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公开(公告)号：US20230295984A1
公开(公告)日：2023-09-21
申请号：US18116313
申请日：2023-03-02
发明人： Shui-Dong Wei , Lei Luo , Lin Chen
CPC分类号： E06B9/303 , E06B9/326 , E06B2009/285
摘要： A window blind, wherein each ladder tape thereof includes two longitudinal cords, plural bearers and plural limiting members. The longitudinal cords each have an end connected to a deflecting mechanism disposed on the upper rail. The bearers are disposed between the two longitudinal cords for respectively supporting the slats. The limiting members include a first limiting member and a second limiting member neighboring thereto. The first limiting member has an end disposed on one of the longitudinal cords and includes a first slat-through portion located between two ends thereof passing through a first through hole of a first slat. A first linking loop is formed after the first slat-through portion passes through the first through hole. The second limiting member passes through the first linking loop for keeping the first through hole threaded through by one of the first limiting member and the second limiting member.
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公开(公告)号：US11970901B2
公开(公告)日：2024-04-30
申请号：US17396087
申请日：2021-08-06
摘要： A window blind has a headrail, a bottom rail, and multiple slats provided below the headrail. In the headrail, an adjusting shaft and an auxiliary adjusting module are provided and connected. A ladder string is connected to the adjusting shaft, whereby the adjusting shaft adjusts a shape of the ladder string to tilt the slats and the bottom rail. A first cord and a second cord extend out of the headrail and are connected to opposite sides of the bottom rail. When the adjusting shaft drives the slats to tilt in a direction, the auxiliary adjusting module releases the first cord out of the headrail and retracts the second cord into the headrail. When the slats are tilted in an opposite direction, the auxiliary adjusting module retracts the first cord into the headrail and releases the second cord out of the headrail.
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公开(公告)号：US11549308B2
公开(公告)日：2023-01-10
申请号：US17023338
申请日：2020-09-16
摘要： A window blind includes a housing, a slat assembly, a slat angle adjusting device, and a first cord. The slat assembly is provided below the housing, and has multiple slats and a bottom end portion. The slat angle adjusting device includes a rotating shaft assembly provided in the housing, and a ladder assembly which includes at least two ladders connected to the rotating shaft assembly for turning the slats. The first cord passes on a front or a rear side of the slats, and connects the rotating shaft assembly and the bottom end portion. Throughout the duration of the rotation of the rotating shaft assembly, the first cord and a warp, which belongs to the ladder assembly and on the same side as the first cord, are both reeled into or out of the housing concurrently, and the slats and the bottom end portion are all rotated concurrently as well.
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公开(公告)号：US20240117671A1
公开(公告)日：2024-04-11
申请号：US18373994
申请日：2023-09-28
CPC分类号： E06B9/327 , E06B9/322 , E06B2009/3222
摘要： A cordless window covering includes a first rail, a second rail, a covering body, two pulling cords, and a cord-retracting device including a first casing and an adjusting member movably disposed on the first casing. When relative motion of the first rail and the second rail occurs, the covering body is extended or retracted, and the two pulling cords apply a first force and a second force in opposite directions to the adjusting member respectively. When the first force does not equal to the second force, the user can exert slight force on the second rail to move the adjusting member towards a side with greater force, making one of the pulling cords applying greater force to the adjusting member have its length between the first rail and the second rail elongate as the adjusting member moves, such that the non-horizontal state of the second rail can be easily corrected.
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公开(公告)号：US20210222487A1
公开(公告)日：2021-07-22
申请号：US17023338
申请日：2020-09-16
摘要： A window blind includes a housing, a slat assembly, a slat angle adjusting device, and a first cord. The slat assembly is provided below the housing, and has multiple slats and a bottom end portion. The slat angle adjusting device includes a rotating shaft assembly provided in the housing, and a ladder assembly which includes at least two ladders connected to the rotating shaft assembly for turning the slats. The first cord passes on a front or a rear side of the slats, and connects the rotating shaft assembly and the bottom end portion. Throughout the duration of the rotation of the rotating shaft assembly, the first cord and a warp, which belongs to the ladder assembly and on the same side as the first cord, are both reeled into or out of the housing concurrently, and the slats and the bottom end portion are all rotated concurrently as well.
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