Abstract: A protective device of an auger type ice making machine capable of coping with occurrence of a problem with a simple configuration. A protective device comprises a delay timer which starts counting simultaneously with the start of an auger motor. A compressor is started by the count up of the delay timer so as to start the ice making operation. At the same time, the energization to a shock relay is started, and a current-voltage converter contained therein detects a change in the current from the auger motor and converts into a voltage change followed by outputting. If no overload is applied on the auger motor and if the output voltage from the current-voltage converter is not an overload output voltage according to the overload current of the motor, steady operation continues without change. In contrast, if the output voltage from the current-voltage converter is an overload output voltage, the operation of the auger motor and compressor is stopped.

Abstract: An ice discharging mechanism for an ice storage box including a swinging solenoid (24) mounted by means of a swing shaft (23) fixed onto arm portions (22) of a bracket (21). A support plate (27) is welded onto a lower part of the bracket (21). One end of a plunger (33) and one end of a link member (34) are coupled with each other by means of a coupling shaft (31) inserted through a long hole (29) of the support plate (27). In a lower end portion of the bracket (21), a pivoting plate (37) that forms an opening/closing door is pivotably mounted to a fulcrum shaft (35) that is provided parallel to the swing shaft (23). A moving shaft (41) provided at the other end of the link member (34) is inserted through the pivoting plate (37) whereby the plunger (33) and the pivoting plate (37) are connected with each other.

Abstract: An auger type ice making machine is provided with a control unit for causing a hot gas valve to open and for causing a heater disposed in the vicinity of ice compression passages to perform heating for a time period longer than the opening period of the hot gas valve, in accordance with a detection result from a rotation detecting sensor which detects rotation of a motor rotating an auger. The opening period of the hot gas valve and the heating period of the heater consist of, respectively: a basic opening period and a basic heating period, each corresponding to a time period during which the rpm of the auger is not higher than a threshold value, and an additional opening period and an additional heating period which are respectively added to the basic opening period and the basic heating period and begin at the time when the auger rpm exceeds the threshold value.

Abstract: An auger type ice making machine is provided with a control unit for causing a hot gas valve to open and for causing a heater disposed in the vicinity of ice compression passages to perform heating for a time period longer than the opening period of the hot gas valve, in accordance with a detection result from a rotation detecting sensor which detects rotation of a motor rotating an auger. The opening period of the hot gas valve and the heating period of the heater consist of, respectively: a basic opening period and a basic heating period, each corresponding to a time period during which the rpm of the auger is not higher than a threshold value, and an additional opening period and an additional heating period which are respectively added to the basic opening period and the basic heating period and begin at the time when the auger rpm exceeds the threshold value.

Abstract: A pair of claw portions that may be elastically deformed are formed at both ends of a top surface of a base body of a detecting plate base. A circular arc portion and a switch holding portion are formed between the pair of claw portions. A recessed portion is formed on the lower surface side of the base body by the circular arc portion so that a detecting plate, which is mounted on the detecting plate base, may be rotated. A lead switch is attachably and detachably mounted on the switch holding portion. An apparatus for detecting an amount of stored ice is attachably and detachably fitted from the interior of the ice storing chamber to an opening portion formed in the top plate of the ice storing chamber by the claw portions of the detecting plate base.

Abstract: In an ice discharging mechanism of an ice storage box according to the present invention, a swinging solenoid 24 is mounted by means of a swing shaft 23 fixed onto arm portions 22 of a bracket 21. A support plate 27 is welded onto a lower part of the bracket 21. One end of a plunger 33 and one end of a link member 34 are coupled with each other by means of a coupling shaft 31 inserted through a long hole 29 of the support plate 27. In a lower end portion of the bracket 21, a pivoting plate 37 that forms an opening/closing door is pivotably mounted to a fulcrum shaft 35 that is provided parallel to the swing shaft 23. A moving shaft 41 provided to the other end of the link member 34 is inserted through the pivoting plate 37 whereby the plunger 33 and the pivoting plate 37 are connected with each other.

Abstract: An ice making machine in which upon starting of an ice making operation, a water level detecting switch starts measurement, and a water-supply-stop time T1 is compared with a reference time T2. When the water-supply-stop time T1 is not longer than the reference time T2, it is determined that the ice making machine is an excessive-ice-making state, and control is performed so as to reduce the RPM of a fan motor for cooling a condenser.

Abstract: Disclosed is an ice making machine in which upon starting of ice making operation, a water level detecting switch starts measurement, a water-supply-stop time T1 being compared with a reference time T2. When the water-supply-stop time T1 is not longer than the reference time T2, it is determined that the ice making machine is in an excessive-ice-making state, and control is performed so as to reduce the RPM of a fan motor for cooling a condenser.