JP2006016811A - Faucet device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a well operable faucet device for allowing easy cleaning of portions which are normally hidden behind operation keys. <P>SOLUTION: The faucet device 1 comprises two on-off valve units for opening/closing a flow path and a cover 9 for covering them. The on-off valve units have operation portions 7a, 8a at the upper parts for operating on-off valves built therein. The cover 9 consists of a face cover 9a located on the face of the faucet device 1 and a side cover located from side to side. In order to thrust the operation portions 7a, 8a of the on-off valve units for opening/closing operation, the operation keys 2, 3 are pivoted in a rising and falling manner to two opening portions 9s, 9t opened to the face cover 9a, respectively. A stopper provided on the operation key 2 is moved apart from an elastic locking piece and a stopper provided on the arm of the operation key 3 is moved apart from an arm insertion port, and then the operation keys 2, 3 can be largely opened. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a faucet device installed in a bathroom or the like, and more particularly to a faucet device capable of switching between water discharge and water stop by a pressing operation.

  Various types of faucet devices installed in bathrooms and bathroom vanities have been developed in the past, but in recent years, they have a function to switch between water discharge and water stop by pressing. Adoption of water faucet devices is increasing (for example, see Patent Document 1). The faucet device (water discharge device) described in Patent Document 1 includes a lever that swings in a seesaw shape around a support shaft, and when this lever is pressed, the valve body of the diaphragm type on-off valve is in an open position. By alternately moving to the closed position, switching between the water discharge state and the water stop state is performed.

JP-A-10-169801

  In the case of the faucet device (water discharge device) described in Patent Document 1, water flows into the lower side of the operation lever, and dirt such as scale is likely to accumulate. There is a risk of malfunction or operational trouble. Moreover, in order to remove these stains, it is necessary to remove the entire operation panel around the operation lever. However, these operations are troublesome and difficult for ordinary people, and an installation error accompanying the attachment / detachment of the operation panel occurs. There is a possibility.

  The problem to be solved by the present invention is to provide a faucet device that has good operability and can easily clean a portion that is hidden by an operation key in normal times.

  The invention according to claim 1 is a water faucet device having a function of alternately switching between a water discharge state and a water stop state by a pressing operation of an operation key, the open / close valve unit for opening and closing a flow path, and the open / close valve unit A cover that covers at least a part, an operation key that is pivotally supported by an opening formed in the cover to open and close the opening / closing valve unit, and a undulation angle of the operation key within a predetermined range And a restricting means that can be set and released, and when the restricting means is released, the operation key can stand up beyond the predetermined range.

  With such a configuration, normally, the operation key undulates within a certain angle range by simply pressing the operation key whose undulation angle is regulated within a predetermined range by the regulating means, and the water discharge Since the state and the water stop state are alternately switched, the operability is good. The “predetermined range” referred to here is a movement range of the operation key in which the opening / closing operation of the opening / closing valve unit can be performed, and it is desirable that the operation key is restricted so as to make the standing angle as small as possible. Further, if the restricting means is released, the operation key can be raised beyond the predetermined range, so that the portion hidden by the operation key can be easily cleaned in normal times. Note that the rising angle of the operation key when the predetermined range is exceeded can be, for example, an angle at which a finger can be inserted into the opening, but is preferably at least about 70 degrees from the closed state of the operation key. desirable.

  The invention described in claim 2 is characterized in that the cover fixing means for the on-off valve unit is provided at a position covered by the operation key. With such a configuration, the means for fixing the cover to the on-off valve unit (for example, screws) is not visible from the outside within the range of normal opening / closing operations, so that the appearance quality is improved.

  The invention described in claim 3 is characterized in that a protective projection protruding from the exposed surface of the operation key is provided on the exposed surface of the cover located around the operation key. With such a configuration, even if the shower head accidentally falls or an article such as a shampoo bottle falls in the event of an earthquake, the article comes into contact with the operation key by the protective projection. Therefore, water discharge due to malfunction can be prevented.

  The invention described in claim 4 is characterized in that an opening that can be opened and closed is provided in a part of the cover located below the on-off valve unit. With such a configuration, it is possible to visually check the water stop cock etc. inside the cover, and to insert a hand or a tool into the cover. improves.

  In a faucet device having a function of alternately switching between a water discharge state and a water stop state by pressing an operation key, an on-off valve unit that opens and closes a flow path, a cover that covers the on-off valve unit, and opening and closing of the on-off valve unit An operation key that is pivotally supported by an opening formed in the cover for performing an operation, and a setting / releasable restricting means for restricting the undulation angle of the operation key within a predetermined range, When the restricting means is released, the operation key can stand beyond the predetermined range, so that the operability is good and the portion hidden by the operation key is easily cleaned in normal times.

  Hereinafter, a faucet device according to an embodiment of the present invention will be described with reference to the drawings. 1 is a perspective view showing a state in which a faucet device according to an embodiment of the present invention is installed in a bathroom, FIG. 2 is a perspective view of the faucet device shown in FIG. 1, and FIG. 3 is a perspective view of the faucet device shown in FIG. 4 is a partially cutaway side view of the faucet device shown in FIG. 2, FIG. 5 is a cross-sectional view taken along the line AA in FIG. 4, and FIG. 6 is a cross-sectional view taken along the line BB in FIG.

  In the present embodiment, as an example, the faucet device 1 is installed on a wall surface W of a bathroom as shown in FIG. Two operation keys 2 and 3 are arranged in two upper and lower stages on the front portion of the faucet device 1, and a temperature adjustment dial 4 is arranged on the upper side surface of these operation keys 2 and 3. When the operation key 2 is pressed, water discharge and water stop from the currant 5 are alternately repeated, and when the operation key 3 is pressed, water discharge and water stop from the shower 6 are alternately repeated. And the temperature of the hot water discharged from the currant 5 and the shower 6 can be set by rotating the temperature adjustment dial 4. In addition, in this embodiment, although expressed as water discharge and water stop, these terms do not limit the object to discharge and stop to water, but have a wide meaning including water to hot water.

  As shown in FIGS. 2 and 3, the faucet device 1 includes two on-off valve units 7 and 8 that open and close the flow path, and a cover 9 that covers these on-off valve units 7 and 8. The on-off valve units 7 and 8 are called pilot-type on-off valve devices, and operation parts 7a and 8a for operating on-off valves (not shown) built in the on-off units 7 and 8 are provided on the respective upper portions. Is provided. As shown in FIG. 3, the cover 9 includes a front cover 9 a located at the front portion of the faucet device 1 and side covers 9 b and 9 c located at the left and right portions thereof.

  Further, in order to perform the opening / closing operation by pressing the operation parts 7a, 8a of the opening / closing valve units 7, 8, the operation keys 2, 3 can be raised and lowered in the two openings 9s, 9t opened in the front cover 9a, respectively. It is pivotally supported. In the present embodiment, pilot type on / off valve devices are used as the on / off valve units 7 and 8. However, the present invention is not limited to this, and other types of on / off valve units having similar functions are used. It is also possible.

  As shown in FIGS. 4 to 6, these operation keys 2 and 3 are pivotally supported by support shafts 2a and 3a, respectively, so that they can be raised and lowered. The operation key 2 is urged in the overturning direction by a spring 2s arranged coaxially with a support shaft 2a projecting near both left and right ends thereof, and the undulation angle of the operation key 2 is within a predetermined range (this embodiment). As a locking means that can be set / released within the range of the opening / closing operation of the operation key 2, a stopper 2b positioned substantially coaxially with the support shaft 2a faces downward on the lower surface of the operation key 2. An elastic locking piece 10 is provided in the opening 9s so that the stopper 2b can be engaged and disengaged.

  The operation key 3 is pivotally supported by a support shaft 3a having a length approximately equal to the left-right width, but is attached to the support shaft 3a via arms 3m provided near both left and right ends of the lower surface of the operation key 3. It is pivotally supported and biased in the fall direction by a spring 3s arranged coaxially with the spindle 3a. Each of these arms 3m is pivotally supported on the support shaft 3a through two arm insertion openings 9m provided in the inner wall portion of the front cover 9a. Then, as a setting / releasable locking means for restricting the undulation angle of the operation key 3 within a certain opening / closing operation range, the peripheral edge of the arm insertion port 9m is provided on the side cover 9c side of one arm 3m. A stopper 3b that can be engaged and disengaged is projected from the portion.

  In normal times, the undulation angles of the operation keys 2 and 3 are restricted within the range of opening and closing operations by the stoppers 2b and 3b, respectively. Therefore, when the operation keys 2 and 3 are pressed, the operation keys 2 and 3 are The open / close valve units 7 and 8 are actuated by lying down and standing within the range of the open / close operation, and the projecting pieces 2c and 3c provided on the lower surfaces of the open / close operations pressing the operation portions 7a and 8a. As described above, since the currant 5 and the shower 6 are alternately switched between the water discharge state and the water stop state by simply pressing the operation keys 2 and 3, the operability is good.

  2 and 4, in the faucet device 1, the exposed surface of the operation keys 2 and 3 and the exposed surface of the front cover 9a located around the operation keys 2 and 3 are substantially the same surface. It is formed to make. For this reason, the cover 9a and the operation keys 2 and 3 have a high sense of unity and a feeling of unevenness is reduced, so that the appearance quality is excellent.

  Next, the on-off valve units 7 and 8 will be described with reference to FIGS. Since the on-off valve units 7 and 8 have the same structure, the on-off valve unit 7 will be described here. 7 is a schematic view showing the basic structure of the on-off valve unit constituting the water faucet device shown in FIG. 1, FIG. 8 is a cross-sectional view showing the on-off valve unit in a water stop state (closed state), and FIG. FIG. 10 is a view showing a pilot valve switching holding mechanism (heart cam mechanism) constituting the on-off valve unit.

  As shown in FIG. 7, the on-off valve unit 7 includes an operation unit 7 a that is pressed downward by the user pressing the operation key 2 for the currant 5, and a push rod having a base end coupled to the operation unit 7 a. 38 and a pilot valve 40 provided at the tip of the push rod 38, and a coil spring 42 as a buffer means is provided between the tip (lower end) of the push rod 38 and the pilot valve 40.

  The on-off valve unit 7 includes a pilot valve port (pressure release hole) 44 below the pilot valve 40, a diaphragm type main valve 46 in which the pilot valve 40 abuts and disengages from the pilot valve port 44, and the main valve 46. A housing 50 is formed on the back surface of the valve 46 for forming a pressure chamber 48 for accommodating the push rod 38, the pilot valve 40 and the coil spring 42, and a valve seat 52 on which the surface of the main valve 46 is seated and separated. I have. A seal member 54 is provided at a portion of the housing 50 where the push bar 38 is inserted. Further, a small hole (primary pressure inlet) 56 is formed on the outer peripheral side of the main valve 46.

  Next, the basic operation of the on-off valve unit 7 will be described. In the on-off valve unit 7, the pilot valve 40 provided in the pressure chamber 48 is brought into contact with and dissociated from the pilot valve port 44 of the main valve 46, thereby opening and closing the pilot valve 40, so that the water stop state and the water discharge state And are to be switched.

  When switching from the water discharge state to the water stop state, the pilot valve 40 must be pushed by the push rod 38 in the direction in which the pilot valve 40 abuts the pilot valve port 44. At this time, the push bar 38 receives an upward force due to the water pressure acting on the area corresponding to the cross-sectional area thereof, and further has a sliding frictional resistance due to the seal member 54. It is necessary to push the operation portion 7a against these. However, this operating force is a relatively small value.

  Next, when the pilot valve 40 comes into contact with the pilot valve port 44 of the main valve 46, the primary pressure water in the primary side water passage flows into the pressure chamber 48 through the small hole 56, and accordingly, the main valve 46. Moves toward the valve seat 52 at a slow speed. As a result, the main valve 46 is seated on the valve seat 52 and switched to the water stop state (see FIG. 8).

  Further, in the on-off valve unit 7, the coil spring 42 as a buffer means is provided between the push rod 38 and the pilot valve 40, that is, in the pressure chamber 48. The force does not act until it abuts on the pilot valve port 44. Further, as will be described in detail later, a small force may be applied after the pilot valve 40 abuts on the pilot valve port 44.

  On the other hand, when switching from the water stop state to the water discharge state, if the operation portion 7a is pushed, the pilot valve 40 is connected to the pilot valve port (pressure release) of the main valve 46 by a pilot valve switching holding mechanism 62 and an urging spring 69 described later. The pressure chamber 48 is opened, the main valve 46 is disengaged from the valve seat 52, and a water discharge state is entered (see FIG. 9).

  In the on-off valve unit 7, as described above, the moving speed of the main valve 46 is intentionally reduced, but this is to suppress the occurrence of water hammer when the main valve 46 is closed. That is, when the primary water flows into the pressure chamber 48 from the small hole 56 provided in the main valve 46, the pressure chamber 48 is filled with the primary pressure water, and the main valve 46 moves toward the valve seat 52. However, since the small hole 56 usually has a very small diameter, the flow rate of water into the pressure chamber 48 can be suppressed, thereby suppressing the moving speed (closing speed) of the main valve 46 and closing the main valve. The generation of water hammer is suppressed.

  Next, the on-off valve unit 7 will be described in detail with reference to FIGS. As described above, FIG. 8 is a cross-sectional view showing the on-off valve unit in the water stop state (closed state), and FIG. 9 is a cross-sectional view showing the on-off valve unit in the water discharge state (open state).

  As described above, the on-off valve unit 7 shown in FIG. 8 is a diaphragm type equipped with an operating portion 7a, a push rod 38, a pilot valve 40, a coil spring 42 as a buffer means, and a pilot valve port (pressure release hole) 44. Main valve 46, housing 50 (50a, 50b) for forming pressure chamber 48, valve seat 52, seal member 54, and small hole 56 are provided.

  A cleaning pin 58 is inserted into the small hole (primary pressure inlet) 56 described above, and the water flow area of the primary pressure inlet of the small hole 56 is reduced. Accordingly, as described above, the closing speed of the main valve 46 is moderated by suppressing the inflow speed of the primary pressure into the pressure chamber 48, and the water hammer generated at the closing time can be reduced.

  The housing 50 forming the pressure chamber 48 includes a first housing 50 a that mainly surrounds a space in which the pilot valve 40 is disposed, and a second housing 50 b that surrounds a space on the back side of the main valve 46. Also, an assembly nut 60 for assembling the on-off valve unit 7 is disposed on the outermost peripheral side by assembling four parts, that is, the operation portion 7a, the first housing 50a, the second housing 50b, and the valve seat 52. Yes.

  Further, the on-off valve unit 7 includes a pilot valve switching holding mechanism 62. The pilot valve switching holding mechanism 62 is linked to the operation key 2 described above, and every time the operation key 2 is pressed, that is, every time the operation portion 7a is pressed by the operation key 2, the water discharge state of the pilot valve 40 The function of repeatedly switching the position and the water stop state position and holding the pilot valve 40 at the water discharge state position or the water stop state position is provided.

  The pilot valve switching / holding mechanism 62 may be a mechanism generally used in a knock type ballpoint pen knock mechanism or the like, but in the present embodiment, as shown in FIGS. 8 and 9, the pilot valve switching / holding mechanism 62 moves in conjunction with the operation unit 7a. The pin 64 that is formed on the outer peripheral surface of the first housing 50a, the cam groove 66 having an inverted heart shape that moves along the elastic deformation of the lower side of the pin 64, and the pin 64 in a water stop state (closed state). A heart cam mechanism formed by a holding projection 68 for holding the lens is employed.

  Here, the pilot valve switching holding mechanism (heart cam mechanism) 62 will be described in detail with reference to FIG. FIG. 10 is an enlarged view showing a pilot valve switching holding mechanism (heart cam mechanism) employed in the on-off valve unit 7.

  As shown in FIG. 10, each time the user presses the operation key 2, the lower end portion 64 a of the pin 64 is moved to a position (water stop state), b position (pressed state), c position (water discharge position), It moves according to the order of the d position (pressed state). In the a position (water-stopped state), the lower end portion 64a of the pin 64 is held by the holding projection 68, and the water-stopped state is thereby maintained. Next, when the water discharge operation is performed from the water stop state to the water discharge state, the lower end portion 64a of the pin 64 moves along the shape of the cam groove 66 and falls to the b position (pressed state), and then the c position (water discharge state). The water discharge state is maintained at this position. Next, when the water stop operation is performed from the water discharge state to the water stop state, the lower end portion 64a of the pin 64 moves along the shape of the cam groove 66 from the c position (water discharge state), drops to the d position (push state), and thereafter , A position (water discharge state), the water stop state is maintained at this position.

  As described above, since the pilot valve switching holding mechanism 62 is a heart cam mechanism, only the reciprocating motion (vertical motion) of the push rod 38 acts on the seal member 54 that seals the pressure chamber 48, as in the above-described knock mechanism. Since the rotational mobility of the push rod 38 does not act, the burden on the seal member 54 is reduced, and high reliability can be obtained.

  Further, as shown in FIGS. 8 and 9, when the operation is switched from the water stop state to the water discharge state by the biasing spring 69, that is, when the operation key 2 is pressed, the water stop by the pilot valve switching holding mechanism 62 is performed. The holding at the state position is released, the operation portion 7a is biased upward, the pilot valve 40 is disengaged from the pilot valve port (pressure release hole) 44, and can be easily switched to the water discharge state.

  Next, the connecting portion between the push rod 38 and the pilot valve 40 will be described. As shown in FIGS. 8 and 9, the movement distance (displacement amount) in the stroke direction of the push rod 38 is absorbed in the pressure chamber 48 at the tip (lower end) of the push rod 38 as described above. A coil spring 42 which is a buffer means is provided. A large diameter portion 38 a is formed at the tip (lower end) of the push rod 38, and a packing 40 a is attached to the tip of the pilot valve 40. The pilot valve 40 has a hollow portion 40b, and a coil spring 42 is built in the hollow portion 40b.

  An insertion hole 40c into which the push rod 38 is slidably inserted is formed above the pilot valve 40. The pilot valve 40 is formed of an elastically deformable resin material. When the pilot valve 40 is assembled, the push rod 38 is inserted into the insertion hole 40c while the pilot valve 40 is deformed, and the large portion of the push rod 38 is inserted into the hollow portion 40b. The diameter portion 38a is accommodated. Here, the coil spring 42 urges the push rod 38 and the pilot valve 40 in a direction to separate them.

  Thereby, at the time of water discharge operation to switch from the water stop state to the water discharge state, the large diameter portion 38a at the tip of the push rod 38 and the upper side of the pilot valve 40 are engaged by the urging force of the coil spring 42. Moves away from the pilot valve port 44 formed in the main valve 46 in conjunction with the movement of the push rod 38 (see FIG. 9).

  On the other hand, at the time of the water stop operation to switch from the water discharge state to the water stop state, the pilot valve 40 contacts the pilot valve port 44 formed in the main valve 46, and the large diameter portion 38 a of the push rod 38 is separated from the upper side of the pilot valve 40. However, the moving distance (displacement amount) of the push rod 38 in the stroke direction is absorbed by the coil spring 42 (see FIG. 8).

  In this way, there is a difference in operating force in both the process until the pilot valve 40 abuts on the pilot valve port 44 during the water stop operation and the process after the pilot valve 40 abuts on the pilot valve port 44 ( Unevenness) is eliminated, and a favorable operational feeling can be obtained.

  Here, the opening mechanism of the operation keys 2 and 3 will be described with reference to FIGS. 11 is a side view showing the faucet device 1, FIG. 12 is a perspective view of the faucet device 1, and FIG. 13 is a partially cutaway side view of the faucet device shown in FIG. As shown in FIGS. 4 to 6 and FIG. 13, the stopper 2b provided on the operation key 2 is detached from the elastic locking piece 10, and the stopper 3b provided on the arm 3m of the operation key 3 is armed. When it is removed from the insertion port 9m, the locking means are released, and as shown in FIG. 12, the operation keys 2 and 3 are raised beyond the range of the respective opening and closing operations, and the openings 9s and 9t are opened. It can be opened widely.

  That is, if the locking means is released, the operation keys 2 and 3 can be largely raised beyond a certain operation angle range at the time of opening and closing, so that fingers can be inserted into the openings 9s and 9t. Therefore, the portion hidden by the operation keys 2 and 3 can be easily cleaned in normal times. In this case, since the operation key 3 is pivotally supported by the support shaft 3a via the arm 3m, it can be opened larger than the operation key 2. In normal times, the portions hidden by the operation keys 2 and 3 are often contaminated with hot water flowing in through the gap, but by raising the operation keys 2 and 3 to be larger than the range of the opening / closing operation. Since such a part can be easily cleaned, it is hygienic.

  Although there is no particular limitation on the standing angle when the operation keys 2 and 3 are largely raised beyond the range of a certain opening / closing operation, in the present embodiment, the standing angles of the operation keys 2 and 3 are respectively set. When it was set to be at least 70 degrees from the closed state, fingers could be smoothly inserted into the openings 9s and 9t, and cleaning could be performed easily.

  Also, a screw that is a fixing means of the cover 9 (front cover 9a) with respect to the on-off valve units 7 and 8 at a position that can be seen from the outside when the operation keys 2 and 3 are raised in the state shown in FIGS. 13 is arranged. The screw 13 fixes the cover 9 (front cover 9 a) to the metal plate 15. These screws 13 are provided at positions covered by the operation keys 2 and 3 when the operation keys 2 and 3 are within the range of the opening / closing operation. With such a configuration, in a normal use state, the screw 13 which is a fixing means of the cover 9 with respect to the on-off valve units 7 and 8 is not visible from the outside, and exhibits excellent appearance quality.

  As shown in FIG. 11, a plurality of protective projections 12 projecting from the exposed surfaces of the operation keys 2, 3 are provided on the exposed surface of the front cover 9 a located around the operation keys 2, 3. Therefore, even if the head of the shower 6 (see FIG. 1) is accidentally dropped or an article such as a shampoo bottle is dropped in the event of an earthquake or the like, these protective projections 12 cause the article to be operated. Since it can avoid contacting 2 and 3, the water discharge by malfunction can be prevented.

  As shown in FIG. 14, in the faucet device 1, an opening 14 that can be opened and closed by an opening / closing lid 9d is formed in a part of a front cover 9a located below the opening / closing valve units 7 and 8 (see FIG. 13). Is provided. A plurality of locking claws 9e are provided on the lower edge portion of the opening / closing lid 9d. When the opening / closing lid 9d is inserted horizontally into the opening 14 of the front cover 9a, the locking claws 9e are bent. It is attached by engaging with a projection (not shown) of the front cover 9e. Conversely, when the opening / closing lid 9d is pulled horizontally, the locking claw 9e is bent and detached from the projection (not shown) of the front cover 9a. Thus, the opening / closing lid 9d can be removed.

  Thus, since the opening / closing lid 9d can be attached to and detached from the opening 14, if the opening / closing lid 9d is removed from the front cover 9a as necessary, a water stopcock or the like inside the cover 9 can be visually confirmed, It is possible to insert a tool or a tool into the cover 9, and the cleaning workability and maintenance performance for the on-off valve units 7 and 8 are good.

It is a perspective view which shows the state which installed the faucet apparatus which is embodiment of this invention in the bathroom. It is a perspective view of the water faucet device shown in FIG. It is a disassembled perspective view of the water faucet device shown in FIG. It is a partially cutaway side view of the water faucet device shown in FIG. It is the sectional view on the AA line in FIG. It is the BB sectional view taken on the line in FIG. It is the schematic which shows the basic structure of the on-off valve unit which comprises the water faucet apparatus shown in FIG. It is sectional drawing which shows the on-off valve unit in a water stop state (closed state). It is sectional drawing which shows the on-off valve unit in a water discharging state (open state). It is a figure which shows the pilot valve switching holding | maintenance mechanism (heart cam mechanism) which comprises an on-off valve unit. It is a side view of the water faucet device shown in FIG. It is a perspective view of the water faucet device shown in FIG. It is a partially cutaway side view of the water faucet device shown in FIG. It is a perspective view of the water faucet device shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water faucet device 2, 3 Operation key 2a, 3a Support shaft 2b, 3b Stopper 2c, 3c Projection piece 2s, 3s Spring 3m Arm 4 Temperature adjustment dial 5 Curran 6 Shower 7, 8 On-off valve unit 7a, 8a Operation part 9 Cover 9a Front cover 9b, 9c Side cover 9d Open / close lid 9e Locking claw 9m Arm insertion port 9s, 9t, 14 Opening portion 10 Elastic locking piece 12 Protective protrusion 13 Screw 38 Push rod 38a Large diameter portion 40 Pilot valve 40a Packing 40b Hollow portion 40c Insertion hole 42 Coil spring 44 Pilot valve port (pressure release hole)
46 Main valve 48 Pressure chamber 50 Housing 50a First housing 50b Second housing 52 Valve seat 54 Seal member 56 Small hole (primary pressure inlet)
58, 64 pins 60 assembly nut 62 pilot valve switching holding mechanism 64a lower end 66 cam groove 68 holding projection 69 biasing spring

Claims (4)

  A faucet device having a function of alternately switching between a water discharge state and a water stop state by pressing an operation key, an on-off valve unit that opens and closes a flow path, and a cover that covers at least a part of the on-off valve unit; An operation key that is pivotally supported by an opening formed in the cover to open and close the on-off valve unit, and a setting / releasable restriction that restricts the undulation angle of the operation key within a predetermined range And the operation key can stand up beyond the predetermined range when the restricting means is released.   The faucet device according to claim 1, wherein a means for fixing the cover to the on-off valve unit is provided at a position covered by the operation key.   The faucet device according to claim 1 or 2, wherein a protective projection protruding from an exposed surface of the operation key is provided on an exposed surface of the cover located around the operation key.   The faucet device according to any one of claims 1 to 3, wherein an opening that can be opened and closed is provided in a part of the cover located below the on-off valve unit.

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