JP4527847B2 - Single lever faucet - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a single lever type faucet that discharges water by rotating an operation lever in the vertical direction.
[0002]
[Prior art]
Conventionally, as a faucet which discharges tap water etc., the universal faucet by a rotary operation handle is common, for example, has composition as shown in FIG. That is, the faucet body 39 made of a bronze casting is provided with a water supply portion 40 in the front-rear direction provided on the rear side, a vertical attachment portion 41 provided on the upper surface of the central portion, and a downward curve on the front side. The water supply passage 43 is formed in the water supply portion 40, the water discharge passage 46 is formed from the attachment port 44 of the attachment portion 41 to the water discharge port 45 of the water discharge portion 42, and the water supply passage 43 The water supply channel 43 and the water discharge channel 46 communicate with each other through a communication hole 48 formed in a partition wall 47 that partitions the water discharge channel 46.
[0003]
Reference numeral 49 denotes a vertical plug rod inserted into the water discharge passage 44 of the attachment portion 41, and the upper portion projects upward from the attachment port 44. Reference numeral 50 denotes an insertion hole formed on the lower side of the stopper rod 49, and a rod body 51 is provided in the insertion hole 50 so as to be movable up and down, and a disk-like pedestal 52 is fixed to the rod body 51. A packing 53 made of synthetic rubber is provided on the lower surface, and presses against an annular valve seat 54 protruding from the peripheral edge of the insertion hole 50 when the water stops. A threaded portion 55 is formed on the stopper rod 49 and is screwed into the inner surface of the mounting portion 41 to close the water discharge passage 46.
[0004]
56 is a presser fitting through which the upper part of the stopper rod 49 is inserted, and a triangular packing 57 is provided inside, and this packing 57 is supported in the presser fitting 56 by a receiving plate 58. Reference numeral 59 denotes an operation handle, which is fixed to the upper end portion of the plug bar 49 with a screw 60, and the presser fitting 56 is screwed into the mounting portion 41 of the faucet body 39, so that the plug bar 49, packing 57, presser fitting 56, operation handle. A universal faucet body 61 composed of 59 is attached to the faucet body 39.
[0005]
Then, when the operation handle 59 is rotated counterclockwise and loosened, the stopper rod 49 moves upward, the packing 57 is pushed up by the water pressure and detached from the valve seat 54, and from the water supply channel 43 of the faucet body 39 through the communication hole 48. Then, water flows into the water discharge channel 46 and is discharged from the water discharge port 45 of the water discharge channel 46. Further, the water discharge flow rate can be appropriately adjusted by rotating the operation handle 59.
[0006]
[Problems to be solved by the invention]
However, in the case of the conventional water faucet, since the flow rate is adjusted by rotating the operation handle 59, a relatively large force is required for the operation, and the rotation operation of the operation handle 59 is repeated. As a result, the rubber-made packing 57 deteriorates, and there is a problem that abnormal noise is generated due to friction caused by the turning operation of the operation handle 59.
[0007]
In addition, when the packing 57 is deteriorated, even if the operation handle 59 is tightened, water cannot be completely stopped, water leakage occurs, and it is necessary to tighten the operation handle 59 when water is stopped. .
[0008]
The present invention has been made in consideration of the above-mentioned matters, and the purpose thereof is to adjust the flow rate and stop the water with a small force, to prevent useless water discharge, and to extend the life. At the same time, it is to provide a single lever type faucet capable of suppressing the occurrence of abnormal noise.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the single lever type faucet of the present invention adjusts the faucet base, the water discharge pipe held by the water faucet base, and the flow rate of water sent from the faucet base to the water discharge pipe. A single lever type faucet equipped with a flow rate adjusting mechanism for
The faucet base has a holding part for holding the flow rate adjusting mechanism, an introduction path for introducing water into the holding part, and a lead-out path for leading water from the holding part to the water discharge pipe The flow rate adjusting mechanism is provided on a fixed disk having an introduction through hole communicating with the introduction path and a lead-out through hole communicating with the lead-out path, and movably provided on an upper surface of the fixed disk. A movable disk having a recess formed in a joint surface with the fixed disk, a support member that supports the fixed disk and the movable disk, and an operation lever that moves the movable disk by rotating in a vertical direction, By rotating the operation lever, the movable disk is moved to a closed position where the concave portion closes the introduction through hole and an open position where the concave portion straddles the introduction through hole and the extraction through hole. Is configured so as to,
Further, the holding portion has a concave space formed by the bottom wall portion and the peripheral wall portion, wherein the bottom wall portion of the concave space of the upper surface, viewed from the projecting body annular provided, communicating with the inlet holes of inner the fixed disk of the projecting member, outside the projecting member is in communication with the outlet through-hole of the fixed disk,
Moreover, the derivation path is
An outlet port to which the water discharge pipe is connected;
The upstream end communicates with the lead-out through hole of the fixed disk via the recessed space, and the downstream end includes a plurality of flow paths communicating with the lead-out port portion (Claim 1). .
In this case, before Symbol plurality of flow path upstream end communicates with the outside of the projecting member in the concave space,
Further, the fixed disk is disposed on the upper surface of each of the annular small packing disposed inside the protruding body and the annular large packing disposed on the periphery of the bottom wall portion,
In addition, the introduction through-hole has a circular shape at the lower end opening, the upper end opening is formed in an elliptical shape having a larger area than the lower end opening, and the lead-out through hole has an upper end opening and a lower end opening. Preferably, the upper end opening is substantially crescent-shaped and has an area larger than that of the lower end opening.
[0010]
With the above configuration, the single lever can adjust the flow rate and stop the water with a small force, prevent wasteful water discharge, extend the service life, and suppress the generation of abnormal noise. A water tap can be provided.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a longitudinal sectional view schematically showing a configuration of a single lever type faucet (hereinafter simply referred to as a faucet) D according to a first embodiment of the present invention, and FIG. FIG. 2B is a bottom view schematically illustrating the configuration of the faucet base A, and FIG. 3A is a plan view schematically illustrating the configuration of the flow adjustment mechanism C. FIG. FIG. 3B is a rear view schematically showing the configuration of the rear part of the faucet base A. FIG.
The faucet D is, for example, a wall-mounted single faucet, and includes a faucet base A, a water discharge pipe B held by the water faucet base A, and water sent from the water faucet base A to the water discharge pipe B. And a flow rate adjusting mechanism C for adjusting the flow rate.
[0012]
The faucet base A includes a holding part 1 for holding the flow rate adjusting mechanism C, an introduction path 2 for introducing water into the holding part 1, and water from the holding part 1 to a water discharge pipe B. And a derivation path 3 for derivation.
[0013]
The holding portion 1 includes a bottom wall portion 4 and a peripheral wall portion 5 that form a recessed space S. The bottom wall portion 4 is formed, for example, so as to have a circular shape in plan view, and the peripheral wall portion 5 is continuously provided upward from the peripheral edge of the bottom wall portion 4.
[0014]
Further, a projecting body 4a having an annular shape in plan view is provided on the upper surface of the bottom wall portion 4. The inside of the projecting body 4a communicates with the introduction path 2, and the outside of the projecting body 4a is The lead-out path 3 communicates.
[0015]
The upstream end of the introduction path 2 communicates with a connection port (not shown) provided at the downstream end of a water supply pipe (not shown) by appropriate means (for example, screwing / seal tape). An introduction port 2a that is fixed in a state is provided.
[0016]
The lead-out path 3 includes a lead-out port portion 3a to which the water discharge pipe B is connected, and a plurality of small-diameter channels 3b whose upstream end communicates with the recessed space S and whose downstream end communicates with the lead-out port portion 3a. 3b (see FIG. 2B).
[0017]
The upstream end of the water discharge pipe B is rotatably connected to the outlet port 3a via a packing 6a and a holding member 6b, and the packing 6a and the holding member 6b are screwed to the outlet port 3a. Is held by a cap nut 6c.
[0018]
Further, a resin cap 9 provided with a rectifier 8 at the water discharge port 7 is attached to the downstream end of the water discharge tube B.
[0019]
FIG. 4 is an exploded perspective view schematically showing the configuration of the flow rate adjusting mechanism C. As shown in FIG.
The flow rate adjusting mechanism C is provided movably on a fixed disk 12 having an introduction through hole 10 communicating with the introduction path 2 and a lead-out through hole 11 communicating with the lead-out path 3, and an upper surface of the fixed disk 12. A movable disk 14 having a recess 13 (see FIG. 1 and the like) formed on the joint surface with the fixed disk 12, a support member 15 that supports the fixed disk 12 and the movable disk 14, and the movable by rotating in the vertical direction. And an operation lever 16 for moving the disk 14.
[0020]
The fixed disk 12 is made of ceramic, has the introduction through hole 10 at the center thereof, and has the lead-out through hole 11 on the side of the introduction through hole 10. In addition, engagement concave portions 17 and 17 that are engaged with engagement pieces 33 and 33 of the support member 15 to be described later are provided at positions facing the peripheral edge portion.
[0021]
The introduction through-hole 10 has a circular lower end opening, and an upper end opening formed in an elliptical shape having a larger area than the lower end opening. The lead-out through-hole 11 is formed so that the upper end opening and the lower end opening are substantially crescent shaped, and the upper end opening is larger in area than the lower end opening.
[0022]
The fixed disk 12 having the above-described configuration is disposed on the annular small packing 18 disposed on the inner side of the protruding body 4 a provided on the bottom wall portion 4 of the holding portion 1 and the periphery of the bottom wall portion 4. It arrange | positions on the upper surface of the cyclic | annular large packing 19 made.
[0023]
The movable disk 14 is made of the same material as the fixed disk 12 and is slidably mounted on the fixed disk 12 in a watertight state, and has the concave portion 13 at the center of the lower surface. In addition, locking recesses 20 and 20 are provided at positions facing the peripheral edge, and a guide 22 having locking pieces 21 and 21 locked to the locking recesses 20 and 20 at both ends. Is mounted on the upper surface of the movable disk 14.
[0024]
The guide 22 is made of, for example, a synthetic resin material, and a protruding body 23 is provided on the upper surface thereof. A support portion 24 is provided at the center of the protruding body 23.
[0025]
The support member 15 is made of, for example, a synthetic resin, and includes an upper member 25 and a lower member 26 that can be detachably locked to the upper member 25.
[0026]
The upper member 25 has support pieces 27 and 27 in a suspended manner at positions opposed to the peripheral edge of the lower portion, and a support body 28 for supporting the operation lever 16 on the upper portion.
[0027]
A locking portion 27 a is formed at the lower end of the engagement piece 27.
[0028]
The support 28 has a guide hole 29 at the center of the upper surface thereof, and has a through hole 30 at a position orthogonal to the guide hole 29. Further, at the opposing positions of both side walls of the guide hole 29, ridges 31 and 31 (see FIG. 5A) are formed.
[0029]
The lower member 26 includes an annular member 32 and engagement pieces 33, 33 erected at positions facing the annular member 32.
[0030]
A locking portion 33 a that can be locked to the locking portion 27 a of the engaging piece 27 of the upper member 25 is formed at the upper end portion of the engaging piece 33.
[0031]
The support member 15 having the above configuration can accommodate the fixed disk 12, the movable disk 14, and the guide 22. That is, with the upper member 25 and the lower member 26 removed, for example, the fixed disk 12, the movable disk 14, and the guide 22 are sequentially accommodated in the lower member 26, and then the upper member 25 is engaged with the lower member 26. By stopping, the support disk 15 can accommodate the fixed disk 12, the movable disk 14 and the guide 22. And the supporting member 15 in this accommodation state can be covered with the cover 34 made from a synthetic resin, for example.
[0032]
The operation lever 16 is made of, for example, a synthetic resin, and is configured to be interlocked with the movable disk 14 via the interlocking member 35 and the guide 22.
[0033]
The interlocking member 35 is made of, for example, a metal material, and has a shaft hole 35a in the lower part and a lower end protrusion 35b in the lower end part. The lower portion of the interlocking member 35 is inserted through the guide hole 29 of the support body 28 by the pin 36 penetrating the through hole 30 and the shaft hole 35a of the support body 28, and the lower end protrusion 35b is connected to the guide 22. It will be hold | maintained in the state inserted by the support part 24 of this. Further, the interlocking member 35 has a partial arc surface 35c at a shaft support portion that is pivotally supported by the pin 36, and the protruding body 31 of the support 28 is slidably contacted with the partial arc surface 35c. It is configured to manage.
[0034]
The operation lever 16 includes a mounting portion 16a and a gripping portion 16b extending forward from the end of the mounting portion 16a.
[0035]
A holding portion 16c into which the upper portion of the interlocking member 35 is fitted is formed inside the mounting portion 16a, and a screw 37 inserted through the screw hole 16d of the holding portion 16c is a fitting recess of the interlocking member 35. By engaging with 35d, the operating lever 16 is fixed to the interlocking member 35, and when the operating lever 16 is rotated, the movable disk 14 moves in the front-rear direction via the interlocking member 35 and the guide 22.
[0036]
In addition, 38 is a metal bushing, for example, and has an external thread part 38a screwed into the internal thread part 4a formed inside the upper end part of the peripheral wall part 4 of the holding part 1.
[0037]
5A is a longitudinal sectional view schematically showing a part of the configuration of the flow rate adjusting mechanism, FIG. 5B is a cutaway side view of FIG. 5A, and FIG. It is the XX line top view of A), (D) is the YY line bottom view of (A).
Next, the operation of the flow rate adjusting mechanism C configured as described above will be described.
The solid line in FIG. 1 shows the water faucet D in a water-stopped state, the operation lever 16 is located at the lower end, and the recess 13 of the movable disk 14 is the introduction through hole of the fixed disk 12 as shown in FIG. 10 is blocked.
[0038]
When the operation lever 16 is rotated slightly upward from this water stop state, the interlocking member 35 is brought into an upright state as shown in FIG. 5A, and the concave portion 13 of the movable disk 14 becomes the introduction through hole of the fixed disk 12. 10 and the lead-out through hole 11, and the lead-out through hole 11 is in a half-open state. At this time, the introduction through-hole 10 and the lead-out through-hole 11 communicate with each other through the recess 13, and only a small amount of water from the introduction path 2 into the holding section 1 is led to the water discharge pipe B through the lead-out path 3. It will be.
[0039]
When the operation lever 16 is further rotated upward, as shown in FIG. 6B, the concave portion 13 of the movable disk 14 is slightly moved, the lead-out through-hole 11 is fully opened, and a large amount of water is discharged. It will be led out to the water pipe B.
[0040]
As described above, the recess 13 of the movable disk 14 is moved by the rotation of the operation lever 16, the open area of the lead-out through hole 11 of the fixed disk 14 is adjusted, and the flow rate of the water led out to the discharge pipe B is appropriately adjusted. be able to.
[0041]
In the faucet D having the above-described configuration, since the operation lever 16 is configured to rotate in the vertical direction, compared to a faucet of a type that rotates in the left-right direction or rotates around the axis, Operations for adjusting the flow rate and stopping water can be performed with a smaller force.
[0042]
Further, in the faucet D having the above-described configuration, since the fixed disk 12 and the movable disk 14 constituting the flow rate adjusting mechanism C are formed of ceramic, durability and heat resistance of the faucet D itself are improved. In addition to prolonging the service life, water can be completely stopped, water leakage can be reliably prevented, and unnecessary water discharge can be prevented. In addition, abnormal noise hardly occurs with the operation of the operation lever 16.
[0043]
Further, in the faucet D having the above-described configuration, the flow rate adjusting mechanism C can be incorporated in the faucet base A that holds the water discharge pipe B without having to provide a useless space. Can be.
[0044]
The faucet D having the above-described configuration is not limited to a wall-mounted type in which the introduction path 2 is horizontally oriented, and may be a hooked type in which the introduction path 2 is formed in a vertical direction, for example.
[0045]
In addition, “water” in the present invention is a concept including hot water, and the single lever type faucet D of the present invention can be installed and used on the downstream side of the hot water supply equipment.
[0046]
【The invention's effect】
As described above, according to the present invention, the flow rate can be adjusted and the water can be stopped with a small force, wasteful water discharge can be prevented, the life can be extended, and the occurrence of abnormal noise can be suppressed. A single lever faucet capable of being provided can be provided.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view schematically showing a configuration of a single lever type faucet according to a first embodiment of the present invention.
FIG. 2A is a plan view schematically showing the configuration of a faucet base and a flow rate adjustment mechanism in the above embodiment, and FIG. 2B is a bottom view schematically showing the configuration of the faucet base. is there.
FIG. 3A is a longitudinal sectional view schematically showing the configuration of the front portion of the faucet base, and FIG. 3B is a rear view schematically showing the configuration of the rear portion of the faucet base. is there.
FIG. 4 is an exploded perspective view schematically showing a configuration of the flow rate adjusting mechanism.
5A is a longitudinal sectional view schematically showing a configuration of a part of the flow rate adjusting mechanism, FIG. 5B is a cutaway side view of FIG. 5A, and FIG. It is the XX line top view of A), (D) is the YY line bottom view of (A).
6A is an explanatory diagram schematically illustrating the configuration of a flow rate adjustment mechanism in a closed state, and FIG. 6B is an explanatory diagram schematically illustrating the configuration of a flow rate adjustment mechanism in an open state. is there.
FIG. 7 is an explanatory view schematically showing a configuration of a conventional water faucet.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Holding part, 2 ... Introducing path, 3 ... Deriving path, 3a ... Deriving port part, 3b, 3b ... Multiple flow paths, 4 ... Bottom wall part, 4a ... Ring-shaped protruding body, 5 ... Peripheral wall part, 10 DESCRIPTION OF SYMBOLS ... Introduction through-hole, 11 ... Derivation through-hole, 12 ... Fixed disk, 13 ... Recessed part, 14 ... Movable disk, 15 ... Support member, 16 ... Operation lever, A ... Water faucet base, B ... Water discharge pipe, C ... Flow rate adjustment Mechanism, D ... Single lever faucet, S ... Recessed space.

Claims (2)

A single lever faucet comprising a faucet base, a water discharge pipe held by the faucet base, and a flow rate adjusting mechanism for adjusting the flow rate of water sent from the water faucet base to the water discharge pipe. ,
The faucet base has a holding part for holding the flow rate adjusting mechanism, an introduction path for introducing water into the holding part, and a lead-out path for leading water from the holding part to the water discharge pipe The flow rate adjusting mechanism is provided on a fixed disk having an introduction through hole communicating with the introduction path and a lead-out through hole communicating with the lead-out path, and movably provided on an upper surface of the fixed disk. A movable disk having a recess formed in a joint surface with the fixed disk, a support member that supports the fixed disk and the movable disk, and an operation lever that moves the movable disk by rotating in a vertical direction, By rotating the operation lever, the movable disk is moved to a closed position where the concave portion closes the introduction through hole and an open position where the concave portion straddles the introduction through hole and the extraction through hole. Is configured so as to,
Further, the holding portion has a concave space formed by the bottom wall portion and the peripheral wall portion, wherein the bottom wall portion of the concave space of the upper surface, viewed from the projecting body annular provided, communicating with the inlet holes of inner the fixed disk of the projecting member, outside the projecting member is in communication with the outlet through-hole of the fixed disk,
Moreover, the derivation path is
An outlet port to which the water discharge pipe is connected;
A single lever-type faucet comprising an upstream end communicating with the lead-out through hole of the fixed disk via the recessed space, and a downstream end comprising a plurality of flow paths communicating with the lead-out port. . Before SL plurality of flow paths has an upstream end communicating with the outside of the projecting member in the concave space,
Further, the fixed disk is disposed on the upper surface of each of the annular small packing disposed inside the protruding body and the annular large packing disposed on the periphery of the bottom wall portion,
In addition, the introduction through-hole has a circular shape at the lower end opening, the upper end opening is formed in an elliptical shape having a larger area than the lower end opening, and the lead-out through hole has an upper end opening and a lower end opening. The single lever type faucet according to claim 1, wherein the single lever type faucet is substantially crescent shaped and has an upper end opening larger in area than a lower end opening.

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