JP2009144439A - Single lever faucet - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a single lever faucet which effectively prevents water from suddenly being discharged unintentionally by contact of a human body or the like with the lever part of a handle or effectively prevents water from being discharged by children's mischief. <P>SOLUTION: The single lever faucet 35 is provided with a lock mechanism 98 for locking the handle 82 to be in a water stop state and a lock device 96 having a lock operation part 100 for allowing the lock mechanism 98 to be switched between in a lock state and in a release state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a single lever faucet, and more particularly, to a single lever faucet suitable for application to an outdoor arrangement such as a faucet column.

  Conventionally, a mixing valve that adjusts the temperature of water discharge and water discharge by sliding movement of a movable valve body with respect to a fixed valve body, a handle base connected to the movable valve body via a connecting arm, and a lever protruding from the handle base There is widely used a single lever faucet having a handle provided with a portion and sliding a movable valve body through a handle base and a connecting arm by rotating the lever portion.

On the other hand, a faucet column with a faucet on a column that stands up upwards for the purpose of washing pets or washing equipment and other items after garden work outside the garden or garage. It is done to install.
Conventionally, it has been proposed to provide a single lever faucet as a faucet of such a faucet column. For example, Patent Literature 1 below discloses a single lever faucet provided as a faucet in a faucet column.

By the way, the single lever faucet provided in this faucet column is installed behind the front end of a water faucet such as a kitchen faucet or a bathroom vanity installed indoors, that is, a sink or a basin. Compared to a single lever faucet that is being used, the unexpected action of a person may cause the user's body to hit the lever part of the handle, unintentionally opening the handle and discharging water. It is easy to occur, or when working around the faucet column, the equipment or the like hits the lever part and the water is unintentionally discharged.
Furthermore, the handle may be opened by a mischief of a small child, which is a win.

In this case, since such a faucet column is installed outdoors, there is a possibility that a person who is indoors will not be aware that water is being discharged from the faucet column and the water will be discharged as it is.
Of course, such a problem may occur not only in the faucet column but also in other faucets installed outdoors or in faucets installed indoors.

Conventionally, what locks the handle for operating the spouting water in the water-stopping state is disclosed in Patent Literature 2 and Patent Literature 3 below.
However, those disclosed in Patent Documents 2 and 3 are different from the present invention in that they are not single lever faucets.

On the other hand, Patent Document 4 below discloses a single lever faucet provided with a lock mechanism.
However, the one disclosed in Patent Document 4 does not lock the handle in a water-stopped state, and is different from the present invention in this respect.

JP 2005-120717 A Japanese Patent Laid-Open No. 11-248029 JP 2002-167818 A Japanese Utility Model Publication No. 5-17286

  The present invention is based on the circumstances as described above. Unintentional water discharge is unintentionally caused by a person's body hitting the lever portion of the handle, or the handle is opened by a child's mischief, causing water discharge. The object of the present invention is to provide a single lever faucet that can be effectively prevented from being performed.

  Thus, according to the first aspect of the present invention, (a) a mixing valve for adjusting the temperature of water discharge and water discharge by sliding movement of the movable valve body with respect to the fixed valve body, and (b) the movable valve via the connecting arm. And a handle having a handle base connected to the valve body and a lever protruding from the handle base, and the movable valve via the handle base and the connecting arm by rotating the lever. In a single lever faucet adapted to slide the body, a lock mechanism including a lock mechanism for locking the handle in a water-stopped state and a lock operation unit for switching the lock mechanism between a locked state and a released state Is provided.

  According to a second aspect of the present invention, in the first aspect, the lock operation portion is provided separately from the lever portion of the handle.

  According to a third aspect of the present invention, in any one of the first and second aspects, the lock mechanism is built in the handle base.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the lock operating portion is formed as a rotary knob, and has a protrusion that protrudes in a direction perpendicular to the rotation axis, and the protrusion is , And an instruction unit for indicating whether the lock mechanism is in the locked state or the released state.

  According to a fifth aspect of the present invention, in the fourth aspect, the lock operation portion is provided on a peripheral wall of the handle base portion, and the lock mechanism is provided on the upper surface of the handle base portion in cooperation with the instruction portion. A display portion for displaying whether the state is in the released state or the released state is provided.

  According to a sixth aspect of the present invention, the lock mechanism according to any one of the first to fifth aspects, wherein the lock mechanism is rotatably fitted in a fitting hole formed in a peripheral wall of the handle base portion, and the rotary shaft portion And a stopper portion protruding in a direction perpendicular to the axis of the handle, and the handle base is locked in a water-stopped state by bringing the stopper portion into contact with the abutting portion of the faucet body. The stopper is unlocked by rotating the stopper portion integrally with the rotating shaft portion from a contact position to the contact portion to a retracted position which is a non-contact position.

  According to a seventh aspect of the present invention, in the sixth aspect, the stopper surface at the tip of the stopper portion is a flat cut-off stopper surface.

  According to an eighth aspect of the present invention, in the sixth aspect of the present invention, in the rotary shaft portion, an axial through hole oriented toward a connection portion between the handle base portion and the connecting arm is provided in the center portion, The holes are formed as tool insertion spaces when connecting and releasing the handle base and the connecting arm.

  According to a ninth aspect of the present invention, in any one of the first to eighth aspects, the faucet column is provided outdoors.

Effects and effects of the invention

  As described above, according to the first aspect of the present invention, in the single lever faucet, the lock mechanism includes a lock mechanism that locks the handle in the water stop state and a lock operation unit that switches the lock mechanism between the lock state and the release state. According to the first aspect of the present invention, due to the locking by the lock mechanism, the body hits the lever part of the handle by an unexpected operation of the person, or the water is unintentionally discharged, or the child It is possible to effectively prevent the handle from being opened due to mischief and causing water discharge.

  In this case, the lock operation portion can be provided separately from the lever portion of the handle (claim 2).

The lock mechanism can be built in the handle base (claim 3).
In this way, the dead space generated inside the handle base can be effectively utilized as a space for providing the lock mechanism, and this makes it possible to increase the size of the faucet by providing the lock mechanism. The effect which can prevent and can comprise a faucet compactly is acquired.

  According to a fourth aspect of the present invention, the lock operation portion is formed as a rotary knob, and a protrusion protruding in a direction perpendicular to the rotation axis is provided in the rotary knob. With the protrusion, the lock mechanism is in a locked state or a released state. According to the fourth aspect of the present invention, since the current operating state of the lock mechanism can be indicated by the instruction unit, the user is currently locked. It can be recognized at a glance whether it is released or not, and the faucet can be used comfortably without stress.

In this case, the lock operation portion is provided on the peripheral wall of the handle base portion, and the lock operation portion is locked on the upper surface of the handle base portion different from the peripheral surface as the assembly surface of the lock operation portion in cooperation with the indication portion made of the protrusion. , A display unit for displaying the release state can be provided.
In this case, since the display part is provided on the upper surface of the handle base part that is most easily seen from the user, it is possible to obtain an advantage that the user can easily understand whether or not the faucet is locked.

  When such a display is provided, it is usually provided on the peripheral surface of the handle base, which is the mounting surface of the lock operation unit. In such a case, the lock operation unit is not easily seen by the rear of the handle base. If it is placed on the side, it is possible to prevent the lock operation unit from being unlocked due to mischief, but for the user of the faucet, it is possible to know what operation state the lock operation unit is currently in. It will be difficult.

  However, when the display unit is provided on the upper surface of the handle base according to claim 5, even if the lock operation unit is arranged on the rear side of the handle base, the operation state of the lock operation unit is changed. Thus, there is an advantage that the user can immediately recognize whether or not the handle lock is applied.

In this case, the protrusion of the lock operation portion that constitutes the instruction portion can have a length that protrudes upward from the upper surface of the handle base portion.
By doing so, the position of the pointing portion made of the protrusion can be easily understood, and the user can immediately recognize the operation state of the lock operation portion, that is, the operation state of the lock mechanism.

The locking mechanism includes a rotating shaft portion rotatably fitted in a fitting hole in a peripheral wall of the handle base portion, and a stopper portion protruding in a direction perpendicular to the axis from the rotating shaft portion. While the handle base is locked in a water-stopped state by contacting the contact portion, the stopper portion is rotated integrally with the rotary shaft portion from the contact position to the contact portion to the retracted position which is a non-contact position. And can be unlocked (claim 6).
In this way, the lock mechanism can be configured with a simple structure.

  In this case, the stopper surface at the tip of the stopper portion can be a flat cut-off stopper surface (claim 7).

  In this way, the stopper surface is brought into contact with the abutting portion of the faucet body, and the handle base is locked in the water stop state, and the handle base is in the left-right direction, which is the direction of adjusting the temperature of the discharged water. It is effective to cause the stopper part to rotate in the direction of the retracted position on the basis of the contact between the stopper surface and the abutting part, and the lock is unintentionally released. It can be avoided.

  Next, an eighth aspect of the present invention provides an axial through hole oriented at the center of the rotating shaft toward the connecting portion between the handle base and the connecting arm at the center, and the through hole is provided at the handle base and the connecting arm. In this way, a tool insertion space for attaching and detaching the handle base and the connecting arm can be formed using a lock mechanism. The shape and structure of the handle portion can be simplified as compared with the case where such an insertion space is provided separately.

  The present invention is particularly applicable to a single lever faucet provided in a faucet column installed outdoors (claim 9).

Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIGS. 1 and 2, reference numeral 10 denotes a faucet column installed outdoors, and reference numeral 12 denotes a washing place having a drain port 14, and a pillar body 16 having a circular cross section stands from the back of the washing place 12.
A single faucet 18 for discharging water is provided on the side surface of the column body 16 (the right side surface as viewed from the user on the washing place 12 side).
The single faucet 18 has a faucet body 20 protruding rightward from the right side surface of the column body 16, and a rotary handle 22 on the right side of the faucet body 20 in the figure. On the front side, a water discharge pipe 26 having a water discharge port 24 is provided so as to protrude forward. Here, the tip of the water discharge pipe 26 is inclined forward and downward.
The single water faucet 18 is provided at a substantially middle height position of the column body 16.

On the other hand, a hanger 30 is provided on the right side of the upper side of the column 16 and the same side as the single faucet 18. Here, the hanger 30 is a portion that holds a pet chain, a brush, or other small items.
A shower hook 32 protrudes to the left side on the side of the column 16 substantially the same height as the hanger 30 and on the side opposite to the hanger 30, that is, on the left side as viewed from the user on the washing room 12 side. ing.
A shower head 36 having a shower spout 34 is hooked and held on the shower hook 32.
The column body 16 is also provided with a single lever faucet 35 at its upper end.

FIG. 2 specifically shows the internal structure of the column 16 and the single lever faucet 35.
As shown in FIG. 2, the column body 16 is hollow inside, and supply pipes 38 and 40 as water pipes and a supply pipe 42 as hot water pipes are accommodated in the hollow interior.
Here, the supply pipes 38, 40, and 42 are each constituted by a flexible pipe (flexible pipe). Specifically, it is composed of a flexible tube in which the outer peripheral surface of an elastic tube such as rubber is covered with a flexible metal material.

A connection member 48 is provided in a portion embedded in the soil below the column 16, and an external water pipe and a hot water pipe (not shown) are respectively connected to the connection ports 44 and 46 of the connection member 48. It is supposed to be connected.
The lower end of the supply pipe 38 is connected so as to communicate with the connection port 44 of the connection member 48, and the lower end of the supply pipe 42 on the hot water side so as to communicate with the hot water connection port 46. Is connected to the connecting member 48.

A branch member 50 that branches the flow path is connected between the water-side supply pipes 38 and 40, and the water-side flow path is branched into flow paths 52 and 54 by the branch member 50. Yes.
The water supplied through the supply pipe 38 flows into the faucet body 20 in the single faucet 18 through this flow path 54, then flows into the water discharge pipe 26 side, and is discharged from the water outlet 24 at the tip.
Reference numeral 56 denotes a flow rate adjusting plug for adjusting the flow rate of water flowing through the flow path 52.

  The single unit for mixing the water and hot water sent upward through the supply pipes 38, 40 and 42 at a predetermined ratio into the upper end portion of the column body 16 to obtain an appropriate temperature mixed water (temperature-controlled water). A mixing valve 58 in the lever faucet 35 is provided.

The mixing valve 58 includes a fixed valve body 64 made of a ceramic disk, and a movable valve body 66 that slides relative to the fixed valve body 64.
The fixed valve body 64 is provided with an inlet 68 for water and hot water, to which upper ends of the supply pipes 40 and 42 are respectively connected.

The fixed valve body 64 is also provided with an outlet 72, and an upper end portion of the outlet pipe 74 is connected to the outlet 72.
The mixing valve 58 causes water and hot water flowing in from the hot water inlet 68 to flow into the mixing chamber 70 of the movable valve body 66 and mix there, and the mixed water flows out from the outlet 72 to the outlet pipe 74. Let

The mixed water that has flowed out to the outflow pipe 74 flows into a flow path 75 formed inside the shower hook 32 shown in FIG. 2A, and then is guided to the shower head 36 through a shower hose 78.
The mixing valve 58 adjusts the mixing ratio of water and hot water by moving the position of the movable valve body 66, or closes one or both of the water and hot water inlets.
Thus, water discharge from the shower head 36 is stopped in a state where both the inlets are closed. That is, the water is stopped.
In addition, the inside of the column 16 is filled with a heat insulating material 80 in the space portion.

1 and 2, reference numeral 82 denotes a handle in the single lever faucet 35. This handle 82 has a handle base portion 84 having a circular shape and a reverse cup shape, and a front side from the handle base portion 84 toward the washing place 12 side. And a protruding lever portion 86.
The handle base 84 is operatively connected to the movable valve body 66 in the mixing valve 58 via a connecting arm 88 as shown in FIG.

In the single lever faucet 35, the lever portion 86 is turned upward to start water discharge from the shower head 36, and the amount of water discharge is increased by increasing the amount of rotation.
On the contrary, by turning the lever portion 86 downward, the flow rate of the discharged water is decreased and finally the water is stopped.
On the other hand, by turning the lever portion 86 to the left and right, the mixing ratio of hot water and water is changed, and the temperature of the mixed water, that is, the discharged water is adjusted.

As shown in FIG. 9 (and FIG. 3), the handle base 84 of the handle 82 is integrally provided with a boss 90 projecting downward in the figure.
The boss portion 90 is provided with a fitting hole 92 into which an upper portion of a connecting arm 88 having a quadrangular cross section is fitted upward.

  As shown in detail in FIG. 6, the fitting hole 92 has a shape corresponding to the cross-sectional shape of the upper portion of the connecting arm 88, and is applied by fitting the upper portion of the connecting arm 88 into the fitting hole 92. The connecting arm 88 rotates integrally with the handle 82 in the vertical and horizontal directions.

  A fixing screw 94 is screwed into the boss 90 from the rear side (from the right side in the figure), and the connecting arm 88 and the handle base 84 are detachably connected by the fixing screw 94.

The handle base 84 is provided with a lock device 96 for locking the handle 82 in the water stop state shown in FIG. 9 at a position directly behind the lever portion 86.
The lock device 96 includes a lock mechanism 98 assembled to the handle base 84 so as to be built in a space inside the handle base 84, and a lock operation unit provided in a state exposed to the outside of the handle base 84. 100.

The lock mechanism 98 includes a rotatable lock member 99, and the lock member 99 is provided with a rotary shaft portion 102 having a circular cross section.
The rotating shaft portion 102 is rotatably fitted in a circular fitting hole 104 formed in the handle base portion 84.
A stopper portion 106 that projects in a direction perpendicular to the rotation axis is integrally provided at the inner end portion (left end portion in the figure) of the rotation shaft portion 102.

  In this locking device 96, the stopper surface 108 at the tip of the stopper portion 106 is brought into contact with the abutting portion of the faucet body 110, here the flat upper surface of the fixing nut 112 that fixes the valve cartridge to the housing of the faucet body 110. As a result, the handle 82 is locked in a water-stopped state, and the stopper portion 106 is rotated by 90 ° as shown in FIGS. 3 and 5A from the position of contact with the faucet body 110 shown in FIG. The lock is released by rotating to the retracted position, and the handle 82 can be rotated in the right direction (clockwise direction), that is, the water discharge direction in the figure.

  In this embodiment, as shown in FIG. 9, the state in which the stopper portion 106 is in contact with the contact portion of the faucet body 110 is the locked state in the lock mechanism 98, and the stopper portion 106 is shown in FIG. As shown in FIG. 3 and FIG. 5A from the position, the state where it is rotated by 90 ° and reaches the retracted position is the unlocked state.

Here, the stopper surface 108 at the tip of the stopper portion 106 is a flat cut surface.
Specifically, in the locked state shown in FIG. 9, the stopper surface 108 is a flat surface that is parallel to the contact portion of the faucet body 110, that is, the flat upper surface of the fixing nut 112.

  The stopper portion 106 in the lock mechanism 98 is disposed so as to contact the upper surface of the fixing nut 112 at a position separated from the connecting arm 88 to the right (rear side) in the drawing. The position of the stopper portion 106 is a position deviated from the rotation axis when the handle 82 is rotated in the left-right direction.

As shown in FIG. 6, a leaf spring 120 constituting one element of the click mechanism 126 (see FIGS. 9 and 3) is assembled to the inner surface of the upper wall portion of the handle base 84.
Correspondingly, click grooves 122-1 and 122-2 for elastically inserting the leaf springs 120 are provided on the rotating shaft portion 102 side in the circumferential direction as shown in FIG. Yes.
A portion between the click grooves 122-1 and 122-2 is a wall 124.

As shown in FIGS. 3, 5, and 9, the rotary shaft portion 102 is provided with an axial through hole 114 at the center thereof.
Here, the through-hole 114 is oriented toward a connection portion between the handle base portion 84 and the connecting arm 88, specifically, a fixing screw 94 for connecting and fixing them, and the handle base portion 84 and the connecting arm 88 by the fixing screw 94 are oriented. The tool can be inserted into the through hole 114 during the detaching operation. That is, the through-hole 114 forms a tool insertion hole for attaching and detaching the handle base 84 and the connecting arm 88.

The lock operation unit 100 is also provided with an axial through hole 116 that is continuous with the through hole 114. The through hole 116 of the lock operation unit 100 also forms a tool insertion hole.
These through holes 114 and 116 are closed by a decorative cap 118.

The click mechanism 126 operates as follows.
FIG. 9 shows a state where the stopper surface 108 of the stopper portion 106 is in contact with the upper surface of the fixing nut 112 that is the abutting portion on the faucet body 110 side, and the handle 82 is locked in the water stop state. .
In this state, when the stopper 106 is rotated 90 ° to the retracted position, the leaf spring 120 then elastically urges from the click groove 122-1 over the wall 124 to the click groove 122-2 as shown in FIG. Fits well and generates a click feeling there.

The click feeling is transmitted to the user through the lock member 99 and the lock operation unit 100, and accordingly, the user feels that the stopper portion 106 of the lock mechanism 98 has been rotated 90 ° to the retracted position by touch or at that time. You can know by clicking sound.
Further, the leaf mechanism 120 is fitted into the click groove 122-2 in detail by the click mechanism 126, whereby further rotation of the stopper portion 106 is suppressed there, and the stopper portion 106 is held in its retracted position.
The leaf spring 120 and the click grooves 122-1 and 122-2 have an arc shape in the circumferential direction (rotation direction).

On the other hand, when the stopper portion 106 is rotated again from the retracted position to a position where it comes into contact with the upper surface of the fixing nut 112 shown in FIG. It fits elastically and vigorously and generates a click feeling there.
The click feeling allows the user to know that the lock mechanism 98 has been locked.
At this time as well, the stopper 106 is held at the contact position with the fixing nut 112 shown in FIG. 9 by fitting the leaf spring 120 into the click groove 122-1.

Further, at this time, as shown in FIG. 10, the rotation restricting projection 128 provided on the lock member 99 side comes into contact with the ridge 130-1 provided on the lower surface of the upper wall portion of the handle base 84, thereby Further rotation of the stopper portion 106 is restricted.
The other protrusion 130-2 shown in FIG. 10 further contacts the stopper 106 in the rotational direction when the stopper 106 rotates 90 ° from the contact position shown in FIG. 9 to the retracted position. The rotation of the stopper portion 106 is restricted.

As shown in detail in FIG. 5C, the locking member 99 in the locking mechanism 98 is formed with an inclined flank 140.
When the handle 82 is turned in the direction of water discharge as shown in FIG. 8 with the stopper portion 106 positioned at the retracted position, the flank 140 contacts and interferes with the fixing nut 112. It is formed to avoid this.

As shown in detail in FIG. 7, in this embodiment, an annular upright portion 134 that rises upward from the flat upper surface of the fixing nut 112 is provided around the opening 132 at the center of the fixing nut 112. .
Further, the opening 132 is covered with a cover 136 made of an elastic material.

Since the standing portion 134 and the cover 136 may generate wear powder due to sliding contact between the stopper portion 106 and the upper surface of the fixing nut 112 in the lock mechanism 98, the wear powder passes through the opening 132. It functions to prevent entry into the plug body 110.
Here, the cover 136 is provided with a rectangular fitting hole 138 corresponding to the square shape of the connecting arm 88, and the cover 136 is fitted into the connecting arm 88 in the fitting hole 138.

The lock operation unit 100 exposed to the outside of the handle base 84 is a rotary knob as shown in detail in FIG.
The lock operation unit 100 has a circular base 142 and a projection 144 protruding upward therefrom.

  The base portion 142 is provided with a rectangular fitting hole 146, and a corresponding fitting portion 148 having a rectangular cross section provided on the right end portion of the rotation shaft portion 102 in the lock member 99 in the figure is a shaft. The lock member 99 and the lock operation unit 100 are rotated integrally with each other. That is, by rotating the lock operation unit 100, the lock member 99 rotates together.

Here, the lock member 99 and the base 142 of the lock operation unit 100 are provided with notches 150-1 and 150-2 having semicircular cross sections as shown in the partial enlarged view of FIG. When the driving pin 152 is driven across the locking member 99, the locking member 99 and the locking operation unit 100 are assembled in the axially secured state.
In FIG. 5C, reference numeral 154 denotes a driving hole, and the driving pin 152 is driven through the driving hole 154.

  The projection 144 projecting from the circular base 142 in the lock operation unit 100 serves as a finger hook when operating the lock operation unit 100, and also indicates whether the lock mechanism 98 is in the locked state or the released state, that is, the handle 82. It also has a function as an instructing unit that indicates whether is in a locked state or a released state to the water stop position.

Correspondingly, a display unit 156 is provided on the upper surface of the handle base 84 to indicate whether the lock mechanism 98 is in the locked state or in the released state, as shown in FIG.
As shown in the partially enlarged view of FIG. 1, the protrusion 144 serving as the instruction portion has a protruding length determined so as to protrude above the upper surface of the handle base portion 84.
As a result, the position of the projection 144 can be easily seen when the handle 82 is viewed from the front, even though the lock operation unit 100 is hidden behind the handle base 84. Whether the position is at the lock display position or the release display position on the display unit 156 can be seen immediately.

Next, the operation of the single lever faucet of this embodiment will be described.
FIG. 3 shows a state in which the lock mechanism 98 is unlocked. In this state, it is possible to operate the handle 82 upward with the lever portion 86 in hand, that is, to perform a water discharge operation.
At this time, the protrusion 144 of the lock operation unit 100 is positioned at the release display position of the display unit 156 as shown in the partial enlarged view of FIG.

From this state, when the lock operation unit 100 is rotated to bring the stopper 106 in the lock member 99 to the position shown in FIG. 9, the stopper 106 is placed on the upper surface of the fixing nut 112 on the faucet body 110 side. It will be in the state which opposes, ie, the position located in the position which contact | abuts.
At this time, the projection 144 serving as an instruction unit is positioned in the lock display of the display unit 156 in FIG. That is, the projection 144 is in a state indicating the lock display.

In the state shown in FIG. 9, a minute gap is generated between the stopper surface 108 of the stopper portion 106 and the upper surface of the fixing nut 112.
This gap has the following meaning.
That is, in this embodiment, since the stopper surface 108 is cut off to form a flat surface, when the stopper portion 106 is rotated to the unlocking position (retracted position), the corner portion 158 shown in FIG. The gap is secured so that the nut can rotate without hitting the upper surface of the fixing nut 112.

Now, in this state, when the handle portion 82 is turned upward while holding the lever portion 86 in the hand, as shown in FIG. 11, when the lever portion 86 is turned slightly upward, that is, the handle 82 is moved. Is slightly rotated in the direction of water discharge, the above gap disappears, and the stopper surface 108 of the stopper portion 106 comes into contact with the upper surface of the fixing nut 112 on the faucet body 110 side. Further rotation to is prevented.
In the state shown in FIG. 11, it is possible to rotate the entire handle 82 left and right in the direction of adjusting the temperature of the discharged water by the lever portion 86.

  At this time, if the stopper surface 108 at the tip of the stopper portion 106 is an arc-shaped surface as shown in FIG. Then, the lock member 99 rotates due to friction with the upper surface of the fixing nut 112, and in some cases, the lock may be unintentionally released.

  However, in this embodiment, the stopper surface 108 at the tip of the stopper portion 106 is cut off to form a flat surface, and the stopper surface 108 is in contact with the upper surface of the fixing nut 112 over a wide contact area. Since the rotation of the lock member 99 is prevented by the corner portion 158 of the surface 108 in the left-right direction in FIG. 12, even if the handle 82 is rotated in the left-right direction (the direction perpendicular to the paper surface in FIG. 11), the stopper portion 106 does not rotate, and it is possible to prevent the stopper portion 106 from being accidentally rotated to the unlock position.

  As described above, according to the present embodiment, due to the locking by the locking mechanism 98, the body hits the lever portion 86 of the handle 82 due to a person's unexpected operation, or unintentional water discharge is performed, or the child It is possible to effectively prevent the handle 82 from being opened due to mischief and causing water discharge.

  Further, since the lock mechanism 98 is built in the handle base portion 84, the dead space generated inside the handle base portion 84 can be effectively used as a space for providing the lock mechanism 98, and thus the lock mechanism 98 is provided. Therefore, the single lever faucet 35 can be prevented from becoming large, and the single lever faucet 35 can be configured compactly.

  Further, in this embodiment, the lock operation unit 100 is formed as a rotary knob, and is provided with a protrusion 144 protruding in a direction perpendicular to the rotation axis, and the protrusion 144 has the lock mechanism 98 in a locked state or a released state. Therefore, the current operating state of the lock mechanism 98 can be indicated by the indicating unit, and whether the lock is currently applied or not is used. At first glance, it can be recognized immediately, and the faucet can be used comfortably without stress.

  Further, while the lock operation unit 100 is provided on the peripheral wall of the handle base 84 at a position directly behind the lever unit 86, the lock operation unit 100 is provided on the upper surface of the handle base 84 different from the peripheral surface as the assembly surface of the lock operation unit 100. Since the display unit 156 is provided, the display unit 156 is easy to see from the user, and the user can immediately know whether or not the faucet is locked.

  When such a display is provided, it is usually provided on the peripheral surface of the handle base 84, which is usually the mounting surface of the lock operation unit 100. In such a case, the handle that is difficult to see the lock operation unit 100 is obtained. If the lock operation unit 100 is disposed on the rear side of the base 84, the lock operation unit 100 can be prevented from being unlocked by mischief, while the lock operation unit 100 is currently operated for the user of the faucet. It becomes difficult to understand whether it is.

  However, in this embodiment, since the display unit 156 is provided on the upper surface of the handle base 84 different from the mounting surface of the lock operation unit 100, the lock operation unit 100 is disposed on the rear side of the handle base 84. In addition, the user can easily recognize what operation state the lock operation unit 100 is in.

  Further, since the projection 144 constituting the instruction portion has a length protruding upward from the upper surface of the handle base portion 84, the position indicated by the projection 144 is easily understood.

  Further, in this embodiment, the stopper surface 108 at the tip of the stopper portion 106 is a flat cut-off stopper surface, so that the stopper surface 108 is brought into contact with the upper surface of the fixing nut 112 and the handle base portion 84 is When the handle base 84 is rotated in the left-right direction, which is the direction of water discharge temperature adjustment, in the locked state, the stopper portion is based on the contact between the stopper surface 108 and the upper surface of the fixing nut 112. It can be effectively avoided that 106 rotates in the direction of the retracted position and the lock is unintentionally released.

  In the present embodiment, an axial through hole 114 oriented toward the connecting portion between the handle base 84 and the connecting arm 88 is provided in the center of the rotating shaft 102, and the through hole 114 is provided at the handle. Since the insertion space for the tool when connecting and releasing the connection between the base portion 84 and the connecting arm 88 is provided, the shape and structure of the handle 82 portion are simplified as compared with the case where such an insertion space is provided separately. be able to.

  Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention is effective when applied to the above-described faucet column, but can be applied to other single lever faucets. For example, the present invention can be configured in various forms without departing from the spirit of the present invention.

It is the whole faucet pillar provided with the single lever faucet which is one embodiment of the present invention. It is principal part sectional drawing which showed the internal structure of the faucet column. It is principal part sectional drawing which showed the structure of the handle | steering-wheel part of the single lever faucet with which the faucet pillar was equipped. It is principal part sectional drawing which showed the principal part of FIG. 3 from the different direction. It is the figure which showed the components which comprise the locking device in the embodiment in the assembled state and the disassembled state. It is the figure which showed the inner surface of the upper wall part of the handle base in the same embodiment with the leaf | plate spring. It is the figure which showed the structure of the upper surface of the fixing nut in the embodiment. It is principal part sectional drawing which showed one action state of the embodiment. It is principal part sectional drawing which showed one action state different from FIG. 8 of the embodiment. It is principal part sectional drawing which showed the principal part of FIG. 9 from the different direction. It is action | operation explanatory drawing of the locking mechanism in the embodiment. It is the schematic diagram shown in order to demonstrate the advantage of the locking mechanism of the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Water faucet column 35 Single lever faucet 58 Mixing valve 64 Fixed valve body 66 Movable valve body 82 Handle 84 Handle base part 86 Lever part 88 Connection arm 96 Locking device 98 Lock mechanism 99 Lock member 100 Lock operation part 102 Rotating shaft part 104 fitting Joint hole 106 Stopper portion 108 Stopper surface 110 Water faucet body 112 Fixing nut 114 Through hole 144 Protrusion 156 Display portion

Claims (9)

(A) A mixing valve that adjusts the temperature of water discharge and water discharge by sliding movement of the movable valve body with respect to the fixed valve body, (b) a handle base portion connected to the movable valve body via a connection arm, and the And a handle provided with a lever portion protruding from the handle base portion, and the movable valve body is caused to slide through the handle base portion and the connecting arm by rotating the lever portion. In the single lever faucet, there is provided a lock mechanism provided with a lock mechanism for locking the handle in a water stop state and a lock operation part for switching the lock mechanism between a lock state and a release state. Water faucet.   2. The single lever faucet according to claim 1, wherein the lock operation portion is provided separately from the lever portion of the handle.   3. The single lever faucet according to claim 1, wherein the lock mechanism is built in the handle base.   The lock operation portion according to any one of claims 1 to 3, wherein the lock operation portion is formed as a rotary knob, and has a protrusion protruding in a direction perpendicular to a rotation axis, and the lock mechanism includes the lock mechanism. A single lever faucet characterized by comprising an indicator for indicating whether the state is in the released state or the released state.   5. The lock operation portion according to claim 4, wherein the lock operation portion is provided on a peripheral wall of the handle base portion, and the lock mechanism is in the locked state or the release state on the upper surface of the handle base portion in cooperation with the instruction portion. A single lever faucet characterized by having a display portion for displaying whether or not it is present.   The lock mechanism according to any one of claims 1 to 5, wherein the lock mechanism protrudes in a direction perpendicular to the axis from the rotation shaft portion rotatably fitted in a fitting hole formed in a peripheral wall of the handle base portion. A stopper portion, and locks the handle base in a water-stopping state by bringing the stopper portion into contact with the abutting portion of the faucet body, while operating the locking operation portion to A single lever faucet that is unlocked by rotating from a contact position to the contact portion to a retracted position that is a non-contact position integrally with the rotating shaft portion.   The single lever faucet according to claim 6, wherein the stopper surface at the tip of the stopper portion is a flat cut-off stopper surface.   7. The rotary shaft portion according to claim 6, wherein an axial through hole oriented toward a connection portion between the handle base portion and the connecting arm is provided in the center portion, and the through hole is formed between the handle base portion and the handle base portion. A single lever faucet characterized in that it is a space for inserting a tool when connecting to and disconnecting from a connecting arm.   9. The single lever faucet according to claim 1, wherein the single lever faucet is provided in a faucet column installed outdoors.

Images