The invention to which this application relates is apparatus and a method for use with blinds and louvres, hereinafter referred to, in a non-limiting manner, as blinds and which includes roller blinds, roman blinds and Venetian blinds. The apparatus and method allows the free end of the blind to be selectively positioned and retained at a predetermined position intermediate the fully retracted and fully extended positions and to be retained at that position.

A tensioner for use with an architectural-structure covering including an operating element (e.g., a cord, a chain, or the like) is disclosed. The tensioner selectively securing a position of the operating element relative to the tensioner. In one embodiment, the tensioner includes a body, a slider, a bearing, and an optional biasing member. The body may include a first body member coupled to a second body member. The slider is movably positioned within the body between first and second positions to selectively enable movement of the operating element relative to the tensioner. The bearing includes a projection for coupling to the second body member to prevent the second body member from being decoupled from the first body member. In this manner, when the bearing is enclosed within the body, a user cannot readily open the body (e.g., a user cannot readily separate the first and second body members).

A tensioner for use with an architectural-structure covering including an operating element (e.g., a cord, a chain, or the like) is disclosed. The tensioner selectively securing a position of the operating element relative to the tensioner. In one embodiment, the tensioner includes a body, a slider, a bearing, and an optional biasing member. The body may include a first body member coupled to a second body member. The slider is movably positioned within the body between first and second positions to selectively enable movement of the operating element relative to the tensioner. The bearing includes a projection for coupling to the second body member to prevent the second body member from being decoupled from the first body member. In this manner, when the bearing is enclosed within the body, a user cannot readily open the body (e.g., a user cannot readily separate the first and second body members).

The present invention discloses a blind slat positioning device and a window blind thereof. The positioning device can fix the slat at any height at which the slat is pulled down. The positioning device includes a turning seat which is provided at least with an overbend element for a pull cord to wrap around. The overbend element includes at least a ridge, resulting an effect that the slat stops at the height at which the slat is pulled down, with the aid of gravity.

The present invention discloses a blind slat positioning device and a window blind thereof. The positioning device can fix the slat at any height at which the slat is pulled down. The positioning device includes a turning seat which is provided at least with an overbend element for a pull cord to wrap around. The overbend element includes at least a ridge, resulting an effect that the slat stops at the height at which the slat is pulled down, with the aid of gravity.

A handle is releasably secured to a rail wall by means of fasteners extending from inside the rail. An actuator shaft pushes against a contact plate to move a movable braking member to stop the rotation of a rod inside the rail.

A handle is releasably secured to a rail wall by means of fasteners extending from inside the rail. An actuator shaft pushes against a contact plate to move a movable braking member to stop the rotation of a rod inside the rail.

A pull-cord control device for a curtain without an operation cord includes a pull-cord (3), a base (1), and a pressing plate (2) rotatably mounted to the base through a rotation shaft (42). The base forms first friction shafts (11). The pressing plate forms second friction shafts (21) staggered with the first friction shafts. The pressing plate forms a fixing pole (41). A first end of the pull-cord is connected to a retractable-cord device (5), and a second end of the pull-cord extends between the first and second friction shafts, and is connected to a curtain body (6) after extending about the fixing pole. When the curtain body moves up and down, the pressing plate is rotated between a clamping position and a loose position. When the pressing plate is in the clamping portion, the second friction shafts actuate the pull-cord to wander between the first and second friction shafts.

A pull-cord control device for a curtain without an operation cord includes a pull-cord (3), a base (1), and a pressing plate (2) rotatably mounted to the base through a rotation shaft (42). The base forms first friction shafts (11). The pressing plate forms second friction shafts (21) staggered with the first friction shafts. The pressing plate forms a fixing pole (41). A first end of the pull-cord is connected to a retractable-cord device (5), and a second end of the pull-cord extends between the first and second friction shafts, and is connected to a curtain body (6) after extending about the fixing pole. When the curtain body moves up and down, the pressing plate is rotated between a clamping position and a loose position. When the pressing plate is in the clamping portion, the second friction shafts actuate the pull-cord to wander between the first and second friction shafts.

A controller assembly includes a housing, first and second tube units, and first and second runners. Each of the first and second runners slides on a respective one of the first and second tube units when the respective one of the first and second tube units is driven to rotate. In response to sliding of the first runner to bring the first runner into abutment with the second runner, the first runner is prevented from sliding over the second runner, whilst impeding rotation of the first tube unit. In response to sliding of the second runner to bring the second runner into abutment with the first runner, the second runner is prevented from sliding over the first runner, whilst impeding rotation of the second tube unit.