Vehicle seat

Abstract

To obtain a vehicle seat which can heat a portion, which is spaced away from the vehicle seat, of a body of an occupant while inhibiting increase in power consumption.SOLUTION: A vehicle seat 10 includes: an occupant support part (a seat back 12) for supporting a body of a seated occupant; and a heater part 16 detachably attached to the occupant support part. The heater part 16 heats at least one of a shoulder and a neck of the seated occupant in a state that the heater part 16 is removed from the occupant support part and is hung on at least one of the shoulder and the neck of the seated occupant.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a vehicle seat. [Background technology]

[0002] Patent Document 1 below discloses a vehicle seat that can heat a portion of an occupant's body that is distant from the vehicle seat. The vehicle seat described in this document is equipped with a heater device that is disposed in a portion of the vehicle seat that is not in contact with the occupant's body when the occupant is seated in the vehicle seat. The heater device is equipped with a radiant heater that radiates radiant heat toward the body of the occupant seated in the vehicle seat. This makes it possible to heat a portion of the occupant's body that is distant from the vehicle seat. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2020-059368 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the configuration described in Patent Document 1 above is useful from the viewpoint of being able to warm parts of the occupant's body that are away from the vehicle seat, but it is thought that power consumption will increase when heating parts of the occupant's body that are away from the vehicle seat.

[0005] In consideration of the above, an object of the present invention is to provide a vehicle seat that can warm parts of the occupant's body that are distant from the vehicle seat while suppressing an increase in power consumption. [Means for solving the problem]

[0006] The vehicle seat of the first aspect comprises an occupant support portion that supports the body of a seated occupant, and a heater portion that is removably attached to the occupant support portion and that can be removed from the occupant support portion and placed around at least one of the shoulders and neck of the seated occupant, warming the portion of the shoulders or neck of the seated occupant that is placed around it.

[0007] In the vehicle seat of the first aspect, the body of a seated occupant is supported by an occupant support portion. A heater portion is detachably attached to the occupant support portion. The heater portion can be detached from the occupant support portion and can be placed around at least one of the shoulders and neck of the seated occupant. This allows the heater to warm the portion of the seated occupant around which the heater portion is placed. In this way, the vehicle seat of the first aspect allows the heater portion to be closer to at least one of the shoulders and neck of the seated occupant than in a configuration in which the heater portion cannot be detached from the occupant support portion. As a result, an increase in power consumption of the heater portion can be suppressed. In other words, the vehicle seat of the first aspect can warm portions of the occupant's body that are distant from the vehicle seat (occupant support portion) while suppressing an increase in power consumption of the heater portion.

[0008] A vehicle seat according to a second aspect is the vehicle seat according to the first aspect, wherein the heater portion is fixed to the occupant support portion using a mechanical fixing member.

[0009] In the vehicle seat of the second aspect, the heater portion is fixed to the occupant support portion by a mechanical fixing member, which makes it possible to suppress displacement of the heater portion relative to the occupant support portion.

[0010] A vehicle seat according to a third aspect is the vehicle seat according to the first aspect, wherein the heater portion is fixed to the occupant support portion by a magnetic fixing member that uses the magnetic force of a magnet.

[0011] In the vehicle seat of the third aspect, the heater is fixed to the occupant support portion by a magnetic fixing member that uses the magnetic force of a magnet. In this configuration, the heater can be easily removed from the occupant support portion by pulling the heater in the opposite direction from the occupant support portion.

[0012] A fourth aspect of the vehicle seat is the vehicle seat of the first aspect, wherein a portion of the heater portion is fixed to a portion of the occupant support portion using a mechanical fixing member, and another portion of the heater portion is fixed to another portion of the occupant support portion using a magnetic fixing member that uses the magnetic force of a magnet.

[0013] In a fourth aspect of the vehicle seat, a portion of the heater portion and a portion of the occupant support portion are fixed using a mechanical fixing member. This configuration can prevent the portion of the heater portion from shifting relative to the portion of the occupant support portion. Furthermore, in the fourth aspect of the vehicle seat, another portion of the heater portion and another portion of the occupant support portion are fixed using a magnetic fixing member that uses the magnetic force of a magnet. This configuration can easily remove the other portion of the heater portion from the other portion of the occupant support portion by pulling the other portion of the heater portion in the opposite direction from the other portion of the occupant support portion. [Effects of the Invention]

[0014] The vehicle seat according to the present invention has the excellent effect of being able to warm parts of the occupant's body that are distant from the vehicle seat while suppressing an increase in power consumption. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a perspective view of a vehicle seat according to an embodiment of the present invention, seen from the front side, showing a state in which a heater unit is attached to a seat back. [Figure 2] 1 is a perspective view of a vehicle seat according to an embodiment of the present invention, seen from the front side, showing a state in which a heater unit is removed from a seat back. [Figure 3] FIG. 10 is a perspective view showing a state in which the heater portion is hung on the shoulders and neck of a seated occupant. DETAILED DESCRIPTION OF THE INVENTION

[0016] 1 to 3, a vehicle seat 10 according to an embodiment of the present invention will be described. In the drawings, the arrow FR indicates the front side of the seat, the arrow UP indicates the upper side of the seat, the arrow LH indicates the left side in the seat width direction, and the arrow RH indicates the right side in the seat width direction. In the following description, unless otherwise specified, when referring to front-rear, up-down, and left-right directions, these refer to front-rear in the seat front-rear direction, up-down in the seat up-down direction, and left-right in the seat width direction.

[0017] 1, a vehicle seat 10 of this embodiment includes a seat back 12 that supports the back of a seated occupant from the rear, a headrest 14 that supports the head of the seated occupant from the rear, and a heater unit 16 attached to the seat back 12. The seat back 12 and the headrest 14 form an occupant support unit that supports the body of the seated occupant.

[0018] The heater section 16 is attached to the front surface of the upper portion 12A of the seat back 12. The heater section 16 is formed in a sheet shape, and its surface is made of cloth, synthetic leather, or the like. A flexible substrate that can be easily deformed in the thickness direction is provided inside the heater section 16, and a conductive pattern that generates heat when electricity is applied is formed on this flexible substrate. When this conductive pattern generates heat, almost the entire heater section 16 heats up.

[0019] The heater unit 16 includes a central heater unit 16A that forms the center of the seat width direction when attached to the upper portion 12A of the seat back 12, and a pair of left and right extending heater units 16B that extend outward in the seat width direction from both sides of the upper portion of the central heater unit 16A in the seat width direction. When viewed from the front, the central heater unit 16A has a semicircular shape with a curved lower end. Each of the pair of left and right extending heater units 16B extends so as to slope upward as it extends outward in the seat width direction. The ends of the pair of left and right extending heater units 16B opposite the central heater unit 16A are gently curved.

[0020] The heater portion 16 described above is fixed to the upper portion 12A of the seat back 12 using the mechanical fixing members 18 at four locations and the magnetic fixing members 20 at seven locations.

[0021] The mechanical fastening member 18 in this embodiment is, for example, a type called a jumper hook or snap button, and includes a first fastening member 18A and a second fastening member 18B that engages with the first fastening member 18A. When the first fastening member 18A and the second fastening member 18B are engaged, their mutual elastic force maintains the engaged state. In this embodiment, two first fastening members 18A are fixed to the upper end of the central heater unit 16A while spaced apart in the left-right direction. In addition, two first fastening members 18A are fixed to the upper end of each of the pair of left and right extended heater units 16B, opposite the central heater unit 16A. Four second fastening members 18B corresponding to the four first fastening members 18A fixed to the heater unit 16A are fixed to the front surface of the upper portion 12A of the seat back 12.

[0022] The magnetic fixing member 20 of this embodiment includes a magnetic member 20A and a magnet 20B that attracts the magnetic member 20A. The magnetic member 20A is attracted to the magnet 20B, thereby maintaining a fixed state between the heater unit 16 and the upper portion 12A of the seat back 12 at the location where the magnetic fixing member 20 is provided. In this embodiment, five magnetic members 20A are fixed to the end of the central heater unit 16A while being spaced apart from each other. In addition, two magnetic members 20A are fixed to the lower end of each of the pair of left and right extension heater units 16B, opposite the central heater unit 16A. Seven magnets 20B corresponding to the seven magnetic members 20A fixed to the heater unit 16 are fixed in a buried state along the front surface of the upper portion 12A of the seat back 12.

[0023] (Actions and Effects of This Embodiment) Next, the operation and effects of this embodiment will be described.

[0024] In the vehicle seat 10 of the present embodiment described above, the back of the seated occupant is supported from the rear by the seat back 12, and the head of the seated occupant is supported from the rear by the headrest 14. In the vehicle seat 10 of the present embodiment, the heater unit 16 is detachably attached to the front of the upper portion 12A of the seat back 12.

[0025] To use the heater unit 16, a seated occupant first removes the heater unit 16 from the front of the upper portion 12A of the seat back 12, as shown in FIG. 2 . Specifically, the first locking member 18A is disengaged from the second locking member 18B by applying a force greater than the elastic force required to maintain the engagement between the first locking member 18A and the second locking member 18B. In this manner, the heater unit 16 is released from the four mechanical fixing members 18. Furthermore, the magnet 20B is pulled away from the magnetic member 20A by applying a force greater than the force with which the magnetic member 20A is attracted by the magnet 20B. In this manner, the heater unit 16 is released from the seven magnetic fixing members 20. Note that the wiring 22 indicated by the reference numeral 22 in FIG. 2 is a wiring for supplying power to the heater unit 16. This wiring 22 extends from the seat back 12.

[0026] Next, as shown in FIG. 3 , the heater unit 16 is placed around the shoulders P1 and neck P2 of the seated occupant P. As a result, the central heater unit 16A of the heater unit 16 is positioned to cover the neck of the seated occupant P from the rear side, with the center being the vertebrae P3 of the seated occupant P, and the pair of left and right extending heater units 16B of the heater unit 16 are positioned to wrap around the upper surfaces of the shoulders P1 of the seated occupant P from the rear side to the front side. As such, in the vehicle seat 10 of this embodiment, the heater unit 16 can be positioned closer to the shoulders P1 and neck P2 of the seated occupant P than in a configuration in which the heater unit 16 cannot be removed from the seat back 12. As a result, an increase in power consumption of the heater unit 16 can be suppressed. In other words, in the vehicle seat 10 of this embodiment, it is possible to warm the body parts of the seated occupant P that are distant from the seat back 12 (the shoulders P1 and neck P2) while suppressing an increase in power consumption of the heater unit 16.

[0027] 1 and 2, in this embodiment, the heater unit 16 is fixed to an upper portion 12A of the seat back 12 using four mechanical fixing members 18 and seven magnetic fixing members 20. In this configuration, the four mechanical fixing members 18 can prevent the heater unit 16 from shifting relative to the seat back 12. Furthermore, by using the seven magnetic fixing members 20 as the remaining fixing locations, the heater unit 16 can be easily removed from the seat back 12.

[0028] In this embodiment, an example has been described in which the heater unit 16 is fixed to the upper portion 12A of the seat back 12 using four mechanical fixing members 18 and seven magnetic fixing members 20, but the present invention is not limited to this. For example, all of the fixing points of the heater unit 16 may be configured to use the mechanical fixing members 18, or all of the fixing points of the heater unit 16 may be configured to use the magnetic fixing members 20.

[0029] In addition, in the present embodiment, an example has been described in which the heater unit 16 covers both the shoulders P1 and the neck P2 of the seated occupant P, but the present invention is not limited to this. For example, the heater unit 16 may cover either the shoulders P1 or the neck P2 of the seated occupant P.

[0030] The above describes one embodiment of the present invention, but the present invention is not limited to the above, and it goes without saying that it can be implemented in various other modified forms within the scope of the gist of the present invention. [Explanation of symbols]

[0031] 10 Vehicle seats 12 Seat back (passenger support part) 16 Heater section 18 Mechanical fixing members 20 Magnetic fixing member

Claims

1. an occupant support portion that supports the body of a seated occupant; a heater unit that is detachably attached to the occupant support portion, and that is detached from the occupant support portion and hung around at least one of the shoulders and the neck of the seated occupant to warm the part of the shoulders and the neck of the seated occupant that is hung around it; A vehicle seat comprising:

2. 2. The vehicle seat according to claim 1, wherein the heater portion is fixed to the occupant support portion by a mechanical fixing member.

3. 2. The vehicle seat according to claim 1, wherein the heater portion is fixed to the occupant support portion by a magnetic fixing member using the magnetic force of a magnet.

4. a part of the heater portion is fixed to a part of the occupant support portion using a mechanical fixing member; 2. The vehicle seat according to claim 1, wherein the other part of the heater portion is fixed to the other part of the occupant support portion by a magnetic fixing member using the magnetic force of a magnet.

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