US 12,326,039 B1
Multi-mode up-down curtain
Mingliang Wu, Fujian (CN)
Assigned to Mingliang Wu, Xiamen (CN); and Siyu Wu, Xiamen (CN)
Filed by Mingliang Wu, Fujian (CN); and Siyu Wu, Fujian (CN)
Filed on Sep. 26, 2024, as Appl. No. 18/896,942.
Claims priority of application No. 202422136748.6 (CN), filed on Sep. 2, 2024.
Int. Cl. E06B 9/42 (2006.01); E06B 9/24 (2006.01); E06B 9/40 (2006.01)
CPC E06B 9/42 (2013.01) [E06B 2009/2441 (2013.01); E06B 2009/405 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A multi-mode up-down curtain, comprising:
a winding component, comprising a support element and a roller rotatably mounted on the support element;
cord fabric, entirely or partially wound around an outer periphery of the roller; and comprising a light-transmitting section and a light-tight section; wherein the light-transmitting section and the light-tight section are connected along a stretching direction of the cord fabric; and the light-tight section is arranged below the light-transmitting section along the stretching direction;
an adjusting rod, fixedly connected to an end of the light-tight section away from the light-transmitting section; and a middle part of the light-tight section slidably threaded through a penetrating slot of the adjusting rod; wherein as the cord fabric is lifted and lowered, the adjusting rod is movable along a lowering path, and the lowering path comprises an upper extreme position and a lower extreme position;
a falling element, slidably connected to a lower part of the light-tight section, wherein the lower part of the light-tight section is located between the penetrating slot of the adjusting rod and the end of the light-tight section away from the light-transmitting section; and
at least one pair of positioning elements, each pair of the at least one pair of positioning elements being located at a stopping position between the upper extreme position and the lower extreme position of the lowering path of the adjusting rod, and each positioning element of the at least one pair of positioning elements comprising a locked position and an unlocked position,
wherein, when the cord fabric is lifted, the falling element abuts against the adjusting rod and is lifted together with the cord fabric; and
wherein when the cord fabric is lowered, and when the at least one pair of positioning elements is in the locked position, the adjusting rod is capable of being positioned at the stopping position by the at least one pair of positioning elements, at this time, the falling element is capable of being lowered continuously; and when the at least one pair of positioning elements is in the unlocked position, the adjusting rod is capable of passing over the stopping position.