JP6869804B2

JP6869804B2 - Vehicle seat pad

Info

Publication number: JP6869804B2
Application number: JP2017095018A
Authority: JP
Inventors: 松本　真人; 真人松本; 剛志牛山
Original assignee: Toyota Boshoku Corp; Inoac Corp
Current assignee: Toyota Boshoku Corp; Inoac Corp
Priority date: 2017-05-11
Filing date: 2017-05-11
Publication date: 2021-05-12
Anticipated expiration: 2037-05-11
Also published as: JP2018188109A

Description

この発明は、発泡樹脂部材からなるパッド基材により構成された車両用のシートパッドに関するものである。 The present invention relates to a seat pad for a vehicle, which is made of a pad base material made of a foamed resin member.

乗用車等の乗員室内に設置されるシート１００は、例えば図７に示すように、着座した乗員の下半身を支えるシートクッション１０２と、このシートクッション１０２の後部に傾動可能に設置されて乗員の上半身を支えるシートバック１０４と、シートバック１０４の上部に設置されて乗員の頭部を保護するヘッドレスト１０６とを備えるよう構成されていることが一般的である。このようなシートクッション１０２やシートバック１０４は、ポリウレタンフォーム等の発泡樹脂部材により形成されたシートパッドの表面をファブリックや合成皮革または皮革等の表皮材により形成されたシートカバーで覆う(カバーリングする)ように形成されている(例えば特許文献１)。 As shown in FIG. 7, for example, the seat 100 installed in the passenger compartment of a passenger car or the like has a seat cushion 102 that supports the lower body of the seated occupant and a seat cushion 102 that is tiltably installed at the rear of the seat cushion 102 to provide the upper body of the occupant. It is generally configured to include a supporting seat back 104 and a headrest 106 installed on top of the seat back 104 to protect the occupant's head. Such a seat cushion 102 or a seat back 104 covers (covers) the surface of a seat pad formed of a foamed resin member such as polyurethane foam with a seat cover formed of a fabric or a skin material such as synthetic leather or leather. ) (For example, Patent Document 1).

特許第５２０３６９１号公報Japanese Patent No. 5203691

ここで、シートカバーは、所要のデザイン形状に形成したシートパッドに対して弛みがないように張設することが求められることから、前記特許文献１のように、ファブリックや合成皮革または皮革等の表皮材を縫製して袋状に形成するよう形成されたシートカバーの縫い代を、シートパッドに形成されたホグリング用の溝に引き込むことにより、シートパッドの表面形状に対して弛みなく張設される。このような袋状のシートカバーをシートパッドに被せる際や、表皮材の縫い代をホグリング用の溝に引き込む際に、シートパッドの外周縁が変形してしまうと、シートパッドのデザインが損なわれてしまう。このようなシートパッドの変形は、前述した特許文献１のように、シートパッドの上端部や側部等のシートパッドの外周縁側を構成する発泡樹脂部材の剛性を高くすることで抑制することができる。しかしながら、シートパッドを構成する発泡樹脂部材の硬度を完全に制御して製造することは極めて困難で、発泡体の硬度にばらつきが必然的に生じることから、カバーリング時のシートパッドの変形を完全に防止することは困難である。また、シートパッド自体が発泡樹脂部材により構成されるため、その弾性的な変形を防ぐことはできないことから、カバーリング時のシートパッドの変形を完全に防止することは困難である。このようなシートパッドの変形を防止するために、カバーリングを行う際にシートパッドの変形し易い部分に別に用意した部品を接着等してその剛性を高めることが行われているが、作業工数が増大するばかりでなく、作業者毎に部品の取付精度にばらつきが生じ、一定の品質を維持できない問題が発生することが懸念される。 Here, since the seat cover is required to be stretched so as not to be loosened with respect to the seat pad formed in the required design shape, as in Patent Document 1, a fabric, synthetic leather, leather, or the like is used. By pulling the seam allowance of the seat cover formed so as to sew the skin material into a bag shape into the hog ring groove formed in the seat pad, the seat cover is stretched without slack with respect to the surface shape of the seat pad. .. If the outer peripheral edge of the seat pad is deformed when such a bag-shaped seat cover is put on the seat pad or when the seam allowance of the skin material is pulled into the groove for hog ring, the design of the seat pad is impaired. It ends up. Such deformation of the seat pad can be suppressed by increasing the rigidity of the foamed resin member constituting the outer peripheral edge side of the seat pad such as the upper end portion and the side portion of the seat pad, as in Patent Document 1 described above. it can. However, it is extremely difficult to completely control the hardness of the foamed resin member constituting the seat pad, and the hardness of the foam inevitably varies. Therefore, the seat pad is completely deformed during covering. It is difficult to prevent. Further, since the seat pad itself is made of a foamed resin member, its elastic deformation cannot be prevented, so that it is difficult to completely prevent the seat pad from being deformed at the time of covering. In order to prevent such deformation of the seat pad, when covering is performed, separately prepared parts are adhered to the easily deformable part of the seat pad to increase its rigidity, but the work man-hours are increased. Not only the number of parts increases, but also the mounting accuracy of parts varies from worker to worker, and there is a concern that a problem that a constant quality cannot be maintained may occur.

また、近年は、シートデザインに対する要求の高まりを受け、シートパッドを複雑な曲面形状を有する立体形状に形成されることがあり、このようなケースではシートパッドの変形が起き易くなる。またシートパッドのデザイン性が高まるにつれ、肉厚が部分的に極めて薄くなる立体形状に形成されることがあり、このような場合は、カバーリング時のシートパッドの変形に限らず、例えば乗員によりシートパッドの外周縁が押されるなどによってシートパッドの変形を生じ易い問題が指摘される。 Further, in recent years, in response to increasing demand for seat design, the seat pad may be formed into a three-dimensional shape having a complicated curved surface shape, and in such a case, the seat pad is likely to be deformed. Further, as the design of the seat pad is improved, the wall thickness may be partially formed into a three-dimensional shape, which is not limited to the deformation of the seat pad at the time of covering, for example, by the occupant. It has been pointed out that the seat pad is likely to be deformed when the outer peripheral edge of the seat pad is pressed.

すなわち本発明は、パッド基材の変形を効果的に防止し得る車両用のシートパッドを提供することを目的とする。 That is, an object of the present invention is to provide a seat pad for a vehicle that can effectively prevent deformation of the pad base material.

前記課題を解決し、所期の目的を達成するため、第１の発明は、
発泡樹脂部材によりパッド基材が形成された車両用のシートパッドにおいて、
前記パッド基材の湾曲した外周縁に倣うよう形成した補強部材が、当該外周縁に沿うよう当該パッド基材の外表面側に埋設されていることを要旨とする。
このように、パッド基材の外周縁に沿うよう補強部材を外表面側に埋設することにより、パッド基材を剛性の高い高密度な発泡樹脂部材を形成することなく、パッド基材の剛性を高め外周縁が変形するのを効果的に防止することができる。更に、パッド基材に補強部材を埋設することで、変形を防止する部材を別に取り付ける必要がないから、作業工数を低減できると共に一定の品質を維持することができる。 In order to solve the above-mentioned problems and achieve the intended purpose, the first invention
In a vehicle seat pad in which a pad base material is formed of a foamed resin member,
The gist is that a reinforcing member formed so as to imitate the curved outer peripheral edge of the pad base material is embedded on the outer surface side of the pad base material along the outer peripheral edge.
In this way, by embedding the reinforcing member on the outer surface side along the outer peripheral edge of the pad base material, the rigidity of the pad base material can be increased without forming a high-density foamed resin member having high rigidity. It is possible to effectively prevent the raised outer peripheral edge from being deformed. Further, by embedding the reinforcing member in the pad base material, it is not necessary to separately attach a member for preventing deformation, so that the work man-hours can be reduced and a certain quality can be maintained.

第２の発明は、
前記パッド基材の上部には、上方および前方に開放する凹形状に形成されたヘッドレスト装着部が設けられ、
前記ヘッドレスト装着部の前方の開口縁および上方の開口縁に倣う形状に形成された前記補強部材が当該ヘッドレスト装着部に埋設されていることを要旨とする。
このように、ヘッドレスト装着部の前方の開口縁および上方の開口縁に倣う形状に形成した補強部材を埋設することで、ヘッドレスト装着部の形状保持性を高めつつシートパッドのデザイン性を向上することができる。 The second invention is
A headrest mounting portion formed in a concave shape that opens upward and forward is provided on the upper portion of the pad base material.
The gist is that the reinforcing member formed in a shape that imitates the front opening edge and the upper opening edge of the headrest mounting portion is embedded in the headrest mounting portion.
In this way, by embedding a reinforcing member formed in a shape that imitates the front opening edge and the upper opening edge of the headrest mounting portion, the shape retention of the headrest mounting portion is improved and the design of the seat pad is improved. Can be done.

第３の発明は、
前記補強部材は、前記パッド基材の外周左右側部の前縁から外周上部の上縁に亘って延在するよう形成されていることを要旨とする。
このように、パッド基材の外周左右側部の前縁から外周上部の前縁に亘って延在する形状に補強部材を形成することで、パッド基材の上部側の剛性を高めることができる。 The third invention is
It is a gist that the reinforcing member is formed so as to extend from the front edge of the outer peripheral left and right side portions of the pad base material to the upper edge of the outer peripheral upper portion.
In this way, by forming the reinforcing member in a shape extending from the front edge of the outer peripheral left and right side portions of the pad base material to the front edge of the upper outer circumference, the rigidity of the upper side of the pad base material can be increased. ..

第４の発明は、
前記補強部材は、前記パッド基材の外周左側部の前縁に倣う左側補強部と、前記パッド基材の外周右側部の前縁に倣う右側補強部とを補強支持部で連結するよう構成されたことを要旨とする。
このように、左右の補強部を補強支持部で連結するよう構成することで、補強部材のねじれ剛性を高めることができ、パッド基材をより安定的に補強することができる。 The fourth invention is
The reinforcing member is configured to connect a left side reinforcing portion that follows the front edge of the outer peripheral left side portion of the pad base material and a right side reinforcing portion that follows the front edge of the outer peripheral right side portion of the pad base material with a reinforcing support portion. The gist is that.
By connecting the left and right reinforcing portions with the reinforcing support portions in this way, the torsional rigidity of the reinforcing member can be increased, and the pad base material can be reinforced more stably.

第５の発明は、
前記補強支持部は、前記パッド基材を支持するシートフレームの前側に位置するよう設けられると共に、当該補強支持部において左右に離間する複数箇所に後方へ突出する支持片が形成され、前記パッド基材を介してシートフレームにより当該支持片を支持し得るよう構成されていることを要旨とする。
このように、補強支持部において左右に離間する複数箇所に支持片を形成してシートフレームにより支持し得るようにすることで、補強部材自体の変形を効果的に防止できる。
The fifth invention is
The reinforcing support portion is provided so as to be located on the front side of the seat frame that supports the pad base material, and support pieces projecting rearward are formed at a plurality of locations separated from each other on the left and right sides of the reinforcing support portion. The gist is that the support piece can be supported by the seat frame via the material.
In this way, by forming support pieces at a plurality of locations separated from each other on the left and right sides of the reinforcing support portion so that the reinforcing members can be supported by the seat frame, deformation of the reinforcing member itself can be effectively prevented.

本発明によれば、パッド基材の変形を効果的に防止することができる。 According to the present invention, deformation of the pad base material can be effectively prevented.

本発明のシートパッドからヘッドレストを分離した状態を示す正面図である。It is a front view which shows the state which separated the headrest from the seat pad of this invention. シートパッドにおけるヘッドレスト装着部を拡大して示す要部拡大正面図である。It is an enlarged front view of the main part which shows the headrest mounting part in the seat pad in an enlarged manner. シートパッドにおけるヘッドレスト装着部を拡大して示す要部拡大平面図である。It is an enlarged plan view of the main part which shows the headrest mounting part in the seat pad in an enlarged manner. (a)は補強部材の正面図であり、(b)は補強部材の平面図である。(a) is a front view of the reinforcing member, and (b) is a plan view of the reinforcing member. 補強部材を後方右下方から見た状態で示す斜視図である。It is a perspective view which shows the reinforcing member as seen from the rear right lower part. 補強部材の第１の支持片の形成位置でシートパッドを縦断した切断部端面図である。It is an end view of the cut portion which longitudinally crossed the seat pad at the formation position of the 1st support piece of a reinforcing member. 車両用のシートを示す斜視図である。It is a perspective view which shows the seat for a vehicle.

次に、本発明に係る車両用のシートパッドにつき、好適な実施例を挙げて、添付図面を参照して以下に説明する。なお、車両用のシートパッドとして、乗用車等の乗員室内に設置されるシートのシートバックに用いられるものを例にして説明するが、これに限られるものではない。なお、本発明において、シートパッドを基準として乗員の背中を支持する支持面側を「前」とすると共に当該支持面の裏側を「後」とする。また、シートパッドに乗員が着座した際の乗員の右腕側となる側を「右」とすると共に左腕側となる側を「左」とする。 Next, the seat pad for a vehicle according to the present invention will be described below with reference to the accompanying drawings with reference to suitable examples. The seat pads for vehicles, which are used for the seat backs of seats installed in passenger cars such as passenger cars, will be described as an example, but the present invention is not limited thereto. In the present invention, the support surface side that supports the back of the occupant is referred to as "front" and the back side of the support surface is referred to as "rear" with reference to the seat pad. Further, the side that becomes the right arm side of the occupant when the occupant sits on the seat pad is defined as "right", and the side that becomes the left arm side is defined as "left".

本発明に係るシートパッド１０は、ウレタン樹脂等の発泡樹脂原料をシートバックの外形形状に合わせて発泡成形させて形成されたパッド基材１２と、当該パッド基材１２に埋設されると共にパッド基材１２の外周縁に倣うよう形成した補強部材３０とを備えている。そして、シートの骨格を形成するシートフレームＳＦ(図６参照)に対して、全体を前側から覆うようにパッド基材１２を被せた状態でシートフレームＳＦに支持されるようになっている。このパッド基材１２は、図１に示すように、前面に形成された溝部１２ａにより乗員の上体を支持する複数のサポート部に区分するよう構成されている。具体的には、パッド基材１２は、乗員の上体を後方から支持する中央サポート部１４と、中央サポート部１４の左右側部から前方へ張り出して乗員の上体を横から支持する左右のサイドサポート部１６とを有する所謂バケットシート形状に形成されている。より細かくは、中央サポート部１４は、乗員の背中を主に支持する上側のサポート領域１４ａと、乗員の腰部周辺を主に支持する下側のサポート領域１４ｂとを有しており、左右のサイドサポート部１６の夫々は、乗員の肩周り周辺部を横から主に支持する上側のサポート領域１６ａと、乗員の腰部周辺を主に支持する下側のサポート領域１６ｂとを有するよう構成されている。そして、中央サポート部１４と左右のサイドサポート部１６の境界部分および各サポート部１４,１６における各サポート領域１４ａ,１４ｂ,１６ａ,１６ｂの境界部分に前記溝部１２ａを設けるよう構成され、当該溝部１２ａの適宜位置に、シートカバーＳＣ(図６参照)の固定用の固定部材(図示せず)が配置されている。ここで、シートカバーＳＣは、各サポート部１４,１６(サポート領域１４ａ,１４ｂ,１６ａ,１６ｂ)の形状に合わせて形成した複数の表皮材を縫い合わせることによりパッド基材１２の外表面に密着する袋状に形成され、当該シートカバーＳＣをパッド基材１２に被せた状態で、表皮材の縫い代を前側からパッド基材１２の溝部１２ａに引き込んで固定部材に固定することで、シートカバーＳＣをパッド基材１２に弛みなく固定し得るようになっている。 The seat pad 10 according to the present invention includes a pad base material 12 formed by foam-molding a foamed resin raw material such as urethane resin according to the outer shape of the seat back, and a pad base material 12 embedded in the pad base material 12 and a pad base. It is provided with a reinforcing member 30 formed so as to imitate the outer peripheral edge of the material 12. Then, the sheet frame SF (see FIG. 6) forming the skeleton of the sheet is supported by the sheet frame SF in a state where the pad base material 12 is covered so as to cover the entire sheet from the front side. As shown in FIG. 1, the pad base material 12 is configured to be divided into a plurality of support portions that support the upper body of the occupant by the groove portions 12a formed on the front surface. Specifically, the pad base material 12 has a central support portion 14 that supports the occupant's upper body from the rear, and left and right that project forward from the left and right side portions of the central support portion 14 to support the occupant's upper body from the side. It is formed in a so-called bucket seat shape having a side support portion 16. More specifically, the central support portion 14 has an upper support area 14a that mainly supports the back of the occupant and a lower support area 14b that mainly supports the periphery of the occupant's lumbar region, and has left and right side supports. Each of the portions 16 is configured to have an upper support region 16a that mainly supports the peripheral portion around the shoulder of the occupant from the side and a lower support region 16b that mainly supports the periphery of the lumbar region of the occupant. Then, the groove portion 12a is provided at the boundary portion between the central support portion 14 and the left and right side support portions 16 and the boundary portions of the support regions 14a, 14b, 16a, 16b in the support portions 14, 16, and the groove portion 12a is provided. A fixing member (not shown) for fixing the seat cover SC (see FIG. 6) is arranged at an appropriate position. Here, the seat cover SC adheres to the outer surface of the pad base material 12 by sewing a plurality of skin materials formed according to the shapes of the support portions 14, 16 (support regions 14a, 14b, 16a, 16b). The seat cover SC is formed in a bag shape, and the seat cover SC is fixed to the fixing member by pulling the seam allowance of the skin material from the front side into the groove portion 12a of the pad base material 12 in a state where the seat cover SC is covered with the pad base material 12. It can be fixed to the pad base material 12 without slack.

また、パッド基材１２の上部(中央サポート部１４の上部)には、乗員の頭部を支持するヘッドレストＨＲを取り付けるヘッドレスト装着部１８が設けられている。このヘッドレスト装着部１８には、上下に貫通するステー挿通孔２０が左右に離間する位置に設けられており、ヘッドレストＨＲから下方に延在する支持ステーＨＲａを上方からステー挿通孔２０に挿入し得るよう構成されている。なお、ステー挿通孔２０に挿通された支持ステーＨＲａは、前記シートフレームＳＦに設けられた図示しないステー固定部に支持されるようになっている。 Further, a headrest mounting portion 18 for attaching the headrest HR that supports the head of the occupant is provided on the upper portion of the pad base material 12 (the upper portion of the central support portion 14). The headrest mounting portion 18 is provided with stay insertion holes 20 penetrating vertically at positions separated from each other to the left and right, and the support stay HRa extending downward from the headrest HR can be inserted into the stay insertion holes 20 from above. It is configured as. The support stay HRa inserted through the stay insertion hole 20 is supported by a stay fixing portion (not shown) provided in the seat frame SF.

ここで、このヘッドレスト装着部１８は、前記中央サポート部１４よりも上方に延在してヘッドレストＨＲの左右側部に対向する前記左右のサイドサポート部１６と、当該中央サポート部１４の上部において左右のサイドサポート部１６の後端部に連設する支持壁部２６とにより前方および上方に開口する凹形状に形成されている。すなわち、ヘッドレスト装着部１８にヘッドレストＨＲの下部側を収容した状態で取り付け得るようになっており、シートパッド１０とヘッドレストＨＲとが連続した一体のデザイン形状を形成するようになっている。このように、前記左右のサイドサポート部１６は、ヘッドレストＨＲにより支持された乗員の側頭部を支持する機能を併せ持った部位である。なお、以下の説明において、左右のサイドサポート部１６の内で、ヘッドレスト装着部１８を形成する部位を左側支持壁部２２および右側支持壁部２４と、左右のサイドサポート部１６の後端部に連設する支持壁部２６を後側支持壁部２６と特に指称する場合がある。すなわち、左側支持壁部２２がパッド基材１２の外周左側部を形成し、右側支持壁部２４がパッド基材１２の外周右側部を形成している。 Here, the headrest mounting portion 18 extends above the central support portion 14 and faces the left and right side portions of the headrest HR, and the left and right side support portions 16 and the left and right above the central support portion 14. It is formed in a concave shape that opens forward and upward by a support wall portion 26 that is continuously provided at the rear end portion of the side support portion 16. That is, the headrest mounting portion 18 can be mounted in a state where the lower side of the headrest HR is accommodated, and the seat pad 10 and the headrest HR form a continuous integrated design shape. As described above, the left and right side support portions 16 are portions having a function of supporting the temporal region of the occupant supported by the headrest HR. In the following description, among the left and right side support portions 16, the portions forming the headrest mounting portion 18 are connected to the left side support wall portion 22 and the right side support wall portion 24 and the rear end portions of the left and right side support portions 16. The support wall portion 26 to be used may be particularly referred to as a rear support wall portion 26. That is, the left side support wall portion 22 forms the outer peripheral left side portion of the pad base material 12, and the right side support wall portion 24 forms the outer peripheral right side portion of the pad base material 12.

ここで、左側支持壁部２２、右側支持壁部２４および後側支持壁部２６の外側面は、ヘッドレスト装着部１８の開口縁に近づくにつれて厚みが漸減する丸みを帯びた曲面形状に形成されて、ヘッドレスト装着部１８の開口縁の断面が鋭角状をなすよう形成されている。また、左側支持壁部２２および右側支持壁部２４の前縁部は、上端部から下方に向かうにつれて相互に離間する傾斜状に形成されて、当該ヘッドレスト装着部１８の前方開口が略台形状をなすよう形成されている。また左側支持壁部２２および右側支持壁部２４の上縁部は、前端部から後方に向かうにつれて僅かに近接するよう形成され、後側支持壁部２６の上縁部は、左右方向の中心で後方に僅かに突出する円弧状に形成されると共に、左側支持壁部２２、右側支持壁部２４の上縁部と後側支持壁部２６の上縁部との連設部３８が円弧状に湾曲して連続した湾曲形状に形成されている。 Here, the outer surfaces of the left side support wall portion 22, the right side support wall portion 24, and the rear side support wall portion 26 are formed in a rounded curved surface shape whose thickness gradually decreases as the headrest mounting portion 18 approaches the opening edge. , The cross section of the opening edge of the headrest mounting portion 18 is formed to form an acute angle. Further, the front edge portions of the left side support wall portion 22 and the right side support wall portion 24 are formed in an inclined shape so as to be separated from each other from the upper end portion downward, and the front opening of the headrest mounting portion 18 has a substantially trapezoidal shape. It is formed to make an eggplant. Further, the upper edge portions of the left side support wall portion 22 and the right side support wall portion 24 are formed so as to be slightly closer to each other from the front end portion toward the rear, and the upper edge portion of the rear side support wall portion 26 is at the center in the left-right direction. It is formed in an arc shape that slightly protrudes rearward, and the continuous portion 38 between the upper edge portion of the left side support wall portion 22 and the right side support wall portion 24 and the upper edge portion of the rear side support wall portion 26 is formed in an arc shape. It is curved and formed into a continuous curved shape.

前記補強部材３０は、図２、図３に示すように、パッド基材１２の外周上部の上縁に沿うよう当該パッド基材１２の外表面側に埋設されており、前記ヘッドレスト装着部１８を補強してその変形を防止するよう構成される。この補強部材３０は、ヘッドレスト装着部１８の前方の開口縁(左側支持壁部２２の前端縁、右側支持壁部２４の前端縁)および上方の開口縁(左側支持壁部２２の上端縁、右側支持壁部２４および後側支持壁部２６の上端縁)に倣う湾曲形状に形成されており、当該ヘッドレスト装着部１８の外周縁を補強して座屈等の変形を防止するよう構成される。 As shown in FIGS. 2 and 3, the reinforcing member 30 is embedded on the outer surface side of the pad base material 12 so as to be along the upper edge of the upper periphery of the pad base material 12, and the headrest mounting portion 18 is formed. It is configured to be reinforced to prevent its deformation. The reinforcing member 30 has an opening edge in front of the headrest mounting portion 18 (front end edge of the left side support wall portion 22, front end edge of the right side support wall portion 24) and an upper opening edge (upper end edge of the left side support wall portion 22, right side). It is formed in a curved shape that follows the support wall portion 24 and the upper end edge of the rear support wall portion 26), and is configured to reinforce the outer peripheral edge of the headrest mounting portion 18 to prevent deformation such as buckling.

具体的に、本実施例の補強部材３０は、ヘッドレスト装着部１８の前端縁を補強する左側補強部３２および右側補強部３３と、ヘッドレスト装着部１８の上端縁を補強する上側補強部４４とを備えており、ヘッドレスト装着部１８の外周左右側部の前縁から外周上部の上縁に亘って延在する湾曲形状に形成されている。ここで、左側補強部３２は、パッド基材１２の外周左側部の前縁に倣うようヘッドレスト装着部１８における左側支持壁部２２の前縁に沿って延在し、右側補強部３３は、パッド基材１２の外周右側部の前縁に倣うようヘッドレスト装着部１８における右側支持壁部２４の前縁に沿って延在するよう形成されている。なお、この補強部材３０は、ポリプロピレン等の合成樹脂により一体成形された左右対称の部材として構成されている。 Specifically, the reinforcing member 30 of the present embodiment includes a left side reinforcing portion 32 and a right side reinforcing portion 33 that reinforce the front end edge of the headrest mounting portion 18, and an upper reinforcing portion 44 that reinforces the upper end edge of the headrest mounting portion 18. It is provided and is formed in a curved shape extending from the front edge of the outer peripheral left and right side portions of the headrest mounting portion 18 to the upper edge of the upper outer circumference. Here, the left side reinforcing portion 32 extends along the front edge of the left side support wall portion 22 in the headrest mounting portion 18 so as to follow the front edge of the outer peripheral left side portion of the pad base material 12, and the right side reinforcing portion 33 extends along the front edge of the pad base material 12. It is formed so as to extend along the front edge of the right side support wall portion 24 in the headrest mounting portion 18 so as to follow the front edge of the outer peripheral right portion of the base material 12. The reinforcing member 30 is configured as a symmetrical member integrally molded of a synthetic resin such as polypropylene.

前記左側補強部３２および右側補強部３３の夫々は、内側補強壁部３４と、当該内側補強壁部３４の外側に対向する外側補強壁部３６と、当該当該内側補強壁部３４および当該外側補強壁部３６の前端部を連結すると共に対応する左側支持壁部２２および右側支持壁部２４の前端縁に沿って延在する連設部３８とを備えている。そして、補強部材３０を埋設した状態で、左側補強部３２および右側補強部３３の各内側補強壁部３４が、対応する左側支持壁部２２および右側支持壁部２４においてヘッドレスト装着部１８に臨む壁面側に位置し、左側補強部３２および右側補強部３３の各外側補強壁部３６が、対応する左側支持壁部２２および右側支持壁部２４の外側面側に位置し、左側補強部３２および右側補強部３３の連設部３８が、対応する左側支持壁部２２および右側支持壁部２４の前端縁(外表面)に近接位置するよう構成されている。また、連設部３８の縁部は円弧状に湾曲するよう形成され、当該左側補強部３２および右側補強部３３の剛性を高めるよう構成してある。更に、前記内側補強壁部３４と外側補強壁部３６との間に、当該内側補強壁部３４および当該外側補強壁部３６を連結する支持部４０(図５参照)が設けられており、内側補強壁部３４および外側補強壁部３６が近接または離間するように撓み変形するのを防止するよう構成されている。これにより、左側補強部３２および右側補強部３３が埋設された左側支持壁部２２および右側支持壁部２４の夫々の厚み方向の剛性を高め、当該左側支持壁部２２および右側支持壁部２４の夫々を左右から圧縮するような力の作用に伴う変形を防止している。また、外側補強壁部３６の後端部は、外側に向けて円弧状に湾曲して折り返す第１の湾曲支持部４２が設けられており、外側補強壁部３６の剛性を高めて、左側支持壁部２２および右側支持壁部２４の形状安定性を高めるようにしてある。 Each of the left side reinforcing portion 32 and the right side reinforcing portion 33 includes an inner reinforcing wall portion 34, an outer reinforcing wall portion 36 facing the outside of the inner reinforcing wall portion 34, the inner reinforcing wall portion 34, and the outer reinforcing portion 34. The front end portion of the wall portion 36 is connected and provided with a corresponding left side support wall portion 22 and a continuous portion 38 extending along the front end edge of the right side support wall portion 24. Then, with the reinforcing member 30 embedded, the inner reinforcing wall portions 34 of the left side reinforcing portion 32 and the right side reinforcing portion 33 face the headrest mounting portion 18 in the corresponding left side support wall portion 22 and right side support wall portion 24. The outer reinforcing wall portions 36 of the left side reinforcing portion 32 and the right side reinforcing portion 33 are located on the outer side of the corresponding left side supporting wall portion 22 and the right side supporting wall portion 24, and the left side reinforcing portion 32 and the right side are located. The continuous portion 38 of the reinforcing portion 33 is configured to be located close to the front end edge (outer surface) of the corresponding left side support wall portion 22 and the right side support wall portion 24. Further, the edge portion of the continuous portion 38 is formed so as to be curved in an arc shape, and is configured to increase the rigidity of the left side reinforcing portion 32 and the right side reinforcing portion 33. Further, a support portion 40 (see FIG. 5) for connecting the inner reinforcing wall portion 34 and the outer reinforcing wall portion 36 is provided between the inner reinforcing wall portion 34 and the outer reinforcing wall portion 36, and is provided inside. It is configured to prevent the reinforcing wall portion 34 and the outer reinforcing wall portion 36 from bending and deforming so as to be close to or separated from each other. As a result, the rigidity of the left side support wall portion 22 and the right side support wall portion 24 in which the left side reinforcement portion 32 and the right side reinforcement portion 33 are embedded is increased in the thickness direction of each of the left side support wall portion 22 and the right side support wall portion 24. It prevents deformation due to the action of force that compresses each from the left and right. Further, the rear end portion of the outer reinforcing wall portion 36 is provided with a first curved support portion 42 that is curved outward in an arc shape and folded back, so that the rigidity of the outer reinforcing wall portion 36 is increased to support the left side. The shape stability of the wall portion 22 and the right side support wall portion 24 is improved.

前記上側補強部４４は、左側支持壁部２２および右側支持壁部２４の上端縁に沿って延在する第１の上側補強壁部４６と、後側支持壁部２６の上端縁に沿って延在する第２の上側補強壁部４８とを備えて平面視でコ字状をなすよう形成されており、補強部材３０を埋設した状態で、当該第１の上側補強壁部４６および第２の上側補強壁部４８が対応する左側支持壁部２２、右側支持壁部２４および後側支持壁部２６の上端縁(外表面)に近接位置するよう構成されている。また、第１の上側補強壁部４６および第２の上側補強壁部４８の外側端部には、下側に向けて円弧状に湾曲して折り返す第２の湾曲支持部５０が設けられており、上側補強部４４の剛性を高めてその変形を防止するようになっている。 The upper reinforcing portion 44 extends along the upper end edge of the first upper reinforcing wall portion 46 extending along the upper end edge of the left side support wall portion 22 and the right side support wall portion 24, and the upper end edge of the rear side support wall portion 26. It is formed so as to form a U-shape in a plan view with the existing second upper reinforcing wall portion 48, and in a state where the reinforcing member 30 is embedded, the first upper reinforcing wall portion 46 and the second upper reinforcing wall portion 46 and the second The upper reinforcing wall portion 48 is configured to be located close to the upper end edge (outer surface) of the corresponding left side support wall portion 22, the right side support wall portion 24, and the rear side support wall portion 26. Further, at the outer end portions of the first upper reinforcing wall portion 46 and the second upper reinforcing wall portion 48, a second curved support portion 50 that is curved downward in an arc shape and folded back is provided. , The rigidity of the upper reinforcing portion 44 is increased to prevent its deformation.

また、補強部材３０は、図４、図５に示すように、前記左側補強部３２および右側補強部３３の各内側補強壁部３４の後端部に連設する補強支持部５２が左右方向に延在するよう設けられている。この補強支持部５２には、前後に貫通する貫通孔５４が左右方向に離間する複数箇所(実施例では６箇所)で開口するよう設けられており、パッド基材１２を形成する発泡樹脂原料が貫通孔５４に入り込んだ状態で発泡硬化することで、補強部材３０とパッド基材１２とが結合して両部材の一体性を高めるようにしてある。 Further, as shown in FIGS. 4 and 5, the reinforcing member 30 has a reinforcing support portion 52 connected to the rear end portions of the inner reinforcing wall portions 34 of the left side reinforcing portion 32 and the right side reinforcing portion 33 in the left-right direction. It is provided to be extended. The reinforcing support portion 52 is provided with through holes 54 penetrating in the front-rear direction so as to open at a plurality of locations (6 locations in the embodiment) separated in the left-right direction, and the foamed resin raw material forming the pad base material 12 is provided. By foaming and hardening while entering the through hole 54, the reinforcing member 30 and the pad base material 12 are combined to enhance the integrity of both members.

また、補強支持部５２には、前方へ突出する突出部５６が左右方向に離間する複数箇所(実施例では３箇所)に形成されると共に、各突出部５６の突出端部に前後に貫通する係合孔５６ａが開口するよう設けられている。本実施例では、補強支持部５２における左右の中間および左右の両端部に位置するよう突出部５６を夫々設けてある。そして、補強部材３０をパッド基材１２に埋設した状態で、この突出部５６の係合孔５６ａがヘッドレスト装着部１８の下部前面側に露出するよう構成されており、シートを装飾する飾り部材Ｋ(図６参照)に設けた係合部Ｋａを係合孔５６ａに前側から差し込んで係合させることにより、飾り部材Ｋをパッド基材１２に取り付け得るようになっている。なお、飾り部材Ｋは、前記突出部５６の係合孔５６ａに合わせて形成されたシートカバーＳＣの開口部を挿通した状態で係合部を差し込んで係合されるものである。 Further, in the reinforcing support portion 52, projecting portions 56 projecting forward are formed at a plurality of locations (three locations in the embodiment) separated in the left-right direction, and penetrate the projecting ends of each projecting portion 56 in the front-rear direction. The engagement hole 56a is provided so as to open. In this embodiment, protrusions 56 are provided so as to be located in the middle of the left and right sides of the reinforcing support portion 52 and at both ends of the left and right sides. Then, in a state where the reinforcing member 30 is embedded in the pad base material 12, the engaging hole 56a of the protruding portion 56 is configured to be exposed on the lower front side of the headrest mounting portion 18, and the decorative member K for decorating the sheet. The decorative member K can be attached to the pad base material 12 by inserting the engaging portion Ka provided in (see FIG. 6) into the engaging hole 56a from the front side and engaging the engaging portion Ka. The decorative member K is engaged by inserting the engaging portion with the opening of the seat cover SC formed in accordance with the engaging hole 56a of the protruding portion 56 inserted.

また、前記補強支持部５２の後面側には、左右方向に離間する複数箇所(実施例では６箇所)に、後方へ突出する支持片５８,６０が形成されている。本実施例では、補強支持部５２の後面側において、各突出部５６を挟む左右に隣接位置するよう前記支持片５８,６０を夫々設けてある。すなわち、左右の中間に位置する突出部５６に対応して一対の第１の支持片５８が設けられ、左右の両端部に位置する突出部５６の夫々に対応して一対の第２の支持片６０が設けられている。各支持片５８,６０は、シートパッド１０を支持する前記シートフレームＳＦの前側に位置するよう設けられており、補強部材３０(補強支持部５２)が後方へ撓むよう変形した際に、パッド基材１２を挟んでシートフレームＳＦにより各支持片５８,６０が支持されることで、当該撓み変形を抑制して補強部材３０の破損を防止するようになっている。 Further, on the rear surface side of the reinforcing support portion 52, support pieces 58, 60 projecting rearward are formed at a plurality of locations (six locations in the embodiment) that are separated in the left-right direction. In this embodiment, the support pieces 58 and 60 are provided on the rear surface side of the reinforcing support portion 52 so as to be adjacent to each other on the left and right sides of the reinforcing support portions 56, respectively. That is, a pair of first support pieces 58 are provided corresponding to the protrusions 56 located in the middle of the left and right, and a pair of second support pieces correspond to each of the protrusions 56 located at both left and right ends. 60 is provided. Each of the support pieces 58 and 60 is provided so as to be located on the front side of the seat frame SF that supports the seat pad 10, and when the reinforcing member 30 (reinforcing support portion 52) is deformed so as to bend rearward, the pad base By supporting the support pieces 58 and 60 by the seat frame SF with the material 12 sandwiched between them, the bending deformation is suppressed and the reinforcing member 30 is prevented from being damaged.

ここで、第１の支持片５８は、補強支持部５２の上下方向に延在する板状に形成されると共に後端部に円弧状凹部５８ａが形成されている。ここで、円弧状凹部５８ａは、シートフレームＳＦを構成する金属管の管径に合わせた曲率で形成されており、乗員がシートパッド１０に凭れる様な姿勢を採った場合などに補強支持部５２の中央部が後方へ撓むことで、パッド基材１２を挟んでシートフレームＳＦが第１の支持片５８の円弧状凹部５８ａに噛み合うようになっている。また、第２の支持片６０は、補強支持部５２の上下方向に延在する板状に形成されると共に、その後端部が下方へ向かうにつれて後方へ傾斜する傾斜状に形成されており、パッド基材１２を挟んで第２の支持片６０の傾斜部がシートフレームＳＦにより支持されるようになっている。 Here, the first support piece 58 is formed in a plate shape extending in the vertical direction of the reinforcing support portion 52, and an arc-shaped recess 58a is formed at the rear end portion. Here, the arcuate recess 58a is formed with a curvature that matches the diameter of the metal pipe constituting the seat frame SF, and is a reinforcing support portion when the occupant takes a posture of leaning against the seat pad 10. As the central portion of the 52 bends rearward, the seat frame SF meshes with the arcuate recess 58a of the first support piece 58 with the pad base material 12 interposed therebetween. Further, the second support piece 60 is formed in a plate shape extending in the vertical direction of the reinforcing support portion 52, and is also formed in an inclined shape in which the rear end portion is inclined rearward as it goes downward. The inclined portion of the second support piece 60 with the base material 12 interposed therebetween is supported by the seat frame SF.

次に、前述したシートパッド１０の製造方法に関して概略説明する。本発明に係るシートパッド１０は、型締めした際にパッド基材１２の形状に合わせたキャビティを形成する複数の成形型内に補強部材３０を配置した状態で、ウレタン樹脂等の発泡樹脂原料をキャビティ内に充填して、発泡樹脂原料を発泡硬化させることにより形成される。ここで、成形型の内で下成形型の型面が、シートパッド１０(パッド基材１２)の前面側に合わせた形状に形成され、シートパッド１０(パッド基材１２)の前面が下側を向く寝かせた姿勢で発泡成形が行われるよう構成される。 Next, the above-mentioned manufacturing method of the seat pad 10 will be outlined. In the seat pad 10 according to the present invention, a foamed resin raw material such as urethane resin is used in a state where the reinforcing members 30 are arranged in a plurality of molding molds that form a cavity that matches the shape of the pad base material 12 when the mold is molded. It is formed by filling the cavity and foam-curing the foamed resin raw material. Here, the mold surface of the lower molding mold is formed in a shape that matches the front side of the seat pad 10 (pad base material 12), and the front surface of the seat pad 10 (pad base material 12) is on the lower side. It is configured so that foam molding is performed in a lying position facing.

また、下成形型には、パッド基材１２に埋設される補強部材３０の配置位置(ヘッドレスト装着部１８)に対応する位置に、キャビティ内に突出する位置決め突部が形成されている。成形型を型開きした状態において、補強部材３０における左側補強部３２および右側補強部３３の前縁部(前述した第１の湾曲支持部４２)を下成形型の型面に向き合わせた下向きの姿勢で位置決め突部と係合することで、キャビティの所定位置に補強部材３０が配置されるようになっている。補強部材３０を所定位置に位置決めした後に成形型を型閉めし、当該成形型のキャビティ内に発泡樹脂原料を充填して発泡硬化させることで、パッド基材１２(ヘッドレスト装着部１８)に補強部材３０が埋設されたシートパッド１０を一体成形することができる。 Further, in the lower molding die, a positioning protrusion projecting into the cavity is formed at a position corresponding to the arrangement position (headrest mounting portion 18) of the reinforcing member 30 embedded in the pad base material 12. In the state where the molding die is opened, the front edge portions (the first curved support portion 42 described above) of the left side reinforcing portion 32 and the right side reinforcing portion 33 of the reinforcing member 30 face the mold surface of the lower molding die and face downward. By engaging with the positioning protrusion in the posture, the reinforcing member 30 is arranged at a predetermined position of the cavity. After positioning the reinforcing member 30 at a predetermined position, the molding die is closed, and the cavity of the molding die is filled with a foamed resin raw material and foam-cured to form a reinforcing member on the pad base material 12 (headrest mounting portion 18). The seat pad 10 in which the 30 is embedded can be integrally molded.

すなわち、前述した本発明に係る車両用のシートパッド１０によれば、シートパッド１０の外周縁に沿うよう補強部材３０を外表面側に埋設することにより、パッド基材１２の外周縁が補強部材３０により支持され、カバーリング時等にパッド基材１２の外周縁が変形するのを効果的に防止できる。特に、パッド基材１２の外周左右側部の前縁から外周上部の上縁に亘って延在する形状に補強部材３０を形成することで、パッド基材１２の上部側の剛性を高めることができる。また、パッド基材１２を高密度の発泡体により形成することなくパッド基材１２の外周縁に必要な剛性を確保して変形を防止できる。更に、補強部材３０がパッド基材１２に埋設されていることにより、当該パッド基材１２の変形を防止するための部材をパッド基材１２に後工程で取り付ける等の工程が必要なく、作業効率が格段に高くなると共に一定の品質を維持することができる。 That is, according to the vehicle seat pad 10 according to the present invention described above, by embedding the reinforcing member 30 on the outer surface side along the outer peripheral edge of the seat pad 10, the outer peripheral edge of the pad base material 12 is a reinforcing member. It is supported by 30, and can effectively prevent the outer peripheral edge of the pad base material 12 from being deformed during covering or the like. In particular, by forming the reinforcing member 30 in a shape extending from the front edge of the outer peripheral left and right side portions of the pad base material 12 to the upper edge of the upper outer circumference, the rigidity of the upper side of the pad base material 12 can be increased. it can. Further, the pad base material 12 can be prevented from being deformed by ensuring the required rigidity on the outer peripheral edge of the pad base material 12 without forming the pad base material 12 with a high-density foam. Further, since the reinforcing member 30 is embedded in the pad base material 12, there is no need for a step of attaching a member for preventing deformation of the pad base material 12 to the pad base material 12 in a later process, and work efficiency is improved. Can be significantly increased and a certain level of quality can be maintained.

また、パッド基材１２の外表面側に位置するよう補強部材３０を埋設することで、パッド基材１２の肉厚を薄くしても剛性を確保して形状安定性を維持することができる。すなわち、本発明に係るシートパッド１０のように、ヘッドレストＨＲとのデザインの一体性を実現するためにヘッドレスト装着部１８の薄肉状部分を形成した場合でも、ヘッドレスト装着部１８の前方の開口縁および上方の開口縁に倣う形状に形成した補強部材３０を埋設することで、ヘッドレスト装着部１８の剛性を確保することができ、ヘッドレスト装着部１８の形状保持性を高めつつシートパッド１０のデザインを多様化することが容易に実現可能となる。 Further, by embedding the reinforcing member 30 so as to be located on the outer surface side of the pad base material 12, rigidity can be ensured and shape stability can be maintained even if the wall thickness of the pad base material 12 is reduced. That is, even when a thin-walled portion of the headrest mounting portion 18 is formed in order to realize design integrity with the headrest HR as in the seat pad 10 according to the present invention, the opening edge and the front opening edge of the headrest mounting portion 18 and By embedding the reinforcing member 30 formed in a shape that imitates the upper opening edge, the rigidity of the headrest mounting portion 18 can be ensured, and the design of the seat pad 10 is diversified while improving the shape retention of the headrest mounting portion 18. It can be easily realized.

また、補強部材３０の左側補強部３２および右側補強部３３を補強支持部５２で連結するようにしたことで、補強部材３０のねじれ剛性を高めることができる。更に、シートパッド１０を支持するシートフレームＳＦの前側に対応する位置に補強部材３０(補強支持部５２)を埋設すると共に、当該補強部材３０(補強支持部５２)に支持片５８,６０を形成して、当該補強部材３０が後方へ撓むよう変形した際にパッド基材１２を介してシートフレームＳＦで各支持片５８,６０が支持されるようにすることにより、当該補強部材３０の変形を抑制して損傷等を防止することができるから、補強部材３０によるパッド基材１２の補強効果が損なわれることはない。また、乗員がシートパッド１０に凭れる様な姿勢を採った場合などに補強支持部５２の中央部が後方へ撓んだ際に、パッド基材１２を挟んでシートフレームＳＦが第１の支持片５８の円弧状凹部５８ａに噛み合うことで、埋設された補強部材３０がパッド基材１２の所定位置に保持され、パッド基材１２の内部で補強部材３０が位置ズレするような不具合を効果的に防止できる。 Further, by connecting the left side reinforcing portion 32 and the right side reinforcing portion 33 of the reinforcing member 30 with the reinforcing support portion 52, the torsional rigidity of the reinforcing member 30 can be increased. Further, a reinforcing member 30 (reinforcing support portion 52) is embedded at a position corresponding to the front side of the seat frame SF that supports the seat pad 10, and support pieces 58 and 60 are formed in the reinforcing member 30 (reinforcing support portion 52). Then, when the reinforcing member 30 is deformed so as to bend rearward, the support pieces 58 and 60 are supported by the seat frame SF via the pad base material 12, so that the reinforcing member 30 is deformed. Since it can be suppressed and damage or the like can be prevented, the reinforcing effect of the pad base material 12 by the reinforcing member 30 is not impaired. Further, when the central portion of the reinforcing support portion 52 bends backward when the occupant takes a posture of leaning against the seat pad 10, the seat frame SF sandwiches the pad base material 12 and provides the first support. By engaging with the arcuate recess 58a of the piece 58, the embedded reinforcing member 30 is held at a predetermined position of the pad base material 12, and the problem that the reinforcing member 30 is displaced inside the pad base material 12 is effective. Can be prevented.

また、補強部材３０の左右の端部側に位置するよう第２の支持片６０を設けることで、シートパッド１０のサイドサポート部１６(ヘッドレスト装着部１８の左側支持壁部２２や右側支持壁部２４)を後方へ押すような力が作用した場合に、当該パッド基材１２を介してシートフレームＳＦで第２の支持片６０が支持して補強部材３０の変形を抑制することで、当該サイドサポート部１６の変形を抑制でき、サイドサポート部１６の形状保持性を高めることができる。更に、各支持片５８,６０を補強部材３０の突出部５６に対応して設けることで、シートを装飾する飾り部材Ｋに設けた係合部Ｋａを、突出部５６に設けた係合孔５６ａに前側から差し込んだ際に補強部材３０がシートフレームＳＦで支持され、係合部Ｋａを係合孔５６ａに容易に係合することができる。 Further, by providing the second support piece 60 so as to be located on the left and right end sides of the reinforcing member 30, the side support portion 16 of the seat pad 10 (the left side support wall portion 22 and the right side support wall portion 24 of the headrest mounting portion 18) is provided. ) Is applied backward, the second support piece 60 is supported by the seat frame SF via the pad base material 12 to suppress the deformation of the reinforcing member 30, thereby suppressing the deformation of the side support portion. The deformation of the 16 can be suppressed, and the shape retention of the side support portion 16 can be improved. Further, by providing the support pieces 58 and 60 corresponding to the protruding portion 56 of the reinforcing member 30, the engaging portion Ka provided in the decorative member K for decorating the sheet is provided with the engaging hole 56a provided in the protruding portion 56. When the reinforcing member 30 is inserted from the front side, the reinforcing member 30 is supported by the seat frame SF, and the engaging portion Ka can be easily engaged with the engaging hole 56a.

(変更例)
本発明に係る車両用のシートパッドは、実施例に例示した形態に限らず種々の変更が可能である。以下に、変更例の一例を示す。
(１) 車両用シートのシートバックに用いられるシートパッドを例にしたが、これに限られるものではなく、乗員が着座するシートクッションに用いられるシートパッドであってもよい。
(２) 補強部材は左右対称に形成する必要はなく、パッド基材の外周縁に倣う形状に形成されていればよい。また、パッド基材の外周前縁に倣うよう補強部材を形成したが、パッド基材の外周後縁に倣うよう補強部材を形成して当該後縁に沿うようパッド基材の外表面側に補強部材を埋設するようにしてもよい。
(３) 補強部材を合成樹脂により一体成形するようにしたが、金属等により形成してもよく、また複数の部材を組み合わせて補強部材を形成するようにしてもよい。 (Change example)
The seat pad for a vehicle according to the present invention is not limited to the form illustrated in the examples, and various modifications can be made. An example of the modification is shown below.
(1) The seat pad used for the seat back of the vehicle seat is taken as an example, but the present invention is not limited to this, and the seat pad used for the seat cushion on which the occupant sits may be used.
(2) The reinforcing member does not have to be formed symmetrically, and may be formed in a shape that follows the outer peripheral edge of the pad base material. Further, although the reinforcing member was formed to imitate the outer peripheral front edge of the pad base material, the reinforcing member was formed to imitate the outer peripheral trailing edge of the pad base material and reinforced on the outer surface side of the pad base material along the trailing edge. The member may be embedded.
(3) Although the reinforcing member is integrally molded with synthetic resin, it may be formed of metal or the like, or a plurality of members may be combined to form the reinforcing member.

１２パッド基材，１８ヘッドレスト装着部，
２２左側支持壁部(パッド基材の外周左側部)，
２４右側支持壁部(パッド基材の外周右側部)，３０補強部材，３２左側補強部
３３右側補強部，５２補強支持部，５８第１の支持片(支持片)，
６０第２の支持片(支持片)，ＳＦシートフレーム 12 pad base material, 18 headrest mounting part,
22 Left support wall (left side of outer circumference of pad base material),
24 Right side support wall (right side of outer circumference of pad base material), 30 Reinforcing member, 32 Left side reinforcement 33 Right side reinforcement, 52 Reinforcement support, 58 First support piece (support piece),
60 Second support piece (support piece), SF seat frame

Claims

In a vehicle seat pad in which a pad base material is formed of a foamed resin member, and a headrest mounting portion formed in a concave shape that opens upward and forward is provided on the upper portion of the pad base material.
A reinforcing member formed to imitate the curved outer peripheral edge of the headrest mounting portion of the pad base material is embedded on the surface side of the pad base material along the outer peripheral edge.
The reinforcing member, the headrest mounting portion of the right and from the upper edge of the left side of the support wall portion over the upper edge of the rear side support wall portion is formed to extend Rutotomoni, the outer peripheral left portion of the pad substrate It has a left side reinforcing portion that follows the front edge of the pad base material and a right side reinforcing portion that follows the front edge of the outer peripheral right side portion of the pad base material.
Each of the left side reinforcing portion and the right side reinforcing portion has an inner reinforcing wall portion and an outer reinforcing wall portion facing the outside of the inner reinforcing wall portion.
A vehicle seat pad characterized in that a support portion for connecting the inner reinforcing wall portion and the outer reinforcing wall portion is provided between the inner reinforcing wall portion and the outer reinforcing wall portion.

In a vehicle seat pad in which a pad base material is formed of a foamed resin member,
A reinforcing member formed to imitate the curved outer peripheral edge of the pad base material is embedded on the surface side of the pad base material along the outer peripheral edge.
The reinforcing member is configured to connect a left side reinforcing portion that follows the front edge of the outer peripheral left side portion of the pad base material and a right side reinforcing portion that follows the front edge of the outer peripheral right side portion of the pad base material with a reinforcing support portion. With
Each of the left side reinforcing portion and the right side reinforcing portion has an inner reinforcing wall portion and an outer reinforcing wall portion facing the outside of the inner reinforcing wall portion.
A support portion for connecting the inner reinforcing wall portion and the outer reinforcing wall portion is provided between the inner reinforcing wall portion and the outer reinforcing wall portion.
The reinforcing support portion is located on the front side of the seat frame that supports the pad base material, and support pieces projecting rearward are formed at a plurality of locations separated from each other on the left and right sides of the reinforcing support portion, and the support pieces are formed via the pad base material. A seat pad for a vehicle, characterized in that the support piece can be supported by the seat frame.

In a vehicle seat pad in which a pad base material is formed of a foamed resin member,
A reinforcing member formed to imitate the curved outer peripheral edge of the pad base material is embedded on the surface side of the pad base material along the outer peripheral edge.
The reinforcing member is a sheet that supports the pad base material with a left side reinforcing portion that follows the front edge of the outer peripheral left side portion of the pad base material and a right side reinforcing portion that follows the front edge of the outer peripheral right side portion of the pad base material. is configured to be coupled with the reinforcement support portion is formed so as to be positioned on the front side of the frame and adapted to support the reinforcement support portion by the seat frame through the pad substrate Rutotomoni,
Each of the left side reinforcing portion and the right side reinforcing portion has an inner reinforcing wall portion and an outer reinforcing wall portion facing the outside of the inner reinforcing wall portion.
A seat pad for a vehicle, characterized in that a support portion for connecting the inner reinforcing wall portion and the outer reinforcing wall portion is provided between the inner reinforcing wall portion and the outer reinforcing wall portion. ..

The vehicle according to any one of claims 1 to 3, wherein the reinforcing member is formed so as to extend from the front edge of the outer peripheral left and right side portions of the pad base material to the upper edge of the outer peripheral upper portion. Seat pad.