JP2009247650A - Vehicle diet device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle diet device for allowing a person who uses a car daily to take a diet easily and continuously. <P>SOLUTION: In the vehicle diet device 100, in either a sheet 1 having a body contact part in contact with the body of the occupant seated in a seat 1 of the vehicle or a webbing 6 of the sheet 1 or both of them, a predetermined body contact part out of body contact parts is a load transmission part, and load drive parts 2 and 3 which drive the load transmission part so that the load transmission part vibrates or pressurizes the body of the occupant are provided. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a diet apparatus for a vehicle capable of performing a weight reduction action called a diet while riding on the vehicle.

JP 2007-283004 A

  It is already widely known that obesity is a cause of various diseases. In recent years, visceral fat-type obesity called “metabolic syndrome” has also been regarded as a problem. For this reason, some people go to gyms and work on diets in earnest, while others try to improve food and limit diet rather than exercise. In recent years, there have been proposals for various exercise equipment as a diet device (Patent Document 1). Numerous diet foods and diet exercises are already available. Some examples have become hit products and have spread throughout the country.

  However, a major problem when working on a diet is that it does not last long. In other words, no matter how interesting and easy it is to work on a diet menu, it is difficult to establish it as a daily routine, and in many cases it is often thrown out along the way due to weakness of one's own will.

  The subject of this invention is providing the diet apparatus for vehicles which can tackle a diet easily and continuously with respect to the person who uses a vehicle daily.

Means for Solving the Problems and Effects of the Invention

In order to solve the above problems, a vehicle diet device according to the present invention includes:
Either or both of the seat having a body contact portion that contacts the body of an occupant seated on a vehicle seat and the seat belt of the seat, a predetermined body contact portion of the body contact portion is used as a load transmission portion, It is characterized by comprising a load driving unit that drives the load transmitting unit to vibrate or pressurize the body of the passenger.

  According to the configuration of the present invention, a load for causing the occupant to consume calories is given only by sitting on the seat of the vehicle. As a result, the occupant is forced to perform a reflection operation to resist this, and as a result, consumes calories. In other words, if you use a car on a daily basis, you can go on a diet by simply getting on the car, so you can work on a diet on a regular basis, for example, when commuting.

  In the present invention, the load transmission portion can be provided on the seat belt. Since the seat belt is always attached while the vehicle is in operation, the occupant can go on a diet while driving the vehicle without feeling an extra operation burden.

  Further, the load transmission portion can be provided on a lap belt that is mounted on the seat belt so as to cross the front side of the occupant. Since the abdomen is more prone to fat than the chest, etc., applying a vibration or pressure to the lap belt part instead of the shoulder belt part can provide a greater diet effect and hardly affect the upper body. Specifically, the load drive unit is provided at either or both end positions of the lap belt, and the lap belt is driven from the end of the lap belt so as to vibrate or press the occupant's body. do it. In this case, the load driving unit may be configured to include a vibrator so that vibration is transmitted from the end of the lap belt to the center.

  When the seat belt is used as a load transmission unit, the load driving unit is a driving unit that repeatedly increases and decreases the tightening force of the seat belt, and the seat belt is vibrated by repeatedly increasing and decreasing the tightening force. May be.

  Further, the load transmitting unit can be configured as the load driving unit itself. In this case, the load driving unit is attached so as to be movable along at least the seat belt, and can be configured to drive the occupant's body so that the load driving unit directly drives the load driving unit. As a result, the user can arbitrarily determine the location where the load is applied. For example, if it is provided on the lap belt, it can be arranged at the center position of the lap belt so that the load driving portion is at the center of the abdomen. Thereby, a larger diet effect can be obtained. In this case, the load driving unit can be provided as including a vibrator.

  On the other hand, the load driving unit may pressurize the occupant's body instead of vibrating the occupant's body. For example, it is possible to pressurize the occupant's body by providing a load driving unit at the end of the seat belt and driving the load driving unit to increase the tension of the seat belt. In this case, the vibration sound or the like is not bothered, and the body does not vibrate.

  Further, the load transmission unit can be provided on the seat. In this case, the load driving unit can also be provided on the seat, and the load driving unit can be driven to vibrate or pressurize the back of the occupant's body restrained by the seat belt. According to this configuration, since the load transmitting portion can be provided over a wider range than in the case of the seat belt, a greater diet effect can be obtained.

  By the way, in the present invention, the drive level setting means for variably setting the drive level of the load drive unit so that the load on the occupant's body can be varied, and the load drive unit is driven based on the set drive level. Drive control means for controlling can be provided. According to this configuration, the drive level of the load drive unit can be switched as necessary.

  The drive level setting means sets an upper limit for the amount of change in the drive level of the load drive unit within a predetermined time, and can set the drive level so as not to exceed the upper limit. As a result, it is possible to avoid overloading the occupant's body due to a sudden change in the drive level.

  The drive level setting means can set the drive level within a range from a predetermined maximum drive level to a minimum drive level. As a result, it is possible to prevent a driving level from setting an excessive load on the occupant and to prevent unnecessary driving at a driving level that does not affect calorie consumption.

  In the present invention, load level detecting means for detecting the current load level given to the occupant by driving the load driving unit can be provided. The drive level setting means can variably set the drive level based on the detected current load level. According to this configuration, since the driving level can be adjusted according to the load that the occupant is currently receiving, for example, if the current load places a relatively large burden on the occupant, this can be reduced. You can increase this if you have a small burden that the occupant does not care at all.

  Note that the load level detection means can be biometric information detection means for detecting, as a load level, biometric information that reflects the influence of the load of an occupant who is given a load by driving the load drive section. Loads have different ways of feeling depending on the person, and gradually become tighter as time passes. Therefore, if the current load level felt by the occupant can be grasped by monitoring the biological information as in the above configuration, this is reflected in the drive control of the load drive unit, and the load is appropriate for the occupant. Can be adjusted to level. As biometric information, one or more of electrocardiogram, heartbeat, pulse, sweating, respiratory rate, and body temperature can be used. Further, the biological information detection means is provided in any one or more of the seat seat portion, the seat back, the seat armrest, the seat belt, the steering, and the seat peripheral operation portion in a position where the occupant seated on the seat can operate. be able to.

  In the present invention, target load level setting means for setting a target load level for a load given to the occupant by driving the load driving unit can be provided. The drive level setting means in this case can calculate and set the drive level to be set next based on the difference between the set target load level and the detected current load level. As a result, the load applied to the occupant can be controlled so as to approach the target load level, and a constant load can be continuously applied to the occupant.

  The target load level setting means can set the target load level based on the operation input content to the target load level setting operation unit provided in the vehicle interior. For example, if the target load level can be manually set in a plurality of stages such as strong, medium, and weak, it becomes possible to set the load level according to the user.

  Hereinafter, an embodiment of a diet device for a vehicle according to the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing the configuration of the vehicle diet device of the present invention. The vehicle diet apparatus 100 of FIG. 1 includes a seat driving unit 2 provided on the seat 1 and a seat belt driving unit 3 provided on a seat belt corresponding to the seat 1 with respect to the seat ECU 10 that forms the main control unit. The load level detection unit (load level detection means) 4 for detecting the current load level given to the occupant by driving the drive units 2 and 3 and the load applied to the occupant sitting on the seat 1 A target load level setting operation unit 5 for setting a target level (target load level) is connected.

  In the present embodiment, the seat driving unit 2 (2A to 2D), the seat belt driving unit 3 (3A to 3D), and the load level detection unit are provided for all the seats 1 (1A to 1D) provided in the vehicle. 4 (4A to 4D) and a target load level setting operation unit 5 (5A to 5D) are provided. In these symbols, A to D that follow are indicative of the corresponding relationship with the seat 1 (1A to 1D). In this embodiment, A is a door for a driver seat, B is a door for a passenger seat, C corresponds to the rear left door and D corresponds to the rear right door. When generically referring, A to D are omitted.

  FIG. 2 is a perspective view schematically showing the arrangement of the drive units 2 and 3 provided on the seat 1 and the seat belt.

  The seat belt in the present embodiment is a well-known belt-like safety device that restrains an occupant's body from the seat and prevents the occupant from being thrown out of the seat and injured. In this embodiment, it is a well-known three-point seat belt device, and the webbing 6 of the seat belt is used in the form of being pulled out from a retractor portion 7a having a slip joint as a belt insertion port. One end portion of the webbing 6 is locked to a retractor winding shaft (not shown) having a force limiter (not shown) in the retractor portion 7a, and an intermediate portion thereof is an upper portion of the center pillar or a seat back portion of the seat 1. Folded downward via a slip joint fixed to the shoulder of the shoe. The winding shaft is always biased in the winding rotation direction of the webbing 6 by the biasing force of the spring member. On the other hand, the other end is locked to an anchor plate (not shown) in the anchor portion 7c. A tongue plate (not shown) is attached to an intermediate portion of the webbing 6 between the anchor plate and the winding shaft. The tongue plate is attached in such a manner that the webbing 6 is inserted through its insertion hole, and is slidable along the webbing 6. The webbing 6 is pulled out from the retractor portion 7a, and the tongue plate is locked to the buckle portion 7b disposed on the side of the seat portion 1a, whereby the tongue plate is supported by the buckle, and the occupant wears a seat belt. It becomes a state. In this seat belt wearing state, the first belt section portion (hereinafter referred to as a shoulder belt) 6b between the slip joint of the webbing 6 and the tongue plate (buckle portion 7b) restrains the upper body of the occupant and also the webbing 6 A second belt section (hereinafter referred to as a lap belt) 6a between the tongue plate (buckle portion 7b) and the anchor plate 7c restrains the occupant's waist.

  Note that the seat belt in the present invention is not limited to the three-point seat belt device as long as the seat belt restrains the occupant in accordance with the regulations in the mounted state.

  The seat belt drive unit 3 is an actuator for driving the webbing 6 and applying a load for calorie consumption to the occupant seated on the seat 1. In the present embodiment, it is a vibrator (vibration generating means) arranged in contact with the end portion of the webbing 6 locked to the anchor plate in the anchor portion 7c. When the seat belt driving unit 3 is driven, vibration is transmitted to the webbing 6, and vibration is transmitted to the body of the occupant sitting on the seat 1 via the body contact portion (load transmission unit) 30 of the webbing 6. More specifically, the vibration generated in the seat belt drive unit 3 is greatly vibrated near the drive unit 3, and the vibration is attenuated farther away. Therefore, the body contact portion (load transmission unit) 30 of the lap belt 6a is mainly used. The vibration is transmitted to the body of the occupant sitting on the seat 1.

  The buckle of the buckle portion 7b can be made of a damping material such as rubber, resin, damping steel plate, damping alloy or the like. Thereby, vibration transmission to the shoulder belt 6b can be suppressed, and only the lap belt 6a can mainly vibrate the occupant's body.

  The seat drive unit 2 is an actuator for applying a load for calorie consumption to a passenger sitting by driving the seat 1. In this embodiment, it is an electric pressurization means provided in the backrest part 1b of the seat 1, and it passes through the seat cushion which makes the body contact part (load transmission part) 30 with respect to the passenger | crew who leans against the backrest part 1b. Pressurize the back in shape. Specifically, a rotating shaft that is rotatably supported by a seat back frame built in the backrest portion 1b, and a cam member that is attached to the rotating shaft so as to be integrally rotatable, the outer peripheral surface of which is the backrest portion 1b. Rotation of the pressing member constituting the cam member, comprising a pressing member arranged in contact with the seat cushion covering the front surface and the back surface side, and a motor for driving the rotating shaft around its axis. Accordingly, the seat cushion covering the surface of the backrest portion 1b is pressed in such a way as to form a protrusion on the surface from the back side, and the protrusion (pressing portion) is leaned against the backrest portion 1b in a cycle reflecting the shape. It is designed to pressurize the back.

  3-5 is the figure which showed simply arrangement | positioning of the load level detection part 4 provided in the position which the passenger | crew can contact around the seat | sheet 1. FIG. FIG. 2 is a perspective view schematically showing the arrangement of the load level detection unit 4 provided on the seat 1, and FIG. 3 shows the arrangement of the load level detection unit 4 provided on the steering wheel 11 in a simplified manner. FIG. 4 is a diagram schematically showing the arrangement of the load level detection unit 4 provided in the operation unit around the seat 1.

  The load level detection unit 4 is a sensor (biological information detection unit) that detects, as a load level, biometric information that reflects the influence of the load on the occupant who is loaded by driving the drive units 2 to 3. The biometric information here can be electrocardiogram, heartbeat, pulse, sweating, respiratory rate, body temperature, etc. The load level detection unit 4 for detecting them is the seat 1a of the seat 1 and the back of the seat 1. 1b, the armrests 1d and 1d of the seat 1, the body contact portion of the seat belt, the steering 11, and the seat peripheral operation portion 12 at a position where the occupant seated on the seat 1a can operate.

  As shown in FIG. 3, the load level detection unit 4 of the present embodiment is provided on the seat 1 a, the backrest 1 b, and the armrest 1 d of the seat 1.

  The load level detection part 4a of the seat part 1a and the load level detection part 4b of the backrest part 1b are well-known humidity sensors and are provided in the vicinity of the surface of the seat cushion, and detect the sweating level of the occupant sitting on the seat 1. To do.

  The load level detection unit 4b of the backrest 1b is a pressure sensor. Specifically, it is a piezoelectric film sensor that detects a change in pressure on the back of an occupant in contact with it as a signal (back biosignal). Since this back biological signal includes waveform components such as a heartbeat signal, a pulse wave signal, and a respiratory signal, these can be extracted to detect a heartbeat, a pulse, a respiratory rate, and the like.

  The load level detectors 4d and 4d of the armrests 1d and 1d are metal electrodes for detecting an electrocardiogram signal and a heartbeat signal. The electrocardiogram signal and the heartbeat signal are for detecting an electrocardiogram signal by simultaneously contacting both the electrodes 4d and 4d provided on the paired left and right armrests. By detecting the potential difference generated between the electrodes, it is possible to measure the driver's electrocardiogram signal and heartbeat signal (see JP 2000-14653 A).

  Note that the load level detection unit 4d does not detect an electrocardiogram signal or a heartbeat signal, but may be a detection unit for detecting a pulse wave signal. In this case, the load level detection unit 4d can be a well-known optical reflective sensor including a light emitting element (for example, a light emitting diode) and a light receiving element (photodiode). 4d is touched or moved close to the hand), the light reflected by the small arterioles is detected by the light receiving element, and the change in the amount of received light is detected as a pulse wave signal.

  Specifically, the irradiated light is absorbed by hemoglobin in the blood flowing through small arterioles (capillary arteries) partially passing through the inside of the human body, and the remaining light is small. The light is reflected and scattered by the arteriole, and a part of the light enters the light receiving element. At this time, since the amount of hemoglobin in the small arterioles changes in a wave manner due to blood pulsation, the light absorbed in the hemoglobin also changes in a wave manner. As a result, the amount of received light that is reflected by the small arteriole and detected by the light receiving element changes, and the change in the amount of received light is detected as a pulse wave signal (for example, a voltage signal).

  In addition, as shown in FIG. 4, the load level detection part 4 which detects an electrocardiogram signal and a heartbeat signal can be provided also in the steering wheel 11 of a vehicle in the seat which a driver | operator sits. The load level detection unit 4 is provided as a pair of metal electrodes on the left and right of the ring part 11a of the steering wheel 11 and the spoke part 11b that forms a connection part between the ring part 11a and the central boss part 11c, for example. Can do. As a result, it is possible to measure the driver's electrocardiogram signal and heartbeat signal by detecting the potential difference generated between the electrodes when the vehicle driver grips each electrode section with his / her left and right hands. In the present embodiment, the load level detection unit 4f is arranged so as to be distributed to the left and right of the ring portion 11a of the steering wheel 11, and more specifically, as shown in FIG. 4B, the outer peripheral surface of the steering wheel. On the driver seat side surface. This position is the part where the base of the thumb with the thinnest skin is easily touched in the driver's hand when the driver grips the left and right sides of the steering wheel. The measurement accuracy of biological information can be improved.

  Moreover, the detection part 4f which detects an electrocardiogram signal and a heartbeat signal is comprised as a metal electrode (counter electrode) 4f1 and 4f2 which each make a pair, and is mutually opposingly arranged by the non-contact form. As a result, it is possible to identify the electrode in contact with the occupant. Accordingly, an electrode having the best contact state between the electrode and the hand can be selected. Further, when the counter electrode 4f is provided on the steering wheel 11, it is desirable that both the electrodes 4f1 and 4f2 are attached to the outer peripheral side of the ring portion 11a and at the position on the driver's seat side. This makes it easier to grip the electrodes 4f1 and 4f2.

  In addition, the detection unit (electrode) 4 that detects an electrocardiogram signal and a heartbeat signal cannot be detected unless both the left and right hands are in contact with different counter electrodes 4f. For example, only the steering wheel 11 is used. Instead, the other detection unit (electrode) 4 may be provided on the operation unit 12 that can be operated by the passenger sitting on the seat 1 in the seated state. That is, it is possible to detect an electrocardiogram signal and a heartbeat signal by placing one hand on the steering wheel 11 and the other hand on the operation unit 12. The operation unit 12 may be any operation unit as long as it is a contact operation type. For example, it is desirable that the operation unit 12 be operated in a form of being in contact with a hand for a long time, such as a haptic device. In FIG. 5, a detection unit (electrode) 4 h that detects an electrocardiogram signal and a heartbeat signal is provided on a support 12 b that indicates an operation knob (here, a trackball) 12 a of the haptic device 12. The haptic device 12 is also provided with a detection unit 4i that detects a pulse wave signal in the same manner as described above.

  Further, the load level detection unit 4 for detecting the pulse wave signal can also be provided on the steering wheel 11 of the vehicle in the seat on which the driver is seated. For example, the load level detection unit 4 is provided on the ring portion 11a and the spoke portion 11b of the steering wheel 11. Can be provided. Here, as shown to (a) of FIG. 4, the detection part 4g which detects a pulse wave signal by the method similar to the above is provided in the spoke part 11b.

  The target load level setting operation unit 5 is an operation unit provided in the vehicle interior in order to set a target load level (target load level) for a load applied to the occupant by driving the driving units 2 to 3 in a plurality of stages. (Target load level setting operation section). In this embodiment, it is provided in the side surface of the seat part 1a, and can set the load level of three steps, strong, medium, and weak. The ECU 10 can switch the drive levels of the drive units 2 to 3 based on these settings.

  The ECU 10 has a known configuration including a CPU, a ROM, a RAM, and the like. Further, it is configured such that necessary information such as vehicle speed information can be acquired from other control units and detection units via the communication means (in-vehicle LAN) 50.

  By the way, in this invention, ECU10 can set the drive level of the drive parts 2 and 3 so that a load to a passenger | crew's body can be varied (drive level setting means), and it can be set to the set drive level. Based on this, the drive units 2 and 3 can be driven and controlled (drive control means). However, although the drive level can be arbitrarily set by a user's manual operation to a predetermined operation unit, in the present embodiment, the current level of the occupant detected by the load level detection unit 4 The drive level is variably set based on the load level. As a result, the drive level is adjusted according to the load that the occupant is currently receiving.

  Hereinafter, a process for driving and controlling the drive units 2 and 3 provided on the seat 1 and the webbing 6 of the seat belt will be described with reference to flowcharts and process flow diagrams of FIGS. 6 and 7. This process is performed in such a manner that the CPU executes a program stored in a predetermined storage unit of the ECU 10.

  In S1, ECU10 acquires the predetermined biological information in which the influence of the load accompanying driving the drive parts 2 and 3 is reflected. The biological information can be acquired as a detection result of the load level detection unit 4, and the detection results of all the load level detection units 4 may be acquired and used in the following processing. It is assumed that only heartbeat information is acquired. Here, it is assumed that the detection result of the load level detection unit 4b (piezoelectric film sensor) provided in the backrest 1b is acquired. The ECU 10 receives the detected biological waveform signal (back biological signal), extracts and amplifies a heartbeat signal reflecting the heartbeat from this signal, and counts the heart rate based on the heartbeat signal. Thus, the current heart rate (the heart rate counted within a predetermined reference time (for example, 1 minute)) is measured.

  In S2, ECU10 acquires a target load level. Since ECU10 has memorize | stored the target load level set by the target load level setting operation part 5 in its predetermined memory | storage part, it acquires a target load level by reading this. In addition, the target load level in this embodiment determines how much load level is given to the passenger | crew who gives load. That is, it does not uniquely determine the drive levels (drive parameters) of the drive units 2 and 3, but only to determine how much the occupant's biological information (load level) detected in S1 is to be used. is there. The target load level here is set in the form of a target value of heart rate (target heart rate). If the target load level is set to “strong”, for example, the target heart rate is set to 120, If it is set to “medium”, the target heart rate is set to 100, for example, and if it is set to “weak”, the target heart rate is set to 80, for example. In addition, since only the heartbeat is required as the biological information in the present embodiment, the configuration other than the detection unit 4 for acquiring the heartbeat may be omitted.

  In S3, the ECU 10 acquires the current drive level. In the present embodiment, the drive level is a set value of drive parameters such as the frequency and amplitude of the drive units 2 and 3 and the pressurizing pressure, and is stored in the ECU 10 for each of the drive units 2 and 3. Here, the drive level is acquired by reading the set values of the drive parameters stored in the ECU 10.

  In S4, a drive level to be set next is calculated and set based on the difference between the target load level acquired in S2 and the current load level of the occupant acquired in S1. Here, the drive levels of the drive units 2 and 3 to be executed are determined so that the current load level of the occupant acquired in S1 matches the target load level acquired in S2. Specifically, the next load level is calculated by using the difference from the current load level of the occupant acquired in S1 as a load change amount and adding this to the current load level, and the corresponding drive unit A few drive levels (drive parameter setting values) are determined.

  However, in this embodiment, in order to suppress a sudden change in the drive level, a limit is provided on the load change amount added to the current load level. Specifically, an upper limit value and a lower limit value (abrupt change guard value) of the load change amount are set in the form shown in FIG. 8, and a load change exceeding or below these values is prohibited. If the difference between the target load level acquired in S2 and the current load level of the occupant acquired in S1 is out of the load change allowable range defined by the upper limit value and lower limit value of these load change amounts, forced An upper limit value or a lower limit value is set as the load change amount.

  In S4, upper and lower limits are also set for the determined drive level, and the drive level assumed to have an excessive influence on the body or the drive level assumed to have an excessive influence on the body. Cannot be set (see FIG. 9). Even if the current load level of the occupant acquired in S1 is far from the target load level, if a change amount that exceeds the upper and lower limits of this drive level is set, the setting is invalidated. The upper and lower drive levels are determined.

  In S5, the drive units 2 and 3 are driven and controlled based on the determined drive level (frequency, amplitude, and pressure). Although this process ends at S5, this process is repeated at a predetermined cycle. For this reason, drive control at the drive level determined in S4 is continuously performed while waiting for the arrival of the next cycle, and a new drive level is set as S4 of the next cycle arrives.

  Although one embodiment of the present invention has been described above, this is merely an example, and the present invention is not limited to this, and the knowledge of those skilled in the art can be used without departing from the spirit of the claims. Various modifications based on this are possible.

  For example, the seat belt drive unit 3 is provided in the anchor part 7c in the above embodiment, but may be provided in the retractor part 7a and the buckle part 7b.

  In the above-described embodiment, the seat belt drive unit 3 is configured as a vibrator and transmits the generated vibration to the seat belt, thereby vibrating the occupant's body. The configuration may be such that the body of the occupant is vibrated. Specifically, a retracting mechanism including a motor or the like for retracting the webbing 6 of the seat belt is provided in any or a plurality of the retractor portion 7a, the buckle portion 7b, and the anchor portion 7c, and thereby the retracting / releasing operation is performed. You may perform in the form which repeats the drive. As this pull-in mechanism, for example, a pre-pretensioner mechanism that is driven so as to remove the slack of the webbing 6 of the seat belt in conjunction with a brake operation or collision detection can be used, or it can be equipped separately.

  Moreover, in the said embodiment, although the seatbelt drive part 3 applied a vibration to a passenger | crew, you may load a passenger | crew with a pressurization. In this case, for example, the above-described retraction mechanism may be provided, and the retraction mechanism may be driven to continuously retract the webbing 6 with a predetermined retraction force so as to maintain the increased tension of the webbing 6. Good.

  In the above-described embodiment, the seat driving unit 2 is provided only on the backrest 1b, but a similar pressurizing unit may be provided on the seat 1a. Further, a vibrator may be provided in the backrest portion 1b and the vibration may be applied to the back of the occupant in the same manner as the seat belt driving portion 3, and similarly, a vibrator is provided in the seat portion 1a of the seat 1. Thus, the vibration may be applied to the occupant's buttocks.

  Further, it is sufficient that at least one of the seat driving unit 2 and the seat belt driving unit 3 is provided.

  By the way, in above-mentioned embodiment, the detection part 4 which detects a heart rate is utilized as the load level detection part 4 which detects a passenger | crew's present load level, and based on the detected heart rate, the drive parts 2 and 3 In addition to this, the pulse, sweat, respiratory rate, body temperature, etc. are detected, and the drive control of the drive units 2 and 3 based on one or more of these (see FIG. 6 and 7) may be executed.

  When a pulse is used as the biological information, a load level detection unit 4 (for example, reference numeral 4b) that acquires the occupant's pulse information is used. Specifically, in the process of FIG. 6, first, in S1, based on the detection result of the detection unit 4, the current pulse rate (the pulse rate counted within a predetermined reference time (for example, 1 minute)) is calculated. In step S2, a target load level determined using a parameter called the pulse rate is acquired. In S3 to S5, the next drive level is determined based on the difference between the load levels and the current drive level of the drive units 2 and 3, and the drive units 2 and 3 are determined based on the determined drive level. Drive control.

  The same applies to the case where sweating is used as the biological information. The load level detection unit 4 (for example, reference numerals 4a and 4c) that acquires the sweating information of the occupant is used. In the process of FIG. Based on the detection result, the current humidity between the occupant's body and the seat is measured, and in S2, a target load level determined using a parameter called humidity is obtained. The process of S3-S5 is the same as the above.

  The same applies to the case where the respiratory rate is used as the biological information. In the process of FIG. 6, the current respiratory rate (predetermined reference time) is used based on the detection result of the detection unit 4 in S <b> 1 in the process of FIG. (Respiration rate counted within (for example, 1 minute)) is measured, and a target load level determined using a parameter called this respiration rate is acquired in S2. The process of S3-S5 is the same as the above.

  The same applies to the case where body temperature is used as biological information. The load level detection unit 4 (for example, the reference numeral 4b may be a contact-type body temperature detection unit, or a thermography may be provided in the passenger compartment to detect body temperature by image analysis) that acquires information on the body temperature of the occupant, and FIG. In the processing, at S1, the current body temperature of the occupant is measured based on the detection result of the detection unit 4, and at S2, a target load level determined by using this body temperature parameter is acquired. The process of S3-S5 is the same as the above.

  However, in any of these, as in the embodiment described above, when the next load level is determined in S4, the load change amount (the target load level and the current load level) is changed to the currently detected load level. ) Is added, a limit is imposed on the load change amount to be added (FIG. 8). Further, the upper and lower limits are set for the drive level determined in S4 as in the above-described embodiment (FIG. 9).

  In the above-described embodiment, the target load level set by the target load level setting operation unit 5 is determined as a fixed value of a parameter (biological parameter) of biological information detected by the load level detection unit 4. However, since the biometric information detected by the load level detection unit 4 has individual differences, the target load level may be determined by the target load level setting operation unit 5 according to the individual occupant. For example, when a well-known vehicle occupant authentication device is mounted on a vehicle, the occupant is specified using the vehicle occupant authentication device, and if the occupant has already registered reference biometric information (reference biometric parameter) in the predetermined storage unit of the ECU 10, the reference The target biological information (target biological parameter) may be determined by adding a certain load to the biological information. In addition, after a predetermined time has elapsed from a predetermined timing after boarding the vehicle, the load level detection unit 4 may acquire the occupant's biological information and use the acquired biological information as reference biological information. .

  By the way, in the above embodiment, the seat belt driving unit 3 transmits vibration to the seat belt and applies vibration to the occupant's body via the seat belt. However, as shown in FIG. It is good also as what was comprised so that it might vibrate and attached along the seat belt so that movement was possible. In this case, the load transmission unit 30 is configured as the seat belt driving unit 3 itself, and can vibrate the occupant's body in a form that the seat belt driving unit 3 itself drives directly. In this case, the seat belt driving unit 3 is connected to a wiring 31 having a power supply line and a signal line so that a built-in vibrator is driven so as to receive a driving voltage supply and a driving signal therefrom. It has become. Here, the seat belt driving unit 3 is movably attached to the lap belt 6a. Furthermore, as shown in FIG. 11, a clamp portion 3 a that clamps the webbing 6 is provided and is detachably attached to the webbing 6.

  Moreover, it is not necessary to provide the vehicle diet apparatus as described above on all seats. For example, only the driver's seat can be used. There is always a passenger in the driver's seat, so it can contribute to the driver's diet. Further, it may be any one of the rear seats, and may be provided only in a predetermined rear seat where a key person sits, for example. Thereby, cost reduction can be aimed at.

The block diagram which shows one Embodiment of the diet apparatus for vehicles of this invention. The seat perspective view which shows simply arrangement of the load drive part of the present invention. The seat perspective view which shows simply arrangement of the load level detection part of the present invention. The front view of the steering wheel which shows simply arrangement | positioning of the load level detection part of this invention. The perspective view of the operation part which shows simply arrangement | positioning of the load level detection part of this invention. The flowchart which shows the flow of the drive process of a load drive part. The processing flowchart which shows the flow of the drive process of a load drive part. The figure for demonstrating the restriction | limiting provided when determining the next load level. The figure for demonstrating the restriction | limiting provided when determining the next drive level. The seat perspective view which shows the arrangement | positioning different from FIG. 2 of the load drive part of this invention. The side view of the load drive part of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Diet apparatus for vehicles 1 Seat 2 Seat drive part (load drive part)
3 Seat belt drive (load drive)
4 Load level detector (load level detection means)
5 Target load level setting operation section (target load level setting means)
6 Webbing 6a Lap belt 10 ECU (drive level setting means, drive control means)
30 Body contact part (load transmission part)

Claims (18)

  In either or both of the seat having a body contact portion that contacts the body of an occupant seated on a vehicle seat and the seat belt of the seat, a predetermined body contact portion of the body contact portions is used as a load transmission portion. A vehicle diet apparatus comprising: a load driving unit that drives the load transmitting unit to vibrate or pressurize the occupant's body.   The vehicle diet device according to claim 1, wherein the load transmission unit is provided on the seat belt.   3. The vehicle diet device according to claim 2, wherein the load transmission unit is provided on a lap belt that is mounted on the seat belt so as to cross the front side of the occupant.   The load driving unit is provided at either or both ends of the lap belt, and vibrates or pressurizes the occupant's body so as to drive the lap belt from the end of the lap belt. Item 4. The vehicle diet device according to Item 3.   5. The vehicle diet device according to claim 2, wherein the load driving unit vibrates the seat belt by repeatedly increasing and decreasing the tightening force of the seat belt. 6.   The load transmission unit is the load drive unit itself, and the load drive unit is attached to be movable at least along the seat belt, and the load drive unit itself directly drives the occupant's body. The vehicle diet device according to claim 2 or 3, wherein the vehicle diet device is driven to vibrate.   The diet device for a vehicle according to claim 6, wherein the load driving unit includes a vibrator.   The said load drive part is provided in the edge part of the said seatbelt, and pressurizes the said passenger | crew's body by driving so that the tension force of the said seatbelt may be increased. Diet device for vehicles.   The load transmitting unit and the load driving unit are provided on the seat, and the load driving unit drives the back of the occupant's body restrained by the seat belt to vibrate or pressurize. Vehicle diet equipment.   Drive level setting means for variably setting the drive level of the load drive section so that the load on the occupant's body can be varied, and drive control means for driving and controlling the load drive section based on the set drive level The vehicle diet device according to any one of claims 1 to 9, further comprising:   11. The drive level setting means sets an upper limit for the amount of change in the drive level of the load drive unit within a predetermined time, and sets the drive level so as not to exceed the upper limit. The vehicle diet device described.   The vehicle diet apparatus according to claim 10 or 11, wherein the drive level setting means sets the drive level within a range from a predetermined maximum drive level to a minimum drive level. Load level detection means for detecting a current load level given to the occupant by driving the load drive unit,
The vehicle diet according to any one of claims 10 to 12, wherein the drive level setting means variably sets the drive level based on the detected current load level. apparatus. A target load level setting means for setting a target load level for a load given to the occupant by driving of the load driving unit;
The drive level setting means calculates and sets the drive level to be set next based on a difference between the set target load level and the detected current load level. Item 14. The vehicle diet device according to Item 13.   15. The vehicle diet device according to claim 14, wherein the target load level setting means sets the target load level based on an operation input content to a target load level setting operation unit provided in a vehicle interior.   The load level detection unit is a biological information detection unit that detects, as the load level, biological information that reflects the load of the occupant to which a load is applied by driving a load driving unit. 15. The vehicle diet device according to any one of 15.   The vehicle diet apparatus according to claim 16, wherein the biological information is one or more of electrocardiogram, heartbeat, pulse, sweating, respiratory rate, and body temperature.   The biological information detecting means is provided in any one or more of a seat seat portion, a seat back, a seat armrest, a seat belt, a steering, and a seat peripheral operation portion at a position where a passenger seated on the seat can operate. The vehicle diet device according to claim 17.

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