US5320409A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat apparatus for vehicle
Assignee: Nissan Motor Co Ltd
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Filing: 1991-11-06
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Granted: 1994-06-14
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Expires: 2011-11-06
Abstract
Abstract A seat apparatus for a vehicle includes a seat which is composed of a seat cushion and a seat back. A plurality of actuators are provided in the seat, for altering a bearing-surface configuration of the seat. The actuators are driven by an air compressor which is controlled by a controller in a predetermined pattern. The controller judges oscillation transmitted to a passenger seated on the seat, on the basis of a signal from an acceleration sensor, and regulates the predetermined pattern of the control, in accordance with the judged oscillation. The controller may be so arranged as to judge the oscillation transmitted to the passenger, on the basis of signals from a speed sensor and a road-surface-condition detecting sensor.
Inventors
- 👤 Kazuhito Katoh
- 👤 Hideyuki Nagashima
- 👤 Yoichi Kishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:05
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/02; B60N2/0224; B60N2/0244; B60N2/02246; B60N2/90; B60N2/914; Y; Y10; Y10S; Y10S297/00; Y10S297/03
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
177 words
A seat apparatus for a vehicle, comprising: a seat having a seat cushion and a seat back; at least one actuator for altering a bearing surface configuration of said seat situated within said seat cushion and said seat back; driving means for driving said actuator; vibration sensor means within the vehicle for measuring vibration transmitted to an occupant, which outputs a measured value of the vibration; judging means having a frequency filter means for filtering at least one frequency band connected to said sensor means to count the number of vibrations exceeding a predetermined level of strength or amplitude prescribed for said at least one frequency band; regulating means for regulating a predetermined pattern to control said drive means, in accordance with said number of vibrations transmitted to the occupant, said predetermined pattern being previously determined with investigating frequency components of the vibration which are apt to fatigue the occupant and parts of the human body with said frequency components; and controlling means for controlling said drive means in said predetermined pattern regulated by said regulating means.
Claim 2
Dependent Claim
177 words
A seat apparatus for a vehicle, comprising: a seat having a seat cushion and a seat back; at least one actuator for altering a bearing surface configuration of said seat situated within said seat cushion and said seat back; driving means for driving said actuator; vibration sensor means within the vehicle for measuring vibration transmitted to an occupant, which outputs a measured value of the vibration; judging means having a frequency filter means for filtering at least one frequency band connected to said sensor means to count the number of vibrations exceeding a predetermined level of strength or amplitude prescribed for said at least one frequency band; regulating means for regulating a predetermined pattern to control said drive means, in accordance with said number of vibrations transmitted to the occupant, said predetermined pattern being previously determined with investigating frequency components of the vibration which are apt to fatigue the occupant and parts of the human body with said frequency components; and controlling means for controlling said drive means in said predetermined pattern regulated by said regulating means.
Claim 3
Dependent Claim
29 words
A seat apparatus according to claim 1, wherein said frequency filter lowers the predetermined level of frequency when the frequency components which tend to tire the passenger is greater.
Claim 4
Dependent Claim
18 words
A seat apparatus according to claim 1, wherein said vibration sensor means is situated within said seat cushion.
Claim 5
Dependent Claim
181 words
A seat apparatus for a vehicle, comprising: a seat having a seat cushion and a seat back; a plurality of actuators for altering a bearing surface configuration of said seat situated within said seat cushion and said seat back; driving means for driving said actuators; an acceleration sensor means within the vehicle for measuring vibration transmitted to an occupant, which outputs a measured value of the vibration; judging means having a frequency filter means for filtering a plurality of frequency bands connected to said sensor means to count, in each of said frequency bands, the number of vibrations exceeding a predetermined level of strength or amplitude prescribed for each frequency band; regulating means for regulating a predetermined pattern to control said drive means, in accordance with said number of vibrations transmitted to the occupant, said predetermined pattern being previously determined with investigating frequency components of the vibration which are apt to fatigue the occupant and parts of the human body with said frequency components; and controlling means for controlling said drive means in said predetermined pattern regulated by said regulating means.
Claim 6
Dependent Claim
181 words
A seat apparatus for a vehicle, comprising: a seat having a seat cushion and a seat back; a plurality of actuators for altering a bearing surface configuration of said seat situated within said seat cushion and said seat back; driving means for driving said actuators; an acceleration sensor means within the vehicle for measuring vibration transmitted to an occupant, which outputs a measured value of the vibration; judging means having a frequency filter means for filtering a plurality of frequency bands connected to said sensor means to count, in each of said frequency bands, the number of vibrations exceeding a predetermined level of strength or amplitude prescribed for each frequency band; regulating means for regulating a predetermined pattern to control said drive means, in accordance with said number of vibrations transmitted to the occupant, said predetermined pattern being previously determined with investigating frequency components of the vibration which are apt to fatigue the occupant and parts of the human body with said frequency components; and controlling means for controlling said drive means in said predetermined pattern regulated by said regulating means.
Claim 7
Dependent Claim
18 words
A seat apparatus according to claim 4, wherein said acceleration sensor means is situated within said seat cushion.
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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) | 1997-06-13 | 1997-12-13 | 1998-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-06-13 | 2001-12-13 | 2002-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-06-13 | 2005-12-13 | 2006-06-14 | $7700.00 | Window Closed / Lapsed |