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Патент USA US2117748

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May 17, 1938.
T. D. STEWART
‘
2,117,748
SPRING CUSHION STRUCTURE
,
Filed Sept. 1a, 1956
2 Sheets-Sheet 1
I NVENTOR.
735017052 [2 575M075?’
ATTORNEYS
May 17, 1938.
I
T, D STEWART
2,117,748
SPRING CUSHION STRUCTURE
Filed Sept. 18, 1956
2 Sheets-Sheet 2
M
IN VENTOR.
THEUDUEE 17. 521E W?HT
Patented May 17, 1938
2,117,748
UNiTED STATES PATENT OFFIQE
2,117,748
SPRING CUSHION STRUCTURE
Theodore D. Stewart, Detroit, Mich., assignor to
L. A. Young Spring and Wire Corporation, De
troit, Mich.
Application September 18, 1936, Serial No. 101,379
15 Claims.
The main objects of this invention are:
First, to provide a spring cushion structure in
which the spring assembly may be assembled
as a unit and the upholstery quickly and rapidly
$.11
applied thereto.
Second, to provide a structure of the class or
type described which renders it possible to up
holster a cushion Without the employment of
skilled labor.
10
Third, to provide a structure of this type which
is very economical in its parts and at the same
time strong and rigid.
Objects relating to details and economies of
the invention will appear from the description to
follow. The invention is de?ned and pointed out
in the claims.
A structure which is a preferred embodiment
of the invention is illustrated in the accompany
ing drawings, in which:
20
Fig. 1 is a fragmentary View partially in ver
tical section on a line corresponding to line l~—-l
of Fig. 2.
2 is a fragmentary view in horizontal sec—
ticn on line 2-2 of Fig. 1.
25
Fig. 3 is a fragmentary bottom perspective of
one of the border frame elements of my spring
structure.
Fig. 4 is a fragmentary perspective view of a
modi?ed form or embodiment of my invention.
Fig. 5 is a fragmentary view illustrating the
30
manner in which upholstery is secured in the
modi?ed form or embodiment of my invention.
Fig. 6 is a fragmentary top plan view illustrat
ing the relation of the spring supports and the
35 springs to the border frame, certain of the springs
being indicated by dotted lines only and other
springs being conventionally shown.
Fig. 7 is a fragmentary perspective view further ‘
illustrating the frame and spring supporting fea
40 tures of the invention.
In the embodiment of my invention illustrated,
numeral l designates generally the border frame
which comprises opposed side members 2, 2, and
end members 3, 3, joined together to form a con
45 tinuous frame structure. These border frame
members are formed of sheet metal—that is,
metal of uniform thickness and are of elongated
s-shape in cross section, the outer edges of the
strips from which the members are formed being
50 turned upwardly and inwardly to provide an in
wardly facing spring securing channel 4 and
their inner edges being turned downwardly and
outwardly to provide outwardly facing upholstery
securing channels 5, the web portions 6 between
55 the channels being of substantially greater width
(Cl. 155-480)
than the combined width of the two channel
?anges l‘ and ‘8 providing a substantial ledge
like surface to which the cross members 9 may
be secured as by spot ‘welding indicated at Hi,
there being an exposed ?at portion of the web
lying between the channels to permit the effec
tive welding operations.
The spring supporting grid consisting of the
longitudinal wires H and the transverse wires l2
are arranged upon the cross bars with the ends 10
of the grid wires lapping upon and welded to the
border frame webs at I3. These ledges or webs
also provide an e?ective surface to which the
plate-like corner irons M are secured by welds
indicated at E5.
The‘ cross sectional shape of the border frame
and the cross members and grid members welded
thereto form an exceedingly rigid frame even
when formed of quite light gauge stock.
The body springs it are arranged upon and
secured to the supports as by means of clips I‘!
and their outer springs are lapped upon the
border frames and secured thereto by clamping
the inwardly facing ?ange l of the spring se
curing channel thereon as indicated at l8.
Upholstery securing tongues or prongs H! are
struck downwardly from the webs 6 with their
ends lying in opposed relation to the upholstery
securing channel 5 above and preferably quite
close to the ?ange 8 of the upholstery securing 30
channel.
The upholstery 20 is provided with a skirt
portion 2| which is wrapped around the border
frame as clearly shown in Figs. 1 and 5 and pro
vided with a beaded edge 22 which is forced into 35
the channel 5 with the bead lying at the rear
of the tongues l9. The tongues and the uphol
stery and beading material will yield suf?ciently
so that the upholstery may be pushed into the
channel but it is effectively retained therein by 40
the tongues coacting with the channel.
The ?ange 8 of the upholstery securing channel
may be clamped upon the channel as an additional
securing means but that is not essential to effec
tively secure the upholstery when the tongues are
employed.
In the embodiment of my invention shown in
Figs. 4 and 5, the tongues are omitted and the
?ange 8 clamped upon the bead or upholstery
as shown at 23, Fig. 5. While this provides an
effective securing means for the upholstery it
necessitates the use of an air hammer or pliers
or the like and is not as expeditious as when the
tongues are present. In both embodiments, how
ever, the structure is very rigid and avoids the
2
2,117,748
necessity of tacking strips and upholstery secur
ing means other than the rim itself.
I have illustrated and described my improve
ments in an embodiment which I have found very
practical. I have not attempted to illustrate or
ity of coiled body springs on said support, the
bottom coils of certain of said body springs be
ing clamped within the inwardly facing spring
supporting channel, and an upholstery covering
for said springs having‘ a depending skirt pro
describe other embodiments or adaptations as it
vided with a beaded edge disposed within said
is believed that this disclosure will enable those
skilled in the art to embody or adapt my improve
upholstery securing channel with said tongues
ments as may be desired.
1
in retaining engagement therewith.
4. In a spring cushion structure, the combina
1. In a spring cushion structure, the combi
nation of a border frame comprising ?xedly con
nected side and end members, said frame mem
tion of a border frame comprising ?xedly con 10
nected side and end members, said frame mem~
bers being of elongated S-section disposed hori
zontally and providing relatively wide ?at web
portions, an upper inwardly facing spring sup
porting channel at the outer edge of the web and 15
bers being of elongated S-section disposed hori
zontally and providing relatively wide ?at web
portions, an upper inwardly facing spring sup
porting channel at the outer edge of the web and
a lower outwardly facing upholstery securing
channel at the inner edge of the web, the webs
a. lower outwardly facing upholstery securing
channel at the inner edge of the web, both said
channels being substantially shallower than the
web is wide, cross bars extending between said
side members arranged upon and welded to the 20
webs thereof,~a spring supporting wire grid dis
having
posed upon said cross members with the ends of
the grid wires lapped upon and secured to said
Having thus described my invention, what I
claim as new and desire to secure by Letters Pat
ent, is:
downwardly
and
inwardly
directed
tongues struck therefrom and disposed with their
tips in opposed relation to the ?ange of the up
holstery securing channel, cross bars extending
between said side members arranged upon and
welded to the webs thereof, a spring supporting
wire grid disposed’ upon said cross member with
the ends of the grid wires lapped upon and weld
ed to said webs, a plurality of coiled body springs
on said grid, the bottom coils of certain of said
webs, a plurality of coiled body springs, the bot
tom coils of certain of said body springs being 25
clamped within the inwardly facing spring sup
porting channel, and an upholstery covering for
said springs having a depending skirt disposed
with its edge secured within said upholstery se
curing channel.
» 5. In a spring cushion structure, the combina
body springs being clamped within the inwardly ‘tion of a border frame comprising ?xedly con
facing spring supporting channel, and an up
holstery covering for said springs having a de
pending skirt provided with a beaded edge dis
nected side and end members, said frame mem
posed within said upholstery securing channel
with said tongues in retaining engagement there
with.
2. In a spring cushion structure, the combi
40 nation of a border frame comprising ?xedly
bers being of elongated S-section disposed hori
zontally and providing relatively wide ?at web 35
portions, an upper inwardly facing spring sup
porting channel at the outer edge of the web
and a lower outwardly facing upholstery securing
channel at the inner edge of the web, both said
channels being substantially shallower than the
connected side and end members, said frame ' web- is wide, a spring supporting wire grid dis
posed with the ends of the grid wires lapped upon
and secured to said webs, a plurality of coiled
body springs, the bottom coils of certain of said
members being of elongated S-section disposed
horizontally and providing relatively wide flat
web portions, an upper inwardly facing spring
supporting channel at the outer edge of the web
and a lower outwardly facing upholstery se
curing channel at the inner edge of the web, the
webs having downwardly and inwardly directed
tongues struck therefrom and disposed with their
50 tips in opposed relation to the flange of the up
holstery securing channel, a spring supporting
wire grid disposed with the ends of the grid wires
lapped upon and welded to said webs, a plurality
of coiled ‘body springs on said, grid, the bottom
coils of certain of said body springs being clamped
within the inwardly facing spring supporting
channel, and an upholstery covering for said
springs having a depending skirt provided with
a beaded edge disposed within said upholstery
60 securing channel with said tongues in retaining
engagement therewith.
.
3. In a spring cushion structure, the combina
tion of a border frame comprising ?xedly Con
nected side and end members, said frame mem
" bers being of elongated S-section disposed hori
zontally and providing relatively wide flat web
portions, an upper inwardly facing spring sup
porting channel at the outer edgeof the web
and a lower outwardly facing upholstery securing
70 channel at the inner edge of the web, the webs
having downwardly and inwardly directed
tongues struck therefrom and disposed with their
tips in opposed relation to the ?ange of the up—
holstery securing channel, a spring support
75 lapped upon and welded to said webs, a plural
body springs being clamped within the inwardly 45
facing spring supporting channel, and an up
holstery covering for said springs having a de
pending skirt disposed with its edge secured with
in said upholstery securing channel.
6. In a spring cushion structure, the combina
tion of a border frame comprising ?xedly con
nected side and end members, said frame mem
bers being of elongated S-section disposed hori
zontally and providing relatively wide ?at web
portions, an upper inwardly facing spring sup
porting channel at the outer edge of the web and
a lower outwardly facing upholstery securing
channel at the inner edge of the web, said frame
members having spring tongues struck therefrom
adjacent said upholstery securing channel and
restricting the opening therein,’ a plurality of
coiled body springs, the bottom coils of certain
of said body springs being clamp-ed within the
inwardly facing spring supporting channel, and
an upholstery covering for said springs having a 65
depending skirt disposed with its edge in said
upholstery securing channel and held therein by
said spring tongues.
'7. A spring cushion structure comprising a
border frame member of elongated S~section dis
posed horizontally and providing a relatively wide
?at web portion, an upper inwardly facing spring
supporting channel at the outer edge of the web
and a lower outwardly facing upholstery securing
channel at the inner edge of the web, the web
3
2,117,748
having
downwardly
and
inwardly
directed
cured at their ends-to one another, said strips
having an integral upper spring coil receiving
channel facing inwardly of the frame, an inte—
tongues struck therefrom and disposed with their
tips in opposed relation to the ?ange of the up
holstery securing channel, a spring support dis
posed upon and welded to said web, coiled body
springs arranged on said support, the bottom
coils of certain of said body springs being clamped
gral lower upholstery securing channel facing
within the inwardly facing spring supporting
tongues punched downwardly therefrom, said
channel, and an upholstery covering for said
10 springs having a depending skirt provided with
a beaded edge disposed within said upholstery
securing channel with said tongues in retaining
engagement therewith.
8. A spring cushion structure comprising a
15 border frame member of elongated S-section dis
posed horizontally and providing a relatively wide
flat web portion, an upper inwardly facing spring
supporting channel at the outer edge of the web
and a lower outwardly facing upholstery securing
20 channel at the inner edge of the web, said frame
member having spring tongues struck therefrom
adjacent said upholstery securing channel and
restricting the opening therein, a spring support
disposed upon and welded to said web, coiled body
springs arranged on said support, the bottom coils
of certain of said body springs being clamped
within the inwardly facing spring supporting
channel, and an upholstery covering for said
springs having a depending skirt with its edge
30 secured within said upholstery securing channel.
9. A border frame for spring structures com
prising a sheet metal strip of substantial width
having one longitudinal edge turned upwardly
and inwardly to provide a spring securing chan
nel and the other longitudinal edge turned down
wardly and outwardly to provide an outwardly
facing upholstery securing channel,.the web of
said strip being substantially wider than the
combined width of the channel ?anges and hav
40 ing tongues struck downwardly therefrom with
their tips in opposed relation to the ?ange of the
upholstery securing channel and adapted to co—
act therewith to retain the edge of an upholstery
skirt engaged within the ‘channel.
10. A border frame for spring structures com
prising a sheet metal strip of substantial width
having one longitudinal edge turned upwardly
and inwardly to provide a spring securing chan
nel and the other longitudinal edge turned down
wardly and outwardly to provide an outwardly
facing upholstery securing channel, the web of
said strip having tongues struck downwardly
therefrom with their tips in opposed relation to
the upholstery securing channel and adapted to
coact therewith to retain the edge of an up
holstery skirt engaged within the channel.
11. A sheet metal border frame for a spring
outwardly of the frame, and an elongated ledge
integrally joined to said channels and lying in
the plane of the frame, said ledge having resilient
tongues restricting the opening in said last named
channel, yielding to permit insertion of the up 10
holstery in the channel, and securing the up
holstery therein after insertion.
12. A border frame for a spring cushion struc
ture comprising a strip of S-cross section having
an integral upper spring coil receiving channel
facing inwardly of the frame, an integral lower
upholstery securing channel facing outwardly of
the frame, and an elongated ledge integrally
joined to said channels, said ledge having spaced
prongs punched downwardly therefrom coopera
tive with said last named channel to secure up
holstery therein, said prongs normally decreas
ing the opening in the channel at the points
where they are located.
13. A sheet metal border frame for cushion ‘
structures comprising strips secured at their
ends to one another to form a rectangular out
line, said strips being provided with a spring coil
receiving channel, a second upholstery receiving
channel, and an elongated ledge connected to 30
said channels and lying in the plane of the frame,
said ledge having projections thereon cooperative
with said last named channel by decreasing the
effective opening thereof to secure upholstery
therein, said upholstery receiving channel being
deformable to clamp upholstery therein.
14. A sheet metal border frame for cushion
structures comprising strips secured at their ends
to one another to form a rectangular outline,
said strips being provided with a spring coil re
ceiving channel, a 'second upholstery receiving
channel, and an elongated ledge connected to said
channels and lying in the plane of the frame, said
upholstery receiving channel being deformable
to clamp upholstery therein, said channels lying
above and below the plane of the ledge and being
substantially shallower than the ledge is wide.
15. A sheet metal border frame for cushion
structures comprising strips secured at their ends
to one another to form a rectangular outline, said
strips being provided with a spring coil receiving
channel, a second upholstery receiving channel,
and an elongated ledge connected to said chan
nels and lying in the plane of the frame, said
channels lying above and below the plane of the
ledge and being substantially shallower than the
ledge is wide.
cushion structure having upholstery draped
thereover comprising strips of S-cross section se—
THEODORE D. STEWART.
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