mechanism (3) installed inside one end of the winding drum (1), and at the same time, further comprises a second driving mechanism (5) that is arranged inside the other end of the winding drum (1) and that cooperates with the first driving mechanism (3) to then synchronously drive the winding drum (1) to rotate about a central axis; at least one of the first driving mechanism (3) and the second driving mechanism (5) is a planar scroll spring mechanism (7); the planar scroll spring mechanism (7) comprises a shaft (72) one end of which is fixed on a fixing base (10) and the other end of which is inserted into the winding drum (1) and fixed with a fixed gear (70), a housing (74) fixed relative to the winding drum (1) in the circumferential direction, a planar scroll spring (76) assembled within the housing (74), and a winding shaft (761) and an output shaft (763) fixed in parallel in the housing (74); two ends of the planar scroll spring (76) are wound on the winding shaft (761) and the output shaft (763), respectively; a coaxial driving gear (7630) is provided on the output shaft (763); and a transmission gear group (78) is further provided between the driving gear (7630) and the fixed gear (70). The driving device may smoothly drive the curtain cloth up and down.
Inventors:
LEI ZHENBANG (CN)
LEI XINGBANG (CN)
LEI XINGBANG (CN)
Application Number:
PCT/CN2021/098253
Publication Date:
December 16, 2021
Filing Date:
June 04, 2021
Export Citation:
Assignee:
LEAFY WINDOWARE CO LTD (CN)
International Classes:
E06B9/56; E06B9/68; E06B9/72
Foreign References:
| CN213175478U | 2021-05-11 | |||
| CN210564310U | 2020-05-19 | |||
| CA2516804A1 | 2006-04-27 | |||
| CN210396595U | 2020-04-24 | |||
| US20190257147A1 | 2019-08-22 |
Attorney, Agent or Firm:
SHENZHEN EASYPRO INTELLECTUAL PROPERTY OFFICE (GENERAL PARTNERSHIP) (CN)
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