MXPA99009848A - Method for the manufacture of a glass sheet and a molding produced by molding by injection, of type leveled to the front and of trab - Google Patents

Method for the manufacture of a glass sheet and a molding produced by molding by injection, of type leveled to the front and of trab

Info

Publication number
MXPA99009848A
MXPA99009848A MXPA/A/1999/009848A MX9909848A MXPA99009848A MX PA99009848 A MXPA99009848 A MX PA99009848A MX 9909848 A MX9909848 A MX 9909848A MX PA99009848 A MXPA99009848 A MX PA99009848A
Authority
MX
Mexico
Prior art keywords
glass sheet
peripheral
article
cavity
molding
Prior art date
Application number
MXPA/A/1999/009848A
Other languages
Spanish (es)
Inventor
Reames Gary
Herrmann Bob
Daley Howard
Original Assignee
Gemtron Corporation
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 Gemtron Corporation filed Critical Gemtron Corporation
Publication of MXPA99009848A publication Critical patent/MXPA99009848A/en

Links

Abstract

The present invention relates to a method for forming a unitary article that includes a molding along a periphery of a glass sheet, characterized in that it comprises the steps of: (a) providing a glass sheet having first and second surfaces opposite ones melting together along a peripheral surface including an angled surface that counteracts with the first surface of the glass sheet at an included angle substantially greater than 90 ° C; (b) placing the glass sheet in a mold having portions opposing cavities that collecti define a cavity, which includes a portion of peripheral cavity defined in part by a surface defining a cavity that lies in the plane of the first surface of the glass sheet when the mold is closed; mold so that the surface defining the cavity and the angled surface of the glass sheet form a complementary angle to the included angle and that with the first glass sheet surface abutting the surface defining a cavity inside the angled surface, and the glass sheet being held between the surface defining a cavity and an opposing surface, and (d) injecting synthetic plastic material and hot towards the peripheral cavity portion to completely encapsulate the periphery of the glass sheet with a synthetic plastic molding having a first outer surface coplanar with the first glass sheet surface, whereby these two last surfaces are led and the periphery of the glass sheet is in a locked and undermined relationship with the moldu

Description

METHOD FOR THE MANUFACTURE OF A GLASS SHEET AND A MOLDING PRODUCED BY MOLDING BY INJECTION, TYPE LEVELED TO THE FRONT AND TRABADO BACKGROUND OF THE INVENTION To date it has been common to provide a glass sheet with a molding for its subsequent use as a shelf, panel for kitchen cover or the like. If the molding is a polymeric / copolymer injection molding encapsulation, it is common to use a bonding agent to fix the polymeric / copolymer molding or injection molding frame to the peripheral edge of the glass sheet. In U.S. Patent No. 5,785,047 issued to the assignee of this invention on July 28, 1998, a cooktop, a stove burner cover or the like is disclosed, which includes an injection molded encapsulation surrounding to a peripheral edge of a kitchen cover panel, wherein the peripheral surfaces of the latter have applied thereto a primary coating, for example Chemlok AP-134 which is a single coat primer and / or Chemlok EP 6962- 50A / P, primer, each manufactured by Lord Corporation of 2000 West Grand View Blvd., PO Box 10038, Erie, PA 16514-10038. The primer increases adhesion between the peripheral edge of the glass P1645 / 99MX Ceran® or an equivalent panel and the encapsulation, frame or molding that is preferably Santoprene® manufactured by Advanced Elastomer Systems L.P. In order to facilitate cleaning and maintenance, the upper surfaces of the kitchen countertops, the injection molded encapsulation or the moldings and an associated edge piece are essentially flush. However, the use of the primer, an adhesive or an equivalent bonding agent to bond an extruded frame to the glass or Ceran® panel poses several problems, both during manufacture and during use. Obviously, the application of a primer or a bonding agent requires higher costs of the materials used and additional costs involved in carefully and selectively applying the primer to the periphery of the glass panel or Ceran®. Delamination may occur during use, particularly to the breaking of the primer and the consequent detachment of the frame and the glass panel. Instead of injection molding for a frame on the periphery of a glass sheet, it is also common to use a multi-piece plastic frame of the type set forth in U.S. Patent No. 4,934,541. The plastic frame of multiple pieces requires the separate manufacture of two frame members that are then assembled P1S45 / 99MX separately and are joined with a glass panel by ultrasonic welding. This process avoids delamination when the primer breaks down and / or loses its binding efficiency, particularly during long-term use under adverse conditions. However, the costs of manufacturing multiple frame members and joining them through ultrasonic welding represent a prohibitive cost. Each of these approaches presents more problems than solutions. The injection molding operation presents an aesthetically pleasing product, but still the cost of the primer and its application is undesirably prohibitive, in particular when delamination occurs either due to inefficient application of the primer during manufacture and / or to the existence of spaces and gaps that could be attacked during use, resulting in delamination. Ultrasonic welding avoids delamination but the manufacture of many steps has a prohibitive cost. Ideally, the best of both processes would be a glass sheet and a molding made by injection molding, of the "leveled to the front" type during locking, which lacks a primer or bonding material and which is relatively resistant, resists abuses to a considerable extent without presenting detertion, is P1S45 / 99MX is aesthetically pleasing and can be easily cleaned at the same time it is manufactured with minimal costs.
SUMMARY OF THE INVENTION According to the above, a primary objective of this invention is to provide a novel method for the fabrication of an encapsulation, molding or frame along a peripheral edge portion of an article, particularly a glass panel and, simultaneously, create a lock between them, where a primer or a bonding agent is not used, and at the same time create an aesthetic appearance "leveled at the front". The method of the present invention is carried out by providing a glass sheet having first and second opposing surfaces that fuse with one another along a peripheral surface ground at an angle which, in contrast to the first surface of the glass sheet, forms a angle included substantially higher than normal. The glass sheet is placed in a mold having opposite cavity portions that collectively define a cavity that includes a peripheral edge cavity portion defined, in part, by a surface defining a cavity and lying in the plane of the first surface of the glass sheet, when the mold is closed. The mold is closed so that the surface that defines the P1645 / 99MX cavity and the angled ground surface of the glass sheet oppose a complementary angle to the included angle and, with the first surface of the glass sheet, it meets the surface defining the cavity, inside the ground surface at an angle of the glass sheet The synthetic polymeric / copolymer plastic material is injected to the peripheral portion of the cavity to completely encapsulate the periphery of the glass sheet with a molding, frame or encapsulation having a first outer surface coplanar with the first surface of the glass sheet, whereby these latter two surfaces are "leveled to the front" and the periphery of the glass sheet is in a locked and undercut relationship with the injection molded molding. Therefore the method described is used to manufacture various types of products, but the present invention is directed in particular to the use of framed glass sheets, such as a computer screen or a computer anti-reflective filter, using the method It also applies to the formation of kitchen covers, refrigerator shelves, refrigerator doors and the like. With the above objects and others that will follow, the nature of the invention can be understood more clearly P1S45 / 99MX with reference to the following detailed description, the appended claims and various views illustrated in the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a top perspective view of a novel article manufactured according to the invention and illustrating a glass sheet having a peripheral edge portion fully encapsulated by a molding or frame made of polymeric plastic material. copolymer, injection molded in si tu. Figure 2 is a fragmentary, elongated, vertical cross-sectional view taken generally along line 2-2 of Figure 1 and illustrating an undercut locking link between a peripheral edge of the glass sheet and the frame molded by injection, as well as the exterior "leveled to the front" of it. Figure 3 is a vertical cross-sectional view taken through an injection mold of the present invention and illustrating upper and lower mold bodies in their open position, where each defines a cavity portion, which in the closed position of the mold bodies defines a mold cavity. Figure 4 is a vertical cross-sectional view of the mold of Figure 3 and illustrates a P1645 / 99MX glass sheet placed with a peripheral edge thereof in an overlying relationship to a portion of peripheral cavity with an upward opening in the lower mold body. Figure 5 is a vertical cross-sectional view of the mold of Figures 3 and 4 and illustrating the mold bodies in their closed position, wherein the first surface or upper surface of the glass sheet lies on a coplanar plane to the surface of the upper mold body defining a portion of the cavity thereof. Figure 6 is a vertical cross-sectional view of the mold and illustrating a polymeric / copolymer synthetic plastic material injected into the mold cavity and encapsulating a periphery of the glass sheet to form a lock undercut with it; an exterior surface "leveled in front" is formed. Figure 7 is a vertical cross-sectional view of the mold of Figures 3 to 6 and illustrating the mold bodies moved to an open position incident to the removal therefrom of the glass sheet with molding, framed or encapsulated. Figure 8 is a perspective view of another article manufactured in accordance with this invention and illustrating a refrigerator drawer that includes P1645 / 99MX a sheet of glass in a front wall of the same, completely encapsulated by a molding or frame created during injection molding in si tu del cajón. Figure 9 is a vertical, slightly enlarged, cross-sectional view taken generally along line 9-9 of Figure 8 and illustrating the locking and undercut connection between a periphery of the glass sheet and the molding. or frame of the front wall of the drawer. Figure 10 is a cross-sectional view, vertical, through a mold where two mold bodies are illustrated in the closed position thereof, defining a cavity where the box is injection molded and simultaneously the glass sheet is locked in a "leveled to the front" relationship of the molding on a front wall of the drawer. Figure 11 is a vertical cross-sectional view of the mold of Figure 10 and illustrates upper and lower mold bodies thereof, moved to an open position to facilitate removal of the drawer. Figure 12 is a fragmentary and enlarged view illustrating the details of the glass-molding latch of Figures 8 to 10 of the drawings. Figure 13 is a fragmentary and elongated cross-sectional view similar to the P1645 / 99MX Figure 2, illustrating another locking and undercut connection between a peripheral edge of a glass sheet and an injection molded frame or encapsulation, including the "leveled front" exterior thereof. Figure 14 is a fragmentary, elongated, vertical cross-sectional view similar to Figure 2, illustrating another locking and undercut connection between a rounded peripheral edge of a glass sheet and an injection molded frame or encapsulation, including the exterior "leveled in front" of it. Figure 15 is a fragmentary, enlarged, vertical cross-sectional view similar to that of Figure 2 and illustrating another locking and undercut connection between a peripheral edge of a glass sheet having a rounded nose and a frame or encapsulation molded by injection, including the exterior "leveled to the front" of the same. Fig. 16 is a fragmentary, enlarged, vertical cross-sectional view similar to that of Fig. 2, illustrating another locking and undercut connection between a peripheral edge of a glass sheet having an outer surface portion, continuously curved and an encapsulation or injection molded frame, which includes the exterior "leveled to the front" of the same.
P1645 / 99MX DESCRIPTION OF THE PREFERRED MODALITY A manufactured article constructed according to the method of the present invention is illustrated in Figures 1 and 2 of the drawings and is generally designated with the reference number 10. The article of manufacture 10 in Special is designed to be used as a computer screen or as a computer anti-reflective filter and includes a first component or glass sheet 11 and a second component in the form of a frame, encapsulation, molding or flange portion 12, which is formed by molding by injection from polymeric / copolymer synthetic plastic material, for example Santoprene®, PVC, crayon, polypropylene or an equivalent material. The glass sheet or first component 11 may have specific characteristics associated with it, which are created during manufacture depending mainly on the end-use applications. For example, the glass sheet 11 could have antireflective characteristics before and, preferably, the glass is tempered in a conventional manner. The glass sheet 11 includes a first surface 13 which during use is intended to be the front or outer surface, and a second surface or rear surface 14, generally parallel and opposite. As best illustrated in Figure 2, the surfaces 13 and 14 are P1S4S / 99MX fuse with one another along a peripheral surface 15 which includes an angled surface 16 which with the first surface 13 of the glass sheet counterpose an included angle substantially greater than the normal, that is, 135 °. The glass sheet 11 is normally cut from a larger sheet in a conventional manner and when it is already cut, a terminal peripheral surface (not shown) is essentially normal or perpendicular to the surfaces 13, 14. However, after this last manufacturing step, the angled surface 16 is formed by grinding the first surface 13 in a conventional manner. The angled and ground surface 16 fuses with the second surface 14 on a terminal and peripheral edge surface 17 that varies between 0.005 and 0.02 inches. The second component, a molding, frame or encapsulation 12, encapsulates substantially completely, continuously and peripherally to the peripheral surface 15, the angled surface 16 thereof, the peripheral end edge surface 17 and the peripheral surface area 18. of the second surface 14 of the glass sheet 11, which is essentially below the angled ground surface 16. The encapsulation or frame 12 includes a first surface 23 opposite and parallel to a P1645 / 99MX second surface 24 melting together on a peripheral surface 25, which is essentially normal or perpendicular to the surfaces 23, 24. It should be noted in particular that the surfaces 13, 23 of the respective glass sheet 11 and the frame, molding or encapsulation 12 are in a common plane that corresponds to the external or external side of the end-use application, as in the case of the computer screen. Therefore, in this position the surfaces 13, 23 define an aesthetic appearance "leveled to the front" towards the outside of the computer screen 10. The frame or encapsulation 12 also includes an internal peripheral surface 26 that is essentially parallel to the surface 25 and the surfaces 27, 28 and 29 reflecting the respective surfaces 18, 17 and 15 of the glass sheet 11. The surfaces 27 to 29 essentially define a locking slot 19 with an inward opening, which is locked with an area of peripheral surface of the glass sheet 11 through an intimate coupling between the respective surfaces 18, 27; 17, 28 and 15, 29. Therefore, the computer screen 10 not only represents an aesthetic appearance "leveled to the front" when in use, but the lock achieved between the glass sheet 11 and the frame 12 is achieved in the absence of a primer, bonding material, intricate undercutting, multi-fabrication P1645 / 99MX parts and unification separated by sonic welding or the like. The article 10 of Figures 1 and 2 is formed by injection molding the encapsulation or frame 12 along the periphery of the glass sheet 11 in a mold 30 of Figures 3 to 7. The mold 30 includes a body of upper mold 31 and a lower mold body 32 which collectively define a mold cavity 33, when the mold bodies 31, 32 are closed in a conventional manner. The ports, gutters, injection sprues, etc. they are of the conventional type and are not shown in Figures 3 to 7. The cavity 33 of the mold 30 includes respective cavity portions 34, 35 defined by the respective mold bodies 31, 32. The cavity portion 34 of the mold cavity 35 is of a generally rectangular configuration open upwards. A first surface 36 defining a cavity portion that is essentially parallel to a second surface 37 or dividing surface, defining a dividing plane with a similar dividing surface 40 of the mold body 32. A peripheral surface 38 fuses the surfaces 36, 37 and correspond size and shape to the peripheral surface 25 of the encapsulation 12 (Figure 2). The cavity portion 34 is therefore an upwardly open, rectangular cavity and P1645 / 99MX shallow. The cavity portion 35 of the mold body 32 is defined by a first surface 46 defining a cavity portion and opposing surfaces 47, 48 that are essentially parallel to each other. As seen from above, the cavity portion 35 has a configuration similar to a polygonal channel, with an opening essentially upwards, with the surfaces 47, 48 of the mold body 32 corresponding to the surfaces 26, 17 eventually formed, respectively, of the molding, frame or encapsulation 12. The glass sheet 11 (Figure 4) is inserted between the mold bodies 31, 32 when the latter are opened in a conventional manner with the second surface 14 of the glass sheet 11 resting on the upper part of the dividing surface 40 of the mold body 32. The peripheral edge 17 of the glass sheet 14 lies between the surfaces 47, 48 around the entire cavity portion 35 and the peripheral edge 17 is spaced inwardly. of surfaces 38, 48 (Figure 4). The mold bodies 31, 32 are closed in the manner illustrated in Figure 5. In the closed position, the glass sheet 11 is clamped between two surfaces 36, 40, as will be evident in Figure 5. The techniques for closing mold are P1645 / 99MX conventional in this field and suffice to say that the mold bodies 31, 32 are put in the closed position of Figure 5 so that a portion 50 of peripheral cavity is defined by the surfaces 47, 46, 48, 38, a portion of peripherally outward (unnumbered) surface of the surface 36, and the surfaces 16, 17 and a portion (not numbered) of the surface 14 of the glass sheet 11 out of the surface 47. A comparison between the Figures 2 and 5 indicate the substantial identity between the cross-sectional configuration of the peripheral cavity portion 50 and the cross-sectional configuration of the encapsulation, frame or molding 12 (Figure 2) injection molded therein. As best illustrated in Figure 6, the synthetic polymeric / copolymer plastic material P is injected into the peripheral cavity portion 50 resulting in the formation of the encapsulation, frame or molding 12 that forms the "leveled to the front" and locked configuration the computer screen 10 so far described, and the eventual removal of the computer screen 10 is effected by the opening of the mold bodies 31, 32 in the manner illustrated in Figure 7. Subsequently, the computer screen 10 can be lifted upwards, removed from the mold 30 and the process repeated.
P1645 / 99MX Through the method of forming a unit article 10 in the manner just described it is preferably associated with a computer screen or anti-reflective filter for computer or the like, other products are formed equally in accordance with The invention, for example, an article of manufacture 60 of Figures 8 and 9, which is a refrigerator drawer "for vegetables" defined by an injection molded body 61 having an interior chamber 62 and a front wall 63, including a molding or molding portion 64 of a generally rectangular or polygonal configuration. A handle 65 and generally parallel and opposite sideways slides or edges 66, 67 can be integrally molded during the injection molding of the article or drawer 60 to allow the drawer to be mounted in sliding relation with complementary sliding rails of an associated refrigerator (not shown) . A sheet of glass 70 is placed in a "leveled to the front", locked, and injection molded relationship with the front wall 63, especially in association with the molding portion or frame portion 64 thereof. The glass sheet 70 is of a configuration identical to the glass sheet 11 of Figure 2 and, therefore has reference numerals with a "prime" sign to illustrate the identical components. As best illustrated in Figures 10 and P1645 / 99MX 11, a mold 20 is defined by a male mold body 81 and a female mold body 82 that collectively define a mold cavity 83 when the mold bodies 81, 82 are closed along dividing line surfaces 87, 88, respectively. The dividing line surface 88 is fused with a relatively flat surface 90 against which the glass sheet 70 is placed and retained, by a conventional vacuum, for example, before closure of the mold bodies 80, 82. When the bodies 81, 82 are closed, the cavity 83 thereof is a mirror image of the cross section of the drawer illustrated in Figure 10 and a suitable polymeric / copolymer material is conventionally injected into the interior of the cavity 83 to form not only all the drawer 60 but simultaneously to the same, achieve the interlocking between the peripheral edge portion (without number) of the glass sheet 70 and the portion of moldings 64 of the front wall 63. the mold bodies 81, 82 are removed one of another relatively vertically, in the manner illustrated by the arrows with tips directed in the opposite direction which are associated with the drawing, resulting in the complete opening of the bodies of mold 81, 82 of the mold 80 and the subsequent removal of the drawer 60 therefrom. As illustrated below in Figures 9 and 12, the relationship P1645 / 99MX between the peripheral edge of the glass sheet 70 and the encapsulated molding portion or frame portion 64 of the front wall 63 is identical to that of the glass sheet 11 and the molding or frame 12 of article 10 of the Figures 1 and 2, namely, the two components are in a "leveled to the front" relationship, locked and injection molded, one with the other. With a further agreement to this invention, another article of manufacture is illustrated in Figure 13 of the drawings and is generally designated with the reference numeral 110. The article of manufacture 110 is especially designed to be used as a computer screen or as a computer antireflection filter, as is the case with the article of manufacture 10 of Figures 1 and 2. The main differences between the two articles 10, 110 is that in article 10 the peripheral surface 15 includes the angled surface 16 of the same (Figure 2), while in article 110, a peripheral edge 111 of a glass sheet 112 is staggered by two peripheral surfaces 113, 114 that are perpendicular to each other and are also perpendicular to the upper surface 115 and a surface outer peripheral 116 that merges with a lower surface 117. The surface 115, 117 of the glass 112 are parallel to each other, of course, the surface 115 is level with a P164S / 99MX surface 120 of a molding, frame or encapsulation 125 having a slot 126 between the peripheral tabs or legs 127, 128. This last relation serves to lock the slot 126 of the encapsulation 125 and the peripheral edge 111 of the sheet glass 112. Another article of manufacture illustrated in Figure 14 of the drawings is designated generally with reference numeral 210. The article of manufacture 210 includes a peripheral edge 211 which is defined by a peripheral surface 212, convex outwards and totally curve, which is fused with an upper surface 213 and with a lower surface 214. The surfaces 213, 214 are parallel to each other and the surface 213 is flush with a surface 215 of a molding, frame or encapsulation 225. The encapsulation 225 includes a slot 226 located between the peripheral legs or flanges 227, 228. This last relationship locks the peripheral edge 211 of the glass 220 with the slot 226 of the 225. Another article of manufacture illustrated in Figure 15 of the drawings is generally indicated with reference number 310. The article of manufacture 310 is essentially identical to the article of manufacture 10 of Figure 2 and has identical numbers to those that appear in Figure 2, except P1645 / 99MX that carry a "premium" sign to identify identical components and structures. The main difference between articles 10, 310 resides in that the glass sheet 11 'of article 310 has a peripheral terminal edge surface or nose 17' which is rounded, in comparison with the flat peripheral surface 17 of article 10 (Figure 2). ). In addition, an angled surface 16 'of the article 310 defines a substantially smaller included angle with the surface 14', with respect to the angle included by the surfaces 14, 16 of the article of manufacture 10. However, the surfaces 13 ', 23' of the stud 11 'and the encapsulation 12', respectively, are flush with each other. Another article of manufacture 410 of the Figure 16 is essentially identical to the article of manufacture 310 except for a surface 16"thereof which is curved along an arc of constant radius between the surfaces 13" and 14", the" biprima "signs which are used identify identical surfaces to those of the article of manufacture 310 of Figure 14. The surface 13"is also flush with the surface 23" of an encapsulation or molding 12"of the article 410. Either of the joints illustrated in Figures 13 to 16 of the drawings can, of course, be used in a drawer, for example the drawer 60 of P1645 / 99MX Figures 8 and 9, or in a comparable structure. Although the preferred embodiment of the invention has been specifically illustrated and described, it should be understood that minor variations may be made to the apparatus without departing from the spirit and scope of the invention, as defined by the appended claims.
P1S45 / 99 X

Claims (36)

  1. NOVELTY OF THE INVENTION Having described the present invention, it is considered as a novelty and, therefore, the content of the following CLAIMS is claimed as property; A method for forming a unitary article that includes a molding along a periphery of a glass sheet, comprising the steps of: (a) providing a glass sheet having first and second opposing surfaces that are fused between yes along a peripheral surface including an angled surface that counteracts with the first surface of the glass sheet at an included angle substantially greater than the perpendicular; (b) placing the glass sheet in a mold having opposite cavity portions that collectively define a cavity, which includes a peripheral edge cavity portion defined in part by a cavity defining surface and lying in the plane of the cavity. first surface of the glass sheet when the mold is closed; (c) closing the mold so that the surface defining the cavity and the angled surface of the glass sheet counteract an angle complementary to the included angle and that with the first glass sheet surface abuts the P1645 / 99MX surface defining a cavity inside the angled surface, and (d) injecting hot plastic synthetic material towards the peripheral cavity portion to completely encapsulate the periphery of the glass sheet with a synthetic plastic material molding that has a first outer surface coplanar with the first glass sheet surface, whereby these two last surfaces are leveled and the periphery of the glass sheet is in a locked and undercut relationship with the molding. The method according to claim 1, wherein the molding has a second outer surface not coplanar with and separated from the second surface of the glass sheet. The method according to claim 1, wherein the included angle is essentially 135 °. The method according to claim 1, including the step of grinding the peripheral surface to form an angled surface therein. The method according to claim 1, wherein the angled surface and the second surface of the glass sheet are fused to a peripheral terminal edge surface. The method according to claim 1, wherein the angled surface and the second glass sheet surface are fused to a peripheral terminal edge surface ranging between 0.005 and P1645 / 99MX O .02 inches. The method according to claim 1, wherein the unit article is a computer screen leveled in front. The method according to claim 1, wherein the unitary article is a wall of a drawer, leveled to the front. The method according to claim 1, wherein the mold includes at least two mold bodies having opposite contact surfaces in the closed position of the mold to define a dividing line plane in the mold, and the dividing line plane it is coplanar to the first surface of the glass sheet and to the surface defining the cavity. The method according to claim 9, wherein the molding has a second outer surface not coplanar with and separated from the second glass sheet surface. The method according to claim 9, wherein the included angle is essentially 135 °. The method according to claim 9, which includes the step of grinding the peripheral surface to form the angled surface therein. The method according to claim 9, wherein the angled surface and the second surface of the glass sheet are fused to a peripheral terminal edge surface. P1S45 / 99MX 14. The method according to claim 9, wherein the angled surface and the second surface of the glass sheet are fused to a peripheral terminal edge surface ranging between 0.005 and 0.02 inches. 15. The method according to claim 9, where the unit article is a computer screen leveled in front. 16. The method according to claim 9, wherein the unitary article is a wall of a drawer, leveled at the front. 17. A manufacturing article comprising at least two components, the first of the components being a glass sheet having first and second opposing surfaces fusing together along a peripheral surface, this surface includes an angled surface which together with the first surface of the sheet of glass counteracts an included angle substantially greater than the perpendicular; the second component includes a portion of molding injection molded from polymeric / copolymer synthetic plastic material, in an encapsulating, peripheral and continuous relationship, essentially complete, with respect to the peripheral surface, to the angled surface thereof and to a peripheral surface area of the second surface of the glass sheet, but excluding the first surface P164S / 99MX of the glass sheet; and a plane of the first surface of the glass sheet which is coplanar to an outer surface of the molding portion, thus creating a substantially level exterior and a peripheral junction locked between those at least two components. 18. The article of manufacture according to claim 17, wherein the angled surface is a ground surface. 19. The article of manufacture according to claim 17, wherein the two components define a computer screen leveled face to face. The article of manufacture according to claim 17, wherein the second component defines a receptacle. 21. The article of manufacture according to claim 17, wherein the second component defines a drawer. The article of manufacture according to claim 17, wherein the second component defines a drawer and the glass sheet defines, at least in part, a front wall of the drawer through which an interior of the drawer and its contents, can be observed The article of manufacture according to claim 17, wherein the molding portion includes a second outer surface in relation to P1645 / 99MX not coplanar and separated from the second surface of the glass sheet. The article of manufacture according to claim 17, wherein the included angle is essentially 135 °. The article of manufacture according to claim 17, wherein the angled surface and the second surface of the glass sheet melt into a peripheral terminal edge surface ranging between 0.005 and 0.02 inches. 26. The article of manufacture according to claim 17, wherein the molding portion includes a second outer surface in a non-coplanar and parallel relation spaced apart from the second surface of the glass sheet. 27. The article of manufacture according to claim 19, wherein the angled surface is a ground surface. 28. The article of manufacture according to claim 20, wherein the angled surface is a ground surface. 29. The article of manufacture according to claim 21, wherein the angled surface is a ground surface. 30. The article of manufacture according to claim 22, wherein the angled surface is a ground surface. 31. The article of manufacture according to P1645 / 99MX claim 23, wherein the angled surface is a ground surface. 32. A manufacturing article comprising at least two components, the first of the components being a glass sheet having first and second opposing surfaces melting together along a peripheral surface, this surface includes a curved surface convexly outward; the second component includes a portion of molding injection molded from synthetic, polymeric / copolymer plastic material, in an encapsulating, peripheral, continuous and substantially complete relationship with respect to the peripheral surface to the convexly curved surface facing away from the same and a peripheral surface area of the second surface of the glass sheet, but excluding the first surface of the glass sheet; and a plane of the first surface of the glass sheet is coplanar to an outer surface of the molding portion, thereby creating an essentially level exterior and a peripheral junction locked between the at least two components. 33. The article of manufacture according to claim 32, wherein the curved surface convex outwardly encompasses an arc of essentially 180 ° between the first and second surfaces of the glass sheet. P1645 / 99MX 34. The article of manufacture according to claim 32, wherein the curved surface convex outwardly encompasses an arc of essentially 90 ° between the first and second surfaces of the glass sheet. 35. A manufacturing article comprising at least two components, one of the components is a glass sheet having first and second opposing surfaces that are fused together along a stepped peripheral surface that includes two angled surfaces; the second component includes a portion of injection molded molding of a polymeric / copolymer synthetic plastic material in an encapsulating, peripheral, continuous, essentially complete relation to the peripheral surface and to the two angled surfaces thereof and an area of peripheral surface of the second surface of the glass sheet, but excluding the first surface of the glass sheet; and a plane of the first surface of the glass sheet is coplanar to an outer surface of the molding portion, thereby creating an essentially level exterior and a peripheral bond locked between the at least two components. 36. The article of manufacture according to claim 35, wherein the two angled surfaces compensate for an angle of essentially 90 °. P1645 / 99MX SUMMARY OF THE INVENTION The method of the present invention is carried out by providing a glass sheet having first and second opposing surfaces that fuse with each other along an angular, ground, peripheral surface, which together with the first surface of the glass sheet compensates for an included angle essentially greater than the perpendicular. The glass sheet is placed in a mold having opposite cavity portions that collectively define a cavity that includes a peripheral edge cavity portion defined in a part by a cavity defining surface, which lies in the plane of the first surface of the glass sheet when the mold is closed. Subsequently the mold is closed so that the surface defining the cavity and the round angled surface of the glass sheet are compensated with an angle complementary to the included angle and the first surface of the glass sheet meets the surface defining the cavity inside the frosted angled surface of the glass sheet. The synthetic polymeric / copolymer plastic material is injected into the peripheral cavity portion to completely encapsulate the periphery of the glass sheet with a molding, or a frame or encapsulation, having a first outer surface coplanar with the P1645 / 99MX first surface of the glass sheet, by which these last two surfaces are "leveled to the front" and the periphery of the glass sheet is in a locked and undercut relationship with the injection molded molding. P1645 / 99MX
MXPA/A/1999/009848A 1998-10-26 1999-10-26 Method for the manufacture of a glass sheet and a molding produced by molding by injection, of type leveled to the front and of trab MXPA99009848A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09178537 1998-10-26

Publications (1)

Publication Number Publication Date
MXPA99009848A true MXPA99009848A (en) 2000-06-01

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