Patent US5199679A successfully refreshed from Google Patents.
US5199679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Height adjusting device for a seat
Assignee: Aisin Corp
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Filing: 1991-07-05
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Granted: 1993-04-06
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Expires: 2011-07-05
Abstract
Abstract A height adjusting device for a seat comprises a seat-cushion, an operating mechanism for moving simultaneously a frontward portion and a rearward portion of a seat-cushion in the vertical direction, and a reclining mechanism for adjusting of the reclining angle of the seat-cushion by moving the frontward portion thereof in the vertical direction wherein the operating mechanism is operated without affecting the adjusted reclining angle of the seat-cushion established by the reclining mechanism.
Inventors
- 👤 Yoshihiko Nakamura
- 👤 Yukifumi Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:33
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/04; B60N2/16; B60N2/18; B60N2/1803; B60N2/1807; B60N2/1842; B60N2/185; B60N2/1864
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
142 words
A height adjusting device for a seat comprising: a lower arm; a seat-cushion having a front end portion and a rear end portion; a first operating mechanism including a rear bell-crank pivotally-connected to the lower arm and having one end portion connected to the rear end portion of the seat-cushion, a first sector-gear pivotally-connected to the lower arm and connected to the other end portion of the rear bell-crank, and a first handle for rotating the first sector-gear a and a second operating mechanism including a second sector-gear pivotally-connected to the lower arm, a swing link pivoted at one end portion thereof to the second sector-gear, a front bell-crank having one end portion connected to the front end portion of the seat-cushion and the other end portion connected to the first sector gear, and a second handle for rotating the second-sector gear.
Claim 2
Dependent Claim
142 words
A height adjusting device for a seat comprising: a lower arm; a seat-cushion having a front end portion and a rear end portion; a first operating mechanism including a rear bell-crank pivotally-connected to the lower arm and having one end portion connected to the rear end portion of the seat-cushion, a first sector-gear pivotally-connected to the lower arm and connected to the other end portion of the rear bell-crank, and a first handle for rotating the first sector-gear a and a second operating mechanism including a second sector-gear pivotally-connected to the lower arm, a swing link pivoted at one end portion thereof to the second sector-gear, a front bell-crank having one end portion connected to the front end portion of the seat-cushion and the other end portion connected to the first sector gear, and a second handle for rotating the second-sector gear.
Claim 3
Dependent Claim
38 words
A height adjusting device in accordance with claim 1 further comprising a first spring coupler disposed between the first sector-gear and the first handle, and a second spring coupler disposed between the second sector-gear and the second handle.
Claim 4
Dependent Claim
47 words
A height adjusting device in accordance with claim 1, wherein the first handle is provided with a first pinion which is in meshing engagement with the first sector-gear, and the second handle is provided with a second pinion which is in meshing engagement with the second sector-gear.
Claim 5
Dependent Claim
48 words
A height adjusting device in accordance with claim 3, wherein the first sector-gear and the second-sector gear are both connected to the lower arm so that their respective gears have the same rearward-facing orientation so as to be engaged with the first pinion and the second pinion, respectively.
Claim 6
Dependent Claim
163 words
A height adjusting device for a seat comprising: a lower arm; a seat-cushion having a front end portion and a rear end portion; a first operating mechanism including a rear bell-crank pivotally-connected to the lower arm and having one end portion connected to the rear end portion of the seat-cushion, a first sector-gear pivotally-connected to the lower arm, a first link connecting the first sector-gear to the other end portion of the rear bell-crank, and a first handle for rotating the first sector-gear; and a second operating mechanism including a second sector-gear pivotally-connected to the lower arm, a swing link pivotally-connected at one end portion thereof to the second sector-gear, a front bell-crank connected to the other end portion of the swing link and having one end portion connected to the front end portion of the seat-cushion, a second link connecting the first sector-gear to the other end portion of the front bell-crank, and a second handle for rotating the second sector gear.
Claim 7
Dependent Claim
163 words
A height adjusting device for a seat comprising: a lower arm; a seat-cushion having a front end portion and a rear end portion; a first operating mechanism including a rear bell-crank pivotally-connected to the lower arm and having one end portion connected to the rear end portion of the seat-cushion, a first sector-gear pivotally-connected to the lower arm, a first link connecting the first sector-gear to the other end portion of the rear bell-crank, and a first handle for rotating the first sector-gear; and a second operating mechanism including a second sector-gear pivotally-connected to the lower arm, a swing link pivotally-connected at one end portion thereof to the second sector-gear, a front bell-crank connected to the other end portion of the swing link and having one end portion connected to the front end portion of the seat-cushion, a second link connecting the first sector-gear to the other end portion of the front bell-crank, and a second handle for rotating the second sector gear.
Claim 8
Dependent Claim
24 words
A height adjusting device in accordance with claim 5 wherein said first link and said second link are connected together at said first sector-gear.
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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) | 1996-04-05 | 1996-10-05 | 1997-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-05 | 2000-10-05 | 2001-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-05 | 2004-10-05 | 2005-04-06 | $7700.00 | Window Closed / Lapsed |