JP2005232734A - Head of faucet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a head of a faucet, which enables an water ejection state to be easily switched with a single touch of a button. <P>SOLUTION: This head of the faucet is equipped with a channel switching valve mechanism which makes a water supply channel 27 selectively communicate with water ejection channels 20A, 20B and 20C communicating with a plurality of ejection ports 10A, 10B and 10C each ejecting water in mutually different states, and a control lever 11 for operating the valve mechanism by the vertical tilting of an operation part 30. The valve mechanism comprises: a valve seat 21 which communicates with the respective channels, wherein a plurality of linearly-arranged circular openings 22A-22C are formed; spherical valve bodies 23A-23C which have larger diameters than these openings and which seal the openings; operation shafts 24 which are arranged along the direction of the arrangement of the openings in the side parts of the respective valve bodies; a plurality of cams 25A-25C which are arranged on the operation shafts so as to horizontally displace the valve bodies in such a manner as to separate them from the openings by their rotation; and elastic bodies 26A-26C which urge the valve bodies, displaced by these cams, to be returned to positions to be fitted into the openings. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a faucet head, for example, a faucet head for a kitchen that can easily switch a water discharge state.

  FIG. 7 shows a configuration of a head proposed by Patent Document 1 as one of faucet heads configured to be able to change the water discharge state. In FIG. 7, reference numeral 90 denotes a spout main body (head) having a plurality of spouts 91 and 92 that discharge water in different states. The head 90 has two water discharge passages communicating with the spouts 91 and 92, respectively. 93, 94, a water supply passage 95 communicating with the water supply pipe, a valve seat 96 formed with openings 96a, 96b communicating with the water discharge passages 93, 94, and either one of the openings 96a, 96b are closed. And a spherical valve body 97 fitted to the valve seat 96.

Reference numeral 98 denotes a valve body holding member for changing the position of the valve body 97 by tilting left and right about the shaft core 98a, and 98b tilts the valve body holding member 98 from the outside of the head 90. An operation portion 98c for holding the valve body 97 is configured to hold the valve body 97 and move the valve body 97 in the left-right direction as the valve body holding member 98 is tilted. That is, the user can switch the water discharge state from the head 90 by changing the position of the valve body 97 by operating the operation unit 98b to tilt left and right.
JP 2000-170224 A

  However, in order to switch the water discharge state with the head 90 described above, it is necessary to tilt the operation portion 98b in the left-right direction, and there is a problem that the operability is poor. In particular, many kitchen faucets are configured such that the faucet itself is rotatable in the left-right direction. Therefore, when the head 90 is formed in the kitchen faucet, the user can move the operation portion 98b in the left-right direction. In order to tilt the head 90, it is necessary to operate the operation unit 98b while fixing the position of the head 90. In particular, during the kitchen work, the hands are dirty and the hands may not be used freely. Therefore, it is not preferable to take time to switch the water discharge state.

  The present invention has been made in consideration of the above-mentioned matters, and the purpose of the present invention is to easily discharge water by a one-touch operation even when the user cannot use his / her hand freely. It is an object of the present invention to provide a faucet head that can be switched between.

  To achieve the above object, the faucet head according to the first aspect of the present invention selectively connects a plurality of water outlets for discharging water in different states and a water discharge passage communicating with each water outlet to the water supply passage. A circular opening provided with a valve mechanism for switching the flow path and an operation lever for operating the valve mechanism by tilting the operating portion in the vertical direction, wherein the valve mechanism communicates with each water discharge flow path and is arranged in a plurality of straight lines. A valve seat having a diameter larger than these openings, a spherical valve body that seals the opening by fitting into each opening, and a direction in which the openings are arranged at the side of each valve body An operation shaft disposed along the shaft, and a valve body that is disposed on the operation shaft and abuts against a side portion of the valve body by rotation of the operation shaft is displaced laterally so as to separate the valve body from the opening. Multiple cams and displacement by these cams It is characterized by comprising a valve body elastic member for urging the the valve body to return to a position which fits into the opening. (Claim 1)

  The cam corresponding to one valve body has a shape having two projecting portions having a phase difference of 180 ° around the operation shaft. Each time the operation shaft is rotated by 60 °, the tip of the cam becomes the valve body. A first state in which the valve body is displaced so as to move away from the opening, a second state in which the valve body fitted in the opening abuts or approaches one surface of the cam, and a valve body fitted in the opening is the cam It is configured to be switched to a third state in contact with or close to the other surface, and there are at least three valve bodies, and cams corresponding to the valve bodies are arranged in phases different from each other by 60 °. As a result, when one of these cams is in the first state and the corresponding valve body is separated from the valve seat, another cam is in the second state and one surface of the cam contacts the valve body. Restricts rotation of the operating shaft in one direction, and another cam is in the third state. There the other surface of the cam may be restricted from rotating in the other direction of the operating shaft by abutting the valve body (claim 2).

  A side wall that maintains the position of the valve body is provided at a position where the valve body is displaced by a cam, and the elastic body for the valve body is more than a perpendicular to the valve seat surface passing through the center of the displaced valve body. A coil spring formed by pressing the valve body in the direction of the opening from a position away from the opening may be used.

  A lever elastic body for urging the operation lever upward; an operation gear for transmitting a rotational force to rotate the operation shaft in accordance with a downward tilt of the operation lever; A one-way clutch that prevents the rotational force accompanying the upward tilting from being transmitted to the operation gear may be provided.

  A display tube that rotates in conjunction with the rotation of the operation shaft and an operation confirmation window that allows a part of the display tube to be confirmed from the outside may be included.

  The head of the faucet according to claim 1 can perform different water discharge by switching the valve mechanism by tilting the operation lever in the vertical direction, so that the user can easily switch the water discharge state. . In particular, the kitchen faucet may be configured so that the faucet itself can be tilted in the left-right direction, but since many of the faucets are not inclined in the vertical direction, the user can switch the water discharge state by one-touch operation of one hand. .

  In addition, since the valve mechanism pushes the valve body from the side surface to separate the valve body from the opening, the valve body can be switched from the closed state to the open state with a small force. That is, the operation lever can be lightly operated.

  The cam corresponding to one valve body has a shape having two projecting portions having a phase difference of 180 ° around the operation shaft. Each time the operation shaft is rotated by 60 °, the tip of the cam becomes the valve body. A first state in which the valve body is displaced so as to move away from the opening, a second state in which the valve body fitted in the opening abuts or approaches one surface of the cam, and a valve body fitted in the opening is the cam It is configured to be switched to a third state in contact with or close to the other surface, and there are at least three valve bodies, and cams corresponding to the valve bodies are arranged in phases different from each other by 60 °. As a result, when one of these cams is in the first state and the corresponding valve body is separated from the valve seat, another cam is in the second state and one surface of the cam contacts the valve body. Restricts rotation of the operating shaft in one direction, and another cam is in the third state. When the rotation of the operation shaft in the other direction is restricted by the other surface of the cam being in contact with the valve body (Claim 2), the three water discharge states can be sequentially switched, and the cam and the valve body Since the state switched by contact can be stably maintained, a special mechanism for stabilizing the operation state is not required, and not only can the configuration be simplified to reduce the manufacturing cost, but also robustness can be improved. .

  A side wall that maintains the position of the valve body is provided at a position where the valve body is displaced by a cam, and the elastic body for the valve body is more than a perpendicular to the valve seat surface passing through the center of the displaced valve body. In the case of a coil spring that is arranged so as to press the valve body from the position away from the opening in the direction of the opening (Claim 3), the movement range of the valve body is limited while the structure is very simple. The operation can be stabilized.

  A lever elastic body for urging the operation lever upward; an operation gear for transmitting a rotational force to rotate the operation shaft in accordance with a downward tilt of the operation lever; In the case where a one-way clutch that prevents the rotational force accompanying the upward tilting from being transmitted to the operation gear is provided (Claim 4), the user presses the operation portion downward to perform the operation once. The valve mechanism can be switched, and when the user releases his / her hand from the operation lever, the operation lever returns to its original position by the elastic force of the lever elastic body. That is, since the user can always switch the water discharge state by pushing down the operation lever downward, the operability is good.

  In the case of having a display cylinder that rotates in conjunction with the rotation of the operation shaft and an operation confirmation window that allows a part of the display cylinder to be confirmed from the outside (Claim 5), the display cylinder is connected to the display cylinder from the operation confirmation window. Since the state of the valve mechanism can be confirmed from the outside by looking at the portion, it is easy to use.

  FIG. 1 is a diagram showing an overall configuration of a hot and cold water mixing tap for a kitchen to which a head 1 according to an embodiment of the present invention is attached. 1 is a single lever type hot and cold water mixing tap as an example of a hot and cold water mixing tap for a kitchen. The hot and cold mixing tap 2 supplies a water supply pipe 3 for supplying cold water and hot water. The hot water supply pipe 4 to be operated, the operation handle 5 for adjusting the temperature by tilting in the left-right direction and the amount of water by adjusting the tilt in the vertical direction, and hot water supplied from the water supply pipe 3 and the hot water supply pipe 4 according to the operation of the operation handle 5 And a flexible tube 6 for supplying mixed water obtained by mixing as appropriate.

  A sheath tube 7 is configured to be rotatable in the left-right direction. The head of the present embodiment is attached to the distal end portion of the flexible tube 6 with the flexible tube 6 being passed through the sheath tube 7. 1 is formed. The head 1 has a water outlet 10 capable of obtaining a plurality of water discharge states, an operation lever 11 configured to be able to switch the water discharge state of the water outlet 10, and an operation confirmation window 12 capable of checking the state of the water outlet 10. Have The head 1 is configured so that it can be used, for example, either in a state where it is connected to the distal end portion 7a of the sheath tube 7 or in a state where the flexible tube 6 is pulled out by holding it.

  2 to 4 are sectional views showing the configuration of the head 1 of this embodiment, FIG. 2 is a front view showing the configuration of the head 1 as viewed from the downstream side of the mixed water flowing through the flexible tube 6, and FIG. 4 and 4 are plan views.

  As shown in FIGS. 2 and 3, the water outlet 10 formed in the head 1 of the present embodiment has a plurality of water outlets 10 </ b> A to 10 </ b> C that perform water discharge in different states, and each head 10 </ b> A is included in the head 1. Three water discharge channels 20A to 20C communicating with 10 to 10C are formed.

  More specifically, a soft shower spout 10B and a shower spout 10C are formed so as to surround the central straight water spout 10A, and the spout flow communicates with the direct discharge spout 10A. Around the channel 20A, an annular water discharge channel 20B communicating with the soft shower water discharge port 10B and an annular water discharge channel 20C communicating with the shower water discharge port 10C on the outer periphery thereof are formed.

  In addition, an annular space portion 10D communicating with the atmosphere is formed between the water discharge channel 20A and the water discharge channel 20B, and a predetermined amount is provided in the circumferential direction of the water discharge channel 20B in the middle of the water discharge channel 20B. A throttle channel 20Ba is formed at an interval, and an outside air introduction channel 20Bb that communicates the space portion 10D with the downstream side of the throttle channel 20Ba is formed at a predetermined interval around the space portion 10D. It is. In other words, uniform air introduction can be achieved by increasing the flow rate of water by the throttle channel 20Ba and drawing the outside air into the outside air introduction channel 20Bb formed immediately below.

  Therefore, the user switches the water discharge state of the head 1 so that the direct water discharge state using the water discharge port 10A, the soft shower water discharge state using the water discharge port 10B, and the normal shower water discharge using the water discharge port 10C. It is configured so that the state can be switched.

  Reference numeral 21 shown in FIGS. 2 and 4 denotes a valve seat. The valve seat 21 is formed with circular openings 22A to 22C communicating with the water discharge channels 20A to 20C and arranged in a straight line. 23A-23C is a spherical valve body which has a larger diameter than each opening 22A-22C, and seals this opening 22A-22C by fitting to each opening 22A-22C. 3 and 4 are operation shafts arranged in parallel along the direction in which the openings 22A to 22C are arranged. The operation shaft 24 includes valve bodies 23A to 23C by the rotation of the operation shaft 24. The cams 25A to 25C are formed so as to displace the valve bodies 23A to 23C in the lateral direction by pressing one of the valve bodies 23A to 23C. Further, 26A to 26C shown in FIGS. 2 and 3 are coil springs for a valve body that urge the valve bodies 23A to 23C displaced by the cams 25A to 25C to return to positions where the valve bodies 23A to 23C are fitted into the openings 22A to 22C. Valve body elastic body). Reference numeral 27 denotes a water supply passage that is connected to the flexible tube 6 in communication.

  That is, in the head 1 of the present embodiment, the valve seat 21 having the openings 22A to 22C, the valve bodies 23A to 23C, the operation shaft 24, the cams 25A to 25C, and the valve body coil springs 26A to 26C are respectively provided to the water discharge ports 10A. 10 to 10C are selectively connected to the water supply flow path 27 to form a flow path switching valve mechanism 28.

  Further, the operation lever 11 has an arc shape in accordance with the outer shape of the head 1, and both end portions thereof are pivotally supported by the pivot support portion 11a so that the operation portion 30 is inclined by about 30 ° in the vertical direction. It is configured to be rotatable. 3 shown in FIG. 3 is a contact portion of the operating portion 30, 32 shown in FIGS. 2 and 4 is a lever coil spring (lever elastic body) for urging the operating lever 11 upward, and 33 is an operating portion. A one-way clutch configured to transmit only the rotational force associated with the downward tilt of the lever 11, 34 is a lever side for transmitting the rotation associated with the downward tilt of the operation lever 11 to the operation shaft 24. The operation gear 35 shown in FIGS. 3 and 4 is a valve-side operation gear that is engaged with the lever-side operation gear 34 to transmit the rotational force to the operation shaft 24.

  Therefore, the user can perform switching of the valve mechanism 28 by operating the operation unit 30 of the operation lever 11 so as to be pushed downward. Further, only the operation lever 11 returns to the original position when the user releases the operation lever 11. When the operation lever 11 returns upward due to the elastic force of the lever coil spring 32, the rotational force is not transmitted to the operation gears 34 and 35.

  FIG. 5 is a diagram for explaining the details of the configuration of the transmission mechanism for the rotational force accompanying the tilting of the valve mechanism 6 and the operation lever 11. As shown in FIG. 5, the one-way clutch 33 includes, for example, an intermediate transmission body 3a slidably mounted in the axial direction on the operation lever 11 side in the pivot 11a of the operation lever 11, and the intermediate transmission body 33a. Has an elastic body 33b that urges the lever-side operation gear 34 to be pressed against the lever-side operation gear 34, and a clutch body 33c.

The radius r ₁ of the lever side operation gear 34 is twice the radius r ₂ of the valve side operation gear 35. Therefore, the operating shaft 24 can be rotated 60 ° simply by tilting the operating lever 11 by 30 °.

On the other hand, 36 shown in FIGS. 3 and 4 is a display interlocking gear that rotates in conjunction with the rotation of the operation shaft 24 by being fitted to the lever side operation gear 34, and 37 is integrated with the interlocking gear 36. It is a display cylinder that rotates in the direction. Since the interlocking gear 36 is the same as the radius r ₁ of the lever side operation gear 34, the rotation state of the display cylinder 37 reflects the rotation state of the operation shaft 24 as it is. Further, the display cylinder 37 is configured so that the state of the operation shaft 24 can be confirmed from the operation confirmation window 12 by giving a display indicating the state of the operation shaft 24 every 60 °.

  Returning to FIG. 5 again, each of the cams 25A to 25C formed on the operation shaft 24 has two protrusions 25Aa to 25Ca and 25Ab to 25Cb having a phase difference of 180 ° around the operation shaft 24 (the protrusions in FIG. 5). 25Cb is located on the back side of the operation shaft 24), and between the adjacent cams 25A, 25B and 25B, 25C, a flange shape for preventing the valve bodies 23A to 23C from shifting laterally. The barrier 24a is formed.

  FIG. 6 is a diagram for explaining the details of the operation of the valve mechanism 28. In FIG. 6, the openings 22A to 22C, the valve bodies 23A to 23C, the cams 25A to 25C, and the valve body coil springs 26A to 26C are respectively represented by the opening 22, the valve body 23, the cam 25, and the valve body coil spring 26. Also expressed. 6 (A) to 6 (C) show a state that occurs every time the operating shaft 24 is rotated by 60 °, and FIG. 6 (D) explains that the rotation of the operating shaft 24 is stabilized every 60 °. FIG.

  6A shows a first state in which the distal end portion 25a of the cam 25 abuts against the valve body 23 to displace the valve body 23 away from the opening 22, and FIG. FIG. 6C shows a second state in which the valve body 23 is in contact with or close to one surface 25b of the cam 25, and FIG. 6C shows that the valve body 23 fitted in the opening 22 is in contact with or close to the other surface 25c of the cam 23. The third state is shown.

  First, as shown in FIG. 6A, since the opening 22 is in an open state in the first state, the flow path through which the opening 22 communicates is in a water discharge state. This first state is obtained by rotating the operation shaft 24 by 60 ° clockwise from the third state shown in FIG. 6B, and this operation is performed by moving the operation lever 11 by 30 ° as shown in FIG. Occurs in conjunction with the downward tilting operation.

  In the present invention, when the operating shaft 24 rotates clockwise from the third state, the tip 25a of the cam 25 hits the side of the valve body 23 and pushes it laterally, so that the valve body 23 Is separated from the opening 22.

  That is, when the valve body 23 is separated from the opening 22, it is not pushed in the direction against the water flow, but rather, once the opening 22 starts to open, the valve body 23 is used by using some of the water flow. Can be displaced. Therefore, a large force is not required for the rotation of the operation shaft 24, and the user can easily switch the water discharge state by simply operating the operation lever 11.

Reference numeral 40 denotes a side wall for restricting the lateral movement range of the valve body 24 in the first state. Then, the valve body coil spring 26 urges the valve body 23 in the direction of the opening 22 from a position P farther from the opening 22 than the perpendicular line L ₁ to the surface of the valve seat 21 through the center O of the valve body 23. It is arranged to do. That is, when the side wall 40 regulates the position of the valve body 23 displaced by the cam 25, the valve body 23 appropriately receives the elastic force of the valve body coil spring 26, so that the valve body 23 becomes the opening 22. It can return to the position where it fits.

  In this example, the coil spring 26 for the valve body is disposed so as to press the valve body 23 from a direction perpendicular to the surface of the valve seat 21, thereby providing a space for the display cylinder 37. The valve body coil spring 26 may be disposed so as to press the valve body 23 from the upper left in the figure.

  In the first state, when the user pushes down the operation lever 11, the valve mechanism 28 is switched to the second state shown in FIG. At this time, the valve element 23 is fitted again into the opening 22 by the force of the coil spring 26 for the valve element, and the flow of water to the water discharge passage communicating with the opening 22 can be stopped. Further, since the valve body 23 is in a position in contact with or close to the one surface 25 b of the cam 25 and the operation shaft 24, it is possible to reliably prevent the valve body 23 from moving further to the right side than the opening 22. At the same time, even if the operating shaft 24 attempts to rotate counterclockwise (one direction) in the figure, the valve body 23 hits one surface 25a of the cam 25, so that it can be reliably prevented from rotating counterclockwise in the figure.

  In the second state, when the user pushes down the operation lever 11 again, the valve mechanism 28 switches to the third state shown in FIG. The opening 22 remains sealed, and the valve element 23 is in a position where it abuts or is close to the other surface 25c of the cam 25 and the operation shaft 24. Therefore, it is possible to reliably prevent the valve body 23 from coming off further to the right side of the opening 22 and at the same time, even if the operation shaft 24 attempts to rotate clockwise in the figure, the valve body 23 hits the other surface 25b of the cam 25. The operation shaft 24 can be prevented from rotating in this direction by providing a predetermined resistance to the clockwise rotation (in the other direction).

  In the present embodiment, the cams 25A to 25C are arranged in phases different from each other by 60 °. Therefore, when one of these cams 25A to 25C is in the first state shown in FIG. 6 (A), the remaining two cams are in the second state and the third state shown in FIGS. 6 (B) and 6 (C). State. Thus, the faucet head 1 of the present embodiment can reliably and stably rotate the operation shaft 24 by 60 degrees.

  In FIG. 6D, the cam 25 and the valve body 23 in the first state are represented by phantom lines, and the cam 25 and the valve body 23 in the second state and the third state are represented by a solid line and a one-dot chain line. Here, as indicated by the phantom line, when one cam is in the first state, the valve body 23 tends to return to the position of the opening 22 by the biasing of the valve body coil spring 26. Some rotational force is generated in the tip portion 25a slightly in the counterclockwise direction shown in the figure.

  However, as one surface 25a of the other cam 25 is shown by a solid line, it can abut against the valve body 23 and reliably prevent counterclockwise rotation in the drawing. Further, even if a rotational force in the clockwise direction shown in the figure is applied to the operating shaft 24 due to some disturbance, the other surface 25b of another cam 25 abuts against the valve body 23 as indicated by a one-dot chain line. Thus, since resistance is provided to the clockwise rotation in the figure, it is possible to prevent rotation in this direction.

  Therefore, in the present embodiment, it is not necessary to separately provide a configuration for stabilizing the rotation of the operation shaft 24 by 60 °, so that the configuration can be simplified and the manufacturing cost can be reduced and the robustness can be improved. Can be achieved. In order to obtain such an effect, the width W of the cams 25 </ b> A to 25 </ b> C arranged on the back surface is approximately the same as the diameter D of the valve body 23, and the operating shaft 24 is obliquely above the valve body 23 in the drawing. It is desirable that they are arranged.

It is a figure which shows one Example of the head of the faucet of this invention. It is sectional drawing seen from the front of the head of a faucet. It is sectional drawing seen from the side surface of the head of the said water tap. It is sectional drawing which looked at the head of the water tap from the top. It is a figure explaining the interlocking | linkage of the operation handle and valve mechanism of the head of the said water tap. It is a figure explaining the detail of operation | movement of the said valve mechanism. It is a figure which shows the example of the head of the conventional water faucet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water faucet head 10A-10C Water discharge port 11 Operation lever 12 Operation check window 20A-20C Water discharge flow path 28 Valve mechanism 21 Valve seat 22 Opening 23A-23C Valve body 24 Operation shaft 25A-25C Cam 25a Tip part 25b One side 25c Other Surface 26A-26C Coil spring for valve body (elastic body for valve body)
27 Water Supply Channel 30 Operation Unit 32 Lever Coil Spring (Lever Elastic Body)
33 One-way clutch 34, 35 Operation gear 37 Display cylinder 40 Side wall O Center of valve body L ₁ perpendicular line P Position away from opening

Claims (5)

By a plurality of water outlets that discharge water in different states, a valve mechanism for channel switching that selectively connects the water discharge flow paths communicating with the water discharge openings to the water supply flow path, and the vertical tilt of the operation unit An operation lever for operating the valve mechanism,
The valve mechanism communicates with each water discharge flow path and has a valve seat formed by forming a plurality of linear openings in a straight line, and has a larger diameter than these openings and is fitted to each opening. A spherical valve element that seals the opening, an operating shaft that is arranged along the direction in which the openings are arranged at the side of each valve element, and a rotating valve that is arranged on the operating axis and that rotates against the side of the valve element. By pressing the valve body in contact with each other, a plurality of cams that are displaced laterally so as to separate the valve body from the opening, and the valve body displaced by these cams are urged so as to return to a position where the valve body is fitted into the opening. A faucet head comprising a valve body elastic body. The cam corresponding to one valve body has a shape having two protrusions having a phase difference of 180 ° around the operation shaft,
Each time the operating shaft is rotated by 60 °, a first state in which the tip of the cam abuts against the valve body and the valve body is displaced away from the opening, and the valve body fitted to the opening is on one surface of the cam. A second state in which the valve body is fitted to or close to the opening, and a third state in which the valve body fitted in the opening is in contact with or close to the other surface of the cam; and
There are at least three valve bodies, and cams corresponding to the valve bodies are arranged in phases different from each other by 60 °, so that one of these cams is in the first state and the corresponding valve body is a valve seat. In a state where the other cam is in the second state and one surface of the cam is in contact with the valve body to restrict the rotation of the operation shaft in one direction, and the other cam is in the third state. The faucet head according to claim 1, wherein rotation of the operation shaft in the other direction is restricted by the other surface of the cam contacting the valve body.   A side wall that maintains the position of the valve body is provided at a position where the valve body is displaced by a cam, and the elastic body for the valve body is more than a perpendicular to the valve seat surface passing through the center of the displaced valve body. The faucet head according to claim 1 or 2, wherein the head is a coil spring arranged so as to press the valve body in a direction away from the opening.   A lever elastic body for urging the operation lever upward; an operation gear for transmitting a rotational force to rotate the operation shaft in accordance with a downward tilt of the operation lever; The faucet head according to any one of claims 1 to 3, further comprising a one-way clutch that prevents transmission of rotational force associated with upward tilting to the operation gear. The faucet head according to any one of claims 1 to 4, further comprising: a display cylinder that rotates in conjunction with the rotation of the operation shaft; and an operation confirmation window that allows a part of the display cylinder to be confirmed from the outside.

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