GB2493550A - Close coupling plate for a toilet pan and cistern - Google Patents
Close coupling plate for a toilet pan and cistern Download PDFInfo
- Publication number
- GB2493550A GB2493550A GB1113841.9A GB201113841A GB2493550A GB 2493550 A GB2493550 A GB 2493550A GB 201113841 A GB201113841 A GB 201113841A GB 2493550 A GB2493550 A GB 2493550A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- text
- close coupling
- coupling plate
- plate according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000008878 coupling Effects 0.000 title claims abstract description 28
- 238000010168 coupling process Methods 0.000 title claims abstract description 28
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 28
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims abstract description 4
- 230000000712 assembly Effects 0.000 claims 2
- 238000000429 assembly Methods 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 5
- 239000010959 steel Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D1/00—Water flushing devices with cisterns ; Setting up a range of flushing devices or water-closets; Combinations of several flushing devices
- E03D1/24—Low-level flushing systems
- E03D1/26—Bowl with flushing cistern mounted on the rearwardly extending end of the bowl
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
- E03D11/00—Other component parts of water-closets, e.g. noise-reducing means in the flushing system, flushing pipes mounted in the bowl, seals for the bowl outlet, devices preventing overflow of the bowl contents; devices forming a water seal in the bowl after flushing, devices eliminating obstructions in the bowl outlet or preventing backflow of water and excrements from the waterpipe
- E03D11/13—Parts or details of bowls; Special adaptations of pipe joints or couplings for use with bowls, e.g. provisions in bowl construction preventing backflow of waste-water from the bowl in the flushing pipe or cistern, provisions for a secondary flushing, for noise-reducing
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Biological Wastes In General (AREA)
- Sink And Installation For Waste Water (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
A close coupling plate for a toilet pan and cistern combination is formed with ridges 1-5 to strengthen the mild steel plate. These ridges allow thinner gage steel to be used and still guarantee a leak free seal. The ridges form depressions on the obverse face of the plate. Various configurations of ridges can be envisaged. The plate may be manufactured by stamping.
Description
Close Coupling Plates This invention relates to coupling plates for close coupled toilet pan and cistern arrangements.
These plates are normally made from 2.5 to 3 millimeters thick mild steel and are roughly elliptical with approximately 165 mm larger diameter and approximately 105 mm the shorter diameter. The perimeter may be rounded, i.e. elliptical or straightened out into a flattened hexagon. The plates are punched out of sheet steel with the precise dimensions varying according to the cistern/pan combination they are destined for. The ends of the larger diameter typically have slots cut into them for location of the coupling bolts on either side of the cistern drain pulling the plate and hence the cistern firmly onto the toilet pan.
The plates are normally flat, but may have raised ends around the bolt slots to accommodate the bolt heads, depending on the shape of the cistern bottom. The plates have a suitably sized hole through the middle, accommodating the cistern drain pipe.
A suitably sized rubber or foam ring fits around the drain to form a watertight seal between the coupling plate and the toilet pan.
The invention was born out of the recent substantial rise in price of steel and hence of steel products. The invention has found a way of saving material without compromising the strength of the coupling plate. The invention allows the thickness of the plate to be reduced to 1.5 mm and still guarantee a leak free seal. This means that the material costs can be reduced by approximately half, with only a minimal increase in the cost of manufacture of the plate.
The required strength of the plate is achieved by forming a depression around the drain hole of roughly the same shape so that a ridge is formed on one face of the plate and a depression on the other. Further ridges/depressions are formed along the long sides of the elliptical plates from the bolt slots towards the middle of the plate roughly equidistant from the edge of the plate. These latter depressions/ridges may be continuous along each long side of the plate, all the way across from fixing slot to fixing slot. The depressions are suitably formed during the same operation which punches the plates out of the steel sheets.
Typically, the outer ridges are formed about 10mm from the edge of the plate and the ridge around the drain pipe hole is about 12 mm from the edge of that hole. These dimensions will vary with the arrangement of the ridges themselves and will depend on whether the outer ridge is continuous or in sections.
For a more detailed description of the invention, reference is made to the drawings.
Fig I shows the basic realization of the invention, and Figs 2 to 4 show different washer arrangements on the section "A-A" in fig I Fig 5 shows the washer arrangement on section "B-B" in fig 1 Fig 6 shows an alternative arrangement of the strengthening ridges/depressions.
Fig 7 shows yet another realization of the invention.
The basic realization of the invention is shown in fig 1. Five separate ridges are formed on the plate. Two at each narrow end of the plate stretching approximately parallel to the plate edge towards the center hole and the fifth being ring shaped around that centre hole. The short ridges (1, 2, 3, 4) are designed to strengthen the flanges which locate the fixing bolts.
These flanges may be raised out of the plane of the plate to accommodate the heads of the fixing bolts if the pan construction requires it. The ring ridge (5) has two firnctions, firstly to locate the seal (6) around the drain hole and secondly to strengthen the plate in the area of the seal and reduce bending in that area.
Figures 2 to 4 show the section "AA" with different possible positions of the seal depending on the type and size of seal used.
Fig 2 shows a round cross section seal ring positioned between ridge 2 and ring ridge 6.
Figures 3 and 4 show a square cross-section seal placed in position according to its diameter.
Figure 5 shows the plate in cross-section through "BB", the middle line of the small diameter of the plate. It illustrates the possible positioning of a round cross section ring seal.
Figure 6 and 7 show alternative realizations, where the pairs of ridges on each of the long sides of the plate are interconnected to stretch substantially along the whole length of the long side of the plate, and on fig 7 a double ring ridge is formed around the drain hole.
Evidently, the exact position of the various ridges will depend on the exact requirements for the type of toilet arrangement the plate is destined for. Moreover, the depth of the grooves -or height of the ridges-will vary according to the strength of the material used. The invention is not limited by such minor variations in realization. Many other configurations of ridges may be contemplated and all form part of the invention.
Claims (11)
- <claim-text>Claims 1. A close coupling plate for close coupled cistern/pan assemblies characterized by at least one ridge formed on one face of the plate.</claim-text> <claim-text>2. A close coupling plate according to claim 1 characterized in that the at least one ridge surrounds the cistern drain pipe hole.</claim-text> <claim-text>3. A close coupling plate according to claim 2 characterized in that it has 4 more ridges, each extending from a narrow end of the plate towards the at least one ridge surrounding the drain pipe hole.</claim-text> <claim-text>4. A close coupling plate according to claim 2 characterized in that it has two more ridges extending across the long sides, along the edge of the plate and pass on the outside of the at least one ridge surrounding the cistern drain hole.</claim-text> <claim-text>5. A close coupling plate according to claim 2 characterized in that bolt slots at the ends of the longer diameter are raised out of the plane of the plate to accommodate the heads of the fixing bolts.</claim-text> <claim-text>6. A close coupling plate according to claim 2 characterized in that a continuous ridge is formed all around the perimeter of the plate.</claim-text> <claim-text>6. A close coupling plate according to claim 3 characterized in that the formation of the ridges creates depressions on the opposite face of the plate.</claim-text> <claim-text>8. A close coupling plate according to anyone of the previous claims, characterized in that the plate is stamped out of mild steel plate.</claim-text> <claim-text>9. A close coupling plate according to anyone of the previous claims, characterized in that the plate is stamped out and formed in one single operation.</claim-text> <claim-text>10. A close coupling plate according to anyone of the previous claims, characterized in that the plate is stamped out and formed in two separate operations.Amendments to the Claims have been filed as follows:CLAIMS1. An elliptical close coupling plate for close coupled cistern/pan assemblies comprising a central circular hole for the passage of a cistern drain pipe, which hole is surrounded by a circular ridge formed on one face of the plate with a corresponding depression on the other face and further comprising at least one additional straight or curved ridge with a corresponding depression on the opposite face of the plate, both emanating from substantially near the circular ridge and corresponding depression towards one of the narrow ends of the elliptical plate and following the edge of the plate at a distance of at least 2 mm.
- 2. A close coupling plate according to claim I wherein four such additional ridges and corresponding depressions radiate out from the vicinity of the central circular ridge/depression towards the narrow ends of the plate.
- 3. A close coupling plate according to claim 2 comprising two concentric circular ridges and corresponding depressions around the central hole.
- 4. A close coupling plate according to claim 2 wherein the additional ridges and corresponding depressions are merged into one continuous ridge/depression around the r edge of the plate at a distance from that edge of at least 2mm.0
- 5. A close coupling plate according to claim I wherein the narrow ends of the plate comprise v" slots for attachment bolts.r
- 6. A close coupling plate according to claim 5 wherein the boh slots at the narrow ends of the 04 plate are raised out of the plane of the plate to accommodate the heads of the attachment bolts.
- 7. A close coupling plate according to claims 1 to 5 wherein the plate is in the shape of a flattened hexagon.
- 8. A close coupling plate according to claim I to 4 wherein the formation of all ridges creates corresponding depressions on the opposite face of the plate.
- 9. A close coupling plate according to anyone of the previous claims wherein the plate is stamped out of mild steel plate.
- 10. A close coupling plate according to anyone of the previous claims, whereiii the plate is stamped out and the ridges and corresponding depressions are formed in one single stamping operation.
- 11. A close coupling plate according to anyone of claims ito 9 wherein the plate is stamped out and the ridges and corresponding depressions are formed in two separate stamping operations.</claim-text>
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1113841.9A GB2493550B (en) | 2011-08-11 | 2011-08-11 | Close coupling plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1113841.9A GB2493550B (en) | 2011-08-11 | 2011-08-11 | Close coupling plates |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201113841D0 GB201113841D0 (en) | 2011-09-28 |
| GB2493550A true GB2493550A (en) | 2013-02-13 |
| GB2493550B GB2493550B (en) | 2013-09-11 |
Family
ID=44764351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1113841.9A Expired - Fee Related GB2493550B (en) | 2011-08-11 | 2011-08-11 | Close coupling plates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2493550B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB560444A (en) * | 1943-01-12 | 1944-04-04 | Twyfords Ltd | Improvements relating to means for connecting flush pipes to the inlets of water-closet basins |
| GB787817A (en) * | 1955-09-12 | 1957-12-18 | Shanks & Company Ltd | Improvements in or relating to means for attaching a flushing cistern to a closet ina close-coupled closet set |
| US3142845A (en) * | 1963-06-21 | 1964-08-04 | Mansfield Sanitary Inc | Close-coupled tank to water closet |
-
2011
- 2011-08-11 GB GB1113841.9A patent/GB2493550B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB560444A (en) * | 1943-01-12 | 1944-04-04 | Twyfords Ltd | Improvements relating to means for connecting flush pipes to the inlets of water-closet basins |
| GB787817A (en) * | 1955-09-12 | 1957-12-18 | Shanks & Company Ltd | Improvements in or relating to means for attaching a flushing cistern to a closet ina close-coupled closet set |
| US3142845A (en) * | 1963-06-21 | 1964-08-04 | Mansfield Sanitary Inc | Close-coupled tank to water closet |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2493550B (en) | 2013-09-11 |
| GB201113841D0 (en) | 2011-09-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20150811 |