JPH08246521A - Fitting structure of faucet and washer - Google Patents

Abstract

PURPOSE: To improve durability of a faucet by preventing a washer from falling in the case of fitting the faucet, having superior workability, preventing the faucet from rotating even if applying rotational force on the faucet, and eliminating any stress applied on a supply pipe for supplying cold/hot water. CONSTITUTION: A screw shaft 52 and a projecting part 54 on the bottom of a hot/cold water mix faucet 40 are inserted into a faucet installation hole 12 of a counter 10 and a nut 66 is fastened via the washer 62. Both tapered faces 68, 70 are engaged with each other so that the washer 62 is pressed against the projecting part 54 and at the same time the faucet 40 is fixed to the counter 10. A haired body of an elastic body 72 provided in the inside face of the washer 62 abuts on the screw shaft 52.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure in which a water faucet is fixedly attached to a counter and a washer therefor. More specifically, the water faucet is firmly attached and the washer does not hit the supply pipe. The present invention relates to a water faucet mounting structure and a washer that have good performance. More specifically, the present invention relates to a mounting structure suitable for a one-hole type faucet and a washer therefor.

[0002]

2. Description of the Related Art In a single lever hot and cold water mixing faucet for a sink or the like, a counter has one faucet installation hole (one hole) into which the lower end of the faucet is inserted. A faucet is fixedly attached by tightening a nut through a washer (for example, Japanese Patent Laid-Open No. 6-200546).

A conventional example of such a one-hole type faucet mounting structure will be described with reference to FIGS.

A faucet installation hole 12 is bored in a counter 10 and a single lever hot and cold water mixing faucet 14 is attached. This single lever hot and cold water mixing faucet 14 includes a faucet body 16 having a built-in water channel mechanism, a rotary cylinder 18 externally fitted to the faucet body 16, and a water discharge pipe 20 extending obliquely forward from the rotary cylinder 18. A lever handle (not shown) provided on the top of the faucet is provided.

A water supply pipe 22, a hot water supply pipe 24 and a screw shaft 26 project from the bottom surface of the faucet body 16 and are inserted into the faucet installation hole 12. The screw shaft 2 is inserted into the screw shaft insertion hole 30 of the U-shaped (horseshoe-shaped) washer 28.
The hot and cold water mixing faucet 14 is fixed to the counter 10 by inserting 6 and screwing the nut 32 into the screw shaft 26.

Water supply hose 2 for supply pipes 22 and 24
4, hot water supply hoses 36 are respectively connected. In addition,
Instead of connecting the hoses 34 and 36, the supply pipe 2
In some cases, 2, 24 are made of long copper pipes and directly connected to a water supply pipe or a hot water supply pipe (or a water stopcock, etc.).

As is well known, the hot and cold water mixing faucet 14 is
The water discharge amount and the water discharge temperature can be adjusted by operating the lever handle of the book. Further, the water discharge pipe 20 can be freely rotated to the left and right. Since the water faucet is difficult to use if the water discharge pipe 20 has rotated 360 °, a stopper for restricting the turning range of the water discharge pipe 20 may be provided on the water faucet body.

[0008]

This hot and cold water mixing faucet 14
The washer 28 to attach the counter to the counter shaft 10.
When inserting into No. 6, it was necessary to hold the washer 28 by hand until the nut 32 was screwed sufficiently upward, and the construction work was troublesome.

It is an object of the present invention to provide a water faucet mounting structure and a washer which can save the labor of holding such a washer by hand.

By the way, in the faucet provided with the stopper for restricting the rotation range of the water discharge pipe as described above, torque is applied to the water faucet body every time the water discharge pipe hits the stopper, and the faucet body is It may rotate slightly and the supply pipe may hit the washer. When the supply pipe hits the washer in this way, the supply pipe may be damaged for a long time such as stress corrosion.

Another object of the present invention is to provide a faucet mounting structure in which a washer is reliably prevented from hitting a supply pipe.

[0012]

According to a first aspect of the present invention, there is provided a faucet mounting structure in which a faucet having a screw shaft for fixing the faucet projecting from a bottom surface of a faucet body is mounted on a counter. ,
The screw shaft is inserted into a faucet installation hole provided in the counter, the bottom surface of the faucet body is seated on the upper surface around the faucet installation hole, and a washer having a screw shaft insertion hole is The screw shaft is inserted through the screw shaft insertion hole and is arranged below the counter, and the washer is pressed against the edge of the faucet installation hole on the lower surface of the counter by a nut tightened on the screw shaft. In the water faucet mounting structure, an elastic body that elastically abuts the screw shaft is provided on the inner surface of the washer.

According to a second aspect of the present invention, there is provided a water faucet mounting structure according to the first aspect, wherein a convex portion for supporting the side face of the washer is projected downward from the bottom face of the main body of the faucet. The inner surface is a female taper surface that expands downward, and the upper end of the nut is provided with a male taper surface that engages with the female taper surface and decreases in diameter upward. The male taper surface is pressed against the female taper surface by tightening the nut, thereby biasing the washer laterally, and the side surface of the washer is pressed against the side surface of the convex portion. The elastic body is arranged on the opposite side of the convex portion with the screw shaft interposed therebetween.

According to a third aspect of the present invention, there is provided a washer according to claim 3, wherein the washer has a screw shaft insertion hole, and the shape of the washer is substantially U-shaped when projected onto a plane perpendicular to the axial center of the screw shaft insertion hole. It is characterized in that an elastic body that elastically abuts the formed screw shaft is provided.

According to a fourth aspect of the present invention, the washer according to the third aspect is characterized in that the elastic body comprises a large number of whiskers extending in a direction substantially perpendicular to the axis of the screw shaft insertion hole. .

[0016]

In the water faucet mounting structure of the present invention, when the screw shaft insertion hole of the washer is inserted through the screw shaft, the elastic body contacts the screw shaft, so that the washer does not drop even if the hand is released from the washer.

In the water faucet mounting structure according to the second aspect of the present invention, the washer is pressed against the convex portion to prevent the water faucet body from rotating. Therefore, in the single lever hot and cold water mixing faucet with the stopper for controlling the range of rotation of the water discharge pipe, even if the water discharge pipe hits the stopper and torque is applied to the water faucet body, the water faucet body does not rotate.

Further, in the water faucet mounting structure according to the present invention, when the screw shaft insertion hole of the washer is inserted into the screw shaft, the elastic body comes into contact with the screw shaft and the washer is separated from the convex portion as a whole. Shift in the direction. As a result, when the washer is pushed up, the washer can be prevented from hitting the convex portion, and the washer can be easily attached to the screw shaft.

The washer of claim 3 is used in the mounting structure of the faucet of claims 1 and 2.

In the washer of the fourth aspect, the tip of the whisker-like body hits the outer surface of the screw shaft like a brush, so that the washer is reliably prevented from falling.

[0021]

Embodiments will be described below with reference to the drawings. FIG. 1 is an exploded view showing a mounting structure of a faucet according to an embodiment of the present invention, FIG. 2 is a side view showing a state in the middle of mounting the faucet, FIG. 3 is a bottom view of FIG. FIG. 5 is a cross-sectional view showing a water faucet mounting structure, FIG. 5 is a cross-sectional view taken along line VV of FIG. 4, and FIGS. 6 and 7 are perspective views of washers.

A hot and cold water mixing faucet 40 is attached to the faucet installation hole 12 of the counter 10. This hot and cold water mixing tap 4
Reference numeral 0 denotes a faucet body 42 having a built-in water channel mechanism, a mixing valve device 44 provided on the upper part of the faucet body 42, a lever handle 46 for operating the mixing valve device 44, and the faucet body 4
2, a rotary cylinder 48 rotatably fitted on the outer peripheral surface, a water discharge pipe 50 extending forward and obliquely upward from the rotary cylinder 48, a screw shaft 52 protruding downward from the bottom surface of the faucet body 42, and a protrusion. The portion 54 is provided with a water supply supply pipe 60 and a hot water supply supply pipe (not shown) connected to the water supply port 56 and the hot water supply port 58 (see FIG. 3) provided on the convex portion 54.

The convex portion 54 is provided integrally with the faucet body 42, and the screw shaft 52 is fixed to the faucet body 42 by screwing. The screw shaft 52 and the convex portion 54 are inserted into the faucet installation hole 12 and extend below the counter 10. A screw shaft insertion hole 64 of the washer 62 is attached to the screw shaft 52.
Is inserted and the nut 66 is tightened, so that the hot and cold water mixing faucet 40 is fixed to the counter 10.

The inner peripheral surface of the screw shaft insertion hole 64 is a female taper surface 68 whose diameter is expanded downward. The upper end surface of the nut 66 is provided with a male taper surface 70 that engages with the female taper surface 68 and has a diameter that decreases upward. In this embodiment, the nut 66 has a vertically symmetrical shape, and the male taper surface 70 is also provided on the lower end surface so that the nut 66 can be used in any of the upper and lower directions.

As shown in FIG. 6, the washer 62 has a substantially U-shaped plan view, and has a first arm portion 74 and a second arm portion 74 which extend forward from the periphery of the screw shaft insertion hole 64.
The arm portion 76 is provided. These first and second arm portions 74, 7
6 is arranged so as to hold the convex portion 54, as shown in FIGS. The convex portion 54 is provided with a first side surface 54a and a second side surface 54b facing the first arm inner surface 74a and the second arm inner surface 76a, which are the inner surfaces of the arm portions 74 and 76, respectively.

As shown in FIG. 7, the washer 62 is formed by a press or the like so that the upper surface of the washer is depressed like a container, near the screw shaft insertion hole 64 and in the arms 74 and 7.
An elastic body 72 is provided on the inner wall surface of the container on the side opposite to 6.

The elastic body 72 has a structure like a brush having a base portion 72a and a large number of whiskers 72b protruding from the base portion 72a. This whiskers 7
The tip of 2b is inserted into the upward extension region of the screw shaft insertion hole 64, and the screw shaft 5 inserted into the screw shaft insertion hole 64 is inserted.
It is configured so as to be able to elastically contact the outer peripheral surface of 2.

Although the elastic body 70 is fixed to the washer 62 by adhesion, it may be fixed by a method other than adhesion.

As shown in FIG. 2, when the screw shaft insertion hole 64 of the washer 62 is inserted into the screw shaft 52, the whiskers 72b are formed.
Enters the screw groove of the screw shaft 52, and the washer 62 will not fall even if the hand is released from the washer 62. Further, the washer 62 is pushed in the direction away from the convex portion 54 by the elastic restoring force of the whiskers 72b, whereby the arm inner surfaces 74a, 76a are pushed.
There is a slight gap between the side surface of the convex portion 54a and the side surface of the convex portion 54b. As a result, when the washer 62 is raised along the screw shaft 52, the washer 62 is less likely to hit the convex portion 54, and the washer 62 is easily raised. At this time, the center of the screw shaft insertion hole 64 is slightly shifted to the right side in FIG. 3 from the center of the screw shaft 52.

After raising the washer 62 until it abuts on the counter 10, a nut 66 is screwed onto the screw shaft 52, the male taper surface 70 is abutted on the female taper surface 68, and the nut 66 is lightly tightened. When it is inserted, the washer 62 is urged to the left in FIG. 3 by the engagement of the tapered surfaces 68, 70,
The arm inner surfaces 74a and 76a abut the convex side surfaces 54a and 54b. Then, when the nut 66 is further tightened, the washer 62 is strongly pressed against the lower surface of the counter 10, and the arm inner surfaces 74a and 76a are protruded side surfaces 54a and 54b.
Then, the hot and cold water mixing faucet 40 is fixed to the counter 10.

In this fixedly mounted state (see FIGS. 4 and 5), the bottom surface of the faucet body 42 and the washer 62 strongly clamp the counter 10, and the arm inner surfaces 74a and 76a are convex side surfaces 54a and 54b. Since it is strongly pressed against, the faucet 40 does not rotate at all even when a rotational force is applied to the hot and cold water mixing faucet 40. That is, even if the hot and cold water mixing faucet 40 has a stopper for restricting the rotation range of the water discharge pipe 50, depending on the torque when the water discharge pipe 50 contacts the stopper, the water faucet 40 is stopped. Does not rotate. In particular, in this embodiment, the washer 62 is provided with a serrated portion on the upper surface, and the serrated portion is embedded in the lower surface of the counter 10, so that the washer 62 is securely locked to the counter 10 and The rotation of the stopper 40 is reliably prevented.

In addition, in this embodiment, the water supply supply pipe 60 and the hot water supply supply pipe are joined to the lower end surface of the convex portion 54, and a rotation torque is applied to the faucet 40. However, no stress is applied to the supply pipe. As a result, no adverse effects such as stress corrosion of the supply pipe occur.

[0033]

As described above, according to the water faucet mounting structure and the washer of the present invention, the washer does not drop even when the hand is removed from the washer when the water faucet is attached, and the workability is improved.

According to the structure of claim 2, even if the faucet has a stopper for restricting the rotation range of the discharge pipe, the faucet can be firmly fixed to the counter. it can.

The washer of claim 4 is provided with a large number of whiskers, and can be very reliably locked to the screw shaft.

[Brief description of drawings]

FIG. 1 is an exploded view showing a structure of an embodiment.

FIG. 2 is an intermediate view of a faucet installation explaining the structure of the embodiment.

FIG. 3 is a view taken along line III-III in FIG. 2;

FIG. 4 is a cross-sectional view showing a mounting structure according to an embodiment.

FIG. 5 is a sectional view taken along line VV in FIG. 4;

FIG. 6 is a perspective view of the washer from below.

FIG. 7 is a perspective view of the washer from above.

FIG. 8 is a perspective view showing a conventional example.

FIG. 9 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

 10 Counter 12 Faucet installation hole 14,40 Hot and cold water mixing faucet 16,42 Faucet body 20,50 Water discharge pipe 26,52 Screw shaft 28,62 Washer 30,64 Screw shaft insertion hole 32,66 Nut 68 Female taper surface 70 Male Tapered Surface 72 Elastic Body 72b Whiskers

Claims (4)

[Claims] 1. A structure in which a faucet having a screw shaft for fixing the faucet projecting from the bottom surface of the faucet body is attached to a counter, and the screw shaft is provided in a faucet installation hole provided in the counter. Is inserted, the bottom surface of the faucet body is seated on the upper surface around the faucet installation hole, and a washer having a screw shaft insertion hole inserts the screw shaft into the screw shaft insertion hole to insert the screw shaft into the counter. In the mounting structure of the faucet, wherein the washer is pressed against the edge of the faucet installation hole on the lower surface of the counter by a nut that is arranged on the lower side of the washer, the inner surface of the washer is A water faucet mounting structure comprising an elastic body elastically contacting a screw shaft. 2. The washer main body according to claim 1, wherein a convex portion for supporting the side face of the washer is projected downward from the bottom face of the faucet body, and the inner surface of the screw shaft insertion hole of the washer is expanded downward. A female taper surface is provided, and a male taper surface which is engaged with the female taper surface and which is reduced in diameter upward is provided at the upper end of the nut. The male taper surface is pressed against the female taper surface, whereby the washer is biased laterally, and the side surface of the washer is pressed against the side surface of the convex portion, and the elastic body has the screw shaft. A faucet mounting structure, wherein the faucet mounting structure is disposed on the opposite side of the convex portion with the pinch interposed therebetween. 3. A washer having a screw shaft insertion hole and having a substantially U-shaped shape projected onto a plane perpendicular to the axis of the screw shaft insertion hole, the screw shaft being inserted into the screw shaft insertion hole. A washer provided with an elastic body that elastically abuts against the washer. 4. The washer according to claim 3, wherein the elastic body is composed of a large number of whiskers extending in a direction substantially perpendicular to the axial center of the screw shaft insertion hole.