JP7235905B2 - seat pad - Google Patents

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JP7235905B2
JP7235905B2 JP2022031525A JP2022031525A JP7235905B2 JP 7235905 B2 JP7235905 B2 JP 7235905B2 JP 2022031525 A JP2022031525 A JP 2022031525A JP 2022031525 A JP2022031525 A JP 2022031525A JP 7235905 B2 JP7235905 B2 JP 7235905B2
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opening
recess
reinforcing
seat pad
face member
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JP2022066341A (en
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真人 松本
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Inoac Corp
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Inoac Corp
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Description

本発明は、シートパッドに関する。 The present invention relates to seat pads .

特許文献１に開示のシートパッドの製造方法では、発泡成形型において、エアバッグ装置が収容される収容凹部を成形する成形突部を、補強用面材の開口部に挿通し、該補強用面材を成形突部の外面に重ねて固定する。次いで、発泡成形型内で樹脂を発泡させることでパッド本体を成形すると共に、そのパッド本体に補強用面材を一体的に固定する。 In the method for manufacturing a seat pad disclosed in Patent Document 1, in a foam molding die, a molding protrusion that forms a housing recess for housing an airbag device is inserted into an opening of a reinforcing face member , and the reinforcing face is formed. The material is overlaid on the outer surface of the molded protrusion and fixed. Next, the pad body is molded by foaming the resin in the foam mold, and the reinforcing face material is integrally fixed to the pad body.

また、補強用面材を発泡成形型の内面に固定する方法としては、発泡成形型の内面にマグネットを設けると共に、このマグネットと吸着する磁性体を補強用面材に設けて、これら磁性体とマグネットの吸着によって補強用面材を発泡成形型に固定する方法が知られている（例えば、特許文献２参照）。 In addition, as a method of fixing the reinforcing face material to the inner surface of the foaming mold, a magnet is provided on the inner surface of the foaming mold, and a magnetic body that is attracted to the magnet is provided on the reinforcing face material. A method is known in which a reinforcing face member is fixed to a foam mold by attracting a magnet (see, for example, Patent Document 2).

特許第４５４１７７８号公報（段落［００２６］～[００２７]、図５、図７～図８）Japanese Patent No. 4541778 (paragraphs [0026] to [0027], FIGS. 5, 7 to 8) 特開２００１－２５２９３０号公報（段落［００１９］、図１）Japanese Patent Application Laid-Open No. 2001-252930 (paragraph [0019], FIG. 1)

ところで、エアバッグ装置を収容するシートパッドを製造する場合、補強用面材を発泡成形型に磁気吸着により固定する方法では、発泡してきた樹脂が補強用面材と発泡成形型の間に入り込むことを防ぐために、補強用面材の磁性体を開口部の近傍に配置する必要がある。そのため、エアバッグ装置が作動したときに、磁性体が飛散するおそれがあった。 By the way, when manufacturing a seat pad for housing an airbag device, in the method of fixing the reinforcing face material to the foaming mold by magnetic adsorption, the foamed resin may enter between the reinforcing face material and the foaming mold. In order to prevent this, it is necessary to arrange the magnetic material of the reinforcing face material in the vicinity of the opening. Therefore, when the airbag device is activated, there is a risk that the magnetic material will scatter.

本発明は、上記事情に鑑みてなされたもので、エアバッグ装置の作動時に磁性体を飛散し難くすることが可能なシートパッドの提供を目的とする。 SUMMARY OF THE INVENTION It is an object of the present invention to provide a seat pad that can prevent the magnetic material from scattering when the airbag device is activated.

上記目的を達成するためになされた発明の第１態様は、エアバッグ装置を収容する収容凹部を備えたパッド本体と、前記収容凹部の内面に敷設される補強用面材と、を有し、前記パッド本体のうち前記補強用面材に設けられた開口部と重なる部分が、前記エアバッグ装置の作動時に開裂するシートパッドを発泡成形するための発泡成形型であって、前記収容凹部を成形する成形突部と、その成形突部の先端が前記開口部に挿通された状態で前記補強用面材を前記成形突部の外面に重ねて固定する固定手段と、を有し、前記固定手段は、前記成形突部の先端部に設けられて、前記補強用面材において前記開口部の近傍に形成された係合孔に係止する係止突部と、前記補強用面材のうち前記開口部から離れた部分に設けられた磁性体と磁気吸着するマグネットと、を有する、発泡成形型である。 A first aspect of the invention, which has been made to achieve the above object, has a pad body provided with a housing recess for housing an airbag device, and a reinforcing surface material laid on the inner surface of the housing recess, A foam mold for foam-molding a seat pad in which a portion of the pad body that overlaps an opening provided in the reinforcing face member is split when the airbag device is activated, and the housing recess is formed. and fixing means for overlapping and fixing the reinforcing face member on the outer surface of the forming protrusion with the tip of the forming protrusion being inserted into the opening, wherein the fixing means are a locking projection provided at the tip of the molding projection and locked to an engagement hole formed in the vicinity of the opening in the reinforcing face member; The foaming mold has a magnetic body provided at a portion away from an opening and a magnet that magnetically attracts.

発明の第２態様は、前記成形突部は、前記発泡成形型の開閉方向に沿って突出し、前記係止突部のうち前記成形突部の基端側を向く面は、該基端側へ向かうにつれて徐々に前記係止突部の突出量を小さくする傾斜面となっている、第１態様に記載の発泡成形型である。 In a second aspect of the invention, the molding projection protrudes along the opening and closing direction of the foaming mold, and the surface of the locking projection facing the base end side of the molding projection extends toward the base end side. The foaming mold according to the first aspect, wherein the inclined surface gradually reduces the amount of protrusion of the locking projection as it goes.

発明の第３態様は、上型と下型と前記上型に宛がわれる中子とを有し、前記中子の外縁部には、前記上型に対して下側から間隔を空けて対向する外縁対向部が設けられ、前記成形突部は、前記外縁対向部から下側に突出し、前記マグネットには、前記外縁対向部のうち前記上型との対向面に配置されるものが含まれる、第１態様又は第２態様に記載の発泡成形型である。 A third aspect of the invention has an upper die, a lower die, and a core assigned to the upper die, and the outer edge of the core is opposed to the upper die from below with a gap therebetween. The forming protrusion projects downward from the outer edge facing portion, and the magnet includes one arranged on the surface of the outer edge facing portion facing the upper die. , a foaming mold according to the first aspect or the second aspect.

発明の第４態様は、第１態様から第３態様に記載の発泡成形型を用いるシートパッドの製造方法であって、前記補強用面材に、前記開口部の近傍を貫通する係合孔を形成しておき、前記補強用面材を前記成形突部に固定するにあたり、前記補強用面材の前記係合孔に前記発泡成形型の係止突部を係止させてから、前記補強用面材の前記磁性体と前記発泡成形型の前記マグネットと磁気吸着させる、シートパッドの製造方法である。 A fourth aspect of the invention is a seat pad manufacturing method using the foaming mold according to any one of the first to third aspects, wherein the reinforcing face member is provided with an engaging hole penetrating in the vicinity of the opening. When fixing the reinforcing face material to the molding protrusion, the locking protrusion of the foaming mold is engaged with the engaging hole of the reinforcing face material, and then the reinforcing face material is fixed. In the method of manufacturing a seat pad, the magnetic material of the face material and the magnet of the foam mold are magnetically attracted to each other.

［発明の第１態様、第４態様］
本態様では、補強用面材が発泡成形型に取り付けられる際、成形突部の先端部に設けられた係止突部が、補強用面材において開口部の近傍に形成された係合孔に係止する。また、発泡成形型に備えられたマグネットが、補強用面材のうち開口部から離れた部分に設けられた磁性体と磁気吸着する。これにより、シートパッドのうちエアバッグ装置によって開裂する部分の近くに配置される磁性体の数を減らすことが可能となり、エアバッグ装置が作動したときの磁性体の飛散が抑制される。 [First and fourth aspects of the invention]
In this aspect, when the reinforcing face member is attached to the foaming mold, the locking projection provided at the tip of the molding projection is engaged with the engaging hole formed in the reinforcing face member near the opening. Lock. Also, the magnet provided in the foaming mold is magnetically attracted to the magnetic material provided in the portion of the reinforcing face member away from the opening. As a result, it is possible to reduce the number of magnetic bodies arranged near the portion of the seat pad that is torn apart by the airbag device, thereby suppressing scattering of the magnetic bodies when the airbag device is activated.

また、発明の第４態様では、補強用面材の係合孔を係止突部に引っ掛けて、補強用面材に張力を持たせながら補強用面材の磁性体をマグネットに磁気吸着させることが可能となる。これにより、成形突部の外面に補強用面材を密着させることが可能となり、発泡樹脂原料が成形突部と補強用面材の間に入り込むことが抑制される。 Further, in the fourth aspect of the invention, the engaging hole of the reinforcing face member is hooked on the locking protrusion, and the magnetic material of the reinforcing face member is magnetically attracted to the magnet while the reinforcing face member is given tension. becomes possible. As a result, it becomes possible to bring the reinforcing face material into close contact with the outer surface of the molding projection, thereby suppressing the foam resin raw material from entering between the molding projection and the reinforcing face material.

［発明の第２態様］
本態様では、係止突部のうち成形突部の基端側を向く面が、該基端側に向かうにつれて徐々に係止突部の突出量を小さくする傾斜面となっているので、シートパッドを発泡成形型からスムーズに外すことが可能となる。 [Second aspect of the invention]
In this aspect, the surface of the locking projection facing the base end side of the molded projection is an inclined surface that gradually reduces the amount of projection of the locking projection toward the base end side. It becomes possible to smoothly remove the pad from the foam mold.

［発明の第３態様］
本態様では、マグネットが中子の外縁対向部のうち上型との対向面に配置される。これにより、補強用面材が中子の下側から側方を通って上側に巻き付けられることになるので、補強用面材と成形突部との密着性を向上させることが可能となる。 [Third aspect of the invention]
In this aspect, the magnet is arranged on the surface facing the upper die in the portion facing the outer edge of the core. As a result, the reinforcing face member is wound upwardly from the lower side of the core through the side, so that the adhesion between the reinforcing face member and the molding projection can be improved.

シートパッドの斜視図Perspective view of seat pad シートパッドの平断面図Flat sectional view of seat pad （Ａ）シートパッドの収容凹部周辺の拡大平断面図、（Ｂ）エアバッグ装置が作動したときのシートパッドの平断面図(A) Enlarged cross-sectional plan view of the vicinity of the accommodation recess of the seat pad, (B) Planar cross-sectional view of the seat pad when the airbag device is activated 型開き状態の発泡成形型の斜視図Perspective view of foaming mold in open state 型閉じ状態の発泡成形型の正断面図Front cross-sectional view of foaming mold in closed state 補強用面材が取り付けられる成形突部の正断面図Front cross-sectional view of the molded protrusion to which the reinforcing face plate is attached 発泡成形型が型閉じされたときの成形突部周辺の拡大正断面図Enlarged cross-sectional view around the molding protrusion when the foaming mold is closed パッド本体の発泡成形中における成形突部周辺の拡大正断面図Enlarged cross-sectional view of the periphery of the molded protrusion during foam molding of the pad body 発泡成形されたパッド本体の正断面図Front sectional view of foam-molded pad body 型開き状態の発泡成形型の上型及び中子とパッド本体の正断面図Front cross-sectional view of the upper mold, the core and the pad body of the foaming mold in the opened state 発泡成形型から外されるパッド本体の係止突部周辺の拡大正断面図Enlarged cross-sectional view around the locking protrusion of the pad body removed from the foaming mold 他の実施形態に係る係止突部の正断面図Front cross-sectional view of a locking protrusion according to another embodiment

図１及び図２に示されるように、本実施形態に係るシートパッド１０は、車両用シート９０の背もたれ部９２に用いられるバックパッドである。なお、背もたれ部９２は、シートパッド１０をカバー９３で覆ってなる。 As shown in FIGS. 1 and 2, the seat pad 10 according to this embodiment is a back pad used for a backrest portion 92 of a vehicle seat 90. As shown in FIGS. The backrest portion 92 is formed by covering the seat pad 10 with a cover 93 .

図２に示されるように、シートパッド１０は、発泡樹脂からなるパッド本体１１と、パッド本体１１の後側を向く面に一体化された補強用面材３０と、を備えている。補強用面材３０は、例えば、不織布によって構成されている。 As shown in FIG. 2 , the seat pad 10 includes a pad body 11 made of foamed resin and a reinforcing face member 30 integrated with the rearward facing surface of the pad body 11 . The reinforcing face member 30 is made of nonwoven fabric, for example.

パッド本体１１は、車両用シート９０のバックフレーム（図示せず）を前側から覆うベース１２と、ベース１２の外縁部から後側に突出した後方突部１３と、後方突部１３の後端部から内側に張り出したフランジ部１４と、からなる。詳細には、ベース１２は、前側から見て、縦長の長方形状をなしている。後方突部１３及びフランジ部１４は、ベース１２の上辺部と左右の側辺部とに沿って連続して形成されている。そして、ベース１２、後方突部１３及びフランジ部１４によって囲まれた空間が、バックフレームの外縁部を受容する受容凹部１５となっている。 The pad body 11 includes a base 12 that covers the back frame (not shown) of the vehicle seat 90 from the front side, a rear protrusion 13 that protrudes rearward from the outer edge of the base 12, and a rear end of the rear protrusion 13. and a flange portion 14 projecting inward from. Specifically, the base 12 has a vertically long rectangular shape when viewed from the front side. The rear projecting portion 13 and the flange portion 14 are formed continuously along the upper side portion and the left and right side portions of the base 12 . A space surrounded by the base 12, the rear protrusion 13 and the flange 14 serves as a receiving recess 15 for receiving the outer edge of the back frame.

ベース１２は、ベース１２の左右中央側に配置されて着座者の背中を受け止めるメイン受け部１２Ａと、メイン受け部１２Ａの左右両側に配置された１対のサイド受け部１２Ｂ，１２Ｂと、を備えている。メイン受け部１２Ａは、前後方向で扁平に形成され、サイド受け部１２Ｂは、メイン受け部１２Ａに対して前側に膨出するように形成されている。サイド受け部１２Ｂの後面には、上下方向に延在するサイド溝１６が形成されている。なお、後方突部１３は、サイド溝１６の溝側壁に連設され、サイド溝１６は、上述の受容凹部１５に連通している。そして、サイド溝１６に、バックフレームの左右両側部が係合する。 The base 12 includes a main receiving portion 12A arranged on the left and right central sides of the base 12 to receive the back of the seated person, and a pair of side receiving portions 12B, 12B arranged on both left and right sides of the main receiving portion 12A. ing. The main receiving portion 12A is formed flat in the front-rear direction, and the side receiving portion 12B is formed to bulge forward with respect to the main receiving portion 12A. A side groove 16 extending in the vertical direction is formed in the rear surface of the side receiving portion 12B. The rear protrusion 13 is connected to the side wall of the side groove 16 , and the side groove 16 communicates with the receiving recess 15 described above. The left and right side portions of the back frame are engaged with the side grooves 16 .

車両ドアに近い側のサイド受け部１２Ｂ（図２の例では、右側のサイド受け部１２Ｂ）に設けられたサイド溝１６には、エアバッグ装置９０を収容するための収容凹部２０が形成されている。詳細には、エアバッグ装置９０は、車両ドアに近い側のサイド受け部１２Ｂと、後方突部１３のうち該サイド受け部１２Ｂから後側に突出する部分と、フランジ部１４のうち該サイド受け部１２Ｂの後側に配置される部分と、によって囲まれた空間に収容され、収容凹部２０には、エアバッグ装置９０の一部が収容されている。 A housing recess 20 for housing an airbag device 90 is formed in the side groove 16 provided in the side receiving portion 12B on the side closer to the vehicle door (the right side receiving portion 12B in the example of FIG. 2). there is Specifically, the airbag device 90 includes a side receiving portion 12B on the side closer to the vehicle door, a portion of the rear protrusion 13 that projects rearward from the side receiving portion 12B, and a flange portion 14 that includes the side receiving portion. A portion of the airbag device 90 is housed in the space surrounded by the portion arranged on the rear side of the portion 12</b>B.

収容凹部２０の内面には、前側を段付き状に幅狭にする段差部２３が設けられている。収容凹部２０のうち段差部２３より後側の幅広部２０Ａは、エアバッグ装置９０を受容する。収容凹部２０のうち段差部２３より前側の幅狭部２０Ｂは、車両ドアに近い側に寄せて配置されている。具体的には、段差部２３は、収容凹部２０の内面のうち車両ドア側を向く面に形成されていて、幅狭部２０Ｂは、幅広部２０Ａのうち車両ドアに近い側の部分から前側に延設されている。なお、図２の例では、収容凹部２０を構成する凹部構成壁２１のうち幅狭部２０Ｂの前側に配置される前端壁部２１Ｆは、凹部構成壁２１の中で最も薄肉になっている。 A stepped portion 23 is provided on the inner surface of the housing recess 20 to narrow the front side in a stepped manner. A wide portion 20</b>A behind the stepped portion 23 of the housing recess 20 receives the airbag device 90 . A narrow portion 20B on the front side of the stepped portion 23 of the housing recess 20 is arranged closer to the vehicle door. Specifically, the stepped portion 23 is formed on the inner surface of the housing recess 20 facing the vehicle door side, and the narrow portion 20B extends forward from the portion of the wide portion 20A closer to the vehicle door. deferred. In the example of FIG. 2, the front end wall portion 21F, which is located on the front side of the narrow portion 20B, is the thinnest among the recess forming walls 21 forming the housing recess 20. As shown in FIG.

図２に示されるように、補強用面材３０は、ベース１２におけるメイン受け部１２Ａの後面及びサイド溝１６の内面と、後方突部１３及びフランジ部１４のうち受容凹部１５に臨む面（即ち、受容凹部１５の内面）と、に敷設されている。補強用面材３０は、１枚の不織布により構成されてもよいし、複数の不織布を繋ぎ合わせて構成されてもよい。 As shown in FIG. 2, the reinforcing surface member 30 includes the rear surface of the main receiving portion 12A of the base 12, the inner surface of the side groove 16, and the surface of the rear protrusion 13 and the flange portion 14 facing the receiving recess 15 (that is, the inner surface of the side groove 16). , the inner surface of the receiving recess 15). The reinforcing face material 30 may be composed of one sheet of nonwoven fabric, or may be composed of a plurality of nonwoven fabrics joined together.

図３（Ａ）に示されるように、補強用面材３０のうち収容凹部２０の内面（即ち、凹部構成壁２１の内面）に敷設された部分には、上下方向に直線状に延びる開口部３１が形成されている。開口部３１は、凹部構成壁２１の前端壁部２１Ｆに重ねられている。 As shown in FIG. 3A, the portion of the reinforcing face member 30 laid on the inner surface of the housing recess 20 (that is, the inner surface of the wall 21 forming the recess) has an opening extending linearly in the vertical direction. 31 are formed. The opening 31 overlaps the front end wall portion 21F of the wall 21 forming the recess.

補強用面材３０のうち開口部３１の近傍（具体的には、開口部３１の開口縁）には、係合孔３２が貫通形成されている。係合孔３２は、開口部３１の延在方向に沿って並ぶように複数設けられている。また、補強用面材３０のうち、開口部３１から離れた部分には、複数の磁性体３３が備えられている。即ち、磁性体３３は、係合孔３２よりも開口部３１から離れた位置に配置されている。 Engagement holes 32 are formed through the reinforcement surface member 30 in the vicinity of the opening 31 (specifically, the opening edge of the opening 31). A plurality of engaging holes 32 are provided so as to line up along the extending direction of the opening 31 . Moreover, a plurality of magnetic bodies 33 are provided in a portion of the reinforcing face member 30 away from the opening 31 . That is, the magnetic body 33 is arranged at a position farther from the opening 31 than the engaging hole 32 is.

図３（Ｂ）に示されるように、エアバッグ装置９０が作動すると、エアバッグ装置９０に収納されていたエアバッグ９１が前側に膨張する。ここで、収容凹部２０を構成する凹部構成壁２１の前端壁部２１Ｆは、開口部３１と重なることで補強用面材３０により補強されていない。しかも、前端壁部２１Ｆは、凹部構成壁２１の中で最も薄肉になっている。これらにより、エアバッグ９１が膨張すると、凹部構成壁２１の前端壁部２１Ｆが優先的に開裂し、パッド本体１１から前側に飛び出したエアバッグ９１が車両ドアと着座者との間に配置される。 As shown in FIG. 3B, when the airbag device 90 operates, the airbag 91 housed in the airbag device 90 inflates forward. Here, the front end wall portion 21</b>F of the recess forming wall 21 forming the housing recess 20 overlaps with the opening 31 and is not reinforced by the reinforcing surface member 30 . Moreover, the front end wall portion 21F is the thinnest among the walls 21 forming the recess. As a result, when the airbag 91 is inflated, the front end wall portion 21F of the recess forming wall 21 is preferentially cleaved, and the airbag 91 projecting forward from the pad body 11 is arranged between the vehicle door and the seated occupant. .

図４及び図５には、シートパッド１０を発泡成形するための発泡成形型５０が示されている。発泡成形型５０は、上型５１と、下型５２と、上型５１に取り付けられる中子５３と、を備えている。発泡成形型５０では、中子５３に補強用面材３０を取り付けた状態で、パッド本体１１が発泡成形される。パッド本体１１は、その前面を下向きにして成形される。 4 and 5 show a foaming mold 50 for foaming the seat pad 10. FIG. The foaming mold 50 includes an upper mold 51 , a lower mold 52 and a core 53 attached to the upper mold 51 . In the foam mold 50 , the pad body 11 is foam-molded with the reinforcing face member 30 attached to the core 53 . The pad body 11 is molded with its front surface facing downward.

図４に示されるように、上型５１と下型５２は、平面視長方形状をなし、短辺部同士がヒンジで連結されている。下型５２は、上側に開放した成形凹部５２Ａを有する容器状をなし、成形凹部５２Ａの内面によって、パッド本体１１の前面が成形される。上型５１は、成形凹部５２Ａを閉塞する蓋状に形成されている。なお、図５に示されるように、上型５１の下面中央部には、中子５３の中央突部５４Ｔを収めるための中央凹部５１Ａが形成されている。 As shown in FIG. 4, the upper mold 51 and the lower mold 52 have a rectangular shape in a plan view, and short sides thereof are connected to each other by hinges. The lower mold 52 has a container shape having a molding recess 52A that opens upward, and the front surface of the pad body 11 is molded by the inner surface of the molding recess 52A. The upper die 51 is formed in a lid-like shape that closes the molding recess 52A. As shown in FIG. 5, a central recess 51A is formed in the center of the lower surface of the upper die 51 to accommodate the central projection 54T of the core 53. As shown in FIG.

図５に示されるように、中子５３は、上下に扁平な主盤５４と、主盤５４の上面の中央部から突出した中央突部５４Ｔと、を有している。そして、中央突部５４Ｔが上型５１の中央凹部５１Ａと係合することによって、中子５３が上型５１に対して位置決めされる。 As shown in FIG. 5 , the core 53 has a vertically flat main plate 54 and a central protrusion 54T protruding from the central portion of the upper surface of the main plate 54 . The core 53 is positioned with respect to the upper die 51 by engaging the central protrusion 54T with the central recess 51A of the upper die 51 .

図４に示されるように、主盤５４は、平面視長方形状に形成され、パッド本体１１におけるベース１２の後面を成形する。なお、主盤５４の短辺は、上型５１及び下型５２の短辺に沿って配置される。 As shown in FIG. 4 , the main board 54 is rectangular in plan view and forms the rear surface of the base 12 of the pad body 11 . The short sides of the main plate 54 are arranged along the short sides of the upper die 51 and the lower die 52 .

図５に示されるように、主盤５４と下型５２における成形凹部５２Ａの内周面との間には、平面視コの字状の隙間が形成され、その隙間によってパッド本体１１の後方突部１３（図２参照）が成形される。また、中子５３の中央突部５４Ｔの高さは、上型５１の中央凹部５１Ａの深さより大きくなっていて、主盤５４の外縁部には、上型５１との間に隙間を形成する隙間形成部５５（本発明の「外縁対向部」に相当する。）が設けられている。そして、その隙間形成部５５と上型５１との間の隙間によってパッド本体１１のフランジ部１４（図２参照）が成形される。別の見方をすれば、主盤５４の隙間形成部５５は、パッド本体１１における受容凹部１５（図２参照）を成形する。 As shown in FIG. 5, between the main plate 54 and the inner peripheral surface of the molding recess 52A of the lower die 52, a U-shaped gap is formed in plan view, and this gap allows the pad body 11 to project backward. A portion 13 (see FIG. 2) is molded. The height of the central protrusion 54T of the core 53 is larger than the depth of the central recess 51A of the upper die 51, and a gap is formed between the outer edge of the main plate 54 and the upper die 51. A gap forming portion 55 (corresponding to the “outer edge facing portion” of the present invention) is provided. The flange portion 14 (see FIG. 2) of the pad main body 11 is formed by the gap between the gap forming portion 55 and the upper die 51 . From another point of view, the gap forming portion 55 of the main board 54 forms the receiving recess 15 (see FIG. 2) in the pad body 11 .

図４及び図５に示されるように、主盤５４における短辺方向の両端部からは、パッド本体１１のベース１２におけるサイド溝１６を成形するためのサイド突条５６が下方に突出している。なお、サイド突条５６は、主盤５４の長辺方向に沿って延在している。 As shown in FIGS. 4 and 5 , side protrusions 56 for forming side grooves 16 in the base 12 of the pad body 11 protrude downward from both ends of the main board 54 in the short side direction. Note that the side protrusions 56 extend along the long side direction of the main board 54 .

図５に示されるように、主盤５４の短辺方向の一方側（図５では、右側）に配置されたサイド突条５６（本発明の「成形突部」に相当する。）には、サイド突条５６の先端側を段付き状に幅狭にする段差部５７が形成されている。そして、サイド突条５６のうち段差部５７より基端側の幅広部５６Ａによってパッド本体１１における収容凹部２０の幅広部２０Ａが形成され、サイド突条５６のうち段差部５７より先端側の幅狭部５６Ｂによって収容凹部２０の幅狭部２０Ｂが形成される。なお、詳細には、段差部５７は、サイド突条５６のうち主盤５４の短辺方向の他方側を向く部分（図５では、左側を向く部分）に成形されていて、サイド突条５６の幅狭部５６Ｂは、主盤５４の短辺方向の一方側に寄せて配置されている。 As shown in FIG. 5, the side protrusion 56 (corresponding to the "molding protrusion" of the present invention) arranged on one side (the right side in FIG. 5) in the short side direction of the main board 54 includes: A stepped portion 57 is formed to narrow the tip side of the side projection 56 in a stepped manner. A wide portion 20A of the housing recess 20 in the pad main body 11 is formed by a wide portion 56A of the side protrusion 56 on the proximal side of the stepped portion 57, and a narrow portion of the side protrusion 56 on the distal side of the stepped portion 57 is formed. A narrow portion 20B of the housing recess 20 is formed by the portion 56B. More specifically, the stepped portion 57 is formed in a portion of the side ridge 56 facing the other side in the short side direction of the main board 54 (the portion facing the left in FIG. 5). The narrow portion 56B is arranged closer to one side of the main board 54 in the short side direction.

サイド突条５６の幅狭部５６Ｂからは、幅方向外側に係止突部６０が突出している。図４に示されるように、係止突部６０は、幅方向の一方側と他方側に突出する２つを１組にして、サイド突条５６の延在方向に沿って複数組備えられている。なお、係止突部６０の突出量は、補強用面材３０の厚みより若干大きくなっている。 A locking protrusion 60 protrudes outward in the width direction from the narrow portion 56B of the side protrusion 56 . As shown in FIG. 4 , a plurality of sets of locking projections 60 are provided along the extending direction of the side projections 56 , each set including two that project to one side and the other side in the width direction. there is In addition, the amount of projection of the locking protrusion 60 is slightly larger than the thickness of the reinforcing face member 30 .

図５の拡大図に示されるように、係止突部６０のうちサイド突条５６の先端側を向く面は、サイド突条５６の突出方向に対して略垂直に配置される垂直面６１となっている。また、係止突部６０のうちサイド突条５６の基端側を向く面は、サイド突条５６の基端側へ向かうにつれて係止突部６０の突出量を小さくするように傾斜した傾斜面６２となっている。 As shown in the enlarged view of FIG. 5 , the surface of the locking projection 60 facing the tip side of the side projection 56 is a vertical surface 61 that is arranged substantially perpendicular to the projecting direction of the side projection 56 . It's becoming In addition, the surface of the locking projection 60 that faces the base end side of the side projection 56 is an inclined surface that is inclined so that the projection amount of the locking projection 60 decreases toward the base end side of the side projection 56. 62.

詳細には、図４の拡大図に示されるように、係止突部６０は、台形状の底部６０Ｂと、直線状の頂部６０Ｔと、を有する５面体状に形成されている。底部６０Ｂは、サイド突条５６の先端側が幅広となる等脚台形状に形成されていて、係止突部６０の垂直面６１と傾斜面６２は、係止突部６０の先端側（即ち、頂部６０Ｔ）に向かうにつれて幅狭となる台形状に形成されている。 Specifically, as shown in the enlarged view of FIG. 4, the locking protrusion 60 is formed in a pentahedral shape having a trapezoidal bottom portion 60B and a linear top portion 60T. The bottom portion 60B is formed in an isosceles trapezoidal shape in which the tip side of the side projection 56 is widened, and the vertical surface 61 and the inclined surface 62 of the locking projection 60 are aligned with the tip side of the locking projection 60 (that is, It is formed in a trapezoidal shape that narrows toward the top portion 60T).

図５に示されるように、中子５３の外面には、補強用面材３０の磁性体３３と結合するマグネット６５が複数備えられている。複数のマグネット６５は、サイド突条５６の幅狭部５６Ｂを避けて配置され、具体的には、隙間形成部５５における上型５１との対向面、サイド突条５６の幅広部５６Ａのうち主盤５４の中央側を向く面、主盤５４の中央部の下面等に備えられている。 As shown in FIG. 5, the outer surface of the core 53 is provided with a plurality of magnets 65 that couple with the magnetic bodies 33 of the reinforcing surface member 30 . The plurality of magnets 65 are arranged to avoid the narrow portion 56B of the side ridge 56. Specifically, the surface facing the upper die 51 in the gap forming portion 55 and the wide portion 56A of the side ridge 56 are mainly arranged. It is provided on the surface facing the central side of the board 54, the lower surface of the central portion of the main board 54, and the like.

なお、本実施形態では、係止突部６０とマグネット６５から本発明の「固定手段」が構成される。 In addition, in this embodiment, the locking protrusion 60 and the magnet 65 constitute the "fixing means" of the present invention.

シートパッド１０は以下のようにして製造される。まず、開口部３１、係合孔３２及び磁性体３３を有する補強用面材３０を用意する。なお、係合孔３２は、補強用面材３０の開口部３１の近傍に形成されていて、磁性体３３は、補強用面材３０のうち開口部３１から離れた所定複数箇所に備えられている。 The seat pad 10 is manufactured as follows. First, a reinforcing face member 30 having an opening 31, an engaging hole 32 and a magnetic body 33 is prepared. The engaging hole 32 is formed in the vicinity of the opening 31 of the reinforcing face member 30, and the magnetic bodies 33 are provided at a plurality of predetermined locations apart from the opening 31 of the reinforcing face member 30. there is

次いで、図６に示されるように、型開きされた発泡成形型５０の中子５３に補強用面材３０を取り付ける。なお、このとき、中子５３は上型５１から離れた状態となっている。 Next, as shown in FIG. 6, the reinforcing face member 30 is attached to the core 53 of the opened foaming mold 50 . At this time, the core 53 is separated from the upper die 51 .

補強用面材３０の取り付けの詳細は以下の通りである。即ち、まず、中子５３の短辺方向一方側のサイド突条５６（詳細には、幅狭部５６Ｂ）の先端を補強用面材３０の開口部３１に通しながら、補強用面材３０を該サイド突条５６に被せる。次いで、サイド突条５６の幅狭部５６Ｂの複数の係止突部６０を補強用面材３０の複数の係合孔３２に通す。そして、複数の係止突部６０を複数の係合孔３２に引っ掛けながら、補強用面材３０の複数の磁性体３３を中子５３の複数のマグネット６５に磁気吸着させる。このとき、補強用面材３０の開口部３１から離れた部分を引っ張るようにして補強用面材３０に張力を持たせることで、補強用面材３０をサイド突条５６の外面に密着させることが可能となる。特に、図６において矢印で示されるように、中子５３の隙間形成部５５における上型５１との対向面に備えられたマグネット６５に磁性体３３を吸着される場合には、補強用面材３０が中子５３の下側から側方を通って上側に巻き付けられるので、補強用面材３０とサイド突条５６との密着性を向上させることが可能となる。 The details of attachment of the reinforcing face member 30 are as follows. That is, first, the reinforcing face member 30 is inserted through the opening 31 of the reinforcing face member 30 while the tip of the side projection 56 (more specifically, the narrow width portion 56B) on one side of the core 53 in the short side direction is passed through. The side ribs 56 are covered. Next, the plurality of locking projections 60 of the narrow portion 56B of the side projection 56 are passed through the plurality of engagement holes 32 of the reinforcing face member 30. As shown in FIG. Then, the plurality of magnetic bodies 33 of the reinforcing surface member 30 are magnetically attracted to the plurality of magnets 65 of the core 53 while hooking the plurality of locking projections 60 to the plurality of engagement holes 32 . At this time, the reinforcing face member 30 is brought into close contact with the outer surface of the side ridge 56 by applying tension to the reinforcing face member 30 by pulling the portion of the reinforcing face member 30 away from the opening 31 . becomes possible. In particular, when the magnetic body 33 is attracted to the magnet 65 provided on the surface facing the upper die 51 in the gap forming portion 55 of the core 53 as indicated by the arrow in FIG. Since the core 30 is wound upward through the side from the lower side of the core 53, it is possible to improve the adhesion between the reinforcing face member 30 and the side ridges 56. - 特許庁

中子５３への補強用面材３０の取り付けが完了すると、中子５３を上型５１に取り付ける。次いで、下型５２の成形凹部５２Ａに発泡樹脂原料８０を注入し、発泡成形型５０を型閉じする（図７参照）。そして、発泡成形型５０内で、発泡樹脂原料８０を発泡させる。すると、発泡成形型５０内で、補強用面材３０と一体になったパッド本体１１が成形される（図９参照）。 After completing the attachment of the reinforcing face member 30 to the core 53 , the core 53 is attached to the upper die 51 . Next, the foaming resin raw material 80 is injected into the molding recess 52A of the lower mold 52, and the foaming mold 50 is closed (see FIG. 7). Then, the foamed resin raw material 80 is foamed in the foaming mold 50 . Then, the pad main body 11 integrated with the reinforcing face member 30 is molded in the foaming mold 50 (see FIG. 9).

ところで、本実施形態では、中子５３の短辺方向一方側のサイド突条５６に段差部５７が設けられているので、補強用面材３０が中子５３に取り付けられたときに、補強用面材３０が段差部５７から浮き上がり、補強用面材３０がサイド突条５６に密着し難いという問題がある。この問題は、発泡樹脂原料８０の発泡によって解決される。即ち、図８に示されるように、発泡樹脂原料８０が発泡膨張すると、補強用面材３０が段差部５７に押し付けられて、サイド突条５６と密着する。ここで、補強用面材３０のうち開口部３１から離れた部分は、磁性体３３とマグネット６５の磁気吸着によって中子５３に固定されているので、補強用面材３０が段差部５７に押し付けられるときに補強用面材３０に過大な張力が掛かっても、マグネット６５に対して磁性体３３の位置がずれることで補強用面材３０の損傷が防がれる。 By the way, in the present embodiment, since the side protrusion 56 on one side in the short side direction of the core 53 is provided with the stepped portion 57, when the reinforcing face member 30 is attached to the core 53, the reinforcing There is a problem that the face material 30 is lifted from the stepped portion 57 and the reinforcing face material 30 is difficult to adhere to the side ribs 56 . This problem is solved by foaming the foamed resin raw material 80 . That is, as shown in FIG. 8 , when the foamed resin raw material 80 expands, the reinforcing face member 30 is pressed against the stepped portion 57 and adheres closely to the side ridges 56 . Here, since the portion of the reinforcing face member 30 away from the opening 31 is fixed to the core 53 by magnetic attraction between the magnetic body 33 and the magnet 65, the reinforcing face member 30 is pressed against the stepped portion 57. Even if an excessive tension is applied to the reinforcing surface material 30 when the reinforcing surface material 30 is attached, the position of the magnetic body 33 is displaced with respect to the magnet 65, thereby preventing the reinforcing surface material 30 from being damaged.

パッド本体１１が成形されると、発泡成形型５０を開いて、パッド本体１１と補強用面材３０が一体化したシートパッド１０を発泡成形型５０から外す。以上により、シートパッド１０が完成する。 After the pad main body 11 is molded, the foaming mold 50 is opened and the seat pad 10 in which the pad main body 11 and the reinforcing face member 30 are integrated is removed from the foaming mold 50 . As described above, the seat pad 10 is completed.

なお、詳細には、発泡成形型５０が開かれると、パッド本体１１は、フランジ部１４が中子５３の隙間形成部５５に引っ掛かることで、中子５３と一緒になって下型５２から離れる（図１０参照）。また、上型５１から中子５３が外されることで、パッド本体１１は、上型５１から離れる。そして、パッド本体１１が中子５３から外される。ここで、パッド本体１１を中子５３から外す際、係止突部６０がアンダーカットになる可能性があるが、図１１に示されるように、本実施形態では、係止突部６０のうちサイド突条５６の基端側を向く面は、サイド突条５６の基端側へ向かうにつれて係止突部６０の突出量を小さくするように傾斜した傾斜面６２になっているので、弾性を有したパッド本体１１を中子５３からスムーズに外すことができる。 More specifically, when the foaming mold 50 is opened, the pad body 11 is separated from the lower mold 52 together with the core 53 by the flange portion 14 being caught in the gap forming portion 55 of the core 53. (See FIG. 10). Further, the pad main body 11 is separated from the upper mold 51 by removing the core 53 from the upper mold 51 . Then, the pad body 11 is removed from the core 53 . Here, when the pad body 11 is removed from the core 53, there is a possibility that the locking protrusion 60 will be undercut. The surface of the side projection 56 facing the base end side is an inclined surface 62 that is inclined so that the projection amount of the locking projection 60 decreases as it goes toward the base end side of the side projection 56, so that the elasticity is increased. The pad body 11 thus held can be smoothly removed from the core 53. - 特許庁

本実施形態の発泡成形型５０では、補強用面材３０が中子５３に取り付けられる際、中子５３におけるサイド突条５６の先端部（幅狭部５６Ｂ）に設けられた係止突部６０が、補強用面材３０において開口部３１の近傍に形成された係合孔３２に係止する。また、中子５３の所定箇所に備えられたマグネット６５が、補強用面材３０のうち開口部３１から離れた部分に備えられた磁性体３３と磁気吸着する。これにより、シートパッド１０のうちエアバッグ装置９０によって開裂する部分の近くに配置される磁性体３３の数を減らすことが可能となり、エアバッグ装置９０が作動したときの磁性体３３の飛散が抑制される。 In the foaming mold 50 of the present embodiment, when the reinforcing face member 30 is attached to the core 53, the locking projection 60 provided at the tip portion (narrow portion 56B) of the side ridge 56 of the core 53 is engaged with an engaging hole 32 formed in the vicinity of the opening 31 in the reinforcing face member 30 . A magnet 65 provided at a predetermined location of the core 53 is magnetically attracted to the magnetic body 33 provided at a portion of the reinforcing face member 30 away from the opening 31 . This makes it possible to reduce the number of magnetic bodies 33 arranged near the portion of the seat pad 10 that is cleaved by the airbag device 90, thereby suppressing the scattering of the magnetic bodies 33 when the airbag device 90 is activated. be done.

また、発泡成形型５０を用いたシートパッド１０の製造方法では、補強用面材３０の係合孔３２を係止突部６０に引っ掛けて、補強用面材３０に張力を持たせながら該補強用面材３０の磁性体３３をマグネット６５に磁気吸着させることが可能となる。これにより、中子５３の外面に補強用面材３０を密着させることが可能となり、発泡樹脂原料８０が中子５３と補強用面材３０の間に入り込むことが抑制される。 Further, in the method of manufacturing the seat pad 10 using the foaming mold 50, the engagement hole 32 of the reinforcing face member 30 is hooked to the locking protrusion 60, and the reinforcing face member 30 is reinforced while applying tension. It becomes possible to magnetically attract the magnetic body 33 of the surface material 30 to the magnet 65 . As a result, it is possible to bring the reinforcing face material 30 into close contact with the outer surface of the core 53 , and prevent the foamed resin raw material 80 from entering between the core 53 and the reinforcing face material 30 .

［他の実施形態］
本発明は、上記実施形態に限定されるものではなく、例えば、以下に説明するような実施形態も本発明の技術的範囲に含まれ、さらに、下記以外にも要旨を逸脱しない範囲内で種々変更して実施することができる。 [Other embodiments]
The present invention is not limited to the above embodiments. For example, embodiments described below are also included in the technical scope of the present invention. It can be changed and implemented.

（１）上記実施形態において、図１２に示されるように、係止突部６０のうちサイド突条５６の先端側を向く面に、補強用面材３０の係合孔３２の開口縁を受容する受容溝６０Ｕが形成されていてもよい。この場合、係止突部６０のうちサイド突条５６の先端側を向く面は、垂直面６１であってもよいし、サイド突条５６の突出方向に対して傾斜する傾斜面であってもよい。 (1) In the above embodiment, as shown in FIG. 12, the opening edge of the engagement hole 32 of the reinforcing face member 30 is received by the surface of the locking projection 60 facing the tip side of the side projection 56. A receiving groove 60U may be formed. In this case, the surface of the locking protrusion 60 facing the tip side of the side ridge 56 may be the vertical surface 61 or may be an inclined surface slanted with respect to the projecting direction of the side ridge 56. good.

（２）上記実施形態では、係止突部６０のうちサイド突条５６の先端側を向く面が、サイド突条５６の突出方向に対して、略垂直に配置されていたが、サイド突条５６の幅狭部５６Ｂ側を向くように傾斜していてもよい。 (2) In the above-described embodiment, the surface of the locking protrusion 60 facing the tip side of the side protrusion 56 was arranged substantially perpendicular to the direction in which the side protrusion 56 protruded. You may incline so that it may face the narrow part 56B side of 56. As shown in FIG.

（３）上記（１）、（２）の構成を、サイド突条５６の幅方向の一方側と他方側の係止突部６０のうち、片方のみに適用してもよいし、両方に適用してもよい。 (3) The above configurations (1) and (2) may be applied to only one of the locking protrusions 60 on one side and the other side in the width direction of the side rib 56, or may be applied to both. You may

（４）上記実施形態において、サイド突条５６に段差部５７が設けられていなくてもよい。この場合、サイド突条５６が、先端側に向かうにつれて幅狭となるように構成されていることが好ましく、サイド突条５６のうち最も幅狭となる部分が、主盤５４の短辺方向の一方側に寄せて配置されていることがより好ましい。 (4) In the above embodiment, the side protrusion 56 may not have the stepped portion 57 . In this case, it is preferable that the side protrusions 56 are configured so that the width becomes narrower toward the tip side, and the narrowest portion of the side protrusions 56 extends in the short side direction of the main board 54. It is more preferable that they are arranged closer to one side.

１０ シートパッド
１１ パッド本体
２０ 収容凹部
３０ 補強用面材
３１ 開口部
３２ 係合孔
３３ 磁性体
５０ 発泡成形型
５１ 上型
５２ 下型
５３ 中子
５６ サイド突条
６０ 係止突部
６２ 傾斜面
６５ マグネット
９０ エアバッグ装置 REFERENCE SIGNS LIST 10 Seat pad 11 Pad main body 20 Receiving recess 30 Reinforcement surface material 31 Opening 32 Engagement hole 33 Magnetic body 50 Foaming mold 51 Upper mold 52 Lower mold 53 Core 56 Side protrusion 60 Locking projection 62 Inclined surface 65 Magnet 90 Airbag device

Claims (7)

凹部を備えるパッド本体が、前記凹部の内面を覆う補強用面材と一体に発泡成形されてなるシートパッドであって、
前記補強用面材には、前記凹部の奥部に配置される第１の開口と、前記第１の開口と前記凹部の入口との間で前記第１の開口寄りに配置されて前記第１の開口が開口する方向とは交差する方向に開口する第２の開口と、が設けられているシートパッド。 A seat pad formed by integrally foam-molding a pad body having a recess with a reinforcing surface material covering the inner surface of the recess,
The reinforcing face member has a first opening arranged at the back of the recess, and the first opening arranged near the first opening between the first opening and the entrance of the recess. A seat pad provided with a second opening that opens in a direction that intersects with the opening direction of the opening. エアバッグ装置が収容される凹部を備えるパッド本体が、前記凹部の内面を覆う補強用面材と一体に発泡成形されてなるシートパッドであって、A seat pad in which a pad body having a recess for accommodating an airbag device is foam-molded integrally with a reinforcing surface material covering the inner surface of the recess,
前記補強用面材には、前記凹部の奥部に配置される第１の開口と、前記第１の開口よりも前記凹部の入口側に配置されて前記第１の開口が開口する方向とは交差する方向に開口する第２の開口と、が設けられ、The reinforcing face member has a first opening arranged in the inner part of the recess, and a direction in which the first opening is arranged closer to the entrance of the recess than the first opening. A second opening that opens in a crossing direction is provided,
前記第２の開口は、前記凹部のうち前記エアバッグ装置が配置される部分よりも奥側に配置されているシートパッド。The seat pad, wherein the second opening is arranged on the back side of a portion of the recess where the airbag device is arranged. 凹部を備えるパッド本体が、前記凹部の内面を覆う補強用面材と一体に発泡成形されてなるシートパッドであって、A seat pad formed by integrally foam-molding a pad body having a recess with a reinforcing surface material covering the inner surface of the recess,
前記補強用面材には、前記凹部の奥部に配置される第１の開口と、前記第１の開口よりも前記凹部の入口側に配置されて前記第１の開口が開口する方向とは交差する方向に開口する第２の開口と、が設けられ、The reinforcing face member has a first opening arranged in the inner part of the recess, and a direction in which the first opening is arranged closer to the entrance of the recess than the first opening. A second opening that opens in a crossing direction is provided,
前記第２の開口として、前記パッド本体のうち着座者を受ける部分に重なったものが含まれるシートパッド。The seat pad, wherein the second opening includes a part of the pad body that overlaps with the part of the pad body that receives the seated person. 凹部を備えるパッド本体が、前記凹部の内面を覆う補強用面材と一体に発泡成形されてなるシートパッドであって、A seat pad formed by integrally foam-molding a pad body having a recess with a reinforcing surface material covering the inner surface of the recess,
前記補強用面材には、前記凹部の奥部に配置される第１の開口と、前記第１の開口よりも前記凹部の入口側における該第１の開口の開口縁に配置されて前記第１の開口が開口する方向とは交差する方向に開口する第２の開口と、が設けられているシートパッド。The reinforcing face member has a first opening arranged at the inner part of the recess, and the first opening arranged at the opening edge of the first opening closer to the entrance of the recess than the first opening. A seat pad provided with a second opening that opens in a direction crossing the direction in which the first opening opens. 凹部を備えるパッド本体が、前記凹部の内面を覆う補強用面材と一体に発泡成形されてなるシートパッドであって、
前記補強用面材には、前記凹部の奥部に配置される第１の開口と、前記第１の開口よりも前記凹部の入口側に配置されて前記第１の開口が開口する方向とは交差する方向に開口し、互いに対向する１対の第２の開口と、が設けられているシートパッド。 A seat pad formed by integrally foam-molding a pad body having a recess with a reinforcing surface material covering the inner surface of the recess,
The reinforcing face member has a first opening arranged in the inner part of the recess, and a direction in which the first opening is arranged closer to the entrance of the recess than the first opening. A seat pad provided with a pair of second openings that open in cross directions and face each other . 凹部を備えるパッド本体が、前記凹部の内面を覆う補強用面材と一体に発泡成形されてなるシートパッドであって、A seat pad formed by integrally foam-molding a pad body having a recess with a reinforcing surface material covering the inner surface of the recess,
前記補強用面材には、前記凹部の奥部に配置される第１の開口と、前記第１の開口よりも前記凹部の入口側に配置されて前記第１の開口が開口する方向とは交差する方向に開口する第２の開口と、が設けられ、The reinforcing face member has a first opening arranged in the inner part of the recess, and a direction in which the first opening is arranged closer to the entrance of the recess than the first opening. A second opening that opens in a crossing direction is provided,
前記パッド本体の前記凹部の内面のうち前記第２の開口と重なる部分には、へこみが形成されているシートパッド。A seat pad in which a recess is formed in a portion of the inner surface of the recess of the pad body that overlaps the second opening. 前記パッド本体において、前記第１の開口と重なる部分は、前記第２の開口と重なる部分よりも、薄肉になっている請求項１から６の何れか１の請求項に記載のシートパッド。The seat pad according to any one of claims 1 to 6, wherein a portion of the pad body overlapping with the first opening is thinner than a portion overlapping with the second opening.
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006000416A (en) 2004-06-17 2006-01-05 Toyo Tire & Rubber Co Ltd Seat pad
JP2006006349A (en) 2004-06-21 2006-01-12 Toyo Tire & Rubber Co Ltd Method of manufacturing pad for seat
JP2011143746A (en) 2010-01-12 2011-07-28 Bridgestone Corp Reinforcing material for foam-molded article, foam-molded member, and method of manufacturing foam-molded member
WO2011093386A1 (en) 2010-01-28 2011-08-04 株式会社ブリヂストン Foam molding die and method for producing foam molded member
JP2014054928A (en) 2012-09-13 2014-03-27 Toyota Boshoku Corp Vehicular seat provided with side air bag

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006000416A (en) 2004-06-17 2006-01-05 Toyo Tire & Rubber Co Ltd Seat pad
JP2006006349A (en) 2004-06-21 2006-01-12 Toyo Tire & Rubber Co Ltd Method of manufacturing pad for seat
JP2011143746A (en) 2010-01-12 2011-07-28 Bridgestone Corp Reinforcing material for foam-molded article, foam-molded member, and method of manufacturing foam-molded member
WO2011093386A1 (en) 2010-01-28 2011-08-04 株式会社ブリヂストン Foam molding die and method for producing foam molded member
JP2014054928A (en) 2012-09-13 2014-03-27 Toyota Boshoku Corp Vehicular seat provided with side air bag

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