JPS6325139B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for preventing splashing of a flush toilet.

As for flushing toilets, so-called flushing type, siphon type, and siphon jet type toilets with water storage are popular, and Japanese-style toilets with shallow water such as flushing type or flushing type, or Japanese style toilets with water retention are also widely used. It is used. In each of these toilets, and especially in seated toilets, splashing from the puddle during defecation is difficult to avoid, and splashing is extremely unpleasant. However, offsetting the advantages of flush toilets, the reality is that splashing is considered to be unpleasant but unavoidable. In the past, it has been proposed to install a saucer-like part in the toilet bowl or to use a floating object in order to prevent splashback, but this does not seem to have been implemented due to problems in practicality and effectiveness.

The above problems have been unexpectedly and substantially eliminated by the present invention. Therefore, according to the present invention, a running water curtain is applied (i.e., water is sprayed) at a position higher than the water level of the flush toilet bowl and lower than the rim portion around the toilet bowl, at least when solids are being excreted, so that the solids can fall. Provided is a method for preventing splashing of a flush toilet bowl, which is characterized by covering a space above a water collecting surface with a flowing water curtain and blocking splashing from the water collecting surface with the flowing water curtain.

The above-mentioned "running water curtain" means running water that spreads in a substantially planar or curved shape, that is, curtain-shaped running water. It was surprising to find that splashing from the pooled water surface, which was a major problem in the past, could be substantially blocked by a thin running water curtain. This blocking action is due to (a) the fact that the amount and energy of the splashing water are much smaller than the amount and energy of the flowing water of the flowing water curtain, and (b) the direction of the splashing water is changed by the flowing water. This is thought to be due to the mutual effect of According to the present invention, the rebound, which has hitherto been difficult to avoid, is easily eliminated by the relatively simple configuration of the present invention, and advantageous effects are achieved. In addition, since the flowing water curtain is a thin film of flowing water, no splashes or the like are generated when the solid material crosses it.

The above-described method of the present invention includes applying a flush curtain above the sump surface of the flush toilet at a point substantially lower than the rim portion around the toilet, at least at the sump surface where solid waste normally falls. By a splash-proof flush toilet equipped with a running water curtain equipment, characterized in that a water spraying equipment for a running water curtain covering the space above is installed, and a water source pipe connected to the water spraying equipment and an opening/closing pot are included. achieved. In addition, in the present invention, the structure of a conventionally known flush toilet can be applied or adopted for the parts other than the structure related to the flush curtain, and especially in the case of a flush toilet, this is likely to be possible more easily.
If necessary, those skilled in the art can easily modify or change the structure of the toilet bowl to better suit the present invention.

Typical embodiments of the present invention will be described below with reference to the accompanying drawings, but these specific examples are intended to explain the present invention in more detail, and the present invention is not limited thereby. It's not a thing. In addition,
Among currently popular flush toilets, there are so-called flush-type, siphon-type, siphon-jet, and flush-out type toilets, and in the present invention, a flush-type seated toilet will be described as a representative example. It is obvious that the present invention can be applied to other types of flush toilets in substantially the same way.

The water flow rate and water pressure of a water curtain to prevent splashing are practical within the range supplied by normal household water pipes (e.g. 13 mm), and the upper limit is restricted by the water curtain water discharge equipment, so there are no particular restrictions. Not done. In addition, it is convenient to install a water flow regulating valve or valve at an appropriate location in the piping in order to prepare for increases and decreases in water pressure or other adjustments. Naturally, the water source of the running water curtain can be connected to a water storage tank such as a flush tank if the flush tank has a large capacity or can store water quickly. Discharging water from a running water curtain can be easily achieved by means of a foot-operated, button-operated, and/or potted toilet installed under the toilet seat, for example.

A running water curtain is used to prevent splashing of water by blocking it with a curtain of running water. Therefore, the greater the thickness and flow velocity of the flowing water curtain, within the range where splashes are not generated, the greater the blocking ability. It is advantageous for the running water curtain to be located higher and farther away from the water level of the toilet bowl, since this reduces the kinetic energy of the splashing water. The water discharge direction of the running water curtain may be a substantially horizontal direction, that is, horizontally, diagonally downward, or diagonally upward. It is desirable that the direction in which the running water curtain falls into the toilet bowl or onto the water surface is appropriately oblique (rather than vertical) to avoid the possibility of small droplets.

The above-mentioned running water curtain can be constructed by using a water discharge device that can supply the width of the curtain to cover the desired range.
It can generally be formed, for example, by ejecting water through a slit (elongated opening).

Plan view of the flush toilet in Figure 1 and its A-
In the cross-sectional side view along line A' (Figure 2),
The present invention is achieved by applying a running water curtain 2 over the water collecting surface 3 of the toilet bowl 4 at least during solid matter excretion. The position where the running water curtain 2 is applied is
It is substantially lower than the rim portion 5 around the toilet bowl to prevent the human body from getting wet, and higher than the water reservoir level 3 to prevent splashing. The range covered by the flowing water curtain is at least the range where solid waste normally falls, and generally it is sufficient to cover the space above the water surface, and at the widest the range surrounded by the inner periphery of the rim 5. be.

FIG. 4 shows a schematic plan view of one embodiment of the slit pipe 1 for a flowing water curtain as a water curtain water discharging device, and FIG. 5 shows a schematic cross-sectional view taken along the line B--B'. The slit pipe may include a water portion 7, a slit portion 6, and at least one water supply pipe 8. The slit portion 6 may be joined or tightened using screws or the like, so that the gap between the slits can be adjusted. Water supply pipe 8
At least one end thereof may be threaded for attachment to a toilet bowl and/or connection to a water supply pipe. As the material for the slit tube, materials having corrosion resistance and strength that are common in the industry, such as stainless steel and/or chrome-plated brass, can be advantageously used.

FIG. 6 is a schematic plan view illustrating a structure in which the above-mentioned slit pipe is divided into two parts at the left and right sides of the water supply pipe 8 or at the left and right sides at the center. With this structure,
When attached to a ready-made toilet bowl, it is facilitated to bend and lengthen the slit tube to some extent at the bisected joint so as to substantially match the radius of curvature of the toilet bowl under the rim portion 5.

It is generally convenient for the slit pipe to be installed substantially below the rim portion 5 of the toilet bowl;
In this case, the installation location may be any location below the oblong rim portion 5, such as front, rear, left, right, diagonally, etc.
Alternatively, it may be installed over substantially the entire circumference of the rim portion. As illustrated in the plan view in Fig. 3,
For example, it is also effective to install two slit pipes 1, 1' on the left and right sides under the rim portion 5 to supply running water curtains 2, 2' vertically and doubly. Also, for example, a main running water curtain can be sprayed from the back of the toilet bowl, and a smaller running water curtain can be sprayed from the front of the toilet bowl to cover the area where the former running water curtain falls, thereby eliminating the possibility of small droplets caused by falling water. It is also possible to do so.

The water curtain of the present invention can achieve its effect by spraying water only when solid matter is being excreted, so water can be sprayed by installing a foot-operated and/or push-button type water dispenser at an appropriate part of the water pipe. It is possible. If you wish to constantly spray water while in use, you can install a water sprayer under the toilet seat or in a place where your body weight is placed, such as a footrest. Moreover, it is also possible to make the piping in which both the above-mentioned water discharging socket and the constant water discharging socket described above are installed together, switchable with a rotating socket or the like. Note that in each of the above cases, if necessary, it is also possible to employ a photoelectric type water discharging device that detects the excretion of solid matter.

The running water curtain water discharge device such as the slit pipe described above may be installed in the toilet bowl in any manner as long as the running water curtain of the present invention can be applied. For example, a hole may be provided in the wall of the lower portion of the rim portion 5 of the toilet bowl, and the water supply pipe 8, which is a slit pipe, may be inserted into the hole from the inside and secured with a nut from the outside. When adopting this aspect, depending on the structure of the toilet, it is convenient to install it at the rear of the toilet (for example, 1 in Figure 1) or on either the left or right side (for example, 1 in Figure 3) There are many. Drilling holes in the walls of ready-made flush toilets can be accomplished using a relatively slow rotary drill. In preparation for implementing the present invention, it is desirable to provide a toilet bowl with the above-mentioned mounting holes formed during molding as a product, and in this case, it is easy for those skilled in the art to design the toilet bowl to have a structure particularly suitable for attaching the slit pipe. be.

In manufacturing a toilet bowl, it is also a preferred embodiment to manufacture the components of the water curtain water discharge device other than the slit portions integrally with the toilet bowl using ceramics, and then attach the slit portions thereto. Although it requires technical precision, it is more preferable if the slit portion can also be manufactured substantially integrally with the toilet bowl from ceramics, metal, plastic, or the like.

An embodiment of attaching a slit pipe to a ready-made flush toilet without providing an attachment hole is illustrated in a plan view in FIG. 7. FIG. 8 illustrates a schematic cross-sectional view of the slit tube taken along line CC' in FIG. 7. In Figures 7 and 8, a mounting plate 10 with a flat connecting portion 8' between the slit pipe 1 and the water supply pipe 8 and mounting holes provided at both ends.
is fixed under the connecting part. This mounting plate 10 is inserted between the upper part of the rim portion 5 of the toilet bowl and the toilet seat (not shown as it is self-explanatory), and the toilet seat mounting hole 1 of the toilet bowl is inserted.
1 and secure with bolts and nuts. In addition,
In this embodiment, the rim part 5 is connected to the connecting part 8'
Then, it is surrounded by the water pipe 7.

Although the above-mentioned fixing method is for mounting on the rear rim portion of the toilet bowl, it can also be mounted on other rim portions by appropriately modifying this. For example, the mounting hole 12 that matches the toilet seat mounting hole 11
The arm of the mounting plate 10 having the
As illustrated in the schematic plan view in the figure, a slit pipe can be installed in the lateral part of the rim part 5 in the same manner as in the above embodiment by fixing the connecting part 8' thereto. Further, as illustrated in the schematic front view of FIG. 10, by fixing a mounting plate 10 having mounting holes 12 on both sides to the connecting pipe 8' at the upper part of the water area 7 of the slit pipe, the rim can be fixed. It is also possible to fasten the slotted tube to the rim part through corresponding holes in the longitudinal direction of the part 5 using bolts and nuts.

Next, an embodiment in which the slit pipe 1 for a running water curtain is installed on the toilet seat 20 of a toilet bowl will be illustrated. In the plan view of FIG. 11 and the side view of FIG. 12, a normal toilet seat is made up of a toilet seat plate 20 and a rotary attachment part 21 of the toilet seat, but the above embodiment of the present invention has a bottom rear part of the toilet seat plate 20. The toilet seat further includes a slit pipe 1 protrudingly attached to the slit pipe 1, a water supply pipe 8 connected to the slit pipe 1 and extended to the side edge of the toilet seat plate, and a rotatable connecting pipe 19 rotatably connected to the water supply pipe 8. In addition, the above-mentioned toilet seat attachment part 21, the connecting end of the water supply pipe 8, and the rotatable pipe 19 must be installed on the same rotation axis, and in this way, when the toilet seat 20 is raised and lowered, the water is in communication with the water supply pipe 8. It is possible.

Connect the slit tube to the central front end of the toilet (i.e. the first
An example of a mode in which it is installed under the water area (A' side end of line A-A' in the figure) is illustrated. In the side sectional view of FIG. 13 (cross section taken along line EE' in FIG. 14) and the plan sectional view of FIG. 14 (cross section taken along line D-D' in FIG. Place the gaskets 23 on the top and bottom of the toilet utensil 24 that has been installed, and then
Tighten and fix with step 2. In this case, the fan-shaped slit pipe for the water curtain is preferably one having an acute radial water discharge angle of usually about 30° to about 80°.

[Brief explanation of the drawing]

FIG. 1 is a plan view illustrating a flush toilet equipped with a slit pipe for a running water curtain. FIG. 2 is a cross-sectional side view taken along the line AA' in FIG. 1. FIG. 3 is a plan view illustrating a different aspect from FIG. 1. FIG. 4 is a schematic plan view illustrating a slit pipe for a running water curtain. FIG. 5 is a schematic side view of a cross section taken along line BB' in FIG. 4. The sixth is a schematic plan view of a slit pipe illustrating another embodiment. FIG. 7 is a schematic plan view illustrating a mode in which a slit pipe for a running water curtain is attached from the outside. Figure 8 is the 7th
FIG. 2 is a schematic side view of a cross section of the slit tube shown in the figure taken along line CC'. FIG. 9 is a schematic plan view of another embodiment of the slit tube. FIG. 10 is a schematic front view of a slit tube in yet another embodiment. Figures 11 and 12 are a plan view and a side view, respectively, illustrating an embodiment of the slit pipe installed in the toilet seat. 13 and 14 are a side sectional view and a plan sectional view, respectively, illustrating an embodiment of a fan-shaped slit pipe for a running water curtain. 1... Slit pipe for running water curtain, 2... Running water curtain, 3... Water surface, 4... Flush toilet, 5...
...Rim part, 6...Slit part of slit pipe,
8... Water supply pipe, 10... Mounting plate.

Claims (1)

[Claims] 1. At a position higher than the water surface of the flush toilet and lower than the rim around the toilet bowl, at least when discharging solid objects, a running water curtain is sprayed to cover the space above the water surface where the solid objects fall, and A method for preventing splashing of a flush toilet, characterized by blocking splashing from the water surface by the running water curtain.