GREASE TANK

PROBLEM TO BE SOLVED: To provide a grease tank having no possibility of breaking a member such as a lid when performing pressurized supply of grease, nor drawing air into the tank from the outside thereof when delivering the grease. SOLUTION: The grease tank includes a cylindrical container 21 to which the grease is pressurizingly supplied from the lower end portion thereof and from which the grease is sucked and delivered, the lid 40 connected to the upper end portion of the cylindrical container 21, and a follow plate 30 which can move vertically in sliding contact with the inner peripheral surface of the cylindrical container 21 so as to press the surface of the grease in the cylindrical container 21. The follow plate 30 and the cylindrical container 21 are formed to have portions (35a-35c, 36a-36h, 27, 24a-24d) to constitute a passage extending from the lower portion of the follow plate 30 via a space defined between the outer peripheral surface of the follow plate 30 and the inner peripheral surface of the cylindrical container 21 to the outside of the cylindrical container 21, when the follow plate 30 reaches a predetermined position of the cylindrical container 21. COPYRIGHT: (C)2005,JPO&NCIPI