JP3962618B2 - Terminal processing method and jig for vehicle seat - Google Patents

Terminal processing method and jig for vehicle seat Download PDF

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Publication number
JP3962618B2
JP3962618B2 JP2002096842A JP2002096842A JP3962618B2 JP 3962618 B2 JP3962618 B2 JP 3962618B2 JP 2002096842 A JP2002096842 A JP 2002096842A JP 2002096842 A JP2002096842 A JP 2002096842A JP 3962618 B2 JP3962618 B2 JP 3962618B2
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Prior art keywords
skin material
protrusion
bottom plate
heating
jig
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JP2003290577A (en
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強 末松
雄二 荒木
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TS Tech Co Ltd
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TS Tech Co Ltd
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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
    • B60N2/58—Seat coverings
    • B60N2/5816—Seat coverings attachments thereof
    • B60N2/5825—Seat coverings attachments thereof by hooks, staples, clips, snap fasteners or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/60—Riveting or staking
    • B29C65/606—Riveting or staking the rivets being integral with one of the parts to be joined, i.e. staking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/23—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations
    • B29C66/232—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being multiple and parallel or being in the form of tessellations said joint lines being multiple and parallel, i.e. the joint being formed by several parallel joint lines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5326—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • B29C66/545—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles one hollow-preform being placed inside the other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/61—Joining from or joining on the inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/727—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being porous, e.g. foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3005—Body finishings
    • B29L2031/3023—Head-rests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/737—Articles provided with holes, e.g. grids, sieves

Description

【０００１】
【産業上の利用分野】
本発明は、車両用シートの端末処理方法並びに治具に係り、特に表皮材とボトムプレートとの接合にステイプルを用いない車両用シートの端末処理方法並びに治具に関する。
【０００２】
【従来の技術】
自動二輪車等に配設されている車両用シートは、図１３に示すように、ボトムプレート１３０上にクッション材１２０を載置して、表皮材１１０で被覆することにより形成されている。表皮材１１０の端末部１１０ａは、ボトムプレート１３０の裏面側にステイプル１４０により固定されている。
【０００３】
ところで、従来より種々の産業分野において、部品に剛性が要求される場合、金属に比して重量が軽く、しかも製造が容易である繊維強化樹脂の成形品が使用されている。そして、自動車や自動二輪車の部品等においても、繊維強化樹脂の樹脂成形品が使用されている。
【０００４】
【発明が解決しようとする課題】
車両用シートのボトムプレートについても、上記繊維強化樹脂を用いることにより、重量を増加させることなく剛性を確保することができ好適である。しかし、前記したように、ボトムプレートには、表皮材がステイプルにより接合されるため、繊維が混入された樹脂からなるボトムプレートの場合、ステイプルを打ち込むときのタッカー及びステイプルによる衝撃で割れが発生するおそれがあった。
【０００５】
また、表皮材の端末部をステイプルによりボトムプレートに固定する場合、表皮材を適切な位置に保持しながら、タッカーによってステイプルを打ち込まなければならないため、効率よく作業を行うためには熟練が必要とされていた。
【０００６】
本発明の目的は、ステイプルを用いることなく表皮材の端末処理が好適になされる車両用シートの端末処理方法、並びに車両用シートの端末処理工程で用いられる治具を提供することにある。また、本発明の目的は、軽量且つ剛性の高いボトムプレートを備えるとともに、表皮材の端末処理が好適になされる車両用シートの端末処理方法、並びに車両用シートの端末処理工程で用いられる治具を提供することにある。
【０００７】
【課題を解決するための手段】
上記課題は、請求項１に係る車両用シートＳの端末処理方法によれば、ボトムプレート３０を備えるとともに表皮材で被覆された車両用シートＳの端末処理方法において、前記ボトムプレート３０の裏面側に前記表皮材１０の端末領域１０ａを位置させる第１の工程と、前記ボトムプレート３０の裏面側に設けられた突起３２の位置で前記表皮材１０を加熱溶融して孔１０ｂを形成し該孔１０ｂに前記突起３２を貫通させる第２の工程と、前記突起３２の先端部を加熱溶融するとともに圧力を加え、前記孔１０ｂに係合した部分３２ｂよりも大きくなるように変形させ、前記ボトムプレート３０の裏面と前記突起３２の変形された部分３２ａとの間で前記表皮材１０の端末領域１０ａを固定する第３の工程と、を備えたことにより解決される。
【０００８】
上記端末処理工程では、次の治具が用いられる。すなわち、本発明の請求項２に係る治具は、ボトムプレート３０を備えるとともに表皮材１０で被覆された車両用シートの端末処理工程で用いられる治具４０であって、前記ボトムプレート３０の裏面側に設けられた突起３２の位置で、該突起３２に重ねて配設された前記表皮材１０と、前記突起３２の先端部を加熱する加熱部４１と、該加熱部４１よりも外側に設けられ前記表皮材１０を押さえる表皮材押え部４２とを備えたことを特徴とする。
【０００９】
そして、前記加熱部４１は該加熱部４１の端部外周縁に設けられた尖端部４１ａと、該尖端部４１ａに囲まれた凹部４１ｂとを備えた構成とされている。
【００１０】
【発明の実施の形態】
以下、本発明の一実施の形態を図面に基づいて説明する。なお、以下に説明する部材，配置等は本発明を限定するものでなく、本発明の趣旨の範囲内で種々改変することができるものである。
【００１１】
図１乃至図１２は本発明の一実施例を示すものであり、図１は車両用シートの要部断面図、図２乃至図９はボトムプレートに設けられた突起を示す説明図、図１０乃至図１２は本発明の車両用シートの端末処理工程を示す説明図である。
【００１２】
本例では、車両用シートＳとして、二輪車用シートに基づいて説明する。なお、車両用シートＳとは、二輪車、すなわち陸上のオートバイ，スクーターに用いられるものだけでなく、スノーモービル，水上バイク用のシートを含み、また三輪バギー車等や跨座式乗物、或いは建機シートに関する乗物用シートを含むものとする。
【００１３】
図１で示すように、本例の車両用シートＳは、表皮材１０と、クッション材２０と、ボトムプレート３０とから構成されている。表皮材１０は、ＰＶＣ（ポリ塩化ビニル樹脂）等の耐水性のある材質からなる。
【００１４】
クッション材２０は、柔軟フォーム材、例えばウレタンフォーム，ＰＰ（ポリプロピレン）フォーム，ＰＥ（ポリエチレン）フォームから形成されており、ボトムプレート３０上に載置される。
【００１５】
クッション材２０は表皮材１０に被覆される。なお、クッション材２０と表皮材１０とは別体として形成されていても良いし、或いは、クッション材２０と表皮材１０を一体成形する構成としても良い。
【００１６】
ボトムプレート３０は、例えばＰＰ（ポリプロピレン）、ＡＢＳ樹脂等から形成されるが、繊維強化樹脂であるＰＰＧ（ガラス繊維入りポリプロピレン）、ＰＰＴ（フィラー入りポリプロピレン）が使用されると、ボトムプレート３０の重量を増加させることなく剛性を確保することができ好適である。ＰＰＴには、強化繊維として、例えばカーボン繊維が混入されている。
【００１７】
本例のボトムプレート３０の裏面側には突起３２が設けられている。突起３２は表皮材１０の端末部１０ａを貫通するとともに、表皮材１０が係合された後で、端部が加熱，溶融，加圧されて頭部３２ａが形成され、この頭部３２ａとボトムプレート３０の裏面との間で、表皮材１０の端末部１０ａを保持するように構成されている。
【００１８】
突起３２は、例えば図２に示すような円柱状に形成されており、ボトムプレート３０の裏面側の周縁端部３１に設けられている。突起３２は、所定間隔をおいて複数個設けられている。
【００１９】
なお、突起３２の形状については、図２に示すような円柱状に限らず、図３に示すように、断面楕円形の突起３２であっても良い。或いは、断面多角形の突起であっても良い。
【００２０】
突起３２について、図３に示すような断面楕円形の柱状体として形成とすると、例えば突起３２の先端を加熱して、円形の頭部３２ａを形成したときに、頭部３２ａの幅と、頭部３２ａ以外の部分の幅の差を大きく確保することができる。したがって、頭部３２ａから表皮材１０の端末部１０ａが脱落することなく、表皮材１０をより確実に保持することが可能となる。
【００２１】
なお、断面楕円形の突起３２のように、端面の縦幅と横幅が異なる場合は、図４に示すようにボトムプレート３０の周縁端部に対して縦になるように設けたり、或いは斜めになるように設けても良い。
【００２２】
また、図５に示すように、複数の突起３２を、互い違いに位置するように設けても良い。このとき、断面の形状や大きさの異なる突起３２を混在させて設けても良い。
【００２３】
さらに、図６に示すように、突起３２として、ボトムプレート３０の裏面側の周縁端部３１に沿って、突条を形成しても良い。また、図７に示すように、突条を２本以上形成しても良い。
【００２４】
或いは、図８に示すように、この突条を分割して形成しても良い。さらに、図９に示すように、突条を分割した形状の突起３２を、互い違いになるように設けても良い。
【００２５】
さらにまた、突起３２が形成される場所については、図２乃至図９に示す例のように、ボトムプレート３０の周縁端部３１に限らず、ボトムプレート３０の座面部の裏側面であっても良い。
【００２６】
ここで、本例の車両用シートＳの端末処理工程で用いられる治具４０について説明する。治具４０は、図１０に示すように、加熱部４１と、表皮材押え部４２とを備えて構成されている。加熱部４１は、高熱伝導性を有する金属からなり、例えばアルミニウムから形成されている。加熱部４１は、発熱体であるヒータを内蔵しており、加熱部４１に当接した物体を加熱するように構成されている。
【００２７】
なお、加熱部４１にフッ素樹脂等の非着被膜を設けることにより、加熱部４１に非加熱物の溶融物等が付着しにくくなり好適である。また、溶融物が付着した場合であっても簡単に取り除くことが可能である。
【００２８】
加熱部４１は、例えば断面円形の棒体として形成されている。加熱部４１は、突起３２の周縁部に当接する尖端部４１ａと、この尖端部４１ａに囲まれた凹部４１ｂとを備えて形成されている。
【００２９】
尖端部４１ａは、端部側が最も薄くなるように形成されている。尖端部４１ａは、凹部４１ｂより先に表皮材１０に当接して加熱を行う。これにより、表皮材１０は、尖端部４１ａが当接した部分において溶融し、孔１０ｂが抜設される。
【００３０】
なお、尖端部４１ａの端部を、加熱と同時に表皮材１０に押圧することにより、尖端部４１ａで表皮材１０を加熱溶融し、同時に切断することができるので、より速く孔１０ｂを形成することが可能となる。このため、尖端部４１ａの端部は、表皮材１０を切断可能な刃部として形成されていると好ましい。
【００３１】
尖端部４１ａの内側には凹部４１ｂが設けられている。凹部４１ｂは、略半球状の空間部として形成されている。凹部４１ｂは、突起３２の先端部に係合し、突起３２の先端部を加熱溶融して圧力を付加して変形させ、所定形状に形付けて頭部３２ａを形成するものである。
【００３２】
突起３２の先端に頭部３２ａを形成することにより、孔１０ｂを介して突起３２に係合されていた表皮材１０の端末部１０ａは、ボトムプレート３０と頭部３２ａとの間に埋設されて固定される。
【００３３】
なお、頭部３２ａの形状は、本例のような半球状に限らず、断面楕円形、多角形等、ボトムプレート３０との間で表皮材１０を固定可能な形状であればどのようなものであっても良い。
【００３４】
加熱部４１の外側には、加熱部４１を取り囲むようにして表皮材押え部４２が設けられている。表皮材押え部４２は、加熱部４１よりもボトムプレート３０側に突出して設けられている。表皮材押え部４２は、図１１及び図１２に示すように、表皮材１０を保持して、加熱時に表皮材１０が動かないようにするものである。
【００３５】
なお、本例の治具４０は、上記した形状及び大きさに限らず、突起３２の形態に合わせて変更されるものである。例えば、突起３２が図６に示すような突条である場合は、治具４０の加熱部４１についても、ボトムプレート３０の周縁端部３１に沿った長尺形状とされる。
【００３６】
または、突起３２が図８に示すような突条を分割した形状である場合は、治具４０の加熱部４１は、ボトムプレート３０の周縁端部３１に沿った長尺形状、またはこれを分割した形状とされる。
【００３７】
なお、上記のように加熱部４１が長尺形状である場合も、加熱部４１の外側には表皮材押え部４２が設けられる。表皮材押え部４２は、加熱部４１に沿った枠状、またはこれを分割した形状で、加熱部４１の外側に設けられる。
【００３８】
また、図５に示すように、複数の突起３２が互い違いに位置するように配設されている場合は、それぞれの突起３２を別々に加熱するか、或いは、互い違いに配設された加熱部４１と、これら加熱部４１の間に表皮材押え部４２とを備え、複数の突起３２を同時に加熱可能とされた治具を使用して加熱を行うと良い。
【００３９】
なお、ボトムプレート３０の周縁端部３１に沿って複数の突起３２が設けられている場合、より短時間で加熱処理を行うために、長尺形状の加熱部４１またはこれを分割した形状の加熱部４１を備えた治具４０を使用して、複数の突起３２と、これら突起３２に重ねられた表皮材１０について同時に加熱するようにしても良い。
【００４０】
或いは、ボトムプレート３０の周縁端部に沿った形状の枠体、またはこれを分割した形状の枠体に、それぞれの突起３２を加熱するための複数の治具４０を配設し、これら複数の治具４０により一斉に加熱を行うようにしても良い。
【００４１】
次に、本例の車両用シートＳの端末処理方法について説明する。車両用シートＳの端末処理工程は、ボトムプレート３０の裏面側に表皮材１０の端末部１０ａを位置させる第１の工程と、ボトムプレート３０の裏面側に設けられた突起３２の位置で表皮材１０を加熱溶融して孔１０ｂを形成し、この孔１０ｂに突起３２を貫通させる第２の工程と、突起３２の端部を加熱溶融し、さらに圧力を加えて、孔１０ｂに係合した部分よりも大きい頭部３２ａを形成する第３の工程とから構成されている。
【００４２】
第１の工程の前に、表皮材１０，クッション材２０，ボトムプレート３０の組み付けが行われる。表皮材１０，クッション材２０，ボトムプレート３０の組み付けは、作業台等に載置されたクッション材２０及びボトムプレート３０を表皮材１０で被覆するか、或いは、表皮材１０が予め配設された金型に、クッション材２０及びボトムプレート３０が配設されることにより行われる。
【００４３】
第１の工程では、図１０に示すように、表皮材１０の端末部１０ａがボトムプレート３０の裏面側に配設される。表皮材１０は、端末部１０ａをボトムプレート３０の裏面側に折り返されて配設される。このとき、表皮材１０の端末部１０ａは、ボトムプレート３０の裏面側に設けられた突起３２に重ねて配設される。
【００４４】
次いで、第２の工程では、図１１に示すように、治具４０を上方から表皮材１０へ向けて下降させる。そして、加熱部４１のうち、表皮材１０に初めに当接する尖端部４１ａにより加熱が行われる。このとき、より速く孔１０ｂを形成するために、尖端部４１ａを表皮材１０へ押圧しても良い。尖端部４１ａによる加熱により、表皮材１０には孔１０ｂが形成される。そして、この孔１０ｂに突起３２が貫通される。
【００４５】
第３の工程では、図１２に示すように、治具４０をさらに下降させ、凹部４１ｂにより突起３２の先端部を加熱する。突起３２の先端部が加熱されて溶融すると、さらに治具４０を下降させ、突起３２を押圧して先端部を変形させる。第３の工程により、突起３２の先端部には、加熱部４１の凹部４１ｂと略同じ形状の頭部３２ａが形成される。
【００４６】
頭部３２ａは、少なくとも、突起３２の表皮材１０の孔１０ｂに係合している部分３２ｂよりも大きくなるように形成される。その後、治具４０を引き上げ、突起３２の頭部３２ａが固化するまで冷却する。このようにして、表皮材１０は、ボトムプレート３０の裏面側の周縁端部３１と、突起３２の頭部３２ａとの間で固定される。
【００４７】
なお、第３の工程で突起３２の先端部を加熱溶融するときに、第２の工程で表皮材１０に孔１０ｂを形成するために、尖端部４１ａによって打ち抜かれた表皮材１０の部分を一緒に加熱溶融しても良い。
【００４８】
これにより、突起３２の先端の溶融樹脂に、表皮材１０の打ち抜かれた部分が混入されるため、頭部３２ａをより大きなものとすることができ、表皮材１０の固定強度を向上させることが可能となる。
【００４９】
【発明の効果】
以上のように、本発明によれば、ボトムプレートに突起が設けられ、この突起が表皮材の端末領域を貫通するとともに、突起の先端を溶融させ加圧することにより変形させ、ボトムプレートの裏面と突起の変形された部分との間で表皮材の端末部を固定するので、従来より表皮材の端末処理に使用されていたステイプルを用いることなく、表皮材の端末処理を行うことが可能となる。このため、高度な熟練を要することなく、表皮材の端末処理を行うことが可能となる。
【００５０】
また、ステイプルを用いることなく表皮材がボトムプレートに固定されるので、ステイプルをタッカーで打ち込むような衝撃がボトムプレートに付与されることがない。
【００５１】
したがって、局部的な衝撃に弱いため従来では使用が困難であった繊維強化樹脂からなるボトムプレートを採用することが可能となる。これにより、車両用シートの重量を増加させることなく、剛性を確保することが可能となる。
【図面の簡単な説明】
【図１】車両用シートの要部断面図である。
【図２】ボトムプレートに設けられた突起を示す説明図である。
【図３】他の形状の突起を示す説明図である。
【図４】他の形状の突起を示す説明図である。
【図５】他の形状の突起を示す説明図である。
【図６】突起の他の態様としてボトムプレートに設けられた突条を示す説明図である。
【図７】他の形状の突条を示す説明図である。
【図８】他の形状の突条を示す説明図である。
【図９】他の形状の突条を示す説明図である。
【図１０】本発明の表皮材の端末処理工程（第１の工程）を示す説明図である。
【図１１】本発明の表皮材の端末処理工程（第２の工程）を示す説明図である。
【図１２】本発明の表皮材の端末処理工程（第３の工程）を示す説明図である。
【図１３】従来例を示す説明図である。
【符号の説明】
１０ 表皮材
１０ａ 端末部
１０ｂ 孔
２０ クッション材
３０ ボトムプレート
３１ 周縁端部
３２ 突起
３２ａ 頭部
４０ 治具
４１ 加熱部
４２ 表皮材押え部
Ｓ 車両用シート[0001]
[Industrial application fields]
The present invention relates to a terminal treatment method and fixture of the car dual sheet, in particular to end-processing method and jig car dual sheets have Na using staple for bonding the skin material and the bottom plate.
[0002]
[Prior art]
As shown in FIG. 13, a vehicle seat disposed in a motorcycle or the like is formed by placing a cushion material 120 on a bottom plate 130 and covering with a skin material 110. The terminal portion 110 a of the skin material 110 is fixed to the back surface side of the bottom plate 130 by a staple 140.
[0003]
By the way, in various industrial fields, when a part is required to have rigidity, a molded article of a fiber reinforced resin, which is lighter than metal and easy to manufacture, is used. Also, resin molded products of fiber reinforced resin are used in parts of automobiles and motorcycles.
[0004]
[Problems to be solved by the invention]
Also for the bottom plate of the vehicle seat, the use of the fiber reinforced resin is preferable because rigidity can be ensured without increasing the weight. However, as described above, since the skin material is joined to the bottom plate by staple, in the case of the bottom plate made of resin mixed with fibers, cracking occurs due to the impact caused by the tucker and the staple when the staple is driven. There was a fear.
[0005]
In addition, when fixing the end of the skin material to the bottom plate with staples, the staple material must be driven by the tucker while holding the skin material in an appropriate position, so skill is required to perform the work efficiently. It had been.
[0006]
An object of the present invention is to provide a terminal processing method vehicle dual sheets terminal processing Ru is preferably made of the skin material without using a staple, and a jig to be used in the terminal process of the vehicle seat. Another object of the present invention is provided with a light weight and high rigidity bottom plate, used terminal processing method vehicle dual sheets terminal treatment of the skin material is Ru is preferably made, as well as the terminal process of the vehicle seat jig Is to provide.
[ 0007 ]
[Means for Solving the Problems]
The above object is achieved according to the terminal processing method of the vehicle seat S according to claim 1, in the terminal processing method of a coated vehicle seat S with the skin material provided with a bottom plate 30, the back surface side of the bottom plate 30 A first step of positioning the end region 10a of the skin material 10 and a position of the protrusion 32 provided on the back surface side of the bottom plate 30 to heat and melt the skin material 10 to form a hole 10b. A second step of penetrating the protrusion 32 into 10b, and heat-melting the tip of the protrusion 32 and applying pressure to deform it so that it is larger than the portion 32b engaged with the hole 10b; And a third step of fixing the terminal region 10a of the skin material 10 between the back surface of the protrusion 30 and the deformed portion 32a of the protrusion 32.
[ 0008 ]
In the terminal processing step, the following jig is used. That is, the jig according to claim 2 of the present invention is a jig 40 that includes the bottom plate 30 and is used in the terminal processing step of the vehicle seat covered with the skin material 10, and is a back surface of the bottom plate 30. At the position of the protrusion 32 provided on the side, the skin material 10 disposed so as to overlap the protrusion 32, a heating part 41 for heating the tip part of the protrusion 32, and provided outside the heating part 41 And a skin material pressing portion 42 for pressing the skin material 10.
[ 0009 ]
And the said heating part 41 is set as the structure provided with the pointed part 41a provided in the edge part outer periphery of this heating part 41, and the recessed part 41b enclosed by this pointed part 41a.
[ 0010 ]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The members, arrangements, and the like described below are not intended to limit the present invention and can be variously modified within the scope of the gist of the present invention.
[ 0011 ]
1 to 12 show one embodiment of the present invention, FIG. 1 is a fragmentary sectional view of a vehicle dual seat, FIGS. 2 to 9 are explanatory views showing a projection provided on the bottom plate, FIG. 10 Thru | or FIG. 12 is explanatory drawing which shows the terminal process process of the vehicle seat of this invention .
[ 0012 ]
In this example, the vehicle seat S will be described based on a motorcycle seat. The vehicle seat S includes not only motorcycles, that is, those used on land motorcycles and scooters, but also seats for snowmobiles and water motorcycles, and also includes three-wheel buggy vehicles, straddle-type vehicles, and construction machinery. Vehicle seats related to the seat shall be included.
[ 0013 ]
As shown in FIG. 1, the vehicle seat S of this example includes a skin material 10, a cushion material 20, and a bottom plate 30. The skin material 10 is made of a water-resistant material such as PVC (polyvinyl chloride resin).
[ 0014 ]
The cushion material 20 is formed of a flexible foam material such as urethane foam, PP (polypropylene) foam, or PE (polyethylene) foam, and is placed on the bottom plate 30.
[ 0015 ]
The cushion material 20 is covered with the skin material 10. The cushion material 20 and the skin material 10 may be formed as separate bodies, or the cushion material 20 and the skin material 10 may be integrally formed.
[ 0016 ]
The bottom plate 30 is formed of, for example, PP (polypropylene), ABS resin, or the like. If PPG (polypropylene with glass fiber) or PPT (polypropylene with filler) is used, the weight of the bottom plate 30 is used. Rigidity can be ensured without increasing the thickness, which is preferable. For example, carbon fibers are mixed in the PPT as reinforcing fibers.
[ 0017 ]
A protrusion 32 is provided on the back side of the bottom plate 30 of this example. The protrusion 32 penetrates the terminal portion 10a of the skin material 10, and after the skin material 10 is engaged, the end portion is heated, melted and pressurized to form a head portion 32a. Between the back surface of the plate 30, it is comprised so that the terminal part 10a of the skin material 10 may be hold | maintained.
[ 0018 ]
The protrusion 32 is formed in a cylindrical shape as shown in FIG. 2, for example, and is provided at the peripheral edge 31 on the back surface side of the bottom plate 30. A plurality of protrusions 32 are provided at a predetermined interval.
[ 0019 ]
The shape of the protrusion 32 is not limited to the columnar shape as shown in FIG. 2, but may be a protrusion 32 having an elliptical cross section as shown in FIG. Alternatively, it may be a protrusion having a polygonal cross section.
[ 0020 ]
If the protrusion 32 is formed as a columnar body having an elliptical cross section as shown in FIG. 3, for example, when the tip of the protrusion 32 is heated to form a circular head 32a, the width of the head 32a and the head A large difference in width between portions other than the portion 32a can be secured. Therefore, the skin material 10 can be more reliably held without the terminal portion 10a of the skin material 10 falling off from the head portion 32a.
[ 0021 ]
In addition, when the vertical width and the horizontal width of the end face are different as in the case of the protrusion 32 having an elliptical cross section, it is provided so as to be vertical to the peripheral edge of the bottom plate 30 as shown in FIG. It may be provided as follows.
[ 0022 ]
Further, as shown in FIG. 5, the plurality of protrusions 32 may be provided so as to be alternately arranged. At this time, protrusions 32 having different cross-sectional shapes and sizes may be provided in a mixed manner.
[ 0023 ]
Further, as shown in FIG. 6, a protrusion may be formed as the protrusion 32 along the peripheral edge 31 on the back surface side of the bottom plate 30. Further, as shown in FIG. 7, two or more protrusions may be formed.
[ 0024 ]
Alternatively, as shown in FIG. 8, the protrusions may be divided and formed. Furthermore, as shown in FIG. 9, you may provide the protrusion 32 of the shape which divided | segmented the protrusion so that it might become alternate.
[ 0025 ]
Furthermore, the location where the protrusion 32 is formed is not limited to the peripheral edge portion 31 of the bottom plate 30 as in the examples shown in FIGS. good.
[ 0026 ]
Here, the jig | tool 40 used at the terminal process process of the vehicle seat S of this example is demonstrated. As shown in FIG. 10, the jig 40 includes a heating part 41 and a skin material pressing part 42. The heating unit 41 is made of a metal having high thermal conductivity, and is made of, for example, aluminum. The heating unit 41 incorporates a heater that is a heating element, and is configured to heat an object that is in contact with the heating unit 41.
[ 0027 ]
It is preferable to provide a non-coating film such as a fluororesin on the heating unit 41 so that a non-heated material melt or the like hardly adheres to the heating unit 41. Moreover, even if a melt adheres, it can be easily removed.
[ 0028 ]
The heating unit 41 is formed as a rod having a circular cross section, for example. The heating unit 41 includes a pointed portion 41 a that contacts the peripheral edge of the protrusion 32 and a recess 41 b surrounded by the pointed portion 41 a.
[ 0029 ]
The pointed portion 41a is formed so that the end portion side is the thinnest. The pointed portion 41a abuts on the skin material 10 prior to the recess 41b and heats it. As a result, the skin material 10 is melted at the portion where the pointed portion 41a comes into contact, and the hole 10b is extracted.
[ 0030 ]
In addition, since the skin material 10 can be heated and melted at the tip portion 41a and simultaneously cut by pressing the end portion of the tip portion 41a against the skin material 10 simultaneously with heating, the hole 10b can be formed faster. Is possible. For this reason, it is preferable that the end portion of the pointed portion 41 a is formed as a blade portion capable of cutting the skin material 10.
[ 0031 ]
A concave portion 41b is provided inside the pointed portion 41a. The recess 41b is formed as a substantially hemispherical space. Recess 41 b engages the distal end of the projection 32, by heating and melting the tip of the projection 32 is deformed by adding pressure, and forms the head 32a attach form a predetermined shape.
[ 0032 ]
By forming the head portion 32a at the tip of the protrusion 32, the end portion 10a of the skin material 10 engaged with the protrusion 32 through the hole 10b is embedded between the bottom plate 30 and the head portion 32a. Fixed.
[ 0033 ]
The shape of the head portion 32a is not limited to the hemispherical shape as in the present example, and any shape can be used as long as the skin material 10 can be fixed to the bottom plate 30, such as an elliptical cross section or a polygonal shape. It may be.
[ 0034 ]
A skin material pressing part 42 is provided outside the heating part 41 so as to surround the heating part 41. The skin material pressing part 42 is provided so as to protrude from the heating part 41 to the bottom plate 30 side. As shown in FIGS. 11 and 12, the skin material pressing portion 42 holds the skin material 10 so that the skin material 10 does not move during heating.
[ 0035 ]
Note that the jig 40 of this example is not limited to the shape and size described above, but is changed according to the form of the protrusion 32. For example, when the protrusion 32 is a protrusion as shown in FIG. 6, the heating part 41 of the jig 40 is also formed in a long shape along the peripheral edge part 31 of the bottom plate 30.
[ 0036 ]
Alternatively, when the protrusion 32 has a shape obtained by dividing the protrusion as shown in FIG. 8 , the heating part 41 of the jig 40 is a long shape along the peripheral edge part 31 of the bottom plate 30 or is divided. The shape is made.
[ 0037 ]
Even when the heating unit 41 has a long shape as described above, the skin material pressing unit 42 is provided outside the heating unit 41. The skin material pressing portion 42 is provided outside the heating portion 41 in a frame shape along the heating portion 41 or a shape obtained by dividing the frame shape.
[ 0038 ]
In addition, as shown in FIG. 5, when the plurality of protrusions 32 are arranged so as to be alternately arranged, the respective protrusions 32 are heated separately or the heating parts 41 arranged alternately. And it is good to heat using the jig | tool which provided the skin material pressing part 42 between these heating parts 41, and was able to heat the some protrusion 32 simultaneously.
[ 0039 ]
In addition, when the some protrusion 32 is provided along the peripheral edge part 31 of the bottom plate 30, in order to heat-process in a shorter time, the heating part 41 of the elongate shape or the shape which divided this is heated. The jig 40 including the portion 41 may be used to simultaneously heat the plurality of protrusions 32 and the skin material 10 stacked on the protrusions 32.
[ 0040 ]
Alternatively, a plurality of jigs 40 for heating the respective protrusions 32 are disposed on a frame having a shape along the peripheral edge of the bottom plate 30 or a frame having a shape obtained by dividing the frame. Heating may be performed simultaneously by the jig 40.
[ 0041 ]
Next, the terminal processing method of the vehicle seat S of this example will be described. The terminal processing step of the vehicle seat S includes the first step of positioning the terminal portion 10a of the skin material 10 on the back surface side of the bottom plate 30 and the position of the protrusion 32 provided on the back surface side of the bottom plate 30. 10 is heated and melted to form the hole 10b, and the second step of passing the protrusion 32 through the hole 10b, and the end of the protrusion 32 is heated and melted, and pressure is applied to engage the hole 10b. And a third step of forming a larger head portion 32a.
[ 0042 ]
Prior to the first step, the skin material 10, the cushion material 20, and the bottom plate 30 are assembled. Assembling of the skin material 10, the cushion material 20, and the bottom plate 30 covers the cushion material 20 and the bottom plate 30 placed on a work table or the like with the skin material 10, or the skin material 10 is disposed in advance. This is done by disposing the cushion material 20 and the bottom plate 30 on the mold.
[ 0043 ]
In the first step, as shown in FIG. 10, the terminal portion 10 a of the skin material 10 is disposed on the back surface side of the bottom plate 30. The skin material 10 is disposed with the terminal portion 10 a folded back to the back surface side of the bottom plate 30. At this time, the terminal portion 10 a of the skin material 10 is disposed so as to overlap the protrusion 32 provided on the back surface side of the bottom plate 30.
[ 0044 ]
Next, in the second step, as shown in FIG. 11, the jig 40 is lowered from above toward the skin material 10. And heating is performed by the tip part 41a which contact | abuts the skin material 10 among the heating parts 41 initially. At this time, the tip portion 41a may be pressed against the skin material 10 in order to form the hole 10b more quickly. A hole 10b is formed in the skin material 10 due to heating by the tip portion 41a. And the protrusion 32 is penetrated by this hole 10b.
[ 0045 ]
In the third step, as shown in FIG. 12, the jig 40 is further lowered, and the tip of the protrusion 32 is heated by the recess 41b. When the tip portion of the protrusion 32 is heated and melted, the jig 40 is further lowered, and the protrusion 32 is pressed to deform the tip portion. Through the third step, a head portion 32 a having substantially the same shape as the concave portion 41 b of the heating unit 41 is formed at the tip portion of the protrusion 32.
[ 0046 ]
The head portion 32a is formed to be at least larger than the portion 32b engaged with the hole 10b of the skin material 10 of the protrusion 32. Thereafter, the jig 40 is pulled up and cooled until the head portion 32a of the protrusion 32 is solidified. In this way, the skin material 10 is fixed between the peripheral edge 31 on the back surface side of the bottom plate 30 and the head 32 a of the protrusion 32.
[ 0047 ]
In addition, when the tip part of the protrusion 32 is heated and melted in the third step, the portion of the skin material 10 punched out by the pointed portion 41a is joined together in order to form the hole 10b in the skin material 10 in the second step. It may be heated and melted.
[ 0048 ]
As a result, since the punched portion of the skin material 10 is mixed into the molten resin at the tip of the protrusion 32, the head portion 32a can be made larger, and the fixing strength of the skin material 10 can be improved. It becomes possible.
[ 0049 ]
【The invention's effect】
As described above, according to the present invention, a protrusion is provided on the bottom plate, and the protrusion penetrates the terminal area of the skin material, and the tip of the protrusion is deformed by being melted and pressurized, since fixing the terminal portion of the skin material between the deformed portion of the protrusion, without the use of staples have been used from the terminal processing of the skin material conventionally, it is possible to perform the terminal processing of the skin material . For this reason, it becomes possible to perform the terminal process of a skin material, without requiring high skill.
[ 0050 ]
Further, since the skin material is fixed to the bottom plate without using the staple, an impact that strikes the staple with a tucker is not applied to the bottom plate.
[ 0051 ]
Therefore, it is possible to employ a bottom plate made of fiber reinforced resin, which has been difficult to use in the past because it is vulnerable to local impact. This makes it possible to ensure rigidity without increasing the weight of the vehicle seat.
[Brief description of the drawings]
FIG. 1 is a sectional view of an essential part of car dual seat.
FIG. 2 is an explanatory view showing protrusions provided on the bottom plate.
FIG. 3 is an explanatory view showing protrusions of other shapes.
FIG. 4 is an explanatory view showing protrusions of other shapes.
FIG. 5 is an explanatory view showing protrusions of other shapes.
FIG. 6 is an explanatory view showing a protrusion provided on the bottom plate as another embodiment of the protrusion.
FIG. 7 is an explanatory view showing a protrusion having another shape.
FIG. 8 is an explanatory view showing a protrusion having another shape.
FIG. 9 is an explanatory view showing a protrusion having another shape.
FIG. 10 is an explanatory view showing a terminal treatment step (first step) for the skin material of the present invention .
FIG. 11 is an explanatory view showing a terminal treatment step (second step) for the skin material of the present invention .
FIG. 12 is an explanatory view showing a terminal treatment step (third step) for the skin material of the present invention .
FIG. 13 is an explanatory diagram showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Skin material 10a Terminal part 10b Hole 20 Cushion material 30 Bottom plate 31 Perimeter edge part 32 Protrusion 32a Head 40 Jig 41 Heating part 42 Skin material pressing part S Vehicle seat

Claims (3)

ボトムプレートを備えるとともに表皮材で被覆された車両用シートの端末処理方法において、
前記ボトムプレート裏面側に前記表皮材の端末領域を位置させる第１の工程と、
前記ボトムプレートの裏面側に設けられた突起の位置で前記表皮材を加熱溶融して孔を形成し該孔に前記突起を貫通させる第２の工程と、
前記突起の先端部を加熱溶融するとともに圧力を加え、前記孔に係合した部分よりも大きくなるように変形させ、前記ボトムプレートの裏面と前記突起の変形された部分との間で前記表皮材の端末領域を固定する第３の工程と、を備えたことを特徴とする車両用シートの端末処理方法。In the terminal processing method of a vehicle seat provided with a bottom plate and covered with a skin material,
A first step of positioning a terminal region of the skin material on the bottom plate back side;
A second step of heating and melting the skin material at the position of the protrusion provided on the back surface side of the bottom plate to form a hole and penetrating the protrusion into the hole;
The tip material of the protrusion is heated and melted and pressure is applied to deform it so as to be larger than the portion engaged with the hole, and the skin material between the back surface of the bottom plate and the deformed portion of the protrusion And a third step of fixing the terminal area of the vehicle seat terminal processing method. ボトムプレートを備えるとともに表皮材で被覆された車両用シートの端末処理工程で用いられる治具であって、
前記ボトムプレートの裏面側に設けられた突起の位置で、該突起に重ねて配設された前記表皮材と、前記突起の先端部を加熱する加熱部と、該加熱部よりも外側に設けられ前記表皮材を押さえる表皮材押え部とを備えたことを特徴とする治具。A jig used in a terminal processing step of a vehicle seat provided with a bottom plate and covered with a skin material,
At the position of the protrusion provided on the back side of the bottom plate, the skin material disposed to overlap the protrusion, a heating part for heating the tip of the protrusion, and provided outside the heating part A jig comprising a skin material pressing portion for pressing the skin material. 前記加熱部は該加熱部の端部外周縁に設けられた尖端部と、該尖端部に囲まれた凹部とを備えたことを特徴とする請求項２記載の治具。The jig according to claim 2, wherein the heating unit includes a pointed portion provided on an outer peripheral edge of the end of the heating unit, and a concave portion surrounded by the pointed portion.
JP2002096842A 2002-03-29 2002-03-29 Terminal processing method and jig for vehicle seat Expired - Fee Related JP3962618B2 (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
JP2002096842A JP3962618B2 (en) 2002-03-29 2002-03-29 Terminal processing method and jig for vehicle seat

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JP3962618B2 true JP3962618B2 (en) 2007-08-22

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008041868A2 (en) * 2006-10-04 2008-04-10 Formway Furniture Limited A chair
CN103009627B (en) * 2012-12-21 2015-11-25 英普亿塑胶电子(苏州)有限公司 Foam stationary heat fusing device
JP6300403B2 (en) * 2014-02-07 2018-03-28 株式会社岡村製作所 Cushioning material for chair load support and load support for chair
US9981447B2 (en) 2014-03-25 2018-05-29 Teijin Limited Fiber-reinforced resin joined body having caulked part and manufacturing method thereof
JP6358612B2 (en) * 2014-04-14 2018-07-18 株式会社タチエス Vehicle seat

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