Abstract: An auger-type ice making machine includes an ice making barrel, an auger provided in the ice making barrel, an upper bearing and a lower bearing which are provided inside the ice making barrel for supporting the auger rotatably, and a drive unit for rotating the auger. At the bottom end of the ice making barrel, a connecting flange extending outwardly in the radial direction is formed integrally with the ice making barrel by friction welding. The connecting flange is tightened to the top surface of a casing of the drive unit with bolts. A bearing housing of the lower bearing is fixed in the ice making barrel apart from the casing with a bolt which is screwed in the ice making barrel. The bearing housing of the lower bearing may alternatively be fixed by forming an outward flange and a plurality of projections extending outwardly at the bottom end of the bearing housing and by fitting the plurality of projections in a fitting groove of the casing of the drive unit.

Abstract: A bearing structure for an auger-type ice making machine 10 includes an auger 17 having a helical blade 17a which rotates within a cylindrical refrigeration casing 11 so as to scrape off ice generated on the inner surface of the refrigeration casing 11 and push it up and out of the casing. A slide bearing 27 for supports an upper shaft section 17b of the auger 17 and a press head 25 is provided inside the upper end portion of the refrigeration casing 11 and which supports the slide bearing 27. Even if the upper shaft section 17b of the auger 17 and the press head 25 axially relatively move as a result of the scraping oil and feeding-out of the ice, substantially closed first and second foreign matter trapp spaces A and B are formed in close proximity to the lower and upper ends of the slide bearing. Further, a high-hardness metal layer 17f having a thickness, for example, of approximately 0.5 mm is formed on the surface of the upper shaft section 17b of the auger 17.

Abstract: An auger type ice making machine according to the present invention comprises a refrigeration casing 11 around which a refrigerant evaporation pipe 13 is wound, an auger 17 rotatably disposed in said refrigeration casing and having a blade 17b formed thereto, and a press head 27 fixed to the inside of the refrigeration casing at the upper end thereof and having an ice compression passage formed in an axial direction. A high-hardness metal layer 35 composed of a self-melting metal is formed to the upper rotary shaft 17c of the auger 17 passing through the center hole 27c of the press head, a resin slide bearing 29 in contact with the metal layer 35 is fixed to the center hole of the press head in such a manner that the slide bearing 29 projects from the boundaries of the high-hardness metal layer at the both ends thereof and covers the entire surface of the metal layer 35, and the upper rotary shaft 17c of the auger 17 is supported by the press head 27 through the slide bearing 29.

Abstract: A bearing structure for an auger-type ice making machine 10 includes: an auger 17 having a helical blade 17a which rotates within a cylindrical refrigeration casing 11 so as to scrape off ice generated on the inner surface of the refrigeration casing 11 and push it up and out of the casing; a slide bearing 27 for supporting an upper shaft section 17b of the auger17; and, a press head 25 which is provided inside the upper end portion of the refrigeration casing 11 and which supports the slide bearing 27, wherein even if the upper shaft section 17b of the auger 17 and the press head 25 make an axial relative movement as a result of the scraping off and feeding-out of the ice, substantially closed first and second foreign matter trapp spaces A and B are formed in close proximity to the lower and upper ends of the slide bearing. Further, a high-hardness metal layer 17f having a thickness, for example, of approximately 0.5 mm is formed on the surface of the upper shaft section 17b of the auger 17.

Abstract: An auger type ice making machine having an upright evaporator housing the interior of which is formed with a cylindrical freezing surface, an auger mounted for rotary movement within the evaporator housing and drivingly connected at its lower end with an electric motor to scrape ice crystals off the freezing surface and to advance the scraped ice crystals toward an upper end of the evaporator housing, an extrusion head fixed in place within the upper end portion of the evaporator housing to compress the scraped ice crystals advanced thereto by rotation of the auger and extrude the compressed ice crystals upwardly, a drain pipe provided with an electrically operated drain valve and connected to a lower end portion of the evaporator housing to discharge supplied water from the evaporator housing when the drain valve is opened by its energization and an electric heater mounted on an outer periphery of the evaporator housing at a place corresponding with the extrusion head, wherein the electric heater is energize

Abstract: An auger-type ice making machine includes a refrigerating cylinder 5, an auger 6 disposed rotatably within the refrigerating cylinder 5 and provided with a spiral blade 6a, a driving motor 8 for driving rotatively the auger 6 and an electric heater mounted around an outlet end portion of the refrigerating cylinder into and through which ice is transported under the effect of rotation of the auger. A coolant vaporizing tube is wound around outer periphery of the refrigerating cylinder, and raw water is fed into the refrigerating cylinder via a feed water pipe. When jamming of ice takes place within the refrigerating cylinder 5, an overcurrent flows through the driving motor 8. The overcurrent is detected by a protector 23 incorporated in a control circuit 30, whereupon the electric heater 22 is electrically energized.

Abstract: A protective device for an auger type ice making machine having an auger type ice making mechanism the refrigeration housing of which is located adjacent an ice storage bin and provided thereon with an ice discharge casing forming a lateral discharge passage for discharging ice pieces into the storage bin through an upright delivery chute. The protective device is in the form of a spout switch assembly which is mounted on an upper wall of the ice discharge casing at a position laterally displaced from an upper end of the refrigeration housing to detect ice pieces filled in the ice discharge casing during operation of the ice making mechanism.

Abstract: When an upper limit float switch Fu is closed after a lower limit float switch Fl is closed according to a rise of the level of water in a water tank 60, a solenoid water valve WV is closed and power supply to an electric motor for driving an auger 40 and a compressor connected to an evaporator 30 is then allowed. When the lower limit float switch Fl is opened, the solenoid water valve WV is opened and power supply to the electric motor and compressor is cut off. When the lower limit float switch Fl is opened, a time set longer by a predetermined time than the time for the water level in the water tank 60 to reach the upper limit from the lower limit is measured. When the lower limit float switch Fl is kept open due to suspension of water supply, the solenoid water valve WV is closed in response to the completion of measurement of the time. This can suppress power consumption of the solenoid water valve WV.

Abstract: A food service counter of the ice storage type which includes an ice storage tank 20 arranged to store an amount of ice and having a discharge hole 24 at a bottom, an ice supply device 30 for automatically producing chips of ice and supplying the same into the ice tank 20, and an agitating device 40 arranged within the ice tank 20 for agitating and leveling the chips of ice stored in the ice tank 20.

Abstract: An ice storage type food service counter composed of an ice storage tank 20 arranged to store an amount of ice and having a drain hole 24 at a bottom, an ice supply device 30 for automatically producing chips of ice and supplying them into the tank, an agitating device 40 arranged within the tank for agitating and leveling the chips of ice stored in the tank, a container assembly B detachably mounted on the agitating device 40 and placed on the stored chips of ice to contain drink and food therein, and a transparent cover plate 18 coupled over the ice storage tank 20, the cover plate having an opening through which the container assembly can be placed on the stored chips of ice.

Abstract: An ice storage type food service counter includes an ice storage tank (20) arranged to store an amount of ice and having a drain hole (24) at a bottom, an ice supply device (30) for automatically producing chips of ice and supplying the same into the ice storage tank (20), an agitating device (40) arranged within the ice storage tank for agitating and leveling the chips of ice stored in the ice storage tank, a container (B) formed to contain food and drink therein and mounted on the agitating device (40) to be displayed on the stored chips of ice, a water supply tank (50) arranged to store an amount of ice making water for use in the ice supply device (30), and a discharge tank (60) arranged below the ice storage tank (20) to store the water of melted ice discharged from the ice storage tank through a drain pipe (61) in connection to the drain hole.

Abstract: In an ice storage type food service counter with an ice storage tank, an ice supply device is provided to automatically produce chips of ice and supply the same into the ice storage tank, and an agitating device is provided to agitate and level the chips of ice stored in the ice storage tank. Under the ice storage tank, a water supply tank is arranged to store an amount of ice making water, and a discharge tank is arranged to store the water of melted ice discharged from the ice storage tank through a drain hole. Within the ice storage tank, there is provided an overlfow pipe having an upper end opening into the interior of the ice storage tank and extending downward to discharge therethrough the pieces of ice located above the upper end thereof into either one of the water supply tank or the discharge tank.

Abstract: An auger type ice making machine having an evaporator housing vertically arranged above an ice storage bin, an auger mounted for rotary movement within the evaporator housing, an electric motor in drive connection with the auger, a compressor motor in drive connection with a compressor, an ice discharge duct provided on an upper end of the evaporator housing, an upstanding tubular delivery chute having an upper end connected to the discharge duct and a lower end in open communication into the storage bin, a movable detection plate provided within the upper end of the delivery chute to be moved by abutment with pieces of hard ice accumulated in the delivery chute, and an electric control apparatus for activating the motors when the detection plate is retained in an initial position and for deactivating the motors after lapse of a predetermined time when the detection plate has been moved from the initial position, the predetermined time being determined to be shorter than a time for which a space between the d

Abstract: An auger type ice making machine comprises an ice storage level detecting apparatus (5) including an ice storage level sensing plate (5a) disposed within an ice guide barrel (3) at a position opposing to an ice discharge port (2). A pair of guide plates (7) for guiding ice discharged from the ice discharged port toward a center portion of the ice storage level sensing plate are mounted on both side walls (3b) of the ice guide barrel (3) closely adjacent to the ice storage level sensing plate (5). By mounting the paired guide plates (7), gaps otherwise taking place between the ice storage level sensing plate (5) and the ice guide barrel (3) are closed to thereby prevent the ice from moving to the rear side of the ice storage level sensing plate by circumventing it. The ice storage level sensing plate is thus protected from being blocked.

Abstract: An electric control apparatus for an auger type ice making machine having an auger mounted for rotary movement within an evaporator housing to which water is supplied from a water tank to cause ice crystals to form on the internal freezing surface of the evaporator housing.

Abstract: An electric control apparatus for an auger type ice making machine having an auger mounted for rotary movement within an evaporator housing to which water is supplied form a water tank to cause ice crystals to form on the internal freezing surface of the evaporator housing.

Abstract: An ice discharging apparatus of an ice dispenser comprises an openable door normally urged resiliently to a closed state by means of a torsion coil spring and adapted to be openable by a door actuator under the control of a control apparatus. The torsion coil spring includes an intermediate coil portion substantially of a cylindrical form and at least one end coil portion having an inner diameter greater than an average diameter of the intermediate coil portion in the unloaded state. The torsion coil spring has at least one arm extending from an end of the coil spring and having an extension secured in contact with a stationary part of the apparatus or a part of the openable door at an intermediate portion thereof and subsequently bent to constitute an inactive portion in which an annular mounting member for mounting the torsion coil spring is formed at the free end thereof.

Abstract: An auger-type ice making machine has a refrigerating cylinder having upper and lower bearings, an auger supported rotatably within the refrigerating cylinder by the upper and lower bearings, a water supply valve for supplying water to the refrigerating cylinder, a drain valve in fluid communication with the refrigerating cylinder for discharging water therefrom, an electric detector assembly including an electrode member having its one end extending into the refrigerating cylinder, and an electric control circuit electrically connected to the electrode member to receive a detection signal from the electric detector assembly. The electric control circuit determines on the basis of the detection signal that the impurity concentration of the water has increased beyond a predetermined level.

Abstract: An ice dispenser comprises an ice stroage chamber within which an agitator is rotatably mounted. In response to reception of an ice dispensation signal, a motor for driving the agitator is controlled in a predetermined timing sequence independent of a period during which ice pellets are dispensed from the ice storage chamber by means of an auger and a time interval intervening between the preceeding and succeeding ice dispensing operations. To this end, a first timer for driving first the agitator and a second timer for stopping the agitator for a predetermined period are provided in association with the agitator driving motor.

Abstract: An ice dispensing apparatus includes an ice dispensing lever which causes an ice dispensing signal to be produced when pressed, whereby an ice dispensing auger is driven for a period during which the ice dispensing signal is produced under the action of a relay (X.sub.5). In response to the ice dispensing signal, a motor for driving an agitator installed within an ice storage chamber is driven for a first period (t.sub.1) and then stopped. The rest state of the agitator driving motor is maintained until an integrated value resulting from integration of periods during which the ice dispensing signal is generated has attained the length of a second period (t.sub.2). After the lapse of the second period (t.sub.2), the agitator can be driven in response to subsequent generation of the ice dispensing signal.