child seat

Abstract

Child seat (1), comprising; a main body (11) wherein a plurality of air openings (113) are formed on the main body (11) and penetrate the main body (11) along a direction of the main body (11) from front to back; and wherein the main body (11) has a support area (111), a perimeter rib (112) which surrounds and is attached to the support area (111), and a flexible layer (12) which is formed on a surface of the main body (11) and in the plurality of air openings (113), wherein the plurality of air openings (113) is formed on the perimeter rib (112).

Description

Field of invention

[0001] The present invention relates to a child car seat. Background of the invention

[0002] A child car seat is a safety device required to protect a child during a car journey. A conventional manufacturing method for child car seats involves first molding a main body and then attaching a seat cushion or pillow to it. The main body is often made of thermoplastics, such as polypropylene (PP), which are injected into a mold. The rigidity of the molded main body necessitates the addition of the seat cushion or pillow to improve the comfort and safety of the child. However, attaching the seat cushion or pillow to the main body requires the incorporation of appropriate fastening structures, resulting in increased costs and longer assembly times.

[0003] To solve the aforementioned problem, Chinese patent application CN101731880A provides a manufacturing process for a child car seat in which a flexible layer is formed directly onto the main body through a foaming process, instead of adding an additional seat cushion or pillow to the main body. The conventional foaming process includes the steps of arranging the main body of the child car seat in a mold, injecting thermoplastic foam material (such as expanded polypropylene, EPP) after closing the mold to form the flexible layer covering the main body, demolding the mold after the foamed flexible layer has cooled, drying and cooling the main body and the attached flexible layer, and deburring the child car seat.

[0004] The operating principle of the aforementioned foaming process is as follows: After the foam material is injected into the mold, high-temperature steam is injected to create an environment with a specific temperature and pressure. This causes the foam particles to expand, bonding them to the main body to form a flexible layer. However, in current manufacturing processes, the steam is often blocked by the main body within the mold and cannot make full contact with some of the foam particles. This negatively impacts the foam quality and the resulting quality of the flexible layer, leading to poor bond strength between the flexible layer and the main body. Furthermore, the main body lacks the necessary attachment structures to secure the flexible layer, increasing the risk of the flexible layer detaching from the main body. Summary of the invention

[0005] Against this background, the object of the present invention is to provide a child seat with a main body that is firmly connected to a flexible layer.

[0006] This problem is solved by a child car seat according to claim 1. The dependent claims relate to corresponding further training and improvements.

[0007] As will become clearer from the following detailed description, the child car seat in question comprises a main body and a flexible layer. A multitude of air openings, penetrating the main body from front to back, are formed on the main body. A flexible layer is formed on one surface of the main body and within the multitude of air openings.

[0008] According to the invention, the main body comprises a support section and an edge rib that surrounds and is attached to the support section. The plurality of air openings are formed on the edge rib.

[0009] Preferably, the opening diameter of a front end of each of the plurality of air openings is larger than the opening diameter of a rear end of the air opening.

[0010] Furthermore, preferably the opening diameter of each of the plurality of air openings decreases gradually from the front end of the air opening to the rear end of the air opening.

[0011] Furthermore, a large number of engagement areas preferably project from the marginal rib. The flexible layer envelops these numerous engagement areas.

[0012] Preferably, a free end of each of the multiple engagement areas is bent in a hook shape.

[0013] Furthermore, a large number of intervention areas protrude from the main body. The flexible layer envelops these numerous intervention areas.

[0014] Preferably, the flexible layer is made of a foam.

[0015] In summary, the multitude of air openings formed on the main body of the invention allows steam to flow through the air openings without being blocked by the main body during a foaming process. This enables foam particles to come into full contact with the steam, ensuring enhanced foaming action. Furthermore, the flexible layer is not only formed on a surface of the main body but also within the multitude of air openings to fill them. This firmly bonds the flexible layer to the main body, reducing the risk of detachment.

[0016] These and other problems of the present invention will undoubtedly become obvious to the person skilled in the art after reading the following detailed description of the preferred embodiment, which is illustrated in the various figures and drawings. Brief descriptions of the drawings

[0017] The invention is explained in more detail below by way of example with reference to the accompanying drawings. These show Fig. 1 a representation of a main body of a child car seat according to an embodiment of the present invention, Fig. 2 a perspective view of the child seat according to the embodiment of the present invention, and Fig. 3 A representation of an air opening on the main body according to the embodiment of the present invention. Detailed description

[0018] In the following detailed description of preferred embodiments, reference is made to the accompanying drawings, which form part thereof and in which specific embodiments are illustrated by way of example, by means of which the invention can be carried out. In this context, directional terminology such as "top," "bottom," "front," "back," etc., is used with regard to the orientation of the figure(s) being described. The components of the present invention can be positioned in a number of different orientations. Therefore, the directional terminology is used for illustrative purposes and is in no way limiting. Accordingly, the drawings and descriptions are to be regarded as illustrative in themselves and not limiting.

[0019] It will be on Fig. 1 referenced. Fig. Figure 1 shows a view of the main body 11 of a child car seat 1 according to an embodiment of the present invention. The child car seat 1, which does not require the installation of a seat cushion or pillow, is provided by the present application. The child car seat 1 comprises the main body 11 and a flexible layer 12. The main body 11 is individually shaped before being placed in a mold. The flexible layer 12 is formed on a surface of the main body 11 by a foaming process, and the formed flexible layer 12 adheres to and completely covers the main body 11. The hardness of the flexible layer 12 is less than that of the main body 11, which ensures comfort and safety for the child sitting in the child car seat 1.

[0020] It will be on Fig. 1 and Fig. 2. Referenced. Fig. Figure 2 shows a perspective view of the child seat 1 according to the embodiment of the present invention. The main body 11 can be formed from polypropylene (PP) in an injection mold by an injection molding process. The main body 11 comprises a support area 111 and an edge rib 112, which surrounds and is attached to an edge of the support area 111. The support area 111 mainly encloses a space in the center of the support area 111 for the child to sit in. The edge rib 112 extends outwards relative to a circumferential wall of the support area 111. One side, which the child faces when sitting in the main body 11, is defined as the front of the main body 11, and one side opposite the front is defined as the back of the main body 11.A plurality of air openings 113 are formed on the edge rib 112 of the main body 11 and penetrate the main body 11 along a front-to-back direction. The air openings 113 can be compactly or loosely distributed around the edge rib 112 or arranged on a specific section of the edge rib 112. The air openings 113 can, by way of example, but not limited to, be circular, elliptical, square, or any other shape, penetrating the edge rib 112 from front to back. The air openings 113 can, by way of example, be of a constant diameter. Furthermore, the air opening 113 of the exemplary embodiment can, by way of example, also have a diameter at a front end that is larger than the diameter at a rear end. [It is referred to...] Fig. 3. Referenced. Fig. Figure 3 shows a representation of the air opening 113 on the main body 11 according to the embodiment of the present invention. Preferably, the opening diameter can decrease gradually from the front end to the rear end. The air openings 113 can be formed directly by complementary projecting structures in a cavity of the mold during a forming process of the main body 11, or by drilling after completion of the forming process of the main body 11.

[0021] It will be on Fig. 2 Reference is made to this. A plurality of engagement areas 114 project from the edge rib 112, and the engagement areas 114 may be arranged closer to the edge of the edge rib 112 than the air openings 113. A free end of each of the engagement areas 114 may be bent in a hook shape, the shape of which is not limited to the exemplary embodiment and may furthermore be designed, for example, as a cylinder or as an inverted circular base. The size of the free end of each of the engagement areas 114 may be larger than the size of a fixed end of each of the engagement areas 114 to improve the engagement effect.

[0022] It will be on Fig. 1 and Fig.2. The flexible layer 12 can be made of a foam material, such as expanded polypropylene (EPP), and can be designed to cover the surface of the main body 11 and the engagement areas 114 on the main body 11. The foam material can also penetrate the air openings 113 to form the flexible layer 12. Compared to a conventional child car seat, the flexible layer 12 is more firmly connected to the main body 11 because it is formed in the air openings 113 and covers the engagement areas 114.The front face of the main body 11 is a primary point of formation during a foaming process, and a firm connection between the flexible layer 12 and the main body 11 can be achieved not only by the structural design of the air vents 113, which have a larger diameter at the front end than at the rear, but also, as described above, by hook-shaped bending of the free end of the engagement area 114. Furthermore, the air vents 113 allow the vapor to flow through the main body 11 in the mold without being blocked by the main body 11 during the foaming process, thus ensuring that the foam particles come into full contact with the vapor and foam completely. This guarantees the quality of the formed flexible layer 12.

[0023] In further embodiments of the present invention, the air openings 113 and the engagement areas 114 can be arranged on the support area 111 of the main body 11 instead of on the edge rib 112, and the engagement areas 114 can even be omitted if only the air openings 113 are present. It should be noted that the aforementioned configurations are also capable of facilitating a firm connection between the flexible layer 12 and the main body 11.

[0024] In contrast to the prior art, the air openings 113 formed on the main body 11 of the present invention allow the vapor to flow through the air openings 113 without being blocked by the main body 11 during a foaming process. This allows the foam particles to come into complete contact with the vapor, ensuring improved foaming effect. Furthermore, the flexible layer 12 can be formed not only on the surface of the main body 11, but also within the plurality of air openings 113 to fill them. This firmly bonds the flexible layer 12 to the main body, reducing the risk of detachment.

Claims

[1] Child seat (1), comprising; a main body (11) wherein a plurality of air openings (113) are formed on the main body (11) and penetrate the main body (11) along a direction of the main body (11) from front to back; and wherein the main body (11) has a support area (111), a perimeter rib (112) which surrounds and is attached to the support area (111), and a flexible layer (12) which is formed on a surface of the main body (11) and in the plurality of air openings (113), wherein the plurality of air openings (113) is formed on the perimeter rib (112). [2] Child seat (1) according to claim 1, wherein an opening diameter of a front end of each of the plurality of air openings (113) is larger than an opening diameter of a rear end of the air opening. [3] Child seat (1) according to claim 2, wherein the opening diameter of each of the plurality of air openings (113) gradually decreases from the front end of the air opening to the rear end of the air opening. [4] Child seat (1) according to claim 1, wherein a plurality of engagement areas (114) project from the edge rib (112) to engage with the flexible layer (12), and the flexible layer (12) encloses the plurality of engagement areas (114). [5] Child seat (1) according to claim 1, characterized by , that a multitude of intervention areas (114) project from the main body (11) to engage with the flexible layer (12), and the flexible layer (12) envelops the multitude of intervention areas. [6] Child seat (1) according to claim 4 or 5, wherein a free end of each of the plurality of engagement areas (114) is bent in a hook shape. [7] Child seat (1) according to claim 4, wherein the engagement areas (114) are arranged closer to an edge of the rim rib (112) than the air openings (113) . [8] Child seat (1) according to claim 1, wherein the flexible layer (12) is made of foam. [9] Child seat (1) according to claim 1, wherein the air openings (113) are formed directly by complementary projecting structures in a cavity of a mold during a molding process of the main body (11).

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