US3388904A - Spring construction - Google Patents

Spring construction Download PDF

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Publication number
US3388904A
US3388904A US602448A US60244866A US3388904A US 3388904 A US3388904 A US 3388904A US 602448 A US602448 A US 602448A US 60244866 A US60244866 A US 60244866A US 3388904 A US3388904 A US 3388904A
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United States
Prior art keywords
band
spring
rail
spring band
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US602448A
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English (en)
Inventor
Lawton H Crosby
Eugene B Feingold
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Individual
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Individual
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Filing date
Publication date
Priority to DE19661554012 priority Critical patent/DE1554012B1/de
Application filed by Individual filed Critical Individual
Priority to US602448A priority patent/US3388904A/en
Priority to GB26542/67A priority patent/GB1207650A/en
Priority to GB43179/67A priority patent/GB1210237A/en
Priority to DE19671654317 priority patent/DE1654317B1/de
Priority to US719808*A priority patent/US3525514A/en
Application granted granted Critical
Publication of US3388904A publication Critical patent/US3388904A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/02—Seat parts
    • A47C7/28—Seat parts with tensioned springs, e.g. of flat type
    • A47C7/30—Seat parts with tensioned springs, e.g. of flat type with springs meandering in a flat plane
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/12—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using tensioned springs, e.g. flat type
    • A47C23/14—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using tensioned springs, e.g. flat type forming nets; combined with nets
    • A47C23/155—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using tensioned springs, e.g. flat type forming nets; combined with nets with combinations of flat springs or link chains with wound springs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/12—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using tensioned springs, e.g. flat type
    • A47C23/16—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using tensioned springs, e.g. flat type of plane meandering type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C23/00—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases
    • A47C23/12—Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases using tensioned springs, e.g. flat type
    • A47C23/26—Frames therefor; Connecting the springs to the frame
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/02—Upholstery attaching means
    • A47C31/04—Clamps for attaching flat elastic strips or flat meandering springs to frames
    • A47C31/06—Clamps for attaching flat elastic strips or flat meandering springs to frames for attaching flat meandering springs

Definitions

  • This invention relates in general to furniture and other seating arrangements, and more particularly to a seating arrangement employing springs of the sinuous spring band type.
  • a horizontally extending band portion or separate member is employed to develop vector thrust and translation adjacent the back rail only.
  • the translation once more induces stored resilience in a less pronounced manner than a direct pivotal connection, for example, to produce a softer seat.
  • FIGURE 1 is a side elevational view of a furniture spring arrangement incorporating a sinuous spring band assembly embodying features of a first form of the present invention, with parts removed;
  • FIGURE 2 is a side elevational view of the relaxed sinuous spring band employed in the first form of spring band assembly illustrated in FIGURE 1;
  • FIGURE 3 is a diagrammatic side elevational view of a furniture spring arrangement incorporating a sinuous spring band assembly embodying features of a second form of the present invention
  • FIGURE 4 is a diagrammatic side elevational view of a relaxed sinuous spring band employed in the spring band assembly illustrated in FIGURE 3;
  • FIGURE 5 is a diagrammatic side elevational view of a furniture spring arrangement incorporating a sinuous spring band assembly embodying features of a third form of the present invention
  • FIGURE 6 is a diagrammatic side elevational view of a relaxed sinuous spring band employed in the spring arrangement illustrated in FIGURE 5;
  • FIGURE 7 is a diagrammatic side elevational view of a furniture spring arrangement incorporating a sinuous spring band assembly embodying features of a fourth form of the present invention.
  • FIGURE 8 is a diagrammatic side elevational view of a relaxed sinuous spring band employed in the spring arrangement illustrated in FIGURE 7;
  • FIGURE 9 is an enlarged plan view of a portion of the spring arrangement illustrated in FIGURE 1;
  • FIGURE 10 is an enlarged plan view of another form of back-rail connection for the spring assembly
  • FIGURE 11 is an enlarged elevational view of still another form of back-rail connection
  • FIGURE 12 is an enlarged plan view of yet another form of back-rail connection
  • FIGURE 13 is an enlarged elevational view of a further variation of the back-rail connection
  • FIGURE 14 is an enlarged elevational view of a modified variation of the back-rail connection.
  • FIGURE 15 is a side elevational view, with parts broken away, of a simplified spring arrangement embodying features of the present invention.
  • the spring arrangement 10 includes a sinuous spring band assembly 11 embodying features of a first form of the present invention mounted between the front rail 12 and the back rail 13 of a conventional furniture frame 14 (only part of which is shown) for a chair, sofa, or vehicle or the like. Only one spring band assembly 11 is illustrated, but as will be readily understood, the frame 14 normally mounts a parallel series of these assemblies 11.
  • Each of the spring band assemblies 11 includes a new and improved sinuous spring band connected to the front rail 12 by EK clip 21 and to the back rail 13 by EK clip 22, for pivotal movement about their connections.
  • the spring band 20 inherently develops center area stored resilience in the band 20 as a subject is seated to assure deep-drop support of the subject, the avoidance of center area bucketing in the band, and the avoidance of rear-area jack-knifing or the like.
  • the new and improved spring band 20 develops a highly attractive and effective contour with a slight rearward incline and provides what is characterized relatively as a firm" seat in any type of frame, regardless of its length.
  • the spring band assembly 111 illustrated in FIGURE 3 and embodying features of a second form of the present invention develops a slightly softer seat; one which might be termed medium firm in the relative scale. This variation in firmness is achieved by providing a lesser rate of increase in stored resilience in the spring band 120 adjacent the front rail as the subject is seated.
  • a third form of sinuous spring band assembly embodying features of the present invention is illustrated at 211 in FIGURE 5.
  • the sinuous spring band assembly 211 provides a still softer ,seat on the relative scale, and might be termed medium soft, by providing a lesser rate of increase in stored resilience in the spring band 220 adjacent the back rail 13 as a subject is seated.
  • FIGURE 7 a fourth form of spring band assembly embodying features of the present invention is illustrated generally at 311.
  • the spring band assembly 311 produces the softest of seats on the relative scale and is generally referred to as soft.
  • soft Even in the shortest of frames such as might be employed in private aircraft, recliners, and so on, for example, where other torque sinuous constructions cannot function properly, superior resilience and greater comfort in a sinuous spring band seating arrangement is afforded.
  • increase in the rate of stored resilience in the band 320 is lessened adjacent both rails 12 and 13.
  • the sinuous spring band 20 illustrated is a regular loop sinuous spring band.
  • its individual loops 23 are broadly of standard configuration and dimension.
  • the linear segments 25 and interconnecting semi-circular segments 26 which define each loop 23 are of a predetermined standard length and radius, respectively.
  • the spring band 20, embodying features of the first form of the present invention is illustrated as a regular loop spring band, however, it should be understood that expanded loop (XL) and superloop spring bands (other forms well known in the furniture business) might also be used.
  • FIGURE 2 Precedent to describing the spring band 20 in its assembly 11, a better understanding of the invention is facilitated by referring to FIGURE 2 and the illustration of the band in relaxed relationship.
  • the band 20 will be seen to describe the larger part of a complete circle.
  • a rear end section 28 of the relaxed band 20 is bent inwardly of the circle at an angle of approximately 80-90 thereto, and a front end section 29 is bent inwardly of the circle at a lesser angle of approximately 7080. Varying these angles in proportion, however, can be done to control resilience.
  • the rear end section 28 includes the last linear segment 30 in the band 20 and the last semi-circular segment 31 thereof, bent inwardly about the second last linear segment 32.
  • the front end section 29 includes the last linear segment 34 at the opposite end of the band, and the last semi-circular segment 35 thereof, bent inwardly about the second last linear segment 36.
  • the sinuous spring band 20 is connected to the front rail 12 by the EK clip 21 and the back rail 13 by the EK clip 22, as has been pointed out.
  • the last linear segment 30 of the rear end section 28 is held in the loop of the EK clip 22 while the last linear segment 34 of the front section 29 in the band 20 is retained in the loop 41 of the EK clip 21. It will thus be seen that each end of the band 20 is mounted for pivotal movement about corresponding end linear segments 30 and 34 held in EK clip loops 4t] and 41, respectively.
  • a free end 34a of the last linear segment 34 in the front end section 29 is bent in an are generally perpendicular to the plane defined by the linear segment 34 and 36 and the semi-circular segment 35. As such, the linear segment 34 cannot pull out of the EK clip loops 41 during flexing of the band 20.
  • the opposite end sections 28 and 29 of the band pivot about their mounting linear segments and 34, respectively, and compression in the spring band is progressively increased.
  • the strength of the spring assembly 11 is progressively actually increased and bucketing of the band in the central body portion (such as was frequently encountered with known sinuous spring band arrangements) is avoided.
  • the stored resilience developed in the body portion 45 of the band 2% adjacent the back rail 13 of the frame 14 obviates jack-knifing of the hands, a common occurrence in the aforementioned prior art sinuous spring hand arrangements.
  • the differential in bend angles of the downwardly bent rear end section 28 and front end section 29 produces a lesser arc in the rear of the body portion 45 of the bend 29 than in the front portion thereof, as illustrated in FIGURE 1.
  • a highly desirable rearwardly sloping contour or profile of the sinuous spring band arrangement 1%) is thus achieved as an added feature of the relative bend angle differential.
  • the seat afforded by the use of spring assemblies 11 embodying the first form of the present invention hereinbefore described can generally be characterized as a firm seat, as pointed out.
  • the firm scat results from the arcuate movement of the inner linear segments 32 and 36 on opposite ends of the spring bands 20 with relatively high rate of increase in compression in the body portion 45 of the bands as the subject is seated.
  • a medium firm seat is afforded by the spring band assemblies 111 illustrated in FIGURE 4, as has also been pointed out. Ths medium firm seat is atforded by providing lesser rate of increase in stored resilience developed in the spring bands 12%) adjacent the front rail 12 of the frame 14 as a subject is seated.
  • the relaxed band 129 includes a rear end section 128 bent inwardly of the circle at an angle of approximately 99" thereto, and a front end section 129 bent inwardly of the circle at an angle of approximately 70-80.
  • the rear end section 123 includes the last linear segment 13%) in the band 12s) and the last semi-circular segment 131 thereof, bent inwardly about the second last linear segment 132.
  • the front end section 129 includes the second last linear segment 134 adjacent the opposite end of the band, and the second last semi-circular segment 135 thereof, bent inwardly about the third last linear segment 13s.
  • the spring band 120 includes an extension section 137 bent upwardly from the downwardly extending front end section 129.
  • the extension section 137 includes the last linear segment 13% at the front end of the band 12% and the last semi-circular segment 139 tl ereof, bent upwardly about the second last linear segment 134 at an angle of approximately 100 to the plane of the linear segments 134- and 13;; and their connecting semi-circular segment 135'.
  • the sinuous band is connected to the front rail 12 by the EK clip 21 and the back rail 13 by the EK clip 22.
  • the last linear segment of the rear end section 28 is held in the loop 40 of the EK clip 22 while the last linear segment 138 on the ex tension section 137 of the band 21 ⁇ is retained in the loop 41 of the EK clip 21.
  • Each end of the band 20 is thus mounted for pivotal movement about corresponding end linear segments 130 and 138 held in EK clip loops 40 and 41, respectively.
  • the rear end section 128 of the band pivots about its mounting linear segment 130 and tends to further compress or develop stored resilience in the central body portion 145 of the band.
  • the actual pivot point of the front end section 129 of the band 120 is displaced from the linear segment 134 to the free end linear segment 138 of the extension section 137. Accordingly, the effective pivot axis of the front end section 129 defined by its linear segment 1'34 moves linearly inward and downward of the spring band 120 in a translatory movement.
  • the stored resilience developed in the body portion 145 of the spring band 120 by the front end section 129 thereof is, accordingly, increased at a substantially lesser rate than is the stored resilience developed by the front end section 29 of the spring band 20 hereinbefore discussed in relation to the first form of the present invention. Accordingly, a slightly softer seat, which on our relative scale is defined as medium firm, is effected by the spring band assembly 111.
  • the differential in bend angles of the downwardly bent rear end section 128 and front end section 129 produce a lesser arc in the rear of the body portion 145 of the band 128 than in the front portion thereof, as illustrated in FIGURE 3.
  • the highly desirable rearwardly sloping contour or profile of the sinuous spring arrangement 10 is also achieved in this form of the present invention.
  • a medium soft seat is afforded by the spring band assembly 211 illustrated in FIGURE 5, as has also been pointed out.
  • This medium soft seat is the result of providing a lesser rate of increase in stored resilience development in the spring band 220 adjacent the back rail 13 of the frame 14, as a subject is seated.
  • the relaxed band 220 includes a rear end section 228 bent inwardly of the circle at an angle of approximately 8090 thereto, and a front end section 229 bent inwardly of the circle at an angle of approximately 70- 80.
  • the rear end section includes the second-last linear segment 230 in the band 220 and the second-last semicircular segment 231 thereof, bent inwardly about the third last linear segment 232.
  • the front end section 229 includes the last linear segment 234 adjacent the opposite end of the band, and the last semicircular segment 235 thereof, bent inwardly about the second last linear segment 236.
  • the spring band 220 includes an extension section 257 bent upwardly from the downwardly extending rear end section 228.
  • the extension section 257 includes the last linear segment 258 at the rear end of the band 220 and the last semi-circular segment 259 thereof, bent upwardly about the second last linear segment 230 at an angle of approximately 110 to the plane of the linear segments 2'30 and 232 and their connecting semi-circular segment 231.
  • the sinuous band 220 is connected to the front rail 12 by the BK clip 21 and the back rail 13 by the EK clip 22.
  • the last linear segment in the extension section 257 on the rear end section 228 is held in the loop 40 of the EK clip 22 while the last linear segment 234 on the front end section 229 is retained in the loop 41 of the EK clip 21.
  • Each end of the band 20 is thus mounted for pivotal movement about corresponding ends linear segments 258 and 234 held in EK clip loops 40 and 41, respectively.
  • the front end section 229 of the band pivots about its mounting linear segment 234 and tends to further compress or develop stored resilience in the body portion 245 of the band.
  • the actual pivot point of the rear end section 228 is displaced from the linear segment 230 to the free end linear segment 258 on the extension section 257. Accordingly, the effective pivot axis of the rear end section 228 defined by its linear segment 230 moves linearly inward and downward of the spring band 220 in a translatory movement.
  • the stored resilience developed in the body portion 245 of the spring band 220 by the rear end section 228 thereof is accordingly, increased at a substantially lesser rate than is the stored resilience developed by the rear end sections 28 and 128 of the spring bands 20 and 120 hereinbefore discussed in relation to the first tow forms of the present invention. Since the more acutely bent rear end section 228 of the spring band 220 normally develops slightly greater stored resilience in the band adjacent the rear end thereof than the front end section 229, modification of its capacity for inducing stored resilience produces a relatively softer seat than the spring assembly 111 hereinbefore discussed; a seat which on our relative scale is defined as medium soft.
  • FIGURE 7 A fourth form of spring band assembly embodying features of the present invention is illustrated generally in FIGURE 7 and, in our relative scale of firmness versus softness, provides a soft seat. This sof seat is afforded by providing a lesser rate of increase in stored resilience developed in spring band 320 adjacent both the front rail 12 and the back rail 13 of the frame 14 as a subject is seated.
  • the spring band 320 is illustrated in relaxed relationship in FIGURE 8.
  • the band 320 includes a rear end section 228 bent inwardly of the circle at an angle of approximately 80-90 thereto, and a front end section bent inwardly of the circle at an angle of approximately 7080. To this extent it is identical in construction to the spring band hereinbefore discussed.
  • the band 329 includes an extension section 337 bent upwardly from the downwardly extending front end section 129 and an extension section 357 bent upwardly from the downwardly extending rear end section 328.
  • Corresponding linear segments 334 and 358 are retained in EK clip loops 41 and 40, respectively, on the front rail 12 and back rail 13.
  • FIGURES 10-14 several variations on back rail connections between sinuous spring bands and the back frame rail are illustrated. Each provides the back rail translation and vector thrust hereinbefore discussed in relation to the spring assemblies 211 and 311, for example.
  • FIGURE 10 a variation on the first form of furniture spring arrangement illustrated in FIGURE 9 is shown generally at 410.
  • the spring arrangement 410 includes a sinuous spring band assembly 411 mounted between the front rail (not shown) and the back rail 413 of a frame 414.
  • the sinuous spring band assembly 411 includes a sinuous spring band 420, identical to that herebefore discussed, connected to the back rail 413 through a back connector sub-assembly 422 which provides enhanced lateral stability to the spring band 420 according to the present variation, in addition to providing the elicited advantages of the present invention.
  • the back connector sub-assembly 422 comprises a. diverging pair of helical springs 4220 which interconnect the sinuous spring band 420 with the back rail 413. As will be noted, it includes a I clip 423 which encircles the end linear segment in the depending lever arm 424 of the spring band 420 and has three apertures formed therein, the outer two bracketing the inner one. The apertures receive the book ends of the helical springs 422a in the manner illustrated. In a corresponding manner, the opposite hook ends of the helical springs 422a extend through apertures in L-clips 432 secured to the back rail 413.
  • the clip 423 and helicals 422a serve as translatory members to permit the back end of the band 420 to move down while torque is induced in it through the arm 424.
  • a substantially soft seat on our relative scale, is developed.
  • the use of helical springs to connect the band 420 to the back rail 413 provides the additional feature of automatic adjustability of the spring assembly 410 to fit a seated persons thigh length. The best flexing of the arm 424 for the specific comfort of that weight and size sitter is achieved.
  • FIGURE 11 illustrates yet another variation on the first form of furniture spring arrangement, as shown at 510.
  • the furniture spring arrangement 510 includes a sinuous spring band assembly 511 mounted between the front rail (not shown) and the back rails 513 of a seating frame 514.
  • the assembly 511 includes a sinuous spring band 520 identical to that hereinbefore discussed with the exception that a Z-hook 521 is provided extending directly outwardly from the last linear segment 530.
  • the Z-hook 521 is then connected to the back rail 513 through a back connector sub-assembly 522.
  • FIGURE 14 illustrates, at 510a, a slight modification of the furniture spring arrangement variation 510 seen in FIGURE 11.
  • the Z-hook 521a actually replaces the horizontally extending band section 529 entirely.
  • it is the extending Z-hook 521a, in combination with the helical 522a, which permits downward translation of the spring band end to assure a soft seat.
  • FIGURE 12 A variation on the second form of the present invention is illustrated at 610 in FIGURE 12.
  • a back connector sub-assembly 622 is provided which connects the last linear segment 651 of the spring band 620 to the back rail 613 in articulated relationship.
  • the back connector sub-assembly includes a U-shaped wire clip 623 which has a pair of loops 624 formed on its free ends for encircling the last linear segment 651.
  • the base 625 of the U-shaped link 623 is retained in a standard EK clip 630.
  • This construction provides translation downwardly at the rear rail of the furniture frame, of course, achieving vector thrust and a relatively soft seat, albeit not as soft as when a helical is used.
  • FIGURE 13 illustrates another variation of the second form of the present invention, as illustrated generally at 710.
  • the rear end 720:: of the sinuous spring band 720 has its third and second last semi-circular segments 721 and 722 bent downwardly in a plane about the fourth last linear segment 723.
  • the last semicircular segment 724 is bent upwardly about the second last linear segment 725 and the last linear segment is secured to the frame 713 by an EK clip 726 or the like.
  • the action at the rear end 720a is similar to the action of the spring arrangement 211 illustrated in FIGURE 5.
  • the spring arrangement 810 comprises a spring band 820 arranged and connected between a front rail 812 and a back rail 813 according to the invention.
  • the band 820 is connected at its frontmost linear segment 830 by a conventional EK clip. As such, the front end 820a of the band 820 is free to pivot downwardly about its point of attachment with the front rail 812.
  • the band 820 Adjacent the back rail 813, the band 820 is bent downwardly into a torque arm 831 about the third last linear segment 832 of the band.
  • a horizontally extending translation arm 833 defined by the last two linear segments 835 and 836 and their enclosed semi-circular segment extends to and is pivotally retained by a standard EK clip 840.
  • the back end 82% construction of the spring band 820 provides the vector-thrust translatory movement of the band beneath the seat of the person being seated. Torque is slowly and evenly induced in the band 820 as it sinks at its rear end 820a, providing a luxuriously soft, yet firm seat with up-thrust under the occupant as he rises.
  • a sinuous spring band which in its relaxed form is substantially circular in profile and which in its installed operational form is stretched between the rails, said band including a series of semicircular segments interconnecting a series of linear segments, a linear segment at the front free end of said band being connected to the front rail for pivotal movement relative thereto, a back portion of said band bent downwardly from the main body portion of said band and defining an interior angle of at least to degrees with said main body portion when said band is in its installed, operational form, the profile of said main body portion defining a flattened curve without bends extending out of the curve from adjacent said front end of said band to said back portion, substantially horizontal means extending generally parallel to said main body portion from the lower end of said back portion, the free end of said substantially horizontal means being connected to the back rail for pivotal movement relative thereto, said downwardly bent portion simultaneously translating downwardly and rotating outwardly to compress said main body portion of
  • substantially hori zontal means comprises a band portion including a single semi-circular segment and its bracketing linear segments.
  • said substantially horizontal means includes clip means pivotally connected to the last linear segment on said spring band adjacent said back rail, said clip means being connected to the back rail for pivotal movement relative thereto.
  • said substantially horizontal means includes an outwardly extending J-hook on said downwardly bent back portion of said band, and helical spring means connecting said J-hook to the back rail for pivotal movement relative thereto.

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  • Springs (AREA)
  • Seats For Vehicles (AREA)
US602448A 1965-02-23 1966-11-28 Spring construction Expired - Lifetime US3388904A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE19661554012 DE1554012B1 (de) 1965-02-23 1966-02-15 Federanordnung fuer einen Sitzrahmen od.dgl.
US602448A US3388904A (en) 1965-02-23 1966-11-28 Spring construction
GB26542/67A GB1207650A (en) 1965-02-23 1967-09-22 Improvements in and relating to spring assemblies
GB43179/67A GB1210237A (en) 1965-02-23 1967-09-22 Improvements in and relating to spring assemblies
DE19671654317 DE1654317B1 (de) 1965-02-23 1967-11-09 federanordnung für sitzrahmen von m¦beln
US719808*A US3525514A (en) 1965-02-23 1968-01-10 Spring construction

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US43456365A 1965-02-23 1965-02-23
US602448A US3388904A (en) 1965-02-23 1966-11-28 Spring construction
GB26542/67A GB1207650A (en) 1965-02-23 1967-09-22 Improvements in and relating to spring assemblies
GB43179/67A GB1210237A (en) 1965-02-23 1967-09-22 Improvements in and relating to spring assemblies
US719808*A US3525514A (en) 1965-02-23 1968-01-10 Spring construction

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Publication Number Publication Date
US3388904A true US3388904A (en) 1968-06-18

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US602448A Expired - Lifetime US3388904A (en) 1965-02-23 1966-11-28 Spring construction
US719808*A Expired - Lifetime US3525514A (en) 1965-02-23 1968-01-10 Spring construction

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Application Number Title Priority Date Filing Date
US719808*A Expired - Lifetime US3525514A (en) 1965-02-23 1968-01-10 Spring construction

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US (2) US3388904A (de)
DE (2) DE1554012B1 (de)
GB (2) GB1207650A (de)

Cited By (2)

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Publication number Priority date Publication date Assignee Title
US4303232A (en) * 1979-02-21 1981-12-01 Morley Furniture Spring Corporation Seat spring assembly (torque-coil)
US20040160113A1 (en) * 2003-02-19 2004-08-19 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Vehicle seat for a motor vehicle

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US3773310A (en) * 1971-09-30 1973-11-20 Morley Furniture Co Spring construction
US4586700A (en) * 1981-01-26 1986-05-06 Morley Furniture Spring Corporation Modular seat spring assembly
US4715587A (en) * 1986-04-07 1987-12-29 Morley Furniture Spring Corporation Sinuous band and seat spring assembly

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US3207499A (en) * 1960-12-22 1965-09-21 American Metal Prod Supporting device for spring strips

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US2123888A (en) * 1938-07-19 Wire spuing for cushioned seats
DE564673C (de) * 1931-04-16 1932-11-23 Karl Kaden Verfahren zur Sicherung von Welldrahtflachfedern gegen Durchschlagen
CH206149A (de) * 1938-07-20 1939-07-31 Bingesser Benedikt Federung für Polster, Matratzen, Kissen und dergl.
US2698650A (en) * 1949-04-19 1955-01-04 American Metal Prod Zigzag spring unit having open supporting end
US3081076A (en) * 1961-03-07 1963-03-12 Saginaw Wire Products Inc Springs for seats and backs
DE1872105U (de) * 1961-07-22 1963-05-16 No Sag Drahtfedern Gmbh Wellenfoermig gebogene flachfeder.

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Publication number Priority date Publication date Assignee Title
US2646108A (en) * 1951-04-30 1953-07-21 Zig Zag Spring Company Spring
US3156457A (en) * 1956-06-12 1964-11-10 Rockwell Standard Co Sinuous wire seat spring
US3207499A (en) * 1960-12-22 1965-09-21 American Metal Prod Supporting device for spring strips

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4303232A (en) * 1979-02-21 1981-12-01 Morley Furniture Spring Corporation Seat spring assembly (torque-coil)
US20040160113A1 (en) * 2003-02-19 2004-08-19 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Vehicle seat for a motor vehicle
US7036864B2 (en) * 2003-02-19 2006-05-02 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Vehicle seat for a motor vehicle

Also Published As

Publication number Publication date
DE1654317B1 (de) 1972-02-03
GB1210237A (en) 1970-10-28
US3525514A (en) 1970-08-25
DE1554012B1 (de) 1970-08-27
GB1207650A (en) 1970-10-07

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