WO2021005460A1 - Bathtub - Google Patents

Bathtub Download PDF

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Publication number
WO2021005460A1
WO2021005460A1 PCT/IB2020/056220 IB2020056220W WO2021005460A1 WO 2021005460 A1 WO2021005460 A1 WO 2021005460A1 IB 2020056220 W IB2020056220 W IB 2020056220W WO 2021005460 A1 WO2021005460 A1 WO 2021005460A1
Authority
WO
WIPO (PCT)
Prior art keywords
wall
bathtub
lower inner
intermediate frame
edge
Prior art date
Application number
PCT/IB2020/056220
Other languages
French (fr)
Inventor
Luciano GAROFALO
Original Assignee
Relax S.R.L.
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=68501927&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2021005460(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Relax S.R.L. filed Critical Relax S.R.L.
Priority to CN202080050173.8A priority Critical patent/CN114286660B/en
Priority to EP20746274.8A priority patent/EP3996650B1/en
Publication of WO2021005460A1 publication Critical patent/WO2021005460A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/60—Components specifically designed for the therapeutic baths of groups A61H33/00
    • A61H33/6005—Special constructive structural details of the bathtub, e.g. of the walls or supporting structure
    • 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
    • A47K3/001—Accessories for baths, not provided for in other subgroups of group A47K3/00 ; Insertions, e.g. for babies; Tubs suspended or inserted in baths; Security or alarm devices; Protecting linings or coverings; Devices for cleaning or disinfecting baths; Bath insulation
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/005—Electrical circuits therefor
    • A61H2033/0083—Illumination
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/0087—Therapeutic baths with agitated or circulated water
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/02—Bathing devices for use with gas-containing liquid, or liquid in which gas is led or generated, e.g. carbon dioxide baths
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/60—Components specifically designed for the therapeutic baths of groups A61H33/00
    • A61H33/601—Inlet to the bath
    • A61H33/6021—Nozzles
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/60—Components specifically designed for the therapeutic baths of groups A61H33/00
    • A61H33/6068—Outlet from the bath
    • A61H33/6084—For filling to the border or edge of the bath, i.e. no border to be seen
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/04—Water-basin installations specially adapted to wash-basins or baths
    • E03C1/048—Water-basin installations specially adapted to wash-basins or baths supplying water through two or more openings around or along one side of the water-basin

Definitions

  • the present description relates to a bathtub, in particular a bathtub which can be provided with hydromassage and/or lighting systems.
  • WO 2013/041978 describes a bathtub comprising an inner container with a perimeter recess which is arranged between an upper inner wall and a lower inner wall, which recess houses nozzles of a hydromassage system and lights to illuminate the interior of the bathtub.
  • the lower inner wall is also joined to an upper outer wall by means of an intermediate frame which includes the nozzles and the lights, so that a cavity acting as an overflow is arranged between the upper inner wall and the upper outer wall.
  • US 2004/221383 A1 , DE 10315599 A1 and US 2166469 A disclose lights and/or nozzles arranged in a recess located under an upper ledge of the bathtub, so that the lower edge of the recess limits downwards the flow of water emitted by the nozzles and/or the beam of light emitted by the lights.
  • the object of the present description is therefore to provide a bathtub free from these drawbacks. Said object is achieved with a bathtub whose main characteristics are specified in the attached claims. Thanks to the particular mutual arrangement of the upper inner wall, of the lower inner wall and of the intermediate frame, the bathtub according to the present description can be provided with hydromassage and/or lighting systems more effective than those of said known bathtubs.
  • this mutual arrangement allows not only to hide nozzles for hydromassage and/or lights for lighting the bathtub from sight, but also to obtain water and/or air flows emitted by these nozzles at a relatively wide angle. For the same reason, the lights, even if hidden, can illuminate the entire lower portion of the bathtub, so as to obtain a significantly different lighting effect with respect to the lighting effect obtained with said known bathtubs.
  • Such improvements in water and/or air flows and/or light beams can be optimized by inclining the upper inner wall, the lower inner wall, the intermediate frame and/or an upper portion of the lower inner wall with particular angles, which may be constant or vary within a particular range, in order to improve the ergonomics of the bathtub.
  • the bathtub comprises at least four sides with two long sides and two short sides
  • the two portions of the upper inner wall arranged along the short sides are preferably more inclined than the two portions of the upper inner wall arranged along the long sides.
  • the particular shape of the bathtub also allows to hide one or more drains connected to overflow ducts.
  • the upper inner wall, the lower inner wall, the bottom wall and the intermediate frame of the bathtub can be made in one piece.
  • - figure 1 shows an axonometric view from above of a first embodiment of the bathtub
  • - figure 2 shows a top view of the bathtub of figure 1 ;
  • FIG. 3 shows an axonometric view from above of the bathtub of figure 1 without the outer walls;
  • FIG. 4 shows an axonometric view from below of the bathtub of figure 1 without the outer walls;
  • figure 5 shows a side view of the bathtub of figure 1 ;
  • figure 7 shows a front view of the bathtub of figure 1 ;
  • figure 9 shows section IX-IX of figure 5;
  • figure 10 shows a front portion, sectioned and enlarged, of the bathtub of figure 1 ;
  • FIG. 1 shows lateral portions, sectioned and enlarged, of the bathtub of figure 1 ;
  • FIG. 14 to 16 show lateral portions, sectioned and enlarged, of three further embodiments of the bathtub.
  • a first embodiment of the bathtub 1 comprises an inner container which is suitable for being filled with water and is formed by at least one upper inner wall 2, at least one lower inner wall 3 and at least one bottom wall 4, wherein the lower inner wall 3 is arranged between the upper inner wall 2 and the bottom wall 4.
  • the upper inner wall 2 and the lower inner wall 3 are substantially pyramidal frustum-shaped with a substantially rectangular cross section, rounded edges and the vertex facing downwards, but in other embodiments they may have different shapes, for example substantially pyramidal frustum-shaped with a polygonal cross section, substantially conical frustum-shaped with a circular or elliptical cross section, substantially parallelepiped, substantially cylindrical or their combinations, with rounded or sharp edges and/or vertices facing down or up.
  • the upper edge of the upper inner wall 2 can be joined to the inner edge of an upper frame 5 which surrounds at least partially the upper inner wall 2.
  • One or more outer lateral walls 6 can be arranged around the bathtub 1 and/or be joined to the upper frame 5, in particular by means of a mechanical coupling.
  • the bottom wall 4 has substantially the same shape of the lower edge of the lower inner wall 3, in particular substantially rectangular.
  • the bottom wall 4 is preferably joined to the lower inner wall 3 by means of a lower frame 7, preferably concave upwards, which surrounds at least partially the bottom wall 4.
  • the bottom wall 4 can be concave upwards and/or comprise also a drain sump 8, which can be partially covered by a removable cover 8a.
  • the upper inner wall 2 is joined to the lower inner wall 3 by at least one intermediate frame 9, which is surrounded at least partially by the lower inner wall 3, so that the inner edge of the intermediate frame 9 is joined to the lower edge of the upper inner wall 2 and the outer edge of the intermediate frame 9 is joined to the upper edge of the lower inner wall 3.
  • the intermediate frame 9 can be provided with one or more lights 10, in particular one or more strips of LED lights preferably arranged along the entire intermediate frame 9, suitable to project at least one beam of light towards the lower inner wall 3.
  • One or more nozzles 1 1 for example eighteen nozzles 1 1 , suitable for being connected to a whirlpool system (not shown in the figures) can be arranged beside the upper edge of the lower inner wall 3 under the intermediate frame 9.
  • One or more drains 12 can be arranged beside the upper edge of the lower inner wall 3 under the intermediate frame 9 to be connected to at least one overflow duct 13, in particular a curved duct, for example with a bend arranged beside the upper edge of the upper inner wall 2, which can be connected to in turn to the drain sump 8.
  • the upper inner wall 2 and/or the lower inner wall 3 and/or the bottom wall 4 and/or the upper frame 5 and/or the lower frame 7 and/or the drain sump 8 and/or the intermediate frame 9 are preferably made in one piece, in particular a molded piece of plastic material.
  • at least the upper inner wall 2, the lower inner wall 3, the bottom wall 4 and the intermediate frame 9 are made in one piece.
  • the upper inner wall 2 can be inclined with respect to a vertical axis, for example with respect to an outer wall 6, with an angle a of 0°-35°, in particular 9°-25°, constant or variable in this range, so that the upper inner wall 2 is vertical or slightly inclined downwards and towards the centre of the bathtub 1
  • the bathtub 1 comprises at least four sides with two long sides and two short sides, wherein the two portions (a portion is shown in figure 10) of the upper inner wall 2 arranged along the short sides are preferably inclined with an angle a, for example 23°-25°, which is greater than the angle a, for example 9°-1 1 °, of the inclination of the two portions (a portion is shown in figure 1 1 ) of the upper inner wall 2 arranged along the long sides of the bathtub 1 .
  • the intermediate frame 9 can be inclined with respect to a vertical axis with an angle b of 70°-1 10°, for example 85° -90°, constant or variable in this range, so that the intermediate frame 9 is horizontal or slightly inclined downwards or upwards.
  • the lower inner wall 3 can be inclined with respect to a vertical axis with an angle c of 0°-35°, in particular 9°-25°, for example 16°-18°, constant or variable in this range, so that the lower inner wall 3 is vertical or slightly inclined downwards and towards the centre of the bathtub 1 .
  • An upper portion 3a of the lower inner wall 3, which portion is adjacent to the intermediate frame 9 and can comprise the nozzles 1 1 and/or the drains 12, is preferably inclined with respect to a vertical axis with an angle d comprised between -5° and 5°, for example about -4°, constant or variable in this range, so that the upper portion 3a is vertical or slightly inclined towards the centre or towards the outside of the bathtub 1 .
  • the angle d of the inclination of the upper portion 3a of the lower inner wall 3 is preferably equal to or less than the angle c of the inclination of the remaining lower portion 3b of the lower inner wall 3.
  • the height of the upper portion 3a of the lower inner wall 3 is less than the height of the lower portion 3b of the lower inner wall 3.
  • the upper inner wall 2 and/or the lower inner wall 3 and/or the intermediate frame 9 can be concave, convex or mixed, in which case the angles a, b, c and/or d can be measured with respect to the straight line that connects two points of their respective edges in a vertical section plane.
  • the height hi of the upper inner wall 2 is greater than the height h2 of the lower inner wall 3.
  • At least most of the lower inner wall 3, in particular the entire lower inner wall 3, is preferably arranged outside a vertical axis v passing through the lower edge of the upper inner wall 2, with respect to the centre of the bathtub 1 . Furthermore, at least most of the lower inner wall 3, in particular its entire lower portion 3b, is preferably arranged in the space s arranged under the intermediate frame 9 between the inner edge and the outer edge of the intermediate frame 9.
  • the nozzles 1 1 when they are connected to a whirlpool system which is on, can direct into the bathtub 1 a flow 15 of water and/or air which covers an angle f of at least 60°.
  • a second embodiment of the bathtub 1 is similar to the first embodiment but the drain 12, which is connected to at least one overflow duct 13 and is preferably formed by at least one channel, is arranged in the upper frame 5 instead of the lower inner wall 3, so that the water in the bathtub 1 is discharged into the overflow duct 13 when its level reaches the upper frame 5.
  • a third embodiment of the bathtub 1 is similar to the first embodiment but the heights of the upper portion 3a and the lower portion 3b of the lower inner wall 3 are substantially the same.
  • a fourth embodiment of the bathtub 1 is similar to the first embodiment but the intermediate frame 9 forms an obtuse angle b.
  • the dimensions of the bathtub 1 can vary according to the number of people to be contained and thus also form a small swimming pool, if the bathtub 1 is made of large dimensions.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Rehabilitation Therapy (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pain & Pain Management (AREA)
  • Veterinary Medicine (AREA)
  • Bathtubs, Showers, And Their Attachments (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Devices For Medical Bathing And Washing (AREA)

Abstract

Bathtub (1 ) comprising at least one upper inner wall (2) with at least one lower edge, at least one lower inner wall (3) with at least one upper edge, and at least one bottom wall (4), wherein the lower inner wall (3) is arranged between the upper inner wall (2) and the bottom wall (4) and the upper inner wall (2) is joined to the lower inner wall (3) by at least one intermediate frame (9) with at least one inner edge and at least one outer edge, so that the inner edge of the intermediate frame (9) is joined to the lower edge of the upper inner wall (2) and the outer edge of the intermediate frame (9) is joined to the upper edge of the inner wall lower (3).

Description

BATHTUB
TECHNICAL FIELD
The present description relates to a bathtub, in particular a bathtub which can be provided with hydromassage and/or lighting systems.
FRAMEWORK OF THE DESCRIPTION
WO 2013/041978 describes a bathtub comprising an inner container with a perimeter recess which is arranged between an upper inner wall and a lower inner wall, which recess houses nozzles of a hydromassage system and lights to illuminate the interior of the bathtub. The lower inner wall is also joined to an upper outer wall by means of an intermediate frame which includes the nozzles and the lights, so that a cavity acting as an overflow is arranged between the upper inner wall and the upper outer wall.
However, in this known bathtub the flow of water emitted by the nozzles and the beam of light emitted by the lights are limited by the size of the recess and by the fact that the lower inner wall is substantially aligned with the upper inner wall, so that the intermediate frame is joined to the lower inner wall by a substantially horizontal portion of the lower inner wall which projects outwards. Moreover, this structure is relatively expensive since it cannot be made in one piece.
US 2004/221383 A1 , DE 10315599 A1 and US 2166469 A disclose lights and/or nozzles arranged in a recess located under an upper ledge of the bathtub, so that the lower edge of the recess limits downwards the flow of water emitted by the nozzles and/or the beam of light emitted by the lights.
SUMMARY OF THE DESCRIPTION
The object of the present description is therefore to provide a bathtub free from these drawbacks. Said object is achieved with a bathtub whose main characteristics are specified in the attached claims. Thanks to the particular mutual arrangement of the upper inner wall, of the lower inner wall and of the intermediate frame, the bathtub according to the present description can be provided with hydromassage and/or lighting systems more effective than those of said known bathtubs.
In fact, this mutual arrangement allows not only to hide nozzles for hydromassage and/or lights for lighting the bathtub from sight, but also to obtain water and/or air flows emitted by these nozzles at a relatively wide angle. For the same reason, the lights, even if hidden, can illuminate the entire lower portion of the bathtub, so as to obtain a significantly different lighting effect with respect to the lighting effect obtained with said known bathtubs.
Such improvements in water and/or air flows and/or light beams can be optimized by inclining the upper inner wall, the lower inner wall, the intermediate frame and/or an upper portion of the lower inner wall with particular angles, which may be constant or vary within a particular range, in order to improve the ergonomics of the bathtub. For this purpose, if the bathtub comprises at least four sides with two long sides and two short sides, the two portions of the upper inner wall arranged along the short sides are preferably more inclined than the two portions of the upper inner wall arranged along the long sides.
The particular shape of the bathtub also allows to hide one or more drains connected to overflow ducts.
Furthermore, again thanks to their particular mutual arrangement, the upper inner wall, the lower inner wall, the bottom wall and the intermediate frame of the bathtub can be made in one piece.
BRIEF DESCRIPTION OF THE DRAWINGS
Further advantages and features of the bathtub according to the present description will be clear to those skilled in the art from the following detailed and non-limiting description of some embodiments thereof with reference to the attached drawings wherein:
- figure 1 shows an axonometric view from above of a first embodiment of the bathtub; - figure 2 shows a top view of the bathtub of figure 1 ;
- figure 3 shows an axonometric view from above of the bathtub of figure 1 without the outer walls;
- figure 4 shows an axonometric view from below of the bathtub of figure 1 without the outer walls;
- figure 5 shows a side view of the bathtub of figure 1 ;
- figure 6 shows section VI-VI of figure 2;
- figure 7 shows a front view of the bathtub of figure 1 ;
- figure 8 shows section VIII-VIII of figure 2;
- figure 9 shows section IX-IX of figure 5;
- figure 10 shows a front portion, sectioned and enlarged, of the bathtub of figure 1 ;
- figures 1 1 to 13 show lateral portions, sectioned and enlarged, of the bathtub of figure 1 ;
- figures 14 to 16 show lateral portions, sectioned and enlarged, of three further embodiments of the bathtub.
EXEMPLARY EMBODIMENTS
Referring to figures 1 to 9, it is seen that a first embodiment of the bathtub 1 comprises an inner container which is suitable for being filled with water and is formed by at least one upper inner wall 2, at least one lower inner wall 3 and at least one bottom wall 4, wherein the lower inner wall 3 is arranged between the upper inner wall 2 and the bottom wall 4. In the present embodiment, the upper inner wall 2 and the lower inner wall 3 are substantially pyramidal frustum-shaped with a substantially rectangular cross section, rounded edges and the vertex facing downwards, but in other embodiments they may have different shapes, for example substantially pyramidal frustum-shaped with a polygonal cross section, substantially conical frustum-shaped with a circular or elliptical cross section, substantially parallelepiped, substantially cylindrical or their combinations, with rounded or sharp edges and/or vertices facing down or up. The upper edge of the upper inner wall 2 can be joined to the inner edge of an upper frame 5 which surrounds at least partially the upper inner wall 2. One or more outer lateral walls 6 (shown with dashed lines in figures 5 and 7) can be arranged around the bathtub 1 and/or be joined to the upper frame 5, in particular by means of a mechanical coupling. The bottom wall 4 has substantially the same shape of the lower edge of the lower inner wall 3, in particular substantially rectangular. The bottom wall 4 is preferably joined to the lower inner wall 3 by means of a lower frame 7, preferably concave upwards, which surrounds at least partially the bottom wall 4. The bottom wall 4 can be concave upwards and/or comprise also a drain sump 8, which can be partially covered by a removable cover 8a.
The upper inner wall 2 is joined to the lower inner wall 3 by at least one intermediate frame 9, which is surrounded at least partially by the lower inner wall 3, so that the inner edge of the intermediate frame 9 is joined to the lower edge of the upper inner wall 2 and the outer edge of the intermediate frame 9 is joined to the upper edge of the lower inner wall 3. The intermediate frame 9 can be provided with one or more lights 10, in particular one or more strips of LED lights preferably arranged along the entire intermediate frame 9, suitable to project at least one beam of light towards the lower inner wall 3. One or more nozzles 1 1 , for example eighteen nozzles 1 1 , suitable for being connected to a whirlpool system (not shown in the figures) can be arranged beside the upper edge of the lower inner wall 3 under the intermediate frame 9. One or more drains 12 can be arranged beside the upper edge of the lower inner wall 3 under the intermediate frame 9 to be connected to at least one overflow duct 13, in particular a curved duct, for example with a bend arranged beside the upper edge of the upper inner wall 2, which can be connected to in turn to the drain sump 8.
The upper inner wall 2 and/or the lower inner wall 3 and/or the bottom wall 4 and/or the upper frame 5 and/or the lower frame 7 and/or the drain sump 8 and/or the intermediate frame 9 are preferably made in one piece, in particular a molded piece of plastic material. Preferably, at least the upper inner wall 2, the lower inner wall 3, the bottom wall 4 and the intermediate frame 9 are made in one piece.
Referring also to figures 10 and 1 1 , which for simplicity do not show the lights 10 and the nozzles 1 1 , it can be seen that the upper inner wall 2 can be inclined with respect to a vertical axis, for example with respect to an outer wall 6, with an angle a of 0°-35°, in particular 9°-25°, constant or variable in this range, so that the upper inner wall 2 is vertical or slightly inclined downwards and towards the centre of the bathtub 1 In the present embodiment, the bathtub 1 comprises at least four sides with two long sides and two short sides, wherein the two portions (a portion is shown in figure 10) of the upper inner wall 2 arranged along the short sides are preferably inclined with an angle a, for example 23°-25°, which is greater than the angle a, for example 9°-1 1 °, of the inclination of the two portions (a portion is shown in figure 1 1 ) of the upper inner wall 2 arranged along the long sides of the bathtub 1 .
The intermediate frame 9 can be inclined with respect to a vertical axis with an angle b of 70°-1 10°, for example 85° -90°, constant or variable in this range, so that the intermediate frame 9 is horizontal or slightly inclined downwards or upwards.
The lower inner wall 3 can be inclined with respect to a vertical axis with an angle c of 0°-35°, in particular 9°-25°, for example 16°-18°, constant or variable in this range, so that the lower inner wall 3 is vertical or slightly inclined downwards and towards the centre of the bathtub 1 .
An upper portion 3a of the lower inner wall 3, which portion is adjacent to the intermediate frame 9 and can comprise the nozzles 1 1 and/or the drains 12, is preferably inclined with respect to a vertical axis with an angle d comprised between -5° and 5°, for example about -4°, constant or variable in this range, so that the upper portion 3a is vertical or slightly inclined towards the centre or towards the outside of the bathtub 1 . The angle d of the inclination of the upper portion 3a of the lower inner wall 3 is preferably equal to or less than the angle c of the inclination of the remaining lower portion 3b of the lower inner wall 3. The height of the upper portion 3a of the lower inner wall 3 is less than the height of the lower portion 3b of the lower inner wall 3.
The upper inner wall 2 and/or the lower inner wall 3 and/or the intermediate frame 9 can be concave, convex or mixed, in which case the angles a, b, c and/or d can be measured with respect to the straight line that connects two points of their respective edges in a vertical section plane.
The height hi of the upper inner wall 2 is greater than the height h2 of the lower inner wall 3.
At least most of the lower inner wall 3, in particular the entire lower inner wall 3, is preferably arranged outside a vertical axis v passing through the lower edge of the upper inner wall 2, with respect to the centre of the bathtub 1 . Furthermore, at least most of the lower inner wall 3, in particular its entire lower portion 3b, is preferably arranged in the space s arranged under the intermediate frame 9 between the inner edge and the outer edge of the intermediate frame 9.
Referring to figure 12, it is seen that the lights 10, when they are on, project a beam of light 14 which covers an angle e of at least 60°, so as to illuminate directly and at least partially the lower inner wall 3, the lower frame 7 and/or the bottom wall 4. With reference to figure 13, it is seen that the nozzles 1 1 , when they are connected to a whirlpool system which is on, can direct into the bathtub 1 a flow 15 of water and/or air which covers an angle f of at least 60°.
Referring to figure 14, it is seen that a second embodiment of the bathtub 1 is similar to the first embodiment but the drain 12, which is connected to at least one overflow duct 13 and is preferably formed by at least one channel, is arranged in the upper frame 5 instead of the lower inner wall 3, so that the water in the bathtub 1 is discharged into the overflow duct 13 when its level reaches the upper frame 5. Referring to Figure 15, it is seen that a third embodiment of the bathtub 1 is similar to the first embodiment but the heights of the upper portion 3a and the lower portion 3b of the lower inner wall 3 are substantially the same.
Referring to figure 16, it is seen that a fourth embodiment of the bathtub 1 is similar to the first embodiment but the intermediate frame 9 forms an obtuse angle b.
The dimensions of the bathtub 1 can vary according to the number of people to be contained and thus also form a small swimming pool, if the bathtub 1 is made of large dimensions.
Possible variations or additions can be made by those skilled in the art to the embodiments described and illustrated herein, while remaining within the scope of the following claims. In particular, further embodiments may comprise the technical features of one of the following claims with the addition of one or more technical features described in the text or illustrated in the drawings, taken individually or in any mutual combination.

Claims

1 . Bathtub (1 ) comprising at least one upper inner wall (2) with at least one lower edge, at least one lower inner wall (3) with at least one upper edge, and at least one bottom wall (4), wherein the lower inner wall (3) is arranged between the upper inner wall (2) and the bottom wall (4), characterized in that the upper inner wall (2) is joined to the lower inner wall (3) by at least one intermediate frame (9) with at least one inner edge and at least one outer edge, so that the inner edge of the intermediate frame (9) is joined to the lower edge of the upper inner wall (2) and the outer edge of the intermediate frame (9) is joined to the upper edge of the lower inner wall (3).
2. Bathtub (1 ) according to the preceding claim, characterized in that the intermediate frame (9) is provided with one or more lights (10) suitable to illuminate the lower inner wall (3) directly and at least partially with at least one beam of light (14).
3. Bathtub (1 ) according to the preceding claim, characterized in that the bottom wall (4) is joined to the lower inner wall (3) by means of a lower frame (7) which surrounds at least partially the bottom wall (4), wherein said one or more lights (10) are suitable to illuminate directly and at least partially with at least one beam of light (14) also the lower frame (7) and the bottom wall (4).
4. Bathtub (1 ) according to one of the preceding claims, characterized in that one or more nozzles (1 1 ) suitable to be connected to a whirlpool system are arranged on the lower inner wall (3) beside the upper edge of the lower inner wall (3) under the intermediate frame (9).
5. Bathtub (1 ) according to one of the preceding claims, characterized in that the height (hi ) of the upper inner wall (2) is greater than the height (h2) of the lower inner wall (3).
6. Bathtub (1 ) according to one of the preceding claims, characterized in that one or more drains (12) are arranged on the lower inner wall (3) beside the upper edge of the lower inner wall (3) under the intermediate frame (9).
7. Bathtub (1 ) according to one of the preceding claims, characterized in that the upper inner wall (2) is inclined downwards and towards the centre of the bathtub (1 )·
8. Bathtub (1 ) according to the preceding claim, characterized in that it comprises at least four sides with two long sides and two short sides, in which the two portions of the upper inner wall (2) arranged along the short sides are inclined at an angle (a) which is greater than the angle (a) of the inclination of the two portions of the upper inner wall (2) arranged along the long sides.
9. Bathtub (1 ) according to one of the preceding claims, characterized in that the intermediate frame (9) is inclined with respect to a vertical axis with an angle (b) of 70°-1 10°, constant or variable in this range.
10. Bathtub (1 ) according to one of the preceding claims, characterized in that the lower inner wall (3) surrounds at least partially the intermediate frame (9).
1 1 . Bathtub (1 ) according to one of the preceding claims, characterized in that an upper portion (3a) of the lower inner wall (3) is inclined with respect to a vertical axis with an angle (d) comprised between -5° and 5°, constant or variable in this range.
12. Bathtub (1 ) according to one of the preceding claims, characterized in that an upper portion (3a) of the lower inner wall (3) is inclined with respect to a vertical axis with an angle (d) equal to or less than the angle (c) of the inclination of the remaining lower portion (3b) of the lower inner wall (3).
13. Bathtub (1 ) according to claim 1 1 or 12, characterized in that one or more nozzles (1 1 ) suitable to be connected to a whirlpool system and/or one or more drains (12) are arranged on the upper portion (3a) of the lower inner wall (3).
14. Bathtub (1 ) according to one of the preceding claims, characterized in that at least most of the lower inner wall (3) is arranged outside a vertical axis (v) passing through the lower edge of the upper inner wall (2), relative to the centre of the bathtub (1 ).
15. Bathtub (1 ) according to one of the preceding claims, characterized in that at least most of the lower inner wall (3) is arranged in the space (s) arranged under the intermediate frame (9) between the inner edge and the outer edge of the intermediate frame (9).
16. Bathtub (1 ) according to one of the preceding claims, characterized in that the upper inner wall (2), the lower inner wall (3), the bottom wall (4) and the intermediate frame (9) are made in one piece.
PCT/IB2020/056220 2019-07-10 2020-07-01 Bathtub WO2021005460A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080050173.8A CN114286660B (en) 2019-07-10 2020-07-01 Bathtub
EP20746274.8A EP3996650B1 (en) 2019-07-10 2020-07-01 Bathtub

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102019000011409A IT201900011409A1 (en) 2019-07-10 2019-07-10 Bathtub
IT102019000011409 2019-07-10

Publications (1)

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WO2021005460A1 true WO2021005460A1 (en) 2021-01-14

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IT (1) IT201900011409A1 (en)
WO (1) WO2021005460A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201900011409A1 (en) 2019-07-10 2021-01-10 Relax S R L Bathtub

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166469A (en) * 1938-03-11 1939-07-18 Julia L Houston Bathtub
DE10315599A1 (en) * 2003-04-05 2004-10-21 Franz Kaldewei Gmbh & Co. Kg First-aid or medical bath, includes distributor arranged in receptacle space of bath edge cover and has media supply connected to it
US20040221383A1 (en) * 2002-11-19 2004-11-11 Christian Sieger Sanitary tub
NL1031021C1 (en) * 2006-01-27 2007-07-30 Aqua Wellness B V Modular bathtub, has inner sides of base and side walls provided with removable wall modules
WO2020056220A1 (en) 2018-09-15 2020-03-19 Uccellini LLC Massager device with expansion function
IT201900011409A1 (en) 2019-07-10 2021-01-10 Relax S R L Bathtub

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRM20110143U1 (en) 2011-09-19 2013-03-20 Gruppo Tre S S P A WHIRLPOOL BATHTUB.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166469A (en) * 1938-03-11 1939-07-18 Julia L Houston Bathtub
US20040221383A1 (en) * 2002-11-19 2004-11-11 Christian Sieger Sanitary tub
DE10315599A1 (en) * 2003-04-05 2004-10-21 Franz Kaldewei Gmbh & Co. Kg First-aid or medical bath, includes distributor arranged in receptacle space of bath edge cover and has media supply connected to it
NL1031021C1 (en) * 2006-01-27 2007-07-30 Aqua Wellness B V Modular bathtub, has inner sides of base and side walls provided with removable wall modules
WO2020056220A1 (en) 2018-09-15 2020-03-19 Uccellini LLC Massager device with expansion function
IT201900011409A1 (en) 2019-07-10 2021-01-10 Relax S R L Bathtub
EP3996650A1 (en) 2019-07-10 2022-05-18 Relax S.R.L. Bathtub

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EP3996650B1 (en) 2024-06-12
EP3996650A1 (en) 2022-05-18
CN114286660A (en) 2022-04-05

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