Patent ID: 6439104
Filing Date: 2002-08-27
Classification: F04B,Y10T

Abstract:
A small size air pump in which a motor is driven to actuate a pump section, so as to carry out a predetermined aspirating operation; said air pump comprising:a worm gear disposed at an output shaft of said motor; a worm wheel, disposed between said motor and said pump section, meshing with said worm gear; a smaller gear disposed coaxial with said worm wheel; a larger gear, disposed at a position held between said motor and said pump section, meshing with said smaller gear; actuator element having one end pivotally connected to a periphery of a flat part of said larger gear and the other end connected to an end part of a piston of said pump section; and a support plate connecting said motor and said pump section to each other; and wherein a first axle part of said worm wheel and smaller gear and a second axle part of said larger gear are arranged in said support plate; and said motor, said pump section, and said larger gear are disposed in series in an axial direction of said output shaft.