JP2019037715A - Bathtub water discharge device - Google Patents

Abstract

To provide a bathtub water discharge device including an illumination unit from which light is radiated with illuminance whose uniformity is improved even when a front end is curved in a concave shape.SOLUTION: A bathtub water discharge device that is provided on the upper part of a bathtub, having an internal surface curved in a concave shape in the front and back direction, on the internal surface side and has a front end curved in a concave shape in the front and back direction comprises: a water discharge unit that includes a water discharge port provided at the front end and is capable of discharging wide hot-water extending in the right and left direction from the water discharge port; and an illumination unit that includes a light emitting port provided at the front end and a light source unit provided in the right and left direction, the light source unit radiating laterally long radiation light in the front direction toward the light emitting port. The light source unit's end sides in the right and left direction are arranged in front of its center unit side.SELECTED DRAWING: Figure 7

Description

  Aspects of the present invention generally relate to a water discharge device for a bathtub.

  2. Description of the Related Art A bathtub water discharge device (hereinafter referred to as a “water discharge device”) used by being attached to a bathtub is known (for example, Patent Document 1). The water discharger is attached to the upper end (rim) of the bathtub, and discharges wide hot water from the water discharge port provided at the front end toward the shoulder and neck of the bather. Thereby, the relaxation effect at the time of bathing can be heightened. Such a water discharging apparatus may be called a shoulder water apparatus etc., for example.

  Moreover, in the water discharging apparatus, the illumination part is provided and the vicinity of a water discharge port is illuminated brightly with the light irradiated from the illumination part (refer patent document 1). The illuminating unit includes a light emitting port provided at the front end and a light source unit that emits light toward the light emitting port. Thereby, for example, when it is going to darken the whole bathroom and to give a high-class feeling, the wide hot water discharged from the water outlet can be easily seen.

  On the other hand, in a bathtub, in order to improve a feeling of bathing, the backrest surface (inner wall surface) of the bathtub is curved in a concave shape. In this case, since the edge of the upper end of the backrest surface is also curved in a concave shape, the front end portion of the water discharging device needs to be curved in a concave shape.

  However, if the front end portion of the water discharge device is curved in a concave shape, the distance from the light source portion to the light exit port changes between the central portion and the left and right end portions. For this reason, at the left and right end portions where the distance from the light source portion to the light emission port is long, the illuminance may be lower than in the central portion where the distance from the light source portion to the light emission port is short. Therefore, even when a lighting unit is provided, when the entire bathroom is darkened to give a high-class feeling, it becomes difficult to see the left and right ends of the wide hot water discharged from the water outlet, which reduces usability. There was a possibility of being invited.

  For this reason, in the water discharging apparatus for bathtubs, it is desired to improve the uniformity of the illuminance of light emitted from the illumination unit even when the front end is curved in a concave shape.

Japanese Patent Laid-Open No. 2006-8428

  The present invention has been made on the basis of recognition of such a problem. Even when the front end portion is curved in a concave shape, a water discharge device for a bathtub that improves the uniformity of the illuminance of light emitted from the illumination unit is provided. The purpose is to provide.

  According to this invention comprised in order to achieve the said objective, it is provided in the upper part of the inner wall face side of the bathtub which has an inner wall surface curved concavely in the front-back direction, and the bathtub which has the front-end part curved concavely in the front-back direction A water discharge device for use, having a water discharge port provided at the front end portion, a water discharge portion capable of discharging wide hot water extending in the left-right direction from the water discharge port, and a light emission port provided at the front end portion, A light source unit that is provided in the left-right direction and irradiates a horizontally long irradiation light forward toward the light emission port, and the light source unit has a center side on the end side in the left-right direction. It is characterized by being arranged further forward.

According to this water discharge apparatus for bathtubs, since the light source part is arranged closer to the light exit port side than the center part side in the left-right direction, the front end part is curved concavely toward the front-rear direction. Even if it is a case, the linear distance in the front-back direction from a light source part to a light-projection opening can be arrange | equalized by the center part side and an edge part side.
Therefore, it is possible to suppress unevenness of light emitted from the light exit port, and to uniformly illuminate the hot water discharged from the left and right sides, for example, it becomes difficult to see the hot water discharged from the left and right ends, and the left and right ends. On the side, the possibility of causing uncomfortable feelings to the bather by causing hot water with a high flow rate to be accidentally applied to a body part not intended by the bather, such as the eyes of the bather. Can do.

  In the present invention, preferably, the light source unit is composed of a plurality of light emitting elements, and the light emitting elements are respectively attached to the front surfaces of the substrates at different positions in the front-rear direction, and the substrates are arranged linearly in the left-right direction. .

According to the water discharge device for a bathtub, since the light emitting element is attached to the front surface of the substrate arranged so as not to be inclined in the left-right direction, the irradiation light at the central portion of the irradiation light emitted from the light emitting element is emitted. By proceeding straight to the mouth, it is possible to prevent a region where the irradiation light does not hit from being generated at the light emission port without variation of the irradiation light toward the light emission port.
Therefore, the irradiation light irradiated from the light exit port can further prevent the unevenness of light between the central portion side and the end portion side of the light exit port.

  In the present invention, preferably, the substrate is disposed so that light irradiated from the light emitting element to the light emitting port is not shielded by the side surface and / or the back surface of the substrate positioned in front of the light emitting element.

According to this water discharge device for bathtubs, the substrate is arranged so that the light irradiated from the light emitting element to the light emission port is not shielded by the side surface and / or the back surface of the substrate located in front of the light emitting element. On the left and right end sides of the light exit, light is generated by combining the light emitted from the light emitting elements on the left and right ends in addition to the light spread from the left and right ends of the light emitted from the light emitting elements on the center side. Can be strengthened.
Therefore, it can suppress that the intensity | strength of the light irradiated from a light-projection opening differs between a center part side and an edge part side, and can suppress the nonuniformity of light more.

  In the present invention, preferably, the substrate is configured such that the distance in the front-rear direction to the front surface of the adjacent substrate increases from the center side toward the end side.

According to this water discharge apparatus for bathtubs, since it is constituted so that the distance in the front-rear direction to the front surface of the adjacent substrate increases from the center side to the end side, from the center side to the end side. The linear distance in the front-rear direction from the light emitting element to the light exit port can be made uniform so as to correspond to the light exit port whose position changes forward in a curved shape.
Therefore, the irradiation light irradiated from the light exit port can further prevent the unevenness of light between the central portion side and the end portion side of the light exit port.

  In the present invention, preferably, the substrate is configured such that the lateral width of the substrate decreases from the central portion side toward the end portion side.

According to this water discharge apparatus for bathtubs, since the substrate is configured such that the lateral width of the substrate decreases from the center side to the end side, the substrate has a curved shape from the center side to the end side. The linear distance in the front-rear direction from the light emitting element to the light emission port can be made uniform so as to correspond to the light emission port whose position changes forward.
Therefore, the irradiation light irradiated from the light exit port can further prevent the unevenness of light between the central portion side and the end portion side of the light exit port.

  In the present invention, preferably, the intervals between the light emitting elements are arranged so that the end portion side is denser than the central portion side.

According to this water discharge device for bathtubs, the interval between the light emitting elements is arranged so that the end side is closer to the center side than the center side, so the curve is curved from the center side to the end side. Irradiation light directed toward the light exit port on the end side can be made stronger than the center side so as to correspond to the light exit port whose position changes forward.
Therefore, in addition to adjusting the distance between the light emitting port and the light emitting element, it is not necessary to secure a large space for arranging the front end surface and the rear end surface of the substrate by adjusting the strength of the light emitting element itself. The light source unit can be made compact, and the irradiation light emitted from the light exit port can further prevent unevenness of light between the center side and the end side of the light exit port.

  In the present invention, preferably, the illumination unit further includes a light guide plate provided in front of the light source unit, and the light guide plate serves as a rear end serving as a light incident surface for irradiation light and a light emission surface for irradiation light. A front end, and the front end and the rear end of the light guide plate are curved in a concave shape with substantially the same curvature as the front end in the front-rear direction.

According to this water discharge apparatus for bathtubs, the light guide plate has a rear end that is a light incident surface for irradiation light and a front end that is a light emission surface for irradiation light, and the front end and the rear end of the light guide plate are front and rear. Since it is curved in a concave shape with substantially the same curvature as the front end in the direction, the light diffused by the light guide plate can be aligned.
Therefore, the irradiation light irradiated from the light emission port can prevent unevenness of light between the center side and the end side.

  According to the aspect of the present invention, there is provided a water discharge device for a bathtub that improves the uniformity of the illuminance of light emitted from the illumination unit even when the front end portion is curved in a concave shape.

It is a perspective view showing the bathtub and water discharging apparatus for bathtubs concerning an embodiment typically. It is a top view showing typically the bathtub and water discharging apparatus for bathtubs concerning an embodiment. It is a disassembled perspective view which represents typically the water discharging apparatus for bathtubs concerning embodiment. It is sectional drawing which represents typically the bathtub water discharging apparatus which concerns on embodiment. It is a disassembled perspective view which represents typically the light source module of the water discharging apparatus for bathtubs which concerns on embodiment. It is a block diagram showing typically the bathtub and water discharging apparatus for bathtubs concerning an embodiment. It is a top view which represents typically the bathtub water discharging apparatus which concerns on embodiment. It is a top view which represents typically the modification of the water discharging apparatus for bathtubs concerning embodiment. It is a top view which represents typically the modification of the water discharging apparatus for bathtubs concerning embodiment.

Hereinafter, embodiments will be described with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is a perspective view schematically illustrating a bathtub and a water discharge device for a bathtub according to the embodiment.
FIG. 2 is a plan view schematically illustrating the bathtub and the water discharge device for bathtubs according to the embodiment.
As shown in FIGS. 1 and 2, the water discharge device 10 for bathtubs (hereinafter referred to as the water discharge device 10) is used by being attached to the bathtub 100.

  The bathtub 100 includes a bathtub main body 102. The bathtub body 102 has an inner wall surface 104. The inner wall surface 104 has a backrest surface 106 that supports the back of the bather. The backrest surface 106 is curved in a concave shape in the front-rear direction. Accordingly, the upper end 106a connected to the backrest surface 106 is similarly curved in a concave shape in the front-rear direction.

  Here, in the specification of the present application, when viewed from the bather whose back is in contact with the backrest surface 106, the upper side is “upper”, the lower side is “lower”, the front is “front”, and the rear is “back”. The right side is “right side” and the left side is “left side”.

  The water discharging apparatus 10 is provided in the upper part by the side of the backrest surface 106 of the bathtub main body 102. FIG. For this reason, the water discharging apparatus 10 has the front-end part 12 curved in the concave shape in the front-back direction. The curvature of the front end portion 12 corresponds to the curvature of the upper end 106 a of the backrest surface 106. For example, the front end portion 12 is curved along the upper end 106a.

  The bathtub body 102 has a pair of injection ports 108 provided on the backrest surface 106. Each injection port 108 injects hot water toward the waist of a bather whose back is in contact with the backrest surface 106. Each injection port 108 injects hot water aiming at the position of the spinal column standing muscle which is an antigravity muscle of a bather, for example. Thereby, a bather's waist etc. can be stimulated and the relaxation effect at the time of bathing can be heightened more. In this example, the bathtub main body 102 has two injection ports 108 arranged side by side. The number of injection ports 108 is not limited to two, and may be one or three or more.

FIG. 3 is an exploded perspective view schematically illustrating the water discharge device for bathtubs according to the embodiment.
FIG. 4 is a cross-sectional view schematically illustrating the water discharge device for bathtubs according to the embodiment.
FIG. 4 schematically shows a cross section taken along line A1-A2 of FIG.
As shown in FIGS. 3 and 4, the water discharge device 10 includes a water discharge unit 14 and an illumination unit 16. The water discharge portion 14 has a water discharge port 14 a provided at the front end portion 12. The water discharge port 14a is a slit-like opening extending in the left-right direction. By being provided at the front end portion 12, the water discharge port 14a is also curved in a concave shape in the front-rear direction.

  The water discharger 14 discharges wide (band-like) hot water extending in the left-right direction from the water discharge port 14a. The water discharger 14 discharges hot water toward the inside of the bathtub body 102. That is, the water discharger 14 discharges hot water toward the front. For example, the water discharger 14 discharges hot water toward the neck and shoulders of a bather whose back is in contact with the backrest surface 106. Thereby, for example, a bather's neck and shoulder can be warmed more, a massage effect can be given to a bather's neck and shoulder, and the relaxation effect at the time of bathing can be heightened more.

  The length of the water outlet 14a in the left-right direction is, for example, 20 cm or more. The length of the water discharge port 14a in the left-right direction is longer than the average width of a human neck, for example. Thereby, hot water can be appropriately applied to the neck and shoulder of the bather whose back is in contact with the backrest surface 106. Moreover, the length of the water outlet 14a in the left-right direction is shorter than the width in the left-right direction of the space inside the bathtub body 102, for example. Thereby, hot water can be appropriately discharged in the bathtub main body 102.

  The illumination unit 16 has a light exit port 16 a provided in the front end portion 12. The light exit 16a is a slit-like opening extending in the left-right direction. By being provided at the front end portion 12, the light exit port 16a is also curved in a concave shape in the front-rear direction. The illuminating unit 16 irradiates horizontally long light forward from the light exit port 16a. Thereby, for example, when the entire bathroom is darkened, the hot water discharged from the water discharger 14 can be easily seen. For example, the appearance of the bathtub 100 can be improved.

  The water discharger 14 includes, for example, a lower case 20 and an upper case 22. The lower case 20 includes a plate-shaped case main body 20a and a piping portion 20b extending downward from the case main body 20a. The piping part 20b is cylindrical, for example. The piping part 20b penetrates the case main body 20a up and down, and communicates the lower side and the upper side of the case main body 20a.

  The lower case 20 is attached to the upper portion of the bathtub body 102 on the backrest surface 106 side. The piping part 20 b is inserted into a through hole 106 b provided in the upper part of the bathtub main body 102 on the backrest surface 106 side, and communicates with a space below the upper part of the bathtub main body 102 on the backrest surface 106 side. A male screw is formed on the outer peripheral surface of the pipe portion 20b. A cylindrical flange 24 is inserted into the pipe portion 20b from below. On the inner peripheral surface of the flange 24, a female screw corresponding to the male screw of the pipe portion 20b is provided. The flange 24 engages a female screw provided on the inner peripheral surface with a male screw of the pipe portion 20 b and sandwiches a part of the bathtub main body 102 together with the case main body 20 a of the lower case 20. Thereby, the water discharging part 14 is attached to the upper part by the side of the backrest surface 106 of the bathtub main body 102. FIG.

  The upper case 22 is mounted on the lower case 20 and forms the water discharge port 14a together with the lower case 20, and also forms the internal flow path 14b from the pipe portion 20b to the water discharge port 14a. Thereby, hot water is discharged from the water outlet 14a by supplying hot water from the piping part 20b.

  The illumination unit 16 includes, for example, a light source module 30, a light guide plate 32, and a cover 34. The light source module 30 irradiates light toward the light emission port 16a. The light guide plate 32 is provided in front of the light source module 30, and guides the light emitted from the light source module 30 to the light exit port 16a.

  The cover 34 is provided on the water discharge unit 14, the light source module 30, and the light guide plate 32. For example, the cover 34 is attached on the water discharge unit 14 and covers the upper side, both sides, and the rear side of the light source module 30 and the light guide plate 32. The cover 34 forms the light emission port 16 a together with the upper case 22 of the water discharge unit 14. Thereby, the cover 34 suppresses that the light radiate | emitted from the light source module 30 leaks outside from parts other than the light exit 16a. Thereby, the external appearance of the bathtub 100 can be further improved.

  In this example, the illumination unit 16 is provided on the water discharge unit 14. Contrary to the above, the water discharge part 14 may be provided on the illumination part 16. In this case, the cover 34 may be omitted. The cover 34 is provided as necessary and can be omitted. Moreover, in this example, the front end portion 12 of the water discharge device 10 is formed by the lower case 20, the upper case 22, and the cover 34. The configuration of the front end portion 12 is not limited to the above, and may be any configuration that forms the front end portion of the water discharge device 10.

FIG. 5 is an exploded perspective view schematically showing the light source module of the water discharge device for bathtubs according to the embodiment.
As illustrated in FIGS. 4 and 5, the light source module 30 includes a light source unit 40, a heat radiating plate 44, and a storage case 46.

The light source unit 40 extends in the left-right direction, and is arranged so that the end side is positioned forward from the center side in the left-right direction, and irradiates the horizontally long irradiation light forward toward the light emission port 16a. To do.
Note that the light source unit 40 may be disposed so that the end side is positioned forward from the center side in the left-right direction. For example, a curved tube fluorescent lamp may be used.

In the present embodiment, the light source unit 40 includes a plurality of substrates 41 and a light emitting element 42 attached to the substrate 41.
The board | substrate 41 is rectangular shape, and is arrange | positioned linearly (in order not to incline) in the left-right direction. In other words, the irradiation light is arranged so as to be irradiated straight toward the light exit port 16a.
The plurality of substrates 41 are arranged in a step shape so that the end portion side is positioned forward from the center side in the left-right direction.
The light source unit 40 only needs to be arranged so that the end side is positioned more forward than the center side in the left-right direction. For example, the light source unit 40 includes one substrate 41 having a different thickness in the front-rear direction in the left-right direction. May be.

  The light emitting element 42 is a light source that emits light according to the supply of electric power. Each light emitting element 42 is mounted side by side on the surface (front surface) 41 a of the substrate 41. Thereby, the light source part 40 forms the linear light emission surface LS extended in the left-right direction. In this example, the light emitting surface LS is, in other words, the surface 41a of the substrate 41. The light emitting surface LS is planar, and the light source unit 40 can irradiate horizontally long light toward the inside of the bathtub body 102.

  For each light emitting element 42, for example, an LED (Light Emitting Diode), an LD (Laser Diode), an OLED (Organic Light Emitting Diode), or the like is used. The type of each light emitting element 42 is not limited to the above, and any element may be used. The configuration of the number of light emitting elements 42 and the rows is not limited to the above, and any configuration capable of irradiating horizontally long light may be used.

  For example, when a surface-emitting element such as an organic EL (Electro-Luminescence) element is used as the light source of the light source unit 40, the number of light sources may be one. Further, the light source of the light source unit 40 may be, for example, a fluorescent lamp or an optical fiber. The light source of the light source unit 40 may be an arbitrary light source capable of emitting horizontally long light. For example, when a straight tube type fluorescent lamp is used as the light source of the light source unit 40, the outer surface of the fluorescent lamp may be a linear light emitting surface LS. In this case, the light emitting surface LS has a curved surface shape (cylindrical surface shape). As described above, the linear light emitting surface LS of the light source unit 40 is not limited to a planar shape, and may be a curved surface shape (cylindrical surface shape) extending linearly in the left-right direction. The configuration of the light source unit 40 may be an arbitrary configuration capable of emitting horizontally long light.

  The heat sink 44 supports the substrate 41. The heat radiating plate 44 is thermally coupled to the substrate 41 and each light emitting element 42 and radiates heat generated when the light emitting elements 42 are turned on. For the heat radiating plate 44, for example, a metal material having high thermal conductivity such as aluminum or copper is used. For example, when a fluorescent lamp or the like is used as the light source, the heat radiating plate 44 can be omitted. Thus, the heat sink 44 is provided as necessary and can be omitted.

  The storage case 46 is hollow and stores the substrate 41, each light emitting element 42, and the heat dissipation plate 44 in an internal space. The storage case 46 suppresses water exposure of the substrate 41 and each light emitting element 42 by, for example, sealing the internal space.

  The storage case 46 includes a light transmission window 46 a that transmits light emitted from each light emitting element 42. The light transmission window 46 a is provided at the front end portion of the storage case 46 so as to face at least a part of the light emitting surface LS. The light transmission window 46a is, for example, a plate-like member having light transparency with respect to the light emitted from each light emitting element 42. For the light transmission window 46a, for example, a transparent resin material or the like is used. Thereby, the light emitted from each light emitting element 42 provided inside the storage case 46 can be emitted to the outside of the storage case 46 while the space inside the storage case 46 is sealed. The portion other than the light transmission window 46a of the storage case 46 may be light reflective or light transmissive with respect to the light emitted from each light emitting element 42.

  The heat radiating plate 44 includes a first plate portion 44 a attached to the inner bottom surface of the storage case 46, and a second plate portion 44 b that extends upward from the rear end of the first plate portion 44 a and supports the substrate 41. . The upper end of the second plate portion 44b is inclined forward. The second plate portion 44b supports the substrate 41 with the upper end of the substrate 41 inclined to the front side. Thereby, for example, even when a plurality of light emitting elements 42 are arranged in two rows, the thickness (length in the vertical direction) of the light source module 30 can be suppressed. For example, the thickness of the light source module 30 can be suppressed while increasing the intensity (brightness) of light emitted from the light source unit 40.

  The first plate portion 44 a faces the surface 41 a of the substrate 41 in a direction orthogonal to the surface 41 a of the substrate 41. In other words, the first plate portion 44a faces the light emitting surface LS. As described above, a metal material is used for the heat radiating plate 44. The heat radiating plate 44 is light reflective with respect to the light emitted from each light emitting element 42. The first plate portion 44a reflects light emitted obliquely downward from each light emitting element 42 and directs it forward. Thereby, even when the substrate 41 is disposed at an inclination, the light emitted from each light emitting element 42 can be appropriately directed forward.

  The heat radiating plate 44 and the storage case 46 are provided in the light source module 30 as necessary, and can be omitted. The light source module 30 should just have the light source part 40 at least. The light source part 40 should just have the light source which can irradiate at least horizontally long light.

FIG. 6 is a block diagram schematically illustrating the bathtub and the water discharge device for bathtubs according to the embodiment.
As illustrated in FIG. 6, the bathtub 100 further includes, for example, an electric pump 110, a switching valve 112, a jet pump unit 114, a control unit 116, and an operation unit 118. Moreover, the bathtub main body 102 has the suction inlet 120 for sucking in the hot water stored in the bathtub main body 102.

  The electric pump 110 is connected to the suction port 120 via a pipe 122. The electric pump 110 sucks hot water in the bathtub body 102 from the suction port 120 and supplies it to the downstream side. The electric pump 110 has, for example, a function of applying pressure to the sucked hot water and feeding it. For example, the electric pump 110 sucks hot water in the bathtub body 102 by rotation of an impeller (not shown) directly connected to an electrically driven electric motor (not shown), and the sucked hot water is downstream. To pump.

  The switching valve 112 is connected to the electric pump 110 via a pipe 124. The switching valve 112 switches between a route for sending hot water supplied from the electric pump 110 to the water discharge unit 14 side of the water discharge device 10 and a route for sending the hot water supplied to each injection port 108 side.

  Each injection port 108 is connected to the switching valve 112 via a pipe 126. For example, the pipe 126 is bifurcated in the middle and connected to each of the injection ports 108. Thereby, in the bathtub 100, hot water is injected from each injection port 108 by driving the electric pump 110 and switching the switching valve 112 to each injection port 108 side.

  The jet pump unit 114 is provided on a path between the water discharge unit 14 of the water discharge device 10 and the switching valve 112. The jet pump unit 114 is provided, for example, directly below the water discharge unit 14.

  The jet pump unit 114 includes a water storage unit 130 and a nozzle unit 132. The water storage unit 130 has a container shape and can store hot water in an internal space. The water storage unit 130 is connected to the suction port 120 via a pipe 134. Thereby, hot water is supplied to the water storage part 130 from the bathtub main body 102 through the suction inlet 120. That is, hot water is stored in the water storage section 130 by storing hot water in the bathtub body 102. The water storage unit 130 stores hot water supplied from the bathtub body 102 via the suction port 120 and the pipe 134 inside. The hot water supply to the water storage unit 130 may be supplied from a suction port different from the suction port 120 of the electric pump 110. Moreover, the hot water supplied to the water storage part 130 is not restricted to the hot water stored in the bathtub main body 102, The hot water supplied from another water supply source may be sufficient.

  In addition, the water storage unit 130 is connected to the switching valve 112 through a pipe 136 and is connected to the water discharge unit 14 through a pipe 138. The pipe 136 is connected to the lower part of the water storage unit 130, for example. For example, the pipe 138 is connected to the upper part of the water storage unit 130 so as to face the pipe 136. The pipe 136 extends upward from the water storage section 130 and is connected to the pipe section 20 b of the water discharge section 14.

  The nozzle part 132 is provided at a connection part between the water storage part 130 and the pipe 136. The nozzle part 132 injects hot water supplied from the electric pump 110 through the switching valve 112 and the pipe 136 into the pipe 138. As a result, hot water supplied from the electric pump 110 is supplied to the water discharge unit 14, and hot water stored in the water storage unit 130 is drawn into the pipe 138 by the action of the jet pump and stored in the water storage unit 130. Hot water is also supplied to the water discharger 14. Thereby, even when the electric pump 110 is made relatively small, a large flow of hot water can be supplied to the water discharger 14. For example, hot water having a flow rate greater than or equal to the maximum flow rate of the electric pump 110 can be supplied to the water discharger 14.

  Thus, in the bathtub 100, hot water is discharged from the water discharging part 14 by driving the electric pump 110 and switching the switching valve 112 to the path on the water discharging part 14 side. Further, in the bathtub 100, both the water discharge unit 14 side and each injection port 108 side are communicated with the electric pump 110 by the switching valve 112, thereby discharging hot water from the water discharge unit 14 and jetting hot water from each injection port 108. Can be performed simultaneously.

  The control unit 116 is connected to the electric pump 110, the switching valve 112, and the operation unit 118. The operation unit 118 is used by being attached to, for example, the bathtub body 102 or a bathroom wall. The operation unit 118 includes a switch, a sensor, and the like, and can input various operation instructions to the control unit 116 in accordance with an operation of a bather or the like. The operation unit 118 is a so-called remote controller. Electrical communication between the control unit 116 and the operation unit 118 may be wired or may be performed wirelessly.

  The control unit 116 controls the operation of the electric pump 110 and the switching valve 112 according to the operation instruction input from the operation unit 118. When the control unit 116 is instructed by the operation unit 118 to inject hot water from each injection port 108, the control unit 116 starts driving the electric pump 110, and switches the switching valve 112 to each injection port 108 side. Hot water is jetted from 108.

  When the control unit 116 is instructed to discharge hot water from the water discharging unit 14 from the operation unit 118, the control unit 116 starts driving the electric pump 110 and switches the switching valve 112 to the water discharging unit 14 side to thereby supply hot water from the water discharging unit 14. Let the water spit out.

  In addition, when the control unit 116 is instructed by the operation unit 118 to simultaneously discharge water from the water discharge unit 14 and each injection port 108, the control unit 116 starts driving the electric pump 110, and both the water discharge unit 14 side and each injection port 108 side. By switching the switching valve 112 so as to communicate with the electric pump 110, hot water is discharged from the water discharge section 14 and hot water is injected from each injection port 108.

  And the control part 116 stops the drive of the electric pump 110, when the stop of the hot water discharge from the water discharge part 14 or the stop of the injection of the hot water from each injection port 108 is instruct | indicated.

  Moreover, the control part 116 is connected with the illumination part 16 (light source part 40) of the water discharging apparatus 10. FIG. The control unit 116 switches on / off the illumination unit 16 in accordance with an operation instruction input from the operation unit 118.

FIG. 7 is a plan view schematically showing the water discharge device for bathtubs according to the embodiment.
In FIG. 7, in the water discharging apparatus 10, the state which removed the cover 34 is represented typically.
In addition, the arrow and the magnitude | size shown in FIG. 7 represent the magnitude | size of the direction and the intensity | strength (light quantity) where light goes.
As illustrated in FIG. 7, the light guide plate 32 includes a rear end 32 a serving as a light incident surface for irradiation light emitted from the light source unit 40, and a front end 32 b serving as a light emission surface for irradiation light. The rear end 32a and the front end 32b of the light guide plate 32 are curved in a concave shape in the front-rear direction.
The curves at the rear end 32 a and the front end 32 b are curved corresponding to the front end portion 12. In other words, the rear end 32a and the front end 32b are curved corresponding to the light exit port 16a. The rear end 32a and the front end 32b are curved along the light exit port 16a. The outer shapes of the rear end 32a and the front end 32b are substantially the same (substantially the same curvature) as the outer shape of the light exit port 16a. “Substantially the same” means that a range that takes into account manufacturing tolerances and assembly variations is included. The light exit port 16 a exposes only the front end 32 b of the light guide plate 32. The front end 32b, for example, closes the light emission port 16a and suppresses intrusion of hot water from the light emission port 16a to the inside.

  The rear end 32a has fine irregularities, for example. For example, a prism cut is applied to the rear end 32a. Thereby, reflection of the irradiation light at the rear end 32a can be suppressed, and the irradiation light can be efficiently incident into the light guide plate 32. The front end 32b has fine irregularities, for example. The front end 32b is subjected to, for example, graining. Thereby, reflection of the irradiation light in the front end 32b can be suppressed, and irradiation light can be efficiently emitted from the light guide plate 32.

  The plurality of substrates 41 are arranged symmetrically in the left-right direction, and front to back from the surface 41a near the center to the surface 41a near the adjacent end in the left-right direction. It arrange | positions so that the length of a direction may become long.

Specifically, the length between the front surfaces 41a in the front-rear direction changes to D1, D2, and D3 with respect to the adjacent substrate 41 in the left-right direction from the center side toward the end side. Has been placed.
At that time, the length relationship between the front surfaces 41a of the substrates is arranged such that D1 <D2 <D3.
In other words, the position of the substrate 41 is arranged so as to be positioned exponentially forward from the center side toward the end side. For example, the substrate 41 is preferably arranged so as to follow the curvature of the outer shape of the light exit port 16a.

The substrate 41 is arranged such that the irradiation light emitted from the light emitting element 42 attached to the substrate 41 is not shielded by the back and side surfaces of the substrate 41 positioned in front of the light emitting element 42.
In other words, the board | substrate 41 is arrange | positioned so that it may not interfere with the irradiated light which goes to the light emission port 16a from the light emitting element 42. FIG.

  Specifically, the substrate 41 is disposed so as not to be positioned in front of a straight line in the front-rear direction of each light emitting element 42. In addition, the length between the front surfaces 41a of the substrates is such that the light located on the end side of the light emitted from the light emitting element 42 toward the light emitting port 16a directly hits the side surface of the adjacent substrate 41. It is arranged with no length.

  Here, the light shielding means that light is not transmitted by absorbing or reflecting light, and the transmittance is preferably 50% or less, and more preferably 10% or less.

As described above, according to the water discharge device 10 according to the present embodiment, the light source unit 40 is arranged in such a manner that the end portion side is disposed more forward than the central portion side, so that the front end portion 12 is directed in the front-rear direction. Even in the case of being curved in a concave shape, the linear distance in the front-rear direction from the light source unit 40 to the light emission port 16a can be made uniform between the central portion side and the end portion side.
Therefore, unevenness of the light emitted from the light exit port 16a can be suppressed, and the hot water discharged can be illuminated uniformly in the left and right directions. For example, the hot water discharged from the left and right end portions becomes difficult to see, On the part side, at the start of water discharge, hot water with a high flow rate is accidentally applied to a body part unintended by the bather, such as the bather's eyes, thereby reducing the possibility of giving the bather discomfort. be able to.

In addition, since the light emitting element 42 is attached to the surface 41a of the substrate that is linearly arranged in the left-right direction, the irradiation light at the central portion of the irradiation light emitted from the light emitting element 41 is straight to the light exit 16a. By proceeding, the irradiation light toward the light exit 16a does not vary, and it is possible to prevent creation of a region where the irradiation light does not strike in the light exit 16a.
Therefore, it is possible to prevent unevenness of light between the central portion side and the end portion side of the light exit port 16a.

Further, since the substrate 41 is arranged so that the light emitted from the light emitting element 42 to the light emitting port 16a is not shielded by the side surface and the back surface of the substrate 41 positioned in front of the light emitting element 42, the light emitting port 16a. On the left and right end sides, in addition to the light spread from the light emitting element 42 on the central side, the light emitted from the light emitting element 42 on the left and right end sides is combined with the light spread from the left and right. Can be strong.
Therefore, it can suppress that the intensity | strength of the light irradiated from the light exit 16a differs by the center part side and the edge part side of the light exit 16a, and can suppress the nonuniformity of light more.
It is preferable that the light emitted from the light emitting element 42 to the light emission port 16a is not blocked by the side surface and the back surface of the substrate 41, but may be disposed so as not to be blocked by the side surface or the back surface of the substrate 41. .

Moreover, since the board | substrate 41 is comprised so that the distance of the front-back direction to the front surface of the adjacent board | substrate 41 may become long as it goes to an edge part side from a center part side, it goes to a edge part side from a center part side. The distance on the straight line in the front-rear direction from the light emitting element 42 to the light emission port 16a can be made uniform so as to correspond to the light emission port 16a whose position changes forward in a curved shape.
Therefore, the irradiation light irradiated from the light exit port 16a can further prevent unevenness of light between the central portion side and the end portion side of the light exit port 16a.

Furthermore, the light guide plate 32 has a rear end 32a that is a light incident surface for irradiation light, and a front end 32b that is a light emission surface for irradiation light. The front end 32b and the rear end 32a of the light guide plate 32 are in the front-rear direction. , The light diffused by the light guide plate 32 can be made uniform because it is concavely curved with substantially the same curvature as the front end.
Therefore, the irradiation light irradiated from the light exit port 16a can further prevent unevenness of light between the central portion side and the end portion side of the light exit port 16a.

FIG. 8 is a plan view schematically illustrating a modified example of the water discharge device for bathtubs according to the embodiment of the present invention.
Note that components that are substantially the same in function and configuration as those in the above embodiment are given the same reference numerals, and detailed descriptions thereof are omitted.
As shown in FIG. 8, in this water discharging apparatus 10, the some board | substrate 41 is arrange | positioned so that the width | variety of the board | substrate 41 in the left-right direction may become small as it goes to the edge part side from the center side in the left-right direction.

Specifically, the width of the substrate 41 is arranged so as to change from W1, W2, W3, and W4 toward the end portion from the substrate 41 located at the most central side.
At this time, the substrate 41 is arranged so that the width of the substrate 41 is W1>W2>W3> W4.

According to the water discharging apparatus 10 according to the modified example of the present invention, since the substrate 41 is configured so that the lateral width of the substrate 41 becomes smaller from the central portion side toward the end portion side, from the central portion side. The distance on the straight line in the front-rear direction from the light emitting element 42 to the light emitting port 16a can be made uniform so as to correspond to the light emitting port 16a whose position changes forward in a curved shape toward the end side.
Therefore, the irradiation light irradiated from the light exit port 16a can prevent unevenness of light between the center side and the end side.

FIG. 9 is a plan view schematically illustrating a modified example of the water discharge device for bathtubs according to the embodiment of the present invention.
As shown in FIG. 9, in this water discharging apparatus 10a, the several board | substrate 41 is arrange | positioned so that the space | interval of light emitting elements 42 may become dense as it goes to the edge part side from the center side in the left-right direction.

Specifically, the distance between the light emitting elements 42 is changed to S1, S2, S3, and S4 from the substrate 41 located on the most central side toward the end side.
At this time, the length relationship between the adjacent light emitting elements 42 is arranged so that S1>S2>S3> S4.

According to the water discharging device 10 according to the modified example of the present invention, the distance between the light emitting elements 42 is arranged so that the end portion side is denser than the central portion side. It can be made to correspond to the light emission port 16a whose position changes in a curve forward as it goes to the end side, and the front-rear direction from the light emitting element 42 to the light emission port 16a on the central side and the end side In addition, the linear distance can be made uniform, and the irradiation light from the light emitting element 42 toward the light exit 16a can be made stronger on the end side than on the center side.
Therefore, in addition to adjusting the distance between the light exit port 16a and the light emitting element 42, it is not necessary to secure a large space in the front-rear direction for arranging the plurality of substrates 41 by adjusting the strength of the light emitting element 42 itself. Thus, the light source unit 40 can be made compact, and the irradiation light emitted from the light exit port 16a can prevent unevenness of light between the center side and the end side of the light exit port 16a. Can do.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention. For example, the shape, size, material, arrangement, and the like of each element included in the light source unit 40 and the like are not limited to those illustrated, and can be changed as appropriate.
Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

  10, 10a to 10d Water discharging device, 12 Front end portion, 14 Water discharging portion, 16 Illumination portion, 20 Lower case, 22 Upper case, 30 Light source module, 32 Light guide plate, 34 Cover, 40 Light source portion, 41 Substrate, 41a Front surface (front surface) 42 Light emitting element, 44 Heat sink, 46 Storage case, 50, 54, 55 Air gap, 52 Side surface, 60 Reflective member, 62 Side surface 100 Bathtub, 102 Bathtub body, 104 Inner wall surface, 106 Backrest surface, 108 Injection port 110 electric pump, 112 switching valve, 114 jet pump unit, 116 control unit, 118 operation unit, 120 suction port, 122, 124, 126, 134, 136, 138 piping, 130 water storage unit, 132 nozzle unit

Claims (7)

A water discharge device for a bathtub having a front end portion curved in a concave shape in the front-rear direction, provided at the upper part of the inner wall surface side of the bathtub having a concave inner wall surface in the front-rear direction,
A water discharge portion having a water discharge port provided at the front end portion and capable of discharging a wide hot water extending in the left-right direction from the water discharge port;
An illumination unit comprising: a light emitting port provided at the front end; and a light source unit that is provided in the left-right direction and irradiates a horizontally elongated irradiation light forward toward the light emitting port.
With
The water discharger for bathtubs is characterized in that the light source part is arranged on the front side in the left-right direction from the center part side.
The said light source part consists of a some light emitting element, The said light emitting element is each attached to the front surface of the board | substrate from which a position differs in the front-back direction, The said board | substrate was arrange | positioned linearly in the left-right direction. Water discharge device for bathtubs.
The water discharging apparatus for bathtubs according to claim 2, wherein the substrate is arranged such that light irradiated from the light emitting element to the light emitting port is not shielded by a side surface and / or a back surface of the substrate positioned in front of the light emitting element. .
The water discharge bathtub apparatus according to claim 2 or 3, wherein the substrate is configured such that a distance in a front-rear direction to a front surface of an adjacent substrate increases from the center side toward the end side.
4. The water discharge bathtub apparatus according to claim 2, wherein the substrate is configured such that the lateral width of the substrate becomes smaller from the center side toward the end side.
4. The water discharge bathtub apparatus according to claim 2, wherein the light emitting elements are arranged so that the distance between the light emitting elements is closer to the end than to the center.
The illumination unit further includes a light guide plate provided in front of the light source unit,
The light guide plate has a rear end that becomes a light incident surface of the irradiation light, and a front end that becomes a light emission surface of the irradiation light,
The water discharge apparatus for bathtubs according to any one of claims 1 to 6, wherein the front end and the rear end of the light guide plate are curved in a concave shape with substantially the same curvature as the front end portion in the front-rear direction.

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