Automatic faucet

An automatic faucet comprising:

• a) an elongated spout body having a base plate and being fixed to a mounting plate surface, said spout body having a discharge water port at a first end thereof;
• b) a discharge water flow path extending internally through the full length the spout body, said flow path having a second opening at a second end thereof adapted to be connected to hot water and cold water supply pipes, and a first opening at said first end in communication with the water discharge port;
• c) a protective cover for the sensor is removably mounted on the inner surface of the spout body, said cover cooperating with the spout body to form a spout and forming a fitting space for a storing a sensor, and a sensor cord is provided extending between the inner surface of the spout body and the protective cover;
• d) a drive portion unit for supplying mixed hot and cold water to said flow path at a moderate temperature from hot and cold water supply pipes;
• e) said drive portion unit being housed in said spout body, said drive portion unit comprising a hot water and cold water mixing valve, wherein the upstream side of said valve is in communication with the hot water and cold water supply pipes, and further comprising an electromagnetic closing valve having an upstream side coupled to said mixing valve, the downstream side of said closing valve being connected to a discharge port, and further comprising a controller for controlling the driving of at least the electromagnetic closing valve, a sensor for sending an output signal to the controller, and a battery type power source for feeding power to at least the electromagnetic closing valve, the controller and the sensor.

An automatic faucet comprising:

• a) an elongated spout body having a base plate and being fixed to a mounting plate surface, said spout body having a discharge water port at a first end thereof;
• b) a discharge water flow path extending internally through the full length the spout body, said flow path having a second opening at a second end thereof adapted to be connected to hot water and cold water supply pipes, and a first opening at said first end in communication with the water discharge port;
• c) a protective cover for the sensor is removably mounted on the inner surface of the spout body, said cover cooperating with the spout body to form a spout and forming a fitting space for a storing a sensor, and a sensor cord is provided extending between the inner surface of the spout body and the protective cover;
• a
• d) a drive portion unit for supplying mixed hot and cold water to the flow path at a moderate temperature from hot and cold water supply pipes in response to a sensor output from said sensor, said drive portion unit enclosing an electromagnetic closing valve and a control device for opening and closing the electromagnetic closing valve in response to a sensor output from said sensor;
• e) a dry cell case for storing a dry cell therein integrally connected to a control base plate fitting bracket forming a part of the control device to constitute an assembly, said assembly being incorporated into the drive portion unit;
• and
• f) a contact for the dry cell connected to the control base plate being mounted on the control base plate fitting bracket, wherein the dry cell and the control base plate are electrically connected via the contact for the dry cell when the dry cell is mounted in the dry cell case.

An automatic faucet comprising:

• a) an elongated spout body having a base plate and being fixed to a mounting plate surface, said spout body having a discharge water port at a first end thereof;
• b) a discharge water flow path extending internally through the full length the spout body, said flow path having a second opening at a second end thereof adapted to be connected to hot water and cold water supply pipes, and a first opening at said first end in communication with the water discharge port;
• c) a protective cover for the sensor is removably mounted on the inner surface of the spout body, said cover cooperating with the spout body to form a spout and forming a fitting space for a storing a sensor, and a sensor cord is provided extending between the inner surface of the spout body and the protective cover;
• d) a drive portion unit for supplying mixed hot and cold water to the flow path at a moderate temperature from hot and cold water supply pipes in response to a sensor output from said sensor, said drive portion unit enclosing an electromagnetic closing valve and a control device for opening and closing the electromagnetic closing valve in response to a sensor output from said sensor;
• e) a dry cell case for storing a dry cell therein integrally connected to a control base plate fitting bracket forming a part of the control device to constitute an assembly, said assembly being incorporated into the drive portion unit;
• and
• f) a contact for the dry cell connected to the control base plate being mounted on the control base plate fitting bracket, wherein the dry cell and the control base plate are electrically connected via the contact for the dry cell when the dry cell is mounted in the dry cell case, the poles of the power source input terminal of the control base plate of the control device being short circuited when the dry cell is not mounted in the dry cell case, to thereby erase a change on the control device.

An automatic faucet comprising:

• a) an elongated spout body having a base plate and being fixed to a mounting plate surface, said spout body having a discharge water port at a first end thereof;
• b) a discharge water flow path extending internally through the full length the spout body, said flow path having a second opening at a second end thereof adapted to be connected to hot water and cold water supply pipes, and a first opening at said first end in communication with the water discharge port;
• c) a protective cover for the sensor is removably mounted on the inner surface of the spout body, said cover cooperating with the spout body to form a spout and forming a fitting space for a storing a sensor, and a sensor cord is provided extending between the inner surface of the spout body and the protective cover;
• d) a drive portion unit for supplying mixed hot and cold water to the flow path at a moderate temperature from hot and cold water supply pipes in response to a sensor output from said sensor;
• e) a discharge water flow path connecting pipe having an upper end connected to a lower portion of said spout body, said discharge water flow path extending downwardly through a spout fitting in a spout fitting plate;
• and
• f) a lower fitting washer and a fastening nut mounted in a vertically superposed state around the outer peripheral surface of an extended portion below the discharge water flow path connecting pipe, said fastening nut being threaded on an external threaded portion on said extended portion below the discharge water flow path connecting pipe to press the lower fitting washer to the spout fitting plate, said lower fitting washer being approximately in the shape of a horse-shoe to form a cutaway space in the outer peripheral edge thereof, sensor cords being connected to the sensor on the spout and being inserted into said cutaway space;
• g) a downwardly extending guide pin for guiding the washer being provided below the spout;
• and
• h) a pin insert hole for inserting a guide pin being provided in the lower washer.

An automatic faucet comprising:

• a) an elongated spout body having a base plate and being fixed to a mounting plate surface, said spout body having a discharge water port at a first end thereof;
• b) a discharge water flow path extending internally through the full length the spout body, said flow path having a second opening at a second end thereof adapted to be connected to hot water and cold water supply pipes, and a first opening at said first end in communication with the water discharge port;
• c) a protective cover for the sensor is removably mounted on the inner surface of the spout body, said cover cooperating with the spout body to form a spout and forming a fitting space for a storing a sensor, and a sensor cord is provided extending between the inner surface of the spout body and the protective cover;
• and
• d) a drive portion unit for supplying mixed hot and cold water to the flow path at a moderate temperature from hot and cold water supply pipes in response to a sensor output from said sensor, said drive portion unit enclosing an electromagnetic closing valve, a control device for opening and closing the electromagnetic closing valve in response to a sensor output from said sensor, and a thermostat type mixing valve;
• e) a temperature setting screw on said mixing valve, said setting screw being exposed to the front surface of a front panel of said casing for said mixing valve, a collar ring fitted over said temperature setting screw, a cover ring having an internal surface with a projection and a notch extending from the surface to the inside being fitted on the outside of the collar ring, the cover ring being secured to the temperature setting screw with interference of the temperature setting screw and the projection, and a part of the collar ring being viewable from externally of said faucet through said notch.