EP0362933A1 - Badewannen und deren Herstellungsverfahren - Google Patents

Badewannen und deren Herstellungsverfahren Download PDF

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Publication number
EP0362933A1
EP0362933A1 EP89202430A EP89202430A EP0362933A1 EP 0362933 A1 EP0362933 A1 EP 0362933A1 EP 89202430 A EP89202430 A EP 89202430A EP 89202430 A EP89202430 A EP 89202430A EP 0362933 A1 EP0362933 A1 EP 0362933A1
Authority
EP
European Patent Office
Prior art keywords
shell
countershell
sidewalls
bathtub
bathtub 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.)
Withdrawn
Application number
EP89202430A
Other languages
English (en)
French (fr)
Inventor
Carlo Urbinati
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jacuzzi Europe SpA
Original Assignee
Jacuzzi Europe SpA
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 Jacuzzi Europe SpA filed Critical Jacuzzi Europe SpA
Publication of EP0362933A1 publication Critical patent/EP0362933A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K3/00—Baths; Douches; Appurtenances therefor
    • A47K3/02—Baths
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K3/00—Baths; Douches; Appurtenances therefor
    • A47K3/16—Devices for fastening baths to floors or walls; Adjustable bath feet ; Lining panels or attachments therefor

Definitions

  • Present invention pertains to improved bathtubs and their manufacturing process.
  • thermoplastic materials specifically tubs provided through thermoshaping.
  • this process consists in providing a thermoplastic preh­eated plate with a desired threedimensional shape, by applying vacuum in­side a mold, so that the plate, made plastical and moldable by heat, follows the mold walls, taking over their shape.
  • the so shaped tub has an internal surface particularly glazed and per­fectly finished.
  • it needs a second manufacturing process because the walls are very thin, expecially at the rounded connections between bottom and side walls and at the bottom itself, and obviously cannot bear the strains due to the specific use.
  • the herebefore used art coming from the boat manufactur­ing art, consists in coating the outside and the bottom of a tub by resin-glass, i.e. providing the whole external surface of the tub with a coating of glass fibers, or similar material, soaking them with a thermosetting resing, compatible with the thermoplastic material forming the thermoshaped shell, to which it binds, and making it harden and crosslink.
  • This second manufacturing step has been and is presently prevailingly handmade, with obviously very high industrial costs and too long working times, so that said tubs remained an expensive and not bulk producible article.
  • the bathtub of the kind comprising a shell of thermoplastic material, preferably obtained through thermoshaping, characterized in that the bottom and the sides, the last mentioned at least for a limited height, mate a wrapping structural member or countershell, preferably molded from a proper plastic material, adhering to the above mentioned areas of the thermoshaped shell, providing the necessary mechanical strength with respect to the use of the tub.
  • said countershell is shaped as a tray of which the bottom exactly tallies together with the bottom of the thermoshaped shell, while the edges have such a height which is at least necessary to sustain and give mechanical strength to the rounded connections between the bottom and sides.
  • such a countershell can be divided into separated bands, of which anyone tallies together with a longitudinal bottom connection of the thermoshaped shell, in which case said shell has in the region corresponding to the junction between adjacent bands a strengthening longitudinal rib.
  • the process according to the present invention provides a first step for thermoshaping the shell of the tub in a thermoplastic material, of usual and well known kind, and is characterized by a second step in which through a proper separated mold or using as a mold the bottom and, along part of the height, the sides of said shell, it is provided through molding, preferably from thermosetting material, a countershell such as that here above mentioned.
  • a bathtub comprising a shell 10 and a structural wrapping member or countershell 11.
  • the shell 10 comprises a bottom 12 and sidewalls 13, bottom and sidewalls being properly connected by portions 14 having a proper curvature.
  • the walls 13 end upside with an edge 15 of usual kind.
  • the wrapping structural member or countershell 11, in this embodiment, is shaped as a tray and consists of a bottom 16 and sides 17.
  • the bottom 16 is shaped and sized in order to tally exactly with the bot­ tom 12 of the shell, as well as the sides 17 are shaped and slanted in order to tally exactly with the sidewalls of the shell 10.
  • the shell 10 is performed through thermoshaping from a thermoplastic material sheet, having small thickness, further reducing because of to the stretching due to the thermoshaping, expecial­ly at the bottom 12 and the connecting member 14, while at the upside part of the shell 10 the presence of the edge 15 provides also to confer stiffness and structural strength to the shell.
  • the bottom 12 and the lowest portions of the walls 13 are prone to the highest strains due both to he hydrostatic pressure when the shell is filled with water, and to the presence and the movements of a user when being standing or kneeling, loads the whole weight on a very limited area.
  • the countershell is preferable provided from thermosetting material with proper thickness for strengthening the above mentioned weak areas of the shell 10.
  • the tray 11 can have a thickness of many centimeters and show sides of substantial height in order to structurally strengthen the connecting parts 14 and the sidewalls 13.
  • tray 11 is suited to an automated production and no longer to hand production, either using part of the same shell 10 (in particular the bottom and the sidewalls for a desired heigth), or a suit­able and separated mold.
  • the resulting shells 10 can be piled up for shipping without any damage due to coarseness of their external surfaces, being the shell 10 and the tray 11 matchable during the tub manufacture or at the final installation.
  • such a member is equivalent to the tray 11, apart the omis­sion of extreme walls.
  • Such an embodiment is suited to a countershell production through extrusion.
  • figure 4 is equivalent to that of figure 3, apart the shell longitudinally divided in two shaped bands 18, anyone of which is symmetrical with respect to the connection line between the bottom 12 and the sidewalls 13 of the shell 10.
  • a longitudinal rib not shown, corresponding to the connecting line between the two bands 18.
  • FIG 5 is a variation of that of figure 4 because, further to the two lateral bands 18, a central band 19 is pro­vided. In such a case instead of just one rib, two longitudinal ribs will be provided in the bottom 12 of the shell 10.
  • the countershell 11 is preferably provided by molding of thermosetting material.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Laminated Bodies (AREA)
EP89202430A 1988-10-03 1989-09-28 Badewannen und deren Herstellungsverfahren Withdrawn EP0362933A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2216488 1988-10-03
IT8822164A IT1227268B (it) 1988-10-03 1988-10-03 Perfezionamento nelle vasche da bagno e procedimento per la loro fabbricazione

Publications (1)

Publication Number Publication Date
EP0362933A1 true EP0362933A1 (de) 1990-04-11

Family

ID=11192459

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89202430A Withdrawn EP0362933A1 (de) 1988-10-03 1989-09-28 Badewannen und deren Herstellungsverfahren

Country Status (2)

Country Link
EP (1) EP0362933A1 (de)
IT (1) IT1227268B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993019657A1 (en) * 1992-04-01 1993-10-14 Kendall Desmond M Spacer for supporting water catchment basins
US5428849A (en) * 1994-03-03 1995-07-04 Watkins Manufacturing Corporation Portable spa with integral bottom pan, interchangeable side skirt, and interlocking cover
EP0754426A1 (de) * 1995-07-12 1997-01-22 Rudolf Koller Gesellschaft m.b.H. Bodenverstärkung für Kunststoffbadewannen
WO2004082446A3 (de) * 2003-03-21 2004-12-02 Hoesch Metall & Kunststoffwerk Bodenwanne mit unterbau

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2356399A1 (fr) * 1976-06-30 1978-01-27 Buderus Eisenwerk Baignoire en matiere plastique
GB2040676A (en) * 1979-01-29 1980-09-03 Curran Edward Ltd Baths, shower trays and like toilet receptacles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2356399A1 (fr) * 1976-06-30 1978-01-27 Buderus Eisenwerk Baignoire en matiere plastique
GB2040676A (en) * 1979-01-29 1980-09-03 Curran Edward Ltd Baths, shower trays and like toilet receptacles

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993019657A1 (en) * 1992-04-01 1993-10-14 Kendall Desmond M Spacer for supporting water catchment basins
US5428849A (en) * 1994-03-03 1995-07-04 Watkins Manufacturing Corporation Portable spa with integral bottom pan, interchangeable side skirt, and interlocking cover
US5564137A (en) * 1994-03-03 1996-10-15 Watkins Manufacturing Corporation Portable spa with integral bottom pan, interchangeable side skirt, and interlocking cover
US5615421A (en) * 1994-03-03 1997-04-01 Watkins Manufacturing Corporation Portable spa with integral bottom pan, interchangeable side skirt, and interlocking cover
US5685032A (en) * 1994-03-03 1997-11-11 Watkins Manufacturing Corp. Portable spa with integral bottom pan, interchangeable side skirt, and interlocking cover
EP0754426A1 (de) * 1995-07-12 1997-01-22 Rudolf Koller Gesellschaft m.b.H. Bodenverstärkung für Kunststoffbadewannen
WO2004082446A3 (de) * 2003-03-21 2004-12-02 Hoesch Metall & Kunststoffwerk Bodenwanne mit unterbau

Also Published As

Publication number Publication date
IT8822164A0 (it) 1988-10-03
IT1227268B (it) 1991-03-28

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