Guttation device

Abstract

To provide a water discharge device capable of discharging residual water.SOLUTION: A water discharge device A comprises: a body shower 20 that has a water discharge part 22; a water supply channel 68 that supplies water to the water discharge part 22; and a residual water discharge valve 70 that is arranged at a position below the water discharge part 22 in the water supply channel 68 and opens when water supply pressure in the water supply channel 68 decreases.SELECTED DRAWING: Figure 7

Description

Technical Field

[0001] The present disclosure relates to a water discharging device.

Background Art

[0002] Patent Document 1 discloses a shower device in which a mixing faucet is disposed at the upper end of a device main body, and the upper ends of arm-type showers are rotatably attached to both left and right side edges of the device main body. The mixing faucet is a faucet capable of mixing hot water and cold water. In this specification, hot water and cold water are collectively referred to as water. The water is supplied from the mixing faucet to the arm-type shower and discharged from the nozzle.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] After the use of the arm-type shower, the remaining water in the arm-type shower is discharged from the nozzle. Since the nozzle is located above the lowermost end of the arm-type shower, a small amount of water remains in the arm-type shower. Since the water in the arm-type shower cools over time, cold water is discharged from the nozzle at the start of the next use.

[0005] The present disclosure has been made in view of the above conventional circumstances, and has an object to solve the problem of discharging the remaining water.

Means for Solving the Problems

[0006] The water discharging device of the present disclosure includes a body shower having a water discharging portion, a water supply path for supplying water to the water discharging portion, and a remaining water discharge valve that is disposed at a position below the water discharging portion in the water supply path and opens by a decrease in the water supply pressure in the water supply path.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Modes for Carrying Out the Invention

[0008] <Embodiment 1> As shown in Fig. 9, the water spraying device A of Embodiment 1 embodying the present disclosure is arranged such that the back surface R of the water spraying device A is overlapped with the wall surface W of the bathroom and is used in a state of being attached to the wall surface W. Fig. 9 is a cross-sectional view obtained by cutting the side edge portion of the water spraying device A at a right angle to the wall surface W, showing the structures of the guiding path 80 and the drain port 83 described later. Regarding the direction of the water spraying device A, it is defined in a state where the water spraying device A is attached to the wall surface W. The front-rear direction is the direction orthogonal to the wall surface W. The front side of the water spraying device A (the positive direction side of the X-axis in Figs. 1, 2, 4, 6, 8 to 12) is defined as the front, and the back side R of the water spraying device A is defined as the rear. The front-rear direction and the depth direction are used synonymously. Regarding the up-down direction, the ceiling side of the bathroom (the positive direction side of the Z-axis in Figs. 1 to 12) is defined as the upper side, and the floor surface side of the bathroom is defined as the lower side. Regarding the left-right direction, when the user faces the front F of the water spraying device A in the bathroom, the right side of the user (the positive direction side of the Y-axis in Figs. 1 to 3, 5, 7, 8, 10) is defined as the right side, and the left side of the user is defined as the left side. The left-right direction and the width direction are used synonymously.

[0009] <Overview of the water spraying device A> As shown in Fig. 1, the water spraying device A includes a device main body 10, one hand shower 15, and a pair of left and right body showers 20. The device main body 10 has a housing 11, a shower switching valve 30, a handle 52, and a residual water discharge valve 70. The housing 11 is generally rectangular. The front F view shape of the housing 11 is a rectangle in which the height dimension in the up-down direction is larger than the width dimension in the left-right direction. The depth dimension of the housing 11 in the front-rear direction is smaller than the width dimension.

[0010] As shown in Fig. 2, a faucet connection portion 13 is provided on the bottom surface 12 of the housing 11. The faucet connection portion 13 is arranged to the left of the center in the left-right direction on the bottom surface 12 of the housing 11. A water supply hose (not shown) extending from a faucet main body (not shown) is connected to the faucet connection portion 13. The faucet main body has a water flow rate adjustment function portion, a water temperature adjustment function portion, a faucet, and a water flow path switching valve. The flow path switching valve switches between the water spraying mode from the faucet and the water spraying mode from the water spraying device A.

[0011] As shown in Fig. 2, a shower connection part 14 is provided on the bottom surface 12 of the housing 11. The shower connection part 14 is arranged to the right of the center in the left - right direction on the bottom surface 12 of the housing 11. The upstream end of a shower hose 16 (see Fig. 1) of a hand - held shower 15 is connected to the shower connection part 14. A shower head 17 is connected to the downstream end of the shower hose 16. A head holding part 18 for holding the shower head 17 is attached to the wall surface W.

[0012] A pair of left - right body showers 20 includes a pair of left - right arms 21 (see Fig. 1), a pair of left - right balancers 26 (see Fig. 2), and a pair of left - right braking mechanisms (not shown). A plurality of water ejection parts 22 are provided on the arms 21. The plurality of water ejection parts 22 are arranged at intervals along the length direction of the arms 21. A water passage (not shown) is formed in the arms 21 from the base end part 23 to the tip end part 24 of the arms 21. The plurality of water ejection parts 22 communicate with the water passage.

[0013] The base end part 23 of the arm 21 is supported at the lower end part on the outer surface of the housing 11. The arm 21 is rotatable in the vertical direction between a storage position shown by an imaginary line in Fig. 1 and a use position shown by a solid line in Fig. 1 about a virtual axis 25 in the left - right direction passing through the base end part 23. The arm 21 in the storage position takes an upright posture with the tip end part 24 of the arm 21 facing directly upward and is arranged along the outer surface of the housing 11. The arm 21 in the use position takes a posture in which the arm 21 protrudes obliquely upward and forward from the base end part 23.

[0014] Balancer 26 consists of a torsion spring arranged to surround the virtual axis 25, and imparts rotational elasticity to the arm 21. Due to the elastic rotational force of the balancer 26, the downward moment caused by the self-weight of the arm 21 is reduced. When the arm 21 is displaced from the use position to the storage position, the operating force applied to the arm 21 is reduced by the elastic force of the balancer 26. The braking mechanism has a disc spring. The braking mechanism restricts the rotational movement of the arm 21 by the frictional resistance caused by the elastic force of the disc spring. By the braking force of the braking mechanism, the arm 21 can be held at an arbitrary position between the storage position and the use position.

[0015] <Shower switching valve 30> The shower switching valve 30 is arranged at the lower end in the housing 11 in the vertical direction and at the central part of the housing 11 in the horizontal direction. As shown in FIG. 2, a box-shaped bracket 31 is fixed to the upper surface of the bottom plate portion 19 of the housing 11. The shower switching valve 30 is fixed in a state of being placed on the upper surface of the bracket 31.

[0016] As shown in FIGS. 3 to 6, the shower switching valve 30 has a cylindrical valve box 32 with its axis oriented in the vertical direction, a valve body 38, and a valve rod 39 that is elongated in the vertical direction. The valve box 32 is composed of a plurality of assembled parts. A valve passage 33 extending in the vertical direction is formed in the valve box 32. FIG. 3 is a cross-sectional view of the shower switching valve 30 cut parallel to the wall surface W and viewed from the front F side of the water discharge device A in a state where the handle 52 described later is in the initial position. FIG. 4 is a cross-sectional view of the shower switching valve 30 cut along a vertical plane perpendicular to the wall surface W in a state where the handle 52 is in the initial position. FIG. 5 is a cross-sectional view of the shower switching valve 30 cut parallel to the wall surface W and viewed from the front F side of the water discharge device A in a state where the handle 52 is in the operating position. FIG. 6 is a cross-sectional view of the shower switching valve 30 cut along a vertical plane perpendicular to the wall surface W in a state where the handle 52 is in the operating position.

[0017] As shown in FIGS. 3 and 5, an inlet 34 communicating with a valve passage 33 is formed in a valve box 32. The downstream end of a shower water supply pipe 35 extending from a faucet connection part 13 is connected to the inlet 34. In the valve passage 33, an upper valve seat 36 positioned above the inlet 34 and a lower valve seat 37 positioned below the inlet 34 are provided.

[0018] A valve body 38 is accommodated in the valve passage 33. The valve body 38 moves up and down between the upper valve seat 36 and the lower valve seat 37. A valve rod 39 moves up and down integrally with the valve body 38. The lower end part of the valve rod 39 extends downward from the valve box 32. As shown in FIGS. 4 and 6, a connecting member 40 is fixed to the lower end part of the valve rod 39 by a lock nut 41. A connecting hole 42 penetrating in the front-rear direction is formed in the connecting member 40. The connecting member 40 functions as a connecting part on the valve body 38 side.

[0019] As shown in FIGS. 3 and 5, a hand shower outlet 43 communicating with a passage on the downstream side of the upper valve seat 36 in the valve passage 33 is formed in the valve box 32. The upstream end of a hand shower pipe 44 is connected to the hand shower outlet 43. The downstream end of the hand shower pipe 44 is connected to a shower connection part 14.

[0020] A body shower outlet 45 communicating with a flow path on the downstream side of the lower valve seat 37 in the valve passage 33 is formed in the valve box 32. The upstream end of a bent body shower pipe 46 is connected to the body shower outlet 45. As shown in FIG. 2, a part on the upstream end side of the body shower pipe 46 is constituted by an upper pipe 47 having a U-shaped planar view shape. A part on the downstream side of the body shower pipe 46 is constituted by a lower pipe 48 extending downward from the downstream end of the upper pipe 47.

[0021] As shown in FIGS. 2 and 7, a branch portion 49 is provided at the downstream end of the body shower pipe 46. The branch portion 49 is located below the lower pipe 48 and is disposed at the lower end portion within the housing 11. The upstream ends of a pair of left and right branch pipes 50 are connected to the branch portion 49. One branch pipe 50 extends horizontally to the right from the branch portion 49. The other branch pipe 50 extends horizontally to the left from the branch portion 49. The downstream end of each branch pipe 50 is connected to the base end portion 23 of each arm 21 and communicates with the upstream end of the water passage within the arm 21. The upstream end of the water passage is located at the lowermost end of the water passage regardless of whether the body shower 20 is in the use position or the storage position. The water discharge portion 22 is disposed with a space between the upstream end and the downstream end of the water passage.

[0022] In a state where the valve body 38 abuts against the upper valve seat 36, the inlet 34 and the body shower outlet 45 communicate with each other, and water supply from the shower switching valve 30 to the body shower 20 becomes possible. This state is defined as the water supply mode to the body shower 20 in the shower switching valve 30. In a state where the valve body 38 abuts against the lower valve seat 37, the inlet 34 and the hand shower outlet 43 communicate with each other, and water supply from the shower switching valve 30 to the hand shower 15 becomes possible. This state is defined as the water supply mode to the hand shower 15 in the shower switching valve 30. By the up and down movement of the valve body 38, the shower switching valve 30 switches between the water supply mode to the body shower 20 and the water supply mode to the hand shower 15.

[0023] <Handle 52> As shown in FIG. 10, the handle 52 includes a rotating shaft 53, a handle main body 54, a support shaft 62, a weight 63, and a connecting bar 64. The rotating shaft 53 is supported by the bracket 31 with its axis oriented in the left-right direction. The handle 52 is rotatable between an initial position (see FIGS. 3, 4, and 11) and an operation position (see FIGS. 5, 6, and 12) with the rotating shaft 53 as a fulcrum. The rotation angle between the initial position and the operation position is approximately 45°. Regarding the directions in the following description of the handle 52, the state where the handle 52 is in the initial position is taken as a reference.

[0024] The handle body 54 is a single component made of synthetic resin having a base portion 55, one operating portion 56, and a pair of protrusions 59. In a side view of the handle 52 seen from the side, the base portion 55 forms an inverted triangle whose front - to - rear dimension decreases downward. The operating portion 56 has a base portion 57 protruding obliquely downward and forward from the base portion 55 and a finger - hook portion 58 extending horizontally forward from the base portion 57. The operating portion 56 is shaped to protrude forward from the base portion 55 as a whole. Regardless of whether the handle 52 is in the initial position or the operating position, the operating portion 56 is located below the bottom surface 12 of the housing 11.

[0025] The pair of protrusions 59 project upward from the upper surface of the base portion 55 with a space therebetween in the left - right direction. Bearing holes 60 penetrating the protrusions 59 in the left - right direction are formed at the front end portions of both the left and right protrusions 59. The rotary shaft 53 penetrates both the left and right bearing holes 60. Support holes 61 penetrating the protrusions 59 in the left - right direction are formed at the rear end portions of both the left and right protrusions 59 at substantially the same height as the bearing holes 60. The support shafts 62 penetrate both the left and right support holes 61. A metal weight 63 is embedded at the upper end portion of the protrusion, that is, at a position above the bearing holes 60 and the support holes 61. In the front - to - rear direction, the weight 63 is disposed behind the rotary shaft 53. The rotary shaft 53, the support shaft 62, and the weight 63 are located above the operating portion 56.

[0026] A longitudinally elongated connecting bar 64 is disposed between the pair of left and right protrusions 59. A pair of through - holes 65 penetrating the connecting bar 64 in the left - right direction are formed at both the front and rear end portions of the connecting bar 64. The rotary shaft 53 penetrates the front - side through - hole 65. The support shaft 62 penetrates the rear - side through - hole 65. The connecting bar 64 functions as a connecting portion on the handle 52 side.

[0027] When the handle 52 rotates from the initial position to the operating position, the operating portion 56 is displaced from a form protruding forward from the base portion 55 to a form protruding downward. The connecting bar 64 moves upward about the rotary shaft 53 and assumes a form protruding obliquely upward and rearward from the rotary shaft 53. The weight 63 is displaced to a position closer to the rotary shaft 53 than the initial position in the front - to - rear direction.

[0028] The lower end of the handle 52 and the valve rod 39 are connected via a connecting member 40 and a connecting bar 64. In the connected state, the connecting bar 64 penetrates the connecting hole 42 of the connecting member 40 in the front-rear direction. The upper surface of the connecting bar 64 abuts against the upper surface of the connecting hole 42, and the connecting bar 64 supports the connecting member 40 from below. The connecting member 40 and the connecting bar 64 are capable of relative displacement in the vertical direction and also capable of relative displacement in the front-rear direction. The self-weights of the valve body 38, the valve rod 39, and the connecting member 40 are supported by the handle 52 via the connecting bar 64. The portion where the connecting member 40 and the connecting bar 64 contact is behind the rotation axis 53.

[0029] The valve body 38, the valve rod 39, the connecting member 40, and the handle 52 constitute an interlocking member 66. When the shower switching valve 30 switches between the water supply mode to the body shower 20 and the water supply mode to the hand shower 15, the interlocking member 66 moves integrally. The integral movement of the interlocking member 66 means that, while maintaining the state where the interlocking member 66 is connected, the handle 52 undergoes relative displacement with respect to the valve body 38, the valve rod 39, and the connecting member 40. When the interlocking member 66 moves integrally, the handle 52 rotates with the rotation axis 53 as a fulcrum, and the valve body 38, the valve rod 39, and the connecting member 40 move in the vertical direction.

[0030] When the handle 52 rotates from the initial position to the operating position, the valve body 38 rises and abuts against the upper valve seat 36, and the lower valve seat 37 is opened. Therefore, the shower switching valve 30 switches from the water supply mode to the hand shower 15 to the water supply mode to the body shower 20. When the handle 52 rotates from the operating position to the initial position, the valve body 38 descends and abuts against the lower valve seat 37, and the upper valve seat 36 is opened. Therefore, the shower switching valve 30 switches from the water supply mode to the body shower 20 to the water supply mode to the hand shower 15.

[0031] As shown in FIG. 11, when the handle 52 is in the initial position, the center of gravity G1 of the interlocking member 66 is located at substantially the same height as the rotation axis 53 in the vertical direction. The center of gravity G1 of the interlocking member 66 in the initial position is located between the rotation axis 53 and the axis 67 of the valve body 38 and the valve rod 39 in the front-rear direction. As shown in FIG. 12, when the handle 52 is in the operating position, the center of gravity G1 of the interlocking member 66 is at a position higher than the rotation axis 53 and the center of gravity G1 in the initial position in the vertical direction. The center of gravity G1 of the interlocking member 66 in the operating position is located behind the center of gravity G1 in the initial position in the front-rear direction, that is, behind the axis 67 of the valve body 38 and the valve rod 39.

[0032] Regardless of whether the handle 52 is in any position between the initial position and the operating position, the center of gravity G1 of the interlocking member 66 is located behind the rotation axis 53. Due to the moment (i.e., rotational torque) caused by the self-weight of the interlocking member 66, a rotational force in the direction of displacing the operation portion 56 upward, that is, in the direction from the operating position to the initial position, always acts on the handle 52.

[0033] <Residual water discharge valve 70 and guide path 80> The residual water discharge valve 70 is a normally open type on-off valve for discharging the water remaining in the water supply path 68 for supplying water to the body shower 20 after the use of the body shower 20. The water supply path 68 is composed of the body shower outflow port 45 of the shower switching valve 30, the body shower pipe 46, the branch pipe 50, Inside the arm 21 and the like water passage. The branch portion 49 and the branch pipe 50 are arranged at the lowest position in the water supply path 68. The residual water discharge valve 70 is attached to the branch portion 49 and communicates with the lower end of the branch portion 49.

[0034] As shown in FIG. 7, the residual water discharge valve 70 is assembled and configured with a housing 71 having its axis in the vertical direction, a valve body 76, and a compression coil spring 77. FIG. 7 is a cross-sectional view obtained by cutting the residual water discharge valve 70 parallel to the wall surface W and viewed from the front F side of the water discharge device A. The housing 71 is a single component having a cylindrical portion 72 with its axis in the vertical direction, a lid portion 73 located below the cylindrical portion 72, and a pair of connecting portions 74 connecting the lower end portion of the cylindrical portion 72 and the lid portion 73. A valve seat 75 is formed on the inner periphery of the cylindrical portion 72. The valve seat 75 is arranged at a position lower than the lowest position in the water supply passage 68.

[0035] The valve body 76 is adapted to move up and down within the cylindrical portion 72. When the valve body 76 abuts against the valve seat 75, the residual water discharge valve 70 is closed. When the valve body 76 moves upward and separates from the valve seat 75, the residual water discharge valve 70 is in an open state. The valve body 76 is biased upward, i.e., in the opening direction, by a compression coil spring 77 disposed at the lower end portion within the cylindrical portion 72. The upper surface of the valve body 76 faces the water supply passage 68 for supplying water to the body shower 20. When water is supplied into the water supply passage 68, the water supply pressure in the water supply passage 68 acts on the valve body 76.

[0036] Below the valve seat 75, a drain hole 78 is formed to communicate the internal space of the cylindrical portion 72 and the space below the cylindrical portion 72. The drain hole 78 opens so as to face a guiding path 80 provided on the upper surface of the bottom plate portion 19 of the housing 11. In the region below the residual water discharge valve 70 in the guiding path 80, a fitting hole 81 penetrating the bottom plate portion 19 vertically is formed. The fitting hole 81 is closed by the lid portion 73 of the residual water discharge valve 70.

[0037] As shown in FIGS. 7 to 9, the guiding path 80 is a groove-shaped portion partitioned by a partition wall portion 82 formed on the upper surface of the bottom plate portion 19. As shown in FIGS. 8 and 9, a pair of left and right drain ports 83 that open to the bottom surface 12 of the housing 11 are formed in the bottom plate portion 19. The guiding path 80 has an inclined surface 84 that is inclined so as to gradually become lower from directly below the drain hole 78 to the drain port 83. The pair of drain ports 83 are arranged at both left and right ends of the housing 11 in the left-right direction. The pair of drain ports 83 are shaped such that the edge portion on the rear surface R side of the bottom plate portion 19 is cut out in the front-rear direction and open to the rear surface R of the housing 11. In a plan view of the bottom plate portion 19 seen from above, the opening area and the opening shape of the drain port 83 are set so that water does not block the drain port 83 due to surface tension. Ribs 85 that project downward in a wall shape from the bottom surface 12 of the housing 11 are formed on both left and right edge portions and the front edge portion of the opening of the drain port 83.

[0038] <Usage form of the water discharging device A> In the water shut-off state where water is not supplied to the shower switching valve 30, since the water supply pressure does not act on the valve body 38, the handle 52 is held in the initial position by the moment (rotational force) acting on the handle 52 due to the weight of the interlocking member 66. The moment is a force that generates a rotational torque in the direction of raising the operating portion 56 around the rotation shaft 53. Even if the handle 52 is rotated from the initial position to the operating position, the handle 52 returns to the initial position. The shower switching valve 30 is held in the water supply mode to the hand shower 15. Since the water supply pressure does not act on the valve body 76 of the residual water discharge valve 70, the valve body 76 is separated from the valve seat 75 by the biasing of the compression coil spring 77, and the residual water discharge valve 70 is held in the open state.

[0039] When using the body shower 20 from the water shut-off state, with the handle 52 in the initial position, the water supply from the faucet body to the shower switching valve 30 is started. The water supplied to the shower switching valve 30 is discharged from the shower head 17 via the hand shower pipe 44 and the shower hose 16. The user can adjust the temperature and flow rate of the water while preventing the water discharged from the shower head 17 from hitting the body.

[0040] After adjusting the temperature and flow rate of the water, while maintaining the water discharge state from the hand shower 15, press down the operation part 56 of the handle 52 and rotate the handle 52 from the initial position to the operation position. When the handle 52 is rotated to the operation position, the shower switching valve 30 switches to the water supply mode to the body shower 20, and water is discharged from the water discharge part 22 of the body shower 20 through the water supply path 68. In the water stop state, as will be described later, the remaining water in the water supply path 68 to the body shower 20 is discharged by the remaining water discharge valve 70, so when the water supply to the body shower 20 is started, no remaining water is discharged from the water discharge part 22.

[0041] In the state where water is being discharged from the body shower 20, the valve body 38 of the shower switching valve 30 is held in a state of abutting against the upper valve seat 36 by the upward water supply pressure. Even if the hand is released from the operation part 56, the handle 52 is held in the operation position, and the shower switching valve 30 is held in the water supply mode to the body shower 20. In the remaining water discharge valve 70 provided in the middle of the water supply path 68, since the water supply pressure acts on the upper surface of the valve body 76, the remaining water discharge valve 70 is kept in the closed valve state. The water in the water supply path 68 is supplied to the body shower 20 without leaking from the remaining water discharge valve 70 to the guide path 80.

[0042] When finishing the water discharge from the body shower 20, operate the faucet body to stop the water supply to the shower switching valve 30. When the water supply to the shower switching valve 30 is stopped, the water supply pressure in the water supply path 68 from the shower switching valve 30 to the water discharge part 22 and the water supply pressure in the remaining water discharge valve 70 decrease. In the remaining water discharge valve 70, the valve body 76 is separated from the valve seat 75 by the biasing force of the compression coil spring 77, and the remaining water discharge valve 70 opens. The water in the water supply path 68 is discharged from the opened remaining water discharge valve 70 to the guide path 80. In the shower switching valve 30, the valve body 38 descends due to the weight of the interlocking member 66, and switches from the water supply mode to the body shower 20 to the water supply mode to the hand shower 15. As the valve body 38 descends, the handle 52 returns from the operation position to the initial position.

[0043] When using the hand shower 15 after using the body shower 20, push up the operation part 56 and rotate the handle 52 from the operation position to the initial position. As the handle 52 rotates, the shower switching valve 30 switches to the water supply mode for the hand shower 15, and water is discharged from the hand shower 15. In the water supply path 68 from the shower switching valve 30 to the body shower 20 and the residual water discharge valve 70, since the water supply pressure decreases, the residual water discharge valve 70 opens, and the residual water in the water supply path 68 is discharged into the guide path 80 from the drain hole 78.

[0044] The residual water discharged into the guide path 80 flows toward both the left and right drain ports 83 due to the inclination of the guide path 80. The residual water falls from the drain port 83. Since the wall-like rib 85 protrudes downward at the opening edge of the drain port 83, the residual water travels from the upper surface (inclined surface 84) of the guide path 80 along the inner surface of the rib 85 and falls from the lower end edge of the rib 85. The residual water does not flow into the bottom surface 12 of the housing 11.

[0045] <Effect of the water discharge device A of Embodiment 1> The water discharge device A includes a body shower 20 having a water discharge part 22, a water supply path 68 for supplying water to the water discharge part 22, and a residual water discharge valve 70. The body shower 20 has an arm 21 shape and is rotatably supported by the housing 11 of the device main body 10. The residual water discharge valve 70 is disposed at a position below the water discharge part 22 in the water supply path 68. The residual water discharge valve 70 opens due to a decrease in the water supply pressure in the water supply path 68.

[0046] When the water discharge from the water discharge part 22 of the body shower 20 ends and the water supply pressure in the water supply path 68 decreases, the residual water discharge valve 70 opens and the residual water in the water supply path 68 is discharged. Since the residual water discharge valve 70 is disposed below the water discharge part 22, the water between the water discharge part 22 and the residual water discharge valve 70 can be discharged.

[0047] The water discharging device A includes a hand shower 15 having a flexible shower hose 16 and a shower switching valve 30. The shower switching valve 30 switches between a water supply mode to the body shower 20 and a water supply mode to the hand shower 15. The water supply passage 68 is a flow passage extending from the shower switching valve 30 to the water discharging portion 22. The residual water discharge valve 70 is disposed at the lowest position in the water supply passage 68. All the residual water in the water supply passage 68 between the shower switching valve 30 and the water discharging portion 22 can be discharged.

[0048] A pair of body showers 20 are supported on the left and right outer edge portions of the housing 11. The residual water discharge valve 70 is disposed inside the housing 11 that supports the body shower 20. Since the residual water discharge valve 70 is not exposed outside the housing 11, the design property is good. Only one residual water discharge valve 70 is required.

[0049] The water supply passage 68 has two branch pipes 50 that communicate individually with the pair of body showers 20. One residual water discharge valve 70 is disposed at the confluence position of the two branch pipes 50. According to this configuration, the residual water in the two branch pipes 50 can be efficiently discharged.

[0050] The water discharging device A includes a housing 11 that houses the residual water discharge valve 70 and a drain port 83 that opens in the vicinity of the outer edge portion of the bottom surface 12 of the housing 11. The residual water discharged from the residual water discharge valve 70 falls from the vicinity of the outer edge portion of the housing 11. It is possible to prevent the residual water from falling into the faucet body disposed at the center in the width direction of the housing 11 or into the washbasin placed at the center in the width direction of the housing 11.

[0051] The body shower 20 is attached to the outer edge portion of the housing 11. The falling position of the residual water discharged from the residual water discharge valve 70 and the falling position of the residual water discharged from the water discharging portion 22 are in a positional relationship close to each other. Compared with the case where the falling positions of the residual water are dispersed, the falling state of the residual water is less likely to be a concern.

[0052] The water discharging device A includes a housing 11 that houses a residual water discharge valve 70. The housing 11 is fixed to the bathroom wall surface W with the back surface R of the housing 11 overlapped therewith. A drain port 83 that opens to the back surface R of the housing 11 is formed on the bottom surface 12 of the housing 11. Since the falling position of the residual water is close to the wall surface W, it is difficult to be concerned about the falling situation of the residual water.

[0053] An induction path 80 for guiding the residual water discharged from the residual water discharge valve 70 to the drain port 83 by an inclined surface 84 is provided on the bottom plate portion 19 of the housing 11. The residual water discharged from the residual water discharge valve 70 can be reliably discharged from the drain port 83. The bottom surface 12 of the housing 11 has a rib 85 that protrudes downward from the opening edge of the drain port 83. The rib 85 can prevent the residual water from flowing down from the opening edge of the drain port 83 to the bottom surface 12 of the housing 11. The residual water falls surely.

[0054] The drain port 83 is in a form in which only a part of the bottom surface 12 of the housing 11 in the width direction of the housing 11 is opened. The drain port 83 is in a form in which only a part of the housing 11 in the depth direction is opened. Since the falling position of the residual water is limited to a narrow range, it is difficult to be concerned about the falling situation of the residual water.

[0055] The water discharging device A of the first embodiment includes a hand shower 15 having a flexible shower hose 16, a body shower 20 in the shape of an arm 21 that is rotatably supported, a shower switching valve 30, and a handle 52. The shower switching valve 30 has a valve body 38 that can move up and down. The shower switching valve 30 switches between a water supply mode to the hand shower 15 and a water supply mode to the body shower 20. The valve body 38 in the water supply mode to the body shower 20 is located above the valve body 38 in the water supply mode to the hand shower 15. The handle 52 is connected to the valve body 38 via a valve rod 39. The handle 52 can be switched between an initial position for switching the shower switching valve 30 to the water supply mode to the hand shower 15 and an operation position for switching the shower switching valve 30 to the water supply mode to the body shower 20.

[0056] When water is supplied to the shower switching valve 30 and the handle 52 is in the operating position, the shower switching valve 30 is held in the water supply mode to the body shower 20 by the water supply pressure acting on the valve body 38. When the water supply to the shower switching valve 30 stops, the handle 52 returns to the initial position due to the self-weight of the interlocking member 66 including the valve body 38, the valve rod 39, and the handle 52. When the water is shut off after using the body shower 20, the handle 52 returns from the operating position to the initial position due to the self-weight of the interlocking member 66, and the shower switching valve 30 switches to the water supply mode to the hand shower 15. The operation of the handle 52 for returning from the water supply mode to the body shower 20 to the water supply mode to the hand shower 15 is unnecessary.

[0057] When the handle 52 is in the operating position and water is being supplied to the shower switching valve 30, the downward pushing force acting on the valve body 38 due to the self-weight of the interlocking member 66 is smaller than the upward pushing force acting on the valve body 38 due to the water supply pressure. According to this configuration, it is possible to maintain the water supply state to the body shower 20 only by the water supply pressure without using an external force such as a spring force for pushing up the valve body 38.

[0058] The water discharge device A includes a device main body 10 that houses the shower switching valve 30 therein and a horizontal rotation shaft 53 that rotatably supports the handle 52. The handle 52 has an operation portion 56 located below the device main body 10. When the handle 52 is in the initial position, the operation portion 56 projects horizontally toward the front F side of the device main body 10. According to this configuration, it is easy to visually recognize that the handle 52 has returned to the initial position.

[0059] When the handle 52 is in the initial position, the connecting member 40, which is the connecting part between the valve rod 39 and the handle 52, and the connecting bar 64 are located on the side opposite to the operation part 56 with respect to the rotation axis 53 in the horizontal direction, that is, behind the rotation axis 53. When the handle 52 is in the use position, the operation part 56 protrudes obliquely downward. The manual operation of the handle 52 required when using the body shower 20 from the water stop state is only the operation of rotating the handle 52 from the initial position to the operation position. Since this operation is an operation of pushing down the operation part 56 that protrudes horizontally forward, it has better operability than the case of pushing up the operation part 56.

[0060] <Other embodiments> The present disclosure is not limited to the embodiments described by the above description and drawings. For example, the following embodiments are also included in the technical scope of the present disclosure.

[0061] (1) The residual water discharge valve may be arranged with two residual water discharge valves inside a pair of body showers, or one residual water discharge valve may be arranged inside one of the body showers, or a plurality of residual water discharge valves may be arranged inside the housing and inside the body shower.

[0062] (2) One residual water discharge valve may be provided in the middle of either one of the two branch pipes, or one residual water discharge valve may be provided on each of the two branch pipes.

[0063] (3) The position of the drain port in the width direction of the housing may be at the center position in the width direction of the housing, or at a position between the central part in the width direction and the outer edge part.

[0064] (4) The position of the drain port in the front-rear direction of the housing may be a position closer to the front than the back surface of the housing.

[0065] (5) There may be only one body shower.

[0066] (6) The residual water discharge valve may be arranged at a position higher than the lowest position in the water supply path.

[0067] (7) The drain outlet may be in a form that opens across the entire width of the housing.

[0068] (8) The mounting position of the body shower on the housing may be a part other than the outer edge of the housing.

[0069] (9) The drain outlet may be in a form where ribs are not formed on the opening edge.

Explanation of Reference Signs

[0070] A... Water discharging device, R... Rear surface of the housing, W... Wall surface, 11... Housing, 12... Bottom surface of the housing, 15... Hand shower, 16... Shower hose, 20... Body shower, 22... Water discharging part, 30... Shower switching valve, 50... Branch pipe, 68... Water supply path, 70... Residual water discharge valve, 80... Guide path, 83... Drain outlet, 84... Inclined surface, 85... Rib

Claims

1. A body shower having an arm provided with a water discharge part, A hand shower having a flexible shower hose, A shower switching valve for switching between a mode of discharging water from the body shower and a mode of discharging water from the hand shower, A water supply passage that is a passage from the shower switching valve to the water discharge part and supplies water to the water discharge part, A residual water discharge valve that is disposed at a position below the water discharge part in the water supply passage and opens when the water supply pressure in the water supply passage decreases, The arm is rotatable in the vertical direction between a storage position in which the tip of the arm is oriented upward about an imaginary axis passing through the base end of the arm and a use position in which the arm projects obliquely upward from the base end, A water discharge device in which the residual water discharge valve is disposed at the lowest position in the water supply passage.

2. A body shower having a water discharge part, A water supply passage that supplies water to the water discharge part, A residual water discharge valve that is disposed at a position below the water discharge part in the water supply passage and opens when the water supply pressure in the water supply passage decreases, A housing that rotatably supports the body shower, A drain port that is formed on the bottom surface of the housing and opens to the back surface of the housing, The body shower is attached to the outer edge of the housing, A water discharge device in which the housing is fixed in a state where the back surface is overlapped with the wall surface of the bathroom.

3. The water discharge device according to claim 1, comprising a housing that rotatably supports the body shower.

4. The water supply passage has two branch pipes that communicate individually with a pair of the body showers, The water discharge device according to any one of claims 2 to 3, wherein one residual water discharge valve is disposed at the confluence position of the two branch pipes.

5. The water discharge device according to any one of claims 2 to 4, wherein the residual water discharge valve is disposed in either the interior of the housing or the interior of the body shower.

6. A pair of the body showers are supported on the left and right outer edges of the housing, The water discharge device according to any one of claims 2 to 5, wherein the residual water discharge valve is disposed in the housing.

7. The water discharge device according to any one of claims 2 to 6, wherein the body shower is attached to the outer edge of the housing.

8. The casing houses the residual water discharge valve, and is the water discharging device according to any one of Claims 2 to 7.

9. The water discharging device according to Claim 8, further comprising a drain port that opens near the outer edge of the bottom surface of the casing.

10. The water discharging device according to any one of Claims 2 to 9, wherein a guiding path for guiding the residual water discharged from the residual water discharge valve to the drain port by an inclined surface is provided on the bottom plate portion of the casing.

11. The water discharging device according to any one of Claims 9 and 10, wherein the drain port is formed to open only a part in the width direction of the bottom surface of the casing and only a part in the depth direction of the casing.

12. The water discharging device according to Claim 11, wherein the bottom surface of the casing has ribs protruding downward from the opening edge of the drain port.

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