US3797886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat frames
Assignee: L&P Swiss Holding GmbH
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Filing: 1972-08-01
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Granted: 1974-03-19
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Expires: 1992-08-01
Abstract
Abstract A seat frame, particularly for an automobile, comprises a base frame; a pad which comprises a series of parallel cords and a series of parallel cross-wires, and is suspended across the base frame by means of two rows of tension spring members extending from opposite sides of the base frame for connection with the corresponding side edges of the pad; and an edge frame mounted above the base frame on jack spring members which extend upwardly and outwardly from the side edge regions of the pad and are secured at their upper ends to said edge frame. The jack spring members may constitute the upper limbs of jack springs which are anchored at their lower ends on said base frame, or may constitute the upper limbs of jack springs having short horizontal lower limbs which interconnect said rows of tension spring members and the corresponding side edges of the pad. The pad is usually central, and supplementary pads may be arranged wt the sides of the central pad to provide insulation from the individual jack spring members.
Inventors
- 👤 D Griffiths
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:18
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/70; B60N2/7023; B60N2/7035; B60N2/7041
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
181 words
A seat frame comprising a base frame having opposite sides, a pad having side edges, two rows of tension spring members connected to and extending from the opposite sides of the base frame, means connecting said spring members with the corresponding side edges of the pad to suspend the pad across the base frame, jack springs engaged at their lower ends with the side edge regions of the pad and extending upwardly and outwardly therefrom, and an edge frame mounted above the base frame on the upper end parts of said jack springs, wherein said pad includes cords extending along the side edges thereof, and in which at least a number of said jack springs constitute acutely angled upper and lower limbs, the associated pad edge cord being engaged in the angle between said limbs, the upper and lower limbs of said jack springs cooperating to form slots along which the side cords of the pad are free to slide, said tension spring members being connected directed to said side cords, and said lower limbs being anchored on said base frame.
Claim 2
Dependent Claim
181 words
A seat frame comprising a base frame having opposite sides, a pad having side edges, two rows of tension spring members connected to and extending from the opposite sides of the base frame, means connecting said spring members with the corresponding side edges of the pad to suspend the pad across the base frame, jack springs engaged at their lower ends with the side edge regions of the pad and extending upwardly and outwardly therefrom, and an edge frame mounted above the base frame on the upper end parts of said jack springs, wherein said pad includes cords extending along the side edges thereof, and in which at least a number of said jack springs constitute acutely angled upper and lower limbs, the associated pad edge cord being engaged in the angle between said limbs, the upper and lower limbs of said jack springs cooperating to form slots along which the side cords of the pad are free to slide, said tension spring members being connected directed to said side cords, and said lower limbs being anchored on said base frame.
Claim 3
Dependent Claim
60 words
A seat frame as claimed in claim 1 in which said pad is centrally disposed between said base frame sides and with the addition of supplementary pads disposed at the sides of the central pad to provide insulation from the individual jack springs, said supplementary pads overlying said jack springs and being attached thereto, but not to said central pad.
Claim 4
Dependent Claim
163 words
A seat frame comprising a base frame having opposite sides, a pad having side edges, two rows of tension spring members connected to and extending from the opposite sides of the base frame, means connecting said spring members with the corresponding side edges of the pad to suspend the pad across the base frame, jack springs engaged at their lower ends with the side edge regions of the pad and extending upwardly and outwardly tHerefrom, and an edge frame mounted above the base frame on the upper end parts of said jack springs, at least a number of said jack springs comprising acutely angled upper and lower limbs, the associated pad edge being engaged in the angle between said limbs, said lower limbs being short and connected at their free ends to at least the forward groups of said rows of tension spring members, thereby to serve as said means connecting said tension spring members with the corresponding side edges of the pad.
Claim 5
Dependent Claim
163 words
A seat frame comprising a base frame having opposite sides, a pad having side edges, two rows of tension spring members connected to and extending from the opposite sides of the base frame, means connecting said spring members with the corresponding side edges of the pad to suspend the pad across the base frame, jack springs engaged at their lower ends with the side edge regions of the pad and extending upwardly and outwardly tHerefrom, and an edge frame mounted above the base frame on the upper end parts of said jack springs, at least a number of said jack springs comprising acutely angled upper and lower limbs, the associated pad edge being engaged in the angle between said limbs, said lower limbs being short and connected at their free ends to at least the forward groups of said rows of tension spring members, thereby to serve as said means connecting said tension spring members with the corresponding side edges of the pad.
Claim 6
Dependent Claim
61 words
A seat frame as claimed in claim 3 in which said pad is centrally disposed between said base frame sides, and with the addition of supplementary pads disposed at the sides of the central pad to provide a insulation from the individual jack springs, said supplementary pads overlying said jack springs and being attached thereto, but not to said central pad.
Claim 7
Dependent Claim
139 words
A seating frame comprising a base frame having opposite sides, two rows of tension spring members connected to and extending from the opposite sides of the base frame, means connecting said spring members with the corresponding side edges of the pad to suspend the pad across the base frame, jack springs engaged at heir lower ends with the side edge regions of the pad and extending upwardly and outwardly therefrom, and an edge frame mounted above the base frame on the upper end parts of said jack springs, at least a number of said jack spring comprising acutely angled upper and lower limbs, the corresponding side edge of said pad being engaged in the angle between said limbs, and said lower limbs incorporating helical lengths which provide at least the forward groups of said rows of tension spring members.
Claim 8
Dependent Claim
139 words
A seating frame comprising a base frame having opposite sides, two rows of tension spring members connected to and extending from the opposite sides of the base frame, means connecting said spring members with the corresponding side edges of the pad to suspend the pad across the base frame, jack springs engaged at heir lower ends with the side edge regions of the pad and extending upwardly and outwardly therefrom, and an edge frame mounted above the base frame on the upper end parts of said jack springs, at least a number of said jack spring comprising acutely angled upper and lower limbs, the corresponding side edge of said pad being engaged in the angle between said limbs, and said lower limbs incorporating helical lengths which provide at least the forward groups of said rows of tension spring members.
Claim 9
Dependent Claim
60 words
A seat frame as claimed in claim 7 in which said pad is centrally disposed between said base frame sides, and with the addition of supplementary pads disposed at the sides of the central pad to provide insulation from the individual jack springs, said supplementary pads overlying said jack springs and being attached thereto, but not to said central pad.
Claim 10
Dependent Claim
144 words
A seat frame comprising a base frame having opposite sides, two rows of tension spring members connected to and extending from the opposite sides of the base frame, means connecting said spring members with the corresponding edges of the pad to suspend the pad across the base frame, jack springs engaged at their lower ends with the side edge regions of the pad and extending upwardly and outwardly therefrom, and an edge frame mounted above the base frame on the upper end parts of said jack springs, at least a number of said jack springs each comprising a pair of upper limbs and an interconnecting common lower limb which is acutely angled to said upper limbs and is attached to one of said tension spring members, the corresponding side edge of said pad being engaged in the angle between said upper and lower limbs.
Claim 11
Dependent Claim
144 words
A seat frame comprising a base frame having opposite sides, two rows of tension spring members connected to and extending from the opposite sides of the base frame, means connecting said spring members with the corresponding edges of the pad to suspend the pad across the base frame, jack springs engaged at their lower ends with the side edge regions of the pad and extending upwardly and outwardly therefrom, and an edge frame mounted above the base frame on the upper end parts of said jack springs, at least a number of said jack springs each comprising a pair of upper limbs and an interconnecting common lower limb which is acutely angled to said upper limbs and is attached to one of said tension spring members, the corresponding side edge of said pad being engaged in the angle between said upper and lower limbs.
Claim 12
Dependent Claim
60 words
A seat frame as claimed in claim 7 in which said pad is centrally disposed between said base frame sides, and with the addition of supplementary pads disposed at the sides of the central pad to provide insulation from the individual jack springs, said supplementary pads overlying said jack springs and being attached thereto, but not to said central pad.
Claim 13
Dependent Claim
160 words
A seat frame comprising a base frame having opposite sides, two rows of tension spring members connected to and extending from the opposite sides of the base frame, means connecting said spring members with the corresponding side edges of the pad to suspend the pad across the base frame, jack springs engaged at their lower ends with the side edge regions of the pad and extending outwardly and upwardly therefrom, and an edge frame mounted above the base frame on the upper end parts of said jack springs, at least a number of said jack springs each comprising a pair of upper limbs, an interconnecting yoke which is secured to the edge frame, and a pair of lower limbs which are acutely angled to said upper limbs, and each of which lower limbs is attached to one of said tension spring memBers, the corresponding side edge of said pad being engaged in the angle between said upper and lower limbs.
Claim 14
Dependent Claim
160 words
A seat frame comprising a base frame having opposite sides, two rows of tension spring members connected to and extending from the opposite sides of the base frame, means connecting said spring members with the corresponding side edges of the pad to suspend the pad across the base frame, jack springs engaged at their lower ends with the side edge regions of the pad and extending outwardly and upwardly therefrom, and an edge frame mounted above the base frame on the upper end parts of said jack springs, at least a number of said jack springs each comprising a pair of upper limbs, an interconnecting yoke which is secured to the edge frame, and a pair of lower limbs which are acutely angled to said upper limbs, and each of which lower limbs is attached to one of said tension spring memBers, the corresponding side edge of said pad being engaged in the angle between said upper and lower limbs.
Claim 15
Dependent Claim
60 words
A seat frame as claimed in claim 9 in which said pad is centrally disposed between said base frame sides, and with the addition of supplentary pads disposed at the sides of the central pad to provide insulation from the individual jack springs, said supplementary pads overlying said jack springs and being attached thereto, but not to said central pad.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |