WO2020032277A1 - Vehicle seat - Google Patents

Vehicle seat Download PDF

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Publication number
WO2020032277A1
WO2020032277A1 PCT/JP2019/031744 JP2019031744W WO2020032277A1 WO 2020032277 A1 WO2020032277 A1 WO 2020032277A1 JP 2019031744 W JP2019031744 W JP 2019031744W WO 2020032277 A1 WO2020032277 A1 WO 2020032277A1
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Prior art keywords
skin
pad
seat
frame
airbag
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PCT/JP2019/031744
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French (fr)
Japanese (ja)
Inventor
仁一 田邉
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テイ・エス テック株式会社
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Priority claimed from JP2018150815A external-priority patent/JP7296032B2/en
Priority claimed from JP2018150816A external-priority patent/JP7353552B2/en
Application filed by テイ・エス テック株式会社 filed Critical テイ・エス テック株式会社
Publication of WO2020032277A1 publication Critical patent/WO2020032277A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/68—Seat frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Seats For Vehicles (AREA)
  • Air Bags (AREA)

Abstract

A vehicle seat provided with: a first cover fixed to a pad; and a second cover for covering a portion of the pad directly or via the first cover, the second cover being detachably connected to the first cover via a connector; an airbag module being further provided to a frame; wherein an airbag module (AM) for storing an airbag (52) capable of deploying outward from the surface of the pad (P2) is provided to the frame (20), and a breakable part (m1) capable of breaking so as to allow the airbag (52) to deploy is provided in the first and/or the second covers (25, 26) at an interval from connectors (f1-f4). Through this configuration, it is possible to avoid contact and interference with the airbag by the connector during deployment of the airbag, and to ensure correct operation of the airbag.

Description

乗物用シートVehicle seat
　本発明は、乗物用シート、特にパッドと、パッドの裏面を支持するフレームと、パッドに固定されてパッドの表面を覆う第１表皮と、第１表皮に接続具を介して着脱可能に接続されてパッドの表面の一部を直接又は第１表皮を介して覆う第２表皮とを備えた乗物用シートに関する。 The present invention relates to a vehicle seat, in particular, a pad, a frame supporting a back surface of the pad, a first skin fixed to the pad and covering the surface of the pad, and detachably connected to the first skin via a connector. And a second skin covering part of the surface of the pad directly or via the first skin.
　上記乗物用シートにおいて第１表皮に対し第２表皮を必要に応じて別の第２表皮と随時取り替え、交換できる利点がある。このような着脱容易表皮を有する乗物用シートは、例えば特許文献１に示されるように従来公知であり、その公知のシートでは、第１，第２表皮の相互間の接続具としてファスナが用いられている。 (4) The vehicle seat has an advantage that the second skin can be replaced with another second skin as needed with respect to the first skin as needed. A vehicle seat having such an easily removable skin is conventionally known, for example, as shown in Patent Document 1, and in the known seat, a fastener is used as a connecting tool between the first and second skins. ing.
　また、乗物用シートにおいて、パッドの裏面を支持するフレームに、パッドの表面より外方に展開可能なエアバッグを収納するエアバッグモジュールを設けたものが、例えば特許文献２に示されるように従来公知である。 Further, in a vehicle seat, an airbag module for accommodating an airbag that can be deployed outward from the surface of the pad is provided on a frame supporting the back surface of the pad, as disclosed in Patent Document 2, for example. It is known.
日本特開２０１６－９７２７５号公報Japanese Patent Application Laid-Open No. 2016-97275 日本特開２０１５－２０４５７号公報Japanese Patent Application Laid-Open No. 2015-20457 日本特開２０１８－７７１７号公報Japanese Patent Application Publication No. 2018-7717
　＜第１の課題＞
　特許文献１のような従来の着脱容易表皮付きの乗物用シートでは、これを特許文献２のようなエアバッグ付きシートにまで適用することは想定されていないが、もし適用した場合に、第１，第２表皮相互間の接続具（例えばファスナ）と、パッド表面からのエアバッグの展開開始部位とが重なり合うほどに近ければ、その接触具が展開初期のエアバッグと干渉し易くなる可能性がある、といった第１の課題がある。 <First issue>
In a conventional vehicle seat with an easily removable skin as in Patent Literature 1, it is not assumed that this is applied to a seat with an airbag as in Patent Literature 2. If the connecting device (for example, fastener) between the second skin and the airbag deployment start portion from the pad surface are close enough to overlap, the contact device may easily interfere with the airbag in the initial stage of deployment. There is a first problem that there is.
　そして、本発明は、上記第１の問題を解決可能な乗物用シートを提供することを第１の目的としている。 The first object of the present invention is to provide a vehicle seat that can solve the first problem.
　＜第２の課題＞
　一方、乗物用シート、特にパッドと、パッドをその裏面側から支持するフレームと、パッドの少なくとも表面を覆う表皮とを備えた乗物用シートにおいて、パッドに、表皮の一部を引き込むための引込み溝と、引込み溝の底部に一端が開口すると共にパッドの裏面に他端が開口する引込み孔とを設け、表皮の、引込み溝内への引込み部分が、引込み孔を貫通する連結部材を介してシートのフレームに連結されるものは、例えば特許文献３に示されるように従来公知である。 <Second task>
On the other hand, in a vehicle seat including a vehicle seat, particularly a pad, a frame supporting the pad from the back surface side, and a skin covering at least the surface of the pad, a drawing groove for drawing a part of the skin into the pad. And a draw-in hole having one end opened at the bottom of the draw-in groove and the other end opened at the back surface of the pad. Is conventionally known as disclosed in Patent Document 3, for example.
　ところが特許文献３のような従来の表皮付きシートでは、表皮の引き込み部位（即ち引込み溝及び引込み孔）が、シートの骨格をなすフレーム（例えばサイドフレーム）から離間していた。そのため、表皮の引き込み部分を引込み孔を通してフレームに連結する連結部材が大型化し、これがシートの重量増やコスト増の要因となる、といった第２の課題がある。 However, in a conventional sheet with a skin as in Patent Literature 3, a portion where the skin is drawn (that is, a drawing groove and a drawing hole) is separated from a frame (for example, a side frame) forming a skeleton of the sheet. Therefore, there is a second problem that the connecting member for connecting the drawn portion of the skin to the frame through the drawn hole becomes large, which causes an increase in weight and cost of the seat.
　本発明は、上記第２の問題を解決可能な乗物用シートを提供することを第２の目的とする。 。 A second object of the present invention is to provide a vehicle seat that can solve the second problem.
　＜上記第１の課題の解決手段＞
　上記第１の目的を達成するために、本発明は、パッドと、前記パッドを裏面側から支持するフレームと、前記パッドに固定されて該パッドの表面を覆う第１表皮と、前記第１表皮に接続具を介して着脱可能に接続されて前記パッドの表面の一部を直接又は前記第１表皮を介して覆う第２表皮とを備えた乗物用シートにおいて、前記フレームには、前記パッドの表面より外方に展開可能なエアバッグを収納するエアバッグモジュールが設けられ、前記第１，第２表皮のうち少なくとも一方の表皮には、前記エアバッグの前記展開を許容するように破断可能な破断許容部が前記接続具から間隔をおいて配設されることを第１の特徴とする。 <Means for Solving the First Problem>
In order to achieve the first object, the present invention provides a pad, a frame for supporting the pad from the back side, a first skin fixed to the pad and covering the surface of the pad, and a first skin. And a second skin that is detachably connected to the pad via a connector and covers a part of the surface of the pad directly or via the first skin. An airbag module that accommodates an airbag that can be deployed outward from the surface is provided, and at least one of the first and second skins is rupturable to allow the deployment of the airbag. A first feature is that the break allowance portion is disposed at a distance from the connection tool.
　また本発明は、第１の特徴に加えて、前記破断許容部が、前記第１表皮に設けられることを第２の特徴とする。 In addition, in the present invention, in addition to the first feature, the second feature is that the breakable portion is provided on the first skin.
　また本発明は、第２の特徴に加えて、前記第１表皮の上に前記第２表皮と重なり合う領域が存在しており、前記破断許容部が前記領域の外で前記第１表皮に設けられることを第３の特徴とする。 In addition, in the present invention, in addition to the second feature, a region overlapping the second skin exists on the first skin, and the break allowance portion is provided on the first skin outside the region. This is the third feature.
　また本発明は、第２の特徴に加えて、前記第１表皮の上に前記第２表皮と重なり合う領域が存在しており、前記領域において第１の前記破断許容部が前記第１表皮に設けられると共に、該第１の破断許容部と重なり合う第２の破断許容部が前記第２表皮に設けられることを第４の特徴とする。 In addition, in the present invention, in addition to the second feature, a region overlapping the second skin exists on the first skin, and the first breakable portion is provided on the first skin in the region. A fourth feature is that a second breakable portion overlapping the first breakable portion is provided on the second skin.
　また本発明は、第１又は第２の特徴に加えて、前記パッド及び前記フレームは、乗員の背中を支持するシートバック部におけるバックパッド及びサイドフレームであり、前記破断許容部は、前記エアバッグモジュールの周辺に位置する特定の前記接続具から、前記シートバック部の前後方向に間隔をおいて配置されることを第５の特徴とする。 In addition, in addition to the first or second feature, the present invention is characterized in that the pad and the frame are a back pad and a side frame in a seat back portion supporting an occupant's back, and the break allowance portion is provided in the airbag. A fifth feature is that the connector is disposed at an interval in the front-rear direction of the seat back portion from a specific connection tool located around a module.
　また本発明は、第２の特徴に加えて、前記第１表皮又は前記第２表皮の、前記エアバッグモジュールの周辺に位置する特定の接続具と隣接する部分には、展開時の前記エアバッグと該特定の接続具との接触を抑制する接触抑制部が、該特定の接続具に沿うように設けられることを第６の特徴とする。 Further, in addition to the second feature, the present invention provides the airbag at the time of deployment in a portion of the first skin or the second skin adjacent to a specific connector located around the airbag module. A sixth feature is that a contact suppressing portion that suppresses contact between the connector and the specific connector is provided along the specific connector.
　また本発明は、第６の特徴に加えて、前記接触抑制部は、該接触抑制部が設けられる表皮の表面より外方に張出した外方張出部で構成され、前記外方張出部の張出高さは、前記特定の接続具の張出高さよりも高いことを第７の特徴とする。 In addition, in addition to the sixth feature, the present invention is characterized in that the contact suppressing portion is constituted by an outward projecting portion extending outward from a surface of the skin on which the contact suppressing portion is provided, The seventh feature is that the overhang height is higher than the overhang height of the specific connector.
　また本発明は、第１～第７の何れかの特徴に加えて、前記パッドは、前記第１，第２表皮のうち少なくとも前記第１表皮の一部を引き込むための引込み溝と、前記引込み溝の底部に一端が開口すると共に前記パッドの裏面に他端が開口する引込み孔とを有し、前記第１表皮の、前記引込み溝内への引込み部分が、前記引込み孔を貫通する連結部材の一端部に結合され、前記連結部材の他端部が前記フレームの内側面に直接又は支持部材を介して連結されると共に、その連結部を避けるようにして前記エアバッグモジュールが前記フレームに取付けられることを第８の特徴とする。 In addition, in the invention, in addition to any one of the first to seventh features, the pad may include a recess groove for retracting at least a part of the first skin among the first and second skins, A connecting hole having an opening at one end at the bottom of the groove and an opening at the other end on the back surface of the pad, wherein a portion of the first skin to be drawn into the drawing groove penetrates the drawing hole; And the other end of the connecting member is connected to the inner surface of the frame directly or via a support member, and the airbag module is attached to the frame so as to avoid the connecting portion. This is an eighth feature.
　また本発明は、第８の特徴に加えて、前記エアバッグモジュールの、前記フレームに取付けられる被取付部は、前記フレームを挟んで前記連結部とは反対側に配置されることを第９の特徴とする。 According to a ninth aspect of the present invention, in addition to the eighth aspect, a portion to be attached to the frame of the airbag module is disposed on a side opposite to the connecting portion with the frame interposed therebetween. Features.
　また本発明は、第９の特徴に加えて、前記フレームの、前記被取付部と前記連結部とに挟まれた板状の壁部分は、該壁部分の厚さ方向一方側に凹んだ凹曲部を有することを第１０の特徴とする。 In addition, in the present invention, in addition to the ninth feature, a plate-like wall portion of the frame sandwiched between the attached portion and the connecting portion may have a concave recessed to one side in the thickness direction of the wall portion. A tenth feature is to have a curved portion.
　本発明において、「破断許容部」とは、エアバッグの展開時にその展開を許容するために表皮に予め設けられる、展開初期のエアバッグにより破断可能な脆弱部分をいう。 に お い て In the present invention, the “fracture-permissible portion” refers to a fragile portion which is provided in advance on the skin to allow the airbag to be deployed when the airbag is deployed and which can be broken by the airbag in the initial stage of deployment.
　また本発明において、「連結部」とは、連結部材の他端部がフレームの内側面に直接連結される場合は、連結部材の他端部とフレームの内側面との結合部をいい、また連結部材の他端部がフレームの内側面に支持部材を介して連結される場合は、支持部材とフレームの内側面との結合部とをいう。 In the present invention, when the other end of the connecting member is directly connected to the inner surface of the frame, the `` connecting portion '' refers to a connecting portion between the other end of the connecting member and the inner surface of the frame, When the other end of the connecting member is connected to the inner surface of the frame via the supporting member, it refers to a connecting portion between the supporting member and the inner surface of the frame.
　＜前記第２の課題の解決手段＞
　前記第２の目的を達成するために、本発明は、パッド（Ｐ１，Ｐ２）と、前記パッド（Ｐ１，Ｐ２）を裏面側から支持するフレーム（Ｆ１，Ｆ２）と、前記パッド（Ｐ１，Ｐ２）の少なくとも表面を覆う表皮（Ｃ１，Ｃ２）とを備えた乗物用シートにおいて、前記フレーム（Ｆ１，Ｆ２）には、前記パッド（Ｐ１，Ｐ２）を支持する受圧部材（１１，１３，１４，１４′，２４，２８）が架設され、前記パッド（Ｐ１，Ｐ２）は、前記表皮（Ｃ１，Ｃ２）の一部を引き込むための引込み溝（ｇ１～ｇ３，ｇ１′～ｇ３′）と、前記引込み溝（ｇ１～ｇ３，ｇ１′～ｇ３′）の底部に一端が開口すると共に前記パッド（Ｐ１，Ｐ２）の裏面に他端が開口する引込み孔（Ｐ１ｈ，Ｐ２ｈ）とを有し、前記表皮（Ｃ１，Ｃ２）の、前記引込み溝（ｇ１～ｇ３，ｇ１′～ｇ３′）内への引込み部分が、前記引込み孔（Ｐ１ｈ，Ｐ２ｈ）を貫通する連結部材（Ｊ１～Ｊ３，Ｊ１′～Ｊ３′）を介して前記受圧部材（１１，１３，１４，１４′，２４，２８）に連結されることを第１の特徴とする。この第１の特徴によれば、シートのフレームに、パッドを支持する受圧部材が架設される乗物用シートにおいて、パッドの引込み溝内への表皮の引込み部分が、パッドの引込み孔を貫通する連結部材を介して受圧部材に連結されるので、パッドの引込み孔に対しフレームよりも近接配置可能な受圧部材に連結部材を連結したことで、連結部材の小型軽量化と構造簡素化を図ることができ、延いてはシートの重量軽減やコスト節減に寄与することができる。 <Means for Solving the Second Problem>
In order to achieve the second object, the present invention provides a pad (P1, P2), a frame (F1, F2) for supporting the pad (P1, P2) from the back side, and the pad (P1, P2). ), The pressure receiving members (11, 13, 14, 14) supporting the pads (P1, P2) are provided on the frames (F1, F2). 14 ', 24, 28), the pads (P1, P2) are provided with recessed grooves (g1 to g3, g1' to g3 ') for retracting a part of the skin (C1, C2). A bottom surface of the recess (g1 to g3, g1 'to g3'), a bottom surface of the pad (P1, P2), and a back surface of the pad (P1, P2); (C1, C2), the recess groove (g) To g3, g1 'to g3') through the connecting members (J1 to J3, J1 'to J3') penetrating through the drawing holes (P1h, P2h). , 14, 14 ', 24, 28). According to the first feature, in a vehicle seat in which a pressure receiving member for supporting a pad is erected on a frame of the seat, a portion where a skin is drawn into a drawing groove of the pad is connected through a drawing hole of the pad. Since the connection member is connected to the pressure receiving member via the member, the connection member is connected to the pressure receiving member that can be disposed closer to the drawing hole of the pad than the frame, so that the connection member can be reduced in size and weight and simplified in structure. As a result, the weight of the seat can be reduced and the cost can be reduced.
　また本発明は、第１の特徴に加えて、前記受圧部材は、板状部材（１１，１４，１４′，２４）であることを第２の特徴とする。この第２の特徴によれば、受圧部材は、板状部材であるので、連結部材の受圧部材への取付部位を比較的広範囲に確保、設定可能となり、これにより、連結部材が取付け易くなると共に、連結部材の取付剛性を強化可能となる。 The present invention is characterized in that, in addition to the first feature, the pressure receiving member is a plate-like member (11, 14, 14 ', 24) as a second feature. According to the second feature, since the pressure receiving member is a plate-shaped member, the attachment site of the connecting member to the pressure receiving member can be secured and set in a relatively wide range, thereby making it easy to attach the connecting member. This makes it possible to enhance the mounting rigidity of the connecting member.
　また本発明は、第２の特徴に加えて、前記板状部材（１１）には、凹陥部（１１ｂｂ）又は隆起部が設けられ、前記連結部材（Ｊ１～Ｊ３）は、前記凹陥部（１１ｂｂ）上または前記板状部材（１１）の、該凹陥部（１１ｂｂ）に隣接した部位、或いは前記隆起部上または前記板状部材（１１）の、該隆起部に隣接した部位に連結されることを第３の特徴とする。この第３の特徴によれば、受圧部材である板状部材には、凹陥部又は隆起部が設けられ、連結部材は、隆起部上または板状部材の、隆起部に隣接した部位、或いは凹陥部上または板状部材の、凹陥部に隣接した部位に連結されるので、板状部材に凹陥部又は隆起部を設けたことにより生じた凹凸形態により、連結部材の取付剛性が更に強化可能となる。 Further, in the present invention, in addition to the second feature, the plate-like member (11) is provided with a concave portion (11bb) or a raised portion, and the connecting member (J1 to J3) is provided with the concave portion (11bb). ) Being connected to a portion of the plate-like member (11) above or adjacent to the concave portion (11bb), or to a portion of the plate-like member (11) adjacent to the protrusion on the ridge or the plate-like member (11). Is a third feature. According to the third feature, the plate-shaped member which is the pressure-receiving member is provided with a concave portion or a raised portion, and the connecting member is provided on the raised portion or on the plate-shaped member adjacent to the raised portion, or the concave portion. Since it is connected to the portion adjacent to the recessed portion of the plate or the plate-like member, the mounting rigidity of the connection member can be further enhanced by the uneven shape caused by providing the recessed portion or the raised portion in the plate-shaped member. Become.
　また本発明は、第２の特徴に加えて、前記板状部材（１１）には、凹陥部（１１ｂｂ）又は隆起部が複数設けられ、前記連結部材（Ｊ１～Ｊ３）は、前記複数の凹陥部（１１ｂｂ）の間又は前記複数の隆起部の間で前記板状部材（１１）に連結されることを第４の特徴とする。この第４の特徴によれば、受圧部材である板状部材には、凹陥部又は隆起部が複数設けられ、連結部材は、複数の隆起部の間又は複数の凹陥部の間で板状部材に連結されるので、受圧部材において凹陥部又は隆起部の補強リブ効果により剛性が高くなる特定部位（即ち隆起部相互間又は凹陥部相互間の部位）が連結部材の取付部位となり、連結部材の取付剛性強化を図る上で有利となる。 Further, in the present invention, in addition to the second feature, the plate-shaped member (11) is provided with a plurality of recessed portions (11bb) or raised portions, and the connecting members (J1 to J3) are provided with the plurality of recessed portions. A fourth feature is that the plate-like member (11) is connected between the portions (11bb) or between the plurality of raised portions. According to the fourth feature, the plate-shaped member as the pressure receiving member is provided with a plurality of recesses or ridges, and the connecting member is provided between the plurality of ridges or between the plurality of recesses. Therefore, in the pressure receiving member, a specific portion (that is, a portion between the ridges or between the dents) where the rigidity is increased by the reinforcing rib effect of the recess or the ridge is an attachment portion of the connection member, and This is advantageous in enhancing the mounting rigidity.
　また本発明は、第２の特徴に加えて、前記連結部材（Ｊ１～Ｊ３，Ｊ１′～Ｊ３′）は、前記板状部材（１１，１４，１４′，２４）に設けた貫通孔（ｈ１～ｈ３，ｈ１′，ｈ２′）に連結されることを第５の特徴とする。この第５の特徴によれば、連結部材は、板状部材に設けた貫通孔に連結されるので、受圧部材が板状部材であっても、これに連結部材を係止させ易くなって取付作業性が高められる。 Further, according to the present invention, in addition to the second feature, the connecting members (J1 to J3, J1 'to J3') are provided with through holes (h1) provided in the plate-like members (11, 14, 14 ', 24). , H5 ', and h2'). According to the fifth aspect, since the connecting member is connected to the through hole provided in the plate-shaped member, even if the pressure receiving member is a plate-shaped member, it is easy to lock the connecting member to the plate-shaped member, and Workability is improved.
　また本発明は、第２の特徴に加えて、前記連結部材（Ｊ１）は、前記板状部材（１１）に設けた貫通孔（ｈ１～ｈ３）を避けた位置で、該板状部材（１１）に連結されることを第６の特徴とする。この第６の特徴によれば、連結部材は、板状部材に設けた貫通孔を避けた位置で、板状部材に連結されるので、板状部材の貫通孔に連結部材を係止させることに因る取付剛性の低下が回避され、取付剛性強化を図る上で有利である。 Further, in the present invention, in addition to the second feature, the connecting member (J1) is provided at a position avoiding the through holes (h1 to h3) provided in the plate member (11). The sixth feature is that the connection is made to ()). According to the sixth aspect, since the connecting member is connected to the plate member at a position avoiding the through hole provided in the plate member, the connecting member is locked in the through hole of the plate member. Therefore, a decrease in mounting rigidity due to the above is avoided, which is advantageous in enhancing mounting rigidity.
　また本発明は、第２の特徴に加えて、前記板状部材（１１，２４）には、該板状部材（１１，２４）の、前記パッド（Ｐ１，Ｐ２）の裏面に沿う基板部（１１ｂ，２４ｂ）から前記パッド（Ｐ１，Ｐ２）に向かって斜めに立ち上がるよう延びる傾斜部（１１ｓ，２４ｓ）が設けられ、前記連結部材（Ｊ１，Ｊ２，Ｊ１′，Ｊ２′）は、前記傾斜部（１１ｓ，２４ｓ）に連結されることを第７の特徴とする。この第７の特徴によれば、板状部材には、これの基板部からパッドに向かって斜めに立ち上がるよう延びる傾斜部が設けられ、その傾斜部に連結部材が連結されるので、その連結部位をパッドの厚さ方向でパッド側に近づけることができ、それだけ連結部材の小型軽量化に寄与することができる。 Further, in the present invention, in addition to the second feature, the plate-like member (11, 24) includes a substrate portion (11, 24) along a back surface of the pad (P1, P2). 11b, 24b) are provided with inclined portions (11s, 24s) extending obliquely toward the pads (P1, P2), and the connecting members (J1, J2, J1 ', J2') are provided with the inclined portions. (11s, 24s) is a seventh feature. According to the seventh feature, the plate-shaped member is provided with the inclined portion that extends obliquely from the substrate portion toward the pad, and the connecting member is connected to the inclined portion. Can be made closer to the pad side in the thickness direction of the pad, which can contribute to the reduction in size and weight of the connecting member.
　また本発明は、第２の特徴に加えて、前記板状部材（１１，２４）には、該板状部材（１１，２４）の、前記パッド（Ｐ１，Ｐ２）の裏面に沿う基板部（１１ｂ，２４ｂ）から前記パッド（Ｐ１，Ｐ２）に向かって斜めに立ち上がるよう延びる傾斜部（１１ｓ，２４ｓ）が設けられ、前記連結部材（Ｊ１～Ｊ３，Ｊ１′～Ｊ３′）は、前記傾斜部（１１ｓ，２４ｓ）を避けた位置で前記板状部材（１１，２４）に連結されることを第８の特徴とする。この第８の特徴によれば、連結部材は、板状部材の傾斜部を避けた位置で板状部材に連結されるので、傾斜部の傾斜に起因した取付作業性の低下が回避される。 Further, in the present invention, in addition to the second feature, the plate-like member (11, 24) includes a substrate portion (11, 24) along a back surface of the pad (P1, P2). 11b, 24b), there are provided inclined portions (11s, 24s) extending obliquely toward the pads (P1, P2), and the connecting members (J1 to J3, J1 'to J3') are provided with the inclined portions. An eighth feature is that the plate-like member (11, 24) is connected to a position avoiding (11s, 24s). According to the eighth feature, since the connecting member is connected to the plate-shaped member at a position avoiding the inclined portion of the plate-shaped member, it is possible to avoid a decrease in mounting workability due to the inclination of the inclined portion.
　また本発明は、第２の特徴に加えて、前記板状部材（１４，１４′，２４）は、前記フレーム（Ｆ１，Ｆ２）に架設した複数のスプリング（１３）間又は複数のワイヤ（２８）間に支持され、前記連結部材（Ｊ１～Ｊ３，Ｊ１′～Ｊ３′）は、前記スプリング（１３）又は前記ワイヤ（２８）を避けた位置で前記板状部材（１４，１４′，２４）に連結されることを第９の特徴とする。この第９の特徴によれば、板状部材は、フレームに架設した複数のスプリング間又は複数のワイヤ間に支持され、連結部材は、スプリング又はワイヤを避けた位置で板状部材に連結されるので、ワイヤ又はスプリングの位置に影響されずに連結部材を板状部材に容易に取付けることができ、連結部材の取付作業性が良好である。 Further, in the present invention, in addition to the second feature, the plate-like member (14, 14 ', 24) is provided between a plurality of springs (13) provided on the frame (F1, F2) or a plurality of wires (28). ), The connecting members (J1 to J3, J1 'to J3') are connected to the plate-like members (14, 14 ', 24) at positions avoiding the spring (13) or the wire (28). Is a ninth feature of being connected to. According to the ninth feature, the plate-shaped member is supported between a plurality of springs or wires mounted on the frame, and the connecting member is connected to the plate-shaped member at a position avoiding the spring or the wire. Therefore, the connecting member can be easily attached to the plate-like member without being affected by the position of the wire or the spring, and the workability of attaching the connecting member is good.
　また本発明は、第１の特徴に加えて、前記受圧部材は、前記パッド（Ｐ１，Ｐ２）を支持すべく前記フレーム（Ｆ１，Ｆ２）に架設したスプリング（１３）又はワイヤ（２８）であることを第１０の特徴とする。この第１０の特徴によれば、受圧部材は、パッドを支持すべくフレームに架設したスプリング又はワイヤであるので、パッド支持用のスプリング又はワイヤに連結部材を直結可能となり、これにより、連結構造の簡素化が図られると共に、連結部材の取付作業性が良好である。 Further, according to the present invention, in addition to the first feature, the pressure receiving member is a spring (13) or a wire (28) installed on the frame (F1, F2) to support the pad (P1, P2). This is the tenth feature. According to the tenth feature, since the pressure receiving member is a spring or a wire erected on the frame to support the pad, the connection member can be directly connected to the spring or the wire for supporting the pad. Simplification is achieved, and the workability of attaching the connecting member is good.
　第１の特徴によれば、パッドに固定される第１表皮と、第１表皮に接続具を介して着脱可能に接続されてパッドの一部を直接又は第１表皮を介して覆う第２表皮とを備えた乗物用シートであって、フレームにエアバッグモジュールを設けたものにおいて、第１，第２表皮のうち少なくとも一方の表皮には、エアバッグの展開を許容するように破断可能な破断許容部が接続具から間隔をおいて配設されるので、エアバッグの展開初期に第１，第２表皮間の接続具がエアバッグに接触、干渉するのを効果的に回避でき、エアバッグの的確な作動を確保する上で有利となる。 According to the first feature, a first skin fixed to the pad, and a second skin that is detachably connected to the first skin via a connector and covers a part of the pad directly or through the first skin. A vehicle seat provided with an airbag module on a frame, wherein at least one of the first and second skins is rupturable to allow deployment of the airbag. Since the permitting portion is arranged at a distance from the connecting device, it is possible to effectively prevent the connecting device between the first and second skins from contacting and interfering with the airbag in the initial stage of deployment of the airbag, and This is advantageous in ensuring an accurate operation of.
　また第２の特徴によれば、破断許容部が、パッドに固定の第１表皮に設けられるので、破断許容部がパッドに対しずれ動くのを効果的に回避でき、エアバッグの作動をより安定させることができる。 According to the second feature, since the breakable portion is provided on the first skin fixed to the pad, the breakable portion can be effectively prevented from moving relative to the pad, and the operation of the airbag is more stable. Can be done.
　また第３の特徴によれば、第１表皮の上に第２表皮と重なり合う領域が存在しても、第１表皮の破断許容部が該領域の外に配置されるので、エアバッグの展開動作が第２表皮で阻害される虞れはなくなり、エアバッグの的確な作動を確保する上で有利となる。 According to the third feature, even if there is an area on the first skin that overlaps with the second skin, the break allowance portion of the first skin is arranged outside the area, so that the airbag is deployed. There is no danger that the airbag will be obstructed by the second skin, which is advantageous in ensuring accurate operation of the airbag.
　また第４の特徴によれば、第１表皮の上に第２表皮と重なり合う領域が存在し且つこの領域に第１の破断許容部が配置されても、その第１の破断許容部と重なり合う第２の破断許容部が第２表皮に設けられるので、エアバッグの展開動作が第２表皮で阻害される虞れはなくなり、エアバッグの的確な作動を確保する上で有利となる。 Further, according to the fourth feature, even if there is a region on the first skin that overlaps the second skin and the first breakable portion is arranged in this region, the second breakable portion overlaps the first breakable portion. Since the break allowance portion 2 is provided on the second skin, there is no possibility that the deployment operation of the airbag is hindered by the second skin, which is advantageous in ensuring accurate operation of the airbag.
　また第５の特徴によれば、シートバック部において、破断許容部は、エアバッグモジュール周辺に位置する特定の接続具から、シートバック部の前後方向に間隔をおいて配置されるので、エアバッグが破断許容部を破断させつつシートバック部の斜め前方外側に展開しても、これと接続具との接触、干渉を効果的に防止でき、シートバック部用エアバッグの的確な作動を確保する上でより有利となる。 Further, according to the fifth feature, in the seat back portion, the break allowance portion is arranged at a distance from a specific connector located around the airbag module in the front-rear direction of the seat back portion. Even if it is deployed diagonally forward and outward of the seat back part while breaking the break allowance part, it can effectively prevent contact and interference with this and the connector, and secure the correct operation of the seat back airbag The above is more advantageous.
　また第６の特徴によれば、第１表皮又は第２表皮の、上記特定の接続具と隣接する部分には、展開時のエアバッグと該特定の接続具との接触を抑制する接触抑制部が、該特定の接続具に沿うように設けられるので、破断許容部が特定の接続具と比較的近い位置に在っても、接触抑制部が展開時のエアバッグと接続具との接触を抑制でき、エアバッグをより的確に展開、作動させることができる。 Further, according to the sixth feature, a contact suppressing portion that suppresses contact between the airbag and the specific connector when deployed in a portion of the first skin or the second skin adjacent to the specific connector. Is provided along the specific connector, so that even when the break allowance portion is located relatively close to the specific connector, the contact suppressing portion prevents the contact between the airbag and the connector during deployment. Thus, the airbag can be more appropriately deployed and operated.
　また第７の特徴によれば、接触抑制部は、これが設けられる表皮の表面より外方に張出した外方張出部より構成され、その外方張出部の張出高さは、上記特定の接続具の張出高さよりも高いので、第１又は第２表皮の表面に外方張出部を設けるだけの簡単な構造で、展開時のエアバッグと接続具との接触を効果的に抑制可能となる。 According to the seventh feature, the contact suppressing portion is constituted by an outwardly projecting portion extending outward from the surface of the skin on which the contact suppressing portion is provided, and the projecting height of the outwardly projecting portion is determined by the specific Is higher than the overhang height of the connecting device, so that the simple structure of merely providing an outer protrusion on the surface of the first or second skin can effectively contact the airbag and the connecting device during deployment. It can be suppressed.
　また第８の特徴によれば、パッドは、第１表皮の一部を引き込むための引込み溝と、引込み溝の底部に一端が開口すると共にパッドの裏面に他端が開口する引込み孔とを有し、第１表皮の、引込み溝内への引込み部分が、引込み孔を貫通する連結部材の一端部に結合され、連結部材の他端部がフレームの内側面に直接又は支持部材を介して連結されると共に、その連結部を避けるようにしてエアバッグモジュールがフレームに取付けられるので、シート構造の簡素化を図るべく、共通のフレームに表皮引込み用連結部材を連結し且つエアバッグモジュールを取付けるようにしても、エアバッグの作動に支障を来たす虞れはない。 According to the eighth feature, the pad has a drawing groove for drawing in a part of the first skin, and a drawing hole having one end opened at the bottom of the drawing groove and the other end opened at the back surface of the pad. A portion of the first skin that is drawn into the drawing groove is connected to one end of a connecting member that penetrates the drawing hole, and the other end of the connecting member is connected to the inner surface of the frame directly or via a support member. In addition, since the airbag module is attached to the frame so as to avoid the connecting portion, in order to simplify the seat structure, the connecting member for connecting the skin and the airbag module are attached to the common frame. Even so, there is no possibility that the operation of the airbag is hindered.
　また第９の特徴によれば、エアバッグモジュールの、フレームに取付けられる被取付部は、フレームを挟んで上記連結部とは反対側に配置されるので、上記連結部とエアバッグモジュールの被取付部とがフレームを挟んでコンパクトに対向配置可能となる。 According to the ninth feature, the mounting portion of the airbag module, which is mounted on the frame, is disposed on the opposite side of the connecting portion with respect to the frame. The parts can be compactly opposed to each other across the frame.
　また第１０の特徴によれば、フレームの、上記連結部とエアバッグモジュールの被取付部とに挟まれた板状の壁部分は、この壁部分の厚さ方向一方側に凹んだ凹曲部を有するので、その凹曲部が補強リブ効果を発揮することで、フレーム構造の軽量化を図りながらフレーム（特に板状壁部分）の剛性を高めることができ、延いてはフレームに対する表皮引込み用連結部材及びエアバッグモジュールの各取付剛性を高めることができる。 According to the tenth feature, the plate-shaped wall portion of the frame sandwiched between the connection portion and the mounted portion of the airbag module has a concave curved portion recessed to one side in the thickness direction of the wall portion. Since the concave portion exerts the reinforcing rib effect, the rigidity of the frame (particularly, the plate-like wall portion) can be increased while reducing the weight of the frame structure. The rigidity of each connection member and the airbag module can be increased.
　＜前記第１の課題の解決手段の実施形態を示す図面の説明＞
図１は本発明の第１実施形態に係る自動車用シートを示す全体斜視図である。 図２（Ａ）は、シートの座部及びシートバック部において着脱容易表皮をベース表皮から取り外した状態を示す斜視図、図２（Ｂ）は、ベース表皮を取付ける前の座部パッド及びバックパッドの単体斜視図である。 図３はシートバック部においてバックパッドを取り外してバックフレームを露出させた状態を示す斜視図である。 図４は図３の４－４線拡大断面図である。 図５は図３の５－５線拡大断面図である。 図６は図３の６－６線拡大断面図である。 図７（Ｃ）は、シートバック部を前方外側（即ちエアバッグ設置側）から見た斜視図、また図７（Ｄ）は、バックパッドを同じく前方外側から見た斜視図である。 図８はエアバッグの展開過程の一例を概略的に示す図５対応断面図であって、図８（Ｅ）はエアバッグの展開初期状態を示し、また図８（Ｆ）はエアバッグの展開完了状態を示す図面である。 図９は本発明の第２実施形態を示す図５対応断面図である。 図１０は本発明の第３実施形態を示す図５対応断面図である。 図１１は第３実施形態に係るエアバッグの展開過程の一例を概略的に示す断面図であって、図１１（Ｇ）は図８（Ｅ）に対応し、また図１１（Ｈ）は図８（Ｆ）に対応する図面である。 <Description of the drawings showing the embodiment of the means for solving the first problem>
FIG. 1 is an overall perspective view showing an automobile seat according to a first embodiment of the present invention. 2A is a perspective view showing a state in which the easily removable skin is removed from the base skin at the seat portion and the seat back portion of the seat, and FIG. 2B is a seat pad and a back pad before the base skin is attached. FIG. FIG. 3 is a perspective view showing a state in which a back pad is removed from a seat back portion to expose a back frame. FIG. 4 is an enlarged sectional view taken along line 4-4 of FIG. FIG. 5 is an enlarged sectional view taken along line 5-5 of FIG. FIG. 6 is an enlarged sectional view taken along line 6-6 of FIG. FIG. 7C is a perspective view of the seat back portion as viewed from the front outside (that is, the airbag installation side), and FIG. 7D is a perspective view of the back pad similarly viewed from the front outside. FIG. 8 is a cross-sectional view corresponding to FIG. 5 schematically showing an example of the process of deploying the airbag. FIG. 8 (E) shows an initial state of the deployment of the airbag, and FIG. It is a drawing showing a completed state. FIG. 9 is a sectional view corresponding to FIG. 5, showing a second embodiment of the present invention. FIG. 10 is a sectional view corresponding to FIG. 5, showing a third embodiment of the present invention. FIG. 11 is a cross-sectional view schematically showing an example of the deployment process of the airbag according to the third embodiment. FIG. 11 (G) corresponds to FIG. 8 (E), and FIG. 8 is a drawing corresponding to FIG.
　＜前記第２の課題の解決手段の実施形態を示す図面の説明＞
図１２は本発明の第１実施形態に係る自動車用シートを示す全体斜視図である。 図１３（Ａ）は、シートの座部及びシートバック部において着脱容易表皮をベース表皮から取り外した状態を示す斜視図、図１３（Ｂ）は、ベース表皮を取付ける前の座部パッド及びバックパッドの単体斜視図である。 図１４は座部パッド及びバックパッドを取り外して座部フレーム及びバックフレームを露出させた状態を示す斜視図（図１２対応図）である。 図１５は図１４の１５－１５線拡大断面図である。 図１６は図１４の１６－１６線拡大断面図である。 図１７（Ａ）は図１４の１７Ａ－１７Ａ線拡大断面図、また図１７（Ｂ）は図１４の１７Ｂ－１７Ｂ線拡大断面図である。 図１８（Ａ）～図１８（Ｄ）は、連結部材のパンフレームへの係止構造の種々の変形例を示す要部拡大断面図（図１５の一部対応図）である。 図１９は本発明の第２実施形態に係る自動車用シートの座部を示す斜視図である。 図２０（Ｅ）は図８の２０Ｅ－２０Ｅ線拡大断面図、図２０（Ｆ）は図８の２０Ｆ－２０Ｆ線拡大断面図である。 <Description of the drawings showing an embodiment of the means for solving the second problem>
FIG. 12 is an overall perspective view showing the automobile seat according to the first embodiment of the present invention. FIG. 13A is a perspective view showing a state in which the easily removable skin is removed from the base skin at the seat portion and the seat back portion of the seat, and FIG. 13B is a seat pad and a back pad before the base skin is attached. FIG. FIG. 14 is a perspective view (corresponding to FIG. 12) showing a state in which the seat pad and the back pad are removed to expose the seat frame and the back frame. FIG. 15 is an enlarged sectional view taken along line 15-15 of FIG. FIG. 16 is an enlarged sectional view taken along line 16-16 of FIG. FIG. 17A is an enlarged sectional view taken along line 17A-17A in FIG. 14, and FIG. 17B is an enlarged sectional view taken along line 17B-17B in FIG. 18 (A) to 18 (D) are enlarged cross-sectional views (partly corresponding views of FIG. 15) of main portions showing various modifications of the locking structure of the connecting member to the pan frame. FIG. 19 is a perspective view showing a seat portion of a vehicle seat according to the second embodiment of the present invention. FIG. 20E is an enlarged sectional view taken along line 20E-20E in FIG. 8, and FIG. 20F is an enlarged sectional view taken along line 20F-20F in FIG.
　＜ＡＭ～６１は前記第１の課題の解決手段の実施形態の参照符号の説明である＞
ＡＭ・・・・・エアバッグモジュール
Ｃ２・・・・・表皮としてのシートバック用表皮
ｆ１～ｆ４・・接続具としての第１～第４ファスナ
ｇ１，ｇ２・・引込み溝としての第１，第２引込み溝
Ｊ１，Ｊ２・・連結部材としての第１，第２連結部材
ｍ１・・・・・破断許容部，第１の破断許容部
ｍ２・・・・・第２の破断許容部
Ｐ２・・・・・パッドとしてのバックパッド
Ｐ２ｈ・・・・引込み孔
Ｓ・・・・・・車両用シートとしての自動車用シート
Ｓ２・・・・・シートバック部
ｗ・・・・・・連結部としての結合部
２０・・・・・フレームとしてのサイドフレーム
２０ｂ・・・・壁部分としてのフレーム主部
２０ｂａ・・・凹曲部
２５・・・・・第１表皮としてのベース表皮
２６・・・・・第２表皮としての着脱容易表皮
４１・・・・・支持部材
５０ｍ・・・・被取付部としてケース本体
５２・・・・・エアバッグ
６１・・・・・接触抑制部としての外方張出部
　＜Ｃ１，Ｃ２～２８は前記第２の課題の解決手段の実施形態の参照符号の説明である＞
Ｃ１，Ｃ２・・・・表皮としての座部用表皮，シートバック用表皮
Ｆ１，Ｆ２・・・・フレームとしての座部フレーム，バックフレーム
ｇ１～ｇ３，ｇ１′～ｇ３′・・・・引込み溝としての第１～第３引込み溝
ｈ１～ｈ３，ｈ１′，ｈ２′・・貫通孔
Ｊ１～Ｊ３，Ｊ１′～Ｊ３′・・連結部材としての第１～第３連結部材
Ｐ１，Ｐ２・・・・パッドとしての座部パッド，バックパッド
Ｐ１ｈ，Ｐ２ｈ・・引込み孔
Ｓ・・・・・・・・車両用シートとしての自動車用シート
１１，１１′・・・板状部材（受圧部材）としてのパンフレーム
１３・・・・・・・受圧部材としての波形スプリング
１４，１４′，２４・・板状部材（受圧部材）としての受圧板
１１ｂ，２４ｂ・・基板部
１１ｂｂ・・・・・凹陥部又は隆起部としての補強用ビード
１１ｓ，２４ｓ・・傾斜部としての側板部
２８・・・・・・・ワイヤ <AM to 61 are explanations of reference numerals of embodiments of the means for solving the first problem>
AM: airbag module C2: seat back skins f1 to f4 as skins; first to fourth fasteners g1 and g2 as connecting tools; first and fourth fastener grooves g1 and g2. .., 1 and 2 connecting members m1,... As a connecting member, a breakable portion, a first breakable portion m2,... A second breakable portion P2,. ··· Back pad P2h as a pad ··· Retraction hole S ··· Car seat S2 as a vehicle seat ··· Seat back portion w ··· As a connecting portion Joining part 20 Side frame 20b as a frame Main part 20ba as a wall part Concave part 25 Base skin 26 as first skin・ Easy detachable skin 41 as second skin 41 Member 50m ····················································································································· It is the explanation of the reference numerals of the embodiment of the means>
C1, C2: Seat for seat as a skin, skin F1, F2 for seat back Seat frame as a frame, back frame g1 to g3, g1 'to g3' ... Retraction groove The first through third recessed grooves h1 through h3, h1 ', h2', through holes J1 through J3, J1 'through J3', and the first through third connecting members P1, P2 as connecting members. · Seat pad as a pad, back pad P1h, P2h · · · Recessed hole S · · · · Automotive seats 11 and 11 'as vehicle seats · · · As plate-like members (pressure receiving members) Pan frame 13 Wave springs 14, 14 ', 24 as pressure-receiving members Pressure-receiving plates 11b, 24b as plate-shaped members (pressure-receiving members) Substrate portion 11bb Depressed portions Or a reinforcing bead 1 as a raised portion s, the side plate portion 28 ....... wire as 24s · · inclined portion
　＜前記第１の課題の解決手段の実施形態＞
　本発明の実施形態を添付図面に基づいて以下に説明する。尚、本明細書において、前後・左右・上下は、シートに座る乗員から見ての前後・左右・上下をそれぞれいう。 <Embodiment of Means for Solving the First Problem>
An embodiment of the present invention will be described below with reference to the accompanying drawings. In addition, in this specification, front-back, left-right, and up-and-down mean front-back, left-right, and up-and-down, respectively, as seen from the occupant sitting in the seat.
　先ず、図１～図８を参照して、第１実施形態について説明する。乗物用シートとしての自動車用シートＳは、乗員の尻部を下方から支持するシート座部Ｓ１と、乗員の背中を後方から支持するシートバック部Ｓ２と、シートバック部Ｓ２の上部に装着されるヘッドレスト部Ｓ３とを備える。 First, a first embodiment will be described with reference to FIGS. The vehicle seat S as a vehicle seat is mounted on an upper portion of the seat back portion S1 that supports the occupant's buttocks from below, a seat back portion S2 that supports the occupant's back from behind, and a seat back portion S2. And a headrest section S3.
　尚、図示例では、運転席用シートが示されるが、助手席用シートも、後述するエアバッグモジュールＡＭの配設部位が左右逆になる点を除いて運転席用シートと基本的に同一である。 In the illustrated example, the driver's seat is shown, but the passenger seat is also basically the same as the driver's seat except that the location of the airbag module AM described later is reversed left and right. is there.
　シート座部Ｓ１は、座部パッドＰ１と、座部パッドＰ１を裏面側から支持する座部フレームＦ１と、座部パッドＰ１の表面を被覆する座部用表皮Ｃ１とを備える。座部フレームＦ１は車体フロア３０に、従来周知の前後位置調整機構（図示せず）を介して前後位置調節可能に支持される。 The seat seat S1 includes a seat pad P1, a seat frame F1 that supports the seat pad P1 from the back side, and a seat skin C1 that covers the surface of the seat pad P1. The seat frame F1 is supported on the vehicle body floor 30 so as to be adjustable in the front-rear position via a conventionally-known front-rear position adjustment mechanism (not shown).
　一方、シートバック部Ｓ２は、バックパッドＰ２と、バックパッドＰ２を裏面側から支持するバックフレームＦ２と、バックパッドＰ２の表面を被覆するシートバック用表皮Ｃ２とを備える。バックフレームＦ２は、従来周知のリクライニング機構３２を介して座部フレームＦ１の後部に支持されており、そのリクライニング機構３２により、シートバック部Ｓ２は、起立角度を任意に調節、固定できるようになっている。 On the other hand, the seat back portion S2 includes a back pad P2, a back frame F2 that supports the back pad P2 from the back side, and a seat back skin C2 that covers the surface of the back pad P2. The back frame F2 is supported by the rear of the seat frame F1 via a conventionally known reclining mechanism 32, and the reclining mechanism 32 allows the seat back portion S2 to arbitrarily adjust and fix the standing angle. ing.
　次にシートバック部Ｓ２の具体的構造を説明する。 Next, a specific structure of the seat back portion S2 will be described.
　シートバック部Ｓ２の骨格フレームとなるバックフレームＦ２は、図３に示すように、上下方向に延びる左右一対のサイドフレーム２０，２０と、その両サイドフレーム２０，２０の上部間、及び下部間をそれぞれ結合すべく左右方向に延びる上，下部クロスメンバ２１，２２と、両サイドフレーム２０，２０の上端部間を一体に接続するヘッドレスト支持フレーム部２３とを備えた金属製のフレーム枠で構成される。 As shown in FIG. 3, the back frame F2 serving as the skeleton frame of the seat back portion S2 includes a pair of left and right side frames 20, 20 extending in the up-down direction, and the upper and lower portions of both side frames 20, 20. It is composed of a metal frame having upper and lower cross members 21 and 22 extending in the left-right direction to be connected to each other, and a headrest support frame 23 for integrally connecting upper ends of both side frames 20 and 20. You.
　左右のサイドフレーム２０の各フレーム上部２０ａとヘッドレスト支持フレーム２３とは、逆ｕ字状に形成される一繋がりのパイプ材で構成される。そして、各サイドフレーム２０は、上記パイプ材の一部よりなるフレーム上部２０ａと、フレーム上部２０ａが上端部に結合（例えば溶接）されて上下方向に延びる板状のフレーム主部２０ｂとを備える。フレーム主部２０ｂは、シート中心側が開放した横断面コ字状のチャンネル材で構成され、このチャンネル材は、これの座部フレームＦ１との結合部（即ち下端部）に近づくにつれて前後幅が徐々に拡大して剛性強度が増すように形成される。 フ レ ー ム Each frame upper part 20a of the left and right side frames 20 and the headrest support frame 23 are formed of a continuous pipe material formed in an inverted u-shape. Each of the side frames 20 includes a frame upper portion 20a formed of a part of the pipe material, and a plate-shaped frame main portion 20b in which the frame upper portion 20a is joined (for example, welded) to an upper end portion and extends vertically. The frame main portion 20b is formed of a channel material having a U-shaped cross section with an open center side of the seat, and the channel material gradually increases in front-rear width as approaching a joint portion (i.e., a lower end portion) with the seat frame F1. It is formed so as to increase the rigidity strength.
　またフレーム主部２０ｂの幅方向中間部には、厚さ方向即ち左右方向で一方側（実施形態ではシート内方側）に凹んで上下方向に延びる凹曲部２０ｂａが一体成形されており、この凹曲部２０ｂａが補強リブ効果を発揮することでフレーム主部２０ｂ（従ってサイドフレーム２０）の剛性強度が高められる。 Further, a concave portion 20ba which is recessed on one side (in the embodiment, the seat inner side) in the thickness direction, that is, in the left-right direction and extends in the up-down direction is integrally formed at the middle portion in the width direction of the frame main portion 20b. The rigidity of the frame main portion 20b (therefore, the side frame 20) is enhanced by the concave curved portion 20ba exerting the reinforcing rib effect.
　各々のサイドフレーム２０（具体的にはフレーム主部２０ｂの凹曲部２０ｂａやフレーム上部２０ａ）の内側面には、山部と谷部が交互に並ぶ波形の棒材より成る支持部材４１の複数の外向き張出部４１ｏが結合（例えば溶接）される。この支持部材４１は、後述するシートバック用表皮Ｃ２の引込み用連結部材Ｊ１，Ｊ２を係止、連結するために用いられる。尚、支持部材４１の形状構造は、実施形態に限定されず、例えば帯板材を波形に屈曲成形したものを使用してもよい。 On the inner surface of each side frame 20 (specifically, the concave portion 20ba of the frame main portion 20b and the upper portion 20a of the frame), a plurality of support members 41 made of a corrugated bar in which peaks and valleys are alternately arranged. The outwardly extending portions 41o are joined (for example, welded). The support member 41 is used to lock and connect the connecting members J1 and J2 for retracting the seat back skin C2 described later. The shape and structure of the support member 41 are not limited to the embodiment, and for example, a shape obtained by bending a strip material into a wave shape may be used.
　バックフレームＦ２の上、下部クロスメンバ２１，２２には、両クロスメンバ２１，２２間に掛け渡した左右一対のワイヤ２８，２８を介して、合成樹脂製又は金属製の受圧板２４が架設、支持される。更にこの受圧板２４の下部寄りの背面を支持する少なくとも１本の波形スプリング２９が、左右のサイドフレーム２０，２０間に横架、支持される。そして、これら受圧板２４、波形スプリング２９及びワイヤ２８は、互いに協働してバックパッドＰ２を裏面側から支持する。 A pressure-receiving plate 24 made of synthetic resin or metal is installed on the lower cross members 21 and 22 above and below the back frame F2 via a pair of left and right wires 28 and 28 laid between the cross members 21 and 22. Supported. Further, at least one wave spring 29 that supports the lower rear surface of the pressure receiving plate 24 is suspended and supported between the left and right side frames 20, 20. The pressure receiving plate 24, the wave spring 29, and the wire 28 cooperate with each other to support the back pad P2 from the back side.
　次にバックパッドＰ２の構造を説明する。バックパッドＰ２は、バックパッドＰ２の主要部をなす主バックパッドＰ２Ｍと、後述するエアバッグモジュールＡＭの外側を覆う扁平なカバーパッドＰ２Ｃとを備えており、それらパッドＰ２Ｍ，Ｐ２Ｃは、クッション材（例えばウレタンフォーム）で所定形状に各々成形される。 Next, the structure of the back pad P2 will be described. The back pad P2 includes a main back pad P2M that is a main part of the back pad P2, and a flat cover pad P2C that covers the outside of an airbag module AM described later. The pads P2M and P2C are made of a cushion material ( Each of them is formed into a predetermined shape by using, for example, urethane foam.
　主バックパッドＰ２Ｍは、図２に示すように、前面が乗員の背中に対する支持面となるパッド本体Ｐ２ｍと、パッド本体Ｐ２ｍの左右両側に連なり且つ前方に張出して背中の外側方を支持する左、右隆起パッド部Ｐ２ｓとを備えており、左、右の各隆起パッド部Ｐ２ｓの裏面側がサイドフレーム２０で支持（図４，図５参照）される。そして、左、右の各隆起パッド部Ｐ２ｓは、サイドフレーム２０の前、後端面及び外側面を被覆する。 As shown in FIG. 2, the main back pad P2M includes a pad body P2m having a front surface serving as a support surface for the back of the occupant, a left side connected to the left and right sides of the pad body P2m, and extending forward to support the outside of the back; The right and left raised pad portions P2s are provided, and the rear surfaces of the left and right raised pad portions P2s are supported by the side frame 20 (see FIGS. 4 and 5). Each of the left and right raised pad portions P2s covers the front, rear end, and outer surfaces of the side frame 20.
　また左、右の隆起パッド部Ｐ２ｓのうち特に車両外側の（例えば実施形態のシートＳは運転席用である関係で右側の）隆起パッド部Ｐ２ｓには、図５，図７に示すようにモジュール用開口Ｏが形成されている。このモジュール用開口ＯにはエアバッグモジュールＡＭが収納され、エアバッグモジュールＡＭは、開口Ｏに臨むサイドフレーム２０のフレーム主部２０ｂの外側面に固定される。 As shown in FIG. 5 and FIG. 7, the left and right raised pad portions P2s particularly include a raised pad portion P2s on the outside of the vehicle (for example, on the right side because the seat S in the embodiment is for a driver's seat). Opening O is formed. The airbag module AM is housed in the module opening O, and the airbag module AM is fixed to the outer surface of the frame main portion 20b of the side frame 20 facing the opening O.
　エアバッグモジュールＡＭは、図５，図７からも明らかなように、フレーム主部２０ｂの外側面に沿って延びる、車幅方向に扁平な箱状のモジュールケース５０と、モジュールケース５０内に格納、固定されるインフレータ５１と、インフレータ５１からの高圧ガスで急速に膨張可能なエアバッグ５２と、平時はエアバッグ５２を折り畳み状態に保持する保持袋５３とを備える。インフレータ５１は、車両衝突時の衝撃を検知可能な衝突センサ（図示せず）の検知信号に基づいて作動してエアバッグ５２内に高圧ガスを供給可能である。また保持袋５３は、エアバッグ５２の膨張により即座に破断可能である。 As is clear from FIGS. 5 and 7, the airbag module AM extends along the outer surface of the frame main portion 20b and has a flat box-shaped module case 50 in the vehicle width direction, and is housed in the module case 50. The inflator 51 includes a fixed inflator 51, an airbag 52 that can be rapidly inflated by high-pressure gas from the inflator 51, and a holding bag 53 that holds the airbag 52 in a folded state in normal times. The inflator 51 operates based on a detection signal of a collision sensor (not shown) capable of detecting an impact at the time of a vehicle collision, and can supply high-pressure gas into the airbag 52. The holding bag 53 can be immediately broken by the inflation of the airbag 52.
　モジュールケース５０は、車両外方側に開口する扁平皿状のケース本体５０ｍと、ケース本体５０ｍの外端開口を開閉する蓋板５０ｃとを備えており、ケース本体５０ｍの底壁部がフレーム主部２０ｂに複数組のボルトｂ・ナットｎで固定される。 The module case 50 includes a flat dish-shaped case body 50m that opens to the outside of the vehicle, and a lid plate 50c that opens and closes an outer end opening of the case body 50m. It is fixed to the portion 20b with a plurality of sets of bolts b and nuts n.
　蓋板５０ｃは、これの後縁部がケース本体５０ｍの開口後端縁に揺動可能に枢支連結５０ｈされる。また蓋板５０ｃは、これがケース本体５０ｍの開口を閉じた状態で、前縁部がケース本体５０ｍの開口前端縁に係脱可能に係止される。その係止部５０ｋは、エアバッグ５２の膨張により容易に係止解除されて蓋板５０ｃを開放可能とする程度の係止構造とされる。 The rear edge of the lid plate 50c is pivotally connected 50h to the rear edge of the opening of the case body 50m in a swingable manner. The front edge of the cover plate 50c is detachably engaged with the front edge of the opening of the case body 50m in a state where the cover plate 50c closes the opening of the case body 50m. The locking portion 50k has such a locking structure that it can be easily unlocked by the inflation of the airbag 52 and the cover plate 50c can be opened.
　ところで主バックパッドＰ２Ｍの前面には、図２に示すようにパッド本体Ｐ２ｍと左、右隆起パッド部Ｐ２ｓとの各境界部でそれぞれ上下方向に延びる第１，第２引込み溝ｇ１，ｇ２と、第１，第２引込み溝ｇ１，ｇ２の中間部相互を連通させるよう左右方向に延びる第３引込み溝ｇ３とが凹設される。更に主バックパッドＰ２Ｍには、図４～図６に示すように各引込み溝ｇ１～ｇ３の底面に一端が開口し且つ主バックパッドＰ２Ｍの背面即ち裏面に他端が開口する複数の引込み孔Ｐ２ｈ…が、各々の引込み溝ｇ１～ｇ３の長手方向に互いに間隔をおいて形成される。 Meanwhile, on the front surface of the main back pad P2M, as shown in FIG. 2, first and second recessed grooves g1 and g2 extending in the vertical direction at respective boundaries between the pad body P2m and the left and right raised pad portions P2s, respectively. A third recess groove g3 extending in the left-right direction is recessed so that the intermediate portions of the first and second recess grooves g1 and g2 communicate with each other. Further, as shown in FIGS. 4 to 6, the main back pad P2M has a plurality of drawing holes P2h each having an opening at one end on the bottom surface of each of the drawing grooves g1 to g3, and having the other end opening at the back surface of the main back pad P2M. Are formed at intervals in the longitudinal direction of each of the recessed grooves g1 to g3.
　またシートバック用表皮Ｃ２は、バックパッドＰ２に固定されてバックパッドＰ２の外表面を覆うベース表皮２５と、ベース表皮２５の前面を覆う着脱容易表皮２６とを備える。着脱容易表皮２６は、後述するように各引込み溝ｇ１～ｇ３内において第１～第３ファスナｆ１～ｆ３を介してベース表皮２５に着脱可能に接続され、更に着脱容易表皮２６の外周縁部が第４ファスナｆ４を介してベース表皮２５に着脱可能に接続される。 The seat back skin C2 includes a base skin 25 fixed to the back pad P2 and covering the outer surface of the back pad P2, and an easily removable skin 26 covering the front surface of the base skin 25. The easily attachable / detachable skin 26 is detachably connected to the base skin 25 via first to third fasteners f1 to f3 in the respective recessed grooves g1 to g3 as described later. It is detachably connected to the base skin 25 via the fourth fastener f4.
　ベース表皮２５は、バックパッドＰ２の形状に対応して、パッド本体Ｐ２ｍを覆う中央ベース表皮部２５ｍと、左、右隆起パッド部Ｐ２ｓの前面及び側面前部を覆う左、右ベース表皮部２５ｓと、バックパッドＰ２の外周面を全周に亘り覆う外周ベース表皮部２５ｚとを備えると共に、それらベース表皮部２５ｍ，２５ｓ，２５ｚが相互間で縫着されていて、全体が一体となってバックパッドＰ２を覆っている。そして、ベース表皮２５のうち外周ベース表皮部２５ｚだけが、着脱容易表皮２６と重なり合わない領域に在って、外部に常時露出する。 The base skin 25 corresponds to the shape of the back pad P2, and includes a central base skin 25m covering the pad body P2m, and a left and right base skin 25s covering the front and side front portions of the left and right raised pad portions P2s. And an outer peripheral base skin portion 25z that covers the entire outer peripheral surface of the back pad P2, and the base skin portions 25m, 25s, and 25z are sewn to each other, and the back pad is integrally formed as a whole. It covers P2. Then, only the outer peripheral base skin portion 25z of the base skin 25 is in an area that does not overlap with the easily removable skin 26 and is always exposed to the outside.
　外周ベース表皮部２５ｚ後半の特に左右両側部は、図４，図５に示すように左右の隆起パッド部Ｐ２ｓ及びサイドフレーム２０にそれらの各後端面に回り込むように固定（例えば接着）され、また外周ベース表皮部２５ｚ後半の特に上下両側部は、パッド本体Ｐ２ｍの上，下端部にそれらの各後端面に回り込むように固定（例えば接着）される。 In particular, the right and left sides of the rear half of the outer peripheral base skin portion 25z are fixed (for example, adhered) to the left and right raised pad portions P2s and the side frame 20 so as to go around the respective rear end surfaces, as shown in FIGS. Particularly, the upper and lower sides of the rear half of the outer peripheral base skin portion 25z are fixed (for example, adhered) to the upper and lower ends of the pad body P2m so as to go around their respective rear end surfaces.
　尚、シートバック部Ｓ２の背面のうち、外周ベース表皮部１５ｚでは被覆困難な部位は、図示しないカバー部材をシートバック部Ｓ２背面に装着することで体裁よく被覆可能である。 部位 A portion of the back surface of the seat back portion S2 that is difficult to cover with the outer peripheral base skin portion 15z can be covered in a good shape by attaching a cover member (not shown) to the back surface of the seat back portion S2.
　また外周ベース表皮部２５ｚの、エアバッグモジュールＡＭとの対向面には、図５，図７に示すようにモジュールケース５０（特に蓋板５０ｃ）の外面に対面する扁平なカバーパッドＰ２Ｃが固定（例えば接着）される。 In addition, a flat cover pad P2C facing the outer surface of the module case 50 (particularly, the cover plate 50c) is fixed to the surface of the outer peripheral base skin portion 25z facing the airbag module AM as shown in FIGS. For example, bonding).
　次にベース表皮２５のバックパッドＰ２への引込み固定構造について、図３～図６を参照して説明する。ベース表皮２５の中央ベース表皮部２５ｍと左、右ベース表皮部２５ｓとの各縫着部は、第１，第２引込み溝ｇ１，ｇ２にそれぞれ対応した位置に設定されていて、対応する引込み溝ｇ１，ｇ２内に引き込まれ、その引込み部分は、バックパッドＰ２を貫通する各複数の第１，第２連結部材Ｊ１…，Ｊ２…と、前述の支持部材４１とを介してサイドフレーム２０（具体的にはフレーム主部２０ｂの凹曲部２０ｂａ）の内側面に連結、支持される。一方、中央ベース表皮部２５ｍの上下中間部は、第３引込み溝ｇ３内に引き込まれ、その引込み部分は、バックパッドＰ２を貫通する複数の連結部材Ｊ３…を介して受圧板２４に係止、連結される。 Next, a structure for fixing the base skin 25 to the back pad P2 will be described with reference to FIGS. The sewn portions of the central base skin portion 25m and the left and right base skin portions 25s of the base skin 25 are set at positions corresponding to the first and second recess grooves g1 and g2, respectively, and the corresponding recess grooves are provided. g1, g2, and the drawn-in portion is connected to the side frame 20 (specifically, via the plurality of first and second connecting members J1..., J2. Specifically, it is connected to and supported by the inner surface of the concave portion 20ba) of the frame main portion 20b. On the other hand, the upper and lower middle portions of the central base skin portion 25m are drawn into the third drawing groove g3, and the drawn portion is locked to the pressure receiving plate 24 via a plurality of connecting members J3 ... penetrating the back pad P2. Be linked.
　より具体的に説明すると、中央ベース表皮部２５ｍと左、右ベース表皮部２５ｓとの各縫着部には、前後方向に延びる各複数の第１，第２連結部材Ｊ１…，Ｊ２…の前端部が固定（例えば縫着）され、それら連結部材Ｊ１…，Ｊ２…は、第１，第２引込み溝ｇ１，ｇ２に各々間隔をおいて開口する複数の引込み孔Ｐ２ｈ…をそれぞれ貫通してバックパッドＰ２の後面に達する。また中央ベース表皮部２５ｍの上下中間部には、前後方向に延びる複数の第３連結部材Ｊ３…の前端部が固定（例えば縫着）され、それら連結部材Ｊ３…は、第３引込み溝ｇ３に間隔をおいて開口する複数の引込み孔Ｐ２ｈ…をそれぞれ貫通してバックパッドＰ２の後面に達する。 More specifically, the front end of each of the plurality of first and second connecting members J1,..., J2... Extending in the front-rear direction is provided on each of the sewn portions of the central base skin portion 25m and the left and right base skin portions 25s. Are fixed (for example, sewn), and the connecting members J1... J2... Respectively pass through the plurality of drawing holes P2h. The pad reaches the rear surface of the pad P2. The front ends of a plurality of third connecting members J3 extending in the front-rear direction are fixed (for example, sewn) to the upper and lower intermediate portions of the central base skin portion 25m, and these connecting members J3 are attached to the third recess grooves g3. Each of the plurality of lead-in holes P2h, which are opened at intervals, reaches the rear surface of the back pad P2.
　第１～第３連結部材Ｊ１～Ｊ３は、帯板状に形成されて前後方向に延びる部材本体Ｊａと、部材本体Ｊａの後端部に結合、固定される係止片Ｊｋとを各々備える。係止片Ｊｋは、本実施形態ではＪ字状のフック体で構成され、そのうち特に第１，第２連結部材Ｊ１，Ｊ２の係止片Ｊｋは、図４，図５に示すようにサイドフレーム２０に固定した支持部材４１の内向き張出部４１ｉに係止、連結される。一方、第３連結部材Ｊ３の係止片Ｊｋは、図６に示すように第３引込み溝ｇ３に開口する引込み孔Ｐ２ｈの対向部又はその近傍部に位置する受圧板２４の貫通孔ｈ１に係止、連結される。 The first to third connecting members J1 to J3 each include a member main body Ja formed in a strip shape and extending in the front-rear direction, and a locking piece Jk coupled and fixed to the rear end of the member main body Ja. In the present embodiment, the locking piece Jk is formed of a J-shaped hook body, and among them, the locking pieces Jk of the first and second connecting members J1 and J2 are, as shown in FIGS. It is locked and connected to the inwardly protruding portion 41i of the support member 41 fixed to 20. On the other hand, the locking piece Jk of the third connecting member J3 is engaged with the through hole h1 of the pressure receiving plate 24 located at a portion facing the drawing hole P2h opening in the third drawing groove g3 or in the vicinity thereof as shown in FIG. Stopped and connected.
　尚、一部の引込み孔Ｐ２ｈがワイヤ２８又は波形スプリング２９の対向部又はその近傍部に位置する場合には、この引込み孔Ｐ２ｈを貫通する第１～第３連結部材Ｊ１～Ｊ３の係止片Ｊｋをワイヤ２８又は波形スプリング２９に係止、連結させてもよい。 When a part of the recessed hole P2h is located at or near the wire 28 or the wave spring 29, the locking pieces of the first to third connecting members J1 to J3 penetrating the recessed hole P2h. Jk may be locked and connected to the wire 28 or the wave spring 29.
　尚また、第１～第３連結部材Ｊ１～Ｊ３の係止片Ｊｋとしては、上記したフック体に限定されず、即ち支持部材４１やワイヤ２８，スプリング２９、受圧板２４の貫通孔ｈ１等に係止、連結可能な種々の形状に形成可能である。例えば、弾性変形可能な鉤部を先部に有するクリップ体（図示せず）で係止片Ｊｋを構成してもよい。 Further, the locking pieces Jk of the first to third connecting members J1 to J3 are not limited to the above-mentioned hook members, that is, the supporting members 41, the wires 28, the springs 29, the through holes h1 of the pressure receiving plate 24, and the like. It can be formed into various shapes that can be locked and connected. For example, the locking piece Jk may be constituted by a clip body (not shown) having a hook portion that can be elastically deformed at its tip.
　次に、着脱容易表皮２６について具体的に説明する。着脱容易表皮２６は、図２に示すようにベース表皮２５の中央ベース表皮部２５ｍを覆う中央着脱容易表皮部２６ｍと、左、右ベース表皮部２５ｓをそれぞれ覆う左、右着脱容易表皮部２６ｓとを備えると共に、それら着脱容易表皮部の相互間が縫着されていて、全体が一体となってベース表皮２５の前面及び左右側面前部（即ち外周ベース表皮部２５ｚを除く領域）を覆っている。 Next, the easily removable skin 26 will be specifically described. As shown in FIG. 2, the easily removable skin 26 includes a central easily removable skin 26m that covers the central base skin 25m of the base skin 25, and a left and right easily removable skin 26s that respectively cover the left and right base skins 25s. And the easily removable skin portions are sewn together to cover the front surface and the left and right side front portions of the base skin 25 (that is, the region excluding the outer peripheral base skin portion 25z) as a whole. .
　この着脱容易表皮２６と、ベース表皮２５との接続構造について、次に図４，図５を参照して説明する。 Next, the connection structure between the easily removable skin 26 and the base skin 25 will be described with reference to FIGS.
　即ち、第１，第２引込み溝ｇ１，ｇ２にそれぞれ引き込まれる、中央ベース表皮部２５ｍと左、右ベース表皮部２５ｓとの各縫着部には、第１，第２ファスナｆ１，ｆ２の内側ファスナ片ｆ１ｉ，ｆ２ｉがそれぞれ固定（例えば縫着）される。また、同じく第１，第２引込み溝ｇ１，ｇ２にそれぞれ引き込まれる、中央着脱容易表皮部２６ｍと左、右着脱容易表皮部２６ｓとの各縫着部には、第１，第２ファスナｆ１，ｆ２の外側ファスナ片ｆ１ｏ，ｆ２ｏがそれぞれ固定（例えば縫着）される。 That is, the sewn portions of the central base skin portion 25m and the left and right base skin portions 25s, which are respectively drawn into the first and second drawing grooves g1 and g2, have the insides of the first and second fasteners f1 and f2. The fastener pieces f1i and f2i are fixed (for example, sewn). Similarly, the first and second fasteners f1 and f2 are respectively attached to the sewn portions of the central easy detachable skin portion 26m and the left and right easy detachable skin portions 26s which are respectively drawn into the first and second recess grooves g1 and g2. The outer fastener pieces f1o and f2o of f2 are fixed (for example, sewn).
　一方、第３引込み溝ｇ３に引き込まれる、中央ベース表皮部２５ｍの前後中間部には、第３ファスナｆ３の内側ファスナ片ｆ３ｉが固定（例えば縫着）される。また第３引込み溝ｇ３に引き込まれる、中央着脱容易表皮部２６ｍの前後中間部には、第３ファスナｆ３の外側ファスナ片ｆ３ｏが固定（例えば縫着）される。 On the other hand, the inside fastener piece f3i of the third fastener f3 is fixed (for example, sewn) to the front and rear middle portion of the central base skin portion 25m that is drawn into the third drawing groove g3. Further, an outer fastener piece f3o of the third fastener f3 is fixed (for example, sewn) to a front and rear middle portion of the central detachable skin portion 26m which is drawn into the third recess groove g3.
　そして、第１～第３ファスナｆ１～ｆ３は、それらの外側ファスナ片ｆ１ｏ～ｆ３ｏ及び内側ファスナ片ｆ１ｉ～ｆ３ｉの相互間が、第１～第３引込み溝ｇ１～ｇ３内でそれぞれスライダｆ１ｓ～ｆ３ｓのスライド操作により任意に着脱可能に接続される。 The first to third fasteners f1 to f3 are arranged such that the outer fastener pieces f1o to f3o and the inner fastener pieces f1i to f3i are positioned in the first to third recessed grooves g1 to g3. It is arbitrarily detachably connected by the slide operation.
　更に中央ベース表皮部２５ｍの上縁部及び左、右ベース表皮部２５ｓの外側縁部と、外周ベース表皮部２５ｚの前縁部との間の縫着部には、第４ファスナｆ４の内側ファスナ片ｆ４ｉが固定（例えば縫着）される。また着脱容易表皮２６の上縁部及び左右外縁部には、第４ファスナｆ４の外側ファスナ片ｆ４ｏが固定（例えば縫着）される。そして、第４ファスナｆ４は、それの外側ファスナ片ｆ４ｏ及び内側ファスナ片ｆ４ｉの相互間が、バックパッドＰ２の外周面（即ち上面及び左右側面）においてスライダｆ４ｓのスライド操作により任意に着脱可能に接続される。 Further, the inner fastener of the fourth fastener f4 is provided on the sewn portion between the upper edge portion of the central base skin portion 25m and the outer edge portions of the left and right base skin portions 25s and the front edge portion of the outer peripheral base skin portion 25z. The piece f4i is fixed (for example, sewn). An outer fastener piece f4o of the fourth fastener f4 is fixed (for example, sewn) to the upper edge portion and the left and right outer edge portions of the easily removable skin 26. The fourth fastener f4 is detachably connected between the outer fastener piece f4o and the inner fastener piece f4i on the outer peripheral surface (that is, the upper surface and the left and right side surfaces) of the back pad P2 by sliding the slider f4s. Is done.
　尚、上記したスライダｆ１ｓ～ｆ４ｓの用途機能は、従来周知の線ファスナのスライダのそれと同様である。 The application functions of the above-mentioned sliders f1s to f4s are the same as those of the conventionally known linear fastener slider.
　ところで、前記したエアバッグ５２は、これの膨張初期に、その膨張変化に応じて係止部５０ｋの係止を自動解除し且つ蓋板５０ｃを後端の枢支連結５０ｈ部回りに外方揺動させる。これにより、蓋板５０ｃとケース本体５０ｍの開口端との間に生じた隙間（図８（Ｅ）を参照）からエアバッグ５２が車両前方外向きに膨張、展開できるようになっている。そして、上記隙間、乃至その隙間の外側に隣接していて右隆起パッド部Ｐ２ｓとカバーパッドＰ２Ｃとに挟まれた部位が、バックパッドＰ２の表面からのエアバッグ５２の展開開始部位Ｐ２ｘに相当する。 By the way, the above-mentioned airbag 52 automatically releases the locking of the locking portion 50k according to the inflation change at the initial stage of the inflation and swings the cover plate 50c outward around the rear pivot connection 50h. Move. This allows the airbag 52 to inflate and deploy outward from the gap between the cover plate 50c and the opening end of the case body 50m (see FIG. 8E). The gap or a portion adjacent to the outside of the gap and sandwiched between the right protruding pad portion P2s and the cover pad P2C corresponds to a deployment start portion P2x of the airbag 52 from the surface of the back pad P2. .
　上記したエアバッグ５２の設置に関連して、外周ベース表皮部２５ｚには、展開初期のエアバッグ５２により破断可能な破断許容部ｍ１が設けられる。この破断許容部ｍ１は、これが展開初期のエアバッグ５２で容易に且つ効率よく破断できるように、本実施形態では前記したエアバッグ展開開始部位Ｐ２ｘとの対応位置（即ち、その展開開始部位Ｐ２ｘとの対向位置又は近傍位置）に配設される。 関 連 In connection with the installation of the airbag 52 described above, the outer peripheral base skin portion 25z is provided with a break allowance portion m1 that can be broken by the airbag 52 in the initial stage of deployment. In the present embodiment, the break allowance portion m1 is located at a position corresponding to the airbag deployment start portion P2x (that is, the deployment start portion P2x and the airbag deployment portion P2x) so that it can be easily and efficiently broken by the airbag 52 in the initial stage of deployment. At a position facing or near).
　本実施形態の破断許容部ｍ１は、外周ベース表皮部２５ｚに穿設されてミシン目状に並ぶ一連の小孔群で構成される。そして、この破断許容部ｍ１は、モジュールケース５０の蓋板５０ｃ（従って前述のカバーパッドＰ２Ｃ）を多少広めに囲むように、その蓋板５０ｃの前縁・上縁・下縁に略沿ってコ字状に配列される。しかも破断許容部ｍ１（従って展開開始部位Ｐ２ｘ）は、第１～第４ファスナｆ１～ｆ４のうちエアバッグモジュールＡＭの周辺に位置する第４ファスナｆ４から離間して（即ち前後方向に間隔をおいて）配置されている。 破 断 The breakable portion m1 of the present embodiment is constituted by a series of small holes that are perforated in the outer peripheral base skin portion 25z and arranged in a perforated shape. The breakable portion m1 extends along the front edge, upper edge, and lower edge of the cover plate 50c so that the cover plate 50c of the module case 50 (accordingly, the cover pad P2C described above) is slightly wider. It is arranged in a letter shape. In addition, the break allowance part m1 (the deployment start part P2x) is separated from the fourth fastener f4 located around the airbag module AM among the first to fourth fasteners f1 to f4 (that is, is spaced apart in the front-rear direction). And).
　尚、破断許容部ｍ１は、外周ベース表皮部２５ｚにおいて通常使用に耐え得るカバー強度は確保しつつ展開初期のエアバッグ５２により破断可能な脆弱構造であればよく、実施形態に限定されることなく種々の脆弱構造を採用可能である。例えば、上記のようなミシン目状の小孔群に代えて、外周ベース表皮部２５ｚの当該部位を他の部位よりも破れ易い薄手に構成したり、或いは、当該部位に、そこを二分する切込みを入れ且つその切込み部分の両側相互間を低強度に（即ち破れ易いように）縫い合せる構成としてもよい。 Note that the breakable portion m1 may be a fragile structure that can be broken by the airbag 52 in the initial stage of deployment while securing a cover strength that can withstand normal use in the outer peripheral base skin portion 25z, and is not limited to the embodiment. Various fragile structures can be employed. For example, instead of the group of perforated small holes as described above, the relevant portion of the outer peripheral base skin portion 25z may be configured to be thinner than other portions, or may be cut into the relevant portion. May be formed and a low-strength (ie, easily torn) stitch is applied between both sides of the cut portion.
　而して、バックパッドＰ２は本発明のパッドの一例であり、またバックフレームＦ２は本発明のフレームの一例である。また第１～第４ファスナｆ１～ｆ４は本発明の接続具の一例であり、そのうち特に第４ファスナｆ４は、本発明の接続具のうちエアバッグモジュールＡＭの周辺に位置する特定の接続具の一例である。 Thus, the back pad P2 is an example of the pad of the present invention, and the back frame F2 is an example of the frame of the present invention. The first to fourth fasteners f1 to f4 are examples of the connector of the present invention. Among them, the fourth fastener f4 is a connector of the present invention which is a specific connector located around the airbag module AM. This is an example.
　更にベース表皮２５は本発明の第１表皮の一例であり、また着脱容易表皮２６は本発明の第２表皮の一例である。 The base skin 25 is an example of the first skin of the present invention, and the easily removable skin 26 is an example of the second skin of the present invention.
　尚、シート座部Ｓ１の座部パッドＰ１も、ベース表皮１５と着脱容易表皮１６とを含む座部用表皮Ｃ１で覆われており、この表皮Ｃ１の座部パッドＰ１への取付構造は、シートバック用表皮Ｃ２のバックパッドＰ２への前記した取付構造と同様である。例えば、座部パッドＰ１の上面には、バックパッドＰ２と同様に表皮引込み用の引込み溝ｇ１′～ｇ３′が設けられ、ベース表皮１５と着脱容易表皮１６とは、シートバック用表皮Ｃ２で用いたファスナｆ１～ｆ４と同様のファスナｆ１′～ｆ４′で着脱可能に接続される。 The seat pad P1 of the seat seat S1 is also covered with a seat skin C1 including a base skin 15 and an easily removable skin 16, and the structure of mounting the skin C1 to the seat pad P1 is as follows. This is the same as the above-described attachment structure of the back skin C2 to the back pad P2. For example, the upper surface of the seat pad P1 is provided with recess grooves g1 'to g3' for retracting the skin similarly to the back pad P2, and the base skin 15 and the easily removable skin 16 are used for the seat back skin C2. Fasteners f1 'to f4' similar to the fasteners f1 to f4 are detachably connected.
　次に第１実施形態の作用を説明する。シートＳの組立に際し、バックフレームＦ２には、シートバック用表皮Ｃ２を組付ける前のバックパッドＰ２が取付けられ、またバックフレームＦ２の一方のサイドフレーム２０の外側面にはエアバッグモジュールＡＭが取付けられる。そして、その状態より、シートバック用表皮Ｃ２のバックパッドＰ２への組付け作業が、次のようにして行われる。 Next, the operation of the first embodiment will be described. When assembling the seat S, the back pad F2 before the seat back skin C2 is attached to the back frame F2, and the airbag module AM is attached to the outer surface of one side frame 20 of the back frame F2. Can be Then, from that state, the assembling work of the seat back skin C2 to the back pad P2 is performed as follows.
　シートバック用表皮Ｃ２のベース表皮２５については、これの外周ベース表皮部２５ｚ、中央ベース表皮部２５ｍ及び左、右ベース表皮部２５ｓの相互間を縫着すると共に、所定部位に第１～第３連結部材Ｊ１～Ｊ３及び第１～第４ファスナｆ１～ｆ４の内側ファスナ片ｆ１ｉ～ｆ４ｉを縫着してなるベース表皮ユニットを予め製作しておき、そのベース表皮ユニットをバックパッドＰ２の前面に被せるように置く。 The base skin 25 of the seat back skin C2 is sewn between the outer peripheral base skin portion 25z, the center base skin portion 25m, and the left and right base skin portions 25s, and the first to third portions are provided at predetermined portions. A base skin unit is formed in advance by sewing the connecting members J1 to J3 and the inner fastener pieces f1i to f4i of the first to fourth fasteners f1 to f4, and the base skin unit is put on the front surface of the back pad P2. Put on.
　この状態から、ベース表皮ユニットの一部表皮を、バックパッドＰ２の前面の第１～第３引込み溝ｇ１～ｇ３内に各々引込む。そして、その各引込み部分に連なる第１～第３連結部材Ｊ１～Ｊ３を引込み孔Ｐ１ｈを通してバックパッドＰ２の裏面側まで延出させる。その延出端のうち特に第１，第２連結部材Ｊ１，Ｊ２の係止片Ｊｋはサイドフレーム２０内側面に固定の支持部材４１の内方張出部４１ｉに係止、連結させ、一方、第３連結部材Ｊ３の係止片Ｊｋは、受圧板２４の貫通孔ｈ１に係止、連結させる。 か ら From this state, a part of the skin of the base skin unit is drawn into the first to third drawing grooves g1 to g3 on the front surface of the back pad P2. Then, the first to third connecting members J1 to J3 connected to the respective drawn portions are extended to the back surface side of the back pad P2 through the drawn holes P1h. In particular, the locking pieces Jk of the first and second connecting members J1 and J2 of the extending ends are locked and connected to the inwardly protruding portions 41i of the support member 41 fixed to the inner side surface of the side frame 20. The locking piece Jk of the third connecting member J3 is locked and connected to the through hole h1 of the pressure receiving plate 24.
　しかる後、上記したベース表皮ユニットの外周ベース表皮部２５ｚの左右両側部を、図４，図５に示すように左右の隆起パッド部Ｐ２ｓ及びサイドフレーム２０にそれらの各後端面に回り込むように固定（例えば接着）すると共に、外周ベース表皮部２５ｚの上下両側部をパッド本体Ｐ２ｍの上，下端部にそれらの後端面に回り込むように固定（例えば接着）する。 Thereafter, the left and right sides of the outer peripheral base skin portion 25z of the base skin unit are fixed to the left and right raised pad portions P2s and the side frame 20, as shown in FIGS. At the same time, the upper and lower sides of the outer peripheral base skin portion 25z are fixed (eg, bonded) to the upper and lower ends of the pad body P2m so as to go around the rear end surfaces thereof.
　かくして、ベース表皮２５の各ベース表皮部２５ｍ，２５ｓ，２５ｚを含むベース表皮ユニットが、座部パッドＰ２にこれを被覆するように固定される。この場合、ベース表皮２５の一部が第１～第３引込み溝ｇ１～ｇ３内に引込まれた状態は、第１，第２連結部材Ｊ１，Ｊ２がサイドフレーム２０内側面に固定の支持部材４１に係止、連結され、且つ第３連結部材Ｊ３が受圧板２４の貫通孔ｈ１に係止、連結されることで維持されるため、ベース表皮２５に長期の使用に伴う位置ずれや弛み、皺等が発生するのを効果的に防止可能である。 Thus, the base skin unit including the base skin portions 25m, 25s, and 25z of the base skin 25 is fixed to the seat pad P2 so as to cover it. In this case, a state in which a part of the base skin 25 is drawn into the first to third drawing grooves g1 to g3 is a state in which the first and second connecting members J1 and J2 are fixed to the inner side surface of the side frame 20. And the third connection member J3 is maintained by being locked and connected to the through hole h1 of the pressure receiving plate 24, so that the base skin 25 is displaced, loosened, and wrinkled with long-term use. And the like can be effectively prevented.
　一方、シートバック用表皮Ｃ２の着脱容易表皮２６については、これの中央着脱容易表皮部２６ｍ及び左、右着脱容易表皮部２６ｓの相互間を縫着すると共に、所定部位に第１～第４ファスナｆ１～ｆ４の外側ファスナ片ｆ１ｏ～ｆ４ｏを縫着してなる着脱容易表皮ユニットを予め製作しておく。そして、この着脱容易表皮ユニットを、座部パッドＰ２に先に固定したベース表皮２５上に被せるようにして置き、その際に、第１～第３ファスナｆ１～ｆ３の外側ファスナ片ｆ１ｏ～ｆ３ｏと内側ファスナ片ｆ１ｉ～ｆ３ｉとを順次接続することで、着脱容易表皮２６の一部を第１～第３引込み溝ｇ１～ｇ３に各々引込む。しかる後に第４ファスナｆ４の外側ファスナ片ｆ４と内側ファスナ片ｆ４ｉとを接続すれば、着脱容易表皮２６を、それの一部を第１～第３引込み溝ｇ１～ｇ３内に引込みつつベース表皮２５に接続、固定することができる。尚、この状態から着脱容易表皮２６を取り外す場合は、上記とは逆の手順で行う。 On the other hand, as for the easily removable skin 26 of the seat back skin C2, the center easily removable skin 26m and the left and right easily removable skin 26s are sewn to each other, and the first to fourth fasteners are attached to a predetermined portion. An easily detachable skin unit formed by sewing outer fastener pieces f1o to f4o of f1 to f4 is manufactured in advance. Then, this easily removable skin unit is placed so as to cover the base skin 25 previously fixed to the seat pad P2. At this time, the outer fastener pieces f1o to f3o of the first to third fasteners f1 to f3 are attached. By sequentially connecting the inner fastener pieces f1i to f3i, a part of the easily removable skin 26 is drawn into the first to third drawing grooves g1 to g3, respectively. Thereafter, when the outer fastener piece f4 of the fourth fastener f4 is connected to the inner fastener piece f4i, the easily removable skin 26 is partially pulled into the first to third recessed grooves g1 to g3, and the base skin 25 is pulled. Can be connected and fixed. When the easily removable skin 26 is removed from this state, the procedure is reversed.
　かくして、シートバック用表皮Ｃ２のバックパッドＰ２への取付けが完了する。また座部用表皮Ｃ１のベース表皮１５及び着脱容易表皮１６を座部パッドＰ１に取付ける場合も、上記したシートバック用表皮Ｃ２と同様の取付手順で取付作業を行うことができる。 Thus, the attachment of the seat back skin C2 to the back pad P2 is completed. Also, when the base skin 15 and the easily removable skin 16 of the seat skin C1 are mounted on the seat pad P1, the mounting operation can be performed in the same mounting procedure as the seatback skin C2 described above.
　上記構造のシート座部Ｓ１及びシートバック部Ｓ２においては、座部パッドＰ１及びバックパッドＰ２に各々固定したベース表皮１５，２５に対し、着脱容易表皮１６，２６がファスナｆ１～ｆ４，ｆ１′～ｆ４′により随時、容易に着脱可能となっている。このため、着脱容易表皮１６，２６を、季節に応じて色、模様、風合い等の異なる他の着脱容易表皮１６，２６に交換したり、或いは汚れた着脱容易表皮１６，２６を取り外してクリーニングしたりすることが可能であり、便利である。 In the seat seat portion S1 and the seat back portion S2 having the above-described structure, the easily removable skins 16, 26 are provided with the fasteners f1 to f4, f1 'to the base skins 15, 25 fixed to the seat pad P1 and the back pad P2, respectively. By f4 ', it can be easily detached at any time. For this reason, the easily removable detachable skins 16, 26 are replaced with other easily removable detachable skins 16, 26 having different colors, patterns, textures, or the like according to the season, or the dirty easily removable detachable skins 16, 26 are removed and cleaned. It is possible and convenient.
　ところで走行車両が万一、衝突事故を起こしたような場合に、バックパッドＰ２に内蔵のエアバッグモジュールＡＭにおいては、衝突時の衝撃でインフレータ５１が作動してエアバッグ５２に高圧ガスを供給し、これにより、エアバッグ５２が急速に膨張、展開しようとする。このときエアバッグ５２は、これの展開初期（図８（Ｅ）を参照）にモジュールケース５０の蓋板５０ｃを開放即ち外方揺動させ、その蓋板５０ｃとケース本体５０ｍの開口端との間に生じた隙間からエアバッグ５２が、該隙間に対向、近接した破断許容部２５ｚｘを突き破りつつ、図８（Ｆ）に示すように車両前方外向きに膨張、展開して乗員を保護する。 By the way, in the event that the traveling vehicle has a collision accident, in the airbag module AM incorporated in the back pad P2, the inflator 51 is activated by the impact at the time of the collision to supply high-pressure gas to the airbag 52. This causes the airbag 52 to rapidly inflate and deploy. At this time, the airbag 52 opens the cover plate 50c of the module case 50, that is, swings outward at the initial stage of the deployment (see FIG. 8E), so that the cover plate 50c and the open end of the case body 50m are connected. As shown in FIG. 8F, the airbag 52 inflates and deploys outward from the gap formed between the airbag 52 and the rupture permitting portion 25zx that is opposed to and close to the gap, thereby protecting the occupant.
　この場合、シートバック用表皮Ｃ２のベース表皮２５（具体的には外周ベース表皮部２５ｚ）には、展開初期のエアバッグ５２により破断可能な破断許容部ｍ１が、バックパッドＰ２の表面におけるエアバッグ展開開始部位Ｐ２ｘとの対応位置（即ち展開開始部位Ｐ２ｘとの対向位置又はその近傍位置）に配設され、この破断許容部ｍ１は、エアバッグモジュールＡＭの周辺に位置する特定の接続具としての第４ファスナｆ４から間隔をおいて配置されている。これにより、エアバッグ５２の展開初期において、破断許容部ｍ１を突き破って膨張、展開しようとするエアバッグ５２に対し第４ファスナｆ４が接触、干渉するのを効果的に回避できるため、エアバッグ５２の的確な作動を確保する上で有利となる。 In this case, in the base skin 25 (specifically, the outer peripheral base skin portion 25z) of the seat back skin C2, a breakable part m1 that can be broken by the airbag 52 in the initial stage of deployment is provided with an airbag on the surface of the back pad P2. The breakable portion m1 is provided at a position corresponding to the deployment start site P2x (that is, a position facing the deployment start site P2x or a position near the deployment start site P2x). It is arranged at an interval from the fourth fastener f4. Thus, in the initial stage of deployment of the airbag 52, the fourth fastener f4 can effectively prevent the fourth fastener f4 from contacting and interfering with the airbag 52 that is about to break through and permit inflation and deployment by breaking through the breakable portion m1. This is advantageous in ensuring an accurate operation of.
　また本実施形態では、シートバック用表皮Ｃ２の破断許容部ｍ１が、バックパッドＰ２に固定のベース表皮２５に設けられる。これにより、破断許容部ｍ１がバックパッドＰ２（従ってパッドＰ２表面からのエアバッグ展開開始部位Ｐ２ｘ）に対しずれ動くのを効果的に回避できるため、エアバッグ５２の作動をより安定させることができる。 In the present embodiment, the breakable portion m1 of the seat back skin C2 is provided on the base skin 25 fixed to the back pad P2. Accordingly, the break allowance m1 can be effectively prevented from being shifted with respect to the back pad P2 (therefore, the airbag deployment start site P2x from the surface of the pad P2), so that the operation of the airbag 52 can be further stabilized. .
　また本実施形態のシートバック用表皮Ｃ２では、ベース表皮２５の上に着脱容易表皮２６と重なり合う領域（即ち中央ベース表皮部２５ｍ及び左右ベース表皮部２５ｓに相当する領域）が存在するが、この領域の外（即ち外周ベース表皮部２５ｚ）にベース表皮２５の破断許容部ｍ１が配置されている。これにより、エアバッグ５２の展開動作が着脱容易表皮２６で阻害される虞れはなくなり、エアバッグ５２の的確な作動を確保する上で有利となる。 In the seat back skin C2 of the present embodiment, there is a region on the base skin 25 that overlaps the easily removable skin 26 (that is, a region corresponding to the central base skin portion 25m and the left and right base skin portions 25s). (That is, the outer peripheral base skin portion 25z), the breakable portion m1 of the base skin 25 is arranged. Accordingly, there is no possibility that the deployment operation of the airbag 52 is hindered by the easily removable skin 26, and this is advantageous in ensuring accurate operation of the airbag 52.
　また本実施形態では、シートバック部Ｓ２において、エアバッグモジュールＡＭ周辺に位置する第４ファスナｆ４が、破断許容部ｍ１よりも前方側に配置されている。これにより、エアバッグ５２が破断許容部ｍ１を破断させつつシートバック部Ｓ２の斜め前方外側に展開しても、これと第４ファスナｆ４との接触、干渉を効果的に防止可能である。 Also, in the present embodiment, in the seat back portion S2, the fourth fastener f4 located around the airbag module AM is disposed forward of the break allowance portion m1. Accordingly, even if the airbag 52 is deployed obliquely outward of the seat back portion S2 while breaking the breakable portion m1, the contact and interference between the airbag 52 and the fourth fastener f4 can be effectively prevented.
　また本実施形態のバックパッドＰ２は、ベース表皮２５の一部を引き込むための引込み溝ｇ１～ｇ３と、引込み溝ｇ１～ｇ３の底部に一端が開口すると共にバックパッドＰ２の裏面に他端が開口する複数の引込み孔Ｐ２ｈとを有し、ベース表皮２５の、引込み溝ｇ１～ｇ３内への引込み部分が、引込み孔Ｐ２ｈを貫通する複数の連結部材Ｊ１～Ｊ３の各一端部に結合され、連結部材Ｊ１～Ｊ３の各他端部がサイドフレーム２０のフレーム主部２０ｂ内側面に支持部材４１を介して連結されると共に、その連結部（即ち支持部材４１とフレーム主部２０ｂ内側面との結合部ｗ）を避けるようにしてエアバッグモジュールＡＭがサイドフレーム２０に取付けられる。 Further, the back pad P2 of the present embodiment has recessed grooves g1 to g3 for retracting a part of the base skin 25, one end opened at the bottom of the recessed grooves g1 to g3, and the other end opened on the back surface of the back pad P2. And a plurality of connecting holes J2 to J3, which are connected to one end of the plurality of connecting members J1 to J3 penetrating the inserting holes P2h. The other ends of the members J1 to J3 are connected to the inner surface of the frame main portion 20b of the side frame 20 via the support member 41, and the connection portion (ie, the connection between the support member 41 and the inner surface of the frame main portion 20b). The airbag module AM is attached to the side frame 20 so as to avoid the part w).
　これにより、シート構造の簡素化を図るべく、共通の右サイドフレーム２０（具体的にはフレーム主部２０ｂ）に、表皮引込み用連結部材Ｊ１～Ｊ３を支持部材４１を介して連結し且つエアバッグモジュールＡＭを取付けるようにしても、エアバッグ５２の作動に支障を来たす虞れはない。しかもエアバッグモジュールＡＭの、フレーム主部２０ｂに取付けられる被取付部、即ちケース本体５０ｍは、フレーム主部２０ｂを挟んで上記結合部ｗとは反対側に配置されるため、その結合部ｗ（従って支持部材４１）と、ケース本体５０ｍとがフレーム主部２０ｂを挟んでコンパクトに対向配置可能となる。 Thereby, in order to simplify the seat structure, the connecting members J1 to J3 for skin retraction are connected to the common right side frame 20 (specifically, the frame main portion 20b) via the supporting member 41 and the airbag is provided. Even if the module AM is mounted, there is no possibility that the operation of the airbag 52 is hindered. Moreover, the attached portion of the airbag module AM, which is attached to the frame main portion 20b, that is, the case main body 50m is disposed on the opposite side of the frame main portion 20b from the connecting portion w, so that the connecting portion w ( Accordingly, the support member 41) and the case main body 50m can be compactly opposed to each other with the frame main portion 20b interposed therebetween.
　その上、サイドフレーム２０の、上記結合部ｗ（従って支持部材４１）とケース本体５０ｍとに挟まれた板状の壁部分であるフレーム主部２０ｂは、これの厚さ方向一方側に凹んだ凹曲部２０ｂａを有している。そして、この凹曲部２０ｂａが補強リブ効果を発揮することで、フレーム構造の軽量化を図りながらサイドフレーム２０（フレーム主部２０ｂ）の剛性を高めることができ、延いてはサイドフレーム２０に対する連結部材Ｊ１～Ｊ３及びエアバッグモジュールＡＭの各取付剛性が効果的に高められる。 In addition, the frame main portion 20b of the side frame 20, which is a plate-like wall portion sandwiched between the coupling portion w (accordingly, the support member 41) and the case body 50m, is recessed to one side in the thickness direction. It has a concave portion 20ba. Since the concave curved portion 20ba exerts the reinforcing rib effect, the rigidity of the side frame 20 (the frame main portion 20b) can be increased while reducing the weight of the frame structure. The mounting rigidity of the members J1 to J3 and the airbag module AM is effectively increased.
　また図９には、本発明の第２実施形態が示される。第２実施形態は、基本的に第１実施形態と同じシート構造であるが、更に第１表皮としてのベース表皮２５の、第４ファスナｆ４（特定の接続具）と隣接する部分に、展開時のエアバッグ５２と第４ファスナｆ４との接触を抑制する接触抑制部としての外方張出部６１を、第４ファスナｆ４に沿うように設けた構造を追加したものである。 FIG. 9 shows a second embodiment of the present invention. The second embodiment has basically the same seat structure as that of the first embodiment, but is further provided on a portion of the base skin 25 as the first skin which is adjacent to the fourth fastener f4 (specific connection tool). A structure in which an outwardly extending portion 61 as a contact suppressing portion for suppressing contact between the airbag 52 and the fourth fastener f4 is provided along the fourth fastener f4.
　この外方張出部（接触抑制部）６１は、第２実施形態ではベース表皮２５、即ち外周ベース表皮部２５ｓに基端部が結合（例えば縫着）されてベース表皮２５の表面より外方（特に第４ファスナｆ４側）に張出すシート状の張出部本体６１ｍと、張出部本体６１ｍの先端部に一体的に連設されて第４ファスナｆ４に沿って延びる玉縁状の膨大頭部６１ａとを備える。張出部本体６１ｍは、シート状の可撓性材料、例えば布材や合成樹脂シート材で構成される。 In the second embodiment, the outer projecting portion (contact suppressing portion) 61 is attached (for example, sewn) at the base end thereof to the base skin 25, that is, the outer peripheral base skin portion 25 s, and is outward from the surface of the base skin 25. (Particularly the fourth fastener f4 side) a sheet-shaped overhanging portion main body 61m, and a huge rim extending along the fourth fastener f4 integrally and continuously provided at the tip of the overhanging portion main body 61m. And a head 61a. The overhang portion main body 61m is made of a sheet-like flexible material, for example, a cloth material or a synthetic resin sheet material.
　而して、第２実施形態では、第１実施形態の前記した作用効果に加えて、次の作用効果も併せて達成可能である。 Therefore, in the second embodiment, the following operation and effect can be achieved in addition to the above-described operation and effect of the first embodiment.
　即ち、破断許容部ｍ１が第４ファスナｆ４と比較的近い位置に在っても、外方張出部（接触抑制部）６１の特設により展開時のエアバッグ５２と第４ファスナｆ４との接触を抑制できるため、エアバッグ５２をより的確に展開、作動させることができる。しかも外方張出部（接触抑制部）６１、特に先部の玉縁状の膨大頭部６１ａの張出高さは、第４ファスナｆ４の張出高さよりも高いので、ベース表皮２５の表面に外方張出部６１を設けるだけの簡単な構造で、展開時のエアバッグ５２と第４ファスナｆ４との接触を効果的に抑制可能となる。 That is, even when the break allowance part m1 is located relatively close to the fourth fastener f4, the airbag 52 and the fourth fastener f4 can be in contact with each other at the time of deployment due to the special provision of the outwardly extending part (contact suppression part) 61. Therefore, the airbag 52 can be deployed and operated more accurately. Moreover, the overhang height of the outwardly extending portion (contact suppressing portion) 61, particularly the bead-shaped enlarged head portion 61a at the front portion, is higher than the overhang height of the fourth fastener f4. With the simple structure of merely providing the outwardly extending portion 61, the contact between the airbag 52 and the fourth fastener f4 during deployment can be effectively suppressed.
　尚、第２実施形態では、外方張出部（接触抑制部）６１のシート状の張出部本体６１ｍの先端部に玉縁状、即ち横断面が略円形状の膨大頭部６１ａを一体に連設したものを示したが、膨大頭部６１ａの横断面形状は、第２実施形態に限定されず、展開時のエアバッグ５２と第４ファスナｆ４との接触を抑制可能な形状であればよい。また、このような膨大頭部６１ａを省略して、シート状の張出部本体６１ｍのみで外方張出部（接触抑制部）６１を構成してもよい。 In the second embodiment, an enlarged head 61a having a bead shape, that is, a substantially circular cross section is integrally formed at the tip of the sheet-shaped overhang portion main body 61m of the outward overhang portion (contact suppressing portion) 61. The cross-sectional shape of the enlarged head 61a is not limited to the second embodiment, and may be any shape that can suppress the contact between the airbag 52 and the fourth fastener f4 during deployment. I just need. Further, such an enlarged head 61a may be omitted, and the outwardly projecting portion (contact suppressing portion) 61 may be constituted only by the sheet-like projecting portion main body 61m.
　また図９，図１０には、本発明の第３実施形態が示される。第１実施形態のシートバック用表皮Ｃ２では、ベース表皮２５と着脱容易表皮２６とが重なり合う領域の外でベース表皮２５（即ち外周ベース表皮部２５ｚ）に破断許容部ｍ１が配置されていたが、第３実施形態では、上記領域の内でベース表皮２５（即ち右ベース表皮部２５ｓ）に第１の破断許容部ｍ１が配設される。そして、着脱容易表皮２６には、第１の破断許容部ｍ１と重なり合う第２の破断許容部ｍ２が設けられる。第１，第２の破断許容部ｍ１，ｍ２は、第１実施形態の破断許容部ｍ１と同様、モジュールケース５０の蓋板５０ｃ（従ってカバーパッドＰ２Ｃ）の前縁・上縁・下縁に略沿ってミシン目状に並ぶ一連の小孔群より構成される。 FIGS. 9 and 10 show a third embodiment of the present invention. In the seat back skin C2 of the first embodiment, the break allowance portion m1 is disposed on the base skin 25 (that is, the outer base skin portion 25z) outside the region where the base skin 25 and the easily removable skin 26 overlap. In the third embodiment, a first break allowable portion m1 is provided in the base skin 25 (that is, the right base skin portion 25s) in the above-described region. Further, a second breakable portion m2 overlapping the first breakable portion m1 is provided on the easily removable skin 26. The first and second breakable portions m1 and m2 are substantially at the front edge, the upper edge, and the lower edge of the cover plate 50c of the module case 50 (therefore, the cover pad P2C), like the breakable portion m1 of the first embodiment. It is composed of a series of small holes arranged along the perforation.
　尚、第１，第２の破断許容部ｍ１，ｍ２は、第１実施形態の破断許容部ｍ１と同様、ベース表皮２５及び着脱容易表皮２６において通常使用に耐え得るカバー強度は確保しつつ展開初期のエアバッグ５２により破断可能な脆弱構造であればよく、実施形態に限定されることなく種々の脆弱構造を採用可能である。例えば、上記のようなミシン目状の小孔群に代えて、ベース表皮２５及び着脱容易表皮２６の当該部位を他の部位よりも破れ易い薄手に構成したり、或いは、当該部位に、そこを縦通する切込みを入れ且つその切込み部分の両側相互を低強度に（即ち破れ易いように）縫い合せる構成としてもよい。 The first and second breakable portions m1 and m2 are, like the breakable portion m1 of the first embodiment, in the initial stage of deployment while securing a cover strength that can withstand normal use in the base skin 25 and the easily removable skin 26. Any brittle structure that can be broken by the airbag 52 described above may be used, and various brittle structures can be adopted without being limited to the embodiment. For example, instead of the perforated group of small holes as described above, the corresponding portions of the base skin 25 and the easily removable skin 26 may be configured to be thinner than the other portions, or may be formed in the corresponding portions. A configuration may be adopted in which a cut is made longitudinally and both sides of the cut are sewn together with low strength (that is, so as to be easily torn).
　そして、第３実施形態においても、第１実施形態と基本的に同様の作用効果を達成可能である。 Also, in the third embodiment, it is possible to achieve basically the same operation and effect as in the first embodiment.
　更に第３実施形態においては、ベース表皮２５の上に着脱容易表皮２６と重なり合う領域が存在し且つこの領域に第１の破断許容部ｍ１が配置されても、その第１の破断許容部ｍ１と重なり合う第２の破断許容部ｍ２が着脱容易表皮２６に設けられるため、エアバッグ５２の展開動作が着脱容易表皮２６で阻害される虞れはなくなり、エアバッグ５２の的確な作動を確保する上で有利となる。 Furthermore, in the third embodiment, even if there is a region on the base skin 25 that overlaps the easily removable skin 26 and the first breakable portion m1 is arranged in this region, the first breakable portion m1 is Since the overlapping second breakable portions m2 are provided on the easily removable skin 26, there is no possibility that the deployment operation of the airbag 52 is hindered by the easily removable skin 26, and in order to ensure the proper operation of the airbag 52. This is advantageous.
　尚、第３実施形態の表皮Ｃ２の構造に第２実施形態の外方張出部（接触抑制部）６１を適用することも可能であり、その場合は、外方張出部（接触抑制部）６１の基端部が着脱容易表皮２６（具体的には右着脱容易表皮部２６ｓ）に結合、例えば縫着される。 In addition, it is also possible to apply the outwardly extending portion (contact suppressing portion) 61 of the second embodiment to the structure of the skin C2 of the third embodiment, in which case, the outwardly extending portion (contact suppressing portion). The base end of 61) is connected to the easily removable skin 26 (specifically, the right easily removable skin 26s), and is sewn, for example.
　以上、本発明の実施形態について説明したが、本発明は、実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々の設計変更が可能である。 Although the embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various design changes can be made without departing from the gist of the present invention.
　例えば、前記実施形態では、乗物用シートとして自動車用シートＳを例示したが、本発明では、自動車以外の車両（例えば鉄道車両）に用いられるシートや、車両以外の乗物（例えば船舶、航空機）に用いられるシートにも適用可能である。 For example, in the above embodiment, the vehicle seat S is illustrated as the vehicle seat. However, in the present invention, the vehicle seat S is used for a vehicle other than an automobile (for example, a railway vehicle) or a vehicle other than a vehicle (for example, a ship or an aircraft). It is applicable to the sheet used.
　また前記実施形態では、エアバッグモジュールＡＭをシートバック部Ｓ２のバックパッドＰ２に内蔵して、エアバッグ５２をバックパッドＰ２表面より膨張展開させるようにしたものを示したが、本発明では、エアバッグモジュールをシート座部Ｓ１の座部パッドＰ１に内蔵して、エアバッグを座部パッドＰ１表面より膨張展開させるようにしてもよい。この場合は、座部用表皮Ｃ１の第１，第２表皮（即ちベース表皮１５及び着脱容易表皮１６）の少なくとも一方に、第１，第２表皮相互を接続する接続具としてのファスナｆ１′～ｆ４′から間隔をおいて破断許容部ｍ１が配設される。 In the above-described embodiment, the airbag module AM is built in the back pad P2 of the seat back portion S2, and the airbag 52 is inflated and deployed from the surface of the back pad P2. The bag module may be built in the seat pad P1 of the seat S1, and the airbag may be inflated and deployed from the surface of the seat pad P1. In this case, at least one of the first and second skins (that is, the base skin 15 and the easily removable skin 16) of the seat skin C1 is provided with a fastener f1 'to serve as a connector for connecting the first and second skins to each other. A break allowance portion m1 is provided at an interval from f4 '.
　また前記実施形態では、座部用表皮Ｃ１及びシートバック用表皮Ｃ２を、ベース表皮１５，２５の少なくとも一部が着脱容易表皮１６，２６と重なり合う二層構造としたものを示したが、本発明では、ベース表皮と着脱容易表皮とが重なり合わない一層構造（例えば日本特開2016-97275号公報を参照）としてもよい。尚、その一層構造の場合においても、表皮の引込み構造は、前記実施形態と同様の構造とされる。また、その一層構造の場合には、ベース表皮（第１表皮）又は着脱容易表皮（第２表皮）の何れか一方に、破断許容部ｍ１を、エアバッグモジュールＡＭの周辺に位置する特定の接続具（第４ファスナｆ４）から間隔をおいて設けるようにする。 In the above-described embodiment, the seat skin C1 and the seat back skin C2 have a two-layer structure in which at least a part of the base skins 15 and 25 overlap the easily removable skins 16 and 26. In this case, a single-layer structure in which the base skin and the easily removable skin do not overlap (for example, see Japanese Patent Application Laid-Open No. 2016-97275) may be used. In addition, even in the case of the one-layer structure, the retracting structure of the skin is the same as that of the above embodiment. Further, in the case of the single-layer structure, a breakable portion m1 is provided on one of the base skin (first skin) and the easily removable skin (second skin) in a specific connection located around the airbag module AM. The tool (fourth fastener f4) is provided at an interval.
　また前記実施形態では、座部用表皮Ｃ１及びシートバック用表皮Ｃ２をそれぞれ構成するベース表皮１５，２５及び着脱容易表皮１６，２６の各々を薄皮状の一層構造としたものを示したが、本発明では、ベース表皮１５，２５及び着脱容易表皮１６，２６のうちの少なくとも一方の表皮を、互いに重なり合う少なくとも２枚の外皮の相互間に薄肉のクッションシート材を挟んだ多層構造（例えば実公平6-14628号公報を参照）の表皮としてもよい。 In the above embodiment, the base skins 15, 25 and the detachable skins 16, 26, which constitute the seat skin C1 and the seat back skin C2, respectively, have a thin skin-like single-layer structure. According to the present invention, at least one of the base skins 15, 25 and the easily removable skins 16, 26 is provided with a multilayer structure (for example, a real non-woven fabric) in which a thin cushion sheet material is sandwiched between at least two outer skins overlapping each other. -14628).
　また前記実施形態では、シートバック用表皮Ｃ２のベース表皮２５に、展開初期のエアバッグ５２により破断可能な破断許容部ｍ１が、バックパッドＰ２の表面におけるエアバッグ展開開始部位Ｐ２ｘとの対応位置（即ち展開開始部位Ｐ２ｘとの対向位置又はその近傍位置）に配設されていて、破断許容部ｍ１の破断が容易に且つ効率よく行われるものを示したが、破断許容部ｍ１の配設位置は、エアバッグ５２の展開初期にエアバッグ５２で破断されてエアバッグ５２の展開動作を無理なく許容し得る位置であればよく、例えば、上記対応位置から多少離れた位置であってもよい。 Further, in the above-described embodiment, a breakable portion m1 that can be broken by the airbag 52 in the initial stage of deployment is provided on the base skin 25 of the seatback skin C2 at a position corresponding to the airbag deployment start site P2x on the surface of the back pad P2 ( That is, it is arranged at a position facing the deployment start site P2x or at a position in the vicinity thereof, and the breakable portion m1 can be easily and efficiently broken. Any position may be used as long as it is broken by the airbag 52 at the initial stage of deployment of the airbag 52 and the deployment operation of the airbag 52 can be reasonably permitted, for example, a position slightly away from the corresponding position.
　また前記実施形態では、エアバッグモジュールＡＭが、折り畳み状態のエアバッグ５２やインフレータ５１を収納した扁平箱状のモジュールケース５０を備えていて、このモジュールケース５０で、エアバッグ５２のバックパッドＰ２表面からの展開方向を制御できるようにしているが、本発明では、モジュールケースを省略したケースレスのエアバッグモジュール（例えば特許第6211839号公報を参照）を使用してもよい。この場合、エアバッグがバックパッドの前方内部に向かって膨張するのを抑制してエアバッグの展開方向を適正に制御するために、表皮に接続されてエアバッグの膨張力を受ける力布（例えば特許第6211839号公報を参照）を使用可能である。 Further, in the above-described embodiment, the airbag module AM includes the flat box-shaped module case 50 in which the airbag 52 and the inflator 51 are stored in a folded state. However, in the present invention, a caseless airbag module in which the module case is omitted (for example, see Japanese Patent No. 6211839) may be used. In this case, in order to suppress the inflation of the airbag toward the inside of the front of the back pad and appropriately control the deployment direction of the airbag, a webbing (e.g., Japanese Patent No. 6211839) can be used.
　また前記実施形態では、引込み孔Ｐ２ｈを貫通する第１，第２連結部材Ｊ１，Ｊ２を、サイドフレーム２０（より具体的にはフレーム主部２０ｂ）の内側面に固定した支持部材４１に係止、連結させるものを示したが、引込み孔Ｐ２ｈとサイドフレーム２０とが近いシート構造の場合には、支持部材４１を省略して第１，第２連結部材Ｊ１，Ｊ２を、サイドフレーム２０に設けた不図示の被係止部（例えば貫通孔、鉤状突起部等）に直接係止、連結させるようにしてもよい。 Further, in the above-described embodiment, the first and second connecting members J1 and J2 penetrating through the drawing hole P2h are locked to the support member 41 fixed to the inner surface of the side frame 20 (more specifically, the frame main portion 20b). In the case of a seat structure in which the drawing hole P2h and the side frame 20 are close to each other, the support member 41 is omitted and the first and second connecting members J1 and J2 are provided on the side frame 20. Alternatively, it may be directly locked and connected to a not-shown locked portion (for example, a through hole, a hook-shaped projection, or the like).
　また前記実施形態では、各連結部材Ｊ１～Ｊ３の部材本体Ｊａを剛性のある帯板材より構成したものを示したが、本発明の連結部材の部材本体Ｊａの形状は、実施形態に限定されず、引込み孔Ｐ２ｈを通過可能な形状であればよい。例えば、部材本体Ｊａを棒状材としてもよく、或いはまた、必要な連結強度を確保可能であれば部材本体Ｊａを可撓性材料より構成してもよい。 In the above-described embodiment, the member main body Ja of each of the connecting members J1 to J3 is shown to be formed of a rigid band plate material. However, the shape of the member main body Ja of the connecting member of the present invention is not limited to the embodiment. Any shape can be used as long as it can pass through the drawing hole P2h. For example, the member body Ja may be a rod-shaped material, or the member body Ja may be made of a flexible material if necessary connection strength can be secured.
　また前記実施形態では、各連結部材Ｊ１～Ｊ３を表皮Ｃ２（具体的にはベース表皮２５）の引込み溝ｇ１～ｇ３内への引込み部分に直接結合（縫着）したものを示したが、その引込み部分に取付けられて引込み溝ｇ１～ｇ３の長手方向に延びる縁補強部材（例えばワイヤ）を介して、該引込み部分に各連結部材Ｊ１～Ｊ３を結合するようにしてもよい。 In the above embodiment, the connecting members J1 to J3 are directly connected (sewn) to the recessed portions of the skin C2 (specifically, the base skin 25) into the recessed grooves g1 to g3. Each of the connecting members J1 to J3 may be connected to the retracted portion via an edge reinforcing member (for example, a wire) attached to the retracted portion and extending in the longitudinal direction of the recessed grooves g1 to g3.
　また前記実施形態では、シート用送風空調機能を持たない備えた乗物用シートを例示したが、本発明は、シートのパッド（例えば座部パッド）に設けた通気路と、送風装置（例えば送風ファン）と、それら通気路及び送風装置間を接続するダクトとを備えてシート用送風空調機能を発揮する乗物用シート（例えば国際公開WO2018/061602A2公報、日本特開2005-287532号公報等を参照）にも適用可能である。この場合、本実施形態のエアバッグモジュールＡＭ、支持部材４１、引込み溝ｇ１～ｇ３，ｇ１′～ｇ３′、引込み孔Ｐ２ｈ、連結部材Ｊ１～Ｊ３、受圧板２４、波形スプリング２９及びワイヤ２８は、シート座部Ｓ１又はシートバック部Ｓ２に設けられる上記した通気路、ダクト及び送風装置を避けるように配設される。 Further, in the above-described embodiment, the vehicle seat having no air-blowing air-conditioning function for the seat is exemplified. However, the present invention relates to a ventilation path provided in a pad of the seat (for example, a seat pad) and a blowing device (for example, a blowing fan). ) And a duct for connecting the ventilation path and the blower with a ventilation seat air-conditioning function (see, for example, International Publication WO2018 / 061602A2, Japanese Patent Application Publication No. 2005-287532). Is also applicable. In this case, the airbag module AM of this embodiment, the support member 41, the recess grooves g1 to g3, g1 'to g3', the recess hole P2h, the connecting members J1 to J3, the pressure receiving plate 24, the wave spring 29, and the wire 28 The air passage, the duct, and the air blower provided in the seat portion S1 or the seat back portion S2 are disposed so as to avoid the above-described air passage, the duct, and the blower.
　＜前記第２の課題の解決手段の実施形態＞
　先ず、図１２～図１８を参照して、第１実施形態について説明する。乗物用シートとしての自動車用シートＳは、乗員の尻部を下方から支持するシート座部Ｓ１と、乗員の背中を後方から支持するシートバック部Ｓ２と、シートバック部Ｓ２の上部に装着されるヘッドレストＳ３とを備える。 <Embodiment of Means for Solving the Second Problem>
First, a first embodiment will be described with reference to FIGS. The vehicle seat S as a vehicle seat is mounted on an upper portion of the seat back portion S1 that supports the occupant's buttocks from below, a seat back portion S2 that supports the occupant's back from behind, and a seat back portion S2. And a headrest S3.
　シート座部Ｓ１は、座部パッドＰ１と、座部パッドＰ１を裏面側（即ち下側）から支持する座部フレームＦ１と、座部パッドＰ１の外表面を被覆する座部用表皮Ｃ１とを備える。座部フレームＦ１は、車体フロア３０に従来周知の前後位置調整機構３１を介して支持されており、これにより、シート座部Ｓ２は、車体フロア３１に対し任意の前後位置に調節、固定できるようになっている。 The seat portion S1 includes a seat portion pad P1, a seat portion frame F1 that supports the seat portion pad P1 from the back side (that is, a lower side), and a seat skin C1 that covers the outer surface of the seat portion pad P1. Prepare. The seat frame F1 is supported on the vehicle body floor 30 via a conventionally well-known front / rear position adjusting mechanism 31, so that the seat seat S2 can be adjusted and fixed to an arbitrary front / rear position with respect to the vehicle body floor 31. It has become.
　シートバック部Ｓ２は、バックパッドＰ２と、バックパッドＰ２を裏面側（即ち後側）から支持するバックフレームＦ２と、バックパッドＰ２の外表面を被覆するシートバック用表皮Ｃ２とを備える。バックフレームＦ２は、従来周知のリクライニング機構３２を介して座部フレームＦ１の後部に支持されており、これにより、シートバック部Ｓ２は、起立角度を任意に調節、固定できるようになっている。 The seat back portion S2 includes a back pad P2, a back frame F2 that supports the back pad P2 from the back side (that is, the rear side), and a seat back skin C2 that covers an outer surface of the back pad P2. The back frame F2 is supported at the rear of the seat frame F1 via a conventionally known reclining mechanism 32, whereby the seat back portion S2 can adjust and fix the standing angle arbitrarily.
　次にシート座部Ｓ１及びシートバック部Ｓ２の具体例を順次、説明する。 Next, specific examples of the seat portion S1 and the seat back portion S2 will be sequentially described.
　シート座部Ｓ１の骨格フレームとなる座部フレームＦ１は、前後方向に延びる左右一対のサイドフレーム１０，１０と、その両サイドフレーム１０，１０の後端部間を結合すべく左右方向に延びる後部クロスメンバ１２とを備えた金属製のフレーム枠で構成される。尚、両サイドフレーム１０，１０の前端部間は、必要に応じて前部クロスメンバ（不図示）で結合するようにしてもよい。 A seat frame F1 serving as a skeleton frame of the seat seat portion S1 has a pair of left and right side frames 10, 10 extending in the front-rear direction, and a rear portion extending in the left-right direction to join between the rear ends of the two side frames 10, 10. It is constituted by a metal frame provided with the cross member 12. The front end portions of the side frames 10, 10 may be connected by a front cross member (not shown) as necessary.
　左右のサイドフレーム１０，１０の前半部には、パンフレーム１１の前部の左右両側部がそれぞれ載置、固定（実施形態ではビス止め）される。パンフレーム１１は、上面を開放した概略箱状の金属製又は合成樹脂製の板状部材で構成され、座部パッドＰ１の下面を略全域に亘り受容、支持できるように概ね矩形の皿状に形成される。 (4) The left and right sides of the front portion of the pan frame 11 are placed and fixed (in the embodiment, screwed) on the front halves of the left and right side frames 10, 10, respectively. The pan frame 11 is formed of a substantially box-shaped metal or synthetic resin plate-like member having an open upper surface, and has a generally rectangular dish shape so as to receive and support the lower surface of the seat pad P1 over substantially the entire area. It is formed.
　即ち、パンフレーム１１は、座部パッドＰ１の下面に沿うように概ね平坦に形成される基板部１１ｂと、基板部１１ｂの前、後端部よりそれぞれ立ち上がる前，後板部１１ｆ，１１ｒと、基板部１１ｂの左右両側より上方外向きに傾斜して立ち上がる傾斜部としての左、右側板部１１ｓとを一体に有する。後板部１１ｒの上端部は、後部クロスメンバ１２に係合、支持される。 That is, the pan frame 11 includes a substrate portion 11b which is formed substantially flat along the lower surface of the seat portion pad P1, a front portion of the substrate portion 11b, a portion before rising from a rear end portion, and rear plate portions 11f and 11r. Left and right side plate portions 11s are integrally formed as inclined portions that rise upward and incline outward from both left and right sides of the substrate portion 11b. The upper end of the rear plate 11r is engaged with and supported by the rear cross member 12.
　このようにしてパンフレーム１１は、座部フレームＦ１に架設されて座部パッドＰ１を底面側から支持するものであって、本発明の受圧部材の一例である。また座部パッドＰ１は本発明のパッドの一例であり、座部フレームＦ１は本発明のフレームの一例である。 The pan frame 11 is thus mounted on the seat frame F1 to support the seat pad P1 from the bottom side, and is an example of the pressure receiving member of the present invention. The seat pad P1 is an example of the pad of the present invention, and the seat frame F1 is an example of the frame of the present invention.
　そして、パンフレーム１１の基板部１１ｂ及び左、右側板部１１ｓには複数の貫通孔ｈ１…，ｈ２…が、パンフレーム１１の必要な剛性強度を損なわないようにして設けられる。基板部１１ｂにおいて、少なくとも一部（実施形態では全部）の貫通孔ｈ１の周辺部には、貫通孔ｈ１を挟んで前後方向に延びる補強用ビード１１ｂｂが一体に設けられる。各々の補強用ビード１１ｂｂは、パンフレーム１１の一部を横断面略円弧状に彎曲形成したものであり、特に上面が第１実施形態の如く凹面となる補強用ビード１１ｂｂが本発明の凹陥部を構成し、また図示はしないが、上面が凸面となる補強用ビード１１ｂｂが本発明の隆起部を構成する。尚、補強用ビード１１ｂｂは、一部の貫通孔ｈ１，ｈ２を囲繞するように形成されてもよい。 .., H2... Are provided in the substrate portion 11b and the left and right side plate portions 11s of the pan frame 11 so as not to impair the required rigidity of the pan frame 11. In the substrate portion 11b, at least a part (all in the embodiment) of the through-hole h1 is integrally provided with a reinforcing bead 11bb extending in the front-rear direction across the through-hole h1. Each reinforcing bead 11bb is formed by curving a part of the pan frame 11 in a substantially circular arc shape in cross section. In particular, the reinforcing bead 11bb whose upper surface is concave as in the first embodiment is a concave portion of the present invention. Although not shown, the reinforcing bead 11bb whose upper surface is a convex surface constitutes a raised portion of the present invention. The reinforcing bead 11bb may be formed so as to surround some of the through holes h1 and h2.
　而して、貫通孔ｈ１…，ｈ２…は、例えばシート座部Ｓ１の通気性を確保したり電気配線を通したり駄肉を減らしたりするために、或いはまた後述する座部用表皮Ｃ１の引込み用連結部材Ｊ１～Ｊ３をパンフレーム１１に係止、連結するために用いられ、その目的に応じて様々なサイズ・位置に形成される。 The through-holes h1,..., H2,... Are provided, for example, to secure the air permeability of the seat portion S1, to pass electric wiring and reduce waste, or to draw in a seat portion skin C1, which will be described later. It is used for locking and connecting the connecting members J1 to J3 to the pan frame 11, and is formed in various sizes and positions according to the purpose.
　また座部パッドＰ１は、シート材として適度な弾性・硬度を有するクッション材（例えばウレタンフォーム）で所定形状に成形される。即ち、座部パッドＰ１は、図１３（Ｂ）に示すように、上面が座面となる座部パッド本体Ｐ１ｍと、座部パッド本体Ｐ１ｍの左右両側に連なり座面より上方に隆起する左、右隆起パッド部Ｐ１ｓとを備える。そして、座部パッドＰ１の上面には、座部パッド本体Ｐ１ｍと左、右隆起パッド部Ｐ１ｓとの境界部で各々前後方向に延びる第１，第２引込み溝ｇ１，ｇ２と、第１，第２引込み溝ｇ１，ｇ２の中間部相互を連通させるよう左右方向に延びる第３引込み溝ｇ３とが凹設される。 The seat pad P1 is formed into a predetermined shape with a cushion material (for example, urethane foam) having moderate elasticity and hardness as a sheet material. That is, as shown in FIG. 13B, the seat pad P1 includes a seat pad main body P1m having an upper surface serving as a seat surface, and a left side which is connected to the left and right sides of the seat pad main body P1m and protrudes upward from the seat surface. A right raised pad portion P1s. On the upper surface of the seat pad P1, first and second recessed grooves g1 and g2 extending in the front-rear direction at the boundary between the seat pad body P1m and the left and right raised pad portions P1s, respectively, are provided. A third pull-in groove g3 extending in the left-right direction is formed in a recessed manner so that the intermediate portions of the two pull-in grooves g1 and g2 communicate with each other.
　更に座部パッドＰ１には、図１５，図１６に示すように、各々の引込み溝ｇ１～ｇ３の底面に一端が開口し且つ座部パッドＰ１の裏面に他端が開口する複数の引込み孔Ｐ１ｈ…が、各々の引込み溝ｇ１～ｇ３の長手方向に間隔をおいて形成される。 Further, as shown in FIGS. 15 and 16, the seat pad P1 has a plurality of recesses P1h each having one end opened on the bottom surface of each of the recess grooves g1 to g3 and the other end opened on the back surface of the seat pad P1. Are formed at intervals in the longitudinal direction of each of the recessed grooves g1 to g3.
　また座部用表皮Ｃ１は、図１３（Ａ）に示すように、座部パッドＰ１に固定されて座部パッドＰ１の外表面を覆うベース表皮１５と、ベース表皮１５の上面全面を覆う着脱容易表皮１６とを備える。その着脱容易表皮１６は、後述するように各引込み溝ｇ１～ｇ３内に引き込まれた表皮部分が第１～第３ファスナｆ１～ｆ３を介してベース表皮１５に着脱可能に接続され、更に着脱容易表皮１６の外周縁部が第４ファスナｆ４を介してベース表皮１５に着脱可能に接続される。 Further, as shown in FIG. 13A, the seat skin C1 is fixed to the seat pad P1 to cover the outer surface of the seat pad P1, and the seat skin C1 is easily attached and detached to cover the entire upper surface of the base skin 15. And an epidermis 16. The detachable skin 16 is detachably connected to the base skin 15 via first to third fasteners f1 to f3, as will be described later. The outer peripheral edge of the skin 16 is detachably connected to the base skin 15 via a fourth fastener f4.
　ベース表皮１５は、座部パッドＰ１の形状に対応して、座部パッド本体Ｐ１ｍを覆う中央ベース表皮部１５ｍと、左、右隆起パッド部Ｐ１ｓの上面及び側面上部を覆う左、右ベース表皮部１５ｓと、座部パッドＰ１の外周面を全周に亘り覆う外周ベース表皮部１５ｚとを備えると共に、それらベース表皮部１５ｍ，１５ｓ，１５ｚが相互間で縫着されていて、全体が一体となって座部パッドＰ１を覆っている。 The base skin 15 corresponds to the shape of the seat pad P1, and includes a central base skin 15m that covers the seat pad body P1m, and left and right base skins that cover the upper surface and the upper side surface of the left and right raised pad P1s. 15s, and an outer peripheral base skin portion 15z that covers the entire outer peripheral surface of the seat pad P1. The base skin portions 15m, 15s, and 15z are sewn to each other, and the whole is integrated. Cover the seat pad P1.
　外周ベース表皮部１５ｚの下半部外周は、図１５に示すように左、右隆起パッド部Ｐ１ｓの外側面を覆いつつ左右のサイドフレーム１０にそれらの下面側に回り込むように固定（例えば接着）されると共に、図１６に示すように座部パッド本体Ｐ１ｍの前，後端部にそれらの下面側に回り込むように固定（例えば接着）される。 As shown in FIG. 15, the lower half outer periphery of the outer peripheral base skin portion 15z covers the outer surfaces of the left and right raised pad portions P1s and is fixed to the left and right side frames 10 so as to go around the lower surfaces thereof (for example, adhered). At the same time, as shown in FIG. 16, the seat pad body P1m is fixed (for example, adhered) to the front and rear ends of the seat pad body P1m so as to go around the lower surface thereof.
　一方、着脱容易表皮１６は、ベース表皮１５の中央ベース表皮部１５ｍを覆う中央着脱容易表皮部１６ｍと、左、右ベース表皮部１５ｓをそれぞれ覆う左、右着脱容易表皮部１６ｓとを備えると共に、それら着脱容易表皮部１６ｍ，１６ｓが相互間で縫着されていて、全体が一体となってベース表皮１５の主要部、即ち上面及び左右側面上部を覆っている。 On the other hand, the easily removable skin 16 includes a central easily removable skin portion 16m that covers the central base skin portion 15m of the base skin 15, and left and right easily removable skin portions 16s that respectively cover the left and right base skin portions 15s. These easily removable skin portions 16m and 16s are sewn between each other, and cover the main portion of the base skin 15 as a whole, that is, the upper surface and the upper portions on the right and left side surfaces.
　次にベース表皮１５の座部パッドＰ１への固定構造について説明する。ベース表皮１５の中央ベース表皮部１５ｍと左、右ベース表皮部１５ｓとの各縫着部は、図１５に示すように第１，第２引込み溝ｇ１，ｇ２にそれぞれ対応した位置に設定されていて、対応する引込み溝ｇ１，ｇ２内に引き込まれ、その引込み部分は、座部パッドＰ１を貫通する各複数の第１，第２連結部材Ｊ１…，Ｊ２…を介してパンフレーム１１に係止、連結される。尚、図１５では左側の第１連結部材Ｊ１の連結構造のみを図示したが、右側の第２連結部材Ｊ２の連結構造も同様の構造・配置である。 Next, a structure for fixing the base skin 15 to the seat pad P1 will be described. The sewn portions of the central base skin portion 15m and the left and right base skin portions 15s of the base skin 15 are set at positions corresponding to the first and second recessed grooves g1 and g2, respectively, as shown in FIG. Are drawn into the corresponding recessed grooves g1 and g2, and the recessed portions are engaged with the pan frame 11 via the plurality of first and second connecting members J1..., J2. , Are linked. Although only the connection structure of the first connection member J1 on the left side is shown in FIG. 15, the connection structure of the second connection member J2 on the right side has the same structure and arrangement.
　また中央ベース表皮部１５ｍの前後中間部は、第３引込み溝ｇ３内に引き込まれ、その引込み部分は、図１６に示すように座部パッドＰ１を貫通する複数の第３連結部材Ｊ３…を介してパンフレーム１１に係止、連結される。 In addition, the front and rear middle portion of the central base skin portion 15m is drawn into the third drawing groove g3, and the drawing portion is interposed through a plurality of third connecting members J3 penetrating the seat pad P1 as shown in FIG. And locked to the pan frame 11.
　ベース表皮１５の上記固定構造をより具体的に説明すると、中央ベース表皮部１５ｍと左、右ベース表皮部１５ｓとの各縫着部には、例えば上下方向に延びる各々複数の第１，第２連結部材Ｊ１…，Ｊ２…の上端部が固定（例えば縫着）され、それら連結部材Ｊ１…，Ｊ２…は、座部パッドＰ１の前記した複数の引込み孔Ｐ１ｈ…をそれぞれ貫通して座部パッドＰ１の下面に達する。また中央ベース表皮部１５ｍの前後中間部には、上下方向に延びる複数の第３連結部材Ｊ３…の上端部が固定（例えば縫着）され、それら連結部材Ｊ３…は、座部パッドＰ１の複数の引込み孔Ｐ１ｈ…をそれぞれ貫通して座部パッドＰ１の下面に達する。 More specifically, the fixing structure of the base skin 15 will be described in more detail. For example, a plurality of first and second first and second sewn portions extending in the up-down direction are provided on the sewn portions of the center base skin 15m and the left and right base skins 15s. The upper ends of the connecting members J1,..., J2 are fixed (eg, sewn), and the connecting members J1,. It reaches the lower surface of P1. Also, upper and lower ends of a plurality of third connecting members J3 extending vertically are fixed (for example, sewn) to front and rear intermediate portions of the central base skin portion 15m, and the connecting members J3 are formed of a plurality of seat pads P1. , Respectively, and reaches the lower surface of the seat pad P1.
　各々の連結部材Ｊ１～Ｊ３は、帯板状に形成されて上下方向に延びる部材本体Ｊａと、部材本体Ｊａの下端部に結合、固定される係止片１７ｊとを備える。後述するように係止片１７ｊは、パンフレーム１１の各複数の貫通孔ｈ１…，ｈ２…のうち、特に座部パッドＰ１の引込み孔Ｐ１ｈ…の直下部又はその近傍部に位置する貫通孔ｈ１…，ｈ２…に係止、連結される。 連結 Each of the connecting members J1 to J3 includes a member main body Ja formed in a strip shape and extending in the vertical direction, and a locking piece 17j coupled and fixed to a lower end portion of the member main body Ja. As will be described later, the locking piece 17j is a through-hole h1 located immediately below or near the lead-in hole P1h of the seat pad P1 among the plurality of through-holes h1. .., H2.
　特に第１実施形態では、図１５，図１６に例示したようなＪ字状のフックよりなる係止片１７ｊが用いられる。そして、その係止片１７ｊの先端の鉤部を、パンフレーム１１の各複数の貫通孔ｈ１…，ｈ２…のうち、座部パッドＰ１の引込み孔Ｐ１ｈ対応位置（即ち引込み孔Ｐ１ｈの直下部又はその近傍部、以下同様）に存する貫通孔ｈ１又はｈ２に係止、連結させる。 In particular, in the first embodiment, a locking piece 17j composed of a J-shaped hook as illustrated in FIGS. 15 and 16 is used. .., H2... Of the plurality of through-holes h1..., H2... Of the pan frame 11 at the position corresponding to the recessed hole P1h of the seat pad P1 (that is, immediately below the recessed hole P1h or In the vicinity thereof, the same shall apply hereinafter), and is locked and connected to the through hole h1 or h2.
　例えば、図１５には、第１連結部材Ｊ１の係止片１７ｊを、パンフレーム１１の傾斜部としての側板部１１ｓの貫通孔ｈ２に嵌合、係止させた一例が示されており、また図１６には、第３連結部材Ｊ３の係止片１７ｊを、パンフレーム１１の基板部１１ｂの、相隣なる補強用ビード１１ｂｂの相互間に存する貫通孔ｈ１に嵌合、係止させた一例が示される。尚、パンフレーム１１の下面には、係止片１７ｊの貫通孔ｈ１との係止が妄りに外れないように係止片１７ｊの鉤部先端を係合させる係合凹部（図１５，図１６を参照）を必要に応じて凹設してもよい。 For example, FIG. 15 shows an example in which the locking piece 17j of the first connecting member J1 is fitted and locked in the through hole h2 of the side plate portion 11s as the inclined portion of the pan frame 11, and FIG. 16 shows an example in which the locking piece 17j of the third connecting member J3 is fitted and locked in the through hole h1 existing between the adjacent reinforcing beads 11bb of the board portion 11b of the pan frame 11. Is shown. The lower surface of the pan frame 11 is provided with an engaging recess (FIGS. 15 and 16) for engaging the tip of the hook of the locking piece 17j so that the locking of the locking piece 17j with the through hole h1 does not come off. May be recessed if necessary.
　また、図示はしないが図１５，図１６の断面以外の部位においても、各連結部材Ｊ１～Ｊ３の係止片１７ｊは、座部パッドＰ１の引込み孔Ｐ１ｈ対応位置に存する貫通孔ｈ１又はｈ２に係止、連結される。 Although not shown, the locking piece 17j of each of the connecting members J1 to J3 is also inserted into the through-hole h1 or h2 located at a position corresponding to the drawing hole P1h of the seat pad P1 at a portion other than the cross section of FIGS. Locked and connected.
　ところでパンフレーム１１の基板部１１ｂにおいて、例えば図１８（Ａ）に示す変形例のように補強用ビード１１ｂｂ（凹陥部又は隆起部）が引込み孔Ｐ１ｈ対応位置に存する場合には、補強用ビード１１ｂｂ（凹陥部又は隆起部）に設けた貫通孔ｈ３、又はパンフレーム１１の、補強用ビード１１ｂｂに隣接する部分に設けた貫通孔（図示せず）に係止片１７ｊを係止、連結させるようにしてもよい。 By the way, in the substrate portion 11b of the pan frame 11, when the reinforcing bead 11bb (concave portion or protruding portion) exists at a position corresponding to the drawing hole P1h as in a modified example shown in FIG. The locking piece 17j is locked and connected to the through hole h3 provided in the (recessed or raised portion) or the through hole (not shown) provided in a portion of the pan frame 11 adjacent to the reinforcing bead 11bb. It may be.
　また第１～第３連結部材Ｊ１～Ｊ３の係止片としては、上記したフック状の係止片１７ｊに限定されず、即ちパンフレーム１１に係止、連結可能な種々の形状に形成可能である。そのような係止片として、例えば図１８（Ｂ）（Ｃ）に示す変形例のように、弾性変形可能な係止爪部１７ｋｔを先部に一体に有したクリップよりなる係止片１７ｋを用いてもよい。例えば、図１８（Ｂ）には、クリップからなる係止片１７ｋをパンフレーム１１の傾斜部としての側板部１１ｓの貫通孔ｈ２に嵌合、係止させた一例が示され、また図１８（Ｃ）には、クリップからなる係止片１７ｋを、相隣なる補強用ビード１１ｂｂ（凹陥部又は隆起部）間でパンフレーム１１の基板部１１ｂに設けた比較的小さな貫通孔ｈ１に嵌合、係止させた一例が示される。 Further, the locking pieces of the first to third connecting members J1 to J3 are not limited to the hook-shaped locking pieces 17j described above, that is, they can be formed into various shapes that can be locked and connected to the pan frame 11. is there. As such a locking piece, for example, as shown in a modified example shown in FIGS. 18B and 18C, a locking piece 17k composed of a clip integrally having an elastically deformable locking claw 17kt at its tip is used. May be used. For example, FIG. 18B shows an example in which a locking piece 17k made of a clip is fitted and locked in a through hole h2 of a side plate portion 11s as an inclined portion of the pan frame 11, and FIG. C), a locking piece 17k formed of a clip is fitted into a relatively small through-hole h1 provided in the substrate portion 11b of the pan frame 11 between adjacent reinforcing beads 11bb (concave portions or raised portions). One example of locking is shown.
　これら図１８（Ｂ）（Ｃ）の変形例の場合、係止片１７ｋは、パンフレーム１１への取付けに際し、先細りの先部を貫通孔ｈ１，ｈ２に上方より押し込むようにする。その押込み過程で、係止片１７ｋの係止爪部１７ｋｔは、貫通孔ｈ１，ｈ２を通過し得るよう弾性収縮変形し、通過後には復元して貫通孔ｈ１，ｈ２の開口縁に係止される。 In the case of the modified examples shown in FIGS. 18B and 18C, when attaching to the pan frame 11, the locking piece 17k pushes the tapered tip into the through holes h1 and h2 from above. In the pushing process, the locking claw 17kt of the locking piece 17k is elastically contracted and deformed so as to be able to pass through the through holes h1 and h2, and is restored after passing through and locked at the opening edges of the through holes h1 and h2. You.
　また上記した係止片１７ｊ，１７ｋの各例は、これをパンフレーム１１の貫通孔ｈ１～ｈ３に係止させるものであったが、貫通孔ｈ１～ｈ３に代えて／又は加えて、パンフレーム１１の上面に、図１８（Ｄ）に示す変形例の如く係止片１７ｊを係脱可能に係止させる被係止部（例えば開口、鉤部、係止孔等）を有する係止部材１１ｔを突設させるようにしてもよい。 In each of the above-described examples of the locking pieces 17j and 17k, the locking pieces 17j and 17k are locked in the through holes h1 to h3 of the pan frame 11, but instead of / in addition to the through holes h1 to h3, the pan frame A locking member 11t having a locked portion (for example, an opening, a hook portion, a locking hole, etc.) for locking the locking piece 17j in a detachable manner on the upper surface of the locking member 17j as in a modification shown in FIG. May be protruded.
　次にベース表皮１５と着脱容易表皮１６との接続構造について、図１５，図１６を参照して説明する。第１，第２引込み溝ｇ１，ｇ２にそれぞれ引き込まれる、中央ベース表皮部１５ｍと左、右ベース表皮部１５ｓとの各縫着部には、座部用第１，第２ファスナｆ１，ｆ２の内側ファスナ片ｆ１ｉ，ｆ２ｉの内端縁部がそれぞれ固定（例えば縫着）される。また同じく第１，第２引込み溝ｇ１，ｇ２にそれぞれ引き込まれる、中央着脱容易表皮部１６ｍと左、右着脱容易表皮部１６ｓとの各縫着部には、座部用第１，第２ファスナｆ１，ｆ２の外側ファスナ片ｆ１ｏ，ｆ２ｏの外端縁部がそれぞれ固定（例えば縫着）される。尚、図１５では左側の第１ファスナｆ１の構造のみを示したが、右側の第２ファスナｆ２の連結構造も同様である。 Next, a connection structure between the base skin 15 and the easily removable skin 16 will be described with reference to FIGS. The first and second seat fasteners f1 and f2 are provided at the respective sewn portions of the central base skin portion 15m and the left and right base skin portions 15s that are respectively drawn into the first and second drawing grooves g1 and g2. The inner end edges of the inner fastener pieces f1i and f2i are fixed (for example, sewn). Also, the first and second fasteners for the seat portion are provided at the respective sewn portions of the center easily removable skin portion 16m and the left and right easily removable skin portions 16s, which are also drawn into the first and second recessed grooves g1 and g2, respectively. The outer edge portions of the outer fastener pieces f1o and f2o of f1 and f2 are fixed (for example, sewn). Note that FIG. 15 shows only the structure of the first fastener f1 on the left, but the same applies to the connection structure of the second fastener f2 on the right.
　一方、第３引込み溝ｇ３に引き込まれる、中央ベース表皮部１５ｍの前後中間部には、座部用第３ファスナｆ３の内側ファスナ片ｆ３ｉの内端縁部が固定（例えば縫着）される。また第３引込み溝ｇ３に引き込まれる、中央着脱容易表皮部１６ｍの前後中間部には、座部用第３ファスナｆ３の外側ファスナ片ｆ３ｏの外端縁部が固定（例えば縫着）される。 On the other hand, the inner end edge of the inner fastener piece f3i of the third fastener f3 for the seat portion is fixed (for example, sewn) to the front-rear intermediate portion of the central base skin portion 15m that is drawn into the third recess groove g3. Further, the outer edge of the outer fastener piece f3o of the third fastener f3 for the seat portion is fixed (for example, sewn) to an intermediate portion between the front and rear portions of the easily removable central skin portion 16m which is drawn into the third recess groove g3.
　更に中央ベース表皮部１５ｍの前縁部及び左、右ベース表皮部１５ｓの左右外縁部と、外周ベース表皮部１５ｚの上縁部との間の縫着部には、座部用第４ファスナｆ４の内側ファスナ片ｆ４ｉの内端縁部が固定（例えば縫着）される。また着脱容易表皮１６の前縁部及び左右外縁部には、座部用第４ファスナｆ４の外側ファスナ片ｆ４ｏの外端縁部が固定（例えば縫着）される。 Further, a fourth fastener f4 for a seat portion is provided on a sewing portion between a front edge portion of the center base skin portion 15m, left and right outer edge portions of the left and right base skin portions 15s, and an upper edge portion of the outer peripheral base skin portion 15z. Is fixed (for example, sewn) at the inner edge of the inner fastener piece f4i. The outer edge of the outer fastener piece f4o of the fourth fastener f4 for the seat is fixed (for example, sewn) to the front edge and the left and right outer edges of the easily removable skin 16.
　そして、座部用第１～第３ファスナｆ１～ｆ３は、それらの外側ファスナ片ｆ１ｏ～ｆ３ｏ及び内側ファスナ片ｆ１ｉ～ｆ３ｉの相互間が、第１～第３引込み溝ｇ１～ｇ３内でそれぞれスライダｆ１ｓ～ｆ３ｓのスライド操作により任意に着脱可能に接続される。また座部用第４ファスナｆ４は、それの外側ファスナ片ｆ４ｏ及び内側ファスナ片ｆ４ｉの相互間が、座部パッドＰ１の前面及び左右側面においてスライダｆ４ｓのスライド操作により任意に着脱可能に接続される。スライダｆ１ｓ～ｆ４ｓの用途機能は、従来周知の線ファスナのスライダのそれと同様である。 The first to third fasteners f1 to f3 for the seat portion are arranged such that the outer fastener pieces f1o to f3o and the inner fastener pieces f1i to f3i are located between the first to third recessed grooves g1 to g3. They are arbitrarily detachably connected by sliding operations f1s to f3s. Further, in the fourth fastener f4 for the seat portion, the outer fastener piece f4o and the inner fastener piece f4i are arbitrarily detachably connected to each other by sliding the slider f4s on the front surface and the left and right side surfaces of the seat pad P1. . The application functions of the sliders f1s to f4s are the same as those of the slider of a conventionally known linear fastener.
　尚、本実施形態では、座部用の第１～第４ファスナｆ１～ｆ４として線ファスナを例示したが、これに代えて、面ファスナ、点ファスナ（例えばボタンファスナ）を使用してもよい。 In the present embodiment, the line fasteners are exemplified as the first to fourth fasteners f1 to f4 for the seat portion. Alternatively, a hook-and-loop fastener or a point fastener (for example, a button fastener) may be used.
　次にシートバック部Ｓ２の構造について説明する。 Next, the structure of the seat back portion S2 will be described.
　シートバック部Ｓ２の骨格フレームとなるバックフレームＦ２は、図１４に示すように、上下方向に延びる左右一対のサイドフレーム２０，２０と、その両サイドフレーム２０，２０の上部間、及び下部間をそれぞれ結合すべく左右方向に延びる上，下部クロスメンバ２１，２２と、両サイドフレーム２０，２０の上端部間を一体に接続するヘッドレスト支持フレーム部２３とを備えた金属製のフレーム枠で構成される。 As shown in FIG. 14, a back frame F2 serving as a skeleton frame of the seat back portion S2 has a pair of left and right side frames 20, 20 extending in the up-down direction, and an upper portion and a lower portion of both side frames 20, 20. It is composed of a metal frame having upper and lower cross members 21 and 22 extending in the left-right direction to be connected to each other, and a headrest support frame 23 for integrally connecting upper ends of both side frames 20 and 20. You.
　バックフレームＦ２、例えば上、下部クロスメンバ２２，２３には、両クロスメンバ２２，２３間に掛け渡した左右一対のワイヤ２８，２８を介して、合成樹脂製又は金属製の受圧板２４が架設、支持される。各ワイヤ２８は、金属製又は合成樹脂製であって弾性を有する。更にこの受圧板２４の下部寄りの背面を支持する少なくとも１本の波形スプリング２９が、左右のサイドフレーム２０，２０間に横架、支持される。これら受圧板２４、波形スプリング２９及びワイヤ２８は、互いに協働してバックパッドＰ２を背面側（即ち後側）から支持する。 A pressure receiving plate 24 made of a synthetic resin or a metal is installed on the back frame F2, for example, the upper and lower cross members 22 and 23 via a pair of left and right wires 28 and 28 extending between the cross members 22 and 23. Supported. Each wire 28 is made of metal or synthetic resin and has elasticity. Further, at least one wave spring 29 that supports the lower rear surface of the pressure receiving plate 24 is suspended and supported between the left and right side frames 20, 20. The pressure receiving plate 24, the wave spring 29, and the wire 28 cooperate with each other to support the back pad P2 from the rear side (that is, the rear side).
　またバックパッドＰ２は、前述の座部パッドＰ１と同様、クッション材（例えばウレタンフォーム）で所定形状に成形されるものであって、図１３に示すように、前面が乗員の背中に対する支持面となるバックパッド本体Ｐ２ｍと、バックパッド本体Ｐ２ｍの左右両側に連なり前方に隆起する左、右隆起パッド部Ｐ２ｓとを備える。そして、バックパッドＰ２の前面には、バックパッド本体Ｐ２ｍと左、右隆起パッド部Ｐ２ｓとの各境界部でそれぞれ上下方向に延びる第１，第２引込み溝ｇ１′，ｇ２′と、第１，第２引込み溝ｇ１′，ｇ２′の中間部相互を連通させるよう左右方向に延びる第３引込み溝ｇ３′とが凹設される。 The back pad P2 is formed into a predetermined shape with a cushion material (for example, urethane foam) similarly to the above-mentioned seat pad P1, and as shown in FIG. Back pad body P2m, and left and right raised pad portions P2s connected to the left and right sides of the back pad body P2m and raised forward. On the front surface of the back pad P2, first and second recessed grooves g1 'and g2' extending vertically in respective boundaries between the back pad body P2m and the left and right raised pad portions P2s, A third drawing groove g3 'extending in the left-right direction is formed so as to be recessed so that the intermediate portions of the second drawing grooves g1' and g2 'communicate with each other.
　更にバックパッドＰ２には、各引込み溝ｇ１′～ｇ３′の底面に一端が開口し且つバックパッドＰ２の背面に他端が開口する複数の引込み孔Ｐ２ｈ…が、各々の引込み溝ｇ１′～ｇ３′の長手方向に互いに間隔をおいて形成される。 Further, the back pad P2 has a plurality of recesses P2h... Having one end opened on the bottom surface of each of the recesses g1 'to g3' and the other end opened on the back surface of the back pad P2. ′ Are spaced apart from each other in the longitudinal direction.
　またシートバック用表皮Ｃ２は、バックパッドＰ２に固定されてバックパッドＰ２の外表面を覆うベース表皮２５と、ベース表皮２５の前面を覆う着脱容易表皮２６とを備える。着脱容易表皮２６は、後述するように各引込み溝ｇ１′～ｇ３′内において第１～第３ファスナｆ１′～ｆ３′を介してベース表皮２５に着脱可能に接続され、更に着脱容易表皮２６の外周縁部において第４ファスナｆ４′を介してベース表皮２５に着脱可能に接続される。 The seat back skin C2 includes a base skin 25 fixed to the back pad P2 and covering the outer surface of the back pad P2, and an easily removable skin 26 covering the front surface of the base skin 25. The easily removable skin 26 is detachably connected to the base skin 25 via first to third fasteners f1 'to f3' in each of the recessed grooves g1 'to g3' as described later. The outer peripheral edge is detachably connected to the base skin 25 via a fourth fastener f4 '.
　ベース表皮２５は、バックパッドＰ２の形状に対応して、バックパッド本体Ｐ２ｍを覆う中央ベース表皮部２５ｍと、左、右隆起パッド部Ｐ２ｓの前面及び側面前部を覆う左、右ベース表皮部２５ｓと、バックパッドＰ２の外周面を全周に亘り覆う外周ベース表皮部２５ｚとを備えると共に、それらベース表皮部２５ｍ，２５ｓ，２５ｚが相互間で縫着されていて、全体が一体となってバックパッドＰ２を覆っている。 The base skin 25 corresponds to the shape of the back pad P2, and includes a central base skin 25m covering the back pad body P2m, and left and right base skins 25s covering the front and side front portions of the left and right raised pad portions P2s. And an outer peripheral base skin portion 25z that covers the entire outer peripheral surface of the back pad P2, and the base skin portions 25m, 25s, and 25z are sewn to each other, and the entire back surface is integrally formed. It covers the pad P2.
　外周ベース表皮部２５ｚの後半部外周は、図１７に示すように左、右隆起パッド部Ｐ２ｓの、サイドフレーム２０外側面及び後面を被覆する部分に固定（例えば接着）されると共に、バックパッド本体Ｐ２ｍの上，下端部にそれらの後面側に回り込むように固定（例えば接着）される。尚、シートバック部Ｓ２の背面のうち、外周ベース表皮部１５ｚでは被覆困難な部位は、図示しないカバー部材をシートバック部Ｓ２背面に装着することで体裁よく被覆可能である。 As shown in FIG. 17, the rear half outer periphery of the outer peripheral base skin portion 25z is fixed (for example, adhered) to portions of the left and right raised pad portions P2s covering the outer surface and the rear surface of the side frame 20, and the back pad body. It is fixed (for example, adhered) to the upper and lower ends of P2m so as to go around the rear surface side. A portion of the back surface of the seat back portion S2 that is difficult to cover with the outer peripheral base skin portion 15z can be covered in a good shape by attaching a cover member (not shown) to the back surface of the seat back portion S2.
　また着脱容易表皮２６は、ベース表皮２５の中央ベース表皮部２５ｍを覆う中央着脱容易表皮部２６ｍと、左、右ベース表皮部２５ｓをそれぞれ覆う左、右着脱容易表皮部２６ｓとを備えると共に、それら着脱容易表皮部の相互間が縫着されていて、全体が一体となってベース表皮２５の前面及び左右側面前部を覆っている。 The easily removable skin 26 includes a central easily removable skin 26m that covers the central base skin 25m of the base skin 25, and left and right easily removable skins 26s that respectively cover the left and right base skins 25s. The easily removable skin portions are sewn together, and the whole covers the front surface of the base skin 25 and the front portions of the left and right side surfaces integrally.
　次に図１７も参照して、ベース表皮２５のバックパッドＰ２への固定構造について説明する。ベース表皮２５の中央ベース表皮部２５ｍと左、右ベース表皮部２５ｓとの各縫着部は、第１，第２引込み溝ｇ１′，ｇ２′にそれぞれ対応した位置に設定されていて、対応する引込み溝ｇ１′，ｇ２′内に引き込まれ、その引込み部分は、バックパッドＰ２を貫通する各複数の第１，第２連結部材Ｊ１′…，Ｊ２′…を介して受圧板２４又はワイヤ２８に係止、連結される。また中央ベース表皮部２５ｍの上下中間部は、第３引込み溝ｇ３′内に引き込まれ、その引込み部分は、バックパッドＰ２を貫通する複数の連結部材Ｊ３′…を介して受圧板２４に係止、連結される。 Next, the fixing structure of the base skin 25 to the back pad P2 will be described with reference to FIG. The sewn portions of the central base skin portion 25m and the left and right base skin portions 25s of the base skin 25 are set at positions corresponding to the first and second recessed grooves g1 'and g2', respectively. Are drawn into the grooves g1 ', g2', and the drawn portions are connected to the pressure receiving plate 24 or the wire 28 via the plurality of first and second connecting members J1 ', J2', which penetrate the back pad P2. Locked and connected. The upper and lower middle portions of the central base skin portion 25m are drawn into the third drawing groove g3 ', and the drawn portion is locked to the pressure receiving plate 24 via a plurality of connecting members J3' ... penetrating the back pad P2. , Are linked.
　より具体的に言えば、中央ベース表皮部２５ｍと左、右ベース表皮部２５ｓとの各縫着部には、前後方向に延びる各複数の第１，第２連結部材Ｊ１′…，Ｊ２′…の前端部が固定（例えば縫着）され、それら連結部材Ｊ１′…，Ｊ２′…は、バックパッドＰ２の複数の引込み孔Ｐ２ｈ…をそれぞれ貫通してバックパッドＰ２の後面に達する。また中央ベース表皮部２５ｍの上下中間部には、前後方向に延びる複数の第３連結部材Ｊ３…の前端部が固定（例えば縫着）され、それら連結部材Ｊ３′…は、バックパッドＰ２の複数の引込み孔Ｐ２ｈ…をそれぞれ貫通してバックパッドＰ２の後面に達する。 More specifically, a plurality of first and second connecting members J1 '... J2'... Extending in the front-rear direction are provided on the sewn portions of the central base skin portion 25m and the left and right base skin portions 25s. Are fixed (for example, sewn), and the connecting members J1 ',..., J2', respectively, pass through the plurality of recesses P2h,... Of the back pad P2 and reach the rear surface of the back pad P2. The front ends of a plurality of third connecting members J3 extending in the front-rear direction are fixed (for example, sewn) to upper and lower intermediate portions of the central base skin portion 25m, and the connecting members J3 'are formed of a plurality of back pads P2. Through the lead-in holes P2h.
　シートバック用の第１～第３連結部材Ｊ１′～Ｊ３′の部材本体Ｊａの後端部に設けられる係止片２７ｊ，２７ｋは、基本的にシート座部用の連結部材Ｊ１～Ｊ３の係止片１７ｊ，１７ｋと同様の構造を適用可能である。但し、相手側の受圧部材は、シート座部Ｓ１ではパンフレーム１１だけであったのに対し、シートバック部Ｓ２では、バックパッドＰ２の各引込み孔Ｐ２ｈ対応位置（即ち各引込み孔Ｐ２ｈとの対向部又はその近傍部、以下同様）に存する受圧板２４及びワイヤ２８となる。尚、波形スプリング２９が仮にバックパッドＰ２の引込み孔Ｐ２ｈ対応位置に配置される場合には、その波形スプリング２９に連結部材Ｊ１′～Ｊ３′を係止、連結させてもよい。 The locking pieces 27j and 27k provided at the rear end of the member body Ja of the first to third connecting members J1 'to J3' for the seat back are basically related to the connecting members J1 to J3 for the seat portion. The same structure as the stoppers 17j and 17k can be applied. However, the pressure receiving member on the other side is only the pan frame 11 in the seat portion S1, whereas the seat back portion S2 has a position corresponding to each of the drawing holes P2h of the back pad P2 (that is, a position facing the drawing hole P2h). Pressure receiving plate 24 and the wire 28 existing in the portion or in the vicinity thereof. If the wave spring 29 is located at a position corresponding to the drawing hole P2h of the back pad P2, the connecting members J1 'to J3' may be locked and connected to the wave spring 29.
　受圧板２４は、バックパッドＰ２の背面に沿うように概ね平坦に形成される基板部２４ｂと、基板部２４の左右両側より前方外向きに傾斜して立ち上がる傾斜部としての左，右側板部２４ｓとを一体に有する。そして、受圧板２４には、パンフレーム１１の貫通孔ｈ１，ｈ２及び補強用ビード１１ｂｂと同様の貫通孔ｈ１′，ｈ２′及び補強用ビード２４ｂｂが設けられ、これら貫通孔ｈ１′，ｈ２′のうち、バックパッドＰ２の引込み孔Ｐ２ｈ対応位置にある貫通孔ｈ１′，ｈ２′に連結部材Ｊ１′～Ｊ３′の係止片２７ｊ，２７ｋが係止、連結される。 The pressure receiving plate 24 has a substrate portion 24b formed substantially flat along the back surface of the back pad P2, and left and right side plate portions 24s as inclined portions rising forward and outward from both left and right sides of the substrate portion 24. And are integrally provided. The pressure receiving plate 24 is provided with through holes h1 ', h2' and a reinforcing bead 24bb similar to the through holes h1, h2 and the reinforcing bead 11bb of the pan frame 11, and the through holes h1 ', h2' are formed. The locking pieces 27j and 27k of the connecting members J1 'to J3' are locked and connected to the through holes h1 'and h2' at positions corresponding to the drawing holes P2h of the back pad P2.
　それら係止片２７ｊ，２７ｋの受圧板２４への係止、連結構造は、前述のシート座部用連結部材Ｊ１～Ｊ３の係止片１７ｊ，１７ｋの、パンフレーム１１への係止、連結構造と同様である。例えば、図１７（Ａ）には、受圧板２４の傾斜部としての側板部２４ｓに設けた貫通孔ｈ２′に第１連結部材Ｊ１′のフック状の係止片２７ｊを係止、連結させた一例が示されるが、この係止片２７ｊに代えて／又は加えて、例えばクリップ状の係止片２７ｋ（不図示）を、図１８（Ｂ）の係止片１７ｋと同様の係止態様で、受圧板２４の貫通孔ｈ１′，ｈ２′に嵌合、係止させるようにしてもよい。 The locking and connecting structures of the locking pieces 27j and 27k to the pressure receiving plate 24 are the same as the locking and connecting structures of the locking pieces 17j and 17k of the above-described seat-seat connecting members J1 to J3 to the pan frame 11. Is the same as For example, in FIG. 17A, the hook-shaped locking piece 27j of the first connecting member J1 'is locked and connected to a through hole h2' provided in the side plate portion 24s as an inclined portion of the pressure receiving plate 24. An example is shown, but instead of / in addition to this locking piece 27j, for example, a clip-shaped locking piece 27k (not shown) is provided in the same locking mode as the locking piece 17k in FIG. 18B. Alternatively, the pressure receiving plate 24 may be fitted and locked in the through holes h1 ', h2'.
　また図１７（Ｂ）には、第１連結部材Ｊ１′のフック状の係止片２７ｊをワイヤ２８に係止、連結させた一例が示される。 FIG. 17B shows an example in which the hook-shaped locking piece 27j of the first connecting member J1 'is locked and connected to the wire 28.
　而して、シートバック用の連結部材Ｊ１′～Ｊ３′の係止片２７ｊ，２７ｋとしては、シート座部用の連結部材Ｊ１～Ｊ３の係止片１７ｊ，１７ｋと同様、フックでもクリップでもよいし、或いはその他の適宜形状でもよいが、特に相手側の受圧部材が波形スプリング２９又はワイヤ２８である場合は、フック状の係止片２７ｊを用いることで係止がより容易化される。 The locking pieces 27j and 27k of the seat back connecting members J1 'to J3' may be hooks or clips, similarly to the locking pieces 17j and 17k of the seat seat connecting members J1 to J3. However, if the pressure receiving member on the other side is a wave spring 29 or a wire 28, the locking is further facilitated by using the hook-shaped locking piece 27j.
　またシートバック部Ｓ２におけるベース表皮２５と着脱容易表皮２６との間は、シートバック用の第１～第４ファスナｆ１′～ｆ４′により着脱可能に接続される。これらファスナｆ１′～ｆ４′は、シート座部Ｓ１におけるベース表皮１５と着脱容易表皮１６との間を接続する前述の座部用第１～第４ファスナｆ１～ｆ４と基本的に同様の構造であるため、これ以上の説明は省略する。 The base skin 25 and the easily removable skin 26 in the seat back portion S2 are detachably connected by first to fourth fasteners f1 'to f4' for the seat back. These fasteners f1 'to f4' have basically the same structure as the above-described first to fourth fasteners f1 to f4 for connecting between the base skin 15 and the easily removable skin 16 in the seat portion S1. Therefore, further description is omitted.
　而して、本実施形態のシートバック部Ｓ２において受圧板２４及びワイヤ２８は、バックフレームＦ２に架設されてバックパッドＰ２を支持するものであって、本発明の受圧部材の一例である。またバックパッドＰ２は本発明のパッドの一例であり、またバックフレームＦ２は本発明のフレームの一例である。 Thus, in the seat back portion S2 of the present embodiment, the pressure receiving plate 24 and the wires 28 are provided on the back frame F2 to support the back pad P2, and are an example of the pressure receiving member of the present invention. The back pad P2 is an example of the pad of the present invention, and the back frame F2 is an example of the frame of the present invention.
　次に第１実施形態の作用を説明する。座部用表皮Ｃ１のベース表皮１５については、これの外周ベース表皮部１５ｚ、中央ベース表皮部１５ｍ及び左、右ベース表皮部１５ｓの相互間を縫着すると共に、これの所定部位に第１～第３連結部材Ｊ１～Ｊ３及び第１～第４ファスナｆ１～ｆ４の内側ファスナ片ｆ１ｉ～ｆ４ｉを縫着してなるベース表皮ユニットを予め製作しておき、そのベース表皮ユニットを座部パッドＰ１の上面に被せるように置く。 Next, the operation of the first embodiment will be described. With respect to the base skin 15 of the seat skin C1, the outer base skin 15z, the center base skin 15m and the left and right base skins 15s are sewn to each other, and the first to fifth base skins are attached to predetermined portions thereof. A base skin unit formed by sewing the third connecting members J1 to J3 and the inner fastener pieces f1i to f4i of the first to fourth fasteners f1 to f4 is manufactured in advance, and the base skin unit is attached to the seat pad P1. Put it on top.
　この状態から、ベース表皮ユニットの一部表皮を、座部パッドＰ１の上面の第１～第３引込み溝ｇ１～ｇ３内に各々引込む。そして、その各引込み部分に連なる第１～第３連結部材Ｊ１～Ｊ３を引込み孔Ｐ１ｈを通して座部パッドＰ１の裏面側まで延出させ、その延出端の係止片１７ｊ，１７ｋをパンフレーム１１の、引込み孔Ｐ１ｈ対応位置に存する貫通孔ｈ１，ｈ２に係止、連結する。 か ら From this state, a part of the skin of the base skin unit is drawn into the first to third drawing grooves g1 to g3 on the upper surface of the seat pad P1. Then, the first to third connecting members J1 to J3 connected to the respective drawn-in portions are extended to the back side of the seat pad P1 through the drawn-in holes P1h, and the locking pieces 17j and 17k of the extended ends are connected to the pan frame 11. Are locked and connected to the through holes h1 and h2 located at positions corresponding to the drawing holes P1h.
　しかる後、上記したベース表皮ユニットの外周ベース表皮部１５ｚの下半部外周を、左右のサイドフレーム１０にそれの下面側に回り込むように固定（例えば接着）すると共に、座部パッド本体Ｐ１ｍの前，後端部にそれらの下面側に回り込むように固定（例えば接着）する。 Thereafter, the lower half outer periphery of the outer peripheral base skin portion 15z of the above-described base skin unit is fixed (for example, adhered) to the left and right side frames 10 so as to wrap around the lower surfaces thereof, and the front of the seat pad main body P1m. And fixed (for example, adhered) to the rear end so as to go around the lower surface thereof.
　かくして、ベース表皮１５の各ベース表皮部１５ｍ，１５ｓ，１５ｚを含むベース表皮ユニットが、座部パッドＰ１にこれを被覆するように固定される。この場合、ベース表皮１５の一部が第１～第３引込み溝ｇ１～ｇ３内に引込まれた状態は、連結部材Ｊ１～Ｊ３がパンフレーム１１に係止、連結されることで維持されるため、ベース表皮１５に長期の使用に伴う位置ずれや弛み、皺等が発生するのを効果的に防止可能である。 Thus, the base skin unit including the base skin portions 15m, 15s, 15z of the base skin 15 is fixed to the seat pad P1 so as to cover it. In this case, the state in which a part of the base skin 15 is drawn into the first to third drawing grooves g1 to g3 is maintained by the connecting members J1 to J3 being locked and connected to the pan frame 11. In addition, it is possible to effectively prevent the base skin 15 from being displaced, loosened, wrinkled, and the like due to long-term use.
　一方、座部用表皮Ｃ１の着脱容易表皮１６は、これの中央着脱容易表皮部１６ｍ及び左、右着脱容易表皮部１６ｓの相互間を縫着すると共に、これの所定部位に第１～第４ファスナｆ１～ｆ４の外側ファスナ片ｆ１ｏ～ｆ４ｏを縫着してなる着脱容易表皮ユニットを予め製作しておき、その着脱容易表皮ユニットを、座部パッドＰ１に先に固定したベース表皮１５上に被せるようにして置く。 On the other hand, the easily removable skin 16 of the seat skin C1 is sewn between the center easily removable skin 16m and the left and right easily removable skin 16s, and the first to fourth skins are attached to predetermined portions thereof. An easily detachable skin unit formed by sewing outer fastener pieces f1o to f4o of the fasteners f1 to f4 is manufactured in advance, and the detachable skin unit is put on the base skin 15 previously fixed to the seat pad P1. Put it like that.
　この状態から、第１～第３ファスナｆ１～ｆ３の外側ファスナ片ｆ１ｏ～ｆ３ｏと内側ファスナ片ｆ１ｉ～ｆ３ｉとを順次接続することで、着脱容易表皮１６の一部を第１～第３引込み溝ｇ１～ｇ３に各々引込む。しかる後に第４ファスナｆ４の外側ファスナ片ｆ４と内側ファスナ片ｆ４ｉとを接続すれば、着脱容易表皮１６をベース表皮１５に接続、固定することができる。尚、この状態から着脱容易表皮１６を取り外す場合は、上記とは逆の手順で行う。 From this state, by connecting the outer fastener pieces f1o to f3o of the first to third fasteners f1 to f3 and the inner fastener pieces f1i to f3i in order, a part of the easily attachable / detachable skin 16 is placed in the first to third recess grooves. Each is drawn into g1 to g3. If the outer fastener piece f4 of the fourth fastener f4 is then connected to the inner fastener piece f4i, the easily attachable / detachable skin 16 can be connected to the base skin 15 and fixed. When the easily removable skin 16 is removed from this state, the procedure is reversed.
　かくして、座部用表皮Ｃ１の座部パッドＰ１への取付けが完了する。またシートバック用表皮Ｃ２のベース表皮２５及び着脱容易表皮２６をバックパッドＰ２に取付ける場合も、上記した座部用表皮Ｃ１と同様の取付手順で取付作業を行うことができる。 Thus, the attachment of the seat skin C1 to the seat pad P1 is completed. Also, when the base skin 25 and the easily removable skin 26 of the seat back skin C2 are mounted on the back pad P2, the mounting operation can be performed in the same mounting procedure as the above-described seat skin C1.
　上記構造のシート座部Ｓ１及びシートバック部Ｓ２においては、座部パッドＰ１及びバックパッドＰ２に各々固定したベース表皮１５，２５に対し、着脱容易表皮１６，２６をファスナｆ１～ｆ４，ｆ１′～ｆ４′により随時、容易に着脱可能となっている。このため、着脱容易表皮１６，２６を季節に応じて色、模様、風合い等の異なる他の着脱容易表皮１６，２６に交換したり、或いは汚れた着脱容易表皮１６，２６を取り外してクリーニングしたりすることが可能であり、便利である。 In the seat seat portion S1 and the seat back portion S2 having the above structure, the easily removable skins 16, 26 are attached to the fasteners f1 to f4, f1 'to the base skins 15, 25 fixed to the seat pad P1 and the back pad P2, respectively. By f4 ', it can be easily detached at any time. For this reason, the easily removable detachable skins 16 and 26 are replaced with other easily removable detachable skins 16 and 26 having different colors, patterns, textures, and the like according to the season, or the dirty easily removable detachable skins 16 and 26 are removed and cleaned. It is possible and convenient.
　ところで本実施形態では、座部フレームＦ１及びバックフレームＦ２に、座部パッドＰ１及びバックパッドＰ２を各々支持する受圧部材としてのパンフレーム１１、受圧板２４及びワイヤ２８が架設される。そして、特にシート座部Ｓ１においては、表皮Ｃ１（より具体的にはベース表皮１５）の、座部パッドＰ１の各引込み溝ｇ１～ｇ３内への引込み部分が、引込み孔Ｐ１ｈを貫通する連結部材Ｊ１～Ｊ３を介してパンフレーム１１に係止、連結されている。これにより、引込み孔Ｐ１ｈに対し座部フレームＦ１よりも近接した位置にあるパンフレーム１１に連結部材Ｊ１～Ｊ３を無理なく連結可能となって、連結部材Ｊ１～Ｊ３の小型軽量化及び構造簡素化が達成され、それだけシート座部Ｓ１の重量軽減やコスト節減が図られる。 In the present embodiment, the pan frame 11, a pressure receiving plate 24, and a wire 28 as pressure receiving members that support the seat pad P1 and the back pad P2, respectively, are installed on the seat frame F1 and the back frame F2. In particular, in the seat seat portion S1, a connecting portion of the skin C1 (more specifically, the base skin 15) into each of the recess grooves g1 to g3 of the seat pad P1 penetrates the recess P1h. It is locked and connected to the pan frame 11 via J1 to J3. As a result, the connecting members J1 to J3 can be easily connected to the pan frame 11 located closer to the drawing hole P1h than the seat frame F1, and the connecting members J1 to J3 are reduced in size and weight and simplified in structure. Is achieved, so that the weight and cost of the seat portion S1 can be reduced.
　一方、シートバック部Ｓ２においては、表皮Ｃ２（より具体的にはベース表皮２５）の、バックパッドＰ２の各引込み溝ｇ１′～ｇ３′内への引込み部分が、引込み孔Ｐ２ｈを貫通する連結部材Ｊ１′～Ｊ３′を介して受圧板２４及びワイヤ２８に係止、連結されている。これにより、引込み孔Ｐ２ｈに対しバックフレームＦ２よりも近接した位置にある受圧板２４及びワイヤ２８に連結部材Ｊ１′～Ｊ３′を無理なく連結可能となって、連結部材Ｊ１′～Ｊ３′の小型軽量化及び構造簡素化が達成され、それだけシートバック部Ｓ２の重量軽減やコスト節減が図られる。 On the other hand, in the seat back portion S2, the connecting portions of the skin C2 (more specifically, the base skin 25) into the recesses g1 'to g3' of the back pad P2 penetrate through the recess P2h. It is locked and connected to the pressure receiving plate 24 and the wire 28 via J1 'to J3'. As a result, the connecting members J1 'to J3' can be easily connected to the pressure receiving plate 24 and the wire 28 located closer to the drawing hole P2h than the back frame F2, and the connecting members J1 'to J3' can be reduced in size. The weight reduction and the simplification of the structure are achieved, and the weight and cost of the seat back portion S2 can be reduced accordingly.
　その上、受圧部材としてのパンフレーム１１や受圧板２４は、座部パッドＰ１やバックパッドＰ２の背面に沿う（即ち背面と略平行に対面する）板状部材で構成されるため、連結部材Ｊ１～Ｊ３，Ｊ１′～Ｊ３′の、受圧部材１１，２４への取付部位を、受圧部材１１，２４の板面に沿って比較的広範囲に確保、設定可能となる。これにより、連結部材Ｊ１～Ｊ３，Ｊ１′～Ｊ３′が取付け易くなるばかりか、その取付剛性を効果的に高めることができる。 In addition, since the pan frame 11 and the pressure receiving plate 24 as the pressure receiving member are plate-shaped members along the back surface of the seat pad P1 and the back pad P2 (that is, facing substantially parallel to the back surface), the connecting member J1 is provided. It is possible to secure and set a relatively wide range of mounting portions of the pressure receiving members 11 and 24 to J3, J1 'to J3' along the plate surfaces of the pressure receiving members 11 and 24. As a result, the connecting members J1 to J3 and J1 'to J3' can be easily mounted, and the mounting rigidity can be effectively increased.
　また本実施形態のパンフレーム１１には、補強用ビード１１ｂｂが設けられており、例えば連結部材Ｊ１が、図１８（Ａ）に示す変形例のように補強用ビード１１ｂｂ（凹陥部又は隆起部）上で係止、連結されるか、或いはパンフレーム１１の、補強用ビード１１ｂｂに隣接した部位に係止、連結される構造とすることで、連結部材Ｊ１に対する取付剛性が高められる。また特に補強用ビード１１ｂｂを図示例とは逆、即ち上方に凸の隆起部とした場合（不図示）には、その補強用ビード１１ｂｂが連結部材Ｊ１に対してより近い位置となるから、連結部材Ｊ１の更なる小型化が図られるばかりか、連結部材Ｊ１が更に取付け易くなる。 Further, the pan frame 11 of the present embodiment is provided with a reinforcing bead 11bb. For example, the connecting member J1 is provided with a reinforcing bead 11bb (a concave portion or a raised portion) as in a modification shown in FIG. The rigidity of attachment to the connecting member J1 is increased by the structure of being locked and connected above, or locked and connected to a portion of the pan frame 11 adjacent to the reinforcing bead 11bb. In particular, when the reinforcing bead 11bb is the reverse of the illustrated example, that is, when it is a protruding ridge (not shown), the reinforcing bead 11bb is located closer to the connecting member J1. Not only can the member J1 be further miniaturized, but also the connecting member J1 can be more easily attached.
　また本実施形態又はその変形例のパンフレーム１１には、例えば図１６や図１８（Ｃ）（Ｄ）に示すように、相隣なる補強用ビード１１ｂｂ（凹陥部又は隆起部）の相互間において連結部材Ｊ１，Ｊ３が係止、連結される例が示される。この例によれば、補強用ビード１１ｂｂ（凹陥部又は隆起部）の補強リブ効果により剛性が高くなる特定部位（即ちパンフレーム１１の、補強用ビード１１ｂｂで挟まれた部位）が連結部材Ｊ１，Ｊ３の取付部位となり、その取付剛性の強化を図る上で有利となる。 Further, in the pan frame 11 of the present embodiment or its modified example, as shown in, for example, FIGS. 16 and 18C and 18D, the reinforcing beads 11bb (concave portions or raised portions) adjacent to each other are provided. An example in which the connecting members J1 and J3 are locked and connected is shown. According to this example, the specific portion (that is, the portion of the pan frame 11 sandwiched between the reinforcing beads 11bb) whose rigidity is increased by the reinforcing rib effect of the reinforcing beads 11bb (concave portions or raised portions) is connected to the connecting members J1 and J1. This is an attachment site for J3, which is advantageous in enhancing the attachment rigidity.
　また本実施形態又はその変形例のパンフレーム１１や受圧板２４は、これに引込み孔Ｐ１ｈ，Ｐ２ｈに対応して設けた一部の貫通孔ｈ１～ｈ３，ｈ１′，ｈ２′に、連結部材Ｊ１～Ｊ３，Ｊ１′～Ｊ３′の係止片１７ｊ，１７ｋ，２７ｊを係止、連結させている。これにより、受圧部材としてのパンフレーム１１や受圧板２４が板状部材であっても、これに連結部材Ｊ１～Ｊ３，Ｊ１′～Ｊ３′を係止させ易くなるから、取付作業性が高められる。 Further, the pan frame 11 and the pressure receiving plate 24 of the present embodiment or its modification are provided with connecting members J1 in some of the through holes h1 to h3, h1 ', h2' provided corresponding to the drawing holes P1h, P2h. The locking pieces 17j, 17k, 27j of ~ J3, J1 '~ J3' are locked and connected. Thereby, even if the pan frame 11 or the pressure receiving plate 24 as the pressure receiving member is a plate-shaped member, the connecting members J1 to J3 and J1 'to J3' can be easily locked to the plate member, thereby improving the mounting workability. .
　また図１８（Ｄ）の変形例のように連結部材Ｊ１を、受圧部材としてのパンフレーム１１に設けた貫通孔ｈ１～ｈ３を避けた位置でパンフレーム１１に係止、連結させると、パンフレーム１１の貫通孔ｈ１～ｈ３に連結部材Ｊ１～Ｊ３を係止させることに因る取付剛性低下が回避され、取付剛性強化を図る上で有利である。 When the connecting member J1 is locked and connected to the pan frame 11 at a position avoiding the through holes h1 to h3 provided in the pan frame 11 as a pressure receiving member as in the modification of FIG. A decrease in mounting rigidity caused by locking the connecting members J1 to J3 in the through holes h1 to h3 of the eleventh hole is avoided, which is advantageous in enhancing mounting rigidity.
　また図１５，図１７（Ａ）の実施形態や、図１８（Ｂ）の変形例では、パンフレーム１１や受圧板２４に、これらの基板部１１ｂ，２４ｂからパッドＰ１，Ｐ２に向かって斜めに立ち上がるよう延びる傾斜部としての左、右側板部１１ｓ，２４ｓが設けられ、その側板部１１ｓ，２４ｓに連結部材Ｊ１，Ｊ２，Ｊ１′，Ｊ２′が係止、連結される。これにより、その連結部位をパッド厚さ方向で座部パッドＰ１やバックパッドＰ２に近づけることができ、それだけ連結部材Ｊ１，Ｊ２，Ｊ１′，Ｊ２′の小型軽量化が図られる。 In the embodiment of FIGS. 15 and 17A and the modification of FIG. 18B, the pan frame 11 and the pressure receiving plate 24 are obliquely directed from these substrate portions 11b and 24b toward the pads P1 and P2. Left and right side plates 11s and 24s are provided as inclined portions extending so as to rise, and connecting members J1, J2, J1 'and J2' are locked and connected to the side plates 11s and 24s. As a result, the connecting portion can be made closer to the seat pad P1 or the back pad P2 in the pad thickness direction, so that the connecting members J1, J2, J1 ', J2' can be reduced in size and weight.
　また図１６の実施形態や、図１８（Ａ）（Ｃ）（Ｄ）の変形例では、パンフレーム１１に、一部の連結部材Ｊ１，Ｊ２がパンフレーム１１の側板部１１ｓ（傾斜部）を避けた位置でパンフレーム１１に連結されている。この構造では、側板部１１ｓの傾斜に起因した、連結部材Ｊ１，Ｊ２の取付作業性の低下が回避される。 In the embodiment of FIG. 16 and the modified examples of FIGS. 18 (A), (C), and (D), some connecting members J1 and J2 are attached to the side plate 11s (inclined portion) of the pan frame 11. It is connected to the pan frame 11 at the avoiding position. In this structure, a decrease in workability of attaching the connecting members J1 and J2 due to the inclination of the side plate portion 11s is avoided.
　また本実施形態のシートバック部Ｓ２において、図１４に示すように、受圧部材としての受圧板２４は、バックフレームＦ２に架設した複数のワイヤ２８間に支持され、連結部材Ｊ１′～Ｊ３′は、図１７（Ａ）に示すようにワイヤ２８及び波形スプリング２９を避けた位置で受圧板２４に係止、連結されている。これにより、ワイヤ２８及び波形スプリング２９の位置に影響されずに連結部材Ｊ１′～Ｊ３′を受圧板２４に容易に取付けることができ、連結部材Ｊ１′～Ｊ３′の取付作業性が良好である。 In the seat back portion S2 of the present embodiment, as shown in FIG. 14, a pressure receiving plate 24 as a pressure receiving member is supported between a plurality of wires 28 provided on a back frame F2, and the connecting members J1 'to J3' As shown in FIG. 17 (A), it is locked and connected to the pressure receiving plate 24 at a position avoiding the wire 28 and the wave spring 29. Thus, the connecting members J1 'to J3' can be easily attached to the pressure receiving plate 24 without being affected by the positions of the wire 28 and the wave spring 29, and the workability of attaching the connecting members J1 'to J3' is good. .
　また本実施形態のシートバック部Ｓ２において、図１７（Ｂ）に示すように、一部の連結部材Ｊ１′，Ｊ２′はワイヤ２８に係止、連結されている。即ち、受圧板２４を支持すべくバックフレームＦ２に架設したワイヤ２８が受圧部材を兼ねていて、連結部材Ｊ１′，Ｊ２′に直結されるため、連結構造の更なる簡素化が図られると共に、連結部材Ｊ１の取付作業性が良好である。 In the seat back portion S2 of the present embodiment, as shown in FIG. 17B, some connecting members J1 'and J2' are locked and connected to the wire 28. That is, since the wire 28 laid on the back frame F2 to support the pressure receiving plate 24 also serves as a pressure receiving member and is directly connected to the connecting members J1 'and J2', further simplifying the connecting structure is achieved. The mounting workability of the connecting member J1 is good.
　また図１９，図２０には、本発明の第２実施形態が示される。第１実施形態のシート座部Ｓ１では、受圧部材の一例であるパンフレーム１１が、座部パッドＰ１の下面を略全域に亘り受容、支持可能な大型の皿状体で構成されるが、第２実施形態では、図１９に例示したようにパンフレーム１１′が座部パッドＰ１の下面前半部だけを支持可能な比較的小型の皿状体で構成されていて、座部フレームＦ１の左右のサイドフレーム１０に固定（実施形態ではビス止め）される。このパンフレーム１１′と後部クロスメンバ１２との間には、左右方向に間隔をおいて並ぶ複数の波形スプリング１３…が張架、支持され、それら波形スプリング１３…により座部パッドＰ１の後半部下面が弾力的に支持される。 FIGS. 19 and 20 show a second embodiment of the present invention. In the seat seat portion S1 of the first embodiment, the pan frame 11, which is an example of the pressure receiving member, is formed of a large dish-like body capable of receiving and supporting the lower surface of the seat pad P1 over substantially the entire area. In the second embodiment, as illustrated in FIG. 19, the pan frame 11 ′ is formed of a relatively small dish-like body that can support only the lower half of the seat pad P <b> 1, and the left and right sides of the seat frame F <b> 1. It is fixed to the side frame 10 (with screws in the embodiment). Between the pan frame 11 'and the rear cross member 12, a plurality of wavy springs 13 arranged in a horizontal direction at intervals are stretched and supported, and the wavy springs 13 are used to support the rear half of the seat pad P1. The lower surface is elastically supported.
　また相隣なる波形スプリング１３には、その相互間を連結して座部パッドＰ１からの荷重を支持、分散させる複数の受圧板１４，１４′が係止される。受圧板１４，１４′は、相隣なる少なくとも２本の波形スプリング１３間に跨がるように延びる帯板状に形成される。 Further, a plurality of pressure receiving plates 14 and 14 ′ for connecting and connecting the adjacent wave springs 13 and supporting and dispersing the load from the seat pad P <b> 1 are locked. The pressure receiving plates 14 and 14 ′ are formed in a strip shape extending so as to straddle between at least two adjacent wave springs 13.
　第２実施形態の座部パッドＰ１の構造は、第１実施形態のそれと同様である。そして、その座部パッドＰ１の第１～第３引込み溝ｇ１～ｇ３に引き込まれた座部用表皮Ｃ１に連結されて引込み孔Ｐ１ｈ…を貫通する第１～第３連結部材Ｊ１～Ｊ３は、引込み孔Ｐ１ｈ…と対応する位置にあるパンフレーム１１′、波形スプリング１３及び受圧板１４，１４′に係止、連結される。その係止、連結構造は、第１実施形態の座部用第１～第３連結部材Ｊ１～Ｊ３とパンフレーム１１（受圧部材）との間の係止、連結構造と同様である。 構造 The structure of the seat pad P1 of the second embodiment is the same as that of the first embodiment. The first to third connecting members J1 to J3 which are connected to the seat skin C1 drawn into the first to third drawing grooves g1 to g3 of the seat pad P1 and penetrate through the drawing holes P1h. Are locked and connected to the pan frame 11 ', the wave spring 13, and the pressure receiving plates 14, 14' at positions corresponding to the drawing holes P1h. The locking and connecting structure is the same as the locking and connecting structure between the seat frame first to third connecting members J1 to J3 and the pan frame 11 (pressure receiving member) of the first embodiment.
　例えば、図２０（Ｅ）には、第１，第２連結部材Ｊ１，Ｊ２におけるクリップ状の係止片１７ｋを受圧板１４の貫通孔ｈ１に嵌合、係止させた一例が示され、また図２０（Ｆ）には、第１，第２連結部材Ｊ１，Ｊ２におけるフック状の係止片１７ｊを波形スプリング１３に係止させた一例が示される。 For example, FIG. 20E shows an example in which the clip-like locking pieces 17k of the first and second connecting members J1 and J2 are fitted and locked in the through holes h1 of the pressure receiving plate 14, and FIG. 20F shows an example in which the hook-shaped locking pieces 17j of the first and second connecting members J1 and J2 are locked to the waveform spring 13.
　尚、図２０（Ｅ）（Ｆ）以外に断面表示はないが、一部の第１，第２連結部材Ｊ１，Ｊ２は、パンフレーム１１′の引込み孔Ｐ１ｈ対応位置に設けた貫通孔ｈ１に係止、連結される。また第３連結部材Ｊ３は、図示はしないが引込み孔Ｐ１ｈ対応位置において受圧板１４′の貫通孔ｈ１及び／又は波形スプリング１３に係止、連結される。 Although there are no cross-sectional views other than FIGS. 20 (E) and (F), some of the first and second connecting members J1 and J2 are provided in through holes h1 provided at positions corresponding to the drawing holes P1h of the pan frame 11 ′. Locked and connected. Although not shown, the third connecting member J3 is locked and connected to the through hole h1 of the pressure receiving plate 14 'and / or the wave spring 13 at a position corresponding to the drawing hole P1h.
　而して、第２実施形態において、受圧板１４，１４′、波形スプリング１３及びパンフレーム１１′は、本発明の受圧部材の一例であり、また座部フレームＦ１は、本発明のフレームの一例である。 Thus, in the second embodiment, the pressure receiving plates 14, 14 ', the wave spring 13, and the pan frame 11' are examples of the pressure receiving member of the present invention, and the seat frame F1 is an example of the frame of the present invention. It is.
　そして、第２実施形態においても、第１実施形態と基本的に同様の作用効果を達成可能である。 Also, in the second embodiment, basically the same operation and effect as in the first embodiment can be achieved.
　更に第２実施形態のシート座部Ｓ１において受圧部材としての受圧板１４，１４′は、座部フレームＦ１に架設した複数の波形スプリング１３間に支持され、一部の連結部材Ｊ１～Ｊ３は、波形スプリング１３を避けた位置で受圧板１４，１４′に係止、連結されている。これにより、波形スプリング１３の位置に影響されずに一部の連結部材Ｊ１～Ｊ３を受圧板１４，１４′に容易に取付けることができるため、連結部材Ｊ１～Ｊ３の取付作業性が良好である。 Further, in the seat portion S1 of the second embodiment, the pressure receiving plates 14, 14 'as pressure receiving members are supported between a plurality of waveform springs 13 provided on the seat portion frame F1, and some of the connecting members J1 to J3 are It is locked and connected to the pressure receiving plates 14, 14 'at a position avoiding the wave spring 13. Thus, some of the connecting members J1 to J3 can be easily attached to the pressure receiving plates 14, 14 'without being affected by the position of the wave spring 13, so that the workability of attaching the connecting members J1 to J3 is good. .
　しかもこの第２実施形態では、座部パッドＰ１を支持すべく座部フレームＦ１に架設した波形スプリング１３の一部が受圧部材を兼ねていて、一部の連結部材Ｊ１～Ｊ３に直結されている。これにより、連結構造の更なる簡素化が図られると共に、連結部材Ｊ１～Ｊ３の取付作業性が良好となる。 Moreover, in the second embodiment, a part of the wave spring 13 provided on the seat frame F1 to support the seat pad P1 also serves as a pressure receiving member, and is directly connected to some of the connecting members J1 to J3. . As a result, the connection structure is further simplified, and the workability of attaching the connection members J1 to J3 is improved.
　以上、本発明の実施形態について説明したが、本発明は、実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々の設計変更が可能である。 Although the embodiment of the present invention has been described above, the present invention is not limited to the embodiment, and various design changes can be made without departing from the gist of the present invention.
　例えば、前記実施形態では、乗物用シートとして自動車用シートＳを例示したが、本発明では、自動車以外の車両（例えば鉄道車両）に用いられるシートや、車両以外の乗物（例えば船舶、航空機）に用いられるシートにも適用可能である。 For example, in the above embodiment, the vehicle seat S is illustrated as the vehicle seat. However, in the present invention, the vehicle seat S is used for a vehicle other than an automobile (for example, a railway vehicle) or a vehicle other than a vehicle (for example, a ship or an aircraft). It is applicable to the sheet used.
　また前記実施形態では、シート用送風空調機能を持たない備えた乗物用シートを例示したが、本発明は、シートのパッド（例えば座部パッド）に設けた通気路と、送風装置（例えば送風ファン）と、それら通気路及び送風装置間を接続するダクトとを備えてシート用送風空調機能を発揮する乗物用シート（例えば国際公開WO2018/061602A2公報、特開2005-287532号公報等を参照）にも適用可能である。この場合、本発明に係る引込み溝ｇ１～ｇ３，ｇ１′～ｇ３′、引込み孔Ｐ１ｈ，Ｐｈ２、連結部材Ｊ１～Ｊ３，Ｊ１′～Ｊ３′、受圧部材（パンフレーム１１，１１′、受圧板１４，１４′，２４、波形スプリング１３，２９、ワイヤ２８）は、シート座部Ｓ１又はシートバック部Ｓ２に設けられる上記した通気路、ダクト及び送風装置を避けるように配設される。 Further, in the above-described embodiment, the vehicle seat having no air-conditioning function for the seat is exemplified. ) And a duct for connecting the ventilation path and the blower, and a vehicle seat (see, for example, International Publication No. Is also applicable. In this case, the drawing grooves g1 to g3, g1 'to g3', the drawing holes P1h, Ph2, the connecting members J1 to J3, J1 'to J3', the pressure receiving members (the pan frames 11, 11 ', the pressure receiving plate 14). , 14 ′, 24, the wave springs 13, 29, and the wire 28) are disposed so as to avoid the above-described ventilation paths, ducts, and blowers provided in the seat portion S <b> 1 or the seatback portion S <b> 2.
　また前記実施形態では、座部用表皮Ｃ１及びシートバック用表皮Ｃ２を、ベース表皮１５，２５の少なくとも一部が着脱容易表皮１６，２６と重なり合う二層構造としたものを示したが、本発明では、ベース表皮と着脱容易表皮とが重なり合わない一層構造（例えば日本特開2016-97275号公報を参照）としてもよい。尚、その一層構造の場合においても、表皮の引込み構造は、前記実施形態と同様の構造とされる。 In the above-described embodiment, the seat skin C1 and the seat back skin C2 have a two-layer structure in which at least a part of the base skins 15 and 25 overlap the easily removable skins 16 and 26. In this case, a single-layer structure in which the base skin and the easily removable skin do not overlap (for example, see Japanese Patent Application Laid-Open No. 2016-97275) may be used. In addition, even in the case of the one-layer structure, the retracting structure of the skin is the same as that of the above embodiment.
　また、前記実施形態では、座部用表皮Ｃ１及びシートバック用表皮Ｃ２が、ベース表皮１５，２５に対し接続具（ファスナｆ１～ｆ４，ｆ１′～ｆ４′）を介して着脱可能に接続される着脱容易表皮１６，２６を含むものを示したが、本発明は、各々の表皮Ｃ１，Ｃ２がベース表皮のみから成るもの（即ち着脱容易表皮を持たないもの）にも適用可能である。 In the embodiment, the seat skin C1 and the seat back skin C2 are detachably connected to the base skins 15, 25 via connectors (fasteners f1 to f4, f1 'to f4'). Although the one including the easily removable skins 16 and 26 has been described, the present invention is also applicable to the case where each of the skins C1 and C2 is composed of only the base skin (that is, one having no easily removable skin).
　また前記実施形態では、座部用表皮Ｃ１及びシートバック用表皮Ｃ２をそれぞれ構成するベース表皮１５，２５及び着脱容易表皮１６，２６の各々を薄皮状の一層構造としたものを示したが、本発明では、ベース表皮１５，２５及び着脱容易表皮１６，２６のうちの少なくとも一方の表皮を、互いに重なり合う少なくとも２枚の外皮の相互間に薄肉のクッションシート材を挟んだ多層構造（例えば実公平6-14628号公報を参照）の表皮としてもよい。 In the above embodiment, the base skins 15, 25 and the detachable skins 16, 26, which constitute the seat skin C1 and the seat back skin C2, respectively, have a thin skin-like single-layer structure. According to the present invention, at least one of the base skins 15, 25 and the easily removable skins 16, 26 is provided with a multilayer structure (for example, a real non-woven fabric) in which a thin cushion sheet material is sandwiched between at least two outer skins overlapping each other. -14628).
　また前記実施形態では、各連結部材Ｊ１～Ｊ３，Ｊ１′～Ｊ３′の受圧部材（パンフレーム１１，１１′、受圧板１４，２４、波形スプリング１３，２９、ワイヤ２８）への連結部位が、座部パッドＰ１又はバックパッドＰ２の引込み孔Ｐ１ｈ，Ｐ２ｈ対応位置（即ち各引込み孔Ｐ１ｈ，Ｐ２ｈとの対向部又はその近傍部）であるものを示したが、本発明において、連結部材Ｊ１～Ｊ３，Ｊ１′～Ｊ３′の受圧部材への連結部位は、上記引込み孔Ｐ１ｈ，Ｐ２ｈ対応位置に限定されず、例えば、引込み孔Ｐ１ｈ，Ｐ２ｈから多少離れていても、少なくとも座部フレームＦ１又はバックフレームＦ２よりも近い部位であればよい。 In the above-described embodiment, the connecting portions of the connecting members J1 to J3, J1 'to J3' to the pressure receiving members (pan frames 11, 11 ', pressure receiving plates 14, 24, wave springs 13, 29, and wires 28) are as follows. Although the position corresponding to the recessed holes P1h and P2h of the seat pad P1 or the back pad P2 (that is, the portion facing the recessed holes P1h and P2h or the vicinity thereof) is shown, in the present invention, the connecting members J1 to J3 are provided. , J1'-J3 'to the pressure receiving member are not limited to the positions corresponding to the above-described drawing holes P1h, P2h. What is necessary is just a site | part near F2.
　また前記実施形態では、各連結部材Ｊ１～Ｊ３，Ｊ１′～Ｊ３′の部材本体Ｊａを剛性のある帯板材より構成したものを示したが、本発明の連結部材の部材本体Ｊａは、実施形態に限定されず、係止片１７ｊ，１７ｋ，２７ｊ，２７ｋと共に引込み孔Ｐ１ｈ，Ｐ２ｈを通過可能な形状であればよい。例えば、部材本体Ｊａを棒状材としてもよく、或いはまた、必要な連結強度を確保可能であれば部材本体Ｊａを可撓性材料より構成するようにしてもよい。 Further, in the above-described embodiment, the member body Ja of each of the connecting members J1 to J3, J1 'to J3' has been shown to be formed of a rigid band plate material. The shape is not limited to this, and any shape may be used as long as it can pass through the drawing holes P1h and P2h together with the locking pieces 17j, 17k, 27j, and 27k. For example, the member body Ja may be a rod-shaped material, or the member body Ja may be made of a flexible material if necessary connection strength can be ensured.
　また、前記実施形態では、各連結部材Ｊ１～Ｊ３，Ｊ１′～Ｊ３′を、表皮Ｃ１，Ｃ２（より具体的にはベース表皮１５，２５）の引込み溝ｇ１～ｇ３，ｇ１′～ｇ３′内への引込み部分に直接結合（縫着）したものを示したが、その引込み部分に取付けられて引込み溝ｇ１～ｇ３，ｇ１′～ｇ３′の長手方向に延びる縁補強部材（例えば、ワイヤ）を介して、該引込み部分に各連結部材Ｊ１～Ｊ３，Ｊ１′～Ｊ３′を結合するようにしてもよい。 In the above embodiment, the connecting members J1 to J3, J1 'to J3' are connected to the recessed grooves g1 to g3, g1 'to g3' of the skins C1, C2 (more specifically, the base skins 15, 25). Although it is shown that the edge reinforcing member (for example, a wire) is directly connected (sewn) to the drawn-in portion, it is attached to the drawn-in portion and extends in the longitudinal direction of the drawn-in grooves g1 to g3, g1 'to g3'. The connecting members J1 to J3 and J1 'to J3' may be connected to the retracted portion via the connecting portion.

Claims (10)

  1. 　パッド（Ｐ２）と、前記パッド（Ｐ２）を裏面側から支持するフレーム（２０）と、前記パッド（Ｐ２）に固定されて該パッド（Ｐ２）の表面を覆う第１表皮（２５）と、前記第１表皮（２５）に接続具（ｆ１～ｆ４）を介して着脱可能に接続されて前記パッド（Ｐ２）の表面の一部を直接又は前記第１表皮（２５）を介して覆う第２表皮（２６）とを備えた乗物用シートにおいて、
    　前記フレーム（２０）には、前記パッド（Ｐ２）の表面より外方に展開可能なエアバッグ（５２）を収納するエアバッグモジュール（ＡＭ）が設けられ、
    　前記第１，第２表皮（２５，２６）のうち少なくとも一方の表皮には、前記エアバッグ（５２）の前記展開を許容するように破断可能な破断許容部（ｍ１）が前記接続具（ｆ１～ｆ４）から間隔をおいて配設されることを特徴とする乗物用シート。     A pad (P2), a frame (20) supporting the pad (P2) from the back side, a first skin (25) fixed to the pad (P2) and covering the surface of the pad (P2); A second skin that is detachably connected to the first skin (25) through connectors (f1 to f4) and covers a part of the surface of the pad (P2) directly or through the first skin (25). (26) In the vehicle seat provided with:
    The frame (20) is provided with an airbag module (AM) that houses an airbag (52) that can be deployed outside the surface of the pad (P2),
    At least one of the first and second skins (25, 26) has a breakable portion (m1) that can be broken so as to allow the deployment of the airbag (52) with the connection tool (f1). A vehicle seat, which is disposed at an interval from f4).
  2. 　前記破断許容部（ｍ１）は、前記第１表皮（２５）に設けられることを特徴とする、請求項１に記載の乗物用シート。 The vehicle seat according to claim 1, wherein the breakable portion (m1) is provided on the first skin (25).
  3. 　前記第１表皮（２５）の上に前記第２表皮（２６）と重なり合う領域が存在しており、前記破断許容部（ｍ１）が前記領域の外で前記第１表皮（２５）に設けられることを特徴とする、請求項２に記載の乗物用シート。 An area overlapping the second skin (26) is present on the first skin (25), and the breakable portion (m1) is provided on the first skin (25) outside the area. The vehicle seat according to claim 2, characterized in that:
  4. 　前記第１表皮（２５）の上に前記第２表皮（２６）と重なり合う領域が存在しており、前記領域において第１の前記破断許容部（ｍ１）が前記第１表皮（２５）に設けられると共に、該第１の破断許容部（ｍ１）と重なり合う第２の破断許容部（ｍ２）が前記第２表皮（２６）に設けられることを特徴とする、請求項２に記載の乗物用シート。 There is an area on the first skin (25) that overlaps with the second skin (26), and the first breakable portion (m1) is provided in the first skin (25) in the area. The vehicle seat according to claim 2, wherein a second breakable portion (m2) overlapping the first breakable portion (m1) is provided on the second skin (26).
  5. 　前記パッド及び前記フレームは、乗員の背中を支持するシートバック部（Ｓ２）におけるバックパッド（Ｐ２）及びサイドフレーム（２０）であり、
    　前記破断許容部（ｍ１）は、前記エアバッグモジュール（ＡＭ）の周辺に位置する特定の前記接続具（ｆ４）から、前記シートバック部（Ｓ２）の前後方向に間隔をおいて配置されることを特徴とする、請求項１又は２に記載の乗物用シート。     The pad and the frame are a back pad (P2) and a side frame (20) in a seat back portion (S2) that supports the back of an occupant;
    The break allowance part (m1) is arranged at a distance from the specific connector (f4) located around the airbag module (AM) in the front-rear direction of the seat back part (S2). The vehicle seat according to claim 1, wherein:
  6. 　前記第１表皮（２５）又は前記第２表皮（２６）の、前記エアバッグモジュール（ＡＭ）の周辺に位置する特定の前記接続具（ｆ４）と隣接する部分には、展開時の前記エアバッグ（５２）と該特定の接続具（ｆ４）との接触を抑制する接触抑制部（６１）が、該特定の接続具（ｆ４）に沿うように設けられることを特徴とする、請求項２に記載の乗物用シート。 The portion of the first skin (25) or the second skin (26) adjacent to the specific connector (f4) located around the airbag module (AM) is provided with the airbag when deployed. The contact suppressing part (61) which suppresses contact between the (52) and the specific connector (f4) is provided along the specific connector (f4). Vehicle seat as described.
  7. 　前記接触抑制部（６１）は、該接触抑制部（６１）が設けられる表皮（２５）の表面より外方に張出した外方張出部（６１）で構成され、前記外方張出部（６１）の張出高さは、前記特定の接続具（ｆ４）の張出高さよりも高いことを特徴とする、請求項６に記載の乗物用シート。 The contact suppressing portion (61) includes an outwardly extending portion (61) extending outward from the surface of the skin (25) on which the contact suppressing portion (61) is provided. Vehicle seat according to claim 6, characterized in that the overhang height of (61) is higher than the overhang height of the specific connector (f4).
  8. 　前記パッド（Ｐ２）は、前記第１，第２表皮（２５，２６）のうち少なくとも前記第１表皮（２５）の一部を引き込むための引込み溝（ｇ１，ｇ２）と、前記引込み溝（ｇ１，ｇ２）の底部に一端が開口すると共に前記パッド（Ｐ２）の裏面に他端が開口する引込み孔（Ｐ２ｈ）とを有し、
    　前記第１表皮（２５）の、前記引込み溝（ｇ１，ｇ２）内への引込み部分が、前記引込み孔（Ｐ２ｈ）を貫通する連結部材（Ｊ１，Ｊ２）の一端部に結合され、
    　前記連結部材（Ｊ１，Ｊ２）の他端部が前記フレーム（２０）の内側面に直接又は支持部材（４１）を介して連結されると共に、その連結部（ｗ）を避けるようにして前記エアバッグモジュール（ＡＭ）が前記フレーム（２０）に取付けられることを特徴とする、請求項１～７の何れか１項に記載の乗物用シート。     The pad (P2) includes a recess groove (g1, g2) for retracting at least a part of the first skin (25) of the first and second skins (25, 26), and the recess groove (g1). , G2) has a lead-in hole (P2h) having one end opened at the bottom and the other end opened at the back surface of the pad (P2).
    A part of the first skin (25) drawn into the drawing groove (g1, g2) is connected to one end of a connecting member (J1, J2) penetrating the drawing hole (P2h),
    The other end of the connecting member (J1, J2) is connected to the inner surface of the frame (20) directly or via a support member (41), and the air is prevented so as to avoid the connecting portion (w). Vehicle seat according to any of the preceding claims, characterized in that a bag module (AM) is mounted on the frame (20).
  9. 　前記エアバッグモジュール（ＡＭ）の、前記フレーム（２０）に取付けられる被取付部（５０ｍ）は、前記フレーム（２０）を挟んで前記連結部（ｗ）とは反対側に配置されることを特徴とする、請求項８に記載の乗物用シート。 The attached portion (50m) of the airbag module (AM) attached to the frame (20) is disposed on the opposite side of the frame (20) from the connecting portion (w). The vehicle seat according to claim 8, wherein:
  10. 　前記フレーム（２０）の、前記被取付部（５０ｍ）と前記連結部（ｗ）とに挟まれた板状の壁部分（２０ｂ）は、該壁部分（２０ｂ）の厚さ方向一方側に凹んだ凹曲部（２０ｂａ）を有することを特徴とする、請求項９に記載の乗物用シート。 A plate-like wall portion (20b) of the frame (20) sandwiched between the attached portion (50m) and the connecting portion (w) is recessed on one side in the thickness direction of the wall portion (20b). Vehicle seat according to claim 9, characterized in that it has a concave bend (20ba).
PCT/JP2019/031744 2018-08-09 2019-08-09 Vehicle seat WO2020032277A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002079901A (en) * 2000-09-06 2002-03-19 Honda Motor Co Ltd Air bag device for side impact
JP2011254934A (en) * 2010-06-08 2011-12-22 Toyota Boshoku Corp Vehicle seat
JP2016107762A (en) * 2014-12-04 2016-06-20 トヨタ紡織株式会社 Cover-removable vehicle seat
JP2018007717A (en) * 2016-07-11 2018-01-18 株式会社タチエス Pull-in structure of seat cover

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002079901A (en) * 2000-09-06 2002-03-19 Honda Motor Co Ltd Air bag device for side impact
JP2011254934A (en) * 2010-06-08 2011-12-22 Toyota Boshoku Corp Vehicle seat
JP2016107762A (en) * 2014-12-04 2016-06-20 トヨタ紡織株式会社 Cover-removable vehicle seat
JP2018007717A (en) * 2016-07-11 2018-01-18 株式会社タチエス Pull-in structure of seat cover

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