U.S. patent number 3,725,966 [Application Number 05/107,086] was granted by the patent office on 1973-04-10 for bed.
This patent grant is currently assigned to Simmons Company. Invention is credited to Raymond H. Blecker.
United States Patent |
3,725,966 |
Blecker |
April 10, 1973 |
BED
Abstract
A bed comprising a box spring having secured to each lower side
framing member of the spring frame a structural rail connected to
the like rail on the opposite side of the bed by a leg structure
which is pivoted to the said rails, foldable against the underside
of the box spring to provide a compact package for shipment but
ready for immediate use by unfolding to a locked, erected
position.
Inventors: |
Blecker; Raymond H. (Homewood,
IL) |
Assignee: |
Simmons Company (New York,
NY)
|
Family
ID: |
22314753 |
Appl.
No.: |
05/107,086 |
Filed: |
January 18, 1971 |
Current U.S.
Class: |
5/312; 5/110;
248/188.6; 5/202 |
Current CPC
Class: |
A47C
19/024 (20130101); A47C 19/005 (20130101); A47C
19/128 (20130101) |
Current International
Class: |
A47C
19/00 (20060101); A47C 23/00 (20060101); A47c
019/22 () |
Field of
Search: |
;5/174,178-180,201,202,310-315,110,113,114 ;248/188.6 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Mitchell; James C.
Claims
What is claimed is:
1. A bed comprising a box spring having secured to its underside at
each side thereof a structural metal rail reinforcing the side
edges of the box spring frame against vertical loads, said rails
being cross-connected beneath the box spring by a unitary folding
leg structure capable of supporting both sides of the bed, said leg
structure being pivoted to said rails on an axis transverse to said
box spring and foldable thereon from a stowed position against the
underside of the box spring to an erected position to support the
bed upon the floor, and positioning means on said leg structure and
said rails for maintaining said leg structure in the erected
position.
2. The bed of claim 1 in which the reinforcing rails are each
provided at their corresponding ends with a bracket structure for
securing a headboard to the bed.
3. The bed of claim 1 in which a second such unitary leg structure
is similarly connected between the reinforcing rails and spaced
from the first sufficiently to provide stable support for the
bed.
4. The bed of claim 1 in which the unitary leg structure comprises
a bow and the pivoted connection thereof to the spaced reinforcing
rails is made at the ends of the bow, the intermediate connecting
portion of which provides the floor-engaging means.
5. The bed of claim 1 in which a lock is provided for securing the
leg structure in the erected position against inadvertent folding
as when moving the bed longitudinally while supported thereon, said
lock comprising a spring-loaded detent on one of said leg structure
and rails and engaging the other to obstruct its movement out of
erected position.
6. The bed of claim 1 in which the reinforcing rail is of angle
iron having one flange secured in facing relation to the underside
of the box spring frame at its side edge, and with the other flange
in exterior flanking relation to said side edge, and each has an
angle bracket secured back-to-back to said first mentioned flange
with its other flange disposed vertically parallel to said other
flange of the rail, and in parallel facing relation to the said
other flange of the angle bracket on the opposite rail, said leg
structure being pivoted to said rails through the medium of said
brackets and having its side edges in contact with the facing
flanges of said brackets from the pivot axis to the edges of said
facing flanges.
7. A bed comprising a box spring having secured to its underside at
each side thereof a structural metal rail reinforcing the side
edges of the box spring frame against vertical loads, said rails
each including a flange with a vertical surface arranged in facing
relation to the like flange surface of the opposite rail, and a
pair of legs pivoted to said rails at said flange on a common axis
transverse to said bed, said legs being foldable on said axis to a
retracted position against the underside of the box spring to make
a compact unit for shipment and unfoldable thereon to an erected
position to support the box above the floor, said legs being in
bracing contact with said flanges from said axis to the edge of the
flange when in said erected position, positioning means on said
flanges and legs respectively for maintaining said legs in erected
position, and a cross connection bracing the legs against a
sideward load.
8. The bed of claim 5 wherein said lock is provided with means for
maintaining said detent in an unengaged position while said leg
structure is in a stowed position and causing said detent to engage
automatically when said leg structure is in the erected position.
Description
This invention relates to beds, and particularly to an adaptation
of the familiar box spring to enable it to serve readily as a
self-standing bed by the simple expedient of unfolding
self-contained legs which are retracted for packaging and
shipment.
In recent times, the traditional bedstead has been supplanted in
large part, in the home and in commercial establishments such as
motels and hotels, by a low metal bed frame familiarly known as the
Hollywood bed. This relatively inexpensive metal frame can be used
with or without a headboard, and was particularly attractive to
newer householders faced with the expense of acquiring furnishings
for the first time. The Hollywood frame, however, is packaged and
shipped as a separate item in knock-down condition requiring
assembly by the purchaser of its several parts and the mounting of
the box spring and mattress thereon, a service not universally
available, and when available usually representing an unrecoverable
cost to the retailer.
Some attempts have been made to convert a box spring directly to a
bed by the addition of separate legs lagged into the wooden frame,
but these have frequently resulted in damage to the legs and the
frame in delivery, and also to the frame in later use, inasmuch as
the conventional box spring was designed to be supported upon a
bedstead.
It is accordingly the object of the present invention to increase
the saleability of bedding and to further reduce the cost of
setting up housekeeping by providing a box spring which is in fact
a sturdy, serviceable, and self-contained bed when it leaves the
factory or which, in one of its forms, readily becomes a bed by the
simple attachment thereto of a headboard. It is the object to
provide such a bed which avoids the necessity of assembling
individual legs with the box spring frame, and which is not subject
to the difficulties experienced with the attempted conversion of
box springs to beds by the mere attachment of supporting legs.
In essence, the bed of the invention utilizes a box spring of
otherwise conventional construction, which at present usually
incorporates a slat base frame of lumber but which may be
supplanted in future by molded frames or panels utilizing plastic
materials, in which the box spring frame is reinforced as a beam
along its side framing members by securing thereto a metal rail
which is preferably of structural shape, for example, angle iron,
which is readily available and widely used in the framing of metal
beds. These reinforcing rails, securely attached to the side
framing members of the box spring, are cross connected by folding
leg structures which are preferably, although not necessarily, made
in the form of a bow, the ends of which are pivoted either directly
to the aforementioned reinforcing rails or to pivot brackets
secured to said rails, so as to be unfoldable from a compact
shipping or storage position tight to the underside of the box
spring to an erected, use position.
The novel bed of the invention is explained in detail in connection
with the accompanying drawings in which:
FIG. 1 is a perspective view of a bed in accordance with the
invention seen from its underside to better illustrate the
structure, and showing by dotted outline an omission that may be
made to create an alternative form;
FIG. 2 is a fragmentary end view, partly sectioned, of one side of
the bed, illustrating the assembly of the reinforcing rail with the
box spring frame, and showing also the attachment of the folding
leg structure and its snap lock;
FIG. 3 is a fragmentary sectional elevational view, looking
outwardly toward the side of the bed frame;
FIG. 4 is a fragmentary side elevational view of a modified form of
the bed frame in which the reinforcing rail is fitted to the inner
edge of the side framing member of the box spring for better
concealment, and in which the pivot bracket of the preferred,
exterior form of mounting of FIGS. 1 to 3 inclusive is omitted;
FIG. 5 is a fragmentary sectional elevational view taken along the
line 5--5 of FIG. 4;
FIG. 6 is a fragmentary sectional plan view taken along the line
6--6 of FIG. 4;
FIG. 7 illustrates yet a further modification which utilizes a
tubular leg bow in connection with an exteriorly mounted
reinforcing rail similar to the form of FIG. 1; and
FIG. 8 is a fragmentary end elevational view of the reinforcing
rail and leg mounting of FIG. 7, showing the form of spring lock
utilized with a tubular leg bow.
Referring initially to FIGS. 1, 2 and 3, which illustrate the
preferred exterior mounting of the reinforcing rails, the bed 10 of
the invention utilizes a conventional box spring 12 from which the
lower dust cover has been omitted in the drawings so as not to
obscure the assembled relationship of the side framing members 14
of the box spring with the reinforcing rails 16 and foldable legs
18 and 19 which transform the box spring into a self-standing bed.
The side framing members 14 of the wooden box spring frame are
usually of double thickness, a lower wider board 20 and upper
narrower board 22 which together form a ledge and abutment to
support and contain the cross slats 24 that provide interior
support for the usual spring construction or other cushioning
structure (not shown). The entire assembly of wooden framing
members is secured together by nails, and sometimes additionally by
glue at the overlapping surfaces.
The reinforcing rail 16 is conveniently of angle iron but may be of
other structural shape suitable to enhance the beam strength of the
side framing members 14 of the box spring to enable them to
withstand the concentrated load of the weight of a person seated at
the side of the bed, in view of the widely spaced points of support
of the bed, whether provided by two sets of folding legs, 18 and 19
or, in an alternative form, by a single set of folding legs 18 at
or near the foot end of the bed and the floor-engaging supporting
posts of a headboard 26.
The exterior placement of the reinforcing rail 16 of the form of
FIG. 1 to 3 is preferred over the more concealed, interior fitting
of the modified form of FIGS. 4 to 6 inclusive, because it
facilitates the attachment of the headboard 26 by the use of a
simple angle bracket 28 secured to the end of the reinforcing rail.
The reinforcing rail 16 is secured to the side framing members 14
of the box spring with its horizontal flange tightly engaged with
the bottom surface of the wider lower board 20 of the side frame
member of the box spring, and with its vertical flange extending
upwardly in close abutment to the side wall of the box spring
frame. The attachment of the rail is made by at least two sturdy
wood screws 30 which are long enough to find purchase in both the
upper and lower members of the side frames. The use of wood screws
is satisfactory where the lumber of the box spring frame is of good
quality, but a machine screw through a pre-drilled hole to a T-nut
in the upper slat member may be desirable if uniform good quality
of the box spring frame cannot be assured.
The attaching screws 30 pass upwardly through slotted holes 32 in
the horizontal flange of the reinforcing rails, the slots being
made to permit the rails to be shifted as far as possible toward
the foot end of the bed so as to bring the headboard attaching
brackets 28 tightly to the head end corners of the bed for
packaging and shipment. However, because clearance is desired
between the headboard 26, when used, and the box spring 12 and its
coextensive overlying mattress, the attaching screws 30 may be
loosened to shift the rails 16 headward to provide the desired
clearance for the attachment of the headboard, and then
subsequently retightened when the headboard has been attached and
the desired clearance has been found.
In the form of leg 18 shown by FIGS. 2 and 3, and by the solid line
portion of FIG. 1, the leg bow is also formed of angle iron. When
in its erected, supporting position, the leg bow is preferably not
vertical but is rather unfolded past center by approximately
10.degree. for greater stability. Accordingly, one flange of its
connecting cross-member is offset (FIGS. 1 and 2) to provide two
horizontal surfaces for the attachment either of casters or of the
furniture glides 34 illustrated.
As indicated in FIGS. 2 and 3, the folding leg bow is pivoted by
means of a shoulder rivet 36 at each end to the vertical flange of
a downwardly-extending angle bracket 38, the other flange of which
is riveted back-to-back to the horizontal flange of the reinforcing
rail 16. It will be noted that the vertical flange of the pivot
bracket 38 is of substantial depth so as to provide an extended
length of contact between the surfaces of the leg bow 18 and the
pivot bracket in order to utilize the resistance of the leg bow to
distortion in its own plane as reinforcement for the side rails of
the bed frame against twisting loads.
The unfolded or erected position of the leg bow is determined by
its abutment with stop pins 40 securely riveted in the vertical
flanges of the pivot brackets 38. It is held in that position by a
spring lock in the form of a leaf 42 which is pivoted to the leg
bow 18 on a shoulder rivet 44 and is biased by a torsion spring 46
to cause the protrusion of a tongue at the free end of the leaf
outwardly through a slot 47 in the side wall of the leg bow, and
into a registering mating notch in the lower edge of the vertical
flange of the pivot bracket. As will be apparent from inspection of
FIGS. 2 and 3, the locking tongue is retracted when the leg is in
the folded position, the entering tip 43 of the tongue bearing
against the vertical flange of the pivot bracket as the leg is
erected. When the slot in the leg and the notch in the mounting
bracket ultimately register, the torsion spring drives the tongue
of the leaf outwardly into locking engagement with the notch, from
which it may, however, be easily unseated by thumb pressure should
it be desired to refold the leg. Inasmuch as the inadvertent
folding of the leg would likely occur only when moving the bed, a
single position lock at one side of the leg bow has been found
adequate.
The bed 10 may be furnished with leg bows 18 and 19 at both ends of
the bed frame for those who do not choose to use a headboard, or
who do not wish to purchase one at the same time, or it may be
furnished without the leg bow 19 near the head end of the bed, as
is intended to be illustrated by the showing of that member in
dotted outline in FIG. 1. The leg bow 19 may be omitted from the
head end of the bed when a headboard is used, as the reinforcing
rail 16 at that end can be carried by the corner posts of the
headboard 26 to which the reinforcing rails at the sides of the box
springs are securely anchored by means of bolts or screws passing
through the bolt slots 50 in the vertical surface of the headboard
bracket, and into or through the corner posts of the headboard.
For installations where appearance is thought to be of sufficient
importance to dictate the concealment of the reinforcing rails,
there is provided a form of interior mounting illustrated in FIGS.
4 to 6 inclusive. This form is somewhat more costly for reasons
which are not apparent from FIGS. 4, 5 and 6, but will be
appreciated by the examination of FIG. 5 in connection with the
overall setting shown in FIG. 1, viz., that the interior mounting
of the reinforcing rails 52 (FIGS. 4 to 6) requires a more
elaborate form of headboard bracket to transfer the load from the
interior reinforcing rail to the point of anchorage on the corner
posts of the headboard while providing suitable resistance to the
twisting loading resulting from the lack of alignment of the
reinforcing rail and the headboard corner post, particularly when
it is desired to omit the leg bow at the head end of the bed.
However, in the interiorly mounted form, the vertical flange of the
reinforcing rail 52 is fitted to the inner edge of the lower slat
member 20 of the box spring frame where its vertical flange
provides for the convenient direct pivotal attachment of the leg
bow 54 without an intervening pivot bracket. In that instance,
however, the association of the parts makes it desirable to mount
the position lock 56 (which may be substantially identical to the
lock 42 of FIGS. 1 to 3) on the reinforcing rail, as indicated in
FIGS. 4 to 6, which in turn requires the provision of spacers in
the form of shoulder rivets 58 between the lower surface of the
bottom slot 20 of the box spring and the horizontal flange of the
reinforcing rail 52, in order to provide clearance for the position
lock assembly 56.
It will be appreciated from an inspection of FIGS. 2 and 3 that a
similar and somewhat more interiorly mounted and therefore somewhat
more concealed arrangement can also be achieved with the general
configuration of FIGS. 2 and 3 by extending the mounting bracket 38
longitudinally so as to constitute the entire rail and by omitting
what is shown in FIGS. 1 to 3 inclusive as the enforcing rail 16.
This would in turn require minor readaptation of the headboard
mounting bracket but would largely alleviate the twisting problem
earlier referred to in connection with the interior or concealed
arrangement of FIGS. 4 to 6 when the head end leg bow 19 is omitted
in favor of reliance upon the headboard 26 for support.
In the further modification of FIGS. 7 and 8, the general
relationship of reinforcing rail 60 and pivot mounting bracket 62
for the leg bow 19 is the preferred exterior arrangement also
utilized in the structure shown in FIGS. 1 to 3 inclusive, but the
leg bow 19 in this instance is formed of round tube instead of from
angle iron. In the tubular form of leg 19 and because of its smooth
rounded configuration, glides and casters are omitted but the cross
member of the bow is elevated by a reverse bend to limit floor
contact to the end portions of the bow (FIG. 1) thereby to assure
stability.
The tubular leg bow 19 is pivoted to the mounting bracket 62 on the
reinforcing rail 60 by means of a shoulder rivet 64 which passes
through pivot holes near the end of the bow with the necked down
portion of the rivet passing through a suitably sized hole in the
flange of the mounting bracket 62 and peaned over or headed up on
the opposite side. The normal or erected position of the leg bow 19
is determined, as in the earlier forms described, by means of a
stop pin 66 which may be of similar conformation, similarly mounted
in and secured to the pivot bracket 62.
However, the use of the tubular bow dictated a change in the form
of the position lock which is preferably a spring - loaded detent
plunger which includes a locking head proper 68 seated in a mating
hole in the tube wall and having a chamfered end for easy entry
into the mating notch 70 of the pivot plate 62, a reduced-diameter
shank portion 72 which extends through the tube toward a smaller
hole in the opposite wall where the threaded end of the shank is
received into the threaded hole in the stem of a knob 74 which
serves as the detent handle. A compression spring 76 surrounds the
plunger shank 72 within the tube, being engaged at one end with the
inside wall of the tube and at its opposite end with the locking
head 68 of the plunger. When the leg bow 19 is in the folded,
retracted position, the plunger is urged against the adjacent face
of the pivot bracket under the force of the plunger spring 76 and
enters the positioning notch 70 when the leg bow 19 is sufficiently
unfolded.
If it were preferred instead to employ individual legs, i.e., legs
not united with the corresponding leg at the opposite side of the
bed, whether by the illustrated bow formation or otherwise, it
would be desirable to provide a suitable position -- holding lock
for each such leg, although in that instance the stop pins against
which the legs abut in the final position might in the forms of
FIGS. 1 to 3 and FIGS. 7 and 8 may be omitted.
By means of the reinforcement described, a box spring of otherwise
conventional construction can be readily adapted to serve as a
self-standing bed frame, either with or without an associated
headboard, without the problems that have heretofore been
identified with requiring a box spring to "make do" as a bed. The
bed here shown and described is readied in one of its forms for
immediate use upon unpackaging by the mere unfolding of its
supporting legs. In the other form, which presupposes the immediate
availability of a headboard, or in the event it is desired to
attach a headboard to a bed frame that comes equipped with both
sets of legs, it is necessary only to loosen the anchoring screws
sufficiently to shift the reinforcing rails toward the head of the
bed to provide the necessary working clearance for the mounting of
the headboard to the headboard brackets integrally provided, and
then to set the desired clearance between the headboard and box
spring frame before again tightening the mounting screws.
The advantage obtained by the purchaser is one of reduced costs
over the combined costs of the box spring and separate Hollywood
bed frame, and the advantage provided over the mode of use of a box
spring as a self-standing bed by the addition of separate
individual legs is in having a structure of much greater strength
and serviceability. In both comparisons, the labor of installation
or erection required is much less than was heretofore necessary,
amounting only to the unfolding of the integral legs, and at most
to the further attachment of a headboard when one is desired.
The features of the invention believed new and patentable are set
forth in the following claims.
* * * * *