JP2008273243A - Vehicle seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle seat capable of feeding a charged substance in a vicinity of a seated occupant. <P>SOLUTION: In the vehicle seat installed in a cabin, a purifying means for feeding a charged substance having the purifying characteristic of the air environment is provided so as to feed the charged substance forward of a seatback from a blow-out opening formed in an upper end of a front side of the seatback or in a front side of a headrest. Further, the purifying means has a substance generation unit for generating the charged substance by the discharge phenomenon, and the substance generation unit is installed behind a pad member constituting a seat face of the seatback. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vehicle seat installed in a vehicle interior.

  Conventionally, in vehicles, air purification devices that purify the air in the passenger compartment are generally installed, but in recent years, as air purification devices, odor components floating in the air, wall surfaces in the passenger compartment, etc. It is known to employ a device that generates nanometer-sized charged fine particle water (so-called nano ions) having a purification property for removing odorous components adhering to the surface. For example, Patent Documents 1 and 2 below disclose an example in which an air purification device that generates nano ions is installed in an air conditioning unit, or an example in which the air purification device is installed in an upper part of an instrument panel or a pillar in a vehicle cabin. .

  In addition, as disclosed in, for example, Patent Document 3 below, the vehicle interior that employs a plasma cluster system that generates ion particles having positive and negative charges, which are supposed to provide sterilization, deodorization, and refreshing effects. Air cleaning devices are known.

JP 2006-151046 A JP 2006-111227 A Japanese Patent Laying-Open No. 2005-075233

  By the way, unless the charged substance directly interferes with the object to be purified, its effect cannot be sufficiently exerted. Therefore, in order to efficiently purify the air environment around the seated occupant, it is desirable to supply the charged substance from the vicinity of the seated occupant as much as possible.

  The present invention has been made in view of the above technical problem, and an object thereof is to provide a vehicle seat capable of supplying a charged substance in the vicinity of a seated occupant.

  Accordingly, in the invention according to claim 1 of the present application, in the vehicle seat installed in the vehicle interior, a purification means for supplying a charged substance having a purification characteristic of the air environment is provided in the vicinity of the seated occupant. It is characterized by.

  Further, the invention according to claim 2 of the present application is the invention according to claim 1, wherein the purifying means supplies the charged substance to the front of the seat back from the upper end of the front of the seat back or the blow-off opening provided on the front of the headrest. It is characterized by supplying.

  Further, the invention according to claim 3 of the present application is the invention according to claim 1, wherein the purifying means supplies the charged substance to the rear side of the seat back from the blowing opening provided on the upper portion of the rear surface of the seat back or the rear surface of the headrest. It is characterized by supplying.

  Furthermore, the invention according to claim 4 of the present application is the invention according to claim 2, wherein the purification means has a substance generating part that generates a charged substance by a discharge phenomenon, and the substance generating part is It is characterized by being installed behind the pad member that constitutes the seating surface of the seat back.

  Furthermore, the invention according to claim 5 of the present application is the invention according to any one of claims 1 to 4, wherein the purification means generates a charged substance having deodorizing characteristics, The charged substance is supplied while increasing the generation amount of the charged substance when not seated, while the charged substance is supplied while regulating the generation amount of the charged substance while the occupant is seated. It is a thing.

  Furthermore, in the invention according to claim 6 of the present application, in any one of the inventions according to claims 1 to 5, the purifying unit may be configured so that a predetermined part of a seat back or a headrest is supplied from a substance generation unit that generates a charged substance. And a duct that leads to a blow-off opening formed in the shape of the bellows. The duct is formed in a bellows shape and is held so as to extend in the front-rear direction of the vehicle.

  Furthermore, in the invention according to claim 7 of the present application, in any of the inventions according to claims 1 to 6, an acoustic speaker is provided in the vicinity of the outlet opening of the purifying means, A sound having a frequency characteristic opposite to the phase of the abnormal sound is generated based on the frequency characteristic of the abnormal sound generated in the substance generation unit that generates the charged substance when the purification means is operated. It is.

  According to the first aspect of the present invention, since the purifying means is provided in the vicinity of the seated occupant, the charged substance can be supplied in the vicinity of the seated occupant.

  Further, according to the invention according to claim 2 of the present application, since the charged substance is supplied to the front of the seat back from the upper end of the front of the seat back or the blowout opening provided on the front of the headrest, A charged substance can be supplied.

  Furthermore, according to the invention according to claim 3 of the present application, since the charged substance is supplied to the rear of the seat back from the blowing opening provided on the upper portion of the rear surface of the seat back or the rear surface of the headrest, On the other hand, the charged substance can be supplied from a short distance.

  Furthermore, according to the invention according to claim 4 of the present application, since the substance generation unit that generates the charged substance by the discharge phenomenon is installed behind the pad member that constitutes the seating surface of the seat back, the substance generation The pad member can absorb the abnormal noise generated by the discharge phenomenon at the portion, and the noise to the seated occupant in front of the seat back can be reduced.

  Furthermore, according to the invention according to claim 5 of the present application, when the occupant is not seated, the charged substance having the deodorizing characteristic is supplied while its generation amount is increased, so that the deodorizing property of the seat seat surface is improved. Can be made. For example, when a device that generates a charged substance by discharge is used as the purifying means, the charged substance is supplied while its generation amount is regulated while the occupant is seated. It is possible to eliminate the possibility that the generated abnormal noise causes discomfort to the seated occupant.

  Still further, according to the invention according to claim 6 of the present application, when the seated occupant is pressed against the seat back or the headrest, for example, at the time of acceleration or rear-end collision of another vehicle, and interferes with the outlet opening. However, since the bellows-like duct contracts in the front-rear direction of the vehicle, it is possible to suppress a sense of discomfort for the occupant and to prevent the duct from being damaged. Furthermore, since the duct has a bellows shape, it is also possible to expect an effect of absorbing abnormal noise generated when the charged substance is generated.

  Further, according to the invention of claim 7 of the present application, the phase of the abnormal sound is reversed based on the frequency characteristic of the abnormal sound generated in the substance generating unit that generates the charged substance when the purification means is operated. Since the sound having the frequency characteristic of the phase is emitted from the acoustic speaker, it is possible to reduce the possibility that the abnormal noise generated in the substance generation unit causes discomfort to the seated occupant. In addition, since the acoustic speaker is provided close to the outlet opening of the purification means, even if the position of the head of the occupant is slightly changed, it is possible to transmit a sound having an opposite phase to the occupant to the occupant. The possibility of causing discomfort to the seated occupant can be reliably reduced.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIGS. 1 and 2 are a side view and a front view, respectively, showing an enlarged configuration of a purification device incorporated in the upper portion of a seat back of a vehicle seat according to an embodiment of the present invention and the vicinity thereof. In the present embodiment, charged fine particle water (having a purification characteristic for removing odorous components floating in the air and odorous components adhering to the wall surface of the passenger compartment, etc. inside the seat back 2 constituting the vehicle seat 1 ( A purification device 10 that generates (nano ions) is incorporated. The purification device 10 generates condensed water by cooling air to a dew point or lower, and generates a nano ion from the condensed water using a discharge phenomenon, and the generated nano ions are deflated. And a small fan 10b sent to the duct D5 for the opening P2.

  The seat back 2 includes a rectangular frame body 4, a pad member 5 mainly constituting a seating surface of the seat back 2, and a cover member that forms the skin of the seat back 2 (the contour portion of the seat back 2 in FIGS. 1 and 2). ) And. The purification device 10 is held in a posture in which nano ions are blown out from the upper surface side of the main body by a bracket 9 fixed to the upper frame 4a of the frame body 4 extending in the vehicle width direction. Moreover, the purification device 10 is arrange | positioned back from the part which comprises the seat surface of the seat back 2 in the pad member 5 in the front-back direction of a vehicle.

  Further, in the seat back 2, a blowout opening 14 for blowing out nano ions generated by the purification device 10 is provided so as to open at the upper end of the front surface of the seat back. Here, two blowout openings 14 that are spaced apart from each other in the vehicle width direction are provided. As shown in FIG. 2, the two outlet openings 14 are disposed between two headrest poles 7 that extend from the lower end of the headrest 3 and are supported by a pole guide 8 that is incorporated into the seat back 2.

  As can be clearly understood from FIG. 1, the purification device 10 and the blowout opening 14 are connected via a duct 13. Here, as shown in FIG. 2, two ducts 13 are provided corresponding to each of the two outlet openings 14. Each duct 13 is formed in a bellows shape, extends upward from the upper surface of the main body of the purification device 10, and is held so as to extend in the front-rear direction of the vehicle while being surrounded by the pad member 5 in the vicinity of the seat back seat surface. Yes. During the operation of the purification device 10, the ions generated in the purification device 10 are sent to the blowout opening 14 through the duct 13 and blown from the blowout opening 14 toward the vicinity of the neck of the seated occupant P in front of the seat back 2. .

  Further, in the present embodiment, as shown in FIG. 2, a pair of acoustic speakers 21 are disposed at the upper end of the front surface of the seat back 2 in the vicinity of the blowout opening 14. Here, a pair of acoustic speakers 21 is provided between the blowing openings 14 that are spaced apart from each other in the vehicle width direction. The acoustic speaker 21 is connected to a vehicle-mounted acoustic control device 20 (see FIG. 3), and emits sound based on an audio signal output from the acoustic control device 20.

  FIG. 3 is a block diagram showing an electrical configuration related to controlling the purification device 10. The purification device 10, the operation unit 11 for the purification device 10, and an occupant seating sensor 12 that detects the seating state of the occupant in the vehicle are electrically connected to the ECU 30. The ECU 30 outputs a control signal to the purification device 10 in response to a signal input from the operation unit 11 or the occupant seating sensor 12, and controls it.

  As a method for controlling the operation of the purification device 10, a manual mode and an auto mode are set. These modes can be arbitrarily switched. In the manual mode, the purification device 10 can be manually operated, for example, via an operation unit 11 such as an on / off switch built in the instrument panel, while in the auto mode. The purification device 10 is automatically controlled to operate based on the seated state of the passenger in the passenger compartment.

  In the present embodiment, the acoustic control device 20 that outputs an audio signal to the acoustic speaker 21 is electrically connected to the ECU 30. The acoustic control device 20 has a function (so-called noise canceling function) for detecting and analyzing abnormal noise generated in the passenger compartment and outputting a signal having an opposite phase to the abnormal noise. When the purification device 10 is operated, abnormal noise is generated due to a discharge phenomenon at the time of nano ion generation in the nano ion generation unit 10a. If this noise canceling function is used, a sound having a frequency characteristic opposite to the phase of the abnormal noise is generated. Is emitted from the acoustic speaker 21 disposed in the vicinity of the blowout opening 14, thereby reducing the unpleasant sensation caused by the abnormal noise to the occupant. As the voice control device 20, for example, an existing AV device incorporated in the instrument panel may be used, or a dedicated device may be incorporated in the seat 1, for example. Further, as the acoustic speaker 21, an existing acoustic speaker provided in the vehicle compartment may be used.

  FIG. 4 is a flowchart for the control process of the purification device 10. In this process, first, signals from various sensors are read (# 11), and it is determined whether or not an occupant is seated based on signals from the occupant seating sensor 12 (# 12). As a result, if it is determined that the occupant is seated, the process proceeds to step # 13. On the other hand, if it is determined that the occupant is not seated, the process proceeds to step # 15.

  First, in step # 13, the purification device 10 is operated weakly, that is, the applied voltage to the nanoion generation unit 10a is adjusted so that the amount of nanoion generation is regulated. When the purification device 10 is operated weakly, the abnormal noise generated in the nano ion generation unit 10a is reduced. Thereafter, the noise canceling function of the acoustic control device 20 is turned on (# 14). That is, a sound having a frequency characteristic of the opposite phase of the phase of the abnormal sound generated with the discharge phenomenon in the nano ion generation unit 10 a is emitted from the acoustic speaker 21.

Further, in step # 15, the purification device 10 is operated strongly, that is, the applied voltage to the nanoion generation unit 10a is adjusted so that the generation amount of nanoions is increased. In addition, during the strong operation of the purification device 10, an abnormal noise generated in the discharge nano ion generation unit 10a is increased. With the strong operation of such a purification device 10, the timer count is started (# 16), then whether or not a predetermined time T ₀ has elapsed (# 17). As a result, when it is determined that the predetermined time T ₀ has not elapsed, Step # 17 is repeated. On the other hand, when it is determined that the predetermined time T ₀ has elapsed, the purification device 10 is immediately processed. Is stopped (# 18). After step # 18, the process ends.

  When the purification device 10 is activated, an abnormal noise is generated in the nano ion generation unit 10a due to a discharge phenomenon. However, in this embodiment, when the seating state of the occupant is detected, the purification device 10 is operated weakly. The possibility that the sound may cause discomfort to the seated occupant can be suppressed. On the other hand, when the non-sitting state of the occupant is detected, the purification device 10 is strongly operated. Therefore, the seat surface can be efficiently deodorized by the nano ions having the deodorizing characteristics.

  In addition, in the state where the passenger | crew is seated, you may hold | maintain an operation stop state instead of operating the purification device 10 weakly. Moreover, not only a passenger | crew seating state but an engine on / off state, a door locking state, and the operating state of an air conditioning unit may be detected, and the purification device 10 may be controlled based on the detection results. For example, when the engine-off is detected, or when the unlocking of the door is detected after the engine-off is detected, the purification device 10 is strongly operated, or the operation of the air-conditioning unit is detected. Only the cleaning device 10 may be operated.

  As apparent from the above description, according to the present embodiment, the purification device 10 is provided so as to be able to blow out nano ions from the blow-out opening provided at the upper end portion of the front surface of the seat back. It is possible to supply nano ions toward the vicinity of the head. As a result, the odor component floating in the air around the seated occupant and the odor component adhering to the seat 1 can be effectively removed. In addition, hair care for seated crew can be performed with nano ions.

  Moreover, since the purification device 10 is installed behind the seat member of the seat back in the pad member 5, the noise generated by the discharge phenomenon can be absorbed by the pad member 5, and the seat in front of the seat back can be absorbed. Noise to passengers can be reduced. Further, in the present embodiment, the duct 13 is formed in an accordion shape and is held while being taken in by the pad member 5 on the front side thereof, so that noise to the seated occupant in front of the seat back is more effectively reduced. be able to. Furthermore, the duct 13 is formed in a bellows shape and is held so as to extend in the front-rear direction of the vehicle, so that the seated occupant is pressed against the seat back 2 at the time of acceleration or a rear collision of another vehicle, for example. Even in the case of interference with the blowout opening 14, the duct 13 contracts in the front-rear direction of the vehicle, so that the passenger can be prevented from feeling uncomfortable and the duct 13 can be prevented from being damaged.

  Furthermore, since the purification device 10 is operated weakly so as to supply nano ions while regulating the amount of nano ions generated while the occupant is seated, the noise generated due to the discharge phenomenon is not generated by the occupant. The possibility of causing pleasure can be reduced. On the other hand, since the purification device 10 is strongly operated in a state where no occupant is seated, the seat seat surface can be efficiently deodorized by nano ions having deodorizing characteristics.

  Furthermore, when the purification device 10 is operated, a sound having a frequency characteristic opposite to the phase of the abnormal sound is emitted from the acoustic speaker 21 based on the frequency characteristic of the abnormal sound generated in the nano ion generation unit 10a. It is possible to reduce the possibility that abnormal noise causes discomfort to the seated occupant. In addition, since the acoustic speaker 21 is provided close to the blowout opening of the purification device, even if the position of the head of the occupant is slightly changed, a sound having an opposite phase to the phase of the abnormal sound can be transmitted to the occupant. The possibility of causing discomfort to the seated occupant can be reliably reduced.

  In the above-described embodiment, in order to supply nano ions to the passenger in front of the seat back, the blowout opening 13 is provided on the front surface of the seat back. For example, in order to supply nano ions to the passenger in the rear of the seat back, The blowout opening may be provided so as to open on the rear surface of the seat back 2 or the headrest 3. FIG. 5 shows a vehicle seat provided with a blowout opening 44 that opens at the upper portion of the rear surface of the seat back as an example of such a configuration. Here, the bellows-like duct 43 extends upward from the upper surface of the main body of the purification device 10 and is held so as to extend in the front-rear direction of the vehicle while being surrounded by the pad member 5 in the vicinity of the rear surface of the seat back. For example, in a two-row seat vehicle, when the blowout opening 44 of the purification device 10 is provided in the seat back 2 of the front seat 1, when the purification device 10 is operated, the rear seat or a passenger seated on the rear seat is approached. Nano ions will be supplied from a distance.

  Furthermore, without being limited to this, the blowout opening may be provided on each of the front surface and the rear surface of the seat back 2. In this case, nano ions can be simultaneously supplied to seated passengers in the front seat and the rear seat. Further, the blowout opening may be provided on the front surface or the rear surface of the headrest 3 instead of being provided on the front surface or the rear surface of the seat back 2.

  It should be noted that the present invention is not limited to the illustrated embodiments, and it goes without saying that various improvements and design changes can be made without departing from the scope of the present invention. For example, the nano ion generation unit 10a is not limited to a type that uses a discharge phenomenon at the time of nano ion generation, and other types such as a type that uses ultraviolet rays, a type that uses tourmaline, or ceramics may be employed. The charged substance generator is not limited to the purification device 10 that generates nano ions, and a plasma cluster system that generates ion particles having positive and negative charges may be employed.

It is a side view which expands and shows the structure of the purification | cleaning device integrated in the seat back of the vehicle seat which concerns on embodiment of this invention, and its vicinity. It is a front view which expands and shows the structure of the said purification device and its vicinity. It is a block diagram which shows the electrical structure relevant in controlling the said purification | cleaning device. It is a flowchart about the control process of the said purification device. It is a side view which expands and shows the structure of the purification | cleaning device integrated in the seat back of the vehicle seat which concerns on another embodiment of this invention, and its vicinity.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vehicle seat, 2 ... Seat back, 3 ... Headrest, 10 ... Purification device, 10a ... Nano ion production | generation unit, 10b ... Fan, 11 ... Operation part, 12 ... Passenger seat sensor, 13, 43 ... Duct, 14, 44 A blowout opening, 20 an acoustic control device, 21 an acoustic speaker, 30 an ECU, P a seated occupant.

Claims (7)

In the vehicle seat installed in the passenger compartment,
A vehicle seat characterized in that a purification means for supplying a charged substance having a purification characteristic of an air environment is provided in the vicinity of a seated occupant.   2. The vehicle seat according to claim 1, wherein the purifying means supplies the charged substance to the front of the seat back from an upper end of the front of the seat back or a blow-off opening provided on the front of the headrest.   2. The vehicle seat according to claim 1, wherein the purifying means supplies the charged substance to the rear side of the seat back from a blowout opening provided on the upper portion of the rear surface of the seat back or the rear surface of the headrest.   The purification means includes a substance generation unit that generates a charged substance by a discharge phenomenon, and the substance generation unit is installed behind a pad member that constitutes a seating surface of the seat back. Item 3. The vehicle seat according to Item 2.   The purifying means generates a charged substance having a deodorizing characteristic, and supplies the charged substance while increasing the generation amount of the charged substance in a state where the occupant is not seated, while the occupant is seated. The vehicle seat according to any one of claims 1 to 4, wherein the charged substance is supplied while regulating a generation amount of the charged substance in a state.   The purifying means has a duct that leads from a substance generation unit that generates a charged substance to a blowout opening formed in a predetermined part of the seat back or the headrest, and the duct is formed in a bellows shape and extends in the front-rear direction of the vehicle. The vehicle seat according to claim 1, wherein the vehicle seat is held as described above.   An acoustic speaker is provided in the vicinity of the blowing opening of the purification means, and the acoustic speaker is based on the frequency characteristics of abnormal noise generated in the substance generation unit that generates the charged substance when the purification means is operated. The vehicle seat according to any one of claims 1 to 6, wherein the vehicle seat emits a sound having a frequency characteristic opposite to the phase of the abnormal sound.

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