Hoshizaki Denki Kabushiki Kaisha

Koji Tsuchikawa

Hideyuki Ikari

Takashi Hibino

Hiroshi Torimitsu

Yoshinori Kamitani

Yukimasa Takeda

Naomoto Amano

Takeaki Funabashi

Yosuke Saito

Masahiro Fujita

Masanobu Nagira

Yshinori Kamitani

A method of operating an auger ice-making machine having a refrigeration casing, an auger screw rotatably disposed inside the casing and feeding, while scraping, the ice frozen on an inner wall surface of the casing, a stocker for storing/retaining the ice fed, the stocker being formed with an ice discharge port of the stocker in order to discharge the ice to an exterior of the machine by being opened, and a stored-ice detector for detecting a high level, and a low level, of a quantity of ice stored within the stocker, wherein: when the stored-ice detector detects the high level, a controller is activated to stop ice-making operation, and when the quantity of ice stored decreases below the low level by a required quantity, the controller restarts the ice-making operation; and when the controller judges, during a stopped state of the ice-making operation, that a block of ice has occurred in the stocker, the controller restarts the ice-making operation, provided that the stored-ice detector has detected the low level.

Method of operating auger ice-making machine

Method of operating auger icemaking machine

An auger-type ice making machine has an abnormality detecting device which detects a freezing of an ice-scraping auger on the basis of a hunting of current flowing through an auger motor. Current flowing through the auger motoris taken out by a current-voltage converter, and an instantaneous value of the taken-out voltage,waveform every predetermined time is A/D converted by an A/D converterwhich is provided at a controller board. A microcomputerdetects a peak value from the A/D converted instantaneous value for determining that abnormal current flows through the auger motor, when a hunting of the peak value occurs a predetermined number of times or more that is not less than 2 during a predetermined time, or when the state where the hunting of the peak value occurs a predetermined number of times or more that is not less than 2 during a first predetermined time is detected a predetermined number of times or more that is not less than 2 during a second predetermined time that is longer than the first predetermined time. As for the number of hunting times, a state wherein the peak value once becomes greater than a predetermined value, and then, becomes smaller than the predetermined value is counted as one number of hunting times.

Abnormality detecting device of auger-type ice making machine and abnormality detecting method thereof

Disclosed is an ice dispenser in which an agitating device ( ) is operated only when necessary to thereby prevent ice cubes in an ice storage vessel ( ) from sticking together, allowing ice to be smoothly discharged from the ice storage vessel ( ). The ice dispenser includes an ice-making device ( ), the ice storage vessel ( ), an ice discharge port ( ), an agitating device ( ) for agitating the ice in the ice storage vessel ( ), and an operation control device ( ) which operates the agitating device ( ) at the time of ice discharge or ice-making operation and which causes, when no ice-making operation is being performed, the agitating device ( ) to operate after an interval of a predetermined first set time for a predetermined second set time by timer means (TM , TM ), wherein when the agitating device ( ) is stopped by stopping the ice discharge or ice-making operation, the operation control device ( ) resets the timer means (TM ) to start the first set time.

Ice dispenser

An ice dispenser operates an agitator only when necessary so as to prevent ice in an ice storage compartment from fusing and sticking to each other, thereby ensuring smooth release of ice from the ice storage compartment. The ice dispenser is formed of an ice maker, an ice storage compartment, an ice releasing port, an agitator for agitating ice in the ice storage compartment, and an operation controller. The controller operates the agitator when releasing ice and making ice, and causes the agitator to operate for a predetermined second set time after allowing an interval of a predetermined first set time to pass by using a timer means when no ice is being made. The operation controller resets the timer means to start counting the first set time when an ice release or an ice making operation is stopped and the agitator is stopped.

A production system of electrolyzed water includes an electrolyzer the interior of which is subdivided into an anode chamber and a cathode chamber by means of a cation permeable membrane, a diluted brine tank arranged to store an amount of diluted brine to be supplied into the anode and cathode chambers of the electrolyzer, first and second water supply conduits connecting the brine tank to the anode and cathode chambers respectively, and first and second electrically operated hydraulic pumps provided on the first and second water supply conduits to supply the diluted brine from the brine tank into the anode and cathode chambers. To prevent an electric motor for the hydraulic pumps from corrosion caused by backward flow of electrolyzed water in the production system, the hydraulic pumps are deactivated upon the lapse of a predetermined time after application of the DC voltage to an anode and a cathode in the anode and cathode chambers has been interrupted.

Production system of electrolyzed water

A brine supply system including a first brine tank to store diluted brine of a predetermined concentration to be supplied into an electrolytic brine treatment device and a second brine tank to store an amount of saturated brine at a predetermined concentration. When the level of diluted brine becomes a lower limit level, the first brine tank is supplied with fresh water from an external supply source of water until the level of diluted brine becomes an upper limit level and is intermittently supplied with a predetermined amount of the saturated brine from the second brine tank. Based on a previously memorized supply time of the fresh water, a supply frequency and a supply interval of the saturated brine for the memorized supply time are calculated to maintain the diluted brine at the predetermined concentration even when the first brine tank is being supplied with the fresh water.

Brine supply system

A production system of electrolyzed water which includes a first brine tank arranged to store an amount of saturated brine, a second brine tank arranged to store an amount of diluted brine prepared by dilution of the saturated brine supplied from the first brine tank and an electrolyzer for electrolyzing the diluted brine supplied from the second brine tank. In the production system, an electric controller is adapted to maintain the level and concentration of diluted brine in the second brine tank and to correct the concentration of the diluted brine in accordance with a temperature of the diluted brine or pH of electrolyzed water produced in the electrolyzer.

An electric control apparatus for an icecream-making machine wherein a stirring paddle is settled in an icecream-forming container in conditions for thermal exchange with an evaporator of a refrigerating system and is driven by an electric motor to whip icecream ingredients stored in the container. The electric control apparatus is arranged to detect the rotational speed of the paddle for producing a pulse signal at a period inversely proportional to the detected rotational speed, to produce an output signal when 1/n of the period of the pulse signal is more than a predetermined period of time and to cease production of the output signal when 1/n of the period of the pulse signal becomes less than the predetermined period of time, and to permit supply of an electric power to the motor when production of the output signal is ceased and to cut off the supply of the electric power to the motor in response to the output signal.

Growing community of inventors

Toyoake, Japan

Koji Tsuchikawa