JPH0345662Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) This invention relates to a sink drain plug that has been improved in order to reduce manufacturing costs.

(Prior Art) Conventionally, among this type of drain plugs for sinks, Utility Model Publication No. 62-27195 has been developed as one that can drain water in a short time and can easily shake out debris when it becomes clogged. A sink drain plug is proposed in the official gazette.

This drain plug for sinks has a through hole in the center of a wire mesh garbage receptacle whose mouth edge is reinforced with a collar fitting with a U-shaped cross section, and a bearing that passes through the through hole by abutting washers above and below the through hole. The metal fittings are caulked, and a stopper is provided at the bottom of the lifting shaft attached to the bearing metal fittings, and a knob is provided at the top. is bored out, and an engaging portion for locking the lifting shaft with a 45° phase shift is formed on the top of the hole.

(Problems that the invention seeks to solve) <Problems with conventional technology> However, recently, the wave of cost reduction has been coming even to such drain plugs for sinks. However, it was pointed out that the costs are high for the following parts.

In other words, first of all, it is a bearing fitting, and since the entire fitting is formed by casting, it can be formed at a lower cost compared to cutting, etc., but there is still room for cost reduction.Furthermore, there is still room for cost reduction. In order to attach the bearing fittings to the hole, it is necessary to put washers on the top and bottom of the through hole and caulk the bearing fittings from above, but the work of interposing the washers is troublesome and has an impact on manufacturing costs. These problems have become a problem when trying to reduce costs.

In addition, when the bearing fitting is a cast product, there is a problem that it is easily oxidized.

<Technical Issues> Therefore, in view of the above-mentioned problems, this invention has the effect of draining water in a short time and making it possible to easily shake out debris when it becomes clogged. However, it was devised to achieve a significant cost reduction and to provide a product with excellent durability.

[Structure of the invention] (Means for solving the problem) This invention consists of drilling a through hole in the center of a wire mesh garbage receptacle whose opening edge is hemmed with a metal rim to form a flange shape and reinforced. A bearing fitting is attached to this through-hole, and a plug is provided at the bottom of the bearing fitting, and a square lifting shaft with a knob at the top is inserted through the bearing fitting, and the bearing fitting is a cylinder with a bottom. It consists of a bearing cylinder with a flange formed on its opening edge, and a cylindrical locking cylinder with a flange formed on one opening edge. A hole is opened by press molding, and a locking recess for locking the lifting shaft is formed by press molding from the outer surface of the bottom with an appropriate angular phase shift with respect to the bearing hole, and the locking recess is drawn by press molding to engage the through hole. While inserting the cylindrical portion of the stop tube, this cylindrical portion is forcibly fitted into the bearing tube, and the wire mesh of the dirt receptacle is sandwiched between at least the flanges of the bearing tube and the lock tube, and then the bearing metal fitting is inserted. By installing this, the above-mentioned problems are solved.

(Function) The drain plug for a sink according to this invention has a through hole in the center of a reinforced wire mesh garbage receptacle formed into a flange shape by edging the mouth edge with a metal rim, and a bearing is attached to the through hole. A metal fitting is attached, and a plug is provided at the bottom of the bearing metal fitting, and an angular lifting shaft with a knob provided at the top is inserted through and attached to the bearing metal fitting, so that the wire mesh portion catches dirt and quickly drains water, etc. At that time, the entire structure is reinforced by the flange.

When installing the bearing fittings, the bearing tube is arranged so that the flange is in contact with the wire mesh from the inside of the wire mesh dust receptacle, and the cylindrical part of the locking tube is passed through the through hole from the outside. The flanges are forcibly fitted into the cylinder and installed by sandwiching a wire mesh between the respective flanges.

In addition, a bearing hole and a latching recess are formed in the bottom of the bearing cylinder in one step by press working, and the bearing hole and latching recess allow the stopper to close when the elevator shaft is lowered. Then, the elevating shaft is pulled up using the knob, and rotated at an appropriate angle to engage the elevating shaft in the latching recess, thereby holding the stopper in the raised and lowered state.

(Embodiment) An embodiment of this invention will be described below with reference to the drawings.

That is, the reference numeral 1 shown in the figure is a garbage receptacle 1 made of wire mesh.
It is formed into a shallow cylindrical shape with a flange-like mouth edge.

The rim of the opening is bordered by a rim 2, which is an annular metal plate with a U-shaped cross section, and its upper horizontal side extends a little length to the inner circumferential surface of the garbage receptacle 1. The dust receptacle 1 itself is formed to increase its strength.

Further, a through hole 3 is provided at the center of the bottom of the dust receiver 1, and a bearing fitting 11 is attached to this through hole 3.

A square lifting shaft 21 having a rubber plug 24 at the bottom and a knob 22 at the top is inserted into and attached to the bearing fitting 11.

The elevating shaft 21 forms a prismatic portion 23 with a square cross section up to approximately the middle portion, and a knob 2 is provided at the upper end of the prismatic portion 23.
2, a slightly thinner cylinder extends from the lower end of the square pillar, and an even thinner cylinder extends from the lower end of the cylinder. This narrowest cylinder is inserted into the center of the rubber stopper 24 with a disc-shaped support plate 25 interposed therebetween, and screwed from the opposite side with a screw 27 via a washer 26 to the lower end of the lifting shaft 21. A rubber stopper 24 is attached to the holder.

On the other hand, the bearing fitting 11 consists of a bearing cylinder 12 which is cylindrical with a bottom and has a flange 13 formed at its opening edge, and a locking cylinder 14 which is cylindrical and has a flange 15 formed at one of its opening edges. These are made of stainless steel plate as a corrosion-resistant material.

The bearing sleeve 12 has a lifting shaft 21 at its bottom.
A square bearing hole 16 through which the bearing hole 16 is inserted is opened by press molding. In that case, the bearing hole 16 is not completely punched out by press forming, but a hanging piece 17 is formed downward from the square hole on each side of the square, as shown in FIG. Squeeze and shape while bending to make a shape. Then, when the elevating shaft 21 is inserted into the bearing hole 16, the hanging piece 17 serves as a guide, allowing smooth vertical movement without much play.

In addition, the bottom outer surface of the bearing sleeve 12 has an appropriate angular phase with respect to the bearing hole 16, in fact.
A latching recess 18 for latching the elevating shaft 21 with a 45° phase shift is formed by press molding.

When installing the bearing fitting 11 in the through hole 3 of the dirt receiver 1, the cylindrical portion 1 of the locking tube 14 is inserted into the through hole 3.
9, insert this cylindrical portion 19 into the bearing sleeve 12.
As shown in FIG.
The metal mesh 4 of the dust receptacle 1 is sandwiched between the dust receptacles 1 and 5, and the bearing fitting 11 is attached to the dust receptacle 1. In this case, although not shown, the dust receptacle 1 wire mesh 4 may be inserted between the inner circumferential surface of the bearing sleeve 12 and the cylindrical portion 19 of the locking sleeve 14.

It goes without saying that the sink drain plug according to this invention is not limited to the embodiments described above.

[Effect of the invention] This invention constructed as described above has a through hole 3 drilled in the center of the wire mesh garbage receptacle 1 which is formed into a flange shape and reinforced by hemming the mouth edge with a rim 2. Hole 3
A bearing fitting 11 is attached to the bearing fitting 11, and a plug is provided at the bottom of the bearing fitting 11, and a knob 22 is provided at the top.
The bearing fitting 11 has a cylindrical shape with a bottom and a flange 13 formed on its opening edge, and a cylindrical shape with a flange 13 formed on one opening edge thereof. Locking cylinder 1 formed with 15
4, an angular bearing hole 16 through which the lifting shaft 21 is inserted is bored in the bottom of the bearing tube 12 by press molding, and an appropriate angular phase with respect to the bearing hole 16 is formed from the outer surface of the bottom. A retaining recess 18 for retaining the lifting shaft 21 is formed by press molding,
While inserting the cylindrical portion 19 of the locking tube 14 into the through hole 3, the cylindrical portion 19 is forcibly fitted into the bearing tube 12, and at least the flanges 13 and 15 of the bearing tube 12 and the locking tube 14 are connected to each other. By attaching the bearing fitting 11 with the wire mesh 4 of the dirt receptacle 1 sandwiched between them, the wire mesh portion receives dirt and water, etc. is quickly discharged, and the flange 13 This is intended to strengthen the structure.

When installing the bearing fitting 11, as shown in the figure, the bearing tube 12 is arranged so that the flange 13 comes into contact with the wire netting 4 from the inside of the wire mesh dust receptacle 1, and the cylindrical shape of the locking tube 14 is The portion 19 is passed through the through hole 3 from the outside and is forcefully fitted into the bearing sleeve 12, so that the wire mesh 4 is sandwiched between the respective flanges 13 and 15.

As a result, compared to the conventional method of attaching washers to the top and bottom of the through hole and caulking the bearing fittings from above, attaching the bearing fittings to the wire mesh dust receptacle, it is very easy and anyone can install the bearing fittings. However, it can be installed reliably.

Further, since the bearing hole 16 and the locking recess 18 can be formed in one step by press working on the bottom of the bearing tube 12, the manufacturing cost of the bearing fitting 11 can be significantly reduced.

Furthermore, in the case of a conventional casting product, it cannot be made of a corrosion-resistant material, but since the bearing fitting 11 has the above-mentioned shape, it can be made of a corrosion-resistant material such as a stainless steel plate. It does not get damaged and has excellent durability.

When the elevating shaft 21 is lowered using the bearing hole 16 and the latching recess 18, the discharge port is closed by the plug, and the elevating shaft 21 is pulled up using the knob 22 and rotated at an appropriate angle. This is the latching recess 18
Since the elevator shaft 21 is hooked to the stopper and the stopper is held in the raised and lowered state, together with the fact that the trash receptacle 1 is formed of the wire mesh 4, drainage can be done in a short time. Moreover, when the clogging occurs, the dirt can be easily shaken out.

As explained above, according to this invention, it is possible to drain water in a short time, and while it has the effect of making it possible to easily shake out the debris when a blockage occurs, it also has the effect of significantly reducing In addition to being able to reduce costs, this has practical effects such as being able to provide products with excellent durability.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a partially cutaway exploded perspective view, FIG. 2 is a front sectional view, and FIG. 3 is an enlarged sectional view of the mounting state of the bearing fitting. 1... Garbage receptacle, 2... Edge metal, 3... Through hole, 4...
... Wire mesh, 11 ... Bearing metal fitting, 12 ... Bearing tube, 1
3...flange, 14...locking tube, 15...flange, 16...bearing hole, 17...hanging piece, 18...
...Latching recess, 19...Cylindrical portion, 21...Elevating shaft, 22...Knob, 23...Prismatic portion, 24...
Rubber stopper, 25... Support plate, 26... Washer,
27...screw.

Claims (1)

[Scope of utility model registration request] A through hole is drilled in the center of the wire mesh garbage receptacle, which is reinforced by forming a flange shape with a rim around the mouth edge, and a bearing fitting is attached to this through hole. The bearing fitting has a cylindrical shape with a bottom and a flange formed on the opening edge, and a cylindrical shape with an opening on one side. It consists of a locking tube with a flange formed on the edge, and the bottom of the bearing tube is press-molded with a square bearing hole through which the lifting shaft is inserted. A locking recess for locking the lifting shaft is formed by press molding with an appropriate angular phase shift, and while inserting the cylindrical portion of the locking cylinder into the through hole, this cylindrical portion is inserted into the bearing cylinder. A drain plug for a sink, characterized in that a bearing metal fitting is installed in a state in which the wire mesh of the dirt receptacle is sandwiched between at least flanges of a bearing cylinder and a locking cylinder by force fitting.