Abstract: A window covering is disclosed, including a first rail, a second rail, and a shielding structure, wherein the second rail is movable between a high position and a low position through the driving of a cord, whereby the shielding structure can be raised and lowered. The first rail has a lifting mechanism provided therein, wherein the lifting mechanism includes a reeling device and a friction wheel. The reeling device is adapted to reel in or to release the cord, wherein the cord passes around and contacts the friction wheel. The cord provides a lateral pushing force to the friction wheel, pushing the friction wheel against a rubbed member to create friction, whereby to position the second rail accurately.

Abstract: A separable tilting device includes a case, a first driving member, a second driving member, and a connector. The first driving member and the second driving member are provided in a chamber of the case, and are movable by each other. The connector is connected to the first driving member, wherein the connector has an engaging slot. An end of a stop member of the case extends into the engaging slot, so that the connector could not be disengaged from the first driving member. An end of the connector is controllable to rotate the first driving member. Whereby, the first driving member and the second driving member are completely hidden inside the case, which prevents the tilting device or slats of a window covering from being damaged.

Abstract: A fitting for a shutter sash includes a bearing body, a support plate and a reinforcing rib. The bearing body consists of a stationary plate, a movable plate pivotally connected to one another. The stationary plate is fixed onto a window frame or the like, and the movable plate is fixed on a shutter sash so that the oscillating-swing shutter may pivotally rotate by means of the fitting. The support plate extends traversely from lower portion of the movable plate in a predetermined length. The reinforcing rib made integrally with and extending traversely from predetermined portion of the fitting orienting towards the shutter sash to form into a predetermined shape. A rabbet groove formed on the shutter sash in a corresponding position to the reinforcing rib so as to allow the reinforcing rib to be inserted and further improve the mechanical strength of the unit, so the shutter could be securely suspended thereon.