WO1981000602A1 - A fastening device for fixing sanitary ware - Google Patents

A fastening device for fixing sanitary ware Download PDF

Info

Publication number
WO1981000602A1
WO1981000602A1 PCT/SE1980/000209 SE8000209W WO8100602A1 WO 1981000602 A1 WO1981000602 A1 WO 1981000602A1 SE 8000209 W SE8000209 W SE 8000209W WO 8100602 A1 WO8100602 A1 WO 8100602A1
Authority
WO
WIPO (PCT)
Prior art keywords
plug
hole
sanitary ware
fastening device
flange
Prior art date
Application number
PCT/SE1980/000209
Other languages
French (fr)
Inventor
D Mcinnes
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of WO1981000602A1 publication Critical patent/WO1981000602A1/en

Links

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
    • E03D1/01—Shape or selection of material for flushing cisterns
    • E03D1/012—Details of shape of cisterns, e.g. for connecting to wall, for supporting or connecting flushing-device actuators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/045—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front having axially compressing parts allowing the clamping of an object tightly to the wall

Definitions

  • the present invention relates to a fastening device of plastics ma ⁇ terial for fixing sanitary ware* of ceramic material, e g lavatory basins, to a substructure by the insertion of the fastening device through holes in the sanitary- ware and holes in the substructure, one end portion of * the device being a plug arranged in the hole in the sub ⁇ structure when the device is fitted, said plug being laterally expand ⁇ able against the walls of the hole, while the opposing free end of the device is formed as a flange for engagement against the sanitary ware at the end of the hole therein, there being a hole with a substantially constant diameter extending centrally from the flange end and at least a distance into the plug.
  • Sanitary ware is usually fixed by using plugs of a conventional type, i e plastic plugs which are inserted into holes in the substructure, said holes being drilled using a template, and are so located that they correspond to the holes in the sanitary ware.
  • Through-screws are then placed in the holes in the sanitary ware, and are tightened into the plugs causing the latter to expand.
  • the screw heads will engage direct ⁇ ly against the sanitary ware, which is then easily damaged when the screw is tightened down. Damage usually occurs due to uneveness in the material, causing the pressure from the screw head to be concentrated at a point, or because the glaze has been scraped off by the tool used for tightening down the screws.
  • Discolouration of the sanitary goods occurs after a time around the damaged place. Furthermore, a satisfac ⁇ tory seal between material and screw head is not obtained, resulting in that liquid can Leak into the holes, which must be considered as a disadvantage from the hygienic point of view. It has been sought to eliminate these disadvantages by placing a loose washer made from some plastic material under the screw head. It has been found by experience that the fitters do not often have these washers at hand when the item of sanitary ware is fitted in place and fitting will then be done with ⁇ out these washers. Extended plugs have also been proposed, including a
  • the object of the present invention is to provide a. fastening device eliminating the risk of damage to the brittle material in sanitary ware when fixing and retaining such ware, this risk being present in the use of conventional fastening devices in the form of plugs, for example, said device being adaptable to different thicknesses of ' sanitary ware at the same time, whereby the device enables a substantial reduction in plug assortment.
  • the advantage is further achieved with a fastening device in accordance with the invention that satisfactory sealing of the holes in the sanitary ware is always obtained.
  • the device in accordance with the invention is characterized in that between the flange and plug it constitutes a portion formed for accommodation in the hole in the item of sanitary ware, said portion having substantially the same outside dimension as the plug and comprising a sleeve - shaped part extending from the flange and a part, elongatable in the longitudinal direction of the plug, arranged between the opposing ends surfaces of the sleeve- shaped part and the plug.
  • the sleeve-shaped part serving as a seat and guide for a fastening element in the form of a screw or the like for attaching the fastening device, will protect the brittle material in the sanitary ware.
  • the elongatable portion in the hole in the item of sanitary ware also has a protective function.
  • the elongatable part will simultaneously ensure that the plug, when the screw is inserted, wi 11 always be moved down into the hole in the substructure for different thicknesses of the sanitary ware, whereby expansion of the plug when tightening down the screw only takes .place in the hole in the substructure.
  • the flanged sleeve-shaped..part furthermore ensures satisfactory sealing of the hole in the item of sanitary* ware.
  • the elongatable part comprises two helically formed filaments.or strands
  • the strands extend from the respective end edges of the sleeve part and plug from diametrically situated places.
  • guidance of the screw is obtained, as well as an increased en ⁇ gagement, surface of the screw against the elongatable part and between this part and the wall of the hole.
  • Figure 1 is a side view, partly in section, of the exemplified fasten ⁇ ing device, and Figure 2 is a. section along the line II-II in Figure 1.
  • the fastening device which is made in one piece in a suitable plastics material, comprises three main parts with substantially the same outside dimension, namely a sleeve-shaped part 1, a part 2 elongatable in the general direction of the device, and a plug 3, formed for lateral ex ⁇ pansion. Extending from the free end of the sleeve part 1 the device has a central hole 4 which, after a distance in the plug 3 tapers and merges into a slit 5 made from the free end of the plug, and terminat ⁇ ing a distance from the opposite end thereof.
  • the hole 4 is formed for coaction with a fastening screw (not shown), and when tightened down so that its head is in engagement against the free end of the sleeve part 1, said screw causes the expansion of the plug by means of the shape of the hole 4 in the plug 3 and the plug slit 5.
  • the sleeve-shaped part- 1 is formed at its free end with a conically upwardly diverging flange 6, and the sleeve body itself denoted by the numeral 7, is slightly tapered towards the elongatable part 2.
  • the elongatable part 2 comprises,' in the illustrated embodiment, two filaments or strands 8 and 9 formed helically and integrally with the end surface 10 of the sleeve body 7 and extending from diametrically situated places on the end surface.
  • the strands 8 and 9 go clockwise in a direction.towards the plug 3 and are formed integrally with the end surface of.the plug 11 at diametrically opposing places.
  • the fastening device particularly formed for fixing sanitary ware, e g lavatory basins or hand basins is fitted in the following way.
  • the device with a screw inserted in its hole 4, is taken through a hole in the item of sanitary ware, and the plug 3 pressed down by means of the screw into position in a hole made in the substructure for the item, this hole having a depth at least equal- to. that of the plug length.
  • the plug 3 can be provided with longitudinal ridges 12 for reinforcing the engagement and for preventing the plug turning while the screw is being tightened.
  • the brittle sanitary ware is.always protected against dam ⁇ age, since the sleeve part 1 and the elongatable part 2 surround the screw along the entire hole in the item of sanitary ware, and since it is ensured that no expansion of the device takes * place along this hole, while the use of one and the same fastening device is enabled at the same time by means of the elongatable part, with maintained, desired .function for different thicknesses of sanitary ware.
  • the expandable plug included in the device can have some other form / even if the il ⁇ lustrated form is advantageous, since the screw is easily inserted in the hole in the plug and the insertion of the plug and screw is a simple, operation since the plug does not expand before the screw is tightened down.
  • the elongatable portion can furthermore. comprise a wide-mesh stocking or a very thin-walled tube, which is both elongatable and compressible, i e it allows both positive and negative extension.
  • the length of the device in a fitted condition is thereby suitably adjusted to the aver ⁇ age thickness of the portions of normally available sanitary ware in ⁇ tended for fixing.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Dowels (AREA)

Abstract

Fastening device for fixing sanitary ware, e.g. a lavatory basin or wash basin, to a substructure. The integrally formed device has one end portion in the form of a plug (3) for retaining expansion in holes in the substructure, and at its opposite end it is formed with a flange (6) for engagement around the edge of a hole in the item of sanitary ware. Between the flange and plug the device comprises a sleeve portion (7) for engagement against the hole wall in the item, and an elongatable part (2) comprising of at least one strand (8, 9) formed along a helix line, and arranged between the opposite end surfaces (10, 11, respectively) of the sleeve part and plug.

Description

A FASTENING DEVICE FOR FIXING SANITARY WARE
FIELD OF THE INVENTION
The present invention relates to a fastening device of plastics ma¬ terial for fixing sanitary ware* of ceramic material, e g lavatory basins, to a substructure by the insertion of the fastening device through holes in the sanitary- ware and holes in the substructure, one end portion of* the device being a plug arranged in the hole in the sub¬ structure when the device is fitted, said plug being laterally expand¬ able against the walls of the hole, while the opposing free end of the device is formed as a flange for engagement against the sanitary ware at the end of the hole therein, there being a hole with a substantially constant diameter extending centrally from the flange end and at least a distance into the plug.
DESCRIPTION OF PRIOR ART
Sanitary ware is usually fixed by using plugs of a conventional type, i e plastic plugs which are inserted into holes in the substructure, said holes being drilled using a template, and are so located that they correspond to the holes in the sanitary ware. Through-screws are then placed in the holes in the sanitary ware, and are tightened into the plugs causing the latter to expand. The screw heads will engage direct¬ ly against the sanitary ware, which is then easily damaged when the screw is tightened down. Damage usually occurs due to uneveness in the material, causing the pressure from the screw head to be concentrated at a point, or because the glaze has been scraped off by the tool used for tightening down the screws. Discolouration of the sanitary goods occurs after a time around the damaged place. Furthermore, a satisfac¬ tory seal between material and screw head is not obtained, resulting in that liquid can Leak into the holes, which must be considered as a disadvantage from the hygienic point of view. It has been sought to eliminate these disadvantages by placing a loose washer made from some plastic material under the screw head. It has been found by experience that the fitters do not often have these washers at hand when the item of sanitary ware is fitted in place and fitting will then be done with¬ out these washers. Extended plugs have also been proposed, including a
"&UREXD****.
OMPI /., WIPO « tubular, non-expanding portion intended for accommodation in the hole in the sanitar ware* item, and a flange terminating the free end of this portion, formed for engaging round the edge of the hole in the material. Due to the large variations in thickness in the portions of the sanitary ware item intended for fixing, a consistent application of this proposal requires the availability of a plurality of different plug lengths.
SUMMARY OF THE INVENTION
The object of the present invention is to provide a. fastening device eliminating the risk of damage to the brittle material in sanitary ware when fixing and retaining such ware, this risk being present in the use of conventional fastening devices in the form of plugs, for example, said device being adaptable to different thicknesses of' sanitary ware at the same time, whereby the device enables a substantial reduction in plug assortment. The advantage is further achieved with a fastening device in accordance with the invention that satisfactory sealing of the holes in the sanitary ware is always obtained.
To achieve said objects and advantages, the device in accordance with the invention is characterized in that between the flange and plug it constitutes a portion formed for accommodation in the hole in the item of sanitary ware, said portion having substantially the same outside dimension as the plug and comprising a sleeve - shaped part extending from the flange and a part, elongatable in the longitudinal direction of the plug, arranged between the opposing ends surfaces of the sleeve- shaped part and the plug.
The sleeve-shaped part, serving as a seat and guide for a fastening element in the form of a screw or the like for attaching the fastening device, will protect the brittle material in the sanitary ware. The elongatable portion in the hole in the item of sanitary ware also has a protective function. The elongatable part will simultaneously ensure that the plug, when the screw is inserted, wi 11 always be moved down into the hole in the substructure for different thicknesses of the sanitary ware, whereby expansion of the plug when tightening down the screw only takes .place in the hole in the substructure. The flanged sleeve-shaped..part furthermore ensures satisfactory sealing of the hole in the item of sanitary* ware.
In a preferred embodiment of a fastening device in accordance with the invention, whereby the elongatable part comprises two helically formed filaments.or strands, the strands- extend from the respective end edges of the sleeve part and plug from diametrically situated places. Apart from increased strength resulting from the arrangement of two strands, improved, guidance of the screw is obtained, as well as an increased en¬ gagement, surface of the screw against the elongatable part and between this part and the wall of the hole.
BRIEF DESCRIPTION OF THE DRAWING
An embodiment of the fastening device in accordance with the invention will now be described in detail in the following whi le referring to the attached drawing on which
Figure 1 is a side view, partly in section, of the exemplified fasten¬ ing device, and Figure 2 is a. section along the line II-II in Figure 1.
PREFERRED EMBODIMENT
The fastening device, which is made in one piece in a suitable plastics material, comprises three main parts with substantially the same outside dimension, namely a sleeve-shaped part 1, a part 2 elongatable in the general direction of the device, and a plug 3, formed for lateral ex¬ pansion. Extending from the free end of the sleeve part 1 the device has a central hole 4 which, after a distance in the plug 3 tapers and merges into a slit 5 made from the free end of the plug, and terminat¬ ing a distance from the opposite end thereof. The hole 4 is formed for coaction with a fastening screw (not shown), and when tightened down so that its head is in engagement against the free end of the sleeve part 1, said screw causes the expansion of the plug by means of the shape of the hole 4 in the plug 3 and the plug slit 5.
OMPI
^*MI In the illustrated embodiment, the sleeve-shaped part- 1 is formed at its free end with a conically upwardly diverging flange 6, and the sleeve body itself denoted by the numeral 7, is slightly tapered towards the elongatable part 2.
The elongatable part 2 comprises,' in the illustrated embodiment, two filaments or strands 8 and 9 formed helically and integrally with the end surface 10 of the sleeve body 7 and extending from diametrically situated places on the end surface.' The strands 8 and 9 go clockwise in a direction.towards the plug 3 and are formed integrally with the end surface of.the plug 11 at diametrically opposing places.
The fastening device, particularly formed for fixing sanitary ware, e g lavatory basins or hand basins is fitted in the following way. The device, with a screw inserted in its hole 4, is taken through a hole in the item of sanitary ware, and the plug 3 pressed down by means of the screw into position in a hole made in the substructure for the item, this hole having a depth at least equal- to. that of the plug length. When the screw is tightened so that its head is in engagement against the flange 6, which in turn engages round the edge of the hole in the item, said Lateral expansion of the plug to firm engagement with the wall of the hole in the substracture takes place.'As illustrated, the plug 3 can be provided with longitudinal ridges 12 for reinforcing the engagement and for preventing the plug turning while the screw is being tightened.
By means of such forming of a fastening device "in accordance with the invention, the brittle sanitary ware is.always protected against dam¬ age, since the sleeve part 1 and the elongatable part 2 surround the screw along the entire hole in the item of sanitary ware, and since it is ensured that no expansion of the device takes* place along this hole, while the use of one and the same fastening device is enabled at the same time by means of the elongatable part, with maintained, desired .function for different thicknesses of sanitary ware.
The invention is not restricted to the embodiment described above and
OMPI
^rnSn i llustrated .on the drawings, but can be varied.in a plurality of ways within the scope of the following patent claims. Thus, the expandable plug included in the device can have some other form/ even if the il¬ lustrated form is advantageous, since the screw is easily inserted in the hole in the plug and the insertion of the plug and screw is a simple, operation since the plug does not expand before the screw is tightened down.
The elongatable portion can furthermore. comprise a wide-mesh stocking or a very thin-walled tube, which is both elongatable and compressible, i e it allows both positive and negative extension. The length of the device in a fitted condition is thereby suitably adjusted to the aver¬ age thickness of the portions of normally available sanitary ware in¬ tended for fixing.

Claims

WHAT WE CLAIM IS :
1 A fastening device of plastics material for fixing sanitary ware of ceramic material, e g lavatory' basins, or hand basins, to a substruc¬ ture by inserting the device through holes in the item of sanitary ware and holes in the substructure, one end portion of the device constitut- ing a plug arranged in the substructure' hole when the device is fitted, said plug being formed laterally expandable against the hole wall, the opposite free end of the device being formed' as a flange for engagement against the item of sanitary ware at the .end of the hole therein, a hole extending centrally in the device with substantially constant di- ameter from the flange end and at least a distance into the plug, char¬ acterized in that between the flange (6) and the plug (3) the fastening device comprises a portion for accommodating in the hole of the item of sanitary ware, having substantially the same outside dimension as the plug and comprising a sleeve-shaped part (7) extending from the flange, and a part (2) elongatable in the longitudinal direction of the plug and arranged between opposing end portions or end surfaces (10, 11, respectively) of the sleeve-shaped part and plug.
2 A fastening device as claimed in claim 1, characterized in that the elongate part (2) comprises at least one filament or strand arranged between said end surfaces along a helix line.
3 A fastening device as claimed in claim 2, characterized in that the elongatable part (2) comprises two helically formed strands, said strands (8, 9) extending from diametrically situated places from re¬ spective said end surfaces (10, 11).
PCT/SE1980/000209 1979-08-15 1980-08-14 A fastening device for fixing sanitary ware WO1981000602A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7906828 1979-08-15
SE7906828A SE417861B (en) 1979-08-15 1979-08-15 PLASTIC ASSEMBLY OF PLASTIC MATERIAL FOR FIXING SANITARY GOODS OF CERAMIC MATERIAL

Publications (1)

Publication Number Publication Date
WO1981000602A1 true WO1981000602A1 (en) 1981-03-05

Family

ID=20338630

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1980/000209 WO1981000602A1 (en) 1979-08-15 1980-08-14 A fastening device for fixing sanitary ware

Country Status (3)

Country Link
FI (1) FI802522A (en)
SE (1) SE417861B (en)
WO (1) WO1981000602A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0150668A1 (en) * 1984-01-09 1985-08-07 HILTI Aktiengesellschaft Expanding dovel
EP0893542A1 (en) * 1997-07-25 1999-01-27 VALSIR S.p.A. A recessed cistern for a flushing system
AT6112U3 (en) * 2002-12-20 2003-09-25 Kurt Fasching ANCHORS

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE365588B (en) * 1972-09-27 1974-03-25 Thorsmansdoedsbo O
NO132499B (en) * 1970-03-16 1975-08-11 Aackersberg Mortensen

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO132499B (en) * 1970-03-16 1975-08-11 Aackersberg Mortensen
SE365588B (en) * 1972-09-27 1974-03-25 Thorsmansdoedsbo O

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0150668A1 (en) * 1984-01-09 1985-08-07 HILTI Aktiengesellschaft Expanding dovel
EP0893542A1 (en) * 1997-07-25 1999-01-27 VALSIR S.p.A. A recessed cistern for a flushing system
AT6112U3 (en) * 2002-12-20 2003-09-25 Kurt Fasching ANCHORS

Also Published As

Publication number Publication date
SE7906828L (en) 1981-02-16
SE417861B (en) 1981-04-13
FI802522A (en) 1981-02-16

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