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AssigneesKewpie Corporation, Toyo Shokuhin Kikai Kabushiki Kaisha
InventorKenji Takasuga
Estimating the term…
In a container filling apparatus having a plurality of revolving charging cylinders and respective pistons by which a fluid filling material supplied into the cylinders with their pistons at the limit end of their intake strokes is subsequently pushed out of the cylinders and through nozzles to fill respective containers at a filling position, the containers being preparatorily positioned on respective revolving platforms, the piston rod of each of the charging cylinders can be locked at the start of its intake stroke by a respective locking mechanism when the mechanism, as it revolves with the cylinder, contacts and is actuated by a stationary actuating device operated in accordance with a detection signal generated by a monitoring device. When this monitoring device detects the absence of an empty container from its preparatory position on any platform, it generates the detection signal to lock the corresponding piston rod thereby to prevent containerless discharging of the filling material. A stationary resetting cam operates to unlock this piston rod when it has revolved past the filling position.
In a method of filling successively a prescribed quantity of a fluid material into respective containers by means of a plurality of charging cylinders arranged in a circle around a vertical main shaft to revolve therearound and having respective pistons while precluding discharge of the fluid material in the absence of a container to be filled, each of the cylinders being adapted to introduce thereinto the fluid material from a header chamber during the intake stroke of the piston thereof and then to discharge its filled material into a corresponding container during the discharge stroke of the piston, passageways of the introduction and discharge of the fluid material being established through a switching valve member, and switching of the valve member and reciprocal stroke of the cylinder piston being caused in relation to the revolution of the charging cylinders, an improvement in the preclusion process for discharge of the fluid material in the absence of a container to be filled comprising when the absence of a container at a filling position on a container platform is detected, the piston of the charging cylinder corresponding to the filling position is locked in response to the detection against the intake stroke thereof prior to the intake stroke and the locking is released after the piston and its cylinder have revolved past the filling position in order to prevent containerless discharging of the fluid material.
In a container filling apparatus of rotary type comprising a plurality of fluid material charging cylinders arranged in a circle around a vertical main shaft to revolve thereabout and having respective pistons, a plurality of containers preparatorily provided on respective container platforms which are successively revolved into a filling position in relation to revolution of the charging cylinders, each of the charging cylinders being adapted to introduce a fluid material thereinto from a material header chamber during the intake stroke of the piston thereof and subsequently to discharge its filled material into the corresponding container at its filling position on the container platform during the discharge stroke of the piston, a switching valve member for establishing passageways for the introduction and discharge of the fluid material, switching of the valve member and a reciprocal stroke of the cylinder piston being effected with respect to revolution of the charging cylinders, and a precluding means adapted to preclude containerless charging of the fluid material when the absence of a container at a filling position is detected, and improvement of the precluding means, the precluding means comprising:
Dependencies are inferred from the claim text.