ES298602A1 - Coin operated automatic vending machine, to brew and distribute hot coffee in cups - Google Patents

Abstract

"Coffee dispensing machine, with operation per sheet", characterized in that it comprises, arranged in the fixed part of a rectangular parallelepiped cabinet, on a plate fixed horizontally half the height and in the center, a set for the preparation of the beverage ; to a part of said assembly on the same plate a device for cards, in itself known, in which the card enters through a suitable slot made on the practicable front face of the furniture, and on the other hand a distributor of spatulas mixers, from which one passes each time, through a slope, to be placed on the bottom of a bowl, accessible from the outside through a window located in the aforementioned front face, while below the sheet they are arranged the drive motor with two pumps; a depot of purified water and one for water emulsified with silicones; a removable container for the collection of coffee residues while inside the practicable front face are the sugar lumps dispensing device and the vessel with waterproof material with slope for the discharge, each time, of a glass on the platform that, with the closed front face, is located below a drink distribution channel, accessible from the outside through a window made on the front and possibly closed from the outside with a guillotine shutter, where the set C consists of a rotating cube in a direction determined by jumps of an angle of 90º each time, which holds four arms at right angles to each other, each of them provided with a filter suitable to contain the dose of coffee powder meeting coaxially with three of the four mentioned stations of the filter, respectively above, the mouth of discharge of the ground coffee of a mill, estac ion I, the infusion water distributor channel connected to the hot water container under pressure through a normally closed valve station II, corresponding to the filter located in station III, the filter washing nozzles; also comprising a closed hydraulic circuit, controlled by a pump driven by electric motor for the control of all the hydraulic servomotor cylinders, coordinated for the necessary movements; a hydraulic circuit fed with potable water, regulated by a second pump driven by said electric motor, destined to provide the water at the desired pressure to the container containing the hot infusion water and the water for washing the filter, after the discharge of the funds, through a normally closed valve; a group of valves inserted in the closed circuit of the first pump, where a lever, under the action of a pulling force, normally has the valves in the unloading position in said hydraulic cylinders, establishing a device for hooking the lever , in contrast to the aforementioned tractive force, in the closed position of the electric circuit breaker of the single motor and in the position of valves in the working arrangement of said hydraulic servomotor cylinders, and a group of valves also inserted in said closed circuit of the water for the servomotors, where a lever under the action of a pulling force, normally keeps a valve closed in the delivery and open in the return, establishing a device for hooking the lever in contrast to the said force, in closing position Valve return and opening valve in the shipment; a hydraulic cylinder through which a piston moves, from whose cylinder a chamber is connected to the delivery of the pump through the second group of valves; the piston and its corresponding cylinder being in combination with another piston that moves hermetically in a corresponding cylinder, in contrast to a tensile force, under the action of the sealing pressure of the filter, which contains the dose of coffee powder; the piston rod of said piston, which leaves the cylinder, is suitable for carrying the control lever of the 1st. group of levers to a latching position when there is a pressure in the servomotor cylinder for sealing the filter in position II against the channel; the stem of the first cylinder, which comes out of it, in its stroke, to cooperate successively against a stop for the opening of the valve for washing the filter in position III, with a stop for the hooking of the control lever of the first group of valves, and with a stop for the hooking of the control lever of the valve group. (Machine-translation by Google Translate, not legally binding)