| CPC E06B 9/42 (2013.01) [E06B 9/78 (2013.01); E06B 2009/2405 (2013.01); E06B 2009/405 (2013.01)] | 5 Claims |
|
1. A dual blind curtain comprising:
a body frame (100) including an upper plate (110) that forms an upper surface, side plates (120) that are provided on both sides of a bottom surface of the upper plate (110) and formed with a plurality of shaft holes (150), and one or more partition plates (130) that are provided inside the bottom surface of the upper plate (110) and formed with a plurality of shaft holes (150); a B driving part (200) comprising: a first rotation direction selection part (501) including a center shaft (551) that is installed to idle on the partition plate (130), which is provided inside the bottom surface of the upper plate (110) of the body frame (100) and formed with the plurality of shaft holes (150), and provided on an outer circumferential surface thereof with a locking protrusion (55-1), a center sprocket (571) that is installed on one side of the center shaft (551) and provided with a ball chain (571c) to generate a rotation force, a second idle gear clutch (521b) that is installed to idle around the center shaft (551), provided with a unidirectional connection port (52-b) in one side thereof, and engaged with a main pulley primary gear (511a), a first idle gear clutch (521a) that idles on the center shaft (551), is provided with a unidirectional connection port (52-a) in one side thereof to face the second idle gear clutch (521b) at a predetermined interval, and engages with an auxiliary pulley primary gear (511c), a center nut (531) that is positioned between the first and second idle gear clutches (521a and 521b), provided on an inner surface of a body thereof with a nut groove (53-1), and installed so that the body idles at the shaft hole (150) of the partition plate (130), and a center bolt (541) that rotates in an inner portion of the center nut (531), has a sliding hole (54-2) formed in a center of a body thereof to move left and right of the locking protrusion (55-1), is provided with unidirectional connection ports (54-a and 54-b) on both sides of a bolt body (54-1), respectively, and is provided with a bolt thread (54-3) on an outer circumferential surface of the bolt body (54-1); a main pulley shaft (27B1) that is installed to idle on the partition plate (130), which is provided inside the bottom surface of the upper plate (110) of the body frame (100) and formed with the plurality of holes (150); a main pulley (26B1) that is constantly coupled to the main pulley shaft (27B1) and rotates; the main pulley primary gear (511a) that engages with the second idle gear clutch (521b) of the first rotation direction selection part (501) to transmit the rotation force to the main pulley (26B1); a main pulley secondary gear (511b) that engages with a center gear (563) of a connection driving part (400) and transmits the rotation force transmitted to the main pulley (26B1); a winding rod connection port (290a) that connects the rotation force generated in the main pulley (26B1) to a winding rod (630a); an auxiliary pulley (26B2) that is constantly coupled to an auxiliary pulley shaft (27B2) and rotates, in which the auxiliary pulley (26B2) is installed to idle on the partition plate (130), which is provided inside the bottom surface of the upper plate (110) of the body frame (100) and formed with the plurality of shaft holes (150); an auxiliary pulley primary gear (511c) that engages with the first idle gear clutch (521a) of the first rotation direction selection part (501) to transmit the rotation force to the auxiliary pulley (26B2); an auxiliary pulley secondary gear (511d) that engages with a center gear (564) of the connection driving part (400) and transmits the rotation force transmitted to the auxiliary pulley (26B2); and a tape belt B (28B) that connects the rotation force of the main pulley (26B1) or the rotation force of the auxiliary pulley (26B2) to each other and is connected to central axes of the main pulley (26B1) and the auxiliary pulley (26B2) to be wound in a stacked manner; a D driving part (300) comprising: a second rotation direction selection part (502) including a center shaft (552) that is installed to idle on the partition plate (130), which is provided inside the bottom surface of the upper plate (110) of the body frame (100) and formed with the plurality of shaft holes (150), and provided on an outer circumferential surface thereof with a locking protrusion (55-1), a center sprocket (572) that is installed on one side of the center shaft (552) and provided with a ball chain (572c) to generate a rotation force, a first idle gear clutch (522a) that is installed to idle around the center shaft (552), provided with a unidirectional connection port (52-a) in one side thereof, and engaged with a main pulley primary gear (512a), a second idle gear clutch (522b) that idles on the center shaft (552), is provided with a unidirectional connection port (52-b) in one side thereof to face the first idle gear clutch (522a) at a predetermined interval, and engages with an auxiliary pulley primary gear (512c), a center nut (532) that is positioned between the first and second idle gear clutches (522a, 522b), provided on an inner surface of a body thereof with a nut groove (53-1), and installed so that the body idles at the shaft hole (150) of the partition plate (130), and a center bolt (542) that rotates in an inner portion of the center nut (532), has a sliding hole (54-2) formed in a center of a body thereof to move left and right of the locking protrusion (55-1), is provided with unidirectional connection ports (54-a and 54-b) on both sides of the bolt body (54-1), respectively, and is provided with a bolt thread (54-3) on an outer circumferential surface of the bolt body (54-1); a main pulley shaft (27D1) that is installed to idle on the partition plate (130), which is provided inside the bottom surface of the upper plate (110) of the body frame (100) and formed with the plurality of holes (150); a main pulley (26D1) that is constantly coupled to the main pulley shaft (27D1) and rotates; a main pulley primary gear (512a) that engages with the first idle gear clutch (522a) of the second rotation direction selection part (502) to transmit the rotation force to the main pulley (26D1); a main pulley secondary gear (512b) that engages with a connection gear set (240) of the connection driving part (400) and transmits the rotation force transmitted to the main pulley (26D1); a winding rod connection port (290b) that connects the rotation force generated in the main pulley (27D1) to a winding rod (630b); an auxiliary pulley (26D2) that is constantly coupled to an auxiliary pulley shaft (27D2) and rotates, in which the auxiliary pulley (26D2) is installed to idle on the partition plate (130), which is provided inside the bottom surface of the upper plate (110) of the body frame (100) and formed with the plurality of shaft holes (150); an auxiliary pulley primary gear (512c) that engages with the second idle gear clutch (522b) of the second rotation direction selection part (502) to transmit the rotation force to the auxiliary pulley (26D2); an auxiliary pulley secondary gear (512d) that engages with a connection gear set (230) of the connection driving part (400) and transmits the rotation force transmitted to the auxiliary pulley (26D2); and a tape belt D (28D) that connects the rotation force of the main pulley (26D1) or the rotation force of the auxiliary pulley (26D2) to each other and is connected to central axes of the main pulley (26D1) and the auxiliary pulley (26D2) to be wound in a stacked manner; the connection driving part (400) comprising: a third rotation direction selection part (503) including a center shaft (553) that is installed to idle on the partition plate (130), which is provided inside the bottom surface of the upper plate (110) of the body frame (100) and formed with the plurality of shaft holes (150), and provided on an outer circumferential surface thereof with a locking protrusion (55-1), a center gear (563) that is installed on one side of the center shaft (553) and engaged with the main pulley secondary gear (511b) of the B driving part (200) to receive the rotation force, a first idle gear clutch (523a) that is installed to idle around the center shaft (553) and provided with a unidirectional connection port (52-a) in one side thereof, a second idle gear clutch (523b) that idles on the center shaft (553) and is provided with a unidirectional connection port (52-b) in one side thereof to face the first idle gear clutch (523a) at a predetermined interval, a center nut (533) that is positioned between the first and second idle gear clutches (523a and 523b), provided on an inner surface of a body thereof with a nut groove (53-1), and installed so that the body idles at the shaft hole (150) of the partition plate (130), a center bolt (543) that rotates in an inner portion of the center nut (533), has a sliding hole (54-2) formed in a center of a body thereof to move left and right of the locking protrusion (55-1), is provided with unidirectional connection ports (54-a and 54-b) on both sides of a bolt body (54-1), respectively, and is provided with a bolt thread (54-3) on an outer circumferential surface of the bolt body (54-1), and the connection gear set (230) that engages with the auxiliary pulley secondary gear (512d) and transmits the rotation force of the second idle gear clutch (523b) to the auxiliary pulley secondary gear (512d); and the fourth rotation direction selection part (504) including a center shaft (554) that is installed to idle on the partition plate (130), which is provided inside the bottom surface of the upper plate (110) of the body frame (100) and formed with the plurality of shaft holes (150), and provided on an outer circumferential surface thereof with a locking protrusion (55-1), a center gear (564) that is installed on one side of the center shaft (554) and engaged with the auxiliary pulley secondary gear (511d) of the B driving part (200) to receive the rotation force, a first idle gear clutch (524a) that is installed to idle around the center shaft (554) and provided with a unidirectional connection port (52-a) in one side thereof, a second idle gear clutch (524b) that idles on the center shaft (553) and is provided with a unidirectional connection port (52-b) in one side thereof to face the first idle gear clutch (524a) at a predetermined interval, a center nut (533) that is positioned between the first and second idle gear clutches (524a and 524b), provided on an inner surface of a body thereof with a nut groove (53-1), and installed so that the body idles at the shaft hole (150) of the partition plate (130), a center bolt (543) that rotates in an inner portion of the center nut (533), has a sliding hole (54-2) formed in a center of a body thereof to move left and right of the locking protrusion (55-1), is provided with unidirectional connection ports (54-a and 54-b) on both sides of a bolt body (54-1), respectively, and is provided with a bolt thread (54-3) on an outer circumferential surface of the bolt body (54-1), and the connection gear set (240) that engages with the main pulley secondary gear (512b) and transmits the rotation force of the first idle gear clutch (524a) to the main pulley secondary gear (512b); and a curtain part (600) installed to idle on the side plate (120) and the partition plate (130), which is provided inside the bottom surface of the upper plate (110) of the body frame (100) and formed with the plurality of shaft holes (150), and including a curtain sheet (610) that is made by connecting one or more various pattern sheets and has one end wound around the winding rod (630a) connected by the winding rod connection ports (290a and 290b) and an opposite end wound around another winding rod (630b) by the rotation force of the main pulley shafts (27B1 and 27D1), and a weight bar (620) that is formed on a center of the curtain sheet (610) wound around opposite ends thereof.
|