U.S. patent number 3,863,404 [Application Number 05/386,900] was granted by the patent office on 1975-02-04 for building construction.
This patent grant is currently assigned to Building Components Research, Inc.. Invention is credited to Carl D. Wahlquist.
United States Patent |
3,863,404 |
Wahlquist |
February 4, 1975 |
Building Construction
Abstract
A building construction and method for transforming a large open
space into a plurality of smaller spaces. Foldable wall panels are
initially supported upon retractable wheels to facilitate unfolding
and movement of the wall panel to a predetermined position forming
an enclosure. Insulating material having an improved
cross-sectional configuration is situated at panel joints and at
the top and bottom of the panels. An acoustical and hermetic
insulation is formed when an elevated ceiling unit is lowered so as
to rest upon the wall panels. The weight of the ceiling unit
simultaneously (a) displaces the wall panel vertically downward
over the retractable wheels to secure the position of the wall
panels and (b) compresses the insulating material at both the top
and bottom of the wall panel.
Inventors: |
Wahlquist; Carl D. (Woodland
Hills, CA) |
Assignee: |
Building Components Research,
Inc. (Salt Lake City, UT)
|
Family
ID: |
27011650 |
Appl.
No.: |
05/386,900 |
Filed: |
August 9, 1973 |
Current U.S.
Class: |
52/27; 52/69;
52/238.1; 52/143; 52/393 |
Current CPC
Class: |
E04B
1/3445 (20130101) |
Current International
Class: |
E04B
1/344 (20060101); E04b 001/344 () |
Field of
Search: |
;52/71,69,70,238,143,122,393,403,27,28,29,39 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Faw, Jr.; Price C.
Attorney, Agent or Firm: Workman; H. Ross
Claims
What is claimed and desired to be secured by United States Letters
Patent is:
1. A building structure comprising in combination:
a generally vertically oriented folding wall panel mounted upon a
rigid support wall so as to provide limited movement of the wall
panel in the vertical plane;
a ceiling unit suspended above the wall panel, the ceiling unit
comprising means for selectively lowering at least part of the
weight of the ceiling unit upon the unfolded wall panel; and
means interposed above and below the wall panel for forming a seal
when the weight of the ceiling unit is brought to rest upon the
wall panel.
2. A building structure as defined in claim 1 further comprising
downwardly biased castors providing facile movement of the wall
panel across a floor surface, the castors being selectively
telescoped into the interior of the wall panel when the wall panel
is downwarldy displaced in response to the weight of the ceiling
unit upon the wall panel.
3. A building structure as defined in claim 1 wherein said folding
wall panel comprises at least two sections foldable into parallel
relationship one with respect to the other and both with respect to
a third wall and means interposed between each of the wall sections
for forming a seal when the wall sections are fully unfolded.
4. A building structure as defined in claim 1 wherein said ceiling
unit comprises a hinged mounting facilitating arcuate displacement
between a generally horizontal position and an acute angle with
respect to the horizontal, the ceiling unit further comprising
rigid means for engaging the vertical wall panel and for displacing
the vertical wall panel downwardly as the ceiling unit is lowered
to the horizontal position.
5. A building structure as defined in claim 4 wherein said ceiling
unit comprises an air delivery opening and a light source which,
when the ceiling unit is in the general horizontal orientation,
deliver air and light.
6. A building structure as defined in claim 1 wherein said seal
forming means comprises a generally flexible tube having an axially
aligned inwardly directed projection which prevents total collapse
of the tube when the tube is compressed under pressure.
Description
BACKGROUND
1. Field of the Invention
This invention relates to building construction and more
particularly to structure and method for transforming a large space
into smaller spaces.
2. The Prior Art
It has long been desirable to achieve maximum utility of space by
providing structure for selectively dividing a large space into
smaller spaces or rooms. Conventionally, movable wall partitions or
dividers have been used for this purpose. See, for example, U.S.
Pat. Nos. 3,107,400; 3,295,257; 3,331,426.
Numerous problems have traditionally been associated with
conventional wall partitions which have made widespread use either
impractical or undesirable. For example, most wall partitions are
incapable of being situated so as to provide an acoustically and
hermetically insulated space. Where attempts have been made to form
insulated spaces, the structure involved has been undesirably
complex.
While numerous efforts have been made in the prior art to provide
additional rooms (see U.S. Pat. No. 2,395,691 ) a building
construction and method which combines the features of versatility,
rapid and facile assembly and the formation of acoustically and
hermetically insulated sub-spaces has not heretofore been
known.
BRIEF DESCRIPTION AND OBJECTS OF THE INVENTION
The present invention, including structure and method, provides an
assembly of interior wall panels which are easily displaced from a
folded position to an unfolded, enclosure-forming position. An
elevated ceiling unit is lowered upon the unfolded wall panels so
as to form acoustic and hermetic insulation at the top and bottom
panel joints, the weight of the ceiling simultaneously downwardly
displacing the wall panels to secure the wall panels in the
unfolded position.
It is, therefore, a primary object of the present invention to
provide improved structure for dividing a large space into smaller
spaces.
It is another primary object of the present invention to provide an
improved method for dividing a space into smaller spaces.
These and other objects and features of the present invention will
become more fully apparent from the following description and
appended claims taken in conjunction with the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a schematic perspective view of one presently preferred
building construction embodiment of the invention shown in the
partially unfolded position.
FIG. 2 is a schematic plan view of the folding sequence of adjacent
wall panels of the embodiment of FIG. 1.
FIG. 3 is a top plan view of the wall panels of FIGS. 1 and 2
particularly illustrating the attachment thereof to a fixed support
wall.
FIG. 4 is a top plan view of side-by-side wall panels and means for
securing same together, portions being broken away to reveal
interior construction.
FIG. 5 is a fragmentary side elevational view of the wall
securement structure, alternative positions of the structure being
illustrated in broken lines.
FIG. 6 is a side elevational view of the ceiling unit of FIG. 1
shown in the elevated position above a corresponding unfolded wall
panel.
FIG. 7 is a cross-sectional view of retractable wheels carried
within the wall panels of FIG. 1 for facilitating selective lateral
movement thereof.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Attention is now directed to the preferred embodiment of the
invention more particularly set forth in the figures, like parts
having like numerals throughout.
THE STRUCTURE
The preferred embodiment of the building construction of the
present invention, generally designated 10, is shown best in FIG.
1. Generally speaking, the building construction comprises a
plurality of side-by-side distinct enclosures each of which may be
substantially identical to the next. It should be appreciated,
however, that a single enclosure within the space may be made
pursuant to the teachings of this invention.
Each enclosure comprises a ceiling unit generally designated 12
which is arcuately displaceable from the generally horizontal
position shown to the right of FIG. 1 to an elevated position shown
to the left of FIG. 1 in a manner which will be hereinafter more
fully described. Each enclosure also comprises at least one side
panel generally designated 14 and a front panel 16. The front and
side panels are foldable as shown in FIGS. 1 and 2 into a position
parallel with a rigid support wall 18 as shown in FIGS. 2 and
3.
With continued reference to FIG. 3, a generally vertically oriented
annular channel 20 is formed in the support wall 18, the channel 20
having a length extending along the vertical dimension of support
wall 18, the length being at least slightly greater than the
vertical dimension of the side panels 14 and 16. An insert 22,
preferably formed of metal, is nested within the channel 20 and is
provided with outwardly projecting flanges 24 which face the
interior side of the support wall 18. If desired, the insert 22 may
be fixed to the wall 18 with screws or bolts passing through the
flanges 24 into the wall structure. The insert 22 interiorly
defines a track 26, the back face of which presents a plurality of
side-by-side grooves 28. The purpose for grooves 28 will be
hereinafter more fully described.
Into each of the grooves 28 is nested an outwardly projecting guide
30 forming an integral part of partition 32. The mating relation
between guides 30 and grooves 28 restricts side to side relative
movement of the partition 32 and the support wall 18 but
simultaneously accommodates vertical displacement of the partition
32 (i.e., into the plane of the drawing in FIG. 3). The engagement
of the guides 30 and grooves 28 is maintained by flanges 24, the
inside edges of which project into opposed ways 34 extending along
the length of partition 32 adjacent the terminal end thereof.
Accordingly, the partition 32 is allowed to "float" exclusively in
the vertical direction.
At least one hinge 38 has one leg 40 attached to the exposed end 36
of the partition 32. The opposite hinge leg 42 is mounted upon the
inside surface of the side wall panel 14 so that the side wall
panel 14 may be alternately displaced between the illustrated
folded position to the unfolded position shown in broken lines. It
should also be observed that the partition 32 projects away from
wall 18 to allow sufficient space for the front wall panel 16 to be
interposed between the side wall panel 14 and the structural wall
18 in the folded condition.
As shown best in FIGS. 3 and 4, each vertical joint of the building
construction 10 is provided with a tubular insulator 44. While any
suitable insulator providing an acoustic and hermetic seal may be
used, the illustrated insulator 44 is presently preferred. The
tubular insulator is mounted upon one of the surfaces forming the
joint, i.e. along the vertical edge 46 of the side wall panel 14
and also along the vertical edge 48 of the front wall panel 16. The
insulators 44 are formed of a suitable resilient flexible material
such as rubber or neoprene and have a generally tubular
configuration.
An inwardly projecting rib 50 traverses the length of the hollow of
the tubular insulator 44. Significantly, the rib 50 prevents total
collapse of the tubular insulator 44 when the insulator is
compressed by the wall panels 14 and 16 in the unfolded position.
Accordingly, even when collapsed, the insulator 44 provides dead
air space along its length which has the effect of providing
surprisingly effective acoustical insulation in addition to
hermetic insulation. It has also been found highly desirable to
mount the tubular insulators 44 along both the top surfaces 52
(FIGS. 1 and 6) and the bottom surfaces 54 (FIG. 1) of the wall
panels 14 and 16.
As shown in FIG. 2, the wall panels 14 and 16 are unfolded by first
arcuately displacing the wall panels in the direction of arrow 53
until the side wall panel 14 is essentially normal with respect to
support wall 18. Thereafter, the front wall panel 16 is arcuately
displaced along the path defined by arrow 56 to a position
essentially parallel with support wall 18. In this position, the
front wall panel 16 is desirably secured to an adjacent side wall
panel 14 as shown best in FIG. 4.
To insure secure attachment of the side wall panel 14 and adjacent
front wall panel 16, an attachment assembly generally designated 60
is provided. The attachment assembly comprises a plate 62
preferably formed of decorative metal and situated within a
contoured recess 64 formed in the inside surface of the front wall
panel 16. The bracket may be secured in any desirable way such as
with pins 66. A cylindrical bearing 68 is mounted between the plate
62 and support member 70, the cylindrical bearing acting as a
fulcrum for lever 72. Lever 72 has an offset handle 74 and a hooked
leading end 76. A substantial portion of the length of the lever 72
is obscured from view by a decorative face plate 78.
The adjacent side wall panel 14, referred to above, has a generally
L-shaped depending end having short leg 80. The short leg 80 has a
notch 84 into which a metal insert 86 is mounted. The metal insert
is generally U-shaped in cross-sectional configuration (see also
FIG. 5). The metal insert 86 is normally obscured from view by a
decorative face plate 88.
A cylindrical bearing 90 is mounted in the insert 86 so as to be
parallel with the bearing 68. The method for securing side wall
panel 14 to the adjacent front wall panel 16 is best understood by
reference to FIG. 5. When the front wall panel 16 is unfolded and
brought into proximity with the previously unfolded side wall panel
14, the lever 72 is lifted into the broken line position of FIG. 5
to allow the hooked end 76 to pass beneath the bearing 90.
Thereafter, the handle 74 is displaced downwardly as shown in FIG.
5 causing the bearing 90 to move along the surface of the hooked
end 76 to the full line position of FIG. 5. Simultaneously with
downward displacement of the lever 72, the bearing 90 will be drawn
toward the bearing 68 thereby urging wall panels 14 and 16 together
and collapsing tubular insulator 44 (see FIG. 4). A retainer 92,
mounted upon the plate 62, is used to retain the lever 72 in the
full line position of FIG. 5.
In order to release the lever 72 from the retainer 92, the lever is
merely displaced downwardly and then lifted slightly out of the
plane of the drawing as shown in FIG. 5 so that the handle portion
74 can be moved to the broken line position without interference
from the retainer 92.
With continued reference to FIG. 4, it is observed that side wall
panel 14 is connected by hinge 96 to another front wall panel
16.
Displacement of the wall panels 14 and 16 from the folded position
to the unfolded position as shown in FIG. 2 is significantly
facilitated by suspending wall panels 14 and 16 upon a plurality of
roller assemblies 100, one of which is best illustrated in FIG. 7.
Each roller assembly 100 comprises a conventional castor 102
rotatably carried upon an axle 104 held by a generally U-shaped
bracket 106. The bracket is rigidly mounted upon a plunger 108
which is biased into the extended full-line position by a spring
110. The resistance in the spring 110 is selected to be sufficient
to lift the weight of the wall panels 14 and 16. Accordingly, the
wall panels are easily displaced from place to place upon the
roller assemblies 100.
However, when the wall panels 14 and 16 are forced downwardly,
e.g., when the weight of the ceiling unit 12 is allowed to rest
upon the wall panel 14, the resistance of spring 110 is overcome
such that the wall panel 14 is downwardly displaced against the
bias of spring 110 to the broken line position. In the broken line
position, the wall panel is secured in place. In this specification
displaceable wheels means castors or glides which recess into the
wall panels as the panels are downwardly displaced under the weight
of the ceiling unit 12.
Insulators 44, as previously described, are situated both above and
beneath the wall panels 14 and 16. Nevertheless, in order to
facilitate use of the castors 102, a portion of the insulator 44
(not shown in FIG. 7) must be removed from the bottom of the wall
panels. Acoustical and hermetic insulation is improved at the
locations of the castors 102 through the use of a flexible seal 112
mounted to the wall panel and situated on both sides of the castor.
When the wall panel is displaced downwardly with the weight of the
ceiling unit 12, the insulators 112 are compressed against the
floor surface to form a seal.
While movement of the wall panels is preferably accommodated with
castors, clearly any suitable device including glides and the like
could be used to reduce friction between the moving wall panels and
the floor.
The structure and operation of the ceiling unit 12 can best be
understood by reference to FIG. 6. The ceiling unit 12 is connected
by a rotatable hinge 120 to the support wall 18. The hinge permits
the ceiling unit 12 to be arcuately displaced between a horizontal
position and a position acutely angular with respect to the
horizontal. Any suitable conventional means can be used for
displacing the ceiling unit upwardly, including, for example, a
cable and winch assembly. In the elevated position, ceiling unit 12
does not influence the position of the wall panels 14 and 16.
Accordingly, as shown in FIG. 6, wall panel 14 is in an upward
position elevated by spring 110 acting upon castors 102 (FIG. 7).
Also, the resilient tubular insulator 44 is in the fully expanded
position.
When the ceiling unit 12 is lowered, the inside corner 122 will
engage the rigid upper surface 124 of partition 32. If desired, to
prevent excessive wear, the edge 122 may be provided with a strike
plate 126 to minimize or obviate any damage that may occur to the
ceiling panel 12 through repeated engagement with the upper surface
124.
When the ceiling unit 12 is lowered to the broken line position of
FIG. 6, the partition 32, side wall panel 14 and front wall panel
16 will be downwardly displaced against the bias of spring 110
(FIG. 7) as permitted by the floating attachment of the partition
32 (see FIG. 3). Simultaneously, the weight of the ceiling unit 12
will collapse insulators 44 above and beneath the wall panels so as
to form an acoustical and hermetic seal at the ceiling and floor,
respectively.
The construction of the ceiling unit 12, as described, accommodates
some significant advantages not otherwise available in building
structures. For example, light fixtures 128 (FIG. 1) can be
permanently installed in the ceiling unit 12. In additition, an air
flow duct 130 can be permanently installed and connected to a
flexible conduit for providing heat and air-conditioning to each
individual enclosure as it is formed.
THE METHOD
The method of assembling a plurality of enclosures within a larger
space can be easily understood by reference to FIGS. 1 and 2. As
shown in FIG. 2, the wall panels 14 and 16, normally situated in
the folded position parallel to support wall 18, are arcuately
displaced about the axis of hinge 38 (FIG. 3) in the direction of
arrow 53. When the side wall panel 14 is essentially normal to the
support wall 18, the front wall panel 16 is arcuately displaced
about the axis of hinge 96 (FIG. 4) along the path depicted by
arrow 56 to the full unfolded position parallel to the support wall
18. Displacement of the wall panels 14 and 16 is easy and
unencumbered as the wall panels 14 and 16 are supported in an
elevated position upon castors 102 (FIG. 7).
In the unfolded position, the front wall panel 16 is secured to an
adjacent side wall panel 14 or, where desired, a permanent fixed
wall. Securement is accomplished through any desirable attaching
means such as that illustrated and described in connection with
FIG. 4. As pointed out, each of the vertical joints of the wall
panels forms an acoustical and hermetic seal as a result of partial
collapse of tubular insulators 44 during the unfolding process.
When completely unfolded, the ceiling unit 12 is lowered arcuately
about the axis of hinge 120 (FIG. 6) so that the weight of the
ceiling unit is brought to rest upon the unfolded wall panels 14
and 16. The weight of the ceiling unit causes both wall panels 14
and 16 and partition 32 to be downwardly displaced against the bias
of spring 110 (FIG. 7) into floor engagement. Simultaneously,
acoustic and hermetic seals are formed on both the top and bottom
surfaces of the wall panels. As described in connection with FIG.
3, vertical displacement of the partition 32 is made possible
exclusively in the vertical direction as a result of the slidable
attachment of the partition 32 within the bracket 26. Where
desired, each front wall member 16 may be provided with a doorway
132 thereby making each enclosure independently accessible.
Moreover, each enclosure is provided with independent lighting,
air-conditioning and heating.
Each enclosure may thereafter be collapsed or folded by reversing
the described method, the wall panels being folded neatly against
the support wall 18 and each ceiling unit being elevated to an
aesthetically pleasing position and providing light and
air-conditioning to the larger space.
In accordance with the structure and method of this invention, it
is apparent that a large space can be quickly and easily converted
into a plurality of smaller enclosures each of which is
acoustically and hermetically sealed from the next and each of
which is provided with its own lighting, heating and
air-conditioning facility.
The invention may be embodied in other specific forms without
departing from its spirit or essential characteristics. The
described embodiment is to be considered in all respects only as
illustrative and not restrictive and the scope of the invention is,
therefore, indicated by the appended claims rather than by the
foregoing description. All changes which come within the meaning
and range of equivalency of the claims are to be embraced within
their scope.
* * * * *