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Патент USA US2105115

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:Jam. 11, 1938.
w. w. GLEASON '
UPHOLSTERY SPRING ASSEMBLY
Filed July 20, 1-936
. 2,105,115
Patented Jan. 11, 1938
25105415
~ 'UNITEJD‘LSTATES
PATENT OFFICE‘
27,105,115 l
UPHOLSTERY SPRING ASSEMBLY
William W. Gleason, Chicago,‘ Ill., assignor to
Nachman Spring-Filled Corporation, Chicago,
1,111., a corporation of Illinois
‘
, Application July 20, 1936, Serial No. 91,462,
r 1 Claim.
One object of the present invention is to pro
vide a spring assembly .of theall-metal type used
for upholstery purposes andparticularly for the
manufacture of seat cushions of all typesand for'
"5 mattresses, wherein the corner portions of the
structure are re-inforced for the purposes of
rendering the whole unit less liable to buckle
under the lateral pressures exerted upon the
same in forcing them into place in the cover struc
(c1. 5-260)
portionsto the terminal coils of said cornersprings
satisfactorily-to prevent relative movement of the
latter and said border wires which causes noise.
The high degree of, resiliency of said wires also
causes them to break at the corners. of the struc- 5
ture and project through the cover fabrics. Such
breakages have caused injuries to- occupants of
seat cushions and, in many instances, the break
ages have occurred in the handling and shipment
10
10 tures therefor after said structures ,have been of the spring assemblies.
surrounded by suitable padding material of a
1 It is also well known that all metal spring
fullness which necessitates crowding of the same assemblies have a tendency to buckle and become
and said padding into said cover structures,
distorted in forcing them, when covered with
Another essential object of the invention is to padding, into cushion and mattress covers and
15 provide a reinforced structure of the type speci?ed .that in the use and handling of mattresses and 15
which will resist distortionand breakage iniuse, cushions equipped with such spring assemblies,
such distortion and breakage in use being common the corner portions su?er most'from breakage
to structures of this type as ordinarily manu
and distortion.
The highly resilient border wires 2 will not
factured.
, _.
20 Another object of ‘the invention is to provide bend like softer wire under the in?uende of 20
a, reinforced structure of the type speci?ed which stresses to which they are subjected in the tying
can be rolled up or folded and at, the same time operations and because of their smooth surfaces
andv tendency to straighten themselves, they slip
Another importantobject of the invention is along the ties under stresses of use, handling and
25 to provide a spring assembly of the type speci?ed, shipment, and thus in time, if ‘not shortly after 25
wherein the chance of breakage of highly resilient completion of the spring, assembly, present loose
border;wires atthe corners of the assembly and .ends that soon project through the cover fabrics.
consequent danger of injury to occupants and Such wires are advantageous, however, because of
their high degree of resiliency whereby, when
users of seat cushions and mattresses, is elimi
secured to the springs I, they exert a constant 30
‘ compressed to occupy minimum ‘space in shipping.
Suitable embodiments of the invention are 11
lustrated in the accompanying drawing, wherein
Fig. 1 is a fragmentary plan view of a spring
assembly constructed in accordance with the
35 invention.
‘
Figs. 2 and 3 are fragmentary detail sectional
views of the same taken on the lines 72-2 and
3—3, respectively of Fig. 1.
Fig. 4 is a fragmentary perspective view show
4,, ing a corner portion of another form of embodi
ment of the invention.
'
The upholstery springs I shown are coupled
with each other in any suitable manner as,’ for
example in accordance with the teachings of the
45 Re-Issue Patent No. 19,347 to Oliver Hetherington,
as illustrated inthe accompanying drawing.v
Preferably, the outermost portions of the mar
ginal springs are secured by means of suitable ties
of the said Hetherington patent type, or any other
50 suitable type, to border wires 2 composed of sever
al strands of piano wire or other wire of a
highly resilient nature.
‘
In practice it has been found difficult to bow
said wires around the outermost portions of the
55 corner springs l and secure said bowed or arcuate
tension on the whole structure which tends to
expand the same laterally and longitudinally to
increase the aforesaid resistance to buckling and
aid in self-restoration of the structure after such
buckling has occurred. This effect is produced 35
particularly along the rows of marginal springs
and is very desirable.
'
Hence, a suitable means for retaining the ad
vantages incident to the bowing of the border
wires 2 about the corners of the spring assembly 40
while eliminating the dangers incident to the
breakages or escapes from the ties of these corner
portions of said‘wires has been sought for some
time.
The present invention, as embodied in the struc- 45
tures illustrated herein, remedies the foregoing
di?lculties and disadvantages by omitting the
corner portions of the wires 2 which, as shown in
Fig. 1, terminate at points spaced from the corner
springs 3 and just beyond the outermost portions 50
of the next adjacent springs, said wires being se
cured by the ties shown or others commonly used
in the art to all springs except the corner springs
3 and the next adjacent marginal springs.
Strips 4 of sheet metal of light gauge and 55
2
2,105,115
which are folded to U-shape in cross section are
bent between their ends to the curvature coin
ciding with that of the terminal coils of the
corner springs and receive the outermost portions
of the latter while the arms of said strips re
ceive the terminal end portions of the border
wires 2 and the adjacent portions of the springs
l lying next to the said springs 3 and to which
the wires 2 are practically tangential. ‘ The
10 ?anges of the said channeled strip 4 are con
tracted to ?rmly engage the corner springs '3
and the adjacent springs l, the mouth portions
of the strips 4 being closed or practically closed
at the portions 5 and 8, respectively, as shown
in Figs. 2 and 3, to clamp the terminal end por
tions of the wires 2 against movement relatively
to the springs l and said strips 4. In effecting
such closure by means such’ as a punch-press
equipped with the requisite dies, the several wires
embraced by said strips 4 may be slightly ?at
tened but such ?attening is not necessary.
The engagement of the strips 4 with the sev
eral wires 2 and springs l and 3 is such as to
obviate movement of said strip and said wires 2
relatively to each other longitudinally of said
wires.
Said strips 4 are also anchored to the
springs l and 3 and cooperate with the wires to
prevent the marginal springs l and said springs
3 from being crowded toward each other in direc
530 tions parallel with said wires 2 and thus render
the marginal portion of the spring assembly ex
tremely resistant to the lateral pressures with
out reducing the resiliency of the whole struc
ture responsively toloads‘ on the springs.
35
Said members ‘I are contracted similarly to the‘
strips 4 to anchor the same to the springs l and
3 and to engage border wire members 8 which,
in this instance, are made up of elongated ter
minal portions of the vertical marginal zig-zag
wire springs 9, said terminal end portions 8 of
each spring 9 being looped about a next suc
ceeding portion 8 of the adjacent spring 9 by
means of loops ID.
The said members ‘I will ?ex to enable spring
assemblies equipped therewith to be rolled up
into small diameter rolls for cylindrical baling
purposes and will con?ne several ends of wire
portions 8 against projecting appreciably out
wardly from points of breakage so that such pro
jecting ends may not penetrate the cover fabrics.
The structure of Figs. 1 to 3 inclusive con
stitutes the preferred form of embodiment of the
invention, it being obvious that the springs 9
may be incorporated into said structure if de
sired.
I claim as my invention:
A spring assembly for upholstery comprising a
group of interconnected springs disposed in rela
tive positions to form a rectangular structure, 25
channeled L-shaped sheet metal corner members,
each secured to and embracing the outermost
portion of the terminal coil of a corner spring
and the outermost portions of the terminal coils
of the two marginal springs next adjacent the 30
respective corner springs, resilient wires pro
jecting at their ends into the arms of said corner
members and in tangential relation to the ter
minal coils of the last-named marginal springs
The characteristics imparted to the marginal
portions of the structure necessarily affects all
of the remaining springs l to render the whole
and secured to the latter by said corner members, "
said border wires being secured to the outermost
portions of the terminal coils of the remaining
structure far more resistant to buckling than
marginal springs and rendering yielding the edge
portions of the assembly disposed between the
portions embraced by said corner members by
flexing of said last-named portions of said bor
der wires and said corner members being sub
stantially in?exible and causing load disposed
it would be otherwise.
‘
Substantially the same result as is obtained
by the'structure of Figs. 1, 2 and 3 may be ob
tained by the structure of Fig. 4 wherein the
corner reinforcing member 1 composed’ of re
silient zig-zag wire strips folded along its middle
portion to provide skeleton channel structures
may be ?exed to substantially L-shaped contour
shown, instead of being bent to such contour.
upon any one or several springs embraced there
by to be transmitted to all of the said springs i :
to which said members are secured.
WILLIAM W. GLEASON.
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