seat system

Abstract

To provide a seat system capable of mitigating an impact on a floor from a seated person.SOLUTION: A seat system 1 comprises: a seat body 10 that is installed on a floor F; a height adjustment mechanism 40 that changes the height of the seat body 10; and a smartphone SP that can execute an application program for making a predetermined movement performed by a seated person P sitting on the seat body 10. The smartphone SP changes the height of the seat body 10 to second height, which is greater than first height, from the first height by controlling the height adjustment mechanism 40, when executing the application program.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a seat system capable of executing an application program that causes an occupant sitting in a seat body to perform a predetermined action. [Background technology]

[0002] Conventionally, seat systems capable of executing an application program that causes a person sitting in the seat body to perform a predetermined action have been known. For example, Patent Document 1 discloses a seat system that executes an application program that causes a character displayed on a smartphone screen to move toward a goal by having the person sitting in the seat body perform a predetermined action of alternately raising and lowering both legs. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2019-153135 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when an application program is executed and a predetermined action is performed by the seat occupant, an impact may be applied from under the feet of the seat occupant to the floor on which the seat body is placed.

[0005] Therefore, an object of the present invention is to provide a seat system that can mitigate the effect of the impact that a seated occupant gives to the floor. [Means for solving the problem]

[0006] The seat system comprises a seat body installed on the floor, a height adjustment mechanism for changing the height of the seat body, and a control unit capable of executing an application program that causes an occupant sitting in the seat body to perform a predetermined action, and is characterized in that when the control unit executes the application program, it controls the height adjustment mechanism to change the height of the seat body from a first height to a second height higher than the first height.

[0007] With this configuration, even in cases where an impact is applied to the floor from under the feet of an occupant due to a predetermined action performed by the occupant when an application program is executed, the impact of the impact from the occupant to the floor can be mitigated by increasing the height of the seat body.

[0008] The seat system may also be configured such that a battery is disposed under the floor.

[0009] This prevents the battery located under the floor from being affected by an impact from a seated occupant on the floor.

[0010] The floor may also be a floor of a vehicle compartment.

[0011] The second height may be the highest height within a movable range of the height of the seat body.

[0012] This minimizes the impact of the impact from the seated occupant on the floor.

[0013] The seat system may also include a sensor provided on the seat cushion of the seat body that detects the load applied to the seat surface of the seat cushion, and the control unit may be configured to set the second height based on the detection of the sensor.

[0014] This allows the second height to be set appropriately depending on the seated person, thereby effectively reducing the impact of the impact from the seated person to the floor.

[0015] The control unit may be configured to be capable of executing a plurality of the application programs, and when executing an application program, determine whether the application program to be executed is an application program that includes a foot movement action as the specified action, and if the application program includes a foot movement action, change the height of the seat body from the first height to the second height, and if the application program does not include a foot movement action, not change the height of the seat body from the first height.

[0016] This makes it possible to prevent the height of the seat body from being changed more than necessary.

[0017] Furthermore, the control unit may be configured to control the height adjustment mechanism to change the height of the seat body from the second height to the first height when the application program is terminated.

[0018] This allows the seat body to be automatically returned to the first height when the application program is terminated.

[0019] The seating system may also include a mat or shock-absorbing plate-like member placed under the feet of the seated occupant.

[0020] This can further reduce the impact of the impact from the seated occupant on the floor.

[0021] The seat system may also include a floor reinforcing structure that reinforces the floor and is provided under the feet of a seated occupant.

[0022] This can further reduce the impact of the impact from the seated occupant on the floor.

[0023] The floor may also have a first floor located at the feet of the seated occupant and a second floor located behind the first floor and at a higher position than the first floor, the seat body being installed on the second floor, and the seat system being configured to include an impact absorbing member that absorbs impact applied from the seat body to the second floor.

[0024] This makes it possible to mitigate the impact of an impact that is given to the second floor from the seat occupant via the seat body due to a predetermined action performed by the seat occupant as a result of the execution of the application program. [Effects of the Invention]

[0025] According to the present invention, the effect of the impact from the seated occupant to the floor can be reduced.

[0026] Furthermore, if the battery is located under the floor, the battery can be protected from the effects of an impact from a seated occupant on the floor.

[0027] Furthermore, when the second height is the highest height within the movable range of the seat body height, the effect of the impact from the seated occupant on the floor can be minimized.

[0028] Furthermore, when the second height is set based on the detection of the sensor, the influence of the impact from the seated occupant to the floor can be effectively alleviated.

[0029] In addition, by configuring the height of the seat body to be changed to a second height when the application program includes a foot movement action, and not changing the height of the seat body when the application program does not include a foot movement action, it is possible to prevent the height of the seat body from being changed more than necessary.

[0030] Furthermore, by configuring the seat body to change to the first height when the application program is terminated, the seat body can be automatically returned to the first height when the application program is terminated.

[0031] Furthermore, by providing a mat or plate-like member, the impact of the impact from the seated occupant on the floor can be further reduced.

[0032] Furthermore, by providing a floor reinforcement structure, the impact of the impact from the seated occupant on the floor can be further reduced.

[0033] In addition, by providing an impact absorbing member, the impact of the impact from the seat occupant to the second floor via the seat body can be reduced. [Brief explanation of the drawings]

[0034] [Figure 1] 1 is a diagram illustrating a seat system according to an embodiment. [Figure 2] FIG. 2 is a diagram illustrating the configuration of a seat system. [Figure 3] 10A and 10B are diagrams illustrating the height adjustment mechanism, with (a) showing the seat body at its lowest height, (b) showing it at an intermediate height, and (c) showing it at its highest height. [Figure 4] 10 is a flowchart showing the operation of a control unit. [Figure 5] FIG. 1(a) is a diagram showing a first modified example, and FIG. 1(b) is a diagram showing a second modified example. [Figure 6] FIG. 10 is a diagram illustrating a third modified example. [Figure 7] FIG. 10(a) is a diagram showing a fourth modified example, and FIG. 10(b) is a diagram showing a fifth modified example. [Figure 8] 13 is a flowchart showing the operation of the control unit when the height of the seat body is changed from a first height to a second height in a sixth modified example. [Figure 9]13A is a timing chart showing a change in pressure value, and FIG. 13B is a timing chart showing the operation of the height adjustment mechanism in a sixth modified example. DETAILED DESCRIPTION OF THE INVENTION

[0035] Hereinafter, an embodiment of a seat system will be described with reference to the drawings. In this specification, front, back, left, right, up and down are based on a person sitting in the seat body (seat occupant). As shown in FIG. 1, the seat system 1 of this embodiment includes a seat body 10, a height adjustment mechanism 40 for changing the height of the seat body 10, and a smartphone SP as an example of a control unit.

[0036] The seat body 10 includes a seat cushion 11, a seat back 12, and a headrest 13. Although not shown in the drawings, the seat cushion 11 includes a seat cushion frame that forms the frame of the seat cushion 11, a seat cushion pad that covers the seat cushion frame, and a seat cushion skin that covers the seat cushion frame and the seat cushion pad. The seat back 12 includes a seat back frame that forms the frame of the seat back 12, a seat back pad that covers the seat back frame, and a seat back skin that covers the seat back frame and the seat back pad.

[0037] The seat body 10 is installed on a floor F. In this embodiment, the floor F is the floor of the passenger compartment of the vehicle 50. That is, the seat body 10 is mounted on the vehicle 50. The floor F has a first floor F1 located at the feet of an occupant P seated in the seat body 10, and a second floor F2 located behind the first floor F1 and higher than the first floor F1. The seat body 10 is installed on the second floor F2.

[0038] A battery BT, such as a lithium-ion battery, is disposed under the floor F. The vehicle 50 may be, for example, an electric vehicle powered only by a motor, or a hybrid vehicle having two or more power sources including a motor. In this embodiment, the seat body 10 is provided as a rear seat in the vehicle, but may also be provided as a driver's seat, a passenger seat, or the center seat in a three-row seating arrangement.

[0039] As shown in Fig. 2, the seat system 1 further includes pressure sensors 21 to 26 provided on the seat main body 10. The pressure sensors 21 to 26 are sensors that detect the load applied to the seat surface of the seat main body 10 by the seated occupant P. Specifically, the pressure sensors 21 to 26 detect the pressure applied to the seat surface of the seat main body 10 by the seated occupant P. The pressure sensors 21 to 26 are each provided in pairs symmetrically on the left and right sides with respect to the center of the left and right sides of the seat main body 10.

[0040] The pressure sensors 21 to 23 are provided on the seat cushion 11 of the seat body 10. The pressure sensors 21 to 23 detect the pressure applied to the seat surface of the seat cushion 11 by the seated occupant P. The pressure sensors 21 to 23 are arranged, for example, between the seat cushion pad and the seat cushion cover.

[0041] The pressure sensor 21 is disposed at a position corresponding to the thighs of the seated occupant P. The pressure sensor 21 is capable of measuring the pressure applied from the thighs of the seated occupant P to the seat surface of the seat cushion 11. The pressure sensors 22 and 23 are disposed at positions rearward and away from the pressure sensor 21, specifically at positions corresponding to the buttocks of the seated occupant P. The pressure sensors 22 and 23 are capable of measuring the pressure exerted by the buttocks of the seated occupant P on the seat surface of the seat cushion 11.

[0042] The pressure sensors 24 to 26 are provided on the seat back 12 of the seat main body 10. The pressure sensors 24 to 26 detect the pressure applied to the seat surface of the seat back 12 by the seated occupant P. The pressure sensors 24 to 26 are arranged, for example, between the seat back pad and the seat back skin.

[0043] The pressure sensors 24, 25 are disposed in the lower part of the seat back 12, specifically at positions corresponding to the waist of the seated occupant P. The pressure sensors 24, 25 are capable of measuring the pressure exerted by the waist of the seated occupant P on the seat surface of the seat back 12. The pressure sensor 26 is disposed at a position above and away from the pressure sensors 24 and 25, specifically, at a position corresponding to the upper part of the back of the seated occupant P. The pressure sensor 26 can measure the pressure applied to the seat surface of the seat back 12 from the position corresponding to the upper part of the back of the seated occupant P.

[0044] As shown in FIG. 3( a ), the height adjustment mechanism 40 includes a base portion 41 , a front link 42 , a rear link 43 , and a drive source 45 . The base portion 41 is installed on the second floor F2. A slide rail for sliding the seat body 10 back and forth may be provided on the second floor F2, and in this case, the base portion 41 may be installed on the second floor F2 via the slide rail, for example.

[0045] The front link 42 and the rear link 43 each have a lower end rotatably connected to the base portion 41 and an upper end rotatably connected to a seat cushion frame (not shown) of the seat cushion 11. The front link 42 is located forward of the rear link 43. The rear link 43 has gear teeth (not shown) arranged on an arc centered on the rotation axis of the upper end.

[0046] The drive source 45 includes a motor (not shown) that can rotate forward and backward and a reduction gear, and the output gear that rotates by reducing the rotation speed of the motor engages with gear teeth of the rear link 43 to rotate the rear link 43. The base portion 41, the front link 42, the rear link 43, and the seat cushion frame of the seat cushion 11 form a four-joint link.

[0047] When the motor of the drive source 45 rotates forward, the height adjustment mechanism 40 causes the front link 42 and the rear link 43 to rise from a reclined state, for example, as shown in the order of Figures 3(a), (b), and (c), thereby raising the seat body 10 and increasing the height of the seat body 10. When the motor of the drive source 45 rotates reversely, the height adjustment mechanism 40 causes the front link 42 and the rear link 43 to reclined from an upright state, for example, as shown in the order of Figures 3(c), (b), and (a), thereby lowering the seat body 10 and decreasing the height of the seat body 10.

[0048] 2, the smartphone SP acquires the pressure values ​​acquired by the pressure sensors 21 to 26 via an ECU (electronic control unit) 100. The smartphone SP also controls the drive source 45 of the height adjustment mechanism 40 via the ECU 100.

[0049] The ECU 100 includes a CPU, a ROM, a RAM, a rewritable nonvolatile memory, and the like (not shown), and realizes predetermined functions by executing pre-stored programs. The ECU 100 is connected to a short-range communication device 3A that enables short-range wireless communication, such as Bluetooth (registered trademark) or Wi-Fi (registered trademark). The ECU 100 is also connected to pressure sensors 21 to 26. The ECU 100 is also connected to a drive source 45 of the height adjustment mechanism 40.

[0050] The ECU 100 has a function of transmitting pressure values ​​acquired from the pressure sensors 21 to 26 to the smartphone SP via the short-range communication device 3A. The ECU 100 and the short-range communication device 3A may be provided in the seat body 10 or in the vehicle 50 (excluding the seat body 10).

[0051] The smartphone SP is capable of executing multiple application programs (hereinafter abbreviated as "apps"). More specifically, multiple apps are installed on the smartphone SP, and the smartphone SP is capable of executing the installed apps. The apps include, for example, game apps that provide games. Game apps include, for example, a 100m sprint game app, a Zen meditation game app, and the like.

[0052] The 100m sprint game app provides a game in which a seated person P moves a character displayed on the screen of the smartphone SP toward a goal by alternately raising and lowering both legs while seated on the seat main body 10. In the 100m sprint game, the faster the person raises and lowers their legs, the faster the character can run. The smartphone SP determines, for example, based on pressure values ​​acquired from the pressure sensor 21, whether or not the seated person P is raising and lowering their legs, and how fast they are, and progresses through the game.

[0053] The Zen meditation game app provides a game in which the player adjusts their sitting position so that a mark indicating the center of gravity of the body, displayed on the screen of the smartphone SP, approaches a reference point. In the Zen meditation game, the closer the mark indicating the center of gravity of the body is to the reference point, the higher the score they can get, so the seated person P moves as little as possible after moving the mark indicating the center of gravity of the body closer to the reference point and sits still on the seat body 10. The smartphone SP determines the position of the center of gravity of the seated person P based on pressure values ​​acquired from the pressure sensors 21 to 26, for example, and progresses through the game.

[0054] The apps that the smartphone SP can execute include an app that causes the seat occupant P sitting in the seat main body 10 to perform a predetermined action. That is, the smartphone SP can execute an app that causes the seat occupant P to perform a predetermined action (hereinafter referred to as a "predetermined action app").

[0055] In this embodiment, the predetermined action application is a game application that provides a game including a foot movement as the predetermined action. As an example, the predetermined action application is a 100-meter sprint game application. The 100-meter sprint game application causes the seated person P to alternately raise and lower both legs as a foot movement.

[0056] When executing an app, the smartphone SP controls the height adjustment mechanism 40 to change the height of the seat body 10 from the current first height to a second height higher than the first height. In more detail, when executing an app, the smartphone SP first determines whether the app to be executed is a predetermined operation app.

[0057] When the application being executed is a predetermined operation application such as a 100m sprint game application, the smartphone SP controls the drive source 45 of the height adjustment mechanism 40 to change the height of the seat main body 10 from the first height to the second height. On the other hand, when the application being executed is not a predetermined operation application such as a Zen meditation game application, the smartphone SP does not change the height of the seat main body 10 from the first height. In other words, when the application being executed is not a predetermined operation application, the smartphone SP maintains the height of the seat main body 10 at the first height.

[0058] In this embodiment, the second height is the highest height within the movable range of the height of the seat body 10 (see FIG. 3(c)).

[0059] To determine whether an application to be executed is a predetermined operation application, for example, a flag indicating that the application is a predetermined operation application is stored in advance in the predetermined operation application, and the smartphone SP can be configured to determine that the application to be executed is a predetermined operation application if the flag is stored, and to determine that the application to be executed is not a predetermined operation application if the flag is not stored.

[0060] When the smartphone SP ends the app, it controls the height adjustment mechanism 40 to change the height of the seat main body 10 from the second height to the first height. In more detail, when the predetermined operation app is ended, for example, when the seated occupant P performs an operation to end the predetermined operation app, the smartphone SP controls the drive source 45 of the height adjustment mechanism 40 to change the height of the seat main body 10 from the second height to the first height. In other words, when the smartphone SP ends the predetermined operation app, it returns the height of the seat main body 10 to the original height before the predetermined operation app was executed.

[0061] Next, the operation of the smartphone SP will be described with reference to a flowchart. 4, the smartphone SP determines whether the seated person P has performed an operation to launch an app using the smartphone SP (S101). If the seated person P has not performed an operation to launch an app (S101, No), the smartphone SP ends the process.

[0062] When the seated person P launches an application (S101, Yes), the smartphone SP determines whether the application to be executed is a predetermined operation application (S102). If the application is not a predetermined operation application (S102, No), the smartphone SP ends the process without changing the height of the seat body 10 from the first height.

[0063] If the application to be executed is a predetermined operation application (S103, Yes), the smartphone SP controls the height adjustment mechanism 40 to change the height of the seat main body 10 from the first height to the second height (S103). In detail, the smartphone SP changes the height of the seat main body 10 from the current first height to the second height, which is the highest height within the movable range of the height of the seat main body 10.

[0064] Thereafter, the smartphone SP determines whether the seated person P has performed an operation to terminate the app using the smartphone SP (S104). If the seated person P has performed an operation to terminate the app (S104, Yes), the smartphone SP controls the height adjustment mechanism 40 to change the height of the seat body 10 from the second height to the original first height (S105), and ends the process.

[0065] According to the seat system 1 described above, even in cases where an impact is applied from under the feet of the seated person P to the floor F due to a predetermined action, such as alternately raising and lowering both legs, performed by the seated person P in response to execution of the app, the height of the seat main body 10 can be increased to mitigate the effect of the impact applied from the seated person P to the floor F. This makes it possible to mitigate, for example, vibrations and noises that occur in association with the predetermined action performed by the seated person P. Furthermore, because the height of the seat main body 10 is at the first height, which is lower than the second height, before the app is executed, it is easy for the seated person P to sit on the seat main body 10.

[0066] In addition, the battery BT arranged below the floor F can be prevented from being affected by an impact from the seated person P to the floor F.

[0067] Furthermore, since the second height is the highest height within the movable range of the height of the seat body 10, the effect of the impact from the seated person P to the floor F can be minimized.

[0068] Furthermore, if the application to be executed is a predetermined operation application, the height of the seat body 10 is changed from the first height to the second height, and if the application to be executed is not a predetermined operation application, the height of the seat body 10 is not changed from the first height, so that the height of the seat body 10 is not changed more than necessary.

[0069] Furthermore, when the application is terminated, the seat body 10 can be automatically returned to the first height, that is, the original height.

[0070] Although the embodiment has been described above, the seat system can be modified as appropriate as shown in the following examples. In the following description, differences from the above-described embodiment will be described, and the same points will be denoted by the same reference numerals and will not be described again as appropriate.

[0071] As shown in FIG. 5(a), the seat system 1 may be configured to include a rug 61 or a shock-absorbing plate-like member 62 placed under the feet of the seated person P. The rug 61 or plate-like member 62 is placed on the first floor F1 located under the feet of the seated person P. The rug 61 is, for example, a mat or carpet. The plate-like member 62 is, for example, a plate-like member made of foamed polypropylene, polystyrene foam, rubber, or the like. By providing such a rug 61 or plate-like member 62, the impact of the impact given from the seated person P to the floor F (first floor F1) can be further reduced.

[0072] The mat 61 and the plate-like member 62 may be removable from the floor F. That is, the mat 61 and the plate-like member 62 may be able to be removed from the state in which they are laid on the floor F. The mat 61 and the plate-like member 62 may also be fixed to the floor F by being attached to the floor F, for example.

[0073] 5(b), the seat system 1 may further include an elastic member 63 disposed between the floor F (first floor F1) and the plate-like member 62. The elastic member 63 is, for example, a coil spring. By including such an elastic member 63, the effect of an impact from the seated person P on the floor F can be further reduced.

[0074] As shown in FIG. 6, the seat system 1 may also be configured to include a floor reinforcing structure 70 that reinforces the floor F. The floor reinforcing structure 70 is provided under the feet of a seated occupant P. For example, the floor reinforcing structure 70 shown in FIG. 6 includes a cross member 72 that is disposed under a floor material 71 that constitutes the floor F and supports the floor material 71 from below. The cross member 72 is made of metal, and its left and right ends are fixed, for example, by welding to left and right side sills (not shown) that are provided on the body of the vehicle 50. The cross member 72 may be fixed to the floor material 71 by welding while being fixed to the side sills, or instead of being fixed to the side sills.

[0075] By providing such a floor reinforcing structure 70, the effect of the impact given to the floor F by the seated person P can be further alleviated. The floor reinforcement structure may be, for example, a structure in which the floor material in the portion of the floor located under the feet of a seated person is thicker than the surrounding portion.

[0076] 7(a) and 7(b), the seat system 1 may be configured to include shock absorbing members 81 and 82 that absorb shocks applied from the seat main body 10 to the second floor F2. The shock absorbing members 81 and 82 are provided below the seat main body 10. For example, as shown in FIG. 7(a), the shock absorbing member 81 is a member made of foamed polypropylene, expanded polystyrene, rubber, or the like, and is disposed between the second floor F2 and the base portion 41 of the height adjustment mechanism 40. As shown in FIG. 7(b), the shock absorbing member 82 is a damper and is disposed, for example, between the base portion 41 and the seat cushion 11 of the seat main body 10.

[0077] By providing such shock absorbing members 81, 82, it is possible to mitigate the effect of an impact that is given from the seated occupant P to the second floor F2 via the seat body 10 due to a predetermined action taken by the seated occupant P when the app is executed. Also, for example, in a case where a battery BT1 is arranged behind the first floor F1 and below the second floor F2 as shown by the imaginary line, by providing the shock absorbing members 81, 82, it is possible to prevent the effect of an impact that is given from the seated occupant P to the second floor F2 from reaching the battery BT1.

[0078] In the above embodiment, the smartphone SP was configured to set the second height to the highest height within the movable range of the height of the seat body 10, but for example, the smartphone SP may be configured to set the second height based on the detection of a pressure sensor 21 as an example of a sensor.

[0079] 8 and 9, when the height of the seat body 10 is changed from a first height to a second height, the smartphone SP first controls the height adjustment mechanism 40 to raise the seat body 10 from the current first height (S111, t1). When the seat body 10 is raised, the thighs of the seated occupant P come into contact with the seat surface of the seat cushion 11 (see FIG. 3). This contact force gradually increases, and the pressure value P21 increases as shown in FIG. 9(a). Then, when the seat body 10 has risen to a certain level, the amount of change ΔP per unit time of the pressure value P21, i.e., the slope of the graph in FIG. 9(a), gradually decreases.

[0080] After the seat body 10 starts to rise, the smartphone SP acquires a pressure value P21 from the pressure sensor 21 (S112). Then, the smartphone SP calculates a change amount ΔP per unit time of the acquired pressure value P21 (S113), and determines whether the calculated change amount ΔP is equal to or less than a threshold value ΔPth (S114). If the change amount ΔP is not equal to or less than the threshold value ΔPth (S114, No), the smartphone SP returns to step S112.

[0081] When the amount of change ΔP becomes equal to or less than the threshold value ΔPth (S114, Yes), the smartphone SP controls the height adjustment mechanism 40 to stop the seat body 10 (S115, t2). In this modification, the height of the seat body 10 when it is stopped is the second height set based on the detection of the pressure sensor 21.

[0082] By setting the second height in this manner based on the detection of the pressure sensor 21, an appropriate second height can be set according to the seated occupant P, thereby effectively mitigating the impact of the impact from the seated occupant P to the floor F.

[0083] The seat system may be configured to include, for example, a sensor or a camera for measuring the height, leg length, etc. of the seated occupant, and the smartphone may be configured to set the second height based on the measurements of the height, leg length, etc. of the seated occupant. Alternatively, for example, the smartphone may be configured to set the second height based on information such as height input by the seated occupant. Alternatively, the seated occupant may be configured to input or select the second height and set it as desired.

[0084] In the above embodiment, when the app is terminated, the height of the seat body 10 is changed from the second height to the first height (original height), but for example, when the app is terminated, the height of the seat body may be maintained at the second height.

[0085] Furthermore, when executing the app, the seat occupant may be allowed to select whether or not to enable a function for changing the height of the seat body from a first height to a second height. For example, when the seat occupant operates a smartphone to launch the app, the smartphone may be configured to display a screen on the screen prompting the user to select whether or not to enable the height change function, and to enable the height change function if the seat occupant operates a YES button, and to disable the height change function if the seat occupant operates a NO button. If the height change function is disabled, the smartphone does not change the height of the seat body when executing the app.

[0086] In addition, if a fault occurs in the seat system, such as a malfunction of the height adjustment mechanism, a disconnection of the pressure sensor, or a communication failure, the smartphone may be configured to disable the height change function.

[0087] In the above embodiment, the foot movement is exemplified as an action of alternately raising and lowering both legs, but the foot movement may be, for example, an action of raising and lowering one leg, or an action of raising and lowering the heel. Furthermore, the predetermined action may be an action other than a foot movement, as long as it causes an impact on the floor. Note that even if an app causes an action that causes an impact on the floor, if the app infrequently causes such an action, it may be configured to be determined not to be a predetermined action app.

[0088] In the above embodiment, a smartphone SP that can be carried by the seat occupant P is exemplified as the control unit, but the control unit may also be, for example, a tablet terminal. Also, the control unit may not be a portable terminal, but may be, for example, a terminal provided in the seat body or a terminal provided in the vehicle (excluding the seat body). Also, for example, the control unit may be configured so that some functions are executed by a portable terminal such as a smartphone, and the remaining functions are executed by a terminal provided in the seat body or the like. In other words, the control unit may be configured to include a portable terminal and a terminal provided in the seat body or the like.

[0089] In the above embodiment, the pressure sensor 21 is exemplified as a sensor for detecting the load applied to the seat surface of the seat cushion 11, but the sensor may be, for example, a capacitance sensor. Also, the seat system may be configured without a sensor for detecting the load applied to the seat surface of the seat cushion.

[0090] In the above embodiment, an automobile is used as an example of a vehicle, but the vehicle may be, for example, a railroad car. Also, in the above embodiment, floor F is the floor of the passenger compartment of vehicle 50, but the floor may be the floor of the cabin of a vehicle other than a vehicle, for example, a ship, an airplane, or the like. Also, the floor may be the floor of a facility such as a game center, or the floor of a house.

[0091] In the above embodiment, the battery BT is disposed under the floor F, but for example, the battery does not have to be disposed under the floor. Also, in the above embodiment, the floor F is configured such that there is a step between the first floor F1 located under the feet of the seated person P and the second floor F2 on which the seat body 10 is installed, but for example, the floor may be configured such that there is no step between the part located under the feet of the seated person P and the part on which the seat body is installed.

[0092] In the above embodiment, a height adjustment mechanism 40 including a base portion 41, a front link 42, a rear link 43, and a drive source 45 is exemplified, but for example, the height adjustment mechanism may be configured to change the height of the seat body using an electric cylinder or the like.

[0093] In the above embodiment, the seat body 10 including the seat cushion 11, the seat back 12, and the headrest 13 has been exemplified, but for example, the seat body may be configured without a headrest, or may be configured without a seat back. Also, for example, the seat body may be configured with the seat cushion and the seat back integrally formed, or with the seat back and the headrest integrally formed, or with the seat cushion, seat back, and headrest integrally formed.

[0094] The elements described in the above-described embodiment and modified examples may be implemented in any combination. [Explanation of symbols]

[0095] 1 seat system 10 Seat body 11 Seat cushion 21 Pressure Sensor 40 Height adjustment mechanism 50 vehicles 61 Rugs 62 Plate-shaped member 70 Floor reinforcement structure 81, 82 Impact absorbing member BT Battery F Floor F1 1st floor F2 2nd floor P seated person SP Smartphone

Claims

1. A seat body installed on the floor; a height adjustment mechanism for changing the height of the seat body; a control unit capable of executing an application program that causes an occupant sitting in the seat body to perform a predetermined action; A seat system characterized in that, when the control unit executes the application program, it controls the height adjustment mechanism to change the height of the seat body from a first height to a second height higher than the first height.

2. 2. The seat system according to claim 1, wherein a battery is disposed under the floor.

3. 3. The seat system according to claim 2, wherein the floor is a floor of a passenger compartment of a vehicle.

4. 4. The seat system according to claim 1, wherein the second height is the highest height within a movable range of the seat body.

5. a sensor provided in a seat cushion of the seat body, the sensor detecting a load applied to a seat surface of the seat cushion; 4. The seat system according to claim 1, wherein the control unit sets the second height based on detection by the sensor.

6. The control unit A plurality of the application programs can be executed; When executing the application program, it is determined whether the application program to be executed is an application program that includes a foot movement as the predetermined movement; If the application program includes a foot movement action, the height of the seat body is changed from the first height to the second height; If the application program does not include a foot movement action, the height of the seat body is not changed from the first height.

6. A seat system according to any one of claims 1 to 5.

7. 7. The seat system according to claim 1, wherein the control unit controls the height adjustment mechanism to change the height of the seat body from the second height to the first height when the application program is terminated.

8. 8. The seat system according to claim 1, further comprising a mat or a shock-absorbing plate-like member placed under the feet of the seated person.

9. 9. The seat system according to claim 1, further comprising a floor reinforcing structure for reinforcing the floor, the floor reinforcing structure being provided under the feet of a seated occupant.

10. The floors include a first floor located at the feet of a seated occupant and a second floor located behind the first floor and at a higher position than the first floor, The seat body is installed on the second floor, 10. The seat system according to claim 1, further comprising an impact absorbing member that absorbs an impact applied from the seat body to the second floor.

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