JP3315342B2 - Installation structure of faucet equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for mounting a faucet device on an upper surface of a mounting member such as a counter, and more particularly, to a mounting structure using a fixture for holding the mounting member from the lower surface side.

[0002]

2. Description of the Related Art As a mounting structure for mounting a faucet device on an upper surface of a mounting member such as a counter (hereinafter referred to as an example of a counter), a mounting structure as shown in FIG. 15 is conventionally used. In the figure, 300 is the faucet body 30
2 and water pipe 304 extending therefrom, operating lever 3
It is a faucet device provided with 06. A male screw tube 308 extends downward from the faucet device 300, and the male screw tube 308 is attached to the mounting hole 3 formed in the counter 310.
12 penetrates downward.

[0003] A fixing nut 314 is screwed into the male screw tube 308 from the lower surface side of the counter 310 with respect to the male screw tube 308 protruding from the lower surface side of the counter 310, and the faucet device 300 and the faucet device 300 are connected based on the screwing force. The faucet device 300 is mounted on the counter 310 with the fixing nut 314 sandwiching the counter 310 from both upper and lower sides.

[0004] In addition, reference numeral 316 denotes water,
A supply pipe for supplying hot water or the like. The supply pipe 316 is inserted through the inside of the male screw pipe 308 and the upper end thereof is connected to the faucet main body 302.
It is connected to the.

However, in the case of this mounting structure, when the faucet device 300 is mounted, the supply pipe 316 and the like are connected to the male screw pipe 3.
08, and when the nut 314 is screwed into the male screw pipe 308, the supply pipe 316 and the like must be inserted inside the nut 314, especially when the supply pipe 316 is long. The distal end of the feed tube 316 or the like must be passed through the inside of the nut 314 and the nut 314 must be brought to the position of the externally threaded tube 308, which is cumbersome and therefore requires the faucet 300 There is a problem that it takes time and labor to install the horn.

Therefore, as one means for solving this problem,
A mounting structure as shown in FIG. 16 has been proposed. This mounting structure includes a fixing member 31 having a substantially horseshoe shape as a fixing device for attaching the faucet device 300 to the counter 310 or the like.
8 is used. Here, a substantially horseshoe-shaped fixing bracket 31
8, a notch 320 is formed at a predetermined position in the circumferential direction of the ring-shaped member, an insertion hole 322 is formed inside, and the supply pipe 31 is formed.
Reference numeral 6 and the like allow the insertion hole 322 to be inserted.

In this mounting structure, the faucet device 300
A bolt 324 as a fastening shaft is extended downward from the side, and the bolt 324 penetrates a through hole 325 formed at a position eccentric from the center of the fixing bracket 318 and protrudes to the lower surface side of the fixing bracket 318. The nut 326 is screwed in from the end of the protruding bolt 324, and the faucet device 300 and the fixing metal fitting 318 clamp the counter 310 from both upper and lower surfaces, and fix the faucet device 300 to the counter 310. It is designed to be attached.

In the case of this mounting structure, the supply pipe 316 and the like can be inserted into the insertion hole 322 through the cutout portion 320 of the fixing bracket 318, and therefore, there is an advantage that the installation of the faucet device 300 is facilitated. can get.

[0009]

However, in the case of this mounting structure, as shown in FIG. 17, a substantially horseshoe-shaped fixing bracket 318 is freely rotated around a bolt 324 located at an eccentric position, so that the mounting hole is not provided. There is a problem that the fixing bracket 318 may be deviated from an appropriate position around the periphery of the counter 312, and it is troublesome to correctly position the fixing bracket 318 on the lower surface of the counter 310 around the mounting hole 312. In this case, the fixing strength of the faucet device 300 may be weakened and rattling may occur.

Although the above description has been made with reference to a substantially horseshoe-shaped fixing bracket as an example, the problem is that the mounting member is clamped together with the faucet device by a fixing member arranged on the lower surface side of the mounting member such as a counter, and the eccentric position of the fixing member. The fastening shaft is extended downward from the faucet device so as to penetrate the through hole formed in the water supply device, and the faucet device and the fixing device are sandwiched by the fastening shaft and the fastener so that the mounting member is sandwiched therebetween. This is a problem that can generally occur when attaching a plug device.

[0011]

The invention of the present application has been made to solve such a problem. The mounting structure for a water faucet device according to the first aspect is a mounting structure for mounting the water faucet device on an upper surface of a mounting member such as a counter, and (a) the mounting member is eccentric from the center of the mounting hole. (B) a through-hole that penetrates the fastening shaft at an eccentric position corresponding to the position of the fastening shaft; A fixture disposed on the lower surface to clamp the mounting member together with the faucet device from both upper and lower surfaces to fix the faucet device to the mounting member; Applying an upward tightening force to the fixing tool in a state where the faucet device and the fixing tool sandwich the mounting member from both upper and lower surfaces,
In the mounting structure of a faucet device having the fastening shaft and a fastening tool separately or integrally formed, at least a part of the inner surface of the through hole in the circumferential direction is a non-arc-shaped first engagement surface. At least a part of the outer surface of the fastening shaft corresponding to the outer surface is a non-arc-shaped first engaged surface that engages with the first engaging surface to position the fixing tool in the rotational direction. It is characterized by having done.

According to a second aspect of the present invention, in the first aspect of the present invention, the fixing tool has a form in which a part of a circumferential direction of a ring-shaped member is cut inward and outward, and an insertion hole is formed inside. Characterized in that it is a substantially horseshoe-shaped member as a whole.

According to a third aspect of the present invention, there is provided the faucet mounting structure according to any one of the first and second aspects, wherein the fastening shaft is a bolt,
The fastener is a nut.

According to a fourth aspect of the present invention, there is provided the faucet mounting structure according to the third aspect, wherein the first engaged surface is formed by partially cutting off the outer peripheral thread portion of the bolt. Features.

According to a fifth aspect of the present invention, there is provided the faucet mounting structure according to the fourth aspect, wherein the first engaged surface is formed continuously in the axial direction until reaching the lower end of the fastening shaft. And

According to a sixth aspect of the present invention, there is provided the faucet mounting structure according to any one of the third, fourth, and fifth aspects, wherein an upper portion of the fastening shaft made of the bolt passes through a through hole formed in a bottom portion of the faucet. The upper part of the fastening shaft is screwed with a nut that is separate from the bottom , so that the fastening shaft is fixed to the faucet device and the inner surface of the through hole is At least a part in the circumferential direction is a non-arc-shaped second engagement surface,
In addition, at least a part of the portion of the fastening shaft located in the through hole in the circumferential direction is engaged with the second engagement surface to form a non-arc-shaped second cover for positioning the fastening shaft in the rotational direction. It is characterized in that it is an engagement surface.

According to a seventh aspect of the present invention, in the sixth aspect of the present invention, the fastening shaft is formed so that both the nut and the nut protrude in a direction perpendicular to the axis for sandwiching the bottom of the faucet from both upper and lower surfaces. Is provided.

According to an eighth aspect of the present invention, in the mounting structure of the faucet device according to the seventh aspect, the upper surface of the holding portion is formed as an inclined surface approaching the center of the fastening shaft as it goes upward. Is formed as the flat second engaged surface, and the second engaging surface having a correspondingly inclined and flat surface is formed on the inner surface of the through hole at the bottom. I do.

[0019]

As described above, in the mounting structure according to the first aspect, at least a part of the inner surface of the through hole in the fixing tool in the circumferential direction is a non-arc-shaped first engaging surface, while the fixing shaft corresponds to the fixing shaft. A part of the outer surface in the circumferential direction is formed as a non-arc-shaped first engaged surface that engages with the first engagement surface to position the fixture in the rotational direction. According to this, based on the positioning operation based on the engagement between the first engagement surface and the first engaged surface, the position of the fixing tool in the rotational direction with respect to the fastening shaft can be defined at a predetermined position. .

Therefore, according to this mounting structure, the fastener can be automatically fastened only by making the fastening shaft penetrate the through hole without performing a complicated positioning operation of the fastener around the fastening shaft. Since the position around the axis can be positioned at the appropriate position, the work of mounting the faucet device can be easily performed, and since the fixing device is located at the proper position, the mounting strength of the faucet device is sufficiently strong. I can do it. Here, in the present invention, the first engagement surface and the first engaged surface can have a flat surface shape.

The present invention also relates to a mounting structure using a fixture having a substantially horseshoe shape as a whole, in which a part of the ring-shaped member in the circumferential direction is cut inward and outward, and has an insertion hole inside. The effect is particularly large when applied (claim 2). When such a substantially horseshoe-shaped fixing tool is used, when the fixing tool rotates around the fastening axis and comes out of the mounting hole, the fixing force is sharply reduced. Can be eliminated.

In the present invention, the fastening shaft may be constituted by a bolt, and the fastener may be constituted by a nut. In such a case, the faucet device can be easily mounted simply by screwing the nut into the bolt as the fastening shaft.

In the present invention, the first engaged surface can be formed in a form in which the external male thread portion of the fastening shaft made of the bolt is partially cut off flat. In this case, the first engaged surface can be easily formed with respect to the fastening shaft, and the nut is also screwed into the fastening shaft formed of the bolt at the portion where the first engaged surface is formed. Can be combined.

[0024] In this case, the first engaged surface on the fastening shaft side composed of the bolt can be formed continuously in the axial direction until reaching the lower end of the fastening shaft. In this case, the fastening shaft made of a bolt can be inserted downward from the lower end of the through hole of the fixture, and the rotation of the fastening shaft and the fixture can be made at any position reaching the lower end of the fastening shaft. The position in the direction can be determined by the engagement action between the first engagement surface and the first engaged surface.

When the fastening shaft is formed by bolts and the upper end thereof is screwed into the bottom of the faucet device, even if the position of the bending fixture and the fastening shaft in the rotational direction is restricted, the faucet is still required. The position of the fixture around the fastening axis is not determined, and as a result, the position of the fixture and the faucet device in the rotational direction is shifted, which causes a problem that the faucet device cannot be attached properly.

Here, in the mounting structure of claim 6, the upper part of the fastening shaft made of a bolt is made to protrude upward through a through hole formed in the bottom part of the faucet device, and the upper part of the fastening shaft is provided with a bottom part. While fixing the fastening shaft to the faucet device by screwing a nut forming a separate body, a second engagement surface formed on the inner surface of the through hole, and a second engagement surface formed on the outer surface of the fastening shaft located in the through hole. The two engaged surfaces are engaged with each other to determine the rotational position of the faucet device around the fastening axis. According to this mounting structure, even when the fastening shaft and the faucet device are fixed, The position around the fastening axis of the faucet device can be located at a predetermined appropriate position, and the fixing device and the faucet device can be located at a predetermined appropriate relative position via the fastening shaft. Can be. Thus, the faucet device can be attached to the attachment member with a strong fixing force in the attachment hole. In the mounting structure of the sixth aspect, the second engagement surface of the inner surface of the through hole and the corresponding second engaged surface of the fastening shaft can be formed in a flat surface shape.

[0027] In the mounting structure of the sixth aspect, a nut is screwed into a fastening shaft made of a bolt below the bottom, and the fastening shaft and the faucet are tightened by the nuts above and below the faucet appliance. According to a seventh aspect of the present invention, the fastening shaft is provided with a holding portion having a shape projecting in a direction perpendicular to the axis, and the nut is provided on the upper side of the bottom of the faucet device and the holding portion. Can be clamped from both upper and lower sides to fix the fastening shaft and the bottom of the faucet device. With this configuration, the fastening shaft and the bottom of the faucet device can be easily fixed by simply screwing the nut from above the bottom.

Further, in this case, the upper surface of the holding portion is
As it moves upward, it becomes an inclined surface approaching the shaft center side of the fastening shaft, and the inclined surface can be the flat second engaged surface. In addition, an inclined and flat second engaging surface having a form corresponding to the inner surface of the through hole can be formed (claim 8). In this case, the second engagement surface and the second engaged surface can be brought into close contact with a strong force by tightening the nut, and the fixing force between the fastening shaft and the faucet device bottom can be further improved. In addition to being able to be strengthened, it is possible to effectively strengthen the regulating force in the rotation direction.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. In FIG. 1, reference numeral 10 denotes a water discharge pipe (a faucet device) in an automatic faucet, and 12 denotes a main body in the automatic faucet. A solenoid valve and a control unit are built in the main body 12.

A mixing section 14 in the automatic faucet is connected to a water supply pipe 16 and a hot water supply pipe 17, and the water and hot water sent through these are mixed in the mixing section 14.
The mixing section 14 and the main body 12 are connected to each other via a connection pipe 18, and mixed water from the mixing section 14 is sent to the main body 12 through the connection pipe 18. The mixed water sent to the main body 12 is further sent to the water discharge pipe 10 through the supply pipe 20.

The water discharge pipe 10 has a water discharge port 22 at its tip.
And a sensing sensor 24 in the vicinity thereof,
Water is automatically discharged from the water outlet 22 based on the detection by the sensor 24 when the user's hand is put out.

Reference numeral 26 denotes a mounting member (referred to as a counter in this example) such as a counter, a basin, and the like, in which a mounting hole 28 is provided. It is installed in a state of standing up from.

FIGS. 2 and 3 show the mounting structure of the water discharge pipe 10. In this mounting structure, the water discharge pipe 10 is placed between the water discharge pipe 10 and the fixture 30 so that the counter 26 is sandwiched between the upper and lower surfaces. It is attached and fixed. Specifically, in this mounting structure, a bolt 32 as a fastening shaft extends downward from the water discharge pipe 10 through the mounting hole 28. The bolt 32 penetrates through the through hole 34 of the fixing bracket 30 and protrudes to the lower surface side of the fixing bracket 30, and a nut 36 as a fastener is screwed into the protruding portion. By the screwing force, the water discharge pipe 10 and the fixture 30 strongly sandwich the counter 26 from both upper and lower surfaces.

FIGS. 4 and 5 specifically show the structure of the fixing bracket 30. FIG. As shown in FIG. 4, the fixing bracket 30 has a substantially horseshoe shape in which a part of the circumferential direction of the ring-shaped member is cut away. That is, the fixture 30 has a notch 42 and an insertion hole 44 inside the notch 42, and the supply pipe 20 or the sensing sensor 24 and the control unit of the main body 12 are connected to the insertion hole 44. Can be inserted.

As shown in FIG. 5 (A), the fixing bracket 30 is located at a position eccentric from the center thereof, specifically, at a position eccentric by a predetermined dimension d away from the notch 42. A through hole 34 through which the bolt 32 passes is formed.

In this embodiment, the fixing bracket 30 has a laminated structure in which a lower metal member 46 and an upper elastic member 48 such as rubber are fixedly integrated, and has a trapezoidal cross section as a whole. . That is, as shown in FIGS. 2 and 3, the fixing bracket 30 is attached to the lower surface of the counter 26 and the mounting hole 28.
The outer peripheral portion abutting on the outer peripheral edge has a tapered surface shape such that it approaches the center side of the fixture 30 upward, that is, a convex tapered surface shape that gradually becomes smaller in diameter upward. ing.

The fixing bracket 30 is connected to the lower metal member 4.
6 also has a tapered shape, and the upper elastic member 48 entirely covers the surface of the lower metal member 46 with a predetermined thickness.

In this example, as shown in FIG. 5C, a pair of engaging surfaces (first engaging surfaces) 47 which are parallel to each other and have a flat surface shape are formed on the inner surface of the through hole 34. ing. As described in detail later, the engaging surface 47 is provided with an engaged surface (first engaged surface) 52 formed on the bolt 32 (FIG. 6).
(See FIG. 1) to perform a detent function.

As shown in FIG. 3B, the through hole 34 is formed between the through hole 34 A on the elastic member 48 side and the metal member 46.
Side through-hole 34B, and thus the metal member 4
The width dimension of the through-hole 34 </ b> B on the sixth side is set to a dimension that just fits into the bolt 32. On the other hand, the width of the through hole 34A on the elastic member 48 side is slightly smaller than the thickness of the bolt 32, and the frictional force based on the elastic contact of the elastic member 48 between the inner surface of the through hole 34A and the bolt 32. Is to be generated. Then, based on the elastic frictional force, the fixing bracket 30 is temporarily fixed to the bolt 32, that is, temporarily supported, as described later in detail.

The lower surface of the fixture 30 has a tapered hole 49 with a concave tapered shape and a shallow depth along the periphery of the through hole 34.
Are formed (FIG. 5C). This tapered hole 49
Is tapered such that the diameter gradually decreases upward, and the center position of the tapered surface 51 is
5, that is, the through hole 34 is eccentric in the same direction as the direction in which the through hole 34 is eccentric with respect to the center of the fixture 30.

FIG. 6 shows the structure of the bolt 32 specifically. As shown in the figure, the bolt 32 has a pair of holding portions 50 protruding in the direction perpendicular to the axis near the upper end.
Is provided. A pair of flat engaged surfaces (first engaged surfaces) 52 in which the external male thread portion is cut off from immediately below the holding portion 50 to the lower end of the bolt are formed parallel to each other.

The engaged surface 52 engages with the engaging surface 47 in the through hole 34 of the fixing bracket 30 to thereby secure the bolt 32
This serves to define the rotational position of the surrounding fixture 30.

As shown in FIGS. 7 and 8, a through-hole 56 is formed in the bottom 54 of the water discharge pipe 10.
Then, the bolt 32 penetrates through the through hole 56 and the bottom portion 54
, Into which a nut 58 is screwed. The bolt 32 and the bottom 54 of the water discharge pipe 10 are fixed so that the nut 58 and the projecting holding portion 50 of the bolt 32 sandwich the bottom 54 from both the upper and lower sides (see FIG. 2).

As shown in FIG. 6, the upper surface of the holding portion 50 of the bolt 32 faces upwards as shown in FIG.
It is a flat surface slope approaching the center side of the
This inclined surface is the engaged surface (second engaged surface) 60 for stopping rotation.
It has been. The engaged surface 60 having the flat surface shape and the inclined shape also functions as a holding surface for the water discharge pipe bottom 54.

On the other hand, as shown in FIG. 7C, the inner surface of the through hole 56 of the water discharge pipe bottom 54 is provided with the engaged surface 60.
An engagement surface (second engagement surface) 62 having an inclined shape corresponding to the above is formed. The engagement surface 62 is provided with the through hole 5 facing upward.
6 has an inclined surface having a flat surface shape so as to gradually narrow the opening width.

The rotational position of the water discharge pipe 10 around the bolt 32 is defined based on the engagement between the flat and inclined engaging surface 62 and the engaged surface 60 on the bolt 32 side. Also, when the nut 58 is tightened with respect to the bolt 32, the engagement surface 62 on the water discharge pipe bottom 54 side and the engaged surface 60 on the bolt 32 side are in a state of being strongly pressed, so that the bottom 54
Is firmly tightened and fixed from both upper and lower sides by the holding portion 50 and the nut 58. The engagement surface 62 and the engaged surface 60
And the water discharge pipe 10 is firmly stopped.

FIG. 9 shows the structure of the nut 36 in detail. As shown in the figure, the nut 36 has a cylindrical shape elongated in the axial direction, and has symmetrically tapered convex portions 64 on both upper and lower surfaces. The tapered surfaces 66 of the tapered projections 64 are tapered such that they approach the center of the nut 36 as they move upward and downward, respectively, that is, gradually become smaller in diameter. The tapered surface 66 of the tapered projection 64 is formed concentrically with the center of the nut 36.

The tapered projection 64 is fixed to the fixing bracket 30.
To apply a large tightening force to the end of the fixing bracket 30 on the side of the notch 42, that is, the free end, by fitting into the tapered hole 49 on the lower surface side of the nut. Only the part 64 works effectively.

That is, in the nut 36, the symmetrical tapered convex portions 64 are provided on the upper surface and the lower surface, respectively, so that the nut 36 can be used without selecting the vertical direction when screwing the nut 36 into the bolt 32. It was done.

FIGS. 10 to 14 show a procedure for mounting the water discharge pipe 10 in the mounting structure of this embodiment. The procedure for mounting the water discharge pipe 10 will be described below in detail with reference to FIG. In the mounting structure of this example, first, as shown in FIG. 10 (I), the upper part of the bolt 32 is screwed and fixed to the water discharge pipe bottom 54. Specifically, the bolt 3 is inserted through the through hole 56 of the water discharge pipe bottom 54.
2 The upper part is projected upward, and a nut 58 is screwed into the projected part to fix the bolt 32 and the water discharge pipe bottom 54.

At this time, the bolt 32
Surface 6 of the flat surface and the inclined surface of the upper surface of the holding portion 50
0 engages with the engaging surface 62 of the bottom portion 54 on the through hole 56 side,
The rotation direction position of the water discharge pipe 10 around the bolt 32 is defined. At the same time, based on the tightening of the nut 58, the engaged surface 60 of the holding portion 50 and the engaging surface 62 of the through hole 56 are in a state of being strongly pressed, and the bolt 32 and the water discharge pipe bottom 54 are axially That is, it is firmly fixed in the up-down direction and the rotation direction (FIG. 10 (II)).

In this state, the water discharge pipe 10 is set on the upper surface of the counter 26 as shown in FIG. 11, and the bolt 32 is projected downward through the mounting hole 28 of the counter 26. At this time, the supply pipe 20 having the upper end connected to the water discharge pipe 10 is extended downward through the mounting hole 28.

Next, the substantially horseshoe-shaped fixing bracket 30 is shown in FIG.
1 (III), and fitted to the bolt 32 according to the procedure of FIGS. 12 (IV) and (V). At this time, since the fixture 30 has the notch 42, the supply pipe 20 can be inserted into the insertion hole 44 of the fixture 30 through the notch 42.

When the fixture 30 is fitted to the bolt 32 in the through hole 34, the fixture 30 is formed based on the elastic frictional force between the inner surface of the through hole 34 A on the elastic member 48 side and the outer peripheral surface of the bolt 32. It is prevented from slipping off the bolt 32. Therefore, when the nut 36 is screwed into the bolt 32 from below the fixing bracket 30 thereafter, the fixing bracket 30 does not have to be supported by the hand, and the screwing operation of the nut 36 can be easily performed. . Alternatively, the fixing bracket 30 slips off the nut 36,
In some cases, it can be reliably prevented from being lost.

When the nut 36 screwed into the bolt 32 is further tightened, the fixing bracket 30 contacts the lower surface of the counter 26 and sandwiches it from below, where the water discharge pipe 10 is fixed to the counter 26. State. At that time, as shown in FIG.
Since the shape of the outer peripheral portion of the counter 26 that abuts on the peripheral edge of the mounting hole 28 is tapered, the centripetal action by the tapered surface works, and the fixture 30 automatically correctly fits the mounting hole 28. Be aligned. That is, the fixture 30 is centered so that the center of the fixture 30 and the center of the mounting hole 28 match.

At this time, the fixing bracket 30 and the bolt 32
Is a state in which the engaging surface 47 of the inner surface of the through hole 34 of the fixing bracket 30 and the flat surface-shaped engaged surface 52 of the bolt 32 are engaged, and the rotational position of the fixing bracket 30 around the bolt 32 is changed. The state is defined at a predetermined position. That is, the position of the water discharge pipe 10 and the fixing fitting 30 is restricted in the rotation direction around the bolt 32, and the bolt 32
The fixing bracket 30 and the water discharge pipe 10 are accurately positioned at a predetermined relative relationship position via.

Therefore, according to this example, the nut 36 is simply
By simply screwing into the bolt 32 from below the fixing bracket 30, the water discharge pipe 10 and the fixing bracket 30 are fixed to the counter 26 at an appropriate position set with respect to the mounting hole 28.

In the mounting structure of this embodiment, as shown in FIG. 13, when the nut 36 is screwed into the bolt 32, the tapered convex portion 64 on the upper surface of the nut 36 becomes the tapered hole portion 49 on the lower surface side of the fixture 30. Fit inside. At this time, the tapered convex portion 64 on the nut 36 side is formed concentrically with the axis of the nut 36, while the tapered hole portion 49 on the fixture 30 side.
Is formed at an eccentric position with respect to the center of the through hole 34, so that the tightening force of the nut 36 is located at the free end side of the fixture 30, that is, at the side far from the bolt 32.
It is strongly applied to the two ends.

More specifically, when the nut 36 is screwed into the bolt 32, the tapered projection 64 of the nut 36 changes from the state of FIG. 13 (VI) to the state of FIG. 13 (VII). First, the tapered surface on the left side of the tapered convex portion 64 in the drawing, that is, the tapered surface 6 on the free end portion side on the notch portion 42 side.
6 comes into contact with the tapered surface 51 of the tapered hole 49 first. Therefore, if the nut 36 is screwed upward in this state,
As shown in (VIII), the free end side of the fixture 30, that is, the end side on the left side in the figure, is in a state of being slightly lifted.
This is because the tightening force of the nut 36 acts strongly on the same end.

When the nut 36 is further tightened from this state, the fixing bracket 30 finally reaches the state shown in FIG. The fastening force is applied, and as a result, the fixing bracket 30 is pressed against the lower surface of the counter 26 as a whole with a uniform force.

Therefore, according to the mounting structure of this embodiment, the fixing bracket 30 is entirely formed despite the fastening force of the nut 36 acting on the fixing bracket 30 at a position eccentric from the center thereof. It is pressed against the counter 26 with an even force over it and is fixed. For this reason, according to the mounting structure of this example, the water discharge pipe 10 can be firmly fixed to the counter 26 without rattling.

As described above, in the mounting structure of this embodiment, the engaging surface 47 is formed on the inner surface of the through hole 34 of the fixing member 30, and the fixing member is engaged with the engaging surface 47 on the outer surface of the bolt 32. The engagement surface 52 for positioning in the rotation direction of 30 is formed. According to this mounting structure, based on the positioning operation based on the engagement operation between the engagement surface 47 and the engagement surface 52, The position of the fixing bracket 30 in the rotation direction with respect to the bolt 32 can be defined at a predetermined position.

Therefore, according to this mounting structure, the bolt 32
Even if the troublesome positioning work of the surrounding fixing metal 30 is not performed, the position of the fixing metal 30 around the bolt 32 is automatically positioned at an appropriate position only by making the bolt 32 penetrate the through hole 34. Therefore, the mounting operation of the water discharge pipe 10 can be performed easily, and the mounting strength of the water discharge pipe 10 can be made sufficiently strong because the fixing bracket 30 is located at an appropriate position.

In this embodiment, the bolt 32 forming the fastening shaft
The engaged surface 52 is formed in such a manner that the outer peripheral thread portion of the bolt 32 is partially cut off flat.
The nut 36 can be screwed into the bolt 32 at the portion where the engaged surface 52 is formed.

Since the engaged surface 52 is formed continuously in the axial direction until it reaches the lower end of the bolt 32, the bolt 32
Can be inserted downward from the lower end into the through hole 34 of the fixture 30, and the position of the bolt 32 and the fixture 30 in the rotational direction can be engaged at any position reaching the lower end of the bolt 32. Positioning can be performed by the engagement between the surface 47 and the engaged surface 52.

Further, in this embodiment, the upper part of the bolt 32 penetrates through the through hole 56 of the bottom 54 of the water discharge pipe 10 and protrudes upward, and a nut 58 is screwed onto the protruded upper part to thereby connect the bolt 32 and the water discharge pipe. 10 and the engaging surface 62 formed on the inner surface of the through hole 56 and the engaged surface 60 on the outer surface of the bolt 32 are engaged to position the bolt 32 in the rotation direction. When fixing the water pipe 10, the position around the bolt 32 of the water discharge pipe 10 can be positioned at a predetermined appropriate position, and the fixing fitting 30 and the water discharge pipe 10 are set in advance through the bolt 32. It can be located at an appropriate relative relationship position. Thereby, the water discharge pipe 10 can be attached to the counter 26 in the attachment hole 28 with a strong fixing force.

Further, in this embodiment, the bolt 32 is provided with a holding portion 50 which projects in the direction perpendicular to the axis, and the bottom portion 5 of the water discharge pipe 10 is provided.
4 The bottom portion 5 is formed by the upper nut 58 and the holding portion 50 thereof.
4 is sandwiched from both upper and lower sides.
By simply screwing the nut 58 from the upper side of the bolt 4, the bolt 32 and the bottom 54 of the water discharge pipe 10 can be easily fixed.

Further, in this case, an inclined surface which approaches the center of the bolt 32 as it goes upward on the upper surface of the holding portion 50 is formed, and the inclined surface is the flat engaged surface 6.
It can be zero. In addition, an inclined and flat engaging surface 62 corresponding to the inner surface of the through hole 56.
Can be formed in advance. In this case, the engagement surface 62 and the engaged surface 60 are tightened by tightening the nut 58.
Can be brought into close contact with a strong force, and the fixing force between the bolt 32 and the water discharge pipe bottom 54 can be further increased.
The regulating force in the rotation direction can be effectively increased.

Although the embodiment of the present invention has been described in detail, this is merely an example. For example, the present invention can be applied to mounting a faucet device having a mixing section of hot and cold water, a water discharge pipe, an operation handle and the like on a counter or other mounting member, and various modifications are made without departing from the gist of the invention. It can be configured in different forms.

[Brief description of the drawings]

FIG. 1 is a diagram showing an entire configuration of an automatic faucet including a spout as a faucet device to which the present invention is applied.

FIG. 2 is a diagram showing a water discharge pipe mounting structure of FIG. 1 according to an embodiment of the present invention in a water discharge pipe mounted state.

FIG. 3 is an exploded view of the mounting structure of FIG.

FIG. 4 is a diagram showing a configuration of a fixing bracket in FIGS. 2 and 3;

FIG. 5 is a view showing a main part of the fixing bracket of FIG. 4;

FIG. 6 is a view showing a configuration of a fastening bolt in FIGS. 2 and 3;

FIG. 7 is a view showing the structure of the bottom of the water discharge pipe of FIGS. 1 to 3;

8 is an exploded view showing a fixing structure of the bottom of the water discharge pipe and the bolt in FIG.

FIG. 9 is a view showing a configuration of a nut in FIGS. 2 and 3;

FIG. 10 is an explanatory view showing a part of a mounting procedure of the embodiment.

FIG. 11 is an explanatory diagram of a partial step following FIG. 10;

FIG. 12 is an explanatory diagram of a partial step following FIG. 11;

FIG. 13 is an explanatory view illustrating the operation of the tapered projection of the nut of FIG. 9 and the tapered hole of the fixing bracket of FIG. 5;

FIG. 14 is an enlarged sectional view of a main part in a final mounted state following FIG. 12;

FIG. 15 is a view showing an example of a conventional mounting structure for a faucet device.

FIG. 16 is a view showing an example different from FIG. 15 of the conventional faucet mounting structure.

FIG. 17 is an explanatory view of a defect in the mounting structure of FIG. 16;

[Explanation of symbols]

 Reference Signs List 10 water discharge pipe (faucet device) 26 counter (mounting member) 28 mounting hole 30 fixing bracket 32 bolt (fastening shaft) 34 through hole 36 nut (fastening tool) 42 notch 47 engaging surface (first engaging surface) 49 Tapered hole portion 50 Nipping portion 52 Engaged surface (first engaged surface) 54 Bottom portion 56 Through hole 58 Nut 60 Engaged surface (second engaged surface) 62 Engagement surface (second engagement surface) )

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E03C 1/042

Claims (8)

(57) [Claims] 1. A mounting structure for mounting a water faucet device on an upper surface of a mounting member such as a counter, wherein (a) the mounting hole is located at a position eccentric from the center of the mounting hole of the mounting member. A fastening shaft extending downward through
(B) a through hole for passing through the fastening shaft at an eccentric position corresponding to the position of the fastening shaft, disposed on the lower surface of the mounting member, and holding the mounting member together with the faucet device from both upper and lower surfaces; A fixture for fixing the faucet device to the mounting member at,
(C) located on the lower surface side of the fixing tool, and applies an upward tightening force to the fixing tool in a state where the faucet device and the fixing tool sandwich the mounting member from both upper and lower surfaces. In a mounting structure of a faucet device having a fastening shaft and a fastener integrally or separately formed, at least a part of the inner surface of the through hole in a circumferential direction is a non-arc-shaped first engagement surface, At least a part of the circumferential surface of the corresponding outer surface of the fastening shaft is formed as a non-arc-shaped first engaged surface which engages with the first engaging surface to position the fixing tool in the rotational direction. A mounting structure for a faucet device. 2. The substantially horseshoe-shaped member according to claim 1, wherein the fixing member has a shape in which a part of a ring-shaped member in a circumferential direction is cut out inward and outward, and has an insertion hole inside. A structure for mounting a faucet device. 3. The faucet mounting structure according to claim 1, wherein the fastening shaft is a bolt, and the fastening tool is a nut. 4. The faucet mounting structure according to claim 3, wherein said first engaged surface is formed by partially cutting off an outer peripheral thread portion of said bolt. 5. The faucet mounting structure according to claim 4, wherein the first engaged surface is formed continuously in the axial direction until reaching the lower end of the fastening shaft. 6. The faucet according to claim 3, wherein an upper part of the fastening shaft made of the bolt protrudes upward through a through hole formed in a bottom part of the faucet device.
By fastening a nut separate from the bottom to the upper portion of the fastening shaft, the fastening shaft is fixed to the faucet device, and at least a part of the inner surface of the through hole in the circumferential direction is non-circular. A second engagement surface having a shape, and at least a part of a portion of the fastening shaft located in the through hole in the circumferential direction is engaged with the second engagement surface to rotate in a rotational direction of the fastening shaft. A mounting structure for a faucet device, characterized in that it is a non-arc-shaped second engaged surface for positioning. 7. The fastening shaft according to claim 6, wherein the fastening shaft is provided with a holding portion having a shape projecting in a direction perpendicular to the axis for holding the bottom of the faucet device from both upper and lower surfaces together with the nut. Characteristic faucet mounting structure. 8. The second engagement surface according to claim 7, wherein an upper surface of the holding portion is inclined so as to approach a center side of the fastening shaft as it goes upward. The mounting structure for a faucet device, wherein the second engaging surface having a correspondingly inclined and flat surface is formed on the inner surface of the through hole at the bottom.