US20060254692A1 - Method for assembling articles - Google Patents
Method for assembling articles Download PDFInfo
- Publication number
- US20060254692A1 US20060254692A1 US11/118,900 US11890005A US2006254692A1 US 20060254692 A1 US20060254692 A1 US 20060254692A1 US 11890005 A US11890005 A US 11890005A US 2006254692 A1 US2006254692 A1 US 2006254692A1
- Authority
- US
- United States
- Prior art keywords
- base
- cavity
- cushion material
- coating material
- mold
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 76
- 239000000463 material Substances 0.000 claims abstract description 287
- 239000011248 coating agent Substances 0.000 claims abstract description 114
- 238000000576 coating method Methods 0.000 claims abstract description 114
- 229920002635 polyurethane Polymers 0.000 claims abstract description 10
- 239000004814 polyurethane Substances 0.000 claims abstract description 10
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 238000000151 deposition Methods 0.000 claims abstract description 4
- 239000006260 foam Substances 0.000 claims description 20
- 230000001681 protective effect Effects 0.000 claims description 18
- 239000003973 paint Substances 0.000 claims description 7
- -1 leathers Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 5
- 229920002554 vinyl polymer Polymers 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 4
- 239000005060 rubber Substances 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 3
- 239000012948 isocyanate Substances 0.000 claims description 3
- 150000002513 isocyanates Chemical class 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims 2
- 239000010410 layer Substances 0.000 description 72
- 238000007493 shaping process Methods 0.000 description 6
- 238000009423 ventilation Methods 0.000 description 6
- 125000003118 aryl group Chemical group 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229920000544 Gore-Tex Polymers 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229920001903 high density polyethylene Polymers 0.000 description 1
- 239000004700 high-density polyethylene Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 238000010107 reaction injection moulding Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
Images
Classifications
-
- 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
- B60N2/70—Upholstery springs ; Upholstery
- B60N2/7017—Upholstery springs ; Upholstery characterised by the manufacturing process; manufacturing upholstery or upholstery springs not otherwise provided for
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/08—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles using several expanding or moulding steps
- B29C44/083—Increasing the size of the cavity after a first part has foamed, e.g. substituting one mould part with another
- B29C44/086—Increasing the size of the cavity after a first part has foamed, e.g. substituting one mould part with another and feeding more material into the enlarged cavity
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/58—Moulds
- B29C44/582—Moulds for making undercut articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D99/00—Subject matter not provided for in other groups of this subclass
- B29D99/0092—Producing upholstery articles, e.g. cushions, seats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J1/00—Saddles or other seats for cycles; Arrangement thereof; Component parts
- B62J1/08—Frames for saddles; Connections between saddle frames and seat pillars; Seat pillars
-
- 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
- B29L2031/751—Mattresses, cushions
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
- Y10T156/10—Methods of surface bonding and/or assembly therefor
Abstract
Methods and tools for assembling an article are provided. The method includes providing a mold having a cavity configured as a desired shape, positioning a base within the mold so that a surface of the base material is exposed, applying a coating material, e.g., urethane or polyurethane, to substantially cover both the exposed surface of the base and an inner surface of the cavity, depositing a cushion material into the cavity and sealing the cavity with the exposed surface of the base so that the coating material forms a skin around the cushion material and adheres the cushion material to the base.
Description
- The invention provides methods and tools for assembling articles, e.g., seats for vehicles.
- Recreational vehicles, such as all-terrain vehicles, personal watercraft, snowmobiles, and motorcycles are generally provided with seats having a cushion material attached to a seat base. The cushion material is generally surrounded by a protective coating, e.g., a waterproof coating. Vehicle seats are often made by assembling separately produced components such as the seat base, cushion material, protective cover and one or more fastening components. A piece of cushion material is often separately manufactured and then covered with a piece of protective material such as vinyl or leather. A portion of the protective cover is then stapled, stitched, screwed, glued or attached using any other fastening component to a seat base. If an emblem is desired, it is often stitched onto the protective cover. The stitches, staples and other such fastening components create holes in the cover. Recreational vehicles are often exposed to moisture, e.g., water and snow and this moisture often seeps through the holes in the protective cover, causing the cushion material to mildew. The moisture also degrades the fastening components, e.g., by corroding the staples, stitches, screws or other fasteners or reducing the adhesiveness of an exposed glue. Thus, it is desirable to have a method of assembling seat components that does not require fastening components.
- This type of assembly process also tends to be very labor intensive. First, each part of the seat must be separately manufactured and/or provided. Then, a laborer must assemble the seat by putting all of the parts together. Some laborers are often more skilled than other laborers, so the quality of the finished seat often varies depending on the skill of the laborer. It would also be desirable to provide a more standardized assembly process which is less labor intensive and more repeatable from a quality standpoint.
- Assembly processes of this nature are also very costly, since several parts must be manufactured or in some cases, purchased from another source. Additionally, laborers must be compensated for their time and skill in assembling seats. Thus, it would also be desirable to provide an assembly process which has reduced costs.
- Methods and tools for assembling an article, e.g. a seat for a vehicle are provided. The improved method provides several advantages. For example, the method provides a more simplified process wherein fewer components such as staples and protective covers are needed. The method also reduces the labor needed, e.g., by eliminating the need for assembling several components in several steps. The method also standardizes the assembly process, thereby ensuring that the quality of the finished article is more repeatable and does not depend on the skill of the laborer. Thus, the improved method substantially reduces the chance of operator error and allows for the articles to be produced on a larger scale.
- An article is also provided having a base and a cushion material, wherein the cushion material has an outer protective covering of a coating material and the base and cushion material are adhered together by a layer of coating material. Methods and tools for making such articles are also provided. In preferred embodiments, the coating material comprises urethane and polyurethane. A variety of urethanes and polyurethanes are suitable for use with the invention. In some cases, an aromatic polyurethane is used. In other cases, an aliphatic polyurethane is used. One suitable aromatic polyurethane that works particularly well is distributed by BASF Corporation, a company based in Florham Park, N.J. and is available under the product number NB#19747-5-54 titled “Spray Aromatic Urethane Elastomer Skin for Non-Automotive Seating Applications”. Another suitable urethane for adhering the base and cushion is distributed by Lord Corporation, a company based in Cary, N.C. and is available under the product number 7542 A/B.
- In certain embodiments, an article, e.g., a seat, having a base and a cushion material is provided. The base can be any substrate upon which a cushion material is to be attached. In some cases, the cushion material includes an inner breathable cavity. The cushion material is itself adhered to the base by a layer of coating material and is also covered or lined with a protective layer of coating material. The layer of coating material covering the outer surface of the cushion material functions to protect and seal the cushion material. The layer is also waterproof, thereby giving the cushion material waterproof protection.
- In certain embodiments, the article comprises a seat for a recreational vehicle, e.g., an all-terrain vehicle, a motorcycle, a moped, a scooter, a utility vehicle, a snowmobile or a personal watercraft. The seat includes a seat base having a top surface adhered to a cushion material via a layer of coating material and a bottom surface being configured to be mounted on a seating area of a vehicle. A layer of coating material also covers and protects the outer surface of the cushion material. In some cases, the coating material cover displays a desired texture, one or more emblems, colors or other visible features. More than one layer of coating material can also be used, e.g., wherein one layer forms a protective surface and one or more other layers are placed over such protective surface and include the desired texture, emblems or other features. In certain cases, the features are selected from the group consisting of decals, fabrics, vinyls, leathers, rubbers and paints.
- Molds for producing an article are also provided. The mold includes a hollow cavity configured as a desired shape. For example, a mold for assembling a vehicle seat can be provided having a cavity shaped for producing a desired seat, e.g., a motorcycle seat, an ATV seat and the like. The hollow cavity has an opening which is generally smaller in cross-sectional area than the hollow interior. The opening is configured for receiving a lid, which seals the opening and also the cavity. The lid can be provided as part of the mold itself, e.g., being attached to the mold near the opening of the cavity via a hinged connection or the lid can be provided separately.
- Certain molds can be provided for shaping the cushion material where as others are provided for adhering the cushion material to a base. In some cases, the mold is configured for shaping the cushion material and receives a lid which imparts a desired shape or design to the top of the cavity. In some cases, the underside of the lid imparts a desired shape into the cavity. The lid can also include a downwardly extending protrusion which imparts a desired shape to the closed cavity when the lid is in place. In some cases, the lid underside has the same properties of the top portion of a desired seat base and imparts a shape having that profile into the top of the cavity. In other cases, the lid underside has the same profile as the top portion of a desired seat base and further includes a protrusion which imparts a space or groove into the cushion for forming a breathable cavity. When the cushion material is deposited into the cavity and the lid is closed, it will be formed to have a shape having the profile of the top portion of a desired seat base, so the top portion can later be mated with the cushion material.
- In other cases, the mold receives a base, e.g. seat base, within the cavity. A cushion material can either be shaped in a previous shaping cavity or it can be shaped in the cavity receiving the base. When the cushion material is formed in a previous cavity, the pre-formed cushion material is inserted into the cavity and a layer of coating material is deposited on either the exposed top surface of the cushion material or the bottom surface of the base. The base is then inserted into the cavity so that the top surface is in contact with the layer of coating material and the cavity is closed. The layer of coating material adheres the top surface of the base to the cushion material. The completed article is then removed from the mold. In some cases, the pre-formed cushion material can be placed into a fixture, and then the base can be adhered to the cushion material through a layer or bead of coating material. Thus, the step of adhering the cushion material to a seat base need not always be done by using a mold.
- When the cushion material is formed in the cavity receiving the base, the interior surface of the cavity can be lined with a layer of coating material and then a cushion material, e.g., an expandable foam, can be deposited into the cavity. A layer or a bead of coating material can also be deposited onto the top surface of the base, which is affixed to the lid. The lid is then placed over the cavity opening so that the base is inside of the cavity. The expandable foam expands to the volume of the cavity and also adheres to the layers of coating material lining the cavity and the top surface of the base. Thus, the foam adheres to the top surface of the base. In some cases, the coating material applied to the interior surface of the cavity so that the coating material seals and protects the cushion material. In other cases, the coating material is not applied to the interior cavity but is applied only to adhere the cushion material to the base. In most cases, the coating material is applied so that it both seals and protects the cushion material and also adheres the cushion material to the base. The completed article is then removed from the mold.
- In other embodiments, a system including a series of molds for producing articles is provided. In such a system, at least one mold is configured for shaping a cushion material and at least one mold is configured for attaching a base to the cushion material. In certain embodiments, the system includes a primary mold and a secondary mold. The primary mold shapes and forms the cushion material, which is then transferred to a secondary mold, which attaches the cushion material to a base. The primary mold has an opening which is smaller in cross-sectional area than the opening of the secondary mold. Also, the primary mold is adapted for receiving a lid having a shaped underside and/or a downwardly extending protrusion wherein the secondary mold is adapted for receiving a base inside of the cavity. The wider opening of the secondary mold is generally provided so that a base material can easily be positioned inside of the cavity. Once the base is in place, the secondary mold is sealed with a lid so the base and cushion material adhere together. In some cases, the cushion material and attached base are removed from the secondary mold and placed in another mold which is configured for applying an additional layer of coating material which includes desired textures, emblems, colors and other visible features.
- In some embodiments, an assembly tool is provided for producing an article. The tool includes a mold having a cavity configured as a desired shape. The tool also provides a lid for sealing the cavity. In certain cases, the tool has two portions, a first portion and a second portion, which are adapted to be closed against one another. In some cases, the first portion and second portion are connected together, e.g., by one or more hinges, so that they can be pivoted against one another and closed. When closed together, the portions form a rectangular structure or locked box. However, the closed tool can form any other suitable structure as well.
- In some cases, the second portion includes a cavity for shaping a cushion material and the first portion includes a lid which closes against the opening of the cavity and seals it shut. The lid includes a downwardly extending protrusion which extends into the cavity when the two portions are closed together. This protrusion imparts a shape into the cavity.
- In other cases, the second portion includes a cavity configured for receiving and attaching a base material to a cushion material. In yet other cases, the second portion includes a cavity configured for both shaping a cushion material and also for attaching a base material to the cushion material. In these cases, the first portion has a lid which temporarily holds in place a base, which is positioned and released within the cavity when the first and second portions are closed together.
- Methods for producing articles, e.g., seats of the invention are also provided. In certain methods, an article is assembled using a single mold. In other methods, an article is assembled using a series of molds. Each mold can be provided alone or as a part of a seat-assembly tool. One method includes providing a base, e.g., a seat base and a mold having a cavity for receiving the base. The base has a top surface and a bottom surface, the top surface being configured for contacting the cushion material. The top surface of the base is optionally flame treated and then a layer of coating material is applied to both the base and the inner cavity. This layer of coating material can be applied to both at the same time or at different times. For example, in some cases, a layer of coating material is first applied to the interior surface. Then, a cushion material, e.g., expandable foam, is deposited into the cavity. The top surface of the base material is then lined with a layer of coating material and placed inside of the cavity so that the top surface comes into contact with the cushion material. The cavity is then sealed and the layer of coating material between the top surface of base material and the cushion material adheres these two parts together. The coating material lining the interior surface of the cavity also adheres to the cushion material to form a protective cover.
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FIG. 1 is a perspective view of a seat base according to an embodiment of the invention. -
FIG. 2 is a perspective view of a seat according to an embodiment of the invention -
FIG. 3 is an upside down perspective view of the seat ofFIG. 2 . -
FIG. 4 is a cross-sectional view of a primary mold having a cavity according to an embodiment of the invention. -
FIG. 5 is a cross-sectional view of a secondary mold having a cavity according to an embodiment of the invention. -
FIG. 6 is a cross-sectional view of a primary mold having a lid according to an embodiment of the invention. -
FIG. 7 is a cross-sectional view of the primary mold ofFIG. 6 having a shaped cushion material according to an embodiment of the invention. -
FIG. 8 is a cross-sectional view of a secondary mold receiving the shaped cushion material ofFIG. 7 according to an embodiment of the invention. -
FIG. 9 is a cross-sectional view of the secondary mold ofFIG. 8 receiving a seat base according to an embodiment of the invention. -
FIG. 10 is a cross-sectional view of a primary mold having a lid according to another embodiment of the invention. -
FIG. 11 is a cross-sectional view of the primary mold ofFIG. 10 having a shaped cushion material according to an embodiment of the invention. -
FIG. 12 is a cross-sectional view of a secondary mold receiving the shaped cushion material ofFIG. 11 according to an embodiment of the invention. -
FIG. 13 is a cross-sectional view of the secondary mold ofFIG. 12 receiving a seat base according to an embodiment of the invention. -
FIG. 14 is perspective view of a seat-forming tool adapted to receive a seat base according to an embodiment of the invention. -
FIG. 15 is perspective view of the seat-forming tool ofFIG. 14 having the seat base mounted thereon according to an embodiment of the invention. -
FIG. 16 is a perspective view of the seat-forming tool ofFIG. 14 in a closed configuration. - Embodiments of the invention will now be described with reference to methods and tools for assembling a vehicle seat. However, it should be understood that the methods and tools can be used for assembling other articles as well.
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FIG. 1 illustrates aseat base 12 according to an embodiment of the invention, which includes atop surface 14 and abottom surface 16. Theseat base 12 has a desired shape depending upon the vehicle in which it is used. The base typically comprises a rigid plastic component e.g., HDPE, formed by a molding process. However, the base can be made of any suitable material which adheres to the coating material. Thetop surface 14 is adapted for being adhered to a cushion material and thebottom surface 16 is configured to be mounted on a seating area of a given vehicle, e.g., an all-terrain vehicle, a motorcycle, a snowmobile, moped, scooter, utility vehicle or a personal watercraft. Thebottom surface 16 often includes a number of ribs, which imparts structural integrity to the base, although this is not required. Theseat base 12 also includes a forwardnarrow portion 20 for allowing the operator's legs increased room for comfort. In some cases, the seat bases include aventilation aperture 15, which allows the cushion material to breathe. Often times, the cushion material itself contains a breathable cavity and air is allowed to enter into this breathable cavity through thisventilation aperture 15. Of course, this ventilation aperture is purely optional. - The seat base is generally attached directly to a vehicle frame or to a rear cab portion of the vehicle. The base can be mounted to the vehicle according to a wide variety of mounting techniques known in the art. In some cases, the
bottom surface 16 has a slide in hook type fastener (not shown) at thenarrow portion 20 which holds the front of the base down upon the vehicle and includes a latching mechanism (not shown) at the opposite end of the seat base which attaches the seat to the vehicle. This effectively secures the base in place upon a vehicle. In addition, the seat may also include a backrest section (not shown) for an operator or passenger. -
FIGS. 2 and 3 illustrate an assembledvehicle seat 10 according to an embodiment of the invention. Theseat 10 includes aseat base 12 having atop surface 14 and abottom surface 16. Acushion material 18 is adhered to thetop surface 14 of theseat base 12 by a layer of coating material (not shown) and without the use of staples or other mechanical fasteners. In some cases, thecushion material 18 includes an inner breathable cavity (not shown). Thebottom surface 16 of theseat base 12 remains exposed after theseat 10 is completed, so theseat 10 can be attached to an appropriate place in or on a vehicle. - The
cushion material 18 also has anouter covering 48 of coating material, which serves to protect and waterproof thecushion material 18. A rider sits on thecushion material 18 and covering ofcoating material 48 when operating the vehicle. The covering 48 can include one or more seat features 22, e.g., definition lines, patterns, emblems and textures, depending on how a designer wants the seat to look. This is especially useful as designers generally desire hard lines on the seat for styling. The covering may also include paints and/or decals embedded therein. Such features are incorporated within thecoating material cover 48. This covering 48 can be comprised of a single layer of coating material or more than one layers. In some cases, a first inner layer of coating material is provided which serves a protective cover and a second outer layer of coating material is provided over the first layer and includes the desired seat features. These layers are generally applied separately to the cushion material while in different molds. - A mold is also provided for producing a seat according to an embodiment of the invention. The mold has a hollow cavity for producing a cushion material having a desired shape. The cavity has an opening which is generally smaller in cross-sectional area than the hollow interior. The shape, size and topography of the cavity will largely depend on the type of seat being made, e.g., a motorcycle seat, an ATV seat, a snowmobile seat and the like. The hollow cavity can also have areas or crevices configured as lines, patterns, textures or other features desired to be imparted into the
coating material cover 48 itself. The layer of coating material fills the crevices defining the detailed features and once hardened, retains these features. One advantage of such process is that such desired features can be imparted into the layer of coating material covering the seat without having to insert rigid objects into the seat to create these features. Additionally, the hollow cavity can include one or more ditches, which receives paints or decals. When the coating material is deposited into the cavity, such paints and decals become embedded in the coating material covering once hardened. - In the illustrated embodiment, a
vehicle seat 10 is assembled using aprimary mold 24 and asecondary mold 26. With reference toFIGS. 4 and 5 , theprimary mold 24 includes acavity 28 and anopening 32 to thecavity 28 and thesecondary mold 26 includes acavity 30 and anopening 34 to thecavity 30. Theopening 32 of theprimary mold 24 is smaller in cross-sectional area than theopening 34 of thesecondary mold 26. Theprimary mold 24 is adapted for receiving a lid having an underside and/or a downwardly extending protrusion, which imparts a desired shape to the top of thecavity 28, as will be described hereinafter. The lid also seals theopening 32 of thecavity 28. Thesecondary mold 26 is adapted for receiving aseat base 12 within thecavity 30 and also for receiving a lid to seal theopening 34 of thecavity 30. In many cases, the seat base is attached to the underside of the lid. Thelarger opening 34 of thesecondary mold 26 makes it easier for aseat base 12 to be positioned within thecavity 30. - The primary and
secondary molds - The
primary mold 24 is adapted for receiving a lid having an underside and/or downwardly extending protrusion, which imparts a shape to the top of thecavity 28. The lid underside can have a variety of shapes. The lid underside generally has the same profile or shape as the top surface of a desired seat base and imparts a shape into a cavity having that same profile. In many cases, the lid underside also contains a downwardly extending protrusion which imparts a groove or space into the cushion material for a breathable cavity. When the cushion material is deposited into the cavity and then allowed to harden, it has a portion retaining a shape corresponding to the top portion of a desired seat base, so the top portion can later be mated with the cushion material. -
FIGS. 6 and 7 illustrate aprimary mold 24 having alid 36 having anunderside 40 according to one embodiment andFIGS. 10 and 11 illustrate aprimary mold 24 having alid 38 having anunderside 42 and protrusion according to another embodiment. With reference toFIGS. 6 and 7 , themold 24 receives alid 36 having anunderside 40 having a profile or shape which is the same or substantially similar to thetop portion 14 of the seat base show inFIG. 9 . Once thelid 36 is secured about theopening 32, theunderside 40 imparts ashape 44 into the cavity (as shown inFIG. 7 ) which corresponds to shape of thetop surface 14. - With references to
FIGS. 10 and 11 , themold 24 in this embodiment receives alid 38 having anunderside 42 which also includes a protrusion which extends into the cavity for forming a breathable cavity. Theunderside 42 of the lid also has a shape which is similar to thetop portion 14 of the seat base but also includes a protrusion which extends deeper. Once thelid 38 is secured about theopening 32, theunderside 42 imparts ashape 46 into the cavity (as shown inFIG. 11 ) which corresponds to the shape of thetop surface 14 and also a groove which extends further into the cavity for forming the breathable cavity. - Referring to
FIGS. 9 and 13 , thesecondary mold 26 is configured to receive aseat base 12 inside of thehollow cavity 30. Theopening 34 to the cavity is wide enough so that aseat base 12 can be passed through into thecavity 30. Thesecondary mold 26 is also configured to receive a lid (not shown), which holds theseat base 12 in place against thecushion material 18 and also seals theopening 34 of the cavity. - A method will now be described using the primary and secondary molds as part of an assembly process. A method of assembling a seat will now be described with reference to
FIGS. 6-9 . Referring toFIG. 6 , aprimary mold 24 is provided, which has acavity 28 receiving alid 36 having a rectangular shaped protrusion. The interior surface of the cavity is then covered with a first layer ofcoating material 48. In some cases, the interior surface of the cavity is sprayed with a spray of coating material. Additionally, the interior surface of thecavity 28 can also have areas or crevices configured as lines, patterns, textures or other features desired to be imparted into thecushion material 18 itself. The first layer ofcoating material 48 fills the crevices defining the detailed features and once hardened, retains these features. - Once the
cavity 28 is lined with a first layer ofcoating material 48, acushion material 18 is then deposited into thecavity 28. The first layer ofcoating material 48 is generally allowed to cure or harden before depositing thecushion material 18 into the cavity. Suitable cushion materials for providing the inner structure of theseat base 12 include any pourable liquid plastic, sculpted bun stock, and expandable foam. While a variety of cushion materials can be used for this purpose, expandable foam, e.g., isocyanate foam is preferred. The expandable foam can be injected into thecavity 28 using an injection tool, e.g. a reaction injection molding machine, known in the art. With reference toFIG. 6 , thelid 36 is then closed against themold 24 so that thecavity 28 is sealed andlid underside 40 extends into the cavity. The foam or other expandable material is then allowed to expand and fill the volume of thecavity 28. During this time, the first layer ofcoating material 48 lining the interior surface of thecavity 28 also adheres to thecushion material 18 and solidifies to form an outer protective layer. - In some cases, more than one different type of cushion material is used. For example, different types of cushions, e.g., foams can be positioned in different areas about the cavity to provide varying levels of hardness in different areas of the cushion. In other cases, an inflatable air cushion is placed into the cavity so that the operator can inflate or deflate the cushion to a desired comfort level. When the cushion is inflated, the surrounding cushion material presses against the outer covering, providing a harder, rigid seat. When the cushion is deflated, the surrounding cushion material no longer pressures against the outer covering, providing a softer seat.
- Once the foam has fully expanded and solidified, the
lid 36 is removed to expose thecavity 28. As shown inFIG. 7 , thecushion material 18 has a shape corresponding to the internal volume of thecavity 28. Thecushion material 18 also includes ashape 44 on its top, which corresponds to the profile of thetop portion 14 of the seat base. The first layer ofcoating material 48 forms a protective cover protecting the external surface of thecushion material 18 except for the surfaces formed by theshape 44, which contacted thelid underside 40 and did not receive the first layer ofcoating material 48 during forming. Thecushion material 18 is then removed from theprimary mold 24. - In many cases, one or more release agents can be used for ensuring that the cushion material and coating material layers are easily released from the mold. For example, Chemtrend CT1007 Wax, a release agent distributed by Chem Trend, a company located in Howell, Mich., may be applied, e.g., wiped, to the mold in areas not in contact with the coating material layer to facilitate release of the cushion material from contact with the mold surface. Likewise, 567 Release is a product distributed by W. N. Shaw and Company, a company located in Villa Ridge, Mo., that is sprayed onto the mold in areas not in contact with the coating material layer to release the cushion material from contact with the surface of the mold cavity itself. ACMOS 36-5111-343 Release is another release product distributed by ACMOS, a company located in Bremen, Germany. The ACMOS product can be used to release the coating material layers from contact with the surface of the mold cavity and is sprayed onto the mold in areas in contact with the coating material layer. The Chem Trend CT1007 Wax typically is applied only once prior to the production run, whereas the W. N. Shaw and Company 567 Release and ACMOS 36-5111-343 are generally applied before each molding cycle. Of course, application of these mold releases may vary.
- The
cushion material 18 formed in theprimary mold 24 shown inFIGS. 6 and 7 is then placed into asecondary mold 26 shown inFIGS. 8 and 9 . Thesecondary mold 26 has ahollow cavity 30 that corresponds to thehollow cavity 28 of theprimary mold 24, so that thecushion material 18 formed in theprimary mold 24 also fits within thecavity 30 of thesecondary mold 26. However, thesecondary mold 26 has awider opening 34 then theprimary mold 24, so parts of the exterior surface lined with the first layer ofcoating material 48 are exposed at the top of thecavity 30. Then, the top, exposed surface of thecushion material 18 is lined with a second layer ofcoating material 50. Areas of the exterior surface already lined with the first layer ofcoating material 48 will now also be lined with a second layer ofcoating material 50. However, the surface lining theshape 44 only has the second layer ofcoating material 50. - A
seat base 12 is provided having atop surface 14 and abottom surface 16. With reference toFIG. 9 , thetop surface 14 of theseat base 12 is positioned within thecavity 30 in contact with the second layer ofcoating material 50 and thecavity 30 is then closed with a lid (not shown). In most cases, thetop surface 14 of theseat base 12 is mateable with theshape 44 in thecushion material 18. Theseat base 12 can also be flame treated before being positioned within thecavity 30. Flame treatment can be performed by applying a flame, e.g. from a blowtorch, to a given surface, which removes oils and other contaminants which would prevent or decrease adherence of coating material to that surface, as well as, altering the surface properties of the material. - The entire surface area of the
seat base 12 can be flame treated or only thetop surface 14 which is positioned in contact with thecushion material 18. The second layer ofcoating material 50 adheres thetop surface 14 of theseat base 12 to thecushion material 18 to form aseat 10. Theseat base 12 may be additionally heated so that when it comes in contact with the second layer ofcoating material 50 it alters the cure time. Theseat 10 is then removed from thesecondary mold 26 and is later mounted in a vehicle. Generally the strength of the connection between theseat base 12 and thecushion material 18 is strong so that theseat 10 can easily be removed from thesecondary mold 26. Alternatively, thecushion material 18 formed in theprimary mold 24 shown inFIGS. 6 and 7 could simply be placed in a holding fixture (not shown) such that theseat base 12 is clamped to thecushion material 18 after the second layer ofcoating material 50 is applied between thecushion material 18 and theseat base 12. Theseat base 12 again may be flame or heat treated to strengthen the bond of the second layer ofcoating material 50 between thecushion material 18 and theseat base 12. - A method of assembling a seat having a breathable cavity will now be described with reference to
FIGS. 10-13 .FIGS. 10-13 illustrate a method of forming aseat 10 wherein thecushion material 18 contains abreathable cavity 52. This method is similar to the method already described with reference toFIGS. 6-9 . The main difference in these methods is that the method ofFIGS. 10-13 provides abreathable cavity 52 in thecushion material 18. - Referring to
FIG. 10 , aprimary mold 24 is provided, which has acavity 28 for receiving alid 38 having anunderside 42 which also contains a downwardly extending protrusion. The protrusion extends deeper into thecavity 28 than theunder side 42 and forms a space or groove which becomes thebreathable cavity 52. The interior surface of thecavity 28 is then covered with a first layer ofcoating material 48. In certain cases, the interior surface of thecavity 28 is sprayed with a spray of coating material. - Once the
cavity 28 is lined with the first layer ofcoating material 48, acushion material 18, e.g., an expandable foam is then deposited into thecavity 28. Referring toFIG. 10 , thelid 38 is then closed against themold 24 so that thecavity 28 is sealed and thelid underside 42 extends into the cavity. The foam is then allowed to expand and fill the volume of thecavity 28. During this time, the first layer ofcoating material 48 lining the interior surface of thecavity 28 also adheres to thecushion material 18 and solidifies to form an outer protective layer. - After the foam has solidified, the
lid 38 is removed to expose thecavity 28. As shown inFIG. 11 , thecushion material 18 has a shape corresponding to the internal volume of thecavity 28. Thecushion material 18 also includes ashape 46 on its top, which was imparted into the material by thelid underside 42. The first layer ofcoating material 48 forms a protective cover over the external surface of thecushion material 18 except for surface lining the area ofshape 46, which contacted thelid underside 42 during forming and did not receive this first layer ofcoating material 48. Thecushion material 18 is then removed from theprimary mold 24. - The
cushion material 18 is then placed into asecondary mold 26 shown inFIGS. 12 and 13 . Thesecondary mold 26 has ahollow cavity 30 that corresponds to thehollow cavity 28 of theprimary mold 24 ofFIGS. 10 and 11 , so that thecushion material 18 formed in theprimary mold 24 also fits within thecavity 30 of thesecondary mold 26. However, thesecondary mold 26 has awider opening 34 then theprimary mold 24, so parts of the exterior surface lined with the first layer ofcoating material 48 are exposed at the top of thecavity 30. Then, either the top, exposed surface of thecushion material 18 or thetop surface 14 of aseat base 12 is lined with a second layer ofcoating material 50. Those parts of the exterior surface already lined with the first layer ofcoating material 48 will also receive the second layer ofcoating material 50, so that two layers are provided in these areas. The surface in the area ofshape 46 does not have a first layer ofcoating material 48, so this area will only have a second layer ofcoating material 50. - The
seat base 12 includes atop surface 14 and abottom surface 16. With reference toFIG. 13 , thetop surface 14 of theseat base 12 is positioned within thecavity 30 in contact with the top, exposed surface of thecushion material 18 with the second layer ofcoating material 50 adhering the two surfaces together. Thecavity 30 is then closed with a lid (not shown). Thetop surface 14 of theseat base 12 is mateable with theshape 46 in thecushion material 18, but not with the lower groove of theshape 46, which forms thebreathable cavity 52. In this case, when theseat base 12 is placed within thecushion material 18, abreathable cavity 52 is left in the interior of thecushion material 18. Thebreathable cavity 52 is also lined with the second layer ofcoating material 50, which forms a protective cover for thebreathable cavity 52. Theseat base 12 can also be flame treated before being positioned within theshape 46. The second layer ofcoating material 50 in contact with theseat base 12 adheres thetop surface 14 of theseat base 12 to thecushion material 18 to form aseat 10. In some cases, theseat base 12 includes aventilation aperture 15, which provides an air passage through theseat base 12 into thebreathable cavity 52. - The
breathable cavity 52 can serve several different purposes depending on the configuration of the seat. For example, in cases where theseat base 12 does not contain one or more ventilation apertures, the seat base 12 (and the second layer of coating material 50) fully seals the breathable cavity, so that air is trapped inside and air cannot move in or out. In these cases, the trapped air in thecavity 52 imparts rigid support and less flexibility to the cushion material. Such a rigid cushion material may be desirable in certain applications. In cases where theseat base 12 does include one or more ventilation apertures, the apertures provide an air passage to thebreathable cavity 52 when theseat base 12 is positioned against the cushion material. Air enters into thebreathable cavity 52 when a rider is not sitting on the seat and is expelled from thebreathable cavity 52 out through the apertures when a rider sits on the seat. In this case, the air trapped in the cavity acts like a spring when riding the vehicle, providing more comfort for the rider. In addition, thecushion material 18 may not be sealed by the second layer of sprayedcoating material 50 within thebreathable cavity 52. Such a layer of coating material can be strategically applied to the top surface of the seat base or to the exposed cushion material so that coating material does not cover the apertures. This allows air trapped inside the cushion material to be expelled when the rider sits on the seat. When the rider leaves the seat, the air travels back into the cushion material. In most cases, the cushion material and breathable cavity are shielded from water intrusion since the apertures are located on the underside of the seat between the cushion material and the vehicle. However, in some cases, it may be desirable to provide a seat base having its entire surface or one or more surfaces covered with a vapor permeable, liquid impermeable membrane, e.g., Gortex brand, to ensure that no water or liquid is ingested into the cavity while still allowing air and gases to pass in and out of the breathable cavity. - The primary and secondary molds can also each be part of a
seat assembly tool 58. For example, with reference toFIGS. 14-16 , aseat assembly tool 58 is illustrated according to an embodiment of the invention. Theseat assembly tool 58 in this embodiment includes a secondary mold or mold wherein aseat base 12 is attached to thecushion material 18 via a layer of coating material. Thetool 58 comprises afirst portion 60 and asecond portion 62. The first and second portions are connected together byhinges 64 and can be closed against one another to close thetool 58, as shown inFIG. 16 . When closed together, thetool 58 forms a rectangular structure, as shown inFIG. 16 . However, theclosed tool 58 can form any other suitable structure as well. - Referring to
FIGS. 14 and 15 , thefirst portion 60 of the tool has abase receiving area 66 which temporarily receives abottom surface 16 of theseat base 12. Thebase receiving area 66 has grooves and other configurations that are mateable with those configurations seen on thebottom surface 16 of theseat base 12. Aseat base 12 is simply placed within the receivingarea 66 and is temporarily locked in place. The base can be temporarily held in place by numerous methods including using clamps, clips, Velcro and the like.FIG. 15 illustrates thetool 58 wherein thefirst portion 60 is loaded with aseat base 12 and is ready for use. - The
second portion 62 of thetool 58 generally functions as a mold and includes acavity 68 having a desired shape. Thesecond portion 62 can be a primary mold, secondary mold, or other mold. In the illustrated embodiment, thesecond portion 62 includes a secondary mold or other mold designed for affixing aseat base 12 to thecushion material 18. The outer perimeter of thecavity 68 is configured to correspond to the outer perimeter of theseat base 12 so that once thetool 58 is closed together, theseat base 12 is placed within thecavity 68 and the opening is sealed. - While the illustrated
seat assembly tool 58 includes a secondary mold configured to receive a seat base, it should be understood that tools including a primary mold are also within the scope of the invention. In such tools, the first portion includes a lid having a protrusion rather than a seat base receiving area. When the first and second portions are closed together, as shown inFIG. 16 , the protrusion extends downwardly into the cavity of the second portion to impart shape into thecushion material 18. Additionally, it should be understood that tools including molds other than primary or secondary molds are within the scope of the invention. - Thus, embodiments of the invention are disclosed. One skilled in the art will appreciate that the present invention can be practiced with embodiments other than those disclosed. The disclosed embodiments are presented for purposes of illustration and not limitation, and the present invention is limited only by the claims that follow.
Claims (49)
1. A method of assembling an article, the method comprising the steps of:
providing a mold having a cavity configured as a desired shape;
positioning a base within the mold so that a surface of the base material is exposed;
applying coating material to substantially cover both the exposed surface of the base and an inner surface of the cavity; and
depositing a cushion material into the cavity and sealing the cavity so that the coating material forms a skin around the cushion material and adheres the cushion material to the base.
2. The method of claim 1 wherein the coating material is comprised of urethane.
3. The method of claim 1 wherein the coating material is comprised of polyurethane.
4. The method of claim 1 wherein the applying the coating material includes spraying the coating material.
5. The method of claim 1 wherein the cushion material comprises an expandable foam.
6. The method of claim 5 wherein the expandable foam comprises an expandable isocyanate foam.
7. The method of claim 1 wherein the cushion material comprises one or more different materials.
8. The method of claim 1 wherein the base is a flame treated base.
9. The method of claim 1 wherein the cavity of the mold has a surface including one or more features so that the coating material retains such features when it forms a skin.
10. The method of claim 9 wherein the one or more features is selected from the group consisting of decals, fabrics, vinyls, leathers, rubbers and paints.
11. The method of claim 9 wherein the one or more features includes textures.
12. The method of claim 1 wherein the mold includes a lid and the positioning a base within the mold so that a surface of the base is exposed comprises removably attaching the base to the lid.
13. The method of claim 12 wherein the sealing the cavity with comprises closing the lid.
14. The method of claim 1 wherein the mold comprises a first portion and a second portion, the first portion adapted to receive the base and the second portion configured as a cavity, wherein sealing the cavity comprises sealing the first and second portions together.
15. The method of claim 14 wherein the positioning a base within the mold so that a surface of the base material is exposed comprises loading the base into the first portion so that a surface of the base is exposed.
16. A method of assembling an article, comprising the steps of:
applying coating material into a cavity of a mold that defines a desired profile;
depositing expandable cushion material into the cavity of the mold;
closing a lid of the mold and allowing the expandable cushion material to expand to a volume defined by the mold and the lid;
opening the lid; and
adhering a base to the expandable cushion material by applying a coating material between the base and the expandable cushion material.
17. The method of claim 16 wherein the coating material is comprised of urethane.
18. The method of claim 16 wherein the coating material is comprised of polyurethane.
19. The method of claim 16 wherein the applying the coating material includes spraying the coating material.
20. The method of claim 16 wherein the expandable cushion material comprises one or more expandable foams.
21. The method of claim 20 wherein at least one expandable foam comprises an expandable isocyanate foam.
22. The method of claim 16 wherein the base is a flame treated base.
23. The method of claim 16 wherein the cavity of the mold has a surface including one or more features so that the coating material retains such features when it forms a skin.
24. The method of claim 23 wherein the one or more features is selected from the group consisting of decals, fabrics, vinyls, leathers, rubbers and paints.
25. The method of claim 23 wherein the one or more features includes textures.
26. The method of claim 16 wherein the lid contains an underside which projects into the cavity to impart a shape in the expandable cushion material once expanded.
27. The method of claim 26 wherein the base is configured to mate with the shape in the expandable cushion material created by the underside.
28. The method of claim 26 wherein the underside of the lid further includes a protrusion which projects deeper into the cavity than the underside to impart a shape in the expandable cushion material once expanded to form a breathable cavity.
29. The method of claim 28 wherein the base is configured to mate with the shape in the expandable cushion material created by the underside so that the breathable cavity is formed between the base and the expandable cushion material.
30. The method of claim 16 further comprising removing the expandable cushion material from the cavity and placing the expandable cushion material into a cavity of a secondary mold before adhering the base to the expandable cushion material.
31. The method of claim 30 wherein the opening of the cavity of the secondary mold is larger than the opening of the cavity from which the expandable cushion material is removed.
32. The method of claim 16 further comprising removing the expandable cushion material from the cavity and placing the expandable cushion material into a fixture prior to adhering the base to the expandable cushion material.
33. The method of claim 32 wherein applying a coating material between the base and the expandable cushion material comprises placing a bead of coating material between the base and the expandable cushion material.
34. The method of claim 16 wherein applying a coating material between the base and the expandable cushion material seals the expandable cushion material with the coating material.
35. The method of claim 16 wherein applying a coating material between the base and the expandable cushion material does not seal the expandable cushion material with the coating material.
36. The method of claim 35 wherein a vapor permeable, liquid impermeable membrane is applied to the article to seal the expandable cushion material from liquid.
37. An article comprising a base and a cushion material having a skin comprised of a coating material, wherein the base and the cushion material are bonded together by the coating material.
38. The article of claim 37 wherein the coating material is comprised of urethane.
39. The article of claim 37 wherein the coating material is comprised of polyurethane.
40. The article of claim 37 wherein the cushion material further includes an outer protective covering.
41. The article of claim 40 wherein the outer protective covering is comprised of urethane.
42. The article of claim 40 wherein the outer protective covering is comprised of polyurethane.
43. The article of claim 40 wherein the outer protective covering further includes one or more features.
44. The article of claim 43 wherein the one or more features is selected from the group consisting of decals, fabrics, vinyls, leathers, rubbers and paints.
45. The article of claim 43 wherein the one or more features includes textures.
46. The article of claim 37 wherein the article is a seat for a vehicle.
47. An article comprising a base and a cushion material having a skin comprised of a coating material, the article being made according to the method of claim 1 .
48. A vehicle having a seat made according to the method of claim 1 .
49. The vehicle of claim 48 wherein the vehicle is selected from a group consisting of a motorcycle, moped, scooter, all terrain vehicle, utility vehicle, and personal watercraft.
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US12/436,455 US8057717B2 (en) | 2005-04-29 | 2009-05-06 | Method for assembling articles |
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Cited By (3)
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US20080060967A1 (en) * | 2006-09-07 | 2008-03-13 | Ming-Chi Chang | Toolbox with covers covering upon an outer surface of the box body |
EP2006152A3 (en) * | 2007-06-06 | 2009-08-19 | GM Global Technology Operations, Inc. | Cushion for a motor vehicle, motor vehicle seat with such a cushion and method for manufacturing such a cushion |
US11571843B2 (en) * | 2017-05-16 | 2023-02-07 | Archem Inc. | Foam molding mold and method for manufacturing foam molding body |
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FR2990903B1 (en) * | 2012-05-25 | 2014-06-20 | Cera | AUTOMOTIVE VEHICLE SEAT MAINASSURE |
JP6249726B2 (en) * | 2013-11-11 | 2017-12-20 | テイ・エス テック株式会社 | Vehicle seat |
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US20080060967A1 (en) * | 2006-09-07 | 2008-03-13 | Ming-Chi Chang | Toolbox with covers covering upon an outer surface of the box body |
EP2006152A3 (en) * | 2007-06-06 | 2009-08-19 | GM Global Technology Operations, Inc. | Cushion for a motor vehicle, motor vehicle seat with such a cushion and method for manufacturing such a cushion |
US11571843B2 (en) * | 2017-05-16 | 2023-02-07 | Archem Inc. | Foam molding mold and method for manufacturing foam molding body |
Also Published As
Publication number | Publication date |
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WO2006119105A3 (en) | 2007-05-10 |
US20090212455A1 (en) | 2009-08-27 |
WO2006119105A2 (en) | 2006-11-09 |
US8057717B2 (en) | 2011-11-15 |
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