Tensioner for an architectural-structure covering

A tensioner for use with an architectural-structure covering including a covering and an operating element, the operating element being arranged and configured to move the covering between an extended position and a retracted position, the tensioner selectively securing a position of the operating element relative to the tensioner, the tensioner comprising:

• a body having a first body member coupled to a second body member;
• a slider movably positioned within the body, the slider movable between first and second positions;
• and
• a bearing positioned within the body, the bearing guiding movement of the operating element;
• wherein, when the slider is in the first position, the operating element is captured between the bearing and a locking portion of the tensioner to prevent movement of the operating element relative to the body, and when the slider is in the second position, the bearing and the locking portion of the tensioner are spaced apart in a manner that permits movement of the operating element relative to the body;
• and
• a spring-loaded button mechanism moveable from a first button position to a second button position, wherein, when the spring-loaded button is in the first button position, the spring-loaded button mechanism is arranged and configured to prevent the slider from moving relative to the body from its first position to its second position.