JP6507929B2 - Vehicle seat - Google Patents

Vehicle seat Download PDF

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Publication number
JP6507929B2
JP6507929B2 JP2015160901A JP2015160901A JP6507929B2 JP 6507929 B2 JP6507929 B2 JP 6507929B2 JP 2015160901 A JP2015160901 A JP 2015160901A JP 2015160901 A JP2015160901 A JP 2015160901A JP 6507929 B2 JP6507929 B2 JP 6507929B2
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Prior art keywords
plate
seat
nut
frame
woven fabric
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JP2015160901A
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JP2017039341A (en
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裕文 渡邉
裕文 渡邉
田中　昌巳
昌巳 田中
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Toyota Boshoku Corp
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Toyota Boshoku Corp
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Priority to JP2015160901A priority Critical patent/JP6507929B2/en
Priority to DE102016214508.8A priority patent/DE102016214508A1/en
Publication of JP2017039341A publication Critical patent/JP2017039341A/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
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable
    • 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
    • B60N2/682—Joining means
    • 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
    • B60N2/686—Panel like structures

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

Description

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

複数枚の織物、編物又は不織布が積層されたものを強化材とした繊維強化樹脂製のシートフレームを備えている乗物用シートが知られている。特許文献１に開示された発明では、シェルタイプのバックフレームであるバックパンが、クッションフレームに取付けられたアッパアームに対してボルト＆ナットにより締着されている。   There is known a vehicle seat provided with a seat frame made of a fiber reinforced resin using a plurality of woven fabrics, knitted fabrics or non-woven fabrics as a reinforcement. In the invention disclosed in Patent Document 1, a back pan, which is a shell type back frame, is fastened by an bolt and a nut to an upper arm attached to a cushion frame.

特開２０１５−９８２９９号公報JP, 2015-98299, A

特許文献１に開示された発明において、ボルト＆ナットで締着する前に、ボルト又はナットをバックパンにあらかじめ取付けておく構造も考えられる。このようなボルト又はナットは板状部を備えており、当該板状部に接着剤が塗布されてバックパンの表面部に接着されることで、バックパンに取付けられる。このため、バックパンの成形後に別途接着工程が必要であり、製造コストの増大を招くおそれがあった。また、板状部のバックパンに対する取付け強度は、板状部がバックパンに押し付けられる方向の荷重に対しては、板状部を強化材が入れられた繊維強化樹脂によって支持されるため強いが、上記方向の反対方向の荷重に対しては、板状部を接着剤の凝集力によって保持するにとどまるため弱い。すなわち、板状部のバックパンに対する厚み方向の取付け強度は剥離方向に弱く、当該剥離強度を確保するために接着剤による接着工程の厳密な管理が必要であり、製造コストの増大を招くおそれがあった。   In the invention disclosed in Patent Document 1, a structure in which a bolt or a nut is previously attached to a back pan before fastening with a bolt and a nut is also conceivable. Such a bolt or nut is provided with a plate-like portion, and the plate-like portion is applied with an adhesive and adhered to the surface portion of the back pan, thereby being attached to the back pan. For this reason, a bonding process is separately required after the forming of the back pan, which may lead to an increase in manufacturing cost. Also, the attachment strength of the plate-like portion to the back pan is strong against the load in the direction in which the plate-like portion is pressed against the back pan, since the plate-like portion is supported by the fiber reinforced resin containing the reinforcing material. Against the load in the direction opposite to the above direction, the plate-like portion is weak because it is held by the cohesive force of the adhesive. That is, the attachment strength of the plate-like portion to the back pan in the thickness direction is weak in the peeling direction, and strict control of the bonding process with the adhesive is necessary to secure the peeling strength, which may increase the manufacturing cost. there were.

このような問題点を解決するために、本発明の課題は、織物、編物又は不織布が積層されたものを強化材とした繊維強化樹脂製のシートフレームを備えた乗物用シートにおいて、シートフレームに対して連結部材を簡便な工程で、剥離強度を確保しながら取付けることができる乗物用シートを提供することである。   In order to solve such problems, it is an object of the present invention to provide a vehicle seat provided with a fiber reinforced resin seat frame using a fabric, a knitted fabric or a non-woven fabric as a reinforcement. It is another object of the present invention to provide a vehicle seat which can be mounted while securing peel strength in a simple process.

本発明の第１発明は、乗物用シートであって、複数枚の織物、編物又は不織布が積層されたものを強化材とした繊維強化樹脂製のシートフレームと、該シートフレームに対して他部材を連結する連結部材と、を備えており、該連結部材は板状部を備え、該板状部がその厚み方向に前記複数枚の織物、編物又は不織布が積層されるように該複数枚の織物、編物又は不織布の層間に挟み入れられた状態で前記シートフレームに一体化されていることを特徴とする。   A first invention of the present invention is a vehicle seat, which is a sheet frame made of a fiber reinforced resin using as a reinforcing material a laminate of a plurality of woven fabrics, knitted fabrics or non-woven fabrics, and other members with respect to the seat frame. And the connecting member includes a plate-like portion, and the plate-like portion includes the plurality of woven fabric, knitted fabric or non-woven fabric in the thickness direction. It is characterized in that it is integrated with the seat frame in a state of being sandwiched between layers of a woven fabric, a knitted fabric or a non-woven fabric.

第１発明によれば、複数枚の織物、編物又は不織布が積層されたものを強化材とした繊維強化樹脂製のシートフレームに対して、連結部材の板状部が、複数枚の織物、編物又は不織布の層間に挟み入れられた状態で一体化されることで取付けられる。これによって、シートフレームの成形と同時に板状部がシートフレームに取付けられ、シートフレームの成形後に板状部を別工程で取付ける作業が不要となる。また、複数枚の織物、編物又は不織布が積層されたものの一部が、板状部を厚み方向両側から支持する。このため、連結部材に対して板状部の厚み方向のどちら側の方向から荷重が印加された場合であっても、板状部を強化材が入れられた繊維強化樹脂によって支持することができる。   According to the first aspect of the present invention, the sheet-like portion of the connecting member has a plurality of woven or knitted fabrics, as opposed to the sheet frame made of fiber reinforced resin using the plurality of woven or knitted fabrics or non-woven fabrics as a reinforcement. Alternatively, it is attached by being integrated in a state of being sandwiched between layers of non-woven fabric. As a result, the plate-like portion is attached to the seat frame simultaneously with the formation of the seat frame, and the work of attaching the plate-like portion in a separate process after the formation of the seat frame becomes unnecessary. Moreover, a part of what laminated | stacked several fabric, knitted fabric, or a nonwoven fabric supports a plate-like-part from the thickness direction both sides. Therefore, the plate-like portion can be supported by the fiber-reinforced resin in which the reinforcing material is inserted, even when a load is applied to the connecting member from which side in the thickness direction of the plate-like portion. .

本発明の第２発明は、第１発明において、前記板状部の厚み方向に垂直な面の少なくとも１つには、溝部が設けられていることを特徴とする。   According to a second invention of the present invention, in the first invention, at least one of the surfaces perpendicular to the thickness direction of the plate-like portion is provided with a groove.

第２発明によれば、シートフレームの成形時に流動状態のマトリクス樹脂が溝部内を流れることができるため、流動状態のマトリクス樹脂が板状部に沿って流動し易くなり、板状部周りにボイド等の成形不良が発生し難くなる。また、シートフレームの成形時に流動状態のマトリクス樹脂が溝部内に浸入した状態で固化するため、板状部のシートフレームに対する面内方向のせん断強度を高めることができる。   According to the second aspect of the present invention, since the matrix resin in a fluid state can flow in the groove during molding of the sheet frame, the matrix resin in the fluid state can easily flow along the plate-like portion, and voids around the plate-like portion. And other molding defects are less likely to occur. In addition, since the matrix resin in a fluid state is solidified in a state in which the matrix resin in a fluidized state infiltrates into the groove at the time of molding the seat frame, the shear strength in the in-plane direction of the plate portion with respect to the seat frame can be enhanced.

本発明の第３発明は、第２発明において、前記連結部材は、ねじ部を備えた本体部に対して前記板状部が前記ねじ部の軸の延びる方向に対して垂直に延びる鍔状に形成されているとともに、前記板状部が前記シートフレームに一体化された状態において前記本体部が前記シートフレームを貫通し、前記ねじ部に対して螺合可能な締結部材が締結されることにより前記シートフレームに対して前記他部材が連結されるように構成されており、前記溝部は、前記ねじ部の軸を中心に放射状に複数本配設されていることを特徴とする。   According to a third aspect of the present invention, in the second aspect, the connecting member is in the form of a hook extending perpendicularly to the direction in which the axis of the screw extends in relation to the main body having the screw. By being formed, the main body portion penetrates the seat frame in a state where the plate-like portion is integrated with the seat frame, and a fastening member which can be screwed to the screw portion is fastened. The other member is connected to the seat frame, and a plurality of the groove portions are radially arranged around an axis of the screw portion.

連結部材の本体部に対して締結部材を締結しようとすると、連結部材に対してねじを回転する方向のトルクが印加される。第３発明によれば、溝部内に浸入した状態で固化したマトリクス樹脂により上記トルクにより生み出される回転方向のせん断力を効率的に受け止めることができるため、締結部材の締結時における連結部材の回転止めを効率的に行うことができる。   When trying to fasten the fastening member to the main body of the connecting member, a torque in the direction of rotating the screw is applied to the connecting member. According to the third aspect of the present invention, the matrix resin solidified in a state in which it enters into the groove can efficiently receive the shear force in the rotational direction generated by the torque. Can be done efficiently.

本発明の第４発明は、第１発明から第３発明のいずれか１つにおいて、前記板状部には、その厚み方向に延びて前記板状部を貫通する貫通孔が設けられていることを特徴とする。   According to a fourth invention of the present invention, in any one of the first invention to the third invention, the plate-like portion is provided with a through hole which extends in the thickness direction and penetrates the plate-like portion. It is characterized by

第４発明によれば、シートフレームの成形時に流動状態のマトリクス樹脂が貫通孔内を流れることができるため、板状部周りにボイド等の成形不良が発生し難くなる。また、シートフレームの成形時に流動状態のマトリクス樹脂が貫通孔内に浸入した状態で固化するため、板状部のシートフレームに対する面内回転方向のせん断強度を高めることができる。   According to the fourth invention, since the matrix resin in a fluid state can flow in the through holes at the time of molding of the seat frame, molding defects such as voids are less likely to occur around the plate-like portion. In addition, since the matrix resin in a fluidized state is solidified in a state in which it flows into the through holes at the time of molding the seat frame, shear strength in the in-plane rotational direction with respect to the seat frame of the plate-like portion can be increased.

本発明の一実施形態である自動車用シートの斜視図である。It is a perspective view of a car seat which is one embodiment of the present invention. 図１のＩＩ−ＩＩ矢視線断面図である。FIG. 2 is a cross-sectional view taken along line II-II in FIG. 図２の部分ＩＩＩの拡大図である。FIG. 3 is an enlarged view of a portion III of FIG. 2; 上記実施形態に係るナットの正面図である。It is a front view of the nut concerning the above-mentioned embodiment. 上記実施形態に係るナットの側面図である。It is a side view of a nut concerning the above-mentioned embodiment. 図４のＶＩ−ＶＩ矢視線断面図である。FIG. 6 is a cross-sectional view taken along line VI-VI of FIG. 4;

図１〜図６は、本発明の一実施形態を示す。本実施形態は、自動車用シートのシートバックに本発明を適用した例を示す。各図中、矢印により自動車用シートを自動車に取付けたときの自動車の各方向を示している。以下の説明において、方向に関する記述は、この方向を基準として行うものとする。   1 to 6 show an embodiment of the present invention. The present embodiment shows an example in which the present invention is applied to a seat back of a car seat. In each of the drawings, arrows indicate directions of the vehicle when the vehicle seat is attached to the vehicle. In the following description, the description of the direction will be made based on this direction.

図１に示すように、自動車用シート１は、シートクッション１０と、シートバック２０と、を備えている。   As shown in FIG. 1, the automobile seat 1 includes a seat cushion 10 and a seat back 20.

図１に示すように、シートクッション１０は骨格部材であるクッションフレーム（図示しない）の上に、クッション材であるクッションパッド１１を載置し、その上から表皮材であるクッションカバー（図示しない）で覆った構造をしている。クッションフレームの後端部には、金属製のロアアーム１２が設けられている。   As shown in FIG. 1, the seat cushion 10 mounts the cushion pad 11 which is a cushion material on a cushion frame (not shown) which is a framework member, and a cushion cover (not shown) which is a skin material from above. It has a structure covered with. A lower arm 12 made of metal is provided at the rear end of the cushion frame.

図１に示すように、シートバック２０は、シェルタイプの骨格部材であるバックパン２１の上に、クッション材であるバックパッド（図示しない）を載置し、その上から表皮材であるバックカバー（図示しない）で覆った構造をしている。バックパン２１が特許請求の範囲の「シートフレーム」に相当する。   As shown in FIG. 1, in the seat back 20, a back pad (not shown) which is a cushioning material is placed on a back pan 21 which is a shell type frame member, and a back cover which is a skin material from above. It has a structure covered by (not shown). The back pan 21 corresponds to the "seat frame" in the claims.

図１及び図２に示すように、バックパン２１はシートバック２０の左右方向中央部に配設されて左右方向に延びるメイン部２１１と、メイン部２１１の左右両側に配設されてメイン部２１１の左右両端から前方に延びるサイド部２１２と、を備えている。メイン部２１１において自動車用シート１に着座した着座者の両肩上部に対応する位置には、意匠孔２１１Ａが２つ設けられている。また、両サイド部２１２の上下２箇所には、後述するナット４０が取付けられており、ナット４０とボルト５０との締結により、両サイド部２１２の左右方向外側面に対してアッパアーム２３が締着されている。アッパアーム２３は、上下方向に長尺な金属製部材であり、その上端部近傍及び上下方向中間部近傍のナット４０に対応する位置に、ボルト５０を挿通可能な貫通孔２３１（図３参照）が形成されている。アッパアーム２３の下端部はリクライナ３０を介して、ロアアーム１２に取付けられている。このため、リクライナ３０の働きにより、シートクッション１０に対するシートバック２０の傾き調整が可能となっている。   As shown in FIGS. 1 and 2, the back pan 21 is disposed at the center of the seatback 20 in the left-right direction and extends in the left-right direction, and the back pan 21 is disposed on the left and right sides of the main part 211. And side portions 212 extending forward from the left and right ends of the Two design holes 211A are provided at positions corresponding to upper shoulders of a seated person seated on the automotive seat 1 in the main portion 211. Further, nuts 40 described later are attached to upper and lower two places of both side portions 212, and by fastening the nut 40 and the bolt 50, the upper arm 23 is fastened to the lateral outer surface of both side portions 212. It is done. The upper arm 23 is a metal member elongated in the vertical direction, and has a through hole 231 (see FIG. 3) through which the bolt 50 can be inserted at a position corresponding to the nut 40 near the upper end and the middle in the vertical direction. It is formed. The lower end portion of the upper arm 23 is attached to the lower arm 12 via a recliner 30. Therefore, the tilt adjustment of the seat back 20 with respect to the seat cushion 10 is possible by the function of the recliner 30.

図３〜図６に示すように、ナット４０は、長尺な筒状部４１と、筒状部４１の外壁部４１１に対して筒状部４１の長手方向に対して垂直に延びる鍔状に形成された円板状の板状部４３と、を備えた金属製部材である。筒状部４１は長手方向両端面が開放されており、その内壁部４１２には筒状部４１の長手方向に延びる雌ねじ部４１２Ａが形成されている。雌ねじ部４１２Ａは、筒状部４１の長手方向一端部４１Ａから筒状部４１内に挿入されるボルト５０の雄ねじ部５０Ａと螺合可能に構成されている。また、図４〜図６に示すように、板状部４３の厚み方向に垂直な両面には、雌ねじ部４１２Ａの軸を中心として９０度間隔で放射状に延びる溝部４３１が設けられている。溝部４３１は、筒状部４１の外壁部４１１と板状部４３との境界部位から板状部４３の端部まで延びており、板状部４３の厚み方向に垂直な面の一方に４つ、厚み方向に垂直な面の他方かつ上記した４つの裏に相当する部位に４つ、の計８つ設けられている。溝部４３１の底面部４３１Ａにおいて、その延設方向中央部には、板状部４３の厚み方向に延びる貫通孔４３２が貫通形成されている。ナット４０が特許請求の範囲の「連結部材」に相当する。筒状部４１が特許請求の範囲の「本体部」に相当する。雌ねじ部４１２Ａが特許請求の範囲の「ねじ部」に相当する。ボルト５０が特許請求の範囲の「締結部材」に相当する。   As shown in FIGS. 3 to 6, the nut 40 is in the form of a long cylindrical portion 41 and a bowl shape extending perpendicularly to the longitudinal direction of the cylindrical portion 41 with respect to the outer wall portion 411 of the cylindrical portion 41. It is a metal member provided with the disk shaped plate-like part 43 formed. The cylindrical portion 41 is open at both end surfaces in the longitudinal direction, and an internal thread portion 412A extending in the longitudinal direction of the cylindrical portion 41 is formed on the inner wall portion 412 thereof. The female screw portion 412A is configured to be capable of being screwed with the male screw portion 50A of the bolt 50 inserted into the cylindrical portion 41 from the longitudinal direction one end portion 41A of the cylindrical portion 41. Further, as shown in FIG. 4 to FIG. 6, on both surfaces perpendicular to the thickness direction of the plate-like portion 43, groove portions 431 radially extending at intervals of 90 degrees around the axis of the female screw portion 412A are provided. The groove portion 431 extends from the boundary between the outer wall portion 411 of the cylindrical portion 41 and the plate portion 43 to the end portion of the plate portion 43, and four grooves 431 are provided on one of the surfaces perpendicular to the thickness direction of the plate portion 43. A total of eight, four in total, are provided at the other of the surfaces perpendicular to the thickness direction and at the portions corresponding to the above four backs. A through hole 432 extending in the thickness direction of the plate-like portion 43 is formed to penetrate at the central portion in the extending direction of the bottom surface portion 431A of the groove portion 431. The nut 40 corresponds to a "connection member" in the claims. The cylindrical portion 41 corresponds to the "main portion" in the claims. The female screw portion 412A corresponds to the "screw portion" in the claims. The bolt 50 corresponds to a "fastening member" in the claims.

図３に示すように、バックパン２１は、カーボン繊維を織った厚さ０．２ｍｍ程度の織物Ｃを複数枚（本実施形態では４枚）積層させたものを強化材とし、エポキシ樹脂をマトリクス樹脂とする繊維強化樹脂を用いて製造される。バックパン２１の成形の仕方は、樹脂トランスファー成形法（以下、ＲＴＭ法という）である。より詳細には、まず、樹脂を染み込ませていない状態のカーボン繊維の織物Ｃをバックパン２１の形状に対応させて外形切りしたのち、ナット４０の取付け位置に対応した部位に、ナット４０の筒状部４１は挿入できるが板状部４３は挿入できないサイズの孔を開ける。次に、上下型を閉じたときにバックパン２１と同形状のキャビティを形成する成形型のキャビティ内に、上記カーボン繊維の織物Ｃを所定枚数（本実施形態では２枚）配置し、上記孔に対してナット４０の筒状部４１の長手方向一端部４１Ａを挿入する。そして、この上から上記カーボン繊維の織物Ｃをさらに所定枚数（本実施形態では２枚）配置し、上記孔からナット４０の筒状部４１の長手方向他端部４１Ｂを露出させる。この状態で、上下型を閉じて、キャビティに流動状態の硬化前エポキシ樹脂を注入して反応硬化させて脱型する、というものである。すなわち、ナット４０の板状部４３は、インサート成形によって厚み方向両側に上記織物Ｃの一部が積層された状態でバックパン２１に一体化されることになる。このとき、ナット４０の筒状部４１の長手方向一端部４１Ａが、バックパン２１の左右方向外側の面と面一の状態にあり、筒状部４１の長手方向他端部４１Ｂが、バックパン２１の左右方向内側の面から突出した状態にある。   As shown in FIG. 3, in the back pan 21, a reinforcing material is formed by laminating a plurality of sheets (four sheets in the present embodiment) of a woven fabric C having a thickness of about 0.2 mm woven with carbon fibers as a reinforcing material, and an epoxy resin matrix It manufactures using fiber reinforced resin made into resin. The back pan 21 is formed by resin transfer molding (hereinafter referred to as RTM method). More specifically, the carbon fiber fabric C in a state not impregnated with resin is cut out in accordance with the shape of the back pan 21, and then a cylinder of the nut 40 is provided at a portion corresponding to the mounting position of the nut 40. A hole of a size that can be inserted but can not be inserted into the plate-like portion 43 is made. Next, a predetermined number (two in the present embodiment) of the carbon fiber woven fabric C is disposed in the cavity of the mold that forms the cavity of the same shape as the back pan 21 when the upper and lower molds are closed. The longitudinal direction end 41A of the cylindrical portion 41 of the nut 40 is inserted. Then, a predetermined number (two in the present embodiment) of the carbon fiber woven fabric C is arranged from above, and the other end 41 B of the cylindrical portion 41 of the nut 40 in the longitudinal direction is exposed from the holes. In this state, the upper and lower molds are closed, and a fluid state epoxy resin before curing is injected into the cavity to cause reaction curing and mold removal. That is, the plate-like portion 43 of the nut 40 is integrated with the back pan 21 in a state where a part of the fabric C is laminated on both sides in the thickness direction by insert molding. At this time, one longitudinal end 41A of the cylindrical portion 41 of the nut 40 is flush with the outer surface of the back pan 21 in the left-right direction, and the other longitudinal end 41B of the cylindrical portion 41 is It is in the state where it projected from the field inside [right-left direction of 21].

以上のように構成される本実施形態は、次のような作用効果を奏する。複数枚のカーボン繊維の織物Ｃが積層されたものを強化材とした繊維強化樹脂製のバックパン２１に対して、ナット４０の板状部４３が、複数枚のカーボン繊維の織物Ｃの層間に挟み入れられた状態で一体化されることで取付けられる。これによって、バックパン２１の成形と同時に板状部４３がバックパン２１に取付けられ、バックパン２１の成形後に板状部４３を別工程で取付ける作業が不要となる。また、複数枚のカーボン繊維の織物Ｃが積層されたものの一部が、板状部４３を厚み方向両側から支持する。このため、ナット４０に対して板状部４３の厚み方向のどちら側の方向から荷重が印加された場合であっても、板状部４３を強化材が入れられた繊維強化樹脂によって支持することができる。また、バックパン２１の成形時に流動状態のエポキシ樹脂が溝部４３１内及び貫通孔４３２内を流れることができるため、板状部４３周りにボイド等の成形不良が発生し難くなる。また、バックパン２１の成形時に流動状態のエポキシ樹脂が溝部４３１内及び貫通孔４３２内に浸入した状態で固化するため、板状部４３のバックパン２１に対する面内方向のせん断強度を高めることができる。また、溝部４３１は雌ねじ部４１２Ａの軸を中心に放射状に延びている。これにより、溝部４３１内に浸入した状態で固化したエポキシ樹脂により、ボルト５０をナット４０の筒状部４１に螺入させる際に生じるトルクにより生み出される回転方向のせん断力を効率的に受け止めることができるため、ボルト５０の締結時におけるナット４０の回転止めを効率的に行うことができる。   The present embodiment configured as described above has the following effects. In contrast to the backpan 21 made of fiber reinforced resin, which has a reinforcing material formed by laminating a plurality of woven fabrics C of carbon fibers, the plate-like portion 43 of the nut 40 is between the layers of the woven fabrics C of multiple carbon fibers. It is attached by being integrated in a pinched state. As a result, the plate-like portion 43 is attached to the back pan 21 simultaneously with the formation of the back pan 21, and the operation of attaching the plate-like portion 43 in a separate step after the formation of the back pan 21 is unnecessary. In addition, a part of a laminate of a plurality of carbon fiber woven fabrics C supports the plate-like portion 43 from both sides in the thickness direction. For this reason, even when a load is applied to the nut 40 from which side in the thickness direction of the plate-like portion 43, the plate-like portion 43 is supported by the fiber reinforced resin in which the reinforcing material is inserted. Can. In addition, since the epoxy resin in a fluid state can flow in the groove portion 431 and the through hole 432 at the time of molding of the back pan 21, molding defects such as voids are less likely to occur around the plate-like portion 43. In addition, since the epoxy resin in a fluid state solidifies in the groove portion 431 and the through hole 432 when forming the back pan 21, the shear strength in the in-plane direction of the plate portion 43 with respect to the back pan 21 is increased. it can. Further, the groove portion 431 radially extends around the axis of the female screw portion 412A. Thus, the epoxy resin solidified in a state in which it is intruded in the groove 431 efficiently receives the rotational shear force generated by the torque generated when the bolt 50 is screwed into the cylindrical portion 41 of the nut 40. Since it can do, rotation stop of nut 40 at the time of fastening of bolt 50 can be performed efficiently.

以上、特定の実施形態について説明したが、本発明は、それらの外観、構成に限定されず、本発明の要旨を変更しない範囲で種々の変更、追加、削除が可能である。   As mentioned above, although specific embodiment was described, the present invention is not limited to those appearances and composition, and various change, addition, and deletion are possible in the range which does not change the gist of the present invention.

例えば、本実施形態においては、バックパン２１にナット４０を取付けておき、そこにボルト５０を締結させる構造を示した。しかし、これに限定されず、バックパン２１にボルトを取付けておき、そこにナットを締結させる構造であってもよい。すなわち、連結部材がボルトであり、連結部材のねじ部が雄ねじ部となる構造であってもよい。この他にも、連結部材は、カラー等に対して鍔状の板状部を設けたものであってもよいし、ワッシャー等のように部材全体が板状に構成されているものであってもよい。   For example, in the present embodiment, a structure is shown in which the nut 40 is attached to the back pan 21 and the bolt 50 is fastened thereto. However, the present invention is not limited to this, and a bolt may be attached to the back pan 21 and a nut may be fastened thereto. That is, the connection member may be a bolt, and the screw portion of the connection member may be a male screw portion. In addition to this, the connecting member may be a collar or the like provided with a bowl-shaped plate-like portion, or the whole member is formed in a plate shape like a washer or the like. It is also good.

また、本実施形態においては、バックパン２１をＲＴＭ法により成形する例を示したが、これに限定されず、他の方法により成形してもよい。すなわち、例えば、バックパン２１をオートクレーブ成形法により成形してもよい。この成形の仕方は、まず、カーボン繊維の織物Ｃにエポキシ樹脂を含浸させたプリプレグ材に、ナット４０の筒状部４１は挿入できるが板状部４３は挿入できないサイズの孔を開ける。次に、上下型を閉じたときにバックパン２１と同形状のキャビティを形成する成形型のキャビティ内に、上記孔がナット４０の取付け位置に対応するように上記プリプレグ材を所定枚数（本実施形態では２枚）配置し、上記孔に対してナット４０の筒状部４１の長手方向一端部４１Ａを挿入する。そして、この上から上記孔がナット４０の取付け位置に対応するように上記プリプレグ材をさらに所定枚数（本実施形態では２枚）配置し、上記孔からナット４０の筒状部４１の長手方向他端部４１Ｂを露出させる。この状態で、上下型を閉じて、オートクレーブ内で加圧しながら加熱してエポキシ樹脂を硬化させたのち脱型する、というものである。   Moreover, in this embodiment, although the example which shape | molds the back pan 21 by RTM method was shown, it is not limited to this, You may shape | mold by another method. That is, for example, the back pan 21 may be molded by an autoclave molding method. First, a hole is formed in a prepreg material in which a carbon fiber woven fabric C is impregnated with an epoxy resin, in which the cylindrical portion 41 of the nut 40 can be inserted but the plate-like portion 43 can not be inserted. Next, when the upper and lower molds are closed, a predetermined number of the prepreg materials are placed in the cavities of the mold forming the same shape cavity as the back pan 21 so that the holes correspond to the mounting positions of the nuts 40 In the embodiment, two pieces are disposed, and the longitudinal direction one end portion 41A of the cylindrical portion 41 of the nut 40 is inserted into the hole. Then, a predetermined number of sheets (two sheets in the present embodiment) of the prepreg material are disposed so that the holes correspond to the mounting positions of the nuts 40 from above, and the longitudinal direction of the tubular portion 41 of the nuts The end 41B is exposed. In this state, the upper and lower molds are closed, and heating is performed while pressurizing in an autoclave to cure the epoxy resin, and then the mold is released.

また、本実施形態においては、ナット４０の板状部４３の厚み方向両側に、カーボン繊維の織物Ｃが２枚ずつ積層されている構造を示した。しかし、これに限定されず、要求される強度及び剛性さえ満たせば、例えば、カーボン繊維の織物Ｃは１枚ずつであってもよいし、３枚以上ずつであってもよい。また、板状部４３の厚み方向一方側に積層されているカーボン繊維の織物Ｃの枚数が、厚み方向他方側に積層されているカーボン繊維の織物Ｃの枚数と異なっていてもよい。   Moreover, in the present embodiment, a structure is shown in which two woven fabrics C of carbon fibers are laminated on both sides in the thickness direction of the plate-like portion 43 of the nut 40. However, the present invention is not limited to this, and as long as the required strength and rigidity are satisfied, for example, the carbon fiber fabric C may be one by one or three or more. Further, the number of carbon fiber woven fabrics C laminated on one side in the thickness direction of the plate-like portion 43 may be different from the number of carbon textiles C stacked on the other side in the thickness direction.

また、本実施形態においては、バックパン２１の成形後に、ナット４０の長手方向一端部４１Ａがバックパン２１の左右方向外側の面と面一となる構造を示した。しかし、これに限定されず、ナット４０の長手方向一端部４１Ａがバックパン２１の左右方向外側の面よりも突出していてもよいし、窪んでいてもよい。   Further, in the present embodiment, after the back pan 21 is formed, the longitudinal end portion 41A of the nut 40 is flush with the outer surface of the back pan 21 in the left-right direction. However, the present invention is not limited to this, and the longitudinal direction one end portion 41A of the nut 40 may protrude from the surface on the outer side in the left-right direction of the back pan 21 or may be recessed.

また、本実施形態においては、バックパン２１の強化材として、カーボン繊維の織物Ｃを用いる構造を示した。しかし、これに限定されず、カーボン繊維の編物又は不織布であってもよい。また、強化材は、ガラス繊維やアラミド繊維の織物、編物又は不織布であってもよい。   Moreover, in the present embodiment, the structure using the woven fabric C of carbon fibers as the reinforcing material of the back pan 21 is shown. However, the present invention is not limited to this, and may be a carbon fiber knit or non-woven fabric. The reinforcing material may also be a woven, knitted or non-woven fabric of glass fiber or aramid fiber.

また、本実施形態においては、本発明をシートバック２０に適用したが、シートクッション１０に適用してもよい。   Moreover, although this invention was applied to the seat back 20 in this embodiment, you may apply to the seat cushion 10. FIG.

また、本実施形態においては、本発明を自動車のシートに適用したが、飛行機、船、電車等に搭載されるシートに適用してもよい。   Moreover, although this invention was applied to the sheet | seat of a motor vehicle in this embodiment, you may apply to the sheet | seat mounted in an airplane, a ship, a train etc.

１ 自動車用シート（乗物用シート）
２１ バックパン（シートフレーム）
２３ アッパアーム（他部材）
４０ ナット（連結部材）
４１ 筒状部（本体部）
４１２Ａ 雌ねじ部（ねじ部）
４３ 板状部
４３１ 溝部
４３２ 貫通孔
Ｃ カーボン繊維の織物
1 Automotive seat (vehicle seat)
21 back pan (seat frame)
23 Upper arm (other members)
40 nut (connection member)
41 Tubular part (body part)
412A internal thread (screw)
43 plate-like portion 431 groove portion 432 through hole C woven fabric of carbon fiber

Claims (2)

乗物用シートであって、
複数枚の織物、編物又は不織布が積層されたものを強化材とした繊維強化樹脂製のシートフレームと、該シートフレームに対して他部材を連結する連結部材と、を備えており、
該連結部材は板状部を備え、該板状部がその厚み方向に前記複数枚の織物、編物又は不織布が積層されるように該複数枚の織物、編物又は不織布の層間に挟み入れられた状態で前記シートフレームに一体化されており、
前記板状部の厚み方向に垂直な面の少なくとも１つには、溝部が設けられており、
前記連結部材は、ねじ部を備えた本体部に対して前記板状部が前記ねじ部の軸の延びる方向に対して垂直に延びる鍔状に形成されているとともに、前記板状部が前記シートフレームに一体化された状態において前記本体部が前記シートフレームを貫通し、前記ねじ部に対して螺合可能な締結部材が締結されることにより前記シートフレームに対して前記他部材が連結されるように構成されており、
前記溝部は、前記ねじ部の軸を中心に放射状に複数本配設されている乗物用シート。 A vehicle seat,
A sheet frame made of a fiber reinforced resin using a plurality of woven fabrics, knitted fabrics or non-woven fabrics as a reinforcing material, and a connecting member for connecting other members to the sheet frame,
The connecting member has a plate-like portion, and the plate-like portion is sandwiched between layers of the plurality of woven fabric, knitted fabric or non-woven fabric so that the plurality of woven fabric, knitted fabric or non-woven fabric is laminated in its thickness direction Integrated with the seat frame in a state ,
A groove is provided in at least one of the surfaces perpendicular to the thickness direction of the plate-like portion,
The connecting member is formed in a hook shape in which the plate-like portion extends perpendicularly to the extending direction of the axis of the screw portion with respect to the main body portion having the screw portion, and the plate-like portion is the sheet In the state of being integrated with the frame, the main body portion penetrates the seat frame, and the other member is connected to the seat frame by fastening a screwable fastening member to the screw portion. Is configured as
The vehicle seat is provided with a plurality of the groove portions radially about the axis of the screw portion . 請求項１において、
前記板状部には、その厚み方向に延びて前記板状部を貫通する貫通孔が設けられている乗物用シート。




In claim 1,
A vehicle seat provided with a through hole extending in the thickness direction of the plate-like portion and penetrating the plate-like portion .




JP2015160901A 2015-08-18 2015-08-18 Vehicle seat Expired - Fee Related JP6507929B2 (en)

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