Abstract:
A method for providing a cushion and tub assembly includes obtaining a cushion with magnets within the cushion. The method also comprises obtaining a metallic member, the metallic member magnetically attracting to the magnets in the cushion. The metallic member is permanently secured to a hidden surface of a tub at a location corresponding to a desired location of the cushion on the exposed surface of the tub. The tub and cushion are provided with a cushion being releasably connectable to the exposed surface of the tub at the desired location by attraction forces between the magnets and the metallic member through the tub wall.

Description:
CROSS-REFERENCE TO RELATED APPLICATION 
     The present application is a Continuation of the U.S. patent application Ser. No. 13/042,759, filed on Mar. 8, 2011 now U.S. Pat. No. 8,276,221 issued Oct. 2, 2012, which is a divisional of the U.S. patent application Ser. No. 11/029,340, filed on Jan. 6, 2005 now U.S. Pat. No. 8,328,789 issued Dec. 11, 2012, which claims priority on U.S. Provisional Patent Application No. 60/534,375, filed on Jan. 6, 2004, by the present Applicants. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention generally relates to washing/bathing tub accessories and, more particularly, to a cushion system to be used in a bathtub, a spa, a shower stall, a swimming pool, a whirlpool. 
     2. Background Art 
     Tubs are well known for their primary use, namely a washroom installation in which a user person washes, bathes. Tubs have however evolved to add pleasure and comfort to practicality, and are found in many forms, such as bathtubs, spas, whirlpools. For instance, tubs are now provided with air jet systems, whirlpool systems. There is an increasing variety of products, such as bathing oils, crèmes, lotions, that emphasize the therapeutic and health-beneficial aspects of bathing. 
     Tubs are generally sized and shaped so as to receive at least one user person in a sitting position, or partially lying position. Such tubs define a backrest surface, upon which a user person may rest his/her upper body and his/her head. 
     Accessories, such as cushions, have been developed, to accommodate the bather. One known cushion consists of a cushion, such as an inflatable pocket, a foam cushion or the like, equipped with suction cups, by which the cushion may be releasably secured to the backrest of the tub. 
     The efficiency of the suction cups in securing the cushion to the tub is questionable. The cushion may be partially immersed into the bathing water, and the buoyancy forces on the cushion may be sufficient to dislodge the suction cups. Also, the suction cups are sandwiched between the backrest and the cushion. This creates a gap between the backrest and the cushion, which may result in accrued pressure on the suction cups as a result of the deformation of the cushion when being pressured by the bather. 
     Another type of cushion used in tubs is provided with hooks, clips or the like, which are received in receptacles anchored to a surface of the tub. The receptacles are in some cases glued to the surface of the tub, in which case they do not make up a solid bond, as water may infiltrate and affect the effectiveness of the bonding agent. Alternatively, some receptacles are secured directly through the surface of the tub. This results in the presence of anchoring holes in the surface of the tub. The anchoring holes may result in water infiltration, and must be patched—if the receptacles are to be removed—leaving a mark in the surface of the tub. 
     SUMMARY OF INVENTION 
     It is an aim of the present invention to provide a novel cushion system for a washing/bathing tub. 
     It is a further aim of the present invention to provide a cushion system for a washing/bathing tub with an increased contact surface with a surface of the tub. 
     It is a still further aim of the present invention to provide a cushion system having a cushion member marrying a shape of a surface of a washing/bathing tub. 
     It is a still further aim of the present invention to provide a cushion system for a washing/bathing tub that is secured to a surface of the tub without altering a surface thereof. 
     Therefore, in accordance with the present invention, there is provided a method for providing a cushion and tub assembly, comprising: obtaining a cushion with at least one magnet within the cushion; obtaining at least one metallic member, the at least one metallic member magnetically attracting to the at least one magnet in the cushion; permanently securing the at least one metallic member to a hidden surface of a tub at a location corresponding to a desired location of the cushion on the exposed surface of the tub; and providing the tub and cushion with the cushion being releasably connectable to the exposed surface of the tub at the desired location by attraction forces between the at least one magnet and the at least one metallic member through the tub wall. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Having thus generally described the nature of the invention, reference will now be made to the accompanying drawings, showing by way of illustration a preferred embodiment thereof and in which: 
         FIG. 1  is a perspective view of a cushion system for a washing/bathing tub constructed in accordance with a preferred embodiment of the present invention, as positioned within a bathtub; 
         FIG. 2  is a front elevation view of the cushion system of the present invention; 
         FIG. 3  is a rear elevation view of the cushion system of the present invention; 
         FIG. 4  is a perspective view of the cushion system of the present invention; 
         FIG. 5  is a side elevation view, partly sectioned, view of the cushion system as mounted to a wall of a bathtub; 
         FIG. 6  is a fragmented perspective view of a metallic plate as mounted to a hidden surface of a bathtub with the cushion system of the present invention; 
         FIG. 7  is a fragmented perspective view of the cushion system of the present invention having a magnetic coating on a surface of the bathtub for being secured thereto; 
         FIG. 8  is a perspective view of a connector portion of a magnet member in accordance with an embodiment of the present invention; 
         FIG. 9  is a perspective view of the connector portion having a magnet partially received therein to form the magnet member; 
         FIG. 10  is an enlarged perspective view of the magnet member as partially received in a cushion member of the cushion system; 
         FIG. 11  is a perspective view of the cushion system with one of the magnet members partially secured to the cushion member; and 
         FIG. 12  is a rear view of the cushion system with the magnet members in use positions. 
     
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     Referring to the drawings and, more particularly, to  FIG. 1 , a cushion system for a washing/bathing tub in accordance with the present invention is generally shown at  10 , in a bathtub  1 . 
     The bathtub  1  has a hidden surface  2 , and an exposed surface  3  which defines a water-receiving cavity  4 , in which water is accumulated for a bath. The water-receiving cavity  4  of the bathtub  1  has a bottom wall  5  and a lateral wall  6 , upon which the cushion system  10  is positioned. The bathtub  1  is of typical construction, and is made of materials such as enameled steel, stainless steel, cast iron, acrylonitrile-butadiene-styrene (ABS), acrylic, glass fiber or any other known material used to manufacture bathtubs. 
     Referring concurrently to  FIGS. 2-4 , the cushion system  10  is shown having a cushion member  12 . The cushion system  10  is to be used for instance as a headrest for a bather, or to support the limbs, back, torso, etc. . . . . The cushion member  12  has an arcuate contour, with a first surface  14  and a second surface  16 . The first surface  14  is the abutment surface that is exposed when the cushion system  10  is mounted to a surface of the bathtub  1  (as shown in  FIG. 1 ). It is the surface of the cushion member  12  upon which a bather leans/lies when using the cushion system  10 . The second surface  16  is the surface that is opposed to the surface of the bathtub  1  ( FIG. 1 ) upon which the cushion system  10  is mounted. 
     The cushion system  10  of the present invention makes use of magnetic forces to be secured to the exposed surface  3  of the bathtub  1 . The cushion system  10  has a magnetic member connected to the cushion member  12 . More specifically, in the embodiment of the present invention shown in  FIGS. 2 ,  3  and  4 , the cushion system  10  has magnets  20 A,  20 B and  20 C. The magnets  20 A,  20 B and  200  are within the cushion member  12  and are disposed in a triangular pattern. As will be described hereinafter, the magnets of the cushion system  10  can be disposed in any suitable pattern. The amount of magnets may vary from one to more. 
     In order for the cushion member  12  to be magnetically retained to a wall of the bathtub  1  ( FIG. 1 ) by the magnets  20 A,  20 B and  20 C, an opposite magnetic member must be present. Referring to  FIG. 5 , the cushion system  10  of the present invention is shown mounted to the exposed surface  3  of the lateral wall  6  of the bathtub  1 . A metallic plate  22  is secured to the hidden surface  2  of the lateral wall  6  of the bathtub  1 . The attraction between the magnets  20 A,  20 B and  20 C and the metallic plate  22  is of sufficient magnitude to keep the cushion member  12  in position against the exposed surface  3  of the lateral wall  6 . The metallic plate  22  is secured to the hidden surface  2  of the lateral wall  6  of the bathtub  6  by being screwed, glued, magnetized, by way of other mechanical fasteners or the like. The metallic plate  22  is on the hidden surface  2  of the bathtub  1 , such that it will not be visible. Alternatively, the metallic plate  22  can be laminated into the material of the tub wall. 
     It is noted that the cushion member  12  illustrated in  FIG. 5  marries the shape of the exposed surface  3  of the lateral wall  6  of the bathtub  1 . This contact surface between the cushion member  12  and the surface of the bathtub will reduce the possibility of the cushion member  12  being unexpectedly dislodged, as will be described hereinafter. 
     Referring to  FIG. 6 , metallic plates  22 A,  22 B and  22 C are provided as an alternative to the single metallic plate  22  of  FIG. 5 . As an example, such an embodiment is well suited for bathtubs in which the lateral wall  6  has a non-negligible curvature, in which case a flat one of the metallic plate  22  would not marry the shape of lateral wall  6 . 
     In the above instances, in which opposite magnets are on opposite sides of the lateral wall of the bathtub, the magnets can be of different sizes according to the thickness of the bathtub wall, so as to provide sufficient attraction forces for the cushion member  12  to remain in place. 
     Referring to  FIG. 7 , the lateral wall  6  of the bathtub  1  has been magnetized with a coating to have the required opposite magnetic member, as shown at  23 . 
     In some cases, the bathtub  1  is made of material that has magnetic attraction properties (e.g., enameled steel, some stainless steel types). Accordingly, in such a case, no metallic plate (e.g., metallic plate  22  of  FIG. 5 , metallic plates  22 A,  22 B,  22 C of  FIGS. 6 and 7 ) are required to keep the cushion member  12  in position against the lateral wall  6  of the bathtub  1 , as the lateral wall  6  acts as the opposite magnetic member. 
     Although the magnets  20 A,  20 B and  20 C are illustrated as being concealed in the cushion member  12 , it is contemplated to have them partially within the cushion member  12 , or even on the second surface  16  of the cushion member  12 . For instance, the magnets  20 A,  20 B and  20 C may be glued to a surface of the cushion member  12 . 
     It is preferred however to have the magnets  20 A,  20 B and  20 C positioned within the cushion  12 , in which case the contact surface between the bathtub  1  ( FIG. 1 ) and the second surface  16  of the cushion member  12  is maximized. In doing so, the pressure sustained by the cushion system  10  when a bather lies/leans/abuts on the cushion member  12  will be spread onto the lateral wall  6  of the bathtub  1  through the contact surface therebetween. Otherwise, in instances where the cushion member  12  is spaced from the lateral wall  6  (such as with suction cups as described in the prior art), the cushion member  12  would deform to come in contact with the lateral wall  6  upon being leaned/lied upon, possibly resulting in lateral forces on the magnets/suction cups, which ultimately could dislodge the cushion member  12 . 
     The cushion member  12  of the cushion system  10  may hence be of various shapes and colors, so as to marry the shape of the lateral wall of the bathtub. It is also contemplated to have the cushion system  10  positioned on the bottom wall  5  of the bathtub  1  ( FIG. 1 ), for a bather to have an abutment for his limbs. 
     The use of magnetic forces results in the cushion member  12  being potentially removable from the bathtub, according to the preference of a bather. This feature facilitates the maintenance of the cushion member  12 . 
     In some cases, the cushion  12  may be at least partially submerged in the water of the bath. The magnets of the cushion system  10  must in such a case produce a magnetic force of sufficient magnitude so as to overcome buoyancy forces between the cushion member  12  and the water of the bath that would otherwise dislodge the cushion member  12 . 
     Although the cushion system  10  is illustrated as being anchored to a surface of the bathtub  1 , it is contemplated to use the cushion system  10  in other types of tubs and washing/bathing enclosures, such as spas, whirlpools, swimming pools, shower stalls. 
     Although the embodiments illustrated in  FIGS. 2 to 7  are provided with three magnets, namely magnets  20 A,  20 B and  20 C, it is contemplated to provide the cushion system  10  of the present invention with a single magnet (e.g., of greater size), or any other suitable amount (e.g., 2, 4, etc. . . . ). It is pointed out that the magnets will not damage the exposed surface of the bathtub. 
     Referring concurrently to  FIGS. 8 and 9 , a magnet member  50  of the cushion system  10  is shown. The magnet member  50  has a connector portion  52  and a magnet  54  ( FIG. 9 ). The connector portion  52  is provided to connect the magnet  54  to the cushion member  12 . 
     The connector portion  52  has a threaded connector  56  for being screwingly engaged in the cushion member  12 , as is generally shown in  FIG. 10 . An adhesive is typically used on the surface of the threaded connector  56  to secure the connector portion  52  to the cushion member  12 . A receptacle  58  is provided at a free end of the threaded connector  56  so as to accommodate the magnet  54 , as is well shown in  FIG. 9 . It is pointed out that the magnet  54  is partially received in the receptacle  58  in  FIG. 10 . 
     Referring concurrently to  FIGS. 10 and 11 , the cushion member  12  is shown having depressions  60  in its second surface  16 . Accordingly, when the magnet members  50  are secured to their use position, as is shown for magnet member  50 B in  FIG. 11 , the magnet members  50  are accommodated within the respective depressions  60 . For instance, in  FIG. 12 , both magnet members  50 A and  50 B are in their use position. This feature ensures that the contact surface between the tub wall and the cushion system  10  is maximized. A cap is then be used to conceal the magnet  54  within the receptacle  60 . 
     The cushion member  12  is made any of a plurality of materials, from which the cushion member  12  will benefit from the characteristics. For instance, the cushion member may be resilient as a user person will lie/abut thereagainst when taking a bath. The cushion member  12  may have an impermeable coating, or impermeable properties, so as not to absorb water. The cushion member  12  may be inflatable, to facilitate its storage and to offer various levels of cushioning. 
     It is within the ambit of the present invention to cover any obvious modifications of the embodiments described herein, provided such modifications fall within the scope of the appended claims.