JP2007210389A - Seat device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat device for a vehicle capable of restraining a seat occupant properly using a side support without giving a discomfort feeling to the occupant. <P>SOLUTION: The seat device 10 for vehicle is structured so that the contacting part with the occupant of a movable side support part 26 is regulated in advance to a temperature (10°C or more as one example) which is considered to be comfortable for a seat occupant when the occupant is restrained by the side support part 26. Therefore, even in case the occupant is restrained by the side support part 26 first after his getting on, when for example the intra-cabin temperature is low in winter etc., he contacting with the side support part 26 will not feel coldness. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle seat device, and more particularly, to a vehicle seat device that includes a movable side support portion that can increase or decrease the degree of restraint on a seated occupant on a side portion of a seat back provided in a vehicle seat.

  Conventionally, the following is known as a vehicular seat device (for example, refer to patent documents 1). For example, Patent Document 1 discloses an example of a vehicle seat side support control method and apparatus. In the example described in Patent Document 1, a side support that supports the seating posture of the occupant is provided, and this side support can be adjusted between the open position and the closed position to adjust the amount of support for the seated occupant. It is configured.

By the way, conventionally, the following is known as a technique capable of adjusting the seat surface temperature of a vehicle seat (see, for example, Patent Document 2). For example, Patent Document 2 discloses an example of a temperature control device for a vehicle seat. In the example described in Patent Document 2, a cold / hot air generating device is built in a vehicle seat, and the temperature of the seat surface is controlled by sending the cold air or hot air from the cold / hot air generating device to the seat surface. It has become so.
Japanese Patent Publication No. 6-55568 (FIG. 4) Japanese Patent Laying-Open No. 2005-47456 (FIG. 1) Japanese Utility Model Publication No. 2-3218

  However, in the vehicle seat configured to have a movable side support as described in Patent Document 1, for example, even if the temperature control device described in Patent Document 2 is provided, the seat surface of the side support has an appropriate temperature. The side support may be in close contact with the occupant in a state where it has not reached. In this case, the side support whose seat surface does not reach the appropriate temperature may come into close contact with the passenger, which may cause discomfort to the passenger. Therefore, in a vehicle seat configured with a movable side support as described in Patent Document 1, in order to be able to restrain the occupant accurately with the side support without causing discomfort to the occupant. There is room for improvement.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a vehicle seat device capable of restraining an occupant accurately by side support without causing discomfort to the occupant. .

  In order to solve the above-described problem, the vehicle seat device according to claim 1 is configured to have a movable side support portion operable to increase or decrease a degree of restraint on a seated occupant on a side portion of the seat back. A temperature at which the temperature of the contact portion between the vehicle seat, the driving means for operating the movable side support portion so as to increase or decrease the degree of restraint of the movable side support portion on the seated occupant, and the seated occupant of the movable side support portion can be adjusted. Adjusting means, temperature detecting means for detecting or predicting the temperature of the contact portion with the seated occupant of the movable side support portion, control means for operating the driving means based on the detection result or prediction result of the temperature detecting means, It is provided with.

  In the vehicle seat device according to claim 1, when the temperature of the contact portion of the movable side support portion with the seated occupant is adjusted by the temperature adjusting means, the temperature of the contact portion of the seated occupant of the movable side support portion becomes the temperature detecting means. Detected or predicted by. Then, based on the detection result or prediction result of the temperature detection means, the drive means is operated by the control means, and thereby the movable side support portion operates so that the degree of restraint on the seated occupant is increased or decreased.

  Thus, in the vehicle seat device according to claim 1, the degree of restraint of the movable side support portion on the seated occupant in a state where the temperature of the contact portion with the seated occupant of the movable side support portion is adjusted by operating the temperature adjusting means. Can be increased or decreased. Therefore, for example, when the occupant is restrained by the movable side support portion, if the contact portion of the movable side support portion with the seated occupant is adjusted in advance to a temperature that is comfortable for the seated occupant, the occupant can move without causing discomfort. It becomes possible to restrain an occupant accurately by the side support part.

  According to a second aspect of the present invention, in the vehicle seat device according to the first aspect, the control means is a contact portion of the movable side support portion with a seated occupant based on a detection result or a prediction result of the temperature detection means. Until the temperature reaches a predetermined value, the drive means is operated so that the degree of restraint of the movable side support portion on the seated occupant is low.

  In the vehicle seat device according to claim 2, the temperature of the contact portion of the movable side support portion with the seated occupant is adjusted by the temperature adjusting means, and the temperature of the contact portion of the seated occupant of the movable side support portion is a predetermined value by the control means. Until reaching the position, the driving means is operated by the control means so that the degree of restraint of the movable side support portion on the seated occupant is low.

  Thus, in the vehicle seat device according to the second aspect, the degree of restraint of the movable side support portion on the seated occupant is low until the temperature of the contact portion of the seated occupant of the movable side support portion reaches a predetermined value. Thereby, before the temperature of the contact part of the seated occupant of the movable side support part reaches a temperature at which the seated occupant is comfortable, for example, the degree of restraint on the seated occupant of the movable side support part is increased, and the seated occupant feels uncomfortable. This can be prevented.

  In order to solve the above problem, the vehicle seat device according to claim 3 includes a movable side support portion operable to increase or decrease the degree of restraint on the seated occupant on the side portion of the seat back. The temperature of the contact portion between the vehicle seat, the driving means for operating the movable side support portion so as to increase or decrease the degree of restraint on the seated occupant of the movable side support portion, and the seated occupant of the movable side support portion can be adjusted Temperature control means, travel state detection means for detecting the travel state of the vehicle, operation state detection means for detecting the operation state of the temperature control means, detection results of the travel state detection means, and operation state detection means Control means for operating the driving means based on the detection result.

  In the vehicle seat device according to claim 3, the running state of the vehicle is detected by the running state detecting means, and the operating state of the temperature adjusting means capable of adjusting the temperature of the contact portion with the seated occupant of the movable side support portion is the operating state. It is detected by the detection means. Then, based on the detection result of the traveling state detection unit and the detection result of the operation state detection unit, the driving unit is operated by the control unit, and thereby the movable side support unit operates so that the degree of restraint on the seated occupant is increased or decreased. .

  Thus, in the vehicle seat device according to the third aspect, the degree of restraint of the movable side support portion on the seated occupant can be increased or decreased according to the traveling state of the vehicle and the operating state of the temperature control means. Here, even when the occupant needs to be restrained by the movable side support portion according to the traveling state of the vehicle, the temperature of the contact portion of the movable side support portion with the seated occupant is appropriate for the seated occupant when the temperature control means is not operating. It may not be. Therefore, for example, when the temperature of the contact portion of the movable side support portion with the seated occupant is not suitable for the seated occupant, the seated occupant is not restrained by the movable side support portion regardless of the traveling state of the vehicle, while the temperature control means If the temperature of the contact part of the movable side support part with the seated occupant is appropriate for the seated occupant, the movable side support part restrains the seated occupant according to the running state of the vehicle. The occupant can be restrained accurately by the movable side support part without giving a pleasant feeling.

  According to a fourth aspect of the present invention, in the vehicular seat device according to the third aspect, the control means is based on a detection result of the traveling state detecting means when the temperature adjusting means is not operating. While the drive means is operated so that the movable side support portion operates within the first operation range, the second operation different from the first operation range when the temperature adjustment means is operating. The driving means is operated so that the movable side support portion operates within a range.

  In the vehicle seat device according to claim 4, when the temperature adjustment means is not operated, the drive means is operated by the control means based on the detection result of the traveling state detection means, whereby the movable side support portion is the first. Operates within the operating range. On the other hand, when the temperature control means is operating, the drive means is operated by the control means so that the movable side support portion operates within a second operation range different from the first operation range.

  Thus, in the vehicle seat device according to the fourth aspect, the operating range of the movable side support portion can be made different between when the temperature adjusting means is not operating and when the temperature adjusting means is operating. Therefore, for example, if the operating range of the movable side support portion when the temperature control means is operating is set to a side that restrains the seated occupant more than when the temperature control means is not operating, the temperature control means is operating. For example, it is possible to restrain the seated occupant while maintaining the movable side support portion, which has been brought to a comfortable temperature, for example, by the temperature control means closer to the seated occupant.

  According to a fifth aspect of the present invention, in the vehicle seat device according to the fourth aspect, the degree of restraint of the movable side support portion on the seated occupant is weakest in the second operation range than in the first operation range. The position is on the side of restraining the seated occupant.

  As in the vehicle seat device according to claim 5, the second operation range is set to a side where the restraint degree of the movable side support portion with respect to the seated occupant is weaker than that of the first operation range. If it is done, the operating range of the movable side support part when the temperature control means is operating can be set to the side that restrains the seated occupant more than when the temperature control means is not operating.

  As described above in detail, according to the present invention, the degree of restraint of the movable side support portion on the seated occupant can be increased or decreased while the temperature of the contact portion of the movable side support portion with the seated occupant is adjusted. Therefore, for example, when the occupant is restrained by the movable side support part, if the contact part of the movable side support part with the seated occupant is adjusted to a temperature that is comfortable for the seated occupant, the movable side support does not cause discomfort to the occupant. The occupant can be restrained more accurately by the part.

[First embodiment]
Hereinafter, the vehicle seat device 10 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4.

  FIG. 1 shows the overall configuration of a vehicle seat device 10 according to the first embodiment of the present invention. FIGS. 2 and 3 show the vehicle seat device 10 according to the first embodiment of the present invention. The provided vehicle seat 12 is shown. In FIG. 1 to FIG. 3, an arrow Fr, an arrow Out, and an arrow Up indicate the vehicle front-rear direction front side, the vehicle width direction outer side, and the vehicle vertical direction upper side, respectively.

  As shown in FIG. 1, in the vehicle seat device 10 according to the present embodiment, the vehicle seat 12 is provided in the driver seat of the vehicle 40. The vehicle seat 12 is provided with a seat back 18, and side frames 20 formed along the vertical direction of the both side portions are built in both side portions of the seat back 18.

  As shown in FIG. 2, the side frames 20 have their upper and lower ends rotated around a virtual axis L extending substantially in the vehicle vertical direction at the upper and lower ends of the main frame 22 incorporated in the seat back 18. It is connected freely. Further, as shown in FIG. 1, a pair of drive motors 24 (drive means) is built in the seat back 18 of the vehicle seat 12, and each side frame 20 is rotated by the drive motor 24. It is the composition which becomes.

  Then, both side portions of the seat back 18 are movable side support portions 26 that open and close as shown in FIG. 3 as the side frame 20 rotates. The movable side support portion 26 restrains the seated occupant from the vehicle width direction outer side of the vehicle seat 12 and can increase or decrease the degree of restraint on the seated occupant by opening and closing as shown in FIG. Yes.

  In the present embodiment, the movable side support portion 26 is, for example, shown in a neutral state (NORMAL) as shown by a solid line in FIG. 3 and an imaginary line L1 (dashed line) as shown in FIG. The closed state (CLOSE) as described above and the open state (OPEN) as indicated by an imaginary line L2 (two-dot chain line) in FIG. 3 are operated. When the movable side support portion 26 is closed (CLOSE) as indicated by an imaginary line L1 (one-dot chain line) in FIG. 3, the degree of restraint on the seated occupant is highest, and an imaginary line L2 (two-dot chain line) in FIG. In the state where the movable side support portion 26 is opened (OPEN) as shown by the following, the degree of restraint on the seated occupant is the lowest.

  Further, in the vehicle seat 12, as shown in FIGS. 1 to 3, a seat heater 30 as a temperature adjusting means is built in the skin side of the movable side support portion 26. The seat heater 30 is controlled by a control circuit 28 to be described later, and is configured to be able to adjust the temperature of the contact portion (that is, the seat surface) of the movable side support portion 26 with the seated occupant.

  As shown in FIG. 1, in the vehicle seat device 10 of the present embodiment, a control circuit 28 as a control unit is provided at an appropriate position of the vehicle 40, and the control circuit 28 includes a seat heater switch 32, a temperature. A seat temperature detection sensor 34 as a detection means and a vehicle information output device 36 as a traveling state detection means are connected.

  The seat heater switch 32 is arranged, for example, at an appropriate position of the vehicle seat 12, an instrument panel, or the like, and is configured to be able to output a signal corresponding to an on / off operation by the occupant to the control circuit 28.

  The seat temperature detection sensor 34 is disposed, for example, in the movable side support portion 26 or at an appropriate position of the vehicle seat 12 and can output a temperature detection signal corresponding to the temperature of the contact portion of the movable side support portion 26 with the seated occupant. It is configured. The seat temperature detection sensor 34 may be configured to directly detect the temperature of the contact portion of the movable side support portion 26 with the seated occupant, and the contact of the movable side support portion 26 with the seated occupant. The temperature of the contact portion of the movable side support portion 26 with the seated occupant may be indirectly detected at a position away from the portion (that is, for example, it may be configured by thermography).

  For example, the vehicle information output device 36 detects the stop state of the vehicle 40 by detecting the speed of the vehicle 40, or detects the vehicle running state such as running on a road on which the vehicle 40 curves due to the inclination of the vehicle body or the like. Or a signal corresponding to the traveling state is output to the control circuit 28.

  The control circuit 28 is constituted by an electric circuit including a CPU, a ROM, a RAM, and the like, and is driven by inputting signals output from the seat heater switch 32, the seat temperature detection sensor 34, and the vehicle information output device 36 described above. In this configuration, the motor 24 and the seat heater 30 are operated. The operation of the control circuit 28 will be described in detail below.

  Next, the operation of the vehicle seat device 10 according to the first embodiment of the present invention will be described with reference to FIG. 4 as appropriate. In addition, the flowchart which shows operation | movement of the vehicle seat apparatus 10 which concerns on 1st embodiment of this invention is shown by FIG.

  The control circuit 28 starts the program processing shown in the flowchart of FIG. 4, for example, when an activation signal output in response to, for example, a passenger getting on from a vehicle central control device (not shown).

  When the program circuit shown in FIG. 4 is started, the control circuit 28 first operates the drive motor 24 to open the movable side support portion 26 as shown by an imaginary line L2 (two-dot chain line) in FIG. (Step S1). Subsequently, the control circuit 28 detects an output signal from the seat heater switch 32 (step S2), and determines whether or not the seat heater switch 32 is switched on (step S3).

  At this time, when the seated occupant does not need to warm the seat, the seat heater switch 32 is switched off. In this case, a switch-off signal is output from the seat heater switch 32 to the control circuit 28. The Therefore, in this case, the control circuit 28 determines that the seat heater switch 32 is switched off based on the output signal from the seat heater switch 32 (step S3: NO). Then, the control circuit 28 ends the program processing shown in the flowchart of FIG. 4 and performs normal active control as described below.

  That is, the control circuit 28 operates the drive motor 24 based on a signal output from the vehicle information output device 36 in accordance with the traveling state of the vehicle, and moves the movable side support portion 26 to an imaginary line L2 (two-dot chain line) in FIG. From the open state (OPEN) as shown by (3), it is operated from the neutral state (NORMAL) as shown by the solid line in FIG. 3 or from the closed state (CLOSE) as shown by the imaginary line L1 (one-dot chain line) in FIG.

  For example, when a signal indicating that the vehicle is traveling at a low speed and traveling on a straight road is output from the vehicle information output device 36, the control circuit 28 indicates the movable side support portion 26 by a solid line in FIG. As described above, the degree of restraint on the seated occupant is increased by operating in a neutral state (NORMAL). When the vehicle information output device 36 outputs a signal indicating that the vehicle is traveling at a high speed and traveling on a road with continuous curves, the control circuit 28 causes the movable side support unit 26 to As shown by the imaginary line L1 (one-dot chain line), the closed state (CLOSE) is operated to increase the degree of restraint on the seated occupant. When a signal indicating that the vehicle is stopped is output from the vehicle information output device 36, the movable side support portion 26 is opened as shown by an imaginary line L2 (two-dot chain line) in FIG. OPEN) to reduce the degree of restraint on the seated occupant.

  As described above, during normal active control, the control circuit 28 operates the movable side support unit 26 based on the signal output from the vehicle information output device 36 according to the traveling state of the vehicle, and restricts the seated occupant. Increase or decrease.

  Then, the control circuit 28 performs program processing shown in the flowchart of FIG. 4 every time an activation signal is input from a vehicle central control device (not shown), for example.

  On the other hand, when the seat occupant is turning on the seat heater switch 32 in order to warm the seat, a switch-on signal is output from the seat heater switch 32 to the control circuit 28. When the control circuit 28 detects a switch-on signal from the seat heater switch 32, the control circuit 28 operates the seat heater 30 and raises the temperature of the contact portion (that is, the seat surface) with the seated occupant of the movable side support portion 26.

  For example, when the seat heater switch 32 is turned on when the program processing shown in the flowchart of FIG. 4 is started, the seat heater switch 32 switches on to the control circuit 28 as described above. Is output. Therefore, in this case, the control circuit 28 determines that the seat heater switch 32 is switched on based on the output signal from the seat heater switch 32 (step S3: YES).

  Subsequently, when it is determined that the seat heater switch 32 is switched on (step S3: YES), the control circuit 28 detects a temperature detection signal from the seat temperature detection sensor 34 (step S4). Based on this temperature detection signal, it is determined whether or not the temperature (seat surface temperature) of the contact portion of the movable side support portion 26 with the seated occupant is lower than a predetermined temperature (step S5). In this example, it is determined whether the temperature is lower than 10 ° C. as an example.

  Then, when the control circuit 28 determines that the temperature of the contact portion of the movable side support portion 26 with the seated occupant is lower than a predetermined temperature based on the temperature detection signal from the seat temperature detection sensor 34 (step S5: NO), it returns to the process of the above-mentioned step S3, and the temperature of the contact part with the seated occupant of the movable side support part 26 is not less than a predetermined temperature based on the temperature detection signal from the seat temperature detection sensor 34. Until the determination is made, the processes in steps S3 to S5 are repeated.

  On the other hand, the control circuit 28 repeatedly performs the processing of the above-described steps S3 to S5, based on the temperature detection signal from the seat temperature detection sensor 34, the contact portion of the movable side support portion 26 with the seated occupant. When it is determined that the temperature is equal to or higher than a predetermined temperature (step S5: NO), the program processing shown in the flowchart of FIG. 4 is terminated and normal active control is performed.

  That is, the control circuit 28 operates the drive motor 24 based on a signal output from the vehicle information output device 36 in accordance with the traveling state of the vehicle, and moves the movable side support portion 26 to an imaginary line L2 (two-dot chain line) in FIG. From the open state (OPEN) as shown by (3), it is operated from the neutral state (NORMAL) as shown by the solid line in FIG. 3 or from the closed state (CLOSE) as shown by the imaginary line L1 (one-dot chain line) in FIG.

  As described above, in the vehicle seat device 10 according to the present embodiment, when the occupant is restrained by the movable side support portion 26, the temperature at which the contact portion of the movable side support portion 26 with the seated occupant is previously comfortable for the seated occupant (this book In the example, the temperature is adjusted to 10 ° C. or higher as an example. Therefore, for example, when the temperature of the room is low in winter or the like, even when the occupant is restrained by the movable side support portion 26 for the first time after getting on, the occupant in contact with the movable side support portion 26 does not feel cold. As a result, the occupant can be restrained accurately by the movable side support part without causing discomfort to the occupant.

  Further, in the vehicle seat device 10 according to the present embodiment, the movable side support portion 26 until the temperature of the contact portion of the movable side support portion 26 with the seated occupant reaches a predetermined value (in this example, until it reaches 10 ° C. as an example). The degree of restraint on the seated occupant is low. Thus, before the temperature of the contact portion of the movable side support portion 26 with the seated occupant reaches a temperature at which the seated occupant is comfortable, for example, the degree of restraint of the movable side support portion 26 with respect to the seated occupant is increased, causing discomfort to the seated occupant. Can be prevented and passenger comfort can be improved.

  Next, a modified example of the vehicle seat device 10 according to the first embodiment of the present invention will be described.

  In the above embodiment, the temperature of the contact portion of the movable side support portion 26 with the seated occupant is detected by the seat temperature detection sensor 34, and the movable side support portion 26 is operated by the control circuit 28 based on the detection result. However, it may be as follows.

  That is, the temperature of the contact portion with the seated occupant of the movable side support portion 26 is predicted based on the temperature detected by the inside air temperature sensor and the elapsed time since the ignition switch is turned on, and the control circuit 28 based on the prediction result. The movable side support portion 26 may be configured to be operated. In this case, the temperature according to the present invention is provided by means for predicting the temperature of the contact portion of the movable side support portion 26 with the seated occupant based on the temperature detected by the inside air temperature sensor and the elapsed time since turning on the ignition switch. A detection means is configured.

  Moreover, in the said embodiment, it comprised so that the temperature of the contact part with the seated occupant of the movable side support part 26 might be heated with the seat heater 30, and a seated occupant was restrained by the movable side support part 26 only when this temperature became more than predetermined temperature. It is configured to perform (normal active control is performed), but may be configured as follows.

  That is, the temperature of the contact portion of the movable side support portion 26 with the seated occupant is cooled by, for example, a cooling device such as a Peltier element as a temperature control means, and the movable side support portion 26 does not start until this temperature falls below a predetermined temperature. It may be configured to restrain the seated occupant (perform normal active control).

[Second Embodiment]
Hereinafter, the vehicle seat apparatus 50 (refer FIG. 1) which concerns on 2nd embodiment of this invention is demonstrated.

  The vehicle seat device 50 according to the second embodiment of the present invention is shown in FIG. 5 instead of the program processing shown in FIG. 4 in the control circuit 28 of the vehicle seat device 10 according to the first embodiment of the present invention. The program processing is performed, and the basic configuration thereof is the same as that of the vehicle seat device 10 according to the first embodiment of the present invention. Therefore, in the vehicle seat device 50 according to the second embodiment of the present invention, the same components as those in the vehicle seat device 10 according to the first embodiment of the present invention are denoted by the same reference numerals, and the description thereof is omitted. .

  In the vehicle seat device 50 according to the second embodiment of the present invention, when the control circuit 28 receives an activation signal output in response to, for example, starting an engine from a vehicle central control device (not shown), for example, Program processing shown in the flowchart of FIG.

  When starting the program processing shown in FIG. 5, the control circuit 28 first detects a signal output from the vehicle information output device 36 according to the traveling state of the vehicle (step S11). Based on the signal, it is determined whether or not the vehicle is stopped (step S12).

  When the control circuit 28 determines that the vehicle is stopped based on the signal from the vehicle information output device 36 in the process of step S12 (step S12: YES), the control circuit 28 functions as an operation state detection unit. An output signal from the seat heater switch 32 is detected (step S17), and it is determined whether or not the seat heater switch 32 is switched on (step S18). When it is determined that the seat heater switch 32 is switched off (step S18: NO), the movable side support portion 26 is opened as shown by an imaginary line L2 (two-dot chain line) in FIG. 3 (OPEN). (Step S19). Thereby, it will be in the state where the restraint degree with respect to the seated passenger | crew of the movable side support part 26 was reduced.

  Subsequently, the control circuit 28 ends a series of program processing by determining whether or not a processing end signal output in response to, for example, stopping the engine from a vehicle central control device (not shown) is input. It is determined whether or not to perform (step S16). If it is determined that the series of program processing is not to be ended (step S16: NO), the processing returns to the above-described step S1.

  On the other hand, if the control circuit 28 determines in the process of step S12 that the vehicle is not stopped (step S12: NO), the control circuit 28 is based on the signal from the vehicle information output device 36 detected in step S11. It is determined whether or not the vehicle is traveling on a curve, for example (step S13). When the control circuit 28 determines in the process of step S13 that the vehicle is not traveling on a curve, for example, the vehicle is traveling on a straight road, based on the signal from the vehicle information output device 36 (step S13). In S13: NO), the movable side support portion 26 is moved to the neutral state (NORMAL) as shown by the solid line in FIG. 3 (step S15).

  When the control circuit 28 determines that the vehicle is traveling on a curve, for example, based on the signal from the vehicle information output device 36 in the process of step S13 (step S13: YES), the movable side support unit 26 is operated in a closed state (CLOSE) as shown by an imaginary line L1 (dashed line) in FIG. 3 (step S14). Thereby, the restraint degree with respect to the seat occupant of the movable side support part 26 increases.

  On the other hand, the control circuit 28 determines that the vehicle is stopped based on the signal from the vehicle information output device 36 in the process of step S12 (step S12: YES), and the process of step S18. When it is determined in the processing that the seat heater switch 32 is switched on (step S18: YES), the movable side support portion 26 is opened as shown by an imaginary line L2 (two-dot chain line) in FIG. 3 (OPEN). Instead, the neutral state (NORMAL) is set as indicated by the solid line in FIG. 3 (step S15).

  That is, in this embodiment, when the seat heater switch 32 is switched off, the movable side support portion 26 is closed as shown by an imaginary line L1 (dashed line) in FIG. 3 (CLOSE) according to the traveling state of the vehicle. And a neutral state (NORMAL) as shown by a solid line in FIG. 3 and an open state (OPEN) as shown by an imaginary line L2 (two-dot chain line) in FIG. Increase or decrease the degree of restraint (operation within the first operation range).

  On the other hand, when the seat heater switch 32 is switched on, the movable side support portion 26 is closed (CLOSE) as shown by an imaginary line L1 (one-dot chain line) in FIG. As shown by the solid line 3, the degree of restraint on the seated occupant is increased or decreased by operating so as to be in a neutral state (NORMAL) (operation within the second operation range).

  As described above, in the vehicle seat device according to the present embodiment, the operation range of the movable side support portion 26 when the seat heater 30 is operating is more constrained than when the seat heater 30 is not operating. Set to the side. Thereby, during the operation of the seat heater 30, the seated occupant can be restrained by maintaining the movable side support portion 26, which is brought to a comfortable temperature by the seat heater, on the side closer to the seated occupant.

  Further, in the vehicle seat device 50 according to the present embodiment, even when the vehicle 40 is in a stopped state, the temperature of the contact portion with the seated occupant of the movable side support portion 26 is reduced, for example, because the seat heater 30 is not operating. When the temperature is not appropriate for the occupant, the seated occupant is not restrained by the movable side support portion 26. On the other hand, when the vehicle 40 is in a stopped state and the seat heater 30 is operating and the temperature of the contact portion of the movable side support portion 26 with the seated occupant is appropriate for the seated occupant, the movable side support portion 26 Restrains the seated occupant. As a result, the occupant can be restrained accurately by the movable side support portion 26 without causing discomfort to the occupant, and the comfort of the occupant during driving is improved.

  Then, the control circuit 28 determines whether or not to end the series of program processes in the process of step S16. If it is determined to end the series of program processes (step S16: YES), the series of program processes is performed. finish.

  Next, a modified example of the vehicle seat device 50 according to the second embodiment of the present invention will be described.

  In the above-described embodiment, the temperature of the contact portion of the movable side support portion 26 with the seated occupant is heated by the seat heater 30. When the seat heater switch 32 is switched off, the movable side support portion 26 is moved to the imaginary line L1 (one point in FIG. A closed state (CLOSE) as shown by a chain line), a neutral state (NORMAL) as shown by a solid line in FIG. 3, and an open state (OPEN) as shown by an imaginary line L2 (two-dot chain line) in FIG. When the seat heater switch 32 is turned on, the movable side support portion 26 is closed (CLOSE) as shown by an imaginary line L1 (dashed line) in FIG. 3, and a solid line in FIG. As described above, the operation is performed so that the neutral state (NORMAL) can be obtained. However, the operation may be performed as follows.

  That is, the temperature of the contact portion of the movable side support portion 26 with the seated occupant is cooled by, for example, a cooling device such as a Peltier element as temperature control means, and when the start switch of the cooling device is switched off, the movable side support portion 26 is As shown by an imaginary line L1 (one-dot chain line) in FIG. 3, the closed state (CLOSE), as shown by a solid line in FIG. 3, and as shown by an imaginary line L2 (two-dot chain line) in FIG. The movable side support portion 26 is closed as shown by an imaginary line L1 (dashed line) in FIG. 3 when the start switch of the cooling device is turned on (CLOSE). ) And a neutral state (NORMAL) as shown by the solid line in FIG.

  Further, in the above embodiment, it is determined whether or not the seat heater switch 32 is switched on in the process of step S18, and when it is determined that the seat heater switch 32 is switched on, the movable side support portion 26 is moved to the position shown in FIG. Although it is configured to be in a neutral state (NORMAL) as indicated by a solid line, it may be configured as follows.

  That is, for example, the temperature of the contact portion of the movable side support portion 26 with the seated occupant is detected by the seat temperature detection sensor 34, and the temperature of the contact portion of the movable side support portion 26 with the seated occupant is equal to or higher than a predetermined temperature. When it is determined that the temperature of the contact portion of the movable side support portion 26 with the seated occupant is equal to or higher than a predetermined temperature, the movable side support portion 26 is in a neutral state (NORMAL as shown by a solid line in FIG. 3). ).

1 is a block diagram illustrating an overall configuration of a vehicle seat device according to a first embodiment of the present invention. It is a front view of the vehicle seat provided in the vehicle seat device according to the first embodiment of the present invention. It is a top view explaining operation | movement of the vehicle seat provided in the vehicle seat apparatus which concerns on 1st embodiment of this invention. It is a flowchart which shows operation | movement of the vehicle seat apparatus which concerns on 1st embodiment of this invention. It is a flowchart which shows operation | movement of the vehicle seat apparatus which concerns on 2nd embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10,50 Vehicle seat apparatus 12 Vehicle seat 18 Seat back 24 Drive motor (drive means)
26 Movable side support part 28 Control circuit (control means)
30 Seat heater (temperature control means)
32 Seat heater switch (operation state detection means)
34 Seat temperature detection sensor (temperature detection means)
36 Vehicle information output device (running state detection means)

Claims (5)

A vehicle seat configured to have a movable side support portion operable to increase or decrease the degree of restraint on the seated occupant on the side portion of the seat back; and
Driving means for operating the movable side support portion such that the degree of restraint of the movable side support portion on the seated occupant is increased or decreased;
Temperature control means capable of adjusting the temperature of the contact portion with the seated occupant of the movable side support portion;
Temperature detecting means for detecting or predicting the temperature of the contact portion with the seated occupant of the movable side support portion;
Control means for operating the drive means based on the detection result or prediction result of the temperature detection means;
A vehicle seat device comprising:   The control means has a low degree of restraint on the seated occupant of the movable side support portion until the temperature of the contact portion with the seated occupant of the movable side support portion reaches a predetermined value based on the detection result or the prediction result of the temperature detecting means. The vehicle seat device according to claim 1, wherein the driving unit is operated so as to be in a state. A vehicle seat configured to have a movable side support portion operable to increase or decrease the degree of restraint on the seated occupant on the side portion of the seat back; and
Driving means for operating the movable side support portion such that the degree of restraint of the movable side support portion on the seated occupant is increased or decreased;
Temperature control means capable of adjusting the temperature of the contact portion with the seated occupant of the movable side support portion;
Traveling state detecting means for detecting the traveling state of the vehicle;
An operation state detection unit for detecting an operation state of the temperature control unit;
Control means for operating the drive means based on the detection result of the running state detection means and the detection result of the operation state detection means;
A vehicle seat device comprising:   The control means operates the drive means so that the movable side support portion operates within a first operation range based on a detection result of the running state detection means when the temperature adjustment means is not operated. On the other hand, when the temperature control means is operating, the driving means is operated so that the movable side support portion operates within a second operation range different from the first operation range. The vehicle seat device according to claim 3.   5. The second operation range is set such that a position where the degree of restraint of the movable side support portion with respect to the seated occupant is weaker than that of the first operation range is set on a side that restrains the seated occupant. The vehicle seat device described in 1.

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