JP4883485B2 - Hot and cold water faucet and water discharge device provided with the same - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a hot and cold water mixing faucet and a water discharge device including the same, and in particular, by operating a single operation lever, the hot water and water mixing ratio is changed and the water discharge flow rate is adjusted. The present invention relates to a mixing faucet and a water discharge device including the same.

  A so-called single lever type hot and cold water mixing faucet is widely used in which the temperature of hot water discharged changes by rotating a single operating lever in the left-right direction and the flow rate of discharged water changes by rotating in a vertical direction. ing. However, in such a single lever type hot and cold water mixing faucet, when the operation lever is turned to a position where water is discharged to a position where hot hot water is discharged, the operation lever is simply moved in the vertical direction. When the water is rotated and water discharge is started, there is a problem that hot water is unexpectedly discharged. Such hot hot water is particularly uncomfortable when the water is unexpectedly discharged from the shower head.

  Japanese Patent Application Laid-Open No. 9-178008 (Patent Document 1) describes a safety device for a single lever type mixing faucet. As shown in FIG. 11, in the single lever type mixing faucet 101 described in Japanese Patent Laid-Open No. 9-178008, the lever 122 protruding upward from the cartridge case 108 for mixing hot water has a flange portion 123 protruding in the lateral direction. Is formed. The lever 122 is attached with a lever handle 125 that is gripped and operated by the user. Further, a ring 129 is fitted into the upper portion of the cartridge case 108, and a protrusion 132 is formed on a part of the circumference of the ring 129.

  In this single lever type mixing faucet 101, when the lever handle 125 is turned downward to stop the water while the lever handle 125 (lever 122) is turned to the high temperature side, the lever 122 The tip of the portion 123 interferes with the protrusion 132 of the ring 129. This prevents the single lever type mixing faucet 101 from being in a water stop state while the lever 108 is on the high temperature side.

JP-A-9-178008

  However, in the single lever type mixing faucet described in Japanese Patent Application Laid-Open No. 9-178008, the mixing faucet is stopped by causing the protrusion 132 to interfere with the tip of a relatively long flange 123 formed on the lever 122. Blocking water. For this reason, when the lever handle 125 is operated with a strong force, there is a problem that a large bending stress acts on the base end portion of the flange portion 123 and the base end portion is easily damaged.

Further, in the single lever type mixing faucet disclosed in Japanese Patent Laid-Open No. 9-178008, the lever handle 125 is fixed to the lever 122 by receiving the portion of the lever 122 ahead of the flange 123 at the base of the lever handle 125. Has been. For this reason, there is a problem that the length of the lever 122 is increased by the thickness of the flange portion 123, and the entire mixing faucet is enlarged in the height direction.
Furthermore, if the thickness of the collar portion 123 is increased in order to avoid breakage of the collar portion 123, there is a problem that the height of the entire mixed faucet is further increased by the thickness.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a hot and cold water mixing faucet that is not easily damaged even when operated with a large force while preventing hot hot water from being unexpectedly discharged, and a water discharge device including the same. It is said.

  In addition, the present invention provides a hot and cold water mixing faucet that can prevent the entire faucet from becoming large while preventing hot water from being unexpectedly discharged, and a water discharge device including the same. It is an object.

  In order to solve the above-described problems, the present invention is a hot and cold water mixing faucet that adjusts the discharge water flow rate while changing the mixing ratio of supplied hot water and water by operating a single operating lever. A valve body and an operating rod protruding from the valve body in the first axial direction, and the temperature of the hot water flowing out is changed by rotating the operating rod about the first axis, A hot and cold water mixing valve unit in which the discharge flow rate of hot and cold water is changed by turning around a second axis orthogonal to the first axis, a faucet body that receives the hot and cold water mixing valve unit, and a user An operating lever provided with a gripping part to be gripped and operated and formed with an operating rod receiving bore for receiving the distal end side of the operating rod, and a contact provided on a part of the surface on which the operating rod receiving bore is formed. The operation rod is arranged at the upper part of the protrusion and the valve body, and the operation rod is centered about the second axis in a state where the operation rod is rotated about the first axis to the higher temperature side than the predetermined first high temperature position. A water stop regulating member formed with a contact receiving surface that contacts the contact protrusion and prevents the operation rod from rotating to the water stop state when rotated in a direction to reduce the water discharge flow rate. It is characterized by having.

  In the present invention configured as described above, by rotating the operation lever about the first axis, the operation rod is rotated about the first axis, and the temperature of the hot water discharged is changed. The Further, by rotating the operation lever about the second axis, the operation rod is rotated about the second axis, and the discharged water flow rate of the discharged hot water is changed. Further, when the operating rod is rotated in the direction of decreasing the water discharge flow rate with the operating rod rotated to the high temperature side from the first high temperature position, the operating rod is provided on the surface on which the operating rod receiving bore is formed. The contact protrusion and the contact receiving surface of the water stop regulating member are in contact with each other, and the rotation of the operation rod to the water stop state is prevented.

  According to the present invention configured as described above, the rotation of the operation rod to the water stop state is prevented by the contact between the contact protrusion of the operation lever and the contact receiving surface of the water stop regulating member. Compressive stress mainly acts on these members. Thereby, even when the operation lever is operated with a large force, the hot and cold water mixing faucet that is not easily damaged can be configured in a small size.

  In the present invention, preferably, it further includes a valve pressing member for fastening the hot water / mixing valve unit to the faucet body by screwing it to the faucet body, and the water stop regulating member is a screw. Is fixed to the valve pressing member.

  According to the present invention configured as described above, since the water stop regulating member is fixed to the valve pressing member by the screw, even in a configuration in which the contact receiving surface of the water stop regulating member is directed in a direction other than the horizontal direction, It is possible to prevent the water stop regulating member from being removed from the proper position.

  In the present invention, preferably, it further has positioning means for positioning a rotational position between the hot water / water mixing valve unit and the water stop regulating member, and the water stop regulating member has an arc shape centered on the first axis. The screw is screwed into a female screw hole formed in the valve pressing member through the long hole.

  According to the present invention configured as described above, the water stop regulating member is screwed to the valve pressing member through the elongated hole extending in an arc shape, so that the valve pressing member screwed into the faucet body is positioned at the rotational position. Regardless, the water stop regulating member can be fixed at a predetermined rotational position with respect to the hot and cold water mixing valve unit.

  In the present invention, preferably, the operation rod is further prevented from rotating to the higher temperature side than the second high temperature position on the higher temperature side than the first high temperature position regardless of the water discharge state or the water stop state. Has high temperature regulation means.

  According to the present invention configured as described above, water stoppage at a water discharge temperature setting that is problematic when water is unexpectedly discharged is prevented, and hot water that is higher in temperature and inappropriate to be discharged is discharged. Can be prevented.

  Further, the present invention is a water discharge device, a water discharge device main body, the hot and cold water mixing faucet of the present invention attached to the water discharge device main body, and a shower head for discharging hot water mixed by the hot water and water mixing faucet, It is characterized by having.

According to the hot and cold water mixing faucet of the present invention and the water discharge device including the same, it is possible to prevent damage when operated with a large force while preventing hot water from being discharged unexpectedly.
Moreover, according to the hot and cold water mixing faucet of the present invention and the water discharge device provided with the same, it is possible to prevent the hot water tap from being enlarged while preventing hot water from being discharged unexpectedly.

  Next, a water discharge device according to an embodiment of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view showing the entire water discharging device according to the present embodiment. FIG. 2 is an enlarged cross-sectional view showing an enlarged portion of the water discharger shown in FIG. 1 in which a hot and cold water mixing faucet is incorporated. FIG. 3 is an exploded perspective view of the hot and cold water mixing faucet. 4A is a front view of the spacer ring, and FIG. 4B is a rear view thereof. 5A is a front view of the operation lever, and FIG. 5B is a rear view thereof. 6A is a front view of the hot and cold water mixing valve unit, and FIG. 6B is a rear view thereof.

  As shown in FIG. 1, a water discharge device 1 according to the present embodiment includes a water discharge device main body 1 a, a hot and cold water mixing faucet 2 that mixes supplied hot water and water, flows out at an appropriate temperature, and this hot and cold water mixing faucet 2. There is a switching valve 4 for switching the hot water flowing out from the overhead shower or hand shower, a shower head 6 for overhead shower, and a shower head 8 for hand shower.

  The water discharge device 1 according to the present embodiment appropriately mixes hot water and water supplied from the water supply pipe 10 and the hot water supply pipe 12 in the hot water / water mixing faucet 2, and the hot water mixed in the hot water / water mixing faucet 2 According to the switching of 4, the shower head 6 for overhead shower or the shower head 8 for hand shower is discharged. The hot / cold water mixing faucet 2 is a so-called single lever type hot / cold water mixing faucet. When the operation lever 14 is raised upward, water discharge is started, and the operation lever 14 is rotated in the horizontal direction to mix hot water and water. The ratio is changed, and the temperature of the discharged hot water can be changed. Further, when the switching lever 16 of the switching valve 4 is directed in the vertical direction, water is discharged from the shower head 6 for overhead shower, and when it is directed in the horizontal direction, water is discharged from the shower head 8 for hand shower. It is configured to be.

  In addition, as shown in FIG. 2, the switching valve 4 rotates the switching lever 16 to rotate the cylinder 4a disposed in the water channel, so that the opening 4b provided in the cylinder 4a is aligned with the aligned water channel. This is a cylinder type switching valve for switching the flow path.

  As shown in FIGS. 2 and 3, the hot and cold water mixing faucet 2 includes a faucet body 18, a hot and cold water mixing valve unit 20 accommodated in the faucet main body 18, and a faucet for the hot and cold water mixing valve unit 20. And a valve pressing member 22 fixed to the main body 18. Further, the hot and cold water mixing faucet 2 includes an operation lever 14 attached to the hot and cold water mixing valve unit 20, a slip ring 24 disposed on the valve pressing member 22, and a stopper disposed on the hot water and water mixing valve unit 20. It has a spacer ring 26 that is a water regulating member, and a cover ring 28 that is attached to the faucet body 18 and covers the base end of the operation lever 14.

  The faucet body portion 18 includes a valve unit receiving portion 18a that accommodates the hot and cold water mixing valve unit 20, a guide pipe 18b that guides the hot and cold water that has been mixed and discharged by the hot and cold water mixing valve unit 20 to the switching valve 4, and the water discharge device 1. And a leg portion 18c that comes into contact with the wall surface W to be attached. Further, the leg portion 18 c is configured to be connected to a water supply pipe 10 and a hot water supply pipe 12 provided so as to protrude from the wall surface W. A water supply passage and a hot water supply passage are formed in the faucet main body portion 18, and water and hot water supplied from the water supply pipe 10 and the hot water supply pipe 12, respectively, are provided on the bottom surface of the valve unit receiving portion 18a. It is configured to lead to the outflow opening 18d (not shown) and the hot water outflow opening 18e.

The hot and cold water mixing valve unit 20 includes an operating rod 20a, a valve body 30, a fixed disk 32 housed in the valve body 30, a movable disk 34 movable with respect to the fixed disk 32, and a rotary bearing member 36. And having.
The valve body 30 has a substantially cylindrical shape with a step, and houses a fixed disk 32, a movable disk 34, and the like.

  The rotary bearing member 36 is a substantially columnar member, and is received in a cylindrical portion having a small diameter of the valve main body 30 so as to be rotatable about the first axis. The rotary bearing member 36 has an opening for receiving the operation rod 20a. Further, the rotary bearing member 36 is attached with a rotary shaft 36a oriented in the second axial direction perpendicular to the axis of the valve body 30 as the first axis. The operating rod 20a penetrates the rotary bearing member 36 and is attached so as to be rotatable about the rotary shaft 36a. Thereby, the operation rod 20a is attached so that rotation around the first axis and rotation around the rotation shaft 36a oriented in the second axis direction are possible.

  The fixed disk 32 is a substantially disk-shaped member in which a water inlet 32 a and a hot water inlet 32 b (FIG. 6B) are formed, and is fixed to the valve body 30. The water inlet 32a and the hot water inlet 32b are configured to be aligned with the two water outlet openings 18d (not shown) and the hot water outlet opening 18e provided in the faucet body 18, respectively. The water and hot water flowed into the hot water mixing valve unit 20 through the water inlet 32a and the hot water inlet 32b.

  The movable disk 34 is a substantially disk-shaped member, and a rod receiving recess 34a is formed on the front side, and a water passage recess 34b is formed on the back side. The rod receiving recess 34a receives the distal end of the operation rod 20a, and the movable disk 34 moves up and down with respect to the fixed disk 32 by rotating the operation rod 20a about the rotation shaft 36a. It is configured to be. Further, when the operation rod 20 a is rotated around the axis of the hot and cold water mixing valve unit 20, the movable disk 34 engaged therewith is also rotated with respect to the fixed disk 32.

  Further, the water passage recess 34b on the lower surface of the movable disk 34 is configured to appropriately open and close the water inlet 32a and the hot water inlet 32b of the fixed disk 32 when the movable disk 34 is moved with respect to the fixed disk 32. Has been. That is, as shown in FIG. 2, when the movable disk 34 is moved to the uppermost position, the water inlet 32a and the hot water inlet 32b are completely closed by the movable disk 34 to be in a water stop state. From this state, when the operation rod 20a is rotated about the rotation shaft 36a and the movable disk 34 is moved downward, the water inlet 32a, the hot water inlet 32b of the fixed disk 32, and the water flow recess 34b of the movable disk 34 are moved. Will overlap. In this state, the water and hot water that have flowed in through the water inlet 32 a and the hot water inlet 32 b flow into the water passage recess 34 b and are mixed, and further from the outlet 30 a formed on the side surface of the valve body 30. Outflow and water discharge. Furthermore, in the state where the movable disk 34 is moved to the lowest position in FIG. 2, the water inlet 32a and the hot water inlet 32b are in the most open state, and the discharged water flow rate is also maximized.

  On the other hand, when the operating rod 20a is rotated about the first axis and the movable disk 34 is rotated, the opening degree of the water inlet 32a and the hot water inlet 32b changes. That is, when the operation lever 14 is rotated to the left in FIG. 1, the opening degree of the hot water inlet 32b is increased and the opening degree of the water inlet 32a is reduced. Thereby, since the inflow amount of water decreases and the inflow amount of hot water increases, the temperature of the hot water discharged becomes high. On the contrary, when the operation lever 14 is rotated in the right direction in FIG. 1, the inflow amount of water is increased and the inflow amount of hot water is decreased, so that the temperature of the discharged hot water is lowered.

  On the other hand, the valve pressing member 22 is a substantially cylindrical member, and a male screw 22a (FIG. 3) is formed on the outer periphery thereof. The male screw 22a is configured to be screwed into a female screw 18f (FIG. 2) formed on the inner wall surface of the valve unit receiving portion 18a. By screwing the male screw 22a and the female screw 18f, the stepped portion of the valve body 30 is pressed by the valve pressing member 22, and the hot and cold water mixing valve unit 20 is sandwiched and fixed between the faucet main body portion 18 and the valve pressing member 22. Is configured to do. Further, a raised portion 22b whose outer periphery is formed in a hexagonal shape is formed on the front side of the valve holding member 22, and the valve holding member 22 is rotated by engaging a tool (not shown) with the raised portion 22b. And can be screwed into the faucet body 18. Also, six female screw holes 22c for screwing the spacer ring 26 are formed in the vicinity of each hexagonal apex of the raised portion 22b.

  The slip ring 24 (FIG. 3) is a resin annular member disposed around the raised portion 22 b of the valve pressing member 22. The slip ring 24 is configured to abut against the skirt portion 14c when the operation lever 14 is operated, and to reduce friction between the valve pressing member 22 and the operation lever 14.

  As shown in FIGS. 2 to 4, the spacer ring 26, which is a water stop regulating member, is a metallic annular member and surrounds the front end portion of the valve main body 30 protruding forward from the valve pressing member 22. Is arranged. As shown in FIG. 4, five engagement protrusions 26 a that protrude radially inward are formed on the inner periphery of the spacer ring 26. The engagement protrusion 26a engages with a spline 30b formed on a part of the outer periphery of the front end portion of the valve body 30, so that the rotational position of the spacer ring 26 with respect to the hot / cold water mixing valve unit 20 is positioned at a predetermined position. Is done. Therefore, the spline 30b and the engagement protrusion 26a of the valve body 30 constitute a positioning means.

  In addition, a portion of the spacer ring 26 opposite to the engagement protrusion 26a is formed to have a wide width so as to project inward in the radial direction, and a long hole 26b extending in an arc shape is formed along the wide portion. Is formed. The spacer ring 26 is fixed to the valve pressing member 22 by screwing two screws 26c (FIG. 3) into the female screw holes 22c of the valve pressing member 22 through the long holes 26b. Since the long hole 26b extends in an arc shape with a central angle of about 100 °, the long hole 26b is formed as a result of tightening the hot and cold water mixing valve unit 20 regardless of the rotational position of the valve pressing member 22. Align with at least two of the six female screw holes 22c. For this reason, the spacer ring 26 can always be fixed to the valve pressing member 22 with the two screws 26c.

  Further, as shown in FIG. 4 (a), the wide portion on the front side of the spacer ring 26 is formed with a generally fan-shaped raised portion, and the surface of this raised portion constitutes a contact receiving surface 26d. Yes. In the present embodiment, the contact receiving surface 26d is configured as a plane oriented in a direction orthogonal to the first axis. Further, as will be described later, the contact receiving surface 26d abuts a part of the operation lever 14 when the operation lever 14 is rotated to a higher temperature side than the predetermined first high temperature position, so It is comprised so that the unit 20 may be prevented from going into a water stop state. Here, since the back side of the wide portion of the spacer ring 26 is supported by being in contact with the front end surface of the valve body 30, when the contact receiving surface 26 d is pressed by a part of the operation lever 14, Is mainly subjected to compressive stress. For this reason, even when a large force is applied to the contact receiving surface 26d, the spacer ring 26 has a structure that is not easily deformed or damaged.

  Further, as shown in FIG. 4B, a high temperature regulating protrusion 26e, which is a high temperature regulating means, is formed on the back side of the wide portion of the spacer ring 26 so as to protrude to the back side of the hot and cold water mixing faucet 2. ing. The high temperature regulating projection 26e is inserted between the valve body 30 and the rotary bearing member 36 when the spacer ring 26 is assembled to the hot / cold water mixing valve unit 20 (illustrated by an imaginary line in FIG. 6A). As a result, when the operation lever 14 is rotated to the second high temperature position, which is higher than the first high temperature position, the high temperature regulating protrusion 26e and the engagement end 36b of the rotary bearing member 36 are engaged, and the operation lever 14 is 2. It is comprised so that rotation to the high temperature side rather than a high temperature position may be prevented.

  As shown in FIG. 5, the operation lever 14 includes a gripping portion 14a that is gripped and operated by a user, and a base end portion 14b that is formed at the base end of the gripping portion 14a. The gripping portion 14a is formed in an elongated thin plate shape that is gently bent. Moreover, the base end part 14b is a substantially circular part formed in the base end of the holding part 14a, and the skirt part 14c extended toward the hot-water mixing valve unit 20 side is formed in the circumference | surroundings.

  Further, as shown in FIG. 5B, an operation rod receiving bore 14d for receiving the operation rod 20a of the hot and cold mixing valve unit 20 is formed on the back side of the base end portion 14b. The operation rod receiving bore 14d is a concave portion having a substantially square cross section formed so as to receive the operation rod 20a having a substantially square cross section without a gap. In a state where the operation rod 20a is received by the operation rod receiving bore 14d, the operation lever 14 is fixed to the operation rod 20a by tightening the screw 20b screwed to the tip of the operation rod 20a (FIG. 2). .

  Further, the surface on the back side of the base end portion 14b on which the operation rod receiving bore 14d is formed is formed so as to protrude in a range of about 90 ° from the center angle. It is composed. The contact protrusion 14e is aligned with the contact receiving surface 26d of the spacer ring 26 when the operation lever 14 is moved to a higher temperature side than the first high temperature position, and the operation lever 14 is rotated to the water stop side. It is positioned to prevent this. In the present embodiment, the surface of the contact protrusion 14e is formed in a flat shape, and is formed so as to be parallel to the contact receiving surface 26d when contacting the contact receiving surface 26d. Thereby, the contact area of the contact protrusion 14e and the contact receiving surface 26d is enlarged, and damage to the contact protrusion 14e or the contact receiving surface 26d can be prevented.

  As shown in FIGS. 2 and 3, the cover ring 28 is disposed outside the base end portion 14b of the operation lever 14, and a gap between the inner wall surface of the valve unit receiving portion 18a and the outer periphery of the base end portion 14b. It is comprised so that it may cover. The cover ring 28 is engraved with indexes “H” and “C”, and indicates the high temperature side and the low temperature side in the direction in which the operation lever 14 is operated. An O-ring 28a is disposed on the outer periphery of the cover ring 28. The cover ring 28 is fitted with the inner wall surface of the valve unit receiving portion 18a while compressing the O-ring 28a. 18 is fixed.

  Next, with reference to FIG. 7 thru | or FIG. 10, the effect | action of the water discharging apparatus 1 by embodiment of this invention is demonstrated. FIG. 7 is a partially cutaway perspective view showing the hot and cold water mixing faucet 2 in a water stop state. Further, FIG. 8 is a partially broken view of the hot water / water mixing faucet 2 in the water discharge state, and FIG. 9 is a partially broken view of the hot water / water mixing faucet 2 in the water discharge state set to a higher temperature side than the first high temperature position. It is a perspective view shown. Further, FIG. 10 shows a state in which the rotation of the operation lever 14 to the water stop state is prevented when the water discharge flow rate of the hot and cold water mixing faucet 2 set to the high temperature side from the first high temperature position is reduced. FIG.

  First, in the water stop state shown in FIG. 7, since the movable disk 32 closes the water inlet 32 a and the hot water inlet 32 b provided on the fixed disk 34, the water is supplied through the water supply pipe 10 and the hot water supply pipe 12. Water and hot water do not flow into the hot / cold water mixing valve unit 20 and are in a water-stopped state. Next, as shown in FIG. 8, when the operation lever 14 (operation rod 20a) is rotated upward about the rotation shaft 36a, the movable disk 32 is moved downward in FIG. 2, and the water inlet 32a and hot water are moved. The inflow port 32b opens and enters a water discharge state.

  As shown in FIG. 8, when the operation lever 14 is directed vertically downward, the opening degree of the water inlet 32a and the hot water inlet 32b are substantially equal, and the same amount of water and hot water is the hot and cold water mixing valve unit. 20 flows in. The water and hot water that have flowed into the hot water / mixing valve unit 20 are mixed and flowed out from the outlet 30a on the side of the valve body 30. The hot water flowing out from the outlet 30a rises through the guide pipe 18b and flows into the switching valve 4. The hot water flowing into the switching valve 4 is discharged from the overhead shower shower head 6 or the hand shower shower head 8 according to the setting of the switching lever 16.

  On the other hand, when the operation lever 14 is rotated rightward or leftward about the axis of the hot and cold water mixing valve unit 20, the operation rod 20a is also rotated about the axis. Thereby, the mixing ratio of hot water and water flowing into the hot / cold water mixing valve unit 20 changes, and the temperature of the hot water discharged is adjusted. For example, as shown in FIG. 9, when the operation lever 14 is rotated to the high temperature side (left side), the opening degree of the water inlet 32a is reduced and the opening degree of the hot water inlet 32b is increased. The temperature of hot water discharged from the head rises.

  Further, when the operation lever 14 is rotated to the high temperature side beyond a predetermined first high temperature position, the contact receiving surface 26d (FIG. 4A) of the spacer ring 26 and the base end portion 14b of the operation lever 14 are obtained. The contact protrusion 14e on the back side (FIG. 5B) is aligned (FIG. 9). Therefore, when the operation lever 14 is on the higher temperature side than the first high temperature position, in order to stop the water in that state, if the operation lever 14 is rotated about the rotation shaft 36a, the contact receiving surface 26d is contacted. The contact protrusion 14e interferes (FIG. 10). For this reason, the rotation of the operation lever 14 to the water stop position is prevented. That is, in the state where the operation lever 14 is moved to the high temperature side above the first high temperature position, it is possible to prevent the hot and cold water mixing faucet 2 from entering the water stop state. Thereby, it can prevent that hot hot water is discharged unexpectedly when water discharge is started next by making the water stop state with the operation lever 14 moved to the high temperature side. In the present embodiment, the first high temperature position is set to a position at which the operation lever 14 is directed substantially downward in the vertical direction so that hot water of about 40 ° C. is discharged.

  After the hot water is discharged on the high temperature side from the first high temperature position, the operation lever 14 is temporarily moved to the low temperature side (right side in FIG. 9) from the first high temperature position in order to put the hot and cold water mixing faucet 2 in the water stop state. Then, the operation lever 14 is turned downward about the rotation shaft 36a to make the water stop state.

  Further, from the state shown in FIG. 9, when the operation lever 14 is rotated further to the high temperature side beyond the first high temperature position and reaches the predetermined second high temperature position, the high temperature regulating protrusion 26e (see FIG. b)) and the engagement end 36b of the rotary bearing member 36 are engaged, and the operation lever 14 cannot be rotated to the higher temperature side than the second high temperature position. That is, in the water stop state, the operation lever 14 is prevented from rotating to the higher temperature side than the first high temperature position, while in the water discharge state, the rotation to the higher temperature side than the first high temperature position is allowed. However, the rotation to the higher temperature side than the second higher temperature position where the temperature is higher is prevented. As a result, hot water that is inappropriate for shower water discharge is prevented from being discharged from the shower head. In the present embodiment, the second high temperature position is set to a position where hot water of about 50 to 55 ° C. is discharged and the operation lever 14 is rotated about 27.5 ° to the left (high temperature side) from vertically below. Has been.

  According to the water discharging device of the embodiment of the present invention, the rotation of the operation rod to the water stop state in a high temperature state is prevented by the contact between the contact protrusion of the operation lever and the contact receiving surface of the spacer ring. At this time, since the compressive stress mainly acts on the contact protrusion and the contact receiving surface, it is possible to prevent damage to the contact protrusion and the contact receiving surface even when the operation lever is operated with a large force. it can. Further, since the contact protrusion is provided not on the intermediate portion of the operation rod but on the surface on which the operation rod receiving bore of the operation lever is formed, the mechanism for preventing water stoppage in a high temperature state is configured to be small. be able to.

  Further, according to the water discharging device of the present embodiment, since the spacer ring is screwed to the valve pressing member, the spacer ring can be moved from the predetermined position even in the configuration in which the contact receiving surface is oriented in the vertical direction. It can be prevented from coming off.

  Furthermore, according to the water discharging device of the present embodiment, the spacer ring is screwed to the valve pressing member through the elongated hole extending in an arc shape, so that regardless of the rotational position of the valve pressing member screwed into the faucet body. The spacer ring can be fixed at a predetermined rotational position with respect to the hot and cold water mixing valve unit.

  Further, according to the water discharging device of the present embodiment, the operation lever in the water stop state is prevented from rotating to the high temperature side from the first high temperature position, and the temperature is further increased regardless of the water discharge state or the water stop state. The operation lever is prevented from rotating to a higher temperature side than the second high temperature position. This prevents water stoppage at a water discharge temperature setting that causes a problem if water is discharged unexpectedly, and prevents discharge of hot water that is higher in temperature and inappropriate to be discharged.

It is a perspective view which shows the whole water discharging apparatus by embodiment of this invention. It is the expanded sectional view which expanded and showed the part in which the hot-and-water mixing faucet was integrated of the water discharging apparatus shown in FIG. It is a disassembled perspective view of the hot and cold water mixing faucet incorporated in the water discharging apparatus by embodiment of this invention. It is (a) front view and (b) rear view of a spacer ring. It is (a) front view and (b) rear view of an operation lever. It is (a) front view and (b) rear view of a hot-water mixing valve unit. It is a perspective view which shows a partially cutaway hot-water mixing faucet in a still water state. It is a perspective view which shows a partially broken water tap in the water discharge state. It is a perspective view which shows a state where the hot-water / water mixing faucet in the water discharge state is partially broken and shows a state where it is set to a higher temperature side than the first high temperature position. The perspective view which shows a partially broken state that the rotation of the operation lever to the water stop state is prevented when the water discharge flow rate of the hot and cold water mixing faucet set to the high temperature side from the first high temperature position is reduced. It is. It is sectional drawing of the conventional single lever type mixing faucet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water discharging apparatus 1a Water discharging apparatus main body 2 Hot water mixing faucet 4 Switch valve 4a Cylinder 4b Opening 6 Shower head 8 Shower head 10 Water supply pipe 12 Hot water supply pipe 14 Operation lever 14a Gripping part 14b Base end part 14c Skirt part 14d Operation rod receiving bore 14e Contact projection 16 Switching lever 18 Water faucet body 18a Valve unit receiving portion 18b Guide pipe 18c Leg 18d Water outflow opening 18e Hot water outflow opening 18f Female screw 20 Hot water mixing valve unit 20a Operation rod 20b 22 Valve holding member 22a Male screw 22b Raised portion 22c Female screw hole 24 Slip ring 26 Spacer ring (water stop regulating member)
26a engaging protrusion 26b long hole 26c screw 26d contact receiving surface 26e high temperature restricting protrusion (high temperature restricting means)
28 Covering 30 Valve body 30a Outlet 30b Spline 32 Fixed disk 32a Water inlet 32b Hot water inlet 34 Movable disk 34a Rod receiving recess 34b Water passing recess 36 Rotary bearing member 36a Rotating shaft 36b Engagement end 101 Conventional single lever type mixing Faucet 108 cartridge case 122 lever 123 collar 125 lever handle 129 ring 132 protrusion

Claims (5)

A hot water / water mixing faucet that changes the mixing ratio of supplied hot water and water by operating a single operating lever and adjusts the water discharge flow rate,
A valve body and an operation rod protruding from the valve body in the first axial direction; the temperature of the hot water flowing out is changed by rotating the operation rod about the first axis; A hot and cold water mixing valve unit in which the flow rate of hot water is changed by rotating around a second axis orthogonal to the first axis;
A faucet body for receiving this hot and cold water mixing valve unit;
An operating lever provided with a gripping portion to be gripped and operated by a user, and formed with an operating rod receiving bore for receiving the distal end side of the operating rod;
A contact protrusion provided on a part of the surface on which the operation rod receiving bore is formed;
The operation rod is disposed at the upper part of the valve body, and the operation rod is rotated about the first axis to the higher temperature side than the predetermined first high temperature position, and the operation rod is moved to the second axis. A water stop having a contact receiving surface that is in contact with the contact protrusion and prevents the operation rod from rotating to a water stop state when rotated in the direction of decreasing the water discharge flow rate at the center. A regulating member;
A hot and cold water mixing faucet characterized by comprising:   Furthermore, it has a valve pressing member for fastening the hot and cold water mixing valve unit by screwing it to the faucet main body part and fixing it to the faucet main body part. The hot and cold water mixing faucet according to claim 1, which is fixed to the pressing member.   Furthermore, it has positioning means for positioning the rotational position between the hot water / water mixing valve unit and the water stop restricting member, and the water stop restricting member has a length extending in an arc shape centering on the first axis. The hot and cold water mixing faucet according to claim 2, wherein a hole is formed, and the screw is screwed into a female screw hole formed in the valve pressing member through the elongated hole.   Furthermore, regardless of the water discharge state or the water stop state, the operation rod has a high temperature regulating means for preventing the operation rod from being rotated further to the high temperature side than the second high temperature position on the higher temperature side than the first high temperature position. The hot and cold water mixing faucet according to any one of claims 1 to 3. A water discharge device body;
The hot and cold water mixing faucet according to any one of claims 1 to 4, attached to the water discharge device main body,
A shower head for discharging hot water mixed by the hot water and water faucet;
A water discharge device characterized by comprising:

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