Title:
ROLLER BLINDS DRIVING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/044960
Kind Code:
A1
Abstract:
A roller blinds driving device, comprising: a main shaft (3) arranged coaxially with a rolling cylinder (2), wherein the main shaft (3) comprises a fixed end (30) and a free end (32), and the free end (32) is further fixedly provided with a main gear (34); a spring driver (4), wherein the spring driver (4) comprises a spring frame (40) fixed relative to the rolling cylinder (2) in the circumferential direction, a transmission shaft (42) pivoted on the spring frame (40), and planar scroll springs (44) assembled on the spring frame (40) and having outer ends fixed onto the transmission shaft (42), and output end of the transmission shaft (42) is coaxially and fixedly provided with a planetary gear (46) engaged with the main gear (34); and a support bushing (5). The support bushing (5) is further fixed onto the spring frame (40), the fixed end (30) of the main shaft (3) is further provided with an adjusting part (36) used for driving the main shaft (3) to rotate, an outer pin hole (50) that makes the inside and the outside of the support bushing (5) communicated is formed on the sidewall of the support bushing (5), an inner pin hole (38) is correspondingly formed on the outer sidewall of the main shaft (3), and when the main shaft (3) is driven by the adjusting part (36) to rotate until the inner pin hole (38) is aligned with the outer pin hole (50), a safety pin is inserted into the inner pin hole (38) and the outer pin hole (50) so that the main shaft (3) is fixed relative to the support bushing (5). The device can achieve automatic rolling of a blinds fabric to an initial state.
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Inventors:
LEI ZHENBANG (CN)
LEI XINGBANG (CN)
LEI XINGBANG (CN)
Application Number:
PCT/CN2022/115803
Publication Date:
March 07, 2024
Filing Date:
August 30, 2022
Export Citation:
Assignee:
LEAFY WINDOWARE CO LTD (CN)
International Classes:
E06B9/68; E06B9/42
Foreign References:
| CN107060625A | 2017-08-18 | |||
| US20150184457A1 | 2015-07-02 | |||
| CN103388445A | 2013-11-13 | |||
| CN110439451A | 2019-11-12 | |||
| US20170321480A1 | 2017-11-09 | |||
| EP3163005A1 | 2017-05-03 | |||
| JP2001040966A | 2001-02-13 |
Attorney, Agent or Firm:
SHENZHEN EASYPRO INTELLECTUAL PROPERTY OFFICE (GENERAL PARTNERSHIP) (CN)
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