JP2015113601A - Water discharge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water discharge device capable of having higher designability.SOLUTION: A water discharge device 10 includes: a water discharge pipe 20 having an opening part 21 atop; a plurality of internal components 15 which are inserted from the opening part 21 and arranged in the water discharge pipe 20; and an engaged part 35 which is formed on an inner surface of the water discharge pipe 20. The plurality of internal components 15 each include: a water discharge port member 40; a sensor member 60 which is arranged between an inner peripheral surface 20d of the water discharge pipe 20 and the water discharge port member 40; and a fixture 80 which is arranged closer to a tip side of the water discharge pipe 20 than the sensor member 60. A projection part 51 provided at the water discharge member 40 and an elastic claw 85 provided at the fixture 80 engage the engaged part 35, and the fixture 80 and sensor member 60 engage each other so as to hold the plurality of internal components 15 in the water discharge pipe 20.

Description

  The present invention relates to a water discharge device used for an automatic faucet or the like.

  Automatic faucets are widely used in kitchens and washstands. As the automatic faucet, a water discharge device including a water discharge pipe, a sensor member disposed in the water discharge pipe, and a water discharge port member is used. In this water discharging apparatus, when an object to be detected such as a human hand is detected by the sensor member, control is performed so that water is discharged from the water outlet of the water outlet member.

  The water outlet member and the sensor member are usually fixed in the water discharge pipe using screws. In Patent Document 1, a sensor member and a water discharge port member are combined and inserted into a water discharge pipe, a screw is disposed so as to penetrate the outer peripheral wall of the water discharge pipe, and the sensor member and water discharge port member are connected to the water discharge pipe by the screw. It is fixed to.

JP 2002-070096 A

  In the structure of Patent Document 1, a screw appears to be exposed on the outer peripheral wall of the water discharge pipe. This inventor came to recognize that there exists room for improvement about the structure of a water discharging apparatus, in order to implement | achieve higher designability.

  This invention is made | formed in view of such a subject, The objective is to provide the water discharging apparatus which can implement | achieve higher designability.

  In order to solve the above-described problem, an aspect of the present invention relates to a water discharge device. The water discharge device includes a water discharge pipe having an opening at the tip, a plurality of inner parts disposed in the water discharge pipe and inserted from the opening, and an engaged portion formed on the inner surface of the water discharge pipe. The inner part includes a first inner part, and a second inner part disposed between the inner peripheral surface of the water discharge pipe and the first inner part, and is provided in any of the plurality of inner parts. A plurality of inner parts are held in the water discharge pipe by engaging the stop part and the engaged part, and engaging the inner part provided with the locking part with the other inner part. . The “other inner part” includes an inner part in which a locking part is provided, in addition to an inner part in which a locking part is not provided.

  According to this aspect, in order to hold a plurality of inner parts in the water discharge pipe, the engagement between the engaged part formed on the inner surface of the water discharge pipe and the engaging part of the inner part is utilized, Screws or the like are not exposed on the outer peripheral wall, the appearance of the water discharge pipe is clean, and the design is good.

Moreover, the above-mentioned aspect WHEREIN: As for the water discharge pipe, the circumferential groove part extended in a pipe circumferential direction is formed in the internal peripheral surface, and a to-be-engaged part may be formed by a circumferential groove part. According to this aspect, the peripheral groove portion as the engaged portion can be easily formed by cutting or the like, and the productivity becomes better than forming the convex portion such as a protrusion as the engaged portion.
Further, in this aspect, the water discharge pipe is formed with an axial groove portion extending in the tube axis direction from the distal end side to the circumferential groove portion on the inner peripheral surface thereof, and the locking portion is provided in the first inner part, and the first through the opening portion. When inserting 1 inner part, a 1st inner part may be arrange | positioned in the holding | maintenance position which should be hold | maintained in a water discharge pipe | tube by moving a latching | locking part inside a shaft groove part and a circumferential groove part. According to this aspect, the first inner part can be arranged at the holding position by moving the engaging part of the first inner part through the shaft groove part or the circumferential groove part of the water discharge pipe, and the workability at the time of the work becomes good. .

  Further, in the above aspect, the plurality of inner parts further include a fixing tool provided with a locking portion, and the fixing tool is held in the water discharge pipe by engagement of the locking portion and the engaged portion, This may be held in the water discharge pipe by engagement with at least one of the first inner part or the second inner part. According to this aspect, at least one of the first inner part or the second inner part can be held in the water discharge pipe by the fixture.

  Moreover, in the above-mentioned aspect, when the inner part is inserted from the opening, the locking part may be an elastic claw disposed at a position that can be engaged with the engaged part by snap fitting. According to this aspect, when inserting an inner part from the opening part of a water discharge pipe, the latching | locking part of an inner part can be easily arrange | positioned by the snap fit in the position which can be engaged with the to-be-engaged part of a water discharge pipe.

Further, in the above-described aspect, the first inner part and the second inner part are inserted into the pipe by inserting the second inner part from the opening of the water discharge pipe between the inner peripheral surface of the water discharge pipe and the first inner part. You may fit in a water discharge pipe so that the movement of the direction which cross | intersects an axial direction is controlled. According to this aspect, by inserting the second inner part from the opening of the water discharge pipe, it is possible to regulate the movement of the first inner part and the second inner part in the direction intersecting the tube axis direction.
Further, in this aspect, a guide surface on which the second inner part slides when the second inner part is inserted from the opening is formed at a location where the inner peripheral surface of the water discharge pipe and the first inner part face each other. May be. According to this aspect, the second inner part can be arranged in the water discharge pipe by sliding the second inner part on the guide surface of the first inner part or the water discharge pipe, and the workability during this work is improved.

  According to the present invention, the appearance of the water discharge pipe is clean and the design is good.

The block diagram of the automatic apparatus in which the water discharging apparatus which concerns on 1st Embodiment is used is shown. The expanded sectional view of the tip part of the discharging pipe concerning a 1st embodiment is shown. FIG. 3 is a sectional view taken along line AA in FIG. 2. The disassembled perspective view of a water discharging apparatus is shown. The longitudinal cross-sectional view which shows the internal structure of a water discharge pipe is shown. (A) is sectional drawing which shows roughly the state which looked at the projection part of the spout member in a water discharge pipe from the upper side of the vertical direction, (b) is the elastic nail | claw of the fixing tool in a water discharge pipe from the upper side of a vertical direction. It is sectional drawing which shows the state seen roughly. It is an expanded sectional view showing a state when inserting a spout member into a spout pipe concerning a 1st embodiment. It is an expanded sectional view showing a state when inserting a sensor member in a water discharge pipe concerning a 1st embodiment. It is an expanded sectional view which shows a state when inserting a fixing tool in the water discharge pipe which concerns on 1st Embodiment. The expanded sectional view of the tip part of the water discharge pipe concerning a 2nd embodiment is shown. It is an expanded sectional view which shows a state when inserting a water outlet member in the water discharge pipe which concerns on 2nd Embodiment.

  In the following description, for the sake of convenience, the positional relationship between the components may be expressed based on the illustrated state, but the positional relationship between the components is not limited.

[First Embodiment]
FIG. 1 shows a configuration diagram of an automatic faucet 100 in which a water discharge device 10 according to the first embodiment is used. The automatic faucet 100 includes a water discharge device 10, a solenoid valve 110, and a control unit 120. The water discharge device 10 includes a water discharge pipe 20, a water discharge port member 40, and a sensor member 60.

  As for the water discharge pipe 20, the base end part 20a is arrange | positioned at the upper surface side (one surface side) of the counter 11 (base | substrate) of a washstand. A fixing member 103 is disposed on the lower surface side of the counter 11 that is opposite to the water discharge pipe 20 with respect to the counter 11. The water discharge pipe 20 is provided with a fastened portion 25 at a base end portion 20 a thereof, and a bolt 105 is inserted into the fastened portion 25 and the fixing member 103. A fastening nut 107 is screwed into a portion of the bolt 105 protruding from the fixing member 103, and the fastening portion 25 of the water discharge pipe 20 and the fixing member 103 are fastened by tightening the fastening nut 107. The counter 11 is sandwiched between the water discharge pipe 20 and the fixing member 103, and the proximal end portion 20 a of the water discharge pipe 20 is fixed to the counter 11.

  In the present example, the water discharge pipe 20 is formed in an inverted U shape by bending its middle part, and its tip part 20b extends obliquely downward, and is formed in a so-called gooseneck shape. The water discharge pipe 20 is formed of a casting made of a metal material. As will be described later in detail, the water discharge pipe 20 is provided with a water discharge port member 40 and a sensor member 60 in the tip end portion 20b.

  The water outlet member 40 is connected to the electromagnetic valve 110 via the flexible water supply hose 13, and the water outlet 41 for discharging water is provided in the front side. The water outlet member 40 discharges water supplied from the water supply through the water supply passage 101 in the water supply hose 13 from the water outlet 41 through the inside. The sensor member 60 is connected to the control unit 120 via the flexible sensor cable 14. The water supply hose 13 and the sensor cable 14 are pulled out to the lower side of the counter 11 through the fixing member 103 together with the inside of the water discharge pipe 20.

  The electromagnetic valve 110 is installed in the middle of the water supply path 101 for supplying water to the water outlet 41 of the water outlet member 40. The solenoid valve 110 is connected to the water supply hose 13 via a joint (not shown). The electromagnetic valve 110 opens and closes the water supply channel 101 under the control of the control unit 120.

  In this example, the sensor member 60 is an infrared side distance sensor having a light emitting portion and a light receiving portion. The sensor member 60 projects light from the light emitting unit, receives light reflected from the detected object such as a human hand by the projected light by the light receiving unit, and determines a predetermined amount with respect to the water outlet 41 of the water outlet member 40. It is detected whether or not there is an object to be detected in the detection area within the range. The sensor member 60 outputs a signal indicating the detection result of the detection object to the control unit 120 via the sensor cable 14.

  In this example, the control unit 120 is configured by a circuit board on which a microcomputer is mounted. The control unit 120 controls to open and close the electromagnetic valve 110 based on the output signal from the sensor member 60, and switches whether water is supplied from the water outlet 41 of the water outlet member 40. At this time, the solenoid valve 110 is controlled so as to switch presence / absence of water supply to the water outlet 41 of the water outlet member 40 based on an output signal from the sensor member 60. The control unit 120 may be realized by combining elements and circuits including a computer CPU and memory.

  Next, the detail of the water discharging apparatus 10 is demonstrated. 2 is an enlarged vertical cross-sectional view of the distal end portion 20b of the water discharge pipe 20, FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2, and FIG. 4 is an exploded perspective view of the water discharge apparatus 10. The water discharge device 10 includes a water discharge pipe 20 and a plurality of inner parts 15 arranged in the water discharge pipe 20. The plurality of inner parts 15 include a spout member 40 (first inner part), a sensor member 60 (second inner part), and a fixture 80. The water discharge pipe 20 has a front end opening 21 at the front end, and the plurality of inner parts 15 are inserted from the front end opening 21 of the water discharge pipe 20.

  As shown in FIG. 3, the water discharge pipe 20 is formed in an elliptical shape in which the cross section from the tip opening 21 at the tip to a part in the pipe axis direction is long in the vertical direction. Hereinafter, in the cross section of the water discharge pipe 20, a direction parallel to the horizontal axis is referred to as a horizontal direction A, and a direction orthogonal to the horizontal direction is referred to as a vertical direction B.

  As shown in FIG. 2, the water discharge pipe 20 is provided with a reduced diameter portion 23 on the back side in the tube axis direction from a circumferential groove portion 31 described later. The reduced diameter portion 23 is formed with a diameter reduced from a portion 25 shifted toward the distal end side in the tube axis direction, and a stopper surface 23 a as a step surface is formed between the portion 25 and the reduced diameter portion 23.

  As shown in FIG. 3, the water discharge port member 40 is disposed in the lower portion of the inner peripheral surface 20 d of the outer peripheral wall 20 c that separates the inside and outside of the water discharge pipe 20. The sensor member 60 is disposed on the upper portion of the inner peripheral surface 20d of the water discharge pipe 20. That is, the sensor member 60 is disposed between the inner peripheral surface 20 d of the water discharge pipe 20 and the water discharge port member 40. The water outlet member 40 and the sensor member 60 are fitted in the water discharge pipe 20 so that movement in the direction (the pipe circumferential direction, the horizontal direction A, and the vertical direction B) intersecting the pipe axis direction is restricted. At this time, the water outlet member 40 and the sensor member 60 are restricted from moving in the direction intersecting the tube axis direction by engaging with each other.

  As shown in FIG. 4, the water discharge port member 40 includes a cylindrical main body portion 43 and a cylindrical insertion portion 45 protruding from the rear portion of the cylindrical main body portion 43. As shown in FIGS. 3 and 4, the cylindrical main body 43 is formed with vertical ribs 43 a and horizontal ribs 43 b on the outer peripheral surface excluding its upper surface. The vertical ribs 43a are formed along the pipe circumferential direction, and a plurality of vertical ribs 43a are provided at intervals in the pipe axis direction. The lateral ribs 43b are formed along the tube axis direction, and a plurality of the lateral ribs 43b are provided at intervals in the tube circumferential direction. The vertical ribs 43 a and the horizontal ribs 43 b are formed along the lower portion of the inner peripheral surface 20 d of the water discharge pipe 20, and the water discharge port member 40 discharges in a state where they are in contact with the inner peripheral surface 20 d of the water discharge pipe 20. It is held in the water pipe 20. In FIG. 2, the vertical ribs 43a and the horizontal ribs 43b are not shown.

  As shown in FIG. 2, the cylindrical main body 43 has a protrusion 49 protruding from its rear portion, and a diameter-enlarged portion 49 a is provided at the tip of the protrusion 49. The protrusion 49 is inserted into the buffer member 17 described later, and is prevented from being detached from the buffer member 17 by the enlarged diameter portion 49 a, and the buffer member 17 is attached to the water discharge port member 40.

  The inlet 45 a is provided with an inlet 45 a, a water outlet 41 is provided at the front of the cylindrical main body 43, and the inlet 45 a and the water outlet are provided inside the plug 45 and the cylindrical main body 43. A flow path (not shown) communicating with 41 is formed. In this example, the water discharge port member 40 is configured to be able to discharge water in the form of foam by entraining air sucked from outside through an air suction hole (not shown) into the water flow in the flow path. The insertion portion 45 is pushed into the water supply hose 13 and then tightened by the band-shaped tightening member 19 to be connected to the water supply hose 13.

  The water discharge port member 40 is arranged so that the central axis of the water discharge port 41, that is, the water discharge direction is directed to the distal end side of the water discharge pipe 20. Each part including the cylindrical main body part 43 and the insertion part 45 is integrally formed with the water outlet member 40 from a resin material.

  As shown in FIG. 4, the sensor member 60 includes a sensor main body 61 formed in a rectangular parallelepiped shape, a protrusion 63 protruding from the upper surface of the sensor main body 61, and a fitting portion protruding from the front of the sensor main body 61. 65. The fitting portion 65 is formed with a diameter smaller than that of the sensor main body portion 61, and a step surface 61 a is formed between the sensor main body portion 61 and the fitting portion 65. Each part of the sensor member 60 including the sensor body 61 and the protrusion 63 is integrally formed of a resin material. As for the sensor member 60, the sensor cable 14 is pulled out from the rear part.

  The sensor member 60 has a hollow structure, and a light emitting unit and a light receiving unit (not shown) are incorporated inside thereof. On the front surface of the sensor member 60, an incident / exit surface 60a on which light projected from the light emitting portion is emitted and light from the object to be detected enters is provided.

  As shown in FIG. 2, the sensor member 60 is disposed such that its incident / exit surface 60 a faces the distal end side of the water discharge pipe 20, and light is projected from the light emitting portion toward the distal end side of the water discharge pipe 20. That is, the water discharge direction of the water discharge port member 40 and the light projecting direction of the sensor member 60 are the same direction.

  In the water discharge port member 40 and the sensor member 60, the plate-shaped buffer member 17 is interposed between the rear portion thereof and the stopper surface 23 a of the water discharge pipe 20. The buffer member 17 is made of an elastic body such as rubber. The insertion portion 45 of the water outlet member 40 and the sensor cable 14 of the sensor member 60 are inserted through the buffer member 17. The water outlet member 40 and the sensor member 60 are engaged with the stopper surface 23a of the water discharge pipe 20 with the buffer member 17 interposed therebetween, thereby restricting the movement toward the back side in the pipe axis direction.

  Here, in the water discharging apparatus 10 which concerns on this embodiment, in order to implement | achieve higher designability, the following structures are employ | adopted.

  FIG. 5 is a longitudinal sectional view showing the internal structure of the water discharge pipe 20. As shown in FIGS. 4 and 5, the water discharge pipe 20 includes a circumferential groove portion 31 (first groove portion) and a shaft groove portion 33 (second groove portion) that are formed as recesses on the inner circumferential surface 20 d. The circumferential groove 31 is formed to extend in the pipe circumferential direction of the water discharge pipe 20. The circumferential groove portion 31 is formed in a portion facing both sides in the transverse direction A and a portion on the upper side in the longitudinal direction B in the transverse section of the water discharge pipe 20. In FIG. 2, the circumferential groove portion 31 and the shaft groove portion 33 located on the front side of the paper surface are indicated by a one-dot chain line.

  The shaft groove portion 33 is formed so as to extend in the tube axis direction from the distal end opening portion 21 on the distal end side of the water discharge pipe 20 to the circumferential groove portion 31 and to be continuously connected to the circumferential groove portion 31. The shaft groove part 33 is formed in the part which opposes a horizontal direction in the cross section of the water discharge pipe 20. FIG.

  The circumferential groove portion 31 includes a tip side wall surface 31a provided on the tip side in the tube axis direction of the water discharge pipe 20 and a back side wall surface 31b provided on the back side in the tube axis direction. The tip side wall surface 31 a is formed on the inner surface of the water discharge pipe 20 as an engaged portion 35 to which a first locking portion 53 of a water discharge port member 40 described later and a second locking portion 87 of a fixture 80 are engaged. .

  As shown in FIGS. 2 to 4, the water discharge port member 40 is formed with projections 51 protruding from the lateral ribs 43 b on both sides in the horizontal direction A, that is, from the outer peripheral surface of the water discharge port member 40, in the cross section. . 6A is a cross-sectional view schematically showing a state in which the protrusion 51 of the water outlet member 40 in the water discharge pipe 20 is viewed from the upper side in the vertical direction Y. FIG. The protrusion 51 is disposed in the circumferential groove 31 and is provided as a first locking portion 53 that engages with the engaged portion 35 of the water discharge pipe 20 from the back side in the tube axis direction. The water discharge port member 40 is held by the engagement of the engaged portion 35 and the protrusion 51 so that the water discharge pipe 20 is prevented from coming out from the tip opening 21.

  In this example, the fixture 80 is disposed on the distal end side of the water discharge pipe 20 from the sensor member 60. As shown in FIG. 4, the fixture 80 includes a flat plate-like base portion 81, a plurality of contact pieces 83 provided on the base portion 81, and a plurality of elastic claws 85. In the fixing device 80, each part including the base 81 and the elastic claw 85 is integrally formed of a resin material.

  The base 81 is formed with a fitting hole 81a penetrating in the tube axis direction. The fitting hole 81a is formed in a shape corresponding to the shape of the fitting portion 65 of the sensor member 60, and the fitting portion 65 of the sensor member 60 is fitted therein. Thereby, the sensor member 60 is positioned in the direction (the pipe circumferential direction, the horizontal direction A, the vertical direction B) that intersects the pipe axis direction. The incident / exit surface 60 a of the sensor member 60 is provided to be exposed to the outside from the fitting hole 81 a of the fixture 80.

  The base 81 has a notch surface 81b that is notched so as to match the shape of the water outlet 41 of the water outlet member 40 on the lower surface thereof. Thereby, interference of the water discharged from the water discharge port 41 and the fixture 80 is suppressed.

  A plurality of contact pieces 83 (four in the drawing) are provided so as to protrude from the peripheral edge of the fitting hole 81a of the base 81 toward the back side in the tube axis direction. As shown in FIG. 2, the contact piece 83 contacts the step surface 61 a between the sensor main body 61 and the fitting portion 65 of the sensor member 60.

  As shown in FIG. 4, the elastic claw 85 is provided so as to protrude from the outer peripheral edge of the base 81 toward the back side in the tube axis direction. A plurality (three in the drawing) of elastic claws 85 are provided on both sides of the base 81 in the lateral direction and above the base 81.

  The elastic claw 85 includes an arm portion 85a that protrudes from the rear surface of the base portion 81 and extends in the tube axis direction, and a claw portion 85b that protrudes radially outward from the distal end portion of the arm portion 85a. The arm portion 85 a can be elastically deformed in the radial direction of the water discharge pipe 20. FIG. 6B is a cross-sectional view schematically showing a state in which the elastic claw 85 of the fixture 80 in the water discharge pipe 20 is viewed from the upper side in the vertical direction Y. As shown in FIGS. 2 and 6B, the claw portion 85 b is disposed in the circumferential groove portion 31. That is, the claw portion 85b is disposed at a position that can be engaged with the distal end side wall surface 31a as the engaged portion 35. The elastic claw 85 is provided as a second locking portion 87 that engages with the engaged portion 35 of the water discharge tube 20 from the back side in the tube axis direction. The fixture 80 is held such that the engagement of the engaged portion 35 and the elastic claw 85 restricts the withdrawal of the water discharge pipe 20 from the distal end opening 21. At this time, the fixture 80 is held by the engagement between the contact piece 83 and the sensor member 60 so as to restrict the sensor member 60 from coming out of the distal end opening 21 of the water discharge pipe 20.

  As shown in FIGS. 2 and 4, the spout member 40 is formed with a contact surface 55 at a position near the upper portion that is shifted to the rear side from the front end surface, and this contact surface 55 is a base 81 of the fixture 80. It touches the rear surface. The fixture 80 restricts the spout member 40 from coming out of the front end opening 21 of the spout pipe 20 by the engagement of the base 81 and the spout member 40, thereby holding the spout member 40 more stably. Is done.

  As shown in FIGS. 3 and 4, the spout member 40 is formed with a flat first guide surface 57 extending along the tube axis direction on the upper surface thereof. Moreover, the 2nd guide surface 37 extended along a pipe-axis direction is formed in the upper part of the internal peripheral surface 20d of the water discharge pipe 20. As shown in FIG. In this example, the second guide surface 37 is formed at a position shifted from the horizontal center position to both sides in the horizontal direction in the cross section of the water discharge pipe 20.

  In the sensor member 60, a flat lower sliding surface 67 is formed on the lower surface of the water outlet member 40 that faces the first guide surface 57. Further, the sensor member 60 has a flat upper sliding surface 69 formed on the upper surface of the water discharge pipe 20 facing the second guide surface 37. In this example, the upper sliding surface 69 is formed at a position shifted laterally from the protruding portion 63 of the sensor member 60.

  Next, an example of a method for arranging the water outlet member 40 and the sensor member 60 in the water discharge pipe 20 will be described.

  First, as shown in FIG. 7, the water discharge port member 40 is inserted from the distal end opening 21 of the water discharge pipe 20. At this time, the protrusions 51 on both lateral sides of the water discharge port member 40 are inserted into the shaft groove portion 33 of the water discharge pipe 20 from the opening side. Further, the protrusion 49 of the water outlet member 40 is inserted through the buffer member 17, and the buffer member 17 is attached to the water outlet member 40. Further, the water supply hose 13 connected to the water discharge port member 40 is inserted from the distal end opening 21 of the water discharge tube 20 before the water discharge port member 40 is inserted, and the proximal end opening 22 of the water discharge tube 20 (FIG. 1). (Refer to).

  The water discharge port member 40 is inserted until it is engaged with the stopper surface 23a of the water discharge pipe 20 with the buffer member 17 interposed therebetween. At this time, the protrusion 51 of the water discharge port member 40 passes through the shaft groove 33 and moves into the circumferential groove 31. Further, the spout member 40 is guided along the tube axis direction, which is the direction in which the shaft groove portion 33 extends, with the projection 51 engaging the wall surface of the shaft groove portion 33.

  The water outlet member 40 is moved to the lower side in the vertical direction B in the cross section of the water discharge pipe 20. The water discharge port member 40 is moved until the vertical ribs 43a and the horizontal ribs 43b, which are outer peripheral surfaces thereof, contact the lower portion of the inner peripheral surface of the water discharge pipe 20. Accordingly, the water discharge port member 40 is disposed at the first holding position to be held in the water discharge pipe 20. At this time, the protrusion 51 of the spout member 40 moves through the circumferential groove 31. The spout member 40 is guided along the pipe circumferential direction, which is the direction in which the circumferential groove 31 extends, with the protrusion 51 engaging the tip side wall surface 31 a of the circumferential groove 31. Therefore, by moving the projection 51 of the water outlet member 40 through the shaft groove portion 33 and the circumferential groove portion 31 of the water discharge pipe 20, the water outlet member 40 can be arranged at the first holding position, and the workability during the work is good. Become.

  Subsequently, as shown in FIG. 8, the sensor member 60 is inserted between the tip opening 21 of the water discharge pipe 20 and the inner peripheral surface 20 d of the water discharge pipe 20 and the water discharge port member 40. At this time, the sensor cable 14 connected to the sensor member 60 is inserted from the distal end opening 21 of the water discharge pipe 20 and inserted through the buffer member 17 before the sensor member 60 is inserted, and then the base of the water discharge pipe 20 is inserted. It is pulled out from the end opening 22 (see FIG. 1).

  The sensor member 60 is moved until its rear end face engages with the stopper surface 23a of the water discharge pipe 20 with the buffer member 17 interposed therebetween. The sensor member 60 is disposed at the second holding position to be held in the water discharge pipe 20. When the sensor member 60 is disposed at the second holding position, the water outlet member 40 and the sensor member 60 are restricted from moving in the direction intersecting the tube axis direction (the pipe circumferential direction, the horizontal direction A, and the vertical direction B). So as to fit into the water discharge pipe 20. Therefore, by inserting the sensor member 60 from the distal end opening 21 of the water discharge pipe 20, the movement of the water discharge outlet member 40 and the sensor member 60 in the direction intersecting the pipe axis direction can be restricted.

  At this time, the upper sliding surface 69 of the sensor member 60 is slid to the second guide surface 37 (see FIG. 3) of the water discharge pipe 20, and the lower sliding surface 67 of the sensor member 60 is moved to the first of the water discharge port member 40. Slide on the guide surface 57. Therefore, the sensor member 60 can be arranged at the second holding position in the water discharge pipe 20 by sliding the sliding surfaces 67 and 69 of the sensor member 60 on the guide surfaces 57 and 37 such as the water discharge port member 40. Workability is improved.

  Subsequently, as shown in FIG. 9, the fixture 80 is inserted from the distal end opening 21 of the water discharge pipe 20. At this time, the elastic claw 85 comes into contact with the inner peripheral surface 20d of the water discharge pipe 20 and the claw portion 85b, and the arm portion 85a is elastically deformed radially inward. When the claw portion 85b of the elastic claw 85 is inserted deeper than the distal end side wall surface 31a of the circumferential groove portion 31, the arm portion 85a is displaced radially outward by the elastic repulsive force, and the claw portion 85b is located in the circumferential groove portion 31. Be placed. That is, the elastic claw 85 is disposed at a position that can be engaged with the distal end side wall surface 31 a of the circumferential groove 31 by snap fitting when inserted from the distal end opening 21 of the water discharge pipe 20.

  According to the water discharging apparatus 10 according to the above embodiment, the engagement between the protrusion 51 (first locking portion 53) of the water discharge port member 40 and the distal end side wall surface 31a (the engaged portion 35) of the circumferential groove portion 31 The water outlet member 40 is held in the water discharge pipe 20. Further, the fixture 80 is held in the water discharge pipe 20 by the engagement of the elastic claw 85 (second locking portion 87) of the fixture 80 and the distal end side wall surface 31 a (the engaged portion 35) of the circumferential groove portion 31. . Further, the sensor member 60 is held in the water discharge pipe 20 by the engagement between the fixture 80 and the sensor member 60 or the engagement between the water discharge port member 40 and the sensor member 60. That is, the engaging portion 35 and the engaged portion 35 provided in any of the plurality of inner parts 15 are engaged, and the inner part provided with the engaging portion and the other inner part are engaged, thereby The inner part 15 is held in the water discharge pipe 20. In order to hold the plurality of inner parts 15 in the water discharge pipe 20, the engagement between the engaged part 35 formed on the inner surface of the water discharge pipe 20 and the locking parts 53 and 87 of the inner part 15 is utilized. Screws or the like are not exposed on the outer peripheral wall 20c of the water pipe 20, and the appearance of the water discharge pipe 20 is clean and the design is good.

  Further, since the engaged portion 35 is formed by the circumferential groove portion 31, the circumferential groove portion 31 as the engaged portion 35 can be easily formed by cutting or the like, and a convex portion such as a protrusion is formed as the engaged portion 35. Productivity is better than this.

  Further, according to the present embodiment, when the elastic claw 85 of the fixture 80 is inserted from the distal end opening 21 of the water discharge pipe 20, the elastic claw 85 can be engaged with the distal end side wall surface 31 a of the circumferential groove 31 by snap fitting. Easy to place.

  Moreover, since the water discharge port member 40 engages with the stopper surface 23a of the water discharge pipe 20, the following effects are exhibited. The water discharge port member 40 needs to connect the water supply hose 13 connected to the solenoid valve 110 after fixing the water discharge pipe 20 to the counter 11. The water supply hose 13 is thick so that it can withstand water pressure, and tends to be relatively hard to deform. Therefore, if the water supply hose 13 is moved during the connection work to the electromagnetic valve 110, a force is exerted to extract the water outlet member 40 to the back side in the tube axis direction, and the water outlet member 40 may be drawn to the back side. There is. In this respect, according to the present embodiment, even if a force is exerted on the water outlet member 40 to the back side of the water discharge pipe 20, the water outlet member 40 engages with the stopper surface 23a, and the water outlet member Pulling out the back side of 40 can be prevented.

  Moreover, the spout member 40 which concerns on this embodiment is formed with the protrusion part 51 as the 1st latching | locking part 53 in the horizontal direction both sides in the cross section. Thereby, even if the vertical dimension of the water discharge pipe 20 is longer than the horizontal dimension, a structure for holding the water discharge port member 40 in the water discharge pipe 20 is provided without changing the vertical dimension. Therefore, even if a structure for holding the water discharge port member 40 in the water discharge pipe 20 is provided, an increase in size due to an increase in the vertical dimension of the water discharge pipe 20 does not occur, and good design can be ensured.

[Second Embodiment]
Hereinafter, the same reference numerals are given to the same elements as those described in the first embodiment, and a duplicate description is omitted.

  In the water discharge device 10 according to the first embodiment, the case where the water discharge port member 40, the sensor member 60, and the fixture 80 are arranged as the inner part 15 in the water discharge pipe 20 is illustrated. In 2nd Embodiment, as shown in FIG. 10, the water outlet member 40 and the sensor member 60 are arrange | positioned in the water discharge pipe 20 as the inner component 15, and the fixing tool 80 is not arrange | positioned.

  The water discharge port member 40 is provided with a flat plate-like fixing portion 59 on the upper side of the front portion of the cylindrical main body portion 43. As with the base portion 81 of the fixture 80 according to the first embodiment, the fixing portion 59 is provided with a fitting hole 81a, a plurality of contact pieces 83, and a plurality of elastic claws 85. In addition, the protrusion 51 is not formed in the outer peripheral surface of the water outlet member 40. That is, the spout member 40 is not provided with the first locking part 53 but is provided with the second locking part 87.

  The water discharge port member 40 is held so that the discharge from the front end opening 21 of the water discharge pipe 20 is restricted by the engagement between the front end side wall surface 31 a of the circumferential groove 31 and the elastic claw 85. At this time, the sensor member 60 is engaged with the abutting piece 83 of the fixing portion 59 and is held so as to be restricted from coming out from the tip opening portion 21 of the water discharge pipe 20 by the engagement with the fixing portion 59. The

  Next, an example of a method for arranging the water outlet member 40 and the sensor member 60 in the water discharge pipe 20 will be described.

  First, the sensor member 60 is inserted from the distal end opening 21 of the water discharge pipe 20. Next, as shown in FIG. 11, the water discharge port member 40 is inserted into the gap between the sensor member 60 and the inner peripheral surface of the water discharge tube 20 from the tip opening 21 of the water discharge tube 20. At this time, the elastic claw 85 is disposed at a position that can be engaged with the distal end side wall surface 31a of the circumferential groove portion 31 by snap fitting.

  Like the water discharging apparatus 10 according to the present embodiment, the engaging portion 35 and the engaged portion 35 provided in any of the plurality of inner parts 15 disposed in the water discharging pipe 20 are engaged, and the engaging portion It is only necessary that the inner part 15 provided with the inner part 15 and the other inner part 15 are engaged with each other so that the plurality of inner parts 15 are held in the water discharge pipe 20.

  Therefore, for example, the locking portion may be provided only on the sensor member 60 without being provided on the water outlet member 40. In this case, the fixing member 80 is not provided as in the second embodiment, but the fixing member 59 is provided in the sensor member 60, and the spout member 40 is engaged by the engagement of the fixing part 59 of the sensor member 60 and the spout member 40. You may hold | maintain so that escape | escape of may be controlled. Moreover, you may provide a latching | locking part in both the water outlet member 40 and the sensor member 60. FIG. In this case, the fixing member 80 as in the first embodiment and the fixing portion 59 as in the second embodiment are not provided, but the engaging portion of the water discharge port member 40 and the engaged portion 35 are engaged, and the sensor member 60. The engaging portion 35 and the engaged portion 35 are engaged with each other, and the water outlet member 40 and the sensor member 60 are held in the water discharge pipe 20 by the engagement of the water outlet member 40 and the sensor member 60. Also good. Further, the locking portions of the water outlet member 40 and the sensor member 60 may be configured by the elastic claws 85 described above.

  Further, the locking portion may be provided only on the fixture 80 without being provided on the water outlet member 40 and the sensor member 60. In this case, the fixture 80 is held so that the escape of the fixture 80 is restricted by the engagement of the second locking portion 87 and the engaged portion 35. Further, the fixture 80 holds the outlet member 40 and the sensor member 60 such that the outlet member 40 and the sensor member 60 are prevented from being pulled out by engagement with the outlet member 40 and the sensor member 60. Anyway, the fixing tool 80 should just hold | maintain this in the water discharge pipe 20 by engagement with the at least one of the water outlet member 40 and the sensor member 60. FIG.

  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.

  In the above-mentioned embodiment, the case where the shaft groove part 33 as a recessed part was formed in the internal peripheral surface of the water discharge pipe 20, and the to-be-engaged part 35 was formed by the front end side wall surface 31a of the shaft groove part 33 was illustrated. In addition to this, the engaged portion 35 may be formed by forming a convex portion on the inner peripheral surface of the water discharge pipe 20 and by a back side wall surface of the convex portion. In any case, the engaged portion 35 may be formed by a stepped surface provided by causing a part of the inner peripheral surface of the water discharge pipe 20 to be recessed or protruded in the radial direction.

  Moreover, the water discharging apparatus 10 may be used for the installation installed in a building, a ship, etc., and may be used for a kitchen, a hand-washing machine, a bathroom etc. besides a washstand. Moreover, the counter 11 was illustrated as a base | substrate to which the water discharge pipe 20 is fixed. The base is exemplified by a counter in a washstand or a kitchen, but also includes a wall member or the like that partitions the outside of a facility such as a bathroom.

  Further, the water discharge pipe 20 is not limited to the gooseneck shape, and may be formed in a known shape.

DESCRIPTION OF SYMBOLS 10 Water discharging apparatus, 15 Inner components, 20 Water discharging pipe, 21 Tip opening part, 31 Circumferential groove part, 33 Shaft groove part, 35 Engaged part, 37 2nd guide surface, 53 1st latching | locking part, 57 1st guide surface, 67 lower sliding surface, 69 upper sliding surface, 80 fixing tool, 85 elastic claw, 87 second locking portion.

Claims (7)

A water discharge pipe having an opening at the tip;
A plurality of inner parts disposed in the water discharge pipe and inserted from the opening;
An engaged portion formed on the inner surface of the water discharge pipe,
The plurality of inner parts include
A first inner part;
A second inner part disposed between an inner peripheral surface of the water discharge pipe and the first inner part;
By engaging the engaging part provided in any of the plurality of inner parts and the engaged part and engaging the inner part provided with the engaging part and the other inner part, A water discharging device, wherein an inner part of the water discharging device is held in the water discharging pipe. The water discharge pipe is formed with a circumferential groove portion extending in the pipe circumferential direction on the inner circumferential surface thereof,
The water discharge device according to claim 1, wherein the engaged portion is formed by the circumferential groove portion. The water discharge pipe is formed with an axial groove portion extending in the pipe axis direction from the distal end side to the circumferential groove portion on the inner peripheral surface thereof,
The locking portion is provided on the first inner part,
When inserting the first inner part from the opening, the first inner part is held at a holding position to be held in the water discharge pipe by moving the locking part inside the shaft groove part and the circumferential groove part. The water discharge device according to claim 2, wherein The plurality of inner parts further includes a fixture provided with the locking portion,
The fixing tool is held in the water discharge pipe by the engagement of the locking part and the engaged part, and is fixed in the water discharge pipe by the engagement with at least one of the first inner part or the second inner part. The water discharge device according to any one of claims 1 to 3, wherein the water discharge device is held in the water.   The said latching | locking part is an elastic nail | claw arrange | positioned in the position which can be engaged with the said to-be-engaged part by a snap fit, when inserting the said inner part from the said opening part. The water discharging apparatus in any one of.   The first inner part and the second inner part intersect the pipe axis direction by inserting the second inner part from the opening between the inner peripheral surface of the water discharge pipe and the first inner part. The water discharge device according to any one of claims 1 to 5, wherein the water discharge device is fitted into the water discharge pipe so as to be restricted in movement in a direction to be performed.   A guide surface on which the second inner part slides when the second inner part is inserted from the opening is formed at a location where the inner peripheral surface of the water discharge pipe and the first inner part face each other. The water discharging apparatus according to claim 6.

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