JP2580120Y2 - Drain cock assembly - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain plug assembly used for a bathtub, a washbasin, and the like, and more particularly to a drain plug assembly in which a ball chain is connected to a drain plug body by a connecting fitting.

[0002]

2. Description of the Related Art A first outlet is provided at a drain port of a bathtub or a washbasin.
The drain plug shown in FIGS. This drain plug is
A metal fitting 3 is fitted into a central hole 2 of a rubber drain plug body 1. The metal fitting 3 includes a ring 4 and a chain connecting metal fitting 5.
The ball chain 6 is connected via the through hole to form a drain plug assembly 7.

[0003] As shown in Fig. 12, the ball chain connecting metal fitting 5 has a shape in which annular portions 8, 9 at both ends are connected by a tie portion 10, and the annular portions 8, 9 are circular. Openings 11, 12
Are drilled. The tie portion 10 is provided with a slit 13, which is connected to the opening 11. The opening 11 has an opening diameter that allows the ball 6a of the ball chain 6 to pass through, and the slit 13 has a width that allows the ball 6a to be hooked.

After the ball 6a at the tip of the ball chain 6 is hooked on the slit 13 through the opening 11, the ring portions 8, 9 are overlapped. Next, the rivet pin 14 is passed through the openings 11 and 12, and the tip of the rivet pin 14 is caulked so as to expand. Thereby, the chain 6 is connected to the chain connecting fitting 5.

The ring 4 is a double ring made of spring steel,
By pushing open the loops 4 a and 4 b and fitting the opening 15 (the center hole of the rivet pin 14) of the chain link fitting 5 to the ring 4, the chain link fitting 5 is attached to the ring 4.
Similarly, the loops 4a and 4b of the ring 4 are pushed open to fit the ring 4 into the connection fitting mounting hole 3a at the tip of the fitting 3.

As is apparent from the above description, the first
In FIGS. 0 and 11, the upper end of the metal fitting 3 is a chain connecting part.

In FIGS. 10 and 11, the metal fitting 3 is connected to the drain plug body 1.
Of Japanese Patent Application Laid-Open No. 59-2221.
No. 16 discloses insert molding of metal fittings.

[0008]

The above conventional drain plug assembly has the following problems.

The operation of pushing open the loops 4 a and 4 b of the ring 4 and fitting the ring 4 into the connection fitting mounting holes 3 a of the fitting 3 is troublesome. That is, the ring 4 is of high elasticity, and the force with which the loops 4a and 4b try to overlap is considerably strong. For this reason, in order to push open the loops 4a and 4b, it is necessary for the operator to put a strong force on the fingertip, and furthermore, it is necessary to insert the tip of the loop into the connection fitting mounting hole 3a while pushing the loops 4a and 4b open. This work was extremely troublesome.

For the same reason, the work of fitting the chain link fitting 5 into the opening 15 of the ring 4 is extremely troublesome.

The operation of caulking the rivet pin 14 is troublesome. That is, after the rivet pin 14 is caulked, the center hole of the rivet pin 14
Since the ring 4 is passed through the opening 15, it is necessary to prevent the opening 15 from being collapsed when the rivet pin 14 is closed. For this reason, when caulking the rivet pin 14, it is necessary to pay close attention, and the work is troublesome.

[0012]

According to a first aspect of the present invention, there is provided a drain plug assembly, wherein a rubber drain plug main body, a chain connecting portion projecting from an upper surface of the drain plug main body, and both side surfaces of the chain connecting portion communicate with each other. In a drain plug assembly comprising a drain plug having a drilled connecting fitting mounting hole, and a ball chain connected to the connecting fitting mounting hole of the chain connecting portion via a connecting fitting, the connecting fitting is the above-mentioned connecting fitting. A first metal fitting which is bent in a substantially U-shape so as to sandwich the both side surfaces of the chain connecting part at both ends; and a pin-shaped second metal fitting connecting the first metal fitting to the chain connecting part. The first metal fitting has openings provided at both ends thereof through which the second metal fitting is inserted, and a slit connected to at least one of the openings and extending toward the other opening. The one opening has an opening diameter through which the balls of the chain can be inserted. A ball at the tip of the ball chain is hung in the slit, and the pin-shaped second metal fitting is provided with both the opening of the first metal fitting and the connection metal fitting hole of the chain connection part. It is characterized in that it is inserted through

According to a second aspect of the present invention, in the drain plug assembly according to the first aspect, the connecting fitting further covers the chain connecting part, and the first fitting is disposed on an outer surface thereof. A pair of extending pieces that are integral with the crown portion and extend so as to extend around both ends of the first metal fitting, and are provided coaxially with the crown portion and the extending piece, respectively. A third metal fitting having an opening, wherein the pin-shaped second metal fitting has the opening of the third metal fitting, the opening of the first metal fitting, and the connection of the chain connecting portion. It is characterized in that it is inserted through the fitting mounting hole.

[0014]

According to the drain plug assembly of the first aspect, the ball of the chain is engaged with the slit of the first metal fitting through the opening on one end side of the substantially U-shaped first metal fitting. Next, the chain connecting portion is sandwiched between both ends of the first metal fitting from both sides. Then, a pin-shaped second metal fitting is passed through the opening of the first metal fitting and the connecting metal fitting hole of the chain connecting part, and the first metal fitting is fastened to the chain connecting part via the second metal fitting. In the drain plug assembly according to the second aspect, for example, the ball chain is first connected to the first metal fitting in the same manner as in the first aspect. Next, the crowned portion of the third metal fitting is crowned on the chain connecting portion. Next, both ends of the first metal fitting are inserted between the crowned part of the third metal fitting and the pair of extending pieces.

Then, a pin-shaped second metal fitting is inserted into the opening of the extension piece, the opening of the first metal fitting, and the connecting metal fitting mounting hole of the chain connecting part, and passes through the second and third metal fittings. The first metal fitting is fastened to the chain connection part.

[0016]

Embodiments will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view of a drain plug assembly according to an embodiment of the present invention, FIG. 2 is an enlarged view of a main part of FIG. 1, and FIG. 3 is an exploded perspective view.

The drain plug assembly comprises a rubber drain plug body 20 as a whole, and a ball chain 6 connected to the drain plug body 20 via a first metal fitting 21 and a second metal fitting 22. Have been. A chain connecting portion 23 is projected from the upper surface of the drain plug main body 20, and a connecting fitting mounting hole 24 is provided in the chain connecting portion 23 so as to communicate both side surfaces of the chain connecting portion 23. The chain connecting portion 23 is formed integrally with the drain plug main body 20 by rubber.

The first metal fitting 21 has annular portions 25 at both ends.
26, and the annular portions 25 and 26 are
It is a substantially U-shaped one connected by 7. Annular parts 25, 26
Have openings 28, 2 through which the second metal fitting 22 is inserted.
9 are drilled. The tie portion 27 is provided with a slit 30 connected to the opening 28 and extending along the longitudinal direction of the tie portion 27. The opening 28 has a size that allows the ball 6 a at the tip of the ball chain 6 to pass through, and the slit 30
Has an opening width at which the ball 6a can be locked.

The second metal fitting 22 has a cylindrical part 22a and a flange part 22b. The cylindrical part 22a is sized to be inserted into the openings 28 and 29 of the first metal part 21. The connection fitting mounting hole 24 of the drain plug body 20 also
The second metal fitting 22 has such a size that it can pass through the cylindrical part 22a.

In order to assemble the drain plug assembly, first, the ball 6a of the chain 6 is engaged with the slit 30 through the opening 28. Next, the annular portion 2 of the first metal fitting 21
5 and 26 are arranged along both surfaces of the chain connecting portion 23 of the drain plug main body 20. Next, the cylindrical portion 22a of the second metal fitting 22 is connected to the opening 29, the connecting metal fitting mounting hole 24, and the opening 28.
Insert in order. Thereafter, the distal end of the cylindrical portion 22a is swaged to expand. Thus, the drain plug assembly is completed as shown in FIGS.

When assembling the drain plug assembly of the present embodiment, the distal end of the cylindrical portion 22a of the second metal fitting 22 is swaged so as to expand. No special members are inserted into the inside when assembling. Therefore, the work of caulking the second metal fitting 22 can be easily performed without paying much attention.

In the above embodiment, the cylindrical portion 2 of the second
Although the tip of 2a is swaged so as to expand, in this embodiment, as shown in FIG. 4, the plug 22B is pressed into the tip of the second metal fitting 22A, and as shown in FIG. The first metal fitting 21 may be fastened to the chain connecting portion 23 by integrating the metal fitting 22A and the plug 22B.

FIGS. 6 to 9 show a drain plug assembly according to an embodiment of the present invention.
The figure is a vertical sectional view of the upper part of the drain plug body, FIG. 7 is a perspective view of the third fitting, FIG. 8 is a sectional view taken along the line VIII-VIII of FIG. 7, and FIG. 9 is IX of FIG. It is sectional drawing which follows the -IX line.

In this embodiment, the third fitting 33 is covered by the chain connecting portion 23 of the drain plug body 20. The third metal fitting 33 has a hollow box-shaped crowned part 34 whose lower side is open.
And a pair of extending pieces 35, 36 extending from the crowned portion 34 to both sides and rising upward, and the extending pieces 35, 36
And openings 4 provided in portions of the side surfaces of the crowned portion 34 facing the extension pieces 35 and 36.
0 and 41. The openings 37, 38, 4
0 and 41 are provided coaxially.

When assembling this drain plug assembly, first, the third metal fitting 33 is put on the chain connecting portion 23.
That is, the chain connecting portion 23 is inserted into the crowned portion 34. At this time, the direction of the axis of the connecting bracket mounting hole 24 is
1 so as to match the direction connecting them. Thereafter, the first metal fitting 21 in which the ball 6 a at the tip of the ball chain 6 is engaged with the slit 30.
Is engaged with the crowned portion 34. That is, the first metal fitting 2
The first annular portions 25 and 26 are connected to the crowned portion 34 of the third metal fitting 33.
And between the extension piece 35 and between the crowned portion 34 and the extension piece 36. Thereafter, the second metal fitting 22 is connected to the opening 3.
8, 29, 41, connecting bracket mounting hole 24, openings 40, 2
8 and 37 are inserted in this order. Then, the tip of the cylindrical portion 22a of the second metal fitting 22 is swaged so as to expand.

Thus, the drain plug assembly is completed. Even in the present embodiment, it is not necessary to pay much attention when performing the operation of caulking the second metal fitting 22, and the drain plug assembly is not required. Very easy to assemble.

In the embodiment of claim 2,
As shown in FIGS. 4 and 5, a plug may be pressed into the tip of the second metal fitting.

In the above embodiment, the chain connecting portion 23 is formed integrally with the drain plug main body 20, but a separate metal fitting may be fitted into the central hole of the drain plug main body as in the above-mentioned conventional example. Further, a metal fitting for forming the chain connecting portion may be inserted into the drain plug body.

[0029]

As described above, the drain plug assembly of the first and second aspects is extremely easy to assemble, and the workability of assembling the drain plug assembly is significantly improved.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view of a drain plug assembly according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

FIG. 3 is an exploded perspective view of the embodiment of FIG.

FIG. 4 is a perspective view showing a second metal fitting 22A.

FIG. 5 is a longitudinal sectional view showing a second fitting 22A.

FIG. 6 is an enlarged sectional view of a main part of a drain cock assembly according to the second embodiment.

7 is a perspective view of a third fitting 33. FIG.

8 is a sectional view taken along the line VIII-VIII in FIG.

FIG. 9 is a sectional view taken along line IX-IX in FIG. 8;

FIG. 10 is a perspective view of a conventional drain plug assembly.

FIG. 11 is a longitudinal sectional view of a conventional drain plug assembly.

FIG. 12 is a perspective view of the chain link fitting 5;

[Explanation of symbols]

 Reference Signs List 6 ball chain 6a ball 20 drain plug main body 21 first metal fitting 22 second metal fitting 23 chain connecting part 24 connecting metal fitting mounting hole 25, 26 annular part 28, 29, 37, 38, 40, 41 opening 30 slit 33 first 3 metal fittings 34 crowned parts 35, 36 extension pieces

Claims (2)

(57) [Scope of request for utility model registration] 1. A drain plug having a rubber drain plug main body, a chain connecting portion projecting from an upper surface of the drain plug main body, and a connecting fitting mounting hole formed so as to communicate with both side surfaces of the chain connecting portion. A drain plug assembly comprising: a connection chain mounting hole of the chain connection portion; and a ball chain connected via a connection metal member, wherein the connection metal member sandwiches the both side surfaces of the chain connection portion at both ends. And a pin-shaped second metal fitting for connecting the first metal fitting to the chain connecting portion, wherein the first metal fitting is provided with the second metal fitting. An opening through which a metal fitting is inserted is provided at each of both ends, and a slit is provided which is continuous with at least one of the openings and extends toward the other opening. The one opening allows the balls of the chain to be inserted. Has an opening diameter that allows the ball at the tip of the chain to be hooked to the slit. And which, the pin-shaped second bracket, discharge valve assembly, characterized in that it is inserted into said connecting fitting mounting hole with the opening of both the fitting of said first said chain coupling portion. 2. The crown according to claim 1, further comprising: a crown covered by the chain connecting portion, wherein the first bracket is arranged on an outer surface side of the chain fitting, and an integral part of the crown. And a third having a pair of extending pieces extending so as to extend around both ends of the first metal fitting, and an opening provided coaxially with the crowned portion and the extending piece, respectively. A metal fitting, wherein the pin-shaped second metal fitting has the opening of the third metal fitting,
A drain plug assembly, wherein the drain plug assembly is inserted through the opening of the first metal fitting and the connecting metal fitting mounting hole of the chain connecting part.