U.S. patent number 3,584,914 [Application Number 04/747,933] was granted by the patent office on 1971-06-15 for inflatable furniture.
Invention is credited to Colin P. Williams.
United States Patent |
3,584,914 |
Williams |
June 15, 1971 |
INFLATABLE FURNITURE
Abstract
The invention is a seatless inflatable chair which is
substantially triangular in plan, the chair comprising in
combination a base and two inflatable sides, and being such that a
person seated therein will be supported by the sides and will have
their buttocks situated in space bounded by the base and the sides.
The chair may be made from polyvinyl chloride and the two sides of
the chair may increase in height towards the apex of the triangle
to form a back support from a person seated in the chair.
Inventors: |
Williams; Colin P. (Carshalton
Beeches, Surrey, EN) |
Family
ID: |
9836589 |
Appl.
No.: |
04/747,933 |
Filed: |
July 26, 1968 |
Foreign Application Priority Data
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|
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|
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Feb 16, 1968 [GB] |
|
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7619/68 |
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Current U.S.
Class: |
297/452.41;
52/2.21 |
Current CPC
Class: |
A47C
4/54 (20130101) |
Current International
Class: |
A47C
4/54 (20060101); A47C 4/00 (20060101); A47c
027/08 (); A47c 027/18 () |
Field of
Search: |
;297/248,445,454--456,462,232 ;5/337,348 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Nunberg; Casmir A.
Claims
I claim:
1. A seatless inflatable chair which is substantially triangular in
plan, the chair comprising in combination a base and two inflatable
sides and being such that a person seated therein will be supported
by the sides and will have their buttocks situated in a space
bounded by the base and the sides.
2. An inflatable chair according to claim 1, in which the base is
inflatable.
3. An inflatable chair according to claim 2 in which the two sides
increase in height towards the apex of the triangle to form a back
support for a person seated in the chair.
4. An inflatable chair according to claim 3 in which at least the
two sides are ribbed.
5. An inflatable chair according to claim 1 in which at least two
parts of the chair are separately inflatable.
6. An inflatable chair according to claim 5 in which the sides and
the base are separately inflatable.
7. An inflatable chair according to claim 6 in which each side is
formed from two separately inflatable bags.
8. An inflatable chair according to claim 1 which is made from
polyvinyl chloride.
9. An inflatable chair according to claim 1 having at least one
attachment point for enabling two chairs to be retained together.
Description
This invention relates to a seatless inflatable chair which may be
used in the home or garden or on the beach or water.
An inflatable chair according to the invention is one which is
substantially triangular in plan, the chair comprising in
combination a base and two inflatable sides, and being such that a
person seated therein will be supported by the sides and will have
their buttocks situated in space bounded by the base and the
sides.
Preferably the base is also inflatable and in one arrangement of a
chair the two sides increase in height towards the apex of the
triangle to form a back support for a person seated in the chair.
The back support may in some arrangements extend sufficiently high
to form a head rest or, alternatively, a head rest may be formed
from a separately inflatable bag.
At least the two sides may be ribbed to add rigidity to the chair.
Since the chair may be used on water, it may be desirable to form
the chair such that at least two parts, for example both sides and
the base, are separately inflatable so that loss of air in one part
will not cause the chair to sink. In a preferred embodiment, each
side is formed from two separately inflatable bags, conveniently by
welding together opposing sidewalls of a single bag along a line to
form two bags. Obviously, there will be the same number of
inflation points in the chair as there are separately inflatable
parts.
Each inflation point may comprise a tube closeable by a stopper.
Preferably, the stopper will be attached to the tube to ensure that
it is always readily available. Also preferably, each inflation
point has a flap which normally seats against the inside of the
tube and thus provides a means additional to the stopper for
preventing air from accidentally escaping from the chair. The flaps
will of course be displaced by air pumped into the chair to inflate
it, the chair being deflated when desired by distorting the tubes
to prevent the flaps seating thereagainst in an airtight
manner.
Alternatively, each inflation point may comprise a nonreturn
ball-type valve, the inflation point then not protruding
substantially above the surface of the chair.
Normally, the chair will be inflated by mouth or a pump. However,
the chair can be inflated by compressed air or other gas from an
appropriately pressurized container. The pump or pressurized
container may or may not be attached to the chair.
The chair may be made from any suitable material which can be
welded or otherwise formed into an inflatable container. Of the
plastics materials available, polyvinyl chloride is presently
preferred. The chair may be made from 0.010--0.020 inch and
preferably 0.012 inch thick material although thicker or thinner
material may be used if desired. The material may be plain,
multitone or patterned, with a smooth or raised surface.
Whilst the chair will normally be such as to have a hole extending
completely through its center, the chair may be provided with
points for attaching canvas or other suitable material to provide a
deformable base to actually sit on or to act as a container. The
attachment points, or similar points, may be used to fix two or
more chairs together. Appropriately inflated and joined chairs may
form a setteelike arrangement for use on land or a canoelike or
boatlike arrangement for use on water.
Parts of the chair that are likely to encounter more severe wear
than other parts may be reinforced, for example integrally with a
double thickness of the material from which the chair is made or
separately with a loose outer covering of fabric, rope or nylon
cord.
When the chair is inflated it will conform to the shape of the
person sitting therein and will thus normally prove equally
comfortable to all sizes of persons.
The invention will now be described by way of example with
reference to the accompanying drawings in which:
FIG. 1 is a top view of a chair in accordance with the
invention;
FIG. 2 is a perspective view of the chair shown in FIG. 1 looking
from the front and above;
FIG. 3 is a side elevation of the chair shown in FIG. 1; and
FIG. 4 is a perspective view of the chair shown in FIG. 1 looking
from the rear.
Referring to the drawings, a chair 2 comprises two sides 4, 6 and a
base 8. The side 4 consists of two separately inflatable bags 10
and 12 and the side 6 consists of two similar separately inflatable
bags 14 and 16. The bags 12 and 16 are smaller than the bags 10 and
14 and rest on the ground when the chair is in use where they act
as springs or air cushions for the larger bags 10 and 14. The bags
10, 12, 14, and 16 and the base 8 are each separately inflatable
from inflation points 18.
The sides 4, 6 and the base 8 are formed from polyvinyl chloride
material, there being a surplus of the material at each end of the
sides and base for enabling the sides and base to be welded
together to form the assembled chair 2. The sides 4 and 6 increase
in height (due to appropriately shaped bags 10 and 14) up to a
maximum at 22 to form a back support for a person seated in a
central aperture 24 bounded by the sides 4, 6 and the base 8.
The inflation points 18 comprise tubes 20 having stoppers 22
attached thereto. Flaps (not shown) are provided at the bottom of
the inside of the tubes 20, which flaps are displaced by air pumped
into the chair 2 to inflate it. However, when air is not being
pumped into the chair, any air inside the chair causes the flaps to
seat up against the tubes 20 thereby blocking the tubes and
providing a means additional to the stoppers 22 for preventing air
from accidentally escaping from the chair. The chair 2 may be
intentionally deflated by distorting the tubes 20 so that the flaps
cannot seat against the tubes in an airtight manner.
* * * * *