US5575531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle power seat adjuster with end driven lead screw actuation
Assignee: Lear Corp
•
Filing: 1993-12-15
•
Granted: 1996-11-19
•
Expires: 2013-12-15
Abstract
Abstract A power seat adjuster includes a rotatable drive shaft with first and second axial ends and an intermediate arcuate portion connecting the first and second axial ends. The first and second axial ends are respectively axially connected to a drive motor gear assembly and to a driven lead screw. A horizontal drive block threadingly engaging the lead screw is rotatably and vertically translatingly mounted in an aperture in a lower track for self-alignment of the drive block with respect to the lead screw. A housing rotatably receives the axial connection between one end of the drive shaft and the lead screw. The bearing block is rotatably and translatingly mounted in a bracket fixed to an upper track for self-alignment of the drive shaft with the lead screw. A drive block engages the lead screw and is mounted for rotation and translation in a link. The upper and lower tracks have a guide section and an abutment section which collapse together in a self-cinching action under force loading to resist separation of the upper and lower tracks.
Inventors
- 👤 Derek K. Gauger
- 👤 Max O. Heesch
- 👤 Richard W. A. Rees
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:40
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/22; B60N2/23; B60N2/233; B60N2/0224; B60N2/02246; B60N2/04; B60N2/06; B60N2/067; B60N2/07; B60N2/075
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
112 words
A drive apparatus for a power seat adjuster having a first component movable relative to a second component comprising: a rotatable drive shaft having first and second axial ends and an intermediate portion connecting the first and second axial ends; a driven shaft; means, adapted to be coupled to the driven shaft and the first component, for moving the first component relative to the second component upon rotation of the driven shaft; the second end of the drive shaft co-axially connected to the driven shaft in a fixed connection for simultaneous rotation of the drive shaft and the driven shaft; and means for rotating the first axial end of the drive shaft.
Claim 2
Dependent Claim
112 words
A drive apparatus for a power seat adjuster having a first component movable relative to a second component comprising: a rotatable drive shaft having first and second axial ends and an intermediate portion connecting the first and second axial ends; a driven shaft; means, adapted to be coupled to the driven shaft and the first component, for moving the first component relative to the second component upon rotation of the driven shaft; the second end of the drive shaft co-axially connected to the driven shaft in a fixed connection for simultaneous rotation of the drive shaft and the driven shaft; and means for rotating the first axial end of the drive shaft.
Claim 3
Dependent Claim
12 words
The drive apparatus of claim 1 wherein the drive shaft is flexible.
Claim 4
Dependent Claim
25 words
The drive apparatus of claim 2 wherein: the first and second axial ends of the drive shaft are oriented non-co-axially with respect to each other.
Claim 5
Dependent Claim
24 words
The drive apparatus of claim 3 wherein: the first and second axial ends of the drive shaft are oriented substantially perpendicular to each other.
Claim 6
Dependent Claim
60 words
The drive apparatus of claim 1 wherein the rotating means comprises: a drive motor having a rotatable output shaft; and gear means, coupled to and driven by the output shaft of the motor and connected to the first axial end of the drive shaft, for transmitting rotation of the output shaft of the motor to rotation of the drive shaft.
Claim 7
Dependent Claim
31 words
The drive apparatus of claim 1 further comprising: means, adapted to be mounted on the first component, for rotatably housing the fixed connection between the drive shaft and the driven shaft.
Claim 8
Dependent Claim
138 words
A power seat adjuster for a vehicle comprising: first and second track assemblies, each formed of a lower track adapted to be fixed on the vehicle and an upper track slidably mounted in the lower track; drive motor means; a first drive shaft coupled to the drive motor means and rotated by the drive motor means, the first drive shaft having first and second axial end portions and an intermediate portion connecting the first and second axial ends; a first driven shaft; means for co-axially connecting the second axial end of the first drive shaft to the first driven shaft in a fixed connection to transmit rotation of the drive shaft to the driven shaft; and means, responsive to rotation of the driven shaft, for effecting relative movement of the upper track with respect to the lower track.
Claim 9
Dependent Claim
138 words
A power seat adjuster for a vehicle comprising: first and second track assemblies, each formed of a lower track adapted to be fixed on the vehicle and an upper track slidably mounted in the lower track; drive motor means; a first drive shaft coupled to the drive motor means and rotated by the drive motor means, the first drive shaft having first and second axial end portions and an intermediate portion connecting the first and second axial ends; a first driven shaft; means for co-axially connecting the second axial end of the first drive shaft to the first driven shaft in a fixed connection to transmit rotation of the drive shaft to the driven shaft; and means, responsive to rotation of the driven shaft, for effecting relative movement of the upper track with respect to the lower track.
Claim 10
Dependent Claim
26 words
The power seat adjuster of claim 7 wherein: the intermediate portion of the first drive shaft extends through a stationary structure on the power seat adjuster.
Claim 11
Dependent Claim
45 words
The power seat adjuster of claim 7 wherein the drive motor means comprises: a drive motor having a rotatable output shaft; and gear means, coupled to and driven by the output shaft of the motor, for rotating the first axial end of the drive shaft.
Claim 12
Dependent Claim
194 words
The power seat adjuster of claim 7 further comprising: a pivotal seat back arm, movable with respect to a seat support; second drive motor means; a second drive shaft coupled to the second drive motor means and rotated by the second drive motor means, the second drive shaft having first and second axial end portions and an intermediate portion connecting the first and second axial ends; a second driven shaft; means for co-axially connecting the second axial end of the second drive shaft to one end of the second driven shaft in a fixed connection to transmit rotation of the second drive shaft to the second driven shaft; means for rotatably mounting the fixed connection between the first axial end of the second drive shaft and the one end of the second driven shaft to the seat support; a driven member coupled to the pivotal seat back arm and the second driven shaft, the driven member pivoting the seat back arm upon movement of the driven member; and means, connected to the driven member, and engaging the second driven shaft, for transmitting rotation of the second driven shaft to movement of the driven member.
Claim 13
Dependent Claim
31 words
The power seat adjuster of claim 7 further comprising: means, mounted on the upper track, for rotatably housing the fixed connection between the first drive shaft and the first driven shaft.
Claim 14
Dependent Claim
16 words
The power seat adjuster of claim 7 wherein the first drive shaft is a flexible shaft.
Claim 15
Dependent Claim
26 words
The power seat adjuster of claim 12 wherein: the first and second axial ends of the drive shaft are oriented non-co-axially with respect to each other.
Claim 16
Dependent Claim
26 words
The power seat adjuster of claim 13 wherein the first and second axial ends of the first drive shaft are oriented substantially perpendicular to each other.
Claim 17
Dependent Claim
185 words
A power seat adjuster for a vehicle comprising: first and second track assemblies, each formed of a lower track adapted to be fixed on the vehicle and an upper track slidably mounted in the lower track; drive motor means; a first drive shaft coupled to the drive motor means and rotated by the drive motor means, the first drive shaft having first and second axial end portions and an intermediate portion connecting the first and second axial ends; a first driven shaft; means for co-axially connecting the second axial end of the first drive shaft to the first driven shaft in a fixed connection to transmit rotation of the drive shaft to the driven shaft, the means for co-axially connecting including: bracket means fixedly mounted to an upper track; and a housing rotatably receiving a fixed connection between the second axial end of the first drive shaft and one end of the first driven shaft, the housing mounted in the bracket means; and means, responsive to rotation of the driven shaft, for effecting relative movement of the upper track with respect to the lower track.
Claim 18
Dependent Claim
185 words
A power seat adjuster for a vehicle comprising: first and second track assemblies, each formed of a lower track adapted to be fixed on the vehicle and an upper track slidably mounted in the lower track; drive motor means; a first drive shaft coupled to the drive motor means and rotated by the drive motor means, the first drive shaft having first and second axial end portions and an intermediate portion connecting the first and second axial ends; a first driven shaft; means for co-axially connecting the second axial end of the first drive shaft to the first driven shaft in a fixed connection to transmit rotation of the drive shaft to the driven shaft, the means for co-axially connecting including: bracket means fixedly mounted to an upper track; and a housing rotatably receiving a fixed connection between the second axial end of the first drive shaft and one end of the first driven shaft, the housing mounted in the bracket means; and means, responsive to rotation of the driven shaft, for effecting relative movement of the upper track with respect to the lower track.
Claim 19
Dependent Claim
72 words
The power seat adjuster of claim 15 further comprising: a second drive shaft coupled to the drive motor means and having first and second axial end portions interconnected by an intermediate portion; a second driven shaft; and means for co-axially connecting the second axial end of the second drive shaft to the second driven shaft in a fixed connection to transmit rotation of the second drive shaft to the second driven shaft.
Claim 20
Dependent Claim
49 words
The power seat adjuster of claim 16 wherein the drive motor means comprises: a drive motor having a rotatable output shaft; and gear means, driven by the output shaft of the drive motor, for rotating the first axial ends of the first drive shaft and the second drive shaft.
Claim 21
Dependent Claim
70 words
The power seat adjuster of claim 16 wherein the means for co-axially connecting the second axial end of the second drive shaft to the second driven shaft comprises: another bracket means fixedly mounted to another upper track; and another housing rotatably receiving the fixed connection between the second axial end of the second drive shaft to the end of the second driven shaft, the housing mounted in the bracket means.
Claim 22
Dependent Claim
18 words
The power seat adjuster of claim 18 wherein: the first and the second drive shafts are flexible shafts.
Claim 23
Dependent Claim
33 words
The power seat adjuster of claim 19 wherein the first and second axial ends of both of the first drive shaft and the second drive shaft are oriented substantially perpendicular to each other.
Claim 24
Dependent Claim
32 words
The power seat adjuster of claim 20 wherein: the intermediate portion of each of the first drive shaft and the second drive shaft extends through stationary structure on the power seat adjuster.
Claim 25
Dependent Claim
172 words
A seat back recliner for a vehicle having a seat back movable relative to a seat bottom, the seat bottom mounted on first and second track assemblies, each formed of a lower track adapted to be fixed to the vehicle and an upper track movably mounted on the lower track, the seat back recliner comprising: a drive motor means; a first drive shaft coupled to the drive motor means and rotated by the drive motor means, the first drive shaft having first and second axial end portions and an intermediate portion connecting the first and second axial ends; a first driven shaft; means for co-axially connecting the second axial end of the first drive shaft to one end of the first driven shaft in a fixed connection to transmit rotation of the first drive shaft to the driven shaft; and means, adapted to be connected between the driven shaft and the seat back, for translating rotation of the driven shaft to pivotal movement of the seat back relative to the seat bottom.
Claim 26
Dependent Claim
172 words
A seat back recliner for a vehicle having a seat back movable relative to a seat bottom, the seat bottom mounted on first and second track assemblies, each formed of a lower track adapted to be fixed to the vehicle and an upper track movably mounted on the lower track, the seat back recliner comprising: a drive motor means; a first drive shaft coupled to the drive motor means and rotated by the drive motor means, the first drive shaft having first and second axial end portions and an intermediate portion connecting the first and second axial ends; a first driven shaft; means for co-axially connecting the second axial end of the first drive shaft to one end of the first driven shaft in a fixed connection to transmit rotation of the first drive shaft to the driven shaft; and means, adapted to be connected between the driven shaft and the seat back, for translating rotation of the driven shaft to pivotal movement of the seat back relative to the seat bottom.
Claim 27
Dependent Claim
29 words
The seat back recliner of claim 22 wherein: the intermediate portion of the first drive shaft is adapted to extend through one of the first and second track assemblies.
Claim 28
Dependent Claim
45 words
The seat back recliner of claim 22 wherein the drive motor means comprises: a drive motor having a rotatable output shaft; and gear means, coupled to and driven by the output shaft of the motor, for rotating the first axial end of the drive shaft.
Claim 29
Dependent Claim
95 words
The seat back recliner of claim 22 wherein the translating means comprises: means for rotatably mounting the connection between the first axial end of the first drive shaft and the one end of the driven shaft to one of the first and second track assemblies; a driven member adapted to be pivotally coupled to the seat back, the driven member pivoting the seat back upon translation of the driven member; and means, connected to the driven member and engaging the driven shaft, for transmitting rotation of the driven shaft to translation of the driven member.
Claim 30
Dependent Claim
39 words
The seat back recliner of claim 22 further comprising: means, adapted to be mounted on one of the first and second track assemblies, for rotatably housing the fixed connection between the first drive shaft and the first driven shaft.
Claim 31
Dependent Claim
16 words
The seat back recliner of claim 22 wherein the first drive shaft is a flexible shaft.
Claim 32
Dependent Claim
27 words
The seat back recliner of claim 27 wherein: the first and second axial ends of the first drive shaft are oriented non-co-axially with respect to each other.
Claim 33
Dependent Claim
26 words
The seat back recliner of claim 28 wherein the first and second axial ends of the first drive shaft are oriented substantially perpendicular to each other.
Claim 34
Dependent Claim
226 words
A seat back recliner for a vehicle having a seat back movable relative to a seat bottom, the seat bottom mounted on first and second track assemblies, each formed of a lower track adapted to be fixed to the vehicle and an upper track movably mounted on the lower track, the seat back recliner comprising: a drive motor means; a first drive shaft coupled to the drive motor means and rotated by the drive motor means, the first drive shaft having first and second axial end portions and an intermediate portion connecting the first and second axial ends; a first driven shaft; means for co-axially connecting the second axial end of the first drive shaft to one end of the first driven shaft in a fixed connection to transmit rotation of the first drive shaft to the driven shaft, the means for co-axially connecting including: bracket means adapted to be fixedly mounted to one of the first and second track assemblies; and a housing receiving a fixed connection between the second axial end of the first drive shaft and one end of the first driven shaft, the housing mounted in the bracket means; and means, adapted to be connected between the driven shaft and the seat back, for translating rotation of the driven shaft to pivotal movement of the seat back relative to the seat bottom.
Claim 35
Dependent Claim
226 words
A seat back recliner for a vehicle having a seat back movable relative to a seat bottom, the seat bottom mounted on first and second track assemblies, each formed of a lower track adapted to be fixed to the vehicle and an upper track movably mounted on the lower track, the seat back recliner comprising: a drive motor means; a first drive shaft coupled to the drive motor means and rotated by the drive motor means, the first drive shaft having first and second axial end portions and an intermediate portion connecting the first and second axial ends; a first driven shaft; means for co-axially connecting the second axial end of the first drive shaft to one end of the first driven shaft in a fixed connection to transmit rotation of the first drive shaft to the driven shaft, the means for co-axially connecting including: bracket means adapted to be fixedly mounted to one of the first and second track assemblies; and a housing receiving a fixed connection between the second axial end of the first drive shaft and one end of the first driven shaft, the housing mounted in the bracket means; and means, adapted to be connected between the driven shaft and the seat back, for translating rotation of the driven shaft to pivotal movement of the seat back relative to the seat bottom.
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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) | 1999-11-19 | 2000-05-20 | 2000-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-19 | 2004-05-20 | 2004-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-19 | 2008-05-20 | 2008-11-19 | $7700.00 | Window Closed / Lapsed |