Automatic faucet

Abstract

A cylindrical water spout member is provided inside the tip section of the water spout pipe, the optical fiber on the light projection side and the optical fiber on the light receiving side are passed inside the water spout pipe up to the tip section of the water spout pipe, and the tips of the optical fibers configure a light projection section and a light receiving section. Moreover, fitting convex section are provided on the outer surfaces of the tip sections of the optical fibers, and the fitting concave sections are provided on the outer surface of the water spout member. The tip sections of the optical fibers are fixed in a positioned state based on the concave-convex fitting.

1 . An automatic faucet, in which a cylindrical water spout member forming a water spout as a tip of a water path in a water spout pipe is provided inside the tip section of the water spout pipe, an optical fiber on a light projection side for guiding light from a light emitting element and an optical fiber on a light receiving side for guiding a reflected light from a detection target to a light receiving element are passed inside the water spout pipe up to the tip section of the water spout pipe, the tip of the optical fiber on the light projection side configures a light projection section, and the tip of the optical fiber on the light receiving side configures a light receiving section, and in which water is discharged from the water spout based on the detection of the detection target using an optical sensor,
 wherein a fitting convex section is provided in one of an outer surface of the tip section of each of the optical fiber on the light projection side and the optical fiber on the light receiving side and a fiber holding section of the outer surface of the water spout member, and a fitting concave section corresponding to that is provided in the other thereof, and   wherein the tip sections of the optical fibers are fixed in a positioned state based on the concave-convex fitting of the fitting convex section and the fitting concave section.   
     
     
         2 . The automatic faucet according to  claim 1 , further comprising
 a cover that covers a fixing section of the tip sections of the optical fibers to the outer surface of the water spout member.   
     
     
         3 . An automatic faucet, in which a cylindrical water spout member forming a water spout as a tip of a water path in a water spout pipe is provided inside the tip section of the water spout pipe, an optical fiber on a light projection side for guiding light from a light emitting element and an optical fiber on a light receiving side for guiding a reflected light from a detection target to a light receiving element are passed inside the water spout pipe up to the tip section of the water spout pipe, the tip of the optical fiber on the light projection side configures a light projection section, and the tip of the optical fiber on the light receiving side configures a light receiving section, and in which water is discharged from the water spout based on the detection of the detection target using an optical sensor,
 wherein a fitting convex section is provided in one of an outer surface of the tip section of each of the optical fiber on the light projection side and the optical fiber on the light receiving side and a fiber holding section of the cover fixed to the water spout member in a state of covering the outer surface of the water spout member, a fitting concave section corresponding to that is provided on the other thereof, and   wherein the tip sections of the optical fibers are fixed in a positioned state based on a concave-convex fitting of the fitting convex section and the fitting concave section.   
     
     
         4 . An automatic faucet, in which a cylindrical water spout member forming a water spout as a tip of a water path in a water spout pipe is provided inside the tip section of the water spout pipe, an optical fiber on a light projection side for guiding light from a light emitting element and an optical fiber on a light receiving side for guiding a reflected light from a detection target to a light receiving element are passed inside the water spout pipe up to the tip section of the water spout pipe, the tip of the optical fiber on the light projection side configures a light projection section, and the tip of the optical fiber on the light receiving side configures a light receiving section, respectively, and in which water is discharged from the water spout based on the detection of the detection target using an optical sensor,
 wherein a groove as a fiber holding section holding the tip sections of the optical fibers is provided on both of the outer surface of the water spout member and the inner surface of the cover that covers the outer surface in a state of facing each other, and the tip section of the optical fiber is fitted into the grooves, and   wherein a fitting convex section is provided in one of the outer surface of the tip sections of the optical fibers and the inner surfaces of the grooves, a fitting concave section is provided in the other thereof, and   wherein the tip sections of the optical fibers are fixed in a positioned state based on a concave-convex fitting of the fitting convex section and the fitting concave section.   
     
     
         5 . The automatic faucet according to  claim 1 ,
 wherein the tip sections of the optical fibers are placed and fixed in a straight line shape to be parallel to a pipe axis of the water spout pipe.   
     
     
         6 . An automatic faucet comprising:
 a water spout member that is provided inside a tip section of a water spout pipe and forms a water spout;   a light projection section having a first optical fiber that guides light from a light emitting element; and   a light receiving section having a second optical fiber that guides a reflected light from a detection target to a light receiving element, the automatic faucet discharging water from the water spout based on the detection of the detection target using an optical sensor,   wherein the first optical fiber has a first fitting convex section, and the second optical fiber has a second fitting convex section, and   wherein the water spout member has a first fitting concave section fitted to the first fitting convex section and a second fitting concave section fitted to the second fitting convex section.   
     
     
         7 . The automatic faucet according to  claim 6 , further comprising:
 a cover that covers the water spout member, the cover having a third fitting concave section which is fitted to the first fitting convex section of the first optical fiber provided in the water spout member, and a fourth fitting concave section which is fitted to the second fitting convex section of the second optical fiber provided in the water spout member.   
     
     
         8 . An automatic faucet comprising:
 a water spout member that is provided inside a tip section of a water spout pipe and forms a water spout;   a light projection section having a first optical fiber that guides light from a light emitting element;   a light receiving section having a second optical fiber that guides a reflected light from a detection target to a light receiving element; and   a cover that covers the water spout member, the automatic faucet discharging water from the water spout based on the detection of the detection target using an optical sensor,   wherein the first optical fiber has a first fitting convex section and the second optical fiber has a second fitting convex section, and   wherein the cover has a first fitting concave section fitted to the first fitting convex section and a second fitting concave section fitted to the second fitting convex section.   
     
     
         9 . A water spout unit of an automatic faucet comprising:
 a water spout member that is provided inside a tip section of a water spout pipe and forms a water spout;   a light projection section having a first optical fiber that guides light from a light emitting element;   a light receiving section having a second optical fiber that guides a reflected light from a detection target to a light receiving element; and   a cover that covers the water spout member,   wherein the first optical fiber has a first fitting convex section, and the second optical fiber has a second fitting convex section,   wherein the water spout member has a first fitting concave section fitted to the first fitting convex section and a second fitting concave section fitted to the second fitting convex section, and   wherein the first optical fiber and the second optical fiber are fixed by the water spout member and the cover.