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A platform for research: civil engineering, architecture and urbanism
PROBLEM TO BE SOLVED: To provide a shading curtain lifting device for preventing a shade from descending by dead weight because a motor cannot support weight of the shade when stopping the motor.SOLUTION: An electrically-driven roman shade device pulls up the shade to which a cord 4 is fixed, by winding the cord 4 attached on winding drums 5A and 5B on the winding drums 5A and 5B by rotating the winding drums 5A and 5B. A winding surface of each of the winding drums 5A and 5B has an elliptical cross-sectional shape in a cross-sectional view. When short diameter parts 54 of the winding drums 5A and 5b are positioned above and below a rotary shaft 71a, a torque applied to the motor becomes larger than resting holding force of the motor, and the winding drums 5A and 5B rotate in the feeding direction. When the winding drums 5A and 5B rotate until the short diameter parts 54 of the winding drums 5A and 5B are positioned on the left and right of the rotary shaft 71a, the torque applied to the motor becomes smaller than the resting holding force of the motor, and rotation of the winding drums 5A and 5B stops.
【課題】モータ停止時にモータがシェードの重量を支えられずにシェードが自重で下降するのを防止する遮光幕昇降装置を提供する。【解決手段】電動ローマンシェード装置は、巻取ドラム５Ａ，５Ｂを回転させることで巻取ドラム５Ａ，５Ｂに取り付けられたコード４を巻取ドラム５Ａ，５Ｂに巻き取り、コード４が固定されたシェードを引き上げる。巻取ドラム５Ａ，５Ｂの巻取面は、断面視において楕円形の断面形状を有している。巻取ドラム５Ａ，５Ｂの短径部５４が回転軸７１ａの上下に位置している場合には、モータにかかるトルクがモータの静止保持力より大きくなり、巻取ドラム５Ａ，５Ｂが導出方向に回転する。巻取ドラム５Ａ，５Ｂの短径部５４が回転軸７１ａの左右に位置するまで巻取ドラム５Ａ，５Ｂが回転すると、モータにかかるトルクがモータの静止保持力より小さくなり、巻取ドラム５Ａ，５Ｂの回転が停止することを特徴とする。【選択図】図４
PROBLEM TO BE SOLVED: To provide a shading curtain lifting device for preventing a shade from descending by dead weight because a motor cannot support weight of the shade when stopping the motor.SOLUTION: An electrically-driven roman shade device pulls up the shade to which a cord 4 is fixed, by winding the cord 4 attached on winding drums 5A and 5B on the winding drums 5A and 5B by rotating the winding drums 5A and 5B. A winding surface of each of the winding drums 5A and 5B has an elliptical cross-sectional shape in a cross-sectional view. When short diameter parts 54 of the winding drums 5A and 5b are positioned above and below a rotary shaft 71a, a torque applied to the motor becomes larger than resting holding force of the motor, and the winding drums 5A and 5B rotate in the feeding direction. When the winding drums 5A and 5B rotate until the short diameter parts 54 of the winding drums 5A and 5B are positioned on the left and right of the rotary shaft 71a, the torque applied to the motor becomes smaller than the resting holding force of the motor, and rotation of the winding drums 5A and 5B stops.
【課題】モータ停止時にモータがシェードの重量を支えられずにシェードが自重で下降するのを防止する遮光幕昇降装置を提供する。【解決手段】電動ローマンシェード装置は、巻取ドラム５Ａ，５Ｂを回転させることで巻取ドラム５Ａ，５Ｂに取り付けられたコード４を巻取ドラム５Ａ，５Ｂに巻き取り、コード４が固定されたシェードを引き上げる。巻取ドラム５Ａ，５Ｂの巻取面は、断面視において楕円形の断面形状を有している。巻取ドラム５Ａ，５Ｂの短径部５４が回転軸７１ａの上下に位置している場合には、モータにかかるトルクがモータの静止保持力より大きくなり、巻取ドラム５Ａ，５Ｂが導出方向に回転する。巻取ドラム５Ａ，５Ｂの短径部５４が回転軸７１ａの左右に位置するまで巻取ドラム５Ａ，５Ｂが回転すると、モータにかかるトルクがモータの静止保持力より小さくなり、巻取ドラム５Ａ，５Ｂの回転が停止することを特徴とする。【選択図】図４
SHADING CURTAIN LIFTING DEVICE
遮光幕昇降装置
MAESAKI SHU (author)
2015-06-25
Patent
Electronic Resource
Japanese
IPC:
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
Sun shading curtain and flexible thin object clamping mechanism applied to sun shading curtain
| European Patent Office | 2020