A method and apparatus for sizing window coverings slidably extendable from a bay into an aisle of a retail outlet. The method includes the steps of locating the center of the window covering relative to a cutting station utilizing a half scale for removing a portion of the window covering from each of its ends.

A purpose of the present invention is to provide a technology that allows corrugated tubes of various diameter sizes to be easily and reliably cut at a convex portion. In order to achieve the purpose, a cutting device is provided with a feeder feeding a corrugated tube such that an axial direction of the corrugated tube lies along a feeding path; a cutter cutting along a circumferential direction of the corrugated tube being fed along the feeding path; and an imager capturing an image of a planned cutting position of the corrugated tube. A controller performs image analysis of the captured image of the planned cutting position to determine whether the planned cutting position is a convex portion of the corrugated tube and, when a positive determination result is obtained, causes the cutter to cut the corrugated tube at the planned cutting position.

A purpose of the present invention is to provide a technology that allows corrugated tubes of various diameter sizes to be easily and reliably cut at a convex portion. In order to achieve the purpose, a cutting device is provided with a feeder feeding a corrugated tube such that an axial direction of the corrugated tube lies along a feeding path; a cutter cutting along a circumferential direction of the corrugated tube being fed along the feeding path; and an imager capturing an image of a planned cutting position of the corrugated tube. A controller performs image analysis of the captured image of the planned cutting position to determine whether the planned cutting position is a convex portion of the corrugated tube and, when a positive determination result is obtained, causes the cutter to cut the corrugated tube at the planned cutting position.