WO2006077902A1 - Siege de vehicule et procede de fabrication dudit siege - Google Patents

Siege de vehicule et procede de fabrication dudit siege Download PDF

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Publication number
WO2006077902A1
WO2006077902A1 PCT/JP2006/300685 JP2006300685W WO2006077902A1 WO 2006077902 A1 WO2006077902 A1 WO 2006077902A1 JP 2006300685 W JP2006300685 W JP 2006300685W WO 2006077902 A1 WO2006077902 A1 WO 2006077902A1
Authority
WO
WIPO (PCT)
Prior art keywords
synthetic resin
foamed synthetic
edge
hardness
seat
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2006/300685
Other languages
English (en)
Japanese (ja)
Inventor
Tomokazu Saito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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 Bridgestone Corp filed Critical Bridgestone Corp
Publication of WO2006077902A1 publication Critical patent/WO2006077902A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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

Definitions

  • the present invention relates to a seat pad in which two or more kinds of foamed synthetic resins having different hardness, density, etc. are molded in multiple colors, and a partition groove is present at the boundary between these different foamed synthetic resins,
  • the present invention relates to a vehicle seat composed of a skin that is embossed and bonded to the outer surface of a seat pad, and a method for manufacturing the same.
  • a seat surface of a vehicle seat is generally composed of a seat pad made of a foamed synthetic resin such as polyurethane foam and a skin covering the outer surface of the seat pad.
  • One method of attaching the epidermis to the seat pad is to press and adhere the epidermis to the outer surface of the seat pad. According to this attachment method, the epidermis can be attached to the seat pad at a low cost (easily and quickly).
  • the seat portion of the seat pad on which the vehicle occupant sits is made of a relatively low-hardness foamed synthetic resin. It is widely practiced that the side bank is composed of a relatively high hardness foamed synthetic resin.
  • a seat pad is widely manufactured by integrally molding a seat portion and a bank portion having different hardness by multi-color molding.
  • the foamed synthetic resin stock solution for the seat part and the foamed synthetic resin for the bank part are formed on the inner wall of the mold for forming the seat pad along the boundary between the seat part and each bank part.
  • a cutting wall is provided to prevent mixing with the undiluted solution.
  • the present invention relates to a vehicle seat comprising a sheet node having a partition groove at the boundary between foamed synthetic resins having different hardnesses, and a skin that is embossed and bonded to the outer surface of the seat pad.
  • An object of the present invention is to provide a vehicle seat in which streaks and steps due to the partition grooves are not easily noticeable on the surface of the skin, and a manufacturing method thereof.
  • the vehicle seat manufacturing method according to the first aspect of the present invention, two or more foamed synthetic resins having different hardnesses are subjected to multicolor molding, and the boundary is formed between the foamed synthetic resins having different hardnesses.
  • the vehicle seat is manufactured by embossing and bonding the outer skin to the outer surface of the seat pad where grooves are present. When the skin is embossed on the outer surface of the seat pad, the edge of the low-hardness foamed synthetic resin that faces the cut groove is engaged with the edge of the high-hardness foamed synthetic resin.
  • the vehicle seat of the second aspect is manufactured by the method for manufacturing the vehicle seat of the first aspect.
  • the vehicle seat according to the third aspect includes a seat pad having two or more types of foamed synthetic resin parts having different hardnesses, and having a partition groove at a boundary part between the foamed synthetic resin parts having different hardnesses. And an outer skin that is embossed and bonded to the outer surface of the seat pad. A stitched portion is provided in the epidermis, and the stitched portion is inserted into the partition groove.
  • two or more types of foamed synthetic irons having different hardnesses are used. It is fixed by a seat pad that has a multi-colored molding of fat and has a partition groove at the boundary between the foamed synthetic resins having different hardnesses, and a mating part installed at a location other than the partition groove on the seat pad.
  • a vehicle seat having a coated skin is manufactured. When the skin is drawn and fixed to the outside of the sheet node, the edge of the low-hardness foamed synthetic resin is overlapped with the edge of the high-hardness foamed synthetic resin across the partition groove.
  • the vehicle seat of the fifth aspect is manufactured by a vehicle seat manufacturing method.
  • the edge of the low-hardness foamed synthetic resin facing the partition groove is foamed on the high-hardness side. Since it is engaged with the edge of the synthetic resin, the partition groove is blocked by the edge of the low-hardness foamed synthetic resin, so that the partition groove is less noticeable on the surface of the skin.
  • the edge of the foamed synthetic resin on the low hardness side may be overlapped with the edge of the foamed synthetic resin on the high hardness side across the partition groove. Thereby, you may make it block this partition groove.
  • a convex portion is provided at the edge of the low hardness side foamed synthetic resin, and the convex portion is tilted toward the high hardness side of the foamed synthetic resin so that the edge of the high hardness side of the foamed synthetic resin. May be superimposed on each other.
  • the partition groove can be closed by this convex portion. Further, the convex portion can be overlapped over a wide range with the edge of the foamed synthetic resin on the high hardness side.
  • a concave portion that can engage with the convex portion may be provided at the edge of the foamed synthetic resin on the high hardness side, and the convex portion may be tilted into the concave portion. As a result, the convex portion can be made a relatively thick and durable material.
  • the partition groove may be inclined so that the foamed synthetic resin on the low hardness side rides on the foamed synthetic resin on the high hardness side. Thereby, the edge (or convex part) of the foamed synthetic resin on the low hardness side can be easily overlapped with the edge of the foamed synthetic resin on the high hardness side.
  • a convex portion may be provided at the edge of the low-hardness foamed synthetic resin, and the convex portion may be folded back into the partition groove. By doing so, since the partition groove is filled with the convex portion to the inside, the partition groove becomes more conspicuous on the surface of the skin.
  • the edge or protrusion of the low hardness side foamed synthetic resin may be bonded to the edge or recess of the high hardness side foamed synthetic resin.
  • the low hardness side and the high hardness When the vicinity of the boundary with the second side is pressed, both of them deform (collapse) together, and it is difficult for a difference in level to be generated or to be easily felt. Further, it is also possible to prevent a step from being generated due to the edge of the low hardness side protruding from the edge of the high hardness side or the force of the concave portion rising or shifting.
  • the skin may be continuously bonded from the outer surface of the low hardness side foamed synthetic resin to the outer surface of the high hardness side foamed synthetic resin.
  • the edge or convex part of the low-hardness side foamed synthetic resin and the edge or concave part of the high-hardness side foamed synthetic resin are bonded via this skin, so that the low-hardness side and the high-hardness side are In the vicinity of the boundary, it is difficult for a level difference to occur or it is difficult to be impressed.
  • a partition groove is formed in the seat pad.
  • this partition groove is hardly conspicuous on the surface of the skin.
  • partition groove a portion where the low-hardness side foamed synthetic resin and the high-hardness side foamed synthetic resin are engaged, and a sewing relief portion of a required depth on the surface layer side are provided, The stitched portion of the epidermis may be inserted into this sewn relief portion.
  • the partition groove can be further deepened, so that mixing can be effectively prevented and the side support can be further improved.
  • the partition groove can be thickened, that is, a mold for molding the partition groove can be made thick, which is advantageous in terms of moldability and demoldability.
  • the width of the sewing relief portion is 20 to 2 mm, and the special blade 3 to: LOmm, and the depth is 5 to 20 mm, particularly around 10 mm.
  • the combined depth of the partition groove engaging portion and the sewing escape portion is preferably 10 to 4 Omm, particularly around 30 mm.
  • FIG. 1 Figs. La and lb are longitudinal sectional views for explaining a method of manufacturing a vehicle seat according to an embodiment.
  • FIGS. 2a and 2b are cross-sectional views of main parts of the vehicle seat of FIG.
  • FIGS. 3a and 3b are cross-sectional views of main parts of the vehicle seat according to the embodiment.
  • FIGS. 4a and 4b are cross-sectional views of main parts of the vehicle seat according to the embodiment.
  • FIG. 5 is a cross-sectional view of a main part of the vehicle seat according to the embodiment.
  • FIGS. 6a and 6b are cross-sectional views of main parts of the vehicle seat according to the embodiment.
  • FIG. 7 is a cross-sectional view of a main part of the vehicle seat according to the embodiment.
  • FIGS. 8a and 8b are cross-sectional views of main parts of the vehicle seat according to the embodiment.
  • FIGS. 9a and 9b are cross-sectional views of a vehicle seat according to another embodiment.
  • FIG. 10 is a cross-sectional view of a vehicle seat according to another embodiment.
  • FIG. 11 is a cross-sectional view of a vehicle seat according to another embodiment.
  • FIG. 12 is a cross-sectional view of a vehicle seat according to another embodiment.
  • FIG. 13 is a cross-sectional view of a vehicle seat according to another embodiment.
  • FIG. 14 is a cross-sectional view of a vehicle seat according to another embodiment.
  • FIGS. La and lb are longitudinal sectional views for explaining a method of manufacturing a vehicle seat according to the embodiment.
  • Fig. La shows the state before wearing the skin
  • Fig. Lb shows the time when the wearing of the skin is completed.
  • Fig. 2a is an enlarged view of the heel portion of Fig. La
  • Fig. 2b is an enlarged view of the heel portion of Fig. Lb.
  • the vehicle seat includes a seat pad 10 having a seat portion 11 on which a vehicle occupant is seated and bank portions 12, 12 on both sides thereof, and an outer skin 20 covering the outer surface of the seat pad. And help.
  • the seat portion 11 is made of a urethane foam having a relatively low hardness
  • each bank portion 12 is made of a urethane foam having a relatively high hardness.
  • the seat portion 11 and the bank portions 12 and 12 are integrally formed by multicolor molding.
  • a partition wall (not shown) is provided to prevent mixing with the undiluted solution.
  • a partition groove 13 into which the partition wall has entered is formed at the boundary portion between the seating portion 11 and the bank portion 12 after demolding.
  • the partition groove 13 is open on the seat surface side of the seat pad 10.
  • the seat pad 10 shown in FIG. When used in a vehicle seat, the seat pad 10 is turned upside down.
  • Convex portions 14 are provided on both edge portions of the seating portion 11 facing the partition groove 13.
  • the convex portion 14 is formed integrally with the seating portion 11. As shown in an enlarged view in FIG. 2a, the side surface of the convex portion 14 facing the partition groove 13 is flush with the inner wall surface of the partition groove 13, and the side surface opposite to the convex portion 14 is the convex surface.
  • the slope surface is joined to the outer surface (seat surface) of the seating portion 11 while being inclined so as to be separated from the partition groove 13 toward the proximal end side from the distal end side of the portion 14.
  • the structure of the convex part 14 is not limited to this.
  • the height of the protruding portion 14 from the outer surface of the seating portion 11 is such that when the protruding portion 14 falls down to the bank portion 12 side, it protrudes from the edge of the bank portion 12 facing the partition groove 13.
  • the tip of the portion 14 is overlapped so that the partition groove 13 can be closed.
  • the tip side of the convex portion 14 has a wide upper surface force on the bank portion 12 sideward. You may comprise so that it may overlap.
  • the outer skin 20 is pressed by the outer skin mounting die 30 against the outer surface of the seat pad 10 on the seating surface side.
  • the mold 30 is provided with a cavity (reference numeral omitted) that covers the seat surface of the seat pad 10 completely.
  • the edge of the bank portion 12 has a rounded shape.
  • the convex portion 14 Since the convex portion 14 has a lower hardness than the bank portion 12, the convex portion 14 is pressed by the skin 20 and fits to the edge of the bank portion 12.
  • the convex portion 14 may be preliminarily overlapped with the edge of the bank portion 12 and temporarily fixed with an adhesive or a tape!
  • the seat pad 10 and the skin 20 are integrally taken out from the cavity to complete the vehicle seat.
  • the partition groove 13 between the seating portion 11 and the bank portion 12 is blocked by the convex portion 14, so that the skin 20 is embossed on the outer surface of the seat pad 10. Thereafter, the line of the cut groove 13 becomes hardly or not conspicuous on the surface of the skin 20.
  • the skin 20 is continuously bonded from the outer surface of the seating portion 11 to the outer surface of the bank portion 12 via the outer surface of the convex portion 14 (the slope surface).
  • FIGs. 3a and 3b are cross-sectional views of main parts of a vehicle seat according to another embodiment. The first
  • Fig. 3a shows the state before wearing the skin
  • Fig. 3b shows the state after wearing the skin.
  • the edge 12a of the bank portion 12 facing the partition groove 13 is moved backward from the extension line of the outer surface of the seating portion 11 to the back side of the partition groove 13.
  • the slope is inclined so that the closer to the partition groove 13 is, the deeper the partition groove is.
  • the convex portion 14 can be made relatively thick, and even when the convex portion 14 is thick, the convex portion 14 falls into the bank portion 12 side. Almost fits the edge 12a.
  • the retreat amount of the edge portion 12a from the extension line of the outer surface of the seating portion 11 and the thickness of the convex portion 14 are the deformation amounts of the convex portion 14 and the bank portion 12 when the skin 20 is mounted. Set with consideration It is.
  • FIGs. 4a and 4b are cross-sectional views of main parts of a vehicle seat according to still another embodiment.
  • 4a shows the state before the convex part enters the partition groove
  • FIG. 4b shows the state after the convex part enters the partition groove.
  • the convex portion 14 before attaching the skin 20 to the seat pad 10B, the convex portion 14 is folded back into the partition groove 13, and in this state, the skin 20 is attached to the outer surface of the seat pad 10B. Emboss.
  • the partition groove 13 is filled with the convex portion 14 to the inside, so that the line of the partition groove 13 becomes more conspicuous on the surface of the skin 20.
  • FIG. 5 is a cross-sectional view of a main part of a vehicle seat according to still another embodiment.
  • a partition groove 13 'inclined so that the seat 11 rides on the bank 12 is formed at the boundary between the seat 11 and the bank 12. .
  • the convex portion 14 can be easily fitted to the edge portion of the bank portion 12 with a relatively small amount of deformation.
  • the other configuration of the seat pad 10C and the method of attaching the skin 20 to the seat pad 10C are the same as those in the embodiment shown in FIGS.
  • Figs. 6a and 6b are cross-sectional views of the main part of a vehicle seat according to still another embodiment.
  • Fig. 6a shows a state before wearing the skin
  • Fig. 6b shows a state after wearing the skin. .
  • a concave portion 12b with which the convex portion 14 can be engaged is provided at the edge of the bank portion 12 facing the partition groove 13.
  • the convex portion 14 is tilted toward the bank portion 12 and engaged with the concave portion 12b.
  • the convex portion 14 has a large thickness up to the tip. Therefore, the durability of the convex portion 14 is improved.
  • the depth of the concave portion 12b is set in consideration of the thickness of the convex portion 14 and the deformation amounts of the convex portion 14 and the bank portion 12 when the skin 20 is mounted.
  • FIG. 7 is a cross-sectional view of the main part of the vehicle seat showing another example of the structure of the convex portion, and shows the state before the skin is mounted.
  • a slab 15 is attached to the outer surface (seat surface) of the seat portion 11.
  • the edge of the slab 15 faces the partition groove 13.
  • a convex portion 14 ′ is provided at the edge of the slab 15.
  • the shape of the convex portion 14 ′ is the same as that of the convex portion 14 in each of the above-described embodiments.
  • the other configuration of the seat pad 10E is the same as that of the embodiment shown in Fig. La-2b.
  • FIGS. 8a and 8b are cross-sectional views of the main part showing an example of the configuration of such a vehicle seat.
  • FIG. 8a shows the state before wearing the skin
  • FIG. 8b shows the state after wearing the skin.
  • a partition groove 13 ' that is inclined so that the seat 11 rides on the bank 12 is formed at the boundary between the seat 11 and the bank 12.
  • a concave portion 12b that can engage with the convex portion 14 is provided at the edge portion of the bank portion 12 facing the partition groove 13 ′.
  • the convex portion 14 can be made thick to the tip, and even the convex portion 14 having the thickness to the tip is tilted toward the bank portion 12 side. It is easy to fit into the recess 12b when retracted.
  • FIGS. 9a and 9b are cross-sectional views showing an embodiment of the third aspect.
  • Fig. 9a is a sectional view of the seat pad
  • Fig. 9b is an enlarged view of a part of the vehicle seat.
  • the seat pad 10G in Figs. 9a and 9b has a seating portion 11 and a bank portion 12, similar to the seat pads 10 and 10A to 1 OF of the above-described embodiments, and a partition groove 13 in the bank portion 12. Is provided.
  • the epidermis is obtained by stitching the epidermis 21 on the seating portion side and the epidermis 22 on the bank portion 12 side.
  • the stitched portion 23 between the epidermis 21 and 22 is inserted into the partition groove 13.
  • the partition groove 13 is inconspicuous.
  • the hard stitched portion 23 is stored in the cut groove 13, the seated passenger does not feel the stitched portion 23 hard.
  • the skin 22 is drawn into the hanging groove 40 of the seat pad 10G and is supported by the wire 41.
  • the present invention is also applicable to an adhesive sheet (adhesive sheet pad) 10H in which urethane foams having different hardnesses are bonded to each other.
  • the seat pad 10H is also provided with a partition groove 13 in the same manner as in FIG. 9, and the stitched portions 23 of the skins 21 and 22 are stored in the partition groove 13. For this reason, the hard stitched portion 23 is not felt by the occupant.
  • the other structures in FIG. 10 are the same as those in FIG. 9b, and the same reference numerals indicate the same parts.
  • the force that the partition groove exists between the seating portion and the bank portion of the seat pad may have partition grooves in other portions, and may be divided into a plurality of locations. There is a groove.
  • the present invention uses a high-performance (high cost) blended synthetic resin for the bottom of the hips that affects sitting comfort, riding comfort, durability, and the like, for example, sitting comfort, riding comfort, durability, etc. It can also be applied to a pad formed by integrally molding a foamed synthetic resin having a low density, a light weight and a low cost in a portion that hardly affects the surface, and a manufacturing method thereof.
  • FIG. 11 a part of the partition groove where the low-hardness side foam synthetic resin and the high-hardness side foam synthetic resin are engaged with each other, and a sewing relief part having a required depth on the surface layer side is formed. It is provided, and the stitched portion of the epidermis is inserted into the sewn relief portion.
  • the present invention is a sheet in which the skin formed by adhesive molding is engaged with the hanging bag by the engaging part, and only the end portion of the pad without the skin hanging line is composed of high hardness. Even if it is applied to a pad called different hardness at the end, it can be applied.
  • the skin is not bonded to the seat pad, but is engaged by the wire and the engaging part, but the boundary between the high hardness member and the low hardness member is in a portion where there is no sewing line on the skin. It has a certain structure. For this reason, some differences in height have been made so that it is difficult to feel a sense of incongruity at steps. If the pads of this configuration are further devised as claimed in claims 2 to 8, the uncomfortable feeling is further reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Seats For Vehicles (AREA)

Abstract

L'invention concerne un siège de véhicule, dans lequel les lignes et irrégularités de niveau créées par les rainures de séparation dans le coussin du siège sont moins visibles sur la surface du revêtement, et un procédé de fabrication dudit siège. Le siège de véhicule est composé d'un coussin de siège (10) avec une partie d’assise (11) sur laquelle l'occupant du véhicule s’assoie, d'appuis latéraux (12, 12) des deux côtés de la partie d’assise et d'un revêtement de surface (20) pour recouvrir la surface extérieure du coussin de siège. Une rainure de séparation (13) est formée à la limite entre la partie d’assise (11) et chaque appui latéral (12). Des saillies (14) sont prévues au niveau des deux bords, faisant face aux rainures de séparation (13), de la partie d’assise (11). Lors du gaufrage du revêtement de surface (20) sur la surface extérieure du coussin de siège (10), les saillies (14) sont retournées sur les côtés des appuis latéraux (12) de sorte que les saillies (14) soient superposées sur des bords des appuis latéraux (12), faisant face aux rainures de séparation (13), pour fermer les rainures de séparation (13).
PCT/JP2006/300685 2005-01-21 2006-01-19 Siege de vehicule et procede de fabrication dudit siege Ceased WO2006077902A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2005-014328 2005-01-21
JP2005014328 2005-01-21
JP2005-318534 2005-11-01
JP2005318534A JP2006223840A (ja) 2005-01-21 2005-11-01 車両用シート及びその製造方法

Publications (1)

Publication Number Publication Date
WO2006077902A1 true WO2006077902A1 (fr) 2006-07-27

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ID=36692287

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/300685 Ceased WO2006077902A1 (fr) 2005-01-21 2006-01-19 Siege de vehicule et procede de fabrication dudit siege

Country Status (2)

Country Link
JP (1) JP2006223840A (fr)
WO (1) WO2006077902A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5262264B2 (ja) * 2008-04-18 2013-08-14 トヨタ紡織株式会社 車両用シートパッド体の製造法
JP2015226671A (ja) * 2014-06-02 2015-12-17 東洋ゴム工業株式会社 シートパッド

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970548U (ja) * 1982-11-02 1984-05-14 株式会社東洋クオリティワン クツシヨン体
JPH0213430U (fr) * 1988-07-12 1990-01-26
JPH0638799U (ja) * 1992-10-31 1994-05-24 株式会社タチエス 車両用シートの表面構造

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5970548U (ja) * 1982-11-02 1984-05-14 株式会社東洋クオリティワン クツシヨン体
JPH0213430U (fr) * 1988-07-12 1990-01-26
JPH0638799U (ja) * 1992-10-31 1994-05-24 株式会社タチエス 車両用シートの表面構造

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