Abstract: The present invention provides multi-blades scissors capable of reducing a load generated when a relatively hard object is cut. There is provided scissors including a plurality of pairs of blades, a first pair of blades among the plurality of pairs of blades deviating from a second pair of blades disposed adjacent to the first pair of blades with respect to a timing at which blades start engaging with each other.

Abstract: There is provided an air bed including (a) a plurality of air chambers arranged adjacent to one another and composed of air-impermeable sheet, (b) an air pump for introducing air to said air chambers, (c) a plurality of on/off valves each of which is located between each of said air chambers and said air pump, (d) a plurality of pressure sensors each of which senses a pressure in each of said air chambers and emits a signal accordingly, and (e) a controller receiving said signal from each of said pressure sensors and controlling on/off of each of said of/off valves in accordance with said signal. In accordance with the above-mentioned air bed, since the air pump is connected to each one of the air chambers, it is possible to control an internal pressure of each of the air chambers.