JP2011050580A - Seat device for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat device for a vehicle, capable of providing comfortable feel of use to an occupant seated while eliminating waste of energy consumption by heating a minimum necessary area. <P>SOLUTION: The seat device 1 for a vehicle includes a seat 10 comprising a seat cushion 2 as a seat surface on which the occupant is seated, and a seat back 3 as a backrest for the occupant. Inside the seat cushion 2 and the seat back 3 of the seat 10, a seat surface heater part 75 and a back surface heater part 82 are provided to warm the occupant seated. The seat surface heater part 75 and the back surface heater part 82 are arranged to match the shape of contact parts of the body of the occupant seated with the seat 10. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vehicular seat device including a heater for heating a seated occupant.

  2. Description of the Related Art Conventionally, there is known a vehicle seat device having a seat cushion on which an occupant is seated and a seat back serving as an occupant's backrest, which is provided with a heater device for warming the occupant's body. For example, in Patent Document 1, in order to improve symptoms such as stiff shoulders of an occupant seated in a seat device, a heater portion is provided at a seat portion that comes into contact with a portion of the occupant's body to be warmed. Thereby, when a passenger | crew sits on the said seat | sheet and operates a heater apparatus, a passenger | crew's circulation disorder etc. can be improved.

JP 2008-183209 A (paragraphs 0023 to 0026, FIGS. 1 and 2)

  By the way, in patent document 1, since the heater part is arrange | positioned only in the specific site | part for improving symptom, such as a passenger | crew's shoulder, the warmth which satisfy | fills even if a passenger | crew tries to use for heat insulation in the cold time is obtained. Absent. Although the body can be partially warmed even if the installation location is changed to keep the occupant warm, the contact area between the body and the seat is different between the upper body and the lower body when the occupant is seated on the seat. If the contact area between the body and the sheet is not sufficiently taken into consideration, it is uneconomical to heat the seat portion over the non-contact area of the body.

  The present invention has been made in view of such a point, and the object of the present invention is to provide a comfortable feeling for a seated occupant by eliminating a waste of energy consumption by minimizing a portion to be heated. An object of the present invention is to provide a vehicular seat device.

  In the first invention, a seat having a seat cushion serving as a seating surface on which an occupant sits and a seat back serving as an occupant's back, and a heater provided in at least one of the seat cushion and the seat back for heating the occupant seated The heater unit is arranged in accordance with the shape of the contact portion between the seat of the seated occupant and the seat.

  In the second invention, in the first invention, the contact portion between the heater portion and the seat is determined based on the shape of the body pressure distribution.

  In 3rd invention, it was set as the structure by which the said heater part was comprised with the heating wire in 1st or 2nd invention.

  According to the first invention, since the heater portion is disposed at the contact portion between at least one of the seat cushion and the seat back and the occupant's body, the occupant can sufficiently warm the body by the heat generated by the heater portion. . Further, since the heater portion is not provided in the portion that is not in contact with the seat and the occupant's body, it is possible to eliminate the waste of energy consumption by minimizing the portion to be heated.

  According to the second invention, since the contact portion between the seat and the occupant's body is determined based on the body pressure distribution, the boundary between the contact portion and the non-contact portion becomes clear, so that the heater portion is not disposed in a useless portion. Can be.

  According to the third invention, since the heating wire is easy to process, it is easy to form the heater portion in accordance with the shape of the contact portion.

1 is a perspective view of a vehicle seat device according to an embodiment of the present invention. It is a top view of the heater apparatus arrange | positioned at the seat cushion. It is a front view of the heater apparatus arrange | positioned by the seat back. It is the figure which showed the body pressure distribution of the seat cushion when a passenger | crew seated on the vehicle seat apparatus. It is the figure which showed the body pressure distribution of the seat back when a passenger | crew seated on the vehicle seat apparatus.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiment is merely exemplary in nature.

  FIG. 1 shows a vehicle seat device 1 according to an embodiment of the present invention. The seat device 1 is disposed inside a vehicle and seated by an occupant, and is installed on a floor panel (not shown). The vehicle seat apparatus 1 includes a seat 10 having a seat cushion 2 constituting a seat surface and a seat back 3 serving as a backrest of a passenger, a headrest 4 positioned above the seat back 3, and an interior of the seat cushion 2. The first heater device 7 that warms the lower body of the occupant, the second heater device 8 that is provided inside the seat back 3 and warms the upper body of the occupant, and a start signal and a stop signal to the seat heater 75 and the rear heater 82 described later A heater switch 5 (shown in FIGS. 2 and 3) that can output a signal, and a heater control unit 6 (FIG. 2) that controls power supply and power stop to a seating surface heater unit 75 and a backside heater unit 82 described later. 3).

  The seat cushion 2 has a frame (not shown) which is a skeleton of the seat cushion 2 and a substantially rectangular cushion material 21 provided so as to cover the frame. Further, the seat back 3 includes a frame (not shown) which is a skeleton of the seat back 3 and a substantially rectangular cushion material 31 provided so as to cover the frame.

  As shown in FIG. 1, the first heater device 7 is embedded in a portion of the seat cushion 2 close to the skin on the seating surface side of the cushion material 21. As shown in FIG. 2, the first heater device 7 includes a buttock side temperature adjustment unit 71 that forms a portion that heats the buttock, a thigh side temperature adjustment unit 73 that forms a portion that heats the thigh, and the buttock side temperature adjustment unit. 71 and two connecting portions 72 that connect the crotch side temperature adjusting portion 73 to each other. A substantially rectangular through hole 74 a is formed at a substantially central portion of the first heater device 7. In addition, U-shaped concave portions 74b and 74c are cut out on both sides of the through hole 74a of the first heater device 7 in the vehicle width direction, and a connecting portion 72 is formed between the through hole 74a. It has become.

  In the first heater device 7, a seat surface heater portion 75 is disposed on a main body portion 74 that is a main body portion of the first heater device 7. The main body 74 is made of, for example, a polyurethane foam layer laminated on a fibrous base material such as a nonwoven fabric. Moreover, the seat surface heater part 75 consists of heating wires, such as a nichrome wire, and is sewn on the base material of the main-body part 74, or is joined to the base material with the adhesive agent. The seat heater 75 is connected to a heater switch 5 and a heater controller 6 disposed at appropriate positions inside the vehicle, and an activation signal is output to the heater controller 6 by the operation of the occupant's heater switch 5. Then, electric power is supplied to the seat surface heater unit 75 by the heater control unit 6, and the seat surface heater unit 75 generates heat. On the other hand, when a stop signal is output to the heater control unit 6 by operating the heater switch 5, the supply of electric power from the heater control unit 6 to the seat surface heater unit 75 is stopped, and the heat generation of the seat surface heater unit 75 is stopped. It is like that.

  The seat heater 75 is disposed in the main body 74 in a substantially symmetrical shape with the vehicle width direction center of the main body 74 as the center. The shape of the main body portion 74 is arranged so as to meander in the form of a pleat in the half of one side in the vehicle width direction from the buttocks side temperature adjustment portion 71 through the connecting portion 72 to the crotch side temperature adjustment portion 73. At this time, the shape of the range in which the seat surface heater portion 75 is disposed is the same as the shape of the range of the body pressure distribution D1 when the occupant shown in FIG. That is, as shown in FIG. 2, the contact portion between the occupant's buttocks and the seat cushion 2 when the occupant is seated from the body pressure distribution D1 is determined as the buttocks contact range R1, and is matched to the shape of the buttocks contact range R1. A seat heater 75 is disposed. Similarly, the contact portion between the occupant's thigh and the seat cushion 2 when the occupant is seated from the body pressure distribution D1 is determined to be the thigh contact range R2, and the seat heater 75 is matched to the shape of the thigh contact range R2. It is arranged. Therefore, since the seat surface heater portion 75 is disposed at the contact portion between the seat cushion 2 and the occupant's body, the lower body of the occupant is sufficiently warmed by the seat surface heater portion 75. Further, since the seat heater 75 is not provided in the portion between the thigh when the occupant is seated or the portion located on the rear side of the buttocks, the portion to be heated is kept to a minimum and the energy is reduced. It is possible to eliminate wasteful consumption.

  On the other hand, the 2nd heater apparatus 8 is embed | buried under the part near the skin of the backrest side of the cushion material 31 as shown in FIG. As shown in FIG. 3, in the second heater device 8, a back heater 82 is disposed on a substantially rectangular plate-shaped main body 81.

  The main body 81 of the second heater device 8 is made of the same material as the main body 74 of the first heater device 7. Similarly to the seat heater 75, the back heater 82 is made of a heating wire such as a nichrome wire and controlled by the heater switch 5 and the heater controller 6, and is sewn to the base material of the main body 81. It is fixed by. The rear heater portion 82 is formed substantially symmetrically about the center in the vehicle width direction of the main body portion 81, and the shape of the back heater portion 82 is a pleat from the lower side to the upper side in one half of the main body portion 81 in the vehicle width direction. It is arranged in a meandering manner. At this time, the shape of the range in which the rear heater portion 82 is disposed is the same as the shape of the range of the body pressure distribution D2 of the seat back 3 when the occupant is seated as shown in FIG. That is, as shown in FIG. 3, the contact portion between the occupant's back and the seat back 3 is determined as the back contact range R3 from the body pressure distribution D2, and the rear heater unit 82 is arranged in accordance with the shape of the back contact range R3. It is installed. Therefore, since the back heater 82 is disposed at the contact portion between the seat back 3 and the occupant's body, the upper body of the occupant is sufficiently warmed by the back heater 82. In addition, since the back heater 82 is not provided in a portion where the seat back 3 and the back of the occupant are not in contact with each other, such as a rear portion around the occupant's waist and a portion between the scapulae, By minimizing it to the minimum, waste of energy consumption can be suppressed.

  As described above, according to the vehicle seat device 1 according to the embodiment of the present invention, the seat heater portion 75 and the rear heater portion 82 are arranged at the contact portion between the seat cushion 2 and the seat back 3 and the occupant's body. Thus, the occupant can sufficiently warm his / her body by the heat generated by the seat heater 75 and the back heater 82, and can obtain a comfortable feeling of use. Further, since the seat heater portion 75 and the rear heater portion 82 are not provided in the portion where the seat cushion 2 and the seat back 3 are not in contact with the occupant's body, the heating portion is minimized and energy is saved. Wasteful consumption can be suppressed.

  Further, since the contact portion between the seat 10 and the occupant's body is determined based on the body pressure distributions D1 and D2, the boundary between the contact portion and the non-contact portion becomes accurate, and the seat heater portion 75 and the rear heater portion are used as wasted portions. 82 can be omitted.

  Moreover, since the seat surface heater part 75 and the back surface heater part 82 are comprised with the heating wire, it is easy to form the seat surface heater part 75 and the back surface heater part 82 according to the shape of a contact part.

  In the embodiment of the present invention, the heating wire is used for the seat heater 75 and the back heater 82. However, a pipe or the like for allowing the heat medium to pass may be provided.

  Moreover, what is necessary is just to set the space | interval of the pleated part of the seat surface heater part 75 and the back surface heater part 82 arbitrarily.

  The shape of the seat heater 75 and the back heater 82 need not be pleated, but may be any shape that can cover the range of the contact portion between the body and the seat device 1.

  In the above-described embodiment, the case where the present invention is applied to a seat device for one person has been described. However, the present invention can also be applied to a seat device in which two people can sit side by side, for example.

  The present invention is suitable for a vehicle seat device in which a heater for heating a seated occupant is provided inside the seat.

DESCRIPTION OF SYMBOLS 1 Vehicle seat apparatus 2 Seat cushion 3 Seat back 10 Seat 75 Seat surface heater part 82 Back surface heater part D1 Body pressure distribution D2 Body pressure distribution R1 Thigh contact area R2 Thigh contact area R3 Back contact area

Claims (3)

A vehicle comprising: a seat cushion that serves as a seat surface on which an occupant sits; a seat having a seat back that serves as a back of the occupant; and a heater that is provided inside at least one of the seat cushion and the seat back and that warms the occupant seated. Seat device for
The vehicle seat device according to claim 1, wherein the heater portion is arranged in accordance with a shape of a contact portion between a seat of a seated occupant and the seat. The vehicle seat device according to claim 1,
The vehicle seat device, wherein a contact portion between the heater unit and the seat is determined by a shape of a body pressure distribution. The vehicle seat device according to claim 1 or 2,
The vehicle seat device according to claim 1, wherein the heater portion is constituted by a heating wire.

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