JP2015134562A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat that has a duct, which can be hardly crushed even if seating pressure is applied thereto and hardly inhibit riding comfortableness, set in a seat pad.SOLUTION: A vehicle seat 1 has an air intake duct Du serving as an air duct provided in a cushion pad 3P. The air intake duct Du is provided so that the air duct is extended in an in-plane direction (a longitudinal direction) of a supporting surface receiving seating pressure of the cushion pad 3P, has a laterally long cross sectional shape in which a cross section expands in the in-plane direction (a width direction) of the supporting surface and has a cross sectional shape in which inner spaces Du4 are partitioned into a plurality of spaces in the width direction of the cross section by ribs Du3.

Description

  The present invention relates to a vehicle seat. Specifically, the present invention relates to a vehicle seat in which a duct serving as a ventilation path is provided in a seat pad.

  Conventionally, in a vehicle seat, an air conditioning duct is provided in a seat pad (Patent Document 1). The duct is provided as a state in which the duct is integrally formed with the seat pad by being inserted at the time of foam molding of the seat pad.

JP 2011-110366 A

  However, in the above-described prior art, there is a possibility that the duct may be crushed and the ventilation function may be reduced due to the seating pressure applied to the seat pad. The present invention was devised as a solution to the above-mentioned problem, and the problem to be solved by the present invention is a duct that is not easily crushed even under seating pressure in a seat pad and that does not hinder riding comfort. Is to set.

In order to solve the above problems, the vehicle seat of the present invention takes the following means.
1st invention is a vehicle seat in which the duct used as a ventilation path was provided in the seat pad. The duct is provided so that the ventilation path extends in the in-plane direction of the support surface that receives the seating pressure of the seat pad, and has a horizontally long cross-sectional shape in which the transverse section extends in the in-plane direction of the support surface. At the same time, the internal space has a cross-sectional shape that is partitioned by a rib in the width direction of the cross section.

  According to the first aspect of the present invention, the duct can be provided in the seat pad in a compact manner in the thickness direction so that the ride comfort is hardly hindered. In addition, by setting ribs that divide the internal space into a plurality of width directions in the cross section of the duct, even if seating pressure is input to the duct, the duct is easily deformed so as to bend the entire interior without crushing the internal space. Therefore, it is possible to make it difficult to lower the ventilation function.

  The second invention is the following configuration in the first invention described above. A duct is provided through the central region in the width direction in the seating region of the seat pad.

  According to the second aspect of the invention, the width of the cross section of the duct can be set wide without being greatly limited by the width of the seat pad. Further, the duct can be provided at a short distance straight in the central region without detouring to the corner region in the width direction of the seat pad.

  The third invention is the following configuration in the first or second invention described above. A cross-section in which the duct has a streak that is recessed in a streak-like manner in the direction in which the ventilation path extends, on the outer peripheral wall portion on the opposite side to the side receiving the seating pressure among the outer peripheral wall portions on both sides connected to the rib partitioning the internal space It is made into a shape.

  According to the third aspect of the invention, when the duct is subjected to seating pressure, the duct is easily bent so as to widen the streak that is recessed in a streak shape, so that the whole can be flexed more flexibly without crushing the internal space of the duct. It can be made easy to deform. In addition, when the above-described streak-like recesses are formed on the outer peripheral wall portions on both sides connected to the ribs that partition the internal space of the duct, when the duct receives the seating pressure, the seating pressure is received. Since the outer peripheral wall portion on the side close to the bent side is easily bent so as to shrink the recess, the entire outer wall portion can be easily deformed so as to bend more flexibly without crushing the internal space of the duct.

3 is a perspective view illustrating a schematic configuration of a sheet according to Embodiment 1. FIG. It is a front view of the sheet | seat which highlighted and showed the arrangement | positioning location of a duct and a protector. It is a top view of the sheet | seat which highlighted and showed the arrangement | positioning location of a duct and a protector. It is the IV-IV sectional view taken on the line of FIG. It is the VV sectional view taken on the line of FIG. It is sectional drawing showing the state in which the duct received the seating load and bent.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing.

  First, the configuration of the sheet 1 of Example 1 will be described with reference to FIGS. As shown in FIG. 1, the seat 1 according to the present embodiment is configured as a rear seat of a hybrid vehicle, and has a long width that allows three people to be seated in the same row. The seat 1 includes a seat back 2 that serves as a backrest for a seated occupant, a seat cushion 3 that serves as a seating portion, and a headrest 4 that serves as a headrest. Behind the seat back 2, a battery BA serving as a driving battery for the vehicle is fixedly provided on the floor F.

  The seat back 2 described above has a width direction in which a center seat area 1B and a right seat area 1C are connected to each other in a two-seat area area and a left-seat area 1A in a one-seat area area. The structure is divided into two. Further, the seat cushion 3 has a continuous horizontally long structure with a width for three persons. One headrest 4 is mounted and provided at each of the upper portions of the center seat area 1B, the right seat area 1C, and the left seat area 1A of the seat back 2 described above. The width of the central seat area 1B of the seat 1 described above is narrower than that of the right seat area 1C and the left seat area 1A, and the ratio of the width to the right seat area 1C and the left seat area 1A is 2: 4 (the center seat). Region 1B: Right seat region 1C: Left seat region 1A = 2: 4: 4). In addition, the seat back 2 may have a continuous horizontally long configuration with a width for three persons.

  The left seat area 1A of the seat 1 is provided with an intake duct Du for sending cooling air to the battery BA provided at the lower back of the seat back 2 described above. The intake duct Du corresponds to the “duct” of the present invention. The intake duct Du is made of a resin blow-molded product, and as shown in FIGS. 1 to 5, an exhaust port Du <b> 1 that opens to the rear side behind the center portion of the left seat region 1 </ b> A of the seat back 2. From there, it extends downward through the back of the seat back 2, and further curves and extends forward from there through the inside of a cushion pad 3P made of urethane foam that forms the cushion structure of the seat cushion 3. The seat cushion 3 is provided in a state in which it extends straight to the front side portion in the left seat area 1A of the seat cushion 3 and the intake port Du2 is opened at the front side portion.

  The intake duct Du takes in air from the intake port Du2 that opens at the front portion of the seat cushion 3 and discharges the taken air from the exhaust port Du1 toward the battery BA. . As shown in FIG. 4, the exhaust duct Du1 is connected to the blower BL, and the intake duct Du has a flow of taking in the air from the front intake port Du2 toward the rear exhaust port Du1. It is supposed to be made.

  As shown in FIG. 3, the intake duct Du described above, in detail, extends from the exhaust port Du1 to the lower side through the back of the central portion in the width direction of the left seat region 1A of the seat back 2 and then the seat. The cushion 3 is provided in a state of entering the inside of the cushion pad 3P from the rear surface portion of the central support portion 3A of the left seat region 1A of the cushion 3. The intake duct Du extends straight from the rectangular shape to the horizontally elongated shape in the region of the cushion pad 3P and extends straight forward to the intake port Du2 on the front end side. It is provided as a state.

  More specifically, as shown in FIG. 5, the intake duct Du described above is connected to the central support portion 3 </ b> A and the left and right side support portions 3 </ b> B at the intermediate portion in the height direction in the left seat region 1 </ b> A of the seat cushion 3. The cross section is provided in a shape that is widened in the width direction over a wide region. As a result, the intake duct Du has a support surface (upper surface of the central support portion 3A) that receives the seating pressure of the seat cushion 3 (cushion pad 3P) at an intermediate portion in the height direction in the left seat region 1A of the seat cushion 3. ) In the in-plane direction (front-rear direction), the cross section of the support surface (upper surface of the central support portion 3A) extends in a laterally long shape in the in-plane direction (width direction). It is in the state of being provided.

  The intake duct Du has a cross-sectional shape in which the internal space Du4 is divided into a plurality of spaces in the width direction by a plurality of ribs Du3. Each of the ribs Du3 described above is bent in a bellows shape to the position where the upper and lower outer peripheral wall portions are in contact with each other at various locations in the width direction of the intake duct Du. Is formed. As shown in FIGS. 3 to 4, each of the ribs Du <b> 3 described above is continuous over most of the region in the front-rear direction in which the cross section of the above-described intake duct Du is widened in a horizontally long shape. It is formed in a shape extending like a typical standing wall. Specifically, each of the ribs Du3 passes from the front end region where the intake port Du2 is formed in the intake duct Du to the rear end region in the seat cushion 3 in which the cross-sectional shape of the intake duct Du is narrowed to a rectangular shape. The region is formed up to the region on the near side of the formed region. As a result, the internal space Du4 partitioned by the ribs Du3 described above is combined into one on the front side of the region where the intake duct Du is narrowed to a rectangular cross-sectional shape.

  Further, as shown in FIGS. 3 and 5, the intake duct Du described above is extended in the front-rear direction in which the ventilation path extends at various locations on the outer peripheral wall portion of the region where the cross section is formed in a horizontally long shape. In this configuration, a concave line Du5 that is recessed in a line-like shape is formed. These concave stripes Du5 are formed along the formation region of each rib Du3 on the outer peripheral wall portions on the upper and lower sides of the intake duct Du. As shown in FIG. 6, the intake duct Du is deformed in such a manner that when the seating pressure is applied to the seat cushion 3, the entire intake duct Du 5 is curved in a downward arcuate shape. It has become easier.

  More specifically, the intake duct Du is curved in a downwardly arched shape when seating pressure is applied to the seat cushion 3 and a downward pressing force is applied as described above. And At that time, the intake duct Du is easily deformed so that the upper outer peripheral wall, which is the inner peripheral side of the bow shape, flexes flexibly in the form of narrowing each concave line Du5 by the circumferential compressive stress acting on the wall surface. It has become. In addition, the intake duct Du is easily deformed so that the lower outer peripheral wall, which is the outer peripheral side of the bow shape, flexes flexibly in the form of spreading each concave line Du5 by the circumferential tensile stress acting on the wall surface. ing. Due to these actions, the intake duct Du is easily deformed in such a manner that when the seating pressure is applied to the seat cushion 3, the intake duct Du is curved in a bow shape downward.

  At the time of the above deformation, the intake duct Du is formed with a plurality of ribs Du3 standing therein, so that even if the seating pressure is received as described above, the individual internal space Du4 is crushed. Instead, as described above, the whole can be deformed so as to have a bow shape. Therefore, it is possible to prevent the ventilation function of the intake duct Du from being impaired while easily bending the intake duct Du by the seating pressure to make it difficult to hinder the ride comfort.

  Next, the configuration of the cushion pad 3P described above will be described. As shown in FIG. 5, the cushion pad 3P described above is provided with a wire 3P2 assembled in a substantially frame shape therein by being integrally embedded by insert molding. The part exposed to the outside (not shown) formed in the part of the above is inserted into the panel on the floor F and fixed, so that it is integrally fixed on the floor F and provided in a bottomed state. It is in a state. Further, a cloth cushion cover 3C is integrally provided on the surface portion of the cushion pad 3P. The basic outer shape of the seat cushion 3 is formed by the outer shape formed by the cushion pad 3P.

  Specifically, the cushion pad 3P has a central region of the right seat region 1C and the left seat region 1A on the surface portion thereof as a central support portion 3A, respectively. In order to be able to support the thigh from the lower side with a wide surface, the thigh is formed in a saddle shape that fits the shape of the hip or thigh. Specifically, as shown in FIG. 4, each of the central support portions 3A described above is formed such that a rear region 3Aa for supporting the seat occupant's buttocks is relatively flat and deeply submerged. The supporting front region 3Ab is formed in a shape that is inclined in a front-up manner so that the thigh can be supported in a forward-upward angle posture.

  Moreover, as shown in FIG. 5, both side parts of each center support part 3A of the cushion pad 3P mentioned above are each mountain-shaped toward the outside from the base with each center support part 3A as the side support part 3B. It is formed in a bulging shape. The central seat region 1B of the cushion pad 3P is formed in a flat surface shape that is substantially flush with the side support portions 3B that bulge toward the vehicle inner side of the right seat region 1C and the left seat region 1A. Each of the side support parts 3B is applied to the buttocks and thighs of the occupant seated in the right seat area 1C and the left seat area 1A from both outer sides due to their bulging shapes. It is the structure which supports from. In this way, the cushion pad 3P envelops the butt and thighs of the occupant seated in the right seat area 1C and the left seat area 1A from the lower side by the above-described central support sections 3A and side support sections 3B. It is the structure which can be supported.

  Thus, the seat 1 of the present embodiment has a configuration in which the intake duct Du (duct) serving as the ventilation path is provided in the cushion pad 3P (seat pad). The intake duct Du is provided so that the air passage extends in the in-plane direction (front-rear direction) of the support surface that receives the seating pressure of the cushion pad 3P, and the transverse section is in the in-plane direction (width direction) of the support surface. ) And a cross-sectional shape in which the internal space Du4 is partitioned into a plurality of portions in the width direction of the cross-section by the rib Du3.

  With such a configuration, the intake duct Du can be provided in the cushion pad 3P in the thickness direction in a compact manner so that the ride comfort is hardly hindered. In addition, since the rib Du3 that partitions the internal space Du4 in the width direction of the transverse section is set in the intake duct Du, even if seating pressure is input to the intake duct Du, the intake duct Du does not crush the internal space Du4. Since it becomes easy to deform | transform so that the whole may be bent, a ventilation function can be made hard to fall.

  Specifically, the intake duct Du is provided through a central region in the width direction in the seating region of the cushion pad 3P. With such a configuration, the width of the cross section of the intake duct Du can be set widely without being greatly limited by the width of the cushion pad 3P. In other words, if the intake duct Du is provided through the region on the end side in the width direction of the cushion pad 3P, it is easy to be restricted to widen the cross section of the intake duct Du. By being provided, the cross section of the intake duct Du can be easily spread on both sides in the width direction, and the width length can be set wide. Further, the intake duct Du can be provided at a short distance straight in the central region without detouring to the corner region in the width direction of the cushion pad 3P.

  Further, the intake duct Du has a cross-sectional shape having a streak Du5 that is recessed in a streak-like manner in the direction in which the ventilation path extends, on the outer peripheral wall portions on both the upper and lower sides connected to the rib Du3 that partitions the internal space Du4. By having such a configuration, when the intake duct Du is curved in an arcuate shape, the concave line Du5 is easily bent by being expanded on the outer peripheral side of the bow shape or narrowed on the inner peripheral side. The entire space Du4 of the intake duct Du can be easily deformed so as to bend flexibly without being crushed.

  As mentioned above, although the embodiment of the present invention has been described using one example, the present invention can be implemented in various forms in addition to the above example. For example, the “vehicle seat” of the present invention can be applied to a seat other than a rear seat of an automobile, and may be a seat applied to a vehicle other than an automobile such as a railroad. The present invention can be widely applied as a sheet provided for various vehicles such as the above.

  In addition, the configuration of the present invention can be widely applied to a configuration in which a duct serving as an air passage is provided in a seat pad in a vehicle seat, in addition to a seat cushion, a seat back and a headrest. Can also be applied. The duct may be provided so that the ventilation path extends in the in-plane direction of the support surface that receives the seating pressure of the seat pad, and the ventilation path extends not only in the front-rear direction but also in the width direction of the seat cushion. It may be provided.

  The ribs that divide the internal space of the duct need only be formed in at least one place, and the shape of the ribs is long enough to divide the internal space of the duct long in the direction in which the ventilation path of the duct extends. It is not limited to the one formed, and may be provided standing in a pin shape so as to partition the internal space of the duct in places. By adjusting the installation location of the ribs in various ways, the rigidity of the duct can be adjusted and the ride quality can be adjusted.

  Further, the streak recessed in a streak shape in the extending direction of the ventilation path formed in the outer peripheral wall portion of the duct may not necessarily be formed along the rib forming region, and the outer peripheral wall portions on both the front and back sides of the duct. By being formed on at least one side, the duct can be easily bent so as to be effectively bowed. Further, although the above-mentioned concave stripe may not be formed in the duct, it should be noted that it becomes difficult to make the duct arcuate. In addition, the “duct” only needs to function as a certain ventilation path, and may function as a ventilation path for air conditioning in addition to the intake duct for cooling the battery as shown in the above embodiment. Good.

DESCRIPTION OF SYMBOLS 1 Seat 1A Left seat area 1B Center seat area 1C Right seat area 2 Seat back 3 Seat cushion 3A Center support part 3Aa Rear area 3Ab Front area 3B Side support part 3P Cushion pad (seat pad)
3P2 Wire 3C Cushion cover 4 Headrest BA Battery Du Air intake duct (duct)
Du1 Exhaust port Du2 Inlet port Du3 Rib Du4 Internal space Du5 Concave line BL Blower F Floor

Claims (3)

A vehicle seat provided with a duct serving as a ventilation path in a seat pad,
The duct is provided so that a ventilation path extends in the in-plane direction of the support surface that receives the seating pressure of the seat pad, and the duct has a horizontally long cross-sectional shape that extends in the in-plane direction of the support surface. The vehicle seat is characterized in that the inner space has a cross-sectional shape divided into a plurality of cross-sectional width directions by ribs. The vehicle seat according to claim 1,
The vehicle seat, wherein the duct is provided through a central region in a width direction in a seating region of the seat pad. The vehicle seat according to claim 1 or 2,
Of the outer peripheral wall portions on both sides connected to the rib partitioning the internal space, the duct has a streak recessed in a streak-like manner in the direction in which the ventilation path extends in the outer peripheral wall portion opposite to the side receiving the seating pressure. A vehicle seat characterized by having a cross-sectional shape.

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