Automobile seat trim and backrest backplate

Abstract

The application discloses a kind of automobile seat ornaments and backrest backboard, automobile seat ornaments include shell layer, decorative layer and base layer, the shell layer is set in base layer outside, the decorative layer is between shell layer and base layer, the shell layer is transparent, the inner surface of decorative layer and base layer is fixedly connected, or the inner surface of decorative layer and shell layer is fixedly connected.Backrest backboard includes automobile seat ornaments.The application also discloses a kind of automobile seat ornaments by secondary injection molding method to manufacture.The application is displayed by transparent shell layer with mirror surface effect decorative layer, increase the beauty and grade sense of ornament, the connection of shell layer and base layer is realized by secondary injection molding mode, improve the integrity and stability of ornament assembly.

Description

Technical Field

[0001] This invention belongs to the field of automotive seat technology, specifically relating to an automotive seat trim and backrest panel, as well as a method for manufacturing the automotive seat trim. Background Technology

[0002] Car seats are essential components inside a vehicle, providing support and protection for drivers, passengers, and other occupants. With the rapid development of the automotive industry, consumers have placed higher demands on car seats; in addition to basic safety and comfort, aesthetics are also receiving increasing attention.

[0003] Currently, the structure of car seat back panel trim pieces on the market is simple. The outer surface of the trim pieces is painted or electroplated, resulting in a limited variety of forms. Moreover, the decorative effect is only on the outer surface of the trim pieces, making them prone to scratches, damage, oxidation, and aging. Furthermore, the outer surface of the trim pieces is generally flat, resulting in a poor visual effect and reducing the passenger's experience. Summary of the Invention

[0004] To address the aforementioned technical problems, the present invention aims to provide an automotive seat trim piece and backrest panel. The transparent outer shell layer showcases a mirror-like decorative layer, enhancing the aesthetics and sophistication of the trim piece. The connection between the outer shell layer and the base layer is achieved through secondary injection molding, improving the integrity and stability of the trim piece assembly.

[0005] To achieve the above-mentioned objectives, the technical solution adopted by the present invention is as follows:

[0006] In a first aspect, the present invention provides an automotive seat trim, comprising an outer shell layer, a trim layer, and a base layer, wherein the outer shell layer is sleeved over the base layer, the trim layer is located between the outer shell layer and the base layer, the outer shell layer is transparent, and the trim layer is fixedly connected to the inner surface of the base layer, or the trim layer is fixedly connected to the inner surface of the outer shell layer.

[0007] The outer shell is fitted over the base layer to achieve the integrity of the decorative assembly. The transparent and light-transmitting outer shell serves to display and protect the decorative layer. The decorative layer needs to be connected to the outer shell or base layer for fixation to prevent the decorative layer from being loose within the decorative assembly.

[0008] Preferably, the top surface of the outer shell layer is provided with an upward flange, and the bottom surface of the outer shell layer is provided with a downward flange. The direction of both the upward flange and the downward flange is towards the base layer. The upward flange is provided with a first fixing boss facing downward, and the downward flange is provided with a second fixing boss facing upward. The outer shell layer and the base layer are locked together by the first fixing boss and the second fixing boss.

[0009] It should be noted that, since the outer shell layer needs to cover the base layer, in order to avoid damaging the decorative layer, after the base layer is injection molded once, the decorative layer is set on the base layer, and then the outer shell layer is injection molded a second time based on the base layer.

[0010] More preferably, the top surface of the base layer is provided with a first mating groove that mates with the first fixing boss, and the bottom surface of the base layer is provided with a second mating groove that mates with the second fixing boss. During secondary injection molding, the first fixing boss is formed in the first mating groove, and the second fixing boss is formed in the second mating groove.

[0011] More preferably, the outer surface of the base layer is provided with a positioning groove to facilitate secondary injection molding.

[0012] Preferably, the decorative layer is a plating layer that covers the inner surface of the base layer. It is easy to understand that the plating layer can be applied to either the inner surface of the outer shell layer or the inner surface of the base layer. However, considering that the outer shell layer needs to wrap around the base layer, to prevent the decorative layer from being damaged, it is preferable to apply the decorative layer to the inner surface of the base layer, giving the base layer a mirror-like reflective effect and a metallic texture.

[0013] More preferably, the inner surface of the base layer can be provided with a three-dimensional geometric texture, so that the decorative layer has a three-dimensional mirror effect.

[0014] Preferably, the outer surface of the base layer is provided with reinforcing ribs.

[0015] Preferably, the outer surface of the base layer is provided with connecting posts for connection to other components of the car seat.

[0016] Preferably, the first mating groove is provided with a plurality of first fixing keyways, the first fixing boss is provided with a plurality of first fixing keys adapted to the first fixing groove, the second mating groove is provided with a plurality of second fixing keyways, and the second fixing boss is provided with a plurality of second fixing keys adapted to the second fixing groove. When the outer shell layer is connected to the base layer, the fixing keys are correspondingly embedded in the keyways.

[0017] In a second aspect, the present invention provides a backrest panel including the aforementioned automotive seat trim. The automotive seat trim is fixedly connected to the backrest panel via a connecting post.

[0018] In a third aspect, the present invention provides a method for manufacturing an automotive seat trim piece, the specific steps of which are as follows:

[0019] S1, base layer formed by one-time injection molding;

[0020] S2. A decorative layer is provided on the base layer. Specifically, the decorative layer is a plating layer, which is formed on the inner surface of the base layer by electroplating, vacuum plating or spraying.

[0021] S3. Based on the base layer covered with the decorative layer, the outer shell layer is injection molded in a second stage to complete the manufacturing of the automotive seat trim.

[0022] Beneficial effects:

[0023] This invention utilizes a two-stage injection molding process to place the decorative layer between the outer shell layer and the base layer. The transparent and light-transmitting outer shell layer serves to protect and display the decorative layer. Furthermore, the decorative layer is a plating layer covering the inner surface of the base layer, giving the decorative assembly a three-dimensional mirror effect and a metallic texture, resulting in good aesthetics and a high-end feel. Due to the two-stage injection molding process, the outer shell layer, decorative layer, and base layer are tightly integrated, greatly improving the integrity of the decorative assembly. Attached Figure Description

[0024] Figure 1 The image shown is an exploded view of the decorative component assembly of the present invention;

[0025] Figure 2 The figure shown is a cross-sectional schematic diagram of the base layer of the present invention;

[0026] Figure 3 The diagram shown is a cross-sectional schematic of the outer shell layer of the present invention;

[0027] Figure 4 The diagram shown is a cross-sectional view of the connection between the outer shell layer and the base layer of the present invention.

[0028] Reference numerals: 1-base layer, 2-outer shell layer, 3-decorative layer, 4-connecting column, 5-first mating groove, 6-second mating groove, 7-positioning groove, 8-reinforcing rib, 9-upper flange, 10-lower flange, 11-first fixing boss, 12-second fixing boss. Detailed Implementation

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0030] This invention provides an automotive seat trim component, comprising an outer shell layer 2, a decorative layer 3, and a base layer 1, as shown below. Figure 1-4As shown, the outer shell layer 2 surrounds the base layer 1, and the decorative layer 3 is located between the outer shell layer 2 and the base layer 1. The outer shell layer 2 is made of a transparent material, such as PC, PMMA, or crystal. The base layer 1 can be made of a transparent material or an opaque material. In this invention, the base layer 1 is made of an opaque material. The outer shell layer 2 has two main functions: first, to protect the decorative layer 3 from external influences; and second, to make the decorative layer 3 visible. In addition, since the outer shell layer 2 needs to display the decorative effect, the outer shell layer 2 and the decorative layer 3 cannot be fixed by means of bonding or other methods. Instead, the decorative layer 3 is fixedly connected to the base layer 1, and the base layer 1 is fixedly connected to the outer shell 2, thereby realizing the integration of the decorative component assembly.

[0031] like Figure 4 As shown in the diagram, the inner surface of the outer shell layer 2 refers to the side of the outer shell layer 2 that is close to the decorative layer 3 and the base layer 1, and the outer surface of the outer shell layer 2 refers to the side of the outer shell layer 2 that is away from the decorative layer 3 and the base layer 1. The top of the outer shell layer 2 is the top surface of the outer shell layer 2, the bottom of the outer shell layer 2 is the bottom surface of the outer shell layer 2, and the other two sides are the left and right sides of the outer shell layer 2. The inner surface of the base layer 1 refers to the side of the base layer 1 that is close to the decorative layer 3 and the outer shell layer 2, and the outer surface of the base layer 1 refers to the side of the base layer 1 that is away from the decorative layer 3 and the outer shell layer 2. The top of the base layer 1 is the top surface of the base layer 1, the bottom of the base layer 1 is the bottom surface of the base layer 1, and the other two sides are the left and right sides of the base layer 1.

[0032] The connection between the decorative layer 3 and the base layer 1 can be varied. For example, the decorative layer 3 can be an independent component, fixed to the base layer 1 by screws or by adhesive. Alternatively, the decorative layer 3 can be a plating layer covering the inner surface of the base layer 1. Preferably, in this invention, the decorative layer 3 is preferably a plating layer, which can be formed on the inner surface of the base layer 1 by electroplating, vacuum plating, or painting, giving the base layer 1 a mirror-like reflective effect and a metallic texture.

[0033] When decorative layer 3 is a plating layer, its decorative effect is directly related to the texture of the inner surface of base layer 1. Furthermore, the inner surface of base layer 1 can be textured with three-dimensional geometric patterns, such as... Figure 1 As shown, the coating covering the inner surface of the base layer 1 has a three-dimensional effect.

[0034] like Figure 3 As shown, the inner surface of the outer shell layer 2 is provided with a space to accommodate the base layer 1. Specifically, the top surface of the outer shell layer 2 is provided with an upward flange 9, and the bottom surface of the outer shell layer 2 is provided with a downward flange 10. The direction of both the upward flange 9 and the downward flange 10 is towards the base layer 1. The upward flange 9 is provided with a first fixed boss 11 facing downward, and the downward flange 10 is provided with a second fixed boss 12 facing upward. The upward flange 9, the downward flange 10, and the two fixed bosses form a space to accommodate the base layer 1.

[0035] Due to the structural design of the outer shell layer 2, the conventional connection method—that is, manufacturing the outer shell layer 2 and the base layer 1 separately and then combining them—has a significant impact on the decorative layer 3, easily causing irreversible damage. In this invention, the outer shell layer 2 and the base layer 1 are connected through a secondary injection molding process. This connection method is suitable for situations where the decorative layer is a plating layer or an independent component. The secondary injection molding of the outer shell layer 2 can effectively avoid the impact on the decorative layer 3.

[0036] The outer surface of the base layer 1 is provided with a positioning groove 7, which is used to position the base layer 1 during the secondary injection molding of the outer shell layer 2.

[0037] Furthermore, the top surface of the base layer 1 is provided with a first mating groove 5 that mates with the first fixed boss 11, and the bottom surface of the base layer 1 is provided with a second mating groove 6 that mates with the second fixed boss 12. During secondary injection molding, the first fixed boss 11 engages with the first mating groove 5, and the second fixed boss 12 engages with the second mating groove 6, thereby locking the outer shell layer 2 and the base layer 1.

[0038] To improve the alignment between the outer shell layer 2 and the base layer 1, the base layer 1 has first mating edges with undulating shapes on both sides, and the outer shell layer 2 has second mating edges that match the first mating edges on both sides. When the outer shell layer 2 is injection molded on the base layer 1, the first mating edge and the second mating edge on the same side fit together to form a complete plane.

[0039] A reinforcing rib 8 is also provided on the outer surface of the base layer 1 to improve the strength of the decorative component assembly. A connecting post 4 is also provided on the outer surface of the base layer 1, through which the decorative component assembly is fixedly connected to the backrest panel.

[0040] For the outer shell layer 2 manufactured by secondary injection molding, the two mating grooves of the outer shell layer 2, decorative layer 3, and base layer 1 are completely fitted. The integrity of the decorative assembly mainly relies on the adhesive force between the outer shell layer 2 and the decorative layer 3, and the bonding force between the decorative layer 3 and the base layer 1. When the outer shell layer 2 and the base layer 1 are subjected to opposite forces in the lateral direction, they may separate, or even damage the decorative layer 3. Therefore, further, the first mating groove 5 is provided with multiple first fixing keyways, the first fixing boss 11 is provided with multiple first fixing keys adapted to the first fixing grooves, the second mating groove 6 is provided with multiple second fixing keyways, and the second fixing boss 12 is provided with multiple second fixing keys adapted to the second fixing grooves (not shown in the attached figure). When the outer shell layer 2 is connected to the base layer 1, the fixing keys are correspondingly embedded in the keyways. It is easy to understand that the fixing keys are formed during the secondary injection molding process. Uncured material flows into the fixing keyways and forms the fixing keys after molding. Due to the connection between the fixing keys and the fixing keyways, the separation of the outer shell layer 2 and the base layer 1 in the lateral direction is restricted.

[0041] This invention also provides a method for manufacturing automotive seat trim parts, the specific steps of which are as follows:

[0042] S1, One-time injection molded base layer 1;

[0043] S2. A decorative layer 3 is provided on the base layer 1. Specifically, the decorative layer 3 is a plating layer, which is formed on the inner surface of the base layer 1 by electroplating, vacuum plating or spraying.

[0044] S3. Based on the base layer 1 covered with decorative layer 3, perform secondary injection molding of the outer shell layer 2 to complete the manufacturing of the automotive seat trim.

[0045] The embodiments provided by the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention, and the descriptions of the embodiments above are only for the purpose of helping to understand the core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An automotive seat trim, characterized by comprising: The automobile seat decoration piece comprises a shell layer (2), a decoration layer (3) and a base layer (1), the shell layer (2) is sleeved outside the base layer (1), the decoration layer (3) is between the shell layer (2) and the base layer (1), the shell layer (2) is transparent, the decoration layer (3) is fixedly connected with the inner surface of the base layer (1), or the decoration layer (3) is fixedly connected with the inner surface of the shell layer (2); The top surface of the shell layer (2) is provided with an upper turning edge (9), the bottom surface of the shell layer (2) is provided with a lower turning edge (10), the directions of the upper turning edge (9) and the lower turning edge (10) are both towards the base layer (1), the upper turning edge (9) is provided with a first fixed boss (11) facing downwards, the lower turning edge (10) is provided with a second fixed boss (12) facing upwards, and the shell layer (2) and the base layer (1) are locked through the first fixed boss (11) and the second fixed boss (12); The top surface of the base layer (1) is provided with a first butt joint groove (5) matched with the first fixed boss (11), and the bottom surface of the base layer (1) is provided with a second butt joint groove (6) matched with the second fixed boss (12); The decoration layer (3) is a plating layer covering the inner surface of the base layer (1); The inner surface of the base layer (1) is provided with a three-dimensional geometric texture; The outer surface of the base layer (1) is provided with a positioning groove (7) facilitating secondary injection molding, and the shell layer (2) and the base layer (1) are connected through the secondary injection molding.

2. The automotive seat trim of claim 1, wherein The outer surface of the base layer (1) is provided with a reinforcing rib (8), and the outer surface of the base layer (1) is provided with a connecting column (4) connected with other parts of the automobile seat.

3. The automotive seat trim of claim 1, wherein The first butt joint groove (5) is provided with a plurality of first fixed key grooves, the first fixed boss (11) is provided with a plurality of first fixed keys matched with the first fixed grooves, the second butt joint groove (6) is provided with a plurality of second fixed key grooves, and the second fixed boss (12) is provided with a plurality of second fixed keys matched with the second fixed grooves, when the shell layer (2) and the base layer (1) are connected, the fixed keys are embedded into the key grooves.

4. A backrest back panel characterised in that, The automobile seat decoration piece comprises a shell layer (2), a decoration layer (3) and a base layer (1), the shell layer (2) is sleeved outside the base layer (1), the decoration layer (3) is between the shell layer (2) and the base layer (1), the shell layer (2) is transparent, the decoration layer (3) is fixedly connected with the inner surface of the base layer (1), or the decoration layer (3) is fixedly connected with the inner surface of the shell layer (2); 5. A method of manufacturing an automobile seat trim member, characterized by, The top surface of the shell layer (2) is provided with an upper turning edge (9), the bottom surface of the shell layer (2) is provided with a lower turning edge (10), the directions of the upper turning edge (9) and the lower turning edge (10) are both towards the base layer (1), the upper turning edge (9) is provided with a first fixed boss (11) facing downwards, the lower turning edge (10) is provided with a second fixed boss (12) facing upwards, and the shell layer (2) and the base layer (1) are locked through the first fixed boss (11) and the second fixed boss (12); The top surface of the base layer (1) is provided with a first butt joint groove (5) matched with the first fixed boss (11), and the bottom surface of the base layer (1) is provided with a second butt joint groove (6) matched with the second fixed boss (12); The decoration layer (3) is a plating layer covering the inner surface of the base layer (1); The inner surface of the base layer (1) is provided with a three-dimensional geometric texture; The outer surface of the base layer (1) is provided with a positioning groove (7) facilitating secondary injection molding, and the shell layer (2) and the base layer (1) are connected through the secondary injection molding. The outer surface of the base layer (1) is provided with a reinforcing rib (8), and the outer surface of the base layer (1) is provided with a connecting column (4) connected with other parts of the automobile seat. The first butt joint groove (5) is provided with a plurality of first fixed key grooves, the first fixed boss (11) is provided with a plurality of first fixed keys matched with the first fixed grooves, the second butt joint groove (6) is provided with a plurality of second fixed key grooves, and the second fixed boss (12) is provided with a plurality of second fixed keys matched with the second fixed grooves, when the shell layer (2) and the base layer (1) are connected, the fixed keys are embedded into the key grooves. The automobile seat decoration piece comprises a shell layer (2), a decoration layer (3) and a base layer (1), the shell layer (2) is sleeved outside the base layer (1), the decoration layer (3) is between the shell layer (2) and the base layer (1), the shell layer (2) is transparent, the decoration layer (3) is fixedly connected with the inner surface of the base layer (1), or the decoration layer (3) is fixedly connected with the inner surface of the shell layer (2); The top surface of the shell layer (2) is provided with an upper turning edge (9), the bottom surface of the shell layer (2) is provided with a lower turning edge (10), the directions of the upper turning edge (9) and the lower turning edge (10) are both towards the base layer (1), the upper turning edge (9) is provided with a first fixed boss (11) facing downwards, the lower turning edge (10) is provided with a second fixed boss (12) facing upwards, and the shell layer (2) and the base layer (1) are locked through the first fixed boss (11) and the second fixed boss (12); The top surface of the base layer (1) is provided with a first butt joint groove (5) matched with the first fixed boss (11), and the bottom surface of the base layer (1) is provided with a second butt joint groove (6) matched with the second fixed boss (12); The decoration layer (3) is a plating layer covering the inner surface of the base layer (1); The inner surface of the base layer (1) is provided with a three-dimensional geometric texture; The outer surface of the base layer (1) is provided with a positioning groove (7) facilitating secondary injection molding, and the shell layer (2) and the base layer (1) are connected through the secondary injection molding. The outer surface of the base layer (1) is provided with a reinforcing rib (8), and the outer surface of the base layer (1) is provided with a connecting column (4) connected with other parts of the automobile seat. The first butt joint groove (5) is provided with a plurality of first fixed key grooves, the first fixed boss (11) is provided with a plurality of first fixed keys matched with the first fixed grooves, the second butt joint groove (6) is provided with a plurality of second fixed key grooves, and the second fixed boss (12) is provided with a plurality of second fixed keys matched with the second fixed grooves, when the shell layer (2) and the base layer (1) are connected, the fixed keys are embedded into the key grooves. The automobile seat decoration piece comprises a shell layer (2), a decoration layer (3) and a base layer (1), the shell layer (2) is sleeved outside the base layer (1), the decoration layer (3) is between the shell layer (2) and the base layer (1), the shell layer (2) is transparent, the decoration layer (3) is fixedly connected with the inner surface of the base layer (1), or the decoration layer (3) is fixedly connected with the inner surface of the shell layer (2); The top surface of the shell layer (2) is provided with an upper turning edge (9), the bottom surface of the shell layer (2) is provided with a lower turning edge (10), the directions of the upper turning edge (9) and the lower turning edge (10) are both towards the base layer (1), the upper turning edge (9) is provided with a first fixed boss (11) facing downwards, the lower turning edge (10) is provided with a second fixed boss (12) facing upwards, and the shell layer (2) and the base layer (1) are locked through the first fixed boss (11) and the second fixed boss (12); The top surface of the base layer (1) is provided with a first butt joint groove (5) matched with the first fixed boss (11), and the bottom surface of the base layer (1) is provided with a second butt joint groove (6) matched with the second fixed boss (12); The decoration layer (3) is a plating layer covering the inner surface of the base layer (1); The inner surface of the base layer (1) is provided with a

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