Edge covering assembly and method of processing the same

Abstract

This invention relates to an edge-binding assembly and its processing method, comprising glass, a glossy trim, and an edge-binding assembly. The glass and glossy trim are integrally injection-molded with the edge-binding assembly. The edge-binding assembly is arranged along the outer edge of the glass and has processing holes within it. The edge-binding assembly has air inlets and overflow outlets, both communicating with the processing holes, arranged sequentially and at intervals along the outer edge of the glass. During processing, gas is injected into the edge-binding assembly through the air inlets, forcing a portion of the edge-binding material out through the overflow outlets, thereby forming the processing holes within the edge-binding assembly. The sequentially and at intervals of the air inlets and overflow outlets along the outer edge of the glass ensure that the processing holes are formed along the edge-binding contour; in other words, the processing holes are at least partially distributed between the air inlets and overflow outlets along the edge-binding contour. The presence of the processing holes ensures a high degree of thickness uniformity across the various parts of the edge-binding assembly, thereby preventing the glossy trim from being stretched during thermal expansion and contraction, and thus avoiding distortion of the glossy trim.

Description

Technical Field

[0001] This invention relates to the field of automotive glass edging technology, and in particular to edging assemblies and their processing methods. Background Technology

[0002] Automotive glass bezel assemblies can be manufactured using a one-piece injection molding process. The glass, trim strip, and other accessories are placed in a mold, and then bezel material is injected into the mold, ultimately connecting the glass, trim strip, and other accessories together through the bezel. To improve the tightness of the connection between the trim strip and the bezel, an adhesive is applied to the surface of the trim strip that will come into contact with the bezel material before injection. After the bezel material solidifies and forms the bezel, the varying thicknesses of different parts can cause the trim strip connected to the bezel to be stretched and deformed during thermal expansion and contraction, resulting in distortion of the trim strip. Summary of the Invention

[0003] To address the above problems, this invention proposes an edge-binding assembly and its processing method. The processing holes are provided in the edge-binding to ensure high thickness consistency of each part of the edge-binding, thereby preventing the bright trim from being stretched during thermal expansion and contraction and thus avoiding distortion of the bright trim.

[0004] An edge-sealing assembly, comprising:

[0005] Glass;

[0006] Bright trim;

[0007] The edging is integrally injection molded to connect the glass and the bright trim strip. The edging is arranged along the outer edge of the glass and has processing holes inside. The edging is provided with air inlet and overflow openings that are connected to the processing holes. The air inlet and overflow openings are arranged sequentially at intervals along the outer edge of the glass.

[0008] In one embodiment, the bright trim strip is connected to the outer side of the edging, the side of the edging opposite to the outer side is the inner side, and the air inlet and / or the overflow outlet penetrates the inner side of the edging and communicates with the space outside the edging.

[0009] In one embodiment, the air intake opening and / or the overflow opening are located on the edging opposite the bright trim strip.

[0010] In one embodiment, the thickness of the portion of the edging where the air intake opening is located is greater than or equal to the thickness of other portions of the edging.

[0011] In one embodiment, the processing hole is an elongated hole distributed along the outer edge of the glass, with a portion of the elongated hole located between the air inlet and the overflow opening, a portion of the elongated hole located on the side of the overflow opening away from the air inlet, and a portion of the elongated hole located on the side of the air inlet away from the overflow opening.

[0012] In one embodiment, the minimum distance between the hole wall of the machining hole and the outer surface of the edge is 2mm to 4mm.

[0013] In one embodiment, the minimum distance between the wall of the machined hole and the bright trim strip is 2mm to 4mm.

[0014] In one embodiment, the edging is provided with a plurality of overflow openings, which are arranged sequentially at intervals along the outer edge of the glass.

[0015] In one embodiment, the edging is provided with a plurality of air intake openings, which are arranged sequentially at intervals along the outer edge of the glass.

[0016] A method for processing an edge-wrapping assembly includes the following steps:

[0017] The cavity is formed by using glass, bright decorative strips, and molds together;

[0018] Both the air-blowing needle and the material-discharging needle are inserted into the cavity, and the air-blowing needle and the material-discharging needle are arranged sequentially at intervals along the cavity.

[0019] Inject edge-binding material into the cavity;

[0020] Before the edge binding material solidifies, gas is injected into the edge binding material using the air blowing needle to squeeze the edge binding material in the cavity, so that part of the edge binding material is discharged out of the cavity from the discharge needle.

[0021] In one embodiment, injecting the edge-binding material into the cavity specifically includes the following steps:

[0022] Fill the cavity with the edge binding material.

[0023] In one embodiment, the gas injected into the cavity is an inert gas.

[0024] The above solution relates to an edge-binding assembly and its processing method. Processing holes are provided on the edge-binding to ensure high thickness consistency across different parts of the edge, thereby preventing the bright trim from being stretched during thermal expansion and contraction, and thus avoiding distortion of the bright trim. In specific processing, gas is injected into the edge-binding through the air inlet, forcing some of the edge-binding material out through the overflow outlet, thereby forming the processing holes in the edge-binding. The air inlet and the overflow outlet are arranged sequentially and at intervals along the outer edge of the glass, so that the processing holes are formed along the edge-binding trend; in other words, the processing holes are at least partially distributed between the air inlet and the overflow outlet along the edge-binding trend. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a front view of the edge-sealing assembly described in this embodiment;

[0028] Figure 2 for Figure 1 A sectional view of the edge-sealing assembly shown;

[0029] Figure 3 for Figure 1 Rear view of the edging assembly shown;

[0030] Figure 4 for Figure 3 Sectional view along the middle AA direction;

[0031] Figure 5 for Figure 3 Sectional view along the BB direction;

[0032] Figure 6 for Figure 3 A cross-sectional view along the CC direction;

[0033] Figure 7 for Figure 3 Sectional view along the DD direction;

[0034] Figure 8 for Figure 3 A sectional view along the EE direction;

[0035] Figure 9 This is a flowchart of the edge-wrapping assembly processing method described in this embodiment.

[0036] Explanation of reference numerals in the attached figures:

[0037] 10. Edge banding assembly; 11. Glass; 12. Bright trim strip; 13. Edge banding; 131. Machining hole; 132. Air inlet opening; 133. Overflow opening. Detailed Implementation

[0038] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0039] like Figures 1 to 3 As shown, in one embodiment, an edge-binding assembly 10 is provided, including glass 11, a bright trim strip 12, and an edge-binding 13. The glass 11 and the bright trim strip 12 are integrally injection molded to the edge-binding 13. During processing, the glass 11 and the bright trim strip 12 are placed in a mold to form a cavity together with the mold. Then, edge-binding material is injected into the cavity. After the edge-binding material solidifies, it forms the edge-binding 13, which is connected to the glass 11 and the bright trim strip 12 upon solidification.

[0040] like Figures 1 to 3 As shown, the edging 13 is arranged along the outer edge of the glass 11. Specifically, the edging 13 may be arranged around the entire outer edge of the glass 11, or the edging 13 may not cover the entire outer edge of the glass 11. The direction of the edging 13 is along the outer edge of the glass 11. The bright decorative strip 12 is arranged along the direction of the edging 13.

[0041] like Figures 1 to 3 As shown, in one embodiment, the edging assembly 10 is a triangular window for mounting on a vehicle body. The three edges of the glass 11 are all wrapped by the edging 13, which is a triangular frame. The bright trim strip 12 covers two of the edges of the edging 13.

[0042] like Figure 2As shown, the edging 13 has a processing hole 131. The edging 13 is provided with an air inlet 132 and an overflow opening 133, both of which communicate with the processing hole 131. The air inlet 132 and the overflow opening 133 are arranged sequentially at intervals along the outer edge of the glass 11. The air inlet 132 is used to inject gas to expel unsolidified edging material from the overflow opening 133 to form the processing hole 131.

[0043] During processing, before the edge trim material completely solidifies in the mold cavity, gas can be injected into the unsolidified edge trim material through the air inlet 132. This forces some of the edge trim material out through the overflow opening 133, ultimately forming the processing hole 131 in the edge trim 13. This ensures a more uniform thickness across the edge trim 13, preventing uneven shrinkage of the edge trim material during thermal expansion and contraction, which could lead to distortion of the bright trim strip 12. Generally, the thicker sections of the edge trim are designed to include the processing hole 131, thereby reducing the cross-sectional area of ​​the edge trim 13 and its thickness, thus preventing the aforementioned distortion of the bright trim strip 12.

[0044] When the edge trimming material is injected into the cavity, the part in contact with the cavity wall first solidifies to form a shell, while the edge trimming material in the middle has not completely solidified. At this time, gas is injected into the middle to squeeze out some of the unsolidified edge trimming material from the overflow opening 133, thereby forming the processing hole 131.

[0045] Specifically, during processing, the air-blowing needle and the discharge needle can be inserted into the mold cavity beforehand. This allows air to be injected into the unsolidified edge material in the center using the air-blowing needle, and the unsolidified portion of the edge material can be discharged through the discharge needle. After the processing hole 131 is formed, the air-blowing needle and the discharge needle can be pulled out, ultimately forming the air inlet 132 and the overflow opening 133.

[0046] The processing hole 131 is an elongated hole distributed along the outer edge of the glass 11. In other words, the elongated hole is distributed along the edge 13 and can be bent as the edge 13 bends.

[0047] The edging 13 is a triangular frame, and the elongated holes are arranged along the trend of the triangular frame.

[0048] like Figure 2 As shown, a portion of the elongated hole is located between the air inlet 132 and the overflow opening 133. A portion of the elongated hole is located on the side of the overflow opening 133 furthest from the air inlet 132.

[0049] And / or, a portion of the elongated hole is located on the side of the air inlet 132 away from the overflow opening 133.

[0050] When air is blown into the unsolidified edge material through the air inlet 132, the unsolidified edge material can flow in either direction, and the resulting processing holes 131 are not necessarily only distributed between the air inlet 132 and the overflow opening 133. After the edge material located between the air inlet 132 and the overflow opening 133 is squeezed out, if pressure continues to be applied, the edge material on the side of the overflow opening 133 away from the air inlet 132 will also be squeezed out from the overflow opening 133. During processing, the air pressure blown from the air inlet 132 into the edge 13 can be flexibly adjusted as needed.

[0051] like Figure 2 As shown, the edges of the triangular frame are, in sequence, the first edge, the second edge, and the third edge. The air inlet 132 is located at a corner formed by the connection of the first and second edges of the triangular frame. The overflow opening 133 is located on the first edge. Partial segments of the processing hole 131 are distributed on the second edge, and partial segments of the processing hole 131 are also present on the third edge.

[0052] Furthermore, in some embodiments, such as Figures 4 to 8 As shown, the minimum distance between the wall of the machining hole 131 and the outer surface of the edging 13 is 2mm to 4mm. Here, the outer surface of the edging 13 refers to the surface on the edging 13 that is used to contact the cavity wall.

[0053] Furthermore, such as Figures 4 to 8 As shown, the minimum distance between the wall of the machining hole 131 and the bright trim strip 12 is 2mm to 4mm. The presence of the machining hole 131 is equivalent to hollowing out the middle of the edging 13, thereby resulting in a higher consistency in thickness at the contact area with the bright trim strip 12, avoiding the uneven shrinkage force caused by a larger thickness in the middle of a traditional edging 13. Here, the thickness of the contact area on the edging 13 with the bright trim strip 12 refers to the distance between the two surfaces of the edging 13 closest to the bright trim strip 12 along the normal direction of the bright trim strip 12. Figure 8 As shown, when the normal of the bright trim 12 passes through the outer surface of the edging 13 and the wall of the machined hole 131 in sequence, the thickness of the edging 13 at that point on the bright trim 12 is the distance L1 between that point on the outer surface of the edging 13 and that point on the wall of the machined hole 131. When the normal of the bright trim 12 passes through different parts of the outer surface of the edging 13 in sequence, the thickness of the edging 13 at that point on the bright trim 12 is the distance L2 between these two different parts of the outer surface.

[0054] Furthermore, in some embodiments, such as Figures 1 to 3 As shown, the bright trim strip 12 is connected to the outer side of the edging 13. The surface of the edging 13 opposite to the outer side is the inner side, and the air inlet 132 and / or the overflow opening 133 penetrate the inner side of the edging 13 and communicate with the space outside the edging 13. The air inlet 132 and / or the overflow opening 133 are formed on the surface of the edging 13 opposite to the bright trim strip 12.

[0055] When the edging assembly 10 is installed on a vehicle, the inner side of the edging 13 faces the interior of the vehicle. Both the air intake opening 132 and the overflow opening 133 can be concealed by decorative elements further installed on the edging.

[0056] In one specific embodiment, the air intake opening 132 and / or the overflow opening 133 are located on the edging 13 opposite to the bright trim strip 12. This can be understood as the air intake opening 132 and the overflow opening 133 being obscured by the bright trim strip 12 when viewed from outside the vehicle.

[0057] Preferably, the thickness of the portion of the edging 13 where the air inlet 132 is located is greater than or equal to the thickness of other portions of the edging 13. The position of the overflow opening 133 is determined according to the area to be covered by the processing hole 131.

[0058] In some embodiments, the edging 13 is provided with a plurality of overflow openings 133, and the plurality of overflow openings 133 are arranged sequentially at intervals along the outer edge of the glass 11.

[0059] For example, overflow openings 133 are arranged at intervals on both sides of the air inlet opening 132 along the outer edge of the glass 11. When gas is introduced from the air inlet opening 132, the gas will diffuse along the edge 13 towards the two overflow openings 133. Part of the edge material flows out from one overflow opening 133, and another part of the edge material flows out from the other overflow opening 133.

[0060] In some embodiments, the edging 13 is provided with a plurality of air inlets 132, and the plurality of air inlets 132 are arranged sequentially at intervals along the outer edge of the glass 11.

[0061] When the glass 11 is relatively large and there are multiple discontinuous edging 13 structures with large thicknesses, multiple air inlets 132 can be provided. These multiple air inlets 132 can communicate with the same processing hole 131 or with different processing holes 131. In either case, each processing hole 131 corresponds to at least one air inlet 132 and one overflow opening 133.

[0062] Furthermore, an adhesive is provided on the surface of the bright trim strip 12 that contacts the edging 13 to improve the reliability of the connection between the bright trim strip 12 and the edging 13.

[0063] Furthermore, in another embodiment, a vehicle is provided that includes the aforementioned edging assembly 10.

[0064] By employing the edging assembly 10 described in any of the above embodiments in the vehicle, uneven shrinkage force during thermal expansion and contraction of the various parts of the edging 13 during use is avoided, which could lead to distortion of the bright trim strip 12.

[0065] Specifically, the edging assembly 10 is connected to the vehicle body, and the glass 11 corresponds to a window on the vehicle body.

[0066] In yet another embodiment, such as Figure 9 As shown, a method for processing an edge-binding assembly 10 is provided, including the following steps:

[0067] The cavity is formed by using glass 11, bright decorative strip 12, and mold together;

[0068] Both the air-blowing needle and the material-discharging needle are inserted into the cavity, and the air-blowing needle and the material-discharging needle are arranged sequentially at intervals along the cavity.

[0069] Inject edge-binding material into the cavity;

[0070] Before the edge binding material solidifies, gas is injected into the edge binding material using the air blowing needle to squeeze the edge binding material in the cavity, so that part of the edge binding material is discharged out of the cavity from the discharge needle.

[0071] Before the edge binding material solidifies, gas is blown into the edge binding material through the air blowing needle, and then the unsolidified edge binding material is discharged from the discharge needle, thereby forming the processing hole 131 in the edge binding 13. The processing hole 131 reduces the cross-sectional area of ​​the edge binding 13, thereby improving the consistency of the thickness of each part of the edge binding 13, and thus avoiding the distortion of the bright trim strip 12.

[0072] It should be understood that, although Figure 9 The steps in the flowchart are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order in which these steps are executed, and they can be performed in other orders. Figure 9At least some of the steps in the process may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least some of the sub-steps or stages of other steps.

[0073] The above method does not specify the order of steps 1, namely, inserting the air-blowing needle and the material-discharging needle into the cavity, with the air-blowing needle and the material-discharging needle arranged sequentially and at intervals along the cavity, and step 2, namely, injecting the edge-binding material into the cavity.

[0074] In other words, the air-blowing needle and the material-discharging needle can be inserted into the cavity before the edge-binding material is injected into the cavity, or they can be inserted into the cavity after the edge-binding material is injected into the cavity, or they can be inserted into the cavity simultaneously during the process of injecting the edge-binding material into the cavity.

[0075] The air-blowing needle and / or the discharge needle refer to devices with a through hole in the middle for fluid flow, and their specific shapes are not limited.

[0076] The tip of the air-blowing needle is inserted into the middle of the cavity, thereby ensuring that the gas blown in from the air-blowing needle compresses the unsolidified edge material in the middle, rather than the outer surface of the edge 13. The tip of the discharge needle is inserted into the middle of the cavity, ensuring that the unsolidified edge material in the middle is squeezed out, ultimately causing the processing hole 131 to be formed in the edge 13.

[0077] Specifically, in one embodiment, injecting the edge-binding material into the cavity includes the following steps:

[0078] Fill the cavity with the edge binding material.

[0079] In other words, before the edge binding material is extruded by air blowing, the cavity is filled with the edge binding material, at which point the volume of the edge binding material is equal to the volume of the cavity. The edge binding material can be simultaneously covered at various positions on the cavity wall, improving the overall appearance integrity of the final edge binding 13.

[0080] Specifically, since the entire cavity is filled with binding material, there are no traces of the binding material flowing, stopping or lingering on the appearance of the binding 13, so there will be no color difference between the various parts, thus improving the integrity and consistency of the appearance of the binding 13.

[0081] More specifically, in one embodiment, the gas injected into the cavity is an inert gas.

[0082] Using inert gas to compress the edge material can prevent the edge material from undergoing a chemical reaction and changing its properties during the formation of the processing hole 131.

[0083] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0084] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0085] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0086] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0087] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0088] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0089] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An edge-sealing assembly, characterized in that, include: Glass; Bright trim; The edging is integrally injection molded to connect the glass and the bright trim strip. The edging is arranged along the outer edge of the glass and has processing holes. The edging is provided with air inlets and overflow outlets that are connected to the processing holes. The air inlets and overflow outlets are arranged alternately along the outer edge of the glass. When the glass, the bright trim strip, and the edging are integrally injection molded, the air inlets are used to inject gas to expel the unsolidified edging material from the overflow outlets to form the processing holes. The processing holes are elongated holes distributed along the outer edge of the glass, and a portion of the elongated holes is located between the air inlets and the overflow outlets. The bright trim strip is connected to the outer side of the edging, and the side of the edging opposite to the outer side is the inner side. The air inlet and / or the overflow outlet penetrate the inner side of the edging and communicate with the space outside the edging. The air intake opening and / or the overflow opening are located on the edging opposite the bright trim strip; The minimum distance between the hole wall of the machining hole and the outer surface of the edge is 2mm~4mm; The minimum distance between the wall of the machined hole and the bright trim strip is 2mm to 4mm.

2. The edge-sealing assembly according to claim 1, characterized in that, The thickness of the portion of the edging with the air intake opening is greater than or equal to the thickness of other portions of the edging.

3. The edge-sealing assembly according to claim 1, characterized in that, A portion of the elongated hole is located on the side of the overflow opening away from the air inlet opening, and a portion of the elongated hole is located on the side of the air inlet opening away from the overflow opening.

4. The edge-binding assembly according to claim 1, characterized in that, The edging is provided with a plurality of overflow openings, which are arranged sequentially at intervals along the outer edge of the glass.

5. The edge-binding assembly according to any one of claims 1 to 4, characterized in that, The edging is provided with a plurality of air intake openings, which are arranged sequentially at intervals along the outer edge of the glass.

6. A method for processing an edge-binding assembly, applicable to processing the edge-binding assembly as described in any one of claims 1-5, characterized in that, Includes the following steps: The cavity is formed by using glass, bright decorative strips, and molds together; Both the air-blowing needle and the material-discharging needle are inserted into the cavity, and the air-blowing needle and the material-discharging needle are arranged sequentially at intervals along the cavity. Inject edge-binding material into the cavity; Before the edge binding material solidifies, gas is injected into the edge binding material using the air blowing needle to squeeze the edge binding material in the cavity, so that part of the edge binding material is discharged out of the cavity from the discharge needle.

7. The edge-binding assembly processing method according to claim 6, characterized in that, The injection of edge-binding material into the cavity specifically includes the following steps: Fill the cavity with the edge binding material.

8. The edge-wrapping assembly processing method according to claim 6 or 7, characterized in that, The gas injected into the cavity is an inert gas.

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