JP6382750B2 - Water discharge device - Google Patents

Description

  The present invention relates to a water discharger capable of pulling a water supply hose from a water discharge pipe.

  2. Description of the Related Art Conventionally, automatic faucets that can automatically switch the presence or absence of water discharge using a sensor are widely known. A hose pull-out type has been proposed as this automatic faucet. In this automatic water faucet, a water discharge pipe is generally supported by a kitchen sink or the like, and a water supply hose is provided so as to be able to be pulled out from a front end opening of the water discharge pipe. A water discharge head is connected to the water supply hose, and the water discharge head is detachably held by a head mounting member that is fixed to the tip opening of the water discharge pipe (see Patent Document 1).

  In this type of automatic water faucet, a fixing tool for fixing the head mounting member to the water discharge pipe is normally embedded in the head mounting member by insert molding. A female screw hole for screwing a fastener such as a screw is formed in the fixture. The head mounting member is fixed to the water discharge pipe by fastening the water discharge pipe and the fixture with a fastener.

Japanese Patent No. 5247392

  By the way, a gap may be generated between the inner peripheral surface of the water discharge pipe and the head mounting member due to a manufacturing error or the like. In the conventional structure, if there is a gap between them, when the fastening amount of the fastener with respect to the fixture is increased, the fixture is pulled together with the head mounting member in the axial direction of the fastener. Therefore, the relative position of the head mounting member in the radial direction of the water discharge pipe changes depending on the tightening amount of the fastener, and it is difficult to place the head mounting member at a fixed position with respect to the water discharge pipe. When the positional displacement of the head mounting member with respect to the water discharge pipe increases, the positional displacement of the water discharge head held by the head mounting member also increases, resulting in a large step between the outer peripheral surface of the water discharge head and the outer peripheral surface of the water discharge pipe. It may cause a decrease in design.

  This invention is made | formed in view of such a subject, The objective is to provide the water discharging apparatus which can arrange | position a head mounting member in a fixed position with respect to a water discharging pipe easily irrespective of the fastening amount of a fastener.

In order to solve the above-described problem, a water discharge device according to an aspect of the present invention is connected to a water discharge pipe provided with an opening on the tip side, a water supply hose that can be pulled out from the opening, and a water supply hose, and is supplied from the water supply hose A head mounting member having a water discharge head capable of discharging the water to be discharged, a holding portion for detachably holding the water discharge head, and a storage portion formed at a position facing the inner peripheral surface of the water discharge pipe; The head mounting member is held in position with respect to the water discharge pipe by fastening the water discharge pipe and the fixing tool with the fastener, and the fixing tool is in the radial direction of the water discharge pipe with respect to the storage portion. It is provided so that relative displacement is possible.
According to this aspect, even when the tightening amount of the fastener with respect to the fixture is increased, the fixture is displaced in the radial direction of the water discharge pipe within the accommodating portion of the head mounting member. As a result, the head mounting member can be prevented from being pulled in the axial direction of the fastener, and the head mounting member can be easily placed at a fixed position with respect to the water discharge pipe regardless of the tightening amount of the fastener.

In the above-mentioned aspect, you may provide the elastic member interposed between the inner wall face of a accommodating part, and a fixing tool.
According to this aspect, when the head mounting member is about to be displaced relative to the water discharge pipe and the fixture, the elastic deformation amount of the elastic member increases as the relative displacement amount increases. As a result, the elastic restoring force applied from the elastic member to the head mounting member in the direction opposite to the displacement direction of the head mounting member is increased, so that the relative displacement of the head mounting member is effectively suppressed, and the head with respect to the water discharge pipe Shaking of the mounting member can be suppressed.

In the above-described aspect, the head mounting member may be held in a state of being pressed against a part of the water discharge pipe by an elastic restoring force applied in the tube axis direction of the water discharge pipe by the elastic member.
According to this aspect, the gap for allowing the head mounting member to rattle in the tube axis direction of the water discharge pipe can be eliminated, and the head mounting member can be removed from a part of the water discharge pipe by the elastic restoring force of the elastic member. Since it becomes difficult to separate, rattling of the head mounting member with respect to the water discharge pipe can be further suppressed.

In the above-mentioned aspect, the head mounting member further includes an electrical member disposed in the water discharge pipe, and the head mounting member has a support portion that holds the position of the electrical component in the water discharge pipe by supporting the electrical component member in the water discharge pipe. May be.
According to this aspect, since the head mounting member can be easily placed at a fixed position with respect to the water discharge pipe regardless of the tightening amount of the fastener as described above, the electrical member supported by the support portion of the head mounting member is also It becomes easy to arrange at a fixed position regardless of the tightening amount of the fastener.

  According to this invention, it becomes easy to arrange | position a head mounting member in a fixed position with respect to a water discharge pipe irrespective of the fastening amount of a fastener.

It is the schematic of the kitchen unit in which the water discharging apparatus which concerns on this embodiment is used. It is a perspective view which shows the water discharging apparatus which concerns on this embodiment. It is a perspective view which shows the state which removed the water discharge head which concerns on this embodiment from the water discharge pipe. It is side surface sectional drawing which shows the structure of the water discharging apparatus in the front end side part of the water discharging pipe which concerns on this embodiment. It is side surface sectional drawing of the water discharging pipe which concerns on this embodiment. It is the sectional view on the AA line of FIG. It is the perspective view which looked at the head mounting member which concerns on this embodiment from the bending inner side of the water discharge pipe. It is an enlarged view of the location which the code | symbol B of FIG. 4 shows. It is the figure which looked at the accommodating part from the direction D of FIG. It is a perspective view of the fixing tool concerning this embodiment. It is a figure which shows the state which removed the fastener from the fixing tool which concerns on this embodiment. It is a figure which shows the state which inserted the axial part of the fastener in the hole of the fixing tool which concerns on this embodiment. It is a figure which shows the elastic restoring force provided by the O-ring with respect to the head mounting member which concerns on this embodiment.

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

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

  FIG. 2 is a perspective view showing the water discharge device 10. The water discharge device 10 is an automatic faucet. The water discharge device 10 includes a support member 14 fixed to a sink 102 (not shown in the figure), a water discharge pipe 16 supported to the sink 102 by the support member 14, and a head mounting member 28 (not shown) described later. And a water discharge head 18 that is detachably held on the water discharge pipe 16. FIG. 3 is a perspective view showing a state in which the water discharge head 18 is removed from the water discharge pipe 16. The water discharge device 10 further includes a water supply hose 20 that can be pulled out from the water discharge pipe 16 when the water discharge head 18 is removed from the head mounting member 28.

  FIG. 4 is a side cross-sectional view showing the configuration of the water discharge device 10 at the tip side portion of the water discharge pipe 16. The water discharge device 10 further includes a first sensor member 24 and a second sensor member 26 arranged in the water discharge pipe 16, and a head mounting member 28 arranged in the water discharge pipe 16. The head mounting member 28 is held at a position relative to the water discharge pipe 16 by using a fixture 42 and a fastener 44 described later. As will be described later with reference to FIG. 8 and the like, the water discharge device 10 has one feature in the peripheral structure such as the fixture 42, but other features will be described first.

  FIG. 5 is a side sectional view of the water discharge pipe 16. As shown in FIGS. 3 and 5, the water discharge pipe 16 includes a main pipe portion 16 a in which an internal space continuous along the pipe axis direction of the water discharge pipe 16 is formed, and an intermediate portion of the main pipe portion 16 a to the tip side. At least a part of the bulging portion 16b formed on the radially outer side of the main pipe portion 16a. The water discharge pipe 16 is a cast article made of a metal, and the bulging portion 16b is formed by bulging, but may be manufactured by resin molding or the like.

  As shown in FIG. 5, the main pipe portion 16 a has a so-called gooseneck shape that is curved in an inverted U shape so as to be folded downward from the upper side toward the distal end side. A first opening 16d is provided at the distal end of the main pipe portion 16a. In the main pipe portion 16a, a first window portion 16e and a second window portion 16f are formed on the back side from the first opening portion 16d. The bulging portion 16b is formed so as to bulge from the main pipe portion 16a toward the bent inner side (lower side in the figure). The bulging portion 16b is formed in a hollow shape so as to communicate with the inside of the main pipe portion 16a in a range from the intermediate portion of the main pipe portion 16a to the distal end side. A second opening 16g is provided at the tip of the bulging portion 16b.

  The main pipe portion 16a is provided with a distal end side portion 16h protruding from the bulging portion 16b toward the distal end side of the water discharge pipe 16. The distal end portion 16h is formed with a third opening 16i having a shape in which a part in the circumferential direction of the main pipe portion 16a is cut out. When the sensor members 24 and 26, the head mounting member 28, and the like are arranged inside the water discharge pipe 16, they are put in and out through the openings 16d, 16g, and 16i.

  Returning to FIG. 4, the water supply hose 20 is for supplying water to the water discharge head 18. The water supply hose 20 is inserted into the water discharge pipe 16 and can be pulled out from the second opening 16 g of the water discharge pipe 16. The water supply hose 20 is made of a flexible material. The downstream end 20 a of the water supply hose 20 is connected to the water discharge head 18. An upstream end (not shown) of the water supply hose 20 is drawn from the proximal end of the water discharge pipe 16 to the back side of the sink 102 and connected to an electromagnetic valve (not shown). The electromagnetic valve closes or opens based on a signal output from a control unit described later, and switches whether water is supplied to the water discharge head 18.

  The water discharge head 18 is provided with a water discharge port 18 a on the tip side opposite to the connection position of the water supply hose 20. A water passage 18 b is formed inside the water discharge head 18. The water discharge head 18 can discharge water supplied from the water supply hose 20 through the water passage 18b from the water discharge port 18a. The outer peripheral surface of the water discharge head 18 is formed so as to be flush with the outer peripheral surface of the bulging portion 16 b of the water discharge pipe 16 when held by the head mounting member 28.

  The first sensor member 24 is mounted on a sensor mounting portion 28 a provided on the head mounting member 28. The second sensor member 26 is supported by a support portion 28 b (described later) of the head mounting member 28.

  The first sensor member 24 is mounted with a first object detection sensor (not shown) for detecting the presence or absence of an object to be detected at the distal end side in the tube axis direction of the water discharge pipe 16. The second sensor member 26 includes a second object detection sensor (not shown) for detecting the presence / absence of an object to be detected outside the second window portion 16f of the water discharge pipe 16, and a control for opening / closing control of an electromagnetic valve. Part (not shown) is mounted. The first object detection sensor is an infrared distance measuring sensor, and the second object detection sensor is an infrared light amount sensor. That is, both are non-contact sensors. Each object detection sensor detects the presence or absence of an object to be detected using infrared light as detection light, and outputs a signal indicating the detection result to the control unit. The control unit is configured by a microcomputer or the like mounted on the circuit board. The control unit controls the water discharging operation of the water discharging head 18 by controlling opening and closing of the electromagnetic valve using a signal output from the first object detection sensor or the like. The second sensor member 26 is equipped with an on / off switch 38 for switching the presence or absence of control of the first object detection sensor by the control unit.

  The second sensor member 26 is an elongated body that is long and flat in the tube axis direction of the water discharge pipe 16, and has a shape that is curved according to the curve of the main pipe portion 16 a of the water discharge pipe 16. 6 is a cross-sectional view taken along line AA in FIG. In the drawing, the entire second sensor member 26 is hatched and the internal structure is omitted. As shown in FIGS. 4 and 6, the second sensor member 26 is provided with a fitting portion 26 c that is fitted into the second window portion 16 f of the water discharge pipe 16. The exposed surface 26 d of the fitting portion 26 c of the second sensor member 26 is formed so as to be flush with the outer peripheral surface of the main pipe portion 16 a of the water discharge pipe 16. As shown in FIG. 4, a part of the on / off switch 38 is fitted into the first window portion 16 e of the water discharge pipe 16. The second sensor member 26 is positioned in the circumferential direction along with the pipe axis direction of the water discharge pipe 16 by fitting the on / off switch 38 into the first window portion 16e and fitting the fitting portion 26c into the second window portion 16f. .

  FIG. 7 is a perspective view of the head mounting member 28 viewed from the inside of the water discharge pipe 16 bent. The head mounting member 28 is an integrally molded product made of resin, and a support portion 28b, a holding portion 28g and the like which will be described later are integrally molded. As shown in FIGS. 4 and 7, the head mounting member 28 includes a first end surface portion 28 c that closes the first opening portion 16 d of the water discharge pipe 16, a peripheral surface portion 28 d that closes the third opening portion 16 i of the water discharge pipe 16, and And a second end face portion 28e that closes the second opening 16g of the water discharge pipe 16. A sensor window portion 28f into which a part of the first sensor member 24 is fitted is formed on the first end surface portion 28c.

  The second end surface portion 28e is provided with a holding portion 28g that detachably holds the water discharge head 18 by a snap fit method or the like. The holding part 28g is provided so as to protrude outward from the second opening 16g of the water discharge pipe 16. The holding part 28g is formed in a cylindrical shape, and the inside and outside of the water discharge pipe 16 are communicated with each other through the inside. The water supply hose 20 is inserted into the holding portion 28g. As shown in FIG. 4, the water discharge head 18 is provided with a held portion 18 c at a base end portion opposite to the water discharge port 18 a. The held portion 18c is formed in a cylindrical shape, and the holding portion 28g of the head mounting member 28 is inserted therein.

  As shown in FIGS. 4 and 6, the head mounting member 28 has a support portion 28 b provided in the water discharge pipe 16. The support portion 28b has a plate shape that bends according to the curvature of the main pipe portion 16a. The support portion 28b is disposed on the opposite side of each of the window portions 16e and 16f with respect to the second sensor member 26, and contacts the second sensor member 26 so as to make surface contact. The support portion 28 b holds the position of the second sensor member 26 in the water discharge pipe 16 by supporting the second sensor member 26 so as to push up the second sensor member 26 from the radially inner side in the water discharge pipe 16.

  The head mounting member 28 has legs 28 i provided in the water discharge pipe 16. The leg portion 28 i extends from the support portion 28 b toward the side opposite to the second sensor member 26. The support portion 28 b extends so as to cross along the width direction of the second sensor member 26 in a cross section perpendicular to the tube axis direction of the water discharge pipe 16 (hereinafter, simply referred to as a cross section of the water discharge pipe 16). The distal end portion 28 ia of the leg portion 28 i extends in the circumferential direction so as to make surface contact with the inner peripheral surface of the water discharge pipe 16 in the cross section of the water discharge pipe 16. The head mounting member 28 is disposed in the water discharge pipe 16 by contact between the both ends in the width direction of the support portion 28b and the tip end portion 28ia of the leg portion 28i and the water discharge tube 16, or between the support portion 28b and the second sensor member 26. Positioned in the circumferential direction and radial direction.

  FIG. 8 is an enlarged view of a portion indicated by a symbol B in FIG. The head mounting member 28 has a housing portion 28k formed at a position facing the inner peripheral surface of the water discharge pipe 16 in the vicinity of the second opening 16g of the water discharge pipe 16. The accommodating portion 28k is formed at a position facing the bent inner portion of the bulging portion 16b of the water discharge pipe 16. The accommodating portion 28k is a through hole formed so as to be recessed in a direction away from the inner peripheral surface of the water discharge pipe 16.

  FIG. 9 is a view of the accommodating portion 28k viewed from the direction D in FIG. As shown in FIGS. 8 and 9, the housing portion 28 k includes an inlet portion 28 ka provided on the inner peripheral surface side of the water discharge pipe 16 and a rotation restricting portion 28 kb provided on the inner side of the inlet portion 28 ka. A stepped portion facing the inlet portion 28ka is provided between the inlet portion 28ka and the rotation restricting portion 28kb. The inlet portion 28ka has a circular cross section orthogonal to the axial direction of the central axis of the housing portion 28k, and the rotation restricting portion 28kb is formed in a quadrangular shape.

  As shown in FIG. 8, the water discharge device 10 includes a fixture 42 accommodated in the accommodating portion 28k. The fixture 42 is made of metal. The fixture 42 is provided so as to be relatively displaceable in the radial direction of the water discharge pipe 16 with respect to the accommodating portion 28k.

  FIG. 10 is a perspective view of the fixture 42. As shown in FIGS. 8 and 10, the fixture 42 includes a head portion 42a disposed in the inlet portion 28ka and a regulated portion 42b disposed in the rotation regulating portion 28kb. The head portion 42a has a circular cross-sectional shape that is orthogonal to the axial direction of the central axis of the accommodating portion 28k. The regulated portion 42b has a quadrangular cross-sectional shape perpendicular to the axial direction of the accommodating portion 28k.

  FIG. 11 is a view showing a state where a fastener 44 (described later) is removed from the fixture 42. A hole portion 42d is formed in the end surface portion of the head portion 42a of the fixture 42. The hole 42 d is a bottomed hole formed so as to be recessed in a direction away from the inner peripheral surface of the water discharge pipe 16. A female screw portion 42da is formed in the hole portion 42d at an intermediate portion in the axial direction of the central axis Lc1 of the hole portion 42d. As shown in FIG. 8, a fastener 44 such as a screw is screwed into the female screw portion 42da.

  As shown in FIGS. 8 and 10, a groove-shaped storage portion 42 c that is recessed inward in the radial direction is formed on the outer peripheral surface of the head portion 42 a at the intermediate portion in the axial direction of the central axis Lc 1 of the hole portion 42 d. The The O-ring 46 is stored in the storage unit 42c. The O-ring 46 is an elastic member made of a material having elasticity such as resin. The O-ring 46 is annularly interposed between the inner wall surface of the accommodating portion 28k of the head mounting member 28 and the fixture 42. The O-ring 46 is disposed so as to be located on both the distal end side and the back side in the tube axis direction of the water discharge pipe 16 with respect to the fixture 42.

  An insertion hole 28 j is formed in the bulging portion 16 b of the water discharge pipe 16 at a position corresponding to the housing portion 28 k and the fixture 42 of the head mounting member 28. The insertion hole 28j is for inserting the fastener 44 from the outside to the inside of the water discharge pipe 16. The insertion hole 28j is formed in a tapered shape so that the diameter decreases from the outer side of the water discharge pipe 16 toward the inner side.

  The fastener 44 has a shaft portion 44a where a screw thread is formed, and a head portion 44b provided on one end side of the shaft portion 44a. The head 44b is formed in a taper shape so that the diameter decreases as it goes from the outside to the inside of the water discharge pipe 16. The head 44b of the fastener 44 is provided so as to fit inside the outer opening edge of the insertion hole 28j.

  In the fixing tool 42 described above, when the fastener 44 is screwed into the female thread portion 42da of the fixing tool 42, the engagement of the restricted portion 42b of the fixing device 42 and the rotation restricting portion 28kb of the head mounting member 28 results in the engagement of the fastener 44. The rotation of the fixing tool 42 around the axial direction is restricted, and the fastener 44 can be screwed into the female screw portion 42da.

  The head mounting member 28 is held in a position relative to the water discharge pipe 16 by fastening the water discharge pipe 16 and the fixture 42 with the fastener 44. Below, the state of the fixing tool 42 etc. before and after being fastened by the fastening tool 44 will be described.

  When the fastener 44 is removed from the fixture 42, the O-ring 46 is held in an elastically deformed state between the accommodating portion 28k of the head mounting member 28 and the fixture 42 as shown in FIG. As a result, the fixture 42 is held against the accommodating portion 28k of the head mounting member 28 by the elastic restoring force of the O-ring 46, so that it can be handled integrally with the head mounting member 28.

  When the head mounting member 28 is pushed into the water discharge pipe 16 from the openings 16d, 16g, and 16i to the back side, the hole 42d of the fixture 42 is located more than the central axis Lc2 of the insertion hole 28j of the water discharge pipe 16. The central axis Lc1 of the water discharge pipe 16 is provided so as to be shifted from the distal end side. The shaft portion 44a of the fastener 44 is screwed into the female screw portion 42da of the fixture 42 in this state. At this time, the axis passing through the shaft portion 44a of the fastener 44 is disposed at a position that matches the central axis Lc1 of the fixture 42 as shown in FIG.

  When the fastener 44 is tightened in this state, the head portion 44b of the fastener 44 comes into contact with the inner wall surface of the insertion hole 28j. At this time, since the head portion 44b of the fastener 44 and the insertion hole 28j are formed in a taper shape, the axis passing through the shaft portion 44a of the fastener 44 becomes the center axis of the insertion hole 28j as the fastening amount of the fastener 44 increases. The fastener 44 is displaced together with the fixture 42 in the direction E approaching Lc2. This direction E is a direction toward the far side in the tube axis direction of the water discharge pipe 16.

  As a result, as shown in FIG. 8, the O-ring 46 is compressed in the tube axis direction between the inner wall surface of the housing portion 28 k on the back side in the tube axis direction with respect to the fixture 42 and the fixture 42. Is held in an elastically deformed state. The elastic deformation amount of the O-ring 46 is greater in the portion on the far side than the portion on the distal end side in the tube axis direction with respect to the fixture 42. As a result, an elastic restoring force is applied to the head mounting member 28 in the direction F1 toward the inner side in the tube axis direction by the O-ring 46. In other words, a part of the O-ring 46 is elastically deformed so as to be compressed in the tube axis direction by fastening the water discharge pipe 16 and the fixing tool 42 with the fastening tool 44, and the O-ring 46 is formed on the head mounting member 28. Thus, an elastic restoring force is applied in the tube axis direction of the water discharge tube 16.

  Here, as shown in FIG. 5, a displacement regulating portion 16j is provided on the inner side of the first opening portion 16d of the main pipe portion 16a on the back side from the front end surface. The displacement restricting portion 16j is a step surface provided in the main pipe portion 16a so as to face the distal end side of the water discharge pipe 16.

  As shown in FIG. 13, the head mounting member 28 is first applied to the displacement restricting portion 16j of the water discharge pipe 16 by the elastic restoring force applied in the direction F1 toward the inner side in the tube axis direction by the O-ring 46 described above. The position with respect to the water discharge pipe 16 is maintained in a state where the back surface of the end surface portion 28c is pressed.

The effect by the above water discharging apparatus 10 is demonstrated.
The fixing tool 42 is provided so as to be relatively displaceable in the radial direction of the water discharge pipe 16 with respect to the housing portion 28 k of the head mounting member 28. Therefore, even when the fastening amount of the fastener 44 with respect to the fixture 42 is increased, the fixture 42 is displaced in the radial direction of the water discharge pipe 16 in the accommodating portion 28k of the head mounting member 28. As a result, the head mounting member 28 can be prevented from being pulled in the axial direction of the fastener 44, and the head mounting member 28 can be easily placed at a fixed position with respect to the water discharge pipe 16 regardless of the tightening amount of the fastener 44.

  Since the head mounting member 28 is easily disposed at a fixed position with respect to the water discharge pipe 16, the water discharge head 18 held by the head mounting member 28 is also positioned at a fixed position with respect to the water discharge pipe 16 regardless of the tightening amount of the fastener 44. It becomes easy to arrange in. As a result, the outer peripheral surface of the water discharge head 18 and the outer peripheral surface of the bulging portion 16b of the water discharge pipe 16 are easily connected to each other without any step in the tube axis direction, and good design and cleaning properties are easily obtained.

  Further, since the head mounting member 28 can be easily placed at a fixed position with respect to the water discharge pipe 16, the second sensor member 26 supported by the support portion 28 b of the head mounting member 28 is also independent of the tightening amount of the fastener 44. It becomes easy to arrange at a fixed position with respect to the water discharge pipe 16. Thereby, it becomes easy to connect the exposed surface 26d of the 2nd sensor member 26 and the outer peripheral surface of the main pipe part 16a of the water discharge pipe 16 without level | step difference, and it becomes easy to obtain favorable design property and cleaning property.

  Further, an O-ring 46 is interposed between the accommodating portion 28 k of the head mounting member 28 and the fixture 42. Therefore, when the head mounting member 28 is about to be displaced relative to the water discharge pipe 16 and the fixture 42, the elastic deformation amount of the O-ring 46 increases as the relative displacement amount increases. As a result, the elastic restoring force applied to the head mounting member 28 from the O-ring 46 in the direction opposite to the displacement direction of the head mounting member 28 is increased, so that the relative displacement of the head mounting member 28 is effectively suppressed, Shaking of the head mounting member 28 with respect to the water discharge pipe 16 can be suppressed.

  In particular, when the head mounting member 28 is disposed in the water discharge pipe 16, the head mounting member 28 is easily inserted in the tube axis direction of the water discharge pipe 16 because it is inserted from the openings 16 d, 16 g and 16 i of the water discharge pipe 16 to the back side. . In this regard, according to the present embodiment, the O-rings 46 are disposed on both sides of the water discharge pipe 16 in the pipe axis direction with respect to the fixture 42, so that the head mounting member 28 in the pipe axis direction with respect to the water discharge pipe 16 is arranged. There is a great advantage in that rattling can be suppressed by the O-ring 46.

  Further, the head mounting member 28 is held in a state of being pressed against the displacement restricting portion 16 j of the water discharge pipe 16 by the elastic restoring force of the O-ring 46. Therefore, the gap allowing the rattling of the head mounting member 28 in the tube axis direction of the water discharge pipe 16 can be eliminated, and the head mounting member 28 is separated from the displacement restricting portion 16j by the elastic restoring force of the O-ring 46. Since it becomes difficult, rattling of the head mounting member 28 with respect to the water discharge pipe 16 can be further suppressed.

  Further, since the head mounting member 28 has the support portion 28b in addition to the holding portion 28g, the following advantages are obtained. In the structure of the conventional patent document 1, the head mounting member that holds the water discharge head and the sensor holder that supports the sensor member are configured separately. Therefore, in order to take out the sensor member from the water discharge pipe for maintenance of the water discharge apparatus, it is necessary to take out the sensor holder from the water discharge pipe using a special tool after taking out the head mounting member from the water discharge pipe. For this reason, an extra work man-hour is required, and a complicated work of inserting a tool from the opening of the water discharge pipe is required.

  In this regard, according to the present embodiment, the head mounting member 28 integrally includes the support portion 28b in addition to the holding portion 28g. Therefore, when the second sensor member 26 is taken out from the water discharge pipe 16 and the holding portion 28g is grasped and pulled, the entire head mounting member 28 can be taken out from the water discharge pipe 16 through the openings 16d, 16g, and 16i. For this reason, it is possible to reduce the number of work steps required for taking out the second sensor member 26 and to eliminate the need for a special tool, so that good workability can be obtained.

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

  The water discharge device 10 may be used for facilities installed in buildings, ships, and the like, and may be used for a washstand, a hand-washer, a bathroom, and the like in addition to a kitchen. Moreover, the sink 102 was illustrated as a base | substrate with which the water discharge pipe 16 is supported. The base is exemplified by a counter in a kitchen or a washstand, but also includes a wall member that divides the outside of equipment such as a kitchen.

  Although the water discharge pipe | tube 16 demonstrated the example which has the bulging part 16b in addition to the main pipe part 16a, it does not need to have the bulging part 16b. In this case, the water supply hose 20 may be configured to be drawable through the first opening 16d of the main pipe portion 16a, and the accommodating portion 28k of the head mounting member 28 may be provided in the vicinity of the first opening 16d. Moreover, although the main part 16a of the water discharge pipe 16 demonstrated the example formed in gooseneck shape, you may form in linear form.

  The head mounting member 28 has been described with an example in which the holding portion 28g and the support portion 28b are integrated, but these may be separate. Moreover, although the accommodating part 28k of the head mounting member 28 demonstrated the example provided in the vicinity of the 2nd opening part 16g, the position is not restricted to this.

  Further, the head mounting member 28 may be configured to include at least the holding portion 28g and the accommodating portion 28k, and may be configured not to include the support portion 28b and the leg portion 28i. When the head mounting member 28 is configured as described above, the water discharge device 10 may have a structure without both the first sensor member 24 and the second sensor member 26, or may have a structure with only one of them. When the structure includes only the first sensor member 24, the sensor mounting portion 28a may be provided on the head mounting member 28 and the support portion 28b may not be provided. In the case of a structure having only the second sensor member 26, the head mounting member 28 may be provided with the support portion 28b and not the sensor mounting portion 28a.

  The O-ring 46 has been described as an example of an elastic member interposed between the inner wall surface of the accommodating portion 28k of the head mounting member 28 and the fixture 42. The shape of the elastic member is not limited to an annular shape, and may be a shape in which a part of the annular body in the circumferential direction is cut away. Further, the relative position of the elastic member with respect to the fixture 42 is not particularly limited from the viewpoint of suppressing rattling of the head mounting member 28 with respect to the water discharge pipe 16. However, from the viewpoint of suppressing rattling of the head mounting member 28 in the pipe axis direction of the water discharge pipe 16, it is preferable that the head mounting member 28 is disposed at least on the distal end side or the back side in the pipe axis direction with respect to the fixture 42. .

  An example in which the head mounting member 28 is held in a state of being pressed against the displacement restricting portion 16j of the water discharge pipe 16 by an elastic restoring force applied by the elastic member toward the inner side of the water discharge pipe 16 in the tube axis direction. explained. The head mounting member 28 may be held in a state in which the head mounting member 28 is pressed against a part of the water discharge pipe 16 by an elastic restoring force applied to the distal end side rather than the back side in the tube axis direction by the elastic member. In this case, the displacement restricting portion 16j of the water discharge pipe 16 against which the head mounting member 28 is pressed may be a stepped surface provided so as to face the back side rather than the distal end side of the water discharge pipe 16.

  The rotation restricting portion 28 kb of the head mounting member 28 restricts the rotation of the fixing tool 42 by engagement with the restricted portion 42 b of the fixing tool 42 when the fixing tool 42 tries to rotate around the axial direction of the fastener 44. Any shape can be used. From this point of view, the rotation restricting portion 28 kb may have a polygonal shape such as a triangular shape in addition to a rectangular shape, or an elliptical shape other than a perfect circular shape. That is, the rotation restricting portion 28 kb may have a non-circular shape such as a polygonal shape or an elliptical shape.

  The second sensor member 26 has been described as an electrical member whose position in the water discharge pipe 16 is held by the support portion 28 b of the head mounting member 28. The electrical component may be an electrical component used for controlling the water discharge operation of the water discharge head 18, and includes a switch member on which an on / off switch is mounted in addition to a sensor member on which an object detection sensor is mounted. .

  The fastener 44 may be anything that can fasten the water discharge pipe 16 and the fixture 42. The fastener 44 may be, for example, a bolt or a combination of a stud bolt and a nut other than a screw.

DESCRIPTION OF SYMBOLS 10 ... Water discharging apparatus, 16 ... Water discharging pipe, 16d ... Opening part, 18 ... Water discharging head, 18a ... Water discharging port, 20 ... Water supply hose, 20a ... Downstream end part, 28 ... Head mounting member, 28b ... Support part, 28g ... Covered Mounting part, 28k ... accommodating part, 42 ... fixing tool, 44 ... fastener, 46 ... O-ring (elastic member).

Claims (4)

A water discharge pipe provided with an opening on the tip side;
A water supply hose that can be pulled out from the opening;
A water discharge head connected to the water supply hose and capable of discharging water supplied from the water supply hose;
A head mounting member having a holding part for detachably holding the water discharge head, and a storage part formed at a position facing the inner peripheral surface of the water discharge pipe;
A fixture housed in the housing section,
The head mounting member is held at a position relative to the water discharge pipe by fastening the water discharge pipe and the fixture with a fastener.
The water discharging device according to claim 1, wherein the fixture is provided so as to be relatively displaceable in the radial direction of the water discharging pipe with respect to the housing portion.   The water discharging device according to claim 1, further comprising an elastic member interposed between an inner wall surface of the housing portion and the fixture.   3. The head mounting member is held in a state of being pressed against a part of the water discharge pipe by an elastic restoring force applied by the elastic member in a pipe axis direction of the water discharge pipe. The water discharging apparatus described in 1. An electrical component disposed in the water discharge pipe,
4. The head mounting member has a support portion that holds the position of the electrical component in the water discharge pipe by supporting the electrical component in the water discharge pipe. 5. The water discharging apparatus described in 1.

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