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Патент USA US3064290

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Nov. 20, 1962
F, A, NACHMAN, ,{R
3,064,280
SPRING ASSEMBLY STRUCTURE
Filed Nov. 17, 1960
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3,964,280
Patented Nov. 20, 1962
2
1
?gures. Instead, the Marshall type units can be preformed
3,064,280
into rows wherein a plurality of coil springs are arranged
SPRING ASSEMBLY STRUCTURE
in the desired spaced relationship within lengths of fabric
Fred A. Nachman, In, Chicago, Ill., assignor to Nach
which are then stitched together between the coil springs
man Corporation, Chicago, 111., a corporation of
to provide pockets within which the coil springs are re
5
l'llinois
tained in a compressed state, and after which the rows
Filed Nov. 17, 196i), Ser. No. 69,958
can be aligned for cross connection between terminal
19 Qlaims. (Cl. 5-353)
coils of adjacent coil springs to interconnect the rows into
a spring assembly. It will be understood that when
This invention relates to spring assemblies and it re
formed of individual cells or rows of cells, the cells can
be staggered between rows, such for example as when a
lates more particularly to a bed spring or a spring for an
inner spring mattress which is characterized by a greater
higher spring count is desired for greater stiffness support
resiliency and stiffness in the edge construction coupled
with greater resiliency and stiffness in the body portion
or resiliency.
In accordance with the concepts of this invention, a
without increase in cost of the spring assembly from the
standpoint of the additional usage of stiffening or re-en 15 plurality of coil springs 26 free of the fabric enclosures
are arranged about the perimeter of the assembled Mar
forcing members without loss of the ability of the spring
shall unit for location between the Marshall section and
assembly to retain a relatively uniformly ?at surface.
the border wires 16 and 18. The outer coil springs 20
It is an object of this invention to produce a spring as
are of a height corresponding to the height of the Mar-_
sembly characterized by improved resiliency and stiffness
shall units and they may be of the same cross section
both in the edge construction and in the body portion,
for alignment with the rows of the coil springs forming
and it is a related object to achieve the improved resiliency
the body portion of the spring assembly. It is preferred,
however, that the outermost coil springs 24} be of larger
dimension and formed of spring wire of heavier gauge
practiced.
25 for greater stiffness and resiliency. When formed of
larger dimension, the coil springs cannot be aligned with
Another object is to produce a new and improved bed
each row but instead are preferably aligned with alter
spring assembly formed of relatively low cost and readily
and sti?ness merely by the construction and arrangement
of the spring elements as distinguished from the additions
of stiffening and re~enforcing members, as heretofore
nate row or other suitable spacing, as illustrated in PEG. 1.
available materials which are easily assembled into a
strong and sturdy spring assembly having good feel and
To interconnect the Marshall units with the border
resiliency throughout the entire area thereof including the 30 wires in the spring assembly, the inner portion of the top
edge portions as Well as the body portion and which re
and bottom coils of the coil springs 20 are connected,
as by staples, stitching or the like to the corresponding
tains its resiliency and feel over great periods of actual use
terminal coils of the adjacent outermost spring of the
by comparison with present spring constructions.
These and other objects and advantages of this inven
Marshall section, as illustrated in FIGS. 1 and 3.
tion will hereinafter appear, and for purposes of illustra
tion but not of limitation, an embodiment of the inven
35
With the outer coil springs 20 free of the fabric en
closure, it becomes possible to embody an improved edge
tion is shown in the accompanying drawings in which:
construction by arrangement of the border frame mem
bers 16 and 18 to overlap the terminal coils of the outer
most coil spring by an amount to bring the border frame
bodying the features of this invention;
FIG. 2 is a sectional view taken substantially along the 40 wires into substantially vertical alignment with the cen
tral body portion of the coil springs, leaving enough of
line 2—2 of FIG. 1;
the terminal coil beyond the border frame members for
FIG. 3 is a sectional view taken substantially along the
wrapping about the border frame members to effect a
line 3—-3 of FIG. 1; and
FIG. 4 is a perspective elevational view of a Marshall
?rm interconnection therebetween, as indicated by the
type spring unit employed in the spring assembly embody 45 numeral 28 in FIG. 1 of the drawings. By virtue of this
practice, an assembly having markedly improved char
ing the features of this invention.
acteristics from the standpoint of stength, resiliency and
The concepts of this invention are embodied in a coil
FIG. 1 is a top plan view of a bed spring assembly em
spring assembly formed of a plurality of coil springs 10,
stiffness in the edge portions is achieved. By the arrange
most of which are arranged in rows 12 and 14 extending
ment of the border frame members to extend across the
lengthwise and crosswise between vertically spaced-apart, 50 terminal coils of the coil spring ‘as a chord, the border
frame member is positioned in operative alignment with
upper and lower border wire members 16 and 18 respec
tively. The border wires are aligned with the upper and
the principal lines of force generated by the coil springs,
especially when the border frame members overlie at
lower terminal coils of the outermost coil springs.
All of the coil springs with the exception of the outer
least a portion of the coil of smallest dimension within
most coil spring 20 are con?ned within cells 22 formed 55 the outermost coil springs. This provides for greater re
of textile or the like fabric 24 into compartments having
sistance to deformation in the edge construction thereby
a cross section corresponding to or slightly greater than
to achieve an effect sought to be secured by the objection
the confined coil springs and a height less than the height
able usage of auxiliary spring elements such as spring
arms vertically arranged between the border frame mem
of the con?ned coil springs when in their relaxed state
so that each of the coil springs will be con?ned in a ten 60 bers to stiffen the edge portion of the assembly.
sioned relationship within each of the cells. The de
If the border frame members were tied to the outer
scribed construction wherein the coil springs lll are con
portions of the terminal coils of the outermost coil springs
at their outer edge portions, the edge construction of the
?ned within cells 22 of smaller dimension to form the
body portion of the spring assembly is generally referred
spring assembly would be soft and excessively depressed
to in the trade as Marshall type units, more fully de 65 under the slightest loads. ‘When interconnected in ac
scribed in the United States Patent No. 2,790,979.
cordance with the concepts of this invention, the coil
The Marshall units may be separately formed into in
springs are tied in more completely with the border frame
dividual cells which are aligned in the lengthwise and
members in a manner which resists displacement and in
crosswise rows and joined one to the other in the assem
a manner which is capable of maintaining the desired
bled relation as by staples 26, stitching or the like fasten 70 assembled relationship notwithstanding the direction of
ing means to interconnect the top and bottom terminal
applied force. It will be apparent further that the loca
coils of the adjacent coil springs, as illustrated in the
tion of the border frame members in a more effective
3,064,280
1
3.
relationship with respect to the coil springs of the assem
bly will enhance the reaction of the spring assembly to
the application of load from various directions for greater
resiliency and better .feel.
4
.
.
.
2. A spring assembly comprising a plurality of coil
springs con?ned in a compressed‘ state within resilient
enclosures, means interconnecting the coil spring one with
another in crosswise and lengthwise aligned rows to pro
The combined operation of the inner Marshall portion 5 vide a unitary assembly, other individual coil springs
free of an enclosure and in an uncompressed state posi
of the spring assembly and the described edge construc
tioned in a crosswise'and lengthwise row about the pe
tion results in a multiple coil spring assembly which em
riphery of the unitary assembly, means interconnecting
bodies the bene?cial aspects of the Marshall type con
the adjacent portions of the terminal coils of the adja
struction while being free of the weaknesses characteristic
thereof and which simultaneously provides the bene?cial 10 cent coil springs outermost in the unitary assembly and
the other coil springs to interconnect the other coil springs
‘aspects of an’ improved edge construction which is not
with the unitary assembly to form a part thereof, upper
restricted to the speci?c saddle type coils heretofore em
and lower border frame members overlying and under
ployed.
lying respectively the terminal coil of the other coil
It will be understood that the invention is not limited
springs to extend across a portion inwardly from the
to coil springs of a particular shape or gauge and that
outer edges of the terminal coils of the other coil springs
use can be made of border frame members of round or
by an amount to provide an outwardly extending por
?attened lengths of spring wire, plastics, wood and the
tion which is wrapped about the border frame member
like and that various other types of fastening means may
be employed for joining the Marshall type units one to
for interconnection therebetween.
3. A spring assembly as claimed in claim 2 in which'
the other and to the inner portions of the outermost coil 20
the other coil springs are dimensioned to have a relaxed
springs.
height corresponding to the height of the compressed coil
It will be apparent that I have provided an improved
spring assembly having improvements in edge construc
tion and in the construction of the body portion which
springs in the unitary assembly.
4. A spring assembly as claimed in claim 2 in which
become so interrelated as bene?cially to affect one another 25 the other coil springs are formed of spring wire having
without destroying any of the desirable characteristics of
a heavier gauge than the coil springs in the unitary
the separate complements.
assembly.
Itwill be further understood that various changes may
be made in the terms of construction, arrangement and
5. A spring assembly as claimed in claim 2 in which
the other coil springs are aligned with alternate rows
~
, operation without departing from the spirit and the scope 30 of the compressed coil springs in the unitary assembly.
of the invention, especially as de?ned in the following
6. A spring assembly as claimed in claim 2 in which
the border frame members are spaced inwardly from the
I claim:
outer edge of the terminal coils from the other coil
1. A multiple coil spring assembly comprising a plu
rality of coil springs arranged in rows to form an internal 35 spring by an amount less than the diameter of the termi~
nal coils.
spring portion and an external spring portion bordering
7. A spring assembly as claimed in claim 2 in which
the perimeter thereof and means interconnecting said
the other coil springs are of saddle shape and in which
spring portions, said internal spring portion comprising
the border frame ‘members extend as a chord across, the
a plurality of coil springs, a cell for each coil spring
formed. of textile material and dimensioned to have a 40 terminal coils of the coil springs in substantially vertical
alignment with the outer edge of the coil of smallest
diameter corresponding, generally to the diameter of the
coil springs and a length less than the normal length of
diameter in the other coil springs.
the coil springs, said coil’ springs being con?ned within
8. A spring assembly as claimed in claim 2 in which
said cells in a compressed state to form prefabricated
the means joining the coil springs one to another com- '
units which are separate and apart from each other, and
prise clips.
,
.
means interconnecting said spring-containing cells aligned
9. A spring assembly as claimed in claim 2 in which
claims:
.
in rows to effect an assembled relation, and said external
spring portion comprising a plurality of coil springs free
of an enclosure and in an uncompressed state positioned
in crosswise and lengthwise rows about-the periphery of
the assembled enclosed springs, a top border frame mem
ber, and a corresponding bottom border frame member
arranged about the coil springs adjacent the top and bot
the compressed coil springs are separately housed within
_ the separate enclosures for joining one with another in
the desired arrangement.
.
10. A spring assembly as claimed in claim 2 in which
the compressed coil-springs and the enclosures comprise
elongate strips of fabric material in, which the coil springs
tom terminal coils and positioned to extend as chord
members across the terminal coils to subdivide said coils
are arranged in spaced-apart relation and in which the
fabric is stitched between the coil springs to de?ne sepa
into inwardly extending portions and outwardly extend
rate enclosures.’
ing portions, the latter of which are wrapped about the
border frame to effect an interconnection therebetween
andto position the border frame members in substantial
vertical alignment with the outer edges of the intermediate
coils of least diameter in the coil springs thereby to locate
the border frame members in substantial vertical align
ment with the major axial forces capable of being de
veloped by the engaged coil springs when said springs are '
inloaded condition.
References Cite-d in the ?le of this patent
UNITED STATES PATENTS
1,741,847 '
Kasper ______________ __ Dec. 31, 1929
2,048,979
Trotta et a1 ________ _'__.._ July 28, 1936
2,261,581
2,715,435
2,885,693
Gleason ______________ __ Nov. 4, 1941
Rymland __ __________ __ Aug. 16, 1955
Wuest ______________ __ May 12, 1959
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