WO1994008104A1

WO1994008104A1 - Water closet flushing device which, on release of a quantity of water, causes overpressure in the bowl

Info

Publication number: WO1994008104A1
Application number: PCT/FR1993/000920
Authority: WO
Inventors: Raymond Denance
Original assignee: Raymond Denance
Priority date: 1992-09-28
Filing date: 1993-09-21
Publication date: 1994-04-14
Also published as: FR2696200B1; AU4823893A; FR2696200A1

Abstract

A water closet flushing device operates by releasing a quantity of water (12), thereby causing overpressure in the hermetically closed bowl (1). The flushing device comprises a control push button means (9), means (10) for transmitting the push button (9) movement, said movement transmission means (10) acting to control the movable assembly (11) of the flushing unit (13) whose base is provided with a valve which actuates the water release plug (12), a sealing means (36) providing a seal between the bowl (1) and the transmission means (10), a return spring (14) urging back the mechanism when the button (9) is not depressed. Application in water closets.

Description

"Device for maneuvering the flush of a W.C., the release of the water column puts the bowl overpressure"

The subject of the invention is a device for controlling the flushing of a toilet, the release of which from the water column puts the bowl under pressure.

The state of the art can be defined by patent application No. 90 15543 of the same author, filed on December 10, 1990, published under No. 2.670.225. This patent describes a toilet of the type comprising a bowl, a flushing toilet, a siphon, a flap and possibly a seat, characterized in that the release of the column of flushing water overpressures the bowl whose the flap and possibly the seat are provided with means making the closure of the seat flap hermetic on the edge of the bowl, only when said bowl is overpressure and that said flap comprises a means of blocking its opening in the closed position hermetic, so as to resist said overpressure. 1

Other so-called "marine" cabinets use the vacuum created by a pump to introduce the rinsing water and evacuate the used water. In this case, the seat and possibly the seat are waterproof to use the vacuum during pumping. Due to the particular conditions of these cabinets, it is necessary to use valves, a vacuum pump, the use of the valves must be carried out successively and in a precise order, specific pipes are provided for this type of cabinet.

GB-1.536. 773 describes a cabinet comprising a cover, a seat and a bowl which becomes watertight when the cover is closed and which has a flushing liquid inlet, a sealed ring-shaped element which must be compressed between the cover and the seat or between the seat and the bowl, being housed in an endless notch located in the 'one of the two said members, the notch having a base and an internal wall which delimit a recess, which is of cross section of cuneiform type, the cross section of the element being practically quadrilateral, this quadrilateral having an acute angle which placed in the recess, the opposite corner having a flexible lip situated in the diagonal of the quadrilateral and projecting from one side of the element, so as to be able to engage the other of the two said members, a pump being provided for evacuating the excrement from the bowl and to create a partial vacuum inside which must cause the spontaneous entry of the rinsing liquid by the arrival of liquid in the bowl.

FR-A-948-782: This patent describes a device for flushing a tank supplying a sanitary appliance or the like.

The water column does not overpress the bowl, the flap-seat-bowl closure is not waterproof. FR- A- 2. 11.348: this patent describes a drain valve for connection to an orifice provided on the bottom side of a tank containing flushing water or water for washing in railroad cars. There is no overpressure of the bowl. FR-A-2.572. 919: the invention relates to a device for quickly cleaning a WC seat by chemical and mechanical action. It consists of a WC seat incorporating a pump connected by a channel to a tank of sanitary liquid. When the cover is brought down on the seat, a projection secured to the cover presses on the pump piston releasing a dose of sanitary product. The cover incorporates a swivel joint on itself, in which slides the handle of a toilet brush extended by its hedgehog head.

The W.C. according to the invention is of the type operating under overpressure as described in patent application No. 90 15543, filed on December 10, 1990 published under No. 2,670,225.

To this end, the flushing device must be able to be actuated only if the seat and the flap are folded down on the bowl. In addition, the operating mechanism must not create pressure losses which would reduce the overpressure in the bowl.

To this end, the device for operating the toilet flush operating by releasing the water column which puts the bowl overpressure, the closing flap-seat-bowl or flap-bowl, is hermetic, is characterized. by the fact that it includes

- A means acting as an operating push button, - a means of transmitting the movement of said operating push button, said movement transmitting means acts to operate the mobile flush assembly, the base of which is provided with a valve which activates the drain which releases the water column

- A sealing means, which seals between the bowl and the means of transmitting the movement to said operating push button, so as to keep the closure of the toilet seat closed. - A means acting as a return spring recalls the mechanism when the button is not pressed.

The transmission means is a cable, one end of which is connected directly or indirectly to said operating push button and the other end of which is secured to the base of the axis of the pull column around which the mobile assembly coaxially moves. flushing. Said cable is sheathed.

Said sealing means is a tubular sleeve mounted sliding in the overflow column, open at its base by forming a cone which corresponds to the opening of the base of the overflow column of the mobile assembly, and closed at its upper end by a cover provided with an orifice which allows the passage of the operating cable towards the base of the axis of the pull column. The cable is stripped of its sheath when it is located in the upper part of the tubular sleeve. It is also provided at this level with a coaxial washer which is fixed to said cable and which allows to drive or not, in the cable maneuvers, the tubular sleeve in which it slides. The push button acts directly on the operating cable.

The push button acts by means of a return lever. According to one embodiment, said maneuvering push button is accessible only if the flap is folded over the seat of the bowl.

According to one embodiment, the operating push button is placed at the front part of the flap so as to be in contact with the bezel of the bowl and to be able to be actuated by the user simply by exerting pressure on said flap.

In this embodiment, the force of the return spring of the mechanism placed at the level of the operating push button is greater than the force exerted by the weight of the flap, so that the flap remains ajar on the edge of the bowl ensuring air circulation when the button is not pressed.

According to another embodiment, the push button is placed between the hinge of the flap and the flush so that it can only be operated when the flap is folded over the seat of the bowl.

In this embodiment, the flap has a weight significantly greater than the weight of the water column contained in the flush tank and this, so as not to rise when the column d is released. water which puts the bowl overpressure and this each time the operating push button is placed independently of the flap.

The column-puller axis which can slide in the hole provided for this purpose in the cover of the overflow column, is provided at its upper end with a nut washer when the push button controls the opening and closing of the flush.

Without nut washer at the level of the column-puller axis, the push button controls only the opening of the flush, the closing is carried out in a conventional manner after the complete emptying of the water reserve.

The sheath and the cable pass in a groove provided in the joint of the bowl arranged between the bowl and the flush. According to another preferred embodiment, the face interior of the flap, that is to say oriented towards the bowl, forms a bulge so as to reduce the volume of the bowl so that the pressure is as strong as possible when the water column falls into the bowl. The device according to the invention has the advantage of being able to adapt to current toilets, the flushing of which rests on the bowl. In order to use the same flush tank, the mechanism is put in place as well as the flap, the operating push button and the transmission cable. A height-adjustable riser sleeve allows the opening of the new drain to be adjusted to the correct height. Indeed, the tank, with the old mechanism, needs to operate about ten liters of water; with the device according to the invention about four liters of water are required. The booster sleeve, not shown in the drawings, makes it possible to adapt this variation in the "volume of water used" compared to the "volume of water provided" for an old model tank. There is thus thus "a volume of unused residual water", only a small volume of water (four liters) is used with the device according to the invention.

The arrival of water in the tank ensures the normal mixing of the water volume to prevent an unused part from being stagnant.

The attached drawings are given as indicative and non-limiting examples. They represent a preferred embodiment according to the invention. They will allow the invention to be easily understood.

Figure 1 is a general view of the device installed on a toilet Figure 2 is a sectional view along the axis BB shown in Figure 1 highlighting the push button when the user does not press the flap.

Figure 3 is a view according to Figure 2, but where the user presses the flap. Figure 4 is a general view of another embodiment where the operating push button is disposed between the hinge of the flap and the flush.

Figure 5 is a detail view of the push button according to the embodiment shown in Figure 4 Figure 6 is a view of the mechanism of the device called "impulse" controlling the closing and opening, in the rest position.

FIG. 7 is a view according to FIG. 6 in the limit position for triggering the opening of the drain and when the seal is ensured in the bottom opening of the overflow column.

Figure 8 is a view according to Figure 6 in the open position of the valve of the plug which allows the evacuation of the water column.

Figure 9 is a view of another embodiment where the operating pushbutton controls only the opening of the plug, the closing being effected in a conventional manner after the evacuation of the desired volume of water from the column d water, in this figure said button is in the rest position.

Figure 10 is a view according to Figure 9 where the button is in the open position of the flush valve.

FIG. 1 is a general view showing the assembly of a W.C. The bowl 1, with its siphon 2, and its discharge orifice 3.

The seat 4 on which the seat 5 is folded down. On the seat 5, the flap 6 is folded down.

A hermetic seal 8 seals the closure between the seat 4 and the seat 5.

Another seal 7 seals between the seat 5 and the flap 6.

The front part of the flap 6 is provided with a means acting as an operating push button 9. The action of this said operating push button 9 is transmitted by a movement transmission means 10 which acts to operate the mobile assembly 11 for the flush 13 whose base of said mobile assembly is provided with a valve which actuates the plug which releases the water column 12. A sealing means 36 ensures the sealing between the bowl 1 and the means for transmitting the movement to said operating button 9 so as to seal the flap closure 6, seat 5 and bowl 1.

A spring acting means 14 recalls the mechanism when button 9 is not pressed.

The transmission means 10 is a cable 10, one end 15 of which is connected directly or indirectly to said operating button 9 and the other end 16 of which is secured to the base of the axis of the pull column 17 around which coaxially moves. the movable assembly 11 of the flush 13.

The cable 10 is sheathed with a sheath 18.

Said sealing means 36 is a tubular sleeve 36 slidably mounted in the overflow column 19 of the movable assembly 11. Said tubular sleeve 36 is opened at its base by forming a cone which corresponds to the opening 20 of the base of the overflow column 19. Said sleeve 36 is closed at its upper end by a cover provided with an orifice which allows the passage of the operating cable 10 towards the base of the axis of the pull column 17.

The cable 10 is stripped of its sheath 18 when it is located in the upper part of the tubular sealing sleeve 36. It is also provided at this level with a coaxial washer 21 which is fixed to said cable and which makes it possible to drive or not, in the maneuvers of cable 10, the tubular sleeve 36 in which it slides.

In the embodiment shown in Figures 1, 2 and 3, the operating push button is placed in the front part of the flap. The user need only press the flap 6 to activate the flush. It can only actuate the operating button 9 when the flap 6 is closed on the seat 5 of the seat 4 of the seat 1.

In the embodiment shown in Figures 4 and 5, the operating push button 22 is placed between the hinge of the flap 6 and the flush 13. In this embodiment, the button 22 acts on the end 15 on side 10 by means of an articulated lever 23. There is also the return spring 14 disposed at the end 24 of the cable 10. The arrows shown in FIGS. 4 and 5 highlight the actions of the button operating button 22.

Apart from the operating button and the transmission means, the flushing mechanism is identical to the two embodiments.

It is also obvious that it is possible to place the operating button and the transmission means differently, without departing from the scope of the invention.

Figures 6, 7 and 8 show the device according to the invention in which said device is said to be "impulse", that is to say that the operating button controls the opening and closing of the plug 25 of the flush 13. The opening is actuated only if the operating push button 9, 22 is pressed; as soon as the latter is released, the plug 25 closes the discharge port 26 for the flushing water 13. The flush 13 has an opening 26 above which the said flush is mounted. 13.

This flush 13 is provided, in a conventional manner, with a fixed chamber 37 which communicates through holes 27 with the water column 12. The flush tank 13 and this fixed chamber 37 have a coaxial orifice which comes opposite the inlet orifice 28 in the bowl 1. This assembly is fixed by holding means (nut-against nut) and the seal is ensured by a bowl seal 29.

In the fixed chamber 37, a movable assembly 11 is mounted which consists of an overflow column 19.

In its lower part, the overflow column 19 is provided with the drain itself 25, with a drain seal 30 held by a nut 31. When the movable assembly 11 is in the low position, as shown in FIG. 6, the seal 30 of the bung 25 comes opposite a threshold 32, provided for this purpose in the fixed chamber 37.

Above the bung 25 is the usual float 33.

The upper end of the overflow column 19 is closed by a cover 34, pierced with an orifice 35 which allows the entry of water through this overflow and the sliding of the axis of the pull column 17.

In this embodiment where the device is said to be "impulse", the upper part of the axis of the pull column 17 is fitted with a nut washer 38 which is arranged above the cover 34 and above of the overflow column 19.

In the lower part of the flush 13, the cable 10 and its sheath 18 pass through an orifice provided for this purpose in the bowl joint 29.

The mechanism of the embodiment shown in Figures 6, 7 and 8 is the following.

In Figure 6, the device is at rest. The return spring 14 is such that it raises the operating push button 9, 22 and that it slightly raises the flap 6 for this type of embodiment. The drain valve, formed by the seal 30 and the drain 25, closes the orifice 26. The water column 12 is retained in the flush 13.

In FIG. 7, the device is at the limit of the triggering of the release of the water column, the push button 9, 22 for maneuvering has been pressed and the start of the race causes the tubular sleeve 36 to rise vertically which comes to close the opening 20 of the base of the overflow column 19 by its cone. Sealing is thus ensured between the flush 13 and the bowl 1. Since the air cannot escape through the overflow column 19, the tubular sleeve 36 rises vertically, driven by the cable 10 and the washer 21 coaxial with the cable 10, as well as the axis of the pull column 17 which partially emerges from the upper end of the overflow column 19.

Continued movement of the cable 10 along the arrow FI causes the movable assembly 11 to be raised, that is to say, the overflow column 19, the drain 25 and the drain seal 30 according to the arrows F 2.

As soon as the drain seal 30 is detached from the threshold 32 of the fixed chamber 37, the water column 12 is released and falls into the bowl 1 causing a sudden and significant overpressure with the technical advantages described in the previous patent application invention of the same author.

At any time, whether the water column 12 is completely evacuated or not, as soon as the user ceases to exert pressure on the operating button 9, 22, the return spring 14 recalls the cable 10 which, because of the solidarity of its end 16 with the axis of the pull column 17 causes the latter in a downward movement, as indicated by the arrows F3 and due to the presence of the nut washer 38, this also causes the lowering of the mobile assembly 11 which closes, by the seal 30 of the plug 25, the orifice 26 for discharging the water from the flush 13.

This so-called impulse device makes it possible to dose the necessary volume of the water column 12 to be used at will. Figures 9 and 10 show another embodiment where the device operates in "all or nothing".

This device includes all the technical characteristics of the embodiment, except the nut washer 38 which is absent. FIG. 9 shows this device in the rest position when the operating push button 9, 22 is not pressed.

Figure 10 highlights the device when the operating push button 9, 22 is pressed.

As soon as the user releases his pressure on said button 9, 22, the return spring 14 recalls the cable 10 which lowers the tubular sleeve 36 and the axis of the pull column 17. Due to the absence of nut washer 38, the mobile assembly 11 (overflow column 19, drain 25, drain seal 30) does not descend under the action of the return spring 14, but only when the entire water column 12 is discharged . At this stage, by simple gravity, the movable assembly 11 descends and the seal 30 of the bung 25 closes the orifice 26. In this case, the closure is carried out in a conventional manner, it is not possible to dose the volume of water required by the user, the user uses "all or nothing".

According to another embodiment, not shown in the figures, the flush may include a volume of water forming the so-called active water column and another volume of non-active water which is not discharged but which is present only to increase pressure when the bowl is overpressure.

As shown in Figures 1 and 4, the inner face of the flap 6, that is to say oriented towards the bowl 1, forms a bulge 39 so as to reduce the volume of the bowl 1 so that the pressure is as strong as possible when the water falls into the bowl 1. REFERENCES

1. Bowl

2. Siphon

3. Evacuation port 4. Scope

5. Headquarters

6. Toilet seat

7. Hermetic seal

8. Hermetic seal 9. Operation push button

10. Control cable

11. Mobile assembly

12. Water column

13. Flush 14. Spring

15. Cable end

16. Cable end

17. Zipper column

18. Sheath 19. Overflow column

20. Opening

21. Coaxial washer

22. Maneuver push button

23. Articulated lever 24. Cable end

25. Drain

26. Evacuation opening

27. Holes

28. Inlet opening 29. Cup seal

30. Drain seal

31. Nut

32. Threshold

33. Float 34. Lid

35. Orifice

36. Sealing medium - Tubular sleeve

37. Fixed room 38. Nut washer

39. Bulge

Claims

1. Device for maneuvering the toilet flush operating by releasing the water column which pressurizes the bowl, the closing flap-seat-bowl or flap-bowl, is hermetic, said device being composed of 'means acting as an operating push button (9), of a movement transmission means of said operating push button (10), said movement transmission means (10) acts to operate the mobile assembly (11) toilet flush (13), the base of which is provided with a rubber valve which actuates the plug (30) which releases the water column (12), characterized in that it comprises:

- a sealing means which seals between the bowl (1) and the transmission means (10) of the movement to said operating push button (9) so as to keep the flap closure (6) / bowl (1 ).

- A means acting as a return spring (14) recalls the mechanism when the button is not pressed.

2. Device for operating the toilet flush, according to claim 1, characterized in that the transmission means is a cable (10), one end (15) of which is connected directly or indirectly to said operating push button (9) and whose other end (16) is integral with the base of the axis of the pull column (17) around which coaxially moves, the movable assembly (11) of the flush (13 ).

3. device for operating the toilet flush, according to claim 1, characterized in that said sealing means is a tubular sleeve (36) slidably mounted in the overflow column (19), open to its base forming a cone which corresponds to the opening of the base of the overflow column (19) of the mobile assembly (11), and closed at its upper end by a cover (34) provided with an orifice which allows the passage of the operating cable (10) to the base of the axis of the pull column (17).

4. Device for operating the toilet flush, according to claim 2, characterized in that the cable (10) is stripped of its sheath (18) when it is located in the upper part of the tubular sleeve (36).

5. Device for operating the toilet flush, according to claim 2, characterized in that it is provided at this level with a coaxial washer (21) which is fixed to said cable (10) and which allows to drive or not, in the cable maneuvers, the tubular sleeve (36) in which it slides.

6. Device for operating the toilet flush, according to claim 1, characterized in that the said operating push button (9) is accessible only if the flap (6) is folded back on the seat ( 4) bowl d).

7. Device for operating the toilet flush, according to claim 1, characterized in that the operating push button (9) is placed at the front part of the flap (6) so as to be in contact with the bezel (4) of the bowl (1) and able to be actuated by the user simply by exerting pressure on said flap (6).

8. device for operating the toilet flush, according to any one of claims 6 or 7 characterized in that the force of the return spring (14) of the mechanism, disposed at the operating push button ( 9), is greater than the force exerted by the weight of the flap (6).

9. Device for operating the toilet flush, according to claims 1 or 6, characterized in that the push button (22) is placed between the hinge of the flap (6) and the toilet (13) so as to be able to be maneuvered only when the flap (6) is folded over the seat (4) of the bowl (1).

10. Device for operating the toilet flush, according to claim 9, characterized in that the operating push button (22) is placed independently of the flap, the flap (6) has a clearly marked weight. greater than the weight of the water column contained in the flush tank.

11. Device for operating the toilet flush, according to claim 3, characterized in that that the column-pull axis (17) which slides in the hole provided for this purpose in the cover of the overflow column (19), is provided at its upper end with a nut washer when the push button controls the opening and closing the flush (13).

12. Device for operating the toilet flush, according to claim 3, characterized in that without the nut washer at the level of the column-puller axis (17), the push button controls only the opening of the flush (13), the closing is carried out in a conventional manner after the complete emptying of the water reserve (12).

13. Device for operating the toilet flush, according to claim 1, characterized in that the sheath (18) and the cable (10) pass in a groove provided in the joint of the bowl disposed between the bowl (1) and the flush (13).

14. Device for operating the toilet flush, according to claim 1, characterized in that the inner face of the flap (6), that is to say oriented towards the bowl (1) forms a bulge (39) so as to reduce the volume of the bowl (1) so that the pressure is as strong as possible when the water column falls

(12) in the bowl (1).

15. Device for operating the toilet flush according to claim 1, characterized in that it comprises a height-adjustable booster sleeve which makes it possible to adjust the opening of the new plug to the appropriate height; the booster sleeve makes it possible to adapt this variation in the "volume of water used" compared to the "volume of water provided" for an old model tank.