Abstract: Provided is a grinding machine that does not require work for replacing an upper roller (12) and a lower roller (14) and that ensures interchangeability thereof, even when the outer diameter of a workpiece (W) and the inclination state of the generating line of the workpiece (W) are different. A headstock (7) of the grinding machine comprises an upper-roller device (13) on which the upper roller (12) is rotatably supported, and a lower-roller device (15) on which the lower roller (14) is rotatably supported. The upper-roller device (13) and the lower-roller device (15) are provided with vertical position adjustment mechanisms (22), (46), respectively, for modifying the height position related to the vertical direction thereof, and a turn angle adjustment mechanism (21) for modifying the inclination angles of the upper-roller device (13) and the lower-roller device (15) with respect to the horizontal direction of the center axes thereof.

Abstract: Provided is a grinding machine that does not require work for replacing an upper roller (12) and a lower roller (14) and that ensures interchangeability thereof, even when the outer diameter of a workpiece (W) and the inclination state of the generating line of the workpiece (W) are different. A headstock (7) of the grinding machine comprises an upper-roller device (13) on which the upper roller (12) is rotatably supported, and a lower-roller device (15) on which the lower roller (14) is rotatably supported. The upper-roller device (13) and the lower-roller device (15) are provided with vertical position adjustment mechanisms (22), (46), respectively, for modifying the height position related to the vertical direction thereof, and a turn angle adjustment mechanism (21) for modifying the inclination angles of the upper-roller device (13) and the lower-roller device (15) with respect to the horizontal direction of the center axes thereof.

Abstract: In an air conditioner, filter deformation strings are disposed on an outer surface side of a bent portion of a filter, so that the bent portion of the filter is crushed when a predetermined tension is applied to the strings. When the strings are drawn, the bent portion of the filter is deformed to a plate like, and the filter can be readily removed from a casing through a filter-removable port of the casing. On the other hand, when the filter is attached into the casing, the deformed plate-like filter is inserted into the casing from the filter-removable port while drawing the strings, and thereafter, the strings are loosened so that the shape of the filter returns to an original shape.

Abstract: In an air conditioner, filter deformation strings are disposed on an outer surface side of a bent portion of a filter, so that the bent portion of the filter is crushed when a predetermined tension is applied to the strings. When the strings are drawn, the bent portion of the filter is deformed to a plate like, and the filter can be readily removed from a casing through a filter-removable port of the casing. On the other hand, when the filter is attached into the casing, the deformed plate-like filter is inserted into the casing from the filter-removable port while drawing the strings, and thereafter, the strings are loosened so that the shape of the filter returns to an original shape.