JP2569264Y2 - Single lever type faucet - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a single lever type faucet in which the amount of water discharged is adjusted by operating a single lever up and down.

[0002]

Conventionally, in the single-lever type faucet such as described above, adjustment of water spouting volume by varying the degree of opening of the closing valve by rotating the single lever provided in the faucet body in a vertical direction Are doing.

[0003]

However, in the single-lever type faucet described above, the operation of adjusting the amount of water discharged by rotating the lever up and down is simple. At the same time, the lever may be rotated to the vicinity of the fully opened position due to excessive momentum, whereby an unexpectedly large amount of water is discharged. Then, every time this operation error is made, useless water discharge and violent water splashing are repeated.

In the present invention, the single lever type faucet as described above is provided with a means for restricting the shift of the lever to a position near the fully opened position, thereby preventing an operation error of the lever and accompanying waste water. And to eliminate water splashing.

[0005]

The present invention to solve the aforementioned problems SUMMARY OF THE INVENTION, in the single lever faucet for performing adjustment of water spouting volume by the vertical turning operation of the single lever, the rotation range of the single lever A stopper device that divides a normal water discharge range from the valve closing position to the regulation position and a large water discharge range from the regulation position to the fully open position, and regulates the transition of the single lever from the normal water discharge range to the large water discharge range.
And the stopper mechanism is a lever
Regulation that operates to release the regulation of the stopper mechanism
Release operation means and return from the large water discharge range to the normal water discharge range
The stopper mechanism is released from the restriction release state by the rotation of the bar.
There is provided a regulation return means for automatically returning to the regulation state .

[0006]

According to the above means, the single lever is basically rotated in the vertical rotation range from the valve closing position to the fully opened position.
That is, the restricting position is determined, and the rotation of the lever to the fully opened side from the restricting position is prohibited by the stopper mechanism. Therefore, the single lever can rotate within the normal water discharge range from the valve closing position to the regulation position in normal use, and the water discharge amount can be adjusted within an appropriate amount corresponding to the rotation range. Will be In addition, by releasing the restriction of the stopper mechanism by operating the restriction release operation hand , the lever can be moved to the large water discharge range, and the movement of the lever performs large water discharge corresponding to the large water discharge range. Furthermore, one
Even if the restriction of the stopper mechanism is released, the lever
If you return to the water range or stop discharging water, the storage mechanism will
Automatically returns to regulated state.

[0007]

As described above, the present invention provides a stopper mechanism that inhibits or cancels the shift of the single lever from the normal water discharge range to the large water discharge range, and provides a stopper mechanism that can be used in normal operation. The rotation range (normal water discharge range) and the rotation upper limit (restriction position) of the lever corresponding to the adjustment range of the water discharge amount are determined, and the lever is inadvertently rotated to the vicinity of the fully open position (large water discharge range). This prevents waste water and violent water splashing caused by an operation error that causes the lever to rotate to near full open, and reduces the amount of water discharge obtained by the rotation of the lever. There is an advantage that the adjustment range can be set to an appropriate range that is normally used.

When the restriction of the stopper mechanism is released by operating the restriction release operation means, the lever can be rotated from the restriction position to the full water discharge range from the full open position, and if necessary, can be rotated. A large amount of water can be discharged. In addition, as described above, the present invention
Control state and regulation release state, that is, normal water discharge and large amount water discharge.
Can be selected, but once the regulation of the stopper mechanism is
Even if it is released, return the lever to the normal water discharge range or
If stopped, the stopper mechanism automatically returns to the regulated state
So, the condition that regulates the amount of water discharged is the main use condition,
To be used in a state that discharges a large amount only in special cases
Water saving effect, prevention of water hammer, notification effect
You can expect. In addition, the regulation release operation means
Since the lever is provided on the lever, the lever can be turned fully open
And regulation release operation can be performed with one hand and simultaneously
Therefore, there is an effect that the operability is excellent and the visual observation is easy.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The faucet shown in FIGS. 1 to 9 is a single-lever type mixing tap, and a single lever 2 is provided on the upper part of the mixing tap main body 1 so as to be rotatable vertically and horizontally, and inside the mixing tap main body 1. Has an on-off valve 3 made of ceramics whose opening is adjusted by rotating the single lever 2 described above.

The above-mentioned single lever 2 is provided with its base end side fitted in the upper part of the mixer tap main body 1, and the swing lever 10 fixed to the back surface of the lever base end is fixed to the main body sleeve 11.
The lever itself can be pivoted up and down and left and right by pivotally supporting the support member 12 which is fitted in the upper opening of the main body so as to be horizontally rotatable via the support shaft 13. It is supported by.

The tip of the swinging rod 10 is inserted into a square hole 14 formed in the upper part of the on-off valve 3, whereby the single lever 2 is swung up and down and left and right by a turning operation. The tip of the swinging rod 10 that moves and rotates slides a movable plate 3b of the on-off valve 3 described later in the radial direction and the rotating direction.

The on-off valve 3 is a fixed plate 3 made of ceramics.
a and a movable plate 3b slidably overlapping the upper surface of the fixed plate 3a. As shown in FIG. 2, the fixing plate 3a has a hot water supply hole 4 communicating with the hot water supply channel, a water supply hole 5 communicating with the water supply passage, and an outflow hole 6 communicating with the water discharge port 1a of the mixer tap main body 1.

On the other hand, the movable plate 3b is provided with a tapered hole 7 and an arc hole 8 which communicate with each other through a mixing channel 9. As shown in FIGS. 2, 5, and 9, when the single lever 2 is rotated upward from the state of FIG. 2, the movable plate 3b slides in the radial direction, and the arc hole 8 is aligned with the hot water supply hole 4 and the water supply hole 5. Then, mixing of hot and cold water is performed. Then, by rotating the single lever 2 up and down from this state, the matching area between them increases and decreases, and the flow rate of the mixed water is adjusted.

Then, by moving the movable plate 3b by rotating the single lever 2 in the horizontal direction (left-right direction) from the opened state, the opening of the hot water supply hole and the water supply hole 5 overlapping the arc hole 8 is opened. The size of the area ratio changes,
The temperature of the mixed water is adjusted by changing the mixing ratio of hot water and water mixed into the mixing flow path 9.

By the way, the opening / closing valve 3 of the mixing tap is
As shown in FIG. 1, the single lever 2 is in the valve closing position P at the upper end.
When the lever 2 is turned from the upper end position to the lower end, the valve is gradually opened (FIG. 5), and the valve is fully opened at the lower end fully open position P2. (FIG. 9). When the lever 2 is in the fully open state with the lower end in the fully open position P2, the amount of water discharged from the water discharge port 1a is considerably large. However, since the operation of adjusting the water discharge amount by the lever 2 is simple as described above, the lever 2 may be pivotally moved to the vicinity of the fully open position P2 simultaneously with the downward movement of the lever 2 when the valve is opened. As a result, an unexpectedly large amount of water is spouted, and water splashes violently at the bottom of a sink or a hand-washing machine.

Therefore, in the mixing tap described above, in order to prevent a large amount of water discharge due to an operation error of the single lever 2,
A stopper mechanism 50 for restricting the rotation of the lever 2 is provided in a range where a large amount of water is discharged in the vertical rotation range of the lever 2, that is, in a large water discharge range S2 near the fully open position P2 of the lever 2.

In this embodiment, the single lever 2
The range from the valve closing position P0 to the restriction position P1 at which the stopper mechanism 50 operates in the rotation range of the normal rotation is defined as a normal water discharge range S1 in which an appropriate amount of water can be discharged.
The large water discharge range S is defined by the range from
It is 2.

The stopper mechanism 50 includes a push button 51 provided on the upper surface of the base end of the single lever 2, a stopper plate 52 which is rotated by operating the push button 51, and a stopper rod 53 which the stopper plate 52 contacts. Have.

The push button 51 of the stopper mechanism 50 has a mounting hole 54 formed substantially perpendicularly on the upper surface of the base end of the single lever 2.
The upper end of the connecting rod 55 is screwed into the internal hole opened toward the lower end via an acme screw 51a. Further, the push button 51 is prevented from rotating during the pushing operation by engaging a claw protruding from the outer periphery thereof into a locking groove 54 a formed in a recess along the mounting hole 54.

The connecting rod 55 penetrates through the bottom of the mounting hole 54, and has a semicircular stopper plate 52 integrally formed at the lower end thereof. It is opposed to the tip of the stop bar 53. And
A spring 56 is mounted between the lower end of the push button 54 and the bottom of the mounting hole 54 so that the push button 54 is returned to the upper position after being pushed.

On the other hand, an impact rod 53 provided on the mixing tap main body 1 side is vertically penetrated and supported by an outer peripheral portion of a rotating plate 57 which rotates integrally with the support member 12 of the swinging rod 10 and has a single lever. In the case of horizontal rotation, the lower end is
1, the rotating plate 57,
The swinging rod 10 and the single lever 2 are integrated and horizontally rotated. That is, the tip of the impact rod 53 is always in a positional relationship to face the stopper plate 52. The stopper rod 53 is connected to the connection screw 5.
The length can be adjusted by screwing 3a.

Here, the relationship between the stopper plate 52 and the stopper rod 53 will be described in detail. As shown in FIG. 4, the stopper plate 52 stops the lower end of the connecting rod 55 at substantially the center of a semicircular straight portion. And pivots about this connecting rod 55.

When the push button 51 is in the upper position, the tip of the impact rod 53 is located along the inside of the circumference of the stopper plate 52 (FIG. 4), and in this state, the lever 2 is turned downward. When the lever 2 rotates to the regulating position P1, the stopper plate 52 abuts against the tip of the stop rod 53, and the further rotation of the lever 2 is prohibited (FIG. 3). .

As described above, by restricting the upper limit of the rotation of the lever 2 at the restriction position P1 by the stopper mechanism 50, the wasteful operation caused by the operation error of rotating the lever 2 to the vicinity of the fully open position P2 is wasted. Water and severe water splashing can be prevented. In addition, by setting the regulation position P1 of the lever 2, that is, the normal water discharge range S1 according to the user's request, it is possible to obtain an appropriate water discharge amount according to the user's adjustment range of the water discharge amount accompanying the rotation of the lever 2. Can be set to a range.

The setting of the above-mentioned restriction position P1 can be adjusted by changing the length of the stop rod 53 and moving the stop position between the stop rod 53 and the stopper plate 52 up and down. It is.

Next, when the push button 51 is pressed, the stopper plate 52 is rotated approximately 90 degrees by the screwing of the acme screw 51a, and the stopper bar 53 is out of the range of the stopper plate 52, whereby the above-described restriction is released. 6 and 7), whereby the lever 2 can be lowered to the large-volume water discharge range S2 (FIG. 8). Therefore, when a large amount of water is to be discharged, the stopper mechanism 50 can be easily pressed by pressing the push button 51.
Can be released, and the lever 2 can be moved to the large-volume water discharge range S2 to quickly execute the large-volume water discharge. When the lever 2 is raised, the pushed push button 51 returns to the upper position due to the elasticity of the spring 56, and returns to the regulated state again.

The single-lever mixer tap shown in FIGS. 10 to 13 employs a different structure for the stopper mechanism 150. This stopper mechanism 150 has a mounting hole 154 at the base end of the single lever 2 similarly to the stopper mechanism 50 described above.
A push button 151, a connecting rod 155, and a stopper plate 152 are provided. The mounting hole 154 is formed to be relatively deep so as to be vertical when the lever 2 is at the valve closing position P0. , The push button 151 is attached to the mounting hole 1 described above.
It is formed long corresponding to 54.

In the stopper mechanism 150, members on the side of the mixer tap main body 1 which abut against the stopper plate 152 include:
An impact surface 153 formed on an upper edge portion of the support member 112 that is rotatably fitted into the upper opening of the sleeve 11. The support member 112 is formed in a ring shape as shown in FIGS. 11 to 13, and is formed by projecting a flange portion 112 a in a range of approximately half the circumference of the upper edge thereof. The flange 112a is formed by projecting the upper surface of the flange 112a in a quarter-arc cross section. In addition, the above-described stop surface 1
Reference numeral 53 is provided in a range corresponding to the rotation range of the stopper plate 152 that rotates with the horizontal rotation of the single lever 2.

The stopper mechanism 150 constructed as described above
According to this, when the push button 151 is in the protruding position, the stopper plate 152 is provided with the stopper surface 152 with one of the semicircular corners facing the center of the mixer tap main body 1 as shown in FIG.
It faces 53. When the lever 2 is lowered from the above state, when the lever 2 moves to the regulation position P1, the corner of the stopper plate 152 collides with the upper end of the collision surface 153, and the lever 2 is further lowered further. Rotation is prohibited (FIG. 11).

Therefore, also in the stopper mechanism 150 described above, the water discharge amount of the single lever 2 is normally adjusted in the normal water discharge range S1 as in the case of the stopper mechanism 50 described above, and the lever 2 is inadvertently increased. Water discharge range S2
Forbid to rotate up to. When the push button 51 is pressed as necessary to discharge a large amount of water, the stopper plate 152 is rotated approximately 90 degrees by screwing of the acme screw 151a, and thereby the straight portion of the semi-circular stopper plate 152 as shown in FIG. Is formed along the 1/4 arc surface of the outer periphery of the impact surface 153, and the above-mentioned impact relationship is released, and at the same time, the regulation is released (FIG.
2).

When the push button 151 is depressed, the pivoted stopper plate 152 can be moved downward along the 弧 arc surface of the outer periphery of the stop surface 153 as shown in FIG. Possible, and this allows lever 2
Can be performed by lowering the large water discharge range S to 2. When the lever 2 is raised, the pressed push button 51 returns to the upper position due to the elasticity of the spring 156, and returns to the restricted state.

The upright 112b provided at the end of the stop surface 153 of the support member 112 is a stop for temperature control. This is to prevent the stopper 152 from hitting when the lever 2 is horizontally rotated to the high temperature side, thereby preventing the lever 2 from inadvertently moving to the high temperature range. When the high-temperature water discharge is performed by horizontally rotating the lever 2, the push button 51 is depressed to release the above-mentioned locking relationship, and then the lever 2 is moved to the high-temperature range. That is, the stopper mechanism 150 also has a function of inhibiting the lever 2 from shifting to the high-temperature water discharge range.

A stopper mechanism 250 provided in the single-lever type mixing tap shown in FIGS. 14 and 15 includes a push button 251 provided at a front portion of the base end of the single lever 2,
A stopper plate 252 attached to the push button 251;
And the stopper plate 252 provided on the mixer tap main body 11 side.
Is provided with a stop surface 253 to stop.

The above-described push button 251 is fitted in a mounting hole 254 formed in the front of the base end of the single lever 2,
A stopper plate 252 is attached to the base end via a screw 255, and a spring 256 is elastically mounted between the bottom of the mounting hole 254 and the base end of the push button, so that the spring 256 comes and goes with a required stroke. I have. The stopper plate 252 attached to the push button 251 is viewed in a state of protruding downward into the working space 257 formed at the base end of the single lever 2, and is externally moved inside the working space 257 in accordance with the operation of the push button 251 extending / retracting. Move between the position and the inside position.

On the other hand, the stop surface 253 is formed at the upper opening edge of the mixer tap main body 1, and when the lever 2 is lowered to the regulation position P 1, the tip of the stopper plate 252 located at the outer position stops against the stop surface 253. The lever 2 is stopped to prevent the lever 2 from rotating further downward.

When the push button 251 is pressed as required to discharge a large amount of water, the stopper plate 252 shifts to the inner position to release the above-mentioned locking relationship, and as shown in FIG. It is possible to move to.
When the push button 251 is released, when the lever 2 is raised, the button 251 returns to the outer position due to the elasticity of the spring 256, and returns to the restricted state again.

A stopper mechanism 350 provided in the single lever type mixing tap shown in FIGS. 16 and 17 includes a push button 351 provided on the upper surface of the base end of the single lever 2,
A stopper body 352 which is pushed by the tip of the push button 351 and swings, and a stopper 353 provided on the mixing tap main body 11 side and against which the stopper body 352 collides are provided.

The above-mentioned push button 351 is fitted into a mounting hole 354 formed in the upper surface of the base end of the single lever 2,
A push rod 355 is attached to the base end thereof, and a spring 3 is provided between the bottom of the mounting hole 354 and the push button base end.
56 is configured to be mounted and to appear and disappear with a required stroke.

The stopper body 352 that swings by the push-in operation of the push button 351 is swingably supported by being supported by a support shaft 352a in an operating space 357 formed at the base end of the single lever 2. The lower part of the push button 351 is formed in a substantially sector shape, and the upper part of the push button 351 is extended in a rod shape, and the tip of the push rod 355 that is seen in the working space 357 is brought into contact with the push button 351. The upper half is pushed by the operation, and the lower half of the sector is rotated inward and moved.

On the other hand, the stop surface 353 is formed at the upper opening edge of the mixer tap main body 1, and the lower end of the stopper body 352 located outside when the lever 2 is lowered to the regulation position P 1 stops against the stop surface 353. Thus, the lever 2 is prohibited from rotating further downward. Further, when the push button 351 is pressed as necessary for discharging a large amount of water, the stopper 352 is formed.
When the lower half is rotated inward, the above-mentioned stop relationship is released, and as shown in FIG. 17, the lever 2 can be moved to the large water discharge range S2. The pressed button 351 immediately returns to the projecting position due to the elasticity of the spring 356,
Next, when the lever 2 is raised, the stopper body 352 returns to the outer position by its own weight, and returns to the restricted state again.

According to each of the single-lever type mixing taps described above, the restriction by the stopper mechanism can be released by pressing the push button provided on the single lever, so that the releasing operation of the stopper mechanism is simple, easy to understand, and highly practical. .

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of a single-lever mixer tap embodying the present invention.

FIG. 2 is a sectional view taken along line ZZ in FIG.

FIG. 3 is an enlarged view showing a stopper mechanism portion of the mixer tap with a part cut away.

FIG. 4 is a sectional view taken along line YY in FIG. 3;

FIG. 5 is a cross-sectional plan view of the on-off valve showing an intermediate valve opening state.

FIG. 6 is a side view showing a part of the stopper mechanism part where the push button is pressed, which is cut away.

FIG. 7 is a sectional view taken along line XX in FIG. 6;

FIG. 8 is an enlarged view showing a stopper mechanism part in a state where the restriction is released and the lever is lowered, with a part cut away.

FIG. 9 is a cross-sectional plan view of the on-off valve in a fully open state.

FIG. 10 is a side view showing a single lever type mixing tap according to a second embodiment with a part cut away.

FIG. 11 is a perspective view showing a relationship between an impact surface and a stopper plate.

FIG. 12 is a perspective view showing a relationship between a stop surface and a stopper plate in a state in which regulation is released.

FIG. 13 is a perspective view showing the relationship between the stop surface and the stopper plate in a state where the restriction is released and the lever is lowered.

FIG. 14 is a side view of the single-lever mixer tap according to the third embodiment, partially cut away.

FIG. 15 is a partially cutaway side view showing a stopper mechanism portion of the mixing tap with the restriction released and the lever lowered.

FIG. 16 is a side view showing a partially cutaway single-lever type faucet of a fourth embodiment.

FIG. 17 is a partially cutaway side view showing a stopper mechanism portion of the mixer tap with the restriction released and the lever lowered.

[Explanation of symbols]

 2: Single lever 50, 150, 250, 350: Stopper mechanism P0: Valve closing position P1: Restricted position P2: Fully open position S1: Normal water discharge range S2: Large amount of water discharge range

Claims (1)

(57) [Scope of request for utility model registration] 1. A single lever type water faucet in which the amount of water discharged is adjusted by a vertical rotation operation of a single lever, wherein a rotation range of the single lever is defined as a normal water discharge range from a valve closing position to a restriction position, and Stopper machine that divides the large water discharge range from the position to the fully open position and regulates the transition of the single lever from the normal water discharge range to the large water discharge range
And the stopper mechanism is a lever
Regulation that operates to release the regulation of the stopper mechanism
Release operation means and return from the large water discharge range to the normal water discharge range
The stopper mechanism is released from the restriction release state by the rotation of the bar.
A single lever type faucet, comprising a regulation return means for automatically returning to a regulation state .