초록 ▼

An automatic coffee-making machine comprising a grinder delivering ground coffee to a metering device storing a metered quantity of ground coffee and of releasing the metered quantity to a delivery chute displaceable from an inoperative position to an operative position above a fixed filter carrier

An automatic coffee-making machine comprising a grinder delivering ground coffee to a metering device storing a metered quantity of ground coffee and of releasing the metered quantity to a delivery chute displaceable from an inoperative position to an operative position above a fixed filter carrier in which is disposed a lower filter for the support of delivered ground coffee. The grinder is driven by a motor responsive to the delivery of a metered quantity of ground coffee to disconnect the motor from the grinder. A piston and cylinder arrangement delivers a measured quantity of hot water to the fixed filter carrier and is displaceable between a lower position to confine the ground coffee therein and to deliver hot water thereto and an upper position. The piston and cylinder arrangement is angularly displaced by camming surfaces responsive to the displacement between the lower and upper positions, and is displaced between the lower by a motor-driven linkage mechanism which also upper positions and displaces the lower filter to raise used ground coffee to an ejection position. The chute is angularly displaced by the piston and cylinder arrangement to the operative position in which it opens the metering device to receive and deliver the metered quantity of ground coffee to the fixed filter carrier in readiness for the next cycle of operation.

대표청구항 ▼

An automatic machine for the production of coffee from coffee beams comprising a support frame, a grinder supported by said frame, a metering device associated with said grinder to receive ground coffee and displaceable between an open and a closed position, a motor operable to drive said grinder, c

An automatic machine for the production of coffee from coffee beams comprising a support frame, a grinder supported by said frame, a metering device associated with said grinder to receive ground coffee and displaceable between an open and a closed position, a motor operable to drive said grinder, clutch plates interposed between said motor and said grinder to transmit drive, lever means associated with said metering device and operable by said metering device to control the engagement of said clutch plates to interrupt the drive from the motor to the grinder, a displaceable water dispensing piston and cylinder arrangement operable to heat and dispense water and including an upper filter, a source of water, the piston having a rod and means associated with the rod of the piston operable to raise said cylinder and to control the flow of water from said source to said cylinder while said cylinder is being raised from a lower to an upper position, spring means connected to said piston rod and operable to apply through said piston at the end of the return stroke thereof a pressure upon water in said cylinder, deflecting means operable to displace the cylinder at the end of the upward stroke of the piston, a pallet connected to and displaceable with said cylinder, a fixed filter carrier into which said cylinder extends in the lower position and free of said cylinder in the upper position thereof, a lower filter within said fixed filter carrier for the support of ground coffee, rod and spring means operable to displace said lower filter within said fixed filter carrier in preparation for the ejection by said pallet of a pellet of used ground coffee supported thereon, a chute displaceable between an inoperative position and an operative position above said fixed filter carrier for the supply of ground coffee thereto and operatively associated with said metering device to open and close said metering device by such displacement and receive a metered quantity of coffee therefrom and program means driven by said motor and operable in timed sequential relationship to raise said piston and cylinder arrangement, supply water to said cylinder from said source, raise said lower filter, expel a pellet of used ground coffee therefrom, return said lower filter, deliver ground coffee thereto, return said piston and cylinder arrangement and supply water to said fixed filter carrier.