JP7153449B2 - Nozzle device - Google Patents

Description

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

A nozzle device used in a so-called jet bath mixes air with water supplied by a circulation pump, or jets air into the bathtub without mixing. For example, Patent Document 1 discloses a cylindrical nozzle holder provided inside a bathtub wall, a conical rotary nozzle body rotatably accommodated in the nozzle holder, and a disk holding the rotary nozzle body in the nozzle holder. A nozzle arrangement is disclosed that includes a shaped nozzle cover.

JP 2013-132421 A

In a nozzle device that has a rotating body and a fixed body that rotatably supports the rotating body, and that either one of the rotating body and the fixed body is a nozzle, it is desirable that the rotation of the rotating body can be easily operated by the user. . For example, if a rotating body is provided with a small protrusion and the user is forced to pick up and operate the protrusion, it may be difficult to operate.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and a main object of the present invention is to provide a nozzle device that allows a user to easily rotate a rotatably provided rotor.

In order to solve the above problems, a nozzle device according to one aspect of the present invention includes a rotating body, a fixed body that rotatably supports the rotating body, and a cover member that covers at least one of the rotating body and the fixed body. . Either the rotating body or the fixed body has a nozzle for ejecting liquid into the bath. The cover member is provided rotatably integrally with the rotating body.

According to the present invention, the rotating body can be easily rotated by the user rotating the cover member.

It is a perspective view of a nozzle device of an example. 1 is an exploded view of a nozzle device; FIG. It is a longitudinal cross-sectional view of the nozzle device attached to the bathtub. It is a longitudinal cross-sectional view of the nozzle device in the second state in which a jet flows out from the second ejection port. It is a figure for demonstrating connection of a cover member and a nozzle. FIG. 4 is a cross-sectional view of the nozzle device for explaining a state in which the cover member and the nozzle are connected;

FIG. 1 is a perspective view of a nozzle device 100 of 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 the liquid in the bathtub 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 ejection port 21a and a second ejection port 22a for ejecting liquid into the bathtub, and a suction port 31 for sucking the liquid in the bathtub. At least a cover member 3 having The outer connecting member 1 has a supply port 12a to which liquid is supplied from the circulation pump and a discharge port 13a to discharge the liquid to the circulation pump. The first jet port 21a and the second jet port 22a open into the bathtub.

FIG. 2 is an exploded view of the nozzle device 100. FIG. In FIG. 2, the nozzle device 100 is shown with the sealing member, mounting member, etc. removed, and the retainer member 15 and the outer connecting member 1 are shown in an integrated state. The nozzle device 100 further includes a regulating member 20 , a support member 24 and a retainer member 15 . The nozzle 2 is a “rotating body” composed of a nozzle head 21 and a nozzle body 22 and rotatably supported by a support member 24 . The support member 24 is a “fixed body” that can rotate relative to the nozzle 2 . Further, the support member 24 is fixed to the retainer member 15, and the retainer member 15 is also included in the "fixed body". That is, the support member 24 and retainer member 15 constitute a fixed body that rotatably supports the nozzle 2 .

The cover member 3 has an annular plate portion 3a, a cylinder portion 3b and a side hole portion 3c. The cylindrical portion 3b is formed in a cylindrical shape and has a plurality of side holes 3c forming the suction port 31. As shown in FIG. The annular plate portion 3 a projects radially inward from one end of the cylindrical portion 3 b , is an annular plate surface, and covers a portion of the nozzle body 22 and the support member 24 . A side hole 3c is formed through and allows the liquid in the bath to pass therethrough. The cover member 3 is detachably attached to the retainer member 15 , but may be detachably attached to the support member 24 . The user can remove the cover member 3 by pulling the cover member 3 away from the bathtub wall.

The nozzle body 22 is rotatably supported by a support member 24 and has at least a second ejection port 22 a and a connecting portion 23 , details of which will be described later. The second ejection ports 22a are formed in an arc shape, and are provided in a plurality in the surface of the nozzle body 22 on the front end side facing the inside of the bathtub, spaced apart in the circumferential direction. A plurality of connecting portions 23 are provided so as to protrude radially outward from the outer peripheral edge on the tip side of the nozzle body 22 and are connected to the cover member 3 . A plurality of connecting portions 23 are spaced apart in the circumferential direction, and are alternately displaced from the second ejection ports 22a in the circumferential direction.

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. In addition, 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 rotation axis direction of the nozzle body 22 is along the direction perpendicular to the bathtub wall on which the nozzle device 100 is provided. The surface of the nozzle body 22 on the tip side facing the inside of the bathtub is the inner surface in the rotation axis direction.

The nozzle head 21 is formed in a cylindrical shape and is provided so that the angle of the center line of the first ejection port 21a with respect to the rotation axis of the nozzle body 22 can be changed. It can be tilted, and the direction of the jet flow emitted from the first jet port 21a can be adjusted. The nozzle 2 ejects the liquid supplied from the circulation pump inward in the rotation axis direction from the first ejection port 21a and/or the second ejection port 22a.

The first jetting port 21a is provided at the center of the end surface of the nozzle device 100 viewed from the direction of the rotation axis, that is, the center of the end surfaces of the nozzle 2 and the cover member 3 facing the inside of the bathtub. The first jet port 21a jets out a spot jet flow with high straightness and suppressed expansion into the bathtub. The second ejection port 22a has a larger total opening area than the first ejection port 21a, and is gentler than the first ejection port 21a, and ejects a wide jet that is inclined in a radial direction from the rotation axis of the nozzle 2 into the bathtub. .

Although the details will be described later, the support member 24 is formed of a resin material in a circular tube shape, is fixed to the retainer member 15, surrounds the nozzle body 22 inserted inside, and rotatably supports the nozzle body 22. . A plurality of through holes functioning as suction ports 31 are formed in the outer surface of the support member 24 .

The retainer member 15 has a cylindrical shape with both ends opened and has a flange 15a at one end. The retainer member 15 has a male thread 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 to the outer connecting member 1 . The nozzle device 100 is attached to the bathtub by holding the edge of the attachment hole formed in the bathtub wall between the retainer member 15 and the outer connecting member 1 . A protrusion 15b is formed on the flange 15a so as to stand toward the inside of the bathtub. The protrusions 15 b are arranged in a circumferential shape and support the support member 24 .

The outer connecting member 1 is provided on the outside of the bathtub wall, sandwiches the bathtub wall together with the retainer member 15, and fixes the nozzle device 100 to the bathtub.

FIG. 3 is a longitudinal sectional view of the nozzle device 100 attached to the bathtub 9. As shown in FIG. 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 part 11 is cylindrical and has a flange 11a at one end on the bathtub wall 9a side. Although FIG. 3 shows a mode in which the flange 11a is in contact with the bathtub wall 9a of the bathtub 9, a 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 is continuous with the supply portion 12 at the other end. A supply port 12a located at the end of the supply unit 12 is connected to a pipe of a circulation pump. A liquid supply channel 17 is formed inside the inner tubular portion 14 .

A discharge channel 18 is formed inside the body portion 11 and outside the inner tubular portion 14 . The discharge channel 18 communicates with the discharge portion 13 . A pipe of a circulating pump is connected to the discharge port 13a located at the end of the discharge portion 13. As shown in FIG. A flow-through portion 16 is connected to the inner tubular portion 14 . The flow-through portion 16 is used for taking in air when taking in outside air and mixing air bubbles into the jet flow. In the embodiment, the open end of the flow-through portion 16 is closed, and the case where bubbles are not mixed into the jet will be described. In addition, an ejector may be provided inside the inner tubular portion 14 .

The retainer member 15 is inserted through the mounting hole 9 b of the bathtub 9 and is screwed into the internal thread formed on the inner peripheral surface of the body portion 11 to be connected to the outer connecting member 1 . A packing 34 is sandwiched between the flange 15a and the bathtub wall 9a for watertight sealing. A portion of the discharge channel 18 is formed inside the retainer member 15 and outside the support member 24 . The edge of the flange 15a engages so that the claw portion 3e of the cover member 3 is caught.

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 portion 24 a is inserted into and fitted into the inner tubular portion 14 of the outer connecting member 1 to constitute a part of the supply channel 17 . An annular packing is arranged on the outer circumference of the base portion 24a, and the supply channel 17 and the discharge channel 18 are watertightly sealed so as not to communicate with each other.

The stepped portion 24b is formed along the circumferential direction on the inner peripheral surface of the base portion 24a and forms a step that protrudes radially inward on the way from the outside to the inside in 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 nozzle body 22 from moving outward in the rotation axis direction 42, that is, to the inner side of the bathtub wall 9a.

The enlarged diameter portion 24c is provided so as to increase in diameter from the inner end portion of the base portion 24a in the rotation axis direction 42 toward the inside of the bathtub. A flange portion 24d is formed by bending radially outward from the enlarged diameter portion 24c. A second threaded portion 24h is formed on the distal end side of the expanded diameter portion 24c, that is, on the inner peripheral surface on the side of the open end to the bathtub 9. As shown in FIG. The second threaded portion 24 h is screwed into the restricting 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, toward the outer connecting member 1 and engages with the retainer member 15 . The annular portion 24e abuts against the flange 15a and is supported by the protrusion 15b so that radial rattling is suppressed by the protrusion 15b. The support member 24 is fixed to the retainer member 15 by fixing the annular portion 24e and the protrusion 15b or fastening the annular portion 24e and the protrusion 15b with screws. The annular portion 24e is provided with a plurality of through holes 24i penetrating inside and outside, and the inside of the bathtub 9 and the discharge channel 18 are communicated with each other through the through holes 24i.

The support member 24 has a reduced diameter portion 24f projecting inward from the inner surface of the base portion 24a inside the bathtub wall 9a to the stepped portion 24b. An outflow port 17a of the supply channel 17 is formed at an eccentric position inside the support member 24 . The outflow port 17a has an inner diameter approximately half or slightly smaller than the inner diameter of the base portion 24a, is formed in a circular, oval or elliptical shape, and is eccentric with respect to the central axis of the support member 24. position. That is, the outflow port 17a is an opening in which the inner diameter of the base portion 24a is reduced to about half by the diameter-reduced portion 24f. A recessed portion 24g recessed toward the outside of the bathtub wall 9a is formed in the support member 24 on the side of the outflow port 17a. When the nozzle body 22 rotates, foreign matter and dust contained in the flowing liquid enter the recessed portion 24g, thereby reducing the biting between the rear end portion 22d of the nozzle body 22 and the outflow port 17a.

The regulating member 20 is made of a resin material and has an annular shape, and is provided to attach the nozzle body 22 to the support member 24 . The restricting member 20 has a threaded portion formed spirally on its outer peripheral surface and is screwed into the supporting member 24 . Note that the regulation member 20 is not limited to a resin material, and may be a metal material.

The nozzle body 22 has a second jet port 22a, a first inlet 22b, a second inlet 22c, a partition wall 22e, a regulated portion 22f, an outer cylindrical portion 22g, a flange portion 22h, and a tubular portion 22i. The flange portion 22h is formed by bending radially outward from the inner end of the tubular portion 22i in the rotation axis direction 42 . A plurality of second ejection ports 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 restricted portion 22f protrudes radially outward from the outer cylindrical portion 22g. The regulated portion 22f engages with the regulating member 20 to regulate the movement of the nozzle body 22 inward in the rotation axis direction of the nozzle body 22, that is, toward the inside of the bathtub 9. As shown in FIG. The movement toward the inside of the bathtub 9 is the movement from the outside to the inside of the bathtub wall 9a, and the movement away from the inner surface of the bathtub wall 9a. Also, the regulated portion 22 f receives the elastic force of an annular seal member 27 disposed on the support member 24 and is pressed against the support member 24 by the regulating member 20 . Since the regulated portion 22f is pressed by the seal member 27, the watertightness of the flow path of the first ejection port 21a and the flow path of the second ejection port 22a is maintained.

The nozzle body 22 has a partition wall 22e that separates a flow path toward the first ejection port 21a and a flow path toward the second ejection port 22a. A first inlet 22b and a second inlet 22c are formed at the rear end portion 22d of the nozzle body 22 by the partition wall 22e. The first inlet 22b communicates with the first ejection port 21a, and the second inlet 22c communicates with the second ejection port 22a. Rotation of the nozzle body 22 causes one of the first inlet 22b and the second inlet 22c to communicate with the supply channel 17, and the other to block communication. The rotating shaft of the nozzle body 22 is the same as that of the cover member 3 .

The nozzle device 100 shown in FIG. 3 is in a state in which the supply flow path 17 and the first inlet 22b are in communication, and is in a first state in which a spot jet is emitted from the first ejection port 21a. The first inlet 22b is covered with a diameter-reduced portion 24f to block communication with the supply channel 17 . When the user grips the cover member 3 and rotates the cover member 3 from the first state in which the jet stream is emitted from the first jet port 21a, the nozzle 2 also rotates in conjunction with the state, and the second state shown in FIG. 4 follows. Become.

FIG. 4 is a vertical cross-sectional view of the nozzle device 100 in a second state in which jets are emitted from the second ejection ports 22a. As shown in FIG. 4, the first inlet 22b is blocked from communicating with the supply channel 17 by the diameter-reduced portion 24f, and the second inlet 22c faces the outlet 17a and communicates with the supply channel 17. As shown in FIG. state. In the second state, the plurality of second ejection ports 22a generate wide jets that are inclined in the radial direction from the central axis of the nozzle 2 . In this way, by rotating the nozzle 2, the user can change the state such as the strength and direction of the jet, set the jet to either a spot jet or a wide jet, or mix the spot jet and the wide jet. state can be set. That is, by rotating the nozzle 2, the nozzle 2 switches between a state in which only a spot jet is emitted, a state in which only a wide jet is emitted, and a state in which both a spot and wide jets are emitted. The spot jet and the wide jet have different liquid flow paths through the nozzle 2 , and the direction of the jet coming out of the nozzle 2 changes as the flow path is switched by the rotation of the nozzle 2 . As the user rotates the nozzle 2, the amount of liquid passing through the flow path communicating with the first ejection port 21a and the flow path communicating with the second ejection port 22a changes. The proportion of the jet exiting from 22a varies.

In addition, the number of ejection ports formed in the nozzle 2 is not limited to two, and may be one. Even if the nozzle 2 has only one ejection port, the rotation of the nozzle 2 changes the state of the jet flow from that ejection port.

FIG. 5 is a diagram for explaining the connection between the cover member 3 and the nozzles 2. As shown in FIG. The cover member 3 has a plurality of connected portions 3d on the back surface of the annular plate portion 3a. The connected portion 3d is recessed toward the inner peripheral edge of the annular plate portion 3a. The connected portion 3d engages with the connecting portion 23 of the nozzle body 22 in the circumferential direction so as to be capable of transmitting rotational torque.

The nozzle 2 is inserted into the support member 24 and rotatably supported. The connecting portion 23 of the nozzle main body 22 projects radially outward from the flange portion 22h and is positioned so as to ride on the flange portion 24d of the support member 24 beyond the regulating member 20. are in an overlapping state. It can also be said that the connecting portion 23 protrudes radially outward from the outer peripheral portion of the nozzle 2 . When viewed in the rotation axis direction, one connection part 23 protrudes in one direction perpendicular to the rotation axis with respect to the center of rotation, and another connection part 23 extends in the other direction perpendicular to the rotation axis. overhanging. That is, the two connecting portions 23 protrude in opposite directions to each other in the direction perpendicular to the rotation axis.

When the cover member 3 is mounted, the connecting portion 23 is fitted to the connected portion 3d, and the cover member 3 and the nozzle main body 22 are connected to form the nozzle device 100 shown in FIG. This connection enables the nozzle body 22 to receive the rotational torque of the cover member 3 , so that the nozzle body 22 is configured to rotate in conjunction with the rotation of the cover member 3 . Since the support member 24 is fixed to the retainer member 15 , the support member 24 does not rotate with the rotation of the nozzle body 22 and rotates relative to the nozzle body 22 .

When the user grips and rotates the cover member 3, the nozzle 2 and the support member 24 rotate relative to each other, and the position where the jet flows is switched between the first jet port 21a and the second jet port 22a. The cover member 3 is exposed so as to cover the outer peripheral surface of the nozzle device 100 inside the bathtub, and is easily gripped by the user and can be easily rotated. When the user is in the bathtub, the nozzle device 100 is located on the back side of the user at a position where it is difficult to operate, so facilitating the operation of the nozzle device 100 is very useful.

The cover member 3 may have a slit penetrating through the portion of the connected portion 3d as a configuration to be connected to the connecting portion 23, without being limited to the connected portion 3d. Alternatively, the cover member 3 may be formed with a projection, and the nozzle body 22 may be formed with a recess to fit the projection, and the cover member 3 and the nozzle body 22 may be connected. In any case, the cover member 3 and the nozzle main body 22 have step surfaces facing each other in the circumferential direction, and are provided so that the rotational torque of the cover member 3 can be transmitted to the nozzle main body 22 .

FIG. 6 is a cross-sectional view of the nozzle device 100 for explaining the state in which the cover member 3 and the nozzles 2 are connected. The connecting portion 23 is sandwiched between the annular plate portion 3a of the cover member 3 and the flange portion 24d of the supporting member 24 in a state where it is fitted to the connected portion 3d, so that the fitting is not likely to come off. .

The connected portion 3d is provided on the back surface of the cover member 3, and the connecting portion 23 is provided at a position facing the connected portion 3d. That is, the connected portion 3d and the connecting portion 23 are provided at positions opposed to each other in the rotation axis direction. The connecting portion 23 is at least partially covered with the cover member 3 .

Since the connecting portion 23 protrudes radially outward from the restricting member 20, the distance from the center of rotation to the connecting portion 23 can be increased, the rotational torque transmitted from the cover member 3 can be increased, and the operating force can be reduced. to make it operable.

It should 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 that such modifications are within the scope of the present invention.

In the embodiment, the nozzle 2 is composed of the nozzle body 22 and the nozzle head 21. However, the nozzle body 22 and the nozzle head 21 are integrated, and the nozzle 2 is composed of one member. you can Alternatively, the nozzle 2 may be composed of only the nozzle body 22 . In any case, the nozzle 2 is provided so as to rotate in conjunction with the rotation of the cover member 3 .

In the embodiment, a mode in which the nozzle 2 and the cover member 3 are connected is shown, but the present invention is not limited to this mode. For example, the support member 24 may be connected to the cover member 3 and may rotate in conjunction with the rotation of the cover member 3 . That is, the support member 24 is a rotating body, and the nozzle 2 is provided as a fixed body that rotatably supports the support member 24 . In this variant the nozzle 2 is fixed to the retainer member 15 or the outer connecting member 1 . As a configuration for fixing the nozzle 2 and the outer connecting member 1, the nozzle body 22 has a connecting portion extending through the inside of the support member 24 to the inner tubular portion 14 of the outer connecting member 1, and the connecting portion is an inner tubular portion. Rotation of the nozzle body 22 is restricted by being caught on the inner peripheral surface of the portion 14 . The nozzle body 22 may be fixed to the outer connecting member 1 by a separate connecting member. By connecting the inner peripheral surface of the cylindrical portion 3b of the cover member 3 and the outer peripheral surface of the annular portion 24e of the support member 24, the connection can be made at a position far from the center of rotation, and the rotational torque of the cover member 3 can be efficiently transferred to the support member 24. can be transmitted to

In the nozzle device of the second aspect, in the first aspect, the state of the jet flowing out of the nozzle may be changed by the rotation of the rotating body.
As a result, the user can easily change the state of the jet by rotating the cover member. Note that the change in the state of the jet means that the strength of the jet, the ejection direction, the ratio of the air contained in the jet, and the like change.

In the nozzle device of the third aspect, in the second aspect, the nozzle may have two types of ejection ports communicating with different flow paths. Also, the rotation of the rotating body may cause a jet flow to come out from either one of the jet ports.
With this, it is possible to switch the flow path of the liquid supplied from the pump by the rotation of the rotating body so that the jet flows out from one of the jet ports.

The nozzle device of the fourth aspect, in the second aspect,
Rotation of the rotating body may change the state of the jet emitted from one jet formed in the nozzle.
As a result, even if the nozzle has one ejection port, the state of the jet can be changed by rotating the nozzle.

A nozzle device of a fifth aspect may be any one of the first aspect to the fourth aspect, wherein the rotor may have the nozzle, and the cover member may be connected to the nozzle.
Thereby, the configuration for rotating the nozzle can be easily provided.

In a nozzle device of a sixth aspect, in any one of the first to fifth aspects, the cover member may have a cylindrical portion that covers at least one of the rotating body and the fixed body from the radially outer side.
As a result, the user can easily grasp the cylindrical portion located radially outward of the nozzle device, that is, the outer peripheral portion of the nozzle device, and can easily rotate the cover member and the rotating body.

2 nozzle 3 cover member 3b tube portion 24 support member 100 nozzle device.

Claims (6)

a rotating body;
a fixed body that rotatably supports the rotating body;
a cover member that covers at least one of the rotating body and the fixed body;
Either the rotating body or the fixed body has a nozzle for ejecting liquid into the bath,
The cover member is provided rotatably integrally with the rotating body ,
A nozzle device , wherein the rotation of the rotating body changes the state of a jet flow emitted from one ejection port formed in the nozzle. a rotating body;
a fixed body that rotatably supports the rotating body;
a cover member that covers at least one of the rotating body and the fixed body;
The rotating body has a nozzle for ejecting liquid into the bath,
The nozzle device, wherein the cover member is connected to the nozzle and provided so as to be rotatable integrally with the rotating body. a rotating body;
a fixed body that rotatably supports the rotating body;
a cover member that covers at least one of the rotating body and the fixed body;
Either the rotating body or the fixed body has a nozzle for ejecting liquid into the bath,
The cover member is provided rotatably integrally with the rotating body,
The nozzle has a first ejection port and a second ejection port communicating with different flow paths,
A jet is emitted from either one of the first ejection port and the second ejection port due to the rotation of the rotating body, and the state of the jet emitted from the nozzle changes;
The nozzle device , wherein the first ejection port is centrally arranged, and a plurality of the second ejection ports are provided radially outward of the first ejection port and spaced apart in the circumferential direction . 3. The nozzle device according to claim 1, wherein the rotation of the rotating body changes the state of the jet flowing out of the nozzle. The nozzle has two types of ejection ports communicating with different flow paths,
5. The nozzle device according to claim 4 , wherein a jet flow is emitted from one of the jet ports by rotation of the rotating body. The nozzle device according to any one of claims 1 to 5, wherein the cover member has a cylindrical portion that covers at least one of the rotating body and the fixed body from the radially outer side.

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