JP7442115B2 - Water faucet - Google Patents

Description

The present invention relates to a water faucet.

BACKGROUND ART Conventionally, faucets used in kitchens, washrooms, etc. have been disclosed (for example, see Patent Document 1). The faucet disclosed in Patent Document 1 is a shower head that employs a microbubble generator, and includes a spout with a spout for spouting hot water.

Japanese Patent Application Publication No. 2010-284619

Since the spout is the part that spouts hot water, detergent and other dirt easily adhere to the spout's surface. There is a need for the development of a technology that further improves the cleanability of spouts and faucets including spouts, including the configuration disclosed in Patent Document 1.

Therefore, an object of the present invention is to provide a faucet with improved cleaning performance in order to solve the above-mentioned problems.

In order to achieve the above object, the faucet of the present invention includes a spout that forms a spout that spouts hot water, and a spout that is inserted into the spout and forms a flow path for hot water that is spouted from the spout. A water faucet, comprising: a channel forming part; and a water spouting part disposed at the water spout of the spout and having a water spouting hole for discharging hot water flowing through the flow path of the flow path forming part to the outside of the spout. The inner wall of the spout is formed with a contact surface that comes into contact with the flow path forming portion so as to restrict movement of the flow path forming portion in the insertion direction, and the flow path forming portion The spout has a connecting part connected to the connecting part, the water spout is positioned at the water spout in a state connected to the connecting part, and the spout includes a base material, a plating layer provided on the base material, and a transparent resin coating layer provided on the plating layer.

According to the faucet of the present invention, cleaning performance can be improved.

A diagram showing a schematic configuration of a water faucet in Embodiment 1 A diagram showing a schematic configuration of a water faucet in Embodiment 1 Side view of the spout and its peripheral members in Embodiment 1 Bottom view of the spout and its surrounding members in Embodiment 1 AA sectional view in Figure 3 BB sectional view in Figure 4 Side view of a single spout in Embodiment 1 Bottom view of the spout alone in Embodiment 1 A perspective view of a single spout in Embodiment 1 Enlarged sectional view of the part where the water discharge part and the flow path forming part are connected Partially enlarged view of Figure 10A A diagram showing a schematic configuration of a water faucet in Embodiment 2 A diagram showing a schematic configuration of a water faucet in Embodiment 2 Cross-sectional view of the spout and its internal configuration in Embodiment 2 Partially enlarged view of Figure 13A

Embodiments according to the present invention will be described in detail below based on the drawings. Note that the present invention is not limited to this embodiment.

(Embodiment 1)
1 and 2 are schematic perspective views of a water faucet 2 in the first embodiment. FIG. 1 shows a state in which the spout 6 of the faucet 2 is retracted, and FIG. 2 shows a state in which the spout 6 is pulled out forward.

The faucet 2 shown in FIGS. 1 and 2 is a single-lever faucet device used in kitchens, washrooms, and the like. The faucet 2 includes a main body 4 that stands upright on an installation stand (not shown), a lever 5, a spout 6, and a push button 10.

The main body portion 4 is a member that integrally supports the lever 5 and the spout 6. The spout 6 is a member that forms a spout 8 for spouting hot water. As shown by arrow P in FIG. 1, the spout 6 extends from the proximal end side connected to the main body 4 toward the distal end side forming the spout 8. A push button 10 is attached to the tip of the spout 6.

By operating the lever 5, the user can switch between spouting water from the spout 8 and stopping water, and adjust the temperature of the spouted water. By operating the push button 10, the user can switch the water discharged from the water spout 8 between shower water discharge and straight water discharge. The detailed mechanism will be described later.

The spout 6 of Embodiment 1 has a three-layer structure. Specifically, a base material, a plating layer, and a transparent resin coating layer are provided concentrically in order from the center side of the spout 6 (all not shown).

Particularly in the first embodiment, acrylic resin (PMMA resin) is used as the transparent resin coating layer of the spout 6. The acrylic resin is formed, for example, by a photocuring method. Acrylic resin is a material that does not easily attract limescale and has excellent cleanability (stain resistance). In this way, by using acrylic resin as the material for the spout 6, which is the part that spouts hot water, the cleaning performance of the faucet 2 can be improved. On the other hand, ABS resin, polyacetal (POM), and the like are superior to acrylic resin in molding fine shapes such as threads.

Since a transparent resin coating layer is used as the outermost layer of the spout 6, the inner plating layer can be visually recognized, giving a sense of luxury.

In the first embodiment, acrylic resin is used as the transparent resin coating layer, but any other material may be used as long as it is a transparent resin.

Further, in the first embodiment, ABS resin is used as the base material and chrome plating is used as the plating layer. Not limited to this case, any other material may be used.

It should be noted that a plating layer and a transparent resin coating layer are provided on the surface side of the main body portion 4, but only a plating layer is provided on the inside side. After the plating layer is formed on the inside of the main body part 4, it is masked to prevent the formation of a transparent resin coating layer. When the transparent resin coating layer is cured using a photocuring method, the interior of the main body 4 may not be sufficiently exposed to light, resulting in insufficient curing, which may result in defects.To prevent this, , no transparent resin coating layer is formed on the inside of the main body portion 4.

3 and 4 are diagrams showing a schematic configuration of the spout 6. As shown in FIG. 3 is a side view of the spout 6, and FIG. 4 is a bottom view of the spout 6.

As shown in FIGS. 3 and 4, the water spout 8 is provided with a water spout 12. As shown in FIGS. The water spouting section 12 is a member that spouts hot water flowing inside the spout 6 to the outside. The configuration of the water spouting section 12 will be described later.

The internal structure of the spout 6 shown in FIGS. 3 and 4 will be explained using FIGS. 5 and 6. 5 is a sectional view taken along line AA in FIG. 3, and FIG. 6 is a sectional view taken along line BB in FIG.

As shown in FIGS. 5 and 6, a flow path forming portion 14 is provided inside the spout 6. As shown in FIGS. The flow path forming portion 14 is a member that forms a flow path for hot water to be discharged from the water spouting portion 12 described above. Hot water is supplied to the flow path forming portion 14 from a hot water supply source (not shown) located on the upstream side via another flow path forming portion 38 .

As shown in FIG. 6, the flow path forming section 14 includes a tube section 15. The tube portion 15 is a tubular member that forms a first flow path 16 and a second flow path 18 inside. The first flow path 16 is a flow path for straight water discharge, and the second flow path 18 is a flow path for shower water discharge. Both the first flow path 16 and the second flow path 18 are connected to the water spouting hole of the water spouting section 12 .

The flow path forming section 14 further includes a flow path switching section 20 for selectively switching between the first flow path 16 and the second flow path 18. The flow path switching section 20 includes a valve ball 22 (FIG. 6), a valve ball holding section 24, a cam mechanism 26 (FIG. 5), a link 28, and an alternate mechanism 30.

The valve ball 22 is a valve body that selectively closes the upstream end of either the first flow path 16 or the second flow path 18 . The valve ball 22 is provided so as to be rotatable about the axial direction C of the spout 6 . The valve ball 22 is rotatable between a first position where the first flow path 16 is closed and a second position where the second flow path 18 is closed, and the state in the first position is shown in FIG. shown. In this state, shower water is discharged from the water discharge section 12 through the second flow path 18.

The valve ball holding portion 24 is a member that holds the valve ball 22. The valve ball holding portion 24 is connected to a cam mechanism 26 (FIG. 5). The cam mechanism 26 is a member that converts linear movement in the axial direction C due to pushing of the push button 10 into rotational movement of the spout 6 around the axial direction C. The cam mechanism 26 is connected to a second link 28b of the link 28.

The link 28 is a member that connects the cam mechanism 26 described above and the alternate mechanism 30 described later. The link 28 is attached to the inside of the push button 10 and moves along the axial direction C of the spout 6 in response to pushing of the push button 10. The link 28 includes a first link 28a and a second link 28b as two branch parts. The first link 28a is connected to the alternate mechanism 30, and the second link 28b is connected to the cam mechanism 26.

The alternate mechanism 30 is a mechanism that maintains the push button 10 in two states: a pressed state and a non-pressed state. The alternate mechanism 30 includes a knock-type mechanism including springs 32A, 32B, and the like.

According to such a configuration, when the push button 10 is pressed, the valve ball 22 moves between the first position where the first flow path 16 is closed and the second position where the second flow path 18 is closed. The water spouted from the water spouting part 12 can be switched between straight water spouting and shower water spouting.

The flow path forming section 14 including the flow path switching section 20 described above is inserted into the spout 6 and positioned. When inserting the channel forming part 14 into the spout 6, it is inserted through an opening at one end of the spout 6. This will be explained using FIGS. 7 to 9.

7 to 9 are schematic diagrams of the spout 6 alone. 7 is a side view of the spout 6, FIG. 8 is a bottom view of the spout 6, and FIG. 9 is a perspective view of the spout 6.

As shown in FIGS. 7 to 9, openings are formed in the spout 6 at both ends in the axial direction C. As shown in FIGS. Specifically, a distal opening 34 is formed at the distal end of the spout 6, and a proximal opening 36 is formed at the proximal end of the spout 6.

The tip side opening 34 is an opening for attaching the push button 10 described above. A pressing direction D1 in which the push button 10 is pressed is a direction from the distal end side to the proximal end side of the spout 6.

The proximal opening 36 is an opening for inserting and positioning the aforementioned flow path forming portion 14 into the spout 6. The insertion direction D2 in which the channel forming part 14 is inserted into the proximal opening 36 is a direction from the proximal end of the spout 6 toward the distal end.

As shown in FIGS. 8 and 9, a plurality of ribs 40 are formed on the inner wall 39 of the spout 6. As shown in FIGS. The rib 40 is a member that abuts against the flow path forming portion 14 inserted into the spout 6 to position the flow path forming portion 14 . The rib 40 functions as a contact surface that comes into contact with the flow path forming portion 14 . The rib 40 in the first embodiment is composed of a plurality of protrusions extending along the longitudinal direction of the spout 6, that is, the axial direction C. In the first embodiment, a total of four ribs 40 are provided, two on the upper and lower sides. Each rib 40 is provided as a protrusion whose height gradually increases from the distal end to the proximal end.

The flow path forming portion 14 inserted into the spout 6 through the proximal opening 36 contacts the rib 40 on the outer surface of the tube portion 15 described above. While the ribs 40 restrict movement of the flow path forming portion 14 in the insertion direction D2, they do not restrict movement of the flow path forming portion 14 in a direction opposite to the insertion direction D2, that is, in the pressing direction D1. Although the channel forming portion 14 in contact with the rib 40 cannot move further in the insertion direction D2, it can move in the pressing direction D1 and can be pulled out from the proximal opening 36.

The push button 10 described above is attached with the flow path forming portion 14 in contact with the rib 40. Specifically, the push button 10 is attached to the distal end of the spout 6 so as to close the distal opening 34. The push button 10 is also attached to the link 28 of the flow path switching section 20. By providing the push button 10, movement of the flow path forming portion 14 not only in the insertion direction D2 but also in the pressing direction D1 is restricted. As a result, the flow path forming portion 14 is positioned and fixed within the spout 6 so as not to move in any direction.

The water spouting part 12 is connected to the flow path forming part 14 fixed in the spout 6 in this way. The connection form of the water discharge part 12 and the flow path forming part 14 will be explained using FIG. 10A and FIG. 10B.

FIG. 10A is an enlarged cross-sectional view of a location where the water discharge section 12 and the flow path forming section 14 are connected. FIG. 10B is a partially enlarged view of FIG. 10A.

As shown in FIG. 10A, the tube part 15 of the flow path forming part 14 includes a first cylindrical part 42 and a second cylindrical part 44 as two cylindrical parts at its distal end. The first cylindrical part 42 is a cylindrical part provided inside the second cylindrical part 44, and forms the first flow path 16 for straight water discharge inside. The second cylindrical part 44 is a cylindrical part provided outside the first cylindrical part 42 with a space therebetween, and has a second flow for shower water discharging between the first cylindrical part 42 and the second cylindrical part 44 . A channel 18 is formed.

The water spouting part 12 is particularly connected to the second cylindrical part 44 . The second cylindrical portion 44 includes a connecting portion 46 for connecting with the water spouting portion 12 . The connecting portion 46 of the first embodiment is constituted by a screw thread formed on the outer surface of the second cylindrical portion 44 . On the other hand, the first cylindrical portion 42 and the water discharging portion 12 are merely in contact with each other and are not connected to each other.

In the faucet 2 of the first embodiment, the entire pipe portion 15 including the connecting portion 46 is made of polyacetal. Polyacetal has higher moldability than acrylic resin and can be easily formed into fine shapes. By forming the pipe portion 15 including the connecting portion 46 using such a material, the connecting portion 46 using threads can be easily formed.

The water spouting part 12 connected to the connecting part 46 includes a water spouting plate 48 and a holding part 50. The water discharge plate 48 is a member that is exposed outside the spout 6 and forms a water discharge hole. The holding part 50 is a member that holds the water discharge plate 48. In the first embodiment, the water discharge plate 48 and the holding portion 50 are integrally formed. In such a configuration, the holding portion 50 of the water spouting portion 12 is connected to the connecting portion 46 of the second cylindrical portion 44 . The holding part 50 has a cylindrical shape and has a screw thread inside thereof, so that it is screwed into the connecting part 46 .

The water spouting portion 12 is made of ABS resin. ABS resin, like polyacetal, has higher moldability than acrylic resin and can be easily formed into fine shapes. By forming the pipe portion 15 with such a material, a thread for connecting to the connecting portion 46 can be easily formed.

Regarding formability, "flexural modulus" may be used as an index. In general, a resin with a small bending modulus is a soft material, so it has high fluidity and excellent moldability when molded with a mold. On the other hand, a resin with a high bending elastic modulus is a hard material, and therefore has a smooth surface and is easy to clean. As an example, the flexural modulus of ABS resin is 2000 MPa, the flexural modulus of polyacetal is 2500 MPa, and the flexural modulus of acrylic resin is 3300 MPa.

The water spouting plate 48 forms a first water spouting hole 52 and a second water spouting hole 54 as two types of water spouting holes. The first water spouting hole 52 is a water spouting hole for straight water spouting, and the second water spouting hole 54 is a water spouting hole made up of a plurality of sprinkling holes for shower water spouting. The first water spouting hole 52 communicates with the first flow path 16 , and the second water spouting hole 54 communicates with the second flow path 18 .

In such a configuration, the water discharge part 12 connected to the flow path forming part 14 does not contact the spout 6 and is not connected to the spout 6. FIG. 10B shows a non-contact state between the water discharging section 12 and the spout 6.

As shown in FIG. 10B, the water spouting plate 48 of the water spouting part 12 and the inner peripheral edge portion 56 forming the water spout 8 of the spout 6 are arranged with a slight interval from each other. Since the water discharging plate 48 is a water passing portion through which hot water passes, when hot water with high temperature is passed through the water discharging plate 48, the temperature rises and the plate tends to expand. On the other hand, by leaving a space between the water discharge plate 48 and the spout 6, damage due to mutual contact can be prevented.

As shown in FIG. 10B, corresponding steps 58 and 60 are provided on the water discharge plate 48 and the inner peripheral edge 56 of the spout 6, respectively. Both of the steps 58 and 60 have a shape that decreases in diameter in the radial direction from the outside of the spout 6 toward the inside. Around the steps 58 and 60, the distance H1 between the water discharge plate 48 and the spout 6 is maintained at the same level. The interval H1 may be set to, for example, 0.3 mm or more and 0.5 mm or less.

By providing such steps 58 and 60, it becomes difficult to see the back side of the boundary between the water discharge plate 48 and the spout 6. Thereby, the design of the faucet 2 can be improved. In particular, if the spout 6 and the water discharge plate 48 are made of different materials, and if the acrylic resin spout 6 is white, the boundary will be easily noticeable. Therefore, by providing the steps 58 and 60, deterioration in appearance due to the gap between the spout 6 and the water discharge plate 48 can be suppressed, and the design of the faucet 2 can be effectively improved. Further, by providing the steps 58 and 60, it becomes difficult for hot water to enter the spout 6 from the boundary between the water discharge plate 48 and the spout 6.

Returning to FIG. 10A, a cushioning material 62 is provided between the spout 6 and the push button 10. The cushion material 62 is a member that assists the sliding movement of the push button 10. The cushioning material 62 is made of polyacetal in the first embodiment as a material different from acrylic resin.

In the first embodiment, like the spout 6, at least the outermost layer of the push button 10 is also made of acrylic resin. By forming not only the outermost layer of the spout 6 but also the outermost layer of the push button 10 from an acrylic resin with high cleaning properties, the cleaning properties of the faucet 2 can be further improved. On the other hand, if the outermost layers of the spout 6 and the push button 10 are made of the same material, the sliding of the push button 10 tends to cause abnormal noise. Therefore, by providing a cushion material 62 made of a material different from these materials between the spout 6 and the push button 10, it is possible to suppress the generation of abnormal noise.

As described above, according to the faucet 2 of the first embodiment, the inner wall 39 of the spout 6 is provided with a rib that abuts the flow path forming portion 14 so as to restrict movement of the flow path forming portion 14 in the insertion direction D2. 40 is formed. Furthermore, the flow path forming part 14 has a connecting part 46 that connects with the water spouting part 12 , and the water spouting part 12 is positioned at the water spout 8 while being connected to the connecting part 46 . In such a configuration, the spout 6 includes a base material, a plating layer provided on the base material, and a transparent resin coating layer provided on the plating layer.

According to such a configuration, by applying a transparent resin coating to the spout 6, limescale becomes difficult to adhere to the surface of the spout 6, and cleaning performance can be improved. In addition, compared to a configuration in which a screw thread is provided on the base material and masked without providing a plating layer and a transparent resin coating, the masking process is not required, so the manufacturing process of the spout 6 can be simplified, and the manufacturing process can be simplified. Cost can be reduced.

Particularly in the first embodiment, acrylic resin is used as the transparent resin coating layer. In the case of acrylic resin, it is difficult to mold fine shapes such as threads compared to ABS resin, but the water spouting part 12 is connected to the flow path forming part 14 inside the spout 6. Therefore, it is not necessary to provide the spout 6 with a shape such as a thread, and the water spouting part 12 can be positioned within the water spouting port 8 by the flow path forming part 14. In this way, the cleaning performance of the faucet 2 can be improved while positioning the water spouting part 12 with high precision.

Further, in the first embodiment, the water spouting section 12 includes a water spouting plate 48 and a holding section 50 . By providing the water discharging plate 48 and the holding portion 50 in this manner, the degree of freedom in design increases, such as by forming each of them integrally or using separate members.

Further, in the first embodiment, the connecting part 46 of the flow path forming part 14 and the holding part 50 of the water discharging part 12 are formed of a material different from acrylic resin, and have screw threads that engage with each other and are connected by screwing. be done. In this way, by connecting the connecting part 46 and the holding part 50 by screwing together the connecting part 46 and the holding part 50, the connection can be easily performed and also the holding part 50 can be easily removed.

Further, in the first embodiment, the connecting portion 46 of the flow path forming portion 14 and the holding portion 50 of the water discharging portion 12 are formed of materials (polyacetal and ABS resin) having a lower bending modulus than acrylic resin. By using a material with a small bending elastic modulus, moldability can be improved compared to acrylic resin, and shapes such as threads can be easily created.

Further, in the first embodiment, steps 58 and 60 are provided on the inner peripheral edge 56 of the spout 6 that forms the water outlet 8, the diameter of which decreases toward the inside of the spout 6. By providing such steps 58 and 60, the back side of the boundary between the spout 6 and the water discharge plate 48 can be made difficult to see, and the design of the faucet 2 can be improved. Further, it is possible to prevent water from entering the spout 6 from the boundary between the spout 6 and the water discharge plate 48.

Further, in the first embodiment, the water spouting plate 48 forms a first water spouting hole 52 for straight water spouting, and a second water spouting hole 54 formed of a plurality of sprinkling holes for shower water spouting. The first water spouting hole 52 communicates with the first flow path 16, and the second water spouting hole 54 communicates with the second flow path 18. Furthermore, a flow path switching section 20 is provided that is movable so as to selectively close either the first flow path 16 or the second flow path 18. According to this configuration, it is possible to easily switch between shower water spouting and straight water spouting.

Further, in the first embodiment, a tip end opening 34 for inserting the flow path forming portion 14 is provided at one end of the spout 6 . The flow path switching unit 20 further includes a push button 10 for moving the flow path switching unit 20 by a push operation, and the push button 10 is attached to the spout 6 so as to close the tip side opening 34. According to this configuration, the flow path forming portion 14 can be fixed within the spout 6 by closing the tip side opening 34 with the push button 10. Further, by operating the push button 10, it is possible to easily switch between shower water spouting and straight water spouting.

Further, in the first embodiment, the outermost layer of the push button 10 is made of acrylic resin, and a cushioning material made of a material different from the acrylic resin is arranged between the push button 10 and the spout 6. According to this configuration, since both the outermost layer of the push button 10 and the outermost layer of the spout 6 are made of acrylic resin, the cleaning performance of the faucet 2 can be further improved. Further, by providing a cushioning material between the push button 10 and the spout 6, it is possible to suppress the occurrence of abnormal noise due to contact between the acrylic resins.

Further, in the first embodiment, the contact surface where the inner wall 39 of the spout 6 contacts the flow path forming portion 14 is constituted by a rib 40 extending along the axial direction C of the spout 6 . According to this configuration, the contact surface can be realized with a simple configuration.

(Embodiment 2)
A faucet according to Embodiment 2 of the present invention will be described. In the second embodiment, differences from the first embodiment will be mainly described. Furthermore, in the second embodiment, the same or equivalent configurations as those in the first embodiment will be described with the same reference numerals. Furthermore, in the second embodiment, descriptions that overlap with those in the first embodiment will be omitted.

The second embodiment differs from the first embodiment mainly in the configurations of the flow path forming section, the flow path switching section, and the water discharging section. In particular, in the first embodiment, the flow path was switched by pressing the push button 10, but in the second embodiment, the main difference is that the flow path is switched by the operation of rotating the water spouting part itself.

11 and 12 are diagrams showing a schematic configuration of a water faucet 70 in the second embodiment. The faucet 70 shown in FIGS. 11 and 12 is a single-lever faucet device used in kitchens, washrooms, etc., like the faucet 2 of the first embodiment. The faucet 70 of the second embodiment includes a main body portion 4 and lever 5 similar to those of the first embodiment, as well as a spout 72 and a water spouting portion 75 having a configuration different from that of the first embodiment. The water spouting part 75 is attached to the water spout 74.

Like the spout 6 of Embodiment 1, the spout 72 of Embodiment 2 is composed of a base material, a plating layer provided on the base material, and a transparent resin coating layer provided on the plating layer. . Similar to Embodiment 1, the base material is ABS resin, the plating layer is chrome plating, and the transparent resin coating layer is acrylic resin.

The internal configuration of the spout 72 will be explained using FIGS. 13A and 13B. FIG. 13A is a longitudinal cross-sectional view of the spout 72 and its internal configuration, and FIG. 13B is a partially enlarged view of FIG. 13A.

As shown in FIG. 13A, a flow path forming portion 76 is inserted into the spout 72. As shown in FIG. The flow path forming portion 76 is a member that forms a flow path for hot water discharged from the water spout 74 . The flow path forming portion 76 is inserted through an insertion opening 78 provided at the base end of the spout 6 in the insertion direction D3 from the base end toward the distal end. FIG. 13A shows a state in which the channel forming part 76 has already been inserted.

The flow path forming portion 76 is inserted in the insertion direction D3 and comes into contact with a contact surface 80 provided on the inner wall 73 of the spout 72. The abutment surface 80 restricts movement of the flow path forming portion 76 in the insertion direction D3. On the other hand, movement in the direction opposite to the insertion direction D3 is not restricted.

The flow path forming section 76 includes a pipe section 79 . The pipe portion 79 is a member that forms one flow path 77 therein. A boss portion 84 is formed at the tip of the tube portion 79 . The boss portion 84 has a shape for connecting the water spouting portion 75 to the flow path forming portion 76 . The boss portion 84 connects the water spouting portion 75 to the flow path forming portion 76 by screwing the screw 82 .

The water spouting section 75 includes a valve plate 86, an operation ring 88, a switching cylinder 90, and a water spouting plate 92.

The valve plate 86 is a plate-shaped member attached to the boss portion 84. The valve plate 86 includes a mounting portion 94 and a plate portion 96. The attachment portion 94 is a portion that is attached to the boss portion 84 with the screw 82. The plate portion 96 is a portion that forms a communication opening (not shown) through which hot water passes. The communication opening of the plate portion 96 communicates with the flow path 77 of the pipe portion 79 on the upstream side, and communicates with the water passage hole of the switching tube 90 on the downstream side.

The operating ring 88 is a cylindrical member rotatably attached to the valve plate 86. The operating ring 88 is rotatably provided in the rotational direction R about the central axis D. The operating ring 88 is hooked onto the back side of the valve plate 86 so that it does not fall off the valve plate 86.

The switching cylinder 90 is a cylindrical member attached to the inside of the operating ring 88 so as to rotate together with the operating ring 88 . The switching tube 90 forms a first water hole (not shown) and a second water hole (not shown). In the first rotational position, the first water passage hole communicates with the communication opening of the valve plate 86, and in the second rotational position, the second water passage hole communicates with the communication opening of the valve plate 86.

The water discharge plate 92 is a member attached to the inside of the operation ring 88 so as to rotate together with the operation ring 88 and the switching cylinder 90. As shown in FIG. 13B, the water discharge plate 92 communicates with a first water discharge hole 99A for straight water discharge that communicates with the first water flow hole of the switching tube 90, and with a second water flow hole of the switching tube 90. A plurality of second water spouting holes 99B for shower water spouting are formed.

According to such a configuration, by rotating the operating ring 88 while holding the outer peripheral surface of the operating ring 88, the user can easily switch between straight water discharging and shower water discharging. Specifically, at the first rotational position, the first water spout hole 99A of the water spout plate 92 communicates with the communication opening of the valve plate 86 via the first water hole of the switching tube 90. Perform a straight spout. On the other hand, at the second rotational position, the second water spouting hole 99B of the water spouting plate 92 communicates with the communication opening of the valve plate 86 via the second water passage hole of the switching tube 90, thereby discharging shower water. conduct.

The valve plate 86, the operation ring 88, the switching tube 90, and the water spout plate 92 function as a flow path forming section that forms a first flow path for straight water spout and a second flow path for shower water spout, and It also functions as a flow path switching unit that selectively switches between two flow paths.

Further, the valve plate 86 functions as a holding portion that integrally holds the operating ring 88, the switching cylinder 90, and the water spout plate 92 at the water spout 74 by hooking the operating ring 88 and preventing it from falling off.

In the second embodiment, the flow path forming section 76 and the water discharging section 75 are formed of polyacetal or ABS resin. Specifically, the flow path forming portion 76, the valve plate 86, and the switching tube 90 are made of polyacetal, and the operation ring 88 and the water discharge plate 92 are made of ABS resin.

In such a configuration, the water discharging portion 75 is connected to the boss portion 84 which is a connecting portion of the flow path forming portion 76, but is not directly connected to the spout 72.

Similarly to the faucet 2 of the first embodiment, the faucet 70 of the second embodiment described above also has a flow channel on the inner wall 73 of the spout 72 so as to restrict movement of the flow channel forming portion 76 in the insertion direction D3. A contact surface 80 that contacts the forming portion 76 is formed. Further, the flow path forming part 76 has a boss part 84 which is a connecting part connected to the water spouting part 75 , and the water spouting part 75 is positioned at the water spout 74 while being connected to the boss part 84 . The spout 72 also includes a base material, a plating layer provided on the base material, and a transparent resin coating layer provided on the plating layer.

According to such a configuration, by applying a transparent resin coating to the spout 72, water scale becomes difficult to adhere to the surface of the spout 72, and cleaning performance can be improved. In addition, compared to a configuration in which a screw thread is provided on the base material and masked without providing a plating layer and a transparent resin coating, the masking process is not required, so the manufacturing process of the spout 6 can be simplified, and the manufacturing process can be simplified. Cost can be reduced.

In the second embodiment, acrylic resin is used as the transparent resin coating layer. In the case of acrylic resin, it is difficult to create fine shapes such as threads compared to ABS resin, but the water spouting portion 75 is connected to the flow path forming portion 76 inside the spout 72. Therefore, it is not necessary to provide the spout 72 with a shape such as a thread, and the water spouting portion 75 can be positioned by the flow path forming portion 76. In this way, it is possible to improve the cleaning performance of the faucet 70 while accurately connecting the water spouting portion 75.

According to the faucet 70 of the second embodiment, the water spouting portion 75 includes a water spouting plate 92 that is exposed outside the spout 72 and forming water spouting holes 99A and 99B. Further, the valve plate 86 functions as a holding portion that holds the water discharge plate 92 and is connected to the boss portion 84 . By providing such a valve plate 86, an efficient configuration can be achieved.

Further, the faucet 70 of the second embodiment further includes a screw 82 that connects the valve plate 86 of the water spouting portion 75 to the boss portion 84 of the flow path forming portion 76. By connecting using the screws 82 in this manner, the connection can be easily made and also the removal can be easily performed.

Note that the present invention is not limited to the above embodiments, and can be implemented in various other ways. For example, in the first and second embodiments, the case where the faucet is a single-lever type faucet device has been described, but the present invention is not limited to such a case, and a faucet device other than the single-lever type may be used. Although a case has been described in which the water spouting section is connected to the flow path forming section, the water spouting section may be connected to the flow path switching section within the flow path forming section. Furthermore, although a case has been described in which the flow path forming part and the water discharging part are connected by screwing, the present invention is not limited to this case, and a snap-fit type connection mechanism or the like may be adopted. Moreover, polyacetal, ABS resin, etc. are illustrative materials, and the material is not limited to these materials.

Note that by appropriately combining any of the various embodiments and modifications described above, it is possible to achieve the effects of each of them.

Although the invention has been fully described with reference to preferred embodiments and with reference to the accompanying drawings, various variations and modifications will become apparent to those skilled in the art. It is to be understood that such variations and modifications are included insofar as they do not depart from the scope of the invention as defined by the appended claims. Further, combinations and changes in the 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 faucets.

2 Faucet 4 Main body 5 Lever 6 Spout 8 Spout 10 Push button 12 Water spout 14 Channel forming section 15 Pipe section 16 First channel 18 Second channel 20 Channel switching section 22 Valve ball 24 Valve ball Holding section 26 Cam mechanism 28 Link 30 Alternate mechanism 32A, 32B Spring 34 Distal opening 36 Proximal opening 38 Channel forming section 40 Rib (contact surface)
42 First cylindrical part 44 Second cylindrical part 46 Connecting part 48 Water discharge plate 50 Holding part 52 First water discharge hole 54 Second water discharge hole 56 Inner circumference 58, 60 Step 70 Faucet 72 Spout 73 Inner wall 74 Discharge Water port 75 Water discharge part 76 Flow path forming part 77 Flow path 78 Insertion opening 79 Pipe part 80 Contact surface 82 Screw 84 Boss part 86 Valve plate 88 Operation ring 90 Switching cylinder 92 Water discharge plate 94 Mounting part 96 Plate part 99A First Water spouting hole 99B Second water spouting hole D1 Pressing direction D2 Insertion direction

Claims (13)

A spout that forms a spout that spouts hot water;
a flow path forming part that is inserted into the spout and forms a flow path for hot water to be spouted from the spout;
A water faucet, comprising: a spouting part disposed at the spout of the spout and having a spouting hole for spouting hot water flowing through the flow path of the flow path forming part to the outside of the spout;
An abutment surface is formed on an inner wall of the spout and comes into contact with the flow path forming portion so as to restrict movement of the flow path forming portion in the insertion direction;
The flow path forming part has a connecting part connected to the water spouting part, and the water spouting part is positioned at the water spout while being connected to the connecting part,
The spout includes a base material, a plating layer provided on the base material, and a transparent resin coating layer provided on the plating layer,
The faucet, wherein the abutment surface of the spout is constituted by a rib. The faucet according to claim 1, wherein the rib extends along the axial direction of the spout. The water spouting section includes a water spouting plate that is exposed outside the spout and forming the water spouting hole, and a holding part that holds the water spouting plate and is connected to the connecting part. faucet. The inner peripheral edge of the spout forming the water spout is provided with a step whose diameter decreases toward the inside of the spout, and the water spout plate is provided with a step corresponding to the step. The water faucet described in item 3. A spout that forms a spout that spouts hot water;
a flow path forming part that is inserted into the spout and forms a flow path for hot water to be spouted from the spout;
A water faucet, comprising: a spouting part disposed at the spout of the spout and having a spouting hole for spouting hot water flowing through the flow path of the flow path forming part to the outside of the spout;
An abutment surface is formed on an inner wall of the spout and comes into contact with the flow path forming portion so as to restrict movement of the flow path forming portion in the insertion direction;
The flow path forming part has a connecting part connected to the water spouting part, and the water spouting part is positioned at the water spout while being connected to the connecting part,
The spout includes a base material, a plating layer provided on the base material, and a transparent resin coating layer provided on the plating layer,
The water spouting part includes a water spouting plate that is exposed outside the spout and forming the water spouting hole, and a holding part that holds the water spouting plate and is connected to the connecting part,
The inner peripheral edge of the spout forming the water spout is provided with a step whose diameter decreases toward the inside of the spout, and the water spout plate is provided with a step corresponding to the step. plug. The connecting portion of the flow path forming portion and the holding portion of the water discharging portion are formed of a material different from acrylic resin, and have screw threads that engage with each other and are connected by screwing. The faucet according to any one of items 3 to 5. The faucet according to claim 6, wherein the connecting portion of the flow path forming portion and the holding portion of the water spouting portion are formed of a material having a bending modulus smaller than that of acrylic resin. The water spouting plate has a first water spouting hole for straight water spouting and a second water spouting hole formed of a plurality of water sprinkling holes for shower water spouting as the water spouting holes,
The flow path forming section forms a first flow path communicating with the first water spouting hole and a second flow path communicating with the second water spouting hole, and further includes a first flow path communicating with the first water spouting hole, and a second flow path communicating with the second water spouting hole. The faucet according to any one of claims 3 to 7, further comprising a flow path switching section that is movable so as to selectively close one of the second flow paths. An opening for inserting the flow path forming part is provided at one end of the spout,
The flow path switching unit further includes a push button for moving the flow path switching unit by a push operation,
The faucet according to claim 8 , wherein the push button is attached to the spout so as to close an opening different from the opening. The transparent resin coating layer of the spout is an acrylic resin,
At least the outermost layer of the push button is made of acrylic resin,
The faucet according to claim 9 , wherein a cushioning material made of a material different from acrylic resin is disposed between the push button and the spout. The faucet according to claim 5, wherein the contact surface of the spout is configured by a rib extending along the axial direction of the spout. A spout that forms a spout that spouts hot water;
a flow path forming part that is inserted into the spout and forms a flow path for hot water to be spouted from the spout;
A water faucet, comprising: a spouting part disposed at the spout of the spout and having a spouting hole for spouting hot water flowing through the flow path of the flow path forming part to the outside of the spout;
An abutment surface is formed on an inner wall of the spout and comes into contact with the flow path forming portion so as to restrict movement of the flow path forming portion in the insertion direction;
The flow path forming part has a connecting part connected to the water spouting part, and the water spouting part is positioned at the water spout while being connected to the connecting part,
The spout includes a base material, a plating layer provided on the base material, and a transparent resin coating layer provided on the plating layer,
The water spouting part includes a water spouting plate that is exposed outside the spout and forming the water spouting hole, and a holding part that holds the water spouting plate and is connected to the connecting part,
The water spouting plate has a first water spouting hole for straight water spouting and a second water spouting hole formed of a plurality of water sprinkling holes for shower water spouting as the water spouting holes,
The flow path forming section forms a first flow path communicating with the first water spouting hole and a second flow path communicating with the second water spouting hole, and further includes a first flow path communicating with the first water spouting hole, and a second flow path communicating with the second water spouting hole. and a flow path switching unit movable to selectively close one of the second flow paths,
An opening for inserting the flow path forming part is provided at one end of the spout,
The flow path switching unit further includes a push button for moving the flow path switching unit by a push operation,
the push button is attached to the spout so as to close an opening different from the opening;
The transparent resin coating layer of the spout is an acrylic resin,
At least the outermost layer of the push button is made of acrylic resin,
In the faucet, a cushioning material made of a material different from acrylic resin is disposed between the push button and the spout. The faucet according to any one of claims 1 to 12 , wherein the water spout and the spout do not come into direct contact.

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