U.S. patent number 3,692,358 [Application Number 05/151,214] was granted by the patent office on 1972-09-19 for foldable article of furniture.
Invention is credited to Albert Y. Sung.
United States Patent |
3,692,358 |
Sung |
September 19, 1972 |
**Please see images for:
( Certificate of Correction ) ** |
FOLDABLE ARTICLE OF FURNITURE
Abstract
An article of furniture movable between an erect position and a
folded generally planar position is provided including a top planar
supporting surface formed by two mating halves when the article is
in its erect position. A first pair of braces are secured to the
undersurface of one of the halves and extend in a direction normal
to the line of mating of the halves and under the undersurface of
the other of the halves to support the other of the halves when the
article is in its erect position. A second pair of braces are
spaced inwardly of the first pair of braces and are secured to the
undersurface of the other of the halves and extend in a direction
opposite to the first pair of braces and under the undersurface of
the first of the halves to support the first of the halves when the
article is in its erect position. Leg members for supporting the
article in its erect position are pivotally secured to the free
ends of the braces and cross on opposite sides of the top surface
and are pivotally connected at their point of crossing. A bar is
pivotally connected to the second pair of braces and the leg
members pivotally connected thereto to provide both a support for
the underside of the half having the first pair of braces secured
thereto and a handle for carrying the article when it is folded
into its generally planar position.
Inventors: |
Sung; Albert Y. (Los Altos,
CA) |
Family
ID: |
22537790 |
Appl.
No.: |
05/151,214 |
Filed: |
June 9, 1971 |
Current U.S.
Class: |
297/158.4;
108/105; 108/120; 108/118; 248/432 |
Current CPC
Class: |
A47B
3/02 (20130101); A47B 3/14 (20130101); A47B
2003/025 (20130101) |
Current International
Class: |
A47B
3/02 (20060101); A47B 3/00 (20060101); A47B
3/14 (20060101); A47b 039/00 () |
Field of
Search: |
;297/157,159
;108/119,118,120,90 ;248/432,164,431 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Gay; Bobby R.
Assistant Examiner: Moore; Garry
Claims
I claim as my invention:
1. An article of furniture movable between an erect position
forming said article of furniture and a folded generally planar
position for carrying said article comprising:
a top member composed of two mating halves forming a planar
supporting surface when said article is in its erect position;
a first pair of elongated brace members fixedly secured at one end
to the undersurface of one of said halves on each side thereof and
extending in a direction substantially normal to the axis passing
through the point of mating of said halves and the other end
thereof extending along the undersurface of the other of said
halves to generally the outer limit thereof to provide a support
for the undersurface of the other of said halves when said article
is in its erect position;
a second pair of elongated brace members fixedly secured at one end
to the undersurface of the other of said halves on each side
thereof and spaced inwardly of said first pair of brace members
when said article is in its erect position, said second pair of
brace members extending in the opposite direction as said first
pair of brace members and also substantially normal to the axis
passing through the point of mating of said halves with the other
end of each of said second brace members extending along the
undersurface of the first of said halves to generally the outer
limit thereof to provide a support for the undersurface of the
first of said halves when said article is in its erect
position;
leg members for supporting said article when in an erect position
pivotally connected to the free ends of each of said brace members,
the pair of said leg members connected to the brace members on
opposite sides of their respective halves crossing each other and
being pivotally connected at their point of crossing; and
means extending between the second pair of brace members at their
other ends and pivotally connected to both said second pair of
brace members and the leg members pivotally connected thereto for
providing both a support for the underside of said half having said
first pair of brace members fixedly secured thereto when said
article is in its erect position and a handle for carrying said
article when said article is in its folded generally planar
position.
2. The article of furniture of claim 1 wherein each of said pair of
brace members extend along and are secured to their respective
halves along generally the entire undersurface thereof from one
side of said halves to the other.
3. The article of furniture of claim 1 wherein said means is a
cylindrical rod.
4. The article of furniture of claim 1 wherein said halves are
comprised of a plurality of spaced slats secured to their
respective brace members.
5. The article of furniture of claim 4 including spacer means
associated with at least one of said halves at the point of mating
of said halves when said article is in its erect position for
spacing one of said halves from the other.
6. The article of furniture of claim 5 wherein said spacer means
includes a pair of spacer members secured to one of said halves and
occupying a space formed between said halves when said article is
in its erect position generally related to the spaces between said
slats forming said halves and having upper surfaces substantially
flush with the upper surfaces of said slats.
7. The article of furniture of claim 6 wherein said spacer members
are generally as wide as the brace members associated with the half
to which they are secured in a direction parallel to the axis
passing through the point of mating of said halves.
8. The article of furniture of claim 1 including bracing means
secured to and extending between the leg members pivotally secured
to both said first pair of brace members and said second pair of
brace members for bracing all of said leg members.
9. The article of furniture of claim 8 wherein said bracing means
includes at least one slat member having the plane thereof
substantially normal to the plane of said leg members to which they
are secured, said plane of said slat members being generally
coincident with the plane of the half of said top member pivotally
secured to each pair of respective leg members when said article is
in its folded generally planar position.
10. The article of furniture of claim 1 including at least a second
planar surface associated with the leg members of said article of
furniture disposed below said first-mentioned planar surface and
being generally horizontal on its upper surface when said article
is in its fully erect position.
11. The article of furniture of claim 10 wherein a plurality of
rods are pivotally connected to all of said leg members below said
top planar surface and extend in a direction generally horizontal
to said top planar surface when said article is in its fully erect
position and generally parallel to its respective leg member when
said article is in its fully folded position, and one second planar
surface being secured to the pair of rods connected to the leg
members on one side of said article of furniture and another second
planar surface being secured to the pair of rods connected to the
leg members on the other side of said article of furniture.
12. The article of furniture of claim 11 wherein both said second
planar surfaces are comprised of a plurality of slats secured to
their respective rods, the planes of said last-mentioned slats
being generally coincident with the half on the respective side of
said article of furniture when said article of furniture is in its
fully folded position.
13. The article of furniture of claim 11 including means associated
with said leg members and said rods for supporting said second
planar surfaces in a generally horizontal position when said
article is in its fully folded position.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to articles of furniture; and, more
particularly, to an article of furniture movable from an erect
position forming a supporting surface to a folded generally planar
position having a handle for carrying the folded article of
furniture.
2. Description of the Prior Art
With the increased mobility of modern living and the utilization of
more leisure time and recreational activities, a need exists for
furniture which can be both carried conveniently from one place to
another or used in confined or limited areas, such as campers,
trailers, etc. One suggested type of furniture is a collapsible or
foldable article which can be stored in relatively small spaces,
then quickly erected to provide a supporting surface. Such articles
of furniture generally include benches, chairs, tables, etc., and
are light-weight enough that they may be conveniently carried from
one place to another.
However, known prior art foldable or collapsible articles of
furniture present many problems. Such articles generally are not
conveniently movable when in their folded position, thereby
requiring independent means for both maintaining the various
components making up the article in a folded or collapsed position
and other means for conveniently grasping the folded or collapsed
article for carrying it. If such independent means are eliminated,
as by an attempt to build them into the article itself, the article
may not be strong enough to support a reasonable use thereof, such
as use as a chair or the like.
For example, one such folding sectional article of furniture is
described in a U.S. Pat. to Thompson, No. 2,587,010. However, the
article of Thompson requires an independent special handle for
carrying his article in its folded position, thus adding to the
manufacturing costs. Further, as can be seen in FIG. 1 of the
Thompson patent, the braces 7, 8 of Thompson do not support the
full length undersurface of the top supporting surfaces 1, 2. This
is to allow full interfitting folding of the parts of his article
to form the completely flat planar package of FIG. 6. However, this
results in a large unsupported area on each side of top surfaces 1,
2. Also, the surfaces 1, 2 are flat and planar and could not be
slatted or the like, which would be more aesthetically pleasing
since additional support for the slats would have to be provided.
Finally, as can be seen in FIG. 1 of Thompson, pushing down on his
article of furniture along the point of contact of surfaces 1 and 2
might collapse the article.
SUMMARY OF THE INVENTION
It is an object of this invention to provide a foldable article of
furniture which can be readily transported from one place to
another.
It is a further object of this invention to provide a foldable
article of furniture which presents a stable supporting top planar
surface.
It is a still further object of this invention to provide a
foldable article of furniture having a handle for carrying the
article in its folded position which also supports the top planar
surface thereof in its erect position.
It is a still further object of this invention to provide such an
article of furniture which takes up relatively little storage space
in its folded or collapsed position.
These and other objects are preferably accomplished by providing an
article of furniture which is movable between an erect position and
a folded generally planar position including a top planar
supporting surface formed by two mating halves when the article is
in its erect position. A first pair of braces are secured to the
undersurface of one of the halves and extend in a direction normal
to the line of mating of the halves and under the undersurface of
the other of the halves to support the other of the halves when the
article is in its erect position. A second pair of braces are
spaced inwardly of the first pair of braces and are secured to the
undersurface of the other of the halves and extend in a direction
opposite to the first pair of braces and under the undersurface of
the first of the halves to support the first of the halves when the
article is in its erect position. Leg members for supporting the
article in its erect position are pivotally secured to the free
ends of the braces and cross on opposite sides of the top surface
and are pivotally connected at their point of crossing. A bar is
pivotally connected to the second pair of braces and the leg
members pivotally connected thereto to provide both a support for
the underside of the half having the first pair of braces secured
thereto and a handle for carrying the article when it is folded
into its generally planar position. The leg members may include
either brackets thereon for bracing the leg members whereby the
article may be used as a chair or the like, or a second planar
supporting surface below the first supporting surface whereby the
top surface may be used as a table or the like and the bottom or
second surface may be used as a bench or the like for the
table.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a vertical side view of an article of furniture in
accordance with my invention in its fully unfolded or erect
position;
FIG. 2 is a vertical front view of the article of furniture of FIG.
1 with portions thereof broken away for convenience of
illustration;
FIG. 3 is a vertical side view of the article of furniture of FIG.
1 showing the first step in moving it to its folded position;
FIG. 4 is a vertical side view of the article of furniture of FIG.
1 showing the second step in moving it to its folded position;
FIG. 5 is a vertical front view of the article of furniture of FIG.
1 in its fully folded position;
FIG. 6 is a vertical side view of the folded article of furniture
of FIG. 4;
FIG. 7 is a perspective view of a modification of the article of
furniture of FIG. 1; and
FIG. 8 is a detailed view of a portion of the article of furniture
of FIG. 7.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIG. 1 of the drawing, an article of furniture 10 is
shown in its fully erect position. As can be seen in FIGS. 1 and 2,
the article of furniture 10 is in the general form of a chair,
stool, bench, table, or the like, having an upper planar surface 11
when in its fully erect position. Planar surface 11 is comprised of
a pair of mating halves 12 and 13 (see also FIGS. 3 and 4) formed
of a plurality of slats 14 or the like. When the article of
furniture 10 is in its fully erect position of FIGS. 1 and 2,
halves 12 and 13 meet generally at the midpoint of top planar
surface 11.
The slats 14 forming the half 13 of top planar surface 11 are
secured to, as by gluing or the like, a pair of elongated brace
members 16 and 17 (see FIGS. 2 and 5 for brace member 16). As can
best be seen by a comparison of FIGS. 4 and 5, brace members 16 and
17 are disposed on each side of half 13 and extend from one end of
half 13 to the undersurface of the slats 14 forming the other half
12. Since, as will be discussed further hereinbelow and can best be
seen in FIG. 5, the slats 14 extend past the brace members on both
halves 12 and 13, brace members 16 and 17 also act as a support for
half 12 when the article of furniture 10 is in its fully erect
position (FIG. 1).
The slats 14 of the other half 12 are also secured to a pair of
elongated brace members 18 and 19 (see also FIG. 5), which members
18 and 19 are also disposed on each side of half 12 and extend from
one end thereof along the undersurface of half 13 to also act as a
support therefor. These latter brace members 18 and 19 are spaced
inwardly of brace members 16 and 17 for reasons to be discussed
hereinbelow. Also, they extend in a direction opposite to each
other and normal to the axis passing through the point of mating of
the halves 12 and 13.
Leg members 20 through 23 are pivotally connected, as by pivot pins
24 through 27, respectively, or the like, to the free ends of brace
members 16 through 19 (see particularly FIGS. 2 and 5). These leg
members 20 through 23 may be canted or the like, as at cant 28, for
example, on their lower ends so that top planar surface 11 is
generally horizontal when the article of furniture 10 is placed on
a supporting surface.
The leg members on each side of planar surface 11 cross each other
and are pivotally connected thereto. For example, leg members 20
and 22 cross each other and are pivotally connected by means of
pivot point 29 or the like (FIG. 1). Leg members 21 and 23 cross
each other and are pivotally connected by means of a pivot point 30
or the like. It should be noted that all such pivot points may
include any suitable means, such as a washer 31 and rivet 32 as
shown at point 30 with the head of rivet 32 and washer 31 being
countersunk so that no interference is presented when the article
of furniture 10 is moved between its folded and erect positions.
This is also true of all the pivot means disclosed herein.
Preferably, opposed leg members are braced to provide a more stable
base of surface 11. For example, one or more members such as a slat
33 preferably extends between and is secured to leg members 22 and
23 (see FIGS. 2 and 5) while one or more members such as a slat 34
preferably extends between and is secured to leg members 20 and 21
(not visible in FIGS. 2 and 5). The slats 33 and 34 are preferably
flush with the edges of their respective leg members (see FIG. 2)
so that when the article of furniture 10 is moved from its folded
to its erect position, the halves 12 and 13 are grasped rather than
slats 33 and 34 which are not as well supported.
It can be seen in FIG. 5 that the spacing between brace members 16
through 19 and leg members 20 through 23 is such that these
elements can move about their respective pivots with respect to
each other. Further, in addition to the support for halves 12 and
13 provided by brace members 16 through 19, a member 35 or the like
in the preferred form of a cylindrical rod extends between inner
brace members 18 and 19 (see FIGS. 2 and 5). This member 35 is
pivotally secured to both brace member 19 and leg member 23 at one
end and brace member 18 and leg member 22 at the other. The same
pivot means used to pivotally connect brace members 18 and 19 to
leg members 22 and 23, respectively, is preferably used to
pivotally connect member 35 thereto.
As can be seen in FIG. 2, in the fully erect position of the
article of furniture 10, the member 35 supports the undersurface of
half 13. In the fully folded position of FIG. 5, member 35 is at
the top thereof and can be used as a handle to conveniently carry
the folded article of furniture.
As can be seen in FIGS. 1 and 4, a pair of spaced elements 36 are
associated with one or both of the halves 12 or 13, such as being
secured to half 13, and may also be secured to brace members 16 and
17, if desired. These elements 36 are of a width generally related
to the distance between slats 14 and are generally as wide as the
upper surface of brace members 16 and 17. Since these spacer
elements 36 are associated with the slat which is adapted to mate
with the leading slat on the other half to form top planar surface
11, the distance between halves 12 and 13 is maintained generally
equal to the distance between the slats 14 to give an aesthetically
pleasing appearance to surface 11.
Referring back to FIG. 1, the article of furniture 10 is in its
fully erect position. The two halves 12 and 13 are grasped and
pulled upwardly and outwardly to the position shown in FIG. 3
whereby leg members 20 through 23 pivot about pivot points 24
through 27, 29 and 30. The pivoting of the article of furniture 10
is continued to the FIG. 4 position wherein the upper portions of
pivot points 24 through 27 come together in a generally axial line
when halves 12 and 13 are moved downwardly until the brace members
16 through 19 and leg members 20 through 23 are generally parallel
to each other. The final folded position is shown in FIGS. 5 and 6.
It can thus be seen how the article of furniture 10 can be readily
and easily moved back and forth between its fully erect and fully
folded positions. In the fully folded position, the folded article
presents a generally planar position (see particularly FIG. 6)
wherein the member 35 can be used as a handle to carry article 10
and all of the slats 14 on half 12 lie generally in the same plane
as slat 34 and the slats 14 on half 13 lie generally in the same
plane as slat 33 and all of the brace and leg members are generally
parallel to each other.
The article of furniture 10 of FIGS. 1 through 6 may be of any
convenient size and thus surface 11 could be used as a seat, table
top, etc. However, the teachings of my invention may be applied to
an article of furniture wherein, in addition to a table top or the
like, one or more seats may be built into such article of
furniture. For example, referring now to FIGS. 7 and 8 wherein like
primed numerals refer to like parts of the article of furniture 10
of FIGS. 1 through 6, an article of furniture 37 is shown. However,
in place of slats 33 and 34 of the article of furniture 10, a
plurality of supporting brackets or rods are pivotally connected to
leg members 20' and 21' respectively (only rods 38 through 40 and
pivot points 41 and 42 being visible in FIG. 7). Since the rods on
leg members 20' and 21' are on the outside thereof while the rods
on leg members 22' and 23' are on the inside thereof, they are
adapted to pivot to a position parallel to their respective leg
members when the article of furniture 37 is in its folded position.
One or more slats 43 and 44 are secured to the upper surfaces of
the rods as shown in FIG. 7 to present a generally horizontal
planar surface below top surface 11' to provide a seat for surface
11' (which may be a table top). Since the rods connected to slats
43 and 44 pivot to a position parallel to their leg members in the
folded position of the article of furniture 37, the slats 43 and 44
also move to a position wherein the planes thereof are generally
coincident with the planes of the folded halves forming top planar
surface 11' in the manner discussed hereinabove with respect to
slats 33 and 34 and halves 12 and 13 of the article of furniture
10.
Referring now particularly to FIG. 8, means are provided for
maintaining the upper surfaces of slats 43 and 44 in a generally
horizontal position and supporting slats 43 and 44 when the article
of furniture 37 is erected for use as a table or the like. Thus,
braces 45 may be pivotally connected, as at pivot point 46, to
their respective rods (rod 38 shown in FIG. 8). A groove 47 or the
like is preferably formed on the bottom of each brace 45. A pin 48
or the like is disposed on the leg member (20' shown in FIG. 8).
Thus, when brace 45 is in a generally vertical position, pin 48
enters groove 47 to support slats 43 in a generally horizontal
position. Of course, any suitable means may be provided to maintain
slats 43 and 44 in a generally horizontal position. The only
requirement is that such means be movable or pivotable to "fold up"
when the article of furniture 37 is in its folded position and the
pivot means not interfere with such folding. Thus, the braces 45
for the rods of slats 43 are on the outside of legs 20' and 21'
while the braces 45 for the rods of slats 44 are on the inside of
legs 22' and 23'.
It can be seen from the foregoing that I have described articles of
furniture which are aesthetically pleasing to the eye, provide
sufficient support to bear the weight to which such articles are
subjected, can be quickly moved between fully folded and erect
positions, take up very little storage space in the folded
position, and provide a handle which is also a support member for
the article to carry the article from one place to another.
* * * * *