JP2019166875A - Seat device - Google Patents

Abstract

To provide a constitution that facilitates making a partial change to the tension of a seat.SOLUTION: A plurality of pads are arranged in a matrix with a first number in the longitudinal direction and a second number in the lateral direction on the front side of a seat back of a seat and/or the upper surface side of a seat cushion. Adjustment of tension of the first number of first wires for moving the plurality of pads coordinately in units of rows arranged in the lateral direction is made by a first driving part. Adjustment of tension of the second number of second wires for moving the plurality of pads coordinately in units of columns arranged in the longitudinal direction is made by a second driving part. Adjustment of tension of third wires of a third number equal to (being the product of the first number and the second number) as the number of pads for respectively moving the plurality of pads to the side for recessing the seat back and/or the seat cushion is made by a third driving part.SELECTED DRAWING: Figure 1

Description

  The present disclosure relates to a seat apparatus.

  Conventionally, as this type of sheet apparatus, a sheet-shaped three-dimensional knitted fabric is used as a base material, and includes a sheet having an air cushion that expands into a bag shape by enclosing air. Has been proposed that has a bag part that is overlapped and joined in a bag shape, and a close contact part that is bonded to each other so as to partition these bag parts (for example, Patent Documents) 1). In this way, in this seat device, a partially uneven shape or a bent expanded shape can be formed on the air cushion.

JP 2012-106600 A

  In the above-described seat device, since an air cushion is used, the time required for changing the tension (hardness) of the seat may be relatively long. On the other hand, when it is inflated with gunpowder like an airbag, the time required for changing the tension of the sheet can be shortened, but once it is inflated, subsequent reinflation is difficult. Therefore, there is a demand for a configuration that can easily change the tension of the sheet partially.

  The main object of the sheet device of the present disclosure is to provide a configuration in which a partial change in the tension of the sheet can be easily performed.

  The seat device of the present disclosure employs the following means in order to achieve the main object described above.

The seat device of the present disclosure is:
A seat device comprising a seat mounted on a vehicle and having a seat back and a seat cushion,
A plurality of pads arranged in a matrix of a first number in the vertical direction and a second number in the horizontal direction on the front side of the seat back and / or the upper side of the seat cushion;
The first number of first wires for interlockingly moving the plurality of pads in units of rows arranged in the lateral direction;
The second number of second wires for interlockingly moving the plurality of pads in units of rows arranged in the vertical direction;
A third number of third wires equal to the number of pads for moving the plurality of pads to the side where the seat back and / or the seat cushion is recessed,
A first drive for adjusting the tension of the first number of first wires;
A second drive unit for adjusting the tension of the second number of second wires;
A third driving unit for adjusting the tension of the third number of third wires;
It is a summary to provide.

  In the seat device according to the present disclosure, a plurality of pads are arranged in a matrix having a first number in the vertical direction and a second number in the horizontal direction on the front surface side of the seat back and / or the upper surface side of the seat cushion. . Then, the first driving unit adjusts the tension of the first number of first wires for interlockingly moving the plurality of pads in units of rows arranged in the horizontal direction, and sets the plurality of pads in units of columns arranged in the vertical direction. The number of pads for moving the plurality of pads to the side on which the seat back and / or the seat cushion is recessed is adjusted by the second drive unit by adjusting the tension of the second number of second wires for moving in conjunction with each other. The third drive unit adjusts the tension of the third number of third wires, which is the same number (the product of the first number and the second number). In this way, by adjusting the tension of the first number of first wires, the second number of second wires, and the third number of third wires, partial adjustment on the front side of the seat back and the upper side of the seat cushion is performed. The tension can be easily changed.

It is a block diagram which shows the outline of a structure of the sheet | seat apparatus 20 of this indication. It is a block diagram which shows the outline of a structure of the sheet | seat apparatus 20 of this indication. It is a block diagram which shows the outline of a structure of the pad 26a. FIG. 3 is a configuration diagram showing an outline of the configuration of a drive unit 40. 4 is a flowchart showing an example of a processing routine executed by a body ECU 80. 4 is a flowchart showing an example of a processing routine executed by a body ECU 80.

  Next, embodiments for carrying out the invention of the present disclosure will be described with reference to the drawings.

  1 and 2 are configuration diagrams showing an outline of the configuration of the seat device 20 of the present disclosure, FIG. 3 is a configuration diagram showing an outline of the configuration of the pad 26a, and FIG. 4 is a configuration of the drive unit 40. It is a block diagram which shows the outline of this.

  The seat device 20 of the present disclosure is mounted on a vehicle and includes a seat 22 having a seat back 23 and a seat cushion 24 as shown in FIG. The seat back 23 includes a seat frame, a cushion spring, a cushion pad, nine pads 26a to 26i, and a seat cover, and the seat cushion 24 includes a frame member, a cushion spring, a cushion pad, and a seat cover. The seat back 23 has a known configuration except for the nine pads 26a to 26i, and the seat cushion 24 has a known configuration. As shown in FIGS. 1 and 2, the sheet device 20 includes three wires 30 a to 30 c, three wires 32 a to 32 c, nine wires 34 a to 34 i, and three driving units in addition to the sheet 22. 40, 50, 60, an actuator electronic control unit (hereinafter referred to as “actuator ECU”) 70, and a body electronic control unit (hereinafter referred to as “body ECU”) 80.

  As shown in FIG. 1, the nine pads 26a to 26i have three longitudinal directions (up and down direction of the seat back 23) on the front side of the seat back 23 (for example, between the cushion pad and the seat cover), and The horizontal direction (the left-right direction of the seat back 23) is arranged in three matrix shapes. Each of the pads 26a to 26i is formed in a disc shape having a predetermined thickness by, for example, plastic (resin), and one surface is a seat cover side (side receiving pressure from an occupant or the like) and the other surface is a cushion pad side. It arrange | positions so that it may become. As shown in FIG. 3, the side portion of the pad 26 a has a through hole 27 that penetrates the pad 26 a in the extending direction and a pad 26 a that extends in the extending direction and perpendicular to the through hole 27. A through hole 28 is formed. A wire 30a is inserted through the through hole 27 of the pad 26a, and a wire 32a is inserted through the through hole 28. A wire 34a is attached to the lower surface (cushion pad side) in FIG. 3 of the pad 26a, and a pressure sensor 29a for detecting pressure received from an occupant or the like is disposed on the upper surface (seat cover side) in FIG. It is attached. The pads 26b to 26i are formed in the same manner as the pad 26a. Wires 30a and 32b are inserted into the pad 26b, and a wire 34b and a pressure sensor 29b are attached. Wires 30a and 32c are inserted into the pad 26c, and a wire 34c and a pressure sensor 29c are attached. Wires 30b and 32a are inserted into the pad 26d, and a wire 34d and a pressure sensor 29d are attached. Wires 30b and 32b are inserted into the pad 26e, and a wire 34e and a pressure sensor 29e are attached. Wires 30b and 32c are inserted into the pad 26f, and a wire 34f and a pressure sensor 29f are attached. Wires 30c and 32a are inserted into the pad 26g, and a wire 34g and a pressure sensor 29g are attached. Wires 30c and 32b are inserted into the pad 26h, and a wire 34h and a pressure sensor 29h are attached. Wires 30c and 32c are inserted into the pad 26i, and a wire 34i and a pressure sensor 29i are attached.

  As shown in FIGS. 1 to 3, the wire 30a is inserted into the three pads 26a, 26b, and 26c, the wire 30b is inserted into the three pads 26d, 26e, and 26f, and the wire 30c is inserted into the three pads 26g. , 26h, 26i. One end of each of the three wires 30 a to 30 c is attached to the right end portion of the seat back 23 (for example, the right end portion of the cushion pad), and the other end is connected to the drive unit 40. Accordingly, the three wires 30a to 30c can move the nine pads 26 in a row unit aligned in the lateral direction of the seat back. The wire 32a is inserted through the three pads 26a, 26d, and 26g, the wire 32b is inserted through the three pads 26b, 26e, and 26h, and the wire 32c is inserted through the three pads 26c, 26f, and 26i. One end of each of the three wires 32 a to 32 c is attached to the upper end portion (for example, the upper end portion of the cushion pad) of the seat back 23, and the other end is connected to the drive unit 50. Accordingly, the three wires 32a to 32c can move the nine pads 26 in an interlocked manner in units of rows arranged in the longitudinal direction of the seat back. The nine wires 34 a to 34 i have one end attached to the nine pads 26 a to 26 i and the other end connected to the drive unit 60. Therefore, the nine wires 34a to 34i can move the nine pads 26a to 26i to the side where the seat back 23 is recessed, respectively.

  As shown in FIGS. 2 and 4, the drive unit 40 includes a motor 42, and a selector unit 45 that connects and disconnects the motor 42 and each of the three wires 30 a to 30 c. The selector unit 45 is provided with three cylindrical wires 46a to 46c to which three wires 30a to 30c are respectively attached and movable in the axial direction of the motor 42 (left and right direction in FIG. 4), and cylindrical portions 46a to 46c. Actuators 48a to 48c for moving 46c. Actuators 48a-48c are controlled by actuator ECU70. Fitting portions 47a to 47c that can be fitted to fitting portions 44a to 44c provided on the rotating shaft 43 of the motor 42 are formed on the inner peripheral side of the cylindrical portions 46a to 46c, and actuators 48a to 48c. The fitting portions 44a to 44c and the fitting portions 47a to 47c are fitted and unfitted by the movement of the cylindrical portions 46a to 46c by the driving of.

  As shown in FIG. 2, like the drive unit 40, the drive unit 50 includes a motor 52, and a selector unit 55 that connects and disconnects the motor 52 and each of the three wires 32 a to 32 c. Prepare. The selector unit 55 is provided with three cylindrical wires 56a to 56c to which the three wires 32a to 32c are respectively attached and movable in the axial direction of the motor 52, and an actuator for moving the cylindrical members 56a to 56c. (Not shown). The actuator is controlled by the actuator ECU 70. On the inner peripheral side of the cylindrical portions 56a to 56c, fitting portions 57a to 57c that can be fitted to the fitting portions 54a to 54c provided on the rotating shaft 53 of the motor 52 are formed. By the movement of the cylindrical portions 56a to 56c, the fitting portions 54a to 54c and the fitting portions 57a to 57c are fitted and released.

  Similarly to the drive units 40 and 50, the drive unit 60 includes a motor 62, and a selector unit 65 that connects and disconnects the motor 62 and each of the nine wires 34a to 34i. The selector unit 65 includes nine cylindrical wires 66a to 66i to which nine wires 34a to 34i are attached and movable in the axial direction of the motor 62, and an actuator for moving the cylindrical portions 66a to 66i. (Not shown). Fitting portions 67a to 67i that can be fitted to fitting portions 64a to 64i provided on the rotating shaft 63 of the motor 62 are formed on the inner peripheral side of the cylindrical portions 66a to 66i. By the movement of the tubular portions 66a to 66i, the fitting portions 64a to 64i and the fitting portions 67a to 67i are fitted and released.

  As shown in FIG. 2, the actuator ECU 70 is configured as a microprocessor centered on a CPU (not shown). In addition to the CPU, a ROM that stores a processing program, a RAM that temporarily stores data, I / O port and communication port are provided. The actuator ECU 70 receives the acceleration of the seat 22 from an acceleration sensor (G sensor) 72 that detects the acceleration of the seat 22 (acceleration of the vehicle) through an input port. The actuator ECU 70 outputs control signals and the like to the motors 42, 52, 62 and the selector units 45, 55, 65 (actuators 48a to 48c, etc.) via the output port. The actuator ECU 70 is communicably connected to the body ECU 80 via a communication port.

  Although not shown, the body ECU 80 is configured as a microprocessor centered on a CPU. In addition to the CPU, the body ECU 80 includes a ROM that stores processing programs, a RAM that temporarily stores data, an input / output port, and a communication port. Prepare. The body ECU 80 receives pressures Pa to Pi received from occupants and the like from the nine pressure sensors 29a to 29i through an input port. The body ECU 80 includes an actuator ECU 70, an airbag electronic control unit (hereinafter referred to as “airbag ECU”) 90 that controls an airbag as an occupant protection device that protects the occupant, a navigation device 92 that provides route guidance, and a communication port. It is connected so that it can communicate via. In addition, when the destination is set by the user, the navigation device 92 searches for a planned travel route from the current location to the destination based on the map information and the current location and destination of the vehicle from the GPS sensor and the like. Route guidance is performed by displaying the planned travel route on the display. In the map information, service information (for example, sightseeing information, parking lots, etc.) and road information for each predetermined travel section (for example, between traffic lights and intersections) are stored in a database. The road information includes distance information, width information, lane number information, area information (city area, suburb), type information (general road, highway), gradient information, legal speed, number of traffic lights, and the like.

  Next, the operation of the sheet apparatus 20 configured in this way will be described. FIG. 5 is a flowchart illustrating an example of a processing routine executed by the body ECU 80. This routine is executed repeatedly.

  When the processing routine of FIG. 5 is executed, the body ECU 80 acquires road information in the traveling direction of the vehicle by communication with the navigation device 92 (step S100), and based on the acquired road information, the front surface of the seat back 23 is obtained. It is determined whether or not the vehicle has approached an execution required area that requires execution of seat control to adjust the side tension (hardness) (change from the default) (steps S110 and S112). In the embodiment, corners and steps are considered as areas where sheet control is necessary. Further, the processing of steps S110 and S112 is determined based on, for example, whether or not the vehicle has passed a predetermined distance (for example, about several meters to several tens of meters) from the start point of the area where the seat control is necessary. Can do.

  When it is determined in steps S110 and S112 that the vehicle is not approaching the area required for seat control, a default is set for the target tension at each position on the front side of the seat back 23 (step S120), and the set seat back 23 is set. Based on the target tension at each position on the front side of the actuator, drive commands for the three drive units 40, 50, 60 (three motors 42, 52, 62 and three selector units 45, 55, 65) are set, and the actuator ECU 70 (Step S130), and this routine is terminated.

  As the drive commands for the three drive units 40, 50, 60, for example, the rotation amount commands N1, N2, N3 of the three motors 42, 52, 62, the state of the selector unit 45 (the rotation shaft 43 and the cylinder of the motor 42) Command of presence / absence of fitting with each of the like portions 46a to 46c), command of the state of the selector portion 55 (presence / absence of fitting of the rotating shaft 53 of the motor 52 and each of the cylindrical portions 56a to 56c), and the selector portion. 65 state command (presence / absence of fitting between the rotating shaft 63 of the motor 62 and each of the cylindrical portions 66a to 66i) can be considered. The actuator ECU 70 controls the three drive units 40, 50, 60 based on the drive commands of the three drive units 40, 50, 60, thereby causing the three wires 30 a to 30 c and the three wires 32 a to 32 c, The tension of the nine wires 34a to 34i is adjusted, and the tension of the entire front side of the seat back 23 is adjusted to the default.

  When it is determined in steps S110 and S112 that the vehicle has approached the area required for seat control, it is determined whether the area required for execution is a right corner, a left corner, or a step (steps S140 and S150). When it is determined that the necessary execution area is the right corner, the target tension on the left side of the front side of the seat back 23 is set to a stronger tension than the default, and the default is set to the target tension other than the left side on the front side ( Step S180), based on the set target tension at each position on the front side of the seat back 23, drive commands for the three drive units 40, 50, 60 are set and transmitted to the actuator ECU 70 (step S190).

  The actuator ECU 70 controls the three drive units 40, 50, 60 based on the drive commands of the three drive units 40, 50, 60, thereby causing the three wires 30 a to 30 c and the three wires 32 a to 32 c, The tension of the nine wires 34a to 34i is adjusted, and the tension on the left side on the front side of the seat back 23 is made stronger than the default. When turning right, the left lateral G acts on the occupant. By increasing the tension on the front left side of the seat back 23 relative to the default, the lateral G is received to provide comfort to the occupant. can do.

  Then, similarly to the process of step S100, road information in the traveling direction of the vehicle is acquired (step S220), and based on the acquired road information, whether or not the vehicle has passed the end point of the area requiring execution of seat control. Is determined (steps S230 and S232), and when the vehicle has not passed the end point of the area requiring execution of seat control, the process returns to step S220. In this way, the routine is finished after waiting for the vehicle to pass the end point of the seat control execution area.

  When it is determined in steps S140 and S150 that the necessary execution area is the left corner, the target tension on the right side on the front side of the seat back 23 is set stronger than the default, and the target tension other than the right side on the front side is set. A default is set (step S180), drive commands for the three drive units 40, 50, 60 are set based on the set target tensions at the respective positions on the front side of the seat back 23, and are transmitted to the actuator ECU 70 (step S190). ).

  The actuator ECU 70 controls the three drive units 40, 50, 60 based on the drive commands of the three drive units 40, 50, 60, thereby causing the three wires 30 a to 30 c and the three wires 32 a to 32 c, The tension of the nine wires 34a to 34i is adjusted, and the tension on the right side on the front side of the seat back 23 is made stronger than the default. When turning left, a rightward lateral G acts on the occupant. Therefore, by increasing the tension on the right side of the front surface of the seat back 23 relative to the default, the lateral G is received to provide comfort to the occupant. be able to. And the process after the above-mentioned step S220 is performed.

  When it is determined in steps S140 and S150 that the necessary execution area is a step, the target tension at each position on the front side of the seat back 23 is set to a weaker tension than the default (step S200). Based on the target tension at each position on the front side, drive commands for the three drive units 40, 50, 60 are set and transmitted to the actuator ECU 70 (step S210).

  The actuator ECU 70 controls the three drive units 40, 50, 60 based on the drive commands of the three drive units 40, 50, 60, thereby causing the three wires 30 a to 30 c and the three wires 32 a to 32 c, The tension of the nine wires 34a to 34i is adjusted, and the tension on the entire front side of the seat back 23 is made weaker than the default. Since the front and rear G can act on the occupant when traveling on a step, the impact when the occupant is pressed against the seat back 23 by making the tension on the entire front side of the seat back 23 weaker than the default. Can be absorbed to suppress the subsequent occupant's turning back and provide comfort to the occupant. And the process after the above-mentioned step S220 is performed.

  In the above-described embodiment, the body ECU 80 repeatedly executes the processing routine of FIG. 5, but may execute the processing routine of FIG. 6 when a vehicle collision is detected. The vehicle collision is detected when, for example, the acceleration of the seat 22 detected by the acceleration sensor 72 exceeds a collision determination threshold.

  When the processing routine of FIG. 6 is executed, the body ECU 80 waits for the airbag operation information indicating that the airbag has been activated to be input from the airbag ECU 90 by communication (step S300), and then the direction of vehicle shaking The target tension at each position on the front side of the seat bag 23 is set based on (step S310), and the three drive units 40, 50, 60 ( The drive commands for the three motors 42, 52, 62 and the three selector units 45, 55, 65) are set (step S320).

  Here, for example, the shaking direction of the vehicle is specified by a detection value obtained by using a sensor capable of detecting the acceleration and acceleration direction of the seat 22 as the acceleration sensor 72, or a plurality of acceleration sensors (acceleration sensors 72 are provided in the vehicle). Can be estimated based on the detection values of the plurality of acceleration sensors. The target tension at each position on the front side of the seat bag 23 is set so that the tension on the entire front side of the seat back 23 is weaker than the default in the case of a frontal collision or a rear collision, and in the case of a right side collision, for example. The front left side tension of the seat back 23 is set so as to be weaker than the default, and in the case of a left side collision, the front left side tension of the seat back 23 is set so as to be weaker than the default. The

  When the drive commands for the three drive units are set in this way, it waits for detection of the occupant's seating (increase in pressure on the seat back 23) (step S330). The detection of the seating of the occupant is, for example, when at least one of the pressures Pa to Pi from the pressure sensors 29a to 29i exceeds a threshold value Pref, or at least of the increase amount per unit time of the pressures Pa to Pi. This is done when one exceeds the threshold ΔPref.

  When seating is detected in step S330, drive commands for the three drive units 40, 50, 60 are transmitted to the actuator ECU 70 (step S340), and this routine is terminated. The actuator ECU 70 controls the three drive units 40, 50, 60 based on the drive commands of the three drive units 40, 50, 60, thereby causing the three wires 30 a to 30 c and the three wires 32 a to 32 c, The tension of the nine wires 34a to 34i is adjusted, and the tension at each position on the front side of the seat back 23 is set to the target tension (the whole or part of the tension on the front side of the seat back 23 is made weaker than the default). ). Thereby, the impact when the occupant is pressed against the seat back 23 can be absorbed, and the subsequent occupant can be prevented from turning back, and the occupant can be more fully protected. And since the target tension | tensile_strength of each position of the front side of the seat back 23 is set based on a collision form, a passenger | crew can be protected more appropriately according to a collision form.

  In the above-described embodiment, the drive unit 40 includes the motor 42 and the selector unit 45 that connects and disconnects the motor 42 and each of the three wires 30a to 30c. Three motors connected to each of the wires 30a to 30c may be provided. Similarly, the drive unit 50 includes the motor 52 and the selector unit 55 that connects and disconnects the motor 52 and each of the three wires 32a to 32c. It is good also as a thing provided with the three motors connected to each of 32c. In addition, the drive unit 60 includes the motor 62 and the selector unit 65 that connects and disconnects the motor 62 and each of the nine wires 34a to 34i. However, the nine wires 34a to 34i are included. It is good also as a thing provided with nine motors connected to each.

  In the above-described embodiment, the nine pads 26a to 26i are arranged in a matrix of three in the vertical direction and three in the horizontal direction on the front side of the seat back 23. It is not limited to this as long as it is arranged in a matrix on the front side. That is, the number of vertical and horizontal pads is not limited to three, but may be two, four, five, or the like.

  In the above-described embodiment, the nine pads 26a to 26i are arranged in a matrix on the front side of the seat back 23. Instead of or in addition to this, a plurality of pads are provided on the upper side of the seat cushion 24. It may be arranged. In this case, the three wires 30a to 30c, the three wires 32a to 32c, the three wires 34a to 34i, and the three driving units 40, 50, and 60 are arranged on the upper surface side of the seat back 24. A first number of first wires for interlockingly moving a plurality of pads in units of rows aligned in the horizontal direction, and a second number of first wires for interlockingly moving the plurality of pads in units of columns aligned in the vertical direction. A first wire for adjusting tension of two wires, a third number of third wires that is the same as the number of pads for moving the plurality of pads to the side where the seat cushion is recessed, and a first number of first wires. A drive unit, a second drive unit that adjusts the tension of the second number of second wires, and a third drive unit that adjusts the tension of the third number of third wires may be provided.

  As described above, the seat device of the present disclosure is a seat device (20) that is mounted on a vehicle and includes a seat having a seat back (23) and a seat cushion (24), and the seat back (23) A plurality of pads (26a to 26i) arranged in a matrix of a first number in the vertical direction and a second number in the horizontal direction on the front surface side and / or the upper surface side of the seat cushion (24); The first number of first wires (30a to 30c) for interlockingly moving the pads (26a to 26i) in units of rows arranged in the horizontal direction, and the plurality of pads (26a to 26i) to the vertical direction The second number of second wires (32a to 32c) and the plurality of pads (26a to 26i) for interlocking movement in units of rows arranged in a row are respectively attached to the seat back (23) and the seat back (23). And / or a third number of third wires (34a to 34i) equal to the number of the pads (26a to 26i) for moving the seat cushion (24) to the indented side, and the first number of the third number of wires (34a to 34i). A first drive unit (40) for adjusting the tension of one wire (30a-30c), a second drive unit (50) for adjusting the tension of the second number of second wires (32a-32c), And a third drive unit (60) for adjusting the tension of the third number of third wires (34a to 34i).

  In the seat device according to the present disclosure, a plurality of pads are arranged in a matrix having a first number in the vertical direction and a second number in the horizontal direction on the front surface side of the seat back and / or the upper surface side of the seat cushion. . Then, the first driving unit adjusts the tension of the first number of first wires for interlockingly moving the plurality of pads in units of rows arranged in the horizontal direction, and sets the plurality of pads in units of columns arranged in the vertical direction. The number of pads for moving the plurality of pads to the side on which the seat back and / or the seat cushion is recessed is adjusted by the second drive unit by adjusting the tension of the second number of second wires for moving in conjunction with each other. The third drive unit adjusts the tension of the third number of third wires, which is the same number (the product of the first number and the second number). In this way, by adjusting the tension of the first number of first wires, the second number of second wires, and the third number of third wires, partial adjustment on the front side of the seat back and the upper side of the seat cushion is performed. The tension can be easily changed.

  In the seat device according to the present disclosure, the first driving unit (40) includes a first motor (42), the first motor (42), and the first number of the first wires (30a to 30c). A first connection release unit (45) for connecting to and releasing the connection, and the second drive unit (50) includes a second motor (52), the second motor (52), and the first A second connection release portion (55) that performs connection and release with each of the two second wires (32a to 32c), and the third drive portion (60) includes a third motor ( 62) and a third connection release portion (65) for connecting and releasing the connection between the third motor (62) and each of the third number of the third wires (34a to 34i). Also good. If it carries out like this, the change of the partial tension | tensile_strength on the front side of a seat back and the upper surface side of a seat cushion can be easily performed by operation | movement of a 1st-3rd motor and a 1st-3rd connection cancellation | release part.

  In the seat device according to the present disclosure, the pads (26a to 26i) may be attached with pressure sensors (29a to 29i) for detecting pressure acting on the pads (26a to 26i) from a passenger.

  In the seat device of the present disclosure, the first tension is set so that the tension at each position on the front surface side of the seat back (23) and / or the upper surface side of the seat cushion (24) becomes a tension according to the traveling state of the vehicle. It is good also as what further has the control apparatus (70,80) which controls the 3rd drive part (40,50,60).

  In the seat device according to the embodiment of the present disclosure including the control device, the control device (70, 80) may be configured such that the front side of the seat back (23) and / or the seat cushion (24) when the vehicle turns right. The first to third drive units (40, 50, 60) are controlled so that the left side tension on the upper surface side of the vehicle is stronger than the default, and when the vehicle turns left, the seat back (23) The first to third driving units (40, 50, 60) may be controlled so that the tension on the right side of the front side of the seat cushion and / or the upper side of the seat cushion (24) is stronger than the default. Good. In this way, it is possible to provide comfort to the occupant by receiving the lateral G acting on the occupant when turning right or turning left.

  In the seat device according to the present disclosure including a control device, the plurality of pads (26a to 26i) are disposed on a front surface side of the seat back (23), and the control device (70, 80) is configured by the vehicle. When traveling on a step, the first to third drive units (40, 50, 60) may be controlled so that the overall tension on the front side of the seat back (23) is weaker than the default. . In this way, it is possible to absorb the impact when the occupant is pressed against the seat back and suppress the subsequent occupant's turn-back, thereby providing comfort to the occupant.

  In the seat device according to an embodiment of the present disclosure including a control device, the plurality of pads (26a to 26i) are disposed on a front surface side of the seat back (23), and the pads (26a to 26i) are arranged on the pads (26a to 26i) from the occupant. Pressure sensors (29a to 29i) for detecting pressure acting on the pads (26a to 26i) are attached, and the control device (70, 80) is configured to operate when the airbag mounted on the vehicle is activated. When the pressure acting on the pads (29a to 29i) exceeds a threshold value, the first to third driving are performed so that the whole or part of the tension on the front side of the seat back (23) becomes weaker than the default. It is good also as what controls a part (40, 50, 60). By so doing, it is possible to absorb the impact when the occupant is pressed against the seat back and suppress the subsequent occupant's swaying, thereby further protecting the occupant.

  As mentioned above, although the form for implementing this indication was demonstrated, this indication is not limited to such embodiment at all, and can be implemented with various forms within the range which does not deviate from the gist of this indication. Of course.

  The present disclosure can be used in the manufacturing industry of sheet devices.

  20 seat device, 22 seat, 23 seat back, 24 seat cushion, 26a-26i pad, 27, 28 through hole, 29a-29i pressure sensor, 30a-30c, 32a-32c, 34a-34i wire, 40, 50, 60 Drive part, 42, 52, 62 Motor, 43, 53, 63 Rotating shaft, 44a-44c, 47a-47c, 54a-54c, 57a-57c, 64a-64i, 67a-67i Fitting part, 45, 55, 65 Selector section, 46a to 46c, 56a to 56c, 66a to 66i Tubular section, 48a to 48c Actuator, 70 Electronic control unit for actuator (actuator ECU), 72 Acceleration sensor, 80 Electronic control unit for body (body ECU), 90 Electronic control unit for air bag Grayed ECU), 92 navigation device.

Claims (7)

A seat device comprising a seat mounted on a vehicle and having a seat back and a seat cushion,
A plurality of pads arranged in a matrix of a first number in the vertical direction and a second number in the horizontal direction on the front side of the seat back and / or the upper side of the seat cushion;
The first number of first wires for interlockingly moving the plurality of pads in units of rows arranged in the lateral direction;
The second number of second wires for interlockingly moving the plurality of pads in units of rows arranged in the vertical direction;
A third number of third wires equal to the number of pads for moving the plurality of pads to the side where the seat back and / or the seat cushion is recessed,
A first drive for adjusting the tension of the first number of first wires;
A second drive unit for adjusting the tension of the second number of second wires;
A third driving unit for adjusting the tension of the third number of third wires;
A seat apparatus comprising: The seat device according to claim 1,
The first drive unit includes a first motor, and a first connection release unit that performs connection and release of the connection between the first motor and each of the first number of the first wires.
The second drive unit includes a second motor, and a second connection release unit that performs connection and release of connection between the second motor and each of the second number of the second wires,
The third drive unit includes a third motor, and a third connection release unit that performs connection and release of connection between the third motor and each of the third number of the third wires.
Sheet device. The seat device according to claim 1 or 2,
A pressure sensor that detects pressure acting on the pad from an occupant is attached to the pad.
Sheet device. The seat device according to any one of claims 1 to 3,
The apparatus further includes a control device that controls the first to third driving units so that tensions at respective positions on the front surface side of the seat back and / or the upper surface side of the seat cushion become tensions according to the traveling state of the vehicle. ,
Sheet device. The seat device according to claim 4,
The controller is
When the vehicle turns to the right, the first to third drive units are controlled such that the tension on the left side on the front side of the seat back and / or the upper side of the seat cushion is stronger than the default,
When the vehicle turns left, the first to third drive units are controlled such that the tension on the right side of the front side of the seat back and / or the upper side of the seat cushion is stronger than the default.
Sheet device. The seat device according to claim 4 or 5, wherein
The plurality of pads are arranged on the front side of the seat back,
The control device controls the first to third driving units so that the overall tension on the front side of the seat back is weaker than the default when the vehicle travels on a step.
Sheet device. The seat device according to any one of claims 4 to 6,
The plurality of pads are arranged on the front side of the seat back,
A pressure sensor that detects pressure acting on the pad from an occupant is attached to the pad,
When the air bag mounted on the vehicle is activated, the control device is configured such that when the pressure acting on the pad exceeds a threshold value, the entire or partial tension on the front side of the seat back is set against a default. Controlling the first to third driving units to be weak,
Sheet device.

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