JP5435273B2 - Water discharge device - Google Patents

Description

  The present invention relates to a water discharge device including a water discharge pipe, and more specifically, a cylindrical water discharge port member that is attached to the inside of the front end portion of the water discharge pipe and forms a water discharge opening at the front end of the water channel in the water discharge pipe, and discharged from the water discharge opening. It is related with the water discharging apparatus provided with the discharge end member which controls the pattern of water discharging.

  In general, a water faucet for an automatic faucet that automatically discharges water from a water outlet based on detection of a hand or the like by a sensor is connected to a water discharge pipe, a water supply tube that is inserted into the water discharge pipe and guides water to the water outlet, A cylindrical water outlet member that is mounted inside the tip of the water discharge pipe to form a water outlet at the tip of the water channel in the water discharge pipe, and a water flow that is disposed at the water outlet and allows the water flow to pass, and discharge of water discharged from the water outlet And a discharge end member for controlling the pattern.

  In this type of water spouting device, conventionally, the discharge end member is housed in a dedicated cylindrical housing, and is held in a state of being prevented from being removed in the direction of water discharge by the housing, and the housing is screwed or the like. The water outlet member is fixed to the water outlet member by a fixing means, and the water outlet member is fixed to the water discharge pipe with a fixing tool such as a screw, so that the discharge end member, the housing, and the water outlet member are not attached to the water discharge pipe. It was.

Patent Document 1 below discloses this type of water discharge device.
FIG. 9 shows a specific example.
In the figure, 200 is a water discharge pipe, 202 is a water supply tube inserted into the water supply pipe, 204 is a water discharge port member connected to the water supply tube 202, and 206 is a discharge end member for controlling the discharge pattern of water discharge.

  Reference numeral 208 denotes a dedicated housing for the discharge end member 206 having a cylindrical shape. The discharge end member 206 is inserted into the housing 208 and held in the housing 208 in a state of being prevented from being removed in the direction of discharged water.

As shown in FIG. 9B, the housing 208 is provided with a female screw portion 210, and the housing 208 is screwed to the male screw portion of the water discharge port member 204 at the female screw portion 210.
Further, the water outlet member 204 is fixed and attached to the water discharge pipe 200 with a screw 212 as a fixing member.
A water discharge device having the same configuration is also disclosed in Patent Document 2 below.

  However, such a water discharge device requires three parts, namely, the discharge end member 206, the housing 208, and the water discharge port member 204 at the tip of the water discharge pipe. When attaching to the water pipe 200, it is necessary to fix the housing 208 and the water outlet member 204 and the water outlet member 204 and the water pipe 200 at at least two different locations, and the structure is complicated. At the same time, it takes a lot of work to assemble, and when disassembling parts for maintenance work, it is necessary to release and re-fix at multiple locations, which requires a lot of trouble during maintenance work. .

  Although the case of the automatic faucet has been described as an example, such a problem is a problem that occurs in common in a water discharge device having a discharge end member and a water discharge port member at the tip of the water discharge pipe.

JP 2002-275969 A Japanese Patent Laid-Open No. 2002-70096

  The present invention is based on the circumstances as described above, and provides a water discharge device that requires fewer parts than the prior art, has a simple structure, and can easily perform operations such as assembly and maintenance. It was made as a purpose.

  Thus, the first aspect of the present invention comprises: (a) a water discharge pipe; and (b) a cylindrical water discharge outlet that is mounted inside the front end of the water discharge pipe and forms a water discharge opening at the front end of the water channel in the water discharge pipe. A water discharge device comprising: a member; and (c) a discharge end member that is disposed in the water discharge port and allows a water flow to pass therethrough and controls a discharge pattern of water discharged from the water discharge port. The cylindrical water discharge member is inserted into the housing as a housing, and each of the discharge end member and the water discharge member is fixed to the water discharge pipe by a common fixing member.

  According to a second aspect of the present invention, in the first aspect, the fixing member is provided with an insertion shaft portion, the fixing pipe penetrating the tube wall is provided in the water discharge pipe, and the discharge end member and the water discharge port member are provided in the discharge hole member. The insertion shaft portion for inserting the insertion shaft portion is provided so as to overlap each other in a direction passing through the fixing hole and passing through the pipe wall of the water discharge tube, and the insertion shaft portion of the fixing member from the outside of the water discharge tube. Are inserted into the fitting holes of the water discharge port member and the discharge end member through the fixed hole, respectively, and the discharge end member and the water discharge port member are fixed to the water discharge pipe.

  According to a third aspect of the present invention, in the second aspect, the fixing hole is a hole having a larger diameter than the fitting hole of the discharge end member and the water discharge port member, and an outer diameter corresponding to the fixing member. A peripheral wall portion is provided, and the fixing member is attached to the water discharge pipe so as to fit the peripheral wall portion into the fixing hole.

  According to a fourth aspect of the present invention, in the third aspect of the present invention, the claw portions that are hooked on the edge portions of the fixing holes are provided on the peripheral wall portions at positions opposed to each other in the radial direction. The one claw portion is fixed to the peripheral wall portion, the other claw portion is provided at the tip of the elastic piece, and the elastic piece and the claw portion of the tip constitute an elastic claw, The claw portion of the elastic claw is hooked on the edge portion with the elastic deformation of the elastic piece by being pushed into the water discharge pipe.

  According to a fifth aspect of the present invention, in the fourth aspect, the fixing member is attached in a state where the pair of claws are positioned in a left-right direction in a front view with respect to the water discharge pipe.

  According to a sixth aspect of the present invention, in any one of the first to fifth aspects, the water outlet member has a cylindrical insertion portion, and the insertion portion is a flexible member disposed inside the water discharge pipe. It is characterized by being inserted into a water supply tube of the nature and connected to the water supply tube.

Effects and effects of the invention

As described above, according to the present invention, the discharge end member is inserted into the inside as a cylindrical water discharge port member as a housing, and each of the discharge end member and the water discharge port member is fixed to the water discharge pipe by a common fixing member. According to the present invention, it is possible to eliminate the need for a housing for holding the discharge end member in the retaining state, which is conventionally required, and to reduce the number of required parts. Since each of the member and the water discharge port member is fixed to the water discharge pipe by a common fixing member, they can be fixed to the water discharge pipe at one place, and the structure can be simplified. The workability during the assembly work and the maintenance work is improved, and the assembly and maintenance work can be easily performed.
Here, the discharge end member can be inserted and fitted into the water discharge port member in a fitted state.

In the present invention, the fixing member is provided with an insertion shaft portion, the water discharge pipe has a fixing hole penetrating the tube wall, and the discharge end member and the water discharge port member have an insertion hole for inserting the insertion shaft portion. Passing through the fixing hole and passing through the pipe wall of the water discharge pipe, they are provided so as to overlap with each other, and the fitting shaft portion of the fixing member is passed from the outside of the water discharge pipe to the water discharge port member and the discharge end through the fixing hole. It can be made to fit in the fitting hole with a member, and to fix them to a water discharge pipe (Claim 2).
If it does in this way, it will fix and attach to a water discharge pipe easily with a common fixing member only by making the insertion shaft part of a fixing member fit in each insertion hole of a spout member and a discharge end member. be able to.

In the present invention, the fixing hole is a hole having a larger diameter than the fitting holes of the discharge end member and the water outlet member, and the fixing member is provided with a peripheral wall portion having a corresponding outer diameter. The fixing member can be attached to the water discharge pipe by fitting the portion into the fixing hole (claim 3).
In this way, the fixing strength of the fixing member itself with respect to the water discharge pipe can be increased, and as a result, the fixing strength of the discharge end member and the water discharge port member with respect to the water discharge pipe can be increased.
It is also possible to fix the fixing member to the water discharge pipe so as not to protrude from the water discharge pipe.

  According to a fourth aspect of the present invention, a claw portion that hooks on the edge of the fixing hole is provided in a shape protruding in the radial direction at a position opposite to each other in the radial direction of the peripheral wall portion of the fixing member, and In the fixed state, the other claw portion is provided at the tip of the elastic piece, and the elastic piece and the claw portion constitute an elastic claw, and the elastic claw portion is elastically deformed by being pushed into the water discharge pipe. It is designed to be hooked on the edge of the fixing hole.

  According to the fourth aspect, the fixing member can be easily fixed to the water discharge pipe with a small force, while the fixing force of the fixing member with respect to the water discharge pipe and the reliability of the fixation can be improved, and the fixing member is detached from the water discharge pipe. The anxiety such as end can be resolved.

  For example, unlike the above, if an elastic claw is provided at each of the circumferential wall portions facing each other in the radial direction, and each elastic claw is pushed into the fixing hole simultaneously with the elastic deformation of each elastic piece, The resistance of elastic deformation by the elastic piece increases, and a strong force is required when pushing in, which makes it difficult to fix to the water discharge pipe.

On the other hand, when the elastic piece is elastically deformed with a smaller force, the hook of the elastic claw on the edge of the fixing hole is tried to be hooked to the edge of the fixing hole. The fixing member attached to the water discharge pipe is likely to be detached from the water discharge pipe.
In order to eliminate the anxiety that the fixing member is detached from the water discharge pipe, if the hook of the elastic claws on the edge of the fixing hole is increased, a strong force is required when pushing the elastic claws, and the above-mentioned As a result, the workability of the push-in deteriorates.

On the other hand, according to the fixing structure of claim 4, the fixing member can be easily fixed to the water discharge pipe with a weak force, and after fixing, the removal of the fixing member from the water discharge pipe is effectively prevented. Can do.
In the fixing structure according to the fourth aspect of the invention, the fixing member is inclined with respect to the fixing hole, and the claw portion on the fixing side is first hooked on the edge portion of the fixing hole, and thereafter, is positioned at a position opposed to the radial direction. When an elastic claw is pushed into the fixing hole, the elastic claw is pushed into the fixing hole with elastic deformation, and the elastic claw is hooked on the edge of the fixing hole at the pushing position. The fixing member is fixed to the water discharge pipe and prevented from coming off.
In the fixing structure according to claim 4, when the one claw portion provided in the fixed state is hooked to the edge of the fixing hole, no strong pushing force is required, and therefore the claw portion to the edge of the fixing hole is not required. A large allowance can be secured.

  On the other hand, since the elastic claw only needs to be provided on one side in the radial direction, the elastic claw can be pushed in by reducing the allowance of the elastic claw to the edge of the fixing hole. It can be done easily with a small force. Nevertheless, according to this fourth aspect, since a large allowance can be secured for the entire fixing hole edge portion of the claw portion on the fixed side and the claw portion of the elastic claw, the fixing member can be easily fixed to the water discharge pipe. It is possible to satisfactorily prevent the fixing member from being detached from the water discharge pipe.

In this case, the fixing member can be attached so that the pair of claws are positioned in the left-right direction in a front view with respect to the water discharge pipe (Claim 5).
By doing so, the discharge end member and the water discharge port member can be satisfactorily prevented from rattling with respect to the water discharge pipe in the front-rear direction (tube axis direction) when viewed from the user. The relative assembly position in the front-rear direction with respect to the water discharge pipe of the member and the water discharge port member can be satisfactorily positioned at a preset appropriate position.

  In the present invention, the water discharge port member can be connected to the water supply tube by inserting the cylindrical insertion portion into a flexible water supply tube disposed inside the water discharge tube (claim). Item 6).

It is the whole automatic faucet provided with the water discharging apparatus which is one embodiment of the present invention. It is a longitudinal cross-sectional view of the water discharge pipe in the same embodiment. It is principal part sectional drawing of the front-end | tip part of the water discharging pipe in the embodiment. It is a figure of the spout unit in the embodiment. It is a perspective view which shows the discharge end member and water outlet member in the same embodiment in the state before assembling | attaching to a water discharge pipe. It is the figure which looked at the state shown in FIG. 5 from the bottom face side. It is a single-piece figure of the fixing member in the embodiment. It is a figure which shows the assembly | attachment procedure to the water discharge pipe of the fixing member in the embodiment. It is a figure which shows an example of the conventional water discharging apparatus.

Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, 10 is an automatic faucet provided with the water discharge device of the present embodiment, and 12 is a water discharge pipe in the water discharge device. Here, the water discharge pipe 12 is made of metal.
The water discharge pipe 12 is installed so as to stand up from a counter (mounting base) 14, and the upper part has an inverted U-shaped gooseneck shape, and its front end surface is inclined forward and downward toward the user.
As shown in FIGS. 1 and 2, the water discharge pipe 12 is formed with a substantially elliptical opening 16 corresponding to the cross-sectional shape of the water discharge pipe 12 at the distal end surface.

As shown in FIG. 2, the water discharge pipe 12 integrally has a seating portion 18 and an insertion tube 20 extending downward from the seating portion 18 on the base end side.
The insertion tube 20 is inserted through the mounting hole 22 of the counter 14 and protrudes to the lower side of the counter 14, and a fixing nut 26 is screwed into a male screw portion 24 provided on the outer peripheral surface thereof.
The water discharge pipe 12 is attached to the counter 14 such that the seat 18 is seated on the upper surface of the counter 14, and the counter 14 is sandwiched between the seat 18 and the fixing nut 26 via packings 28 and 30. .

In FIG. 1, reference numeral 32 denotes a main body function unit disposed below the counter 14, and 34 denotes a function unit box of the main body function unit 32, in which an electromagnetic valve 36 is accommodated.
The electromagnetic valve 36 is a valve that opens and closes a water supply path for supplying water from a water supply main pipe to a water outlet 58 (FIG. 2) described later. The lower end of the water supply tube 38 connects the joint 40 to the electromagnetic valve 36. Connected through.

The water supply tube 38 is a member that forms a part of the water supply channel, extends upward from the functional unit box 34, and enters the interior of the water discharge pipe 12 from the opening 42 at the base end (lower end) of the water discharge pipe 12. .
The water supply tube 38 further extends inside the water discharge pipe 12 until it reaches the tip.
In this example, the water supply tube 38 is flexible and is made of polyurethane resin.
In FIG. 1, 44 represents a water stop cock.

The functional unit box 34 also accommodates a control unit 46 that includes a microcomputer as a main element, and a sensor main body 48 that forms the main element of the sensor.
The control unit 46 controls the operation of the electromagnetic valve 36, opens the electromagnetic valve 36 based on detection of the detection target by the sensor, and closes the electromagnetic valve 36 when the sensor detects no detection target.

The sensor main body 48 includes a light emitting element such as an LED that emits light (in this case, infrared light), a light receiving element such as a photodiode and a phototransistor, a light emission driving circuit that emits light by the light emitting element, and light received by the light receiving element. A sensor circuit including a photoelectric conversion circuit that converts the signal into an electrical signal and processes the signal.
A light-emitting optical fiber 80 (see FIG. 4) extends from the light-emitting element of the sensor body 48, and a light-receiving optical fiber 82 extends from the light-receiving element.

Reference numeral 50 denotes an optical fiber cord in which the two optical fibers 80 and 82 are bundled into one, and extends from the sensor main body 48 and is discharged from the opening 42 at the proximal end of the water discharge pipe 12 as shown in FIG. It enters the water pipe 12.
The cord 50 further extends inside the water discharge pipe 12 until it reaches the tip.

As shown in FIG. 3, a water discharge port member 52 is housed inside the distal end portion of the water discharge pipe 12.
In this example, the water discharge port member 52 is made of resin (here, POM resin (polyacetal resin)), and has a substantially elliptical cylindrical shape corresponding to the shape of the tip of the water discharge pipe 12 as a whole.

  This water discharge port member 52 is integrally provided with a cylindrical insertion portion 54, and after the insertion portion 54 is press-fitted into the water supply tube 38, a band-shaped fastening member that tightens the water supply tube 38 from the outer peripheral surface. 56 is connected to the water supply tube 38 and fixed.

As shown also in FIG. 4, the opening at the tip of the water outlet member 52 forms a water outlet 58, and a water flow is passed through the water outlet 58 to control the discharge pattern of water discharged from the water outlet 58. A discharge end member 60 is disposed.
Specifically, the discharge end member 60 has a cylindrical shape with an elliptical shape with a flat cross-sectional shape, and the discharge end member 60 has a cylindrical discharge port member 52 as shown in FIG. It is inserted into the inside and is held in the water outlet member 52 at a position slightly behind the water outlet 58.
That is, in this embodiment, there is no dedicated housing for the discharge end member 60 that accommodates and holds the discharge end member 60 in the retaining state, and the discharge end member 60 uses the water outlet member 52 as a housing. It is housed inside.

In this embodiment, the discharge end member 60 rectifies and discharges the flow of water sent through the water supply tube 38. That is, the discharge pattern of the discharged water is a bundle of rectified discharged water.
However, the water sent through the water supply tube 38 can be discharged as a bubble stream containing bubbles or as a shower stream. Alternatively, the water discharge can be discharged in various other patterns.

In the present embodiment, the discharge end member 60 and the water discharge port member 52 form a water discharge port unit 66 together with a light projecting unit 62 and a light receiving unit 64 described later.
In the spout unit 66, the discharge end member 60 and the spout member 52 are commonly fixed in a fixing hole 68 provided in the spout pipe 12 by a fixing member 67 shown in FIG.
The fixing structure will be described later.

In FIG. 4, 80 is an optical fiber on the light projecting side, 82 is an optical fiber on the light receiving side, and the light projecting unit 62 and the light receiving unit are formed by the optical fiber 80 on the light projecting side, 64 is configured.
The light projecting unit 62 is provided with a lens 84 for imparting directivity to the projected light.
The optical fibers 80 and 82 are integrally provided with an annular convex portion 86 for fixing the optical fibers 80 and 82 to the water outlet member 52 in an axially positioned state.

In this embodiment, the water discharge port member 52 has a main body portion 88 and a cover 90 that covers the upper surface thereof.
The main body 88 is provided with deep holding grooves 92A and 94A extending in the axial direction of the optical fibers 80 and 82, and corresponding shallow holding grooves 92B and 94B are also provided on the cover 90 side. Optical fibers 80 and 82 are fitted into the grooves 92A and 92B and 94A and 94B and held there.

The holding grooves 92A, 92B and 94A, 94B are provided with concave portions 96A, 96B and 98A, 98B corresponding to the convex portions 86 of the optical fibers 80, 82. The optical fiber 80 has the convex portions 86 and the concave portions 96A, 96B. The optical fiber 82 is fixed and held in the axially positioned state with respect to the water discharge port member 52 by the concave-convex fitting between the convex portion 86 and the concave portions 98A, 98B.
The water outlet member 52 is provided with a U-shaped notch-shaped light projecting window 100 and light receiving window 102 at the front end.

  In addition, a pair of curved elastic arms 104 are integrally formed on the cover 90, and the cover 90 elastically connects the claw 106 at the tip of the pair of elastic arms 104 to the corresponding locking projection 108 of the main body 88. By being locked, the main body 88 is assembled.

In this embodiment, the sensor is constituted by the sensor main body 48 shown in FIG. 1, the cord 50 extending therefrom, and the light projecting unit 62 and the light receiving unit 64 configured by the distal ends of the optical fibers 80 and 82. When the sensor detects an object to be detected, usually a hand that is put out by the user, the electromagnetic valve 36 opens under the control of the control unit 46, and water is automatically discharged from the water outlet 58 of FIG.
When the user pulls in the hand and moves out of the detection area by the sensor, the sensor does not detect the hand. Here, the electromagnetic valve 36 is closed under the control of the control unit 46 and the water discharged from the water outlet 58 is discharged. Stop.

The fixing member 67 is a push button type member having a circular planar shape, and as shown in FIG. 7, a circular peripheral wall portion 70 rising from the bottom portion 69 and a fitting rising from the bottom portion 69 inside the peripheral wall portion 70. And a shaft portion 72.
The insertion shaft portion 72 is disposed at a position eccentric to the left side in the drawing from the center of the bottom portion 69 in the plan view shown in FIG. 7A, and has a first insertion portion 74 on the base end side and a first protrusion protruding upward therefrom. 2 insertion portions 76.

As shown in FIG. 7A, the first insertion portion 74 has a rectangular shape whose planar shape is long in the vertical direction in the drawing, and the corner portion has a curved shape as shown in FIG. 7B. There is no. In FIG. 7B, reference numeral 78 represents the curved portion.
The second insertion portion 76 has a planar circular shape having substantially the same diameter as the width dimension of the first insertion portion 74 (dimension in the left-right direction in FIG. 7A), and its upper portion is formed in a tapered shape. Yes.

  The peripheral wall 70 of the fixing member 67 is hung on the edge of the fixing hole 68 described later at a position 180 ° apart in the circumferential direction at the end opposite to the bottom 69, that is, at a position facing the radial direction. The claw portions 110 and 112 to be stopped are provided in a shape protruding in the radial direction.

  One claw portion 110 is formed integrally with the peripheral wall portion 70 in a fixed state, and the other claw portion 112 is formed integrally with the distal end portion of the elastic piece 114 formed by a part of the peripheral wall portion 70. The elastic piece 114 and the claw portion 112 constitute an elastic claw 116 having an elastic deformability in the radial direction.

Here, the outer surface of the elastic piece 114 is positioned so as to be drawn inward in the radial direction with respect to the other portion of the peripheral wall portion 70, and an inclined cam surface 118 is provided on the claw portion 112.
The claw portion 110 has a larger allowance for the edge portion of the fixing hole 68 than the claw portion 112.
As shown in FIG. 3B, the fixing member 67 is fixed to the water discharge pipe 12 in a direction in which the claw portions 110 and 112 are positioned to the left and right in the front view with respect to the water discharge pipe 12.
In FIG. 7A, reference numeral 122 denotes a cut made in the peripheral wall portion 70 in order to give the elastic piece 114 an elastic deformability.

Further, as shown in FIG. 7B, the outer peripheral surface of the peripheral wall portion 70 is such that the portion on the left side in the figure between the claw portions 110 and 112 gradually increases in diameter from the bottom 69 side toward the opposite end. The taper surface 120 is a partial taper surface in which the decrease is reduced.
In addition, the part between the nail | claw parts 110 and 112 on the opposite side to the taper surface 120 of the outer peripheral surface of the surrounding wall part 70 is made into the surface which makes a straight shape in an axial direction.

On the other hand, the fixing hole 68 formed in the water discharge pipe 12 has a circular shape with a hole diameter corresponding to the fixing member 67 as shown in FIG.
However, the shape of the inner peripheral surface of the fixing hole 68 is such that a portion of the fixing member 67 corresponding to the tapered surface 120 in FIG. 7B is an inclined surface 124 inclined at the same angle as the tapered surface 120. Further, the inner peripheral surface on the opposite side is an inclined surface inclined at the same angle in the same direction as the inclined surface 124 as shown in FIG.

  As shown in FIG. 3 and FIG. 6, the first fitting portion in the fitting shaft portion 72 of the fixing member 67 includes the water outlet member 52 and the discharge end member 60 inserted into the water discharge port member 52. 74 and the insertion holes 126 and 128 corresponding to the second insertion portion 76 are provided.

Here, the insertion hole 126 is provided in a shape that penetrates the cylindrical wall of the water discharge port member 52, and the insertion hole 128 on the discharge end member 60 side is a bottom that does not penetrate the cylindrical wall of the discharge end member 60. It is provided in the shape with.
Here, the insertion hole 126 of the water discharge port member 52 and the insertion hole 128 of the discharge end member 60 are provided in a shape overlapping each other in a direction passing through the fixed hole 68 in the water discharge pipe 12 and passing through the tube wall. It has been.
Specifically, here, the insertion holes 126 and 128 are arranged at positions that are eccentric with respect to the center of the fixing hole 68 corresponding to the arrangement positions of the above-described insertion shaft portions 72 in the fixing member 67. It is provided concentrically with the shaft 72.

  Further, the insertion hole 126 on the water discharge port member 52 side has a size corresponding to the first insertion portion 74 in the insertion shaft portion 72, and the insertion hole 128 on the discharge end member 60 side is the front surface of FIG. The shape is smaller than the insertion hole 126 in view, and is formed in a shape corresponding to the second insertion portion 76 (however, these insertion holes 126 and 128 are formed in the front-rear direction, as shown in FIG. It is formed in the same dimension in the pipe axis direction of the water discharge pipe 12).

  In this embodiment, the discharge end member 60 and the water discharge port member 52 are both connected to the water discharge pipe by the common fixing member 67 simply by pushing the fixing member 67 into the fixed hole 68 of the water discharge pipe 12 from outside and below the water discharge pipe 12. 12 can be fixed.

When the fixing member 67 is pushed upward in FIG. 3, the peripheral wall portion 70 of the fixing member 67 is fitted into the fixing hole 68, and the first fitting portion 74 of the fitting shaft portion 72 in the fixing member 67 is the water outlet member 52. And the second fitting portion 76 is fitted in the fitting hole 128 of the discharge end member 60, and the fixing member 67 is inserted into the water discharge pipe 12 in the fixing hole 68 by the concave and convex fitting. In addition, the water discharge port member 52 and the discharge end member 60 are fixed to the water discharge pipe 12, respectively.
At this time, as shown in FIG. 3, the water outlet member 52 and the discharge end member 60 are fixed to the water discharge pipe 12 in the front-rear direction, that is, in the tube axis direction and also in the left-right direction.

However, the gap between the insertion shaft portion 72 and the insertion holes 126 and 128 is small in the tube axis direction as shown in FIG. 3A and large in the left-right direction as shown in FIG. 3B. As such, the shapes of the insertion holes 126 and 128 are determined in advance.
The reason will be described later.

FIG. 8 shows a procedure for fixing the fixing member 67 to the water discharge pipe 12 in the fixing hole 68.
As shown in FIG. 8 (I), the fixing member 67 is inclined so that the fixed claw portion 110 is positioned on the upper side of the pair of claw portions 110 and 112, and the claw portion 110 First, the claw portion 110 is hooked on the edge of the fixing hole 68 so as to be inserted into the fixing hole 68 from the side.
At this time, since no particular resistance is generated when the claw portion 110 is inserted into the fixing hole 68 and hooked to the edge of the fixing hole 68, this can be easily performed with a weak force.

Next, as shown in FIG. 8 (II), the elastic claw 116 located on the side opposite to the claw portion 110 is elastically deformed and pushed into the fixing hole 68.
At this time, a force is required to elastically deform the elastic claw 116, specifically, the elastic piece 114, but the claw portion 112 of the elastic claw 116 has a small allowance for the edge of the fixing hole 68. The resistance at that time can be made as small as possible.
Further, since the claw portion 112 is formed with a cam surface 118 that serves as a guide when the elastic claw 116 is pushed in, the claw portion 112 can be pushed into the fixing hole 68 smoothly.

  When the fixing member 67 is pushed into the fixing hole 68 in this way, the pair of claw portions 110 and 112 are hooked on the edge of the fixing hole 68 in the pushed state, and the peripheral wall portion 70 is fitted in the fixing hole 68. The fixing member 67 is fixed to the water discharge pipe 12 by fitting in the state.

  At the same time, the fitting shaft 72 is fitted into the fitting hole 126 of the water outlet member 52 and the fitting hole 128 of the discharge end member 60, and the water outlet member 52 and the discharge end member 60 are connected to the water discharge pipe 12. It will be in a fixed state.

As shown in FIGS. 8 (I) and (II), when the fixing member 67 is pushed into the fixing hole 68 and fixed, the fixing member 67 is centered on the claw portion 110 previously hooked on the edge of the fixing hole. Then, it is pushed into the fixing hole 68 while slightly rotating.
At this time, the insertion shaft portion 72 also rotates slightly, so that the insertion hole 126 is formed with a large size in the left-right direction with respect to the first insertion portion 74 so as to enable the rotation movement. is there.

Similarly, the insertion hole 128 of the discharge end member 60 is also made larger in the left-right direction dimension than the second insertion portion 76.
For this reason, as shown in FIG. 3B and FIG. 8III, under the state where the fixing member 67 is fixed, between the first insertion portion 74 and the insertion hole 126 and the second insertion. A constant gap is generated in the left-right direction between the portion 76 and the fitting portion 128.
On the other hand, as shown in FIG. 3A, there is almost no gap between the insertion shaft portion 72 and the insertion holes 126 and 128 in the front-rear direction.
The dimensions of the insertion holes 126 and 128 are determined in advance.

For example, when the fixing member 67 is attached and fixed to the water discharge pipe 12 so that the pair of claws 110 and 112 are positioned in the front-rear direction in FIG. In this case, the spout member 52 and the discharge end member 60 are wobbled in the front-rear direction with respect to the water discharge pipe 12, and the assembly position thereof is in the front-rear direction. In some cases, the water outlet member 52 may be assembled at a position protruding forward from the tip of the water discharge pipe 12.
If it becomes so, this spout member 52 will be in the state which enters into a user's visual field, and the beauty | look of the front-end | tip part of the spout pipe 12 will be impaired.

  However, in this embodiment, the fixing member 67 is fixed to the water discharge pipe 12 so that the pair of claw portions 110 and 112 are positioned in the left-right direction. The end member 60 can be correctly assembled at a position set without backlash in the front-rear direction, and the aesthetic appearance of the distal end portion of the water discharge pipe 12 can be improved.

  When the fixing member 67 is fitted into the fixing hole 68 of the water discharge pipe 12, the place where the fixing member 67 should be inserted into the fixing hole 68 from the side of the fixing claw 110 is mistakenly changed to the side of the elastic claw 116 on the opposite side. Since it is considered that it is inserted into the fixing hole 68 from the side of the claw portion 112, the shape of the fixing member 67 and the fitting of the water discharge port member 52 and the discharge end member 60 so that this cannot be done here. The positions of the holes 126 and 128 are determined.

  Specifically, since the insertion shaft portion 72 of the fixing member 67 is arranged at a position eccentric from the center thereof, and the insertion holes 126 and 128 are arranged at the eccentric positions at positions corresponding thereto, the claw of the elastic claw 116 is provided. Even if the fixing member 67 is to be inserted into the fixing hole 68 from the side of the portion 112, it cannot be performed because the insertion shaft portion 72 cannot be inserted into the insertion holes 126 and 128.

  The pushing end of the fixing member 67 corresponds to the fixing hole 68 when the second insertion portion 76 hits the bottom of the insertion hole 128 of the discharge end member 60 and the partial taper surface 120 of the fixing member 67 corresponds to the fixing hole 68. It is defined by hitting the inclined surface 124.

  According to the present embodiment as described above, a dedicated housing for holding the discharge end member 60 in the retaining state, which has been conventionally required, can be eliminated, and the number of required parts can be reduced. Since each of the discharge end member 60 and the water discharge port member 52 is fixed to the water discharge pipe 12 by a common fixing member 67, they can be fixed to the water discharge pipe 12 at one place, In addition to simplification, workability during assembling work and maintenance work is improved, and the assembling and maintenance work can be easily performed.

  Further, according to the present embodiment, the fitting shaft portion 72 of the fixing member 67 is simply fitted into the fitting holes 126 and 128 of the water outlet member 52 and the discharge end member 60, and they are discharged by the common fixing member 67. It can be easily fixed and attached to the water pipe 12.

In the present embodiment, the fixed hole 68 is a hole having a larger diameter than the respective fitting holes 126 and 128 of the discharge end member 60 and the water discharge port member 52, and the fixed member 67 has a corresponding outer peripheral wall portion. 70 and the peripheral wall portion 70 is fitted into the fixing hole 68, so that the fixing strength of the fixing member 67 itself with respect to the water discharge pipe 12 can be increased. As a result, the discharge end member 60 and the water discharge port The strength of fixing the member 52 to the water discharge pipe 12 can be increased.
Further, the fixing member 67 can be fixed to the water discharge pipe 12 so as not to protrude from the water discharge pipe 12.

  Furthermore, according to this embodiment, the fixing member 67 can be easily fixed to the water discharge pipe 12 with a small force, while the fixing force of the fixing member 67 with respect to the water discharge pipe 12 and the reliability of fixing can be improved. Anxiety such as detachment from the water discharge pipe 12 can be eliminated.

  In the present embodiment, when the one claw portion 110 provided in the fixed state is hooked to the edge portion of the fixing hole 68, no strong pushing force is required, and accordingly, the claw portion 110 to the edge portion of the fixing hole 68 is not required. A large allowance can be secured.

  On the other hand, since the elastic claw 116 is provided only on one side in the radial direction, and further, the allowance to the edge of the fixing hole 68 of the claw portion 112 in the elastic claw 114 is further reduced. Can be done easily with a small force. Nevertheless, according to this embodiment, a large allowance of the claw portion 110 of the fixed side and the claw portion 112 of the elastic claw 116 to the entire fixing hole 68 edge portion can be secured, so the fixing member 67 is connected to the water discharge pipe 12. While being easily fixable, it is possible to satisfactorily prevent the fixing member 67 from being detached from the water discharge pipe 12.

  Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention can be used as a common fixing tool such as a screw or the like. It can be configured in various modified forms.

DESCRIPTION OF SYMBOLS 10 Automatic water tap 12 Water discharge pipe 38 Water supply tube 52 Water discharge port member 54 Insertion part 58 Water discharge port 60 Discharge end member 67 Fixing member 68 Fixing hole 70 Perimeter wall part 72 Insertion shaft part 74,76 Insertion part 110,112 Claw part 114 Elasticity Piece 116 elastic claw 126,128 insertion hole

Claims (6)

(a) a water discharge pipe, (b) a cylindrical water discharge port member that is mounted inside the front end of the water discharge pipe and forms a water discharge opening at the front end of the water channel in the water discharge pipe, and (c) the water discharge opening A discharge end member that is disposed and allows a water flow to pass through and controls a discharge pattern of water discharged from the water outlet,
The discharge end member is inserted into the tubular discharge port member as a housing, and each of the discharge end member and the discharge port member is fixed to the discharge pipe by a common fixing member. A water discharge device.   2. The fixing shaft according to claim 1, wherein the fixing member is provided with an insertion shaft portion, the fixing pipe penetrating the tube wall is provided in the water discharge pipe, and the insertion shaft portion is inserted into the discharge end member and the water discharge port member. An insertion hole is provided so as to overlap each other in a direction passing through the fixing hole and passing through the pipe wall of the water discharge pipe, and the insertion shaft portion of the fixing member passes through the fixing hole from the outside of the water discharge pipe. A water discharge device, wherein the water discharge port member and the discharge end member are respectively fitted into the insertion holes, and the discharge end member and the water discharge port member are fixed to the water discharge pipe. 3. The fixing hole according to claim 2, wherein the fixing hole is a hole having a larger diameter than the fitting hole of the discharge end member and the water discharge port member, and the fixing member is provided with a peripheral wall portion having a corresponding outer diameter. ,
The water discharge device, wherein the fixing member is attached to the water discharge pipe so that the peripheral wall portion is fitted in the fixing hole.   In Claim 3, the claw part hooked by the edge of the fixed hole is provided in the shape which protrudes in the diameter direction in the position where the peripheral wall part mutually opposed, and one claw part is The other claw portion is provided at the tip of the elastic piece in a state fixed to the peripheral wall portion, and the elastic piece and the claw portion at the tip constitute an elastic claw, and the elastic claw is pushed by pushing into the water discharge pipe. A water discharging device, wherein a claw portion of the elastic claw is hooked on the edge portion with elastic deformation of a piece.   5. The water discharging device according to claim 4, wherein the fixing member is attached in a state where the pair of claws are positioned in a left-right direction in a front view with respect to the water discharging pipe.   In any one of Claims 1-5, the said water outlet member has a cylindrical insertion part, and inserts this insertion part in the flexible water supply tube arrange | positioned inside the said water discharge pipe. A water discharging device connected to the water supply tube.

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