JP2019093997A - Vehicle seat - Google Patents

Abstract

To provide a vehicle seat which has a simple configuration, and in which a planar heating element is hardly damaged.SOLUTION: A vehicle seat comprising a pad (seat cushion pad P1), a skin K1, and a planar heating element 100 provided between the pad and the skin K1. The pad has: a seating face part P11 which is located at a center in a longitudinal direction; a bulging part P12 which is located at left and right outer sides of the seating face part P11, and is bulged to a crewman side in order to support a side part of the crewman; and a hanging groove 30 in which the skin K1 is hung. The hanging groove 30 includes a partition part 31 which is located between the seating face part P11 and the bulging part P12, and extends in a direction orthogonal to the longitudinal direction. The planar heating element 100 has a first heater 110 which is located on the seating face part P11, a second heater 120 which is located on the bulging part P12, and a connection part 130 which connects the first heater 110 and the second heater 120 to each other. The connection part connects the first heater 110 and the second heater 120 through a portion avoiding the partition part 31.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a vehicle seat provided with a planar heating element capable of heating a seat surface.

  There is known a sheet provided with a planar heater (planar heating element) capable of heating a seat surface. In such a sheet, the planar heating element is disposed between the pad and the skin. Further, the heater is provided at a seat portion at the center in the left-right direction of the seat, and at an overhang portion projecting to the occupant side on both the left and right sides of the seat portion (Japanese Patent Application Laid-Open No. 2008-101118).

  A hanging groove is provided between the seat portion and the overhanging portion for hanging the skin of the sheet. The skin of the seat portion and the overhang portion is provided with a plastic cord which makes the sewn portion rigid, and the plastic cord is in the hanging groove. The plastic cord is hooked to a metal wire provided at the bottom of the groove by a C-shaped member, a hook, a hook-and-loop fastener or the like.

JP, 2016-185760, A

  By the way, when connecting the planar heating element of the seat portion and the planar heating element of the overhanging portion, if this connection portion is put in the hanging groove, part of the groove is made deeper so as not to interfere with the plastic cord, It is necessary to adopt a complicated configuration such as bending so as to divert the metal wire so that the connection portion is not affected by the metal wire.

  In addition, the part of the hanging groove that extends between the seat surface and the overhang and extends in the front-rear direction (in the case of a seat cushion) or in the vertical direction (in the case of a seatback) May be loaded heavily. Therefore, if the connecting portion of the heater is inserted into the hanging groove, the connecting portion may be damaged. In particular, in the case of a seat cushion, there is a high possibility that the knee can be caught when cleaning the interior of a car.

  The present invention has been made in view of the background as described above, and an object thereof is to provide a vehicle seat which is less likely to be damaged by a planar heating element with a simple configuration.

  A vehicle seat according to the present invention for solving the problems described above comprises a pad, a skin covering the pad, a resistance heating body, and a sheet-like support for supporting the resistance heating body, the pad and the skin And a planar heating element provided between the two. The pad is provided with a seat portion disposed at the center in the lateral direction, an overhang portion disposed on the left and right outside of the seat portion and projecting toward the occupant side to support the side of the occupant, and a hanging groove in which the skin is suspended. And the hanging groove includes a compartment extending between the seat and the overhang and extending in a direction perpendicular to the left-right direction, and the planar heating element is disposed on the seat. A heater, a second heater disposed in the projecting portion, and a connection portion connecting the first heater and the second heater, the connection portion passing the portion other than the partition portion, the first heater and the first heater It is characterized in that 2 heaters are connected.

  According to such a configuration, since the connection portion connecting the first heater and the second heater passes through the position avoiding the partition portion of the hanging groove, the planar heating element has a simple configuration. It is possible to provide a vehicle seat that is resistant to damage.

  In the vehicle seat described above, the pad may be a seat cushion pad, and the compartment may extend in the front-rear direction. In this case, the connection portion may connect the first heater and the second heater through the rear side of the partition portion.

  According to such a configuration, it is possible to connect the first heater and the second heater through the portion on the rear side of the partition where load is not easily applied.

  In the vehicle seat described above, the pad is a seat cushion pad, the compartment extends in the front-rear direction, and the connection part is a front side of the compartment through the front side surface of the pad and the first heater and the second A heater may be connected.

  According to such a configuration, even when the connection part passes through the front side of the partition part, it is less likely to receive a large load by passing through the front side face of the pad. In addition, when the connection portion is a heater, the calf of the occupant can be warmed, and the comfort can be improved.

  In the above-mentioned vehicle seat, the pad is a seat back pad, the compartment extends in the vertical direction, and the connection part connects the first heater and the second heater through the upper or lower side of the compartment. It is also good.

  According to such a configuration, in the seat back, the connection portion connects the first heater and the second heater through the upper side or the lower side of the partition portion, thereby passing the portion where load is difficult to be applied to the first heater. And the second heater can be connected.

  According to the present invention, since the connecting portion connecting the first heater and the second heater passes through the position avoiding the partition in the hanging groove, the planar heating element is less likely to be damaged by a simple configuration. .

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the vehicle seat which shows one Embodiment of the vehicle seat which concerns on this invention. It is a perspective view of a seat frame. It is a disassembled perspective view of a seat cushion pad, a planar heating element, and an outer_skin | epidermis. It is a figure which shows the positional relationship of a seat cushion pad and a planar heating element. It is a figure corresponded to the XX cross section of FIG. 4 of a seat cushion. It is a figure corresponded to the YY cross section of FIG. 4 of a seat cushion. It is a figure which shows the positional relationship of a seat back pad and a planar heating element. It is a perspective view which shows the seat cushion pad and planar heater which concern on 2nd Embodiment. It is a figure which shows the seat back pad and planar heater which concern on 3rd Embodiment.

First Embodiment
Hereinafter, a first embodiment of a vehicle seat according to the present invention will be described with reference to the attached drawings. The vehicle seat of the first embodiment is configured, for example, as a vehicle seat S mounted on a vehicle as shown in FIG. The vehicle seat S includes a seat cushion S1, a seat back S2, and a headrest S3.

The seat cushion S1 is disposed at the left and right center, and is disposed on both the left and the right outside of the seat surface portion S11 for supporting the buttocks and thighs of the occupant in contact from the bottom and the side of the occupant's thighs and hips It has an overhanging portion S12 projecting toward the occupant side for supporting.
Similarly, the seat back S2 is disposed at the center of the left and right, and is disposed on both the left and the right outside of the seat surface portion S21 which contacts the back of the occupant in contact with the back of the occupant and back In order to support the side portion, there is provided an overhanging portion S22 projecting toward the occupant side.

  As shown in FIG. 2, the seat frame F includes a seat cushion frame F1 and a seat back frame F2 supported by the seat cushion frame F1.

As shown in FIG. 3, the seat cushion S1 is sandwiched between a seat cushion pad P1 as an example of a pad that covers the seat cushion frame F1, a skin K1 covering the seat cushion pad P1, and the seat cushion pad P1 and the skin K1. And the planar heating element 100 provided in the closed state.
Similar to the seat cushion S1, the seat back S2 also includes a seat back pad P2 (see FIG. 7) as an example of a pad that covers the seat back frame F2, a skin K2 (see FIG. 1) covering the seat back pad P2, and a seat A planar heating element 200 (see FIG. 7) provided in a state of being sandwiched between the back pad P2 and the skin K2 is provided.

  The seat cushion pad P1 has a seat portion P11 corresponding to the seat portion S11, and an overhang portion P12 corresponding to the overhang portion S12. Specifically, the seat cushion pad P1 is disposed on the left and right sides of the seat surface portion P11 disposed at the center in the left-right direction and the seat surface portion P11, and the seat cushion pad P1 is an overhang projecting toward the occupant side to support the side portion of the occupant. And a part P12. In the upper surface of the seat cushion pad P1, a hanging groove 30 (31 to 33) into which the skin K1 is hung is formed.

  The hanging groove 30 is disposed between the seat surface portion P11 and the projecting portion P12, in a direction orthogonal to the left-right direction, in this case, two partition portions 31 extending in the front-rear direction and each rear end portion of the two partition portions 31 And a second horizontal groove 33 connecting the two partition portions 31 in the left-right direction at a position before the first horizontal groove 32. The seat cushion pad P1 also has a shallow groove 35 extending diagonally rearward from the connecting portion of the partition 31 and the first lateral groove 32 separately from the hanging groove 30. The shallow groove 35 is a groove which is shallower than the hanging groove 30 and receives the sewing allowance of the skin K1, but the skin K1 is not hung by a C-shaped member, a hook, a surface fastener or the like. The seat cushion pad P1 also has a shallow groove 36 extending downward from the front end of the partition 31 on the side surface 39 on the front side. The shallow groove 36 is also a groove that receives the seam allowance of the skin K1, but is not suspended by the C-shaped member, the hook, the surface fastener, or the like.

The planar heating element 100 includes a resistance heating element 100A (110, 120, 130) and a sheet-like support 100B supporting the resistance heating element 100A.
The resistance heating body 100A may be, for example, a finely meandering nichrome wire, a high resistance metal plate, sheet-like or cloth-like carbon, or the like. That is, as long as it is in the form of a thin sheet that can be sandwiched between the pad and the skin, the specific shape and material are arbitrary.
The support body 100B is a sheet-like thing which supports the resistance heating body 100A, and a material does not matter. For example, the support 100B is a non-woven fabric. The support 100B may be integral with the resistance heater 100A, such as when the resistance heater is impregnated in the support.

Resistance heating body 100A includes a first heater 110 disposed in seat portion P11, two second heaters 120 disposed in projecting portion P12, and connection portion 130 connecting first heater 110 and second heater 120. Have.
The first heater 110 has a front portion 111 located on the front side with respect to the second lateral groove 33, a rear portion 112 located on the rear side with respect to the second lateral groove 33, and a first heater connection portion 113 for connecting the front portion 111 and the rear portion 112. Have. The first heater connection portion 113 has a smaller width in the left-right direction than the front portion 111 and the rear portion 112.

  The second heater 120 has a long shape in the front-rear direction in accordance with the shape of the projecting portion P12.

  The connecting portion 130 connects the rear ends of the second heater 120, and connects the left and right connecting portions 131 extending longitudinally to the left and right, the central portion in the left and right direction of the left and right connecting portions 131, and the rear portion 112 of the first heater 110. And the front and rear connection portion 132. In the present embodiment, the connection portion 130 is a heater made of a resistance heating wire such as a nichrome wire, but may be a wire which has a small resistance and hardly generates heat.

  As shown in FIG. 4, the connection portion 130 connects the first heater 110 and the second heater 120 through a position avoiding the partition portion 31 of the seat cushion pad P1. Specifically, in the connecting portion 130, the left and right connecting portions 131 connect the left and right second heaters 120 through the rear side of the dividing portion 31, and the front and rear connecting portions 132 pass through between the two dividing portions 31 and The rear portion 112 of the single heater 110 is connected to the left and right connection portion 131.

  As shown in FIG. 5, a plastic cord 51 is provided at the sewn portion of the seat K11 of the skin K1 corresponding to the seat S11 and the overhang K12 of the skin K1 corresponding to the overhang S12. The plastic cord 51 is sewn together with the material of the seat portion K11 and the overhang portion K12, for example.

  Mounting members 52 are provided on the plastic cord 51 at appropriate intervals. The mounting member 52 is a C-shaped bracket and is hooked on the metal wire 53 embedded in the seat cushion pad P1. The attachment member 52 may be a hook or a hook and loop fastener. In the case of using a hook-and-loop fastener, for example, one of the hook-and-loop fasteners may be rubbed on the facing surfaces of the metal wire 53 and the plastic cord 51, respectively. Thus, the sewn portion of the seat portion K11 and the overhanging portion K12 of the skin K1 is suspended in the section 31 of the hanging groove 30. As described above, since the first heater 110 and the second heater 120 are connected through the position avoiding the dividing portion 31, the planar heating element 100 does not enter the dividing portion 31.

  As shown in FIG. 6, in the hanging groove 30 of the seat portion P11, the first horizontal groove 32 is formed deeper than the hanging groove 32A having a depth sufficient for the plastic cord 51 to enter and the hanging groove 32A. And a deep groove portion 32B. The front and rear connection portion 132 is in the deep groove portion 32B. For this reason, the interference with the front and back connection part 132 and the plastic cord 51 is suppressed. Further, in the cross section in which the deep groove portion 32B is formed, the metal wire 53 is disposed behind the deep groove portion 32B so that the metal wire 53 does not affect the front and rear connection portion 132. There is.

  Similarly, the second lateral groove 33 also includes a hanging groove 33A having a depth sufficient for the plastic cord 51 to enter, and a deep groove 33B formed deeper than the hanging groove 33A. The first heater connection portion 113 intrudes into the deep groove portion 33B. For this reason, the interference between the first heater connection portion 113 and the plastic cord 51 is suppressed. Further, in the cross section in which the deep groove portion 33B is formed, the metal wire 53 is disposed behind the deep groove portion 33B so that the metal wire 53 does not affect the first heater connection portion 113. It has become.

  As shown in FIG. 7, the sheet-like heat generating body 200 is provided on the seat back pad P2 of the seat back S2 as well as the seat cushion S1.

  The seat back pad P2 has a seat surface portion P21 disposed at the center in the left-right direction and an overhang portion P22 disposed on the left and right outer sides of the seat surface portion P21 and projected toward the occupant side to support the side of the occupant. doing. In the front surface of the seat back pad P2, a hanging groove 40 (41 to 43) into which the skin K2 is hung is formed.

  The hanging groove 40 is disposed between the seat surface portion P21 and the projecting portion P22, in a direction perpendicular to the left-right direction, in this case, two divided portions 41 extending in the vertical direction and lower end portions of the two divided portions 41 It includes a first lateral groove 42 connected in the lateral direction, and two second lateral grooves 43 connecting the two partition parts 41 in the lateral direction at a position above the first lateral groove 42.

  The planar heating element 200 has a resistance heating element 200A (210, 220, 230) and a sheet-like support 200B for supporting the resistance heating element 200A. The resistance heating body 200A can adopt the same configuration as the resistance heating body 100A, and the support 200B can adopt the same configuration as the support 100B.

  The resistance heating body 200A includes a first heater 210 disposed in the seat portion P21, two second heaters 220 disposed in the overhang portion P22, and a connection portion 230 connecting the first heater 210 and the second heater 220. Have.

  The first heater 210 is divided into a plurality of locations as in the case of the first heater 110 of the seat cushion S1, and the connection portion thereof is in the second horizontal groove 43. The configuration is the same as the seat cushion S1. I omit explanation.

  The second heater 220 has a vertically long shape in accordance with the shape of the projecting portion P22.

  The connection portion 230 connects lower ends of the second heater 220, and is an upper and lower connection connecting the left and right connection portions 231 extending longitudinally to the left, the center portion in the left and right direction of the left and right connection portions 231, and the lower portion of the first heater 210. And a unit 232. The connection portion 230 connects the first heater 210 and the second heater 220 through a position avoiding the partition 41 of the seat back pad P2. Specifically, in the connecting portion 230, the left and right connecting portions 231 pass the lower side of the dividing portion 41 to connect the left and right second heaters 220, and the upper and lower connecting portions 232 pass between the two dividing portions 41. The lower portion of the first heater 210 and the left and right connection portion 231 are connected.

  The upper and lower connecting portions 232 enter a deep groove (not shown) formed in the first lateral groove 42, as in the seat cushion S1.

  According to the vehicle seat S configured as described above, in the seat cushion S1, the connecting portion 130 connecting the first heater 110 and the second heater 120 avoids the dividing portion 31 of the hanging groove 30. Specifically, by passing through the rear side of the dividing portion 31, the planar heating element 100 is less likely to be damaged while having a simple configuration.

  In the connection portion 130, the front and rear connection portions 132 extend across the first horizontal groove 32 and enter the deep groove portion 32B, which is the same as in the related art. The first lateral groove 32 is less likely to be subjected to a large load such as a knee on the occupant, as compared to the compartment 31, so the possibility of damage to the connecting portion 130 is low. When connecting the left and right second heaters 120 and the central first heater 110 so as to cross the partition 31 as in the prior art, a deep groove is used to connect the first heater 110 and the second heater 120. Although two extra structures are required to pass the part, in the present embodiment, the structure is simplified because this structure is unnecessary.

  Further, also in the seat back S2, the connection portion 230 connecting the first heater 210 and the second heater 220 avoids the dividing portion 41 of the hanging groove 40, specifically, below the dividing portion 41. By passing through the side, the sheet-like heating element 100 is less likely to be damaged while having a simple configuration.

Second Embodiment
Next, a vehicle seat according to the second embodiment will be described.
In the second embodiment, only portions different from the first embodiment will be described, and the same portions as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment and the description thereof will be omitted.
In the seat cushion S1 of the vehicle seat of the second embodiment, the partition 331 of the hanging groove 30 extends in the front-rear direction, and extends to the rear end of the seat cushion pad P1.

  Then, in the planar heating element 400, the connection portion 430 connects the first heater 110 and the second heater 120 through the side surface 39 on the front side of the seat cushion pad P1 on the front side of the partition portion 331. Specifically, the connection portion 430 extends downward from the front end of the second heater 120, and connects the two second heaters 120 in the left-right direction across the shallow groove 36 on the front surface of the seat cushion pad P1. And an upper and lower connecting portion 432 extending downward from the front end of the first heater 110 with the same width as the first heater 110 and connected to the left and right connecting portions 431. The connection 430 is comprised of a resistive heating element, ie, a heater.

  According to the vehicle seat having the seat cushion S1 having such a configuration, the first heater 110 and the second heater 120 can have a simple configuration without receiving a large load by passing through the side surface 39 on the front side of the seat cushion pad P1. Can be connected. Also, the connection 430 can also warm the calf of the occupant, which can improve comfort.

Third Embodiment
Next, a vehicle seat according to the third embodiment will be described.
In the third embodiment, only the parts different from the first embodiment will be described, and the same parts as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment and the description will be omitted.
In the seat back S2 of the vehicle seat of the third embodiment, the partition 541 of the hanging groove 40 extends in the vertical direction, and extends to the lower end of the seat back pad P2. In addition, the hanging groove 40 includes a lateral groove 542 that connects the upper ends of the partition 541 in the left-right direction.

  In the planar heating element 600, the connection portion 630 connects the first heater 210 and the second heater 220 through the upper side of the dividing portion 541. Specifically, the connection portion 630 is a left / right connection portion 631 connecting the left and right second heaters 220 in the left / right direction, and an upper / lower connection portion connecting the upper end of the first heater 210 and the left / right direction center portion of the left / right connection portion 631 And 632. The upper and lower connection portion 632 connects the left and right connection portion 631 and the first heater 210 across the lateral groove 542.

  According to the vehicle seat having the seat back S2 having such a configuration, the connecting portion 630 passes the upper side of the dividing portion 541 to connect the first heater 210 and the second heater 220, so that the load is not easily applied. , The first heater 210 and the second heater 220 can be connected.

  Although the vehicle seat S as the embodiment of the vehicle seat according to the present invention has been described above, the vehicle seat of the present invention is not limited to the vehicle seat S of the embodiment, and the structure thereof is appropriately It can be changed.

  For example, in the above-mentioned embodiment, although the independent type seat which is adopted by the driver's seat of a passenger car is illustrated, it can also be adopted as a bench type seat which is often adopted by the backseat of a passenger car.

  In the said embodiment, although the vehicle seat of the motor vehicle was illustrated as a vehicle seat, it may be a vehicle seat of a rail vehicle, and can also be comprised as a seat for ships and aircrafts.

  In addition, the configurations described in the above-described embodiments and modifications can be implemented in combination as appropriate.

DESCRIPTION OF SYMBOLS 30 hanging groove 31 division part 39 side surface 40 hanging groove 41 division part 100 planar heating element 100A resistance heating body 100B support 110 1st heater 120 2nd heater 130 connection part 200 planar heating element 200A resistance heating body 200B support Body 210 first heater 220 second heater 230 connection portion 331 division portion K1, K2 skin P1 seat cushion pad P2 seat back pad P11, P21 seat surface portion P12, P22 overhang portion S vehicle seat

Claims (4)

With the pad,
A skin covering the pad,
A resistive heating element, and a sheet-like support for supporting the resistive heating element, and comprising a planar heating element provided between the pad and the skin;
The pad is provided with a seat portion disposed at the center in the left-right direction, an overhang portion disposed on the left and right outside of the seat portion and projecting to the occupant side to support the side of the occupant, and the skin is suspended A hanging groove, the hanging groove including a section extending between the seat portion and the projecting portion and extending in a direction perpendicular to the left-right direction;
The planar heating element is a first heater which is the resistance heating body disposed in the seat surface portion, a second heater which is the resistance heating body disposed in the projecting portion, the first heater, and the first heating element. (2) A vehicle seat having a connecting portion for connecting the heater, wherein the connecting portion connects the first heater and the second heater through a portion avoiding the partition portion. The pad is a seat cushion pad,
The partition extends in the front-rear direction,
The vehicle seat according to claim 1, wherein the connection portion connects the first heater and the second heater through a rear side of the partition portion. The pad is a seat cushion pad,
The partition extends in the front-rear direction,
2. The vehicle seat according to claim 1, wherein the connection portion connects the first heater and the second heater on a front side of the partition portion through a side surface on the front side of the pad. The pad is a seat back pad,
The compartments extend vertically,
The vehicle seat according to claim 1, wherein the connection portion connects the first heater and the second heater through the upper side or the lower side of the partition portion.

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