JP2019118442A - Nozzle device - Google Patents

Abstract

To provide a nozzle device which makes a regulation member for attaching a rotatably supported nozzle difficult to be removed.SOLUTION: The nozzle device is attached to a mounting hole formed in a bathtub wall, connected to a circulation pump on the outer side of the bathtub wall and jets the liquid provided by the circulation pump into the bathtub. The nozzle jets the liquid into the bathtub. A support member 24 rotatably supports the nozzle. A regulation member 20 regulates the motions in a detachment direction for removing the nozzle from the support member 24 in nozzle rotation axis directions and is provided in the side opposite to the detachment direction from the tip of the nozzle in the nozzle rotation axis directions.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a nozzle device for ejecting liquid into a bath.

  The nozzle arrangement used for so-called jet baths mixes air with the water supplied by the circulation pump or jets the air into the bath without mixing. For example, in Patent Document 1, a cylindrical nozzle holder provided inside a bathtub wall, a conical rotary nozzle main body rotatably accommodated in the nozzle holder, and a disk for holding the rotary nozzle main body in the nozzle holder And a nozzle cover having a The nozzle cover is screwed to the inner surface of the front opening side of the nozzle holder to cover the rotating nozzle body from the front side.

JP, 2013-132421, A

  In the technique disclosed in Patent Document 1, the nozzle cover is screwed to the nozzle holder so as to cover the front side of the rotating nozzle body, as a configuration to stop the rotating nozzle body from coming off the nozzle holder. Therefore, when the user touches the nozzle cover and rotates the nozzle cover unintentionally, the nozzle cover may be detached. Such a problem is not limited to the technique disclosed in Patent Document 1, but is a common problem in restricting the detachment of the nozzle from the supporting member that rotatably supports the nozzle by the regulating member, and its improvement is desirable Be

  The present invention has been made in view of such a situation, and its main object is to provide a nozzle device that makes it difficult for a restricting member that restricts the movement of the nozzle to come off.

  In order to solve the above problems, in a nozzle device according to an aspect of the present invention, a nozzle for ejecting liquid into a bath, a support member rotatably supporting the nozzle, and a nozzle supporting member in the rotational axis direction of the nozzle And a restricting member that restricts movement in the disengaging direction of disengaging. The restricting member is provided on the opposite side of the separating direction from the tip of the nozzle in the rotational axis direction of the nozzle.

  According to the present invention, since it becomes difficult for the user to come into contact with the regulating member that regulates the movement of the nozzle, the regulating member can not be easily detached.

It is a perspective view of a nozzle device of an example. It is an exploded view of a nozzle device. It is a longitudinal cross-sectional view of the nozzle apparatus of the state attached to the bathtub. It is a longitudinal cross-sectional view of the nozzle apparatus of the 2nd state from which a jet stream comes out of a 2nd jet nozzle. It is a perspective view of a nozzle device which omitted an outside connection member and a cover member. It is line segment AA sectional drawing of the nozzle apparatus shown in FIG. It is a figure for demonstrating the process of forming a welding part.

  FIG. 1 is a perspective view of a nozzle device 100 according to an embodiment. The nozzle device 100 is attached to a mounting hole formed in the bathtub wall, is connected to a circulation pump (not shown) outside the bathtub wall, and ejects the liquid supplied by the circulation pump into the bathtub. Further, the nozzle device 100 sucks in the liquid in the bath and sends it to the circulation pump.

  The nozzle device 100 includes an outer connecting member 1 connected to a circulation pump, a nozzle 2 having a first jet 21a and a second jet 22a for jetting a liquid into a bath, and a suction port 31 for sucking the liquid in the bath. And at least a cover member 3 having the The outer connecting member 1 has a supply port 12a to which the liquid is supplied from the circulation pump, and an outlet 13a to discharge the liquid to the circulation pump. The first jet 21a and the second jet 22a open into the bathtub.

  FIG. 2 is an exploded view of the nozzle device 100. In FIG. 2, the outer connecting member 1, the O-ring, the packing, and the like are shown from the nozzle device 100, and a member located inside the bathtub wall is shown. The nozzle device 100 further includes a restriction member 20, a support member 24 and a fixing member 15. Further, the nozzle 2 is configured of a nozzle head 21 and a nozzle body 22.

  The cover member 3 has an annular plate portion 3a, a side portion 3b and a side hole 3c. The side portion 3 b is formed in a cylindrical shape and has a plurality of side hole portions 3 c constituting the suction port 31. The annular plate portion 3 a protrudes radially inward from one end of the side portion 3 b, is an annular plate surface, and covers at least a part of the regulating member 20. The side holes 3c are formed through and allow passage of liquid in the bath.

  The restricting member 20 is annularly formed of a resin material, and is provided to attach the nozzle body 22 to the support member 24. The restriction member 20 has a first screw portion 20 a for screwing with the support member 24 and a notch portion 20 b in which a part of the first screw portion 20 a is cut. The first screw portion 20 a is spirally formed on the outer peripheral surface of the regulating member 20.

  Although details will be described later, the nozzle body 22 is rotatably supported by the support member 24 and has at least a second jet 22 a and an operation portion 23. The second jet outlets 22 a are formed in an arc shape, and provided in plural in the circumferential direction on the surface on the tip side of the nozzle body 22 facing the inside of the bath. A plurality of operation portions 23 are formed in a protruding shape so as to be separated in the circumferential direction on the surface on the tip side facing the inside of the bathtub of the nozzle body 22 and are gripped by the user's fingers when the nozzle body 22 is rotated. A plurality of operation units 23 are respectively provided between the plurality of second jet outlets 22 a.

  The rotation axis passing through the center of the nozzle body 22 is simply referred to as the rotation axis of the nozzle body 22, and the direction along the rotation axis of the nozzle body 22 is referred to as the rotation axis direction. Further, in the rotation axis direction, the direction from the outside to the inside of the bathtub wall is referred to as the rotation axis direction inward, and the direction from the inside to the outside of the bathtub wall is referred to as the rotation axis direction outward. The rotational axis direction of the nozzle main body 22 is along the direction perpendicular to the surface of the bathtub wall which is perpendicular to the bathtub wall on which the nozzle device 100 is provided. The nozzle body 22 is directed inward in the rotational axis direction along the direction in which the nozzle body 22 separates from the support member 24. The surface on the tip side facing the inside of the bathtub of the nozzle body 22 is the surface on the inner side in the rotation axis direction, and is the surface on the dismounting direction side of the nozzle body 22.

  The nozzle head 21 is formed in a cylindrical shape, and is provided so as to be able to change the angle of the center line of the first jet port 21a with respect to the rotation axis of the nozzle main body 22. It can be inclined and can adjust the direction of the jet stream which comes out of the 1st jet nozzle 21a. The nozzle 2 spouts the liquid supplied from the circulation pump from the first spout 21 a and / or the second spout 22 a inward in the rotational axis direction.

  The first jet nozzle 21 a is provided at the center of the end face of the nozzle device 100 viewed from the rotational axis direction, that is, at the center of the end face of the nozzle 2 and the cover member 3 facing the inside of the bath. The first jet nozzle 21a has high straightness and jets a spot jet whose spread is suppressed into the bathtub. The second jet port 22a has a total opening area larger than that of the first jet port 21a, is gentler than the first jet port 21a, and jets a wide jet, which is inclined in the radial direction from the rotation axis of the nozzle 2, into the bathtub. .

  The support member 24, which will be described in detail later, is formed of a resin material in a tubular shape, fixed to the fixing member 15, and rotatably supports the nozzle body 22 inserted inside. A plurality of through holes functioning as the suction port 31 are formed on the outer side surface of the support member 24.

  The fixing member 15 is cylindrical with both ends open, and has a flange 15a at one end. The fixing member 15 has a male screw formed on the outer peripheral surface of the other end, and the other end is inserted into a mounting hole provided in the bathtub wall and screwed into the outer connecting member 1. The nozzle device 100 is attached to the bathtub by sandwiching the edge of the attachment hole formed in the bathtub wall by the fixing member 15 and the outer connecting member 1. The flange 15a is provided with a protrusion 15b standing upright in the bath. The protrusions 15 b are circumferentially arranged to support the support member 24.

  FIG. 3 is a longitudinal sectional view of the nozzle device 100 in a state of being attached to the bathtub 9. The outer connecting member 1 has a body portion 11, a supply portion 12, a discharge portion 13 and an inner tubular portion 14. The body portion 11 is cylindrical and has a flange 11a at one end on the bathtub wall 9a side. Although the aspect which the flange 11a contact | abutted to the bathtub wall 9a of the bathtub 9 is shown in FIG. 3, packing may be provided between the flange 11a and the bathtub wall 9a.

  An inner tubular portion 14 is coaxially formed inside the body portion 11. The inner tubular portion 14 is open at one end on the bathtub 9 side, and the other end is continuous with the supply portion 12. The piping of the circulation pump is connected to the supply port 12 a located at the end of the supply unit 12. A liquid supply channel 17 is formed inside the inner tubular portion 14.

  A discharge flow passage 18 is formed inside the body portion 11 and outside the inner tubular portion 14. The discharge passage 18 is in communication with the discharge unit 13. The piping of the circulation pump is connected to the discharge port 13 a located at the end of the discharge unit 13. A flow passage 16 is connected to the inner tubular portion 14. The flow-through portion 16 is used to take in air when taking in external air and mixing air bubbles in the jet. In the embodiment, the open end of the flow-through portion 16 is closed and the case where air bubbles are not mixed in the jet will be described. However, when air bubbles are mixed in the jet, the open end of the flow-through portion 16 is opened In addition, an ejector may be provided in the inner tubular portion 14.

  The fixing member 15 is inserted into the mounting hole 9 b of the bath 9, screwed into a female screw formed on the inner peripheral surface of the body portion 11, and connected to the outer connecting member 1. A packing 34 for watertight sealing is sandwiched between the flange 15a and the bathtub wall 9a. A part of the discharge flow path 18 is formed inside the fixing member 15 and outside the support member 24.

  The support member 24 has a base portion 24a, a stepped portion 24b, an enlarged diameter portion 24c, a flange portion 24d, an annular portion 24e, a reduced diameter portion 24f, a recessed portion 24g, a second screw portion 24h and a through hole 24i. The circular tubular base 24 a is inserted into and fitted to the inner tubular portion 14 of the outer connecting member 1 and constitutes a part of the supply channel 17. An annular packing is disposed on the outer periphery of the base portion 24a, and is sealed in a watertight manner so that the supply passage 17 and the discharge passage 18 do not communicate with each other.

  The stepped portion 24 b is formed along the circumferential direction on the inner circumferential surface of the base portion 24 a, and forms a step that protrudes radially inward on the way from the outer side to the inner side of the rotation axis direction 42. The stepped portion 24b abuts on the end of the nozzle body 22 and functions as a stopper that restricts the movement of the nozzle body 22 outward in the rotational axis direction 42, that is, to the far side of the bathtub wall 9a.

  The enlarged diameter portion 24 c is provided so as to expand in diameter toward the inside of the bathtub from the end on the inner side of the rotational axis direction 42 of the base 24 a. The flange portion 24 d is formed by bending radially outward from the enlarged diameter portion 24 c. A second screw portion 24 h is formed on the tip end side of the enlarged diameter portion 24 c, that is, on the inner peripheral surface on the opening end side to the bathtub 9. The second screw portion 24 h is screwed with the first screw portion 20 a of the regulating member 20.

  The annular portion 24 e is folded back from the outer peripheral edge of the flange portion 24 d toward the outside of the bathtub wall 9 a, that is, the outer connecting member 1, and engages with the fixing member 15. The annular portion 24e abuts on the flange 15a and is supported by the projection 15b, and the projection 15b suppresses rattling in the radial direction. The support member 24 is fixed to the fixing member 15 by securing the annular portion 24 e and the protrusion 15 b or fastening the annular portion 24 e and the protrusion 15 b with a screw. The annular portion 24 e is provided with a plurality of through holes 24 i penetrating to the inside and the outside, and the inside of the bathtub 9 is in communication with the discharge flow path 18 by the through holes 24 i.

  The support member 24 has a reduced diameter portion 24f projecting inward from the inner surface of the base portion 24a located inside the bathtub wall 9a to the step 24b. In the support member 24, an outlet 17 a of the supply flow path 17 is formed at an inner eccentric position. The outlet 17a is formed in a circular shape, an oval shape, an elliptical shape, or the like with an inner diameter dimension of about half or slightly smaller than the inner diameter dimension of the base 24a, and is eccentric with respect to the central axis of the support member 24. In the same position. That is, the outlet 17a is an opening whose inner diameter of the base 24a is reduced to about half by the reduced diameter portion 24f. On the side of the outlet 17a, a recess 24g recessed toward the outside of the bathtub wall 9a is formed in the support member 24. When the nozzle body 22 rotates, foreign matter and dust contained in the flowing liquid enter the recess 24g, thereby reducing the biting between the rear end 22d of the nozzle body 22 and the outlet 17a.

  The nozzle body 22 has a second jet port 22a, a first inlet 22b, a second inlet 22c, a partition 22e, a regulated portion 22f, an outer cylindrical portion 22g, a flange 22h, and a tubular portion 22i. The flange portion 22 h is formed so as to be bent radially outward from the tip on the inner side in the rotation axis direction 42 of the tubular portion 22 i. A plurality of second jets 22a are formed in the flange portion 22h.

  The outer cylindrical portion 22g is bent so as to be folded back toward the outer connecting member 1 from the outer peripheral edge of the flange portion 22h. The regulated portion 22f protrudes outward in the radial direction from the outer cylindrical portion 22g. The regulated portion 22 f engages with the regulating member 20 to regulate the movement of the nozzle body 22 inward in the rotational axis direction of the nozzle body 22, that is, in the direction toward the inside of the bathtub 9. The movement in the direction toward the inside of the bathtub 9 is a movement in the direction from the outside to the inside of the bathtub wall 9a, and is a motion away from the inner surface of the bathtub wall 9a. The regulated portion 22 f receives the elastic force of the annular seal member 27 disposed on the support member 24, and is pressed against the support member 24 by the regulation member 20. As the regulated portion 22 f is pressed by the seal member 27, the water tightness of the flow path of the first jet 21 a and the flow path of the second jet 22 a is maintained.

  The nozzle body 22 has a partition wall 22e that divides the flow path toward the first jet 21a from the flow path toward the second jet 22a. A first inlet 22b and a second inlet 22c are formed at the rear end 22d of the nozzle body 22 by the partition wall 22e. The first inlet 22b communicates with the first jet 21a, and the second inlet 22c communicates with the second jet 22a. By the rotation of the nozzle body 22, one of the first inflow port 22b and the second inflow port 22c is in communication with the supply flow path 17, and the other is in a state of blocking communication.

  The nozzle device 100 shown in FIG. 3 is in a state in which the supply flow path 17 and the first inflow port 22b are in communication, and is in a first state in which a jet flow is emitted from the first jet port 21a. The first inlet 22 b is covered by the reduced diameter portion 24 f and the communication with the supply flow channel 17 is blocked. When the user holds the operation unit 23 and rotates the nozzle main body 22 from the first state in which the jet flow is emitted from the first jet nozzle 21a, the second state shown in FIG. 4 is obtained.

  FIG. 4 is a longitudinal sectional view of the nozzle device 100 in a second state in which a jet flow is emitted from the second jet nozzle 22a. As shown in FIG. 4, the first inlet 22 b is disconnected from the supply channel 17 by the reduced diameter portion 24 f, and the second inlet 22 c faces the outlet 17 a and is in communication with the supply channel 17. It is in the state. In the second state, the plurality of second jet outlets 22 a generate a wide jet flow that is inclined in a direction expanding in the radial direction from the central axis of the nozzle 2.

  The restricting member 20 is provided on the opposite side of the tip end direction of the nozzle main body 22 than the tip end of the nozzle 2 in the rotational axis direction 42 of the nozzle main body 22 (outside the rotational axis direction 42) It is provided so as not to stick out. That is, the restriction member 20 is positioned so as not to protrude into the bathtub from the surface of the nozzle body 22 exposed to the inside of the bathtub. The tip of the nozzle 2 is a portion located at the end of the nozzle 2 most on the side in the separating direction. Further, the restricting member 20 is at a position recessed from the operation portion 23 on the bathtub wall 9 a side. That is, the restricting member 20 is located outside the operating portion 23 in the rotational axis direction 42. Further, the restricting member 20 is located at an opening surface where the second jet port 22a is exposed in the bath, that is, at a position recessed from the surface of the flange portion 22h on the bath wall 9a side. As a result, it is difficult for the user's finger to hit the regulating member 20 when the nozzle body 22 is rotated, and it is difficult for the user to touch the regulating member 20 even if the user leans on the nozzle device 100 during bathing. Thus, the restriction member 20 screwed to the support member 24 can be configured to be difficult to be detached.

  The restriction member 20 is provided at a position overlapping the nozzle body 22 in the radial direction. Specifically, the restricting member 20 is disposed radially outside the outer cylindrical portion 22g of the nozzle main body 22, radially opposed to the outer cylindrical portion 22g, and the entire restricting member 20 overlaps the nozzle main body 22. The restricting member 20 is disposed on the radially outer side of the nozzle body 22 so as not to come out of the tip of the nozzle body 22 into the bath. Thereby, the dimension which protrudes from the bathtub wall 9a of the nozzle apparatus 100, ie, the dimension of the rotation axis direction 42 of the nozzle apparatus 100, can be made small. The inner surface of the regulating member 20 in the rotational axis direction 42 is provided so as to be substantially flush with the inner surface of the supporting member 24 in the rotational axis direction 42.

  By the way, when the regulating member 20 rotates as the nozzle body 22 is rotated, the screwing is released and the regulating member 20 is disengaged from the support member 24, and the nozzle body 22 may be detached from the support member 24. Therefore, the control member 20 is fixed to the support member 24 so as not to rotate with respect to the support member 24 in a state of being screwed to the support member 24. Thereby, it is possible to prevent the regulating member 20 from being pulled around and detached when the nozzle body 22 is rotated. For example, a rotation restricting member such as a screw or a pin is inserted into a screwing position of the control member 20 and the support member 24, or an adhesive is poured between the control member 20 and the support member 24 to fix the control member 20 and the support member 24. By welding or welding the restriction member 20 and the support member 24, the restriction member 20 screwed to the support member 24 can be prevented from rotating.

  FIG. 5 is a perspective view of the nozzle device 100 with the outer connecting member 1 and the cover member 3 omitted. In FIG. 5, the welded portion 40 is formed by welding the outer peripheral portion of the regulating member 20 and the inner peripheral portion of the supporting member 24, and the regulating member 20 and the supporting member 24 are fixed. It is made not to turn around by the rotation of. Since the outer peripheral portion of the restricting member 20 is welded, the nozzle main body 22 located on the inner peripheral side of the restricting member 20 is rotatably maintained.

  The welding portion 40 is formed on the back side of the hole 44. The hole 44 is located on the boundary between the first screw portion 20 a and the second screw portion 24 h, and the hole 44 is formed from the regulating member 20 to the support member 24. A part of the boundary between the first screw portion 20 a and the second screw portion 24 h forms a hole 44. The hole 44 is formed so as to dent the outer peripheral portion of the regulating member 20 and the inner peripheral portion of the support member 24 in the rotational axis direction 42, and is open in the separating direction of the nozzle body 22. A plurality of welds 40 may be formed on the restriction member 20 and the support member 24.

  FIG. 6 is a sectional view taken along line A-A of the nozzle device 100 shown in FIG. 5 and shows a state before forming the welding portion 40. As shown in FIG. At the welding scheduled position 40a, a first recess 20c in which the outer peripheral portion of the regulating member 20 is recessed and a second recess 24j in which the inner peripheral portion of the support member 24 is recessed are formed. The two recesses 24j are combined to form an insertion hole 45 for inserting the iron tip of the heating tool for welding. The insertion hole 45 is opened in the disengaging direction of the nozzle body 22, that is, in the rotational axis direction 42. The insertion hole 45 is formed by aligning the first recess 20 c and the second recess 24 j when the restriction member 20 is screwed to the support member 24 and attached.

  The restriction member 20 is formed with a notch 20b in which the first screw portion 20a at the welding planned position 40a is completely cut away in the rotational axis direction 42. On the other hand, the second screw portion 24 h of the support member 24 remains. Since the insertion hole 45 of the welding planned position 40 a includes the notch 20 b, the second screw portion 24 h is separated from the outer peripheral portion of the regulating member 20. The insertion hole 45 is located at the boundary between the first screw portion 20a and the second recess 24j. In other words, part of the boundary between the first screw portion 20a and the second recess 24j forms the insertion hole 45. The notch 20 b functions as a space in which the resin material melts and moves when the second screw portion 24 h is melted.

  FIG. 7 is a view for explaining the process of forming the welding portion 40. As shown in FIG. FIG. 7A shows a state in which the rod-like iron tip 50 located at the tip of the welding tool is moved toward the insertion hole 45 at the welding planned position 40 a in a heated state. The worker moves the iron tip 50 by aiming at the insertion hole 45 formed in a circular shape by the first recess 20 c and the second recess 24 j. The iron tip 50 may be moved not by the operator but by a manufacturing apparatus that holds the heating tool. The insertion hole 45 formed at the welding planned position 40 a is formed larger in diameter than the iron tip 50.

  FIG. 7B shows a state where the iron tip 50 is pushed into the welding planned position 40a. Although the bottom side of the insertion hole 45 is melted by the iron tip 50, since the diameter is larger than that of the iron tip 50, the side surface on the front side is not substantially melted. What is mainly melted by the iron tip 50 is the side surface of the notch 20b which is the second screw portion 24h and next to the first concave portion 20c on the back side. Since the resin material melted by the iron tip 50 is the back side of the first recess 20 c and the second recess 24 j, it is possible to suppress the melted resin material from coming out to the surface of the regulating member 20 and the support member 24.

  The regulated portion 22f of the nozzle body 22 is provided at a position not overlapping the welding planned position 40a in the rotational axis direction, and is positioned radially inward of the first recess 20c, ie, radially inward of the insertion hole 45 . Thereby, when the iron tip 50 is pushed in too much, the possibility that the iron tip 50 melts the controlled portion 22 f can be reduced.

  FIG. 7C shows a state in which the welding portion 40 is formed by removing the iron tip 50 from the insertion hole 45. Since the second screw portion 24 h is crushed at the welding portion 40, the regulating member 20 can not rotate with respect to the support member 24, and the welding portion 40 causes the outer peripheral portion of the regulating member 20 and the inside of the support member 24. The circumference is fixed. Thereby, it is possible to restrict the rotation of the restricting member 20 and prevent the restricting member 20 from being detached from the support member 24. By fixing the control member 20 to the support member 24 by the welded portion 40, the fixing can be easily performed without using other members. Further, as compared with the case where a metal screw is used to fix the restricting member 20 to the support member 24, it is possible to avoid the possibility of the screw slackening due to the difference in the coefficient of expansion of the metal material and the resin material.

  Since the first recess 20c, the notch 20b and the second recess 24j are formed at the welding scheduled position 40a, a space in which the molten resin is accumulated is secured. As a result, the welded portion 40 is formed on the back side of the hole 44, and the welded portion 40 can be suppressed from being formed so as to rise on the surfaces of the regulating member 20 and the support member 24. Note that a part of the notch 20b may remain after welding.

  As shown in FIG. 7A, the notch 20b is formed by cutting out the first screw portion 20a at the welding planned position 40a, and the second screw portion 24h at the welding planned position 40a is left. That is, the support member 24 is mainly melted by the heating by the iron tip 50. Thereby, when it fuse | melts with the iron tip 50, the control member 20 can deform | transform and the possibility of becoming resistance of rotation of the nozzle main body 22 can be reduced. Moreover, the resin material to be melted can be secured by leaving the second screw portion 24 h.

  It is to be understood by those skilled in the art that the embodiment is merely an example, and that various modifications can be made to the combination of each component, and such modifications are also within the scope of the present invention.

  Although the embodiment shows an aspect in which the restricting member 20 is formed in an annular shape, the present invention is not limited to this aspect. For example, the restricting member 20 may be formed in a C shape. By forming the regulating member 20 in a C-shape, the diameter of the regulating member 20 can be increased, and it can be easily attached to the outer periphery of the nozzle body 22. Moreover, you may comprise the limitation member 20 by several members of circular arc shape.

  Moreover, although the aspect which welds the control member 20 and the supporting member 24 by heating was shown in the Example, it is not restricted to this aspect. For example, the regulation member 20 may be fixed to the support member 24 by pouring an adhesive into the welding planned position 40 a. Alternatively, the restriction member 20 may be fixed to the support member 24 by screwing a screw into the insertion hole 45.

  Moreover, although the notch 20b is formed in the control member 20 and the aspect which leaves the 2nd screw part 24h of the supporting member 24 was shown in the Example, it is not restricted to this aspect. For example, a notch that cuts out the second screw portion 24 h of the support member 24 may be formed, and the first screw portion 20 a of the regulating member 20 may be left.

In the nozzle device according to the second aspect, in the first aspect, the restriction member may be provided at a position overlapping with the nozzle in the radial direction.
Thereby, the dimension of the nozzle apparatus which protrudes from a bathtub wall can be made small.

In the nozzle device of the third aspect, in the first aspect or the second aspect, the restriction member may be fixed to the support member so as not to rotate with respect to the support member.
Thereby, it is possible to prevent the regulating member from being pulled around and detached when the nozzle is rotated.

In the nozzle device according to the fourth aspect, in the third aspect, a part of the restriction member may be welded to the support member.
By fixing the restriction member to the support member by welding, the restriction member can be easily fixed without using other members.

In the nozzle device of the fifth aspect, in the third aspect or the fourth aspect, the restriction member has a first screw portion, and the support member has a second screw portion screwed to the first screw portion. The boundary portion between the first screw portion and the second screw portion may form at least a part, and a hole which opens in the separating direction may be formed.
The degree of tightening of the restricting member can be set by screwing the restricting member to the support member so as to align the positions of the first recess and the second recess. Further, it is possible to easily provide a configuration in which the rotation of the regulating member is restricted in the hole formed by combining the first recess and the second recess.

In the nozzle device according to the sixth aspect, in the fifth aspect, a welded portion in which the support member and the restriction member are welded may be formed on the side opposite to the separating direction of the hole.
The hole makes it easy to insert the tip of the heating tool at the time of welding processing, and it is possible to prevent the molten resin material from being raised on the front side of the regulation member and the support member.

The nozzle device according to a seventh aspect is the notch according to the fifth aspect or the sixth aspect, wherein the hole is formed by cutting any one of the first screw portion and the second screw portion along the rotation axis direction. May be included.
Thereby, the clearance space of the resin material fuse | melted at the time of welding process is securable.

  2 nozzle, 20 regulating member, 20a first screw portion, 20b notch, 24 support member, 24h second screw portion, 40 welded portion, 100 nozzle device.

Claims (7)

A nozzle that ejects the liquid into the bath;
A support member rotatably supporting the nozzle;
And a restricting member that restricts the movement of the nozzle in the separating direction in which the nozzle is separated from the support member in the rotational axis direction of the nozzle.
The nozzle device is characterized in that the regulating member is provided on the opposite side of the disengaging direction from the tip of the nozzle in the rotational axis direction of the nozzle.   The nozzle device according to claim 1, wherein the restriction member is provided at a position overlapping with the nozzle in the radial direction.   The nozzle device according to claim 1, wherein the restriction member is fixed to the support member so as not to rotate with respect to the support member.   The nozzle device according to claim 3, wherein a part of the restriction member is welded to the support member. The restriction member has a first screw portion,
The support member has a second screw portion screwed to the first screw portion,
The boundary part of the said 1st screw part and the said 2nd screw part forms an at least one part, Comprising: The hole part opened in the detachment direction is formed, The said Claim 3 or 4 characterized by the above-mentioned Nozzle device.   The nozzle device according to claim 5, wherein a welding portion in which the support member and the restriction member are welded is formed on the side of the hole opposite to the separating direction.   The nozzle device according to claim 5 or 6, wherein the hole portion includes a cutout portion in which any one of the first screw portion and the second screw portion is cut out along the rotation axis direction. .

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