JP5253344B2 - Faucet operating device - Google Patents

Description

  The present invention relates to a faucet operating device, and more particularly to an operating device of a type in which a handle is assembled to a faucet body via an intermediate assembly member interposed between the handle and the faucet body.

2. Description of the Related Art Conventionally, as a faucet operating device, a steering wheel is directly assembled to a spindle as a valve drive unit built in a faucet body.
For example, Patent Document 1 below discloses this kind of faucet operating device.

  On the other hand, when the structure of the faucet operation device including the handle is complicated, an intermediate assembly member is formed separately from the handle, and this is interposed between the handle and the faucet body. The handle is assembled to the faucet body through the intermediate assembly member.

In addition, the handle is a part that requires a strong design, so only the design is required for the handle, and the main part of the assembly mechanism to the faucet body is composed of a separate part (intermediate assembly member). Things are also done.
In particular, when the handle is a plated part having a plated surface, the plating process becomes difficult if a complicated assembly mechanism is integrally provided inside the handle.

  An example of this type of operation device for a faucet, that is, an operation device of a type in which a handle is assembled to a faucet body via a separate intermediate assembly member is disclosed in Patent Document 2 below, for example.

FIG. 10 shows a specific example thereof.
The figure is a view of the main part showing the faucet body and its peripheral part, in which 200 is a faucet body with a built-in valve, and 202 is a housing of the faucet body 200.
Reference numeral 204 denotes an operating device for operating the valve unit.

  Reference numeral 206 denotes a rotary control ring-shaped flow adjustment (flow rate adjustment) handle, and 208 denotes a sleeve as a part of the valve portion drive portion that changes the opening degree of the valve portion by rotating operation. An inner ring 210 and an outer ring 212 as operating force transmission members are interposed between a flow control handle (hereinafter simply referred to as a handle) 206.

The rotational operating force applied to the handle 206 is transmitted to the sleeve 208 via the outer ring 212 and the inner ring 210.
Thereby, the valve portion operates so as to change the opening, and the flow rate adjusting operation in the valve portion is performed.

  The outer ring 212 also serves as a first intermediate assembly member for assembling the handle 206 to the faucet body 200. Between the handle 206 and the faucet body 200, the outer ring 212 and the cylindrical shape are formed. A second intermediate assembly member 214 is interposed.

In this operating device, a cylindrical second intermediate assembly member 214 is assembled to the faucet body 200, and the second intermediate assembly member 214 is externally attached as a first intermediate assembly member. The handle 206 is assembled to the faucet body 200 via the ring 212 and the outer ring 212 by assembling the handle 206 in a connected state.
Here, the second intermediate assembly member 214 is fastened and fixed to the faucet body 200 with a screw at the bottom.

  On the other hand, the outer ring 212 integrally has an elastic claw portion 218 having a hooking claw 216 at the tip, and this elastic claw portion 218 is provided on the outer peripheral portion of the second intermediate assembly member 214. It is assembled to the second intermediate assembly member 214 by being latched to the stop projection (latching portion) 220.

In this operating device, when the elastic claw portion 218 is elastically expanded and deformed, the latching of the elastic claw portion 218 with respect to the latching protrusion 220 is released.
Thus, when the latch is released, the outer ring 212 is detached together with the handle 206 upward in the figure.

  Therefore, in this operating device, the slip prevention ring 222 is disposed on the outer peripheral side of the elastic claw portion 218, and after the outer ring 212 is assembled to the second intermediate assembly member 214, the slip prevention ring 222 in the retracted position shown in the figure. Is moved to the lower locking position in the drawing, that is, the position where the elastic claw portion 218 is prevented from expanding, and the outer ring 212 is locked to the assembled position.

  By the way, in the case of this operating device, even if the removal prevention ring 222 is not positioned at the lock position, when the handle 206 is assembled, the appearance is the same as when the construction is completed, and maintenance work etc. is performed at the faucet installation site. When this is done, it may happen that the slip prevention ring 222 remains in the retracted position, that is, forgetting to place the slip prevention ring 222 in the lock position.

  In this case, since the handle 206 is not firmly assembled and fixed to the faucet body 200, the handle 206 may come off together with the outer ring 212 when a force is applied to the handle 206, and may come off.

JP-A-10-213261 JP 2007-46770 A

  The present invention is based on the circumstances as described above, and the intermediate assembly member is assembled by engaging the elastic claw portion with the engagement portion on the faucet body side, and the handle is connected to the faucet via the intermediate assembly member. An object of the present invention is to provide a faucet operating device that can securely position a slip-off prevention ring at a lock position during construction or maintenance in a structure that is assembled and fixed to a main body.

  Thus, according to the first aspect of the present invention, there is provided (a) a handle and (b) separate from the handle and interposed between the handle and the faucet body, and assembling the handle to the faucet body. It has an elastic claw part that is an intermediate member that can be expanded, and the elastic claw part is hooked on a hook part provided on the outer peripheral part of the mounting part on the faucet main body side. An intermediate assembly member that is attached and can be removed from the attachment portion by elastically expanding the elastic claw portion, and (c) disposed on the outer peripheral side of the elastic claw portion, to expand the elastic claw portion. A locking ring separate from the handle that is movable between a locking position for blocking and a retracted position that allows the expansion, and the handle is connected to the intermediate assembly member Moving the prevention ring from the retracted position to the locked position by movement when assembled in a state; It characterized that you have.

  According to a second aspect of the present invention, in the first aspect, the handle has a stepped-shaped pushing portion on an inner surface, and the push-out portion moves the removal preventing ring to the locked position when the handle is assembled. It is characterized by being.

  According to a third aspect of the present invention, in any one of the first and second aspects, the elastic claw portion is provided with a protrusion that holds the removal prevention ring in the retracted position, and the handle is provided with the elastic claw portion. Along with the elastic deformation in the diameter reducing direction, the escape prevention ring is moved over the protrusion and moved to the lock position.

Effects and effects of the invention

  As described above, according to the present invention, the handle itself has a function of moving the slip-off prevention ring from the retracted position to the locked position by the movement when assembled to the intermediate assembly member. When the handle is assembled, the removal preventing ring can be automatically moved to the locked position, and the elastic claw portion of the intermediate assembly member can be prevented from expanding.

For example, for maintenance of the functional unit inside the operation device or faucet body, move the removal prevention ring to the retracted position at the faucet installation site, remove the intermediate assembly member, and then reassemble them In the prior art, there was a risk of forgetting to move the locking ring to the locked position, but in the present invention, the locking ring is automatically moved to the locked position simultaneously with the assembly of the handle. Since it is moved, such an inconvenience does not occur, and the intermediate assembly member can be firmly assembled and fixed when the assembly of the handle is completed.
Therefore, even when a sudden force is applied to the handle, the problem that the handle comes off with the intermediate assembly member and comes off can be solved.

In this case, the handle may be provided with a step-shaped pushing portion on the inner surface, and when the handle is assembled, the push-out portion moves the removal preventing ring to the lock position. ).
In this way, it is possible to provide a function of moving the prevention ring to the locked position at the same time as attaching to the handle with an extremely simple structure.

  The elastic claw is provided with a protrusion that holds the drop prevention ring in the retracted position. When the handle is assembled, the elastic claw is elastically deformed in the diameter reducing direction, and the drop prevention ring is moved over the protrusion and locked. It can be made to move to a position (Claim 3).

It is sectional drawing which showed the principal part of the faucet containing the operating device of one Embodiment of this invention. It is sectional drawing of the operating device of the embodiment. It is the perspective view which decomposed | disassembled and showed the operating device of the embodiment to each component. It is the perspective view which showed the intermediate | middle assembly member in the same embodiment with the peripheral part in the state before an assembly | attachment. It is a cross-sectional view of a flow control handle and an intermediate ring in the same embodiment. It is explanatory drawing of 1 process of the assembly | attachment procedure of the operating device of the embodiment. It is explanatory drawing of the assembly | attachment process following FIG. It is explanatory drawing of the assembly | attachment process following FIG. It is explanatory drawing of the assembly | attachment process following FIG. It is a figure which shows an example of the operating device of the conventional water faucet.

Next, embodiments of the present invention will be described in detail with reference to the drawings.
In FIG. 1, 10 is a faucet body, 12 is a housing of the faucet body 10, and an inflow side primary water channel 14 and an outflow side secondary water channel 16 are formed in the housing 12. .
The housing 12 has a cylindrical rising portion 18, and the rising portion 18 passes through the mounting hole 22 of the counter 20 and protrudes upward.

The rising portion 18 has a male screw portion 23 on the outer periphery of a portion protruding upward from the counter 20, and a fixing nut 26 having a female screw portion 24 on the inner periphery is screwed thereto.
The faucet body 10 is fixed to the counter 20 by screwing the fixing nut 26 so that the counter 20 is sandwiched from both the upper and lower sides by the fixing nut 26 and the stepped portion 28 below the counter 20.

A valve cartridge is accommodated in the housing 12.
A cartridge case 30 of the valve cartridge is divided into an upper part 30-1, a lower part 30-2, and an intermediate part 30-3, which are assembled in the vertical direction in the figure. .

The rising portion 18 also has a female screw portion 31 on the inner peripheral surface of the upper end portion, and a tightening nut 35 having a male screw portion 33 on the outer peripheral surface is screwed therein.
The cartridge case 30 is pressed and fixed downward with respect to the housing 12 by screwing the tightening nut 35.

A main valve 32 is disposed on the main water channel composed of the primary water channel 14 and the secondary water channel 16.
The main valve 32 is seated on a main valve seat 34 configured at the upper end of the cylindrical portion to close the main water channel, and opens the main water channel by being spaced upward from the main valve seat 34 in the figure. Water is circulated from the water channel 14 toward the secondary water channel 16.
Further, the flow rate of the flowing water is increased or decreased according to the distance from the main valve seat 34, that is, the valve opening.

  The main valve 32 is a diaphragm valve, and includes a rubber diaphragm film 36 that also serves as a sealing material, and a hard main valve body 38 that holds the rubber film 36. A cartridge case 30 is provided at the outer periphery of the diaphragm film 36. It is fixed to.

A back pressure chamber 40 is formed behind the upper side of the main valve 32 in the figure.
The back pressure chamber 40 causes the internal water pressure to act downward on the main valve 32 as a pressing force in the valve closing direction.
The main valve 32 is provided with a through introduction small hole (not shown) that allows the primary side water passage 14 and the back pressure chamber 40 to communicate with each other, and the water in the primary side water passage 14 is back pressured through the introduction small hole. By flowing into the chamber 40, the pressure in the back pressure chamber 40 increases.

The main valve 32 is also formed with a through-hole penetrating through the middle portion in the vertical direction, and a pilot valve 42 described later can be inserted therein.
A minute annular pilot water channel 44 is formed between the inner peripheral surface of the through hole and a drive shaft 47 described later, and water in the back pressure chamber 40 passes through the pilot water channel 44 as a water drainage channel and the secondary side water channel 16. It is possible to leak to

A pilot valve seat 48 having an O-ring 46 as a seal material is provided around the through hole of the main valve 32.
Reference numeral 47 denotes a valve portion, more specifically, a drive shaft for driving the pilot valve 42. The pilot valve 42 is integrally formed on the lower end side of the drive shaft 47 and on the upper side of the small diameter portion 49.

FIG. 1 shows a state in which the pilot valve 42 is fitted to the O-ring 46 of the pilot valve seat 48 and the pilot water channel 44 is closed, that is, the valve is closed. At this time, the back pressure chamber 40 and the secondary side water channel 16 are shut off. It is in the state that was done.
Accordingly, the main valve 32 is also seated on the main valve seat 34 and is in a closed state.

If the pilot valve 42 moves backward from this state and a gap is formed between the pilot valve 42 and the pilot valve seat 48, specifically, the O-ring 46 (that is, when the pilot valve 42 is opened), The water in the pressure chamber 40 flows out to the secondary water channel 16 through the pilot water channel 44, and the pressure in the back pressure chamber 40 decreases.
Then, the pressure in the primary water channel 14 overcomes the pressure in the back pressure chamber 40, and the main valve 32 is pushed upward by the pressure. Here, the main valve 32 is opened.

  When the main valve 32 is opened, that is, when the main valve 32 is moved backward in the figure, the clearance between the pilot valve 42 and the O-ring 46, that is, the opening of the pilot water channel 44 becomes small. The flow rate of the water flowing out through the chamber decreases, the pressure in the back pressure chamber 40 gradually increases, and the main valve 32 moves backward at a position where the pressure in the back pressure chamber 40 and the pressure in the primary water channel 14 are balanced. Stop.

Thereafter, the main valve 32 moves in the same direction as the pilot valve 42 following the backward movement of the pilot valve 42 so as to balance the pressure of the back pressure chamber 40 and the pressure of the primary side water passage 14, thereby opening the main water passage. Increase the degree.
Conversely, when the pilot valve 42 moves forward in the figure downward, the main valve 32 follows this and moves forward downward in the figure, and the flow rate of the water flowing through the main water channel with the opening of the main water channel being small is reduced. Decrease.

A male screw member 50 that is a separate member is coupled to the upper end of the drive shaft 47 via a ball joint so as to be tiltable with respect to the drive shaft 47.
The male screw member 50 has a flat shape in which the planar shape is long in the left-right direction in the drawing, and the front surface and the rear surface in the direction perpendicular to the paper surface are flat engagement surfaces.
The front and rear engagement surfaces are sandwiched forward and backward by a pair of clamping pieces 54 of the locking member 52, and the male screw member 50 is locked.
This male screw member 50 is provided with male screw portions on the left and right peripheral surfaces in the figure, and this male screw portion is screwed to the female screw portion on the inner peripheral surface of a cylindrical female screw member 56 arranged on the outside thereof. Yes.

A push button 58 disposed on the outer side of the female screw member 56 is assembled in an integrally rotated state, and a sleeve 60 disposed on the outer side of the push button 58 is also assembled in an integrally rotated state. Yes.
On the other hand, a rotor 62 is disposed below the push button 58, and this rotor 62 is mounted on the upper surface of the outward flange portion 64 of the female screw member 56 so as to be relatively rotatable.

  An upper end of a spring (here, a coil spring) 66 is in contact with the lower surface of the flange portion 64 of the female screw member 56, and the female screw member 56, the rotor 62, the push button 58, and the female screw member 56 are contacted by the spring 66. A drive shaft 47 integrally provided with a male screw member 50 and a pilot valve 42 which are screw-coupled is biased upward in the drawing.

  In this embodiment, when the sleeve 60 rotates, the rotational movement is transmitted from the push button 58 to the cylindrical female screw member 56, the female screw member 56 rotates, and the female screw member 56 rotates. A drive shaft 47 integrally provided with the pilot valve 42 moves forward and backward in the vertical direction in the figure by screw feed through the male screw member 50.

That is, the pilot valve 42 is moved forward and backward, and the main valve 32 is moved forward and backward along with this, whereby the valve opening of the main valve 32 is changed and the flow rate of water in the main water channel is changed.
That is, in this embodiment, the flow rate is adjusted by rotating the sleeve 60.

  On the other hand, each time the push button 58 is pushed downward, the rotor 62 rotates, and the protrusion projecting radially outward engages with the cam-shaped engagement tooth formed on the inner surface of the sleeve 60, and the vertical position. The position of the pilot valve 42 is changed to the push-in position and the raised position, more specifically, the valve-closing position and the valve-opening position, and the position is held at each position. .

  The rotor 62, the sleeve 60, the spring 66 and the like constitute a thrust lock mechanism, and the pilot valve 42, that is, the main valve 32 is closed and opened each time the push button 58 is pushed by the thrust lock mechanism. The positions are alternately changed and are held at the respective positions.

In this embodiment, the drive shaft 47, the male screw member 50, the female screw member 56, the push button 58, the sleeve 60, the spring 66, and the like constitute a valve portion drive mechanism (drive portion).
The structures of these valve parts and their drive parts are basically known ones similar to those disclosed in Patent Document 2, so that further detailed explanation is omitted here.

In FIG. 1, reference numeral 68 denotes an operating device, which has a push-type water stop operating portion 70 inside a flow control handle 78 described later, as shown in FIG.
The spout water operation unit 70 is provided with a pressing unit 72 that presses the push button 58 downward in a shape that falls downward at the center.

  Further, the outer peripheral portion is provided with a retaining portion 74 that protrudes in an annular shape radially outward, and this retaining portion 74 abuts against the inward flange portion 76 at the upper end portion of the flow control handle 78, thereby The water stop operation part 70 is prevented from coming off.

  Reference numeral 78 denotes a rotary cylindrical flow control handle, which is integrally provided with a knob 80 projecting radially outward at a predetermined circumferential position on the outer peripheral surface thereof.

  As shown in FIG. 2, the rotational movement of the flow control handle 78 is transmitted to the sleeve 60 and rotated between the inner side of the flow control handle 78 and the sleeve 60, that is, the flow control handle 78. An intermediate ring 82 having a cylindrical shape is provided as an operation force transmission member that transmits the operation force to the sleeve 60.

As shown in FIGS. 3 and 5, the flow control handle 78 has a plurality of rib-like engaging projections 84 projecting radially inwardly on the inner surface of the peripheral wall 83 with a gap in the circumferential direction. It is provided at the place.
On the other hand, the cylindrical intermediate ring 82 is provided with a groove-like engagement recess 86 (see FIG. 3) at a position corresponding to the outer peripheral surface of the peripheral wall 85 and the engagement protrusion 84, as shown in FIG. As shown, an engaging convex portion 84 on the flow adjustment handle 78 side is engaged therewith.
The intermediate ring 82 rotates integrally with the flow control handle 78 based on the engagement between the engagement convex portion 84 and the engagement concave portion 86.

As shown in FIG. 1, the intermediate ring 82 is also provided with a protruding piece 88 that protrudes inward in the radial direction after rising upward from its bottom.
As shown in FIG. 5, an engagement recess 90 is provided at the inner peripheral end of the projecting piece 88, and the engagement recess 90 protrudes radially outward from the sleeve 60. It is engaged with the portion 92.

The sleeve 60 rotates integrally with the intermediate ring 82 by the engagement between the engagement recess 90 and the engagement protrusion 92.
Therefore, in this embodiment, when the flow control handle 78 is rotated, the sleeve 60 rotates integrally through the intermediate ring 82, and the opening degree of the valve portion is increased or decreased. That is, the flow rate flowing through the main channel is increased or decreased.

The intermediate ring 82 is a resin member. As shown in FIG. 3, a latching protrusion 94 is integrally formed on the outer peripheral surface of the intermediate ring 82 on the bottom surface of the groove forming the engaging recess 86 and the lower end portion in the figure. Is provided.
On the other hand, the flow control handle 78 is also a resin member, and a latching projection 96 corresponding to the latching projection 94 of the intermediate ring 82 is integrally provided on the inner surface thereof as shown in FIG.

In this embodiment, when the flow adjustment handle 78 is pushed downward with respect to the intermediate ring 82, the latching protrusion 96 of the flow adjustment handle 78 hits the latching protrusion 94 of the intermediate ring 82 at a certain point and further pushes it downward. And the latching projection 96 passes over the latching projection 94 and passes downward, and when it passes, the latching projections 94 and 96 are engaged in the vertical direction as shown in FIG. Thus, the flow control handle 78 is assembled to the intermediate ring 82 so as to prevent it from coming off.
The pushing end of the flow adjustment handle 78 with respect to the intermediate ring 82 is defined by the inward flange portion 76 of the upper end portion of the flow adjustment handle 78 contacting the upper end of the peripheral wall portion 85 of the intermediate ring 82.

  In the present embodiment, the intermediate ring 82 as an operation force transmission member also serves as a first intermediate assembly member for assembling the flow control handle 78 to the faucet body 10. It is assembled to the faucet body 10 via the ring 82 and the second intermediate assembly member 98 of FIG.

The second intermediate assembly member 98 is a resin member, and as shown in FIG. 3, has a flange portion 100 and an arcuate rising portion 102 rising from the flange portion 100, and further includes a flange portion. An elastic claw portion 103 extending downward is integrally formed on the lower surface side of 100.
As shown in FIG. 2, the elastic claw portion 103 integrally has a latching claw 104 at the lower end.
As shown in FIG. 4, the second intermediate assembly member 98 also has a positioning protrusion 107 integrally therewith.

The intermediate assembly member 98 hooks the latching claw 104 to the latching recess (latching part) 105 at the upper end of the faucet body 10 while elastically expanding the elastic claw 103, thereby The stopper body 10 is assembled in the vertical direction.
Also, the positioning protrusion 107 shown in FIG. 4 provided on the inner surface is engaged with the positioning recess 108 shown in FIG. 4 provided in the faucet body 10 to be positioned in the rotational direction with respect to the faucet body 10. .

As shown in FIG. 3, the push-type spouting water operating portion 70 is provided with an arc-shaped falling portion 110, and a protruding portion 112 for positioning in the rotational direction is further provided on the falling portion 110. Is provided.
On the other hand, the rising portion 102 of the intermediate assembly member 98 is provided with a groove-like recess 114 for positioning in the rotational direction as shown in FIG.
The spouting water operating unit 70 is assembled so that the falling part 110 is fitted into the rising part 102 of the intermediate assembly member 98, and the protrusion 112 of the falling part 110 is connected to the intermediate assembly member 98. By being fitted into the recess 114 of the rising portion 102, the intermediate assembly member 98 is positioned and fixed in the rotational direction.

The above-described intermediate ring 82 is assembled to the intermediate assembly member 98 using the fixing ring 116 shown in FIG. 3 as follows.
As shown in FIG. 3, the fixing ring 116 has a plurality of protrusions 118 on the inner peripheral side.
On the other hand, the intermediate assembly member 98 is provided with an annular portion protruding in a stepped manner from the flange portion 100, and an engagement groove 120 is provided along the annular portion.
The engagement groove 120 is provided with a notch 122 through which the protrusion 118 of the fixing ring 116 passes in the vertical direction.

In order to assemble the intermediate ring 82 to the intermediate assembly member 98, the intermediate ring 82 is placed on the flange portion 100 of the intermediate assembly member 98, and the protrusion 118 of the fixing ring 116 is fitted into the engagement groove 120. At this time, the fixing ring 116 is pushed downward so that the protrusion 118 passes through the notch 122 of the engaging groove, and then the fixing ring 116 is rotated clockwise in FIG. Fit into the groove 120.
Here, as shown in FIG. 2, the intermediate ring 82 is assembled and fixed to the intermediate assembly member 98 with the fixing ring 116 and the flange portion 100 of the intermediate assembly member 98 sandwiching the bottom of the intermediate ring 82. The

In this embodiment, as shown in FIG. 2, a resin-made prevention ring 124 for preventing the elastic claw 103 of the intermediate assembly member 98 from expanding is provided.
The omission prevention ring 124 is configured such that the inner peripheral portion is thicker than the outer peripheral portion. In FIG. 2, 126 indicates the thick portion.

As shown in the partially enlarged view of FIG. 6, the elastic claw portion 103 of the intermediate assembly member 98 is provided with a projection 128 for holding the removal preventing ring 124 in the retracted position.
Further, the inner surface of the peripheral wall portion 83 of the flow control handle 78 is provided with a stepped pushing portion 130 for pushing the drop prevention ring 124 in the retracted position downward in the outer circumferential portion as shown in FIG. Yes.
Here, as shown in FIGS. 3 and 7, the push-in portion 130 is configured by a rib provided vertically on the inner surface of the flow control handle 78.

Next, the procedure for assembling the operation device according to the present embodiment will be described below with reference to FIGS.
First, as shown in FIG. 6, the drop prevention ring 124 is held on the projection 128 of the elastic claw portion 103 of the intermediate assembly member 98, that is, in a state of being positioned at the retracted position, and in this state, the intermediate assembly member 98 is pushed downward with respect to the faucet body 10 (specifically, the upper end of the housing 12), and this is assembled to the faucet body 10.

At this time, the elastic claw 103 is elastically expanded, and the latching claw 104 at the lower end climbs over the upper portion 106 at the upper side of the latching recess 105 and is latched on the latching recess 105.
Further, the positioning protrusion 107 of the intermediate assembly member 98 engages with the positioning recess 108 of the faucet body 10, and the intermediate assembly member 98 is positioned and fixed with respect to the faucet body 10 in the rotational direction. .

Next, as shown in FIG. 7, the intermediate ring 82 that also serves as the first intermediate assembly member is fixed to the intermediate assembly member 98 by the fixing ring 116.
Further, after the spout water operation unit 70 is inserted into the peripheral wall portion 85 of the intermediate ring 82, the flow control handle 78 is pushed downward from the outside of the peripheral wall portion 85 of the intermediate ring 82.
At this time, the engaging convex portion 84 of the flow control handle 78 is fitted into the engaging concave portion 86 of the intermediate ring 82 to be engaged, and these are integrated in the rotation direction.

In the process of pushing the flow control handle 78, the latching projection 96 on the inner surface of the flow control handle 78 hits the latching projection 94 on the outer surface of the intermediate ring 82 as shown in the partially enlarged view of FIG. When the flow control handle 78 is pushed downward, as shown in FIG. 9, the latching projection 96 moves over the latching projection 94 to its lower position, and the latching projections 96 and 94 move in the vertical direction. Is engaged.
The pushing end of the flow adjustment handle 78 is defined by the inward flange portion 76 at the upper end contacting the upper end of the peripheral wall portion 85 of the intermediate ring 82 as described above.

  When the flow control handle 78 is pushed downward, as shown in the partial enlarged view of FIG. 8, the removal preventing ring 124 held at the retracted position above the projection 128 outside the elastic claw 103. Is pushed downward by the pushing portion 130 of the flow control handle 78.

The pull-out prevention ring 124 moves downward over the protrusion 128 of the elastic claw portion 103 by the pushing action of the pushing portion 130, and as shown in the partially enlarged view of FIG. 9, the lower end portion of the elastic claw portion 103 That is, it is located outside the position where the latching claw 104 and the latching recess 105 are engaged, and is located at the lock position where the elastic claw 103 is prevented from expanding.
Here, the elastic claw portion 103 is in a state in which it cannot be expanded and deformed, and the intermediate assembly member 98 is firmly fixed to the upper end portion of the faucet body 10 in a retaining state.
Here, the slip-off prevention ring 124 that has moved to the lock position is supported by the fixing nut 26 located below the ring.

  In order to remove the intermediate assembly member 98 from the upper end of the faucet body 10, first, the flow control handle 78 is removed, and then the fixing by the spouting water operating unit 70 and the fixing ring 116 is released, and the intermediate ring 82 is removed. Or after removing the flow control handle 78, the removal preventing ring 124 can be pushed upward from the locked position to the retracted position to release the lock.

According to the present embodiment as described above, the maintenance prevention ring 124 is moved to the retracted position at the faucet installation site for the maintenance of the operation unit 68 and the functional parts inside the faucet body 10, and the like. When the flow control handle 78, the intermediate ring 82, and the intermediate assembly member 98 are removed and then reassembled, the removal prevention ring 124 is automatically moved to the locked position simultaneously with the assembly of the flow control handle 78. When the assembly of the flow control handle 78 is completed, the intermediate assembly member 98 can be firmly fixed.
Therefore, even when an unexpected force is applied to the flow adjustment handle 78, the problem that the flow adjustment handle 78 comes off together with the intermediate assembly member 98 and comes off can be solved.

  Further, in this embodiment, a stepped-shaped push portion 130 is provided on the inner surface of the flow control handle 78, and the drop prevention ring 124 is moved to the lock position by the push portion 130 when the flow control handle 78 is assembled. Therefore, it is possible to give the flow control handle 78 a function of moving the removal preventing ring 124 to the lock position at the same time as the assembly, with an extremely simple structure.

  Although the embodiment of the present invention has been described in detail above, this is merely an example, and the present invention shows the structure of the operating device, the first intermediate assembly member, and the elastic claw portion with respect to the second intermediate assembly member. It is also applicable to the case where it is assembled by latching and the elastic claw part is prevented from spreading with a prevention ring, and in the present invention, the hook part on the faucet body side is radially outward. The present invention can be applied not only to an operation device for adjusting the flow rate but also to an operation device for performing temperature adjustment and the like. The present invention can be configured in various forms without departing from the scope.

10 Water faucet body 68 Operating device 78 Flow control handle 98 Intermediate assembly member 103 Elastic claw part 105 Retaining recess
124 Detachment prevention ring 128 Protrusion 130 Pushing part

Claims (3)

(B) A handle and (b) an intermediate member that is separated from the handle and is interposed between the handle and the faucet body, and is an intermediate member for assembling the handle to the faucet body. The elastic claw portion is attached to the attachment portion by hooking the elastic claw portion on the outer peripheral portion of the attachment portion on the faucet body side, and the elastic claw portion is elastically expanded. An intermediate assembly member that can be pulled out from the mounting portion by opening, and (c) a lock position that is disposed on the outer peripheral side of the elastic claw portion and prevents the expansion of the elastic claw portion; and A removable ring that is movable separately from the retracted position, and separate from the handle,
The faucet operating device according to claim 1, wherein the handle is configured to move the removal prevention ring from the retracted position to the locked position by movement when assembled to the intermediate assembly member. .   2. The handle according to claim 1, wherein the handle has a stepped-shaped pressing portion on an inner surface thereof, and the pulling prevention portion is moved to the lock position by the pressing portion when the handle is assembled. A faucet operating device.   3. The elastic claw portion according to claim 1, wherein the elastic claw portion is provided with a protrusion that holds the drop prevention ring in the retracted position, and the handle is elastically deformed in a diameter reducing direction of the elastic claw portion. And the stopper is moved over the protrusion and moved to the locked position.

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