Floor wiper frame

In a frame for a floor wiper comprising a flat frame shape equipped with a handle socket, which frame is designed to be introduced at its longitudinal ends into the end pockets of a replaceable mop, consisting of two frame members foldable towards one another about a pivot pin extending substantially parallel to the bottom surface of said flat frame shape, one of said two frame members having a T-shape and the other frame member having a U-shape, said T-shape member and said U-shape member being adapted to form a substantially rectangular plate flat frame shape, said pivot pin extending substantially perpendicularly to the longitudinal direction of the arms of the T-shape and the U-shape of said two frame members, the extended arm of said T-shape member abutting the flat part of said U-shape member and said abutting area being provided with a lock means comprising a permanent magnet and counter-plate forming a permanent magnet clamp whereby said two frame members are lockable in the fully extended or stretched position, the improvement consisting essentially of providing a pedal pivotting about a second pivot pin extending substantially parallel to the bottom surface of said flat frame shape extending between the arms of said U-shape frame member, said pedal being disposed to engage the end of the arm of said T-shape frame member and being moveable in the direction of separation of said two frame members thereby releasing said permanent magnet clamp locking means.