JP2827806B2 - Water faucet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a faucet, and more particularly to a faucet using a resin.

[0002]

2. Description of the Related Art Conventionally, as this type of faucet, there is a hot-water mixing faucet which mixes hot water and discharges water as well as being able to spout hot water or water alone. The hot water mixing faucet is provided with a hot water mixing mechanism for changing the hot water mixing temperature by adjusting the hot water mixing ratio and a switching mechanism for switching the hot water inside the casing. In addition to the hot water side passage and the water side passage from the hot water side and water side supply pipes to the hot water mixing mechanism, the mixed hot water passage from the hot water mixing mechanism to the water discharge port uses the inner peripheral surface of the casing. It is formed.

By the way, hot water mixing faucets can be changed in temperature of mixed hot and cold water so that they are rapidly spreading as a part of creating a comfortable environment around water. For example,
It is installed not only in kitchens and bathrooms of general households but also in bathrooms and department stores of hotels, toilets at airports and the like.

[0004] The shape of the hot and cold water mixing faucet is, of course,
In order to enhance the atmosphere of the various installation locations, it is required to have a sense of quality. In order to meet such a demand, a casing having the appearance of a hot and cold water mixing faucet has been molded. As described above, if the casing is formed into a mold, the engraving pattern or the like applied to the mold can be transferred to the outer surface of the casing, so that the above-mentioned requirements have been satisfied. Although engraving patterns and the like can be cut and formed on the outer surface of the casing by copying or NC machine tool, it is not realistic because it requires long-time machining and is expensive.

[0005] Further, by molding the casing into a mold, the requirements for strength against excessive water pressure generated at the time of occurrence of a water hammer and the requirements for durability against a sudden temperature change caused by cold water and hot water are sufficiently satisfied. ing.

[0006]

However, when the casing is molded, the following problems remain. As described above, the casing incorporates a hot water mixing mechanism and the like, and the inner peripheral surface of the casing is used as a hot water side passage, a water side passage, and a mixed hot water passage inside the faucet. Therefore, various machining processes are required inside the casing in order to secure the sealability, to incorporate the hot and cold water mixing mechanism and to form the passage. Specifically, since the sealing property cannot be ensured with the casting surface as it is, the incorporation of a hot water mixing mechanism or the like and the formation of a uniform passage cannot be performed, a hole for storing the hot water mixing mechanism or an O-ring inside the casing. It requires cutting, turning, polishing, etc., for grooves for placement.

[0007] Machining such as cutting, turning, and polishing of holes and grooves can be easily performed outside the casing. Therefore, special tools and complicated manufacturing processes are required because of the necessity of so-called deburring. That is, complicated machining had to be performed inside the casing.

In addition, the casing formed by the mold molding is heavier than it appears, and it is necessary to consider the weight in the transportation, handling, mounting work and the like. Furthermore, since the casting has a small heat capacity and lacks heat insulating properties, if a hot water flow path is provided inside the casing, the temperature of the casing surface is partially increased, and it may be difficult to use the casting. Therefore, there has been a demand for a design in which a mixing valve is installed at the inlet of the hot water so that the hot water flows in and is mixed with the water at the same time without providing a hot water flow path in the casing. Many of the above-mentioned problems have been pointed out even with a faucet that discharges only water or hot water.

The faucet of the present invention solves these problems,
The purpose of the present invention is to form the outer member of the main body of resin, and the following configuration is employed.

[0010]

In order to achieve the above object,
Means adopted in the first faucet of the present invention is a faucet for discharging supplied fluid from a spout, and has an internal part.
Material, and an external member located outside the internal member,
The inner member has a through passage for communicating the entering-<br/> port and outlet and having to pass through the outer peripheral wall and an outlet connected to the inlet and the water discharge port before Symbol fluid flows therein, the ejection From the mouth
Comprising a water faucet function in charge of the water discharge, the outer member is formed by tree butter, to form a gap between the outer peripheral wall surface of said inner member, e Bei a receiving space for accommodating the internal member, the The gist is that the gap communicates with the inlet and / or the outlet and serves as a flow path to the inlet and / or a flow path from the outlet. In addition, the second water of the present invention
The means adopted for the tap is to feed the supplied fluid to the spout.
A water faucet for discharging water from the inlet and the front through which the fluid flows.
An outlet connected to the spout and a passage connecting the inlet and the outlet
An internal member having:
A gap is formed between the outer peripheral wall of the member and the inner member.
An external member having a storage space for storing
Communicates with said inlet and / or said outlet,
Channel to the inlet and / or channel from the outlet
The inner member is provided on the outer peripheral wall surface of the outer member.
The gap is divided into two or more in combination with the inner peripheral wall of
The point is to have a convex part. These faucets of the present invention
Is water, hot water, mixed hot and cold water, soapy water, chemical water, mousse, al
Commonly used for fluids such as coal and saline
Including all faucets in condition. In addition, these water of the present invention
The outer member of the stopper is made of a single resin
Not limited, formed as two or more layers of different resins
Or a different tree on the outer or inner wall
It may have a coating layer made of fat.

[0011]

[0012]

[0013]

[0014]

[0015]

[0016]

[0017]

According to the first faucet of the present invention constructed as described above, an inlet and an outlet of a fluid penetrating the outer peripheral wall are formed.
An internal member having an internal passage communicating with
It is stored and held in a molded outer casing, and
The material functions as a faucet. Then, an external member by forming a resin, the weight of the entire faucet lightweight.
This facilitates handling such as transporting the faucet from the manufacturing location to the use location and installing the faucet.

Here, the resin used as the material of the external member is
Generally referred to as engineering plastics, these plastics are excellent in heat resistance, dust resistance, chemical resistance, flame resistance and the like. Numerically, the tensile strength is about 50MP
a, a plastic having an impact strength of about 50 J / m or more, and a heat deformation temperature of about 100 ° C. or more (Plastic Molding Dictionary). For example, polyamide (P
A), polycarbonate (PC), polyacetal (P
OM), modified polyphenylene ether (PPE), so-called general-purpose engineering plastics such as polyester, polyphenylene sulfide (PPS), polyarylate (PAR), polyetherimide (PEI), polysulfone (PSF), polyethersulfone (PE)
S), polyetherketone (PEK), polyetheretherketone (PEEK), polyimide (PI), polyamideimide (PAI), fluorine resin, liquid crystal plastic, thermosetting resin with excellent impact resistance and chemical resistance It is possible to use so-called super engineering plastics. Further, it is also possible to form a resin obtained by adding glass fibers to these resins, or a resin obtained by mixing two or three or more kinds.

The surface roughness of the inner peripheral surface of the outer member formed of resin is determined by the surface roughness of the mold at the time of injection molding. Therefore, it is also easy to smooth the surface of the inner peripheral surface of the formed external member by smoothing the surface of the mold. In addition, since it is easy to make only a part smooth, it is not necessary to perform secondary processing such as grinding and polishing on a part where a seal member such as an O-ring contacts . For this reason, it is formed between the outer member and the inner member.
Channel and / or outlet through the open gap to the inlet of the internal member
Grinding the inner peripheral surface of the external member
-No secondary processing such as polishing is required. And this external part
Since the material is made of resin,
Easy to shape, suitable for mass production and high yield
And contribute to the improvement of quality.

In addition, since the resin has a larger heat capacity and a heat insulating property than the metal material, the outer peripheral surface near the hot water flow path is prevented from becoming too hot. Therefore, a hot water flow path is provided in a gap formed by the external member and the internal member, and so-called hot water can be drawn. Also,
Dew condensation on the outer peripheral surface near the water flow path is also prevented.

In the first faucet of the present invention, the internal part
The material is combined on the outer peripheral wall with the inner peripheral wall of the external member.
Now, it is assumed that the projection has a projection that partitions the gap into two or more.
Can be In this way, it is installed on the outer peripheral wall of the internal member.
Formed by the external member and the internal member,
Can be divided into two or more gaps.
The gap is a passage for one kind of fluid or two or more kinds of fluids.

Further , the present invention constructed as described above
Two faucets communicate with the inlet and outlet of the fluid
An internal member having a passage and an external member formed of resin
Store and hold in casing. And the external member is made of resin
The weight of the entire faucet can be reduced by forming
You. This allows the faucet to be moved from the place of manufacture to the place of use.
Easy handling such as transportation and installation of faucets. More
The second faucet of the present invention is provided on the outer peripheral wall surface of the internal member.
Between the external member and the internal member
The gap can be divided into two or more.
One type of fluid or two or more types of fluid passages.

In the first and second faucets of the present invention described above,
The following configuration can be adopted. First
First, the fluid flowing through the passage of the internal member is controlled by the internal member.
It may be provided with a valve device to control. Like this
Then, the valve device performs various controls such as stopping and switching the flow of the fluid, mixing two or more types of fluids, adjusting the mixing ratio, and adjusting the flow velocity of the fluid flowing through the passage in the internal member.
be able to.

In this case, the valve device is fitted into the passage of the internal member.
A housing having a predetermined shape to be inserted into the housing;
A configuration that contains at least a part of the function to control fluid
It can also have. In this way, by accommodating the valve device in the housing in a predetermined shape, the assembly of the faucet to facilitate the even valve device in case a defect occurs in the valve device
Can be easily replaced. In addition, the assembly of the valve
This can be done separately from the assembly of the faucet, and the faucet is fitted with a valve.
The number of parts can be reduced even when mounting
You.

Further , the outer member is housed in a housing for housing the inner member.
The storage space shall have an insertion hole for inserting the internal member.
You can also. This way, to facilitate the insertion of the internal member during assembly faucet.

Further , the external member may be an internal part provided with a valve device.
An insertion hole for inserting the internal member into a storage space for storing materials
The insertion hole is provided with the valve device and the drive of the valve device.
It may be a communication port for communicating with the moving part. Like this
If the interpolation Nyuana, by also used as communication port of the operation of the valve device, to reduce the hole provided in the outer member, can you to maintain the strength of the outer member.

In addition, at least one of the external members has a gap.
Having a configuration with a through hole communicating with the
Can also. This way, a through hole provided in the outer section member as a passage, the fluid inlet or outlet of the other similar gap and the inner member from the gap formed by the outer member and the inner member, such as an inlet or outlet of the outer member Move to . This
As described above, a through hole is provided in the external member as a fluid passage.
In order to obtain the fluid passage, the shape of the inner peripheral wall of the outer member
Alternatively, the outer wall surface of the inner member must have a complicated shape.
No need. Also, since the outer member is formed of resin,
The through hole can be easily formed.

[0028]

Further , the outer member is attached to the inner peripheral wall by the inner member.
Convex part that separates the gap into two or more in combination with the outer peripheral wall of
May be provided. Like this
Lever, the protrusion provided on the inner peripheral wall surface of the external member, clearances formed by the outer member and the inner member is divided into two or more
Is, the partitioned gap of this the passage of fluid. And
Since the inner peripheral wall of the outer member has irregularities,
The used internal member can be used as it is.

Further , the external member is formed by joining two or more parts.
It can also be configured to have a configuration in which like this
If, allows the inner peripheral wall or outer peripheral wall surface of the external member integrally formed shape out easily morphism even if having a complex shape
You.

Further , the external member is provided in a storage space for the external member.
2 divided on a surface substantially perpendicular to the axis of
It shall have a configuration to form by joining the above parts
You can also. This way, that the inner peripheral wall surface of the external member integrally formed shape out easily morphism even if having a complex unevenness
it can. Further, by making the dividing plane and the inner peripheral wall surface of the recess of the outer member, pain Me by finely uneven causing sealing member usually has the engaging portion between the outer member and the inner member to the junction
And can provide sufficient sealing force
You.

Further , the external member is provided in a storage space for the external member.
2 divided on a plane substantially perpendicular to the axis of
It shall have a configuration to form by joining the above parts
You can also. In this way, the axis substantially perpendicular to the plane of the receiving space of the external member, by forming the outer member by joining two or more parts obtained by dividing, if the inner peripheral wall surface of the outer member has a complicated uneven also easily y de can be integrally formed form at
You. Further, with the convex portion of the inner peripheral wall surface of the divided surface external member, by increasing the junction area of the member, it is high <br/> to Rukoto bonding strength.

Further , the external member is provided in a storage space for the external member.
Of two or more parts divided by a plane substantially parallel to the axis of
It is also possible to have a configuration to make it. Like this
If, in the axial and substantially horizontal surface of the receiving space of the external member, by forming the outer member by joining two or more parts obtained by dividing, even if the inner peripheral wall surface of the outer member has a complicated uneven easily
It can be integrally formed shape out Cum. In addition, the external member
Since it is divided on a substantially horizontal surface, the joint area must be large.
And the bonding strength can be increased.

[0034]

[0035]

[0036]

[0037]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to further clarify the structure and operation of the present invention described above, a hot and cold mixing faucet as a preferred embodiment of the present invention will be described below.

FIG. 1 is a plan view of the hot and cold water mixing faucet of the embodiment. The hot and cold water mixing faucet includes a main body 10, a water supply leg fitting 20 connected to a water pipe (not shown), and a water supply leg fitting 40 connected to a pipe from a water heater (not shown).
The main body 10 houses main functional components in the outer casing 50, and has a temperature adjustment handle 80 and a switching handle 160 at both ends.

FIG. 2 is a view showing the structure of the water supply leg fitting 20.
FIG. 2 is a sectional view taken along line II of FIG. The water supply leg fitting 20 is a water stop valve 3
0, a connection fitting 24 connected to a water inlet 51 of an outer casing 50 described later,
A fastener 28 for connecting and fixing the connection fitting 24 and the housing 22 is provided. The connection fitting 24 is connected to the outlet 2 at one end.
At 9, it is fitted to the water inlet 51 of the outer casing 50,
At its tip, it communicates with a water flow path 55 formed in the outer casing 50 described later. The other end has a threaded portion, and is screwed into the threaded portion and the fastener 28 to be connected and fixed to the housing 22. At the other end of the housing 22,
An entrance 21 is formed, and a threaded portion is provided on the outer periphery of the entrance 21 so as to be screwed into a water pipe. In addition, connection fitting 2
A resin packing 26 is mounted between the housing 4 and the housing 22 and is sealed to be liquid-tight.

Water stop valve 30 incorporated in housing 22
Is a cap 34 liquid-tightly fastened to the housing 22.
, A valve body 32 guided by the cap 34 and the housing 22, and a strainer 38. The valve element 32 has a guide portion 35 with the housing 22 and an end portion 36. The guide portion 35 has an opening 3 that serves as a water passage when water flows.
7 are provided. The guide part 35 is connected to the housing 22.
And by rotating the valve body 32,
The valve element 32 is configured to slide in the axial direction. Therefore, by rotating the valve body 32 to attach and detach the end portion 36 and the valve seat 23 formed on the housing 22,
Stop or pass water. When passing water, the end 36 and the valve seat 23
The water that has flowed through the gap between the main body 10 passes through the opening 37, and after the dust is removed by the strainer 38, flows into the main body 10 through the outlet 29.

The hot water leg fitting 40 has the same configuration as the hot water leg fitting 20, is connected to a hot water supply pipe (not shown), and introduces hot water into a hot water flow path 134 (see FIG. 3) described later. The description of the configuration of the hot water supply leg fitting 40 is omitted.

FIG. 3 is a sectional view taken along line II-II of FIG. As shown in FIG.
0, a mixing valve cartridge 70 housed in the inner casing 60, a switching valve cartridge 150 also housed in the inner casing 60, a callan outlet 170, and a shower outlet 180.
And The outer casing 50 has a water inlet 51 connected to the water supply leg fitting 20 and a water supply leg fitting 4.
0, a hot water inlet 52 connected to zero, a curan outlet 170,
A shower outlet 180 is formed. Since the outer diameter of the inner casing 60 is smaller than the inner diameter of the outer casing 50 by several millimeters, a gap is formed between the two, and the gap is formed between the water flow path 55 and the curran outlet 170 of the mixed hot and cold water. Channel 176 and the shower outlet 18 of the mixed hot and cold water
It is used as a flow path 184 to zero.

Water flows into the water flow path 55 from the water inlet 51, and flows through a hole (not shown) formed in the inner casing 60 into the mixing valve cartridge 70. On the other hand, the hot water flowing from the hot water inlet 52 into the hot water flow path flows into the mixing valve cartridge 70 through a hole (not shown) formed in the inner casing 60. Then, hot and cold water is mixed in the mixing valve cartridge 70, and the mixed hot and cold water flows out from the curran outlet 170 or the shower outlet 180 via the switching valve cartridge 150. The structures of the mixing valve cartridge 70 and the switching valve cartridge 150 will be described later in detail.

The outer casing 50 is made of polyphenylene sulfide (PPS) which is a kind of engineering plastic. The PPS used for the outer casing 50 of the present embodiment is a plastic having particularly excellent heat resistance, hot water resistance, and pressure resistance. In this embodiment, the inner casing 60 is also formed of PPS. In this embodiment, the outer casing 50 and the like are made of PPS.
However, it is a matter of course that any plastic other than PPS can be used as long as the plastic has excellent performance. For example, polyimide (PI), polyamideimide (PAI), polyetheretherketone (P
EEK), polyethersulfone (PES), polysulfone (PSF), polyarylate (PAR), polyetherimide (PEI) and the like can also be used.

Next, the mixing valve cartridge 70 housed in the outer casing 50 will be described. The mixing valve cartridge 70 includes a temperature-sensitive spring chamber 90 and a bias spring chamber 10.
0 and a slide chamber 120. The mixing valve cartridge 70 has a hot water flow path 13 connected to the hot water inlet 52.
4, and a hot water side valve seat 136 having a hot water side port 138 which is a hot water passage from the hot water flow path 134 to the bias spring chamber 100 is formed. Similarly, a water flow path 144 is formed in the mixing valve cartridge 70, and a water-side valve seat 146 having a water-side port 148 that is a water path from the water flow path 144 to the temperature-sensitive spring chamber 90 is formed. ing. Further, the mixing valve cartridge 70 has a water flow path 144 on the outer periphery thereof.
1 is communicated through a hole formed in the inner casing 60. A water-side port 148, which is a water passage from the water flow path 144 to the temperature-sensitive spring chamber 90, has a movable valve body 110 described later.
There is formed a water-side valve seat 146 on which is seated.

A movable valve body 110 detachably mounted on the hot water side valve seat 136 and the water side valve seat 146 is slidably fitted between the hot water side valve seat 136 and the water side valve seat 146. The movable valve element 110 is provided with a temperature-sensitive spring 92 stored in a temperature-sensitive spring chamber 90.
Is received through the spring receiver 94 and the spring force of the bias spring 102 housed in the bias spring chamber 100, and the position is determined by the balance of these spring forces. The movable valve body 110 has a communication hole 111 that communicates the bias spring chamber 100 with the temperature-sensitive spring chamber 90.

Therefore, the hot water flowing into the hot water flow path 134 is supplied to the hot water port 13 between the movable valve body 110 and the hot water valve seat 136.
8, flows into the bias spring chamber 100, and then passes through the communication hole 111 and flows into the temperature-sensitive spring chamber 90. On the other hand, the water that has flowed into the water flow passage 144 passes through the water-side port 148 between the movable valve body 110 and the water-side valve seat 146 and flows into the temperature-sensitive spring chamber 90. Therefore, the temperature-sensitive spring chamber 9
Hot and cold water is mixed within 0, and the mixing ratio is determined by the ratio of the gap between the movable valve body 110 and the valve seats on both sides thereof. The hot and cold water mixed in the temperature-sensitive spring chamber 90 of the mixing valve cartridge 70 flows into the flow path 176 via the switching valve cartridge 150 described later, and is discharged from the curran outlet 170.

The temperature-sensitive spring 92 is formed of a metal whose elastic coefficient changes according to the temperature. As a metal material whose elastic modulus changes according to the temperature, an alloy belonging to the category of a shape memory alloy (SMA) made of a nickel-titanium alloy is known. As the SMA changes the elastic coefficient according to the temperature, the spring constant of the temperature-sensitive spring 92 changes according to the temperature. On the other hand, the bias spring 102 is formed of a normal spring material having a constant spring constant with respect to temperature.

The bias spring 10 is provided in the slide chamber 120.
A second spring receiver 122 is spline-fitted inside the mixing valve cartridge 70 so as to be axially displaceable and non-rotatable, and a worm 124 fixed to the temperature control handle 80 meshes with an inner screw of the spring receiver 122. ing. Therefore, when the temperature adjustment handle 80 is rotated, the worm 124 rotates, the spring receiver 122 slides in the axial direction, and the amount of bias of the bias spring 102 changes. As a result, the balance between the temperature sensing spring 92 and the bias spring 102 is broken, and the movable valve body 110 is displaced to a new balance position, and a new gap between the movable valve body 110 and the valve seats on both sides thereof is formed. And the temperature of the mixed hot water changes.

After the tapping temperature is set by adjusting the amount of bias of the bias spring 102 by the temperature adjusting handle 80, the tapping temperature is adjusted by the temperature-sensitive spring 92 and the bias spring 102 as described below.

After the start of tapping, the mixed hot water reaches the set temperature,
When conditions such as the temperature of hot water supplied from the water heater, the temperature of tap water, and the flow rate are in a steady state, the movable valve element 110 causes the spring force and bias of the temperature-sensitive spring 92 generated by the temperature of the mixed hot water in the temperature-sensitive spring chamber 90. The position is determined by the balance with the spring force of the spring 102, and it is stationary. From this state, when the conditions such as the hot water supply temperature from the water heater, the tap water temperature or the flow rate fluctuate due to disturbance, and the temperature of the mixed hot water becomes higher than the set temperature,
The temperature-sensitive spring 92 changes the spring constant to a larger side according to the temperature change, and increases the spring force. As a result, the balance between the spring force of the temperature-sensitive spring 92 and the spring force of the bias spring 102 is lost, and the temperature-sensitive spring 92
2, the movable valve body 110 is displaced to the left in FIG. In accordance with the displacement of the movable valve body 110, the proportion of hot water decreases, and the temperature of the mixed hot water decreases. Conversely, when the temperature of the mixed hot water becomes lower than the set temperature, the temperature-sensitive spring 92
Changes the spring constant to a smaller side in accordance with this temperature change, and reduces its spring force. As a result, the balance between the spring force of the temperature sensing spring 92 and the spring force of the bias spring 102 is broken, and the bias spring 102 moves the movable valve body 110 rightward in FIG. 3 against the urging force of the temperature sensing spring 92. Displace. According to the displacement of the movable valve body 110, the ratio of water decreases,
The temperature of the mixed hot water rises. The temperature of the mixed hot and cold water is maintained at the set temperature by the action of the temperature sensing spring 92.

The switching valve cartridge 150 housed in the inner casing 60 is provided with a switching valve 152 rotatably housed in a housing 153 for switching between water discharge and stoppage of mixed hot water and adjusting the water discharge amount. . In addition, an annular flow path 182 for flowing mixed hot water and water into the flow path 184 as well as an annular flow path 182 for flowing mixed hot water and water to the flow path 176 are provided on the outer periphery. When the switching valve cartridge 150 is housed in the inner casing 60 in a watertight manner, the flow path 172 and the flow path 176 communicate with each other through a hole 173 formed in the inner casing 60. Similarly, the flow path 182 and the flow path 184 communicate with each other via a hole 183 formed in the inner casing 60. The switching valve 152 is formed with an inflow chamber 154 through which hot and cold water mixed in the temperature-sensitive spring chamber 90 flows in from an end face of the switching valve 152. The switching valve 152 is provided with a valve body so as to cover the inflow chamber 154. 155 are attached. On the other hand, the housing 153 has a hot water passage hole 156 communicating the inflow chamber 154 and the flow path 172, a hot water passage hole 156, and the inflow chamber 154 and the flow path 182.
A hot and cold water passage hole 157 that communicates with the hole is drilled. The hot water passage holes 156 and 157 change their opening areas via the valve element 155 by the rotation of the switching valve 152. Further, the switching valve 152 is fixed to the switching handle 160, and by rotating the switching handle 160, the switching valve 152 rotates.

Therefore, by rotating the switching valve 152 via the switching handle 160 and opening the hot water passage hole 156 by the valve element 155 of the switching valve 152, the mixed hot and cold water having a water discharge amount corresponding to the opening area can be formed. A flow channel 172, a hole 173 in the inner casing 60, and a curan outlet 170 through a flow channel 176.
It is spouted from. In addition, the hot water passage hole 1 is provided by the valve element 155.
By opening the opening 57, the mixed hot and cold water having an amount of water discharge according to the opening area is supplied to the flow path 182 and the hole 18 of the inner casing 60.
3. Water is discharged from the shower outlet 180 via the flow path 184. Water is stopped by opening neither of the hot water passage holes 156 and 157 by the valve element 155. Therefore, the above-mentioned switching valve cartridge 150 allows the callan outlet 1
Spouting / stopping of mixed hot water from 70, shower outlet 180
The switching of the spouting / stopping of the mixed hot water and the adjustment of the spouting amount are performed.

According to the hot and cold water mixing faucet of the embodiment described above, since the outer casing 50 is formed of PPS having heat insulating properties, the outer peripheral surface of the outer casing 50 can be prevented from becoming hot. This makes it possible to switch the flow path of the water and the flow path of the hot water, that is, to make the water flow path 55 a hot water flow path in the present embodiment. Therefore, the positions of the mixing valve cartridge 70 and the switching valve cartridge 150 can be changed.

Since the outer casing 50 is formed of PPS having a specific gravity smaller than that of a metal material such as an alloy or a casting, the weight of the hot and cold mixing faucet is reduced, and the handling of the hot and cold mixing faucet and the installation work are easy. be able to. In addition, since the inner casing 60, the mixing valve cartridge 70, and the switching valve cartridge 150 can also be formed of PPS or the like, the weight can be further reduced in this case.

Since the outer casing 50 has a constant thickness and no irregularities, simple integral injection molding can be performed. In this case, since the inner peripheral surface can be smoothed, grinding and grinding of a portion where a sealing member such as an O-ring contacts can be performed.
There is no need to perform secondary processing such as polishing. In addition, the appearance can be improved without the occurrence of a depression (sink) at the time of formation which is observed when there is a difference in thickness. Further, since the gap between the outer casing 50 and the inner casing 60 is the water flow path 55, the diameter of the outer casing 50 can be reduced as compared with the case where a flow path having a circular cross section or a rectangular cross section is provided.

Further, the mixing valve cartridge 70 and the switching valve cartridge 150 can be standardized so that they can be used with other faucets. If the standardized mixing valve cartridge 70 and the switching valve cartridge 150 are used, the mixing valve cartridge 70 and the switching valve cartridge 150 can be easily used. Can be assembled.

In this embodiment, the SM is used for controlling the temperature of the mixed hot water.
Although a configuration using the temperature-sensitive spring 92 according to A is adopted, a configuration using a wax element may be used. Of course, a configuration in which temperature control is not performed by the temperature sensing element may be used. Further, in the present embodiment, the water is discharged by selecting the curan and the shower. However, the water may be discharged by only the curan or only the shower.

In this embodiment, the outer casing 50 has a substantially cylindrical shape, but a polygonal column or an elliptical column is also suitable. Further, although the thickness of the outer casing 50 is made constant, the thickness may not be constant as long as the inner surface is smooth without irregularities. Further, since the outer casing 50 only needs to be able to house the inner casing 60, both ends need not be open, and may have a shape that only one end is open.

Next, a second embodiment of the present invention will be described. The hot and cold water mixing faucet of the second embodiment is a hot and cold water mixing faucet having an uneven portion such as a water passage or a support of an internal member on an inner peripheral surface of a main body thereof. FIG. 4 shows a hot water mixing faucet 20 of the second embodiment.
0 is a sectional view. The hot and cold water mixing faucet 200 includes a housing 210 for accommodating each functional member, and a temperature adjustment handle 270 attached to an end of the housing 210.

The housing 210 includes a movable valve body 220 that can be displaced in the axial direction of the housing 210 and a temperature-sensitive element 25 that expands and contracts in the axial direction of the housing 210 according to temperature.
0, a water inlet 211 connected to a water supply leg fitting (not shown), and a hot water inlet 212 connected to a hot water supply leg fitting (not shown). And the mixed hot and cold outlet 21
9 are formed.

The housing 210 is made of PPS, and is formed by two members having a surface parallel to an axis along the longitudinal direction of the housing 210 as an adhesive surface. The bonding surface may be any surface as long as it is parallel to the axis along the longitudinal direction of the housing 210. However, if the water inlet 211, the hot water inlet 212 and the mixed hot water outlet 219 are used as bonding surfaces, the strength of the opening may be reduced. In addition, it is preferable that a surface having no opening is used as the bonding surface because the bonding area cannot be increased. Further, since ultrasonic welding is desirable for bonding the PPS, in the present embodiment, bonding was performed by ultrasonic welding. There are methods of bonding, such as bonding with an adhesive, thermal bonding, and ultrasonic welding. The bonding method is determined by the material used for the housing 210 and the bonding strength. In the case of bonding with an adhesive, it is also important that a solvent or the like does not elute. For example, an epoxy-based adhesive or an acrylic-based adhesive is suitable.

At the end of the housing 210, a cap 2
74 is screwed in a liquid tight manner, and a hot water side valve seat member 232 is fitted inside the cap 274. Further, the housing 210, the movable valve body 220, and the hot water side valve seat member 232
And the cap 274 form an annular hot water channel 230. The hot water flow path 230 communicates with the hot water inlet 212, and hot water is supplied from a hot water supply device. The annular water flow path 24 is formed by the housing 210 and the movable valve body 220.
0 is formed. The water flow path 240 communicates with the water inlet 211 through a passage (not shown) formed in the housing 210 in the longitudinal direction, and water is supplied from a water pipe.

The movable valve element 220 slides in the axial direction of the housing 210 between a hot water valve seat 234 formed on the hot water valve seat member 232 and a water valve seat 244 formed on the housing 210. It is arranged freely and detachably with the hot water side valve seat 234 or the water side valve seat 244. Movable valve element 220
One is biased by a spring 236 and the other is biased by a temperature sensing element 250, and the balance of these forces determines its position and adjusts the mixing ratio of hot and cold water.

The temperature-sensitive element 250 is a known wax-pellet-type temperature-sensitive element that encloses a wax having a predetermined volume change depending on the temperature and protrudes and extends at an end 257 by thermal expansion of the wax, and is held in the element case 251. Thus, it is disposed in the mixed hot and cold water flow passage 245.
Therefore, when the temperature of the mixed hot and cold water changes, the temperature-sensitive element 250 expands and contracts in the axial direction, and the position of the movable valve body 220 urged by the end of the temperature-sensitive element 250 changes, changing the mixing ratio of the hot and cold water. It works to keep the tap water temperature constant.

The advancing / retracting mechanism 260 includes a temperature adjusting handle 27.
By rotating 0, the position of the temperature sensing element 250 can be displaced in the axial direction. For this reason, the spindle guide 26 screwed to the housing 210 in a liquid-tight manner.
2, a spring case 264 is spline-fitted, and a spindle 268 meshes with an inner screw at one end of the spring case 264. Also, spring case 2
A temperature sensing element 250 is joined to the other end of the spindle 64, and a temperature adjustment handle 270 is fixed to the other end of the spindle 268. Therefore, by rotating the temperature adjustment handle 270, the spindle 268 rotates, the spring case 264 slides in the axial direction, and the position of the temperature sensing element 250 can be displaced in the axial direction.

In the spring case 264, one end is supported by the spring case 264, and the other end is
9 is housed therein. The element holder 259 is provided at the end 2 of the temperature-sensitive element 250.
57, and receives the extension of the end portion 257 due to the rise in the temperature of the mixed hot water, and biases the spring 266. Therefore, the movable valve element 220 and the temperature sensing element 250 are at positions where the springs 266 and 236 are balanced.

In the hot and cold water mixing faucet of the second embodiment described above, unevenness is provided inside
Since the support for the water channel, the temperature sensing element 250, and the like is formed, the number of components constituting the hot and cold water mixing apparatus can be reduced. Further, since the housing 210 is formed by two members of PPS having a cross section parallel to the axial direction of the housing 210 as an adhesive cross section, the inside of the housing 210 can have a complicated structure. Therefore, the housing 2
10 can be made the same shape as the shape formed of the conventional metal material, and the conventional internal member can be used as it is.

Since the housing 210 is formed of PPS, the peripheral surface can be made smooth, and there is no need to perform secondary processing such as grinding and polishing at a portion where a seal member such as an O-ring contacts. As a matter of course, the same effects as in the first embodiment can be obtained with respect to the heat insulating effect and the weight reduction by forming the housing 210 of PPS.

Although the temperature control is performed by the wax element in the second embodiment, a configuration in which the temperature control is performed by the SMA is also preferable, and a configuration in which the temperature control is not performed may be employed. In the second embodiment,
Although the structure has one water outlet, the structure may have two water outlets and selectively discharge water by a switching mechanism.

Next, a third embodiment of the present invention will be described. FIG. 5 is a sectional view of a hot and cold water mixing faucet according to a third embodiment.
The hot water mixing faucet of the third embodiment has the same configuration except for the housing 210 of the hot water mixing faucet of the second embodiment. Therefore, the description of the configuration other than the housing 280 of the third embodiment is omitted. As shown in the figure, the housing 280 is formed by bonding three members 282, 284 and 286. The adhesive surfaces of the three members are all perpendicular to the longitudinal direction of the housing 280 and are concave portions of the concave and convex portions provided on the inner surface of the housing 280. However, in order to maintain strength and secure liquid tightness, the adhesive surface is provided with a water inlet 211, a hot water inlet 212, and a mixed hot water outlet 2
Preferably, the nineteen openings are avoided.

In the hot and cold water mixing apparatus according to the third embodiment, since the concave portion of the housing 280 is used as an adhesive surface, a sufficient sealing force can be obtained without the adhesive surface coming into contact with a seal portion such as an O-ring. In addition, the bonding surface is
Since the surface is perpendicular to the longitudinal direction of 10, a sufficient strength in the circumferential direction can be obtained.

Next, a fourth embodiment of the present invention will be described. FIG. 6 is a sectional view of a hot and cold water mixing faucet according to a fourth embodiment.
The hot and cold water mixing faucet of the fourth embodiment has the same configuration except for the housing 210 of the hot and cold water mixing faucet of the second embodiment. Therefore, the description of the configuration other than the housing 290 of the fourth embodiment will be omitted. As shown in the figure, the housing 290 is formed by bonding four members 292, 294, 296, and 298. The adhesive surfaces of these three members are all surfaces perpendicular to the longitudinal direction of the housing 280 and are convex portions of the concave and convex portions provided on the inner surface of the housing 280. However, it is preferable that the bonding cross section does not contact a sealing member such as an O-ring in order to obtain a sufficient sealing force.

In the hot and cold water mixing apparatus of the fourth embodiment, since the convex portion of the housing 290 is used as the bonding surface, the bonding area can be increased and the bonding strength can be increased.

Here, the external members (the outer casing 50 and the housings 210, 280, 290) and the internal members (the inner casing 60, the element case 251 and the like) of the first to fourth embodiments described above are formed. A method of forming a flow path, that is, a method of combining an external member and an internal member will be described. FIG. 7 is an explanatory diagram showing how to combine an external member and an internal member. In FIG. 7A, the channels C and D are formed by the flat inner peripheral surface of the outer member A and the unevenness of the outer peripheral surface of the inner member B. FIG.
In (b), the channels C and D are formed by the unevenness on the inner peripheral surface of the external member A and the flat outer peripheral surface of the internal member B. In FIG. 7 (c), both the inner peripheral surface of the outer member A and the outer peripheral surface of the inner member B have irregularities, and the respective convex portions engage with each other, so that the flow passages C, D To form In FIG. 7D, the inner peripheral surface of the outer member A and the inner member B
The outer surfaces of the outer member A have irregularities, the convex portion of the external member A is combined with the concave portion of the internal member B, and the concave portion of the external member A is combined with the convex portion of the internal member to form the flow paths C and D. I do.

In the first to fourth embodiments, the flow path is mainly formed by the fact that the inner peripheral surface of the external member A shown in FIG. Road C,
Channels C and D are formed by the method of combining the external member A and the internal member B forming D, and the unevenness on the inner peripheral surface of the external member A and the flat outer peripheral surface of the internal member B shown in FIG. 7C or 7D, the outer member A is formed by the combination of the outer member A and the inner member B.
A configuration in which the flow path is formed by a combination of the inner member B and the inner member B is also preferable.

Next, a method of joining components of the external members (housings 210, 280, 290) of the second to fourth embodiments will be described. FIG. 8 is an explanatory view showing a method of joining components forming an external member. In FIG. 8A, the external members are components E1, separated by a plane parallel to the axis.
It is formed by joining E2. The housing 210 of the second embodiment is formed by this joining method. In this case, even if the inner surface of the external member has a complicated shape, the components E1 and E2 can be integrally formed by injection, and there is no need to form the external member by joining three or more components. Of course, it may be joined by three or more components. Also, the joining does not have to be performed on a plane passing through the center of the cross section.

FIGS. 8B and 8C are explanatory views showing a method of joining a substantially cylindrical external member to two or more substantially cylindrical parts. In FIG. 8 (b), the external member is formed by a concave portion on the inner peripheral surface of the external member.
3 are joined. The housing 280 of the third embodiment is formed by this joining method. According to this joining method, the seal member normally provided on the convex portion of the inner peripheral surface of the external member is not damaged by minute irregularities generated at the joined portion. On the other hand, FIG.
In, the external member is formed by joining the components G1, G2, and G3 on the surface that becomes the convex portion of the inner peripheral surface of the external member. The housing 290 of the fourth embodiment is formed by this joining method. In the case of using this joining method, joining is performed at the convex portion of the inner peripheral surface of the external member, so that joining strength can be increased.

Here, in the description of the joining method of the components of the external member in the second to fourth embodiments, the external member has a substantially cylindrical shape, but the external member is limited to a substantially cylindrical shape. Instead, it may be of any shape. Also, the joining surfaces need not be perpendicular or parallel to the axis of the external member. Further, the selection of the joining method is determined by the strength, shape, and the like required of the external member. Not only is the external member formed by a single joining method, but also the external member is formed by combining a plurality of joining methods. Is also suitable.

Next, a fifth embodiment of the present invention will be described. The hot and cold water mixing faucet of the fifth embodiment comprises an outer casing 5
0 is a faucet having a stepped portion on the inner peripheral surface toward the center. FIG. 9 is a sectional view of a hot and cold water mixing faucet according to a fifth embodiment. In the drawings, the same parts as those in the first embodiment are denoted by the same reference numerals for convenience. This will be described below with reference to FIG.

As shown in FIG.
A mixing valve casing 62 housed in the outer casing 50, a switching valve casing 66 also housed in the outer casing 50, a mixing valve cartridge 70 housed in the mixing valve casing 62, A switching valve cartridge 150 housed in the cartridge 66, a callan outlet 170, and a shower outlet 180 are provided. In the outer casing 50, a water inlet 51 connected to the water supply leg fitting 20, a hot water inlet 52 connected to the hot water supply leg fitting 40, a callan outlet 170, and a shower outlet 180 are formed. The outer casing 50, the mixing valve casing 62 and the switching valve casing 66 are made of PP
It is formed by S.

On the inner peripheral surface of the outer casing 50, steps 54a, 54b, 54c, 5 are formed from both open ends toward the inside.
6a, 56b, 56c and 56d are formed. On the other hand, on the outer peripheral surface of the mixing valve casing 62, a convex portion 63 for an O-ring for sealing with the inner peripheral surface of the outer casing 50, and a step portion 64 between the convex portion 63 and the insertion end are formed. Have been. A slight clearance is provided between the convex portion 63 and the inner peripheral surface of the outer casing 50, and the O-ring 1
Sealed by 91a. Also, a slight clearance is provided between the outer peripheral surface of the step portion 64 on the side with the larger outer radius and the inner peripheral surface of the outer casing 50 on the side with the smaller inner diameter at the step portion 54a. Have been. Therefore, the mixing valve casing 62
An annular space is formed by the convex portion 63 of the outer casing 50 and the step portion 54a of the outer casing 50, and this space is used as the hot water flow path 130. Also, a slight clearance is provided between the outer peripheral surface of the insertion end of the mixing valve casing 62 and the inner peripheral surface of the outer casing 50 on the side with the smaller inner diameter at the stepped portion 54b, which is also sealed by the O-ring 191c. I have. Therefore, an annular space is also formed between the stepped portion 64 of the mixing valve casing 62 and the stepped portion 54b of the outer casing 50, and this space is used as the water flow path 142.

Similarly, on the outer peripheral surface of the switching valve casing 66, a convex portion 67 and step portions 68a and 68b are formed, and the convex portion 67 and the step portion 56 of the outer casing 50 are formed.
and the mixed hot water flow path 18 to the shower outlet 180
4. Step 68a and Step 56b of Outer Casing 50
Thus, a flow path 174 of the mixed hot and cold water to the curan outlet 170 is formed by the water flow path 140, the step 68b, and the step 56c of the outer casing 50. Also in this case, to block each flow path, O.D.
Rings 196a, 196b, 196c, 196d are provided.

A passage 58 is formed in the outer casing 50 so that the water flow path 140 and the water flow path 142 communicate with each other. In addition, the outer casing 50 has a curan outlet 17.
A passage 176 is formed such that the flow path 174 of the mixed hot and cold water and the callan outlet 170 communicate with each other.

The water flowing from the water inlet 51 into the water flow path 140 flows into the mixing valve cartridge 70 through the passage 58 and the water flow path 142, and the hot water flows from the hot water inlet 52,
It flows into the mixing valve cartridge 70 through the hot water flow path 130. Then, hot and cold water is mixed in the mixing valve cartridge 70, and the mixed hot and cold water passes through the switching valve cartridge 150,
It flows out of the curan outlet 170 or the shower outlet 180. Note that the structures of the mixing valve cartridge 70 and the switching valve cartridge 150 are the same as in the first embodiment, and a description thereof will be omitted.

According to the hot and cold water mixing faucet of the fifth embodiment described above, the outer casing 50 is formed in such a shape that the inner diameter gradually decreases from the open end, so that the outer casing 50 can be easily formed by integral injection molding. It can be in a shape suitable for production. In addition, by forming the outer casing 50 into a shape that is gradually reduced from the open end, when the mixing valve casing 62 or the switching valve casing 66 is inserted into the outer casing 50, the distance by which the seal member laterally shifts can be reduced. it can. For example, mixing valve cartridge 7
The O-ring 191c installed at the insertion end of the outer casing 50 is provided at a deep position in the outer casing 50, but only needs to be laterally displaced from the step portion 54b of the outer casing 50 by a few millimeters while contacting the inner peripheral surface of the outer casing 50. . Therefore, damage to the seal member can be reduced. Naturally, since the outer casing 50 is formed of PPS having heat insulation properties, it is possible to prevent the outer peripheral surface of the outer casing 50 near the hot water flow path from becoming hot.

In the fifth embodiment, O-rings 191a, 191b, and 191c are used to seal each flow path formed by the outer casing 50 and the mixing valve casing 62, and the inner peripheral surface of the outer casing 50 and the mixing valve casing 62 are sealed. This is performed by pressure bonding with the outer peripheral surface of the substrate. However, the sealing may be performed by a method shown in FIG.

FIG. 10 is a schematic diagram of a method of sealing each flow path of water, hot water, and mixed hot water formed by the outer casing 50 and the mixing valve casing 62. FIG. 10 (a)
In the sealing method described in the fifth embodiment, O-rings 192a and 193a are located between the inner peripheral surface of the outer casing 50 and the outer peripheral surface of the mixing valve casing 62. If this sealing method is used, as described above, the mixing valve casing 62
Can be reduced when the seal member is inserted into the outer casing 50.

FIG. 10 (b) shows a sealing method in which O-rings 192b and 193b are located between the end face of the step portion of the outer casing 50 and the end face of the step portion of the mixing valve casing 62. When this sealing method is used, the O-rings 192b and 193b installed on the end face of the step portion are used when the mixing valve casing 62 is inserted into the outer casing 50.
Since there is no contact with the inner peripheral surface of the outer casing 50, damage due to contact of the O-rings 192b and 193b can be prevented. Also, O-rings 192b, 193
Since the load applied to b can be adjusted, the sealing force can be increased.

By combining these sealing methods, as shown in FIG. 10 (c) or FIG. 10 (d), one of the O-rings 192c and 193d of the flow path is connected to the inner peripheral surface of the outer casing 50 and the mixing valve. The O-rings 193c and 192d are located between the outer peripheral surface of the casing 62 and the other O-rings 193c and 192d.
May be located between the end faces of the step portion. The combination of these sealing methods is determined by the material used, the manner of action of the water pressure, and the like. The outer casing 50
The same applies to the case where the flow path formed by the and the switching valve casing 66 is sealed.

The embodiment of the present invention has been described above.
The present invention is not limited to such an embodiment at all. For example, in the third or fourth embodiment in which the surface perpendicular to the longitudinal direction of the housing is the adhesive surface, the protrusion on the inner peripheral surface of the housing may be used. It is needless to say that the present invention can be implemented in various modes without departing from the gist of the present invention, such as a configuration in which the adhesive surface and the adhesive surface of the concave portion are mixed.

[0092]

The faucet <br/> of claim 1, wherein, as described in the foregoing, the internal exert faucet function which controls water discharge from the water discharge port
Housing the member in the housing space of the outer member, since the external member is formed of a resin, it is possible to have thermal insulation, thermal insulation. Therefore, even if a hot water flow path is provided, the outside
The peripheral wall surface does not become too hot, and the position of the mixing valve in the faucet can be freely designed. Further, since the specific gravity is smaller than that of the metal material, the weight of the entire faucet can be reduced, and the handling can be facilitated. Further, since the inner peripheral wall surface of the outer member can be made smooth, it is not necessary to perform secondary processing such as grinding and polishing on a portion where the seal member such as an O-ring contacts. Therefore, the flow path and / or <br/> other exit passing through the outer peripheral wall of the inner member extending the gap formed between the outer member and the inner member inlet mouth extending through the outer peripheral wall of the inner member In forming the flow path from the outside, secondary processing such as grinding and polishing of the inner peripheral wall surface of the external member is not required. In addition, since this external member is formed of resin, it is easy to perform integral molding and is suitable for mass production, and the yield is kept high, contributing to quality improvement.

If the inner peripheral surface of the outer member has a flat shape with no irregularities, integral injection molding becomes easier and mass production can be achieved. Further, when the thickness is made constant, the curing speed of the resin becomes constant, and the appearance can be made extremely good.

In the faucet according to the second aspect , the outer periphery of the inner member is provided.
By the convex part provided on the wall, the external member and the internal member
The gap to be formed is divided into two or more, and the divided gap is
Is a passage for one kind of fluid or two or more kinds of fluids. Yo
Therefore, the outer surface of the inner member has only an uneven portion.
The inner wall surface of the part can be made simple
Thus, injection integral molding can be facilitated.

In the water faucet according to the third aspect , the fluid inlet and the fluid inlet are provided.
Internal member, which has a
It is stored in the storage space of the component members, and this external member is
As it was formed, the heat retention and cutoff were the same as the faucet of claim 1.
Exhibits thermal properties and improves the flexibility of mixing valve position in the faucet
Can be achieved. In addition, specific gravity is higher than metal materials
Because it is small, the weight of the entire faucet can be reduced,
Handling can be facilitated. Furthermore, the internal member
The outer member and the inner member are formed by the convex portion provided on the outer peripheral wall.
Is divided into two or more spaces.
The gap is a passage for one kind of fluid or two or more kinds of fluids.
You. Therefore, it is necessary to provide the uneven portion on the outer peripheral wall surface of the internal member.
The inner wall surface of the outer member can be made simple.
Therefore, injection integral molding can be facilitated.

[0096]

[0097]

[0098]

[0099]

[0100]

[0101]

[0102]

[0103]

[0104]

[0105]

[0106]

[0107]

[Brief description of the drawings]

FIG. 1 is an external plan view of a hot and cold water mixing faucet according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view including a water supply leg fitting 20 of the hot and cold water mixing faucet of the first embodiment.

FIG. 3 is a sectional view of the main body of the hot and cold water mixing faucet of the first embodiment.

FIG. 4 is a cross-sectional view of the main body of the hot and cold water mixing faucet of the second embodiment.

FIG. 5 is a sectional view of the main body of the hot and cold water mixing faucet of the third embodiment.

FIG. 6 is a main body sectional view of a hot and cold water mixing faucet of a fourth embodiment.

FIG. 7 is an explanatory view showing how to combine an external member A and an internal member B according to the first to fourth embodiments.

FIG. 8 is an explanatory view showing a method of joining components forming an external member according to the second to fourth embodiments.

FIG. 9 is a sectional view of the main body of the hot and cold water mixing faucet of the fifth embodiment.

FIG. 10 is a schematic diagram of a method of sealing a flow path formed by an outer casing 50 and a mixing valve casing 62 of a hot and cold water mixing faucet of a fifth embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Body 20 ... Water supply leg fitting 21 ... Entrance 22 ... Housing 23 ... Valve seat 24 ... Connection fitting 26 ... Packing 28 ... Fastener 29 ... Outlet 30 ... Water shutoff valve 32 ... Valve body 34 ... Cap 35 ... Guide part 36 ... End 37: Opening 38: Strainer 40: Hot water supply fitting 50: Outer casing 51: Water inlet 52: Hot water inlet 54a, 54b, 56a, 56b, 56c: Step 55: Water flow path 58: Passage 60: Inner casing 62 ... Mixing valve casing 63,67 ... Convex portion 64,68a, 68b ... Stepped portion 66 ... Switching valve casing 70 ... Mixing valve cartridge 80 ... Temperature control handle 90 ... Temperature sensing spring chamber 100 ... Bias spring chamber 110 ... Movable valve body 111 ... communication hole 120 ... slide chamber 124 ... worm 130, 134 ... hot water flow path 136 ... hot water side valve seat 138 ... hot water side Ports 140, 142, 144 Water flow path 146 Water side valve seat 148 Water side port 150 Switching valve cartridge 152 Switching valve 153 Housing 154 Inflow chamber 155 Valve body 156, 157 Hot water passage hole 160 Switching handle 170: Callan outlet 172, 174, 176 ... Flow path 173, 183 ... Hole 180 ... Shower outlet 182, 184 ... Flow path 191, 192, 193, 196 ... O-ring 200: Hot and cold water mixing faucet 210, 280, 290 ... Housing 211 ... Water inlet 212 ... Hot inlet 219 ... Outlet 220 ... Movable valve element 230 ... Hot flow path 232 ... Hot side valve seat member 234 ... Hot side valve seat 240 ... Water flow path 244 ... Water side valve seat 245 ... Mixed hot water Water flow path 250 ... Temperature-sensitive element 251 ... Element case 257 ... End 260 ... Advancing / retreating mechanism 262 ... Spin Dollar guide 264 ... Spring case 268 ... Spindle 270 ... Temperature control handle 274 ... Cap 282,284,286 ... Member 292,294,296,298 ... Member

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-125534 (JP, A) JP-A-5-10467 (JP, A) Fully open 1979-51834 (JP, U) Really open 1984 10589 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F16K 27/00 F16K 11/00-11/24

Claims (3)

(57) [Claims] 1. A faucet for discharging a supplied fluid from a water outlet , comprising: an inner member; and an outer member located outside the inner member.
Wherein the inner member has a through passage for communicating the entering-<br/> port and outlet and having to pass through the outer peripheral wall and an outlet connected to the inlet and the water discharge port before Symbol fluid flows into the interior, From the spout
Comprising a water faucet function in charge of the water discharge, the outer member is formed by tree butter to form a gap between the <br/> outside peripheral wall surface of said inner member, a housing space for housing the internal member Bei example, the gap, the inlet and / or in communication with said outlet, faucet, characterized in that there is a flow path from the flow path and / or the outlet leading to the inlet. 2. The external member according to claim 1, wherein said internal member is provided on an outer peripheral wall surface of said external member.
In combination with the inner peripheral wall of the member, the gap is
2. The faucet according to claim 1, wherein the faucet has a cutting portion . 3. Water for discharging a supplied fluid from a water discharge port.
A plug, an outlet connected to the inlet and the water outlet into which the fluid flows,
An inner member having a passage communicating the inlet and the outlet, and formed of resin, between an outer peripheral wall surface of the inner member;
Forming a gap and having a storage space for storing the internal member
An outer member, wherein the gap communicates with the inlet and / or the outlet
From the flow path to the inlet and / or from the outlet
The inner member is provided on an outer peripheral wall surface, and an inner peripheral wall surface of the outer member is provided.
Has a convex portion that partitions the gap into two or more in combination with
Faucet characterized by Rukoto.