JP2016141962A - Water discharge device and sensor member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water discharge device capable of obtaining proper workability even in the case where a finger can hardly be put into a water discharge pipe, when a sensor member can be loaded into/unloaded from the water discharge pipe.SOLUTION: A water discharge device includes a water discharge pipe 36 that has a window part 110 formed on the depth side with respect to a tip opening 37, and a sensor member 18 that is arranged within the water discharge pipe 36 to detect the presence or absence of an object to be detected on the outside of the window part 110. The sensor member 18 has a tool hook part 154 that is provided on the depth side with respect to the window part 110, in an outside surface part on the side facing the window part 110.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a water discharge device having a water discharge pipe and a sensor member used therefor.

  2. Description of the Related Art Conventionally, automatic faucets that can automatically switch the presence or absence of water discharge using a sensor are widely known. In general, a photoelectric sensor is used for this sensor. The photoelectric sensor projects the detection light from the light emitting element and receives the detection light reflected from the detection object by the light receiving element, thereby detecting the presence or absence of the detection object in a predetermined detection area.

  With this type of automatic faucet, if there is a detection area at the water discharge destination from the water discharge pipe, the presence or absence of water discharge can be switched unintentionally when washing dishes using the water discharge flow, making it easy to use. May be bad.

  As a countermeasure against this, an automatic faucet is proposed in which a window is provided in the water discharge pipe in addition to the tip opening through which the water discharge flows, and a sensor member is disposed in the water discharge pipe and the detection light passing through the window is projected from the sensor member. (See Patent Document 1). Thereby, since the detection area is provided outside the window portion rather than the water discharge destination from the water discharge pipe, erroneous detection during work using the water discharge flow can be suppressed.

Japanese Patent No. 5247392

  Here, since a discharge member incorporating a rectifying network or the like for rectifying the water discharge flow is usually disposed at the tip of the water discharge pipe, it is difficult to secure a space for disposing other members. For this reason, a sensor member is often arrange | positioned in the position deeper than the front-end | tip opening part of the water discharge pipe. Due to this, there is a problem that workability when the sensor member is taken out or put into the water discharge pipe (hereinafter collectively referred to as “pull out”) is deteriorated.

  For example, when maintaining the sensor member, the existing sensor member is extracted from the tip opening of the water discharge pipe, inspected, and the existing or new sensor member is inserted into the water discharge pipe from the tip opening. At this time, when the inner diameter of the water discharge pipe is excessively small, it becomes difficult to put a finger into the water discharge pipe from the tip opening, and it becomes difficult to move the sensor member with the finger touched.

  In the structure of Patent Document 1, a protrusion is provided on the side surface of the sensor member, and the protrusion is fitted in the window of the water discharge pipe. Therefore, when taking out a sensor member from the inside of a water discharging pipe, it is also considered that the sensor member is moved to the tip end side of the water discharging pipe by hooking a finger inserted from the window portion into the water discharging pipe to the protruding portion. However, if the length from the tip opening of the water discharge pipe to the window is excessively long, the sensor member protrudes from the tip opening of the water discharge pipe when the protrusion of the sensor member moves to a position where it is not exposed from the window. There are no cases. At this time, since it becomes difficult to move the sensor member in the water discharge pipe further to the distal end side, improvement thereof is desired.

  The present invention has been made in view of such a problem, and an object thereof is to provide a water discharge device capable of obtaining good workability even when it is difficult to put a finger into the water discharge tube when the sensor member is taken in and out of the water discharge tube. There is to do.

In order to solve the above-described problem, a water discharge device according to an aspect of the present invention includes a water discharge pipe having a window portion formed on the back side from a tip opening portion, and an object to be detected outside the window portion, which is disposed in the water discharge pipe. A sensor member for detecting the presence or absence of the sensor, and the sensor member has a tool hook portion provided on the outer side of the water discharge pipe from the window portion on the outer surface portion facing the window portion.
According to this aspect, since the tool hooking portion of the sensor member is arranged on the back side from the window portion of the water discharge pipe, when the sensor member is taken in and out of the water discharge pipe from the tip opening portion, the tool hooking portion is removed from the window portion. Exposed. Therefore, for example, even when the inner diameter of the water discharge pipe is small and it is difficult to put a finger into the water discharge pipe from the tip opening, the sensor member in the water discharge pipe can be easily obtained by hooking the tool arranged through the window in the water discharge pipe to the tool hook. It becomes possible to move it easily and workability is improved.

In the above-described aspect, the tool hooking portion can engage the tool from the back side to the back side of the water discharge pipe, and the first engagement portion that can engage the tool from the front side to the back side of the water discharge pipe. And a second engaging portion.
According to this aspect, the sensor member in the water discharge pipe can be moved to both sides in the pipe axis direction by hooking the tool to each of the engaging portions. Therefore, it is possible to cope with either when the sensor member is extracted from the water discharge pipe or when the sensor member is inserted into the water discharge pipe, and the workability is further improved.

In the above-described aspect, the tool hanging portion may be a recess formed in the outer surface portion.
According to this aspect, when the sensor member is disposed in the water discharge pipe, it is easy to suppress interference with other members such as the inner peripheral surface of the water discharge pipe.

In the above-described aspect, the tool hook portion may have a pair of lateral side engaging portions capable of engaging the tool toward both sides in the circumferential direction of the water discharge pipe.
According to this aspect, when the tip portion of the tool is arranged in the tool hook portion, the position of the tool relative to the sensor member in the circumferential direction of the water discharge pipe is stabilized by the engagement of each lateral side engaging portion and the tool. Can be positioned. Therefore, in a state where the position of the tool is stabilized, the work can be performed by hooking the tool on the tool hook portion toward the tip side or the back side of the water discharge pipe, and the workability is further improved.

  The sensor member according to another aspect of the present invention is disposed in a water discharge pipe having a tip opening and a window formed on the back side of the tip opening, and detects the presence or absence of an object to be detected outside the window. A tool member that is provided on the back side of the window portion on the outer surface portion facing the window portion.

  According to the present invention, when the sensor member is taken in and out of the water discharge pipe, good workability can be obtained even when it is difficult to put a finger into the water discharge pipe.

It is the schematic of the kitchen unit in which the water discharging apparatus which concerns on this embodiment is used. It is a lineblock diagram showing roughly the whole water discharging apparatus composition concerning this embodiment. It is a fragmentary sectional view which shows the whole tubular body which concerns on this embodiment with a surrounding structure. It is a fragmentary sectional view which shows a part near the front-end | tip part of the water discharging pipe which concerns on this embodiment with a surrounding structure. It is the sectional view on the AA line of FIG. 6A is a perspective view of the sensor member viewed from the direction Fv1 in FIG. 5, and FIG. 6B is a perspective view of the sensor member viewed from the direction Fv2 in FIG. 7A is a perspective view of the sensor holder as viewed from the direction Fv1 in FIG. 5, and FIG. 7B is a perspective view of the sensor holder as viewed from the direction Fv2 in FIG. It is the BB sectional view taken on the line of FIG. It is a top view which shows a part of outer side surface part of the sensor member which concerns on this embodiment. It is CC sectional view taken on the line of FIG. It is a figure which shows the outer side case in the DD sectional view of FIG. FIG. 12A is a cross-sectional view showing a state in which the tip end portion of the tool is engaged with the first engagement portion of the tool hook portion according to the present embodiment, and FIG. 12B is a second view of the tool hook portion. It is sectional drawing which shows the state which engaged the front-end | tip part of the tool with the engaging part. It is a top view which shows the state which made the front-end | tip part of a tool engage with the 1st engaging part of the tool hanging part which concerns on this embodiment. It is sectional drawing which shows the state in the middle of removing a sensor member from the water discharge pipe which concerns on this embodiment. It is other sectional drawing which shows the state in the middle of removing the sensor member from the water discharge pipe which concerns on this embodiment. It is other sectional drawing which shows the state in the middle of removing a sensor member from the water discharge pipe which concerns on this embodiment. It is side surface sectional drawing which shows the tool hook part which concerns on a modification.

  Hereinafter, in the embodiment and the modification, the same reference numerals are given to the same components, and the duplicate description is omitted. Moreover, in each drawing, a part of component is abbreviate | omitted suitably for convenience of explanation.

  FIG. 1 is a schematic view of a kitchen unit 100 in which a water discharge device 10 according to this embodiment is used. The kitchen unit 100 includes a sink 102 provided at a part of the counter. The sink 102 is provided with a seating portion 104 at a position having a step with respect to the top surface of the counter. The seat 104 is provided with an automatic faucet 106 having a temperature adjustment function on the left side when viewed from the front, and a water discharge device 10 for supplying purified water on the right side.

  FIG. 2 is a configuration diagram schematically showing the overall configuration of the water discharge device 10. The water discharge device 10 functions as an automatic faucet, and includes a tubular body 12 attached to a sink 102 (not shown in the figure), a water supply tube 14 and a wiring cable 16 inserted into the tubular body 12, and a tubular body 12. And a sensor member 18 to be attached. Details of the tubular body 12 and the sensor member 18 will be described later.

  The water supply tube 14 is connected to a water supply pipe 22 such as a rubber hose through a pipe joint 20, and is connected to a water supply source such as a water supply through the water supply pipe 22. A water purifier 24, a solenoid valve 26, and a stop cock 28 are installed in the water supply pipe 22. The water purifier 24 purifies the raw water sent from the upstream side through a filter and sends it to the downstream side as purified water. The electromagnetic valve 26 is closed or opened based on a control signal output from the sensor member 18 to switch presence / absence of water supply to the water supply tube 14.

  The wiring cable 16 is a bundle of a power cable 30 and a signal cable 32. The power cable 30 connects the sensor member 18 and the power adapter 34. Electric power is supplied to the sensor member 18 from an external power source through the power adapter 34 and the power cable 30. The signal cable 32 connects the sensor member 18 and the electromagnetic valve 26. Between these, a control signal is sent through the signal cable 32.

  FIG. 3 is a partial cross-sectional view showing the entire tubular body 12 together with the surrounding structure. The tubular body 12 is attached in a state where the proximal end portion 12 a is inserted into an attachment hole 102 a formed in the sink 102 and stands up with respect to the sink 102. The tubular body 12 includes a water discharge pipe 36 provided with a distal end opening 37 on the distal end side, and a support member 38 connected to a proximal end portion 36 a of the water discharge pipe 36. The support member 38 rotatably supports the water discharge pipe 36 with respect to the sink 102. A fixing nut 58 is screwed to the support member 38 in an insertion portion 52 that is inserted into the mounting hole 102a. The support member 38 is fixed to the sink 102 by sandwiching the washer 60 together with the sink 102 with the fixing nut 58.

  The water discharge pipe 36 has a straight portion 40 that extends linearly upward from the sink 102 and a bent portion 42 that is connected to the tip of the straight portion 40. The bent portion 42 has a shape curved in an inverted U shape so as to be folded downward from the upper side toward the distal end side, and the water discharge pipe 36 is formed in a so-called gooseneck shape.

FIG. 4 is a partial cross-sectional view showing a part near the tip of the water discharge pipe 36 together with the surrounding structure.
In addition to the tip opening 37, the water discharge pipe 36 has a window 110 formed on the back side from the tip opening 37. The water flow which becomes a water discharge flow passes through the tip opening 37. The tip opening 37 passes when a sensor member 18, a sensor holder 44, and a discharge member 46, which will be described later, are taken in and out of the water discharge pipe 36. The window part 110 is formed in a rectangular shape that is long in the tube axis direction. From the window part 110, the protrusion part 120 of the sensor member 18 mentioned later is exposed.

  The sensor member 18 is disposed in the bent portion 42 of the water discharge pipe 36. The sensor member 18 is an infrared photoelectric sensor and detects the presence or absence of an object to be detected in the vicinity of the outside of the window part 110.

5 is a cross-sectional view taken along line AA in FIG. 6A is a perspective view of the sensor member 18 viewed from the direction Fv1 in FIG. 5, and FIG. 6B is a perspective view of the sensor member 18 viewed from the direction Fv2 in FIG.
As shown in FIGS. 4 to 6, the sensor member 18 has an elongated shape that is long in the tube axis direction, and has a shape that bends according to the curvature of the bending portion 42 of the water discharge tube 36. As shown in FIGS. 5 and 6, the sensor member 18 has an outer surface portion 112 provided on the side facing the window portion 110 of the water discharge pipe 36 and an inner surface portion 114 provided on the opposite side of the outer surface portion 112. The outer side surface portion 112 is formed in an arc shape that curves in the circumferential direction along the inner peripheral surface of the water discharge pipe 36 in a cross section orthogonal to the tube axis direction of the water discharge pipe 36 (hereinafter simply referred to as the cross section of the water discharge pipe 36). Is done.

  The sensor member 18 has a protruding part 120 exposed from the window part 110 of the water discharge pipe 36. The protruding portion 120 protrudes from the outer surface portion 112 of the sensor member 18 toward the outside of the window portion 110. The protruding portion 120 has a rectangular shape that is long in the tube axis direction, like the window portion 110, and can be fitted into the window portion 110. The sensor member 18 is positioned in the circumferential direction together with the pipe axis direction of the water discharge pipe 36 by fitting the protruding part 120 into the window part 110. The outer surface 120 a of the protruding portion 120 facing the outside of the window portion 110 is provided so as to be flush with the outer peripheral surface of the water discharge pipe 36.

  The sensor member 18 has a sensor case 122 serving as an outer shell. The sensor case 122 is configured by assembling an outer case 124 provided on the side of the water discharge pipe 36 facing the window 110 and an inner case 126 provided on the opposite side of the outer case 124.

  As shown in FIG. 4, the sensor member 18 houses sensor elements such as a light emitting element 128 and a light receiving element 130, a circuit board 132 on which a microcomputer is mounted, and the like. The light emitting element 128 projects detection light (infrared light) upward through the window part 110 of the water discharge pipe 36 and the outer surface 120a of the protruding part 120. The detection light reflected from the object to be detected enters the sensor member 18 through the window 110 of the water discharge pipe 36 and the outer surface 120a of the protrusion 120 and is received by the light receiving element 130. The circuit board 132 on which the microcomputer is mounted serves as a control unit that performs detection processing for detecting the presence or absence of an object to be detected in the vicinity of the window 110 based on the amount of light received by the light receiving element 130. The control unit outputs a control signal corresponding to the detection result to the electromagnetic valve 26 (see FIG. 2) through the wiring cable 16.

  The water discharge device 10 is further provided with a sensor holder 44 that is disposed in the water discharge pipe 36 and holds the position of the sensor member 18 in the water discharge pipe 36 by supporting the sensor member 18 from below.

7A is a perspective view of the sensor holder 44 viewed from the direction Fv1 in FIG. 5, and FIG. 7B is a perspective view of the sensor holder 44 viewed from the direction Fv2 in FIG.
As shown in FIGS. 5 and 7, the sensor holder 44 is long and long in the tube axis direction. The sensor holder 44 includes a contact surface portion 134 that contacts the inner surface portion 114 of the sensor member 18 from below, and a leg portion 136 that extends from the contact surface portion 134 toward the lower side opposite to the sensor member 18. The contact surface portion 134 and the leg portion 136 have a shape that bends according to the curvature of the bent portion 42 of the water discharge pipe 36. The contact surface portion 134 is formed in a plate shape extending so as to cross the inside of the water discharge pipe 36 along one direction in the cross section of the water discharge pipe 36. The front end portion 136 a of the leg portion 136 extends in the circumferential direction so as to be in surface contact with the inner peripheral surface of the water discharge pipe 36 in the cross section of the water discharge pipe 36.

  The sensor holder 44 is positioned in the circumferential direction and the radial direction in the water discharge pipe 36 by contact between the contact surface portion 134 and the leg portion 136 and the water discharge tube 36 or contact between the contact surface portion 134 and the sensor member 18.

  Further, as shown in FIGS. 4 and 7, the sensor holder 44 has a stepped portion 138 connected to the distal end portion of the contact surface portion 134. The step portion 138 is formed to extend radially outward from the distal end portion of the contact surface portion 134. The sensor member 18 is positioned in the tube axis direction by engagement with the step portion 138 of the sensor holder 44.

  As shown in FIG. 5, when the sensor holder 44 is arranged in the water discharge pipe 36, the water discharge pipe 36 is partitioned into a sensor space 140 and a tube space 142 by the contact surface portion 134 and the leg portion 136. The sensor space 140 is provided on the side facing the window portion 110 with respect to the contact surface portion 134, and the sensor member 18 is housed inside the sensor space 140. The tube space 142 is provided on the opposite side of the sensor space 140 with the abutment surface portion 134 interposed therebetween, and the water supply tube 14 is inserted inside the tube space 142.

8 is a cross-sectional view taken along line BB in FIG.
As shown in FIGS. 7B and 8, the sensor holder 44 is provided with a sandwiched portion 144 for gripping with a clamping tool such as pliers when the sensor holder 44 in the water discharge pipe 36 is moved. . The to-be-clamped part 144 is arrange | positioned between the discharge member 46 mentioned later and the water discharge pipe 36, and is formed in the plate shape extended in a pipe-axis direction. A gap 148 is formed between the inner peripheral surface of the water discharge pipe 36 and the sandwiched portion 144. A part of the clamping tool is inserted into the gap 148 from the tip opening 37. The sandwiched portion 144 is provided with a gap holding portion 146 as a protrusion at a position facing the inner peripheral surface of the water discharge pipe 36. Thereby, even when the sensor holder 44 is displaced in the water discharge pipe 36, the gap 148 is secured by the contact between the water discharge pipe 36 and the interval holding portion 146.

  The water discharging apparatus 10 is further provided with the discharge member 46 connected to the front-end | tip part of the water supply tube 14, as shown in FIG. The discharge member 46 is formed in a cylindrical shape as a whole. A water discharge port 46a is provided at the distal end side of the discharge member 46. When water is supplied from the water supply tube 14, water is discharged from the water discharge port 46a. The discharge member 46 includes a rectifying member 150 for rectifying water passing therethrough. The rectifying member 150 is a watering plate, a rectifying network, or the like. The discharge member 46 has a cylindrical insertion portion 46 b that is inserted into the water supply tube 14. The discharge member 46 is connected to the water supply tube 14 by tightening the insertion portion 46b together with the water supply tube 14 with a band-shaped tightening member 152. The discharge member 46 is fixed to the water discharge pipe 36 by screwing the fixture 48 to the discharge member 46 using a fixture 48 such as a screw.

FIG. 9 is a top view showing a part of the outer surface portion 112 of the sensor member 18.
As shown in FIGS. 4, 6 (a), and 9, the sensor member 18 has a tool hooking portion 154 provided on the outer side surface portion 112 on the back side of the water discharge pipe 36 from the window portion 110. As will be described later, the tool hooking portion 154 is provided for hooking the tip of a tool such as a flat-blade screwdriver when the position of the sensor member 18 in the water discharge pipe 36 is shifted. As shown in FIG. 9, the tool hook portion 154 is located on the extended line L <b> 1 extending along the tube axis direction so as to pass through the protruding portion 120 in the outer surface portion 112 of the sensor member 18. The tool hooking portion 154 is provided on the distal end side of the water discharge pipe 36 from the back end portion of the sensor member 18 facing the back side of the water discharge pipe 36.

  10 is a cross-sectional view taken along the line CC of FIG. 9, and FIG. 11 is a cross-sectional view of the outer case 124 taken along the line DD of FIG. 9 and 10, the tip side and the back side of the water discharge pipe 36 are indicated by reference characters T <b> 1 and T <b> 2 with an underbar. The same applies to the following.

  The tool hanging portion 154 is a recess formed in the outer surface portion 112 of the sensor member 18. As shown in FIGS. 9 and 10, the tool hooking portion 154 includes a bottom surface portion 154a, a first engagement portion 154b rising from the edge portion on the tip side T1 of the bottom surface portion 154a, and an edge on the back side T2 of the bottom surface portion 154a. A second engaging portion 154c rising from the portion. Further, as shown in FIGS. 9 and 11, the tool hooking portion 154 has a pair of lateral side engaging portions 154d that rises from edges on both sides in the circumferential direction of the bottom surface portion 154a. Each engaging part 154b-154d becomes a flat surface part which stands | starts up from the bottom face part 154a.

  As shown to Fig.12 (a), the front-end | tip part of the tool 156 can be engaged with the 1st engaging part 154b toward the front end side T1 from the back | inner side T2 of the water discharge pipe 36. FIG. Thereby, it becomes easy to move the sensor member 18 toward the distal end side T <b> 1 of the water discharge pipe 36 using the tool 156.

  As shown in FIG. 12B, the distal end portion of the tool 156 can be engaged with the second engagement portion 154 c from the distal end side T <b> 1 of the water discharge pipe 36 toward the rear side T <b> 2. Thereby, it becomes easy to move the sensor member 18 toward the back side T <b> 2 of the water discharge pipe 36 using the tool 156.

  Even when the tool 156 is displaced in the circumferential direction of the water discharge pipe 36 when the tip of the tool 156 is disposed in the tool hook 154 as shown in FIG. The distal end portion of the tool 156 can be engaged with each of the both sides in the circumferential direction of the water discharge pipe 36. Thereby, the position of the tool 156 with respect to the sensor member 18 in the circumferential direction of the water discharge pipe 36 can be stabilized by the engagement of each lateral side engaging portion 154 d and the tool 156. Therefore, in a state where the position of the tool 156 is stabilized, it is possible to work by hooking the tip end portion of the tool 156 to the first engagement portion 154b or the second engagement portion 154c.

  As shown in FIG. 10, between each of the first engaging portion 154b and the second engaging portion 154c and the bottom surface portion 154a adjacent to the inside in the radial direction, each engaging portion 154b, 154c with respect to the bottom surface portion 154a. Is preferably in a range of 110 ° or less, for example. If the angle exceeds 110 °, the tool 156 may not be easily caught when the tip of the tool 156 is engaged with the engaging portions 154b and 154c. The lower limit value of the angle θ is not particularly limited in relation to the ease with which the tool 156 is hooked. However, when the angle θ is less than 90 °, when the sensor case 122 of the sensor member 18 is injection-molded using a mold, it becomes difficult to obtain a good die-cutting property. Good. These findings are obtained by the study of the present inventors.

Next, a method for removing the sensor member 18 from the water discharge pipe 36 will be described.
First, the fixing tool 48 (see FIG. 4) is removed from the discharge member 46, and the fixation of the discharge member 46 to the water discharge pipe 36 is released. Thereafter, as shown in FIG. 14, the discharge member 46 (see FIG. 4) is extracted from the tip opening 37 of the water discharge pipe 36 together with the water supply tube 14. At this time, only a part of the water supply tube 14 is pulled out from the tip opening 37 and is left inserted into the water discharge pipe 36.

  Next, the sensor holder 44 (see FIG. 4) is extracted from the tip opening 37 of the water discharge pipe 36. At this time, the sensor holder 44 is extracted in a state where the sandwiched portion 144 (see FIG. 8) of the sensor holder 44 is gripped by the sandwiching tool.

  Next, the sensor member 18 is extracted from the tip opening 37 of the water discharge pipe 36. At this time, first, the protruding portion 120 of the sensor member 18 is pushed inward from the outside of the window portion 110 of the water discharge pipe 36 with a finger or the like, and the fitting of the sensor member 18 in the window portion 110 is released. Thereafter, the sensor member 18 is displaced toward the distal end side of the water discharge pipe 36 while, for example, a finger inserted inside the window 110 of the water discharge pipe 36 is hooked on the protrusion 120 of the sensor member 18. At this time, it is preferable to work without hooking the tool 156 to the protrusion 120 of the sensor member 18. This is because the protrusion 120 can be prevented from being damaged by contact with the tool 156, and the appearance can be prevented from being lowered when the protrusion 120 appears to be exposed from the window 110.

  As shown in FIG. 15, when the sensor member 18 is displaced from the window portion 110 of the water discharge pipe 36 until the tool hook portion 154 of the sensor member 18 is exposed, the tool 156 is moved to the first engagement portion 154 b of the tool hook portion 154. Engage the tip. The distal end portion of the tool 156 is placed inward from the window portion 110 of the water discharge pipe 36 and is disposed so as to be engaged with the first engagement portion 154 b from the back side of the water discharge pipe 36. In this state, the sensor member 18 is displaced toward the distal end side of the water discharge pipe 36 by displacing the tool 156 toward the distal end side of the water discharge pipe 36.

  At this time, since a part of the water supply tube 14 remains inserted into the water discharge pipe 36, the contact between the sensor member 18 and the water supply tube 14 makes it difficult for the sensor member 18 to be displaced radially inward. Become. As a result, it is possible to work using the tool hanging portion 154 while the tool hanging portion 154 is in a relatively close position with respect to the window portion 110.

  As shown in FIG. 16, when the sensor member 18 is displaced from the tip opening 37 of the water discharge pipe 36 until it protrudes, the operator grasps the protruding portion and extracts the entire sensor member 18 from the tip opening 37. Thereafter, the sensor member 18 is inspected, and the existing sensor member 18 is replaced with a new sensor member 18 as necessary.

  Next, a method for attaching the sensor member 18 to the water discharge pipe 36 will be described. Here, the case where the new sensor member 18 is attached after removing the existing sensor member 18 from the water discharge pipe 36 will be described.

  First, the sensor member 18 is inserted into the water discharge pipe 36 from the tip opening 37. The sensor member 18 is inserted from the window part 110 of the water discharge pipe 36 to a position where the protruding part 120 is exposed. At this time, the sensor member 18 may be pushed toward the back side of the water discharge pipe 36 using the tool 156. Also at this time, it is preferable that the sensor member 18 is pushed in with the tool 156 applied to another portion such as the tip of the sensor member 18 without being hooked on the protruding portion 120 of the sensor member 18.

  Moreover, when the tool hooking part 154 is exposed from the window part 110 of the water discharging pipe 36, the back side of the water discharging pipe 36 is used using the second engaging part 154c (see FIG. 12B) of the tool hooking part 154. You may push in the sensor member 18 toward. In this case, the distal end portion of the tool 156 is placed inward from the window portion 110 of the water discharge pipe 36 and is disposed so as to engage with the second engagement portion 154 c from the front end side of the water discharge pipe 36. In this state, the sensor member 18 is displaced toward the back side of the water discharge pipe 36 by displacing the tool 156 toward the back side of the water discharge pipe 36.

  When the sensor member 18 is inserted to the position where the protruding portion 120 is exposed, the sensor holder 44 is inserted into the water discharge pipe 36 from the tip opening 37. At this time, due to the insertion of the sensor holder 44, the contact surface portion 134 of the sensor holder 44 contacts the inner side surface portion 114 of the sensor member 18. In this state, by further pushing the sensor holder 44 into the back side of the water discharge pipe 36, the protrusion 120 of the sensor member 18 is pushed up toward the outside of the window 110, and the position of the sensor member 18 is held by the sensor holder 44. The Thereafter, the discharge member 46 is inserted from the tip opening 37 of the water discharge pipe 36, and the discharge member 46 is fixed to the water discharge pipe 36 using the fixture 48.

  According to the water discharge device 10 described above, the tool hook portion 154 is provided on the back side of the window portion 110 of the water discharge pipe 36, so that when the sensor member 18 is taken in and out of the water discharge pipe 36 from the tip opening 37, the window portion The tool hook 154 is exposed from 110. Therefore, for example, even when the inner diameter of the water discharge pipe 36 is small and it is difficult to put a finger into the water discharge pipe 36 from the tip opening 37, the tool 156 disposed through the window 110 in the water discharge pipe 36 is hooked on the tool hook 154. Thus, the sensor member 18 in the water discharge pipe 36 can be easily moved, and the workability is improved.

  Moreover, the tool hooking part 154 has the 1st engaging part 154b and the 2nd engaging part 154c. Therefore, the sensor member 18 in the water discharge pipe 36 can be moved to both sides in the pipe axis direction by hooking the tool 156 on each of the engaging portions 154b and 154c. Therefore, it is possible to cope with either when the sensor member 18 in the water discharge pipe 36 is extracted or when the sensor member 18 is inserted into the water discharge pipe 36, and the workability is further improved.

  Further, since the tool hooking portion 154 is a concave portion, when the sensor member 18 is disposed in the water discharge pipe 36, it is easy to suppress interference with other members such as the inner peripheral surface of the water discharge pipe 36. Therefore, in providing the tool hook portion 154, it is not necessary to increase the size of the water discharge pipe 36 or the like in order to suppress interference with other members.

  In addition, when the length La (see FIG. 14) from the tip opening 37 of the water discharge pipe 36 to the tip end of the window 110 is excessively long, as shown in FIG. The sensor member 18 may not protrude from the distal end opening 37 of the water discharge pipe 36 when it is displaced from the window 110 of the water discharge pipe 36 to a position that is hidden without being exposed (hereinafter referred to as a reference position). At this time, if the sensor member 18 does not have the tool hook portion 154, the sensor member 18 does not have a portion where the tool 156 or the like can be hooked in the range exposed from the window portion 110, and there is no portion where the sensor member 18 can be gripped. It becomes very difficult to move the sensor member 18 in the water discharge pipe 36.

  In this regard, according to this embodiment, since the tool member 154 is provided on the sensor member 18, the position of the tool holder 154 is determined so as to be exposed from the window 110 even when the sensor member 18 is at the reference position. If so, the sensor member 18 in the water discharge pipe 36 can be easily moved using the tool hook 154. In order to satisfy such a condition, as shown in FIG. 14, the length along the tube axis direction from the tip end portion to the back end portion of the projecting portion 120 is Lb, and the tool hook is placed from the back end portion of the projecting portion 120. When the length along the tube axis direction to the tip of the portion 154 is Lc, the length Lc may be determined to be equal to or less than the length Lb.

Hereinafter, other features of the water discharge device 10 will be described.
As shown in FIGS. 9 to 11, the tool hooking portion 154 of the sensor member 18 is a recess formed in the outer surface portion 112 of the sensor member 18, and is complementary to the recess on the back side of the outer surface portion 112 in the sensor member 18. A convex portion 158 having a shape is formed. Here, the sensor member 18 has a rib 160 connected to the tool hook portion 154 on the back side of the tool hook portion 154 in order to reinforce the tool hook portion 154. The rib 160 is formed in a plate shape extending from the back surface of the tool hook portion 154 and is provided so as to extend along one direction in the cross section of the water discharge pipe 36. Thereby, when the tool 156 is hooked on the tool hook 154, it is easy to ensure the strength against the load applied from the tool 156 to the tool hook 154. The rib 160 only needs to be connected to the back side of the tool hook 154, and the shape thereof is not particularly limited, and may be provided so as to extend along the tube axis direction.

  As mentioned above, although this invention was demonstrated based on embodiment, embodiment only shows the principle and application of this invention. In the embodiment, many modifications and arrangements can be made without departing from the spirit of the present invention defined in the claims.

  The water discharge device 10 may be used for facilities installed in buildings, ships, and the like, and may be used for a washstand, a hand-washer, a bathroom, and the like in addition to a kitchen. Moreover, the sink 102 was illustrated as a base | substrate to which the tubular body 12 is attached. The base is exemplified by a counter in a kitchen or a washstand, but also includes a wall member that divides the outside of equipment such as a kitchen.

  Although the sensor member 18 has been described by taking a photoelectric sensor as an example, any sensor other than the photoelectric sensor may be used as long as it can detect the presence or absence of an object to be detected outside the window portion 110. For example, the sensor member 18 may be a capacitive proximity sensor or the like. Further, the protruding portion 120 may not be provided on the outer surface portion 112 of the sensor member 18.

  The water discharge pipe 36 is not particularly limited with respect to the length La (see FIG. 14) from the tip opening 37 to the tip of the window 110, and may be much smaller or longer than the illustrated example. Further, although the water discharge pipe 36 has been described as an example in which the inner diameter is small and it is difficult to insert a finger from the tip opening 37, the size is not particularly limited, and the inner diameter may be sufficiently large. Further, the example in which the water discharge pipe 36 is formed in a gooseneck shape has been described. However, the water discharge pipe 36 may be formed in a straight line shape or a shape in which the bent portion 42 is bent at a right angle or the like.

  The tool 156 to be hooked on the tool hook portion 154 includes an elongated body having a size through which the window portion 110 can pass, in addition to a general tool such as a flat-blade screwdriver. The elongated body here is, for example, a coin, a ballpoint pen, or the like. In addition to the tool 156, the operator's finger may be hooked on the tool hook 154.

FIG. 17 is a side cross-sectional view showing a tool hook 154 according to a modification.
In the example of FIG. 10, the tool hooking portion 154 has been described by taking the concave portion formed in the sensor member 18 as an example. As shown in FIG. 17, the tool hook 154 may be a convex portion formed on the sensor member 18. In this case, the tool hooking portion 154 hangs down from the top surface portion 154e, the first engaging portion 154b hanging from the edge of the top surface portion 154e on the back side in the tube axis direction, and the edge of the top surface portion 154e on the tip side T1. And a second engaging portion 154c. In this example, the tip end portion of the tool 156 can be engaged with the first engagement portion 154b provided on the back side T2 of the tool hook portion 154 from the back side T2 of the water discharge pipe 36 toward the tip side T1. Further, the distal end portion of the tool 156 can be engaged with the second engagement portion 154c provided on the distal end side T1 of the tool hook portion 154 from the distal end side T1 of the water discharge pipe 36 toward the rear side T2. Each engaging part 154b, c is provided so as to rise from the surface part 18a of the sensor member 18 adjacent to the radially inner side of the water discharge pipe 36. Even in this case, by using the tool hooking portion 154, the sensor member 18 in the water discharge pipe 36 can be easily moved.

  Moreover, although each engaging part 154b-d of the tool hook part 154 demonstrated in the example of FIG. 10, FIG. 17 demonstrated to the example which is a surface part which rises from the surface part adjacent to the radial inside of the water discharge pipe 36, it is protrusion. Etc.

DESCRIPTION OF SYMBOLS 10 ... Water discharging apparatus, 18 ... Sensor member, 36 ... Water discharging pipe, 37 ... Tip opening part, 110 ... Window part, 112 ... Outer surface part, 154 ... Tool hook part, 154b ... 1st engaging part, 154c ... 2nd engagement Joint part, 154d ... lateral side engaging part, 156 ... tool, 160 ... rib.

Claims (5)

A water discharge pipe having a window formed on the back side from the tip opening,
A sensor member that is disposed in the water discharge pipe and detects the presence or absence of an object to be detected outside the window,
The water discharge device according to claim 1, wherein the sensor member has a tool hook portion provided on the back side of the water discharge pipe from the window portion on the outer surface portion facing the window portion. The tool hook is
A first engagement portion capable of engaging a tool from the back side to the tip side of the water discharge pipe;
The water discharging apparatus according to claim 1, further comprising: a second engaging portion capable of engaging a tool from the distal end side to the rear side of the water discharging pipe.   The water discharge device according to claim 1, wherein the tool hooking portion is a recess formed in the outer surface portion.   The water discharge device according to claim 3, wherein the tool hook portion has a pair of lateral side engaging portions that can engage a tool toward each of both circumferential sides of the water discharge pipe. A sensor member for detecting the presence or absence of an object to be detected outside the window part, which is disposed in a water discharge pipe having a tip opening part and a window part formed on the back side from the tip opening part,
A sensor member comprising a tool hook provided on the outer surface of the water discharge pipe on the outer side surface facing the window.

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