Abstract: A lubricant cartridge container includes a cylindrical member, and a moving member moving inside the cylindrical member toward a lubricant inflow portion side as a fluid lubricant flows toward the lubricant inflow portion side when subjected to a suction force from a lubricating pump side. The moving member has a first moving main body portion moving inside the cylindrical member and contacting with a shoulder portion, and a second moving main body portion contacting with the lubricant inflow portion after the first moving main body portion comes in contact with the shoulder portion. The second moving main body portion has a center portion contacting with the lubricant inflow portion, and a step portion connecting the center portion and the first moving main body portion. The center portion has a recess recessed in a polygonal shape formed by connecting a plurality of apexes in a plan view.

Abstract: A pump device for lubricant includes a pump main body; a cylinder part having an introduction port and a derivation port; a piston moving within the cylinder part; an actuator moving the piston forward to a 1st position to discharge a lubricant from the derivation port, backward from the 1st position to a 2nd position to suction the lubricant from the introduction port and further backward from the 2nd position to a 3rd position to stop the suction and discharge of the lubricant; and a driving control device controlling the actuator such that when the lubricant is supplied, the piston is moved from the 3rd position to the 1st position and moved between the 1st position and the 2nd position, and when the lubricant is not supplied, the piston is moved to the 3rd position and stopped.

Abstract: To provide a pump device for lubricant which is downsized and reduced in cost due to a simplified decompression structure.

Abstract: A cartridge tank for a lubrication agent which includes a container main body 10 in which a lubrication agent is sealed and an installation mouth part 20 which protrudes from the container main body and is provided with an opening 21 into which an oil-supply mouth part 7 of a lubrication pump 1 is inserted, wherein the cartridge tank is provided with a cover plug 40 which covers the opening of said installation mouth part, and the cover plug has a cut groove 41 which is to be cut by the oil-supply mouth part when the installation mouth part is installed in the concave part 4 of the lubrication pump, and the cut groove is provided with a circular circumferential groove 42 having a diameter greater than the diameter of the oil-supply mouth part and a plurality of vertical grooves 43 formed from the center of the circular circumferential groove to the circular circumferential groove.

Abstract: A cartridge tank for a lubrication agent which includes a container main body 10 in which a lubrication agent is sealed and an installation mouth part 20 which protrudes from the container main body and is provided with an opening 21 into which an oil-supply mouth part 7 of a lubrication pump 1 is inserted, wherein the cartridge tank is provided with a cover plug 40 which covers the opening of said installation mouth part, and the cover plug has a cut groove 41 which is to be cut by the oil-supply mouth part when the installation mouth part is installed in the concave part 4 of the lubrication pump, and the cut groove is provided with a circular circumferential groove 42 having a diameter greater than the diameter of the oil-supply mouth part and a plurality of vertical grooves 43 formed from the center of the circular circumferential groove to the circular circumferential groove.