WO1998030377A1 - Encapsulated window assembly including an in-molded periphery seal - Google Patents
Encapsulated window assembly including an in-molded periphery seal Download PDFInfo
- Publication number
- WO1998030377A1 WO1998030377A1 PCT/US1998/000660 US9800660W WO9830377A1 WO 1998030377 A1 WO1998030377 A1 WO 1998030377A1 US 9800660 W US9800660 W US 9800660W WO 9830377 A1 WO9830377 A1 WO 9830377A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- seal
- mold
- support member
- periphery
- assembly
- Prior art date
Links
- 238000000034 method Methods 0.000 claims abstract description 21
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 239000012778 molding material Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 23
- 238000011065 in-situ storage Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 4
- 230000013011 mating Effects 0.000 claims description 3
- 230000001788 irregular Effects 0.000 claims description 2
- 239000011521 glass Substances 0.000 description 22
- 230000000712 assembly Effects 0.000 description 11
- 238000000429 assembly Methods 0.000 description 11
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000000295 complement effect Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000001747 exhibiting effect Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 238000010107 reaction injection moulding Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000005340 laminated glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000012899 standard injection Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920002725 thermoplastic elastomer Polymers 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Classifications
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
- B29C45/14377—Coating a portion of the article, e.g. the edge of the article using an additional insert, e.g. a fastening element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J10/00—Sealing arrangements
- B60J10/20—Sealing arrangements characterised by the shape
- B60J10/23—Sealing arrangements characterised by the shape assembled from two or more parts
- B60J10/235—Sealing arrangements characterised by the shape assembled from two or more parts the parts being joined along their longitudinal direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J10/00—Sealing arrangements
- B60J10/80—Sealing arrangements specially adapted for opening panels, e.g. doors
- B60J10/82—Sealing arrangements specially adapted for opening panels, e.g. doors for movable panels in roofs
Definitions
- the present invention relates generally to encapsulated window assemblies comprising a polymeric frame or gasket member surrounding peripheral regions of a glass sheet and, in particular, to encapsulated window assemblies such as vehicle roof panels including a preformed, olded- in-place periphery seal.
- the invention also relates to the mold and process used in forming such window assemblies.
- fixed window assemblies for vehicles were comprised of a plurality of elements including adhesive elements applied around the marginal edges of the glass sheet, suitable mechanical fasteners such as metal clips, and exterior decorative trim strips disposed to cover the marginal edges of the glass sheet and the adjacent portions of the vehicle frame.
- Such window structures were costly, especially from a labor standpoint, since it was necessary to assemble the individual elements along the vehicle assembly line.
- unitary window assemblies of the type illustrated in U.S. No. 4,072,340 were developed. These assemblies included a sheet of glass, an adjacent frame, and a casing or gasket of molded material, such as poly (vinyl chloride), extending between the frame and peripheral edge of the window to hold the sheet of glass and the frame together. Fasteners were provided at spaced locations along the frame such that the entire assembly could be guided into location over the opening in a vehicle body as a unit.
- Other types of unitary window assemblies are disclosed in U.S. Patent Nos. 3,759,004 and 4,364,595. While such unitary window structures gradually reduced the time required to mount the window assembly in the associated vehicle, such structures were relatively costly, since the individual components required to produce each window unit generally required manually assembly.
- single sheets of glass and laminated glass assemblies were formed with integral frame or gasket members molded by a reaction injection molding (RIM) process.
- RIM reaction injection molding
- U.S. Patent No. 4,561,625 is illustrative of such a process and resulting product, and is incorporated herein by reference.
- Such an assembly can be readily attached to the material defining the periphery of a window opening, for example, during the manufacturing of a vehicle.
- the frame or gasket member is formed of a polyurethane material.
- periphery seals have been used to insure a watertight seal between the window assembly and the window opening.
- periphery seals have been used, they have typically been secured to the gasket member of the window assembly following the molding process, using either double-sided adhesive materials or X ⁇ snap-fit" type mechanical interlocking means. Both of these methods require relatively expensive post-molding, labor intensive procedures, may result in gaps between the periphery seal and the gasket member and therefore an incomplete seal, and are prone to the eventual separation of the periphery seal from the gasket member.
- This invention is directed to a process for forming an encapsulated window assembly comprising a gasket member surrounding a peripheral region of a transparent sheet and a peripheral seal secured to the gasket member.
- a mold is provided having cooperating first and second mold sections defining a mold cavity.
- the peripheral region of the transparent sheet, as well as a preformed periphery seal assembly, are positioned within the mold cavity.
- the periphery seal assembly includes an elastomeric seal secured to a seal support member, with the seal support member being relatively rigid as compared with the elastomeric seal.
- the mold is closed, bring the mold sections into facing relationship, whereby opposed surfaces of the seal support member of the periphery seal assembly are engaged between a surface of the first mold section and a surface of the second mold section. Then, a molding material is injected into the mold so as to fill the mold cavity, thereby forming the gasket member. The molding material flows about the peripheral region of the transparent sheet and the seal support member of the periphery seal assembly. A suitable time is allowed to pass to allow the molding material to solidify, and the mold is opened and the encapsulated window assembly is removed therefrom.
- the process of the invention may advantageously be employed to provide an encapsulated glazing unit comprising a transparent sheet of frangible material, a polymeric gasket molded and cured in situ around at least a portion of the peripheral margin of the transparent sheet, and a periphery seal assembly molded and fused in situ to the gasket simultaneously with the molding and curing thereof.
- the periphery seal assembly includes an elastomeric seal secured to a seal support member, with the seal support member being relatively rigid as compared with the elastomeric seal.
- a top surface of the seal support member and an adjacent top surface of the elastomeric seal are substantially coplanar with a major surface of the sheet of frangible material, there being substantially no gap between the respective top surfaces of the seal support member and elastomeric seal.
- Fig. 1 is an enlarged, fragmentary sectional view of a mold, in the closed condition, used to form a window assembly in accordance with the invention
- Fig. 2 is an enlarged, fragmentary sectional view of the mold of Fig. 1 with a glass sheet and a preformed periphery seal positioned therein;
- FIG. 3 is an enlarged, fragmentary sectional view of the mold of Fig 2 after formation of the gasket member;
- Fig. 4 is a perspective view of the molded window assembly formed in accordance with the invention following removal from the mold shown in Figs. 1-3; and
- Fig. 5 is an enlarged, fragmentary sectional view of the window assembly taken along the lines 5-5 of Fig. 4.
- a mold 10 including cooperating upper and lower mold sections, for forming a window assembly in accordance with the invention.
- the upper mold section 12 typically includes a groove 14 in which an upper mold seal 16 is positioned.
- the seal 16 may be formed of a silicon rubber material and can be secured within the groove 14 by means of a suitable adhesive.
- the seal 16 can be secured within the groove 15 by mechanical means, such as by providing the seal 16 and groove 14 with spaced-apart tabbed portions and corresponding tab receiving means (not shown) .
- the upper mold section 12 is preferably formed with a tapered portion 18 which angles downward toward the lower mold section in such a manner that the lower surface of the upper mold half 12 will contact the glass sheet only near its peripheral edge, as illustrated in Fig. 2.
- an additional seal (not shown) could be provided in a corresponding groove in the upper mold section 12 such that said seal was in contact with the upper surface of the glass sheet, and contact between the mold sections and the glass sheet is avoided.
- the upper mold section 12 is also provided with a downwardly extending sealing projection 20 which contacts the periphery seal during the molded process.
- the sealing projection 20 includes a protruding main portion 22 and a lip portion 24.
- the mold 10 also includes a lower mold section 30 which cooperates with the upper mold section 12.
- the lower mold section 30 includes a groove 32 in which a lower mold seal 34 is positioned.
- the seal 34 may be formed of a silicon rubber material and can be secured within the groove 32 by means of a suitable adhesive or by mechanical means, as discussed above.
- the lower mold section 30 is further provided with a positioning structure, such as projection 36, for positioning a periphery seal assembly in the lower mold half relative to the glass sheet.
- the projection 36 is shaped to mate with a corresponding recess formed in a portion of the periphery seal assembly, as shown in Fig. 2.
- a recess could be formed on the lower mold section 30 with a corresponding projection formed on the periphery seal assembly, or a combination of complementary projections and recesses could be provided respectively on the mold section 30 and seal assembly.
- mold sections 12 and 30 are typically formed, for example, of a metallic material such as steel or aluminum, other types of substantially non-resilient materials can be used. Suitable means (not shown) are conventionally provided to open and close the mold sections 12 and 30. In addition, each of the mold sections 12 and 30 can be provided with passageways (not shown) for circulating a suitable coolant therethrough.
- the mold sections 12 and 30 cooperate to define a chamber for receiving a sheet 40 of transparent material, such as glass, on which a gasket member is to be formed. Referring to Fig. 2, a glass sheet 40 is positioned so that an outer peripheral portion of the lower surface thereof rests on the lower mold seal 34. The glass sheet 40 is initially formed into the desired shape to conform, for example, with the sheet metal of the vehicle into which the window assembly is to be installed.
- a periphery seal assembly 42 is also positioned on the lower mold section 30.
- the periphery seal assembly 42 of the invention more particularly includes an elastomeric seal 44 and a seal support member 46.
- the seal 44 which provides the watertight contact with the window opening (not shown) .
- the seal support member 46 secures the elastomeric seal 44 to the molded gasket member of the window assembly.
- the seal support member 40 includes a depression or recess 48 which is complementary to the projection 36 formed in the lower mold section 30.
- the seal support member 46 is further provided with an irregular inwardly facing portion, such as the generally L-shaped extension 50 shown in Figs. 2, 3 and 5.
- the cooperation of the extension 50 with the molded gasket member provides a more secure mechanical attachment between the periphery seal assembly 42 and the gasket member.
- the periphery seal can be formed with a single-piece construction of a material having a Shore A hardness of at least about 50.
- the seal 44 and seal support member 46 are separate pieces which are then securely attached together by suitable means.
- the periphery seal assembly 42 is formed by co-extruding a material and thereby integrally bonding the support member 46 with the elastomeric seal 44.
- the periphery seal assembly 42 may be formed by bonding the support member 46 to the seal 44 with a suitable adhesive material, by providing mechanical interlocking means therebetween, or by other known methods.
- the seal support member 46 of the periphery seal assembly 42 is formed of a material which exhibits sufficient dimensional stability to withstand the pressures exerted by the mold 10 and the injection process utilized. Where the seal 44 and support member 46 are formed of separate materials, as is preferred, the support member 46 is preferably formed of a material which exhibits a Shore A hardness of at least about 90.
- the seal 44 of the periphery seal assembly 42 is formed of a flexible material exhibiting a hardness which is less than that of the support member 46. Preferably, the seal 44 is formed of a material exhibiting a Shore A hardness of between about 40 and 50.
- the seal 44 and support member 46 are both formed of two different blends of a thermoplastic rubber with poly (vinyl chloride) .
- the glass sheet 40 is suitably positioned on the lower mold seal 34.
- the periphery seal assembly 42 is also positioned on the lower mold section 30, with the depression 48 mating with the complementary projection 36 in the lower mold section 30.
- the upper mold section 12 is then lowered into position, as illustrated in Fig. 2. In this position, the upper mold seal 16 contacts the upper surface of the lower mold section 30. In addition, the projection 20 of the upper mold section 12 contacts the periphery seal assembly 42.
- the protruding main portion 22 of the projection 20 contacts the seal 46, so that the seal 46 is compressed between the projection 20 and the upper surface of the lower mold section 30.
- the lip portion 24 of the projection 20 is maintained in sealing engagement with an upper edge of the mounting member 46 of the periphery seal assembly 42.
- the lip portion 24 preferably contacts only as much of the upper edge of the mounting member 46 as is necessary to provide a sufficient sealing engagement therebetween. In this manner, there will be little or no gap between the respective upper surfaces of the support member 46 and seal 44 in the finished window assembly.
- a cavity 52 is formed by the surfaces of the glass sheet 40, the lower mold seal 34, the upper surface of the lower mold section 30, the mounting member 46, and the lower surface of the upper mold section 12, including the lip portion 24 of the projection 20.
- a suitable polymeric material is introduced into the cavity 52, either in a standard injection molding process or in a reaction injection molding (RIM) process.
- the injected polymeric material flows throughout the cavity 52, including into any recess formed by the extension 50 on the mounting member 46, to form the gasket member 54 of the window assembly.
- the finished window assembly 60 is shown in Figs. 4 and 5 after removal from the mold 10.
- the window assembly 60 is formed as a vehicle roof panel, with the gasket member 54 and periphery seal 42 extending about the entire periphery of the glass sheet 40.
- the window assembly 60 includes the glass sheet 40, the molded gasket member 54, and the periphery seal assembly 42. As illustrated in Fig. 5, upon removal from the mold
- the seal 44 returns to its pre-molded position, leaving little or no gap between the respective upper surfaces of seal 44 and the support member 46.
- the embodiments of the invention illustrated in the drawings and described herein concern a window assembly having a single sheet of glass, it will be appreciated that the invention can be readily incorporated in a window assembly consisting of a laminated composite employing two or more sheets of glass.
- the preferred embodiment of the invention is described as a vehicle roof panel, it will be appreciated that the assembly may also be advantageously employed as a vehicle window or as a window in a building structure.
- the glass sheet material can also be replaced by plastic sheet material to evolve a product having many of the same inherent advantages.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Seal Device For Vehicle (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53125498A JP4646083B2 (en) | 1997-01-10 | 1998-01-09 | Enclosed window assembly with molded peripheral seal |
EP98902525A EP1015221A4 (en) | 1997-01-10 | 1998-01-09 | Encapsulated window assembly including an in-molded periphery seal |
BR9807977-8A BR9807977A (en) | 1997-01-10 | 1998-01-09 | Encapsulated including a peripheral seal molded in place and forming process |
AU59161/98A AU5916198A (en) | 1997-01-10 | 1998-01-09 | Encapsulated window assembly including an in-molded periphery seal |
CA002276746A CA2276746A1 (en) | 1997-01-10 | 1998-01-09 | Encapsulated window assembly including an in-molded periphery seal |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3536597P | 1997-01-10 | 1997-01-10 | |
US60/035,365 | 1997-01-10 | ||
US09/002,805 | 1998-01-05 | ||
US09/002,805 US5997793A (en) | 1997-01-10 | 1998-01-05 | Encapsulated window assembly including an in-molded periphery seal |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1998030377A1 true WO1998030377A1 (en) | 1998-07-16 |
Family
ID=26670904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/000660 WO1998030377A1 (en) | 1997-01-10 | 1998-01-09 | Encapsulated window assembly including an in-molded periphery seal |
Country Status (7)
Country | Link |
---|---|
US (1) | US5997793A (en) |
EP (1) | EP1015221A4 (en) |
JP (3) | JP4646083B2 (en) |
AU (1) | AU5916198A (en) |
BR (1) | BR9807977A (en) |
CA (1) | CA2276746A1 (en) |
WO (1) | WO1998030377A1 (en) |
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US6449916B1 (en) | 2000-04-20 | 2002-09-17 | George E. Waters | Multi-glazed panel and method of fabrication |
US6474970B1 (en) | 1999-05-24 | 2002-11-05 | Societá Italiana Vetro-SIV-S.p.A. | Mould for moulding a glazing profile on a sheet of glazing material |
EP2923812A1 (en) * | 2014-03-25 | 2015-09-30 | Johan Ria Hugo Van Dyck | Method and mould for producing a panel assembly |
GB2576727B (en) * | 2018-08-29 | 2022-04-27 | Jaguar Land Rover Ltd | Glazing Assembly and Forming Method |
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DE19736267C1 (en) * | 1997-08-21 | 1998-12-03 | Freudenberg Carl Fa | Pleated nonwoven filter inserts production with both frame and seal captive |
US6337120B1 (en) * | 1998-06-26 | 2002-01-08 | Nok Corporation | Gasket for layer-built fuel cells and method for making the same |
US6174482B1 (en) * | 1998-10-26 | 2001-01-16 | Gemtron Corporation | Method of manufacturing an interlocked, “flush-to-front,” injection molded border and glass sheet |
US6228290B1 (en) * | 1999-07-23 | 2001-05-08 | Gemtron Corporation | Method of manufacturing an encapsulated, dual lens, sealed instrument cover |
US6572355B1 (en) | 2000-10-03 | 2003-06-03 | Libbey-Owens-Ford Co. | Window sash construction and method and apparatus for manufacture thereof |
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US6773652B2 (en) * | 2002-10-02 | 2004-08-10 | Elster Electricity, Llc | Process for the manufacture of a cover system for an electrical-energy meter |
US7707778B2 (en) | 2003-03-27 | 2010-05-04 | Alpa Lumber Inc. | Frame assembly for windows or doors with removable sash |
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- 1998-01-05 US US09/002,805 patent/US5997793A/en not_active Expired - Lifetime
- 1998-01-09 AU AU59161/98A patent/AU5916198A/en not_active Abandoned
- 1998-01-09 EP EP98902525A patent/EP1015221A4/en not_active Withdrawn
- 1998-01-09 JP JP53125498A patent/JP4646083B2/en not_active Expired - Fee Related
- 1998-01-09 CA CA002276746A patent/CA2276746A1/en not_active Abandoned
- 1998-01-09 BR BR9807977-8A patent/BR9807977A/en not_active Application Discontinuation
- 1998-01-09 WO PCT/US1998/000660 patent/WO1998030377A1/en not_active Application Discontinuation
-
2010
- 2010-06-30 JP JP2010149023A patent/JP4932019B2/en not_active Expired - Fee Related
- 2010-10-22 JP JP2010237402A patent/JP5255037B2/en not_active Expired - Lifetime
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6474970B1 (en) | 1999-05-24 | 2002-11-05 | Societá Italiana Vetro-SIV-S.p.A. | Mould for moulding a glazing profile on a sheet of glazing material |
US6890468B2 (en) | 1999-05-24 | 2005-05-10 | Societa Italiana Vetro-Siv-S.P.A. | Method for molding a glazing profile on a sheet of glazing material |
US6449916B1 (en) | 2000-04-20 | 2002-09-17 | George E. Waters | Multi-glazed panel and method of fabrication |
EP2923812A1 (en) * | 2014-03-25 | 2015-09-30 | Johan Ria Hugo Van Dyck | Method and mould for producing a panel assembly |
WO2015144624A1 (en) * | 2014-03-25 | 2015-10-01 | Johan Ria Hugo Van Dyck | Method and mould for producing a panel assembly |
GB2576727B (en) * | 2018-08-29 | 2022-04-27 | Jaguar Land Rover Ltd | Glazing Assembly and Forming Method |
Also Published As
Publication number | Publication date |
---|---|
JP2010269598A (en) | 2010-12-02 |
EP1015221A4 (en) | 2002-08-07 |
JP2001508712A (en) | 2001-07-03 |
JP4646083B2 (en) | 2011-03-09 |
JP4932019B2 (en) | 2012-05-16 |
EP1015221A1 (en) | 2000-07-05 |
JP2011057217A (en) | 2011-03-24 |
AU5916198A (en) | 1998-08-03 |
US5997793A (en) | 1999-12-07 |
CA2276746A1 (en) | 1998-07-16 |
BR9807977A (en) | 2000-03-28 |
JP5255037B2 (en) | 2013-08-07 |
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