Patent US3853296A successfully refreshed from Google Patents.
US3853296A
Expired / Lapsed
US
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Vehicle seat with suspension device
Assignee: Volvo AB
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Filing: 1973-03-02
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Granted: 1974-12-10
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Expires: 1993-03-02
Abstract
Abstract A vehicle seat suspension device includes one pair of links, arranged on opposite sides of a vehicle seat bottom, the separate links of each pair intersecting each other and being joined together at their point of intersection. One link in each pair of links is firmly connected to the corresponding link of the opposite pair and is pivotally joined at its ends to the seat bottom and to a supporting portion. The other link arm is pivotally joined to any one of its three points of attachment and is both pivotally and displaceably arranged at the other two points of attachment. The rear end of the former pivotally connected link has a portion which is angled upwardly and the rear pivot point of the link lies within this portion so that the front and rear pivot points are roughly on the same level in the normal height position of the seat.
Inventors
- 👤 C Forssell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:09
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/50; B60N2/504; B60N2/505; B60N2/506; B60N2/508; B60N2/54; B60N2/548
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
261 words
In a vehicle seat with a suspension device comprising two pairs of link arms, at least one of said link arms in one of said pairs of link arms being rigidly joined to the corresponding link arm of the other pair of link arms, said two pairs of link arms being arranged on opposite sides of said seat, a portion of the vehicle supporting said seat, said seat being movable toward and away from said supporting portion in a direction substantially perpendicular to said supporting portion, each of said link arms having three places of connection, namely at said point of intersection, the bottom of said seat and said supporting portion, a first link arm of each of said pairs of link arms being joined pivotally at said three places of connection, the second link arm of each of said pairs of link arms being pivotally joined at one of said places of connection and substantially horizontally displaceable at said two other places of connection, and spring means to counteract said movement of said seat bottom in said direction towards said supporting portion; the improvement in which the points of pivotal connection of said first arm to said seat bottom and to said supporting portion are at substantially the same horizontal level, said first link arm in each of said pairs of link arms being longer than said second link arm in each of said pairs of link arms, said ends of said first link arm being situated outside said ends of said second link arm seen sideways of said seat.
Claim 2
Dependent Claim
261 words
In a vehicle seat with a suspension device comprising two pairs of link arms, at least one of said link arms in one of said pairs of link arms being rigidly joined to the corresponding link arm of the other pair of link arms, said two pairs of link arms being arranged on opposite sides of said seat, a portion of the vehicle supporting said seat, said seat being movable toward and away from said supporting portion in a direction substantially perpendicular to said supporting portion, each of said link arms having three places of connection, namely at said point of intersection, the bottom of said seat and said supporting portion, a first link arm of each of said pairs of link arms being joined pivotally at said three places of connection, the second link arm of each of said pairs of link arms being pivotally joined at one of said places of connection and substantially horizontally displaceable at said two other places of connection, and spring means to counteract said movement of said seat bottom in said direction towards said supporting portion; the improvement in which the points of pivotal connection of said first arm to said seat bottom and to said supporting portion are at substantially the same horizontal level, said first link arm in each of said pairs of link arms being longer than said second link arm in each of said pairs of link arms, said ends of said first link arm being situated outside said ends of said second link arm seen sideways of said seat.
Claim 3
Dependent Claim
42 words
A seat as claimed in claim 1, wherein the rear end of said first link arm has a part that is angled upward, the axis of pivotal connection of said first arm to said supporting portion passing through said upward angled part.
References Cited (Backward Citations)
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Cited
US2652880A
Cited
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Cited
FR1372202A
Cited
US3301520A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |