TWI589238B - Integrated safety helmet structure - Google Patents

Description

One-piece safety helmet structure

The invention relates to an integrally formed safety helmet structure; in particular to a combined design of a buffer foaming filling body combined with a shell and a structure body, thereby forming a unitary reinforcing structure by composite molding, so that the overall safety helmet can be made more Lightweight and highly secure technology.

It has been known in the art to apply a plastic housing with an impact-resistant filler formed by heating a foamed material and to closely bond the plastic casing to the foamed filler body to complete a safety helmet or helmet structure. For example, Figures 1 and 2 provide a typical embodiment.

A subject of structural design and safety in this type of safety helmet is to apply a plastic shell A to coat an (EPS) low-density foamed filler B1, and then to composite a high density on the inner surface of the low-density foamed filler B1. Foamed filler body B2; the helmet mainly uses external rubber shell A to resist the initial impact piercing force of the sharp object, and at the same time provides peripheral polymerization force to the low-density foamed filler body B1, so that the low-density foamed filler body B1 Provides a softer and higher shrinkage function to disperse and transmit the impact force, so that the high-density foamed filler body B2 with relatively hard and brittle material properties can provide sufficient support strength to withstand the strong external force impact. The external impact force prevents the innermost high-density foamed filler body B2 from being broken and losing the protective effect.

It can be understood that the high-density foamed filler body B2 is located at the position closest to the wearer's head. If the support strength and the protective effect of the high-density foamed filler body B2 are increased, the density is increased, which may result in Uncomfortable wearing.

Therefore, at this stage, the method shown in Fig. 1 is usually adopted to strengthen the thickness of the outer shell A to increase its peripheral polymerization force to ensure that the foamed filler (B1 or B2) is not excessively added. Large thicknesses that affect the volume of the helmet provide sufficient capacity to disperse, transfer, and ride external impact forces. However, as those skilled in the art know, increasing the thickness of the shell not only increases the cost of the material, but also increases the overall weight and wearing burden and discomfort of the cap.

In order to improve the situation, FIG. 2 discloses a possible embodiment; a soft shock absorbing material made of ethylene vinyl acetate copolymerized plastic raw material (or EVA) is disposed between the shell A and the foamed filler B. The block C defines a shock absorbing buffer space D between the shell A and the foamed filler B. The space D provides an auxiliary shock absorbing and buffering action by the block C to protect the foamed filling body B, avoiding the external impact force directly reaching the foaming filling body B, and destroying the buffering and dispersing of the foaming filling body B. Transfer role.

It can be understood that the embodiment disclosed in FIG. 2 must apply the artificially bonded or layered combination of the shell A, the foamed filler B and the block C, which is not only high in material cost, but also time consuming and cannot be accelerated. Engineering; and the bonding position of the block C and the shell A and the foamed filler B are easily caused by human error, which affects the buffering, dispersing, and transferring effects of the foamed filler B; Expected.

Representatively, these references show the design techniques of conventional safety helmets in terms of construction and manufacturing; they also reflect the combined structure of these helmets or shells and internal structures, in the case of test and actual use. There are some problems in the process. If redesigning considerations The internal combination structure of the outer helmet or the plastic shell and the foaming material filling body can greatly improve the structural strength thereof, and can further conform to the condition of being compact and high in safety, and the structure is different from the conventional one. Providing a comprehensive protection and support capability will change its transmission dispersion pattern for external impact (or external force) and effectively improve the lack of the old method.

For example, considerations prevent conventional structures from effectively transmitting external types of impact forces through internal structures (or foamed fillers) to various regions of the entire cap, allowing each part of the structure to have an average load The type of impact force has been significantly improved.

Therefore, it is necessary to provide a multi-level organization of the helmet structure design, so that the helmet structure has the effect of supporting external impact force, so that the outermost structure of the helmet has a lower foaming density than the intermediate layer structure, and has better collapse and dispersion. The effect is that the intermediate layer structure has sufficient structural strength or hardness to carry and resist the above-mentioned dispersed impact force directly to the inside of the helmet; and to consider the density of the innermost layer structure of the helmet to have sufficient strength Less than the density of the intermediate layer structure, to provide the effect of further dispersing, transmitting and absorbing the impact force, and achieving the effect of improving and reducing the discomfort of the wearer.

In a preferred consideration, the foaming density of the solid expanded particles or material is gradually increased from the region of the outermost layer structure and the innermost layer structure toward the region of the intermediate layer structure. And further, the combined structure of the safety helmet has a higher structural strength in various directions or regions in order to carry the external impact or lateral impact pressure comprehensively; and, in compliance with the high safety Under the circumstance, the helmet has a structural design with a large and lightweight design, which will increase the overall applicable range. None of these topics have been taught or specifically disclosed in the above references.

The main object of the present invention is to provide an integrally formed safety helmet structure comprising a cap or a casing, a foamed filling body and a structure combined in the casing; the casing, the structure and the hair A geometric array structure is provided at the combined interface of the bubble filling body. When manufacturing, the mold, the molding module and the solid foaming technology are used to integrally form the foamed filler body into a joint shell, a structure and a geometric array structure to form a compact and solid multi-layer reinforced composite type; Under the condition of improving the overall structural strength, the advantages of material saving, light weight, high safety and ease of production are obtained.

According to one embodiment of the present invention, the safety helmet structure is formed, and the inner surface of the casing forms a geometric array structure, which is oriented toward the geometric array structure of the structure. And the foamed filler body coats or bonds the geometric array structure of the shell and the structure to form a unitary reinforced structure; further improving the overall impact resistance and safety of the different types under the condition of further improving the overall impact capability and safety of the type The thickness of the outer plastic shell is greatly thinned, the effect of reducing the overall weight is achieved, and the old manual artificial bonding industry is improved, and the operation error, trouble, cost, and the like are increased.

The above-mentioned bonding means that the foamed filler body is combined with the casing and the structural body; or the foamed filler body passes through or fills the geometrical array structure of the structural and structural bodies of the joint casing.

According to the invention, the geometrical array structure of the housing and the structure has a plurality of polygonal outlines connected to each other (for example, a triangular solid mesh, a honeycomb structure of a hexagonal solid mesh, or a circle). The shape of the three-dimensional mesh, providing solid foamed particles or materials in the three-dimensional mesh, gradually foaming, filling or bonding the shell, the structure and the foamed filler to form an integral type State of the shock absorption structure. Moreover, the density of the foamed filler is greater than the density of the foamed buffer material in the structural array structure of the structure, and the density of the foamed buffer material in the geometric array structure of the structure is greater than that of the geometric array structure of the shell Foaming The density of the cushioning material. That is to say, the shell, the foamed filler and the structure together establish a mechanism for multiple buffering, absorbing and evenly distributing the external impact force.

In a preferred embodiment, the geometric array structure of the housing and the geometric array structure of the structure may limit the expandable space of the solid foamed particles or material during the foaming stage, thereby affecting the development in the above-mentioned structure. The density of the bubble distribution is such that the foaming density of the solid foamed particles or material is increased from the area of the geometrical array structure of the casing and the geometrical array structure of the structure toward the area of the foamed filler. The above-described change in the foaming density formed from the outer and inner layer structures of the helmet assembly toward the intermediate layer structure contributes to the helmet assembly establishing the multiple cushioning, absorbing and evenly distributing the external impact force.

10‧‧‧shell

11‧‧‧ inside

12, 32‧‧‧Geometric array structure

13, 33‧‧‧ wall

14, 34‧‧‧Three-dimensional mesh

15‧‧‧Bottom

20‧‧‧Foam filling body

21‧‧‧First sub-foaming filler

22‧‧‧Second secondary foam filler

23‧‧‧ bottom

30‧‧‧ Structure

35‧‧‧Sub-district

36‧‧‧Inlay

37‧‧‧ Groove

40‧‧‧ buckle or buckle

100‧‧‧assembly

A‧‧‧ plastic shell

B‧‧‧Foam filling body

C‧‧‧Block

D‧‧‧ Space

Figure 1 is a schematic view of the structure of a conventional safety helmet; showing the structural fit of the housing and the foamed filler.

Figure 2 is a schematic view of the structure of another conventional safety helmet; the structural fit of the housing, the block and the foamed filler is depicted.

Figure 3 is a schematic cross-sectional view showing the three-dimensional structure of the present invention; showing the structural cooperation of the casing, the foamed filler and the structure.

Figure 4 is a schematic view of the planar structure of Figure 3; depicting the structural fit of the housing geometry array structure, the foamed filler body, and the structural array structure of the structure.

Fig. 5 is an enlarged schematic view showing a partial structure of Fig. 4; showing a case where different structural densities are formed inside the geometrical array structure of the casing, the foamed filler body, and the structural array structure of the structure.

Figure 6 is a schematic view showing the structure of a modified embodiment of the present invention; the structure of the foamed filler-coated structure is depicted.

Please refer to Figures 3, 4 and 5 for an embodiment of the present invention. The safety helmet can also be an engineering helmet, a mountaineering helmet, a horse hat or a ride. Bicycle, locomotive, skiing, etc. Half-cover or full-face helmet type. A combination of a casing 10, a foamed filler body 20 formed of a cushioned foamed material, and a structural body 30 is included. The casing 10 can be made of a plastic material and has an inner surface 11; the buffer foam material forms a solid foaming granule, and is heated by a mold or a molding module (not shown) to expand and bond the solid foaming granules into The filler body 20 is foamed, and the housing 10 and the structural body 30 are combined, and the integrally formed housing 10 covers the integral composite form (or assembly 100) of the foamed filler body 20 and the structural body 30.

The figure shows that the inner face 11 of the housing is provided with a geometric array of structures 12. The geometric array structure 12 is a pattern that projects from the inner surface 11 of the housing toward the structure 30, having a plurality of walls 13 joined to one another, and collectively defining a plurality of polygonal meshes 14 of polygonal profiles. The polygonal mesh 14 of the polygonal profile may form a triangular solid mesh, a hexagonal mesh honeycomb structure, or a circular mesh mesh structure, and provide a foaming buffer material to be foamed and filled into the three-dimensional mesh 14 to form The foamed filler body (or the first sub-foamed filler body 21) bonds or bonds the casing 10 and the structural body 30 to form an integral impact absorbing structure.

In the embodiment taken, the structure 30 selects a plastic or other similarly highly elastic material to form a tissue profile that approximates the hat-shaped profile of the hemispherical body. The structure 30 is also provided with a geometric array structure 32, the geometric array structure 32 of the structure 30 having a plurality of walls connected to each other 33, and together define a plurality of three-dimensional meshes 34 of polygonal profiles. The polygonal mesh 34 of the polygonal profile may form a triangular solid mesh, a hexagonal mesh honeycomb structure, or a circular mesh mesh structure, and provide a foaming buffer material to be foamed and filled into the three-dimensional mesh 34. The foamed filler body (or the second secondary foamed filler body 22) bonds or bonds the casing 10 and the structural body 30.

Figures 3, 4 and 5 show that the geometric array structure 32 of the structure 30 is oriented toward the geometric array structure 12 of the housing. That is, the three-dimensional mesh 14 of the housing geometry array structure 12 is oriented relative to the three-dimensional mesh 34 of the structural geometry array structure 32.

The figure also shows that the height of the wall 13 of the housing geometry array structure 12 (or the depth of the housing mesh 14) is greater than the height of the wall 33 of the structural geometry array structure 32 (or the structure of the stereoscopic mesh 34). depth). The density of the foamed filler 20 is made larger than the density of the foam cushioning material (ie, the second secondary foamed filler 22) in the structural three-dimensional mesh 34, and the foaming cushioning material in the structural three-dimensional mesh 34 (ie, The density of the secondary foaming filler 22) is greater than the density of the foaming cushioning material (i.e., the first secondary foaming filler 21) in the casing three-dimensional mesh 14. That is, the housing 10, the foamed packing 20, and the structure 30 collectively establish a mechanism for multiple cushioning, absorbing, and evenly distributing the external impact force.

Figures 4 and 5 specifically depict, in a preferred embodiment, the housing geometry array structure 12 and the structure geometry array structure 32, which limits the expandable space of the solid foamed particles or material during the foaming stage. And further affecting the foaming distribution density in the above-mentioned microstructure (12, 32), so that the foaming density of the solid foamed particles or materials, respectively, from the shell geometry array structure 12 and the structure geometry array structure 32 The area is increased toward the area of the foamed filling body 20. The incremental change in foaming density from the outer and inner layer structures of the helmet assembly 100 toward the intermediate layer structure facilitates the assembly 100 to create the multiple and incrementally enhanced cushioning, absorption, and average dispersion transfer externalities from the outside. The role of impact forces.

It will be appreciated that in addition to the height of the walls 13, 33 of the geometric array structure 12, 32 (or the depth of the three-dimensional mesh 14, 34) affecting the size of the density, the number of walls 12, 32 and the three-dimensional mesh 14 The dimensional specifications of 34 also change the density of the foamed cushioning material (i.e., the first secondary foamed filler 21 and the second secondary foamed filler 22) within the three-dimensional mesh 14, 34.

In detail, when the assembly 100 is impacted by an external force (including the side or peripheral region of the assembly 100), the housing 10, the housing geometry array structure 12 is combined with the first sub-foam filling in the three-dimensional mesh 14. The body 21 can directly resist and reduce the external impact force; and, the mating structural body 30, the structural geometric array structure 32, the structural three-dimensional mesh 34, the second secondary foamed filler 22, and the foamed filler body 20 are formed. The tightly coated composite structure not only greatly increases the bonding strength between the boundaries of the foamed particles, but also changes the transfer pattern of the external impact force and reduces the decomposition and cracking of the conventional buffer foam material.

That is, the external impact force can directly pass through the housing geometry array structure 12, the first sub-foamed filler body 21, the foamed filler body 20, and the structural geometry array structure structure 32, the second sub-issue The bubble filling body 22 is completely dispersed and transmitted to the respective regions of the entire assembly, so that the respective portions of the assembly load the component of the external impact force evenly, thereby reducing the possibility that the assembly is damaged by the concentrated force.

Compared with the old method, the structural strengthening characteristic of the above assembly 100 can not only withstand a greater blunt impact force; and, the housing geometric array structure 12, the structural geometric array structure 32 directly enhances The boundary bonding force of the foamed particles is such that the overall ability to withstand sharp impacts is significantly increased. Therefore, the amount or thickness of the foaming material, the outer rubber shell, and the like for supporting the impact force is allowed to be reduced, and the volume and weight of the entire helmet assembly 100 are drastically reduced, and the burden on the wearer is remarkably reduced.

This is because the housing geometry array structure 12, the structure body 30, and the structure geometry array structure 32 increase the overall structural strength of the buffer foam material (or the foam filler body 20) and can be fully loaded. Externally different types and larger positive (from the top of the helmet assembly 100) or lateral (from the side of the helmet assembly 100) impact and compression external forces, so that the additional materials used to create reinforcement or resistance can be Reduce, thin or remove.

Figures 3, 4 and 5 also show that the bottom of the structure 30 forms a ring-shaped sub-region 35; the sub-region 35 is a U-shaped cross-section to assist in increasing the support established by the structure 30. Action and structural strength. And, the structure 30 has the structure of the sub-region 35, and also contributes to the fixing or positioning action of the structure 30 in the molding module.

It should be noted that the bottom portion of the structural body 30 is joined to form a tissue type of the annular sub-region 35, which can increase the structural strength of the entire integrally formed structural body 30; and, a better power transmission and external force bearing function are established. In particular, the structure 30 has the configuration of the secondary zone 35 such that the structural body 30 provides greater support or load strength for lateral impact pressure than conventional structures. And when the foamed filler body 20 is coated or bonded to the structural body 30, the buffer foaming material is filled in the sub-region 35, and the sub-region 35 is wrapped around the bottom portion 23 of the foamed filler body 20 to form an integral composite. Strengthened structure.

In one possible embodiment, the secondary zone 35 provides the function of directly providing the buckle or buckle 40; for example, the depiction of the imaginary line portion of Figure 3. This embodiment can improve the working mode in which the foamed filling body of the conventional safety helmet must additionally be attached with a U-shaped bottom frame combination fastener.

Figures 4 and 5 also depict the configuration in which the sub-zone 35 is provided with a recess 36 to detain the bottom edge 15 of the fixed casing 10. Further, a groove 37 is formed between the inner side of the bottom of the structural body 30 (or the inner side of the sub-region 35) and the foamed filler body 20. The groove 37 can be fitted with a bead or a trim strip (not shown). The inner side described above refers to a direction or position toward the inside of the assembly 100.

The figure shows the position of the structural body 30 at the innermost or innermost layer of the assembly 100 or the foamed filling body 20, so that the foamed filling body 20 is restricted to the area between the casing 10 and the structural body 30. Alternatively, the foamed filler body 20 is coated with the structural body 30, such as the one depicted in Figure 6; this helps to prevent the foamed filler body 20 from cracking and dispersing when the assembly 100 is subjected to external sharp impact. Moreover, after the housing 10, the housing geometry array structure 12, the first sub-foamed filler body 21, and the foamed filler body 20 provide initial cushioning absorption, the external impact force has been uniformly dispersed and transmitted to the structure. The body 30 and the second sub-foamed filler body 22 can surely maintain structural integrity and relatively protect the wearer's head.

In particular, the helmet structure or assembly 100 provides a multi-layered cushioning, absorbing, and evenly dispersed mechanism for transmitting external impact forces under the effect of having an external impact force. The housing 10 and its geometric array structure 12 combine a first sub-foamed filler body 21 having a lower foaming density to form a first layer structure, thereby providing better collapse dispersion and higher foaming density. The foamed filler body 20 forms a second layer or intermediate layer structure having sufficient structural strength or hardness to carry and block the above-mentioned dispersed impact force; and, the structure 30 and its geometric array structure 32 are combined The second sub-foamed filler body 22 having a higher foaming density than the first sub-foamed filler body 21 forms a third layer or an innermost layer structure for providing a function of resisting, dispersing, and transmitting the impact force, and achieving improvement. Reduce the wearer's discomfort.

Typically, this body-formed safety helmet structure includes the following advantages and considerations compared to the old law:

1. The combined structure of the housing 10, the foamed packing 20 and the structure 30 has been redesigned; for example, the housing 10 and the structural body 30 have geometric array structures 12, 32 and walls 13, 33, respectively. The three-dimensional meshes 14, 34 of the matrix arrangement form are configured to allow the foamed material to be injected into the three-dimensional mesh 14, 34 to form the first sub-foamed filler body 21 and the second sub-foamed filler body 22, and And foam filling The filling body 20 forms a portion of the reinforcing structure covering the cross-linking bond, which is significantly different from the structure of the conventional safety helmet.

2. The integrally formed composite structure of the casing 10, the foamed packing 20 and the structural body 30, so that they form a complete co-constructed composite structure for obtaining a more ideal multi-layer or multiple cushioning and absorbing impact force. . Moreover, it completely changes its power (or external impact force) dispersion and transmission type, so that the conventional structure cannot effectively transmit the external impact force to various regions of the foamed filler body, and the foamed filler body is subjected to external force. When the impact is caused, it is easy to cause the load to be excessively concentrated and destroyed, and significant improvement can be obtained.

3. In particular, the housing 10, the housing geometry array structure 12, the first sub-foamed filler body 21, the foamed filler body 20 and the structure 30, the structural geometry array structure 32, the second pair The structural design of the foamed filling body 22 is such that its integrally formed composite structure has higher structural strength than conventional techniques under the conditions of safety and reduced defect rate, and causes them to have different foaming density changes (ie, The foaming density of the solid foamed material is increased from the region of the housing geometric array structure 12 and the structural array structure 32 of the structure toward the area of the foamed filler 20 to form a plurality of layers of different structural structures. The effect of gradually increasing the external impact of the load or the lateral impact pressure can be produced; and, due to the above structural design, the assembly 100 is also subjected to a condition of being manufactured toward a thin and light type, which increases its application range.

Therefore, the present invention provides an effective one-piece safety helmet structure, the spatial pattern of which is different from the conventional ones, and has the advantages unmatched in the old method, and has shown considerable progress, and has been fully complied with. The requirements of the invention patent.

However, the above is only a possible embodiment of the present invention, and is not intended to limit the scope of the present invention, that is, the equivalent variations and modifications made by the scope of the present invention are covered by the scope of the present invention. .

10 housing 11 inner surface 12, 32 geometric array structure 13, 33 wall 14, 34 three-dimensional mesh 15 bottom edge 20 foam filler 21 first secondary foam filler 22 second secondary foam filler 23 bottom 30 Structure 35 sub-zone 36 slot 40 buckle or buckle 100 assembly

Claims (9)

An integrally formed safety helmet structure comprising a casing, a foamed filling body and a combination of structural bodies enclosed in the casing; the foaming filling body is located at a region between the casing and the structural body; the casing has an inner surface and an inner surface A geometric array structure is provided; the geometric array structure of the casing is a shape protruding from the inner surface of the casing, and has a plurality of mutually connected walls, and collectively defines a plurality of three-dimensional mesh; the structure is also provided with a geometric shape. Array structure, the geometric array structure of the structure has a plurality of mutually connected walls, and together define a plurality of three-dimensional mesh; the foamed material located in the three-dimensional mesh of the geometric array structure of the shell, foaming a first sub-foamed filler body, and coupled to the foamed filler; a foamed material located in a three-dimensional mesh of the structural array structure of the structure, foamed to form a second sub-foamed filler, and coupled to the foam a filler body; the density of the foamed filler body is greater than the density of the second auxiliary foam filler, and the density of the second secondary foam filler is greater than the density of the first secondary foam filler; A foaming filler material, structure, and the second sub-foamed foaming filler member filling body together form the overall status of a cartridge. The one-piece safety helmet structure according to claim 1, wherein the three-dimensional mesh of the housing and the three-dimensional mesh of the structure are respectively one of a triangular contour, a hexagonal contour, a polygonal contour and a circular contour; And one of the position of the structural body at the innermost layer of the assembly and the structure being covered by the foamed filler. A body-formed safety helmet structure according to claim 1 or 2, wherein the depth of the three-dimensional mesh of the casing is greater than the depth of the three-dimensional mesh of the structure. The one-piece safety helmet structure according to claim 1 or 2, wherein the shell geometrical array structure and the foaming density of the foam material in the geometric array structure of the structure enable the solid foam material The foaming density is increased from the area of the geometrical array structure of the casing and the geometrical array structure of the structure toward the area of the foamed filler. The body-formed safety helmet structure according to claim 3, wherein the shell-shaped geometric structure and the foaming density of the foamed material in the geometric array structure of the structure enable the solid foaming material to be emitted. The bubble density is increased from the area of the geometrical array structure of the housing and the geometrical array structure of the structure toward the area of the foamed filler. A body-formed safety helmet structure according to claim 1 or 2, wherein the structure forms a hat-shaped profile of a semi-spherical body, and the bottom of the structure is connected to form an annular sub-area; The bottom of the bubble filling body. The body-formed safety helmet structure according to claim 6, wherein the sub-zone is provided with a recessed groove for detaining the bottom edge of the fixed casing; and a recess is formed between the sub-zone and the foamed filler body. . The one-piece safety helmet structure according to any one of claims 1 to 2, wherein the foam filler, the first sub-foam filler and the second sub-foam filler are formed by heating and expanding solid foam particles. The one-piece safety helmet structure according to claim 3, wherein the foam filler, the first sub-foam filler and the second sub-foam filler are formed by heating and expanding solid foam particles.