JP7089918B2 - Faucet device - Google Patents

Description

The present invention relates to a faucet device.

Patent Document 1 describes a faucet device including a fixed valve body formed by a partition body provided inside the faucet main body and a rotary valve body rotatable with respect to the fixed valve body. The rotary valve body is provided with a rotary shaft that can rotate integrally with the rotary valve body.

Japanese Unexamined Patent Publication No. 2013-0442116

It may be required to ensure the sealing property between the fixed valve body on which the rotary valve body is seated and the rotary valve body. Further, due to the influence of dimensional error of the members around the rotating shaft, the position of the central axis of the rotating shaft may be displaced so as to be inclined from the design target position. In this case, under the structure of Patent Document 1, there is a possibility that the rotary valve body may separate from the fixed valve body following the positional deviation of the rotary shaft from the target position, and the rotary valve body and the fixed valve body may be separated from each other. There is a concern that the sealing performance between the two will deteriorate.

An aspect of the present invention has been made in view of such a problem, and one of the objects thereof is to provide a technique for obtaining a stable sealing property between a rotary valve body and a fixed valve body.

The first aspect of the present invention for solving the above-mentioned problems is a faucet device. The faucet device of the first aspect rotates between the fixed valve body, the rotary valve body that seals between the fixed valve body by sitting on the fixed valve body, and the rotary valve body. A rotary shaft provided so as to be transmittable, and the rotary shaft is provided so as to be tiltable in an arbitrary direction with respect to the rotation center line of the rotary valve body.

According to the first aspect, when the position of the central axis of the rotating shaft deviates from the design target position, the rotating shaft follows the misalignment and changes the angle with respect to the rotary valve body. Can be tilted. Along with this, it is possible to avoid a situation in which the rotary valve body separates from the fixed valve body in accordance with a change in the position of the rotary shaft, and a stable sealing property can be obtained between the rotary valve body and the fixed valve body.

It is a perspective view which shows the faucet apparatus of 1st Embodiment. It is explanatory drawing which shows a part of the water supply channel of 1st Embodiment schematically. It is a side sectional view of a part of the faucet device of 1st Embodiment. It is an enlarged view of a part of FIG. FIG. 4 is a cross-sectional view taken along the line AA of FIG. FIG. 5 is a sectional view taken along line BB of the rotary valve body and the rotary shaft of FIG. FIG. 5 is a sectional view taken along line CC of the rotary valve body and the rotary shaft of FIG. It is a perspective view of the rotary valve body and the rotary shaft of 1st Embodiment. It is an exploded view of the rotary valve body and the rotary shaft of 1st Embodiment. It is a figure which looked at the rotary valve body and the rotary shaft from the arrow A of FIG. FIG. 10 is a sectional view taken along line DD of FIG. It is a perspective view of the base end side end portion of the rotation shaft of 1st Embodiment. 13 (a) is a partially enlarged view of FIG. 6, and FIG. 13 (b) is a partially enlarged view of FIG. 7. 13 (a) is a cross-sectional view taken along the line EE of FIG. 13 (a). It is explanatory drawing of the operation of the rotary handle of 1st Embodiment. It is explanatory drawing of the operation of the push button of 1st Embodiment. It is a figure which shows typically the central axis of a rotary valve body and a rotary shaft. It is another figure which shows typically the rotary valve body and the rotary shaft of 1st Embodiment. It is sectional drawing which shows the rotary valve body and a part of the rotary shaft of 2nd Embodiment. It is sectional drawing which shows a part of the rotary valve body and the rotary shaft of 3rd Embodiment. It is a perspective view which shows a part of the rotation axis of 3rd Embodiment.

Hereinafter, in the embodiments and modifications, the same components are designated by the same reference numerals, and duplicate description will be omitted. In each drawing, for convenience of explanation, some of the components are omitted as appropriate, and the dimensions of the components are appropriately enlarged or reduced. The drawings shall be viewed according to the orientation of the reference numerals. Unless otherwise specified, the term "contact" as used herein includes not only the case where the two mentioned parties come into direct contact, but also the case where they come into indirect contact via other members.

(First Embodiment)
FIG. 1 is a perspective view showing the faucet device 12 of the first embodiment. The faucet device 12 includes a faucet main body 14 that houses the components of the faucet device 12, and a water discharge unit 16 that can discharge water downward. The faucet device 12 includes an operation member 20 operated by the user, and a valve unit 22 capable of adjusting the flow rate of water discharged from the water discharge unit 16 through an operation on the operation member 20. In the present embodiment, the operating member 20 is a single lever, and the valve unit 22 can also adjust the temperature of water through the operation of the operating member 20.

FIG. 2 is an explanatory diagram schematically showing a part of a water supply channel 30 formed inside the faucet main body 14. The water supply channel 30 is for supplying water sent from the water source side through the valve unit 22 to the water discharge unit 16. The water supply channel 30 has upstream waterways 30A and 30B as a first waterway and downstream waterways 32A and 32B as a second waterway separate from the first waterway. Water whose flow rate is adjusted by the valve unit 22 is supplied to the upstream waterways 30A and 30B, and water is supplied to the downstream waterways 32A and 32B from the upstream waterways 30A and 30B.

In the upstream waterways 30A and 30B of the present embodiment, the raw water channels 30A (first upstream waterways) for supplying raw water to the downstream waterways 32A and 32B and the reformed water are supplied to the downstream waterways 32A and 32B. A modified water channel 30B (second upstream water channel) for the purpose of this is included. The reformed water is produced by reforming the raw water with the reforming material in the cartridge 34. As used herein, "reforming" means removing a specific component from raw water or adding it to raw water through physical or chemical changes.

The downstream waterways 32A and 32B of the present embodiment include a straight waterway 32A (first downstream waterway) for supplying water to the water discharge unit 16 and a shower waterway 32B (first) for supplying water to the water discharge part 16. 2 Downstream waterway) is included. The water discharge unit 16 receives the water supplied from the straight water passage 32A and discharges the water by the straight water discharge. The water discharge unit 16 receives the water supplied from the shower canal 32B and discharges the water by the shower water discharge.

The water supply channel 30 is provided with a rotary valve body 36 between the upstream water channels 30A and 30B and the downstream water channels 32A and 32B. The rotary valve body 36 of the present embodiment can switch the water flow path through which water flows to any of the upstream waterways 30A and 30B from the plurality of upstream waterways 30A and 30B. Further, the rotary valve body 36 of the present embodiment can switch the water flow path through which water flows to any of the downstream side waterways 32A and 32B from the plurality of downstream side waterways 32A and 32B.

FIG. 3 is a side sectional view of a part of the faucet device 12. The faucet device 12 transmits rotation between the fixed valve body 50, the rotary valve body 36 that seals between the fixed valve body 50 by sitting on the fixed valve body 50, and the rotary valve body 36. It includes a rotary shaft 64 that can be provided, and a first urging member 66 that urges the rotary valve body 36 in a direction approaching the fixed valve body 50.

When the rotary valve body 36 receives a rotational force from the rotary shaft 64 while seated on the fixed valve body 50, the rotary valve body 36 rotates about the rotation center line Lr while seated on the fixed valve body 50. Hereinafter, the direction along the rotation center line Lr is referred to as the X direction, which is the rotation axis direction of the rotary valve body 36. Further, one side in the X direction (right side in FIG. 3) is referred to as a base end side, and the other side in the X direction (left side in FIG. 3) is referred to as a tip end side. Further, the circumferential direction and the radial direction of the circle centered on the rotation center line Lr are simply referred to as "circumferential direction" and "diameter direction".

The faucet main body 14 of the present embodiment has a spout portion 18 provided with a water discharge portion 16 at the tip end side portion. The faucet main body 14 has an external main body component 43 and an internal main body component 44 constituting the spout portion 18. The external main body component 43 of the present embodiment has a first cylindrical portion 43a and a second tubular portion 43b protruding from the outer peripheral portion of the first tubular portion 43a. The second tubular portion 43b is provided with a water discharge portion 16. The internal main body component 44 is housed in the first cylindrical portion 43a of the external main body component 43. The internal main body component 44 has a cylindrical first main body member 46 on the proximal end side and a second main body member 48 on the distal end side.

The second main body member 48 includes a valve body accommodating portion 48a (first accommodating portion) on the proximal end side, a mechanism accommodating portion 48b (second accommodating portion) on the distal end side, and a valve body accommodating portion 48a and a mechanism accommodating portion 48b. It has a water channel forming portion 48c provided between them. The valve body accommodating portion 48a has a bottomed tubular shape that opens toward the base end side and has a bottom portion on the tip end side. The mechanism accommodating portion 48b has a bottomed tubular shape that opens toward the tip end side and has a bottom portion on the base end side. In the water channel forming portion 48c, a through hole 48d penetrating the water channel forming portion 48c in the X direction and the plurality of downstream water channels 32A and 32B described above are formed. In this figure, only the water flow direction of the single downstream waterway 32A is shown.

The faucet device 12 includes operating parts 38 and 40 that are operated when the rotary valve body 36 is rotated. The operation parts 38 and 40 of the present embodiment include a rotary handle 38 that can be rotated by receiving a rotation operation, and a push button 40 that is movable in the X direction by receiving a pressing operation.

The faucet device 12 includes an interlocking mechanism 60 capable of operating the rotary valve body 36 in conjunction with the movements of the operating parts 38 and 40. A thrust lock mechanism is incorporated in the interlocking mechanism 60 of the present embodiment. The interlocking mechanism 60 of the present embodiment is integrated with the tubular first receiving member 68, which is housed in the mechanism accommodating portion 48b of the faucet main body 14 and is rotatably supported by the faucet main body 14, and the first receiving member 68. It has a rotor 70 that can be rotated.

FIG. 4 is an enlarged view of a part of FIG. The fixed valve body 50 is provided inside the faucet main body 14 in the middle of the water supply channel 30. The fixed valve body 50 of the present embodiment is configured by a bottom surface portion of the valve body accommodating portion 48a of the second main body member 48. The seating surface on which the rotary valve body 36 of the fixed valve body 50 of the present embodiment is seated is a flat surface.

The rotary valve body 36 is housed in the valve body accommodating portion 48a of the faucet body 14. The rotary valve body 36 has a valve body facing portion 36a facing the fixed valve body 50 in the X direction, and a valve shaft portion 36b extending from the valve body facing portion 36a toward the proximal end side. The valve shaft portion 36b of the present embodiment has a bottomed tubular shape that opens toward the base end side and has a bottom portion on the tip end side. A connecting portion 59 connected to the cartridge 34 as a water channel forming member is provided at the base end side end portion of the valve shaft portion 36b.

Inside the faucet body 14, a part of the upstream water channels 30A and 30B as the above-mentioned first water channel is formed at a position facing the fixed valve body 50 in the X direction. A part of the upstream water channels 30A and 30B of the present embodiment includes a first external water channel 55 which is a part of the raw water channel 30A formed outside the valve shaft portion 36b of the rotary valve body 36, and the rotary valve body 36. The first internal water channel 57, which is a part of the reformed water channel 30B formed inside the valve shaft portion 36b of the above, is included. The first external water channel 55 communicates with the second external water channel 62 provided between the faucet main body 14 and the cartridge 34, and the first internal water channel 57 communicates with the second internal water channel 69 provided inside the cartridge 34. ..

FIG. 5 is a cross-sectional view taken along the line AA of FIG. In this figure, the hatching of the rotary valve body 36 is omitted. Valve holes 56A and 56B are formed in the fixed valve body 50. The valve holes 56A and 56B communicate with the downstream waterways 32A and 32B as the first waterways described above. The valve holes 56A and 56B of the present embodiment have a straight valve hole 56A (first valve hole) communicating with the straight water channel 32A and a shower valve hole 56B (second valve hole) communicating with the shower water channel 32B. included.

FIG. 6 is a sectional view taken along line BB of the rotary valve body 36 and the rotary shaft 64 of FIG. FIG. 7 is a sectional view taken along line CC of the rotary valve body 36 and the rotary shaft 64 of FIG. The valve body facing portion 36a of the rotary valve body 36 of the present embodiment has a disk shape. A plurality of types of water passage holes 58A and 58B that individually communicate with the plurality of upstream water channels 30A and 30B are formed in the valve body facing portion 36a. The plurality of types of water passage holes 58A and 58B include a raw water passage hole 58A (first water passage hole) communicating with the raw water channel 30A and a modified water passage hole 58B (second water passage hole) communicating with the modified water channel 30B. Water passage hole) and is included. The plurality of types of water passage holes 58A and 58B are arranged in the circumferential direction in a predetermined arrangement order. The order in which the raw water flow holes 58A and the modified water flow holes 58B are arranged alternately in the present embodiment is that the raw water flow holes 58A and the modified water flow holes 58B are located alternately. A total of two raw water flow holes 58A and two modified water flow holes 58B of the present embodiment are formed.

As shown in FIG. 5, the valve body facing portion 36a opens the valve holes 56A and 56B when the water passage holes 58A and 58B are arranged at positions overlapping the valve holes 56A and 56B in the X direction. At this time, the downstream water channels 32A and 32B communicating with the opened valve holes 56A and 56B and the upstream water channels communicating with the water passages 58A and 58B arranged at positions overlapping the valve holes 56A and 56B in the X direction. 30A and 30B are communicated with each other. The valve body facing portion 36a closes the valve holes 56A and 56B when a portion other than the water passage holes 58A and 58B is arranged at a position overlapping the valve holes 56A and 56B in the X direction. FIG. 5 shows a state in which the straight valve hole 56A is open and the shower valve hole 56B is closed. The rotary valve body 36 can change the presence or absence of communication between the valve holes 56A and 56B and the water passage holes 58A and 58B by rotating itself around the rotation center line Lr.

Returning to FIG. 4, the valve body facing portion 36a has a sealing surface 36c that is seated on the seat surface of the fixed valve body 50. The sealing surface 36c of the rotary valve body 36 is seated on the fixed valve body 50 to seal between the rotary valve body 36 and the fixed valve body 50. As a result, the communication between the valve holes 56A and 56B and the water passage holes 58A and 58B passing between the sealing surface 36c of the rotary valve body 36 and the seat surface of the fixed valve body 50 is cut off.

The first urging member 66 is arranged between the rotary valve body 36 and the cartridge 34. The first urging member 66 of the present embodiment is a coil spring which is an example of an elastic body. The first urging member 66 of the present embodiment sits on the second receiving member 72 arranged on the outer peripheral side of the valve shaft portion 36b of the rotary valve body 36, and the third receiving member 66 is arranged on the outer peripheral side of the cartridge 34. Sit on member 74. The first urging member 66 of the present embodiment constantly urges the rotary valve body 36 in the direction approaching the fixed valve body 50. The sealing surface 36c of the rotary valve body 36 is in close contact with the fixed valve body 50 by the urging force of the first urging member 66.

As shown in FIG. 3, the end portion of the rotating shaft 64 on the distal end side is rotatably supported by the faucet main body 14 via the first receiving member 68 of the interlocking mechanism 60 and the rotor 70. In the rotary shaft 64 of the present embodiment, the external force input to the operation parts 38 and 40 by the user is transmitted as a rotational force via the interlocking mechanism 60, and the received rotational force is transmitted to the rotary valve body 36.

FIG. 8 is a perspective view of the rotary valve body 36 and the rotary shaft 64, and FIG. 9 is an exploded view thereof. As shown in FIGS. 6 to 9, the rotary valve body 36 of the present embodiment has a seal member 54 for sealing between the rotary valve body 36 and the fixed valve body 50, and a valve body member 52 to which the seal member 54 is attached. The seal member 54 of the present embodiment constitutes a part of the valve body facing portion 36a, and the valve body member 52 constitutes a part of the valve body facing portion 36a and another portion. The seal member 54 is made of an elastic body such as rubber. The seal surface 36c of this embodiment is composed of a seal member 54.

10 is a view of the rotary valve body 36 and the rotary shaft 64 as viewed from the arrow A of FIG. 6, and FIG. 11 is a sectional view taken along the line DD of FIG. The seal member 54 has a pin portion 76 protruding from the main surface on the proximal end side toward the proximal end side. A plurality of pin portions 76 are provided at positions eccentric from the rotation center line Lr of the rotary valve body 36 with an interval in the circumferential direction. A head 76a having a diameter larger than that of the intermediate portion is provided at the tip of the pin portion 76. The valve body member 52 is formed with a mounting hole 78 into which the pin portion 76 is inserted. The seal member 54 is attached to the valve body member 52 by hooking the head 76a on the peripheral edge of the attachment hole 78. The pin portion 76 can be inserted into the mounting hole 78 with elastic deformation.

Hereinafter, as shown in FIG. 10, the directions orthogonal to the X direction and orthogonal to each other are referred to as the Y direction (first direction) and the Z direction (second direction). FIG. 12 is a perspective view of the base end side end portion of the rotating shaft 64. As shown in FIGS. 10 and 12, the rotary shaft 64 includes a long shaft portion 64a and a plurality of rotation transmission portions 64b protruding radially outward from the outer peripheral surface of the proximal end side end portion of the shaft portion 64a. Have. The rotation transmission portions 64b of the present embodiment project on both sides in the Y direction. The rotation transmission unit 64b is for transmitting rotation to and from the rotary valve body 36. The rotation transmission unit 64b of the present embodiment has a columnar shape extending in the Y direction, specifically, a columnar shape. The rotation transmitting portion 64b of the present embodiment has a columnar shape extending in the Y direction with an equivalent cross-sectional shape in a large range from the base end portion to the tip end side thereof.

13 (a) is a partially enlarged view of FIG. 6, and FIG. 13 (b) is a partially enlarged view of FIG. 7. FIG. 14 is a cross-sectional view taken along the line EE of FIG. 13 (a). An insertion hole 80 into which the base end side end portion of the rotary shaft 64 is inserted is formed in the central portion of the rotary valve body 36. The insertion hole 80 of the present embodiment is a bottomed hole. The insertion hole 80 has a shaft accommodating portion 80a for accommodating the shaft portion 64a of the rotating shaft 64 and a rotating receiving portion 80b for accommodating the rotation transmitting portion 64b of the rotating shaft 64. The rotation of the rotation shaft 64 and the rotation valve body 36 is transmitted to each other by contacting the rotation transmission portion 64b and the rotation receiving portion 80b.

The insertion hole 80 is formed with a retaining portion 80c that prevents the rotation shaft 64 from coming off from the insertion hole 80 by coming into contact with a part of the rotation shaft 64. The "part of the rotating shaft 64" in the present embodiment is the rotation transmitting portion 64b of the rotating shaft 64. A part of the rotation shaft 64 (rotation transmission portion 64b) is arranged between the seal member 54 and the valve body member 52. As a result, the rotary shaft 64 is connected to the rotary valve body 36 so that the position in the X direction with respect to the rotary valve body 36 is maintained. Therefore, by attaching the seal member 54 to the valve body member 52, the rotary shaft 64 can be assembled to the rotary valve body 36, and the work man-hours required for assembling the faucet device 12 can be reduced.

The retaining portion 80c of the present embodiment is a protrusion protruding radially inward from the inner peripheral surface of the insertion hole 80. The retaining portion 80c of the present embodiment is composed of a seal member 54. As a result, the seal member 54 is elastically deformed, and a part of the rotation shaft 64 (rotation transmission portion 64b) can be taken in and out from the insertion hole 80.

A convex curved surface portion 64c is provided on the base end side end surface of the shaft portion 64a of the rotation shaft 64. The curved surface portion 64c of the present embodiment has a convex spherical shape. The rotary valve body 36 has a seat surface portion 36d on which the curved surface portion 64c sits. The seat surface portion 36d of the present embodiment is provided on the bottom surface portion of the insertion hole 80. The seat surface portion 36d of the present embodiment has a concave curved surface shape having a radius of curvature equivalent to the curved surface formed by the curved surface portion 64c. The seat surface portion 36d of the present embodiment has a concave spherical shape. A recess 36e is formed in the seat surface portion 36d of the present embodiment, and has a concave spherical band shape as a concave spherical shape. As described above, the "spherical surface" in the present specification includes both a spherical band and a spherical cap.

The rotary shaft 64 is provided so as to be tiltable in any direction with respect to the rotation center line Lr of the rotary valve body 36. The arbitrary direction here means a direction orthogonal to the rotation center line Lr. From another point of view, the rotation axis 64 can be inclined to both sides in the Y direction with respect to the rotation center line Lr of the rotary valve body 36 as shown in the direction La in FIG. 6, and the direction in FIG. 7 As shown in Lb, it can be tilted to both sides in the Z direction. This condition is satisfied in a state where the curved surface portion 64c of the rotary shaft 64 is in contact with the seat surface portion 36d of the rotary valve body 36. Further, the rotary shaft 64 of the present embodiment is also provided so as to be tiltable with respect to the above-mentioned rotation center line Lr while maintaining the relative position of the rotary valve body 36 in the X direction with respect to the fixed valve body 50. The position where the central axis Lc of the rotating shaft 64 overlaps with the rotating center line Lr of the rotary valve body 36 is called a reference position. 6 and 7 show a state in which the rotation axis 64 is in the reference position. At this time, it can be considered that the rotation shaft 64 of the present embodiment is provided so as to be tiltable in an arbitrary direction from the reference position with respect to the rotation center line Lr of the rotary valve body 36.

As shown in FIGS. 13 and 14, the rotary shaft 64 has gaps 82A and 82B in the Y and X directions with the rotary valve body 36 in order to allow tilting in the Y direction with respect to the rotary valve body 36. It is set up in a vacant space. The gap 82A in the Y direction is provided between the rotary shaft 64 and the rotary valve body 36, and the gap 82B in the X direction is between the rotary transmission portion 64b of the rotary shaft 64 and the rotary receiving portion 80b of the rotary valve body 36. It is provided in. The rotary shaft 64 is provided with a third gap 82C in the Z direction from the rotary valve body 36 in order to allow tilting with respect to the rotary valve body 36 in the Z direction.

The operation of the faucet device 12 will be described. FIG. 15 is an explanatory diagram of the operation of the rotary handle 38. FIG. 15A shows a state in which straight water discharge is selected by the rotary handle 38, and FIG. 15B shows a state in which shower water discharge is selected by the rotary handle 38. The upper part of FIG. 15 shows the water discharged from the water discharge unit 16, and the lower part of FIG. 15 shows the positional relationship between the rotary valve body 36 and the fixed valve body 50. The same applies to FIG. In this figure, an origin Po is attached to the rotary valve body 36 to indicate the rotation position of the rotary valve body 36.

The interlocking mechanism 60 of the present embodiment is in a state where the rotatable range of the rotary valve body 36 is limited to a range of a predetermined first angle θ1, and the rotary handle 38 is interlocked with the rotation of the rotary handle 38. The rotary valve body 36 is rotated together with the rotary shaft 64 by the amount of rotation according to the amount of rotation. As a result, the rotary valve body 36 switches the communication partner of the specific type of water passage holes 58A and 58B to any of the downstream side waterways 32A and 32B from the plurality of downstream side waterways 32A and 32B. Along with this, the communication partner of the specific upstream waterways 30A and 30B communicating with the specific types of water passages 58A and 58B is switched to any of the plurality of downstream waterways 32A and 32B. Along with this, the rotary valve body 36 switches the operating state of the faucet device 12 so that the water discharged from the water discharge unit 16 is switched between the straight water discharge and the shower water discharge.

FIG. 16 is an explanatory diagram of the operation of the push button 40. FIG. 16 (a) shows a state in which raw water Wa is selected by the push button 40, and FIG. 16 (b) shows a state in which reformed water Wb is selected by the push button 40.

The interlocking mechanism 60 of the present embodiment rotates the rotary valve body 36 together with the rotating shaft 64 by a predetermined second angle θ2 each time the push button 40 receives a pressing operation. The second angle θ2 is an angle larger than the first angle θ1. Each time the rotary valve body 36 is rotated at an angle θ2, the rotary valve body 36 communicates with a specific downstream water channel 32A, 32B among the plurality of downstream water channels 32A, 32B in the order corresponding to the arrangement order of the plurality of water flow holes 58A, 58B. The water passage holes 58A and 58B are switched. Along with this, the communication partner of the specific downstream waterways 32A and 32B is switched to any of the plurality of upstream waterways 30A and 30B. Along with this, the rotary valve body 36 switches the operating state of the faucet device 12 so that the water discharged from the water discharge unit 16 switches between the raw water Wa and the reformed water Wb.

The effect of the above faucet device 12 will be described. The rotation shaft 64 of the present embodiment is provided so as to be tiltable with respect to the rotation center line Lr of the rotation valve body 36. This advantage will be explained.

FIG. 17 is a diagram schematically showing the central axis Lc of the rotary valve body 36 and the rotary shaft 64. 17 (a) and 17 (b) show a reference example in which the rotary shaft 64 is provided so as not to be tiltable with respect to the rotary valve body 36. FIG. 17A shows a state in which the central axis Lc of the rotating shaft 64 is arranged at the design target position Lt, and FIG. 17B shows the central axis Lc of the rotating shaft 64 tilting from the target position Lt. It shows the state of being out of position. The target position Lt of the rotation shaft 64 in the present embodiment is the center line of the through hole 48d when the center line of the through hole 48d formed in the fixed valve body 50 is perpendicular to the seat surface of the fixed valve body 50. Refers to the position where the central axis Lc of the rotation axis 64 is arranged in parallel with. In this example, the rotary shaft 64 at the target position Lt forms an angle θ3 with respect to the rotary valve body 36.

The displacement of the rotary shaft 64 from the target position Lt is, for example, a dimensional error of the rotary shaft 64 or the through hole 48d, an error of assembling the rotary shaft 64 to other members such as the first receiving member 68 and the rotor 70, and the rotary shaft 64. It is caused by the influence of warpage and the like. Under the structure of the reference example, if the central axis Lc of the rotating shaft 64 is displaced from the target position Lt, the rotary valve body 36 may be separated from the fixed valve body 50 following the positional deviation. be.

FIG. 17C shows an example in which the rotation shaft 64 is provided so as to be tiltable with respect to the rotation center line Lr of the rotary valve body 36. According to the present embodiment, the rotation axis is changed so that the angle of the rotation axis 64 with respect to the rotation valve body 36 is changed from the angle θ3 to the angle θ4 by following the positional deviation of the central axis Lc of the rotation axis 64 from the target position Lt. 64 can be tilted. Along with this, it is possible to avoid a situation in which the rotary valve body 36 is separated from the fixed valve body 50 following the positional deviation of the rotary shaft 64, and a stable sealing property is provided between the rotary valve body 36 and the fixed valve body 50. can get.

FIG. 18 is another diagram schematically showing the rotary valve body 36 and the rotary shaft 64 of the embodiment. The rotary shaft 64 can be tilted in any direction with respect to the rotation center line Lc of the rotary valve body 36. As a result, the rotary shaft 64 can rotate relative to the rotary valve body 36 around the rotary center line Lc while the rotary shaft 64 is tilted with respect to the rotary center line Lc of the rotary valve body 36. Along with this, when the rotation shaft 64 rotates in the direction Pc1 around the center axis Lc and the rotary valve body 36 rotates in the direction Pc2 around the rotation center line Lr, it rotates with respect to the fixed valve body 50 before and after the rotation. It becomes possible to maintain the seated state of the valve body 36. Therefore, stable sealing performance can be obtained between the rotary valve body 36 and the fixed valve body 50 regardless of the rotation position of the rotary valve body 36.

The rotation transmission portion 64b of the rotation shaft 64 has a columnar shape. Therefore, as compared with the case where the rotation transmission portion 64b has a spherical shape, the contact range of the rotation transmission portion 64b with respect to the rotation receiving portion 80b of the rotary valve body 36 in the column axis direction (Y direction in FIG. 13) can be widened. Minutes make it easier to transmit rotation to each other between the rotation transmission unit 64b and the rotary valve body 36.

The rotary shaft 64 has a convex curved surface portion 64c, and the rotary valve body 36 has a concave curved surface portion 36d. Therefore, the curved surface portion 64c can be brought into surface contact with the seat surface portion 36d. Therefore, when the rotary shaft 64 moves relatively to change the angle with respect to the rotary valve body 36, even if the curved surface portion 64c of the rotary shaft 64 slides on the seat surface portion 36d of the rotary valve body 36, both of them. It becomes easy to suppress wear between them.

The shaft portion 64a of the rotation shaft 64 is provided so as to be continuous with the same cross-sectional shape in the range from the central portion in the axial direction to the rotation transmission portion 64b. As a result, since there is no portion of the shaft portion 64a of the rotating shaft 64 whose cross-sectional shape changes in the axial direction, good strength can be ensured.

Other features of the above faucet device 12 will be described. As shown in FIG. 10, the raw water passage holes 58A and 58B of the rotary valve body 36 are formed so as to be located on both sides in the Y direction with respect to the rotary shaft 64. The modified water passage holes 58B of the rotary valve body 36 are formed so as to be located on both sides in the Z direction with respect to the rotary shaft 64.

(Second embodiment)
FIG. 19 is a cross-sectional view showing a part of the rotary valve body 36 and the rotary shaft 64 of the second embodiment. The seat surface portion 36d of the rotary valve body 36 of the present embodiment has a planar shape. As a result, the bottom surface portion of the rotation receiving portion 80b of the rotary valve body 36 can be formed flush with the seat surface portion 36d, and the angle change range of the rotation shaft 64 in the Y direction can be expanded. As described above, the shape of the seat surface portion 36d is not particularly limited.

(Third embodiment)
FIG. 20 is a cross-sectional view showing a part of the rotary valve body 36 and the rotary shaft 64 of the third embodiment. FIG. 21 is a perspective view showing a part of the rotating shaft 64. The rotation transmission portion 64b of the rotation shaft 64 of the present embodiment is provided with a hemispherical hemispherical portion 64e in a part of a range from the tip end side to the base end side. As a result, the angle change range of the rotation axis 64 in the Y direction can be expanded. As described above, the shape of the rotation transmitting portion 64b is not particularly limited.

A constricted portion 64d is formed inside the insertion hole 80 in the shaft portion 64a of the rotating shaft 64 of the present embodiment. As a result, when the rotation shaft 64 has a constricted portion 64d, the rotation shaft 64 is less likely to interfere with the insertion hole 80 of the rotation valve body 36, and the angle change range of the rotation shaft 64 is increased. You can make it bigger.

The present invention has been described above based on the embodiments. Next, a modification of each component will be described.

The fixed valve body 50 may be composed of a member separate from the faucet main body 14.

The first water channel communicating with the valve holes 56A and 56B may be the upstream water channels 30A and 30B, and the second water channel whose communication with the first water channel is changed by the rotary valve body 36 may be the downstream water channels 32A and 32B. ..

In providing the rotary shaft 64 so as to be able to transmit rotation to and from the rotary valve body 36, the rotary shaft 64 can be tilted in any direction with respect to the rotation center line Lr of the rotary valve body 36. The specific structure is not particularly limited. For example, the rotary shaft 64 may be connected to the rotary valve body 36 via a universal joint such as a cardan joint or a zepper joint.

In order to maintain the position of the rotary shaft 64 with respect to the rotary valve body 36 in the X direction, a part different from the rotary transmission portion 64b of the rotary shaft 64 is arranged between the valve body member 52 and the seal member 54. It may have been done. For example, when the rotary shaft 64 is connected to the rotary valve body 36 via a universal joint, even if a part of the universal joint connected to the end of the rotary shaft 64 is arranged between the valve body member 52 and the seal member 54. good.

An example has been described in which the rotary valve body 36 can change the presence or absence of communication between the first water channel and the second water channel by rotating itself around the rotation center line Lr. An example has been described in which the rotary valve body 36 of the present embodiment functions as a switching valve for switching a water passage to any of the first water channel and the second water channel from the plurality of first water channels and the plurality of second water channels. In addition to this, it may function as an on-off valve for switching the presence or absence of communication between the single first water channel and the single second water channel. It can be said that the number of the first canal and the second canal is not particularly limited. In addition to this, the rotary valve body 36 may be able to change the opening degrees of the valve holes 56A and 56B communicating with the first water channel by rotating itself around the rotation center line Lr. This assumes, for example, a case where the rotary valve body 36 functions as a flow rate control valve or a temperature control valve.

The rotary shaft 64 does not have to be inserted into the through hole 48d formed in the fixed valve body 50. The rotary shaft 64 may not be connected so as to maintain its position in the X direction with respect to the rotary valve body 36. For example, while the rotary valve body 36 is urged by the first urging member 66 in the X direction approaching the fixed valve body 50, the rotary shaft 64 is urged by another urging member in the X direction approaching the rotary valve body 36. As a result, the position of the rotary shaft 64 with respect to the rotary valve body 36 in the X direction may be maintained.

The curved surface portion 64c of the rotating shaft 64 may have a convex curved surface shape when viewed from either the Y direction or the Z direction. Similarly, the seat surface portion 36d of the rotary valve body 36 may also have a concave curved surface shape when viewed from either the Y direction or the Z direction.

The embodiments and modifications of the present invention have been described in detail above. The above-mentioned embodiments and modifications are merely specific examples for carrying out the present invention. The contents of the embodiments and modifications do not limit the technical scope of the present invention, and many of the components are changed, added, deleted, etc. within the range not deviating from the idea of the invention defined in the claims. The design can be changed. In the above-mentioned embodiment, the contents that can be changed in such a design are emphasized by adding notations such as "in the embodiment" and "in the embodiment", but the design is made even if the contents do not have such a notation. Changes are allowed. Any combination of the above components is also effective as an aspect of the present invention. The hatching attached to the cross section of the drawing does not limit the material of the object to which the hatching is attached.

The following technical ideas can be derived by generalizing the invention embodied by the above embodiments and modifications. Hereinafter, the aspects described in the problem to be solved by the invention will be described.

In the first aspect, the rotary valve body of the second aspect has a seal member for sealing between the rotary valve body and the fixed valve body, and a valve body member to which the seal member is attached. The rotary shaft may be maintained in a position in the rotary axis direction of the rotary valve body with respect to the rotary valve body by arranging a part of the rotary shaft between the seal member and the valve body member. ..
According to this aspect, by attaching the seal member to the valve body member, the rotary shaft can be assembled to the rotary valve body, and the work man-hours required for assembling the faucet device can be reduced.

In the first or second aspect of the faucet device of the third aspect, the rotary shaft has a shaft portion and a rotation transmission portion for transmitting rotation between the shaft portion and the rotary valve body. The rotation transmitting portion may have a columnar shape protruding from the shaft portion to the outside in the radial direction of the rotary valve body.

In any one of the first to third aspects, the faucet device of the fourth aspect is provided with a convex curved curved surface portion on one end surface of the rotating shaft, and the curved surface portion sits on the rotary valve body. It may have a concave curved seat surface portion.
According to this aspect, since the curved surface portion of the rotary shaft comes into surface contact with the seat surface portion of the rotary valve body, when the curved surface portion slides on the seat surface portion, wear between the two can be suppressed.

12 ... Faucet device, 36 ... Rotary valve body, 36d ... Seat surface portion, 50 ... Fixed valve body, 52 ... Valve body member, 54 ... Seal member, 64 ... Rotating shaft, 64b ... Rotation transmission unit, 64c ... Curved surface portion.

Claims (4)

Fixed valve body and
A rotary valve body that seals between the fixed valve body and the fixed valve body by sitting on the fixed valve body,
A rotary shaft provided so as to be able to transmit rotation to and from the rotary valve body is provided.
The rotary shaft and the rotary valve body are faucet devices provided so that the rotary shaft can be tilted in an arbitrary direction with respect to the rotation center line of the rotary valve body. The rotary valve body has a seal member that seals between the fixed valve body and a valve body member to which the seal member is attached.
The rotary shaft is claimed so that a part of the rotary shaft is arranged between the seal member and the valve body member so that the position of the rotary valve body in the rotary axis direction with respect to the rotary valve body is maintained. Item 1. The faucet device according to Item 1. The rotary shaft has a rotary shaft portion and a rotary transmission portion for transmitting rotation between the rotary valve body and the rotary valve body.
The faucet device according to claim 1 or 2, wherein the rotation transmission unit protrudes radially outward from the shaft portion. A curved surface having a convex curved surface is provided on one end surface of the rotating shaft.
The faucet device according to any one of claims 1 to 3, wherein the rotary valve body has a concave curved seat surface portion on which the curved surface portion sits.

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