JP4108068B2 - Hot water outlet device for bathtub - Google Patents

Description

  The present invention relates to a hot water outlet device for a bathtub that is provided on a bathtub wall and discharges hot water to the bathtub.

  2. Description of the Related Art Conventionally, a hot water supply system for a bathtub in which a bathtub and a water heater are connected by piping so as to perform hot water treatment and reheating processing on the bathtub is well known.

As a hot water outlet apparatus used for such a hot water supply system for bathtubs, there is, for example, one shown in Patent Document 1 below. The hot water outlet device includes an in-tub protruding portion that is arranged so as to protrude to the inside of the bathtub, and first and second compartments are provided inside the protruding portion in the bathtub. Further, first and second outlets are provided on both sides of the lower portion of the protruding portion in the bathtub corresponding to the first and second compartments, and the first and second outlets are provided on the front surface of the protruding portion in the bathtub. First and second suction ports are provided corresponding to the two compartments. At the time of hot water filling, hot water is introduced from the outdoor water heater into the first and second compartments and supplied from the first and second outlets into the bathtub. Moreover, at the time of additional cooking, the bathtub water is sucked from, for example, the second suction port, sent to the outdoor water heater through the second compartment, and reheated, and the heated hot water is introduced into the first compartment. And it is comprised so that bathtub water may be circulated forcibly by being supplied in a bathtub from a 1st discharge outlet.
Japanese Patent Laid-Open No. 10-47783 (FIG. 20)

  In the conventional hot water outlet device for bathtubs, hot water is discharged from the discharge port into the bathtub at the time of hot water filling or additional cooking, but if this discharged water is disturbed without being stable, it is stored in the bathtub. Variations in the temperature distribution of the hot water generated may make it difficult to obtain a comfortable bathing environment.

  An object of the present invention is to solve the above-described problems of the prior art and to provide a hot water outlet device for a bathtub that can stably supply hot water into the bathtub.

  In order to achieve the above object, the present invention is summarized as follows.

[1] A hot water outlet apparatus for a bathtub provided on a bathtub wall,
A compartment member having a rear wall disposed along the bathtub wall surface, a front wall disposed at a distance from the rear wall on the inner side of the bathtub, and an outer peripheral wall provided on an outer periphery between the front and rear walls. And
The compartment member includes a compartment, a discharge chamber, a compartment outlet communicating between the two chambers, a discharge port communicating the discharge chamber with the interior of the bathtub, and a discharge opening provided at the compartment outlet. And the supply water supplied from the outside of the bathtub into the compartment is discharged into the bathtub through the compartment outlet, the discharge chamber, and the discharge port,
The discharge valve has a proximal end fixed to one of the front wall and the rear wall, and a distal end is pushed by the water pressure in the compartment and swings toward the discharge chamber. Configured to open the outlet,
Among the front wall and the rear wall, when the wall corresponding to the proximal end side of the discharge valve is a valve proximal end side wall, and the wall corresponding to the distal end side is a valve distal end side wall,
On the inner surface of the valve tip side wall in the compartment member, a valve tip installation groove is provided corresponding to the tip of the discharge valve,
In the valve closed state, the hot water outlet apparatus for bathtubs is configured such that the tip of the discharge valve is accommodated in the valve tip installation groove.

  [2] The hot water outlet apparatus for a bathtub according to the above item 1, wherein the front wall is configured as a valve proximal end side wall and the rear wall is configured as a valve distal end side wall.

  [3] The hot water inlet apparatus for a bathtub according to the above item 1 or 2, wherein a smooth surface in which the valve tip side wall surface in the discharge chamber is continuous with the valve tip side wall surface in the compartment is formed.

  [4] The hot water inlet apparatus for a bathtub according to any one of the preceding items 1 to 3, wherein the valve tip side wall surface in the compartment and the valve tip side wall surface in the discharge chamber are arranged in the same plane.

[5] The compartment has first and second compartments, the compartment outlet has first and second compartment outlets, the discharge valve has first and second discharge valves, The valve tip installation groove has first and second valve tip installation grooves,
Supply water supplied from the outside of the bathtub to the first compartment is discharged into the bathtub through the outlet of the first compartment, the discharge chamber, and the discharge port, and from the outside of the bathtub to the second compartment. While the supply water to be supplied is configured to be discharged into the bathtub through the second compartment outlet, the discharge chamber, and the discharge port,
The hot water for bathtubs according to any one of the preceding items 1 to 4, wherein in the valve closed state, the first and second valve tip installation grooves are configured to accommodate the tips of the first and second discharge valves. Mouth device.

  [6] The hot water port apparatus for bathtubs according to the above item 5, wherein the first and second compartment outlets are arranged in parallel.

[7] The front wall of the compartment member is provided with a first suction port that communicates the inside of the bathtub and the first compartment, and a second suction port that communicates the interior of the bathtub and the second compartment,
The preceding item 5 or 6, wherein the first and second suction ports are provided with first and second suction valves that allow water flow from the inside of the bathtub to the first and second compartments and restrict the backflow thereof. The hot water outlet apparatus for bathtubs as described in 2.

[8] A protrusion in the bathtub arranged to protrude inside the bathtub is provided, a discharge flow path is provided in the protrusion in the bathtub, and supply water supplied from outside the bathtub into the discharge flow path is discharged from the bathtub. A hot water outlet apparatus for a bathtub that is adapted to be discharged along the inner wall surface of the bathtub from the outer periphery of the bathtub protrusion through a flow path,
A discharge valve is provided in the discharge flow path so as to be openable and closable,
The discharge valve has a base end side fixed to one wall surface of the discharge flow path, and a distal end side is pushed by the water pressure of the supply water flowing through the discharge flow path and swings downstream, whereby the discharge flow path Configured to release
A valve tip installation groove is provided on the wall surface facing the tip side of the discharge valve in the discharge flow path,
In the valve closed state, the hot water outlet apparatus for bathtubs is configured such that the tip of the discharge valve is accommodated in the valve tip installation groove.

  In the present invention, the terms “downstream side” and “upstream side” are used with respect to the flow direction of circulating water, for example, the flow direction of hot water flowing through the discharge flow path.

  According to the hot water outlet device for a bathtub according to the invention of [1], the tip of the discharge valve is accommodated in the valve tip installation groove, and therefore the valve seat on the discharge valve tip side can be formed inside the installation groove. For this reason, no protrusion or step for the valve seat is formed on the valve tip side wall surface of the discharge flow path composed of the compartment chamber outlet, the discharge chamber, and the discharge port. Can be prevented, and hot water can be supplied stably.

  According to the hot water outlet apparatus for bathtubs according to the invention of [2], since warm water is distributed along the rear wall surface in the compartment member, the discharged warm water is fed along the rear wall of the compartment member, that is, It can supply effectively along a bathtub inner wall surface.

  According to the hot water outlet apparatus for a bathtub according to the invention of [3] or [4], the hot water flowing from the compartment to the discharge chamber flows while receiving a rectifying action by the smoothly continuous wall surface of each chamber, Hot water can be supplied more stably.

  [5] According to the invention of [5], it is possible to provide a double transport type hot water port device for a bathtub that supplies hot water and water in two paths, while having the above-described effects.

  According to the hot water outlet device for a bathtub according to the invention of [6], it is easy to adjust the direction and flow velocity of the discharged hot water, and a desired discharge performance can be obtained.

  According to the invention of [7], a so-called nonpolar hot water port apparatus for bathtubs can be provided in addition to having the above-described effects.

  According to the hot water outlet apparatus for a bathtub according to the invention of [8], the protrusion for the valve seat or the stepped portion is not formed on the wall surface on the valve front end side in the discharge flow path, as described above. It is possible to prevent the circulating water from being disturbed by the part or step, and to supply hot water stably.

  1 to 3 are views showing a bathtub hot water outlet apparatus according to an embodiment of the present invention. As shown in these drawings, the hot water outlet device of this embodiment is assembled in a mounting hole (H) provided on the side wall of the bathtub (T). This device sucks in hot water in the bathtub (T) and hot water storage processing such as hot water that supplies hot water supplied from a water heater provided outside the bathtub (T) into the bathtub (T). Then, it is sent to a hot water heater, where it is reheated and forced circulation processing such as reheating is performed so that hot water is returned to the bathtub (T).

  In addition, this hot water outlet device can be used regardless of which one of the forward pipe and the return pipe connected to the water heater is connected to the two outer pipe connection portions (1a) and (1b) provided in this apparatus. Of the sex type.

  As shown in FIGS. 1 to 3, the hot water outlet device of the present embodiment includes a tank external fixture (1), a device body (10), and a filter member (9) as basic components. Furthermore, the apparatus main body (10) includes an in-tank fixture (2) and a flow path forming member (3).

  The outer tank fixture (1) includes a cylindrical outer cylinder (12) having one end (front side) opened and the other end (rear side) closed, and the outer cylinder (12). A cylindrical inner cylinder (11) disposed coaxially inside, a flat ring-shaped flange (15) provided on one end outer periphery of the outer cylinder (12), and an outer cylinder (12) It is comprised with the metal product which has the tubular 1st and 2nd outer pipe | tube connection part (1a) (1b) integrally provided in the other end obstruction | occlusion wall, and is extended to the other end side along an axial center direction.

  The inner space of the inner cylinder (11) is configured as a part of the first flow path (A), and the space between the inner cylinder (11) and the outer cylinder (12) is a second flow. The first outer pipe connecting portion (1a) is communicated with the first flow path (A), and the second outer pipe connecting portion (1b) is the second flow. It is connected to the road (B).

  A female thread is engraved on the inner peripheral surface on one end side of the outer cylindrical body (11). Further, an O-ring (81) made of synthetic rubber is accommodated in the front end portion of the inner peripheral surface of the inner cylinder (11).

  The ring-shaped synthetic rubber covering packing (82) provided on the flange (15) of the outside-mounting fixture (1) has a fitting groove formed along the inner peripheral surface thereof, and the flange is formed in the fitting groove. (15) is accommodated and fixed in a state of covering almost the entire outer peripheral surface of the flange (15). The front side of the covering packing (82) is formed in a thick plate shape and is configured as a packing body.

  The apparatus body (10) has an in-tank fixture (2) and a flow path forming member (3).

  The in-tank fixture (2) integrally includes a cylindrical cylindrical body (21) whose both ends are open, and a flat ring-shaped flange (25) provided on one outer periphery of the cylindrical body (21). It is constituted by a cylindrical rigid synthetic resin molded product made of polyacetate resin or the like.

  The cylindrical body (21) has an external thread engraved on the outer peripheral surface thereof, and is configured to be screwed into the cylindrical hole of the outer cylindrical body (12) in the external tank fixture (1).

  Further, a plurality of screw receiving bosses (26) are integrally formed on the front side of the flange (25) at predetermined intervals along the circumferential direction.

  The elastic packing (83) interposed between the in-tank fixture (2) and the inner wall of the bathtub (T) is configured with a flat ring-shaped synthetic rubber molded product corresponding to the shape of the flange (25). .

  Further, the buffer member (84) interposed between the flange (25) and the packing (83) is formed in a flat ring shape corresponding to the shape of the flange (25). This buffer member (84) is formed of a molded product of a soft synthetic resin such as a polyethylene resin having softness or elasticity.

  And in the state arrange | positioned so that the flange (15) of the said tank outer attachment tool (1) may be along the peripheral part of the attachment hole (H) in the outer wall surface of a bathtub (T), (2) The cylinder (15) of the in-tank fitting (2) is configured such that the flange (15) is pressed against the peripheral edge of the mounting hole (H) on the inner wall surface of the bathtub via the buffer member (84) and the packing (83). (21) is screwed and fixed through the mounting hole (H). As a result, the flanges (15) and (25) of both fixtures (1) and (2) sandwich the peripheral edge of the mounting hole in the bathtub side wall, so that both fixtures (1) and (2) penetrate the bathtub side wall. Fixed to.

  The flow path forming member (3) of the apparatus main body (10) includes a flow path forming member main body (4) and a lid (6).

  The flow path forming member main body (4) is made of an integrally molded product of hard synthetic resin, and has an elongated cylindrical tubular body (41) and a compartment member main body (5) provided at one end thereof. . In the present embodiment, the compartment member (50) is constituted by the compartment member body (5) and the lid (6).

  The cylindrical body (41) is formed in a size that can be inserted into the inner cylindrical body (11) of the above-described tank external fixture (1) in an adapted state.

  The compartment member main body (5) has a disc-shaped rear wall (51) provided at one end of the cylindrical body (41) and an outer peripheral wall provided so as to surround the outer periphery on the front side of the rear wall (51). (52) are integrated. The compartment member main body (5) is formed so that the size in the radial direction is substantially the same as the flange (25) of the in-tank fixture (2).

  As shown in FIGS. 5 and 6, the partition chamber member main body (5) is integrally formed with a partition wall (53) on the front side thereof, and the interior of the partition chamber member main body (5) has three chambers (5a). ) To (5c). Of these, the first compartment (5a) is formed in a substantially upper right region of the compartment member body (5) in the figure, and the second compartment (5b) is formed in the left half region. Furthermore, the discharge chamber (5c) is formed in the lower right region.

  The first and second compartments (5a) and (5b) in the compartment member main body (5) are formed in a non-communication state independently of each other. Further, the first compartment (5a) and the discharge chamber (5c) communicate with each other via the first compartment outlet (53a), and between the second compartment (5b) and the discharge chamber (5c). Are communicated via the second compartment outlet (53b).

  The first and second compartment outlets (53a) and (53b) are arranged side by side, and the opening axes (Ea) and (Eb) of each other, that is, the opening directions of each other are substantially parallel to the discharge chamber (5c). Has been.

  A discharge port (55) is formed in the lower right part of the outer peripheral wall (52) of the partition chamber member main body (5) so as to correspond to the entire circumferential direction of the discharge chamber (5c). The discharge chamber (5c) is open to the outside (inside the bathtub). Furthermore, the discharge port (55) has a larger size in the circumferential direction than the first and second compartment outlets (53a) and (53b). Thus, the hot water supplied from the respective compartment outlets (53a) and (53b) of the first and second compartments (5a) and (5b) into the discharge chamber (5c) expands the discharge chamber (5c) in the circumferential direction. However, it is configured to be discharged from the discharge port (55). In other words, the discharge channels (Da) and (Db) including the respective compartment chamber outlets (53a) and (53b), the discharge chambers (5c), and the discharge ports (55) are hatched areas (Da) and (Db) indicated by solid lines in FIG. ), The hot water discharged through the fan-shaped discharge passages (Da) and (Db) is discharged into the discharge path as shown in the hatched area in FIG. By being discharged while being diffused in the circumferential direction along the extended paths (Da) and (Db), it is configured to be supplied evenly over a wide range in the bathtub.

  The first discharge channel (Da) on the first compartment outlet (53a) side and the second discharge channel (Db) on the second compartment outlet (53b) side are in a front view state (front view state). In the discharge chamber (5c), the hot water flowing out from the first and second compartment outlets (53a) and (53b) is mutually inserted (hatching area Da, A portion where Db overlaps) is formed. Thus, by forming the common part of the first and second discharge flow paths (Da) and (Db) in one discharge chamber (5c), the degree of expansion of each discharge flow path (Da) (Db) can be increased. Even when only one of the discharge flow paths is used, such as when hot water is poured, hot water can be sufficiently diffused and discharged in the circumferential direction.

  Here, the opening angle of each fan-like discharge channel (Da) (Db) is set to 40 to 170 °, preferably 50 to 150 °, respectively. That is, if the opening angle is too small, the diffusibility of hot water during hot water discharge may be reduced. On the other hand, if it is too large, there is a risk that variations and deviations will occur in the hot water discharge direction.

  The area ratio of the overlapping portions (shared portions) of the discharge flow paths (Da) and (Db) is the total area of the discharge flow paths (Da) and (Db) (the area of the discharge flow path Da + the area of the discharge flow path Db− The area is preferably set to 20 to 90%, preferably 30% or more, more preferably 40% or more with respect to the area of the portion where both flow paths Da and Db overlap.

  In the present invention, it is not always necessary to form the discharge flow paths (Da) and (Db) in a sector shape, and the downstream end of the discharge flow paths (Da) and (Db) is located on the upstream side of the discharge flow paths (Da) and (Db). On the other hand, as long as the circumferential dimension is increased, the above-mentioned hot water diffusion can be obtained.

  Moreover, in this embodiment, among the rear wall inner surfaces of the partition chamber member main body (5), the rear wall surfaces (51a) (51b) of the first and second partition chambers (5a) (5b) and the discharge chamber (5c) The rear wall surface (51c) is arranged in the same plane, and a continuous smooth flat surface is formed by each rear wall surface (51a) (51b) (51c). Thereby, the hot water which distribute | circulates a discharge flow path (Da) (Db) from a 1st and 2nd division chamber (5a) (5b) distribute | circulates smoothly along each rear wall surface (51a) (51b) (51c). Thus, the flow of warm water is stabilized by this rectifying action, and is discharged from the discharge port (55) in the stable state.

  As shown in FIG. 5, valve members (7) and (7) described later are provided on both sides of the first and second compartment outlets (53a) and (53b) in the partition wall (53) of the compartment member body (5). Recesses (54) and (54) are formed to support each.

  Further, as shown in FIGS. 4 and 5, a valve support (54a) is provided at the intermediate position between the first and second compartment outlets (53a) and (53b) on the rear wall (51) of the compartment member main body (5). (54b) is formed. The valve support portions (54a) (54b) are formed in an inclined shape so as to approach the rear wall (51) side in the discharge direction (downstream side).

  Further, on the inner surface of the rear wall (51) in the compartment member body (5), the first and second valve tip installation grooves (52a) are located at positions corresponding to the first and second compartment outlets (53a) and (53b). ) (52b) is formed in the direction transverse to the compartment outlets (53a) (53b).

  The rear wall (51) in the first compartment (5a) of the compartment member main body (5) is formed with a first opening (50a) communicating with the inside of the cylindrical body (41). 50a) communicates the first compartment (5a) with a first flow path (A) described later. Furthermore, the rear wall (51) in the second compartment (5b) is formed with a second opening (50b) communicating with the outside of the cylindrical body (51), and the second compartment is formed by this opening (50b). (5b) communicates with a second flow path (B) described later.

  Further, the rear wall (51) of the compartment member body (5) has screw insertion portions (56) corresponding to any three of the plurality of screw receiving bosses (26) of the in-tank fitting (2). Are formed at equal intervals in the circumferential direction.

  As shown in FIG. 7, the lid (6) constituting the front wall is configured with a disk-shaped hard synthetic resin molded product corresponding to the front opening of the compartment member body (5).

  The lid (6) has first and second suction ports (6a) (6a) corresponding to the vicinity of the first and second compartment outlets (53a) and (53b) of the compartment member body (5). 6b) is formed. Each suction inlet (6a) (6b) has a plurality of small holes.

  In addition, on the back side of the lid (6), valve mounting portions (61a) (61b) are formed corresponding to the first and second compartment outlets (53a) (53b).

  Furthermore, three screw insertion portions (66) are formed in the lid (6), corresponding to the three screw insertion portions (56) of the compartment member body (5).

  As shown in FIGS. 1 to 3, the lid (6) and the flow path forming member main body (4) are assembled and fixed to the in-tank fixture (2) by three tapping screws (37). . That is, the cylinder (41) of the flow path forming member main body (4) passes through the cylinder (21) of the in-tank fitting (2) and into the cylindrical hole of the inner cylinder (11) of the out-of-tank fitting (1). The three screw insertion portions (56) of the flow path forming member main body (4) are inserted into the fitted state via the O-ring (81), and the plurality of bosses (26) of the in-tank fixture (2) are provided. ) Is adapted to any three corresponding bosses (26). Furthermore, the screw insertion part (66) of the lid (6) is inserted into the screw insertion part (56) of the flow path forming member main body (4) in an adapted state, and the lid (6) is inserted into the flow path forming member main body ( 4) is arranged in a closed manner in the front opening. In this state, the screw (37) is inserted into the screw insertion portion (66) (56) from the front side of the lid (6), and fixed to the corresponding boss (26) with screws. Thereby, the lid (6) is fixed to the flow path forming member main body (4), and the flow path forming member (3) is assembled. At the same time, the flow path forming member (3) is attached to the in-tank fitting (2 ).

  In this assembled state, the inside of the inner cylindrical body (11) of the outer tank fixture (1) communicates with the inside of the cylindrical body (41) of the flow path forming member (3), so that the first flow path (A ) And the first flow path (A) communicates with the first compartment (5a) via the first opening (50a). Further, the space between the inner and outer cylinders (11) and (12) of the tank outer fitting (1) is between the cylinder (21) of the tank inner fitting (2) and the cylinder (41) of the flow path forming member (4). The second flow path (B) is configured to communicate with the second flow path (B), and the second flow path (B) is communicated with the second compartment (5b) through the second opening (50b).

  Further, in this assembled state, the front portion of the apparatus main body (10), that is, the partition chamber member (50) is arranged in a state protruding inward from the inner surface of the bathtub, and is configured as a protruding portion in the bathtub. Yes.

  Further, as shown in FIG. 4, a flow path restricting piece (62) is formed integrally with the lid (6) at a position (periphery edge peripheral portion) corresponding to the ejection port (55) in the lid (6). Yes. The throttle piece (62) is formed so as to protrude from the lid (6) side toward the rear wall (51), and over the entire region corresponding to the discharge port (55) of the lid (6). Is formed. Further, the diaphragm piece (62) is formed so that its thickness decreases from the proximal end to the distal end so that the inner surface thereof becomes an inclined surface.

  Here, the inclination angle (θ1) on the inner surface of the diaphragm piece (62) is set to 12 to 22 °, preferably 15 to 19 °. Further, the closing rate of the discharge port (55) by the throttle piece (62) is set to 10 to 60%, preferably 25 to 50%. When the inclination angle (θ1) and the blockage rate are adjusted within the above-described preferable range, the flow path of the hot water discharged from the discharge port (55) can be appropriately narrowed down, and the hot water is supplied with a sufficient flow rate. Can be ejected vigorously.

  In addition, as shown in FIG. 1 thru | or FIG. 3, between a rear surface side outer periphery part of a division chamber member (50) and the outer periphery part of the flange (35) in a tank fixture (2), it is a flat ring shape. The synthetic rubber packing (85) is interposed, and watertightness between them is configured.

  The compartment member (50) is formed with three bowl-shaped grooves (36) for attaching the filter member on the outer peripheral surface thereof.

  On the other hand, as shown in FIGS. 4 and 8, the valve members (7) and (7) provided in the flow path forming member (3) are composed of synthetic rubber integrally molded products. The valve members (7) and (7) are formed in a substantially “H” cross section, and one piece is configured as a rectangular plate-like discharge valve (71), and the other piece is a rectangular plate-like suction. It is configured as a valve (72). Furthermore, a substantially square bar-shaped valve support shaft (73) is provided at the connecting portion between the discharge valve (71) and the suction valve (72).

  The front part of the valve support shaft (73) in the valve members (7) and (7) is fitted to the valve mounting parts (61a) and (61b) on the back surface of the lid in the flow path forming member (3), and the valve Both end portions of the support shaft (73) are fitted into the recessed step portions (54) (54) on both sides of the first and second compartment outlets (53a) (53b) in the flow path forming member (3). As a result, as shown by the solid line in FIG. 4, in the natural state, the discharge valves (71) and (71) of the valve members (7) and (7) connect the compartment outlets (53a) and (53a) to the discharge chamber (5c). The suction valves (72) and (72) are disposed so as to block the suction ports (6a) and (6b) from the compartments (5a) and (5b) side. At this time, the discharge valves (71) and (71) are supported by the valve support portions (54a) and (54b) in the natural state, from the proximal end side (the lid body 6 side) to the distal end side (the rear wall 51 side). As it goes, it is arranged in an inclined posture so as to gradually approach the rear wall (51) side. Furthermore, the discharge valve (71) (71) in the natural state (closed state) has its tip housed in the valve tip installation groove (52a) (52b), respectively. In this configuration, a part of the inner peripheral surface of the valve tip installation groove (52a) (52b) is configured as a valve seat on the distal end side of the discharge valve (71) (71), and in the natural state, the discharge valve (71) The tip end side is arranged in contact with the inner peripheral surface of the valve tip installation groove by an elastic force. Thus, in this embodiment, since the valve seat is formed in the valve tip installation groove (52a) (52b), the valve seat portion protrudes from the rear wall surface (51c) of the discharge chamber (5c). Therefore, it is possible to prevent the formation of protrusions and steps due to the formation of the valve seat on the valve front end side. Therefore, it is possible to prevent the circulated water from being disturbed by the convex portions and stepped portions, and it is possible to circulate hot water stably.

  FIG. 4 shows only the configuration on the first valve member (7) side attached to the first compartment outlet (53a) side, but in the present embodiment, the first compartment outlet (53b) side is shown. The configuration on the second valve member (7) side attached to is basically the same as the configuration on the first valve member (7) side.

  Here, the inclination angle (θ2) of the discharge valve (71) in the closed state is set to 5 to 70 °, preferably 15 to 50 °. That is, when this inclination angle (θ2) is set within the above preferred range, the effect of the discharge valve inclination arrangement can be obtained more reliably as will be described later.

  In the valve members (7) and (7) attached in this manner, the discharge valves (71) and (71) have peripheral edges (valves) of the compartment outlets (53a) and (53b) on the discharge chamber (5c) side. When the hot water tries to flow from the discharge chamber (5c) side to the compartments (5a) and (5b) side, it is in close contact with the pre-installation grooves 52a and 52b (including the inner peripheral surface) by elastic force. The water pressure maintains the closed state of the discharge valves (71) and (71) with respect to the compartment outlets (53a) and (53b), restricts the flow of hot water in that direction, and conversely the compartment (5a). When warm water tries to flow from the (5b) side to the discharge chamber (5c) side, the discharge valves (71) and (71) are supported at the base end side by the water pressure as shown by the imaginary line in FIG. By elastically deforming so that the tip side swings toward the discharge chamber (5c) side The front end side of the discharge valves (71) (71) is pulled out from the front end installation grooves (52a) (52b), the compartment outlets (53a) (53b) are opened, and the flow of hot water in that direction is allowed. ing. Accordingly, the discharge valves (71) and (71) of the valve members (7) and (7) serve as check valves that allow the warm water to flow in the discharge direction and prevent the suction direction from flowing to the discharge chamber (5c). Function.

  Further, the suction valves (72) and (72) of the valve members (7) and (7) have peripheral edges (valve seats) of the suction ports (6a) and (6b) on the compartments (5a) and (5b) side. ) Due to the elastic force, and when hot water is about to flow out from the compartments (5a) and (5b) side, the suction port (6a) ( 6b) is maintained closed, the flow of hot water in that direction is restricted, and conversely, when hot water tries to flow into the compartment (5a) (5b) side from the outside, Thus, the suction valves (72) and (72) are elastically deformed inward, so that the suction ports (6a) and (6b) are opened, and the hot water in that direction is allowed to flow. Therefore, the suction valves (72) and (72) of the valve members (7) and (7) allow the warm water in the suction direction and block the flow in the discharge direction with respect to the compartments (5a) and (5b). Functions as a check valve.

  As shown in FIGS. 1 to 3, the filter member (9) is arranged so as to cover the outer peripheral side surface from the front surface of the partition chamber member (50) in the flow path forming member (3). A disc-shaped front cover (91) covering the front side of (50), and a side cover (92) provided along the peripheral edge of the front cover and covering the outer peripheral side surface of the compartment member (50). Have.

  The front cover (91) of the filter member (9) has a plurality of suction openings (95) formed radially, and a metal mesh sheet as a filter body is disposed in the suction opening (95). ing.

  Further, the side cover (92) of the filter member (9) has a discharge opening (97) corresponding to the discharge port (55) of the compartment member (50).

  Further, on the inner surface of the side surface cover (92) of the filter member (9), there are three engagement projections (36) corresponding to the three bowl-shaped grooves (36) provided on the outer peripheral surface of the flow path forming member (3). 96) is formed in an inward projecting shape. The engaging protrusion (96) is inserted and engaged with the bowl-shaped groove (36), so that the filter member (9) is detachably attached to the flow path forming member (3).

  In this attached state, the discharge opening (97) of the filter member (9) is disposed in conformity with the discharge port (55) of the flow path forming member (3).

  In this embodiment, the assembly procedure to the bathtub (T) of the hot water outlet device is not particularly limited, but for example, it is assembled as follows.

  First, the tank external fitting (1) is disposed at a position corresponding to the mounting hole (H) on the side wall outer surface side of the bathtub (T), while the flange (15) in the tank internal fitting (2) is disposed on the rear surface side. The buffer member (84) and the packing (83) are arranged, and in this state, the cylindrical body (21) of the in-tank fitting (2) is inserted into the mounting hole (H) from the inside of the bathtub (T). Then, it is screwed and fixed to the outer cylinder (12) of the tank outer fixture (1).

  Next, the flow path forming member (3) is attached to the in-tank fixture (2). At this time, in the flow path forming member (3), the valve member (7) (7) is set on the lid (6) as described above, and the lid (6) with the valve member is attached to the main body (4). ) Temporarily assembled.

  In this state, the flow path forming member (3) is inserted into the cylinder (21) of the in-tank fitting (2) through the cylinder (41), and the inner cylinder (11) of the out-of-tank attachment (1) is inserted. ) To fit into the cylindrical hole. Then, the screw (37) is inserted into the screw insertion portion (66) (56) from the front side of the lid (6), and screwed into the boss (26) to be fixed.

  Then, the assembly work to the bathtub (T) of a hot-water mouth apparatus is completed by covering and attaching a filter member (9) to a flow-path formation member (3).

  In the hot water outlet apparatus assembled in the bathtub (T) in this manner, the pipe from the outdoor water heater is connected to the outer pipe connection portions (1a) and (1b) of the external fixture (1) to form a bathtub system. Is done.

  In this bathtub system, when hot water is supplied into the bathtub (T) to store hot water, the hot water is supplied to both of the two outer pipe connecting portions (1a) and (1b), and the two flow paths (A). Both (B) are used as a hot water supply side flow path for supplying hot water to the bathtub (T). That is, when warm water flows into the two compartments (5a) and (5b) of the flow path forming member (3) through the flow paths (A) and (B), the valve member (7 The discharge valves (71) and (71) of (7) are opened, and hot water flows into the discharge chamber (5c) from the compartments (5a) and (5b).

  In the present embodiment, a continuous smooth flat surface is formed by the rear wall surfaces (51a) and (51b) of the compartments (5a) and (5b) and the rear wall surface (51c) of the discharge chamber (5c). Since the warm water flowing from the first and second compartments (5a) (5b) to the discharge chamber (5c) is subjected to a rectifying action by the flat surfaces (51a) (51b) (51c), (51a) (51b) By circulating smoothly along (51c), warm water can be supplied more stably.

  Furthermore, in this embodiment, since warm water is distribute | circulated along the rear wall surface (51a) (51b) (51c) in a division chamber member (50), the discharged warm water is made into the division chamber member (50). ) Along the rear wall (51), that is, along the inner wall surface of the bathtub.

  In this embodiment, the hot water flowing out from the first and second compartment outlets (53a) and (53b) into the discharge chamber (5c) is circulated along the fan-shaped discharge passages (Da) and (Db). Since it is discharged while diffusing in the direction, it is possible to supply hot water dispersed in a wide range along the inner wall surface of the bathtub. For this reason, it is possible to effectively prevent variations and unevenness in the discharged hot water, prevent unevenness in the temperature distribution of the stored hot water, and automatically obtain a comfortable bathing environment free from temperature unevenness from the beginning. be able to.

  In particular, in the present embodiment, since the discharge channels (Da) and (Db) overlap in the discharge chamber (5c), water having different temperatures (for example, high-temperature water and water) is supplied to the two channels (A) and (B). Even in the case where low temperature water or the like is supplied, hot water having a temperature difference is mixed at the overlapping portions of the discharge flow paths (Da) and (Db) in the discharge chamber (5c), so that the temperature Warm water having a uniform temperature distribution without unevenness can be supplied from the discharge port (55) into the bathtub (T).

  In addition, in the present embodiment, since the throttle piece (62) is formed at the discharge port (55), the flow path of the hot water discharged from the discharge port (55) is appropriately narrowed down, so that the hot water is sufficient. The hot water can be supplied vigorously at a flow rate, and the hot water can be supplied in a well-balanced manner in the entire area of the bathtub, coupled with the diffusion of the hot water. For this reason, it is possible to more reliably prevent the temperature distribution of stored hot water from being biased, and to obtain a more comfortable bathing environment.

  On the other hand, when performing a reheating process that reheats the hot water in the bathtub (T), of the two flow paths (A) of the hot water outlet device, the side connected to the forward pipe of the outdoor water heater The flow path functions as a hot water supply flow path, and the flow path on the side connected to the return pipe functions as a suction flow path, so-called forced circulation is performed. For example, when the pipes are connected so that the first channel (A) is the hot water supply side channel and the second channel (B) is the suction side channel, the hot water supplied from the water heater is the first flow. It flows into the first compartment (5a) through the passage (A), opens the discharge valve (71) at the outlet (53a) of the first compartment, flows into the discharge chamber (5c), and discharges the outlet (55 ) And the filter opening (97).

  Here, in the hot water supply side flow path, hot water can be stably supplied into the bathtub by a rectifying action, a diffusing action, a throttling effect, etc., as described above, and the temperature distribution of hot water is reliably prevented. be able to.

  Further, in the suction side flow path, the second compartment (5b) becomes negative pressure due to the negative pressure of the return pipe of the outdoor water heater and the second flow path (B). For this reason, the suction valve (72) of the second suction port (6b) in the flow path forming member (3) is opened by the water pressure in the bathtub (T), and the hot water in the bathtub (T) is filtered by the filter member (9). ) Through the second suction port (6b) and into the second compartment (5b), and then returned to the outdoor water heater through the second channel (B).

  In addition, when the two flow paths (A) and (B) of the hot water outlet device are connected to the forward pipe and the return pipe of the outdoor water heater in the opposite manner, the flow paths (A) and (B) The hot water is circulated in the direction opposite to the above and forcedly circulated.

  Even in this case, in the hot water supply side flow path, hot water can be stably supplied into the bathtub by a rectifying action, a diffusing action, a throttling effect, and the like as described above.

  In the present embodiment, since the discharge valve (71) is disposed in an inclined posture with respect to the discharge flow path (Da) (Db), the length from the proximal end to the distal end of the discharge valve (71) It can be set sufficiently large with respect to the thickness of the channel (Da) (Db) (the dimension between the front and rear walls of the compartment member 50). For this reason, it is possible to ensure a large pushing force (moment) of the discharge valve (71) due to the water pressure. For example, even if the flow rate is low and the water pressure is low, the operation force to the discharge valve (71) can be sufficiently secured. 71) can be opened smoothly, and operational reliability can be improved. In addition, since the change in angle from the closed state to the fully open state is further reduced, the transition from the fully open state to the closed state can be smoothly performed, and the transition from the fully open state to the closed state can be smoothly performed. Can be improved.

  Moreover, since the discharge valve (71) can be opened reliably even if the flow rate of the warm water is small and the water pressure is low, the warm water can be reliably supplied. Furthermore, since the discharge valve (71) can be reliably opened with a lower water pressure, the flow resistance is reduced, and the supply of hot water can be performed more stably.

  In particular, when the water pressure is low and the opening amount of the discharge valve (71) is small, the circulating water is pushed toward the rear wall surfaces (51a) (51b) (51c) by the valve (71), so that the flat rear wall surfaces (51a) (51b) ) (51c) is sufficiently exerted by the rectifying action, and stable supply of warm water can be more reliably performed.

  In addition, the operation reliability of the discharge valve (71) is ensured as described above, and the thickness of the discharge passages (Da) and (Db) (between the front and rear walls 6 and 51 is larger than the size of the discharge valve (71). (Dimension) can be made thin (the dimension between the front and rear walls 6 and 51 can be reduced), the compartment member (50) can be slimmed, the amount of protrusion from the inner wall surface of the bathtub can be reduced, and good aesthetics can be achieved. Can be obtained.

  In this embodiment, the warm water flowing out from the two compartments (5a) and (5b) is once introduced into the discharge chamber (5c) and then discharged into the bathtub through the discharge port (55). Therefore, compared with the case where hot water is discharged into the tank separately from the two compartments, for example, it becomes easier to control the flow rate, directionality, etc. during hot water discharge, and the directionality, etc. is brought into a desired state. It can be set and hot water can be discharged effectively. For example, the hot water discharge position is specified without being changed regardless of which of the two routes is set to the hot water supply side, whether during hot water filling or during additional cooking. Therefore, it is easy to control the discharge direction and the desired discharge performance can be obtained.

  In the present embodiment, since the valve members (7) and (7) having the discharge valve (71) and the suction valve (72) are used integrally, the number of parts can be reduced and the structure can be simplified. And cost reduction can be achieved.

  Furthermore, the four valves of the first and second discharge valves (71) and the first and second suction valves (72) can be assembled simply by assembling the valve members (7) and (7) to the apparatus main body (10). Thus, the number of assembling steps can be reduced, the assembling work can be easily performed, and the cost can be further reduced.

  In addition, a valve support shaft (73) is formed at the connecting portion between the discharge valve (71) and the suction valve (72) in the valve members (7) and (7), and the shaft (73) is connected to the apparatus main body (10). Since it is assembled, the valve members (7) and (7) can be assembled in a stable state, high operational reliability can be obtained for the discharge valve (71) and the suction valve (72), and the quality is improved. be able to.

  Furthermore, since the discharge valve (71) is installed between the compartments (5a), (5b) and the discharge chamber (5c) in the compartment member (50), that is, in the back of the compartment member (50), When cleaning and maintaining the mouth device, the fingertip does not come into contact with the discharge valve (71), and it is possible to reliably prevent problems such as deterioration, breakage, and contamination of the discharge valve due to the contact.

  Moreover, in this embodiment, since the hot water is sucked into the bathtub from the front surface of the apparatus body (10) and the hot water in the bathtub is discharged from the peripheral side surface, a side discharge / front suction system is adopted. For example, at the time of hot water storage, hot water can be smoothly supplied along the inner surface of the bathtub, generation of sound due to scattering of the discharged hot water can be prevented, and hot water can be gently applied. Furthermore, when reheating, the hot water that is discharged spreads along the inner surface of the bathtub all over the inner peripheral surface, and the hot water in the center of the bathtub is sucked into the apparatus, so that the hot water is greatly stabilized in the bathtub. It is possible to effectively prevent a problem (short cycle) that circulates, for example, the discharged hot water is sucked into the apparatus without being circulated, and the reheating process can be performed efficiently and smoothly.

  Furthermore, in this embodiment, since the suction inlets (6a) (6b) of the compartment member (50) are formed by a large number of small holes, the hot water in the bathtub is drawn from the suction openings (6a) (6b). When sucking in, the suction force is dispersed to the periphery, so that dust such as hair floating in the bathtub can be prevented from being sucked into the suction ports (6a) and (6b), and the hair and the like can be separated from the compartment member (50). Can be prevented from being sucked into the vicinity of the suction port or into the apparatus.

  In the above embodiment, the discharge valve is attached to the front wall (lid body) of the partition chamber member. However, the present invention is not limited to this, and the present invention is configured so that the base end side of the discharge valve is the rear wall of the partition chamber member. You may make it attach to. In this case, it is preferable to provide a valve tip installation groove on the front wall of the compartment chamber member, and to form a smooth plane by the front wall surface in the compartment chamber and the front wall surface in the discharge chamber.

  In the present embodiment, the flow restricting piece (62) is formed only in the vicinity of the discharge port (55) in the discharge chamber (5c), and the flow path is narrowed down in a narrow range near the discharge port (55). However, the present invention is not limited thereto. For example, as shown in FIG. 9, the discharge channel (Da) extends over the entire discharge chamber on the back surface side of the lid (6) in the discharge chamber (5c). ) A channel restricting piece (62) that gradually narrows (Db) may be formed to gradually narrow the channel. However, in the present invention, when the direction in which the discharge part in the bathtub projects into the bathtub is the front-rear direction, the downstream end of the discharge flow path is formed so that the front-rear dimension is smaller than the upstream part. As long as it is done, the above-mentioned aperture effect can be obtained.

  Furthermore, in the present embodiment, the case where the flow passage restricting piece is formed in the discharge port peripheral portion (discharge port front edge portion) of the lid (6) has been described as an example. However, the present invention is not limited thereto, and in the present invention. In addition, a flow restrictor piece may be formed on the discharge port peripheral portion (discharge port trailing edge) of the rear wall (51) in the flow channel forming member main body (5), and further, the discharge port front edge portion and the rear edge portion A flow restricting piece may be formed on both sides.

  Moreover, in the said embodiment, although the case where this invention was applied to the non-polar type hot water inlet apparatus was mentioned as an example and demonstrated, this invention is the warm water by which the forward pipe and return pipe which are connected to a water heater are preset. It can also be applied to mouth devices.

  Moreover, in the said embodiment, although comprised so that hot water may be discharged from the outer peripheral side surface of a filter member, you may comprise this invention so that warm water may be discharged from the clearance gap between a filter member and a bathtub inner wall surface. .

  Furthermore, in the above-described embodiment, the description has been given by taking an example of a forced circulation type replenishable device, but the present invention can also be applied to a hot water outlet device that performs only hot water storage processing such as hot water.

  In the present invention, a cross member is provided at the discharge port (55) of the flow path forming member (3) and the discharge opening (97) of the filter member (9), and the discharge chamber (5c) remains one. The discharge port (55) and the discharge opening (97) may be divided into two or more.

  In the present invention, the discharge port is not limited to the outer peripheral wall of the compartment member, and may be provided on the outer peripheral portion of the front wall (lid) or the rear wall.

  The hot-water port device for bathtubs according to the present invention can be used as a hot-water supply port member such as a hot-water adapter provided on the bathtub wall surface when hot water is supplied into the bathtub from an outdoor water heater.

It is sectional drawing which shows the hot water port apparatus for bathtubs which is embodiment of this invention. It is sectional drawing which decomposes | disassembles and shows the hot water port apparatus of embodiment. It is a perspective view which decomposes | disassembles and shows the hot water port apparatus of embodiment. It is side surface sectional drawing which expands and shows the discharge valve periphery in the hot water port apparatus of embodiment. It is a front view which shows the division chamber member main body in the hot water port apparatus of embodiment. It is a schematic diagram for demonstrating the discharge flow path in the partition chamber member of embodiment. It is a front view which shows the cover body of the division chamber member in the hot water port apparatus of embodiment. It is side surface sectional drawing which expands and shows the valve member applied to embodiment. It is side surface sectional drawing which shows the discharge valve periphery of the warm water mouth apparatus which is a modification of this invention.

Explanation of symbols

5a, 5b ... compartment 5c ... discharge chamber 50 ... compartment member 51 ... rear wall 51a, 51b, 51c ... rear wall surface 52a, 52b ... valve tip installation groove 53a, 53b ... compartment outlet 55 ... discharge port 6 ... lid (Front wall)
6a, 6b ... Suction port 71 ... Discharge valve 72 ... Suction valve T ... Bathtub

Claims (8)

A hot water outlet apparatus for a bathtub provided on a bathtub wall,
A compartment member having a rear wall disposed along the bathtub wall surface, a front wall disposed at a distance from the rear wall on the inner side of the bathtub, and an outer peripheral wall provided on an outer periphery between the front and rear walls. And
The compartment member includes a compartment, a discharge chamber, a compartment outlet communicating between the two chambers, a discharge port communicating the discharge chamber with the interior of the bathtub, and a discharge opening provided at the compartment outlet. And the supply water supplied from the outside of the bathtub into the compartment is discharged into the bathtub through the compartment outlet, the discharge chamber, and the discharge port,
The discharge valve has a proximal end fixed to one of the front wall and the rear wall, and a distal end is pushed by the water pressure in the compartment and swings toward the discharge chamber. Configured to open the outlet,
Among the front wall and the rear wall, when the wall corresponding to the proximal end side of the discharge valve is a valve proximal end side wall, and the wall corresponding to the distal end side is a valve distal end side wall,
On the inner surface of the valve tip side wall in the compartment member, a valve tip installation groove is provided corresponding to the tip of the discharge valve,
In the valve closed state, the hot water outlet apparatus for bathtubs is configured such that the tip of the discharge valve is accommodated in the valve tip installation groove.   The hot water inlet apparatus for a bathtub according to claim 1, wherein the front wall is configured as a valve proximal end side wall, and the rear wall is configured as a valve distal end side wall.   The hot water inlet apparatus for bathtubs according to claim 1 or 2, wherein the valve front end side wall surface in the discharge chamber is formed as a continuous smooth surface with respect to the valve front end side wall surface in the compartment.   The hot water inlet apparatus for bathtubs according to any one of claims 1 to 3, wherein the valve front end side wall surface in the compartment and the valve front end side wall surface in the discharge chamber are arranged in the same plane. The compartment has first and second compartments, the compartment outlet has first and second compartment outlets, the discharge valve has first and second discharge valves, and the valve tip The installation groove has first and second valve tip installation grooves,
Supply water supplied from the outside of the bathtub to the first compartment is discharged into the bathtub through the outlet of the first compartment, the discharge chamber, and the discharge port, and from the outside of the bathtub to the second compartment. While the supply water to be supplied is configured to be discharged into the bathtub through the second compartment outlet, the discharge chamber, and the discharge port,
5. The bathtub use according to claim 1, wherein in the valve closed state, the first and second discharge valve tips are accommodated in the first and second valve tip installation grooves. Hot water outlet device.   The hot water outlet apparatus for bathtubs according to claim 5, wherein the first and second compartment outlets are arranged in parallel. The front wall of the compartment member is provided with a first suction port that communicates the inside of the bathtub and the first compartment, and a second suction port that communicates the interior of the bathtub and the second compartment,
6. The first and second suction ports are provided with first and second suction valves that allow water to flow from the inside of the bathtub to the first and second compartments and restrict the backflow of the first and second suction ports, respectively. The hot water outlet apparatus for bathtubs according to 6. A protrusion in the bathtub arranged to protrude inside the bathtub, a discharge flow path is provided in the protrusion in the bathtub, and supply water supplied into the discharge flow path from the outside of the bathtub It is a hot water outlet apparatus for bathtubs that is adapted to be discharged along the inner wall surface of the bathtub from the outer peripheral part of the bathtub protruding part,
A discharge valve is provided in the discharge flow path so as to be openable and closable,
The discharge valve has a base end side fixed to one wall surface of the discharge flow path, and a distal end side is pushed by the water pressure of the supply water flowing through the discharge flow path and swings downstream, whereby the discharge flow path Configured to release
A valve tip installation groove is provided on the wall surface facing the tip side of the discharge valve in the discharge flow path,
In the valve closed state, the hot water outlet apparatus for bathtubs is configured such that the tip of the discharge valve is accommodated in the valve tip installation groove.

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