JP2020062908A - Vehicular seat - Google Patents

Vehicular seat Download PDF

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Publication number
JP2020062908A
JP2020062908A JP2018194249A JP2018194249A JP2020062908A JP 2020062908 A JP2020062908 A JP 2020062908A JP 2018194249 A JP2018194249 A JP 2018194249A JP 2018194249 A JP2018194249 A JP 2018194249A JP 2020062908 A JP2020062908 A JP 2020062908A
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seat
cushion
seating surface
opening
holes
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宏樹 永田
Hiroki Nagata
宏樹 永田
啓 水野
Hiroshi Mizuno
啓 水野
頼永 稲垣
Yorinaga Inagaki
頼永 稲垣
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Toyota Boshoku Corp
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Toyota Boshoku Corp
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Priority to JP2018194249A priority Critical patent/JP2020062908A/en
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  • Seats For Vehicles (AREA)

Abstract

To provide a vehicular seat that has a sufficient air-conditioning function and is suppressed from causing deterioration in appearance.SOLUTION: A vehicular seat having an air-conditioning function comprises a cushion pad 10 and a cushion cover. The cushion pad 10 comprises a plurality of penetration holes 12c that penetrate in a thickness direction through the cushion pad 10 arranged at both side parts of a body of a seated occupant to suction air through an opening 12c1 formed at a side of a seating surface S. Each of the plurality of penetration holes 12c is formed so that a cross section cut by a surface parallel to an in-face direction of the seating surface S gradually becomes smaller toward a center in a seat width direction of the cushion pad 10 as going from the opening 12c1 toward a rear surface RS of the cushion pad 10.SELECTED DRAWING: Figure 3

Description

本発明は、乗物用シートに関する。   The present invention relates to a vehicle seat.

従来、空調機能を有する乗物用シートが知られている。特許文献1に記載された車両用シートにおいては、シートバックのクッション材であるバックパッドの内部に設けられた流路部を通じて空気が着座乗員の身体に向けて吹き出し可能とされている。着座乗員から印加される荷重がかかりやすい腰部において、バックパッドの両サイド部にはバックパッドの厚み方向に貫通する複数の孔部が設けられ、この孔部を通じて空気が吹き出すように構成されている。   Conventionally, a vehicle seat having an air conditioning function is known. In the vehicle seat described in Patent Document 1, air can be blown toward a seated occupant's body through a flow path portion provided inside a back pad that is a cushion material for a seat back. In the waist where a load applied by a seated occupant is likely to be applied, a plurality of holes are provided in both side parts of the back pad, the holes penetrating in the thickness direction of the back pad, and air is blown out through these holes. .

特開2013−147059号公報JP, 2013-147059, A

特許文献1に開示された技術においては、孔部はバックパッドの着座面側に開口する円柱形状をしている。空気の吹き出し範囲を大きくしようとして円柱形状の直径を大きくすると、開口部の周縁部の剛性が低下し着座乗員から印加される荷重によって開口の周縁部の形状が崩れやすくなる。これによって、着座乗員の身体周縁部のシートバックの表面に不要なハイライト線が現れて外観の悪化を招くおそれがあった。そこで、空気の吹き出し範囲を充分な大きさに確保しながら外観の悪化を招くことを抑制した乗物用シートが望まれていた。   In the technique disclosed in Patent Document 1, the hole has a columnar shape opening to the seating surface side of the back pad. When the diameter of the columnar shape is increased in order to increase the air blowing range, the rigidity of the peripheral portion of the opening is reduced, and the shape of the peripheral portion of the opening is likely to collapse due to the load applied by the seated occupant. As a result, unnecessary highlight lines may appear on the surface of the seat back at the peripheral portion of the seated occupant's body, and the appearance may be deteriorated. Therefore, there has been a demand for a vehicle seat in which the appearance of air is prevented from being deteriorated while ensuring a sufficient size.

このような要請に鑑み本発明の課題は、充分な空調機能を有するとともに外観の悪化を招くことを抑制した乗物用シートを提供することにある。   In view of such demands, an object of the present invention is to provide a vehicle seat that has a sufficient air conditioning function and suppresses deterioration of the appearance.

本発明の第1発明は、空調機能を有する乗物用シートであって、クッション体であるシートパッドと、該シートパッドを被覆する表皮材であるシートカバーと、を備え、前記シートパッドは、着座乗員の身体の両サイド部分に配置された前記シートパッドを厚み方向に貫通して着座面の側の開口部から空気を放出又は吸引する複数の貫通孔を備えており、該貫通孔はそれぞれ前記開口部から前記シートパッドの前記着座面と反対側の面の方向に向かうにつれて前記着座面の面内方向と平行な面で切った断面が前記シートパッドのシート幅方向の中央に向かって徐々に小さくなるように形成されていることを特徴とする。   A first aspect of the present invention is a vehicle seat having an air-conditioning function, comprising a seat pad that is a cushion body and a seat cover that is a skin material that covers the seat pad. The occupant's body is provided with a plurality of through holes that penetrate through the seat pads arranged on both side portions in the thickness direction to discharge or suck air from the opening on the side of the seating surface, and the through holes are respectively A cross section taken along a plane parallel to the in-plane direction of the seating surface gradually advances toward the center of the seat pad in the seat width direction as it goes from the opening toward the surface of the seat pad opposite to the seating surface. It is characterized in that it is formed to be small.

第1発明によれば、複数の貫通孔は、それぞれ開口部からシートパッドの着座面と反対方向に向かうにつれて着座面の面内方向と平行な面で切った断面がシートパッドのシート幅方向の中央に向かって徐々に小さくなるように形成されている。すなわち、複数の貫通孔は、シート幅方向に垂直な方向から見たときシート幅方向外側の面が、シート幅方向の中央に近づくにつれて徐々に着座面から離れる斜面として形成されている。そして、開口部の周縁部におけるシート幅方向外側の着座面と貫通孔のシート幅方向外側の面がなす角度が鈍角となるので直角となる場合に比べて剛性が高まり着座者から印加される荷重によって変形しにくくなる。これによって、開口部の面積を確保して空気の放出又は吸引性能を充分保ちながら、目につく部分である着座乗員の身体周縁部のシートカバーの表面に不要なハイライト線が現れて外観の悪化を招くおそれを抑制できる。   According to the first aspect of the invention, the plurality of through holes each have a cross section taken along a plane parallel to the in-plane direction of the seating surface in the seat width direction of the seat pad as it goes from the opening in the direction opposite to the seating surface of the seat pad. It is formed so as to become gradually smaller toward the center. That is, the plurality of through-holes are formed as an inclined surface whose outer surface in the seat width direction when viewed from a direction perpendicular to the seat width direction gradually separates from the seating surface as it approaches the center in the seat width direction. Then, since the angle formed by the seating surface on the outer side in the seat width direction and the surface on the outer side in the seat width direction of the through hole at the peripheral edge of the opening is an obtuse angle, the rigidity is increased compared to the case of a right angle, and the load applied by the seated person is increased. Makes it difficult to deform. As a result, unnecessary highlight lines appear on the surface of the seat cover at the peripheral portion of the seated occupant's body, which is a conspicuous part, while maintaining the area of the opening and sufficiently maintaining the air discharge or suction performance. It is possible to suppress the possibility of causing deterioration.

本発明の第2発明は、上記第1発明において、前記複数の貫通孔のそれぞれは、前記着座面と反対側が前記シートパッドの前記着座面と反対側の面に沿って延び空気を供給又は排出する通気路に連結されていることを特徴とする。   In a second aspect of the present invention based on the first aspect, each of the plurality of through holes has a side opposite to the seating surface extending along a surface of the seat pad opposite to the seating surface to supply or discharge air. It is characterized in that it is connected to a ventilation passage.

第2発明によれば、シートパッドは簡潔な構造で複数の貫通孔のそれぞれに対して空気を供給し又は排出することができる。   According to the second aspect of the invention, the seat pad can supply or discharge air to each of the plurality of through holes with a simple structure.

本発明の第3発明は、上記第1発明又は上記第2発明において、前記シートパッドはシートクッションのクッション材であるクッションパッドであって、前記シートクッションにAM95マネキンを着座させたとき、前記複数の貫通孔の前記開口部は前記AM95マネキンの坐骨結節部位置のシート幅方向外側に配置されていることを特徴とする。   3rd invention of this invention is a cushion pad which is a cushion material of a seat cushion in the said 1st invention or said 2nd invention, Comprising: When AM95 mannequin is seated on the said seat cushion, the said several The opening of the through hole is located outside the seat bone node of the AM95 mannequin in the seat width direction.

第3発明によれば、シートクッションにAM95マネキンを着座させたとき、複数の貫通孔の開口部はAM95マネキンの坐骨結節部のシート幅方向外側に配置されているので、大柄な体格の着座者であっても開口部の周縁部は変形しにくい。これによって、着座者の体格が大柄であっても小柄であっても着座者の身体の両サイド部分に空気を放出又は吸引して空調することができる。なお、AM95マネキンとは、米国成人男性の体重の正規分布において、最軽量側から95%の人が含まれる体格のマネキンをいう。   According to the third aspect of the present invention, when the AM95 mannequin is seated on the seat cushion, the openings of the plurality of through holes are arranged on the outer side in the seat width direction of the ischial tuberosity of the AM95 mannequin. However, the peripheral edge of the opening is not easily deformed. This allows air conditioning to be performed by releasing or sucking air to both side portions of the seated person's body, regardless of whether the seated person has a large build or a small build. The AM95 mannequin is a mannequin having a physique that includes 95% of people from the lightest side in the normal distribution of body weight of adult US men.

本発明の一実施形態に係る自動車用シートの斜視図である。1 is a perspective view of a vehicle seat according to an embodiment of the present invention. 上記実施形態の自動車用シートのクッションパッドの平面図である。It is a top view of the cushion pad of the seat for vehicles of the above-mentioned embodiment. 図2のIII−III矢視線断面図である。FIG. 3 is a sectional view taken along the line III-III of FIG. 2. 図2のIV−IV矢視線断面図である。FIG. 4 is a sectional view taken along the line IV-IV of FIG. 2. 図2のV−V矢視線断面図である。FIG. 5 is a sectional view taken along the line VV of FIG. 2.

図1〜図5は、本発明の一実施形態を示す図である。本実施形態の自動車用シート1は、自動車のフロントシートとして構成されている。各図中、矢印により自動車用シート1を自動車のフロアに取付けたときの自動車及び自動車用シート1の各方向を示している。以下の説明において、方向に関する記述は、この方向を基準として行うものとする。   1 to 5 are views showing an embodiment of the present invention. The vehicle seat 1 of the present embodiment is configured as a front seat of an automobile. In each figure, arrows indicate the directions of the automobile and the automobile seat 1 when the automobile seat 1 is attached to the floor of the automobile. In the following description, the description regarding the direction is based on this direction.

図1に示すように、本実施形態に係る自動車用シート1は、乗員の着座部となるシートクッション2と、乗員の背凭れ部となるシートバック3と、を備えている。シートクッション2は、骨格をなすクッションフレーム(図示せず)と、クッションフレームの上に載置されるクッション材としてのクッションパッド10と、クッションパッド10の表面を被覆する表皮材としてのクッションカバー20と、を備えている。クッションパッド10を被覆するクッションカバー20の外形線がシートクッション2の外形線を構成する。クッションカバー20に被覆されたクッションパッド10の上面が着座面Sである。シートクッション2の後側には、リクライナ(図示せず)を介してシートバック3の下側が取付けられ、シートクッション2に対するシートバック3の傾き角度を調整できるようになっている。シートバック3については、公知の構成のものなので説明を省略し、シートクッション2について説明していく。ここで、自動車用シート1が、特許請求の範囲の「乗物用シート」に相当する。また、クッションパッド10とクッションカバー20が、それぞれ、特許請求の範囲の「シートパッド」と「シートカバー」に相当する。   As shown in FIG. 1, a vehicle seat 1 according to this embodiment includes a seat cushion 2 that serves as a seating portion for an occupant and a seat back 3 that serves as a backrest portion for the occupant. The seat cushion 2 includes a cushion frame (not shown) forming a skeleton, a cushion pad 10 as a cushion material placed on the cushion frame, and a cushion cover 20 as a skin material covering the surface of the cushion pad 10. And are equipped with. The outline of the cushion cover 20 that covers the cushion pad 10 forms the outline of the seat cushion 2. The upper surface of the cushion pad 10 covered with the cushion cover 20 is a seating surface S. The lower side of the seat back 3 is attached to the rear side of the seat cushion 2 via a recliner (not shown), and the inclination angle of the seat back 3 with respect to the seat cushion 2 can be adjusted. The seat back 3 has a well-known configuration, and therefore its description is omitted, and the seat cushion 2 will be described. Here, the vehicle seat 1 corresponds to the "vehicle seat" in the claims. The cushion pad 10 and the cushion cover 20 correspond to the "seat pad" and the "seat cover" in the claims, respectively.

図2〜図5に示すように、クッションパッド10は、上面視で略矩形状をしており、着座乗員の臀部及び大腿部の下面に当接して支持するメイン部10Aと、着座乗員の臀部及び大腿部の側面に当接して支持するサイド部10Bと、を有する。メイン部10Aは、シート幅方向である左右方向の中央部に位置して略平坦な着座面Sを形成している。サイド部10Bは、メイン部10Aの左右両側に位置してメイン部10Aから上方に向けて膨出した着座面Sを形成している。メイン部10Aとサイド部10Bとの間の着座面Sの側には、横断面が上方に向けて開口した略U字状の縦溝10Cが略前後方向に延びて形成されている。メイン部10Aは、主として着座者の大腿部を支持する前部11と、主として着座者の臀部を支持する中央部12と、中央部12の後方に位置する後部13と、を備えている。前部11と中央部12との間の着座面Sの側には、横断面が上方に向けて開口した略U字状の前横溝10Dが略左右方向に延びて形成されている。中央部12と後部13との間の着座面Sの側には、横断面が上方に向けて開口した略U字状の後横溝10Eが略左右方向に延びて形成されている。縦溝10C、前横溝10D及び後横溝10Eの開口と反対側の溝底部には複数の係止部材10Fが配設されている。クッションカバー20のクッションパッド10に当接する側の面に取付けられた吊り部材(図示せず)が、複数の係止部材10Fに係止されるとともに、クッションカバー20の端末部がクッションフレームに係止されることによってクッションカバー20がクッションパッド10に固定される。クッションパッド10は、軟質ポリウレタン発泡樹脂製のクッション体で、軟質ポリウレタン樹脂を型内で発泡成形することにより形成されている。   As shown in FIGS. 2 to 5, the cushion pad 10 has a substantially rectangular shape in a top view, and the main portion 10A that abuts and supports the lower surface of the buttocks and thighs of the seated occupant and the seated occupant. And a side portion 10B that abuts against and supports side surfaces of the buttocks and thighs. The main portion 10A is located at the center portion in the left-right direction, which is the seat width direction, and forms a substantially flat seating surface S. The side portions 10B are located on the left and right sides of the main portion 10A and form a seating surface S that bulges upward from the main portion 10A. On the side of the seating surface S between the main portion 10A and the side portion 10B, a substantially U-shaped vertical groove 10C having a horizontal cross section that opens upward is formed to extend substantially in the front-rear direction. The main portion 10A includes a front portion 11 that mainly supports the thighs of the seated person, a center portion 12 that mainly supports the buttocks of the seated person, and a rear portion 13 that is located behind the center portion 12. On the side of the seating surface S between the front portion 11 and the central portion 12, a substantially U-shaped front lateral groove 10D having a lateral cross section that opens upward is formed so as to extend substantially in the left-right direction. On the side of the seating surface S between the central portion 12 and the rear portion 13, a substantially U-shaped rear lateral groove 10E having a lateral cross section that opens upward is formed to extend substantially in the left-right direction. A plurality of locking members 10F are provided on the groove bottoms on the opposite sides of the openings of the vertical grooves 10C, the front lateral grooves 10D, and the rear lateral grooves 10E. A suspension member (not shown) attached to the surface of the cushion cover 20 that abuts on the cushion pad 10 is locked by the plurality of locking members 10F, and the end portion of the cushion cover 20 engages with the cushion frame. The cushion cover 20 is fixed to the cushion pad 10 by being stopped. The cushion pad 10 is a cushion body made of a soft polyurethane foam resin, and is formed by foaming the soft polyurethane resin in a mold.

図2〜図5に示すように、クッションパッド10の着座面Sと反対側の面が裏面RSである。前部11の裏面RSの側には、左右方向の中央部から放射状に延びる前裏溝部11aが設けられている。前裏溝部11aの深さ(裏面RSから溝部底面11a1までの距離)は、前部11の上下方向の厚みの半分程度である。前部11には、着座面Sと溝部底面11a1との間を貫通して、横断面が円形の前貫通孔11bが1つと、横断面が左右方向を長軸とする長円形の前貫通孔11cが8つと、が設けられている。前貫通孔11bは、前部11の左右方向中央部に配置され、前貫通孔11cは、前部11の左右方向中央線に関して左右対称な位置に4つずつが配置されている。前裏溝部11aの下方の開口は、面状のフェルト状部材である蓋部材10Gによって覆われている。これによって、前裏溝部11aと蓋部材10Gは、前通気路11eを構成し、前通気路11eに連結された吸気装置(図示せず)による空気の吸引によって、前貫通孔11b及び前貫通孔11cを通じて着座面Sの上方の空気を吸引する。前部11の上方には、クッションカバー20が配置され、その上に着座者の大腿部が存在するので、クッションカバー20を通じた前貫通孔11b及び前貫通孔11cへの空気流によって着座者の大腿部が冷却される。ここで、裏面RSが、特許請求の範囲の「着座面と反対側の面」に相当する。   As shown in FIGS. 2 to 5, the surface of the cushion pad 10 opposite to the seating surface S is the back surface RS. On the rear surface RS side of the front portion 11, a front back groove portion 11a is provided that extends radially from the center portion in the left-right direction. The depth of the front and rear groove portions 11a (the distance from the back surface RS to the groove bottom surface 11a1) is about half the thickness of the front portion 11 in the vertical direction. The front part 11 has one front through hole 11b penetrating between the seating surface S and the groove bottom surface 11a1 and having a circular cross section, and an oval front through hole having a cross section whose major axis is in the left-right direction. 8 and 11c are provided. The front through-holes 11b are arranged at the center of the front part 11 in the left-right direction, and the front through-holes 11c are arranged four at left-right symmetry with respect to the center line of the front part 11 in the left-right direction. The lower opening of the front and rear groove portions 11a is covered with a lid member 10G that is a sheet-like felt member. As a result, the front and rear groove portions 11a and the lid member 10G constitute the front ventilation passage 11e, and the air is sucked by the intake device (not shown) connected to the front ventilation passage 11e. Air above the seating surface S is sucked through 11c. Since the cushion cover 20 is arranged above the front portion 11 and the thigh of the seated person is present on the cushion cover 20, the seated person is seated by the air flow through the cushion cover 20 to the front through holes 11b and 11c. Thighs are cooled. Here, the back surface RS corresponds to the “surface opposite to the seating surface” in the claims.

中央部12の裏面RSの側には、左右方向中央部において前後方向に延びる第1中裏溝部12a1と、左右両側において略前後方向に延びるとともに前端部側が互いに近接するように前方に向かって延びる左右一対の第2中裏溝部12a2が設けられている。第1中裏溝部12a1の横断面は略矩形状をしており、第1中裏溝部12a1の深さ(裏面RSから溝部底面12a11までの距離)は、中央部12の上下方向の厚みの半分程度である。第2中裏溝部12a2の横断面は略矩形状をしており、第2中裏溝部12a2の深さ(裏面RSから溝部底面12a21までの距離)は、中央部12の上下方向の厚みの1/3程度である。第1中裏溝部12a1の前端部と左右一対の第2中裏溝部12a2の前端部は、前裏溝部11aに連結されている。   On the rear surface RS side of the central portion 12, a first middle back groove portion 12a1 extending in the front-rear direction at the center portion in the left-right direction, and substantially left-right sides extending in the front-rear direction and extending forward so that the front end portions are close to each other. A pair of left and right second middle and rear groove portions 12a2 are provided. The cross section of the first middle back groove portion 12a1 is substantially rectangular, and the depth of the first middle back groove portion 12a1 (the distance from the back surface RS to the groove bottom surface 12a11) is half the thickness of the central portion 12 in the vertical direction. It is a degree. The cross section of the second middle back groove portion 12a2 is substantially rectangular, and the depth of the second middle back groove portion 12a2 (the distance from the back surface RS to the groove bottom surface 12a21) is 1 of the vertical thickness of the central portion 12. It is about / 3. The front end portion of the first middle back groove portion 12a1 and the front end portions of the pair of left and right second middle back groove portions 12a2 are connected to the front back groove portion 11a.

中央部12には、着座面Sと第1中裏溝部12a1の溝部底面12a11との間を貫通して、横断面が円形のセンタ貫通孔12bが1つ設けられている。また、中央部12には、着座面Sと第2中裏溝部12a2の溝部底面12a11との間を貫通して、上方から下方に向かうにつれて断面形状が変化するサイド貫通孔12cが左右にそれぞれ4つずつ前後に並んで設けられている。サイド貫通孔12cは、中央部12の左右方向中央線に関して左右対称な形状で形成されている。そして、左右とも前後に4つ並んで配置されているので、代表として右側のサイド貫通孔12cについて説明する。図2及び図3に示すように、サイド貫通孔12cの着座面Sにおける開口12c1は、長軸を左右方向とする長円形をしている。そして、長軸の長さは、第2中裏溝部12a2の左右方向の幅とほぼ同一であり、上面視で開口12c1の左右端部は第2中裏溝部12a2の左右端部と重なっている。サイド貫通孔12cの第2中裏溝部12a2の溝部底面12a21における開口12c2は円形でありその直径は開口12c1の短軸の長さとほぼ同一である。上面視で、開口12c2の左端部は、第2中裏溝部12a2の左端部と一致している。サイド貫通孔12cの下側部12c3は、底面が開口12c2である円柱状で、上下方向に中央部12の上下方向の厚みの1/3程度延びて形成されている。開口12c1から下側部12c3の上端部にかけて長円の長軸方向の右側(シート外側)が下方に向かうにつれて左方(シート内側)に移動して形成される変則的な漏斗形状をした傾斜面部12c4が形成されている。図3において、開口12c1の左端部より左側の着座面Sと傾斜面部12c4とのなす角度θは鈍角となり、開口12c1の右端部より右側の着座面Sと傾斜面部12c4とのなす角度θは90度となっている。傾斜面部12c4の上下方向の長さは、下側部12c3の上下方向の長さとほぼ同じである。ここで、サイド貫通孔12cと開口12c1が、それぞれ、特許請求の範囲の「貫通孔」と「開口部」に相当する。   The center portion 12 is provided with one center through hole 12b having a circular cross section, which penetrates between the seating surface S and the groove bottom surface 12a11 of the first middle back groove portion 12a1. Further, in the central portion 12, side through-holes 12c, which penetrate between the seating surface S and the groove bottom surface 12a11 of the second middle back groove portion 12a2 and whose cross-sectional shape changes from the upper side to the lower side, are formed on the left and right sides, respectively. They are provided side by side one by one. The side through hole 12c is formed in a symmetrical shape with respect to the center line in the left-right direction of the central portion 12. Since the four left and right sides are arranged side by side, the right side through hole 12c will be described as a representative. As shown in FIGS. 2 and 3, the opening 12c1 on the seating surface S of the side through hole 12c has an oval shape with the major axis in the left-right direction. The length of the major axis is substantially the same as the lateral width of the second middle back groove 12a2, and the left and right ends of the opening 12c1 overlap with the left and right ends of the second middle back groove 12a2 in a top view. . The opening 12c2 in the groove bottom surface 12a21 of the second middle back groove 12a2 of the side through hole 12c is circular, and its diameter is substantially the same as the length of the minor axis of the opening 12c1. In a top view, the left end of the opening 12c2 coincides with the left end of the second middle back groove 12a2. The lower portion 12c3 of the side through hole 12c has a columnar shape with a bottom surface having an opening 12c2, and is formed to extend in the vertical direction by about 1/3 of the vertical thickness of the central portion 12. An irregular funnel-shaped inclined surface portion formed by moving the right side (outside of the seat) of the oval from the opening 12c1 to the upper end of the lower side portion 12c3 toward the left (inside of the seat) as it goes downward. 12c4 is formed. In FIG. 3, an angle θ formed between the seating surface S on the left side of the left end of the opening 12c1 and the inclined surface portion 12c4 is an obtuse angle, and an angle θ formed between the seating surface S on the right side of the right end portion of the opening 12c1 and the inclined surface portion 12c4 is 90. It is a degree. The vertical length of the inclined surface portion 12c4 is substantially the same as the vertical length of the lower portion 12c3. Here, the side through hole 12c and the opening 12c1 correspond to the "through hole" and the "opening", respectively, in the claims.

図2及び図3に示すように、シートクッション2の上にAM95マネキンを着座させたとき、AM95マネキンの座骨結節部位置Pは、前後に4つ並ぶサイド貫通孔12cの後ろから2つ目の左右のサイド貫通孔12cの間に位置する。これは、シートクッション2の着座面Sにおいて、大柄な体型の着座者の最も座圧が高くなる座骨結節部位置Pが、左右のサイド貫通孔12cの間に位置しサイド貫通孔12cには重なっていないことを意味する。すなわち、大柄な体格の着座者であっても開口12c1の周縁部のシート外側は座圧が座骨結節部位置Pに比べて低くなり変形しにくくなる。ここで、図3において代表として右側のサイド貫通孔12cについて見ると、開口12c1の左端部周縁部においては、着座面Sと傾斜面部12c4とのなす角度θは鈍角とされているので、開口12c1の右端部周縁部に比べて剛性が高い。これによって、開口12c1の左端部周縁部(周縁部のシート外側)は、開口12c1の右端部周縁部(周縁部のシート内側)に比べて、さらに変形しにくく上方に配置されたクッションカバー20の表面に不要なハイライト線が現れて外観を悪化させることが抑制される。   As shown in FIGS. 2 and 3, when the AM95 mannequin is seated on the seat cushion 2, the ischial tuberous joint position P of the AM95 mannequin is the second from the back of the four side through holes 12c arranged in front and back. It is located between the left and right side through holes 12c. This is because on the seating surface S of the seat cushion 2, the ischial tuberous joint position P where the seat pressure of a large-sized seated person is highest is located between the left and right side through holes 12c and overlaps the side through holes 12c. Means not. That is, even for a seated person with a large build, the seat pressure on the outside of the seat at the peripheral edge of the opening 12c1 is lower than that at the ischial tuberous portion position P, and is less likely to be deformed. Here, looking at the right side through hole 12c as a representative in FIG. 3, the angle θ between the seating surface S and the inclined surface portion 12c4 is an obtuse angle at the left end peripheral portion of the opening 12c1, so that the opening 12c1 is formed. Rigidity is higher than that of the right end edge of the. As a result, the peripheral edge of the left end portion of the opening 12c1 (outside the seat of the peripheral edge portion) is less likely to be deformed than the peripheral edge portion of the right end portion of the opening 12c1 (inside of the seat of the peripheral edge portion), and the cushion cover 20 placed above It is possible to prevent unwanted highlight lines from appearing on the surface and deteriorating the appearance.

図3〜図5に示すように、第1中裏溝部12a1と左右一対の第2中裏溝部12a2の下方の開口は、面状のフェルト状部材である蓋部材10Gによって覆われている。これによって、第1中裏溝部12a1と蓋部材10Gは第1中通気路12dを構成し、左右一対の第2中裏溝部12a2は第2中通気路12eを構成する。第1中通気路12dと第2中通気路12eは、前通気路11eに連結され、前通気路11eに連結された吸気装置(図示せず)による空気の吸引によって、センタ貫通孔12b及びサイド貫通孔12cを通じて着座面Sの上方の空気を吸引する。中央部12の上方には、クッションカバー20が配置され、その上に着座者の臀部が存在するので、クッションカバー20を通じたセンタ貫通孔12b及びサイド貫通孔12cへの空気流によって着座者の臀部が冷却される。ここで、第2中通気路12eが、特許請求の範囲の「通気路」に相当する。   As shown in FIGS. 3 to 5, the lower openings of the first inner back groove portion 12a1 and the pair of left and right second inner back groove portions 12a2 are covered with a lid member 10G that is a planar felt-like member. As a result, the first middle back groove portion 12a1 and the lid member 10G form a first middle air passage 12d, and the pair of left and right second middle back groove portions 12a2 form a second middle air passage 12e. The first middle air passage 12d and the second middle air passage 12e are connected to the front air passage 11e, and air is sucked by an intake device (not shown) connected to the front air passage 11e, so that the center through hole 12b and the side. Air above the seating surface S is sucked through the through hole 12c. Since the cushion cover 20 is arranged above the central portion 12 and the buttocks of the seated person are present on the cushion cover 20, the buttocks of the seated person are caused by the air flow through the cushion cover 20 to the center through hole 12b and the side through holes 12c. Is cooled. Here, the second middle air passage 12e corresponds to the "air passage" in the claims.

以上のように構成される本実施形態は、以下のような作用効果を奏する。複数のサイド貫通孔12cは、それぞれ、開口12c1から開口12c2に向かうにつれて着座面Sの面内方向と平行な面で切った断面がクッションパッド10のシート幅方向の中央に向かって徐々に小さくなるように形成されている傾斜面部12c4を備える。すなわち、複数のサイド貫通孔12cは、前方から見たときシート幅方向外側の面が、シート幅方向の中央に近づくにつれて徐々に着座面Sから離れる斜面として形成されている。そして、前方から見たとき開口12c1のシート幅方向外側の着座面Sと傾斜面部12c4がなす角度θは鈍角となるので、この角度が直角となる場合に比べて剛性が高まり着座者から印加される荷重によって変形しにくくなる。これによって、開口12c1の面積を確保して空気の放出又は吸引性能を充分保ちながら、目につく部分である着座乗員の身体周縁部のシートカバーの表面に不要なハイライト線が現れて外観の悪化を招くおそれを抑制できる。   The present embodiment configured as described above has the following operational effects. Each of the plurality of side through holes 12c has a cross section taken along a plane parallel to the in-plane direction of the seating surface S gradually decreases from the opening 12c1 toward the opening 12c2 toward the center of the cushion pad 10 in the seat width direction. The inclined surface portion 12c4 formed as described above is provided. That is, the plurality of side through holes 12c are formed such that the surface on the outer side in the seat width direction when viewed from the front gradually slopes away from the seating surface S toward the center in the seat width direction. When viewed from the front, the angle θ formed by the seating surface S on the outer side in the seat width direction of the opening 12c1 and the inclined surface portion 12c4 is an obtuse angle. Therefore, the rigidity is higher than that when the angle is a right angle, and the angle is applied by the seated person. It becomes difficult to be deformed by the load. As a result, unnecessary highlight lines appear on the surface of the seat cover at the peripheral portion of the seated occupant's body, which is a conspicuous part, while ensuring the area of the opening 12c1 and sufficiently maintaining the air discharge or suction performance. It is possible to suppress the possibility of causing deterioration.

また、複数のサイド貫通孔12cは、それぞれ、その下端部が第2中通気路12eに連結されているので、簡潔な構造で複数のサイド貫通孔12cのそれぞれから空気を吸引することができる。さらに、シートクッション2の上にAM95マネキンを着座させたとき、複数のサイド貫通孔12cの開口12c1は、AM95マネキンの座骨結節部位置Pのシート幅方向外側に配置されているので、大柄な体格の着座者であっても開口12c1のシート幅方向外側の周縁部は変形しにくい。これによって、着座者の体格が大柄であっても小柄であっても着座者の身体の両サイド部分から空気を吸引して空調することができる。   Further, since the lower ends of the plurality of side through holes 12c are connected to the second middle ventilation passage 12e, air can be sucked from each of the plurality of side through holes 12c with a simple structure. Further, when the AM95 mannequin is seated on the seat cushion 2, the openings 12c1 of the plurality of side through holes 12c are arranged on the outer side in the seat width direction of the ischial tuberous joint position P of the AM95 mannequin, so that the body size is large. Even the seated person is unlikely to deform the peripheral portion of the opening 12c1 on the outer side in the seat width direction. As a result, air conditioning can be performed by sucking air from both side portions of the seated person's body regardless of whether the seated person has a large build or a small build.

以上、特定の実施形態について説明したが、本発明は、それらの外観、構成に限定されず、本発明の要旨を変更しない範囲で種々の変更、追加、削除が可能である。例えば、次のようなものが挙げられる。   Although the specific embodiments have been described above, the present invention is not limited to those appearances and configurations, and various changes, additions and deletions can be made without departing from the spirit of the present invention. For example, the following may be mentioned.

1.上記実施形態では、本発明をシートクッション2に適用したが、これに限らず、シートバックに適用することもできる。また、上記実施形態では、複数のサイド貫通孔12cを通じて空気を吸引する例を示したが、空気を放出するものであってもよい。 1. Although the present invention is applied to the seat cushion 2 in the above-described embodiment, the present invention is not limited to this and can be applied to a seat back. Further, in the above-described embodiment, the example in which the air is sucked through the plurality of side through holes 12c has been shown, but the air may be discharged.

2.上記実施形態では、複数のサイド貫通孔12cの下端部をクッションパッド10の内部に設けた第2中通気路12eに連結して開口12c2とした。しかし、これに限らず、複数のサイド貫通孔12cの下端部を裏面RSにおいて開口させて、クッションパッド10の外部に通気路を配設してもよい。 2. In the above embodiment, the lower end portions of the plurality of side through holes 12c are connected to the second middle ventilation passage 12e provided inside the cushion pad 10 to form the opening 12c2. However, the present invention is not limited to this, and the air passages may be provided outside the cushion pad 10 by opening the lower ends of the plurality of side through holes 12c on the back surface RS.

3.上記実施形態では、複数のサイド貫通孔12cの開口12c1を上面視で長円形としたが、これに限らず、左右方向に長い矩形状や多角形状とすることもできる。 3. In the above-described embodiment, the openings 12c1 of the plurality of side through holes 12c have an oval shape in a top view, but the invention is not limited to this, and may have a rectangular shape or a polygonal shape that is long in the left-right direction.

4.上記実施形態では、本発明を自動車のシートに適用したが、飛行機、船、電車等に搭載のシートに適用してもよい。 4. In the above embodiment, the present invention is applied to the seat of the automobile, but may be applied to the seat mounted on an airplane, a ship, a train, or the like.

1 自動車用シート(乗物用シート)
2 シートクッション
10 クッションパッド(シートパッド)
10A メイン部
12 中央部
12c サイド貫通孔(貫通孔)
12b センタ貫通孔
12c1 開口(開口部)
12c2 開口
12c4 傾斜面部
12e 第2中通気路(通気路)
20 クッションカバー(シートカバー)
P 座骨結節部位置
RS 裏面(着座面と反対側の面)
S 着座面
1 Car seats (vehicle seats)
2 Seat cushion 10 Cushion pad (seat pad)
10A Main part 12 Central part 12c Side through hole (through hole)
12b Center through hole 12c1 Opening (opening)
12c2 opening 12c4 inclined surface portion 12e second middle air passage (air passage)
20 Cushion cover (seat cover)
P Sciatic tubercle position RS Back surface (surface opposite seating surface)
S seating surface

Claims (3)

空調機能を有する乗物用シートであって、
クッション体であるシートパッドと、該シートパッドを被覆する表皮材であるシートカバーと、を備え、
前記シートパッドは、着座乗員の身体の両サイド部分に配置された前記シートパッドを厚み方向に貫通して着座面の側の開口部から空気を放出又は吸引する複数の貫通孔を備えており、
該複数の貫通孔はそれぞれ前記開口部から前記シートパッドの前記着座面と反対側の面の方向に向かうにつれて前記着座面の面内方向と平行な面で切った断面が前記シートパッドのシート幅方向の中央に向かって徐々に小さくなるように形成されている乗物用シート。
A vehicle seat having an air conditioning function,
A seat pad that is a cushion body, and a seat cover that is a skin material that covers the seat pad,
The seat pad is provided with a plurality of through-holes for discharging or sucking air from the opening on the side of the seating surface by penetrating the seat pad arranged on both side portions of the body of the seated occupant in the thickness direction,
Each of the plurality of through-holes has a cross section taken along a plane parallel to the in-plane direction of the seating surface as it goes from the opening toward the surface of the seat pad opposite to the seating surface. A vehicle seat that is formed to be gradually smaller toward the center of the direction.
請求項1において、前記複数の貫通孔のそれぞれは、前記着座面と反対側が前記シートパッドの前記着座面と反対側の面に沿って延び空気を供給又は排出する通気路に連結されている乗物用シート。   The vehicle according to claim 1, wherein each of the plurality of through holes has a side opposite to the seating surface extending along a surface of the seat pad opposite to the seating surface and is connected to a ventilation path for supplying or discharging air. Sheet. 請求項1又は請求項2において、前記シートパッドはシートクッションのクッション材であるクッションパッドであって、前記シートクッションにAM95マネキンを着座させたとき、前記複数の貫通孔の前記開口部は前記AM95マネキンの座骨結節部位置のシート幅方向外側に配置されている乗物用シート。   The seat pad according to claim 1 or 2, wherein the seat pad is a cushion pad of a seat cushion, and when an AM95 mannequin is seated on the seat cushion, the openings of the plurality of through holes are the AM95. A vehicle seat that is arranged on the outer side in the seat width direction at the position of the ischial tuberosity of the mannequin.
JP2018194249A 2018-10-15 2018-10-15 Vehicular seat Pending JP2020062908A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114475379A (en) * 2020-10-28 2022-05-13 本田技研工业株式会社 Molded article structure and method for manufacturing molded article

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114475379A (en) * 2020-10-28 2022-05-13 本田技研工业株式会社 Molded article structure and method for manufacturing molded article

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