Integrally formed safety helmet structure
View Patent ↗An integrally formed safety helmet structure includes an assembly of a helmet shell or a shell body, a foam filling body enclosed in the shell body and a structure body. Geometrical array texture structures are disposed at the assembling interfaces between the shell body, the structure body and the foam filling body. In manufacturing, by means of a mold or molding module and solid foaming technique, the foam filling body is integrally formed to bond with the shell body and the structure body and the geometrical array texture structures so as to form a compact and rigid multilayer complex reinforcement structure. The complex reinforcement structure not only can enhance the structural strength of the entire safety helmet, but also has the advantages of material-saving, lightweight, high security and easy manufacturing.
1. An integrally formed safety helmet structure comprising an assembly of a shell body, a foam filling body enclosed in the shell body and a structure body, at least a portion of the foam filling body being positioned between the shell body and the structure body, the shell body having an inner face and a first geometrical array texture structure extending from the inner face of the shell body toward the foam filling body, the first geometrical array texture structure having multiple walls connected with each other to together define multiple solid cells, the structure body being defined by a second geometrical array texture structure, the second geometrical array texture structure having multiple walls connected with each other to together define multiple solid cells, a foam material filled in the solid cells of the first geometrical array texture structure foaming to form a first subsidiary foam filling body as an inner layer of the shell body, the first subsidiary foam filling body being bonded with the foam filling body, a cushion foam material filled in the solid cells of the second geometrical array texture structure foaming to form a second subsidiary foam filling body, the second subsidiary foam filling body being bonded with the foam filling body, wherein the shell body, the first subsidiary foam filling body forming the inner layer of the shell body, the structure body, the second subsidiary foam filling body and the foam filling body together forming an integrated helmet assembly.
2. The integrally formed safety helmet structure as claimed in claim 1 , wherein the solid cells the first geometrical array texture structure of the shell body and the solid cells of the second geometrical array texture structure of the structure body have a configuration selected from a group consisting of triangular configuration, hexagonal configuration, polygonal configuration and circular configuration, the structure body being positioned in an innermost layer position of the assembly or positioned in a position where the structure body is enclosed by a portion of the foam filling body.
3. The integrally formed safety helmet structure as claimed in claim 2 , wherein the solid cells the first geometrical array texture structure of the shell body have a depth larger than a depth of the solid cells of the second geometrical array texture structure of the structure body.
4. The integrally formed safety helmet structure as claimed in claim 3 , wherein the foaming density of the foam material in the first geometrical array texture structure is such that the foaming density of the first subsidiary foam filling body progressively increases from the regions of the first geometrical array texture structure to the region of the foam filling body, and the foaming density of the cushion foam material in the second geometrical array texture structure is such that the foaming density of the second subsidiary foam filling body progressively increases from the regions of the second geometrical array texture structure to the region of the foam filling body.
5. The integrally formed safety helmet structure as claimed in claim 2 , wherein the foaming density of the foam material in the first geometrical array texture structure is such that the foaming density of the first subsidiary foam filling body progressively increases from the regions of the first geometrical array texture structure to the region of the foam filling body, and the foaming density of the cushion foam material in the second geometrical array texture structure is such that the foaming density of the second subsidiary foam filling body progressively increases from the regions of the second geometrical array texture structure to the region of the foam filling body.
6. The integrally formed safety helmet structure as claimed in claim 1 , wherein the foam filling body has a density larger than a density of the second subsidiary foam filling body and the density of the second subsidiary foam filling body is larger than a density of the first subsidiary foam filling body.
7. The integrally formed safety helmet structure as claimed in claim 6 , wherein the solid cells the first geometrical array texture structure of the shell body have a depth larger than a depth of the solid cells of the second geometrical array texture structure of the structure body.
8. The integrally formed safety helmet structure as claimed in claim 7 , wherein the foaming density of the foam material in the first geometrical array texture structure is such that the foaming density of the first subsidiary foam filling body progressively increases from the regions of the first geometrical array texture structure to the region of the foam filling body, and the foaming density of the cushion foam material in the second geometrical array texture structure is such that the foaming density of the second subsidiary foam filling body progressively increases from the regions of the second geometrical array texture structure to the region of the foam filling body.
9. The integrally formed safety helmet structure as claimed in claim 6 , wherein the foaming density of the foam material in the first geometrical array texture structure is such that the foaming density of the first subsidiary foam filling body progressively increases from the regions of the first geometrical array texture structure to the region of the foam filling body, and the foaming density of the cushion foam material in the second geometrical array texture structure is such that the foaming density of the second subsidiary foam filling body progressively increases from the regions of the second geometrical array texture structure to the region of the foam filling body.
10. The integrally formed safety helmet structure as claimed in claim 6 , wherein the structure body is a cap-shaped structure in the form of a hemispherical body, an annular subsidiary section being formed on a bottom of the structure body, the subsidiary section enclosing and connecting with a bottom of the foam filling body.
11. The integrally formed safety helmet structure as claimed in claim 10 , wherein the subsidiary section is formed with an insertion channel for fixedly holding a bottom edge of the shell body, a recess being formed between an inner side of the subsidiary section and the foam filling body.
12. The integrally formed safety helmet structure as claimed in claim 6 , wherein the foam filling body, the first subsidiary foam filling body and the second subsidiary foam filling body are formed of solid foam granules by means of heating and expanding the solid foam granules.
13. The integrally formed safety helmet structure as claimed in claim 1 , wherein the solid cells the first geometrical array texture structure of the shell body have a depth larger than a depth of the solid cells of the second geometrical array texture structure of the structure body.
14. The integrally formed safety helmet structure as claimed in claim 13 , wherein the foaming density of the foam material in the first geometrical array texture structure is such that the foaming density of the first subsidiary foam filling body progressively increases from the regions of the first geometrical array texture structure to the region of the foam filling body, and the foaming density of the cushion foam material in the second geometrical array texture structure is such that the foaming density of the second subsidiary foam filling body progressively increases from the regions of the second geometrical array texture structure to the region of the foam filling body.
15. The integrally formed safety helmet structure as claimed in claim 13 , wherein the foam filling body, the first subsidiary foam filling body and the second subsidiary foam filling body are formed of solid foam granules by means of heating and expanding the solid foam granules.
16. The integrally formed safety helmet structure as claimed in claim 1 , wherein the foaming density of the foam material in the first geometrical array texture structure is such that the foaming density of the first subsidiary foam filling body progressively increases from the regions of the first geometrical array texture structure to the region of the foam filling body, and the foaming density of the cushion foam material in the second geometrical array texture structure is such that the foaming density of the second subsidiary foam filling body progressively increases from the regions of the second geometrical array texture structure to the region of the foam filling body.
17. The integrally formed safety helmet structure as claimed in claim 1 , wherein the structure body is a cap-shaped structure in the form of a hemispherical body, an annular subsidiary section being formed on a bottom of the structure body, the subsidiary section enclosing and connecting with a bottom of the foam filling body.
18. The integrally formed safety helmet structure as claimed in claim 17 , wherein the subsidiary section is formed with an insertion channel for fixedly holding a bottom edge of the shell body, a recess being formed between an inner side of the subsidiary section and the foam filling body.
19. The integrally formed safety helmet structure as claimed in claim 1 , wherein the foam filling body, the first subsidiary foam filling body and the second subsidiary foam filling body are formed of solid foam granules by means of heating and expanding the solid foam granules.