JP2019044460A - Faucet - Google Patents

Abstract

To provide a faucet capable of preventing hot water from being discharged even if a water temperature control unit is operated while a safety button is pressed.SOLUTION: The faucet of the present invention comprises: a faucet body 28; a water temperature control unit that rotates in a circumferential direction and adjusts a temperature of hot and cold water; a safety button that moves from a radially outer side to an inner side when pushed from the radially outer side; and an engaging part provided at a radially inner tip of the safety button. The engaging part provided between a low temperature stop position PX0 and a high temperature stop position PX4 in a C direction abuts the faucet body 28 in a state where the safety button is not pressed, and the engaging part provided between the low temperature stop position PX0 and the high temperature stop position PX4 in the C direction abuts a first stop surface 322 that restricts movement of the engaging part in an H direction in the state where the safety button is pressed to a second position, and a second stop surface 340 for restricting the movement of the engaging part in the H direction is provided.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a water faucet capable of adjusting the temperature of hot and cold water to be discharged.

  Some of the faucets are equipped with a temperature control mechanism for adjusting the temperature of hot and cold water discharged from the spout. For example, Patent Document 1 discloses a temperature control structure of a thermostat faucet capable of changing the temperature of hot and cold water to be discharged.

  The temperature control handle (water temperature adjustment unit) of the water faucet described in Patent Document 1 is provided with a safety button for preventing excessive rotation of the temperature control handle to the high temperature side. On the other hand, a stop ring is attached to the main body side of the faucet described in Patent Document 1. The stop ring is provided with two contact surfaces against which the safety button abuts. The two contact surfaces (i.e., the low temperature contact surface and the high temperature contact surface) are provided at different positions in the circumferential direction of the stop ring.

JP-A-8-302772

  However, in the temperature control structure described in Patent Document 1, it is considered that when the temperature control handle is rotated while pressing the safety button, the contact piece portion of the safety button is located radially inward of the second contact surface. Be In that case, there is a possibility that the contact piece enters inward in the radial direction, and the temperature control handle is rapidly rotated to the high temperature side. As a result, there is a problem that hot water having a temperature higher than the temperature desired by the user is discharged.

  Therefore, the present invention provides a water faucet capable of preventing hot water from being discharged even if the water temperature adjusting unit is operated while pressing the safety button.

The faucet according to the present invention includes a faucet body, a water temperature adjustment unit connected to the faucet body, and rotates in the circumferential direction about an axis and adjusts the temperature of hot and cold water discharged from the faucet body; A safety button which protrudes outward in the radial direction of the water temperature adjusting portion from the outer peripheral surface of the water temperature adjusting portion, and which is moved inwardly from the outer side in the radial direction when pressed from the outer side in the radial direction A locking portion provided at a tip end inside the direction, and the water temperature adjustment when the water temperature adjusting portion is rotated in the circumferential direction in which the water temperature becomes low in the circumferential direction with the faucet body Provided between a low temperature stopping position at which the rotation of the unit stops and a high temperature stopping position at which the rotation of the water temperature adjusting unit stops when the water temperature adjusting unit is rotated in the circumferential direction where the hot water becomes high temperature; Adjust the water temperature when the safety button is not pressed When the hot water is rotated in the circumferential direction where the hot water becomes hot, the locking portion abuts, and a first contact surface that restricts movement of the locking portion in the circumferential direction where the hot water becomes hot; It is provided between the low temperature stop position and the high temperature stop position in the circumferential direction, and rotates the water temperature adjusting portion in the circumferential direction in which the hot water becomes hot when the safety button is pressed to the innermost side in the radial direction. A second contact surface is provided, which restricts the movement of the locking portion in the circumferential direction in which the locking portion abuts and the hot water becomes hot when it is allowed to move.
Note that “the state in which the safety button is pressed to the innermost side in the radial direction” indicates a state in which the safety button is physically pressed to the innermost side in the radial direction, specifically, the inner side in the radial direction The safety button is held by the user's finger or the like even if there is a state where the radial inner end surface of the locking portion is locked to the locking surface formed along the circumferential direction, or even if there is no locking surface described above. The state in which the locking portion is at the innermost radial inside of the movable range, etc. is comprehensively included by being pushed to the full radial inner side.

  According to the faucet of the present invention, the user operates the water temperature adjusting portion while pressing the safety button from the state where the movement in the circumferential direction where the locking portion is the first contact surface and the hot water becomes hot due to contact If the water temperature adjusting portion is rotated to the high temperature side in the circumferential direction with the safety button at the innermost side in the radial direction, the locking portion contacts the second contact surface at a predetermined position in the circumferential direction, The rotation of the water temperature control unit to the high temperature side is restricted. Therefore, even if the user operates the water temperature adjusting unit while pressing the safety button, the hot water can be prevented from being discharged from the faucet without the water temperature adjusting unit rapidly rotating to the high temperature side. it can.

  In the faucet according to the present invention, when the safety button is pressed from the outer side in the radial direction, the locking portion is a first position in the radial direction from the first position in the radial direction to the innermost first in the radial direction. When the water temperature adjusting portion is rotated while moving to two positions and the safety button is not pressed to the faucet body, the locking portion abuts, and the hot water becomes hot in the circumferential direction in which the hot water becomes hot And the water temperature adjusting unit is rotated in a state where the safety button is pressed, and the pressure on the safety button is released after passing over the second contact surface, and the first And a third contact surface for restricting movement in the circumferential direction, in which the hot water is at a high temperature, in which the locking portion returned to the position abuts, and the second contact surface is in the second position. The locking portion abuts, restricting the movement in the circumferential direction where the hot water becomes hot It may be.

  According to the water faucet of the present invention, when the user pushes the safety button once and exceeds the first contact surface, the safety button is released to operate the water temperature adjusting portion and rotate the water temperature adjusting portion to the high temperature side in the circumferential direction. The rotation of the water temperature adjusting portion stops at a predetermined position in the circumferential direction because the locking portion contacts the third contact surface. In addition, when the user operates the water temperature adjusting portion with the safety button pressed inward in the radial direction and rotates the water temperature adjusting portion to the high temperature side in the circumferential direction, the locking portion hits the second contact surface. The rotation of the water temperature adjusting unit stops at a predetermined position in the circumferential direction. Therefore, regardless of whether the user presses and releases the safety button or does not press and hold the safety button, the hot water is spouted from the faucet without the water temperature adjusting portion suddenly rotating to the high temperature side. Can be prevented.

  In the faucet according to the present invention, the faucet body is formed between the second contact surface and the third contact surface in the radial direction, extends along the circumferential direction, and can guide the locking portion. A groove may be formed.

  According to the faucet of the present invention, when the user wants to use hot water, the safety button is in a predetermined position with the locking portion in contact with the second contact surface or the third contact surface. By holding it, it is possible to guide the locking portion to the groove and to discharge hot water. In addition, the bottom surface of the groove becomes a high temperature contact surface, and the movement of the locking portion in the circumferential direction in which the hot water becomes high temperature on the bottom surface is restricted.

  In the faucet according to the present invention, the second contact surface may be formed on the near side in the circumferential direction where the hot water becomes hotter than the third contact surface.

  According to the faucet of the present invention, when the second contact surface is on the near side of the third contact surface in the circumferential direction, the user can receive the safety button from the state where the locking portion is locked to the third contact surface. When the groove is pushed inward in the radial direction, the locking portion abuts against the radially inner side surface (that is, the surface along the circumferential direction) of the groove and is smoothly led into the groove. This makes it possible to reliably discharge hot water when the user wants to use hot water.

  In the faucet of the present invention, it is preferable that the radially inner end of the first contact surface is located radially inward of the radial inner end of the third contact surface.

  According to the faucet of the present invention, when the user rotates the water temperature control portion in the circumferential direction in which the hot water becomes hot without pressing the safety button, the locking portion is temporarily stopped at the first contact surface. The movement of the locking portion in the circumferential direction where the hot water becomes hot can be restricted.

  In the faucet according to the present invention, an inclined surface may be formed which is inclined from the inside to the outside in the radial direction as it proceeds from the tip of the first contact surface in the circumferential direction in which the hot water becomes hot.

  According to the faucet of the present invention, when the user tries to turn the water temperature adjusting portion along the circumferential direction, the locking portion is in the first contact surface (that is, in the standard position, the spouted hot water Abuts to a position where the temperature is close to the standard temperature. Thereafter, when the user pushes the safety button radially outward from the outer side, the locking portion moves in accordance with the inclination of the second contact surface (along the surface direction of the second contact surface) and reaches the tip. , Guided along the inclined surface and guided smoothly toward the third contact surface.

  According to the present invention, there is provided a water faucet capable of preventing hot water from being discharged even if the water temperature adjusting unit is operated while the safety button is pressed.

It is a schematic plan view of the bathroom provided with the water faucet which concerns on one Embodiment of this invention. It is a perspective view of a faucet concerning one embodiment of the present invention. It is a side view of a water temperature adjustment part of a faucet concerning one embodiment of the present invention. It is a side view of the faucet main part of the faucet concerning one embodiment of the present invention. It is a figure of the compound water discharge part of the faucet which concerns on one Embodiment of this invention, and its vicinity, and is sectional drawing seen by the arrow by the AA shown in FIG. It is a disassembled perspective view of the switching valve of the faucet which concerns on one Embodiment of this invention. It is the perspective view which looked at the water stop valve of the switching valve of the faucet which concerns on one Embodiment of this invention from diagonally upward from the downward direction. It is the perspective view which looked at the water stop valve of the switching valve of the faucet which concerns on one Embodiment of this invention from diagonally downward side toward upper side. It is a disassembled perspective view of a part of compound discharge part which concerns on one Embodiment of this invention, and a water discharge pipe. It is another disassembled perspective view of a part of composite water discharge part which concerns on one Embodiment of this invention, and a water discharge pipe. It is a figure of one part of the composite water discharge part of the faucet which concerns on one Embodiment of this invention, Comprising: (a) is a top view, (b) is sectional drawing seen by the B-B line of (a). It is. It is an upper side figure of a part of composite water discharging part of the faucet which concerns on one Embodiment of this invention, and is a figure which shows the state shown in FIG. It is another figure of one part of the composite water discharging part of the faucet which concerns on one Embodiment of this invention, Comprising: (a) is a top view, (b) was arrowed by the CC line of (a). FIG. FIG. 14 is a top view of a portion of the composite water discharger of the water faucet according to an embodiment of the present invention, showing the state shown in FIG. 13; It is still another figure of a part of compound water discharge part of the faucet which concerns on one Embodiment of this invention, Comprising: (a) is a top view, (b) is an arrow by the DD line of (a). FIG. FIG. 16 is a top view of a portion of a composite water discharger of a water faucet according to an embodiment of the present invention, showing the state shown in FIG. 15;

  Hereinafter, an embodiment of a water discharger of the present invention will be described with reference to the drawings. The drawings used in the following description are schematic, and the ratios of length, width, and thickness, etc. are not necessarily the same as actual ones, and can be changed as appropriate.

  As shown in FIG. 1, the bathroom 1 according to the present embodiment includes a bath 11, a washing place 14 adjacent to the bath 11, a faucet 13 attached to the washing place 14, and a faucet 20 attached to the bath 11. ing. The washing place 14 is provided with a counter 12, and the faucet 13 is provided at the counter 12. The faucet 13 can discharge a shower or straightening water. The faucet 20 is provided on a wall surface (not shown) on the outer periphery of the bath 11, and can discharge either one or both of the flow straightening and the mist.

  The faucet 20 includes two wall surface connection parts 22 and 22, a water discharge operation part 23, a water discharge pipe 21, and a combined water discharge part 25. In addition, water is supplied to one side of the wall surface connection portion 22 from a water supply pipe (not shown), and hot water is supplied to the other side from a hot water supply pipe (not shown). Hereinafter, the direction in which water and hot water flow down in the flow path of the wall surface connection portion 22, the water discharge operation portion 23, the water discharge pipe 21, and the composite water discharge portion 25 in this order will be referred to as "flow direction-D direction". In the flow-down direction, the side closer to the wall surface is referred to as the “upstream side”, and the side closer to the spout of the combined water discharger 25 is referred to as the “downstream side”.

  The two wall surface connection portions 22 extend along the horizontal direction (for example, the H direction shown in FIG. 1 and a direction parallel to the paper surface) from the wall surface toward the bath 11, approach each other, and again along the horizontal direction. It extends and is connected to the water discharge operation unit 23 respectively.

  As shown in FIG. 2, the water discharge operation unit 23 includes a faucet main body 28, a water amount adjustment unit 26, and a water temperature adjustment unit 27. The faucet body 28 is orthogonal to the extending direction (direction D in FIG. 2) of the downstream end of the two wall surface connection portions 22 and extends in the X direction. The X direction is a direction along a horizontal surface and a direction parallel to the depth direction of the bath 11 shown in FIG. The downstream end portions of the two wall surface connection portions 22 are connected to the surface facing the upstream side of the faucet body 28 at intervals in the X direction.

  A bottomed cylindrical water amount adjustment unit 26 is provided at one end of the faucet body 28 in the X direction. The water amount adjustment unit 26 is provided coaxially with the faucet body 28. A control lever 29 is integrally provided on the outer peripheral surface of the water amount adjustment unit 26. When the water amount adjustment unit 26 rotates around the axis J26, the start and stop of water discharge from the two wall surface connection parts 22 to the water discharge pipe 21 and the water discharge from the two wall surface connection parts 22 to the water discharge pipe 21 The amount is adjusted.

A water temperature adjusting portion 27 is provided at the other end of the faucet body 28 in the X direction. The water temperature adjusting unit 27 is provided coaxially with the faucet body 28. The rotation of the water temperature adjusting unit 27 about the axis J27 adjusts the amount (balance) of hot and cold water discharged from the two wall surface connection parts 22 to the water discharge pipe 21, and as a result, the temperature of the hot and cold water is adjusted.

  As shown in FIGS. 3 and 4, the water temperature adjustment unit 27 is connected to the faucet body 28 by inserting the shaft portion 404 into the shaft insertion portion 304 formed in the faucet body 28. The water temperature adjusting unit 27 pivots in the C direction (circumferential direction) about an axis J 27 which is a radial center of the shaft portion 404. The water temperature adjusting unit 27 is provided with a safety button 410 extending in the radial direction (R direction) of the water temperature adjusting unit 27. The safety button 410 protrudes outward in the R direction (radial direction of the water temperature adjusting portion) from the outer peripheral surface 400r of the cylinder main body 400 of the water temperature adjusting portion 27, and when pressed inward from the outer side in the R direction Move from inside to inside. In the present embodiment, when the safety button 410 is pressed inward from the outside in the R direction, the safety button 410 continuously extends from the outermost first position P1 to the innermost second position P2 within the movement range in the R direction. Moving.

  The safety button 410 includes a main body portion penetrating the through hole 408 formed in the cylinder main body 400 of the water temperature adjusting portion 27 and a locking portion 412 formed at the tip of the main body portion. The locking portion 412 protrudes from the inside tip portion 410a in the R direction along the axis J27 to the inside of the cylinder main body 400 (that is, the front side of the paper surface of FIG. 4).

  As shown in FIG. 3, the faucet main body 28 includes a cylinder main body 300. The stop ring 310 is fitted in the cylinder main body 300. The stop ring 310 is provided with a protrusion 320 projecting outward from the faucet body 28 along the X direction from a base surface 310 s substantially flush with the side surface 300 s of the cylinder main body 300.

  When the safety button 410 comes to the predetermined position PX0 (low temperature stop position) in the C direction (circumferential direction), PX1, PX2, PX3, PX4 (high temperature stop position) on the protrusion 320, the side surface 416 of the locking portion 412 Alternatively, a contact surface 360 is provided where the side surface 414 abuts and movement of the locking portion 412 and the water temperature adjusting portion 27 in the C direction is restricted.

  In the present embodiment, the first locking in which the tip end surface 415 (that is, the innermost surface in the R direction) of the locking portion 412 at the second position P2 in the C direction abuts on the inner side of the stop ring 310 in the R direction. A face 318 is provided. Further, as the plurality of contact surfaces 360, the protrusion 320 is provided with the low temperature contact surface 400, the first contact surface 322, and the second contact surface 340 from the near side (low temperature side) to the back side (high temperature side) in the H direction. , The third contact surface 334 and the high temperature contact surface 352. For example, the first contact surface 322 is set to a hot water temperature of 42 degrees, the second contact surface 340 is a hot water temperature of 45 degrees, the third contact surface 334 is a hot water temperature of 45 degrees, and the high temperature contact surface 352 is a hot water temperature of 45 degrees or higher. It is done.

  The low temperature contact surface 400 stops the rotation of the water temperature adjusting unit 27 when the water temperature adjusting unit 27 is rotated in the circumferential direction (that is, the direction opposite to the H direction in the C direction shown in FIG. 3). Is provided at the low temperature stop position PX0. In the cold stop position PX0, the side surface 416 of the locking portion 412 hits the cold contact surface 400.

  The first abutment surface 322 is provided at a predetermined position PX1 on the near side in the H direction in the C direction. When the safety button 410 at the first position P1 in the R direction comes to the position PX1 in the C direction, at least a portion of the side surface 414 abuts against the first contact surface 322. The first contact surface 322 is inclined rearward in the H direction as it travels from the outside to the inside along the R direction. The tip 323 of the first abutment surface 322 is inside the R direction from the tip 335 of the third abutment surface 334. On the back side in the H direction of the tip 335, there is provided an inclined surface 332 which is inclined from the inside to the outside in the R direction from the tip 335 toward the back side in the H direction.

  When the safety button 410 at the second position P2 in the R direction comes close to the position PX2 in the C direction, the second contact surface 340 is in contact with the side surface 414. When the safety button 410 at the first position P1 in the C direction comes to the predetermined position PX3 in the C direction, the side surface 414 of the locking portion 412 abuts the third abutment surface 334. The second contact surface 340 in the C direction is offset to the near side in the H direction of the third contact surface 334.

  A groove 350 is formed between the second contact surface 340 and the third contact surface 334 in the C direction. The groove portion 350 extends in the C direction along the H direction to the high temperature upper limit position PX4, and the locking portion 412 is formed so as to be guided.

  The bottom of the groove 350 is a high temperature contact surface 352. The high temperature contact surface 352 is provided at the high temperature stop position PX4 at which the rotation of the water temperature adjustment unit 27 is stopped when the water temperature adjustment unit 27 is rotated in the circumferential direction (that is, the H direction shown in FIG. It is done. In the high temperature stop position PX4, the side surface 414 of the locking portion 412 abuts on the high temperature contact surface 352.

  A main body water discharge port 30 is provided on a bottom surface of a central portion of the faucet main body 28 in the X direction. The inflow port 31 of the water discharge pipe 21 is connected to the main body water discharge port 30 via the connection portion 33. The main body spout 30, the connection portion 33 and the inflow port 31 are provided coaxially. The water discharge pipe 21 can rotate in a horizontal plane centering on the axis J29. The water discharge pipe 21 is detachably provided from the faucet main body 28 at the main water discharge port 30.

  The water discharge pipe 21 is a straight pipe which extends in a predetermined direction (in the present embodiment, in the horizontal direction) and has a flow passage R21. The width in the X direction of the flow passage R21 of the water discharge pipe 21 is larger than the height of the flow passage R21. The inflow port 31 is provided on the upper surface (that is, the surface opposite to the surface facing the bath 11) of the upstream end of the water discharge pipe 21. The main body water discharge port 30 is provided on the upper surface of the upstream end of the water discharge pipe 21. The water discharge pipe 21 is made of, for example, brass.

  As shown in FIG. 3, the composite water discharger 25 includes a cover 32, a discharge switching unit (handle) 34 housed in the cover 32, a straightening discharger 36, a mist discharger 38, and a water discharge pipe connector 230. Is equipped. The composite water discharger 25 is connected to the downstream end of the water discharge pipe 21.

  The cover 32 includes a water discharge pipe fitting portion 48 and a cover main body 46, and the cover main body 46 is configured of a first cover 41 and a second cover 42. The water discharge pipe fitting portion 48 is externally fitted to the downstream end of the water discharge pipe 21. The cover main body 46 bulges to the end of the water discharge pipe fitting portion 48, that is, the side opposite to the water discharge pipe 21 of the water discharge pipe fitting portion 48. Hereinafter, in the description of the configurations of the cover main body 46, the discharge switching unit 34, the straightening discharge unit 36, and the mist discharge unit 38, the direction along the axis J25 which is the center of the cover 32 and the discharge switching unit 34 will be referred to as the vertical direction. The side closer to the discharge switching portion 34 in the vertical direction is referred to as the upper side, and the side closer to the straightening discharge portion 36 or the mist discharge portion 38, in other words, the side closer to the bathtub 11 is referred to as the lower side.

  A water discharge pipe fitting upper portion 43 is formed on the upstream side surface 41 r of the first cover 41. The water discharge pipe fitting upper portion 43 protrudes outward in the radial direction (hereinafter, simply referred to as “radial direction”) centering on the axis J 25 from the side surface 41 r.

  The outer peripheral edge of the upper end of the first cover 41 is formed with a recess 54 that is recessed inward in the radial direction. The decorative member 56 is fitted in the recess 54.

  A water discharge pipe fitting lower portion 44 is formed on the upstream side surface 42 r of the second cover 42. The water discharge pipe fitting lower portion 44 protrudes outward in the radial direction from the side surface 42r. The water discharge pipe fitting lower portion 44 is externally fitted below the downstream end of the water discharge pipe 21. As shown in FIG. 2, the second cover 42 is engaged with the lower portion on the upstream side of the first cover 41. As shown in FIG. 3, a protrusion 244 is formed on the inner peripheral surface of the side surface 42 r. The protrusion 244 protrudes radially inward from the inner circumferential surface of the side surface 42 r and extends in the vertical direction.

  As shown in FIG. 2, the cover main body 46 is formed in a circular shape in top view, and is expanded in diameter as it goes from the upper side to the lower side. According to the above-mentioned general form, the cover main body 46 is formed with a hollow portion S1 whose diameter increases as it proceeds from the top to the bottom.

  The discharge switching unit 34 includes a handle cover 50 and a switching valve 60. The handle cover 50 is provided for the user to operate the switching valve 60. The handle cover 50 is disposed above the cover 32. The handle cover 50 has substantially the same diameter as the upper end of the cover 32, is formed in a bottomed cylindrical shape, and has the bottom surface facing upward. The handle cover 50 is coaxially connected to the switching valve 60, and interlocked with the switching valve 60 to rotate about an axis J25. A protrusion 51 (see FIG. 2) is provided on the outer peripheral surface of the handle cover 50. The protrusion 51 protrudes radially outward from the outer peripheral surface of the handle cover 50 and extends in the vertical direction. The projection 51 is a mark when the user of the water faucet 20 determines which of the rectification and / or the mist to be discharged.

  The switching valve 60 is disposed in the hollow portion S1. As shown in FIGS. 3 and 4, the switching valve 60 is directed from the upper side to the lower side, the E ring 70, the stopper 80, the quick ring 90, the spring 98, the switching valve holder 100, the switching portion 120, the cylinder plate 140, A packing 150 and a water stop valve 160 are provided. The centers of the plurality of components constituting the switching valve 60 in top view are aligned with the axis J25.

  As shown in FIG. 4, the E-ring 70 includes a main body 72 and three locking portions 74A, 74B, and 74C. The main body 72 is formed to draw an arc in top view. The locking portions 74A and 74B are provided at both ends in a circumferential direction (hereinafter, simply referred to as "circumferential direction") around the axis J25 of the main body 72. The locking portion 74C is provided at a substantially central portion in the circumferential direction of the main body 72. Each of the three locking portions 74A, 74B, and 74C protrudes from the main body 72 toward the radial center, and the E ring 70 is formed in a substantially E shape in a plan view.

  The stopper 80 has a diameter substantially the same as that of the E-ring 70, and is formed in a tubular shape. A through hole 82 is formed in the stopper 80 along the direction of the axis J25. Two projections 84 which project downward from the bottom surface and are formed in a semicircular shape in a side view are provided on the bottom surface of the stopper 80 so as to face each other in the circumferential direction.

  The quick ring 90 comprises an annular body 92 and two protrusions 94. The protrusion 94 protrudes outward in the radial direction of the main body 92. A recess 96 is formed on the top surface of each of the two protrusions 94. The recess 96 is formed such that the projection 84 is fitted. The bottom of each of the two protrusions 94 is formed with a recess 97 which is recessed upward from the bottom (see FIG. 3).

  The switching valve holder 100 includes a bottom surface portion 103, an inner wall portion 104 extending upward from the bottom surface portion 103, a middle wall portion 106 (see FIG. 9), an outer wall portion 110, and a leg portion 112 extending downward from the bottom surface portion 103. There is.

  As shown in FIGS. 3 and 4, the bottom portion 103 is expanded in the circumferential direction. In the bottom portion 103, a through hole 102 extending in the direction of the axis J25 is formed. The inner wall portion 104 forms an outer peripheral wall of the through hole 102. The inner wall portion 106 is radially outward of the inner wall portion 104. In order to reduce the weight, the middle wall portion 106 is provided at two places at intervals in the circumferential direction. At a part of the upper end of the middle wall portion 106, a protrusion 106t is provided which protrudes further upward from the upper end.

  The outer wall portion 110 is radially outward of the middle wall portion 106. That is, the upper side of the switching valve holder 100 has a triple pipe structure. The outer peripheral surface of the outer wall portion 110 is formed with a recess 260 recessed inward in the radial direction (see FIG. 3). The packing 261 is accommodated in the recess 260. The leg portion 112 extends downward from the radially outer lower surface of the bottom portion 103. In the leg portion 112, a plurality of through holes 114 are formed at intervals in the circumferential direction. Recesses 115 and 116 are formed in the lower end edge of the leg portion 112. The recesses 115 and 116 are recessed upward from the lower end edge of the leg 112.

  The switching unit 120 includes an interlocking unit (switching shaft) 122, a core unit 124, and a hot water inflow unit 126 from the upper side to the lower side. The interlocking portion 122 is formed in a smooth rectangular shape in a top view. A recess 125 is formed on the upper surface of the interlocking portion 122. A locking portion 123 is provided on the outer peripheral surface of the interlocking portion 122. The locking portion 123 protrudes radially outward from the outer peripheral surface, and extends over the entire interlocking portion 122 in the vertical direction. Further, a groove 127 is formed on the outer peripheral surface of the interlocking portion 122. The groove 127 extends all around the interlocking portion 122 in the circumferential direction. The vertical size (that is, the width of the groove) of the groove 127 is set in accordance with the vertical size (thickness) of the E-ring 70.

  The core portion 124 is connected to the lower end of the interlocking portion 122, and is formed in a tubular shape. The outer peripheral surface of the core portion 124 is formed with a notch 138 which is recessed toward the center in the radial direction. The packing 139 is accommodated in the notch 138 (see FIG. 3). An enlarged diameter portion 128 is provided at the lower end portion of the core portion 124. The enlarged diameter portion 128 extends outward in the radial direction from the lower end portion.

  The hot water inflow portion 126 is formed in an annular and plate shape, and is supported by the enlarged diameter portion 128 by the three support portions 130 in the vertical direction. The support portion 130 protrudes radially outward from the enlarged diameter portion 128, is bent downward, and is connected to the upper surface of the hot water inflow portion 126. A hot water inlet 134 is formed inside the hot water inlet 126 in the radial direction. A downwardly extending extension portion 137 is provided on the outer side in the radial direction of the bottom surface of the hot water inflow portion 126. A step 136 is formed below the hot water inlet 126 and radially inside the extension 137 (see FIG. 4). At two locations on the outer peripheral edge of the hot water inflow portion 126, notches 138 which are cut out toward the center in the radial direction are formed.

  As shown in FIG. 3, the lower side than the groove 127 of the interlocking portion 122 is disposed in the hollow portion S1. An E-ring 70 is fitted in the groove 127. The upper portion of the through hole 82 has the same shape as the outer peripheral edge of the interlocking portion 122 below the groove 127, and the lower portion of the through hole 82 has the same shape as the outer peripheral edge of the core portion 124. Therefore, the lower portion of the interlocking portion 122 and the upper end portion of the core portion 124 are inserted into the through hole 82.

  The protrusion 84 is fitted in the recess 96, and the upper end of the spring 98 is inserted into the recess 97. As shown in FIGS. 3 and 4, the lower end portion of the spring 98 is inserted in a recess formed between the inner wall portion 104 and the middle wall portion 106 in the radial direction. The middle wall portion 106 sandwiches the lower end portion of the stopper 80, the quick ring 90, and the spring 98 with the interlocking portion 122. (See Figure 9)

  The cylinder plate 140 is formed in a substantially disk shape and fitted in the step 136. The cylinder plate 140 is disposed at the bottom of the hot water inlet 134 in a state of being fitted to the step 136. In the cylinder plate 140, a through hole (first through hole) 142A and a through hole (second through hole) 142B are formed. The two through holes 142A and 142B are formed to be spaced apart from each other so as to open approximately 1/4 each in the circumferential direction. In the cylinder plate 140, the region other than the through holes 142A and 142B is formed as a plate surface, and closes the hot water inlet 134. In the outer peripheral portion of the cylinder plate 140, protrusions 144 are provided at two locations corresponding to the notches 138. The protrusion 144 extends upward from the outer peripheral portion of the cylinder plate 140 and is fitted into the notch 138.

  In the packing 150, two through holes 152A and 152B are formed. The packing 150 is formed in a shape that can be fitted into a recess 165 of a water shutoff valve 160 described later.

  The water stop valve 160 includes a branch portion 162 and a support wall 164. The branch portion 162 is formed in a circular shape in plan view. A water passage hole (first water passage hole) 162A and a water passage hole (second water passage hole) 162B are formed in the branch portion 162. The water flow holes 162A and 162B open approximately 1⁄3 each adjacent in the circumferential direction. Each of the through holes 152A and 152B of the packing 150 has a shape similar to that of each of the water flow holes 162A and 162B in top view, and is formed a little larger than the water flow holes 162A and 162B. Partition walls 163A and 163B are provided on the outer peripheral edge of the water flow holes 162A and 162B. On the periphery of the partition walls 163A and 163B, a recessed portion 165 recessed below the outer peripheral upper portion 263 on the outer side in the radial direction is formed. The recessed portion 165 separates the partition walls 163A and 163B from each other along the outer peripheral edge of the partition walls 163A and 163B. The packing 150 is fitted in the recess 165.

  Projections 118 and 119 are formed on the outer peripheral edge of the upper surface of the outer peripheral upper portion 263. The protrusions 118 and 119 extend upward from the outer peripheral edge of the upper surface of the outer peripheral upper portion 263. The shape of the protrusion 118 in a side view is substantially the same as the shape of the recess 115 in a side view. The shape of the protrusion 119 in a side view is the same as the shape of the recess 116 in a side view. The protrusion 118 fits into the recess 115, and the protrusion 119 fits into the recess 116.

  As shown in FIG. 4, in the upper surface of the branched portion 162, in the circumferential direction, a part (remaining part) of 1⁄3 in which the water flow holes 162A and 162B are not formed is closed in plan view. A recess 166 is formed in the remaining portion. The depth of the recess 166 is substantially the same as the depth of the recess 165. Between the recess 165 and the recess 166, there are partition walls 163C and 163D. There is a gap g between the partition walls 163C and 163D. The recess 165 and the recess 166 communicate with each other via the gap g. As shown in FIG. 3, a recess 168 that is recessed inward in the radial direction is formed on the outer peripheral surface of the branch portion 162. The packing 169 is accommodated in the recess 168.

  As shown in FIG. 5, the support wall 164 extends downward from the outer periphery of the bottom surface of the branch portion 162. A mist discharge port 170M is opened at a portion of the support wall 164 corresponding to the lower side in the circumferential direction of the water flow hole 162B and at an upper portion of the support wall 164. Inside the support wall 164, a mist guiding wall 172 is provided.

  The mist water guiding wall 172 is formed to connect the water flow hole 162B and the mist water discharge port 170M. The mist water guiding wall 172 includes adjacent side walls 172A and 172B and a bottom wall 172C connected to the side walls 172A and 172B. The side walls 172A and 172B respectively branch below the respective portions of the concave portion 165 separating the water flow holes 162A and 162B (concave portion 165j) and the portion separating the water flow hole 162B and the concave portion 166 (concave portion 165k) From the lower surface of the portion 162, it is gently curved toward the lower end of the mist outlet 170M while being lowered. The bottom wall 172C extends from the lower end of each of the side walls 172A and 172B to the lower end of the mist outlet 170M, and extends along a plane perpendicular to the axis J25. That is, the mist flow path RM is configured by the bottom wall 172C and the side walls 172A and 172B.

  As shown in FIG. 6, a partition wall 174 is provided inside the support wall 164 in addition to the mist water guiding wall 172. The partition wall 174 is provided on the inner side in the radial direction of the support wall 164 along the lower surface of the branch portion 162 which is located below the portion (concave portion 165m) separating the water passage hole 162A and the concave portion 166 from the junction of the side walls 172A and 172B. It is arranged to the surface and extends in the vertical direction. A straightening water discharge port 170S is opened on the entire lower surface of the support wall 164.

  In the water stop valve 160, the straightening flow passage RS is formed by communication between the water flow hole 162A and the straightening water discharge port 170S inside the support wall 164. The mist flow path RM is formed by communication between the water flow hole 162B and the mist discharge port 170M. The straightening flow passage RS and the mist flow passage are completely blocked by the mist guiding wall 172, and the straightening water spout 170S and the mist discharge port 170M are completely blocked.

  At the lower part of the outer peripheral surface of the support wall 164, a recess 177 recessed inward in the radial direction is formed. The packing 178 is accommodated in the recess 177. At the lower end of the support wall 164, an annular portion 179 for positioning the water stop valve 160 in the radial direction is fitted. The annular portion 179 includes a base 223 and a locking portion 224. The base 223 is in contact with the lower end of the support wall 164 from below. The locking portion 224 extends upward from the inner peripheral edge of the base 223 and contacts the radially inner side of the lower end portion of the support wall 164.

  As shown in FIG. 3, the rectifying and discharging unit 36 and the mist discharging unit 38 are connected to the lower portion of the discharge switching unit 34 and provided in the fixing unit 200. The fixing unit 200 includes an inner wall 202, an outer wall 204, and a bottom 206. The bottom portion 206 is fitted into the opening at the lower end of the cover main body 46. At the radial center of the bottom portion 206, an insertion hole 208 recessed upward is formed. The side wall of the insertion hole 208 is formed with a female screw. A straightening water discharger 210 called a so-called strainer or the like is screwed into the insertion hole 208. An external thread is formed on the side surface of the straightening water discharger 210 so that the straightening water discharger 210 can be screwed into the insertion hole 208 from below. At the bottom of the straightening water discharger 210, a straightening net is provided. A straightening water discharge port 220S is provided at the center in the radial direction of the lower end of the straightening water discharger 210.

  The inner wall portion 202 is disposed at the outer peripheral edge of the insertion hole 208 and extends upward from the bottom portion 206 in a substantially cylindrical shape. A protrusion 212 is provided at the upper end portion of the insertion hole 208 in the vertical direction, that is, in the vicinity of the center of the inner wall portion 202. The protrusion 212 protrudes radially inward from the inner wall portion 202. Through holes 214 are formed between the protrusions 212 in the radial direction. The insertion hole 208 and the through hole 214 communicate with each other. A base 223 is disposed above the protrusion 212. The lower end portion of the support wall 164 is locked to the inside in the radial direction of the upper inner wall portion 202 of the protrusion 212.

  The outer wall portion 204 is provided radially outward of the inner wall portion 202, and extends from the bottom portion 206 upward in a substantially cylindrical shape. An external thread is formed on the upper portion of the outer peripheral surface of the outer wall portion 204. At a lower portion of the outer peripheral surface of the outer wall portion 204, a concave portion 252 which is concave inward in the radial direction is formed. The packing 253 is accommodated in the recess 252.

  A mist water passage hole 216 is formed between the inner wall portion 202 and the outer wall portion 204 in the fixed portion 200. The mist water flow holes 216 are formed at equal intervals along the circumferential direction. A diffuser 218 is inserted into each mist passage 216. The diffusion tool 218 includes a grip portion 226 and a diffusion water discharge portion 228. The grip portion 226 is formed in a substantially cylindrical shape having a diameter smaller than that of the mist water passage hole 216. The diffusion water spouting portion 228 is continuously provided below the grip portion 226 and has substantially the same diameter as the mist water passing hole 216. A spiral groove 229 is formed on the outer peripheral surface of the diffusion water discharge portion 228 along the vertical direction. The lower part of the mist water flow hole 216 is once diameter-reduced, and it is diameter-expanded again after that, and it becomes mist discharge port 220M. The diameter of the mist outlet 220M is configured to be substantially the same as the diameter of the upper end portion of the mist water flow hole 216.

  As can be seen with reference to FIG. 3, the upper portion of the interlocking portion 122 protrudes upward from the upper end of the cover 32. The interlocking portion 122 is connected to the handle cover 50 via the handle connection portion 65. The handle connection portion 65 includes a main body 66 and an extension portion 67. The main body 66 is formed to fit inside the handle cover 50. The outer peripheral surface of the main body 66 is formed with a recess 68 which is recessed toward the center in the radial direction. The packing 69 is accommodated in the recess 68.

  A first recess 67A is formed on the upper surface of the main body 66. A through hole 67B having a diameter smaller than that of the first recess 67A is formed on the bottom of the first recess 67A. The centers of the first recess 67A and the through hole 67B are aligned with the axis J25. The screw 201 is inserted into the first recess 67A, the through hole 67B, and the recess 125 of the switching unit 120. The head of the screw 201 is disposed in the first recess 67A. The shaft portion of the screw 201 is inserted into the through hole 67 </ b> B and screwed into the recess 125.

  As shown in FIG. 8, the water discharge pipe connection portion 230 is directly connected to the downstream end of the water discharge pipe 21. As shown in FIGS. 3 and 7, the water discharge pipe connection portion 230 includes an upper portion 232 and a lower portion 234. An insertion port 236 is provided on the side surface of the upper portion 232. The downstream end of the water discharge pipe 21 is inserted into the insertion port 236. The height of the insertion opening 236 is the same as the height of the support portion 130. At the upper end portion of the inner peripheral surface of the upper portion 232, a concave portion 238 which is recessed outward in the radial direction is formed. A C ring 239 formed on a circular arc in plan view is inserted into the recess 238. The outer peripheral edge of the upper end portion of the outer wall portion 110 is locked to a step that can be formed on the radial inner side of the upper portion 232 and the lower side of the C ring 239. A recess 291 is formed on the upstream side of the inner surface of the lower portion 234 (ie, the side of the water discharge pipe 21 in top view).

  Lower portion 234 has a larger diameter than upper portion 232. An internal thread is formed on at least a portion of the inner circumferential surface of the lower portion 234 in the vertical direction. The externally threaded portion of the outer circumferential surface of the outer wall portion 204 is screwed into the internally threaded portion of the inner circumferential surface of the lower portion 234, and the lower portion 234 and the fixing portion 200 are connected. As a result, the configuration of the fixed portion 200 above the bottom portion 206 and all the components radially inward of the fixed portion 200 are contained in the lower portion 234. Although hidden in FIG. 7, a recess is formed on the outer peripheral surface of the lower portion 234 at a position below the downstream end of the water discharge pipe 21. The protrusion 244 is fitted in this recess.

  Fixing of the components described above to the water discharge pipe 21 will be described with reference to FIGS. 7 and 8. In FIG. 7, the upper part 232 is inserted into the downstream end of the water discharge pipe 21, and the water discharge pipe 21 and the upper part 232 are brazed. As a result, the flow path R21, the insertion port 236, and the hot water inlet 134 are in communication. From the state shown in FIG. 7, first, the C ring 239 is disposed at a predetermined position of the outer wall portion 110 from above, and the switching valve 60 and the annular portion 179 are inserted into the hollow portion S4 of the water discharge pipe connection portion 230 from above. Ru. Next, the packing 253 is fitted in the recess 252, and the fixing portion 200 is screwed from the lower side to the inside of the lower portion 234 while the diffusion tool 218 is inserted into the mist water passage hole 216. The straightening water discharger 210 is screwed into the insertion hole 208 from below.

  Similar to the state shown in FIG. 7, in FIG. 8, the downstream end of the water discharge pipe 21 and the upper portion 232 are brazed. From the state shown in FIG. 8, first, the first cover 41 covers the water discharge pipe connection portion 230 from above, and the decorative member 56 is fitted in the recess 54. Then, the packing 69 is fitted in the recess 68, and the handle connection portion 65 is fitted in the interlocking portion 122 from above through the opening at the upper end of the first cover 41. The handle connection 65 is fixed to the upper portion 232 by screwing the screw 201 into the recess 125 from above.

  Subsequently, the handle cover 50 is attached to the main body 66. As described above, the handle cover 50 directly touched by the user of the faucet 20 is opposite to the side (ie, the lower side of the combined water discharger 25) on which at least one of the flow straightening and the mist is discharged. It is provided on the upper side of the composite water discharger 25). Subsequently, when the protrusion 244 is fitted into the recess of the outer peripheral surface of the lower portion 234, the second cover 42 is attached to the lower portion 234 (see FIG. 3). A water discharge pipe fitting lower portion 44 is mounted below the downstream end of the water discharge pipe 21. Furthermore, the second cover 42 is engaged with the lower portion on the upstream side of the projection first cover 41 so that the projection 212 fits into the recess 291.

  Next, with reference to FIGS. 9 to 14, a method and principle of switching water discharge from the faucet 20 to at least one or both of rectification and mist will be described.

<Common water discharge to composite water discharge part>
When a user of the faucet 20 (hereinafter sometimes referred to simply as the "user") moves the control lever 29 to the "water discharge start" position, the hot water W (ie, water having a desired water temperature) is discharged from the water discharge operating portion 23 From the flow path R21 of the water discharge pipe 21 and flows into the combined water discharge portion 25. The flow path from the insertion port 236 to the hot water inlet 134 is a common flow path RC which does not depend on the water discharge form. The hot water W having flowed into the combined water discharger 25 flows down the common flow path RC.

<Water discharge only for rectification>
In order to cause only the straightening water to be discharged by the water faucet 20, the user moves the projection 51 of the handle cover 50 to the position of "straight flow water" in the circumferential direction. In conjunction with the rotation of the handle cover 50, the interlocking portion 122 and the cylinder plate 140 rotate about the axis J25. As shown in (a), (b) of FIG. 9 and FIG. 10, the through hole 142A and the recess 166 overlap from the upper side to the lower side, and the through hole 142B and the water flow hole 162A overlap. As a result, the through hole 142B and the water flow hole 162A communicate with each other, the communication portion 273A is formed, and the straightening flow passage RS is opened. On the other hand, as shown in FIG. 10, the through hole 142A is closed by the lower surface of the recess 166. Therefore, the flow destination of the hot water W flowing down the common flow channel RC is switched to only the straightening flow channel RS, and the hot water W flowed down the through hole 142A is not discharged. The hot water W which has flowed down the straightening flow path RS further flows down from the straightening water discharge port 170S, and is discharged as straightening from the straightening water discharge port 220S. By such an operation, only the straightening WS (see FIG. 2) is discharged from the composite water discharger 25.

<Rectification and mist discharge>
In order for the faucet 20 to rectify and discharge the mist, the user moves the projection 51 of the handle cover 50 in the circumferential direction to a desired position between the "rectified spout" and the "mist spout". In conjunction with the rotation of the handle cover 50, the interlocking portion 122 and the cylinder plate 140 rotate about the axis J25. As shown in (a), (b) of FIG. 11 and FIG. 12, from the upper side to the lower side, the through hole 142A and the water passage hole 162A, and part of the through hole 142B overlap the water passage hole 162A, The remaining portion of the through hole 142B partially overlaps the water passage hole 162B. As a result, the communication portion 273A is formed, the through hole 142A and the water passage hole 162A communicate with each other, and the straightening flow passage RS is opened. At the same time, the communication portion 273B is formed, the through hole 142B and the water flow hole 162B communicate with each other, and the mist flow path RM is opened. Therefore, among the hot water W flowing down the common flow path RC, the hot water W flowing down the through hole 142A flows down the straightening flow path RS and is discharged as straightening WS from the straightening water spout 220S. The hot water W which has flowed down the communication portion 142Ba communicated with the through hole 142B and the water flow hole 162A also flows down the straightening flow path RS and is discharged as straightening WS from the straightening water spout 220S. The hot water W which has flowed down the communication portion 142Bb communicated with the through hole 142B and the water flow hole 162B flows down the mist flow path RM and is discharged as mist WM (see FIG. 2) from the mist discharge port 220M.

  When the user moves the position of the protrusion 51 of the handle cover 50 in the circumferential direction between "rectify" and "mist", it interlocks with the rotation of the handle cover 50, and the area ratio between the communication portion 142Ba and the communication portion 142Bb change. The ratio of the rectification and the water discharge amount of the mist is (total area of the communicating portion 273A communicated with the through hole 142A and the through hole 142B and the water passing hole 162A) and (the through hole 142A and the through hole 142B and the water passing hole 162B It changes with the ratio of the total area of the communicating part 273B which connected. By this, the user can change the ratio of the rectification and the water discharge amount of the mist to a desired ratio by changing the position of the protrusion 51 of the handle cover 50. That is, the faucet 20 is configured such that the switching unit 120 can adjust the ratio of the amount of hot water W allowed to flow down to the straightening water spout 220S and the amount of hot water W allowed to flow down to the mist spout 220M.

<Water discharge only with mist>
In order to discharge only mist with the faucet 20, the user moves the protrusion 51 of the handle cover 50 to the position of "mist spout" in the circumferential direction. In conjunction with the rotation of the handle cover 50, the interlocking portion 122 and the cylinder plate 140 rotate about the axis J25. As shown in (a) and (b) of FIG. 13 and FIG. 14, a part of the through hole 142A and a part of the through hole 142B overlap the water passage hole 162B from the upper side to the lower side. The through holes 142A and 142B do not overlap the water passage hole 162A (and the recess 166). As a result, the communication parts 142Ab and 142Bb, ie, the communication parts 273B are formed, the through holes 142A and 142B communicate with the water flow holes 162B, and only the mist flow path RM is opened. On the other hand, as shown in FIG. 14, the water flow holes 162A and the recess 166 are closed at portions of the cylinder plate 140 where the through holes 142A and 142B are not provided. Accordingly, the destination of the hot water W flowing down the common flow channel RC is switched to only the mist flow channel RS. The hot water W which has flowed down the mist flow path RM is spouted as mist from the mist spout 220M. By such an operation, only the mist WM is discharged from the composite water discharger 25.

<Method of water temperature adjustment>
A method of adjusting the temperature of the hot and cold water W discharged by the water faucet 20 will be described.

  If the user rotates the water temperature adjusting unit 27 in the H direction from the low temperature side (for example, the low temperature stop position PX0) in the C direction without pressing the safety button 410, the safety button 410 located at the first position P1 in the R direction. The side surface 414 of the locking portion 412 abuts on the first abutment surface 322, and the rotation of the water temperature adjusting portion 27 temporarily stops. At this time, the safety button 410 is disposed at a predetermined position PX1 in the C direction. In this state, the user can discharge, for example, hot water W having a hot water temperature of 42 degrees from the composite water discharger 25.

  Next, when the user presses the safety button 410 inward from the outside in the R direction, the safety button 410 is moved to the second position P2 in the R direction while being guided by the first abutment surface 322. Thereafter, when the user rotates the water temperature adjusting portion 27 in the H direction while pressing the safety button 410, the locking portion 412 in the second position P2 is not changed in the R direction but contacts the first locking surface 318. While being in contact, it moves to the back side in the H direction and abuts on the second abutment surface 340. By this, the rotation of the water temperature adjusting unit 27 stops again at the position PX2 and does not suddenly rotate too far to the back in the H direction (for example, reach the high temperature upper limit position PX4 at once). In this state, the user can reliably discharge, for example, the hot water W having a hot water temperature of 45 degrees from the composite water discharger 25.

  With the safety button 410 positioned at the predetermined position PX1, the safety button 410 is pressed inwardly from the outside, and the locking portion 412 is guided inward in the R direction from the first abutment surface 322 When the water temperature adjusting portion 27 is turned in the H direction, the locking portion 412 gets over the tip end 323. When the user releases the pressing of the safety button 410 (releases the safety button 410) and the water temperature adjusting portion 27 is rotated in the H direction, the locking portion 412 is inclined. While being guided along 332, it moves from the inside to the outside in the R direction, moves to the back side in the H direction, and abuts on the third contact surface 334. As a result, the rotation of the water temperature adjusting unit 27 stops again at the position PX3 and does not suddenly rotate to the far side in the H direction. In this state, the user can reliably discharge, for example, the hot water W having a hot water temperature of 45 degrees from the composite water discharger 25. When the pressing of the safety button 410 is released (the safety button is released) in a state where the locking portion 412 is in contact with the second contact surface 340, the locking portion 412 is in contact with the inclined surface 332 as described above. When returning to the position and rotating in the H direction, the locking portion 412 abuts on the third abutment surface 334.

  After the water temperature adjusting portion 27 stops at the position PX3 in the C direction, when the safety button 410 is pressed, the locking portion 412 moves inward from the first position P1 in the R direction. Then, the locking portion 412 abuts on the surface 342 extending along the H direction from the tip of the second contact surface 340. In this state, when the water temperature adjusting portion 27 is rotated in the H direction, the locking portion 412 is guided to the inside of the groove portion 350, moves to the back side in the H direction, and becomes rotatable until coming into contact with the high temperature contact surface 352. Since the locking portion 412 can not move to the back side in the H direction with respect to the high temperature contact surface 352, the rotation of the water temperature adjusting unit 27 to the high temperature side also stops, and the user back side in the H direction from the high temperature stopping position PX4. It can not be turned to. In this state, the user can discharge, for example, the hot water W having a hot water temperature of 45 degrees or more from the composite water discharger 25.

  The faucet 20 of the present embodiment described above is connected to the faucet body 28 and the faucet body 28 and rotates in the C direction around the axis, and adjusts the temperature of the hot water W discharged from the faucet body 28 Water temperature adjusting portion 27, a safety button 410 projecting outward from the outer peripheral surface 300 r in the R direction and moving inward from the outside in the R direction when pressed from the outside in the R direction, R direction inner side of the safety button 410 And a locking portion 412 provided at the tip of the housing. In addition, when the water temperature adjusting portion 27 is rotated in the H direction in a state in which the safety button 410 is not pressed, provided on the faucet body 28 between the low temperature stop position PX0 and the high temperature stop position PX4 in the C direction. The safety button is provided between the low temperature stop position PX0 and the high temperature stop position PX4 in the C direction, with the first contact surface 322 that the lock portion 412 contacts and regulates movement of the lock portion 412 in the H direction. When the water temperature adjusting portion 27 is rotated in the H direction in a state where the 410 is pressed to the innermost side in the R direction (that is, the second position P2), the locking portion 412 abuts, and the locking portion in the H direction A second abutment surface 340 is provided which regulates the movement of 412.

  According to the faucet 20, the user operates the water temperature adjusting portion 27 while pressing the safety button 410 from the state where the locking portion 412 hits the first contact surface 322 and the movement in the H direction is restricted. Even if the water temperature adjusting portion 27 rotates to the high temperature side in the C direction with the button 410 being on the innermost side in the radial direction, the locking portion 412 hits the second contact surface 340 at the position PX2 and the high temperature of the water temperature adjusting portion 27 It is possible to regulate rotation to the side. As a result, even if the water temperature adjusting unit 27 is operated while the safety button is pressed, it is possible to prevent the user from discharging the hot water W.

  Further, when the safety button 410 is pressed from the outside in the R direction, the locking portion 412 moves from the first position P1 in the R direction to the second position P2 in the faucet 20 of the present embodiment. When the water temperature adjusting unit 27 is rotated while the safety button 410 is not pressed, the water temperature adjusting unit 27 is rotated while the safety button 410 is pressed to the first contact surface The third contact surface 334 restricts the movement of the hot water W in the circumferential direction when the locking portion 412 returned to the first position P1 is abutted and the hot water W becomes hot. Are further provided.

  According to the water faucet 20, after the user pushes the safety button 410 once and exceeds the first contact surface 322, the safety button 410 is released and the water temperature adjusting portion 27 is turned to rotate the water temperature adjusting portion 27 in the H direction. Then, the locking portion 412 abuts on the third contact surface 334. As a result, the rotation of the water temperature adjusting unit 27 stops at the predetermined position PX3 in the C direction. In addition, when the user pushes the safety button 410 inward in the R direction after the safety button 410 exceeds the first contact surface 322, the locking portion 412 abuts on the first locking surface 318, and the R direction is further increased. It is not possible to press the safety button 410 inside. In this state, when the user operates the water temperature adjusting unit 27 and rotates the water temperature adjusting unit 27 in the H direction, the locking unit 412 contacts the second contact surface 340, so the rotation of the water temperature adjusting unit 27 is in the C direction. It stops at a predetermined position PX2. Therefore, regardless of whether the user presses and releases the safety button 410 and then presses or operates (ie, with the safety button 410 pressed), the water temperature adjusting section 27 suddenly moves to the high temperature side. It is possible to prevent the hot water W from being discharged from the faucet 20 without rotating.

  Further, the faucet 20 of the present embodiment is formed on the faucet body 28 between the second contact surface 340 and the third contact surface 334 in the C direction, and extends along the C direction, and the locking portion 412 is formed. A guideable groove 350 is formed.

  According to the faucet 20, when the user wants to use the hot water W, the safety button 410 is R when the locking portion 412 is in contact with the second contact surface 340 or the third contact surface 334. The locking portion 412 is guided to the groove portion 350 by holding at a predetermined position in the direction and the C direction (that is, between the first position P1 and the second position P2 and between the predetermined position PX2 and PX3). The hot water W can be discharged.

  Further, in the water faucet 20 of the present embodiment, the second contact surface 340 is formed on the near side in the circumferential direction from the third contact surface.

  According to the faucet 20, since the second contact surface is on the near side of the third contact surface 334 in the circumferential direction, the user is safe from the state where the locking portion 412 is locked to the third contact surface 334. When the button 410 is pushed inward in the R direction, the locking portion 412 abuts the inner side surface in the R direction (that is, the surface 342 along the C direction) of the groove 350 and is smoothly guided into the groove 350. By this, when a user wants to use hot water W, it becomes possible to discharge hot water W reliably.

  Further, in the faucet 20 of the present embodiment, the tip 323 inside the R direction of the first contact surface 322 is inside the tip 335 inside the R direction of the second contact surface 340 in the R direction. From this, as the hot water W becomes hot, the inclined surface 332 which inclines outward from the inner side of R direction is formed as it progresses to H direction.

  According to the faucet 20, when the user tries to turn the water temperature adjusting portion 27 along the C direction, the locking portion 412 abuts on the first abutment surface 322. Thereafter, when the user pushes the safety button 410 inward from the outside in the R direction, the locking portion 412 moves in accordance with the inclination of the first abutment surface 322 and reaches the tip 323 and climbs over it. It is guided along and smoothly guided towards the third abutment surface 334.

  Although the preferred embodiments of the present invention have been described above in detail, the present invention is not limited to the specific embodiments, and various modifications may be made within the scope of the present invention as set forth in the appended claims. Changes are possible.

  For example, although the above-mentioned embodiment explained the example in which a total of four contact faces were provided, the number of contact faces is not limited to four.

  Moreover, although the above-mentioned embodiment demonstrated the example in which the 1st contact surface 322, the 2nd contact surface 340, the 3rd contact surface 334, and the groove part 350 were all provided in the protrusion part 320, several contact surfaces 360 Are not necessarily provided on the same protrusion 320 and may not necessarily be provided on the stop ring 310.

In addition, the faucet body 28 may not necessarily have the locking portion 412 as long as the safety button 410 can restrict the further inward movement in the radial direction when the safety button 410 is moved inward in the radial direction by an arbitrary configuration. .
The locking portion 412 only needs to be formed to be able to abut on at least the first abutment surface 322 and the second abutment surface 340, and the inside of the cylinder main body 300 along the axis J27 from the inner tip 410a in the R direction. It does not have to be protruded.

  The faucet according to the present invention may not necessarily have the low temperature contact surface 400 as long as the movement of the water temperature adjusting portion 27 in the circumferential direction where the hot water W becomes low temperature at the low temperature stop position PX0 can be stopped. Similarly, the faucet according to the present invention may not necessarily have the high temperature contact surface 352 as long as the movement of the water temperature adjusting portion 27 in the H direction can be stopped at the high temperature stop position PX4.

20 water faucet 21 water discharge pipe 27 water temperature adjustment unit 28 water faucet main body 322 first contact surface 332 inclined surface 334 third contact surface 350 second contact surface 350 groove portion 360 contact surface 410 safety button 412 locking portion P1 first position P2 2 position W hot water

Claims (6)

With faucet body,
A water temperature adjustment unit connected to the faucet body, rotating in the circumferential direction about an axis, and adjusting the temperature of hot and cold water discharged from the faucet body;
A safety button that protrudes outward in the radial direction of the water temperature adjustment portion from the outer peripheral surface of the water temperature adjustment portion, and moves inward from the outer side in the radial direction when pressed from the outer side of the radial direction;
A locking portion provided at a radially inner end of the safety button;
Equipped with
In the faucet body,
In the circumferential direction, a low temperature stop position at which the rotation of the water temperature adjusting unit is stopped when the water temperature adjusting unit is rotated in the circumferential direction where the water temperature is low, and a periphery of the water temperature adjusting unit when the water temperature is high It is provided between the high temperature stop position where rotation of the water temperature adjusting unit stops when rotating in the direction, and the water temperature adjusting unit in the circumferential direction where the hot water becomes high temperature when the safety button is not pressed A first contact surface that restricts movement of the locking portion in the circumferential direction in which the locking portion abuts and the hot water becomes hot when it is rotated;
It is provided between the low temperature stop position and the high temperature stop position in the circumferential direction, and in the circumferential direction in which the hot water becomes hot in the water temperature adjusting portion in a state where the safety button is pressed to the innermost in the radial direction. A faucet provided with a second abutment surface which abuts on the locking portion when it is rotated and restricts movement of the locking portion in the circumferential direction where the hot water becomes hot. When the safety button is pushed from the outside in the radial direction,
The locking portion moves from a first position in the radial direction to a second innermost position in the radial direction from the first position,
In the faucet body,
In the state where the safety button is pressed, the water temperature adjusting unit is rotated, and after crossing over the first contact surface, the pressing of the safety button is released, and the locking portion returned to the first position abuts A third contact surface for restricting movement in the circumferential direction in which the hot water becomes hot
Is provided,
2. The water faucet according to claim 1, wherein the second contact surface abuts the locking portion at the second position, and restricts movement in a circumferential direction in which the hot water becomes hot. In the faucet body,
The groove according to claim 2, formed between the second contact surface in the radial direction and the third contact surface, extending along the circumferential direction and having a groove portion capable of guiding the locking portion. Water faucet.   The water faucet according to claim 3, wherein the second contact surface is formed on the near side in the circumferential direction in which the hot water becomes hot from the third contact surface.   The faucet according to any one of claims 2 to 4, wherein a radially inner end of the first contact surface is located radially inward of a radially inner end of the third contact surface. . The inclined surface which inclines toward an outer side from the inner side of the said radial direction as it progresses to the circumferential direction from which the hot water becomes high temperature from the front-end | tip of the said 1st contact surface is formed in any one of Claims 2-5 The faucet as described in.

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