Winder assembly

A method of installing a window winder assembly, the method comprising:

• providing a locking unit and a window winder, wherein the window winder comprises a rotatable handle, whereby rotation of the handle in a first or second rotational direction causes a corresponding movement of an actuating member in a first opening direction or a second closing direction, the actuating member being connectable to a window in order to move a window from a closed position to an open position;
• removing a handle of the window winder to expose a handle spindle;
• engaging a locking spindle of the locking unit to the window winder, wherein the locking unit comprises the locking spindle and a locking member, wherein the locking spindle is engaged with the handle spindle and the handle spindle is engaged to rotate with rotation of the locking spindle, and wherein a manual activation member enables a user to disengage the locking spindle from the locking member;
• moving a window in an opening direction to a predetermined partially open position;
• preventing rotation of the locking spindle with the locking member in a locked position, thereby preventing rotation of a handle spindle in the opening direction, and thereby preventing further movement of the actuating member in the opening direction,
• wherein the manual activation member requires a dual action with both actions being performed simultaneously in order to disengage the locking spindle from the locking member and in which the manual activation member comprises a first member and a second member which require independent manual operations to enable a user to disengage the locking spindle from the locking member.