JP5401284B2 - Faucet handle mounting structure - Google Patents

Description

  The present invention relates to a faucet such as a single faucet or a two-handle type mixing faucet, and more particularly to a mounting structure for a faucet handle.

For example, as shown in FIG. 14, when a new faucet handle (4) is attached to the single faucet (1) instead of the existing faucet handle, the male serration (21) at the tip of the spindle (2) is bitten. A hexagonal cross-section adapter (300a) having a female serration (301) to be fitted in the axial center is fitted into a hexagonal cross-section recess (41) formed on the back side of the replacement faucet handle (4). The fixing screw (5) passes through the faucet handle (4) and the adapter (300a) from the front side of the replacement faucet handle (4) and is screwed into the screw hole (22) of the spindle (2) shaft center portion. In general, it is configured as described above (see, for example, Patent Documents 1 and 2 below).
The faucet body (10) is provided with an upward protruding cylindrical portion (101) having an internal thread (101a), and the lower portion of the spindle (2) having an external thread (23) is connected to the upward protruding cylindrical portion ( 101) and is rotatably mounted by a nut (7) through a packing (6). A top (8) having a valve body (81) at the lower end is inserted into the lower end of the spindle (2) from below. The replacement faucet handle (4) includes an upper wall (42) and a peripheral wall (43) extending downward from the peripheral edge of the upper wall (42). The upper wall (42) is thinned (see FIGS. 4, 5, 11, 12, and 13 described later). A vertical through hole (421) for inserting the fixing screw (5) is formed in the center of the upper wall (42). The fitting recess (41) is formed in the peripheral portion of the vertical through hole (421) on the lower surface of the upper wall (42). On the upper surface of the upper wall (42), a concave section (422) having a circular step in the middle is formed, and the fixing screw (5) is formed in a lower portion (422a) of the concave section below the step. The head (51) is housed. Moreover, the cap (9) for concealing the screw head (51) is fitted into the upper part (422b) of the step in the recess.

Here, the size (outer diameter, valley diameter, pitch, etc.) of the male serration (21) formed at the tip of the spindle (2) is not uniform among the manufacturers, and currently there are a total of four sizes. Male serrations (21) are used.
Therefore, when selling the replacement faucet handle (4), as shown in FIG. 15, the female serration (301) meshed with the male serration (21) can be adapted to the size of the male serration (21) of each manufacturer. It was necessary to bundle four types of adapters (300a) (300b) (300c) (300d) with
However, only one of the four types of adapters (300a) (300b) (300c) (300d) bundled with the replacement faucet handle is actually used, and the remaining three are used as trash. There was no use other than disposal, and waste was generated.

Microfilm of Japanese Utility Model No. 53-109431 (Japanese Utility Model Application No. 55-26160) Microfilm of Japanese Utility Model No. 49-45879 (Japanese Utility Model Application No. 50-134717)

  In the present invention, an adapter having a female serration meshed with a male serration at the tip of a spindle is fitted into a fitting recess formed on the back side of the faucet handle, and a fixing screw penetrates the faucet handle and the adapter. This is related to the faucet handle mounting structure that is screwed into the screw hole of the spindle shaft center, and its purpose is to replace the existing faucets of various manufacturers with water for replacement without preparing several types of adapters. An object to which a stopper handle can be attached is provided to reduce the environmental load.

  In the first faucet handle mounting structure according to the present invention, a plurality of through holes having a hole diameter through which a fixing screw can be inserted are formed in the adapter, and at least any one of the end portions of all the through holes of the adapter. Female serrations that engage with male serrations of different sizes are formed at the ends of the two through holes, and the fitting recesses of the adapter and faucet handle fit into each other when any female serration is engaged with the male serrations. It has a shape that fits together.

  According to the first faucet handle mounting structure, if only one adapter as described above is prepared, the replacement faucet handle can be easily attached to two or more kinds of faucets having different male serration sizes. Therefore, it is possible to contribute to the reduction of the environmental load without causing a situation of discarding a useless adapter that has not been used as in the prior art at the beginning.

As an embodiment of the first faucet handle mounting structure according to the present invention, the adapter has a substantially rectangular parallelepiped shape having at least four planes of the same shape and the same size, with adjacent ones intersecting at right angles and continuing in one vertical rotation direction. In some cases, two through-holes are formed so that both ends are opened at the center of two planes at symmetrical positions among the four planes.
Here, the “substantially rectangular parallelepiped shape” includes a rectangular parallelepiped such as a regular hexahedron (dice shape). However, in the case of a rectangular parallelepiped other than a regular hexahedron, the four planes (for example, the upper surface, the left side surface, the lower surface, and the right side surface) arranged in one vertical rotation direction are limited to those having the same shape and the same size. In addition, the “substantially rectangular parallelepiped shape” includes a solid (a dodecahedron) in which the remaining two directions of the rectangular parallelepiped are each a quadrangular pyramid.

  According to the faucet handle attachment structure of this embodiment, the faucet handle can be attached to the spindle having male serrations of two to four sizes by one adapter. Moreover, in this embodiment, since the adapter can be rotated sequentially in the vertical direction and the female serration to be used can be selected, the mounting operation is simple. Furthermore, according to this embodiment, since the adapter is relatively compact and the area of the fitting recess into which the adapter is fitted does not have to be so large, the adapter can also be used for a small-diameter replacement faucet handle. .

As another embodiment of the first faucet handle mounting structure according to the present invention, the adapter has at least four substantially identical and large planes arranged in a positional relationship corresponding to four faces of a regular tetrahedron. In some cases, the four through-holes are formed so as to pass through a point corresponding to the center of the regular tetrahedron and have one end opened at the center of each of the four planes.
Here, examples of the “substantially tetrahedral shape” include a three-dimensional shape such as a tetrapod, a regular tetrahedron, and a truncated tetrahedron (each vertex of the regular tetrahedron is cut off).

  Also in the case of the above aspect, the faucet handle can be attached to the spindle having male serrations of two to four kinds of sizes by one adapter. Further, according to this embodiment, since the size of the end portion of the through hole of the adapter is relatively large and a serration having a sufficient height (depth) can be formed here, the attached faucet handle It is difficult for rattling to occur.

  Next, according to the second faucet handle mounting structure of the present invention, the fitting recess of the faucet handle is provided with a pair of a central portion where the spindle tip portion is disposed, and a pair provided on both sides of the central portion. The adapter is composed of a pair of adapter members accommodated in each adapter accommodating portion, and each adapter member has a plurality of female serrations engaged with male serrations of different sizes in the circumferential direction. The adapter member and the adapter housing part of the faucet handle are shaped so that they can be fitted to each other when any female serration is engaged with the male serration. is there.

According to the second faucet handle mounting structure, if a pair of adapter members as described above is prepared, the replacement faucet handle can be easily attached to two or more faucets having different male serration sizes. Therefore, there is no waste of discarding an adapter that has not been used as in the prior art at the beginning, which can contribute to a reduction in environmental load.
In addition, according to the second faucet handle mounting structure, the size in the height direction of the adapter can be made relatively small, so that the adapter can be adopted for a faucet handle having a low height.

It is a vertical sectional view of the single water tap according to the first embodiment of the present invention. FIG. 2 is an exploded vertical sectional view of the single water faucet of FIG. 1. The adapter used by 1st Embodiment is shown, Comprising: (a) is a perspective view, (b) is sectional drawing which notched one part. It is a bottom view of the faucet handle used in a 1st embodiment. It is a vertical sectional view of a single water tap according to a second embodiment of the present invention. FIG. 6 is an exploded vertical sectional view of the single water faucet of FIG. 5. The adapter used by 2nd Embodiment is shown, Comprising: (a) is a perspective view, (b) is sectional drawing which notched one part. It is a bottom view of the faucet handle used in the second embodiment. It is a vertical sectional view of a single water tap according to a third embodiment of the present invention. FIG. 10 is an exploded vertical sectional view of the single water faucet of FIG. 9. It is a downward perspective sectional view which isolate | separates and shows the faucet handle and adapter which are used in 3rd Embodiment. It is a downward perspective sectional view of the state where the adapter was inserted in the fitting recess of the faucet handle used in the third embodiment. It is a bottom view of the faucet handle used in a 3rd embodiment. It is a vertical sectional view of a single water faucet, showing a conventional faucet handle mounting structure. It is a disassembled vertical sectional view of a single water faucet, showing a conventional faucet handle mounting structure.

First, a first embodiment of the present invention will be described below with reference to FIGS.
In this embodiment, the first faucet handle mounting structure according to the present invention is applied to mounting a replacement faucet handle in a single faucet.

  As shown in FIGS. 1 and 2, the faucet handle (4A) of the single faucet (1) has an adapter (3A) having a female serration that meshes with the male serration (21) at the tip of the spindle (2). The fixing screw (5) is inserted into the fitting recess (41A) formed on the back side of the faucet handle (4A), and the spindle (2) passes through the faucet handle (4A) and the adapter (3A). It is attached to the tip of the spindle (2) by being screwed into the screw hole (22) of the shaft center.

  Since the basic structure of the single water tap (1) shown in FIGS. 1 and 2 is the same as that of the prior art shown in FIGS. 14 and 15, the description thereof is omitted here. Note that the present invention can also be applied to a single water faucet having a basic structure other than those exemplified here (for example, a non-rising type in which the spindle does not move up and down).

As shown in FIG. 3, the adapter (3A) has a substantially rectangular parallelepiped shape having at least four planes of the same shape and the same size that are adjacent to each other and intersect each other at a right angle and extend in one vertical rotation direction. Two through-holes (31a) and (31b) having a hole diameter through which the screw (5) can be inserted are formed so that both ends open at the center of the two planes at symmetrical positions among the four planes. ing. Female serrations (321) (322) (323) (324) that can be engaged with male serrations (21) of different sizes are formed at a total of four through-hole ends of the adapter (3 A).
More precisely, the adapter (3A) is formed of a substantially dodecahedron whose upper surface, left side surface, lower surface and right side surface are flat rectangular planes of the same shape and size, and the front surface and the rear surface are each a quadrangular pyramid shape. . The two through-holes are composed of a vertical through-hole (31a) having both ends opened at the center of the upper surface and the lower surface, and a horizontal through-hole (31b) having both ends opened at the center of the left side and right side. (31a) and (31b) are orthogonal at the center of the adapter (3A).
Therefore, as shown in FIG. 4, the vertical cross section of the adapter (3A) passing through the axis of the vertical through hole (31a) and the horizontal cross section of the adapter (3B) passing through the axis of the horizontal through hole (31b) are: It becomes a regular hexagon of the same shape and size.
Correspondingly, the fitting recess (41A) of the faucet handle (4A) also has a regular hexagonal cross section substantially the same as the cross section of the adapter (3A).
With the above configuration, the fitting recess (41A) of the adapter (3A) and the faucet handle (4A) is the male serration of any of the four female serrations (321) (322) (323) (324). Even when meshed with (21), they fit each other.
Inside the adapter (3A), two front and rear projections (33) for receiving the tip surface of the spindle (2) are formed.
As a material of the adapter (3A), for example, a metal such as aluminum is used, but a synthetic resin such as polyacetal (POM) may be used.

Next, an example of an operation procedure for attaching the replacement faucet handle (4A) to the single faucet (1) with the above handle attachment structure will be described.
First, as a premise of the replacement work, the existing faucet handle is removed from the tip of the spindle (2) by removing the fixing screw (5) with a screwdriver or the like.
Next, of the four female serrations (321) (322) (323) (324) of the adapter (3A), the one that matches the size of the male serration (21) at the tip of the spindle (2) is selected ( 321) mesh with male serration (21). At this time, if the adapter (3A) is rotated by 90 ° in the vertical direction, the female serrations (321), (322), (323), and (324) of each size are sequentially arranged on the lower surface side. ) And size matching can be easily performed.
Then, the faucet handle (4A) is put on the adapter (3A) so that the adapter (3A) is fitted into the fitting recess (41A).
Thereafter, the fixing screw (5) is screwed into the screw hole (22) of the spindle (2) through the faucet handle (4A) and the through holes (421) (31a) of the adapter (3A).
Finally, the cap (9) is fitted over the upper part (422b) of the recess of the faucet handle (4A).
Thus, the replacement faucet handle (4A) can be easily attached to the single faucet (1).
According to this embodiment, a single adapter (3A) can be attached to a single faucet (1) with male serrations (21) of various sizes and is not used as in the prior art. There is no such thing as discarding several types of adapters.
In addition, according to this embodiment, the adapter (3A) is compact, and the fitting recess (41A) into which the adapter (3A) is inserted can be small, so that it is also suitable for a mounting structure for a small-diameter faucet handle. .

5 to 8 show a second embodiment of the present invention.
In this embodiment, the first faucet handle mounting structure according to the present invention is applied to the mounting of a replacement faucet handle in a single faucet. FIG. 1 to FIG. 4 except for the following points. This is almost the same as the first embodiment shown.

In the faucet handle mounting structure of this embodiment, the adapter (3B) is of a substantially tetrahedron shape having at least four planes of the same shape and the same size arranged in a positional relationship corresponding to the four sides of the regular tetrahedron. Thus, the four through holes (31a) (31b) (31c) (31d) having a hole diameter through which the fixing screw (5) can be inserted pass through a point corresponding to the center of the regular tetrahedron and one end of the four through holes (31a) (31b) (31c) (31d). It forms so that it may open in the center part of each plane.
More precisely, the adapter (3B) is of a tetrapod type with four legs (34) where adjacent ones intersect radially at an angle of 120 °. One end of each of the four through holes (31a), (31b), (31c), and (31d) opens at the center of the tip surface of each leg (34), and the other end passes through the center of the adapter (3B). It forms so that it may open to the leg base part (35) located in the opposite side to a surface. Female serrations (321) (mating with male serrations (21) of different sizes are fitted to one end portions of the through holes (31a) (31b) (31c) (31d) opened in the front end surface of the leg portions (34). 322) (323) (324) are formed.
As shown in FIG. 8, even when the adapter (3B) is rotated so that any of the female serrations (321), (322), (323), and (324) are at the bottom, the adapter (3B) is viewed from the bottom surface. The contour shape is a three-pronged shape in which three legs (34) extend radially at equal intervals.
Correspondingly, the fitting recess (41B) of the faucet handle (4B) also has a three-pronged cross section substantially the same as the contour shape of the adapter (3B).
With the above configuration, the fitting recess (41B) of the adapter (3B) and the faucet handle is one of the four female serrations (321), (322), (323), and (324), which is the male serration (21). Even when engaged, they fit together.
At the inner end of each female serration (321) (322) (323) (324) in the adapter (3B), an annular inward projection (36) for receiving the tip surface of the spindle (2) is formed. Yes.
As a material of the adapter (3B), for example, a synthetic resin such as polyacetal (POM) is used.

In this embodiment, as in the first embodiment, the male serration (21) at the tip of the spindle (2) among the four female serrations (321) (322) (323) (324) of the adapter (3B) (21) ) Is selected to match the size of (), and this (321) is meshed with the male serration (21), and then the faucet handle (4B) is covered from above and the adapter (3B ), The fixing screw (5) is inserted into the screw hole (22) of the spindle (2) through the faucet handle (4B) and the through hole (421) (31a) of the adapter (3B). The faucet handle (4B) can be attached by screwing it into.
Further, according to the faucet handle mounting structure of this embodiment, the size of the end of the through hole (421) (31a) of the adapter (3B) is large, and the serration (321) having a sufficient height (depth) here. ) (322) (323) (324) can be formed, so that the attached faucet handle (4B) is less likely to rattle.

9 to 13 show a third embodiment of the present invention.
In this embodiment, the second faucet handle mounting structure according to the present invention is applied to mounting a replacement faucet handle in a single faucet.

In the faucet handle mounting structure according to this embodiment, the fitting recess (41C) of the faucet handle (4C) is connected to the central portion (411) where the spindle tip portion is disposed and the central portion (411). It consists of a pair of adapter accommodating parts (412) provided on the left and right sides.
The central portion (411) has a diameter slightly larger than the outer diameter of the largest male serration (21), and is formed coaxially therewith below the screw insertion hole (421).
The pair of adapter accommodating portions (412) has a circular cross section having a diameter larger than the diameter of the central portion (411). However, the cross-sectional shape of the adapter accommodating portion (412) is not limited to a circle, and may be a regular polygon such as a square.

The adapter (3C) includes a pair of adapter members (37) accommodated in the two adapter accommodating portions (412) of the faucet handle (4C).
Each adapter member (37) has four female serrations (321) (322) (323) (324) arranged at equal intervals in the circumferential direction on a circumferential surface of a cylindrical body that can be rotatably accommodated in the adapter accommodating portion (412). It is formed. The four female serrations (321), (322), (323), and (324) have sizes that can be meshed with male serrations (21) of different sizes. In this embodiment, the number of female serrations is four, but it can be increased or decreased as appropriate. Moreover, in this embodiment, although each adapter member (37) is formed from a cylindrical body, according to the cross-sectional shape of an adapter accommodating part (412), it can also be formed from polygonal column bodies, such as a square column body. In the case of a polygonal column, one female serration is formed on each surface.
With the above configuration, the adapter member (37) and the adapter accommodating portion (412) of the faucet handle (4C) are male serrations, any of the four female serrations (321) (322) (323) (324). Even in the state of being engaged with (21), they are fitted to each other.
A concave arc-shaped rib (38) for receiving the tip of the spindle (2) is formed at the upper end of each female serration (321) (322) (323) (324) on the peripheral surface of the adapter member (37). ing.
As a material of the adapter member (37), for example, a synthetic resin such as polyacetal (POM) is used.

In this embodiment, when the replacement faucet handle (4C) is attached to the single faucet (1), for example, first, each adapter member (37) is connected to these four female serrations (321) (322) ( 323) and 324, the adapter housing portion (321) that matches the size of the male serration (21) at the tip of the spindle (2) (321) faces the central portion (411) of the fitting recess (41C). 412) is rotated horizontally as appropriate.
In this state, the tip of the spindle (2) is inserted into the stop portion (411) of the fitting recess of the faucet handle (4C), and the male serration (321) and the female serration (321) of both adapter members (37) are inserted. ).
Thereafter, the fixing screw (5) is screwed into the screw hole (22) of the spindle (2), and the cap (9) is fitted over the upper part (422b) of the recess of the faucet handle (4C).
Thus, the replacement faucet handle (4C) can be easily attached to the single faucet (1).
According to this embodiment, it is possible to attach the faucet handle (4C) to the single faucet (1) with male serrations (21) of various sizes by a pair of adapter members (37), There is no such thing as discarding several types of adapters that were not used as in the prior art.
Further, according to the faucet handle mounting structure of this embodiment, the size in the height direction of the adapter (3C) can be reduced, so that it is also suitable for a faucet handle mounting structure having a low height.

  It should be noted that each of the above embodiments is merely an example, and it is of course possible to implement the present invention with appropriate modifications within a scope not departing from the gist of the present invention described in the claims. .

(1): Single faucet (2): Spindle (21): Male serration (22): Screw hole (3A) (3B) (3C): Adapter (31a) (31b) (31c) (31d): Through hole (321) (322) (323) (324): Female serration (37): Adapter member (4A) (4B) (4C): Faucet handle (41A) (41B) (41C): Fitting recess (411) : Center part (412): Adapter housing part (5): Fixing screw

Claims (4)

An adapter having a female serration that meshes with a male serration at the tip of the spindle is fitted into a fitting recess formed on the back side of the faucet handle, and a fixing screw passes through the faucet handle and the adapter to reach the spindle axis. In the faucet handle mounting structure screwed into the screw hole of the part,
A plurality of through-holes having a hole diameter through which the fixing screw can be inserted are formed in the adapter, and at least any two through-hole end portions of the adapter are provided with male serrations of different sizes. A female serration is formed that can be engaged,
The faucet handle mounting structure characterized in that the fitting recess of the adapter and the faucet handle has a shape that fits to each other when any female serration is engaged with the male serration.   The adapter is of a substantially rectangular parallelepiped shape having at least four planes of the same shape and the same size, in which adjacent ones intersect at right angles and continue in one vertical rotation direction, and each of the two through holes has the four planes. The faucet handle mounting structure according to claim 1, wherein both ends are open at the center of two planes at symmetrical positions.   The adapter is of a substantially tetrahedron shape having at least four planes of the same shape and the same size arranged in a positional relationship corresponding to four sides of a regular tetrahedron, and the four through holes are formed at the center of the regular tetrahedron. The faucet handle mounting structure according to claim 1, wherein the faucet handle mounting structure is formed so as to pass through a corresponding point and have one end opened at a central portion of each of the four planes. An adapter having a female serration that meshes with a male serration at the tip of the spindle is fitted into a fitting recess formed on the back side of the faucet handle, and a fixing screw passes through the faucet handle and the adapter to reach the spindle axis. In the faucet handle mounting structure screwed into the screw hole of the part,
The fitting recess of the faucet handle is composed of a central portion where the spindle tip portion is disposed, and a pair of adapter accommodating portions provided on both sides of the central portion,
The adapter is composed of a pair of adapter members housed in each adapter housing portion,
Each adapter member is formed with a plurality of female serrations that are meshed with male serrations of different sizes aligned in the circumferential direction,
The faucet handle mounting is characterized in that the adapter member and the adapter accommodating portion of the faucet handle have shapes that fit with each other when any female serration is engaged with the male serration. Construction.

Images