JP2616873B2 - Water faucet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a faucet.

[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.

Further, in a casing formed by molding, since the casting has a small heat capacity and lacks heat insulation, if a hot water flow path is provided inside the casing, the temperature of the casing surface is partially increased, so that it may be difficult to use the casing. . 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,
It is made for the purpose of being easy to manufacture and having heat insulation properties, and has the following configuration.

[0010]

A faucet according to claim 1 is
An internal member including a fluid inlet and an outlet, a passage communicating the inlet and the outlet, and a storage space for storing the internal member, between the internal member stored in the storage space; The gist of the present invention comprises an external member forming a gap, an inlet and / or an outlet of the internal member communicating with the gap, and a resin layer provided on at least a part of an inner peripheral surface of the external member.

Here, in the water faucet according to claim 1, the internal member may be provided with a valve device for controlling a fluid flowing through a passage of the internal member. in this case,
The valve device may have a housing having a predetermined shape to be inserted into a passage of the internal member, and may include at least a part of a function of controlling a fluid in the housing.

Further, in the water faucet according to any one of claims 1 to 3, the external member may be provided with an insertion hole for inserting the internal member into the storage space for storing the internal member. . In this case, the insertion hole is a communication port that communicates the valve device and a drive unit of the valve device when the internal member includes a valve device that controls a fluid flowing through a passage of the internal member, or It can also be configured as a fixing part for fixing the inlet or outlet of the fluid in the external member or the faucet to another structure.

[0013]

The water faucet according to the first aspect of the present invention has a resin layer on the inner peripheral surface of the outer member to prevent the inner peripheral surface of the outer member from being corroded or eroded by cavitation. . Further, secondary processing such as grinding and polishing is not required for a portion where a seal member such as an O-ring contacts. Therefore, even in the case of a casting, the casting surface may be left as it is,
Simplify the manufacturing process. In addition, since the resin has a large heat capacity, it has a heat insulating property and prevents the outer surface near the hot water flow path from becoming hot.

Here, as the resin forming a layer on the inner peripheral surface of the external member, a fluororesin represented by polytetrafluoroethylene, a thermosetting epoxy resin, and a plastic generally called an engineering plastic correspond. An engineering plastic is a plastic that is excellent in heat resistance, dust resistance, chemical resistance, flame resistance, and the like. Numerically, the plastic is a plastic having a tensile strength of about 50 MPa or more, an impact strength of about 50 J / m or more, and a heat deformation temperature of about 100 ° C. or more (Plastic processing terminology dictionary). For example, polyamide (PA), polycarbonate (PC), polyacetal (POM),
So-called general-purpose engineering plastics such as modified polyphenylene ether (PPE) and polyester, polyphenylene sulfide (PPS), polyarylate (PAR), polyetherimide (PEI), polysulfone (PSF), polyethersulfone (PES), polyetherketone It is possible to use so-called super engineering plastics such as (PEK), polyetheretherketone (PEEK), polyimide (PI), polyamideimide (PAI), liquid crystal plastic, and thermosetting resin with excellent impact resistance and chemical resistance. It is.
Further, it is also possible to use a resin obtained by adding glass fibers to these resins, or a resin obtained by mixing two or three or more kinds.

The water faucet according to the first aspect of the present invention is any water faucet in a state generally used for fluids such as water, hot water, mixed hot and cold water, soapy water, chemical water, mousse, alcohol, and saline. including. In addition, the present invention is not limited to the one provided with the valve device inside the faucet, but also includes the one without the valve device, for example, the case where the faucet main body has no valve device and the water stop valve is provided in the shower head.

The resin forming a layer on the inner peripheral surface of the external member of the faucet according to the first aspect is not limited to a single resin layer, but may be two or more layers of different resins. Further, the resin layer on the inner peripheral surface of the external member of the faucet of the present invention is formed by directly spraying a resin dissolved in a solvent or the like, or by inserting a tube formed of the resin into the external member. It is also included.

According to a second aspect of the present invention, there is provided a water faucet for stopping a flow of a fluid with respect to a fluid flowing through a passage provided in the internal member of the valve device.
Controls such as switching, mixing of two or more fluids, adjusting the mixing ratio, and adjusting the flow velocity.

According to the third aspect of the present invention, the valve device is housed in a housing having a predetermined shape, thereby facilitating the assembly of the water faucet and coping with a case where a failure occurs in the valve device.

The faucet according to the fourth aspect of the present invention facilitates the insertion of the internal member by providing an insertion hole for inserting the internal member in the storage space for storing the internal member of the external member.

In the water faucet according to the fifth aspect, the insertion hole is also used as a communication port of the operation part of the valve device, a fluid inlet / outlet, and a fixing part for fixing the water faucet to another structure. The number of holes provided is reduced to maintain the strength of the external member.

[0021]

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 a hot and cold water mixing faucet according to one embodiment of the present invention. This 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) are provided. 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 supply leg fitting 40 has the same configuration as the hot water supply leg fitting 20, is connected to a hot water supply pipe (not shown), and introduces hot water into a hot water flow path 130 (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 the line II-II of FIG. As shown in FIG.
Are an inner casing 60 fitted in the outer casing 50, a mixing valve cartridge 70 housed in the inner casing 60, a switching valve cartridge 150 also housed in the inner casing 60,
0 and a shower outlet 180. The outer casing 50 has a water inlet 51 connected to the water supply leg fitting 20 and a hot water inlet 52 connected to the water supply leg fitting 40.
, A callan outlet 170 and a shower outlet 180 are formed.

The outer casing 50 is formed of a pipe made of an alloy, and the inner peripheral surface thereof is covered with a coating layer 54 of polytetrafluoroethylene over a thickness of 100 μm. This polytetrafluoroethylene is one of the fluororesins and is a resin having excellent heat resistance and chemical resistance and a small friction coefficient. In this embodiment, polytetrafluoroethylene is used for the coating layer 54, but a thermosetting epoxy resin may be used. The epoxy resin has a large adhesive force to a metal, and can increase the softening point by appropriately selecting a curing agent, thereby making the plastic excellent in heat resistance.
Of course, other plastics can be used as long as they are excellent in performance. For example, fluorine resins other than polytetrafluoroethylene,
Polyphenylene sulfide (PPS), polyimide (P
I), polyamide imide (PAI), polyether ether ketone (PEEK), polyether sulfone (P
ES), polysulfone (PSF), polyarylate (PAR), polyetherimide (PEI) and the like can also be used.

The coating layer 54 of the outer casing 50 is coated by melting and spraying polytetrafluoroethylene, and the required layer thickness is obtained by adjusting the amount of spraying. When a thermosetting epoxy resin is used, the coating layer 54 is formed by spraying an epoxy resin dissolved in a solvent. In the present embodiment, the resin layer is obtained by spraying polytetrafluoroethylene as described above. However, the resin layer is formed by previously forming a heat-resistant resin into a tubular shape and inserting the resin into the inside of the outer casing 50. The configuration is also suitable.

Since the outer diameter of the inner casing 60 is several millimeters smaller than the inner diameter of the outer casing 50, a gap is formed between the two, and the gap is formed between the water flow path 55 and the mixed hot and cold water. Flow path 17 to callan outlet 170
4 and a flow path 184 to the shower outlet 180 of the mixed hot and cold water.

Water flows into the water flow path 55 from the water inlet 51, and flows into the mixing valve cartridge 70 through a hole (not shown) formed in the inner casing 60.
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.

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.
0, and a hot water side valve seat 134 having a hot water side port 132 which is a hot water passage from the hot water flow path 130 to the bias spring chamber 100 is formed. Similarly, a water flow path 140 is formed in the mixing valve cartridge 70, and a water-side valve seat 144 having a water-side port 142 that is a water path from the water flow path 140 to the temperature-sensitive spring chamber 90 is formed. ing. The mixing valve cartridge 70 is provided with a water flow path 140 on the outer periphery thereof.
1 is communicated through a hole formed in the inner casing 60. A water-side port 142, which is a water passage from the water flow path 140 to the temperature-sensitive spring chamber 90, has a movable valve body 110 described later.
There is formed a water-side valve seat 144 on which is seated.

The movable valve body 110 detachably mounted on the hot water side valve seat 134 and the water side valve seat 144 is slidably fitted between the hot water side valve seat 134 and the water side valve seat 144. 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 passage 130 passes through the gap between the movable valve body 110 and the hot water side valve seat 134, flows into the bias spring chamber 100, and then passes through the communication hole 111. It flows into the temperature-sensitive spring chamber 90. On the other hand, water channel 1
The water that has flowed into the movable valve body 110 and the water-side valve seat 144
And flows into the temperature-sensitive spring chamber 90.
Therefore, hot and cold water is mixed in the temperature-sensitive spring chamber 90, 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 174 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 sensing 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 the outer periphery, like the annular flow path 172 for allowing the mixed hot water to flow into the flow path 174, the mixed hot water is supplied to the flow path 184.
And an annular flow path 182 for inflowing the fluid into the air. Then, the switching valve cartridge 15 is attached to the inner casing 60.
0 are stored in a watertight manner, so that the flow path 172 and the flow path 1
74 communicates through a hole 61 formed in the inner casing 60. Similarly, the flow path 182 and the flow path 184
It communicates via a hole 62 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 includes the inflow chamber 15.
A hot and cold water passage hole 156 that communicates with the inflow chamber 154 and the flow passage 182 is drilled. The hot water passage holes 156 and 157
Changes the opening area of the switching valve 152 through 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 15
2 rotates.

Therefore, by rotating the switching valve 152 through 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. Channel 172,
Water is discharged from the curran outlet 170 through the hole 61 of the inner casing 60 and the flow path 174. By opening the hot water passage hole 157 by the valve element 155, the mixed hot and cold water having a water discharge amount corresponding to the opening area is supplied to the flow path 182 and the inner casing 6.
Water is discharged from the shower outlet 180 through the zero hole 62 and 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, by the switching valve cartridge 150 described above,
Switching of water discharge and stoppage of mixed hot water from the curan outlet 170, switching of water discharge and stoppage of mixed hot water from the shower outlet 180, and adjustment of the water discharge amount are performed.

According to the hot and cold water mixing faucet of the embodiment described above, since the inner peripheral surface of the outer casing 50 is provided with the coating layer 54 of polytetrafluoroethylene, erosion due to cavitation of the outer casing 50 can be prevented. Can be. In addition, since the surface of the coating layer 54 can be made smooth, there is no need to perform secondary processing such as grinding and polishing of a portion where a sealing material such as an O-ring contacts. Further, if the coating layer 54 is made thicker, the resin has heat insulating properties, so that 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 degree of freedom in design such as changing the position of the mixing valve cartridge 70 and the switching valve cartridge 150 can be increased. Of course, since the outer casing 50 is formed by casting, it can have sufficient strength. 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.

In this embodiment, the temperature of the mixed hot and cold 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.

The embodiment of the present invention has been described above.
The present invention is not limited to such embodiments at all. For example, a configuration in which the outer casing 50 is formed of another metal material such as a casting or an aluminum alloy, a configuration in which the outer casing 50 is formed of a material other than a metal material, and the like. Of course, the present invention can be implemented in various modes without departing from the gist of the present invention.

[0044]

As described above, the faucet according to the first aspect has a resin layer on the inner peripheral surface of the outer member.
This has the effect that it is easy to respond to various requests required for faucets. For example, if attention is paid to the smoothness of the surface of the resin layer, the friction coefficient of the fluid flow path can be reduced, erosion due to cavitation of external members and the like can be prevented, and grinding and polishing can be performed. There is no need for secondary processing, and the manufacturing process can be facilitated. When a sealing member such as an O-ring contacts the resin portion, a high sealing force can be obtained without grinding and polishing. In addition, a configuration (thickness, etc.) that makes use of the heat insulation properties of the resin
Therefore, even if the hot water flow path is provided, the outer peripheral surface of the external member does not become too hot, and the position of the mixing valve in the faucet can be freely designed. Furthermore, if engineering plastic is used for the resin portion, secondary processing such as grinding and polishing can be easily performed. Of course, since the outer member can be formed of a metal material, the outer surface can exhibit a high-grade feeling and a heavy feeling due to the luster and texture of the metal.

In the water faucet according to the second aspect, since the valve device is provided, the flow of the fluid is stopped and switched, the mixing of two or more types of fluids, and the mixing ratio of the fluid flowing through the passage provided in the internal member are controlled. Various controls such as adjustment and flow rate adjustment can be performed.

In the faucet according to the third aspect, the function of the valve device is housed in a housing having a predetermined shape, so that the valve device can be assembled separately from the assembly of the faucet. Also, when the valve device is assembled to the faucet, the number of parts can be reduced, so that the faucet can be easily assembled. Further, even when a failure occurs in the valve device, the valve device can be easily replaced.

In the faucet according to the fourth aspect, the insertion space for inserting the internal member is provided in the storage space for accommodating the internal member of the external member, so that the internal member can be easily inserted when the faucet is assembled. be able to.

According to the fifth aspect of the present invention, the insertion hole is provided in the external member because the insertion hole is also used as the communication port of the drive unit of the valve device, the inlet / outlet of the fluid, and the fixing unit for fixing the faucet to another structure. The number of holes can be reduced, and as a result, the strength of the external member can be maintained.

[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 embodiment.

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Body 20 ... Water supply leg fitting 21 ... Inlet 22 ... Housing 23 ... Valve seat 24 ... Connection fitting 26 ... Packing 28 ... Fastener 29 ... Outlet 30 ... Water stop 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 54: Coating layer 55: Water channel 60: Inner casing 61, 62 ... Hole 70: Mixing valve cartridge 80: Temperature adjustment handle 90 ... Temperature sensing spring chamber 100 ... Bias spring chamber 110 ... Movable valve body 111 ... Communication hole 120 ... Slide chamber 124 ... Warm 130 ... Hot water passage 132 ... Hot side port 134 ... Hot side valve seat 140 ... Water flow passage 142 water-side port 144 water-side valve seat 150 switching valve cartridge 152 switching valve 153 housing 15 ... inflow chamber 155 ... valve body 156, 157 ... hot water passage holes 160 ... switching handle 170 ... Curran outlet 172, 174 ... passage 180 ... Shower outlet 182 ... passage

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A 2-143578 (JP, U) JP-A-61-152073 (JP, U)

Claims (5)

(57) [Claims] 1. An internal member having an inlet and an outlet for a fluid, a passage communicating the inlet and the outlet, and a storage space for storing the internal member, wherein the internal space is stored in the storage space. An outer member forming a gap between the outer member and the outer member, the inlet and / or outlet of the inner member being communicated with the gap, and a resin layer provided on at least a part of an inner peripheral surface of the outer member. plug. 2. The faucet according to claim 1, wherein the internal member includes a valve device for controlling a fluid flowing through a passage of the internal member. 3. The valve device according to claim 1, further comprising a housing having a predetermined shape inserted into the passage of the internal member, wherein at least a part of a function of controlling the fluid is housed in the housing. 2. The faucet according to 2. 4. The faucet according to claim 1, wherein the external member has an insertion hole for inserting the internal member into the storage space for storing the internal member. 5. The communication device according to claim 1, wherein the insertion hole is a communication port that communicates the valve device with a driving unit of the valve device when the internal member includes a valve device that controls a fluid flowing through a passage of the internal member. A fluid inlet or outlet at the outer member,
5. The faucet according to claim 4, wherein the faucet is a fixing portion for fixing the faucet to another structure. 6.