JP2019082099A - Faucet and manufacturing method of the same - Google Patents

Abstract

To provide a faucet which is easily manufactured and which has improved heat retaining property.SOLUTION: A faucet (10) comprises a faucet body portion (21) in which water flows. The faucet body portion (21) is formed of resin, and covered with a heat retaining material (22).SELECTED DRAWING: Figure 3

Description

  The present invention relates to a faucet and a method of manufacturing the same.

  Heretofore, various types of faucets of this type are known. For example, as a conventional faucet, the exterior of the faucet body formed by casting is covered with a cover formed by a synthetic resin or a metal material, and the space formed between the faucet body and the cover is thermally insulated The thing of the structure where material was filled is known (refer to patent documents 1).

Japanese Patent Application Laid-Open No. 61-125534

  However, conventional faucets are still easy to manufacture and still have room for improvement in terms of improving heat retention.

  Therefore, an object of the present invention is to solve the above-mentioned problems, and to provide a faucet which is easily manufactured and has improved heat retention.

In order to achieve the above object, a water faucet according to one aspect of the present invention includes a water faucet body through which water flows.
The said faucet main-body part is formed with resin, and is covered with a heat retention material.

The method for producing a faucet according to one aspect of the present invention is a method for producing a faucet formed of a resin and covered with a heat insulating material,
Attaching a faucet body through which water flows to the mold;
Injecting a polymer material into a space formed between the faucet main body and the mold and foaming the same.

  The faucet according to the present invention can be easily manufactured and can improve the heat retention.

The perspective view of the faucet concerning Embodiment 1 of the present invention An exploded view of the faucet of FIG. 1 An exploded view of the faucet of Figure 2 The perspective view which shows schematic structure inside of a faucet unit The perspective view which shows schematic structure of a faucet main-body part A perspective view of FIG. 5 viewed from different angles Cross-sectional view of the faucet body with the hot water / water mixing valve and the switching valve attached Perspective view of thermal insulation The perspective view which looked at the heat insulating material from the different angle The perspective view which shows schematic structure inside of a faucet unit Side view of the body cover Longitudinal sectional view showing a schematic configuration in which the main body cover is cut in the X direction before the top cover is attached to the basic cover Longitudinal sectional view showing a schematic configuration in which the main body cover is cut in the X direction after the top cover is attached to the base cover A perspective view from above showing a schematic configuration of the first handle unit A perspective view from below showing the schematic configuration of the first handle unit Side view of first handle unit viewed from outside in axial direction Sectional view showing a schematic configuration of the handle The perspective view which shows schematic structure of a 1st shaping | molding die A perspective view showing a schematic configuration in which a second molding die is clamped to a first molding die Exemplary flow chart of a method of manufacturing a faucet according to Embodiment 1 of the present invention The perspective view which shows schematic structure of the faucet main part which concerns on Embodiment 2 of this invention The disassembled perspective view of the water discharge block which concerns on Embodiment 2 of this invention Perspective view of the main body of the water discharge block Partially enlarged vertical sectional view showing the water discharge block and peripheral members Top perspective view of the heat insulating material according to Embodiment 2 of the present invention Lower perspective view of thermal insulation The exploded perspective view of FIG. 24 The exploded perspective view of FIG. 25

(Findings that formed the basis of the present invention)
The present inventors obtained the following knowledge as a result of earnestly examining in order to improve heat retention while manufacturing a faucet easily.

  In the conventional water faucet, the water faucet main body is formed of a casting. The faucet is required to be able to be manufactured more easily. Castings generally require large-scale manufacturing equipment, making it difficult to easily manufacture the faucet body. For this reason, it is conceivable to form the faucet main body with a resin which is easy to manufacture, not a casting.

  However, when the faucet body portion is formed of resin, the water inside the faucet body portion freezes and expands, causing a load on the faucet body portion, which may cause breakage. This is a new problem discovered by the present inventors.

  On the other hand, the present inventors have found that covering the faucet body with a heat insulating material suppresses freezing of water inside the faucet body. Thus, the present inventors have found that the faucet can be easily manufactured and that the heat retention can be improved.

  Based on these novel findings, the present inventors arrived at the following invention.

  Hereinafter, embodiments according to the present invention will be described in detail based on the drawings. The present invention is not limited by this embodiment.

(Embodiment 1)
[overall structure]
FIG. 1 is a perspective view of a water faucet 10 according to a first embodiment of the present invention. In the present embodiment, the faucet 10 is a thermostatic faucet attached to the wall of the bathroom. As shown in FIG. 1, the faucet 10 includes a faucet unit 20 and a handle unit 50. The faucet unit 20 is a unit for discharging water. The handle unit 50 is attached to the faucet unit 20, and is a unit capable of changing the water discharge amount, the water discharge direction, and the mixing degree of hot and cold water in the water discharge of the faucet unit 20. Hereinafter, in the drawings, the X, Y, and Z directions indicate the front-rear direction, the left-right direction, and the up-down direction of the faucet 10, respectively.

<Faucet unit>
FIG. 2 is an exploded perspective view of a part of the water faucet unit 20 of FIG. FIG. 3 is an exploded perspective view of the faucet unit 20 of FIG. As shown in FIGS. 2 and 3, the faucet unit 20 includes a faucet body 21, a heat insulating material 22, a support member 23, a stay 24, and a body cover 25.

  The faucet main body portion 21 is a member having a flow path through which water flows, and constitutes a main body portion of the faucet unit 20. The faucet body 21 is covered with a heat insulating material 22. The heat insulating material 22 is a member for preventing the water inside the faucet body 21 from freezing. The support member 23 is a member for supporting the faucet body portion 21 by connecting the faucet body portion 21 and the stay 24. The stay 24 is a member for fixing the faucet main body 21 to the wall of the bathroom. The main body cover 25 is a member that covers the faucet main body 21.

<Faucet body part>
FIG. 4 is a perspective view showing a schematic configuration of the inside of the faucet unit 20 when the faucet body 21 is not covered with the heat insulating material 22. As shown in FIG. As shown in FIG. 4, the faucet body 21 is connected to the hot water supply source 27 and the water supply source 28 by a joint 26. The hot water supply source 27 and the water supply source 28 are hot water and water supply pipes provided inside the wall surface of the bathroom. A water stop valve (not shown) is attached to the joint 26. The shutoff valve is a member for stopping the supply of hot and cold water from the hot water supply source 27 and the water supply source 28.

  As shown in FIGS. 3 and 4, a connection member 29 a different from the joint 26 is attached to the faucet body 21. The shower elbow 29 (FIG. 3) is attached to the connection member 29a. The shower elbow 29 is a member for connecting a shower hose (not shown).

  The hot and cold water mixing valve 30 is attached to the faucet main body 21 from the left side, and the switching valve 31 is attached from the right side. The hot and cold water mixing valve 30 is a member for mixing hot water and water and discharging hot and cold water. The hot and cold water mixing valve 30 is also generally referred to as a thermo cartridge. Hot water is supplied to the hot water mixing valve 30 from the hot water supply source 27 (FIG. 4), and water is supplied from the water supply source 28 (FIG. 4). The switching valve 31 is a member for changing the amount and direction of water spouting. The faucet 10 is called a thermostatic faucet by being equipped with the hot and cold water mixing valve 30 and the switching valve 31.

  As shown in FIG. 4, at the axially outer end of the hot water / water mixing valve 30 and the switching valve 31, a gear portion 32 engaged with the handle unit 50 is provided. In addition, the gear part 32 of the edge part of the axial direction outer side of the hot and cold water mixing valve 30 is abbreviate | omitted in FIG.

  Next, the faucet main body 21 will be described in more detail with reference to FIGS. FIG. 5 is a perspective view showing a schematic configuration of the faucet body 21. As shown in FIG. 6 is a perspective view of the faucet body 21 of FIG. 5 as viewed from different angles. FIG. 7 is a cross-sectional view of the faucet body 21 to which the hot and cold water mixing valve 30 and the switching valve 31 are attached.

  As shown in FIG. 5, the faucet main body portion 21 includes a main pipe portion 210, a hot water supply branch pipe portion 211, a water supply branch pipe portion 212, a water spout water branch pipe portion 213, and a shower spout water branch And a tube portion 214. Furthermore, as shown in FIG. 6, the faucet main body 21 includes a pressure relief branch pipe 215 and a water discharge branch pipe 216.

  The faucet main body 21 provided with these members is integrally formed of resin. That is, the main pipe portion 210, the hot water supply branch pipe portion 211, the water supply branch pipe portion 212, the callan spout water branch pipe portion 213, the shower spout water branch pipe portion 214, the pressure relief branch pipe portion 215, and water draining The branch pipe portion 216 is integrally formed of resin. In the present embodiment, the faucet body 21 is formed by injection molding. The water faucet body 21 is formed of, for example, PPS resin (PPS-GF30). Thus, the faucet body 21 can withstand water pressure.

<Main section>
The main pipe portion 210 is a tubular member formed in a tubular shape. As shown in FIG. 7, the hot and cold water mixing valve 30 and the switching valve 31 are fitted to and attached to the inside of the main pipe portion 210 side by side in the axial direction (Y direction). The inner wall of the main pipe portion 210 forms a space including the hot water / water mixing valve 30 and the switching valve 31 and extends along the axial direction. For resin molding using a mold, the inner wall of the main pipe portion 210 may be inclined so as to slightly extend outward from the axial center side to the end side (for example, the inclination angle is 0.2 ~ 0.5 degrees). Openings for inserting the hot and cold water mixing valve 30 and the switching valve 31 are respectively formed at both ends in the axial direction (Y direction) of the main pipe portion 210. Threaded grooves 217 are formed at the both ends. The screw groove 217 is provided to attach the cap member 33 shown in FIG. The screw groove 217 engages with a screw thread formed on the back side of the cap member 33. The screw groove 217 is integrally formed with the main pipe portion 210 by resin. The cap member 33 is a member for preventing the hot water mixing valve 30 and the switching valve 31 from falling off.

  As shown in FIG. 3, handle units 50 and collars 34 are attached to both axial end portions of the main pipe portion 210 so as to cover the cap member 33. The collar 34 is disposed between the handle unit 50 and the main pipe portion 210.

  As shown in FIGS. 5 to 7, in the present embodiment, ribs 218 a and 218 aa are provided on the outer periphery at both ends of the main pipe portion 210. The rib 218 a is provided at the left end of the main pipe portion 210, and the rib 218 aa is provided at the right end of the main pipe portion 210. The ribs 218 a and 218 aa are adjacent to the screw groove 217 and extend in the circumferential direction closer to the center of the main pipe portion 210 than the screw groove 217. The ribs 218a and 218aa are integrally formed with the main pipe portion 210 by resin.

  In the present embodiment, a rib 218 b is provided at the wall-side end of the hot water supply branch pipe portion 211 and the water supply branch pipe portion 212. The rib 218 b extends in the circumferential direction with respect to the hot water supply branch pipe portion 211 and the water supply branch pipe portion 212. The rib 218 b is integrally formed of resin with the hot water supply branch pipe portion 211 and the water supply branch pipe portion 212.

  As shown in FIG. 7, a rib 218 c is provided on the inner circumferential portion of the main pipe portion 210. The rib 218 c is formed to extend in the circumferential direction between the water mixing valve 30 and the switching valve 31. The rib 218c is integrally formed with the main pipe portion 210 by resin. The rib 218 c is a member for reducing the amount of water kept inside the main pipe portion 210. Thereby, breakage of the main pipe portion 210 due to freezing of water inside the main pipe portion 210 can be prevented.

  As shown in FIG. 5, a hot water inlet 210 a and a water inlet 210 b are formed on the inner circumferential portion of the main pipe portion 210. The hot water inlet 210 a and the hot water inlet 210 b are openings formed around the hot water mixing valve 30 and are in communication with the hot water mixing valve 30. Furthermore, a curry water spout 210 c and a shower spout 210 d are formed on the inner circumferential portion of the main pipe portion 210. The callan spout 210 c and the shower spout 210 d are openings formed around the switching valve 31 and communicate with the switching valve 31. As shown in FIG. 4, the water spouting port 210 c and the shower spouting port 210 d are provided axially inside the outer peripheral portion at the axial direction right end portion of the main pipe portion 210. The outer peripheral portion connects the support member 23. In the present embodiment, the outer peripheral portion is a rib 218aa.

  As shown in FIG. 6, a fastening portion 219 is provided below the main pipe portion 210. The fastening portion 219 is a member for attaching the main body cover 25 (FIG. 2). Specifically, the fastening portion 219 is a member in which a hole for fastening a screw is formed.

<Branch pipe for hot water supply>
As shown in FIG. 5, the hot water supply branch pipe portion 211 is a tubular member formed by branching from a position including the hot water inlet 210 a of the main pipe portion 210. The hot water supply branch pipe portion 211 internally forms a flow path for supplying the hot water from the hot water supply source 27 (FIG. 4) to the hot water inlet 210 a. That is, the hot water supply branch pipe portion 211 connects the hot water supply source 27 and the hot water inlet 210a of the main pipe portion 210, and forms a flow path through which the hot water flows.

<Water supply branch pipe>
The water supply branch pipe portion 212 is a tubular member formed to branch from a position including the water inlet 210 b of the main pipe portion. The water supply branch pipe portion 212 internally forms a flow path for supplying the water from the water supply source 28 (FIG. 4) to the water inlet 210b. That is, the water supply branch pipe portion 212 connects the water supply source 28 and the water inlet 210b of the main pipe portion 210, and forms a flow path through which water flows.

  The hot water supply branch pipe portion 211 and the water supply branch pipe portion 212 are provided in line with the main pipe portion 210 in the axial direction (Y direction).

<Branch pipe for callan spouting>
The callan spout branch pipe portion 213 is a tubular member formed by branching from a position including the callan spout 210 c of the main pipe portion 210. The callan spouting branch pipe portion 213 internally forms a flow path for spouting hot and cold water. In the present embodiment, the branch pipe unit for callan spouting water 213 is a water discharge pipe that performs the callan spouting water. As shown in FIG. 6, the callan spout water branch pipe portion 213 is provided at the central portion of the main pipe portion 210. Further, a straightening portion 213a is formed in the branch pipe portion 213 for water discharge. The straightening unit 213a is a member for straightening the water to be discharged. The straightening unit 213a is integrally formed with the callan spout water branch pipe portion 213 by a resin.

<Train pipe for shower water discharge>
As shown in FIG. 5, the shower water discharge branch pipe 214 is a tubular member formed by branching from a position including the shower water discharge port 210 d of the main pipe 210. The shower spout branch pipe portion 214 extends toward the wall of the bathroom and forms a flow path for spouting hot and cold water therein. In the present embodiment, the branch pipe portion for shower water discharge 214 is a water discharge pipe for performing shower water discharge. As shown in FIG. 4, a connecting member 29 a is attached to the end on the wall side of the shower water discharge branch portion 214.

<Pressure relief branch part>
As shown in FIG. 6, the pressure relief branch pipe portion 215 is a tubular member formed by branching from the hot water supply branch pipe portion 211. A pressure relief valve (not shown) is attached to the pressure relief branch pipe 215. The pressure relief valve is a valve that is opened when a pressure higher than a predetermined level is applied, and releases the pressure in the faucet body 21 to the outside.

<Water drainage branch pipe part>
The water draining branch pipe portion 216 is a tubular member formed by branching from the water supply branch pipe portion 212. A drainage plug (not shown) is attached to the drainage branch pipe portion 216. The water draining plug drains water around the water draining branch pipe portion 216 by opening the water draining branch pipe portion 216, and the air inside the water tap main body portion 21 is injected by injecting air into the inside. It is a member for pulling out. Thereby, it can prevent that the water inside the faucet main-body part 21 freezes.

<Heat insulation material>
The heat insulating material 22 is a member that covers the outer periphery of the faucet body 21 in order to prevent the water inside the faucet body 21 from freezing. The heat insulating material 22 closely covers, for example, the outer periphery of the faucet body 21. As shown in FIGS. 2 and 3, the heat insulating material 22 covers the outer periphery of the main pipe portion 210 along the axial direction of the main pipe portion 210, and covers the rib 218a to the vicinity of the rib 218aa. The thickness of the heat insulating material 22 covering the outer periphery of the main pipe portion 210 is, for example, 5 mm. Furthermore, the heat insulating material 22 includes a hot water supply branch pipe portion 211, a water supply branch pipe portion 212, a connection portion between the hot water supply branch pipe portion 211 and the main pipe portion 210, and a water supply branch pipe portion 212. It covers the connection with the main pipe 210. Further, the heat insulating material 22 is provided in a space formed between the hot water supply branch pipe portion 211 and the water supply branch pipe portion 212.

  FIG. 8 is a perspective view of the heat insulating material 22. FIG. FIG. 9 is a perspective view of the heat insulating material 22 as viewed from different angles. As shown in FIGS. 8 and 9, the heat insulating material 22 has a plurality of openings 220, 221, 222, 223, 224, 225, and 226. The faucet main body 21 is disposed inside the heat insulating material 22. The hot water supply branch pipe portion 211 is disposed at the opening 220. The water supply branch pipe portion 212 is disposed at the opening 221. At the opening 222, a branch pipe portion 213 for water discharge is disposed. The shower spout branch pipe portion 214 is disposed at the opening 223. A pressure relief branch pipe 215 is disposed in the opening 224. In the opening 225, a water draining branch pipe portion 216 is disposed. The fastening portion 219 is disposed in the opening 226.

  The material, thickness, and the like of the heat insulating material 22 are selected according to the use environment. The heat insulating material 22 preferably has, for example, a thermal conductivity of 0.05 W / m · K or less. More preferably, the heat insulating material 22 has a thermal conductivity of 0.03 W / m · K or less. In the present embodiment, the heat insulating material 22 includes either urethane foam or polystyrene foam.

<Supporting member>
As shown in FIG. 4, the support member 23 supports the faucet body 21 by fixing the faucet body 21 to the stay 24. Specifically, the supporting member 23 connects the outer periphery of the main pipe portion 210 on the side (left side) to which the hot and cold water mixing valve 30 is attached (left side) and the axially opposite side (right side) to the bathroom wall side. The main pipe portion 210 of the portion 21 is supported. Here, "connected to the wall of the bathroom" means directly or indirectly to the wall of the bathroom or a member fixed to the wall of the bathroom (including the hot water supply source 27 and the water supply source 28). It means to connect. The support member 23 supports the faucet body 21 so as to keep it horizontal. In the present embodiment, the support member 23 connects the outer peripheral portion of the main pipe portion 210 to the stay 24 on the wall side of the bathroom. More specifically, the support member 23 connects the collar 34 attached to the outer peripheral portion of the main pipe portion 210 to the stay 24 on the wall side of the bathroom. Thereby, the support member 23 indirectly connects the outer peripheral portion of the main pipe portion 210 to the wall side of the bathroom through the collar 34.

  A recess 23 a is provided on the upper portion of the support member 23. The recess 23a is provided to fit the shower elbow 29 (FIG. 3). When the shower hose is connected on the right side of the faucet body portion 21, the shower elbow 29 is fitted and attached to the recess 23 a of the support member 23. Thereby, as shown in FIG. 2, the shower hose can be connected to the shower elbow 29 on the right side of the faucet body 21. In addition, when connecting a shower hose by the left side of the faucet main-body part 21, the supporting member 35 mentioned later is used. The support member 23 is formed of, for example, an ABS resin.

<Stay>
The stay 24 is a member fixed to the wall of the bathroom and holding the faucet body 21. As shown in FIG. 3, the stay 24 has an opening for connecting the joint 26 with the hot water supply 27 and the water supply 28. The support member 23 is removably attached to the right end of the stay 24. A support member 35 is attached to the left end of the stay 24. The support member 35 is a member for fixing the shower elbow 29 </ b> A on the left side of the faucet body portion 21. A recess 35 a is provided on the upper portion of the support member 35.

  FIG. 10 is a perspective view showing a schematic configuration of the inside of the faucet unit 20 when the shower hose is connected on the left side of the faucet body 21. As shown in FIG. When the shower hose is connected on the left side of the faucet main body 21, as shown in FIG. 10, the shower elbow 29A is fitted and attached to the support member 35 attached to the stay 24. The shower elbow 29A is connected to the shower water discharge branch pipe portion 214 via the connection member 29a.

<Main body cover>
As shown in FIGS. 2 and 3, the body cover 25 has a top cover 250 and a base cover 251. The body cover 25 is attached to the stay 24. The body cover 25 is attached to the faucet body 21. Thereby, the main body cover 25 and the faucet main body 21 can be integrally used. The main body cover 25 is formed of resin. The top cover 250 is attached so as to cover the top of the faucet body 21. The base cover 251 has left and right side surfaces and a bottom surface, and is attached so as to cover the lower part of the water faucet body 21. The base cover 251 is formed separately from the top cover 250 and is fitted to the top cover 250. In the present embodiment, the top cover 250 is formed of an acrylic resin (PMMA resin), and the base cover 251 is formed of an ABS resin.

<Top board cover>
FIG. 11 is a side view of the main body cover 25. As shown in FIG. As shown in FIG. 11, the top cover 250 has a collar 252. The ridge portion 252 forms a slope inclined downward, that is, a slope inclined in the −Z direction with respect to the XY plane. The flange portion 252 is formed to project obliquely downward from the front end (the end in the + X direction) of the base cover 251 described later.

  FIG. 12A is a longitudinal cross-sectional view showing a schematic configuration in which the main body cover 25 before attaching the top cover 250 to the base cover 251 is cut in the X direction at the left end (the end in the −Y direction). FIG. 12B is a longitudinal sectional view showing a schematic configuration in which the main body cover 25 after the top cover 250 is attached to the base cover 251 is cut in the X direction at the left end. The right end (the end in the + Y direction) of the main body cover 25 has the same configuration as that of the left end, and thus the description thereof is omitted.

  As shown in FIGS. 12A and 12B, the top cover 250 includes fitting portions 253a and 253b and lock fitting portions 254a and 254b.

  The fitting portion 253a is formed forward (in the + X direction) of the fitting portion 253b. Specifically, the fitting portion 253 a is formed on the back side of the flange portion 252 of the top cover 250. A recess 253aa is formed in the fitting portion 253a. The recess 253 aa is formed to extend rearward (−X direction) from the back side of the ridge portion 252. The fitting portion 253 b is formed extending from the left end portion of the top cover 250 to the right (+ Y direction). The lower end (end in the −Z direction) of the fitting portion 253 b is formed to extend rearward. That is, the fitting portion 253b is formed in an L shape when viewed from the right side.

  The lock fitting portions 254 a and 254 b are formed extending from the left end of the top cover 250 to the right. The lock fitting portion 254a has a guide 254aa at its rear portion. The guide 254aa forms a slope inclined in the + Z direction with respect to the XY plane. The guide 254 aa is a member for facilitating the top cover 250 to slide and fit on the base cover 251. The lock fitting portion 254b has a first fitting portion 254ba and a second fitting portion 254bb. The first fitting portion 254ba is formed above the second fitting portion 254bb. The second fitting portion 254bb is formed to extend downward from the left end of the first fitting portion 254ba. The second fitting portion 254bb is formed to extend rearward from the lower end portion. That is, the second fitting portion 254bb is formed in an L shape as viewed from the right side.

<Basic cover>
As shown in FIG. 11, a curved surface curved upward is formed at the front end of the base cover 251. As shown in FIGS. 12A and 12B, a collar 34 is fitted on the left side surface of the base cover 251. The collar 34 forms a lock fitting portion 256a at the top. The lock fitting portion 256 a is formed to extend from the upper end of the collar 34 to the right. The lower end portion of the lock fitting portion 256a is formed to extend rearward. That is, the lock fitting portion 256a is formed in an L shape as viewed from the right side.

  The base cover 251 has fitting portions 255a and 255b and a lock fitting portion 256b. The fitting portion 255a is formed forward of the fitting portion 255b. Specifically, the fitting portion 255 a is formed to extend upward (in the + Z direction) from the lower surface of the base cover 251. A protrusion 255 aa is formed on the upper end portion (the end portion in the + Z direction) of the fitting portion 255 a toward the front. The fitting portion 255 b is formed to extend from the upper end portion of the left side surface of the base cover 251 to the right. The upper end portion of the fitting portion 255 b is formed to extend forward. That is, the fitting portion 255 a is formed in an L shape with the −Z direction upward when viewed from the right side.

  The lock fitting portion 256 b is formed to extend from the upper end portion of the left side surface of the base cover 251 to the right. The upper end portion of the lock fitting portion 256b has a first fitting portion 256ba and a second fitting portion 256bb. The first fitting portion 256ba and the second fitting portion 256bb are formed to extend forward. The first fitting portion 256ba is formed above the second fitting portion 256bb. The first fitting portion 256ba has a guide 256baa at the front portion. The guide 256 baa forms a slope inclined in the + Z direction with respect to the XY plane. The guide 256 baa is a member for facilitating the top cover 250 to slide and fit on the base cover 251.

  Next, how to attach the top cover 250 to the base cover 251 will be described. As shown in FIG. 12A, the top cover 250 is attached to the base cover 251 from above. Thereafter, the top cover 250 is slid rearward with respect to the base cover 251 to be fitted. At this time, the upper end portion of the lock fitting portion 256a slides and moves with respect to the guide 254aa of the lock fitting portion 254a, and the lower end of the first fitting portion 254ba with respect to the guide 256baa of the first fitting portion 256ba. Department slides and moves.

  The top cover 250 is further slid rearward with respect to the base cover 251 and fitted. As a result, as shown in FIG. 12B, the top cover 250 and the base cover 251 are fitted. Thereby, the top cover 250 and the base cover 251 can be used integrally.

  The protrusion 255 aa of the fitting portion 255 a fits in the recess 253 aa of the fitting portion 253 a. Thereby, the movement of the top cover 250 with respect to the base cover 251 to the left, right, back, and upward is limited. The upper end portion of the fitting portion 255b is disposed on the lower end portion of the fitting portion 253b. This restricts the rearward and upward movement of the top cover 250 relative to the base cover 251.

  The lock fitting portion 254a is disposed at the lower end of the lock fitting portion 256a at the rear of the lock fitting portion 256a. This restricts the forward and downward movement of the top cover 250 relative to the base cover 251. The first fitting portion 254ba is disposed on the first fitting portion 256ba behind the guide 256baa of the first fitting portion 256ba. This restricts the forward and downward movement of the top cover 250 relative to the base cover 251. The second fitting portion 256bb is disposed on the lower end portion of the second fitting portion 254bb. This restricts the rearward and upward movement of the top cover 250 relative to the base cover 251.

<Handle unit>
As shown in FIG. 1, the handle unit 50 includes a first handle unit 50 a and a second handle unit 50 b.

  In the present embodiment, the first handle unit 50a is a unit for adjusting the temperature of the water discharge. Specifically, the temperature of the water discharge is adjusted by rotating the first handle unit 50a in the R direction. For example, the temperature of the water discharge is lowered by the rotation downward from the reference position, and the temperature of the water discharge is raised by the rotation upward from the reference position. Here, the R direction indicates a direction of rotation with the axis of the main pipe portion 210 as a rotation axis. The reference position indicates a position where the upper surface of the handle unit 50 is flush with the upper surface of the top cover 250.

  When the first handle unit 50a is at the reference position, the temperature of the water discharge is set to a predetermined temperature. The predetermined temperature is, for example, 40 degrees. When the first handle unit 50a rotates upward from the reference position, the hot and cold water mixing valve 30 (FIG. 3) rotates upward along with the first handle unit 50a. As a result, the ratio of the amount of hot water to the amount of water increases, and the temperature of the spouted water rises above a predetermined temperature. On the other hand, when the first handle unit 50a is rotated downward from the reference position, the hot and cold water mixing valve 30 is rotated downward along with the first handle unit 50a. As a result, the ratio of the amount of water to the amount of hot water increases, and the temperature of the spouting water falls below a predetermined temperature.

  The second handle unit 50b is a unit for changing the water discharge direction (Karan water discharge or shower water discharge) and the water discharge amount by rotation. Specifically, the water discharge direction is changed by changing the rotation direction R from the reference position in the second handle unit 50b. For example, water discharge from the reference position is performed downward from the reference position, and water discharge is performed from the water discharge branch pipe portion 213, and rotation from the reference position upward to discharge water from the shower water discharge pipe portion 214. Furthermore, the amount of water discharge is changed by changing the degree of rotation from the reference position. For example, when the rotation amount from the reference position of the second handle unit 50b is increased, the water discharge amount increases.

  When the second handle unit 50b is at the reference position, both the callan spout 210c (FIG. 4) and the shower spout 210d (FIG. 4) are not in communication with the switching valve 31 (FIG. 3). I can not do it. When the second handle unit 50b rotates upward from the reference position, the switching valve 31 rotates upward together with the second handle unit 50b. As a result, the switching valve 31 and the shower spout 210 d communicate with each other to perform shower spouting. When the second handle unit 50b is further rotated upward, the switching valve 31 and the shower spout 210d communicate with each other in a wider area, so the amount of shower spout increases.

  On the other hand, when the second handle unit 50b rotates downward from the reference position, the switching valve 31 rotates downward together with the second handle unit 50b. As a result, the switching valve 31 and the water discharge port 210c communicate with each other, and water discharge is performed. When the second handle unit 50b is further rotated downward, the switching valve 31 and the callan spout 210c communicate with each other in a wider area, so the amount of callan spout increases.

  As shown in FIG. 3, the handle unit 50 is attached to the faucet body 21. Specifically, the handle unit 50 is attached to both ends in the axial direction (Y direction) of the main pipe portion 210 of the faucet body portion 21.

  Next, the first handle unit 50a will be described in detail. In addition, since the 2nd handle unit 50b is the structure similar to the principal part of the 1st handle unit 50a, description is abbreviate | omitted. FIG. 13 is a perspective view from above showing a schematic configuration of the first handle unit 50a. FIG. 14 is a perspective view from below showing a schematic configuration of the first handle unit 50a.

  As shown in FIGS. 13 and 14, the first handle unit 50 a includes a handle 51 and a transmission member 52. The handle 51 is a member for operating the handle unit 50. The transmission member 52 is connected to the faucet unit 20 and transmits the force of the handle 51 to the faucet unit 20. The handle 51 (a base portion 56 described later) and the transmission member 52 are fixed to the water faucet unit 20 from outside in the axial direction, for example, by screws 53. Furthermore, the outer lid 54 is attached to the handle 51 from the axially outer side so as to cover the screw 53.

<Handle>
As shown in FIG. 3, the handle 51 is provided at both ends of the main pipe portion 210 and operates the hot and cold water mixing valve 30 and the switching valve 31. In the present embodiment, the handle 51 of the first handle unit 50a operates the hot and cold water mixing valve 30, and the handle 51 of the second handle unit 50b operates the switching valve 31.

  As shown in FIGS. 13 and 14, the handle 51 has a top plate portion 55 constituting an upper surface, and a base portion 56 formed separately from the top plate portion 55. The handle 51 is formed of resin. In the present embodiment, the top plate portion 55 is formed of an acrylic resin (PMMA resin), and the base portion 56 is formed of an ABS resin.

<Top plate>
As shown in FIG. 1, the top plate portion 55 of the handle 51 is formed to be flush with the top plate cover 250 in a state in which the handle unit 50 is attached to the faucet unit 20. As shown in FIG. 13, the top plate 55 is formed to cover the upper side of the transmission member 52.

  FIG. 15 is a side view of the first handle unit 50a as viewed from the outside in the axial direction. As shown in FIG. 15, the top plate 55 has a handle collar 57. The handle collar 57 forms a slope inclined in the −Z direction with respect to the XY plane. The handle collar 57 is formed to project obliquely downward from the front end of the base 56.

  As shown in FIG. 14, on the back side of the top plate 55, a plurality of protruding pieces 55a, 55b, 55c are formed. The protrusion 55 a is formed to extend in the axial direction (Y direction) on the back side of the rear portion of the top plate 55. The lower end portion of the protrusion 55a has a slide portion 55aa. Slide portion 55aa is formed to extend rearward. The protruding piece 55 b is formed to extend in the axial direction on the back side of the handle collar 57 of the top plate 55. The lower end portion of the projecting piece 55b has a slide portion 55ba. The slide portion 55 ba is formed to extend obliquely downward in parallel with the slope of the handle collar portion 57. The protrusion 55 c is formed on the back side of the top plate 55 so as to extend from the rear portion to the handle collar 57.

<Basic part>
As shown in FIG. 13, the base portion 56 is formed to cover the left side and the lower side of the transmission member 52. At the upper end portion of the base portion 56, plate-like portions 56a, 56b and 56c are provided. The plate-like portions 56a, 56b, 56c are formed extending inward. The plate-like portion 56 a is formed to extend forward from the rear end (the end in the −X direction). The plate-like portion 56a is fitted on the slide portion 55aa. The plate-like portion 56 b is formed to extend rearward from the front end in parallel with the slope of the handle collar 57. The plate-like portion 56b is fitted on the slide portion 55ba. The plate-like portion 56 c is formed extending from the left end toward the right. The plate-like portion 56 c is provided with an opening 58. The opening 58 engages with the projection 55c.

  Next, how to attach the top plate 55 to the base 56 will be described. FIG. 16 is a cross-sectional view showing a schematic configuration of the handle 51 of the first handle unit 50a. From the state shown in FIG. 13, the top plate portion 55 is slid in the Y direction with respect to the base portion 56 and fitted. At this time, the plate portion 56a slides and moves on the slide portion 55aa, and the plate portion 56b slides and moves on the slide portion 55ba. The top plate portion 55 is further slid relative to the base portion 56, and the projection 55c is fitted into the opening 58 of the plate portion 56c. As a result, as shown in FIG. 16, the top plate 55 and the base portion 56 are in a fitted state.

  The plate-like portion 56a is fitted on the slide portion 55aa, and the plate-like portion 56b is fitted on the slide portion 55ba, whereby the movement of the top plate 55 in the rotational direction with respect to the base portion 56 is limited. Further, the projection piece 55 c is engaged with the opening 58 to restrict the axial movement of the top plate portion 55 with respect to the base portion 56. Thereby, the top plate 55 and the base portion 56 can be used integrally.

<Transmission member>
As shown in FIG. 14, the transmission member 52 is provided with a safety lock 60. The safety lock 60 fits into the opening 59 of the base 56. The safety lock 60 is a member for preventing the first handle unit 50a from rotating to the high temperature side. A gear portion 61 is provided inside the transmission member 52. When the gear portion 61 of the transmission member 52 and the gear portion 32 of the hot and cold water mixing valve 30 engage in the rotational direction, the force in the rotational direction applied to the handle 51 is transmitted to the hot and cold water mixing valve 30 through the gear portion 61. Ru.

  Next, the manufacturing method of the faucet 10 covered with the heat insulating material 22 is demonstrated using FIGS. 17-19. FIG. 17 is a perspective view showing a schematic configuration of the first molding die 71. As shown in FIG. FIG. 18 is a perspective view showing a schematic configuration in which the second molding die 72 is clamped to the first molding die 71. As shown in FIG. FIG. 19 is an exemplary flowchart of a method of manufacturing the faucet 10. As shown in FIG. 18, the mold 70 includes a first mold 71 and a second mold 72. As shown in FIG. 17, the first molding die 71 is provided with a recess 73. The faucet main body 21 is attached to the recess 73. With the faucet body 21 attached to the recess 73, a cavity is formed between the recess 73 and the faucet body 21. The cavity is a space into which the polymer material is injected. In addition, a communication hole 74 for injecting a polymer material is formed in the first molding die 71. Similarly, in the second mold 72, a recess 73 to which the faucet body 21 is attached and a communication hole 74 for injecting a polymer material are formed.

  As shown in FIG. 19, in step ST10, the faucet body portion 21 is attached to the mold 70 (first molding die 71) (attachment step). Further, the second mold 72 is clamped to the first mold 71.

  In step ST20, a polymer material is injected into the space formed between the faucet body 21 and the mold 70 to foam it (injection / foaming process). Specifically, a cavity formed between the faucet main body 21 and the first molding die 71 from the communication hole 74 formed in the first molding die 71 and the second molding die 72, and water A polymeric material is injected into the cavity formed between the plug body 21 and the second mold 72 for foaming.

  In the present embodiment, the polymer material is a urethane resin. Specifically, the urethane resin is foamed by adding a foaming agent to the urethane resin. After foaming, the faucet body 21 is removed from the mold 70. As described above, the faucet body 21 is covered with the foamed urethane resin (foamed urethane).

[effect]
The water faucet 10 according to the present embodiment includes the main pipe portion 210, the hot water supply branch pipe portion 211, and the water supply branch pipe portion 212. In the main pipe portion 210, a hot water / water mixing valve 30 for mixing hot water and water, and a switching valve 31 for changing the discharge amount and discharge direction of hot water / water mixed by the hot water mixing valve 30 are installed inside in an axial direction. The main pipe portion 210 is formed in a tubular shape, and forms a hot water inlet 210 a and a water inlet 210 b communicating with the hot and cold water mixing valve 30. The main pipe portion 210, the hot water supply branch pipe portion 211, and the water supply branch pipe portion 212 are integrally formed of resin.

  According to this configuration, hot water and water can be made to flow from the hot water supply source 27 and the water supply source 28 directly to the hot and cold water mixing valve 30. Thus, unlike the case where the faucet main body 21 is covered with the outer cylinder and the flow path is formed between the faucet main body 21 and the outer cylinder, the flow path is formed on the outer peripheral portion of the faucet main body 21 The faucet 10 can be easily manufactured because it is not necessary. For this reason, the cost of the faucet 10 can be suppressed and manufactured. Further, the faucet 10 can be easily manufactured by integrally forming the main pipe portion 210, the hot water supply branch pipe portion 211, and the water supply branch pipe portion 212. For this reason, the cost of the faucet 10 can be suppressed and manufactured. Further, by forming the main pipe portion 210, the hot water supply branch pipe portion 211, and the water supply branch pipe portion 212 with resin, the cost of the faucet main body portion 21 can be suppressed and manufactured rather than formed of metal. Can.

  Further, in the present embodiment, the main pipe portion 210 is formed with a water spout 210 c and a shower spout 210 d communicating with the switching valve 31. Furthermore, the faucet 10 includes a branch pipe part 213 for water discharge and a branch pipe part 214 for shower water discharge. The callan spout water branch pipe portion 213 branches from a position including the callan spout 210 c of the main pipe portion 210, and forms a flow path for discharging hot and cold water inside. The shower spout branch pipe portion 214 branches from a position including the shower spout 210 d of the main pipe portion 210, and forms a flow path for spouting hot and cold water inside. The main pipe portion 210, the hot water supply branch pipe portion 211, the water supply branch pipe portion 212, the callan spout water branch pipe portion 213, and the shower spout water branch pipe portion 214 are integrally formed of resin.

  According to this configuration, the main pipe portion 210, the hot water supply branch pipe portion 211, the water supply branch pipe portion 212, the callan spout water branch pipe portion 213, and the shower spout water branch pipe portion 214 are integrally formed of resin. Thus, the faucet 10 can be manufactured more easily. For this reason, the cost of the faucet 10 can be suppressed more and it can manufacture.

  Further, in the present embodiment, the callan spout water branch pipe portion 213 is a water discharge pipe for performing water spouting, and the straightening portion 213a is integrally formed with the callan spout water branch pipe portion 213 by a resin.

  According to this configuration, by forming the straightening unit 213a integrally with the branch pipe unit for currant water spout 213 using a resin, there is no need to form the straightening unit 213a as a separate member, so the faucet 10 can be manufactured more easily. can do. For this reason, the cost of the faucet 10 can be suppressed more and it can manufacture. Moreover, the effort which mounts the rectification part 213a can be saved.

  Further, in the present embodiment, openings for inserting the hot and cold water mixing valve 30 and the switching valve 31 are respectively formed at both axial end portions of the main pipe portion 210. Cap members 33 for preventing the hot water mixing valve 30 and the switching valve 31 from falling off are attached to the both ends. A screw groove 217 screwed with the screw thread of the cap member 33 is integrally formed with the main pipe portion 210 by resin.

  According to this configuration, the cap member 33 can be easily attached to the main pipe portion 210. Further, the faucet 10 can be more easily manufactured by integrally forming the screw groove 217 with the main pipe portion 210 by using a resin. For this reason, the cost of the faucet 10 can be suppressed more and it can manufacture.

  Further, in the present embodiment, on the outer periphery of the main pipe portion 210, ribs 218a and 218aa extending in the circumferential direction are provided adjacent to the center of the main pipe portion 210 with respect to the screw groove 217, and the ribs 218a and 218aa are The main pipe portion 210 and the resin are integrally formed.

  According to this configuration, when attaching the cap member 33 to the main pipe portion 210, since the cap member 33 is prevented from rotating by the ribs 218a and 218aa, the cap member 33 can be more reliably fastened to the main pipe portion 210. . For this reason, dropping off of the hot and cold water mixing valve 30 and the switching valve 31 can be further prevented. In addition, when the main pipe portion 210 is covered with the heat insulating material 22, the heat insulating material 22 can be prevented from covering the screw groove 217. Therefore, the main pipe portion 210 can be easily covered with the heat insulating material 22.

  Further, in the present embodiment, a rib 218c extending in the circumferential direction is provided between the water mixing valve 30 and the switching valve 31 on the inner peripheral portion of the main pipe portion 210, and the rib 218c is made of the main pipe portion 210 and resin. Are integrally formed.

  According to this configuration, by providing the rib 218 c between the hot water / water mixing valve 30 and the switching valve 31, it is possible to reduce the space in which water is accumulated between the hot water / water mixing valve 30 and the switching valve 31. Thereby, when water freezes, it can suppress expanding and the main pipe part 210 breaking. In addition, the faucet 10 can be more easily manufactured by integrally forming the rib 218c with the main pipe portion 210 by using a resin. For this reason, the cost of the faucet 10 can be suppressed more and it can manufacture.

  Further, in the present embodiment, the water faucet 10 includes a pressure relief branch pipe portion 215 to which a pressure relief valve is attached, and a water drainage branch pipe portion 216 to which a water drainage plug is attached. The main pipe portion 210, the hot water supply branch pipe portion 211, the water supply branch pipe portion 212, the pressure relief branch pipe portion 215, and the water discharge branch pipe portion 216 are integrally formed of resin.

  According to this configuration, the main pipe portion 210, the hot water supply branch pipe portion 211, the water supply branch pipe portion 212, the pressure relief branch pipe portion 215, and the water draining branch pipe portion 216 are integrally formed of resin. , The faucet 10 can be manufactured more easily. For this reason, the cost of the faucet 10 can be suppressed more and it can manufacture.

  According to the faucet 10 according to the present embodiment, the faucet body portion 21 including the main pipe portion 210, the hot water supply branch pipe portion 211, and the water supply branch pipe portion 212, and the support member 23 are provided. . In the main pipe portion 210, a hot water / water mixing valve 30 for mixing hot water and water, and a switching valve 31 for changing the spouting amount and the spouting direction of hot water / water mixed by the hot water mixing valve 30 are axially aligned and mounted inside. The main pipe portion 210 is formed in a tubular shape, and forms a hot water inlet 210 a and a water inlet 210 b communicating with the hot and cold water mixing valve 30. The hot water supply branch pipe portion 211 branches from a position including the hot water inlet 210a of the main pipe portion 210, and internally forms a flow path for supplying hot water from the hot water supply source 27 to the hot water inlet 210a. The water supply branch pipe portion 212 branches from a position including the water inlet 210b of the main pipe portion 210, and internally forms a flow path for supplying the water from the water supply source 28 to the water inlet 210b. The support member 23 supports the main pipe portion 210 by connecting the outer peripheral portion on the side opposite to the side where the hot water / water mixing valve 30 is attached in the main pipe portion 210 to the wall side of the bathroom.

  According to this configuration, hot water and water can be made to flow from the hot water supply source 27 and the water supply source 28 directly to the hot and cold water mixing valve 30. Thus, unlike the case where the faucet main body 21 is covered with the outer cylinder and the flow path is formed between the faucet main body 21 and the outer cylinder, the flow path is formed on the outer peripheral portion of the faucet main body 21 The faucet 10 can be easily manufactured because it is not necessary. For this reason, the cost of the faucet 10 can be suppressed and manufactured.

  Further, the hot water supply source 27 and the water supply source 28 are biased to the side on which the hot and cold water mixing valve 30 is attached in order to connect with the hot water inlet 210a and the hot water inlet 210b communicating with the hot water mixing valve 30. On the other hand, since the supporting member 23 supports the side opposite to the side where the hot and cold water mixing valve 30 is attached in the main pipe portion 210, ie, the side where the switching valve 31 is attached, the bathroom Support the load on the wall side of the For this reason, the position of the faucet body 21 can be held at a predetermined position.

  In the faucet 10 according to the present embodiment, the stay 24 fixed to the wall of the bathroom and holding the faucet main body 21 is provided, and the support member 23 connects the outer peripheral portion of the main pipe portion 210 to the stay 24.

  According to this configuration, by attaching the support member 23 to the stay 24, the main pipe portion 210 and the wall of the bathroom can be more easily connected.

  Further, in the present embodiment, the faucet body 21 is integrally formed of resin.

  According to this configuration, by integrally forming the faucet body portion 21, the faucet 10 can be manufactured more easily. Further, by forming the faucet main body portion 21 with a resin, it is possible to reduce the cost of the faucet main body portion 21 more than when forming it with metal, and manufacture.

  Further, in the present embodiment, a water discharge port (shower water discharge port 210 d) communicating with the switching valve 31 is provided axially inside the outer peripheral portion of the main pipe portion 210. The faucet main body portion 21 is branched from the position including the water discharge port (the shower water discharge port 210d) of the main pipe portion 210, extends toward the wall of the bathroom, and has a flow path formed therein for discharging hot and cold water A branch pipe (a shower spout branch pipe 214) is provided. A shower elbow 29, 29A connected to a shower hose is attached to the wall-side end of the water discharge branch pipe portion (shower water discharge branch pipe portion 214). On the upper part of the support member 23, a recess 23a in which the shower elbow 29 is fitted is provided.

  According to this configuration, since the shower elbows 29 and 29A can be attached to the recess 23a of the support member 23, the shower elbows 29 and 29A can be more easily held.

  Further, in the present embodiment, the main pipe portion 210 is disposed between the handle unit 50 and the handle unit 50 and the main pipe portion 210 at the end portion on the side opposite to the side where the hot water mixing valve 30 is attached. Collar 34 is attached. The support member 23 connects the collar 34 to the wall of the bathroom.

  According to this configuration, in order to connect the main pipe portion 210 and the wall side of the bathroom to support the main pipe portion 210, it is not necessary to newly provide a member other than the collar 34, so the number of parts can be reduced.

  According to the faucet 10 which concerns on this embodiment, the faucet main-body part 21 which water passes inside is provided, and the faucet main-body part 21 is formed with resin, and is covered with a heat retention material.

  According to this structure, it can suppress that the water inside the faucet main-body part 21 freezes. For this reason, damage to the faucet main body 21 due to freezing and expansion of water can be prevented.

  Further, in the present embodiment, the faucet main body portion 21 includes the main pipe portion 210, the hot water supply branch pipe portion 211, and the water supply branch pipe portion 212. The main pipe portion 210 is formed in a tubular shape, and a hot water / water mixing valve 30 for mixing hot water and water, and a switching valve 31 for changing the water discharge amount and the water discharging direction of hot water mixed by the hot water mixing valve 30 are installed inside . The hot water supply branch pipe portion 211 connects the hot water supply source 27 and the main pipe portion 210, and forms a flow path through which the hot water flows. The water supply branch pipe portion 212 connects the water supply source 28 and the main pipe portion 210, and forms a flow path through which water flows.

  According to this configuration, it is possible to suppress freezing of water inside the faucet main body 21 provided with the main pipe portion 210, the hot water supply branch pipe portion 211, and the water supply branch pipe portion 212. For this reason, it can prevent that the faucet main-body part 21 is damaged.

  Further, in the present embodiment, the hot and cold water mixing valve 30 and the switching valve 31 are attached side by side in the axial direction of the main pipe portion 210. The main pipe portion 210 has a hot water inlet 210 a and a water inlet 210 b in communication with the hot water mixing valve 30. The hot water supply branch pipe portion 211 connects the hot water supply source 27 and the hot water inlet 210 a of the main pipe portion 210. The water supply branch pipe portion 212 connects the water supply source 28 and the water inlet 210 b of the main pipe portion 210.

  According to this configuration, hot water and water can be made to flow from the hot water supply source 27 and the water supply source 28 directly to the hot and cold water mixing valve 30. Thus, unlike the case where the faucet main body 21 is covered with the outer cylinder and the flow path is formed between the faucet main body 21 and the outer cylinder, the flow path is formed on the outer peripheral portion of the faucet main body 21 The faucet 10 can be easily manufactured because it is not necessary. For this reason, the cost of the faucet 10 can be suppressed more and it can manufacture.

  Further, in the present embodiment, the hot water supply branch pipe portion 211 and the water supply branch pipe portion 212 are provided side by side in the axial direction with respect to the main pipe portion 210, and the hot water supply branch pipe portion 211 and the water supply branch A heat insulating material 22 is provided in a space formed between the pipe 212 and the pipe 212.

  According to this configuration, the water inside the hot water supply branch pipe portion 211 and the water supply branch pipe portion 212 is particularly easy to freeze, so it is possible to further suppress freezing of the water of the portion. Therefore, breakage of the faucet main body 21 can be further prevented.

  Further, in the present embodiment, at least one of the main pipe portion 210, the hot water supply branch pipe portion 211, and the water supply branch pipe portion 212, a rib extending in the circumferential direction is formed.

  According to this configuration, since the heat insulating material 22 can be suppressed from being formed outside the rib, the heat insulating material 22 can be more easily covered with respect to the faucet 10.

  Further, in the present embodiment, the heat insulating material 22 preferably has a thermal conductivity of 0.05 W / m · K or less.

  According to this configuration, the heat retaining property of the faucet body 21 can be further improved.

  Further, in the present embodiment, the heat insulating material 22 includes either urethane foam or polystyrene foam.

  According to this configuration, the heat retaining property of the faucet body 21 can be further improved.

  Moreover, in this embodiment, in the manufacturing method of the faucet 10 which was formed with resin and was covered with the heat retention material 22, process ST10 and process ST20 are included. In step ST10, the faucet body 21 through which water flows is attached to the mold 70. In step ST20, a polymer material is injected into the space formed between the faucet body 21 and the mold 70 to foam the same.

  According to this configuration, the heat insulating material 22 can be more easily covered with respect to the faucet body portion 21. Also, by changing the mold 70, the thickness of the heat insulating material 22 can be easily changed depending on the place. For this reason, it is possible to further improve the heat retaining property particularly for the part that is desired to be kept warm.

  The faucet 10 according to the present embodiment includes the faucet body 21, the body cover 25 covering the faucet body 21, and the handle 51 attached to the faucet body 21. The main body cover 25 has a top cover 250 covering the upper portion of the faucet main body 21, and a base cover 251 which is formed separately from the top cover 250 and is fitted to the top cover 250. The handle 51 has a top plate portion 55 constituting an upper surface, and a base portion 56 formed separately from the top plate portion 55 and fitted with the top plate portion 55.

  According to this configuration, the top cover 250 and the top 55 of the handle 51 can be easily replaced. Therefore, when changing the design such as the color and shape of the faucet 10, it is not necessary to replace all of the main body cover 25 and the handle 51, only by replacing the top plate cover 250 and the top plate portion 55. The design of the stopper 10 can be easily changed. Moreover, since the base cover 251 and the base part 56 can be made common, the manufacturing cost of the faucet 10 which changed the designability can be suppressed.

  Further, in the present embodiment, the top cover 250 is formed to protrude from the base cover 251, and the top plate 55 is formed to protrude from the base portion 56.

  According to this configuration, it is possible to make the base cover 251 and the base portion 56 less visible when viewed from above. For this reason, the design of the faucet 10 can be more easily changed by changing the top cover 250 and the top plate 55 without changing the base cover 251 and the base portion 56.

  Further, in the present embodiment, the top cover 250 slides and fits to the base cover 251, and the top plate 55 slides and fits to the base 56.

  According to this configuration, the top cover 250 can be more easily attached to the base cover 251, and the top 55 can be more easily attached to the base 56. Further, since rattling of the handle 51 can be suppressed, the operability of the handle 51 can be improved.

  Further, in the present embodiment, the main body cover 25 and the handle 51 are formed of resin.

  According to this configuration, it is possible to suppress the cost of the main body cover 25 and the handle 51 more than the metal.

  Further, in the present embodiment, the top cover 250 and the top portion 55 are formed of an acrylic resin.

  According to this configuration, the cleaning performance of the top cover 250 and the top 55 can be further improved.

  Further, in the present embodiment, the faucet main body portion 21 has an axial direction of the hot and cold water mixing valve 30, and the switching valve 31 for changing the amount of hot and cold water discharged by the hot and cold water mixing valve 30 and the discharging direction. And a cylindrical main pipe portion 210 attached to the inside. The handle 51 is provided at both ends of the main pipe portion 210 and operates the hot and cold water mixing valve 30 and the switching valve 31.

  According to this configuration, in the faucet 10 having the hot and cold water mixing valve 30 and the switching valve 31, the top plate cover 250 and the top plate portion 55 can be easily replaced. For this reason, the design of the faucet 10 which has the hot and cold water mixing valve 30 and the switching valve 31 can be easily changed.

  The present invention is not limited to the above embodiment, and can be implemented in various other aspects. In the embodiment, the faucet main body portion 21 includes the main pipe portion 210, the hot water supply branch pipe portion 211, the water supply branch pipe portion 212, the currant water discharge branch pipe portion 213, and the shower water discharge branch pipe portion And 214, but other configurations are also possible. As long as the faucet main body 21 through which the water passes is formed of resin and covered with the heat insulating material 22, another configuration may be employed. For example, it may be a single faucet that discharges either water or hot water. Also, for example, the faucet body 21 is covered with an outer cylinder, a flow path is provided between the outer periphery of the faucet body 21 and the outer cylinder, and water from the water supply source 28 is mixed with the hot and cold water mixing valve through the flow path 30 may be supplied. Even if it is these structures, while manufacturing easily, heat retention can be improved.

  Also, although the heat insulating material 22 includes either urethane foam or polystyrene foam, it is not limited thereto. The heat insulator 22 may be another member as long as it can prevent the water inside the faucet body 21 from freezing.

  Further, in the method of manufacturing the faucet 10 covered with the heat insulating material 22, a process ST 10 of attaching the faucet body 21 through which water flows to the mold 70, and between the faucet body 21 and the mold 70. Although the process ST20 which injects and foams a polymeric material in the space formed was included, it is not limited to this. If the heat insulating material 22 is a member that prevents the water inside the water faucet main body 21 from freezing, the water faucet 10 covered with the heat insulating material 22 may be manufactured by another manufacturing method. For example, the heat insulating material 22 previously formed of foamed plastic such as foamed PP (foamed polypropylene) or foamed PS (foamed polystyrene) may be attached so as to cover the outer periphery of the faucet body portion 21. This configuration can also prevent damage to the faucet body 21.

Second Embodiment
The faucet of Embodiment 2 which concerns on this invention is demonstrated using FIGS. 20-27. In the second embodiment, points different from the first embodiment will be mainly described. In the second embodiment, the same or similar configuration as that of the first embodiment is described with the same reference numerals. Moreover, in the second embodiment, the description overlapping with the first embodiment is omitted.

  The second embodiment differs from the first embodiment in the peripheral configuration of the callan spout water branch pipe portion 213A and the configuration of the heat insulating material 100.

  The peripheral configuration of the callan spout water branch pipe portion 213A in the water faucet main body portion 21A according to the second embodiment of the present invention will be described with reference to FIG. FIG. 20 is a perspective view showing a schematic configuration of the faucet main body 21A. In Drawing 20, illustration is suitably omitted about composition other than faucet main part 21A.

  As shown in FIG. 20, the branch pipe portion for callan spout 213A has a substantially elliptical shape. Inside the branch pipe portion 213A for water discharge, the water discharge port 210c formed on the outer peripheral portion of the main pipe portion 210 is exposed. A water discharge block 80 (FIG. 21), which will be described later, is attached to the callan water discharge branch portion 213A so as to communicate with the water discharge port 210c.

  Screw receivers 82 are provided on both sides of the branch pipe portion 213A for water discharge. A screw 85 (FIG. 21) described later is screwed into the screw receiving portion 82. By screwing the screw 85 into the screw receiving portion 82, the water discharge block 80 can be fixed to the water faucet body portion 21A. The screw receiving portion 82 is formed with a screw groove (not shown) for receiving the screw thread of the screw 85.

  Next, the water discharge block 80 for performing water spouting in the faucet main body 21A will be described with reference to FIGS. FIG. 21 is an exploded perspective view of the water discharge block 80 according to the second embodiment of the present invention. FIG. 22 is a perspective view of the main body 84 of the water discharge block 80. FIG. FIG. 23 is a partially enlarged vertical sectional view showing the water discharge block 80 and peripheral members.

  As shown in FIG. 21, the water discharge block 80 includes a main body 84, a screw 85, a strainer 86, and a cap 88.

  The main body 84 is a cylindrical member that constitutes the main body of the water discharge block 80. An upstream opening 90A is formed at the upstream end of the main body 84, and a downstream opening 90B (FIG. 22) is formed at the downstream end. The upstream opening 90A and the downstream opening 90B communicate with each other to form a flow path for water spouting. The upstream side opening 90A is disposed at a position facing the callan spout 210c inside the above-mentioned branch pipe portion for callan 213A.

  The body portion 84 is provided with flange portions 92a and 92b extending in the left-right direction (Y direction). Insertion holes 94 are formed in the flange portions 92a and 92b, respectively. The insertion hole 94 is a hole for inserting the screw 85. In a state where the screw 85 is inserted into the insertion hole 94, the screw 85 is screwed into the screw receiving portion 82 (FIG. 20) of the faucet main body portion 21A.

  As shown in FIG. 23, in the state where the water discharge block 80 is attached to the branch pipe portion for currant water spout 213A, the flange portion 92a is configured to be longer outward than the screw receiving portion. Specifically, the left flange portion 92 a is formed to extend to the left than the left end of the left screw receiving portion 82.

  A rectifying unit 87 (FIG. 22) is provided inside the main body 84. The straightening unit 87 is a member for straightening the water flowing through the main unit 84. The rectifying unit 87 in the present embodiment is integrally formed with the main body 84. Specifically, the main body 84 and the straightening unit 87 are integrally formed of resin by injection molding using the same resin material.

  The strainer 86 is a mesh-like member for adjusting the amount of water flowing through the main body 84. The strainer 86 is provided between the main body 84 and the cap 88.

  The cap 88 is a cylindrical member that covers the downstream side of the main body 84. The cap 88 is screwed into the main body 84. An opening (not shown) is formed at the lower end of the cap 88, and the downstream opening 90B of the main body 84 is exposed through the opening. The downstream side opening 90 B constitutes a water discharge port of the water discharge block 80.

  Next, the heat insulating material 100 will be described with reference to FIGS. FIG. 24 is a top perspective view of the heat insulating material 100. FIG. FIG. 25 is a lower perspective view of the heat insulating material 100. FIG. FIG. 26 is an exploded perspective view of FIG. FIG. 27 is an exploded perspective view of FIG.

  As shown in FIGS. 24 to 27, the heat insulating material 100 is formed to be dividable and attached to the faucet main body 21A (FIG. 20). Moreover, the heat insulating material 100 has a shape along the outer peripheral shape of the faucet body 21A. The heat insulating material 100 includes a first heat insulating material 101 and a second heat insulating material 102 fitted with the first heat insulating material 101. In the present embodiment, the heat insulating material 100 is formed by being vertically divided into two, and has the lower heat insulating material 101 and the upper heat insulating material 102. Hereinafter, the first heat insulating material 101 is referred to as the lower heat insulating material 101, and the second heat insulating material 102 is referred to as the upper heat insulating material 102.

  The lower heat insulator 101 and the upper heat insulator 102 are positioned by the hot water supply branch pipe portion 211 (FIG. 20) and the water supply branch pipe portion (FIG. 20). The lower heat insulator 101 and the upper heat insulator 102 have a plurality of openings 220A, 221A, 223A at the back facing the wall of the bathroom. The hot water supply branch pipe portion 211 is disposed in the opening 220A. The water supply branch pipe portion 212 is disposed in the opening 221A. The shower spout branch pipe portion 214 (FIG. 20) is disposed in the opening 223A.

  The lower heat insulating material 101 is attached to the main pipe portion 210 on the side where the water spout 210 c is formed. The lower heat insulating material 101 has a plurality of openings 222A, 224A, 225A, 226A at the bottom surface. The branch pipe portion 213A (FIG. 20) for water spouting is disposed at the opening 222A. The pressure relief branch pipe 215 (FIG. 20) is disposed in the opening 224A. The water draining branch pipe portion 216 (FIG. 20) is disposed in the opening 225A. Fasteners 219 (FIG. 20) are disposed in the openings 226A.

  In the present embodiment, the opening 222A is formed along the outer periphery of the branch pipe portion for currant water spout 213A and the screw receiving portion 82, and is inserted by being fitted to the branch pipe portion for currant water spout 213A and the screw receiving portion 82 Ru. Similarly, the opening 224A is formed along the outer periphery of the pressure relief branch pipe 215, and is inserted into the pressure relief branch pipe 215 by fitting. Similarly, the opening 225A is formed along the outer periphery of the water draining branch pipe portion 216, and is fitted into and inserted into the water draining branch pipe portion 216. Thereby, the lower side heat retention material 101 is fitted and attached with respect to the faucet main-body part 21A. For this reason, the heat insulating material 101 on the lower side can be held with respect to the faucet body 21A.

  Furthermore, as shown in FIG. 23, in the state where the heat insulator 101 on the lower side is attached to the faucet main body portion 21A, the heat insulator 101 on the lower side is held by the water discharge block 80 with the main pipe portion 210.

  As shown in FIGS. 24-27, the upper heat insulating material 102 has a front surface 103 extending downward. The lower heat insulating material 101 has a front surface 104 extending upward. When the upper heat insulating material 102 is attached to the lower heat insulating material 101, a part of the lower heat insulating material 101 is covered by the front surface 103 of the upper heat insulating material 102. Specifically, the front surface 104 of the lower heat insulating material 101 is disposed rearward of the front surface 103 of the upper heat insulating material 102 and is covered by the front surface 103. The upper heat insulating material 102 and the lower heat insulating material 101 are formed in consideration of shrinkage after molding.

  The upper heat insulating material 102 has a plurality of projections 105, and the lower heat insulating material 101 has a plurality of recesses 106. The protrusion 105 is fitted and attached to the recess 106. Thereby, the heat insulating material 102 on the upper side can be positioned with respect to the heat insulating material 101 on the lower side.

  Next, a method of assembling the heat insulating material 100 will be described. The lower heat insulating material 101 is fitted and attached to the faucet main body 21A (FIG. 20). The protrusion 105 is fitted in the recess 106, and the upper heat insulating material 102 is attached to the lower heat insulating material 101. Further, the water discharge block 80 is attached to the callan water discharge branch portion 213A (FIG. 20). At this time, as shown in FIG. 23, the lower heat insulating material 101 is disposed between the flange portion 92 a of the water discharge block 80 and the main pipe portion 210. After the lower heat retention material 101 and the upper heat retention material 102 are attached to the faucet main body 21A, front and rear joints of the lower heat retention material 101 and the upper heat retention material 102 are fixed by aluminum tape or the like. Thereby, the heat insulating material 100 can be prevented from being detached from the faucet body 21A.

[effect]
In the present embodiment, the heat insulating material 100 is formed to be dividable.

  According to this configuration, the heat insulating material 100 can be easily attached to the faucet body portion 21A.

  Further, in the present embodiment, the heat insulating material 100 includes the first heat insulating material 101 and the second heat insulating material 102 fitted with the first heat insulating material 101. The first heat insulating material 101 and the second heat insulating material 102 have a shape following the outer peripheral shape of the faucet main body 21A, and are positioned by the hot water supply branch pipe portion 211 and the water supply branch pipe portion 212.

  According to this configuration, the first heat insulating material 101 and the second heat insulating material 102 can be easily positioned with respect to the faucet main body portion 21A.

  Further, in the present embodiment, the main pipe portion 210 is provided with a water discharge port 210c communicating with the switching valve 31, and the water discharge block 80 communicating with the water discharge port 210c to form a flow path for water discharge It is attached to the part 210. The first heat insulating material 101 is attached to the main pipe portion 210 on the side where the water discharge port 210 c is formed, and is held by the water discharge block 80.

  According to this configuration, the water discharge block 80 can prevent the first heat insulating material 101 from being detached from the faucet main body portion 21A.

  The present invention is not limited to the above embodiment, and can be implemented in various other aspects. In the above embodiment, the left flange portion 92a is formed extending to the left side of the left end of the left screw receiving portion 82, but another configuration is possible if the first heat insulating material 101 is held by the water discharge block 80. It may be For example, the flange portions 92 a and 92 b may be formed longer in the front-rear direction (X direction) than the screw receiving portion 82 to hold the first heat insulating material 101.

  While the present invention has been fully described in connection with the preferred embodiments with reference to the accompanying drawings, various changes and modifications will be apparent to those skilled in the art. Such variations and modifications are to be understood as being included therein without departing from the scope of the present invention as set forth in the appended claims. Furthermore, changes in combinations or order of elements in the embodiments can be realized without departing from the scope and spirit of the present invention.

  The present invention is useful for a faucet that requires heat retention.

DESCRIPTION OF SYMBOLS 10 faucet 20 faucet unit 21, 21 A faucet main body part 210 main pipe part 210a hot water inlet 210b water inlet 210c callan spout 210d shower spout 211 hot water supply branch pipe part 212 water supply branch pipe part 213, 213A currant Water discharge branch pipe part 213a Straightening part 214 Shower spout water branch pipe part 215 Pressure relief branch pipe part 216 Water discharge branch pipe part 217 Thread groove 218a, 218aa, 218b, 218c Rib 219 Fastening part 22 Heat retaining material 220, 221, Reference numerals 222, 223, 224, 225, 226 Opening 23 Support member 23a Recess 24 Stay 25 Body cover 250 Top cover 251 Base cover 252 Ridge 253a, 253b, 255a, 255b Fitting portion 253aa Recess 254a, 254b, 256a, 256b Lock Fitting section 254a , 256baa guide 254ba, 256ba first fitting part 254bb, 256bb second fitting part 255aa protrusion 26 joint 27 hot water supply source 28 water supply source 29, 29A shower elbow 29a connecting member 30 hot water / water mixing valve 31 switching valve 32 gear part 33 Cap member 34 Color 35 Support member 35a Recess 50 Handle unit 51 Handle 52 Transmission member 53 Screw 54 Outer cover 55 Top plate 55a, 55b, 55c Protrusive piece 55aa, 55ba Slide 56 56 Base 56a, 56b, 56c Plate 57 Handle collar 58, 59 Opening 60 Safety lock 61 Gear section 70 Mold 71 First mold 72 Second mold 73 Recess 74 Communication hole 80 Water spout block 82 Screw receiving portion 84 Body portion 85 Screw 86 Strainer 87 Rectifying portion 88 cash 90A upstream side opening 90B downstream side opening 92a, 92b flange portion 94 insertion hole 100 heat insulating material 101 first heat insulating material 102 second heat insulating material 103, 104 front surface 105 protrusion 106 recessed portion 220A, 221A, 222A, 223A, 224A, 225A, 226A opening

Claims (11)

It has a faucet body through which water passes,
The faucet main body is formed of a resin and covered with a heat insulating material. The faucet body portion is
A cylindrical main pipe portion in which a hot water and a hot water mixing valve for mixing hot water and water, and a switching valve for changing the amount of hot water and the discharge direction of the hot water mixed by the hot water mixing valve;
A hot water supply branch pipe portion connecting a hot water supply source and the main pipe portion and forming a flow path through which the hot water flows;
A water supply branch pipe portion connecting a water supply source and the main pipe portion and forming a flow path through which water flows;
The faucet according to claim 1, comprising: The hot and cold water mixing valve and the switching valve are attached side by side in the axial direction of the main pipe portion,
The main pipe portion has a hot water inlet and a water inlet communicating with the hot water mixing valve,
The hot water supply branch pipe portion connects the hot water supply source and the hot water inlet of the main pipe portion,
The water faucet according to claim 2, wherein the water supply branch pipe portion connects the water supply source to the water inlet of the main pipe portion.   The hot water supply branch pipe portion and the water supply branch pipe portion are provided in line in the axial direction with respect to the main pipe portion, and between the hot water supply branch pipe portion and the water supply branch pipe portion The faucet according to claim 2 or 3, wherein a heat insulating material is provided in the formed space.   The rib extended in the circumferential direction is formed in at least any one of the said main pipe part, the said branch pipe part for hot-water supply, and the said branch pipe part for water supply. Description faucet.   The water faucet according to any one of claims 1 to 5, wherein the heat insulating material is formed to be dividable. The heat insulating material includes a first heat insulating material, and a second heat insulating material fitted with the first heat insulating material.
The first heat retaining material and the second heat retaining material have a shape following the outer peripheral shape of the faucet body, and are positioned by the hot water supply branch pipe and the water supply branch pipe. The water faucet as described in any one of Claims 2-5. The main pipe portion is formed with a water discharge port communicating with the switching valve,
A water discharge block communicating with the water discharge port and forming a flow path for water discharge is attached to the main pipe portion,
The water faucet according to claim 7, wherein the first heat insulating material is attached to the main pipe portion on the side where the water spout is formed, and is held by the water discharge block.   The faucet according to any one of claims 1 to 8, wherein the heat insulating material has a thermal conductivity of 0.05 W / m · K or less.   The water faucet according to claim 9, wherein the heat insulating material includes either urethane foam or polystyrene foam. A method of manufacturing a faucet formed of a resin and covered with a heat insulating material,
Attaching a faucet body through which water flows to the mold;
And injecting a polymer material into a space formed between the faucet main body and the mold to foam the same.

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