US4913491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive seat with side supports-mounted seatback
Assignee: Nissan Shatai Co Ltd
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Filing: 1989-03-10
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Granted: 1990-04-03
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Expires: 2009-03-10
Abstract
Abstract Herein disclosed is an automotive seat which comprises a seatback proper; and a pair of side supports which are pivotally connected through respective pivot shafts to both sides of the seatback proper, each side support including a front surface which extends in a given direction. The thickness of each side support gradually decreases with increase of height of the same, and each pivot shaft extends substantially in the given direction.
Inventors
- 👤 Shyozi Mizuno
- 👤 Toru Kondo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:06
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/90; B60N2/986; B60N2/99
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
107 words
An automotive seat comprising: a seatback proper; and a pair of side supports which are pivotally connected through respective pivot shafts to both sides of said setback proper, each side support including an elongate front surface whose longitudinal axis extends in a given direction, said side supports being arranged in such a manner that the distance therebetween gradually decreases with increase of heights of the side supports, wherein the thickness of each side support gradually decreases with increase of height of the same, each pivot shaft extends in a direction substantially in parallel with said given direction, and said pivot shafts extend in parallel with each other.
Claim 2
Dependent Claim
107 words
An automotive seat comprising: a seatback proper; and a pair of side supports which are pivotally connected through respective pivot shafts to both sides of said setback proper, each side support including an elongate front surface whose longitudinal axis extends in a given direction, said side supports being arranged in such a manner that the distance therebetween gradually decreases with increase of heights of the side supports, wherein the thickness of each side support gradually decreases with increase of height of the same, each pivot shaft extends in a direction substantially in parallel with said given direction, and said pivot shafts extend in parallel with each other.
Claim 3
Dependent Claim
43 words
An automotive seat as claimed in claim 1, in which each of said pivot shafts inclines with respect to an imaginary axis which extends perpendicular to an upper surface of a seat cushion which is adapted to be combined with said seatback proper.
Claim 4
Dependent Claim
38 words
An automotive seat as claimed in claim 2, in which said imaginary axis is likely to become an axis which coincides with the axis of the body of a seat occupant who is properly sitting on said seat.
Claim 5
Dependent Claim
22 words
An automotive seat as claimed in claim 1, in which said seatback proper comprises a rectangularly extending frame including opposed side parts.
Claim 6
Dependent Claim
31 words
An automotive seat as claimed in claim 4, in which said pair of side supports are pivotally connected to said opposed side parts of said frame respectively through a pivotal mechanism.
Claim 7
Dependent Claim
31 words
An automotive seat as claimed in claim 5, in which said pivoting mechanism comprises two groups of parts which are respectively mounted to said opposed side parts of the frame respectively.
Claim 8
Dependent Claim
59 words
An automotive seat as claimed in claim 6, in which each group comprises: two spaced brackets secured to one of the opposed side parts of the frame; a wing; a pivot shaft secured to said wing and pivotally connected to said two spaced brackets, so that said wing pivots together with said pivot shaft relative to said two brackets.
Claim 9
Dependent Claim
23 words
An automotive seat as claimed in claim 7, further comprising a simultaneously transmitting mechanism by which said two groups of parts operate simultaneously.
Claim 10
Dependent Claim
54 words
An automotive seat as claimed in claim 8, in which said simultaneously transmitting mechanism comprises: two arms which have respective ends secured to the pivot shafts of the respective two groups and extend in opposite directions; and a transmitting bar having both ends respectively and pivotally connected to leading ends of said two arms.
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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) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |