JP2023073518A5

JP2023073518A5 -

Info

Publication number: JP2023073518A5
Application number: JP2023060251A
Authority: JP
Filing date: 2023-04-03
Publication date: 2023-10-05

Claims

A vehicle seat having a seat cushion and a seat back,
a plate-shaped support plate;
a pad member placed on the front side of the support plate ;
a linear soft actuator provided along a support surface of the pad member that supports a load from an occupant;
a control device that drives the soft actuator;
The soft actuator passes through the left and right sides of the pad member, reaches between the support plate and the pad member, and is fixed to the support plate at an end.

a skin material covering the pad member;
The vehicle seat according to claim 1, further comprising an actuator seat disposed between the skin material and the pad member and configured by a plurality of the soft actuators.

A plurality of sheet connectors are provided at the edge of the actuator sheet,
the soft actuator is coupled to the seat connector at both ends;
3. The vehicle seat according to claim 2, wherein the soft actuator is fixed to the support plate at an end by fixing the seat connector to the support plate.

comprising a skin material covering the pad member,
2. The vehicle seat according to claim 1, wherein the skin material is constructed by weaving a plurality of the linear soft actuators.

a pressure sensor sheet including a detection surface arranged to overlap the support surface;
The detection surface of the pressure sensor sheet is provided with a plurality of pressure sensors that detect pressure,
The vehicle according to claim 1, wherein the control device calculates a pressure distribution applied to the detection surface based on the output of the pressure sensor, and drives the soft actuator based on the calculated pressure distribution. Sheet for use.

The control device calculates an average value of pressure applied to each of a plurality of regions into which the detection surface is divided, and an average value of pressure applied to the entire detection surface, and calculates the average value of the pressure of each of the calculated regions. and the average value of the pressure applied to the entire detection surface, and based on the difference calculated for each region, the soft actuator vertically overlaps the corresponding region. The vehicle seat according to claim 5, wherein the vehicle seat is driven by a.

When the control device detects that the average value of the pressure in the region is larger than the average value of the pressure applied to the entire detection surface, the control device extends the soft actuator that overlaps the region in proportion to the difference. 6. The vehicle seat described in 6.

When the control device detects that the average value of the pressure in the region is smaller than the average value of the pressure applied to the entire detection surface, the control device reduces the soft actuator that overlaps the region in proportion to the difference. The vehicle seat according to claim 6 or claim 7.

The soft actuator has electrical characteristics changed by pressure from the occupant,
The vehicle seat according to claim 1, wherein the control device controls driving of the soft actuator based on electrical characteristics of the soft actuator.

The control device calculates the pressure in a region corresponding to the soft actuator based on the electrical characteristics of the soft actuator, and calculates the difference between the pressure in the region and the average value of the pressure applied to the entire support surface. The vehicle seat according to claim 9, wherein the soft actuator located in the area is driven based on.

11. The control device extends the soft actuator corresponding to the region in proportion to the difference when detecting that the pressure in the region is larger than the average value of the pressure applied to the entire support surface. Vehicle seat as described.

When the control device detects that the average value of the pressure in the region is smaller than the average value of the pressure applied to the entire support surface, the control device reduces the soft actuator corresponding to the region in proportion to the difference. The vehicle seat according to claim 10 or 11.

Some of the plurality of soft actuators constitute a lateral soft actuator group extending in the width direction of the pad member,
The vehicle according to any one of claims 1 to 12, wherein the vehicle has a warp thread group extending in a direction perpendicular to the width direction, and wherein the weft soft actuator group and the warp thread group are interwoven with each other. Sheet for use.

Some of the plurality of soft actuators constitute a lateral soft actuator group extending in the width direction of the pad member,
Some other of the plurality of soft actuators constitute a group of vertical soft actuators extending in a direction perpendicular to the width direction,
The vehicle seat according to any one of claims 1 to 12, wherein the soft actuators forming the horizontal soft actuator group and the soft actuators forming the vertical soft actuator group are interwoven with each other. .

The seat cushion is attached to a frame provided on the floor,
The seat back is disposed above the rear part of the seat cushion and supports the back of the occupant from the rear,
The vehicle seat according to any one of claims 1 to 14, wherein a headrest is provided at an upper portion of the seat back.