Title:
DUAL-RAIL DUAL-CONTROL LINKED LIMITER FOR DAY AND NIGHT BLINDS
Document Type and Number:
WIPO Patent Application WO/2024/027263
Kind Code:
A1
Abstract:
Disclosed in the present invention is a dual-rail dual-control linked limiter for day and night blinds, comprising a limiting seat, a lowering stop block, a raising stop block, a primary screen shaft, a main gear, a secondary screw shaft, and an auxiliary gear. The main gear is meshed with the auxiliary gear. A lowering stop protrusion is provided on the primary screen shaft. A raising stop protrusion and a synchronous linkage protrusion are provided on the secondary screw shaft. A synchronous linkage spur block is provided on an end surface of the auxiliary gear and spurs the synchronous linkage protrusion, so that an auxiliary mandrel rotates synchronously with a main mandrel. The limiter of the present patent adopts the technical solution above, in which dual-rail dual-control linked limiting control is achieved. When a blind bottom track moves up and pushes a blind top track up, causing a raising/lowering cord of a blind top track raising/lowering winder losing the gravity of the blind top track, the two tracks are synchronously linked by means of the limiter, so that the problems that the raising/lowering cord of the top track raising/lowering winder is loosened and arranged out of order are thoroughly solved, and operation of the day and night blinds is safer and more reliable.
Inventors:
QIU YONGZHONG (CN)
Application Number:
PCT/CN2023/093519
Publication Date:
February 08, 2024
Filing Date:
May 11, 2023
Export Citation:
Assignee:
GUANGZHOU JUE DECORATION WINDOW DECORATION TECH CO LTD (CN)
International Classes:
E06B9/322
Foreign References:
| CN115370278A | 2022-11-22 | |||
| CN218293428U | 2023-01-13 | |||
| CN218293429U | 2023-01-13 | |||
| CN216381157U | 2022-04-26 | |||
| CN101634217A | 2010-01-27 | |||
| CN112049556A | 2020-12-08 | |||
| CN200952337Y | 2007-09-26 | |||
| CN214997340U | 2021-12-03 | |||
| CN215292282U | 2021-12-24 | |||
| CN216341820U | 2022-04-19 | |||
| EP0703344A1 | 1996-03-27 |
Attorney, Agent or Firm:
ZHUANLI IP LAW FIRM et al. (CN)
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