Guttation device

Abstract

To provide a water discharge device that eliminates the need for switching operation to a hand shower.SOLUTION: A water discharge device A comprises: a hand shower 15; a body shower 20; a shower switching valve 30 that switches between a water supply mode for the hand shower 15 and a water supply mode for the body shower 20; a handle 52 that is connected to a valve body 38 and is displaceable between an initial position for switching the shower switching valve 30 to the water supply mode for the hand shower 15 and an operation position for switching the shower switching valve 30 to the water supply mode for the body shower 20. When the handle 52 is in the operating position, the shower switching valve 30 is kept in the water supply mode to the body shower 20 by the water supply pressure. When water supply to the shower switching valve 30 is stopped, the handle 52 returns to the initial position by dead weight of an interlocking member 66 including the valve body 38 and the handle 52.SELECTED DRAWING: Figure 4

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 upper ends of arm-shaped showers are rotatably attached to left and right side edges of a device main body. When using the shower device, the angle of the arm-shaped shower and the orientation of the nozzle are adjusted according to the position where the user sits and the build of the user. The user can be showered with water discharged from the nozzle of the arm-shaped shower. The water in this specification generically refers to hot water and cold water.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The shower device of Patent Document 1 can be provided with a hand shower. When using the arm-shaped shower at intervals, the temperature and flow rate of water can be adjusted in a state where water is discharged from the hand shower in advance, so that the user can avoid being showered with cold water or normal-temperature water discharged from the arm-shaped shower. However, in order to adjust the temperature and flow rate of water by the hand shower, after using the arm-shaped shower, a switching operation for switching from the water supply state to the arm-shaped shower to the water supply state to the hand shower is required.

[0005] The present disclosure has been made in view of the above conventional situation, and has an object to solve the problem of eliminating the switching operation to the hand shower.

Means for Solving the Problems

[0006] The water discharge device of the present disclosure is a first water discharge member that discharges water, a second water discharge member that discharges water, a water supply mode switching valve having a valve body that can move up and down, and switching between a water supply mode to the first water discharge member and a water supply mode to the second water discharge member, a handle connected to the valve body and displaceable between an initial position for switching the water supply mode switching valve to the water supply mode to the first water discharge member and an operation position for switching the water supply mode switching valve to the water supply mode to the second water discharge member, When water is supplied to the water supply mode switching valve and the handle is in the operation position, the water supply mode switching valve is held in the water supply mode to the second water discharge member by the water supply pressure acting on the valve body, When the water supply to the water supply mode switching valve stops, the handle returns to the initial position due to the self-weight of the interlocking member including the valve body and the handle.

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

Figure 13

Figure 14

Figure 15

Figure 16

Mode for Carrying Out the Invention

[0008] <Embodiment 1> As shown in FIG. 9, the water discharge device A of Embodiment 1 embodying the present disclosure is arranged so that the back surface R of the water discharge 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 discharge device A at a right angle to the wall surface W and shows the structures of the guide path 80 and the drain port 83 described later. Regarding the direction of the water discharge device A, it is defined in a state where the water discharge device A is attached to the wall surface W. The front-rear direction is the direction orthogonal to the wall surface W, and the front side of the water discharge 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 surface R side of the water discharge device A is defined as the back. 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 discharge 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 discharge device A> As shown in FIG. 1, the water spraying device A includes a device main body 10, a single 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 with a height dimension in the vertical direction larger than the width dimension in the horizontal 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 disposed 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 a water spraying mode from the faucet and a water spraying mode from the water spraying device A.

[0011] As shown in FIG. 2, a shower connection portion 14 is provided on the bottom surface 12 of the housing 11. The shower connection portion 14 is disposed 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 the hand shower 15 is connected to the shower connection portion 14. A shower head 17 is connected to the downstream end of the shower hose 16. A head holding portion 18 for holding the shower head 17 is attached to the wall surface W.

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

[0013] The base end portion 23 of the arm 21 is supported at the lower end portion on the outer surface of the housing 11. The arm 21 is rotatable 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 portion 23. The arm 21 in the storage position takes an upright posture with the tip end portion 24 of the arm 21 directed straight 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 portion 23.

[0014] The balancer 26 is composed of a torsion spring arranged so as to surround the virtual axis 25 and imparts an elastic force in the rotational direction to the arm 21. The downward moment caused by the own weight of the arm 21 is reduced by the elastic rotational force of the balancer 26. 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. The arm 21 can be held at an arbitrary position between the storage position and the use position by the braking force of the braking mechanism.

[0015] <Shower switching valve 30> The shower switching valve 30 is arranged at the lower end portion in the housing 11 in the vertical direction and at the central portion of the housing 11 in the left-right 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 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 formed by assembling a plurality of components. A valve passage 33 extending in the vertical direction is formed inside 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 the valve passage 33 is formed in the valve box 32. The downstream end of the shower water supply pipe 35 extending from the faucet connection part 13 is connected to the inlet 34. In the valve passage 33, an upper valve seat 36 located above the inlet 34 and a lower valve seat 37 located below the inlet 34 are provided.

[0018] The 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. The valve rod 39 moves up and down integrally with the valve body 38. The lower end portion 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 portion 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 portion on the valve body 38 side.

[0019] As shown in FIGS. 3 and 5, a hand shower outlet 43 communicating with the 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 the hand shower pipe 44 is connected to the hand shower outlet 43. The downstream end of the hand shower pipe 44 is connected to the shower connection part 14.

[0020] In the valve box 32, 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. The upstream end of a bent body shower pipe 46 is connected to the body shower outlet 45. As shown in FIG. 2, the 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. The 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 in 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 in 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 valve body 38 moving up and down, 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 rotation shaft 53, a handle body 54, a support shaft 62, a weight 63, and a connecting bar 64. The rotation 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 rotation 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 used as a reference.

[0024] The handle body 54 is a single molded resin part having a base portion 55, one operation 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-rear dimension decreases downward. The operation portion 56 has a base portion 57 that protrudes obliquely downward and forward from the base portion 55, and a finger hook portion 58 that extends horizontally forward from the base portion 57. The operation portion 56 protrudes forward from the base portion 55 as a whole. Regardless of whether the handle 52 is in the initial position or the operation position, the operation 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 that penetrate the protrusions 59 in the left-right direction are formed at the front end portions of the left and right protrusions 59. The rotation shaft 53 penetrates through the left and right bearing holes 60. Support holes 61 that penetrate the protrusions 59 in the left-right direction are formed at the rear end portions of the left and right protrusions 59 at approximately the same height as the bearing holes 60. The support shaft 62 penetrates through 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-rear direction, the weight 63 is disposed behind the rotation shaft 53. The rotation shaft 53, the support shaft 62, and the weight 63 are located above the operation portion 56.

[0026] Between the left and right protruding portions 59, a connecting bar 64 elongated in the front-rear direction is disposed. At both the front and rear ends of the connecting bar 64, a pair of through holes 65 penetrating the connecting bar 64 in the left-right direction are formed. A rotating shaft 53 penetrates through the front through hole 65. A support shaft 62 penetrates through the rear 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 rotating shaft 53 and assumes a form protruding obliquely upward and rearward from the rotating shaft 53. The weight 63 is displaced to a position closer to the rotating shaft 53 than the initial position in the front-rear direction.

[0028] The lower end of the handle 52 and the valve rod 39 are connected via a connecting member 40 and the connecting bar 64. In the connected state, the connecting bar 64 penetrates through 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 displaceable relative to each other in the vertical direction and are also displaceable relative to each other 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 abut is behind the rotating shaft 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 the handle 52 is displaced relative to the valve body 38, the valve rod 39, and the connecting member 40 while maintaining the state in which the interlocking member 66 is connected. When the interlocking member 66 moves integrally, the handle 52 rotates about the rotating shaft 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 located 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 (that is, the rotational torque) caused by the self-weight of the interlocking member 66, a rotational force in the direction of displacing the operating 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 passage 68 for supplying water to the body shower 20 after the use of the body shower 20. The water supply passage 68 is constituted by the body shower outlet 45 of the shower switching valve 30, the body shower pipe 46, the branch pipe 50, and the water passage in the arm 21. The branch portion 49 and the branch pipe 50 are arranged at the lowest position in the water supply passage 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 configured by assembling a housing 71 with its axis in the vertical direction, a valve body 76, and a compression coil spring 77. FIG. 7 is a cross-sectional view of the residual water discharge valve 70 cut 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, that is, in the opening direction, by a compression coil spring 77 arranged 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 supply to the water supply passage 68 is performed, the water supply pressure in the water supply passage 68 acts on the valve body 76.

[0036] Below the valve sheet 75, a drain hole 78 is formed to communicate the internal space of the cylindrical portion 72 and the lower space of 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 a region below the residual water discharge valve 70 in the guiding path 80, a fitting opening / closing port 81 penetrating the bottom plate portion 19 vertically is formed. The fitting opening / closing port 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, on the bottom plate portion 19, a pair of left and right drain ports 83 opening to the bottom surface 12 of the housing 11 are formed. The guiding path 80 has an inclined surface 84 inclined so as to gradually become lower from directly below the drain hole 78 to the drain ports 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 an 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 ports 83 are set so that water does not block the drain ports 83 due to surface tension. On both left and right edge portions and the front edge portion of the opening of the drain ports 83, ribs 85 protruding downward in a wall shape from the bottom surface 12 of the housing 11 are formed.

[0038] <Usage form of the water spraying device A> In a 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 at the initial position by the moment (rotational force) acting on the handle 52 due to the self-weight of the interlocking member 66. The moment is a force that generates a rotational torque in a direction to raise the operation portion 56 around the rotation shaft 53. Even when the handle 52 is rotated from the initial position to the operation position, the handle 52 returns to the initial position. The shower switching valve 30 is held in a 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 sheet 75 by the biasing of the compression coil spring 77, and the residual water discharge valve 70 is held in an open valve state.

[0039] When using the body shower 20 from the water shut-off state, start the water supply from the faucet body to the shower switching valve 30 with the handle 52 in the initial position. 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 water temperature and flow rate while preventing the water discharged from the shower head 17 from hitting the body.

[0040] After adjusting the water temperature and flow rate, 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 shut-off state, as will be described later, the residual water in the water supply path 68 to the body shower 20 has been discharged by the residual water discharge valve 70, so when starting the water supply to the body shower 20, no residual water is discharged from the water discharge part 22.

[0041] When 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 residual 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 residual water discharge valve 70 is kept in the closed state. The water in the water supply path 68 is supplied to the body shower 20 without leaking from the residual 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 residual water discharge valve 70 decrease. In the residual 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 residual water discharge valve 70 opens. The water in the water supply path 68 is discharged from the opened residual water discharge valve 70 to the guide path 80. In the shower switching valve 30, the valve body 38 descends due to the self-weight of the interlocking member 66, and the water supply mode switches from the water supply mode to the body shower 20 to the water supply mode to the hand shower 15. Along with the descent of the valve body 38, the handle 52 returns from the operation position to the initial position.

[0043] When using the hand shower 15 from the state of using the body shower 20, push up the operation part 56 and rotate the handle 52 from the operation position to the initial position. Along with the rotation of the handle 52, the shower switching valve 30 switches to the water supply mode to 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 left and right drain ports 83 due to the inclination of the guide path 80. The residual water falls from the drain ports 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 spraying device A includes a body shower 20 having a water spraying part 22, a water supply path 68 for supplying water to the water spraying 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 spraying part 22 in the water supply path 68. The residual water discharge valve 70 opens when the water supply pressure in the water supply path 68 decreases.

[0046] When the water spraying from the water spraying 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 spraying part 22, the water between the water spraying part 22 and the residual water discharge valve 70 can be discharged.

[0047] The water spraying 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 path 68 is a flow path from the shower switching valve 30 to the water spraying part 22. The residual water discharge valve 70 is disposed at the lowest position in the water supply path 68. All the residual water in the water supply path 68 between the shower switching valve 30 and the water spraying part 22 can be discharged.

[0048] A pair of body showers 20 are supported on the left and right outer edge parts 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 is good. Only one residual water discharge valve 70 is needed.

[0049] The water supply path 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 a residual water discharge valve 70, and a drain port 83 that opens in the vicinity of the outer edge of the housing 11 on 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 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 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 part 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 in a state where the back surface R of the housing 11 is overlapped with the wall surface W of the bathroom. 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, the falling state of the residual water is less likely to be a concern.

[0053] A guiding 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 surely 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 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 in the width direction of the housing 11 on the bottom surface 12 of the housing 11 is opened. The drain port 83 is in a form in which only a part in the depth direction of the housing 11 is opened. Since the falling position of the residual water is limited to a narrow range, the falling state of the residual water is less likely to be a concern.

[0055] The water spraying device A of the first embodiment includes a hand shower 15 having a flexible shower hose 16, an arm 21-shaped body shower 20 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 operation 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 operation 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 operation 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 spouting device A includes a device main body 10 that houses a shower switching valve 30 therein, and a horizontal rotation shaft 53 that rotatably supports a handle 52. The handle 52 has an operation portion 56 that is located below the device main body 10. When the handle 52 is in the initial position, the operation portion 56 horizontally protrudes 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, a connecting member 40, which is a connecting portion between the valve rod 39 and the handle 52, and a connecting bar 64 are located on the side opposite to the operation portion 56, i.e., behind the rotation shaft 53, with the rotation shaft 53 being sandwiched therebetween in the horizontal direction. When the handle 52 Operating position is in a certain state, the operation portion 56 protrudes obliquely downward. The manual operation of the handle 52 required when using the body shower 20 from the water shut-off state is only the operation of rotating the handle 52 from the initial position to the operation position. This operation is an operation of pushing down the operation portion 56 that protrudes horizontally forward, so it has excellent operability compared to the case of pushing up the operation portion 56.

[0060] <Embodiment 2> Next, Embodiment 2 embodying the present disclosure will be described with reference to FIGS. 13 to 14. In Embodiment 2, the handle 90 has a configuration different from that of Embodiment 1. Since the other configurations are the same as those in Embodiment 1, the same components are denoted by the same reference numerals, and the description of the structure, operation, and effects is omitted. Regarding the directions in the following description of the handle 90, the state where the handle 90 is in the initial position is used as a reference.

[0061] The outer shape of the handle main body 91 constituting the handle 90 in Embodiment 2 is the same as that of the handle 52 in Embodiment 1, and the rotation shaft 53, the support shaft 62, and the connecting bar 64 constituting the handle 90 in Embodiment 2 are the same components as those of the handle 52 in Embodiment 1.

[0062] Since the weight 92 of Embodiment 2 is larger in specific gravity and volume than the weight 63 of Embodiment 1, the position of the center of gravity H2 of the handle 90 in Embodiment 2 is different from the position of the center of gravity of the handle 52 in Embodiment 1. Even when the handle 90 rotates between the initial position and the operation position, the positions of the centers of gravity of the valve body 38, the valve rod 39, and the connecting member 40 do not displace in the front - rear direction from the position on the axis 67 of the valve rod 39.

[0063] During the process of the handle 90 rotating between the initial position and the operation position, the center of gravity H2 of the handle 90 is always located above the rotation axis 53 and always located behind the rotation axis 53. The center of gravity H2 of the handle 90 when the handle 90 is in the initial position is located behind the center of gravity H2 of the handle 90 when the handle 90 is in the operation position. The center of gravity G2 of the interlocking member 66 when the handle 90 is in the initial position is located behind the center of gravity G2 of the interlocking member 99 when the handle 90 is in the operation position. The downward moment due to the self - weight of the interlocking member 66 when the handle 90 is in the initial position is larger than the downward moment due to the self - weight of the interlocking member 66 when the handle 90 is in the operation position. The center of gravity G2 (see FIG. 13) of the interlocking member 66 when the handle 90 of Embodiment 2 is in the initial position is located behind the center of gravity G1 (see FIG. 11) of the interlocking member 66 when the handle 52 of Embodiment 1 is in the initial position. In Embodiment 2, the handle 90 can be reliably held in the initial position.

[0064] The center of gravity G2 (see FIG. 14) of the interlocking member 66 when the handle 90 of Embodiment 2 is in the operation position is located in front of the center of gravity G1 (see FIG. 12) of the interlocking member 66 when the handle 52 of Embodiment 1 is in the operation position. The downward moment due to the self - weight of the interlocking member 66 when the handle 90 of Embodiment 2 is in the operation position is smaller than the downward moment due to the self - weight of the interlocking member 66 when the handle 52 of Embodiment 1 is in the operation position. Therefore, in Embodiment 2, even when the water supply pressure to the body shower 20 is low, the handle 90 is held in the operation position.

[0065] Regardless of whether the steering wheel 90 is in the initial position or the operating position, the center of gravity H2 of the steering wheel 90 is located above the rotation axis 53. In the process of the steering wheel 90 returning from the operating position to the initial position, since the center of gravity H2 of the steering wheel 90 is displaced in a direction away from the rotation axis 53 rearward in the horizontal direction, the rotational torque due to the self-weight of the steering wheel 90 increases. As a result, the steering wheel 90 reliably returns to the initial position.

[0066] <Embodiment 3> Next, Embodiment 3 embodying the present disclosure will be described with reference to FIGS. 15 to 16. Embodiment 3 has a configuration of the steering wheel 95 different from that of Embodiment 1. Since the other configurations are the same as those of Embodiment 1 and Embodiment 2, the same reference numerals are given to the same configurations, and the description of the structure, operation, and effects is omitted. Regarding the directions in the following description of the steering wheel, the state where the steering wheel 95 is in the initial position is taken as a reference.

[0067] The steering wheel 95 of Embodiment 3 is different from the steering wheel 52 of Embodiment 1 in terms of the side view shape of the protrusion 97 of the steering wheel body 96 and the weight 98 disposed on the protrusion 97. The rotation axis 53, the support axis 62, and the connecting bar 64 constituting the steering wheel 95 of Embodiment 3 are the same components as the steering wheel 52 of Embodiment 1.

[0068] The side view shape of the protrusion 97 of Embodiment 3 is an isosceles triangle having a larger height dimension than the protrusion 59 of Embodiment 1 and Embodiment 2. The weight 98 of Embodiment 3 is disposed at the center in the front-rear direction of the protrusion 97 and at the upper end of the protrusion 97. The specific gravity and volume of the weight 98 of Embodiment 3 are larger than those of the weight 63 of Embodiment 1. The position of the weight 98 when the steering wheel 95 of Embodiment 3 is in the initial position is arranged at a position higher than the weight 92 when the steering wheel 90 of Embodiment 2 is in the initial position, that is, at a position farther from the rotation axis 53. The center of gravity H3 (see FIG. 16) of the steering wheel 95 of Embodiment 3 in the operating position is located forward of the center of gravity H2 (see FIG. 14) of the steering wheel 90 of Embodiment 2 in the operating position.

[0069] In the process of the handle 95 rotating between the initial position and the operating position, the center of gravity H3 of the handle 95 is always located above the rotation axis 53 and always located behind the rotation axis 53. The center of gravity H3 of the handle when the handle 95 is in the initial position is located behind the center of gravity H3 of the handle 95 when the handle 95 is in the operating position. The center of gravity G3 of the interlocking member 66 when the handle 95 is in the initial position is located behind the center of gravity G3 of the interlocking member 66 when the handle 95 is in the operating position in the front-rear direction. The downward moment due to the self-weight of the interlocking member 66 when the handle 95 is in the initial position is greater than the downward moment due to the self-weight of the interlocking member 66 when the handle 95 is in the operating position. The handle 95 can be reliably held in the initial position.

[0070] In the state where the handle 90 of Embodiment 2 and the handle 95 of Embodiment 3 are in the operating position, the front-rear separation distance (see FIG. 16) between the center of gravity G3 of the interlocking member 66 of Embodiment 3 and the rotation axis 53 is shorter than the separation distance (see FIG. 14) between the center of gravity G2 of the interlocking member 66 of Embodiment 2 and the rotation axis 53. The downward moment due to the self-weight of the interlocking member 66 when the handle 95 of Embodiment 3 is in the operating position is smaller than the downward moment due to the self-weight of the interlocking member 66 when the handle 90 of Embodiment 2 is in the operating position. Therefore, in Embodiment 3, even when the water supply pressure to the body shower 20 is low, the handle 95 is reliably held in the operating position.

[0071] Regardless of whether the handle 95 is in the initial position or the operating position, the center of gravity H3 of the handle 95 is located above the rotation axis 53. In the process of the handle 95 returning from the operating position to the initial position, since the center of gravity H3 of the handle 95 is displaced in a direction away from the rotation axis 53 rearward in the horizontal direction, the rotational torque due to the self-weight of the handle 95 increases. As a result, the handle 95 reliably returns to the initial position.

[0072] <Other Embodiments> The present disclosure is not limited to the embodiments described above and in the drawings. For example, the following embodiments are also included in the technical scope of the present disclosure. (1) The displacement between the initial position and the operating position of the handle is not limited to rotational motion, and may be an up-and-down motion integrated with the valve body and the valve rod.

[0073] (2) As a means for returning the handle from the operating position to the initial position, in addition to the dead weight of the interlocking member, a spring force may be used in combination.

[0074] (3) The posture of the operating portion when the handle is in the initial position may be a posture protruding downward or a posture protruding obliquely upward.

[0075] (4) The posture of the operating portion when the handle is in the operating position may be a posture protruding horizontally or a posture protruding obliquely upward.

[0076] (5) In a state where the handle is in the initial position, the connecting portion between the valve rod and the handle may be located between the rotation axis and the operating portion in the horizontal direction.

[0077] (6) The first water discharge member is not limited to a hand shower, and may be a body shower that rotates in the vertical direction, an overhead shower that rotates in the left-right direction, or a faucet that discharges water directly downward.

[0078] (7) The second water discharge member is not limited to a body shower that rotates in the vertical direction, and may be a hand shower having a flexible shower hose, an overhead shower that rotates in the left-right direction, or a faucet that discharges water directly downward.

Explanation of Reference Numerals

[0079] A... water discharging device, G1, G2, G3... centers of gravity of the linkage members, H2, H3... centers of gravity of the handles, 10... device main body, 15... hand shower (first water discharging member), 16... shower hose, 20... body shower (second water discharging member), 30... shower switching valve (water supply mode switching valve), 38... valve body, 40... connecting member (connecting portion on the valve body side), 52... handle, 53... rotating shaft, 56... operation portion, 64... connecting bar (connecting portion on the handle side), 66... linkage member, 90... handle, 95... handle

Claims

1. a first water discharge member that discharges water; a second water discharge member that discharges water; a water supply mode switching valve having a valve body that can move up and down, and switching between a water supply mode to the first water discharge member and a water supply mode to the second water discharge member; a handle connected to the valve body and displaceable between an initial position for switching the water supply mode switching valve to the water supply mode to the first water discharge member and an operation position for switching the water supply mode switching valve to the water supply mode to the second water discharge member; When water is supplied to the water supply mode switching valve and the handle is in the operation position, the water supply mode switching valve is held in the water supply mode to the second water discharge member by the water supply pressure acting on the valve body; A water discharge device in which when the water supply to the water supply mode switching valve stops, the handle returns to the initial position due to the self-weight of the interlocking member including the valve body and the handle.

2. The first water discharge member is a hand shower having a flexible shower hose, The water discharge device according to claim 1, wherein the second water discharge member is an arm-shaped body shower rotatably supported.

3. The water discharge device according to any one of claims 1 and 2, wherein when the handle is in the operation position and water is being supplied to the water supply mode switching valve, the downward pushing force acting on the valve body due to the self-weight of the interlocking member is smaller than the upward pushing force acting on the valve body due to the water supply pressure.

4. a device body that houses the water supply mode switching valve therein; a horizontal rotation shaft that rotatably supports the handle; The handle has an operation portion located below the device body, The water discharge device according to any one of claims 1 to 3, wherein when the handle is in the initial position, the operation portion protrudes in the horizontal direction.

5. The handle is connected to the valve body via a valve rod, When the handle is in the initial position, the connecting portion between the valve rod and the handle is located on the opposite side of the operation portion across the rotation shaft in the horizontal direction, The water discharge device according to claim 4, wherein when the handle is in the operation position, the operation portion protrudes downward.

6. When the handle is in the initial position, the center of gravity of the interlocking member is arranged on the side opposite to the rotation axis across the position of the center of gravity of the interlocking member when the handle is in the operation position in the horizontal direction. The water discharge device according to any one of claims 4 and 5.

7. The water discharge device according to claim 6, wherein the center of gravity of the handle is located above the rotation axis regardless of whether the handle is in the initial position or the operation position.

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