JP2010281452A - Combination faucet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combination faucet capable of preventing wasteful use of hot water, by discharging only water in a state where an operation lever exists in a front position. <P>SOLUTION: A substantially ring-shaped fixing member 19 for fixing a hot-cold water mixing valve unit is installed in a faucet body part 14 under the operation lever, and a rotary member 18 rotating by interlocking with rotary operation of the operation lever, is incorporated into the fixing member 19. A substantially ring-shaped locking member 21 is arranged between the rotary member 18 and the fixing member 19 in a state of being locked on the fixing member 19. A substantially V-shaped plate spring 20 is installed on the outer periphery of the rotary member 18, and a recessed part 21a in and from which a projection part of the plate spring 20 can be fitted and separated, is formed in the front position on the inner periphery of the locking member 21. When the operation lever exists in the front position, the projection part of the plate spring 20 is fitted in the recessed part 21a. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a single lever type hot and cold water mixing faucet.

In the single lever type hot and cold water mixing faucet, the water discharge is stopped and the amount of water discharged is generally adjusted by turning the operation lever up and down, and the temperature of hot water discharged is adjusted by turning the left and right. In such a single lever type hot and cold water mixing faucet, hot water is discharged in a mixed state when the operating lever is unconsciously turned up and down when the operating lever is in the front position.
For this reason, even when the user needs only water, the hot / cold water is discharged, resulting in wasteful use of hot water and waste of hot water supply energy.

Therefore, in order to prevent such waste of hot water, a hot and cold water mixing faucet provided with a mechanism for discharging only water when the operation lever is located in front has been proposed (for example,
See Patent Documents 1, 2, and 3. ).

In the hot and cold water mixing faucet described in Patent Document 1, the position of the disk valve is arranged in a state rotated by a predetermined angle from the conventional one, and when the operation lever at the front position is discharged,
Only the water inlet of the disc valve is opened and water is discharged. The water supply to the faucet body, water supply to the faucet body, water supply to the water faucet body, water supply to the faucet body, and the hot water supply passage are the same as before. Although the positions are rotated by a predetermined angle, water supply and hot water supply to these positions are performed by bent water supply pipes and hot water supply pipes.

Similarly, in the hot and cold water mixing faucet described in Patent Document 2, when the disc valve is disposed in a state rotated by a predetermined angle from the conventional one, and the operation lever is spouted at the front position, only the water inlet of the disc valve is opened. It is opened and water is discharged. Water supply and hot water supply to the water inlet and hot water inlet of the disk valve are performed by interposing a socket having a bent water passage under the disk valve.

The hot and cold water mixing faucet described in Patent Document 3 has a structure in which the hot water inlet of the disk valve is made smaller and the water inlet is enlarged toward the hot water inlet, and when the operation lever is discharged at the front position,
Only the water inlet of the disc valve is opened and water is discharged.

No. 6-7089 JP 2003-129535 A Japanese Patent No. 3200540

The hot and cold water mixing faucet described in Patent Document 1 is located at a position where the water supply port to the faucet body and the hot water supply port are rotated by a predetermined angle from the conventional one, so the water supply pipe and the hot water supply pipe must be bent and aligned. Rather, the assembly is complicated. Also, in the case of a pull-out type hot / cold water faucet, the shape of the water supply pipe and the hot water supply pipe is complicated and the position is different from the conventional one. There is also the possibility of interference.

In the case of the hot and cold water mixing faucet described in Patent Document 2, it is necessary to interpose a dedicated socket below the disk valve, so that the height of the hot water and water mixing water faucet increases accordingly, and the design is poor.
Further, not only a dedicated socket is required, but also an operation for attaching it to the hot and cold water mixing faucet is required, resulting in an increase in the number of parts and an increase in assembly man-hours.

In the hot and cold water mixing faucet described in Patent Document 3, the water inlet of the disk valve is enlarged and the hot water inlet is reduced so that the operation range of the operation lever in the left-right direction is not different from the conventional one. Therefore, the temperature control range for hot and cold water is narrow, making it unusable.

The problem to be solved by the present invention is to provide a hot and cold water mixing faucet that can discharge only water while the operation lever is in the front position and can prevent wasteful use of hot water.

The hot and cold water mixing faucet of the present invention is a hot and cold water mixing faucet that performs water discharge stoppage and water discharge adjustment by operating the operation lever up and down, and temperature adjustment of water discharge by left and right rotation operation.
Hot water supplied with hot water supplied, hot water valve inlet through which water flows in, water valve inlet, operation rod operated by operation of the operation lever, and hot water valve outlet through which the mixed hot water flows out A valve unit;
A hot water / mixing valve unit housing recess formed for housing the hot / cold water mixing valve unit in the upper part, a valve side hot water supply channel for supplying hot water and water to the hot water valve inlet and the water valve inlet, and a valve, respectively Side water supply path, the valve side water supply path, the valve side water supply path for supplying hot water and water respectively to the valve side water supply path, the hot water pipe side water supply path formed in communication with the valve side water supply path, A faucet body having a water supply pipe side water supply channel,
A water discharge portion having a water discharge portion water passage into which hot water flowing out from the hot water valve outlet flows and a water discharge portion from which the hot water flowing into the water discharge portion water passage is discharged,
Of the operation range of the operation lever, resistance means for suppressing the rotation of the operation lever is disposed at a limit position of a water discharge operation range for discharging only water from the water outlet.

With this configuration, when the operation lever is in the front position, the valve-side water supply channel of the faucet body and the water valve inlet of the hot water mixing valve unit are located on the front side of the faucet body. When the operation lever is discharged in the state, it is possible to discharge only water, thereby preventing wasteful use of hot water. Furthermore, since the resistance means is arranged at the limit position of the water discharge operation range, the user can be surely recognized that the operation lever is within the water discharge range and has exceeded the water discharge range. Thus, wasteful use of hot water due to erroneous operation can be prevented.

  Here, the operation is performed when the operation lever is positioned on a straight line extending in the vertical direction from the center position of a line segment connecting the central axis of the water supply pipe side water supply path and the central axis of the hot water supply pipe side hot water supply path. If the resistance means is disposed so as to suppress the rotation of the lever, the user can be surely recognized that the operation lever is in the water discharge position, and wasteful use of hot water due to an erroneous operation can be further increased. Can be prevented.

According to the present invention, it is possible to provide a hot and cold water mixing faucet that can discharge only water while the operation lever is in the front position and can prevent wasteful use of hot water.

It is a perspective view which shows the hot / cold water mixing faucet which is embodiment of this invention. It is a disassembled perspective view of the hot and cold water mixing faucet shown in FIG. FIG. 3 is an exploded perspective view of the hot and cold water mixing valve unit shown in FIG. 2. FIG. 3 is an exploded perspective view of the hot and cold water mixing valve unit shown in FIG. 2. It is a top view of a faucet main-body part. It is a bottom view of a faucet body part. It is the sectional view on the AA line in FIG. It is plane explanatory drawing which shows the operation state of an operation lever. FIG. 2 is a partially exploded plan view of the hot and cold water mixing faucet shown in FIG. 1. It is a top view which shows the operation state of the hot-water / water mixing faucet shown in FIG. It is a partially exploded plan view which shows the hot and cold water mixing faucet which is other embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view showing a hot and cold water mixing faucet according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the hot and cold water mixing faucet shown in FIG. 1, and FIGS. 3 and 4 are hot water and water mixing valve units shown in FIG. FIG. 5 is a plan view of the faucet body, FIG. 6 is a bottom view of the faucet body, FIG. 7 is a cross-sectional view taken along the line AA in FIG. 5, and FIG. FIG. 9 is a partially exploded plan view of the hot and cold water mixing faucet shown in FIG. 1, and FIG. 10 is a plan view showing the operating state of the hot and cold water mixing faucet shown in FIG.

As shown in FIGS. 1 to 7, the hot and cold water mixing faucet 10 of the present embodiment performs water discharge stoppage and water discharge amount adjustment by operating the operation lever 11 up and down, and water discharge by operating left and right. Adjust the temperature. The hot and cold water mixing valve unit 12 causes the hot water valve inlet 12h and the water valve inlet 12c into which hot water and water to be supplied respectively flow in, the operation rod 13 interlocked with the operation of the operation lever 11, and the mixed hot water to flow out. And a hot water valve outlet 12m.

The valve-side hot water supply passage 15h and the valve-side water supply passage 15c provided in the faucet body 14 for allowing hot water and water to flow into the hot water valve inlet 12h and the water valve inlet 12c, respectively, ensure a sufficient water flow area. For this reason, in order to ensure water tightness at the contact surface 14s with the hot and cold water mixing valve unit 12, each is formed in a direction perpendicular to the contact surface 14s. Further, the faucet body 14 is provided with a mixing water channel 14m through which hot water flowing out from the hot water valve outlet 12m flows, and a hot water mixing valve unit housing recess 14a for housing the hot water mixing valve unit 12 at the upper part thereof. Is formed. Hot water valve inlet 12h and water valve inlet 1
2c is arrange | positioned inside the valve seat 5, and has comprised the circular arc shape.

Below the faucet body 14, a hot water supply pipe side hot water supply path 16h for supplying hot water to the valve side hot water supply path 15h and a water supply pipe side water supply path 16c for supplying water to the valve side water supply path 15c are provided. It is formed toward the stop cock. However, it is structurally difficult to cross the hot water supply pipe side hot water supply path 16h and the water supply pipe side water supply path 16c in the faucet main body portion 14, so that the hot water supply pipe side hot water supply path 16h, the water supply pipe side water supply path 16c is connected to valve side hot water supply path 15h and valve side water supply path 15c through joint water supply paths 17h and 17c, respectively. As shown in FIG. 3, a hot water supply pipe 26h and a water supply pipe 26c are connected to the lower end of the hot water supply pipe side hot water supply path 16h and the lower end of the water supply pipe side water supply path 16c, respectively. Furthermore, as shown in FIGS. 3 and 7, the faucet body 14 has a water discharge passage 14 b and a water discharge passage 14 b through which hot water flowing out from the hot water valve outlet 12 m through the mixed water passage 14 m flows. Outlet 1 from which hot water that has flowed into the outlet is discharged
A water discharger 14d having 4c is provided.

As shown in FIG. 5, the hot water supply port 15hm of the valve-side hot water supply passage 15h and the valve-side water supply passage 15
The water supply port 15 cm of c is arranged at a position eccentric from the rotation center C of the operation lever 11 (see FIG. 1), and the valve side water supply with respect to the contact surface 14 s between the hot and cold water mixing valve unit 12 and the faucet body 14. A passage 15c and a valve-side hot water supply passage 15h are formed in the vertical direction. In addition, FIG.
4, the combined water supply path 17c communicates with the valve side water supply path 15c in an eccentric state with the water supply pipe side water supply path 16c, and the combined water supply path 17h is connected to the valve side hot water supply path 15h with the hot water supply pipe side. The hot water supply passage 16h communicates in an eccentric state. A water supply port 15 cm of the valve-side water supply passage 15 c in the faucet body 14 and a water valve inlet 12 c of the hot-water mixing valve unit 12 are arranged on the front side of the faucet body 14. In addition, as shown in FIG. 6, the front side is the center position 1 of the line segment L which connects the water supply pipe side water supply path center axis 16cc and the hot water supply pipe side water supply path center axis 16hc.
This is on the straight line 16 chcc extending from 6 chc in the front vertical direction.

As shown in FIGS. 3 and 4, the hot and cold water mixing valve unit 12 includes a case 4, a valve seat 5 connected to the lower end thereof, and a first fixed valve plate as an uppermost layer that is sequentially assembled from the upper end side of the case 4. 6, a movable valve plate 7 as an intermediate layer, and a second fixed valve plate 8 as a lowermost layer are configured as main components. The case 4 is a hollow substantially cylindrical body, and the valve seat 5 has a hot water valve inlet 1.
2h, a water valve inlet 12c and a hot water valve outlet 12m are formed. Case 4
An operation rod 13 connected to the operation lever 11 (see FIG. 2) is incorporated at the upper end of the.
The operating rod 13 is disposed through the pedestal 9 fixed to the upper end of the case 4 in the vertical direction, and is rotatably held by a pair of pins 13 a protruding from both sides of the operating rod 13.

Next, based on FIG. 8, the operation method of the hot and cold water mixing faucet 10 will be described. FIG. 8A shows that the hot and cold water mixing faucet 10 is in a standby state (water stop state). The operation lever 11 is located on the front side. When the tip of the operation lever 11 is raised in this state, as shown in FIG. 8C, only the water valve inlet 12c is opened, and water is discharged from the water outlet 14c (see FIG. 1). Further, since the water valve inlet 12c has an arc shape, as shown in FIG. 8B, the tip of the operation lever 11 is raised with the operation lever 11 being shifted to the right (counterclockwise). In this case, only the water valve inlet 12c is fully opened, and water is discharged from the water outlet 14c. Even when the operation lever 11 is slightly shifted to the left (clockwise), only the water valve inlet 12c is fully opened, and water is discharged from the water outlet 14c. That is, the water discharge operation range of the operation lever 11 is set within a range rotated left and right by a predetermined angle (about 20 degrees) around the front position of the operation lever 11.

Next, as shown in FIG. 8D, when the water discharge operation is performed with the operation lever 11 turned to the left (clockwise), both the water valve inlet 12c and the hot water valve inlet 12h are opened. Hot and cold mixed water is discharged from the water outlet 14c. In this case, when the operation lever 11 is rotated clockwise, the temperature of the mixed water increases, and when it is rotated counterclockwise, the temperature of the mixed water decreases.
Further, as shown in FIG. 8E, when the water discharge operation is performed with the operation lever 11 turned to the left (clockwise) to the limit, the hot water valve inlet 12h is fully opened, so that hot water is discharged from the water outlet 14c. Is done.

As shown in FIGS. 1, 3, and 4, in the hot and cold water mixing faucet 10, when the operation lever 11 is in front, the valve side water supply passage 15 c of the faucet body 14 and the hot and cold water mixing valve unit 1 are used.
Two water valve inlets 12 c are located on the front side of the faucet body 14. Therefore, when a water discharge operation is performed on the operation lever 11 in this state, and when the operation lever 11 is discharged within a range in which the operation lever 11 is rotated left and right by a predetermined angle (about 20 degrees) around the front position, Spout 14
Since only water can be discharged from c, wasteful use of hot water can be prevented.

Further, the water supply pipe side water supply path 16c with respect to the valve side water supply path 15c and the valve side hot water supply path 15h,
By providing the joint water supply passages 17c and 17h communicating with the hot water supply pipe side hot water supply passage 16h in an eccentric state, the faucet main body portion 14 with respect to the contact surface 14s of the hot water mixing valve unit 12 and the faucet main body portion 14 is provided. The valve-side water supply passage 15c and the valve-side hot water supply passage 15h are each formed in a vertical direction. Thereby, the water tightness of the water valve inlet 12c and the hot water valve inlet 12h can be ensured.

On the other hand, as shown in FIGS. 2 and 9, a substantially ring-shaped fixing member 19 for fixing the hot and cold water mixing valve unit 12 and the like is attached to the faucet body 14 below the operation lever 11.
A turning member 18 that rotates in conjunction with the turning operation of the operation lever 11 is incorporated in the fixed member 19. A substantially ring-shaped locking member 21 is disposed between the rotating member 18 and the fixing member 19 in a state of being locked to the fixing member 19. A substantially V-shaped leaf spring 20 is attached to the outer periphery of the rotating member 18, and a recessed portion 21 a into which the protrusion of the leaf spring 20 can be fitted and removed is formed at the front position of the inner periphery of the locking member 21. ing. When the operation lever 11 is in the front position, the protrusion of the leaf spring 20 is fitted in the recess 21a.

Accordingly, when the operation lever 11 at the front position is rotated in the left-right direction, the recess 21
The leaf spring 20 fitted in a functions as a resistance means for suppressing it. For this reason, the user can be surely recognized that the operation lever 11 is in the water discharge position, and wasteful use of hot water due to an erroneous operation can be prevented. In addition, as shown in FIG.
When (see FIG. 1) is slightly shifted to the left (clockwise), the leaf spring 20 is detached from the recess 21a and slidably contacts the inner periphery of the locking member 21. Therefore, the rotation operation of the operation lever 11 is not hindered, and when the operation lever 11 is returned to the front position, the leaf spring 20 is recessed.
Since the click sound and the click feeling are generated by being inserted into 1a, the user can recognize that the operation lever 11 has correctly returned to the front position.

Next, another embodiment of the present invention will be described with reference to FIG. FIG. 11 is a partially exploded plan view showing a hot and cold water mixing faucet according to another embodiment.

In the present embodiment, a plurality of recesses 21xa and 21xb into which the protrusions of the leaf springs 20 can be fitted and removed are formed on the left and right positions across the front surface of the inner periphery of the locking member 21. Operation lever 1
When 1 is in the front position, the protrusion of the leaf spring 20 is detached from the recesses 21xa and 21xb and slidably contacts the inner periphery of the locking member 21. And the protrusion part of the leaf | plate spring 20 is the recessed part 21x.
When the water discharge operation of the operation lever 11 is in contact with the inner periphery of the locking member 21 between a and the recess 21xb, only water is discharged from the water discharge port 14c (see FIG. 1). Is set.

When the movement position of the protrusion of the leaf spring 20 due to the rotation of the operation lever 11 reaches the recess 21xa or the recess 21xb, the leaf spring 20 is fitted into the recess 21xa or the recess 21xb, and a click sound and a click feeling are generated. For this reason, the user can recognize that the operation lever 11 has reached the limit of the water discharge range. With this configuration, the user can be surely recognized that the operation lever 11 is within the water discharge range and has exceeded the water discharge range. Can be prevented.

4 Case 5 Valve Seat 6 First Fixed Valve Plate 7 Movable Valve Plate 8 Second Fixed Valve Plate 9 Base 10 Hot Water Mixing Valve 11 Operation Lever 12 Hot Water Mixing Valve Unit 12c Water Valve Inlet 12h Hot Water Valve Inlet 12m Hot Water Valve Flow Outlet 13 Operation rod 13a Pin 14 Faucet body
14a Hot water mixing valve unit housing recess 14b Water discharge portion water passage 14c Water discharge port 14m Mixing water passage 14s Contact surface 15c Valve side water supply passage 15h Valve side hot water supply passage 15cm Water supply port 15hm Hot water supply port 16c Water supply pipe side water supply passage 16h Hot water supply side hot water supply passage 16cc water supply pipe side water supply path central axis 16hc hot water supply pipe side water supply path central axis 16chc center position 16chcc straight line 17c, 17h coupling water supply path 18 rotating member 19 fixing member 20 leaf spring 21 locking member 21a, 21xa, 21xb recess 26c water supply pipe 26h Hot water supply pipe C Center of rotation L Line segment

Claims (2)

A hot and cold water mixing faucet that adjusts water discharge and water discharge amount by turning the operation lever up and down, and adjusts water discharge temperature by turning left and right.
Hot water supply having hot water supplied, hot water valve inlet through which water flows in, water valve inlet, operation rod operated by operation of the operation lever, and hot water valve outlet through which mixed hot water flows out A valve unit;
A hot water / mixing valve unit storage recess formed to store the hot water / mixing valve unit in the upper part, a valve side hot water supply passage for supplying hot water and water to the hot water valve inlet and the water valve inlet, and a valve, respectively Side water supply path, the valve side water supply path, the valve side water supply path for supplying hot water and water respectively to the valve side water supply path, the hot water pipe side water supply path formed in communication with the valve side water supply path, A faucet body having a water supply pipe side water supply channel,
A water discharge portion having a water discharge portion water passage into which hot water flowing out from the hot water valve outlet flows and a water discharge portion from which the hot water flowing into the water discharge portion water passage is discharged,
Of the operation range of the operation lever, a resistance means for suppressing rotation of the operation lever is disposed at a limit position of a water discharge operation range for discharging only water from the water outlet, Hot water mixing valve unit.   When the operation lever is positioned on a straight line extending in the vertical direction from the center of a line segment connecting the central axis of the water supply pipe side water supply path and the central axis of the hot water supply pipe side hot water supply path, The hot and cold water mixing faucet according to claim 1, wherein the resistance means is disposed so as to suppress movement.

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