| 摘要 |
A blind (10) including a head rail (12), and a plurality of slats (14) suspended from the head rail (12) by means of tilt cables (18) and the associated cross cords which together comprise the ladder tapes (22). Two lift cords (16) extend through holes (17) in the slats (14) and are fastened at the bottom of the bottom slat (or bottom rail)(14A), which is heavier than the other slats (14), as is well known in the art. Inside the head rail (12) are a coaxial coil spring motor module (20), a transmission module (30), two lift and tilt modules (40), a tilt mechanism module (50), and a tilt only module (60). There are several ways the slats (14) may be tilted. This tilt mechanism module (50) pulls on one side or the other of the ladder tapes (22) to rotate the slats (14), as will be described later. Also housed in the head rail (12) are a tilt rod (24), and a lift rod (26). The tilt only station (60) provides additional support for the slats (14) so they will not sag. A lift and tilt module (40) could be used instead of the tilt only station (60) requiring additional force from the coil spring motor module (20) to overcome the additional system inertia of the lift and tilt module (40) as compared to that of the tilt only station (60). <IMAGE> |
