Seat with fatigue lessening device
First Claim
Patent Images
1. A seat control system comprising:
- a seat with an occupant holding portion;
shape changing means located in said seat for changing the shape of said occupant holding portion;
detecting means located in said seat for detecting and counting a movement made by an occupant of said seat relative to said seat; and
control means connected to said detecting means and said shape changing means for controlling said shape changing means in accordance with a predetermined number of movements detected by said detecting means.
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Accused Products
Abstract
A seat having a fatigue lessening device functions to repeatedly expand and contract a given part of a seat occupant holding portion of the seat. A fatigue sensor is employed which issues an information signal representative of the fatigue of the occupant. A computer controls the operation of the device at intervals which are derived from the information signal. The fatigue sensor counts the number of movement of the seat occupant and uses the counted number as the factor for representing the degree of the occupant'"'"'s fatigue.
132 Citations
13 Claims
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1. A seat control system comprising:
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a seat with an occupant holding portion; shape changing means located in said seat for changing the shape of said occupant holding portion; detecting means located in said seat for detecting and counting a movement made by an occupant of said seat relative to said seat; and control means connected to said detecting means and said shape changing means for controlling said shape changing means in accordance with a predetermined number of movements detected by said detecting means.
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2. A seat control system comprising:
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a seat with an occupant holding portion; first means located in said seat for changing the shape of said occupant holding portion; second means connected to said first means for controlling said first means at given intervals; third means located in said seat for issuing an information signal representative of a movement and the number of movements made by an occupant of said seat relative to said seat; and fourth means connected to said first, second, and third means for determining said given intervals in accordance with an information signal provided by said third means, which represents a predetermined number of movements made by said occupant to control said second means to change the shape of said first means. - View Dependent Claims (3, 4)
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5. A seat control system comprising:
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a seat with an occupant holding portion; shape changing means located in said seat for changing the shape of said occupant holding portion; detecting means located in said seat for detecting and counting a movement made by an occupant of said seat relative to said seat; and control means connected to said detecting means and said shape changing means for controlling said shape changing means in accordance with a predetermined number of movements detected by said detecting means, wherein the count is reset to zero after said predetermined number of movements has been detected or after a predetermined interval.
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6. A seat control system comprising:
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a seat with an occupant holding portion; first means located in said seat for changing the shape said occupant holding portion; second means connected to said first means for controlling said first means at given intervals; third means located in said seat for issuing an information signal representative of a movement and the number of movements made by an occupant of said seat relative to said seat; and fourth means connected to said first, second, and third means for determining said given intervals in accordance with an information signal provided by said third means, which represents a predetermined number of movements made by said occupant to control said second means to change the shape of said first means, wherein said third means is reset so that the information signal represents zero movement after said predetermined number of movements has reached or after a predetermined interval.
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7. A seat control system comprising:
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a seat with an occupant holding portion; first means located in said seat for changing the shape of said occupant holding portion, said first means including an air-pump, a plurality of air-bags installed in given portions of said seat, a plurality of pipes connecting the respective air-bags to an outlet of said air-pump, and electromagnetic valves mounted to the respective pipes to selectively open an close the same; second means connected to said first means for controlling said electromagnetic valves at given intervals; third means located in said seat for issuing an information signal representative of a movement and the number of movements made by an occupant of said seat relative to said seat, said third means including a pressure sensor which is installed on a seatback portion of said seat at the position where the lumbar part of the occupant is to be placed, said pressure sensor detecting whether the occupant has moved by comparing the pressure detected with a predetermined comparison pressure; and fourth means connected to said first, second, and third means for determining said given intervals in accordance with the information signal provided by said pressure sensor, which represents a predetermined number of movements made by said occupant to control said second means to change the shape of said first means, wherein said second and fourth means are incorporated with a computer. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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Specification