U.S. patent number 3,755,830 [Application Number 05/146,920] was granted by the patent office on 1973-09-04 for portable bathtub.
Invention is credited to Mary K. Johns.
United States Patent |
3,755,830 |
Johns |
September 4, 1973 |
PORTABLE BATHTUB
Abstract
A portable bathtub having a frame portion, a liner portion, and
leg portions which facilitate use of the bathtub on a carrier
surface such as on a stretcher. The frame includes a horizontally
disposed, open center member made up of a plurality of telescoping
portions. The dimensions of the open center of the frame are larger
than the carrier surface. The legs are pivotally attached to the
frame, and at least two of the legs are contoured so that upon
selected rotation thereof the bottom support end can be located in
different lateral positions whereby upon positioning the legs
inwardly the tub can be supported on a stretcher and upon
positioning the legs outwardly the frame can be lowered below the
carrier surface with the liner thereof draped over the carrier
surface and the frame and leg portions hanging down the sides,
whereby to provide a flush surface on the carrier for easy movement
of patients onto the carrier surface.
Inventors: |
Johns; Mary K. (Kalama,
WA) |
Family
ID: |
22519578 |
Appl.
No.: |
05/146,920 |
Filed: |
May 26, 1971 |
Current U.S.
Class: |
4/585; 248/167;
248/188.1; 5/312; 248/188 |
Current CPC
Class: |
A47K
3/06 (20130101); A61G 7/0005 (20130101) |
Current International
Class: |
A61G
7/00 (20060101); A47K 3/02 (20060101); A47K
3/06 (20060101); A47k 003/06 () |
Field of
Search: |
;4/173,177,185L,185S
;248/167,188,188.1 ;211/178R ;5/312 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Perlin; Meyer
Assistant Examiner: Capossela; Ronald C.
Claims
Having thus described my invention, I claim:
1. A portable bathtub comprising an open center horizontal frame, a
flexible liner member mounted on said frame arranged to form a
receptacle to receive a person, and a plurality of support legs
connected to said frame in depending relation and having bottom
support ends, said legs being pivotally attached on a vertical axis
to said frame at their upper ends, said legs being angled from
their connection with the frame and the bottom support ends being
adjusted in a lateral position relative to the frame upon selected
rotative positioning of the legs.
2. The portable bathtub of claim 1 wherein said frame is composed
of telescoping sections facilitating compactness in shipment and
storage, said telescoping sections having apertures for receiving
the vertical pivot attachment of said legs, said apertures being
provided in said sections at telescoping portions thereof whereby
the vertical pivot attachments of said legs serve to connect said
sections together.
3. The portable bathtub of claim 1 in combination with a supporting
surface, said frame having an interior dimension greater than said
supporting surface, said legs being selectively angled such that in
an inwardly turned position they are capable of being seated on
said supporting surface and in an outwardly turned position they
are capable of moving down below said supporting surface with the
frame so as to hang with said frame from said liner.
Description
BACKGROUND OF THE INVENTION
This invention relates to a new and novel portable bathtub.
Portable bathtubs have heretofore been devised for bathing persons
in bed or the like. For example, U.S. Pat. Nos. 755,747, 1,451,437
and 3,373,451 relate to such devices. The structures shown in these
listed patents are not entirely satisfactory, however, because no
provision is provided for readily placing a person therein or too
of providing a structure which permits it to be conveniently and
safely supported on a carrier such as a wheeled stretcher. An
urgent need thus exists for a portable bathtub structure which has
versatile use in hospitals, rest homes and the like where patients
are bedfast or otherwise have difficulty in bathing in a
conventional tub or shower.
SUMMARY OF THE INVENTION
According to the present invention and forming a primary objective
thereof, a portable bathtub is provided having a novel structure
which facilitates its convenient use with patients who otherwise
find it difficult to bathe.
More particularly, an object of the invention is to provide a
portable bathtub having a novel frame and flexible liner which can
be supported either on the top of a carrier surface such as a
conventional wheeled stretcher by leg means thereon or be draped
over the stretcher surface by the liner with the frame and legs
hanging down alongside the stretcher, whereby a patient can be
moved directly from the bed onto the stretcher for bathing. Such
object is accomplished by an enlarged dimension of the frame
relative to the carrier surface and by a pivotal attachment of at
least two of the legs which are contoured so that when pivoted
toward a center position, the frame of the bathtub is supported on
the top of the carrier surface but when rotated away from center
the said frame and legs can hang down alongside the carrier to
allow the liner to lie flat on the carrier surface similar to a
sheet.
Another object of the present invention is to provide a novel frame
structure which is constructed of several pieces for compactness in
shipping and storage. The frame also has a novel assembly with the
supporting legs and in its assembled condition is capable of use on
substantially any width of stretcher.
Still another object of the present invention is to provide a novel
flexible tub liner for support on a frame, including a novel drain
facilitating connection to existing drain means.
The invention will be better understood and additional objects and
advantages will become apparent from the following description
taken in connection with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a frame and supporting leg
structure of the present portable bathtub;
FIG. 2 is a perspective view of the tub fully assembled with liner
and supported on a carrier;
FIG. 3 is a cross sectional view taken on the line 3--3 of FIG. 2
and showing in phantom lines a lowered position of the tub with the
liner draped over the carrier; and
FIG. 4 is an enlarged sectional view taken on the line 4--4 of FIG.
1.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENT
Referring in particular to the drawings, the portable bathtub of
the present invention comprises an open center frame 10 preferably
made up of a pair of tubular side pieces 10a and tubular U-shaped
end pieces 10b. The ends of the side pieces 10a have telescoping
engagement with the arms of the end pieces 10b for assembly.
Although no particular telescoping arrangement is important, the
drawings show the end pieces telescoped within the side pieces 10a,
it only being desired that the length of telescoping relationship
be sufficient to provide a rigid longitudinal connection.
Each of the frame pieces 10a and 10b has vertical apertures 12 for
receiving legs 14. These legs have an upper spindle portion 16
adapted to extend up through the apertures 12. Since the legs
extend through both the apertures in the side pieces 10a and end
pieces 10b, the respective frame pieces 10a and 10b are held
together thereby. The spindles 16 have a pivotal connection in the
apertures so that the legs can be rotatably adjusted for a purpose
to be described. A portion of the leg spindle 16 projects above the
frame and has an end cap 18 thereon.
Each of the legs has an angled portion 20 which vertically offsets
the bottom support end 22 of the leg from the spindle portion 16
for a purpose to be described hereinafter. Preferably, each leg has
a leg holding band or washer 24 at the lower end of the spindle 16.
The lower ends of the legs have end cups 25 in a usual manner.
A flexible waterproof liner 26 is carried inside the frame 10 and
has a portion 28 which extends over the top of the frame. Mating
snap members 30 are provided on the body portion 26 of the liner
and on the portion 28 so that the latter upon being folded over the
frame can be connected to the body portion of the liner for holding
the latter on the frame.
One end of the liner 26 has a drain fitting 32, best seen in FIG.
4, comprising a top flange 34 having a watertight secured
connection to the liner. A projecting threaded portion 36 of the
fitting extends down through a suitable aperture in the liner, and
this projection is constructed for threaded connection with a
female hose fitting 38 of a conventional drain hose 40. A stopper
42 is provided to plug the fitting 32 when the tub is in use.
The present bathtub is versatile and convenient in its usage. To
assemble the tub, the frame parts are fitted together in their
telescoping relation and the legs inserted to hold the frame
portions together. End caps 18 and 25 are also applied. The liner
is then placed inside the frame 10 with the portion 28 extending
down over the outside of the frame and connected to the body of the
liner by the snaps 30. The drain hose is brought up through the
hand holds and threadedly connected to the drain fitting 32. With
the stopper 42 in place, the tub can be filled by any suitable
means, and upon completion of the treatment for the patient, the
stopper is removed and the tub drained.
One important feature of the present portable bathtub is that it
can be used on a conventional wheel type stretcher. Such a
stretcher is shown in FIG. 2 and is designated by the numeral 44.
As is well known, such stretchers have a top surface 46 supported
by a wheeled frame 48. By using the present bathtub structure on a
stretcher 44, the facilities of a bath or other treatment can be
taken directly to the patient if necessary. Furthermore, a bedfast
patient can be placed in the tub with ease. That is, in this latter
regard, wheeled stretchers are usually of the same height as a bed,
or too the bed may be vertically adjustable, so that a patient can
be slid directly from the bed onto the stretcher or vice versa. In
applicant's bathtub structure, the inner dimensions of the frame
10, both in its length and width, are greater than the stretcher
surface and the contour of the legs is such that when turned
inwardly they engage the stretcher surface and support the tube on
the said stretcher surface. When the legs are turned outwardly,
however, the frame and legs hang down from the liner below the
stretcher surface, the liner being draped over the stretcher
surface as shown in phantom in FIG. 3. With the stretcher placed up
against the side of the bed, and the tub lowered, a patient can be
slid over onto the stretcher on top of the liner. Thereupon, the
frame 10 is lifted and the legs turned inward for engaging the top
of the stretcher. The tub can then be filled or the patient treated
as necessary, assuming of course that stopper 42 has been put in
place. After treatment, the liquid is removed by taking out the
stopper. The frame is lowered by rotating the legs again to their
outward position to hang down alongside the stretcher. The patient
can then be slid back into bed.
The structure of the present bathtub has many other features in its
construction and use. For example, the frame and liner arrangement
make it such that the full weight of the patient is on the
supporting surface, not on the tub, so that should one or more of
the legs accidentally be displaced from the top surface of a
stretcher the patient would remain on the stretcher, there possibly
at worst being only a partial loss of water from the tub. Another
feature is that the present tub can be placed on the floor for
ready access to a patient who can get out of bed. Also, the tub can
be disassembled for easy cleaning and also for convenient shipment
and storage. The liner 26 is constructed of any suitable material
which is durable, is resistant to disinfectants or other cleansing
chemicals ordinarily used in hospitals or rest homes. The present
bathtub can also be used conveniently to bathe a patient in a bed.
Such is accomplished by first removing the four legs, then sliding
the frame with the liner therein under a patient, and then lifting
the frame and reinserting the legs.
It is to be understood, that the form of my invention herein shown
and descibed is to be taken as a preferred example of the same and
that various changes in the shape, size and arrangement of parts
may be resorted to without departing from the spirit of my
invention or the scope of the subjoined claims. For example, it may
not be necessary that all the legs 14 be pivotal since by suitable
contouring of at least two of the legs, it may be possible to lower
the frame down by turning such two legs outwardly. With all the
legs being pivotal, however, the present frame can be supported on
practically all existing wheeled stretchers and also can be laid
flat thereon with the legs extending down alongside the stretcher.
Although the device of the invention is termed a bathtub, it is to
be understood that it may have any other use which requires a wet
treatment or the like.
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