Patent ID: 8763674
Filing Date: 2014-07-01
Classification: E06B

Abstract:
1. A solar radiation shielding apparatus comprising: a head rail; first and second shielding members hung from the head rail; a first lifting and lowering unit provided in the head rail and connected to the first shielding member; a second lifting and lowering unit provided in the head rail and connected to the second shielding member; and a single operating cord coupled to the first and second lifting and lowering units, the operating cord lifting and lowering the first and second shielding members independently by driving the first and second lifting and lowering units, wherein a rotating member is rotatably attached to the head rail, the operating cord is wound around the rotating member, the first lifting and lowering unit has a first input shaft rotatably attached to the head rail, the first input shaft to which a turning force of the rotating member is transferred without a turning force transfer mechanism or via the turning force transfer mechanism, a first output shaft rotatably attached to the head rail coaxially with the first input shaft, the first output shaft that can lift and lower the first shielding member, a first clutch provided between the first input shaft and the first output shaft, the first clutch transferring a turning force from the rotating member, the turning force in one direction, to the first output shaft via the first input shaft, the first clutch that does not transfer a turning force from the rotating member, the turning force in the other direction, to the first output shaft and does not transfer a turning force from the first output shaft to the first input shaft, and a first stopper provided in the first output shaft, the first stopper switching the first shielding member to a falling state or a stopped state with slight operation of the operating cord in one direction, and the second lifting and lowering unit has a second input shaft rotatably attached to the head rail, the second input shaft to which a turning force of the rotating member is transferred via a turning force transfer mechanism or without the turning force transfer mechanism a second output shaft rotatably attached to the head rail coaxially with the second input shaft, the second output shaft that can lift and lower the second shielding member, a second clutch provided between the second input shaft and the second output shaft, the second clutch transferring a turning force from the rotating member, the turning force in the other direction, to the second output shaft via the second input shaft, the second clutch that does not transfer a turning force from the rotating member, the turning force in one direction, to the second output shaft and does not transfer a turning force from the second output shaft to the second input shaft, and a second stopper provided in the second output shaft, the second stopper switching the second shielding member to a falling state or a stopped state with slight operation of the operating cord in the other direction, the first input shaft and the fist output shaft are oriented side-by-side in an axial direction of the first input shaft so as not to be positioned within each other in the axial direction of the first input shaft, and the second input shaft and the second output shaft are oriented side-by-side in an axial direction of the second input shaft so as not to be positioned within each other in the axial direction of the second input shaft.