WO2017022558A1 - 車両用シート及びその製造方法 - Google Patents

車両用シート及びその製造方法 Download PDF

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Publication number
WO2017022558A1
WO2017022558A1 PCT/JP2016/071809 JP2016071809W WO2017022558A1 WO 2017022558 A1 WO2017022558 A1 WO 2017022558A1 JP 2016071809 W JP2016071809 W JP 2016071809W WO 2017022558 A1 WO2017022558 A1 WO 2017022558A1
Authority
WO
WIPO (PCT)
Prior art keywords
trim cover
urethane pad
vehicle seat
seat
trim
Prior art date
Application number
PCT/JP2016/071809
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
秀樹 鎌田
文 佐々木
Original Assignee
株式会社タチエス
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社タチエス filed Critical 株式会社タチエス
Publication of WO2017022558A1 publication Critical patent/WO2017022558A1/ja

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/02—Upholstery attaching 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
    • B60N2/58—Seat coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B68—SADDLERY; UPHOLSTERY
    • B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
    • B68G7/00—Making upholstery
    • B68G7/05—Covering or enveloping cores of pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B68—SADDLERY; UPHOLSTERY
    • B68G—METHODS, EQUIPMENT, OR MACHINES FOR USE IN UPHOLSTERING; UPHOLSTERY NOT OTHERWISE PROVIDED FOR
    • B68G7/00—Making upholstery
    • B68G7/05—Covering or enveloping cores of pads
    • B68G7/052—Covering or enveloping cores of pads with webs secured to the core, e.g. by stitching

Definitions

  • the present invention relates to a vehicle seat and a method for manufacturing the same.
  • Patent Document 1 discloses a vehicle seat having a planar reversible cover and a planar bellows cover, the reversible cover covering the surface of the seat back, and its edge It is described that the surface fastener set to 1 is fixed to the seat back, and the bellows cover is configured to cover the surface fastener of the reversible cover to the outside.
  • Patent Document 2 a groove is formed in a pad body of a vehicle seat, a plurality of holes penetrating to the lower recess are provided in the groove, and a suspension piece formed on the back surface of the skin of the vehicle seat Insert the wire into the insertion part of the hanging piece with the wire extending through the through hole of the groove formed in the pad body, and in this state the fitting body is fitted into the recess of the pad and seated on the seat pad Fixing the epidermis is described.
  • a recessed surface is formed in a portion where the surface fastener is fixed to the cushion pad of the seat back, and the surface fastener fixed to the recessed portion and the surface fastener attached to the skin base are combined.
  • the skin base is attached to the seat back.
  • the seat pad for fixing the seat skin when the shape of the seat pad for fixing the seat skin is complicated and the design of the seat is changed, the seat pad may be the same even if the shape of the entire seat pad is the same.
  • the position and shape for fixing the epidermis have changed, and it is necessary to prepare many types of seat pad forming molds.
  • the present invention provides a vehicle seat and a method for manufacturing the same.
  • the trim cover is formed by stitching a plurality of trim covers.
  • the stitched portion of the trim cover is bonded to the concave portion of the urethane pad with an adhesive along the shape of the concave portion.
  • the cushion seat or the seat back has a concave shape.
  • An accent line is formed, and a concave portion is formed in the urethane pad portion corresponding to the concave accent line of the cushion seat or seat back, and the stitched portion of the trim cover is bonded to the bottom surface of the concave portion with an adhesive. It is characterized by being pasted.
  • the urethane pad is mounted while heating the stitched portion of the trim cover on the convex portion of the mold on which the convex portion is formed.
  • the convex shape formed on the mold and the shape of the stitched portion are transferred to the urethane pad to form a concave portion on the urethane pad. I did it.
  • the cushion pad can be molded using a smaller number of molds, and the connection between the cushion pad and the skin base can be realized with fewer processes.
  • FIG. 2 is a cross-sectional view taken along the line AA of FIG. It is sectional drawing of the urethane pad of the vehicle seat which concerns on Example 1 of this invention. It is sectional drawing of the stitching
  • type which shows the process of bonding the urethane pad and trim cover of the vehicle seat which concern on Example 1 of this invention, and lowers the urethane pad and shows the state which the urethane pad started to hit the protrusion part of a lower mold
  • type It is sectional drawing of the front of the lower mold
  • FIG. 6 is a view showing another example of the sewing procedure of the trim cover of the vehicle seat according to the first embodiment of the present invention, and shows a state in which two trim covers are stitched with their end faces slightly shifted and overlapped;
  • FIG. 1 shows another example of the sewing procedure of the trim cover of the vehicle seat which concerns on Example 1 of this invention, and is sectional drawing of a trim cover which shows the state which opened the uppermost trim cover to the other side.
  • FIG. 1 shows the process of bonding the urethane pad and trim cover of the vehicle seat which concern on the modification 2 of Example 1 of this invention, and is a partial cross section of the urethane pad containing the recessed part of the state supplied with the adhesive agent, and its periphery
  • the seat back of the vehicle seat and the cushion seat are attached to the surface of the urethane pad formed of polyurethane by using an adhesive with a trim cover composed of an outer skin, a cover pad and a back base fabric. It was made to form.
  • the urethane pad used in this vehicle seat has a thermosetting property and has a property of shrinking and curing when heated.
  • the adhesive is heated with a hot melt adhesive to bond the urethane pad and the trim cover, and the surface is molded with a flat surface by the heat at the time of bonding.
  • the adhesive part was thermally shrunk and molded into a concave shape, thereby eliminating the need to mold various concave surfaces when molding the urethane pad.
  • the accent line 210 is formed on the cushion sheet 2 and the accent line 310 is formed on the seat back 3.
  • the cushion sheet 2 may be formed only on one of them.
  • the accent line 2 formed by the seat back 3 The number, size, and shape of 10 and 310 may be different.
  • FIG. 2 shows an arrow view of the AA cross section of the seat back 3 shown in FIG.
  • the cross section of the seat back 3 is formed by a urethane pad 31 and a trim cover 32 that covers the surface.
  • the urethane pad 31 is formed with a concave groove (recess) 30 corresponding to the accent line 310, and the surface of the concave (recess) groove 30 is also covered with the trim cover 32.
  • the trim cover 32 is an example in which three trim covers 32-1, 32-2, and 32-3 are stitched together.
  • the concave groove (recess) 30 corresponding to the accent line 310 is formed into a concave groove (recess) 30 when the urethane pad 31 is molded using a mold.
  • the trim cover 32 is fixed to the urethane pad 31 by a method using a hook-and-loop fastener as described in the background art section or a method using a wire.
  • the urethane pad 31 has a flat surface as shown in FIG. 3, and the trim cover 32 is attached in a state where the recess 30 is not formed.
  • the recess 30 is formed in the urethane pad 31 using a mold provided on the trim cover 32 side, and at the same time, the trim cover 32 is formed on the inner surface including the bottom surface of the recess 30. Was to be pasted.
  • FIG. 4 shows a cross-sectional configuration of the trim cover 32 attached to the urethane pad 31.
  • the trim cover 32 is configured by sewing three trim covers 32-1, 32-2, and 32-3.
  • the three trim covers 32-1, 32-2, and 32-3 may have the same or different skin color, pattern, and material.
  • a sheet-like hot melt adhesive 51 is formed at room temperature at the portions where the trim covers 32-1 and 32-2 and 32-2 and 32-3 are sewn together. Are sewn together.
  • the trim covers 32-1 and 32-2 are overlapped with their tip portions aligned.
  • the trim cover 32-1 is attached to the outer skin 32-1. 1. It is composed of a cover pad 32-12 and a backing base fabric 32-13. It is composed of an outer skin 32-21, a cover pad 32-22, and a back base fabric 32-23.
  • FIG. 4 In the state shown in FIG. 4, the trim cover 32-1 has a skin 32-11 and the trim cover 32-2 so that the skin 32-21 faces each other, and the trim covers 32-1 and 32-2 have 61 positions. The stitched state is shown.
  • the trim cover 32-1 and 32-2 are sewn to the left and right around the stitched portion 61, and the sheet-like hot melt adhesive 51 is placed on the opened lower portion. .
  • the trim cover 32-1 and the sheet-like hot melt adhesive 51 are folded at a portion 62 that is folded back from the stitched portion 60 of the trim cover 32-1 and overlapped. And stitch together.
  • the trim cover 32-2 and the sheet-like hot melt adhesive 51 are sewn together at the portion 63 that is folded back from the stitching portion 60 of the trim cover 32-2, and the sewing is completed.
  • the trim cover 32-1 and the trim cover 32 -2 are sewn at the overlapped portions 62 and 63, respectively, so that the thickness of the overlapped portions can be reduced compared to a case where two pieces are simply overlapped without sewing. it can.
  • FIG. 6 shows a cross-sectional structure of a mold (lower mold) 40 provided on the trim cover 32 side.
  • the lower mold 40 includes a pressing portion 41 and a heating portion 43, and the pressing portion 41 is formed with a protruding portion 42 for forming the shape of the recess 30 in the urethane pad 31.
  • the heating unit 43 has an introduction hole 44 for introducing high-temperature water vapor from an external water vapor supply source (not shown), a passage 45 through which the introduced high-temperature water vapor is passed, and water vapor in the passage 45 is pressed against the heating unit 43.
  • a supply hole 46 is provided to supply the back surface of the pressing portion 41, and the pressing portion 41 can be heated by high-temperature steam introduced from the outside.
  • the shape of the surface of the pressing portion 41 (the upper surface in FIG. 6) is matched to the surface shape of the urethane pad 31 shown in FIG.
  • a plurality of trim covers 32-1, 32-2, 32 are provided on the lower mold 40 shown in FIG. -3 and the hot melt adhesive 51 are sewn together, and the trim cover 32 is aligned with the stitching portion 60 so as to rest on the projection portion 42. Water vapor is supplied to heat the pressing portion 41, and the urethane pad 31 shown in FIG. 3 is pressed against the lower mold 40.
  • the concave portion 30 is formed in the urethane pad 31 along the shape of the stitching portion 60, and the stitching portion 60 of the trim cover 32 is attached to the concave portion 30 with the sheet-like hot melt adhesive 51. .
  • trim covers 3 are placed on the pressing portion 41 of the lower mold 40.
  • the trim cover 32 formed by stitching 2-1, 32-2, 32-3 together with the hot melt adhesive 51 is aligned so that the stitched portion 60 rests on the protruding portion 42 (S801).
  • a sheet-like adhesive (hot melt adhesive) 52 is placed on a portion other than the stitched portion 60 on the trim cover 32 supplied on the pressing portion 41 (S802).
  • a sheet-like adhesive (hot melt adhesive) 52 is placed on a portion other than the stitched portion 60 on the trim cover 32 supplied on the pressing portion 41 (S802).
  • the urethane pad 31 held by the upper mold 70 is placed on the upper part of the lower mold 40 by a conveying means (not shown) (S803).
  • the upper mold 70 arranged on the upper part of the lower mold 40 is moved in the direction of the arrow by means not shown. (Descent) (S805).
  • the upper die 70 continues to descend further, and the urethane pad 31 held by the upper die 70 is lowered and pressurized until it comes into full contact with the pressing portion 41 of the lower die 40 to be in the state shown in FIG. 7E (S8). 07). In this state, the urethane pad 31 and the trim cover 32 contract by being heated by the pressing portion 41 heated by high-temperature steam.
  • the stitched portion 60 of the trim cover 32 is bonded to the urethane pad 31 by the heated hot melt adhesive 51, and the protruding portion 42 of the lower mold 40 and the stitched portion 60 of the trim cover 32 are bonded to the urethane pad 31.
  • the corresponding shape is transferred, and the concave portion 30 corresponding to the shape of the protruding portion 42 and the stitched portion 60 of the trim cover 32 is formed (S808).
  • the trim cover 32 is pulled by the protrusion 42 of the lower mold 40 and enters the recess 30 and is bonded to the urethane pad 31 by the hot melt adhesive 51. Therefore, the trim cover 32 is formed on the urethane pad 31.
  • the surface is covered with a trim cover 32 including the stitching portion 60.
  • the stitched portion 6 has a cross-sectional shape as shown in FIG.
  • the seat back 3 is formed by replacing 01 with the stitching portion 60.
  • FIG. 9 shows a cross-sectional view of the urethane pad 31 and the trim cover 32 in a portion where the recess 30 is formed.
  • the urethane pad 31 is a lower mold 4 to which high-temperature water vapor is supplied when the trim cover is bonded.
  • a layer 312 that is heated and shrunk is formed on a portion close to the lower mold 40 by receiving heat from 0, that is, on the surface to which the trim cover 32 is bonded and in the vicinity thereof. Further, a layer 313 that is more contracted than the surroundings is formed at the bottom of the recess 30.
  • a layer 311 that maintains the original state without being affected by heat is formed in a part away from the lower mold 40 to some extent.
  • the upper mold 70 has been lowered with respect to the lower mold 40, but conversely, the lower mold 40 is raised with respect to the upper mold 70 to form and bond the recess. You may do it.
  • the trim covers 32-1 and 32-2, and the trim cover 3 Although the stitching portions 60 of 2-2 and 32-3 have been described by forming them in the steps shown in FIGS. 5A to 5C, in this embodiment, the trim covers 32-1 and 32-2, and The method of stitching the trim covers 32-2 and 32-3 is not limited to this.
  • the stitches may be sutured by the procedure shown in FIGS. 10A to 10D. That is, the two trim covers 32-1 and 32-2 are overlapped as shown in FIG. 10A. At this time, the lower right end portion of the trim cover 32-2 which is on the lower side is retracted from the right end portion of the trim cover 32-1. The orientation of the trim covers 32-1 and 32-2 at this time is superior to the relationship shown in the enlarged view on the right side of FIG. 5A. In this state, trim cover 32-1 And 32-2 are sewn together at the stitching point 61.
  • the right side of the stitched portion 61 is bent to the lower side on the left side of the stitched portion 61 around the stitched portion 61.
  • the uppermost trim cover 32-1 is folded back around the stitched portion 61.
  • the stitched portion 601 of the trim cover 32 shown in FIG. 2 corresponds to the state shown in FIG. 10C.
  • trim covers 32-1 and 32-2 are stitched together at the stitching point 64 where three trim covers 32-1 and 32-2 overlap.
  • Part 6 A trim cover 320 having 02 is formed.
  • FIG. 7F Using the trim cover 320 having the stitched portion 602 sewn in this manner, FIG. In the procedure of bonding the trim cover 32 and the urethane pad 31 described with reference to FIG. 7F, the trim cover 32 is replaced with the trim cover 320, whereby the stitched portion 601 is replaced with the stitched portion 602 in the cross-sectional shape as illustrated in FIG. The replaced seat back 3 is formed.
  • the molding process of the urethane pad alone is not required, and the urethane pad is molded and the trim cover is attached. It can be performed in one process, and the number of processes can be reduced.
  • a sheet-like adhesive (hot melt adhesive) 52 is placed on the trim cover 32 other than the stitching portion 60, and the trim cover 32 is pressed by the pressing portion 41 of the lower mold 40.
  • the portion along the concave shape of the accent line is formed in the stitched portion 60 in which the trim covers 32-1 and 32-2 shown in FIG. 5C are sewn together with the hot melt adhesive 51.
  • the trim covers 32-1 and 32-2 shown in FIG. 5C may be heated together with the hot melt adhesive 51 by pressing only the stitching portion 60 against the urethane pad 31.
  • the trim cover 32 sewed according to the procedure described with reference to FIGS. 5A to 5C is positioned above the urethane pad 31, and the pushing jig 71 is further placed above the trim cover 32. It arranges according to the position of 60.
  • the trim cover 32 is lowered by means not shown and placed on the urethane pad 31, and the stitching portion 60 of the trim cover 32 is pressed against the urethane pad 31 by the pressing jig 71. .
  • the steam nozzle 81 is inserted into a hole formed in a urethane pad (not shown) by means not shown and inserted into the urethane pad 31.
  • high-temperature steam 80 is supplied from the steam nozzle 81 to the inside of the urethane pad 31 through a supply pipe 82 from a steam supply source (not shown).
  • the steam nozzle 81 is provided so as to be positioned immediately below the stitching portion 60 of the trim cover 32, and the stitching portion 60 of the trim cover 32 is heated by the high-temperature steam 80 supplied from the steam nozzle 81.
  • the sheet-like adhesive 52 of the stitching portion 60 heated by the supplied high-temperature steam 80 is melted, and the portion where the stitching portion 60 and the urethane pad 31 are in contact is bonded.
  • the portion of the urethane pad 31 heated by the high-temperature steam with which the stitching portion 60 is pressed by the pressing jig 71 is compressed by the pressed stitching portion 60 and has a concave shape following the shape of the stitching portion 60.
  • the pressing jig 71 can be formed in a relatively small size, and the manufacturing facility can be made relatively compact.
  • Example 1 Although the case where the groove
  • a recess 301 for an accent line is formed when the urethane pad 31 is molded.
  • a liquid or stick-like adhesive 510 is supplied to the recess 301 as shown in FIG. 12B.
  • the trim cover 32 can be affixed to the urethane pad 31 as shown in FIG.
  • a spray-like adhesive may be supplied.
  • the sheet-like hot melt adhesive 51 is sewn together. First, sew only two trim covers.
  • a liquid or stick-like adhesive is applied to the urethane pad 31 having a flat surface as shown in FIG. Supply.
  • FIGS. 7B to 7F of the first embodiment The trim cover 32 can be affixed to the urethane pad 31 by executing the steps as described in the above, that is, the steps S802 to S811 in the flowchart shown in FIG.
  • a spray adhesive may be supplied instead of a liquid or stick adhesive.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Textile Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Seats For Vehicles (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
PCT/JP2016/071809 2015-08-06 2016-07-26 車両用シート及びその製造方法 WO2017022558A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-155843 2015-08-06
JP2015155843A JP6722430B2 (ja) 2015-08-06 2015-08-06 車両用シート及びその製造方法

Publications (1)

Publication Number Publication Date
WO2017022558A1 true WO2017022558A1 (ja) 2017-02-09

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PCT/JP2016/071809 WO2017022558A1 (ja) 2015-08-06 2016-07-26 車両用シート及びその製造方法

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WO (1) WO2017022558A1 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6878323B2 (ja) * 2018-01-24 2021-05-26 株式会社タチエス トリムカバー及び車両用シート
JP7013328B2 (ja) 2018-06-13 2022-01-31 株式会社タチエス シート
JP7163208B2 (ja) * 2019-02-01 2022-10-31 株式会社タチエス 車両用シート
CN110186595B (zh) * 2019-06-11 2021-07-02 深圳清华大学研究院 触觉传感结构、制备方法及应用

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0444843A (ja) * 1990-06-11 1992-02-14 Araco Corp シート用表皮の接着方法
JPH0724159A (ja) * 1993-05-10 1995-01-27 Nhk Spring Co Ltd シートおよびその製造方法
JPH07303770A (ja) * 1994-05-10 1995-11-21 Howa Kogyo Kk シート用表皮
JPH11104370A (ja) * 1997-09-30 1999-04-20 Ts Tec Kk 接着剤を用いたシートの製造方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4867826A (en) * 1987-08-28 1989-09-19 Actex, Inc. Method for making laminated foam articles
JP3006974B2 (ja) * 1993-06-16 2000-02-07 高島屋日発工業株式会社 表皮接着シートの製造方法
JP2007054383A (ja) * 2005-08-25 2007-03-08 Bridgestone Corp 車両用シート及びその製造方法
JP2012116289A (ja) * 2010-11-30 2012-06-21 Toyota Boshoku Corp 車両用シート

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0444843A (ja) * 1990-06-11 1992-02-14 Araco Corp シート用表皮の接着方法
JPH0724159A (ja) * 1993-05-10 1995-01-27 Nhk Spring Co Ltd シートおよびその製造方法
JPH07303770A (ja) * 1994-05-10 1995-11-21 Howa Kogyo Kk シート用表皮
JPH11104370A (ja) * 1997-09-30 1999-04-20 Ts Tec Kk 接着剤を用いたシートの製造方法

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JP2017030698A (ja) 2017-02-09

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