JPS6249414B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a water faucet, and its purpose is to provide a cartridge type faucet by detachably attaching a case for storing functional parts such as a fixed plate and a movable plate to the main body. To provide a water faucet in which the case can also be disassembled into a lid member and a liner member, thereby facilitating the disassembly and assembly of functional parts during inspection, repair, etc.

Embodiments of the present invention will be described in detail below with reference to the drawings.

The drawings show a hot water mixer faucet as an example of a faucet, the first embodiment shown in FIGS. 1 to 10 shows a hot water mixer faucet, and the second embodiment shown in FIG. The third embodiment shown in FIG. 12 shows yet another two-valve type hot water mixing faucet.

First, the first embodiment will be explained.
In the figure, A is the hot water mixer faucet body, B is its functional chamber, and the bottom of the functional chamber B has a hot water inlet 8a connected to the hot water flow path a, and a cold water inlet connected to the cold water flow path a'. 8b, a mixed water outlet 9a connected to the mixed water outlet c is opened so as to constitute each vertex of the triangle, and a hot water inlet 8a and a cold water inlet 8b are provided at both ends of the base of the triangle. in the corresponding position.

Further, the functional chamber B is open at the top, and the rotating lid 10 is attached to this opening. Further, in the functional chamber B, a case 5 composed of a liner member 6 and a lid member 7 made of synthetic resin such as polyacetal resin is removably attached. This case 5 is made immovable in the vertical direction by a presser piece 12 screwed together with an internal screw 11 on the inner peripheral surface of the function chamber B at the upper end, and a protrusion (not shown) formed protrudingly formed on the bottom surface of the liner member 6 and inside the function chamber B. It is held unrotatable by a recess (not shown) in the bottom, and the bottom of the case 5 has holes so as to overlap with the hot water inlet 8a, the cold water inlet 8b, and the mixed water outlet 9a of the functional chamber B. Three through holes 13, 14, and 15 are drilled in the hole. In addition, the through holes 13, 14, and 15 are connected to the inner bottom surface of the functional chamber B, the lower surface of the case 5, and the inner bottom surface of the case 5 and the fixing plate 2.
Annular gaskets 16 and 1 are used to seal the
6', 16'' are fitted.

In this functional chamber B, the above-mentioned through hole 1 is placed on the bottom surface.
Bottomed cylindrical case 5 with holes 3, 14, and 15
Attach the liner member 7. This liner member 7 holds the fixed plate 2 unrotatably on its opposing inner surface, and has a locking protrusion 16 that regulates the rotation angle of the movable plate 3.
is formed protrudingly, and a notch 17 for engaging the lid member 6 is formed at the upper end.

The fixing plate 2 is made of ceramic (alumina oxide) formed into a disc shape with a diameter slightly smaller than the inner diameter of the liner member 7.
It is made of an Al ₂ O ₃ ) plate and has a fitting notch 18 at a position opposite to the engaging protrusion 16 formed protrudingly on the inner circumferential surface of the liner member 7, and this notch 18 is engaged with the engaging protrusion 16. The liner member 7 is housed and arranged in a non-rotatable manner so as to overlap the inner bottom surface of the liner member 7. A movable plate 3 made of a ceramic (alumina oxide Al ₂ O ₃ ) plate formed into a disk shape having a diameter slightly smaller than that of the fixed plate 2 is rotatably stacked on the fixed plate 2 .

Further, the above-mentioned engagement protrusion 1 is provided at the peripheral end of the movable plate 3.
Regulating protrusion 1 that abuts against 6 and restricts the rotation angle
9 is formed protrudingly. These fixed plate 2 and movable plate 3
and are members constituting the valve C, and the surfaces in contact with each other are mirror-finished to the extent that they can maintain sufficient watertightness. Ceramic (alumina oxide Al ₂ O ₃ ) has excellent wear resistance and corrosion resistance, so it can provide durable faucets. On the upper surface of the movable plate 3, the upper end is integrally fixed to the rotary lid 10, and a spindle shaft is an operating portion E that rotates with the rotation of a single lever handle 20 screwed onto the rotary lid 10. A groove 23 is provided which engages with the protrusion 22 at the lower end of 21. Then, the protrusion 22 at the lower end and the groove 23 on the upper surface of the movable plate 3 are engaged with each other via a disc 24 integrally molded on the spindle shaft 21 and a slip washer 25 made of polyacetal or the like, and the lid member 6 is connected to the liner member. 7 into the notch 17 at the upper end.

The lid member 6 has a bottomed cylindrical shape with a spindle insertion hole 26 in the center, and has a bottom facing upward and a peripheral wall 27 that is evenly thinned to form a flange 28 at the upper end. A stopper piece 29 is formed at a position corresponding to the opening 17 with a gap d.

The stopper piece 29 is a protrusion with a right triangular cross section,
The tapered surface 30 is used as a guide surface, and the upper surface is used as a horizontal surface 31, and the guide surface 32, which is formed continuously with the tapered surface 30 above the notch 17, is slid to bring the horizontal surface 31 to the upper edge of the notch 17. It is locked and fitted into the notch 17, and the flange 28 is brought into contact with the upper end of the liner member 7.

In this case, since the stopper piece 29 is formed to protrude from the peripheral wall 27 with a gap d, it can be easily attached by utilizing its elasticity. In addition, when removing the lid member 6, a presser piece 12 that presses and holds the top surface of the lid member 6 is attached.
At the same time, lift the spindle shaft 21, take out the case 5 itself from the function chamber B in a cartridge manner, and press a part of the stopper piece 29 from the outside through the notch opening 17. It can be disengaged and removed. At the same time, the relationship between the protrusion 22 and the groove 23 of the spindle shaft 21 is released, and the functional parts D such as the fixed plate 2 and the movable plate 3 can be easily attached and detached from inside the liler member 7, respectively. In addition, unlike the type in which the lid member 6 and the liner member 7 are screwed together, the pressing force of the movable plate 3 against the fixed plate 2 can always be kept constant, the sealing performance is stable, and the operability of the handle is also extremely good without variation. becomes. Further, since the fixing means for the fixed plate 2 and the rotation angle regulating means for the movable plate 3 are provided in the case 5, the case 5 has a simple external shape and can be easily attached to and detached from the faucet main body A. In addition, the number of parts is reduced, and an inexpensive faucet can be provided.

FIG. 6 shows another example of this case 5, in which a hooking protrusion 33 is formed protruding from the peripheral wall of the liner member 7 in place of the stopper piece 29, and this hooking protrusion 33 is attached to the liner member 7. The member 7 is engaged with a vertical notch 34 for fitting formed on the upper end of the member 7, and a horizontal notch 34' that is connected to a cross-shaped notch. At the same time, rotate the lid member 6 to attach the hooking protrusion 33.
into the horizontal notch 34' and engage it.
Similar to the above-mentioned type, in this case 5, the pressing force of the movable plate 3 against the fixed plate 2 can be kept constant at all times, the sealing performance is stable, and the operability of the handle is also very good without variation. In this case as well, when removing the case 5 in the same manner as above, first unscrew the presser piece 12 that presses and holds the top surface of the lid member 6, lift the spindle shaft 21, and take out the case 5 from the function chamber B in a cartridge manner. If the hook protrusion 33 that engages with the horizontal notch 34' is moved to the vertical notch 34, it can be removed as it is, and the functional parts D such as the fixed plate 2 and the movable plate 3 are also attached to the liner member. It can be attached and detached from inside 7.

Further, the fixing plate 2 is provided with a hot water inlet 8a, a cold water inlet 8b, and a mixed water outlet 9 of the main body A through the through holes 13, 14, and 15 of the liner member 7, respectively.
A hot water hole 35a, a cold water hole 35b, and a mixing water hole 36a, which are connected to the hot water hole 35a, are opened at locations that can be covered by the movable plate 3 no matter what position the movable plate 3 is in.
The movable plate 3 has, on its sliding surface with the fixed plate 2, one or both of the hot water hole 35a, the cold water hole 35b, and the mixing water hole 36a communicating with the mixing water hole 36a when the movable plate 3 is in the open position. A concave portion 37 is formed to allow the valve to flow, and this concave portion 37 serves as a mixing chamber, and this concave portion 37 serves as a flow path for cold water and hot water when the valve is opened. In the rotational movement of the movable plate 3, the hot water hole 35a and the cold water hole 3
The water passing areas of both holes 35a and 35b are made to change temporarily, respectively, while keeping the sum of the water passing areas of holes 5b substantially constant. Reference numeral 38 denotes a V-shaped net member, which is elastically disposed within the recess 37 to muffle the sound of running hot water and cold water during mixing in the recess 37, that is, the mixing chamber. In particular, since the net member 38 is provided in the recess 37 where the flow path suddenly changes, the sound deadening effect is great.

As described above, the recess 37 is provided on the contact surface with the fixed plate 2, and as shown in FIG. A circular arc portion 41 having a slightly larger diameter than the curved portion 39 is formed at the lower end of the projection portion 40 . Further, the rotating lid 10 is located on the functional chamber B so as to cover the open portion at the upper end of the functional chamber B, and is integrally fixed to the upper end of the spindle shaft 21 with a set screw 42. A lever handle 20 is screwed onto a handle attachment portion 44 on the side.

In addition, 45 is a discharge metal fitting rotatably connected to the mixed water discharge port c, 46 is a check valve, and 47 is an indicator showing how to operate the lever handle 20, etc. Therefore, when this lever handle 20 is rotated in the left and right direction, the spindle shaft 21 is screwed onto the rotating lid 10.
The movable plate 3 rotates integrally with this.

To explain the mixing state of hot water and cold water as the movable plate 3 rotates, first of all, Fig. 3 shows a good temperature state (hot water amount: water amount = 1:1). The regulating protrusion 19 is connected to the engaging protrusion 1
6, the hot water hole 35a becomes fully open and the cold water hole 35b becomes completely closed. On the other hand, when it is rotated clockwise, the cold water hole 35b becomes fully open, and when it is further rotated clockwise and the regulating protrusion 19 butts against the engagement protrusion 16, both the hot water hole 35a and the cold water hole 35b are fully closed. That is, when the lever handle 20 is rotated counterclockwise from the fully closed position of the hot water hole 35a and the cold water hole 35b, cold water is discharged first, then mixed water, and finally the hot field is discharged.

Next, the second embodiment shown in FIG. 11 will be described. In the figure, A is a two-valve hot water mixer faucet installed on the counter F of a washbasin (not shown), etc.;
is a functional room, and at the inner end of the functional room B there are opened a cold water inlet 8b that communicates with the cold water channel a', and a cold water outlet 9b that supplies water to the discharge port c. Further, this functional chamber B is installed horizontally on both sides of the faucet main body A, and has an open outer end and a handle 49 attached to each opening. In this functional chamber B, the case 5 is prevented from moving in the horizontal direction by a retaining piece 12 that is screwed together with an inner screw on the inner circumferential surface of the case 5, and a protrusion formed protrudingly on the bottom surface of the liner member 7 (see FIG. (not shown) and a recess (not shown) in the inner bottom surface of the functional chamber B to prevent rotation.

The case 5 is formed by a liner member 7 and a lid member 6, and the liner member 7 has a cylindrical shape with a bottom, and through holes 50 and 51 are opened in the inner wall thereof to communicate with the inlet and outlet ports 8b and 9b of the functional chamber B. A stepped portion 52 is formed on the outer circumferential surface of the upper end, and an annular fitting groove 53 is carved in the middle of the stepped portion 52. f, f′ are water supply pipes,
It is a hot water pipe. In addition, this liner member 7 includes
A fixing plate 2 made of a ceramic (alumina oxide Al ₂ O ₃ ) plate having inflow holes and outflow holes 35b and 35c communicating with the through holes 50 and 51 of the liner member 7 is installed inside the fixed plate 2 in a non-rotatable manner. is a movable plate 3 made of a ceramic (alumina oxide Al ₂ O ₃ ) plate.
Slide into contact. These fixed plate 2 and movable plate 3 are valve C
The contact surfaces are mirror-finished to the extent that they can maintain sufficient watertightness.
On the upper surface of this movable plate 3, the upper end is attached to the rotating lid 1.
a spindle shaft 2 that is integrally fixed to the rotating lid 10 and rotates as a handle 49 is screwed onto the rotating lid 10;
A groove 23 is provided which engages with the protrusion 22 at the lower end of 1. Then, the protrusion 22 at the lower end and the groove 23 on the upper surface of the movable plate 3 are engaged with each other via a disk 24 integrally molded on the spindle shaft 21 and a slip washer 25 made of polyacetal or the like, and the lid member 6 is attached to the liner. It fits so as to cover the opening of the member 7.

The lid member 6 is formed by a lid portion 6' that fits into the opening at the upper end of the liner member 7, and a cover 6'' that covers the lid portion from above.

The lid part 6' has a small diameter part 54 that fits with the upper end of the liner member 7, and a large diameter part 55 that contacts the upper end periphery. Further, a cap-shaped cover 6'' is attached by fitting the annular protrusion 57 formed on the circumferential surface into the fitting groove 53 of the liner member 7.

Therefore, when the presser piece 12 is unscrewed from the inner surface of the function chamber B, the case 5 itself can be easily attached to and removed from the function chamber B in a cartridge manner. When replacing and inspecting the internal fixed plate 2, movable plate 3, and other functional parts D, the case 5 can be easily removed by removing the cap-shaped cover 6'' and the lid part 6'.
It can be attached and detached from the inside.

The fixed plate 2 has an inflow hole and an outflow hole 35b, 35c that communicate with the through holes 50, 51, and the inside thereof is connected to a flow path 5.
The movable plate 3, which rotates as the handle 49 rotates, is brought into sliding contact with the handle 49 from above.

The movable plate 3 is formed of two members,
These two members fix the end of the net member 38 within the flow path 59, thereby muffling the sound of running water flowing within the flow path 59. Then, by rotating both handles 49, the movable plate 3 rotates, changing the water flow areas of the inlet holes on the cold water side and the hot water side, causing the water to flow out to the mixing path 1 side, where they meet and mix at a predetermined temperature. Water is discharged from the water discharge fitting 45.

Next, the third embodiment shown in FIG. 12 will be described. A is a two-valve mixing faucet main body, and 45 is a discharge fitting provided in the center thereof.

In this main body A, a cold water channel a' communicating with the water supply pipe and a mixing channel 1 communicating with the discharge fitting 45 are defined by a partition wall 60, and both flow channels a and a' are formed at an inlet port 8b provided in the partition wall 60. are connected to each other.

Although only the cold water channel a' is shown in the drawing, a hot water channel a is provided in the main body A symmetrically with the cold water channel a' via a partition 60. Also, main body A
An opening is provided on the side of the mixing passage 1 facing the inlet 8b of the partition wall 60.

5 is a case, and this case 5 is a liner member 7
and a lid member 6. The case 5 cannot be moved horizontally by screwing the holding piece 12 into the function chamber B, and cannot rotate due to the protrusion 69 of the liner member 7 and the notch 70 at the opening end of the function chamber B.
be accommodated in.

The liner member 7 is formed into a cylindrical shape with a bottom at one end, and a slit-shaped outflow hole 35c passing through the liner member 7 is formed on the circumferential surface of the liner member 7 so as to be opposite to each other along the circumferential direction. Then, this liner member 7 is attached to the main body A.
It is fitted and inserted into the functional chamber B which has a horizontal opening, and its tip opening is brought into contact with the partition wall 60, so that the inlet 8b is surrounded and the flange part 62 and the step part 63 in the main body A are formed to form a structure which will be described later. The cylindrical member 64 is held. In addition, a fixing plate 2 is attached to the inner end opening of this liner member 7.
The movable plate 3 is brought into close contact with the rear of the gasket 65 fitted in the opening, and the movable plate 3 is brought into sliding contact with the fixed plate 2 in a watertight manner and slidable in the direction of rotation.

The lid member 6 has a cap shape and has an annular projection 57 on its inner peripheral surface that fits into a fitting groove 53 carved on the outer peripheral surface of the inner end of the liner member 7. It is fitted into the fitting groove 53 and brought into contact with the tip of the liner member 7 and the packing 65 to prevent the functional parts of the fixed plate 2 and movable plate 3 installed in the liner member 7 from falling off. Therefore, the spindle shaft 21, which passes through the side wall of the liner member 7 and engages with the groove 23 at the upper end of the movable plate 3 via the disc 24 and the slip washer 25 made of polyacetal, is screwed into the functional chamber B of the holding piece 12. Once untied, the case 5 itself can be removed like a cartridge, and when the engagement between the lid member 6 and the fitting groove 53 is released, the fixed plate 2 and movable plate 3, which are functional parts, can also be attached and detached from inside the case 5. Become free. Also, the rotation angle of the movable plate 3 is the same as that of the spindle shaft 2.
1 and a notch 72 in the liner member 7.

The fixed plate 2 and the movable plate 3 are made of a corrosion-resistant and wear-resistant material such as a ceramic (alumina oxide Al ₂ O ₃ ) plate, and the movable plate 3 has a gouged surface from the sliding surface to the fixed plate 2 to the peripheral surface. It has a recessed notch 67 that connects the slotted inflow hole 35b and the slit-shaped outflow hole 35c.

Similar to the inflow hole 35b, the two recessed notches 67 are symmetrically provided in a shape that expands to the left and right of the center line. By rotating the movable plate 3, the recessed part 65 opens the inflow hole 35b of the fixed plate 2, and the inflow hole 35 opens.
b and the outflow hole 35c, and if the inflow hole 35b is closed by the sliding surface of the movable plate 3 and the fixed plate 2, both the above-mentioned holes 3
5b and 35c are blocked.

The aforementioned cylindrical member 64 has a flange 61 at one end, and this flange 61 is sandwiched between the flange portion 62 of the liner member 7 and a step portion 63 provided inside the main body A, and the flange 61 is sandwiched between the outer peripheral surface of the liner member 7 and the step portion 63 provided inside the main body A. It has a constricted part 68 which is provided to surround this with an appropriate gap and whose tip opening is bent in an inclined shape toward the center, and the constricted part 68 also has a flow path. is throttled to prevent noise when passing through valve C section. The rear end of the spindle shaft 21 is fixed to a handle (not shown) at right angles to the spindle shaft 21. Therefore, by rotating the handles on the water side and the hot water side, the movable plate 3 is rotated, and the concave cutout 67 is rotated.
If the inflow holes 35b of the fixed plate 2 are aligned with the inflow holes 35b of the fixed plate 2, the cold water channel a' and the mixing channel 1 are connected to the inflow holes 35b of the fixed plate 2,
The cold water communicates through the recessed part 67 of the movable plate 3, the slit-shaped outflow hole 35c of the liner member 7, the gap e, and the constriction part 68, reaches the outflow port 9b, and flows into the main body A from the water supply pipe and the hot water supply pipe. , the hot water is mixed by rotating the handles on the water side and the hot water side, and the discharging metal fitting 45
Discharge more.

The case 5 may be made of synthetic resin or metal, and the fixed plate 2 and movable plate 3 may be made of sintered metal, alloy, etc., which are highly wear-resistant and corrosion-resistant. Furthermore, the present invention allows flow rate adjustment and temperature adjustment by operating a single lever handle. It may also be used in a so-called single-lever type hot water mixing faucet.

Since the present invention is constructed as described above, the case that houses the functional parts such as the fixed plate and the movable plate can be detachably attached to the main body in a cartridge manner.

Therefore, there is no need to replace the faucet itself in case of replacement, inspection, or failure, which is very convenient.
Furthermore, compared to conventional faucets that open and close the valve by moving the spindle up and down, the valve is constructed from two plates, making it more compact and easier to use in a cartridge type.

In addition, the case is also made of two parts, the liner member and the lid member.
Since the parts are detachable, that is, they can be separated, there is no need to replace the entire case, which is economical, and the valve part can be assembled and removed very easily. Furthermore, since the lid member is removably locked to the liner member, the pressing force of the movable plate against the fixed plate can be kept constant at all times, resulting in stable sealing and extremely good handle operability with no variations. Faucets may be provided.

Thus, the intended purpose can be achieved.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention, and FIGS. 1 to 5 show a hot and cold water mixing faucet showing a first embodiment.
The figure is a partially cutaway front view, Figure 2 is a partially cutaway cross-sectional view of the main parts with the case removed, and Figure 3 is a cross-sectional plan view taken along line X-X. Fourth
The figure is a cross-sectional plan view taken along the Y-Y line, Figure 5 is a perspective view of the case showing the lid member and liner member disassembled, and Figure 6 is a perspective view of another embodiment of the case, showing the lid member and The liner member is disassembled, and Fig. 7 is a vertical sectional front view of the movable plate, Fig. 8 is a plan view of the movable plate, Fig. 9 is a bottom view of the same, Fig. 10 is a plan view of the fixed plate, and Fig. 11 is a plan view of the movable plate. FIG. 12 is a partially cut-away front view of the hot water/cold water mixing faucet of the second embodiment, and FIG. 12 is a partially cut-away front view of the main parts of the hot water/cold water mixing faucet of the third embodiment. In the figure, A... faucet, C... valve, 2... fixed plate, 3... movable plate, E... operating section, 5... case, 6... lid member, 7... liner member, 8a,
8b...Inflow port, 9a, 9b...Outflow port.

Claims (1)

[Claims] 1. A main body having an inlet and an outlet, a fixed plate and a movable plate that are overlapped with each other and have smoothness enough to maintain sufficient watertightness on their sliding surfaces to maintain sufficient watertightness, and an operation to operate the movable plate. The case is made up of a liner member and a lid member and is detachably attached to the main body, and the lid member is detachably attached to the liner member. A faucet that is attached to a